1 /* Copyright (c) 2006, Nokia Corporation
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * * Neither the name of the Nokia Corporation nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
18 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <gtkhtml/gtkhtml.h>
32 #include <tny-gtk-text-buffer-stream.h>
33 #include <tny-simple-list.h>
34 #include <tny-folder.h>
35 #include <modest-runtime.h>
36 #include "modest-formatter.h"
37 #include <tny-camel-stream.h>
38 #include <tny-camel-mime-part.h>
39 #include <camel/camel-stream-buffer.h>
40 #include <camel/camel-stream-mem.h>
41 #include <glib/gprintf.h>
42 #include <modest-tny-folder.h>
46 #endif /*HAVE_CONFIG_H */
48 #include <modest-tny-msg.h>
49 #include "modest-text-utils.h"
51 static TnyMimePart * add_body_part (TnyMsg *msg, const gchar *body,
52 const gchar *content_type);
53 static TnyMimePart * add_html_body_part (TnyMsg *msg, const gchar *body);
54 static void add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline);
55 static void add_images (TnyMsg *msg, GList *attachments_list);
56 static char * get_content_type(const gchar *s);
57 static gboolean is_ascii(const gchar *s);
61 modest_tny_msg_new (const gchar* mailto, const gchar* from, const gchar *cc,
62 const gchar *bcc, const gchar* subject, const gchar *body,
70 new_msg = modest_formatter_create_message (NULL, TRUE, (attachments != NULL), FALSE);
71 header = tny_msg_get_header (new_msg);
73 if ((from != NULL) && (strlen(from) > 0)) {
74 tny_header_set_from (TNY_HEADER (header), from);
75 tny_header_set_replyto (TNY_HEADER (header), from);
77 if ((mailto != NULL) && (strlen(mailto) > 0))
78 tny_header_set_to (TNY_HEADER (header), mailto);
79 if ((cc != NULL) && (strlen(cc) > 0))
80 tny_header_set_cc (TNY_HEADER (header), cc);
81 if ((bcc != NULL) && (strlen(bcc) > 0))
82 tny_header_set_bcc (TNY_HEADER (header), bcc);
84 if ((subject != NULL) && (strlen(subject) > 0))
85 tny_header_set_subject (TNY_HEADER (header), subject);
87 content_type = get_content_type(body);
89 /* set modest as the X-Mailer
90 * we could this in the platform factory, but then the header
91 * would show up before all the others.
93 tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
96 /* Add the body of the new mail */
97 /* This is needed even if body is NULL or empty. */
98 add_body_part (new_msg, body, content_type);
99 g_free (content_type);
101 /* Add attachments */
103 add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE);
105 g_object_unref(header);
111 modest_tny_msg_new_html_plain (const gchar* mailto, const gchar* from, const gchar *cc,
112 const gchar *bcc, const gchar* subject,
113 const gchar *html_body, const gchar *plain_body,
114 GList *attachments, GList *images)
121 new_msg = modest_formatter_create_message (NULL, FALSE, (attachments != NULL), (images != NULL));
122 header = tny_msg_get_header (new_msg);
124 if ((from != NULL) && (strlen(from) > 0)) {
125 tny_header_set_from (TNY_HEADER (header), from);
126 tny_header_set_replyto (TNY_HEADER (header), from);
128 if ((mailto != NULL) && (strlen(mailto) > 0))
129 tny_header_set_to (TNY_HEADER (header), mailto);
130 if ((cc != NULL) && (strlen(cc) > 0))
131 tny_header_set_cc (TNY_HEADER (header), cc);
132 if ((bcc != NULL) && (strlen(bcc) > 0))
133 tny_header_set_bcc (TNY_HEADER (header), bcc);
135 if ((subject != NULL) && (strlen(subject) > 0))
136 tny_header_set_subject (TNY_HEADER (header), subject);
138 content_type = get_content_type(plain_body);
140 /* set modest as the X-Mailer
141 * we could this in the platform factory, but then the header
142 * would show up before all the others.
