├── .gitignore ├── img ├── love.png ├── icon128.png ├── icon16.png ├── icon48.png ├── icon64.png ├── logout.png ├── main-icon.png ├── ajax-loader.gif ├── defaultcover.png ├── icon16_lastfm.png ├── main-icon-error.png ├── main-icon-paused.png ├── main-icon-playing.png └── main-icon-scrobbling-stopped.png ├── lastfm_callback.html ├── background.html ├── js ├── lastfm_callback.js ├── contentscript.js ├── inject.js ├── popup.js ├── background.js ├── lastfm.js ├── md5.js └── jquery-1.7.min.js ├── popup.html ├── manifest.json ├── css └── popup.css └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | .project 2 | .settings 3 | .DS_Store 4 | -------------------------------------------------------------------------------- /img/love.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asavartsov/cloudplayer-scrobbler/HEAD/img/love.png 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-------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /js/lastfm_callback.js: -------------------------------------------------------------------------------- 1 | function _url_param(name, url) { 2 | return unescape((RegExp(name + '=' + 3 | '(.+?)(&|$)').exec(url) || [,null])[1]); 4 | } 5 | 6 | var background_page = chrome.extension.getBackgroundPage(); 7 | location.href = "http://last.fm/"; 8 | 9 | background_page.get_lastfm_session(_url_param("token", location.search)); -------------------------------------------------------------------------------- /popup.html: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
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35 | 36 | -------------------------------------------------------------------------------- /manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "manifest_version": 2, 3 | "name": "Amazon Cloud Player scrobbler", 4 | "version": "1.1.0", 5 | "description": "Scrobbles songs from Amazon Cloud Player to Last.fm", 6 | "icons": { 7 | "16": "img/icon16.png", 8 | "48": "img/icon48.png", 9 | "64": "img/icon64.png", 10 | "128": "img/icon128.png" 11 | }, 12 | "browser_action": { 13 | "default_icon": "img/main-icon.png", 14 | "default_popup": "popup.html" 15 | }, 16 | "permissions": [ 17 | "http://ws.audioscrobbler.com/", 18 | "https://www.amazon.com/", 19 | "https://www.amazon.de/" 20 | ], 21 | "background" : {"scripts": ["js/md5.js", "js/lastfm.js", "js/jquery-1.7.min.js", "js/background.js"]}, 22 | "content_scripts": [ 23 | { 24 | "js": ["js/inject.js"], 25 | "matches": ["https://www.amazon.com/gp/dmusic/mp3/*","https://www.amazon.de/gp/dmusic/mp3/*"] 26 | }, 27 | { 28 | "js": ["js/contentscript.js"], 29 | "matches": ["https://www.amazon.com/gp/dmusic/mp3/*", "https://www.amazon.de/gp/dmusic/mp3/*"] 30 | }, 31 | { 32 | "js": ["js/jquery-1.7.min.js"], 33 | "matches": ["https://www.amazon.com/gp/dmusic/mp3/*", "https://www.amazon.de/gp/dmusic/mp3/*"], 34 | "run_at": "document_start" 35 | } 36 | ] 37 | } 38 | -------------------------------------------------------------------------------- /css/popup.css: -------------------------------------------------------------------------------- 1 | /** 2 | * popup.css 3 | * Style sheet for popup page 4 | * Copyright (c) 2011 Alexey Savartsov 5 | * Licensed under the MIT license 6 | */ 7 | 8 | body { 9 | padding: 10px; 10 | margin: 0; 11 | min-width: 300px; 12 | 13 | font-family: "Helvetica", "Arial", sans-serif; 14 | } 15 | 16 | p { 17 | line-height: 100%; 18 | padding: 0; 19 | margin: 0; 20 | } 21 | 22 | a { 23 | color: grey; 24 | } 25 | 26 | a:hover { 27 | color: black; 28 | } 29 | 30 | #cover-box { 31 | float: left; 32 | } 33 | 34 | #cover { 35 | border: none; 36 | } 37 | 38 | #song.nosong { 39 | color: grey; 40 | } 41 | 42 | #song.nosong a { 43 | font-size: 12px; 44 | } 45 | 46 | #song { 47 | margin-left: 75px; 48 | } 49 | 50 | #artist { 51 | font-size: 18px; 52 | } 53 | 54 | #track { 55 | margin-top: 6px; 56 | font-size: 14px; 57 | } 58 | 59 | #lastfm-buttons { 60 | margin-top: 6px; 61 | } 62 | 63 | #bottom { 64 | margin-top: 10px; 65 | font-size: 11px; 66 | 67 | color: grey; 68 | } 69 | 70 | #scrobbling { 71 | float: left; 72 | } 73 | 74 | #lastfm-profile { 75 | float: right; 76 | } 77 | 78 | a.logout { 79 | display: inline-block; 80 | width: 10px; 81 | height: 10px; 82 | background: url('../img/logout.png') 0 0 no-repeat; 83 | margin-left: 4px; 84 | } 85 | 86 | a:hover.logout { 87 | background-position: 0 -10px; 88 | } 89 | 90 | a.loved, a.notloved { 91 | display: inline-block; 92 | width: 16px; 93 | height: 16px; 94 | background-image: url('../img/love.png'); 95 | background-repeat: no-repeat; 96 | } 97 | 98 | a.loved { 99 | background-position: 0 0; 100 | } 101 | 102 | a.notloved { 103 | background-position: 0 -16px; 104 | } 105 | 106 | .clear { 107 | clear: both; 108 | } 109 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Amazon Cloud Player scrobbler 2 | ----------------------------- 3 | 4 | Google Chrome plugin for scrobbling songs from Amazon Cloud Player to Last.fm 5 | 6 | Features 7 | ======== 8 | 9 | * Scrobbles now playing songs at 70% played time 10 | * Song information in popup window 11 | * Cloud Player state in icon 12 | * Love/unlove now playing song 13 | * Option to turn scrobbling off if you do not want to send scrobbles 14 | 15 | Installation 16 | ============ 17 | 18 | Install stable release from [Google Web Store](https://chrome.google.com/webstore/detail/nolkhoglpmelgkcljkjlfeledieoahoa) 19 | 20 | Version History 21 | =============== 22 | 23 | **Version 1.1.0** 24 | 25 | * New engine for obtaining the song info. Now playing information now gathering directly from Cloud Player JS objects 26 | * Fixed a problem with long song titles (when some song sometimes were scrobbled like "This is Very Very Very Long Tit...") 27 | * Now