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rewrite: imp code

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This commit is contained in:
Dimitry Kolyshev 2022-12-19 12:50:00 +07:00
parent 12f52f07c5
commit 299371e0fd
1 changed files with 4 additions and 2 deletions
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6
internal/filtering/rewrite/storage.go
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@ -84,7 +84,7 @@ func (s *DefaultStorage) MatchRequest(dReq *urlfilter.DNSRequest) (rws []*rules.
return nil
}
// TODO(a.garipov): Check cnames for cycles on initialisation.
// TODO(a.garipov): Check cnames for cycles on initialization.
cnames := stringutil.NewSet()
host := dReq.Hostname
var lastCNAMERule *rules.NetworkRule
@ -96,8 +96,9 @@ func (s *DefaultStorage) MatchRequest(dReq *urlfilter.DNSRequest) (rws []*rules.
log.Debug("rewrite: cname for %s is %s", host, rwAns)
if dReq.Hostname == rwAns {
// A request for the hostname itself is an exception lastCNAMERule.
// A request for the hostname itself.
// TODO(d.kolyshev): Check rewrite of a pattern onto itself.
log.Debug("rewrite: request for hostname itself for %q", dReq.Hostname)
return nil
}
@ -106,6 +107,7 @@ func (s *DefaultStorage) MatchRequest(dReq *urlfilter.DNSRequest) (rws []*rules.
// An "*.example.com → sub.example.com" rewrite matching in a loop.
//
// See https://github.com/AdguardTeam/AdGuardHome/issues/4016.
log.Debug("rewrite: cname wildcard loop for %q on %q", dReq.Hostname, rwAns)
return []*rules.DNSRewrite{lastDNSRewrite}
}