/** * @description MeshCentral IP KVM Management Module * @author Ylian Saint-Hilaire * @copyright Intel Corporation 2021-2022 * @license Apache-2.0 * @version v0.0.1 */ function CreateIPKVMManager(parent) { const obj = {}; obj.parent = parent; obj.managedGroups = {} // meshid --> Manager obj.managedPorts = {} // nodeid --> PortInfo // Mesh Rights const MESHRIGHT_EDITMESH = 0x00000001; // 1 const MESHRIGHT_MANAGEUSERS = 0x00000002; // 2 const MESHRIGHT_MANAGECOMPUTERS = 0x00000004; // 4 const MESHRIGHT_REMOTECONTROL = 0x00000008; // 8 const MESHRIGHT_AGENTCONSOLE = 0x00000010; // 16 const MESHRIGHT_SERVERFILES = 0x00000020; // 32 const MESHRIGHT_WAKEDEVICE = 0x00000040; // 64 const MESHRIGHT_SETNOTES = 0x00000080; // 128 const MESHRIGHT_REMOTEVIEWONLY = 0x00000100; // 256 const MESHRIGHT_NOTERMINAL = 0x00000200; // 512 const MESHRIGHT_NOFILES = 0x00000400; // 1024 const MESHRIGHT_NOAMT = 0x00000800; // 2048 const MESHRIGHT_DESKLIMITEDINPUT = 0x00001000; // 4096 const MESHRIGHT_LIMITEVENTS = 0x00002000; // 8192 const MESHRIGHT_CHATNOTIFY = 0x00004000; // 16384 const MESHRIGHT_UNINSTALL = 0x00008000; // 32768 const MESHRIGHT_NODESKTOP = 0x00010000; // 65536 const MESHRIGHT_REMOTECOMMAND = 0x00020000; // 131072 const MESHRIGHT_RESETOFF = 0x00040000; // 262144 const MESHRIGHT_GUESTSHARING = 0x00080000; // 524288 const MESHRIGHT_DEVICEDETAILS = 0x00100000; // ?1048576? const MESHRIGHT_ADMIN = 0xFFFFFFFF; // Subscribe for mesh creation events parent.AddEventDispatch(['server-createmesh', 'server-deletemesh', 'server-editmesh', 'devport-operation'], obj); obj.HandleEvent = function (source, event, ids, id) { if ((event == null) || (event.mtype != 4)) return; if (event.action == 'createmesh') { // Start managing this new device group startManagement(parent.webserver.meshes[event.meshid]); } else if (event.action == 'deletemesh') { // Stop managing this device group stopManagement(event.meshid); } else if ((event.action == 'meshchange') && (event.relayid != null)) { // See if the relayid changed changeManagementRelayId(event.meshid, event.relayid); } else if ((event.action == 'turnon') || (event.action == 'turnoff')) { // Perform power operation const manager = obj.managedGroups[event.meshid]; if ((manager) && (manager.powerOperation)) { manager.powerOperation(event); } } } // Run thru the list of device groups that require for (var i in parent.webserver.meshes) { const mesh = parent.webserver.meshes[i]; if ((mesh.mtype == 4) && (mesh.deleted == null)) { startManagement(mesh); } } // Start managing a IP KVM device function startManagement(mesh) { if ((mesh == null) || (mesh.mtype != 4) || (mesh.kvm == null) || (mesh.deleted != null) || (obj.managedGroups[mesh._id] != null)) return; var port = 443, hostSplit = mesh.kvm.host.split(':'), host = hostSplit[0]; if (hostSplit.length == 2) { port = parseInt(hostSplit[1]); } if (mesh.kvm.model == 1) { // Raritan KX III const manager = CreateRaritanKX3Manager(obj, host, port, mesh.kvm.user, mesh.kvm.pass); manager.meshid = mesh._id; manager.relayid = mesh.relayid; manager.domainid = mesh._id.split('/')[1]; obj.managedGroups[mesh._id] = manager; manager.onStateChanged = onStateChanged; manager.onPortsChanged = onPortsChanged; manager.start(); } else if (mesh.kvm.model == 2) { // WebPowerSwitch 7 const manager = CreateWebPowerSwitch(obj, host, port, mesh.kvm.user, mesh.kvm.pass); manager.meshid = mesh._id; manager.relayid = mesh.relayid; manager.domainid = mesh._id.split('/')[1]; obj.managedGroups[mesh._id] = manager; manager.onStateChanged = onStateChanged; manager.onPortsChanged = onPortsChanged; manager.start(); } } // Stop managing a IP KVM device function stopManagement(meshid) { const manager = obj.managedGroups[meshid]; if (manager != null) { // Remove all managed ports for (var i = 0; i < manager.ports.length; i++) { const port = manager.ports[i]; const nodeid = generateIpKvmNodeId(manager.meshid, port.PortId, manager.domainid); delete obj.managedPorts[nodeid]; // Remove the managed port } // Remove the manager delete obj.managedGroups[meshid]; manager.stop(); } } // Change the relayid of a managed device if needed function changeManagementRelayId(meshid, relayid) { const manager = obj.managedGroups[meshid]; if ((manager != null) && (manager.relayid != null) && (manager.relayid != relayid)) { manager.updateRelayId(relayid); } } // Called when a KVM device changes state function onStateChanged(sender, state) { /* console.log('State: ' + ['Disconnected', 'Connecting', 'Connected'][state]); if (state == 2) { if (sender.deviceModel) { console.log('DeviceModel:', sender.deviceModel); } if (sender.firmwareVersion) { console.log('FirmwareVersion:', sender.firmwareVersion); } } */ if (state == 0) { // Disconnect all nodes for this device group for (var i in sender.ports) { const port = sender.ports[i]; const nodeid = generateIpKvmNodeId(sender.meshid, port.PortId, sender.domainid); if (obj.managedPorts[nodeid] != null) { parent.ClearConnectivityState(sender.meshid, nodeid, 1, null, null); delete obj.managedPorts[nodeid]; } } } } // Called when a KVM device changes state function onPortsChanged(sender, updatedPorts) { for (var i = 0; i < updatedPorts.length; i++) { const port = sender.ports[updatedPorts[i]]; const