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<?php |
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/* |
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* |
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* (c) Yaroslav Honcharuk <[email protected]> |
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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 Yarhon\RouteGuardBundle\Routing; |
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use Psr\Cache\CacheItemPoolInterface; |
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface; |
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use Symfony\Component\HttpFoundation\ParameterBag; |
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use Symfony\Component\Routing\RequestContext; |
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use Yarhon\RouteGuardBundle\Cache\CacheFactory; |
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use Yarhon\RouteGuardBundle\Exception\RuntimeException; |
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/** |
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* @author Yaroslav Honcharuk <[email protected]> |
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*/ |
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class RequestAttributesFactory implements RequestAttributesFactoryInterface |
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{ |
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/** |
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* @var CacheItemPoolInterface |
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*/ |
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private $routeMetadataCache; |
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/** |
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* @var RequestContext |
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*/ |
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private $generatorContext; |
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/** |
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* @var array |
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*/ |
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private $internalCache = []; |
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/** |
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* @param CacheItemPoolInterface $routeMetadataCache |
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* @param UrlGeneratorInterface $urlGenerator |
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*/ |
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public function __construct(CacheItemPoolInterface $routeMetadataCache, UrlGeneratorInterface $urlGenerator) |
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{ |
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$this->routeMetadataCache = $routeMetadataCache; |
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$this->generatorContext = $urlGenerator->getContext(); |
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} |
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/** |
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* @see \Symfony\Component\Routing\Matcher\UrlMatcher::getAttributes |
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* @see \Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelRequest |
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* |
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* {@inheritdoc} |
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*/ |
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public function createAttributes(RouteContextInterface $routeContext) |
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{ |
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$cacheKey = spl_object_hash($routeContext); |
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if (isset($this->internalCache[$cacheKey])) { |
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return $this->internalCache[$cacheKey]; |
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} |
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$routeMetadata = $this->getRouteMetadata($routeContext->getName()); |
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$parameters = $routeContext->getParameters(); |
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$defaults = $routeMetadata->getDefaults(); |
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// Special default parameters returned (if present): _format, _fragment, _locale |
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// See \Symfony\Component\Routing\Matcher\UrlMatcher::mergeDefaults |
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foreach ($parameters as $key => $value) { |
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if (is_int($key) || null === $value) { |
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unset($parameters[$key]); |
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} |
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} |
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$variables = array_flip($routeMetadata->getVariables()); |
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$parameters = array_replace($this->generatorContext->getParameters(), $parameters); |
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// We should add only parameters being used as route variables, others wouldn't be presented in generated url, |
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// and therefore wouldn't be returned by the UrlMatcher as request attributes. |
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$parameters = array_intersect_key($parameters, $variables); |
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$attributes = array_replace($defaults, $parameters); |
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if ($diff = array_diff_key($variables, $attributes)) { |
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$missing = implode('", "', array_keys($diff)); |
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throw new RuntimeException(sprintf('Some mandatory parameters are missing ("%s") to get attributes for route.', $missing)); |
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} |
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return $this->internalCache[$cacheKey] = new ParameterBag($attributes); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getAttributeNames(RouteMetadata $routeMetadata) |
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{ |
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$names = array_merge($routeMetadata->getVariables(), array_keys($routeMetadata->getDefaults())); |
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$names = array_unique($names); |
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return $names; |
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} |
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/** |
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* @param string $routeName |
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* |
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* @return RouteMetadata |
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* |
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* @throws RuntimeException |
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*/ |
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private function getRouteMetadata($routeName) |
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{ |
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$cacheKey = CacheFactory::getValidCacheKey($routeName); |
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$cacheItem = $this->routeMetadataCache->getItem($cacheKey); |
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if (!$cacheItem->isHit()) { |
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throw new RuntimeException(sprintf('Cannot get RouteMetadata for route "%s".', $routeName)); |
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} |
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return $cacheItem->get(); |
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} |
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} |
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yarhon /
RouteGuardBundle
