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MeshCentral/webserver.js

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Initial main commit
2017-08-28 19:27:45 +03:00
/**
* @description Meshcentral web server
* @author Ylian Saint-Hilaire
* @version v0.0.1
*/
"use strict";
/*
class SerialTunnel extends require('stream').Duplex {
constructor(options) { super(options); this.forwardwrite = null; }
updateBuffer(chunk) { this.push(chunk); }
_write(chunk, encoding, callback) { if (this.forwardwrite != null) { this.forwardwrite(chunk); } else { console.err("Failed to fwd _write."); } if (callback) callback(); } // Pass data written to forward
_read(size) { } // Push nothing, anything to read should be pushed from updateBuffer()
}
*/
// Older NodeJS does not support the keyword "class", so we do without using this syntax
// TODO: Validate that it's the same as above and that it works.
function SerialTunnel(options) {
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._read = function(size) { } // Push nothing, anything to read should be pushed from updateBuffer()
return obj;
}
// ExpressJS login sample
// https://github.com/expressjs/express/blob/master/examples/auth/index.js
// Polyfill startsWith/endsWith for older NodeJS
if (!String.prototype.startsWith) { String.prototype.startsWith = function (searchString, position) { position = position || 0; return this.substr(position, searchString.length) === searchString; }; }
if (!String.prototype.endsWith) { String.prototype.endsWith = function (searchString, position) { var subjectString = this.toString(); if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > subjectString.length) { position = subjectString.length; } position -= searchString.length; var lastIndex = subjectString.lastIndexOf(searchString, position); return lastIndex !== -1 && lastIndex === position; }; }
// Construct a HTTP web server object
module.exports.CreateWebServer = function (parent, db, args, secret, certificates) {
var obj = {};
// Modules
obj.fs = require('fs');
obj.net = require('net');
obj.tls = require('tls');
obj.path = require('path');
obj.hash = require('./pass').hash;
obj.bodyParser = require('body-parser');
obj.session = require('express-session');
obj.exphbs = require('express-handlebars');
obj.crypto = require('crypto');
obj.common = require('./common.js');
obj.express = require('express');
obj.meshAgentHandler = require('./meshagent.js');
obj.meshRelayHandler = require('./meshrelay.js')
obj.interceptor = require('./interceptor');
// Variables
obj.parent = parent;
obj.filespath = parent.filespath;
obj.db = db;
obj.app = obj.express();
obj.app.use(require('compression')());
obj.tlsServer = null;
obj.tcpServer;
obj.certificates = certificates;
obj.args = args;
obj.users = {};
obj.meshes = {};
// Perform hash on web certificate and agent certificate
obj.webCertificatHash = parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.web.cert).publicKey, { md: parent.certificateOperations.forge.md.sha256.create(), encoding: 'binary' });
obj.agentCertificatHashHex = parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.agent.cert).publicKey, { md: parent.certificateOperations.forge.md.sha256.create(), encoding: 'hex' });
obj.agentCertificatAsn1 = parent.certificateOperations.forge.asn1.toDer(parent.certificateOperations.forge.pki.certificateToAsn1(parent.certificateOperations.forge.pki.certificateFromPem(parent.certificates.agent.cert))).getBytes();
// Main lists
obj.wsagents = {};
obj.wssessions = {}; // UserId --> Array Of Sessions
obj.wssessions2 = {}; // UserId + SessionId --> Session
obj.wsrelays = {};
// Setup randoms
obj.crypto.randomBytes(32, function (err, buf) { obj.httpAuthRandom = buf; });
obj.crypto.randomBytes(16, function (err, buf) { obj.httpAuthRealm = buf.toString('hex'); });
obj.crypto.randomBytes(32, function (err, buf) { obj.relayRandom = buf; });
if (obj.args.notls) {
// Setup the HTTP server without TLS
obj.expressWs = require('express-ws')(obj.app);
} else {
// Setup the HTTP server with TLS
//var certOperations = require('./certoperations.js').CertificateOperations();
//var webServerCert = certOperations.GetWebServerCertificate('./data', 'SampleServer.org', 'US', 'SampleOrg');
obj.tlsServer = require('https').createServer({ cert: obj.certificates.web.cert, key: obj.certificates.web.key, rejectUnauthorized: true }, obj.app);
obj.expressWs = require('express-ws')(obj.app, obj.tlsServer);
}
// Setup middleware
obj.app.engine('handlebars', obj.exphbs({})); // defaultLayout: 'main'
obj.app.set('view engine', 'handlebars');
obj.app.use(obj.bodyParser.urlencoded({ extended: false }));
obj.app.use(obj.session({
resave: false, // don't save session if unmodified
saveUninitialized: false, // don't create session until something stored
secret: secret // If multiple instances of this server are behind a load-balancer, this secret must be the same for all instances
}));
// Session-persisted message middleware
obj.app.use(function (req, res, next) {
if (req.session != undefined) {
var err = req.session.error;
var msg = req.session.success;
delete req.session.error;
delete req.session.success;
}
res.locals.message = '';
if (err) res.locals.message = '<p class="msg error">' + err + '</p>';
if (msg) res.locals.message = '<p class="msg success">' + msg + '</p>';
next();
});
// Fetch all users from the database, keep this in memory
obj.db.GetAllType('user', function (err, docs) {
var domainUserCount = {};
for (var i in parent.config.domains) { domainUserCount[i] = 0; }
for (var i in docs) { var u = obj.users[docs[i]._id] = docs[i]; domainUserCount[u.domain]++; }
for (var i in parent.config.domains) {
if (domainUserCount[i] == 0) {
if (parent.config.domains[i].newAccounts == 0) { parent.config.domains[i].newAccounts = 2; }
console.log('Server ' + ((i == '') ? '' : (i + ' ')) + 'has no users, next new account will be site administrator.');
}
}
});
// Fetch all meshes from the database, keep this in memory
obj.db.GetAllType('mesh', function (err, docs) { for (var i in docs) { obj.meshes[docs[i]._id] = docs[i]; } });
// Authenticate the user
obj.authenticate = function (name, pass, domain, fn) {
if (!module.parent) console.log('authenticating %s:%s:%s', domain.id, name, pass);
var user = obj.users['user/' + domain.id + '/' + name.toLowerCase()];
// Query the db for the given username
if (!user) return fn(new Error('cannot find user'));
// Apply the same algorithm to the POSTed password, applying the hash against the pass / salt, if there is a match we found the user
if (user.salt == undefined) {
fn(new Error('invalid password'));
} else {
obj.hash(pass, user.salt, function (err, hash) {
if (err) return fn(err);
if (hash == user.hash) return fn(null, user._id);
fn(new Error('invalid password'));
});
}
}
/*
obj.restrict = function (req, res, next) {
console.log('restrict', req.url);
var domain = getDomain(req);
if (req.session.userid) {
next();
} else {
req.session.error = 'Access denied!';
res.redirect(domain.url + 'login');
}
}
*/
// Return the current domain of the request
function getDomain(req) {
var x = req.url.split('/');
if (x.length < 2) return parent.config.domains[''];
if (parent.config.domains[x[1].toLowerCase()]) return parent.config.domains[x[1].toLowerCase()];
return parent.config.domains[''];
}
function handleLogoutRequest(req, res) {
var domain = getDomain(req);
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0' });
// Destroy the user's session to log them out will be re-created next request
if (req.session.userid) {
var user = obj.users[req.session.userid]
obj.parent.DispatchEvent(['*'], obj, { etype: 'user', username: user.name, action: 'logout', msg: 'Account logout', domain: domain.id })
}
req.session.destroy(function () {
res.redirect(domain.url);
});
}
function handleLoginRequest(req, res) {
var domain = getDomain(req);
obj.authenticate(req.body.username, req.body.password, domain, function (err, userid) {
if (userid) {
var user = obj.users[userid];
// Save login time
user.login = Date.now();
obj.db.SetUser(user);
// Regenerate session when signing in to prevent fixation
req.session.regenerate(function () {
// Store the user's primary key in the session store to be retrieved, or in this case the entire user object
// req.session.success = 'Authenticated as ' + user.name + 'click to <a href="/logout">logout</a>. You may now access <a href="/restricted">/restricted</a>.';
delete req.session.loginmode;
req.session.userid = userid;
req.session.domainid = domain.id;
req.session.currentNode = '';
if (req.body.viewmode) {
req.session.viewmode = req.body.viewmode;
}
if (req.body.host) {
obj.db.GetAllType('node', function (err, docs) {
for (var i = 0; i < docs.length; i++) {
if (docs[i].name == req.body.host) {
req.session.currentNode = docs[i]._id;
break;
}
}
console.log("CurrentNode: " + req.session.currentNode);
// This redirect happens after finding node is completed
res.redirect(domain.url);
});
} else {
res.redirect(domain.url);
}
});
obj.parent.DispatchEvent(['*'], obj, { etype: 'user', username: user.name, action: 'login', msg: 'Account login', domain: domain.id })
} else {
delete req.session.loginmode;
req.session.error = '<b style=color:#8C001A>Login failed, check username and password.</b>';
res.redirect(domain.url);
}
});
}
function handleCreateAccountRequest(req, res) {
var domain = getDomain(req);
if (domain.newAccounts == 0) { res.sendStatus(401); return; }
if (!req.body.username || !req.body.email || !req.body.password1 || !req.body.password2 || (req.body.password1 != req.body.password2) || req.body.username == '~') {
req.session.loginmode = 2;
req.session.error = '<b style=color:#8C001A>Unable to create account.</b>';;
res.redirect(domain.url);
} else {
// Check if user exists
if (obj.users['user/' + domain.id + '/' + req.body.username.toLowerCase()]) {
req.session.loginmode = 2;
req.session.error = '<b style=color:#8C001A>Username already exists.</b>';
} else {
var user = { type: 'user', _id: 'user/' + domain.id + '/' + req.body.username.toLowerCase(), name: req.body.username, email: req.body.email, creation: Date.now(), login: Date.now(), domain: domain.id };
var usercount = 0;
for (var i in obj.users) { if (obj.users[i].domain == domain.id) { usercount++; } }
if (usercount == 0) { user.siteadmin = 0xFFFFFFFF; if (domain.newAccounts == 2) { domain.newAccounts = 0; } } // If this is the first user, give the account site admin.
obj.users[user._id] = user;
req.session.userid = user._id;
req.session.domainid = domain.id;
// Create a user, generate a salt and hash the password
obj.hash(req.body.password1, function (err, salt, hash) {
if (err) throw err;
user.salt = salt;
user.hash = hash;
obj.db.SetUser(user);
});
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', username: user.name, account: user, action: 'accountcreate', msg: 'Account created, email is ' + req.body.email, domain: domain.id })
}
res.redirect(domain.url);
}
}
function handleDeleteAccountRequest(req, res) {
var domain = getDomain(req);
// Check if the user is logged and we have all required parameters
if (!req.session || !req.session.userid || !req.body.apassword1 || (req.body.apassword1 != req.body.apassword2) || (req.session.domainid != domain.id)) { res.redirect(domain.url); return; }
var user = obj.users[req.session.userid];
if (!user) return;
// Check if the password is correct
obj.authenticate(user.name, req.body.apassword1, domain, function (err, userid) {
var user = obj.users[userid];
if (user) {
obj.db.Remove(user._id);
delete obj.users[user._id];
req.session.destroy(function () { res.redirect(domain.url); });
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', username: user.name, action: 'accountremove', msg: 'Account removed', domain: domain.id })
} else {
res.redirect(domain.url);
}
});
}
// Handle password changes
function handlePasswordChangeRequest(req, res) {
var domain = getDomain(req);
// Check if the user is logged and we have all required parameters
if (!req.session || !req.session.userid || !req.body.apassword1 || (req.body.apassword1 != req.body.apassword2) || (req.session.domainid != domain.id)) { res.redirect(domain.url); return; }
// Update the password
obj.hash(req.body.apassword1, function (err, salt, hash) {
if (err) throw err;
var user = obj.users[req.session.userid];
user.salt = salt;
user.hash = hash;
user.passchange = Date.now();
obj.db.SetUser(user);
req.session.viewmode = 2;
res.redirect(domain.url);
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', username: user.name, action: 'passchange', msg: 'Account password changed: ' + user.name, domain: domain.id })
});
}
// Indicates that any request to "/" should render "default" or "login" depending on login state
function handleRootRequest(req, res) {
if (!obj.args) { res.sendStatus(500); return; }
var domain = getDomain(req);
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0' });
// Check if we have an incomplete domain name in the path
if (domain.id != '' && req.url.split('/').length == 2) { res.redirect(domain.url); return; }
if (obj.args.nousers == true) {
// If in single user mode, setup things here.
