cakephp2-php8/cake/libs/router.php
mark_story 44c080d5ad Making all core classes throw CakeException subclasses, this allows developers to catch framework exceptions with one catch.
Adding package specific exceptions.
Replacing generic exceptions in the codebase with CakeException + package exceptions.
2010-12-11 19:26:10 -05:00

1215 lines
37 KiB
PHP

<?php
/**
* Parses the request URL into controller, action, and parameters.
*
* PHP 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs
* @since CakePHP(tm) v 0.2.9
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::import('Core', 'CakeRequest');
App::import('Core', 'route/CakeRoute');
/**
* Parses the request URL into controller, action, and parameters.
*
* @package cake
* @subpackage cake.cake.libs
*/
class Router {
/**
* Array of routes connected with Router::connect()
*
* @var array
* @access public
*/
public static $routes = array();
/**
* List of action prefixes used in connected routes.
* Includes admin prefix
*
* @var array
* @access private
*/
protected static $_prefixes = array();
/**
* Directive for Router to parse out file extensions for mapping to Content-types.
*
* @var boolean
* @access private
*/
protected static $_parseExtensions = false;
/**
* List of valid extensions to parse from a URL. If null, any extension is allowed.
*
* @var array
* @access private
*/
protected static $_validExtensions = array();
/**
* 'Constant' regular expression definitions for named route elements
*
*/
const ACTION = 'index|show|add|create|edit|update|remove|del|delete|view|item';
const YEAR = '[12][0-9]{3}';
const MONTH = '0[1-9]|1[012]';
const DAY = '0[1-9]|[12][0-9]|3[01]';
const ID = '[0-9]+';
const UUID = '[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}';
private static $__named = array(
'Action' => Router::ACTION,
'Year' => Router::YEAR,
'Month' => Router::MONTH,
'Day' => Router::DAY,
'ID' => Router::ID,
'UUID' => Router::UUID
);
/**
* Stores all information necessary to decide what named arguments are parsed under what conditions.
*
* @var string
* @access public
*/
public static $named = array(
'default' => array('page', 'fields', 'order', 'limit', 'recursive', 'sort', 'direction', 'step'),
'greedy' => true,
'separator' => ':',
'rules' => false,
);
/**
* The route matching the URL of the current request
*
* @var array
* @access private
*/
protected static $_currentRoute = array();
/**
* Default HTTP request method => controller action map.
*
* @var array
* @access private
*/
protected static $_resourceMap = array(
array('action' => 'index', 'method' => 'GET', 'id' => false),
array('action' => 'view', 'method' => 'GET', 'id' => true),
array('action' => 'add', 'method' => 'POST', 'id' => false),
array('action' => 'edit', 'method' => 'PUT', 'id' => true),
array('action' => 'delete', 'method' => 'DELETE', 'id' => true),
array('action' => 'edit', 'method' => 'POST', 'id' => true)
);
/**
* List of resource-mapped controllers
*
* @var array
*/
protected static $_resourceMapped = array();
/**
* Maintains the request object stack for the current request.
* This will contain more than one request object when requestAction is used.
*
* @var array
*/
protected static $_requests = array();
/**
* Keeps Router state to determine if default routes have already been connected
*
* @var boolean
* @access private
*/
protected static $_defaultsMapped = false;
/**
* Keeps track of whether the connection of default routes is enabled or disabled.
*
* @var boolean
*/
protected static $_connectDefaults = true;
/**
* Initial state is popualated the first time reload() is called which is at the bottom
* of this file. This is a cheat as get_class_vars() returns the value of static vars even if they
* have changed.
*
* @var array
*/
protected static $_initialState = array();
/**
* Sets the Routing prefixes.
*
* @return void
* @access private
*/
protected static function _setPrefixes() {
$routing = Configure::read('Routing');
if (!empty($routing['prefixes'])) {
self::$_prefixes = array_merge(self::$_prefixes, (array)$routing['prefixes']);
}
}
/**
* Gets the named route elements for use in app/config/routes.php
*
* @return array Named route elements
* @see Router::$__named
*/
public static function getNamedExpressions() {
return self::$__named;
}
/**
* Connects a new Route in the router.
*
* Routes are a way of connecting request urls to objects in your application. At their core routes
* are a set or regular expressions that are used to match requests to destinations.
