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doubango/tinySIP/src/dialogs/tsip_dialog_register.server.c

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/*
* Copyright (C) 2010-2011 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as publishd by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DOUBANGO.
*
*/
#include "tinysip/dialogs/tsip_dialog_register.h"
#include "tinysip/dialogs/tsip_dialog_register.common.h"
/* ======================== external functions ======================== */
extern int tsip_dialog_register_send_RESPONSE(tsip_dialog_register_t *self, const tsip_request_t* request, short code, const char* phrase);
/* ======================== transitions ======================== */
static int s0000_Started_2_Terminated_X_iREGISTER(va_list *app);
static int s0000_Started_2_Incoming_X_iREGISTER(va_list *app);
static int s0000_Incoming_2_Connected_X_Accept(va_list *app);
static int s0000_Incoming_2_Terminated_X_Terminates(va_list *app);
static int s0000_Connected_2_Connected_X_iREGISTER(va_list *app);
static int s0000_Connected_2_Terminated_X_iREGISTER(va_list *app);
/* ======================== conds ======================== */
static tsk_bool_t _fsm_cond_not_served_here(tsip_dialog_register_t* dialog, tsip_message_t* message)
{
#if 0 // FIXME: Have to disabled only when in proxy mode
if(message && TSIP_REQUEST_IS_REGISTER(message)) {
if(tsk_object_cmp(TSIP_DIALOG_GET_STACK(dialog)->network.realm, message->line.request.uri) != 0) {
tsip_dialog_register_send_RESPONSE(dialog, TSIP_MESSAGE_AS_REQUEST(message), 404, "Domain not served here");
return tsk_true;
}
}
#endif
return tsk_false;
}
static tsk_bool_t _fsm_cond_server_unregistering(tsip_dialog_register_t* dialog, tsip_message_t* message)
{
if(message && dialog->is_server) {
int64_t expires = tsip_message_getExpires(message);
dialog->unregistering = (expires == 0);
return dialog->unregistering;
}
return tsk_false;
}
static tsk_bool_t _fsm_cond_server_registering(tsip_dialog_register_t* dialog, tsip_message_t* message)
{
return !_fsm_cond_server_unregistering(dialog, message);
}
int tsip_dialog_register_server_init(tsip_dialog_register_t *self)
{
return tsk_fsm_set(TSIP_DIALOG_GET_FSM(self),
/*=======================
* === Started ===
*/
// Started -> (Domain Not Served here) -> Terminated
TSK_FSM_ADD(_fsm_state_Started, _fsm_action_iREGISTER, _fsm_cond_not_served_here, _fsm_state_Terminated, s0000_Started_2_Terminated_X_iREGISTER, "s0000_Started_2_Terminated_X_iREGISTER"),
// Started -> (All is OK and we are not unRegistering) -> Trying
TSK_FSM_ADD(_fsm_state_Started, _fsm_action_iREGISTER, _fsm_cond_server_registering, _fsm_state_Incoming, s0000_Started_2_Incoming_X_iREGISTER, "s0000_Started_2_Incoming_X_iREGISTER"),
/*=======================
* === Incoming ===
*/
// Incoming -> (Accept) -> Connected
TSK_FSM_ADD_ALWAYS(_fsm_state_Incoming, _fsm_action_accept, _fsm_state_Connected, s0000_Incoming_2_Connected_X_Accept, "s0000_Incoming_2_Connected_X_Accept"),
// Incoming -> (iRegister) -> Incoming
TSK_FSM_ADD(_fsm_state_Incoming, _fsm_action_iREGISTER, _fsm_cond_server_registering, _fsm_state_Incoming, tsk_null, "s0000_Incoming_2_Incoming_X_iREGISTER"),
// Incoming -> (iRegister, expires=0) -> Terminated
TSK_FSM_ADD(_fsm_state_Incoming, _fsm_action_iREGISTER, _fsm_cond_server_unregistering, _fsm_state_Terminated, tsk_null, "s0000_Incoming_2_Terminated_X_iREGISTER"),
// Incoming -> (Reject) -> Terminated
TSK_FSM_ADD_ALWAYS(_fsm_state_Incoming, _fsm_action_reject, _fsm_state_Terminated, s0000_Incoming_2_Terminated_X_Terminates, "s0000_Incoming_2_Terminated_X_Terminates"),
// Incoming -> (Hangup) -> Terminated
TSK_FSM_ADD_ALWAYS(_fsm_state_Incoming, _fsm_action_hangup, _fsm_state_Terminated, s0000_Incoming_2_Terminated_X_Terminates, "s0000_Incoming_2_Terminated_X_Terminates"),
/*=======================
* === Connected ===
*/
// Connected -> (Register) -> Connected
TSK_FSM_ADD(_fsm_state_Connected, _fsm_action_iREGISTER, _fsm_cond_server_registering, _fsm_state_Connected, s0000_Connected_2_Connected_X_iREGISTER, "s0000_Connected_2_Connected_X_iREGISTER"),
