feat: Add HTTP2 for unencrypted HTTP (v3) (#4248)
This commit is contained in:
Milos Gajdos
GitHub
commit
945eed71e1
22 changed files with 397 additions and 124 deletions
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@ -157,9 +157,15 @@ type Configuration struct {
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// HTTP2 configuration options
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HTTP2 struct {
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// Specifies whether the registry should disallow clients attempting
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// to connect via http2. If set to true, only http/1.1 is supported.
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// to connect via HTTP/2. If set to true, only HTTP/1.1 is supported.
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Disabled bool `yaml:"disabled,omitempty"`
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} `yaml:"http2,omitempty"`
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H2C struct {
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// Enables H2C (HTTP/2 Cleartext). Enable to support HTTP/2 without needing to configure TLS
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// Useful when deploying the registry behind a load balancer (e.g. Cloud Run)
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Enabled bool `yaml:"enabled,omitempty"`
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} `yaml:"h2c,omitempty"`
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} `yaml:"http,omitempty"`
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// Notifications specifies configuration about various endpoint to which
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@ -97,6 +97,9 @@ var configStruct = Configuration{
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HTTP2 struct {
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Disabled bool `yaml:"disabled,omitempty"`
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} `yaml:"http2,omitempty"`
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H2C struct {
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Enabled bool `yaml:"enabled,omitempty"`
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} `yaml:"h2c,omitempty"`
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}{
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TLS: struct {
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Certificate string `yaml:"certificate,omitempty"`
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@ -121,6 +124,11 @@ var configStruct = Configuration{
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}{
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Disabled: false,
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},
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H2C: struct {
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Enabled bool `yaml:"enabled,omitempty"`
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}{
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Enabled: true,
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},
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},
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Redis: Redis{
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Addr: "localhost:6379",
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@ -220,6 +220,8 @@ http:
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X-Content-Type-Options: [nosniff]
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http2:
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disabled: false
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h2c:
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enabled: false
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notifications:
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events:
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includereferences: true
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@ -724,6 +726,8 @@ http:
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X-Content-Type-Options: [nosniff]
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http2:
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disabled: false
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h2c:
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enabled: false
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```
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The `http` option details the configuration for the HTTP server that hosts the
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@ -870,13 +874,24 @@ registry. This header is included in the example configuration file.
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### `http2`
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The `http2` structure within `http` is **optional**. Use this to control http2
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The `http2` structure within `http` is **optional**. Use this to control HTTP/2 over TLS
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settings for the registry.
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If `tls` is not configured this option is ignored. To enable HTTP/2 over non TLS connections use `h2c` instead.
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| Parameter | Required | Description |
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|-----------|----------|-------------------------------------------------------|
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| `disabled` | no | If `true`, then `http2` support is disabled. |
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### `h2c`
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The `h2c` structure within `http` is **optional**. Use this to control H2C (HTTP/2 Cleartext)
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settings for the registry.
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Useful when deploying the registry behind a load balancer (e.g. Google Cloud Run)
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| Parameter | Required | Description |
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|-----------|----------|-------------------------------------------------------|
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| `enabled` | no | If `true`, then `h2c` support is enabled. |
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## `notifications`
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```yaml
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6
go.mod
6
go.mod
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@ -30,7 +30,7 @@ require (
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github.com/stretchr/testify v1.8.4
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go.opentelemetry.io/contrib/exporters/autoexport v0.46.1
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go.opentelemetry.io/otel/sdk v1.21.0
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golang.org/x/crypto v0.17.0
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golang.org/x/crypto v0.18.0
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golang.org/x/oauth2 v0.11.0
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google.golang.org/api v0.126.0
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gopkg.in/yaml.v2 v2.4.0
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@ -87,9 +87,9 @@ require (
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go.opentelemetry.io/otel/sdk/metric v1.21.0 // indirect
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go.opentelemetry.io/otel/trace v1.21.0 // indirect
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go.opentelemetry.io/proto/otlp v1.0.0 // indirect
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golang.org/x/net v0.18.0 // indirect
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golang.org/x/net v0.20.0
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golang.org/x/sync v0.3.0 // indirect
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golang.org/x/sys v0.15.0 // indirect
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golang.org/x/sys v0.16.0 // indirect
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golang.org/x/text v0.14.0 // indirect
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golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
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google.golang.org/appengine v1.6.7 // indirect
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12
go.sum
12
go.sum
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@ -280,8 +280,8 @@ golang.org/x/crypto v0.0.0-20190911031432-227b76d455e7/go.mod h1:yigFU9vqHzYiE8U
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golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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golang.org/x/crypto v0.0.0-20220314234659-1baeb1ce4c0b/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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golang.org/x/crypto v0.17.0 h1:r8bRNjWL3GshPW3gkd+RpvzWrZAwPS49OmTGZ/uhM4k=
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golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
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golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
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golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
