refactor(analytics): GA analytics tracker from ENV variable, move ana…

…lytics logic into background pa Based on process.env.NODE_ENV either GA_TRACKER_DEV or GA_TRACKER_PROD is loaded from .evn file. Also moved the analytics from template appending mechanism to background page because of clashes with host site GA. More details in SO answer https://stackoverflow.com/questions/10285886/chrome-extension-adding-external-javascript-to-current-pages-html?answertab=active#tab-top Closes realreality#52
vire · Jun 25, 2017 · 7c6b6c8 · 7c6b6c8
1 parent 249e6ce
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diff --git a/README.md b/README.md
@@ -25,25 +25,33 @@ Original idea was that Real Reality will be webpage where you can see mashup of
 1. `git commit -m "my new great addition!"`
 1. `git push`
 
-Final extension structure
-```bash
-build
-├── _locales
-├── background.bundle.js
-├── contentscript.bundle.js
-├── css
-├── fonts
-├── images
-└── manifest.json
-```
 
 ### Environment variables
 
   This project supports [dotenv](https://www.npmjs.com/package/dotenv) variables, by creating a `.env` file, you can put your secrets there. All `env` variables are then available in `./config/env.js` where you can export them and use in webpack `DefinePlugin` in `webpack.conf.js`
 
+  List of currently used environment variables within project
+
+  * `GA_TRACKER_DEV` - Google Analytics TRACKER ID user in non-production builds
+  * `GA_TRACKER_PROD` - GA TRACKER ID for production
   * `GMAPS_API_KEY` - user your own please
   * `IPR_REST_API` - endpoint for real-reality
 
+
+### Building
+
+to compile a **production** version of the extension into \<project-root\>/**build** folder run 
+
+```
+yarn build
+```
+
+or if you wanna specify custom GA
+```
+GA_TRACKER_PROD=GA-XXXXX-X yarn build
+```
+
+
 Quick and dirty [source code of IPR Data Rest API Server](https://github.com/bedla/praguehacks-realreality).
 
 Main script is in **./src/js/contentscript.js**
@@ -57,7 +65,3 @@ IPR API is backed by [IPR Data Rest API Server](https://github.com/realreality/r
 [Open Society Fund Praha / Fond Otakara Motejla](http://www.otevrenadata.cz/) for their [open data](https://en.wikipedia.org/wiki/Open_data) activities (like organizing Prague Hacks hackathon and other similar events, propagation the open data idea in goverment institutions..etc.). 
 
  Samuel Simões - this extension is built on top of the scaffold [chrome-extension-webpack-boilerplate](https://github.com/samuelsimoes/chrome-extension-webpack-boilerplate)
-
-
-
-
diff --git a/config/env.js b/config/env.js
@@ -1,11 +1,14 @@
 // tiny wrapper with default env vars
-const env = require('dotenv');
+const dotenv = require('dotenv')
 
-env.load();
+dotenv.load()
+
+const env = process.env
 
 module.exports = {
-
-  PORT: (process.env.PORT || 3000),
-  GMAPS_API_KEY: process.env.GMAPS_API_KEY,
-  IPR_REST_API: (process.env.IPR_REST_API || 'https://realreality.publicstaticvoidmain.cz/rest')
-};
+  GA_TRACKER_DEV: env.GA_TRACKER_DEV,
+  GA_TRACKER_PROD: env.GA_TRACKER_PROD,
+  PORT: (env.PORT || 3000),
+  GMAPS_API_KEY: env.GMAPS_API_KEY,
+  IPR_REST_API: (env.IPR_REST_API || 'https://realreality.publicstaticvoidmain.cz/rest'),
+}
diff --git a/package.json b/package.json
@@ -5,7 +5,7 @@
   "private": true,
   "scripts": {
     "cleanup": "rm -rf build",
-    "build": "npm run cleanup && node scripts/build-manifest.js && webpack -p",
+    "build": "node scripts/build-manifest.js && webpack --env=prod -p",
     "cz": "git-cz",
     "commitmsg": "validate-commit-msg",
     "lint": "eslint -c .eslintrc ./src/",

diff --git a/scripts/webserver.js b/scripts/webserver.js
@@ -3,7 +3,7 @@ const webpack = require('webpack')
 const path = require('path')
 const WriteFilePlugin = require('write-file-webpack-plugin')
 
-const config = require('../webpack.config')
+const config = require('../webpack.config')('dev')
 const env = require('./../config/env')
 
