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libraries/joomla/plugin/helper.php
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287
libraries/joomla/plugin/helper.php
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<?php
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/**
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* @package Joomla.Platform
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* @subpackage Plugin
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Plugin helper class
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*
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* @package Joomla.Platform
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* @subpackage Plugin
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* @since 11.1
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*/
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abstract class JPluginHelper
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{
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/**
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* A persistent cache of the loaded plugins.
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*
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* @var array
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* @since 11.3
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*/
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protected static $plugins = null;
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/**
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* Get the path to a layout from a Plugin
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*
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* @param string $type Plugin type
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* @param string $name Plugin name
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* @param string $layout Layout name
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*
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* @return string Layout path
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*
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* @since 12.2
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*/
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public static function getLayoutPath($type, $name, $layout = 'default')
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{
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$template = JFactory::getApplication()->getTemplate();
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$defaultLayout = $layout;
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if (strpos($layout, ':') !== false)
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{
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// Get the template and file name from the string
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$temp = explode(':', $layout);
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$template = ($temp[0] == '_') ? $template : $temp[0];
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$layout = $temp[1];
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$defaultLayout = ($temp[1]) ? $temp[1] : 'default';
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}
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// Build the template and base path for the layout
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$tPath = JPATH_THEMES . '/' . $template . '/html/plg_' . $type . '_' . $name . '/' . $layout . '.php';
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$bPath = JPATH_BASE . '/plugins/' . $type . '/' . $name . '/tmpl/' . $defaultLayout . '.php';
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$dPath = JPATH_BASE . '/plugins/' . $type . '/' . $name . '/tmpl/default.php';
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// If the template has a layout override use it
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if (file_exists($tPath))
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{
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return $tPath;
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}
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elseif (file_exists($bPath))
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{
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return $bPath;
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}
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else
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{
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return $dPath;
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}
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}
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/**
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* Get the plugin data of a specific type if no specific plugin is specified
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* otherwise only the specific plugin data is returned.
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*
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* @param string $type The plugin type, relates to the sub-directory in the plugins directory.
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* @param string $plugin The plugin name.
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*
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* @return mixed An array of plugin data objects, or a plugin data object.
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*
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* @since 11.1
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*/
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public static function getPlugin($type, $plugin = null)
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{
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$result = array();
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$plugins = self::_load();
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// Find the correct plugin(s) to return.
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if (!$plugin)
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{
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foreach ($plugins as $p)
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{
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// Is this the right plugin?
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if ($p->type == $type)
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{
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$result[] = $p;
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}
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}
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}
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else
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{
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foreach ($plugins as $p)
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{
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// Is this plugin in the right group?
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if ($p->type == $type && $p->name == $plugin)
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{
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$result = $p;
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break;
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}
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}
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}
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return $result;
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}
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/**
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* Checks if a plugin is enabled.
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*
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* @param string $type The plugin type, relates to the sub-directory in the plugins directory.
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* @param string $plugin The plugin name.
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*
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* @return boolean
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*
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* @since 11.1
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*/
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public static function isEnabled($type, $plugin = null)
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{
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$result = self::getPlugin($type, $plugin);
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return (!empty($result));
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}
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/**
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* Loads all the plugin files for a particular type if no specific plugin is specified
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* otherwise only the specific plugin is loaded.
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*
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* @param string $type The plugin type, relates to the sub-directory in the plugins directory.
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* @param string $plugin The plugin name.
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* @param boolean $autocreate Autocreate the plugin.
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* @param JEventDispatcher $dispatcher Optionally allows the plugin to use a different dispatcher.
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*
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* @return boolean True on success.
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*
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* @since 11.1
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*/
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public static function importPlugin($type, $plugin = null, $autocreate = true, JEventDispatcher $dispatcher = null)
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{
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static $loaded = array();
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// Check for the default args, if so we can optimise cheaply
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$defaults = false;
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if (is_null($plugin) && $autocreate == true && is_null($dispatcher))
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{
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$defaults = true;
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}
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if (!isset($loaded[$type]) || !$defaults)
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{
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$results = null;
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// Load the plugins from the database.
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$plugins = self::_load();
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// Get the specified plugin(s).
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for ($i = 0, $t = count($plugins); $i < $t; $i++)
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{
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if ($plugins[$i]->type == $type && ($plugin === null || $plugins[$i]->name == $plugin))
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{
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self::_import($plugins[$i], $autocreate, $dispatcher);
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$results = true;
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}
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}
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// Bail out early if we're not using default args
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if (!$defaults)
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{
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return $results;
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}
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$loaded[$type] = $results;
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}
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return $loaded[$type];
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}
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/**
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* Loads the plugin file.
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*
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* @param object $plugin The plugin.
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* @param boolean $autocreate True to autocreate.
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* @param JEventDispatcher $dispatcher Optionally allows the plugin to use a different dispatcher.