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golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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@ -302,8 +302,8 @@ golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwY
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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golang.org/x/net v0.18.0 h1:mIYleuAkSbHh0tCv7RvjL3F6ZVbLjq4+R7zbOn3Kokg=
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golang.org/x/net v0.18.0/go.mod h1:/czyP5RqHAH4odGYxBJ1qz0+CE5WZ+2j1YgoEo8F2jQ=
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golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
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golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
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golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
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golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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golang.org/x/oauth2 v0.11.0 h1:vPL4xzxBM4niKCW6g9whtaWVXTJf1U5e4aZxxFx/gbU=
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@ -332,8 +332,8 @@ golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBc
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golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
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golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
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golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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@ -20,6 +20,8 @@ import (
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"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
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"golang.org/x/crypto/acme"
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"golang.org/x/crypto/acme/autocert"
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"golang.org/x/net/http2"
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"golang.org/x/net/http2/h2c"
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"github.com/distribution/distribution/v3/configuration"
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"github.com/distribution/distribution/v3/health"
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@ -158,6 +160,9 @@ func NewRegistry(ctx context.Context, config *configuration.Configuration) (*Reg
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if err != nil {
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return nil, fmt.Errorf("error during open telemetry initialization: %v", err)
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}
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if config.HTTP.H2C.Enabled {
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handler = h2c.NewHandler(handler, &http2.Server{})
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}
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handler = otelHandler(handler)
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server := &http.Server{
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39
vendor/golang.org/x/crypto/internal/poly1305/bits_compat.go
generated
vendored
39
vendor/golang.org/x/crypto/internal/poly1305/bits_compat.go
generated
vendored
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@ -1,39 +0,0 @@
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !go1.13
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package poly1305
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// Generic fallbacks for the math/bits intrinsics, copied from
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// src/math/bits/bits.go. They were added in Go 1.12, but Add64 and Sum64 had
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// variable time fallbacks until Go 1.13.
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func bitsAdd64(x, y, carry uint64) (sum, carryOut uint64) {
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sum = x + y + carry
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carryOut = ((x & y) | ((x | y) &^ sum)) >> 63
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return
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}
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func bitsSub64(x, y, borrow uint64) (diff, borrowOut uint64) {
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diff = x - y - borrow
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borrowOut = ((^x & y) | (^(x ^ y) & diff)) >> 63
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return
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}
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func bitsMul64(x, y uint64) (hi, lo uint64) {
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const mask32 = 1<<32 - 1
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x0 := x & mask32
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x1 := x >> 32
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y0 := y & mask32
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y1 := y >> 32
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w0 := x0 * y0
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t := x1*y0 + w0>>32
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w1 := t & mask32
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w2 := t >> 32
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w1 += x0 * y1
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hi = x1*y1 + w2 + w1>>32
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lo = x * y
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return
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}
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21
vendor/golang.org/x/crypto/internal/poly1305/bits_go1.13.go
generated
vendored
21
vendor/golang.org/x/crypto/internal/poly1305/bits_go1.13.go
generated
vendored
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@ -1,21 +0,0 @@
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build go1.13
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package poly1305
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import "math/bits"
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func bitsAdd64(x, y, carry uint64) (sum, carryOut uint64) {
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return bits.Add64(x, y, carry)
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}
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func bitsSub64(x, y, borrow uint64) (diff, borrowOut uint64) {
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return bits.Sub64(x, y, borrow)
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}
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func bitsMul64(x, y uint64) (hi, lo uint64) {
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return bits.Mul64(x, y)
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}
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43
vendor/golang.org/x/crypto/internal/poly1305/sum_generic.go
generated
vendored
43
vendor/golang.org/x/crypto/internal/poly1305/sum_generic.go
generated
vendored
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@ -7,7 +7,10 @@
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package poly1305
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import "encoding/binary"
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import (
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"encoding/binary"
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"math/bits"
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)
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// Poly1305 [RFC 7539] is a relatively simple algorithm: the authentication tag
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// for a 64 bytes message is approximately
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@ -114,13 +117,13 @@ type uint128 struct {
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}
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func mul64(a, b uint64) uint128 {
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hi, lo := bitsMul64(a, b)
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hi, lo := bits.Mul64(a, b)
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return uint128{lo, hi}
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}
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func add128(a, b uint128) uint128 {
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lo, c := bitsAdd64(a.lo, b.lo, 0)
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hi, c := bitsAdd64(a.hi, b.hi, c)
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lo, c := bits.Add64(a.lo, b.lo, 0)
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hi, c := bits.Add64(a.hi, b.hi, c)
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if c != 0 {
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panic("poly1305: unexpected overflow")
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}
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@ -155,8 +158,8 @@ func updateGeneric(state *macState, msg []byte) {
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// hide leading zeroes. For full chunks, that's 1 << 128, so we can just
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// add 1 to the most significant (2¹²⁸) limb, h2.
