Reconnection when signal server is not active and minor changes

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;