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meshipkvm.js
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meshipkvm.js
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/**
* @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], "<div class=\"device-model\">", "<");
}
}
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];