friendica/addon/piwik/piwik.php

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<?php
/* Piwik Analytics Plugin for Friendika
*
* Author: Tobias Diekershoff
* tobias.diekershoff@gmx.net
*
* License: 3-clause BSD license (same as Friendika)
*
* Configuration:
* Add the following two lines to your .htconfig.php file:
*
* $a->config['piwik']['baseurl'] = 'www.example.com/piwik/';
* $a->config['piwik']['sideid'] = '1';
* $a->config['piwik']['optout'] = true; // set to false to disable
*
* Change the sideid to the ID that the Piwik tracker for your Friendika
* installation has. Alter the baseurl to fit your needs, don't care
* about http/https but beware to put the trailing / at the end of your
* setting.
2011-02-08 14:39:59 +01:00
*
* Documentation see http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/Piwik_Plugin
*/
function piwik_install() {
register_hook('page_end', 'addon/piwik/piwik.php', 'piwik_analytics');
logger("installed piwik plugin");
}
function piwik_uninstall() {
unregister_hook('page_end', 'addon/piwik/piwik.php', 'piwik_analytics');
logger("uninstalled piwik plugin");
}
function piwik_analytics($a,&$b) {
/*
* styling of every HTML block added by this plugin is done in the
* associated CSS file. We just have to tell Friendika to get it
* into the page header.
*/
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/piwik/piwik.css' . '" media="all" />' . "\r\n";
/*
* Get the configuration variables from the .htconfig file.
*/
$baseurl = get_config('piwik','baseurl');
$sideod = get_config('piwik','sideid');
$optout = get_config('piwik','optout');
/*
* Add the Piwik code for the side.
*/
$b .= "<div id='piwik-code-block'> <!-- Piwik -->\r\n <script type=\"text/javascript\">\r\n var pkBaseURL = ((\"https:\" == document.location.protocol) ? \"https://".$baseurl."\" : \"http://".$baseurl."\");\r\n document.write(unescape(\"%3Cscript src='\" + pkBaseURL + \"piwik.js' type='text/javascript'%3E%3C/script%3E\"));\r\n </script>\r\n<script type=\"text/javascript\">\r\n try {\r\n var piwikTracker = Piwik.getTracker(pkBaseURL + \"piwik.php\", 8);\r\n piwikTracker.trackPageView();\r\n piwikTracker.enableLinkTracking();\r\n }\r\n catch( err ) {}\r\n </script>\r\n<noscript><p><img src=\"http://".$baseurl."/piwik.php?idsite=8\" style=\"border:0\" alt=\"\" /></p></noscript>\r\n <!-- End Piwik Tracking Tag --> </div>";
/*
* If the optout variable is set to true then display the notice
* otherwise just include the above code into the page.
*/
if ($optout) {
$b .= "<div id='piwik-optout-link'>This website is tracked using the <a href='http://www.piwik.org'>Piwik</a> analytics tool. If you do not want that your visits are logged this way you <a href='http://". $baseurl ."index.php?module=CoreAdminHome&action=optOut'>can set a cookie to prevent Piwik from tracking further visits of the site</a> (opt-out).</div>";
}
}