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if len(msg) >= TagSize {
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h0, c = bitsAdd64(h0, binary.LittleEndian.Uint64(msg[0:8]), 0)
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h1, c = bitsAdd64(h1, binary.LittleEndian.Uint64(msg[8:16]), c)
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h0, c = bits.Add64(h0, binary.LittleEndian.Uint64(msg[0:8]), 0)
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h1, c = bits.Add64(h1, binary.LittleEndian.Uint64(msg[8:16]), c)
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h2 += c + 1
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msg = msg[TagSize:]
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@ -165,8 +168,8 @@ func updateGeneric(state *macState, msg []byte) {
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copy(buf[:], msg)
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buf[len(msg)] = 1
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h0, c = bitsAdd64(h0, binary.LittleEndian.Uint64(buf[0:8]), 0)
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h1, c = bitsAdd64(h1, binary.LittleEndian.Uint64(buf[8:16]), c)
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h0, c = bits.Add64(h0, binary.LittleEndian.Uint64(buf[0:8]), 0)
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h1, c = bits.Add64(h1, binary.LittleEndian.Uint64(buf[8:16]), c)
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h2 += c
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msg = nil
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@ -219,9 +222,9 @@ func updateGeneric(state *macState, msg []byte) {
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m3 := h2r1
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t0 := m0.lo
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t1, c := bitsAdd64(m1.lo, m0.hi, 0)
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t2, c := bitsAdd64(m2.lo, m1.hi, c)
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t3, _ := bitsAdd64(m3.lo, m2.hi, c)
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t1, c := bits.Add64(m1.lo, m0.hi, 0)
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t2, c := bits.Add64(m2.lo, m1.hi, c)
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t3, _ := bits.Add64(m3.lo, m2.hi, c)
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// Now we have the result as 4 64-bit limbs, and we need to reduce it
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// modulo 2¹³⁰ - 5. The special shape of this Crandall prime lets us do
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@ -243,14 +246,14 @@ func updateGeneric(state *macState, msg []byte) {
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// To add c * 5 to h, we first add cc = c * 4, and then add (cc >> 2) = c.
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h0, c = bitsAdd64(h0, cc.lo, 0)
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h1, c = bitsAdd64(h1, cc.hi, c)
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h0, c = bits.Add64(h0, cc.lo, 0)
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h1, c = bits.Add64(h1, cc.hi, c)
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h2 += c
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cc = shiftRightBy2(cc)
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h0, c = bitsAdd64(h0, cc.lo, 0)
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h1, c = bitsAdd64(h1, cc.hi, c)
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h0, c = bits.Add64(h0, cc.lo, 0)
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h1, c = bits.Add64(h1, cc.hi, c)
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h2 += c
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// h2 is at most 3 + 1 + 1 = 5, making the whole of h at most
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@ -287,9 +290,9 @@ func finalize(out *[TagSize]byte, h *[3]uint64, s *[2]uint64) {
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// in constant time, we compute t = h - (2¹³⁰ - 5), and select h as the
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// result if the subtraction underflows, and t otherwise.
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hMinusP0, b := bitsSub64(h0, p0, 0)
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hMinusP1, b := bitsSub64(h1, p1, b)
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_, b = bitsSub64(h2, p2, b)
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hMinusP0, b := bits.Sub64(h0, p0, 0)
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hMinusP1, b := bits.Sub64(h1, p1, b)
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_, b = bits.Sub64(h2, p2, b)
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|
||||
// h = h if h < p else h - p
|
||||
h0 = select64(b, h0, hMinusP0)
|
||||
|
|
@ -301,8 +304,8 @@ func finalize(out *[TagSize]byte, h *[3]uint64, s *[2]uint64) {
|
|||
//
|
||||
// by just doing a wide addition with the 128 low bits of h and discarding
|
||||
// the overflow.
|
||||
h0, c := bitsAdd64(h0, s[0], 0)
|
||||
h1, _ = bitsAdd64(h1, s[1], c)
|
||||
h0, c := bits.Add64(h0, s[0], 0)
|
||||
h1, _ = bits.Add64(h1, s[1], c)
|
||||
|
||||
binary.LittleEndian.PutUint64(out[0:8], h0)
|
||||
binary.LittleEndian.PutUint64(out[8:16], h1)
|
||||
|
|
|
|||
240
vendor/golang.org/x/net/http2/h2c/h2c.go
generated
vendored
Normal file
240
vendor/golang.org/x/net/http2/h2c/h2c.go
generated
vendored
Normal file
|
|
@ -0,0 +1,240 @@
|
|||
// 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.
