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plugin/template: Support NODATA responses (#1816)

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A NODATA response has no answers and rcode NOERROR, but should have a
SOA record in the authority section.
This commit is contained in:
Tobias Schmidt
2018-05-21 08:45:45 +02:00
committed by Miek Gieben
parent a40345d65f
commit 0d305387f7
2 changed files with 10 additions and 2 deletions
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2
plugin/template/setup.go
View File

@@ -159,7 +159,7 @@ func templateParse(c *caddy.Controller) (handler Handler, err error) {
t.regex = append(t.regex, regexp.MustCompile(".*"))
}
if len(t.answer) == 0 && len(t.additional) == 0 && t.rcode == dns.RcodeSuccess {
if len(t.answer) == 0 && len(t.authority) == 0 && t.rcode == dns.RcodeSuccess {
return handler, c.Errf("no answer section for template found: %v", handler)
}

10
plugin/template/setup_test.go
View File

@@ -100,11 +100,19 @@ func TestSetupParse(t *testing.T) {
}`,
false,
},
{
`template ANY AAAA example.com {
match ip-(?P<a>[0-9]*)-(?P<b>[0-9]*)-(?P<c>[0-9]*)-(?P<d>[0-9]*)[.]example[.]com
authority "example.com 60 IN SOA ns.example.com hostmaster.example.com (1 60 60 60 60)"
fallthrough
}`,
false,
},
{
`template IN ANY example.com {
match "[.](example[.]com[.]dc1[.]example[.]com[.])$"
rcode NXDOMAIN
answer "{{ index .Match 1 }} 60 IN SOA a.{{ index .Match 1 }} b.{{ index .Match 1 }} (1 60 60 60 60)"
authority "{{ index .Match 1 }} 60 IN SOA ns.{{ index .Match 1 }} hostmaster.example.com (1 60 60 60 60)"
fallthrough example.com
}`,
false,