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*
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* @return void
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*
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* @since 11.1
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*/
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protected static function _import($plugin, $autocreate = true, JEventDispatcher $dispatcher = null)
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{
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static $paths = array();
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$plugin->type = preg_replace('/[^A-Z0-9_\.-]/i', '', $plugin->type);
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$plugin->name = preg_replace('/[^A-Z0-9_\.-]/i', '', $plugin->name);
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$path = JPATH_PLUGINS . '/' . $plugin->type . '/' . $plugin->name . '/' . $plugin->name . '.php';
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if (!isset($paths[$path]))
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{
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if (file_exists($path))
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{
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if (!isset($paths[$path]))
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{
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require_once $path;
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}
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$paths[$path] = true;
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if ($autocreate)
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{
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// Makes sure we have an event dispatcher
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if (!is_object($dispatcher))
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{
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$dispatcher = JEventDispatcher::getInstance();
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}
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$className = 'plg' . $plugin->type . $plugin->name;
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if (class_exists($className))
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{
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// Load the plugin from the database.
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if (!isset($plugin->params))
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{
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// Seems like this could just go bye bye completely
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$plugin = self::getPlugin($plugin->type, $plugin->name);
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}
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// Instantiate and register the plugin.
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new $className($dispatcher, (array) ($plugin));
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}
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}
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}
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else
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{
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$paths[$path] = false;
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}
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}
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}
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/**
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* Loads the published plugins.
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*
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* @return array An array of published plugins
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*
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* @since 11.1
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*/
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protected static function _load()
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{
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if (self::$plugins !== null)
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{
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return self::$plugins;
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}
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$user = JFactory::getUser();
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$cache = JFactory::getCache('com_plugins', '');
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$levels = implode(',', $user->getAuthorisedViewLevels());
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if (!self::$plugins = $cache->get($levels))
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{
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$db = JFactory::getDbo();
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$query = $db->getQuery(true)
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->select('folder AS type, element AS name, params')
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->from('#__extensions')
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->where('enabled >= 1')
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->where('type =' . $db->quote('plugin'))
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->where('state >= 0')
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->where('access IN (' . $levels . ')')
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->order('ordering');
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self::$plugins = $db->setQuery($query)->loadObjectList();
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$cache->store(self::$plugins, $levels);
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}
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return self::$plugins;
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}
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}
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1
libraries/joomla/plugin/index.html
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1
libraries/joomla/plugin/index.html
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<!DOCTYPE html><title></title>
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146
libraries/joomla/plugin/plugin.php
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146
libraries/joomla/plugin/plugin.php
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<?php
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/**
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* @package Joomla.Platform
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* @subpackage Plugin
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* JPlugin Class
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*
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* @package Joomla.Platform
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* @subpackage Plugin
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* @since 11.1
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*/
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abstract class JPlugin extends JEvent
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{
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/**
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* A JRegistry object holding the parameters for the plugin
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*
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* @var JRegistry
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* @since 11.1
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*/
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public $params = null;
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/**
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* The name of the plugin
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*
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* @var string
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* @since 11.1
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*/
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protected $_name = null;
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/**
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* The plugin type
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*
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* @var string
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* @since 11.1
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*/
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protected $_type = null;
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/**
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* Affects constructor behavior. If true, language files will be loaded automatically.
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*
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* @var boolean
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* @since 12.3
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*/
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protected $autoloadLanguage = false;
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/**
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* Constructor
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*
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* @param object &$subject The object to observe
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* @param array $config An optional associative array of configuration settings.
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* Recognized key values include 'name', 'group', 'params', 'language'
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* (this list is not meant to be comprehensive).
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*
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* @since 11.1
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*/
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public function __construct(&$subject, $config = array())
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{
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// Get the parameters.
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if (isset($config['params']))
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{
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if ($config['params'] instanceof JRegistry)
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{
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$this->params = $config['params'];
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}
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else
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{
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$this->params = new JRegistry;
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$this->params->loadString($config['params']);
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}
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}
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// Get the plugin name.
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if (isset($config['name']))
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{
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$this->_name = $config['name'];
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}
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// Get the plugin type.
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if (isset($config['type']))
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{
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$this->_type = $config['type'];
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}
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// Load the language files if needed.
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if ($this->autoloadLanguage)
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{
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$this->loadLanguage();
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}
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if (property_exists($this, 'app'))
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{
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$reflection = new ReflectionClass($this);
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$appProperty = $reflection->getProperty('app');
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if ($appProperty->isPrivate() === false && is_null($this->app))
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{
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$this->app = JFactory::getApplication();
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}
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}
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if (property_exists($this, 'db'))
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{
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$reflection = new ReflectionClass($this);
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$dbProperty = $reflection->getProperty('db');
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if ($dbProperty->isPrivate() === false && is_null($this->db))
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{
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$this->db = JFactory::getDbo();
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}
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}
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parent::__construct($subject);
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}
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/**
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* Loads the plugin language file
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*
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* @param string $extension The extension for which a language file should be loaded
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* @param string $basePath The basepath to use
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*
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* @return boolean True, if the file has successfully loaded.
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*
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* @since 11.1
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*/
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public function loadLanguage($extension = '', $basePath = JPATH_ADMINISTRATOR)
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{
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if (empty($extension))
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{
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$extension = 'plg_' . $this->_type . '_' . $this->_name;
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}
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$lang = JFactory::getLanguage();
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return $lang->load(strtolower($extension), $basePath, null, false, false)
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|| $lang->load(strtolower($extension), JPATH_PLUGINS . '/' . $this->_type . '/' . $this->_name, null, false, false)
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|| $lang->load(strtolower($extension), $basePath, $lang->getDefault(), false, false)
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|| $lang->load(strtolower($extension), JPATH_PLUGINS . '/' . $this->_type . '/' . $this->_name, $lang->getDefault(), false, false);
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}
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}
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