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anikendra |
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<?php
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/**
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @since CakePHP(tm) v 1.3
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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App::uses('Hash', 'Utility');
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/**
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* A single Route used by the Router to connect requests to
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* parameter maps.
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*
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* Not normally created as a standalone. Use Router::connect() to create
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* Routes for your application.
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*
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* @package Cake.Routing.Route
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*/
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class CakeRoute {
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/**
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* An array of named segments in a Route.
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* `/:controller/:action/:id` has 3 key elements
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*
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* @var array
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*/
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public $keys = array();
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/**
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* An array of additional parameters for the Route.
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*
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* @var array
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*/
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public $options = array();
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/**
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* Default parameters for a Route
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*
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* @var array
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*/
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public $defaults = array();
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/**
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* The routes template string.
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*
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* @var string
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*/
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public $template = null;
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/**
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* Is this route a greedy route? Greedy routes have a `/*` in their
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* template
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*
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* @var string
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*/
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protected $_greedy = false;
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/**
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* The compiled route regular expression
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*
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* @var string
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*/
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protected $_compiledRoute = null;
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/**
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* HTTP header shortcut map. Used for evaluating header-based route expressions.
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*
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* @var array
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*/
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protected $_headerMap = array(
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'type' => 'content_type',
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'method' => 'request_method',
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'server' => 'server_name'
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);
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/**
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* Constructor for a Route
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*
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* @param string $template Template string with parameter placeholders
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* @param array $defaults Array of defaults for the route.
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* @param array $options Array of additional options for the Route
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*/
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public function __construct($template, $defaults = array(), $options = array()) {
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$this->template = $template;
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$this->defaults = (array)$defaults;
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$this->options = (array)$options;
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}
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/**
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* Check if a Route has been compiled into a regular expression.
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*
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* @return bool
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*/
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public function compiled() {
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return !empty($this->_compiledRoute);
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}
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/**
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* Compiles the route's regular expression.
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*
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* Modifies defaults property so all necessary keys are set
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* and populates $this->names with the named routing elements.
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*
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* @return array Returns a string regular expression of the compiled route.
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*/
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public function compile() {
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if ($this->compiled()) {
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return $this->_compiledRoute;
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}
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$this->_writeRoute();
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return $this->_compiledRoute;
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}
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/**
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* Builds a route regular expression.
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*
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* Uses the template, defaults and options properties to compile a
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* regular expression that can be used to parse request strings.
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*
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* @return void
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*/
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protected function _writeRoute() {
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if (empty($this->template) || ($this->template === '/')) {
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$this->_compiledRoute = '#^/*$#';
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$this->keys = array();
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return;
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}
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$route = $this->template;
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$names = $routeParams = array();
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$parsed = preg_quote($this->template, '#');
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preg_match_all('#:([A-Za-z0-9_-]+[A-Z0-9a-z])#', $route, $namedElements);
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foreach ($namedElements[1] as $i => $name) {
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$search = '\\' . $namedElements[0][$i];
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if (isset($this->options[$name])) {
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$option = null;
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if ($name !== 'plugin' && array_key_exists($name, $this->defaults)) {
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$option = '?';
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}
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$slashParam = '/\\' . $namedElements[0][$i];
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if (strpos($parsed, $slashParam) !== false) {
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$routeParams[$slashParam] = '(?:/(?P<' . $name . '>' . $this->options[$name] . ')' . $option . ')' . $option;
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} else {
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$routeParams[$search] = '(?:(?P<' . $name . '>' . $this->options[$name] . ')' . $option . ')' . $option;
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}
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} else {
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$routeParams[$search] = '(?:(?P<' . $name . '>[^/]+))';
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}
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$names[] = $name;
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}
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if (preg_match('#\/\*\*$#', $route)) {
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$parsed = preg_replace('#/\\\\\*\\\\\*$#', '(?:/(?P<_trailing_>.*))?', $parsed);
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$this->_greedy = true;
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}
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if (preg_match('#\/\*$#', $route)) {
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$parsed = preg_replace('#/\\\\\*$#', '(?:/(?P<_args_>.*))?', $parsed);
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$this->_greedy = true;
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}
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krsort($routeParams);
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$parsed = str_replace(array_keys($routeParams), array_values($routeParams), $parsed);
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$this->_compiledRoute = '#^' . $parsed . '[/]*$#';
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$this->keys = $names;
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// Remove defaults that are also keys. They can cause match failures
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foreach ($this->keys as $key) {
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unset($this->defaults[$key]);
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}
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$keys = $this->keys;
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sort($keys);
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$this->keys = array_reverse($keys);
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}
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/**
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* Checks to see if the given URL can be parsed by this route.
