mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-12-26 07:05:52 -05:00
548 lines
32 KiB
JavaScript
548 lines
32 KiB
JavaScript
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var http = require('http');
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var childProcess = require('child_process');
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var meshCoreObj = { action: 'coreinfo', value: "MeshCore Recovery", caps: 14 }; // Capability bitmask: 1 = Desktop, 2 = Terminal, 4 = Files, 8 = Console, 16 = JavaScript
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var nextTunnelIndex = 1;
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var tunnels = {};
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var fs = require('fs');
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//attachDebugger({ webport: 9994, wait: 1 }).then(function (p) { console.log('Debug on port: ' + p); });
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function sendConsoleText(msg) {
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require('MeshAgent').SendCommand({ action: 'msg', type: 'console', value: msg });
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}
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// Return p number of spaces
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function addPad(p, ret) { var r = ''; for (var i = 0; i < p; i++) { r += ret; } return r; }
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setInterval(function () { sendConsoleText('Timer!'); }, 2000);
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var path =
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{
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join: function () {
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var x = [];
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for (var i in arguments) {
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var w = arguments[i];
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if (w != null) {
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while (w.endsWith('/') || w.endsWith('\\')) { w = w.substring(0, w.length - 1); }
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if (i != 0) { while (w.startsWith('/') || w.startsWith('\\')) { w = w.substring(1); } }
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x.push(w);
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}
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}
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if (x.length == 0) return '/';
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return x.join('/');
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}
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};
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// Convert an object to string with all functions
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function objToString(x, p, pad, ret) {
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if (ret == undefined) ret = '';
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if (p == undefined) p = 0;
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if (x == null) { return '[null]'; }
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if (p > 8) { return '[...]'; }
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if (x == undefined) { return '[undefined]'; }
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if (typeof x == 'string') { if (p == 0) return x; return '"' + x + '"'; }
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if (typeof x == 'buffer') { return '[buffer]'; }
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if (typeof x != 'object') { return x; }
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var r = '{' + (ret ? '\r\n' : ' ');
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for (var i in x) { if (i != '_ObjectID') { r += (addPad(p + 2, pad) + i + ': ' + objToString(x[i], p + 2, pad, ret) + (ret ? '\r\n' : ' ')); } }
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return r + addPad(p, pad) + '}';
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}
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// Split a string taking into account the quoats. Used for command line parsing
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function splitArgs(str) {
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var myArray = [], myRegexp = /[^\s"]+|"([^"]*)"/gi;
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do { var match = myRegexp.exec(str); if (match != null) { myArray.push(match[1] ? match[1] : match[0]); } } while (match != null);
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return myArray;
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}
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// Parse arguments string array into an object
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function parseArgs(argv) {
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var results = { '_': [] }, current = null;
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for (var i = 1, len = argv.length; i < len; i++) {
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var x = argv[i];
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if (x.length > 2 && x[0] == '-' && x[1] == '-') {
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if (current != null) { results[current] = true; }
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current = x.substring(2);
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} else {
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if (current != null) { results[current] = toNumberIfNumber(x); current = null; } else { results['_'].push(toNumberIfNumber(x)); }
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}
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}
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if (current != null) { results[current] = true; }
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return results;
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}
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// Get server target url with a custom path
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function getServerTargetUrl(path) {
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var x = require('MeshAgent').ServerUrl;
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//sendConsoleText("mesh.ServerUrl: " + mesh.ServerUrl);
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if (x == null) { return null; }
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if (path == null) { path = ''; }
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x = http.parseUri(x);
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if (x == null) return null;
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return x.protocol + '//' + x.host + ':' + x.port + '/' + path;
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}
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// Get server url. If the url starts with "*/..." change it, it not use the url as is.
