359 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			359 lines
		
	
	
		
			12 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;
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use Psr\Log\LoggerInterface;
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use Symfony\Component\Config\ConfigCacheFactory;
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use Symfony\Component\Config\ConfigCacheFactoryInterface;
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use Symfony\Component\Config\ConfigCacheInterface;
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use Symfony\Component\Config\Loader\LoaderInterface;
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use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\Routing\Generator\CompiledUrlGenerator;
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use Symfony\Component\Routing\Generator\ConfigurableRequirementsInterface;
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use Symfony\Component\Routing\Generator\Dumper\CompiledUrlGeneratorDumper;
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use Symfony\Component\Routing\Generator\Dumper\GeneratorDumperInterface;
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
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use Symfony\Component\Routing\Matcher\CompiledUrlMatcher;
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use Symfony\Component\Routing\Matcher\Dumper\CompiledUrlMatcherDumper;
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use Symfony\Component\Routing\Matcher\Dumper\MatcherDumperInterface;
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use Symfony\Component\Routing\Matcher\RequestMatcherInterface;
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use Symfony\Component\Routing\Matcher\UrlMatcherInterface;
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/**
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 * The Router class is an example of the integration of all pieces of the
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 * routing system for easier use.
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 *
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 * @author Fabien Potencier <fabien@symfony.com>
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 */
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class Router implements RouterInterface, RequestMatcherInterface
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{
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    /**
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     * @var UrlMatcherInterface|null
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     */
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    protected $matcher;
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    /**
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     * @var UrlGeneratorInterface|null
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     */
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    protected $generator;
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    /**
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     * @var RequestContext
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     */
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    protected $context;
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    /**
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     * @var LoaderInterface
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     */
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    protected $loader;
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    /**
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     * @var RouteCollection|null
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     */
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    protected $collection;
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    /**
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     * @var mixed
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     */
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    protected $resource;
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    /**
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     * @var array
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     */
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    protected $options = [];
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    /**
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     * @var LoggerInterface|null
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     */
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    protected $logger;
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    /**
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     * @var string|null
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     */
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    protected $defaultLocale;
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    private ConfigCacheFactoryInterface $configCacheFactory;
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    /**
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     * @var ExpressionFunctionProviderInterface[]
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     */
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    private array $expressionLanguageProviders = [];
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    private static ?array $cache = [];
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    public function __construct(LoaderInterface $loader, mixed $resource, array $options = [], ?RequestContext $context = null, ?LoggerInterface $logger = null, ?string $defaultLocale = null)
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    {
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        $this->loader = $loader;
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        $this->resource = $resource;
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        $this->logger = $logger;
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        $this->context = $context ?? new RequestContext();
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        $this->setOptions($options);
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        $this->defaultLocale = $defaultLocale;
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    }
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    /**
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     * Sets options.
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     *
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     * Available options:
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     *
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     *   * cache_dir:              The cache directory (or null to disable caching)
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     *   * debug:                  Whether to enable debugging or not (false by default)
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     *   * generator_class:        The name of a UrlGeneratorInterface implementation
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     *   * generator_dumper_class: The name of a GeneratorDumperInterface implementation
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     *   * matcher_class:          The name of a UrlMatcherInterface implementation
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     *   * matcher_dumper_class:   The name of a MatcherDumperInterface implementation
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     *   * resource_type:          Type hint for the main resource (optional)
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     *   * strict_requirements:    Configure strict requirement checking for generators
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     *                             implementing ConfigurableRequirementsInterface (default is true)
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     *
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     * @return void
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     *
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     * @throws \InvalidArgumentException When unsupported option is provided
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     */
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    public function setOptions(array $options)
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    {
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        $this->options = [
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            'cache_dir' => null,
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            'debug' => false,
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            'generator_class' => CompiledUrlGenerator::class,
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            'generator_dumper_class' => CompiledUrlGeneratorDumper::class,
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            'matcher_class' => CompiledUrlMatcher::class,
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            'matcher_dumper_class' => CompiledUrlMatcherDumper::class,
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            'resource_type' => null,
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            'strict_requirements' => true,
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        ];
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        // check option names and live merge, if errors are encountered Exception will be thrown
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        $invalid = [];
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        foreach ($options as $key => $value) {
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            if (\array_key_exists($key, $this->options)) {
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                $this->options[$key] = $value;
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            } else {
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                $invalid[] = $key;
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            }
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        }
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        if ($invalid) {
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            throw new \InvalidArgumentException(sprintf('The Router does not support the following options: "%s".', implode('", "', $invalid)));
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        }
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    }
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    /**
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     * Sets an option.
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     *
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     * @return void
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     *
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     * @throws \InvalidArgumentException
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     */
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    public function setOption(string $key, mixed $value)
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    {
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        if (!\array_key_exists($key, $this->options)) {
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            throw new \InvalidArgumentException(sprintf('The Router does not support the "%s" option.', $key));
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        }
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        $this->options[$key] = $value;
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    }
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    /**
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     * Gets an option value.
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     *
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     * @throws \InvalidArgumentException
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     */
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    public function getOption(string $key): mixed
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    {
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        if (!\array_key_exists($key, $this->options)) {
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            throw new \InvalidArgumentException(sprintf('The Router does not support the "%s" option.', $key));
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        }
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        return $this->options[$key];
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    }
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    /**
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     * @return RouteCollection
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     */
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    public function getRouteCollection()
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    {
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        return $this->collection ??= $this->loader->load($this->resource, $this->options['resource_type']);
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    }
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    /**
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     * @return void
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     */
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    public function setContext(RequestContext $context)
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    {
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        $this->context = $context;
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        if (isset($this->matcher)) {
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            $this->getMatcher()->setContext($context);
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        }
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        if (isset($this->generator)) {
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            $this->getGenerator()->setContext($context);
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        }
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    }
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    public function getContext(): RequestContext
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    {
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        return $this->context;
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    }
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    /**
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     * Sets the ConfigCache factory to use.
