exinsubscription_api.c

libeXosip2-3.0.3.tar.gz

    {
      eXosip_notify_dialog_find (did, &jn, &jd);
    }
  if (jd == NULL || jn == NULL)
    {
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: No incoming subscription here?\n"));
      return -1;
    }

  transaction = NULL;
  transaction = eXosip_find_last_out_notify (jn, jd);
  if (transaction != NULL)
    {
      if (transaction->state != NICT_TERMINATED &&
          transaction->state != NIST_TERMINATED &&
          transaction->state != NICT_COMPLETED &&
          transaction->state != NIST_COMPLETED)
        return -1;
    }

  transport = NULL;
  if (transaction == NULL)
    transaction = jn->n_inc_tr;

  if (transaction != NULL && transaction->orig_request != NULL)
    transport = _eXosip_transport_protocol (transaction->orig_request);

  transaction = NULL;

  if (transport == NULL)
    i = _eXosip_build_request_within_dialog (request, method, jd->d_dialog, "UDP");
  else
    i =
      _eXosip_build_request_within_dialog (request, method, jd->d_dialog,
                                           transport);
  if (i != 0)
    return -2;

  return 0;
}

int
eXosip_insubscription_send_request (int did, osip_message_t * request)
{
  eXosip_dialog_t *jd = NULL;
  eXosip_notify_t *jn = NULL;

  osip_transaction_t *transaction;
  osip_event_t *sipevent;
  int i;

  if (request == NULL)
    return -1;

  if (did > 0)
    {
      eXosip_notify_dialog_find (did, &jn, &jd);
    }
  if (jd == NULL || jn == NULL)
    {
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: No incoming subscription here?\n"));
      osip_message_free (request);
      return -1;
    }

  transaction = NULL;
  transaction = eXosip_find_last_out_notify (jn, jd);
  if (transaction != NULL)
    {
      if (transaction->state != NICT_TERMINATED &&
          transaction->state != NIST_TERMINATED &&
          transaction->state != NICT_COMPLETED &&
          transaction->state != NIST_COMPLETED)
        {
          osip_message_free (request);
          return -1;
        }
      transaction = NULL;
    }

  i = _eXosip_transaction_init (&transaction, NICT, eXosip.j_osip, request);
  if (i != 0)
    {
      osip_message_free (request);
      return -1;
    }

  osip_list_add (jd->d_out_trs, transaction, 0);

  sipevent = osip_new_outgoing_sipmessage (request);
  sipevent->transactionid = transaction->transactionid;

  osip_transaction_set_your_instance (transaction,
                                      __eXosip_new_jinfo (NULL, jd, NULL, jn));
  osip_transaction_add_event (transaction, sipevent);
  __eXosip_wakeup ();
  return 0;
}

int
_eXosip_insubscription_send_request_with_credential (eXosip_notify_t * jn,
                                                     eXosip_dialog_t * jd,
                                                     osip_transaction_t * out_tr)
{
  osip_transaction_t *tr = NULL;
  osip_message_t *msg = NULL;
  osip_event_t *sipevent;

  int cseq;
  osip_via_t *via;
  int i;

  if (jn == NULL)
    return -1;
  if (jd != NULL)
    {
      if (jd->d_out_trs == NULL)
        return -1;
    }

  if (out_tr == NULL)
    {
      out_tr = eXosip_find_last_out_notify (jn, jd);
    }

  if (out_tr == NULL
      || out_tr->orig_request == NULL || out_tr->last_response == NULL)
    return -1;

  osip_message_clone (out_tr->orig_request, &msg);
  if (msg == NULL)
    {
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: could not clone msg for authentication\n"));
      return -1;
    }

  via = (osip_via_t *) osip_list_get (&msg->vias, 0);
  if (via == NULL || msg->cseq == NULL || msg->cseq->number == NULL)
    {
      osip_message_free (msg);
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: missing via or cseq header\n"));
      return -1;
    }

