mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-26 00:37:18 +00:00
323 lines
10 KiB
PHP
323 lines
10 KiB
PHP
<?php
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/**
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* Dispatcher takes the URL information, parses it for paramters and
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* tells the involved controllers what to do.
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*
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* This is the heart of Cake's operation.
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Routing
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* @since CakePHP(tm) v 0.2.9
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* List of helpers to include
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*/
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App::uses('Router', 'Routing');
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App::uses('CakeRequest', 'Network');
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App::uses('CakeResponse', 'Network');
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App::uses('Controller', 'Controller');
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App::uses('Scaffold', 'Controller');
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App::uses('View', 'View');
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App::uses('Debugger', 'Utility');
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/**
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* Dispatcher converts Requests into controller actions. It uses the dispatched Request
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* to locate and load the correct controller. If found, the requested action is called on
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* the controller.
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*
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* @package Cake.Routing
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*/
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class Dispatcher {
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/**
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* Constructor.
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*
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* @param string $base The base directory for the application. Writes `App.base` to Configure.
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*/
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public function __construct($base = false) {
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if ($base !== false) {
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Configure::write('App.base', $base);
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}
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}
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/**
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* Dispatches and invokes given Request, handing over control to the involved controller. If the controller is set
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* to autoRender, via Controller::$autoRender, then Dispatcher will render the view.
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*
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* Actions in CakePHP can be any public method on a controller, that is not declared in Controller. If you
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* want controller methods to be public and in-accesible by URL, then prefix them with a `_`.
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* For example `public function _loadPosts() { }` would not be accessible via URL. Private and protected methods
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* are also not accessible via URL.
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*
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* If no controller of given name can be found, invoke() will throw an exception.
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* If the controller is found, and the action is not found an exception will be thrown.
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*
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* @param CakeRequest $request Request object to dispatch.
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* @param CakeResponse $response Response object to put the results of the dispatch into.
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* @param array $additionalParams Settings array ("bare", "return") which is melded with the GET and POST params
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* @return boolean Success
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* @throws MissingControllerException, MissingActionException, PrivateActionException if any of those error states
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* are encountered.
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*/
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public function dispatch(CakeRequest $request, CakeResponse $response, $additionalParams = array()) {
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if ($this->asset($request->url, $response) || $this->cached($request->here)) {
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return;
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}
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$request = $this->parseParams($request, $additionalParams);
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Router::setRequestInfo($request);
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$controller = $this->_getController($request, $response);
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if (!($controller instanceof Controller)) {
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throw new MissingControllerException(array(
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'controller' => Inflector::camelize($request->params['controller']) . 'Controller'
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));
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}
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return $this->_invoke($controller, $request, $response);
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}
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/**
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* Initializes the components and models a controller will be using.
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* Triggers the controller action, and invokes the rendering if Controller::$autoRender is true and echo's the output.
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* Otherwise the return value of the controller action are returned.
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*
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* @param Controller $controller Controller to invoke
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* @param CakeRequest $request The request object to invoke the controller for.
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* @return string Output as sent by controller
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* @throws MissingActionException when the action being called is missing.
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*/
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protected function _invoke(Controller $controller, CakeRequest $request, CakeResponse $response) {
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$controller->constructClasses();
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$controller->startupProcess();
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$render = true;
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$result = $controller->invokeAction($request);
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if ($result instanceof CakeResponse) {
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$render = false;
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$response = $result;
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}
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if ($render && $controller->autoRender) {
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$response = $controller->render();
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} elseif ($response->body() === null) {
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$response->body($result);
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}
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$controller->shutdownProcess();
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if (isset($request->params['return'])) {
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return $response->body();
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}
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$response->send();
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}
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/**
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* Applies Routing and additionalParameters to the request to be dispatched.
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* If Routes have not been loaded they will be loaded, and app/Config/routes.php will be run.
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*
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* @param CakeRequest $request CakeRequest object to mine for parameter information.
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* @param array $additionalParams An array of additional parameters to set to the request.
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* Useful when Object::requestAction() is involved
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* @return CakeRequest The request object with routing params set.
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*/
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public function parseParams(CakeRequest $request, $additionalParams = array()) {
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if (count(Router::$routes) == 0) {
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$namedExpressions = Router::getNamedExpressions();
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extract($namedExpressions);
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$this->_loadRoutes();
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}
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$params = Router::parse($request->url);
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$request->addParams($params);
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if (!empty($additionalParams)) {
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$request->addParams($additionalParams);
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}
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return $request;
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}
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/**
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* Get controller to use, either plugin controller or application controller
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*
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* @param CakeRequest $request Request object
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* @param CakeResponse $response Response for the controller.
