Reconnection when signal server is not active and minor changes

electron/app/deep-links.ts

@@ -4,9 +4,24 @@ import { createWindow, getMainWindow } from '../window/create-window';
 
 const CUSTOM_PROTOCOL = 'toju';
 const DEEP_LINK_PREFIX = `${CUSTOM_PROTOCOL}://`;
+const DEV_SINGLE_INSTANCE_EXIT_CODE_ENV = 'METOYOU_SINGLE_INSTANCE_EXIT_CODE';
 
 let pendingDeepLink: string | null = null;
 
+function resolveDevSingleInstanceExitCode(): number | null {
+  const rawValue = process.env[DEV_SINGLE_INSTANCE_EXIT_CODE_ENV];
+
+  if (!rawValue) {
+    return null;
+  }
+
+  const parsedValue = Number.parseInt(rawValue, 10);
+
+  return Number.isInteger(parsedValue) && parsedValue > 0
+    ? parsedValue
+    : null;
+}
+
 function extractDeepLink(argv: string[]): string | null {
   return argv.find((argument) => typeof argument === 'string' && argument.startsWith(DEEP_LINK_PREFIX)) || null;
 }
@@ -60,7 +75,14 @@ export function initializeDeepLinkHandling(): boolean {
   const hasSingleInstanceLock = app.requestSingleInstanceLock();
 
   if (!hasSingleInstanceLock) {
-    app.quit();
+    const devExitCode = resolveDevSingleInstanceExitCode();
+
+    if (devExitCode != null) {
+      app.exit(devExitCode);
+    } else {
+      app.quit();
+    }
+
     return false;
   }
 

server/src/routes/invite-utils.ts

@@ -4,6 +4,10 @@ function buildOrigin(protocol: string, host: string): string {
   return `${protocol}://${host}`.replace(/\/+$/, '');
 }
 
+function originFromUrl(url: URL): string {
+  return buildOrigin(url.protocol.replace(':', ''), url.host);
+}
+
 export function getRequestOrigin(request: Request): string {
   const forwardedProtoHeader = request.get('x-forwarded-proto');
   const forwardedHostHeader = request.get('x-forwarded-host');
@@ -15,18 +19,24 @@ export function getRequestOrigin(request: Request): string {
 
 export function deriveWebAppOrigin(signalOrigin: string): string {
   const url = new URL(signalOrigin);
-  const host = url.host;
 
-  if (host === 'signal.toju.app') {
+  if (url.hostname === 'signal.toju.app' && !url.port) {
     return 'https://web.toju.app';
   }
 
-  if (host.startsWith('signal.')) {
-    return buildOrigin(url.protocol.replace(':', ''), host.replace(/^signal\./, 'web.'));
+  if (url.hostname.startsWith('signal.')) {
+    url.hostname = url.hostname.replace(/^signal\./, 'web.');
+
+    if (url.port === '3001') {
+      url.port = '4200';
+    }
+
+    return originFromUrl(url);
   }
 
-  if (['localhost:3001', '127.0.0.1:3001'].includes(host)) {
-    return buildOrigin(url.protocol.replace(':', ''), host.replace(/:3001$/, ':4200'));
+  if (url.port === '3001') {
+    url.port = '4200';
+    return originFromUrl(url);
   }
 
   return 'https://web.toju.app';

server/src/routes/servers.ts

@@ -14,6 +14,7 @@ import {
   buildSignalingUrl,
   createServerInvite,
   joinServerWithAccess,
+  leaveServerUser,
   passwordHashForInput,
   ServerAccessError,
   kickServerUser,
@@ -341,6 +342,24 @@ router.post('/:id/moderation/unban', async (req, res) => {
   res.json({ ok: true });
 });
 
+router.post('/:id/leave', async (req, res) => {
+  const { id: serverId } = req.params;
+  const { userId } = req.body;
+  const server = await getServerById(serverId);
+
+  if (!server) {
+    return res.status(404).json({ error: 'Server not found', errorCode: 'SERVER_NOT_FOUND' });
+  }
+
+  if (!userId) {
+    return res.status(400).json({ error: 'Missing userId', errorCode: 'MISSING_USER' });
+  }
+
+  await leaveServerUser(serverId, String(userId));
+
+  res.json({ ok: true });
+});
+
 router.post('/:id/heartbeat', async (req, res) => {
   const { id } = req.params;
   const { currentUsers } = req.body;

server/src/services/server-access.service.ts

@@ -63,6 +63,10 @@ function normalizePassword(password?: string | null): string | null {
   return normalized.length > 0 ? normalized : null;
 }
 
