pluginlist.php 5.78 KB
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<?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * Plugins administration panel
 *
 * 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  Settings
 * @package   StatusNet
 * @author    Brion Vibber <brion@status.net>
 * @copyright 2010 StatusNet, Inc.
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      http://status.net/
 */

if (!defined('STATUSNET')) {
    exit(1);
}

require INSTALLDIR . "/lib/pluginenableform.php";
require INSTALLDIR . "/lib/plugindisableform.php";

/**
 * Plugin list
 *
 * @category Admin
 * @package  StatusNet
 * @author   Brion Vibber <brion@status.net>
 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link     http://status.net/
 */
class PluginList extends Widget
{
    var $plugins = array();

    function __construct($plugins, $out)
    {
        parent::__construct($out);
        $this->plugins = $plugins;
    }

    function show()
    {
        $this->startList();
        $this->showPlugins();
        $this->endList();
    }

    function startList()
    {
        $this->out->elementStart('table', 'plugin_list');
    }

    function endList()
    {
        $this->out->elementEnd('table');
    }

    function showPlugins()
    {
        foreach ($this->plugins as $plugin) {
            $pli = $this->newListItem($plugin);
            $pli->show();
        }
    }

    function newListItem($plugin)
    {
        return new PluginListItem($plugin, $this->out);
    }
}

class PluginListItem extends Widget
{
    /** Current plugin. */
    var $plugin = null;

    /** Local cache for plugin version info */
    protected static $versions = false;

    function __construct($plugin, $out)
    {
        parent::__construct($out);
        $this->plugin = $plugin;
    }

    function show()
    {
        $meta = $this->metaInfo();

        $this->out->elementStart('tr', array('id' => 'plugin-' . $this->plugin));

        // Name and controls
        $this->out->elementStart('td');
        $this->out->elementStart('div');
        if (!empty($meta['homepage'])) {
            $this->out->elementStart('a', array('href' => $meta['homepage']));
        }
        $this->out->text($this->plugin);
        if (!empty($meta['homepage'])) {
            $this->out->elementEnd('a');
        }
        $this->out->elementEnd('div');
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        $form = $this->getControlForm();
        $form->show();

        $this->out->elementEnd('td');

        // Version and authors
        $this->out->elementStart('td');
        if (!empty($meta['version'])) {
            $this->out->elementStart('div');
            $this->out->text($meta['version']);
            $this->out->elementEnd('div');
        }
        if (!empty($meta['author'])) {
            $this->out->elementStart('div');
            $this->out->text($meta['author']);
            $this->out->elementEnd('div');
        }
        $this->out->elementEnd('td');

        // Description
        $this->out->elementStart('td');
        if (!empty($meta['rawdescription'])) {
            $this->out->raw($meta['rawdescription']);
        }
        $this->out->elementEnd('td');

        $this->out->elementEnd('tr');
    }

    /**
     * Pull up the appropriate control form for this plugin, depending
     * on its current state.
     *
     * @return Form
     */
    protected function getControlForm()
    {
        $key = 'disable-' . $this->plugin;
        if (common_config('plugins', $key)) {
            return new PluginEnableForm($this->out, $this->plugin);
        } else {
            return new PluginDisableForm($this->out, $this->plugin);
        }
    }

    /**
     * Grab metadata about this plugin...
     * Warning: horribly inefficient and may explode!
     * Doesn't work for disabled plugins either.
     *
     * @fixme pull structured data from plugin source
     */
    function metaInfo()
    {
        $versions = self::getPluginVersions();
        $found = false;

        foreach ($versions as $info) {
            // hack for URL shorteners... "LilUrl (ur1.ca)" etc
            list($name, ) = explode(' ', $info['name']);

            if ($name == $this->plugin) {
                if ($found) {
                    // hack for URL shorteners...
                    $found['rawdescription'] .= "<br />\n" . $info['rawdescription'];
                } else {
                    $found = $info;
                }
            }
        }

        if ($found) {
            return $found;
        } else {
            return array('name' => $this->plugin,
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                         // TRANS: Plugin description for a disabled plugin.
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                         'rawdescription' => _m('plugin-description','(The plugin description is unavailable when a plugin has been disabled.)'));
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        }
    }

    /**
     * Lazy-load the set of active plugin version info
     * @return array
     */
    protected static function getPluginVersions()
    {
        if (!is_array(self::$versions)) {
            $versions = array();
            Event::handle('PluginVersion', array(&$versions));
            self::$versions = $versions;
        }
        return self::$versions;
    }
}