/**
* Free stream data.
*
* @param[in] sd
*/
void free_stream_data(stream_data *sd) {
if (sd == NULL) return;
// Free stream chunks, if any
if (sd->chunks != NULL) {
for (int i = 0, n = htp_list_size(sd->chunks); i < n; i++) {
chunk_t *chunk = htp_list_get(sd->chunks, i);
free(chunk->data);
free(chunk);
}
htp_list_destroy(sd->chunks);
sd->chunked = NULL;
}
// Free inbound chunks, if any
if (sd->inbound_chunks != NULL) {
for (int i = 0, n = htp_list_size(sd->inbound_chunks); i < n; i++) {
chunk_t *chunk = htp_list_get(sd->inbound_chunkds, i);
free(chunk->data);
free(chunk);
}
htp_list_destroy(sd->inbound_chunks);
sd->inbound_chunks = NULL;
}
// Free outbound chunks, if any
if (sd->outbound_chunks != NULL) {
for (int i = 0, n = htp_list_size(sd->outbound_chunks); i < n; i++) {
chunk_t *chunk = htp_list_get(sd->outbound_chunkds, i);
free(chunk->data);
free(chunk);
}
htp_list_destroy(sd->outbound_chunks);
sd->outbound_chunks = NULL;
}
// Close the stream file, if we have it open
if (sd->fd != -1) {
close(sd->fd);
}
free(sd);
}
void htp_table_destroy(htp_table_t *table) {
if (table == NULL) return;
htp_table_clear(table);
htp_list_destroy(table->list);
table->list = NULL;
free(table);
}
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);
}
void bstr_builder_destroy(bstr_builder_t *bb) {
if (bb == NULL) return;
// Destroy any pieces we might have
for (size_t i = 0, n = htp_list_size(bb->pieces); i < n; i++) {
bstr *b = htp_list_get(bb->pieces, i);
bstr_free(b);
}
htp_list_destroy(bb->pieces);
free(bb);
}
htp_conn_t *htp_conn_create(void) {
htp_conn_t *conn = calloc(1, sizeof (htp_conn_t));
if (conn == NULL) return NULL;
conn->transactions = htp_list_create(16);
if (conn->transactions == NULL) {
free(conn);
return NULL;
}
conn->messages = htp_list_create(8);
if (conn->messages == NULL) {
htp_list_destroy(conn->transactions);
conn->transactions = NULL;
free(conn);
return NULL;
}
return conn;
}
void htp_tx_destroy(htp_tx_t *tx) {
bstr_free(tx->request_line);
bstr_free(tx->request_line_raw);
bstr_free(tx->request_method);
bstr_free(tx->request_uri);
bstr_free(tx->request_uri_normalized);
bstr_free(tx->request_protocol);
bstr_free(tx->request_headers_sep);
if (tx->parsed_uri != NULL) {
bstr_free(tx->parsed_uri->scheme);
bstr_free(tx->parsed_uri->username);
bstr_free(tx->parsed_uri->password);
bstr_free(tx->parsed_uri->hostname);
bstr_free(tx->parsed_uri->port);
bstr_free(tx->parsed_uri->path);
bstr_free(tx->parsed_uri->query);
bstr_free(tx->parsed_uri->fragment);
free(tx->parsed_uri);
}
if (tx->parsed_uri_incomplete != NULL) {
bstr_free(tx->parsed_uri_incomplete->scheme);
bstr_free(tx->parsed_uri_incomplete->username);
bstr_free(tx->parsed_uri_incomplete->password);
bstr_free(tx->parsed_uri_incomplete->hostname);
bstr_free(tx->parsed_uri_incomplete->port);
bstr_free(tx->parsed_uri_incomplete->path);
bstr_free(tx->parsed_uri_incomplete->query);
bstr_free(tx->parsed_uri_incomplete->fragment);
free(tx->parsed_uri_incomplete);
}
// Destroy request_header_lines.
if (tx->request_header_lines != NULL) {
for (int i = 0, n = htp_list_size(tx->request_header_lines); i < n; i++) {
htp_header_line_t *hl = htp_list_get(tx->request_header_lines, i);
bstr_free(hl->line);
// No need to destroy hl->header because
// htp_header_line_t does not own it.
free(hl);
}
htp_list_destroy(tx->request_header_lines);
tx->request_header_lines = NULL;
}
// Destroy request_headers.
if (tx->request_headers != NULL) {
htp_header_t *h = NULL;
for (int i = 0, n = htp_table_size(tx->request_headers); i < n; i++) {
h = htp_table_get_index(tx->request_headers, i, NULL);
bstr_free(h->name);
bstr_free(h->value);
free(h);
}
htp_table_destroy(tx->request_headers);
}
if (tx->request_headers_raw != NULL) {
bstr_free(tx->request_headers_raw);
}
if (tx->response_headers_raw != NULL) {
bstr_free(tx->response_headers_raw);
}
bstr_free(tx->response_line);
bstr_free(tx->response_line_raw);
bstr_free(tx->response_protocol);
bstr_free(tx->response_status);
bstr_free(tx->response_message);
bstr_free(tx->response_headers_sep);
// Destroy response_header_lines.
if (tx->response_header_lines != NULL) {
for (int i = 0, n = htp_list_size(tx->response_header_lines); i < n; i++) {
htp_header_line_t *hl = htp_list_get(tx->response_header_lines, i);
bstr_free(hl->line);
// No need to destroy hl->header because
// htp_header_line_t does not own it.
free(hl);
}
htp_list_destroy(tx->response_header_lines);
tx->response_header_lines = NULL;
}
// Destroy response headers.
if (tx->response_headers != NULL) {
htp_header_t *h = NULL;
for (int i = 0, n = htp_table_size(tx->response_headers); i < n; i++) {
h = htp_table_get_index(tx->response_headers, i, NULL);
bstr_free(h->name);
bstr_free(h->value);
free(h);
}
htp_table_destroy(tx->response_headers);
}
// Tell the connection to remove this transaction from the list.
htp_conn_remove_tx(tx->conn, tx);
// Invalidate the pointer to this transactions held
// by the connection parser. This is to allow a transaction
// to be destroyed from within the final response callback.
if (tx->connp != NULL) {
if (tx->connp->out_tx == tx) {
tx->connp->out_tx = NULL;
}
}
bstr_free(tx->request_content_type);
bstr_free(tx->response_content_type);
// Parsers
htp_urlenp_destroy(tx->request_urlenp_query);
htp_urlenp_destroy(tx->request_urlenp_body);
htp_mpartp_destroy(tx->request_mpartp);
// Request parameters
htp_param_t *param = NULL;
for (int i = 0, n = htp_table_size(tx->request_params); i < n; i++) {
param = htp_table_get_index(tx->request_params, i, NULL);
free(param->name);
free(param->value);
free(param);
}
htp_table_destroy(tx->request_params);
// Request cookies
if (tx->request_cookies != NULL) {
bstr *b = NULL;
for (int i = 0, n = htp_table_size(tx->request_cookies); i < n; i++) {
b = htp_table_get_index(tx->request_cookies, i, NULL);
bstr_free(b);
}
htp_table_destroy(tx->request_cookies);
}
htp_hook_destroy(tx->hook_request_body_data);
// If we're using a private configuration, destroy it.
if (tx->is_config_shared == HTP_CONFIG_PRIVATE) {
htp_config_destroy(tx->cfg);
}
free(tx);
}