pictcode / lib / Cake / Core / CakePlugin.php @ 19966135
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      <?php
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      /**
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       * CakePlugin class
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       *
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       * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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       * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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       *
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       * Licensed under The MIT License
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       * For full copyright and license information, please see the LICENSE.txt
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       * Redistributions of files must retain the above copyright notice.
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       *
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       * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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       * @link          http://cakephp.org CakePHP(tm) Project
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       * @package       Cake.Core
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       * @since         CakePHP(tm) v 2.0.0
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       * @license       http://www.opensource.org/licenses/mit-license.php MIT License
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       */
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      /**
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       * CakePlugin is responsible for loading and unloading plugins. It also can
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       * retrieve plugin paths and load their bootstrap and routes files.
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       *
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       * @package       Cake.Core
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       * @link http://book.cakephp.org/2.0/en/plugins.html
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       */
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      class CakePlugin {  | 
  
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      /**
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       * Holds a list of all loaded plugins and their configuration
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       *
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       * @var array
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       */
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      protected static $_plugins = array();  | 
  
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      /**
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       * Loads a plugin and optionally loads bootstrapping, routing files or loads an initialization function
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       *
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       * Examples:
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       *
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       * `CakePlugin::load('DebugKit')`
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       *
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       * Will load the DebugKit plugin and will not load any bootstrap nor route files
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       *
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       * `CakePlugin::load('DebugKit', array('bootstrap' => true, 'routes' => true))`
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       *
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       * will load the bootstrap.php and routes.php files
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       *
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       * `CakePlugin::load('DebugKit', array('bootstrap' => false, 'routes' => true))`
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       *
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       * will load routes.php file but not bootstrap.php
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       *
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       * `CakePlugin::load('DebugKit', array('bootstrap' => array('config1', 'config2')))`
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       *
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       * will load config1.php and config2.php files
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       *
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       * `CakePlugin::load('DebugKit', array('bootstrap' => 'aCallableMethod'))`
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       *
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       * will run the aCallableMethod function to initialize it
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       *
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       * Bootstrap initialization functions can be expressed as a PHP callback type,
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       * including closures. Callbacks will receive two parameters
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       * (plugin name, plugin configuration)
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       *
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       * It is also possible to load multiple plugins at once. Examples:
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       *
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       * `CakePlugin::load(array('DebugKit', 'ApiGenerator'))`
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       *
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       * will load the DebugKit and ApiGenerator plugins
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       *
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       * `CakePlugin::load(array('DebugKit', 'ApiGenerator'), array('bootstrap' => true))`
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       *
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       * will load bootstrap file for both plugins
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       *
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       * ```
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       *         CakePlugin::load(array(
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       *                 'DebugKit' => array('routes' => true),
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       *                 'ApiGenerator'
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       *                 ), array('bootstrap' => true))
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       * ```
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       *
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       * Will only load the bootstrap for ApiGenerator and only the routes for DebugKit.
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       * By using the `path` option you can specify an absolute path to the plugin. Make
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       * sure that the path is slash terminated or your plugin will not be located properly.
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       *
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       * @param string|array $plugin name of the plugin to be loaded in CamelCase format or array or plugins to load
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       * @param array $config configuration options for the plugin
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       * @throws MissingPluginException if the folder for the plugin to be loaded is not found
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       * @return void
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       */
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      public static function load($plugin, $config = array()) {  | 
  
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      if (is_array($plugin)) {  | 
  
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      foreach ($plugin as $name => $conf) {  | 
  
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      list($name, $conf) = (is_numeric($name)) ? array($conf, $config) : array($name, $conf);  | 
  
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      static::load($name, $conf);  | 
  
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      }  | 
  
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                              return;
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      }  | 
  
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      $config += array('bootstrap' => false, 'routes' => false, 'ignoreMissing' => false);  | 
  
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      if (empty($config['path'])) {  | 
  
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      foreach (App::path('plugins') as $path) {  | 
  
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      if (is_dir($path . $plugin)) {  | 
  
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      static::$_plugins[$plugin] = $config + array('path' => $path . $plugin . DS);  | 
  
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                                              break;
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      }  | 
  
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                                      //Backwards compatibility to make easier to migrate to 2.0
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      $underscored = Inflector::underscore($plugin);  | 
  
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      if (is_dir($path . $underscored)) {  | 
  
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      static::$_plugins[$plugin] = $config + array('path' => $path . $underscored . DS);  | 
  
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                                              break;
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      }  | 
  
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      }  | 
  
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                      } else {
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      static::$_plugins[$plugin] = $config;  | 
  
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      }  | 
  
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      if (empty(static::$_plugins[$plugin]['path'])) {  | 
  
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      throw new MissingPluginException(array('plugin' => $plugin));  | 
  
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      }  | 
  
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      if (!empty(static::$_plugins[$plugin]['bootstrap'])) {  | 
  
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      static::bootstrap($plugin);  | 
  
