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100 | -------------------------------------------------------------------------------- /routes/all.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Copyright 2015 Google Inc. All rights reserved. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | var express = require('express'); 18 | var router = express.Router(); 19 | var fs = require('fs'); 20 | var xml2js = require('xml2js'); 21 | var xmlParser = new xml2js.Parser(); 22 | var swPrecache = require('sw-precache'); 23 | var fs = require('fs'); 24 | var path = require('path'); 25 | 26 | // Read the server's configuration from a local JSON file. 27 | // Allow for overrides from server environment variables. 28 | var serverConfig = JSON.parse(fs.readFileSync(path.join(__dirname, 29 | '/../config.json'), 'utf8')); 30 | 31 | if ('AMP_MODE' in process.env) { 32 | serverConfig.ampMode = process.env.AMP_MODE; 33 | } 34 | 35 | if ('RENDER_MODE' in process.env) { 36 | serverConfig.renderMode = process.env.RENDER_MODE; 37 | } 38 | 39 | if ('UPDATE_MODE' in process.env) { 40 | serverConfig.updateMode = process.env.UPDATE_MODE; 41 | } 42 | 43 | // Google Site Verification is necessary for some Google tools such as 44 | // Search Console. For convenience this is configurable. 45 | if ('GOOGLE_SITE_VERIFICATION_TOKEN' in process.env) { 46 | serverConfig.googleSiteVerificationToken = 47 | process.env.GOOGLE_SITE_VERIFICATION_TOKEN; 48 | } 49 | 50 | console.log('Server Configuration:', serverConfig); 51 | 52 | // Based on the render mode we use a different sw-precache configuration file 53 | // to generate the Service Worker. 54 | var swPrecacheConfig = require('./../sw-precache-config-' + 55 | serverConfig.renderMode + '.js'); 56 | swPrecache.write(path.join(__dirname, 57 | '/../public/generated-service-worker.js'), swPrecacheConfig, 58 | function(err) { 59 | if (err) console.log(err); 60 | }); 61 | 62 | // Cache the CSS in memory to embed into AMP documents where necessary: 63 | var globalCSS = ''; 64 | 65 | fs.readFile(path.join(__dirname, '/../public/stylesheets/style.css'), 66 | function(err, data) { 67 | if (err) console.log(err); 68 | 69 | globalCSS = data; 70 | console.log('CSS preloaded for AMP requests.'); 71 | }); 72 | 73 | function getPath(url) { 74 | return url.substring(0, url.lastIndexOf('.')); 75 | } 76 | 77 | function renderPage(req, res, next, templateData) { 78 | // SSL or bust! 79 | var siteUrl = 'https://' + req.get('host'); 80 | 81 | var typeRequest = req.params.typeRequest || 'html'; 82 | 83 | // 84 | if (typeRequest == 'amp' && serverConfig.ampMode != 'disabled') { 85 | // CSS in AMP must be embedded 86 | templateData.ampCSS = globalCSS; 87 | 88 | templateData.ampRequested = true; 89 | templateData.altUrl = getPath(req.path); 90 | templateData.canonicalUrl = siteUrl + templateData.page.canonical; 91 | templateData.serviceWorkerUrl = siteUrl + '/generated-service-worker.js'; 92 | } else { 93 | templateData.ampRequested = false; 94 | templateData.altUrl = getPath(req.path) + '.amp'; 95 | templateData.canonicalUrl = siteUrl + templateData.page.canonical; 96 | templateData.ampUrl = siteUrl + templateData.page.canonical + '.amp'; 97 | } 98 | 99 | // Attach the server config 100 | templateData.serverConfig = serverConfig; 101 | templateData.siteUrl = siteUrl; 102 | templateData.ampEnabled = (serverConfig.ampMode == 'enabled'); 103 | 104 | // If the request is for JSON then don't render the content in 105 | // the HTML template 106 | if (typeRequest == 'json') 107 | { 108 | res.send(JSON.stringify(templateData)); 109 | } else { 110 | res.render('content', templateData); 111 | } 112 | } 113 | 114 | // Render 404 page 115 | function render404(req, res, next) { 116 | res.status(404); 117 | 118 | renderPage(req, res, next, { 119 | page: { 120 | title: 'Page not found', 121 | canonical: 'http://localhost/', 122 | content: 'Page could not be found.' 