configure.php

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<?php
/* SVN FILE: $Id: configure.php 8015 2009-02-04 05:00:59Z mark_story $ */
/**
 * Short description for file.
 *
 * Long description for filec
 *
 * PHP versions 4 and 5
 *
 * CakePHP(tm) :  Rapid Development Framework (http://www.cakephp.org)
 * Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @filesource
 * @copyright     Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
 * @link          http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
 * @package       cake
 * @subpackage    cake.cake.libs
 * @since         CakePHP(tm) v 1.0.0.2363
 * @version       $Revision: 8015 $
 * @modifiedby    $LastChangedBy: mark_story $
 * @lastmodified  $Date: 2009-02-04 00:00:59 -0500 (Wed, 04 Feb 2009) $
 * @license       http://www.opensource.org/licenses/mit-license.php The MIT License
 */
/**
 * Configuration class (singleton). Used for managing runtime configuration information.
 *
 * @package       cake
 * @subpackage    cake.cake.libs
 * @link          http://book.cakephp.org/view/42/The-Configuration-Class
 */
class Configure extends Object {
/**
 * List of additional path(s) where model files reside.
 *
 * @var array
 * @access public
 */
    var $modelPaths = array();
/**
 * List of additional path(s) where behavior files reside.
 *
 * @var array
 * @access public
 */
    var $behaviorPaths = array();
/**
 * List of additional path(s) where controller files reside.
 *
 * @var array
 * @access public
 */
    var $controllerPaths = array();
/**
 * List of additional path(s) where component files reside.
 *
 * @var array
 * @access public
 */
    var $componentPaths = array();
/**
 * List of additional path(s) where view files reside.
 *
 * @var array
 * @access public
 */
    var $viewPaths = array();
/**
 * List of additional path(s) where helper files reside.
 *
 * @var array
 * @access public
 */
    var $helperPaths = array();
/**
 * List of additional path(s) where plugins reside.
 *
 * @var array
 * @access public
 */
    var $pluginPaths = array();
/**
 * List of additional path(s) where vendor packages reside.
 *
 * @var array
 * @access public
 */
    var $vendorPaths = array();
/**
 * List of additional path(s) where locale files reside.
 *
 * @var array
 * @access public
 */
    var $localePaths = array();
/**
 * List of additional path(s) where console shell files reside.
 *
 * @var array
 * @access public
 */
    var $shellPaths = array();
/**
 * Current debug level.
 *
 * @link          http://book.cakephp.org/view/44/CakePHP-Core-Configuration-Variables
 * @var integer
 * @access public
 */
    var $debug = null;
/**
 * Determines if $__objects cache should be written.
 *
 * @var boolean
 * @access private
 */
    var $__cache = false;
/**
 * Holds and key => value array of objects' types.
 *
 * @var array
 * @access private
 */
    var $__objects = array();
/**
 * Returns a singleton instance of the Configure class.
 *
 * @return Configure instance
 * @access public
 */
    function &getInstance($boot = true) {
        static $instance = array();
        if (!$instance) {
            $instance[0] =& new Configure();
            $instance[0]->__loadBootstrap($boot);
        }
        return $instance[0];
    }
/**
 * Returns an index of objects of the given type, with the physical path to each object.
 *
 * @param string    $type Type of object, i.e. 'model', 'controller', 'helper', or 'plugin'
 * @param mixed     $path Optional
 * @return Configure instance
 * @access public
 */
    function listObjects($type, $path = null, $cache = true) {
        $objects = array();
        $extension = false;
        $name = $type;

        if ($type === 'file' && !$path) {
            return false;
        } elseif ($type === 'file') {
            $extension = true;
            $name = $type . str_replace(DS, '', $path);
        }
        $_this =& Configure::getInstance();

        if (empty($_this->__objects) && $cache === true) {
            $_this->__objects = Cache::read('object_map', '_cake_core_');
        }

        if (empty($_this->__objects) || !isset($_this->__objects[$type]) || $cache !== true) {
            $types = array(
                'model' => array('suffix' => '.php', 'base' => 'AppModel', 'core' => false),
                'behavior' => array('suffix' => '.php', 'base' => 'ModelBehavior'),
                'controller' => array('suffix' => '_controller.php', 'base' => 'AppController'),
                'component' => array('suffix' => '.php', 'base' => null),
                'view' => array('suffix' => '.php', 'base' => null),
                'helper' => array('suffix' => '.php', 'base' => 'AppHelper'),
                'plugin' => array('suffix' => '', 'base' => null),
                'vendor' => array('suffix' => '', 'base' => null),
                'class' => array('suffix' => '.php', 'base' => null),
                'file' => array('suffix' => '.php', 'base' => null)
            );