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function getServerTargetUrlEx(url) {
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if (url.substring(0, 2) == '*/') { return getServerTargetUrl(url.substring(2)); }
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return url;
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}
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require('MeshAgent').on('Connected', function () {
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require('os').name().then(function (v) {
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//sendConsoleText("Mesh Agent Receovery Console, OS: " + v);
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require('MeshAgent').SendCommand(meshCoreObj);
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});
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});
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// Tunnel callback operations
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function onTunnelUpgrade(response, s, head) {
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this.s = s;
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s.httprequest = this;
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s.end = onTunnelClosed;
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s.tunnel = this;
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//sendConsoleText('onTunnelUpgrade');
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if (this.tcpport != null) {
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// This is a TCP relay connection, pause now and try to connect to the target.
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s.pause();
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s.data = onTcpRelayServerTunnelData;
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var connectionOptions = { port: parseInt(this.tcpport) };
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if (this.tcpaddr != null) { connectionOptions.host = this.tcpaddr; } else { connectionOptions.host = '127.0.0.1'; }
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s.tcprelay = net.createConnection(connectionOptions, onTcpRelayTargetTunnelConnect);
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s.tcprelay.peerindex = this.index;
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} else {
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// This is a normal connect for KVM/Terminal/Files
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s.data = onTunnelData;
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}
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}
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// Called when receiving control data on websocket
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function onTunnelControlData(data, ws)
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{
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var obj;
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if (ws == null) { ws = this; }
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if (typeof data == 'string') { try { obj = JSON.parse(data); } catch (e) { sendConsoleText('Invalid control JSON: ' + data); return; } }
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else if (typeof data == 'object') { obj = data; } else { return; }
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//sendConsoleText('onTunnelControlData(' + ws.httprequest.protocol + '): ' + JSON.stringify(data));
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//console.log('onTunnelControlData: ' + JSON.stringify(data));
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if (obj.action)
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{
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switch (obj.action)
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{
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case 'lock': {
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// Lock the current user out of the desktop
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try
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{
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if (process.platform == 'win32')
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{
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MeshServerLog("Locking remote user out of desktop", ws.httprequest);
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var child = require('child_process');
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child.execFile(process.env['windir'] + '\\system32\\cmd.exe', ['/c', 'RunDll32.exe user32.dll,LockWorkStation'], { type: 1 });
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}
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} catch (e) { }
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break;
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}
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default:
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// Unknown action, ignore it.
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break;
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}
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return;
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}
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switch (obj.type)
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{
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case 'options': {
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// These are additional connection options passed in the control channel.
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//sendConsoleText('options: ' + JSON.stringify(obj));
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delete obj.type;
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ws.httprequest.xoptions = obj;
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// Set additional user consent options if present
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if ((obj != null) && (typeof obj.consent == 'number')) { ws.httprequest.consent |= obj.consent; }
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break;
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}
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case 'close': {
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// We received the close on the websocket
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//sendConsoleText('Tunnel #' + ws.tunnel.index + ' WebSocket control close');
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try { ws.close(); } catch (e) { }
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break;
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}
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case 'termsize': {
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// Indicates a change in terminal size
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if (process.platform == 'win32')
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{
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if (ws.httprequest._dispatcher == null) return;
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if (ws.httprequest._dispatcher.invoke) { ws.httprequest._dispatcher.invoke('resizeTerminal', [obj.cols, obj.rows]); }
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}
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else
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{
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if (ws.httprequest.process == null || ws.httprequest.process.pty == 0) return;
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if (ws.httprequest.process.tcsetsize) { ws.httprequest.process.tcsetsize(obj.rows, obj.cols); }
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}
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break;
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}
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}
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}
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require('MeshAgent').AddCommandHandler(function (data) {
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if (typeof data == 'object')
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{
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// If this is a console command, parse it and call the console handler
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switch (data.action) {
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case 'msg':
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{
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switch (data.type) {
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case 'console': { // Process a console command
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if (data.value && data.sessionid) {
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var args = splitArgs(data.value);
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processConsoleCommand(args[0].toLowerCase(), parseArgs(args), data.rights, data.sessionid);
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}
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break;
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}
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case 'tunnel':
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{
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if (data.value != null) { // Process a new tunnel connection request
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// Create a new tunnel object
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var xurl = getServerTargetUrlEx(data.value);
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if (xurl != null) {
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var woptions = http.parseUri(xurl);
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woptions.rejectUnauthorized = 0;
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//sendConsoleText(JSON.stringify(woptions));
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var tunnel = http.request(woptions);
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tunnel.on('upgrade', function (response, s, head) {
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this.s = s;
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s.httprequest = this;
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s.tunnel = this;
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s.on('end', function () {
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if (tunnels[this.httprequest.index] == null) return; // Stop duplicate calls.