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*
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* If the route can be parsed an array of parameters will be returned; if not
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* false will be returned. String URLs are parsed if they match a routes regular expression.
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*
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* @param string $url The URL to attempt to parse.
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* @return mixed Boolean false on failure, otherwise an array or parameters
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*/
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public function parse($url) {
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if (!$this->compiled()) {
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$this->compile();
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}
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if (!preg_match($this->_compiledRoute, urldecode($url), $route)) {
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return false;
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}
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foreach ($this->defaults as $key => $val) {
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$key = (string)$key;
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if ($key[0] === '[' && preg_match('/^\[(\w+)\]$/', $key, $header)) {
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if (isset($this->_headerMap[$header[1]])) {
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$header = $this->_headerMap[$header[1]];
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} else {
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$header = 'http_' . $header[1];
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}
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$header = strtoupper($header);
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$val = (array)$val;
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$h = false;
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foreach ($val as $v) {
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if (env($header) === $v) {
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$h = true;
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}
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}
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if (!$h) {
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return false;
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}
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}
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}
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array_shift($route);
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$count = count($this->keys);
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for ($i = 0; $i <= $count; $i++) {
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unset($route[$i]);
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}
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$route['pass'] = $route['named'] = array();
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// Assign defaults, set passed args to pass
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foreach ($this->defaults as $key => $value) {
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if (isset($route[$key])) {
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continue;
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}
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if (is_int($key)) {
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$route['pass'][] = $value;
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continue;
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}
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$route[$key] = $value;
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}
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if (isset($route['_args_'])) {
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list($pass, $named) = $this->_parseArgs($route['_args_'], $route);
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$route['pass'] = array_merge($route['pass'], $pass);
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$route['named'] = $named;
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unset($route['_args_']);
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}
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if (isset($route['_trailing_'])) {
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$route['pass'][] = $route['_trailing_'];
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unset($route['_trailing_']);
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}
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// restructure 'pass' key route params
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if (isset($this->options['pass'])) {
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$j = count($this->options['pass']);
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while ($j--) {
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if (isset($route[$this->options['pass'][$j]])) {
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array_unshift($route['pass'], $route[$this->options['pass'][$j]]);
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}
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}
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}
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return $route;
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}
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/**
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* Parse passed and Named parameters into a list of passed args, and a hash of named parameters.
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* The local and global configuration for named parameters will be used.
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*
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* @param string $args A string with the passed & named params. eg. /1/page:2
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* @param string $context The current route context, which should contain controller/action keys.
