Merge pull request #618 from calzoneman/gdrive-userscript

Implement last resort solution: Google Drive userscript

NEWS.md

@@ -1,3 +1,16 @@
+2016-08-23
+==========
+
+A few weeks ago, the previous Google Drive player stopped working.  This is
+nothing new; Google Drive has consistently broken a few times a year ever since
+support for it was added.  However, it's becoming increasingly difficult and
+complicated to provide good support for Google Drive, so I've made the decision
+to phase out the native player and require a userscript for it, in order to
+bypass CORS and allow each browser to request the video stream itself.
+
+See [the updated documentation](docs/gdrive-userscript-serveradmins.md) for
+details on how to enable this for your users.
+
 2016-04-27
 ==========
 

build-player.js

@@ -8,6 +8,7 @@ var order = [
     'youtube.coffee',
     'dailymotion.coffee',
     'videojs.coffee',
+    'gdrive-player.coffee',
     'raw-file.coffee',
     'soundcloud.coffee',
     'embed.coffee',

docs/gdrive-userscript-serveradmins.md

@@ -0,0 +1,24 @@
+# Google Drive Userscript Setup
+
+In response to increasing difficulty and complexity of maintaining Google Drive
+support, the native player is being phased out in favor of requiring a
+userscript to allow each client to fetch the video stream links for themselves.
+Users will be prompted with a link to `/google_drive_userscript`, which explains
+the situation and instructs how to install the userscript.
+
+As a server admin, you must generate the userscript from the template by using
+the following command:
+
+```sh
+npm run generate-userscript <site name> <url> [<url>...]
+```
+
+The first argument is the site name as it will appear in the userscript title.
+The remaining arguments are the URL patterns on which the script will run.  For
+example, for cytu.be I use:
+
+```sh
+npm run generate-userscript CyTube http://cytu.be/r/* https://cytu.be/r/*
+```
+
+This will generate `www/js/cytube-google-drive.user.js`.