|
||||
|
||||
// Package h2c implements the unencrypted "h2c" form of HTTP/2.
|
||||
//
|
||||
// The h2c protocol is the non-TLS version of HTTP/2 which is not available from
|
||||
// net/http or golang.org/x/net/http2.
|
||||
package h2c
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"encoding/base64"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"log"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/textproto"
|
||||
"os"
|
||||
"strings"
|
||||
|
||||
"golang.org/x/net/http/httpguts"
|
||||
"golang.org/x/net/http2"
|
||||
)
|
||||
|
||||
var (
|
||||
http2VerboseLogs bool
|
||||
)
|
||||
|
||||
func init() {
|
||||
e := os.Getenv("GODEBUG")
|
||||
if strings.Contains(e, "http2debug=1") || strings.Contains(e, "http2debug=2") {
|
||||
http2VerboseLogs = true
|
||||
}
|
||||
}
|
||||
|
||||
// h2cHandler is a Handler which implements h2c by hijacking the HTTP/1 traffic
|
||||
// that should be h2c traffic. There are two ways to begin a h2c connection
|
||||
// (RFC 7540 Section 3.2 and 3.4): (1) Starting with Prior Knowledge - this
|
||||
// works by starting an h2c connection with a string of bytes that is valid
|
||||
// HTTP/1, but unlikely to occur in practice and (2) Upgrading from HTTP/1 to
|
||||
// h2c - this works by using the HTTP/1 Upgrade header to request an upgrade to
|
||||
// h2c. When either of those situations occur we hijack the HTTP/1 connection,
|
||||
// convert it to an HTTP/2 connection and pass the net.Conn to http2.ServeConn.
|
||||
type h2cHandler struct {
|
||||
Handler http.Handler
|
||||
s *http2.Server
|
||||
}
|
||||
|
||||
// NewHandler returns an http.Handler that wraps h, intercepting any h2c
|
||||
// traffic. If a request is an h2c connection, it's hijacked and redirected to
|
||||
// s.ServeConn. Otherwise the returned Handler just forwards requests to h. This
|
||||
// works because h2c is designed to be parseable as valid HTTP/1, but ignored by
|
||||
// any HTTP server that does not handle h2c. Therefore we leverage the HTTP/1
|
||||
// compatible parts of the Go http library to parse and recognize h2c requests.
|
||||
// Once a request is recognized as h2c, we hijack the connection and convert it
|
||||
// to an HTTP/2 connection which is understandable to s.ServeConn. (s.ServeConn
|
||||
// understands HTTP/2 except for the h2c part of it.)
|
||||
//
|
||||
// The first request on an h2c connection is read entirely into memory before
|
||||
// the Handler is called. To limit the memory consumed by this request, wrap
|
||||
// the result of NewHandler in an http.MaxBytesHandler.
|
||||
func NewHandler(h http.Handler, s *http2.Server) http.Handler {
|
||||
return &h2cHandler{
|
||||
Handler: h,
|
||||
s: s,
|
||||
}
|
||||
}
|
||||
|
||||
// extractServer extracts existing http.Server instance from http.Request or create an empty http.Server
|
||||
func extractServer(r *http.Request) *http.Server {
|
||||
server, ok := r.Context().Value(http.ServerContextKey).(*http.Server)
|
||||
if ok {
|
||||
return server
|
||||
}
|
||||
return new(http.Server)
|
||||
}
|
||||
|
||||
// ServeHTTP implement the h2c support that is enabled by h2c.GetH2CHandler.
|
||||
func (s h2cHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||||
// Handle h2c with prior knowledge (RFC 7540 Section 3.4)
|
||||
if r.Method == "PRI" && len(r.Header) == 0 && r.URL.Path == "*" && r.Proto == "HTTP/2.0" {
|
||||
if http2VerboseLogs {
|
||||
log.Print("h2c: attempting h2c with prior knowledge.")
