/** * @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.constants = require('constants'); 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.meshUserHandler = require('./meshuser.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 = {}; obj.userAllowedIp = args.userallowedip; // List of allowed IP addresses for users // Mesh Rights const MESHRIGHT_EDITMESH = 1; const MESHRIGHT_MANAGEUSERS = 2; const MESHRIGHT_MANAGECOMPUTERS = 4; const MESHRIGHT_REMOTECONTROL = 8; const MESHRIGHT_AGENTCONSOLE = 16; const MESHRIGHT_SERVERFILES = 32; const MESHRIGHT_WAKEDEVICE = 64; // Site rights const SITERIGHT_SERVERBACKUP = 1; const SITERIGHT_MANAGEUSERS = 2; const SITERIGHT_SERVERRESTORE = 4; const SITERIGHT_FILEACCESS = 8; const SITERIGHT_SERVERUPDATE = 16; // Perform hash on web certificate and agent certificate obj.webCertificateHash = parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.web.cert).publicKey, { md: parent.certificateOperations.forge.md.sha384.create(), encoding: 'binary' }); obj.webCertificateHashBase64 = new Buffer(parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.web.cert).publicKey, { md: parent.certificateOperations.forge.md.sha384.create(), encoding: 'binary' }), 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'); obj.agentCertificateHashHex = parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.agent.cert).publicKey, { md: parent.certificateOperations.forge.md.sha384.create(), encoding: 'hex' }); obj.agentCertificateHashBase64 = new Buffer(parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.agent.cert).publicKey, { md: parent.certificateOperations.forge.md.sha384.create(), encoding: 'binary' }), 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'); obj.agentCertificateAsn1 = 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 + SessionRnd" --> Session (Note that the SessionId is the UserId + / + SessionRnd) obj.wsPeerSessions = {}; // ServerId --> Array Of "UserId + SessionRnd" obj.wsPeerSessions2 = {}; // "UserId + SessionRnd" --> ServerId obj.wsPeerSessions3 = {}; // ServerId --> UserId --> [ SessionId ] obj.sessionsCount = {}; // Merged session counters, used when doing server peering. UserId --> SessionCount obj.wsrelays = {}; // Id -> Relay obj.wsPeerRelays = {}; // Id -> { ServerId, Time } // Setup randoms obj.crypto.randomBytes(48, function (err, buf) { obj.httpAuthRandom = buf; }); obj.crypto.randomBytes(16, function (err, buf) { obj.httpAuthRealm = buf.toString('hex'); }); obj.crypto.randomBytes(48, function (err, buf) { obj.relayRandom = buf; }); function EscapeHtml(x) { if (typeof x == "string") return x.replace(/&/g, '&').replace(/>/g, '>').replace(//g, '>').replace(/').replace(/\n/g, '').replace(/\t/g, '  '); if (typeof x == "boolean") return x; if (typeof x == "number") return x; } if (obj.args.notls || obj.args.tlsoffload) { // 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, ca: obj.certificates.calist, 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 != null) { var err = req.session.error; var msg = req.session.success; var passhint = req.session.passhint; delete req.session.error; delete req.session.success; delete req.session.passhint; } res.locals.message = ''; if (err) res.locals.message = '

' + err + '

'; if (msg) res.locals.message = '

' + msg + '

'; if (passhint) res.locals.passhint = EscapeHtml(passhint); 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 == null) { 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'), null, user.passhint); }); } } /* 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'); } } */ // Check if the source IP address is allowed for a given allowed list, return false if not function checkUserIpAddressEx(req, res, allowedIpList) { if (allowedIpList == null) { return true; } try { var ip = null, type = 0; if (req.connection) { ip = req.connection.remoteAddress; type = 1; } // HTTP(S) request else if (req._socket) { ip = req._socket.remoteAddress; type = 2; } // WebSocket request if (ip.startsWith('::ffff:')) { ip = ip.substring(7); } // Fix IPv4 IP's encoded in IPv6 form if ((ip != null) && (allowedIpList.indexOf(ip) >= 0)) { return true; } if (type == 1) { res.sendStatus(401); } else if (type == 2) { try { req.close(); } catch (e) { } } } catch (e) { console.log(e); } return false; } // Check if the source IP address is allowed, return domain if allowed function checkUserIpAddress(req, res, rootonly) { if (obj.userAllowedIp != null) { if (typeof obj.userAllowedIp == 'string') { if (obj.userAllowedIp == "") { obj.userAllowedIp = null; return true; } else { obj.userAllowedIp = obj.userAllowedIp.split(','); } } if (checkUserIpAddressEx(req, res, obj.userAllowedIp) == false) return null; } if (rootonly == true) return; var domain; if (req.url) { domain = getDomain(req); } else { domain = getDomain(res); } if (domain.userallowedip == null) return domain; if (checkUserIpAddressEx(req, res, domain.userallowedip) == false) return null; return domain; } // 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 = checkUserIpAddress(req, res); if (domain == null) return; 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 = checkUserIpAddress(req, res); if (domain == null) return; obj.authenticate(req.body.username, req.body.password, domain, function (err, userid, passhint) { 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 logout. You may now access /restricted.'; delete req.session.loginmode; req.session.userid = userid; req.session.domainid = domain.id; req.session.currentNode = ''; if (req.session.passhint) { delete req.session.passhint; } 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 = 'Login failed, check username and password.'; if ((passhint != null) && (passhint.length > 0)) { req.session.passhint = passhint; } else { if (req.session.passhint) { delete req.session.passhint; } } res.redirect(domain.url); } }); } function handleCreateAccountRequest(req, res) { var domain = checkUserIpAddress(req, res); if (domain == null) return; 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 = 'Unable to create account.';; res.redirect(domain.url); } else { // Check if there is domain.newAccountToken, check if supplied token is valid if ((domain.newaccountspass != null) && (domain.newaccountspass != '') && (req.body.anewaccountpass != domain.newaccountspass)) { req.session.loginmode = 2; req.session.error = 'Invalid account creation token.'; res.redirect(domain.url); return; } // Check if user exists if (obj.users['user/' + domain.id + '/' + req.body.username.toLowerCase()]) { req.session.loginmode = 2; req.session.error = 'Username already exists.'; } else { var hint = req.body.apasswordhint; if (hint.length > 250) hint = hint.substring(0, 250); 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, passhint: hint }; 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 = checkUserIpAddress(req, res); if (domain == null) return; // 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 = checkUserIpAddress(req, res); if (domain == null) return; // 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 hint = req.body.apasswordhint; if (hint.length > 250) hint = hint.substring(0, 250); var user = obj.users[req.session.userid]; user.salt = salt; user.hash = hash; user.passchange = Date.now(); user.passhint = req.body.apasswordhint; 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) { var domain = checkUserIpAddress(req, res); if (domain == null) return; 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] == null) { // 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 != true) { 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.tlsoffload == true) { features += 16; } // No mutual-auth CIRA if ((!obj.args.user) && (obj.args.nousers != true)) { logoutcontrol += ' Logout'; } // 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, serverRedirPort: args.redirport, serverPublicPort: args.port, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, mpspass: args.mpspass, webcerthash: obj.webCertificateHashBase64 }); } 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, newAccountPass: (((domain.newaccountspass == null) || (domain.newaccountspass == ''))?0:1), 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 == null && obj.certificates.RootName.substring(0, 16) == 'MeshCentralRoot-') { return 'Root Certificate'; } return ''; } // Renter the terms of service. function handleTermsRequest(req, res) { var domain = checkUserIpAddress(req, res); if (domain == null) return; 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 + '. Logout' }); } 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) { if (checkUserIpAddress(req, res, true) == false) { 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=' + certificates.RootName + '.cer' }); res.send(new Buffer(getRootCertBase64(), 'base64')); } // Returns an mescript for Intel AMT configuration function handleMeScriptRequest(req, res) { if (checkUserIpAddress(req, res, true) == false) { return; } 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 != null) { 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 != null) { 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 = checkUserIpAddress(req, res); if (domain == null) return; var 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: "" + filename + ", " + 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 = checkUserIpAddress(req, res); if (domain == null) return; if ((req.query.link == null) || (req.session == null) || (req.session.userid == null) || (domain == null) || (domain.userQuota == -1)) { res.sendStatus(404); return; } var user = obj.users[req.session.userid]; if (user == null) { 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 = checkUserIpAddress(req, res); if (domain == null) return; 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 == null) || (fields.attrib == null) || (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) obj.