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main.js
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main.js
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'use strict';
const pkg = require('./package.json');
let options;
if (pkg.hasOwnProperty("NRelectron")) { options = pkg["NRelectron"] }
let packages;
if (pkg.hasOwnProperty("dependencies")) { packages = pkg["dependencies"] }
// Some settings you can edit if you don't set them in package.json
//console.log(options)
const editable = options.editable || false; // set this to false to create a run only application - no editor/no console
const allowLoadSave = options.allowLoadSave || false; // set to true to allow import and export of flow file
let showMap = options.showMap || false; // set to true to add Worldmap to the menu
const kioskMode = options.kioskMode || false; // set to true to start in kiosk mode
const addNodes = options.addNodes || false; // set to false to block installing extra nodes
let flowfile = options.flowFile || 'electronflow.json'; // default Flows file name - loaded at start
const urldash = "/ui/#/0"; // url for the dashboard page
const urledit = "/red"; // url for the editor page
const urlconsole = "/console.htm"; // url for the console page
const urlmap = "/worldmap"; // url for the worldmap
const nrIcon = "nodered.png" // Icon for the app in root dir (usually 256x256)
let urlStart = urldash; // Start on this page
if (!packages.hasOwnProperty("node-red-dashboard")) { urlStart = urledit; }
if (options.start.toLowerCase() === "editor") { urlStart = urledit; }
if (options.start.toLowerCase() === "map") { urlStart = urlmap; }
if (!packages.hasOwnProperty("node-red-contrib-web-worldmap")) { showMap = false; }
// TCP port to use
//const listenPort = "18880"; // fix it if you like
const listenPort = parseInt(Math.random()*16383+49152) // or random ephemeral port
const os = require('os');
const fs = require('fs');
const url = require('url');
const path = require('path');
const http = require('http');
const express = require("express");
const electron = require('electron');
const isDev = require('electron-is-dev');
const Store = require('electron-store');
const store = new Store();
const {app, Menu, TouchBar} = electron;
const ipc = electron.ipcMain;
const dialog = electron.dialog;
const BrowserWindow = electron.BrowserWindow;
const Tray = electron.Tray;
const { TouchBarButton, TouchBarSpacer } = TouchBar;
var RED = require("node-red");
var red_app = express();
// Add a simple route for static content served from 'public'
red_app.use("/",express.static("web"));
//red_app.use(express.static(__dirname +"/public"));
// Create a server
var server = http.createServer(red_app);
// Setup user directory and flowfile (if editable)
var userdir = __dirname;
if (editable === true) {
// if running as raw electron use the current directory (mainly for dev)
if (process.argv[1] && (process.argv[1] === "main.js")) {
userdir = __dirname;
if ((process.argv.length > 2) && ((process.argv[process.argv.length-1].indexOf(".json") > -1)||(process.argv[process.argv.length-1].indexOf(".flow") > -1))) {
if (path.isAbsolute(process.argv[process.argv.length-1])) {
flowfile = process.argv[process.argv.length-1];
}
else {
flowfile = path.join(process.cwd(),process.argv[process.argv.length-1]);
}
store.set("electronFlow",flowfile)
}
else { flowfile = path.join(userdir,flowfile); }
}
else { // We set the user directory to be in the users home directory...
console.log("ARG",process.argv)
userdir = os.homedir() + '/.node-red';
if (!fs.existsSync(userdir)) {
fs.mkdirSync(userdir);
}
if ((process.argv.length > 1) && ((process.argv[process.argv.length-1].indexOf(".json") > -1) || (process.argv[process.argv.length-1].indexOf(".flow") > -1))) {
if (path.isAbsolute(process.argv[process.argv.length-1])) {
flowfile = process.argv[process.argv.length-1];
}
else {
flowfile = path.join(process.cwd(),process.argv[process.argv.length-1]);
}
store.set("electronFlow",flowfile)
}
else {
if (!fs.existsSync(userdir+"/"+flowfile)) {
fs.writeFileSync(userdir+"/"+flowfile, fs.readFileSync(__dirname+"/"+flowfile));
}
let credFile = flowfile.replace(".json","_cred.json");
if (fs.existsSync(__dirname+"/"+credFile) && !fs.existsSync(userdir+"/"+credFile)) {
fs.writeFileSync(userdir+"/"+credFile, fs.readFileSync(__dirname+"/"+credFile));
}
flowfile = path.join(userdir,flowfile);
}
}
}
else { store.clear(); }
flowfile = store.get('electronFlow',flowfile);
var myFlow;
try { myFlow = fs.readFileSync(flowfile).toString() }
catch(e) { myFlow = []; }
if (urlStart == urlmap && myFlow.indexOf("worldmap") == -1) { urlStart = urledit; }
if (urlStart == urldash && myFlow.indexOf("ui_base") == -1) { urlStart = urledit; }
myFlow = null;
// console.log("CWD",process.cwd());
// console.log("DIR",__dirname);
// console.log("UserDir :",userdir);
// console.log("PORT",listenPort);
console.log("Store",app.getPath('userData'))
console.log("FlowFile :",flowfile);
// Keep a global reference of the window objects, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow;
let conWindow;
let tray;
let logBuffer = [];
let logLength = 250; // No. of lines of console log to keep.