if (req.session && req.session.loginmode) { delete req.session.loginmode; }
req.session.userid = 'user/' + domain.id + '/~';
req.session.domainid = domain.id;
req.session.currentNode = '';
if (obj.users[req.session.userid] == undefined) {
// Create the dummy user ~ with impossible password
obj.users[req.session.userid] = { type: 'user', _id: req.session.userid, name: '~', email: '~', domain: domain.id, siteadmin: 0xFFFFFFFF };
obj.db.SetUser(obj.users[req.session.userid]);
}
} else if (obj.args.user && (!req.session || !req.session.userid) && obj.users['user/' + domain.id + '/' + obj.args.user.toLowerCase()]) {
// If a default user is active, setup the session here.
if (req.session && req.session.loginmode) { delete req.session.loginmode; }
req.session.userid = 'user/' + domain.id + '/' + obj.args.user.toLowerCase();
req.session.domainid = domain.id;
req.session.currentNode = '';
}
// If a user is logged in, serve the default app, otherwise server the login app.
if (req.session && req.session.userid) {
if (req.session.domainid != domain.id) { req.session.destroy(function () { res.redirect(domain.url); }); return; } // Check is the session is for the correct domain
var viewmode = 1;
if (req.session.viewmode) {
viewmode = req.session.viewmode;
delete req.session.viewmode;
}
var currentNode = '';
if (req.session.currentNode) {
currentNode = req.session.currentNode;
delete req.session.currentNode;
}
var user;
var logoutcontrol;
if (!obj.args.nousers) {
user = obj.users[req.session.userid]
logoutcontrol = 'Welcome ' + user.name + '.';
}
var features = 0;
if (obj.args.wanonly == true) { features += 1; } // WAN-only mode
if (obj.args.lanonly == true) { features += 2; } // LAN-only mode
if (obj.args.nousers == true) { features += 4; } // Single user mode
if (domain.userQuota == -1) { features += 8; } // No server files mode
if ((!obj.args.user) && (!obj.args.nousers)) { logoutcontrol += ' <a href=' + domain.url + 'logout?' + Math.random() + ' style=color:white>Logout</a>'; } // If a default user is in use or no user mode, don't display the logout button
res.render(obj.path.join(__dirname, 'views/default'), { viewmode: viewmode, currentNode: currentNode, logoutControl: logoutcontrol, title: domain.title, title2: domain.title2, domainurl: domain.url, domain: domain.id, debuglevel: parent.debugLevel, serverDnsName: obj.certificates.CommonName, serverPublicPort: args.port, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, mpspass: args.mpspass });
} else {
// Send back the login application
res.render(obj.path.join(__dirname, 'views/login'), { loginmode: req.session.loginmode, rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, newAccount: domain.newAccounts, serverDnsName: obj.certificates.CommonName, serverPublicPort: obj.args.port });
}
}
// Get the link to the root certificate if needed
function getRootCertLink() {
// TODO: This is not quite right, we need to check if the HTTPS certificate is issued from MeshCentralRoot, if so, add this download link.
if (obj.args.notls == undefined && obj.certificates.RootName.substring(0, 16) == 'MeshCentralRoot-') { return '<a href=/MeshServerRootCert.cer title="Download the root certificate for this server">Root Certificate</a>'; }
return '';
}
// Renter the terms of service.
function handleTermsRequest(req, res) {
var domain = getDomain(req);
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0' });
if (req.session && req.session.userid) {
if (req.session.domainid != domain.id) { req.session.destroy(function () { res.redirect(domain.url); }); return; } // Check is the session is for the correct domain
var user = obj.users[req.session.userid];
res.render(obj.path.join(__dirname, 'views/terms'), { logoutControl: 'Welcome ' + user.name + '. <a href=' + domain.url + 'logout?' + Math.random() + ' style=color:white>Logout</a>' });
} else {
res.render(obj.path.join(__dirname, 'views/terms'), { title: domain.title, title2: domain.title2 });
}
}
// Returns the server root certificate encoded in base64
function getRootCertBase64() {
var rootcert = obj.certificates.root.cert;
var i = rootcert.indexOf("-----BEGIN CERTIFICATE-----\r\n");
if (i >= 0) { rootcert = rootcert.substring(i + 29); }
i = rootcert.indexOf("-----END CERTIFICATE-----");
if (i >= 0) { rootcert = rootcert.substring(i, 0); }
return new Buffer(rootcert, 'base64').toString('base64');
}
// Returns the mesh server root certificate
function handleRootCertRequest(req, res) {
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=' + certificates.RootName + '.cer' });
res.send(new Buffer(getRootCertBase64(), 'base64'));
}
// Returns an mescript for Intel AMT configuration
function handleMeScriptRequest(req, res) {
if (req.query.type == 1) {
var filename = 'cira_setup.mescript';
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=' + filename });
var serverNameSplit = obj.certificates.CommonName.split('.');
if ((serverNameSplit.length == 4) && (parseInt(serverNameSplit[0]) == serverNameSplit[0]) && (parseInt(serverNameSplit[1]) == serverNameSplit[1]) && (parseInt(serverNameSplit[2]) == serverNameSplit[2]) && (parseInt(serverNameSplit[3]) == serverNameSplit[3])) {
// Server name is an IPv4 address
var filepath = obj.parent.path.join(__dirname, 'public/scripts/cira_setup_script_ip.mescript');
readEntireTextFile(filepath, function (data) {
if (data == null) { res.sendStatus(404); return; }
var scriptFile = JSON.parse(data);
// Change a few things in the script
scriptFile.scriptBlocks[2].vars.CertBin.value = getRootCertBase64(); // Set the root certificate
scriptFile.scriptBlocks[3].vars.IP.value = obj.certificates.CommonName; // Set the server IPv4 address name
scriptFile.scriptBlocks[3].vars.ServerName.value = obj.certificates.CommonName; // Set the server certificate name
scriptFile.scriptBlocks[3].vars.Port.value = obj.args.mpsport; // Set the server MPS port
scriptFile.scriptBlocks[3].vars.username.value = req.query.meshid; // Set the username
scriptFile.scriptBlocks[3].vars.password.value = obj.args.mpspass ? obj.args.mpspass : 'A@xew9rt'; // Set the password
scriptFile.scriptBlocks[4].vars.AccessInfo1.value = obj.certificates.CommonName + ':' + obj.args.mpsport; // Set the primary server name:port to set periodic timer
//scriptFile.scriptBlocks[4].vars.AccessInfo2.value = obj.certificates.CommonName + ':' + obj.args.mpsport; // Set the secondary server name:port to set periodic timer
if (obj.args.ciralocalfqdn != undefined) { scriptFile.scriptBlocks[6].vars.DetectionStrings.value = obj.args.ciralocalfqdn; } // Set the environment detection local FQDN's
// Compile the script
var scriptEngine = require('./amtscript.js').CreateAmtScriptEngine();
var runscript = scriptEngine.script_blocksToScript(scriptFile.blocks, scriptFile.scriptBlocks);
scriptFile.mescript = new Buffer(scriptEngine.script_compile(runscript), 'binary').toString('base64');
// Send the script
res.send(new Buffer(JSON.stringify(scriptFile, null, ' ')));
});
} else {
// Server name is a hostname
var filepath = obj.parent.path.join(__dirname, 'public/scripts/cira_setup_script_dns.mescript');
readEntireTextFile(filepath, function (data) {
if (data == null) { res.sendStatus(404); return; }
var scriptFile = JSON.parse(data);
// Change a few things in the script
scriptFile.scriptBlocks[2].vars.CertBin.value = getRootCertBase64(); // Set the root certificate
scriptFile.scriptBlocks[3].vars.FQDN.value = obj.certificates.CommonName; // Set the server DNS name
scriptFile.scriptBlocks[3].vars.Port.value = obj.args.mpsport; // Set the server MPS port
scriptFile.scriptBlocks[3].vars.username.value = req.query.meshid; // Set the username
scriptFile.scriptBlocks[3].vars.password.value = obj.args.mpspass ? obj.args.mpspass : 'A@xew9rt'; // Set the password
scriptFile.scriptBlocks[4].vars.AccessInfo1.value = obj.certificates.CommonName + ':' + obj.args.mpsport; // Set the primary server name:port to set periodic timer
//scriptFile.scriptBlocks[4].vars.AccessInfo2.value = obj.certificates.CommonName + ':' + obj.args.mpsport; // Set the secondary server name:port to set periodic timer
if (obj.args.ciralocalfqdn != undefined) { scriptFile.scriptBlocks[6].vars.DetectionStrings.value = obj.args.ciralocalfqdn; } // Set the environment detection local FQDN's
// Compile the script
var scriptEngine = require('./amtscript.js').CreateAmtScriptEngine();
var runscript = scriptEngine.script_blocksToScript(scriptFile.blocks, scriptFile.scriptBlocks);
scriptFile.mescript = new Buffer(scriptEngine.script_compile(runscript), 'binary').toString('base64');
// Send the script
res.send(new Buffer(JSON.stringify(scriptFile, null, ' ')));
});
}
}
else if (req.query.type == 2) {
var filename = 'cira_cleanup.mescript';
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=' + filename });
var filepath = obj.parent.path.join(__dirname, 'public/scripts/cira_cleanup.mescript');
readEntireTextFile(filepath, function (data) {
if (data == null) { res.sendStatus(404); return; }
res.send(new Buffer(data));
});
}
}
// Handle user public file downloads
function handleDownloadUserFiles(req, res) {
var domain = getDomain(req), domainname = 'domain', spliturl = decodeURIComponent(req.path).split('/'), filename = '';
if ((spliturl.length < 3) || (obj.common.IsFilenameValid(spliturl[2]) == false) || (domain.userQuota == -1)) { res.sendStatus(404); return; }
if (domain.id != '') { domainname = 'domain-' + domain.id; }
var path = obj.path.join(obj.filespath, domainname + "/user-" + spliturl[2] + "/Public");
for (var i = 3; i < spliturl.length; i++) { if (obj.common.IsFilenameValid(spliturl[i]) == true) { path += '/' + spliturl[i]; filename = spliturl[i]; } else { res.sendStatus(404); return; } }
var stat = null;
try { stat = obj.fs.statSync(path) } catch (e) { }
if ((stat != null) && ((stat.mode & 0x004000) == 0)) {
if (req.query.download == 1) {
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=\"' + filename + '\"' });
try { res.sendFile(obj.path.resolve(__dirname, path)); } catch (e) { res.sendStatus(404); }
} else {
res.render(obj.path.join(__dirname, 'views/download'), { rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, message: "<a href='" + req.path + "?download=1'>" + filename + "</a>, " + stat.size + " byte" + ((stat.size < 2)?'':'s') + "." });
}
} else {
res.render(obj.path.join(__dirname, 'views/download'), { rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, message: "Invalid file link, please check the URL again." });
}
}
// Download a file from the server
function handleDownloadFile(req, res) {
var domain = getDomain(req);
if ((req.query.link == undefined) || (req.session == undefined) || (req.session.userid == undefined) || (domain == null) || (domain.userQuota == -1)) { res.sendStatus(404); return; }
var user = obj.users[req.session.userid];
if (user == undefined) { res.sendStatus(404); return; }
var file = getServerFilePath(user, domain, req.query.link);
if (file == null) { res.sendStatus(404); return; }
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=\"' + file.name + '\"' });
try { res.sendFile(file.fullpath); } catch (e) { res.sendStatus(404); }
}
// Upload a MeshCore.js file to the server
function handleUploadMeshCoreFile(req, res) {
var domain = getDomain(req);
if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid)) { res.sendStatus(401); return; }
var user = obj.users[req.session.userid];
if (user.siteadmin != 0xFFFFFFFF) { res.sendStatus(401); return; } // Check if we have mesh core upload rights (Full admin only)
var multiparty = require('multiparty');
var form = new multiparty.Form();
form.parse(req, function (err, fields, files) {
if ((fields == undefined) || (fields.attrib == undefined) || (fields.attrib.length != 1)) { res.sendStatus(404); return; }
for (var i in files.files) {
var file = files.files[i];
readEntireTextFile(file.path, function (data) {
if (data == null) return;
data = obj.common.IntToStr(0) + data; // Add the 4 bytes encoding type & flags (Set to 0 for raw)
sendMeshAgentCore(user, domain, fields.attrib[0], data); // Upload the core
try { obj.fs.unlinkSync(file.path); } catch (e) { }
});
}
res.send('');
});
}
// Upload a file to the server
function handleUploadFile(req, res) {
var domain = getDomain(req);
if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid) || (domain.userQuota == -1)) { res.sendStatus(401); return; }
var user = obj.users[req.session.userid];
if ((user.siteadmin & 8) == 0) { res.sendStatus(401); return; } // Check if we have file rights
var multiparty = require('multiparty');
var form = new multiparty.Form();
form.parse(req, function (err, fields, files) {
if ((fields == undefined) || (fields.link == undefined) || (fields.link.length != 1)) { res.sendStatus(404); return; }
var xfile = getServerFilePath(user, domain, decodeURIComponent(fields.link[0]));
if (xfile == null) { res.sendStatus(404); return; }
// Get total bytes in the path
var totalsize = readTotalFileSize(xfile.fullpath);
if (totalsize < xfile.quota) { // Check if the quota is not already broken
if (fields.name != undefined) {
// Upload method where all the file data is within the fields.
