Implement DoublePuppetServerMap

config/bridge.go

@@ -96,6 +96,8 @@ type BridgeConfig struct {
 
 	Relay RelaybotConfig `yaml:"relay"`
 
+	DoublePuppetServerMap map[string]string `yaml:"double_puppet_server_map"`
+
 	usernameTemplate    *template.Template `yaml:"-"`
 	displaynameTemplate *template.Template `yaml:"-"`
 }

custompuppet.go

@@ -84,7 +84,16 @@ func (puppet *Puppet) newCustomIntent() (*appservice.IntentAPI, error) {
 	if len(puppet.CustomMXID) == 0 {
 		return nil, ErrNoCustomMXID
 	}
-	client, err := mautrix.NewClient(puppet.bridge.AS.HomeserverURL, puppet.CustomMXID, puppet.AccessToken)
+	_, homeserver, err := puppet.CustomMXID.Parse()
+	if err != nil {
+		return nil, err
+	}
+	homeserverUrl, found := puppet.bridge.Config.Bridge.DoublePuppetServerMap[homeserver]
+	if !found {
+		puppet.log.Debugfln("Homeserver not found in double puppet server map. Using local homeserver")
+		homeserverUrl = puppet.bridge.AS.HomeserverURL
+	}
+	client, err := mautrix.NewClient(homeserverUrl, puppet.CustomMXID, puppet.AccessToken)
 	if err != nil {
 		return nil, err
 	}

example-config.yaml

@@ -219,6 +219,9 @@ bridge:
         "example.com": user
         "@admin:example.com": admin
 
+    double_puppet_server_map: 
+      "matrix.org": https://matrix.org
+
     relay:
         # Whether relay mode should be allowed. If allowed, `!wa set-relay` can be used to turn any
         # authenticated user into a relaybot for that chat.