/**
* @description MeshCentral web server
* @author Ylian Saint-Hilaire
* @copyright Intel Corporation 2018-2019
* @license Apache-2.0
* @version v0.0.1
*/
/*jslint node: true */
/*jshint node: true */
/*jshint strict:false */
/*jshint -W097 */
/*jshint esversion: 6 */
"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 server object
module.exports.CreateWebServer = function (parent, db, args, certificates) {
var obj = {}, i = 0;
// Modules
obj.fs = require('fs');
obj.net = require('net');
obj.tls = require('tls');
obj.path = require('path');
obj.bodyParser = require('body-parser');
obj.session = require('cookie-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');
const constants = require('constants');
// 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 = null;
obj.certificates = certificates;
obj.args = args;
obj.users = {};
obj.meshes = {};
obj.userAllowedIp = args.userallowedip; // List of allowed IP addresses for users
obj.agentAllowedIp = args.agentallowedip; // List of allowed IP addresses for agents
obj.agentBlockedIp = args.agentblockedip; // List of blocked IP addresses for agents
obj.tlsSniCredentials = null;
obj.dnsDomains = {};
// 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;
const MESHRIGHT_SETNOTES = 128;
// Site rights
const SITERIGHT_SERVERBACKUP = 1;
const SITERIGHT_MANAGEUSERS = 2;
const SITERIGHT_SERVERRESTORE = 4;
const SITERIGHT_FILEACCESS = 8;
const SITERIGHT_SERVERUPDATE = 16;
const SITERIGHT_LOCKED = 32;
// Setup SSPI authentication if needed
if ((obj.parent.platform == 'win32') && (obj.args.nousers != true) && (obj.parent.config != null) && (obj.parent.config.domains != null)) {
for (i in obj.parent.config.domains) { if (obj.parent.config.domains[i].auth == 'sspi') { var nodeSSPI = require('node-sspi'); obj.parent.config.domains[i].sspi = new nodeSSPI({ retrieveGroups: true, offerBasic: false }); } }
}
// Perform hash on web certificate and agent certificate
obj.webCertificateHash = parent.certificateOperations.getPublicKeyHashBinary(obj.certificates.web.cert);
obj.webCertificateHashs = { '': obj.webCertificateHash };
obj.webCertificateHashBase64 = Buffer.from(obj.webCertificateHash, 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$');
obj.webCertificateFullHash = parent.certificateOperations.getCertHashBinary(obj.certificates.web.cert);
obj.webCertificateFullHashs = { '': obj.webCertificateFullHash };
obj.agentCertificateHashHex = parent.certificateOperations.getPublicKeyHash(obj.certificates.agent.cert);
obj.agentCertificateHashBase64 = Buffer.from(obj.agentCertificateHashHex, 'hex').toString('base64').replace(/\+/g, '@').replace(/\//g, '$');
obj.agentCertificateAsn1 = parent.certificateOperations.forge.asn1.toDer(parent.certificateOperations.forge.pki.certificateToAsn1(parent.certificateOperations.forge.pki.certificateFromPem(parent.certificates.agent.cert))).getBytes();
// Compute the hash of all of the web certificates for each domain
for (var i in obj.parent.config.domains) {
if (obj.parent.config.domains[i].certhash != null) {
// If the web certificate hash is provided, use it.
obj.webCertificateHashs[i] = obj.webCertificateFullHashs[i] = Buffer.from(obj.parent.config.domains[i].certhash, 'hex').toString('binary');
if (obj.parent.config.domains[i].certkeyhash != null) { obj.webCertificateHashs[i] = Buffer.from(obj.parent.config.domains[i].certkeyhash, 'hex').toString('binary'); }
} else if ((obj.parent.config.domains[i].dns != null) && (obj.parent.config.domains[i].certs != null)) {
// If the domain has a different DNS name, use a different certificate hash.
// Hash the full certificate
obj.webCertificateFullHashs[i] = parent.certificateOperations.getCertHashBinary(obj.parent.config.domains[i].certs.cert);
try {
// Decode a RSA certificate and hash the public key.
obj.webCertificateHashs[i] = parent.certificateOperations.getPublicKeyHashBinary(obj.parent.config.domains[i].certs.cert);
} catch (ex) {
// This may be a ECDSA certificate, hash the entire cert.
obj.webCertificateHashs[i] = obj.webCertificateFullHashs[i];
}
}
}
// If we are running the legacy swarm server, compute the hash for that certificate
if (parent.certificates.swarmserver != null) {
obj.swarmCertificateAsn1 = parent.certificateOperations.forge.asn1.toDer(parent.certificateOperations.forge.pki.certificateToAsn1(parent.certificateOperations.forge.pki.certificateFromPem(parent.certificates.swarmserver.cert))).getBytes();
obj.swarmCertificateHash384 = parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.swarmserver.cert).publicKey, { md: parent.certificateOperations.forge.md.sha384.create(), encoding: 'binary' });
obj.swarmCertificateHash256 = parent.certificateOperations.forge.pki.getPublicKeyFingerprint(parent.certificateOperations.forge.pki.certificateFromPem(obj.certificates.swarmserver.cert).publicKey, { md: parent.certificateOperations.forge.md.sha256.create(), encoding: 'binary' });
}
// Main lists
obj.wsagents = {};
obj.wsagentsDisconnections = {};
obj.wsagentsDisconnectionsTimer = null;
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 }
var tlsSessionStore = {}; // Store TLS session information for quick resume.
var tlsSessionStoreCount = 0; // Number of cached TLS session information in store.
// 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; });
// Setup DNS domain TLS SNI credentials
{
var dnscount = 0;
obj.tlsSniCredentials = {};
for (i in obj.certificates.dns) { if (obj.parent.config.domains[i].dns != null) { obj.dnsDomains[obj.parent.config.domains[i].dns.toLowerCase()] = obj.parent.config.domains[i]; obj.tlsSniCredentials[obj.parent.config.domains[i].dns] = obj.tls.createSecureContext(obj.certificates.dns[i]).context; dnscount++; } }
if (dnscount > 0) { obj.tlsSniCredentials[''] = obj.tls.createSecureContext({ cert: obj.certificates.web.cert, key: obj.certificates.web.key, ca: obj.certificates.web.ca }).context; } else { obj.tlsSniCredentials = null; }
}
function TlsSniCallback(name, cb) {
var c = obj.tlsSniCredentials[name];
if (c != null) {
cb(null, c);
} else {
cb(null, obj.tlsSniCredentials['']);
}
}
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; }
// Session-persisted message middleware
obj.app.use(function (req, res, next) {
var err = null, msg = null, passhint = null;
if (req.session != null) {
err = req.session.error;
msg = req.session.success;
passhint = req.session.passhint;
delete req.session.error;
delete req.session.success;
delete req.session.passhint;
}
res.locals.message = '';
if (err != null) res.locals.message = '' + err + '
';
if (msg != null) res.locals.message = '' + msg + '
';
if (passhint != null) 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 = {}, i = 0;
for (i in parent.config.domains) { domainUserCount[i] = 0; }
for (i in docs) { var u = obj.users[docs[i]._id] = docs[i]; domainUserCount[u.domain]++; }
for (i in parent.config.domains) {
if (domainUserCount[i] == 0) {
// If newaccounts is set to no new accounts, but no accounts exists, temporarly allow account creation.
if ((parent.config.domains[i].newaccounts === 0) || (parent.config.domains[i].newaccounts === false)) { 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) {
obj.common.unEscapeAllLinksFieldName(docs);
for (var i in docs) { obj.meshes[docs[i]._id] = docs[i]; }
// We loaded the users and mesh state, start the server
serverStart();
});
});
// Authenticate the user
obj.authenticate = function (name, pass, domain, fn) {
if ((typeof (name) != 'string') || (typeof (pass) != 'string') || (typeof (domain) != 'object')) { fn(new Error('invalid fields')); return; }
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) { fn(new Error('cannot find user')); return; }
// 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 {
if (user.passtype != null) {
// IIS default clear or weak password hashing (SHA-1)
require('./pass').iishash(user.passtype, pass, user.salt, function (err, hash) {
if (err) return fn(err);
if (hash == user.hash) {
// Update the password to the stronger format.
require('./pass').hash(pass, function (err, salt, hash) { if (err) throw err; user.salt = salt; user.hash = hash; delete user.passtype; obj.db.SetUser(user); });
if ((user.siteadmin) && (user.siteadmin != 0xFFFFFFFF) && (user.siteadmin & 32) != 0) { fn('locked'); return; }
return fn(null, user._id);
}
fn(new Error('invalid password'), null, user.passhint);
});
} else {
// Default strong password hashing (pbkdf2 SHA384)
require('./pass').hash(pass, user.salt, function (err, hash) {
if (err) return fn(err);
if (hash == user.hash) {
if ((user.siteadmin) && (user.siteadmin != 0xFFFFFFFF) && (user.siteadmin & 32) != 0) { fn('locked'); return; }
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 in the IP list, return false if not.
function checkIpAddressEx(req, res, ipList, closeIfThis) {
try {
var ip;
if (req.connection) { // HTTP(S) request
ip = req.ip;
if (ip) { for (var i = 0; i < ipList.length; i++) { if (require('ipcheck').match(ip, ipList[i])) { if (closeIfThis === true) { res.sendStatus(401); } return true; } } }
if (closeIfThis === false) { res.sendStatus(401); }
} else if (req._socket) { // WebSocket request
ip = req._socket.remoteAddress;
// If a trusted reverse-proxy is sending us the remote IP address, use it.
