389 lines
12 KiB
PHP
389 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\ConfigurableRequirementsInterface;
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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\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 = array();
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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 ConfigCacheFactoryInterface|null
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*/
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private $configCacheFactory;
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/**
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* @var ExpressionFunctionProviderInterface[]
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*/
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private $expressionLanguageProviders = array();
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/**
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* @param LoaderInterface $loader A LoaderInterface instance
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* @param mixed $resource The main resource to load
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* @param array $options An array of options
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* @param RequestContext $context The context
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* @param LoggerInterface $logger A logger instance
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*/
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public function __construct(LoaderInterface $loader, $resource, array $options = array(), RequestContext $context = null, LoggerInterface $logger = null)
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{
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$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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}
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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_base_class: The base class for the dumped generator class
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* * generator_cache_class: The class name for the dumped generator class
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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_base_class: The base class for the dumped matcher class
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* * matcher_dumper_class: The class name for the dumped matcher class
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* * matcher_cache_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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* @param array $options An array of options
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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 = array(
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'cache_dir' => null,
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'debug' => false,
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'generator_class' => 'Symfony\\Component\\Routing\\Generator\\UrlGenerator',
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'generator_base_class' => 'Symfony\\Component\\Routing\\Generator\\UrlGenerator',
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'generator_dumper_class' => 'Symfony\\Component\\Routing\\Generator\\Dumper\\PhpGeneratorDumper',
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'generator_cache_class' => 'ProjectUrlGenerator',
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'matcher_class' => 'Symfony\\Component\\Routing\\Matcher\\UrlMatcher',
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'matcher_base_class' => 'Symfony\\Component\\Routing\\Matcher\\UrlMatcher',
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'matcher_dumper_class' => 'Symfony\\Component\\Routing\\Matcher\\Dumper\\PhpMatcherDumper',
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'matcher_cache_class' => 'ProjectUrlMatcher',
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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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$invalid = array();
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foreach ($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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* @param string $key The key
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* @param mixed $value The value
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*
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* @throws \InvalidArgumentException
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*/
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public function setOption($key, $value)
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{
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if (!array_key_exists($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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* @param string $key The key
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*
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* @return mixed The value
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*
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* @throws \InvalidArgumentException
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*/
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public function getOption($key)
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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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* {@inheritdoc}
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*/
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public function getRouteCollection()
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{
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if (null === $this->collection) {
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$this->collection = $this->loader->load($this->resource, $this->options['resource_type']);
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}
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return $this->collection;
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}
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/**
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* {@inheritdoc}
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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 (null !== $this->matcher) {
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$this->getMatcher()->setContext($context);
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}
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if (null !== $this->generator) {
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$this->getGenerator()->setContext($context);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getContext()
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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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public function setConfigCacheFactory(ConfigCacheFactoryInterface $configCacheFactory)
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{
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$this->configCacheFactory = $configCacheFactory;
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}
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/**
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* {@inheritdoc}
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*/
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public function generate($name, $parameters = array(), $referenceType = self::ABSOLUTE_PATH)
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{
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return $this->getGenerator()->generate($name, $parameters, $referenceType);
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}
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/**
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* {@inheritdoc}
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*/
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public function match($pathinfo)
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{
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return $this->getMatcher()->match($pathinfo);
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}
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/**
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* {@inheritdoc}
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*/
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public function matchRequest(Request $request)
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{
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$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 instance associated with this Router.
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*
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* @return UrlMatcherInterface A UrlMatcherInterface instance
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*/
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public function getMatcher()
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{
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if (null !== $this->matcher) {
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return $this->matcher;
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}
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if (null === $this->options['cache_dir'] || null === $this->options['matcher_cache_class']) {
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$this->matcher = new $this->options['matcher_class']($this->getRouteCollection(), $this->context);
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if (method_exists($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'].'/'.$this->options['matcher_cache_class'].'.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($provider);
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}
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}
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$options = array(
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'class' => $this->options['matcher_cache_class'],
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'base_class' => $this->options['matcher_base_class'],
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);
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$cache->write($dumper->dump($options), $this->getRouteCollection()->getResources());
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}
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);
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if (!class_exists($this->options['matcher_cache_class'], false)) {
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require_once $cache->getPath();
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}
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return $this->matcher = new $this->options['matcher_cache_class']($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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* @return UrlGeneratorInterface A UrlGeneratorInterface instance
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*/
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public function getGenerator()
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{
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if (null !== $this->generator) {
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return $this->generator;
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}
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if (null === $this->options['cache_dir'] || null === $this->options['generator_cache_class']) {
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$this->generator = new $this->options['generator_class']($this->getRouteCollection(), $this->context, $this->logger);
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} else {
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$cache = $this->getConfigCacheFactory()->cache($this->options['cache_dir'].'/'.$this->options['generator_cache_class'].'.php',
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function (ConfigCacheInterface $cache) {
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$dumper = $this->getGeneratorDumperInstance();
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$options = array(
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'class' => $this->options['generator_cache_class'],
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'base_class' => $this->options['generator_base_class'],
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);
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$cache->write($dumper->dump($options), $this->getRouteCollection()->getResources());
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}
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);
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if (!class_exists($this->options['generator_cache_class'], false)) {
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require_once $cache->getPath();
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}
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$this->generator = new $this->options['generator_cache_class']($this->context, $this->logger);
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}
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if ($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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public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
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{
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$this->expressionLanguageProviders[] = $provider;
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}
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/**
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* @return GeneratorDumperInterface
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*/
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protected function getGeneratorDumperInstance()
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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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/**
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* @return MatcherDumperInterface
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*/
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protected function getMatcherDumperInstance()
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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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* @return ConfigCacheFactoryInterface $configCacheFactory
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*/
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private function getConfigCacheFactory()
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{
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if (null === $this->configCacheFactory) {
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$this->configCacheFactory = new ConfigCacheFactory($this->options['debug']);
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}
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return $this->configCacheFactory;
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}
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}
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