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* @return array Array of ($pass, $named)
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*/
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protected function _parseArgs($args, $context) {
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$pass = $named = array();
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$args = explode('/', $args);
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$namedConfig = Router::namedConfig();
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$greedy = $namedConfig['greedyNamed'];
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$rules = $namedConfig['rules'];
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if (!empty($this->options['named'])) {
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$greedy = isset($this->options['greedyNamed']) && $this->options['greedyNamed'] === true;
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foreach ((array)$this->options['named'] as $key => $val) {
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if (is_numeric($key)) {
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$rules[$val] = true;
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continue;
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}
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$rules[$key] = $val;
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}
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}
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foreach ($args as $param) {
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if (empty($param) && $param !== '0' && $param !== 0) {
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continue;
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}
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$separatorIsPresent = strpos($param, $namedConfig['separator']) !== false;
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if ((!isset($this->options['named']) || !empty($this->options['named'])) && $separatorIsPresent) {
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list($key, $val) = explode($namedConfig['separator'], $param, 2);
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$hasRule = isset($rules[$key]);
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$passIt = (!$hasRule && !$greedy) || ($hasRule && !$this->_matchNamed($val, $rules[$key], $context));
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if ($passIt) {
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$pass[] = $param;
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} else {
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if (preg_match_all('/\[([A-Za-z0-9_-]+)?\]/', $key, $matches, PREG_SET_ORDER)) {
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$matches = array_reverse($matches);
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$parts = explode('[', $key);
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$key = array_shift($parts);
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$arr = $val;
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foreach ($matches as $match) {
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if (empty($match[1])) {
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$arr = array($arr);
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} else {
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$arr = array(
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$match[1] => $arr
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);
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}
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}
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$val = $arr;
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}
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$named = array_merge_recursive($named, array($key => $val));
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}
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} else {
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$pass[] = $param;
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}
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}
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return array($pass, $named);
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}
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/**
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* Check if a named parameter matches the current rules.
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*
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* Return true if a given named $param's $val matches a given $rule depending on $context.
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* Currently implemented rule types are controller, action and match that can be combined with each other.
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*
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* @param string $val The value of the named parameter
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* @param array $rule The rule(s) to apply, can also be a match string
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* @param string $context An array with additional context information (controller / action)
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* @return bool
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*/
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protected function _matchNamed($val, $rule, $context) {
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if ($rule === true || $rule === false) {
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return $rule;
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}
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if (is_string($rule)) {
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$rule = array('match' => $rule);
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}
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if (!is_array($rule)) {
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return false;
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348 |
}
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$controllerMatches = (
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!isset($rule['controller'], $context['controller']) ||
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in_array($context['controller'], (array)$rule['controller'])
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);
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354 |
if (!$controllerMatches) {
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return false;
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}
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$actionMatches = (
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!isset($rule['action'], $context['action']) ||
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in_array($context['action'], (array)$rule['action'])
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);
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361 |
if (!$actionMatches) {
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return false;
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}
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364 |
return (!isset($rule['match']) || preg_match('/' . $rule['match'] . '/', $val));
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365 |
}
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366 |
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367 |
/**
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|
368 |
* Apply persistent parameters to a URL array. Persistent parameters are a special
|
|
|
369 |
* key used during route creation to force route parameters to persist when omitted from
|
|
|
370 |
* a URL array.
|
|
|
371 |
*
|
|
|
372 |
* @param array $url The array to apply persistent parameters to.
|
|
|
373 |
* @param array $params An array of persistent values to replace persistent ones.
|
|
|
374 |
* @return array An array with persistent parameters applied.
|
|
|
375 |
*/
|
|
|
376 |
public function persistParams($url, $params) {
|
|
|
377 |
if (empty($this->options['persist']) || !is_array($this->options['persist'])) {
|
|
|
378 |
return $url;
|
|
|
379 |
}
|
|
|
380 |
foreach ($this->options['persist'] as $persistKey) {
|
|
|
381 |
if (array_key_exists($persistKey, $params) && !isset($url[$persistKey])) {
|
|
|
382 |
$url[$persistKey] = $params[$persistKey];
|
|
|
383 |
}
|
|
|
384 |
}
|
|
|
385 |
return $url;
|
|
|
386 |
}
|
|
|
387 |
|
|
|
388 |
/**
|
|
|
389 |
* Check if a URL array matches this route instance.
|
|
|
390 |
*
|
|
|
391 |
* If the URL matches the route parameters and settings, then
|
|
|
392 |
* return a generated string URL. If the URL doesn't match the route parameters, false will be returned.
|
|
|
393 |
* This method handles the reverse routing or conversion of URL arrays into string URLs.
|
|
|
394 |
*
|
|
|
395 |
* @param array $url An array of parameters to check matching with.
|
|
|
396 |
* @return mixed Either a string URL for the parameters if they match or false.
