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Started work on IP-KVM/Power relay thru agent.

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Ylian Saint-Hilaire 2022-04-18 15:48:16 -07:00
parent 2a2e0038c1
commit aa514534c4
1 changed files with 113 additions and 3 deletions
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116
meshipkvm.js
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@ -67,6 +67,7 @@ function CreateIPKVMManager(parent) {
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;
@ -76,6 +77,7 @@ function CreateIPKVMManager(parent) {
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;
@ -774,7 +776,14 @@ function CreateWebPowerSwitch(parent, hostname, port, username, password) {
obj.start = function () {
if (obj.started) return;
obj.started = true;
if (obj.state == 0) connect();
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 () {
@ -783,6 +792,7 @@ function CreateWebPowerSwitch(parent, hostname, port, username, password) {
if (retryTimer != null) { clearTimeout(retryTimer); retryTimer = null; }
setState(0);
obj.ports = [];
if (obj.router) { obj.router.stop(); delete obj.router; }
}
function setState(newState) {
@ -856,8 +866,8 @@ function CreateWebPowerSwitch(parent, hostname, port, username, password) {
var rdata = [];
const options = {
hostname: hostname,
port: port,
hostname: obj.router ? 'localhost' : hostname,
port: obj.router ? obj.router.tcpServerPort : port,
rejectUnauthorized: false,
checkServerIdentity: onCheckServerIdentity,
path: url,
@ -945,4 +955,104 @@ function CreateWebPowerSwitch(parent, hostname, port, username, password) {
}
// 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.close(); } catch (ex) { }
if (tcpSocket.relaySocket) { try { tcpSocket.relaySocket.close(); } catch (ex) { } }
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.tcpServer.on('connection', function (socket) {
tcpSockets[socket] = 1;
socket.pause();
socket.on('data', function (chunk) { // Make sure to handle flow control.
console.log('<-- ' + chunk);
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 () { close(this); });
socket.on('error', function (err) { close(this); });
// Encode the device relay cookie. Note that there si no userid in this cookie.
const domainid = obj.nodeid.split('/')[1];
const cookie = parent.parent.encodeCookie({ 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&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.
console.log('--> ' + data);
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
console.log('ERR', data);
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 () { 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;