the album information is sent too 28 | * Fixed a rare problem with superfluous scrobbles on song switching 29 | 30 | **Version 1.0.3** 31 | 32 | * Fixed link to Cloud Player in popup window (Amazon now returns 403 error for short link used before) 33 | 34 | **Version 1.0.2** 35 | 36 | * Fixed artist detection when playing from Artists section 37 | * Fixed a problem when popup displayed a song info when player stopped playing 38 | 39 | Author 40 | ====== 41 | 42 | [Alexey Savartsov](https://github.com/asavartsov), asavartsov@gmail.com 43 | 44 | License 45 | ======= 46 | 47 | (The MIT License) 48 | 49 | Copyright (c) 2011 Alexey Savartsov, asavartsov@gmail.com 50 | 51 | Permission is hereby granted, free of charge, to any person obtaining 52 | a copy of this software and associated documentation files (the 53 | 'Software'), to deal in the Software without restriction, including 54 | without limitation the rights to use, copy, modify, merge, publish, 55 | distribute, sublicense, and/or sell copies of the Software, and to 56 | permit persons to whom the Software is furnished to do so, subject to 57 | the following conditions: 58 | 59 | The above copyright notice and this permission notice shall be 60 | included in all copies or substantial portions of the Software. 61 | 62 | THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, 63 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 64 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 65 | IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 66 | CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 67 | TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 68 | SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 69 | -------------------------------------------------------------------------------- /js/contentscript.js: -------------------------------------------------------------------------------- 1 | /** 2 | * contentscripts.js 3 | * Parses player page and transmit song information to background page 4 | * Copyright (c) 2011 Alexey Savartsov 5 | * Licensed under the MIT license 6 | */ 7 | 8 | /** 9 | * Player class 10 | * 11 | * Cloud Player page parser 12 | */ 13 | function Player(parser) { 14 | this.has_song = parser._get_has_song(); 15 | this.is_playing = parser._get_is_playing(); 16 | this.song = { 17 | position: parser._get_song_position(), 18 | time: parser._get_song_time(), 19 | title: parser._get_song_title(), 20 | artist: parser._get_song_artist(), 21 | album: parser._get_song_album(), 22 | cover: parser._get_song_cover() 23 | }; 24 | } 25 | 26 | /** 27 | * Constructor for parser class 28 | * Executes scripts to fetch now playing info from cloudplayer 29 | * @returns {AmazonParser} 30 | */ 31 | AmazonParser = function() { 32 | this._player = injectScript(function() { 33 | return amznMusic.widgets.player.getCurrent(); 34 | }); 35 | 36 | this._time = injectScript(function() { 37 | var position = amznMusic.widgets.playerNative.getCurrentTime() + amznMusic.widgets.playerFlash.getCurrentTime(); 38 | return position; 39 | }); 40 | }; 41 | 42 | /** 43 | * Check whether a song loaded into player widget 44 | * 45 | * @return true if some song is loaded, otherwise false 46 | */ 47 | AmazonParser.prototype._get_has_song = function() { 48 | return ($("#noMusicInNowPlaying").length == 0); 49 | }; 50 | 51 | /** 52 | * Checks whether song is playing or paused 53 | * 54 | * @return true if song is playing, false if song is paused 55 | */ 56 | AmazonParser.prototype._get_is_playing = function() { 57 | return $("#mp3Player .mp3MasterPlayGroup").hasClass("playing"); 58 | }; 59 | 60 | /** 61 | * Get current song playing position 62 | * 63 | * @return Playing position in seconds 64 | */ 65 | AmazonParser.prototype._get_song_position = function() { 66 | return this._time; 67 | }; 68 | 69 | /** 70 | * Get current song length 71 | * 72 | * @return Song length in seconds 73 | */ 74 | AmazonParser.prototype._get_song_time = function() { 75 | return this._player ? parseInt(this._player.metadata.duration) : 0; 76 | }; 77 | 78 | /** 79 | * Get current song title 80 | * 81 | * @return Song title 82 | */ 83 | AmazonParser.prototype._get_song_title = function() { 84 | return this._player ? this._player.metadata.title : null; 85 | }; 86 | 87 | /** 88 | * Get current song artist 89 | * 90 | * @return Song artist 91 | */ 92 | AmazonParser.prototype._get_song_artist = function() { 93 | return this._player ? this._player.metadata.artistName : null; 94 | }; 95 | 96 | /** 97 | * Get current song artwork 98 | * 99 | * @return Image URL or default artwork 100 | */ 101 | AmazonParser.prototype._get_song_cover = function() { 102 | return this._player ? this._player.metadata.albumCoverImageSmall : null; 103 | }; 104 | 105 | /** 106 | * Get current song album name 107 | * 108 | * @return Album name or null 109 | */ 110 | AmazonParser.prototype._get_song_album = function() { 111 | return this._player ? this._player.metadata.albumName : null; 112 | }; 113 | 114 | var port = chrome.extension.connect({name: "cloudplayer"}); 115 | 116 | window.setInterval(function() { 117 | port.postMessage(new Player(new AmazonParser())); 118 | }, 119 | 10000); 120 | -------------------------------------------------------------------------------- /js/inject.js: -------------------------------------------------------------------------------- 1 | ////////////////////////////////////////////////////////////////////////////////////////////// 2 | // Copyright(C) 2010 Abdullah Ali, voodooattack@hotmail.com // 3 | ////////////////////////////////////////////////////////////////////////////////////////////// 4 | // Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php // 5 | ////////////////////////////////////////////////////////////////////////////////////////////// 6 | 7 | // Injects a script into the DOM, the new script gets executed in the original page's 8 | // context instead of the active content-script context. 