660 lines
18 KiB
PHP
660 lines
18 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 versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, 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 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake
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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::import('Core', 'Router');
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App::import('Controller', 'Controller', false);
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/**
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* Dispatcher translates URLs to controller-action-paramter triads.
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*
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* Dispatches the request, creating appropriate models and controllers.
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*
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* @package cake
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* @subpackage cake.cake
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*/
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class Dispatcher extends Object {
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/**
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* Base URL
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*
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* @var string
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* @access public
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*/
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var $base = false;
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/**
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* webroot path
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*
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* @var string
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* @access public
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*/
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var $webroot = '/';
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/**
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* Current URL
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*
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* @var string
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* @access public
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*/
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var $here = false;
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/**
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* the params for this request
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*
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* @var string
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* @access public
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*/
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var $params = null;
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/**
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* Constructor.
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*/
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function __construct($url = null, $base = false) {
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if ($base !== false) {
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Configure::write('App.base', $base);
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}
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if ($url !== null) {
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return $this->dispatch($url);
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}
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}
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/**
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* Dispatches and invokes given URL, handing over control to the involved controllers, and then renders the
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* results (if autoRender is set).
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*
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* If no controller of given name can be found, invoke() shows error messages in
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* the form of Missing Controllers information. It does the same with Actions (methods of Controllers are called
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* Actions).
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*
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* @param string $url URL information to work on
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* @param array $additionalParams Settings array ("bare", "return") which is melded with the GET and POST params
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* @return boolean Success
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* @access public
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*/
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function dispatch($url = null, $additionalParams = array()) {
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if ($this->base === false) {
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$this->base = $this->baseUrl();
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}
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if (is_array($url)) {
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$url = $this->__extractParams($url, $additionalParams);
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} else {
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if ($url) {
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$_GET['url'] = $url;
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}
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$url = $this->getUrl();
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$this->params = array_merge($this->parseParams($url), $additionalParams);
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}
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$this->here = $this->base . '/' . $url;
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if ($this->asset($url) || $this->cached($url)) {
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return;
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}
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$controller =& $this->__getController();
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if (!is_object($controller)) {
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Router::setRequestInfo(array($this->params, array('base' => $this->base, 'webroot' => $this->webroot)));
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return $this->cakeError('missingController', array(array(
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'className' => Inflector::camelize($this->params['controller']) . 'Controller',
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'webroot' => $this->webroot,
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'url' => $url,
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'base' => $this->base
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)));
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}
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$privateAction = $this->params['action'][0] === '_';
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$prefixes = Router::prefixes();
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if (!empty($prefixes)) {
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if (isset($this->params['prefix'])) {
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$this->params['action'] = $this->params['prefix'] . '_' . $this->params['action'];
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} elseif (strpos($this->params['action'], '_') > 0) {
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list($prefix, $action) = explode('_', $this->params['action']);
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$privateAction = in_array($prefix, $prefixes);
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}
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}
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Router::setRequestInfo(array(
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$this->params, array('base' => $this->base, 'here' => $this->here, 'webroot' => $this->webroot)
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));
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if ($privateAction) {
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return $this->cakeError('privateAction', array(array(
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'className' => Inflector::camelize($this->params['controller'] . "Controller"),
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'action' => $this->params['action'],
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'webroot' => $this->webroot,
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'url' => $url,
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'base' => $this->base
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)));
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}
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$controller->base = $this->base;
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$controller->here = $this->here;
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$controller->webroot = $this->webroot;
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$controller->plugin = isset($this->params['plugin']) ? $this->params['plugin'] : null;
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$controller->params =& $this->params;
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$controller->action =& $this->params['action'];
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$controller->passedArgs = array_merge($this->params['pass'], $this->params['named']);
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if (!empty($this->params['data'])) {
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$controller->data =& $this->params['data'];
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} else {
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$controller->data = null;
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}
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if (isset($this->params['return']) && $this->params['return'] == 1) {
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$controller->autoRender = false;
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}
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if (!empty($this->params['bare'])) {
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$controller->autoLayout = false;
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}
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return $this->_invoke($controller, $this->params);
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}
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/**
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* Initializes the components and models a controller will be using.