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// If there is a upload or download active on this connection, close the file
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if (this.httprequest.uploadFile) { fs.closeSync(this.httprequest.uploadFile); this.httprequest.uploadFile = undefined; }
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if (this.httprequest.downloadFile) { fs.closeSync(this.httprequest.downloadFile); this.httprequest.downloadFile = undefined; }
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//sendConsoleText("Tunnel #" + this.httprequest.index + " closed.", this.httprequest.sessionid);
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delete tunnels[this.httprequest.index];
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// Clean up WebSocket
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this.removeAllListeners('data');
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});
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s.on('data', function (data) {
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// If this is upload data, save it to file
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if (this.httprequest.uploadFile) {
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try { fs.writeSync(this.httprequest.uploadFile, data); } catch (e) { this.write(Buffer.from(JSON.stringify({ action: 'uploaderror' }))); return; } // Write to the file, if there is a problem, error out.
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this.write(Buffer.from(JSON.stringify({ action: 'uploadack', reqid: this.httprequest.uploadFileid }))); // Ask for more data
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return;
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}
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if (this.httprequest.state == 0) {
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// Check if this is a relay connection
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if ((data == 'c') || (data == 'cr')) { this.httprequest.state = 1; sendConsoleText("Tunnel #" + this.httprequest.index + " now active", this.httprequest.sessionid); }
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} else {
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// Handle tunnel data
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if (this.httprequest.protocol == 0)
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{
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if ((data.length > 3) && (data[0] == '{')) { onTunnelControlData(data, this); return; }
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// Take a look at the protocol
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this.httprequest.protocol = parseInt(data);
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if (typeof this.httprequest.protocol != 'number') { this.httprequest.protocol = 0; }
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if ((this.httprequest.protocol == 1) || (this.httprequest.protocol == 6) || (this.httprequest.protocol == 8) || (this.httprequest.protocol == 9))
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{
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// Remote terminal using native pipes
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if (process.platform == "win32")
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{
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var cols = 80, rows = 25;
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if (this.httprequest.xoptions)
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{
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if (this.httprequest.xoptions.rows) { rows = this.httprequest.xoptions.rows; }
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if (this.httprequest.xoptions.cols) { cols = this.httprequest.xoptions.cols; }
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}
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// Admin Terminal
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if (require('win-virtual-terminal').supported)
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{
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// ConPTY PseudoTerminal
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// this.httprequest._term = require('win-virtual-terminal')[this.httprequest.protocol == 6 ? 'StartPowerShell' : 'Start'](80, 25);
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// The above line is commented out, because there is a bug with ClosePseudoConsole() API, so this is the workaround
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this.httprequest._dispatcher = require('win-dispatcher').dispatch({ modules: [{ name: 'win-virtual-terminal', script: getJSModule('win-virtual-terminal') }], launch: { module: 'win-virtual-terminal', method: 'Start', args: [cols, rows] } });
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this.httprequest._dispatcher.ws = this;
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this.httprequest._dispatcher.on('connection', function (c)
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{
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this.ws._term = c;
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c.pipe(this.ws, { dataTypeSkip: 1 });
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this.ws.pipe(c, { dataTypeSkip: 1 });
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});
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}
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else
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{
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// Legacy Terminal
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this.httprequest._term = require('win-terminal').Start(80, 25);
