[evolution] I#709 - tnef-attachment: Add TNEF part as attachment on error

[Milan Crha <mcrha src gnome org>]

commit 7411d445da8c54708c5a1ffc556627df2c11744a
Author: Milan Crha <mcrha redhat com>
Date:   Mon Nov 18 09:50:56 2019 +0100

    I#709 - tnef-attachment: Add TNEF part as attachment on error
    
    Closes https://gitlab.gnome.org/GNOME/evolution/issues/709

 .../e-mail-parser-tnef-attachment.c                | 32 ++++++++++++----------
 1 file changed, 17 insertions(+), 15 deletions(-)
---
diff --git a/src/modules/tnef-attachment/e-mail-parser-tnef-attachment.c 
b/src/modules/tnef-attachment/e-mail-parser-tnef-attachment.c
index 1524fccd7b..9620f9ba9f 100644
--- a/src/modules/tnef-attachment/e-mail-parser-tnef-attachment.c
+++ b/src/modules/tnef-attachment/e-mail-parser-tnef-attachment.c
@@ -120,9 +120,8 @@ empe_tnef_attachment_parse (EMailParserExtension *extension,
        CamelMultipart *mp;
        CamelMimePart *mainpart;
        CamelDataWrapper *content;
-       gint len;
        TNEFStruct tnef;
-       GQueue work_queue = G_QUEUE_INIT;
+       gboolean success = FALSE;
 
        tmpdir = e_mkdtemp ("tnef-attachment-XXXXXX");
        if (tmpdir == NULL)
@@ -157,14 +156,16 @@ empe_tnef_attachment_parse (EMailParserExtension *extension,
        TNEFInitialize (&tnef);
        tnef.Debug = verbose;
        if (TNEFParseFile (name, &tnef) == -1) {
-           printf ("ERROR processing file\n");
+               printf ("ERROR processing file\n");
+       } else {
+               success = TRUE;
        }
        processTnef (&tnef, tmpdir);
 
        TNEFFree (&tnef);
        /* Extraction done */
 
-       dir = opendir (tmpdir);
+       dir = success ? opendir (tmpdir) : NULL;
        if (dir == NULL) {
                g_free (tmpdir);
                g_free (name);
@@ -219,22 +220,23 @@ empe_tnef_attachment_parse (EMailParserExtension *extension,
 
        closedir (dir);
 
-       len = part_id->len;
-       g_string_append_printf (part_id, ".tnef");
+       success = camel_multipart_get_number (mp) > 0;
+
+       if (success) {
+               GQueue work_queue = G_QUEUE_INIT;
+               gint len;
+
+               len = part_id->len;
+               g_string_append_printf (part_id, ".tnef");
 
-       if (camel_multipart_get_number (mp) > 0) {
                e_mail_parser_parse_part_as (
                        parser, mainpart, part_id, "multipart/mixed",
                        cancellable, &work_queue);
-       }
-
-       g_string_truncate (part_id, len);
 
-       if (!g_queue_is_empty (&work_queue))
-               e_mail_parser_wrap_as_attachment (
-                       parser, part, part_id, &work_queue);
+               e_queue_transfer (&work_queue, out_mail_parts);
 
-       e_queue_transfer (&work_queue, out_mail_parts);
+               g_string_truncate (part_id, len);
+       }
 
        g_object_unref (mp);
        g_object_unref (mainpart);
@@ -242,7 +244,7 @@ empe_tnef_attachment_parse (EMailParserExtension *extension,
        g_free (name);
        g_free (tmpdir);
 
-       return TRUE;
+       return success;
 }
 
 static void