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* Triggers the controller action, and invokes the rendering if Controller::$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 object $controller Controller to invoke
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* @param array $params Parameters with at least the 'action' to invoke
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* @param boolean $missingAction Set to true if missing action should be rendered, false otherwise
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* @return string Output as sent by controller
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* @access protected
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*/
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function _invoke(&$controller, $params) {
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$controller->constructClasses();
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$controller->startupProcess();
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$methods = array_flip($controller->methods);
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if (!isset($methods[strtolower($params['action'])])) {
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if ($controller->scaffold !== false) {
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App::import('Controller', 'Scaffold', false);
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return new Scaffold($controller, $params);
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}
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return $this->cakeError('missingAction', array(array(
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'className' => Inflector::camelize($params['controller']."Controller"),
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'action' => $params['action'],
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'webroot' => $this->webroot,
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'url' => $this->here,
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'base' => $this->base
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)));
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}
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$output = call_user_func_array(array(&$controller, $params['action']), $params['pass']);
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if ($controller->autoRender) {
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$controller->output = $controller->render();
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} elseif (empty($controller->output)) {
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$controller->output = $output;
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}
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$controller->shutdownProcess();
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if (isset($params['return'])) {
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return $controller->output;
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}
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echo($controller->output);
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}
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/**
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* Sets the params when $url is passed as an array to Object::requestAction();
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* Merges the $url and $additionalParams and creates a string url.
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*
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* @param array $url Array or request parameters
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* @param array $additionalParams Array of additional parameters.
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* @return string $url The generated url string.
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* @access private
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*/
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function __extractParams($url, $additionalParams = array()) {
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$defaults = array('pass' => array(), 'named' => array(), 'form' => array());
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$params = array_merge($defaults, $url, $additionalParams);
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$this->params = $params;
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$params += array('base' => false, 'url' => array());
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return ltrim(Router::reverse($params), '/');
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}
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/**
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* Returns array of GET and POST parameters. GET parameters are taken from given URL.
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*
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* @param string $fromUrl URL to mine for parameter information.
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* @return array Parameters found in POST and GET.
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* @access public
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*/
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function parseParams($fromUrl) {
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$params = array();
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if (isset($_POST)) {
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$params['form'] = $_POST;
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if (ini_get('magic_quotes_gpc') === '1') {
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$params['form'] = stripslashes_deep($params['form']);
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}
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if (env('HTTP_X_HTTP_METHOD_OVERRIDE')) {
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$params['form']['_method'] = env('HTTP_X_HTTP_METHOD_OVERRIDE');
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}
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if (isset($params['form']['_method'])) {
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if (!empty($_SERVER)) {
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$_SERVER['REQUEST_METHOD'] = $params['form']['_method'];
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} else {
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$_ENV['REQUEST_METHOD'] = $params['form']['_method'];
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}
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unset($params['form']['_method']);
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}
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}
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$namedExpressions = Router::getNamedExpressions();
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extract($namedExpressions);
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include CONFIGS . 'routes.php';
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$params = array_merge(Router::parse($fromUrl), $params);
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if (strlen($params['action']) === 0) {
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$params['action'] = 'index';
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}
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if (isset($params['form']['data'])) {
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$params['data'] = $params['form']['data'];
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unset($params['form']['data']);
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}
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if (isset($_GET)) {
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if (ini_get('magic_quotes_gpc') === '1') {
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$url = stripslashes_deep($_GET);
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} else {
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$url = $_GET;
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}
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if (isset($params['url'])) {
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$params['url'] = array_merge($params['url'], $url);
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} else {
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$params['url'] = $url;
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}
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}
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foreach ($_FILES as $name => $data) {
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if ($name != 'data') {
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$params['form'][$name] = $data;
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}
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}
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if (isset($_FILES['data'])) {
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foreach ($_FILES['data'] as $key => $data) {
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foreach ($data as $model => $fields) {
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if (is_array($fields)) {
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foreach ($fields as $field => $value) {
