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<?php |
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/** |
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* DokuWiki Plugin extension (Helper Component) |
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* |
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* @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html |
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* @author Michael Hamann <[email protected]> |
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*/ |
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/** |
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* Class helper_plugin_extension_repository provides access to the extension repository on dokuwiki.org |
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*/ |
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class helper_plugin_extension_repository extends DokuWiki_Plugin |
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{ |
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const EXTENSION_REPOSITORY_API = 'http://www.dokuwiki.org/lib/plugins/pluginrepo/api.php'; |
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private $loaded_extensions = array(); |
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private $has_access = null; |
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/** |
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* Initialize the repository (cache), fetches data for all installed plugins |
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*/ |
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public function init() |
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{ |
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/* @var Doku_Plugin_Controller $plugin_controller */ |
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global $plugin_controller; |
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if ($this->hasAccess()) { |
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$list = $plugin_controller->getList('', true); |
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$request_data = array('fmt' => 'php'); |
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$request_needed = false; |
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foreach ($list as $name) { |
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$cache = new cache('##extension_manager##'.$name, '.repo'); |
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if (!isset($this->loaded_extensions[$name]) && |
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$this->hasAccess() && |
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!$cache->useCache(array('age' => 3600 * 24)) |
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) { |
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$this->loaded_extensions[$name] = true; |
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$request_data['ext'][] = $name; |
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$request_needed = true; |
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} |
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} |
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if ($request_needed) { |
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$httpclient = new DokuHTTPClient(); |
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$data = $httpclient->post(self::EXTENSION_REPOSITORY_API, $request_data); |
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if ($data !== false) { |
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$extensions = unserialize($data); |
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foreach ($extensions as $extension) { |
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$cache = new cache('##extension_manager##'.$extension['plugin'], '.repo'); |
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$cache->storeCache(serialize($extension)); |
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} |
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} else { |
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$this->has_access = false; |
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} |
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} |
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} |
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} |
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/** |
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* If repository access is available |
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* |
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* @return bool If repository access is available |
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*/ |
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public function hasAccess() |
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{ |
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if ($this->has_access === null) { |
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$cache = new cache('##extension_manager###hasAccess', '.repo'); |
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if (!$cache->useCache(array('age' => 3600 * 24, 'purge'=>1))) { |
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$httpclient = new DokuHTTPClient(); |
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$httpclient->timeout = 5; |
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$data = $httpclient->get(self::EXTENSION_REPOSITORY_API.'?cmd=ping'); |
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if ($data !== false) { |
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$this->has_access = true; |
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$cache->storeCache(1); |
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} else { |
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$this->has_access = false; |
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$cache->storeCache(0); |
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} |
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} else { |
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$this->has_access = ($cache->retrieveCache(false) == 1); |
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} |
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} |
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return $this->has_access; |
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} |
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/** |
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* Get the remote data of an individual plugin or template |
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* |
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* @param string $name The plugin name to get the data for, template names need to be prefix by 'template:' |
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* @return array The data or null if nothing was found (possibly no repository access) |
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*/ |
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public function getData($name) |
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{ |
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$cache = new cache('##extension_manager##'.$name, '.repo'); |
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if (!isset($this->loaded_extensions[$name]) && |
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$this->hasAccess() && |
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!$cache->useCache(array('age' => 3600 * 24)) |
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) { |
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$this->loaded_extensions[$name] = true; |
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$httpclient = new DokuHTTPClient(); |
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$data = $httpclient->get(self::EXTENSION_REPOSITORY_API.'?fmt=php&ext[]='.urlencode($name)); |
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if ($data !== false) { |
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$result = unserialize($data); |
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$cache->storeCache(serialize($result[0])); |
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return $result[0]; |
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} else { |
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$this->has_access = false; |
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} |
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} |
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if (file_exists($cache->cache)) { |
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return unserialize($cache->retrieveCache(false)); |
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} |
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return array(); |
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} |
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/** |
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* Search for plugins or templates using the given query string |
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* |
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* @param string $q the query string |
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* @return array a list of matching extensions |
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*/ |
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public function search($q) |
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{ |
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$query = $this->parseQuery($q); |
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$query['fmt'] = 'php'; |
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$httpclient = new DokuHTTPClient(); |
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$data = $httpclient->post(self::EXTENSION_REPOSITORY_API, $query); |
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if ($data === false) return array(); |
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$result = unserialize($data); |
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$ids = array(); |
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// store cache info for each extension |
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foreach ($result as $ext) { |
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$name = $ext['plugin']; |
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$cache = new cache('##extension_manager##'.$name, '.repo'); |
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$cache->storeCache(serialize($ext)); |
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$ids[] = $name; |
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} |
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return $ids; |
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} |
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/** |
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* Parses special queries from the query string |
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* |
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* @param string $q |
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* @return array |
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*/ |
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protected function parseQuery($q) |
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{ |
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$parameters = array( |
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'tag' => array(), |
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'mail' => array(), |
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'type' => array(), |
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'ext' => array() |
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); |
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// extract tags |
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if (preg_match_all('/(^|\s)(tag:([\S]+))/', $q, $matches, PREG_SET_ORDER)) { |
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foreach ($matches as $m) { |
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$q = str_replace($m[2], '', $q); |
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$parameters['tag'][] = $m[3]; |
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} |
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} |
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// extract author ids |
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if (preg_match_all('/(^|\s)(authorid:([\S]+))/', $q, $matches, PREG_SET_ORDER)) { |
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foreach ($matches as $m) { |
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$q = str_replace($m[2], '', $q); |
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$parameters['mail'][] = $m[3]; |
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} |
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} |
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// extract extensions |
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if (preg_match_all('/(^|\s)(ext:([\S]+))/', $q, $matches, PREG_SET_ORDER)) { |
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foreach ($matches as $m) { |
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$q = str_replace($m[2], '', $q); |
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$parameters['ext'][] = $m[3]; |
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} |
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} |
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// extract types |
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if (preg_match_all('/(^|\s)(type:([\S]+))/', $q, $matches, PREG_SET_ORDER)) { |
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foreach ($matches as $m) { |
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$q = str_replace($m[2], '', $q); |
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$parameters['type'][] = $m[3]; |
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} |
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} |
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// FIXME make integer from type value |
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$parameters['q'] = trim($q); |
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return $parameters; |
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} |
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} |
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// vim:ts=4:sw=4:et: |
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