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79da71ecf8
* symfony 5.4 (diff dev) * symfony 5.4 (working) * symfony 5.4 (update autoload) * symfony 5.4 (remove swiftmailer mailer implementation) * symfony 5.4 (php doc and split Global accessor class) ### Impacted packages: composer require php:">=7.2.5 <8.0.0" symfony/console:5.4.* symfony/dotenv:5.4.* symfony/framework-bundle:5.4.* symfony/twig-bundle:5.4.* symfony/yaml:5.4.* --update-with-dependencies composer require symfony/stopwatch:5.4.* symfony/web-profiler-bundle:5.4.* --dev --update-with-dependencies
92 lines
3.4 KiB
PHP
92 lines
3.4 KiB
PHP
<?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\Debug;
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use Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher as BaseTraceableEventDispatcher;
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use Symfony\Component\HttpKernel\KernelEvents;
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/**
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* Collects some data about event listeners.
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*
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* This event dispatcher delegates the dispatching to another one.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class TraceableEventDispatcher extends BaseTraceableEventDispatcher
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{
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/**
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* {@inheritdoc}
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*/
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protected function beforeDispatch(string $eventName, object $event)
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{
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switch ($eventName) {
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case KernelEvents::REQUEST:
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$event->getRequest()->attributes->set('_stopwatch_token', substr(hash('sha256', uniqid(mt_rand(), true)), 0, 6));
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$this->stopwatch->openSection();
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break;
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case KernelEvents::VIEW:
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case KernelEvents::RESPONSE:
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// stop only if a controller has been executed
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if ($this->stopwatch->isStarted('controller')) {
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$this->stopwatch->stop('controller');
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}
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break;
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case KernelEvents::TERMINATE:
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$sectionId = $event->getRequest()->attributes->get('_stopwatch_token');
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if (null === $sectionId) {
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break;
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}
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// There is a very special case when using built-in AppCache class as kernel wrapper, in the case
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// of an ESI request leading to a `stale` response [B] inside a `fresh` cached response [A].
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// In this case, `$token` contains the [B] debug token, but the open `stopwatch` section ID
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// is equal to the [A] debug token. Trying to reopen section with the [B] token throws an exception
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// which must be caught.
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try {
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$this->stopwatch->openSection($sectionId);
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} catch (\LogicException $e) {
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}
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break;
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected function afterDispatch(string $eventName, object $event)
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{
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switch ($eventName) {
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case KernelEvents::CONTROLLER_ARGUMENTS:
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$this->stopwatch->start('controller', 'section');
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break;
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case KernelEvents::RESPONSE:
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$sectionId = $event->getRequest()->attributes->get('_stopwatch_token');
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if (null === $sectionId) {
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break;
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}
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$this->stopwatch->stopSection($sectionId);
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break;
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case KernelEvents::TERMINATE:
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// In the special case described in the `preDispatch` method above, the `$token` section
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// does not exist, then closing it throws an exception which must be caught.
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$sectionId = $event->getRequest()->attributes->get('_stopwatch_token');
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if (null === $sectionId) {
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break;
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}
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try {
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$this->stopwatch->stopSection($sectionId);
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} catch (\LogicException $e) {
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}
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break;
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}
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}
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}
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