mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2025-03-09 15:40:18 +00:00
466 lines
25 KiB
JavaScript
466 lines
25 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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{
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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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var path =
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{
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join: function ()
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{
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var x = [];
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for (var i in arguments)
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{
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var w = arguments[i];
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if (w != null)
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{
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while (w.endsWith('/') || w.endsWith('\\')) { w = w.substring(0, w.length - 1); }
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if (i != 0)
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{
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while (w.startsWith('/') || w.startsWith('\\')) { w = w.substring(1); }
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}
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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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{
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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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{
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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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{
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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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{
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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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{
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require('os').name().then(function (v)
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{
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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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require('MeshAgent').AddCommandHandler(function (data)
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{
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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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{
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case 'msg':
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{
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switch (data.type)
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{
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case 'console': { // Process a console command
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if (data.value && data.sessionid)
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{
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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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{
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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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{
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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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{
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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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{
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try { fs.writeSync(this.httprequest.uploadFile, data); } catch (e) { this.write(new Buffer(JSON.stringify({ action: 'uploaderror' }))); return; } // Write to the file, if there is a problem, error out.
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this.write(new Buffer(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') { 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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// 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)
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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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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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else
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{
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this.httprequest.process = childProcess.execFile("/bin/sh", ["sh"], { type: childProcess.SpawnTypes.TERM });
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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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this.on('end', function () {
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if (process.platform == "win32")
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{
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// Unpipe the web socket
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this.unpipe(this.httprequest._term);
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this.httprequest._term.unpipe(this);
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// Clean up
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this.httprequest._term.end();
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this.httprequest._term = null;
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}
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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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{
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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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{
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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(new Buffer(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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{
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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(new Buffer(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(new Buffer(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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{
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try
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{
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var response = null;
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switch (cmd)
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{
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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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var pr = require('os').name();
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pr.sessionid = sessionid;
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pr.then(function (v) { sendConsoleText("OS: " + v, this.sessionid); });
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}
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break;
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}
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case 'dbkeys': { // Return all data store keys
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response = JSON.stringify(db.Keys);
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break;
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}
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case 'dbget': { // Return the data store value for a given key
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if (db == null) { response = 'Database not accessible.'; break; }
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if (args['_'].length != 1) {
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response = 'Proper usage: dbget (key)'; // Display the value for a given database key
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} else {
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response = db.Get(args['_'][0]);
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}
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break;
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}
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case 'dbset': { // Set a data store key and value pair
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if (db == null) { response = 'Database not accessible.'; break; }
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if (args['_'].length != 2) {
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response = 'Proper usage: dbset (key) (value)'; // Set a database key
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} else {
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var r = db.Put(args['_'][0], args['_'][1]);
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response = 'Key set: ' + r;
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}
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break;
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}
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case 'dbcompact': { // Compact the data store
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if (db == null) { response = 'Database not accessible.'; break; }
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var r = db.Compact();
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response = 'Database compacted: ' + r;
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break;
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}
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case 'tunnels': { // Show the list of current tunnels
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response = '';
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for (var i in tunnels) { response += 'Tunnel #' + i + ', ' + tunnels[i].url + '\r\n'; }
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if (response == '') { response = 'No websocket sessions.'; }
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break;
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}
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case 'netinfo': { // Show network interface information
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//response = objToString(mesh.NetInfo, 0, ' ');
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var interfaces = require('os').networkInterfaces();
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response = objToString(interfaces, 0, ' ', true);
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break;
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}
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default: { // This is an unknown command, return an error message
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response = 'Unknown command \"' + cmd + '\", type \"help\" for list of available commands.';
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break;
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}
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}
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} catch (e) { response = 'Command returned an exception error: ' + e; console.log(e); }
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if (response != null) { sendConsoleText(response, sessionid); }
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}
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// Get a formated response for a given directory path
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function getDirectoryInfo(reqpath)
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{
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var response = { path: reqpath, dir: [] };
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if (((reqpath == undefined) || (reqpath == '')) && (process.platform == 'win32')) {
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// List all the drives in the root, or the root itself
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var results = null;
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try { results = fs.readDrivesSync(); } catch (e) { } // TODO: Anyway to get drive total size and free space? Could draw a progress bar.
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if (results != null) {
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for (var i = 0; i < results.length; ++i) {
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var drive = { n: results[i].name, t: 1 };
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if (results[i].type == 'REMOVABLE') { drive.dt = 'removable'; } // TODO: See if this is USB/CDROM or something else, we can draw icons.
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response.dir.push(drive);
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}
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}
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} else {
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// List all the files and folders in this path
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if (reqpath == '') { reqpath = '/'; }
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var results = null, xpath = path.join(reqpath, '*');
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//if (process.platform == "win32") { xpath = xpath.split('/').join('\\'); }
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try { results = fs.readdirSync(xpath); } catch (e) { }
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if (results != null) {
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for (var i = 0; i < results.length; ++i) {
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if ((results[i] != '.') && (results[i] != '..')) {
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var stat = null, p = path.join(reqpath, results[i]);
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//if (process.platform == "win32") { p = p.split('/').join('\\'); }
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try { stat = fs.statSync(p); } catch (e) { } // TODO: Get file size/date
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if ((stat != null) && (stat != undefined)) {
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if (stat.isDirectory() == true) {
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response.dir.push({ n: results[i], t: 2, d: stat.mtime });
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} else {
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response.dir.push({ n: results[i], t: 3, s: stat.size, d: stat.mtime });
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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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return response;
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}
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// Delete a directory with a files and directories within it
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function deleteFolderRecursive(path, rec) {
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|
if (fs.existsSync(path)) {
|
|
if (rec == true) {
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|
fs.readdirSync(path.join(path, '*')).forEach(function (file, index) {
|
|
var curPath = path.join(path, file);
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|
if (fs.statSync(curPath).isDirectory()) { // recurse
|
|
deleteFolderRecursive(curPath, true);
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|
} else { // delete file
|
|
fs.unlinkSync(curPath);
|
|
}
|
|
});
|
|
}
|
|
fs.unlinkSync(path);
|
|
}
|
|
};
|