kuba/fm-dx-webserver
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send time in messages, and also make sure that there are no phantom users (it will happen when a user's connection is suddenly stopped, or their ip changes)

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kuba
2026-07-21 20:55:03 +02:00
parent 820e281ac5
commit b670a74bb3
4 changed files with 37 additions and 75 deletions
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server/web.js
+16 -34
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@@ -66,20 +66,17 @@ wss.on('connection', (ws, request) => {
// Per-IP limit connection open
if (clientIp) {
const isLocalIp = (clientIp === '127.0.0.1' || clientIp === '::1' || clientIp.startsWith('192.168.') || clientIp.startsWith('10.') || clientIp.startsWith('172.16.'));
if (!isLocalIp) {
if (!ipConnectionCounts.has(clientIp)) ipConnectionCounts.set(clientIp, 0);
const currentCount = ipConnectionCounts.get(clientIp);
if (currentCount >= MAX_CONNECTIONS_PER_IP) {
ws.close(1008, 'Too many open connections from this IP');
const lastLogTime = ipLogTimestamps.get(clientIp) || 0;
const now = Date.now();
if (now - lastLogTime > IP_LOG_INTERVAL_MS) {
logWarn(`Web client \x1b[31mclosed: limit exceeded\x1b[0m (${clientIp}) \x1b[90m[${currentUsers}]`);
ipLogTimestamps.set(clientIp, now);
} return;
} ipConnectionCounts.set(clientIp, currentCount + 1);
}
if (!ipConnectionCounts.has(clientIp)) ipConnectionCounts.set(clientIp, 0);
const currentCount = ipConnectionCounts.get(clientIp);
if (currentCount >= MAX_CONNECTIONS_PER_IP) {
ws.close(1008, 'Too many open connections from this IP');
const lastLogTime = ipLogTimestamps.get(clientIp) || 0;
const now = Date.now();
if (now - lastLogTime > IP_LOG_INTERVAL_MS) {
logWarn(`Web client \x1b[31mclosed: limit exceeded\x1b[0m (${clientIp}) \x1b[90m[${currentUsers}]`);
ipLogTimestamps.set(clientIp, now);
} return;
} ipConnectionCounts.set(clientIp, currentCount + 1);
}
if(currentUsers >= MAX_USERS) {
@@ -88,10 +85,7 @@ wss.on('connection', (ws, request) => {
return;
}
if (clientIp !== '127.0.0.1' ||
(request.headers && request.headers['origin'] && request.headers['origin'].trim() !== '')) {
currentUsers++;
}
if (clientIp !== '127.0.0.1') currentUsers++;
if (timeoutAntenna) clearTimeout(timeoutAntenna);
@@ -170,24 +164,12 @@ wss.on('connection', (ws, request) => {
ws.on('close', (code) => {
// Per-IP limit connection closed
if (clientIp) {
const isLocalIp = (
clientIp === '127.0.0.1' ||
clientIp === '::1' ||
clientIp.startsWith('192.168.') ||
clientIp.startsWith('10.') ||
clientIp.startsWith('172.16.')
);
if (!isLocalIp) {
const current = ipConnectionCounts.get(clientIp) || 1;
ipConnectionCounts.set(clientIp, Math.max(0, current - 1));
}
const current = ipConnectionCounts.get(clientIp) || 1;
ipConnectionCounts.set(clientIp, Math.max(0, current - 1));
}
if (clientIp !== '127.0.0.1' ||
(request.socket && request.socket.remoteAddress && request.socket.remoteAddress !== '::ffff:127.0.0.1') ||
(request.headers && request.headers['origin'] && request.headers['origin'].trim() !== '')) {
currentUsers--;
} dataHandler.showOnlineUsers(currentUsers);
if (clientIp !== '127.0.0.1') currentUsers--;
dataHandler.showOnlineUsers(currentUsers);
const index = storage.connectedUsers.findIndex(user => user.ip === clientIp);
if (index !== -1) storage.connectedUsers.splice(index, 1);