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if (is_array($value)) {
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foreach ($value as $k => $v) {
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$params['data'][$model][$field][$k][$key] = $v;
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}
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} else {
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$params['data'][$model][$field][$key] = $value;
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}
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}
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} else {
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$params['data'][$model][$key] = $fields;
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}
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}
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}
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}
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return $params;
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}
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/**
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* Returns a base URL and sets the proper webroot
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*
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* @return string Base URL
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* @access public
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*/
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function baseUrl() {
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$dir = $webroot = null;
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$config = Configure::read('App');
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extract($config);
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if (!$base) {
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$base = $this->base;
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}
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if ($base !== false) {
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$this->webroot = $base . '/';
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return $this->base = $base;
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}
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if (!$baseUrl) {
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$replace = array('<', '>', '*', '\'', '"');
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$base = str_replace($replace, '', dirname(env('PHP_SELF')));
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if ($webroot === 'webroot' && $webroot === basename($base)) {
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$base = dirname($base);
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}
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if ($dir === 'app' && $dir === basename($base)) {
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$base = dirname($base);
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}
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if ($base === DS || $base === '.') {
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$base = '';
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}
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$this->webroot = $base .'/';
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return $base;
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}
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$file = '/' . basename($baseUrl);
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$base = dirname($baseUrl);
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if ($base === DS || $base === '.') {
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$base = '';
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}
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$this->webroot = $base .'/';
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if (!empty($base)) {
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if (strpos($this->webroot, $dir) === false) {
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$this->webroot .= $dir . '/' ;
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}
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if (strpos($this->webroot, $webroot) === false) {
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$this->webroot .= $webroot . '/';
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}
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}
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return $base . $file;
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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 array $params Array of parameters
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* @return mixed name of controller if not loaded, or object if loaded
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* @access private
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*/
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function &__getController() {
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$controller = false;
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$ctrlClass = $this->__loadController($this->params);
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if (!$ctrlClass) {
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return $controller;
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}
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$ctrlClass .= 'Controller';
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if (class_exists($ctrlClass)) {
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$controller =& new $ctrlClass();
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}
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return $controller;
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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 $params Array of parameters
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* @return string|bool Name of controller class name
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* @access private
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*/
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function __loadController($params) {
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$pluginName = $pluginPath = $controller = null;
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if (!empty($params['plugin'])) {
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$pluginName = $controller = Inflector::camelize($params['plugin']);
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$pluginPath = $pluginName . '.';
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}
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if (!empty($params['controller'])) {
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$controller = Inflector::camelize($params['controller']);
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}
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if ($pluginPath . $controller) {
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if (App::import('Controller', $pluginPath . $controller)) {
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return $controller;
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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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* Returns the REQUEST_URI from the server environment, or, failing that,
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* constructs a new one, using the PHP_SELF constant and other variables.
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*
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* @return string URI
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* @access public
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*/
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function uri() {
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foreach (array('HTTP_X_REWRITE_URL', 'REQUEST_URI', 'argv') as $var) {
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if ($uri = env($var)) {
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if ($var == 'argv') {
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$uri = $uri[0];
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}
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break;
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}
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}
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$base = preg_replace('/^\//', '', '' . Configure::read('App.baseUrl'));
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if ($base) {
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$uri = preg_replace('/^(?:\/)?(?:' . preg_quote($base, '/') . ')?(?:url=)?/', '', $uri);
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}
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if (PHP_SAPI == 'isapi') {
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$uri = preg_replace('/^(?:\/)?(?:\/)?(?:\?)?(?:url=)?/', '', $uri);
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}
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if (!empty($uri)) {
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if (key($_GET) && strpos(key($_GET), '?') !== false) {
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unset($_GET[key($_GET)]);
