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Otel tracing MVP (#4188)

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Milos Gajdos 2023-12-11 22:08:40 +00:00 committed by GitHub
commit bdf70a1e46
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1070 changed files with 90847 additions and 18622 deletions
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76
go.mod
View file

@ -15,7 +15,7 @@ require (
github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c
github.com/docker/go-metrics v0.0.1 github.com/docker/go-metrics v0.0.1
github.com/go-jose/go-jose/v3 v3.0.1 github.com/go-jose/go-jose/v3 v3.0.1
github.com/google/uuid v1.3.0 github.com/google/uuid v1.3.1
github.com/gorilla/handlers v1.5.1 github.com/gorilla/handlers v1.5.1
github.com/gorilla/mux v1.8.1 github.com/gorilla/mux v1.8.1
github.com/hashicorp/golang-lru/arc/v2 v2.0.5 github.com/hashicorp/golang-lru/arc/v2 v2.0.5
@ -27,57 +27,79 @@ require (
github.com/redis/go-redis/v9 v9.1.0 github.com/redis/go-redis/v9 v9.1.0
github.com/sirupsen/logrus v1.9.3 github.com/sirupsen/logrus v1.9.3
github.com/spf13/cobra v1.8.0 github.com/spf13/cobra v1.8.0
golang.org/x/crypto v0.14.0 go.opentelemetry.io/contrib/exporters/autoexport v0.46.1
golang.org/x/oauth2 v0.7.0 go.opentelemetry.io/otel/sdk v1.21.0
google.golang.org/api v0.114.0 golang.org/x/crypto v0.15.0
golang.org/x/oauth2 v0.11.0
google.golang.org/api v0.126.0
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
gopkg.in/yaml.v2 v2.4.0 gopkg.in/yaml.v2 v2.4.0
) )
require ( require (
cloud.google.com/go v0.110.0 // indirect github.com/cenkalti/backoff/v4 v4.2.1 // indirect
cloud.google.com/go/compute v1.19.1 // indirect github.com/google/s2a-go v0.1.4 // indirect
github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 // indirect
github.com/rogpeppe/go-internal v1.11.0 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v0.44.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v0.44.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.21.0 // indirect
go.opentelemetry.io/otel/exporters/prometheus v0.44.0 // indirect
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v0.44.0 // indirect
go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.21.0 // indirect
go.opentelemetry.io/otel/sdk/metric v1.21.0 // indirect
go.opentelemetry.io/proto/otlp v1.0.0 // indirect
golang.org/x/sync v0.3.0 // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20230822172742-b8732ec3820d // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d // indirect
)
require (
cloud.google.com/go v0.110.7 // indirect
cloud.google.com/go/compute v1.23.0 // indirect
cloud.google.com/go/compute/metadata v0.2.3 // indirect cloud.google.com/go/compute/metadata v0.2.3 // indirect
cloud.google.com/go/iam v0.13.0 // indirect cloud.google.com/go/iam v1.1.1 // indirect
github.com/Azure/azure-sdk-for-go/sdk/internal v1.3.0 // indirect github.com/Azure/azure-sdk-for-go/sdk/internal v1.3.0 // indirect
github.com/AzureAD/microsoft-authentication-library-for-go v1.0.0 // indirect github.com/AzureAD/microsoft-authentication-library-for-go v1.0.0 // indirect
github.com/beorn7/perks v1.0.1 // indirect github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.2.0 // indirect github.com/cespare/xxhash/v2 v2.2.0 // indirect
github.com/cyphar/filepath-securejoin v0.2.4 // indirect github.com/cyphar/filepath-securejoin v0.2.4 // indirect
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
github.com/felixge/httpsnoop v1.0.1 // indirect github.com/felixge/httpsnoop v1.0.4 // indirect
github.com/go-logr/logr v1.2.4 // indirect github.com/go-logr/logr v1.3.0 // indirect
github.com/go-logr/stdr v1.2.2 // indirect github.com/go-logr/stdr v1.2.2 // indirect
github.com/golang-jwt/jwt/v4 v4.5.0 // indirect github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/protobuf v1.5.3 // indirect github.com/golang/protobuf v1.5.3 // indirect
github.com/google/go-cmp v0.5.9 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
github.com/googleapis/gax-go/v2 v2.7.1 // indirect github.com/googleapis/gax-go/v2 v2.11.0 // indirect
github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/jmespath/go-jmespath v0.4.0 // indirect github.com/jmespath/go-jmespath v0.4.0 // indirect
github.com/kr/pretty v0.2.1 // indirect github.com/kr/pretty v0.3.1 // indirect
github.com/kr/text v0.2.0 // indirect github.com/kr/text v0.2.0 // indirect
github.com/kylelemons/godebug v1.1.0 // indirect github.com/kylelemons/godebug v1.1.0 // indirect
github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 // indirect github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 // indirect
github.com/prometheus/client_golang v1.12.1 // indirect; updated to latest github.com/prometheus/client_golang v1.17.0 // indirect; updated to latest
github.com/prometheus/client_model v0.2.0 // indirect github.com/prometheus/client_model v0.5.0 // indirect
github.com/prometheus/common v0.32.1 // indirect github.com/prometheus/common v0.44.0 // indirect
github.com/prometheus/procfs v0.7.3 // indirect github.com/prometheus/procfs v0.11.1 // indirect
github.com/redis/go-redis/extra/rediscmd/v9 v9.0.5 // indirect github.com/redis/go-redis/extra/rediscmd/v9 v9.0.5 // indirect
github.com/spf13/pflag v1.0.5 // indirect github.com/spf13/pflag v1.0.5 // indirect
go.opencensus.io v0.24.0 // indirect go.opencensus.io v0.24.0 // indirect
go.opentelemetry.io/otel v1.16.0 // indirect go.opentelemetry.io/otel v1.21.0
go.opentelemetry.io/otel/metric v1.16.0 // indirect go.opentelemetry.io/otel/metric v1.21.0 // indirect
go.opentelemetry.io/otel/trace v1.16.0 // indirect go.opentelemetry.io/otel/trace v1.21.0 // indirect
golang.org/x/net v0.17.0 // indirect golang.org/x/net v0.18.0 // indirect
golang.org/x/sys v0.13.0 // indirect golang.org/x/sys v0.14.0 // indirect
golang.org/x/text v0.13.0 // indirect golang.org/x/text v0.14.0 // indirect
golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
google.golang.org/appengine v1.6.7 // indirect google.golang.org/appengine v1.6.7 // indirect
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect google.golang.org/genproto v0.0.0-20230822172742-b8732ec3820d // indirect
google.golang.org/grpc v1.56.3 // indirect google.golang.org/grpc v1.59.0 // indirect
google.golang.org/protobuf v1.30.0 // indirect google.golang.org/protobuf v1.31.0 // indirect
) )

485
go.sum
View file

@ -1,47 +1,15 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= cloud.google.com/go v0.110.7 h1:rJyC7nWRg2jWGZ4wSJ5nY65GTdYJkg0cd/uXb+ACI6o=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= cloud.google.com/go v0.110.7/go.mod h1:+EYjdK8e5RME/VY/qLCAtuyALQ9q67dvuum8i+H5xsI=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= cloud.google.com/go/compute v1.23.0 h1:tP41Zoavr8ptEqaW6j+LQOnyBBhO7OkOMAGrgLopTwY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= cloud.google.com/go/compute v1.23.0/go.mod h1:4tCnrn48xsqlwSAiLf1HXMQk8CONslYbdiEZc9FEIbM=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.110.0 h1:Zc8gqp3+a9/Eyph2KDmcGaPtbKRIoqq4YTlL4NMD0Ys=
cloud.google.com/go v0.110.0/go.mod h1:SJnCLqQ0FCFGSZMUNUf84MV3Aia54kn7pi8st7tMzaY=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/compute v1.19.1 h1:am86mquDUgjGNWxiGn+5PGLbmgiWXlE/yNWpIpNvuXY=
cloud.google.com/go/compute v1.19.1/go.mod h1:6ylj3a05WF8leseCdIf77NK0g1ey+nj5IKd5/kvShxE=
cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY= cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA= cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE= cloud.google.com/go/iam v1.1.1 h1:lW7fzj15aVIXYHREOqjRBV9PsH0Z6u8Y46a1YGvQP4Y=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk= cloud.google.com/go/iam v1.1.1/go.mod h1:A5avdyVL2tCppe4unb0951eI9jreack+RJ0/d+KUZOU=
cloud.google.com/go/iam v0.13.0 h1:+CmB+K0J/33d0zSQ9SlFWUeCCEn5XJA0ZMZ3pHE9u8k=
cloud.google.com/go/iam v0.13.0/go.mod h1:ljOg+rcNfzZ5d6f1nAUJ8ZIxOaZUVoS14bKCtaLZ/D0=
cloud.google.com/go/longrunning v0.4.1 h1:v+yFJOfKC3yZdY6ZUI933pIYdhyhV8S3NpWrXWmg7jM=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
cloud.google.com/go/storage v1.30.1 h1:uOdMxAs8HExqBlnLtnQyP0YkvbiDpdGShGKtx6U/oNM= cloud.google.com/go/storage v1.30.1 h1:uOdMxAs8HExqBlnLtnQyP0YkvbiDpdGShGKtx6U/oNM=
cloud.google.com/go/storage v1.30.1/go.mod h1:NfxhC0UJE1aXSx7CIIbCf7y9HKT7BiccwkR7+P7gN8E= cloud.google.com/go/storage v1.30.1/go.mod h1:NfxhC0UJE1aXSx7CIIbCf7y9HKT7BiccwkR7+P7gN8E=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/AdaLogics/go-fuzz-headers v0.0.0-20221103172237-443f56ff4ba8 h1:d+pBUmsteW5tM87xmVXHZ4+LibHRFn40SPAoZJOg2ak= github.com/AdaLogics/go-fuzz-headers v0.0.0-20221103172237-443f56ff4ba8 h1:d+pBUmsteW5tM87xmVXHZ4+LibHRFn40SPAoZJOg2ak=
github.com/AdaLogics/go-fuzz-headers v0.0.0-20221103172237-443f56ff4ba8/go.mod h1:i9fr2JpcEcY/IHEvzCM3qXUZYOQHgR89dt4es1CgMhc= github.com/AdaLogics/go-fuzz-headers v0.0.0-20221103172237-443f56ff4ba8/go.mod h1:i9fr2JpcEcY/IHEvzCM3qXUZYOQHgR89dt4es1CgMhc=
github.com/Azure/azure-sdk-for-go/sdk/azcore v1.6.0 h1:8kDqDngH+DmVBiCtIjCFTGa7MBnsIOkF9IccInFEbjk= github.com/Azure/azure-sdk-for-go/sdk/azcore v1.6.0 h1:8kDqDngH+DmVBiCtIjCFTGa7MBnsIOkF9IccInFEbjk=
@ -55,12 +23,9 @@ github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.0.0/go.mod h1:2e8rMJtl2+
github.com/AzureAD/microsoft-authentication-library-for-go v1.0.0 h1:OBhqkivkhkMqLPymWEppkm7vgPQY2XsHoEkaMQ0AdZY= github.com/AzureAD/microsoft-authentication-library-for-go v1.0.0 h1:OBhqkivkhkMqLPymWEppkm7vgPQY2XsHoEkaMQ0AdZY=
github.com/AzureAD/microsoft-authentication-library-for-go v1.0.0/go.mod h1:kgDmCTgBzIEPFElEF+FK0SdjAor06dRq2Go927dnQ6o= github.com/AzureAD/microsoft-authentication-library-for-go v1.0.0/go.mod h1:kgDmCTgBzIEPFElEF+FK0SdjAor06dRq2Go927dnQ6o=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
github.com/aws/aws-sdk-go v1.48.10 h1:0LIFG3wp2Dt6PsxKWCg1Y1xRrn2vZnW5/gWdgaBalKg= github.com/aws/aws-sdk-go v1.48.10 h1:0LIFG3wp2Dt6PsxKWCg1Y1xRrn2vZnW5/gWdgaBalKg=
github.com/aws/aws-sdk-go v1.48.10/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk= github.com/aws/aws-sdk-go v1.48.10/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
@ -73,16 +38,19 @@ github.com/bsm/ginkgo/v2 v2.7.0/go.mod h1:AiKlXPm7ItEHNc/2+OkrNG4E0ITzojb9/xWzvQ
github.com/bsm/ginkgo/v2 v2.9.5 h1:rtVBYPs3+TC5iLUVOis1B9tjLTup7Cj5IfzosKtvTJ0= github.com/bsm/ginkgo/v2 v2.9.5 h1:rtVBYPs3+TC5iLUVOis1B9tjLTup7Cj5IfzosKtvTJ0=
github.com/bsm/gomega v1.26.0 h1:LhQm+AFcgV2M0WyKroMASzAzCAJVpAxQXv4SaI9a69Y= github.com/bsm/gomega v1.26.0 h1:LhQm+AFcgV2M0WyKroMASzAzCAJVpAxQXv4SaI9a69Y=
github.com/bsm/gomega v1.26.0/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0= github.com/bsm/gomega v1.26.0/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44= github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs= github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs=
github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc= github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o= github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
@ -105,23 +73,21 @@ github.com/docker/go-metrics v0.0.1/go.mod h1:cG1hvH2utMXtqgqqYE9plW6lDxS3/5ayHz
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-jose/go-jose/v3 v3.0.1 h1:pWmKFVtt+Jl0vBZTIpz/eAKwsm6LkIxDVVbFHKkchhA= github.com/go-jose/go-jose/v3 v3.0.1 h1:pWmKFVtt+Jl0vBZTIpz/eAKwsm6LkIxDVVbFHKkchhA=
github.com/go-jose/go-jose/v3 v3.0.1/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8= github.com/go-jose/go-jose/v3 v3.0.1/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk= github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ= github.com/go-logr/logr v1.3.0 h1:2y3SDp0ZXuc6/cjLSZ+Q3ir+QB9T/iG5yYRXqsagWSY=
github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= github.com/go-logr/logr v1.3.0/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag= github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE= github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
@ -130,23 +96,15 @@ github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7a
github.com/golang-jwt/jwt/v4 v4.5.0 h1:7cYmW1XlMY7h7ii7UhUyChSgS5wUJEnm9uZVTGqOWzg= github.com/golang-jwt/jwt/v4 v4.5.0 h1:7cYmW1XlMY7h7ii7UhUyChSgS5wUJEnm9uZVTGqOWzg=
github.com/golang-jwt/jwt/v4 v4.5.0/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0= github.com/golang-jwt/jwt/v4 v4.5.0/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= github.com/golang/glog v1.1.2 h1:DVjP2PbBOzHyzA+dn3WhHIq4NdVu3Q+pvivFICf/7fo=
github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE=
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw= github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8= github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA= github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs= github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
@ -159,131 +117,97 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg= github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
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github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U= github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U= github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
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github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM= github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM=
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github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 h1:KoWmjvw+nsYOo29YJK9vDA65RGE3NrOnUtO7a+RF9HU= github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 h1:KoWmjvw+nsYOo29YJK9vDA65RGE3NrOnUtO7a+RF9HU=
github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8/go.mod h1:HKlIX3XHQyzLZPlr7++PzdhaXEj94dEiJgZDTsxEqUI= github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8/go.mod h1:HKlIX3XHQyzLZPlr7++PzdhaXEj94dEiJgZDTsxEqUI=
github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw= github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo= github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g= github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g=
github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M= github.com/prometheus/client_golang v1.17.0 h1:rl2sfwZMtSthVU752MqfjQozy7blglC+1SOtjMAMh+Q=
github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0= github.com/prometheus/client_golang v1.17.0/go.mod h1:VeL+gMmOAxkS2IqfCq0ZmHSL+LjWfWDUmp1mBz9JgUY=
github.com/prometheus/client_golang v1.12.1 h1:ZiaPsmm9uiBeaSMRznKsCDNtPCS0T3JVDGF+06gjBzk=
github.com/prometheus/client_golang v1.12.1/go.mod h1:3Z9XVyYiZYEO+YQWt3RD2R3jrbd179Rt297l4aS6nDY=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo= github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA= github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA= github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M= github.com/prometheus/client_model v0.5.0 h1:VQw1hfvPvk3Uv6Qf29VrPF32JB6rtbgI6cYPYQjL0Qw=
github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA= github.com/prometheus/client_model v0.5.0/go.mod h1:dTiFglRmd66nLR9Pv9f0mZi7B7fk5Pm3gvsjB5tr+kI=
github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4= github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc= github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc=
github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo= github.com/prometheus/common v0.44.0 h1:+5BrQJwiBB9xsMygAB3TNvpQKOwlkc25LbISbrdOOfY=
github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc= github.com/prometheus/common v0.44.0/go.mod h1:ofAIvZbQ1e/nugmZGz4/qCb9Ap1VoSTIO7x0VV9VvuY=
github.com/prometheus/common v0.32.1 h1:hWIdL3N2HoUx3B8j3YN9mWor0qhY/NlEKZEaXxuIRh4=
github.com/prometheus/common v0.32.1/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk= github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA= github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ= github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU= github.com/prometheus/procfs v0.11.1 h1:xRC8Iq1yyca5ypa9n1EZnWZkt7dwcoRPQwX/5gwaUuI=
github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA= github.com/prometheus/procfs v0.11.1/go.mod h1:eesXgaPo1q7lBpVMoMy0ZOFTth9hBn4W/y0/p/ScXhY=
github.com/prometheus/procfs v0.7.3 h1:4jVXhlkAyzOScmCkXBTOLRLTz8EeU+eyjrwB/EPq0VU=
github.com/prometheus/procfs v0.7.3/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
github.com/redis/go-redis/extra/rediscmd/v9 v9.0.5 h1:EaDatTxkdHG+U3Bk4EUr+DZ7fOGwTfezUiUJMaIcaho= github.com/redis/go-redis/extra/rediscmd/v9 v9.0.5 h1:EaDatTxkdHG+U3Bk4EUr+DZ7fOGwTfezUiUJMaIcaho=
github.com/redis/go-redis/extra/rediscmd/v9 v9.0.5/go.mod h1:fyalQWdtzDBECAQFBJuQe5bzQ02jGd5Qcbgb97Flm7U= github.com/redis/go-redis/extra/rediscmd/v9 v9.0.5/go.mod h1:fyalQWdtzDBECAQFBJuQe5bzQ02jGd5Qcbgb97Flm7U=
github.com/redis/go-redis/extra/redisotel/v9 v9.0.5 h1:EfpWLLCyXw8PSM2/XNJLjI3Pb27yVE+gIAfeqp8LUCc= github.com/redis/go-redis/extra/redisotel/v9 v9.0.5 h1:EfpWLLCyXw8PSM2/XNJLjI3Pb27yVE+gIAfeqp8LUCc=
@ -291,11 +215,12 @@ github.com/redis/go-redis/extra/redisotel/v9 v9.0.5/go.mod h1:WZjPDy7VNzn77AAfnA
github.com/redis/go-redis/v9 v9.0.5/go.mod h1:WqMKv5vnQbRuZstUwxQI195wHy+t4PuXDOjzMvcuQHk= github.com/redis/go-redis/v9 v9.0.5/go.mod h1:WqMKv5vnQbRuZstUwxQI195wHy+t4PuXDOjzMvcuQHk=
github.com/redis/go-redis/v9 v9.1.0 h1:137FnGdk+EQdCbye1FW+qOEcY5S+SpY9T0NiuqvtfMY= github.com/redis/go-redis/v9 v9.1.0 h1:137FnGdk+EQdCbye1FW+qOEcY5S+SpY9T0NiuqvtfMY=
github.com/redis/go-redis/v9 v9.1.0/go.mod h1:urWj3He21Dj5k4TK1y59xH8Uj6ATueP8AH1cY3lZl4c= github.com/redis/go-redis/v9 v9.1.0/go.mod h1:urWj3He21Dj5k4TK1y59xH8Uj6ATueP8AH1cY3lZl4c=
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4= github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo= github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0= github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ= github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ= github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
@ -309,69 +234,63 @@ github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSS
github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY= github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0= go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo= go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
go.opentelemetry.io/otel v1.16.0 h1:Z7GVAX/UkAXPKsy94IU+i6thsQS4nb7LviLpnaNeW8s= go.opentelemetry.io/contrib/exporters/autoexport v0.46.1 h1:ysCfPZB9AjUlMa1UHYup3c9dAOCMQX/6sxSfPBUoxHw=
go.opentelemetry.io/otel v1.16.0/go.mod h1:vl0h9NUa1D5s1nv3A5vZOYWn8av4K8Ml6JDeHrT/bx4= go.opentelemetry.io/contrib/exporters/autoexport v0.46.1/go.mod h1:ha0aiYm+DOPsLHjh0zoQ8W8sLT+LJ58J3j47lGpSLrU=
go.opentelemetry.io/otel/metric v1.16.0 h1:RbrpwVG1Hfv85LgnZ7+txXioPDoh6EdbZHo26Q3hqOo= go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1 h1:aFJWCqJMNjENlcleuuOkGAPH82y0yULBScfXcIEdS24=
go.opentelemetry.io/otel/metric v1.16.0/go.mod h1:QE47cpOmkwipPiefDwo2wDzwJrlfxxNYodqc4xnGCo4= go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1/go.mod h1:sEGXWArGqc3tVa+ekntsN65DmVbVeW+7lTKTjZF3/Fo=
go.opentelemetry.io/otel/sdk v1.16.0 h1:Z1Ok1YsijYL0CSJpHt4cS3wDDh7p572grzNrBMiMWgE= go.opentelemetry.io/otel v1.21.0 h1:hzLeKBZEL7Okw2mGzZ0cc4k/A7Fta0uoPgaJCr8fsFc=
go.opentelemetry.io/otel/trace v1.16.0 h1:8JRpaObFoW0pxuVPapkgH8UhHQj+bJW8jJsCZEu5MQs= go.opentelemetry.io/otel v1.21.0/go.mod h1:QZzNPQPm1zLX4gZK4cMi+71eaorMSGT3A4znnUvNNEo=
go.opentelemetry.io/otel/trace v1.16.0/go.mod h1:Yt9vYq1SdNz3xdjZZK7wcXv1qv2pwLkqr2QVwea0ef0= go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v0.44.0 h1:jd0+5t/YynESZqsSyPz+7PAFdEop0dlN0+PkyHYo8oI=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v0.44.0/go.mod h1:U707O40ee1FpQGyhvqnzmCJm1Wh6OX6GGBVn0E6Uyyk=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v0.44.0 h1:bflGWrfYyuulcdxf14V6n9+CoQcu5SAAdHmDPAJnlps=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v0.44.0/go.mod h1:qcTO4xHAxZLaLxPd60TdE88rxtItPHgHWqOhOGRr0as=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0 h1:cl5P5/GIfFh4t6xyruOgJP5QiA1pw4fYYdv6nc6CBWw=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0/go.mod h1:zgBdWWAu7oEEMC06MMKc5NLbA/1YDXV1sMpSqEeLQLg=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0 h1:tIqheXEFWAZ7O8A7m+J0aPTmpJN3YQ7qetUAdkkkKpk=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0/go.mod h1:nUeKExfxAQVbiVFn32YXpXZZHZ61Cc3s3Rn1pDBGAb0=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.21.0 h1:digkEZCJWobwBqMwC0cwCq8/wkkRy/OowZg5OArWZrM=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.21.0/go.mod h1:/OpE/y70qVkndM0TrxT4KBoN3RsFZP0QaofcfYrj76I=
go.opentelemetry.io/otel/exporters/prometheus v0.44.0 h1:08qeJgaPC0YEBu2PQMbqU3rogTlyzpjhCI2b58Yn00w=
go.opentelemetry.io/otel/exporters/prometheus v0.44.0/go.mod h1:ERL2uIeBtg4TxZdojHUwzZfIFlUIjZtxubT5p4h1Gjg=
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v0.44.0 h1:dEZWPjVN22urgYCza3PXRUGEyCB++y1sAqm6guWFesk=
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v0.44.0/go.mod h1:sTt30Evb7hJB/gEk27qLb1+l9n4Tb8HvHkR0Wx3S6CU=
go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.21.0 h1:VhlEQAPp9R1ktYfrPk5SOryw1e9LDDTZCbIPFrho0ec=
go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.21.0/go.mod h1:kB3ufRbfU+CQ4MlUcqtW8Z7YEOBeK2DJ6CmR5rYYF3E=
go.opentelemetry.io/otel/metric v1.21.0 h1:tlYWfeo+Bocx5kLEloTjbcDwBuELRrIFxwdQ36PlJu4=
go.opentelemetry.io/otel/metric v1.21.0/go.mod h1:o1p3CA8nNHW8j5yuQLdc1eeqEaPfzug24uvsyIEJRWM=
go.opentelemetry.io/otel/sdk v1.21.0 h1:FTt8qirL1EysG6sTQRZ5TokkU8d0ugCj8htOgThZXQ8=
go.opentelemetry.io/otel/sdk v1.21.0/go.mod h1:Nna6Yv7PWTdgJHVRD9hIYywQBRx7pbox6nwBnZIxl/E=
go.opentelemetry.io/otel/sdk/metric v1.21.0 h1:smhI5oD714d6jHE6Tie36fPx4WDFIg+Y6RfAY4ICcR0=
go.opentelemetry.io/otel/sdk/metric v1.21.0/go.mod h1:FJ8RAsoPGv/wYMgBdUJXOm+6pzFY3YdljnXtv1SBE8Q=
go.opentelemetry.io/otel/trace v1.21.0 h1:WD9i5gzvoUPuXIXH24ZNBudiarZDKuekPqi/E8fpfLc=
go.opentelemetry.io/otel/trace v1.21.0/go.mod h1:LGbsEB0f9LGjN+OZaQQ26sohbOmiMR+BaslueVtS/qQ=
go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
go.opentelemetry.io/proto/otlp v1.0.0 h1:T0TX0tmXU8a3CbNXzEKGeU5mIVOdf0oykP+u2lIVU/I=
go.opentelemetry.io/proto/otlp v1.0.0/go.mod h1:Sy6pihPLfYHkr3NkUbEhGHFhINUSI/v80hjKIs5JXpM=
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190911031432-227b76d455e7/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190911031432-227b76d455e7/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc= golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4= golang.org/x/crypto v0.0.0-20220314234659-1baeb1ce4c0b/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/crypto v0.15.0 h1:frVn1TEaCEaZcn3Tmd7Y2b5KKPaZ+I32Q2OA3kYp5TA=
golang.org/x/crypto v0.15.0/go.mod h1:4ChreQoLWfG3xLDer1WdlH5NdlQ3+mwnQq1YTKY+72g=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY=
golang.org/x/exp v0.0.0-20191129062945-2f5052295587/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU= golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -379,222 +298,94 @@ golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73r
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks= golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8= google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200204135345-fa8e72b47b90/go.mod h1:GmwEX6Z4W5gMy59cAlVYjN9JhxgbQH6Gn+gFDQe2lzA=
google.golang.org/genproto v0.0.0-20200212174721-66ed5ce911ce/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200228133532-8c2c7df3a383/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200305110556-506484158171/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200312145019-da6875a35672/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200430143042-b979b6f78d84/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200511104702-f5ebc3bea380/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200515170657-fc4c6c6a6587/go.mod h1:YsZOwe1myG/8QRHRsmBRE1LrgQY60beZKjly0O1fX9U=
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo= google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7FcilCzHH/e9qn6dsT145K34l5v+OpcnNgKAAA= google.golang.org/genproto v0.0.0-20230822172742-b8732ec3820d h1:VBu5YqKPv6XiJ199exd8Br+Aetz+o08F+PLMnwJQHAY=
google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no= google.golang.org/genproto v0.0.0-20230822172742-b8732ec3820d/go.mod h1:yZTlhN0tQnXo3h00fuXNCxJdLdIdnVFVBaRJ5LWBbw4=
google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no= google.golang.org/genproto/googleapis/api v0.0.0-20230822172742-b8732ec3820d h1:DoPTO70H+bcDXcd39vOqb2viZxgqeBeSGtZ55yZU4/Q=
google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no= google.golang.org/genproto/googleapis/api v0.0.0-20230822172742-b8732ec3820d/go.mod h1:KjSP20unUpOx5kyQUFa7k4OJg0qeJ7DEZflGDu2p6Bk=
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 h1:KpwkzHKEF7B9Zxg18WzOa7djJ+Ha5DzthMyZYQfEn2A= google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d h1:uvYuEyMHKNt+lT4K3bN6fGswmK8qSvcreM3BwjDh+y4=
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1/go.mod h1:nKE/iIaLqn2bQwXBg8f1g2Ylh6r5MN5CmZvuzZCgsCU= google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d/go.mod h1:+Bk1OCOj40wS2hwAMA+aCW9ypzm63QTBBHp6lQ3p+9M=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg= google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY= google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk= google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk= google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc= google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/grpc v1.56.3 h1:8I4C0Yq1EjstUzUJzpcRVbuYA2mODtEmpWiQoN/b2nc= google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
google.golang.org/grpc v1.56.3/go.mod h1:I9bI3vqKfayGqPUAwGdOSu7kt6oIJLixfffKrpXqQ9s= google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
google.golang.org/grpc v1.59.0 h1:Z5Iec2pjwb+LEOqzpB2MR12/eKFhDPhuqW91O+4bwUk=
google.golang.org/grpc v1.59.0/go.mod h1:aUPDwccQo6OTjy7Hct4AfBPD1GptF4fyUjIkQ9YtF98=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8= google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0= google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM= google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -603,25 +394,19 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU= google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU= google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU= google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c= google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng= google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
@ -629,12 +414,4 @@ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

15
registry/registry.go
View file

@ -17,6 +17,7 @@ import (
gorhandlers "github.com/gorilla/handlers" gorhandlers "github.com/gorilla/handlers"
"github.com/sirupsen/logrus" "github.com/sirupsen/logrus"
"github.com/spf13/cobra" "github.com/spf13/cobra"
"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
"golang.org/x/crypto/acme" "golang.org/x/crypto/acme"
"golang.org/x/crypto/acme/autocert" "golang.org/x/crypto/acme/autocert"
@ -25,6 +26,7 @@ import (
"github.com/distribution/distribution/v3/internal/dcontext" "github.com/distribution/distribution/v3/internal/dcontext"
"github.com/distribution/distribution/v3/registry/handlers" "github.com/distribution/distribution/v3/registry/handlers"
"github.com/distribution/distribution/v3/registry/listener" "github.com/distribution/distribution/v3/registry/listener"
"github.com/distribution/distribution/v3/tracing"
"github.com/distribution/distribution/v3/version" "github.com/distribution/distribution/v3/version"
) )
@ -152,6 +154,12 @@ func NewRegistry(ctx context.Context, config *configuration.Configuration) (*Reg
handler = applyHandlerMiddleware(config, handler) handler = applyHandlerMiddleware(config, handler)
} }
err = tracing.InitOpenTelemetry(app.Context)
if err != nil {
return nil, fmt.Errorf("error during open telemetry initialization: %v", err)
}
handler = otelHandler(handler)
server := &http.Server{ server := &http.Server{
Handler: handler, Handler: handler,
} }
@ -163,6 +171,13 @@ func NewRegistry(ctx context.Context, config *configuration.Configuration) (*Reg
}, nil }, nil
} }
// otelHandler returns an http.Handler that wraps the provided `next` handler with OpenTelemetry instrumentation.
// This instrumentation tracks each HTTP request, creating spans with names derived from the request method and URL path.
func otelHandler(next http.Handler) http.Handler {
return otelhttp.NewHandler(next, "",
otelhttp.WithSpanNameFormatter(func(_ string, r *http.Request) string { return r.Method + " " + r.URL.Path }))
}
// takes a list of cipher suites and converts it to a list of respective tls constants // takes a list of cipher suites and converts it to a list of respective tls constants
// if an empty list is provided, then the defaults will be used // if an empty list is provided, then the defaults will be used
func getCipherSuites(names []string) ([]uint16, error) { func getCipherSuites(names []string) ([]uint16, error) {

49
tracing/tracing.go Normal file
View file

@ -0,0 +1,49 @@
package tracing
import (
"context"
"github.com/distribution/distribution/v3/version"
"go.opentelemetry.io/contrib/exporters/autoexport"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/sdk/resource"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
)
const (
// ServiceName is trace service name
serviceName = "distribution"
// DefaultSamplingRatio default sample ratio
defaultSamplingRatio = 1
)
// InitOpenTelemetry initializes OpenTelemetry for the application. This function sets up the
// necessary components for collecting telemetry data, such as traces.
func InitOpenTelemetry(ctx context.Context) error {
res := resource.NewWithAttributes(
semconv.SchemaURL,
semconv.ServiceNameKey.String(serviceName),
semconv.ServiceVersionKey.String(version.Version),
)
exp, err := autoexport.NewSpanExporter(ctx)
if err != nil {
return err
}
sp := sdktrace.NewBatchSpanProcessor(exp)
provider := sdktrace.NewTracerProvider(
sdktrace.WithSampler(sdktrace.TraceIDRatioBased(defaultSamplingRatio)),
sdktrace.WithResource(res),
sdktrace.WithSpanProcessor(sp),
)
otel.SetTracerProvider(provider)
pr := propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{})
otel.SetTextMapPropagator(pr)
return nil
}

2
vendor/cloud.google.com/go/compute/internal/version.go generated vendored
View file

@ -15,4 +15,4 @@
package internal package internal
// Version is the current tagged release of the library. // Version is the current tagged release of the library.
const Version = "1.19.1" const Version = "1.23.0"

29
vendor/cloud.google.com/go/iam/CHANGES.md generated vendored
View file

@ -1,5 +1,34 @@
# Changes # Changes
## [1.1.1](https://github.com/googleapis/google-cloud-go/compare/iam/v1.1.0...iam/v1.1.1) (2023-06-20)
### Bug Fixes
* **iam:** REST query UpdateMask bug ([df52820](https://github.com/googleapis/google-cloud-go/commit/df52820b0e7721954809a8aa8700b93c5662dc9b))
## [1.1.0](https://github.com/googleapis/google-cloud-go/compare/iam/v1.0.1...iam/v1.1.0) (2023-05-30)
### Features
* **iam:** Update all direct dependencies ([b340d03](https://github.com/googleapis/google-cloud-go/commit/b340d030f2b52a4ce48846ce63984b28583abde6))
## [1.0.1](https://github.com/googleapis/google-cloud-go/compare/iam/v1.0.0...iam/v1.0.1) (2023-05-08)
### Bug Fixes
* **iam:** Update grpc to v1.55.0 ([1147ce0](https://github.com/googleapis/google-cloud-go/commit/1147ce02a990276ca4f8ab7a1ab65c14da4450ef))
## [1.0.0](https://github.com/googleapis/google-cloud-go/compare/iam/v0.13.0...iam/v1.0.0) (2023-04-04)
### Features
* **iam:** Promote to GA ([#7627](https://github.com/googleapis/google-cloud-go/issues/7627)) ([b351906](https://github.com/googleapis/google-cloud-go/commit/b351906a10e17a02d7f7e2551bc1585fd9dc3742))
## [0.13.0](https://github.com/googleapis/google-cloud-go/compare/iam/v0.12.0...iam/v0.13.0) (2023-03-15) ## [0.13.0](https://github.com/googleapis/google-cloud-go/compare/iam/v0.12.0...iam/v0.13.0) (2023-03-15)

44
vendor/cloud.google.com/go/iam/apiv1/iampb/iam_policy.pb.go generated vendored
View file

@ -14,8 +14,8 @@
// Code generated by protoc-gen-go. DO NOT EDIT. // Code generated by protoc-gen-go. DO NOT EDIT.
// versions: // versions:
// protoc-gen-go v1.26.0 // protoc-gen-go v1.30.0
// protoc v3.21.9 // protoc v4.23.2
// source: google/iam/v1/iam_policy.proto // source: google/iam/v1/iam_policy.proto
package iampb package iampb
@ -342,37 +342,37 @@ var file_google_iam_v1_iam_policy_proto_rawDesc = []byte{
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} }
var ( var (

24
vendor/cloud.google.com/go/iam/apiv1/iampb/options.pb.go generated vendored
View file

@ -14,8 +14,8 @@
// Code generated by protoc-gen-go. DO NOT EDIT. // Code generated by protoc-gen-go. DO NOT EDIT.
// versions: // versions:
// protoc-gen-go v1.26.0 // protoc-gen-go v1.30.0
// protoc v3.21.9 // protoc v4.23.2
// source: google/iam/v1/options.proto // source: google/iam/v1/options.proto
package iampb package iampb
@ -111,16 +111,16 @@ var file_google_iam_v1_options_proto_rawDesc = []byte{
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0x6c, 0x6f, 0x75, 0x64, 0x2e, 0x49, 0x61, 0x6d, 0x2e, 0x56, 0x31, 0xca, 0x02, 0x13, 0x47, 0x6f, 0x2e, 0x56, 0x31, 0xca, 0x02, 0x13, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x5c, 0x43, 0x6c, 0x6f,
0x6f, 0x67, 0x6c, 0x65, 0x5c, 0x43, 0x6c, 0x6f, 0x75, 0x64, 0x5c, 0x49, 0x61, 0x6d, 0x5c, 0x56, 0x75, 0x64, 0x5c, 0x49, 0x61, 0x6d, 0x5c, 0x56, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33, 0x33,
} }
var ( var (

65
vendor/cloud.google.com/go/iam/apiv1/iampb/policy.pb.go generated vendored
View file

@ -14,8 +14,8 @@
// Code generated by protoc-gen-go. DO NOT EDIT. // Code generated by protoc-gen-go. DO NOT EDIT.
// versions: // versions:
// protoc-gen-go v1.26.0 // protoc-gen-go v1.30.0
// protoc v3.21.9 // protoc v4.23.2
// source: google/iam/v1/policy.proto // source: google/iam/v1/policy.proto
package iampb package iampb
@ -214,7 +214,8 @@ func (AuditConfigDelta_Action) EnumDescriptor() ([]byte, []int) {
// only if the expression evaluates to `true`. A condition can add constraints // only if the expression evaluates to `true`. A condition can add constraints
// based on attributes of the request, the resource, or both. To learn which // based on attributes of the request, the resource, or both. To learn which
// resources support conditions in their IAM policies, see the // resources support conditions in their IAM policies, see the
// [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies). // [IAM
// documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
// //
// **JSON example:** // **JSON example:**
// //
@ -237,7 +238,8 @@ func (AuditConfigDelta_Action) EnumDescriptor() ([]byte, []int) {
// "condition": { // "condition": {
// "title": "expirable access", // "title": "expirable access",
// "description": "Does not grant access after Sep 2020", // "description": "Does not grant access after Sep 2020",
// "expression": "request.time < timestamp('2020-10-01T00:00:00.000Z')", // "expression": "request.time <
// timestamp('2020-10-01T00:00:00.000Z')",
// } // }
// } // }
// ], // ],
@ -279,10 +281,10 @@ type Policy struct {
// Any operation that affects conditional role bindings must specify version // Any operation that affects conditional role bindings must specify version
// `3`. This requirement applies to the following operations: // `3`. This requirement applies to the following operations:
// //
// - Getting a policy that includes a conditional role binding // * Getting a policy that includes a conditional role binding
// - Adding a conditional role binding to a policy // * Adding a conditional role binding to a policy
// - Changing a conditional role binding in a policy // * Changing a conditional role binding in a policy
// - Removing any role binding, with or without a condition, from a policy // * Removing any role binding, with or without a condition, from a policy
// that includes conditions // that includes conditions
// //
// **Important:** If you use IAM Conditions, you must include the `etag` field // **Important:** If you use IAM Conditions, you must include the `etag` field
@ -294,7 +296,8 @@ type Policy struct {
// specify any valid version or leave the field unset. // specify any valid version or leave the field unset.
// //
// To learn which resources support conditions in their IAM policies, see the // To learn which resources support conditions in their IAM policies, see the
// [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies). // [IAM
// documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
Version int32 `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"` Version int32 `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
// Associates a list of `members`, or principals, with a `role`. Optionally, // Associates a list of `members`, or principals, with a `role`. Optionally,
// may specify a `condition` that determines how and when the `bindings` are // may specify a `condition` that determines how and when the `bindings` are
@ -396,28 +399,29 @@ type Binding struct {
// Specifies the principals requesting access for a Cloud Platform resource. // Specifies the principals requesting access for a Cloud Platform resource.
// `members` can have the following values: // `members` can have the following values:
// //
// - `allUsers`: A special identifier that represents anyone who is // * `allUsers`: A special identifier that represents anyone who is
// on the internet; with or without a Google account. // on the internet; with or without a Google account.
// //
// - `allAuthenticatedUsers`: A special identifier that represents anyone // * `allAuthenticatedUsers`: A special identifier that represents anyone
// who is authenticated with a Google account or a service account. // who is authenticated with a Google account or a service account.
// //
// - `user:{emailid}`: An email address that represents a specific Google // * `user:{emailid}`: An email address that represents a specific Google
// account. For example, `alice@example.com` . // account. For example, `alice@example.com` .
// //
// - `serviceAccount:{emailid}`: An email address that represents a service //
// * `serviceAccount:{emailid}`: An email address that represents a service
// account. For example, `my-other-app@appspot.gserviceaccount.com`. // account. For example, `my-other-app@appspot.gserviceaccount.com`.
// //
// - `group:{emailid}`: An email address that represents a Google group. // * `group:{emailid}`: An email address that represents a Google group.
// For example, `admins@example.com`. // For example, `admins@example.com`.
// //
// - `deleted:user:{emailid}?uid={uniqueid}`: An email address (plus unique // * `deleted:user:{emailid}?uid={uniqueid}`: An email address (plus unique
// identifier) representing a user that has been recently deleted. For // identifier) representing a user that has been recently deleted. For
// example, `alice@example.com?uid=123456789012345678901`. If the user is // example, `alice@example.com?uid=123456789012345678901`. If the user is
// recovered, this value reverts to `user:{emailid}` and the recovered user // recovered, this value reverts to `user:{emailid}` and the recovered user
// retains the role in the binding. // retains the role in the binding.
// //
// - `deleted:serviceAccount:{emailid}?uid={uniqueid}`: An email address (plus // * `deleted:serviceAccount:{emailid}?uid={uniqueid}`: An email address (plus
// unique identifier) representing a service account that has been recently // unique identifier) representing a service account that has been recently
// deleted. For example, // deleted. For example,
// `my-other-app@appspot.gserviceaccount.com?uid=123456789012345678901`. // `my-other-app@appspot.gserviceaccount.com?uid=123456789012345678901`.
@ -425,14 +429,17 @@ type Binding struct {
// `serviceAccount:{emailid}` and the undeleted service account retains the // `serviceAccount:{emailid}` and the undeleted service account retains the
// role in the binding. // role in the binding.
// //
// - `deleted:group:{emailid}?uid={uniqueid}`: An email address (plus unique // * `deleted:group:{emailid}?uid={uniqueid}`: An email address (plus unique
// identifier) representing a Google group that has been recently // identifier) representing a Google group that has been recently
// deleted. For example, `admins@example.com?uid=123456789012345678901`. If // deleted. For example, `admins@example.com?uid=123456789012345678901`. If
// the group is recovered, this value reverts to `group:{emailid}` and the // the group is recovered, this value reverts to `group:{emailid}` and the
// recovered group retains the role in the binding. // recovered group retains the role in the binding.
// //
// - `domain:{domain}`: The G Suite domain (primary) that represents all the //
// * `domain:{domain}`: The G Suite domain (primary) that represents all the
// users of that domain. For example, `google.com` or `example.com`. // users of that domain. For example, `google.com` or `example.com`.
//
//
Members []string `protobuf:"bytes,2,rep,name=members,proto3" json:"members,omitempty"` Members []string `protobuf:"bytes,2,rep,name=members,proto3" json:"members,omitempty"`
// The condition that is associated with this binding. // The condition that is associated with this binding.
// //
@ -640,7 +647,8 @@ type AuditLogConfig struct {
LogType AuditLogConfig_LogType `protobuf:"varint,1,opt,name=log_type,json=logType,proto3,enum=google.iam.v1.AuditLogConfig_LogType" json:"log_type,omitempty"` LogType AuditLogConfig_LogType `protobuf:"varint,1,opt,name=log_type,json=logType,proto3,enum=google.iam.v1.AuditLogConfig_LogType" json:"log_type,omitempty"`
// Specifies the identities that do not cause logging for this type of // Specifies the identities that do not cause logging for this type of
// permission. // permission.
// Follows the same format of [Binding.members][google.iam.v1.Binding.members]. // Follows the same format of
// [Binding.members][google.iam.v1.Binding.members].
ExemptedMembers []string `protobuf:"bytes,2,rep,name=exempted_members,json=exemptedMembers,proto3" json:"exempted_members,omitempty"` ExemptedMembers []string `protobuf:"bytes,2,rep,name=exempted_members,json=exemptedMembers,proto3" json:"exempted_members,omitempty"`
} }
@ -999,16 +1007,15 @@ var file_google_iam_v1_policy_proto_rawDesc = []byte{
0x41, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x16, 0x0a, 0x12, 0x41, 0x43, 0x54, 0x49, 0x4f, 0x4e, 0x41, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x16, 0x0a, 0x12, 0x41, 0x43, 0x54, 0x49, 0x4f, 0x4e,
0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45, 0x44, 0x10, 0x00, 0x12, 0x07, 0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45, 0x44, 0x10, 0x00, 0x12, 0x07,
0x0a, 0x03, 0x41, 0x44, 0x44, 0x10, 0x01, 0x12, 0x0a, 0x0a, 0x06, 0x52, 0x45, 0x4d, 0x4f, 0x56, 0x0a, 0x03, 0x41, 0x44, 0x44, 0x10, 0x01, 0x12, 0x0a, 0x0a, 0x06, 0x52, 0x45, 0x4d, 0x4f, 0x56,
0x45, 0x10, 0x02, 0x42, 0x83, 0x01, 0x0a, 0x11, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x45, 0x10, 0x02, 0x42, 0x7c, 0x0a, 0x11, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
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0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x67, 0x65, 0x6e, 0x70, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x2f, 0x69, 0x61, 0x6d,
0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x2f, 0x61, 0x70, 0x69, 0x76, 0x31, 0x2f, 0x69, 0x61, 0x6d, 0x70, 0x62, 0x3b, 0x69, 0x61, 0x6d,
0x69, 0x61, 0x6d, 0x2f, 0x76, 0x31, 0x3b, 0x69, 0x61, 0x6d, 0xf8, 0x01, 0x01, 0xaa, 0x02, 0x13, 0x70, 0x62, 0xf8, 0x01, 0x01, 0xaa, 0x02, 0x13, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x43,
0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x43, 0x6c, 0x6f, 0x75, 0x64, 0x2e, 0x49, 0x61, 0x6d, 0x6c, 0x6f, 0x75, 0x64, 0x2e, 0x49, 0x61, 0x6d, 0x2e, 0x56, 0x31, 0xca, 0x02, 0x13, 0x47, 0x6f,
0x2e, 0x56, 0x31, 0xca, 0x02, 0x13, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x5c, 0x43, 0x6c, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x5c, 0x43, 0x6c, 0x6f, 0x75, 0x64, 0x5c, 0x49, 0x61, 0x6d, 0x5c, 0x56,
0x75, 0x64, 0x5c, 0x49, 0x61, 0x6d, 0x5c, 0x56, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
0x33,
} }
var ( var (

1785
vendor/cloud.google.com/go/internal/.repo-metadata-full.json generated vendored
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File diff suppressed because it is too large Load diff

22
vendor/cloud.google.com/go/internal/README.md generated vendored
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@ -17,27 +17,13 @@ tools would then talk to pkg.go.dev or some other service to get the overall
list of packages and use the `.repo-metadata.json` files to get the additional list of packages and use the `.repo-metadata.json` files to get the additional
metadata required. For now, `.repo-metadata-full.json` includes everything. metadata required. For now, `.repo-metadata-full.json` includes everything.
## cloudbuild.yaml
To kick off a build locally run from the repo root:
```bash
gcloud builds submit --project=cloud-devrel-kokoro-resources --config=internal/cloudbuild.yaml
```
### Updating OwlBot SHA ### Updating OwlBot SHA
You may want to manually update the which version of the post processor will be You may want to manually update the which version of the post-processor will be
used -- to do this you need to update the SHA in the OwlBot lock file. Start by used -- to do this you need to update the SHA in the OwlBot lock file.
running the following commands:
```bash See the [postprocessor/README](postprocessor/README.md) for detailed
docker pull gcr.io/cloud-devrel-public-resources/owlbot-go:latest instructions.
docker inspect --format='{{index .RepoDigests 0}}' gcr.io/cloud-devrel-public-resources/owlbot-go:latest
```
This will give you a SHA. You can use this value to update the value in
`.github/.OwlBot.lock.yaml`.
*Note*: OwlBot will eventually open a pull request to update this value if it *Note*: OwlBot will eventually open a pull request to update this value if it
discovers a new version of the container. discovers a new version of the container.