 // setup manifest

diff --git a/src/js/background.js b/src/js/background.js
@@ -1,8 +1,18 @@
+
+const debugAnalytics = process.env.GA_DEBUG === 'enabled' ? '_debug' : ''
+const analyticsURL = `https://www.google-analytics.com/analytics${debugAnalytics}.js`
+
+;(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+})(window,document,'script', analyticsURL, 'ga')
+
+window.ga('create', process.env.GA_TRACKER_ID, 'auto')
+window.ga('set', 'checkProtocolTask', function(){ /* nothing */ })
 /**
  * Code that detects host page and switches icons in toolbar.
  */
 chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
-  console.log('request', request)
   if (request.switchIconOn) {
     chrome.browserAction.setIcon({
       path: {
@@ -12,4 +22,13 @@ chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
       tabId: sender.tab.id,
     })
   }
-})
+
+  if(request.eventType === 'EXTENSION_INIT') {
+    window.ga('send', {
+      hitType: 'pageview',
+      location: request.locationHref,
+      page: request.locationPathName,
+      title: request.documentTitle,
+    })
+  }
+})
diff --git a/src/js/contentscript.js b/src/js/contentscript.js
@@ -9,11 +9,10 @@ import { streetNamePredicate, addStyles } from './utils'
 
 import '../css/cssnormalize.scss'
 import '../css/panel.scss'
-import panelTemplate from 'html-loader!../templates/panel.html'
 
 import App from './components/App.vue'
 
-Vue.use(VueI18n) 
+Vue.use(VueI18n)
 RR.logInfo('contentscript loaded')
 
 chrome.runtime.sendMessage({ 'switchIconOn': true })
@@ -25,7 +24,7 @@ const initVueTranslations = () => {
       const [appLanguage] = languages
       RR.logDebug('Detected accepted languages: ', languages)
       RR.logInfo('Selected app language: ', appLanguage)
-        
+
       const vueI18n = new VueI18n({
         locale: appLanguage,
         fallbackLocale: 'en',
@@ -43,11 +42,15 @@ const initVueTranslations = () => {
 
 const loadPanel = function(address) {
   RR.logDebug('Injecting panel (template) to page')
-  // html from panelTemplate holds the entry-point `#reality-panel-root`
-  $('body').append(panelTemplate)
-
   RR.logDebug('Initializing view (replacing values in panel.html template)')
-
+  $('body').append('<div id="reality-panel-root"></div>')
+  chrome.runtime.sendMessage({
+    eventType: 'EXTENSION_INIT',
+    documentTitle: document.title,
+    locationHost: window.location.host,
+    locationHref: window.location.href,
+    locationPathName: window.location.pathname,
+  })
   initVueTranslations()
     .then((i18n) => {
       Vue.config.devtools = true // does not work in extension

diff --git a/src/manifest.json b/src/manifest.json
@@ -33,6 +33,7 @@
         "*://reality.idnes.cz/*"
       ],
       "js": [
+        "vendor.bundle.js",
         "contentscript.bundle.js"
       ],
       "run_at": "document_end",
@@ -48,7 +49,10 @@
     "default_popup": "popup.html"
   },
   "background": {
-    "scripts": ["background.bundle.js"]
+    "scripts": [
+      "vendor.bundle.js",
+      "background.bundle.js"
+    ]
   },
-  "content_security_policy": "script-src 'self' https://maps.googleapis.com; 'unsafe-eval' http://localhost:%PORT%; object-src 'self'"
+  "content_security_policy": "script-src 'self' https://maps.googleapis.com https://www.google-analytics.com http://localhost:%PORT%; object-src 'self'"
 }
diff --git a/src/templates/panel.html b/src/templates/panel.html
diff --git a/webpack.config.js b/webpack.config.js
@@ -10,74 +10,91 @@ const webpack = require('webpack')
 const env = require('./config/env')
 const basePath = fileName => path.join(__dirname, 'src', 'js', fileName)
 