var names = fields.name[0].split('*'), sizes = fields.size[0].split('*'), types = fields.type[0].split('*'), datas = fields.data[0].split('*');
if ((names.length == sizes.length) && (types.length == datas.length) && (names.length == types.length)) {
for (var i = 0; i < names.length; i++) {
if (obj.common.IsFilenameValid(names[i]) == false) { res.sendStatus(404); return; }
var filedata = new Buffer(datas[i].split(',')[1], 'base64');
if ((totalsize + filedata.length) < xfile.quota) { // Check if quota would not be broken if we add this file
obj.fs.writeFileSync(xfile.fullpath + '/' + names[i], filedata);
}
}
}
} else {
// More typical upload method, the file data is in a multipart mime post.
for (var i in files.files) {
var file = files.files[i], fpath = xfile.fullpath + '/' + file.originalFilename;
if (obj.common.IsFilenameValid(file.originalFilename) && ((totalsize + file.size) < xfile.quota)) { // Check if quota would not be broken if we add this file
obj.fs.rename(file.path, fpath);
} else {
try { obj.fs.unlinkSync(file.path); } catch (e) { }
}
}
}
}
res.send('');
obj.parent.DispatchEvent([user._id], obj, 'updatefiles') // Fire an event causing this user to update this files
});
}
// Subscribe to all events we are allowed to receive
obj.subscribe = function (userid, target) {
var user = obj.users[userid];
var subscriptions = [userid, 'server-global'];
if (user.siteadmin != undefined) {
if (user.siteadmin == 0xFFFFFFFF) subscriptions.push('*');
if ((user.siteadmin & 2) != 0) subscriptions.push('server-users');
}
if (user.links != undefined) {
for (var i in user.links) { subscriptions.push(i); }
}
obj.parent.RemoveAllEventDispatch(target);
obj.parent.AddEventDispatch(subscriptions, target);
return subscriptions;
}
// Handle a web socket relay request
function handleRelayWebSocket(ws, req) {
var node, domain = getDomain(req);
// Check if this is a logged in user
if (!req.session || !req.session.userid) { return; } // Web socket attempt without login, disconnect.
if (req.session.domainid != domain.id) { console.log('ERR: Invalid domain'); return; }
var user = obj.users[req.session.userid];
if (!user) { console.log('ERR: Not a user'); return; }
Debug(1, 'Websocket relay connected from ' + user.name + ' for ' + req.query.host + '.');
// Fetch information about the target
obj.db.Get(req.query.host, function (err, docs) {
if (docs.length == 0) { console.log('ERR: Node not found'); return; }
node = docs[0];
if (!node.intelamt) { console.log('ERR: Not AMT node'); return; }
// Check if this user has permission to manage this computer
var meshlinks = user.links[node.meshid];
if (!meshlinks || !meshlinks.rights) { console.log('ERR: Access denied (1)'); return; }
if ((meshlinks.rights & 8) == 0) { console.log('ERR: Access denied (2)'); return; }
// Check what connectivity is available for this node
var state = parent.connectivityByNode[req.query.host];
var conn = 0;
if (!state || state.connectivity == 0) {
conn = 4; // DEBUG: Allow local connections for now... change this later when we can monitor Intel AMT machines and confirm routing before connections.
//Debug(1, 'ERR: No routing possible (1)');
//try { ws.close(); } catch (e) { }
//return;
} else {
conn = state.connectivity;
}
// If Intel AMT CIRA connection is available, use it
if (((conn & 2) != 0) && (parent.mpsserver.ciraConnections[req.query.host] != undefined)) {
var ciraconn = parent.mpsserver.ciraConnections[req.query.host];
// Compute target port, look at the CIRA port mappings, if non-TLS is allowed, use that, if not use TLS
var port = 16993;
//if (node.intelamt.tls == 0) port = 16992; // DEBUG: Allow TLS flag to set TLS mode within CIRA
if (ciraconn.tag.boundPorts.indexOf(16992) >= 0) port = 16992; // RELEASE: Always use non-TLS mode if available within CIRA
if (req.query.p == 2) port += 2;
// Setup a new CIRA channel
if ((port == 16993) || (port == 16995)) {
// Perform TLS - ( TODO: THIS IS BROKEN on Intel AMT v7 but works on v10, Not sure why )
var ser = new SerialTunnel();
var chnl = parent.mpsserver.SetupCiraChannel(ciraconn, port);
// let's chain up the TLSSocket <-> SerialTunnel <-> CIRA APF (chnl)
// Anything that needs to be forwarded by SerialTunnel will be encapsulated by chnl write
ser.forwardwrite = function (msg) {
// Convert a buffer into a string, "msg = msg.toString('ascii');" does not work
// TLS ---> CIRA
var msg2 = "";
for (var i = 0; i < msg.length; i++) { msg2 += String.fromCharCode(msg[i]); }
chnl.write(msg2);
};
// When APF tunnel return something, update SerialTunnel buffer
chnl.onData = function (ciraconn, data) {
// CIRA ---> TLS
Debug(3, 'Relay TLS CIRA data', data.length);
if (data.length > 0) { try { ser.updateBuffer(Buffer.from(data, 'binary')); } catch (e) { } }
}
// Handke CIRA tunnel state change
chnl.onStateChange = function (ciraconn, state) {
Debug(2, 'Relay TLS CIRA state change', state);
if (state == 0) { try { ws.close(); } catch (e) { } }
}
// TLSSocket to encapsulate TLS communication, which then tunneled via SerialTunnel an then wrapped through CIRA APF
var TLSSocket = require('tls').TLSSocket;
var tlsock = new TLSSocket(ser, { secureProtocol: 'SSLv23_method', rejectUnauthorized: false }); // TLSv1_2_method
tlsock.on('error', function (err) { Debug(1, "CIRA TLS Connection Error ", err); });
tlsock.on('secureConnect', function () { Debug(2, "CIRA Secure TLS Connection"); });
// Decrypted tunnel from TLS communcation to be forwarded to websocket
tlsock.on('data', function (data) {
// AMT/TLS ---> WS
try {
var data2 = "";
for (var i = 0; i < data.length; i++) { data2 += String.fromCharCode(data[i]); }
if (ws.interceptor) { data2 = ws.interceptor.processAmtData(data2); } // Run data thru interceptor
ws.send(data2);
} catch (e) { }
});
// If TLS is on, forward it through TLSSocket
ws.forwardclient = tlsock;
ws.forwardclient.xtls = 1;
} else {
// Without TLS
ws.forwardclient = parent.mpsserver.SetupCiraChannel(ciraconn, port);
ws.forwardclient.xtls = 0;
}
// When data is received from the web socket, forward the data into the associated CIRA cahnnel.
// If the CIRA connection is pending, the CIRA channel has built-in buffering, so we are ok sending anyway.
ws.on('message', function (msg) {
// WS ---> AMT/TLS
// Convert a buffer into a string, "msg = msg.toString('ascii');" does not work
var msg2 = "";
for (var i = 0; i < msg.length; i++) { msg2 += String.fromCharCode(msg[i]); }
if (ws.interceptor) { msg2 = ws.interceptor.processBrowserData(msg2); } // Run data thru interceptor
if (ws.forwardclient.xtls == 1) { ws.forwardclient.write(Buffer.from(msg2, 'binary')); } else { ws.forwardclient.write(msg2); }
});
// If error, do nothing
ws.on('error', function (err) { console.log(err); });
// If the web socket is closed, close the associated TCP connection.
ws.on('close', function (req) {
Debug(1, 'Websocket relay closed.');
if (ws.forwardclient && ws.forwardclient.close) { ws.forwardclient.close(); } // TODO: If TLS is used, we need to close the socket that is wrapped by TLS
});
ws.forwardclient.onStateChange = function (ciraconn, state) {
Debug(2, 'Relay CIRA state change', state);
if (state == 0) { try { ws.close(); } catch (e) { } }
}
ws.forwardclient.onData = function (ciraconn, data) {
Debug(3, 'Relay CIRA data', data.length);
if (ws.interceptor) { data = ws.interceptor.processAmtData(data); } // Run data thru interceptor
if (data.length > 0) { try { ws.send(data); } catch (e) { } } // TODO: Add TLS support
}
ws.forwardclient.onSendOk = function (ciraconn) {
// TODO: Flow control? (Dont' really need it with AMT, but would be nice)
//console.log('onSendOk');
}
// Fetch Intel AMT credentials & Setup interceptor
if (req.query.p == 1) {
Debug(3, 'INTERCEPTOR1', { host: node.host, port: port, user: node.intelamt.user, pass: node.intelamt.pass });
ws.interceptor = obj.interceptor.CreateHttpInterceptor({ host: node.host, port: port, user: node.intelamt.user, pass: node.intelamt.pass });
}
else if (req.query.p == 2) {
Debug(3, 'INTERCEPTOR2', { user: node.intelamt.user, pass: node.intelamt.pass });
ws.interceptor = obj.interceptor.CreateRedirInterceptor({ user: node.intelamt.user, pass: node.intelamt.pass });
}
return;
}
// If Intel AMT direct connection is possible, option a direct socket
if ((conn & 4) != 0) { // We got a new web socket connection, initiate a TCP connection to the target Intel AMT host/port.
Debug(2, 'Opening relay TCP socket connection to ' + req.query.host + '.');
// Compute target port
var port = 16992;
if (node.intelamt.tls > 0) port = 16993; // This is a direct connection, use TLS when possible
if (req.query.p == 2) port += 2;
if (node.intelamt.tls == 0) {
// If this is TCP (without TLS) set a normal TCP socket
ws.forwardclient = new obj.net.Socket();
ws.forwardclient.setEncoding('binary');
ws.forwardclient.xstate = 0;
ws.forwardclient.forwardwsocket = ws;
} else {
// If TLS is going to be used, setup a TLS socket
ws.forwardclient = obj.tls.connect(port, node.host, { secureProtocol: 'TLSv1_method', rejectUnauthorized: false }, function () {
// The TLS connection method is the same as TCP, but located a bit differently.