// This is not done automatically for web socket like it's done for HTTP requests.
if ((obj.args.tlsoffload) && (res.headers['x-forwarded-for']) && ((obj.args.tlsoffload === true) || (obj.args.tlsoffload === ip) || (('::ffff:') + obj.args.tlsoffload === ip))) { ip = res.headers['x-forwarded-for']; }
if (ip) { for (var i = 0; i < ipList.length; i++) { if (require('ipcheck').match(ip, ipList[i])) { if (closeIfThis === true) { try { req.close(); } catch (e) { } } return true; } } }
if (closeIfThis === false) { try { req.close(); } catch (e) { } }
}
} catch (e) { console.log(e); } // Should never happen
return false;
}
// Check if the source IP address is allowed, return domain if allowed
function checkUserIpAddress(req, res) {
if ((obj.userBlockedIp != null) && (checkIpAddressEx(req, res, obj.userBlockedIp, true) == true)) { return null; }
if ((obj.userAllowedIp != null) && (checkIpAddressEx(req, res, obj.userAllowedIp, false) == false)) { return null; }
const domain = (req.url ? getDomain(req) : getDomain(res));
if ((domain.userblockedip != null) && (checkIpAddressEx(req, res, domain.userblockedip, true) == true)) { return null; }
if ((domain.userallowedip != null) && (checkIpAddressEx(req, res, domain.userallowedip, false) == false)) { return null; }
return domain;
}
// Check if the source IP address is allowed, return domain if allowed
function checkAgentIpAddress(req, res) {
if ((obj.agentBlockedIp != null) && (checkIpAddressEx(req, res, obj.agentBlockedIp, null) == true)) { return null; }
if ((obj.agentAllowedIp != null) && (checkIpAddressEx(req, res, obj.agentAllowedIp, null) == false)) { return null; }
const domain = (req.url ? getDomain(req) : getDomain(res));
if ((domain.agentblockedip != null) && (checkIpAddressEx(req, res, domain.agentblockedip, null) == true)) { return null; }
if ((domain.agentallowedip != null) && (checkIpAddressEx(req, res, domain.agentallowedip, null) == false)) { return null; }
return domain;
}
// Return the current domain of the request
function getDomain(req) {
if (req.xdomain != null) { return req.xdomain; } // Domain already set for this request, return it.
if (req.headers.host != null) { var d = obj.dnsDomains[req.headers.host.toLowerCase()]; if (d != null) return d; } // If this is a DNS name domain, return it here.
var x = req.url.split('/');
if (x.length < 2) return parent.config.domains[''];
var y = parent.config.domains[x[1].toLowerCase()];
if ((y != null) && (y.dns == null)) { return parent.config.domains[x[1].toLowerCase()]; }
return parent.config.domains[''];
}
function handleLogoutRequest(req, res) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (domain.auth == 'sspi')) 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 = null;
res.redirect(domain.url);
}
function handleLoginRequest(req, res) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
// Normally, use the body username/password. If this is a token, use the username/password in the session.
var xusername = req.body.username, xpassword = req.body.password;
if ((xusername == null) && (xpassword == null) && (req.body.token != null)) { xusername = req.session.tokenusername; xpassword = req.session.tokenpassword; }
// Authenticate the user
obj.authenticate(xusername, xpassword, domain, function (err, userid, passhint) {
if (userid) {
var user = obj.users[userid];
// Check if this user has 2-step login active
var tokenValid = 0;
const twoStepLoginSupported = ((domain.auth != 'sspi') && (obj.parent.certificates.CommonName != 'un-configured') && (obj.args.lanonly !== true) && (obj.args.nousers !== true));
const otplib = require('otplib')
otplib.authenticator.options = { window: 6 }; // Set +/- 3 minute window
if (twoStepLoginSupported && user.otpsecret && ((typeof (req.body.token) != 'string') || ((tokenValid = otplib.authenticator.check(req.body.token, user.otpsecret)) !== true))) {
// Failed OTP, check user's one time passwords
if ((req.body.token != null) && (user.otpkeys != null) && (user.otpkeys.keys != null)) {
var found = null;
var tokenNumber = parseInt(req.body.token);
for (var i = 0; i < user.otpkeys.keys.length; i++) { if ((tokenNumber === user.otpkeys.keys[i].p) && (user.otpkeys.keys[i].u === true)) { user.otpkeys.keys[i].u = false; found = i; } }
if (found == null) {
// 2-step auth is required, but the token is not present or not valid.
if (user.otpsecret != null) { req.session.error = 'Invalid token, try again.'; }
req.session.loginmode = '4';
req.session.tokenusername = xusername;
req.session.tokenpassword = xpassword;
res.redirect(domain.url);
return;
}
} else {
// 2-step auth is required, but the token is not present or not valid.
if (user.otpsecret != null) { req.session.error = 'Invalid token, try again.'; }
req.session.loginmode = '4';
req.session.tokenusername = xusername;
req.session.tokenpassword = xpassword;
res.redirect(domain.url);
return;
}
}
// Save login time
user.login = Math.floor(Date.now() / 1000);
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;
delete req.session.tokenusername;
delete req.session.tokenpassword;
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) {
// TODO: This is a terrible search!!! FIX THIS.
/*
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);
});
*/
res.redirect(domain.url); // Temporary
} 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;
if (err == 'locked') { req.session.error = 'Account locked.'; } else { 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) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (domain.auth == 'sspi')) return;
if ((domain.newaccounts === 0) || (domain.newaccounts === false)) { res.sendStatus(401); return; }
if (!obj.common.validateUsername(req.body.username, 1, 64) || !obj.common.validateEmail(req.body.email, 1, 256) || !obj.common.validateString(req.body.password1, 1, 256) || !obj.common.validateString(req.body.password2, 1, 256) || (req.body.password1 != req.body.password2) || req.body.username == '~' || !obj.common.checkPasswordRequirements(req.body.password1, domain.passwordrequirements)) {
req.session.loginmode = 2;
req.session.error = 'Unable to create account.';
res.redirect(domain.url);
} else {
// Check if this email was already verified
obj.db.GetUserWithVerifiedEmail(domain.id, req.body.email, function (err, docs) {
if (docs.length > 0) {
req.session.loginmode = 2;
req.session.error = 'Existing account with this email address.';
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: Math.floor(Date.now() / 1000), login: Math.floor(Date.now() / 1000), 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
require('./pass').hash(req.body.password1, function (err, salt, hash) {
if (err) throw err;
user.salt = salt;
user.hash = hash;
obj.db.SetUser(user);
// Send the verification email
if ((obj.parent.mailserver != null) && (domain.auth != 'sspi') && (obj.common.validateEmail(user.email, 1, 256) == true)) { obj.parent.mailserver.sendAccountCheckMail(domain, user.name, user.email); }
});
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', username: user.name, account: obj.CloneSafeUser(user), action: 'accountcreate', msg: 'Account created, email is ' + req.body.email, domain: domain.id });
}
res.redirect(domain.url);
}
});
}
}
// Called to process an account reset request
function handleResetAccountRequest(req, res) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (domain.auth == 'sspi')) return;
if ((domain.newaccounts === 0) || (domain.newaccounts === false)) { res.sendStatus(401); return; }
if (!req.body.email || checkEmail(req.body.email) == false) {
req.session.loginmode = 3;
req.session.error = 'Invalid email.';
res.redirect(domain.url);
} else {
obj.db.GetUserWithVerifiedEmail(domain.id, req.body.email, function (err, docs) {
if (docs.length == 0) {
req.session.loginmode = 3;
req.session.error = 'Account not found.';
res.redirect(domain.url);
} else {
var userFound = docs[0];
if (obj.parent.mailserver != null) {
obj.parent.mailserver.sendAccountResetMail(domain, userFound.name, userFound.email);
req.session.loginmode = 1;
req.session.error = 'Hold on, reset mail sent.';
res.redirect(domain.url);
} else {
req.session.loginmode = 3;
req.session.error = 'Unable to sent email.';
res.redirect(domain.url);
}
}
});
}
}
// Called to process a web based email verification request
function handleCheckMailRequest(req, res) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (domain.auth == 'sspi')) return;
if (req.query.c != null) {
var cookie = obj.parent.decodeCookie(req.query.c, obj.parent.mailserver.mailCookieEncryptionKey, 30);
if ((cookie != null) && (cookie.u != null) && (cookie.e != null)) {
var idsplit = cookie.u.split('/');
if ((idsplit.length != 2) || (idsplit[0] != domain.id)) {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'ERROR: Invalid domain. Go to login page.' });
} else {
obj.db.Get('user/' + cookie.u, function (err, docs) {
if (docs.length == 0) {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'ERROR: Invalid username \"' + EscapeHtml(cookie.u) + '\". Go to login page.' });
} else {
var user = docs[0];
if (user.email != cookie.e) {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'ERROR: Invalid e-mail \"' + EscapeHtml(user.email) + '\" for user \"' + EscapeHtml(user.name) + '\". Go to login page.' });
} else {
if (cookie.a == 1) {
// Account email verification
if (user.emailVerified == true) {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'E-mail \"' + EscapeHtml(user.email) + '\" for user \"' + EscapeHtml(user.name) + '\" already verified. Go to login page.' });
} else {
obj.db.GetUserWithVerifiedEmail(domain.id, user.email, function (err, docs) {
if (docs.length > 0) {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'E-mail \"' + EscapeHtml(user.email) + '\" already in use on a different account. Change the email address and try again. Go to login page.' });
} else {
// Set the verified flag
obj.users[user._id].emailVerified = true;
user.emailVerified = true;
obj.db.SetUser(user);
// Event the change
obj.parent.DispatchEvent(['*', 'server-users', user._id], obj, { etype: 'user', username: user.name, account: obj.CloneSafeUser(user), action: 'accountchange', msg: 'Verified email of user ' + EscapeHtml(user.name) + ' (' + EscapeHtml(userinfo.email) + ')', domain: domain.id });
// Send the confirmation page
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'Verified email ' + EscapeHtml(user.email) + ' for user account ' + EscapeHtml(user.name) + '. Go to login page.' });
// Send a notification
obj.parent.DispatchEvent([user._id], obj, { action: 'notify', value: 'Email verified:
' + EscapeHtml(user.email) + '.', nolog: 1 });
}
});
}
} else if (cookie.a == 2) {
// Account reset
if (user.emailVerified != true) {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'E-mail \"' + EscapeHtml(user.email) + '\" for user \"' + EscapeHtml(user.name) + '\" not verified. Go to login page.' });
} else {
// Set a temporary password
obj.crypto.randomBytes(16, function (err, buf) {
var newpass = buf.toString('base64').split('=').join('').split('/').join('');
require('./pass').hash(newpass, function (err, salt, hash) {
var userinfo = null;
if (err) throw err;
// Change the password
userinfo = obj.users[user._id];
userinfo.salt = salt;
userinfo.hash = hash;
userinfo.passchange = Math.floor(Date.now() / 1000);
userinfo.passhint = null;
delete userinfo.otpsecret; // Currently a email password reset will turn off 2-step login.