*
* Examples:
*
* `Router::connect('/:controller/:action/*');`
*
* The first parameter will be used as a controller name while the second is used as the action name.
* the '/*' syntax makes this route greedy in that it will match requests like `/posts/index` as well as requests
* like `/posts/edit/1/foo/bar`.
*
* `Router::connect('/home-page', array('controller' => 'pages', 'action' => 'display', 'home'));`
*
* The above shows the use of route parameter defaults. And providing routing parameters for a static route.
*
* {{{
* Router::connect(
* '/:lang/:controller/:action/:id',
* array(),
* array('id' => '[0-9]+', 'lang' => '[a-z]{3}')
* );
* }}}
*
* Shows connecting a route with custom route parameters as well as providing patterns for those parameters.
* Patterns for routing parameters do not need capturing groups, as one will be added for each route params.
*
* $options offers two 'special' keys. `pass` and `persist` have special meaning in the $options array.
*
* `pass` is used to define which of the routed parameters should be shifted into the pass array. Adding a
* parameter to pass will remove it from the regular route array. Ex. `'pass' => array('slug')`
*
* `persist` is used to define which route parameters should be automatically included when generating
* new urls. You can override peristent parameters by redifining them in a url or remove them by
* setting the parameter to `false`. Ex. `'persist' => array('lang')`
*
* @param string $route A string describing the template of the route
* @param array $defaults An array describing the default route parameters. These parameters will be used by default
* and can supply routing parameters that are not dynamic. See above.
* @param array $options An array matching the named elements in the route to regular expressions which that
* element should match. Also contains additional parameters such as which routed parameters should be
* shifted into the passed arguments. As well as supplying patterns for routing parameters.
* @see routes
* @return array Array of routes
* @throws RouterException
*/
public static function connect($route, $defaults = array(), $options = array()) {
foreach (self::$_prefixes as $prefix) {
if (isset($defaults[$prefix])) {
$defaults['prefix'] = $prefix;
break;
}
}
if (isset($defaults['prefix'])) {
self::$_prefixes[] = $defaults['prefix'];
self::$_prefixes = array_keys(array_flip(self::$_prefixes));
}
$defaults += array('plugin' => null);
if (empty($options['action'])) {
$defaults += array('action' => 'index');
}
$routeClass = 'CakeRoute';
if (isset($options['routeClass'])) {
$routeClass = $options['routeClass'];
if (!is_subclass_of($routeClass, 'CakeRoute')) {
throw new RouterException(__('Route classes must extend CakeRoute'));
}
unset($options['routeClass']);
}
self::$routes[] = new $routeClass($route, $defaults, $options);
return self::$routes;
}
/**
* Connects a new redirection Route in the router.
*
* Redirection routes are different from normal routes as they perform an actual
* header redirection if a match is found. The redirection can occur within your
* application or redirect to an outside location.
*
* Examples:
*
* `Router::redirect('/home/*', array('controller' => 'posts', 'action' => 'view', array('persist' => true));`
*
* Redirects /home/* to /posts/view and passes the parameters to /posts/view
*
* `Router::redirect('/posts/*', 'http://google.com', array('status' => 302));`
*
* Redirects /posts/* to http://google.com with a HTTP status of 302
*
* ### Options:
* - `status` Sets the HTTP status (default 301)
* - `persist` Passes the params to the redirected route, if it can
*
* @param string $route A string describing the template of the route
* @param array $url A url to redirect to. Can be a string or a Cake array-based url
* @param array $options An array matching the named elements in the route to regular expressions which that
* element should match. Also contains additional parameters such as which routed parameters should be
* shifted into the passed arguments. As well as supplying patterns for routing parameters.
* @see routes
* @return array Array of routes
*/
public static function redirect($route, $url, $options) {
App::import('Core', 'route/RedirectRoute');
$options['routeClass'] = 'RedirectRoute';
return self::connect($route, $url, $options);
}
/**
* Specifies what named parameters CakePHP should be parsing. The most common setups are:
*
* Do not parse any named parameters:
*
* {{{ Router::connectNamed(false); }}}
*
* Parse only default parameters used for CakePHP's pagination:
*
* {{{ Router::connectNamed(false, array('default' => true)); }}}
*
* Parse only the page parameter if its value is a number:
*
* {{{ Router::connectNamed(array('page' => '[\d]+'), array('default' => false, 'greedy' => false)); }}}
*
* Parse only the page parameter no mater what.