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      }  | 
  
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      }  | 
  
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      /**
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       * Will load all the plugins located in the configured plugins folders
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       * If passed an options array, it will be used as a common default for all plugins to be loaded
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       * It is possible to set specific defaults for each plugins in the options array. Examples:
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       *
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       * ```
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       *         CakePlugin::loadAll(array(
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       *                 array('bootstrap' => true),
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       *                 'DebugKit' => array('routes' => true, 'bootstrap' => false),
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       *         ))
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       * ```
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       *
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       * The above example will load the bootstrap file for all plugins, but for DebugKit it will only load
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       * the routes file and will not look for any bootstrap script. If you are loading
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       * many plugins that inconsistently support routes/bootstrap files, instead of detailing
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       * each plugin you can use the `ignoreMissing` option:
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       *
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       * ```
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       * CakePlugin::loadAll(array(
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       *   'ignoreMissing' => true,
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       *   'bootstrap' => true,
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       *   'routes' => true,
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       * ));
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       * ```
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       *
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       * The ignoreMissing option will do additional file_exists() calls but is simpler
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       * to use.
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       *
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       * @param array $options Options list. See CakePlugin::load() for valid options.
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       * @return void
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       */
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      public static function loadAll($options = array()) {  | 
  
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      $plugins = App::objects('plugins');  | 
  
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      foreach ($plugins as $p) {  | 
  
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      $opts = isset($options[$p]) ? (array)$options[$p] : array();  | 
  
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      if (isset($options[0])) {  | 
  
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      $opts += $options[0];  | 
  
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      }  | 
  
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      static::load($p, $opts);  | 
  
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      }  | 
  
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      }  | 
  
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      /**
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       * Returns the filesystem path for a plugin
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       *
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       * @param string $plugin name of the plugin in CamelCase format
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       * @return string path to the plugin folder
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       * @throws MissingPluginException if the folder for plugin was not found or plugin has not been loaded
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       */
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      public static function path($plugin) {  | 
  
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      if (empty(static::$_plugins[$plugin])) {  | 
  
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      throw new MissingPluginException(array('plugin' => $plugin));  | 
  
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      }  | 
  
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      return static::$_plugins[$plugin]['path'];  | 
  
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      }  | 
  
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      /**
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       * Loads the bootstrapping files for a plugin, or calls the initialization setup in the configuration
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       *
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       * @param string $plugin name of the plugin
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       * @return mixed
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       * @see CakePlugin::load() for examples of bootstrap configuration
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       */
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      public static function bootstrap($plugin) {  | 
  
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      $config = static::$_plugins[$plugin];  | 
  
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      if ($config['bootstrap'] === false) {  | 
  
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      return false;  | 
  
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      }  | 
  
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      if (is_callable($config['bootstrap'])) {  | 
  
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      return call_user_func_array($config['bootstrap'], array($plugin, $config));  | 
  
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      }  | 
  
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      $path = static::path($plugin);  | 
  
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      if ($config['bootstrap'] === true) {  | 
  
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      return static::_includeFile(  | 
  
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      $path . 'Config' . DS . 'bootstrap.php',  | 
  
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      $config['ignoreMissing']  | 
  
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      );  | 
  
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      }  | 
  
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      $bootstrap = (array)$config['bootstrap'];  | 
  
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      foreach ($bootstrap as $file) {  | 
  
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                              static::_includeFile(
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      $path . 'Config' . DS . $file . '.php',  | 
  
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      $config['ignoreMissing']  | 
  
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      );  | 
  
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      }  | 
  
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      return true;  | 
  
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      }  | 
  
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      /**
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       * Loads the routes file for a plugin, or all plugins configured to load their respective routes file
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       *
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       * @param string $plugin name of the plugin, if null will operate on all plugins having enabled the
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       * loading of routes files
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       * @return bool
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       */
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      public static function routes($plugin = null) {  | 
  
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      if ($plugin === null) {  | 
  
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      foreach (static::loaded() as $p) {  | 
  
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      static::routes($p);  | 
  
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      }  | 
  
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      return true;  | 
  
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      }  | 
  
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      $config = static::$_plugins[$plugin];  | 
  
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      if ($config['routes'] === false) {  | 
  
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      return false;  | 
  
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      }  | 
  
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      return (bool)static::_includeFile(  | 
  
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      static::path($plugin) . 'Config' . DS . 'routes.php',  | 
  
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      $config['ignoreMissing']  | 
  
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      );  | 
  
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      }  | 
  
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      /**
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       * Returns true if the plugin $plugin is already loaded
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       * If plugin is null, it will return a list of all loaded plugins
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       *
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       * @param string $plugin Plugin name to check.
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       * @return mixed boolean true if $plugin is already loaded.
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       * If $plugin is null, returns a list of plugins that have been loaded
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       */
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      public static function loaded($plugin = null) {  | 
  
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      if ($plugin) {  | 
  
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      return isset(static::$_plugins[$plugin]);  | 
  
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      }  | 
  
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      $return = array_keys(static::$_plugins);  | 
  
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      sort($return);  | 
  
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      return $return;  | 
  
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      }  | 
  
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      /**
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       * Forgets a loaded plugin or all of them if first parameter is null
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       *
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       * @param string $plugin name of the plugin to forget
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       * @return void
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       */
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      public static function unload($plugin = null) {  | 
  
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      if ($plugin === null) {  | 
  
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      static::$_plugins = array();  | 
  
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                      } else {
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      unset(static::$_plugins[$plugin]);  | 
  
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      }  | 
  
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      }  | 
  
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      /**
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       * Include file, ignoring include error if needed if file is missing
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       *
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       * @param string $file File to include
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       * @param bool $ignoreMissing Whether to ignore include error for missing files
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       * @return mixed
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       */
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      protected static function _includeFile($file, $ignoreMissing = false) {  | 
  
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      if ($ignoreMissing && !is_file($file)) {  | 
  
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      return false;  | 
  
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      }  | 
  
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      return include $file;  | 
  
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      }  | 
  
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       | 
  
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      }  |