Added full agent ping/pong support on RDP sessions.

This commit is contained in:
Ylian Saint-Hilaire 2022-05-05 13:17:34 -07:00
parent 4ce9e09e91
commit 93e8f2cdcf
2 changed files with 177 additions and 152 deletions

View File

@ -116,7 +116,16 @@ module.exports.CreateMstscRelay = function (parent, db, ws, req, args, domain) {
obj.relaySocket.resume(); obj.relaySocket.resume();
} }
} else { } else {
if (typeof data == 'string') return; // Only process binary data, this will include ping/ping if (typeof data == 'string') {
// Forward any ping/pong commands to the browser
var cmd = null;
try { cmd = JSON.parse(data); } catch (ex) { }
if ((cmd != null) && (cmd.ctrlChannel == '102938')) {
if (cmd.type == 'ping') { send(['ping']); }
else if (cmd.type == 'pong') { send(['pong']); }
}
return;
}
obj.wsClient._socket.pause(); obj.wsClient._socket.pause();
try { try {
obj.relaySocket.write(data, function () { obj.relaySocket.write(data, function () {
@ -280,6 +289,8 @@ module.exports.CreateMstscRelay = function (parent, db, ws, req, args, domain) {
case 'wheel': { if (rdpClient) { rdpClient.sendWheelEvent(msg[1], msg[2], msg[3], msg[4]); } break; } case 'wheel': { if (rdpClient) { rdpClient.sendWheelEvent(msg[1], msg[2], msg[3], msg[4]); } break; }
case 'scancode': { if (rdpClient) { rdpClient.sendKeyEventScancode(msg[1], msg[2]); } break; } case 'scancode': { if (rdpClient) { rdpClient.sendKeyEventScancode(msg[1], msg[2]); } break; }
case 'unicode': { if (rdpClient) { rdpClient.sendKeyEventUnicode(msg[1], msg[2]); } break; } case 'unicode': { if (rdpClient) { rdpClient.sendKeyEventUnicode(msg[1], msg[2]); } break; }
case 'ping': { try { obj.wsClient.send('{"ctrlChannel":102938,"type":"ping"}'); } catch (ex) { } break; }
case 'pong': { try { obj.wsClient.send('{"ctrlChannel":102938,"type":"pong"}'); } catch (ex) { } break; }
case 'disconnect': { obj.close(); break; } case 'disconnect': { obj.close(); break; }
} }
} catch (ex) { } catch (ex) {
@ -416,70 +427,74 @@ module.exports.CreateSshRelay = function (parent, db, ws, req, args, domain) {
const protocol = (args.tlsoffload) ? 'ws' : 'wss'; const protocol = (args.tlsoffload) ? 'ws' : 'wss';
var domainadd = ''; var domainadd = '';
if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' } 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=11&auth=' + obj.xcookie; // Protocol 11 is Web-SSH const url = protocol + '://localhost:' + args.port + '/' + domainadd + (((obj.mtype == 3) && (obj.relaynodeid == null)) ? 'local' : 'mesh') + 'relay.ashx?p=11&auth=' + obj.xcookie; // Protocol 11 is Web-SSH
parent.parent.debug('relay', 'SSH: Connection websocket to ' + url); parent.parent.debug('relay', 'SSH: Connection websocket to ' + url);
obj.wsClient = new WebSocket(url, options); obj.wsClient = new WebSocket(url, options);
obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); }); obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); });
obj.wsClient.on('message', function (data) { // Make sure to handle flow control. obj.wsClient.on('message', function (data) { // Make sure to handle flow control.
if ((obj.relayActive == false) && (data == 'c')) { if (obj.relayActive == false) {
obj.relayActive = true; if ((data == 'c') || (data == 'cr')) {
obj.relayActive = true;
// Create a serial tunnel && SSH module // Create a serial tunnel && SSH module
obj.ser = new SerialTunnel(); obj.ser = new SerialTunnel();
const Client = require('ssh2').Client; const Client = require('ssh2').Client;
obj.sshClient = new Client(); obj.sshClient = new Client();
obj.sshClient.on('ready', function () { // Authentication was successful. obj.sshClient.on('ready', function () { // Authentication was successful.