*
* {{{ Router::connectNamed(array('page'), array('default' => false, 'greedy' => false)); }}}
*
* Parse only the page parameter if the current action is 'index'.
*
* {{{
* Router::connectNamed(
* array('page' => array('action' => 'index')),
* array('default' => false, 'greedy' => false)
* );
* }}}
*
* Parse only the page parameter if the current action is 'index' and the controller is 'pages'.
*
* {{{
* Router::connectNamed(
* array('page' => array('action' => 'index', 'controller' => 'pages')),
* array('default' => false, 'greedy' => false)
* );
* }}}
*
* @param array $named A list of named parameters. Key value pairs are accepted where values are
* either regex strings to match, or arrays as seen above.
* @param array $options Allows to control all settings: separator, greedy, reset, default
* @return array
*/
public static function connectNamed($named, $options = array()) {
if (isset($options['argSeparator'])) {
self::$named['separator'] = $options['argSeparator'];
unset($options['argSeparator']);
}
if ($named === true || $named === false) {
$options = array_merge(array('default' => $named, 'reset' => true, 'greedy' => $named), $options);
$named = array();
} else {
$options = array_merge(array('default' => false, 'reset' => false, 'greedy' => true), $options);
}
if ($options['reset'] == true || self::$named['rules'] === false) {
self::$named['rules'] = array();
}
if ($options['default']) {
$named = array_merge($named, self::$named['default']);
}
foreach ($named as $key => $val) {
if (is_numeric($key)) {
self::$named['rules'][$val] = true;
} else {
self::$named['rules'][$key] = $val;
}
}
self::$named['greedy'] = $options['greedy'];
return self::$named;
}
/**
* Tell router to connect or not connect the default routes.
*
* If default routes are disabled all automatic route generation will be disabled
* and you will need to manually configure all the routes you want.
*
* @param boolean $connect Set to true or false depending on whether you want or don't want default routes.
* @return void
*/
public static function defaults($connect = true) {
self::$_connectDefaults = $connect;
}
/**
* Creates REST resource routes for the given controller(s)
*
* ### Options:
*
* - 'id' - The regular expression fragment to use when matching IDs. By default, matches
* integer values and UUIDs.
* - 'prefix' - URL prefix to use for the generated routes. Defaults to '/'.
*
* @param mixed $controller A controller name or array of controller names (i.e. "Posts" or "ListItems")
* @param array $options Options to use when generating REST routes
* @return array Array of mapped resources
*/
public static function mapResources($controller, $options = array()) {
$options = array_merge(array('prefix' => '/', 'id' => self::$__named['ID'] . '|' . self::$__named['UUID']), $options);
$prefix = $options['prefix'];
foreach ((array)$controller as $ctlName) {
$urlName = Inflector::underscore($ctlName);
foreach (self::$_resourceMap as $params) {
extract($params);
$url = $prefix . $urlName . (($id) ? '/:id' : '');
Router::connect($url,
array('controller' => $urlName, 'action' => $action, '[method]' => $params['method']),
array('id' => $options['id'], 'pass' => array('id'))
);
}
self::$_resourceMapped[] = $urlName;
}
return self::$_resourceMapped;
}
/**
* Returns the list of prefixes used in connected routes
*
* @return array A list of prefixes used in connected routes
*/
public static function prefixes() {
return self::$_prefixes;
}
/**
* Parses given URL string. Returns 'routing' parametets for that url.