nodeid = generateIpKvmNodeId(sender.meshid, port.PortId, sender.domainid); if ((port.Status == 1) && (port.Class == 'PDU')) { //console.log(port.PortNumber + ', ' + port.PortId + ', ' + port.Name + ', ' + port.State); if ((obj.managedPorts[nodeid] == null) || (obj.managedPorts[nodeid].name != port.Name)) { parent.db.Get(nodeid, function (err, nodes) { if ((err != null) || (nodes == null)) return; const mesh = parent.webserver.meshes[sender.meshid]; if (nodes.length == 0) { // The device does not exist, create it const device = { type: 'node', mtype: 4, _id: nodeid, icon: 4, meshid: sender.meshid, name: port.Name, rname: port.Name, domain: sender.domainid, portid: port.PortId, portnum: port.PortNumber, porttype: 'PDU' }; parent.db.Set(device); // Event the new node parent.DispatchEvent(parent.webserver.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, { etype: 'node', action: 'addnode', nodeid: nodeid, node: device, msgid: 57, msgArgs: [port.Name, mesh.name], msg: ('Added device ' + port.Name + ' to device group ' + mesh.name), domain: sender.domainid }); } else { // The device exists, update it var changed = false; const device = nodes[0]; if (device.rname != port.Name) { device.rname = port.Name; changed = true; } // Update the device port name if ((mesh.flags) && (mesh.flags & 2) && (device.name != port.Name)) { device.name = port.Name; changed = true; } // Sync device name to port name if (changed) { // Update the database and event the node change parent.db.Set(device); parent.DispatchEvent(parent.webserver.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, { etype: 'node', action: 'changenode', nodeid: nodeid, node: device, domain: sender.domainid, nolog: 1 }); } } // Set the connectivity state if needed if (obj.managedPorts[nodeid] == null) { parent.SetConnectivityState(sender.meshid, nodeid, Date.now(), 1, port.State ? 1 : 8, null, null); obj.managedPorts[nodeid] = { name: port.Name, meshid: sender.meshid, portid: port.PortId, portType: port.PortType, portNo: port.PortIndex }; } }); } else { // Update connectivity state parent.SetConnectivityState(sender.meshid, nodeid, Date.now(), 1, port.State ? 1 : 8, null, null); } } else if ((port.Status == 1) && (port.Class == 'KVM')) { //console.log(port.PortNumber + ', ' + port.PortId + ', ' + port.Name + ', ' + port.Type + ', ' + ((port.StatAvailable == 0) ? 'Idle' : 'Connected')); if ((obj.managedPorts[nodeid] == null) || (obj.managedPorts[nodeid].name != port.Name)) { parent.db.Get(nodeid, function (err, nodes) { if ((err != null) || (nodes == null)) return; const mesh = parent.webserver.meshes[sender.meshid]; if (nodes.length == 0) { // The device does not exist, create it const device = { type: 'node', mtype: 4, _id: nodeid, icon: 1, meshid: sender.meshid, name: port.Name, rname: port.Name, domain: sender.domainid, porttype: port.Type, portid: port.PortId, portnum: port.PortNumber }; parent.db.Set(device); // Event the new node parent.DispatchEvent(parent.webserver.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, { etype: 'node', action: 'addnode', nodeid: nodeid, node: device, msgid: 57, msgArgs: [port.Name, mesh.name], msg: ('Added device ' + port.Name + ' to device group ' + mesh.name), domain: sender.domainid }); } else { // The device exists, update it var changed = false; const device = nodes[0]; if (device.rname != port.Name) { device.rname = port.Name; changed = true; } // Update the device port name if ((mesh.flags) && (mesh.flags & 2) && (device.name != port.Name)) { device.name = port.Name; changed = true; } // Sync device name to port name if (changed) { // Update the database and event the node change parent.db.Set(device); parent.DispatchEvent(parent.webserver.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, { etype: 'node', action: 'changenode', nodeid: nodeid, node: device, domain: sender.domainid, nolog: 1 }); } } // Set the connectivity state if needed if (obj.managedPorts[nodeid] == null) { parent.SetConnectivityState(sender.meshid, nodeid, Date.now(), 1, 1, null, null); obj.managedPorts[nodeid] = { name: port.Name, meshid: sender.meshid, portid: port.PortId, portType: port.PortType, portNo: port.PortIndex }; } // Update busy state const portInfo = obj.managedPorts[nodeid]; if ((portInfo.sessions != null) != (port.StatAvailable != 0)) { if (port.StatAvailable != 0) { portInfo.sessions = { kvm: { 'busy': 1 } } } else { delete portInfo.sessions; } // Event the new sessions, this will notify everyone that agent sessions have changed var event = { etype: 'node', action: 'devicesessions', nodeid: nodeid, domain: sender.domainid, sessions: portInfo.sessions, nolog: 1 }; parent.DispatchEvent(parent.webserver.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, event); } }); } else { // Update busy state const portInfo = obj.managedPorts[nodeid]; if ((portInfo.sessions != null) != (port.StatAvailable != 0)) { if (port.StatAvailable != 0) { portInfo.sessions = { kvm: { 'busy': 1 } } } else { delete portInfo.sessions; } // Event the new sessions, this will notify everyone that agent sessions have changed var event = { etype: 'node', action: 'devicesessions', nodeid: nodeid, domain: sender.domainid, sessions: portInfo.sessions, nolog: 1 }; parent.DispatchEvent(parent.webserver.