25
vendor/cloud.google.com/go/internal/cloudbuild.yaml generated vendored
View file

@ -1,25 +0,0 @@
# Copyright 2023 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# note: /workspace is a special directory in the docker image where all the files in this folder
# get placed on your behalf
timeout: 7200s # 2 hours
steps:
- name: gcr.io/cloud-builders/docker
args: ['build', '-t', 'gcr.io/cloud-devrel-public-resources/owlbot-go', '-f', 'postprocessor/Dockerfile', '.']
dir: internal
images:
- gcr.io/cloud-devrel-public-resources/owlbot-go:latest

9
vendor/cloud.google.com/go/internal/retry.go generated vendored
View file

@ -20,7 +20,6 @@ import (
"time" "time"
gax "github.com/googleapis/gax-go/v2" gax "github.com/googleapis/gax-go/v2"
"google.golang.org/grpc/status"
) )
// Retry calls the supplied function f repeatedly according to the provided // Retry calls the supplied function f repeatedly according to the provided
@ -75,11 +74,3 @@ func (e wrappedCallErr) Unwrap() error {
func (e wrappedCallErr) Is(err error) bool { func (e wrappedCallErr) Is(err error) bool {
return e.ctxErr == err || e.wrappedErr == err return e.ctxErr == err || e.wrappedErr == err
} }
// GRPCStatus allows the wrapped error to be used with status.FromError.
func (e wrappedCallErr) GRPCStatus() *status.Status {
if s, ok := status.FromError(e.wrappedErr); ok {
return s
}
return nil
}

25
vendor/github.com/cenkalti/backoff/v4/.gitignore generated vendored Normal file
View file

@ -0,0 +1,25 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
# IDEs
.idea/

20
vendor/github.com/cenkalti/backoff/v4/LICENSE generated vendored Normal file
View file

@ -0,0 +1,20 @@
The MIT License (MIT)
Copyright (c) 2014 Cenk Altı
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

32
vendor/github.com/cenkalti/backoff/v4/README.md generated vendored Normal file
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@ -0,0 +1,32 @@
# Exponential Backoff [![GoDoc][godoc image]][godoc] [![Build Status][travis image]][travis] [![Coverage Status][coveralls image]][coveralls]
This is a Go port of the exponential backoff algorithm from [Google's HTTP Client Library for Java][google-http-java-client].
[Exponential backoff][exponential backoff wiki]
is an algorithm that uses feedback to multiplicatively decrease the rate of some process,
in order to gradually find an acceptable rate.
The retries exponentially increase and stop increasing when a certain threshold is met.
## Usage
Import path is `github.com/cenkalti/backoff/v4`. Please note the version part at the end.
Use https://pkg.go.dev/github.com/cenkalti/backoff/v4 to view the documentation.
## Contributing
* I would like to keep this library as small as possible.
* Please don't send a PR without opening an issue and discussing it first.
* If proposed change is not a common use case, I will probably not accept it.
[godoc]: https://pkg.go.dev/github.com/cenkalti/backoff/v4
[godoc image]: https://godoc.org/github.com/cenkalti/backoff?status.png
[travis]: https://travis-ci.org/cenkalti/backoff
[travis image]: https://travis-ci.org/cenkalti/backoff.png?branch=master
[coveralls]: https://coveralls.io/github/cenkalti/backoff?branch=master
[coveralls image]: https://coveralls.io/repos/github/cenkalti/backoff/badge.svg?branch=master
[google-http-java-client]: https://github.com/google/google-http-java-client/blob/da1aa993e90285ec18579f1553339b00e19b3ab5/google-http-client/src/main/java/com/google/api/client/util/ExponentialBackOff.java
[exponential backoff wiki]: http://en.wikipedia.org/wiki/Exponential_backoff
[advanced example]: https://pkg.go.dev/github.com/cenkalti/backoff/v4?tab=doc#pkg-examples

66
vendor/github.com/cenkalti/backoff/v4/backoff.go generated vendored Normal file
View file

@ -0,0 +1,66 @@
// Package backoff implements backoff algorithms for retrying operations.
//
// Use Retry function for retrying operations that may fail.
// If Retry does not meet your needs,
// copy/paste the function into your project and modify as you wish.
//
// There is also Ticker type similar to time.Ticker.
// You can use it if you need to work with channels.
//
// See Examples section below for usage examples.
package backoff
import "time"
// BackOff is a backoff policy for retrying an operation.
type BackOff interface {
// NextBackOff returns the duration to wait before retrying the operation,
// or backoff. Stop to indicate that no more retries should be made.
//
// Example usage:
//
// duration := backoff.NextBackOff();
// if (duration == backoff.Stop) {
// // Do not retry operation.
// } else {
// // Sleep for duration and retry operation.
// }
//
NextBackOff() time.Duration
// Reset to initial state.
Reset()
}
// Stop indicates that no more retries should be made for use in NextBackOff().
const Stop time.Duration = -1
// ZeroBackOff is a fixed backoff policy whose backoff time is always zero,
// meaning that the operation is retried immediately without waiting, indefinitely.
type ZeroBackOff struct{}
func (b *ZeroBackOff) Reset() {}
func (b *ZeroBackOff) NextBackOff() time.Duration { return 0 }
// StopBackOff is a fixed backoff policy that always returns backoff.Stop for
// NextBackOff(), meaning that the operation should never be retried.
type StopBackOff struct{}
func (b *StopBackOff) Reset() {}
func (b *StopBackOff) NextBackOff() time.Duration { return Stop }
// ConstantBackOff is a backoff policy that always returns the same backoff delay.
// This is in contrast to an exponential backoff policy,
// which returns a delay that grows longer as you call NextBackOff() over and over again.
type ConstantBackOff struct {
Interval time.Duration
}
func (b *ConstantBackOff) Reset() {}
func (b *ConstantBackOff) NextBackOff() time.Duration { return b.Interval }
func NewConstantBackOff(d time.Duration) *ConstantBackOff {
return &ConstantBackOff{Interval: d}
}

62
vendor/github.com/cenkalti/backoff/v4/context.go generated vendored Normal file
View file

@ -0,0 +1,62 @@
package backoff
import (
"context"
"time"
)
// BackOffContext is a backoff policy that stops retrying after the context
// is canceled.
type BackOffContext interface { // nolint: golint
BackOff
Context() context.Context
}
type backOffContext struct {
BackOff
ctx context.Context
}
// WithContext returns a BackOffContext with context ctx
//
// ctx must not be nil
func WithContext(b BackOff, ctx context.Context) BackOffContext { // nolint: golint
if ctx == nil {
panic("nil context")
}
if b, ok := b.(*backOffContext); ok {
return &backOffContext{
BackOff: b.BackOff,
ctx: ctx,
}
}
return &backOffContext{
BackOff: b,
ctx: ctx,
}
}
func getContext(b BackOff) context.Context {
if cb, ok := b.(BackOffContext); ok {
return cb.Context()
}
if tb, ok := b.(*backOffTries); ok {
return getContext(tb.delegate)
}
return context.Background()
}
func (b *backOffContext) Context() context.Context {
return b.ctx
}
func (b *backOffContext) NextBackOff() time.Duration {
select {
case <-b.ctx.Done():
return Stop
default:
return b.BackOff.NextBackOff()
}
}

161
vendor/github.com/cenkalti/backoff/v4/exponential.go generated vendored Normal file
View file

@ -0,0 +1,161 @@
package backoff
import (
"math/rand"
"time"
)
/*
ExponentialBackOff is a backoff implementation that increases the backoff
period for each retry attempt using a randomization function that grows exponentially.
NextBackOff() is calculated using the following formula:
randomized interval =
RetryInterval * (random value in range [1 - RandomizationFactor, 1 + RandomizationFactor])
In other words NextBackOff() will range between the randomization factor
percentage below and above the retry interval.
For example, given the following parameters:
RetryInterval = 2
RandomizationFactor = 0.5
Multiplier = 2
the actual backoff period used in the next retry attempt will range between 1 and 3 seconds,
multiplied by the exponential, that is, between 2 and 6 seconds.
Note: MaxInterval caps the RetryInterval and not the randomized interval.
If the time elapsed since an ExponentialBackOff instance is created goes past the
MaxElapsedTime, then the method NextBackOff() starts returning backoff.Stop.
The elapsed time can be reset by calling Reset().
Example: Given the following default arguments, for 10 tries the sequence will be,
and assuming we go over the MaxElapsedTime on the 10th try:
Request # RetryInterval (seconds) Randomized Interval (seconds)
1 0.5 [0.25, 0.75]
2 0.75 [0.375, 1.125]
3 1.125 [0.562, 1.687]
4 1.687 [0.8435, 2.53]
5 2.53 [1.265, 3.795]
6 3.795 [1.897, 5.692]
7 5.692 [2.846, 8.538]
8 8.538 [4.269, 12.807]
9 12.807 [6.403, 19.210]
10 19.210 backoff.Stop
Note: Implementation is not thread-safe.
*/
type ExponentialBackOff struct {
InitialInterval time.Duration
RandomizationFactor float64
Multiplier float64
MaxInterval time.Duration
// After MaxElapsedTime the ExponentialBackOff returns Stop.
// It never stops if MaxElapsedTime == 0.
MaxElapsedTime time.Duration
Stop time.Duration
Clock Clock
currentInterval time.Duration
startTime time.Time
}
// Clock is an interface that returns current time for BackOff.
type Clock interface {
Now() time.Time
}
// Default values for ExponentialBackOff.
const (
DefaultInitialInterval = 500 * time.Millisecond
DefaultRandomizationFactor = 0.5
DefaultMultiplier = 1.5
DefaultMaxInterval = 60 * time.Second
DefaultMaxElapsedTime = 15 * time.Minute
)
// NewExponentialBackOff creates an instance of ExponentialBackOff using default values.
func NewExponentialBackOff() *ExponentialBackOff {
b := &ExponentialBackOff{
InitialInterval: DefaultInitialInterval,
RandomizationFactor: DefaultRandomizationFactor,
Multiplier: DefaultMultiplier,
MaxInterval: DefaultMaxInterval,
MaxElapsedTime: DefaultMaxElapsedTime,
Stop: Stop,
Clock: SystemClock,
}
b.Reset()
return b
}
type systemClock struct{}
func (t systemClock) Now() time.Time {
return time.Now()
}
// SystemClock implements Clock interface that uses time.Now().
var SystemClock = systemClock{}
// Reset the interval back to the initial retry interval and restarts the timer.
// Reset must be called before using b.
func (b *ExponentialBackOff) Reset() {
b.currentInterval = b.InitialInterval
b.startTime = b.Clock.Now()
}
// NextBackOff calculates the next backoff interval using the formula:
// Randomized interval = RetryInterval * (1 ± RandomizationFactor)
func (b *ExponentialBackOff) NextBackOff() time.Duration {
// Make sure we have not gone over the maximum elapsed time.
elapsed := b.GetElapsedTime()
next := getRandomValueFromInterval(b.RandomizationFactor, rand.Float64(), b.currentInterval)
b.incrementCurrentInterval()
if b.MaxElapsedTime != 0 && elapsed+next > b.MaxElapsedTime {
return b.Stop
}
return next
}
// GetElapsedTime returns the elapsed time since an ExponentialBackOff instance
// is created and is reset when Reset() is called.
//
// The elapsed time is computed using time.Now().UnixNano(). It is
// safe to call even while the backoff policy is used by a running
// ticker.
func (b *ExponentialBackOff) GetElapsedTime() time.Duration {
return b.Clock.Now().Sub(b.startTime)
}
// Increments the current interval by multiplying it with the multiplier.
func (b *ExponentialBackOff) incrementCurrentInterval() {
// Check for overflow, if overflow is detected set the current interval to the max interval.
if float64(b.currentInterval) >= float64(b.MaxInterval)/b.Multiplier {
b.currentInterval = b.MaxInterval
} else {
b.currentInterval = time.Duration(float64(b.currentInterval) * b.Multiplier)
}
}
// Returns a random value from the following interval:
// [currentInterval - randomizationFactor * currentInterval, currentInterval + randomizationFactor * currentInterval].
func getRandomValueFromInterval(randomizationFactor, random float64, currentInterval time.Duration) time.Duration {
if randomizationFactor == 0 {
return currentInterval // make sure no randomness is used when randomizationFactor is 0.
}
var delta = randomizationFactor * float64(currentInterval)
var minInterval = float64(currentInterval) - delta
var maxInterval = float64(currentInterval) + delta
// Get a random value from the range [minInterval, maxInterval].
// The formula used below has a +1 because if the minInterval is 1 and the maxInterval is 3 then
// we want a 33% chance for selecting either 1, 2 or 3.
return time.Duration(minInterval + (random * (maxInterval - minInterval + 1)))
}

146
vendor/github.com/cenkalti/backoff/v4/retry.go generated vendored Normal file
View file

@ -0,0 +1,146 @@
package backoff
import (
"errors"
"time"
)
// An OperationWithData is executing by RetryWithData() or RetryNotifyWithData().
// The operation will be retried using a backoff policy if it returns an error.
type OperationWithData[T any] func() (T, error)
// An Operation is executing by Retry() or RetryNotify().
// The operation will be retried using a backoff policy if it returns an error.
type Operation func() error
func (o Operation) withEmptyData() OperationWithData[struct{}] {
return func() (struct{}, error) {
return struct{}{}, o()
}
}
// Notify is a notify-on-error function. It receives an operation error and
// backoff delay if the operation failed (with an error).
//
// NOTE that if the backoff policy stated to stop retrying,
// the notify function isn't called.
type Notify func(error, time.Duration)
// Retry the operation o until it does not return error or BackOff stops.
// o is guaranteed to be run at least once.
//
// If o returns a *PermanentError, the operation is not retried, and the
// wrapped error is returned.
//
// Retry sleeps the goroutine for the duration returned by BackOff after a
// failed operation returns.
func Retry(o Operation, b BackOff) error {
return RetryNotify(o, b, nil)
}
// RetryWithData is like Retry but returns data in the response too.
func RetryWithData[T any](o OperationWithData[T], b BackOff) (T, error) {
return RetryNotifyWithData(o, b, nil)
}
// RetryNotify calls notify function with the error and wait duration
// for each failed attempt before sleep.
func RetryNotify(operation Operation, b BackOff, notify Notify) error {
return RetryNotifyWithTimer(operation, b, notify, nil)
}
// RetryNotifyWithData is like RetryNotify but returns data in the response too.
func RetryNotifyWithData[T any](operation OperationWithData[T], b BackOff, notify Notify) (T, error) {
return doRetryNotify(operation, b, notify, nil)
}
// RetryNotifyWithTimer calls notify function with the error and wait duration using the given Timer
// for each failed attempt before sleep.
// A default timer that uses system timer is used when nil is passed.
func RetryNotifyWithTimer(operation Operation, b BackOff, notify Notify, t Timer) error {
_, err := doRetryNotify(operation.withEmptyData(), b, notify, t)
return err
}
// RetryNotifyWithTimerAndData is like RetryNotifyWithTimer but returns data in the response too.
func RetryNotifyWithTimerAndData[T any](operation OperationWithData[T], b BackOff, notify Notify, t Timer) (T, error) {
return doRetryNotify(operation, b, notify, t)
}
func doRetryNotify[T any](operation OperationWithData[T], b BackOff, notify Notify, t Timer) (T, error) {
var (
err error
next time.Duration
res T
)
if t == nil {
t = &defaultTimer{}
}
defer func() {
t.Stop()
}()
ctx := getContext(b)
b.Reset()
for {
res, err = operation()
if err == nil {
return res, nil
}
var permanent *PermanentError
if errors.As(err, &permanent) {
return res, permanent.Err
}
if next = b.NextBackOff(); next == Stop {
if cerr := ctx.Err(); cerr != nil {
return res, cerr
}
return res, err
}
if notify != nil {
notify(err, next)
}
t.Start(next)
select {
case <-ctx.Done():
return res, ctx.Err()
case <-t.C():
}
}
}
// PermanentError signals that the operation should not be retried.
type PermanentError struct {
Err error
}
func (e *PermanentError) Error() string {
return e.Err.Error()
}
func (e *PermanentError) Unwrap() error {
return e.Err
}
func (e *PermanentError) Is(target error) bool {
_, ok := target.(*PermanentError)
return ok
}
// Permanent wraps the given err in a *PermanentError.
func Permanent(err error) error {
if err == nil {
return nil
}
return &PermanentError{
Err: err,
}
}

97
vendor/github.com/cenkalti/backoff/v4/ticker.go generated vendored Normal file
View file

@ -0,0 +1,97 @@
package backoff
import (
"context"
"sync"
"time"
)
// Ticker holds a channel that delivers `ticks' of a clock at times reported by a BackOff.
//
// Ticks will continue to arrive when the previous operation is still running,
// so operations that take a while to fail could run in quick succession.
type Ticker struct {
C <-chan time.Time
c chan time.Time
b BackOff
ctx context.Context
timer Timer
stop chan struct{}
stopOnce sync.Once
}
// NewTicker returns a new Ticker containing a channel that will send
// the time at times specified by the BackOff argument. Ticker is
// guaranteed to tick at least once. The channel is closed when Stop
// method is called or BackOff stops. It is not safe to manipulate the
// provided backoff policy (notably calling NextBackOff or Reset)
// while the ticker is running.
func NewTicker(b BackOff) *Ticker {
return NewTickerWithTimer(b, &defaultTimer{})
}
// NewTickerWithTimer returns a new Ticker with a custom timer.
// A default timer that uses system timer is used when nil is passed.
func NewTickerWithTimer(b BackOff, timer Timer) *Ticker {
if timer == nil {
timer = &defaultTimer{}
}
c := make(chan time.Time)
t := &Ticker{
C: c,
c: c,
b: b,
ctx: getContext(b),
timer: timer,
stop: make(chan struct{}),
}
t.b.Reset()
go t.run()
return t
}
// Stop turns off a ticker. After Stop, no more ticks will be sent.
func (t *Ticker) Stop() {
t.stopOnce.Do(func() { close(t.stop) })
}
func (t *Ticker) run() {
c := t.c
defer close(c)
// Ticker is guaranteed to tick at least once.
afterC := t.send(time.Now())
for {
if afterC == nil {
return
}
select {
case tick := <-afterC:
afterC = t.send(tick)
case <-t.stop:
t.c = nil // Prevent future ticks from being sent to the channel.
return
case <-t.ctx.Done():
return
}
}
}
func (t *Ticker) send(tick time.Time) <-chan time.Time {
select {
case t.c <- tick:
case <-t.stop:
return nil
}
next := t.b.NextBackOff()
if next == Stop {
t.Stop()
return nil
}
t.timer.Start(next)
return t.timer.C()
}

35
vendor/github.com/cenkalti/backoff/v4/timer.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
package backoff
import "time"
type Timer interface {
Start(duration time.Duration)
Stop()
C() <-chan time.Time
}
// defaultTimer implements Timer interface using time.Timer
type defaultTimer struct {
timer *time.Timer
}
// C returns the timers channel which receives the current time when the timer fires.
func (t *defaultTimer) C() <-chan time.Time {
return t.timer.C
}
// Start starts the timer to fire after the given duration
func (t *defaultTimer) Start(duration time.Duration) {
if t.timer == nil {
t.timer = time.NewTimer(duration)
} else {
t.timer.Reset(duration)
}
}
// Stop is called when the timer is not used anymore and resources may be freed.
func (t *defaultTimer) Stop() {
if t.timer != nil {
t.timer.Stop()
}
}

38
vendor/github.com/cenkalti/backoff/v4/tries.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
package backoff
import "time"
/*
WithMaxRetries creates a wrapper around another BackOff, which will
return Stop if NextBackOff() has been called too many times since
the last time Reset() was called
Note: Implementation is not thread-safe.
*/
func WithMaxRetries(b BackOff, max uint64) BackOff {
return &backOffTries{delegate: b, maxTries: max}
}
type backOffTries struct {
delegate BackOff
maxTries uint64
numTries uint64
}
func (b *backOffTries) NextBackOff() time.Duration {
if b.maxTries == 0 {
return Stop
}
if b.maxTries > 0 {
if b.maxTries <= b.numTries {
return Stop
}
b.numTries++
}
return b.delegate.NextBackOff()
}
func (b *backOffTries) Reset() {
b.numTries = 0
b.delegate.Reset()
}

6
vendor/github.com/felixge/httpsnoop/.travis.yml generated vendored
View file

@ -1,6 +0,0 @@
language: go
go:
- 1.6
- 1.7
- 1.8

2
vendor/github.com/felixge/httpsnoop/Makefile generated vendored
View file

@ -1,7 +1,7 @@
.PHONY: ci generate clean .PHONY: ci generate clean
ci: clean generate ci: clean generate
go test -v ./... go test -race -v ./...
generate: generate:
go generate . go generate .

7
vendor/github.com/felixge/httpsnoop/README.md generated vendored
View file

@ -7,8 +7,8 @@ http.Handlers.
Doing this requires non-trivial wrapping of the http.ResponseWriter interface, Doing this requires non-trivial wrapping of the http.ResponseWriter interface,
which is also exposed for users interested in a more low-level API. which is also exposed for users interested in a more low-level API.
[![GoDoc](https://godoc.org/github.com/felixge/httpsnoop?status.svg)](https://godoc.org/github.com/felixge/httpsnoop) [![Go Reference](https://pkg.go.dev/badge/github.com/felixge/httpsnoop.svg)](https://pkg.go.dev/github.com/felixge/httpsnoop)
[![Build Status](https://travis-ci.org/felixge/httpsnoop.svg?branch=master)](https://travis-ci.org/felixge/httpsnoop) [![Build Status](https://github.com/felixge/httpsnoop/actions/workflows/main.yaml/badge.svg)](https://github.com/felixge/httpsnoop/actions/workflows/main.yaml)
## Usage Example ## Usage Example
@ -65,7 +65,8 @@ being called, or called more than once, as well as concurrent calls to
Unfortunately this package is not perfect either. It's possible that it is Unfortunately this package is not perfect either. It's possible that it is
still missing some interfaces provided by the go core (let me know if you find still missing some interfaces provided by the go core (let me know if you find
one), and it won't work for applications adding their own interfaces into the one), and it won't work for applications adding their own interfaces into the
mix. mix. You can however use `httpsnoop.Unwrap(w)` to access the underlying
`http.ResponseWriter` and type-assert the result to its other interfaces.
However, hopefully the explanation above has sufficiently scared you of rolling However, hopefully the explanation above has sufficiently scared you of rolling
your own solution to this problem. httpsnoop may still break your application, your own solution to this problem. httpsnoop may still break your application,

26
vendor/github.com/felixge/httpsnoop/capture_metrics.go generated vendored
View file

@ -3,7 +3,6 @@ package httpsnoop
import ( import (
"io" "io"
"net/http" "net/http"
"sync"
"time" "time"
) )
@ -36,18 +35,24 @@ func CaptureMetrics(hnd http.Handler, w http.ResponseWriter, r *http.Request) Me
// sugar on top of this func), but is a more usable interface if your // sugar on top of this func), but is a more usable interface if your
// application doesn't use the Go http.Handler interface. // application doesn't use the Go http.Handler interface.
func CaptureMetricsFn(w http.ResponseWriter, fn func(http.ResponseWriter)) Metrics { func CaptureMetricsFn(w http.ResponseWriter, fn func(http.ResponseWriter)) Metrics {
m := Metrics{Code: http.StatusOK}
m.CaptureMetrics(w, fn)
return m
}
// CaptureMetrics wraps w and calls fn with the wrapped w and updates
// Metrics m with the resulting metrics. This is similar to CaptureMetricsFn,
// but allows one to customize starting Metrics object.
func (m *Metrics) CaptureMetrics(w http.ResponseWriter, fn func(http.ResponseWriter)) {
var ( var (
start = time.Now() start = time.Now()
m = Metrics{Code: http.StatusOK}
headerWritten bool headerWritten bool
lock sync.Mutex
hooks = Hooks{ hooks = Hooks{
WriteHeader: func(next WriteHeaderFunc) WriteHeaderFunc { WriteHeader: func(next WriteHeaderFunc) WriteHeaderFunc {
return func(code int) { return func(code int) {
next(code) next(code)
lock.Lock()
defer lock.Unlock() if !(code >= 100 && code <= 199) && !headerWritten {
if !headerWritten {
m.Code = code m.Code = code
headerWritten = true headerWritten = true
} }
@ -57,8 +62,7 @@ func CaptureMetricsFn(w http.ResponseWriter, fn func(http.ResponseWriter)) Metri
Write: func(next WriteFunc) WriteFunc { Write: func(next WriteFunc) WriteFunc {
return func(p []byte) (int, error) { return func(p []byte) (int, error) {
n, err := next(p) n, err := next(p)
lock.Lock()
defer lock.Unlock()
m.Written += int64(n) m.Written += int64(n)
headerWritten = true headerWritten = true
return n, err return n, err
@ -68,8 +72,7 @@ func CaptureMetricsFn(w http.ResponseWriter, fn func(http.ResponseWriter)) Metri
ReadFrom: func(next ReadFromFunc) ReadFromFunc { ReadFrom: func(next ReadFromFunc) ReadFromFunc {
return func(src io.Reader) (int64, error) { return func(src io.Reader) (int64, error) {
n, err := next(src) n, err := next(src)
lock.Lock()
defer lock.Unlock()
headerWritten = true headerWritten = true
m.Written += n m.Written += n
return n, err return n, err
@ -79,6 +82,5 @@ func CaptureMetricsFn(w http.ResponseWriter, fn func(http.ResponseWriter)) Metri
) )
fn(Wrap(w, hooks)) fn(Wrap(w, hooks))
m.Duration = time.Since(start) m.Duration += time.Since(start)
return m
} }

339
vendor/github.com/felixge/httpsnoop/wrap_generated_gteq_1.8.go generated vendored
View file

@ -1,5 +1,5 @@
// +build go1.8 // +build go1.8
// Code generated by "httpsnoop/codegen"; DO NOT EDIT // Code generated by "httpsnoop/codegen"; DO NOT EDIT.
package httpsnoop package httpsnoop
@ -74,243 +74,275 @@ func Wrap(w http.ResponseWriter, hooks Hooks) http.ResponseWriter {
// combination 1/32 // combination 1/32
case !i0 && !i1 && !i2 && !i3 && !i4: case !i0 && !i1 && !i2 && !i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
}{rw} }{rw, rw}
// combination 2/32 // combination 2/32
case !i0 && !i1 && !i2 && !i3 && i4: case !i0 && !i1 && !i2 && !i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Pusher http.Pusher
}{rw, rw} }{rw, rw, rw}
// combination 3/32 // combination 3/32
case !i0 && !i1 && !i2 && i3 && !i4: case !i0 && !i1 && !i2 && i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
io.ReaderFrom io.ReaderFrom
}{rw, rw} }{rw, rw, rw}
// combination 4/32 // combination 4/32
case !i0 && !i1 && !i2 && i3 && i4: case !i0 && !i1 && !i2 && i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
io.ReaderFrom io.ReaderFrom
http.Pusher http.Pusher
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 5/32 // combination 5/32
case !i0 && !i1 && i2 && !i3 && !i4: case !i0 && !i1 && i2 && !i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Hijacker http.Hijacker
}{rw, rw} }{rw, rw, rw}
// combination 6/32 // combination 6/32
case !i0 && !i1 && i2 && !i3 && i4: case !i0 && !i1 && i2 && !i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Hijacker http.Hijacker
http.Pusher http.Pusher
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 7/32 // combination 7/32
case !i0 && !i1 && i2 && i3 && !i4: case !i0 && !i1 && i2 && i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Hijacker http.Hijacker
io.ReaderFrom io.ReaderFrom
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 8/32 // combination 8/32
case !i0 && !i1 && i2 && i3 && i4: case !i0 && !i1 && i2 && i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Hijacker http.Hijacker
io.ReaderFrom io.ReaderFrom
http.Pusher http.Pusher
}{rw, rw, rw, rw} }{rw, rw, rw, rw, rw}
// combination 9/32 // combination 9/32
case !i0 && i1 && !i2 && !i3 && !i4: case !i0 && i1 && !i2 && !i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
}{rw, rw} }{rw, rw, rw}
// combination 10/32 // combination 10/32
case !i0 && i1 && !i2 && !i3 && i4: case !i0 && i1 && !i2 && !i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Pusher http.Pusher
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 11/32 // combination 11/32
case !i0 && i1 && !i2 && i3 && !i4: case !i0 && i1 && !i2 && i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
io.ReaderFrom io.ReaderFrom
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 12/32 // combination 12/32
case !i0 && i1 && !i2 && i3 && i4: case !i0 && i1 && !i2 && i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
io.ReaderFrom io.ReaderFrom
http.Pusher http.Pusher
}{rw, rw, rw, rw} }{rw, rw, rw, rw, rw}
// combination 13/32 // combination 13/32
case !i0 && i1 && i2 && !i3 && !i4: case !i0 && i1 && i2 && !i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Hijacker http.Hijacker
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 14/32 // combination 14/32
case !i0 && i1 && i2 && !i3 && i4: case !i0 && i1 && i2 && !i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Hijacker http.Hijacker
http.Pusher http.Pusher
}{rw, rw, rw, rw} }{rw, rw, rw, rw, rw}
// combination 15/32 // combination 15/32
case !i0 && i1 && i2 && i3 && !i4: case !i0 && i1 && i2 && i3 && !i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Hijacker http.Hijacker
io.ReaderFrom io.ReaderFrom
}{rw, rw, rw, rw} }{rw, rw, rw, rw, rw}
// combination 16/32 // combination 16/32
case !i0 && i1 && i2 && i3 && i4: case !i0 && i1 && i2 && i3 && i4:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Hijacker http.Hijacker
io.ReaderFrom io.ReaderFrom
http.Pusher http.Pusher
}{rw, rw, rw, rw, rw}
// combination 17/32
case i0 && !i1 && !i2 && !i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
}{rw, rw}
// combination 18/32
case i0 && !i1 && !i2 && !i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.Pusher
}{rw, rw, rw}
// combination 19/32
case i0 && !i1 && !i2 && i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
io.ReaderFrom
}{rw, rw, rw}
// combination 20/32
case i0 && !i1 && !i2 && i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw}
// combination 21/32
case i0 && !i1 && i2 && !i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
http.Hijacker
}{rw, rw, rw}
// combination 22/32
case i0 && !i1 && i2 && !i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.Hijacker
http.Pusher
}{rw, rw, rw, rw}
// combination 23/32
case i0 && !i1 && i2 && i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw}
// combination 24/32
case i0 && !i1 && i2 && i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.Hijacker
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw}
// combination 25/32
case i0 && i1 && !i2 && !i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
}{rw, rw, rw}
// combination 26/32
case i0 && i1 && !i2 && !i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Pusher
}{rw, rw, rw, rw}
// combination 27/32
case i0 && i1 && !i2 && i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
io.ReaderFrom
}{rw, rw, rw, rw}
// combination 28/32
case i0 && i1 && !i2 && i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw}
// combination 29/32
case i0 && i1 && i2 && !i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
}{rw, rw, rw, rw}
// combination 30/32
case i0 && i1 && i2 && !i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
http.Pusher
}{rw, rw, rw, rw, rw}
// combination 31/32
case i0 && i1 && i2 && i3 && !i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw, rw}
// combination 32/32
case i0 && i1 && i2 && i3 && i4:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw, rw} }{rw, rw, rw, rw, rw, rw}
// combination 17/32
case i0 && !i1 && !i2 && !i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
}{rw, rw, rw}
// combination 18/32
case i0 && !i1 && !i2 && !i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Pusher
}{rw, rw, rw, rw}
// combination 19/32
case i0 && !i1 && !i2 && i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
io.ReaderFrom
}{rw, rw, rw, rw}
// combination 20/32
case i0 && !i1 && !i2 && i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw}
// combination 21/32
case i0 && !i1 && i2 && !i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Hijacker
}{rw, rw, rw, rw}
// combination 22/32
case i0 && !i1 && i2 && !i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Hijacker
http.Pusher
}{rw, rw, rw, rw, rw}
// combination 23/32
case i0 && !i1 && i2 && i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw, rw}
// combination 24/32
case i0 && !i1 && i2 && i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Hijacker
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw, rw}
// combination 25/32
case i0 && i1 && !i2 && !i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
}{rw, rw, rw, rw}
// combination 26/32
case i0 && i1 && !i2 && !i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Pusher
}{rw, rw, rw, rw, rw}
// combination 27/32
case i0 && i1 && !i2 && i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
io.ReaderFrom
}{rw, rw, rw, rw, rw}
// combination 28/32
case i0 && i1 && !i2 && i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw, rw}
// combination 29/32
case i0 && i1 && i2 && !i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
}{rw, rw, rw, rw, rw}
// combination 30/32
case i0 && i1 && i2 && !i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
http.Pusher
}{rw, rw, rw, rw, rw, rw}
// combination 31/32
case i0 && i1 && i2 && i3 && !i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw, rw, rw}
// combination 32/32
case i0 && i1 && i2 && i3 && i4:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
io.ReaderFrom
http.Pusher
}{rw, rw, rw, rw, rw, rw, rw}
} }
panic("unreachable") panic("unreachable")
} }
@ -320,6 +352,10 @@ type rw struct {
h Hooks h Hooks
} }
func (w *rw) Unwrap() http.ResponseWriter {
return w.w
}
func (w *rw) Header() http.Header { func (w *rw) Header() http.Header {
f := w.w.(http.ResponseWriter).Header f := w.w.(http.ResponseWriter).Header
if w.h.Header != nil { if w.h.Header != nil {
@ -383,3 +419,18 @@ func (w *rw) Push(target string, opts *http.PushOptions) error {
} }
return f(target, opts) return f(target, opts)
} }
type Unwrapper interface {
Unwrap() http.ResponseWriter
}
// Unwrap returns the underlying http.ResponseWriter from within zero or more
// layers of httpsnoop wrappers.
func Unwrap(w http.ResponseWriter) http.ResponseWriter {
if rw, ok := w.(Unwrapper); ok {
// recurse until rw.Unwrap() returns a non-Unwrapper
return Unwrap(rw.Unwrap())
} else {
return w
}
}

171
vendor/github.com/felixge/httpsnoop/wrap_generated_lt_1.8.go generated vendored
View file

@ -1,5 +1,5 @@
// +build !go1.8 // +build !go1.8
// Code generated by "httpsnoop/codegen"; DO NOT EDIT // Code generated by "httpsnoop/codegen"; DO NOT EDIT.
package httpsnoop package httpsnoop
@ -68,115 +68,131 @@ func Wrap(w http.ResponseWriter, hooks Hooks) http.ResponseWriter {
// combination 1/16 // combination 1/16
case !i0 && !i1 && !i2 && !i3: case !i0 && !i1 && !i2 && !i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
}{rw} }{rw, rw}
// combination 2/16 // combination 2/16
case !i0 && !i1 && !i2 && i3: case !i0 && !i1 && !i2 && i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
io.ReaderFrom io.ReaderFrom
}{rw, rw} }{rw, rw, rw}
// combination 3/16 // combination 3/16
case !i0 && !i1 && i2 && !i3: case !i0 && !i1 && i2 && !i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Hijacker http.Hijacker
}{rw, rw} }{rw, rw, rw}
// combination 4/16 // combination 4/16
case !i0 && !i1 && i2 && i3: case !i0 && !i1 && i2 && i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.Hijacker http.Hijacker
io.ReaderFrom io.ReaderFrom
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 5/16 // combination 5/16
case !i0 && i1 && !i2 && !i3: case !i0 && i1 && !i2 && !i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
}{rw, rw} }{rw, rw, rw}
// combination 6/16 // combination 6/16
case !i0 && i1 && !i2 && i3: case !i0 && i1 && !i2 && i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
io.ReaderFrom io.ReaderFrom
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 7/16 // combination 7/16
case !i0 && i1 && i2 && !i3: case !i0 && i1 && i2 && !i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Hijacker http.Hijacker
}{rw, rw, rw} }{rw, rw, rw, rw}
// combination 8/16 // combination 8/16
case !i0 && i1 && i2 && i3: case !i0 && i1 && i2 && i3:
return struct { return struct {
Unwrapper
http.ResponseWriter http.ResponseWriter
http.CloseNotifier http.CloseNotifier
http.Hijacker http.Hijacker
io.ReaderFrom io.ReaderFrom
}{rw, rw, rw, rw}
// combination 9/16
case i0 && !i1 && !i2 && !i3:
return struct {
http.ResponseWriter
http.Flusher
}{rw, rw}
// combination 10/16
case i0 && !i1 && !i2 && i3:
return struct {
http.ResponseWriter
http.Flusher
io.ReaderFrom
}{rw, rw, rw}
// combination 11/16
case i0 && !i1 && i2 && !i3:
return struct {
http.ResponseWriter
http.Flusher
http.Hijacker
}{rw, rw, rw}
// combination 12/16
case i0 && !i1 && i2 && i3:
return struct {
http.ResponseWriter
http.Flusher
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw}
// combination 13/16
case i0 && i1 && !i2 && !i3:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
}{rw, rw, rw}
// combination 14/16
case i0 && i1 && !i2 && i3:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
io.ReaderFrom
}{rw, rw, rw, rw}
// combination 15/16
case i0 && i1 && i2 && !i3:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
}{rw, rw, rw, rw}
// combination 16/16
case i0 && i1 && i2 && i3:
return struct {
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw, rw} }{rw, rw, rw, rw, rw}
// combination 9/16
case i0 && !i1 && !i2 && !i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
}{rw, rw, rw}
// combination 10/16
case i0 && !i1 && !i2 && i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
io.ReaderFrom
}{rw, rw, rw, rw}
// combination 11/16
case i0 && !i1 && i2 && !i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Hijacker
}{rw, rw, rw, rw}
// combination 12/16
case i0 && !i1 && i2 && i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw, rw}
// combination 13/16
case i0 && i1 && !i2 && !i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
}{rw, rw, rw, rw}
// combination 14/16
case i0 && i1 && !i2 && i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
io.ReaderFrom
}{rw, rw, rw, rw, rw}
// combination 15/16
case i0 && i1 && i2 && !i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
}{rw, rw, rw, rw, rw}
// combination 16/16
case i0 && i1 && i2 && i3:
return struct {
Unwrapper
http.ResponseWriter
http.Flusher
http.CloseNotifier
http.Hijacker
io.ReaderFrom
}{rw, rw, rw, rw, rw, rw}
} }
panic("unreachable") panic("unreachable")
} }
@ -186,6 +202,10 @@ type rw struct {
h Hooks h Hooks
} }
func (w *rw) Unwrap() http.ResponseWriter {
return w.w
}
func (w *rw) Header() http.Header { func (w *rw) Header() http.Header {
f := w.w.(http.ResponseWriter).Header f := w.w.(http.ResponseWriter).Header
if w.h.Header != nil { if w.h.Header != nil {
@ -241,3 +261,18 @@ func (w *rw) ReadFrom(src io.Reader) (int64, error) {
} }
return f(src) return f(src)
} }
type Unwrapper interface {
Unwrap() http.ResponseWriter
}
// Unwrap returns the underlying http.ResponseWriter from within zero or more
// layers of httpsnoop wrappers.
func Unwrap(w http.ResponseWriter) http.ResponseWriter {
if rw, ok := w.(Unwrapper); ok {
// recurse until rw.Unwrap() returns a non-Unwrapper
return Unwrap(rw.Unwrap())
} else {
return w
}
}

113
vendor/github.com/go-logr/logr/README.md generated vendored
View file

@ -1,6 +1,7 @@
# A minimal logging API for Go # A minimal logging API for Go
[![Go Reference](https://pkg.go.dev/badge/github.com/go-logr/logr.svg)](https://pkg.go.dev/github.com/go-logr/logr) [![Go Reference](https://pkg.go.dev/badge/github.com/go-logr/logr.svg)](https://pkg.go.dev/github.com/go-logr/logr)
[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/go-logr/logr/badge)](https://securityscorecards.dev/viewer/?platform=github.com&org=go-logr&repo=logr)
logr offers an(other) opinion on how Go programs and libraries can do logging logr offers an(other) opinion on how Go programs and libraries can do logging
without becoming coupled to a particular logging implementation. This is not without becoming coupled to a particular logging implementation. This is not
@ -73,6 +74,29 @@ received:
If the Go standard library had defined an interface for logging, this project If the Go standard library had defined an interface for logging, this project
probably would not be needed. Alas, here we are. probably would not be needed. Alas, here we are.
When the Go developers started developing such an interface with
[slog](https://github.com/golang/go/issues/56345), they adopted some of the
logr design but also left out some parts and changed others:
| Feature | logr | slog |
|---------|------|------|
| High-level API | `Logger` (passed by value) | `Logger` (passed by [pointer](https://github.com/golang/go/issues/59126)) |
| Low-level API | `LogSink` | `Handler` |
| Stack unwinding | done by `LogSink` | done by `Logger` |
| Skipping helper functions | `WithCallDepth`, `WithCallStackHelper` | [not supported by Logger](https://github.com/golang/go/issues/59145) |
| Generating a value for logging on demand | `Marshaler` | `LogValuer` |
| Log levels | >= 0, higher meaning "less important" | positive and negative, with 0 for "info" and higher meaning "more important" |
| Error log entries | always logged, don't have a verbosity level | normal log entries with level >= `LevelError` |
| Passing logger via context | `NewContext`, `FromContext` | no API |
| Adding a name to a logger | `WithName` | no API |
| Modify verbosity of log entries in a call chain | `V` | no API |
| Grouping of key/value pairs | not supported | `WithGroup`, `GroupValue` |
The high-level slog API is explicitly meant to be one of many different APIs
that can be layered on top of a shared `slog.Handler`. logr is one such
alternative API, with [interoperability](#slog-interoperability) provided by the [`slogr`](slogr)
package.
### Inspiration ### Inspiration
Before you consider this package, please read [this blog post by the Before you consider this package, please read [this blog post by the
@ -118,6 +142,91 @@ There are implementations for the following logging libraries:
- **github.com/go-kit/log**: [gokitlogr](https://github.com/tonglil/gokitlogr) (also compatible with github.com/go-kit/kit/log since v0.12.0) - **github.com/go-kit/log**: [gokitlogr](https://github.com/tonglil/gokitlogr) (also compatible with github.com/go-kit/kit/log since v0.12.0)
- **bytes.Buffer** (writing to a buffer): [bufrlogr](https://github.com/tonglil/buflogr) (useful for ensuring values were logged, like during testing) - **bytes.Buffer** (writing to a buffer): [bufrlogr](https://github.com/tonglil/buflogr) (useful for ensuring values were logged, like during testing)
## slog interoperability
Interoperability goes both ways, using the `logr.Logger` API with a `slog.Handler`
and using the `slog.Logger` API with a `logr.LogSink`. [slogr](./slogr) provides `NewLogr` and
`NewSlogHandler` API calls to convert between a `logr.Logger` and a `slog.Handler`.
As usual, `slog.New` can be used to wrap such a `slog.Handler` in the high-level
slog API. `slogr` itself leaves that to the caller.
## Using a `logr.Sink` as backend for slog
Ideally, a logr sink implementation should support both logr and slog by
implementing both the normal logr interface(s) and `slogr.SlogSink`. Because
of a conflict in the parameters of the common `Enabled` method, it is [not
possible to implement both slog.Handler and logr.Sink in the same
type](https://github.com/golang/go/issues/59110).
If both are supported, log calls can go from the high-level APIs to the backend
without the need to convert parameters. `NewLogr` and `NewSlogHandler` can
convert back and forth without adding additional wrappers, with one exception:
when `Logger.V` was used to adjust the verbosity for a `slog.Handler`, then
`NewSlogHandler` has to use a wrapper which adjusts the verbosity for future
log calls.
Such an implementation should also support values that implement specific
interfaces from both packages for logging (`logr.Marshaler`, `slog.LogValuer`,
`slog.GroupValue`). logr does not convert those.
Not supporting slog has several drawbacks:
- Recording source code locations works correctly if the handler gets called
through `slog.Logger`, but may be wrong in other cases. That's because a
`logr.Sink` does its own stack unwinding instead of using the program counter
provided by the high-level API.
- slog levels <= 0 can be mapped to logr levels by negating the level without a
loss of information. But all slog levels > 0 (e.g. `slog.LevelWarning` as
used by `slog.Logger.Warn`) must be mapped to 0 before calling the sink
because logr does not support "more important than info" levels.
- The slog group concept is supported by prefixing each key in a key/value
pair with the group names, separated by a dot. For structured output like
JSON it would be better to group the key/value pairs inside an object.
- Special slog values and interfaces don't work as expected.
- The overhead is likely to be higher.
These drawbacks are severe enough that applications using a mixture of slog and
logr should switch to a different backend.
## Using a `slog.Handler` as backend for logr
Using a plain `slog.Handler` without support for logr works better than the
other direction:
- All logr verbosity levels can be mapped 1:1 to their corresponding slog level
by negating them.
- Stack unwinding is done by the `slogr.SlogSink` and the resulting program
counter is passed to the `slog.Handler`.
- Names added via `Logger.WithName` are gathered and recorded in an additional
attribute with `logger` as key and the names separated by slash as value.
- `Logger.Error` is turned into a log record with `slog.LevelError` as level
and an additional attribute with `err` as key, if an error was provided.
The main drawback is that `logr.Marshaler` will not be supported. Types should
ideally support both `logr.Marshaler` and `slog.Valuer`. If compatibility
with logr implementations without slog support is not important, then
`slog.Valuer` is sufficient.
## Context support for slog
Storing a logger in a `context.Context` is not supported by
slog. `logr.NewContext` and `logr.FromContext` can be used with slog like this
to fill this gap:
func HandlerFromContext(ctx context.Context) slog.Handler {
logger, err := logr.FromContext(ctx)
if err == nil {
return slogr.NewSlogHandler(logger)
}
return slog.Default().Handler()
}
func ContextWithHandler(ctx context.Context, handler slog.Handler) context.Context {
return logr.NewContext(ctx, slogr.NewLogr(handler))
}
The downside is that storing and retrieving a `slog.Handler` needs more
allocations compared to using a `logr.Logger`. Therefore the recommendation is
to use the `logr.Logger` API in code which uses contextual logging.
## FAQ ## FAQ
### Conceptual ### Conceptual
@ -241,7 +350,9 @@ Otherwise, you can start out with `0` as "you always want to see this",
Then gradually choose levels in between as you need them, working your way Then gradually choose levels in between as you need them, working your way
down from 10 (for debug and trace style logs) and up from 1 (for chattier down from 10 (for debug and trace style logs) and up from 1 (for chattier
info-type logs.) info-type logs). For reference, slog pre-defines -4 for debug logs
(corresponds to 4 in logr), which matches what is
[recommended for Kubernetes](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/logging.md#what-method-to-use).
#### How do I choose my keys? #### How do I choose my keys?

18
vendor/github.com/go-logr/logr/SECURITY.md generated vendored Normal file
View file

@ -0,0 +1,18 @@
# Security Policy
If you have discovered a security vulnerability in this project, please report it
privately. **Do not disclose it as a public issue.** This gives us time to work with you
to fix the issue before public exposure, reducing the chance that the exploit will be
used before a patch is released.
You may submit the report in the following ways:
- send an email to go-logr-security@googlegroups.com
- send us a [private vulnerability report](https://github.com/go-logr/logr/security/advisories/new)
Please provide the following information in your report:
- A description of the vulnerability and its impact
- How to reproduce the issue
We ask that you give us 90 days to work on a fix before public exposure.

46
vendor/github.com/go-logr/logr/funcr/funcr.go generated vendored
View file

@ -116,17 +116,17 @@ type Options struct {
// Equivalent hooks are offered for key-value pairs saved via // Equivalent hooks are offered for key-value pairs saved via
// logr.Logger.WithValues or Formatter.AddValues (see RenderValuesHook) and // logr.Logger.WithValues or Formatter.AddValues (see RenderValuesHook) and
// for user-provided pairs (see RenderArgsHook). // for user-provided pairs (see RenderArgsHook).
RenderBuiltinsHook func(kvList []interface{}) []interface{} RenderBuiltinsHook func(kvList []any) []any
// RenderValuesHook is the same as RenderBuiltinsHook, except that it is // RenderValuesHook is the same as RenderBuiltinsHook, except that it is
// only called for key-value pairs saved via logr.Logger.WithValues. See // only called for key-value pairs saved via logr.Logger.WithValues. See
// RenderBuiltinsHook for more details. // RenderBuiltinsHook for more details.
RenderValuesHook func(kvList []interface{}) []interface{} RenderValuesHook func(kvList []any) []any
// RenderArgsHook is the same as RenderBuiltinsHook, except that it is only // RenderArgsHook is the same as RenderBuiltinsHook, except that it is only
// called for key-value pairs passed directly to Info and Error. See // called for key-value pairs passed directly to Info and Error. See
// RenderBuiltinsHook for more details. // RenderBuiltinsHook for more details.
RenderArgsHook func(kvList []interface{}) []interface{} RenderArgsHook func(kvList []any) []any
// MaxLogDepth tells funcr how many levels of nested fields (e.g. a struct // MaxLogDepth tells funcr how many levels of nested fields (e.g. a struct
// that contains a struct, etc.) it may log. Every time it finds a struct, // that contains a struct, etc.) it may log. Every time it finds a struct,
@ -163,7 +163,7 @@ func (l fnlogger) WithName(name string) logr.LogSink {
return &l return &l
} }
func (l fnlogger) WithValues(kvList ...interface{}) logr.LogSink { func (l fnlogger) WithValues(kvList ...any) logr.LogSink {
l.Formatter.AddValues(kvList) l.Formatter.AddValues(kvList)
return &l return &l
} }
@ -173,12 +173,12 @@ func (l fnlogger) WithCallDepth(depth int) logr.LogSink {
return &l return &l
} }
func (l fnlogger) Info(level int, msg string, kvList ...interface{}) { func (l fnlogger) Info(level int, msg string, kvList ...any) {
prefix, args := l.FormatInfo(level, msg, kvList) prefix, args := l.FormatInfo(level, msg, kvList)
l.write(prefix, args) l.write(prefix, args)
} }
func (l fnlogger) Error(err error, msg string, kvList ...interface{}) { func (l fnlogger) Error(err error, msg string, kvList ...any) {
prefix, args := l.FormatError(err, msg, kvList) prefix, args := l.FormatError(err, msg, kvList)
l.write(prefix, args) l.write(prefix, args)
} }
@ -229,7 +229,7 @@ func newFormatter(opts Options, outfmt outputFormat) Formatter {
type Formatter struct { type Formatter struct {
outputFormat outputFormat outputFormat outputFormat
prefix string prefix string
values []interface{} values []any
valuesStr string valuesStr string
depth int depth int
opts *Options opts *Options
@ -246,10 +246,10 @@ const (
) )
// PseudoStruct is a list of key-value pairs that gets logged as a struct. // PseudoStruct is a list of key-value pairs that gets logged as a struct.
type PseudoStruct []interface{} type PseudoStruct []any
// render produces a log line, ready to use. // render produces a log line, ready to use.
func (f Formatter) render(builtins, args []interface{}) string { func (f Formatter) render(builtins, args []any) string {
// Empirically bytes.Buffer is faster than strings.Builder for this. // Empirically bytes.Buffer is faster than strings.Builder for this.
buf := bytes.NewBuffer(make([]byte, 0, 1024)) buf := bytes.NewBuffer(make([]byte, 0, 1024))
if f.outputFormat == outputJSON { if f.outputFormat == outputJSON {
@ -292,7 +292,7 @@ func (f Formatter) render(builtins, args []interface{}) string {
// This function returns a potentially modified version of kvList, which // This function returns a potentially modified version of kvList, which
// ensures that there is a value for every key (adding a value if needed) and // ensures that there is a value for every key (adding a value if needed) and
// that each key is a string (substituting a key if needed). // that each key is a string (substituting a key if needed).
func (f Formatter) flatten(buf *bytes.Buffer, kvList []interface{}, continuing bool, escapeKeys bool) []interface{} { func (f Formatter) flatten(buf *bytes.Buffer, kvList []any, continuing bool, escapeKeys bool) []any {
// This logic overlaps with sanitize() but saves one type-cast per key, // This logic overlaps with sanitize() but saves one type-cast per key,
// which can be measurable. // which can be measurable.
if len(kvList)%2 != 0 { if len(kvList)%2 != 0 {
@ -334,7 +334,7 @@ func (f Formatter) flatten(buf *bytes.Buffer, kvList []interface{}, continuing b
return kvList return kvList
} }
func (f Formatter) pretty(value interface{}) string { func (f Formatter) pretty(value any) string {
return f.prettyWithFlags(value, 0, 0) return f.prettyWithFlags(value, 0, 0)
} }
@ -343,7 +343,7 @@ const (
) )
// TODO: This is not fast. Most of the overhead goes here. // TODO: This is not fast. Most of the overhead goes here.
func (f Formatter) prettyWithFlags(value interface{}, flags uint32, depth int) string { func (f Formatter) prettyWithFlags(value any, flags uint32, depth int) string {
if depth > f.opts.MaxLogDepth { if depth > f.opts.MaxLogDepth {
return `"<max-log-depth-exceeded>"` return `"<max-log-depth-exceeded>"`
} }
@ -614,7 +614,7 @@ func isEmpty(v reflect.Value) bool {
return false return false
} }
func invokeMarshaler(m logr.Marshaler) (ret interface{}) { func invokeMarshaler(m logr.Marshaler) (ret any) {
defer func() { defer func() {
if r := recover(); r != nil { if r := recover(); r != nil {
ret = fmt.Sprintf("<panic: %s>", r) ret = fmt.Sprintf("<panic: %s>", r)
@ -675,12 +675,12 @@ func (f Formatter) caller() Caller {
const noValue = "<no-value>" const noValue = "<no-value>"
func (f Formatter) nonStringKey(v interface{}) string { func (f Formatter) nonStringKey(v any) string {
return fmt.Sprintf("<non-string-key: %s>", f.snippet(v)) return fmt.Sprintf("<non-string-key: %s>", f.snippet(v))
} }
// snippet produces a short snippet string of an arbitrary value. // snippet produces a short snippet string of an arbitrary value.
func (f Formatter) snippet(v interface{}) string { func (f Formatter) snippet(v any) string {
const snipLen = 16 const snipLen = 16
snip := f.pretty(v) snip := f.pretty(v)
@ -693,7 +693,7 @@ func (f Formatter) snippet(v interface{}) string {
// sanitize ensures that a list of key-value pairs has a value for every key // sanitize ensures that a list of key-value pairs has a value for every key
// (adding a value if needed) and that each key is a string (substituting a key // (adding a value if needed) and that each key is a string (substituting a key
// if needed). // if needed).
func (f Formatter) sanitize(kvList []interface{}) []interface{} { func (f Formatter) sanitize(kvList []any) []any {
if len(kvList)%2 != 0 { if len(kvList)%2 != 0 {
kvList = append(kvList, noValue) kvList = append(kvList, noValue)
} }
@ -727,8 +727,8 @@ func (f Formatter) GetDepth() int {
// FormatInfo renders an Info log message into strings. The prefix will be // FormatInfo renders an Info log message into strings. The prefix will be
// empty when no names were set (via AddNames), or when the output is // empty when no names were set (via AddNames), or when the output is
// configured for JSON. // configured for JSON.
func (f Formatter) FormatInfo(level int, msg string, kvList []interface{}) (prefix, argsStr string) { func (f Formatter) FormatInfo(level int, msg string, kvList []any) (prefix, argsStr string) {
args := make([]interface{}, 0, 64) // using a constant here impacts perf args := make([]any, 0, 64) // using a constant here impacts perf
prefix = f.prefix prefix = f.prefix
if f.outputFormat == outputJSON { if f.outputFormat == outputJSON {
args = append(args, "logger", prefix) args = append(args, "logger", prefix)
@ -747,8 +747,8 @@ func (f Formatter) FormatInfo(level int, msg string, kvList []interface{}) (pref
// FormatError renders an Error log message into strings. The prefix will be // FormatError renders an Error log message into strings. The prefix will be
// empty when no names were set (via AddNames), or when the output is // empty when no names were set (via AddNames), or when the output is
// configured for JSON. // configured for JSON.
func (f Formatter) FormatError(err error, msg string, kvList []interface{}) (prefix, argsStr string) { func (f Formatter) FormatError(err error, msg string, kvList []any) (prefix, argsStr string) {
args := make([]interface{}, 0, 64) // using a constant here impacts perf args := make([]any, 0, 64) // using a constant here impacts perf
prefix = f.prefix prefix = f.prefix
if f.outputFormat == outputJSON { if f.outputFormat == outputJSON {
args = append(args, "logger", prefix) args = append(args, "logger", prefix)
@ -761,12 +761,12 @@ func (f Formatter) FormatError(err error, msg string, kvList []interface{}) (pre
args = append(args, "caller", f.caller()) args = append(args, "caller", f.caller())
} }
args = append(args, "msg", msg) args = append(args, "msg", msg)
var loggableErr interface{} var loggableErr any
if err != nil { if err != nil {
loggableErr = err.Error() loggableErr = err.Error()
} }
args = append(args, "error", loggableErr) args = append(args, "error", loggableErr)
return f.prefix, f.render(args, kvList) return prefix, f.render(args, kvList)
} }
// AddName appends the specified name. funcr uses '/' characters to separate // AddName appends the specified name. funcr uses '/' characters to separate
@ -781,7 +781,7 @@ func (f *Formatter) AddName(name string) {
// AddValues adds key-value pairs to the set of saved values to be logged with // AddValues adds key-value pairs to the set of saved values to be logged with
// each log line. // each log line.
func (f *Formatter) AddValues(kvList []interface{}) { func (f *Formatter) AddValues(kvList []any) {
// Three slice args forces a copy. // Three slice args forces a copy.
n := len(f.values) n := len(f.values)
f.values = append(f.values[:n:n], kvList...) f.values = append(f.values[:n:n], kvList...)