*
* @param string $url URL to be parsed
* @return array Parsed elements from URL
*/
public static function parse($url) {
if (!self::$_defaultsMapped && self::$_connectDefaults) {
self::__connectDefaultRoutes();
}
$out = array(
'pass' => array(),
'named' => array()
);
$r = $ext = null;
if ($url && strpos($url, '/') !== 0) {
$url = '/' . $url;
}
if (strpos($url, '?') !== false) {
$url = substr($url, 0, strpos($url, '?'));
}
extract(self::__parseExtension($url));
for ($i = 0, $len = count(self::$routes); $i < $len; $i++) {
$route =& self::$routes[$i];
if (($r = $route->parse($url)) !== false) {
self::$_currentRoute[] =& $route;
$params = $route->options;
$argOptions = array();
if (array_key_exists('named', $params)) {
$argOptions['named'] = $params['named'];
unset($params['named']);
}
if (array_key_exists('greedy', $params)) {
$argOptions['greedy'] = $params['greedy'];
unset($params['greedy']);
}
$out = $r;
if (isset($out['_args_'])) {
$argOptions['context'] = array('action' => $out['action'], 'controller' => $out['controller']);
$parsedArgs = self::getArgs($out['_args_'], $argOptions);
$out['pass'] = array_merge($out['pass'], $parsedArgs['pass']);
$out['named'] = $parsedArgs['named'];
unset($out['_args_']);
}
if (isset($params['pass'])) {
$j = count($params['pass']);
while($j--) {
if (isset($out[$params['pass'][$j]])) {
array_unshift($out['pass'], $out[$params['pass'][$j]]);
}
}
}
break;
}
}
if (!empty($ext) && !isset($out['url']['ext'])) {
$out['url']['ext'] = $ext;
}
return $out;
}
/**
* Parses a file extension out of a URL, if Router::parseExtensions() is enabled.
*
* @param string $url
* @return array Returns an array containing the altered URL and the parsed extension.
* @access private
*/
private static function __parseExtension($url) {
$ext = null;
if (self::$_parseExtensions) {
if (preg_match('/\.[0-9a-zA-Z]*$/', $url, $match) === 1) {
$match = substr($match[0], 1);
if (empty(self::$_validExtensions)) {
$url = substr($url, 0, strpos($url, '.' . $match));
$ext = $match;
} else {
foreach (self::$_validExtensions as $name) {
if (strcasecmp($name, $match) === 0) {
$url = substr($url, 0, strpos($url, '.' . $name));
$ext = $match;
break;
}
}
}
}
if (empty($ext)) {
$ext = 'html';
}
}
return compact('ext', 'url');
}
/**
* Connects the default, built-in routes, including prefix and plugin routes. The following routes are created
* in the order below:
*
* For each of the Routing.prefixes the following routes are created. Routes containing `:plugin` are only
* created when your application has one or more plugins.
*
* - `/:prefix/:plugin` a plugin shortcut route.
* - `/:prefix/:plugin/:action/*` a plugin shortcut route.
* - `/:prefix/:plugin/:controller`
* - `/:prefix/:plugin/:controller/:action/*`
* - `/:prefix/:controller`
* - `/:prefix/:controller/:action/*`
*
* If plugins are found in your application the following routes are created:
*
* - `/:plugin` a plugin shortcut route.
* - `/:plugin/:action/*` a plugin shortcut route.
* - `/:plugin/:controller`
* - `/:plugin/:controller/:action/*`
*
* And lastly the following catch-all routes are connected.
*
* - `/:controller'
* - `/:controller/:action/*'
*
* You can disable the connection of default routes with Router::defaults().
*
* @return void
* @access private
*/
private static function __connectDefaultRoutes() {
if ($plugins = App::objects('plugin')) {
App::import('Core', 'route/PluginShortRoute');
foreach ($plugins as $key => $value) {
$plugins[$key] = Inflector::underscore($value);
}
$pluginPattern = implode('|', $plugins);
$match = array('plugin' => $pluginPattern);
$shortParams = array('routeClass' => 'PluginShortRoute', 'plugin' => $pluginPattern);
foreach (self::$_prefixes as $prefix) {
$params = array('prefix' => $prefix, $prefix => true);
$indexParams = $params + array('action' => 'index');
self::connect("/{$prefix}/:plugin", $indexParams, $shortParams);
self::connect("/{$prefix}/:plugin/:controller", $indexParams, $match);
self::connect("/{$prefix}/:plugin/:controller/:action/*", $params, $match);
}
self::connect('/:plugin', array('action' => 'index'), $shortParams);
self::connect('/:plugin/:controller', array('action' => 'index'), $match);
self::connect('/:plugin/:controller/:action/*', array(), $match);
}
foreach (self::$_prefixes as $prefix) {
$params = array('prefix' => $prefix, $prefix => true);
$indexParams = $params + array('action' => 'index');
self::connect("/{$prefix}/:controller", $indexParams);
self::connect("/{$prefix}/:controller/:action/*", $params);
}
self::connect('/:controller', array('action' => 'index'));
self::connect('/:controller/:action/*');
if (self::$named['rules'] === false) {
self::connectNamed(true);
}
self::$_defaultsMapped = true;
}
/**
* Takes parameter and path information back from the Dispatcher, sets these
* parameters as the current request parameters that are merged with url arrays
* created later in the request.
*
* Will accept either a CakeRequest object or an array of arrays. Support for
* accepting arrays may be removed in the future.
*
* @param mixed $params Parameters and path information or a CakeRequest object.
* @return void
*/
public static function setRequestInfo($request) {
if ($request instanceof CakeRequest) {
self::$_requests[] = $request;
} else {
$requestObj = new CakeRequest();
$request += array(array(), array());
$request[0] += array('controller' => false, 'action' => false, 'plugin' => null);
$requestObj->addParams($request[0])->addPaths($request[1]);
self::$_requests[] = $requestObj;
}
}
/**
* Get the either the current request object, or the first one.
*
* @param boolean $current Whether you want the request from the top of the stack or the first one.
* @return CakeRequest or null.
*/
public static function getRequest($current = false) {
if ($current) {
return self::$_requests[count(self::$_requests) - 1];
}
return isset(self::$_requests[0]) ? self::$_requests[0] : null;
}
/**
* Gets parameter information
*
* @param boolean $current Get current request parameter, useful when using requestAction
* @return array Parameter information
*/
public static function getParams($current = false) {
if ($current) {
return self::$_requests[count(self::$_requests) - 1]->params;
}
if (isset(self::$_requests[0])) {
return self::$_requests[0]->params;
}
return array();
}
/**
* Gets URL parameter by name
*
* @param string $name Parameter name
* @param boolean $current Current parameter, useful when using requestAction
* @return string Parameter value
*/
public static function getParam($name = 'controller', $current = false) {
$params = Router::getParams($current);
if (isset($params[$name])) {
return $params[$name];
}
return null;
}
/**
* Gets path information
*
* @param boolean $current Current parameter, useful when using requestAction
* @return array
*/
public static function getPaths($current = false) {
if ($current) {
return self::$_requests[count(self::$_requests) - 1];
}
if (!isset(self::$_requests[0])) {
return array('base' => null);
}
return array('base' => self::$_requests[0]->base);
}
/**
* Reloads default Router settings. Resets all class variables and
* removes all connected routes.
*
* @return void
*/
public static function reload() {
if (empty(self::$_initialState)) {
self::$_initialState = get_class_vars('Router');
return;
}
foreach (self::$_initialState as $key => $val) {
if ($key != '_initialState') {
self::${$key} = $val;
}
}
self::_setPrefixes();
}
/**
* Promote a route (by default, the last one added) to the beginning of the list
*
* @param $which A zero-based array index representing the route to move. For example,
* if 3 routes have been added, the last route would be 2.
* @return boolean Retuns false if no route exists at the position specified by $which.
*/
public static function promote($which = null) {
if ($which === null) {
$which = count(self::$routes) - 1;
}
if (!isset(self::$routes[$which])) {
return false;
}
$route =& self::$routes[$which];
unset(self::$routes[$which]);
array_unshift(self::$routes, $route);
return true;
}
/**
* Finds URL for specified action.
*
* Returns an URL pointing to a combination of controller and action. Param
* $url can be:
*
* - Empty - the method will find address to actuall controller/action.
* - '/' - the method will find base URL of application.
* - A combination of controller/action - the method will find url for it.
*
* There are a few 'special' parameters that can change the final URL string that is generated
*
* - `base` - Set to false to remove the base path from the generated url. If your application
* is not in the root directory, this can be used to generate urls that are 'cake relative'.
* cake relative urls are required when using requestAction.
* - `?` - Takes an array of query string parameters
* - `#` - Allows you to set url hash fragments.
* - `full_base` - If true the `FULL_BASE_URL` constant will be prepended to generated urls.
*
* @param mixed $url Cake-relative URL, like "/products/edit/92" or "/presidents/elect/4"
* or an array specifying any of the following: 'controller', 'action',
* and/or 'plugin', in addition to named arguments (keyed array elements),
* and standard URL arguments (indexed array elements)
* @param mixed $full If (bool) true, the full base URL will be prepended to the result.
* If an array accepts the following keys
* - escape - used when making urls embedded in html escapes query string '&'
* - full - if true the full base URL will be prepended.
* @return string Full translated URL with base path.
