/* 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 SETUP/DESCRIBE request */
static rtsp_server_session_t* rtsp_server_session_setup_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.common.request_line.method_id == RTSP_METHOD_SETUP) {
/* create new session */
session = rtsp_server_session_create(server);
if(!session) {
return NULL;
}
session->connection = rtsp_connection;
apt_log(RTSP_LOG_MARK,APT_PRIO_INFO,"Add RTSP Session " APT_SID_FMT,session->id.buf);
apr_hash_set(rtsp_connection->session_table,session->id.buf,session->id.length,session);
}
else if(message->start_line.common.request_line.method_id == RTSP_METHOD_DESCRIBE) {
/* create new session as a communication object */
session = rtsp_server_session_create(server);
if(!session) {
return NULL;
}
session->connection = rtsp_connection;
apt_log(RTSP_LOG_MARK,APT_PRIO_INFO,"Add RTSP Session " APT_SID_FMT,session->id.buf);
apr_hash_set(rtsp_connection->session_table,session->id.buf,session->id.length,session);
}
else {
/* error case */
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Missing RTSP Session-ID");
rtsp_server_error_respond(server,rtsp_connection,message,
RTSP_STATUS_CODE_BAD_REQUEST,
RTSP_REASON_PHRASE_BAD_REQUEST);
}
return session;
}
static apt_bool_t rtsp_server_session_message_handle(rtsp_server_t *server, rtsp_server_session_t *session, rtsp_message_t *message)
{
if(message->start_line.common.request_line.method_id == RTSP_METHOD_TEARDOWN) {
rtsp_server_session_terminate_request(server,session);
return TRUE;
}
if(server->vtable->handle_message(server,session,message) != TRUE) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Handle Message "APT_SID_FMT,session->id.buf);
rtsp_server_error_respond(server,session->connection,message,
RTSP_STATUS_CODE_INTERNAL_SERVER_ERROR,
RTSP_REASON_PHRASE_INTERNAL_SERVER_ERROR);
return FALSE;
}
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;
}
static apt_bool_t rtsp_server_session_message_handle(rtsp_server_t *server, rtsp_server_session_t *session, rtsp_message_t *message)
{
if(message->start_line.common.request_line.method_id == RTSP_METHOD_TEARDOWN) {
/* remove resource */
const char *resource_name = message->start_line.common.request_line.resource_name;
apr_hash_set(session->resource_table,resource_name,APR_HASH_KEY_STRING,NULL);
if(apr_hash_count(session->resource_table) == 0) {
rtsp_server_session_terminate_request(server,session);
return TRUE;
}
}
if(server->vtable->handle_message(server,session,message) != TRUE) {
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Failed to Handle Message " APT_SID_FMT,session->id.buf);
rtsp_server_error_respond(server,session->connection,message,
RTSP_STATUS_CODE_INTERNAL_SERVER_ERROR,
RTSP_REASON_PHRASE_INTERNAL_SERVER_ERROR);
return FALSE;
}
return TRUE;
}