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|
package dns
import (
"dove/models/dns"
"strings"
)
type ResolvedRecords struct {
ARecords []dns.ARecord
AAAARecords []dns.AAAARecord
CNAMERecords []dns.CNAMERecord
MXRecords []dns.MXRecord
TXTRecords []dns.TXTRecord
SRVRecords []dns.SRVRecord
}
func IsLocalDomain(queryName string) bool {
_, tldName := splitQueryName(queryName)
return tldExists(tldName)
}
func ResolveA(queryName string) []dns.ARecord {
domainName, tldName, subdomain := splitQueryParts(queryName)
foundDomain := findDomainByFQDN(domainName, tldName)
if foundDomain == nil {
return nil
}
records := FindARecords(foundDomain.ID, subdomain)
if len(records) == 0 && subdomain != "@" {
records = FindARecords(foundDomain.ID, "*")
}
return records
}
func ResolveAAAA(queryName string) []dns.AAAARecord {
domainName, tldName, subdomain := splitQueryParts(queryName)
foundDomain := findDomainByFQDN(domainName, tldName)
if foundDomain == nil {
return nil
}
records := FindAAAARecords(foundDomain.ID, subdomain)
if len(records) == 0 && subdomain != "@" {
records = FindAAAARecords(foundDomain.ID, "*")
}
return records
}
func ResolveCNAME(queryName string) []dns.CNAMERecord {
domainName, tldName, subdomain := splitQueryParts(queryName)
foundDomain := findDomainByFQDN(domainName, tldName)
if foundDomain == nil {
return nil
}
records := FindCNAMERecords(foundDomain.ID, subdomain)
if len(records) == 0 && subdomain != "@" {
records = FindCNAMERecords(foundDomain.ID, "*")
}
return records
}
func ResolveMX(queryName string) []dns.MXRecord {
domainName, tldName, subdomain := splitQueryParts(queryName)
foundDomain := findDomainByFQDN(domainName, tldName)
if foundDomain == nil {
return nil
}
return FindMXRecords(foundDomain.ID, subdomain)
}
func ResolveTXT(queryName string) []dns.TXTRecord {
domainName, tldName, subdomain := splitQueryParts(queryName)
foundDomain := findDomainByFQDN(domainName, tldName)
if foundDomain == nil {
return nil
}
return FindTXTRecords(foundDomain.ID, subdomain)
}
func ResolveSRV(queryName string) []dns.SRVRecord {
domainName, tldName, subdomain := splitQueryParts(queryName)
foundDomain := findDomainByFQDN(domainName, tldName)
if foundDomain == nil {
return nil
}
return FindSRVRecords(foundDomain.ID, subdomain)
}
func splitQueryName(queryName string) (string, string) {
name := strings.TrimSuffix(queryName, ".")
parts := strings.Split(name, ".")
if len(parts) < 2 {
return name, ""
}
tldName := parts[len(parts)-1]
domainName := parts[len(parts)-2]
return domainName, tldName
}
func splitQueryParts(queryName string) (string, string, string) {
name := strings.TrimSuffix(queryName, ".")
parts := strings.Split(name, ".")
if len(parts) < 2 {
return name, "", "@"
}
tldName := parts[len(parts)-1]
domainName := parts[len(parts)-2]
if len(parts) == 2 {
return domainName, tldName, "@"
}
subdomain := strings.Join(parts[:len(parts)-2], ".")
return domainName, tldName, subdomain
}
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