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plugin/file: fix local CNAME lookup (#1866)

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* plugin/file: fix local CNAME lookup

Issue #1864 explains it will, when we serve the child zone as well we
should just recursive into ourself (upstream self). Thus relax the
IsSubDomain check in file/lookup.go and just query (even if the query
will hit a remote server).

I've looped over all other plugins that do something similar (CNAME
resolving) and they didn't do the IsSubDomain check; therefor I've
removed it from *file* as well.

Added test in file_upstream_test that shows this failed before but now
results in a reply.

Fixes #1864

* self does not need to be exported

* Fix test

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This commit is contained in:
Miek Gieben
2018-06-12 14:54:37 +01:00
committed by GitHub
parent 6e466d5092
commit 26c41a0c17
5 changed files with 83 additions and 28 deletions
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2
plugin/secondary/setup.go
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@@ -5,8 +5,8 @@ import (
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/file"
"github.com/coredns/coredns/plugin/pkg/parse"
"github.com/coredns/coredns/plugin/pkg/upstream"
"github.com/mholt/caddy"
)