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plugin/template: small tweaks (#1366)

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Small README updates, and fallthrough fixes (using less code)
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Miek Gieben 2018-01-09 21:48:32 +00:00 • committed by GitHub
parent 0091e1c9dc
commit a19ea63d3a
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 46 additions and 51 deletions
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7
plugin/template/README.md
View file

@ -15,8 +15,8 @@ template CLASS TYPE [ZONE...] {
[additional RR]
[authority RR]
[...]
[rcode responsecode]
[fallthrough [fallthrough zone...]]
[rcode CODE]
[fallthrough [ZONE...]]
}
~~~
@ -28,7 +28,8 @@ template CLASS TYPE [ZONE...] {
build by a [Go template](https://golang.org/pkg/text/template/) that contains the reply.
* `rcode` **CODE** A response code (`NXDOMAIN, SERVFAIL, ...`). The default is `SUCCESS`.
* `fallthrough` Continue with the next plugin if the zone matched but no regex did not match.
* `fallthrough zone` One or more zones that may fall through to other plugins. Defaults to all zones of the template.
If specific zones are listed (for example `in-addr.arpa` and `ip6.arpa`), then only queries for
those zones will be subject to fallthrough.
At least one `answer` or `rcode` directive is needed (e.g. `rcode NXDOMAIN`).

2
plugin/template/metrics.go
View file

@ -6,8 +6,8 @@ import (
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/metrics"
"github.com/mholt/caddy"
"github.com/mholt/caddy"
"github.com/prometheus/client_golang/prometheus"
)

7
plugin/template/setup.go
View file

@ -140,12 +140,7 @@ func templateParse(c *caddy.Controller) (handler Handler, err error) {
t.rcode = rcode
case "fallthrough":
args := c.RemainingArgs()
if len(args) > 0 {
t.fthrough.SetZonesFromArgs(c.RemainingArgs())
} else {
t.fthrough.SetZonesFromArgs(zones)
}
t.fall.SetZonesFromArgs(c.RemainingArgs())
default:
return handler, c.ArgErr()

4
plugin/template/template.go
View file

@ -31,7 +31,7 @@ type template struct {
authority []*gotmpl.Template
qclass uint16
qtype uint16
fthrough fall.F
fall fall.F
}
type templateData struct {
@ -177,5 +177,5 @@ func (t template) match(state request.Request, zone string) (templateData, bool,
return data, true, false
}
return data, false, t.fthrough.Through(state.Name())
return data, false, t.fall.Through(state.Name())
}

25
plugin/template/template_test.go
View file

@ -5,14 +5,13 @@ import (
"fmt"
"regexp"
"testing"
"github.com/coredns/coredns/plugin/test"
"github.com/mholt/caddy"
gotmpl "text/template"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/pkg/fall"
"github.com/coredns/coredns/plugin/test"
"github.com/mholt/caddy"
"github.com/miekg/dns"
)
@ -23,7 +22,7 @@ func TestHandler(t *testing.T) {
answer: []*gotmpl.Template{gotmpl.Must(gotmpl.New("answer").Parse("{{ .Name }} 60 IN A 10.{{ .Group.b }}.{{ .Group.c }}.{{ .Group.d }}"))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
exampleDomainANSTemplate := template{
@ -33,7 +32,7 @@ func TestHandler(t *testing.T) {
authority: []*gotmpl.Template{gotmpl.Must(gotmpl.New("authority").Parse("example. IN NS ns0.example.com."))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
exampleDomainMXTemplate := template{
@ -42,7 +41,7 @@ func TestHandler(t *testing.T) {
additional: []*gotmpl.Template{gotmpl.Must(gotmpl.New("additional").Parse("{{ .Name }} 60 IN A 10.{{ .Group.b }}.{{ .Group.c }}.{{ .Group.d }}"))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
invalidDomainTemplate := template{
@ -51,7 +50,7 @@ func TestHandler(t *testing.T) {
answer: []*gotmpl.Template{gotmpl.Must(gotmpl.New("answer").Parse("invalid. 60 {{ .Class }} SOA a.invalid. b.invalid. (1 60 60 60 60)"))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
rcodeServfailTemplate := template{
@ -59,7 +58,7 @@ func TestHandler(t *testing.T) {
rcode: dns.RcodeServerFailure,
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
brokenTemplate := template{
@ -67,7 +66,7 @@ func TestHandler(t *testing.T) {
answer: []*gotmpl.Template{gotmpl.Must(gotmpl.New("answer").Parse("{{ .Name }} 60 IN TXT \"{{ index .Match 2 }}\""))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
nonRRTemplate := template{
@ -75,7 +74,7 @@ func TestHandler(t *testing.T) {
answer: []*gotmpl.Template{gotmpl.Must(gotmpl.New("answer").Parse("{{ .Name }}"))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
nonRRAdditionalTemplate := template{
@ -83,7 +82,7 @@ func TestHandler(t *testing.T) {
additional: []*gotmpl.Template{gotmpl.Must(gotmpl.New("answer").Parse("{{ .Name }}"))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}
nonRRAuthoritativeTemplate := template{
@ -91,7 +90,7 @@ func TestHandler(t *testing.T) {
authority: []*gotmpl.Template{gotmpl.Must(gotmpl.New("authority").Parse("{{ .Name }}"))},
qclass: dns.ClassANY,
qtype: dns.TypeANY,
fthrough: fall.F{Zones: []string{"."}},
fall: fall.F{Zones: []string{"."}},
zones: []string{"."},
}