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     *
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     * @return void
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     */
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    public function setConfigCacheFactory(ConfigCacheFactoryInterface $configCacheFactory)
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    {
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        $this->configCacheFactory = $configCacheFactory;
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    }
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    public function generate(string $name, array $parameters = [], int $referenceType = self::ABSOLUTE_PATH): string
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    {
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        return $this->getGenerator()->generate($name, $parameters, $referenceType);
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    }
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    public function match(string $pathinfo): array
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    {
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        return $this->getMatcher()->match($pathinfo);
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    }
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    public function matchRequest(Request $request): array
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    {
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        $matcher = $this->getMatcher();
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        if (!$matcher instanceof RequestMatcherInterface) {
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            // fallback to the default UrlMatcherInterface
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            return $matcher->match($request->getPathInfo());
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        }
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        return $matcher->matchRequest($request);
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    }
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    /**
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     * Gets the UrlMatcher or RequestMatcher instance associated with this Router.
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     */
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    public function getMatcher(): UrlMatcherInterface|RequestMatcherInterface
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    {
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        if (isset($this->matcher)) {
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            return $this->matcher;
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        }
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        if (null === $this->options['cache_dir']) {
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            $routes = $this->getRouteCollection();
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            $compiled = is_a($this->options['matcher_class'], CompiledUrlMatcher::class, true);
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            if ($compiled) {
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                $routes = (new CompiledUrlMatcherDumper($routes))->getCompiledRoutes();
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            }
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            $this->matcher = new $this->options['matcher_class']($routes, $this->context);
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            if (method_exists($this->matcher, 'addExpressionLanguageProvider')) {
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                foreach ($this->expressionLanguageProviders as $provider) {
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                    $this->matcher->addExpressionLanguageProvider($provider);
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                }
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            }
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            return $this->matcher;
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        }
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        $cache = $this->getConfigCacheFactory()->cache($this->options['cache_dir'].'/url_matching_routes.php',
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            function (ConfigCacheInterface $cache) {
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                $dumper = $this->getMatcherDumperInstance();
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                if (method_exists($dumper, 'addExpressionLanguageProvider')) {
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                    foreach ($this->expressionLanguageProviders as $provider) {
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                        $dumper->addExpressionLanguageProvider($provider);
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                    }
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                }
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                $cache->write($dumper->dump(), $this->getRouteCollection()->getResources());
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                unset(self::$cache[$cache->getPath()]);
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            }
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        );
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        return $this->matcher = new $this->options['matcher_class'](self::getCompiledRoutes($cache->getPath()), $this->context);
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    }
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    /**
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     * Gets the UrlGenerator instance associated with this Router.
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     */
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    public function getGenerator(): UrlGeneratorInterface
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    {
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        if (isset($this->generator)) {
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            return $this->generator;
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        }
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        if (null === $this->options['cache_dir']) {
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            $routes = $this->getRouteCollection();
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            $compiled = is_a($this->options['generator_class'], CompiledUrlGenerator::class, true);
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            if ($compiled) {
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                $generatorDumper = new CompiledUrlGeneratorDumper($routes);
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                $routes = array_merge($generatorDumper->getCompiledRoutes(), $generatorDumper->getCompiledAliases());
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            }
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            $this->generator = new $this->options['generator_class']($routes, $this->context, $this->logger, $this->defaultLocale);
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        } else {
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            $cache = $this->getConfigCacheFactory()->cache($this->options['cache_dir'].'/url_generating_routes.php',
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                function (ConfigCacheInterface $cache) {
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                    $dumper = $this->getGeneratorDumperInstance();
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                    $cache->write($dumper->dump(), $this->getRouteCollection()->getResources());
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                    unset(self::$cache[$cache->getPath()]);
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                }
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            );
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            $this->generator = new $this->options['generator_class'](self::getCompiledRoutes($cache->getPath()), $this->context, $this->logger, $this->defaultLocale);
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        }
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        if ($this->generator instanceof ConfigurableRequirementsInterface) {
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            $this->generator->setStrictRequirements($this->options['strict_requirements']);
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        }
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        return $this->generator;
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    }
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    /**
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     * @return void
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     */
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    public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
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    {
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        $this->expressionLanguageProviders[] = $provider;
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    }
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    protected function getGeneratorDumperInstance(): GeneratorDumperInterface
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    {
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        return new $this->options['generator_dumper_class']($this->getRouteCollection());
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    }
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    protected function getMatcherDumperInstance(): MatcherDumperInterface
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    {
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        return new $this->options['matcher_dumper_class']($this->getRouteCollection());
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    }
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    /**
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     * Provides the ConfigCache factory implementation, falling back to a
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     * default implementation if necessary.
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     */
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    private function getConfigCacheFactory(): ConfigCacheFactoryInterface
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    {
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        return $this->configCacheFactory ??= new ConfigCacheFactory($this->options['debug']);
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    }
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    private static function getCompiledRoutes(string $path): array
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    {
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        if ([] === self::$cache && \function_exists('opcache_invalidate') && filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOL) && (!\in_array(\PHP_SAPI, ['cli', 'phpdbg', 'embed'], true) || filter_var(\ini_get('opcache.enable_cli'), \FILTER_VALIDATE_BOOL))) {
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            self::$cache = null;
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        }
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        if (null === self::$cache) {
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            return require $path;
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        }
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        return self::$cache[$path] ??= require $path;
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    }
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}
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