feat: basic connection between frontend and backend

backend/src/app.ts

@@ -14,6 +14,7 @@ import room from './routes/room';
 import user from './routes/user';
 
 const run = () => {
+    // FIXME: Use DB instead of memory optionally
     const sdkConfig = JSON.parse( fs.readFileSync( path.join(
         __dirname,
         '/../config/sdk.config.testing.json'

backend/src/manager/rooms/index.ts

@@ -1,5 +1,6 @@
 import {
     Client,
+    Room,
     RoomStore
 } from './room';
 import {
@@ -16,7 +17,7 @@ const rooms: RoomStore = {};
  * @param room - The name of the room to get
  * @returns The room, or undefined if it is not present
  */
-const get = ( room: string ) => {
+const get = ( room: string ): Room | undefined => {
     return rooms[room];
 };
 
@@ -114,7 +115,9 @@ const close = ( name: string, uid: string ) => {
  * @returns true if update succeeded
  */
 const updateState = ( room: string, uid: string, playing: boolean, index: number, start: number ) => {
-    if ( !rooms[room] || rooms[room].owner !== uid ) return false;
+    if ( !rooms[room] || rooms[room].owner !== uid ) {
+        return false;
+    }
 
     rooms[room].state = {
         'playing': playing,
@@ -149,10 +152,12 @@ const sendUpdate = ( room: string, kind: 'state' | 'playlist' ) => {
 
     if ( !roomObject ) return false;
 
-    roomObject.clients.forEach( client => client.response.write( `data: ${ {
+    roomObject.clients.forEach( client => client.response.write( `data: ${ JSON.stringify( {
         'type': kind,
         'data': JSON.stringify( roomObject[kind] )
-    } }\n\n` ) );
+    } ) }\n\n` ) );
+
+    return true;
 };
 
 /**

backend/src/manager/rooms/sse.ts

@@ -14,7 +14,7 @@ export const sseMiddleware = ( kind: 'client' | 'trackingClient', config?: Confi
 
         const room = rooms.get( request.params.id );
 
-        if ( !room ) response.sendStatus( 404 );
+        if ( !room ) return response.sendStatus( 404 );
 
         response.writeHead( 200, {
             'Content-Type': 'text/event-stream',

backend/src/routes/room/index.ts

@@ -24,12 +24,12 @@ const routes = ( app: express.Application, foss: boolean, config: Config ) => {
         sdk.loginCheck(),
         ownership.middleware(),
         ( request: express.Request, response: express.Response ) => {
-            if ( !request.query.room ) return response.sendStatus( 400 );
+            if ( !request.query.room || !( /^[a-zA-Z0-9-]{3,20}/ ).test( String( request.query.room ) ) ) return response.sendStatus( 400 );
 
             if ( rooms.create( String( request.query.room ), sdk.getUID( request )! ) )
                 response.sendStatus( 200 );
             else
-                response.sendStatus( 500 );
+                response.sendStatus( 409 );
         }
     );
 

backend/src/routes/room/tracking.ts

@@ -39,7 +39,7 @@ const routes = ( app: express.Application, foss: boolean ) => {
         '/room/:id/admin',
         corsManager.middleware( false ),
         sdk.loginCheck(),
-        sseMiddleware( 'client' )
+        sseMiddleware( 'trackingClient' )
     );
 };
 

backend/src/routes/room/update.ts

@@ -31,8 +31,8 @@ const routes = ( app: express.Application, foss: boolean, config: Config ) => {
 
         response.send(
             JSON.stringify( {
-                'state': room.state,
-                'playlist': lastRequest < room.playlist.lastUpdate ? room.playlist : undefined
+                'state': room?.state,
+                'playlist': lastRequest < room!.playlist!.lastUpdate ? room!.playlist : undefined
             } )
         );
     } );
@@ -51,7 +51,7 @@ const routes = ( app: express.Application, foss: boolean, config: Config ) => {
                 if ( rooms.updatePlaylist(
                     request.params.id,
                     sdk.getUID( request )!,
-                    request.body.playlist ? JSON.parse( request.body.playlist ) : []
+                    request.body.playlist ?? []
                 ) )
                     response.sendStatus( 200 );
                 else
@@ -70,8 +70,9 @@ const routes = ( app: express.Application, foss: boolean, config: Config ) => {
         sdk.loginCheck(),
         bodyParser.json(),
         ( request: express.Request, response: express.Response ) => {
-            if ( typeof request.params.id !== 'string' )
+            if ( typeof request.params.id !== 'string' ) {
                 return response.sendStatus( 400 );
+            }
 
             try {
                 if ( rooms.updateState(