Move some functions from file_mod to file controller

Models shouldn't really call views

Signed-off-by: Florian Pritz <bluewind@xinu.at>

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: