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Improved IP-KVM relay to support remote desktop.

This commit is contained in:
Ylian Saint-Hilaire 2021-12-06 21:01:08 -08:00
parent f36f1c13c7
commit e66649b95b
1 changed files with 82 additions and 8 deletions
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90
meshipkvm.js
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@ -8,6 +8,7 @@
function CreateIPKVMManager(parent) {
const obj = {};
obj.parent = parent;
obj.managedGroups = {} // meshid --> Manager
obj.managedPorts = {} // nodeid --> PortInfo
@ -35,7 +36,7 @@ function CreateIPKVMManager(parent) {
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(host, port, mesh.kvm.user, mesh.kvm.pass);
const manager = CreateRaritanKX3Manager(obj, host, port, mesh.kvm.user, mesh.kvm.pass);
manager.meshid = mesh._id;
manager.domainid = mesh._id.split('/')[1];
obj.managedGroups[mesh._id] = manager;
@ -107,7 +108,7 @@ function CreateIPKVMManager(parent) {
// 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 };
obj.managedPorts[nodeid] = { name: port.Name, meshid: sender.meshid, portid: port.PortId, portType: port.PortType, portNo: port.PortIndex };
}
// Update busy state
@ -197,7 +198,7 @@ function CreateIPKVMManager(parent) {
return obj;
}
function CreateRaritanKX3Manager(hostname, port, username, password) {
function CreateRaritanKX3Manager(parent, hostname, port, username, password) {
const https = require('https');
const obj = {};
var updateTimer = null;
@ -431,6 +432,7 @@ function CreateRaritanKX3Manager(hostname, port, username, password) {
obj.fetch = function(url, postdata, tag, func) {
if (obj.state == 0) return;
var data = '';
const options = {
hostname: hostname,
@ -449,7 +451,11 @@ function CreateRaritanKX3Manager(hostname, port, username, password) {
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 += d; });
res.on('end', function () { func(obj, tag, data, res); });
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').toString(); }
func(obj, tag, data, res);
});
});
req.on('error', function (error) { console.log(error); setState(0); })
req.end();
@ -457,16 +463,19 @@ function CreateRaritanKX3Manager(hostname, port, username, password) {
// 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#portId=' + reqinfo.kvmport.portid); return; }
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']); }
// We need to replace the WebSocket code in one of the files to make it work with our server.
// Replace "b=new WebSocket(e+"//"+c+"/"+g);" in file "/js/js_kvm_client.1604062083669.min.js"
if (xreqinfo.relurl.startsWith('/js/js_kvm_client.')) {
// Since our cookies can't be read from the html page for security, we embed the cookie right into the page.
data = data.replace('module$js$helper$Extensions.Utils.getCookieValue("pp_session_id")', '"' + obj.authCookie + '"');
// 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);');
}
@ -476,8 +485,73 @@ function CreateRaritanKX3Manager(hostname, port, username, password) {
// Handle a IP-KVM HTTP websocket request
obj.handleIpKvmWebSocket = function (domain, reqinfo, ws, req) {
ws._socket.pause();
//console.log('handleIpKvmWebSocket', reqinfo.preurl);
// TODO
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',
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.on('open', function () {
parent.parent.debug('relay', 'IPKVM: Relay websocket open');
this.wsBrowser.on('message', function (data) {
//console.log('KVM browser data', data, data.toString());
this._socket.pause();
this.wsClient.send(data);
this._socket.resume();
});
this.wsBrowser.on('close', function () {
parent.parent.debug('relay', 'IPKVM: Relay browser websocket closed');
// Clean up
if (this.wsClient) {
try { this.wsClient.close(); } catch (ex) { }
if (this.wsClient.kvmport) { delete this.wsClient.kvmport.wsClient; delete this.wsClient.kvmport; }
delete this.wsClient.wsBrowser; delete this.wsClient;
}
});
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.toString());
this._socket.pause();
this.wsBrowser.send(data);
this._socket.resume();
});
reqinfo.kvmport.wsClient.on('close', function () {
parent.parent.debug('relay', 'IPKVM: Relay websocket closed');
// Clean up
if (this.wsBrowser) {
try { this.wsBrowser.close(); } catch (ex) { }
delete this.wsBrowser.wsClient; delete this.wsBrowser;
}
if (this.kvmport) { delete this.kvmport.wsClient; delete this.kvmport; }
});
reqinfo.kvmport.wsClient.on('error', function (err) {
parent.parent.debug('relay', 'IPKVM: Relay websocket error: ' + err);
});
} catch (ex) { console.log(ex); }
}
}
return obj;