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File / Folder	Size	Action
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Dumper	--	ren
CompiledUrlMatcher.php	0.841KB	edt ren
ExpressionLanguageProvi...	1.521KB	edt ren
RedirectableUrlMatcher.php	2.012KB	edt ren
RedirectableUrlMatcherI...	0.844KB	edt ren
RequestMatcherInterface...	1.22KB	edt ren
TraceableUrlMatcher.php	6.804KB	edt ren
UrlMatcher.php	9.73KB	edt ren
UrlMatcherInterface.php	1.338KB	edt ren

<?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\HttpFoundation\Request;
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
{
    public const ROUTE_DOES_NOT_MATCH = 0;
    public const ROUTE_ALMOST_MATCHES = 1;
    public const ROUTE_MATCHES = 2;

protected $traces;

/**
     * @return array
     */
    public function getTraces(string $pathinfo)
    {
        $this->traces = [];

try {
            $this->match($pathinfo);
        } catch (ExceptionInterface) {
        }

return $this->traces;
    }

/**
     * @return array
     */
    public function getTracesForRequest(Request $request)
    {
        $this->request = $request;
        $traces = $this->getTraces($request->getPathInfo());
        $this->request = null;

return $traces;
    }

protected function matchCollection(string $pathinfo, RouteCollection $routes): array
    {
        // HEAD and GET are equivalent as per RFC
        if ('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 matches
            if ('' !== $staticPrefix && !str_starts_with($trimmedPathinfo, $staticPrefix)) {
                $this->addTrace(sprintf('Path "%s" does not match', $route->getPath()), self::ROUTE_DOES_NOT_MATCH, $name, $route);
                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)) {
                // does it match without any requirements?
                $r = new Route($route->getPath(), $route->getDefaults(), [], $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(), $route->getDefaults(), [$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;
            }

$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)) {
                $this->addTrace(sprintf('Host "%s" does not match the requirement ("%s")', $this->context->getHost(), $route->getHost()), self::ROUTE_ALMOST_MATCHES, $name, $route);
                continue;
            }

$attributes = $this->getAttributes($route, $name, array_replace($matches, $hostMatches));

$status = $this->handleRouteRequirements($pathinfo, $name, $route, $attributes);

if (self::REQUIREMENT_MISMATCH === $status[0]) {
                $this->addTrace(sprintf('Condition "%s" does not evaluate to "true"', $route->getCondition()), self::ROUTE_ALMOST_MATCHES, $name, $route);
                continue;
            }

if ('/' !== $pathinfo && !$hasTrailingVar && $hasTrailingSlash === ($trimmedPathinfo === $pathinfo)) {
                if ($supportsTrailingSlash && (!$requiredMethods || \in_array('GET', $requiredMethods))) {
                    $this->addTrace('Route matches!', self::ROUTE_MATCHES, $name, $route);

return $this->allow = $this->allowSchemes = [];
                }
                $this->addTrace(sprintf('Path "%s" does not match', $route->getPath()), self::ROUTE_DOES_NOT_MATCH, $name, $route);
                continue;
            }

if ($route->getSchemes() && !$route->hasScheme($this->context->getScheme())) {
                $this->allowSchemes = array_merge($this->allowSchemes, $route->getSchemes());
                $this->addTrace(sprintf('Scheme "%s" does not match any of the required schemes (%s)', $this->context->getScheme(), implode(', ', $route->getSchemes())), self::ROUTE_ALMOST_MATCHES, $name, $route);
                continue;
            }

if ($requiredMethods && !\in_array($method, $requiredMethods)) {
                $this->allow = array_merge($this->allow, $requiredMethods);
                $this->addTrace(sprintf('Method "%s" does not match any of the required methods (%s)', $this->context->getMethod(), implode(', ', $requiredMethods)), self::ROUTE_ALMOST_MATCHES, $name, $route);
                continue;
            }

$this->addTrace('Route matches!', self::ROUTE_MATCHES, $name, $route);

return array_replace($attributes, $status[1] ?? []);
        }

return [];
    }

private function addTrace(string $log, int $level = self::ROUTE_DOES_NOT_MATCH, ?string $name = null, ?Route $route = null): void
    {
        $this->traces[] = [
            'log' => $log,
            'name' => $name,
            'level' => $level,
            'path' => $route?->getPath(),
        ];
    }
}

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