Version 1

[yaffs-website] / web / core / modules / big_pipe / tests / modules / big_pipe_test / src / EventSubscriber / BigPipeTestSubscriber.php

diff --git a/web/core/modules/big_pipe/tests/modules/big_pipe_test/src/EventSubscriber/BigPipeTestSubscriber.php b/web/core/modules/big_pipe/tests/modules/big_pipe_test/src/EventSubscriber/BigPipeTestSubscriber.php
new file mode 100644 (file)
index 0000000..8a3e1f2
--- /dev/null
+++ b/web/core/modules/big_pipe/tests/modules/big_pipe_test/src/EventSubscriber/BigPipeTestSubscriber.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace Drupal\big_pipe_test\EventSubscriber;
+
+use Drupal\Core\Render\AttachmentsInterface;
+use Drupal\Core\Render\HtmlResponse;
+use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+class BigPipeTestSubscriber implements EventSubscriberInterface {
+
+  /**
+   * @see \Drupal\big_pipe_test\BigPipeTestController::responseException()
+   *
+   * @var string
+   */
+  const CONTENT_TRIGGER_EXCEPTION = 'NOPE!NOPE!NOPE!';
+
+  /**
+   * Triggers exception for embedded HTML/AJAX responses with certain content.
+   *
+   * @see \Drupal\big_pipe_test\BigPipeTestController::responseException()
+   *
+   * @param \Symfony\Component\HttpKernel\Event\FilterResponseEvent $event
+   *   The event to process.
+   *
+   * @throws \Exception
+   */
+  public function onRespondTriggerException(FilterResponseEvent $event) {
+    $response = $event->getResponse();
+
+    if (!$response instanceof AttachmentsInterface) {
+      return;
+    }
+
+    $attachments = $response->getAttachments();
+    if (!isset($attachments['big_pipe_placeholders']) && !isset($attachments['big_pipe_nojs_placeholders'])) {
+      if (strpos($response->getContent(), static::CONTENT_TRIGGER_EXCEPTION) !== FALSE) {
+        throw new \Exception('Oh noes!');
+      }
+    }
+  }
+
+  /**
+   * Exposes all BigPipe placeholders (JS and no-JS) via headers for testing.
+   *
+   * @param \Symfony\Component\HttpKernel\Event\FilterResponseEvent $event
+   *   The event to process.
+   */
+  public function onRespondSetBigPipeDebugPlaceholderHeaders(FilterResponseEvent $event) {
+    $response = $event->getResponse();
+    if (!$response instanceof HtmlResponse) {
+      return;
+    }
+
+    $attachments = $response->getAttachments();
+
+    $response->headers->set('BigPipe-Test-Placeholders', '<none>');
+    $response->headers->set('BigPipe-Test-No-Js-Placeholders', '<none>');
+
+    if (!empty($attachments['big_pipe_placeholders'])) {
+      $response->headers->set('BigPipe-Test-Placeholders', implode(' ', array_keys($attachments['big_pipe_placeholders'])));
+    }
+
+    if (!empty($attachments['big_pipe_nojs_placeholders'])) {
+      $response->headers->set('BigPipe-Test-No-Js-Placeholders', implode(' ', array_map('rawurlencode', array_keys($attachments['big_pipe_nojs_placeholders']))));
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    // Run just before \Drupal\big_pipe\EventSubscriber\HtmlResponseBigPipeSubscriber::onRespond().
+    $events[KernelEvents::RESPONSE][] = ['onRespondSetBigPipeDebugPlaceholderHeaders', -9999];
+
+    // Run just after \Drupal\big_pipe\EventSubscriber\HtmlResponseBigPipeSubscriber::onRespond().
+    $events[KernelEvents::RESPONSE][] = ['onRespondTriggerException', -10001];
+
+    return $events;
+  }
+
+}