Debug(2, 'TLS connected to ' + node.host + ':' + port + '.');
if (ws.xpendingdata && ws.xpendingdata.length > 0) {
//console.log('TLS sending pending data: ' + ws.xpendingdata.length);
ws.forwardclient.write(ws.xpendingdata);
delete ws.xpendingdata;
}
ws.forwardclient.xstate = 1;
});
ws.forwardclient.setEncoding('binary');
ws.forwardclient.xstate = 0;
ws.forwardclient.forwardwsocket = ws;
ws.xpendingdata = '';
}
// When data is received from the web socket, forward the data into the associated TCP connection.
// If the TCP connection is pending, buffer up the data until it connects.
ws.on('message', function (msg) {
// Debug(1, 'TCP relay data to ' + node.host + ', ' + msg.length + ' bytes'); // DEBUG
// Convert a buffer into a string, "msg = msg.toString('ascii');" does not work
var msg2 = "";
for (var i = 0; i < msg.length; i++) { msg2 += String.fromCharCode(msg[i]); }
if (ws.interceptor) { msg2 = ws.interceptor.processBrowserData(msg2); } // Run data thru interceptor
if (ws.forwardclient == undefined || ws.forwardclient.xstate == 0) {
// TCP connection is pending, buffer up the data.
if (ws.xpendingdata) { ws.xpendingdata += msg2; } else { ws.xpendingdata = msg2; }
} else {
// Forward data to the associated TCP connection.
ws.forwardclient.write(new Buffer(msg2, "ascii"));
}
});
// If error, do nothing
ws.on('error', function (err) { console.log(err); });
// If the web socket is closed, close the associated TCP connection.
ws.on('close', function (req) {
Debug(1, 'Closing relay web socket connection to ' + ws.upgradeReq.query.host + '.');
if (ws.forwardclient) { try { ws.forwardclient.destroy(); } catch (e) { } }
});
// When we receive data on the TCP connection, forward it back into the web socket connection.
ws.forwardclient.on('data', function (data) {
//Debug(1, 'TCP relay data from ' + node.host + ', ' + data.length + ' bytes.'); // DEBUG
if (ws.interceptor) { data = ws.interceptor.processAmtData(data); } // Run data thru interceptor
try { ws.send(data); } catch (e) { }
});
// If the TCP connection closes, disconnect the associated web socket.
ws.forwardclient.on('close', function () {
Debug(1, 'TCP relay disconnected from ' + node.host + '.');
try { ws.close(); } catch (e) { }
});
// If the TCP connection causes an error, disconnect the associated web socket.
ws.forwardclient.on('error', function (err) {
Debug(1, 'TCP relay error from ' + node.host + ': ' + err.errno);
try { ws.close(); } catch (e) { }
});
// Fetch Intel AMT credentials & Setup interceptor
if (req.query.p == 1) { ws.interceptor = obj.interceptor.CreateHttpInterceptor({ host: node.host, port: port, user: node.intelamt.user, pass: node.intelamt.pass }); }
else if (req.query.p == 2) { ws.interceptor = obj.interceptor.CreateRedirInterceptor({ user: node.intelamt.user, pass: node.intelamt.pass }); }
if (node.intelamt.tls == 0) {
// A TCP connection to Intel AMT just connected, send any pending data and start forwarding.
ws.forwardclient.connect(port, node.host, function () {
Debug(1, 'TCP relay connected to ' + node.host + ':' + port + '.');
if (ws.xpendingdata && ws.xpendingdata.length > 0) {
//console.log('TCP sending pending data: ' + ws.xpendingdata.length);
ws.forwardclient.write(new Buffer(ws.xpendingdata, "ascii"));
delete ws.xpendingdata;
}
ws.forwardclient.xstate = 1;
});
}
return;
}
});
}
// Handle the web socket echo request, just echo back the data sent
function handleEchoWebSocket(ws, req) {
// When data is received from the web socket, echo it back
ws.on('message', function (data) {
var cmd = data.toString('utf8');
if (cmd == 'close') {
try { ws.close(); } catch (e) { console.log(e); }
} else {
try { ws.send(data); } catch (e) { console.log(e); }
}
});
// If error, do nothing
ws.on('error', function (err) { console.log(err); });
// If closed, do nothing
ws.on('close', function (req) { });
}
// Read the folder and all sub-folders and serialize that into json.
function readFilesRec(path) {
var r = {}, dir = obj.fs.readdirSync(path);
for (var i in dir) {
var f = { t: 3, d: 111 };
var stat = obj.fs.statSync(path + '/' + dir[i])
if ((stat.mode & 0x004000) == 0) { f.s = stat.size; f.d = stat.mtime.getTime(); } else { f.t = 2; f.f = readFilesRec(path + '/' + dir[i]); }
r[dir[i]] = f;
}
return r;
}
// Get the total size of all files in a folder and all sub-folders
function readTotalFileSize(path) {
var r = 0, dir = obj.fs.readdirSync(path);
for (var i in dir) {
var stat = obj.fs.statSync(path + '/' + dir[i])
if ((stat.mode & 0x004000) == 0) { r += stat.size; } else { r += readTotalFileSize(path + '/' + dir[i]); }
}
return r;
}
// Delete a folder and all sub items.
function deleteFolderRec(path) {
if (obj.fs.existsSync(path) == false) return;
obj.fs.readdirSync(path).forEach(function (file, index) {
var pathx = path + "/" + file;
if (obj.fs.lstatSync(pathx).isDirectory()) { deleteFolderRec(pathx); } else { obj.fs.unlinkSync(pathx); }
});
obj.fs.rmdirSync(path);
};
// Indicates we want to handle websocket requests on "/control.ashx".
function handleControlRequest(ws, req) {
var domain = getDomain(req);
try {
// Check if the user is logged in
if ((!req.session) || (!req.session.userid) || (req.session.domainid != domain.id)) { try { ws.close(); } catch (e) { } return; }
req.session.ws = ws; // Associate this websocket session with the web session
req.session.ws.userid = req.session.userid;
req.session.ws.domainid = domain.id;
var user = obj.users[req.session.userid];
if (user == undefined || user == null) { try { ws.close(); } catch (e) { } return; }
// Add this web socket session to session list
ws.sessionId = user._id + '/' + ('' + Math.random()).substring(2);
obj.wssessions2[ws.sessionId] = ws;
if (!obj.wssessions[user._id]) { obj.wssessions[user._id] = [ws]; } else { obj.wssessions[user._id].push(ws); }
obj.parent.DispatchEvent(['*'], obj, { action: 'wssessioncount', username: user.name, count: obj.wssessions[user._id].length, nolog: 1, domain: domain.id })
// Handle events
ws.HandleEvent = function (source, event) {
if (!event.domain || event.domain == domain.id) {
try {
if (event == 'close') { req.session.destroy(); ws.close(); }
else if (event == 'resubscribe') { user.subscriptions = obj.subscribe(user._id, ws); }
else if (event == 'updatefiles') { updateUserFiles(user, ws, domain); }
else { ws.send(JSON.stringify({ action: 'event', event: event })); }
} catch (e) { }
}
}
// Subscribe to events
user.subscriptions = obj.subscribe(user._id, ws);
// When data is received from the web socket
ws.on('message', function (msg) {
var user = obj.users[req.session.userid];
var command = JSON.parse(msg.toString('utf8'))
switch (command.action) {
case 'meshes':
{
// Request a list of all meshes this user as rights to
var docs = [];
for (var i in user.links) { if (obj.meshes[i]) { docs.push(obj.meshes[i]); } }
ws.send(JSON.stringify({ action: 'meshes', meshes: docs }));
break;
}
case 'nodes':
{
// Request a list of all meshes this user as rights to
var links = [];
for (var i in user.links) { links.push(i); }
// Request a list of all nodes
obj.db.GetAllTypeNoTypeFieldMeshFiltered(links, domain.id, 'node', function (err, docs) {
var r = {};
for (var i in docs) {
// Add the connection state
var state = parent.connectivityByNode[docs[i]._id];
if (state) {
docs[i].conn = state.connectivity;
docs[i].pwr = state.powerState;
if ((state.connectivity & 1) != 0) { var agent = obj.wsagents[docs[i]._id]; if (agent != undefined) { docs[i].agct = agent.connectTime; } }
if ((state.connectivity & 2) != 0) { var cira = obj.parent.mpsserver.ciraConnections[docs[i]._id]; if (cira != undefined) { docs[i].cict = cira.tag.connectTime; } }
}
// Compress the meshid's
var meshid = docs[i].meshid;
if (!r[meshid]) { r[meshid] = []; }
delete docs[i].meshid;
r[meshid].push(docs[i]);
}
ws.send(JSON.stringify({ action: 'nodes', nodes: r }));
});
break;
}
case 'powertimeline':
{
// Query the database for the power timeline for a given node
// The result is a compacted array: [ startPowerState, startTimeUTC, powerState ] + many[ deltaTime, powerState ]
obj.db.getPowerTimeline(command.nodeid, function (err, docs) {
if (err == null && docs.length > 0) {
var timeline = [], time = null, previousPower;
for (var i in docs) {
var doc = docs[i];
if (time == null) {
// First element
time = doc.time;
if (doc.oldPower) { timeline.push(doc.oldPower); } else { timeline.push(0); }
timeline.push(time);
timeline.push(doc.power);
previousPower = doc.power;
} else {
// Delta element
if ((previousPower != doc.power) && ((doc.time - time) > 60000)) { // To boost speed, any blocks less than a minute get approximated.
// Create a new timeline
timeline.push(doc.time - time);
timeline.push(doc.power);
time = doc.time;
previousPower = doc.power;
} else {
// Extend the previous timeline
if ((timeline.length >= 6) && (timeline[timeline.length - 3] == doc.power)) { // We can merge the block with the previous block
timeline[timeline.length - 4] += (timeline[timeline.length - 2] + (doc.time - time));
timeline.pop();
timeline.pop();
} else { // Extend the last block in the timeline
timeline[timeline.length - 2] += (doc.time - time);
timeline[timeline.length - 1] = doc.power;
}
time = doc.time;
previousPower = doc.power;
}
}
}
ws.send(JSON.stringify({ action: 'powertimeline', nodeid: command.nodeid, timeline: timeline }));
} else {
// No records found, send current state if we have it
var state = obj.parent.connectivityByNode[command.nodeid];
if (state != undefined) { ws.send(JSON.stringify({ action: 'powertimeline', nodeid: command.nodeid, timeline: [state.powerState, Date.now(), state.powerState] })); }
}
});
break;
}
case 'files':
{
// Send the full list of server files to the browser app
if ((user.siteadmin & 8) != 0) { updateUserFiles(user, ws, domain); }
break;
}
case 'fileoperation':
{
// Check permissions
if ((user.siteadmin & 8) != 0) {
// Perform a file operation (Create Folder, Delete Folder, Delete File...)
if ((command.path != undefined) && (typeof command.path == 'object') && command.path.length > 0) {
var rootfolder = command.path[0];
var rootfoldersplit = rootfolder.split('/'), domainx = 'domain';
if (rootfoldersplit[1].length > 0) domainx = 'domain-' + rootfoldersplit[1];
var path = obj.path.join(obj.filespath, domainx + "/" + rootfoldersplit[0] + "-" + rootfoldersplit[2]);
for (var i = 1; i < command.path.length; i++) { if (obj.common.IsFilenameValid(command.path[i]) == false) { path = null; break; } path += ("/" + command.path[i]); }
if (path == null) break;
if ((command.fileop == 'createfolder') && (obj.common.IsFilenameValid(command.newfolder) == true)) { try { obj.fs.mkdirSync(path + "/" + command.newfolder); } catch (e) { } } // Create a new folder
else if (command.fileop == 'delete') { for (var i in command.delfiles) { if (obj.common.IsFilenameValid(command.delfiles[i]) == true) { var fullpath = path + "/" + command.delfiles[i]; try { obj.fs.rmdirSync(fullpath); } catch (e) { try { obj.fs.unlinkSync(fullpath); } catch (e) { } } } } } // Delete
else if ((command.fileop == 'rename') && (obj.common.IsFilenameValid(command.oldname) == true) && (obj.common.IsFilenameValid(command.newname) == true)) { try { obj.fs.renameSync(path + "/" + command.oldname, path + "/" + command.newname); } catch (e) { } } // Rename
obj.parent.DispatchEvent([user._id], obj, 'updatefiles') // Fire an event causing this user to update this files
}
}
break;
}
case 'msg':
{
// Route a message.
