Read config (#18)

* read config file

* remove homepage from package.json

config/Symphony.config

@@ -0,0 +1,3 @@
+{
+    "url": "https://foundation-dev.symphony.com"
+}

js/getConfig.js

@@ -0,0 +1,52 @@
+'use strict';
+
+const electron = require('electron');
+const app = electron.app;
+const path = require('path');
+const fs = require('fs');
+const { isDevEnv } = require('./utils.js');
+
+/**
+ * reads global configuration file: config/Symphony.config. this file is
+ * hold items (such as the start url) that are intended to be used as
+ * global (or default) values for all users running this app. for production
+ * this file is located relative to the executable - it is placed there by
+ * the installer. this makes the file easily modifable by admin (or person who
+ * installed app). for dev env, the file is read directly from packed asar file.
+ * 
+ * @return {Object} configuration parameters (e.g., url)
+ */
+function getConfig() {
+    return new Promise(function(resolve, reject) {
+        let configPath;
+        const configFile = 'config/Symphony.config';
+
+        if (isDevEnv) {
+            // for dev env, get config file from asar
+            configPath = path.join(app.getAppPath(), configFile);
+        } else {
+            // for non-dev, config file is placed by installer relative to exe.
+            // this is so the config can be easily be changed post install.
+            let execPath = path.dirname(app.getPath('exe'));
+            // for mac exec is stored in subdir, for linux/windows config
+            // dir is in the same location.
+            configPath = path.join(execPath, isMac ? '..' : '', configFile)
+        }
+
+        fs.readFile(configPath, 'utf8', function (err, data) {
+            if (err) {
+                reject('cannot open config file: ' + configPath + ', error: ' + err);
+            } else {
+                try {
+                    // data is the contents of the text file we just read
+                    let config = JSON.parse(data);
+                    resolve(config);
+                } catch(e) {
+                    reject('can not parse config file data: ' + data + ', error: ' + err);
+                }
+            }
+        });
+    });
+}
+
+module.exports = getConfig

js/main.js

@@ -4,7 +4,10 @@ const electron = require('electron');
 const packageJSON = require('../package.json');
 const menuTemplate = require('./menuTemplate.js');
 const path = require('path');
-const app = electron.app
+const app = electron.app;
+const nodeURL = require('url');
+const getConfig = require('./getConfig.js');
+const { isMac, isDevEnv, getGuid } = require('./utils.js');
 
 // Keep a global reference of the window object, if you don't, the window will
 // be closed automatically when the JavaScript object is garbage collected.
@@ -17,23 +20,14 @@ if (require('electron-squirrel-startup')) {
     return;
 }
 
-if (isDevEnv()) {
+if (isDevEnv) {
     // needed for development env because local server doesn't have cert
     app.commandLine.appendSwitch('--ignore-certificate-errors');
 }
 
-function isDevEnv() {
-    let isDev = process.env.ELECTRON_DEV ?
-        process.env.ELECTRON_DEV.trim().toLowerCase() === "true" : false;
-    return isDev;
-}
+function createMainWindow (url) {
+    let key = getGuid();
 
-function createMainWindow () {
-    let key = getWindowKey();
-
-    // note: for now, turning off node integration as this is causing failure with
-    // onelogin, jquery can not get initialized. electron's node integration
-    // conflicts on the window object.
     mainWindow = new electron.BrowserWindow({
         title: 'Symphony',
         width: 1024, height: 768,
@@ -45,9 +39,14 @@ function createMainWindow () {
         }
     });
 
-    storeWindowKey(key, mainWindow)
+    mainWindow.webContents.once('did-fail-load', function() {
+        // ToDo: show ui when failure occurs
+        console.error('failed to load window');
+    });
 
-    mainWindow.loadURL(packageJSON.homepage);
+    storeWindowKey(key, mainWindow);
+
+    mainWindow.loadURL(url);
 
     const menu = electron.Menu.buildFromTemplate(menuTemplate(app));
     electron.Menu.setApplicationMenu(menu);
@@ -58,7 +57,7 @@ function createMainWindow () {
             return;
         }
         // mac should hide window when hitting x close
-        if (process.platform === 'darwin') {
+        if (isMac) {
             mainWindow.hide();
             e.preventDefault();
         }
@@ -78,21 +77,6 @@ function createMainWindow () {
     });
 }
 
