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Improved Web-SSH, Web-RDP and session logging.

This commit is contained in:
Ylian Saint-Hilaire 2021-05-05 00:18:41 -07:00
parent 9c676c6fef
commit d17aae0c8f
3 changed files with 74 additions and 49 deletions
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89
apprelays.js
View File

@ -21,26 +21,30 @@ module.exports.CreateMstscRelay = function (parent, db, ws, req, args, domain) {
const WebSocket = require('ws');
var obj = {};
obj.domain = domain;
obj.ws = ws;
obj.wsClient = null;
obj.tcpServer = null;
obj.tcpServerPort = 0;
obj.relaySocket = null;
obj.relayActive = false;
obj.infos = null;
var rdpClient = null;
parent.parent.debug('relay', 'RDP: Request for RDP relay (' + req.clientIp + ')');
// Disconnect
obj.close = function (arg) {
if (obj.ws == null) return;
// Collect how many raw bytes where received and sent.
// We sum both the websocket and TCP client in this case.
//var inTraffc = obj.ws._socket.bytesRead, outTraffc = obj.ws._socket.bytesWritten;
//if (obj.wsClient != null) { inTraffc += obj.wsClient._socket.bytesRead; outTraffc += obj.wsClient._socket.bytesWritten; }
//console.log('WinRDP - in', inTraffc, 'out', outTraffc);
if (obj.wsClient) { obj.wsClient.close(); delete obj.wsClient; }
if (obj.tcpServer) { obj.tcpServer.close(); obj.tcpServer.destroy(); 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 (obj.wsClient) { obj.wsClient.close(); obj.wsClient = null; }
if (obj.tcpServer) { obj.tcpServer.close(); obj.tcpServer = null; }
if (rdpClient) { rdpClient.close(); rdpClient = null; }
delete obj.domain;
obj.ws.removeAllListeners();
obj.relayActive = false;
delete obj.ws;
};
@ -67,11 +71,10 @@ module.exports.CreateMstscRelay = function (parent, db, ws, req, args, domain) {
// Setup the correct URL with domain and use TLS only if needed.
var options = { rejectUnauthorized: false };
if (domain.dns != null) { options.servername = domain.dns; }
var protocol = 'wss';
if (args.tlsoffload) { protocol = 'ws'; }
var protocol = (args.tlsoffload) ? 'ws' : 'wss';
var domainadd = '';
if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' }
var url = protocol + '://127.0.0.1:' + args.port + '/' + domainadd + ((cookie.lc == 1)?'local':'mesh') + 'relay.ashx?noping=1&auth=' + obj.infos.ip;
var url = protocol + '://127.0.0.1:' + args.port + '/' + domainadd + ((cookie.lc == 1) ? 'local' : 'mesh') + 'relay.ashx?noping=1&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'); });
@ -170,48 +173,56 @@ module.exports.CreateSshRelay = function (parent, db, ws, req, args, domain) {
var obj = new require('stream').Duplex(options);
obj.forwardwrite = null;
obj.updateBuffer = function (chunk) { this.push(chunk); };
obj._write = function (chunk, encoding, callback) { if (obj.forwardwrite != null) { obj.forwardwrite(chunk); } else { console.err("Failed to fwd _write."); } if (callback) callback(); }; // Pass data written to forward
obj._write = function (chunk, encoding, callback) { if (obj.forwardwrite != null) { obj.forwardwrite(chunk); } if (callback) callback(); }; // Pass data written to forward
obj._read = function (size) { }; // Push nothing, anything to read should be pushed from updateBuffer()
obj.destroy = function () { delete obj.forwardwrite; }
return obj;
}
const obj = {};
obj.domain = domain;
obj.ws = ws;
obj.relayActive = false;
obj.sshClient = null;
obj.sshShell = null;
