vendor/symfony/routing/Matcher/UrlMatcher.php line 94
<?php/** This file is part of the Symfony package.** (c) Fabien Potencier <fabien@symfony.com>** For the full copyright and license information, please view the LICENSE* file that was distributed with this source code.*/namespace Symfony\Component\Routing\Matcher;use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;use Symfony\Component\ExpressionLanguage\ExpressionLanguage;use Symfony\Component\HttpFoundation\Request;use Symfony\Component\Routing\Exception\MethodNotAllowedException;use Symfony\Component\Routing\Exception\NoConfigurationException;use Symfony\Component\Routing\Exception\ResourceNotFoundException;use Symfony\Component\Routing\RequestContext;use Symfony\Component\Routing\Route;use Symfony\Component\Routing\RouteCollection;/*** UrlMatcher matches URL based on a set of routes.** @author Fabien Potencier <fabien@symfony.com>*/class UrlMatcher implements UrlMatcherInterface, RequestMatcherInterface{public const REQUIREMENT_MATCH = 0;public const REQUIREMENT_MISMATCH = 1;public const ROUTE_MATCH = 2;/** @var RequestContext */protected $context;/*** Collects HTTP methods that would be allowed for the request.*/protected $allow = [];/*** Collects URI schemes that would be allowed for the request.** @internal*/protected array $allowSchemes = [];protected $routes;protected $request;protected $expressionLanguage;/*** @var ExpressionFunctionProviderInterface[]*/protected $expressionLanguageProviders = [];public function __construct(RouteCollection $routes, RequestContext $context){$this->routes = $routes;$this->context = $context;}public function setContext(RequestContext $context){$this->context = $context;}public function getContext(): RequestContext{return $this->context;}public function match(string $pathinfo): array{$this->allow = $this->allowSchemes = [];if ($ret = $this->matchCollection(rawurldecode($pathinfo) ?: '/', $this->routes)) {return $ret;}if ('/' === $pathinfo && !$this->allow && !$this->allowSchemes) {throw new NoConfigurationException();}throw 0 < \count($this->allow) ? new MethodNotAllowedException(array_unique($this->allow)) : new ResourceNotFoundException(sprintf('No routes found for "%s".', $pathinfo));}public function matchRequest(Request $request): array{$this->request = $request;$ret = $this->match($request->getPathInfo());$this->request = null;return $ret;}public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider){$this->expressionLanguageProviders[] = $provider;}/*** Tries to match a URL with a set of routes.** @param string $pathinfo The path info to be parsed** @throws NoConfigurationException If no routing configuration could be found* @throws ResourceNotFoundException If the resource could not be found* @throws MethodNotAllowedException If the resource was found but the request method is not allowed*/protected function matchCollection(string $pathinfo, RouteCollection $routes): array{// HEAD and GET are equivalent as per RFCif ('HEAD' === $method = $this->context->getMethod()) {$method = 'GET';}$supportsTrailingSlash = 'GET' === $method && $this instanceof RedirectableUrlMatcherInterface;$trimmedPathinfo = rtrim($pathinfo, '/') ?: '/';foreach ($routes as $name => $route) {$compiledRoute = $route->compile();$staticPrefix = rtrim($compiledRoute->getStaticPrefix(), '/');$requiredMethods = $route->getMethods();// check the static prefix of the URL first. Only use the more expensive preg_match when it matchesif ('' !== $staticPrefix && !str_starts_with($trimmedPathinfo, $staticPrefix)) {continue;}$regex = $compiledRoute->getRegex();$pos = strrpos($regex, '$');$hasTrailingSlash = '/' === $regex[$pos - 1];$regex = substr_replace($regex, '/?$', $pos - $hasTrailingSlash, 1 + $hasTrailingSlash);if (!preg_match($regex, $pathinfo, $matches)) {continue;}$hasTrailingVar = $trimmedPathinfo !