/* Process incoming RTSP request */
static apt_bool_t rtsp_server_session_request_process(rtsp_server_t *server, rtsp_server_connection_t *rtsp_connection, rtsp_message_t *message)
{
rtsp_server_session_t *session = NULL;
if(message->start_line.message_type != RTSP_MESSAGE_TYPE_REQUEST) {
/* received response to ANNOUNCE request/event */
return TRUE;
}
if(rtsp_header_property_check(&message->header,RTSP_HEADER_FIELD_SESSION_ID) != TRUE) {
/* no session-id specified */
session = rtsp_server_session_setup_process(server,rtsp_connection,message);
if(session) {
session->active_request = message;
if(rtsp_server_session_message_handle(server,session,message) != TRUE) {
rtsp_server_session_destroy(session);
}
}
else {
/* error case, failed to create a session */
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Failed to Create RTSP Session");
return rtsp_server_error_respond(server,rtsp_connection,message,
RTSP_STATUS_CODE_NOT_ACCEPTABLE,
RTSP_REASON_PHRASE_NOT_ACCEPTABLE);
}
return TRUE;
}
/* existing session */
session = apr_hash_get(
rtsp_connection->session_table,
message->header.session_id.buf,
message->header.session_id.length);
if(!session) {
/* error case, no such session */
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"No Such RTSP Session " APT_SID_FMT,message->header.session_id.buf);
return rtsp_server_error_respond(server,rtsp_connection,message,
RTSP_STATUS_CODE_NOT_FOUND,
RTSP_REASON_PHRASE_NOT_FOUND);
}
if(session->terminating == TRUE) {
/* error case, session is being terminated */
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Not Acceptable Request " APT_SID_FMT,message->header.session_id.buf);
return rtsp_server_error_respond(server,rtsp_connection,message,
RTSP_STATUS_CODE_NOT_ACCEPTABLE,
RTSP_REASON_PHRASE_NOT_ACCEPTABLE);
}
if(session->active_request) {
apt_log(RTSP_LOG_MARK,APT_PRIO_DEBUG,"Push RTSP Request to Queue " APT_SID_FMT,session->id.buf);
apt_list_push_back(session->request_queue,message,message->pool);
return TRUE;
}
/* handle the request */
session->active_request = message;
rtsp_server_session_message_handle(server,session,message);
return TRUE;
}
/* Process incoming RTSP request */
static apt_bool_t rtsp_server_session_request_process(rtsp_server_t *server, rtsp_server_connection_t *rtsp_connection, rtsp_message_t *message)
{
rtsp_server_session_t *session = NULL;
if(message->start_line.message_type != RTSP_MESSAGE_TYPE_REQUEST) {
/* received response to ANNOUNCE request/event */
return TRUE;
}
if(rtsp_header_property_check(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID) != TRUE) {
/* no session-id specified */
session = rtsp_server_session_setup_process(server,rtsp_connection,message);
if(session) {
session->active_request = message;
if(rtsp_server_session_message_handle(server,session,message) != TRUE) {
rtsp_server_session_destroy(session);
}
}
return TRUE;
}
/* existing session */
session = apr_hash_get(
rtsp_connection->session_table,
message->header.session_id.buf,
message->header.session_id.length);
if(!session) {
/* error case */
apt_log(APT_PRIO_WARNING,"No Such RTSP Session <%s>",message->header.session_id.buf);
return rtsp_server_error_respond(server,rtsp_connection,message,
RTSP_STATUS_CODE_NOT_FOUND,
RTSP_REASON_PHRASE_NOT_FOUND);
}
if(session->active_request) {
apt_log(APT_PRIO_DEBUG,"Push RTSP Request to Queue <%s>",session->id.buf);
apt_list_push_back(session->request_queue,message);
return TRUE;
}
/* handle the request */
session->active_request = message;
rtsp_server_session_message_handle(server,session,message);
return TRUE;
}
/* Process outgoing RTSP response */
static apt_bool_t rtsp_server_session_response_process(rtsp_server_t *server, rtsp_server_session_t *session, rtsp_message_t *message)
{
if(message->start_line.message_type == RTSP_MESSAGE_TYPE_REQUEST) {
/* RTSP ANNOUNCE request (asynch event) */
message->start_line.common.request_line.url = session->url;
if(session->id.buf) {
message->header.session_id = session->id;
rtsp_header_property_add(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID);
}
rtsp_server_message_send(server,session->connection->base,message);
return TRUE;
}
if(session->id.buf) {
message->header.session_id = session->id;
rtsp_header_property_add(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID);
}
rtsp_server_message_send(server,session->connection->base,message);
if(session->active_request) {
rtsp_message_t *request = session->active_request;
if(request->start_line.common.request_line.method_id == RTSP_METHOD_SETUP) {
if(message->start_line.common.status_line.status_code != RTSP_STATUS_CODE_OK) {
rtsp_server_session_terminate_request(server,session);
}
}
else if(request->start_line.common.request_line.method_id == RTSP_METHOD_DESCRIBE) {
rtsp_server_session_terminate_request(server,session);
}
}
session->active_request = apt_list_pop_front(session->request_queue);
if(session->active_request) {
rtsp_server_session_message_handle(server,session,session->active_request);
}
return TRUE;
}
/* Process outgoing RTSP response */
static apt_bool_t rtsp_server_session_response_process(rtsp_server_t *server, rtsp_server_session_t *session, rtsp_message_t *message)
{
apt_bool_t terminate = FALSE;
rtsp_message_t *request = NULL;
if(message->start_line.message_type == RTSP_MESSAGE_TYPE_REQUEST) {
/* RTSP ANNOUNCE request (asynch event) */
const char *resource_name = message->start_line.common.request_line.resource_name;
if(resource_name) {
request = apr_hash_get(session->resource_table,resource_name,APR_HASH_KEY_STRING);
}
if(!request) {
return FALSE;
}
message->start_line.common.request_line.url = request->start_line.common.request_line.url;
message->header.cseq = session->last_cseq;
rtsp_header_property_add(&message->header,RTSP_HEADER_FIELD_CSEQ,message->pool);
if(session->id.buf) {
message->header.session_id = session->id;
rtsp_header_property_add(&message->header,RTSP_HEADER_FIELD_SESSION_ID,message->pool);
}
rtsp_server_message_send(server,session->connection,message);
return TRUE;
}
if(!session->active_request) {
/* unexpected response */
return FALSE;
}
request = session->active_request;
if(request->start_line.common.request_line.method_id == RTSP_METHOD_DESCRIBE) {
terminate = TRUE;
}
else {
if(session->id.buf) {
message->header.session_id = session->id;
rtsp_header_property_add(&message->header,RTSP_HEADER_FIELD_SESSION_ID,message->pool);
}
if(request->start_line.common.request_line.method_id == RTSP_METHOD_SETUP) {
if(message->start_line.common.status_line.status_code == RTSP_STATUS_CODE_OK) {
/* add resource */
const char *resource_name = request->start_line.common.request_line.resource_name;
apr_hash_set(session->resource_table,resource_name,APR_HASH_KEY_STRING,request);
}
else if(apr_hash_count(session->resource_table) == 0) {
terminate = TRUE;
}
}
}
session->last_cseq = message->header.cseq;
rtsp_server_message_send(server,session->connection,message);
if(terminate == TRUE) {
session->active_request = NULL;
rtsp_server_session_terminate_request(server,session);
return TRUE;
}
session->active_request = apt_list_pop_front(session->request_queue);
if(session->active_request) {
rtsp_server_session_message_handle(server,session,session->active_request);
}
return TRUE;
}