9 | // 10 | // Parameters: 11 | // source: [string/function] 12 | // (2..n): Function arguments if a function was passed as the first parameter. 13 | 14 | 15 | function injectScript(source) 16 | { 17 | 18 | // Utilities 19 | var isFunction = function (arg) { 20 | return (Object.prototype.toString.call(arg) == "[object Function]"); 21 | }; 22 | 23 | var jsEscape = function (str) { 24 | // Replaces quotes with numerical escape sequences to 25 | // avoid single-quote-double-quote-hell, also helps by escaping HTML special chars. 26 | if (!str || !str.length) return str; 27 | // use \W in the square brackets if you have trouble with any values. 28 | var r = /['"<>\/]/g, result = "", l = 0, c; 29 | do{ c = r.exec(str); 30 | result += (c ? (str.substring(l, r.lastIndex-1) + "\\x" + 31 | c[0].charCodeAt(0).toString(16)) : (str.substring(l))); 32 | } while (c && ((l = r.lastIndex) > 0)) 33 | return (result.length ? result : str); 34 | }; 35 | 36 | var bFunction = isFunction(source); 37 | var elem = document.createElement("script"); // create the new script element. 38 | var script, ret, id = ""; 39 | 40 | if (bFunction) 41 | { 42 | // We're dealing with a function, prepare the arguments. 43 | var args = []; 44 | 45 | for (var i = 1; i < arguments.length; i++) 46 | { 47 | var raw = arguments[i]; 48 | var arg; 49 | 50 | if (isFunction(raw)) // argument is a function. 51 | arg = "eval(\"" + jsEscape("(" + raw.toString() + ")") + "\")"; 52 | else if (Object.prototype.toString.call(raw) == '[object Date]') // Date 53 | arg = "(new Date(" + raw.getTime().toString() + "))"; 54 | else if (Object.prototype.toString.call(raw) == '[object RegExp]') // RegExp 55 | arg = "(new RegExp(" + raw.toString() + "))"; 56 | else if (typeof raw === 'string' || typeof raw === 'object') // String or another object 57 | arg = "JSON.parse(\"" + jsEscape(JSON.stringify(raw)) + "\")"; 58 | else 59 | arg = raw.toString(); // Anything else number/boolean 60 | 61 | args.push(arg); // push the new argument on the list 62 | } 63 | 64 | // generate a random id string for the script block 65 | while (id.length < 16) id += String.fromCharCode(((!id.length || Math.random() > 0.5) ? 66 | 0x61 + Math.floor(Math.random() * 0x19) : 0x30 + Math.floor(Math.random() * 0x9 ))); 67 | 68 | // build the final script string, wrapping the original in a boot-strapper/proxy: 69 | script = "(function(){var value={callResult: null, throwValue: false};try{value.callResult=(("+ 70 | source.toString()+")("+args.join()+"));}catch(e){value.throwValue=true;value.callResult=e;};"+ 71 | "document.getElementById('"+id+"').innerText=JSON.stringify(value);})();"; 72 | 73 | elem.id = id; 74 | } 75 | else // plain string, just copy it over. 76 | { 77 | script = source; 78 | } 79 | 80 | elem.type = "text/javascript"; 81 | elem.innerHTML = script; 82 | 83 | // insert the element into the DOM (it starts to execute instantly) 84 | document.head.appendChild(elem); 85 | 86 | if (bFunction) 87 | { 88 | // get the return value from our function: 89 | ret = JSON.parse(elem.innerText); 90 | 91 | // remove the now-useless clutter. 92 | elem.parentNode.removeChild(elem); 93 | 94 | // make sure the garbage collector picks it instantly. (and hope it does) 95 | delete (elem); 96 | 97 | // see if our returned value was thrown or not 98 | if (ret.throwValue) 99 | throw (ret.callResult); 100 | else 101 | return (ret.callResult); 102 | } 103 | else // plain text insertion, return the new script element. 104 | return (elem); 105 | } 106 | -------------------------------------------------------------------------------- /js/popup.js: -------------------------------------------------------------------------------- 1 | /** 2 | * popup.js 3 | * Popup page script 4 | * Copyright (c) 2011 Alexey Savartsov 5 | * Licensed under the MIT license 6 | */ 7 | 8 | /* Background page */ 9 | var bp = chrome.extension.getBackgroundPage(); 10 | 11 | /* Render popup when DOM is ready */ 12 | $(document).ready(function() { 13 | render_scrobble_link(); 14 | render_song(); 15 | render_auth_link(); 16 | }); 17 | 18 | /* Render functions */ 19 | 20 | /** 21 | * Renders current song details 22 | */ 23 | function render_song() { 24 | if(bp.player.song) 25 | { 26 | $("#artist").text(bp.player.song.artist); 27 | $("#track").text(bp.player.song.title); 28 | $("#cover").attr({ src: bp.player.song.cover || "img/defaultcover.png" }); 29 | 30 | if(bp.lastfm_api.session.name && bp.lastfm_api.session.key) { 31 | render_love_button(); 32 | } 33 | else { 34 | $("#lastfm-buttons").hide(); 35 | } 36 | } 37 | else { 38 | $("#song").addClass("nosong"); 39 | $("#artist").text("Nothing is playing"); 40 | $("#track").html(''); 41 | $("#track a") 42 | .attr({ 43 | href: "https://www.amazon.com/gp/dmusic/mp3/player", 44 | target: "_blank" 45 | }) 46 | .text("Start Cloud Player"); 47 | $("#cover ").attr({ src: "img/defaultcover.png" }); 48 | $("#lastfm-buttons").hide(); 49 | } 50 | } 51 | 52 | /** 53 | * Renders the link to turn on/off scrobbling 54 | */ 55 | function render_scrobble_link() { 56 | $("#scrobbling").html(''); 57 | $("#scrobbling a") 58 | .attr({ 59 | href: "#" 60 | }) 61 | .click(on_toggle_scrobble) 62 | .text(bp.SETTINGS.scrobble ? "Stop scrobbling" : "Resume scrobbling"); 63 | } 64 | 65 | /** 66 | * Renders authentication/profile link 67 | */ 68 | function render_auth_link() { 69 | if(bp.lastfm_api.session.name && bp.lastfm_api.session.key) 70 | { 71 | $("#lastfm-profile").html("Logged in as " + ""); 72 | $("#lastfm-profile a:first") 73 | .attr({ 74 | href: "http://last.fm/user/" + bp.lastfm_api.session.name, 75 | target: "_blank" 76 | }) 77 | .text(bp.lastfm_api.session.name); 78 | 79 | $("#lastfm-profile a:last") 80 | .attr({ 81 | href: "#", 82 | title: "Logout" 83 | }) 84 | .click(on_logout) 85 | .addClass("logout"); 86 | } 87 | else { 88 | $("#lastfm-profile").html(''); 89 | $("#lastfm-profile a") 90 | .attr({ 91 | href: "#" 92 | }) 93 | .click(on_auth) 94 | .text("Connect to Last.fm"); 95 | } 96 | } 97 | 98 | /** 99 | * Renders the love button 100 | */ 101 | function render_love_button() { 102 | $("#love-button").html(''); 103 | 104 | bp.lastfm_api.is_track_loved(bp.player.song.title, 105 | bp.player.song.artist, 106 | function(result) { 107 | $("#love-button").html(''); 108 | 109 | if(result) { 110 | $("#love-button a").attr({ title: "Unlove this song"}) 111 | .click(on_unlove) 112 | .addClass("loved"); 113 | 114 | } 115 | else { 116 | $("#love-button a").attr({ title: "Love this song" }) 117 | .click(on_love) 118 | .addClass("notloved"); 119 | } 120 | }); 121 | } 122 | 123 | /* Event handlers */ 124 | 125 | /** 126 | * Turn on/off scrobbling link was clicked 127 | */ 128 | function on_toggle_scrobble() { 129 | bp.toggle_scrobble(); 130 | render_scrobble_link(); 131 | } 132 | 133 | /** 134 | * Authentication link was clicked 135 | */ 136 | function on_auth() { 137 | bp.start_web_auth(); 138 | window.close(); 139 | } 140 | 141 | /** 142 | * Logout link was clicked 143 | */ 144 | function on_logout() { 145 | bp.clear_session(); 146 | render_auth_link(); 147 | } 148 | 149 | /** 150 | * Love button was clicked 151 | */ 152 | function on_love() { 153 | bp.lastfm_api.love_track(bp.player.song.title, bp.player.song.artist, 154 | function(result) { 155 | if(!result.error) { 156 | render_love_button(); 157 | } 158 | else { 159 | if(result.error == 9) { 160 | // Session expired 161 | bp.clear_session(); 162 | render_auth_link(); 163 | } 164 | 165 | chrome.browserAction.setIcon({ 166 | 'path': SETTINGS.error_icon }); 167 | } 168 | }); 169 | 170 | $("#love-button").html(''); 171 | } 172 | 173 | /** 174 | * Unlove button was clicked 175 | */ 176 | function on_unlove() { 177 | bp.lastfm_api.unlove_track(bp.player.song.title, bp.player.song.artist, 178 | function(result) { 179 | if(!result.error) { 180 | render_love_button(); 181 | } 182 | else { 183 | if(result.error == 9) { 184 | // Session expired 185 | bp.clear_session(); 186 | render_auth_link(); 187 | } 188 | 189 | chrome.browserAction.setIcon({ 190 | 'path': SETTINGS.error_icon }); 191 | } 192 | }); 193 | 194 | $("#love-button").html(''); 195 | } 196 | -------------------------------------------------------------------------------- /js/background.js: -------------------------------------------------------------------------------- 1 | /** 2 | * background.js 3 | * Background page script 4 | * Copyright (c) 2011 Alexey Savartsov 5 | * Licensed under the MIT license 6 | */ 7 | 8 | var SETTINGS = { 9 | api_key: "754ae915036422c2134252ffeb1d6cc9", 10 | api_secret: "8fbb8c5f1208e4476b27e03bde8e5c99", 11 | 12 | callback_file: "lastfm_callback.html", 13 | 14 | main_icon: "img/main-icon.png", 15 | playing_icon: "img/main-icon-playing.png", 16 | paused_icon: "img/main-icon-paused.png", 17 | error_icon: "img/main-icon-error.png", 18 | scrobbling_stopped_icon: "img/main-icon-scrobbling-stopped.png" 19 | }; 20 | 21 | var player = {}; // Previous player state 22 | var now_playing_sent = false; 23 | var scrobbled = false; 24 | var lastfm_api = new LastFM(SETTINGS.api_key, SETTINGS.api_secret); 25 | 26 | // Load settings from local storage 27 | lastfm_api.session.key = localStorage["session_key"] || null; 28 | lastfm_api.session.name = localStorage["session_name"] || null; 29 | 30 | // This enables scrobbling by default 31 | SETTINGS.scrobble = !(localStorage["scrobble"] == "false"); 32 | 33 | if(!SETTINGS.scrobble) { 34 | chrome.browserAction.setIcon({ 'path': SETTINGS.scrobbling_stopped_icon }); 35 | } 36 | 37 | // Connect event handlers 38 | chrome.extension.onConnect.addListener(port_on_connect); 39 | 40 | /** 41 | * Content script has connected to the extension 42 | */ 43 | function port_on_connect(port) { 44 | console.assert(port.name == "cloudplayer"); 45 | 46 | // Connect another port event handlers 47 | port.onMessage.addListener(port_on_message); 48 | port.onDisconnect.addListener(port_on_disconnect); 49 | } 50 | 51 | /** 52 | * New message arrives to the port 53 | */ 54 | function port_on_message(message) { 55 | // Current player state 56 | var _p = message; 57 | 58 | if(!SETTINGS.scrobble) { 59 | chrome.browserAction.setIcon({ 60 | 'path': SETTINGS.scrobbling_stopped_icon }); 61 | 62 | player = _p; 63 | return; 64 | } 65 | 66 | if(_p.has_song) { 67 | if(_p.is_playing) { 68 | chrome.browserAction.setIcon({ 69 | 'path': SETTINGS.playing_icon }); 70 | 71 | // Last.fm recommends to scrobble a song at least at 50% 72 | // TODO: Setting for 0.7? 73 | var time_to_scrobble = _p.song.time * 0.7 - _p.song.position; 74 | 75 | // Check for valid timings and for that the now playing status was reported at least once 76 | // This intended to fix an issue with invalid timings that Amazon accidentally reports on 77 | // song start 78 | if(time_to_scrobble <= 0 && _p.song.position > 0 && _p.song.time > 0) { 79 | // TODO: Another way? 80 | // if(scrobbled && _p.song.position > player.song.position) 81 | 82 | if(now_playing_sent && !scrobbled) { 83 | // Scrobble this song 84 | lastfm_api.scrobble(_p.song.title, 85 | /* Song start time */ 86 | Math.round(new Date().getTime() / 1000) - _p.song.position, 87 | _p.song.artist, 88 | _p.song.album, 89 | function(response) { 90 | if(!response.error) { 91 | // Song was scrobled, waiting for the next song 92 | scrobbled = true; 93 | now_playing_sent = false; 94 | } 95 | else { 96 | if(response.error == 9) { 97 | // Session expired 98 | clear_session(); 99 | } 100 | 101 | chrome.browserAction.setIcon({ 102 | 'path': SETTINGS.error_icon }); 103 | } 104 | }); 105 | } 106 | } 107 | else { 108 | // Set now playing status 109 | // TODO: Maybe there is no need to do it so frequent? 