const levels = [ "", "fatal", "error", "warn", "info", "debug", "trace" ];
ipc.on('clearLogBuffer', function() { logBuffer = []; });
// Create the settings object - see default settings.js file for other options
var settings = {
uiHost: "localhost", // only allow local connections, remove if you want to allow external access
uiPort: listenPort,
httpAdminRoot: "/red", // set to false to disable editor and deploy
httpNodeRoot: "/",
userDir: userdir,
flowFile: flowfile,
flowFilePretty: true,
autoInstallModules: true,
editorTheme: {
projects:{ enabled:false },
header: { title: options.productName },
palette: { editable:addNodes }
}, // enable projects feature
functionGlobalContext: { }, // enables global context - add extras ehre if you need them
logging: {
websock: {
level: 'info',
metrics: false,
handler: function() {
return function(msg) {
if (editable) { // No logging if not editable
var ts = (new Date(msg.timestamp)).toISOString();
ts = ts.replace("Z"," ").replace("T"," ");
var line = "";
if (msg.type && msg.id) {
line = ts+" : ["+levels[msg.level/10]+"] ["+msg.type+":"+msg.id+"] "+msg.msg;
}
else {
line = ts+" : ["+levels[msg.level/10]+"] "+msg.msg;
}
logBuffer.push(line);
if (conWindow) { conWindow.webContents.send('debugMsg', line); }
if (logBuffer.length > logLength) { logBuffer.shift(); }
}
}
}
}
}
};
if (!editable) {
settings.httpAdminRoot = false;
settings.readOnly = true;
}
// Initialise the runtime with a server and settings
RED.init(server,settings);
// Serve the editor UI from /red (if editable)
if (settings.httpAdminRoot !== false) {
red_app.use(settings.httpAdminRoot,RED.httpAdmin);
}
// Serve the http nodes UI from /
red_app.use(settings.httpNodeRoot,RED.httpNode);
// Create the Application's main menu
var template = [{
label: "View",
submenu: [
{ label: 'Open Flow',
accelerator: "Shift+CmdOrCtrl+O",
click() { openFlow(); }
},
{ label: 'Save Flow As',
accelerator: "Shift+CmdOrCtrl+S",
click() { saveFlow(); }
},
{ type: 'separator' },
{ label: 'Console',
accelerator: "Shift+CmdOrCtrl+C",
click() { createConsole(); }
},
{ label: 'Dashboard',
accelerator: "Shift+CmdOrCtrl+D",
click() { mainWindow.loadURL("http://localhost:"+listenPort+urldash); }
},
{ label: 'Editor',
accelerator: "Shift+CmdOrCtrl+E",
click() { mainWindow.loadURL("http://localhost:"+listenPort+urledit); }
},
{ label: 'Worldmap',
accelerator: "Shift+CmdOrCtrl+M",
click() { mainWindow.loadURL("http://localhost:"+listenPort+urlmap); }
},
{ type: 'separator' },
{ type: 'separator' },
{ label: 'Documentation',
click() { electron.shell.openExternal('https://nodered.org/docs') }
},
{ label: 'Flows and Nodes',
click() { electron.shell.openExternal('https://flows.nodered.org') }
},
{ label: 'Discourse Forum',
click() { electron.shell.openExternal('https://discourse.nodered.org/') }
},
{ type: 'separator' },
{ role: 'togglefullscreen' },
{ role: 'quit' }
]
}];
if (!showMap) { template[0].submenu.splice(6,1); }
if (!editable) {
template[0].submenu.splice(3,1);
template[0].submenu.splice(4,1);
}
if (!allowLoadSave) { template[0].submenu.splice(0,2); }
// Top and tail menu on Mac
if (process.platform === 'darwin') {
template[0].submenu.unshift({ type: 'separator' });
template[0].submenu.unshift({ label: "About "+options.productName||"Node-RED Electron", selector: "orderFrontStandardAboutPanel:" });
template[0].submenu.unshift({ type: 'separator' });
template[0].submenu.unshift({ type: 'separator' });
}
// Add Dev menu if in dev mode
if (isDev) {
template.push({
label: 'Development',
submenu: [
{ label: 'Reload', accelerator: 'CmdOrCtrl+R',
click (item, focusedWindow) {
if (focusedWindow) focusedWindow.reload()