obj.db.SetUser(userinfo);
// Event the change
obj.parent.DispatchEvent(['*', 'server-users', user._id], obj, { etype: 'user', username: userinfo.name, account: obj.CloneSafeUser(userinfo), action: 'accountchange', msg: 'Password reset for user ' + EscapeHtml(user.name), domain: domain.id });
// Send the new password
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'Password for account ' + EscapeHtml(user.name) + ' has been reset to:
' + EscapeHtml(newpass) + '
Login and go to the \"My Account\" tab to update your password. Go to login page.' });
});
});
}
} else {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'ERROR: Invalid account check. Go to login page.' });
}
}
}
});
}
} else {
res.render(obj.path.join(obj.parent.webViewsPath, 'message'), { title: domain.title, title2: domain.title2, title3: 'Account Verification', message: 'ERROR: Invalid account check, verification url is only valid for 30 minutes. Go to login page.' });
}
}
}
function handleDeleteAccountRequest(req, res) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (domain.auth == 'sspi')) 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) {
// Remove all the mesh links to this user
if (user.links != null) {
for (var meshid in user.links) {
// Get the mesh
var mesh = obj.meshes[meshid];
if (mesh) {
// Remove user from the mesh
var escUserId = obj.common.escapeFieldName(userid);
if (mesh.links[escUserId] != null) { delete mesh.links[escUserId]; obj.db.Set(mesh); }
// Notify mesh change
var change = 'Removed user ' + user.name + ' from group ' + mesh.name;
obj.parent.DispatchEvent(['*', mesh._id, user._id, userid], obj, { etype: 'mesh', username: user.name, userid: userid, meshid: mesh._id, name: mesh.name, mtype: mesh.mtype, desc: mesh.desc, action: 'meshchange', links: mesh.links, msg: change, domain: domain.id });
}
}
}
// Remove notes for this user
obj.db.Remove('nt' + user._id);
// Remove the user
obj.db.Remove(user._id);
delete obj.users[user._id];
req.session = null;
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) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (domain.auth == 'sspi')) 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
require('./pass').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 = Math.floor(Date.now() / 1000);
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) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
if (!obj.args) { res.sendStatus(500); return; }
if ((domain.sspi != null) && ((req.query.login == null) || (obj.parent.loginCookieEncryptionKey == null))) {
// Login using SSPI
domain.sspi.authenticate(req, res, function (err) { if ((err != null) || (req.connection.user == null)) { res.end('Authentication Required...'); } else { handleRootRequestEx(req, res, domain); } });
} else if (req.query.user && req.query.pass) {
// User credentials are being passed in the URL. WARNING: Putting credentials in a URL is not good security... but people are requesting this option.
var userid = 'user/' + domain.id + '/' + req.query.user.toLowerCase();
if (obj.users[userid] != null) {
obj.authenticate(req.query.user, req.query.pass, domain, function (err, userid) {
req.session.userid = userid;
req.session.domainid = domain.id;
req.session.currentNode = '';
handleRootRequestEx(req, res, domain);
});
}
} else {
// Login using a different system
handleRootRequestEx(req, res, domain);
}
}
function handleRootRequestEx(req, res, domain) {
var nologout = false, user = null, features = 0;
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 != '') && (domain.dns == null) && (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 && 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 = '';
} else if (req.query.login && (obj.parent.loginCookieEncryptionKey != null)) {
var loginCookie = obj.parent.decodeCookie(req.query.login, obj.parent.loginCookieEncryptionKey, 60); // 60 minute timeout
if ((loginCookie != null) && (loginCookie.a == 3) && (loginCookie.u != null) && (loginCookie.u.split('/')[1] == domain.id)) {
// If a login cookie was provided, setup the session here.
if (req.session && req.session.loginmode) { delete req.session.loginmode; }
req.session.userid = loginCookie.u;
req.session.domainid = domain.id;
req.session.currentNode = '';
}
} else if (domain.sspi != null) {
// SSPI login (Windows only)
//console.log(req.connection.user, req.connection.userSid);
if ((req.connection.user == null) || (req.connection.userSid == null)) {
res.sendStatus(404); return;
} else {
nologout = true;
req.session.userid = 'user/' + domain.id + '/' + req.connection.user.toLowerCase();
req.session.usersid = req.connection.userSid;
req.session.usersGroups = req.connection.userGroups;
req.session.domainid = domain.id;
req.session.currentNode = '';
// Check if this user exists, create it if not.
user = obj.users[req.session.userid];
if ((user == null) || (user.sid != req.session.usersid)) {
// Create the domain user
var usercount = 0, user2 = { type: 'user', _id: req.session.userid, name: req.connection.user, domain: domain.id, sid: req.session.usersid, creation: Math.floor(Date.now() / 1000), login: Math.floor(Date.now() / 1000) };
for (var i in obj.users) { if (obj.users[i].domain == domain.id) { usercount++; } }
if (usercount == 0) { user2.siteadmin = 0xFFFFFFFF; } // If this is the first user, give the account site admin.
obj.users[req.session.userid] = user2;
obj.db.SetUser(user2);
obj.parent.DispatchEvent(['*', 'server-users'], obj, { etype: 'user', username: req.connection.user, account: obj.CloneSafeUser(user2), action: 'accountcreate', msg: 'Domain account created, user ' + req.connection.user, domain: domain.id });
}
}
}
// Figure out the minimal password requirement
var passRequirements = null;
if (domain.passwordrequirements != null) {
if (domain.passrequirementstr == null) { domain.passwordrequirementsstr = encodeURIComponent(JSON.stringify(domain.passwordrequirements)); }
passRequirements = domain.passwordrequirementsstr;
}
// If a user exists and is logged in, serve the default app, otherwise server the login app.
if (req.session && req.session.userid && obj.users[req.session.userid]) {
var user = obj.users[req.session.userid];
if (req.session.domainid != domain.id) { req.session = null; 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;
} else if (req.query.viewmode) {
viewmode = req.query.viewmode;
}
var currentNode = '';
if (req.session.currentNode) {
currentNode = req.session.currentNode;
delete req.session.currentNode;
} else if (req.query.node) {
currentNode = 'node/' + domain.id + '/' + req.query.node;
}
var logoutcontrol = '';
if (obj.args.nousers != true) { logoutcontrol = 'Welcome ' + user.name + '.'; }
// Give the web page a list of supported server features
features = 0;
if (obj.args.wanonly == true) { features += 0x0001; } // WAN-only mode
if (obj.args.lanonly == true) { features += 0x0002; } // LAN-only mode
if (obj.args.nousers == true) { features += 0x0004; } // Single user mode
if (domain.userQuota == -1) { features += 0x0008; } // No server files mode
if (obj.args.mpstlsoffload) { features += 0x0010; } // No mutual-auth CIRA
if ((parent.config != null) && (parent.config.settings != null) && (parent.config.settings.allowframing == true)) { features += 0x0020; } // Allow site within iframe
if ((obj.parent.mailserver != null) && (obj.parent.certificates.CommonName != null) && (obj.parent.certificates.CommonName != 'un-configured') && (obj.args.lanonly != true)) { features += 0x0040; } // Email invites
if (obj.args.webrtc == true) { features += 0x0080; } // Enable WebRTC (Default false for now)
if (obj.args.clickonce !== false) { features += 0x0100; } // Enable ClickOnce (Default true)
if (obj.args.allowhighqualitydesktop == true) { features += 0x0200; } // Enable AllowHighQualityDesktop (Default false)
if (obj.args.lanonly == true || obj.args.mpsport == 0) { features += 0x0400; } // No CIRA
if ((obj.parent.serverSelfWriteAllowed == true) && (user != null) && (user.siteadmin == 0xFFFFFFFF)) { features += 0x0800; } // Server can self-write (Allows self-update)
if ((domain.auth != 'sspi') && (obj.parent.certificates.CommonName != 'un-configured') && (obj.args.lanonly !== true) && (obj.args.nousers !== true)) { features += 0x1000; } // 2-step login supported
if (domain.agentnoproxy === true) { features += 0x2000; } // Indicates that agents should be installed without using a HTTP proxy
// Create a authentication cookie
const authCookie = obj.parent.encodeCookie({ userid: user._id, domainid: domain.id }, obj.parent.loginCookieEncryptionKey);
// Send the master web application
if ((!obj.args.user) && (obj.args.nousers != true) && (nologout == false)) { logoutcontrol += ' Logout'; } // If a default user is in use or no user mode, don't display the logout button
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
if (obj.args.minify && !req.query.nominify) {
// Try to server the minified version if we can.
try {
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'default-mobile-min' : 'default-min'), { authCookie: authCookie, viewmode: viewmode, currentNode: currentNode, logoutControl: logoutcontrol, title: domain.title, title2: domain.title2, domainurl: domain.url, domain: domain.id, debuglevel: parent.debugLevel, serverDnsName: obj.getWebServerName(domain), serverRedirPort: args.redirport, serverPublicPort: httpsPort, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, sessiontime: args.sessiontime, mpspass: args.mpspass, passRequirements: passRequirements, webcerthash: Buffer.from(obj.webCertificateFullHashs[domain.id], 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'), footer: (domain.footer == null) ? '' : domain.footer });
} catch (ex) {
// In case of an exception, serve the non-minified version.
