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<?php |
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/** |
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* Web dispatcher |
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* User: moyo |
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* Date: 2018/5/29 |
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* Time: 12:12 PM |
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*/ |
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namespace Carno\Web; |
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use function Carno\Coroutine\ctx; |
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use Carno\HTTP\Standard\Response; |
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use Carno\HTTP\Standard\ServerRequest; |
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use Carno\Web\Chips\Dispatcher\Executor; |
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use Carno\Web\Chips\Dispatcher\Policing; |
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use Carno\Web\Chips\Dispatcher\Responsive; |
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use Carno\Web\Exception\InternalServerException; |
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use Carno\Web\Exception\MethodNotAllowedException; |
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use Carno\Web\Exception\RouterNotFoundException; |
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use FastRoute\Dispatcher as FRDispatcher; |
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use Throwable; |
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class Dispatcher |
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{ |
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use Policing, Executor, Responsive; |
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/** |
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* @var FRDispatcher |
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*/ |
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private $router = null; |
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/** |
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* @param FRDispatcher $dispatcher |
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*/ |
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public function dispatched(FRDispatcher $dispatcher) : void |
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{ |
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$this->router = $dispatcher; |
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} |
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/** |
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* @param ServerRequest $sr |
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* @return Response |
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* @throws Throwable |
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*/ |
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public function invoke(ServerRequest $sr) |
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{ |
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$routed = $this->router->dispatch($sr->getMethod(), $sr->getUri()->getPath()); |
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$ctx = yield ctx(); |
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if ($this->policy |
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&& $response = $this->policy->request( |
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$ctx, |
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$sr, |
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$routed[0], |
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$routed[0] === FRDispatcher::FOUND ? $routed[1] : null, |
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$routed[0] === FRDispatcher::FOUND ? $routed[2] : [] |
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) |
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) { |
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return $response; |
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} |
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switch ($routed[0]) { |
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case FRDispatcher::FOUND: |
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$respond = $this->responding( |
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$sr, |
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...(yield $this->calling($ctx, $sr, $routed[1], $routed[2])) |
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); |
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return $this->policy ? $this->policy->response($sr, $respond) : $respond; |
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case FRDispatcher::NOT_FOUND: |
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throw new RouterNotFoundException; |
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case FRDispatcher::METHOD_NOT_ALLOWED: |
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throw new MethodNotAllowedException; |
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default: |
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throw new InternalServerException('Routing failed'); |
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} |
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} |
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} |
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