}
},
{ label: 'Toggle Developer Tools',
accelerator: process.platform === 'darwin' ? 'Alt+Command+I' : 'Ctrl+Shift+I',
click (item, focusedWindow) {
if (focusedWindow) focusedWindow.webContents.toggleDevTools()
}
}
]
})
}
function saveFlow() {
const file_path = dialog.showSaveDialogSync({
title:"Save Flow As",
filters:[{ name:'JSON', extensions:['json','flow'] }],
properties: ["showHiddenFiles"],
defaultPath: flowfile,
buttonLabel: "Save Flow"
});
if (file_path) {
var flo = JSON.stringify(RED.nodes.getFlows().flows, null , 2);
fs.writeFile(file_path, flo, function(err) {
if (err) { dialog.showErrorBox('Error', err); }
else {
store.set("electronFlow",file_path);
dialog.showMessageBoxSync({
icon: nrIcon,
message:"Flow file saved as\n\n"+file_path,
buttons: ["OK"]
});
app.relaunch();
app.exit();
}
});
}
}
function openFlow() {
const fileNames = dialog.showOpenDialogSync({
title:"Load Flow File",
filters:[{ name:'JSON', extensions:['json','flow'] }],
properties: ["openFile","showHiddenFiles"],
defaultPath: flowfile,
buttonLabel: "Load Flow"
});
if (fileNames && fileNames.length > 0) {
fs.readFile(fileNames[0], 'utf-8', function (err, data) {
try {
var flo = JSON.parse(data);
if (Array.isArray(flo) && (flo.length > 0)) {
//RED.nodes.setFlows(flo,"full");
store.set("electronFlow",fileNames[0]);
app.relaunch();
app.exit();
}
else {
dialog.showErrorBox("Error", "Failed to parse flow file.\n\n "+fileNames[0]+".\n\nAre you sure it's a flow file ?");
}
}
catch(e) {
dialog.showErrorBox("Error", "Failed to load flow file.\n\n "+fileNames[0]);
}
});
}
}
// Create the console log window
function createConsole() {
if (conWindow) { conWindow.show(); return; }
// Create the hidden console window
conWindow = new BrowserWindow({
title: "Node-RED Console",
width: 800,
height: 600,
icon: path.join(__dirname, nrIcon),
autoHideMenuBar: true,
// titleBarStyle: "hidden",
webPreferences: {
nodeIntegration: true
}
});
conWindow.loadURL(url.format({
pathname: path.join(__dirname, urlconsole),
protocol: 'file:',
slashes: true
}))
conWindow.webContents.on('did-finish-load', () => {
conWindow.webContents.send('logBuff', logBuffer);
});
conWindow.on('closed', () => {
conWindow = null;
});
//conWindow.webContents.openDevTools();
const touchButton5 = new TouchBarButton({
label: 'Clear Log',
backgroundColor: '#640000',
click: () => { logBuffer = []; conWindow.webContents.send('logBuff', logBuffer); }
});
const consoleTouchBar = new TouchBar({
items: [ touchButton5 ]
});
conWindow.setTouchBar(consoleTouchBar);
}
// Create the main browser window
function createWindow() {
mainWindow = new BrowserWindow({
title: "Node-RED",
width: 1024,
height: 768,
icon: path.join(__dirname, nrIcon),
fullscreenable: true,
autoHideMenuBar: false,
// titleBarStyle: "hidden",
kiosk: kioskMode,
webPreferences: {
nodeIntegration: false
}
});
const menu = Menu.buildFromTemplate(template);
Menu.setApplicationMenu(menu);
if (process.platform !== 'darwin') { mainWindow.setAutoHideMenuBar(true); }
mainWindow.loadURL(`file://${__dirname}/load.html`);
mainWindow.webContents.on('did-get-response-details', function(event, status, newURL, originalURL, httpResponseCode) {
if ((httpResponseCode == 404) && (newURL == ("http://localhost:"+listenPort+urlStart))) {
setTimeout(mainWindow.webContents.reload, 250);
}
});
// mainWindow.webContents.on('did-finish-load', (a) => {
// console.log("FINISHED LOAD",a);
// });
mainWindow.webContents.on("new-window", function(e, url, frameName, disposition, option) {
// if a child window opens... modify any other options such as width/height, etc
// in this case make the child overlap the parent exactly...
