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<?php namespace Comodojo\Dispatcher; |
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use \Comodojo\Dispatcher\Components\AbstractModel; |
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use \Comodojo\Dispatcher\Components\DefaultConfiguration; |
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use \Comodojo\Dispatcher\Cache\ServerCache; |
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use \Comodojo\Dispatcher\Request\Model as Request; |
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use \Comodojo\Dispatcher\Router\Model as Router; |
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use \Comodojo\Dispatcher\Response\Model as Response; |
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use \Comodojo\Dispatcher\Extra\Model as Extra; |
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use \Comodojo\Dispatcher\Output\Processor; |
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use \Comodojo\Dispatcher\Events\DispatcherEvent; |
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use \Comodojo\Dispatcher\Events\ServiceEvent; |
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use \Comodojo\Dispatcher\Traits\CacheTrait; |
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use \Comodojo\Dispatcher\Traits\RequestTrait; |
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use \Comodojo\Dispatcher\Traits\ResponseTrait; |
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use \Comodojo\Dispatcher\Traits\RouterTrait; |
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use \Comodojo\Dispatcher\Traits\ExtraTrait; |
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use \Comodojo\Dispatcher\Traits\EventsTrait; |
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use \Comodojo\Foundation\Base\Configuration; |
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use \Comodojo\Foundation\Timing\TimingTrait; |
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use \Comodojo\Foundation\Events\Manager as EventsManager; |
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use \Comodojo\Foundation\Logging\Manager as LogManager; |
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use \Comodojo\SimpleCache\Manager as SimpleCacheManager; |
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use \Psr\Log\LoggerInterface; |
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use \Comodojo\Exception\DispatcherException; |
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use \Exception; |
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/** |
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* @package Comodojo Dispatcher |
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* @author Marco Giovinazzi <[email protected]> |
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* @author Marco Castiello <[email protected]> |
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* @license GPL-3.0+ |
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* |
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* LICENSE: |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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class Dispatcher extends AbstractModel { |
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use TimingTrait; |
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use CacheTrait; |
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use RequestTrait; |
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use ResponseTrait; |
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use RouterTrait; |
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use ExtraTrait; |
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use EventsTrait; |
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protected $route; |
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/** |
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* The main dispatcher constructor. |
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* |
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*/ |
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public function __construct( |
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array $configuration = [], |
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EventsManager $events = null, |
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SimpleCacheManager $cache = null, |
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LoggerInterface $logger = null |
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) { |
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// starting output buffer |
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ob_start(); |
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// fix current timestamp |
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$this->setTiming(); |
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// init core components |
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// create new configuration object and merge configuration |
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$configuration_object = new Configuration( DefaultConfiguration::get() ); |
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$configuration_object->merge($configuration); |
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$logger = is_null($logger) ? LogManager::createFromConfiguration($configuration_object)->getLogger() : $logger; |
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parent::__construct($configuration_object, $logger); |
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$this->logger->debug("--------------------------------------------------------"); |
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$this->logger->debug("Dispatcher run-cycle starts at ".$this->getTime()->format('c')); |
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try { |
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// init other components |
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$this->setEvents(is_null($events) ? EventsManager::create($this->logger) : $events); |
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$this->setCache(is_null($cache) ? SimpleCacheManager::createFromConfiguration($this->configuration, $this->logger) : $cache); |
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// init models |
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$this->setExtra(new Extra($this->logger)); |
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$this->setRequest(new Request($this->configuration, $this->logger)); |
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$this->setRouter(new Router($this->configuration, $this->logger, $this->cache, $this->events, $this->extra)); |
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$this->setResponse(new Response($this->configuration, $this->logger)); |
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} catch (Exception $e) { |
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$this->logger->critical($e->getMessage(),$e->getTrace()); |
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throw $e; |
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} |
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// we're ready! |
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$this->logger->debug("Dispatcher ready"); |
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} |
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public function dispatch() { |
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$logger = $this->getLogger(); |
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$configuration = $this->getConfiguration(); |
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$events = $this->getEvents(); |
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$logger->debug("Starting to dispatch."); |
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$logger->debug("Emitting global dispatcher event."); |
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$events->emit( new DispatcherEvent($this) ); |
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if ( $configuration->get('enabled') === false ) { |