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 = checkUserIpAddress(req, res); if (domain == null) return; 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 == null) || (fields.link == null) || (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 != null) { // 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 != null) { if (user.siteadmin == 0xFFFFFFFF) subscriptions.push('*'); if ((user.siteadmin & 2) != 0) subscriptions.push('server-users'); } if (user.links != null) { 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 domain = checkUserIpAddress(ws, req); if (domain == null) return; // Check if this is a logged in user var user, peering = true; if (req.query.auth == null) { // Use ExpressJS session 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; } user = obj.users[req.session.userid]; } else { // Get the session from the cookie if (obj.parent.multiServer == null) { return; } var session = obj.decodeCookie(req.query.auth); if (session == null) { console.log('ERR: Invalid cookie'); return; } if (session.domainid != domain.id) { console.log('ERR: Invalid domain'); return; } user = obj.users[session.userid]; peering = false; // Don't allow the connection to jump again to a different server } if (!user) { console.log('ERR: Not a user'); return; } Debug(1, 'Websocket relay connected from ' + user.name + ' for ' + req.query.host + '.'); ws.pause(); // Hold this socket until we are ready. ws._socket.setKeepAlive(true, 240000); // Set TCP keep alive // 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; } var 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) || ((meshlinks.rights & MESHRIGHT_REMOTECONTROL) == 0)) { console.log('ERR: Access denied (2)'); return; } // Check what connectivity is available for this node var state = parent.GetConnectivityState(req.query.host); var conn = 0; if (!state || state.connectivity == 0) { Debug(1, 'ERR: No routing possible (1)'); try { ws.close(); } catch (e) { } return; } else { conn = state.connectivity; } // Check what server needs to handle this connection if ((obj.parent.multiServer != null) && (peering == true)) { var server = obj.parent.GetRoutingServerId(req.query.host, 2); // Check for Intel CIRA connection if (server != null) { if (server.serverid != obj.parent.serverId) { // Do local Intel CIRA routing using a different server Debug(1, 'Route Intel AMT CIRA connection to peer server: ' + server.serverid); obj.parent.multiServer.createPeerRelay(ws, req, server.serverid, user); return; } } else { server = obj.parent.GetRoutingServerId(req.query.host, 4); // Check for local Intel AMT connection if ((server != null) && (server.serverid != obj.parent.serverId)) { // Do local Intel AMT routing using a different server Debug(1, 'Route Intel AMT direct connection to peer server: ' + server.serverid); obj.parent.multiServer.createPeerRelay(ws, req, server.serverid, user); return; } } } // If Intel AMT CIRA connection is available, use it if (((conn & 2) != 0) && (parent.mpsserver.ciraConnections[req.query.host] != null)) { 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) { // TLS ---> CIRA chnl.write(msg.toString('binary')); }; // 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 tlsoptions = { secureProtocol: 'TLSv1_method', ciphers: 'ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AES:!aNULL:!MD5:!DSS', secureOptions: obj.constants.SSL_OP_NO_SSLv2 | obj.constants.SSL_OP_NO_SSLv3 | obj.constants.SSL_OP_NO_COMPRESSION | obj.constants.SSL_OP_CIPHER_SERVER_PREFERENCE, rejectUnauthorized: false, cert: obj.certificates.console.cert, key: obj.certificates.console.key }; var tlsock = new TLSSocket(ser, tlsoptions); // 'TLSv1_2_method' or 'SSLv23_method' tlsock.on('error', function (err) { Debug(1, "CIRA TLS Connection Error ", err); }); tlsock.on('secureConnect', function () { Debug(2, "CIRA Secure TLS Connection"); ws.resume(); }); // Decrypted tunnel from TLS communcation to be forwarded to websocket tlsock.on('data', function (data) { // AMT/TLS ---> WS try { data = data.toString('binary'); if (ws.interceptor) { data = ws.interceptor.processAmtData(data); } // Run data thru interceptor ws.send(data); } 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; ws.resume(); } // 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 msg = msg.toString('binary'); if (ws.interceptor) { msg = ws.interceptor.processBrowserData(msg); } // Run data thru interceptor if (ws.forwardclient.xtls == 1) { ws.forwardclient.write(Buffer.from(msg, 'binary')); } else { ws.forwardclient.write(msg); } }); // 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(4, '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 + '.'); // When data is received from the web socket, forward the data into the associated TCP connection. ws.on('message', function (msg) { Debug(1, 'TCP relay data to ' + node.host + ', ' + msg.length + ' bytes'); // DEBUG msg = msg.toString('binary'); if (ws.interceptor) { msg = ws.interceptor.processBrowserData(msg); } // Run data thru interceptor ws.forwardclient.write(new Buffer(msg, 'binary')); // Forward data to the associated TCP connection. }); // 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) { } } }); // 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; ws.resume(); } else { // If TLS is going to be used, setup a TLS socket var tlsoptions = { secureProtocol: 'TLSv1_method', ciphers: 'ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AES:!aNULL:!MD5:!DSS', secureOptions: obj.constants.SSL_OP_NO_SSLv2 | obj.constants.SSL_OP_NO_SSLv3 | obj.constants.SSL_OP_NO_COMPRESSION | obj.constants.SSL_OP_CIPHER_SERVER_PREFERENCE, rejectUnauthorized: false, cert: obj.certificates.console.cert, key: obj.certificates.console.key }; ws.forwardclient = obj.tls.connect(port, node.host, tlsoptions, function () { // The TLS connection method is the same as TCP, but located a bit differently. Debug(2, 'TLS connected to ' + node.host + ':' + port + '.'); ws.forwardclient.xstate = 1; ws.resume(); }); ws.forwardclient.setEncoding('binary'); ws.forwardclient.xstate = 0; ws.forwardclient.forwardwsocket = ws; } // 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(new Buffer(data, 'binary')); } 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, start forwarding. ws.forwardclient.connect(port, node.host, function () { Debug(1, 'TCP relay connected to ' + node.host + ':' + port + '.'); ws.forwardclient.xstate = 1; ws.resume(); }); } return; } }); } // Handle the web socket echo request, just echo back the data sent function handleEchoWebSocket(ws, req) { var domain = checkUserIpAddress(ws, req); if (domain == null) return; ws._socket.setKeepAlive(true, 240000); // Set TCP keep alive // 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) { }); } // 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); }; // 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('SHA384', 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(''); if (i > 0) { var nodeid = eventData.substring(i + 30, i + 30 + 64); 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('sha384').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(48, function (err, buf) { var nonce = buf.toString('hex'), opaque = obj.crypto.createHmac('SHA384', 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 = checkUserIpAddress(req, res); if (domain == null) return; 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 = checkUserIpAddress(req, res); if (domain == null) return; 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, click here to login.'); parent.Stop(files.datafile[0].path); }); } // Handle a request to download a mesh agent obj.handleMeshAgentRequest = function (req, res) { if (req.query.id != null) { // Send a specific mesh agent back var argentInfo = obj.parent.meshAgentBinaries[req.query.id]; if (argentInfo == 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=' + argentInfo.rname }); res.sendFile(argentInfo.path); } else if (req.query.script != null) { // Send a specific mesh install script back var scriptInfo = obj.parent.meshAgentInstallScripts[req.query.script]; if (scriptInfo == null) { 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 if (req.query.meshcmd != null) { // Send meshcmd for a specific platform back var argentInfo = obj.parent.meshAgentBinaries[req.query.meshcmd]; if (argentInfo == null) { res.sendStatus(404); return; } // Load the agent obj.fs.readFile(argentInfo.path, function (err, agentexe) { if (err != null) { res.sendStatus(404); return; } // Load meshcmd.js obj.fs.readFile(obj.path.join(__dirname, 'agents', 'meshcmd.js'), function (err, meshcmdjs) { if (err != 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=meshcmd' + ((req.query.meshcmd <= 4) ? '.exe' : '') }); var