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Diffstat (limited to 'mod/groups/icon.php')
-rw-r--r--mod/groups/icon.php14
1 files changed, 10 insertions, 4 deletions
diff --git a/mod/groups/icon.php b/mod/groups/icon.php
index 104da4b41..ebdc1eb6d 100644
--- a/mod/groups/icon.php
+++ b/mod/groups/icon.php
@@ -8,11 +8,17 @@
require_once(dirname(dirname(dirname(__FILE__))) . "/engine/start.php");
$group_guid = get_input('group_guid');
+
+/* @var ElggGroup $group */
$group = get_entity($group_guid);
+if (!($group instanceof ElggGroup)) {
+ header("HTTP/1.1 404 Not Found");
+ exit;
+}
// If is the same ETag, content didn't changed.
$etag = $group->icontime . $group_guid;
-if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag) {
+if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && trim($_SERVER['HTTP_IF_NONE_MATCH']) == "\"$etag\"") {
header("HTTP/1.1 304 Not Modified");
exit;
}
@@ -35,14 +41,14 @@ if ($filehandler->open("read")) {
}
if (!$success) {
- $location = elgg_get_plugins_path() . "groups/graphics/default{$size}.jpg";
+ $location = elgg_get_plugins_path() . "groups/graphics/default{$size}.gif";
$contents = @file_get_contents($location);
}
header("Content-type: image/jpeg");
-header('Expires: ' . date('r',time() + 864000));
+header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', strtotime("+10 days")), true);
header("Pragma: public");
header("Cache-Control: public");
header("Content-Length: " . strlen($contents));
-header("ETag: $etag");
+header("ETag: \"$etag\"");
echo $contents;