*/
public static function url($url = null, $full = false) {
$defaults = $params = array('plugin' => null, 'controller' => null, 'action' => 'index');
if (is_bool($full)) {
$escape = false;
} else {
extract($full + array('escape' => false, 'full' => false));
}
$path = array('base' => null);
if (!empty(self::$_requests)) {
$currentRequest = self::$_requests[count(self::$_requests) - 1];
if (!empty($currentRequest->params['requested'])) {
$request = self::$_requests[0];
} else {
$request = $currentRequest;
}
$params = $request->params;
$path = array('base' => $request->base, 'here' => $request->here);
}
$base = $path['base'];
$extension = $output = $mapped = $q = $frag = null;
if (empty($url)) {
$output = isset($path['here']) ? $path['here'] : '/';
if ($full && defined('FULL_BASE_URL')) {
$output = FULL_BASE_URL . $output;
}
return $output;
} elseif (is_array($url)) {
if (isset($url['base']) && $url['base'] === false) {
$base = null;
unset($url['base']);
}
if (isset($url['full_base']) && $url['full_base'] === true) {
$full = true;
unset($url['full_base']);
}
if (isset($url['?'])) {
$q = $url['?'];
unset($url['?']);
}
if (isset($url['#'])) {
$frag = '#' . urlencode($url['#']);
unset($url['#']);
}
if (isset($url['ext'])) {
$extension = '.' . $url['ext'];
unset($url['ext']);
}
if (empty($url['action'])) {
if (empty($url['controller']) || $params['controller'] === $url['controller']) {
$url['action'] = $params['action'];
} else {
$url['action'] = 'index';
}
}
$prefixExists = (array_intersect_key($url, array_flip(self::$_prefixes)));
foreach (self::$_prefixes as $prefix) {
if (!empty($params[$prefix]) && !$prefixExists) {
$url[$prefix] = true;
} elseif (isset($url[$prefix]) && !$url[$prefix]) {
unset($url[$prefix]);
}
if (isset($url[$prefix]) && strpos($url['action'], $prefix) === 0) {
$url['action'] = substr($url['action'], strlen($prefix) + 1);
}
}
$url += array('controller' => $params['controller'], 'plugin' => $params['plugin']);
$match = false;
for ($i = 0, $len = count(self::$routes); $i < $len; $i++) {
$originalUrl = $url;
if (isset(self::$routes[$i]->options['persist'], $params)) {
$url = self::$routes[$i]->persistParams($url, $params);
}
if ($match = self::$routes[$i]->match($url)) {
$output = trim($match, '/');
break;
}
$url = $originalUrl;
}
if ($match === false) {
$output = self::_handleNoRoute($url);
}
} else {
if (
(strpos($url, '://') ||
(strpos($url, 'javascript:') === 0) ||
(strpos($url, 'mailto:') === 0)) ||
(!strncmp($url, '#', 1))
) {
return $url;
}
if (substr($url, 0, 1) === '/') {
$output = substr($url, 1);
} else {
foreach (self::$_prefixes as $prefix) {
if (isset($params[$prefix])) {
$output .= $prefix . '/';
break;
}
}
if (!empty($params['plugin']) && $params['plugin'] !== $params['controller']) {
$output .= Inflector::underscore($params['plugin']) . '/';
}
$output .= Inflector::underscore($params['controller']) . '/' . $url;
}
}
$protocol = preg_match('#^[a-z][a-z0-9+-.]*\://#i', $output);
if ($protocol === 0) {
$output = str_replace('//', '/', $base . '/' . $output);
if ($full && defined('FULL_BASE_URL')) {
$output = FULL_BASE_URL . $output;
}
if (!empty($extension)) {
$output = rtrim($output, '/');
}
}
return $output . $extension . self::queryString($q, array(), $escape) . $frag;
}
/**
* A special fallback method that handles url arrays that cannot match
* any defined routes.
