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federation/pdu: add AddSignature helper method

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This commit is contained in:
Tulir Asokan 2026-03-01 12:37:13 +02:00
commit 36c353abc7
2 changed files with 14 additions and 7 deletions
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13
federation/pdu/pdu.go
View file

@ -123,6 +123,19 @@ func (pdu *PDU) ToClientEvent(roomVersion id.RoomVersion) (*event.Event, error)
return evt, nil
}
func (pdu *PDU) AddSignature(serverName string, keyID id.KeyID, signature string) {
if signature == "" {
return
}
if pdu.Signatures == nil {
pdu.Signatures = make(map[string]map[id.KeyID]string)
}
if _, ok := pdu.Signatures[serverName]; !ok {
pdu.Signatures[serverName] = make(map[id.KeyID]string)
}
pdu.Signatures[serverName][keyID] = signature
}
func marshalCanonical(data any) (jsontext.Value, error) {
marshaledBytes, err := json.Marshal(data)
if err != nil {

8
federation/pdu/signature.go
View file

@ -28,13 +28,7 @@ func (pdu *PDU) Sign(roomVersion id.RoomVersion, serverName string, keyID id.Key
return fmt.Errorf("failed to marshal redacted PDU to sign: %w", err)
}
signature := ed25519.Sign(privateKey, rawJSON)
if pdu.Signatures == nil {
pdu.Signatures = make(map[string]map[id.KeyID]string)
}
if _, ok := pdu.Signatures[serverName]; !ok {
pdu.Signatures[serverName] = make(map[id.KeyID]string)
}
pdu.Signatures[serverName][keyID] = base64.RawStdEncoding.EncodeToString(signature)
pdu.AddSignature(serverName, keyID, base64.RawStdEncoding.EncodeToString(signature))
return nil
}