+#define MODEST_TNY_MSG_PARENT_UID "parent-uid"
+
+static TnyMsg *
+create_reply_forward_mail (TnyMsg *msg, TnyHeader *header, const gchar *from,
+ const gchar *signature, gboolean is_reply,
+ guint type /*ignored*/, GList *attachments)
+{
+ TnyMsg *new_msg;
+ TnyHeader *new_header;
+ gchar *new_subject;
+ TnyMimePart *body = NULL;
+ ModestFormatter *formatter;
+ gchar *subject_prefix;
+ gboolean no_text_part;
+
+ if (header)
+ g_object_ref (header);
+ else
+ header = tny_msg_get_header (msg);
+
+ /* Get body from original msg. Always look for the text/plain
+ part of the message to create the reply/forwarded mail */
+ if (msg != NULL)
+ body = modest_tny_msg_find_body_part (msg, FALSE);
+
+ if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT,
+ NULL))
+ formatter = modest_formatter_new ("text/html", signature);
+ else
+ formatter = modest_formatter_new ("text/plain", signature);
+
+
+ /* if we don't have a text-part */
+ no_text_part = (!body) || (strcmp (tny_mime_part_get_content_type (body), "text/html")==0);
+
+ /* when we're reply, include the text part if we have it, or nothing otherwise. */
+ if (is_reply)
+ new_msg = modest_formatter_quote (formatter, no_text_part ? NULL: body, header,
+ attachments);
+ else {
+ /* for attachements; inline if there is a text part, and include the
+ * full old mail if there was none */
+ if (no_text_part) {
+ new_msg = modest_formatter_attach (formatter, msg, header);
+ } else {
+ new_msg = modest_formatter_inline (formatter, body, header,
+ attachments);
+ }
+ }
+
+ g_object_unref (G_OBJECT(formatter));
+ if (body)
+ g_object_unref (G_OBJECT(body));
+
+ /* Fill the header */
+ new_header = tny_msg_get_header (new_msg);
+ tny_header_set_from (new_header, from);
+ tny_header_set_replyto (new_header, from);
+
+ /* Change the subject */
+ if (is_reply)
+ subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
+ else
+ subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
+ new_subject =
+ (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
+ subject_prefix);
+ g_free (subject_prefix);
+ tny_header_set_subject (new_header, (const gchar *) new_subject);
+ g_free (new_subject);
+
+ /* get the parent uid, and set it as a gobject property on the new msg */
+ if (new_msg) {
+ gchar* parent_uid = modest_tny_folder_get_header_unique_id (header);
+ g_object_set_data_full (G_OBJECT(new_msg), MODEST_TNY_MSG_PARENT_UID,
+ parent_uid, g_free);
+ }
+
+ /* set modest as the X-Mailer
+ * we could this in the platform factory, but then the header
+ * would show up before all the others.
+ */
+ tny_mime_part_set_header_pair (TNY_MIME_PART (msg), "X-Mailer", "Modest "
+ VERSION);
+
+ /* Clean */
+ g_object_unref (G_OBJECT (new_header));
+ g_object_unref (G_OBJECT (header));
+ /* ugly to unref it here instead of in the calling func */
+
+ if (!is_reply & !no_text_part) {
+ add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE);
+ }
+
+ return new_msg;
+}
+
+const gchar*
+modest_tny_msg_get_parent_uid (TnyMsg *msg)
+{
+ g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
+
+ return g_object_get_data (G_OBJECT(msg), MODEST_TNY_MSG_PARENT_UID);
+}
+
+
+
+static void
+add_if_attachment (gpointer data, gpointer user_data)
+{
+ TnyMimePart *part;
+ GList **attachments_list;
+
+ part = TNY_MIME_PART (data);
+ attachments_list = ((GList **) user_data);
+
+ if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
+ *attachments_list = g_list_prepend (*attachments_list, part);
+ g_object_ref (part);
+ }
+}
+
+TnyMsg*
+modest_tny_msg_create_forward_msg (TnyMsg *msg,
+ const gchar *from,
+ const gchar *signature,
+ ModestTnyMsgForwardType forward_type)
+{
+ TnyMsg *new_msg;
+ TnyList *parts = NULL;
+ GList *attachments_list = NULL;
+
+ g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
+
+ /* Add attachments */
+ parts = TNY_LIST (tny_simple_list_new());
+ tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
+ tny_list_foreach (parts, add_if_attachment, &attachments_list);
+
+ new_msg = create_reply_forward_mail (msg, NULL, from, signature, FALSE, forward_type,
+ attachments_list);
+
+ /* Clean */
+ if (attachments_list) {
+ g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
+ g_list_free (attachments_list);
+ }
+ g_object_unref (G_OBJECT (parts));
+
+ return new_msg;
+}
+
+
+
+static gint
+count_addresses (const gchar* addresses)
+{
+ gint count = 1;
+
+ if (!addresses)
+ return 0;
+
+ while (*addresses) {
+ if (*addresses == ',' || *addresses == ';')
+ ++count;
+ ++addresses;
+ }
+
+ return count;
+}
+
+
+/* get the new To:, based on the old header,
+ * result is newly allocated or NULL in case of error
+ * */
+static gchar*
+get_new_to (TnyMsg *msg, TnyHeader *header, const gchar* from,
+ ModestTnyMsgReplyMode reply_mode)
+{
+ const gchar* old_reply_to;
+ const gchar* old_from;
+ gchar* new_to;
+
+ /* according to RFC2369 (http://www.faqs.org/rfcs/rfc2369.html), we
+ * can identify Mailing-List posts by the List-Help header.