-/**
- * Generate a key (guid).
- * @return {string} guid
- */
-function getWindowKey() {
-    // generate guid:
-    // http://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript
-    function s4() {
-        return Math.floor((1 + Math.random()) * 0x10000).toString(16)
-        .substring(1);
-    }
-    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
-    s4() + '-' + s4() + s4() + s4();
-}
-
 function storeWindowKey(key, browserWin) {
     windows[key] = browserWin;
 }
@@ -162,7 +146,7 @@ electron.ipcMain.on('symphony-msg', (event, arg) => {
         let width = arg.width || 1024;
         let height = arg.height || 768;
         let title = arg.title || 'Symphony';
-        let winKey = getWindowKey();
+        let winKey = getGuid();
 
         let childWindow = new electron.BrowserWindow({
             title: title,
@@ -187,9 +171,27 @@ electron.ipcMain.on('symphony-msg', (event, arg) => {
  * initialization and is ready to create browser windows.
  * Some APIs can only be used after this event occurs.
  */
-app.on('ready', function() {
-    createMainWindow();
-});
+app.on('ready', getUrlAndOpenMainWindow);
+
+function getUrlAndOpenMainWindow() {
+    getConfig().then(function(config) {
+        let protocol = '';
+        // add https protocol if none found.
+        let parsedUrl = nodeURL.parse(config.url);
+        if (!parsedUrl.protocol) {
+            protocol = 'https';
+        }
+        var url = nodeURL.format({
+            protocol: protocol,
+            slahes: true,
+            pathname: parsedUrl.href
+        });
+        createMainWindow(url);
+    }).catch(function(err) {
+        // ToDo: show ui when failure occurs
+        console.error(err);
+    });
+}
 
 app.on('before-quit', function() {
     willQuitApp = true;
@@ -198,14 +200,14 @@ app.on('before-quit', function() {
 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') {
+    if (!isMac) {
         app.quit();
     }
 });
 
 app.on('activate', function () {
     if (mainWindow === null) {
-        createMainWindow();
+        getUrlAndOpenMainWindow();
     } else {
         mainWindow.show();
     }

js/utils.js

@@ -0,0 +1,27 @@
+'use strict';
+
+const isDevEnv = process.env.ELECTRON_DEV ?
+        process.env.ELECTRON_DEV.trim().toLowerCase() === "true" : false;
+
+const isMac = (process.platform === 'darwin');
+
+/**
+ * Generates a guid,
+ * http://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript
+ * 
+ * @return {String} guid value in string
+ */
+function getGuid() {
+    function s4() {
+        return Math.floor((1 + Math.random()) * 0x10000).toString(16)
+        .substring(1);
+    }
+    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+    s4() + '-' + s4() + s4() + s4();
+}
+
+module.exports = {
+    isDevEnv: isDevEnv,
+    isMac: isMac,
+    getGuid: getGuid
+};

package.json

@@ -12,10 +12,11 @@
     "dist-mac": "build --mac",
     "dist-win": "build --win --x64",
     "dist-win-x86": "build --win --ia32",
-    "win-unpacked": "build --win --x64 --dir",
-    "win-x86-unpacked": "build --win --ia32 --dir"
+    "unpacked-win": "build --win --x64 --dir",
+    "unpacked-win-x86": "build --win --ia32 --dir"
   },
   "build": {
+    "extraFiles": "config/Symphony.config",
     "appId": "symphony-electron-desktop",
     "mac": {
         "target": "dmg",
@@ -43,7 +44,6 @@
   "bugs": {
     "url": "https://support.symphony.com"
   },
-  "homepage": "https://foundation-dev.symphony.com",
   "devDependencies": {
     "electron": "1.5.1",
     "electron-builder": "^12.3.1",