add more stubs to matrix implementation

src/routes/matrix/index.ts

@@ -29,6 +29,19 @@ const roomToChannelId = (room?: any): number | null => {
 
     return numberId;
 };
+const matrixUserProfile = (matrixUserId: string) => {
+    if (typeof matrixUserId !== "string") return null;
+    const parts = matrixUserId.split(":", 1);
+    if (parts.length !== 1) return null;
+    const suffixedId = parts[0];
+    if (!suffixedId.startsWith("@")) return null;
+    const username = suffixedId.substring(1, suffixedId.length);
+    if (!username || username.length < 3 || username.length > 32) return null;
+
+    return {
+        displayname: username
+    };
+};
 
 interface MatrixSyncCursors {
     [channel_id: number]: number;
@@ -408,10 +421,64 @@ router.get(
     "/_matrix/client/r0/profile/:userId",
     authenticateRoute(),
     (req, res) => {
-        res.json({
-            displayname: req.user.username
-        });
+        res.json(matrixUserProfile(req.params.userId));
     }
 );
 
+router.get(
+    "/_matrix/client/r0/profile/:userId/displayname",
+    authenticateRoute(),
+    (req, res) => {
+        res.json(matrixUserProfile(req.params.userId));
+    }
+);
+
+router.get(
+    "/_matrix/client/r0/thirdparty/protocols",
+    authenticateRoute(),
+    (req, res) => {
+        res.json({});
+    }
+);
+
+router.get(
+    "/_matrix/client/r0/rooms/:roomId/state/:eventType",
+    authenticateRoute(),
+    (req, res) => {
+        if (req.params.eventType === "m.room.topic") {
+            res.json({
+                topic: ""
+            });
+        } else if (req.params.eventType === "m.room.avatar") {
+            res.json({});
+        } else {
+            res.json({
+                errcode: "M_BAD_JSON",
+                error: "Unsupported eventType"
+            });
+        }
+    }
+);
+
+router.get(
+    "/_matrix/client/r0/account/3pid",
+    authenticateRoute(),
+    (req, res) => {
+        res.json({
+            threepids: []
+        });
+    }
+)
+
+router.use((req, res, next) => {
+    //console.log("[matrix debug] [404]");
+    //console.log(`   -> method:   ${req.method}`)
+    //console.log(`   -> path:     ${req.path}`);
+    //console.log(`   -> body:     ${JSON.stringify(req.body)}`);
+    res.status(404).json({
+        errcode: "M_NOT_FOUND",
+        error: "Resource or route not found"
+    });
+});
+
 export default router;