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$logger->debug("Dispatcher disabled, shutting down gracefully."); |
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$status = $configuration->get('disabled-status'); |
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$content = $configuration->get('disabled-message'); |
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$this->getResponse()->getStatus()->set($status); |
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$this->getResponse()->getContent()->set($content); |
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return $this->shutdown(); |
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} |
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$cache = new ServerCache($this->getCache()); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.request') ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.request.'.$this->request->method->get()) ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.request.#') ); |
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if ( $cache->read($this->request, $this->response) ) { |
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// we have a cache! |
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// shutdown immediately |
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return $this->shutdown(); |
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} |
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$logger->debug("Starting router"); |
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try { |
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$this->route = $this->getRouter()->route($this->request); |
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} catch (DispatcherException $de) { |
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$logger->debug("Route error (".$de->getStatus()."), shutting down dispatcher"); |
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$this->processDispatcherException($de); |
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return $this->shutdown(); |
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} |
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$route_type = $this->route->getType(); |
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$route_service = $this->route->getServiceName(); |
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$logger->debug("Route acquired, type $route_type directed to $route_service"); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.route') ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.route.'.$route_type) ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.route.'.$route_service) ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.route.#') ); |
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// translate route to service |
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$logger->debug("Running $route_service service"); |
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try { |
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$this->router->compose($this->response); |
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} catch (DispatcherException $de) { |
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$logger->debug("Service exception (".$de->getStatus()."), shutting down dispatcher"); |
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$this->processDispatcherException($de); |
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} |
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$this->processConfigurationParameters($this->route); |
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$cache->dump($this->request, $this->response, $this->route); |
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return $this->shutdown(); |
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} |
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private function processConfigurationParameters($route) { |
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$params = $route->getParameter('headers'); |
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if ( !empty($params) && is_array($params) ) { |
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foreach($params as $name => $value) $this->getResponse()->getHeaders()->set($name, $value); |
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} |
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} |
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private function createServiceSpecializedEvents($name) { |
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$this->logger->debug("Emitting $name service-event"); |
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return new ServiceEvent( |
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$name, |
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$this->getConfiguration(), |
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$this->getLogger(), |
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$this->getCache(), |
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$this->getEvents(), |
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$this->getRequest(), |
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$this->getRouter(), |
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$this->getResponse(), |
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$this->getExtra() |
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); |
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} |
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private function processDispatcherException(DispatcherException $de) { |
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$status = $de->getStatus(); |
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$message = $de->getMessage(); |
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$headers = $de->getHeaders(); |
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$response = $this->getResponse(); |
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$response->getStatus()->set($status); |
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$response->getContent()->set($message); |
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$response->getHeaders()->merge($headers); |
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} |
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private function shutdown() { |
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$events = $this->getEvents(); |
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$request = $this->getRequest(); |
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$response = $this->getResponse(); |
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$response->consolidate($request, $this->route); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.response') ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.response.' . $response->getStatus()->get()) ); |
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$events->emit( $this->createServiceSpecializedEvents('dispatcher.response.#') ); |
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$this->logger->debug("Composing return value"); |
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$return = Processor::parse($this->getConfiguration(), $this->logger, $request, $response); |
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$this->logger->debug("Dispatcher run-cycle ends"); |
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// This could cause WSOD with some PHP-FPM configurations |
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// if ( function_exists('fastcgi_finish_request') ) fastcgi_finish_request(); |
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// else ob_end_clean(); |
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ob_end_clean(); |
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return $return; |
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} |
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} |
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This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.
In this case you can add the
@ignore
PhpDoc annotation to the duplicate definition and it will be ignored.