tail = new Buffer(8); tail.writeInt32BE(meshcmdjs.length, 0); tail.writeInt32BE(agentexe.length + meshcmdjs.length + 8, 4); res.send(Buffer.concat([agentexe, meshcmdjs, tail])); }); }); } else if (req.query.meshaction != null) { var domain = checkUserIpAddress(req, res); var user = obj.users[req.session.userid]; if (domain == null || req.query.nodeid == null) { res.sendStatus(404); return; } obj.db.Get(req.query.nodeid, function (err, nodes) { if (nodes.length != 1) { res.sendStatus(401); return; } var node = nodes[0]; // Create the meshaction.txt file for meshcmd.exe var meshaction = { action: req.query.meshaction, localPort: 1234, remoteName: node.name, remoteNodeId: node._id, remotePort: 3389, username: '', password: '', serverId: obj.agentCertificateHashHex.toUpperCase(), // SHA384 of server HTTPS public key serverHttpsHash: new Buffer(obj.webCertificateHash, 'binary').toString('hex').toUpperCase(), // SHA384 of server HTTPS certificate debugLevel: 0 } if (user != null) { meshaction.username = user.name; } if (obj.args.lanonly != true) { meshaction.serverUrl = ((obj.args.notls == true) ? 'ws://' : 'wss://') + obj.certificates.CommonName + ':' + obj.args.port + '/' + ((domain.id == '') ? '' : ('/' + domain.id)) + 'meshrelay.ashx'; } res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'text/plain', 'Content-Disposition': 'attachment; filename=meshaction.txt' }); res.send(JSON.stringify(meshaction, null, ' ')); }); } else { // Send a list of available mesh agents var response = 'Mesh Agents'; response += ''; for (var agentid in obj.parent.meshAgentBinaries) { var agentinfo = obj.parent.meshAgentBinaries[agentid]; response += ''; response += ''; response += ''; } response += '
IDDescriptionLinkSizeSHA384
' + agentinfo.id + '' + agentinfo.desc + '' + agentinfo.rname + '' + agentinfo.size + '' + agentinfo.hash + '
'; res.send(response); } } // Handle a request to download a mesh settings obj.handleMeshSettingsRequest = function (req, res) { var domain = checkUserIpAddress(req, res); if (domain == null) return; //if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid)) { res.sendStatus(401); return; } // Query the meshid 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 == null) || (mesh.links[user._id] == null) || ((mesh.links[user._id].rights & 1) == 0)) { res.sendStatus(401); return; } //if (domain.id != mesh.domain) { res.sendStatus(401); return; } var meshidhex = new Buffer(req.query.id.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase(); var serveridhex = new Buffer(obj.agentCertificateHashBase64.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase(); var xdomain = domain.id; if (xdomain != '') xdomain += "/"; var meshsettings = "MeshName=" + mesh.name + "\r\nMeshType=" + mesh.mtype + "\r\nMeshID=0x" + meshidhex + "\r\nServerID=" + serveridhex + "\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); }); } // 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', function (ws, req) { parent.multiServer.CreatePeerInServer(parent.multiServer, ws, req); } ); } 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', function (ws, req) { try { var domain = checkUserIpAddress(ws, req); if (domain != null) { obj.meshUserHandler.CreateMeshUser(obj, obj.db, ws, req, obj.args, domain); } } catch (e) { console.log(e); } }); 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, getDomain(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, click here to login.'); setTimeout(function () { parent.Stop(); }, 500); }); // 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, disconnectMode) { if (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 == null) return; // Check we have agent rights var rights = user.links[agent.dbMeshKey].rights; if ((rights != null) && ((rights & MESHRIGHT_AGENTCONSOLE) != 0) && (user.siteadmin == 0xFFFFFFFF)) { agent.close(disconnectMode); } } // Send the core module to the mesh agent obj.sendMeshAgentCore = function(user, domain, nodeid, core) { if (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 == null) return; // Check we have agent rights var rights = user.links[agent.dbMeshKey].rights; if ((rights != null) && ((rights & MESHRIGHT_AGENTCONSOLE) != 0) && (user.siteadmin == 0xFFFFFFFF)) { if (core == null) { // 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 SHA384 hash on the core module var hash = obj.crypto.createHash('sha384').update(new Buffer(core, 'binary')).digest().toString('binary'); // Send the code module to the agent agent.send(obj.common.ShortToStr(10) + obj.common.ShortToStr(0) + hash + core); } } } // Get the server path of a user or mesh object function getServerRootFilePath(obj) { if ((typeof obj != 'object') || (obj.domain == null) || (obj._id == null)) 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]); } // 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); /* obj.wssessions = {}; // UserId --> Array Of Sessions obj.wssessions2 = {}; // "UserId + SessionRnd" --> Session (Note that the SessionId is the UserId + / + SessionRnd) obj.wsPeerSessions = {}; // ServerId --> Array Of "UserId + SessionRnd" obj.wsPeerSessions2 = {}; // "UserId + SessionRnd" --> ServerId obj.wsPeerSessions3 = {}; // ServerId --> UserId --> [ SessionId ] */ // Count sessions and event any changes obj.recountSessions = function (changedSessionId) { if (changedSessionId == null) { // Recount all sessions // Calculate the session count for all userid's var newSessionsCount = {}; for (var userid in obj.wssessions) { newSessionsCount[userid] = obj.wssessions[userid].length; } for (var serverid in obj.wsPeerSessions3) { for (var userid in obj.wsPeerSessions3[serverid]) { var c = obj.wsPeerSessions3[serverid][userid].length; if (newSessionsCount[userid] == null) { newSessionsCount[userid] = c; } else { newSessionsCount[userid] += c; } } } // See what session counts have changed, event any changes for (var userid in newSessionsCount) { var newcount = newSessionsCount[userid]; var oldcount = obj.sessionsCount[userid]; if (oldcount == null) { oldcount = 0; } else { delete obj.sessionsCount[userid]; } if (newcount != oldcount) { var x = userid.split('/'); obj.parent.DispatchEvent(['*'], obj, { action: 'wssessioncount', username: x[2], count: newcount, domain: x[1], nolog: 1, nopeers: 1 }) } } // If there are any counts left in the old counts, event to zero for (var userid in obj.sessionsCount) { var oldcount = obj.sessionsCount[userid]; if ((oldcount != null) && (oldcount != 0)) { var x = userid.split('/'); obj.parent.DispatchEvent(['*'], obj, { action: 'wssessioncount', username: x[2], count: 0, domain: x[1], nolog: 1, nopeers: 1 }) } } // Set the new session counts obj.sessionsCount = newSessionsCount; } else { // Figure out the userid var userid = changedSessionId.split('/').slice(0, 3).join('/'); // Recount only changedSessionId var newcount = 0; if (obj.wssessions[userid] != null) { newcount = obj.wssessions[userid].length; } for (var serverid in obj.wsPeerSessions3) { if (obj.wsPeerSessions3[serverid][userid] != null) { newcount += obj.wsPeerSessions3[serverid][userid].length; } } var oldcount = obj.sessionsCount[userid]; if (oldcount == null) { oldcount = 0; } // If the count changed, update and event if (newcount != oldcount) { var x = userid.split('/'); obj.parent.DispatchEvent(['*'], obj, { action: 'wssessioncount', username: x[2], count: newcount, domain: x[1], nolog: 1, nopeers: 1 }) obj.sessionsCount[userid] = newcount; } } } // Generate a cryptographic key used to encode and decode cookies obj.generateCookieKey = function () { return new Buffer(obj.crypto.randomBytes(32), 'binary'); //return Buffer.alloc(32, 0); // Sets the key to zeros, debug only. } // Encode an object as a cookie using a key. (key must be 32 bytes long) obj.encodeCookie = function (o, key) { try { if (key == null) { key = obj.serverKey; } o.time = Math.floor(Date.now() / 1000); // Add the cookie creation time var iv = new Buffer(obj.crypto.randomBytes(12), 'binary'), cipher = obj.crypto.createCipheriv('aes-256-gcm', key, iv); var crypted = Buffer.concat([cipher.update(JSON.stringify(o), 'utf8'), cipher.final()]); return Buffer.concat([iv, cipher.getAuthTag(), crypted]).toString('base64').replace(/\+/g, '@').replace(/\//g, '$'); } catch (e) { return null; } } // Decode a cookie back into an object using a key. Return null if it's not a valid cookie. (key must be 32 bytes long) obj.decodeCookie = function (cookie, key) { try { if (key == null) { key = obj.serverKey; } cookie = new Buffer(cookie.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64'); var decipher = obj.crypto.createDecipheriv('aes-256-gcm', key, cookie.slice(0, 12)); decipher.setAuthTag(cookie.slice(12, 16)); var o = JSON.parse(decipher.update(cookie.slice(28), 'binary', 'utf8') + decipher.final('utf8')); if ((o.time == null) || (o.time == null) || (typeof o.time != 'number')) { return null; } o.time = o.time * 1000; // Decode the cookie creation time o.dtime = Date.now() - o.time; // Decode how long ago the cookie was created (in milliseconds) if ((o.dtime > 120000) || (o.dtime < -30000)) return null; // The cookie is only valid 120 seconds, or 30 seconds back in time (in case other server's clock is not quite right) return o; } catch (e) { return null; } } obj.serverKey = obj.generateCookieKey(); return obj; }