1 #include "osrf_stack.h"
2 #include "osrf_application.h"
4 osrf_message* _do_client( osrf_app_session*, osrf_message* );
5 osrf_message* _do_server( osrf_app_session*, osrf_message* );
7 /* tell osrf_app_session where the stack entry is */
8 int (*osrf_stack_entry_point) (transport_client*, int) = &osrf_stack_process;
10 int osrf_stack_process( transport_client* client, int timeout ) {
11 if( !client ) return -1;
12 transport_message* msg = NULL;
14 while( (msg = client_recv( client, timeout )) ) {
15 debug_handler( "Received message from transport code from %s", msg->sender );
16 osrf_stack_transport_handler( msg, NULL );
25 // -----------------------------------------------------------------------------
26 // Entry point into the stack
27 // -----------------------------------------------------------------------------
28 osrfAppSession* osrf_stack_transport_handler( transport_message* msg, char* my_service ) {
32 debug_handler( "Transport handler received new message \nfrom %s "
33 "to %s with body \n\n%s\n", msg->sender, msg->recipient, msg->body );
35 if( msg->is_error && ! msg->thread ) {
36 warning_handler("!! Received jabber layer error for %s ... exiting\n", msg->sender );
40 if(! msg->thread && ! msg->is_error ) {
41 warning_handler("Received a non-error message with no thread trace... dropping");
45 osrf_app_session* session = osrf_app_session_find_session( msg->thread );
47 if( !session && my_service )
48 session = osrf_app_server_session_init( msg->thread, my_service, msg->sender);
50 if( !session ) return NULL;
53 debug_handler("Session [%s] found or built", session->session_id );
55 osrf_app_session_set_remote( session, msg->sender );
56 osrf_message* arr[OSRF_MAX_MSGS_PER_PACKET];
57 memset(arr, 0, OSRF_MAX_MSGS_PER_PACKET );
58 int num_msgs = osrf_message_deserialize(msg->body, arr, OSRF_MAX_MSGS_PER_PACKET);
60 debug_handler( "We received %d messages from %s", num_msgs, msg->sender );
63 for( i = 0; i != num_msgs; i++ ) {
65 /* if we've received a jabber layer error message (probably talking to
66 someone who no longer exists) and we're not talking to the original
67 remote id for this server, consider it a redirect and pass it up */
69 warning_handler( " !!! Received Jabber layer error message" );
71 if(strcmp(session->remote_id,session->orig_remote_id)) {
72 warning_handler( "Treating jabber error as redirect for tt [%d] "
73 "and session [%s]", arr[i]->thread_trace, session->session_id );
75 arr[i]->m_type = STATUS;
76 arr[i]->status_code = OSRF_STATUS_REDIRECTED;
79 warning_handler(" * Jabber Error is for top level remote id [%s], no one "
80 "to send my message too!!!", session->remote_id );
84 osrf_stack_message_handler( session, arr[i] );
88 debug_handler("after msg delete");
93 int osrf_stack_message_handler( osrf_app_session* session, osrf_message* msg ) {
94 if(session == NULL || msg == NULL)
97 osrf_message* ret_msg = NULL;
99 if( session->type == OSRF_SESSION_CLIENT )
100 ret_msg = _do_client( session, msg );
102 ret_msg= _do_server( session, msg );
105 debug_handler("passing message %d / session %s to app handler",
106 msg->thread_trace, session->session_id );
107 osrf_stack_application_handler( session, ret_msg );
109 osrf_message_free(msg);
115 /** If we return a message, that message should be passed up the stack,
116 * if we return NULL, we're finished for now...
118 osrf_message* _do_client( osrf_app_session* session, osrf_message* msg ) {
119 if(session == NULL || msg == NULL)
122 osrf_message* new_msg;
124 if( msg->m_type == STATUS ) {
126 switch( msg->status_code ) {
129 debug_handler("We connected successfully");
130 session->state = OSRF_SESSION_CONNECTED;
131 debug_handler( "State: %x => %s => %d", session, session->session_id, session->state );
134 case OSRF_STATUS_COMPLETE:
135 osrf_app_session_set_complete( session, msg->thread_trace );
138 case OSRF_STATUS_CONTINUE:
139 osrf_app_session_request_reset_timeout( session, msg->thread_trace );
142 case OSRF_STATUS_REDIRECTED:
143 osrf_app_session_reset_remote( session );
144 session->state = OSRF_SESSION_DISCONNECTED;
145 osrf_app_session_request_resend( session, msg->thread_trace );
148 case OSRF_STATUS_EXPFAILED:
149 osrf_app_session_reset_remote( session );
150 session->state = OSRF_SESSION_DISCONNECTED;
151 /* set the session to 'stateful' then resend */
152 // osrf_app_session_request_resend( session, msg->thread_trace );
155 case OSRF_STATUS_TIMEOUT:
156 osrf_app_session_reset_remote( session );
157 session->state = OSRF_SESSION_DISCONNECTED;
158 osrf_app_session_request_resend( session, msg->thread_trace );
163 new_msg = osrf_message_init( RESULT, msg->thread_trace, msg->protocol );
164 osrf_message_set_status_info( new_msg,
165 msg->status_name, msg->status_text, msg->status_code );
166 warning_handler("The stack doesn't know what to do with "
167 "the provided message code: %d, name %s. Passing UP.",
168 msg->status_code, msg->status_name );
169 new_msg->is_exception = 1;
170 osrf_app_session_set_complete( session, msg->thread_trace );
171 osrf_message_free(msg);
177 } else if( msg->m_type == RESULT )
185 /** If we return a message, that message should be passed up the stack,
186 * if we return NULL, we're finished for now...
188 osrf_message* _do_server( osrf_app_session* session, osrf_message* msg ) {
190 if(session == NULL || msg == NULL) return NULL;
192 debug_handler("Server received message of type %d", msg->m_type );
194 switch( msg->m_type ) {
200 /* session will be freed by the forker */
204 osrfAppSessionStatus( session, OSRF_STATUS_OK,
205 "osrfConnectStatus", msg->thread_trace, "Connection Successful" );
210 debug_handler("server passing message %d to application handler "
211 "for session %s", msg->thread_trace, session->session_id );
215 warning_handler("Server cannot handle message of type %d", msg->m_type );
224 int osrf_stack_application_handler( osrf_app_session* session, osrf_message* msg ) {
226 if(session == NULL || msg == NULL) return 0;
228 if(msg->m_type == RESULT && session->type == OSRF_SESSION_CLIENT) {
229 osrf_app_session_push_queue( session, msg );
233 if(msg->m_type != REQUEST) return 1;
235 char* method = msg->method_name;
236 char* app = session->remote_service;
237 jsonObject* params = msg->_params;
239 osrfAppRunMethod( app, method, session, msg->thread_trace, params );
241 osrfMessageFree(msg);