|
||||
}
|
||||
conn, err := initH2CWithPriorKnowledge(w)
|
||||
if err != nil {
|
||||
if http2VerboseLogs {
|
||||
log.Printf("h2c: error h2c with prior knowledge: %v", err)
|
||||
}
|
||||
return
|
||||
}
|
||||
defer conn.Close()
|
||||
s.s.ServeConn(conn, &http2.ServeConnOpts{
|
||||
Context: r.Context(),
|
||||
BaseConfig: extractServer(r),
|
||||
Handler: s.Handler,
|
||||
SawClientPreface: true,
|
||||
})
|
||||
return
|
||||
}
|
||||
// Handle Upgrade to h2c (RFC 7540 Section 3.2)
|
||||
if isH2CUpgrade(r.Header) {
|
||||
conn, settings, err := h2cUpgrade(w, r)
|
||||
if err != nil {
|
||||
if http2VerboseLogs {
|
||||
log.Printf("h2c: error h2c upgrade: %v", err)
|
||||
}
|
||||
w.WriteHeader(http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
defer conn.Close()
|
||||
s.s.ServeConn(conn, &http2.ServeConnOpts{
|
||||
Context: r.Context(),
|
||||
BaseConfig: extractServer(r),
|
||||
Handler: s.Handler,
|
||||
UpgradeRequest: r,
|
||||
Settings: settings,
|
||||
})
|
||||
return
|
||||
}
|
||||
s.Handler.ServeHTTP(w, r)
|
||||
return
|
||||
}
|
||||
|
||||
// initH2CWithPriorKnowledge implements creating a h2c connection with prior
|
||||
// knowledge (Section 3.4) and creates a net.Conn suitable for http2.ServeConn.
|
||||
// All we have to do is look for the client preface that is suppose to be part
|
||||
// of the body, and reforward the client preface on the net.Conn this function
|
||||
// creates.
|
||||
func initH2CWithPriorKnowledge(w http.ResponseWriter) (net.Conn, error) {
|
||||
hijacker, ok := w.(http.Hijacker)
|
||||
if !ok {
|
||||
return nil, errors.New("h2c: connection does not support Hijack")
|
||||
}
|
||||
conn, rw, err := hijacker.Hijack()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
const expectedBody = "SM\r\n\r\n"
|
||||
|
||||
buf := make([]byte, len(expectedBody))
|
||||
n, err := io.ReadFull(rw, buf)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("h2c: error reading client preface: %s", err)
|
||||
}
|
||||
|
||||
if string(buf[:n]) == expectedBody {
|
||||
return newBufConn(conn, rw), nil
|
||||
}
|
||||
|
||||
conn.Close()
|
||||
return nil, errors.New("h2c: invalid client preface")
|
||||
}
|
||||
|
||||
// h2cUpgrade establishes a h2c connection using the HTTP/1 upgrade (Section 3.2).
|
||||
func h2cUpgrade(w http.ResponseWriter, r *http.Request) (_ net.Conn, settings []byte, err error) {
|
||||
settings, err = getH2Settings(r.Header)
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
hijacker, ok := w.(http.Hijacker)
|
||||
if !ok {
|
||||
return nil, nil, errors.New("h2c: connection does not support Hijack")
|
||||
}
|
||||
|
||||
body, err := io.ReadAll(r.Body)
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
r.Body = io.NopCloser(bytes.NewBuffer(body))
|
||||
|
||||
conn, rw, err := hijacker.Hijack()
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
rw.Write([]byte("HTTP/1.1 101 Switching Protocols\r\n" +
|
||||
"Connection: Upgrade\r\n" +
|
||||
"Upgrade: h2c\r\n\r\n"))
|
||||
return newBufConn(conn, rw), settings, nil
|
||||
}
|
||||
|
||||
// isH2CUpgrade returns true if the header properly request an upgrade to h2c
|
||||
// as specified by Section 3.2.
|
||||
func isH2CUpgrade(h http.Header) bool {
|
||||
return httpguts.HeaderValuesContainsToken(h[textproto.CanonicalMIMEHeaderKey("Upgrade")], "h2c") &&
|
||||
httpguts.HeaderValuesContainsToken(h[textproto.CanonicalMIMEHeaderKey("Connection")], "HTTP2-Settings")
|
||||
}
|
||||
|
||||
// getH2Settings returns the settings in the HTTP2-Settings header.
|
||||
func getH2Settings(h http.Header) ([]byte, error) {
|
||||
vals, ok := h[textproto.CanonicalMIMEHeaderKey("HTTP2-Settings")]
|
||||
if !ok {
|
||||
return nil, errors.New("missing HTTP2-Settings header")
|
||||
}
|
||||
if len(vals) != 1 {
|
||||
return nil, fmt.Errorf("expected 1 HTTP2-Settings. Got: %v", vals)
|
||||
}
|
||||
settings, err := base64.RawURLEncoding.DecodeString(vals[0])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return settings, nil
|
||||
}
|
||||
|
||||
func newBufConn(conn net.Conn, rw *bufio.ReadWriter) net.Conn {
|
||||
rw.Flush()
|
||||
if rw.Reader.Buffered() == 0 {
|
||||
// If there's no buffered data to be read,
|
||||
// we can just discard the bufio.ReadWriter.
|
||||
return conn
|
||||
}
|
||||
return &bufConn{conn, rw.Reader}
|
||||
}
|
||||
|
||||
// bufConn wraps a net.Conn, but reads drain the bufio.Reader first.
