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plugin/file: preserve case in SRV record names and targets per RFC 6763 (#7402)

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Syed Azeez
2025-07-15 07:26:59 +05:30
committed by GitHub
parent ff88ad37f7
commit d8906ce610
3 changed files with 53 additions and 5 deletions
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7
plugin/file/zone.go
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@@ -73,7 +73,10 @@ func (z *Zone) CopyWithoutApex() *Zone {
// Insert inserts r into z.
func (z *Zone) Insert(r dns.RR) error {
r.Header().Name = strings.ToLower(r.Header().Name)
// r.Header().Name = strings.ToLower(r.Header().Name)
if r.Header().Rrtype != dns.TypeSRV {
r.Header().Name = strings.ToLower(r.Header().Name)
}
switch h := r.Header().Rrtype; h {
case dns.TypeNS:
@@ -108,7 +111,7 @@ func (z *Zone) Insert(r dns.RR) error {
case dns.TypeMX:
r.(*dns.MX).Mx = strings.ToLower(r.(*dns.MX).Mx)
case dns.TypeSRV:
r.(*dns.SRV).Target = strings.ToLower(r.(*dns.SRV).Target)
// r.(*dns.SRV).Target = strings.ToLower(r.(*dns.SRV).Target)
}
z.Tree.Insert(r)