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<?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\HttpKernel\Event;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpKernel\HttpKernelInterface;
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/**
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* Allows filtering of a controller callable.
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*
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* You can call getController() to retrieve the current controller. With
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* setController() you can set a new controller that is used in the processing
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* of the request.
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*
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* Controllers should be callables.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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final class ControllerEvent extends KernelEvent
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{
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private string|array|object $controller;
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private \ReflectionFunctionAbstract $controllerReflector;
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private array $attributes;
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public function __construct(HttpKernelInterface $kernel, callable $controller, Request $request, ?int $requestType)
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{
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parent::__construct($kernel, $request, $requestType);
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$this->setController($controller);
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}
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public function getController(): callable
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{
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return $this->controller;
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}
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public function getControllerReflector(): \ReflectionFunctionAbstract
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{
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return $this->controllerReflector;
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}
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/**
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* @param array<class-string, list<object>>|null $attributes
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*/
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public function setController(callable $controller, array $attributes = null): void
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{
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if (null !== $attributes) {
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$this->attributes = $attributes;
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}
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if (isset($this->controller) && ($controller instanceof \Closure ? $controller == $this->controller : $controller === $this->controller)) {
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$this->controller = $controller;
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return;
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}
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if (null === $attributes) {
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unset($this->attributes);
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}
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if (\is_array($controller) && method_exists(...$controller)) {
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$this->controllerReflector = new \ReflectionMethod(...$controller);
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} elseif (\is_string($controller) && false !== $i = strpos($controller, '::')) {
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$this->controllerReflector = new \ReflectionMethod($controller);
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} else {
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$this->controllerReflector = new \ReflectionFunction($controller(...));
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}
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$this->controller = $controller;
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}
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/**
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* @return array<class-string, list<object>>
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*/
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public function getAttributes(): array
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{
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if (isset($this->attributes)) {
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return $this->attributes;
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}
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if (\is_array($this->controller) && method_exists(...$this->controller)) {
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$class = new \ReflectionClass($this->controller[0]);
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} elseif (\is_string($this->controller) && false !== $i = strpos($this->controller, '::')) {
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$class = new \ReflectionClass(substr($this->controller, 0, $i));
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} else {
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$class = str_contains($this->controllerReflector->name, '{closure}') ? null : (\PHP_VERSION_ID >= 80111 ? $this->controllerReflector->getClosureCalledClass() : $this->controllerReflector->getClosureScopeClass());
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}
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$this->attributes = [];
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foreach (array_merge($class?->getAttributes() ?? [], $this->controllerReflector->getAttributes()) as $attribute) {
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if (class_exists($attribute->getName())) {
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$this->attributes[$attribute->getName()][] = $attribute->newInstance();
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}
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}
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return $this->attributes;
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}
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}
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