35
vendor/github.com/go-logr/logr/logr.go generated vendored
View file

@ -127,9 +127,9 @@ limitations under the License.
// such a value can call its methods without having to check whether the // such a value can call its methods without having to check whether the
// instance is ready for use. // instance is ready for use.
// //
// Calling methods with the null logger (Logger{}) as instance will crash // The zero logger (= Logger{}) is identical to Discard() and discards all log
// because it has no LogSink. Therefore this null logger should never be passed // entries. Code that receives a Logger by value can simply call it, the methods
// around. For cases where passing a logger is optional, a pointer to Logger // will never crash. For cases where passing a logger is optional, a pointer to Logger
// should be used. // should be used.
// //
// # Key Naming Conventions // # Key Naming Conventions
@ -258,6 +258,12 @@ type Logger struct {
// Enabled tests whether this Logger is enabled. For example, commandline // Enabled tests whether this Logger is enabled. For example, commandline
// flags might be used to set the logging verbosity and disable some info logs. // flags might be used to set the logging verbosity and disable some info logs.
func (l Logger) Enabled() bool { func (l Logger) Enabled() bool {
// Some implementations of LogSink look at the caller in Enabled (e.g.
// different verbosity levels per package or file), but we only pass one
// CallDepth in (via Init). This means that all calls from Logger to the
// LogSink's Enabled, Info, and Error methods must have the same number of
// frames. In other words, Logger methods can't call other Logger methods
// which call these LogSink methods unless we do it the same in all paths.
return l.sink != nil && l.sink.Enabled(l.level) return l.sink != nil && l.sink.Enabled(l.level)
} }
@ -267,11 +273,11 @@ func (l Logger) Enabled() bool {
// line. The key/value pairs can then be used to add additional variable // line. The key/value pairs can then be used to add additional variable
// information. The key/value pairs must alternate string keys and arbitrary // information. The key/value pairs must alternate string keys and arbitrary
// values. // values.
func (l Logger) Info(msg string, keysAndValues ...interface{}) { func (l Logger) Info(msg string, keysAndValues ...any) {
if l.sink == nil { if l.sink == nil {
return return
} }
if l.Enabled() { if l.sink.Enabled(l.level) { // see comment in Enabled
if withHelper, ok := l.sink.(CallStackHelperLogSink); ok { if withHelper, ok := l.sink.(CallStackHelperLogSink); ok {
withHelper.GetCallStackHelper()() withHelper.GetCallStackHelper()()
} }
@ -289,7 +295,7 @@ func (l Logger) Info(msg string, keysAndValues ...interface{}) {
// while the err argument should be used to attach the actual error that // while the err argument should be used to attach the actual error that
// triggered this log line, if present. The err parameter is optional // triggered this log line, if present. The err parameter is optional
// and nil may be passed instead of an error instance. // and nil may be passed instead of an error instance.
func (l Logger) Error(err error, msg string, keysAndValues ...interface{}) { func (l Logger) Error(err error, msg string, keysAndValues ...any) {
if l.sink == nil { if l.sink == nil {
return return
} }
@ -314,9 +320,16 @@ func (l Logger) V(level int) Logger {
return l return l
} }
// GetV returns the verbosity level of the logger. If the logger's LogSink is
// nil as in the Discard logger, this will always return 0.
func (l Logger) GetV() int {
// 0 if l.sink nil because of the if check in V above.
return l.level
}
// WithValues returns a new Logger instance with additional key/value pairs. // WithValues returns a new Logger instance with additional key/value pairs.
// See Info for documentation on how key/value pairs work. // See Info for documentation on how key/value pairs work.
func (l Logger) WithValues(keysAndValues ...interface{}) Logger { func (l Logger) WithValues(keysAndValues ...any) Logger {
if l.sink == nil { if l.sink == nil {
return l return l
} }
@ -467,15 +480,15 @@ type LogSink interface {
// The level argument is provided for optional logging. This method will // The level argument is provided for optional logging. This method will
// only be called when Enabled(level) is true. See Logger.Info for more // only be called when Enabled(level) is true. See Logger.Info for more
// details. // details.
Info(level int, msg string, keysAndValues ...interface{}) Info(level int, msg string, keysAndValues ...any)
// Error logs an error, with the given message and key/value pairs as // Error logs an error, with the given message and key/value pairs as
// context. See Logger.Error for more details. // context. See Logger.Error for more details.
Error(err error, msg string, keysAndValues ...interface{}) Error(err error, msg string, keysAndValues ...any)
// WithValues returns a new LogSink with additional key/value pairs. See // WithValues returns a new LogSink with additional key/value pairs. See
// Logger.WithValues for more details. // Logger.WithValues for more details.
WithValues(keysAndValues ...interface{}) LogSink WithValues(keysAndValues ...any) LogSink
// WithName returns a new LogSink with the specified name appended. See // WithName returns a new LogSink with the specified name appended. See
// Logger.WithName for more details. // Logger.WithName for more details.
@ -546,5 +559,5 @@ type Marshaler interface {
// with exported fields // with exported fields
// //
// It may return any value of any type. // It may return any value of any type.
MarshalLog() interface{} MarshalLog() any
} }

669
vendor/github.com/google/go-cmp/cmp/compare.go generated vendored
View file

@ -1,669 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package cmp determines equality of values.
//
// This package is intended to be a more powerful and safer alternative to
// reflect.DeepEqual for comparing whether two values are semantically equal.
// It is intended to only be used in tests, as performance is not a goal and
// it may panic if it cannot compare the values. Its propensity towards
// panicking means that its unsuitable for production environments where a
// spurious panic may be fatal.
//
// The primary features of cmp are:
//
// - When the default behavior of equality does not suit the test's needs,
// custom equality functions can override the equality operation.
// For example, an equality function may report floats as equal so long as
// they are within some tolerance of each other.
//
// - Types with an Equal method may use that method to determine equality.
// This allows package authors to determine the equality operation
// for the types that they define.
//
// - If no custom equality functions are used and no Equal method is defined,
// equality is determined by recursively comparing the primitive kinds on
// both values, much like reflect.DeepEqual. Unlike reflect.DeepEqual,
// unexported fields are not compared by default; they result in panics
// unless suppressed by using an Ignore option (see cmpopts.IgnoreUnexported)
// or explicitly compared using the Exporter option.
package cmp
import (
"fmt"
"reflect"
"strings"
"github.com/google/go-cmp/cmp/internal/diff"
"github.com/google/go-cmp/cmp/internal/function"
"github.com/google/go-cmp/cmp/internal/value"
)
// TODO(≥go1.18): Use any instead of interface{}.
// Equal reports whether x and y are equal by recursively applying the
// following rules in the given order to x and y and all of their sub-values:
//
// - Let S be the set of all Ignore, Transformer, and Comparer options that
// remain after applying all path filters, value filters, and type filters.
// If at least one Ignore exists in S, then the comparison is ignored.
// If the number of Transformer and Comparer options in S is non-zero,
// then Equal panics because it is ambiguous which option to use.
// If S contains a single Transformer, then use that to transform
// the current values and recursively call Equal on the output values.
// If S contains a single Comparer, then use that to compare the current values.
// Otherwise, evaluation proceeds to the next rule.
//
// - If the values have an Equal method of the form "(T) Equal(T) bool" or
// "(T) Equal(I) bool" where T is assignable to I, then use the result of
// x.Equal(y) even if x or y is nil. Otherwise, no such method exists and
// evaluation proceeds to the next rule.
//
// - Lastly, try to compare x and y based on their basic kinds.
// Simple kinds like booleans, integers, floats, complex numbers, strings,
// and channels are compared using the equivalent of the == operator in Go.
// Functions are only equal if they are both nil, otherwise they are unequal.
//
// Structs are equal if recursively calling Equal on all fields report equal.
// If a struct contains unexported fields, Equal panics unless an Ignore option
// (e.g., cmpopts.IgnoreUnexported) ignores that field or the Exporter option
// explicitly permits comparing the unexported field.
//
// Slices are equal if they are both nil or both non-nil, where recursively
// calling Equal on all non-ignored slice or array elements report equal.
// Empty non-nil slices and nil slices are not equal; to equate empty slices,
// consider using cmpopts.EquateEmpty.
//
// Maps are equal if they are both nil or both non-nil, where recursively
// calling Equal on all non-ignored map entries report equal.
// Map keys are equal according to the == operator.
// To use custom comparisons for map keys, consider using cmpopts.SortMaps.
// Empty non-nil maps and nil maps are not equal; to equate empty maps,
// consider using cmpopts.EquateEmpty.
//
// Pointers and interfaces are equal if they are both nil or both non-nil,
// where they have the same underlying concrete type and recursively
// calling Equal on the underlying values reports equal.
//
// Before recursing into a pointer, slice element, or map, the current path
// is checked to detect whether the address has already been visited.
// If there is a cycle, then the pointed at values are considered equal
// only if both addresses were previously visited in the same path step.
func Equal(x, y interface{}, opts ...Option) bool {
s := newState(opts)
s.compareAny(rootStep(x, y))
return s.result.Equal()
}
// Diff returns a human-readable report of the differences between two values:
// y - x. It returns an empty string if and only if Equal returns true for the
// same input values and options.
//
// The output is displayed as a literal in pseudo-Go syntax.
// At the start of each line, a "-" prefix indicates an element removed from x,
// a "+" prefix to indicates an element added from y, and the lack of a prefix
// indicates an element common to both x and y. If possible, the output
// uses fmt.Stringer.String or error.Error methods to produce more humanly
// readable outputs. In such cases, the string is prefixed with either an
// 's' or 'e' character, respectively, to indicate that the method was called.
//
// Do not depend on this output being stable. If you need the ability to
// programmatically interpret the difference, consider using a custom Reporter.
func Diff(x, y interface{}, opts ...Option) string {
s := newState(opts)
// Optimization: If there are no other reporters, we can optimize for the
// common case where the result is equal (and thus no reported difference).
// This avoids the expensive construction of a difference tree.
if len(s.reporters) == 0 {
s.compareAny(rootStep(x, y))
if s.result.Equal() {
return ""
}
s.result = diff.Result{} // Reset results
}
r := new(defaultReporter)
s.reporters = append(s.reporters, reporter{r})
s.compareAny(rootStep(x, y))
d := r.String()
if (d == "") != s.result.Equal() {
panic("inconsistent difference and equality results")
}
return d
}
// rootStep constructs the first path step. If x and y have differing types,
// then they are stored within an empty interface type.
func rootStep(x, y interface{}) PathStep {
vx := reflect.ValueOf(x)
vy := reflect.ValueOf(y)
// If the inputs are different types, auto-wrap them in an empty interface
// so that they have the same parent type.
var t reflect.Type
if !vx.IsValid() || !vy.IsValid() || vx.Type() != vy.Type() {
t = anyType
if vx.IsValid() {
vvx := reflect.New(t).Elem()
vvx.Set(vx)
vx = vvx
}
if vy.IsValid() {
vvy := reflect.New(t).Elem()
vvy.Set(vy)
vy = vvy
}
} else {
t = vx.Type()
}
return &pathStep{t, vx, vy}
}
type state struct {
// These fields represent the "comparison state".
// Calling statelessCompare must not result in observable changes to these.
result diff.Result // The current result of comparison
curPath Path // The current path in the value tree
curPtrs pointerPath // The current set of visited pointers
reporters []reporter // Optional reporters
// recChecker checks for infinite cycles applying the same set of
// transformers upon the output of itself.
recChecker recChecker
// dynChecker triggers pseudo-random checks for option correctness.
// It is safe for statelessCompare to mutate this value.
dynChecker dynChecker
// These fields, once set by processOption, will not change.
exporters []exporter // List of exporters for structs with unexported fields
opts Options // List of all fundamental and filter options
}
func newState(opts []Option) *state {
// Always ensure a validator option exists to validate the inputs.
s := &state{opts: Options{validator{}}}
s.curPtrs.Init()
s.processOption(Options(opts))
return s
}
func (s *state) processOption(opt Option) {
switch opt := opt.(type) {
case nil:
case Options:
for _, o := range opt {
s.processOption(o)
}
case coreOption:
type filtered interface {
isFiltered() bool
}
if fopt, ok := opt.(filtered); ok && !fopt.isFiltered() {
panic(fmt.Sprintf("cannot use an unfiltered option: %v", opt))
}
s.opts = append(s.opts, opt)
case exporter:
s.exporters = append(s.exporters, opt)
case reporter:
s.reporters = append(s.reporters, opt)
default:
panic(fmt.Sprintf("unknown option %T", opt))
}
}
// statelessCompare compares two values and returns the result.
// This function is stateless in that it does not alter the current result,
// or output to any registered reporters.
func (s *state) statelessCompare(step PathStep) diff.Result {
// We do not save and restore curPath and curPtrs because all of the
// compareX methods should properly push and pop from them.
// It is an implementation bug if the contents of the paths differ from
// when calling this function to when returning from it.
oldResult, oldReporters := s.result, s.reporters
s.result = diff.Result{} // Reset result
s.reporters = nil // Remove reporters to avoid spurious printouts
s.compareAny(step)
res := s.result
s.result, s.reporters = oldResult, oldReporters
return res
}
func (s *state) compareAny(step PathStep) {
// Update the path stack.
s.curPath.push(step)
defer s.curPath.pop()
for _, r := range s.reporters {
r.PushStep(step)
defer r.PopStep()
}
s.recChecker.Check(s.curPath)
// Cycle-detection for slice elements (see NOTE in compareSlice).
t := step.Type()
vx, vy := step.Values()
if si, ok := step.(SliceIndex); ok && si.isSlice && vx.IsValid() && vy.IsValid() {
px, py := vx.Addr(), vy.Addr()
if eq, visited := s.curPtrs.Push(px, py); visited {
s.report(eq, reportByCycle)
return
}
defer s.curPtrs.Pop(px, py)
}
// Rule 1: Check whether an option applies on this node in the value tree.
if s.tryOptions(t, vx, vy) {
return
}
// Rule 2: Check whether the type has a valid Equal method.
if s.tryMethod(t, vx, vy) {
return
}
// Rule 3: Compare based on the underlying kind.
switch t.Kind() {
case reflect.Bool:
s.report(vx.Bool() == vy.Bool(), 0)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
s.report(vx.Int() == vy.Int(), 0)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
s.report(vx.Uint() == vy.Uint(), 0)
case reflect.Float32, reflect.Float64:
s.report(vx.Float() == vy.Float(), 0)
case reflect.Complex64, reflect.Complex128:
s.report(vx.Complex() == vy.Complex(), 0)
case reflect.String:
s.report(vx.String() == vy.String(), 0)
case reflect.Chan, reflect.UnsafePointer:
s.report(vx.Pointer() == vy.Pointer(), 0)
case reflect.Func:
s.report(vx.IsNil() && vy.IsNil(), 0)
case reflect.Struct:
s.compareStruct(t, vx, vy)
case reflect.Slice, reflect.Array:
s.compareSlice(t, vx, vy)
case reflect.Map:
s.compareMap(t, vx, vy)
case reflect.Ptr:
s.comparePtr(t, vx, vy)
case reflect.Interface:
s.compareInterface(t, vx, vy)
default:
panic(fmt.Sprintf("%v kind not handled", t.Kind()))
}
}
func (s *state) tryOptions(t reflect.Type, vx, vy reflect.Value) bool {
// Evaluate all filters and apply the remaining options.
if opt := s.opts.filter(s, t, vx, vy); opt != nil {
opt.apply(s, vx, vy)
return true
}
return false
}
func (s *state) tryMethod(t reflect.Type, vx, vy reflect.Value) bool {
// Check if this type even has an Equal method.
m, ok := t.MethodByName("Equal")
if !ok || !function.IsType(m.Type, function.EqualAssignable) {
return false
}
eq := s.callTTBFunc(m.Func, vx, vy)
s.report(eq, reportByMethod)
return true
}
func (s *state) callTRFunc(f, v reflect.Value, step Transform) reflect.Value {
if !s.dynChecker.Next() {
return f.Call([]reflect.Value{v})[0]
}
// Run the function twice and ensure that we get the same results back.
// We run in goroutines so that the race detector (if enabled) can detect
// unsafe mutations to the input.
c := make(chan reflect.Value)
go detectRaces(c, f, v)
got := <-c
want := f.Call([]reflect.Value{v})[0]
if step.vx, step.vy = got, want; !s.statelessCompare(step).Equal() {
// To avoid false-positives with non-reflexive equality operations,
// we sanity check whether a value is equal to itself.
if step.vx, step.vy = want, want; !s.statelessCompare(step).Equal() {
return want
}
panic(fmt.Sprintf("non-deterministic function detected: %s", function.NameOf(f)))
}
return want
}
func (s *state) callTTBFunc(f, x, y reflect.Value) bool {
if !s.dynChecker.Next() {
return f.Call([]reflect.Value{x, y})[0].Bool()
}
// Swapping the input arguments is sufficient to check that
// f is symmetric and deterministic.
// We run in goroutines so that the race detector (if enabled) can detect
// unsafe mutations to the input.
c := make(chan reflect.Value)
go detectRaces(c, f, y, x)
got := <-c
want := f.Call([]reflect.Value{x, y})[0].Bool()
if !got.IsValid() || got.Bool() != want {
panic(fmt.Sprintf("non-deterministic or non-symmetric function detected: %s", function.NameOf(f)))
}
return want
}
func detectRaces(c chan<- reflect.Value, f reflect.Value, vs ...reflect.Value) {
var ret reflect.Value
defer func() {
recover() // Ignore panics, let the other call to f panic instead
c <- ret
}()
ret = f.Call(vs)[0]
}
func (s *state) compareStruct(t reflect.Type, vx, vy reflect.Value) {
var addr bool
var vax, vay reflect.Value // Addressable versions of vx and vy
var mayForce, mayForceInit bool
step := StructField{&structField{}}
for i := 0; i < t.NumField(); i++ {
step.typ = t.Field(i).Type
step.vx = vx.Field(i)
step.vy = vy.Field(i)
step.name = t.Field(i).Name
step.idx = i
step.unexported = !isExported(step.name)
if step.unexported {
if step.name == "_" {
continue
}
// Defer checking of unexported fields until later to give an
// Ignore a chance to ignore the field.
if !vax.IsValid() || !vay.IsValid() {
// For retrieveUnexportedField to work, the parent struct must
// be addressable. Create a new copy of the values if
// necessary to make them addressable.
addr = vx.CanAddr() || vy.CanAddr()
vax = makeAddressable(vx)
vay = makeAddressable(vy)
}
if !mayForceInit {
for _, xf := range s.exporters {
mayForce = mayForce || xf(t)
}
mayForceInit = true
}
step.mayForce = mayForce
step.paddr = addr
step.pvx = vax
step.pvy = vay
step.field = t.Field(i)
}
s.compareAny(step)
}
}
func (s *state) compareSlice(t reflect.Type, vx, vy reflect.Value) {
isSlice := t.Kind() == reflect.Slice
if isSlice && (vx.IsNil() || vy.IsNil()) {
s.report(vx.IsNil() && vy.IsNil(), 0)
return
}
// NOTE: It is incorrect to call curPtrs.Push on the slice header pointer
// since slices represents a list of pointers, rather than a single pointer.
// The pointer checking logic must be handled on a per-element basis
// in compareAny.
//
// A slice header (see reflect.SliceHeader) in Go is a tuple of a starting
// pointer P, a length N, and a capacity C. Supposing each slice element has
// a memory size of M, then the slice is equivalent to the list of pointers:
// [P+i*M for i in range(N)]
//
// For example, v[:0] and v[:1] are slices with the same starting pointer,
// but they are clearly different values. Using the slice pointer alone
// violates the assumption that equal pointers implies equal values.
step := SliceIndex{&sliceIndex{pathStep: pathStep{typ: t.Elem()}, isSlice: isSlice}}
withIndexes := func(ix, iy int) SliceIndex {
if ix >= 0 {
step.vx, step.xkey = vx.Index(ix), ix
} else {
step.vx, step.xkey = reflect.Value{}, -1
}
if iy >= 0 {
step.vy, step.ykey = vy.Index(iy), iy
} else {
step.vy, step.ykey = reflect.Value{}, -1
}
return step
}
// Ignore options are able to ignore missing elements in a slice.
// However, detecting these reliably requires an optimal differencing
// algorithm, for which diff.Difference is not.
//
// Instead, we first iterate through both slices to detect which elements
// would be ignored if standing alone. The index of non-discarded elements
// are stored in a separate slice, which diffing is then performed on.
var indexesX, indexesY []int
var ignoredX, ignoredY []bool
for ix := 0; ix < vx.Len(); ix++ {
ignored := s.statelessCompare(withIndexes(ix, -1)).NumDiff == 0
if !ignored {
indexesX = append(indexesX, ix)
}
ignoredX = append(ignoredX, ignored)
}
for iy := 0; iy < vy.Len(); iy++ {
ignored := s.statelessCompare(withIndexes(-1, iy)).NumDiff == 0
if !ignored {
indexesY = append(indexesY, iy)
}
ignoredY = append(ignoredY, ignored)
}
// Compute an edit-script for slices vx and vy (excluding ignored elements).
edits := diff.Difference(len(indexesX), len(indexesY), func(ix, iy int) diff.Result {
return s.statelessCompare(withIndexes(indexesX[ix], indexesY[iy]))
})
// Replay the ignore-scripts and the edit-script.
var ix, iy int
for ix < vx.Len() || iy < vy.Len() {
var e diff.EditType
switch {
case ix < len(ignoredX) && ignoredX[ix]:
e = diff.UniqueX
case iy < len(ignoredY) && ignoredY[iy]:
e = diff.UniqueY
default:
e, edits = edits[0], edits[1:]
}
switch e {
case diff.UniqueX:
s.compareAny(withIndexes(ix, -1))
ix++
case diff.UniqueY:
s.compareAny(withIndexes(-1, iy))
iy++
default:
s.compareAny(withIndexes(ix, iy))
ix++
iy++
}
}
}
func (s *state) compareMap(t reflect.Type, vx, vy reflect.Value) {
if vx.IsNil() || vy.IsNil() {
s.report(vx.IsNil() && vy.IsNil(), 0)
return
}
// Cycle-detection for maps.
if eq, visited := s.curPtrs.Push(vx, vy); visited {
s.report(eq, reportByCycle)
return
}
defer s.curPtrs.Pop(vx, vy)
// We combine and sort the two map keys so that we can perform the
// comparisons in a deterministic order.
step := MapIndex{&mapIndex{pathStep: pathStep{typ: t.Elem()}}}
for _, k := range value.SortKeys(append(vx.MapKeys(), vy.MapKeys()...)) {
step.vx = vx.MapIndex(k)
step.vy = vy.MapIndex(k)
step.key = k
if !step.vx.IsValid() && !step.vy.IsValid() {
// It is possible for both vx and vy to be invalid if the
// key contained a NaN value in it.
//
// Even with the ability to retrieve NaN keys in Go 1.12,
// there still isn't a sensible way to compare the values since
// a NaN key may map to multiple unordered values.
// The most reasonable way to compare NaNs would be to compare the
// set of values. However, this is impossible to do efficiently
// since set equality is provably an O(n^2) operation given only
// an Equal function. If we had a Less function or Hash function,
// this could be done in O(n*log(n)) or O(n), respectively.
//
// Rather than adding complex logic to deal with NaNs, make it
// the user's responsibility to compare such obscure maps.
const help = "consider providing a Comparer to compare the map"
panic(fmt.Sprintf("%#v has map key with NaNs\n%s", s.curPath, help))
}
s.compareAny(step)
}
}
func (s *state) comparePtr(t reflect.Type, vx, vy reflect.Value) {
if vx.IsNil() || vy.IsNil() {
s.report(vx.IsNil() && vy.IsNil(), 0)
return
}
// Cycle-detection for pointers.
if eq, visited := s.curPtrs.Push(vx, vy); visited {
s.report(eq, reportByCycle)
return
}
defer s.curPtrs.Pop(vx, vy)
vx, vy = vx.Elem(), vy.Elem()
s.compareAny(Indirect{&indirect{pathStep{t.Elem(), vx, vy}}})
}
func (s *state) compareInterface(t reflect.Type, vx, vy reflect.Value) {
if vx.IsNil() || vy.IsNil() {
s.report(vx.IsNil() && vy.IsNil(), 0)
return
}
vx, vy = vx.Elem(), vy.Elem()
if vx.Type() != vy.Type() {
s.report(false, 0)
return
}
s.compareAny(TypeAssertion{&typeAssertion{pathStep{vx.Type(), vx, vy}}})
}
func (s *state) report(eq bool, rf resultFlags) {
if rf&reportByIgnore == 0 {
if eq {
s.result.NumSame++
rf |= reportEqual
} else {
s.result.NumDiff++
rf |= reportUnequal
}
}
for _, r := range s.reporters {
r.Report(Result{flags: rf})
}
}
// recChecker tracks the state needed to periodically perform checks that
// user provided transformers are not stuck in an infinitely recursive cycle.
type recChecker struct{ next int }
// Check scans the Path for any recursive transformers and panics when any
// recursive transformers are detected. Note that the presence of a
// recursive Transformer does not necessarily imply an infinite cycle.
// As such, this check only activates after some minimal number of path steps.
func (rc *recChecker) Check(p Path) {
const minLen = 1 << 16
if rc.next == 0 {
rc.next = minLen
}
if len(p) < rc.next {
return
}
rc.next <<= 1
// Check whether the same transformer has appeared at least twice.
var ss []string
m := map[Option]int{}
for _, ps := range p {
if t, ok := ps.(Transform); ok {
t := t.Option()
if m[t] == 1 { // Transformer was used exactly once before
tf := t.(*transformer).fnc.Type()
ss = append(ss, fmt.Sprintf("%v: %v => %v", t, tf.In(0), tf.Out(0)))
}
m[t]++
}
}
if len(ss) > 0 {
const warning = "recursive set of Transformers detected"
const help = "consider using cmpopts.AcyclicTransformer"
set := strings.Join(ss, "\n\t")
panic(fmt.Sprintf("%s:\n\t%s\n%s", warning, set, help))
}
}
// dynChecker tracks the state needed to periodically perform checks that
// user provided functions are symmetric and deterministic.
// The zero value is safe for immediate use.
type dynChecker struct{ curr, next int }
// Next increments the state and reports whether a check should be performed.
//
// Checks occur every Nth function call, where N is a triangular number:
//
// 0 1 3 6 10 15 21 28 36 45 55 66 78 91 105 120 136 153 171 190 ...
//
// See https://en.wikipedia.org/wiki/Triangular_number
//
// This sequence ensures that the cost of checks drops significantly as
// the number of functions calls grows larger.
func (dc *dynChecker) Next() bool {
ok := dc.curr == dc.next
if ok {
dc.curr = 0
dc.next++
}
dc.curr++
return ok
}
// makeAddressable returns a value that is always addressable.
// It returns the input verbatim if it is already addressable,
// otherwise it creates a new value and returns an addressable copy.
func makeAddressable(v reflect.Value) reflect.Value {
if v.CanAddr() {
return v
}
vc := reflect.New(v.Type()).Elem()
vc.Set(v)
return vc
}

16
vendor/github.com/google/go-cmp/cmp/export_panic.go generated vendored
View file

@ -1,16 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build purego
// +build purego
package cmp
import "reflect"
const supportExporters = false
func retrieveUnexportedField(reflect.Value, reflect.StructField, bool) reflect.Value {
panic("no support for forcibly accessing unexported fields")
}

36
vendor/github.com/google/go-cmp/cmp/export_unsafe.go generated vendored
View file

@ -1,36 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !purego
// +build !purego
package cmp
import (
"reflect"
"unsafe"
)
const supportExporters = true
// retrieveUnexportedField uses unsafe to forcibly retrieve any field from
// a struct such that the value has read-write permissions.
//
// The parent struct, v, must be addressable, while f must be a StructField
// describing the field to retrieve. If addr is false,
// then the returned value will be shallowed copied to be non-addressable.
func retrieveUnexportedField(v reflect.Value, f reflect.StructField, addr bool) reflect.Value {
ve := reflect.NewAt(f.Type, unsafe.Pointer(uintptr(unsafe.Pointer(v.UnsafeAddr()))+f.Offset)).Elem()
if !addr {
// A field is addressable if and only if the struct is addressable.
// If the original parent value was not addressable, shallow copy the
// value to make it non-addressable to avoid leaking an implementation
// detail of how forcibly exporting a field works.
if ve.Kind() == reflect.Interface && ve.IsNil() {
return reflect.Zero(f.Type)
}
return reflect.ValueOf(ve.Interface()).Convert(f.Type)
}
return ve
}

18
vendor/github.com/google/go-cmp/cmp/internal/diff/debug_disable.go generated vendored
View file

@ -1,18 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !cmp_debug
// +build !cmp_debug
package diff
var debug debugger
type debugger struct{}
func (debugger) Begin(_, _ int, f EqualFunc, _, _ *EditScript) EqualFunc {
return f
}
func (debugger) Update() {}
func (debugger) Finish() {}

123
vendor/github.com/google/go-cmp/cmp/internal/diff/debug_enable.go generated vendored
View file

@ -1,123 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build cmp_debug
// +build cmp_debug
package diff
import (
"fmt"
"strings"
"sync"
"time"
)
// The algorithm can be seen running in real-time by enabling debugging:
// go test -tags=cmp_debug -v
//
// Example output:
// === RUN TestDifference/#34
// ┌───────────────────────────────┐
// │ \ · · · · · · · · · · · · · · │
// │ · # · · · · · · · · · · · · · │
// │ · \ · · · · · · · · · · · · · │
// │ · · \ · · · · · · · · · · · · │
// │ · · · X # · · · · · · · · · · │
// │ · · · # \ · · · · · · · · · · │
// │ · · · · · # # · · · · · · · · │
// │ · · · · · # \ · · · · · · · · │
// │ · · · · · · · \ · · · · · · · │
// │ · · · · · · · · \ · · · · · · │
// │ · · · · · · · · · \ · · · · · │
// │ · · · · · · · · · · \ · · # · │
// │ · · · · · · · · · · · \ # # · │
// │ · · · · · · · · · · · # # # · │
// │ · · · · · · · · · · # # # # · │
// │ · · · · · · · · · # # # # # · │
// │ · · · · · · · · · · · · · · \ │
// └───────────────────────────────┘
// [.Y..M.XY......YXYXY.|]
//
// The grid represents the edit-graph where the horizontal axis represents
// list X and the vertical axis represents list Y. The start of the two lists
// is the top-left, while the ends are the bottom-right. The '·' represents
// an unexplored node in the graph. The '\' indicates that the two symbols
// from list X and Y are equal. The 'X' indicates that two symbols are similar
// (but not exactly equal) to each other. The '#' indicates that the two symbols
// are different (and not similar). The algorithm traverses this graph trying to
// make the paths starting in the top-left and the bottom-right connect.
//
// The series of '.', 'X', 'Y', and 'M' characters at the bottom represents
// the currently established path from the forward and reverse searches,
// separated by a '|' character.
const (
updateDelay = 100 * time.Millisecond
finishDelay = 500 * time.Millisecond
ansiTerminal = true // ANSI escape codes used to move terminal cursor
)
var debug debugger
type debugger struct {
sync.Mutex
p1, p2 EditScript
fwdPath, revPath *EditScript
grid []byte
lines int
}
func (dbg *debugger) Begin(nx, ny int, f EqualFunc, p1, p2 *EditScript) EqualFunc {
dbg.Lock()
dbg.fwdPath, dbg.revPath = p1, p2
top := "┌─" + strings.Repeat("──", nx) + "┐\n"
row := "│ " + strings.Repeat("· ", nx) + "│\n"
btm := "└─" + strings.Repeat("──", nx) + "┘\n"
dbg.grid = []byte(top + strings.Repeat(row, ny) + btm)
dbg.lines = strings.Count(dbg.String(), "\n")
fmt.Print(dbg)
// Wrap the EqualFunc so that we can intercept each result.
return func(ix, iy int) (r Result) {
cell := dbg.grid[len(top)+iy*len(row):][len("│ ")+len("· ")*ix:][:len("·")]
for i := range cell {
cell[i] = 0 // Zero out the multiple bytes of UTF-8 middle-dot
}
switch r = f(ix, iy); {
case r.Equal():
cell[0] = '\\'
case r.Similar():
cell[0] = 'X'
default:
cell[0] = '#'
}
return
}
}
func (dbg *debugger) Update() {
dbg.print(updateDelay)
}
func (dbg *debugger) Finish() {
dbg.print(finishDelay)
dbg.Unlock()
}
func (dbg *debugger) String() string {
dbg.p1, dbg.p2 = *dbg.fwdPath, dbg.p2[:0]
for i := len(*dbg.revPath) - 1; i >= 0; i-- {
dbg.p2 = append(dbg.p2, (*dbg.revPath)[i])
}
return fmt.Sprintf("%s[%v|%v]\n\n", dbg.grid, dbg.p1, dbg.p2)
}
func (dbg *debugger) print(d time.Duration) {
if ansiTerminal {
fmt.Printf("\x1b[%dA", dbg.lines) // Reset terminal cursor
}
fmt.Print(dbg)
time.Sleep(d)
}

402
vendor/github.com/google/go-cmp/cmp/internal/diff/diff.go generated vendored
View file

@ -1,402 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package diff implements an algorithm for producing edit-scripts.
// The edit-script is a sequence of operations needed to transform one list
// of symbols into another (or vice-versa). The edits allowed are insertions,
// deletions, and modifications. The summation of all edits is called the
// Levenshtein distance as this problem is well-known in computer science.
//
// This package prioritizes performance over accuracy. That is, the run time
// is more important than obtaining a minimal Levenshtein distance.
package diff
import (
"math/rand"
"time"
"github.com/google/go-cmp/cmp/internal/flags"
)
// EditType represents a single operation within an edit-script.
type EditType uint8
const (
// Identity indicates that a symbol pair is identical in both list X and Y.
Identity EditType = iota
// UniqueX indicates that a symbol only exists in X and not Y.
UniqueX
// UniqueY indicates that a symbol only exists in Y and not X.
UniqueY
// Modified indicates that a symbol pair is a modification of each other.
Modified
)
// EditScript represents the series of differences between two lists.
type EditScript []EditType
// String returns a human-readable string representing the edit-script where
// Identity, UniqueX, UniqueY, and Modified are represented by the
// '.', 'X', 'Y', and 'M' characters, respectively.
func (es EditScript) String() string {
b := make([]byte, len(es))
for i, e := range es {
switch e {
case Identity:
b[i] = '.'
case UniqueX:
b[i] = 'X'
case UniqueY:
b[i] = 'Y'
case Modified:
b[i] = 'M'
default:
panic("invalid edit-type")
}
}
return string(b)
}
// stats returns a histogram of the number of each type of edit operation.
func (es EditScript) stats() (s struct{ NI, NX, NY, NM int }) {
for _, e := range es {
switch e {
case Identity:
s.NI++
case UniqueX:
s.NX++
case UniqueY:
s.NY++
case Modified:
s.NM++
default:
panic("invalid edit-type")
}
}
return
}
// Dist is the Levenshtein distance and is guaranteed to be 0 if and only if
// lists X and Y are equal.
func (es EditScript) Dist() int { return len(es) - es.stats().NI }
// LenX is the length of the X list.
func (es EditScript) LenX() int { return len(es) - es.stats().NY }
// LenY is the length of the Y list.
func (es EditScript) LenY() int { return len(es) - es.stats().NX }
// EqualFunc reports whether the symbols at indexes ix and iy are equal.
// When called by Difference, the index is guaranteed to be within nx and ny.
type EqualFunc func(ix int, iy int) Result
// Result is the result of comparison.
// NumSame is the number of sub-elements that are equal.
// NumDiff is the number of sub-elements that are not equal.
type Result struct{ NumSame, NumDiff int }
// BoolResult returns a Result that is either Equal or not Equal.
func BoolResult(b bool) Result {
if b {
return Result{NumSame: 1} // Equal, Similar
} else {
return Result{NumDiff: 2} // Not Equal, not Similar
}
}
// Equal indicates whether the symbols are equal. Two symbols are equal
// if and only if NumDiff == 0. If Equal, then they are also Similar.
func (r Result) Equal() bool { return r.NumDiff == 0 }
// Similar indicates whether two symbols are similar and may be represented
// by using the Modified type. As a special case, we consider binary comparisons
// (i.e., those that return Result{1, 0} or Result{0, 1}) to be similar.
//
// The exact ratio of NumSame to NumDiff to determine similarity may change.
func (r Result) Similar() bool {
// Use NumSame+1 to offset NumSame so that binary comparisons are similar.
return r.NumSame+1 >= r.NumDiff
}
var randBool = rand.New(rand.NewSource(time.Now().Unix())).Intn(2) == 0
// Difference reports whether two lists of lengths nx and ny are equal
// given the definition of equality provided as f.
//
// This function returns an edit-script, which is a sequence of operations
// needed to convert one list into the other. The following invariants for
// the edit-script are maintained:
// - eq == (es.Dist()==0)
// - nx == es.LenX()
// - ny == es.LenY()
//
// This algorithm is not guaranteed to be an optimal solution (i.e., one that
// produces an edit-script with a minimal Levenshtein distance). This algorithm
// favors performance over optimality. The exact output is not guaranteed to
// be stable and may change over time.
func Difference(nx, ny int, f EqualFunc) (es EditScript) {
// This algorithm is based on traversing what is known as an "edit-graph".
// See Figure 1 from "An O(ND) Difference Algorithm and Its Variations"
// by Eugene W. Myers. Since D can be as large as N itself, this is
// effectively O(N^2). Unlike the algorithm from that paper, we are not
// interested in the optimal path, but at least some "decent" path.
//
// For example, let X and Y be lists of symbols:
// X = [A B C A B B A]
// Y = [C B A B A C]
//
// The edit-graph can be drawn as the following:
// A B C A B B A
// ┌─────────────┐
// C │_|_|\|_|_|_|_│ 0
// B │_|\|_|_|\|\|_│ 1
// A │\|_|_|\|_|_|\│ 2
// B │_|\|_|_|\|\|_│ 3
// A │\|_|_|\|_|_|\│ 4
// C │ | |\| | | | │ 5
// └─────────────┘ 6
// 0 1 2 3 4 5 6 7
//
// List X is written along the horizontal axis, while list Y is written
// along the vertical axis. At any point on this grid, if the symbol in
// list X matches the corresponding symbol in list Y, then a '\' is drawn.
// The goal of any minimal edit-script algorithm is to find a path from the
// top-left corner to the bottom-right corner, while traveling through the
// fewest horizontal or vertical edges.
// A horizontal edge is equivalent to inserting a symbol from list X.
// A vertical edge is equivalent to inserting a symbol from list Y.
// A diagonal edge is equivalent to a matching symbol between both X and Y.
// Invariants:
// - 0 ≤ fwdPath.X ≤ (fwdFrontier.X, revFrontier.X) ≤ revPath.X ≤ nx
// - 0 ≤ fwdPath.Y ≤ (fwdFrontier.Y, revFrontier.Y) ≤ revPath.Y ≤ ny
//
// In general:
// - fwdFrontier.X < revFrontier.X
// - fwdFrontier.Y < revFrontier.Y
//
// Unless, it is time for the algorithm to terminate.
fwdPath := path{+1, point{0, 0}, make(EditScript, 0, (nx+ny)/2)}
revPath := path{-1, point{nx, ny}, make(EditScript, 0)}
fwdFrontier := fwdPath.point // Forward search frontier
revFrontier := revPath.point // Reverse search frontier
// Search budget bounds the cost of searching for better paths.
// The longest sequence of non-matching symbols that can be tolerated is
// approximately the square-root of the search budget.
searchBudget := 4 * (nx + ny) // O(n)
// Running the tests with the "cmp_debug" build tag prints a visualization
// of the algorithm running in real-time. This is educational for
// understanding how the algorithm works. See debug_enable.go.
f = debug.Begin(nx, ny, f, &fwdPath.es, &revPath.es)
// The algorithm below is a greedy, meet-in-the-middle algorithm for
// computing sub-optimal edit-scripts between two lists.
//
// The algorithm is approximately as follows:
// - Searching for differences switches back-and-forth between
// a search that starts at the beginning (the top-left corner), and
// a search that starts at the end (the bottom-right corner).
// The goal of the search is connect with the search
// from the opposite corner.
// - As we search, we build a path in a greedy manner,
// where the first match seen is added to the path (this is sub-optimal,
// but provides a decent result in practice). When matches are found,
// we try the next pair of symbols in the lists and follow all matches
// as far as possible.
// - When searching for matches, we search along a diagonal going through
// through the "frontier" point. If no matches are found,
// we advance the frontier towards the opposite corner.
// - This algorithm terminates when either the X coordinates or the
// Y coordinates of the forward and reverse frontier points ever intersect.
// This algorithm is correct even if searching only in the forward direction
// or in the reverse direction. We do both because it is commonly observed
// that two lists commonly differ because elements were added to the front
// or end of the other list.
//
// Non-deterministically start with either the forward or reverse direction
// to introduce some deliberate instability so that we have the flexibility
// to change this algorithm in the future.
if flags.Deterministic || randBool {
goto forwardSearch
} else {
goto reverseSearch
}
forwardSearch:
{
// Forward search from the beginning.
if fwdFrontier.X >= revFrontier.X || fwdFrontier.Y >= revFrontier.Y || searchBudget == 0 {
goto finishSearch
}
for stop1, stop2, i := false, false, 0; !(stop1 && stop2) && searchBudget > 0; i++ {
// Search in a diagonal pattern for a match.
z := zigzag(i)
p := point{fwdFrontier.X + z, fwdFrontier.Y - z}
switch {
case p.X >= revPath.X || p.Y < fwdPath.Y:
stop1 = true // Hit top-right corner
case p.Y >= revPath.Y || p.X < fwdPath.X:
stop2 = true // Hit bottom-left corner
case f(p.X, p.Y).Equal():
// Match found, so connect the path to this point.
fwdPath.connect(p, f)
fwdPath.append(Identity)
// Follow sequence of matches as far as possible.
for fwdPath.X < revPath.X && fwdPath.Y < revPath.Y {
if !f(fwdPath.X, fwdPath.Y).Equal() {
break
}
fwdPath.append(Identity)
}
fwdFrontier = fwdPath.point
stop1, stop2 = true, true
default:
searchBudget-- // Match not found
}
debug.Update()
}
// Advance the frontier towards reverse point.
if revPath.X-fwdFrontier.X >= revPath.Y-fwdFrontier.Y {
fwdFrontier.X++
} else {
fwdFrontier.Y++
}
goto reverseSearch
}
reverseSearch:
{
// Reverse search from the end.
if fwdFrontier.X >= revFrontier.X || fwdFrontier.Y >= revFrontier.Y || searchBudget == 0 {
goto finishSearch
}
for stop1, stop2, i := false, false, 0; !(stop1 && stop2) && searchBudget > 0; i++ {
// Search in a diagonal pattern for a match.
z := zigzag(i)
p := point{revFrontier.X - z, revFrontier.Y + z}
switch {
case fwdPath.X >= p.X || revPath.Y < p.Y:
stop1 = true // Hit bottom-left corner
case fwdPath.Y >= p.Y || revPath.X < p.X:
stop2 = true // Hit top-right corner
case f(p.X-1, p.Y-1).Equal():
// Match found, so connect the path to this point.
revPath.connect(p, f)
revPath.append(Identity)
// Follow sequence of matches as far as possible.
for fwdPath.X < revPath.X && fwdPath.Y < revPath.Y {
if !f(revPath.X-1, revPath.Y-1).Equal() {
break
}
revPath.append(Identity)
}
revFrontier = revPath.point
stop1, stop2 = true, true
default:
searchBudget-- // Match not found
}
debug.Update()
}
// Advance the frontier towards forward point.
if revFrontier.X-fwdPath.X >= revFrontier.Y-fwdPath.Y {
revFrontier.X--
} else {
revFrontier.Y--
}
goto forwardSearch
}
finishSearch:
// Join the forward and reverse paths and then append the reverse path.
fwdPath.connect(revPath.point, f)
for i := len(revPath.es) - 1; i >= 0; i-- {
t := revPath.es[i]
revPath.es = revPath.es[:i]
fwdPath.append(t)
}
debug.Finish()
return fwdPath.es
}
type path struct {
dir int // +1 if forward, -1 if reverse
point // Leading point of the EditScript path
es EditScript
}
// connect appends any necessary Identity, Modified, UniqueX, or UniqueY types
// to the edit-script to connect p.point to dst.
func (p *path) connect(dst point, f EqualFunc) {
if p.dir > 0 {
// Connect in forward direction.
for dst.X > p.X && dst.Y > p.Y {
switch r := f(p.X, p.Y); {
case r.Equal():
p.append(Identity)
case r.Similar():
p.append(Modified)
case dst.X-p.X >= dst.Y-p.Y:
p.append(UniqueX)
default:
p.append(UniqueY)
}
}
for dst.X > p.X {
p.append(UniqueX)
}
for dst.Y > p.Y {
p.append(UniqueY)
}
} else {
// Connect in reverse direction.
for p.X > dst.X && p.Y > dst.Y {
switch r := f(p.X-1, p.Y-1); {
case r.Equal():
p.append(Identity)
case r.Similar():
p.append(Modified)
case p.Y-dst.Y >= p.X-dst.X:
p.append(UniqueY)
default:
p.append(UniqueX)
}
}
for p.X > dst.X {
p.append(UniqueX)
}
for p.Y > dst.Y {
p.append(UniqueY)
}
}
}
func (p *path) append(t EditType) {
p.es = append(p.es, t)
switch t {
case Identity, Modified:
p.add(p.dir, p.dir)
case UniqueX:
p.add(p.dir, 0)
case UniqueY:
p.add(0, p.dir)
}
debug.Update()
}
type point struct{ X, Y int }
func (p *point) add(dx, dy int) { p.X += dx; p.Y += dy }
// zigzag maps a consecutive sequence of integers to a zig-zag sequence.
//
// [0 1 2 3 4 5 ...] => [0 -1 +1 -2 +2 ...]
func zigzag(x int) int {
if x&1 != 0 {
x = ^x
}
return x >> 1
}

9
vendor/github.com/google/go-cmp/cmp/internal/flags/flags.go generated vendored
View file

@ -1,9 +0,0 @@
// Copyright 2019, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package flags
// Deterministic controls whether the output of Diff should be deterministic.
// This is only used for testing.
var Deterministic bool

99
vendor/github.com/google/go-cmp/cmp/internal/function/func.go generated vendored
View file

@ -1,99 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package function provides functionality for identifying function types.
package function
import (
"reflect"
"regexp"
"runtime"
"strings"
)
type funcType int
const (
_ funcType = iota
tbFunc // func(T) bool
ttbFunc // func(T, T) bool
trbFunc // func(T, R) bool
tibFunc // func(T, I) bool
trFunc // func(T) R
Equal = ttbFunc // func(T, T) bool
EqualAssignable = tibFunc // func(T, I) bool; encapsulates func(T, T) bool
Transformer = trFunc // func(T) R
ValueFilter = ttbFunc // func(T, T) bool
Less = ttbFunc // func(T, T) bool
ValuePredicate = tbFunc // func(T) bool
KeyValuePredicate = trbFunc // func(T, R) bool
)
var boolType = reflect.TypeOf(true)
// IsType reports whether the reflect.Type is of the specified function type.
func IsType(t reflect.Type, ft funcType) bool {
if t == nil || t.Kind() != reflect.Func || t.IsVariadic() {
return false
}
ni, no := t.NumIn(), t.NumOut()
switch ft {
case tbFunc: // func(T) bool
if ni == 1 && no == 1 && t.Out(0) == boolType {
return true
}
case ttbFunc: // func(T, T) bool
if ni == 2 && no == 1 && t.In(0) == t.In(1) && t.Out(0) == boolType {
return true
}
case trbFunc: // func(T, R) bool
if ni == 2 && no == 1 && t.Out(0) == boolType {
return true
}
case tibFunc: // func(T, I) bool
if ni == 2 && no == 1 && t.In(0).AssignableTo(t.In(1)) && t.Out(0) == boolType {
return true
}
case trFunc: // func(T) R
if ni == 1 && no == 1 {
return true
}
}
return false
}
var lastIdentRx = regexp.MustCompile(`[_\p{L}][_\p{L}\p{N}]*$`)
// NameOf returns the name of the function value.
func NameOf(v reflect.Value) string {
fnc := runtime.FuncForPC(v.Pointer())
if fnc == nil {
return "<unknown>"
}
fullName := fnc.Name() // e.g., "long/path/name/mypkg.(*MyType).(long/path/name/mypkg.myMethod)-fm"
// Method closures have a "-fm" suffix.
fullName = strings.TrimSuffix(fullName, "-fm")
var name string
for len(fullName) > 0 {
inParen := strings.HasSuffix(fullName, ")")
fullName = strings.TrimSuffix(fullName, ")")
s := lastIdentRx.FindString(fullName)
if s == "" {
break
}
name = s + "." + name
fullName = strings.TrimSuffix(fullName, s)
if i := strings.LastIndexByte(fullName, '('); inParen && i >= 0 {
fullName = fullName[:i]
}
fullName = strings.TrimSuffix(fullName, ".")
}
return strings.TrimSuffix(name, ".")
}

164
vendor/github.com/google/go-cmp/cmp/internal/value/name.go generated vendored
View file

@ -1,164 +0,0 @@
// Copyright 2020, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package value
import (
"reflect"
"strconv"
)
var anyType = reflect.TypeOf((*interface{})(nil)).Elem()
// TypeString is nearly identical to reflect.Type.String,
// but has an additional option to specify that full type names be used.
func TypeString(t reflect.Type, qualified bool) string {
return string(appendTypeName(nil, t, qualified, false))
}
func appendTypeName(b []byte, t reflect.Type, qualified, elideFunc bool) []byte {
// BUG: Go reflection provides no way to disambiguate two named types
// of the same name and within the same package,
// but declared within the namespace of different functions.
// Use the "any" alias instead of "interface{}" for better readability.
if t == anyType {
return append(b, "any"...)
}
// Named type.
if t.Name() != "" {
if qualified && t.PkgPath() != "" {
b = append(b, '"')
b = append(b, t.PkgPath()...)
b = append(b, '"')
b = append(b, '.')
b = append(b, t.Name()...)
} else {
b = append(b, t.String()...)
}
return b
}
// Unnamed type.
switch k := t.Kind(); k {
case reflect.Bool, reflect.String, reflect.UnsafePointer,
reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128:
b = append(b, k.String()...)
case reflect.Chan:
if t.ChanDir() == reflect.RecvDir {
b = append(b, "<-"...)
}
b = append(b, "chan"...)
if t.ChanDir() == reflect.SendDir {
b = append(b, "<-"...)
}
b = append(b, ' ')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Func:
if !elideFunc {
b = append(b, "func"...)
}
b = append(b, '(')
for i := 0; i < t.NumIn(); i++ {
if i > 0 {
b = append(b, ", "...)
}
if i == t.NumIn()-1 && t.IsVariadic() {
b = append(b, "..."...)
b = appendTypeName(b, t.In(i).Elem(), qualified, false)
} else {
b = appendTypeName(b, t.In(i), qualified, false)
}
}
b = append(b, ')')
switch t.NumOut() {
case 0:
// Do nothing
case 1:
b = append(b, ' ')
b = appendTypeName(b, t.Out(0), qualified, false)
default:
b = append(b, " ("...)
for i := 0; i < t.NumOut(); i++ {
if i > 0 {
b = append(b, ", "...)
}
b = appendTypeName(b, t.Out(i), qualified, false)
}
b = append(b, ')')
}
case reflect.Struct:
b = append(b, "struct{ "...)
for i := 0; i < t.NumField(); i++ {
if i > 0 {
b = append(b, "; "...)
}
sf := t.Field(i)
if !sf.Anonymous {
if qualified && sf.PkgPath != "" {
b = append(b, '"')
b = append(b, sf.PkgPath...)
b = append(b, '"')
b = append(b, '.')
}
b = append(b, sf.Name...)
b = append(b, ' ')
}
b = appendTypeName(b, sf.Type, qualified, false)
if sf.Tag != "" {
b = append(b, ' ')
b = strconv.AppendQuote(b, string(sf.Tag))
}
}
if b[len(b)-1] == ' ' {
b = b[:len(b)-1]
} else {
b = append(b, ' ')
}
b = append(b, '}')
case reflect.Slice, reflect.Array:
b = append(b, '[')
if k == reflect.Array {
b = strconv.AppendUint(b, uint64(t.Len()), 10)
}
b = append(b, ']')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Map:
b = append(b, "map["...)
b = appendTypeName(b, t.Key(), qualified, false)
b = append(b, ']')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Ptr:
b = append(b, '*')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Interface:
b = append(b, "interface{ "...)
for i := 0; i < t.NumMethod(); i++ {
if i > 0 {
b = append(b, "; "...)
}
m := t.Method(i)
if qualified && m.PkgPath != "" {
b = append(b, '"')
b = append(b, m.PkgPath...)
b = append(b, '"')
b = append(b, '.')
}
b = append(b, m.Name...)
b = appendTypeName(b, m.Type, qualified, true)
}
if b[len(b)-1] == ' ' {
b = b[:len(b)-1]
} else {
b = append(b, ' ')
}
b = append(b, '}')
default:
panic("invalid kind: " + k.String())
}
return b
}

34
vendor/github.com/google/go-cmp/cmp/internal/value/pointer_purego.go generated vendored
View file

@ -1,34 +0,0 @@
// Copyright 2018, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build purego
// +build purego
package value
import "reflect"
// Pointer is an opaque typed pointer and is guaranteed to be comparable.
type Pointer struct {
p uintptr
t reflect.Type
}
// PointerOf returns a Pointer from v, which must be a
// reflect.Ptr, reflect.Slice, or reflect.Map.
func PointerOf(v reflect.Value) Pointer {
// NOTE: Storing a pointer as an uintptr is technically incorrect as it
// assumes that the GC implementation does not use a moving collector.
return Pointer{v.Pointer(), v.Type()}
}
// IsNil reports whether the pointer is nil.
func (p Pointer) IsNil() bool {
return p.p == 0
}
// Uintptr returns the pointer as a uintptr.
func (p Pointer) Uintptr() uintptr {
return p.p
}

37
vendor/github.com/google/go-cmp/cmp/internal/value/pointer_unsafe.go generated vendored
View file

@ -1,37 +0,0 @@
// Copyright 2018, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !purego
// +build !purego
package value
import (
"reflect"
"unsafe"
)
// Pointer is an opaque typed pointer and is guaranteed to be comparable.
type Pointer struct {
p unsafe.Pointer
t reflect.Type
}
// PointerOf returns a Pointer from v, which must be a
// reflect.Ptr, reflect.Slice, or reflect.Map.
func PointerOf(v reflect.Value) Pointer {
// The proper representation of a pointer is unsafe.Pointer,
// which is necessary if the GC ever uses a moving collector.
return Pointer{unsafe.Pointer(v.Pointer()), v.Type()}
}
// IsNil reports whether the pointer is nil.
func (p Pointer) IsNil() bool {
return p.p == nil
}
// Uintptr returns the pointer as a uintptr.
func (p Pointer) Uintptr() uintptr {
return uintptr(p.p)
}

106
vendor/github.com/google/go-cmp/cmp/internal/value/sort.go generated vendored
View file

@ -1,106 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package value
import (
"fmt"
"math"
"reflect"
"sort"
)
// SortKeys sorts a list of map keys, deduplicating keys if necessary.
// The type of each value must be comparable.
func SortKeys(vs []reflect.Value) []reflect.Value {
if len(vs) == 0 {
return vs
}
// Sort the map keys.
sort.SliceStable(vs, func(i, j int) bool { return isLess(vs[i], vs[j]) })
// Deduplicate keys (fails for NaNs).
vs2 := vs[:1]
for _, v := range vs[1:] {
if isLess(vs2[len(vs2)-1], v) {
vs2 = append(vs2, v)
}
}
return vs2
}
// isLess is a generic function for sorting arbitrary map keys.
// The inputs must be of the same type and must be comparable.
func isLess(x, y reflect.Value) bool {
switch x.Type().Kind() {
case reflect.Bool:
return !x.Bool() && y.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return x.Int() < y.Int()
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return x.Uint() < y.Uint()
case reflect.Float32, reflect.Float64:
// NOTE: This does not sort -0 as less than +0
// since Go maps treat -0 and +0 as equal keys.
fx, fy := x.Float(), y.Float()
return fx < fy || math.IsNaN(fx) && !math.IsNaN(fy)
case reflect.Complex64, reflect.Complex128:
cx, cy := x.Complex(), y.Complex()
rx, ix, ry, iy := real(cx), imag(cx), real(cy), imag(cy)
if rx == ry || (math.IsNaN(rx) && math.IsNaN(ry)) {
return ix < iy || math.IsNaN(ix) && !math.IsNaN(iy)
}
return rx < ry || math.IsNaN(rx) && !math.IsNaN(ry)
case reflect.Ptr, reflect.UnsafePointer, reflect.Chan:
return x.Pointer() < y.Pointer()
case reflect.String:
return x.String() < y.String()
case reflect.Array:
for i := 0; i < x.Len(); i++ {
if isLess(x.Index(i), y.Index(i)) {
return true
}
if isLess(y.Index(i), x.Index(i)) {
return false
}
}
return false
case reflect.Struct:
for i := 0; i < x.NumField(); i++ {
if isLess(x.Field(i), y.Field(i)) {
return true
}
if isLess(y.Field(i), x.Field(i)) {
return false
}
}
return false
case reflect.Interface:
vx, vy := x.Elem(), y.Elem()
if !vx.IsValid() || !vy.IsValid() {
return !vx.IsValid() && vy.IsValid()
}
tx, ty := vx.Type(), vy.Type()
if tx == ty {
return isLess(x.Elem(), y.Elem())
}
if tx.Kind() != ty.Kind() {
return vx.Kind() < vy.Kind()
}
if tx.String() != ty.String() {
return tx.String() < ty.String()
}
if tx.PkgPath() != ty.PkgPath() {
return tx.PkgPath() < ty.PkgPath()
}
// This can happen in rare situations, so we fallback to just comparing
// the unique pointer for a reflect.Type. This guarantees deterministic
// ordering within a program, but it is obviously not stable.
return reflect.ValueOf(vx.Type()).Pointer() < reflect.ValueOf(vy.Type()).Pointer()
default:
// Must be Func, Map, or Slice; which are not comparable.
panic(fmt.Sprintf("%T is not comparable", x.Type()))
}
}