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'default-mobile' : 'default'), { authCookie: authCookie, viewmode: viewmode, currentNode: currentNode, logoutControl: logoutcontrol, title: domain.title, title2: domain.title2, domainurl: domain.url, domain: domain.id, debuglevel: parent.debugLevel, serverDnsName: obj.getWebServerName(domain), serverRedirPort: args.redirport, serverPublicPort: httpsPort, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, sessiontime: args.sessiontime, mpspass: args.mpspass, passRequirements: passRequirements, webcerthash: Buffer.from(obj.webCertificateFullHashs[domain.id], 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'), footer: (domain.footer == null) ? '' : domain.footer });
}
} else {
// Serve non-minified version of web pages.
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'default-mobile' : 'default'), { authCookie: authCookie, viewmode: viewmode, currentNode: currentNode, logoutControl: logoutcontrol, title: domain.title, title2: domain.title2, domainurl: domain.url, domain: domain.id, debuglevel: parent.debugLevel, serverDnsName: obj.getWebServerName(domain), serverRedirPort: args.redirport, serverPublicPort: httpsPort, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, sessiontime: args.sessiontime, mpspass: args.mpspass, passRequirements: passRequirements, webcerthash: Buffer.from(obj.webCertificateFullHashs[domain.id], 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'), footer: (domain.footer == null) ? '' : domain.footer });
}
} else {
// Send back the login application
var loginmode = req.session.loginmode;
features = 0;
delete req.session.loginmode; // Clear this state, if the user hits refresh, we want to go back to the login page.
if ((parent.config != null) && (parent.config.settings != null) && (parent.config.settings.allowframing == true)) { features += 32; } // Allow site within iframe
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
if (obj.args.minify && !req.query.nominify) {
// Try to server the minified version if we can.
try {
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'login-mobile-min' : 'login-min'), { loginmode: loginmode, rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, newAccount: domain.newaccounts, newAccountPass: (((domain.newaccountspass == null) || (domain.newaccountspass == '')) ? 0 : 1), serverDnsName: obj.getWebServerName(domain), serverPublicPort: httpsPort, emailcheck: obj.parent.mailserver != null, features: features, sessiontime: args.sessiontime, passRequirements: passRequirements, footer: (domain.footer == null) ? '' : domain.footer });
} catch (ex) {
// In case of an exception, serve the non-minified version.
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'login-mobile' : 'login'), { loginmode: loginmode, rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, newAccount: domain.newaccounts, newAccountPass: (((domain.newaccountspass == null) || (domain.newaccountspass == '')) ? 0 : 1), serverDnsName: obj.getWebServerName(domain), serverPublicPort: httpsPort, emailcheck: obj.parent.mailserver != null, features: features, sessiontime: args.sessiontime, passRequirements: passRequirements, footer: (domain.footer == null) ? '' : domain.footer });
}
} else {
// Serve non-minified version of web pages.
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'login-mobile' : 'login'), { loginmode: loginmode, rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, newAccount: domain.newaccounts, newAccountPass: (((domain.newaccountspass == null) || (domain.newaccountspass == '')) ? 0 : 1), serverDnsName: obj.getWebServerName(domain), serverPublicPort: httpsPort, emailcheck: obj.parent.mailserver != null, features: features, sessiontime: args.sessiontime, passRequirements: passRequirements, footer: (domain.footer == null) ? '' : domain.footer });
}
/*
var xoptions = { loginmode: loginmode, rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, newAccount: domain.newaccounts, newAccountPass: (((domain.newaccountspass == null) || (domain.newaccountspass == '')) ? 0 : 1), serverDnsName: obj.getWebServerName(domain), serverPublicPort: httpsPort, emailcheck: obj.parent.mailserver != null, features: features, footer: (domain.footer == null) ? '' : domain.footer };
var xpath = obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'login-mobile' : 'login');
console.log('Render...');
res.render(xpath, xoptions, function (err, html) {
console.log(err, html);
});
*/
}
}
// Get the link to the root certificate if needed
function getRootCertLink() {
// Check if the HTTPS certificate is issued from MeshCentralRoot, if so, add download link to root certificate.
if ((obj.args.notls == null) && (obj.tlsSniCredentials == null) && (obj.certificates.WebIssuer.indexOf('MeshCentralRoot-') == 0) && (obj.certificates.CommonName != 'un-configured')) { return 'Root Certificate'; }
return '';
}
// Render the terms of service.
function handleTermsRequest(req, res) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
// See if term.txt was loaded from the database
if ((parent.configurationFiles != null) && (parent.configurationFiles['terms.txt'] != null)) {
// Send the terms from the database
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 = null; 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(obj.parent.webViewsPath, isMobileBrowser(req) ? 'terms-mobile' : 'terms'), { title: domain.title, title2: domain.title2, terms: encodeURIComponent(parent.configurationFiles['terms.txt'].toString()), logoutControl: 'Welcome ' + user.name + '. Logout' });
} else {
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'terms-mobile' : 'terms'), { title: domain.title, title2: domain.title2, terms: encodeURIComponent(parent.configurationFiles['terms.txt'].toString()) });
}
} else {
// See if there is a terms.txt file in meshcentral-data
var p = obj.path.join(obj.parent.datapath, 'terms.txt');
if (obj.fs.existsSync(p)) {
obj.fs.readFile(p, 'utf8', function (err, data) {
if (err != null) { res.sendStatus(404); return; }
// Send the terms from terms.txt
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 = null; 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(obj.parent.webViewsPath, isMobileBrowser(req) ? 'terms-mobile' : 'terms'), { title: domain.title, title2: domain.title2, terms: encodeURIComponent(data), logoutControl: 'Welcome ' + user.name + '. Logout' });
} else {
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'terms-mobile' : 'terms'), { title: domain.title, title2: domain.title2, terms: encodeURIComponent(data) });
}
});
} else {
// Send the default terms
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 = null; 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(obj.parent.webViewsPath, isMobileBrowser(req) ? 'terms-mobile' : 'terms'), { title: domain.title, title2: domain.title2, logoutControl: 'Welcome ' + user.name + '. Logout' });
} else {
res.render(obj.path.join(obj.parent.webViewsPath, isMobileBrowser(req) ? 'terms-mobile' : 'terms'), { title: domain.title, title2: domain.title2 });
}
}
}
}
// Render the messenger application.
function handleMessengerRequest(req, res) {
var webRtcConfig = null;
if (obj.parent.config.settings && obj.parent.config.settings.webrtconfig && (typeof obj.parent.config.settings.webrtconfig == 'object')) { webRtcConfig = encodeURIComponent(JSON.stringify(obj.parent.config.settings.webrtconfig)); }
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0' });
res.render(obj.path.join(obj.parent.webViewsPath, 'messenger'), { webrtconfig: webRtcConfig });
}
// 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 Buffer.from(rootcert, 'base64').toString('base64');
}
// Returns the mesh server root certificate
function handleRootCertRequest(req, res) {
if (checkIpAddressEx(req, res, obj.userAllowedIp, false) === false) { return; } // Check server-wide IP filter only.
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(Buffer.from(getRootCertBase64(), 'base64'));
}
// Returns an mescript for Intel AMT configuration
function handleMeScriptRequest(req, res) {
if (checkIpAddressEx(req, res, obj.userAllowedIp, false) === false) { return; } // Check server-wide IP filter only.
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.AmtMpsName.split('.');
// Figure out the MPS port, use the alias if set
var mpsport = ((obj.args.mpsaliasport != null) ? obj.args.mpsaliasport : obj.args.mpsport);
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
obj.fs.readFile(obj.parent.path.join(obj.parent.webPublicPath, 'scripts/cira_setup_script_ip.mescript'), 'utf8', function (err, data) {
if (err != 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.AmtMpsName; // Set the server IPv4 address name
scriptFile.scriptBlocks[3].vars.ServerName.value = obj.certificates.AmtMpsName; // Set the server certificate name
scriptFile.scriptBlocks[3].vars.Port.value = 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.AmtMpsName + ':' + mpsport; // Set the primary server name:port to set periodic timer
//scriptFile.scriptBlocks[4].vars.AccessInfo2.value = obj.certificates.AmtMpsName + ':' + 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 = Buffer.from(scriptEngine.script_compile(runscript), 'binary').toString('base64');
scriptFile.scriptText = runscript;
// Send the script
res.send(Buffer.from(JSON.stringify(scriptFile, null, ' ')));
});
} else {
// Server name is a hostname
obj.fs.readFile(obj.parent.path.join(obj.parent.webPublicPath, 'scripts/cira_setup_script_dns.mescript'), 'utf8', function (err, data) {
if (err != 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.AmtMpsName; // Set the server DNS name
scriptFile.scriptBlocks[3].vars.Port.value = 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.AmtMpsName + ':' + mpsport; // Set the primary server name:port to set periodic timer
//scriptFile.scriptBlocks[4].vars.AccessInfo2.value = obj.certificates.AmtMpsName + ':' + 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 = Buffer.from(scriptEngine.script_compile(runscript), 'binary').toString('base64');
scriptFile.scriptText = runscript;
// Send the script
res.send(Buffer.from(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 });
obj.fs.readFile(obj.parent.path.join(obj.parent.webPublicPath, 'scripts/cira_cleanup.mescript'), 'utf8', function (err, data) {
if (err != null) { res.sendStatus(404); return; }
res.send(Buffer.from(data));
});
}
}
// Handle user public file downloads
function handleDownloadUserFiles(req, res) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
if (obj.common.validateString(req.path, 1, 4096) == false) { res.sendStatus(404); 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(obj.parent.webViewsPath, 'download'), { rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, message: "" + filename + ", " + stat.size + " byte" + ((stat.size < 2) ? '' : 's') + "." });
}
} else {
res.render(obj.path.join(obj.parent.webViewsPath, 'download'), { rootCertLink: getRootCertLink(), title: domain.title, title2: domain.title2, message: "Invalid file link, please check the URL again." });
}
}
// Handle logo request
function handleLogoRequest(req, res) {
const domain = checkUserIpAddress(req, res);
res.set({ 'Cache-Control': 'max-age=86400' }); // 1 day
if ((domain != null) && domain.titlepicture) {
if ((parent.configurationFiles != null) && (parent.configurationFiles[domain.titlepicture] != null)) {
// Use the logo in the database
res.set({ 'Content-Type': 'image/jpeg' });
res.send(parent.configurationFiles[domain.titlepicture]);
} else {
// Use the logo on file
try { res.sendFile(obj.path.join(obj.parent.datapath, domain.titlepicture)); } catch (e) {
try { res.sendFile(obj.path.join(obj.parent.webPublicPath, 'images/logoback.png')); } catch (e) { res.sendStatus(404); }
}
}
} else {
try { res.sendFile(obj.path.join(obj.parent.webPublicPath, 'images/logoback.png')); } catch (e) { res.sendStatus(404); }
}
}
// Take a "user/domain/userid/path/file" format and return the actual server disk file path if access is allowed
obj.getServerFilePath = function (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 == null) || (link.rights == null) || ((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
return { fullpath: obj.path.resolve(obj.filespath, serverpath), path: serverpath, name: filename, quota: obj.getQuota(objid, domain) };
};
// Return the maximum number of bytes allowed in the user account "My Files".
