From 0d880d0d14f61ec36fc6f659d0e60418156473eb Mon Sep 17 00:00:00 2001
From: Tobias Diekershoff <tobias.diekershoff@gmx.net>
Date: Fri, 13 Mar 2009 08:52:01 -0400
Subject: Piwik analytics plugin

Piwik (http://piwik.org/) is an Open Source analytics engine. This
plugin lets you include Piwik in your Laconica installation.
---
 plugins/PiwikAnalyticsPlugin.php | 104 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 plugins/PiwikAnalyticsPlugin.php

diff --git a/plugins/PiwikAnalyticsPlugin.php b/plugins/PiwikAnalyticsPlugin.php
new file mode 100644
index 000000000..d2c52354e
--- /dev/null
+++ b/plugins/PiwikAnalyticsPlugin.php
@@ -0,0 +1,104 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Plugin to use Piwik Analytics
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Plugin
+ * @package   Laconica
+ * @author    Evan Prodromou <evan@controlyourself.ca>
+ * @author    Tobias Diekershoff <tobias.diekershoff@gmx.net>
+ * @copyright 2008 Control Yourself, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://laconi.ca/
+ */
+
+if (!defined('LACONICA')) {
+    exit(1);
+}
+
+/**
+ * Plugin to use Piwik Analytics (based on the Google Analytics plugin by Evan)
+ *
+ * This plugin will spoot out the correct JavaScript spell to invoke
+ * Piwik Analytics on a page.
+ *
+ * To use this plugin please add the following three lines to your config.php
+ *
+ *     require_once('plugins/PiwikAnalyticsPlugin.php');
+ *     $pa = new PiwikAnalyticsPlugin("example.com/piwik/","id");
+ *
+ * exchange example.com/piwik/ with the url to your piwik installation and
+ * make sure you don't forget the final /
+ * exchange id with the ID your laconica installation has in your Piwik analytics
+ *
+ * @category Plugin
+ * @package  Laconica
+ * @author   Tobias Diekershoff <tobias.diekershoff@gmx.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://laconi.ca/
+ *
+ * @see      Event
+ */
+
+class PiwikAnalyticsPlugin extends Plugin
+{
+    /** the base of your Piwik installation */
+    var $piwikroot = null;
+    /** the Piwik Id of your laconica installation */
+    var $piwikId   = null;
+
+    /**
+     * constructor
+     *
+     * @param string $root Piwik root URL
+     * @param string $id   Piwik ID of this app
+     */
+
+    function __construct($root=null, $id=null)
+    {
+        $this->piwikroot = $root;
+        $this->piwikid   = $id;
+        parent::__construct();
+    }
+
+    /**
+     * Called when all scripts have been shown
+     *
+     * @param Action $action Current action
+     *
+     * @return boolean ignored
+     */
+
+    function onEndShowScripts($action)
+    {
+        $js1 = 'var pkBaseURL = (("https:" == document.location.protocol) ? "https://'.
+                $this->piwikroot.'" : "http://'.$this->piwikroot.
+                '"); document.write(unescape("%3Cscript src=\'" + pkBaseURL + "piwik.js\''.
+                ' type=\'text/javascript\'%3E%3C/script%3E"));';
+        $js2 = 'piwik_action_name = ""; piwik_idsite = '.$this->piwikid.
+               '; piwik_url = pkBaseURL + "piwik.php"; piwik_log(piwik_action_name, piwik_idsite, piwik_url);';
+        $action->elementStart('script', array('type' => 'text/javascript'));
+        $action->raw($js1);
+        $action->elementEnd('script');
+        $action->elementStart('script', array('type' => 'text/javascript'));
+        $action->raw($js2);
+        $action->elementEnd('script');
+        return true;
+    }
+}
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