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Merge pull request #136 from xi2/fix-handling-of-cnames

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DNS Challenge: Fix handling of CNAMEs
This commit is contained in:
xenolf 2016-02-20 01:24:12 +01:00
commit 7dcfb4a92b
1 changed files with 8 additions and 10 deletions
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18
acme/dns_challenge.go
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@ -82,16 +82,14 @@ func checkDNSPropagation(fqdn, value string) (bool, error) {
if err != nil {
return false, err
}
if r.Rcode != dns.RcodeSuccess {
return false, fmt.Errorf("Could not resolve %s -> %s", fqdn, dns.RcodeToString[r.Rcode])
}
// If we see a CNAME here then use the alias
for _, rr := range r.Answer {
if cn, ok := rr.(*dns.CNAME); ok {
if cn.Hdr.Name == fqdn {
fqdn = cn.Target
break
if r.Rcode == dns.RcodeSuccess {
// If we see a CNAME here then use the alias
for _, rr := range r.Answer {
if cn, ok := rr.(*dns.CNAME); ok {
if cn.Hdr.Name == fqdn {
fqdn = cn.Target
break
}
}
}
}