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style: restore classic remote control UI and sync architectural fixes

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Timo
2026-04-22 13:32:10 +02:00
parent 0509b993e5
commit 622db23f38
8 changed files with 633 additions and 299 deletions
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server/index.js
+21 -6
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@@ -36,6 +36,7 @@ const io = new Server(httpServer, {
*/
const rooms = new Map();
const socketToRoom = new Map();
const peerToSocket = new Map(); // peerId -> socketId (Global lookup)
function log(type, message, details = '') {
const timestamp = new Date().toISOString();
@@ -246,6 +247,7 @@ io.on('connection', (socket) => {
lastSeen: Date.now()
});
socketToRoom.set(socket.id, { roomId, peerId });
peerToSocket.set(peerId, socket.id);
socket.to(roomId).emit(EVENTS.PEER_STATUS, { peerId, username: username || null, tabTitle: tabTitle || null, status: 'joined' });
socket.emit(EVENTS.ROOM_DATA, {
@@ -323,20 +325,27 @@ io.on('connection', (socket) => {
}
}
socketToRoom.delete(socket.id);
if (peerToSocket.get(peerId) === socket.id) {
peerToSocket.delete(peerId);
}
}
});
socket.on(EVENTS.EVENT_ACK, (data) => {
if (!data.targetId) return;
const targetSocket = Array.from(io.sockets.sockets.values()).find(s => {
const roomData = socketToRoom.get(s.id);
return roomData && roomData.peerId === data.targetId;
});
if (targetSocket) {
targetSocket.emit(EVENTS.EVENT_ACK, {
const senderMapping = socketToRoom.get(socket.id);
const targetSocketId = peerToSocket.get(data.targetId);
const targetMapping = targetSocketId ? socketToRoom.get(targetSocketId) : null;
// Security: Only relay ACK if both peers are in the same room
if (senderMapping && targetMapping && senderMapping.roomId === targetMapping.roomId) {
io.to(targetSocketId).emit(EVENTS.EVENT_ACK, {
senderId: data.senderId,
actionTimestamp: data.actionTimestamp
});
} else {
log('SECURITY', `Blocked cross-room ACK attempt from ${socket.id} to ${data.targetId}`);
}
});
@@ -357,6 +366,9 @@ io.on('connection', (socket) => {
}
}
socketToRoom.delete(socket.id);
if (peerToSocket.get(peerId) === socket.id) {
peerToSocket.delete(peerId);
}
}
});
});
@@ -378,6 +390,9 @@ setInterval(() => {
room.peerIds.delete(sid);
room.peerData.delete(sid);
socketToRoom.delete(sid);
if (peerToSocket.get(data.peerId) === sid) {
peerToSocket.delete(data.peerId);
}
io.to(roomId).emit(EVENTS.PEER_STATUS, { peerId: data.peerId, status: 'left' });
log('CLEANUP', `Pruned dead peer ${data.peerId} from room ${roomId}`);