// If requested, save the credentials // If requested, save the credentials
if (obj.keep === true) saveSshCredentials(); if (obj.keep === true) saveSshCredentials();
obj.sessionid = Buffer.from(parent.crypto.randomBytes(9), 'binary').toString('base64'); obj.sessionid = Buffer.from(parent.crypto.randomBytes(9), 'binary').toString('base64');
obj.startTime = Date.now(); obj.startTime = Date.now();
// Event start of session // Event start of session
try { try {
const user = parent.users[obj.cookie.userid]; const user = parent.users[obj.cookie.userid];
const username = (user != null) ? user.name : null; const username = (user != null) ? user.name : null;
const event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: user._id, username: user.name, msgid: 148, msgArgs: [obj.sessionid], msg: "Started Web-SSH session \"" + obj.sessionid + "\".", protocol: PROTOCOL_WEBSSH }; const event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: user._id, username: user.name, msgid: 148, msgArgs: [obj.sessionid], msg: "Started Web-SSH session \"" + obj.sessionid + "\".", protocol: PROTOCOL_WEBSSH };
parent.parent.DispatchEvent(['*', obj.nodeid, user._id, obj.meshid], obj, event); parent.parent.DispatchEvent(['*', obj.nodeid, user._id, obj.meshid], obj, event);
} catch (ex) { console.log(ex); } } catch (ex) { console.log(ex); }
obj.sshClient.shell(function (err, stream) { // Start a remote shell obj.sshClient.shell(function (err, stream) { // Start a remote shell
if (err) { obj.close(); return; } if (err) { obj.close(); return; }
obj.sshShell = stream; obj.sshShell = stream;
obj.sshShell.setWindow(obj.termSize.rows, obj.termSize.cols, obj.termSize.height, obj.termSize.width); obj.sshShell.setWindow(obj.termSize.rows, obj.termSize.cols, obj.termSize.height, obj.termSize.width);
obj.sshShell.on('close', function () { obj.close(); }); obj.sshShell.on('close', function () { obj.close(); });
obj.sshShell.on('data', function (data) { obj.ws.send('~' + data.toString()); }); obj.sshShell.on('data', function (data) { obj.ws.send('~' + data.toString()); });
});
obj.ws.send(JSON.stringify({ action: 'connected' }));
});
obj.sshClient.on('error', function (err) {
if (err.level == 'client-authentication') { try { obj.ws.send(JSON.stringify({ action: 'autherror' })); } catch (ex) { } }
if (err.level == 'client-timeout') { try { obj.ws.send(JSON.stringify({ action: 'sessiontimeout' })); } catch (ex) { } }
obj.close();
}); });
obj.ws.send(JSON.stringify({ action: 'connected' }));
});
obj.sshClient.on('error', function (err) {
if (err.level == 'client-authentication') { try { obj.ws.send(JSON.stringify({ action: 'autherror' })); } catch (ex) { } }
if (err.level == 'client-timeout') { try { obj.ws.send(JSON.stringify({ action: 'sessiontimeout' })); } catch (ex) { } }
obj.close();
});
// Setup the serial tunnel, SSH ---> Relay WS // Setup the serial tunnel, SSH ---> Relay WS
obj.ser.forwardwrite = function (data) { if ((data.length > 0) && (obj.wsClient != null)) { try { obj.wsClient.send(data); } catch (ex) { } } }; obj.ser.forwardwrite = function (data) { if ((data.length > 0) && (obj.wsClient != null)) { try { obj.wsClient.send(data); } catch (ex) { } } };
// Connect the SSH module to the serial tunnel // Connect the SSH module to the serial tunnel
const connectionOptions = { sock: obj.ser } const connectionOptions = { sock: obj.ser }
if (typeof obj.username == 'string') { connectionOptions.username = obj.username; } if (typeof obj.username == 'string') { connectionOptions.username = obj.username; }
if (typeof obj.password == 'string') { connectionOptions.password = obj.password; } if (typeof obj.password == 'string') { connectionOptions.password = obj.password; }
if (typeof obj.privateKey == 'string') { connectionOptions.privateKey = obj.privateKey; } if (typeof obj.privateKey == 'string') { connectionOptions.privateKey = obj.privateKey; }
if (typeof obj.privateKeyPass == 'string') { connectionOptions.passphrase = obj.privateKeyPass; } if (typeof obj.privateKeyPass == 'string') { connectionOptions.passphrase = obj.privateKeyPass; }
try { try {
obj.sshClient.connect(connectionOptions); obj.sshClient.connect(connectionOptions);
} catch (ex) { } catch (ex) {
// Exception, this is generally because we did not provide proper credentials. Ask again. // Exception, this is generally because we did not provide proper credentials. Ask again.