            if (!isset($types[$type])) {
                return false;
            }
            $objects = array();

            if (empty($path)) {
                $path = $_this->{$type . 'Paths'};
                if (isset($types[$type]['core']) && $types[$type]['core'] === false) {
                    array_pop($path);
                }
            }
            $items = array();

            foreach ((array)$path as $dir) {
                if ($type === 'file' || $type === 'class' || strpos($dir, $type) !== false) {
                    $items = $_this->__list($dir, $types[$type]['suffix'], $extension);
                    $objects = array_merge($items, array_diff($objects, $items));
                }
            }

            if ($type !== 'file') {
                foreach ($objects as $key => $value) {
                    $objects[$key] = Inflector::camelize($value);
                }
            }
            if ($cache === true && !empty($objects)) {
                $_this->__objects[$name] = $objects;
                $_this->__cache = true;
            } else {
                return $objects;
            }
        }
        return $_this->__objects[$name];
    }
/**
 * Returns an array of filenames of PHP files in the given directory.
 *
 * @param  string $path Path to scan for files
 * @param  string $suffix if false, return only directories. if string, match and return files
 * @return array  List of directories or files in directory
 */
    function __list($path, $suffix = false, $extension = false) {
        if (!class_exists('Folder')) {
            require LIBS . 'folder.php';
        }
        $items = array();
        $Folder =& new Folder($path);
        $contents = $Folder->read(false, true);

        if (is_array($contents)) {
            if (!$suffix) {
                return $contents[0];
            } else {
                foreach ($contents[1] as $item) {
                    if (substr($item, - strlen($suffix)) === $suffix) {
                        if ($extension) {
                            $items[] = $item;
                        } else {
                            $items[] = substr($item, 0, strlen($item) - strlen($suffix));
                        }
                    }
                }
            }
        }
        return $items;
    }
/**
 * Used to store a dynamic variable in the Configure instance.
 *
 * Usage:
 * {{{
 * Configure::write('One.key1', 'value of the Configure::One[key1]');
 * Configure::write(array('One.key1' => 'value of the Configure::One[key1]'));
 * Configure::write('One', array(
 *     'key1' => 'value of the Configure::One[key1]',
 *     'key2' => 'value of the Configure::One[key2]'
 * );
 * 
 * Configure::write(array(
 *     'One.key1' => 'value of the Configure::One[key1]',
 *     'One.key2' => 'value of the Configure::One[key2]'
 * ));
 * }}}
 *
 * @link http://book.cakephp.org/view/412/write
 * @param array $config Name of var to write
 * @param mixed $value Value to set for var
 * @return void
 * @access public
 */
    function write($config, $value = null) {
        $_this =& Configure::getInstance();

        if (!is_array($config)) {
            $config = array($config => $value);
        }

        foreach ($config as $names => $value) {
            $name = $_this->__configVarNames($names);

            switch (count($name)) {
                case 3:
                    $_this->{$name[0]}[$name[1]][$name[2]] = $value;
                break;
                case 2:
                    $_this->{$name[0]}[$name[1]] = $value;
                break;
                case 1:
                    $_this->{$name[0]} = $value;
                break;
            }
        }

        if (isset($config['debug'])) {
            if ($_this->debug) {
                error_reporting(E_ALL);

                if (function_exists('ini_set')) {
                    ini_set('display_errors', 1);
                }

                if (!class_exists('Debugger')) {
                    require LIBS . 'debugger.php';
                }
                if (!class_exists('CakeLog')) {
                    require LIBS . 'cake_log.php';
                }
                Configure::write('log', LOG_NOTICE);
            } else {
                error_reporting(0);
                Configure::write('log', LOG_NOTICE);
            }
        }
    }
/**
 * Used to read information stored in the Configure instance.
 *
 * Usage
 * Configure::read('Name'); will return all values for Name
 * Configure::read('Name.key'); will return only the value of Configure::Name[key]
 *
 * @link          http://book.cakephp.org/view/413/read
 * @param string $var Variable to obtain
 * @return string value of Configure::$var
 * @access public
 */
    function read($var = 'debug') {
        $_this =& Configure::getInstance();