*
* @param array $url A url that didn't match any routes
* @return string A generated url for the array
* @see Router::url()
*/
protected static function _handleNoRoute($url) {
$named = $args = array();
$skip = array_merge(
array('bare', 'action', 'controller', 'plugin', 'prefix'),
self::$_prefixes
);
$keys = array_values(array_diff(array_keys($url), $skip));
$count = count($keys);
// Remove this once parsed URL parameters can be inserted into 'pass'
for ($i = 0; $i < $count; $i++) {
if (is_numeric($keys[$i])) {
$args[] = $url[$keys[$i]];
} else {
$named[$keys[$i]] = $url[$keys[$i]];
}
}
list($args, $named) = array(Set::filter($args, true), Set::filter($named, true));
foreach (self::$_prefixes as $prefix) {
if (!empty($url[$prefix])) {
$url['action'] = str_replace($prefix . '_', '', $url['action']);
break;
}
}
if (empty($named) && empty($args) && (!isset($url['action']) || $url['action'] === 'index')) {
$url['action'] = null;
}
$urlOut = array_filter(array($url['controller'], $url['action']));
if (isset($url['plugin'])) {
array_unshift($urlOut, $url['plugin']);
}
foreach (self::$_prefixes as $prefix) {
if (isset($url[$prefix])) {
array_unshift($urlOut, $prefix);
break;
}
}
$output = implode('/', $urlOut);
if (!empty($args)) {
$output .= '/' . implode('/', $args);
}
if (!empty($named)) {
foreach ($named as $name => $value) {
$output .= '/' . $name . self::$named['separator'] . $value;
}
}
return $output;
}
/**
* Takes an array of URL parameters and separates the ones that can be used as named arguments
*
* @param array $params Associative array of URL parameters.
* @param string $controller Name of controller being routed. Used in scoping.
* @param string $action Name of action being routed. Used in scoping.
* @return array
*/
public static function getNamedElements($params, $controller = null, $action = null) {
$named = array();
foreach ($params as $param => $val) {
if (isset(self::$named['rules'][$param])) {
$rule = self::$named['rules'][$param];
if (Router::matchNamed($param, $val, $rule, compact('controller', 'action'))) {
$named[$param] = $val;
unset($params[$param]);
}
}
}
return array($named, $params);
}
/**
* Return true if a given named $param's $val matches a given $rule depending on $context. Currently implemented
* rule types are controller, action and match that can be combined with each other.
*
* @param string $param The name of the named parameter
* @param string $val The value of the named parameter
* @param array $rule The rule(s) to apply, can also be a match string
* @param string $context An array with additional context information (controller / action)
* @return boolean
*/
public static function matchNamed($param, $val, $rule, $context = array()) {
if ($rule === true || $rule === false) {
return $rule;
}
if (is_string($rule)) {
$rule = array('match' => $rule);
}
if (!is_array($rule)) {
return false;
}
$controllerMatches = !isset($rule['controller'], $context['controller']) || in_array($context['controller'], (array)$rule['controller']);
if (!$controllerMatches) {
return false;
}
$actionMatches = !isset($rule['action'], $context['action']) || in_array($context['action'], (array)$rule['action']);
if (!$actionMatches) {
return false;
}
return (!isset($rule['match']) || preg_match('/' . $rule['match'] . '/', $val));
}
/**
* Generates a well-formed querystring from $q
*
* @param mixed $q Query string Either a string of already compiled query string arguments or
* an array of arguments to convert into a query string.
* @param array $extra Extra querystring parameters.
* @param bool $escape Whether or not to use escaped &
* @return array
*/
public static function queryString($q, $extra = array(), $escape = false) {
if (empty($q) && empty($extra)) {
return null;
}
$join = '&';
if ($escape === true) {
$join = '&amp;';
}
$out = '';
if (is_array($q)) {
$q = array_merge($extra, $q);
} else {
$out = $q;
$q = $extra;
}
$out .= http_build_query($q, null, $join);
if (isset($out[0]) && $out[0] != '?') {
$out = '?' . $out;
}
return $out;
}
/**
* Reverses a parsed parameter array into a string. Works similarily to Router::url(), but
* Since parsed URL's contain additional 'pass' and 'named' as well as 'url.url' keys.
* Those keys need to be specially handled in order to reverse a params array into a string url.
*
* This will strip out 'autoRender', 'bare', 'requested', and 'return' param names as those
* are used for CakePHP internals and should not normally be part of an output url.
*
* @param mixed $param The params array or CakeRequest object that needs to be reversed.
* @return string The string that is the reversed result of the array
*/
public static function reverse($params) {
if ($params instanceof CakeRequest) {
$params = $params->params;
}
$pass = $params['pass'];
$named = $params['named'];
$url = $params['url'];
unset(
$params['pass'], $params['named'], $params['paging'], $params['models'], $params['url'], $url['url'],
$params['autoRender'], $params['bare'], $params['requested'], $params['return']
);
$params = array_merge($params, $pass, $named);
if (!empty($url)) {
$params['?'] = $url;
}
return Router::url($params);
}
/**
* Normalizes a URL for purposes of comparison. Will strip the base path off
* and replace any double /'s. It will not unify the casing and underscoring
* of the input value.