554
vendor/github.com/google/go-cmp/cmp/options.go generated vendored
View file

@ -1,554 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"fmt"
"reflect"
"regexp"
"strings"
"github.com/google/go-cmp/cmp/internal/function"
)
// Option configures for specific behavior of Equal and Diff. In particular,
// the fundamental Option functions (Ignore, Transformer, and Comparer),
// configure how equality is determined.
//
// The fundamental options may be composed with filters (FilterPath and
// FilterValues) to control the scope over which they are applied.
//
// The cmp/cmpopts package provides helper functions for creating options that
// may be used with Equal and Diff.
type Option interface {
// filter applies all filters and returns the option that remains.
// Each option may only read s.curPath and call s.callTTBFunc.
//
// An Options is returned only if multiple comparers or transformers
// can apply simultaneously and will only contain values of those types
// or sub-Options containing values of those types.
filter(s *state, t reflect.Type, vx, vy reflect.Value) applicableOption
}
// applicableOption represents the following types:
//
// Fundamental: ignore | validator | *comparer | *transformer
// Grouping: Options
type applicableOption interface {
Option
// apply executes the option, which may mutate s or panic.
apply(s *state, vx, vy reflect.Value)
}
// coreOption represents the following types:
//
// Fundamental: ignore | validator | *comparer | *transformer
// Filters: *pathFilter | *valuesFilter
type coreOption interface {
Option
isCore()
}
type core struct{}
func (core) isCore() {}
// Options is a list of Option values that also satisfies the Option interface.
// Helper comparison packages may return an Options value when packing multiple
// Option values into a single Option. When this package processes an Options,
// it will be implicitly expanded into a flat list.
//
// Applying a filter on an Options is equivalent to applying that same filter
// on all individual options held within.
type Options []Option
func (opts Options) filter(s *state, t reflect.Type, vx, vy reflect.Value) (out applicableOption) {
for _, opt := range opts {
switch opt := opt.filter(s, t, vx, vy); opt.(type) {
case ignore:
return ignore{} // Only ignore can short-circuit evaluation
case validator:
out = validator{} // Takes precedence over comparer or transformer
case *comparer, *transformer, Options:
switch out.(type) {
case nil:
out = opt
case validator:
// Keep validator
case *comparer, *transformer, Options:
out = Options{out, opt} // Conflicting comparers or transformers
}
}
}
return out
}
func (opts Options) apply(s *state, _, _ reflect.Value) {
const warning = "ambiguous set of applicable options"
const help = "consider using filters to ensure at most one Comparer or Transformer may apply"
var ss []string
for _, opt := range flattenOptions(nil, opts) {
ss = append(ss, fmt.Sprint(opt))
}
set := strings.Join(ss, "\n\t")
panic(fmt.Sprintf("%s at %#v:\n\t%s\n%s", warning, s.curPath, set, help))
}
func (opts Options) String() string {
var ss []string
for _, opt := range opts {
ss = append(ss, fmt.Sprint(opt))
}
return fmt.Sprintf("Options{%s}", strings.Join(ss, ", "))
}
// FilterPath returns a new Option where opt is only evaluated if filter f
// returns true for the current Path in the value tree.
//
// This filter is called even if a slice element or map entry is missing and
// provides an opportunity to ignore such cases. The filter function must be
// symmetric such that the filter result is identical regardless of whether the
// missing value is from x or y.
//
// The option passed in may be an Ignore, Transformer, Comparer, Options, or
// a previously filtered Option.
func FilterPath(f func(Path) bool, opt Option) Option {
if f == nil {
panic("invalid path filter function")
}
if opt := normalizeOption(opt); opt != nil {
return &pathFilter{fnc: f, opt: opt}
}
return nil
}
type pathFilter struct {
core
fnc func(Path) bool
opt Option
}
func (f pathFilter) filter(s *state, t reflect.Type, vx, vy reflect.Value) applicableOption {
if f.fnc(s.curPath) {
return f.opt.filter(s, t, vx, vy)
}
return nil
}
func (f pathFilter) String() string {
return fmt.Sprintf("FilterPath(%s, %v)", function.NameOf(reflect.ValueOf(f.fnc)), f.opt)
}
// FilterValues returns a new Option where opt is only evaluated if filter f,
// which is a function of the form "func(T, T) bool", returns true for the
// current pair of values being compared. If either value is invalid or
// the type of the values is not assignable to T, then this filter implicitly
// returns false.
//
// The filter function must be
// symmetric (i.e., agnostic to the order of the inputs) and
// deterministic (i.e., produces the same result when given the same inputs).
// If T is an interface, it is possible that f is called with two values with
// different concrete types that both implement T.
//
// The option passed in may be an Ignore, Transformer, Comparer, Options, or
// a previously filtered Option.
func FilterValues(f interface{}, opt Option) Option {
v := reflect.ValueOf(f)
if !function.IsType(v.Type(), function.ValueFilter) || v.IsNil() {
panic(fmt.Sprintf("invalid values filter function: %T", f))
}
if opt := normalizeOption(opt); opt != nil {
vf := &valuesFilter{fnc: v, opt: opt}
if ti := v.Type().In(0); ti.Kind() != reflect.Interface || ti.NumMethod() > 0 {
vf.typ = ti
}
return vf
}
return nil
}
type valuesFilter struct {
core
typ reflect.Type // T
fnc reflect.Value // func(T, T) bool
opt Option
}
func (f valuesFilter) filter(s *state, t reflect.Type, vx, vy reflect.Value) applicableOption {
if !vx.IsValid() || !vx.CanInterface() || !vy.IsValid() || !vy.CanInterface() {
return nil
}
if (f.typ == nil || t.AssignableTo(f.typ)) && s.callTTBFunc(f.fnc, vx, vy) {
return f.opt.filter(s, t, vx, vy)
}
return nil
}
func (f valuesFilter) String() string {
return fmt.Sprintf("FilterValues(%s, %v)", function.NameOf(f.fnc), f.opt)
}
// Ignore is an Option that causes all comparisons to be ignored.
// This value is intended to be combined with FilterPath or FilterValues.
// It is an error to pass an unfiltered Ignore option to Equal.
func Ignore() Option { return ignore{} }
type ignore struct{ core }
func (ignore) isFiltered() bool { return false }
func (ignore) filter(_ *state, _ reflect.Type, _, _ reflect.Value) applicableOption { return ignore{} }
func (ignore) apply(s *state, _, _ reflect.Value) { s.report(true, reportByIgnore) }
func (ignore) String() string { return "Ignore()" }
// validator is a sentinel Option type to indicate that some options could not
// be evaluated due to unexported fields, missing slice elements, or
// missing map entries. Both values are validator only for unexported fields.
type validator struct{ core }
func (validator) filter(_ *state, _ reflect.Type, vx, vy reflect.Value) applicableOption {
if !vx.IsValid() || !vy.IsValid() {
return validator{}
}
if !vx.CanInterface() || !vy.CanInterface() {
return validator{}
}
return nil
}
func (validator) apply(s *state, vx, vy reflect.Value) {
// Implies missing slice element or map entry.
if !vx.IsValid() || !vy.IsValid() {
s.report(vx.IsValid() == vy.IsValid(), 0)
return
}
// Unable to Interface implies unexported field without visibility access.
if !vx.CanInterface() || !vy.CanInterface() {
help := "consider using a custom Comparer; if you control the implementation of type, you can also consider using an Exporter, AllowUnexported, or cmpopts.IgnoreUnexported"
var name string
if t := s.curPath.Index(-2).Type(); t.Name() != "" {
// Named type with unexported fields.
name = fmt.Sprintf("%q.%v", t.PkgPath(), t.Name()) // e.g., "path/to/package".MyType
if _, ok := reflect.New(t).Interface().(error); ok {
help = "consider using cmpopts.EquateErrors to compare error values"
}
} else {
// Unnamed type with unexported fields. Derive PkgPath from field.
var pkgPath string
for i := 0; i < t.NumField() && pkgPath == ""; i++ {
pkgPath = t.Field(i).PkgPath
}
name = fmt.Sprintf("%q.(%v)", pkgPath, t.String()) // e.g., "path/to/package".(struct { a int })
}
panic(fmt.Sprintf("cannot handle unexported field at %#v:\n\t%v\n%s", s.curPath, name, help))
}
panic("not reachable")
}
// identRx represents a valid identifier according to the Go specification.
const identRx = `[_\p{L}][_\p{L}\p{N}]*`
var identsRx = regexp.MustCompile(`^` + identRx + `(\.` + identRx + `)*$`)
// Transformer returns an Option that applies a transformation function that
// converts values of a certain type into that of another.
//
// The transformer f must be a function "func(T) R" that converts values of
// type T to those of type R and is implicitly filtered to input values
// assignable to T. The transformer must not mutate T in any way.
//
// To help prevent some cases of infinite recursive cycles applying the
// same transform to the output of itself (e.g., in the case where the
// input and output types are the same), an implicit filter is added such that
// a transformer is applicable only if that exact transformer is not already
// in the tail of the Path since the last non-Transform step.
// For situations where the implicit filter is still insufficient,
// consider using cmpopts.AcyclicTransformer, which adds a filter
// to prevent the transformer from being recursively applied upon itself.
//
// The name is a user provided label that is used as the Transform.Name in the
// transformation PathStep (and eventually shown in the Diff output).
// The name must be a valid identifier or qualified identifier in Go syntax.
// If empty, an arbitrary name is used.
func Transformer(name string, f interface{}) Option {
v := reflect.ValueOf(f)
if !function.IsType(v.Type(), function.Transformer) || v.IsNil() {
panic(fmt.Sprintf("invalid transformer function: %T", f))
}
if name == "" {
name = function.NameOf(v)
if !identsRx.MatchString(name) {
name = "λ" // Lambda-symbol as placeholder name
}
} else if !identsRx.MatchString(name) {
panic(fmt.Sprintf("invalid name: %q", name))
}
tr := &transformer{name: name, fnc: reflect.ValueOf(f)}
if ti := v.Type().In(0); ti.Kind() != reflect.Interface || ti.NumMethod() > 0 {
tr.typ = ti
}
return tr
}
type transformer struct {
core
name string
typ reflect.Type // T
fnc reflect.Value // func(T) R
}
func (tr *transformer) isFiltered() bool { return tr.typ != nil }
func (tr *transformer) filter(s *state, t reflect.Type, _, _ reflect.Value) applicableOption {
for i := len(s.curPath) - 1; i >= 0; i-- {
if t, ok := s.curPath[i].(Transform); !ok {
break // Hit most recent non-Transform step
} else if tr == t.trans {
return nil // Cannot directly use same Transform
}
}
if tr.typ == nil || t.AssignableTo(tr.typ) {
return tr
}
return nil
}
func (tr *transformer) apply(s *state, vx, vy reflect.Value) {
step := Transform{&transform{pathStep{typ: tr.fnc.Type().Out(0)}, tr}}
vvx := s.callTRFunc(tr.fnc, vx, step)
vvy := s.callTRFunc(tr.fnc, vy, step)
step.vx, step.vy = vvx, vvy
s.compareAny(step)
}
func (tr transformer) String() string {
return fmt.Sprintf("Transformer(%s, %s)", tr.name, function.NameOf(tr.fnc))
}
// Comparer returns an Option that determines whether two values are equal
// to each other.
//
// The comparer f must be a function "func(T, T) bool" and is implicitly
// filtered to input values assignable to T. If T is an interface, it is
// possible that f is called with two values of different concrete types that
// both implement T.
//
// The equality function must be:
// - Symmetric: equal(x, y) == equal(y, x)
// - Deterministic: equal(x, y) == equal(x, y)
// - Pure: equal(x, y) does not modify x or y
func Comparer(f interface{}) Option {
v := reflect.ValueOf(f)
if !function.IsType(v.Type(), function.Equal) || v.IsNil() {
panic(fmt.Sprintf("invalid comparer function: %T", f))
}
cm := &comparer{fnc: v}
if ti := v.Type().In(0); ti.Kind() != reflect.Interface || ti.NumMethod() > 0 {
cm.typ = ti
}
return cm
}
type comparer struct {
core
typ reflect.Type // T
fnc reflect.Value // func(T, T) bool
}
func (cm *comparer) isFiltered() bool { return cm.typ != nil }
func (cm *comparer) filter(_ *state, t reflect.Type, _, _ reflect.Value) applicableOption {
if cm.typ == nil || t.AssignableTo(cm.typ) {
return cm
}
return nil
}
func (cm *comparer) apply(s *state, vx, vy reflect.Value) {
eq := s.callTTBFunc(cm.fnc, vx, vy)
s.report(eq, reportByFunc)
}
func (cm comparer) String() string {
return fmt.Sprintf("Comparer(%s)", function.NameOf(cm.fnc))
}
// Exporter returns an Option that specifies whether Equal is allowed to
// introspect into the unexported fields of certain struct types.
//
// Users of this option must understand that comparing on unexported fields
// from external packages is not safe since changes in the internal
// implementation of some external package may cause the result of Equal
// to unexpectedly change. However, it may be valid to use this option on types
// defined in an internal package where the semantic meaning of an unexported
// field is in the control of the user.
//
// In many cases, a custom Comparer should be used instead that defines
// equality as a function of the public API of a type rather than the underlying
// unexported implementation.
//
// For example, the reflect.Type documentation defines equality to be determined
// by the == operator on the interface (essentially performing a shallow pointer
// comparison) and most attempts to compare *regexp.Regexp types are interested
// in only checking that the regular expression strings are equal.
// Both of these are accomplished using Comparers:
//
// Comparer(func(x, y reflect.Type) bool { return x == y })
// Comparer(func(x, y *regexp.Regexp) bool { return x.String() == y.String() })
//
// In other cases, the cmpopts.IgnoreUnexported option can be used to ignore
// all unexported fields on specified struct types.
func Exporter(f func(reflect.Type) bool) Option {
if !supportExporters {
panic("Exporter is not supported on purego builds")
}
return exporter(f)
}
type exporter func(reflect.Type) bool
func (exporter) filter(_ *state, _ reflect.Type, _, _ reflect.Value) applicableOption {
panic("not implemented")
}
// AllowUnexported returns an Options that allows Equal to forcibly introspect
// unexported fields of the specified struct types.
//
// See Exporter for the proper use of this option.
func AllowUnexported(types ...interface{}) Option {
m := make(map[reflect.Type]bool)
for _, typ := range types {
t := reflect.TypeOf(typ)
if t.Kind() != reflect.Struct {
panic(fmt.Sprintf("invalid struct type: %T", typ))
}
m[t] = true
}
return exporter(func(t reflect.Type) bool { return m[t] })
}
// Result represents the comparison result for a single node and
// is provided by cmp when calling Report (see Reporter).
type Result struct {
_ [0]func() // Make Result incomparable
flags resultFlags
}
// Equal reports whether the node was determined to be equal or not.
// As a special case, ignored nodes are considered equal.
func (r Result) Equal() bool {
return r.flags&(reportEqual|reportByIgnore) != 0
}
// ByIgnore reports whether the node is equal because it was ignored.
// This never reports true if Equal reports false.
func (r Result) ByIgnore() bool {
return r.flags&reportByIgnore != 0
}
// ByMethod reports whether the Equal method determined equality.
func (r Result) ByMethod() bool {
return r.flags&reportByMethod != 0
}
// ByFunc reports whether a Comparer function determined equality.
func (r Result) ByFunc() bool {
return r.flags&reportByFunc != 0
}
// ByCycle reports whether a reference cycle was detected.
func (r Result) ByCycle() bool {
return r.flags&reportByCycle != 0
}
type resultFlags uint
const (
_ resultFlags = (1 << iota) / 2
reportEqual
reportUnequal
reportByIgnore
reportByMethod
reportByFunc
reportByCycle
)
// Reporter is an Option that can be passed to Equal. When Equal traverses
// the value trees, it calls PushStep as it descends into each node in the
// tree and PopStep as it ascend out of the node. The leaves of the tree are
// either compared (determined to be equal or not equal) or ignored and reported
// as such by calling the Report method.
func Reporter(r interface {
// PushStep is called when a tree-traversal operation is performed.
// The PathStep itself is only valid until the step is popped.
// The PathStep.Values are valid for the duration of the entire traversal
// and must not be mutated.
//
// Equal always calls PushStep at the start to provide an operation-less
// PathStep used to report the root values.
//
// Within a slice, the exact set of inserted, removed, or modified elements
// is unspecified and may change in future implementations.
// The entries of a map are iterated through in an unspecified order.
PushStep(PathStep)
// Report is called exactly once on leaf nodes to report whether the
// comparison identified the node as equal, unequal, or ignored.
// A leaf node is one that is immediately preceded by and followed by
// a pair of PushStep and PopStep calls.
Report(Result)
// PopStep ascends back up the value tree.
// There is always a matching pop call for every push call.
PopStep()
}) Option {
return reporter{r}
}
type reporter struct{ reporterIface }
type reporterIface interface {
PushStep(PathStep)
Report(Result)
PopStep()
}
func (reporter) filter(_ *state, _ reflect.Type, _, _ reflect.Value) applicableOption {
panic("not implemented")
}
// normalizeOption normalizes the input options such that all Options groups
// are flattened and groups with a single element are reduced to that element.
// Only coreOptions and Options containing coreOptions are allowed.
func normalizeOption(src Option) Option {
switch opts := flattenOptions(nil, Options{src}); len(opts) {
case 0:
return nil
case 1:
return opts[0]
default:
return opts
}
}
// flattenOptions copies all options in src to dst as a flat list.
// Only coreOptions and Options containing coreOptions are allowed.
func flattenOptions(dst, src Options) Options {
for _, opt := range src {
switch opt := opt.(type) {
case nil:
continue
case Options:
dst = flattenOptions(dst, opt)
case coreOption:
dst = append(dst, opt)
default:
panic(fmt.Sprintf("invalid option type: %T", opt))
}
}
return dst
}

380
vendor/github.com/google/go-cmp/cmp/path.go generated vendored
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@ -1,380 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"fmt"
"reflect"
"strings"
"unicode"
"unicode/utf8"
"github.com/google/go-cmp/cmp/internal/value"
)
// Path is a list of PathSteps describing the sequence of operations to get
// from some root type to the current position in the value tree.
// The first Path element is always an operation-less PathStep that exists
// simply to identify the initial type.
//
// When traversing structs with embedded structs, the embedded struct will
// always be accessed as a field before traversing the fields of the
// embedded struct themselves. That is, an exported field from the
// embedded struct will never be accessed directly from the parent struct.
type Path []PathStep
// PathStep is a union-type for specific operations to traverse
// a value's tree structure. Users of this package never need to implement
// these types as values of this type will be returned by this package.
//
// Implementations of this interface are
// StructField, SliceIndex, MapIndex, Indirect, TypeAssertion, and Transform.
type PathStep interface {
String() string
// Type is the resulting type after performing the path step.
Type() reflect.Type
// Values is the resulting values after performing the path step.
// The type of each valid value is guaranteed to be identical to Type.
//
// In some cases, one or both may be invalid or have restrictions:
// - For StructField, both are not interface-able if the current field
// is unexported and the struct type is not explicitly permitted by
// an Exporter to traverse unexported fields.
// - For SliceIndex, one may be invalid if an element is missing from
// either the x or y slice.
// - For MapIndex, one may be invalid if an entry is missing from
// either the x or y map.
//
// The provided values must not be mutated.
Values() (vx, vy reflect.Value)
}
var (
_ PathStep = StructField{}
_ PathStep = SliceIndex{}
_ PathStep = MapIndex{}
_ PathStep = Indirect{}
_ PathStep = TypeAssertion{}
_ PathStep = Transform{}
)
func (pa *Path) push(s PathStep) {
*pa = append(*pa, s)
}
func (pa *Path) pop() {
*pa = (*pa)[:len(*pa)-1]
}
// Last returns the last PathStep in the Path.
// If the path is empty, this returns a non-nil PathStep that reports a nil Type.
func (pa Path) Last() PathStep {
return pa.Index(-1)
}
// Index returns the ith step in the Path and supports negative indexing.
// A negative index starts counting from the tail of the Path such that -1
// refers to the last step, -2 refers to the second-to-last step, and so on.
// If index is invalid, this returns a non-nil PathStep that reports a nil Type.
func (pa Path) Index(i int) PathStep {
if i < 0 {
i = len(pa) + i
}
if i < 0 || i >= len(pa) {
return pathStep{}
}
return pa[i]
}
// String returns the simplified path to a node.
// The simplified path only contains struct field accesses.
//
// For example:
//
// MyMap.MySlices.MyField
func (pa Path) String() string {
var ss []string
for _, s := range pa {
if _, ok := s.(StructField); ok {
ss = append(ss, s.String())
}
}
return strings.TrimPrefix(strings.Join(ss, ""), ".")
}
// GoString returns the path to a specific node using Go syntax.
//
// For example:
//
// (*root.MyMap["key"].(*mypkg.MyStruct).MySlices)[2][3].MyField
func (pa Path) GoString() string {
var ssPre, ssPost []string
var numIndirect int
for i, s := range pa {
var nextStep PathStep
if i+1 < len(pa) {
nextStep = pa[i+1]
}
switch s := s.(type) {
case Indirect:
numIndirect++
pPre, pPost := "(", ")"
switch nextStep.(type) {
case Indirect:
continue // Next step is indirection, so let them batch up
case StructField:
numIndirect-- // Automatic indirection on struct fields
case nil:
pPre, pPost = "", "" // Last step; no need for parenthesis
}
if numIndirect > 0 {
ssPre = append(ssPre, pPre+strings.Repeat("*", numIndirect))
ssPost = append(ssPost, pPost)
}
numIndirect = 0
continue
case Transform:
ssPre = append(ssPre, s.trans.name+"(")
ssPost = append(ssPost, ")")
continue
}
ssPost = append(ssPost, s.String())
}
for i, j := 0, len(ssPre)-1; i < j; i, j = i+1, j-1 {
ssPre[i], ssPre[j] = ssPre[j], ssPre[i]
}
return strings.Join(ssPre, "") + strings.Join(ssPost, "")
}
type pathStep struct {
typ reflect.Type
vx, vy reflect.Value
}
func (ps pathStep) Type() reflect.Type { return ps.typ }
func (ps pathStep) Values() (vx, vy reflect.Value) { return ps.vx, ps.vy }
func (ps pathStep) String() string {
if ps.typ == nil {
return "<nil>"
}
s := value.TypeString(ps.typ, false)
if s == "" || strings.ContainsAny(s, "{}\n") {
return "root" // Type too simple or complex to print
}
return fmt.Sprintf("{%s}", s)
}
// StructField represents a struct field access on a field called Name.
type StructField struct{ *structField }
type structField struct {
pathStep
name string
idx int
// These fields are used for forcibly accessing an unexported field.
// pvx, pvy, and field are only valid if unexported is true.
unexported bool
mayForce bool // Forcibly allow visibility
paddr bool // Was parent addressable?
pvx, pvy reflect.Value // Parent values (always addressable)
field reflect.StructField // Field information
}
func (sf StructField) Type() reflect.Type { return sf.typ }
func (sf StructField) Values() (vx, vy reflect.Value) {
if !sf.unexported {
return sf.vx, sf.vy // CanInterface reports true
}
// Forcibly obtain read-write access to an unexported struct field.
if sf.mayForce {
vx = retrieveUnexportedField(sf.pvx, sf.field, sf.paddr)
vy = retrieveUnexportedField(sf.pvy, sf.field, sf.paddr)
return vx, vy // CanInterface reports true
}
return sf.vx, sf.vy // CanInterface reports false
}
func (sf StructField) String() string { return fmt.Sprintf(".%s", sf.name) }
// Name is the field name.
func (sf StructField) Name() string { return sf.name }
// Index is the index of the field in the parent struct type.
// See reflect.Type.Field.
func (sf StructField) Index() int { return sf.idx }
// SliceIndex is an index operation on a slice or array at some index Key.
type SliceIndex struct{ *sliceIndex }
type sliceIndex struct {
pathStep
xkey, ykey int
isSlice bool // False for reflect.Array
}
func (si SliceIndex) Type() reflect.Type { return si.typ }
func (si SliceIndex) Values() (vx, vy reflect.Value) { return si.vx, si.vy }
func (si SliceIndex) String() string {
switch {
case si.xkey == si.ykey:
return fmt.Sprintf("[%d]", si.xkey)
case si.ykey == -1:
// [5->?] means "I don't know where X[5] went"
return fmt.Sprintf("[%d->?]", si.xkey)
case si.xkey == -1:
// [?->3] means "I don't know where Y[3] came from"
return fmt.Sprintf("[?->%d]", si.ykey)
default:
// [5->3] means "X[5] moved to Y[3]"
return fmt.Sprintf("[%d->%d]", si.xkey, si.ykey)
}
}
// Key is the index key; it may return -1 if in a split state
func (si SliceIndex) Key() int {
if si.xkey != si.ykey {
return -1
}
return si.xkey
}
// SplitKeys are the indexes for indexing into slices in the
// x and y values, respectively. These indexes may differ due to the
// insertion or removal of an element in one of the slices, causing
// all of the indexes to be shifted. If an index is -1, then that
// indicates that the element does not exist in the associated slice.
//
// Key is guaranteed to return -1 if and only if the indexes returned
// by SplitKeys are not the same. SplitKeys will never return -1 for
// both indexes.
func (si SliceIndex) SplitKeys() (ix, iy int) { return si.xkey, si.ykey }
// MapIndex is an index operation on a map at some index Key.
type MapIndex struct{ *mapIndex }
type mapIndex struct {
pathStep
key reflect.Value
}
func (mi MapIndex) Type() reflect.Type { return mi.typ }
func (mi MapIndex) Values() (vx, vy reflect.Value) { return mi.vx, mi.vy }
func (mi MapIndex) String() string { return fmt.Sprintf("[%#v]", mi.key) }
// Key is the value of the map key.
func (mi MapIndex) Key() reflect.Value { return mi.key }
// Indirect represents pointer indirection on the parent type.
type Indirect struct{ *indirect }
type indirect struct {
pathStep
}
func (in Indirect) Type() reflect.Type { return in.typ }
func (in Indirect) Values() (vx, vy reflect.Value) { return in.vx, in.vy }
func (in Indirect) String() string { return "*" }
// TypeAssertion represents a type assertion on an interface.
type TypeAssertion struct{ *typeAssertion }
type typeAssertion struct {
pathStep
}
func (ta TypeAssertion) Type() reflect.Type { return ta.typ }
func (ta TypeAssertion) Values() (vx, vy reflect.Value) { return ta.vx, ta.vy }
func (ta TypeAssertion) String() string { return fmt.Sprintf(".(%v)", value.TypeString(ta.typ, false)) }
// Transform is a transformation from the parent type to the current type.
type Transform struct{ *transform }
type transform struct {
pathStep
trans *transformer
}
func (tf Transform) Type() reflect.Type { return tf.typ }
func (tf Transform) Values() (vx, vy reflect.Value) { return tf.vx, tf.vy }
func (tf Transform) String() string { return fmt.Sprintf("%s()", tf.trans.name) }
// Name is the name of the Transformer.
func (tf Transform) Name() string { return tf.trans.name }
// Func is the function pointer to the transformer function.
func (tf Transform) Func() reflect.Value { return tf.trans.fnc }
// Option returns the originally constructed Transformer option.
// The == operator can be used to detect the exact option used.
func (tf Transform) Option() Option { return tf.trans }
// pointerPath represents a dual-stack of pointers encountered when
// recursively traversing the x and y values. This data structure supports
// detection of cycles and determining whether the cycles are equal.
// In Go, cycles can occur via pointers, slices, and maps.
//
// The pointerPath uses a map to represent a stack; where descension into a
// pointer pushes the address onto the stack, and ascension from a pointer
// pops the address from the stack. Thus, when traversing into a pointer from
// reflect.Ptr, reflect.Slice element, or reflect.Map, we can detect cycles
// by checking whether the pointer has already been visited. The cycle detection
// uses a separate stack for the x and y values.
//
// If a cycle is detected we need to determine whether the two pointers
// should be considered equal. The definition of equality chosen by Equal
// requires two graphs to have the same structure. To determine this, both the
// x and y values must have a cycle where the previous pointers were also
// encountered together as a pair.
//
// Semantically, this is equivalent to augmenting Indirect, SliceIndex, and
// MapIndex with pointer information for the x and y values.
// Suppose px and py are two pointers to compare, we then search the
// Path for whether px was ever encountered in the Path history of x, and
// similarly so with py. If either side has a cycle, the comparison is only
// equal if both px and py have a cycle resulting from the same PathStep.
//
// Using a map as a stack is more performant as we can perform cycle detection
// in O(1) instead of O(N) where N is len(Path).
type pointerPath struct {
// mx is keyed by x pointers, where the value is the associated y pointer.
mx map[value.Pointer]value.Pointer
// my is keyed by y pointers, where the value is the associated x pointer.
my map[value.Pointer]value.Pointer
}
func (p *pointerPath) Init() {
p.mx = make(map[value.Pointer]value.Pointer)
p.my = make(map[value.Pointer]value.Pointer)
}
// Push indicates intent to descend into pointers vx and vy where
// visited reports whether either has been seen before. If visited before,
// equal reports whether both pointers were encountered together.
// Pop must be called if and only if the pointers were never visited.
//
// The pointers vx and vy must be a reflect.Ptr, reflect.Slice, or reflect.Map
// and be non-nil.
func (p pointerPath) Push(vx, vy reflect.Value) (equal, visited bool) {
px := value.PointerOf(vx)
py := value.PointerOf(vy)
_, ok1 := p.mx[px]
_, ok2 := p.my[py]
if ok1 || ok2 {
equal = p.mx[px] == py && p.my[py] == px // Pointers paired together
return equal, true
}
p.mx[px] = py
p.my[py] = px
return false, false
}
// Pop ascends from pointers vx and vy.
func (p pointerPath) Pop(vx, vy reflect.Value) {
delete(p.mx, value.PointerOf(vx))
delete(p.my, value.PointerOf(vy))
}
// isExported reports whether the identifier is exported.
func isExported(id string) bool {
r, _ := utf8.DecodeRuneInString(id)
return unicode.IsUpper(r)
}

54
vendor/github.com/google/go-cmp/cmp/report.go generated vendored
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@ -1,54 +0,0 @@
// Copyright 2017, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
// defaultReporter implements the reporter interface.
//
// As Equal serially calls the PushStep, Report, and PopStep methods, the
// defaultReporter constructs a tree-based representation of the compared value
// and the result of each comparison (see valueNode).
//
// When the String method is called, the FormatDiff method transforms the
// valueNode tree into a textNode tree, which is a tree-based representation
// of the textual output (see textNode).
//
// Lastly, the textNode.String method produces the final report as a string.
type defaultReporter struct {
root *valueNode
curr *valueNode
}
func (r *defaultReporter) PushStep(ps PathStep) {
r.curr = r.curr.PushStep(ps)
if r.root == nil {
r.root = r.curr
}
}
func (r *defaultReporter) Report(rs Result) {
r.curr.Report(rs)
}
func (r *defaultReporter) PopStep() {
r.curr = r.curr.PopStep()
}
// String provides a full report of the differences detected as a structured
// literal in pseudo-Go syntax. String may only be called after the entire tree
// has been traversed.
func (r *defaultReporter) String() string {
assert(r.root != nil && r.curr == nil)
if r.root.NumDiff == 0 {
return ""
}
ptrs := new(pointerReferences)
text := formatOptions{}.FormatDiff(r.root, ptrs)
resolveReferences(text)
return text.String()
}
func assert(ok bool) {
if !ok {
panic("assertion failure")
}
}

433
vendor/github.com/google/go-cmp/cmp/report_compare.go generated vendored
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@ -1,433 +0,0 @@
// Copyright 2019, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"fmt"
"reflect"
)
// numContextRecords is the number of surrounding equal records to print.
const numContextRecords = 2
type diffMode byte
const (
diffUnknown diffMode = 0
diffIdentical diffMode = ' '
diffRemoved diffMode = '-'
diffInserted diffMode = '+'
)
type typeMode int
const (
// emitType always prints the type.
emitType typeMode = iota
// elideType never prints the type.
elideType
// autoType prints the type only for composite kinds
// (i.e., structs, slices, arrays, and maps).
autoType
)
type formatOptions struct {
// DiffMode controls the output mode of FormatDiff.
//
// If diffUnknown, then produce a diff of the x and y values.
// If diffIdentical, then emit values as if they were equal.
// If diffRemoved, then only emit x values (ignoring y values).
// If diffInserted, then only emit y values (ignoring x values).
DiffMode diffMode
// TypeMode controls whether to print the type for the current node.
//
// As a general rule of thumb, we always print the type of the next node
// after an interface, and always elide the type of the next node after
// a slice or map node.
TypeMode typeMode
// formatValueOptions are options specific to printing reflect.Values.
formatValueOptions
}
func (opts formatOptions) WithDiffMode(d diffMode) formatOptions {
opts.DiffMode = d
return opts
}
func (opts formatOptions) WithTypeMode(t typeMode) formatOptions {
opts.TypeMode = t
return opts
}
func (opts formatOptions) WithVerbosity(level int) formatOptions {
opts.VerbosityLevel = level
opts.LimitVerbosity = true
return opts
}
func (opts formatOptions) verbosity() uint {
switch {
case opts.VerbosityLevel < 0:
return 0
case opts.VerbosityLevel > 16:
return 16 // some reasonable maximum to avoid shift overflow
default:
return uint(opts.VerbosityLevel)
}
}
const maxVerbosityPreset = 6
// verbosityPreset modifies the verbosity settings given an index
// between 0 and maxVerbosityPreset, inclusive.
func verbosityPreset(opts formatOptions, i int) formatOptions {
opts.VerbosityLevel = int(opts.verbosity()) + 2*i
if i > 0 {
opts.AvoidStringer = true
}
if i >= maxVerbosityPreset {
opts.PrintAddresses = true
opts.QualifiedNames = true
}
return opts
}
// FormatDiff converts a valueNode tree into a textNode tree, where the later
// is a textual representation of the differences detected in the former.
func (opts formatOptions) FormatDiff(v *valueNode, ptrs *pointerReferences) (out textNode) {
if opts.DiffMode == diffIdentical {
opts = opts.WithVerbosity(1)
} else if opts.verbosity() < 3 {
opts = opts.WithVerbosity(3)
}
// Check whether we have specialized formatting for this node.
// This is not necessary, but helpful for producing more readable outputs.
if opts.CanFormatDiffSlice(v) {
return opts.FormatDiffSlice(v)
}
var parentKind reflect.Kind
if v.parent != nil && v.parent.TransformerName == "" {
parentKind = v.parent.Type.Kind()
}
// For leaf nodes, format the value based on the reflect.Values alone.
// As a special case, treat equal []byte as a leaf nodes.
isBytes := v.Type.Kind() == reflect.Slice && v.Type.Elem() == byteType
isEqualBytes := isBytes && v.NumDiff+v.NumIgnored+v.NumTransformed == 0
if v.MaxDepth == 0 || isEqualBytes {
switch opts.DiffMode {
case diffUnknown, diffIdentical:
// Format Equal.
if v.NumDiff == 0 {
outx := opts.FormatValue(v.ValueX, parentKind, ptrs)
outy := opts.FormatValue(v.ValueY, parentKind, ptrs)
if v.NumIgnored > 0 && v.NumSame == 0 {
return textEllipsis
} else if outx.Len() < outy.Len() {
return outx
} else {
return outy
}
}
// Format unequal.
assert(opts.DiffMode == diffUnknown)
var list textList
outx := opts.WithTypeMode(elideType).FormatValue(v.ValueX, parentKind, ptrs)
outy := opts.WithTypeMode(elideType).FormatValue(v.ValueY, parentKind, ptrs)
for i := 0; i <= maxVerbosityPreset && outx != nil && outy != nil && outx.Equal(outy); i++ {
opts2 := verbosityPreset(opts, i).WithTypeMode(elideType)
outx = opts2.FormatValue(v.ValueX, parentKind, ptrs)
outy = opts2.FormatValue(v.ValueY, parentKind, ptrs)
}
if outx != nil {
list = append(list, textRecord{Diff: '-', Value: outx})
}
if outy != nil {
list = append(list, textRecord{Diff: '+', Value: outy})
}
return opts.WithTypeMode(emitType).FormatType(v.Type, list)
case diffRemoved:
return opts.FormatValue(v.ValueX, parentKind, ptrs)
case diffInserted:
return opts.FormatValue(v.ValueY, parentKind, ptrs)
default:
panic("invalid diff mode")
}
}
// Register slice element to support cycle detection.
if parentKind == reflect.Slice {
ptrRefs := ptrs.PushPair(v.ValueX, v.ValueY, opts.DiffMode, true)
defer ptrs.Pop()
defer func() { out = wrapTrunkReferences(ptrRefs, out) }()
}
// Descend into the child value node.
if v.TransformerName != "" {
out := opts.WithTypeMode(emitType).FormatDiff(v.Value, ptrs)
out = &textWrap{Prefix: "Inverse(" + v.TransformerName + ", ", Value: out, Suffix: ")"}
return opts.FormatType(v.Type, out)
} else {
switch k := v.Type.Kind(); k {
case reflect.Struct, reflect.Array, reflect.Slice:
out = opts.formatDiffList(v.Records, k, ptrs)
out = opts.FormatType(v.Type, out)
case reflect.Map:
// Register map to support cycle detection.
ptrRefs := ptrs.PushPair(v.ValueX, v.ValueY, opts.DiffMode, false)
defer ptrs.Pop()
out = opts.formatDiffList(v.Records, k, ptrs)
out = wrapTrunkReferences(ptrRefs, out)
out = opts.FormatType(v.Type, out)
case reflect.Ptr:
// Register pointer to support cycle detection.
ptrRefs := ptrs.PushPair(v.ValueX, v.ValueY, opts.DiffMode, false)
defer ptrs.Pop()
out = opts.FormatDiff(v.Value, ptrs)
out = wrapTrunkReferences(ptrRefs, out)
out = &textWrap{Prefix: "&", Value: out}
case reflect.Interface:
out = opts.WithTypeMode(emitType).FormatDiff(v.Value, ptrs)
default:
panic(fmt.Sprintf("%v cannot have children", k))
}
return out
}
}
func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind, ptrs *pointerReferences) textNode {
// Derive record name based on the data structure kind.
var name string
var formatKey func(reflect.Value) string
switch k {
case reflect.Struct:
name = "field"
opts = opts.WithTypeMode(autoType)
formatKey = func(v reflect.Value) string { return v.String() }
case reflect.Slice, reflect.Array:
name = "element"
opts = opts.WithTypeMode(elideType)
formatKey = func(reflect.Value) string { return "" }
case reflect.Map:
name = "entry"
opts = opts.WithTypeMode(elideType)
formatKey = func(v reflect.Value) string { return formatMapKey(v, false, ptrs) }
}
maxLen := -1
if opts.LimitVerbosity {
if opts.DiffMode == diffIdentical {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
} else {
maxLen = (1 << opts.verbosity()) << 1 // 2, 4, 8, 16, 32, 64, etc...
}
opts.VerbosityLevel--
}
// Handle unification.
switch opts.DiffMode {
case diffIdentical, diffRemoved, diffInserted:
var list textList
var deferredEllipsis bool // Add final "..." to indicate records were dropped
for _, r := range recs {
if len(list) == maxLen {
deferredEllipsis = true
break
}
// Elide struct fields that are zero value.
if k == reflect.Struct {
var isZero bool
switch opts.DiffMode {
case diffIdentical:
isZero = r.Value.ValueX.IsZero() || r.Value.ValueY.IsZero()
case diffRemoved:
isZero = r.Value.ValueX.IsZero()
case diffInserted:
isZero = r.Value.ValueY.IsZero()
}
if isZero {
continue
}
}
// Elide ignored nodes.
if r.Value.NumIgnored > 0 && r.Value.NumSame+r.Value.NumDiff == 0 {
deferredEllipsis = !(k == reflect.Slice || k == reflect.Array)
if !deferredEllipsis {
list.AppendEllipsis(diffStats{})
}
continue
}
if out := opts.FormatDiff(r.Value, ptrs); out != nil {
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
}
}
if deferredEllipsis {
list.AppendEllipsis(diffStats{})
}
return &textWrap{Prefix: "{", Value: list, Suffix: "}"}
case diffUnknown:
default:
panic("invalid diff mode")
}
// Handle differencing.
var numDiffs int
var list textList
var keys []reflect.Value // invariant: len(list) == len(keys)
groups := coalesceAdjacentRecords(name, recs)
maxGroup := diffStats{Name: name}
for i, ds := range groups {
if maxLen >= 0 && numDiffs >= maxLen {
maxGroup = maxGroup.Append(ds)
continue
}
// Handle equal records.
if ds.NumDiff() == 0 {
// Compute the number of leading and trailing records to print.
var numLo, numHi int
numEqual := ds.NumIgnored + ds.NumIdentical
for numLo < numContextRecords && numLo+numHi < numEqual && i != 0 {
if r := recs[numLo].Value; r.NumIgnored > 0 && r.NumSame+r.NumDiff == 0 {
break
}
numLo++
}
for numHi < numContextRecords && numLo+numHi < numEqual && i != len(groups)-1 {
if r := recs[numEqual-numHi-1].Value; r.NumIgnored > 0 && r.NumSame+r.NumDiff == 0 {
break
}
numHi++
}
if numEqual-(numLo+numHi) == 1 && ds.NumIgnored == 0 {
numHi++ // Avoid pointless coalescing of a single equal record
}
// Format the equal values.
for _, r := range recs[:numLo] {
out := opts.WithDiffMode(diffIdentical).FormatDiff(r.Value, ptrs)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
}
if numEqual > numLo+numHi {
ds.NumIdentical -= numLo + numHi
list.AppendEllipsis(ds)
for len(keys) < len(list) {
keys = append(keys, reflect.Value{})
}
}
for _, r := range recs[numEqual-numHi : numEqual] {
out := opts.WithDiffMode(diffIdentical).FormatDiff(r.Value, ptrs)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
}
recs = recs[numEqual:]
continue
}
// Handle unequal records.
for _, r := range recs[:ds.NumDiff()] {
switch {
case opts.CanFormatDiffSlice(r.Value):
out := opts.FormatDiffSlice(r.Value)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
case r.Value.NumChildren == r.Value.MaxDepth:
outx := opts.WithDiffMode(diffRemoved).FormatDiff(r.Value, ptrs)
outy := opts.WithDiffMode(diffInserted).FormatDiff(r.Value, ptrs)
for i := 0; i <= maxVerbosityPreset && outx != nil && outy != nil && outx.Equal(outy); i++ {
opts2 := verbosityPreset(opts, i)
outx = opts2.WithDiffMode(diffRemoved).FormatDiff(r.Value, ptrs)
outy = opts2.WithDiffMode(diffInserted).FormatDiff(r.Value, ptrs)
}
if outx != nil {
list = append(list, textRecord{Diff: diffRemoved, Key: formatKey(r.Key), Value: outx})
keys = append(keys, r.Key)
}
if outy != nil {
list = append(list, textRecord{Diff: diffInserted, Key: formatKey(r.Key), Value: outy})
keys = append(keys, r.Key)
}
default:
out := opts.FormatDiff(r.Value, ptrs)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
}
}
recs = recs[ds.NumDiff():]
numDiffs += ds.NumDiff()
}
if maxGroup.IsZero() {
assert(len(recs) == 0)
} else {
list.AppendEllipsis(maxGroup)
for len(keys) < len(list) {
keys = append(keys, reflect.Value{})
}
}
assert(len(list) == len(keys))
// For maps, the default formatting logic uses fmt.Stringer which may
// produce ambiguous output. Avoid calling String to disambiguate.
if k == reflect.Map {
var ambiguous bool
seenKeys := map[string]reflect.Value{}
for i, currKey := range keys {
if currKey.IsValid() {
strKey := list[i].Key
prevKey, seen := seenKeys[strKey]
if seen && prevKey.CanInterface() && currKey.CanInterface() {
ambiguous = prevKey.Interface() != currKey.Interface()
if ambiguous {
break
}
}
seenKeys[strKey] = currKey
}
}
if ambiguous {
for i, k := range keys {
if k.IsValid() {
list[i].Key = formatMapKey(k, true, ptrs)
}
}
}
}
return &textWrap{Prefix: "{", Value: list, Suffix: "}"}
}
// coalesceAdjacentRecords coalesces the list of records into groups of
// adjacent equal, or unequal counts.
func coalesceAdjacentRecords(name string, recs []reportRecord) (groups []diffStats) {
var prevCase int // Arbitrary index into which case last occurred
lastStats := func(i int) *diffStats {
if prevCase != i {
groups = append(groups, diffStats{Name: name})
prevCase = i
}
return &groups[len(groups)-1]
}
for _, r := range recs {
switch rv := r.Value; {
case rv.NumIgnored > 0 && rv.NumSame+rv.NumDiff == 0:
lastStats(1).NumIgnored++
case rv.NumDiff == 0:
lastStats(1).NumIdentical++
case rv.NumDiff > 0 && !rv.ValueY.IsValid():
lastStats(2).NumRemoved++
case rv.NumDiff > 0 && !rv.ValueX.IsValid():
lastStats(2).NumInserted++
default:
lastStats(2).NumModified++
}
}
return groups
}

264
vendor/github.com/google/go-cmp/cmp/report_references.go generated vendored
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@ -1,264 +0,0 @@
// Copyright 2020, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"fmt"
"reflect"
"strings"
"github.com/google/go-cmp/cmp/internal/flags"
"github.com/google/go-cmp/cmp/internal/value"
)
const (
pointerDelimPrefix = "⟪"
pointerDelimSuffix = "⟫"
)
// formatPointer prints the address of the pointer.
func formatPointer(p value.Pointer, withDelims bool) string {
v := p.Uintptr()
if flags.Deterministic {
v = 0xdeadf00f // Only used for stable testing purposes
}
if withDelims {
return pointerDelimPrefix + formatHex(uint64(v)) + pointerDelimSuffix
}
return formatHex(uint64(v))
}
// pointerReferences is a stack of pointers visited so far.
type pointerReferences [][2]value.Pointer
func (ps *pointerReferences) PushPair(vx, vy reflect.Value, d diffMode, deref bool) (pp [2]value.Pointer) {
if deref && vx.IsValid() {
vx = vx.Addr()
}
if deref && vy.IsValid() {
vy = vy.Addr()
}
switch d {
case diffUnknown, diffIdentical:
pp = [2]value.Pointer{value.PointerOf(vx), value.PointerOf(vy)}
case diffRemoved:
pp = [2]value.Pointer{value.PointerOf(vx), value.Pointer{}}
case diffInserted:
pp = [2]value.Pointer{value.Pointer{}, value.PointerOf(vy)}
}
*ps = append(*ps, pp)
return pp
}
func (ps *pointerReferences) Push(v reflect.Value) (p value.Pointer, seen bool) {
p = value.PointerOf(v)
for _, pp := range *ps {
if p == pp[0] || p == pp[1] {
return p, true
}
}
*ps = append(*ps, [2]value.Pointer{p, p})
return p, false
}
func (ps *pointerReferences) Pop() {
*ps = (*ps)[:len(*ps)-1]
}
// trunkReferences is metadata for a textNode indicating that the sub-tree
// represents the value for either pointer in a pair of references.
type trunkReferences struct{ pp [2]value.Pointer }
// trunkReference is metadata for a textNode indicating that the sub-tree
// represents the value for the given pointer reference.
type trunkReference struct{ p value.Pointer }
// leafReference is metadata for a textNode indicating that the value is
// truncated as it refers to another part of the tree (i.e., a trunk).
type leafReference struct{ p value.Pointer }
func wrapTrunkReferences(pp [2]value.Pointer, s textNode) textNode {
switch {
case pp[0].IsNil():
return &textWrap{Value: s, Metadata: trunkReference{pp[1]}}
case pp[1].IsNil():
return &textWrap{Value: s, Metadata: trunkReference{pp[0]}}
case pp[0] == pp[1]:
return &textWrap{Value: s, Metadata: trunkReference{pp[0]}}
default:
return &textWrap{Value: s, Metadata: trunkReferences{pp}}
}
}
func wrapTrunkReference(p value.Pointer, printAddress bool, s textNode) textNode {
var prefix string
if printAddress {
prefix = formatPointer(p, true)
}
return &textWrap{Prefix: prefix, Value: s, Metadata: trunkReference{p}}
}
func makeLeafReference(p value.Pointer, printAddress bool) textNode {
out := &textWrap{Prefix: "(", Value: textEllipsis, Suffix: ")"}
var prefix string
if printAddress {
prefix = formatPointer(p, true)
}
return &textWrap{Prefix: prefix, Value: out, Metadata: leafReference{p}}
}
// resolveReferences walks the textNode tree searching for any leaf reference
// metadata and resolves each against the corresponding trunk references.
// Since pointer addresses in memory are not particularly readable to the user,
// it replaces each pointer value with an arbitrary and unique reference ID.
func resolveReferences(s textNode) {
var walkNodes func(textNode, func(textNode))
walkNodes = func(s textNode, f func(textNode)) {
f(s)
switch s := s.(type) {
case *textWrap:
walkNodes(s.Value, f)
case textList:
for _, r := range s {
walkNodes(r.Value, f)
}
}
}
// Collect all trunks and leaves with reference metadata.
var trunks, leaves []*textWrap
walkNodes(s, func(s textNode) {
if s, ok := s.(*textWrap); ok {
switch s.Metadata.(type) {
case leafReference:
leaves = append(leaves, s)
case trunkReference, trunkReferences:
trunks = append(trunks, s)
}
}
})
// No leaf references to resolve.
if len(leaves) == 0 {
return
}
// Collect the set of all leaf references to resolve.
leafPtrs := make(map[value.Pointer]bool)
for _, leaf := range leaves {
leafPtrs[leaf.Metadata.(leafReference).p] = true
}
// Collect the set of trunk pointers that are always paired together.
// This allows us to assign a single ID to both pointers for brevity.
// If a pointer in a pair ever occurs by itself or as a different pair,
// then the pair is broken.
pairedTrunkPtrs := make(map[value.Pointer]value.Pointer)
unpair := func(p value.Pointer) {
if !pairedTrunkPtrs[p].IsNil() {
pairedTrunkPtrs[pairedTrunkPtrs[p]] = value.Pointer{} // invalidate other half
}
pairedTrunkPtrs[p] = value.Pointer{} // invalidate this half
}
for _, trunk := range trunks {
switch p := trunk.Metadata.(type) {
case trunkReference:
unpair(p.p) // standalone pointer cannot be part of a pair
case trunkReferences:
p0, ok0 := pairedTrunkPtrs[p.pp[0]]
p1, ok1 := pairedTrunkPtrs[p.pp[1]]
switch {
case !ok0 && !ok1:
// Register the newly seen pair.
pairedTrunkPtrs[p.pp[0]] = p.pp[1]
pairedTrunkPtrs[p.pp[1]] = p.pp[0]
case ok0 && ok1 && p0 == p.pp[1] && p1 == p.pp[0]:
// Exact pair already seen; do nothing.
default:
// Pair conflicts with some other pair; break all pairs.
unpair(p.pp[0])
unpair(p.pp[1])
}
}
}
// Correlate each pointer referenced by leaves to a unique identifier,
// and print the IDs for each trunk that matches those pointers.
var nextID uint
ptrIDs := make(map[value.Pointer]uint)
newID := func() uint {
id := nextID
nextID++
return id
}
for _, trunk := range trunks {
switch p := trunk.Metadata.(type) {
case trunkReference:
if print := leafPtrs[p.p]; print {
id, ok := ptrIDs[p.p]
if !ok {
id = newID()
ptrIDs[p.p] = id
}
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id))
}
case trunkReferences:
print0 := leafPtrs[p.pp[0]]
print1 := leafPtrs[p.pp[1]]
if print0 || print1 {
id0, ok0 := ptrIDs[p.pp[0]]
id1, ok1 := ptrIDs[p.pp[1]]
isPair := pairedTrunkPtrs[p.pp[0]] == p.pp[1] && pairedTrunkPtrs[p.pp[1]] == p.pp[0]
if isPair {
var id uint
assert(ok0 == ok1) // must be seen together or not at all
if ok0 {
assert(id0 == id1) // must have the same ID
id = id0
} else {
id = newID()
ptrIDs[p.pp[0]] = id
ptrIDs[p.pp[1]] = id
}
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id))
} else {
if print0 && !ok0 {
id0 = newID()
ptrIDs[p.pp[0]] = id0
}
if print1 && !ok1 {
id1 = newID()
ptrIDs[p.pp[1]] = id1
}
switch {
case print0 && print1:
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id0)+","+formatReference(id1))
case print0:
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id0))
case print1:
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id1))
}
}
}
}
}
// Update all leaf references with the unique identifier.
for _, leaf := range leaves {
if id, ok := ptrIDs[leaf.Metadata.(leafReference).p]; ok {
leaf.Prefix = updateReferencePrefix(leaf.Prefix, formatReference(id))
}
}
}
func formatReference(id uint) string {
return fmt.Sprintf("ref#%d", id)
}
func updateReferencePrefix(prefix, ref string) string {
if prefix == "" {
return pointerDelimPrefix + ref + pointerDelimSuffix
}
suffix := strings.TrimPrefix(prefix, pointerDelimPrefix)
return pointerDelimPrefix + ref + ": " + suffix
}

414
vendor/github.com/google/go-cmp/cmp/report_reflect.go generated vendored
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@ -1,414 +0,0 @@
// Copyright 2019, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
"unicode"
"unicode/utf8"
"github.com/google/go-cmp/cmp/internal/value"
)
var (
anyType = reflect.TypeOf((*interface{})(nil)).Elem()
stringType = reflect.TypeOf((*string)(nil)).Elem()
bytesType = reflect.TypeOf((*[]byte)(nil)).Elem()
byteType = reflect.TypeOf((*byte)(nil)).Elem()
)
type formatValueOptions struct {
// AvoidStringer controls whether to avoid calling custom stringer
// methods like error.Error or fmt.Stringer.String.
AvoidStringer bool
// PrintAddresses controls whether to print the address of all pointers,
// slice elements, and maps.
PrintAddresses bool
// QualifiedNames controls whether FormatType uses the fully qualified name
// (including the full package path as opposed to just the package name).
QualifiedNames bool
// VerbosityLevel controls the amount of output to produce.
// A higher value produces more output. A value of zero or lower produces
// no output (represented using an ellipsis).
// If LimitVerbosity is false, then the level is treated as infinite.
VerbosityLevel int
// LimitVerbosity specifies that formatting should respect VerbosityLevel.
LimitVerbosity bool
}
// FormatType prints the type as if it were wrapping s.
// This may return s as-is depending on the current type and TypeMode mode.
func (opts formatOptions) FormatType(t reflect.Type, s textNode) textNode {
// Check whether to emit the type or not.
switch opts.TypeMode {
case autoType:
switch t.Kind() {
case reflect.Struct, reflect.Slice, reflect.Array, reflect.Map:
if s.Equal(textNil) {
return s
}
default:
return s
}
if opts.DiffMode == diffIdentical {
return s // elide type for identical nodes
}
case elideType:
return s
}
// Determine the type label, applying special handling for unnamed types.
typeName := value.TypeString(t, opts.QualifiedNames)
if t.Name() == "" {
// According to Go grammar, certain type literals contain symbols that
// do not strongly bind to the next lexicographical token (e.g., *T).
switch t.Kind() {
case reflect.Chan, reflect.Func, reflect.Ptr:
typeName = "(" + typeName + ")"
}
}
return &textWrap{Prefix: typeName, Value: wrapParens(s)}
}
// wrapParens wraps s with a set of parenthesis, but avoids it if the
// wrapped node itself is already surrounded by a pair of parenthesis or braces.
// It handles unwrapping one level of pointer-reference nodes.
func wrapParens(s textNode) textNode {
var refNode *textWrap
if s2, ok := s.(*textWrap); ok {
// Unwrap a single pointer reference node.
switch s2.Metadata.(type) {
case leafReference, trunkReference, trunkReferences:
refNode = s2
if s3, ok := refNode.Value.(*textWrap); ok {
s2 = s3
}
}
// Already has delimiters that make parenthesis unnecessary.
hasParens := strings.HasPrefix(s2.Prefix, "(") && strings.HasSuffix(s2.Suffix, ")")
hasBraces := strings.HasPrefix(s2.Prefix, "{") && strings.HasSuffix(s2.Suffix, "}")
if hasParens || hasBraces {
return s
}
}
if refNode != nil {
refNode.Value = &textWrap{Prefix: "(", Value: refNode.Value, Suffix: ")"}
return s
}
return &textWrap{Prefix: "(", Value: s, Suffix: ")"}
}
// FormatValue prints the reflect.Value, taking extra care to avoid descending
// into pointers already in ptrs. As pointers are visited, ptrs is also updated.
func (opts formatOptions) FormatValue(v reflect.Value, parentKind reflect.Kind, ptrs *pointerReferences) (out textNode) {
if !v.IsValid() {
return nil
}
t := v.Type()
// Check slice element for cycles.
if parentKind == reflect.Slice {
ptrRef, visited := ptrs.Push(v.Addr())
if visited {
return makeLeafReference(ptrRef, false)
}
defer ptrs.Pop()
defer func() { out = wrapTrunkReference(ptrRef, false, out) }()
}
// Check whether there is an Error or String method to call.
if !opts.AvoidStringer && v.CanInterface() {
// Avoid calling Error or String methods on nil receivers since many
// implementations crash when doing so.
if (t.Kind() != reflect.Ptr && t.Kind() != reflect.Interface) || !v.IsNil() {
var prefix, strVal string
func() {
// Swallow and ignore any panics from String or Error.
defer func() { recover() }()
switch v := v.Interface().(type) {
case error:
strVal = v.Error()
prefix = "e"
case fmt.Stringer:
strVal = v.String()
prefix = "s"
}
}()
if prefix != "" {
return opts.formatString(prefix, strVal)
}
}
}
// Check whether to explicitly wrap the result with the type.
var skipType bool
defer func() {
if !skipType {
out = opts.FormatType(t, out)
}
}()
switch t.Kind() {
case reflect.Bool:
return textLine(fmt.Sprint(v.Bool()))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return textLine(fmt.Sprint(v.Int()))
case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return textLine(fmt.Sprint(v.Uint()))
case reflect.Uint8:
if parentKind == reflect.Slice || parentKind == reflect.Array {
return textLine(formatHex(v.Uint()))
}
return textLine(fmt.Sprint(v.Uint()))
case reflect.Uintptr:
return textLine(formatHex(v.Uint()))
case reflect.Float32, reflect.Float64:
return textLine(fmt.Sprint(v.Float()))
case reflect.Complex64, reflect.Complex128:
return textLine(fmt.Sprint(v.Complex()))
case reflect.String:
return opts.formatString("", v.String())
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
return textLine(formatPointer(value.PointerOf(v), true))
case reflect.Struct:
var list textList
v := makeAddressable(v) // needed for retrieveUnexportedField
maxLen := v.NumField()
if opts.LimitVerbosity {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
opts.VerbosityLevel--
}
for i := 0; i < v.NumField(); i++ {
vv := v.Field(i)
if vv.IsZero() {
continue // Elide fields with zero values
}
if len(list) == maxLen {
list.AppendEllipsis(diffStats{})
break
}
sf := t.Field(i)
if supportExporters && !isExported(sf.Name) {
vv = retrieveUnexportedField(v, sf, true)
}
s := opts.WithTypeMode(autoType).FormatValue(vv, t.Kind(), ptrs)
list = append(list, textRecord{Key: sf.Name, Value: s})
}
return &textWrap{Prefix: "{", Value: list, Suffix: "}"}
case reflect.Slice:
if v.IsNil() {
return textNil
}
// Check whether this is a []byte of text data.
if t.Elem() == byteType {
b := v.Bytes()
isPrintSpace := func(r rune) bool { return unicode.IsPrint(r) || unicode.IsSpace(r) }
if len(b) > 0 && utf8.Valid(b) && len(bytes.TrimFunc(b, isPrintSpace)) == 0 {
out = opts.formatString("", string(b))
skipType = true
return opts.FormatType(t, out)
}
}
fallthrough
case reflect.Array:
maxLen := v.Len()
if opts.LimitVerbosity {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
opts.VerbosityLevel--
}
var list textList
for i := 0; i < v.Len(); i++ {
if len(list) == maxLen {
list.AppendEllipsis(diffStats{})
break
}
s := opts.WithTypeMode(elideType).FormatValue(v.Index(i), t.Kind(), ptrs)
list = append(list, textRecord{Value: s})
}
out = &textWrap{Prefix: "{", Value: list, Suffix: "}"}
if t.Kind() == reflect.Slice && opts.PrintAddresses {
header := fmt.Sprintf("ptr:%v, len:%d, cap:%d", formatPointer(value.PointerOf(v), false), v.Len(), v.Cap())
out = &textWrap{Prefix: pointerDelimPrefix + header + pointerDelimSuffix, Value: out}
}
return out
case reflect.Map:
if v.IsNil() {
return textNil
}
// Check pointer for cycles.
ptrRef, visited := ptrs.Push(v)
if visited {
return makeLeafReference(ptrRef, opts.PrintAddresses)
}
defer ptrs.Pop()
maxLen := v.Len()
if opts.LimitVerbosity {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
opts.VerbosityLevel--
}
var list textList
for _, k := range value.SortKeys(v.MapKeys()) {
if len(list) == maxLen {
list.AppendEllipsis(diffStats{})
break
}
sk := formatMapKey(k, false, ptrs)
sv := opts.WithTypeMode(elideType).FormatValue(v.MapIndex(k), t.Kind(), ptrs)
list = append(list, textRecord{Key: sk, Value: sv})
}
out = &textWrap{Prefix: "{", Value: list, Suffix: "}"}
out = wrapTrunkReference(ptrRef, opts.PrintAddresses, out)
return out
case reflect.Ptr:
if v.IsNil() {
return textNil
}
// Check pointer for cycles.
ptrRef, visited := ptrs.Push(v)
if visited {
out = makeLeafReference(ptrRef, opts.PrintAddresses)
return &textWrap{Prefix: "&", Value: out}
}
defer ptrs.Pop()
// Skip the name only if this is an unnamed pointer type.
// Otherwise taking the address of a value does not reproduce
// the named pointer type.
if v.Type().Name() == "" {
skipType = true // Let the underlying value print the type instead
}
out = opts.FormatValue(v.Elem(), t.Kind(), ptrs)
out = wrapTrunkReference(ptrRef, opts.PrintAddresses, out)
out = &textWrap{Prefix: "&", Value: out}
return out
case reflect.Interface:
if v.IsNil() {
return textNil
}
// Interfaces accept different concrete types,
// so configure the underlying value to explicitly print the type.
return opts.WithTypeMode(emitType).FormatValue(v.Elem(), t.Kind(), ptrs)
default:
panic(fmt.Sprintf("%v kind not handled", v.Kind()))
}
}
func (opts formatOptions) formatString(prefix, s string) textNode {
maxLen := len(s)
maxLines := strings.Count(s, "\n") + 1
if opts.LimitVerbosity {
maxLen = (1 << opts.verbosity()) << 5 // 32, 64, 128, 256, etc...
maxLines = (1 << opts.verbosity()) << 2 // 4, 8, 16, 32, 64, etc...
}
// For multiline strings, use the triple-quote syntax,
// but only use it when printing removed or inserted nodes since
// we only want the extra verbosity for those cases.
lines := strings.Split(strings.TrimSuffix(s, "\n"), "\n")
isTripleQuoted := len(lines) >= 4 && (opts.DiffMode == '-' || opts.DiffMode == '+')
for i := 0; i < len(lines) && isTripleQuoted; i++ {
lines[i] = strings.TrimPrefix(strings.TrimSuffix(lines[i], "\r"), "\r") // trim leading/trailing carriage returns for legacy Windows endline support
isPrintable := func(r rune) bool {
return unicode.IsPrint(r) || r == '\t' // specially treat tab as printable
}
line := lines[i]
isTripleQuoted = !strings.HasPrefix(strings.TrimPrefix(line, prefix), `"""`) && !strings.HasPrefix(line, "...") && strings.TrimFunc(line, isPrintable) == "" && len(line) <= maxLen
}
if isTripleQuoted {
var list textList
list = append(list, textRecord{Diff: opts.DiffMode, Value: textLine(prefix + `"""`), ElideComma: true})
for i, line := range lines {
if numElided := len(lines) - i; i == maxLines-1 && numElided > 1 {
comment := commentString(fmt.Sprintf("%d elided lines", numElided))
list = append(list, textRecord{Diff: opts.DiffMode, Value: textEllipsis, ElideComma: true, Comment: comment})
break
}
list = append(list, textRecord{Diff: opts.DiffMode, Value: textLine(line), ElideComma: true})
}
list = append(list, textRecord{Diff: opts.DiffMode, Value: textLine(prefix + `"""`), ElideComma: true})
return &textWrap{Prefix: "(", Value: list, Suffix: ")"}
}
// Format the string as a single-line quoted string.
if len(s) > maxLen+len(textEllipsis) {
return textLine(prefix + formatString(s[:maxLen]) + string(textEllipsis))
}
return textLine(prefix + formatString(s))
}
// formatMapKey formats v as if it were a map key.
// The result is guaranteed to be a single line.
func formatMapKey(v reflect.Value, disambiguate bool, ptrs *pointerReferences) string {
var opts formatOptions
opts.DiffMode = diffIdentical
opts.TypeMode = elideType
opts.PrintAddresses = disambiguate
opts.AvoidStringer = disambiguate
opts.QualifiedNames = disambiguate
opts.VerbosityLevel = maxVerbosityPreset
opts.LimitVerbosity = true
s := opts.FormatValue(v, reflect.Map, ptrs).String()
return strings.TrimSpace(s)
}
// formatString prints s as a double-quoted or backtick-quoted string.
func formatString(s string) string {
// Use quoted string if it the same length as a raw string literal.
// Otherwise, attempt to use the raw string form.
qs := strconv.Quote(s)
if len(qs) == 1+len(s)+1 {
return qs
}
// Disallow newlines to ensure output is a single line.
// Only allow printable runes for readability purposes.
rawInvalid := func(r rune) bool {
return r == '`' || r == '\n' || !(unicode.IsPrint(r) || r == '\t')
}
if utf8.ValidString(s) && strings.IndexFunc(s, rawInvalid) < 0 {
return "`" + s + "`"
}
return qs
}
// formatHex prints u as a hexadecimal integer in Go notation.
func formatHex(u uint64) string {
var f string
switch {
case u <= 0xff:
f = "0x%02x"
case u <= 0xffff:
f = "0x%04x"
case u <= 0xffffff:
f = "0x%06x"
case u <= 0xffffffff:
f = "0x%08x"
case u <= 0xffffffffff:
f = "0x%010x"
case u <= 0xffffffffffff:
f = "0x%012x"
case u <= 0xffffffffffffff:
f = "0x%014x"
case u <= 0xffffffffffffffff:
f = "0x%016x"
}
return fmt.Sprintf(f, u)
}

