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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Controller
* @subpackage Zend_Controller_Action_Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Redirector.php 16971 2009-07-22 18:05:45Z mikaelkael $
*/
/**
* @see Zend_Controller_Action_Helper_Abstract
*/
require_once 'Zend/Controller/Action/Helper/Abstract.php';
/**
* @category Zend
* @package Zend_Controller
* @subpackage Zend_Controller_Action_Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Controller_Action_Helper_Redirector extends Zend_Controller_Action_Helper_Abstract
{
/**
* HTTP status code for redirects
* @var int
*/
protected $_code = 302;
/**
* Whether or not calls to _redirect() should exit script execution
* @var boolean
*/
protected $_exit = true;
/**
* Whether or not _redirect() should attempt to prepend the base URL to the
* passed URL (if it's a relative URL)
* @var boolean
*/
protected $_prependBase = true;
/**
* Url to which to redirect
* @var string
*/
protected $_redirectUrl = null;
/**
* Whether or not to use an absolute URI when redirecting
* @var boolean
*/
protected $_useAbsoluteUri = false;
/**
* Whether or not to close the session before exiting
* @var boolean
*/
protected $_closeSessionOnExit = true;
/**
* Retrieve HTTP status code to emit on {@link _redirect()} call
*
* @return int
*/
public function getCode()
{
return $this->_code;
}
/**
* Validate HTTP status redirect code
*
* @param int $code
* @throws Zend_Controller_Action_Exception on invalid HTTP status code
* @return true
*/
protected function _checkCode($code)
{
$code = (int)$code;
if ((300 > $code) || (307 < $code) || (304 == $code) || (306 == $code)) {
require_once 'Zend/Controller/Action/Exception.php';
throw new Zend_Controller_Action_Exception('Invalid redirect HTTP status code (' . $code . ')');
}
return true;
}
/**
* Retrieve HTTP status code for {@link _redirect()} behaviour
*
* @param int $code
* @return Zend_Controller_Action_Helper_Redirector Provides a fluent interface
*/
public function setCode($code)
{
$this->_checkCode($code);
$this->_code = $code;
return $this;
}
/**
* Retrieve flag for whether or not {@link _redirect()} will exit when finished.
*
* @return boolean
*/
public function getExit()
{
return $this->_exit;
}
/**
* Retrieve exit flag for {@link _redirect()} behaviour
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_Redirector Provides a fluent interface
*/
public function setExit($flag)
{
$this->_exit = ($flag) ? true : false;
return $this;
}
/**
* Retrieve flag for whether or not {@link _redirect()} will prepend the
* base URL on relative URLs
*
* @return boolean
*/
public function getPrependBase()
{
return $this->_prependBase;
}
/**
* Retrieve 'prepend base' flag for {@link _redirect()} behaviour
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_Redirector Provides a fluent interface
*/
public function setPrependBase($flag)
{
$this->_prependBase = ($flag) ? true : false;
return $this;
}
/**
* Retrieve flag for whether or not {@link redirectAndExit()} shall close the session before
* exiting.
*
* @return boolean
*/
public function getCloseSessionOnExit()
{
return $this->_closeSessionOnExit;
}
/**
* Set flag for whether or not {@link redirectAndExit()} shall close the session before exiting.