gdrive-userscript/cytube-google-drive.user.js

@@ -0,0 +1,210 @@
+// ==UserScript==
+// @name Google Drive Video Player for {SITENAME}
+// @namespace gdcytube
+// @description Play Google Drive videos on {SITENAME}
+// {INCLUDE_BLOCK}
+// @grant unsafeWindow
+// @grant GM_xmlhttpRequest
+// @connect docs.google.com
+// @run-at document-end
+// @version 1.1.0
+// ==/UserScript==
+
+try {
+    function debug(message) {
+        if (!unsafeWindow.enableCyTubeGoogleDriveUserscriptDebug) {
+            return;
+        }
+
+        try {
+            unsafeWindow.console.log(message);
+        } catch (error) {
+            unsafeWindow.console.error(error);
+        }
+    }
+
+    var ITAG_QMAP = {
+        37: 1080,
+        46: 1080,
+        22: 720,
+        45: 720,
+        59: 480,
+        44: 480,
+        35: 480,
+        18: 360,
+        43: 360,
+        34: 360
+    };
+
+    var ITAG_CMAP = {
+        43: 'video/webm',
+        44: 'video/webm',
+        45: 'video/webm',
+        46: 'video/webm',
+        18: 'video/mp4',
+        22: 'video/mp4',
+        37: 'video/mp4',
+        59: 'video/mp4',
+        35: 'video/flv',
+        34: 'video/flv'
+    };
+
+    function getVideoInfo(id, cb) {
+        var url = 'https://docs.google.com/file/d/' + id + '/get_video_info';
+        debug('Fetching ' + url);
+
+        GM_xmlhttpRequest({
+            method: 'GET',
+            url: url,
+            onload: function (res) {
+                try {
+                    debug('Got response ' + res.responseText);
+                    var data = {};
+                    var error;
+                    res.responseText.split('&').forEach(function (kv) {
+                        var pair = kv.split('=');
+                        data[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+                    });
+
+                    if (data.status === 'fail') {
+                        error = new Error('Google Docs request failed: ' +
+                                'metadata indicated status=fail');
+                        error.response = res.responseText;
+                        error.reason = 'RESPONSE_STATUS_FAIL';
+                        return cb(error);
+                    }
+
+                    if (!data.fmt_stream_map) {
+                        error = new Error('Google Docs request failed: ' +
+                                'metadata lookup returned no valid links');
+                        error.response = res.responseText;
+                        error.reason = 'MISSING_LINKS';
+                        return cb(error);
+                    }
+
+                    data.links = {};
+                    data.fmt_stream_map.split(',').forEach(function (item) {
+                        var pair = item.split('|');
+                        data.links[pair[0]] = pair[1];
+                    });
+                    data.videoMap = mapLinks(data.links);
+
+                    cb(null, data);
+                } catch (error) {
+                    unsafeWindow.console.error(error);
+                }
+            },
+
+            onerror: function () {
+                var error = new Error('Google Docs request failed: ' +
+                        'metadata lookup HTTP request failed');
+                error.reason = 'HTTP_ONERROR';
+                return cb(error);
+            }
+        });
+    }
+
+    function mapLinks(links) {
+        var videos = {
+            1080: [],
+            720: [],
+            480: [],
+            360: []
+        };
+
+        Object.keys(links).forEach(function (itag) {
+            itag = parseInt(itag, 10);
+            if (!ITAG_QMAP.hasOwnProperty(itag)) {
+                return;
+            }
+
+            videos[ITAG_QMAP[itag]].push({
+                itag: itag,
+                contentType: ITAG_CMAP[itag],
+                link: links[itag]
+            });
+        });
+
+        return videos;
+    }
+
+    /*
+     * Greasemonkey 2.0 has this wonderful sandbox that attempts
+     * to prevent script developers from shooting themselves in
+     * the foot by removing the trigger from the gun, i.e. it's
+     * impossible to cross the boundary between the browser JS VM
+     * and the privileged sandbox that can run GM_xmlhttpRequest().
+     *
+     * So in this case, we have to resort to polling a special
+     * variable to see if getGoogleDriveMetadata needs to be called
+     * and deliver the result into another special variable that is
+     * being polled on the browser side.
+     */
+
+    /*
+     * Browser side function -- sets gdUserscript.pollID to the
+     * ID of the Drive video to be queried and polls
+     * gdUserscript.pollResult for the result.
+     */
+    function getGoogleDriveMetadata_GM(id, callback) {
+        debug('Setting GD poll ID to ' + id);
+        unsafeWindow.gdUserscript.pollID = id;
+        var tries = 0;
+        var i = setInterval(function () {
+            if (unsafeWindow.gdUserscript.pollResult) {
+                debug('Got result');
+                clearInterval(i);
+                var result = unsafeWindow.gdUserscript.pollResult;
+                unsafeWindow.gdUserscript.pollResult = null;
+                callback(result.error, result.result);
+            } else if (++tries > 100) {
+                // Took longer than 10 seconds, give up
+                clearInterval(i);
+            }
+        }, 100);
+    }
+
+    /*
+     * Sandbox side function -- polls gdUserscript.pollID for
+     * the ID of a Drive video to be queried, looks up the
+     * metadata, and stores it in gdUserscript.pollResult
+     */
+    function setupGDPoll() {
+        unsafeWindow.gdUserscript = cloneInto({}, unsafeWindow);
+        var pollInterval = setInterval(function () {
+            if (unsafeWindow.gdUserscript.pollID) {
+                var id = unsafeWindow.gdUserscript.pollID;
+                unsafeWindow.gdUserscript.pollID = null;
+                debug('Polled and got ' + id);
+                getVideoInfo(id, function (error, data) {
+                    unsafeWindow.gdUserscript.pollResult = cloneInto({
+                        error: error,
+                        result: data
+                    }, unsafeWindow);
+                });
+            }
+        }, 1000);
+    }
+
+    function isRunningTampermonkey() {
+        try {
+            return GM_info.scriptHandler === 'Tampermonkey';
+        } catch (error) {
+            return false;
+        }
+    }
+
+    if (isRunningTampermonkey()) {
+        unsafeWindow.getGoogleDriveMetadata = getVideoInfo;
+    } else {
+        debug('Using non-TM polling workaround');
+        unsafeWindow.getGoogleDriveMetadata = exportFunction(
+                getGoogleDriveMetadata_GM, unsafeWindow);
+        setupGDPoll();
+    }
+
+    unsafeWindow.console.log('Initialized userscript Google Drive player');
+    unsafeWindow.hasDriveUserscript = true;
+} catch (error) {
+    unsafeWindow.console.error(error);
+}

