Code Coverage for /Users/ericduran/Sites/drupal/drupal/core/lib/Drupal/Core/Cache/Context/HeadersCacheContext.php

1	<?php
2
3	/**
4	* @file
5	* Contains \Drupal\Core\Cache\Context\HeadersCacheContext.
6	*/
7
8	namespace Drupal\Core\Cache\Context;
9
10	use Drupal\Core\Cache\CacheableMetadata;
11
12	/**
13	* Defines the HeadersCacheContext service, for "per header" caching.
14	*
15	* Cache context ID: 'headers' (to vary by all headers).
16	* Calculated cache context ID: 'headers:%name', e.g. 'headers:X-Something' (to
17	* vary by the 'X-Something' header).
18	*/
19	class HeadersCacheContext extends RequestStackCacheContextBase implements CalculatedCacheContextInterface {
20
21	/**
22	* {@inheritdoc}
23	*/
24	public static function getLabel() {
25	return t('HTTP headers');
26	}
27
28	/**
29	* {@inheritdoc}
30	*/
31	public function getContext($header = NULL) {
32	if ($header === NULL) {
33	return $this->requestStack->getCurrentRequest()->headers->all();
34	}
35	else {
36	return $this->requestStack->getCurrentRequest()->headers->get($header);
37	}
38	}
39
40	/**
41	* {@inheritdoc}
42	*/
43	public function getCacheableMetadata($header = NULL) {
44	return new CacheableMetadata();
45	}
46
47	}