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}
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$uri = explode('?', $uri, 2);
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if (isset($uri[1])) {
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parse_str($uri[1], $_GET);
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}
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$uri = $uri[0];
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} else {
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$uri = env('QUERY_STRING');
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}
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if (is_string($uri) && strpos($uri, 'index.php') !== false) {
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list(, $uri) = explode('index.php', $uri, 2);
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}
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if (empty($uri) || $uri == '/' || $uri == '//') {
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return '';
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}
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return str_replace('//', '/', '/' . $uri);
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}
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/**
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* Returns and sets the $_GET[url] derived from the REQUEST_URI
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*
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* @param string $uri Request URI
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* @param string $base Base path
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* @return string URL
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* @access public
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*/
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function getUrl($uri = null, $base = null) {
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if (empty($_GET['url'])) {
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if ($uri == null) {
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$uri = $this->uri();
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}
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if ($base == null) {
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$base = $this->base;
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}
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$url = null;
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$tmpUri = preg_replace('/^(?:\?)?(?:\/)?/', '', $uri);
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$baseDir = preg_replace('/^\//', '', dirname($base)) . '/';
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if ($tmpUri === '/' || $tmpUri == $baseDir || $tmpUri == $base) {
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$url = $_GET['url'] = '/';
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} else {
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if ($base && strpos($uri, $base) !== false) {
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$elements = explode($base, $uri);
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} elseif (preg_match('/^[\/\?\/|\/\?|\?\/]/', $uri)) {
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$elements = array(1 => preg_replace('/^[\/\?\/|\/\?|\?\/]/', '', $uri));
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} else {
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$elements = array();
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}
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if (!empty($elements[1])) {
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$_GET['url'] = $elements[1];
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$url = $elements[1];
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} else {
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$url = $_GET['url'] = '/';
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}
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if (strpos($url, '/') === 0 && $url != '/') {
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$url = $_GET['url'] = substr($url, 1);
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}
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}
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} else {
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$url = $_GET['url'];
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}
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if ($url{0} == '/') {
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$url = substr($url, 1);
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}
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return $url;
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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 $url Requested URL
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* @access public
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*/
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function cached($url) {
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if (Configure::read('Cache.check') === true) {
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$path = $this->here;
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if ($this->here == '/') {
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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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if (!class_exists('View')) {
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App::import('View', 'View', false);
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}
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$controller = null;
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$view =& new View($controller);
|
|
$return = $view->renderCache($filename, getMicrotime());
|
|
if (!$return) {
|
|
ClassRegistry::removeObject('view');
|
|
}
|
|
return $return;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if a requested asset exists and sends it to the browser
|
|
*
|
|
* @param $url string $url Requested URL
|
|
* @return boolean True on success if the asset file was found and sent
|
|
* @access public
|
|
*/
|
|
function asset($url) {
|
|
if (strpos($url, '..') !== false || strpos($url, '.') === false) {
|
|
return false;
|
|
}
|
|
$filters = Configure::read('Asset.filter');
|
|
$isCss = (
|
|
strpos($url, 'ccss/') === 0 ||
|
|
preg_match('#^(theme/([^/]+)/ccss/)|(([^/]+)(?<!css)/ccss)/#i', $url)
|
|
);
|
|
$isJs = (
|
|
strpos($url, 'cjs/') === 0 ||
|
|
preg_match('#^/((theme/[^/]+)/cjs/)|(([^/]+)(?<!js)/cjs)/#i', $url)
|
|
);
|
|
|
|
if (($isCss && empty($filters['css'])) || ($isJs && empty($filters['js']))) {
|
|
header('HTTP/1.1 404 Not Found');
|
|
return $this->_stop();
|
|
} elseif ($isCss) {
|
|
include WWW_ROOT . DS . $filters['css'];
|
|
$this->_stop();
|
|
} elseif ($isJs) {
|
|
include WWW_ROOT . DS . $filters['js'];
|
|
$this->_stop();
|
|
}
|
|
$controller = null;
|
|
$ext = array_pop(explode('.', $url));
|
|
$parts = explode('/', $url);
|
|
$assetFile = null;
|
|
|
|
if ($parts[0] === 'theme') {
|
|
$themeName = $parts[1];
|
|
unset($parts[0], $parts[1]);
|
|
$fileFragment = implode(DS, $parts);
|
|
$path = App::themePath($themeName) . 'webroot' . DS;
|
|
if (file_exists($path . $fileFragment)) {
|
|
$assetFile = $path . $fileFragment;
|
|
}
|
|
} else {
|
|
$plugin = $parts[0];
|
|
unset($parts[0]);
|
|
$fileFragment = implode(DS, $parts);
|
|
$pluginWebroot = App::pluginPath($plugin) . 'webroot' . DS;
|
|
if (file_exists($pluginWebroot . $fileFragment)) {
|
|
$assetFile = $pluginWebroot . $fileFragment;
|
|
}
|
|
}
|
|
|
|
if ($assetFile !== null) {
|
|
$this->_deliverAsset($assetFile, $ext);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sends an asset file to the client
|
|
*
|
|
* @param string $assetFile Path to the asset file in the file system
|
|
* @param string $ext The extension of the file to determine its mime type
|
|
* @return void
|
|
* @access protected
|
|
*/
|
|
function _deliverAsset($assetFile, $ext) {
|
|
$ob = @ini_get("zlib.output_compression") !== '1' && extension_loaded("zlib") && (strpos(env('HTTP_ACCEPT_ENCODING'), 'gzip') !== false);
|
|
$compressionEnabled = $ob && Configure::read('Asset.compress');
|
|
if ($compressionEnabled) {
|
|
ob_start();
|
|
ob_start('ob_gzhandler');
|
|
}
|
|
|
|
App::import('View', 'Media', false);
|
|
$controller = null;
|
|
$Media = new MediaView($controller);
|
|
if (isset($Media->mimeType[$ext])) {
|
|
$contentType = $Media->mimeType[$ext];
|
|
} else {
|
|
$contentType = 'application/octet-stream';
|
|
$agent = env('HTTP_USER_AGENT');
|
|
if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent) || preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) {
|
|
$contentType = 'application/octetstream';
|
|
}
|
|
}
|
|
|
|
header("Date: " . date("D, j M Y G:i:s ", filemtime($assetFile)) . 'GMT');
|
|
header('Content-type: ' . $contentType);
|
|
header("Expires: " . gmdate("D, j M Y H:i:s", time() + DAY) . " GMT");
|
|
header("Cache-Control: cache");
|
|
header("Pragma: cache");
|
|
|
|
if ($ext === 'css' || $ext === 'js') {
|
|
include($assetFile);
|
|
} else {
|
|
if ($compressionEnabled) {
|
|
ob_clean();
|
|
}
|
|
readfile($assetFile);
|
|
}
|
|
|
|
if ($compressionEnabled) {
|
|
ob_end_flush();
|
|
}
|
|
}
|
|
}
|