diff options
Diffstat (limited to 'application/helpers')
| -rw-r--r-- | application/helpers/filebin_helper.php | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/application/helpers/filebin_helper.php b/application/helpers/filebin_helper.php index d9a490bd6..f6663144e 100644 --- a/application/helpers/filebin_helper.php +++ b/application/helpers/filebin_helper.php @@ -221,4 +221,26 @@ function link_with_mtime($file) return $link; } +function handle_etag($etag) +{ + $etag = strtolower($etag); + $modified = true; + + if(isset($_SERVER['HTTP_IF_NONE_MATCH'])) { + $oldtag = trim(strtolower($_SERVER['HTTP_IF_NONE_MATCH']), '"'); + if($oldtag == $etag) { + $modified = false; + } else { + $modified = true; + } + } + + header('Etag: "'.$etag.'"'); + + if (!$modified) { + header("HTTP/1.1 304 Not Modified"); + exit(); + } +} + # vim: set noet: |