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RRTcodebaseC

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357
goto cleanup; /* no error - but nothing to add */
}
else {
decoded_data = charset_buffer;
decoded_data_bytes = ret_bytes;
}
}
/* check header directly as is_send_by_messenger is not yet set up */
int is_msgrmsg = dc_mimeparser_lookup_optional_field(mimeparser, "Chat-Version")!=NULL;
char* simplified_txt = dc_simplify_simplify(simplifier,
decoded_data, decoded_data_bytes,
mime_type==DC_MIMETYPE_TEXT_HTML? 1 : 0,
is_msgrmsg);
if (simplified_txt && simplified_txt[0])
{
part = dc_mimepart_new();
part->type = DC_MSG_TEXT;
part->int_mimetype = mime_type;
part->msg = simplified_txt;
part->msg_raw = strndup(decoded_data, decoded_data_bytes);
do_add_single_part(mimeparser, part);
part = NULL;
}
else
{
free(simplified_txt);
}
if (simplifier->is_forwarded) {
mimeparser->is_forwarded = 1;
}
}
break;
case DC_MIMETYPE_IMAGE:
case DC_MIMETYPE_AUDIO:
case DC_MIMETYPE_VIDEO:
case DC_MIMETYPE_FILE:
case DC_MIMETYPE_AC_SETUP_FILE:
{
/* try to get file name from
`Content-Disposition: ... filename*=...`
or `Content-Disposition: ... filename*0*=... filename*1*=... filename*2*=...`
or `Content-Disposition: ... filename=...` */
dc_strbuilder_t filename_parts;
dc_strbuilder_init(&filename_parts, 0);
for (clistiter* cur1 = clist_begin(mime->mm_mime_fields->fld_list); cur1!=NULL; cur1 = clist_next(cur1))
{
struct mailmime_field* field = (struct mailmime_field*)clist_content(cur1);
if (field && field->fld_type==MAILMIME_FIELD_DISPOSITION && field->fld_data.fld_disposition)
{
struct mailmime_disposition* file_disposition = field->fld_data.fld_disposition;
if (file_disposition)
{
for (clistiter* cur2 = clist_begin(file_disposition->dsp_parms); cur2!=NULL; cur2 = clist_next(cur2))
{
struct mailmime_disposition_parm* dsp_param = (struct mailmime_disposition_parm*)clist_content(cur2);
if (dsp_param)
{
if (dsp_param->pa_type==MAILMIME_DISPOSITION_PARM_PARAMETER
&& dsp_param->pa_data.pa_parameter
&& dsp_param->pa_data.pa_parameter->pa_name
&& strncmp(dsp_param->pa_data.pa_parameter->pa_name, "filename*", 9)==0)
{
dc_strbuilder_cat(&filename_parts, dsp_param->pa_data.pa_parameter->pa_value); // we assume the filename*?* parts are in order, not seen anything else yet
}
else if (dsp_param->pa_type==MAILMIME_DISPOSITION_PARM_FILENAME)
{
desired_filename = dc_decode_header_words(dsp_param->pa_data.pa_filename); // this is used only if the parts buffer stays empty
}
}
}
}
break;
}
}
if (strlen(filename_parts.buf)) {
free(desired_filename);
desired_filename = dc_decode_ext_header(filename_parts.buf);
}
free(filename_parts.buf);
/* try to get file name from `Content-Type: ... name=...` */
if (desired_filename==NULL) {
struct mailmime_parameter* param = mailmime_find_ct_parameter(mime, "name");
if (param && param->pa_value && param->pa_value[0]) {
desired_filename = dc_strdup(param->pa_value);// is already decoded, see #162
}
}
/* if there is still no filename, guess one */
if (desired_filename==NULL) {
if (mime->mm_content_type && mime->mm_content_type->ct_subtype) {
desired_filename = dc_mprintf("file.%s", mime->mm_content_type->ct_subtype);
}
else {