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Added support for Browser Ping/Pong in RDP sessions.

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Ylian Saint-Hilaire 2022-05-05 12:38:03 -07:00
parent b301efc207
commit 4ce9e09e91
1 changed files with 14 additions and 6 deletions
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20
apprelays.js
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@ -73,8 +73,8 @@ module.exports.CreateMstscRelay = function (parent, db, ws, req, args, domain) {
if (obj.wsClient) { obj.wsClient.close(); delete obj.wsClient; }
if (obj.tcpServer) { obj.tcpServer.close(); delete obj.tcpServer; }
if (rdpClient) { rdpClient.close(); rdpClient = null; }
if ((arg == 1) || (arg == null)) { try { ws.close(); } catch (e) { console.log(e); } } // Soft close, close the websocket
if (arg == 2) { try { ws._socket._parent.end(); } catch (e) { console.log(e); } } // Hard close, close the TCP socket
if ((arg == 1) || (arg == null)) { try { ws.close(); } catch (ex) { console.log(ex); } } // Soft close, close the websocket
if (arg == 2) { try { ws._socket._parent.end(); } catch (ex) { console.log(ex); } } // Hard close, close the TCP socket
obj.ws.removeAllListeners();
obj.relayActive = false;
@ -105,16 +105,24 @@ module.exports.CreateMstscRelay = function (parent, db, ws, req, args, domain) {
const protocol = (args.tlsoffload) ? 'ws' : 'wss';
var domainadd = '';
if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' }
const url = protocol + '://localhost:' + args.port + '/' + domainadd + (((obj.mtype == 3) && (obj.relaynodeid == null)) ? 'local' : 'mesh') + 'relay.ashx?noping=1&p=10&auth=' + obj.infos.ip; // Protocol 10 is Web-RDP
const url = protocol + '://localhost:' + args.port + '/' + domainadd + (((obj.mtype == 3) && (obj.relaynodeid == null)) ? 'local' : 'mesh') + 'relay.ashx?p=10&auth=' + obj.infos.ip; // Protocol 10 is Web-RDP
parent.parent.debug('relay', 'RDP: Connection websocket to ' + url);
obj.wsClient = new WebSocket(url, options);
obj.wsClient.on('open', function () { parent.parent.debug('relay', 'RDP: Relay websocket open'); });
obj.wsClient.on('message', function (data) { // Make sure to handle flow control.
if ((obj.relayActive == false) && (data == 'c')) {
obj.relayActive = true; obj.relaySocket.resume();
if (obj.relayActive == false) {
if ((data == 'c') || (data == 'cr')) {
obj.relayActive = true;
obj.relaySocket.resume();
}
} else {
if (typeof data == 'string') return; // Only process binary data, this will include ping/ping
obj.wsClient._socket.pause();
try { obj.relaySocket.write(data, function () { try { obj.wsClient._socket.resume(); } catch (ex) { } }); } catch (ex) { obj.close(); }
try {
obj.relaySocket.write(data, function () {
try { obj.wsClient._socket.resume(); } catch (ex) { console.log(ex); }
});
} catch (ex) { console.log(ex); obj.close(); }
}
});
obj.wsClient.on('close', function () { parent.parent.debug('relay', 'RDP: Relay websocket closed'); obj.close(); });