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this.httprequest._term.pipe(this, { dataTypeSkip: 1 });
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this.pipe(this.httprequest._term, { dataTypeSkip: 1, end: false });
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this.prependListener('end', function () { this.httprequest._term.end(function () { sendConsoleText('Terminal was closed'); }); });
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}
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}
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else
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{
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var env = { HISTCONTROL: 'ignoreboth' };
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if (this.httprequest.xoptions)
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{
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if (this.httprequest.xoptions.rows) { env.LINES = ('' + this.httprequest.xoptions.rows); }
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if (this.httprequest.xoptions.cols) { env.COLUMNS = ('' + this.httprequest.xoptions.cols); }
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}
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var options = { type: childProcess.SpawnTypes.TERM, env: env };
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if(require('fs').existsSync('/bin/bash'))
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{
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this.httprequest.process = childProcess.execFile('/bin/bash', ['bash'], options); // Start bash
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}
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else
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{
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this.httprequest.process = childProcess.execFile('/bin/sh', ['sh'], options); // Start sh
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}
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// Spaces at the beginning of lines are needed to hide commands from the command history
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if (process.platform == 'linux') { this.httprequest.process.stdin.write(' alias ls=\'ls --color=auto\';clear\n'); }
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this.httprequest.process.tunnel = this;
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this.httprequest.process.on('exit', function (ecode, sig) { this.tunnel.end(); });
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this.httprequest.process.stderr.on('data', function (chunk) { this.parent.tunnel.write(chunk); });
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this.httprequest.process.stdout.pipe(this, { dataTypeSkip: 1 }); // 0 = Binary, 1 = Text.
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this.pipe(this.httprequest.process.stdin, { dataTypeSkip: 1, end: false }); // 0 = Binary, 1 = Text.
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this.prependListener('end', function () { this.httprequest.process.kill(); });
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}
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}
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}
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else if (this.httprequest.protocol == 5) {
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// Process files commands
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var cmd = null;
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try { cmd = JSON.parse(data); } catch (e) { };
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if (cmd == null) { return; }
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if ((cmd.ctrlChannel == '102938') || ((cmd.type == 'offer') && (cmd.sdp != null))) { return; } // If this is control data, handle it now.
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if (cmd.action == undefined) { return; }
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console.log('action: ', cmd.action);
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//sendConsoleText('CMD: ' + JSON.stringify(cmd));
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if ((cmd.path != null) && (process.platform != 'win32') && (cmd.path[0] != '/')) { cmd.path = '/' + cmd.path; } // Add '/' to paths on non-windows
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//console.log(objToString(cmd, 0, ' '));
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switch (cmd.action) {
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case 'ls':
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// Send the folder content to the browser
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var response = getDirectoryInfo(cmd.path);
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if (cmd.reqid != undefined) { response.reqid = cmd.reqid; }
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this.write(Buffer.from(JSON.stringify(response)));
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break;
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case 'mkdir': {
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// Create a new empty folder
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fs.mkdirSync(cmd.path);
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break;
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}
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case 'rm': {
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// Delete, possibly recursive delete
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for (var i in cmd.delfiles) {
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try { deleteFolderRecursive(path.join(cmd.path, cmd.delfiles[i]), cmd.rec); } catch (e) { }