obj.relayActive = false; obj.relayActive = false;
delete obj.sshClient; delete obj.sshClient;
delete obj.ser.forwardwrite; delete obj.ser.forwardwrite;
obj.close(); obj.close();
return; return;
}
// We are all set, start receiving data
ws._socket.resume();
} }
// We are all set, start receiving data
ws._socket.resume();
} else { } else {
if (typeof data == 'string') return; // Only process binary data, this will include ping/ping
// Relay WS --> SSH // Relay WS --> SSH
if ((data.length > 0) && (obj.ser != null)) { try { obj.ser.updateBuffer(data); } catch (ex) { console.log(ex); } } if ((data.length > 0) && (obj.ser != null)) { try { obj.ser.updateBuffer(data); } catch (ex) { console.log(ex); } }
} }
@ -708,71 +723,75 @@ module.exports.CreateSshTerminalRelay = function (parent, db, ws, req, domain, u
const protocol = (args.tlsoffload) ? 'ws' : 'wss'; const protocol = (args.tlsoffload) ? 'ws' : 'wss';
var domainadd = ''; var domainadd = '';
if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' } 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=11&auth=' + authCookie // Protocol 11 is Web-SSH const url = protocol + '://localhost:' + args.port + '/' + domainadd + (((obj.mtype == 3) && (obj.relaynodeid == null)) ? 'local' : 'mesh') + 'relay.ashx?p=11&auth=' + authCookie // Protocol 11 is Web-SSH
parent.parent.debug('relay', 'SSH: Connection websocket to ' + url); parent.parent.debug('relay', 'SSH: Connection websocket to ' + url);
obj.wsClient = new WebSocket(url, options); obj.wsClient = new WebSocket(url, options);
obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); }); obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); });
obj.wsClient.on('message', function (data) { // Make sure to handle flow control. obj.wsClient.on('message', function (data) { // Make sure to handle flow control.
if ((obj.relayActive == false) && (data == 'c')) { if (obj.relayActive == false) {
obj.relayActive = true; if ((data == 'c') || (data == 'cr')) {
obj.relayActive = true;
// Create a serial tunnel && SSH module // Create a serial tunnel && SSH module
obj.ser = new SerialTunnel(); obj.ser = new SerialTunnel();
const Client = require('ssh2').Client; const Client = require('ssh2').Client;
obj.sshClient = new Client(); obj.sshClient = new Client();
obj.sshClient.on('ready', function () { // Authentication was successful. obj.sshClient.on('ready', function () { // Authentication was successful.