obj.getQuota = function (objid, domain) {
if (objid == null) return 0;
if (objid.startsWith('user/')) {
var user = obj.users[objid];
if (user == null) return 0;
if (user.siteadmin == 0xFFFFFFFF) return null; // Administrators have no user limit
if ((user.quota != null) && (typeof user.quota == 'number')) { return user.quota; }
if ((domain != null) && (domain.userquota != null) && (typeof domain.userquota == 'number')) { return domain.userquota; }
return null; // By default, the user will have no limit
} else if (objid.startsWith('mesh/')) {
var mesh = obj.meshes[objid];
if (mesh == null) return 0;
if ((mesh.quota != null) && (typeof mesh.quota == 'number')) { return mesh.quota; }
if ((domain != null) && (domain.meshquota != null) && (typeof domain.meshquota == 'number')) { return domain.meshquota; }
return null; // By default, the mesh will have no limit
}
return 0;
};
// Download a file from the server
function handleDownloadFile(req, res) {
const 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; }
const user = obj.users[req.session.userid];
if (user == null) { res.sendStatus(404); return; }
const file = obj.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) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid)) { res.sendStatus(401); return; }
const 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)
const multiparty = require('multiparty');
const 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];
obj.fs.readFile(file.path, 'utf8', function (err, data) {
if (err != 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], 'custom', data); // Upload the core
try { obj.fs.unlinkSync(file.path); } catch (e) { }
});
}
res.send('');
});
}
// Upload a file to the server
function handleUploadFile(req, res) {
const 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; }
const user = obj.users[req.session.userid];
if ((user.siteadmin & 8) == 0) { res.sendStatus(401); return; } // Check if we have file rights
const multiparty = require('multiparty');
const form = new multiparty.Form();
form.parse(req, function (err, fields, files) {
if ((fields == null) || (fields.link == null) || (fields.link.length != 1)) { /*console.log('UploadFile, Invalid Fields:', fields, files);*/ res.sendStatus(404); return; }
var xfile = obj.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 ((xfile.quota == null) || (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 = Buffer.from(datas[i].split(',')[1], 'base64');
if ((xfile.quota == null) || ((totalsize + filedata.length) < xfile.quota)) { // Check if quota would not be broken if we add this file
// Create the user folder if needed
(function (fullpath, filename, filedata) {
obj.fs.mkdir(xfile.fullpath, function () {
// Write the file
obj.fs.writeFile(obj.path.join(xfile.fullpath, filename), filedata, function () {
obj.parent.DispatchEvent([user._id], obj, 'updatefiles'); // Fire an event causing this user to update this files
});
});
})(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 = obj.path.join(xfile.fullpath, file.originalFilename);
if (obj.common.IsFilenameValid(file.originalFilename) && ((xfile.quota == null) || ((totalsize + file.size) < xfile.quota))) { // Check if quota would not be broken if we add this file
obj.fs.rename(file.path, fpath, function () {
obj.parent.DispatchEvent([user._id], obj, 'updatefiles'); // Fire an event causing this user to update this files
});
} else {
try { obj.fs.unlink(file.path, function (err) { }); } catch (e) { }
}
}
}
}
res.send('');
});
}
// Subscribe to all events we are allowed to receive
obj.subscribe = function (userid, target) {
const user = obj.users[userid];
const 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, domain, user, cookie) {
if (!(req.query.host)) { console.log('ERR: No host target specified'); try { ws.close(); } catch (e) { } return; } // Disconnect websocket
Debug(1, 'Websocket relay connected from ' + user.name + ' for ' + req.query.host + '.');
try { ws._socket.setKeepAlive(true, 240000); } catch (ex) { } // 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'); try { ws.close(); } catch (e) { } return; } // Disconnect websocket
var node = docs[0];
if (!node.intelamt) { console.log('ERR: Not AMT node'); try { ws.close(); } catch (e) { } return; } // Disconnect websocket
// 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)'); try { ws.close(); } catch (e) { } 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) && (cookie == null)) { // If a cookie is provided, don't allow the connection to jump again to a different server
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)) {
Debug(1, 'Opening relay CIRA channel connection to ' + req.query.host + '.');
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. Well, could be broken TLS 1.0 in firmware )
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) { } }
};
// Handle 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
const TLSSocket = require('tls').TLSSocket;
const tlsoptions = { secureProtocol: ((req.query.tls1only == 1) ? 'TLSv1_method' : 'SSLv23_method'), ciphers: 'RSA+AES:!aNULL:!MD5:!DSS', secureOptions: constants.SSL_OP_NO_SSLv2 | constants.SSL_OP_NO_SSLv3 | constants.SSL_OP_NO_COMPRESSION | constants.SSL_OP_CIPHER_SERVER_PREFERENCE, rejectUnauthorized: false };
const tlsock = new TLSSocket(ser, tlsoptions);
tlsock.on('error', function (err) { Debug(1, "CIRA TLS Connection Error ", err); });
tlsock.on('secureConnect', function () { Debug(2, "CIRA Secure TLS Connection"); ws._socket.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(Buffer.from(data, 'binary'));
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._socket.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, close the associated TCP connection.
ws.on('error', function (err) {
console.log('CIRA server websocket error from ' + ws._socket.remoteAddress + ', ' + err.toString().split('\r')[0] + '.');
Debug(1, 'Websocket relay closed on error.');
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
});
// 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(Buffer.from(data, 'binary')); } 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 });
ws.interceptor.blockAmtStorage = true;
}
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 });
ws.interceptor.blockAmtStorage = true;
}
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(1, '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) {
if (obj.parent.debugLevel >= 1) { // DEBUG
Debug(1, 'TCP relay data to ' + node.host + ', ' + msg.length + ' bytes');
if (obj.parent.debugLevel >= 4) { Debug(4, ' ' + msg.toString('hex')); }
}
msg = msg.toString('binary');
if (ws.interceptor) { msg = ws.interceptor.processBrowserData(msg); } // Run data thru interceptor
ws.forwardclient.write(Buffer.from(msg, 'binary')); // Forward data to the associated TCP connection.
});
// If error, close the associated TCP connection.
ws.on('error', function (err) {
console.log('Error with relay web socket connection from ' + ws._socket.remoteAddress + ', ' + err.toString().split('\r')[0] + '.');
Debug(1, 'Error with relay web socket connection from ' + ws._socket.remoteAddress + '.');
if (ws.forwardclient) { try { ws.forwardclient.destroy(); } catch (e) { } }
});
// If the web socket is closed, close the associated TCP connection.
ws.on('close', function () {
Debug(1, 'Closing relay web socket connection to ' + req.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._socket.resume();
} else {
// If TLS is going to be used, setup a TLS socket
var tlsoptions = { secureProtocol: ((req.query.tls1only == 1) ? 'TLSv1_method' : 'SSLv23_method'), ciphers: 'RSA+AES:!aNULL:!MD5:!DSS', secureOptions: constants.SSL_OP_NO_SSLv2 | constants.SSL_OP_NO_SSLv3 | constants.SSL_OP_NO_COMPRESSION | constants.SSL_OP_CIPHER_SERVER_PREFERENCE, rejectUnauthorized: false };
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._socket.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) {
if (obj.parent.debugLevel >= 1) { // DEBUG
Debug(1, 'TCP relay data from ' + node.host + ', ' + data.length + ' bytes.');
if (obj.parent.debugLevel >= 4) { Debug(4, ' ' + Buffer.from(data, 'binary').toString('hex')); }
}
if (ws.interceptor) { data = ws.interceptor.processAmtData(data); } // Run data thru interceptor
try { ws.send(Buffer.from(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._socket.resume();
});
}
return;
}
});
}
// Handle the web socket echo request, just echo back the data sent
function handleEchoWebSocket(ws, req) {
const 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) {
if (data.toString('utf8') == '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('Echo server error from ' + ws._socket.remoteAddress + ', ' + err.toString().split('\r')[0] + '.'); });
// If closed, do nothing
ws.on('close', function (req) { });
}
// Get the total size of all files in a folder and all sub-folders. (TODO: try to make all async version)
function readTotalFileSize(path) {
var r = 0, dir;
try { dir = obj.fs.readdirSync(path); } catch (e) { return 0; }
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. (TODO: try to make all async version)
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) {
const 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.ip;
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 group ' + 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) {
const 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
const 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 (obj.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) {
const 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; }
const user = obj.users[req.session.userid];
if ((user.siteadmin & 4) == 0) { res.sendStatus(401); return; } // Check if we have server restore rights
const multiparty = require('multiparty');
const 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) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
// If required, check if this user has rights to do this
if ((obj.parent.config.settings != null) && (obj.parent.config.settings.lockagentdownload == true) && (req.session.userid == null)) { res.sendStatus(401); return; }
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; }
if ((req.query.meshid == null) || (argentInfo.platform != 'win32')) {
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 {
// We are going to embed the .msh file into the Windows executable (signed or not).