+function isServerOwner(server: ServerEntity, userId: string): boolean {
+  return server.ownerId === userId;
+}
+
 export function hashServerPassword(password: string): string {
   return crypto.createHash('sha256').update(password)
     .digest('hex');
@@ -231,6 +235,18 @@ export async function joinServerWithAccess(options: {
     throw new ServerAccessError(403, 'BANNED', 'Banned users cannot join this server');
   }
 
+  if (isServerOwner(server, options.userId)) {
+    const existingMembership = await findServerMembership(server.id, options.userId);
+
+    await ensureServerMembership(server.id, options.userId);
+
+    return {
+      joinedBefore: !!existingMembership,
+      server: rowToServer(server),
+      via: 'membership'
+    };
+  }
+
   if (options.inviteId) {
     const inviteBundle = await getActiveServerInvite(options.inviteId);
 
@@ -305,6 +321,11 @@ export async function authorizeWebSocketJoin(serverId: string, userId: string):
       reason: 'BANNED' };
   }
 
+  if (isServerOwner(server, userId)) {
+    await ensureServerMembership(serverId, userId);
+    return { allowed: true };
+  }
+
   const membership = await findServerMembership(serverId, userId);
 
   if (membership) {
@@ -327,6 +348,10 @@ export async function kickServerUser(serverId: string, userId: string): Promise<
   await removeServerMembership(serverId, userId);
 }
 
+export async function leaveServerUser(serverId: string, userId: string): Promise<void> {
+  await removeServerMembership(serverId, userId);
+}
+
 export async function banServerUser(options: BanServerUserOptions): Promise<ServerBanEntity> {
   await removeServerMembership(options.serverId, options.userId);
 

src/app/core/services/server-directory.service.ts

@@ -563,10 +563,10 @@ export class ServerDirectoryService {
       );
   }
 
-  /** Notify the directory that a user has left a server. */
-  notifyLeave(serverId: string, userId: string): Observable<void> {
+  /** Remove a user's remembered membership after leaving a server. */
+  notifyLeave(serverId: string, userId: string, selector?: ServerSourceSelector): Observable<void> {
     return this.http
-      .post<void>(`${this.buildApiBaseUrl()}/servers/${serverId}/leave`, { userId })
+      .post<void>(`${this.buildApiBaseUrl(selector)}/servers/${serverId}/leave`, { userId })
       .pipe(
         catchError((error) => {
           console.error('Failed to notify leave:', error);

src/app/features/invite/invite.component.html

@@ -2,7 +2,9 @@
   <div class="mx-auto flex min-h-[calc(100vh-8rem)] max-w-4xl items-center justify-center">
     <div class="w-full overflow-hidden rounded-3xl border border-border bg-card/90 shadow-2xl backdrop-blur">
       <div class="border-b border-border bg-gradient-to-br from-primary/20 via-transparent to-blue-500/10 px-6 py-8 sm:px-10">
-        <div class="inline-flex items-center rounded-full border border-border bg-secondary/70 px-3 py-1 text-[11px] font-semibold uppercase tracking-[0.25em] text-muted-foreground">
+        <div
+          class="inline-flex items-center rounded-full border border-border bg-secondary/70 px-3 py-1 text-[11px] font-semibold uppercase tracking-[0.25em] text-muted-foreground"
+        >
           Invite link
         </div>
         <h1 class="mt-4 text-3xl font-semibold tracking-tight text-foreground sm:text-4xl">
@@ -51,9 +53,7 @@
                 @if (invite()!.server.hasPassword) {
                   <span class="rounded-full bg-secondary px-2.5 py-1 text-muted-foreground">Password bypassed by invite</span>
                 }
-                <span class="rounded-full bg-primary/10 px-2.5 py-1 text-primary">
-                  Expires {{ invite()!.expiresAt | date:'medium' }}
-                </span>
+                <span class="rounded-full bg-primary/10 px-2.5 py-1 text-primary"> Expires {{ invite()!.expiresAt | date: 'medium' }} </span>
               </div>
             </div>
           }