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}
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break;
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}
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case 'rename': {
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// Rename a file or folder
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var oldfullpath = path.join(cmd.path, cmd.oldname);
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var newfullpath = path.join(cmd.path, cmd.newname);
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try { fs.renameSync(oldfullpath, newfullpath); } catch (e) { console.log(e); }
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break;
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}
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case 'upload': {
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// Upload a file, browser to agent
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if (this.httprequest.uploadFile != undefined) { fs.closeSync(this.httprequest.uploadFile); this.httprequest.uploadFile = undefined; }
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if (cmd.path == undefined) break;
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var filepath = cmd.name ? path.join(cmd.path, cmd.name) : cmd.path;
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try { this.httprequest.uploadFile = fs.openSync(filepath, 'wbN'); } catch (e) { this.write(Buffer.from(JSON.stringify({ action: 'uploaderror', reqid: cmd.reqid }))); break; }
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this.httprequest.uploadFileid = cmd.reqid;
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if (this.httprequest.uploadFile) { this.write(Buffer.from(JSON.stringify({ action: 'uploadstart', reqid: this.httprequest.uploadFileid }))); }
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break;
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}
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case 'copy': {
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// Copy a bunch of files from scpath to dspath
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for (var i in cmd.names) {
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var sc = path.join(cmd.scpath, cmd.names[i]), ds = path.join(cmd.dspath, cmd.names[i]);
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if (sc != ds) { try { fs.copyFileSync(sc, ds); } catch (e) { } }
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}
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break;
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}
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case 'move': {
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// Move a bunch of files from scpath to dspath
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for (var i in cmd.names) {
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var sc = path.join(cmd.scpath, cmd.names[i]), ds = path.join(cmd.dspath, cmd.names[i]);
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if (sc != ds) { try { fs.copyFileSync(sc, ds); fs.unlinkSync(sc); } catch (e) { } }
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}
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break;
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}
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}
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}
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}
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});
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});
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tunnel.onerror = function (e) { sendConsoleText("ERROR: " + JSON.stringify(e)); }
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tunnel.sessionid = data.sessionid;
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tunnel.rights = data.rights;
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tunnel.state = 0;
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tunnel.url = xurl;
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tunnel.protocol = 0;
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tunnel.tcpaddr = data.tcpaddr;
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tunnel.tcpport = data.tcpport;
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tunnel.end();
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// Put the tunnel in the tunnels list
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var index = nextTunnelIndex++;
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tunnel.index = index;
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tunnels[index] = tunnel;
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//sendConsoleText('New tunnel connection #' + index + ': ' + tunnel.url + ', rights: ' + tunnel.rights, data.sessionid);
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}
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}
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break;
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}
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default:
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// Unknown action, ignore it.
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break;
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}
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break;
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}
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default:
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// Unknown action, ignore it.
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break;
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}