|
||||
type bufConn struct {
|
||||
net.Conn
|
||||
*bufio.Reader
|
||||
}
|
||||
|
||||
func (c *bufConn) Read(p []byte) (int, error) {
|
||||
if c.Reader == nil {
|
||||
return c.Conn.Read(p)
|
||||
}
|
||||
n := c.Reader.Buffered()
|
||||
if n == 0 {
|
||||
c.Reader = nil
|
||||
return c.Conn.Read(p)
|
||||
}
|
||||
if n < len(p) {
|
||||
p = p[:n]
|
||||
}
|
||||
return c.Reader.Read(p)
|
||||
}
|
||||
37
vendor/golang.org/x/sys/unix/mkerrors.sh
generated
vendored
37
vendor/golang.org/x/sys/unix/mkerrors.sh
generated
vendored
|
|
@ -248,6 +248,7 @@ struct ltchars {
|
|||
#include <linux/module.h>
|
||||
#include <linux/mount.h>
|
||||
#include <linux/netfilter/nfnetlink.h>
|
||||
#include <linux/netfilter/nf_tables.h>
|
||||
#include <linux/netlink.h>
|
||||
#include <linux/net_namespace.h>
|
||||
#include <linux/nfc.h>
|
||||
|
|
@ -283,10 +284,6 @@ struct ltchars {
|
|||
#include <asm/termbits.h>
|
||||
#endif
|
||||
|
||||
#ifndef MSG_FASTOPEN
|
||||
#define MSG_FASTOPEN 0x20000000
|
||||
#endif
|
||||
|
||||
#ifndef PTRACE_GETREGS
|
||||
#define PTRACE_GETREGS 0xc
|
||||
#endif
|
||||
|
|
@ -295,14 +292,6 @@ struct ltchars {
|
|||
#define PTRACE_SETREGS 0xd
|
||||
#endif
|
||||
|
||||
#ifndef SOL_NETLINK
|
||||
#define SOL_NETLINK 270
|
||||
#endif
|
||||
|
||||
#ifndef SOL_SMC
|
||||
#define SOL_SMC 286
|
||||
#endif
|
||||
|
||||
#ifdef SOL_BLUETOOTH
|
||||
// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
|
||||
// but it is already in bluetooth_linux.go
|
||||
|
|
@ -319,10 +308,23 @@ struct ltchars {
|
|||
#undef TIPC_WAIT_FOREVER
|
||||
#define TIPC_WAIT_FOREVER 0xffffffff
|
||||
|
||||
// Copied from linux/l2tp.h
|
||||
// Including linux/l2tp.h here causes conflicts between linux/in.h
|
||||
// and netinet/in.h included via net/route.h above.
|
||||
#define IPPROTO_L2TP 115
|
||||
// Copied from linux/netfilter/nf_nat.h
|
||||
// Including linux/netfilter/nf_nat.h here causes conflicts between linux/in.h
|
||||
// and netinet/in.h.
|
||||
#define NF_NAT_RANGE_MAP_IPS (1 << 0)
|
||||
#define NF_NAT_RANGE_PROTO_SPECIFIED (1 << 1)
|
||||
#define NF_NAT_RANGE_PROTO_RANDOM (1 << 2)
|
||||
#define NF_NAT_RANGE_PERSISTENT (1 << 3)
|
||||
#define NF_NAT_RANGE_PROTO_RANDOM_FULLY (1 << 4)
|
||||
#define NF_NAT_RANGE_PROTO_OFFSET (1 << 5)
|
||||
#define NF_NAT_RANGE_NETMAP (1 << 6)
|
||||
#define NF_NAT_RANGE_PROTO_RANDOM_ALL \
|
||||
(NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PROTO_RANDOM_FULLY)
|
||||
#define NF_NAT_RANGE_MASK \
|
||||
(NF_NAT_RANGE_MAP_IPS | NF_NAT_RANGE_PROTO_SPECIFIED | \
|
||||
NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PERSISTENT | \
|
||||
NF_NAT_RANGE_PROTO_RANDOM_FULLY | NF_NAT_RANGE_PROTO_OFFSET | \
|
||||
NF_NAT_RANGE_NETMAP)
|
||||
|
||||
// Copied from linux/hid.h.
|
||||
// Keep in sync with the size of the referenced fields.