// First, fetch the mesh object to build the .msh file
var mesh = obj.meshes['mesh/' + domain.id + '/' + req.query.meshid];
if (mesh == null) { res.sendStatus(401); return; }
// If required, check if this user has rights to do this
if ((obj.parent.config.settings != null) && (obj.parent.config.settings.lockagentdownload == true)) {
var user = obj.users[req.session.userid];
var escUserId = obj.common.escapeFieldName(user._id);
if ((user == null) || (mesh.links[escUserId] == null) || ((mesh.links[escUserId].rights & 1) == 0)) { res.sendStatus(401); return; }
if (domain.id != mesh.domain) { res.sendStatus(401); return; }
}
var meshidhex = Buffer.from(req.query.meshid.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase();
var serveridhex = Buffer.from(obj.agentCertificateHashBase64.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase();
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
// Build the agent connection URL. If we are using a sub-domain or one with a DNS, we need to craft the URL correctly.
var xdomain = (domain.dns == null) ? 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') + "://" + obj.getWebServerName(domain) + ":" + httpsPort + "/" + xdomain + "agent.ashx\r\n"; } else { meshsettings += "MeshServer=local"; }
if (req.query.tag != null) { meshsettings += "Tag=" + req.query.tag + "\r\n"; }
if ((req.query.installflags != null) && (req.query.installflags != 0)) { meshsettings += "InstallFlags=" + req.query.installflags + "\r\n"; }
if (domain.agentnoproxy === true) { meshsettings += "ignoreProxyFile=1\r\n"; }
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 });
obj.parent.exeHandler.streamExeWithMeshPolicy({ platform: 'win32', sourceFileName: obj.parent.meshAgentBinaries[req.query.id].path, destinationStream: res, msh: meshsettings, peinfo: obj.parent.meshAgentBinaries[req.query.id].pe });
}
} 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.send(scriptInfo.data.split('{{{noproxy}}}').join((domain.agentnoproxy === true)?'--no-proxy ':''));
} else if (req.query.meshcmd != null) {
// Send meshcmd for a specific platform back
var agentid = parseInt(req.query.meshcmd);
// If the agentid is 3 or 4, check if we have a signed MeshCmd.exe
if ((agentid == 3)) { // Signed Windows MeshCmd.exe x86
var stats = null, meshCmdPath = obj.path.join(__dirname, 'agents', 'MeshCmd-signed.exe');
try { stats = obj.fs.statSync(meshCmdPath); } catch (e) { }
if ((stats != null)) { 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 <= 3) ? '.exe' : '') }); res.sendFile(meshCmdPath); return; }
} else if ((agentid == 4)) { // Signed Windows MeshCmd64.exe x64
var stats = null, meshCmd64Path = obj.path.join(__dirname, 'agents', 'MeshCmd64-signed.exe');
try { stats = obj.fs.statSync(meshCmd64Path); } catch (e) { }
if ((stats != null)) { 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' : '') }); res.sendFile(meshCmd64Path); return; }
}
// No signed agents, we are going to merge a new MeshCmd.
if ((agentid < 10000) && (obj.parent.meshAgentBinaries[agentid + 10000] != null)) { agentid += 10000; } // Avoid merging javascript to a signed mesh agent.
var argentInfo = obj.parent.meshAgentBinaries[agentid];
if ((argentInfo == null) || (obj.parent.defaultMeshCmd == 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' : '') });
res.statusCode = 200;
if (argentInfo.signedMeshCmdPath != null) {
// If we hav a pre-signed MeshCmd, send that.
res.sendFile(argentInfo.signedMeshCmdPath);
} else {
// Merge JavaScript to a unsigned agent and send that.
obj.parent.exeHandler.streamExeWithJavaScript({ platform: argentInfo.platform, sourceFileName: argentInfo.path, destinationStream: res, js: Buffer.from(obj.parent.defaultMeshCmd, 'utf8'), peinfo: argentInfo.pe });
}
} else if (req.query.meshaction != null) {
const domain = checkUserIpAddress(req, res);
if (domain == null) { res.sendStatus(404); return; }
var user = obj.users[req.session.userid];
if ((req.query.meshaction == 'route') && (req.query.nodeid != null)) {
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: Buffer.from(obj.webCertificateHash, 'binary').toString('hex').toUpperCase(), // SHA384 of server HTTPS certificate
debugLevel: 0
};
if (user != null) { meshaction.username = user.name; }
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
if (obj.args.lanonly != true) { meshaction.serverUrl = ((obj.args.notls == true) ? 'ws://' : 'wss://') + obj.getWebServerName(domain) + ':' + httpsPort + '/' + ((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 if (req.query.meshaction == 'generic') {
var meshaction = {
username: '',
password: '',
serverId: obj.agentCertificateHashHex.toUpperCase(), // SHA384 of server HTTPS public key
serverHttpsHash: Buffer.from(obj.webCertificateHash, 'binary').toString('hex').toUpperCase(), // SHA384 of server HTTPS certificate
debugLevel: 0
};
if (user != null) { meshaction.username = user.name; }
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
if (obj.args.lanonly != true) { meshaction.serverUrl = ((obj.args.notls == true) ? 'ws://' : 'wss://') + obj.getWebServerName(domain) + ':' + httpsPort + '/' + ((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 {
res.sendStatus(401);
}
} else {
// Send a list of available mesh agents
var response = 'Mesh Agents';
response += '| ID | Description | Link | Size | SHA384 | MeshCmd |
|---|
';
for (var agentid in obj.parent.meshAgentBinaries) {
var agentinfo = obj.parent.meshAgentBinaries[agentid];
response += '| ' + agentinfo.id + ' | ' + agentinfo.desc + ' | ';
response += '' + agentinfo.rname + ' | ';
response += '' + agentinfo.size + ' | ' + agentinfo.hash + ' | ';
response += '' + agentinfo.rname.replace('agent', 'cmd') + ' |
';
}
response += '
';
res.send(response);
}
};
// Get the web server hostname. This may change if using a domain with a DNS name.
obj.getWebServerName = function(domain) {
if (domain.dns != null) return domain.dns;
return obj.certificates.CommonName;
}
// Create a OSX mesh agent installer
obj.handleMeshOsxAgentRequest = function (req, res) {
const domain = checkUserIpAddress(req, res);
if ((domain == null) || (req.query.id == null)) { res.sendStatus(404); return; }
// If required, check if this user has rights to do this
if ((obj.parent.config.settings != null) && (obj.parent.config.settings.lockagentdownload == true) && (req.session.userid == null)) { res.sendStatus(401); return; }
// Send a specific mesh agent back
var argentInfo = obj.parent.meshAgentBinaries[req.query.id];
if ((argentInfo == null) || (req.query.meshid == null)) { res.sendStatus(404); return; }
// We are going to embed the .msh file into the Windows executable (signed or not).
// First, fetch the mesh object to build the .msh file
var mesh = obj.meshes['mesh/' + domain.id + '/' + req.query.meshid];
if (mesh == null) { res.sendStatus(401); return; }
// If required, check if this user has rights to do this
if ((obj.parent.config.settings != null) && (obj.parent.config.settings.lockagentdownload == true)) {
var user = obj.users[req.session.userid];
var escUserId = obj.common.escapeFieldName(user._id);
if ((user == null) || (mesh.links[escUserId] == null) || ((mesh.links[escUserId].rights & 1) == 0)) { res.sendStatus(401); return; }
if (domain.id != mesh.domain) { res.sendStatus(401); return; }
}
var meshidhex = Buffer.from(req.query.meshid.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase();
var serveridhex = Buffer.from(obj.agentCertificateHashBase64.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase();
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
// Build the agent connection URL. If we are using a sub-domain or one with a DNS, we need to craft the URL correctly.
var xdomain = (domain.dns == null) ? 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') + "://" + obj.getWebServerName(domain) + ":" + httpsPort + "/" + xdomain + "agent.ashx\r\n"; } else { meshsettings += "MeshServer=local"; }
if (req.query.tag != null) { meshsettings += "Tag=" + req.query.tag + "\r\n"; }
if ((req.query.installflags != null) && (req.query.installflags != 0)) { meshsettings += "InstallFlags=" + req.query.installflags + "\r\n"; }
// Setup the response output
var archive = require('archiver')('zip', { level: 5 }); // Sets the compression method.
archive.on('error', function (err) { throw err; });
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/zip', 'Content-Disposition': 'attachment; filename=MeshAgent-' + mesh.name + '.zip' });
archive.pipe(res);
// Opens the "MeshAgentOSXPackager.zip"
var yauzl = require("yauzl");
yauzl.open(obj.path.join(__dirname, 'agents', 'MeshAgentOSXPackager.zip'), { lazyEntries: true }, function (err, zipfile) {
if (err) { res.sendStatus(500); return; }
zipfile.readEntry();
zipfile.on("entry", function (entry) {
if (/\/$/.test(entry.fileName)) {
// Skip all folder entries
zipfile.readEntry();
} else {
if (entry.fileName == 'MeshAgent.mpkg/Contents/distribution.dist') {
// This is a special file entry, we need to fix it.
zipfile.openReadStream(entry, function (err, readStream) {
readStream.on("data", function (data) { if (readStream.xxdata) { readStream.xxdata += data; } else { readStream.xxdata = data; } });
readStream.on("end", function () {
var meshname = mesh.name.split(']').join('').split('[').join(''); // We can't have ']]' in the string since it will terminate the CDATA.
