fix: unknown content-disposition type should be treated as attachment (#6002)

7 years ago · 6843668b2b
parent 5e31411819
commit 6843668b2b
1 changed files with 4 additions and 1 deletions
--- a/program/lib/Roundcube/rcube_imap.php
+++ b/program/lib/Roundcube/rcube_imap.php
@ -2104,7 +2104,10 @@ class rcube_imap extends rcube_storage

        if (is_array($part[$di]) && count($part[$di]) == 2) {
            $struct->disposition = strtolower($part[$di][0]);
-
+            if ($struct->disposition && $struct->disposition !== 'inline' && $struct->disposition !== 'attachment') {
+                // RFC2183, Section 2.8 - unrecognized type should be treated as "attachment"
+                $struct->disposition = 'attachment';
+            }
            if (is_array($part[$di][1])) {
                for ($n=0; $n<count($part[$di][1]); $n+=2) {
                    $struct->d_parameters[strtolower($part[$di][1][$n])] = $part[$di][1][$n+1];