name : TraceableUrlMatcher.php <?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\Routing\Exception\ExceptionInterface; use Symfony\Component\Routing\Route; use Symfony\Component\Routing\RouteCollection; /** * TraceableUrlMatcher helps debug path info matching by tracing the match. * * @author Fabien Potencier <fabien@symfony.com> */ class TraceableUrlMatcher extends UrlMatcher { const ROUTE_DOES_NOT_MATCH = 0; const ROUTE_ALMOST_MATCHES = 1; const ROUTE_MATCHES = 2; protected $traces; public function getTraces($pathinfo) { $this->traces = array(); try { $this->match($pathinfo); } catch (ExceptionInterface $e) { } return $this->traces; } protected function matchCollection($pathinfo, RouteCollection $routes) { foreach ($routes as $name => $route) { $compiledRoute = $route->compile(); if (!preg_match($compiledRoute->getRegex(), $pathinfo, $matches)) { // does it match without any requirements? $r = new Route($route->getPath(), $route->getDefaults(), array(), $route->getOptions()); $cr = $r->compile(); if (!preg_match($cr->getRegex(), $pathinfo)) { $this->addTrace(sprintf('Path "%s" does not match', $route->getPath()), self::ROUTE_DOES_NOT_MATCH, $name, $route); continue; } foreach ($route->getRequirements() as $n => $regex) { $r = new Route($route->getPath(), $route->getDefaults(), array($n => $regex), $route->getOptions()); $cr = $r->compile(); if (in_array($n, $cr->getVariables()) && !preg_match($cr->getRegex(), $pathinfo)) { $this->addTrace(sprintf('Requirement for "%s" does not match (%s)', $n, $regex), self::ROUTE_ALMOST_MATCHES, $name, $route); continue 2; } } continue; } // check host requirement $hostMatches = array(); if ($compiledRoute->getHostRegex() && !preg_match($compiledRoute->getHostRegex(), $this->context->getHost(), $hostMatches)) { $this->addTrace(sprintf('Host "%s" does not match the requirement ("%s")', $this->context->getHost(), $route->getHost()), self::ROUTE_ALMOST_MATCHES, $name, $route); continue; } // check HTTP method requirement if ($req = $route->getRequirement('_method')) { // HEAD and GET are equivalent as per RFC if ('HEAD' === $method = $this->context->getMethod()) { $method = 'GET'; } if (!in_array($method, $req = explode('|', strtoupper($req)))) { $this->allow = array_merge($this->allow, $req); $this->addTrace(sprintf('Method "%s" does not match the requirement ("%s")', $this->context->getMethod(), implode(', ', $req)), self::ROUTE_ALMOST_MATCHES, $name, $route); continue; } } // check condition if ($condition = $route->getCondition()) { if (!$this->getExpressionLanguage()->evaluate($condition, array('context' => $this->context, 'request' => $this->request))) { $this->addTrace(sprintf('Condition "%s" does not evaluate to "true"', $condition), self::ROUTE_ALMOST_MATCHES, $name, $route); continue; } } // check HTTP scheme requirement if ($scheme = $route->getRequirement('_scheme')) { if ($this->context->getScheme() !== $scheme) { $this->addTrace(sprintf('Scheme "%s" does not match the requirement ("%s"); the user will be redirected', $this->context->getScheme(), $scheme), self::ROUTE_ALMOST_MATCHES, $name, $route); return true; } } $this->addTrace('Route matches!', self::ROUTE_MATCHES, $name, $route); return true; } } private function addTrace($log, $level = self::ROUTE_DOES_NOT_MATCH, $name = null, $route = null) { $this->traces[] = array( 'log' => $log, 'name' => $name, 'level' => $level, 'path' => null !== $route ? $route->getPath() : null, ); } }