// Connected -> (UnRegister) -> Terminated
TSK_FSM_ADD(_fsm_state_Connected, _fsm_action_iREGISTER, _fsm_cond_server_unregistering, _fsm_state_Terminated, s0000_Connected_2_Terminated_X_iREGISTER, "s0000_Connected_2_Terminated_X_iREGISTER"),
// Connected -> (TimedOut) -> Terminated
// Connected -> (Refresh OK) -> Connected
// Connected -> (Refresh NOK) -> Terminated
TSK_FSM_ADD_NULL());
}
//--------------------------------------------------------
// == STATE MACHINE BEGIN ==
//--------------------------------------------------------
/* Started -> (Failure) -> Terminated
*/
int s0000_Started_2_Terminated_X_iREGISTER(va_list *app)
{
return 0;
/*tsip_dialog_register_t *self;
const tsip_action_t* action;
self = va_arg(*app, tsip_dialog_register_t *);
va_arg(*app, const tsip_message_t *);
action = va_arg(*app, const tsip_action_t *);
TSIP_DIALOG(self)->running = tsk_true;
tsip_dialog_set_curr_action(TSIP_DIALOG(self), action);
// alert the user
TSIP_DIALOG_SIGNAL(self, tsip_event_code_dialog_connecting, "Dialog connecting");
return send_REGISTER(self, tsk_true);*/
}
/* Started -> (All is OK and we are Registering) -> Incoming
*/
int s0000_Started_2_Incoming_X_iREGISTER(va_list *app)
{
tsip_dialog_register_t *self = va_arg(*app, tsip_dialog_register_t *);
tsip_request_t *request = va_arg(*app, tsip_request_t *);
// set as server side dialog
TSIP_DIALOG_REGISTER(self)->is_server = tsk_true;
/* update last REGISTER */
TSK_OBJECT_SAFE_FREE(self->last_iRegister);
self->last_iRegister = tsk_object_ref(request);
/* alert the user (session) */
TSIP_DIALOG_REGISTER_SIGNAL(self, tsip_i_newreg,
tsip_event_code_dialog_request_incoming, "Incoming New Register", request);
return 0;
}
/* Incoming -> (Accept) -> Connected
*/
int s0000_Incoming_2_Connected_X_Accept(va_list *app)
{
int ret;
tsip_dialog_register_t *self;
self = va_arg(*app, tsip_dialog_register_t *);
/* send 2xx OK */
if((ret = tsip_dialog_register_send_RESPONSE(self, self->last_iRegister, 200, "OK"))) {
return ret;
}
/* alert the user (dialog) */
TSIP_DIALOG_SIGNAL(self, tsip_event_code_dialog_connected, "Dialog connected");
return ret;
}
/* Incoming -> (Reject) -> Terminated
*/
int s0000_Incoming_2_Terminated_X_Terminates(va_list *app)
{
int ret;
short code;
const char* phrase;
char* reason = tsk_null;
tsip_dialog_register_t *self;
const tsip_action_t* action;
self = va_arg(*app, tsip_dialog_register_t *);
va_arg(*app, const tsip_message_t *);
action = va_arg(*app, const tsip_action_t *);
/* Send Reject */
code = action->line_resp.code>=300 ? action->line_resp.code : 600;
phrase = action->line_resp.phrase ? action->line_resp.phrase : "Not Supported";
tsk_sprintf(&reason, "SIP; cause=%hi; text=\"%s\"", code, phrase);
ret = tsip_dialog_register_send_RESPONSE(self, self->last_iRegister, code, phrase);
TSK_FREE(reason);
return ret;
}
/* Connected -> (register) -> Connected
*/
static int s0000_Connected_2_Connected_X_iREGISTER(va_list *app)
{
tsip_dialog_register_t *self = va_arg(*app, tsip_dialog_register_t *);
const tsip_request_t *request = va_arg(*app, const tsip_request_t *);
TSK_OBJECT_SAFE_FREE(self->last_iRegister);
self->last_iRegister = tsk_object_ref((tsk_object_t*)request);
/* send 2xx OK */
return tsip_dialog_register_send_RESPONSE(self, self->last_iRegister, 200, "OK");
}
/* Connected -> (Unregister) -> Terminated
*/
int s0000_Connected_2_Terminated_X_iREGISTER(va_list *app)
{
int ret;
tsip_dialog_register_t *self = va_arg(*app, tsip_dialog_register_t *);
tsip_request_t *request = va_arg(*app, tsip_request_t *);
/* update last REGISTER */
TSK_OBJECT_SAFE_FREE(self->last_iRegister);
self->last_iRegister = tsk_object_ref(request);
/* send 2xx OK */
if((ret = tsip_dialog_register_send_RESPONSE(self, self->last_iRegister, 200, "OK"))) {
return ret;
}
/* alert the user (session) */
TSIP_DIALOG_REGISTER_SIGNAL(self, tsip_i_unregister,
tsip_event_code_dialog_request_incoming, "Incoming Request", request);
return 0;
}
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