1 files changed, 14 insertions, 0 deletions
diff --git a/inc/media.php b/inc/media.php
index db1ca0d57..501d170f3 100644
--- a/inc/media.php
+++ b/inc/media.php
@@ -83,6 +83,20 @@ function media_metasave($id,$auth,$data){
 }
 
 /**
+ * Check if a media item is public (eg, external URL or readable by @ALL)
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @param string $id  the media ID or URL
+ * @return bool
+ */
+function media_ispublic($id){
+    if(preg_match('/^https?:\/\//i',$id)) return true;
+    $id = cleanID($id);
+    if(auth_aclcheck(getNS($id).':*', '', array()) >= AUTH_READ) return true;
+    return false;
+}
+
+/**
  * Display the form to edit image meta data
  *
  * @author Andreas Gohr <andi@splitbrain.org>