499 Zeilen
16 KiB
PHP
499 Zeilen
16 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Controller
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* @subpackage Dispatcher
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/** Zend_Loader */
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require_once 'Zend/Loader.php';
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/** Zend_Controller_Dispatcher_Abstract */
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require_once 'Zend/Controller/Dispatcher/Abstract.php';
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/**
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* @category Zend
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* @package Zend_Controller
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* @subpackage Dispatcher
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Controller_Dispatcher_Standard extends Zend_Controller_Dispatcher_Abstract
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{
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/**
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* Current dispatchable directory
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* @var string
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*/
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protected $_curDirectory;
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/**
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* Current module (formatted)
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* @var string
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*/
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protected $_curModule;
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/**
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* Controller directory(ies)
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* @var array
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*/
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protected $_controllerDirectory = array();
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/**
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* Constructor: Set current module to default value
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*
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* @param array $params
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* @return void
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*/
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public function __construct(array $params = array())
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{
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parent::__construct($params);
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$this->_curModule = $this->getDefaultModule();
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}
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/**
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* Add a single path to the controller directory stack
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*
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* @param string $path
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* @param string $module
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* @return Zend_Controller_Dispatcher_Standard
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*/
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public function addControllerDirectory($path, $module = null)
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{
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if (null === $module) {
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$module = $this->_defaultModule;
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}
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$module = (string) $module;
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$path = rtrim((string) $path, '/\\');
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$this->_controllerDirectory[$module] = $path;
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return $this;
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}
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/**
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* Set controller directory
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*
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* @param array|string $directory
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* @return Zend_Controller_Dispatcher_Standard
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*/
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public function setControllerDirectory($directory, $module = null)
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{
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$this->_controllerDirectory = array();
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if (is_string($directory)) {
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$this->addControllerDirectory($directory, $module);
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} elseif (is_array($directory)) {
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foreach ((array) $directory as $module => $path) {
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$this->addControllerDirectory($path, $module);
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}
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} else {
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require_once 'Zend/Controller/Exception.php';
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throw new Zend_Controller_Exception('Controller directory spec must be either a string or an array');
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}
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return $this;
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}
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/**
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* Return the currently set directories for Zend_Controller_Action class
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* lookup
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*
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* If a module is specified, returns just that directory.
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*
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* @param string $module Module name
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* @return array|string Returns array of all directories by default, single
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* module directory if module argument provided
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*/
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public function getControllerDirectory($module = null)
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{
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if (null === $module) {
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return $this->_controllerDirectory;
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}
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$module = (string) $module;
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if (array_key_exists($module, $this->_controllerDirectory)) {
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return $this->_controllerDirectory[$module];
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}
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return null;
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}
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/**
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* Remove a controller directory by module name
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*
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* @param string $module
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* @return bool
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*/
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public function removeControllerDirectory($module)
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{
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$module = (string) $module;
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if (array_key_exists($module, $this->_controllerDirectory)) {
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unset($this->_controllerDirectory[$module]);
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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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* Format the module name.
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*
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* @param string $unformatted
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* @return string
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*/
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public function formatModuleName($unformatted)
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{
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if (($this->_defaultModule == $unformatted) && !$this->getParam('prefixDefaultModule')) {
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return $unformatted;
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}
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return ucfirst($this->_formatName($unformatted));
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}
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/**
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* Format action class name
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*
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* @param string $moduleName Name of the current module
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* @param string $className Name of the action class
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* @return string Formatted class name
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*/
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public function formatClassName($moduleName, $className)
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{
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return $this->formatModuleName($moduleName) . '_' . $className;
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}
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/**
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* Convert a class name to a filename
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*
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* @param string $class
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* @return string
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*/
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public function classToFilename($class)
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{
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return str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
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}
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/**
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* Returns TRUE if the Zend_Controller_Request_Abstract object can be
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* dispatched to a controller.
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*
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* Use this method wisely. By default, the dispatcher will fall back to the
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* default controller (either in the module specified or the global default)
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* if a given controller does not exist. This method returning false does
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* not necessarily indicate the dispatcher will not still dispatch the call.