// This this command has a nodeid, that is the target.
if (command.nodeid != undefined) {
var splitnodeid = command.nodeid.split('/');
// Check that we are in the same domain and the user has rights over this node.
if ((splitnodeid[0] == 'node') && (splitnodeid[1] == domain.id)) {
// See if the node is connected
var agent = obj.wsagents[command.nodeid];
if (agent != undefined) {
// Check if we have permission to send a message to that node
var rights = user.links[agent.dbMeshKey];
if (rights != undefined || ((rights & 16) != 0)) { // TODO: 16 is console permission, may need more gradular permission checking
command.sessionid = ws.sessionId; // Set the session id, required for responses.
command.rights = rights.rights; // Add user rights flags to the message
delete command.nodeid; // Remove the nodeid since it's implyed.
agent.send(JSON.stringify(command));
}
}
}
}
break;
}
case 'events':
{
// Send the list of events for this session
obj.db.GetEvents(user.subscriptions, domain.id, function (err, docs) { if (err != null) return; ws.send(JSON.stringify({ action: 'events', events: docs })); });
break;
}
case 'clearevents':
{
// Delete all events
if (user.siteadmin != 0xFFFFFFFF) break;
obj.db.RemoveAllEvents(domain.id);
obj.parent.DispatchEvent(['*', 'server-global'], obj, { action: 'clearevents', nolog: 1, domain: domain.id })
break;
}
case 'users':
{
// Request a list of all users
if ((user.siteadmin & 2) == 0) break;
var docs = [];
for (var i in obj.users) { if ((obj.users[i].domain == domain.id) && (obj.users[i].name != '~')) { docs.push(obj.users[i]); } }
ws.send(JSON.stringify({ action: 'users', users: docs }));
break;
}
case 'wssessioncount':
{
// Request a list of all web socket session count
if ((user.siteadmin & 2) == 0) break;
var wssessions = {};
for (var i in obj.wssessions) { if (obj.wssessions[i][0].domainid == domain.id) { wssessions[i] = obj.wssessions[i].length; } }
ws.send(JSON.stringify({ action: 'wssessioncount', wssessions: wssessions }));
break;
}
case 'deleteuser':
{
// Delete a user account
if ((user.siteadmin & 2) == 0) break;
var delusername = command.username, deluserid = command.userid, deluser = obj.users[deluserid];
if ((deluser.siteadmin != undefined) && (deluser.siteadmin > 0) && (user.siteadmin != 0xFFFFFFFF)) break; // Need full admin to remote another administrator
if ((deluserid.split('/').length != 3) || (deluserid.split('/')[1] != domain.id)) break; // Invalid domain, operation only valid for current domain
// Delete all files on the server for this account
try {
var deluserpath = getServerRootFilePath(deluser);
if (deluserpath != null) { deleteFolderRec(deluserpath); }
} catch (e) { }
obj.db.Remove(deluserid);
delete obj.users[deluserid];
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', userid: deluserid, username: delusername, action: 'accountremove', msg: 'Account removed', domain: domain.id })
obj.parent.DispatchEvent([deluserid], obj, 'close');
break;
}
case 'adduser':
{
// Add a new user account
if ((user.siteadmin & 2) == 0) break;
var newusername = command.username, newuserid = 'user/' + domain.id + '/' + command.username.toLowerCase();
if (newusername == '~') break; // This is a reserved user name
if (!obj.users[newuserid]) {
var newuser = { type: 'user', _id: newuserid, name: newusername, email: command.email, creation: Date.now(), domain: domain.id };
obj.users[newuserid] = newuser;
// Create a user, generate a salt and hash the password
obj.hash(command.pass, function (err, salt, hash) {
if (err) throw err;
newuser.salt = salt;
newuser.hash = hash;
obj.db.SetUser(newuser);
var newuser2 = obj.common.Clone(newuser);
if (newuser2.subscriptions) { delete newuser2.subscriptions; }
if (newuser2.salt) { delete newuser2.salt; }
if (newuser2.hash) { delete newuser2.hash; }
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', username: newusername, account: newuser2, action: 'accountcreate', msg: 'Account created, email is ' + command.email, domain: domain.id })
});
}
break;
}
case 'edituser':
{
// Edit a user account, may involve changing email or administrator permissions
if (((user.siteadmin & 2) != 0) || (user.name == command.name)) {
var chguserid = 'user/' + domain.id + '/' + command.name.toLowerCase(), chguser = obj.users[chguserid], change = 0;
if (chguser) {
if (command.email && chguser.email != command.email) { chguser.email = command.email; change = 1; }
if (command.quota != chguser.quota) { chguser.quota = command.quota; if (chguser.quota == undefined) { delete chguser.quota; } change = 1; }
if ((user.siteadmin == 0xFFFFFFFF) && (command.siteadmin != undefined) && (chguser.siteadmin != command.siteadmin)) { chguser.siteadmin = command.siteadmin; change = 1 }
if (change == 1) {
obj.db.Set(chguser);
obj.parent.DispatchEvent([chguser._id], obj, 'resubscribe');
var chguser2 = obj.common.Clone(chguser);
delete chguser2.salt;
delete chguser2.hash;
obj.parent.DispatchEvent(['*', 'server-users', user._id, chguser._id], obj, { etype: 'user', username: user.name, account: chguser2, action: 'accountchange', msg: 'Account changed: ' + command.name, domain: domain.id })
}
}
}
break;
}
case 'serverversion':
{
// Check the server version
if ((user.siteadmin & 16) == 0) break;
obj.parent.getLatestServerVersion(function (currentVersion, latestVersion) { ws.send(JSON.stringify({ action: 'serverversion', current: currentVersion, latest: latestVersion })); });
break;
}
case 'createmesh':
{
// Create mesh
// TODO: Right now, we only create type 1 Agent-less Intel AMT mesh, or type 2 Agent mesh
if ((command.meshtype == 1) || (command.meshtype == 2)) {
// Create a type 1 agent-less Intel AMT mesh.
obj.crypto.randomBytes(32, function (err, buf) {
var meshid = 'mesh/' + domain.id + '/' + buf.toString('hex').toUpperCase();
var links = {}
links[user._id] = { name: user.name, rights: 0xFFFFFFFF };
var mesh = { type: 'mesh', _id: meshid, name: command.meshname, mtype: command.meshtype, desc: command.desc, domain: domain.id, links: links };
obj.db.Set(mesh);
obj.meshes[meshid] = mesh;
obj.parent.AddEventDispatch([meshid], ws);
if (user.links == undefined) user.links = {};
user.links[meshid] = { rights: 0xFFFFFFFF };
user.subscriptions = obj.subscribe(user._id, ws);
obj.db.SetUser(user);
obj.parent.DispatchEvent(['*', meshid, user._id], obj, { etype: 'mesh', username: user.name, meshid: meshid, name: command.meshname, mtype: command.meshtype, desc: command.desc, action: 'createmesh', links: links, msg: 'Mesh created: ' + command.meshname, domain: domain.id })
});
}
break;
}
case 'deletemesh':
{
// Delete a mesh and all computers within it
obj.db.Get(command.meshid, function (err, meshes) {
if (meshes.length != 1) return;
var mesh = meshes[0];
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || mesh.links[user._id].rights != 0xFFFFFFFF) return;
if ((command.meshid.split('/').length != 3) || (command.meshid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Fire the removal event first, because after this, the event will not route
obj.parent.DispatchEvent(['*', command.meshid], obj, { etype: 'mesh', username: user.name, meshid: command.meshid, name: command.meshname, action: 'deletemesh', msg: 'Mesh deleted: ' + command.meshname, domain: domain.id })
// Remove all user links to this mesh
for (var i in meshes) {
var links = meshes[i].links;
for (var j in links) {
var xuser = obj.users[j];
delete xuser.links[meshes[i]._id];
obj.db.Set(xuser);
obj.parent.DispatchEvent([xuser._id], obj, 'resubscribe');
}
}
// Delete all files on the server for this mesh
try {
var meshpath = getServerRootFilePath(mesh);
if (meshpath != null) { deleteFolderRec(meshpath); }
} catch (e) { }
obj.parent.RemoveEventDispatchId(command.meshid); // Remove all subscriptions to this mesh
obj.db.RemoveMesh(command.meshid); // Remove mesh from database
delete obj.meshes[command.meshid]; // Remove mesh from memory
});
break;
}
case 'editmesh':
{
// Change the name or description of a mesh
var mesh = obj.meshes[command.meshid], change = '';
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || ((mesh.links[user._id].rights & 1) == 0)) return;
if ((command.meshid.split('/').length != 3) || (command.meshid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
if (command.meshname && command.meshname != '' && command.meshname != mesh.name) { change = 'Mesh name changed from "' + mesh.name + '" to "' + command.meshname + '"'; mesh.name = command.meshname; }
if (command.desc != undefined && command.desc != mesh.desc) { if (change != '') change += ' and description changed'; else change += 'Mesh "' + mesh.name + '" description changed'; mesh.desc = command.desc; }
if (change != '') { obj.db.Set(mesh); obj.parent.DispatchEvent(['*', mesh._id, user._id], obj, { etype: 'mesh', username: user.name, meshid: mesh._id, name: mesh.name, mtype: mesh.mtype, desc: mesh.desc, action: 'meshchange', links: mesh.links, msg: change, domain: domain.id }) }
}
break;
}
case 'addmeshuser':
{
// Check if the user exists
var newuserid = 'user/' + domain.id + '/' + command.username.toLowerCase(), newuser = obj.users[newuserid];
if (newuser == undefined) {
// TODO: Send error back, user not found.
break;
}
// Get the mesh
var mesh = obj.meshes[command.meshid], change = '';
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || ((mesh.links[user._id].rights & 2) == 0)) return;
if ((command.meshid.split('/').length != 3) || (command.meshid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Add mesh to user
if (newuser.links == undefined) newuser.links = {};
newuser.links[command.meshid] = { rights: command.meshadmin };
obj.db.Set(newuser);
obj.parent.DispatchEvent([newuser._id], obj, 'resubscribe');
// Add a user to the mesh
mesh.links[newuserid] = { name: command.username, rights: command.meshadmin };
obj.db.Set(mesh);
// Notify mesh change
var change = 'Added user ' + command.username + ' to mesh ' + mesh.name;
obj.parent.DispatchEvent(['*', mesh._id, user._id, newuserid], obj, { etype: 'mesh', username: user.name, userid: command.userid, meshid: mesh._id, name: mesh.name, mtype: mesh.mtype, desc: mesh.desc, action: 'meshchange', links: mesh.links, msg: change, domain: domain.id })
}
break;
}
case 'removemeshuser':
{
if ((command.userid.split('/').length != 3) || (command.userid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Check if the user exists
var deluserid = command.userid, deluser = obj.users[deluserid];
if (deluser == undefined) {
// TODO: Send error back, user not found.
break;
}
// Get the mesh
var mesh = obj.meshes[command.meshid];
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || ((mesh.links[user._id].rights & 2) == 0)) return;
// Remove mesh from user
if (deluser.links != undefined && deluser.links[command.meshid] != undefined) {
var delmeshrights = deluser.links[command.meshid].rights;
if ((delmeshrights == 0xFFFFFFFF) && (mesh.links[user._id].rights != 0xFFFFFFFF)) return; // A non-admin can't kick out an admin
delete deluser.links[command.meshid];
obj.db.Set(deluser);
obj.parent.DispatchEvent([deluser._id], obj, 'resubscribe');
}
// Remove user from the mesh
if (mesh.links[command.userid] != undefined) {
delete mesh.links[command.userid];
obj.db.Set(mesh);
}
// Notify mesh change
var change = 'Removed user ' + deluser.name + ' from mesh ' + mesh.name;
obj.parent.DispatchEvent(['*', mesh._id, user._id, command.userid], obj, { etype: 'mesh', username: user.name, userid: command.userid, meshid: mesh._id, name: mesh.name, mtype: mesh.mtype, desc: mesh.desc, action: 'meshchange', links: mesh.links, msg: change, domain: domain.id })
}
break;
}
case 'addamtdevice':
{
if (obj.args.wanonly == true) return; // This is a WAN-only server, local Intel AMT computers can't be added
if ((command.meshid.split('/').length != 3) || (command.meshid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Get the mesh
var mesh = obj.meshes[command.meshid];
if (mesh) {
if (mesh.mtype != 1) return; // This operation is only allowed for mesh type 1, Intel AMT agentless mesh.
