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carray_delete_slow(mimeparser->parts, 0);
}
}
/* prepend subject to message? */
if (mimeparser->subject)
{
int prepend_subject = 1;
if (!mimeparser->decrypting_failed /* if decryption has failed, we always prepend the subject as this may contain cleartext hints from non-Delta MUAs. */)
{
char* p = strchr(mimeparser->subject, ':');
if ((p-mimeparser->subject)==2 /*Re: etc.*/
|| (p-mimeparser->subject)==3 /*Fwd: etc.*/
|| mimeparser->is_send_by_messenger
|| strstr(mimeparser->subject, DC_CHAT_PREFIX)!=NULL) {
prepend_subject = 0;
}
}
if (prepend_subject)
{
char* subj = dc_strdup(mimeparser->subject);
char* p = strchr(subj, '['); /* do not add any tags as "[checked by XYZ]" */
if (p) {
*p = 0;
}
dc_trim(subj);
if (subj[0]) {
int i, icnt = carray_count(mimeparser->parts); /* should be at least one - maybe empty - part */
for (i = 0; i < icnt; i++) {
dc_mimepart_t* part = (dc_mimepart_t*)carray_get(mimeparser->parts, i);
if (part->type==DC_MSG_TEXT) {
char* new_txt = dc_mprintf("%s " DC_NDASH " %s", subj, part->msg);
free(part->msg);
part->msg = new_txt;
break;
}
}
}
free(subj);
}
}
/* add forward information to every part */
if (mimeparser->is_forwarded) {
int i, icnt = carray_count(mimeparser->parts); /* should be at least one - maybe empty - part */
for (i = 0; i < icnt; i++) {
dc_mimepart_t* part = (dc_mimepart_t*)carray_get(mimeparser->parts, i);
dc_param_set_int(part->param, DC_PARAM_FORWARDED, 1);
}
}
if (carray_count(mimeparser->parts)==1)
{
/* mark audio as voice message, if appropriate (we have to do this on global level as we do not know the global header in the recursice parse).
and read some additional parameters */
dc_mimepart_t* part = (dc_mimepart_t*)carray_get(mimeparser->parts, 0);
if (part->type==DC_MSG_AUDIO) {
if (dc_mimeparser_lookup_optional_field(mimeparser, "Chat-Voice-Message")) {
part->type = DC_MSG_VOICE;
}
}
if (part->type==DC_MSG_AUDIO || part->type==DC_MSG_VOICE || part->type==DC_MSG_VIDEO) {
const struct mailimf_optional_field* field = dc_mimeparser_lookup_optional_field(mimeparser, "Chat-Duration");
if (field) {
int duration_ms = atoi(field->fld_value);
if (duration_ms > 0 && duration_ms < 24*60*60*1000) {
dc_param_set_int(part->param, DC_PARAM_DURATION, duration_ms);
}
}
}
}
/* check, if the message asks for a MDN */
if (!mimeparser->decrypting_failed)
{
const struct mailimf_optional_field* dn_field = dc_mimeparser_lookup_optional_field(mimeparser, "Chat-Disposition-Notification-To"); /* we use "Chat-Disposition-Notification-To" as replies to "Disposition-Notification-To" are weird in many cases, are just freetext and/or do not follow any standard. */
if (dn_field && dc_mimeparser_get_last_nonmeta(mimeparser)/*just check if the mail is not empty*/)
{
struct mailimf_mailbox_list* mb_list = NULL;
size_t index = 0;
if (mailimf_mailbox_list_parse(dn_field->fld_value, strlen(dn_field->fld_value), &index, &mb_list)==MAILIMF_NO_ERROR && mb_list)
{
char* dn_to_addr = mailimf_find_first_addr(mb_list);
if (dn_to_addr)
{
struct mailimf_field* from_field = dc_mimeparser_lookup_field(mimeparser, "From"); /* we need From: as this MUST match Disposition-Notification-To: */
if (from_field && from_field->fld_type==MAILIMF_FIELD_FROM && from_field->fld_data.fld_from)
{
char* from_addr = mailimf_find_first_addr(from_field->fld_data.fld_from->frm_mb_list);
if (from_addr)
{
if (strcmp(from_addr, dn_to_addr)==0)
{
/* we mark _only_ the _last_ part to send a MDN
(this avoids trouble with multi-part-messages who should send only one MDN.
Moreover the last one is handy as it is the one typically displayed if the message is larger) */
dc_mimepart_t* part = dc_mimeparser_get_last_nonmeta(mimeparser);
if (part) {