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*
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* @param Zend_Controller_Request_Abstract $action
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* @return boolean
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*/
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public function isDispatchable(Zend_Controller_Request_Abstract $request)
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{
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$className = $this->getControllerClass($request);
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if (!$className) {
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return false;
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}
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$finalClass = $className;
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if (($this->_defaultModule != $this->_curModule)
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|| $this->getParam('prefixDefaultModule'))
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{
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$finalClass = $this->formatClassName($this->_curModule, $className);
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}
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if (class_exists($finalClass, false)) {
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return true;
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}
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$fileSpec = $this->classToFilename($className);
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$dispatchDir = $this->getDispatchDirectory();
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$test = $dispatchDir . DIRECTORY_SEPARATOR . $fileSpec;
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return Zend_Loader::isReadable($test);
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}
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/**
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* Dispatch to a controller/action
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*
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* By default, if a controller is not dispatchable, dispatch() will throw
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* an exception. If you wish to use the default controller instead, set the
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* param 'useDefaultControllerAlways' via {@link setParam()}.
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*
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* @param Zend_Controller_Request_Abstract $request
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* @param Zend_Controller_Response_Abstract $response
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* @return void
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* @throws Zend_Controller_Dispatcher_Exception
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*/
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public function dispatch(Zend_Controller_Request_Abstract $request, Zend_Controller_Response_Abstract $response)
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{
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$this->setResponse($response);
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/**
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* Get controller class
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*/
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if (!$this->isDispatchable($request)) {
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$controller = $request->getControllerName();
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if (!$this->getParam('useDefaultControllerAlways') && !empty($controller)) {
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require_once 'Zend/Controller/Dispatcher/Exception.php';
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throw new Zend_Controller_Dispatcher_Exception('Invalid controller specified (' . $request->getControllerName() . ')');
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}
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$className = $this->getDefaultControllerClass($request);
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} else {
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$className = $this->getControllerClass($request);
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if (!$className) {
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$className = $this->getDefaultControllerClass($request);
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}
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}
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/**
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* Load the controller class file
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*/
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$className = $this->loadClass($className);
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/**
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* Instantiate controller with request, response, and invocation
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* arguments; throw exception if it's not an action controller
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*/
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$controller = new $className($request, $this->getResponse(), $this->getParams());
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if (!($controller instanceof Zend_Controller_Action_Interface) &&
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!($controller instanceof Zend_Controller_Action)) {
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require_once 'Zend/Controller/Dispatcher/Exception.php';
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throw new Zend_Controller_Dispatcher_Exception(
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'Controller "' . $className . '" is not an instance of Zend_Controller_Action_Interface'
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);
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}
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/**
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* Retrieve the action name
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*/
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$action = $this->getActionMethod($request);
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/**
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* Dispatch the method call
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*/
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$request->setDispatched(true);
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// by default, buffer output
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$disableOb = $this->getParam('disableOutputBuffering');
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$obLevel = ob_get_level();
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if (empty($disableOb)) {
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ob_start();
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}
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try {
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$controller->dispatch($action);
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} catch (Exception $e) {
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// Clean output buffer on error
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$curObLevel = ob_get_level();
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if ($curObLevel > $obLevel) {
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do {
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ob_get_clean();
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$curObLevel = ob_get_level();
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} while ($curObLevel > $obLevel);
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}
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throw $e;
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}
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if (empty($disableOb)) {
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$content = ob_get_clean();
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$response->appendBody($content);
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}
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// Destroy the page controller instance and reflection objects
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$controller = null;
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}
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/**
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* Load a controller class
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*
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* Attempts to load the controller class file from
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* {@link getControllerDirectory()}. If the controller belongs to a
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* module, looks for the module prefix to the controller class.