110 | lastfm_api.now_playing(_p.song.title, 111 | _p.song.artist, 112 | _p.song.album, 113 | function(response) { 114 | // TODO: 115 | }); 116 | 117 | now_playing_sent = true; 118 | scrobbled = false; 119 | } 120 | 121 | // Save player state 122 | player = _p; // TODO: Save here? 123 | } 124 | else { 125 | // The player is paused 126 | chrome.browserAction.setIcon({ 127 | 'path': SETTINGS.paused_icon }); 128 | } 129 | } 130 | else { 131 | chrome.browserAction.setIcon({ 'path': SETTINGS.main_icon }); 132 | player = {}; 133 | scrobbled = false; 134 | now_playing_sent = false; 135 | } 136 | } 137 | 138 | /** 139 | * Content script has disconnected 140 | */ 141 | function port_on_disconnect() { 142 | player = {}; // Clear player state 143 | scrobbled = false; 144 | now_playing_sent = false; 145 | chrome.browserAction.setIcon({ 'path': SETTINGS.main_icon }); 146 | } 147 | 148 | 149 | /** 150 | * Authentication link from popup window 151 | */ 152 | function start_web_auth() { 153 | var callback_url = chrome.extension.getURL(SETTINGS.callback_file); 154 | chrome.tabs.create({ 155 | 'url': 156 | "http://www.last.fm/api/auth?api_key=" + 157 | SETTINGS.api_key + 158 | "&cb=" + 159 | callback_url }); 160 | } 161 | 162 | /** 163 | * Clears last.fm session 164 | */ 165 | function clear_session() { 166 | lastfm_api.session = {}; 167 | 168 | localStorage.removeItem("session_key"); 169 | localStorage.removeItem("session_name"); 170 | } 171 | 172 | /** 173 | * Toggles setting to scrobble songs or not 174 | */ 175 | function toggle_scrobble() { 176 | SETTINGS.scrobble = !SETTINGS.scrobble; 177 | localStorage["scrobble"] = SETTINGS.scrobble; 178 | 179 | // Set the icon corresponding the current scrobble state 180 | var icon = SETTINGS.scrobble ? SETTINGS.main_icon : SETTINGS.scrobbling_stopped_icon; 181 | chrome.browserAction.setIcon({ 'path': icon }); 182 | } 183 | 184 | /** 185 | * Last.fm session request 186 | */ 187 | function get_lastfm_session(token) { 188 | lastfm_api.authorize(token, function(response) { 189 | // Save session 190 | if(response.session) 191 | { 192 | localStorage["session_key"] = response.session.key; 193 | localStorage["session_name"] = response.session.name; 194 | } 195 | }); 196 | } 197 | -------------------------------------------------------------------------------- /js/lastfm.js: -------------------------------------------------------------------------------- 1 | /** 2 | * lastfm.js 3 | * Last.fm authorization and scrobbling XHR requests 4 | * Copyright (c) 2011 Alexey Savartsov 5 | * Licensed under the MIT license 6 | */ 7 | 8 | /** 9 | * LastFM class constructor 10 | * 11 | * @param api_key Last.fm API key 12 | * @param api_secret Last.fm API secret 13 | */ 14 | function LastFM(api_key, api_secret) { 15 | this.API_KEY = api_key || ""; 16 | this.API_SECRET = api_secret || ""; 17 | this.API_ROOT = "http://ws.audioscrobbler.com/2.0/"; 18 | 19 | this.session = {}; 20 | } 21 | 22 | /** 23 | * Makes an authorization request 24 | * 25 | * @param token Authorization token 26 | * @param callback Callback function for the request. Sends a parameter with 27 | * reply decoded as JS object from JSON on null on error 28 | */ 29 | LastFM.prototype.authorize = function(token, callback) { 30 | var params = { 31 | 'api_key': this.API_KEY, 32 | 'method': "auth.getSession", 33 | 'token': token 34 | }; 35 | 36 | params.api_sig = this._req_sign(params); 37 | params.format = "json"; 38 | 39 | var self = this; 40 | 41 | this._xhr("GET", params, 42 | function(reply) { 43 | if(reply) { 44 | self.session.key = reply.session.key; 45 | self.session.name = reply.session.name; 46 | callback(reply); 47 | } 48 | else { 49 | callback(); 50 | } 51 | }); 52 | }; 53 | 54 | /** 55 | * Sets Now Playing status for a track 56 | * 57 | * @param track Track title 58 | * @param artist Track artist 59 | * @param callback Callback function for the request. Sends a parameter with 60 | * reply decoded as JS object from JSON on null on error 61 | */ 62 | LastFM.prototype.now_playing = function(track, artist, album, callback) { 63 | var params = { 64 | 'api_key': this.API_KEY, 65 | 'method': "track.updateNowPlaying", 66 | 'track': track, 67 | 'artist': artist, 68 | 'album': album, 69 | 'sk': this.session.key 70 | }; 71 | 72 | params.api_sig = this._req_sign(params); 73 | params.format = "json"; 74 | 75 | this._xhr("POST", params, 76 | function(result) { 77 | callback(result); 78 | }); 79 | }; 80 | 81 | /** 82 | * Scrobbles a track 83 | * 84 | * @param track Track title 85 | * @param timestamp The time the track starts playing in UNIX format 86 | * @param artist Track artist 87 | * @param callback Callback function for the request. Sends a parameter with 88 | * reply decoded as JS object from JSON on null on error 89 | */ 90 | LastFM.prototype.scrobble = function(track, timestamp, artist, album, callback) { 91 | var params = { 92 | 'api_key': this.API_KEY, 93 | 'method': "track.scrobble", 94 | 'track': track, 95 | 'timestamp': timestamp, 96 | 'artist': artist, 97 | 'album': album, 98 | 'sk': this.session.key 99 | }; 100 | 101 | params.api_sig = this._req_sign(params); 102 | params.format = "json"; 103 | 104 | this._xhr("POST", params, 105 | function(result) { 106 | callback(result); 107 | }); 108 | }; 109 | 110 | /** 111 | * Loves a track 112 | * 113 | * @param track Track title 114 | * @param artist Track artist 115 | * @param callback Callback function for the request. Sends a parameter with 116 | * reply decoded as JS object from JSON on null on error 117 | */ 118 | LastFM.prototype.love_track = function(track, artist, callback) { 119 | var params = { 120 | 'api_key': this.API_KEY, 121 | 'method': "track.love", 122 | 'track': track, 123 | 'artist': artist, 124 | 'sk': this.session.key 125 | }; 126 | 127 | params.api_sig = this._req_sign(params); 128 | params.format = "json"; 129 | 130 | this._xhr("POST", params, 131 | function(result) { 132 | callback(result); 133 | }); 134 | }; 135 | 136 | /** 137 | * Unloves a track 138 | * 139 | * @param track Track title 140 | * @param artist Track artist 141 | * @param callback Callback function for the request. Sends a parameter with 142 | * reply decoded as JS object from JSON on null on error 143 | */ 144 | LastFM.prototype.unlove_track = function(track, artist, callback) { 145 | var params = { 146 | 'api_key': this.API_KEY, 147 | 'method': "track.unlove", 148 | 'track': track, 149 | 'artist': artist, 150 | 'sk': this.session.key 151 | }; 152 | 153 | params.api_sig = this._req_sign(params); 154 | params.format = "json"; 155 | 156 | this._xhr("POST", params, 157 | function(result) { 158 | callback(result); 159 | }); 160 | }; 161 | 162 | /** 163 | * Checks whether a track loved by current user 164 | * 165 | * @param track Track title 166 | * @param artist Track artist 167 | * @param callback Callback function for the request. Sends a boolean 168 | * parameter which is true if track loved, otherwise false 169 | */ 170 | LastFM.prototype.is_track_loved = function(track, artist, callback) { 171 | if(!this.session.name) { 172 | callback(false); 173 | return; 174 | } 175 | 176 | var params = { 177 | 'api_key': this.API_KEY, 178 | 'method': "track.getInfo", 179 | 'track': track, 180 | 'artist': artist, 181 | 'username': this.session.name 182 | }; 183 | 184 | params.format = 'json'; 185 | 186 | this._xhr("GET", params, function(result) { 187 | if(!result.error && result.track) { 188 | callback(result.track.userloved == 1); 189 | } 190 | else { 191 | callback(false); 192 | } 193 | }); 194 | }; 195 | 196 | /** 197 | * Makes a signature of request 198 | * 199 | * @param params Request values 200 | * @return Signature string 201 | */ 202 | LastFM.prototype._req_sign = function(params) { 203 | var keys = []; 204 | var key, i; 205 | var signature = ""; 206 | 207 | for(key in params) { 208 | keys.push(key); 209 | } 210 | 211 | for(i in keys.sort()) { 212 | key = keys[i]; 213 | signature += key + params[key]; 214 | } 215 | 216 | signature += this.API_SECRET; 217 | return hex_md5(signature); 218 | }; 219 | 220 | /** 221 | * Performs an XMLHTTP request and expects JSON as reply 222 | * 223 | * @param method Request method (GET or POST) 224 | * @param params Hash with request values. All request fields will be 225 | * automatically urlencoded 226 | * @param callback Callback function for the request. Sends a parameter with 227 | * reply decoded as JS object from JSON on null on error 228 | */ 229 | LastFM.prototype._xhr = function(method, params, callback) { 230 | var uri = this.API_ROOT; 231 | var _data = ""; 232 | var _params = []; 233 | var xhr = new XMLHttpRequest(); 234 | 235 | for(param in params) { 236 | _params.push(encodeURIComponent(param) + "=" 237 | + encodeURIComponent(params[param])); 238 | } 239 | 240 | switch(method) { 241 | case "GET": 242 | uri += '?' + _params.join('&').replace(/%20/, '+'); 243 | break; 244 | case "POST": 245 | _data = _params.join('&'); 246 | break; 247 | default: 248 | return; 249 | } 250 | 251 | xhr.open(method, uri); 252 | 253 | // TODO: Better error handling 254 | xhr.onreadystatechange = function() { 255 | if (xhr.readyState == 4) { 256 | var reply; 257 | 258 | try { 259 | reply = JSON.parse(xhr.responseText); 260 | } 261 | catch (e) { 262 | reply = null; 263 | } 264 | 265 | callback(reply); 266 | } 267 | }; 268 | 269 | xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=UTF-8"); 270 | xhr.setRequestHeader("Pragma", "no-cache"); // The cache is a lie! 271 | xhr.send(_data || null); 272 | }; 273 | -------------------------------------------------------------------------------- /js/md5.js: -------------------------------------------------------------------------------- 1 | /* 2 | * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message 3 | * Digest Algorithm, as defined in RFC 1321. 4 | * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 5 | * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet 6 | * Distributed under the BSD License 7 | * See http://pajhome.org.uk/crypt/md5 for more info. 8 | */ 9 | 10 | /* 11 | * Configurable variables. You may need to tweak these to be compatible with 12 | * the server-side, but the defaults work in most cases. 13 | */ 14 | var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */ 15 | var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */ 16 | 17 | /* 18 | * These are the functions you'll usually want to call 19 | * They take string arguments and return either hex or base-64 encoded strings 20 | */ 21 | function hex_md5(s) { return rstr2hex(rstr_md5(str2rstr_utf8(s))); } 22 | function b64_md5(s) { return rstr2b64(rstr_md5(str2rstr_utf8(s))); } 23 | function any_md5(s, e) { return rstr2any(rstr_md5(str2rstr_utf8(s)), e); } 24 | function hex_hmac_md5(k, d) 25 | { return rstr2hex(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); } 26 | function b64_hmac_md5(k, d) 27 | { return rstr2b64(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); } 28 | function any_hmac_md5(k, d, e) 29 | { return rstr2any(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d)), e); } 30 | 31 | /* 32 | * Perform a simple self-test to see if the