|
|
|
397 |
*/
|
|
|
398 |
public function match($url) {
|
|
|
399 |
if (!$this->compiled()) {
|
|
|
400 |
$this->compile();
|
|
|
401 |
}
|
|
|
402 |
$defaults = $this->defaults;
|
|
|
403 |
|
|
|
404 |
if (isset($defaults['prefix'])) {
|
|
|
405 |
$url['prefix'] = $defaults['prefix'];
|
|
|
406 |
}
|
|
|
407 |
|
|
|
408 |
//check that all the key names are in the url
|
|
|
409 |
$keyNames = array_flip($this->keys);
|
|
|
410 |
if (array_intersect_key($keyNames, $url) !== $keyNames) {
|
|
|
411 |
return false;
|
|
|
412 |
}
|
|
|
413 |
|
|
|
414 |
// Missing defaults is a fail.
|
|
|
415 |
if (array_diff_key($defaults, $url) !== array()) {
|
|
|
416 |
return false;
|
|
|
417 |
}
|
|
|
418 |
|
|
|
419 |
$namedConfig = Router::namedConfig();
|
|
|
420 |
$prefixes = Router::prefixes();
|
|
|
421 |
$greedyNamed = $namedConfig['greedyNamed'];
|
|
|
422 |
$allowedNamedParams = $namedConfig['rules'];
|
|
|
423 |
|
|
|
424 |
$named = $pass = array();
|
|
|
425 |
|
|
|
426 |
foreach ($url as $key => $value) {
|
|
|
427 |
// keys that exist in the defaults and have different values is a match failure.
|
|
|
428 |
$defaultExists = array_key_exists($key, $defaults);
|
|
|
429 |
if ($defaultExists && $defaults[$key] != $value) {
|
|
|
430 |
return false;
|
|
|
431 |
} elseif ($defaultExists) {
|
|
|
432 |
continue;
|
|
|
433 |
}
|
|
|
434 |
|
|
|
435 |
// If the key is a routed key, its not different yet.
|
|
|
436 |
if (array_key_exists($key, $keyNames)) {
|
|
|
437 |
continue;
|
|
|
438 |
}
|
|
|
439 |
|
|
|
440 |
// pull out passed args
|
|
|
441 |
$numeric = is_numeric($key);
|
|
|
442 |
if ($numeric && isset($defaults[$key]) && $defaults[$key] == $value) {
|
|
|
443 |
continue;
|
|
|
444 |
} elseif ($numeric) {
|
|
|
445 |
$pass[] = $value;
|
|
|
446 |
unset($url[$key]);
|
|
|
447 |
continue;
|
|
|
448 |
}
|
|
|
449 |
|
|
|
450 |
// pull out named params if named params are greedy or a rule exists.
|
|
|
451 |
if (
|
|
|
452 |
($greedyNamed || isset($allowedNamedParams[$key])) &&
|
|
|
453 |
($value !== false && $value !== null) &&
|
|
|
454 |
(!in_array($key, $prefixes))
|
|
|
455 |
) {
|
|
|
456 |
$named[$key] = $value;
|
|
|
457 |
continue;
|
|
|
458 |
}
|
|
|
459 |
|
|
|
460 |
// keys that don't exist are different.
|
|
|
461 |
if (!$defaultExists && !empty($value)) {
|
|
|
462 |
return false;
|
|
|
463 |
}
|
|
|
464 |
}
|
|
|
465 |
|
|
|
466 |
//if a not a greedy route, no extra params are allowed.
|
|
|
467 |
if (!$this->_greedy && (!empty($pass) || !empty($named))) {
|
|
|
468 |
return false;
|
|
|
469 |
}
|
|
|
470 |
|
|
|
471 |
//check patterns for routed params
|
|
|
472 |
if (!empty($this->options)) {
|
|
|
473 |
foreach ($this->options as $key => $pattern) {
|
|
|
474 |
if (array_key_exists($key, $url) && !preg_match('#^' . $pattern . '$#', $url[$key])) {
|
|
|
475 |
return false;
|
|
|
476 |
}
|
|
|
477 |
}
|
|
|
478 |
}
|
|
|
479 |
return $this->_writeUrl(array_merge($url, compact('pass', 'named')));
|
|
|
480 |
}
|
|
|
481 |
|
|
|
482 |
/**
|
|
|
483 |
* Converts a matching route array into a URL string.
