diff options
Diffstat (limited to 'mod/dokuwiki/vendors/dokuwiki/inc/plugincontroller.class.php')
| -rw-r--r-- | mod/dokuwiki/vendors/dokuwiki/inc/plugincontroller.class.php | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/mod/dokuwiki/vendors/dokuwiki/inc/plugincontroller.class.php b/mod/dokuwiki/vendors/dokuwiki/inc/plugincontroller.class.php new file mode 100644 index 000000000..4400a4187 --- /dev/null +++ b/mod/dokuwiki/vendors/dokuwiki/inc/plugincontroller.class.php @@ -0,0 +1,172 @@ +<?php +/** + * Class to encapsulate access to dokuwiki plugins + * + * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) + * @author Christopher Smith <chris@jalakai.co.uk> + */ + +// plugin related constants +if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/'); + +class Doku_Plugin_Controller { + + var $list_enabled = array(); + var $list_disabled = array(); + var $list_bytype = array(); + + function Doku_Plugin_Controller() { + $this->_populateMasterList(); + } + + /** + * Returns a list of available plugins of given type + * + * @param $type string, plugin_type name; + * the type of plugin to return, + * use empty string for all types + * @param $all bool; + * false to only return enabled plugins, + * true to return both enabled and disabled plugins + * + * @return array of plugin names + * + * @author Andreas Gohr <andi@splitbrain.org> + */ + function getList($type='',$all=false){ + + // request the complete list + if (!$type) { + return $all ? array_merge($this->list_enabled,$this->list_disabled) : $this->list_enabled; + } + + if (!isset($this->list_bytype[$type]['enabled'])) { + $this->list_bytype[$type]['enabled'] = $this->_getListByType($type,true); + } + if ($all && !isset($this->list_bytype[$type]['disabled'])) { + $this->list_bytype[$type]['disabled'] = $this->_getListByType($type,false); + } + + return $all ? array_merge($this->list_bytype[$type]['enabled'],$this->list_bytype[$type]['disabled']) : $this->list_bytype[$type]['enabled']; + } + + /** + * Loads the given plugin and creates an object of it + * + * @author Andreas Gohr <andi@splitbrain.org> + * + * @param $type string type of plugin to load + * @param $name string name of the plugin to load + * @param $new bool true to return a new instance of the plugin, false to use an already loaded instance + * @return objectreference the plugin object or null on failure + */ + function &load($type,$name,$new=false){ + //we keep all loaded plugins available in global scope for reuse + global $DOKU_PLUGINS; + + //plugin already loaded? + if(!empty($DOKU_PLUGINS[$type][$name])){ + if ($new && !$DOKU_PLUGINS[$type][$name]->isSingleton()) { + $class = $type.'_plugin_'.$name; + return class_exists($class) ? new $class : null; + } else { + return $DOKU_PLUGINS[$type][$name]; + } + } + + //try to load the wanted plugin file + list($plugin,$component) = $this->_splitName($name); + $dir = $this->get_directory($plugin); + $file = $component ? "$type/$component.php" : "$type.php"; + + if(!is_file(DOKU_PLUGIN."$dir/$file")){ + return null; + } + + if (!include_once(DOKU_PLUGIN."$dir/$file")) { + return null; + } + + //construct class and instantiate + $class = $type.'_plugin_'.$name; + if (!class_exists($class)) return null; + + $DOKU_PLUGINS[$type][$name] = new $class; + return $DOKU_PLUGINS[$type][$name]; + } + + function isdisabled($plugin) { + return (array_search($plugin, $this->list_enabled) === false); + } + + function enable($plugin) { + if (array_search($plugin, $this->list_disabled) !== false) { + return @unlink(DOKU_PLUGIN.$plugin.'/disabled'); + } + return false; + } + + function disable($plugin) { + if (array_search($plugin, $this->list_enabled) !== false) { + return @touch(DOKU_PLUGIN.$plugin.'/disabled'); + } + return false; + } + + function get_directory($plugin) { + return $plugin; + } + + function _populateMasterList() { + if ($dh = opendir(DOKU_PLUGIN)) { + while (false !== ($plugin = readdir($dh))) { + if ($plugin == '.' || $plugin == '..' || $plugin == 'tmp') continue; + if (is_file(DOKU_PLUGIN.$plugin)) continue; + + if (substr($plugin,-9) == '.disabled') { + // the plugin was disabled by rc2009-01-26 + // disabling mechanism was changed back very soon again + // to keep everything simple we just skip the plugin completely + }elseif(@file_exists(DOKU_PLUGIN.$plugin.'/disabled')){ + $this->list_disabled[] = $plugin; + } else { + $this->list_enabled[] = $plugin; + } + } + } + } + + function _getListByType($type, $enabled) { + $master_list = $enabled ? $this->list_enabled : $this->list_disabled; + + $plugins = array(); + foreach ($master_list as $plugin) { + $dir = $this->get_directory($plugin); + + if (@file_exists(DOKU_PLUGIN."$dir/$type.php")){ + $plugins[] = $plugin; + } else { + if ($dp = @opendir(DOKU_PLUGIN."$dir/$type/")) { + while (false !== ($component = readdir($dp))) { + if (substr($component,0,1) == '.' || strtolower(substr($component, -4)) != ".php") continue; + if (is_file(DOKU_PLUGIN."$dir/$type/$component")) { + $plugins[] = $plugin.'_'.substr($component, 0, -4); + } + } + closedir($dp); + } + } + } + + return $plugins; + } + + function _splitName($name) { + if (array_search($name, $this->list_enabled + $this->list_disabled) === false) { + return explode('_',$name,2); + } + + return array($name,''); + } + +} |