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}
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});
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function processConsoleCommand(cmd, args, rights, sessionid) {
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try {
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var response = null;
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switch (cmd) {
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case 'help':
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response = "Available commands are: osinfo, dbkeys, dbget, dbset, dbcompact, netinfo.";
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break;
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case 'osinfo': { // Return the operating system information
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var i = 1;
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if (args['_'].length > 0) { i = parseInt(args['_'][0]); if (i > 8) { i = 8; } response = 'Calling ' + i + ' times.'; }
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for (var j = 0; j < i; j++)
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{
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var pr = require('os').name();
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pr.sessionid = sessionid;
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pr.then(function (v)
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{
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sendConsoleText("OS: " + v + (process.platform == 'win32' ? (require('win-virtual-terminal').supported ? ' [ConPTY: YES]' : ' [ConPTY: NO]') : ''), this.sessionid);
|
|
});
|
|
}
|
|
break;
|
|
}
|
|
case 'dbkeys': { // Return all data store keys
|
|
response = JSON.stringify(db.Keys);
|
|
break;
|
|
}
|
|
case 'dbget': { // Return the data store value for a given key
|
|
if (db == null) { response = "Database not accessible."; break; }
|
|
if (args['_'].length != 1) {
|
|
response = "Proper usage: dbget (key)"; // Display the value for a given database key
|
|
} else {
|
|
response = db.Get(args['_'][0]);
|
|
}
|
|
break;
|
|
}
|
|
case 'dbset': { // Set a data store key and value pair
|
|
if (db == null) { response = "Database not accessible."; break; }
|
|
if (args['_'].length != 2) {
|
|
response = "Proper usage: dbset (key) (value)"; // Set a database key
|
|
} else {
|
|
var r = db.Put(args['_'][0], args['_'][1]);
|
|
response = "Key set: " + r;
|
|
}
|
|
break;
|
|
}
|
|
case 'dbcompact': { // Compact the data store
|
|
if (db == null) { response = "Database not accessible."; break; }
|
|
var r = db.Compact();
|
|
response = "Database compacted: " + r;
|
|
break;
|
|
}
|
|
case 'tunnels': { // Show the list of current tunnels
|
|
response = '';
|
|
for (var i in tunnels) { response += "Tunnel #" + i + ", " + tunnels[i].url + '\r\n'; }
|
|
if (response == '') { response = "No websocket sessions."; }
|
|
break;
|
|
}
|
|
case 'netinfo': { // Show network interface information
|
|
//response = objToString(mesh.NetInfo, 0, ' ');
|
|
var interfaces = require('os').networkInterfaces();
|
|
response = objToString(interfaces, 0, ' ', true);
|
|
break;
|
|
}
|
|
default: { // This is an unknown command, return an error message
|
|
response = 'Unknown command \"' + cmd + '\", type \"help\" for list of available commands.';
|
|
break;
|
|
}
|
|
}
|
|
} catch (e) { response = "Command returned an exception error: " + e; console.log(e); }
|
|
if (response != null) { sendConsoleText(response, sessionid); }
|
|
}
|
|
|
|
// Get a formated response for a given directory path
|
|
function getDirectoryInfo(reqpath) {
|
|
var response = { path: reqpath, dir: [] };
|
|
if (((reqpath == undefined) || (reqpath == '')) && (process.platform == 'win32')) {
|
|
// List all the drives in the root, or the root itself
|
|
var results = null;
|
|
try { results = fs.readDrivesSync(); } catch (e) { } // TODO: Anyway to get drive total size and free space? Could draw a progress bar.
|
|
if (results != null) {
|
|
for (var i = 0; i < results.length; ++i) {
|
|
var drive = { n: results[i].name, t: 1 };
|
|
if (results[i].type == 'REMOVABLE') { drive.dt = 'removable'; } // TODO: See if this is USB/CDROM or something else, we can draw icons.
|
|
response.dir.push(drive);
|
|
}
|
|
}
|
|
} else {
|
|
// List all the files and folders in this path
|
|
if (reqpath == '') { reqpath = '/'; }
|
|
var results = null, xpath = path.join(reqpath, '*');
|
|
//if (process.platform == "win32") { xpath = xpath.split('/').join('\\'); }
|
|
try { results = fs.readdirSync(xpath); } catch (e) { }
|
|
if (results != null) {
|
|
for (var i = 0; i < results.length; ++i) {
|
|
if ((results[i] != '.') && (results[i] != '..')) {
|
|
var stat = null, p = path.join(reqpath, results[i]);
|
|
//if (process.platform == "win32") { p = p.split('/').join('\\'); }
|
|
try { stat = fs.statSync(p); } catch (e) { } // TODO: Get file size/date
|
|
if ((stat != null) && (stat != undefined)) {
|
|
if (stat.isDirectory() == true) {
|
|
response.dir.push({ n: results[i], t: 2, d: stat.mtime });
|
|
} else {
|
|
response.dir.push({ n: results[i], t: 3, s: stat.size, d: stat.mtime });
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return response;
|
|
}
|
|
// Delete a directory with a files and directories within it
|
|
function deleteFolderRecursive(path, rec) {
|
|
if (fs.existsSync(path)) {
|
|
if (rec == true) {
|
|
fs.readdirSync(path.join(path, '*')).forEach(function (file, index) {
|
|
var curPath = path.join(path, file);
|
|
if (fs.statSync(curPath).isDirectory()) { // recurse
|
|
deleteFolderRecursive(curPath, true);
|
|
} else { // delete file
|
|
fs.unlinkSync(curPath);
|
|
}
|
|
});
|
|
}
|
|
fs.unlinkSync(path);
|
|
}
|
|
};
|