123 | } 124 | }); 125 | } 126 | 127 | // Route for all content page requests 128 | router.get(['/(.:typeRequest)?', '/content/:id.:typeRequest?'], 129 | function(req, res, next) { 130 | // Specific content page requested, defaults to index 131 | var contentId = req.params.id || 'index'; 132 | 133 | // Specific content page requested, accepts 'json' or 'html', defaults to html 134 | var typeRequest = req.params.typeRequest || 'html'; 135 | 136 | console.log('Content page request, id:', contentId, '& type:', typeRequest); 137 | 138 | // If the server is set to client mode and the request is for the HTML 139 | // payload then we serve back the empty App Shell. 140 | if (serverConfig.renderMode == 'client' && typeRequest == 'html') { 141 | renderPage(req, res, next, { 142 | page: {} 143 | }); 144 | return; 145 | } 146 | 147 | // Find the conten XML file: 148 | var contentFilePath = path.join(__dirname, 149 | '/../content/' + contentId + '.xml'); 150 | 151 | fs.readFile(contentFilePath, function(err, data) { 152 | if (err) return render404(req, res, next); 153 | 154 | // XML content extraction for templating 155 | xmlParser.parseString(data, function (err, result) { 156 | if (err) return render404(req, res, next); 157 | 158 | // Map the XML content 159 | var templateData = { 160 | page: { 161 | title: result.document.title[0], 162 | canonical: result.document.canonical[0], 163 | content: result.document.content[0], 164 | description: result.document.description[0], 165 | metaImage: result.document.thumbnailPath[0], 166 | thumbnailPath: result.document.thumbnailPath[0], 167 | thumbnailWidth: result.document.thumbnailWidth[0], 168 | thumbnailHeight: result.document.thumbnailHeight[0], 169 | copyright: result.document.copyright[0] 170 | } 171 | }; 172 | 173 | // Render the page: 174 | renderPage(req, res, next, templateData); 175 | }); 176 | }); 177 | }); 178 | 179 | // Render robots.txt template 180 | router.get('/robots.txt', function(req, res, next) { 181 | res.render('robots', {}); 182 | }) 183 | 184 | // Render manifest.json template 185 | router.get('/manifest.json', function(req, res, next) { 186 | res.render('manifest', {}); 187 | }) 188 | 189 | // Render the content template with empty data to act as the 'App Shell' 190 | router.get('/app-shell', function(req, res, next) { 191 | renderPage(req, res, next, { 192 | page: {} 193 | }); 194 | }) 195 | 196 | // Render the content template with offline feedback to the user 197 | router.get('/offline', function(req, res, next) { 198 | renderPage(req, res, next, { 199 | page: { 200 | title: 'Offline', 201 | content: 'You are offline.' 202 | } 203 | }); 204 | }) 205 | 206 | module.exports = router; 207 | -------------------------------------------------------------------------------- /public/javascripts/core.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Copyright 2015 Google Inc. All rights reserved. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | var serverConfig = serverConfig || {}; 18 | 19 | var pwaDemo = { 20 | /** @param {string} url */ 21 | updatePageContent: function(url) { 22 | switch(serverConfig.updateMode) { 23 | case 'disabled': 24 | console.log('Dynamic content update attempted but updateMode is off.'); 25 | break; 26 | case 'json': 27 | fetch(url + '.json').then(function(response) { 28 | return response.text(); 29 | }).then(function(data) { 30 | pwaDemo.processJSON(JSON.parse(data)); 31 | }).catch(function(error) { 32 | console.log('Fetch error: ', error); 33 | 34 | pwaDemo.showOfflinePage(); 35 | }) 36 | break; 37 | case 'html': 38 | fetch(url).then(function(response) { 39 | return response.text(); 40 | }).then(function(data) { 41 | pwaDemo.processHTML(data); 42 | }).catch(function(error) { 43 | console.log('Fetch error: ', error); 44 | 45 | pwaDemo.showOfflinePage(); 46 | }) 47 | break; 48 | } 49 | }, 50 | // Processes raw HTML content from the server into the same JSON format 51 | // that is otherwise delivered from the server when updateMode is set to 52 | // JSON. Then immediately the processJSON function is called to finish 53 | // the work. 54 | /** @param {string} rawHTML */ 55 | processHTML: function(rawHTML) { 56 | console.log('Updating page with HTML: ', rawHTML); 57 | 58 | var tempDom = document.createElement('tempDom'); 59 | tempDom.innerHTML = rawHTML; 60 | 61 | var contentTag = tempDom.querySelector('#content'); 62 | var contentHTML = contentTag.innerHTML; 63 | 64 | var schemaTag = tempDom.querySelector('#schema-data'); 65 | if (schemaTag == null) { 66 | throw "HTML missing Schema Markup"; 67 | } 68 | 69 | var schemaData = JSON.parse(schemaTag.text); 70 | 71 | var titleTag = tempDom.querySelector('title'); 72 | if (titleTag == null) throw "Title tag is missing"; 73 | 74 | var canonicalTag = tempDom.querySelector('link[rel=canonical]'); 75 | if (canonicalTag == null) throw "Canonical tag is missing"; 76 | 77 | var preparedJSON = { 78 | page: { 79 | title: titleTag.text, 80 | canonical: canonicalTag.text, 81 | content: contentHTML, 82 | description: schemaData.description, 83 | metaImage: schemaData.image.url, 84 | thumbnailPath: schemaData.image.url, 85 | thumbnailWidth: schemaData.image.width, 86 | thumbnailHeight: schemaData.image.height, 87 | copyright: '' 88 | }, 89 | siteUrl: '' 90 | } 91 | 92 | pwaDemo.processJSON(preparedJSON); 93 | }, 94 | // Reads the JSON from the server (or from the client processed HTML) 95 | /** @param {!Object} jsonData */ 96 | processJSON: function(jsonData) { 97 | console.log('Updating page with JSON: ', jsonData); 98 | 99 | var canonical = window.location.toString(); 100 | var contentTag = document.querySelector('#content'); 101 | 102 | contentTag.innerHTML = 'content' in jsonData.page ? 103 | jsonData.page.content : ''; 104 | 105 | var newSchemaMeta = { 106 | '@context': 'http://schema.org', 107 | '@type': 'NewsArticle', 108 | 'mainEntityOfPage': { 109 | '@type': 'WebPage', 110 | '@id': 'https://google.com/article' 111 | }, 112 | 'headline': jsonData.page.title, 113 | 'image': { 114 | '@type': 'ImageObject', 115 | 'url': jsonData.siteUrl + jsonData.page.thumbnailPath, 116 | 'width': jsonData.page.thumbnailWidth, 117 | 'height': jsonData.page.thumbnailHeight 118 | }, 119 | 'datePublished': '2015-02-05T08:00:00+08:00', 120 | 'dateModified': '2015-02-05T09:20:00+08:00', 121 | 'author': { 122 | '@type': 'Person', 123 | 'name': 'John Doe' 124 | }, 125 | 'publisher': { 126 | '@type': 'Organization', 127 | 'name': 'ACME Industries', 128 | 'logo': { 129 | '@type': 'ImageObject', 130 | 'url': jsonData.siteUrl + '/images/logo.jpg', 131 | 'width': 600, 132 | 'height': 60 133 | } 134 | }, 135 | 'description': jsonData.page.description 136 | } 137 | 138 | document.querySelector('html > head > title').innerText = 139 | jsonData.page.title; 140 | document.querySelector('h2').innerText = jsonData.page.title; 141 | document.querySelector('#schema-data').innerHTML = 142 | JSON.stringify(newSchemaMeta); 143 | 144 | document.querySelector('html > head > link[rel=canonical]').href = 145 | canonical; 146 | 147 | document.querySelector('html > head > meta[property=og\\:title]').content = 148 | jsonData.page.title; 149 | document.querySelector('html > head > meta[property=og\\:url]').content = 150 | jsonData.siteUrl + jsonData.page.canonical; 151 | document.querySelector('html > head > meta[property=og\\:image]').content = 152 | jsonData.siteUrl + jsonData.page.metaImage; 153 | 154 | document.querySelector('html > head > meta[name=twitter\\:title]').content = 155 | jsonData.page.title; 156 | document.querySelector( 157 | 'html > head > meta[name=twitter\\:description]').content = 158 | jsonData.page.description; 159 | document.querySelector( 160 | 'html > head > meta[name=twitter\\:image]').content = 161 | jsonData.siteUrl + jsonData.page.metaImage; 162 | 163 | document.querySelector('.image-copyright p').innerText = 164 | 'Image is copyright of ' + jsonData.page.copyright; 165 | }, 166 | isRenderedPageEmpty: function() { 167 | var contentTag = document.querySelector('#content'); 168 | return contentTag.innerHTML.trim() == ''; 169 | }, 170 | checkOnlineOfflineState: function() { 171 | if (navigator.onLine) { 172 | document.body.classList.remove('offline'); 173 | } else { 174 | document.body.classList.add('offline'); 175 | } 176 | }, 177 | showOfflinePage: function() { 178 | pwaDemo.processJSON({ 179 | page: { 180 | title: 'Offline', 181 | canonical: '/', 182 | content: 'You are offline.', 183 | description: '', 184 | metaImage: '', 185 | thumbnailPath: '', 186 | thumbnailWidth: '', 187 | thumbnailHeight: '', 188 | copyright: '' 189 | }, 190 | siteUrl: '' 191 | }); 192 | } 193 | } 194 | 195 | // Detect Service Worker API availability and install if possible 196 | if ('serviceWorker' in navigator) { 197 | navigator.serviceWorker.register('/generated-service-worker.js', { 198 | 'scope': '/' 199 | }).then(function(registration) { 200 | // Registration was successful 201 | console.log('ServiceWorker registration successful with scope: ', 202 | registration.scope); 203 | }).catch(function(err) { 204 | // Registration failed 205 | console.log('ServiceWorker registration failed: ', err); 206 | }); 207 | } 208 | 209 | document.addEventListener('click', function(e) { 210 | if (serverConfig.renderMode == 'server' || 211 | serverConfig.updateMode == 'disabled') { 212 | // Allow the links to be traversed as per normal. 213 | return; 214 | } 215 | 216 | if (e.target.classList.contains('external')) { 217 | // Links designed to be regularly traversed. 218 | return; 219 | } 220 | 221 | if (e.target.tagName == 'A') { 222 | e.preventDefault(); 223 | 224 | var newUrl = e.target.href; 225 | var linkDescription = e.target.text; 226 | 227 | // Push the request on the 228 | history.pushState(false, linkDescription, newUrl); 229 | 230 | pwaDemo.updatePageContent(newUrl); 231 | } 232 | }, false); 233 | 234 | window.addEventListener('load', function(e) { 235 | // Fade out the content of the page slightly when the user is offline 236 | pwaDemo.checkOnlineOfflineState(); 237 | 238 | if (serverConfig.renderMode == 'server') { 239 | return; 240 | } 241 | 242 | // Listen for browser navigation state changes and update dynamically if 243 | // render mode