*
* @param mixed $url URL to normalize Either an array or a string url.
* @return string Normalized URL
*/
public static function normalize($url = '/') {
if (is_array($url)) {
$url = Router::url($url);
} elseif (preg_match('/^[a-z\-]+:\/\//', $url)) {
return $url;
}
$request = Router::getRequest();
if (!empty($request->base) && stristr($url, $request->base)) {
$url = preg_replace('/^' . preg_quote($request->base, '/') . '/', '', $url, 1);
}
$url = '/' . $url;
while (strpos($url, '//') !== false) {
$url = str_replace('//', '/', $url);
}
$url = preg_replace('/(?:(\/$))/', '', $url);
if (empty($url)) {
return '/';
}
return $url;
}
/**
* Returns the route matching the current request URL.
*
* @return CakeRoute Matching route object.
*/
public static function &requestRoute() {
return self::$_currentRoute[0];
}
/**
* Returns the route matching the current request (useful for requestAction traces)
*
* @return CakeRoute Matching route object.
*/
public static function &currentRoute() {
return self::$_currentRoute[count(self::$_currentRoute) - 1];
}
/**
* Removes the plugin name from the base URL.
*
* @param string $base Base URL
* @param string $plugin Plugin name
* @return base url with plugin name removed if present
*/
public static function stripPlugin($base, $plugin = null) {
if ($plugin != null) {
$base = preg_replace('/(?:' . $plugin . ')/', '', $base);
$base = str_replace('//', '', $base);
$pos1 = strrpos($base, '/');
$char = strlen($base) - 1;
if ($pos1 === $char) {
$base = substr($base, 0, $char);
}
}
return $base;
}
/**
* Instructs the router to parse out file extensions from the URL. For example,
* http://example.com/posts.rss would yield an file extension of "rss".
* The file extension itself is made available in the controller as
* $this->params['url']['ext'], and is used by the RequestHandler component to
* automatically switch to alternate layouts and templates, and load helpers
* corresponding to the given content, i.e. RssHelper.
*
* A list of valid extension can be passed to this method, i.e. Router::parseExtensions('rss', 'xml');
* If no parameters are given, anything after the first . (dot) after the last / in the URL will be
* parsed, excluding querystring parameters (i.e. ?q=...).
*
* @return void
*/
public static function parseExtensions() {
self::$_parseExtensions = true;
if (func_num_args() > 0) {
self::$_validExtensions = func_get_args();
}
}
/**
* Get the list of extensions that can be parsed by Router. To add more
* extensions use Router::parseExtensions()
*
* @return array Array of extensions Router is configured to parse.
*/
public static function extensions() {
return self::$_validExtensions;
}
/**
* Takes an passed params and converts it to args
*
* @param array $params
* @return array Array containing passed and named parameters
*/
public static function getArgs($args, $options = array()) {
$pass = $named = array();
$args = explode('/', $args);
$greedy = isset($options['greedy']) ? $options['greedy'] : self::$named['greedy'];
$context = array();
if (isset($options['context'])) {
$context = $options['context'];
}
$rules = self::$named['rules'];
if (isset($options['named'])) {
$greedy = isset($options['greedy']) && $options['greedy'] === true;
foreach ((array)$options['named'] as $key => $val) {
if (is_numeric($key)) {
$rules[$val] = true;
continue;
}
$rules[$key] = $val;
}
}
foreach ($args as $param) {
if (empty($param) && $param !== '0' && $param !== 0) {
continue;
}
$separatorIsPresent = strpos($param, self::$named['separator']) !== false;
if ((!isset($options['named']) || !empty($options['named'])) && $separatorIsPresent) {
list($key, $val) = explode(self::$named['separator'], $param, 2);
$hasRule = isset($rules[$key]);
$passIt = (!$hasRule && !$greedy) || ($hasRule && !self::matchNamed($key, $val, $rules[$key], $context));
if ($passIt) {
$pass[] = $param;
} else {
$named[$key] = $val;
}
} else {
$pass[] = $param;
}
}
return compact('pass', 'named');
}
}
//Save the initial state
Router::reload();