144 tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
147 /* Add the body of the new mail */
148 add_body_part (new_msg, plain_body, content_type);
149 add_html_body_part (new_msg, html_body);
150 g_free (content_type);
152 /* Add attachments */
153 add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE);
154 add_images (new_msg, images);
156 g_object_unref(header);
162 /* FIXME: this func copy from modest-mail-operation: refactor */
164 add_body_part (TnyMsg *msg,
166 const gchar *content_type)
168 TnyMimePart *text_body_part = NULL;
169 TnyStream *text_body_stream;
171 /* Create the stream */
172 text_body_stream = TNY_STREAM (tny_camel_stream_new
173 (camel_stream_mem_new_with_buffer
174 (body, (body ? strlen(body) : 0))));
176 text_body_part = modest_formatter_create_body_part (NULL, msg);
178 /* Construct MIME part */
179 tny_stream_reset (text_body_stream);
180 tny_mime_part_construct_from_stream (text_body_part,
183 tny_stream_reset (text_body_stream);
185 g_object_unref (G_OBJECT(text_body_part));
188 g_object_unref (text_body_stream);
190 return text_body_part;
194 add_html_body_part (TnyMsg *msg,
197 TnyMimePart *html_body_part = NULL;
198 TnyStream *html_body_stream;
200 /* Create the stream */
201 html_body_stream = TNY_STREAM (tny_camel_stream_new
202 (camel_stream_mem_new_with_buffer
203 (body, strlen(body))));
205 /* Create body part if needed */
206 html_body_part = modest_formatter_create_body_part (NULL, msg);
208 /* Construct MIME part */
209 tny_stream_reset (html_body_stream);
210 tny_mime_part_construct_from_stream (html_body_part,
212 "text/html; charset=utf-8");
213 tny_stream_reset (html_body_stream);
215 g_object_unref (G_OBJECT(html_body_part));
218 g_object_unref (html_body_stream);
220 return html_body_part;
224 copy_mime_part (TnyMimePart *part)
226 TnyMimePart *result = NULL;
227 const gchar *attachment_content_type;
228 const gchar *attachment_filename;
229 const gchar *attachment_cid;
231 TnyIterator *iterator;
232 TnyStream *attachment_stream;
234 if (TNY_IS_MSG (part)) {
239 result = tny_platform_factory_new_mime_part (
240 modest_runtime_get_platform_factory());
242 attachment_content_type = tny_mime_part_get_content_type (part);
244 /* get mime part headers */
245 attachment_filename = tny_mime_part_get_filename (part);
246 attachment_cid = tny_mime_part_get_content_id (part);
248 /* fill the stream */
249 attachment_stream = tny_mime_part_get_stream (part);
250 tny_stream_reset (attachment_stream);
251 tny_mime_part_construct_from_stream (result,
253 attachment_content_type);
254 tny_stream_reset (attachment_stream);
256 /* set other mime part fields */
257 tny_mime_part_set_filename (result, attachment_filename);
258 tny_mime_part_set_content_id (result, attachment_cid);
261 parts = tny_simple_list_new ();
262 tny_mime_part_get_parts (part, parts);
263 iterator = tny_list_create_iterator (parts);
264 while (!tny_iterator_is_done (iterator)) {
265 TnyMimePart *subpart = TNY_MIME_PART (tny_iterator_get_current (iterator));
267 const gchar *subpart_cid;
268 TnyMimePart *subpart_copy = copy_mime_part (subpart);
269 subpart_cid = tny_mime_part_get_content_id (subpart);
270 tny_mime_part_add_part (result, subpart_copy);
272 tny_mime_part_set_content_id (result, subpart_cid);
273 g_object_unref (subpart);
274 g_object_unref (subpart_copy);
277 tny_iterator_next (iterator);
279 g_object_unref (iterator);
280 g_object_unref (parts);
281 g_object_unref (attachment_stream);
287 add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline)