isn't server driven 244 | window.addEventListener('popstate', function(event) { 245 | pwaDemo.updatePageContent(window.location.toString()); 246 | }); 247 | 248 | if (serverConfig.renderMode == 'client') { 249 | // Fetch the page content separately from the initial URL request 250 | pwaDemo.updatePageContent(window.location.toString()); 251 | } 252 | 253 | if (serverConfig.renderMode == 'hybrid' && pwaDemo.isRenderedPageEmpty()) { 254 | // Fetch the page content separately from the initial URL request 255 | // if the hybrid model received an empty page -- i.e from the service worker 256 | pwaDemo.updatePageContent(window.location.toString()); 257 | } 258 | }, false); 259 | 260 | window.addEventListener('offline', function(e) { 261 | console.log('Transitioned offline.'); 262 | 263 | pwaDemo.checkOnlineOfflineState(); 264 | }); 265 | 266 | window.addEventListener('online', function(e) { 267 | console.log('Transitioned online.'); 268 | 269 | pwaDemo.checkOnlineOfflineState(); 270 | 271 | if (serverConfig.renderMode == 'client' || 272 | serverConfig.renderMode == 'hybrid') { 273 | // Dynamically fetch new content if the user goes online while on a page 274 | pwaDemo.updatePageContent(window.location.toString()); 275 | } 276 | }); 277 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /public/javascripts/amp-core.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2016 Google Inc. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | */ 16 | window.AMP_CONFIG={"canary":false,"no-auth-in-prerender":1,"amp-sticky-ad":1,"amp-live-list":1,"amp-ios-overflow-x":1,"amp-experiment":1,"v":"031471559432224"};/*AMP_CONFIG*/try{(function(){var process={env:{NODE_ENV:"production"}};var f,aa=function(a){return"undefined"!=typeof window&&window===a?a:"undefined"!=typeof global?global:a}(this);function ba(a,b){function c(){}c.prototype=b.prototype;a.prototype=new c;a.prototype.constructor=a;for(var d in b)if(aa.Object.defineProperties){var e=aa.Object.getOwnPropertyDescriptor(b,d);e&&aa.Object.defineProperty(a,d,e)}else a[d]=b[d]}var ca=""; 17 | function r(a){var b=a||self,c;if(b.AMP_MODE)c=b.AMP_MODE;else{c=b;if(c.context&&c.context.mode)c=c.context.mode;else{var d=location.originalHash||location.hash,e=Object.create(null);if(d){if(0==d.indexOf("?")||0==d.indexOf("#"))d=d.substr(1);for(var d=d.split("&"),g=0;ga.length)return!1;var c=a.length-b.length;return a.indexOf(b,c)==c}function ua(a){var b=x.urls.cdn;return b.length>a.length?!1:0==a.lastIndexOf(b,0)};var z,va,wa=/[?&]amp_js[^&]*/; 24 | function A(a){z||(z=self.document.createElement("a"),va=self.UrlCache||(self.UrlCache=Object.create(null)));var b=va[a];if(b)return b;z.href=a;z.protocol||(z.href=z.href);var c={href:z.href,protocol:z.protocol,host:z.host,hostname:z.hostname,port:"0"==z.port?"":z.port,pathname:z.pathname,search:z.search,hash:z.hash,origin:null};"/"!==c.pathname[0]&&(c.pathname="/"+c.pathname);if("http:"==c.protocol&&80==c.port||"https:"==c.protocol&&443==c.port)c.port="",c.host=c.hostname;c.origin=z.origin&&"null"!= 25 | z.origin?z.origin:"data:"!=c.protocol&&c.host?c.protocol+"//"+c.host:c.href;return va[a]=c}function xa(a,b,c){c=void 0===c?"source":c;t().assert(null!=a,"%s %s must be available",b,c);var d=A(a);t().assert("https:"==d.protocol||/^(\/\/)/.test(a)||"localhost"==d.hostname||ta(d.hostname),'%s %s must start with "https://" or "//" or be relative and served from either https or from localhost. 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2 | Error 3 |

6 | <%- page.title %> 7 |

3 | Indexable PWA 4 |