gdrive-userscript/generate-userscript.js

@@ -0,0 +1,19 @@
+var fs = require('fs');
+var path = require('path');
+
+var sitename = process.argv[2];
+var includes = process.argv.slice(3).map(function (include) {
+    return '// @include ' + include;
+}).join('\n');
+
+var lines = String(fs.readFileSync(
+        path.resolve(__dirname, 'cytube-google-drive.user.js'))).split('\n');
+lines.forEach(function (line) {
+    if (line.match(/\{INCLUDE_BLOCK\}/)) {
+        console.log(includes);
+    } else if (line.match(/\{SITENAME\}/)) {
+        console.log(line.replace(/\{SITENAME\}/, sitename));
+    } else {
+        console.log(line);
+    }
+});

package.json

@@ -2,7 +2,7 @@
   "author": "Calvin Montgomery",
   "name": "CyTube",
   "description": "Online media synchronizer and chat",
-  "version": "3.19.0",
+  "version": "3.20.0",
   "repository": {
     "url": "http://github.com/calzoneman/sync"
   },
@@ -47,7 +47,8 @@
     "build-player": "$npm_node_execpath build-player.js",
     "build-server": "babel -D --source-maps --loose es6.destructuring,es6.forOf --out-dir lib/ src/",
     "postinstall": "./postinstall.sh",
-    "server-dev": "babel -D --watch --source-maps --loose es6.destructuring,es6.forOf --out-dir lib/ src/"
+    "server-dev": "babel -D --watch --source-maps --loose es6.destructuring,es6.forOf --out-dir lib/ src/",
+    "generate-userscript": "$npm_node_execpath gdrive-userscript/generate-userscript $@ > www/js/cytube-google-drive.user.js"
   },
   "devDependencies": {
     "coffee-script": "^1.9.2"

player/gdrive-player.coffee

@@ -0,0 +1,22 @@
+window.GoogleDrivePlayer = class GoogleDrivePlayer extends VideoJSPlayer
+    constructor: (data) ->
+        if not (this instanceof GoogleDrivePlayer)
+            return new GoogleDrivePlayer(data)
+
+        super(data)
+
+    load: (data) ->
+        if typeof window.getGoogleDriveMetadata is 'function'
+            window.getGoogleDriveMetadata(data.id, (error, metadata) =>
+                if error
+                    console.error(error)
+                    alertBox = window.document.createElement('div')
+                    alertBox.className = 'alert alert-danger'
+                    alertBox.textContent = error.message
+                    document.getElementById('ytapiplayer').appendChild(alertBox)
+                else
+                    data.meta.direct = metadata.videoMap
+                    super(data)
+            )
+        else
+            super(data)

player/gdrive-youtube.coffee

@@ -7,6 +7,7 @@ window.GoogleDriveYouTubePlayer = class GoogleDriveYouTubePlayer extends Player
         @init(data)
 
     init: (data) ->
+        window.promptToInstallDriveUserscript()
         embed = $('<embed />').attr(
             type: 'application/x-shockwave-flash'
             src: "https://www.youtube.com/get_player?docid=#{data.id}&ps=docs\
@@ -102,3 +103,30 @@ window.GoogleDriveYouTubePlayer = class GoogleDriveYouTubePlayer extends Player
                 cb(@yt.getVolume() / 100)
         else
             cb(VOLUME)
+
+window.promptToInstallDriveUserscript = ->
+    if document.getElementById('prompt-install-drive-userscript')
+        return
+    alertBox = document.createElement('div')
+    alertBox.id = 'prompt-install-drive-userscript'
+    alertBox.className = 'alert alert-info'
+    alertBox.innerHTML = """
+Due to continual breaking changes making it increasingly difficult to
+maintain Google Drive support, you can now install a userscript that
+simplifies the code and has better compatibility.  In the future, the
+old player will be removed."""
+    alertBox.appendChild(document.createElement('br'))
+    infoLink = document.createElement('a')
+    infoLink.className = 'btn btn-info'
+    infoLink.href = '/google_drive_userscript'
+    infoLink.textContent = 'Click here for details'
+    infoLink.target = '_blank'
+    alertBox.appendChild(infoLink)
+
+    closeButton = document.createElement('button')
+    closeButton.className = 'close pull-right'
+    closeButton.innerHTML = '&times;'
+    closeButton.onclick = ->
+        alertBox.parentNode.removeChild(alertBox)
+    alertBox.insertBefore(closeButton, alertBox.firstChild)
+    document.getElementById('videowrap').appendChild(alertBox)

