adds wasm deleteRR & support in sig0

golang/sig0/update.go

@@ -90,6 +90,24 @@ func (signer *Signer) UpdateRR(rr dns.RR) error {
  return nil
 }
 
+func (signer *Signer) RemoveParsedRR(rr string) error {
+ rrRemove, err := dns.NewRR(rr)
+ if err != nil {
+ return fmt.Errorf("sig0: failed to parse RR: %w", err)
+ }
+
+ return signer.RemoveRR(rrRemove)
+}
+
+func (signer *Signer) RemoveRR(rr dns.RR) error {
+ if signer.update == nil {
+ return fmt.Errorf("no update in progress")
+ }
+
+ signer.update.Remove([]dns.RR{rr})
+ return nil
+}
+
 // UpdateA is a convenience function to update an A record.
 // Need to call StartUpdate first, then UpdateA for each record to update, then SignUpdate.
 func (signer *Signer) UpdateA(subZone, zone, addr string) error {

golang/wasm/wrapper_js.go

@@ -150,6 +150,15 @@ func newUpdater(_ js.Value, args []js.Value) any {
  return js.Null()
  }),
 
+ "deleteRR": js.FuncOf(func(this js.Value, args []js.Value) any {
+ rr := args[0].String()
+ err := signer.RemoveParsedRR(rr)
+ if err != nil {
+ return err.Error()
+ }
+ return js.Null()
+ }),
+
  // send signed update
  // no arguments
  // returns a promise