|
||||
|
|
@ -603,6 +605,9 @@ ccflags="$@"
|
|||
$2 ~ /^FSOPT_/ ||
|
||||
$2 ~ /^WDIO[CFS]_/ ||
|
||||
$2 ~ /^NFN/ ||
|
||||
$2 !~ /^NFT_META_IIFTYPE/ &&
|
||||
$2 ~ /^NFT_/ ||
|
||||
$2 ~ /^NF_NAT_/ ||
|
||||
$2 ~ /^XDP_/ ||
|
||||
$2 ~ /^RWF_/ ||
|
||||
$2 ~ /^(HDIO|WIN|SMART)_/ ||
|
||||
|
|
|
|||
54
vendor/golang.org/x/sys/unix/zerrors_linux.go
generated
vendored
54
vendor/golang.org/x/sys/unix/zerrors_linux.go
generated
vendored
|
|
@ -2127,6 +2127,60 @@ const (
|
|||
NFNL_SUBSYS_QUEUE = 0x3
|
||||
NFNL_SUBSYS_ULOG = 0x4
|
||||
NFS_SUPER_MAGIC = 0x6969
|
||||
NFT_CHAIN_FLAGS = 0x7
|
||||
NFT_CHAIN_MAXNAMELEN = 0x100
|
||||
NFT_CT_MAX = 0x17
|
||||
NFT_DATA_RESERVED_MASK = 0xffffff00
|
||||
NFT_DATA_VALUE_MAXLEN = 0x40
|
||||
NFT_EXTHDR_OP_MAX = 0x4
|
||||
NFT_FIB_RESULT_MAX = 0x3
|
||||
NFT_INNER_MASK = 0xf
|
||||
NFT_LOGLEVEL_MAX = 0x8
|
||||
NFT_NAME_MAXLEN = 0x100
|
||||
NFT_NG_MAX = 0x1
|
||||
NFT_OBJECT_CONNLIMIT = 0x5
|
||||
NFT_OBJECT_COUNTER = 0x1
|
||||
NFT_OBJECT_CT_EXPECT = 0x9
|
||||
NFT_OBJECT_CT_HELPER = 0x3
|
||||
NFT_OBJECT_CT_TIMEOUT = 0x7
|
||||
NFT_OBJECT_LIMIT = 0x4
|
||||
NFT_OBJECT_MAX = 0xa
|
||||
NFT_OBJECT_QUOTA = 0x2
|
||||
NFT_OBJECT_SECMARK = 0x8
|
||||
NFT_OBJECT_SYNPROXY = 0xa
|
||||
NFT_OBJECT_TUNNEL = 0x6
|
||||
NFT_OBJECT_UNSPEC = 0x0
|
||||
NFT_OBJ_MAXNAMELEN = 0x100
|
||||
NFT_OSF_MAXGENRELEN = 0x10
|
||||
NFT_QUEUE_FLAG_BYPASS = 0x1
|
||||
NFT_QUEUE_FLAG_CPU_FANOUT = 0x2
|
||||
NFT_QUEUE_FLAG_MASK = 0x3
|
||||
NFT_REG32_COUNT = 0x10
|
||||
NFT_REG32_SIZE = 0x4
|
||||
NFT_REG_MAX = 0x4
|
||||
NFT_REG_SIZE = 0x10
|
||||
NFT_REJECT_ICMPX_MAX = 0x3
|
||||
NFT_RT_MAX = 0x4
|
||||
NFT_SECMARK_CTX_MAXLEN = 0x100
|
||||
NFT_SET_MAXNAMELEN = 0x100
|
||||
NFT_SOCKET_MAX = 0x3
|
||||
NFT_TABLE_F_MASK = 0x3
|
||||
NFT_TABLE_MAXNAMELEN = 0x100
|
||||
NFT_TRACETYPE_MAX = 0x3
|
||||
NFT_TUNNEL_F_MASK = 0x7
|
||||
NFT_TUNNEL_MAX = 0x1
|
||||
NFT_TUNNEL_MODE_MAX = 0x2
|
||||
NFT_USERDATA_MAXLEN = 0x100
|
||||
NFT_XFRM_KEY_MAX = 0x6
|
||||
NF_NAT_RANGE_MAP_IPS = 0x1
|
||||
NF_NAT_RANGE_MASK = 0x7f
|
||||
NF_NAT_RANGE_NETMAP = 0x40
|
||||
NF_NAT_RANGE_PERSISTENT = 0x8
|
||||
NF_NAT_RANGE_PROTO_OFFSET = 0x20
|
||||
NF_NAT_RANGE_PROTO_RANDOM = 0x4
|
||||
NF_NAT_RANGE_PROTO_RANDOM_ALL = 0x14
|
||||
NF_NAT_RANGE_PROTO_RANDOM_FULLY = 0x10
|
||||
NF_NAT_RANGE_PROTO_SPECIFIED = 0x2
|
||||
NILFS_SUPER_MAGIC = 0x3434
|
||||
NL0 = 0x0
|
||||
NL1 = 0x100
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_386.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_386.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_amd64.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_amd64.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_arm.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_arm.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_arm64.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_arm64.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_mips64.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_mips64.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_ppc64.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_ppc64.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_riscv64.go
generated
vendored
2
vendor/golang.org/x/sys/unix/zsyscall_openbsd_riscv64.go
generated
vendored
|
|
@ -2297,5 +2297,3 @@ func unveil(path *byte, flags *byte) (err error) {
|
|||
var libc_unveil_trampoline_addr uintptr