//console.log("NEW WINDOW",url);
var w = mainWindow.getBounds();
option.x = w.x;
option.y = w.y;
option.width = w.width;
option.height = w.height;
})
mainWindow.on('close', function(e) {
const choice = require('electron').dialog.showMessageBoxSync(this, {
type: 'question',
icon: nrIcon,
buttons: ['Yes', 'No'],
title: 'Confirm',
message: 'Are you sure you want to quit?'
});
if (choice === 1) {
e.preventDefault();
}
});
mainWindow.on('closed', () => {
mainWindow = null;
});
// If on a Mac add some touchbar buttons...
if (process.platform === 'darwin') {
const touchButton1 = new TouchBarButton({
label: 'Dashboard',
backgroundColor: '#640000',
click: () => { mainWindow.loadURL("http://localhost:"+listenPort+urldash); }
});
const touchButton2 = new TouchBarButton({
label: 'Editor',
backgroundColor: '#640000',
click: () => { mainWindow.loadURL("http://localhost:"+listenPort+urledit); }
});
const touchButton3 = new TouchBarButton({
label: 'Map',
backgroundColor: '#640000',
click: () => { mainWindow.loadURL("http://localhost:"+listenPort+urlmap); }
});
const touchButton4 = new TouchBarButton({
label: 'Console',
backgroundColor: '#640000',
click: () => { createConsole(); }
});
var items = [ touchButton1 ];
if (editable) { items.push(touchButton2) }
if (showMap) { items.push(touchButton3) }
if (editable) {
items.push(new TouchBarSpacer({ size: 'flexible' }));
items.push(touchButton4);
}
// Only bother to add buttons if more than one
if (items.length != 1) {
const mainTouchBar = new TouchBar({ items: items });
mainWindow.setTouchBar(mainTouchBar);
}
}
// Start the app full screen
//mainWindow.setFullScreen(true)
// Open the DevTools at start
//mainWindow.webContents.openDevTools();
}
// Create the tray icon and context menu
function createTray() {
tray = new Tray(path.join(__dirname, "nrtray.png"));
const contextMenu = Menu.buildFromTemplate([
{
label: 'Show',
click: function() {
mainWindow.show();
}
},
{
label: 'Quit',
click: function() {
app.quit();
}
}
]);
tray.setToolTip('Node-RED Electron application.')
tray.setContextMenu(contextMenu);
}
// Called when Electron has finished initialization and is ready to create browser windows.
app.on('ready', () => {
createTray()
createWindow()
})
// Quit when all windows are closed.
app.on('window-all-closed', function () {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') { app.quit(); }
});
app.on('activate', function() {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (mainWindow === null) {
createWindow();
mainWindow.loadURL("http://localhost:"+listenPort+urlStart);
}
});
if (process.platform === 'darwin') {
app.setAboutPanelOptions({
applicationVersion: pkg.version,
version: pkg.dependencies["node-red"],
copyright: "Copyright © 2020 "+pkg.author.name,
credits: "Node-RED and other components are copyright the JS Foundation and other contributors."
});
// Don't show in the dock bar if you like
//app.dock.hide();
}
// Start the Node-RED runtime, then load the inital dashboard page
RED.start().then(function() {
server.listen(listenPort,"localhost",function() {
mainWindow.loadURL("http://localhost:"+listenPort+urlStart);
});
});