== $pathinfo && preg_match('#\{[\w\x80-\xFF]+\}/?$#', $route->getPath());if ($hasTrailingVar && ($hasTrailingSlash || (null === $m = $matches[\count($compiledRoute->getPathVariables())] ?? null) || '/' !== ($m[-1] ?? '/')) && preg_match($regex, $trimmedPathinfo, $m)) {if ($hasTrailingSlash) {$matches = $m;} else {$hasTrailingVar = false;}}$hostMatches = [];if ($compiledRoute->getHostRegex() && !preg_match($compiledRoute->getHostRegex(), $this->context->getHost(), $hostMatches)) {continue;}$attributes = $this->getAttributes($route, $name, array_replace($matches, $hostMatches));$status = $this->handleRouteRequirements($pathinfo, $name, $route, $attributes);if (self::REQUIREMENT_MISMATCH === $status[0]) {continue;}if ('/' !== $pathinfo && !$hasTrailingVar && $hasTrailingSlash === ($trimmedPathinfo === $pathinfo)) {if ($supportsTrailingSlash && (!$requiredMethods || \in_array('GET', $requiredMethods))) {return $this->allow = $this->allowSchemes = [];}continue;}if ($route->getSchemes() && !$route->hasScheme($this->context->getScheme())) {$this->allowSchemes = array_merge($this->allowSchemes, $route->getSchemes());continue;}if ($requiredMethods && !\in_array($method, $requiredMethods)) {$this->allow = array_merge($this->allow, $requiredMethods);continue;}return array_replace($attributes, $status[1] ?? []);}return [];}/*** Returns an array of values to use as request attributes.** As this method requires the Route object, it is not available* in matchers that do not have access to the matched Route instance* (like the PHP and Apache matcher dumpers).*/protected function getAttributes(Route $route, string $name, array $attributes): array{$defaults = $route->getDefaults();if (isset($defaults['_canonical_route'])) {$name = $defaults['_canonical_route'];unset($defaults['_canonical_route']);}$attributes['_route'] = $name;return $this->mergeDefaults($attributes, $defaults);}/*** Handles specific route requirements.** @return array The first element represents the status, the second contains additional information*/protected function handleRouteRequirements(string $pathinfo, string $name, Route $route/* , array $routeParameters */): array{if (\func_num_args() < 4) {trigger_deprecation('symfony/routing', '6.1', 'The "%s()" method will have a new "array $routeParameters" argument in version 7.0, not defining it is deprecated.', __METHOD__);$routeParameters = [];} else {$routeParameters = func_get_arg(3);if (!\is_array($routeParameters)) {throw new \TypeError(sprintf('"%s": Argument $routeParameters is expected to be an array, got "%s".', __METHOD__, get_debug_type($routeParameters)));}}// expression conditionif ($route->getCondition() && !$this->getExpressionLanguage()->evaluate($route->getCondition(), ['context' => $this->context,'request' => $this->request ?: $this->createRequest($pathinfo),'params' => $routeParameters,])) {return [self::REQUIREMENT_MISMATCH, null];}return [self::REQUIREMENT_MATCH, null];}/*** Get merged default parameters.*/protected function mergeDefaults(array $params, array $defaults): array{foreach ($params as $key => $value) {if (!\is_int($key) && null !== $value) {$defaults[$key] = $value;}}return $defaults;}protected function getExpressionLanguage(){if (null === $this->expressionLanguage) {if (!class_exists(ExpressionLanguage::class)) {throw new \LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');}$this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);}return $this->expressionLanguage;}/*** @internal*/protected function createRequest(string $pathinfo): ?Request{if (!class_exists(Request::class)) {return null;}return Request::create($this->context->getScheme().'://'.$this->context->getHost().$this->context->getBaseUrl().$pathinfo, $this->context->getMethod(), $this->context->getParameters(), [], [], ['SCRIPT_FILENAME' => $this->context->getBaseUrl(),'SCRIPT_NAME' => $this->context->getBaseUrl(),]);}}