// If requested, save the credentials // If requested, save the credentials
if (obj.keep === true) saveSshCredentials(); if (obj.keep === true) saveSshCredentials();
obj.sessionid = Buffer.from(parent.crypto.randomBytes(9), 'binary').toString('base64'); obj.sessionid = Buffer.from(parent.crypto.randomBytes(9), 'binary').toString('base64');
obj.startTime = Date.now(); obj.startTime = Date.now();
try { try {
// Event start of session // Event start of session
const event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: user._id, username: user.name, msgid: 148, msgArgs: [obj.sessionid], msg: "Started Web-SSH session \"" + obj.sessionid + "\".", protocol: PROTOCOL_WEBSSH }; const event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: user._id, username: user.name, msgid: 148, msgArgs: [obj.sessionid], msg: "Started Web-SSH session \"" + obj.sessionid + "\".", protocol: PROTOCOL_WEBSSH };
parent.parent.DispatchEvent(['*', obj.nodeid, user._id, obj.meshid], obj, event); parent.parent.DispatchEvent(['*', obj.nodeid, user._id, obj.meshid], obj, event);
} catch (ex) { } catch (ex) {
console.log(ex); console.log(ex);
} }
obj.sshClient.shell(function (err, stream) { // Start a remote shell obj.sshClient.shell(function (err, stream) { // Start a remote shell
if (err) { obj.close(); return; } if (err) { obj.close(); return; }
obj.sshShell = stream; obj.sshShell = stream;
obj.sshShell.setWindow(obj.termSize.rows, obj.termSize.cols, obj.termSize.height, obj.termSize.width); obj.sshShell.setWindow(obj.termSize.rows, obj.termSize.cols, obj.termSize.height, obj.termSize.width);
obj.sshShell.on('close', function () { obj.close(); }); obj.sshShell.on('close', function () { obj.close(); });
obj.sshShell.on('data', function (data) { obj.ws.send('~' + data.toString()); }); obj.sshShell.on('data', function (data) { obj.ws.send('~' + data.toString()); });
});
obj.connected = true;
obj.ws.send('c');
});
obj.sshClient.on('error', function (err) {
if (err.level == 'client-authentication') { try { obj.ws.send(JSON.stringify({ action: 'autherror' })); } catch (ex) { } }
if (err.level == 'client-timeout') { try { obj.ws.send(JSON.stringify({ action: 'sessiontimeout' })); } catch (ex) { } }
obj.close();
}); });
obj.connected = true; // Setup the serial tunnel, SSH ---> Relay WS
obj.ws.send('c'); obj.ser.forwardwrite = function (data) { if ((data.length > 0) && (obj.wsClient != null)) { try { obj.wsClient.send(data); } catch (ex) { } } };
});
obj.sshClient.on('error', function (err) {
if (err.level == 'client-authentication') { try { obj.ws.send(JSON.stringify({ action: 'autherror' })); } catch (ex) { } }
if (err.level == 'client-timeout') { try { obj.ws.send(JSON.stringify({ action: 'sessiontimeout' })); } catch (ex) { } }
obj.close();
});
// Setup the serial tunnel, SSH ---> Relay WS // Connect the SSH module to the serial tunnel
obj.ser.forwardwrite = function (data) { if ((data.length > 0) && (obj.wsClient != null)) { try { obj.wsClient.send(data); } catch (ex) { } } }; const connectionOptions = { sock: obj.ser }
if (typeof obj.username == 'string') { connectionOptions.username = obj.username; }
if (typeof obj.password == 'string') { connectionOptions.password = obj.password; }
if (typeof obj.privateKey == 'string') { connectionOptions.privateKey = obj.privateKey; }
if (typeof obj.privateKeyPass == 'string') { connectionOptions.passphrase = obj.privateKeyPass; }
try {
obj.sshClient.connect(connectionOptions);
} catch (ex) {
// Exception, this is generally because we did not provide proper credentials. Ask again.
obj.relayActive = false;
delete obj.sshClient;
delete obj.ser.forwardwrite;
try { ws.send(JSON.stringify({ action: 'sshauth' })) } catch (ex) { }
}
// Connect the SSH module to the serial tunnel // We are all set, start receiving data
const connectionOptions = { sock: obj.ser } ws._socket.resume();
if (typeof obj.username == 'string') { connectionOptions.username = obj.username; }
if (typeof obj.password == 'string') { connectionOptions.password = obj.password; }
if (typeof obj.privateKey == 'string') { connectionOptions.privateKey = obj.privateKey; }
if (typeof obj.privateKeyPass == 'string') { connectionOptions.passphrase = obj.privateKeyPass; }
try {
obj.sshClient.connect(connectionOptions);
} catch (ex) {
// Exception, this is generally because we did not provide proper credentials. Ask again.