290 TnyMimePart *attachment_part, *old_attachment;
292 for (pos = (GList *)attachments_list; pos; pos = pos->next) {
294 old_attachment = pos->data;
295 if (!tny_mime_part_is_purged (old_attachment)) {
296 const gchar *old_cid;
297 old_cid = tny_mime_part_get_content_id (old_attachment);
298 attachment_part = copy_mime_part (old_attachment);
299 tny_mime_part_set_header_pair (attachment_part, "Content-Disposition",
300 add_inline?"inline":"attachment");
301 tny_mime_part_add_part (TNY_MIME_PART (part), attachment_part);
303 tny_mime_part_set_content_id (attachment_part, old_cid);
304 g_object_unref (attachment_part);
310 add_images (TnyMsg *msg, GList *images_list)
312 TnyMimePart *related_part = NULL;
313 const gchar *content_type;
315 content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
317 if ((content_type != NULL) && !strcasecmp (content_type, "multipart/related")) {
318 related_part = g_object_ref (msg);
319 } else if ((content_type != NULL) && !strcasecmp (content_type, "multipart/mixed")) {
320 TnyList *parts = TNY_LIST (tny_simple_list_new ());
321 TnyIterator *iter = NULL;
322 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
323 iter = tny_list_create_iterator (parts);
325 while (!tny_iterator_is_done (iter)) {
326 TnyMimePart *part = TNY_MIME_PART (tny_iterator_get_current (iter));
327 if (part && !g_strcasecmp (tny_mime_part_get_content_type (part), "multipart/related")) {
331 g_object_unref (part);
333 tny_iterator_next (iter);
335 g_object_unref (iter);
336 g_object_unref (parts);
339 if (related_part != NULL) {
340 /* TODO: attach images in their proper place */
341 add_attachments (related_part, images_list, TRUE);
342 g_object_unref (related_part);
348 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html, gboolean *is_html)
353 GtkTextIter start, end;
355 gboolean result_was_html = TRUE;
357 g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
359 body = modest_tny_msg_find_body_part(msg, want_html);
363 buf = gtk_text_buffer_new (NULL);
364 stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
365 tny_stream_reset (stream);
366 tny_mime_part_decode_to_stream (body, stream);
367 tny_stream_reset (stream);
369 gtk_text_buffer_get_bounds (buf, &start, &end);
370 to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
371 if (tny_mime_part_content_type_is (body, "text/plain")) {
372 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
374 to_quote = to_quote_converted;
375 result_was_html = FALSE;
378 g_object_unref (buf);
379 g_object_unref (G_OBJECT(stream));
380 g_object_unref (G_OBJECT(body));
383 *is_html = result_was_html;
390 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
392 const gchar *desired_mime_type = want_html ? "text/html" : "text/plain";
393 TnyMimePart *part = NULL;
394 TnyList *parts = NULL;
395 TnyIterator *iter = NULL;
400 parts = TNY_LIST (tny_simple_list_new());
401 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
403 iter = tny_list_create_iterator(parts);
405 /* no parts? assume it's single-part message */
406 if (tny_iterator_is_done(iter)) {
407 g_object_unref (G_OBJECT(iter));
408 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
411 gchar *content_type = NULL;
413 part = TNY_MIME_PART(tny_iterator_get_current (iter));
416 g_warning ("%s: not a valid mime part", __FUNCTION__);
420 /* it's a message --> ignore */
421 if (part && TNY_IS_MSG (part)) {
422 g_object_unref (part);
423 tny_iterator_next (iter);
428 /* we need to strdown the content type, because
429 * tny_mime_part_has_content_type does not do it...