        if ($var === 'debug') {
            if (!isset($_this->debug)) {
                if (defined('DEBUG')) {
                    $_this->debug = DEBUG;
                } else {
                    $_this->debug = 0;
                }
            }
            return $_this->debug;
        }
        $name = $_this->__configVarNames($var);

        switch (count($name)) {
            case 3:
                if (isset($_this->{$name[0]}[$name[1]][$name[2]])) {
                    return $_this->{$name[0]}[$name[1]][$name[2]];
                }
            break;
            case 2:
                if (isset($_this->{$name[0]}[$name[1]])) {
                    return $_this->{$name[0]}[$name[1]];
                }
            break;
            case 1:
                if (isset($_this->{$name[0]})) {
                    return $_this->{$name[0]};
                }
            break;
        }
        return null;
    }
/**
 * Used to delete a variable from the Configure instance.
 *
 * Usage:
 * Configure::delete('Name'); will delete the entire Configure::Name
 * Configure::delete('Name.key'); will delete only the Configure::Name[key]
 *
 * @link          http://book.cakephp.org/view/414/delete
 * @param string $var the var to be deleted
 * @return void
 * @access public
 */
    function delete($var = null) {
        $_this =& Configure::getInstance();
        $name = $_this->__configVarNames($var);

        if (count($name) > 1) {
            unset($_this->{$name[0]}[$name[1]]);
        } else {
            unset($_this->{$name[0]});
        }
    }
/**
 * Loads a file from app/config/configure_file.php.
 * Config file variables should be formated like:
 *  $config['name'] = 'value';
 * These will be used to create dynamic Configure vars.
 *
 * Usage Configure::load('configure_file');
 *
 * @link          http://book.cakephp.org/view/415/load
 * @param string $fileName name of file to load, extension must be .php and only the name
 *                         should be used, not the extenstion
 * @return mixed false if file not found, void if load successful
 * @access public
 */
    function load($fileName) {
        $found = false;

        if (file_exists(CONFIGS . $fileName . '.php')) {
            include(CONFIGS . $fileName . '.php');
            $found = true;
        } elseif (file_exists(CACHE . 'persistent' . DS . $fileName . '.php')) {
            include(CACHE . 'persistent' . DS . $fileName . '.php');
            $found = true;
        } else {
            foreach (Configure::corePaths('cake') as $key => $path) {
                if (file_exists($path . DS . 'config' . DS . $fileName . '.php')) {
                    include($path . DS . 'config' . DS . $fileName . '.php');
                    $found = true;
                    break;
                }
            }
        }

        if (!$found) {
            return false;
        }

        if (!isset($config)) {
            $error = __("Configure::load() - no variable \$config found in %s.php", true);
            trigger_error(sprintf($error, $fileName), E_USER_WARNING);
            return false;
        }
        return Configure::write($config);
    }
/**
 * Used to determine the current version of CakePHP.
 *
 * Usage Configure::version();
 *
 * @link          http://book.cakephp.org/view/416/version
 * @return string Current version of CakePHP
 * @access public
 */
    function version() {
        $_this =& Configure::getInstance();

        if (!isset($_this->Cake['version'])) {
            require(CORE_PATH . 'cake' . DS . 'config' . DS . 'config.php');
            $_this->write($config);
        }
        return $_this->Cake['version'];
    }
/**
 * Used to write a config file to disk.
 *
 * Configure::store('Model', 'class.paths', array('Users' => array(
 *      'path' => 'users', 'plugin' => true
 * )));
 *
 * @param string $type Type of config file to write, ex: Models, Controllers, Helpers, Components
 * @param string $name file name.
 * @param array $data array of values to store.
 * @return void
 * @access public
 */
    function store($type, $name, $data = array()) {
        $write = true;
        $content = '';

        foreach ($data as $key => $value) {
            $content .= "\$config['$type']['$key']";

            if (is_array($value)) {
                $content .= " = array(";

