516161213f
Piwik's current default recommended JS for loading creates a <script> tag via document.write(). In addition to being generally evil, this means the browser doesn't know it's going to need piwik.js until that chunk of script gets executed... which can't happen until all scripts referenced *before* it have been loaded and executed. The only reason for that bit of script though seems to be to pick 'http' or 'https' depending on the current page's scheme. This can be done more simply by using a protocol-relative link (eg "//piwik.status.net/piwik.js"), which the browser will resolve as appropriate. Since it's now sitting in the <script> tag, the browser's lookahead code will now see it and be able to start loading it while earlier things are parsing/executing. May be better still to move to an asynchronous load after DOM-ready, but I'm not sure if that'll screw with the analytics code (eg, not being able to start things on the DOM-ready events since they're past).
117 lines
4.2 KiB
PHP
117 lines
4.2 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Plugin to use Piwik Analytics
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @author Tobias Diekershoff <tobias.diekershoff@gmx.net>
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* @copyright 2008 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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/**
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* Plugin to use Piwik Analytics (based on the Google Analytics plugin by Evan)
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*
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* This plugin will spoot out the correct JavaScript spell to invoke
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* Piwik Analytics on a page.
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*
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* To use this plugin add the following to your config.php
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*
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* addPlugin('PiwikAnalytics', array('piwikroot' => 'example.com/piwik/',
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* 'piwikId' => 'id'));
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*
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* Replace 'example.com/piwik/' with the URL to your Piwik installation and
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* make sure you don't forget the final /.
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* Replace 'id' with the ID your statusnet installation has in your Piwik
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* analytics setup - for example '8'.
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*
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*/
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class PiwikAnalyticsPlugin extends Plugin
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{
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/** the base of your Piwik installation */
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public $piwikroot = null;
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/** the Piwik Id of your statusnet installation */
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public $piwikId = null;
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/**
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* constructor
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*
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* @param string $root Piwik root URL
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* @param string $id Piwik ID of this app
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*/
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function __construct($root=null, $id=null)
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{
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$this->piwikroot = $root;
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$this->piwikId = $id;
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parent::__construct();
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}
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/**
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* Called when all scripts have been shown
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*
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* @param Action $action Current action
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*
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* @return boolean ignored
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*/
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function onEndShowScripts($action)
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{
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// Slight modification to the default code.
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// Loading the piwik.js file from a <script> created in a document.write
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// meant that the browser had no way to preload it, ensuring that its
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// loading will be synchronous, blocking further page rendering.
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//
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// User-agents understand protocol-relative links, so instead of the
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// URL produced in JS we can just give a universal one. Since it's
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// sitting there in the DOM ready to go, the browser can preload the
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// file for us and we're less likely to have to wait for it.
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$piwikUrl = '//' . $this->piwikroot . 'piwik.js';
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$piwikCode = <<<ENDOFPIWIK
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try {
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var pkBaseURL = (("https:" == document.location.protocol) ? "https://{$this->piwikroot}" : "http://{$this->piwikroot}");
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var piwikTracker = Piwik.getTracker(pkBaseURL + "piwik.php", {$this->piwikId});
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piwikTracker.trackPageView();
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piwikTracker.enableLinkTracking();
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} catch( err ) {}
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ENDOFPIWIK;
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// Don't use $action->script() here; it'll try to preface the URL.
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$action->element('script', array('type' => 'text/javascript', 'src' => $piwikUrl), ' ');
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$action->inlineScript($piwikCode);
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return true;
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}
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function onPluginVersion(&$versions)
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{
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$versions[] = array('name' => 'PiwikAnalytics',
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'version' => STATUSNET_VERSION,
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'author' => 'Tobias Diekershoff, Evan Prodromou',
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'homepage' => 'http://status.net/wiki/Plugin:Piwik',
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'rawdescription' =>
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_m('Use <a href="http://piwik.org/">Piwik</a> Open Source web analytics software.'));
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return true;
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}
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}
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