obj.relayActive = false;
delete obj.sshClient;
delete obj.ser.forwardwrite;
try { ws.send(JSON.stringify({ action: 'sshauth' })) } catch (ex) { }
} }
// We are all set, start receiving data
ws._socket.resume();
} else { } else {
if (typeof data == 'string') return; // Only process binary data, this will include ping/ping
// Relay WS --> SSH // Relay WS --> SSH
if ((data.length > 0) && (obj.ser != null)) { try { obj.ser.updateBuffer(data); } catch (ex) { console.log(ex); } } if ((data.length > 0) && (obj.ser != null)) { try { obj.ser.updateBuffer(data); } catch (ex) { console.log(ex); } }
} }
@ -1015,65 +1034,69 @@ module.exports.CreateSshFilesRelay = function (parent, db, ws, req, domain, user
const protocol = (args.tlsoffload) ? 'ws' : 'wss'; const protocol = (args.tlsoffload) ? 'ws' : 'wss';
var domainadd = ''; var domainadd = '';
if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' } 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=13&auth=' + authCookie // Protocol 13 is Web-SSH-Files const url = protocol + '://localhost:' + args.port + '/' + domainadd + (((obj.mtype == 3) && (obj.relaynodeid == null)) ? 'local' : 'mesh') + 'relay.ashx?p=13&auth=' + authCookie // Protocol 13 is Web-SSH-Files
parent.parent.debug('relay', 'SSH: Connection websocket to ' + url); parent.parent.debug('relay', 'SSH: Connection websocket to ' + url);
obj.wsClient = new WebSocket(url, options); obj.wsClient = new WebSocket(url, options);
obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); }); obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); });
obj.wsClient.on('message', function (data) { // Make sure to handle flow control. obj.wsClient.on('message', function (data) { // Make sure to handle flow control.
if ((obj.relayActive == false) && (data == 'c')) { if (obj.relayActive == false) {
obj.relayActive = true; if ((data == 'c') || (data == 'cr')) {
obj.relayActive = true;
// Create a serial tunnel && SSH module // Create a serial tunnel && SSH module
obj.ser = new SerialTunnel(); obj.ser = new SerialTunnel();
const Client = require('ssh2').Client; const Client = require('ssh2').Client;
obj.sshClient = new Client(); obj.sshClient = new Client();
obj.sshClient.on('ready', function () { // Authentication was successful. obj.sshClient.on('ready', function () { // Authentication was successful.
// If requested, save the credentials // If requested, save the credentials
if (obj.keep === true) saveSshCredentials(); if (obj.keep === true) saveSshCredentials();
obj.sessionid = Buffer.from(parent.crypto.randomBytes(9), 'binary').toString('base64'); obj.sessionid = Buffer.from(parent.crypto.randomBytes(9), 'binary').toString('base64');
obj.startTime = Date.now(); obj.startTime = Date.now();
// Event start of session // Event start of session
try { try {
const event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: user._id, username: user.name, msgid: 149, msgArgs: [obj.sessionid], msg: "Started Web-SFTP session \"" + obj.sessionid + "\".", protocol: PROTOCOL_WEBSFTP }; const event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: user._id, username: user.name, msgid: 149, msgArgs: [obj.sessionid], msg: "Started Web-SFTP session \"" + obj.sessionid + "\".", protocol: PROTOCOL_WEBSFTP };
parent.parent.DispatchEvent(['*', obj.nodeid, user._id, obj.meshid], obj, event); parent.parent.DispatchEvent(['*', obj.nodeid, user._id, obj.meshid], obj, event);
} catch (ex) { console.log(ex); } } catch (ex) { console.log(ex); }
obj.sshClient.sftp(function(err, sftp) { obj.sshClient.sftp(function (err, sftp) {