obj.termSize = null;
obj.relayActive = false;
obj.wsClient = null;
parent.parent.debug('relay', 'SSH: Request for SSH relay (' + req.clientIp + ')');
// Disconnect
obj.close = function (arg) {
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 (obj.wsClient) { obj.wsClient.close(); obj.wsClient = null; }
//if (obj.tcpServer) { obj.tcpServer.close(); obj.tcpServer = null; }
//if (sshClient) { sshClient.close(); sshClient = null; }
if (obj.ws == null) return;
if (obj.wsClient != null) {
try { obj.wsClient.close(); } catch (ex) { console.log(ex); }
delete obj.wsClient;
}
if (obj.sshClient != null) {
try { obj.sshClient.end(); } catch (ex) { console.log(ex); }
delete obj.sshClient;
}
if (obj.sshShell != null) {
// Collect how many raw bytes where received and sent.
// We sum both the websocket and TCP client in this case.
//var inTraffc = obj.ws._socket.bytesRead, outTraffc = obj.ws._socket.bytesWritten;
//if (obj.wsClient != null) { inTraffc += obj.wsClient._socket.bytesRead; outTraffc += obj.wsClient._socket.bytesWritten; }
//console.log('WinSSH - in', inTraffc, 'out', outTraffc);
if (obj.sshShell) {
obj.sshShell.destroy();
obj.sshShell.removeAllListeners('data');
obj.sshShell.removeAllListeners('close');
try { obj.sshShell.end(); } catch (ex) { console.log(ex); }
delete obj.sshShell;
}
if (obj.sshClient) {
obj.sshClient.destroy();
obj.sshClient.removeAllListeners('ready');
try { obj.sshClient.end(); } catch (ex) { console.log(ex); }
delete obj.sshClient;
}
if (obj.wsClient) {
obj.wsClient.removeAllListeners('open');
obj.wsClient.removeAllListeners('message');
obj.wsClient.removeAllListeners('close');
try { obj.wsClient.close(); } catch (ex) { console.log(ex); }
delete obj.wsClient;
}
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
obj.ws.removeAllListeners();
obj.relayActive = false;
delete obj.termSize;
delete obj.cookie;
delete obj.domain;
delete obj.ws;
};
@ -229,7 +240,7 @@ module.exports.CreateSshRelay = function (parent, db, ws, req, args, domain) {
if (args.tlsoffload) { protocol = 'ws'; }
var domainadd = '';
if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' }
var url = protocol + '://127.0.0.1:' + args.port + '/' + domainadd + ((obj.cookie.lc == 1) ? 'local' : 'mesh') + 'relay.ashx?noping=1&auth=' + req.query.auth;
var url = protocol + '://127.0.0.1:' + args.port + '/' + domainadd + ((obj.cookie.lc == 1) ? 'local' : 'mesh') + 'relay.ashx?noping=1&p=11&auth=' + req.query.auth; // Protocol 11 is Web-SSH
parent.parent.debug('relay', 'SSH: Connection websocket to ' + url);
obj.wsClient = new WebSocket(url, options);
obj.wsClient.on('open', function () { parent.parent.debug('relay', 'SSH: Relay websocket open'); });
@ -306,10 +317,7 @@ module.exports.CreateSshRelay = function (parent, db, ws, req, args, domain) {
// Terminal data
if (obj.sshShell != null) { obj.sshShell.write(msg.substring(1)); }
}
} catch (ex) {
console.log('SSHMessageException', msg, ex);
obj.close();
}
} catch (ex) { obj.close(); }
});
// If error, do nothing
@ -317,9 +325,6 @@ module.exports.CreateSshRelay = function (parent, db, ws, req, args, domain) {
// If the web socket is closed
ws.on('close', function (req) { parent.parent.debug('relay', 'SSH: Browser websocket closed'); obj.close(); });
// Send data on the web socket
//function send(obj) { try { ws.send(JSON.stringify(obj), function () { }); } catch (ex) { } }
return obj;
};

