extension.php

<?php
/**
 * DokuWiki Plugin extension (Helper Component)
 *
 * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
 * @author  Michael Hamann <michael@content-space.de>
 */

// must be run within Dokuwiki
if(!defined('DOKU_INC')) die();
if(!defined('DOKU_TPLLIB')) define('DOKU_TPLLIB', DOKU_INC.'lib/tpl/');

/**
 * Class helper_plugin_extension_extension represents a single extension (plugin or template)
 */
class helper_plugin_extension_extension extends DokuWiki_Plugin {
    private $id;
    private $base;
    private $is_template = false;
    private $localInfo;
    private $remoteInfo;
    private $managerData;
    /** @var helper_plugin_extension_repository $repository */
    private $repository = null;

    /** @var array list of temporary directories */
    private $temporary = array();

    /**
     * Destructor
     *
     * deletes any dangling temporary directories
     */
    public function __destruct() {
        foreach($this->temporary as $dir){
            io_rmdir($dir, true);
        }
    }

    /**
     * @return bool false, this component is not a singleton
     */
    public function isSingleton() {
        return false;
    }

    /**
     * Set the name of the extension this instance shall represents, triggers loading the local and remote data
     *
     * @param string $id  The id of the extension (prefixed with template: for templates)
     * @return bool If some (local or remote) data was found
     */
    public function setExtension($id) {
        $this->id   = $id;
        $this->base = $id;

        if(substr($id, 0 , 9) == 'template:'){
            $this->base = substr($id, 9);
            $this->is_template = true;
        } else {
            $this->is_template = false;
        }

        $this->localInfo = array();
        $this->managerData = array();
        $this->remoteInfo = array();

        if ($this->isInstalled()) {
            $this->readLocalData();
            $this->readManagerData();