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, event); } } } else { if (obj.managedPorts[nodeid] != null) { // This port is no longer connected parent.ClearConnectivityState(sender.meshid, nodeid, 1, null, null); const mesh = parent.webserver.meshes[sender.meshid]; // If the device group policy is set to auto-remove devices, remove it now if ((mesh != null) && (mesh.flags) && (mesh.flags & 1)) { // Auto-remove devices parent.db.Remove(nodeid); // Remove node with that id parent.db.Remove('nt' + nodeid); // Remove notes parent.db.Remove('lc' + nodeid); // Remove last connect time parent.db.Remove('al' + nodeid); // Remove error log last time parent.db.RemoveAllNodeEvents(nodeid); // Remove all events for this node parent.db.removeAllPowerEventsForNode(nodeid); // Remove all power events for this node // Event node deletion parent.parent.DispatchEvent(parent.CreateMeshDispatchTargets(sender.meshid, [nodeid]), obj, { etype: 'node', action: 'removenode', nodeid: nodeid, domain: domain.id, nolog: 1 }); } // Remove the managed port delete obj.managedPorts[nodeid]; } } } } // Generate the nodeid from the device group and device identifier function generateIpKvmNodeId(meshid, portid, domainid) { return 'node/' + domainid + '/' + parent.crypto.createHash('sha384').update(Buffer.from(meshid + '/' + portid)).digest().toString('base64').replace(/\+/g, '@').replace(/\//g, '$'); } // Parse an incoming HTTP request URL function parseIpKvmUrl(domain, url) { const q = require('url').parse(url, true); const i = q.path.indexOf('/ipkvm.ashx/'); if (i == -1) return null; const urlargs = q.path.substring(i + 12).split('/'); if (urlargs[0].length != 64) return null; const nodeid = 'node/' + domain.id + '/' + urlargs[0]; const nid = urlargs[0]; const kvmport = obj.managedPorts[nodeid]; if (kvmport == null) return null; const kvmmanager = obj.managedGroups[kvmport.meshid]; if (kvmmanager == null) return null; urlargs.shift(); var relurl = '/' + urlargs.join('/'); if (relurl.endsWith('/.websocket')) { relurl = relurl.substring(0, relurl.length - 11); } return { domain: domain.id, relurl: relurl, preurl: q.path.substring(0, i + 76), nodeid: nodeid, nid: nid, kvmmanager: kvmmanager, kvmport: kvmport }; } // Handle a IP-KVM HTTP get request obj.handleIpKvmGet = function (domain, req, res, next) { // Parse the URL and get information about this KVM port const reqinfo = parseIpKvmUrl(domain, req.url); if (reqinfo == null) { next(); return; } // Check node rights if ((req.session == null) || (req.session.userid == null)) { next(); return; } const user = parent.webserver.users[req.session.userid]; if (user == null) { next(); return; } const rights = parent.webserver.GetNodeRights(user, reqinfo.kvmmanager.meshid, reqinfo.nodeid); if ((rights & MESHRIGHT_REMOTECONTROL) == 0) { next(); return; } // Process the request reqinfo.kvmmanager.handleIpKvmGet(domain, reqinfo, req, res, next); } // Handle a IP-KVM HTTP websocket request obj.handleIpKvmWebSocket = function (domain, ws, req) { // Parse the URL and get information about this KVM port const reqinfo = parseIpKvmUrl(domain, req.url); if (reqinfo == null) { try { ws.close(); } catch (ex) { } return; } // Check node rights if ((req.session == null) || (req.session.userid == null)) { try { ws.close(); } catch (ex) { } return; } const user = parent.webserver.users[req.session.userid]; if (user == null) { try { ws.close(); } catch (ex) { } return; } const rights = parent.webserver.GetNodeRights(user, reqinfo.kvmmanager.meshid, reqinfo.nodeid); if ((rights & MESHRIGHT_REMOTECONTROL) == 0) { try { ws.close(); } catch (ex) { } return; } // Add more logging data to the request information reqinfo.clientIp = req.clientIp; reqinfo.userid = req.session.userid; reqinfo.username = user.name; // Process the request reqinfo.kvmmanager.handleIpKvmWebSocket(domain, reqinfo, ws, req); } return obj; } // Create Raritan Dominion KX III Manager function CreateRaritanKX3Manager(parent, hostname, port, username, password) { const https = require('https'); const obj = {}; var updateTimer = null; var retryTimer = null; obj.authCookie = null; obj.state = 0; // 0 = Disconnected, 1 = Connecting, 2 = Connected obj.ports = []; obj.portCount = 0; obj.portHash = null; obj.deviceCount = 0; obj.deviceHash = null; obj.started = false; // Events obj.onStateChanged = null; obj.onPortsChanged = null; function onCheckServerIdentity(cert) { console.log('TODO: Certificate Check'); } obj.start = function () { if (obj.started) return; obj.started = true; if (obj.relayid) { obj.router = CreateMiniRouter(parent, obj.relayid, hostname, port); obj.router.start(function () { connect(); }); } else { connect(); } } obj.stop = function () { if (!obj.started) return; obj.started = false; if (retryTimer != null) { clearTimeout(retryTimer); retryTimer = null; } setState(0); if (obj.router) { obj.router.stop(); delete obj.router; } } // If the relay device has changed, update our router obj.updateRelayId = function (relayid) { obj.relayid = relayid; if (obj.router != null) { obj.router.nodeid = relayid; } } function setState(newState) { if (obj.state == newState) return; obj.state = newState; if (obj.onStateChanged != null) { obj.onStateChanged(obj, newState); } if ((newState == 2) && (updateTimer == null)) { updateTimer = setInterval(obj.update, 10000); } if ((newState != 2) && (updateTimer != null)) { clearInterval(updateTimer); updateTimer = null; } if ((newState == 0) && (obj.started == true) && (retryTimer == null)) { retryTimer = setTimeout(connect, 20000); } if (newState == 0) { obj.ports = []; obj.portCount = 0; obj.deviceCount = 0; } } function connect() { if (obj.state != 0) return; setState(1); // 1 = Connecting obj.authCookie = null; if (retryTimer != null) { clearTimeout(retryTimer); retryTimer = null; } const data = Buffer.from('is_dotnet=0&is_javafree=0&is_standalone_client=0&is_javascript_kvm_client=1&is_javascript_rsc_client=1&login=' + encodeURIComponent(username) + '&password=' + encodeURIComponent(password) + '&action_login=Login'); const options = { hostname: hostname, port: port, rejectUnauthorized: false, checkServerIdentity: onCheckServerIdentity, path: '/auth.asp?client=javascript', // ?client=standalone method: 'POST', headers: { 'Content-Type': 'text/html; charset=UTF-8', 'Content-Length': data.length } } const req = https.request(options, function (res) { if (obj.state == 0) return; if ((res.statusCode != 302) || (res.headers['set-cookie'] == null) || (res.headers['location'] == null)) { setState(0); return; } for (var i in res.headers['set-cookie']) { if (res.headers['set-cookie'][i].startsWith('pp_session_id=')) { obj.authCookie = res.headers['set-cookie'][i].substring(14).split(';')[0]; } } if (obj.authCookie == null) { setState(0); return; } res.on('data', function (d) { }) fetchInitialInformation(); }) req.on('error', function (error) { setState(0); }); req.on('timeout', function () { setState(0); }); req.write(data); req.end(); } function checkCookie() { if (obj.state != 2) return; const options = { hostname: hostname, port: port, rejectUnauthorized: false, checkServerIdentity: onCheckServerIdentity, path: '/cookiecheck.asp', method: 'GET', headers: { 'Content-Type': 'text/html; charset=UTF-8', 'Cookie': 'pp_session_id=' + obj.authCookie } } const req = https.request(options, function (res) { if (obj.state == 0) return; if (res.statusCode != 302) { setState(0); return; } if (res.headers['set-cookie'] != null) { for (var i in res.headers['set-cookie']) { if (res.headers['set-cookie'][i].startsWith('pp_session_id=')) { obj.authCookie = res.headers['set-cookie'][i].substring(14).split(';')[0]; } } } res.on('data', function (d) { }) }); req.on('error', function (error) { setState(0); }); req.on('timeout', function () { setState(0); }); req.end(); } function fetchInitialInformation() { obj.fetch('/webs_cron.asp?_portsstatushash=&_devicesstatushash=&webs_job=sidebarupdates', null, null, function (server, tag, data) { data = data.toString(); const parsed = parseJsScript(data); for (var i in parsed['updateSidebarPanel']) { if (parsed['updateSidebarPanel'][i][0] == "cron_device") { obj.firmwareVersion = getSubString(parsed['updateSidebarPanel'][i][1], "Firmware: ", "<"); obj.deviceModel = getSubString(parsed['updateSidebarPanel'][i][1], "
", "<"); } } obj.fetch('/sidebar.asp', null, null, function (server, tag, data) { data = data.toString(); var dataBlock = getSubString(data, "updateKVMLinkHintOnContainer();", "devices.resetDevicesNew(1);"); if (dataBlock == null) { setState(0); return; } const parsed = parseJsScript(dataBlock); obj.portCount = parseInt(parsed['updatePortStatus'][0][0]) - 2; obj.portHash = parsed['updatePortStatus'][0][1]; obj.deviceCount = parseInt(parsed['updateDeviceStatus'][0][0]); obj.deviceHash = parsed['updateDeviceStatus'][0][1]; var updatedPorts = []; for (var i = 0; i < parsed['addPortNew'].length; i++) { const portInfo = parsePortInfo(parsed['addPortNew'][i]); obj.ports[portInfo.hIndex] = portInfo; updatedPorts.push(portInfo.hIndex); } setState(2); if (obj.onPortsChanged != null) { obj.onPortsChanged(obj, updatedPorts); } }); }); } obj.update = function () { obj.fetch('/webs_cron.asp?_portsstatushash=' + obj.portHash + '&_devicesstatushash=' + obj.deviceHash, null, null, function (server, tag, data) { data = data.toString(); const parsed = parseJsScript(data); if (parsed['updatePortStatus']) { obj.portCount = parseInt(parsed['updatePortStatus'][0][0]) - 2; obj.portHash = parsed['updatePortStatus'][0][1]; } if (parsed['updateDeviceStatus']) { obj.deviceCount = parseInt(parsed['updateDeviceStatus'][0][0]); obj.deviceHash = parsed['updateDeviceStatus'][0][1]; } if (parsed['updatePort']) { var updatedPorts = []; for (var i = 0; i < parsed['updatePort'].length; i++) { const portInfo = parsePortInfo(parsed['updatePort'][i]); obj.ports[portInfo.hIndex] = portInfo; updatedPorts.push(portInfo.hIndex); } if ((updatedPorts.length > 0) && (obj.onPortsChanged != null)) { obj.onPortsChanged(obj, updatedPorts); } } }); } function parsePortInfo(args) { var out = {}; for (var i = 0; i < args.length; i++) { var parsed = parseJsScript(args[i]); var v = parsed.J[0][1], vv = parseInt(v); out[parsed.J[0][0]] = (v == vv) ? vv : v; } return out; } function getSubString(str, start, end) { var i = str.indexOf(start); if (i < 0) return null; str = str.substring(i + start.length); i = str.indexOf(end); if (i >= 0) { str = str.substring(0, i); } return str; } // Parse JavaScript code calls function parseJsScript(str) { const out = {}; var functionName = ''; var args = []; var arg = null; var stack = []; for (var i = 0; i < str.length; i++) { if (stack.length == 0) { if (str[i] != '(') { if (isAlphaNumeric(str[i])) { functionName += str[i]; } else { functionName = ''; } } else { stack.push(')'); } } else { if (str[i] == stack[stack.length - 1]) { if (stack.length > 1) { if (arg == null) { arg = str[i]; } else { arg += str[i]; } } if (stack.length == 2) { if (arg != null) { args.push(trimQuotes(arg)); } arg = null; } else if (stack.length == 1) { if (arg != null) { args.push(trimQuotes(arg)); arg = null; } if (args.length > 0) { if (out[functionName] == null) { out[functionName] = [args]; } else { out[functionName].push(args); } } args = []; } stack.pop(); } else if ((str[i] == '\'') || (str[i] == '"') || (str[i] == '(')) { if (str[i] == '(') { stack.push(')'); } else { stack.push(str[i]); } if (stack.length > 0) { if (arg == null) { arg = str[i]; } else { arg += str[i]; } } } else { if ((stack.length == 1) && (str[i] == ',')) { if (arg != null) { args.push(trimQuotes(arg)); arg = null; } } else { if (stack.length > 0) { if (arg == null) { arg = str[i]; } else { arg += str[i]; } } } } } } return out; } function trimQuotes(str) { if ((str == null) || (str.length < 2)) return str; str = str.trim(); if ((str[0] == '\'') && (str[str.length - 1] == '\'')) { return str.substring(1, str.length - 1); } if ((str[0] == '"') && (str[str.length - 1] == '"')) { return str.substring(1, str.length - 1); } return str; } function isAlphaNumeric(char) { return ((char >= 'A') && (char <= 'Z')) || ((char >= 'a') && (char <= 'z')) || ((char >= '0') && (char <= '9')); } obj.fetch = function (url, postdata, tag, func) { if (obj.state == 0) return; var data = []; const options = { hostname: obj.router ? 'localhost' : hostname, port: obj.router ? obj.router.tcpServerPort : port, rejectUnauthorized: false, checkServerIdentity: onCheckServerIdentity, path: url, method: (postdata != null) ? 'POST' : 'GET', headers: { 'Content-Type': 'text/html; charset=UTF-8', 'Cookie': 'pp_session_id=' + obj.authCookie } } const req = https.request(options, function (res) { if (obj.state == 0) return; if (res.statusCode != 200) { setState(0); return; } if (res.headers['set-cookie'] != null) { for (var i in res.headers['set-cookie']) { if (res.headers['set-cookie'][i].startsWith('pp_session_id=')) { obj.authCookie = res.headers['set-cookie'][i].substring(14).split(';')[0]; } } } res.on('data', function (d) { data.push(d); }); res.on('end', function () { // This line is used for debugging only, used to swap a file. //if (url.endsWith('js_kvm_client.1604062083669.min.js')) { data = [ parent.parent.fs.readFileSync('c:\\tmp\\js_kvm_client.1604062083669.min.js') ] ; } func(obj, tag, Buffer.concat(data), res); }); }); req.on('error', function (error) { setState(0); }); req.on('timeout', function () { setState(0); }); req.end(); } // Handle a IP-KVM HTTP get request obj.handleIpKvmGet = function (domain, reqinfo, req, res, next) { if (reqinfo.relurl == '/') { res.redirect(reqinfo.preurl + '/jsclient/Client.asp'); return; } // Example: /jsclient/Client.asp#portId=P_000d5d20f64c_1 obj.fetch(reqinfo.relurl, null, [res, reqinfo], function (server, args, data, rres) { const resx = args[0], xreqinfo = args[1]; if (rres.headers['content-type']) { resx.set('content-type', rres.headers['content-type']); } if (xreqinfo.relurl.startsWith('/js/js_kvm_client.')) { data = data.toString(); // Since our cookies can't be read from the html page for security, we embed a dummy cookie into the page. data = data.replace('module$js$helper$Extensions.Utils.getCookieValue("pp_session_id")', '"DUMMCOOKIEY"'); // Add the connection information directly into the file. data = data.replace('\'use strict\';', '\'use strict\';sessionStorage.setItem("portPermission","CCC");sessionStorage.setItem("appId","1638838693725_3965868704642470");sessionStorage.setItem("portId","' + xreqinfo.kvmport.portid + '");sessionStorage.setItem("channelName","' + xreqinfo.kvmport.name + '");sessionStorage.setItem("portType","' + xreqinfo.kvmport.portType + '");sessionStorage.setItem("portNo","' + xreqinfo.kvmport.portNo + '");'); // Replace the WebSocket code in one of the files to make it work with our server. data = data.replace('b=new WebSocket(e+"//"+c+"/"+g);', 'b=new WebSocket(e+"//"+c+"/ipkvm.ashx/' + xreqinfo.nid + '/"+g);'); } resx.end(data); }); } function logConnection(wsClient) { const kvmport = wsClient.kvmport const reqinfo = wsClient.reqinfo; var event = { etype: 'relay', action: 'relaylog', domain: reqinfo.domain, userid: reqinfo.userid, username: reqinfo.username, msgid: 15, msgArgs: [kvmport.portid, reqinfo.clientIp, kvmport.portNo], msg: 'Started desktop session' + ' \"' + kvmport.portid + '\" from ' + reqinfo.clientIp + ' to ' + kvmport.portNo, protocol: 2, nodeid: reqinfo.nodeid }; parent.parent.DispatchEvent(['*', reqinfo.userid, reqinfo.nodeid, kvmport.meshid], obj, event); } function logDisconnection(wsClient) { const kvmport = wsClient.kvmport const reqinfo = wsClient.reqinfo; var event = { etype: 