diff options
Diffstat (limited to 'mod/photo.php')
| -rw-r--r-- | mod/photo.php | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/mod/photo.php b/mod/photo.php index 8cb82e8ff..66280cb76 100644 --- a/mod/photo.php +++ b/mod/photo.php @@ -224,9 +224,21 @@ function photo_init(&$a) { } else { - - header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT"); - header("Cache-Control: max-age=" . (3600*24)); + // The photo cache default is 1 day to provide a privacy trade-off, + // as somebody reducing photo permissions on a photo that is already + // "in the wild" won't be able to stop the photo from being viewed + // for this amount amount of time once it is in the browser cache. + // The privacy expectations of your site members and their perception + // of privacy where it affects the entire project may be affected. + // This has performance considerations but we highly recommend you + // leave it alone. + + $cache = get_config('system','photo_cache_time'); + if(! $cache) + $cache = (3600 * 24); // 1 day + + header("Expires: " . gmdate("D, d M Y H:i:s", time() + $cache) . " GMT"); + header("Cache-Control: max-age=" . $cache); } echo $data; |