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || ((mesh.links[user._id].rights & 4) == 0)) return;
// Create a new nodeid
obj.crypto.randomBytes(32, function (err, buf) {
// create the new node
var nodeid = 'node/' + domain.id + '/' + buf.toString('hex').toUpperCase();
var device = { type: 'node', mtype: 1, _id: nodeid, meshid: command.meshid, name: command.devicename, host: command.hostname, domain: domain.id, intelamt: { user: command.amtusername, pass: command.amtpassword, tls: parseInt(command.amttls) } };
obj.db.Set(device);
// Event the new node
var device2 = obj.common.Clone(device);
delete device2.intelamt.pass; // Remove the Intel AMT password before eventing this.
var change = 'Added device ' + command.devicename + ' to mesh ' + mesh.name;
obj.parent.DispatchEvent(['*', command.meshid], obj, { etype: 'node', username: user.name, action: 'addnode', node: device2, msg: change, domain: domain.id })
});
}
break;
}
case 'scanamtdevice':
{
if (obj.args.wanonly == true) return; // This is a WAN-only server, this type of scanning is not allowed.
// Ask the RMCP scanning to scan a range of IP addresses
if (obj.parent.amtScanner) {
if (obj.parent.amtScanner.performRangeScan(ws.userid, command.range) == false) {
obj.parent.DispatchEvent(['*', ws.userid], obj, { action: 'scanamtdevice', range: command.range, results: null, nolog: 1 });
}
}
break;
}
case 'removedevices':
{
for (var i in command.nodeids) {
var nodeid = command.nodeids[i];
if ((nodeid.split('/').length != 3) || (nodeid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Get the device
obj.db.Get(nodeid, function (err, nodes) {
if (nodes.length != 1) return;
var node = nodes[0];
// Get the mesh for this device
var mesh = obj.meshes[node.meshid];
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || ((mesh.links[user._id].rights & 4) == 0)) return;
// Delete this node including network interface information and events
obj.db.Remove(node._id);
obj.db.Remove('if' + node._id);
// Event node deletion
var change = 'Removed device ' + node.name + ' from mesh ' + mesh.name;
obj.parent.DispatchEvent(['*', node.meshid], obj, { etype: 'node', username: user.name, action: 'removenode', nodeid: node._id, msg: change, domain: domain.id })
// Disconnect all connections if needed
var state = obj.parent.connectivityByNode[command.nodeid];
if ((state != undefined) && (state.connectivity != undefined)) {
if ((state.connectivity & 1) != 0) { obj.wsagents[command.nodeid].close(); } // Disconnect mesh agent
if ((state.connectivity & 2) != 0) { obj.parent.mpsserver.close(obj.parent.mpsserver.ciraConnections[command.nodeid]); } // Disconnect CIRA connection
}
}
});
}
break;
}
case 'wakedevices':
{
// TODO: We can optimize this a lot.
// - We should get a full list of all MAC's to wake first.
// - We should try to only have one agent per subnet (using Gateway MAC) send a wake-on-lan.
for (var i in command.nodeids) {
var nodeid = command.nodeids[i], wakeActions = 0;
if ((nodeid.split('/').length == 3) && (nodeid.split('/')[1] == domain.id)) { // Validate the domain, operation only valid for current domain
// Get the device
obj.db.Get(nodeid, function (err, nodes) {
if (nodes.length != 1) return;
var node = nodes[0];
// Get the mesh for this device
var mesh = obj.meshes[node.meshid];
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] != undefined && ((mesh.links[user._id].rights & 64) != 0)) {
// Get the device interface information
obj.db.Get('if' + node._id, function (err, nodeifs) {
if (nodeifs.length == 1) {
var nodeif = nodeifs[0];
var macs = [];
for (var i in nodeif.netif) { if (nodeif.netif[i].mac) { macs.push(nodeif.netif[i].mac); } }
// Have the server send a wake-on-lan packet (Will not work in WAN-only)
if (obj.parent.meshScanner != null) { obj.parent.meshScanner.wakeOnLan(macs); wakeActions++; }
// Get the list of mesh this user as access to
var targetMeshes = [];
for (var i in user.links) { targetMeshes.push(i); }
// Go thru all the connected agents and send wake-on-lan on all the ones in the target mesh list
for (var i in obj.wsagents) {
var agent = obj.wsagents[i];
if ((targetMeshes.indexOf(agent.dbMeshKey) >= 0) && (agent.authenticated == 2)) {
//console.log('Asking agent ' + agent.dbNodeKey + ' to wake ' + macs.join(','));
agent.send(JSON.stringify({ action: 'wakeonlan', macs: macs }));
wakeActions++;
}
}
}
});
}
}
});
}
// Confirm we may be doing something (TODO)
ws.send(JSON.stringify({ action: 'wakedevices' }));
}
break;
}
case 'getnetworkinfo':
{
// Argument validation
if ((command.nodeid == undefined) || (typeof command.nodeid != 'string') || (command.nodeid.split('/').length != 3) || (command.nodeid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Get the device
obj.db.Get(command.nodeid, function (err, nodes) {
if (nodes.length != 1) { ws.send(JSON.stringify({ action: 'getnetworkinfo', nodeid: command.nodeid, netif: null })); return; }
var node = nodes[0];
// Get the mesh for this device
var mesh = obj.meshes[node.meshid];
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || (mesh.links[user._id].rights == 0)) { ws.send(JSON.stringify({ action: 'getnetworkinfo', nodeid: command.nodeid, netif: null })); return; }
// Get network information about this node
obj.db.Get('if' + command.nodeid, function (err, netinfos) {
if (netinfos.length != 1) { ws.send(JSON.stringify({ action: 'getnetworkinfo', nodeid: command.nodeid, netif: null })); return; }
var netinfo = netinfos[0];
ws.send(JSON.stringify({ action: 'getnetworkinfo', nodeid: command.nodeid, updateTime: netinfo.updateTime, netif: netinfo.netif }));
});
}
});
break;
}
case 'changedevice':
{
// Argument validation
if ((command.nodeid == undefined) || (typeof command.nodeid != 'string') || (command.nodeid.split('/').length != 3) || (command.nodeid.split('/')[1] != domain.id)) return; // Invalid domain, operation only valid for current domain
// Change the device
obj.db.Get(command.nodeid, function (err, nodes) {
if (nodes.length != 1) return;
var node = nodes[0];
// Get the mesh for this device
var mesh = obj.meshes[node.meshid];
if (mesh) {
// Check if this user has rights to do this
if (mesh.links[user._id] == undefined || ((mesh.links[user._id].rights & 4) == 0)) return;
// Ready the node change event
var changes = [], change = 0, event = { etype: 'node', username: user.name, action: 'changenode', nodeid: node._id, domain: domain.id };
event.msg = ": ";
// Look for a change
if (command.icon && (command.icon != node.icon)) { change = 1; node.icon = command.icon; changes.push('icon'); }
if (command.name && (command.name != node.name)) { change = 1; node.name = command.name; changes.push('name'); }
if (command.host && (command.host != node.host)) { change = 1; node.host = command.host; changes.push('host'); }
if (command.desc != undefined && (command.desc != node.desc)) { change = 1; node.desc = command.desc; changes.push('description'); }
if ((command.intelamt != undefined) && (node.intelamt != undefined)) {
if ((command.intelamt.user != undefined) && (command.intelamt.pass != undefined) && ((command.intelamt.user != node.intelamt.user) || (command.intelamt.pass != node.intelamt.pass))) { change = 1; node.intelamt.user = command.intelamt.user; node.intelamt.pass = command.intelamt.pass; changes.push('Intel AMT credentials'); }
if (command.intelamt.tls && (command.intelamt.tls != node.intelamt.tls)) { change = 1; node.intelamt.tls = command.intelamt.tls; changes.push('Intel AMT TLS'); }
}
if (change == 1) {
// Save the node
obj.db.Set(node);
// Event the node change
event.msg = 'Changed device ' + node.name + ' from mesh ' + mesh.name + ': ' + changes.join(', ');
var node2 = obj.common.Clone(node);
if (node2.intelamt && node2.intelamt.pass) delete node2.intelamt.pass; // Remove the Intel AMT password before eventing this.
event.node = node2;
obj.parent.DispatchEvent(['*', node.meshid], obj, event);
}
}
});
break;
}
case 'uploadagentcore':
{
if (user.siteadmin != 0xFFFFFFFF) break;
if (command.path) {
if (command.path == '*') {
// Update the server default core and send a core hash request
// Load default mesh agent core if present, then perform a core update
parent.updateMeshCore(function () { sendMeshAgentCore(user, domain, command.nodeid, '*'); });
} else {
// Send a mesh agent core to the mesh agent
var file = getServerFilePath(user, domain, command.path);
if (file != null) {
readEntireTextFile(file.fullpath, function (data) {
if (data != null) {
data = obj.common.IntToStr(0) + data; // Add the 4 bytes encoding type & flags (Set to 0 for raw)
sendMeshAgentCore(user, domain, command.nodeid, data);
}
})
}
}
} else {
// Clear the mesh agent core on the mesh agent
sendMeshAgentCore(user, domain, command.nodeid, null);
}
break;
}
case 'agentdisconnect':
{
// Force mesh agent disconnection
forceMeshAgentDisconnect(user, domain, command.nodeid);
break;
}
case 'close':
{
// Close the web socket session
if (req.session && req.session.ws && req.session.ws == ws) delete req.session.ws;
try { ws.close(); } catch (e) { }
break;
}
}
});
// If error, do nothing
ws.on('error', function (err) { console.log(err); });
// If the web socket is closed
ws.on('close', function (req) {
obj.parent.RemoveAllEventDispatch(ws);
if (req.session && req.session.ws && req.session.ws == ws) { delete req.session.ws; }
if (obj.wssessions2[ws.sessionId]) { delete obj.wssessions2[ws.sessionId]; }
if (obj.wssessions[ws.userid]) {
var i = obj.wssessions[ws.userid].indexOf(ws);
if (i >= 0) {
obj.wssessions[ws.userid].splice(i, 1);
var user = obj.users[ws.userid];
if (user) { obj.parent.DispatchEvent(['*'], obj, { action: 'wssessioncount', username: user.name, count: obj.wssessions[ws.userid].length, nolog: 1, domain: domain.id }) }
if (obj.wssessions[ws.userid].length == 0) { delete obj.wssessions[ws.userid]; }
}
}
});
// Send user information to web socket, this is the first thing we send
var userinfo = obj.common.Clone(obj.users[req.session.userid]);
delete userinfo.salt;
delete userinfo.hash;
ws.send(JSON.stringify({ action: 'userinfo', userinfo: userinfo }));
// Next, send server information
if (obj.args.notls == true) {
ws.send(JSON.stringify({ action: 'serverinfo', serverinfo: { name: obj.certificates.CommonName, mpsport: obj.args.mpsport, mpspass: obj.args.mpspass, port: obj.args.port, https: false } }));
} else {
ws.send(JSON.stringify({ action: 'serverinfo', serverinfo: { name: obj.certificates.CommonName, mpsport: obj.args.mpsport, mpspass: obj.args.mpspass, redirport: obj.args.redirport, port: obj.args.port, https: true } }));
}
} catch (e) { console.log(e); }
}
// Handle Intel AMT events
// To subscribe, add "http://server:port/amtevents.ashx" to Intel AMT subscriptions.
