mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-15 11:28:25 +00:00
420 lines
No EOL
11 KiB
PHP
420 lines
No EOL
11 KiB
PHP
<?php
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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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* PHP5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs
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* @since CakePHP(tm) v 1.3
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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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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* @access public
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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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* @access public
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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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* @access public
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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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* @access public
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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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* @access protected
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*/
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protected $_greedy = false;
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/**
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* The compiled route regular expresssion
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*
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* @var string
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* @access protected
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*/
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protected $_compiledRoute = null;
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/**
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* Constant for the sigil that indicates a route param is a named parameter.
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*/
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const SIGIL_NAMED = ':';
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/**
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* Constant for the sigil that indicates a route param is a query string parameter.
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*/
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const SIGIL_QUERYSTRING = '?';
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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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* @access private
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*/
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private $__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 string $params Array of parameters and additional options for the Route
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* @return void
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*/
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public function __construct($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)$options;
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}
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/**
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* Check if a Route has been compiled into a regular expression.
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*
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* @return boolean
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*/
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public function compiled() {
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return !empty($this->_compiledRoute);
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}
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/**
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* Compiles the route's regular expression. 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 $this->_compiledRoute;
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}
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/**
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* Builds a route regular expression. Uses the template, defaults and options
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* properties to compile a regular expression that can be used to parse request strings.
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*
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* @return void
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*/
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protected function _writeRoute() {
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if (empty($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, $m)) {
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$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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}
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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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* 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, $url, $route)) {
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return false;
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} else {
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foreach ($this->defaults as $key => $val) {
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if ($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_' . $header[1];
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}
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$val = (array)$val;
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$h = false;
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foreach ($val as $v) {
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if (env(strtoupper($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'] = $route['named'] = array();
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$route += $this->defaults;
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//move numerically indexed elements from the defaults into pass.
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foreach ($route as $key => $value) {
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if (is_integer($key)) {
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$route['pass'][] = $value;
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unset($route[$key]);
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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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/**
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* Apply persistent parameters to a url array. Persistant parameters are a special
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* key used during route creation to force route parameters to persist when omitted from
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* a url array.
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*
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* @param array $url The array to apply persistent parameters to.
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* @param array $params An array of persistent values to replace persistent ones.
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* @return array An array with persistent parameters applied.
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*/
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public function persistParams($url, $params) {
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foreach ($this->options['persist'] as $persistKey) {
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if (array_key_exists($persistKey, $params) && !isset($url[$persistKey])) {
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$url[$persistKey] = $params[$persistKey];
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}
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}
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return $url;
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}
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/**
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* Attempt to match a url array. If the url matches the route parameters + settings, then
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* return a generated string url. If the url doesn't match the route parameters false will be returned.
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* This method handles the reverse routing or conversion of url arrays into string urls.
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*
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* @param array $url An array of parameters to check matching with.
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* @return mixed Either a string url for the parameters if they match or false.
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*/
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public function match($url) {
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if (!$this->compiled()) {
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$this->compile();
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}
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$defaults = $this->defaults;
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if (isset($defaults['prefix'])) {
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$url['prefix'] = $defaults['prefix'];
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}
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//check that all the key names are in the url
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$keyNames = array_flip($this->keys);
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if (array_intersect_key($keyNames, $url) !== $keyNames) {
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return false;
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}
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// Missing defaults is a fail.
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if (array_diff_key($defaults, $url) !== array()) {
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return false;
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}
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$named = $pass = $_query = array();
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foreach ($url as $key => $value) {
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// pull out named params so comparisons later on are faster.
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if ($key[0] === CakeRoute::SIGIL_NAMED && ($value !== false && $value !== null)) {
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$named[substr($key, 1)] = $value;
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unset($url[$key]);
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continue;
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}
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// pull out querystring params
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if ($key[0] === CakeRoute::SIGIL_QUERYSTRING && ($value !== false && $value !== null)) {
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$_query[substr($key, 1)] = $value;
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unset($url[$key]);
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continue;
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}
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// keys that exist in the defaults and have different values cause match failures.
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$keyExists = array_key_exists($key, $defaults);
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if ($keyExists && $defaults[$key] != $value) {
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return false;
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}
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// If the key is a routed key, its not different yet.
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if (array_key_exists($key, $keyNames)) {
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continue;
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}
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// pull out passed args
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$numeric = is_numeric($key);
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if ($numeric && isset($defaults[$key]) && $defaults[$key] == $value) {
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continue;
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} elseif ($numeric) {
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$pass[] = $value;
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unset($url[$key]);
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continue;
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}
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// keys that don't exist are different.
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if (!$keyExists && !empty($value)) {
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return false;
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}
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}
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//if a not a greedy route, no extra params are allowed.
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if (!$this->_greedy && (!empty($pass) || !empty($named))) {
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return false;
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}
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//check patterns for routed params
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if (!empty($this->options)) {
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foreach ($this->options as $key => $pattern) {
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if (array_key_exists($key, $url) && !preg_match('#^' . $pattern . '$#', $url[$key])) {
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return false;
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}
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}
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}
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return $this->_writeUrl(array_merge($url, compact('pass', 'named', '_query')));
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}
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/**
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* Converts a matching route array into a url string. Composes the string url using the template
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* used to create the route.
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*
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* @param array $params The params to convert to a string url.
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* @return string Composed route string.
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*/
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protected function _writeUrl($params) {
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if (isset($params['prefix'], $params['action'])) {
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$params['action'] = str_replace($params['prefix'] . '_', '', $params['action']);
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unset($params['prefix']);
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}
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if (is_array($params['pass'])) {
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$params['pass'] = implode('/', $params['pass']);
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}
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$separator = Router::$named['separator'];
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if (!empty($params['named']) && is_array($params['named'])) {
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$named = array();
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foreach ($params['named'] as $key => $value) {
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if (is_array($value)) {
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foreach ($value as $namedKey => $namedValue) {
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$named[] = $key . "[$namedKey]" . $separator . $namedValue;
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}
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} else {
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$named[] = $key . $separator . $value;
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}
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}
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$params['pass'] = $params['pass'] . '/' . implode('/', $named);
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}
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$out = $this->template;
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$search = $replace = array();
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foreach ($this->keys as $key) {
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$string = null;
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if (isset($params[$key])) {
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$string = $params[$key];
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} elseif (strpos($out, $key) != strlen($out) - strlen($key)) {
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$key .= '/';
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}
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$search[] = ':' . $key;
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$replace[] = $string;
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}
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$out = str_replace($search, $replace, $out);
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if (strpos($this->template, '*')) {
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$out = str_replace('*', $params['pass'], $out);
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}
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if (!empty($params['_query'])) {
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$out .= $this->queryString($params['_query']);
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}
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$out = str_replace('//', '/', $out);
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return $out;
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}
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/**
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* Generates a well-formed querystring from $q
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*
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* Will compose an array or nested array into a proper querystring.
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*
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* @param mixed $q An array of parameters to compose into a query string.
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* @param bool $escape Whether or not to use escaped &
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* @return string
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*/
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public function queryString($q, $escape = false) {
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$join = '&';
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if ($escape === true) {
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$join = '&';
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}
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return '?' . http_build_query($q, null, $join);
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}
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} |