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_Redirector Provides a fluent interface
*/
public function setCloseSessionOnExit($flag)
{
$this->_closeSessionOnExit = ($flag) ? true : false;
return $this;
}
/**
* Return use absolute URI flag
*
* @return boolean
*/
public function getUseAbsoluteUri()
{
return $this->_useAbsoluteUri;
}
/**
* Set use absolute URI flag
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_Redirector Provides a fluent interface
*/
public function setUseAbsoluteUri($flag = true)
{
$this->_useAbsoluteUri = ($flag) ? true : false;
return $this;
}
/**
* Set redirect in response object
*
* @return void
*/
protected function _redirect($url)
{
if ($this->getUseAbsoluteUri() && !preg_match('#^(https?|ftp)://#', $url)) {
$host = (isset($_SERVER['HTTP_HOST'])?$_SERVER['HTTP_HOST']:'');
$proto = (isset($_SERVER['HTTPS'])&&$_SERVER['HTTPS']!=="off") ? 'https' : 'http';
$port = (isset($_SERVER['SERVER_PORT'])?$_SERVER['SERVER_PORT']:80);
$uri = $proto . '://' . $host;
if ((('http' == $proto) && (80 != $port)) || (('https' == $proto) && (443 != $port))) {
$uri .= ':' . $port;
}
$url = $uri . '/' . ltrim($url, '/');
}
$this->_redirectUrl = $url;
$this->getResponse()->setRedirect($url, $this->getCode());
}
/**
* Retrieve currently set URL for redirect
*
* @return string
*/
public function getRedirectUrl()
{
return $this->_redirectUrl;
}
/**
* Determine if the baseUrl should be prepended, and prepend if necessary
*
* @param string $url
* @return string
*/
protected function _prependBase($url)
{
if ($this->getPrependBase()) {
$request = $this->getRequest();
if ($request instanceof Zend_Controller_Request_Http) {
$base = rtrim($request->getBaseUrl(), '/');
if (!empty($base) && ('/' != $base)) {
$url = $base . '/' . ltrim($url, '/');
} else {
$url = '/' . ltrim($url, '/');
}
}
}
return $url;
}
/**
* Set a redirect URL of the form /module/controller/action/params
*
* @param string $action
* @param string $controller
* @param string $module
* @param array $params
* @return void
*/
public function setGotoSimple($action, $controller = null, $module = null, array $params = array())
{
$dispatcher = $this->getFrontController()->getDispatcher();
$request = $this->getRequest();
$curModule = $request->getModuleName();
$useDefaultController = false;
if (null === $controller && null !== $module) {
$useDefaultController = true;
}
if (null === $module) {
$module = $curModule;
}
if ($module == $dispatcher->getDefaultModule()) {
$module = '';
}
if (null === $controller && !$useDefaultController) {
$controller = $request->getControllerName();
if (empty($controller)) {
$controller = $dispatcher->getDefaultControllerName();
}
}
$params['module'] = $module;
$params['controller'] = $controller;
$params['action'] = $action;
$router = $this->getFrontController()->getRouter();
$url = $router->assemble($params, 'default', true);
$this->_redirect($url);
}
/**
* Build a URL based on a route
*
* @param array $urlOptions
* @param string $name Route name
* @param boolean $reset
* @param boolean $encode
* @return void
*/
public function setGotoRoute(array $urlOptions = array(), $name = null, $reset = false, $encode = true)
{
$router = $this->getFrontController()->getRouter();
$url = $router->assemble($urlOptions, $name, $reset, $encode);
$this->_redirect($url);
}
/**
* Set a redirect URL string
*
* By default, emits a 302 HTTP status header, prepends base URL as defined
* in request object if url is relative, and halts script execution by
* calling exit().
*
* $options is an optional associative array that can be used to control
* redirect behaviour. The available option keys are:
* - exit: boolean flag indicating whether or not to halt script execution when done
* - prependBase: boolean flag indicating whether or not to prepend the base URL when a relative URL is provided
* - code: integer HTTP status code to use with redirect. Should be between 300 and 307.
*
* _redirect() sets the Location header in the response object. If you set
* the exit flag to false, you can override this header later in code
* execution.
*
* If the exit flag is true (true by default), _redirect() will write and
* close the current session, if any.