obj.handleAmtEventRequest = function (req, res) {
var domain = getDomain(req);
try {
if (req.headers['authorization']) {
var authstr = req.headers['authorization'];
if (authstr.substring(0, 7) == "Digest ") {
var auth = obj.common.parseNameValueList(obj.common.quoteSplit(authstr.substring(7)));
if ((req.url === auth.uri) && (obj.httpAuthRealm === auth.realm) && (auth.opaque === obj.crypto.createHmac('SHA256', obj.httpAuthRandom).update(auth.nonce).digest('hex'))) {
// Read the data, we need to get the arg field
var eventData = '';
req.on('data', function (chunk) { eventData += chunk; });
req.on('end', function () {
// Completed event read, let get the argument that must contain the nodeid
var i = eventData.indexOf('<m:arg xmlns:m="http://x.com">');
if (i > 0) {
var nodeid = eventData.substring(i + 30, i + 30 + 64).toUpperCase();
if (nodeid.length == 64) {
var nodekey = 'node/' + domain.id + '/' + nodeid;
// See if this node exists in the database
obj.db.Get(nodekey, function (err, nodes) {
if (nodes.length == 1) {
// Yes, the node exists, compute Intel AMT digest password
var node = nodes[0];
var amtpass = obj.crypto.createHash('sha256').update(auth.username.toLowerCase() + ":" + nodeid + ":" + obj.parent.dbconfig.amtWsEventSecret).digest("base64").substring(0, 12).split("/").join("x").split("\\").join("x");
// Check the MD5 hash
if (auth.response === obj.common.ComputeDigesthash(auth.username, amtpass, auth.realm, "POST", auth.uri, auth.qop, auth.nonce, auth.nc, auth.cnonce)) {
// This is an authenticated Intel AMT event, update the host address
var amthost = req.connection.remoteAddress;
if (amthost.substring(0, 7) === '::ffff:') { amthost = amthost.substring(7); }
if (node.host != amthost) {
// Get the mesh for this device
var mesh = obj.meshes[node.meshid];
if (mesh) {
// Update the database
var oldname = node.host;
node.host = amthost;
obj.db.Set(node);
// Event the node change
var event = { etype: 'node', action: 'changenode', nodeid: node._id, domain: domain.id, msg: 'Intel(R) AMT host change ' + node.name + ' from mesh ' + mesh.name + ': ' + oldname + ' to ' + amthost };
var node2 = obj.common.Clone(node);
if (node2.intelamt && node2.intelamt.pass) delete node2.intelamt.pass; // Remove the Intel AMT password before eventing this.
event.node = node2;
obj.parent.DispatchEvent(['*', node.meshid], obj, event);
}
}
parent.amtEventHandler.handleAmtEvent(eventData, nodeid, amthost);
//res.send('OK');
return;
}
}
});
}
}
});
}
}
}
} catch (e) { console.log(e); }
// Send authentication response
obj.crypto.randomBytes(32, function (err, buf) {
var nonce = buf.toString('hex'), opaque = obj.crypto.createHmac('SHA256', obj.httpAuthRandom).update(nonce).digest('hex');
res.set({ 'WWW-Authenticate': 'Digest realm="' + obj.httpAuthRealm + '", qop="auth,auth-int", nonce="' + nonce + '", opaque="' + opaque + '"' });
res.sendStatus(401);
});
}
// Handle a server backup request
function handleBackupRequest(req, res) {
var domain = getDomain(req);
if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid) || (obj.parent.args.noserverbackup == 1)) { res.sendStatus(401); return; }
var user = obj.users[req.session.userid];
if ((user.siteadmin & 1) == 0) { res.sendStatus(401); return; } // Check if we have server backup rights
// Require modules
var fs = require('fs');
var archive = require('archiver')('zip', { level: 9 }); // Sets the compression method to maximum.
// Good practice to catch this error explicitly
archive.on('error', function (err) { throw err; });
// Set the archive name
res.attachment(domain.title + '-Backup-' + new Date().toLocaleDateString().replace('/', '-').replace('/', '-') + '.zip');
// Pipe archive data to the file
archive.pipe(res);
// Append all of the files for this backup
var backupList = ['config.json', 'meshcentral.db', 'agentserver-cert-private.key', 'agentserver-cert-public.crt', 'mpsserver-cert-private.key', 'mpsserver-cert-public.crt', 'data/root-cert-private.key', 'root-cert-public.crt', 'webserver-cert-private.key', 'webserver-cert-public.crt'];
for (var i in backupList) {
var filename = backupList[i];
var filepath = obj.path.join(obj.parent.datapath, filename);
if (fs.existsSync(filepath)) { archive.file(filepath, { name: filename }); }
}
// Finalize the archive (ie we are done appending files but streams have to finish yet)
archive.finalize();
}
// Handle a server restore request
function handleRestoreRequest(req, res) {
var domain = getDomain(req);
if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid) || (obj.parent.args.noserverbackup == 1)) { res.sendStatus(401); return; }
var user = obj.users[req.session.userid];
if ((user.siteadmin & 4) == 0) { res.sendStatus(401); return; } // Check if we have server restore rights
var multiparty = require('multiparty');
var form = new multiparty.Form();
form.parse(req, function (err, fields, files) {
res.send('Server must be restarted, <a href="' + domain.url + '">click here to login</a>.');
parent.Stop(files.datafile[0].path);
});
}
// Handle a request to download a mesh agent
obj.handleMeshAgentRequest = function (req, res) {
if (req.query.id != undefined) {
// Send a specific mesh agent back
var argentInfo = obj.parent.meshAgentBinaries[req.query.id];
if (argentInfo == undefined) { res.sendStatus(404); return; }
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=' + argentInfo.rname });
res.sendFile(argentInfo.path);
} else if (req.query.script != undefined) {
// Send a specific mesh install script back
var scriptInfo = obj.parent.meshAgentInstallScripts[req.query.script];
if (scriptInfo == undefined) { res.sendStatus(404); return; }
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'text/plain', 'Content-Disposition': 'attachment; filename=' + scriptInfo.rname });
res.sendFile(scriptInfo.path);
} else {
// Send a list of available mesh agents
var response = '<html><head><title>Mesh Agents</title><style>table,th,td { border:1px solid black;border-collapse:collapse;padding:3px; }</style></head><body><table>';
response += '<tr style="background-color:lightgray"><th>ID</th><th>Description</th><th>Link</th><th>Size</th><th>SHA256</th></tr>';
for (var agentid in obj.parent.meshAgentBinaries) {
var agentinfo = obj.parent.meshAgentBinaries[agentid];
response += '<tr><td>' + agentinfo.id + '</td><td>' + agentinfo.desc + '</td>';
response += '<td><a target=_blank href="' + req.originalUrl + '?id=' + agentinfo.id + '">' + agentinfo.rname + '</a></td>';
response += '<td>' + agentinfo.size + '</td><td>' + agentinfo.hash + '</td></tr>';
}
response += '</table></body></html>';
res.send(response);
}
}
// Handle a request to download a mesh settings
obj.handleMeshSettingsRequest = function (req, res) {
var domain = getDomain(req);
//if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid)) { res.sendStatus(401); return; }
// Delete a mesh and all computers within it
obj.db.Get('mesh/' + domain.id + '/' + req.query.id, function (err, meshes) {
if (meshes.length != 1) { res.sendStatus(401); return; }
var mesh = meshes[0];
// Check if this user has rights to do this
//var user = obj.users[req.session.userid];
//if ((user == undefined) || (mesh.links[user._id] == undefined) || ((mesh.links[user._id].rights & 1) == 0)) { res.sendStatus(401); return; }
//if (domain.id != mesh.domain) { res.sendStatus(401); return; }
var xdomain = domain.id;
if (xdomain != '') xdomain += "/";
var meshsettings = "MeshName=" + mesh.name + "\r\nMeshID=0x" + req.query.id.toUpperCase() + "\r\nServerID=" + obj.agentCertificatHashHex.toUpperCase() + "\r\n";
if (obj.args.lanonly != true) { meshsettings += "MeshServer=ws" + (obj.args.notls ? '' : 's') + "://" + certificates.CommonName + ":" + obj.args.port + "/" + xdomain + "agent.ashx\r\n"; } else { meshsettings += "MeshServer=local"; }
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename=meshagent.msh' });
res.send(meshsettings);
});
}
function updateUserFiles(user, ws, domain) {
// Request the list of server files
var files = { action: 'files', filetree: { n : 'Root', f : {} } };
// Add user files
files.filetree.f[user._id] = { t: 1, n: 'My Files', f: {} };
files.filetree.f[user._id].maxbytes = getQuota(user._id, domain);
var usersplit = user._id.split('/'), domainx = 'domain';
if (usersplit[1].length > 0) domainx = 'domain-' + usersplit[1];
// Read all files recursively
try {
files.filetree.f[user._id].f = readFilesRec(obj.path.join(obj.filespath, domainx + "/user-" + usersplit[2]));
} catch (e) {
// Got an error, try to create all the folders and try again...
try { obj.fs.mkdirSync(obj.filespath); } catch (e) { }
try { obj.fs.mkdirSync(obj.path.join(obj.filespath, domainx)); } catch (e) { }
try { obj.fs.mkdirSync(obj.path.join(obj.filespath, domainx + "/user-" + usersplit[2])); } catch (e) { }
try { obj.fs.mkdirSync(obj.path.join(obj.filespath, domainx + "/user-" + usersplit[2] + "/Public")); } catch (e) { }
try { files.filetree.f[user._id].f = readFilesRec(obj.path.join(obj.filespath, domainx + "/user-" + usersplit[2])); } catch (e) { }
}
// Add files for each mesh
for (var i in user.links) {
if ((user.links[i].rights & 32) != 0) { // Check that we have file permissions
var mesh = obj.meshes[i];
if (mesh) {
var meshsplit = mesh._id.split('/');
files.filetree.f[mesh._id] = { t: 1, n: mesh.name, f: {} };
files.filetree.f[mesh._id].maxbytes = getQuota(mesh._id, domain);
// Read all files recursively
try {
files.filetree.f[mesh._id].f = readFilesRec(obj.path.join(__dirname, "files/" + domainx + "/mesh-" + meshsplit[2]));
} catch (e) {
// Got an error, try to create all the folders and try again...
