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<?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>
*/
if (!defined('EXTENSION_REPOSITORY_API_ENDPOINT'))
define('EXTENSION_REPSITORY_API', 'http://www.dokuwiki.org/lib/plugins/pluginrepo/api.php');
// must be run within Dokuwiki
if(!defined('DOKU_INC')) die();
/**
* Class helper_plugin_extension_repository provides access to the extension repository on dokuwiki.org
*/
class helper_plugin_extension_repository extends DokuWiki_Plugin {
private $loaded_extensions = array();
private $has_access = null;
/**
* Initialize the repository (cache), fetches data for all installed plugins
*/
public function init() {
/* @var Doku_Plugin_Controller $plugin_controller */
global $plugin_controller;
if ($this->hasAccess()) {
$list = $plugin_controller->getList('', true);
$request_data = array('fmt' => 'php');
$request_needed = false;
foreach ($list as $name) {
$cache = new cache('##extension_manager##'.$name, 'repo');
$result = null;
if (!isset($this->loaded_extensions[$name]) && $this->hasAccess() && !$cache->useCache(array('age' => 3600 * 24))) {
$this->loaded_extensions[$name] = true;
$request_data['ext'][] = $name;
$request_needed = true;
}
}
if ($request_needed) {
$httpclient = new DokuHTTPClient();
$data = $httpclient->post(EXTENSION_REPSITORY_API, $request_data);
if ($data !== false) {
$extensions = unserialize($data);
foreach ($extensions as $extension) {
$cache = new cache('##extension_manager##'.$extension['plugin'], 'repo');
$cache->storeCache(serialize($extension));
}
} else {
$this->has_access = false;
}
}
}
}
/**
* If repository access is available
*
* @return bool If repository access is available
*/
public function hasAccess() {
if ($this->has_access === null) {
$cache = new cache('##extension_manager###hasAccess', 'repo');
$result = null;
if (!$cache->useCache(array('age' => 3600 * 24))) {
$httpclient = new DokuHTTPClient();
$httpclient->timeout = 5;
$data = $httpclient->get(EXTENSION_REPSITORY_API.'?cmd=ping');
if ($data !== false) {
$this->has_access = true;
$cache->storeCache(1);
} else {
$this->has_access = false;
$cache->storeCache(0);
}
} else {
$this->has_access = ($cache->retrieveCache(false) == 1);
}
}
return $this->has_access;
}
/**
* Get the remote data of an individual plugin or template
*
* @param string $name The plugin name to get the data for, template names need to be prefix by 'template:'
* @return array The data or null if nothing was found (possibly no repository access)
*/
public function getData($name) {
$cache = new cache('##extension_manager##'.$name, 'repo');
$result = null;
if (!isset($this->loaded_extensions[$name]) && $this->hasAccess() && !$cache->useCache(array('age' => 3600 * 24))) {
$this->loaded_extensions[$name] = true;
$httpclient = new DokuHTTPClient();
$data = $httpclient->get(EXTENSION_REPSITORY_API.'?fmt=php&ext[]='.urlencode($name));
if ($data !== false) {
$result = unserialize($data);
$cache->storeCache(serialize($result[0]));
return $result[0];
} else {
$this->has_access = false;
}
}
if (file_exists($cache->cache)) {
return unserialize($cache->retrieveCache(false));
}
return array();
}
}
// vim:ts=4:sw=4:et:
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