                foreach ($value as $key1 => $value2) {
                    $value2 = addslashes($value2);
                    $content .= "'$key1' => '$value2', ";
                }
                $content .= ");\n";
            } else {
                $value = addslashes($value);
                $content .= " = '$value';\n";
            }
        }
        if (is_null($type)) {
            $write = false;
        }
        Configure::__writeConfig($content, $name, $write);
    }
/**
 * Returns a key/value list of all paths where core libs are found.
 * Passing $type only returns the values for a given value of $key.
 *
 * @param string $type valid values are: 'model', 'behavior', 'controller', 'component',
 *                      'view', 'helper', 'datasource', 'libs', and 'cake'
 * @return array numeric keyed array of core lib paths
 * @access public
 */
    function corePaths($type = null) {
        $paths = Cache::read('core_paths', '_cake_core_');
        if (!$paths) {
            $paths = array();
            $openBasedir = ini_get('open_basedir');
            if ($openBasedir) {
                $all = explode(PATH_SEPARATOR, $openBasedir);
                $all = array_flip(array_flip((array_merge(array(CAKE_CORE_INCLUDE_PATH), $all))));
            } else {
                $all = explode(PATH_SEPARATOR, ini_get('include_path'));
                $all = array_flip(array_flip((array_merge(array(CAKE_CORE_INCLUDE_PATH), $all))));
            }
            foreach ($all as $path) {
                if ($path !== DS) {
                    $path = rtrim($path, DS);
                }
                if (empty($path) || $path === '.') {
                    continue;
                }
                $cake = $path .  DS . 'cake' . DS;
                $libs = $cake . 'libs' . DS;
                if (is_dir($libs)) {
                    $paths['libs'][] = $libs;
                    $paths['model'][] = $libs . 'model' . DS;
                    $paths['behavior'][] = $libs . 'model' . DS . 'behaviors' . DS;
                    $paths['controller'][] = $libs . 'controller' . DS;
                    $paths['component'][] = $libs . 'controller' . DS . 'components' . DS;
                    $paths['view'][] = $libs . 'view' . DS;
                    $paths['helper'][] = $libs . 'view' . DS . 'helpers' . DS;
                    $paths['cake'][] = $cake;
                    $paths['vendor'][] = $path . DS . 'vendors' . DS;
                    $paths['shell'][] = $cake . 'console' . DS . 'libs' . DS;
                    break;
                }
            }
            Cache::write('core_paths', array_filter($paths), '_cake_core_');
        }
        if ($type && isset($paths[$type])) {
            return $paths[$type];
        }
        return $paths;
    }
/**
 * Creates a cached version of a configuration file.
 * Appends values passed from Configure::store() to the cached file
 *
 * @param string $content Content to write on file
 * @param string $name Name to use for cache file
 * @param boolean $write true if content should be written, false otherwise
 * @return void
 * @access private
 */
    function __writeConfig($content, $name, $write = true) {
        $file = CACHE . 'persistent' . DS . $name . '.php';

        if (Configure::read() > 0) {
            $expires = "+10 seconds";
        } else {
            $expires = "+999 days";
        }
        $cache = cache('persistent' . DS . $name . '.php', null, $expires);

        if ($cache === null) {
            cache('persistent' . DS . $name . '.php', "<?php\n\$config = array();\n", $expires);
        }

        if ($write === true) {
            if (!class_exists('File')) {
                require LIBS . 'file.php';
            }
            $fileClass = new File($file);

            if ($fileClass->writable()) {
                $fileClass->append($content);
            }
        }
    }
/**
 * Checks $name for dot notation to create dynamic Configure::$var as an array when needed.
 *
 * @param mixed $name Name to split
 * @return array Name separated in items through dot notation
 * @access private
 */
    function __configVarNames($name) {
        if (is_string($name)) {
            if (strpos($name, ".")) {
                return explode(".", $name);
            }
            return array($name);
        }
        return $name;
    }
/**
 * Build path references. Merges the supplied $paths
 * with the base paths and the default core paths.
 *
 * @param array $paths paths defines in config/bootstrap.php
 * @return void
 * @access public
 */
    function buildPaths($paths) {
        $_this =& Configure::getInstance();
        $core = $_this->corePaths();
        $basePaths = array(
            'model' => array(MODELS),
            'behavior' => array(BEHAVIORS),
            'controller' => array(CONTROLLERS),
            'component' => array(COMPONENTS),
            'view' => array(VIEWS),
            'helper' => array(HELPERS),
            'plugin' => array(APP . 'plugins' . DS),
            'vendor' => array(APP . 'vendors' . DS, VENDORS),
            'locale' => array(APP . 'locale' . DS),
            'shell' => array(),
            'datasource' => array(MODELS . 'datasources')
        );