VM is working 33 | */ 34 | function md5_vm_test() 35 | { 36 | return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72"; 37 | } 38 | 39 | /* 40 | * Calculate the MD5 of a raw string 41 | */ 42 | function rstr_md5(s) 43 | { 44 | return binl2rstr(binl_md5(rstr2binl(s), s.length * 8)); 45 | } 46 | 47 | /* 48 | * Calculate the HMAC-MD5, of a key and some data (raw strings) 49 | */ 50 | function rstr_hmac_md5(key, data) 51 | { 52 | var bkey = rstr2binl(key); 53 | if(bkey.length > 16) bkey = binl_md5(bkey, key.length * 8); 54 | 55 | var ipad = Array(16), opad = Array(16); 56 | for(var i = 0; i < 16; i++) 57 | { 58 | ipad[i] = bkey[i] ^ 0x36363636; 59 | opad[i] = bkey[i] ^ 0x5C5C5C5C; 60 | } 61 | 62 | var hash = binl_md5(ipad.concat(rstr2binl(data)), 512 + data.length * 8); 63 | return binl2rstr(binl_md5(opad.concat(hash), 512 + 128)); 64 | } 65 | 66 | /* 67 | * Convert a raw string to a hex string 68 | */ 69 | function rstr2hex(input) 70 | { 71 | try { hexcase } catch(e) { hexcase=0; } 72 | var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; 73 | var output = ""; 74 | var x; 75 | for(var i = 0; i < input.length; i++) 76 | { 77 | x = input.charCodeAt(i); 78 | output += hex_tab.charAt((x >>> 4) & 0x0F) 79 | + hex_tab.charAt( x & 0x0F); 80 | } 81 | return output; 82 | } 83 | 84 | /* 85 | * Convert a raw string to a base-64 string 86 | */ 87 | function rstr2b64(input) 88 | { 89 | try { b64pad } catch(e) { b64pad=''; } 90 | var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 91 | var output = ""; 92 | var len = input.length; 93 | for(var i = 0; i < len; i += 3) 94 | { 95 | var triplet = (input.charCodeAt(i) << 16) 96 | | (i + 1 < len ? input.charCodeAt(i+1) << 8 : 0) 97 | | (i + 2 < len ? input.charCodeAt(i+2) : 0); 98 | for(var j = 0; j < 4; j++) 99 | { 100 | if(i * 8 + j * 6 > input.length * 8) output += b64pad; 101 | else output += tab.charAt((triplet >>> 6*(3-j)) & 0x3F); 102 | } 103 | } 104 | return output; 105 | } 106 | 107 | /* 108 | * Convert a raw string to an arbitrary string encoding 109 | */ 110 | function rstr2any(input, encoding) 111 | { 112 | var divisor = encoding.length; 113 | var i, j, q, x, quotient; 114 | 115 | /* Convert to an array of 16-bit big-endian values, forming the dividend */ 116 | var dividend = Array(Math.ceil(input.length / 2)); 117 | for(i = 0; i < dividend.length; i++) 118 | { 119 | dividend[i] = (input.charCodeAt(i * 2) << 8) | input.charCodeAt(i * 2 + 1); 120 | } 121 | 122 | /* 123 | * Repeatedly perform a long division. The binary array forms the dividend, 124 | * the length of the encoding is the divisor. Once computed, the quotient 125 | * forms the dividend for the next step. All remainders are stored for later 126 | * use. 127 | */ 128 | var full_length = Math.ceil(input.length * 8 / 129 | (Math.log(encoding.length) / Math.log(2))); 130 | var remainders = Array(full_length); 131 | for(j = 0; j < full_length; j++) 132 | { 133 | quotient = Array(); 134 | x = 0; 135 | for(i = 0; i < dividend.length; i++) 136 | { 137 | x = (x << 16) + dividend[i]; 138 | q = Math.floor(x / divisor); 139 | x -= q * divisor; 140 | if(quotient.length > 0 || q > 0) 141 | quotient[quotient.length] = q; 142 | } 143 | remainders[j] = x; 144 | dividend = quotient; 145 | } 146 | 147 | /* Convert the remainders to the output string */ 148 | var output = ""; 149 | for(i = remainders.length - 1; i >= 0; i--) 150 | output += encoding.charAt(remainders[i]); 151 | 152 | return output; 153 | } 154 | 155 | /* 156 | * Encode a string as utf-8. 157 | * For efficiency, this assumes the input is valid utf-16. 158 | */ 159 | function str2rstr_utf8(input) 160 | { 161 | var output = ""; 162 | var i = -1; 163 | var x, y; 164 | 165 | while(++i < input.length) 166 | { 167 | /* Decode utf-16 surrogate pairs */ 168 | x = input.charCodeAt(i); 169 | y = i + 1 < input.length ? input.charCodeAt(i + 1) : 0; 170 | if(0xD800 <= x && x <= 0xDBFF && 0xDC00 <= y && y <= 0xDFFF) 171 | { 172 | x = 0x10000 + ((x & 0x03FF) << 10) + (y & 0x03FF); 173 | i++; 174 | } 175 | 176 | /* Encode output as utf-8 */ 177 | if(x <= 0x7F) 178 | output += String.fromCharCode(x); 179 | else if(x <= 0x7FF) 180 | output += String.fromCharCode(0xC0 | ((x >>> 6 ) & 0x1F), 181 | 0x80 | ( x & 0x3F)); 182 | else if(x <= 0xFFFF) 183 | output += String.fromCharCode(0xE0 | ((x >>> 12) & 0x0F), 184 | 0x80 | ((x >>> 6 ) & 0x3F), 185 | 0x80 | ( x & 0x3F)); 186 | else if(x <= 0x1FFFFF) 187 | output += String.fromCharCode(0xF0 | ((x >>> 18) & 0x07), 188 | 0x80 | ((x >>> 12) & 0x3F), 189 | 0x80 | ((x >>> 6 ) & 0x3F), 190 | 0x80 | ( x & 0x3F)); 191 | } 192 | return output; 193 | } 194 | 195 | /* 196 | * Encode a string as utf-16 197 | */ 198 | function str2rstr_utf16le(input) 199 | { 200 | var output = ""; 201 | for(var i = 0; i < input.length; i++) 202 | output += String.fromCharCode( input.charCodeAt(i) & 0xFF, 203 | (input.charCodeAt(i) >>> 8) & 0xFF); 204 | return output; 205 | } 206 | 207 | function str2rstr_utf16be(input) 208 | { 209 | var output = ""; 210 | for(var i = 0; i < input.length; i++) 211 | output += String.fromCharCode((input.charCodeAt(i) >>> 8) & 0xFF, 212 | input.charCodeAt(i) & 0xFF); 213 | return output; 214 | } 215 | 216 | /* 217 | * Convert a raw string to an array of little-endian words 218 | * Characters >255 have their high-byte silently ignored. 219 | */ 220 | function rstr2binl(input) 221 | { 222 | var output = Array(input.length >> 2); 223 | for(var i = 0; i < output.length; i++) 224 | output[i] = 0; 225 | for(var i = 0; i < input.length * 8; i += 8) 226 | output[i>>5] |= (input.charCodeAt(i / 8) & 0xFF) << (i%32); 227 | return output; 228 | } 229 | 230 | /* 231 | * Convert an array of little-endian words to a string 232 | */ 233 | function binl2rstr(input) 234 | { 235 | var output = ""; 236 | for(var i = 0; i < input.length * 32; i += 8) 237 | output += String.fromCharCode((input[i>>5] >>> (i % 32)) & 0xFF); 238 | return output; 239 | } 240 | 241 | /* 242 | * Calculate the MD5 of an array of little-endian words, and a bit length. 