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 transport_message* msg = client_recv( client, timeout );
12 if(msg == NULL) return 0;
13 debug_handler( "Received message from transport code from %s", msg->sender );
14 int status = osrf_stack_transport_handler( msg, NULL );
17 transport_message* m = client_recv( client, 0 );
19 debug_handler( "Received additional message from transport code");
20 status = osrf_stack_transport_handler( m, NULL );
22 debug_handler( "osrf_stack_process returning with only 1 received message" );
32 // -----------------------------------------------------------------------------
33 // Entry point into the stack
34 // -----------------------------------------------------------------------------
35 int osrf_stack_transport_handler( transport_message* msg, char* my_service ) {
39 debug_handler( "Transport handler received new message \nfrom %s "
40 "to %s with body \n\n%s\n", msg->sender, msg->recipient, msg->body );
42 if(! msg->thread && ! msg->is_error ) {
43 warning_handler("Received a non-error message with no thread trace... dropping");
47 osrf_app_session* session = osrf_app_session_find_session( msg->thread );
50 session = osrf_app_server_session_init( msg->thread, my_service, msg->sender);
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 );
62 /* XXX ERROR CHECKING, BAD JSON, ETC... */
64 for( i = 0; i != num_msgs; i++ ) {
66 /* if we've received a jabber layer error message (probably talking to
67 someone who no longer exists) and we're not talking to the original
68 remote id for this server, consider it a redirect and pass it up */
70 warning_handler( " !!! Received Jabber layer error message" );
72 if(strcmp(session->remote_id,session->orig_remote_id)) {
73 warning_handler( "Treating jabber error as redirect for tt [%d] "
74 "and session [%s]", arr[i]->thread_trace, session->session_id );
76 arr[i]->m_type = STATUS;
77 arr[i]->status_code = OSRF_STATUS_REDIRECTED;
80 warning_handler(" * Jabber Error is for top level remote id [%s], no one "
81 "to send my message too!!!", session->remote_id );
85 osrf_stack_message_handler( session, arr[i] );
89 debug_handler("after msg delete");
94 int osrf_stack_message_handler( osrf_app_session* session, osrf_message* msg ) {
95 if(session == NULL || msg == NULL)
98 osrf_message* ret_msg = NULL;
100 if( session->type == OSRF_SESSION_CLIENT )
101 ret_msg = _do_client( session, msg );
103 ret_msg= _do_server( session, msg );
106 debug_handler("passing message %d / session %s to app handler",
107 msg->thread_trace, session->session_id );
108 osrf_stack_application_handler( session, ret_msg );
110 osrf_message_free(msg);
116 /** If we return a message, that message should be passed up the stack,
117 * if we return NULL, we're finished for now...
119 osrf_message* _do_client( osrf_app_session* session, osrf_message* msg ) {
120 if(session == NULL || msg == NULL)
123 osrf_message* new_msg;
125 if( msg->m_type == STATUS ) {
127 switch( msg->status_code ) {
130 debug_handler("We connected successfully");
131 session->state = OSRF_SESSION_CONNECTED;
132 debug_handler( "State: %x => %s => %d", session, session->session_id, session->state );
135 case OSRF_STATUS_COMPLETE:
136 osrf_app_session_set_complete( session, msg->thread_trace );
139 case OSRF_STATUS_CONTINUE:
140 osrf_app_session_request_reset_timeout( session, msg->thread_trace );
143 case OSRF_STATUS_REDIRECTED:
144 osrf_app_session_reset_remote( session );
145 session->state = OSRF_SESSION_DISCONNECTED;
146 osrf_app_session_request_resend( session, msg->thread_trace );
149 case OSRF_STATUS_EXPFAILED:
150 osrf_app_session_reset_remote( session );
151 session->state = OSRF_SESSION_DISCONNECTED;
152 /* set the session to 'stateful' then resend */
153 // osrf_app_session_request_resend( session, msg->thread_trace );
156 case OSRF_STATUS_TIMEOUT:
157 osrf_app_session_reset_remote( session );
158 session->state = OSRF_SESSION_DISCONNECTED;
159 osrf_app_session_request_resend( session, msg->thread_trace );
164 new_msg = osrf_message_init( RESULT, msg->thread_trace, msg->protocol );
165 osrf_message_set_status_info( new_msg,
166 msg->status_name, msg->status_text, msg->status_code );
167 warning_handler("The stack doesn't know what to do with "
168 "the provided message code: %d, name %s. Passing UP.",
169 msg->status_code, msg->status_name );
170 new_msg->is_exception = 1;
171 osrf_app_session_set_complete( session, msg->thread_trace );
172 osrf_message_free(msg);
178 } else if( msg->m_type == RESULT )
186 /** If we return a message, that message should be passed up the stack,
187 * if we return NULL, we're finished for now...
189 osrf_message* _do_server( osrf_app_session* session, osrf_message* msg ) {
191 if(session == NULL || msg == NULL) return NULL;
193 debug_handler("Server received message of type %d", msg->m_type );
195 switch( msg->m_type ) {
201 osrf_app_session_destroy(session);
205 /* handle connect message */
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 );