614
vendor/github.com/google/go-cmp/cmp/report_slices.go generated vendored
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@ -1,614 +0,0 @@
// Copyright 2019, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"bytes"
"fmt"
"math"
"reflect"
"strconv"
"strings"
"unicode"
"unicode/utf8"
"github.com/google/go-cmp/cmp/internal/diff"
)
// CanFormatDiffSlice reports whether we support custom formatting for nodes
// that are slices of primitive kinds or strings.
func (opts formatOptions) CanFormatDiffSlice(v *valueNode) bool {
switch {
case opts.DiffMode != diffUnknown:
return false // Must be formatting in diff mode
case v.NumDiff == 0:
return false // No differences detected
case !v.ValueX.IsValid() || !v.ValueY.IsValid():
return false // Both values must be valid
case v.NumIgnored > 0:
return false // Some ignore option was used
case v.NumTransformed > 0:
return false // Some transform option was used
case v.NumCompared > 1:
return false // More than one comparison was used
case v.NumCompared == 1 && v.Type.Name() != "":
// The need for cmp to check applicability of options on every element
// in a slice is a significant performance detriment for large []byte.
// The workaround is to specify Comparer(bytes.Equal),
// which enables cmp to compare []byte more efficiently.
// If they differ, we still want to provide batched diffing.
// The logic disallows named types since they tend to have their own
// String method, with nicer formatting than what this provides.
return false
}
// Check whether this is an interface with the same concrete types.
t := v.Type
vx, vy := v.ValueX, v.ValueY
if t.Kind() == reflect.Interface && !vx.IsNil() && !vy.IsNil() && vx.Elem().Type() == vy.Elem().Type() {
vx, vy = vx.Elem(), vy.Elem()
t = vx.Type()
}
// Check whether we provide specialized diffing for this type.
switch t.Kind() {
case reflect.String:
case reflect.Array, reflect.Slice:
// Only slices of primitive types have specialized handling.
switch t.Elem().Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
reflect.Bool, reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128:
default:
return false
}
// Both slice values have to be non-empty.
if t.Kind() == reflect.Slice && (vx.Len() == 0 || vy.Len() == 0) {
return false
}
// If a sufficient number of elements already differ,
// use specialized formatting even if length requirement is not met.
if v.NumDiff > v.NumSame {
return true
}
default:
return false
}
// Use specialized string diffing for longer slices or strings.
const minLength = 32
return vx.Len() >= minLength && vy.Len() >= minLength
}
// FormatDiffSlice prints a diff for the slices (or strings) represented by v.
// This provides custom-tailored logic to make printing of differences in
// textual strings and slices of primitive kinds more readable.
func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
assert(opts.DiffMode == diffUnknown)
t, vx, vy := v.Type, v.ValueX, v.ValueY
if t.Kind() == reflect.Interface {
vx, vy = vx.Elem(), vy.Elem()
t = vx.Type()
opts = opts.WithTypeMode(emitType)
}
// Auto-detect the type of the data.
var sx, sy string
var ssx, ssy []string
var isString, isMostlyText, isPureLinedText, isBinary bool
switch {
case t.Kind() == reflect.String:
sx, sy = vx.String(), vy.String()
isString = true
case t.Kind() == reflect.Slice && t.Elem() == byteType:
sx, sy = string(vx.Bytes()), string(vy.Bytes())
isString = true
case t.Kind() == reflect.Array:
// Arrays need to be addressable for slice operations to work.
vx2, vy2 := reflect.New(t).Elem(), reflect.New(t).Elem()
vx2.Set(vx)
vy2.Set(vy)
vx, vy = vx2, vy2
}
if isString {
var numTotalRunes, numValidRunes, numLines, lastLineIdx, maxLineLen int
for i, r := range sx + sy {
numTotalRunes++
if (unicode.IsPrint(r) || unicode.IsSpace(r)) && r != utf8.RuneError {
numValidRunes++
}
if r == '\n' {
if maxLineLen < i-lastLineIdx {
maxLineLen = i - lastLineIdx
}
lastLineIdx = i + 1
numLines++
}
}
isPureText := numValidRunes == numTotalRunes
isMostlyText = float64(numValidRunes) > math.Floor(0.90*float64(numTotalRunes))
isPureLinedText = isPureText && numLines >= 4 && maxLineLen <= 1024
isBinary = !isMostlyText
// Avoid diffing by lines if it produces a significantly more complex
// edit script than diffing by bytes.
if isPureLinedText {
ssx = strings.Split(sx, "\n")
ssy = strings.Split(sy, "\n")
esLines := diff.Difference(len(ssx), len(ssy), func(ix, iy int) diff.Result {
return diff.BoolResult(ssx[ix] == ssy[iy])
})
esBytes := diff.Difference(len(sx), len(sy), func(ix, iy int) diff.Result {
return diff.BoolResult(sx[ix] == sy[iy])
})
efficiencyLines := float64(esLines.Dist()) / float64(len(esLines))
efficiencyBytes := float64(esBytes.Dist()) / float64(len(esBytes))
quotedLength := len(strconv.Quote(sx + sy))
unquotedLength := len(sx) + len(sy)
escapeExpansionRatio := float64(quotedLength) / float64(unquotedLength)
isPureLinedText = efficiencyLines < 4*efficiencyBytes || escapeExpansionRatio > 1.1
}
}
// Format the string into printable records.
var list textList
var delim string
switch {
// If the text appears to be multi-lined text,
// then perform differencing across individual lines.
case isPureLinedText:
list = opts.formatDiffSlice(
reflect.ValueOf(ssx), reflect.ValueOf(ssy), 1, "line",
func(v reflect.Value, d diffMode) textRecord {
s := formatString(v.Index(0).String())
return textRecord{Diff: d, Value: textLine(s)}
},
)
delim = "\n"
// If possible, use a custom triple-quote (""") syntax for printing
// differences in a string literal. This format is more readable,
// but has edge-cases where differences are visually indistinguishable.
// This format is avoided under the following conditions:
// - A line starts with `"""`
// - A line starts with "..."
// - A line contains non-printable characters
// - Adjacent different lines differ only by whitespace
//
// For example:
//
// """
// ... // 3 identical lines
// foo
// bar
// - baz
// + BAZ
// """
isTripleQuoted := true
prevRemoveLines := map[string]bool{}
prevInsertLines := map[string]bool{}
var list2 textList
list2 = append(list2, textRecord{Value: textLine(`"""`), ElideComma: true})
for _, r := range list {
if !r.Value.Equal(textEllipsis) {
line, _ := strconv.Unquote(string(r.Value.(textLine)))
line = strings.TrimPrefix(strings.TrimSuffix(line, "\r"), "\r") // trim leading/trailing carriage returns for legacy Windows endline support
normLine := strings.Map(func(r rune) rune {
if unicode.IsSpace(r) {
return -1 // drop whitespace to avoid visually indistinguishable output
}
return r
}, line)
isPrintable := func(r rune) bool {
return unicode.IsPrint(r) || r == '\t' // specially treat tab as printable
}
isTripleQuoted = !strings.HasPrefix(line, `"""`) && !strings.HasPrefix(line, "...") && strings.TrimFunc(line, isPrintable) == ""
switch r.Diff {
case diffRemoved:
isTripleQuoted = isTripleQuoted && !prevInsertLines[normLine]
prevRemoveLines[normLine] = true
case diffInserted:
isTripleQuoted = isTripleQuoted && !prevRemoveLines[normLine]
prevInsertLines[normLine] = true
}
if !isTripleQuoted {
break
}
r.Value = textLine(line)
r.ElideComma = true
}
if !(r.Diff == diffRemoved || r.Diff == diffInserted) { // start a new non-adjacent difference group
prevRemoveLines = map[string]bool{}
prevInsertLines = map[string]bool{}
}
list2 = append(list2, r)
}
if r := list2[len(list2)-1]; r.Diff == diffIdentical && len(r.Value.(textLine)) == 0 {
list2 = list2[:len(list2)-1] // elide single empty line at the end
}
list2 = append(list2, textRecord{Value: textLine(`"""`), ElideComma: true})
if isTripleQuoted {
var out textNode = &textWrap{Prefix: "(", Value: list2, Suffix: ")"}
switch t.Kind() {
case reflect.String:
if t != stringType {
out = opts.FormatType(t, out)
}
case reflect.Slice:
// Always emit type for slices since the triple-quote syntax
// looks like a string (not a slice).
opts = opts.WithTypeMode(emitType)
out = opts.FormatType(t, out)
}
return out
}
// If the text appears to be single-lined text,
// then perform differencing in approximately fixed-sized chunks.
// The output is printed as quoted strings.
case isMostlyText:
list = opts.formatDiffSlice(
reflect.ValueOf(sx), reflect.ValueOf(sy), 64, "byte",
func(v reflect.Value, d diffMode) textRecord {
s := formatString(v.String())
return textRecord{Diff: d, Value: textLine(s)}
},
)
// If the text appears to be binary data,
// then perform differencing in approximately fixed-sized chunks.
// The output is inspired by hexdump.
case isBinary:
list = opts.formatDiffSlice(
reflect.ValueOf(sx), reflect.ValueOf(sy), 16, "byte",
func(v reflect.Value, d diffMode) textRecord {
var ss []string
for i := 0; i < v.Len(); i++ {
ss = append(ss, formatHex(v.Index(i).Uint()))
}
s := strings.Join(ss, ", ")
comment := commentString(fmt.Sprintf("%c|%v|", d, formatASCII(v.String())))
return textRecord{Diff: d, Value: textLine(s), Comment: comment}
},
)
// For all other slices of primitive types,
// then perform differencing in approximately fixed-sized chunks.
// The size of each chunk depends on the width of the element kind.
default:
var chunkSize int
if t.Elem().Kind() == reflect.Bool {
chunkSize = 16
} else {
switch t.Elem().Bits() {
case 8:
chunkSize = 16
case 16:
chunkSize = 12
case 32:
chunkSize = 8
default:
chunkSize = 8
}
}
list = opts.formatDiffSlice(
vx, vy, chunkSize, t.Elem().Kind().String(),
func(v reflect.Value, d diffMode) textRecord {
var ss []string
for i := 0; i < v.Len(); i++ {
switch t.Elem().Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
ss = append(ss, fmt.Sprint(v.Index(i).Int()))
case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
ss = append(ss, fmt.Sprint(v.Index(i).Uint()))
case reflect.Uint8, reflect.Uintptr:
ss = append(ss, formatHex(v.Index(i).Uint()))
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128:
ss = append(ss, fmt.Sprint(v.Index(i).Interface()))
}
}
s := strings.Join(ss, ", ")
return textRecord{Diff: d, Value: textLine(s)}
},
)
}
// Wrap the output with appropriate type information.
var out textNode = &textWrap{Prefix: "{", Value: list, Suffix: "}"}
if !isMostlyText {
// The "{...}" byte-sequence literal is not valid Go syntax for strings.
// Emit the type for extra clarity (e.g. "string{...}").
if t.Kind() == reflect.String {
opts = opts.WithTypeMode(emitType)
}
return opts.FormatType(t, out)
}
switch t.Kind() {
case reflect.String:
out = &textWrap{Prefix: "strings.Join(", Value: out, Suffix: fmt.Sprintf(", %q)", delim)}
if t != stringType {
out = opts.FormatType(t, out)
}
case reflect.Slice:
out = &textWrap{Prefix: "bytes.Join(", Value: out, Suffix: fmt.Sprintf(", %q)", delim)}
if t != bytesType {
out = opts.FormatType(t, out)
}
}
return out
}
// formatASCII formats s as an ASCII string.
// This is useful for printing binary strings in a semi-legible way.
func formatASCII(s string) string {
b := bytes.Repeat([]byte{'.'}, len(s))
for i := 0; i < len(s); i++ {
if ' ' <= s[i] && s[i] <= '~' {
b[i] = s[i]
}
}
return string(b)
}
func (opts formatOptions) formatDiffSlice(
vx, vy reflect.Value, chunkSize int, name string,
makeRec func(reflect.Value, diffMode) textRecord,
) (list textList) {
eq := func(ix, iy int) bool {
return vx.Index(ix).Interface() == vy.Index(iy).Interface()
}
es := diff.Difference(vx.Len(), vy.Len(), func(ix, iy int) diff.Result {
return diff.BoolResult(eq(ix, iy))
})
appendChunks := func(v reflect.Value, d diffMode) int {
n0 := v.Len()
for v.Len() > 0 {
n := chunkSize
if n > v.Len() {
n = v.Len()
}
list = append(list, makeRec(v.Slice(0, n), d))
v = v.Slice(n, v.Len())
}
return n0 - v.Len()
}
var numDiffs int
maxLen := -1
if opts.LimitVerbosity {
maxLen = (1 << opts.verbosity()) << 2 // 4, 8, 16, 32, 64, etc...
opts.VerbosityLevel--
}
groups := coalesceAdjacentEdits(name, es)
groups = coalesceInterveningIdentical(groups, chunkSize/4)
groups = cleanupSurroundingIdentical(groups, eq)
maxGroup := diffStats{Name: name}
for i, ds := range groups {
if maxLen >= 0 && numDiffs >= maxLen {
maxGroup = maxGroup.Append(ds)
continue
}
// Print equal.
if ds.NumDiff() == 0 {
// Compute the number of leading and trailing equal bytes to print.
var numLo, numHi int
numEqual := ds.NumIgnored + ds.NumIdentical
for numLo < chunkSize*numContextRecords && numLo+numHi < numEqual && i != 0 {
numLo++
}
for numHi < chunkSize*numContextRecords && numLo+numHi < numEqual && i != len(groups)-1 {
numHi++
}
if numEqual-(numLo+numHi) <= chunkSize && ds.NumIgnored == 0 {
numHi = numEqual - numLo // Avoid pointless coalescing of single equal row
}
// Print the equal bytes.
appendChunks(vx.Slice(0, numLo), diffIdentical)
if numEqual > numLo+numHi {
ds.NumIdentical -= numLo + numHi
list.AppendEllipsis(ds)
}
appendChunks(vx.Slice(numEqual-numHi, numEqual), diffIdentical)
vx = vx.Slice(numEqual, vx.Len())
vy = vy.Slice(numEqual, vy.Len())
continue
}
// Print unequal.
len0 := len(list)
nx := appendChunks(vx.Slice(0, ds.NumIdentical+ds.NumRemoved+ds.NumModified), diffRemoved)
vx = vx.Slice(nx, vx.Len())
ny := appendChunks(vy.Slice(0, ds.NumIdentical+ds.NumInserted+ds.NumModified), diffInserted)
vy = vy.Slice(ny, vy.Len())
numDiffs += len(list) - len0
}
if maxGroup.IsZero() {
assert(vx.Len() == 0 && vy.Len() == 0)
} else {
list.AppendEllipsis(maxGroup)
}
return list
}
// coalesceAdjacentEdits coalesces the list of edits into groups of adjacent
// equal or unequal counts.
//
// Example:
//
// Input: "..XXY...Y"
// Output: [
// {NumIdentical: 2},
// {NumRemoved: 2, NumInserted 1},
// {NumIdentical: 3},
// {NumInserted: 1},
// ]
func coalesceAdjacentEdits(name string, es diff.EditScript) (groups []diffStats) {
var prevMode byte
lastStats := func(mode byte) *diffStats {
if prevMode != mode {
groups = append(groups, diffStats{Name: name})
prevMode = mode
}
return &groups[len(groups)-1]
}
for _, e := range es {
switch e {
case diff.Identity:
lastStats('=').NumIdentical++
case diff.UniqueX:
lastStats('!').NumRemoved++
case diff.UniqueY:
lastStats('!').NumInserted++
case diff.Modified:
lastStats('!').NumModified++
}
}
return groups
}
// coalesceInterveningIdentical coalesces sufficiently short (<= windowSize)
// equal groups into adjacent unequal groups that currently result in a
// dual inserted/removed printout. This acts as a high-pass filter to smooth
// out high-frequency changes within the windowSize.
//
// Example:
//
// WindowSize: 16,
// Input: [
// {NumIdentical: 61}, // group 0
// {NumRemoved: 3, NumInserted: 1}, // group 1
// {NumIdentical: 6}, // ├── coalesce
// {NumInserted: 2}, // ├── coalesce
// {NumIdentical: 1}, // ├── coalesce
// {NumRemoved: 9}, // └── coalesce
// {NumIdentical: 64}, // group 2
// {NumRemoved: 3, NumInserted: 1}, // group 3
// {NumIdentical: 6}, // ├── coalesce
// {NumInserted: 2}, // ├── coalesce
// {NumIdentical: 1}, // ├── coalesce
// {NumRemoved: 7}, // ├── coalesce
// {NumIdentical: 1}, // ├── coalesce
// {NumRemoved: 2}, // └── coalesce
// {NumIdentical: 63}, // group 4
// ]
// Output: [
// {NumIdentical: 61},
// {NumIdentical: 7, NumRemoved: 12, NumInserted: 3},
// {NumIdentical: 64},
// {NumIdentical: 8, NumRemoved: 12, NumInserted: 3},
// {NumIdentical: 63},
// ]
func coalesceInterveningIdentical(groups []diffStats, windowSize int) []diffStats {
groups, groupsOrig := groups[:0], groups
for i, ds := range groupsOrig {
if len(groups) >= 2 && ds.NumDiff() > 0 {
prev := &groups[len(groups)-2] // Unequal group
curr := &groups[len(groups)-1] // Equal group
next := &groupsOrig[i] // Unequal group
hadX, hadY := prev.NumRemoved > 0, prev.NumInserted > 0
hasX, hasY := next.NumRemoved > 0, next.NumInserted > 0
if ((hadX || hasX) && (hadY || hasY)) && curr.NumIdentical <= windowSize {
*prev = prev.Append(*curr).Append(*next)
groups = groups[:len(groups)-1] // Truncate off equal group
continue
}
}
groups = append(groups, ds)
}
return groups
}
// cleanupSurroundingIdentical scans through all unequal groups, and
// moves any leading sequence of equal elements to the preceding equal group and
// moves and trailing sequence of equal elements to the succeeding equal group.
//
// This is necessary since coalesceInterveningIdentical may coalesce edit groups
// together such that leading/trailing spans of equal elements becomes possible.
// Note that this can occur even with an optimal diffing algorithm.
//
// Example:
//
// Input: [
// {NumIdentical: 61},
// {NumIdentical: 1 , NumRemoved: 11, NumInserted: 2}, // assume 3 leading identical elements
// {NumIdentical: 67},
// {NumIdentical: 7, NumRemoved: 12, NumInserted: 3}, // assume 10 trailing identical elements
// {NumIdentical: 54},
// ]
// Output: [
// {NumIdentical: 64}, // incremented by 3
// {NumRemoved: 9},
// {NumIdentical: 67},
// {NumRemoved: 9},
// {NumIdentical: 64}, // incremented by 10
// ]
func cleanupSurroundingIdentical(groups []diffStats, eq func(i, j int) bool) []diffStats {
var ix, iy int // indexes into sequence x and y
for i, ds := range groups {
// Handle equal group.
if ds.NumDiff() == 0 {
ix += ds.NumIdentical
iy += ds.NumIdentical
continue
}
// Handle unequal group.
nx := ds.NumIdentical + ds.NumRemoved + ds.NumModified
ny := ds.NumIdentical + ds.NumInserted + ds.NumModified
var numLeadingIdentical, numTrailingIdentical int
for j := 0; j < nx && j < ny && eq(ix+j, iy+j); j++ {
numLeadingIdentical++
}
for j := 0; j < nx && j < ny && eq(ix+nx-1-j, iy+ny-1-j); j++ {
numTrailingIdentical++
}
if numIdentical := numLeadingIdentical + numTrailingIdentical; numIdentical > 0 {
if numLeadingIdentical > 0 {
// Remove leading identical span from this group and
// insert it into the preceding group.
if i-1 >= 0 {
groups[i-1].NumIdentical += numLeadingIdentical
} else {
// No preceding group exists, so prepend a new group,
// but do so after we finish iterating over all groups.
defer func() {
groups = append([]diffStats{{Name: groups[0].Name, NumIdentical: numLeadingIdentical}}, groups...)
}()
}
// Increment indexes since the preceding group would have handled this.
ix += numLeadingIdentical
iy += numLeadingIdentical
}
if numTrailingIdentical > 0 {
// Remove trailing identical span from this group and
// insert it into the succeeding group.
if i+1 < len(groups) {
groups[i+1].NumIdentical += numTrailingIdentical
} else {
// No succeeding group exists, so append a new group,
// but do so after we finish iterating over all groups.
defer func() {
groups = append(groups, diffStats{Name: groups[len(groups)-1].Name, NumIdentical: numTrailingIdentical})
}()
}
// Do not increment indexes since the succeeding group will handle this.
}
// Update this group since some identical elements were removed.
nx -= numIdentical
ny -= numIdentical
groups[i] = diffStats{Name: ds.Name, NumRemoved: nx, NumInserted: ny}
}
ix += nx
iy += ny
}
return groups
}

432
vendor/github.com/google/go-cmp/cmp/report_text.go generated vendored
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@ -1,432 +0,0 @@
// Copyright 2019, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import (
"bytes"
"fmt"
"math/rand"
"strings"
"time"
"unicode/utf8"
"github.com/google/go-cmp/cmp/internal/flags"
)
var randBool = rand.New(rand.NewSource(time.Now().Unix())).Intn(2) == 0
const maxColumnLength = 80
type indentMode int
func (n indentMode) appendIndent(b []byte, d diffMode) []byte {
// The output of Diff is documented as being unstable to provide future
// flexibility in changing the output for more humanly readable reports.
// This logic intentionally introduces instability to the exact output
// so that users can detect accidental reliance on stability early on,
// rather than much later when an actual change to the format occurs.
if flags.Deterministic || randBool {
// Use regular spaces (U+0020).
switch d {
case diffUnknown, diffIdentical:
b = append(b, " "...)
case diffRemoved:
b = append(b, "- "...)
case diffInserted:
b = append(b, "+ "...)
}
} else {
// Use non-breaking spaces (U+00a0).
switch d {
case diffUnknown, diffIdentical:
b = append(b, "  "...)
case diffRemoved:
b = append(b, "- "...)
case diffInserted:
b = append(b, "+ "...)
}
}
return repeatCount(n).appendChar(b, '\t')
}
type repeatCount int
func (n repeatCount) appendChar(b []byte, c byte) []byte {
for ; n > 0; n-- {
b = append(b, c)
}
return b
}
// textNode is a simplified tree-based representation of structured text.
// Possible node types are textWrap, textList, or textLine.
type textNode interface {
// Len reports the length in bytes of a single-line version of the tree.
// Nested textRecord.Diff and textRecord.Comment fields are ignored.
Len() int
// Equal reports whether the two trees are structurally identical.
// Nested textRecord.Diff and textRecord.Comment fields are compared.
Equal(textNode) bool
// String returns the string representation of the text tree.
// It is not guaranteed that len(x.String()) == x.Len(),
// nor that x.String() == y.String() implies that x.Equal(y).
String() string
// formatCompactTo formats the contents of the tree as a single-line string
// to the provided buffer. Any nested textRecord.Diff and textRecord.Comment
// fields are ignored.
//
// However, not all nodes in the tree should be collapsed as a single-line.
// If a node can be collapsed as a single-line, it is replaced by a textLine
// node. Since the top-level node cannot replace itself, this also returns
// the current node itself.
//
// This does not mutate the receiver.
formatCompactTo([]byte, diffMode) ([]byte, textNode)
// formatExpandedTo formats the contents of the tree as a multi-line string
// to the provided buffer. In order for column alignment to operate well,
// formatCompactTo must be called before calling formatExpandedTo.
formatExpandedTo([]byte, diffMode, indentMode) []byte
}
// textWrap is a wrapper that concatenates a prefix and/or a suffix
// to the underlying node.
type textWrap struct {
Prefix string // e.g., "bytes.Buffer{"
Value textNode // textWrap | textList | textLine
Suffix string // e.g., "}"
Metadata interface{} // arbitrary metadata; has no effect on formatting
}
func (s *textWrap) Len() int {
return len(s.Prefix) + s.Value.Len() + len(s.Suffix)
}
func (s1 *textWrap) Equal(s2 textNode) bool {
if s2, ok := s2.(*textWrap); ok {
return s1.Prefix == s2.Prefix && s1.Value.Equal(s2.Value) && s1.Suffix == s2.Suffix
}
return false
}
func (s *textWrap) String() string {
var d diffMode
var n indentMode
_, s2 := s.formatCompactTo(nil, d)
b := n.appendIndent(nil, d) // Leading indent
b = s2.formatExpandedTo(b, d, n) // Main body
b = append(b, '\n') // Trailing newline
return string(b)
}
func (s *textWrap) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
n0 := len(b) // Original buffer length
b = append(b, s.Prefix...)
b, s.Value = s.Value.formatCompactTo(b, d)
b = append(b, s.Suffix...)
if _, ok := s.Value.(textLine); ok {
return b, textLine(b[n0:])
}
return b, s
}
func (s *textWrap) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
b = append(b, s.Prefix...)
b = s.Value.formatExpandedTo(b, d, n)
b = append(b, s.Suffix...)
return b
}
// textList is a comma-separated list of textWrap or textLine nodes.
// The list may be formatted as multi-lines or single-line at the discretion
// of the textList.formatCompactTo method.
type textList []textRecord
type textRecord struct {
Diff diffMode // e.g., 0 or '-' or '+'
Key string // e.g., "MyField"
Value textNode // textWrap | textLine
ElideComma bool // avoid trailing comma
Comment fmt.Stringer // e.g., "6 identical fields"
}
// AppendEllipsis appends a new ellipsis node to the list if none already
// exists at the end. If cs is non-zero it coalesces the statistics with the
// previous diffStats.
func (s *textList) AppendEllipsis(ds diffStats) {
hasStats := !ds.IsZero()
if len(*s) == 0 || !(*s)[len(*s)-1].Value.Equal(textEllipsis) {
if hasStats {
*s = append(*s, textRecord{Value: textEllipsis, ElideComma: true, Comment: ds})
} else {
*s = append(*s, textRecord{Value: textEllipsis, ElideComma: true})
}
return
}
if hasStats {
(*s)[len(*s)-1].Comment = (*s)[len(*s)-1].Comment.(diffStats).Append(ds)
}
}
func (s textList) Len() (n int) {
for i, r := range s {
n += len(r.Key)
if r.Key != "" {
n += len(": ")
}
n += r.Value.Len()
if i < len(s)-1 {
n += len(", ")
}
}
return n
}
func (s1 textList) Equal(s2 textNode) bool {
if s2, ok := s2.(textList); ok {
if len(s1) != len(s2) {
return false
}
for i := range s1 {
r1, r2 := s1[i], s2[i]
if !(r1.Diff == r2.Diff && r1.Key == r2.Key && r1.Value.Equal(r2.Value) && r1.Comment == r2.Comment) {
return false
}
}
return true
}
return false
}
func (s textList) String() string {
return (&textWrap{Prefix: "{", Value: s, Suffix: "}"}).String()
}
func (s textList) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
s = append(textList(nil), s...) // Avoid mutating original
// Determine whether we can collapse this list as a single line.
n0 := len(b) // Original buffer length
var multiLine bool
for i, r := range s {
if r.Diff == diffInserted || r.Diff == diffRemoved {
multiLine = true
}
b = append(b, r.Key...)
if r.Key != "" {
b = append(b, ": "...)
}
b, s[i].Value = r.Value.formatCompactTo(b, d|r.Diff)
if _, ok := s[i].Value.(textLine); !ok {
multiLine = true
}
if r.Comment != nil {
multiLine = true
}
if i < len(s)-1 {
b = append(b, ", "...)
}
}
// Force multi-lined output when printing a removed/inserted node that
// is sufficiently long.
if (d == diffInserted || d == diffRemoved) && len(b[n0:]) > maxColumnLength {
multiLine = true
}
if !multiLine {
return b, textLine(b[n0:])
}
return b, s
}
func (s textList) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
alignKeyLens := s.alignLens(
func(r textRecord) bool {
_, isLine := r.Value.(textLine)
return r.Key == "" || !isLine
},
func(r textRecord) int { return utf8.RuneCountInString(r.Key) },
)
alignValueLens := s.alignLens(
func(r textRecord) bool {
_, isLine := r.Value.(textLine)
return !isLine || r.Value.Equal(textEllipsis) || r.Comment == nil
},
func(r textRecord) int { return utf8.RuneCount(r.Value.(textLine)) },
)
// Format lists of simple lists in a batched form.
// If the list is sequence of only textLine values,
// then batch multiple values on a single line.
var isSimple bool
for _, r := range s {
_, isLine := r.Value.(textLine)
isSimple = r.Diff == 0 && r.Key == "" && isLine && r.Comment == nil
if !isSimple {
break
}
}
if isSimple {
n++
var batch []byte
emitBatch := func() {
if len(batch) > 0 {
b = n.appendIndent(append(b, '\n'), d)
b = append(b, bytes.TrimRight(batch, " ")...)
batch = batch[:0]
}
}
for _, r := range s {
line := r.Value.(textLine)
if len(batch)+len(line)+len(", ") > maxColumnLength {
emitBatch()
}
batch = append(batch, line...)
batch = append(batch, ", "...)
}
emitBatch()
n--
return n.appendIndent(append(b, '\n'), d)
}
// Format the list as a multi-lined output.
n++
for i, r := range s {
b = n.appendIndent(append(b, '\n'), d|r.Diff)
if r.Key != "" {
b = append(b, r.Key+": "...)
}
b = alignKeyLens[i].appendChar(b, ' ')
b = r.Value.formatExpandedTo(b, d|r.Diff, n)
if !r.ElideComma {
b = append(b, ',')
}
b = alignValueLens[i].appendChar(b, ' ')
if r.Comment != nil {
b = append(b, " // "+r.Comment.String()...)
}
}
n--
return n.appendIndent(append(b, '\n'), d)
}
func (s textList) alignLens(
skipFunc func(textRecord) bool,
lenFunc func(textRecord) int,
) []repeatCount {
var startIdx, endIdx, maxLen int
lens := make([]repeatCount, len(s))
for i, r := range s {
if skipFunc(r) {
for j := startIdx; j < endIdx && j < len(s); j++ {
lens[j] = repeatCount(maxLen - lenFunc(s[j]))
}
startIdx, endIdx, maxLen = i+1, i+1, 0
} else {
if maxLen < lenFunc(r) {
maxLen = lenFunc(r)
}
endIdx = i + 1
}
}
for j := startIdx; j < endIdx && j < len(s); j++ {
lens[j] = repeatCount(maxLen - lenFunc(s[j]))
}
return lens
}
// textLine is a single-line segment of text and is always a leaf node
// in the textNode tree.
type textLine []byte
var (
textNil = textLine("nil")
textEllipsis = textLine("...")
)
func (s textLine) Len() int {
return len(s)
}
func (s1 textLine) Equal(s2 textNode) bool {
if s2, ok := s2.(textLine); ok {
return bytes.Equal([]byte(s1), []byte(s2))
}
return false
}
func (s textLine) String() string {
return string(s)
}
func (s textLine) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
return append(b, s...), s
}
func (s textLine) formatExpandedTo(b []byte, _ diffMode, _ indentMode) []byte {
return append(b, s...)
}
type diffStats struct {
Name string
NumIgnored int
NumIdentical int
NumRemoved int
NumInserted int
NumModified int
}
func (s diffStats) IsZero() bool {
s.Name = ""
return s == diffStats{}
}
func (s diffStats) NumDiff() int {
return s.NumRemoved + s.NumInserted + s.NumModified
}
func (s diffStats) Append(ds diffStats) diffStats {
assert(s.Name == ds.Name)
s.NumIgnored += ds.NumIgnored
s.NumIdentical += ds.NumIdentical
s.NumRemoved += ds.NumRemoved
s.NumInserted += ds.NumInserted
s.NumModified += ds.NumModified
return s
}
// String prints a humanly-readable summary of coalesced records.
//
// Example:
//
// diffStats{Name: "Field", NumIgnored: 5}.String() => "5 ignored fields"
func (s diffStats) String() string {
var ss []string
var sum int
labels := [...]string{"ignored", "identical", "removed", "inserted", "modified"}
counts := [...]int{s.NumIgnored, s.NumIdentical, s.NumRemoved, s.NumInserted, s.NumModified}
for i, n := range counts {
if n > 0 {
ss = append(ss, fmt.Sprintf("%d %v", n, labels[i]))
}
sum += n
}
// Pluralize the name (adjusting for some obscure English grammar rules).
name := s.Name
if sum > 1 {
name += "s"
if strings.HasSuffix(name, "ys") {
name = name[:len(name)-2] + "ies" // e.g., "entrys" => "entries"
}
}
// Format the list according to English grammar (with Oxford comma).
switch n := len(ss); n {
case 0:
return ""
case 1, 2:
return strings.Join(ss, " and ") + " " + name
default:
return strings.Join(ss[:n-1], ", ") + ", and " + ss[n-1] + " " + name
}
}
type commentString string
func (s commentString) String() string { return string(s) }

121
vendor/github.com/google/go-cmp/cmp/report_value.go generated vendored
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@ -1,121 +0,0 @@
// Copyright 2019, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cmp
import "reflect"
// valueNode represents a single node within a report, which is a
// structured representation of the value tree, containing information
// regarding which nodes are equal or not.
type valueNode struct {
parent *valueNode
Type reflect.Type
ValueX reflect.Value
ValueY reflect.Value
// NumSame is the number of leaf nodes that are equal.
// All descendants are equal only if NumDiff is 0.
NumSame int
// NumDiff is the number of leaf nodes that are not equal.
NumDiff int
// NumIgnored is the number of leaf nodes that are ignored.
NumIgnored int
// NumCompared is the number of leaf nodes that were compared
// using an Equal method or Comparer function.
NumCompared int
// NumTransformed is the number of non-leaf nodes that were transformed.
NumTransformed int
// NumChildren is the number of transitive descendants of this node.
// This counts from zero; thus, leaf nodes have no descendants.
NumChildren int
// MaxDepth is the maximum depth of the tree. This counts from zero;
// thus, leaf nodes have a depth of zero.
MaxDepth int
// Records is a list of struct fields, slice elements, or map entries.
Records []reportRecord // If populated, implies Value is not populated
// Value is the result of a transformation, pointer indirect, of
// type assertion.
Value *valueNode // If populated, implies Records is not populated
// TransformerName is the name of the transformer.
TransformerName string // If non-empty, implies Value is populated
}
type reportRecord struct {
Key reflect.Value // Invalid for slice element
Value *valueNode
}
func (parent *valueNode) PushStep(ps PathStep) (child *valueNode) {
vx, vy := ps.Values()
child = &valueNode{parent: parent, Type: ps.Type(), ValueX: vx, ValueY: vy}
switch s := ps.(type) {
case StructField:
assert(parent.Value == nil)
parent.Records = append(parent.Records, reportRecord{Key: reflect.ValueOf(s.Name()), Value: child})
case SliceIndex:
assert(parent.Value == nil)
parent.Records = append(parent.Records, reportRecord{Value: child})
case MapIndex:
assert(parent.Value == nil)
parent.Records = append(parent.Records, reportRecord{Key: s.Key(), Value: child})
case Indirect:
assert(parent.Value == nil && parent.Records == nil)
parent.Value = child
case TypeAssertion:
assert(parent.Value == nil && parent.Records == nil)
parent.Value = child
case Transform:
assert(parent.Value == nil && parent.Records == nil)
parent.Value = child
parent.TransformerName = s.Name()
parent.NumTransformed++
default:
assert(parent == nil) // Must be the root step
}
return child
}
func (r *valueNode) Report(rs Result) {
assert(r.MaxDepth == 0) // May only be called on leaf nodes
if rs.ByIgnore() {
r.NumIgnored++
} else {
if rs.Equal() {
r.NumSame++
} else {
r.NumDiff++
}
}
assert(r.NumSame+r.NumDiff+r.NumIgnored == 1)
if rs.ByMethod() {
r.NumCompared++
}
if rs.ByFunc() {
r.NumCompared++
}
assert(r.NumCompared <= 1)
}
func (child *valueNode) PopStep() (parent *valueNode) {
if child.parent == nil {
return nil
}
parent = child.parent
parent.NumSame += child.NumSame
parent.NumDiff += child.NumDiff
parent.NumIgnored += child.NumIgnored
parent.NumCompared += child.NumCompared
parent.NumTransformed += child.NumTransformed
parent.NumChildren += child.NumChildren + 1
if parent.MaxDepth < child.MaxDepth+1 {
parent.MaxDepth = child.MaxDepth + 1
}
return parent
}

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# Ignore binaries without extension
//example/client/client
//example/server/server
//internal/v2/fakes2av2_server/fakes2av2_server
.idea/

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# Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of
experience, education, socio-economic status, nationality, personal appearance,
race, religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, or to ban temporarily or permanently any
contributor for other behaviors that they deem inappropriate, threatening,
offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. Examples of
representing a project or community include using an official project e-mail
address, posting via an official social media account, or acting as an appointed
representative at an online or offline event. Representation of a project may be
further defined and clarified by project maintainers.
This Code of Conduct also applies outside the project spaces when the Project
Steward has a reasonable belief that an individual's behavior may have a
negative impact on the project or its community.
## Conflict Resolution
We do not believe that all conflict is bad; healthy debate and disagreement
often yield positive results. However, it is never okay to be disrespectful or
to engage in behavior that violates the project’s code of conduct.
If you see someone violating the code of conduct, you are encouraged to address
the behavior directly with those involved. Many issues can be resolved quickly
and easily, and this gives people more control over the outcome of their
dispute. If you are unable to resolve the matter for any reason, or if the
behavior is threatening or harassing, report it. We are dedicated to providing
an environment where participants feel welcome and safe.
Reports should be directed to *[PROJECT STEWARD NAME(s) AND EMAIL(s)]*, the
Project Steward(s) for *[PROJECT NAME]*. It is the Project Steward’s duty to
receive and address reported violations of the code of conduct. They will then
work with a committee consisting of representatives from the Open Source
Programs Office and the Google Open Source Strategy team. If for any reason you
are uncomfortable reaching out to the Project Steward, please email
opensource@google.com.
We will investigate every complaint, but you may not receive a direct response.
We will use our discretion in determining when and how to follow up on reported
incidents, which may range from not taking action to permanent expulsion from
the project and project-sponsored spaces. We will notify the accused of the
report and provide them an opportunity to discuss it before any action is taken.
The identity of the reporter will be omitted from the details of the report
supplied to the accused. In potentially harmful situations, such as ongoing
harassment or threats to anyone's safety, we may take action without notice.
## Attribution
This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
available at
https://www.contributor-covenant.org/version/1/4/code-of-conduct.html

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# How to Contribute
We'd love to accept your patches and contributions to this project. There are
just a few small guidelines you need to follow.
## Contributor License Agreement
Contributions to this project must be accompanied by a Contributor License
Agreement (CLA). You (or your employer) retain the copyright to your
contribution; this simply gives us permission to use and redistribute your
contributions as part of the project. Head over to
<https://cla.developers.google.com/> to see your current agreements on file or
to sign a new one.
You generally only need to submit a CLA once, so if you've already submitted one
(even if it was for a different project), you probably don't need to do it
again.
## Code reviews
All submissions, including submissions by project members, require review. We
use GitHub pull requests for this purpose. Consult
[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
information on using pull requests.
## Community Guidelines
This project follows
[Google's Open Source Community Guidelines](https://opensource.google/conduct/).

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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# Secure Session Agent Client Libraries
The Secure Session Agent is a service that enables a workload to offload select
operations from the mTLS handshake and protects a workload's private key
material from exfiltration. Specifically, the workload asks the Secure Session
Agent for the TLS configuration to use during the handshake, to perform private
key operations, and to validate the peer certificate chain. The Secure Session
Agent's client libraries enable applications to communicate with the Secure
Session Agent during the TLS handshake, and to encrypt traffic to the peer
after the TLS handshake is complete.
This repository contains the source code for the Secure Session Agent's Go
client libraries, which allow gRPC-Go applications to use the Secure Session
Agent. This repository supports the Bazel and Golang build systems.
All code in this repository is experimental and subject to change. We do not
guarantee API stability at this time.

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/*
*
* Copyright 2023 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package fallback provides default implementations of fallback options when S2A fails.
package fallback
import (
"context"
"crypto/tls"
"fmt"
"net"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
)
const (
alpnProtoStrH2 = "h2"
alpnProtoStrHTTP = "http/1.1"
defaultHTTPSPort = "443"
)
// FallbackTLSConfigGRPC is a tls.Config used by the DefaultFallbackClientHandshakeFunc function.
// It supports GRPC use case, thus the alpn is set to 'h2'.
var FallbackTLSConfigGRPC = tls.Config{
MinVersion: tls.VersionTLS13,
ClientSessionCache: nil,
NextProtos: []string{alpnProtoStrH2},
}
// FallbackTLSConfigHTTP is a tls.Config used by the DefaultFallbackDialerAndAddress func.
// It supports the HTTP use case and the alpn is set to both 'http/1.1' and 'h2'.
var FallbackTLSConfigHTTP = tls.Config{
MinVersion: tls.VersionTLS13,
ClientSessionCache: nil,
NextProtos: []string{alpnProtoStrH2, alpnProtoStrHTTP},
}
// ClientHandshake establishes a TLS connection and returns it, plus its auth info.
// Inputs:
//
// targetServer: the server attempted with S2A.
// conn: the tcp connection to the server at address targetServer that was passed into S2A's ClientHandshake func.
// If fallback is successful, the `conn` should be closed.
// err: the error encountered when performing the client-side TLS handshake with S2A.
type ClientHandshake func(ctx context.Context, targetServer string, conn net.Conn, err error) (net.Conn, credentials.AuthInfo, error)
// DefaultFallbackClientHandshakeFunc returns a ClientHandshake function,
// which establishes a TLS connection to the provided fallbackAddr, returns the new connection and its auth info.
// Example use:
//
// transportCreds, _ = s2a.NewClientCreds(&s2a.ClientOptions{
// S2AAddress: s2aAddress,
// FallbackOpts: &s2a.FallbackOptions{ // optional
// FallbackClientHandshakeFunc: fallback.DefaultFallbackClientHandshakeFunc(fallbackAddr),
// },
// })
//
// The fallback server's certificate must be verifiable using OS root store.
// The fallbackAddr is expected to be a network address, e.g. example.com:port. If port is not specified,
// it uses default port 443.
// In the returned function's TLS config, ClientSessionCache is explicitly set to nil to disable TLS resumption,
// and min TLS version is set to 1.3.
func DefaultFallbackClientHandshakeFunc(fallbackAddr string) (ClientHandshake, error) {
var fallbackDialer = tls.Dialer{Config: &FallbackTLSConfigGRPC}
return defaultFallbackClientHandshakeFuncInternal(fallbackAddr, fallbackDialer.DialContext)
}
func defaultFallbackClientHandshakeFuncInternal(fallbackAddr string, dialContextFunc func(context.Context, string, string) (net.Conn, error)) (ClientHandshake, error) {
fallbackServerAddr, err := processFallbackAddr(fallbackAddr)
if err != nil {
if grpclog.V(1) {
grpclog.Infof("error processing fallback address [%s]: %v", fallbackAddr, err)
}
return nil, err
}
return func(ctx context.Context, targetServer string, conn net.Conn, s2aErr error) (net.Conn, credentials.AuthInfo, error) {
fbConn, fbErr := dialContextFunc(ctx, "tcp", fallbackServerAddr)
if fbErr != nil {
grpclog.Infof("dialing to fallback server %s failed: %v", fallbackServerAddr, fbErr)
return nil, nil, fmt.Errorf("dialing to fallback server %s failed: %v; S2A client handshake with %s error: %w", fallbackServerAddr, fbErr, targetServer, s2aErr)
}
tc, success := fbConn.(*tls.Conn)
if !success {
grpclog.Infof("the connection with fallback server is expected to be tls but isn't")
return nil, nil, fmt.Errorf("the connection with fallback server is expected to be tls but isn't; S2A client handshake with %s error: %w", targetServer, s2aErr)
}
tlsInfo := credentials.TLSInfo{
State: tc.ConnectionState(),
CommonAuthInfo: credentials.CommonAuthInfo{
SecurityLevel: credentials.PrivacyAndIntegrity,
},
}
if grpclog.V(1) {
grpclog.Infof("ConnectionState.NegotiatedProtocol: %v", tc.ConnectionState().NegotiatedProtocol)
grpclog.Infof("ConnectionState.HandshakeComplete: %v", tc.ConnectionState().HandshakeComplete)
grpclog.Infof("ConnectionState.ServerName: %v", tc.ConnectionState().ServerName)
}
conn.Close()
return fbConn, tlsInfo, nil
}, nil
}
// DefaultFallbackDialerAndAddress returns a TLS dialer and the network address to dial.
// Example use:
//
// fallbackDialer, fallbackServerAddr := fallback.DefaultFallbackDialerAndAddress(fallbackAddr)
// dialTLSContext := s2a.NewS2aDialTLSContextFunc(&s2a.ClientOptions{
// S2AAddress: s2aAddress, // required
// FallbackOpts: &s2a.FallbackOptions{
// FallbackDialer: &s2a.FallbackDialer{
// Dialer: fallbackDialer,
// ServerAddr: fallbackServerAddr,
// },
// },
// })
//
// The fallback server's certificate should be verifiable using OS root store.
// The fallbackAddr is expected to be a network address, e.g. example.com:port. If port is not specified,
// it uses default port 443.
// In the returned function's TLS config, ClientSessionCache is explicitly set to nil to disable TLS resumption,
// and min TLS version is set to 1.3.
func DefaultFallbackDialerAndAddress(fallbackAddr string) (*tls.Dialer, string, error) {
fallbackServerAddr, err := processFallbackAddr(fallbackAddr)
if err != nil {
if grpclog.V(1) {
grpclog.Infof("error processing fallback address [%s]: %v", fallbackAddr, err)
}
return nil, "", err
}
return &tls.Dialer{Config: &FallbackTLSConfigHTTP}, fallbackServerAddr, nil
}
func processFallbackAddr(fallbackAddr string) (string, error) {
var fallbackServerAddr string
var err error
if fallbackAddr == "" {
return "", fmt.Errorf("empty fallback address")
}
_, _, err = net.SplitHostPort(fallbackAddr)
if err != nil {
// fallbackAddr does not have port suffix
fallbackServerAddr = net.JoinHostPort(fallbackAddr, defaultHTTPSPort)
} else {
// FallbackServerAddr already has port suffix
fallbackServerAddr = fallbackAddr
}
return fallbackServerAddr, nil
}

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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package authinfo provides authentication and authorization information that
// results from the TLS handshake.
package authinfo
import (
"errors"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
contextpb "github.com/google/s2a-go/internal/proto/s2a_context_go_proto"
grpcpb "github.com/google/s2a-go/internal/proto/s2a_go_proto"
"google.golang.org/grpc/credentials"
)
var _ credentials.AuthInfo = (*S2AAuthInfo)(nil)
const s2aAuthType = "s2a"
// S2AAuthInfo exposes authentication and authorization information from the
// S2A session result to the gRPC stack.
type S2AAuthInfo struct {
s2aContext *contextpb.S2AContext
commonAuthInfo credentials.CommonAuthInfo
}
// NewS2AAuthInfo returns a new S2AAuthInfo object from the S2A session result.
func NewS2AAuthInfo(result *grpcpb.SessionResult) (credentials.AuthInfo, error) {
return newS2AAuthInfo(result)
}
func newS2AAuthInfo(result *grpcpb.SessionResult) (*S2AAuthInfo, error) {
if result == nil {
return nil, errors.New("NewS2aAuthInfo given nil session result")
}
return &S2AAuthInfo{
s2aContext: &contextpb.S2AContext{
ApplicationProtocol: result.GetApplicationProtocol(),
TlsVersion: result.GetState().GetTlsVersion(),
Ciphersuite: result.GetState().GetTlsCiphersuite(),
PeerIdentity: result.GetPeerIdentity(),
LocalIdentity: result.GetLocalIdentity(),
PeerCertFingerprint: result.GetPeerCertFingerprint(),
LocalCertFingerprint: result.GetLocalCertFingerprint(),
IsHandshakeResumed: result.GetState().GetIsHandshakeResumed(),
},
commonAuthInfo: credentials.CommonAuthInfo{SecurityLevel: credentials.PrivacyAndIntegrity},
}, nil
}
// AuthType returns the authentication type.
func (s *S2AAuthInfo) AuthType() string {
return s2aAuthType
}
// ApplicationProtocol returns the application protocol, e.g. "grpc".
func (s *S2AAuthInfo) ApplicationProtocol() string {
return s.s2aContext.GetApplicationProtocol()
}
// TLSVersion returns the TLS version negotiated during the handshake.
func (s *S2AAuthInfo) TLSVersion() commonpb.TLSVersion {
return s.s2aContext.GetTlsVersion()
}
// Ciphersuite returns the ciphersuite negotiated during the handshake.
func (s *S2AAuthInfo) Ciphersuite() commonpb.Ciphersuite {
return s.s2aContext.GetCiphersuite()
}
// PeerIdentity returns the authenticated identity of the peer.
func (s *S2AAuthInfo) PeerIdentity() *commonpb.Identity {
return s.s2aContext.GetPeerIdentity()
}
// LocalIdentity returns the local identity of the application used during
// session setup.
func (s *S2AAuthInfo) LocalIdentity() *commonpb.Identity {
return s.s2aContext.GetLocalIdentity()
}
// PeerCertFingerprint returns the SHA256 hash of the peer certificate used in
// the S2A handshake.
func (s *S2AAuthInfo) PeerCertFingerprint() []byte {
return s.s2aContext.GetPeerCertFingerprint()
}
// LocalCertFingerprint returns the SHA256 hash of the local certificate used
// in the S2A handshake.
func (s *S2AAuthInfo) LocalCertFingerprint() []byte {
return s.s2aContext.GetLocalCertFingerprint()
}
// IsHandshakeResumed returns true if a cached session was used to resume
// the handshake.
func (s *S2AAuthInfo) IsHandshakeResumed() bool {
return s.s2aContext.GetIsHandshakeResumed()
}
// SecurityLevel returns the security level of the connection.
func (s *S2AAuthInfo) SecurityLevel() credentials.SecurityLevel {
return s.commonAuthInfo.SecurityLevel
}

