[evolution] Bug 705194 - Failure to decrypt inline encrypted GPG messages

[Matthew Barnes <mbarnes src gnome org>]

commit ca67414c22d003f5e005cc05689efdec38dcd4e7
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Aug 1 14:00:17 2013 +0200

    Bug 705194 - Failure to decrypt inline encrypted GPG messages
    
    Commit 514736f27efeac6d5ad42e055ebabb423d243fb2 in 3.9.5 broke inline
    PGP encrypted messages, because the parser was treating the encrypted
    message content as an attachment even though the content type is just
    text/plain.  This ensures the message content is treated correctly.

 em-format/e-mail-parser-inlinepgp-encrypted.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/em-format/e-mail-parser-inlinepgp-encrypted.c b/em-format/e-mail-parser-inlinepgp-encrypted.c
index 1c0cd58..ae008dc 100644
--- a/em-format/e-mail-parser-inlinepgp-encrypted.c
+++ b/em-format/e-mail-parser-inlinepgp-encrypted.c
@@ -98,10 +98,20 @@ empe_inlinepgp_encrypted_parse (EMailParserExtension *extension,
 
        /* this ensures to show the 'opart' as inlined, if possible */
        if (mime_type && g_ascii_strcasecmp (mime_type, "application/octet-stream") == 0) {
-               const gchar *snoop = e_mail_part_snoop_type (opart);
+               const gchar *snoop;
 
-               if (snoop)
+               snoop = e_mail_part_snoop_type (opart);
+
+               if (snoop != NULL) {
                        camel_data_wrapper_set_mime_type (dw, snoop);
+
+                       /* Set the MIME type on the 'opart' itself as well.
+                        * If it's "text/plain", then we want the TextPlain
+                        * parser extension to treat it as "text/plain" and
+                        * NOT wrap it as an attachment. */
+                       camel_data_wrapper_set_mime_type (
+                               CAMEL_DATA_WRAPPER (opart), snoop);
+               }
        }
 
        e_mail_part_preserve_charset_in_content_type (part, opart);