typescript src/room (#437)

src/room/RoomRedirect.tsx

@@ -0,0 +1,42 @@
+/*
+Copyright 2022 Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React, { useEffect } from "react";
+import { useLocation, useHistory } from "react-router-dom";
+
+import { defaultHomeserverHost } from "../matrix-utils";
+import { LoadingView } from "../FullScreenView";
+
+export function RoomRedirect() {
+  const { pathname } = useLocation();
+  const history = useHistory();
+
+  useEffect(() => {
+    let roomId = pathname;
+
+    if (pathname.startsWith("/")) {
+      roomId = roomId.substring(1, roomId.length);
+    }
+
+    if (!roomId.startsWith("#") && !roomId.startsWith("!")) {
+      roomId = `#${roomId}:${defaultHomeserverHost}`;
+    }
+
+    history.replace(`/room/${roomId.toLowerCase()}`);
+  }, [pathname, history]);
+
+  return <LoadingView />;
+}