var welcomemsg = 'Welcome to the MeshCentral agent for MacOS\n\nThis installer will install the mesh agent for "' + meshname + '" and allow the administrator to remotely monitor and control this computer over the internet. For more information, go to https://www.meshcommander.com/meshcentral2.\n\nThis software is provided under Apache 2.0 license.\n';
var installsize = Math.floor((argentInfo.size + meshsettings.length) / 1024);
archive.append(readStream.xxdata.toString().split('###WELCOMEMSG###').join(welcomemsg).split('###INSTALLSIZE###').join(installsize), { name: entry.fileName });
zipfile.readEntry();
});
});
} else {
// Normal file entry
zipfile.openReadStream(entry, function (err, readStream) {
if (err) { throw err; }
var options = { name: entry.fileName };
if (entry.fileName.endsWith('postflight') || entry.fileName.endsWith('Uninstall.command')) { options.mode = 493; }
archive.append(readStream, options);
readStream.on('end', function () { zipfile.readEntry(); });
});
}
}
});
zipfile.on("end", function () {
archive.file(argentInfo.path, { name: "MeshAgent.mpkg/Contents/Packages/internal.pkg/Contents/meshagent_osx64.bin" });
archive.append(meshsettings, { name: "MeshAgent.mpkg/Contents/Packages/internal.pkg/Contents/meshagent_osx64.msh" });
archive.finalize();
});
});
}
// Handle a request to download a mesh settings
obj.handleMeshSettingsRequest = function (req, res) {
const domain = checkUserIpAddress(req, res);
if (domain == null) return;
//if ((domain.id !== '') || (!req.session) || (req.session == null) || (!req.session.userid)) { res.sendStatus(401); return; }
// If required, check if this user has rights to do this
if ((obj.parent.config.settings != null) && (obj.parent.config.settings.lockagentdownload == true) && (req.session.userid == null)) { res.sendStatus(401); return; }
// Fetch the mesh object
var mesh = obj.meshes['mesh/' + domain.id + '/' + req.query.id];
if (mesh == null) { res.sendStatus(401); return; }
// If needed, check if this user has rights to do this
if ((obj.parent.config.settings != null) && (obj.parent.config.settings.lockagentdownload == true)) {
var user = obj.users[req.session.userid];
var escUserId = obj.common.escapeFieldName(user._id);
if ((user == null) || (mesh.links[escUserId] == null) || ((mesh.links[escUserId].rights & 1) == 0)) { res.sendStatus(401); return; }
if (domain.id != mesh.domain) { res.sendStatus(401); return; }
}
var meshidhex = Buffer.from(req.query.id.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase();
var serveridhex = Buffer.from(obj.agentCertificateHashBase64.replace(/\@/g, '+').replace(/\$/g, '/'), 'base64').toString('hex').toUpperCase();
// Build the agent connection URL. If we are using a sub-domain or one with a DNS, we need to craft the URL correctly.
var xdomain = (domain.dns == null) ? domain.id : '';
if (xdomain != '') xdomain += "/";
var meshsettings = "MeshName=" + mesh.name + "\r\nMeshType=" + mesh.mtype + "\r\nMeshID=0x" + meshidhex + "\r\nServerID=" + serveridhex + "\r\n";
var httpsPort = ((obj.args.aliasport == null) ? obj.args.port : obj.args.aliasport); // Use HTTPS alias port is specified
if (obj.args.lanonly != true) { meshsettings += "MeshServer=ws" + (obj.args.notls ? '' : 's') + "://" + obj.getWebServerName(domain) + ":" + httpsPort + "/" + xdomain + "agent.ashx\r\n"; } else { meshsettings += "MeshServer=local"; }
if (req.query.tag != null) { meshsettings += "Tag=" + req.query.tag + "\r\n"; }
if ((req.query.installflags != null) && (req.query.installflags != 0)) { meshsettings += "InstallFlags=" + req.query.installflags + "\r\n"; }
if (domain.agentnoproxy === true) { meshsettings += "ignoreProxyFile=1\r\n"; }
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);
};
// Starts the HTTPS server, this should be called after the user/mesh tables are loaded
function serverStart() {
// Start the server, only after users and meshes are loaded from the database.
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, use only TLS 1.2 and higher with perfect forward secrecy (PFS).
const tlsOptions = { cert: obj.certificates.web.cert, key: obj.certificates.web.key, ca: obj.certificates.web.ca, rejectUnauthorized: true, ciphers: "HIGH:!aNULL:!eNULL:!EXPORT:!RSA:!DES:!RC4:!MD5:!PSK:!SRP:!CAMELLIA", secureOptions: constants.SSL_OP_NO_SSLv2 | constants.SSL_OP_NO_SSLv3 | constants.SSL_OP_NO_COMPRESSION | constants.SSL_OP_CIPHER_SERVER_PREFERENCE | constants.SSL_OP_NO_TLSv1 | constants.SSL_OP_NO_TLSv1_1 };
if (obj.tlsSniCredentials != null) { tlsOptions.SNICallback = TlsSniCallback; } // We have multiple web server certificate used depending on the domain name
obj.tlsServer = require('https').createServer(tlsOptions, obj.app);
obj.tlsServer.on('secureConnection', function () { /*console.log('tlsServer secureConnection');*/ });
obj.tlsServer.on('error', function () { console.log('tlsServer error'); });
obj.tlsServer.on('newSession', function (id, data, cb) { if (tlsSessionStoreCount > 1000) { tlsSessionStoreCount = 0; tlsSessionStore = {}; } tlsSessionStore[id.toString('hex')] = data; tlsSessionStoreCount++; cb(); });
obj.tlsServer.on('resumeSession', function (id, cb) { cb(null, tlsSessionStore[id.toString('hex')] || null); });
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');
if (obj.args.tlsoffload) { obj.app.set('trust proxy', obj.args.tlsoffload); } // Reverse proxy should add the "X-Forwarded-*" headers
obj.app.use(obj.bodyParser.urlencoded({ extended: false }));
var sessionOptions = {
name: 'xid', // Recommended security practice to not use the default cookie name
httpOnly: true,
keys: [obj.args.sessionkey], // If multiple instances of this server are behind a load-balancer, this secret must be the same for all instances
secure: (obj.args.notls != true) // Use this cookie only over TLS (Check this: https://expressjs.com/en/guide/behind-proxies.html)
}
if (obj.args.sessiontime != null) { sessionOptions.maxAge = (obj.args.sessiontime * 60 * 1000); }
obj.app.use(obj.session(sessionOptions));
// Add HTTP security headers to all responses
obj.app.use(function (req, res, next) {
res.removeHeader("X-Powered-By");
var domain = req.xdomain = getDomain(req);
// Detect if this is a file sharing domain, if so, just share files.
if ((domain != null) && (domain.share != null)) {
var rpath;
if (domain.dns == null) { rpath = req.url.split('/'); rpath.splice(1, 1); rpath = rpath.join('/'); } else { rpath = req.url; }
if ((res.headers != null) && (res.headers.upgrade)) {
// If this is a websocket, stop here.
res.sendStatus(404);
} else {
// Check if the file exists, if so, serve it.
obj.fs.exists(obj.path.join(domain.share, rpath), function (exists) { if (exists == true) { res.sendfile(rpath, { root: domain.share }); } else { res.sendStatus(404); } });
}
} else {
// 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'
/*
var headers = null;
if (obj.args.notls) {
// Default headers if no TLS is used
headers = { '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
headers = { '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'" };
}
if (parent.config.settings.accesscontrolalloworigin != null) { headers['Access-Control-Allow-Origin'] = parent.config.settings.accesscontrolalloworigin; }
res.set(headers);
*/
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) {
if (parent.config.domains[i].dns != null) { continue; } // This is a subdomain with a DNS name, no added HTTP bindings needed.
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.post(url + 'tokenlogin', 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 + 'resetaccount', handleResetAccountRequest);
obj.app.get(url + 'checkmail', handleCheckMailRequest);
obj.app.post(url + 'amtevents.ashx', obj.handleAmtEventRequest);
obj.app.get(url + 'meshagents', obj.handleMeshAgentRequest);
obj.app.get(url + 'messenger', handleMessengerRequest);
obj.app.get(url + 'meshosxagent', obj.handleMeshOsxAgentRequest);
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) { PerformWSSessionAuth(ws, req, true, function (ws1, req1, domain, user, cookie) { obj.meshRelayHandler.CreateMeshRelay(obj, ws1, req1, domain, user, cookie); }); });
obj.app.get(url + 'webrelay.ashx', function (req, res) { res.send('Websocket connection expected'); });
obj.app.ws(url + 'webrelay.ashx', function (ws, req) { PerformWSSessionAuth(ws, req, false, handleRelayWebSocket); });
obj.app.ws(url + 'control.ashx', function (ws, req) { PerformWSSessionAuth(ws, req, false, function (ws1, req1, domain, user, cookie) { obj.meshUserHandler.CreateMeshUser(obj, obj.db, ws1, req1, obj.args, domain, user); }); });
obj.app.get(url + 'logo.png', handleLogoRequest);
// Server picture
obj.app.get(url + 'serverpic.ashx', function (req, res) {
// Check if we have "server.jpg" in the data folder, if so, use that.
if ((parent.configurationFiles != null) && (parent.configurationFiles['server.jpg'] != null)) {
res.set({ 'Content-Type': 'image/jpeg' });
res.send(parent.configurationFiles['server.jpg']);
} else {
// Check if we have "server.jpg" in the data folder, if so, use that.
var p = obj.path.join(obj.parent.datapath, 'server.jpg');
if (obj.fs.existsSync(p)) {
// Use the data folder server picture
try { res.sendFile(p); } catch (e) { res.sendStatus(404); }
} else {
// Use the default server picture
try { res.sendFile(obj.path.join(obj.parent.webPublicPath, 'images/server-200.jpg')); } catch (e) { res.sendStatus(404); }
}
}
});
// Receive mesh agent connections
obj.app.ws(url + 'agent.ashx', function (ws, req) {
var domain = checkAgentIpAddress(ws, req);
if (domain == null) { Debug(1, 'Got agent connection from blocked IP address ' + ws._socket.remoteAddress + ', holding.'); return; }
// console.log('Agent connect: ' + ws._socket.remoteAddress);
try { obj.meshAgentHandler.CreateMeshAgent(obj, obj.db, ws, req, obj.args, domain); } catch (e) { console.log(e); }
});
// Creates a login token using the user/pass that is passed in as URL arguments.
// For example: https://localhost/createLoginToken.ashx?user=admin&pass=admin&a=3
// It's not advised to use this to create login tokens since the URL is often logged and you got credentials in the URL.
