htp_tx_t *htp_tx_create(htp_connp_t *connp) {
if (connp == NULL) return NULL;
htp_tx_t *tx = calloc(1, sizeof (htp_tx_t));
if (tx == NULL) return NULL;
tx->connp = connp;
tx->conn = connp->conn;
tx->cfg = connp->cfg;
tx->is_config_shared = HTP_CONFIG_SHARED;
// Request fields.
tx->request_progress = HTP_REQUEST_NOT_STARTED;
tx->request_protocol_number = HTP_PROTOCOL_UNKNOWN;
tx->request_content_length = -1;
tx->parsed_uri_raw = htp_uri_alloc();
if (tx->parsed_uri_raw == NULL) {
htp_tx_destroy_incomplete(tx);
return NULL;
}
tx->request_headers = htp_table_create(32);
if (tx->request_headers == NULL) {
htp_tx_destroy_incomplete(tx);
return NULL;
}
tx->request_params = htp_table_create(32);
if (tx->request_params == NULL) {
htp_tx_destroy_incomplete(tx);
return NULL;
}
// Response fields.
tx->response_progress = HTP_RESPONSE_NOT_STARTED;
tx->response_status = NULL;
tx->response_status_number = HTP_STATUS_UNKNOWN;
tx->response_protocol_number = HTP_PROTOCOL_UNKNOWN;
tx->response_content_length = -1;
tx->response_headers = htp_table_create(32);
if (tx->response_headers == NULL) {
htp_tx_destroy_incomplete(tx);
return NULL;
}
return tx;
}
htp_status_t htp_tx_destroy(htp_tx_t *tx) {
if (tx == NULL) return HTP_ERROR;
if (!htp_tx_is_complete(tx)) return HTP_ERROR;
htp_tx_destroy_incomplete(tx);
return HTP_OK;
}
void htp_conn_destroy(htp_conn_t *conn) {
if (conn == NULL) return;
if (conn->transactions != NULL) {
// Destroy individual transactions. Do note that iterating
// using the iterator does not work here because some of the
// list element may be NULL (and with the iterator it is impossible
// to distinguish a NULL element from the end of the list).
for (size_t i = 0, n = htp_list_size(conn->transactions); i < n; i++) {
htp_tx_t *tx = htp_list_get(conn->transactions, i);
if (tx != NULL) {
htp_tx_destroy_incomplete(tx);
}
}
htp_list_destroy(conn->transactions);
conn->transactions = NULL;
}
if (conn->messages != NULL) {
// Destroy individual messages.
for (size_t i = 0, n = htp_list_size(conn->messages); i < n; i++) {
htp_log_t *l = htp_list_get(conn->messages, i);
free((void *) l->msg);
free(l);
}
htp_list_destroy(conn->messages);
conn->messages = NULL;
}
if (conn->server_addr != NULL) {
free(conn->server_addr);
}
if (conn->client_addr != NULL) {
free(conn->client_addr);
}
free(conn);
}