        foreach ($basePaths as $type => $default) {
            $pathsVar = $type . 'Paths';
            $merge = array();

            if (isset($core[$type])) {
                $merge = $core[$type];
            }
            if ($type === 'model' || $type === 'controller' || $type === 'helper') {
                $merge = array_merge(array(APP), $merge);
            }

            if (!is_array($default)) {
                $default = array($default);
            }
            $_this->{$pathsVar} = $default;

            if (isset($paths[$pathsVar]) && !empty($paths[$pathsVar])) {
                $path = array_flip(array_flip((array_merge(
                    $_this->{$pathsVar}, (array)$paths[$pathsVar], $merge
                ))));
                $_this->{$pathsVar} = array_values($path);
            } else {
                $path = array_flip(array_flip((array_merge($_this->{$pathsVar}, $merge))));
                $_this->{$pathsVar} = array_values($path);
            }
        }
    }
/**
 * Loads app/config/bootstrap.php.
 * If the alternative paths are set in this file
 * they will be added to the paths vars.
 *
 * @param boolean $boot Load application bootstrap (if true)
 * @return void
 * @access private
 */
    function __loadBootstrap($boot) {
        $modelPaths = $behaviorPaths = $controllerPaths = $componentPaths = $viewPaths = $helperPaths = $pluginPaths = $vendorPaths = $localePaths = $shellPaths = null;

        if ($boot) {
            Configure::write('App', array('base' => false, 'baseUrl' => false, 'dir' => APP_DIR, 'webroot' => WEBROOT_DIR));

            if (!include(CONFIGS . 'core.php')) {
                trigger_error(sprintf(__("Can't find application core file. Please create %score.php, and make sure it is readable by PHP.", true), CONFIGS), E_USER_ERROR);
            }

            if (!include(CONFIGS . 'bootstrap.php')) {
                trigger_error(sprintf(__("Can't find application bootstrap file. Please create %sbootstrap.php, and make sure it is readable by PHP.", true), CONFIGS), E_USER_ERROR);
            }

            if (Configure::read('Cache.disable') !== true) {
                $cache = Cache::config('default');

                if (empty($cache['settings'])) {
                    trigger_error('Cache not configured properly. Please check Cache::config(); in APP/config/core.php', E_USER_WARNING);
                    $cache = Cache::config('default', array('engine' => 'File'));
                }
                $path = $prefix = $duration = null;

                if (!empty($cache['settings']['path'])) {
                    $path = realpath($cache['settings']['path']);
                } else {
                    $prefix = $cache['settings']['prefix'];
                }

                if (Configure::read() >= 1) {
                    $duration = '+10 seconds';
                } else {
                    $duration = '+999 days';
                }

                if (Cache::config('_cake_core_') === false) {
                    Cache::config('_cake_core_', array_merge($cache['settings'], array(
                        'prefix' => $prefix . 'cake_core_', 'path' => $path . DS . 'persistent' . DS,
                        'serialize' => true, 'duration' => $duration
                    )));
                }