|
|
|
484 |
*
|
|
|
485 |
* Composes the string URL using the template
|
|
|
486 |
* used to create the route.
|
|
|
487 |
*
|
|
|
488 |
* @param array $params The params to convert to a string URL.
|
|
|
489 |
* @return string Composed route string.
|
|
|
490 |
*/
|
|
|
491 |
protected function _writeUrl($params) {
|
|
|
492 |
if (isset($params['prefix'])) {
|
|
|
493 |
$prefixed = $params['prefix'] . '_';
|
|
|
494 |
}
|
|
|
495 |
if (isset($prefixed, $params['action']) && strpos($params['action'], $prefixed) === 0) {
|
|
|
496 |
$params['action'] = substr($params['action'], strlen($prefixed));
|
|
|
497 |
unset($params['prefix']);
|
|
|
498 |
}
|
|
|
499 |
|
|
|
500 |
if (is_array($params['pass'])) {
|
|
|
501 |
$params['pass'] = implode('/', array_map('rawurlencode', $params['pass']));
|
|
|
502 |
}
|
|
|
503 |
|
|
|
504 |
$namedConfig = Router::namedConfig();
|
|
|
505 |
$separator = $namedConfig['separator'];
|
|
|
506 |
|
|
|
507 |
if (!empty($params['named']) && is_array($params['named'])) {
|
|
|
508 |
$named = array();
|
|
|
509 |
foreach ($params['named'] as $key => $value) {
|
|
|
510 |
if (is_array($value)) {
|
|
|
511 |
$flat = Hash::flatten($value, '%5D%5B');
|
|
|
512 |
foreach ($flat as $namedKey => $namedValue) {
|
|
|
513 |
$named[] = $key . "%5B{$namedKey}%5D" . $separator . rawurlencode($namedValue);
|
|
|
514 |
}
|
|
|
515 |
} else {
|
|
|
516 |
$named[] = $key . $separator . rawurlencode($value);
|
|
|
517 |
}
|
|
|
518 |
}
|
|
|
519 |
$params['pass'] = $params['pass'] . '/' . implode('/', $named);
|
|
|
520 |
}
|
|
|
521 |
$out = $this->template;
|
|
|
522 |
|
|
|
523 |
if (!empty($this->keys)) {
|
|
|
524 |
$search = $replace = array();
|
|
|
525 |
|
|
|
526 |
foreach ($this->keys as $key) {
|
|
|
527 |
$string = null;
|
|
|
528 |
if (isset($params[$key])) {
|
|
|
529 |
$string = $params[$key];
|
|
|
530 |
} elseif (strpos($out, $key) != strlen($out) - strlen($key)) {
|
|
|
531 |
$key .= '/';
|
|
|
532 |
}
|
|
|
533 |
$search[] = ':' . $key;
|
|
|
534 |
$replace[] = $string;
|
|
|
535 |
}
|
|
|
536 |
$out = str_replace($search, $replace, $out);
|
|
|
537 |
}
|
|
|
538 |
|
|
|
539 |
if (strpos($this->template, '**') !== false) {
|
|
|
540 |
$out = str_replace('**', $params['pass'], $out);
|
|
|
541 |
$out = str_replace('%2F', '/', $out);
|
|
|
542 |
} elseif (strpos($this->template, '*') !== false) {
|
|
|
543 |
$out = str_replace('*', $params['pass'], $out);
|
|
|
544 |
}
|
|
|
545 |
$out = str_replace('//', '/', $out);
|
|
|
546 |
return $out;
|
|
|
547 |
}
|
|
|
548 |
|
|
|
549 |
}
|