'relay', action: 'relaylog', domain: reqinfo.domain, userid: reqinfo.userid, username: reqinfo.username, msgid: 11, msgArgs: [kvmport.portid, reqinfo.clientIp, kvmport.portNo, Math.floor((Date.now() - kvmport.connectionStart) / 1000)], msg: 'Ended desktop session' + ' \"' + kvmport.portid + '\" from ' + reqinfo.clientIp + ' to ' + kvmport.portNo + ', ' + Math.floor((Date.now() - kvmport.connectionStart) / 1000) + ' second(s)', protocol: 2, nodeid: reqinfo.nodeid, bytesin: kvmport.bytesIn, bytesout: kvmport.bytesOut }; parent.parent.DispatchEvent(['*', reqinfo.userid, reqinfo.nodeid, kvmport.meshid], obj, event); delete kvmport.bytesIn; delete kvmport.bytesOut; delete kvmport.connectionStart; delete wsClient.reqinfo; } // Handle a IP-KVM HTTP websocket request obj.handleIpKvmWebSocket = function (domain, reqinfo, ws, req) { ws._socket.pause(); //console.log('handleIpKvmWebSocket', reqinfo.preurl); if (reqinfo.kvmport.wsClient != null) { // Relay already open //console.log('IPKVM Relay already present'); try { ws.close(); } catch (ex) { } } else { // Setup a websocket-to-websocket relay try { const options = { rejectUnauthorized: false, servername: 'raritan', // We set this to remove the IP address warning from NodeJS. headers: { Cookie: 'pp_session_id=' + obj.authCookie + '; view_length=32' } }; parent.parent.debug('relay', 'IPKVM: Relay connecting to: wss://' + hostname + ':' + port + '/rfb'); const WebSocket = require('ws'); reqinfo.kvmport.wsClient = new WebSocket('wss://' + hostname + ':' + port + '/rfb', options); reqinfo.kvmport.wsClient.wsBrowser = ws; ws.wsClient = reqinfo.kvmport.wsClient; reqinfo.kvmport.wsClient.kvmport = reqinfo.kvmport; reqinfo.kvmport.wsClient.reqinfo = reqinfo; reqinfo.kvmport.connectionStart = Date.now(); reqinfo.kvmport.bytesIn = 0; reqinfo.kvmport.bytesOut = 0; logConnection(reqinfo.kvmport.wsClient); reqinfo.kvmport.wsClient.on('open', function () { parent.parent.debug('relay', 'IPKVM: Relay websocket open'); this.wsBrowser.on('message', function (data) { //console.log('KVM browser data', data.toString('hex'), data.toString('utf8')); // Replace the authentication command that used the dummy cookie with a command that has the correct hash if ((this.xAuthNonce != null) && (this.xAuthNonce != 1) && (data.length == 67) && (data[0] == 0x21) && (data[1] == 0x41)) { const hash = Buffer.from(require('crypto').createHash('sha256').update(this.xAuthNonce + obj.authCookie).digest().toString('hex')); data = Buffer.alloc(67); data[0] = 0x21; // Auth Command data[1] = 0x41; // Length hash.copy(data, 2); // Hash this.xAuthNonce = 1; } // Check the port name if ((data[0] == 0x89) && (data.length > 4)) { const portNameLen = (data[2] << 8) + data[3]; if (data.length == (4 + portNameLen)) { const portName = data.slice(4).toString('utf8'); if (reqinfo.kvmport.portid != portName) { // The browser required an unexpected port for remote control, disconnect not. try { this._socket.close(); } catch (ex) { } return; } } } try { this.wsClient.kvmport.bytesOut += data.length; } catch (ex) { } this._socket.pause(); try { this.wsClient.send(data); } catch (ex) { } this._socket.resume(); }); this.wsBrowser.on('close', function () { parent.parent.debug('relay', 'IPKVM: Relay browser websocket closed'); // Clean up if (this.wsClient) { logDisconnection(this.wsClient); try { this.wsClient.close(); } catch (ex) { } try { if (this.wsClient.kvmport) { delete this.wsClient.kvmport.wsClient; delete this.wsClient.kvmport; } delete this.wsClient.wsBrowser; delete this.wsClient; } catch (ex) { console.log(ex); } } }); this.wsBrowser.on('error', function (err) { parent.parent.debug('relay', 'IPKVM: Relay browser websocket error: ' + err); }); this.wsBrowser._socket.resume(); }); reqinfo.kvmport.wsClient.on('message', function (data) { // Make sure to handle flow control. //console.log('KVM switch data', data, data.length, data.toString('hex')); // If the data start with 0x21 and 0x41 followed by {SHA256}, store the authenticate nonce if ((this.wsBrowser.xAuthNonce == null) && (data.length == 67) && (data[0] == 0x21) && (data[1] == 0x41) && (data[2] == 0x7b) && (data[3] == 0x53) && (data[4] == 0x48)) { this.wsBrowser.xAuthNonce = data.slice(2).toString().substring(0, 64); } try { this.wsBrowser.wsClient.kvmport.bytesIn += data.length; } catch (ex) { } this._socket.pause(); try { this.wsBrowser.send(data); } catch (ex) { } this._socket.resume(); }); reqinfo.kvmport.wsClient.on('close', function () { parent.parent.debug('relay', 'IPKVM: Relay websocket closed'); // Clean up try { if (this.wsBrowser) { logDisconnection(this.wsBrowser.wsClient); try { this.wsBrowser.close(); } catch (ex) { } delete this.wsBrowser.wsClient; delete this.wsBrowser; } if (this.kvmport) { delete this.kvmport.wsClient; delete this.kvmport; } } catch (ex) { console.log(ex); } }); reqinfo.kvmport.wsClient.on('error', function (err) { parent.parent.debug('relay', 'IPKVM: Relay websocket error: ' + err); }); } catch (ex) { console.log(ex); } } } return obj; } // Create WebPowerSwitch Manager function CreateWebPowerSwitch(parent, hostname, port, username, password) { port = 80; const https = require('http'); const crypto = require('crypto'); const obj = {}; var