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lib: Respect Cache-Control: no-cache 

fixes #9688
This commit is contained in:
Eric Lippmann 2015-09-28 15:59:11 +02:00
parent 0dc6925561
commit c3b085cf7f
1 changed files with 5 additions and 1 deletions
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6
library/Icinga/Web/FileCache.php
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@ -1,5 +1,6 @@
<?php
/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Web;
class FileCache
@ -191,7 +192,7 @@ class FileCache
* Whether the given ETag matchesspecific file(s) on disk
*
* If no ETag is given we'll try to fetch the one from the current
* HTTP request.
* HTTP request. Respects HTTP Cache-Control: no-cache, if set.
*
* @param string|array $files file(s) to check
* @param string $match ETag to match against
@ -208,6 +209,9 @@ class FileCache
if (! $match) {
return false;
}
if (isset($_SERVER['HTTP_CACHE_CONTROL']) && $_SERVER['HTTP_CACHE_CONTROL'] === 'no-cache') {
return false;
}
$etag = self::etagForFiles($files);
return $match === $etag ? $etag : false;