*
* @param string $url
* @param array $options
* @return void
*/
public function setGotoUrl($url, array $options = array())
{
// prevent header injections
$url = str_replace(array("\n", "\r"), '', $url);
if (null !== $options) {
if (isset($options['exit'])) {
$this->setExit(($options['exit']) ? true : false);
}
if (isset($options['prependBase'])) {
$this->setPrependBase(($options['prependBase']) ? true : false);
}
if (isset($options['code'])) {
$this->setCode($options['code']);
}
}
// If relative URL, decide if we should prepend base URL
if (!preg_match('|^[a-z]+://|', $url)) {
$url = $this->_prependBase($url);
}
$this->_redirect($url);
}
/**
* Perform a redirect to an action/controller/module with params
*
* @param string $action
* @param string $controller
* @param string $module
* @param array $params
* @return void
*/
public function gotoSimple($action, $controller = null, $module = null, array $params = array())
{
$this->setGotoSimple($action, $controller, $module, $params);
if ($this->getExit()) {
$this->redirectAndExit();
}
}
/**
* Perform a redirect to an action/controller/module with params, forcing an immdiate exit
*
* @param mixed $action
* @param mixed $controller
* @param mixed $module
* @param array $params
* @return void
*/
public function gotoSimpleAndExit($action, $controller = null, $module = null, array $params = array())
{
$this->setGotoSimple($action, $controller, $module, $params);
$this->redirectAndExit();
}
/**
* Redirect to a route-based URL
*
* Uses route's assemble method tobuild the URL; route is specified by $name;
* default route is used if none provided.
*
* @param array $urlOptions Array of key/value pairs used to assemble URL
* @param string $name
* @param boolean $reset
* @param boolean $encode
* @return void
*/
public function gotoRoute(array $urlOptions = array(), $name = null, $reset = false, $encode = true)
{
$this->setGotoRoute($urlOptions, $name, $reset, $encode);
if ($this->getExit()) {
$this->redirectAndExit();
}
}
/**
* Redirect to a route-based URL, and immediately exit
*
* Uses route's assemble method tobuild the URL; route is specified by $name;
* default route is used if none provided.
*
* @param array $urlOptions Array of key/value pairs used to assemble URL
* @param string $name
* @param boolean $reset
* @return void
*/
public function gotoRouteAndExit(array $urlOptions = array(), $name = null, $reset = false)
{
$this->setGotoRoute($urlOptions, $name, $reset);
$this->redirectAndExit();
}
/**
* Perform a redirect to a url
*
* @param string $url
* @param array $options
* @return void
*/
public function gotoUrl($url, array $options = array())
{
$this->setGotoUrl($url, $options);
if ($this->getExit()) {
$this->redirectAndExit();
}
}
/**
* Set a URL string for a redirect, perform redirect, and immediately exit
*
* @param string $url
* @param array $options
* @return void
*/
public function gotoUrlAndExit($url, array $options = array())
{
$this->gotoUrl($url, $options);
$this->redirectAndExit();
}
/**
* exit(): Perform exit for redirector
*
* @return void
*/
public function redirectAndExit()
{
if ($this->getCloseSessionOnExit()) {
// Close session, if started
if (class_exists('Zend_Session', false) && Zend_Session::isStarted()) {
Zend_Session::writeClose();
} elseif (isset($_SESSION)) {
session_write_close();
}
}
$this->getResponse()->sendHeaders();
exit();
}
/**
* direct(): Perform helper when called as
* $this->_helper->redirector($action, $controller, $module, $params)
*
* @param string $action
* @param string $controller
* @param string $module
* @param array $params
* @return void
*/
public function direct($action, $controller = null, $module = null, array $params = array())
{
$this->gotoSimple($action, $controller, $module, $params);
}
/**
* Overloading
*
* Overloading for old 'goto', 'setGoto', and 'gotoAndExit' methods
*
* @param string $method
* @param array $args
* @return mixed
* @throws Zend_Controller_Action_Exception for invalid methods
*/
public function __call($method, $args)
{
$method = strtolower($method);
if ('goto' == $method) {
return call_user_func_array(array($this, 'gotoSimple'), $args);
}
if ('setgoto' == $method) {
return call_user_func_array(array($this, 'setGotoSimple'), $args);
}
if ('gotoandexit' == $method) {
return call_user_func_array(array($this, 'gotoSimpleAndExit'), $args);
}
require_once 'Zend/Controller/Action/Exception.php';
throw new Zend_Controller_Action_Exception(sprintf('Invalid method "%s" called on redirector', $method));
}
}
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