try { obj.fs.mkdirSync(obj.filespath); } catch (e) { }
try { obj.fs.mkdirSync(obj.path.join(obj.filespath, domainx)); } catch (e) { }
try { obj.fs.mkdirSync(obj.path.join(obj.filespath, domainx + "/mesh-" + meshsplit[2])); } catch (e) { }
try { files.filetree.f[mesh._id].f = readFilesRec(obj.path.join(obj.filespath, domainx + "/mesh-" + meshsplit[2])); } catch (e) { }
}
}
}
}
// Respond
ws.send(JSON.stringify(files));
}
// Add HTTP security headers to all responses
obj.app.use(function (req, res, next) {
// Two more headers to take a look at:
// 'Public-Key-Pins': 'pin-sha256="X3pGTSOuJeEVw989IJ/cEtXUEmy52zs1TZQrU06KUKg="; max-age=10'
// 'strict-transport-security': 'max-age=31536000; includeSubDomains'
res.removeHeader("X-Powered-By");
if (obj.args.notls) {
// Default headers if no TLS is used
res.set({ 'Referrer-Policy': 'no-referrer', 'x-frame-options': 'SAMEORIGIN', 'X-XSS-Protection': '1; mode=block', 'X-Content-Type-Options': 'nosniff', 'Content-Security-Policy': "default-src http: ws: data: 'self';script-src http: 'unsafe-inline';style-src http: 'unsafe-inline'" });
} else {
// Default headers if TLS is used
res.set({ 'Referrer-Policy': 'no-referrer', 'x-frame-options': 'SAMEORIGIN', 'X-XSS-Protection': '1; mode=block', 'X-Content-Type-Options': 'nosniff', 'Content-Security-Policy': "default-src https: wss: data: 'self';script-src https: 'unsafe-inline';style-src https: 'unsafe-inline'" });
}
return next();
});
// Setup all HTTP handlers
obj.app.get('/backup.zip', handleBackupRequest);
obj.app.post('/restoreserver.ashx', handleRestoreRequest);
if (parent.multiServer != null) { obj.app.ws('/meshserver.ashx', parent.multiServer.handleServerWebSocket); }
for (var i in parent.config.domains) {
var url = parent.config.domains[i].url;
obj.app.get(url, handleRootRequest);
obj.app.get(url + 'terms', handleTermsRequest);
obj.app.post(url + 'login', handleLoginRequest);
obj.app.get(url + 'logout', handleLogoutRequest);
obj.app.get(url + 'MeshServerRootCert.cer', handleRootCertRequest);
obj.app.get(url + 'mescript.ashx', handleMeScriptRequest);
obj.app.post(url + 'changepassword', handlePasswordChangeRequest);
obj.app.post(url + 'deleteaccount', handleDeleteAccountRequest);
obj.app.post(url + 'createaccount', handleCreateAccountRequest);
obj.app.post(url + 'amtevents.ashx', obj.handleAmtEventRequest);
obj.app.get(url + 'webrelay.ashx', function (req, res) { res.send('Websocket connection expected'); });
obj.app.ws(url + 'webrelay.ashx', handleRelayWebSocket);
obj.app.ws(url + 'control.ashx', handleControlRequest);
obj.app.get(url + 'meshagents', obj.handleMeshAgentRequest);
obj.app.get(url + 'meshsettings', obj.handleMeshSettingsRequest);
obj.app.get(url + 'downloadfile.ashx', handleDownloadFile);
obj.app.post(url + 'uploadfile.ashx', handleUploadFile);
obj.app.post(url + 'uploadmeshcorefile.ashx', handleUploadMeshCoreFile);
obj.app.get(url + 'userfiles/*', handleDownloadUserFiles);
obj.app.ws(url + 'echo.ashx', handleEchoWebSocket);
obj.app.ws(url + 'meshrelay.ashx', function (ws, req) { try { obj.meshRelayHandler.CreateMeshRelay(obj, ws, req); } catch (e) { console.log(e); } });
// Receive mesh agent connections
obj.app.ws(url + 'agent.ashx', function (ws, req) { try { var domain = getDomain(req); obj.meshAgentHandler.CreateMeshAgent(obj, obj.db, ws, req, obj.args, domain); } catch (e) { console.log(e); } });
obj.app.get(url + 'stop', function (req, res) { res.send('Stopping Server, <a href="' + url + '">click here to login</a>.'); setTimeout(function () { parent.Stop(); }, 500); });
/*
// DEBUG ONLY: Returns a mesh relay key
obj.app.get(url + 'getkey', function (req, res) {
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'text/plain' });
require('./meshrelay.js').CreateMeshRelayKey(obj, function (x) { res.send(x); });
});
*/
/*
// Test
obj.app.get(url + 'test.json', function (req, res) {
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'text/plain' });
res.send('{ "glossary": { "title": "example glossary", "bob" : 5 } }');
});
*/
// Indicates to ExpressJS that the public folder should be used to serve static files.
obj.app.use(url, obj.express.static(obj.path.join(__dirname, 'public')));
}
// Find a free port starting with the specified one and going up.
function CheckListenPort(port, func) {
var s = obj.net.createServer(function (socket) { });
obj.tcpServer = s.listen(port, function () { s.close(function () { if (func) { func(port); } }); }).on('error', function (err) {
if (args.exactports) { console.error('ERROR: MeshCentral HTTPS web server port ' + port + ' not available.'); process.exit(); }
else { if (port < 65535) { CheckListenPort(port + 1, func); } else { if (func) { func(0); } } }
});
}
// Start the ExpressJS web server
function StartWebServer(port) {
if (port == 0 || port == 65535) return;
obj.args.port = port;
if (obj.tlsServer != null) {
if (obj.args.lanonly == true) {
obj.tcpServer = obj.tlsServer.listen(port, function () { console.log('MeshCentral HTTPS web server running on port ' + port + '.'); });
} else {
obj.tcpServer = obj.tlsServer.listen(port, function () { console.log('MeshCentral HTTPS web server running on ' + certificates.CommonName + ':' + port + '.'); });
}
} else {
obj.tcpServer = obj.app.listen(port, function () { console.log('MeshCentral HTTP web server running on port ' + port + '.'); });
}
}
// Force mesh agent disconnection
function forceMeshAgentDisconnect(user, domain, nodeid) {
if ((nodeid == undefined) || (nodeid == null)) return;
var splitnode = nodeid.split('/');
if ((splitnode.length != 3) || (splitnode[1] != domain.id)) return; // Check that nodeid is valid and part of our domain
var agent = obj.wsagents[nodeid];
if (agent == undefined) return;
// Check we have agent rights
var rights = user.links[agent.dbMeshKey].rights;
if ((rights != undefined) && ((rights & 16) != 0) && (user.siteadmin == 0xFFFFFFFF)) { agent.close(); }
}
// Send the core module to the mesh agent
function sendMeshAgentCore(user, domain, nodeid, core) {
if ((nodeid == undefined) || (nodeid == null)) return;
var splitnode = nodeid.split('/');
if ((splitnode.length != 3) || (splitnode[1] != domain.id)) return; // Check that nodeid is valid and part of our domain
var agent = obj.wsagents[nodeid];
if (agent == undefined) return;
// Check we have agent rights
var rights = user.links[agent.dbMeshKey].rights;
if ((rights != undefined) && ((rights & 16) != 0) && (user.siteadmin == 0xFFFFFFFF)) {
if ((core == null) || (core == undefined)) {
// Clear the mesh agent core
agent.agentCoreCheck = 1000; // Tell the agent object we are not using a custom core.
agent.send(obj.common.ShortToStr(10) + obj.common.ShortToStr(0));
} else if (core == '*') {
agent.agentCoreCheck = 0; // Tell the agent object we are using a default code
// Reset the core to the server default
agent.send(obj.common.ShortToStr(11) + obj.common.ShortToStr(0)); // Command 11, ask for mesh core hash.
} else {
agent.agentCoreCheck = 1000; // Tell the agent object we are not using a custom core.
// Perform a SHA256 hash on the core module
var buf = new Buffer(core, 'ascii');
var hash = obj.crypto.createHash('sha256').update(buf).digest(), hash2 = "";
for (var i = 0; i < hash.length; i++) { hash2 += String.fromCharCode(hash[i]); }
// Send the code module to the agent
agent.send(obj.common.ShortToStr(10) + obj.common.ShortToStr(0) + hash2 + core); // TODO: Add core encoding short
}
}
}
// Return the maximum number of bytes allowed in the user account "My Files".
function getQuota(objid, domain) {
if ((objid == undefined) || (objid == null)) return 0;
if (objid.startsWith('user/')) {
var user = obj.users[objid];
if (user == undefined) return 0;
if ((user.quota != undefined) && (typeof user.quota == 'number')) { return user.quota; }
if ((domain != undefined) && (domain.userQuota != undefined) && (typeof domain.userQuota == 'number')) { return domain.userQuota; }
return 1048576; // By default, the server will have a 1 meg limit on user accounts
} else if (objid.startsWith('mesh/')) {
var mesh = obj.meshes[objid];
if (mesh == undefined) return 0;
if ((mesh.quota != undefined) && (typeof mesh.quota == 'number')) { return mesh.quota; }
if ((domain != undefined) && (domain.meshQuota != undefined) && (typeof domain.meshQuota == 'number')) { return domain.meshQuota; }
return 1048576; // By default, the server will have a 1 meg limit on mesh accounts
}
return 0;
}
// Get the server path of a user or mesh object
function getServerRootFilePath(obj) {
if ((typeof obj != 'object') || (obj.domain == undefined) || (obj._id == undefined)) return null;
var domainname = 'domain', splitname = obj._id.split('/');
if (splitname.length != 3) return null;
if (obj.domain !== '') domainname = 'domain-' + obj.domain;
return obj.path.join(obj.filespath, domainname + "/" + splitname[0] + "-" + splitname[2]);
}
// Take a "user/domain/userid/path/file" format and return the actual server disk file path if access is allowed
function getServerFilePath(user, domain, path) {
var splitpath = path.split('/'), serverpath = obj.path.join(obj.filespath, 'domain'), filename = '';
if ((splitpath.length < 3) || (splitpath[0] != 'user' && splitpath[0] != 'mesh') || (splitpath[1] != domain.id)) return null; // Basic validation
var objid = splitpath[0] + '/' + splitpath[1] + '/' + splitpath[2];
if (splitpath[0] == 'user' && (objid != user._id)) return null; // User validation, only self allowed
if (splitpath[0] == 'mesh') { var link = user.links[objid]; if ((link == undefined) || (link.rights == undefined) || ((link.rights & 32) == 0)) { return null; } } // Check mesh server file rights
if (splitpath[1] != '') { serverpath += '-' + splitpath[1]; } // Add the domain if needed
serverpath += ('/' + splitpath[0] + '-' + splitpath[2]);
for (var i = 3; i < splitpath.length; i++) { if (obj.common.IsFilenameValid(splitpath[i]) == true) { serverpath += '/' + splitpath[i]; filename = splitpath[i]; } else { return null; } } // Check that each folder is correct
var fullpath = obj.path.resolve(obj.filespath, serverpath), quota = 0;
return { fullpath: fullpath, path: serverpath, name: filename, quota: getQuota(objid, domain) };
}
// Read entire file and return it in callback function
function readEntireTextFile(filepath, func) {
var called = false;
try {
obj.fs.open(filepath, 'r', function (err, fd) {
obj.fs.fstat(fd, function (err, stats) {
var bufferSize = stats.size, chunkSize = 512, buffer = new Buffer(bufferSize), bytesRead = 0;
while (bytesRead < bufferSize) {
if ((bytesRead + chunkSize) > bufferSize) { chunkSize = (bufferSize - bytesRead); }
obj.fs.readSync(fd, buffer, bytesRead, chunkSize, bytesRead);
bytesRead += chunkSize;
}
obj.fs.close(fd);
called = true;
func(buffer.toString('utf8', 0, bufferSize));
});
});
} catch (e) { if (called == false) { func(null); } }
}
// Debug
function Debug(lvl) {
if (lvl > obj.parent.debugLevel) return;
if (arguments.length == 2) { console.log(arguments[1]); }
else if (arguments.length == 3) { console.log(arguments[1], arguments[2]); }
else if (arguments.length == 4) { console.log(arguments[1], arguments[2], arguments[3]); }
else if (arguments.length == 5) { console.log(arguments[1], arguments[2], arguments[3], arguments[4]); }
else if (arguments.length == 6) { console.log(arguments[1], arguments[2], arguments[3], arguments[4], arguments[5]); }
else if (arguments.length == 7) { console.log(arguments[1], arguments[2], arguments[3], arguments[4], arguments[5], arguments[6]); }
}
// Start server on a free port
CheckListenPort(obj.args.port, StartWebServer);
return obj;
}
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