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[client] Normalize DNS record names to lowercase in local handler update (#3323)

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* [client] Normalize DNS record names to lowercase in lookup
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hakansa 2025-02-14 13:13:40 +03:00 committed by GitHub
parent c4a6dafd27
commit 039a985f41
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2 changed files with 3 additions and 0 deletions
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2
client/internal/dns/local.go
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@ -2,6 +2,7 @@ package dns
import ( import (
"fmt" "fmt"
"strings"
"sync" "sync"
"github.com/miekg/dns" "github.com/miekg/dns"
@ -60,6 +61,7 @@ func (d *localResolver) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
func (d *localResolver) lookupRecord(r *dns.Msg) dns.RR { func (d *localResolver) lookupRecord(r *dns.Msg) dns.RR {
question := r.Question[0] question := r.Question[0]
question.Name = strings.ToLower(question.Name)
record, found := d.records.Load(buildRecordKey(question.Name, question.Qclass, question.Qtype)) record, found := d.records.Load(buildRecordKey(question.Name, question.Qclass, question.Qtype))
if !found { if !found {
return nil return nil

1
client/internal/dns/server.go
View File

@ -454,6 +454,7 @@ func (s *DefaultServer) buildLocalHandlerUpdate(customZones []nbdns.CustomZone)
if record.Class != nbdns.DefaultClass { if record.Class != nbdns.DefaultClass {
return nil, nil, fmt.Errorf("received an invalid class type: %s", record.Class) return nil, nil, fmt.Errorf("received an invalid class type: %s", record.Class)
} }
key := buildRecordKey(record.Name, class, uint16(record.Type)) key := buildRecordKey(record.Name, class, uint16(record.Type))
localRecords[key] = record localRecords[key] = record
} }