438
vendor/github.com/google/s2a-go/internal/handshaker/handshaker.go generated vendored Normal file
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@ -0,0 +1,438 @@
/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package handshaker communicates with the S2A handshaker service.
package handshaker
import (
"context"
"errors"
"fmt"
"io"
"net"
"sync"
"github.com/google/s2a-go/internal/authinfo"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
s2apb "github.com/google/s2a-go/internal/proto/s2a_go_proto"
"github.com/google/s2a-go/internal/record"
"github.com/google/s2a-go/internal/tokenmanager"
grpc "google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
)
var (
// appProtocol contains the application protocol accepted by the handshaker.
appProtocol = "grpc"
// frameLimit is the maximum size of a frame in bytes.
frameLimit = 1024 * 64
// peerNotRespondingError is the error thrown when the peer doesn't respond.
errPeerNotResponding = errors.New("peer is not responding and re-connection should be attempted")
)
// Handshaker defines a handshaker interface.
type Handshaker interface {
// ClientHandshake starts and completes a TLS handshake from the client side,
// and returns a secure connection along with additional auth information.
ClientHandshake(ctx context.Context) (net.Conn, credentials.AuthInfo, error)
// ServerHandshake starts and completes a TLS handshake from the server side,
// and returns a secure connection along with additional auth information.
ServerHandshake(ctx context.Context) (net.Conn, credentials.AuthInfo, error)
// Close terminates the Handshaker. It should be called when the handshake
// is complete.
Close() error
}
// ClientHandshakerOptions contains the options needed to configure the S2A
// handshaker service on the client-side.
type ClientHandshakerOptions struct {
// MinTLSVersion specifies the min TLS version supported by the client.
MinTLSVersion commonpb.TLSVersion
// MaxTLSVersion specifies the max TLS version supported by the client.
MaxTLSVersion commonpb.TLSVersion
// TLSCiphersuites is the ordered list of ciphersuites supported by the
// client.
TLSCiphersuites []commonpb.Ciphersuite
// TargetIdentities contains a list of allowed server identities. One of the
// target identities should match the peer identity in the handshake
// result; otherwise, the handshake fails.
TargetIdentities []*commonpb.Identity
// LocalIdentity is the local identity of the client application. If none is
// provided, then the S2A will choose the default identity.
LocalIdentity *commonpb.Identity
// TargetName is the allowed server name, which may be used for server
// authorization check by the S2A if it is provided.
TargetName string
// EnsureProcessSessionTickets allows users to wait and ensure that all
// available session tickets are sent to S2A before a process completes.
EnsureProcessSessionTickets *sync.WaitGroup
}
// ServerHandshakerOptions contains the options needed to configure the S2A
// handshaker service on the server-side.
type ServerHandshakerOptions struct {
// MinTLSVersion specifies the min TLS version supported by the server.
MinTLSVersion commonpb.TLSVersion
// MaxTLSVersion specifies the max TLS version supported by the server.
MaxTLSVersion commonpb.TLSVersion
// TLSCiphersuites is the ordered list of ciphersuites supported by the
// server.
TLSCiphersuites []commonpb.Ciphersuite
// LocalIdentities is the list of local identities that may be assumed by
// the server. If no local identity is specified, then the S2A chooses a
// default local identity.
LocalIdentities []*commonpb.Identity
}
// s2aHandshaker performs a TLS handshake using the S2A handshaker service.
type s2aHandshaker struct {
// stream is used to communicate with the S2A handshaker service.
stream s2apb.S2AService_SetUpSessionClient
// conn is the connection to the peer.
conn net.Conn
// clientOpts should be non-nil iff the handshaker is client-side.
clientOpts *ClientHandshakerOptions
// serverOpts should be non-nil iff the handshaker is server-side.
serverOpts *ServerHandshakerOptions
// isClient determines if the handshaker is client or server side.
isClient bool
// hsAddr stores the address of the S2A handshaker service.
hsAddr string
// tokenManager manages access tokens for authenticating to S2A.
tokenManager tokenmanager.AccessTokenManager
// localIdentities is the set of local identities for whom the
// tokenManager should fetch a token when preparing a request to be
// sent to S2A.
localIdentities []*commonpb.Identity
}
// NewClientHandshaker creates an s2aHandshaker instance that performs a
// client-side TLS handshake using the S2A handshaker service.
func NewClientHandshaker(ctx context.Context, conn *grpc.ClientConn, c net.Conn, hsAddr string, opts *ClientHandshakerOptions) (Handshaker, error) {
stream, err := s2apb.NewS2AServiceClient(conn).SetUpSession(ctx, grpc.WaitForReady(true))
if err != nil {
return nil, err
}
tokenManager, err := tokenmanager.NewSingleTokenAccessTokenManager()
if err != nil {
grpclog.Infof("failed to create single token access token manager: %v", err)
}
return newClientHandshaker(stream, c, hsAddr, opts, tokenManager), nil
}
func newClientHandshaker(stream s2apb.S2AService_SetUpSessionClient, c net.Conn, hsAddr string, opts *ClientHandshakerOptions, tokenManager tokenmanager.AccessTokenManager) *s2aHandshaker {
var localIdentities []*commonpb.Identity
if opts != nil {
localIdentities = []*commonpb.Identity{opts.LocalIdentity}
}
return &s2aHandshaker{
stream: stream,
conn: c,
clientOpts: opts,
isClient: true,
hsAddr: hsAddr,
tokenManager: tokenManager,
localIdentities: localIdentities,
}
}
// NewServerHandshaker creates an s2aHandshaker instance that performs a
// server-side TLS handshake using the S2A handshaker service.
func NewServerHandshaker(ctx context.Context, conn *grpc.ClientConn, c net.Conn, hsAddr string, opts *ServerHandshakerOptions) (Handshaker, error) {
stream, err := s2apb.NewS2AServiceClient(conn).SetUpSession(ctx, grpc.WaitForReady(true))
if err != nil {
return nil, err
}
tokenManager, err := tokenmanager.NewSingleTokenAccessTokenManager()
if err != nil {
grpclog.Infof("failed to create single token access token manager: %v", err)
}
return newServerHandshaker(stream, c, hsAddr, opts, tokenManager), nil
}
func newServerHandshaker(stream s2apb.S2AService_SetUpSessionClient, c net.Conn, hsAddr string, opts *ServerHandshakerOptions, tokenManager tokenmanager.AccessTokenManager) *s2aHandshaker {
var localIdentities []*commonpb.Identity
if opts != nil {
localIdentities = opts.LocalIdentities
}
return &s2aHandshaker{
stream: stream,
conn: c,
serverOpts: opts,
isClient: false,
hsAddr: hsAddr,
tokenManager: tokenManager,
localIdentities: localIdentities,
}
}
// ClientHandshake performs a client-side TLS handshake using the S2A handshaker
// service. When complete, returns a TLS connection.
func (h *s2aHandshaker) ClientHandshake(_ context.Context) (net.Conn, credentials.AuthInfo, error) {
if !h.isClient {
return nil, nil, errors.New("only handshakers created using NewClientHandshaker can perform a client-side handshake")
}
// Extract the hostname from the target name. The target name is assumed to be an authority.
hostname, _, err := net.SplitHostPort(h.clientOpts.TargetName)
if err != nil {
// If the target name had no host port or could not be parsed, use it as is.
hostname = h.clientOpts.TargetName
}
// Prepare a client start message to send to the S2A handshaker service.
req := &s2apb.SessionReq{
ReqOneof: &s2apb.SessionReq_ClientStart{
ClientStart: &s2apb.ClientSessionStartReq{
ApplicationProtocols: []string{appProtocol},
MinTlsVersion: h.clientOpts.MinTLSVersion,
MaxTlsVersion: h.clientOpts.MaxTLSVersion,
TlsCiphersuites: h.clientOpts.TLSCiphersuites,
TargetIdentities: h.clientOpts.TargetIdentities,
LocalIdentity: h.clientOpts.LocalIdentity,
TargetName: hostname,
},
},
AuthMechanisms: h.getAuthMechanisms(),
}
conn, result, err := h.setUpSession(req)
if err != nil {
return nil, nil, err
}
authInfo, err := authinfo.NewS2AAuthInfo(result)
if err != nil {
return nil, nil, err
}
return conn, authInfo, nil
}
// ServerHandshake performs a server-side TLS handshake using the S2A handshaker
// service. When complete, returns a TLS connection.
func (h *s2aHandshaker) ServerHandshake(_ context.Context) (net.Conn, credentials.AuthInfo, error) {
if h.isClient {
return nil, nil, errors.New("only handshakers created using NewServerHandshaker can perform a server-side handshake")
}
p := make([]byte, frameLimit)
n, err := h.conn.Read(p)
if err != nil {
return nil, nil, err
}
// Prepare a server start message to send to the S2A handshaker service.
req := &s2apb.SessionReq{
ReqOneof: &s2apb.SessionReq_ServerStart{
ServerStart: &s2apb.ServerSessionStartReq{
ApplicationProtocols: []string{appProtocol},
MinTlsVersion: h.serverOpts.MinTLSVersion,
MaxTlsVersion: h.serverOpts.MaxTLSVersion,
TlsCiphersuites: h.serverOpts.TLSCiphersuites,
LocalIdentities: h.serverOpts.LocalIdentities,
InBytes: p[:n],
},
},
AuthMechanisms: h.getAuthMechanisms(),
}
conn, result, err := h.setUpSession(req)
if err != nil {
return nil, nil, err
}
authInfo, err := authinfo.NewS2AAuthInfo(result)
if err != nil {
return nil, nil, err
}
return conn, authInfo, nil
}
// setUpSession proxies messages between the peer and the S2A handshaker
// service.
func (h *s2aHandshaker) setUpSession(req *s2apb.SessionReq) (net.Conn, *s2apb.SessionResult, error) {
resp, err := h.accessHandshakerService(req)
if err != nil {
return nil, nil, err
}
// Check if the returned status is an error.
if resp.GetStatus() != nil {
if got, want := resp.GetStatus().Code, uint32(codes.OK); got != want {
return nil, nil, fmt.Errorf("%v", resp.GetStatus().Details)
}
}
// Calculate the extra unread bytes from the Session. Attempting to consume
// more than the bytes sent will throw an error.
var extra []byte
if req.GetServerStart() != nil {
if resp.GetBytesConsumed() > uint32(len(req.GetServerStart().GetInBytes())) {
return nil, nil, errors.New("handshaker service consumed bytes value is out-of-bounds")
}
extra = req.GetServerStart().GetInBytes()[resp.GetBytesConsumed():]
}
result, extra, err := h.processUntilDone(resp, extra)
if err != nil {
return nil, nil, err
}
if result.GetLocalIdentity() == nil {
return nil, nil, errors.New("local identity must be populated in session result")
}
// Create a new TLS record protocol using the Session Result.
newConn, err := record.NewConn(&record.ConnParameters{
NetConn: h.conn,
Ciphersuite: result.GetState().GetTlsCiphersuite(),
TLSVersion: result.GetState().GetTlsVersion(),
InTrafficSecret: result.GetState().GetInKey(),
OutTrafficSecret: result.GetState().GetOutKey(),
UnusedBuf: extra,
InSequence: result.GetState().GetInSequence(),
OutSequence: result.GetState().GetOutSequence(),
HSAddr: h.hsAddr,
ConnectionID: result.GetState().GetConnectionId(),
LocalIdentity: result.GetLocalIdentity(),
EnsureProcessSessionTickets: h.ensureProcessSessionTickets(),
})
if err != nil {
return nil, nil, err
}
return newConn, result, nil
}
func (h *s2aHandshaker) ensureProcessSessionTickets() *sync.WaitGroup {
if h.clientOpts == nil {
return nil
}
return h.clientOpts.EnsureProcessSessionTickets
}
// accessHandshakerService sends the session request to the S2A handshaker
// service and returns the session response.
func (h *s2aHandshaker) accessHandshakerService(req *s2apb.SessionReq) (*s2apb.SessionResp, error) {
if err := h.stream.Send(req); err != nil {
return nil, err
}
resp, err := h.stream.Recv()
if err != nil {
return nil, err
}
return resp, nil
}
// processUntilDone continues proxying messages between the peer and the S2A
// handshaker service until the handshaker service returns the SessionResult at
// the end of the handshake or an error occurs.
func (h *s2aHandshaker) processUntilDone(resp *s2apb.SessionResp, unusedBytes []byte) (*s2apb.SessionResult, []byte, error) {
for {
if len(resp.OutFrames) > 0 {
if _, err := h.conn.Write(resp.OutFrames); err != nil {
return nil, nil, err
}
}
if resp.Result != nil {
return resp.Result, unusedBytes, nil
}
buf := make([]byte, frameLimit)
n, err := h.conn.Read(buf)
if err != nil && err != io.EOF {
return nil, nil, err
}
// If there is nothing to send to the handshaker service and nothing is
// received from the peer, then we are stuck. This covers the case when
// the peer is not responding. Note that handshaker service connection
// issues are caught in accessHandshakerService before we even get
// here.
if len(resp.OutFrames) == 0 && n == 0 {
return nil, nil, errPeerNotResponding
}
// Append extra bytes from the previous interaction with the handshaker
// service with the current buffer read from conn.
p := append(unusedBytes, buf[:n]...)
// From here on, p and unusedBytes point to the same slice.
resp, err = h.accessHandshakerService(&s2apb.SessionReq{
ReqOneof: &s2apb.SessionReq_Next{
Next: &s2apb.SessionNextReq{
InBytes: p,
},
},
AuthMechanisms: h.getAuthMechanisms(),
})
if err != nil {
return nil, nil, err
}
// Cache the local identity returned by S2A, if it is populated. This
// overwrites any existing local identities. This is done because, once the
// S2A has selected a local identity, then only that local identity should
// be asserted in future requests until the end of the current handshake.
if resp.GetLocalIdentity() != nil {
h.localIdentities = []*commonpb.Identity{resp.GetLocalIdentity()}
}
// Set unusedBytes based on the handshaker service response.
if resp.GetBytesConsumed() > uint32(len(p)) {
return nil, nil, errors.New("handshaker service consumed bytes value is out-of-bounds")
}
unusedBytes = p[resp.GetBytesConsumed():]
}
}
// Close shuts down the handshaker and the stream to the S2A handshaker service
// when the handshake is complete. It should be called when the caller obtains
// the secure connection at the end of the handshake.
func (h *s2aHandshaker) Close() error {
return h.stream.CloseSend()
}
func (h *s2aHandshaker) getAuthMechanisms() []*s2apb.AuthenticationMechanism {
if h.tokenManager == nil {
return nil
}
// First handle the special case when no local identities have been provided
// by the application. In this case, an AuthenticationMechanism with no local
// identity will be sent.
if len(h.localIdentities) == 0 {
token, err := h.tokenManager.DefaultToken()
if err != nil {
grpclog.Infof("unable to get token for empty local identity: %v", err)
return nil
}
return []*s2apb.AuthenticationMechanism{
{
MechanismOneof: &s2apb.AuthenticationMechanism_Token{
Token: token,
},
},
}
}
// Next, handle the case where the application (or the S2A) has provided
// one or more local identities.
var authMechanisms []*s2apb.AuthenticationMechanism
for _, localIdentity := range h.localIdentities {
token, err := h.tokenManager.Token(localIdentity)
if err != nil {
grpclog.Infof("unable to get token for local identity %v: %v", localIdentity, err)
continue
}
authMechanism := &s2apb.AuthenticationMechanism{
Identity: localIdentity,
MechanismOneof: &s2apb.AuthenticationMechanism_Token{
Token: token,
},
}
authMechanisms = append(authMechanisms, authMechanism)
}
return authMechanisms
}

99
vendor/github.com/google/s2a-go/internal/handshaker/service/service.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package service is a utility for calling the S2A handshaker service.
package service
import (
"context"
"net"
"os"
"strings"
"sync"
"time"
"google.golang.org/appengine"
"google.golang.org/appengine/socket"
grpc "google.golang.org/grpc"
"google.golang.org/grpc/grpclog"
)
// An environment variable, if true, opportunistically use AppEngine-specific dialer to call S2A.
const enableAppEngineDialerEnv = "S2A_ENABLE_APP_ENGINE_DIALER"
var (
// appEngineDialerHook is an AppEngine-specific dial option that is set
// during init time. If nil, then the application is not running on Google
// AppEngine.
appEngineDialerHook func(context.Context) grpc.DialOption
// mu guards hsConnMap and hsDialer.
mu sync.Mutex
// hsConnMap represents a mapping from an S2A handshaker service address
// to a corresponding connection to an S2A handshaker service instance.
hsConnMap = make(map[string]*grpc.ClientConn)
// hsDialer will be reassigned in tests.
hsDialer = grpc.Dial
)
func init() {
if !appengine.IsAppEngine() && !appengine.IsDevAppServer() {
return
}
appEngineDialerHook = func(ctx context.Context) grpc.DialOption {
return grpc.WithDialer(func(addr string, timeout time.Duration) (net.Conn, error) {
return socket.DialTimeout(ctx, "tcp", addr, timeout)
})
}
}
// Dial dials the S2A handshaker service. If a connection has already been
// established, this function returns it. Otherwise, a new connection is
// created.
func Dial(handshakerServiceAddress string) (*grpc.ClientConn, error) {
mu.Lock()
defer mu.Unlock()
hsConn, ok := hsConnMap[handshakerServiceAddress]
if !ok {
// Create a new connection to the S2A handshaker service. Note that
// this connection stays open until the application is closed.
grpcOpts := []grpc.DialOption{
grpc.WithInsecure(),
}
if enableAppEngineDialer() && appEngineDialerHook != nil {
if grpclog.V(1) {
grpclog.Info("Using AppEngine-specific dialer to talk to S2A.")
}
grpcOpts = append(grpcOpts, appEngineDialerHook(context.Background()))
}
var err error
hsConn, err = hsDialer(handshakerServiceAddress, grpcOpts...)
if err != nil {
return nil, err
}
hsConnMap[handshakerServiceAddress] = hsConn
}
return hsConn, nil
}
func enableAppEngineDialer() bool {
if strings.ToLower(os.Getenv(enableAppEngineDialerEnv)) == "true" {
return true
}
return false
}

389
vendor/github.com/google/s2a-go/internal/proto/common_go_proto/common.pb.go generated vendored Normal file
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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.30.0
// protoc v3.21.12
// source: internal/proto/common/common.proto
package common_go_proto
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The ciphersuites supported by S2A. The name determines the confidentiality,
// and authentication ciphers as well as the hash algorithm used for PRF in
// TLS 1.2 or HKDF in TLS 1.3. Thus, the components of the name are:
// - AEAD -- for encryption and authentication, e.g., AES_128_GCM.
// - Hash algorithm -- used in PRF or HKDF, e.g., SHA256.
type Ciphersuite int32
const (
Ciphersuite_AES_128_GCM_SHA256 Ciphersuite = 0
Ciphersuite_AES_256_GCM_SHA384 Ciphersuite = 1
Ciphersuite_CHACHA20_POLY1305_SHA256 Ciphersuite = 2
)
// Enum value maps for Ciphersuite.
var (
Ciphersuite_name = map[int32]string{
0: "AES_128_GCM_SHA256",
1: "AES_256_GCM_SHA384",
2: "CHACHA20_POLY1305_SHA256",
}
Ciphersuite_value = map[string]int32{
"AES_128_GCM_SHA256": 0,
"AES_256_GCM_SHA384": 1,
"CHACHA20_POLY1305_SHA256": 2,
}
)
func (x Ciphersuite) Enum() *Ciphersuite {
p := new(Ciphersuite)
*p = x
return p
}
func (x Ciphersuite) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (Ciphersuite) Descriptor() protoreflect.EnumDescriptor {
return file_internal_proto_common_common_proto_enumTypes[0].Descriptor()
}
func (Ciphersuite) Type() protoreflect.EnumType {
return &file_internal_proto_common_common_proto_enumTypes[0]
}
func (x Ciphersuite) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use Ciphersuite.Descriptor instead.
func (Ciphersuite) EnumDescriptor() ([]byte, []int) {
return file_internal_proto_common_common_proto_rawDescGZIP(), []int{0}
}
// The TLS versions supported by S2A's handshaker module.
type TLSVersion int32
const (
TLSVersion_TLS1_2 TLSVersion = 0
TLSVersion_TLS1_3 TLSVersion = 1
)
// Enum value maps for TLSVersion.
var (
TLSVersion_name = map[int32]string{
0: "TLS1_2",
1: "TLS1_3",
}
TLSVersion_value = map[string]int32{
"TLS1_2": 0,
"TLS1_3": 1,
}
)
func (x TLSVersion) Enum() *TLSVersion {
p := new(TLSVersion)
*p = x
return p
}
func (x TLSVersion) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (TLSVersion) Descriptor() protoreflect.EnumDescriptor {
return file_internal_proto_common_common_proto_enumTypes[1].Descriptor()
}
func (TLSVersion) Type() protoreflect.EnumType {
return &file_internal_proto_common_common_proto_enumTypes[1]
}
func (x TLSVersion) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use TLSVersion.Descriptor instead.
func (TLSVersion) EnumDescriptor() ([]byte, []int) {
return file_internal_proto_common_common_proto_rawDescGZIP(), []int{1}
}
type Identity struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Types that are assignable to IdentityOneof:
//
// *Identity_SpiffeId
// *Identity_Hostname
// *Identity_Uid
// *Identity_MdbUsername
// *Identity_GaiaId
IdentityOneof isIdentity_IdentityOneof `protobuf_oneof:"identity_oneof"`
// Additional identity-specific attributes.
Attributes map[string]string `protobuf:"bytes,3,rep,name=attributes,proto3" json:"attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
}
func (x *Identity) Reset() {
*x = Identity{}
if protoimpl.UnsafeEnabled {
mi := &file_internal_proto_common_common_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Identity) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Identity) ProtoMessage() {}
func (x *Identity) ProtoReflect() protoreflect.Message {
mi := &file_internal_proto_common_common_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Identity.ProtoReflect.Descriptor instead.
func (*Identity) Descriptor() ([]byte, []int) {
return file_internal_proto_common_common_proto_rawDescGZIP(), []int{0}
}
func (m *Identity) GetIdentityOneof() isIdentity_IdentityOneof {
if m != nil {
return m.IdentityOneof
}
return nil
}
func (x *Identity) GetSpiffeId() string {
if x, ok := x.GetIdentityOneof().(*Identity_SpiffeId); ok {
return x.SpiffeId
}
return ""
}
func (x *Identity) GetHostname() string {
if x, ok := x.GetIdentityOneof().(*Identity_Hostname); ok {
return x.Hostname
}
return ""
}
func (x *Identity) GetUid() string {
if x, ok := x.GetIdentityOneof().(*Identity_Uid); ok {
return x.Uid
}
return ""
}
func (x *Identity) GetMdbUsername() string {
if x, ok := x.GetIdentityOneof().(*Identity_MdbUsername); ok {
return x.MdbUsername
}
return ""
}
func (x *Identity) GetGaiaId() string {
if x, ok := x.GetIdentityOneof().(*Identity_GaiaId); ok {
return x.GaiaId
}
return ""
}
func (x *Identity) GetAttributes() map[string]string {
if x != nil {
return x.Attributes
}
return nil
}
type isIdentity_IdentityOneof interface {
isIdentity_IdentityOneof()
}
type Identity_SpiffeId struct {
// The SPIFFE ID of a connection endpoint.
SpiffeId string `protobuf:"bytes,1,opt,name=spiffe_id,json=spiffeId,proto3,oneof"`
}
type Identity_Hostname struct {
// The hostname of a connection endpoint.
Hostname string `protobuf:"bytes,2,opt,name=hostname,proto3,oneof"`
}
type Identity_Uid struct {
// The UID of a connection endpoint.
Uid string `protobuf:"bytes,4,opt,name=uid,proto3,oneof"`
}
type Identity_MdbUsername struct {
// The MDB username of a connection endpoint.
MdbUsername string `protobuf:"bytes,5,opt,name=mdb_username,json=mdbUsername,proto3,oneof"`
}
type Identity_GaiaId struct {
// The Gaia ID of a connection endpoint.
GaiaId string `protobuf:"bytes,6,opt,name=gaia_id,json=gaiaId,proto3,oneof"`
}
func (*Identity_SpiffeId) isIdentity_IdentityOneof() {}
func (*Identity_Hostname) isIdentity_IdentityOneof() {}
func (*Identity_Uid) isIdentity_IdentityOneof() {}
func (*Identity_MdbUsername) isIdentity_IdentityOneof() {}
func (*Identity_GaiaId) isIdentity_IdentityOneof() {}
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var (
file_internal_proto_common_common_proto_rawDescOnce sync.Once
file_internal_proto_common_common_proto_rawDescData = file_internal_proto_common_common_proto_rawDesc
)
func file_internal_proto_common_common_proto_rawDescGZIP() []byte {
file_internal_proto_common_common_proto_rawDescOnce.Do(func() {
file_internal_proto_common_common_proto_rawDescData = protoimpl.X.CompressGZIP(file_internal_proto_common_common_proto_rawDescData)
})
return file_internal_proto_common_common_proto_rawDescData
}
var file_internal_proto_common_common_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
var file_internal_proto_common_common_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_internal_proto_common_common_proto_goTypes = []interface{}{
(Ciphersuite)(0), // 0: s2a.proto.Ciphersuite
(TLSVersion)(0), // 1: s2a.proto.TLSVersion
(*Identity)(nil), // 2: s2a.proto.Identity
nil, // 3: s2a.proto.Identity.AttributesEntry
}
var file_internal_proto_common_common_proto_depIdxs = []int32{
3, // 0: s2a.proto.Identity.attributes:type_name -> s2a.proto.Identity.AttributesEntry
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_internal_proto_common_common_proto_init() }
func file_internal_proto_common_common_proto_init() {
if File_internal_proto_common_common_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_internal_proto_common_common_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Identity); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
file_internal_proto_common_common_proto_msgTypes[0].OneofWrappers = []interface{}{
(*Identity_SpiffeId)(nil),
(*Identity_Hostname)(nil),
(*Identity_Uid)(nil),
(*Identity_MdbUsername)(nil),
(*Identity_GaiaId)(nil),
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_internal_proto_common_common_proto_rawDesc,
NumEnums: 2,
NumMessages: 2,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_internal_proto_common_common_proto_goTypes,
DependencyIndexes: file_internal_proto_common_common_proto_depIdxs,
EnumInfos: file_internal_proto_common_common_proto_enumTypes,
MessageInfos: file_internal_proto_common_common_proto_msgTypes,
}.Build()
File_internal_proto_common_common_proto = out.File
file_internal_proto_common_common_proto_rawDesc = nil
file_internal_proto_common_common_proto_goTypes = nil
file_internal_proto_common_common_proto_depIdxs = nil
}

267
vendor/github.com/google/s2a-go/internal/proto/s2a_context_go_proto/s2a_context.pb.go generated vendored Normal file
View file

@ -0,0 +1,267 @@
// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.30.0
// protoc v3.21.12
// source: internal/proto/s2a_context/s2a_context.proto
package s2a_context_go_proto
import (
common_go_proto "github.com/google/s2a-go/internal/proto/common_go_proto"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type S2AContext struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The application protocol negotiated for this connection, e.g., 'grpc'.
ApplicationProtocol string `protobuf:"bytes,1,opt,name=application_protocol,json=applicationProtocol,proto3" json:"application_protocol,omitempty"`
// The TLS version number that the S2A's handshaker module used to set up the
// session.
TlsVersion common_go_proto.TLSVersion `protobuf:"varint,2,opt,name=tls_version,json=tlsVersion,proto3,enum=s2a.proto.TLSVersion" json:"tls_version,omitempty"`
// The TLS ciphersuite negotiated by the S2A's handshaker module.
Ciphersuite common_go_proto.Ciphersuite `protobuf:"varint,3,opt,name=ciphersuite,proto3,enum=s2a.proto.Ciphersuite" json:"ciphersuite,omitempty"`
// The authenticated identity of the peer.
PeerIdentity *common_go_proto.Identity `protobuf:"bytes,4,opt,name=peer_identity,json=peerIdentity,proto3" json:"peer_identity,omitempty"`
// The local identity used during session setup. This could be:
// - The local identity that the client specifies in ClientSessionStartReq.
// - One of the local identities that the server specifies in
// ServerSessionStartReq.
// - If neither client or server specifies local identities, the S2A picks the
// default one. In this case, this field will contain that identity.
LocalIdentity *common_go_proto.Identity `protobuf:"bytes,5,opt,name=local_identity,json=localIdentity,proto3" json:"local_identity,omitempty"`
// The SHA256 hash of the peer certificate used in the handshake.
PeerCertFingerprint []byte `protobuf:"bytes,6,opt,name=peer_cert_fingerprint,json=peerCertFingerprint,proto3" json:"peer_cert_fingerprint,omitempty"`
// The SHA256 hash of the local certificate used in the handshake.
LocalCertFingerprint []byte `protobuf:"bytes,7,opt,name=local_cert_fingerprint,json=localCertFingerprint,proto3" json:"local_cert_fingerprint,omitempty"`
// Set to true if a cached session was reused to resume the handshake.
IsHandshakeResumed bool `protobuf:"varint,8,opt,name=is_handshake_resumed,json=isHandshakeResumed,proto3" json:"is_handshake_resumed,omitempty"`
}
func (x *S2AContext) Reset() {
*x = S2AContext{}
if protoimpl.UnsafeEnabled {
mi := &file_internal_proto_s2a_context_s2a_context_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *S2AContext) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*S2AContext) ProtoMessage() {}
func (x *S2AContext) ProtoReflect() protoreflect.Message {
mi := &file_internal_proto_s2a_context_s2a_context_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use S2AContext.ProtoReflect.Descriptor instead.
func (*S2AContext) Descriptor() ([]byte, []int) {
return file_internal_proto_s2a_context_s2a_context_proto_rawDescGZIP(), []int{0}
}
func (x *S2AContext) GetApplicationProtocol() string {
if x != nil {
return x.ApplicationProtocol
}
return ""
}
func (x *S2AContext) GetTlsVersion() common_go_proto.TLSVersion {
if x != nil {
return x.TlsVersion
}
return common_go_proto.TLSVersion(0)
}
func (x *S2AContext) GetCiphersuite() common_go_proto.Ciphersuite {
if x != nil {
return x.Ciphersuite
}
return common_go_proto.Ciphersuite(0)
}
func (x *S2AContext) GetPeerIdentity() *common_go_proto.Identity {
if x != nil {
return x.PeerIdentity
}
return nil
}
func (x *S2AContext) GetLocalIdentity() *common_go_proto.Identity {
if x != nil {
return x.LocalIdentity
}
return nil
}
func (x *S2AContext) GetPeerCertFingerprint() []byte {
if x != nil {
return x.PeerCertFingerprint
}
return nil
}
func (x *S2AContext) GetLocalCertFingerprint() []byte {
if x != nil {
return x.LocalCertFingerprint
}
return nil
}
func (x *S2AContext) GetIsHandshakeResumed() bool {
if x != nil {
return x.IsHandshakeResumed
}
return false
}
var File_internal_proto_s2a_context_s2a_context_proto protoreflect.FileDescriptor
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}
var (
file_internal_proto_s2a_context_s2a_context_proto_rawDescOnce sync.Once
file_internal_proto_s2a_context_s2a_context_proto_rawDescData = file_internal_proto_s2a_context_s2a_context_proto_rawDesc
)
func file_internal_proto_s2a_context_s2a_context_proto_rawDescGZIP() []byte {
file_internal_proto_s2a_context_s2a_context_proto_rawDescOnce.Do(func() {
file_internal_proto_s2a_context_s2a_context_proto_rawDescData = protoimpl.X.CompressGZIP(file_internal_proto_s2a_context_s2a_context_proto_rawDescData)
})
return file_internal_proto_s2a_context_s2a_context_proto_rawDescData
}
var file_internal_proto_s2a_context_s2a_context_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_internal_proto_s2a_context_s2a_context_proto_goTypes = []interface{}{
(*S2AContext)(nil), // 0: s2a.proto.S2AContext
(common_go_proto.TLSVersion)(0), // 1: s2a.proto.TLSVersion
(common_go_proto.Ciphersuite)(0), // 2: s2a.proto.Ciphersuite
(*common_go_proto.Identity)(nil), // 3: s2a.proto.Identity
}
var file_internal_proto_s2a_context_s2a_context_proto_depIdxs = []int32{
1, // 0: s2a.proto.S2AContext.tls_version:type_name -> s2a.proto.TLSVersion
2, // 1: s2a.proto.S2AContext.ciphersuite:type_name -> s2a.proto.Ciphersuite
3, // 2: s2a.proto.S2AContext.peer_identity:type_name -> s2a.proto.Identity
3, // 3: s2a.proto.S2AContext.local_identity:type_name -> s2a.proto.Identity
4, // [4:4] is the sub-list for method output_type
4, // [4:4] is the sub-list for method input_type
4, // [4:4] is the sub-list for extension type_name
4, // [4:4] is the sub-list for extension extendee
0, // [0:4] is the sub-list for field type_name
}
func init() { file_internal_proto_s2a_context_s2a_context_proto_init() }
func file_internal_proto_s2a_context_s2a_context_proto_init() {
if File_internal_proto_s2a_context_s2a_context_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_internal_proto_s2a_context_s2a_context_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*S2AContext); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_internal_proto_s2a_context_s2a_context_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_internal_proto_s2a_context_s2a_context_proto_goTypes,
DependencyIndexes: file_internal_proto_s2a_context_s2a_context_proto_depIdxs,
MessageInfos: file_internal_proto_s2a_context_s2a_context_proto_msgTypes,
}.Build()
File_internal_proto_s2a_context_s2a_context_proto = out.File
file_internal_proto_s2a_context_s2a_context_proto_rawDesc = nil
file_internal_proto_s2a_context_s2a_context_proto_goTypes = nil
file_internal_proto_s2a_context_s2a_context_proto_depIdxs = nil
}

1377
vendor/github.com/google/s2a-go/internal/proto/s2a_go_proto/s2a.pb.go generated vendored Normal file
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173
vendor/github.com/google/s2a-go/internal/proto/s2a_go_proto/s2a_grpc.pb.go generated vendored Normal file
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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
// versions:
// - protoc-gen-go-grpc v1.3.0
// - protoc v3.21.12
// source: internal/proto/s2a/s2a.proto
package s2a_go_proto
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
// Requires gRPC-Go v1.32.0 or later.
const _ = grpc.SupportPackageIsVersion7
const (
S2AService_SetUpSession_FullMethodName = "/s2a.proto.S2AService/SetUpSession"
)
// S2AServiceClient is the client API for S2AService service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type S2AServiceClient interface {
// S2A service accepts a stream of session setup requests and returns a stream
// of session setup responses. The client of this service is expected to send
// exactly one client_start or server_start message followed by at least one
// next message. Applications running TLS clients can send requests with
// resumption_ticket messages only after the session is successfully set up.
//
// Every time S2A client sends a request, this service sends a response.
// However, clients do not have to wait for service response before sending
// the next request.
SetUpSession(ctx context.Context, opts ...grpc.CallOption) (S2AService_SetUpSessionClient, error)
}
type s2AServiceClient struct {
cc grpc.ClientConnInterface
}
func NewS2AServiceClient(cc grpc.ClientConnInterface) S2AServiceClient {
return &s2AServiceClient{cc}
}
func (c *s2AServiceClient) SetUpSession(ctx context.Context, opts ...grpc.CallOption) (S2AService_SetUpSessionClient, error) {
stream, err := c.cc.NewStream(ctx, &S2AService_ServiceDesc.Streams[0], S2AService_SetUpSession_FullMethodName, opts...)
if err != nil {
return nil, err
}
x := &s2AServiceSetUpSessionClient{stream}
return x, nil
}
type S2AService_SetUpSessionClient interface {
Send(*SessionReq) error
Recv() (*SessionResp, error)
grpc.ClientStream
}
type s2AServiceSetUpSessionClient struct {
grpc.ClientStream
}
func (x *s2AServiceSetUpSessionClient) Send(m *SessionReq) error {
return x.ClientStream.SendMsg(m)
}
func (x *s2AServiceSetUpSessionClient) Recv() (*SessionResp, error) {
m := new(SessionResp)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// S2AServiceServer is the server API for S2AService service.
// All implementations must embed UnimplementedS2AServiceServer
// for forward compatibility
type S2AServiceServer interface {
// S2A service accepts a stream of session setup requests and returns a stream
// of session setup responses. The client of this service is expected to send
// exactly one client_start or server_start message followed by at least one
// next message. Applications running TLS clients can send requests with
// resumption_ticket messages only after the session is successfully set up.
//
// Every time S2A client sends a request, this service sends a response.
// However, clients do not have to wait for service response before sending
// the next request.
SetUpSession(S2AService_SetUpSessionServer) error
mustEmbedUnimplementedS2AServiceServer()
}
// UnimplementedS2AServiceServer must be embedded to have forward compatible implementations.
type UnimplementedS2AServiceServer struct {
}
func (UnimplementedS2AServiceServer) SetUpSession(S2AService_SetUpSessionServer) error {
return status.Errorf(codes.Unimplemented, "method SetUpSession not implemented")
}
func (UnimplementedS2AServiceServer) mustEmbedUnimplementedS2AServiceServer() {}
// UnsafeS2AServiceServer may be embedded to opt out of forward compatibility for this service.
// Use of this interface is not recommended, as added methods to S2AServiceServer will
// result in compilation errors.
type UnsafeS2AServiceServer interface {
mustEmbedUnimplementedS2AServiceServer()
}
func RegisterS2AServiceServer(s grpc.ServiceRegistrar, srv S2AServiceServer) {
s.RegisterService(&S2AService_ServiceDesc, srv)
}
func _S2AService_SetUpSession_Handler(srv interface{}, stream grpc.ServerStream) error {
return srv.(S2AServiceServer).SetUpSession(&s2AServiceSetUpSessionServer{stream})
}
type S2AService_SetUpSessionServer interface {
Send(*SessionResp) error
Recv() (*SessionReq, error)
grpc.ServerStream
}
type s2AServiceSetUpSessionServer struct {
grpc.ServerStream
}
func (x *s2AServiceSetUpSessionServer) Send(m *SessionResp) error {
return x.ServerStream.SendMsg(m)
}
func (x *s2AServiceSetUpSessionServer) Recv() (*SessionReq, error) {
m := new(SessionReq)
if err := x.ServerStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// S2AService_ServiceDesc is the grpc.ServiceDesc for S2AService service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
var S2AService_ServiceDesc = grpc.ServiceDesc{
ServiceName: "s2a.proto.S2AService",
HandlerType: (*S2AServiceServer)(nil),
Methods: []grpc.MethodDesc{},
Streams: []grpc.StreamDesc{
{
StreamName: "SetUpSession",
Handler: _S2AService_SetUpSession_Handler,
ServerStreams: true,
ClientStreams: true,
},
},
Metadata: "internal/proto/s2a/s2a.proto",
}

367
vendor/github.com/google/s2a-go/internal/proto/v2/common_go_proto/common.pb.go generated vendored Normal file
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@ -0,0 +1,367 @@
// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.30.0
// protoc v3.21.12
// source: internal/proto/v2/common/common.proto
package common_go_proto
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The TLS 1.0-1.2 ciphersuites that the application can negotiate when using
// S2A.
type Ciphersuite int32
const (
Ciphersuite_CIPHERSUITE_UNSPECIFIED Ciphersuite = 0
Ciphersuite_CIPHERSUITE_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Ciphersuite = 1
Ciphersuite_CIPHERSUITE_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Ciphersuite = 2
Ciphersuite_CIPHERSUITE_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Ciphersuite = 3
Ciphersuite_CIPHERSUITE_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Ciphersuite = 4
Ciphersuite_CIPHERSUITE_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Ciphersuite = 5
Ciphersuite_CIPHERSUITE_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Ciphersuite = 6
)
// Enum value maps for Ciphersuite.
var (
Ciphersuite_name = map[int32]string{
0: "CIPHERSUITE_UNSPECIFIED",
1: "CIPHERSUITE_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
2: "CIPHERSUITE_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
3: "CIPHERSUITE_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
4: "CIPHERSUITE_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
5: "CIPHERSUITE_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
6: "CIPHERSUITE_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
}
Ciphersuite_value = map[string]int32{
"CIPHERSUITE_UNSPECIFIED": 0,
"CIPHERSUITE_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": 1,
"CIPHERSUITE_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384": 2,
"CIPHERSUITE_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256": 3,
"CIPHERSUITE_ECDHE_RSA_WITH_AES_128_GCM_SHA256": 4,
"CIPHERSUITE_ECDHE_RSA_WITH_AES_256_GCM_SHA384": 5,
"CIPHERSUITE_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256": 6,
}
)
func (x Ciphersuite) Enum() *Ciphersuite {
p := new(Ciphersuite)
*p = x
return p
}
func (x Ciphersuite) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (Ciphersuite) Descriptor() protoreflect.EnumDescriptor {
return file_internal_proto_v2_common_common_proto_enumTypes[0].Descriptor()
}
func (Ciphersuite) Type() protoreflect.EnumType {
return &file_internal_proto_v2_common_common_proto_enumTypes[0]
}
func (x Ciphersuite) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use Ciphersuite.Descriptor instead.
func (Ciphersuite) EnumDescriptor() ([]byte, []int) {
return file_internal_proto_v2_common_common_proto_rawDescGZIP(), []int{0}
}
// The TLS versions supported by S2A's handshaker module.
type TLSVersion int32
const (
TLSVersion_TLS_VERSION_UNSPECIFIED TLSVersion = 0
TLSVersion_TLS_VERSION_1_0 TLSVersion = 1
TLSVersion_TLS_VERSION_1_1 TLSVersion = 2
TLSVersion_TLS_VERSION_1_2 TLSVersion = 3
TLSVersion_TLS_VERSION_1_3 TLSVersion = 4
)
// Enum value maps for TLSVersion.
var (
TLSVersion_name = map[int32]string{
0: "TLS_VERSION_UNSPECIFIED",
1: "TLS_VERSION_1_0",
2: "TLS_VERSION_1_1",
3: "TLS_VERSION_1_2",
4: "TLS_VERSION_1_3",
}
TLSVersion_value = map[string]int32{
"TLS_VERSION_UNSPECIFIED": 0,
"TLS_VERSION_1_0": 1,
"TLS_VERSION_1_1": 2,
"TLS_VERSION_1_2": 3,
"TLS_VERSION_1_3": 4,
}
)
func (x TLSVersion) Enum() *TLSVersion {
p := new(TLSVersion)
*p = x
return p
}
func (x TLSVersion) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (TLSVersion) Descriptor() protoreflect.EnumDescriptor {
return file_internal_proto_v2_common_common_proto_enumTypes[1].Descriptor()
}
func (TLSVersion) Type() protoreflect.EnumType {
return &file_internal_proto_v2_common_common_proto_enumTypes[1]
}
func (x TLSVersion) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use TLSVersion.Descriptor instead.
func (TLSVersion) EnumDescriptor() ([]byte, []int) {
return file_internal_proto_v2_common_common_proto_rawDescGZIP(), []int{1}
}
// The side in the TLS connection.
type ConnectionSide int32
const (
ConnectionSide_CONNECTION_SIDE_UNSPECIFIED ConnectionSide = 0
ConnectionSide_CONNECTION_SIDE_CLIENT ConnectionSide = 1
ConnectionSide_CONNECTION_SIDE_SERVER ConnectionSide = 2
)
// Enum value maps for ConnectionSide.
var (
ConnectionSide_name = map[int32]string{
0: "CONNECTION_SIDE_UNSPECIFIED",
1: "CONNECTION_SIDE_CLIENT",
2: "CONNECTION_SIDE_SERVER",
}
ConnectionSide_value = map[string]int32{
"CONNECTION_SIDE_UNSPECIFIED": 0,
"CONNECTION_SIDE_CLIENT": 1,
"CONNECTION_SIDE_SERVER": 2,
}
)
func (x ConnectionSide) Enum() *ConnectionSide {
p := new(ConnectionSide)
*p = x
return p
}
func (x ConnectionSide) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (ConnectionSide) Descriptor() protoreflect.EnumDescriptor {
return file_internal_proto_v2_common_common_proto_enumTypes[2].Descriptor()
}
func (ConnectionSide) Type() protoreflect.EnumType {
return &file_internal_proto_v2_common_common_proto_enumTypes[2]
}
func (x ConnectionSide) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use ConnectionSide.Descriptor instead.
func (ConnectionSide) EnumDescriptor() ([]byte, []int) {
return file_internal_proto_v2_common_common_proto_rawDescGZIP(), []int{2}
}
// The ALPN protocols that the application can negotiate during a TLS handshake.
type AlpnProtocol int32
const (
AlpnProtocol_ALPN_PROTOCOL_UNSPECIFIED AlpnProtocol = 0
AlpnProtocol_ALPN_PROTOCOL_GRPC AlpnProtocol = 1
AlpnProtocol_ALPN_PROTOCOL_HTTP2 AlpnProtocol = 2
AlpnProtocol_ALPN_PROTOCOL_HTTP1_1 AlpnProtocol = 3
)
// Enum value maps for AlpnProtocol.
var (
AlpnProtocol_name = map[int32]string{
0: "ALPN_PROTOCOL_UNSPECIFIED",
1: "ALPN_PROTOCOL_GRPC",
2: "ALPN_PROTOCOL_HTTP2",
3: "ALPN_PROTOCOL_HTTP1_1",
}
AlpnProtocol_value = map[string]int32{
"ALPN_PROTOCOL_UNSPECIFIED": 0,
"ALPN_PROTOCOL_GRPC": 1,
"ALPN_PROTOCOL_HTTP2": 2,
"ALPN_PROTOCOL_HTTP1_1": 3,
}
)
func (x AlpnProtocol) Enum() *AlpnProtocol {
p := new(AlpnProtocol)
*p = x
return p
}
func (x AlpnProtocol) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (AlpnProtocol) Descriptor() protoreflect.EnumDescriptor {
return file_internal_proto_v2_common_common_proto_enumTypes[3].Descriptor()
}
func (AlpnProtocol) Type() protoreflect.EnumType {
return &file_internal_proto_v2_common_common_proto_enumTypes[3]
}
func (x AlpnProtocol) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use AlpnProtocol.Descriptor instead.
func (AlpnProtocol) EnumDescriptor() ([]byte, []int) {
return file_internal_proto_v2_common_common_proto_rawDescGZIP(), []int{3}
}
var File_internal_proto_v2_common_common_proto protoreflect.FileDescriptor
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var (
file_internal_proto_v2_common_common_proto_rawDescOnce sync.Once
file_internal_proto_v2_common_common_proto_rawDescData = file_internal_proto_v2_common_common_proto_rawDesc
)
func file_internal_proto_v2_common_common_proto_rawDescGZIP() []byte {
file_internal_proto_v2_common_common_proto_rawDescOnce.Do(func() {
file_internal_proto_v2_common_common_proto_rawDescData = protoimpl.X.CompressGZIP(file_internal_proto_v2_common_common_proto_rawDescData)
})
return file_internal_proto_v2_common_common_proto_rawDescData
}
var file_internal_proto_v2_common_common_proto_enumTypes = make([]protoimpl.EnumInfo, 4)
var file_internal_proto_v2_common_common_proto_goTypes = []interface{}{
(Ciphersuite)(0), // 0: s2a.proto.v2.Ciphersuite
(TLSVersion)(0), // 1: s2a.proto.v2.TLSVersion
(ConnectionSide)(0), // 2: s2a.proto.v2.ConnectionSide
(AlpnProtocol)(0), // 3: s2a.proto.v2.AlpnProtocol
}
var file_internal_proto_v2_common_common_proto_depIdxs = []int32{
0, // [0:0] is the sub-list for method output_type
0, // [0:0] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_internal_proto_v2_common_common_proto_init() }
func file_internal_proto_v2_common_common_proto_init() {
if File_internal_proto_v2_common_common_proto != nil {
return
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_internal_proto_v2_common_common_proto_rawDesc,
NumEnums: 4,
NumMessages: 0,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_internal_proto_v2_common_common_proto_goTypes,
DependencyIndexes: file_internal_proto_v2_common_common_proto_depIdxs,
EnumInfos: file_internal_proto_v2_common_common_proto_enumTypes,
}.Build()
File_internal_proto_v2_common_common_proto = out.File
file_internal_proto_v2_common_common_proto_rawDesc = nil
file_internal_proto_v2_common_common_proto_goTypes = nil
file_internal_proto_v2_common_common_proto_depIdxs = nil
}

248
vendor/github.com/google/s2a-go/internal/proto/v2/s2a_context_go_proto/s2a_context.pb.go generated vendored Normal file
View file

@ -0,0 +1,248 @@
// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.30.0
// protoc v3.21.12
// source: internal/proto/v2/s2a_context/s2a_context.proto
package s2a_context_go_proto
import (
common_go_proto "github.com/google/s2a-go/internal/proto/common_go_proto"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type S2AContext struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The SPIFFE ID from the peer leaf certificate, if present.
//
// This field is only populated if the leaf certificate is a valid SPIFFE
// SVID; in particular, there is a unique URI SAN and this URI SAN is a valid
// SPIFFE ID.
LeafCertSpiffeId string `protobuf:"bytes,1,opt,name=leaf_cert_spiffe_id,json=leafCertSpiffeId,proto3" json:"leaf_cert_spiffe_id,omitempty"`
// The URIs that are present in the SubjectAltName extension of the peer leaf
// certificate.
//
// Note that the extracted URIs are not validated and may not be properly
// formatted.
LeafCertUris []string `protobuf:"bytes,2,rep,name=leaf_cert_uris,json=leafCertUris,proto3" json:"leaf_cert_uris,omitempty"`
// The DNSNames that are present in the SubjectAltName extension of the peer
// leaf certificate.
LeafCertDnsnames []string `protobuf:"bytes,3,rep,name=leaf_cert_dnsnames,json=leafCertDnsnames,proto3" json:"leaf_cert_dnsnames,omitempty"`
// The (ordered) list of fingerprints in the certificate chain used to verify
// the given leaf certificate. The order MUST be from leaf certificate
// fingerprint to root certificate fingerprint.
//
// A fingerprint is the base-64 encoding of the SHA256 hash of the
// DER-encoding of a certificate. The list MAY be populated even if the peer
// certificate chain was NOT validated successfully.
PeerCertificateChainFingerprints []string `protobuf:"bytes,4,rep,name=peer_certificate_chain_fingerprints,json=peerCertificateChainFingerprints,proto3" json:"peer_certificate_chain_fingerprints,omitempty"`
// The local identity used during session setup.
LocalIdentity *common_go_proto.Identity `protobuf:"bytes,5,opt,name=local_identity,json=localIdentity,proto3" json:"local_identity,omitempty"`
// The SHA256 hash of the DER-encoding of the local leaf certificate used in
// the handshake.
LocalLeafCertFingerprint []byte `protobuf:"bytes,6,opt,name=local_leaf_cert_fingerprint,json=localLeafCertFingerprint,proto3" json:"local_leaf_cert_fingerprint,omitempty"`
}
func (x *S2AContext) Reset() {
*x = S2AContext{}
if protoimpl.UnsafeEnabled {
mi := &file_internal_proto_v2_s2a_context_s2a_context_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *S2AContext) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*S2AContext) ProtoMessage() {}
func (x *S2AContext) ProtoReflect() protoreflect.Message {
mi := &file_internal_proto_v2_s2a_context_s2a_context_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use S2AContext.ProtoReflect.Descriptor instead.
func (*S2AContext) Descriptor() ([]byte, []int) {
return file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescGZIP(), []int{0}
}
func (x *S2AContext) GetLeafCertSpiffeId() string {
if x != nil {
return x.LeafCertSpiffeId
}
return ""
}
func (x *S2AContext) GetLeafCertUris() []string {
if x != nil {
return x.LeafCertUris
}
return nil
}
func (x *S2AContext) GetLeafCertDnsnames() []string {
if x != nil {
return x.LeafCertDnsnames
}
return nil
}
func (x *S2AContext) GetPeerCertificateChainFingerprints() []string {
if x != nil {
return x.PeerCertificateChainFingerprints
}
return nil
}
func (x *S2AContext) GetLocalIdentity() *common_go_proto.Identity {
if x != nil {
return x.LocalIdentity
}
return nil
}
func (x *S2AContext) GetLocalLeafCertFingerprint() []byte {
if x != nil {
return x.LocalLeafCertFingerprint
}
return nil
}
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var (
file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescOnce sync.Once
file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescData = file_internal_proto_v2_s2a_context_s2a_context_proto_rawDesc
)
func file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescGZIP() []byte {
file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescOnce.Do(func() {
file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescData = protoimpl.X.CompressGZIP(file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescData)
})
return file_internal_proto_v2_s2a_context_s2a_context_proto_rawDescData
}
var file_internal_proto_v2_s2a_context_s2a_context_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_internal_proto_v2_s2a_context_s2a_context_proto_goTypes = []interface{}{
(*S2AContext)(nil), // 0: s2a.proto.v2.S2AContext
(*common_go_proto.Identity)(nil), // 1: s2a.proto.Identity
}
var file_internal_proto_v2_s2a_context_s2a_context_proto_depIdxs = []int32{
1, // 0: s2a.proto.v2.S2AContext.local_identity:type_name -> s2a.proto.Identity
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_internal_proto_v2_s2a_context_s2a_context_proto_init() }
func file_internal_proto_v2_s2a_context_s2a_context_proto_init() {
if File_internal_proto_v2_s2a_context_s2a_context_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_internal_proto_v2_s2a_context_s2a_context_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*S2AContext); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_internal_proto_v2_s2a_context_s2a_context_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_internal_proto_v2_s2a_context_s2a_context_proto_goTypes,
DependencyIndexes: file_internal_proto_v2_s2a_context_s2a_context_proto_depIdxs,
MessageInfos: file_internal_proto_v2_s2a_context_s2a_context_proto_msgTypes,
}.Build()
File_internal_proto_v2_s2a_context_s2a_context_proto = out.File
file_internal_proto_v2_s2a_context_s2a_context_proto_rawDesc = nil
file_internal_proto_v2_s2a_context_s2a_context_proto_goTypes = nil
file_internal_proto_v2_s2a_context_s2a_context_proto_depIdxs = nil
}

2494
vendor/github.com/google/s2a-go/internal/proto/v2/s2a_go_proto/s2a.pb.go generated vendored Normal file
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159
vendor/github.com/google/s2a-go/internal/proto/v2/s2a_go_proto/s2a_grpc.pb.go generated vendored Normal file
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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
// versions:
// - protoc-gen-go-grpc v1.3.0
// - protoc v3.21.12
// source: internal/proto/v2/s2a/s2a.proto
package s2a_go_proto
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
// Requires gRPC-Go v1.32.0 or later.
const _ = grpc.SupportPackageIsVersion7
const (
S2AService_SetUpSession_FullMethodName = "/s2a.proto.v2.S2AService/SetUpSession"
)
// S2AServiceClient is the client API for S2AService service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type S2AServiceClient interface {
// SetUpSession is a bidirectional stream used by applications to offload
// operations from the TLS handshake.
SetUpSession(ctx context.Context, opts ...grpc.CallOption) (S2AService_SetUpSessionClient, error)
}
type s2AServiceClient struct {
cc grpc.ClientConnInterface
}
func NewS2AServiceClient(cc grpc.ClientConnInterface) S2AServiceClient {
return &s2AServiceClient{cc}
}
func (c *s2AServiceClient) SetUpSession(ctx context.Context, opts ...grpc.CallOption) (S2AService_SetUpSessionClient, error) {
stream, err := c.cc.NewStream(ctx, &S2AService_ServiceDesc.Streams[0], S2AService_SetUpSession_FullMethodName, opts...)
if err != nil {
return nil, err
}
x := &s2AServiceSetUpSessionClient{stream}
return x, nil
}
type S2AService_SetUpSessionClient interface {
Send(*SessionReq) error
Recv() (*SessionResp, error)
grpc.ClientStream
}
type s2AServiceSetUpSessionClient struct {
grpc.ClientStream
}
func (x *s2AServiceSetUpSessionClient) Send(m *SessionReq) error {
return x.ClientStream.SendMsg(m)
}
func (x *s2AServiceSetUpSessionClient) Recv() (*SessionResp, error) {
m := new(SessionResp)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// S2AServiceServer is the server API for S2AService service.
// All implementations must embed UnimplementedS2AServiceServer
// for forward compatibility
type S2AServiceServer interface {
// SetUpSession is a bidirectional stream used by applications to offload
// operations from the TLS handshake.
SetUpSession(S2AService_SetUpSessionServer) error
mustEmbedUnimplementedS2AServiceServer()
}
// UnimplementedS2AServiceServer must be embedded to have forward compatible implementations.
type UnimplementedS2AServiceServer struct {
}
func (UnimplementedS2AServiceServer) SetUpSession(S2AService_SetUpSessionServer) error {
return status.Errorf(codes.Unimplemented, "method SetUpSession not implemented")
}
func (UnimplementedS2AServiceServer) mustEmbedUnimplementedS2AServiceServer() {}
// UnsafeS2AServiceServer may be embedded to opt out of forward compatibility for this service.
// Use of this interface is not recommended, as added methods to S2AServiceServer will
// result in compilation errors.
type UnsafeS2AServiceServer interface {
mustEmbedUnimplementedS2AServiceServer()
}
func RegisterS2AServiceServer(s grpc.ServiceRegistrar, srv S2AServiceServer) {
s.RegisterService(&S2AService_ServiceDesc, srv)
}
func _S2AService_SetUpSession_Handler(srv interface{}, stream grpc.ServerStream) error {
return srv.(S2AServiceServer).SetUpSession(&s2AServiceSetUpSessionServer{stream})
}
type S2AService_SetUpSessionServer interface {
Send(*SessionResp) error
Recv() (*SessionReq, error)
grpc.ServerStream
}
type s2AServiceSetUpSessionServer struct {
grpc.ServerStream
}
func (x *s2AServiceSetUpSessionServer) Send(m *SessionResp) error {
return x.ServerStream.SendMsg(m)
}
func (x *s2AServiceSetUpSessionServer) Recv() (*SessionReq, error) {
m := new(SessionReq)
if err := x.ServerStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// S2AService_ServiceDesc is the grpc.ServiceDesc for S2AService service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
var S2AService_ServiceDesc = grpc.ServiceDesc{
ServiceName: "s2a.proto.v2.S2AService",
HandlerType: (*S2AServiceServer)(nil),
Methods: []grpc.MethodDesc{},
Streams: []grpc.StreamDesc{
{
StreamName: "SetUpSession",
Handler: _S2AService_SetUpSession_Handler,
ServerStreams: true,
ClientStreams: true,
},
},
Metadata: "internal/proto/v2/s2a/s2a.proto",
}

34
vendor/github.com/google/s2a-go/internal/record/internal/aeadcrypter/aeadcrypter.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package aeadcrypter provides the interface for AEAD cipher implementations
// used by S2A's record protocol.
package aeadcrypter
// S2AAEADCrypter is the interface for an AEAD cipher used by the S2A record
// protocol.
type S2AAEADCrypter interface {
// Encrypt encrypts the plaintext and computes the tag of dst and plaintext.
// dst and plaintext may fully overlap or not at all.
Encrypt(dst, plaintext, nonce, aad []byte) ([]byte, error)
// Decrypt decrypts ciphertext and verifies the tag. dst and ciphertext may
// fully overlap or not at all.
Decrypt(dst, ciphertext, nonce, aad []byte) ([]byte, error)
// TagSize returns the tag size in bytes.
TagSize() int
}

70
vendor/github.com/google/s2a-go/internal/record/internal/aeadcrypter/aesgcm.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package aeadcrypter
import (
"crypto/aes"
"crypto/cipher"
"fmt"
)
// Supported key sizes in bytes.
const (
AES128GCMKeySize = 16
AES256GCMKeySize = 32
)
// aesgcm is the struct that holds an AES-GCM cipher for the S2A AEAD crypter.
type aesgcm struct {
aead cipher.AEAD
}
// NewAESGCM creates an AES-GCM crypter instance. Note that the key must be
// either 128 bits or 256 bits.
func NewAESGCM(key []byte) (S2AAEADCrypter, error) {
if len(key) != AES128GCMKeySize && len(key) != AES256GCMKeySize {
return nil, fmt.Errorf("%d or %d bytes, given: %d", AES128GCMKeySize, AES256GCMKeySize, len(key))
}
c, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
a, err := cipher.NewGCM(c)
if err != nil {
return nil, err
}
return &aesgcm{aead: a}, nil
}
// Encrypt is the encryption function. dst can contain bytes at the beginning of
// the ciphertext that will not be encrypted but will be authenticated. If dst
// has enough capacity to hold these bytes, the ciphertext and the tag, no
// allocation and copy operations will be performed. dst and plaintext may
// fully overlap or not at all.
func (s *aesgcm) Encrypt(dst, plaintext, nonce, aad []byte) ([]byte, error) {
return encrypt(s.aead, dst, plaintext, nonce, aad)
}
func (s *aesgcm) Decrypt(dst, ciphertext, nonce, aad []byte) ([]byte, error) {
return decrypt(s.aead, dst, ciphertext, nonce, aad)
}
func (s *aesgcm) TagSize() int {
return TagSize
}

