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<?php |
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namespace League\Route; |
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use FastRoute\Dispatcher as FastRoute; |
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use FastRoute\Dispatcher\GroupCountBased as GroupCountBasedDispatcher; |
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use League\Route\Http\Exception\MethodNotAllowedException; |
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use League\Route\Http\Exception\NotFoundException; |
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use League\Route\Middleware\ExecutionChain; |
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use League\Route\Strategy\JsonStrategy; |
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use League\Route\Strategy\StrategyAwareInterface; |
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use League\Route\Strategy\StrategyAwareTrait; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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class Dispatcher extends GroupCountBasedDispatcher implements StrategyAwareInterface |
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{ |
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use StrategyAwareTrait; |
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/** |
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* Match and dispatch a route matching the given http method and |
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* uri, retruning an execution chain. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request |
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* |
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* @return \League\Route\Middleware\ExecutionChain |
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*/ |
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public function handle(ServerRequestInterface $request) |
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{ |
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$match = $this->dispatch( |
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$request->getMethod(), |
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$request->getUri()->getPath() |
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); |
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if ($match[0] === FastRoute::NOT_FOUND) { |
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return $this->handleNotFound(); |
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} |
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if ($match[0] === FastRoute::METHOD_NOT_ALLOWED) { |
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$allowed = (array) $match[1]; |
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return $this->handleNotAllowed($allowed); |
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} |
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return $this->handleFound($match[1], (array) $match[2]); |
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} |
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/** |
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* Handle dispatching of a found route. |
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* |
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* @param callable $route |
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* @param array $vars |
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* |
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* @return \League\Route\Middleware\ExecutionChain |
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*/ |
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protected function handleFound(callable $route, array $vars) |
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{ |
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return call_user_func_array($route, [$vars]); |
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} |
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/** |
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* Handle a not found route. |
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* |
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* @return \League\Route\Middleware\ExecutionChain |
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*/ |
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protected function handleNotFound() |
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{ |
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$middleware = function (ServerRequestInterface $request, ResponseInterface $response) { |
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$exception = new NotFoundException; |
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if ($this->getStrategy() instanceof JsonStrategy) { |
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return $exception->buildJsonResponse($response); |
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} |
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throw $exception; |
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}; |
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return (new ExecutionChain)->middleware($middleware); |
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} |
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/** |
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* Handles a not allowed route. |
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* |
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* @param array $allowed |
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* |
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* @return \League\Route\Middleware\ExecutionChain |
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*/ |
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protected function handleNotAllowed(array $allowed) |
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{ |
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$middleware = function (ServerRequestInterface $request, ResponseInterface $response) use ($allowed) { |
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$exception = new MethodNotAllowedException($allowed); |
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if ($this->getStrategy() instanceof JsonStrategy) { |
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return $exception->buildJsonResponse($response); |
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} |
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throw $exception; |
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}; |
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return (new ExecutionChain)->middleware($middleware); |
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} |
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} |
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thephpleague /
route
