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->thread && ! msg->is_error ) {
36 warning_handler("Received a non-error message with no thread trace... dropping");
40 osrf_app_session* session = osrf_app_session_find_session( msg->thread );
43 session = osrf_app_server_session_init( msg->thread, my_service, msg->sender);
45 if( !session ) return NULL;
48 debug_handler("Session [%s] found or built", session->session_id );
50 osrf_app_session_set_remote( session, msg->sender );
51 osrf_message* arr[OSRF_MAX_MSGS_PER_PACKET];
52 memset(arr, 0, OSRF_MAX_MSGS_PER_PACKET );
53 int num_msgs = osrf_message_deserialize(msg->body, arr, OSRF_MAX_MSGS_PER_PACKET);
55 debug_handler( "We received %d messages from %s", num_msgs, msg->sender );
58 for( i = 0; i != num_msgs; i++ ) {
60 /* if we've received a jabber layer error message (probably talking to
61 someone who no longer exists) and we're not talking to the original
62 remote id for this server, consider it a redirect and pass it up */
64 warning_handler( " !!! Received Jabber layer error message" );
66 if(strcmp(session->remote_id,session->orig_remote_id)) {
67 warning_handler( "Treating jabber error as redirect for tt [%d] "
68 "and session [%s]", arr[i]->thread_trace, session->session_id );
70 arr[i]->m_type = STATUS;
71 arr[i]->status_code = OSRF_STATUS_REDIRECTED;
74 warning_handler(" * Jabber Error is for top level remote id [%s], no one "
75 "to send my message too!!!", session->remote_id );
79 osrf_stack_message_handler( session, arr[i] );
83 debug_handler("after msg delete");
88 int osrf_stack_message_handler( osrf_app_session* session, osrf_message* msg ) {
89 if(session == NULL || msg == NULL)
92 osrf_message* ret_msg = NULL;
94 if( session->type == OSRF_SESSION_CLIENT )
95 ret_msg = _do_client( session, msg );
97 ret_msg= _do_server( session, msg );
100 debug_handler("passing message %d / session %s to app handler",
101 msg->thread_trace, session->session_id );
102 osrf_stack_application_handler( session, ret_msg );
104 osrf_message_free(msg);
110 /** If we return a message, that message should be passed up the stack,
111 * if we return NULL, we're finished for now...
113 osrf_message* _do_client( osrf_app_session* session, osrf_message* msg ) {
114 if(session == NULL || msg == NULL)
117 osrf_message* new_msg;
119 if( msg->m_type == STATUS ) {
121 switch( msg->status_code ) {
124 debug_handler("We connected successfully");
125 session->state = OSRF_SESSION_CONNECTED;
126 debug_handler( "State: %x => %s => %d", session, session->session_id, session->state );
129 case OSRF_STATUS_COMPLETE:
130 osrf_app_session_set_complete( session, msg->thread_trace );
133 case OSRF_STATUS_CONTINUE:
134 osrf_app_session_request_reset_timeout( session, msg->thread_trace );
137 case OSRF_STATUS_REDIRECTED:
138 osrf_app_session_reset_remote( session );
139 session->state = OSRF_SESSION_DISCONNECTED;
140 osrf_app_session_request_resend( session, msg->thread_trace );
143 case OSRF_STATUS_EXPFAILED:
144 osrf_app_session_reset_remote( session );
145 session->state = OSRF_SESSION_DISCONNECTED;
146 /* set the session to 'stateful' then resend */
147 // osrf_app_session_request_resend( session, msg->thread_trace );
150 case OSRF_STATUS_TIMEOUT:
151 osrf_app_session_reset_remote( session );
152 session->state = OSRF_SESSION_DISCONNECTED;
153 osrf_app_session_request_resend( session, msg->thread_trace );
158 new_msg = osrf_message_init( RESULT, msg->thread_trace, msg->protocol );
159 osrf_message_set_status_info( new_msg,
160 msg->status_name, msg->status_text, msg->status_code );
161 warning_handler("The stack doesn't know what to do with "
162 "the provided message code: %d, name %s. Passing UP.",
163 msg->status_code, msg->status_name );
164 new_msg->is_exception = 1;
165 osrf_app_session_set_complete( session, msg->thread_trace );
166 osrf_message_free(msg);
172 } else if( msg->m_type == RESULT )
180 /** If we return a message, that message should be passed up the stack,
181 * if we return NULL, we're finished for now...
183 osrf_message* _do_server( osrf_app_session* session, osrf_message* msg ) {
185 if(session == NULL || msg == NULL) return NULL;
187 debug_handler("Server received message of type %d", msg->m_type );
189 switch( msg->m_type ) {
195 osrf_app_session_destroy(session);
199 osrfAppSessionStatus( session,
200 OSRF_STATUS_OK, msg->thread_trace, "Connection Successful" );
205 debug_handler("server passing message %d to application handler "
206 "for session %s", msg->thread_trace, session->session_id );
210 warning_handler("Server cannot handle message of type %d", msg->m_type );
219 int osrf_stack_application_handler( osrf_app_session* session, osrf_message* msg ) {
221 if(session == NULL || msg == NULL) return 0;
223 if(msg->m_type == RESULT && session->type == OSRF_SESSION_CLIENT) {
224 osrf_app_session_push_queue( session, msg );
228 if(msg->m_type != REQUEST) return 1;
230 char* method = msg->method_name;
231 char* app = session->remote_service;
232 jsonObject* params = msg->_params;
234 osrfAppRunMethod( app, method, session, msg->thread_trace, params );