src/app/features/server-search/server-search.component.html

@@ -165,9 +165,7 @@
                 Owner: <span class="text-foreground/80">{{ server.ownerName || server.ownerId || 'Unknown' }}</span>
               </div>
               @if (server.hasPassword && !server.isPrivate && !isServerMarkedBanned(server)) {
-                <div class="text-muted-foreground">
-                  Access: <span class="text-foreground/80">Password required</span>
-                </div>
+                <div class="text-muted-foreground">Access: <span class="text-foreground/80">Password required</span></div>
               }
             </div>
           </button>
@@ -327,9 +325,7 @@
             id="create-server-password"
             class="w-full px-3 py-2 bg-secondary rounded-lg border border-border text-foreground placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-primary"
           />
-          <p class="mt-1 text-xs text-muted-foreground">
-            Users who already joined keep access even if you change the password later.
-          </p>
+          <p class="mt-1 text-xs text-muted-foreground">Users who already joined keep access even if you change the password later.</p>
         </div>
       </div>
 

src/app/features/servers/servers-rail.component.ts

@@ -123,6 +123,7 @@ export class ServersRailComponent {
     this.prepareVoiceContext(room);
 
     if (this.webrtc.hasJoinedServer(room.id) && roomWsUrl === currentWsUrl) {
+      this.store.dispatch(RoomsActions.setSignalServerReconnecting({ isReconnecting: false }));
       this.store.dispatch(RoomsActions.viewServer({ room }));
     } else {
       await this.attemptJoinRoom(room);
@@ -301,10 +302,31 @@ export class ServersRailComponent {
       if (errorCode === 'BANNED') {
         this.bannedServerName.set(room.name);
         this.showBannedDialog.set(true);
+        return;
+      }
+
+      if (this.shouldFallbackToOfflineView(error)) {
+        this.closePasswordDialog();
+        this.store.dispatch(RoomsActions.setSignalServerReconnecting({ isReconnecting: true }));
+        this.store.dispatch(RoomsActions.viewServer({ room }));
       }
     }
   }
 
+  private shouldFallbackToOfflineView(error: unknown): boolean {
+    const serverError = error as {
+      error?: { errorCode?: string };
+      status?: number;
+    };
+    const errorCode = serverError?.error?.errorCode;
+    const status = serverError?.status;
+
+    return errorCode === 'SERVER_NOT_FOUND'
+      || status === 0
+      || status === 404
+      || (typeof status === 'number' && status >= 500);
+  }
+
   private toServerInfo(room: Room) {
     return {
       id: room.id,

src/app/features/shell/title-bar.component.html

@@ -13,6 +13,16 @@
       />
       <span class="text-sm font-semibold text-foreground truncate">{{ roomName() }}</span>
 
+      @if (showRoomReconnectNotice()) {
+        <span class="inline-flex items-center gap-1 rounded bg-destructive/15 px-2 py-0.5 text-xs text-destructive">
+          <ng-icon
+            name="lucideRefreshCw"
+            class="h-3.5 w-3.5 animate-spin"
+          />
+          Reconnecting to signal server…
+        </span>
+      }
+
       @if (roomDescription()) {
         <span class="hidden md:inline text-sm text-muted-foreground border-l border-border pl-2 truncate">
           {{ roomDescription() }}

src/app/features/shell/title-bar.component.ts

@@ -15,10 +15,14 @@ import {
   lucideX,
   lucideChevronLeft,
   lucideHash,
-  lucideMenu
+  lucideMenu,
+  lucideRefreshCw
 } from '@ng-icons/lucide';
 import { Router } from '@angular/router';
-import { selectCurrentRoom } from '../../store/rooms/rooms.selectors';
+import {
+  selectCurrentRoom,
+  selectIsSignalServerReconnecting
+} from '../../store/rooms/rooms.selectors';
 import { RoomsActions } from '../../store/rooms/rooms.actions';
 import { selectCurrentUser } from '../../store/users/users.selectors';
 import { ServerDirectoryService } from '../../core/services/server-directory.service';
@@ -52,7 +56,8 @@ type ElectronWindow = Window & {
       lucideX,
       lucideChevronLeft,
       lucideHash,
-      lucideMenu })
+        lucideMenu,
+        lucideRefreshCw })
   ],
   templateUrl: './title-bar.component.html'
 })
@@ -80,9 +85,17 @@ export class TitleBarComponent {
   isReconnecting = computed(() => !this.webrtc.isConnected() && this.webrtc.hasEverConnected());
   isAuthed = computed(() => !!this.currentUser());
   currentRoom = this.store.selectSignal(selectCurrentRoom);
+  isSignalServerReconnecting = this.store.selectSignal(selectIsSignalServerReconnecting);
   inRoom = computed(() => !!this.currentRoom());
   roomName = computed(() => this.currentRoom()?.name || '');
   roomDescription = computed(() => this.currentRoom()?.description || '');
+  showRoomReconnectNotice = computed(() =>
+    this.inRoom() && (
+      this.isSignalServerReconnecting()
+      || this.webrtc.shouldShowConnectionError()
+      || this.isReconnecting()
+    )
+  );
   private _showMenu = signal(false);
   showMenu = computed(() => this._showMenu());
   showLeaveConfirm = signal(false);

src/app/store/rooms/rooms.actions.ts

@@ -67,6 +67,7 @@ export const RoomsActions = createActionGroup({
     'Rename Channel': props<{ channelId: string; name: string }>(),
 