player/update.coffee

@@ -2,7 +2,7 @@ TYPE_MAP =
     yt: YouTubePlayer
     vi: VimeoPlayer
     dm: DailymotionPlayer
-    gd: GoogleDriveYouTubePlayer
+    gd: GoogleDrivePlayer
     gp: VideoJSPlayer
     fi: FilePlayer
     jw: FilePlayer
@@ -32,8 +32,8 @@ window.loadMediaPlayer = (data) ->
             console.error e
     else if data.type is 'gd'
         try
-            if data.meta.html5hack
-                window.PLAYER = new VideoJSPlayer(data)
+            if data.meta.html5hack or window.hasDriveUserscript
+                window.PLAYER = new GoogleDrivePlayer(data)
             else
                 window.PLAYER = new GoogleDriveYouTubePlayer(data)
         catch e

player/videojs.coffee

@@ -43,8 +43,7 @@ window.VideoJSPlayer = class VideoJSPlayer extends Player
         if not (this instanceof VideoJSPlayer)
             return new VideoJSPlayer(data)
 
-        @setMediaProperties(data)
-        @loadPlayer(data)
+        @load(data)
 
     loadPlayer: (data) ->
         waitUntilDefined(window, 'videojs', =>
@@ -94,6 +93,8 @@ window.VideoJSPlayer = class VideoJSPlayer extends Player
                             @player.src(@sources[@sourceIdx])
                         else
                             console.error('Out of sources, video will not play')
+                            if @mediaType is 'gd' and not window.hasDriveUserscript
+                                window.promptToInstallDriveUserscript()
                 )
                 @setVolume(VOLUME)
                 @player.on('ended', ->

src/web/pug.js

@@ -36,6 +36,9 @@ function getBaseUrl(res) {
  * Renders and serves a pug template
  */
 function sendPug(res, view, locals) {
+    if (!locals) {
+        locals = {};
+    }
     locals.loggedIn = locals.loggedIn || !!res.user;
     locals.loginName = locals.loginName || res.user ? res.user.name : false;
     locals.superadmin = locals.superadmin || res.user ? res.user.global_rank >= 255 : false;

src/web/routes/google_drive_userscript.js

@@ -0,0 +1,7 @@
+import { sendPug } from '../pug';
+
+export default function initialize(app) {
+    app.get('/google_drive_userscript', (req, res) => {
+        return sendPug(res, 'google_drive_userscript')
+    });
+}

src/web/webserver.js

@@ -177,6 +177,7 @@ module.exports = {
         require('./account').init(app);
         require('./acp').init(app);
         require('../google2vtt').attach(app);
+        require('./routes/google_drive_userscript')(app);
         app.use(serveStatic(path.join(__dirname, '..', '..', 'www'), {
             maxAge: webConfig.getCacheTTL()
         }));