431 content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
433 if (g_str_has_prefix (content_type, desired_mime_type) && !tny_mime_part_is_attachment (part)) {
434 /* we found the desired mime-type! */
435 g_free (content_type);
438 } else if (g_str_has_prefix(content_type, "multipart")) {
440 /* multipart? recurse! */
441 g_object_unref (part);
442 g_free (content_type);
443 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
447 g_free (content_type);
450 g_object_unref (G_OBJECT(part));
454 tny_iterator_next (iter);
456 } while (!tny_iterator_is_done(iter));
459 g_object_unref (G_OBJECT(iter));
460 g_object_unref (G_OBJECT(parts));
462 /* if were trying to find an HTML part and couldn't find it,
463 * try to find a text/plain part instead
465 if (!part && want_html)
466 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
468 return part; /* this maybe NULL, this is not an error; some message just don't have a body
474 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
476 g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
478 return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
483 #define MODEST_TNY_MSG_PARENT_UID "parent-uid"
486 create_reply_forward_mail (TnyMsg *msg, TnyHeader *header, const gchar *from,
487 const gchar *signature, gboolean is_reply,
488 guint type /*ignored*/, GList *attachments)
491 TnyHeader *new_header;
493 TnyMimePart *body = NULL;
494 ModestFormatter *formatter;
495 gchar *subject_prefix;
496 gboolean no_text_part;
499 g_object_ref (header);
501 header = tny_msg_get_header (msg);
503 /* Get body from original msg. Always look for the text/plain
504 part of the message to create the reply/forwarded mail */
506 body = modest_tny_msg_find_body_part (msg, FALSE);
508 if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT,
510 formatter = modest_formatter_new ("text/html", signature);
512 formatter = modest_formatter_new ("text/plain", signature);
515 /* if we don't have a text-part */
516 no_text_part = (!body) || (strcmp (tny_mime_part_get_content_type (body), "text/html")==0);
518 /* when we're reply, include the text part if we have it, or nothing otherwise. */
520 new_msg = modest_formatter_quote (formatter, no_text_part ? NULL: body, header,
523 /* for attachements; inline if there is a text part, and include the
524 * full old mail if there was none */
526 new_msg = modest_formatter_attach (formatter, msg, header);
528 new_msg = modest_formatter_inline (formatter, body, header,
532 g_object_unref (G_OBJECT(formatter));
534 g_object_unref (G_OBJECT(body));
536 /* Fill the header */
537 new_header = tny_msg_get_header (new_msg);
538 tny_header_set_from (new_header, from);
539 tny_header_set_replyto (new_header, from);
541 /* Change the subject */
543 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
545 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
547 (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
549 g_free (subject_prefix);
550 tny_header_set_subject (new_header, (const gchar *) new_subject);
551 g_free (new_subject);
553 /* get the parent uid, and set it as a gobject property on the new msg */
555 gchar* parent_uid = modest_tny_folder_get_header_unique_id (header);
556 g_object_set_data_full (G_OBJECT(new_msg), MODEST_TNY_MSG_PARENT_UID,
560 /* set modest as the X-Mailer
561 * we could this in the platform factory, but then the header
562 * would show up before all the others.
564 tny_mime_part_set_header_pair (TNY_MIME_PART (msg), "X-Mailer", "Modest "
568 g_object_unref (G_OBJECT (new_header));
569 g_object_unref (G_OBJECT (header));
570 /* ugly to unref it here instead of in the calling func */
576 modest_tny_msg_get_parent_uid (TnyMsg *msg)
578 g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
580 return g_object_get_data (G_OBJECT(msg), MODEST_TNY_MSG_PARENT_UID);
586 add_if_attachment (gpointer data, gpointer user_data)
589 GList **attachments_list;
591 part = TNY_MIME_PART (data);
592 attachments_list = ((GList **) user_data);
594 if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
595 *attachments_list = g_list_prepend (*attachments_list, part);
601 modest_tny_msg_create_forward_msg (TnyMsg *msg,
603 const gchar *signature,
604 ModestTnyMsgForwardType forward_type)
607 TnyList *parts = NULL;
608 GList *attachments_list = NULL;
610 g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
612 /* Add attachments */
613 parts = TNY_LIST (tny_simple_list_new());
614 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
615 tny_list_foreach (parts, add_if_attachment, &attachments_list);
617 new_msg = create_reply_forward_mail (msg, NULL, from, signature, FALSE, forward_type,
619 add_attachments (TNY_MIME_PART (new_msg), attachments_list, FALSE);
622 if (attachments_list)
623 g_list_free (attachments_list);
624 g_object_unref (G_OBJECT (parts));
631 modest_tny_msg_get_header (TnyMsg *msg, const gchar *header)
637 g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
638 g_return_val_if_fail (header, NULL);
640 pairs = tny_simple_list_new ();
642 tny_mime_part_get_header_pairs (TNY_MIME_PART(msg), pairs);
643 iter = tny_list_create_iterator (pairs);
646 while (!tny_iterator_is_done(iter) && !val) {
648 TnyPair *pair = (TnyPair*)tny_iterator_get_current(iter);
649 if (strcasecmp (header, tny_pair_get_name(pair)) == 0)
650 val = g_strdup (tny_pair_get_value(pair));
651 g_object_unref (pair);
653 tny_iterator_next (iter);
656 g_object_unref (pairs);
657 g_object_unref (iter);
664 /* get the new To:, based on the old header,
665 * result is newly allocated or NULL in case of error
668 get_new_to (TnyMsg *msg, TnyHeader *header, const gchar* from,
669 ModestTnyMsgReplyMode reply_mode)
671 const gchar* old_reply_to;
672 const gchar* old_from;
675 /* according to RFC2369 (http://www.faqs.org/rfcs/rfc2369.html), we
676 * can identify Mailing-List posts by the List-Help header.