     'Clear Search Results': emptyProps(),
-    'Set Connecting': props<{ isConnecting: boolean }>()
+    'Set Connecting': props<{ isConnecting: boolean }>(),
+    'Set Signal Server Reconnecting': props<{ isReconnecting: boolean }>()
   }
 });

src/app/store/rooms/rooms.effects.ts

@@ -95,6 +95,7 @@ function isWrongServer(
 
 interface RoomPresenceSignalingMessage {
   type: string;
+  reason?: string;
   serverId?: string;
   users?: { oderId: string; displayName: string }[];
   oderId?: string;
@@ -471,6 +472,15 @@ export class RoomsEffects {
           });
         }
 
+        if (currentUser && room) {
+          this.serverDirectory.notifyLeave(roomId, currentUser.id, {
+            sourceId: room.sourceId,
+            sourceUrl: room.sourceUrl
+          }).subscribe({
+            error: () => {}
+          });
+        }
+
         // Delete from local DB
         this.db.deleteRoom(roomId);
 
@@ -764,7 +774,11 @@ export class RoomsEffects {
                 })
               );
 
-            return [UsersActions.clearUsers(), ...joinActions];
+            return [
+              RoomsActions.setSignalServerReconnecting({ isReconnecting: false }),
+              UsersActions.clearUsers(),
+              ...joinActions
+            ];
           }
 
           case 'user_joined': {
@@ -780,6 +794,7 @@ export class RoomsEffects {
             };
 
             return [
+              RoomsActions.setSignalServerReconnecting({ isReconnecting: false }),
               UsersActions.userJoined({
                 user: buildSignalingUser(joinedUser, buildKnownUserExtras(currentRoom, joinedUser.oderId))
               })
@@ -794,7 +809,20 @@ export class RoomsEffects {
               return EMPTY;
 
             this.knownVoiceUsers.delete(signalingMessage.oderId);
-            return [UsersActions.userLeft({ userId: signalingMessage.oderId })];
+            return [
+              RoomsActions.setSignalServerReconnecting({ isReconnecting: false }),
+              UsersActions.userLeft({ userId: signalingMessage.oderId })
+            ];
+          }
+
+          case 'access_denied': {
+            if (isWrongServer(signalingMessage.serverId, viewedServerId))
+              return EMPTY;
+
+            if (signalingMessage.reason !== 'SERVER_NOT_FOUND')
+              return EMPTY;
+
+            return [RoomsActions.setSignalServerReconnecting({ isReconnecting: true })];
           }
 
           default:

src/app/store/rooms/rooms.reducer.ts

@@ -82,6 +82,8 @@ export interface RoomsState {
   isConnecting: boolean;
   /** Whether the user is connected to a room. */
   isConnected: boolean;
+  /** Whether the current room is using locally cached data while reconnecting. */
+  isSignalServerReconnecting: boolean;
   /** Whether rooms are being loaded from local storage. */
   loading: boolean;
   /** Most recent error message, if any. */
@@ -98,6 +100,7 @@ export const initialState: RoomsState = {
   isSearching: false,
   isConnecting: false,
   isConnected: false,
+  isSignalServerReconnecting: false,
   loading: false,
   error: null,
   activeChannelId: 'general'
@@ -159,6 +162,7 @@ export const roomsReducer = createReducer(
       currentRoom: enriched,
       savedRooms: upsertRoom(state.savedRooms, enriched),
       isConnecting: false,
+      isSignalServerReconnecting: false,
       isConnected: true,
       activeChannelId: 'general'
     };
@@ -185,6 +189,7 @@ export const roomsReducer = createReducer(
       currentRoom: enriched,
       savedRooms: upsertRoom(state.savedRooms, enriched),
       isConnecting: false,
+      isSignalServerReconnecting: false,
       isConnected: true,
       activeChannelId: 'general'
     };
@@ -206,6 +211,7 @@ export const roomsReducer = createReducer(
     ...state,
     currentRoom: null,
     roomSettings: null,
+    isSignalServerReconnecting: false,
     isConnecting: false,
     isConnected: false
   })),
@@ -279,6 +285,7 @@ export const roomsReducer = createReducer(
   // Delete room
   on(RoomsActions.deleteRoomSuccess, (state, { roomId }) => ({
     ...state,
+    isSignalServerReconnecting: state.currentRoom?.id === roomId ? false : state.isSignalServerReconnecting,
     savedRooms: state.savedRooms.filter((room) => room.id !== roomId),
     currentRoom: state.currentRoom?.id === roomId ? null : state.currentRoom
   })),
@@ -286,6 +293,7 @@ export const roomsReducer = createReducer(
   // Forget room (local only)
   on(RoomsActions.forgetRoomSuccess, (state, { roomId }) => ({
     ...state,
+    isSignalServerReconnecting: state.currentRoom?.id === roomId ? false : state.isSignalServerReconnecting,
     savedRooms: state.savedRooms.filter((room) => room.id !== roomId),
     currentRoom: state.currentRoom?.id === roomId ? null : state.currentRoom
   })),
@@ -295,6 +303,7 @@ export const roomsReducer = createReducer(
     ...state,
     currentRoom: enrichRoom(room),
     savedRooms: upsertRoom(state.savedRooms, room),
+    isSignalServerReconnecting: false,
     isConnected: true
   })),
 