-module.exports = {
-  entry: {
-    background: basePath('background.js'),
-    contentscript: basePath('contentscript.js'),
-    popup: basePath('popup.js'),
-  },
-  output: {
-    path: path.join(__dirname, 'build'),
-    filename: '[name].bundle.js',
-  },
-  module: {
-    rules: [
-      {
-        test: /\.vue$/,
-        loader: 'vue-loader',
-      },
-      {
-        enforce: 'pre',
-        test: /\.js$/,
-        exclude: /node_modules/,
-        loader: 'eslint-loader',
-      },
-      {
-        test: /\.js$/,
-        exclude: /node_modules/,
-        loader: 'babel-loader',
-      },
-      {
-        test: /\.scss$/,
-        loader: ExtractTextPlugin.extract({
-          fallback: 'style-loader',
-          use: ['css-loader', 'postcss-loader'],
-        }),
-      },
+module.exports = (profile) => {
+  const isProd = profile === 'prod'
+  const GA_TRACKER_ID = isProd ? env.GA_TRACKER_PROD : env.GA_TRACKER_DEV
+
+  return {
+    entry: {
+      background: basePath('background.js'),
+      contentscript: basePath('contentscript.js'),
+      popup: basePath('popup.js'),
+    },
+    output: {
+      path: path.join(__dirname, 'build'),
+      filename: '[name].bundle.js',
+    },
+    module: {
+      rules: [
+        {
+          test: /\.vue$/,
+          loader: 'vue-loader',
+        },
+        {
+          enforce: 'pre',
+          test: /\.js$/,
+          exclude: /node_modules/,
+          loader: 'eslint-loader',
+        },
+        {
+          test: /\.js$/,
+          exclude: /node_modules/,
+          loader: 'babel-loader',
+        },
+        {
+          test: /\.scss$/,
+          loader: ExtractTextPlugin.extract({
+            fallback: 'style-loader',
+            use: ['css-loader', 'postcss-loader'],
+          }),
+        },
+      ],
+    },
+    plugins: [
+      new ProgressBarPlugin(),
+      new webpack.LoaderOptionsPlugin({
+        options: {
+          postcss: [autoprefixer, precss],
+          excludeEntriesToHotReload: ['contentscript'], // a non-standard webpack opt, see usage in `./scripts/webserver.js`
+        },
+      }),
+      // expose and write the allowed env vars on the compiled bundle
+      new webpack.DefinePlugin({
+        'process.env': {
+          GMAPS_API_KEY: JSON.stringify(env.GMAPS_API_KEY),
+          GA_DEBUG: JSON.stringify(isProd ? 'disabled': 'enabled'),
+          GA_TRACKER_ID: JSON.stringify(GA_TRACKER_ID),
+          IPR_REST_API: JSON.stringify(env.IPR_REST_API),
+        },
+      }),
+      new HtmlWebpackPlugin({
+        template: path.join(__dirname, 'src', 'popup.html'),
+        filename: 'popup.html',
+        chunks: ['popup'],
+      }),
+      new CopyWebpackPlugin([
+        { from: path.join(__dirname, 'src/_locales'), to: '_locales'},
+        { from: path.join(__dirname, 'src/images'), to: 'images'},
+        { from: path.join(__dirname, 'node_modules/font-awesome/css/font-awesome.css'), to: 'css'},
+        { from: path.join(__dirname, 'node_modules/font-awesome/fonts'), to: 'fonts'},
+      ]),
+      new ExtractTextPlugin('./css/panel.css'),
+      new webpack.LoaderOptionsPlugin({
+        debug: false,
+        minimize: true,
+      }),
+      new webpack.optimize.CommonsChunkPlugin({
+        name: 'vendor',
+        minChunks: function(module){
+          return module.context && module.context.indexOf('node_modules') !== -1
+        },
+      }),
+
     ],
-  },
-  plugins: [
-    new ProgressBarPlugin(),
-    new webpack.LoaderOptionsPlugin({
-      options: {
-        postcss: [autoprefixer, precss],
-        excludeEntriesToHotReload: ['contentscript'], // a non-standard webpack opt, see usage in `./scripts/webserver.js`
-      },
-    }),
-    // expose and write the allowed env vars on the compiled bundle
-    new webpack.DefinePlugin({
-      'process.env': {
-        NODE_ENV: JSON.stringify(process.env.NODE_ENV || 'development'),
-        GMAPS_API_KEY: JSON.stringify(env.GMAPS_API_KEY),
-        IPR_REST_API: JSON.stringify(env.IPR_REST_API),
+    resolve: {
+      alias: {
+        'vue$': 'vue/dist/vue.esm.js',
       },
-    }),
-    new HtmlWebpackPlugin({
-      template: path.join(__dirname, 'src', 'popup.html'),
-      filename: 'popup.html',
-      chunks: ['popup'],
-    }),
-    new CopyWebpackPlugin([
-      { from: path.join(__dirname, 'src/_locales'), to: '_locales'},
-      { from: path.join(__dirname, 'src/images'), to: 'images'},
-      { from: path.join(__dirname, 'node_modules/font-awesome/css/font-awesome.css'), to: 'css'},
-      { from: path.join(__dirname, 'node_modules/font-awesome/fonts'), to: 'fonts'},
-    ]),
-    new ExtractTextPlugin('./css/panel.css'),
-  ],
-  resolve: {
-    alias: {
-      'vue$': 'vue/dist/vue.common.js',
     },
-  },
+  }
 }
diff --git a/yarn.lock b/yarn.lock
@@ -3596,6 +3596,10 @@ load-json-file@^1.0.0:
     pinkie-promise "^2.0.0"
     strip-bom "^2.0.0"
 
+load-script@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/load-script/-/load-script-1.0.0.tgz#0491939e0bee5643ee494a7e3da3d2bac70c6ca4"
+
 loader-fs-cache@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/loader-fs-cache/-/loader-fs-cache-1.0.1.tgz#56e0bf08bd9708b26a765b68509840c8dec9fdbc"
@@ -5997,6 +6001,12 @@ void-elements@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
 
+vue-analytics@4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/vue-analytics/-/vue-analytics-4.1.2.tgz#ea8be43810e3505c668f9b114fa5451baa435877"
+  dependencies:
+    load-script "^1.0.0"
+
 vue-class-component@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-5.0.1.tgz#feda06c3da266cee9064e224ba491e089923dce8"