// However, people want it so here it is.
obj.app.get(url + 'createLoginToken.ashx', function (req, res) {
// A web socket session can be authenticated in many ways (Default user, session, user/pass and cookie). Check authentication here.
if ((req.query.user != null) && (req.query.pass != null)) {
// A user/pass is provided in URL arguments
obj.authenticate(req.query.user, req.query.pass, getDomain(req), function (err, userid) {
if ((err == null) && (obj.users[userid])) {
// User is authenticated, create a token
var x = { a: 3 }; for (var i in req.query) { if ((i != 'user') && (i != 'pass')) { x[i] = obj.common.toNumber(req.query[i]); } } x.u = userid;
res.send(obj.parent.encodeCookie(x, obj.parent.loginCookieEncryptionKey));
} else {
res.sendStatus(404);
}
});
} else {
res.sendStatus(404);
}
});
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.parent.webPublicPath));
// Start regular disconnection list flush every 2 minutes.
obj.wsagentsDisconnectionsTimer = setInterval(function () { obj.wsagentsDisconnections = {}; }, 120000);
}
// Start server on a free port
CheckListenPort(obj.args.port, StartWebServer);
}
// Authenticates a session and forwards
function PerformWSSessionAuth(ws, req, noAuthOk, func) {
try {
// Hold this websocket until we are ready.
ws._socket.pause();
// Check IP filtering and domain
var domain = null;
if (noAuthOk == true) { domain = getDomain(req); } else { domain = checkUserIpAddress(ws, req); } // If auth is required, enforce IP address filtering.
if (domain == null) { try { ws.send(JSON.stringify({ action: 'close', cause: 'noauth', msg: 'noauth-1' })); ws.close(); return; } catch (e) { return; } }
// A web socket session can be authenticated in many ways (Default user, session, user/pass and cookie). Check authentication here.
if ((req.query.user != null) && (req.query.pass != null)) {
// A user/pass is provided in URL arguments
obj.authenticate(req.query.user, req.query.pass, domain, function (err, userid) {
if ((err == null) && (obj.users[userid])) {
// We are authenticated
func(ws, req, domain, obj.users[userid]);
} else {
// Failed to authenticate, see if a default user is active
if (obj.args.user && obj.users['user/' + domain.id + '/' + obj.args.user.toLowerCase()]) {
// A default user is active
func(ws, req, domain, obj.users['user/' + domain.id + '/' + obj.args.user.toLowerCase()]);
} else {
// If not authenticated, close the websocket connection
Debug(1, 'ERR: Websocket bad user/pass auth');
try { ws.send(JSON.stringify({ action: 'close', cause: 'noauth', msg: 'noauth-2' })); ws.close(); } catch (e) { }
}
}
});
return;
} else if ((req.query.auth != null) && (req.query.auth != '')) {
// This is a encrypted cookie authentication
var cookie = obj.parent.decodeCookie(req.query.auth, obj.parent.loginCookieEncryptionKey, 240); // Cookie with 4 hour timeout
if ((cookie != null) && (obj.users[cookie.userid]) && (cookie.domainid == domain.id)) {
// Valid cookie, we are authenticated
func(ws, req, domain, obj.users[cookie.userid], cookie);
return;
} else {
// This is a bad cookie, keep going anyway, maybe we have a active session that will save us.
Debug(1, 'ERR: Websocket bad cookie auth: ' + req.query.auth);
}
}
if (obj.args.user && obj.users['user/' + domain.id + '/' + obj.args.user.toLowerCase()]) {
// A default user is active
func(ws, req, domain, obj.users['user/' + domain.id + '/' + obj.args.user.toLowerCase()]);
return;
} else if (req.session && (req.session.userid != null) && (req.session.domainid == domain.id) && (obj.users[req.session.userid])) {
// This user is logged in using the ExpressJS session
func(ws, req, domain, obj.users[req.session.userid]);
return;
}
if (noAuthOk != true) {
// If not authenticated, close the websocket connection
Debug(1, 'ERR: Websocket no auth');
try { ws.send(JSON.stringify({ action: 'close', cause: 'noauth', msg: 'noauth-4' })); ws.close(); } catch (e) { }
} else {
// Continue this session without user authentication,
// this is expected if the agent is connecting for a tunnel.
func(ws, req, domain, null);
}
} catch (e) { console.log(e); }
}
// 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 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 server running on port ' + port + ((args.aliasport != null) ? (', alias port ' + args.aliasport) : '') + '.'); });
} else {
obj.tcpServer = obj.tlsServer.listen(port, function () { console.log('MeshCentral HTTPS server running on ' + certificates.CommonName + ':' + port + ((args.aliasport != null) ? (', alias port ' + args.aliasport) : '') + '.'); });
obj.parent.updateServerState('servername', certificates.CommonName);
}
obj.parent.updateServerState('https-port', port);
if (args.aliasport != null) { obj.parent.updateServerState('https-aliasport', args.aliasport); }
} else {
obj.tcpServer = obj.app.listen(port, function () { console.log('MeshCentral HTTP server running on port ' + port + ((args.aliasport != null) ? (', alias port ' + args.aliasport) : '') + '.'); });
obj.parent.updateServerState('http-port', port);
if (args.aliasport != null) { obj.parent.updateServerState('http-aliasport', args.aliasport); }
}
}
// Force mesh agent disconnection
obj.forceMeshAgentDisconnect = function (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, coretype, coredata) {
if (nodeid == null) return;
const splitnode = nodeid.split('/');
if ((splitnode.length != 3) || (splitnode[1] != domain.id)) return; // Check that nodeid is valid and part of our domain
// TODO: This command only works if the agent is connected on the same server. Will not work with multi server peering.
const 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 (coretype == 'clear') {
// Clear the mesh agent core
agent.agentCoreCheck = 1000; // Tell the agent object we are using a custom core.
agent.send(obj.common.ShortToStr(10) + obj.common.ShortToStr(0));
} else if (coretype == 'default') {
// Reset to default code
agent.agentCoreCheck = 0; // Tell the agent object we are using a default code
agent.send(obj.common.ShortToStr(11) + obj.common.ShortToStr(0)); // Command 11, ask for mesh core hash.
} else if (coretype == 'recovery') {
// Reset to recovery core
agent.agentCoreCheck = 1001; // Tell the agent object we are using the recovery core.
agent.send(obj.common.ShortToStr(11) + obj.common.ShortToStr(0)); // Command 11, ask for mesh core hash.
} else if (coretype == 'custom') {
agent.agentCoreCheck = 1000; // Tell the agent object we are using a custom core.
const hash = obj.crypto.createHash('sha384').update(Buffer.from(coredata, 'binary')).digest().toString('binary'); // Perform a SHA384 hash on the core module
agent.send(obj.common.ShortToStr(10) + obj.common.ShortToStr(0) + hash + coredata); // Send the code module to the agent
}
}
};
// 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]);
}
// Return true is the input string looks like an email address
function checkEmail(str) {
var x = str.split('@');
var ok = ((x.length == 2) && (x[0].length > 0) && (x[1].split('.').length > 1) && (x[1].length > 2));
if (ok == true) { var y = x[1].split('.'); for (var i in y) { if (y[i].length == 0) { ok = false; } } }
return ok;
}
// 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]); }
}
/*
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) {
var userid, oldcount, newcount, x, serverid;
if (changedSessionId == null) {
// Recount all sessions
// Calculate the session count for all userid's
var newSessionsCount = {};
for (userid in obj.wssessions) { newSessionsCount[userid] = obj.wssessions[userid].length; }
for (serverid in obj.wsPeerSessions3) {
for (userid in obj.wsPeerSessions3[serverid]) {
x = obj.wsPeerSessions3[serverid][userid].length;
if (newSessionsCount[userid] == null) { newSessionsCount[userid] = x; } else { newSessionsCount[userid] += x; }
}
}
// See what session counts have changed, event any changes
for (userid in newSessionsCount) {
newcount = newSessionsCount[userid];
oldcount = obj.sessionsCount[userid];
if (oldcount == null) { oldcount = 0; } else { delete obj.sessionsCount[userid]; }
if (newcount != oldcount) {
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 (userid in obj.sessionsCount) {
oldcount = obj.sessionsCount[userid];
if ((oldcount != null) && (oldcount != 0)) {
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
userid = changedSessionId.split('/').slice(0, 3).join('/');
// Recount only changedSessionId
newcount = 0;
if (obj.wssessions[userid] != null) { newcount = obj.wssessions[userid].length; }
for (serverid in obj.wsPeerSessions3) { if (obj.wsPeerSessions3[serverid][userid] != null) { newcount += obj.wsPeerSessions3[serverid][userid].length; } }
oldcount = obj.sessionsCount[userid];
if (oldcount == null) { oldcount = 0; }
// If the count changed, update and event
if (newcount != oldcount) {
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;
}
}
};
// Clone a safe version of a user object, remove everything that is secret.
obj.CloneSafeUser = function(user) {
if (typeof user != 'object') { return user; }
var user2 = obj.common.Clone(user);
delete user2.hash;
delete user2.passhint;
delete user2.salt;
delete user2.type;
delete user2.domain;
delete user2.subscriptions;
delete user2.passtype;
if (user2.otpsecret) { user2.otpsecret = 1; } // Indicates a time secret is present.
if (user2.otpkeys) { user2.otpkeys = 1; } // Indicates a set of one time passwords are present.
return user2;
}
// Return true if a mobile browser is detected.
// This code comes from "http://detectmobilebrowsers.com/" and was modified, This is free and unencumbered software released into the public domain. For more information, please refer to the http://unlicense.org/
function isMobileBrowser(req) {
//var ua = req.headers['user-agent'].toLowerCase();
//return (/(android|bb\d+|meego).+mobile|mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(ua) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(ua.substr(0, 4)));
if (typeof req.headers['user-agent'] != 'string') return false;
return (req.headers['user-agent'].toLowerCase().indexOf('mobile') >= 0);
}
return obj;
};