@@ -303,6 +312,7 @@ export const roomsReducer = createReducer(
     ...state,
     currentRoom: null,
     roomSettings: null,
+    isSignalServerReconnecting: false,
     isConnected: false
   })),
 
@@ -367,6 +377,11 @@ export const roomsReducer = createReducer(
     isConnecting
   })),
 
+  on(RoomsActions.setSignalServerReconnecting, (state, { isReconnecting }) => ({
+    ...state,
+    isSignalServerReconnecting: isReconnecting
+  })),
+
   // Channel management
   on(RoomsActions.selectChannel, (state, { channelId }) => ({
     ...state,

src/app/store/rooms/rooms.selectors.ts

@@ -26,6 +26,10 @@ export const selectIsConnected = createSelector(
   selectRoomsState,
   (state) => state.isConnected
 );
+export const selectIsSignalServerReconnecting = createSelector(
+  selectRoomsState,
+  (state) => state.isSignalServerReconnecting
+);
 export const selectRoomsError = createSelector(
   selectRoomsState,
   (state) => state.error

tools/launch-electron.js

@@ -1,5 +1,8 @@
 const { spawn } = require('child_process');
 
+const DEV_SINGLE_INSTANCE_EXIT_CODE = 23;
+const DEV_SINGLE_INSTANCE_EXIT_CODE_ENV = 'METOYOU_SINGLE_INSTANCE_EXIT_CODE';
+
 function isWaylandSession(env) {
   const sessionType = String(env.XDG_SESSION_TYPE || '').trim().toLowerCase();
 
@@ -44,11 +47,40 @@ function buildElectronArgs(argv) {
   return args;
 }
 
+function isDevelopmentLaunch(env) {
+  return String(env.NODE_ENV || '').trim().toLowerCase() === 'development';
+}
+
+function buildChildEnv(env) {
+  const nextEnv = { ...env };
+
+  if (isDevelopmentLaunch(env)) {
+    nextEnv[DEV_SINGLE_INSTANCE_EXIT_CODE_ENV] = String(DEV_SINGLE_INSTANCE_EXIT_CODE);
+  }
+
+  return nextEnv;
+}
+
+function keepProcessAliveForExistingInstance() {
+  console.log(
+    'Electron is already running; keeping the dev services alive and routing links to the open window.'
+  );
+
+  const intervalId = setInterval(() => {}, 60_000);
+  const shutdown = () => {
+    clearInterval(intervalId);
+    process.exit(0);
+  };
+
+  process.once('SIGINT', shutdown);
+  process.once('SIGTERM', shutdown);
+}
+
 function main() {
   const electronBinary = resolveElectronBinary();
   const args = buildElectronArgs(process.argv.slice(2));
   const child = spawn(electronBinary, args, {
-    env: process.env,
+    env: buildChildEnv(process.env),
     stdio: 'inherit'
   });
 
@@ -58,6 +90,11 @@ function main() {
   });
 
   child.on('exit', (code, signal) => {
+    if (code === DEV_SINGLE_INSTANCE_EXIT_CODE) {
+      keepProcessAliveForExistingInstance();
+      return;
+    }
+
     if (signal) {
       process.kill(process.pid, signal);
       return;