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* @return mixed name of controller if not loaded, or object if loaded
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*/
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protected function _getController($request, $response) {
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$ctrlClass = $this->_loadController($request);
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if (!$ctrlClass) {
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return false;
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}
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return new $ctrlClass($request, $response);
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}
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/**
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* Load controller and return controller classname
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*
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* @param array $params Array of parameters
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* @return string|bool Name of controller class name
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*/
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protected function _loadController($request) {
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$pluginName = $pluginPath = $controller = null;
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if (!empty($request->params['plugin'])) {
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$pluginName = $controller = Inflector::camelize($request->params['plugin']);
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$pluginPath = $pluginName . '.';
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}
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if (!empty($request->params['controller'])) {
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$controller = Inflector::camelize($request->params['controller']);
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}
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if ($pluginPath . $controller) {
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$class = $controller . 'Controller';
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App::uses('AppController', 'Controller');
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App::uses($pluginName . 'AppController', $pluginPath . 'Controller');
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App::uses($class, $pluginPath . 'Controller');
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if (class_exists($class)) {
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return $class;
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}
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}
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return false;
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}
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/**
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* Loads route configuration
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*
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* @return void
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*/
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protected function _loadRoutes() {
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include APP . 'Config' . DS . 'routes.php';
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}
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/**
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* Outputs cached dispatch view cache
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*
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* @param string $path Requested URL path
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*/
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public function cached($path) {
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if (Configure::read('Cache.check') === true) {
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if ($path == '/') {
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$path = 'home';
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}
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$path = strtolower(Inflector::slug($path));
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$filename = CACHE . 'views' . DS . $path . '.php';
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if (!file_exists($filename)) {
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$filename = CACHE . 'views' . DS . $path . '_index.php';
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}
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if (file_exists($filename)) {
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$controller = null;
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$view = new View($controller);
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return $view->renderCache($filename, microtime(true));
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}
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}
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return false;
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}
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/**
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* Checks if a requested asset exists and sends it to the browser
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*
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* @param string $url Requested URL
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* @param CakeResponse $response The response object to put the file contents in.
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* @return boolean True on success if the asset file was found and sent
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*/
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public function asset($url, CakeResponse $response) {
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if (strpos($url, '..') !== false || strpos($url, '.') === false) {
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return false;
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}
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$filters = Configure::read('Asset.filter');
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$isCss = (
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strpos($url, 'ccss/') === 0 ||
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preg_match('#^(theme/([^/]+)/ccss/)|(([^/]+)(?<!css)/ccss)/#i', $url)
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);
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$isJs = (
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strpos($url, 'cjs/') === 0 ||
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preg_match('#^/((theme/[^/]+)/cjs/)|(([^/]+)(?<!js)/cjs)/#i', $url)
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);
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if (($isCss && empty($filters['css'])) || ($isJs && empty($filters['js']))) {
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$response->statusCode(404);
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$response->send();
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return true;
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} elseif ($isCss) {
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include WWW_ROOT . DS . $filters['css'];
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return true;
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} elseif ($isJs) {
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include WWW_ROOT . DS . $filters['js'];
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return true;
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}
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$pathSegments = explode('.', $url);
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$ext = array_pop($pathSegments);
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$parts = explode('/', $url);
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$assetFile = null;
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if ($parts[0] === 'theme') {
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$themeName = $parts[1];
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unset($parts[0], $parts[1]);
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$fileFragment = implode(DS, $parts);
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$path = App::themePath($themeName) . 'webroot' . DS;
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if (file_exists($path . $fileFragment)) {
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$assetFile = $path . $fileFragment;
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}
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} else {
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$plugin = Inflector::camelize($parts[0]);
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if (CakePlugin::loaded($plugin)) {
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unset($parts[0]);
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$fileFragment = implode(DS, $parts);
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$pluginWebroot = CakePlugin::path($plugin) . 'webroot' . DS;
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if (file_exists($pluginWebroot . $fileFragment)) {
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$assetFile = $pluginWebroot . $fileFragment;
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}
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}
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}
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if ($assetFile !== null) {
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$this->_deliverAsset($response, $assetFile, $ext);
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return true;
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}
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return false;
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}
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/**
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* Sends an asset file to the client
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*
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* @param CakeResponse $response The response object to use.
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* @param string $assetFile Path to the asset file in the file system
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* @param string $ext The extension of the file to determine its mime type
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* @return void
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*/
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protected function _deliverAsset(CakeResponse $response, $assetFile, $ext) {
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ob_start();
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$compressionEnabled = Configure::read('Asset.compress') && $response->compress();
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if ($response->type($ext) == $ext) {
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$contentType = 'application/octet-stream';
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$agent = env('HTTP_USER_AGENT');
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if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent) || preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) {
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$contentType = 'application/octetstream';
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}
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$response->type($contentType);
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}
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$response->cache(filemtime($assetFile));
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$response->send();
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ob_clean();
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if ($ext === 'css' || $ext === 'js') {
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include($assetFile);
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} else {
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readfile($assetFile);
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}
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if ($compressionEnabled) {
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ob_end_flush();
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}
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}
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}
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