                if (Cache::config('_cake_model_') === false) {
                    Cache::config('_cake_model_', array_merge($cache['settings'], array(
                        'prefix' => $prefix . 'cake_model_', 'path' => $path . DS . 'models' . DS,
                        'serialize' => true, 'duration' => $duration
                    )));
                }
                Cache::config('default');
            }
            Configure::buildPaths(compact(
                'modelPaths', 'viewPaths', 'controllerPaths', 'helperPaths', 'componentPaths',
                'behaviorPaths', 'pluginPaths', 'vendorPaths', 'localePaths', 'shellPaths'
            ));
        }
    }
/**
 * Caches the object map when the instance of the Configure class is destroyed
 *
 * @access public
 */
    function __destruct() {
        if ($this->__cache) {
            Cache::write('object_map', array_filter($this->__objects), '_cake_core_');
        }
    }
}
/**
 * Class and file loader.
 *
 * @link          http://book.cakephp.org/view/499/The-App-Class
 * @since         CakePHP(tm) v 1.2.0.6001
 * @package       cake
 * @subpackage    cake.cake.libs
 */
class App extends Object {
/**
 * Paths to search for files.
 *
 * @var array
 * @access public
 */
    var $search = array();
/**
 * Whether or not to return the file that is loaded.
 *
 * @var boolean
 * @access public
 */
    var $return = false;
/**
 * Determines if $__maps and $__paths cache should be written.
 *
 * @var boolean
 * @access private
 */
    var $__cache = false;
/**
 * Holds key/value pairs of $type => file path.
 *
 * @var array
 * @access private
 */
    var $__map = array();
/**
 * Holds paths for deep searching of files.
 *
 * @var array
 * @access private
 */
    var $__paths = array();
/**
 * Holds loaded files.
 *
 * @var array
 * @access private
 */
    var $__loaded = array();
/**
 * Finds classes based on $name or specific file(s) to search.
 *
 * @link          http://book.cakephp.org/view/529/Using-App-import
 * @param mixed $type The type of Class if passed as a string, or all params can be passed as
 *                    an single array to $type,
 * @param string $name Name of the Class or a unique name for the file
 * @param mixed $parent boolean true if Class Parent should be searched, accepts key => value
 *              array('parent' => $parent ,'file' => $file, 'search' => $search, 'ext' => '$ext');
 *              $ext allows setting the extension of the file name
 *              based on Inflector::underscore($name) . ".$ext";
 * @param array $search paths to search for files, array('path 1', 'path 2', 'path 3');
 * @param string $file full name of the file to search for including extension
 * @param boolean $return, return the loaded file, the file must have a return
 *                         statement in it to work: return $variable;
 * @return boolean true if Class is already in memory or if file is found and loaded, false if not
 * @access public
 */
    function import($type = null, $name = null, $parent = true, $search = array(), $file = null, $return = false) {
        $plugin = $directory = null;

        if (is_array($type)) {
            extract($type, EXTR_OVERWRITE);
        }

        if (is_array($parent)) {
            extract($parent, EXTR_OVERWRITE);
        }

        if ($name === null && $file === null) {
            $name = $type;
            $type = 'Core';
        } elseif ($name === null) {
            $type = 'File';
        }

        if (is_array($name)) {
            foreach ($name as $class) {
                $tempType = $type;
                $plugin = null;

                if (strpos($class, '.') !== false) {
                    $value = explode('.', $class);
                    $count = count($value);

                    if ($count > 2) {
                        $tempType = $value[0];
                        $plugin = $value[1] . '.';
                        $class = $value[2];
                    } elseif ($count === 2 && ($type === 'Core' || $type === 'File')) {
                        $tempType = $value[0];
                        $class = $value[1];
                    } else {
                        $plugin = $value[0] . '.';
                        $class = $value[1];
                    }
                }

                if (!App::import($tempType, $plugin . $class)) {
                    return false;
                }
            }
            return true;
        }

        if ($name != null && strpos($name, '.') !== false) {
            list($plugin, $name) = explode('.', $name);
        }
        $_this =& App::getInstance();
        $_this->return = $return;

        if (isset($ext)) {
            $file = Inflector::underscore($name) . ".$ext";
        }
        $ext = $_this->__settings($type, $plugin, $parent);

        if ($name != null && !class_exists($name . $ext['class'])) {
            if ($load = $_this->__mapped($name . $ext['class'], $type, $plugin)) {
                if ($_this->__load($load)) {
                    $_this->__overload($type, $name . $ext['class']);

                    if ($_this->return) {
                        $value = include $load;
                        return $value;
                    }
                    return true;
                } else {
                    $_this->__remove($name . $ext['class'], $type, $plugin);
                    $_this->__cache = true;
                }
            }
            if (!empty($search)) {
                $_this->search = $search;
            } elseif ($plugin) {
                $_this->search = $_this->__paths('plugin');
            } else {
                $_this->search = $_this->__paths($type);
            }
            $find = $file;

            if ($find === null) {
                $find = Inflector::underscore($name . $ext['suffix']).'.php';

                if ($plugin) {
                    $paths = $_this->search;
                    foreach ($paths as $key => $value) {
                        $_this->search[$key] = $value . $ext['path'];
                    }
                    $plugin = Inflector::camelize($plugin);
                }
            }

            if (strtolower($type) !== 'vendor' && empty($search) && $_this->__load($file)) {
                $directory = false;
            } else {
                $file = $find;
                $directory = $_this->__find($find, true);
            }

