int dbox_attachment_file_get_stream(struct dbox_file *file,
struct istream **stream)
{
const char *ext_refs, *error;
int ret;
/* need to read metadata in case there are external references */
if ((ret = dbox_file_metadata_read(file)) <= 0)
return ret;
i_stream_seek(file->input, file->cur_offset + file->msg_header_size);
ext_refs = dbox_file_metadata_get(file, DBOX_METADATA_EXT_REF);
if (ext_refs == NULL)
return 1;
/* we have external references. */
T_BEGIN {
ret = dbox_attachment_file_get_stream_from(file, ext_refs,
stream, &error);
if (ret == 0) {
dbox_file_set_corrupted(file,
"Corrupted ext-refs metadata %s: %s",
ext_refs, error);
}
} T_END;
return ret;
}
int dbox_mail_metadata_read(struct dbox_mail *mail, struct dbox_file **file_r)
{
struct dbox_storage *storage =
(struct dbox_storage *)mail->imail.mail.mail.box->storage;
uoff_t offset;
if (storage->v.mail_open(mail, &offset, file_r) < 0)
return -1;
if (dbox_file_seek(*file_r, offset) <= 0)
return -1;
if (dbox_file_metadata_read(*file_r) <= 0)
return -1;
if (mail->imail.data.stream != NULL) {
/* we just messed up mail's input stream by reading metadata */
i_stream_seek((*file_r)->input, offset);
i_stream_sync(mail->imail.data.stream);
}
return 0;
}