templates/google_drive_userscript.pug

@@ -0,0 +1,74 @@
+doctype html
+html(lang="en")
+  head
+    include head
+    +head()
+  body
+    #wrap
+      nav.navbar.navbar-inverse.navbar-fixed-top(role="navigation")
+        include nav
+        +navheader()
+        #nav-collapsible.collapse.navbar-collapse
+          ul.nav.navbar-nav
+            +navdefaultlinks("/google_drive_userscript")
+          +navloginlogout("/google_drive_userscript")
+      section#mainpage
+        .container
+          .col-md-8.col-md-offset-2
+            h1 Google Drive Userscript
+            h2 Why?
+            p.
+              Since Google Drive support was launched in early 2014, it has broken
+              at least 4-5 times, requiring increasing effort to get it working again
+              and disrupting many channels.  This is because there is no official API
+              for it like there is for YouTube videos, which means support for it
+              relies on undocumented tricks.  In August 2016, the decision was made
+              to phase out the native support for Google Drive and instead require
+              users to install a userscript, which allows to bypass certain browser
+              restrictions and make the code easier, simpler, and less prone to failure
+              (it could still break due to future Google Drive changes, but is less
+              likely to be difficult to fix).
+            h2 How It Works
+            p.
+              The userscript is a short script that you can install using a browser
+              extension such as Greasemonkey or Tampermonkey that runs on the page
+              and provides additional functionality needed to play Google Drive
+              videos.
+            h2 Installation
+            ul
+              li
+                strong Chrome
+                | &mdash;Install <a href="https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo" target="_blank">Tampermonkey</a>.
+              li
+                strong Firefox
+                | &mdash;Install <a href="https://addons.mozilla.org/en-US/firefox/addon/tampermonkey/" target="_blank">Tampermonkey</a>
+                | or <a href="https://addons.mozilla.org/en-US/firefox/addon/greasemonkey/" target="_blank">Greasemonkey</a>.
+              li
+                strong Other Browsers
+                | &mdash;Install the appropriate userscript plugin for your browser.
+                | Tampermonkey supports many browsers besides Chrome.
+            p.
+              Once you have installed the userscript manager addon for your browser,
+              you can <a href="/js/cytube-google-drive.user.js?v=1.1" target="_blank">
+              install the userscript</a>.  If this link 404s, it means the administrator
+              of this server hasn't generated it yet.
+            p.
+              You can find a guide with screenshots of the installation process
+              <a href="https://github.com/calzoneman/sync/wiki/Google-Drive-Userscript-Installation-Guide" target="_blank">on GitHub</a>.
+
+    include footer
+    +footer()
+    script(type="text/javascript").
+      function showEmail(btn, email, key) {
+        email = unescape(email);
+        key = unescape(key);
+        var dest = new Array(email.length);
+        for (var i = 0; i < email.length; i++) {
+          dest[i] = String.fromCharCode(email.charCodeAt(i) ^ key.charCodeAt(i % key.length));
+        }
+        email = dest.join("");
+        $("<a/>").attr("href", "mailto:" + email)
+          .text(email)
+          .insertBefore(btn);
+        $(btn).remove();
+      }

www/js/data.js

@@ -216,3 +216,5 @@ function eraseCookie(name) {
 
 /* to be implemented in callbacks.js */
 function setupCallbacks() { }
+
+window.enableCyTubeGoogleDriveUserscriptDebug = getOrDefault("cytube_drive_debug", false);

www/js/player.js

@@ -1,5 +1,5 @@
 (function() {
-  var CUSTOM_EMBED_WARNING, CustomEmbedPlayer, DEFAULT_ERROR, DailymotionPlayer, EmbedPlayer, FilePlayer, GoogleDriveYouTubePlayer, HITBOX_ERROR, HLSPlayer, HitboxPlayer, ImgurPlayer, LivestreamPlayer, Player, RTMPPlayer, SoundCloudPlayer, TYPE_MAP, TwitchPlayer, USTREAM_ERROR, UstreamPlayer, VideoJSPlayer, VimeoPlayer, YouTubePlayer, codecToMimeType, genParam, sortSources,
+  var CUSTOM_EMBED_WARNING, CustomEmbedPlayer, DEFAULT_ERROR, DailymotionPlayer, EmbedPlayer, FilePlayer, GoogleDrivePlayer, GoogleDriveYouTubePlayer, HITBOX_ERROR, HLSPlayer, HitboxPlayer, ImgurPlayer, LivestreamPlayer, Player, RTMPPlayer, SoundCloudPlayer, TYPE_MAP, TwitchPlayer, USTREAM_ERROR, UstreamPlayer, VideoJSPlayer, VimeoPlayer, YouTubePlayer, codecToMimeType, genParam, sortSources,
     extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
     hasProp = {}.hasOwnProperty;
 
@@ -503,8 +503,7 @@
       if (!(this instanceof VideoJSPlayer)) {
         return new VideoJSPlayer(data);
       }
-      this.setMediaProperties(data);
-      this.loadPlayer(data);
+      this.load(data);
     }
 
     VideoJSPlayer.prototype.loadPlayer = function(data) {
@@ -559,7 +558,10 @@
                 if (_this.sourceIdx < _this.sources.length) {
                   return _this.player.src(_this.sources[_this.sourceIdx]);
                 } else {
-                  return console.error('Out of sources, video will not play');
+                  console.error('Out of sources, video will not play');
+                  if (_this.mediaType === 'gd' && !window.hasDriveUserscript) {
+                    return window.promptToInstallDriveUserscript();
+                  }
                 }
               }
             });
@@ -666,6 +668,42 @@
 
