Den ersten Entwurf des Piwik-Plugins (vgl. http://board.s9y.org/viewtopic.php?f=4&t=19403) etwas angepasst: PHP5 benötigt; PEAR-HTTP-Request eingebaut und in eigene Methode gezogen; "site_id" konfigurierbar.

serendipity_plugin_piwik.php

<?php # $Id$

require_once S9Y_PEAR_PATH . 'HTTP/Request.php';

@serendipity_plugin_api::load_language(dirname(__FILE__));

class serendipity_plugin_piwik extends serendipity_plugin {
    public $title = PLUGIN_SIDEBAR_PIWIK_NAME;
    protected $token;
    protected $url;
    protected $entries;
    protected $entries_max;
    protected $entries_remove;
    protected $dependencies;

    /**
     * @param serendipity_property_bag $propbag
     * @return void
     */
    public function introspect(&$propbag)
    {
        $this->title = $this->get_config('title', $this->title);
        $propbag->add('name',          PLUGIN_SIDEBAR_PIWIK_NAME);
        $propbag->add('description',   PLUGIN_SIDEBAR_PIWIK_DESC);
        $propbag->add('stackable',     true);
        $propbag->add('author',        'Bernd Distler');
        $propbag->add('version',       '0.2');
        $propbag->add('requirements',  array(
            'serendipity' => '1.3.1', // don't know about that
            'smarty'      => '2.6.7',
            'php'         => '5.1.0'
        ));
        $propbag->add('configuration', array('title','token','site_id','url','entries','entries_max','entries_remove'));
        $propbag->add('groups', array('FRONTEND_EXTERNAL_SERVICES'));
        $this->dependencies = array('serendipity_event_piwik' => 'remove');
    }

    /**
     * @param string $name
     * @param serendipity_property_bag $propbag
     * @return bool
     */
    public function introspect_config_item($name, &$propbag)
    {
        switch($name) {
            case 'title':
                $propbag->add('type',          'string');
                $propbag->add('name',          PLUGIN_SIDEBAR_PIWIK_TITLE);
                $propbag->add('description',   PLUGIN_SIDEBAR_PIWIK_TITLE);
                $propbag->add('default', '');
                break;
            case 'token':
                $propbag->add('type',           'string');
                $propbag->add('name',           PLUGIN_SIDEBAR_PIWIK_TOKEN);
                $propbag->add('description',    PLUGIN_SIDEBAR_PIWIK_TOKEN);
                $propbag->add('default',        '');
                break;
            case 'site_id':
                $propbag->add('type',           'string');
                $propbag->add('name',           PLUGIN_SIDEBAR_PIWIK_SITEID);
                $propbag->add('description',    PLUGIN_SIDEBAR_PIWIK_SITEID);
                $propbag->add('default',        '');
                break;
            case 'url':
                $propbag->add('type',           'string');
                $propbag->add('name',           PLUGIN_SIDEBAR_PIWIK_URL);
                $propbag->add('description',    PLUGIN_SIDEBAR_PIWIK_URL);
                $propbag->add('default',        'http://example.org/piwik/');
                break;
            case 'entries':
                $propbag->add('type',           'boolean');
                $propbag->add('name',           PLUGIN_SIDEBAR_PIWIK_ENTRIES);
                $propbag->add('description',    PLUGIN_SIDEBAR_PIWIK_ENTRIES);
                $propbag->add('default',        'true');
                break;
            case 'entries_max':
                $propbag->add('type',           'string');
                $propbag->add('name',           PLUGIN_SIDEBAR_PIWIK_ENTRIES_MAX);
                $propbag->add('description',    PLUGIN_SIDEBAR_PIWIK_ENTRIES_MAX);
                $propbag->add('default',        '5');
                break;
            case 'entries_remove':
                $propbag->add('type',           'string');
                $propbag->add('name',           PLUGIN_SIDEBAR_PIWIK_ENTRIES_REMOVE);
                $propbag->add('description',    PLUGIN_SIDEBAR_PIWIK_ENTRIES_REMOVE);
                $propbag->add('default',        '');
                break;

        }
        return true;
    }

    /**
     * @param string $title
     * @return void
     */
    public function generate_content(&$title) {
        $title = $this->get_config('title', $title ? $title : $this->title);
        $token = $this->get_config('token', $this->token);
        $site_id = $this->get_config('site_id', 1);
        $url = $this->get_config('url', $this->url);
        $entries = $this->get_config('entries', $this->entries);
        $entries_max = $this->get_config('entries_max', $this->entries_max);
        $entries_remove = $this->get_config('entries_remove', $this->entries_remove);
        $error = false;
        $piwik_array_pagesurls = array();
        $piwik_array_pagestitles = array();
        if ($entries) {
            /* most viewed entries of current week */
            $api_url = $url;
            $api_url .= "?module=API&method=Actions.getPageUrls";
            $api_url .= "&idSite=" . $site_id . "&period=week&date=today";
            $api_url .= "&format=PHP&filter_limit=" . $entries_max;
            $api_url .= "&flat=1&disableLink=1";
            $api_url .= "&token_auth=$token";
            try {
                $piwik_array_pagesurls = unserialize($this->requestPiwikData($api_url));
            } catch (Exception $e) {
                $error = true;
            }
            $api_url = $url;
            $api_url .= "?module=API&method=Actions.getPageTitles";
            $api_url .= "&idSite=" . $site_id . "&period=week&date=today";
            $api_url .= "&format=PHP&filter_limit=" . $entries_max;
            $api_url .= "&flat=1&disableLink=1";
            $api_url .= "&token_auth=$token";
            try {
                $piwik_array_pagestitles = unserialize($this->requestPiwikData($api_url));
            } catch (Exception $e) {
                $error = true;
            }
            if ($error) {
                return;
            }
            for ($i = 0; $i < count($piwik_array_pagesurls); $i++) {
                $piwik_array_pagesurls[$i]['label'] = $piwik_array_pagestitles[$i]['label'];
            }
            $entries_view = PLUGIN_SIDEBAR_PIWIK_ENTRIES_VIEWS;
            echo "\n<ol>\n";
            foreach ($piwik_array_pagesurls as $row) {
                $piwik_content_pageurl = htmlspecialchars(
                    html_entity_decode(urldecode($row['url']), ENT_QUOTES),
                    ENT_QUOTES
                );
                $piwik_content_pagelabel = htmlspecialchars(
                    html_entity_decode(urldecode($row['label']), ENT_QUOTES),
                    ENT_QUOTES
                );
                $piwik_content_pagelabel = str_replace($entries_remove, "", $piwik_content_pagelabel);
                $piwik_content_hits = $row['nb_visits'];
                echo '    <li><a href="' . $piwik_content_pageurl . '" title="' . $piwik_content_hits . ' ' . $entries_view . '">' . $piwik_content_pagelabel . "</a></li>\n";
            }
            echo "\n</ol>\n";
        }
    }

    /**
     * @param $api_url
     * @return bool|mixed|string
     */
    protected function requestPiwikData($api_url)
    {
        serendipity_request_start();
        $req = new HTTP_Request($api_url);
        if (PEAR::isError($req->sendRequest()) || $req->getResponseCode() != '200') {
            $piwik_fetched = file_get_contents($api_url);
        } else {
            $piwik_fetched = $req->getResponseBody();
        }
        serendipity_request_end();
        return $piwik_fetched;
    }
}

/* vim: set sts=4 ts=4 expandtab : */