243 | */ 244 | function binl_md5(x, len) 245 | { 246 | /* append padding */ 247 | x[len >> 5] |= 0x80 << ((len) % 32); 248 | x[(((len + 64) >>> 9) << 4) + 14] = len; 249 | 250 | var a = 1732584193; 251 | var b = -271733879; 252 | var c = -1732584194; 253 | var d = 271733878; 254 | 255 | for(var i = 0; i < x.length; i += 16) 256 | { 257 | var olda = a; 258 | var oldb = b; 259 | var oldc = c; 260 | var oldd = d; 261 | 262 | a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); 263 | d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); 264 | c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); 265 | b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); 266 | a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); 267 | d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); 268 | c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); 269 | b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); 270 | a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); 271 | d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); 272 | c = md5_ff(c, d, a, b, x[i+10], 17, -42063); 273 | b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); 274 | a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); 275 | d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); 276 | c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); 277 | b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); 278 | 279 | a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); 280 | d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); 281 | c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); 282 | b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); 283 | a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); 284 | d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); 285 | c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); 286 | b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); 287 | a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); 288 | d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); 289 | c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); 290 | b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); 291 | a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); 292 | d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); 293 | c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); 294 | b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); 295 | 296 | a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); 297 | d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); 298 | c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); 299 | b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); 300 | a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); 301 | d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); 302 | c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); 303 | b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); 304 | a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); 305 | d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); 306 | c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); 307 | b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); 308 | a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); 309 | d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); 310 | c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); 311 | b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); 312 | 313 | a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); 314 | d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); 315 | c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); 316 | b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); 317 | a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); 318 | d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); 319 | c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); 320 | b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); 321 | a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); 322 | d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); 323 | c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); 324 | b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); 325 | a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); 326 | d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); 327 | c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); 328 | b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); 329 | 330 | a = safe_add(a, olda); 331 | b = safe_add(b, oldb); 332 | c = safe_add(c, oldc); 333 | d = safe_add(d, oldd); 334 | } 335 | return Array(a, b, c, d); 336 | } 337 | 338 | /* 339 | * These functions implement the four basic operations the algorithm uses. 340 | */ 341 | function md5_cmn(q, a, b, x, s, t) 342 | { 343 | return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); 344 | } 345 | function md5_ff(a, b, c, d, x, s, t) 346 | { 347 | return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); 348 | } 349 | function md5_gg(a, b, c, d, x, s, t) 350 | { 351 | return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); 352 | } 353 | function md5_hh(a, b, c, d, x, s, t) 354 | { 355 | return md5_cmn(b ^ c ^ d, a, b, x, s, t); 356 | } 357 | function md5_ii(a, b, c, d, x, s, t) 358 | { 359 | return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); 360 | } 361 | 362 | /* 363 | * Add integers, wrapping at 2^32. 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