677 * for mailing lists, both the Reply-To: and From: should be included
678 * in the new To:; for now, we're ignoring List-Post
680 gchar* list_help = modest_tny_msg_get_header (msg, "List-Help");
681 gboolean is_mailing_list = (list_help != NULL);
685 /* reply to sender, use ReplyTo or From */
686 //old_reply_to = tny_header_get_replyto (header);
687 old_reply_to = modest_tny_msg_get_header (msg, "Reply-To");
688 old_from = tny_header_get_from (header);
690 if (!old_from && !old_reply_to) {
691 g_warning ("%s: failed to get either Reply-To: or From: from header",
696 /* for mailing lists, use both Reply-To and From if we did a
699 if (is_mailing_list && reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL &&
700 old_reply_to && old_from && strcmp (old_from, old_reply_to) != 0)
701 new_to = g_strjoin (",", old_reply_to, old_from, NULL);
703 /* otherwise use either Reply-To: (preferred) or From: */
704 new_to = g_strdup (old_reply_to ? old_reply_to : old_from);
706 /* in case of ReplyAll, we need to add the Recipients in the old To: */
707 if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
708 const gchar *old_to = tny_header_get_to (header);
710 g_warning ("%s: no To: address found in source mail",
713 /* append the old To: */
714 gchar *tmp = g_strjoin (",", new_to, old_to, NULL);
720 /* now, strip me (the new From:) from the new_to */
721 gchar *tmp = modest_text_utils_remove_address (new_to, from);
725 /* remove duplicate entries */
726 tmp = modest_text_utils_remove_duplicate_addresses (new_to);
734 /* get the new Cc:, based on the old header,
735 * result is newly allocated or NULL in case of error */
737 get_new_cc (TnyHeader *header, const gchar* from)
741 old_cc = tny_header_get_cc (header);
745 /* remove me (the new From:) from the Cc: list */
746 return modest_text_utils_remove_address (old_cc, from);
751 modest_tny_msg_create_reply_msg (TnyMsg *msg,
754 const gchar *signature,
755 ModestTnyMsgReplyType reply_type,
756 ModestTnyMsgReplyMode reply_mode)
758 TnyMsg *new_msg = NULL;
759 TnyHeader *new_header;
760 gchar *new_to, *new_cc = NULL;
761 TnyList *parts = NULL;
762 GList *attachments_list = NULL;
764 g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
766 /* Add attachments */
768 parts = TNY_LIST (tny_simple_list_new());
769 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
770 tny_list_foreach (parts, add_if_attachment, &attachments_list);
773 new_msg = create_reply_forward_mail (msg, header, from, signature, TRUE, reply_type,
775 if (attachments_list) {
776 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
777 g_list_free (attachments_list);
780 g_object_unref (G_OBJECT (parts));
782 /* Fill the header */
784 g_object_ref (header);
786 header = tny_msg_get_header (msg);
789 new_header = tny_msg_get_header(new_msg);
790 new_to = get_new_to (msg, header, from, reply_mode);
792 g_warning ("%s: failed to get new To:", __FUNCTION__);
794 tny_header_set_to (new_header, new_to);
797 new_cc = get_new_cc (header, from);
799 tny_header_set_cc (new_header, new_cc);
804 g_object_unref (G_OBJECT (new_header));
805 g_object_unref (G_OBJECT (header));
812 is_ascii(const gchar *s)
817 if (s[0] & 128 || s[0] < 32)
825 get_content_type(const gchar *s)
829 type = g_string_new("text/plain");
831 if (g_utf8_validate(s, -1, NULL)) {
832 g_string_append(type, "; charset=\"utf-8\"");
834 /* it should be impossible to reach this, but better safe than sorry */
835 g_warning("invalid utf8 in message");
836 g_string_append(type, "; charset=\"latin1\"");
839 return g_string_free(type, FALSE);