if (err) { obj.close(); return; } if (err) { obj.close(); return; }
obj.connected = true; obj.connected = true;
obj.sftp = sftp; obj.sftp = sftp;
obj.ws.send('c'); obj.ws.send('c');
});
});
obj.sshClient.on('error', function (err) {
if (err.level == 'client-authentication') { try { obj.ws.send(JSON.stringify({ action: 'autherror' })); } catch (ex) { } }
if (err.level == 'client-timeout') { try { obj.ws.send(JSON.stringify({ action: 'sessiontimeout' })); } catch (ex) { } }
obj.close();
}); });
});
obj.sshClient.on('error', function (err) {
if (err.level == 'client-authentication') { try { obj.ws.send(JSON.stringify({ action: 'autherror' })); } catch (ex) { } }
if (err.level == 'client-timeout') { try { obj.ws.send(JSON.stringify({ action: 'sessiontimeout' })); } catch (ex) { } }
obj.close();
});
// Setup the serial tunnel, SSH ---> Relay WS // Setup the serial tunnel, SSH ---> Relay WS
obj.ser.forwardwrite = function (data) { if ((data.length > 0) && (obj.wsClient != null)) { try { obj.wsClient.send(data); } catch (ex) { } } }; obj.ser.forwardwrite = function (data) { if ((data.length > 0) && (obj.wsClient != null)) { try { obj.wsClient.send(data); } catch (ex) { } } };
// Connect the SSH module to the serial tunnel // Connect the SSH module to the serial tunnel
const connectionOptions = { sock: obj.ser } const connectionOptions = { sock: obj.ser }
if (typeof obj.username == 'string') { connectionOptions.username = obj.username; } if (typeof obj.username == 'string') { connectionOptions.username = obj.username; }
if (typeof obj.password == 'string') { connectionOptions.password = obj.password; } if (typeof obj.password == 'string') { connectionOptions.password = obj.password; }
if (typeof obj.privateKey == 'string') { connectionOptions.privateKey = obj.privateKey; } if (typeof obj.privateKey == 'string') { connectionOptions.privateKey = obj.privateKey; }
if (typeof obj.privateKeyPass == 'string') { connectionOptions.passphrase = obj.privateKeyPass; } if (typeof obj.privateKeyPass == 'string') { connectionOptions.passphrase = obj.privateKeyPass; }
try { try {
obj.sshClient.connect(connectionOptions); obj.sshClient.connect(connectionOptions);
} catch (ex) { } catch (ex) {
// Exception, this is generally because we did not provide proper credentials. Ask again. // Exception, this is generally because we did not provide proper credentials. Ask again.
obj.relayActive = false; obj.relayActive = false;
delete obj.sshClient; delete obj.sshClient;
delete obj.ser.forwardwrite; delete obj.ser.forwardwrite;
try { ws.send(JSON.stringify({ action: 'sshauth' })) } catch (ex) { } try { ws.send(JSON.stringify({ action: 'sshauth' })) } catch (ex) { }
}
// We are all set, start receiving data
ws._socket.resume();
} }
// We are all set, start receiving data
ws._socket.resume();
} else { } else {
if (typeof data == 'string') return; // Only process binary data, this will include ping/ping
// Relay WS --> SSH // Relay WS --> SSH
if ((data.length > 0) && (obj.ser != null)) { try { obj.ser.updateBuffer(data); } catch (ex) { console.log(ex); } } if ((data.length > 0) && (obj.ser != null)) { try { obj.ser.updateBuffer(data); } catch (ex) { console.log(ex); } }
} }

View File

@ -83,6 +83,8 @@ var CreateRDPDesktop = function (canvasid) {
obj.Stop(); obj.Stop();
break; break;
} }
case 'ping': { obj.socket.send('["pong"]'); break; }
case 'pong': { break; }
} }
} else { } else {
// This is binary bitmap data, store it. // This is binary bitmap data, store it.