67
vendor/github.com/google/s2a-go/internal/record/internal/aeadcrypter/chachapoly.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package aeadcrypter
import (
"crypto/cipher"
"fmt"
"golang.org/x/crypto/chacha20poly1305"
)
// Supported key size in bytes.
const (
Chacha20Poly1305KeySize = 32
)
// chachapoly is the struct that holds a CHACHA-POLY cipher for the S2A AEAD
// crypter.
type chachapoly struct {
aead cipher.AEAD
}
// NewChachaPoly creates a Chacha-Poly crypter instance. Note that the key must
// be Chacha20Poly1305KeySize bytes in length.
func NewChachaPoly(key []byte) (S2AAEADCrypter, error) {
if len(key) != Chacha20Poly1305KeySize {
return nil, fmt.Errorf("%d bytes, given: %d", Chacha20Poly1305KeySize, len(key))
}
c, err := chacha20poly1305.New(key)
if err != nil {
return nil, err
}
return &chachapoly{aead: c}, nil
}
// Encrypt is the encryption function. dst can contain bytes at the beginning of
// the ciphertext that will not be encrypted but will be authenticated. If dst
// has enough capacity to hold these bytes, the ciphertext and the tag, no
// allocation and copy operations will be performed. dst and plaintext may
// fully overlap or not at all.
func (s *chachapoly) Encrypt(dst, plaintext, nonce, aad []byte) ([]byte, error) {
return encrypt(s.aead, dst, plaintext, nonce, aad)
}
func (s *chachapoly) Decrypt(dst, ciphertext, nonce, aad []byte) ([]byte, error) {
return decrypt(s.aead, dst, ciphertext, nonce, aad)
}
func (s *chachapoly) TagSize() int {
return TagSize
}

92
vendor/github.com/google/s2a-go/internal/record/internal/aeadcrypter/common.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package aeadcrypter
import (
"crypto/cipher"
"fmt"
)
const (
// TagSize is the tag size in bytes for AES-128-GCM-SHA256,
// AES-256-GCM-SHA384, and CHACHA20-POLY1305-SHA256.
TagSize = 16
// NonceSize is the size of the nonce in number of bytes for
// AES-128-GCM-SHA256, AES-256-GCM-SHA384, and CHACHA20-POLY1305-SHA256.
NonceSize = 12
// SHA256DigestSize is the digest size of sha256 in bytes.
SHA256DigestSize = 32
// SHA384DigestSize is the digest size of sha384 in bytes.
SHA384DigestSize = 48
)
// sliceForAppend takes a slice and a requested number of bytes. It returns a
// slice with the contents of the given slice followed by that many bytes and a
// second slice that aliases into it and contains only the extra bytes. If the
// original slice has sufficient capacity then no allocation is performed.
func sliceForAppend(in []byte, n int) (head, tail []byte) {
if total := len(in) + n; cap(in) >= total {
head = in[:total]
} else {
head = make([]byte, total)
copy(head, in)
}
tail = head[len(in):]
return head, tail
}
// encrypt is the encryption function for an AEAD crypter. aead determines
// the type of AEAD crypter. dst can contain bytes at the beginning of the
// ciphertext that will not be encrypted but will be authenticated. If dst has
// enough capacity to hold these bytes, the ciphertext and the tag, no
// allocation and copy operations will be performed. dst and plaintext may
// fully overlap or not at all.
func encrypt(aead cipher.AEAD, dst, plaintext, nonce, aad []byte) ([]byte, error) {
if len(nonce) != NonceSize {
return nil, fmt.Errorf("nonce size must be %d bytes. received: %d", NonceSize, len(nonce))
}
// If we need to allocate an output buffer, we want to include space for
// the tag to avoid forcing the caller to reallocate as well.
dlen := len(dst)
dst, out := sliceForAppend(dst, len(plaintext)+TagSize)
data := out[:len(plaintext)]
copy(data, plaintext) // data may fully overlap plaintext
// Seal appends the ciphertext and the tag to its first argument and
// returns the updated slice. However, sliceForAppend above ensures that
// dst has enough capacity to avoid a reallocation and copy due to the
// append.
dst = aead.Seal(dst[:dlen], nonce, data, aad)
return dst, nil
}
// decrypt is the decryption function for an AEAD crypter, where aead determines
// the type of AEAD crypter, and dst the destination bytes for the decrypted
// ciphertext. The dst buffer may fully overlap with plaintext or not at all.
func decrypt(aead cipher.AEAD, dst, ciphertext, nonce, aad []byte) ([]byte, error) {
if len(nonce) != NonceSize {
return nil, fmt.Errorf("nonce size must be %d bytes. received: %d", NonceSize, len(nonce))
}
// If dst is equal to ciphertext[:0], ciphertext storage is reused.
plaintext, err := aead.Open(dst, nonce, ciphertext, aad)
if err != nil {
return nil, fmt.Errorf("message auth failed: %v", err)
}
return plaintext, nil
}

98
vendor/github.com/google/s2a-go/internal/record/internal/halfconn/ciphersuite.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package halfconn
import (
"crypto/sha256"
"crypto/sha512"
"fmt"
"hash"
s2apb "github.com/google/s2a-go/internal/proto/common_go_proto"
"github.com/google/s2a-go/internal/record/internal/aeadcrypter"
)
// ciphersuite is the interface for retrieving ciphersuite-specific information
// and utilities.
type ciphersuite interface {
// keySize returns the key size in bytes. This refers to the key used by
// the AEAD crypter. This is derived by calling HKDF expand on the traffic
// secret.
keySize() int
// nonceSize returns the nonce size in bytes.
nonceSize() int
// trafficSecretSize returns the traffic secret size in bytes. This refers
// to the secret used to derive the traffic key and nonce, as specified in
// https://tools.ietf.org/html/rfc8446#section-7.
trafficSecretSize() int
// hashFunction returns the hash function for the ciphersuite.
hashFunction() func() hash.Hash
// aeadCrypter takes a key and creates an AEAD crypter for the ciphersuite
// using that key.
aeadCrypter(key []byte) (aeadcrypter.S2AAEADCrypter, error)
}
func newCiphersuite(ciphersuite s2apb.Ciphersuite) (ciphersuite, error) {
switch ciphersuite {
case s2apb.Ciphersuite_AES_128_GCM_SHA256:
return &aesgcm128sha256{}, nil
case s2apb.Ciphersuite_AES_256_GCM_SHA384:
return &aesgcm256sha384{}, nil
case s2apb.Ciphersuite_CHACHA20_POLY1305_SHA256:
return &chachapolysha256{}, nil
default:
return nil, fmt.Errorf("unrecognized ciphersuite: %v", ciphersuite)
}
}
// aesgcm128sha256 is the AES-128-GCM-SHA256 implementation of the ciphersuite
// interface.
type aesgcm128sha256 struct{}
func (aesgcm128sha256) keySize() int { return aeadcrypter.AES128GCMKeySize }
func (aesgcm128sha256) nonceSize() int { return aeadcrypter.NonceSize }
func (aesgcm128sha256) trafficSecretSize() int { return aeadcrypter.SHA256DigestSize }
func (aesgcm128sha256) hashFunction() func() hash.Hash { return sha256.New }
func (aesgcm128sha256) aeadCrypter(key []byte) (aeadcrypter.S2AAEADCrypter, error) {
return aeadcrypter.NewAESGCM(key)
}
// aesgcm256sha384 is the AES-256-GCM-SHA384 implementation of the ciphersuite
// interface.
type aesgcm256sha384 struct{}
func (aesgcm256sha384) keySize() int { return aeadcrypter.AES256GCMKeySize }
func (aesgcm256sha384) nonceSize() int { return aeadcrypter.NonceSize }
func (aesgcm256sha384) trafficSecretSize() int { return aeadcrypter.SHA384DigestSize }
func (aesgcm256sha384) hashFunction() func() hash.Hash { return sha512.New384 }
func (aesgcm256sha384) aeadCrypter(key []byte) (aeadcrypter.S2AAEADCrypter, error) {
return aeadcrypter.NewAESGCM(key)
}
// chachapolysha256 is the ChaChaPoly-SHA256 implementation of the ciphersuite
// interface.
type chachapolysha256 struct{}
func (chachapolysha256) keySize() int { return aeadcrypter.Chacha20Poly1305KeySize }
func (chachapolysha256) nonceSize() int { return aeadcrypter.NonceSize }
func (chachapolysha256) trafficSecretSize() int { return aeadcrypter.SHA256DigestSize }
func (chachapolysha256) hashFunction() func() hash.Hash { return sha256.New }
func (chachapolysha256) aeadCrypter(key []byte) (aeadcrypter.S2AAEADCrypter, error) {
return aeadcrypter.NewChachaPoly(key)
}

60
vendor/github.com/google/s2a-go/internal/record/internal/halfconn/counter.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package halfconn
import "errors"
// counter is a 64-bit counter.
type counter struct {
val uint64
hasOverflowed bool
}
// newCounter creates a new counter with the initial value set to val.
func newCounter(val uint64) counter {
return counter{val: val}
}
// value returns the current value of the counter.
func (c *counter) value() (uint64, error) {
if c.hasOverflowed {
return 0, errors.New("counter has overflowed")
}
return c.val, nil
}
// increment increments the counter and checks for overflow.
func (c *counter) increment() {
// If the counter is already invalid due to overflow, there is no need to
// increase it. We check for the hasOverflowed flag in the call to value().
if c.hasOverflowed {
return
}
c.val++
if c.val == 0 {
c.hasOverflowed = true
}
}
// reset sets the counter value to zero and sets the hasOverflowed flag to
// false.
func (c *counter) reset() {
c.val = 0
c.hasOverflowed = false
}

59
vendor/github.com/google/s2a-go/internal/record/internal/halfconn/expander.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package halfconn
import (
"fmt"
"hash"
"golang.org/x/crypto/hkdf"
)
// hkdfExpander is the interface for the HKDF expansion function; see
// https://tools.ietf.org/html/rfc5869 for details. its use in TLS 1.3 is
// specified in https://tools.ietf.org/html/rfc8446#section-7.2
type hkdfExpander interface {
// expand takes a secret, a label, and the output length in bytes, and
// returns the resulting expanded key.
expand(secret, label []byte, length int) ([]byte, error)
}
// defaultHKDFExpander is the default HKDF expander which uses Go's crypto/hkdf
// for HKDF expansion.
type defaultHKDFExpander struct {
h func() hash.Hash
}
// newDefaultHKDFExpander creates an instance of the default HKDF expander
// using the given hash function.
func newDefaultHKDFExpander(h func() hash.Hash) hkdfExpander {
return &defaultHKDFExpander{h: h}
}
func (d *defaultHKDFExpander) expand(secret, label []byte, length int) ([]byte, error) {
outBuf := make([]byte, length)
n, err := hkdf.Expand(d.h, secret, label).Read(outBuf)
if err != nil {
return nil, fmt.Errorf("hkdf.Expand.Read failed with error: %v", err)
}
if n < length {
return nil, fmt.Errorf("hkdf.Expand.Read returned unexpected length, got %d, want %d", n, length)
}
return outBuf, nil
}

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vendor/github.com/google/s2a-go/internal/record/internal/halfconn/halfconn.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package halfconn manages the inbound or outbound traffic of a TLS 1.3
// connection.
package halfconn
import (
"fmt"
"sync"
s2apb "github.com/google/s2a-go/internal/proto/common_go_proto"
"github.com/google/s2a-go/internal/record/internal/aeadcrypter"
"golang.org/x/crypto/cryptobyte"
)
// The constants below were taken from Section 7.2 and 7.3 in
// https://tools.ietf.org/html/rfc8446#section-7. They are used as the label
// in HKDF-Expand-Label.
const (
tls13Key = "tls13 key"
tls13Nonce = "tls13 iv"
tls13Update = "tls13 traffic upd"
)
// S2AHalfConnection stores the state of the TLS 1.3 connection in the
// inbound or outbound direction.
type S2AHalfConnection struct {
cs ciphersuite
expander hkdfExpander
// mutex guards sequence, aeadCrypter, trafficSecret, and nonce.
mutex sync.Mutex
aeadCrypter aeadcrypter.S2AAEADCrypter
sequence counter
trafficSecret []byte
nonce []byte
}
// New creates a new instance of S2AHalfConnection given a ciphersuite and a
// traffic secret.
func New(ciphersuite s2apb.Ciphersuite, trafficSecret []byte, sequence uint64) (*S2AHalfConnection, error) {
cs, err := newCiphersuite(ciphersuite)
if err != nil {
return nil, fmt.Errorf("failed to create new ciphersuite: %v", ciphersuite)
}
if cs.trafficSecretSize() != len(trafficSecret) {
return nil, fmt.Errorf("supplied traffic secret must be %v bytes, given: %v bytes", cs.trafficSecretSize(), len(trafficSecret))
}
hc := &S2AHalfConnection{cs: cs, expander: newDefaultHKDFExpander(cs.hashFunction()), sequence: newCounter(sequence), trafficSecret: trafficSecret}
if err = hc.updateCrypterAndNonce(hc.trafficSecret); err != nil {
return nil, fmt.Errorf("failed to create half connection using traffic secret: %v", err)
}
return hc, nil
}
// Encrypt encrypts the plaintext and computes the tag of dst and plaintext.
// dst and plaintext may fully overlap or not at all. Note that the sequence
// number will still be incremented on failure, unless the sequence has
// overflowed.
func (hc *S2AHalfConnection) Encrypt(dst, plaintext, aad []byte) ([]byte, error) {
hc.mutex.Lock()
sequence, err := hc.getAndIncrementSequence()
if err != nil {
hc.mutex.Unlock()
return nil, err
}
nonce := hc.maskedNonce(sequence)
crypter := hc.aeadCrypter
hc.mutex.Unlock()
return crypter.Encrypt(dst, plaintext, nonce, aad)
}
// Decrypt decrypts ciphertext and verifies the tag. dst and ciphertext may
// fully overlap or not at all. Note that the sequence number will still be
// incremented on failure, unless the sequence has overflowed.
func (hc *S2AHalfConnection) Decrypt(dst, ciphertext, aad []byte) ([]byte, error) {
hc.mutex.Lock()
sequence, err := hc.getAndIncrementSequence()
if err != nil {
hc.mutex.Unlock()
return nil, err
}
nonce := hc.maskedNonce(sequence)
crypter := hc.aeadCrypter
hc.mutex.Unlock()
return crypter.Decrypt(dst, ciphertext, nonce, aad)
}
// UpdateKey advances the traffic secret key, as specified in
// https://tools.ietf.org/html/rfc8446#section-7.2. In addition, it derives
// a new key and nonce, and resets the sequence number.
func (hc *S2AHalfConnection) UpdateKey() error {
hc.mutex.Lock()
defer hc.mutex.Unlock()
var err error
hc.trafficSecret, err = hc.deriveSecret(hc.trafficSecret, []byte(tls13Update), hc.cs.trafficSecretSize())
if err != nil {
return fmt.Errorf("failed to derive traffic secret: %v", err)
}
if err = hc.updateCrypterAndNonce(hc.trafficSecret); err != nil {
return fmt.Errorf("failed to update half connection: %v", err)
}
hc.sequence.reset()
return nil
}
// TagSize returns the tag size in bytes of the underlying AEAD crypter.
func (hc *S2AHalfConnection) TagSize() int {
return hc.aeadCrypter.TagSize()
}
// updateCrypterAndNonce takes a new traffic secret and updates the crypter
// and nonce. Note that the mutex must be held while calling this function.
func (hc *S2AHalfConnection) updateCrypterAndNonce(newTrafficSecret []byte) error {
key, err := hc.deriveSecret(newTrafficSecret, []byte(tls13Key), hc.cs.keySize())
if err != nil {
return fmt.Errorf("failed to update key: %v", err)
}
hc.nonce, err = hc.deriveSecret(newTrafficSecret, []byte(tls13Nonce), hc.cs.nonceSize())
if err != nil {
return fmt.Errorf("failed to update nonce: %v", err)
}
hc.aeadCrypter, err = hc.cs.aeadCrypter(key)
if err != nil {
return fmt.Errorf("failed to update AEAD crypter: %v", err)
}
return nil
}
// getAndIncrement returns the current sequence number and increments it. Note
// that the mutex must be held while calling this function.
func (hc *S2AHalfConnection) getAndIncrementSequence() (uint64, error) {
sequence, err := hc.sequence.value()
if err != nil {
return 0, err
}
hc.sequence.increment()
return sequence, nil
}
// maskedNonce creates a copy of the nonce that is masked with the sequence
// number. Note that the mutex must be held while calling this function.
func (hc *S2AHalfConnection) maskedNonce(sequence uint64) []byte {
const uint64Size = 8
nonce := make([]byte, len(hc.nonce))
copy(nonce, hc.nonce)
for i := 0; i < uint64Size; i++ {
nonce[aeadcrypter.NonceSize-uint64Size+i] ^= byte(sequence >> uint64(56-uint64Size*i))
}
return nonce
}
// deriveSecret implements the Derive-Secret function, as specified in
// https://tools.ietf.org/html/rfc8446#section-7.1.
func (hc *S2AHalfConnection) deriveSecret(secret, label []byte, length int) ([]byte, error) {
var hkdfLabel cryptobyte.Builder
hkdfLabel.AddUint16(uint16(length))
hkdfLabel.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
b.AddBytes(label)
})
// Append an empty `Context` field to the label, as specified in the RFC.
// The half connection does not use the `Context` field.
hkdfLabel.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
b.AddBytes([]byte(""))
})
hkdfLabelBytes, err := hkdfLabel.Bytes()
if err != nil {
return nil, fmt.Errorf("deriveSecret failed: %v", err)
}
return hc.expander.expand(secret, hkdfLabelBytes, length)
}

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vendor/github.com/google/s2a-go/internal/record/record.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package record implements the TLS 1.3 record protocol used by the S2A
// transport credentials.
package record
import (
"encoding/binary"
"errors"
"fmt"
"math"
"net"
"sync"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
"github.com/google/s2a-go/internal/record/internal/halfconn"
"github.com/google/s2a-go/internal/tokenmanager"
"google.golang.org/grpc/grpclog"
)
// recordType is the `ContentType` as described in
// https://tools.ietf.org/html/rfc8446#section-5.1.
type recordType byte
const (
alert recordType = 21
handshake recordType = 22
applicationData recordType = 23
)
// keyUpdateRequest is the `KeyUpdateRequest` as described in
// https://tools.ietf.org/html/rfc8446#section-4.6.3.
type keyUpdateRequest byte
const (
updateNotRequested keyUpdateRequest = 0
updateRequested keyUpdateRequest = 1
)
// alertDescription is the `AlertDescription` as described in
// https://tools.ietf.org/html/rfc8446#section-6.
type alertDescription byte
const (
closeNotify alertDescription = 0
)
// sessionTicketState is used to determine whether session tickets have not yet
// been received, are in the process of being received, or have finished
// receiving.
type sessionTicketState byte
const (
ticketsNotYetReceived sessionTicketState = 0
receivingTickets sessionTicketState = 1
notReceivingTickets sessionTicketState = 2
)
const (
// The TLS 1.3-specific constants below (tlsRecordMaxPlaintextSize,
// tlsRecordHeaderSize, tlsRecordTypeSize) were taken from
// https://tools.ietf.org/html/rfc8446#section-5.1.
// tlsRecordMaxPlaintextSize is the maximum size in bytes of the plaintext
// in a single TLS 1.3 record.
tlsRecordMaxPlaintextSize = 16384 // 2^14
// tlsRecordTypeSize is the size in bytes of the TLS 1.3 record type.
tlsRecordTypeSize = 1
// tlsTagSize is the size in bytes of the tag of the following three
// ciphersuites: AES-128-GCM-SHA256, AES-256-GCM-SHA384,
// CHACHA20-POLY1305-SHA256.
tlsTagSize = 16
// tlsRecordMaxPayloadSize is the maximum size in bytes of the payload in a
// single TLS 1.3 record. This is the maximum size of the plaintext plus the
// record type byte and 16 bytes of the tag.
tlsRecordMaxPayloadSize = tlsRecordMaxPlaintextSize + tlsRecordTypeSize + tlsTagSize
// tlsRecordHeaderTypeSize is the size in bytes of the TLS 1.3 record
// header type.
tlsRecordHeaderTypeSize = 1
// tlsRecordHeaderLegacyRecordVersionSize is the size in bytes of the TLS
// 1.3 record header legacy record version.
tlsRecordHeaderLegacyRecordVersionSize = 2
// tlsRecordHeaderPayloadLengthSize is the size in bytes of the TLS 1.3
// record header payload length.
tlsRecordHeaderPayloadLengthSize = 2
// tlsRecordHeaderSize is the size in bytes of the TLS 1.3 record header.
tlsRecordHeaderSize = tlsRecordHeaderTypeSize + tlsRecordHeaderLegacyRecordVersionSize + tlsRecordHeaderPayloadLengthSize
// tlsRecordMaxSize
tlsRecordMaxSize = tlsRecordMaxPayloadSize + tlsRecordHeaderSize
// tlsApplicationData is the application data type of the TLS 1.3 record
// header.
tlsApplicationData = 23
// tlsLegacyRecordVersion is the legacy record version of the TLS record.
tlsLegacyRecordVersion = 3
// tlsAlertSize is the size in bytes of an alert of TLS 1.3.
tlsAlertSize = 2
)
const (
// These are TLS 1.3 handshake-specific constants.
// tlsHandshakeNewSessionTicketType is the prefix of a handshake new session
// ticket message of TLS 1.3.
tlsHandshakeNewSessionTicketType = 4
// tlsHandshakeKeyUpdateType is the prefix of a handshake key update message
// of TLS 1.3.
tlsHandshakeKeyUpdateType = 24
// tlsHandshakeMsgTypeSize is the size in bytes of the TLS 1.3 handshake
// message type field.
tlsHandshakeMsgTypeSize = 1
// tlsHandshakeLengthSize is the size in bytes of the TLS 1.3 handshake
// message length field.
tlsHandshakeLengthSize = 3
// tlsHandshakeKeyUpdateMsgSize is the size in bytes of the TLS 1.3
// handshake key update message.
tlsHandshakeKeyUpdateMsgSize = 1
// tlsHandshakePrefixSize is the size in bytes of the prefix of the TLS 1.3
// handshake message.
tlsHandshakePrefixSize = 4
// tlsMaxSessionTicketSize is the maximum size of a NewSessionTicket message
// in TLS 1.3. This is the sum of the max sizes of all the fields in the
// NewSessionTicket struct specified in
// https://tools.ietf.org/html/rfc8446#section-4.6.1.
tlsMaxSessionTicketSize = 131338
)
const (
// outBufMaxRecords is the maximum number of records that can fit in the
// ourRecordsBuf buffer.
outBufMaxRecords = 16
// outBufMaxSize is the maximum size (in bytes) of the outRecordsBuf buffer.
outBufMaxSize = outBufMaxRecords * tlsRecordMaxSize
// maxAllowedTickets is the maximum number of session tickets that are
// allowed. The number of tickets are limited to ensure that the size of the
// ticket queue does not grow indefinitely. S2A also keeps a limit on the
// number of tickets that it caches.
maxAllowedTickets = 5
)
// preConstructedKeyUpdateMsg holds the key update message. This is needed as an
// optimization so that the same message does not need to be constructed every
// time a key update message is sent.
var preConstructedKeyUpdateMsg = buildKeyUpdateRequest()
// conn represents a secured TLS connection. It implements the net.Conn
// interface.
type conn struct {
net.Conn
// inConn is the half connection responsible for decrypting incoming bytes.
inConn *halfconn.S2AHalfConnection
// outConn is the half connection responsible for encrypting outgoing bytes.
outConn *halfconn.S2AHalfConnection
// pendingApplicationData holds data that has been read from the connection
// and decrypted, but has not yet been returned by Read.
pendingApplicationData []byte
// unusedBuf holds data read from the network that has not yet been
// decrypted. This data might not consist of a complete record. It may
// consist of several records, the last of which could be incomplete.
unusedBuf []byte
// outRecordsBuf is a buffer used to store outgoing TLS records before
// they are written to the network.
outRecordsBuf []byte
// nextRecord stores the next record info in the unusedBuf buffer.
nextRecord []byte
// overheadSize is the overhead size in bytes of each TLS 1.3 record, which
// is computed as overheadSize = header size + record type byte + tag size.
// Note that there is no padding by zeros in the overhead calculation.
overheadSize int
// readMutex guards against concurrent calls to Read. This is required since
// Close may be called during a Read.
readMutex sync.Mutex
// writeMutex guards against concurrent calls to Write. This is required
// since Close may be called during a Write, and also because a key update
// message may be written during a Read.
writeMutex sync.Mutex
// handshakeBuf holds handshake messages while they are being processed.
handshakeBuf []byte
// ticketState is the current processing state of the session tickets.
ticketState sessionTicketState
// sessionTickets holds the completed session tickets until they are sent to
// the handshaker service for processing.
sessionTickets [][]byte
// ticketSender sends session tickets to the S2A handshaker service.
ticketSender s2aTicketSender
// callComplete is a channel that blocks closing the record protocol until a
// pending call to the S2A completes.
callComplete chan bool
}
// ConnParameters holds the parameters used for creating a new conn object.
type ConnParameters struct {
// NetConn is the TCP connection to the peer. This parameter is required.
NetConn net.Conn
// Ciphersuite is the TLS ciphersuite negotiated by the S2A handshaker
// service. This parameter is required.
Ciphersuite commonpb.Ciphersuite
// TLSVersion is the TLS version number negotiated by the S2A handshaker
// service. This parameter is required.
TLSVersion commonpb.TLSVersion
// InTrafficSecret is the traffic secret used to derive the session key for
// the inbound direction. This parameter is required.
InTrafficSecret []byte
// OutTrafficSecret is the traffic secret used to derive the session key
// for the outbound direction. This parameter is required.
OutTrafficSecret []byte
// UnusedBuf is the data read from the network that has not yet been
// decrypted. This parameter is optional. If not provided, then no
// application data was sent in the same flight of messages as the final
// handshake message.
UnusedBuf []byte
// InSequence is the sequence number of the next, incoming, TLS record.
// This parameter is required.
InSequence uint64
// OutSequence is the sequence number of the next, outgoing, TLS record.
// This parameter is required.
OutSequence uint64
// HSAddr stores the address of the S2A handshaker service. This parameter
// is optional. If not provided, then TLS resumption is disabled.
HSAddr string
// ConnectionId is the connection identifier that was created and sent by
// S2A at the end of a handshake.
ConnectionID uint64
// LocalIdentity is the local identity that was used by S2A during session
// setup and included in the session result.
LocalIdentity *commonpb.Identity
// EnsureProcessSessionTickets allows users to wait and ensure that all
// available session tickets are sent to S2A before a process completes.
EnsureProcessSessionTickets *sync.WaitGroup
}
// NewConn creates a TLS record protocol that wraps the TCP connection.
func NewConn(o *ConnParameters) (net.Conn, error) {
if o == nil {
return nil, errors.New("conn options must not be nil")
}
if o.TLSVersion != commonpb.TLSVersion_TLS1_3 {
return nil, errors.New("TLS version must be TLS 1.3")
}
inConn, err := halfconn.New(o.Ciphersuite, o.InTrafficSecret, o.InSequence)
if err != nil {
return nil, fmt.Errorf("failed to create inbound half connection: %v", err)
}
outConn, err := halfconn.New(o.Ciphersuite, o.OutTrafficSecret, o.OutSequence)
if err != nil {
return nil, fmt.Errorf("failed to create outbound half connection: %v", err)
}
// The tag size for the in/out connections should be the same.
overheadSize := tlsRecordHeaderSize + tlsRecordTypeSize + inConn.TagSize()
var unusedBuf []byte
if o.UnusedBuf == nil {
// We pre-allocate unusedBuf to be of size
// 2*tlsRecordMaxSize-1 during initialization. We only read from the
// network into unusedBuf when unusedBuf does not contain a complete
// record and the incomplete record is at most tlsRecordMaxSize-1
// (bytes). And we read at most tlsRecordMaxSize bytes of data from the
// network into unusedBuf at one time. Therefore, 2*tlsRecordMaxSize-1
// is large enough to buffer data read from the network.
unusedBuf = make([]byte, 0, 2*tlsRecordMaxSize-1)
} else {
unusedBuf = make([]byte, len(o.UnusedBuf))
copy(unusedBuf, o.UnusedBuf)
}
tokenManager, err := tokenmanager.NewSingleTokenAccessTokenManager()
if err != nil {
grpclog.Infof("failed to create single token access token manager: %v", err)
}
s2aConn := &conn{
Conn: o.NetConn,
inConn: inConn,
outConn: outConn,
unusedBuf: unusedBuf,
outRecordsBuf: make([]byte, tlsRecordMaxSize),
nextRecord: unusedBuf,
overheadSize: overheadSize,
ticketState: ticketsNotYetReceived,
// Pre-allocate the buffer for one session ticket message and the max
// plaintext size. This is the largest size that handshakeBuf will need
// to hold. The largest incomplete handshake message is the
// [handshake header size] + [max session ticket size] - 1.
// Then, tlsRecordMaxPlaintextSize is the maximum size that will be
// appended to the handshakeBuf before the handshake message is
// completed. Therefore, the buffer size below should be large enough to
// buffer any handshake messages.
handshakeBuf: make([]byte, 0, tlsHandshakePrefixSize+tlsMaxSessionTicketSize+tlsRecordMaxPlaintextSize-1),
ticketSender: &ticketSender{
hsAddr: o.HSAddr,
connectionID: o.ConnectionID,
localIdentity: o.LocalIdentity,
tokenManager: tokenManager,
ensureProcessSessionTickets: o.EnsureProcessSessionTickets,
},
callComplete: make(chan bool),
}
return s2aConn, nil
}
// Read reads and decrypts a TLS 1.3 record from the underlying connection, and
// copies any application data received from the peer into b. If the size of the
// payload is greater than len(b), Read retains the remaining bytes in an
// internal buffer, and subsequent calls to Read will read from this buffer
// until it is exhausted. At most 1 TLS record worth of application data is
// written to b for each call to Read.
//
// Note that for the user to efficiently call this method, the user should
// ensure that the buffer b is allocated such that the buffer does not have any
// unused segments. This can be done by calling Read via io.ReadFull, which
// continually calls Read until the specified buffer has been filled. Also note
// that the user should close the connection via Close() if an error is thrown
// by a call to Read.
func (p *conn) Read(b []byte) (n int, err error) {
p.readMutex.Lock()
defer p.readMutex.Unlock()
// Check if p.pendingApplication data has leftover application data from
// the previous call to Read.
if len(p.pendingApplicationData) == 0 {
// Read a full record from the wire.
record, err := p.readFullRecord()
if err != nil {
return 0, err
}
// Now we have a complete record, so split the header and validate it
// The TLS record is split into 2 pieces: the record header and the
// payload. The payload has the following form:
// [payload] = [ciphertext of application data]
// + [ciphertext of record type byte]
// + [(optionally) ciphertext of padding by zeros]
// + [tag]
header, payload, err := splitAndValidateHeader(record)
if err != nil {
return 0, err
}
// Decrypt the ciphertext.
p.pendingApplicationData, err = p.inConn.Decrypt(payload[:0], payload, header)
if err != nil {
return 0, err
}
// Remove the padding by zeros and the record type byte from the
// p.pendingApplicationData buffer.
msgType, err := p.stripPaddingAndType()
if err != nil {
return 0, err
}
// Check that the length of the plaintext after stripping the padding
// and record type byte is under the maximum plaintext size.
if len(p.pendingApplicationData) > tlsRecordMaxPlaintextSize {
return 0, errors.New("plaintext size larger than maximum")
}
// The expected message types are application data, alert, and
// handshake. For application data, the bytes are directly copied into
// b. For an alert, the type of the alert is checked and the connection
// is closed on a close notify alert. For a handshake message, the
// handshake message type is checked. The handshake message type can be
// a key update type, for which we advance the traffic secret, and a
// new session ticket type, for which we send the received ticket to S2A
// for processing.
switch msgType {
case applicationData:
if len(p.handshakeBuf) > 0 {
return 0, errors.New("application data received while processing fragmented handshake messages")
}
if p.ticketState == receivingTickets {
p.ticketState = notReceivingTickets
grpclog.Infof("Sending session tickets to S2A.")
p.ticketSender.sendTicketsToS2A(p.sessionTickets, p.callComplete)
}
case alert:
return 0, p.handleAlertMessage()
case handshake:
if err = p.handleHandshakeMessage(); err != nil {
return 0, err
}
return 0, nil
default:
return 0, errors.New("unknown record type")
}
}
// Write as much application data as possible to b, the output buffer.
n = copy(b, p.pendingApplicationData)
p.pendingApplicationData = p.pendingApplicationData[n:]
return n, nil
}
// Write divides b into segments of size tlsRecordMaxPlaintextSize, builds a
// TLS 1.3 record (of type "application data") from each segment, and sends
// the record to the peer. It returns the number of plaintext bytes that were
// successfully sent to the peer.
func (p *conn) Write(b []byte) (n int, err error) {
p.writeMutex.Lock()
defer p.writeMutex.Unlock()
return p.writeTLSRecord(b, tlsApplicationData)
}
// writeTLSRecord divides b into segments of size maxPlaintextBytesPerRecord,
// builds a TLS 1.3 record (of type recordType) from each segment, and sends
// the record to the peer. It returns the number of plaintext bytes that were
// successfully sent to the peer.
func (p *conn) writeTLSRecord(b []byte, recordType byte) (n int, err error) {
// Create a record of only header, record type, and tag if given empty
// byte array.
if len(b) == 0 {
recordEndIndex, _, err := p.buildRecord(b, recordType, 0)
if err != nil {
return 0, err
}
// Write the bytes stored in outRecordsBuf to p.Conn. Since we return
// the number of plaintext bytes written without overhead, we will
// always return 0 while p.Conn.Write returns the entire record length.
_, err = p.Conn.Write(p.outRecordsBuf[:recordEndIndex])
return 0, err
}
numRecords := int(math.Ceil(float64(len(b)) / float64(tlsRecordMaxPlaintextSize)))
totalRecordsSize := len(b) + numRecords*p.overheadSize
partialBSize := len(b)
if totalRecordsSize > outBufMaxSize {
totalRecordsSize = outBufMaxSize
partialBSize = outBufMaxRecords * tlsRecordMaxPlaintextSize
}
if len(p.outRecordsBuf) < totalRecordsSize {
p.outRecordsBuf = make([]byte, totalRecordsSize)
}
for bStart := 0; bStart < len(b); bStart += partialBSize {
bEnd := bStart + partialBSize
if bEnd > len(b) {
bEnd = len(b)
}
partialB := b[bStart:bEnd]
recordEndIndex := 0
for len(partialB) > 0 {
recordEndIndex, partialB, err = p.buildRecord(partialB, recordType, recordEndIndex)
if err != nil {
// Return the amount of bytes written prior to the error.
return bStart, err
}
}
// Write the bytes stored in outRecordsBuf to p.Conn. If there is an
// error, calculate the total number of plaintext bytes of complete
// records successfully written to the peer and return it.
nn, err := p.Conn.Write(p.outRecordsBuf[:recordEndIndex])
if err != nil {
numberOfCompletedRecords := int(math.Floor(float64(nn) / float64(tlsRecordMaxSize)))
return bStart + numberOfCompletedRecords*tlsRecordMaxPlaintextSize, err
}
}
return len(b), nil
}
// buildRecord builds a TLS 1.3 record of type recordType from plaintext,
// and writes the record to outRecordsBuf at recordStartIndex. The record will
// have at most tlsRecordMaxPlaintextSize bytes of payload. It returns the
// index of outRecordsBuf where the current record ends, as well as any
// remaining plaintext bytes.
func (p *conn) buildRecord(plaintext []byte, recordType byte, recordStartIndex int) (n int, remainingPlaintext []byte, err error) {
// Construct the payload, which consists of application data and record type.
dataLen := len(plaintext)
if dataLen > tlsRecordMaxPlaintextSize {
dataLen = tlsRecordMaxPlaintextSize
}
remainingPlaintext = plaintext[dataLen:]
newRecordBuf := p.outRecordsBuf[recordStartIndex:]
copy(newRecordBuf[tlsRecordHeaderSize:], plaintext[:dataLen])
newRecordBuf[tlsRecordHeaderSize+dataLen] = recordType
payload := newRecordBuf[tlsRecordHeaderSize : tlsRecordHeaderSize+dataLen+1] // 1 is for the recordType.
// Construct the header.
newRecordBuf[0] = tlsApplicationData
newRecordBuf[1] = tlsLegacyRecordVersion
newRecordBuf[2] = tlsLegacyRecordVersion
binary.BigEndian.PutUint16(newRecordBuf[3:], uint16(len(payload)+tlsTagSize))
header := newRecordBuf[:tlsRecordHeaderSize]
// Encrypt the payload using header as aad.
encryptedPayload, err := p.outConn.Encrypt(newRecordBuf[tlsRecordHeaderSize:][:0], payload, header)
if err != nil {
return 0, plaintext, err
}
recordStartIndex += len(header) + len(encryptedPayload)
return recordStartIndex, remainingPlaintext, nil
}
func (p *conn) Close() error {
p.readMutex.Lock()
defer p.readMutex.Unlock()
p.writeMutex.Lock()
defer p.writeMutex.Unlock()
// If p.ticketState is equal to notReceivingTickets, then S2A has
// been sent a flight of session tickets, and we must wait for the
// call to S2A to complete before closing the record protocol.
if p.ticketState == notReceivingTickets {
<-p.callComplete
grpclog.Infof("Safe to close the connection because sending tickets to S2A is (already) complete.")
}
return p.Conn.Close()
}
// stripPaddingAndType strips the padding by zeros and record type from
// p.pendingApplicationData and returns the record type. Note that
// p.pendingApplicationData should be of the form:
// [application data] + [record type byte] + [trailing zeros]
func (p *conn) stripPaddingAndType() (recordType, error) {
if len(p.pendingApplicationData) == 0 {
return 0, errors.New("application data had length 0")
}
i := len(p.pendingApplicationData) - 1
// Search for the index of the record type byte.
for i > 0 {
if p.pendingApplicationData[i] != 0 {
break
}
i--
}
rt := recordType(p.pendingApplicationData[i])
p.pendingApplicationData = p.pendingApplicationData[:i]
return rt, nil
}
// readFullRecord reads from the wire until a record is completed and returns
// the full record.
func (p *conn) readFullRecord() (fullRecord []byte, err error) {
fullRecord, p.nextRecord, err = parseReadBuffer(p.nextRecord, tlsRecordMaxPayloadSize)
if err != nil {
return nil, err
}
// Check whether the next record to be decrypted has been completely
// received.
if len(fullRecord) == 0 {
copy(p.unusedBuf, p.nextRecord)
p.unusedBuf = p.unusedBuf[:len(p.nextRecord)]
// Always copy next incomplete record to the beginning of the
// unusedBuf buffer and reset nextRecord to it.
p.nextRecord = p.unusedBuf
}
// Keep reading from the wire until we have a complete record.
for len(fullRecord) == 0 {
if len(p.unusedBuf) == cap(p.unusedBuf) {
tmp := make([]byte, len(p.unusedBuf), cap(p.unusedBuf)+tlsRecordMaxSize)
copy(tmp, p.unusedBuf)
p.unusedBuf = tmp
}
n, err := p.Conn.Read(p.unusedBuf[len(p.unusedBuf):min(cap(p.unusedBuf), len(p.unusedBuf)+tlsRecordMaxSize)])
if err != nil {
return nil, err
}
p.unusedBuf = p.unusedBuf[:len(p.unusedBuf)+n]
fullRecord, p.nextRecord, err = parseReadBuffer(p.unusedBuf, tlsRecordMaxPayloadSize)
if err != nil {
return nil, err
}
}
return fullRecord, nil
}
// parseReadBuffer parses the provided buffer and returns a full record and any
// remaining bytes in that buffer. If the record is incomplete, nil is returned
// for the first return value and the given byte buffer is returned for the
// second return value. The length of the payload specified by the header should
// not be greater than maxLen, otherwise an error is returned. Note that this
// function does not allocate or copy any buffers.
func parseReadBuffer(b []byte, maxLen uint16) (fullRecord, remaining []byte, err error) {
// If the header is not complete, return the provided buffer as remaining
// buffer.
if len(b) < tlsRecordHeaderSize {
return nil, b, nil
}
msgLenField := b[tlsRecordHeaderTypeSize+tlsRecordHeaderLegacyRecordVersionSize : tlsRecordHeaderSize]
length := binary.BigEndian.Uint16(msgLenField)
if length > maxLen {
return nil, nil, fmt.Errorf("record length larger than the limit %d", maxLen)
}
if len(b) < int(length)+tlsRecordHeaderSize {
// Record is not complete yet.
return nil, b, nil
}
return b[:tlsRecordHeaderSize+length], b[tlsRecordHeaderSize+length:], nil
}
// splitAndValidateHeader splits the header from the payload in the TLS 1.3
// record and returns them. Note that the header is checked for validity, and an
// error is returned when an invalid header is parsed. Also note that this
// function does not allocate or copy any buffers.
func splitAndValidateHeader(record []byte) (header, payload []byte, err error) {
if len(record) < tlsRecordHeaderSize {
return nil, nil, fmt.Errorf("record was smaller than the header size")
}
header = record[:tlsRecordHeaderSize]
payload = record[tlsRecordHeaderSize:]
if header[0] != tlsApplicationData {
return nil, nil, fmt.Errorf("incorrect type in the header")
}
// Check the legacy record version, which should be 0x03, 0x03.
if header[1] != 0x03 || header[2] != 0x03 {
return nil, nil, fmt.Errorf("incorrect legacy record version in the header")
}
return header, payload, nil
}
// handleAlertMessage handles an alert message.
func (p *conn) handleAlertMessage() error {
if len(p.pendingApplicationData) != tlsAlertSize {
return errors.New("invalid alert message size")
}
alertType := p.pendingApplicationData[1]
// Clear the body of the alert message.
p.pendingApplicationData = p.pendingApplicationData[:0]
if alertType == byte(closeNotify) {
return errors.New("received a close notify alert")
}
// TODO(matthewstevenson88): Add support for more alert types.
return fmt.Errorf("received an unrecognized alert type: %v", alertType)
}
// parseHandshakeHeader parses a handshake message from the handshake buffer.
// It returns the message type, the message length, the message, the raw message
// that includes the type and length bytes and a flag indicating whether the
// handshake message has been fully parsed. i.e. whether the entire handshake
// message was in the handshake buffer.
func (p *conn) parseHandshakeMsg() (msgType byte, msgLen uint32, msg []byte, rawMsg []byte, ok bool) {
// Handle the case where the 4 byte handshake header is fragmented.
if len(p.handshakeBuf) < tlsHandshakePrefixSize {
return 0, 0, nil, nil, false
}
msgType = p.handshakeBuf[0]
msgLen = bigEndianInt24(p.handshakeBuf[tlsHandshakeMsgTypeSize : tlsHandshakeMsgTypeSize+tlsHandshakeLengthSize])
if msgLen > uint32(len(p.handshakeBuf)-tlsHandshakePrefixSize) {
return 0, 0, nil, nil, false
}
msg = p.handshakeBuf[tlsHandshakePrefixSize : tlsHandshakePrefixSize+msgLen]
rawMsg = p.handshakeBuf[:tlsHandshakeMsgTypeSize+tlsHandshakeLengthSize+msgLen]
p.handshakeBuf = p.handshakeBuf[tlsHandshakePrefixSize+msgLen:]
return msgType, msgLen, msg, rawMsg, true
}
// handleHandshakeMessage handles a handshake message. Note that the first
// complete handshake message from the handshake buffer is removed, if it
// exists.
func (p *conn) handleHandshakeMessage() error {
// Copy the pending application data to the handshake buffer. At this point,
// we are guaranteed that the pending application data contains only parts
// of a handshake message.
p.handshakeBuf = append(p.handshakeBuf, p.pendingApplicationData...)
p.pendingApplicationData = p.pendingApplicationData[:0]
// Several handshake messages may be coalesced into a single record.
// Continue reading them until the handshake buffer is empty.
for len(p.handshakeBuf) > 0 {
handshakeMsgType, msgLen, msg, rawMsg, ok := p.parseHandshakeMsg()
if !ok {
// The handshake could not be fully parsed, so read in another
// record and try again later.
break
}
switch handshakeMsgType {
case tlsHandshakeKeyUpdateType:
if msgLen != tlsHandshakeKeyUpdateMsgSize {
return errors.New("invalid handshake key update message length")
}
if len(p.handshakeBuf) != 0 {
return errors.New("key update message must be the last message of a handshake record")
}
if err := p.handleKeyUpdateMsg(msg); err != nil {
return err
}
case tlsHandshakeNewSessionTicketType:
// Ignore tickets that are received after a batch of tickets has
// been sent to S2A.
if p.ticketState == notReceivingTickets {
continue
}
if p.ticketState == ticketsNotYetReceived {
p.ticketState = receivingTickets
}
p.sessionTickets = append(p.sessionTickets, rawMsg)
if len(p.sessionTickets) == maxAllowedTickets {
p.ticketState = notReceivingTickets
grpclog.Infof("Sending session tickets to S2A.")
p.ticketSender.sendTicketsToS2A(p.sessionTickets, p.callComplete)
}
default:
return errors.New("unknown handshake message type")
}
}
return nil
}
func buildKeyUpdateRequest() []byte {
b := make([]byte, tlsHandshakePrefixSize+tlsHandshakeKeyUpdateMsgSize)
b[0] = tlsHandshakeKeyUpdateType
b[1] = 0
b[2] = 0
b[3] = tlsHandshakeKeyUpdateMsgSize
b[4] = byte(updateNotRequested)
return b
}
// handleKeyUpdateMsg handles a key update message.
func (p *conn) handleKeyUpdateMsg(msg []byte) error {
keyUpdateRequest := msg[0]
if keyUpdateRequest != byte(updateNotRequested) &&
keyUpdateRequest != byte(updateRequested) {
return errors.New("invalid handshake key update message")
}
if err := p.inConn.UpdateKey(); err != nil {
return err
}
// Send a key update message back to the peer if requested.
if keyUpdateRequest == byte(updateRequested) {
p.writeMutex.Lock()
defer p.writeMutex.Unlock()
n, err := p.writeTLSRecord(preConstructedKeyUpdateMsg, byte(handshake))
if err != nil {
return err
}
if n != tlsHandshakePrefixSize+tlsHandshakeKeyUpdateMsgSize {
return errors.New("key update request message wrote less bytes than expected")
}
if err = p.outConn.UpdateKey(); err != nil {
return err
}
}
return nil
}
// bidEndianInt24 converts the given byte buffer of at least size 3 and
// outputs the resulting 24 bit integer as a uint32. This is needed because
// TLS 1.3 requires 3 byte integers, and the binary.BigEndian package does
// not provide a way to transform a byte buffer into a 3 byte integer.
func bigEndianInt24(b []byte) uint32 {
_ = b[2] // bounds check hint to compiler; see golang.org/issue/14808
return uint32(b[2]) | uint32(b[1])<<8 | uint32(b[0])<<16
}
func min(a, b int) int {
if a < b {
return a
}
return b
}

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vendor/github.com/google/s2a-go/internal/record/ticketsender.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package record
import (
"context"
"fmt"
"sync"
"time"
"github.com/google/s2a-go/internal/handshaker/service"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
s2apb "github.com/google/s2a-go/internal/proto/s2a_go_proto"
"github.com/google/s2a-go/internal/tokenmanager"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
)
// sessionTimeout is the timeout for creating a session with the S2A handshaker
// service.
const sessionTimeout = time.Second * 5
// s2aTicketSender sends session tickets to the S2A handshaker service.
type s2aTicketSender interface {
// sendTicketsToS2A sends the given session tickets to the S2A handshaker
// service.
sendTicketsToS2A(sessionTickets [][]byte, callComplete chan bool)
}
// ticketStream is the stream used to send and receive session information.
type ticketStream interface {
Send(*s2apb.SessionReq) error
Recv() (*s2apb.SessionResp, error)
}
type ticketSender struct {
// hsAddr stores the address of the S2A handshaker service.
hsAddr string
// connectionID is the connection identifier that was created and sent by
// S2A at the end of a handshake.
connectionID uint64
// localIdentity is the local identity that was used by S2A during session
// setup and included in the session result.
localIdentity *commonpb.Identity
// tokenManager manages access tokens for authenticating to S2A.
tokenManager tokenmanager.AccessTokenManager
// ensureProcessSessionTickets allows users to wait and ensure that all
// available session tickets are sent to S2A before a process completes.
ensureProcessSessionTickets *sync.WaitGroup
}
// sendTicketsToS2A sends the given sessionTickets to the S2A handshaker
// service. This is done asynchronously and writes to the error logs if an error
// occurs.
func (t *ticketSender) sendTicketsToS2A(sessionTickets [][]byte, callComplete chan bool) {
// Note that the goroutine is in the function rather than at the caller
// because the fake ticket sender used for testing must run synchronously
// so that the session tickets can be accessed from it after the tests have
// been run.
if t.ensureProcessSessionTickets != nil {
t.ensureProcessSessionTickets.Add(1)
}
go func() {
if err := func() error {
defer func() {
if t.ensureProcessSessionTickets != nil {
t.ensureProcessSessionTickets.Done()
}
}()
hsConn, err := service.Dial(t.hsAddr)
if err != nil {
return err
}
client := s2apb.NewS2AServiceClient(hsConn)
ctx, cancel := context.WithTimeout(context.Background(), sessionTimeout)
defer cancel()
session, err := client.SetUpSession(ctx)
if err != nil {
return err
}
defer func() {
if err := session.CloseSend(); err != nil {
grpclog.Error(err)
}
}()
return t.writeTicketsToStream(session, sessionTickets)
}(); err != nil {
grpclog.Errorf("failed to send resumption tickets to S2A with identity: %v, %v",
t.localIdentity, err)
}
callComplete <- true
close(callComplete)
}()
}
// writeTicketsToStream writes the given session tickets to the given stream.
func (t *ticketSender) writeTicketsToStream(stream ticketStream, sessionTickets [][]byte) error {
if err := stream.Send(
&s2apb.SessionReq{
ReqOneof: &s2apb.SessionReq_ResumptionTicket{
ResumptionTicket: &s2apb.ResumptionTicketReq{
InBytes: sessionTickets,
ConnectionId: t.connectionID,
LocalIdentity: t.localIdentity,
},
},
AuthMechanisms: t.getAuthMechanisms(),
},
); err != nil {
return err
}
sessionResp, err := stream.Recv()
if err != nil {
return err
}
if sessionResp.GetStatus().GetCode() != uint32(codes.OK) {
return fmt.Errorf("s2a session ticket response had error status: %v, %v",
sessionResp.GetStatus().GetCode(), sessionResp.GetStatus().GetDetails())
}
return nil
}
func (t *ticketSender) getAuthMechanisms() []*s2apb.AuthenticationMechanism {
if t.tokenManager == nil {
return nil
}
// First handle the special case when no local identity has been provided
// by the application. In this case, an AuthenticationMechanism with no local
// identity will be sent.
if t.localIdentity == nil {
token, err := t.tokenManager.DefaultToken()
if err != nil {
grpclog.Infof("unable to get token for empty local identity: %v", err)
return nil
}
return []*s2apb.AuthenticationMechanism{
{
MechanismOneof: &s2apb.AuthenticationMechanism_Token{
Token: token,
},
},
}
}
// Next, handle the case where the application (or the S2A) has specified
// a local identity.
token, err := t.tokenManager.Token(t.localIdentity)
if err != nil {
grpclog.Infof("unable to get token for local identity %v: %v", t.localIdentity, err)
return nil
}
return []*s2apb.AuthenticationMechanism{
{
Identity: t.localIdentity,
MechanismOneof: &s2apb.AuthenticationMechanism_Token{
Token: token,
},
},
}
}

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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package tokenmanager provides tokens for authenticating to S2A.
package tokenmanager
import (
"fmt"
"os"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
)
const (
s2aAccessTokenEnvironmentVariable = "S2A_ACCESS_TOKEN"
)
// AccessTokenManager manages tokens for authenticating to S2A.
type AccessTokenManager interface {
// DefaultToken returns a token that an application with no specified local
// identity must use to authenticate to S2A.
DefaultToken() (token string, err error)
// Token returns a token that an application with local identity equal to
// identity must use to authenticate to S2A.
Token(identity *commonpb.Identity) (token string, err error)
}
type singleTokenAccessTokenManager struct {
token string
}
// NewSingleTokenAccessTokenManager returns a new AccessTokenManager instance
// that will always manage the same token.
//
// The token to be managed is read from the s2aAccessTokenEnvironmentVariable
// environment variable. If this environment variable is not set, then this
// function returns an error.
func NewSingleTokenAccessTokenManager() (AccessTokenManager, error) {
token, variableExists := os.LookupEnv(s2aAccessTokenEnvironmentVariable)
if !variableExists {
return nil, fmt.Errorf("%s environment variable is not set", s2aAccessTokenEnvironmentVariable)
}
return &singleTokenAccessTokenManager{token: token}, nil
}
// DefaultToken always returns the token managed by the
// singleTokenAccessTokenManager.
func (m *singleTokenAccessTokenManager) DefaultToken() (string, error) {
return m.token, nil
}
// Token always returns the token managed by the singleTokenAccessTokenManager.
func (m *singleTokenAccessTokenManager) Token(*commonpb.Identity) (string, error) {
return m.token, nil
}

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**This directory has the implementation of the S2Av2's gRPC-Go client libraries**

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vendor/github.com/google/s2a-go/internal/v2/certverifier/certverifier.go generated vendored Normal file
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/*
*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package certverifier offloads verifications to S2Av2.
package certverifier
import (
"crypto/x509"
"fmt"
"github.com/google/s2a-go/stream"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
s2av2pb "github.com/google/s2a-go/internal/proto/v2/s2a_go_proto"
)
// VerifyClientCertificateChain builds a SessionReq, sends it to S2Av2 and
// receives a SessionResp.
func VerifyClientCertificateChain(verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode, s2AStream stream.S2AStream) func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
return func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
// Offload verification to S2Av2.
if grpclog.V(1) {
grpclog.Infof("Sending request to S2Av2 for client peer cert chain validation.")
}
if err := s2AStream.Send(&s2av2pb.SessionReq{
ReqOneof: &s2av2pb.SessionReq_ValidatePeerCertificateChainReq{
ValidatePeerCertificateChainReq: &s2av2pb.ValidatePeerCertificateChainReq{
Mode: verificationMode,
PeerOneof: &s2av2pb.ValidatePeerCertificateChainReq_ClientPeer_{
ClientPeer: &s2av2pb.ValidatePeerCertificateChainReq_ClientPeer{
CertificateChain: rawCerts,
},
},
},
},
}); err != nil {
grpclog.Infof("Failed to send request to S2Av2 for client peer cert chain validation.")
return err
}
// Get the response from S2Av2.
resp, err := s2AStream.Recv()
if err != nil {
grpclog.Infof("Failed to receive client peer cert chain validation response from S2Av2.")
return err
}
// Parse the response.
if (resp.GetStatus() != nil) && (resp.GetStatus().Code != uint32(codes.OK)) {
return fmt.Errorf("failed to offload client cert verification to S2A: %d, %v", resp.GetStatus().Code, resp.GetStatus().Details)
}
if resp.GetValidatePeerCertificateChainResp().ValidationResult != s2av2pb.ValidatePeerCertificateChainResp_SUCCESS {
return fmt.Errorf("client cert verification failed: %v", resp.GetValidatePeerCertificateChainResp().ValidationDetails)
}
return nil
}
}
// VerifyServerCertificateChain builds a SessionReq, sends it to S2Av2 and
// receives a SessionResp.
func VerifyServerCertificateChain(hostname string, verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode, s2AStream stream.S2AStream, serverAuthorizationPolicy []byte) func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
return func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
// Offload verification to S2Av2.
if grpclog.V(1) {
grpclog.Infof("Sending request to S2Av2 for server peer cert chain validation.")
}
if err := s2AStream.Send(&s2av2pb.SessionReq{
ReqOneof: &s2av2pb.SessionReq_ValidatePeerCertificateChainReq{
ValidatePeerCertificateChainReq: &s2av2pb.ValidatePeerCertificateChainReq{
Mode: verificationMode,
PeerOneof: &s2av2pb.ValidatePeerCertificateChainReq_ServerPeer_{
ServerPeer: &s2av2pb.ValidatePeerCertificateChainReq_ServerPeer{
CertificateChain: rawCerts,
ServerHostname: hostname,
SerializedUnrestrictedClientPolicy: serverAuthorizationPolicy,
},
},
},
},
}); err != nil {
grpclog.Infof("Failed to send request to S2Av2 for server peer cert chain validation.")
return err
}
// Get the response from S2Av2.
resp, err := s2AStream.Recv()
if err != nil {
grpclog.Infof("Failed to receive server peer cert chain validation response from S2Av2.")
return err
}
// Parse the response.
if (resp.GetStatus() != nil) && (resp.GetStatus().Code != uint32(codes.OK)) {
return fmt.Errorf("failed to offload server cert verification to S2A: %d, %v", resp.GetStatus().Code, resp.GetStatus().Details)
}
if resp.GetValidatePeerCertificateChainResp().ValidationResult != s2av2pb.ValidatePeerCertificateChainResp_SUCCESS {
return fmt.Errorf("server cert verification failed: %v", resp.GetValidatePeerCertificateChainResp().ValidationDetails)
}
return nil
}
}

