app/Service/EventSubscriber/MainRequestProfileSubscriber.php line 46

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  1. <?php
  3. namespace Sq\Service\EventSubscriber;
  5. use Sq\Entity\Profiler\Profile;
  6. use Sq\Event\Kernel\InitialiseContainerEvent;
  7. use Sq\Service\Profiler\ProfilerInterface;
  8. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  9. use Symfony\Component\HttpKernel\Event;
  10. use Symfony\Component\HttpKernel\KernelEvents;
  12. class MainRequestProfileSubscriber implements EventSubscriberInterface
  13. {
  14.     /** @var \Sq\Service\Profiler\ProfilerInterface */
  15.     private $profiler;
  17.     /** @var \Sq\Entity\Profiler\ProfileInterface */
  18.     private $mainProfile;
  20.     /**
  21.      * @param \Sq\Service\Profiler\ProfilerInterface $profiler
  22.      */
  23.     public function __construct(ProfilerInterface $profiler)
  24.     {
  25.         $this->profiler = $profiler;
  26.     }
  28.     /** @inheritDoc */
  29.     public static function getSubscribedEvents()
  30.     {
  31.         return [
  32.             InitialiseContainerEvent::class => ['onInitializeContainer'],
  33.             // For the request and controller events, set the priority really low so that they are executed after the
  34.             // route and controller information has been calculated by first-party Symfony event listeners/subscribers.
  35.             KernelEvents::REQUEST => ['onRequest', -64],
  36.             KernelEvents::CONTROLLER => ['onController', -64],
  37.             KernelEvents::TERMINATE => ['onTerminate'],
  38.         ];
  39.     }
  41.     /**
  42.      * Start profiling the "main" application as soon as the container has been initialized.
  43.      *
  44.      * @param \Sq\Event\Kernel\InitialiseContainerEvent $event
  45.      */
  46.     public function onInitializeContainer(InitialiseContainerEvent $event): void
  47.     {
  48.         $this->mainProfile = $this->profiler->start('main');
  49.     }
  51.     /**
  52.      * When the route has been determined, add that and information about the request to the main profile.
  53.      *
  54.      * @param \Symfony\Component\HttpKernel\Event\RequestEvent $event
  55.      */
  56.     public function onRequest(Event\RequestEvent $event): void
  57.     {
  58.         if ($this->mainProfile !== null)
  59.         {
  60.             $request = $event->getRequest();
  61.             $clientFrontendVersion = $request->headers->get('Client-Frontend-Version');
  62.             $this->mainProfile instanceof Profile && $this->mainProfile->setRequest($request);
  63.             $httpRequestStart = $request->headers->get('X-Request-Start');
  64.             $phpRequestStartMs = $request->attributes->get('request_start_ms');
  65.             $this->mainProfile->addDataField('request_method', $request->getMethod());
  66.             $this->mainProfile->addDataField('request_uri', $request->getPathInfo());
  67.             $this->mainProfile->addDataField('query_string', $request->getQueryString() ?? "");
  68.             $this->mainProfile->addDataField('route_name', $request->attributes->get('_route', ''));
  69.             $this->mainProfile->addDataField('route_params', json_encode($request->attributes->get('_route_params', [])));
  70.             if (is_string($clientFrontendVersion) && $clientFrontendVersion !== '')
  71.             {
  72.                 $this->mainProfile->addDataField('client_frontend_version', $clientFrontendVersion);
  73.             }
  75.             if (is_string($httpRequestStart) && preg_match('/^t=(\d+)$/', $httpRequestStart, $httpRequestStartMatches) === 1)
  76.             {
  77.                 $this->mainProfile->addDataField('http_request_start_ms', (int) round(((int) $httpRequestStartMatches[1]) / 1000));
  78.             }
  80.             if (is_numeric($phpRequestStartMs))
  81.             {
  82.                 $this->mainProfile->addDataField('php_request_start_ms', (int) $phpRequestStartMs);
  83.             }
  85.             if (isset($httpRequestStartMatches[1]) && is_numeric($phpRequestStartMs))
  86.             {
  87.                 $this->mainProfile->addDataField(
  88.                     'php_request_start_delay_ms',
  89.                     max(0, (int) $phpRequestStartMs - (int) round(((int) $httpRequestStartMatches[1]) / 1000))
  90.                 );
  91.             }
  92.         }
  93.     }
  95.     /**
  96.      * When the controller has been determined, add that information to the main profile.
  97.      *
  98.      * @param \Symfony\Component\HttpKernel\Event\ControllerEvent $event
  99.      */
  100.     public function onController(Event\ControllerEvent $event): void
  101.     {
  102.         if ($this->mainProfile !== null)
  103.         {
  104.             $request = $event->getRequest();
  105.             $this->mainProfile->addDataField('controller', $request->attributes->get('_controller', ''));
  106.         }
  107.     }
  109.     /**
  110.      * Stop profiling when the kernel terminates, instead of when the PHP script ends, for accuracy.
  111.      *
  112.      * @param \Symfony\Component\HttpKernel\Event\TerminateEvent $event
  113.      */
  114.     public function onTerminate(Event\TerminateEvent $event): void
  115.     {
  116.         if ($this->mainProfile !== null)
  117.         {
  118.             $this->mainProfile->stop();
  119.         }
  120.     }
  121. }