|
||||
|
||||
//go:cgo_import_dynamic libc_unveil unveil "libc.so"
|
||||
|
||||
|
||||
|
|
|
|||
1
vendor/golang.org/x/sys/windows/syscall_windows.go
generated
vendored
1
vendor/golang.org/x/sys/windows/syscall_windows.go
generated
vendored
|
|
@ -194,6 +194,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
|
|||
//sys GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW
|
||||
//sys GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW
|
||||
//sys SetEndOfFile(handle Handle) (err error)
|
||||
//sys SetFileValidData(handle Handle, validDataLength int64) (err error)
|
||||
//sys GetSystemTimeAsFileTime(time *Filetime)
|
||||
//sys GetSystemTimePreciseAsFileTime(time *Filetime)
|
||||
//sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff]
|
||||
|
|
|
|||
9
vendor/golang.org/x/sys/windows/zsyscall_windows.go
generated
vendored
9
vendor/golang.org/x/sys/windows/zsyscall_windows.go
generated
vendored
|
|
@ -342,6 +342,7 @@ var (
|
|||
procSetDefaultDllDirectories = modkernel32.NewProc("SetDefaultDllDirectories")
|
||||
procSetDllDirectoryW = modkernel32.NewProc("SetDllDirectoryW")
|
||||
procSetEndOfFile = modkernel32.NewProc("SetEndOfFile")
|
||||
procSetFileValidData = modkernel32.NewProc("SetFileValidData")
|
||||
procSetEnvironmentVariableW = modkernel32.NewProc("SetEnvironmentVariableW")
|
||||
procSetErrorMode = modkernel32.NewProc("SetErrorMode")
|
||||
procSetEvent = modkernel32.NewProc("SetEvent")
|
||||
|
|
@ -2988,6 +2989,14 @@ func SetEndOfFile(handle Handle) (err error) {
|
|||
return
|
||||
}
|
||||
|
||||
func SetFileValidData(handle Handle, validDataLength int64) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procSetFileValidData.Addr(), 2, uintptr(handle), uintptr(validDataLength), 0)
|
||||
if r1 == 0 {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func SetEnvironmentVariable(name *uint16, value *uint16) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procSetEnvironmentVariableW.Addr(), 2, uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(value)), 0)
|
||||
if r1 == 0 {
|
||||
|
|
|
|||
7
vendor/modules.txt
vendored
7
vendor/modules.txt
vendored
|
|
@ -467,7 +467,7 @@ go.opentelemetry.io/proto/otlp/common/v1
|
|||
go.opentelemetry.io/proto/otlp/metrics/v1
|
||||
go.opentelemetry.io/proto/otlp/resource/v1
|
||||
go.opentelemetry.io/proto/otlp/trace/v1
|
||||
# golang.org/x/crypto v0.17.0
|
||||
# golang.org/x/crypto v0.18.0
|
||||
## explicit; go 1.18
|
||||
golang.org/x/crypto/acme
|
||||
golang.org/x/crypto/acme/autocert
|
||||
|
|
@ -483,11 +483,12 @@ golang.org/x/crypto/internal/poly1305
|
|||
golang.org/x/crypto/pbkdf2
|
||||
golang.org/x/crypto/pkcs12
|
||||
golang.org/x/crypto/pkcs12/internal/rc2
|
||||
# golang.org/x/net v0.18.0
|
||||
# golang.org/x/net v0.20.0
|
||||
## explicit; go 1.18
|
||||
golang.org/x/net/context
|
||||
golang.org/x/net/http/httpguts
|
||||
golang.org/x/net/http2
|
||||
golang.org/x/net/http2/h2c
|
||||
golang.org/x/net/http2/hpack
|
||||
golang.org/x/net/idna
|
||||
golang.org/x/net/internal/timeseries
|
||||
|
|
@ -504,7 +505,7 @@ golang.org/x/oauth2/jwt
|
|||
# golang.org/x/sync v0.3.0
|
||||
## explicit; go 1.17
|
||||
golang.org/x/sync/semaphore
|
||||
# golang.org/x/sys v0.15.0
|
||||
# golang.org/x/sys v0.16.0
|
||||
## explicit; go 1.18
|
||||
golang.org/x/sys/cpu
|
||||
golang.org/x/sys/unix
|
||||
|
|
|
|||
Loading…
Reference in a new issue