Display PGP/MIME signature attachments as "Digital Signature" (#1488570)

1 files changed, 8 insertions, 1 deletions

diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index bedd3e8ea..44a1557c3 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -1838,7 +1838,7 @@ function rcmail_fix_mimetype($name)
 }
 
 // return attachment filename, handle empty filename case
-function rcmail_attachment_name($attachment)
+function rcmail_attachment_name($attachment, $display = false)
 {
     $filename = $attachment->filename;
 
@@ -1858,6 +1858,13 @@ function rcmail_attachment_name($attachment)
 
     $filename = preg_replace('[\r\n]', '', $filename);
 
+    // Display smart names for some known mimetypes
+    if ($display) {
+        if (preg_match('/application\/(pgp|pkcs7)-signature/i', $attachment->mimetype)) {
+            $filename = rcube_label('digitalsig');
+        }
+    }
+
     return $filename;
 }