            if ($directory !== null) {
                $_this->__cache = true;
                $_this->__map($directory . $file, $name . $ext['class'], $type, $plugin);
                $_this->__overload($type, $name . $ext['class']);

                if ($_this->return) {
                    $value = include $directory . $file;
                    return $value;
                }
                return true;
            }
            return false;
        }
        return true;
    }
/**
 * Returns a single instance of App.
 *
 * @return object
 * @access public
 */
    function &getInstance() {
        static $instance = array();
        if (!$instance) {
            $instance[0] =& new App();
            $instance[0]->__map = Cache::read('file_map', '_cake_core_');
        }
        return $instance[0];
    }
/**
 * Locates the $file in $__paths, searches recursively.
 *
 * @param string $file full file name
 * @param boolean $recursive search $__paths recursively
 * @return mixed boolean on fail, $file directory path on success
 * @access private
 */
    function __find($file, $recursive = true) {
        if (empty($this->search)) {
            return null;
        } elseif (is_string($this->search)) {
            $this->search = array($this->search);
        }

        if (empty($this->__paths)) {
            $this->__paths = Cache::read('dir_map', '_cake_core_');
        }

        foreach ($this->search as $path) {
            $path = rtrim($path, DS);

            if ($path === rtrim(APP, DS)) {
                $recursive = false;
            }
            if ($recursive === false) {
                if ($this->__load($path . DS . $file)) {
                    return $path . DS;
                }
                continue;
            }
            if (!isset($this->__paths[$path])) {
                if (!class_exists('Folder')) {
                    require LIBS . 'folder.php';
                }
                $Folder =& new Folder();
                $directories = $Folder->tree($path, false, 'dir');
                $this->__paths[$path] = $directories;
            }

            foreach ($this->__paths[$path] as $directory) {
                if ($this->__load($directory . DS . $file)) {
                    return $directory . DS;
                }
            }
        }
        return null;
    }
/**
 * Attempts to load $file.
 *
 * @param string $file full path to file including file name
 * @return boolean
 * @access private
 */
    function __load($file) {
        if (empty($file)) {
            return false;
        }
        if (!$this->return && isset($this->__loaded[$file])) {
            return true;
        }
        if (file_exists($file)) {
            if (!$this->return) {
                require($file);
                $this->__loaded[$file] = true;
            }
            return true;
        }
        return false;
    }
/**
 * Maps the $name to the $file.
 *
 * @param string $file full path to file
 * @param string $name unique name for this map
 * @param string $type type object being mapped
 * @param string $plugin if object is from a plugin, the name of the plugin
 * @access private
 */
    function __map($file, $name, $type, $plugin) {
        if ($plugin) {
            $plugin = Inflector::camelize($plugin);
            $this->__map['Plugin'][$plugin][$type][$name] = $file;
        } else {
            $this->__map[$type][$name] = $file;
        }
    }
/**
 * Returns a file's complete path.
 *
 * @param string $name unique name
 * @param string $type type object
 * @param string $plugin if object is from a plugin, the name of the plugin
 * @return mixed, file path if found, false otherwise
 * @access private
 */
    function __mapped($name, $type, $plugin) {
        if ($plugin) {
            $plugin = Inflector::camelize($plugin);

            if (isset($this->__map['Plugin'][$plugin][$type]) && isset($this->__map['Plugin'][$plugin][$type][$name])) {
                return $this->__map['Plugin'][$plugin][$type][$name];
            }
            return false;
        }

        if (isset($this->__map[$type]) && isset($this->__map[$type][$name])) {
            return $this->__map[$type][$name];
        }
        return false;
    }
/**
 * Used to overload objects as needed.
 *
 * @param string $type Model or Helper
 * @param string $name Class name to overload
 * @access private
 */
    function __overload($type, $name) {
        if (($type === 'Model' || $type === 'Helper') && strtolower($name) != 'schema') {
            Overloadable::overload($name);
        }
    }
/**
 * Loads parent classes based on $type.
 * Returns a prefix or suffix needed for loading files.
 *
 * @param string $type type of object
 * @param string $plugin name of plugin
 * @param boolean $parent false will not attempt to load parent
 * @return array
 * @access private
 */
    function __settings($type, $plugin, $parent) {
        if (!$parent) {
            return null;
        }