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vendor/github.com/google/s2a-go/internal/v2/remotesigner/remotesigner.go generated vendored Normal file
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/*
*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package remotesigner offloads private key operations to S2Av2.
package remotesigner
import (
"crypto"
"crypto/rsa"
"crypto/x509"
"fmt"
"io"
"github.com/google/s2a-go/stream"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
s2av2pb "github.com/google/s2a-go/internal/proto/v2/s2a_go_proto"
)
// remoteSigner implementes the crypto.Signer interface.
type remoteSigner struct {
leafCert *x509.Certificate
s2AStream stream.S2AStream
}
// New returns an instance of RemoteSigner, an implementation of the
// crypto.Signer interface.
func New(leafCert *x509.Certificate, s2AStream stream.S2AStream) crypto.Signer {
return &remoteSigner{leafCert, s2AStream}
}
func (s *remoteSigner) Public() crypto.PublicKey {
return s.leafCert.PublicKey
}
func (s *remoteSigner) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) (signature []byte, err error) {
signatureAlgorithm, err := getSignatureAlgorithm(opts, s.leafCert)
if err != nil {
return nil, err
}
req, err := getSignReq(signatureAlgorithm, digest)
if err != nil {
return nil, err
}
if grpclog.V(1) {
grpclog.Infof("Sending request to S2Av2 for signing operation.")
}
if err := s.s2AStream.Send(&s2av2pb.SessionReq{
ReqOneof: &s2av2pb.SessionReq_OffloadPrivateKeyOperationReq{
OffloadPrivateKeyOperationReq: req,
},
}); err != nil {
grpclog.Infof("Failed to send request to S2Av2 for signing operation.")
return nil, err
}
resp, err := s.s2AStream.Recv()
if err != nil {
grpclog.Infof("Failed to receive signing operation response from S2Av2.")
return nil, err
}
if (resp.GetStatus() != nil) && (resp.GetStatus().Code != uint32(codes.OK)) {
return nil, fmt.Errorf("failed to offload signing with private key to S2A: %d, %v", resp.GetStatus().Code, resp.GetStatus().Details)
}
return resp.GetOffloadPrivateKeyOperationResp().GetOutBytes(), nil
}
// getCert returns the leafCert field in s.
func (s *remoteSigner) getCert() *x509.Certificate {
return s.leafCert
}
// getStream returns the s2AStream field in s.
func (s *remoteSigner) getStream() stream.S2AStream {
return s.s2AStream
}
func getSignReq(signatureAlgorithm s2av2pb.SignatureAlgorithm, digest []byte) (*s2av2pb.OffloadPrivateKeyOperationReq, error) {
if (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PKCS1_SHA256) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ECDSA_SECP256R1_SHA256) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PSS_RSAE_SHA256) {
return &s2av2pb.OffloadPrivateKeyOperationReq{
Operation: s2av2pb.OffloadPrivateKeyOperationReq_SIGN,
SignatureAlgorithm: signatureAlgorithm,
InBytes: &s2av2pb.OffloadPrivateKeyOperationReq_Sha256Digest{
Sha256Digest: digest,
},
}, nil
} else if (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PKCS1_SHA384) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ECDSA_SECP384R1_SHA384) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PSS_RSAE_SHA384) {
return &s2av2pb.OffloadPrivateKeyOperationReq{
Operation: s2av2pb.OffloadPrivateKeyOperationReq_SIGN,
SignatureAlgorithm: signatureAlgorithm,
InBytes: &s2av2pb.OffloadPrivateKeyOperationReq_Sha384Digest{
Sha384Digest: digest,
},
}, nil
} else if (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PKCS1_SHA512) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ECDSA_SECP521R1_SHA512) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PSS_RSAE_SHA512) || (signatureAlgorithm == s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ED25519) {
return &s2av2pb.OffloadPrivateKeyOperationReq{
Operation: s2av2pb.OffloadPrivateKeyOperationReq_SIGN,
SignatureAlgorithm: signatureAlgorithm,
InBytes: &s2av2pb.OffloadPrivateKeyOperationReq_Sha512Digest{
Sha512Digest: digest,
},
}, nil
} else {
return nil, fmt.Errorf("unknown signature algorithm: %v", signatureAlgorithm)
}
}
// getSignatureAlgorithm returns the signature algorithm that S2A must use when
// performing a signing operation that has been offloaded by an application
// using the crypto/tls libraries.
func getSignatureAlgorithm(opts crypto.SignerOpts, leafCert *x509.Certificate) (s2av2pb.SignatureAlgorithm, error) {
if opts == nil || leafCert == nil {
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_UNSPECIFIED, fmt.Errorf("unknown signature algorithm")
}
switch leafCert.PublicKeyAlgorithm {
case x509.RSA:
if rsaPSSOpts, ok := opts.(*rsa.PSSOptions); ok {
return rsaPSSAlgorithm(rsaPSSOpts)
}
return rsaPPKCS1Algorithm(opts)
case x509.ECDSA:
return ecdsaAlgorithm(opts)
case x509.Ed25519:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ED25519, nil
default:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_UNSPECIFIED, fmt.Errorf("unknown signature algorithm: %q", leafCert.PublicKeyAlgorithm)
}
}
func rsaPSSAlgorithm(opts *rsa.PSSOptions) (s2av2pb.SignatureAlgorithm, error) {
switch opts.HashFunc() {
case crypto.SHA256:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PSS_RSAE_SHA256, nil
case crypto.SHA384:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PSS_RSAE_SHA384, nil
case crypto.SHA512:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PSS_RSAE_SHA512, nil
default:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_UNSPECIFIED, fmt.Errorf("unknown signature algorithm")
}
}
func rsaPPKCS1Algorithm(opts crypto.SignerOpts) (s2av2pb.SignatureAlgorithm, error) {
switch opts.HashFunc() {
case crypto.SHA256:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PKCS1_SHA256, nil
case crypto.SHA384:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PKCS1_SHA384, nil
case crypto.SHA512:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_RSA_PKCS1_SHA512, nil
default:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_UNSPECIFIED, fmt.Errorf("unknown signature algorithm")
}
}
func ecdsaAlgorithm(opts crypto.SignerOpts) (s2av2pb.SignatureAlgorithm, error) {
switch opts.HashFunc() {
case crypto.SHA256:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ECDSA_SECP256R1_SHA256, nil
case crypto.SHA384:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ECDSA_SECP384R1_SHA384, nil
case crypto.SHA512:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_ECDSA_SECP521R1_SHA512, nil
default:
return s2av2pb.SignatureAlgorithm_S2A_SSL_SIGN_UNSPECIFIED, fmt.Errorf("unknown signature algorithm")
}
}

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/*
*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package v2 provides the S2Av2 transport credentials used by a gRPC
// application.
package v2
import (
"context"
"crypto/tls"
"errors"
"net"
"os"
"time"
"github.com/golang/protobuf/proto"
"github.com/google/s2a-go/fallback"
"github.com/google/s2a-go/internal/handshaker/service"
"github.com/google/s2a-go/internal/tokenmanager"
"github.com/google/s2a-go/internal/v2/tlsconfigstore"
"github.com/google/s2a-go/stream"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
commonpbv1 "github.com/google/s2a-go/internal/proto/common_go_proto"
s2av2pb "github.com/google/s2a-go/internal/proto/v2/s2a_go_proto"
)
const (
s2aSecurityProtocol = "tls"
defaultS2ATimeout = 3 * time.Second
)
// An environment variable, which sets the timeout enforced on the connection to the S2A service for handshake.
const s2aTimeoutEnv = "S2A_TIMEOUT"
type s2av2TransportCreds struct {
info *credentials.ProtocolInfo
isClient bool
serverName string
s2av2Address string
tokenManager *tokenmanager.AccessTokenManager
// localIdentity should only be used by the client.
localIdentity *commonpbv1.Identity
// localIdentities should only be used by the server.
localIdentities []*commonpbv1.Identity
verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode
fallbackClientHandshake fallback.ClientHandshake
getS2AStream func(ctx context.Context, s2av2Address string) (stream.S2AStream, error)
serverAuthorizationPolicy []byte
}
// NewClientCreds returns a client-side transport credentials object that uses
// the S2Av2 to establish a secure connection with a server.
func NewClientCreds(s2av2Address string, localIdentity *commonpbv1.Identity, verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode, fallbackClientHandshakeFunc fallback.ClientHandshake, getS2AStream func(ctx context.Context, s2av2Address string) (stream.S2AStream, error), serverAuthorizationPolicy []byte) (credentials.TransportCredentials, error) {
// Create an AccessTokenManager instance to use to authenticate to S2Av2.
accessTokenManager, err := tokenmanager.NewSingleTokenAccessTokenManager()
creds := &s2av2TransportCreds{
info: &credentials.ProtocolInfo{
SecurityProtocol: s2aSecurityProtocol,
},
isClient: true,
serverName: "",
s2av2Address: s2av2Address,
localIdentity: localIdentity,
verificationMode: verificationMode,
fallbackClientHandshake: fallbackClientHandshakeFunc,
getS2AStream: getS2AStream,
serverAuthorizationPolicy: serverAuthorizationPolicy,
}
if err != nil {
creds.tokenManager = nil
} else {
creds.tokenManager = &accessTokenManager
}
if grpclog.V(1) {
grpclog.Info("Created client S2Av2 transport credentials.")
}
return creds, nil
}
// NewServerCreds returns a server-side transport credentials object that uses
// the S2Av2 to establish a secure connection with a client.
func NewServerCreds(s2av2Address string, localIdentities []*commonpbv1.Identity, verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode, getS2AStream func(ctx context.Context, s2av2Address string) (stream.S2AStream, error)) (credentials.TransportCredentials, error) {
// Create an AccessTokenManager instance to use to authenticate to S2Av2.
accessTokenManager, err := tokenmanager.NewSingleTokenAccessTokenManager()
creds := &s2av2TransportCreds{
info: &credentials.ProtocolInfo{
SecurityProtocol: s2aSecurityProtocol,
},
isClient: false,
s2av2Address: s2av2Address,
localIdentities: localIdentities,
verificationMode: verificationMode,
getS2AStream: getS2AStream,
}
if err != nil {
creds.tokenManager = nil
} else {
creds.tokenManager = &accessTokenManager
}
if grpclog.V(1) {
grpclog.Info("Created server S2Av2 transport credentials.")
}
return creds, nil
}
// ClientHandshake performs a client-side mTLS handshake using the S2Av2.
func (c *s2av2TransportCreds) ClientHandshake(ctx context.Context, serverAuthority string, rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
if !c.isClient {
return nil, nil, errors.New("client handshake called using server transport credentials")
}
// Remove the port from serverAuthority.
serverName := removeServerNamePort(serverAuthority)
timeoutCtx, cancel := context.WithTimeout(ctx, GetS2ATimeout())
defer cancel()
s2AStream, err := createStream(timeoutCtx, c.s2av2Address, c.getS2AStream)
if err != nil {
grpclog.Infof("Failed to connect to S2Av2: %v", err)
if c.fallbackClientHandshake != nil {
return c.fallbackClientHandshake(ctx, serverAuthority, rawConn, err)
}
return nil, nil, err
}
defer s2AStream.CloseSend()
if grpclog.V(1) {
grpclog.Infof("Connected to S2Av2.")
}
var config *tls.Config
var tokenManager tokenmanager.AccessTokenManager
if c.tokenManager == nil {
tokenManager = nil
} else {
tokenManager = *c.tokenManager
}
if c.serverName == "" {
config, err = tlsconfigstore.GetTLSConfigurationForClient(serverName, s2AStream, tokenManager, c.localIdentity, c.verificationMode, c.serverAuthorizationPolicy)
if err != nil {
grpclog.Info("Failed to get client TLS config from S2Av2: %v", err)
if c.fallbackClientHandshake != nil {
return c.fallbackClientHandshake(ctx, serverAuthority, rawConn, err)
}
return nil, nil, err
}
} else {
config, err = tlsconfigstore.GetTLSConfigurationForClient(c.serverName, s2AStream, tokenManager, c.localIdentity, c.verificationMode, c.serverAuthorizationPolicy)
if err != nil {
grpclog.Info("Failed to get client TLS config from S2Av2: %v", err)
if c.fallbackClientHandshake != nil {
return c.fallbackClientHandshake(ctx, serverAuthority, rawConn, err)
}
return nil, nil, err
}
}
if grpclog.V(1) {
grpclog.Infof("Got client TLS config from S2Av2.")
}
creds := credentials.NewTLS(config)
conn, authInfo, err := creds.ClientHandshake(ctx, serverName, rawConn)
if err != nil {
grpclog.Infof("Failed to do client handshake using S2Av2: %v", err)
if c.fallbackClientHandshake != nil {
return c.fallbackClientHandshake(ctx, serverAuthority, rawConn, err)
}
return nil, nil, err
}
grpclog.Infof("Successfully done client handshake using S2Av2 to: %s", serverName)
return conn, authInfo, err
}
// ServerHandshake performs a server-side mTLS handshake using the S2Av2.
func (c *s2av2TransportCreds) ServerHandshake(rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
if c.isClient {
return nil, nil, errors.New("server handshake called using client transport credentials")
}
ctx, cancel := context.WithTimeout(context.Background(), GetS2ATimeout())
defer cancel()
s2AStream, err := createStream(ctx, c.s2av2Address, c.getS2AStream)
if err != nil {
grpclog.Infof("Failed to connect to S2Av2: %v", err)
return nil, nil, err
}
defer s2AStream.CloseSend()
if grpclog.V(1) {
grpclog.Infof("Connected to S2Av2.")
}
var tokenManager tokenmanager.AccessTokenManager
if c.tokenManager == nil {
tokenManager = nil
} else {
tokenManager = *c.tokenManager
}
config, err := tlsconfigstore.GetTLSConfigurationForServer(s2AStream, tokenManager, c.localIdentities, c.verificationMode)
if err != nil {
grpclog.Infof("Failed to get server TLS config from S2Av2: %v", err)
return nil, nil, err
}
if grpclog.V(1) {
grpclog.Infof("Got server TLS config from S2Av2.")
}
creds := credentials.NewTLS(config)
return creds.ServerHandshake(rawConn)
}
// Info returns protocol info of s2av2TransportCreds.
func (c *s2av2TransportCreds) Info() credentials.ProtocolInfo {
return *c.info
}
// Clone makes a deep copy of s2av2TransportCreds.
func (c *s2av2TransportCreds) Clone() credentials.TransportCredentials {
info := *c.info
serverName := c.serverName
fallbackClientHandshake := c.fallbackClientHandshake
s2av2Address := c.s2av2Address
var tokenManager tokenmanager.AccessTokenManager
if c.tokenManager == nil {
tokenManager = nil
} else {
tokenManager = *c.tokenManager
}
verificationMode := c.verificationMode
var localIdentity *commonpbv1.Identity
if c.localIdentity != nil {
localIdentity = proto.Clone(c.localIdentity).(*commonpbv1.Identity)
}
var localIdentities []*commonpbv1.Identity
if c.localIdentities != nil {
localIdentities = make([]*commonpbv1.Identity, len(c.localIdentities))
for i, localIdentity := range c.localIdentities {
localIdentities[i] = proto.Clone(localIdentity).(*commonpbv1.Identity)
}
}
creds := &s2av2TransportCreds{
info: &info,
isClient: c.isClient,
serverName: serverName,
fallbackClientHandshake: fallbackClientHandshake,
s2av2Address: s2av2Address,
localIdentity: localIdentity,
localIdentities: localIdentities,
verificationMode: verificationMode,
}
if c.tokenManager == nil {
creds.tokenManager = nil
} else {
creds.tokenManager = &tokenManager
}
return creds
}
// NewClientTLSConfig returns a tls.Config instance that uses S2Av2 to establish a TLS connection as
// a client. The tls.Config MUST only be used to establish a single TLS connection.
func NewClientTLSConfig(
ctx context.Context,
s2av2Address string,
tokenManager tokenmanager.AccessTokenManager,
verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode,
serverName string,
serverAuthorizationPolicy []byte) (*tls.Config, error) {
s2AStream, err := createStream(ctx, s2av2Address, nil)
if err != nil {
grpclog.Infof("Failed to connect to S2Av2: %v", err)
return nil, err
}
return tlsconfigstore.GetTLSConfigurationForClient(removeServerNamePort(serverName), s2AStream, tokenManager, nil, verificationMode, serverAuthorizationPolicy)
}
// OverrideServerName sets the ServerName in the s2av2TransportCreds protocol
// info. The ServerName MUST be a hostname.
func (c *s2av2TransportCreds) OverrideServerName(serverNameOverride string) error {
serverName := removeServerNamePort(serverNameOverride)
c.info.ServerName = serverName
c.serverName = serverName
return nil
}
// Remove the trailing port from server name.
func removeServerNamePort(serverName string) string {
name, _, err := net.SplitHostPort(serverName)
if err != nil {
name = serverName
}
return name
}
type s2AGrpcStream struct {
stream s2av2pb.S2AService_SetUpSessionClient
}
func (x s2AGrpcStream) Send(m *s2av2pb.SessionReq) error {
return x.stream.Send(m)
}
func (x s2AGrpcStream) Recv() (*s2av2pb.SessionResp, error) {
return x.stream.Recv()
}
func (x s2AGrpcStream) CloseSend() error {
return x.stream.CloseSend()
}
func createStream(ctx context.Context, s2av2Address string, getS2AStream func(ctx context.Context, s2av2Address string) (stream.S2AStream, error)) (stream.S2AStream, error) {
if getS2AStream != nil {
return getS2AStream(ctx, s2av2Address)
}
// TODO(rmehta19): Consider whether to close the connection to S2Av2.
conn, err := service.Dial(s2av2Address)
if err != nil {
return nil, err
}
client := s2av2pb.NewS2AServiceClient(conn)
gRPCStream, err := client.SetUpSession(ctx, []grpc.CallOption{}...)
if err != nil {
return nil, err
}
return &s2AGrpcStream{
stream: gRPCStream,
}, nil
}
// GetS2ATimeout returns the timeout enforced on the connection to the S2A service for handshake.
func GetS2ATimeout() time.Duration {
timeout, err := time.ParseDuration(os.Getenv(s2aTimeoutEnv))
if err != nil {
return defaultS2ATimeout
}
return timeout
}

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/*
*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package tlsconfigstore offloads operations to S2Av2.
package tlsconfigstore
import (
"crypto/tls"
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
"github.com/google/s2a-go/internal/tokenmanager"
"github.com/google/s2a-go/internal/v2/certverifier"
"github.com/google/s2a-go/internal/v2/remotesigner"
"github.com/google/s2a-go/stream"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
commonpbv1 "github.com/google/s2a-go/internal/proto/common_go_proto"
commonpb "github.com/google/s2a-go/internal/proto/v2/common_go_proto"
s2av2pb "github.com/google/s2a-go/internal/proto/v2/s2a_go_proto"
)
const (
// HTTP/2
h2 = "h2"
)
// GetTLSConfigurationForClient returns a tls.Config instance for use by a client application.
func GetTLSConfigurationForClient(serverHostname string, s2AStream stream.S2AStream, tokenManager tokenmanager.AccessTokenManager, localIdentity *commonpbv1.Identity, verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode, serverAuthorizationPolicy []byte) (*tls.Config, error) {
authMechanisms := getAuthMechanisms(tokenManager, []*commonpbv1.Identity{localIdentity})
if grpclog.V(1) {
grpclog.Infof("Sending request to S2Av2 for client TLS config.")
}
// Send request to S2Av2 for config.
if err := s2AStream.Send(&s2av2pb.SessionReq{
LocalIdentity: localIdentity,
AuthenticationMechanisms: authMechanisms,
ReqOneof: &s2av2pb.SessionReq_GetTlsConfigurationReq{
GetTlsConfigurationReq: &s2av2pb.GetTlsConfigurationReq{
ConnectionSide: commonpb.ConnectionSide_CONNECTION_SIDE_CLIENT,
},
},
}); err != nil {
grpclog.Infof("Failed to send request to S2Av2 for client TLS config")
return nil, err
}
// Get the response containing config from S2Av2.
resp, err := s2AStream.Recv()
if err != nil {
grpclog.Infof("Failed to receive client TLS config response from S2Av2.")
return nil, err
}
// TODO(rmehta19): Add unit test for this if statement.
if (resp.GetStatus() != nil) && (resp.GetStatus().Code != uint32(codes.OK)) {
return nil, fmt.Errorf("failed to get TLS configuration from S2A: %d, %v", resp.GetStatus().Code, resp.GetStatus().Details)
}
// Extract TLS configiguration from SessionResp.
tlsConfig := resp.GetGetTlsConfigurationResp().GetClientTlsConfiguration()
var cert tls.Certificate
for i, v := range tlsConfig.CertificateChain {
// Populate Certificates field.
block, _ := pem.Decode([]byte(v))
if block == nil {
return nil, errors.New("certificate in CertificateChain obtained from S2Av2 is empty")
}
x509Cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
return nil, err
}
cert.Certificate = append(cert.Certificate, x509Cert.Raw)
if i == 0 {
cert.Leaf = x509Cert
}
}
if len(tlsConfig.CertificateChain) > 0 {
cert.PrivateKey = remotesigner.New(cert.Leaf, s2AStream)
if cert.PrivateKey == nil {
return nil, errors.New("failed to retrieve Private Key from Remote Signer Library")
}
}
minVersion, maxVersion, err := getTLSMinMaxVersionsClient(tlsConfig)
if err != nil {
return nil, err
}
// Create mTLS credentials for client.
config := &tls.Config{
VerifyPeerCertificate: certverifier.VerifyServerCertificateChain(serverHostname, verificationMode, s2AStream, serverAuthorizationPolicy),
ServerName: serverHostname,
InsecureSkipVerify: true, // NOLINT
ClientSessionCache: nil,
SessionTicketsDisabled: true,
MinVersion: minVersion,
MaxVersion: maxVersion,
NextProtos: []string{h2},
}
if len(tlsConfig.CertificateChain) > 0 {
config.Certificates = []tls.Certificate{cert}
}
return config, nil
}
// GetTLSConfigurationForServer returns a tls.Config instance for use by a server application.
func GetTLSConfigurationForServer(s2AStream stream.S2AStream, tokenManager tokenmanager.AccessTokenManager, localIdentities []*commonpbv1.Identity, verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode) (*tls.Config, error) {
return &tls.Config{
GetConfigForClient: ClientConfig(tokenManager, localIdentities, verificationMode, s2AStream),
}, nil
}
// ClientConfig builds a TLS config for a server to establish a secure
// connection with a client, based on SNI communicated during ClientHello.
// Ensures that server presents the correct certificate to establish a TLS
// connection.
func ClientConfig(tokenManager tokenmanager.AccessTokenManager, localIdentities []*commonpbv1.Identity, verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode, s2AStream stream.S2AStream) func(chi *tls.ClientHelloInfo) (*tls.Config, error) {
return func(chi *tls.ClientHelloInfo) (*tls.Config, error) {
tlsConfig, err := getServerConfigFromS2Av2(tokenManager, localIdentities, chi.ServerName, s2AStream)
if err != nil {
return nil, err
}
var cert tls.Certificate
for i, v := range tlsConfig.CertificateChain {
// Populate Certificates field.
block, _ := pem.Decode([]byte(v))
if block == nil {
return nil, errors.New("certificate in CertificateChain obtained from S2Av2 is empty")
}
x509Cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
return nil, err
}
cert.Certificate = append(cert.Certificate, x509Cert.Raw)
if i == 0 {
cert.Leaf = x509Cert
}
}
cert.PrivateKey = remotesigner.New(cert.Leaf, s2AStream)
if cert.PrivateKey == nil {
return nil, errors.New("failed to retrieve Private Key from Remote Signer Library")
}
minVersion, maxVersion, err := getTLSMinMaxVersionsServer(tlsConfig)
if err != nil {
return nil, err
}
clientAuth := getTLSClientAuthType(tlsConfig)
var cipherSuites []uint16
cipherSuites = getCipherSuites(tlsConfig.Ciphersuites)
// Create mTLS credentials for server.
return &tls.Config{
Certificates: []tls.Certificate{cert},
VerifyPeerCertificate: certverifier.VerifyClientCertificateChain(verificationMode, s2AStream),
ClientAuth: clientAuth,
CipherSuites: cipherSuites,
SessionTicketsDisabled: true,
MinVersion: minVersion,
MaxVersion: maxVersion,
NextProtos: []string{h2},
}, nil
}
}
func getCipherSuites(tlsConfigCipherSuites []commonpb.Ciphersuite) []uint16 {
var tlsGoCipherSuites []uint16
for _, v := range tlsConfigCipherSuites {
s := getTLSCipherSuite(v)
if s != 0xffff {
tlsGoCipherSuites = append(tlsGoCipherSuites, s)
}
}
return tlsGoCipherSuites
}
func getTLSCipherSuite(tlsCipherSuite commonpb.Ciphersuite) uint16 {
switch tlsCipherSuite {
case commonpb.Ciphersuite_CIPHERSUITE_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
return tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
case commonpb.Ciphersuite_CIPHERSUITE_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384:
return tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
case commonpb.Ciphersuite_CIPHERSUITE_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256:
return tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
case commonpb.Ciphersuite_CIPHERSUITE_ECDHE_RSA_WITH_AES_128_GCM_SHA256:
return tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
case commonpb.Ciphersuite_CIPHERSUITE_ECDHE_RSA_WITH_AES_256_GCM_SHA384:
return tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
case commonpb.Ciphersuite_CIPHERSUITE_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256:
return tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
default:
return 0xffff
}
}
func getServerConfigFromS2Av2(tokenManager tokenmanager.AccessTokenManager, localIdentities []*commonpbv1.Identity, sni string, s2AStream stream.S2AStream) (*s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration, error) {
authMechanisms := getAuthMechanisms(tokenManager, localIdentities)
var locID *commonpbv1.Identity
if localIdentities != nil {
locID = localIdentities[0]
}
if err := s2AStream.Send(&s2av2pb.SessionReq{
LocalIdentity: locID,
AuthenticationMechanisms: authMechanisms,
ReqOneof: &s2av2pb.SessionReq_GetTlsConfigurationReq{
GetTlsConfigurationReq: &s2av2pb.GetTlsConfigurationReq{
ConnectionSide: commonpb.ConnectionSide_CONNECTION_SIDE_SERVER,
Sni: sni,
},
},
}); err != nil {
return nil, err
}
resp, err := s2AStream.Recv()
if err != nil {
return nil, err
}
// TODO(rmehta19): Add unit test for this if statement.
if (resp.GetStatus() != nil) && (resp.GetStatus().Code != uint32(codes.OK)) {
return nil, fmt.Errorf("failed to get TLS configuration from S2A: %d, %v", resp.GetStatus().Code, resp.GetStatus().Details)
}
return resp.GetGetTlsConfigurationResp().GetServerTlsConfiguration(), nil
}
func getTLSClientAuthType(tlsConfig *s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration) tls.ClientAuthType {
var clientAuth tls.ClientAuthType
switch x := tlsConfig.RequestClientCertificate; x {
case s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration_DONT_REQUEST_CLIENT_CERTIFICATE:
clientAuth = tls.NoClientCert
case s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration_REQUEST_CLIENT_CERTIFICATE_BUT_DONT_VERIFY:
clientAuth = tls.RequestClientCert
case s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration_REQUEST_CLIENT_CERTIFICATE_AND_VERIFY:
// This case actually maps to tls.VerifyClientCertIfGiven. However this
// mapping triggers normal verification, followed by custom verification,
// specified in VerifyPeerCertificate. To bypass normal verification, and
// only do custom verification we set clientAuth to RequireAnyClientCert or
// RequestClientCert. See https://github.com/google/s2a-go/pull/43 for full
// discussion.
clientAuth = tls.RequireAnyClientCert
case s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration_REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_BUT_DONT_VERIFY:
clientAuth = tls.RequireAnyClientCert
case s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration_REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_AND_VERIFY:
// This case actually maps to tls.RequireAndVerifyClientCert. However this
// mapping triggers normal verification, followed by custom verification,
// specified in VerifyPeerCertificate. To bypass normal verification, and
// only do custom verification we set clientAuth to RequireAnyClientCert or
// RequestClientCert. See https://github.com/google/s2a-go/pull/43 for full
// discussion.
clientAuth = tls.RequireAnyClientCert
default:
clientAuth = tls.RequireAnyClientCert
}
return clientAuth
}
func getAuthMechanisms(tokenManager tokenmanager.AccessTokenManager, localIdentities []*commonpbv1.Identity) []*s2av2pb.AuthenticationMechanism {
if tokenManager == nil {
return nil
}
if len(localIdentities) == 0 {
token, err := tokenManager.DefaultToken()
if err != nil {
grpclog.Infof("Unable to get token for empty local identity: %v", err)
return nil
}
return []*s2av2pb.AuthenticationMechanism{
{
MechanismOneof: &s2av2pb.AuthenticationMechanism_Token{
Token: token,
},
},
}
}
var authMechanisms []*s2av2pb.AuthenticationMechanism
for _, localIdentity := range localIdentities {
if localIdentity == nil {
token, err := tokenManager.DefaultToken()
if err != nil {
grpclog.Infof("Unable to get default token for local identity %v: %v", localIdentity, err)
continue
}
authMechanisms = append(authMechanisms, &s2av2pb.AuthenticationMechanism{
Identity: localIdentity,
MechanismOneof: &s2av2pb.AuthenticationMechanism_Token{
Token: token,
},
})
} else {
token, err := tokenManager.Token(localIdentity)
if err != nil {
grpclog.Infof("Unable to get token for local identity %v: %v", localIdentity, err)
continue
}
authMechanisms = append(authMechanisms, &s2av2pb.AuthenticationMechanism{
Identity: localIdentity,
MechanismOneof: &s2av2pb.AuthenticationMechanism_Token{
Token: token,
},
})
}
}
return authMechanisms
}
// TODO(rmehta19): refactor switch statements into a helper function.
func getTLSMinMaxVersionsClient(tlsConfig *s2av2pb.GetTlsConfigurationResp_ClientTlsConfiguration) (uint16, uint16, error) {
// Map S2Av2 TLSVersion to consts defined in tls package.
var minVersion uint16
var maxVersion uint16
switch x := tlsConfig.MinTlsVersion; x {
case commonpb.TLSVersion_TLS_VERSION_1_0:
minVersion = tls.VersionTLS10
case commonpb.TLSVersion_TLS_VERSION_1_1:
minVersion = tls.VersionTLS11
case commonpb.TLSVersion_TLS_VERSION_1_2:
minVersion = tls.VersionTLS12
case commonpb.TLSVersion_TLS_VERSION_1_3:
minVersion = tls.VersionTLS13
default:
return minVersion, maxVersion, fmt.Errorf("S2Av2 provided invalid MinTlsVersion: %v", x)
}
switch x := tlsConfig.MaxTlsVersion; x {
case commonpb.TLSVersion_TLS_VERSION_1_0:
maxVersion = tls.VersionTLS10
case commonpb.TLSVersion_TLS_VERSION_1_1:
maxVersion = tls.VersionTLS11
case commonpb.TLSVersion_TLS_VERSION_1_2:
maxVersion = tls.VersionTLS12
case commonpb.TLSVersion_TLS_VERSION_1_3:
maxVersion = tls.VersionTLS13
default:
return minVersion, maxVersion, fmt.Errorf("S2Av2 provided invalid MaxTlsVersion: %v", x)
}
if minVersion > maxVersion {
return minVersion, maxVersion, errors.New("S2Av2 provided minVersion > maxVersion")
}
return minVersion, maxVersion, nil
}
func getTLSMinMaxVersionsServer(tlsConfig *s2av2pb.GetTlsConfigurationResp_ServerTlsConfiguration) (uint16, uint16, error) {
// Map S2Av2 TLSVersion to consts defined in tls package.
var minVersion uint16
var maxVersion uint16
switch x := tlsConfig.MinTlsVersion; x {
case commonpb.TLSVersion_TLS_VERSION_1_0:
minVersion = tls.VersionTLS10
case commonpb.TLSVersion_TLS_VERSION_1_1:
minVersion = tls.VersionTLS11
case commonpb.TLSVersion_TLS_VERSION_1_2:
minVersion = tls.VersionTLS12
case commonpb.TLSVersion_TLS_VERSION_1_3:
minVersion = tls.VersionTLS13
default:
return minVersion, maxVersion, fmt.Errorf("S2Av2 provided invalid MinTlsVersion: %v", x)
}
switch x := tlsConfig.MaxTlsVersion; x {
case commonpb.TLSVersion_TLS_VERSION_1_0:
maxVersion = tls.VersionTLS10
case commonpb.TLSVersion_TLS_VERSION_1_1:
maxVersion = tls.VersionTLS11
case commonpb.TLSVersion_TLS_VERSION_1_2:
maxVersion = tls.VersionTLS12
case commonpb.TLSVersion_TLS_VERSION_1_3:
maxVersion = tls.VersionTLS13
default:
return minVersion, maxVersion, fmt.Errorf("S2Av2 provided invalid MaxTlsVersion: %v", x)
}
if minVersion > maxVersion {
return minVersion, maxVersion, errors.New("S2Av2 provided minVersion > maxVersion")
}
return minVersion, maxVersion, nil
}

412
vendor/github.com/google/s2a-go/s2a.go generated vendored Normal file
View file

@ -0,0 +1,412 @@
/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package s2a provides the S2A transport credentials used by a gRPC
// application.
package s2a
import (
"context"
"crypto/tls"
"errors"
"fmt"
"net"
"sync"
"time"
"github.com/golang/protobuf/proto"
"github.com/google/s2a-go/fallback"
"github.com/google/s2a-go/internal/handshaker"
"github.com/google/s2a-go/internal/handshaker/service"
"github.com/google/s2a-go/internal/tokenmanager"
"github.com/google/s2a-go/internal/v2"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
s2av2pb "github.com/google/s2a-go/internal/proto/v2/s2a_go_proto"
)
const (
s2aSecurityProtocol = "tls"
// defaultTimeout specifies the default server handshake timeout.
defaultTimeout = 30.0 * time.Second
)
// s2aTransportCreds are the transport credentials required for establishing
// a secure connection using the S2A. They implement the
// credentials.TransportCredentials interface.
type s2aTransportCreds struct {
info *credentials.ProtocolInfo
minTLSVersion commonpb.TLSVersion
maxTLSVersion commonpb.TLSVersion
// tlsCiphersuites contains the ciphersuites used in the S2A connection.
// Note that these are currently unconfigurable.
tlsCiphersuites []commonpb.Ciphersuite
// localIdentity should only be used by the client.
localIdentity *commonpb.Identity
// localIdentities should only be used by the server.
localIdentities []*commonpb.Identity
// targetIdentities should only be used by the client.
targetIdentities []*commonpb.Identity
isClient bool
s2aAddr string
ensureProcessSessionTickets *sync.WaitGroup
}
// NewClientCreds returns a client-side transport credentials object that uses
// the S2A to establish a secure connection with a server.
func NewClientCreds(opts *ClientOptions) (credentials.TransportCredentials, error) {
if opts == nil {
return nil, errors.New("nil client options")
}
var targetIdentities []*commonpb.Identity
for _, targetIdentity := range opts.TargetIdentities {
protoTargetIdentity, err := toProtoIdentity(targetIdentity)
if err != nil {
return nil, err
}
targetIdentities = append(targetIdentities, protoTargetIdentity)
}
localIdentity, err := toProtoIdentity(opts.LocalIdentity)
if err != nil {
return nil, err
}
if opts.EnableLegacyMode {
return &s2aTransportCreds{
info: &credentials.ProtocolInfo{
SecurityProtocol: s2aSecurityProtocol,
},
minTLSVersion: commonpb.TLSVersion_TLS1_3,
maxTLSVersion: commonpb.TLSVersion_TLS1_3,
tlsCiphersuites: []commonpb.Ciphersuite{
commonpb.Ciphersuite_AES_128_GCM_SHA256,
commonpb.Ciphersuite_AES_256_GCM_SHA384,
commonpb.Ciphersuite_CHACHA20_POLY1305_SHA256,
},
localIdentity: localIdentity,
targetIdentities: targetIdentities,
isClient: true,
s2aAddr: opts.S2AAddress,
ensureProcessSessionTickets: opts.EnsureProcessSessionTickets,
}, nil
}
verificationMode := getVerificationMode(opts.VerificationMode)
var fallbackFunc fallback.ClientHandshake
if opts.FallbackOpts != nil && opts.FallbackOpts.FallbackClientHandshakeFunc != nil {
fallbackFunc = opts.FallbackOpts.FallbackClientHandshakeFunc
}
return v2.NewClientCreds(opts.S2AAddress, localIdentity, verificationMode, fallbackFunc, opts.getS2AStream, opts.serverAuthorizationPolicy)
}
// NewServerCreds returns a server-side transport credentials object that uses
// the S2A to establish a secure connection with a client.
func NewServerCreds(opts *ServerOptions) (credentials.TransportCredentials, error) {
if opts == nil {
return nil, errors.New("nil server options")
}
var localIdentities []*commonpb.Identity
for _, localIdentity := range opts.LocalIdentities {
protoLocalIdentity, err := toProtoIdentity(localIdentity)
if err != nil {
return nil, err
}
localIdentities = append(localIdentities, protoLocalIdentity)
}
if opts.EnableLegacyMode {
return &s2aTransportCreds{
info: &credentials.ProtocolInfo{
SecurityProtocol: s2aSecurityProtocol,
},
minTLSVersion: commonpb.TLSVersion_TLS1_3,
maxTLSVersion: commonpb.TLSVersion_TLS1_3,
tlsCiphersuites: []commonpb.Ciphersuite{
commonpb.Ciphersuite_AES_128_GCM_SHA256,
commonpb.Ciphersuite_AES_256_GCM_SHA384,
commonpb.Ciphersuite_CHACHA20_POLY1305_SHA256,
},
localIdentities: localIdentities,
isClient: false,
s2aAddr: opts.S2AAddress,
}, nil
}
verificationMode := getVerificationMode(opts.VerificationMode)
return v2.NewServerCreds(opts.S2AAddress, localIdentities, verificationMode, opts.getS2AStream)
}
// ClientHandshake initiates a client-side TLS handshake using the S2A.
func (c *s2aTransportCreds) ClientHandshake(ctx context.Context, serverAuthority string, rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
if !c.isClient {
return nil, nil, errors.New("client handshake called using server transport credentials")
}
// Connect to the S2A.
hsConn, err := service.Dial(c.s2aAddr)
if err != nil {
grpclog.Infof("Failed to connect to S2A: %v", err)
return nil, nil, err
}
var cancel context.CancelFunc
ctx, cancel = context.WithCancel(ctx)
defer cancel()
opts := &handshaker.ClientHandshakerOptions{
MinTLSVersion: c.minTLSVersion,
MaxTLSVersion: c.maxTLSVersion,
TLSCiphersuites: c.tlsCiphersuites,
TargetIdentities: c.targetIdentities,
LocalIdentity: c.localIdentity,
TargetName: serverAuthority,
EnsureProcessSessionTickets: c.ensureProcessSessionTickets,
}
chs, err := handshaker.NewClientHandshaker(ctx, hsConn, rawConn, c.s2aAddr, opts)
if err != nil {
grpclog.Infof("Call to handshaker.NewClientHandshaker failed: %v", err)
return nil, nil, err
}
defer func() {
if err != nil {
if closeErr := chs.Close(); closeErr != nil {
grpclog.Infof("Close failed unexpectedly: %v", err)
err = fmt.Errorf("%v: close unexpectedly failed: %v", err, closeErr)
}
}
}()
secConn, authInfo, err := chs.ClientHandshake(context.Background())
if err != nil {
grpclog.Infof("Handshake failed: %v", err)
return nil, nil, err
}
return secConn, authInfo, nil
}
// ServerHandshake initiates a server-side TLS handshake using the S2A.
func (c *s2aTransportCreds) ServerHandshake(rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
if c.isClient {
return nil, nil, errors.New("server handshake called using client transport credentials")
}
// Connect to the S2A.
hsConn, err := service.Dial(c.s2aAddr)
if err != nil {
grpclog.Infof("Failed to connect to S2A: %v", err)
return nil, nil, err
}
ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
defer cancel()
opts := &handshaker.ServerHandshakerOptions{
MinTLSVersion: c.minTLSVersion,
MaxTLSVersion: c.maxTLSVersion,
TLSCiphersuites: c.tlsCiphersuites,
LocalIdentities: c.localIdentities,
}
shs, err := handshaker.NewServerHandshaker(ctx, hsConn, rawConn, c.s2aAddr, opts)
if err != nil {
grpclog.Infof("Call to handshaker.NewServerHandshaker failed: %v", err)
return nil, nil, err
}
defer func() {
if err != nil {
if closeErr := shs.Close(); closeErr != nil {
grpclog.Infof("Close failed unexpectedly: %v", err)
err = fmt.Errorf("%v: close unexpectedly failed: %v", err, closeErr)
}
}
}()
secConn, authInfo, err := shs.ServerHandshake(context.Background())
if err != nil {
grpclog.Infof("Handshake failed: %v", err)
return nil, nil, err
}
return secConn, authInfo, nil
}
func (c *s2aTransportCreds) Info() credentials.ProtocolInfo {
return *c.info
}
func (c *s2aTransportCreds) Clone() credentials.TransportCredentials {
info := *c.info
var localIdentity *commonpb.Identity
if c.localIdentity != nil {
localIdentity = proto.Clone(c.localIdentity).(*commonpb.Identity)
}
var localIdentities []*commonpb.Identity
if c.localIdentities != nil {
localIdentities = make([]*commonpb.Identity, len(c.localIdentities))
for i, localIdentity := range c.localIdentities {
localIdentities[i] = proto.Clone(localIdentity).(*commonpb.Identity)
}
}
var targetIdentities []*commonpb.Identity
if c.targetIdentities != nil {
targetIdentities = make([]*commonpb.Identity, len(c.targetIdentities))
for i, targetIdentity := range c.targetIdentities {
targetIdentities[i] = proto.Clone(targetIdentity).(*commonpb.Identity)
}
}
return &s2aTransportCreds{
info: &info,
minTLSVersion: c.minTLSVersion,
maxTLSVersion: c.maxTLSVersion,
tlsCiphersuites: c.tlsCiphersuites,
localIdentity: localIdentity,
localIdentities: localIdentities,
targetIdentities: targetIdentities,
isClient: c.isClient,
s2aAddr: c.s2aAddr,
}
}
func (c *s2aTransportCreds) OverrideServerName(serverNameOverride string) error {
c.info.ServerName = serverNameOverride
return nil
}
// TLSClientConfigOptions specifies parameters for creating client TLS config.
type TLSClientConfigOptions struct {
// ServerName is required by s2a as the expected name when verifying the hostname found in server's certificate.
// tlsConfig, _ := factory.Build(ctx, &s2a.TLSClientConfigOptions{
// ServerName: "example.com",
// })
ServerName string
}
// TLSClientConfigFactory defines the interface for a client TLS config factory.
type TLSClientConfigFactory interface {
Build(ctx context.Context, opts *TLSClientConfigOptions) (*tls.Config, error)
}
// NewTLSClientConfigFactory returns an instance of s2aTLSClientConfigFactory.
func NewTLSClientConfigFactory(opts *ClientOptions) (TLSClientConfigFactory, error) {
if opts == nil {
return nil, fmt.Errorf("opts must be non-nil")
}
if opts.EnableLegacyMode {
return nil, fmt.Errorf("NewTLSClientConfigFactory only supports S2Av2")
}
tokenManager, err := tokenmanager.NewSingleTokenAccessTokenManager()
if err != nil {
// The only possible error is: access token not set in the environment,
// which is okay in environments other than serverless.
grpclog.Infof("Access token manager not initialized: %v", err)
return &s2aTLSClientConfigFactory{
s2av2Address: opts.S2AAddress,
tokenManager: nil,
verificationMode: getVerificationMode(opts.VerificationMode),
serverAuthorizationPolicy: opts.serverAuthorizationPolicy,
}, nil
}
return &s2aTLSClientConfigFactory{
s2av2Address: opts.S2AAddress,
tokenManager: tokenManager,
verificationMode: getVerificationMode(opts.VerificationMode),
serverAuthorizationPolicy: opts.serverAuthorizationPolicy,
}, nil
}
type s2aTLSClientConfigFactory struct {
s2av2Address string
tokenManager tokenmanager.AccessTokenManager
verificationMode s2av2pb.ValidatePeerCertificateChainReq_VerificationMode
serverAuthorizationPolicy []byte
}
func (f *s2aTLSClientConfigFactory) Build(
ctx context.Context, opts *TLSClientConfigOptions) (*tls.Config, error) {
serverName := ""
if opts != nil && opts.ServerName != "" {
serverName = opts.ServerName
}
return v2.NewClientTLSConfig(ctx, f.s2av2Address, f.tokenManager, f.verificationMode, serverName, f.serverAuthorizationPolicy)
}
func getVerificationMode(verificationMode VerificationModeType) s2av2pb.ValidatePeerCertificateChainReq_VerificationMode {
switch verificationMode {
case ConnectToGoogle:
return s2av2pb.ValidatePeerCertificateChainReq_CONNECT_TO_GOOGLE
case Spiffe:
return s2av2pb.ValidatePeerCertificateChainReq_SPIFFE
default:
return s2av2pb.ValidatePeerCertificateChainReq_UNSPECIFIED
}
}
// NewS2ADialTLSContextFunc returns a dialer which establishes an MTLS connection using S2A.
// Example use with http.RoundTripper:
//
// dialTLSContext := s2a.NewS2aDialTLSContextFunc(&s2a.ClientOptions{
// S2AAddress: s2aAddress, // required
// })
// transport := http.DefaultTransport
// transport.DialTLSContext = dialTLSContext
func NewS2ADialTLSContextFunc(opts *ClientOptions) func(ctx context.Context, network, addr string) (net.Conn, error) {
return func(ctx context.Context, network, addr string) (net.Conn, error) {
fallback := func(err error) (net.Conn, error) {
if opts.FallbackOpts != nil && opts.FallbackOpts.FallbackDialer != nil &&
opts.FallbackOpts.FallbackDialer.Dialer != nil && opts.FallbackOpts.FallbackDialer.ServerAddr != "" {
fbDialer := opts.FallbackOpts.FallbackDialer
grpclog.Infof("fall back to dial: %s", fbDialer.ServerAddr)
fbConn, fbErr := fbDialer.Dialer.DialContext(ctx, network, fbDialer.ServerAddr)
if fbErr != nil {
return nil, fmt.Errorf("error fallback to %s: %v; S2A error: %w", fbDialer.ServerAddr, fbErr, err)
}
return fbConn, nil
}
return nil, err
}
factory, err := NewTLSClientConfigFactory(opts)
if err != nil {
grpclog.Infof("error creating S2A client config factory: %v", err)
return fallback(err)
}
serverName, _, err := net.SplitHostPort(addr)
if err != nil {
serverName = addr
}
timeoutCtx, cancel := context.WithTimeout(ctx, v2.GetS2ATimeout())
defer cancel()
s2aTLSConfig, err := factory.Build(timeoutCtx, &TLSClientConfigOptions{
ServerName: serverName,
})
if err != nil {
grpclog.Infof("error building S2A TLS config: %v", err)
return fallback(err)
}
s2aDialer := &tls.Dialer{
Config: s2aTLSConfig,
}
c, err := s2aDialer.DialContext(ctx, network, addr)
if err != nil {
grpclog.Infof("error dialing with S2A to %s: %v", addr, err)
return fallback(err)
}
grpclog.Infof("success dialing MTLS to %s with S2A", addr)
return c, nil
}
}

208
vendor/github.com/google/s2a-go/s2a_options.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package s2a
import (
"context"
"crypto/tls"
"errors"
"sync"
"github.com/google/s2a-go/fallback"
"github.com/google/s2a-go/stream"
s2apb "github.com/google/s2a-go/internal/proto/common_go_proto"
)
// Identity is the interface for S2A identities.
type Identity interface {
// Name returns the name of the identity.
Name() string
}
type spiffeID struct {
spiffeID string
}
func (s *spiffeID) Name() string { return s.spiffeID }
// NewSpiffeID creates a SPIFFE ID from id.
func NewSpiffeID(id string) Identity {
return &spiffeID{spiffeID: id}
}
type hostname struct {
hostname string
}
func (h *hostname) Name() string { return h.hostname }
// NewHostname creates a hostname from name.
func NewHostname(name string) Identity {
return &hostname{hostname: name}
}
type uid struct {
uid string
}
func (h *uid) Name() string { return h.uid }
// NewUID creates a UID from name.
func NewUID(name string) Identity {
return &uid{uid: name}
}
// VerificationModeType specifies the mode that S2A must use to verify the peer
// certificate chain.
type VerificationModeType int
// Three types of verification modes.
const (
Unspecified = iota
ConnectToGoogle
Spiffe
)
// ClientOptions contains the client-side options used to establish a secure
// channel using the S2A handshaker service.
type ClientOptions struct {
// TargetIdentities contains a list of allowed server identities. One of the
// target identities should match the peer identity in the handshake
// result; otherwise, the handshake fails.
TargetIdentities []Identity
// LocalIdentity is the local identity of the client application. If none is
// provided, then the S2A will choose the default identity, if one exists.
LocalIdentity Identity
// S2AAddress is the address of the S2A.
S2AAddress string
// EnsureProcessSessionTickets waits for all session tickets to be sent to
// S2A before a process completes.
//
// This functionality is crucial for processes that complete very soon after
// using S2A to establish a TLS connection, but it can be ignored for longer
// lived processes.
//
// Usage example:
// func main() {
// var ensureProcessSessionTickets sync.WaitGroup
// clientOpts := &s2a.ClientOptions{
// EnsureProcessSessionTickets: &ensureProcessSessionTickets,
// // Set other members.
// }
// creds, _ := s2a.NewClientCreds(clientOpts)
// conn, _ := grpc.Dial(serverAddr, grpc.WithTransportCredentials(creds))
// defer conn.Close()
//
// // Make RPC call.
//
// // The process terminates right after the RPC call ends.
// // ensureProcessSessionTickets can be used to ensure resumption
// // tickets are fully processed. If the process is long-lived, using
// // ensureProcessSessionTickets is not necessary.
// ensureProcessSessionTickets.Wait()
// }
EnsureProcessSessionTickets *sync.WaitGroup
// If true, enables the use of legacy S2Av1.
EnableLegacyMode bool
// VerificationMode specifies the mode that S2A must use to verify the
// peer certificate chain.
VerificationMode VerificationModeType
// Optional fallback after dialing with S2A fails.
FallbackOpts *FallbackOptions
// Generates an S2AStream interface for talking to the S2A server.
getS2AStream func(ctx context.Context, s2av2Address string) (stream.S2AStream, error)
// Serialized user specified policy for server authorization.
serverAuthorizationPolicy []byte
}
// FallbackOptions prescribes the fallback logic that should be taken if the application fails to connect with S2A.
type FallbackOptions struct {
// FallbackClientHandshakeFunc is used to specify fallback behavior when calling s2a.NewClientCreds().
// It will be called by ClientHandshake function, after handshake with S2A fails.
// s2a.NewClientCreds() ignores the other FallbackDialer field.
FallbackClientHandshakeFunc fallback.ClientHandshake
// FallbackDialer is used to specify fallback behavior when calling s2a.NewS2aDialTLSContextFunc().
// It passes in a custom fallback dialer and server address to use after dialing with S2A fails.
// s2a.NewS2aDialTLSContextFunc() ignores the other FallbackClientHandshakeFunc field.
FallbackDialer *FallbackDialer
}
// FallbackDialer contains a fallback tls.Dialer and a server address to connect to.
type FallbackDialer struct {
// Dialer specifies a fallback tls.Dialer.
Dialer *tls.Dialer
// ServerAddr is used by Dialer to establish fallback connection.
ServerAddr string
}
// DefaultClientOptions returns the default client options.
func DefaultClientOptions(s2aAddress string) *ClientOptions {
return &ClientOptions{
S2AAddress: s2aAddress,
VerificationMode: ConnectToGoogle,
}
}
// ServerOptions contains the server-side options used to establish a secure
// channel using the S2A handshaker service.
type ServerOptions struct {
// LocalIdentities is the list of local identities that may be assumed by
// the server. If no local identity is specified, then the S2A chooses a
// default local identity, if one exists.
LocalIdentities []Identity
// S2AAddress is the address of the S2A.
S2AAddress string
// If true, enables the use of legacy S2Av1.
EnableLegacyMode bool
// VerificationMode specifies the mode that S2A must use to verify the
// peer certificate chain.
VerificationMode VerificationModeType
// Generates an S2AStream interface for talking to the S2A server.
getS2AStream func(ctx context.Context, s2av2Address string) (stream.S2AStream, error)
}
// DefaultServerOptions returns the default server options.
func DefaultServerOptions(s2aAddress string) *ServerOptions {
return &ServerOptions{
S2AAddress: s2aAddress,
VerificationMode: ConnectToGoogle,
}
}
func toProtoIdentity(identity Identity) (*s2apb.Identity, error) {
if identity == nil {
return nil, nil
}
switch id := identity.(type) {
case *spiffeID:
return &s2apb.Identity{IdentityOneof: &s2apb.Identity_SpiffeId{SpiffeId: id.Name()}}, nil
case *hostname:
return &s2apb.Identity{IdentityOneof: &s2apb.Identity_Hostname{Hostname: id.Name()}}, nil
case *uid:
return &s2apb.Identity{IdentityOneof: &s2apb.Identity_Uid{Uid: id.Name()}}, nil
default:
return nil, errors.New("unrecognized identity type")
}
}

79
vendor/github.com/google/s2a-go/s2a_utils.go generated vendored Normal file
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/*
*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package s2a
import (
"context"
"errors"
commonpb "github.com/google/s2a-go/internal/proto/common_go_proto"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/peer"
)
// AuthInfo exposes security information from the S2A to the application.
type AuthInfo interface {
// AuthType returns the authentication type.
AuthType() string
// ApplicationProtocol returns the application protocol, e.g. "grpc".
ApplicationProtocol() string
// TLSVersion returns the TLS version negotiated during the handshake.
TLSVersion() commonpb.TLSVersion
// Ciphersuite returns the ciphersuite negotiated during the handshake.
Ciphersuite() commonpb.Ciphersuite
// PeerIdentity returns the authenticated identity of the peer.
PeerIdentity() *commonpb.Identity
// LocalIdentity returns the local identity of the application used during
// session setup.
LocalIdentity() *commonpb.Identity
// PeerCertFingerprint returns the SHA256 hash of the peer certificate used in
// the S2A handshake.
PeerCertFingerprint() []byte
// LocalCertFingerprint returns the SHA256 hash of the local certificate used
// in the S2A handshake.
LocalCertFingerprint() []byte
// IsHandshakeResumed returns true if a cached session was used to resume
// the handshake.
IsHandshakeResumed() bool
// SecurityLevel returns the security level of the connection.
SecurityLevel() credentials.SecurityLevel
}
// AuthInfoFromPeer extracts the authinfo.S2AAuthInfo object from the given
// peer, if it exists. This API should be used by gRPC clients after
// obtaining a peer object using the grpc.Peer() CallOption.
func AuthInfoFromPeer(p *peer.Peer) (AuthInfo, error) {
s2aAuthInfo, ok := p.AuthInfo.(AuthInfo)
if !ok {
return nil, errors.New("no S2AAuthInfo found in Peer")
}
return s2aAuthInfo, nil
}
// AuthInfoFromContext extracts the authinfo.S2AAuthInfo object from the given
// context, if it exists. This API should be used by gRPC server RPC handlers
// to get information about the peer. On the client-side, use the grpc.Peer()
// CallOption and the AuthInfoFromPeer function.
func AuthInfoFromContext(ctx context.Context) (AuthInfo, error) {
p, ok := peer.FromContext(ctx)
if !ok {
return nil, errors.New("no Peer found in Context")
}
return AuthInfoFromPeer(p)
}

34
vendor/github.com/google/s2a-go/stream/s2a_stream.go generated vendored Normal file
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@ -0,0 +1,34 @@
/*
*
* Copyright 2023 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package stream provides an interface for bidirectional streaming to the S2A server.
package stream
import (
s2av2pb "github.com/google/s2a-go/internal/proto/v2/s2a_go_proto"
)
// S2AStream defines the operation for communicating with the S2A server over a bidirectional stream.
type S2AStream interface {
// Send sends the message to the S2A server.
Send(*s2av2pb.SessionReq) error
// Recv receives the message from the S2A server.
Recv() (*s2av2pb.SessionResp, error)
// Closes the channel to the S2A server.
CloseSend() error
}

9
vendor/github.com/google/uuid/.travis.yml generated vendored
View file

@ -1,9 +0,0 @@
language: go
go:
- 1.4.3
- 1.5.3
- tip
script:
- go test -v ./...

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