32
meshrelay.js
View File

@ -36,6 +36,17 @@ const MESHRIGHT_RESETOFF = 0x00040000;
const MESHRIGHT_GUESTSHARING = 0x00080000;
const MESHRIGHT_ADMIN = 0xFFFFFFFF;
// Protocol:
// 1 = Terminal
// 2 = Desktop
// 5 = Files
// 10 = Web-RDP
// 11 = Web-SSH
// 12 = Web-VNC
// 100 = Intel AMT WSMAN
// 101 = Intel AMT Redirection
// 200 = Messenger
function checkDeviceSharePublicIdentifier(parent, domain, nodeid, pid, func) {
// Check the public id
parent.db.GetAllTypeNodeFiltered([nodeid], domain.id, 'deviceshare', null, function (err, docs) {
@ -1011,15 +1022,24 @@ function CreateLocalRelayEx(parent, ws, req, domain, user, cookie) {
// Disconnect
obj.close = function (arg) {
if ((arg == 1) || (arg == null)) { try { ws.close(); parent.parent.debug('relay', 'Relay: Soft disconnect'); } catch (e) { console.log(e); } } // Soft close, close the websocket
if (arg == 2) { try { ws._socket._parent.end(); parent.parent.debug('relay', 'Relay: Hard disconnect'); } catch (e) { console.log(e); } } // Hard close, close the TCP socket
// If the web socket is already closed, stop here.
if (obj.ws == null) return;
// Collect how many raw bytes where received and sent.
// We sum both the websocket and TCP client in this case.
var inTraffc = obj.ws._socket.bytesRead, outTraffc = obj.ws._socket.bytesWritten;
if (obj.client != null) { inTraffc += obj.client.bytesRead; outTraffc += obj.client.bytesWritten; }
// Close the web socket
if ((arg == 1) || (arg == null)) { try { obj.ws.close(); parent.parent.debug('relay', 'Relay: Soft disconnect'); } catch (e) { console.log(e); } } // Soft close, close the websocket
if (arg == 2) { try { obj.ws._socket._parent.end(); parent.parent.debug('relay', 'Relay: Hard disconnect'); } catch (e) { console.log(e); } } // Hard close, close the TCP socket
// Update the relay session count
if (obj.relaySessionCounted) { parent.relaySessionCount--; delete obj.relaySessionCounted; }
// Log the disconnection
// Log the disconnection, traffic will be credited to the authenticated user
if (obj.time) {
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, userid: obj.user._id, username: obj.user.name, msgid: 9, msgArgs: [obj.id, obj.req.clientIp, obj.host, Math.floor((Date.now() - obj.time) / 1000)], msg: 'Ended relay session \"' + obj.id + '\" from ' + obj.req.clientIp + ' to ' + obj.host + ', ' + Math.floor((Date.now() - obj.time) / 1000) + ' second(s)', nodeid: obj.req.query.nodeid };
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, userid: obj.user._id, username: obj.user.name, msgid: 9, msgArgs: [obj.id, obj.req.clientIp, obj.host, Math.floor((Date.now() - obj.time) / 1000)], msg: 'Ended relay session \"' + obj.id + '\" from ' + obj.req.clientIp + ' to ' + obj.host + ', ' + Math.floor((Date.now() - obj.time) / 1000) + ' second(s)', nodeid: obj.req.query.nodeid, protocol: req.query.p, in: inTraffc, out: outTraffc };
parent.parent.DispatchEvent(['*', user._id], obj, event);
}
@ -1031,7 +1051,7 @@ function CreateLocalRelayEx(parent, ws, req, domain, user, cookie) {
delete obj.meshid;
delete obj.tcpport;
delete obj.expireTimer;
if (obj.client != null) { obj.client.destroy(); delete obj.client; }
if (obj.client != null) { obj.client.destroy(); delete obj.client; } // Close the client socket
if (obj.pingtimer != null) { clearInterval(obj.pingtimer); delete obj.pingtimer; }
if (obj.pongtimer != null) { clearInterval(obj.pongtimer); delete obj.pongtimer; }
@ -1066,7 +1086,7 @@ function CreateLocalRelayEx(parent, ws, req, domain, user, cookie) {
obj.client.connect(obj.tcpport, node.host, function () {
// Log the start of the connection
obj.time = Date.now();
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, userid: obj.user._id, username: obj.user.name, msgid: 13, msgArgs: [obj.id, obj.req.clientIp, obj.host], msg: 'Started relay session \"' + obj.id + '\" from ' + obj.req.clientIp + ' to ' + obj.host, nodeid: req.query.nodeid };
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, userid: obj.user._id, username: obj.user.name, msgid: 13, msgArgs: [obj.id, obj.req.clientIp, obj.host], msg: 'Started relay session \"' + obj.id + '\" from ' + obj.req.clientIp + ' to ' + obj.host, nodeid: req.query.nodeid, protocol: req.query.p };
parent.parent.DispatchEvent(['*', obj.user._id, obj.meshid, obj.nodeid], obj, event);
// Start the session

2
public/novnc/core/rfb.js
View File

@ -397,7 +397,7 @@ export default class RFB extends EventTargetMixin {
try {
// WebSocket.onopen transitions to the RFB init states
this._sock.open(this._url, ['binary']);
this._sock.open(this._url + '&p=12', ['binary']);
} catch (e) {
if (e.name === 'SyntaxError') {
this._fail("Invalid host or port (" + e + ")");