Update gomatrixserverlib and use Unsigned AS event prop

src/github.com/matrix-org/dendrite/appservice/storage/appservice_events_table.go

@@ -174,9 +174,12 @@ func retrieveEvents(eventRows *sql.Rows) (events []gomatrixserverlib.Application
 			maxID = id
 		}
 
-		// Get age of the event from original timestamp and current time
-		// TODO: Consider removing age as not many app services use it
-		event.Age = nowMilli - event.OriginServerTimestamp
+		// Portion of the event that is unsigned due to rapid change
+		event.Unsigned = gomatrixserverlib.ApplicationServiceUnsigned{
+			// Get age of the event from original timestamp and current time
+			// TODO: Consider removing age as not many app services use it
+			Age: nowMilli - event.OriginServerTimestamp,
+		}
 
 		// TODO: Synapse does this. It's unnecessary to send Sender and UserID as the
 		// same value. Do app services really require this? :)

vendor/manifest

@@ -135,7 +135,7 @@
 		{
 			"importpath": "github.com/matrix-org/gomatrixserverlib",
 			"repository": "https://github.com/matrix-org/gomatrixserverlib",
-			"revision": "38a4f0f648bf357adc4bdb601cdc0535cee14e21",
+			"revision": "4c45af876608399b13cf891e2d9f89f01c67137a",
 			"branch": "master"
 		},
 		{

vendor/src/github.com/matrix-org/gomatrixserverlib/appservice.go

@@ -15,17 +15,23 @@
 
 package gomatrixserverlib
 
+// ApplicationServiceUnsigned is the contents of the unsigned field of an
+// ApplicationServiceEvent.
+type ApplicationServiceUnsigned struct {
+	Age int64 `json:"age,omitempty"`
+}
+
 // ApplicationServiceEvent is an event format that is sent off to an
 // application service as part of a transaction.
 type ApplicationServiceEvent struct {
-	Age                   int64   `json:"age,omitempty"`
-	Content               RawJSON `json:"content,omitempty"`
-	EventID               string  `json:"event_id,omitempty"`
-	OriginServerTimestamp int64   `json:"origin_server_ts,omitempty"`
-	RoomID                string  `json:"room_id,omitempty"`
-	Sender                string  `json:"sender,omitempty"`
-	Type                  string  `json:"type,omitempty"`
-	UserID                string  `json:"user_id,omitempty"`
+	Unsigned              ApplicationServiceUnsigned `json:"unsigned,omitempty"`
+	Content               RawJSON                    `json:"content,omitempty"`
+	EventID               string                     `json:"event_id,omitempty"`
+	OriginServerTimestamp int64                      `json:"origin_server_ts,omitempty"`
+	RoomID                string                     `json:"room_id,omitempty"`
+	Sender                string                     `json:"sender,omitempty"`
+	Type                  string                     `json:"type,omitempty"`
+	UserID                string                     `json:"user_id,omitempty"`
 }
 
 // ApplicationServiceTransaction is the transaction that is sent off to an

vendor/src/github.com/matrix-org/gomatrixserverlib/eventcontent.go

@@ -261,6 +261,9 @@ func newPowerLevelContentFromAuthEvents(authEvents AuthEventProvider, creatorUse
 	// If there is no power level event then the creator gets level 100
 	// https://github.com/matrix-org/synapse/blob/v0.18.5/synapse/api/auth.py#L569
 	c.userLevels = map[string]int64{creatorUserID: 100}
+	// If there is no power level event then the state_default is level 0
+	// https://github.com/matrix-org/synapse/blob/v0.18.5/synapse/api/auth.py#L997
+	c.stateDefaultLevel = 0
 	return
 }
 

vendor/src/github.com/matrix-org/gomatrixserverlib/federationtypes.go

@@ -37,6 +37,12 @@ type RespState struct {
 	AuthEvents []Event `json:"auth_chain"`
 }
 
+// A RespEventAuth is the content of a response to GET /_matrix/federation/v1/event_auth/{roomID}/{eventID}
+type RespEventAuth struct {
+	// A list of events needed to authenticate the state events.
+	AuthEvents []Event `json:"auth_chain"`
+}
+
 // Events combines the auth events and the state events and returns
 // them in an order where every event comes after its auth events.
 // Each event will only appear once in the output list.