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*
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* @param string $className
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* @return string Class name loaded
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* @throws Zend_Controller_Dispatcher_Exception if class not loaded
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*/
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public function loadClass($className)
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{
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$finalClass = $className;
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if (($this->_defaultModule != $this->_curModule)
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|| $this->getParam('prefixDefaultModule'))
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{
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$finalClass = $this->formatClassName($this->_curModule, $className);
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}
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if (class_exists($finalClass, false)) {
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return $finalClass;
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}
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$dispatchDir = $this->getDispatchDirectory();
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$loadFile = $dispatchDir . DIRECTORY_SEPARATOR . $this->classToFilename($className);
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if (Zend_Loader::isReadable($loadFile)) {
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include_once $loadFile;
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} else {
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require_once 'Zend/Controller/Dispatcher/Exception.php';
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throw new Zend_Controller_Dispatcher_Exception('Cannot load controller class "' . $className . '" from file "' . $loadFile . "'");
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}
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if (!class_exists($finalClass, false)) {
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require_once 'Zend/Controller/Dispatcher/Exception.php';
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throw new Zend_Controller_Dispatcher_Exception('Invalid controller class ("' . $finalClass . '")');
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}
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return $finalClass;
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}
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/**
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* Get controller class name
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*
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* Try request first; if not found, try pulling from request parameter;
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* if still not found, fallback to default
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*
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* @param Zend_Controller_Request_Abstract $request
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* @return string|false Returns class name on success
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*/
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public function getControllerClass(Zend_Controller_Request_Abstract $request)
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{
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$controllerName = $request->getControllerName();
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if (empty($controllerName)) {
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if (!$this->getParam('useDefaultControllerAlways')) {
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return false;
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}
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$controllerName = $this->getDefaultControllerName();
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$request->setControllerName($controllerName);
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}
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$className = $this->formatControllerName($controllerName);
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$controllerDirs = $this->getControllerDirectory();
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$module = $request->getModuleName();
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if ($this->isValidModule($module)) {
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$this->_curModule = $module;
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$this->_curDirectory = $controllerDirs[$module];
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} elseif ($this->isValidModule($this->_defaultModule)) {
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$request->setModuleName($this->_defaultModule);
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$this->_curModule = $this->_defaultModule;
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$this->_curDirectory = $controllerDirs[$this->_defaultModule];
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} else {
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require_once 'Zend/Controller/Exception.php';
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throw new Zend_Controller_Exception('No default module defined for this application');
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}
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return $className;
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}
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/**
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* Determine if a given module is valid
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*
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* @param string $module
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* @return bool
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*/
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public function isValidModule($module)
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{
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if (!is_string($module)) {
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return false;
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}
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$module = strtolower($module);
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$controllerDir = $this->getControllerDirectory();
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foreach (array_keys($controllerDir) as $moduleName) {
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if ($module == strtolower($moduleName)) {
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return 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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* Retrieve default controller class
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*
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* Determines whether the default controller to use lies within the
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* requested module, or if the global default should be used.
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*
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* By default, will only use the module default unless that controller does
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* not exist; if this is the case, it falls back to the default controller
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* in the default module.
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*
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* @param Zend_Controller_Request_Abstract $request
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* @return string
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*/
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public function getDefaultControllerClass(Zend_Controller_Request_Abstract $request)
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{
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$controller = $this->getDefaultControllerName();
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$default = $this->formatControllerName($controller);
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$request->setControllerName($controller)
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->setActionName(null);
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$module = $request->getModuleName();
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$controllerDirs = $this->getControllerDirectory();
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$this->_curModule = $this->_defaultModule;
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$this->_curDirectory = $controllerDirs[$this->_defaultModule];
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if ($this->isValidModule($module)) {
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$found = false;
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if (class_exists($default, false)) {
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$found = true;
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} else {
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$moduleDir = $controllerDirs[$module];
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$fileSpec = $moduleDir . DIRECTORY_SEPARATOR . $this->classToFilename($default);
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if (Zend_Loader::isReadable($fileSpec)) {
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$found = true;
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$this->_curDirectory = $moduleDir;
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}
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}
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if ($found) {
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$request->setModuleName($module);
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$this->_curModule = $this->formatModuleName($module);
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}
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} else {
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$request->setModuleName($this->_defaultModule);
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}
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return $default;
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}
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/**
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* Return the value of the currently selected dispatch directory (as set by
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* {@link getController()})
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*
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* @return string
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*/
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public function getDispatchDirectory()
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{
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return $this->_curDirectory;
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}
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/**
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* Determine the action name
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*
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* First attempt to retrieve from request; then from request params
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* using action key; default to default action
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*
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* Returns formatted action name
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*
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* @param Zend_Controller_Request_Abstract $request
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* @return string
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*/
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public function getActionMethod(Zend_Controller_Request_Abstract $request)
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{
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$action = $request->getActionName();
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if (empty($action)) {
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$action = $this->getDefaultAction();
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$request->setActionName($action);
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}
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return $this->formatActionName($action);
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}
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}
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