dnscontrol/models/t_svcb.go

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package models
import (
"fmt"
"strings"
"github.com/miekg/dns"
)
// SetTargetSVCB sets the SVCB fields.
func (rc *RecordConfig) SetTargetSVCB(priority uint16, target string, params []dns.SVCBKeyValue) error {
rc.SvcPriority = priority
rc.SetTarget(target)
paramsStr := []string{}
for _, kv := range params {
paramsStr = append(paramsStr, fmt.Sprintf("%s=%s", kv.Key(), kv.String()))
}
rc.SvcParams = strings.Join(paramsStr, " ")
if rc.Type == "" {
rc.Type = "SVCB"
}
if rc.Type != "SVCB" && rc.Type != "HTTPS" {
panic("assertion failed: SetTargetSVCB called when .Type is not SVCB or HTTPS")
}
return nil
}
// SetTargetSVCBString is like SetTargetSVCB but accepts one big string and the origin so parsing can be done using miekg/dns.
func (rc *RecordConfig) SetTargetSVCBString(origin, contents string) error {
if rc.Type == "" {
rc.Type = "SVCB"
}
record, err := dns.NewRR(fmt.Sprintf("%s. %s %s", origin, rc.Type, contents))
if err != nil {
return fmt.Errorf("could not parse SVCB record: %s", err)
}
switch r := record.(type) {
case *dns.HTTPS:
return rc.SetTargetSVCB(r.Priority, r.Target, r.Value)
case *dns.SVCB:
return rc.SetTargetSVCB(r.Priority, r.Target, r.Value)
}
return nil
}