119 lines
3.4 KiB
PHP
119 lines
3.4 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Routing\Matcher;
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use Symfony\Component\Routing\Exception\MethodNotAllowedException;
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/**
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* ApacheUrlMatcher matches URL based on Apache mod_rewrite matching (see ApacheMatcherDumper).
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*
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* @author Fabien Potencier <fabien@symfony.com>
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* @author Arnaud Le Blanc <arnaud.lb@gmail.com>
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*/
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class ApacheUrlMatcher extends UrlMatcher
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{
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/**
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* Tries to match a URL based on Apache mod_rewrite matching.
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*
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* Returns false if no route matches the URL.
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*
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* @param string $pathinfo The pathinfo to be parsed
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*
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* @return array An array of parameters
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*
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* @throws MethodNotAllowedException If the current method is not allowed
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*/
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public function match($pathinfo)
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{
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$parameters = array();
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$defaults = array();
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$allow = array();
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$route = null;
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foreach ($this->denormalizeValues($_SERVER) as $key => $value) {
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$name = $key;
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// skip non-routing variables
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// this improves performance when $_SERVER contains many usual
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// variables like HTTP_*, DOCUMENT_ROOT, REQUEST_URI, ...
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if (false === strpos($name, '_ROUTING_')) {
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continue;
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}
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while (0 === strpos($name, 'REDIRECT_')) {
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$name = substr($name, 9);
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}
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// expect _ROUTING_<type>_<name>
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// or _ROUTING_<type>
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if (0 !== strpos($name, '_ROUTING_')) {
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continue;
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}
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if (false !== $pos = strpos($name, '_', 9)) {
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$type = substr($name, 9, $pos-9);
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$name = substr($name, $pos+1);
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} else {
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$type = substr($name, 9);
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}
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if ('param' === $type) {
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if ('' !== $value) {
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$parameters[$name] = $value;
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}
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} elseif ('default' === $type) {
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$defaults[$name] = $value;
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} elseif ('route' === $type) {
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$route = $value;
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} elseif ('allow' === $type) {
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$allow[] = $name;
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}
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unset($_SERVER[$key]);
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}
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if (null !== $route) {
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$parameters['_route'] = $route;
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return $this->mergeDefaults($parameters, $defaults);
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} elseif (0 < count($allow)) {
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throw new MethodNotAllowedException($allow);
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} else {
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return parent::match($pathinfo);
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}
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}
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/**
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* Denormalizes an array of values.
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*
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* @param string[] $values
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*
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* @return array
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*/
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private function denormalizeValues(array $values)
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{
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$normalizedValues = array();
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foreach ($values as $key => $value) {
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if (preg_match('~^(.*)\[(\d+)\]$~', $key, $matches)) {
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if (!isset($normalizedValues[$matches[1]])) {
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$normalizedValues[$matches[1]] = array();
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}
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$normalizedValues[$matches[1]][(int) $matches[2]] = $value;
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} else {
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$normalizedValues[$key] = $value;
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}
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}
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return $normalizedValues;
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}
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}
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