+ * for mailing lists, both the Reply-To: and From: should be included
+ * in the new To:; for now, we're ignoring List-Post
+ */
+ gchar* list_help = modest_tny_mime_part_get_header_value (TNY_MIME_PART(msg),
+ "List-Help");
+ gboolean is_mailing_list = (list_help != NULL);
+ g_free (list_help);
+
+
+ /* reply to sender, use ReplyTo or From */
+ //old_reply_to = tny_header_get_replyto (header);
+ old_reply_to = modest_tny_mime_part_get_header_value (TNY_MIME_PART(msg),
+ "Reply-To");
+ old_from = tny_header_get_from (header);
+
+ if (!old_from && !old_reply_to) {
+ g_warning ("%s: failed to get either Reply-To: or From: from header",
+ __FUNCTION__);
+ return NULL;
+ }
+
+ /* for mailing lists, use both Reply-To and From if we did a
+ * 'Reply All:'
+ * */
+ if (is_mailing_list && reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL &&
+ old_reply_to && old_from && strcmp (old_from, old_reply_to) != 0)
+ new_to = g_strjoin (",", old_reply_to, old_from, NULL);
+ else
+ /* otherwise use either Reply-To: (preferred) or From: */
+ new_to = g_strdup (old_reply_to ? old_reply_to : old_from);
+
+ /* in case of ReplyAll, we need to add the Recipients in the old To: */
+ if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
+ const gchar *old_to = tny_header_get_to (header);
+ if (!old_to)
+ g_warning ("%s: no To: address found in source mail",
+ __FUNCTION__);
+ else {
+ /* append the old To: */
+ gchar *tmp = g_strjoin (",", new_to, old_to, NULL);
+ g_free (new_to);
+ new_to = tmp;
+ }
+
+ /* remove duplicate entries */
+ gchar *tmp = modest_text_utils_remove_duplicate_addresses (new_to);
+ g_free (new_to);
+ new_to = tmp;
+
+ /* now, strip me (the new From:) from the new_to, but only if
+ * there are >1 addresses there */
+ if (count_addresses (new_to) > 1) {
+ gchar *tmp = modest_text_utils_remove_address (new_to, from);
+ g_free (new_to);
+ new_to = tmp;
+ }
+ }
+
+ return new_to;
+}
+
+
+/* get the new Cc:, based on the old header,
+ * result is newly allocated or NULL in case of error */
+static gchar*
+get_new_cc (TnyHeader *header, const gchar* from)
+{
+ const gchar *old_cc;
+
+ old_cc = tny_header_get_cc (header);
+ if (!old_cc)
+ return NULL;
+
+ /* remove me (the new From:) from the Cc: list */
+ return modest_text_utils_remove_address (old_cc, from);
+}
+
+
+TnyMsg*
+modest_tny_msg_create_reply_msg (TnyMsg *msg,
+ TnyHeader *header,
+ const gchar *from,
+ const gchar *signature,
+ ModestTnyMsgReplyType reply_type,
+ ModestTnyMsgReplyMode reply_mode)
+{
+ TnyMsg *new_msg = NULL;
+ TnyHeader *new_header;
+ gchar *new_to = NULL;
+ TnyList *parts = NULL;
+ GList *attachments_list = NULL;
+
+ g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
+
+ parts = TNY_LIST (tny_simple_list_new());
+ tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
+ tny_list_foreach (parts, add_if_attachment, &attachments_list);
+
+ new_msg = create_reply_forward_mail (msg, header, from, signature, TRUE, reply_type,
+ attachments_list);
+ if (attachments_list) {
+ g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
+ g_list_free (attachments_list);
+ }
+ if (parts)
+ g_object_unref (G_OBJECT (parts));
+
+ /* Fill the header */
+ if (header)
+ g_object_ref (header);
+ else
+ header = tny_msg_get_header (msg);
+
+
+ new_header = tny_msg_get_header(new_msg);
+ new_to = get_new_to (msg, header, from, reply_mode);
+ if (!new_to)
+ g_warning ("%s: failed to get new To:", __FUNCTION__);
+ else {
+ tny_header_set_to (new_header, new_to);
+ g_free (new_to);
+ }
+
+ if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
+ gchar *new_cc = get_new_cc (header, from);
+ if (new_cc) {
+ tny_header_set_cc (new_header, new_cc);
+ g_free (new_cc);
+ }
+ }
+
+ /* Clean */
+ g_object_unref (G_OBJECT (new_header));
+ g_object_unref (G_OBJECT (header));
+
+ return new_msg;
+}
+