   })(Player);
 
+  window.GoogleDrivePlayer = GoogleDrivePlayer = (function(superClass) {
+    extend(GoogleDrivePlayer, superClass);
+
+    function GoogleDrivePlayer(data) {
+      if (!(this instanceof GoogleDrivePlayer)) {
+        return new GoogleDrivePlayer(data);
+      }
+      GoogleDrivePlayer.__super__.constructor.call(this, data);
+    }
+
+    GoogleDrivePlayer.prototype.load = function(data) {
+      if (typeof window.getGoogleDriveMetadata === 'function') {
+        return window.getGoogleDriveMetadata(data.id, (function(_this) {
+          return function(error, metadata) {
+            var alertBox;
+            if (error) {
+              console.error(error);
+              alertBox = window.document.createElement('div');
+              alertBox.className = 'alert alert-danger';
+              alertBox.textContent = error.message;
+              return document.getElementById('ytapiplayer').appendChild(alertBox);
+            } else {
+              data.meta.direct = metadata.videoMap;
+              return GoogleDrivePlayer.__super__.load.call(_this, data);
+            }
+          };
+        })(this));
+      } else {
+        return GoogleDrivePlayer.__super__.load.call(this, data);
+      }
+    };
+
+    return GoogleDrivePlayer;
+
+  })(VideoJSPlayer);
+
   codecToMimeType = function(codec) {
     switch (codec) {
       case 'mov/h264':
@@ -1144,6 +1182,7 @@
 
     GoogleDriveYouTubePlayer.prototype.init = function(data) {
       var embed;
+      window.promptToInstallDriveUserscript();
       embed = $('<embed />').attr({
         type: 'application/x-shockwave-flash',
         src: "https://www.youtube.com/get_player?docid=" + data.id + "&ps=docs&partnerid=30&enablejsapi=1&cc_load_policy=1&auth_timeout=86400000000",
@@ -1273,6 +1312,32 @@
 
   })(Player);
 
+  window.promptToInstallDriveUserscript = function() {
+    var alertBox, closeButton, infoLink;
+    if (document.getElementById('prompt-install-drive-userscript')) {
+      return;
+    }
+    alertBox = document.createElement('div');
+    alertBox.id = 'prompt-install-drive-userscript';
+    alertBox.className = 'alert alert-info';
+    alertBox.innerHTML = "Due to continual breaking changes making it increasingly difficult to\nmaintain Google Drive support, you can now install a userscript that\nsimplifies the code and has better compatibility.  In the future, the\nold player will be removed.";
+    alertBox.appendChild(document.createElement('br'));
+    infoLink = document.createElement('a');
+    infoLink.className = 'btn btn-info';
+    infoLink.href = '/google_drive_userscript';
+    infoLink.textContent = 'Click here for details';
+    infoLink.target = '_blank';
+    alertBox.appendChild(infoLink);
+    closeButton = document.createElement('button');
+    closeButton.className = 'close pull-right';
+    closeButton.innerHTML = '&times;';
+    closeButton.onclick = function() {
+      return alertBox.parentNode.removeChild(alertBox);
+    };
+    alertBox.insertBefore(closeButton, alertBox.firstChild);
+    return document.getElementById('videowrap').appendChild(alertBox);
+  };
+
   window.HLSPlayer = HLSPlayer = (function(superClass) {
     extend(HLSPlayer, superClass);
 
@@ -1308,7 +1373,7 @@
     yt: YouTubePlayer,
     vi: VimeoPlayer,
     dm: DailymotionPlayer,
-    gd: GoogleDriveYouTubePlayer,
+    gd: GoogleDrivePlayer,
     gp: VideoJSPlayer,
     fi: FilePlayer,
     jw: FilePlayer,
@@ -1344,8 +1409,8 @@
       }
     } else if (data.type === 'gd') {
       try {
-        if (data.meta.html5hack) {
-          return window.PLAYER = new VideoJSPlayer(data);
+        if (data.meta.html5hack || window.hasDriveUserscript) {
+          return window.PLAYER = new GoogleDrivePlayer(data);
         } else {
           return window.PLAYER = new GoogleDriveYouTubePlayer(data);
         }