Enigma: Fix missing html/plain switch on multipart/signed messages (#1490649)

Aleksander Machniak

2016-02-07 4c0cb96a4857860bb0249da0541dc19c1ee93a9e

 program/lib/Roundcube/rcube_message.php

@@ -339,6 +339,7 @@

                $level = explode('.', $part->mime_id);
                $depth = count($level);
                $last  = '';

                // Check if the part belongs to higher-level's multipart part
                // this can be alternative/related/signed/encrypted or mixed
@@ -348,9 +349,12 @@
                        return true;
                    }

                    $parent = $this->mime_parts[join('.', $level)];
                    $parent    = $this->mime_parts[join('.', $level)];
                    $max_delta = $depth - (1 + ($last == 'multipart/alternative' ? 1 : 0));
                    $last      = $parent->mimetype;

                    if (!preg_match('/^multipart\/(alternative|related|signed|encrypted|mixed)$/', $parent->mimetype)
                        || ($parent->mimetype == 'multipart/mixed' && $parent_depth < $depth - 1)) {
                        || ($parent->mimetype == 'multipart/mixed' && $parent_depth < $max_delta)) {
                        continue 2;
                    }
                }