updateTimer = null; var retryTimer = null; var challenge = null; var challengeRetry = 0; var nonceCounter = 1; obj.state = 0; // 0 = Disconnected, 1 = Connecting, 2 = Connected obj.ports = []; obj.portCount = 0; obj.started = false; obj.onStateChanged = null; obj.onPortsChanged = null; function onCheckServerIdentity(cert) { console.log('TODO: Certificate Check'); } obj.start = function () { if (obj.started) return; obj.started = true; if (obj.state == 0) { if (obj.relayid) { obj.router = CreateMiniRouter(parent, obj.relayid, hostname, port); obj.router.start(function () { connect(); }); } else { connect(); } } } obj.stop = function () { if (!obj.started) return; obj.started = false; if (retryTimer != null) { clearTimeout(retryTimer); retryTimer = null; } setState(0); obj.ports = []; if (obj.router) { obj.router.stop(); delete obj.router; } } // If the relay device has changed, update our router obj.updateRelayId = function (relayid) { obj.relayid = relayid; if (obj.router != null) { obj.router.nodeid = relayid; } } function setState(newState) { if (obj.state == newState) return; obj.state = newState; if (obj.onStateChanged != null) { obj.onStateChanged(obj, newState); } if ((newState == 2) && (updateTimer == null)) { updateTimer = setInterval(obj.update, 10000); } if ((newState != 2) && (updateTimer != null)) { clearInterval(updateTimer); updateTimer = null; } if ((newState == 0) && (obj.started == true) && (retryTimer == null)) { retryTimer = setTimeout(connect, 20000); } if (newState == 0) { obj.ports = []; obj.portCount = 0; } } function connect() { if (obj.state != 0) return; if (retryTimer != null) { clearTimeout(retryTimer); retryTimer = null; } setState(1); // 1 = Connecting obj.update(); } obj.update = function () { obj.fetch('/restapi/relay/outlets/all;/=name,physical_state/', 'GET', null, null, function (sender, tag, rdata, res) { if (res.statusCode == 207) { var rdata2 = null; if (rdata != null) { try { rdata2 = JSON.parse(rdata); } catch (ex) { } } if (Array.isArray(rdata2)) { obj.portCount = (rdata2.length / 2); setState(2); // 2 = Connected const updatedPorts = []; for (var i = 0; i < (rdata2.length / 2); i++) { const portname = rdata2[i * 2]; const portstate = rdata2[(i * 2) + 1]; var portchanged = false; if (obj.ports[i] == null) { // Add the port obj.ports[i] = { PortNumber: i + 1, PortId: 'p' + i, Name: portname, Status: 1, State: portstate, Class: 'PDU' }; portchanged = true; } else { // Update the port const port = obj.ports[i]; if (port.Name != portname) { port.Name = portname; portchanged = true; } if (port.State != portstate) { port.State = portstate; portchanged = true; } } if (portchanged) { updatedPorts.push(i); } } if ((updatedPorts.length > 0) && (obj.onPortsChanged != null)) { obj.onPortsChanged(obj, updatedPorts); } } else { setState(0); // 0 = Disconnected } } else { setState(0); // 0 = Disconnected } }); } obj.powerOperation = function (event) { if (typeof event.portnum != 'number') return; if (event.action == 'turnon') { setPowerState(event.portnum - 1, true); } else if (event.action == 'turnoff') { setPowerState(event.portnum - 1, false); } } function setPowerState(port, state, func) { obj.fetch('/restapi/relay/outlets/' + port + '/state/', 'PUT', 'value=' + state, null, function (sender, tag, rdata, res) { if (res.statusCode == 204) { obj.update(); } }); } obj.fetch = function (url, method, data, tag, func) { if (obj.state == 0) return; if (typeof data == 'string') { data = Buffer.from(data); } var rdata = []; const options = { hostname: obj.router ? 'localhost' : hostname, port: obj.router ? obj.router.tcpServerPort : port, rejectUnauthorized: false, checkServerIdentity: onCheckServerIdentity, path: url, method: method, headers: { 'Content-Type': 'application/x-www-form-urlencoded', 'accept': 'application/json', 'X-CSRF': 'x' } } if (data != null) { options.headers['Content-Length'] = data.length; } if (challenge != null) { const buf = Buffer.alloc(10); challenge.cnonce = crypto.randomFillSync(buf).toString('hex'); challenge.nc = nonceCounter++; const ha1 = crypto.createHash('md5'); ha1.update([username, challenge.realm, password].join(':')); var xha1 = ha1.digest('hex') const ha2 = crypto.createHash('md5'); ha2.update([options.method, options.path].join(':')); var xha2 = ha2.digest('hex'); const response = crypto.createHash('md5'); response.update([xha1, challenge.nonce, challenge.nc, challenge.cnonce, challenge.qop, xha2].join(':')); var requestParams = { "username": username, "realm": challenge.realm, "nonce": challenge.nonce, "uri": options.path, "response": response.digest('hex'), "cnonce": challenge.cnonce, "opaque": challenge.opaque }; options.headers = options.headers || {}; options.headers.Authorization = renderDigest(requestParams) + ', algorithm=MD5, nc=' + challenge.nc + ', qop=' + challenge.qop; } const req = https.request(options, function (res) { if (obj.state == 0) return; //console.log('res.statusCode', res.statusCode); //if (res.statusCode != 200) { console.log(res.statusCode, res.headers, Buffer.concat(data).toString()); setState(0); return; } challengeRetry = 0; res.on('data', function (d) { rdata.push(d); }); res.on('end', function () { if (res.statusCode == 401) { challengeRetry++; if (challengeRetry > 4) { setState(0); return; } challenge = parseChallenge(res.headers['www-authenticate']); obj.fetch(url, method, data, tag, func); return; } else { // This line is used for debugging only, used to swap a file. func(obj, tag, Buffer.concat(rdata), res); } }); }); req.on('error', function (error) { setState(0); }); req.on('timeout', function () { setState(0); }); if (data) { req.write(data); } req.end(); } function parseChallenge(header) { header = header.replace('qop="auth,auth-int"', 'qop="auth"'); // We don't support auth-int yet, easiest way to get rid of it. const prefix = 'Digest '; const challenge = header.substr(header.indexOf(prefix) + prefix.length); const parts = challenge.split(','); const length = parts.length; const params = {}; for (var i = 0; i < length; i++) { var part = parts[i].match(/^\s*?([a-zA-Z0-0]+)="(.*)"\s*?$/); if (part && part.length > 2) { params[part[1]] = part[2]; } } return params; } function renderDigest(params) { const parts = []; for (var i in params) { parts.push(i + '="' + params[i] + '"'); } return 'Digest ' + parts.join(', '); } return obj; } // Mini TCP port router function CreateMiniRouter(parent, nodeid, targetHost, targetPort) { const Net = require('net'); const WebSocket = require('ws'); const obj = {}; const tcpSockets = {} obj.tcpServerPort = 0; obj.nodeid = nodeid; obj.targetHost = targetHost; obj.targetPort = targetPort; parent.parent.debug('relay', 'MiniRouter: Request relay for ' + obj.targetHost + ':' + obj.targetPort + ' thru ' + nodeid + '.'); // Close a TCP socket and the coresponding web socket. function closeTcpSocket(tcpSocket) { if (tcpSockets[tcpSocket]) { delete tcpSockets[tcpSocket]; try { tcpSocket.end(); } catch (ex) { console.log(ex); } if (tcpSocket.relaySocket) { try { tcpSocket.relaySocket.close(); } catch (ex) { console.log(ex); } } if (tcpSocket) { delete tcpSocket.relaySocket.tcpSocket; delete tcpSocket.relaySocket; } } } // Close a web socket and the coresponding TCP socket. function closeWebSocket(webSocket) { const tcpSocket = webSocket.tcpSocket; if (tcpSocket) { closeTcpSocket(tcpSocket); } } // Start the looppback server obj.start = function(onReadyFunc) { obj.tcpServer = new Net.Server(); obj.tcpServer.listen(0, 'localhost', function () { obj.tcpServerPort = obj.tcpServer.address().port; parent.parent.debug('relay', 'MiniRouter: Request for relay ' + obj.targetHost + ':' + obj.targetPort + ' started on port ' + obj.tcpServerPort); onReadyFunc(obj.tcpServerPort, obj); }); obj.tcpServer.on('connection', function (socket) { tcpSockets[socket] = 1; socket.pause(); socket.on('data', function (chunk) { // Make sure to handle flow control. const f = function sendDone() { sendDone.tcpSocket.resume(); } f.tcpSocket = this; if (this.relaySocket && this.relaySocket.active) { this.pause(); this.relaySocket.send(chunk, f); } }); socket.on('end', function () { closeTcpSocket(this); }); socket.on('close', function () { closeTcpSocket(this); }); socket.on('error', function (err) { closeTcpSocket(this); }); // Encode the device relay cookie. Note that there is no userid in this cookie. const domainid = obj.nodeid.split('/')[1]; const cookie = parent.parent.encodeCookie({ nouser: 1, domainid: domainid, nodeid: obj.nodeid, tcpaddr: obj.targetHost, tcpport: obj.targetPort }, parent.parent.loginCookieEncryptionKey); const domain = parent.parent.config.domains[domainid]; // Setup the correct URL with domain and use TLS only if needed. const options = { rejectUnauthorized: false }; const protocol = (parent.parent.args.tlsoffload) ? 'ws' : 'wss'; var domainadd = ''; if ((domain.dns == null) && (domain.id != '')) { domainadd = domain.id + '/' } const url = protocol + '://localhost:' + parent.parent.args.port + '/' + domainadd + 'meshrelay.ashx?noping=1&hd=1&auth=' + cookie; // TODO: &p=10, Protocol 10 is Web-RDP, Specify TCP routing protocol? parent.parent.debug('relay', 'MiniRouter: Connection websocket to ' + url); socket.relaySocket = new WebSocket(url, options); socket.relaySocket.tcpSocket = socket; socket.relaySocket.on('open', function () { parent.parent.debug('relay', 'MiniRouter: Relay websocket open'); }); socket.relaySocket.on('message', function (data) { // Make sure to handle flow control. if (!this.active) { if (data == 'c') { // Relay Web socket is connected, start data relay this.active = true; this.tcpSocket.resume(); } else { // Could not connect web socket, close it closeWebSocket(this); } } else { // Relay more data this._socket.pause(); const f = function sendDone() { sendDone.webSocket._socket.resume(); } f.webSocket = this; this.tcpSocket.write(data, f); } }); socket.relaySocket.on('close', function (reasonCode, description) { parent.parent.debug('relay', 'MiniRouter: Relay websocket closed'); closeWebSocket(this); }); socket.relaySocket.on('error', function (err) { parent.parent.debug('relay', 'MiniRouter: Relay websocket error: ' + err); closeWebSocket(this); }); }); } // Stop the looppback server and all relay sockets obj.stop = function () { for (var tcpSocket in tcpSockets) { closeTcpSocket(tcpSocket); } obj.tcpServer.close(); obj.tcpServer = null; } return obj; } module.exports.CreateIPKVMManager = CreateIPKVMManager;