        if ($plugin) {
            $plugin = Inflector::underscore($plugin);
            $name = Inflector::camelize($plugin);
        }
        $path = null;
        $load = strtolower($type);

        switch ($load) {
            case 'model':
                if (!class_exists('Model')) {
                    App::import('Core', 'Model', false, Configure::corePaths('model'));
                }
                if (!class_exists('AppModel')) {
                    App::import($type, 'AppModel', false, Configure::read('modelPaths'));
                }
                if ($plugin) {
                    if (!class_exists($name . 'AppModel')) {
                        App::import($type, $plugin . '.' . $name . 'AppModel', false, array(), $plugin . DS . $plugin . '_app_model.php');
                    }
                    $path = $plugin . DS . 'models' . DS;
                }
                return array('class' => null, 'suffix' => null, 'path' => $path);
            break;
            case 'behavior':
                if ($plugin) {
                    $path = $plugin . DS . 'models' . DS . 'behaviors' . DS;
                }
                return array('class' => $type, 'suffix' => null, 'path' => $path);
            break;
            case 'controller':
                App::import($type, 'AppController', false);
                if ($plugin) {
                    App::import($type, $plugin . '.' . $name . 'AppController', false, array(), $plugin . DS . $plugin . '_app_controller.php');
                    $path = $plugin . DS . 'controllers' . DS;
                }
                return array('class' => $type, 'suffix' => $type, 'path' => $path);
            break;
            case 'component':
                if ($plugin) {
                    $path = $plugin . DS . 'controllers' . DS . 'components' . DS;
                }
                return array('class' => $type, 'suffix' => null, 'path' => $path);
            break;
            case 'view':
                if ($plugin) {
                    $path = $plugin . DS . 'views' . DS;
                }
                return array('class' => $type, 'suffix' => null, 'path' => $path);
            break;
            case 'helper':
                if (!class_exists('AppHelper')) {
                    App::import($type, 'AppHelper', false);
                }
                if ($plugin) {
                    $path = $plugin . DS . 'views' . DS . 'helpers' . DS;
                }
                return array('class' => $type, 'suffix' => null, 'path' => $path);
            break;
            case 'vendor':
                if ($plugin) {
                    $path = $plugin . DS . 'vendors' . DS;
                }
                return array('class' => null, 'suffix' => null, 'path' => $path);
            break;
            default:
                $type = $suffix = $path = null;
            break;
        }
        return array('class' => null, 'suffix' => null, 'path' => null);
    }
/**
 * Returns default search paths.
 *
 * @param string $type type of object to be searched
 * @return array list of paths
 * @access private
 */
    function __paths($type) {
        $type = strtolower($type);

        if ($type === 'core') {
            $path = Configure::corePaths();
            $paths = array();

            foreach ($path as $key => $value) {
                $count = count($key);
                for ($i = 0; $i < $count; $i++) {
                    $paths[] = $path[$key][$i];
                }
            }
            return $paths;
        }

        if ($paths = Configure::read($type . 'Paths')) {
            return $paths;
        }

        switch ($type) {
            case 'plugin':
                return array(APP . 'plugins' . DS);
            case 'vendor':
                return array(APP . 'vendors' . DS, VENDORS, APP . 'plugins' . DS);
            case 'controller':
                return array(APP . 'controllers' . DS, APP);
            case 'model':
                return array(APP . 'models' . DS, APP);
            case 'view':
                return array(APP . 'views' . DS);
        }
    }
/**
 * Removes file location from map if the file has been deleted.
 *
 * @param string $name name of object
 * @param string $type type of object
 * @param string $plugin name of plugin
 * @return void
 * @access private
 */
    function __remove($name, $type, $plugin) {
        if ($plugin) {
            $plugin = Inflector::camelize($plugin);
            unset($this->__map['Plugin'][$plugin][$type][$name]);
        } else {
            unset($this->__map[$type][$name]);
        }
    }
/**
 * Object destructor.
 *
 * Writes cache file if changes have been made to the $__map or $__paths
 *
 * @return void
 * @access private
 */
    function __destruct() {
        if ($this->__cache) {
            $core = Configure::corePaths('cake');
            unset($this->__paths[rtrim($core[0], DS)]);
            Cache::write('dir_map', array_filter($this->__paths), '_cake_core_');
            Cache::write('file_map', array_filter($this->__map), '_cake_core_');
        }
    }
}
?>

---