  /* increment cseq */
  cseq = atoi (msg->cseq->number);
  osip_free (msg->cseq->number);
  msg->cseq->number = strdup_printf ("%i", cseq + 1);
  if (jd != NULL && jd->d_dialog != NULL)
    {
      jd->d_dialog->local_cseq++;
    }

  i = eXosip_update_top_via(msg);
  if (i!=0)
    {
      osip_message_free (msg);
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: unsupported protocol\n"));
      return -1;
    }

  eXosip_add_authentication_information (msg, out_tr->last_response);
  osip_message_force_update (msg);

  i = _eXosip_transaction_init (&tr, NICT, eXosip.j_osip, msg);

  if (i != 0)
    {
      osip_message_free (msg);
      return -1;
    }

  /* add the new tr for the current dialog */
  osip_list_add (jd->d_out_trs, tr, 0);

  sipevent = osip_new_outgoing_sipmessage (msg);

  osip_transaction_set_your_instance (tr, __eXosip_new_jinfo (NULL, jd, NULL, jn));
  osip_transaction_add_event (tr, sipevent);

  eXosip_update ();             /* fixed? */
  __eXosip_wakeup ();
  return 0;
}

int
_eXosip_insubscription_auto_send_notify (int did,
                          int subscription_status, int subscription_reason)
{
	osip_message_t *notify;
	int i;
	char xml[4096];
	char *entity;
	eXosip_call_t *jc;
	eXosip_dialog_t *jd;

	i = eXosip_insubscription_build_notify (did, subscription_status,
										  subscription_reason, &notify);
	if (i != 0)
	{
		return -1;
	}

	/* build dialog xml state */
	memset(xml, 0, sizeof(xml));

	osip_uri_to_str(notify->from->url , &entity);
	if (entity==NULL)
		return -1;
	snprintf(xml, sizeof(xml),
		   "<?xml version=\"1.0\"?>" "\r\n"
		   "<dialog-info xmlns=\"urn:ietf:params:xml:ns:dialog-info\"" "\r\n"
		   "	version=\"2\" state=\"full\"" "\r\n"
		   "	entity=\"%s\">" "\r\n",
		   entity);
	osip_free(entity);

	/* loop over all jc/jd */
	for (jc = eXosip.j_calls; jc != NULL; jc = jc->next)
	{
		for (jd = jc->c_dialogs; jd != NULL; jd = jd->next)
		{
			if (jd->d_dialog == NULL)     /* finished call */
			{
			}
			else
			{
				char tmp_dialog[2048];
				char direction[20];
				char dlg_state[20];
				char *remote_uri=NULL;

				if (jd->d_dialog->type == CALLER)
					strcpy(direction, "initiator");
				else
					strcpy(direction, "recipient");
				if (jd->d_dialog->state == DIALOG_CONFIRMED)
					strcpy(dlg_state, "confirmed");
				else
					strcpy(dlg_state, "early");

				if (jd->d_dialog->remote_uri!=NULL
					&&jd->d_dialog->remote_uri->url!=NULL)
				{
					osip_uri_to_str(jd->d_dialog->remote_uri->url, &remote_uri);
				}
				if (remote_uri!=NULL)
				{
					/* add dialog info */
					snprintf(tmp_dialog, sizeof(tmp_dialog),
						"	<dialog id=\"%s\" call-id=\"%s\"" "\r\n"
						"		local-tag=\"%s\" remote-tag=\"%s\"" "\r\n"
						"		direction=\"%s\">" "\r\n"
						"		<state>%s</state>" "\r\n"
						"		<remote>" "\r\n"
						"			<identity>%s</identity>" "\r\n"
						"		</remote>" "\r\n"
						"	</dialog>" "\r\n",
						jd->d_dialog->call_id,
						jd->d_dialog->call_id,
						jd->d_dialog->local_tag,
						jd->d_dialog->remote_tag,
						direction,
						dlg_state,
						remote_uri);
					strcat(xml, tmp_dialog);
				}
			}
		}
	}
	strcat(xml, "</dialog-info>" "\r\n");
	osip_message_set_content_type (notify, "application/dialog-info+xml");
	osip_message_set_body (notify, xml, strlen(xml));

	return eXosip_insubscription_send_request (did, notify);
}

int
eXosip_insubscription_automatic(eXosip_event_t *evt)
{
	eXosip_dialog_t *jd = NULL;
	eXosip_notify_t *jn = NULL;

	osip_header_t *event_header;
	if (evt->did<=0 || evt->nid<=0)
		return -1;
	if (evt->request==NULL)
		return -1;

	eXosip_notify_dialog_find (evt->did, &jn, &jd);
	if (jd == NULL || jn == NULL)
	{
		OSIP_TRACE (osip_trace
				  (__FILE__, __LINE__, OSIP_ERROR, NULL,
				   "eXosip: No incoming subscription here?\n"));
		return -1;
	}

    osip_message_header_get_byname (evt->request , "event",
                                    0, &event_header);
    if (event_header == NULL || event_header->hvalue == NULL)
	{
		eXosip_insubscription_send_answer (evt->tid, 400, NULL);
		return 0;
	}

	/* this event should be handled internally */
	if (osip_strcasecmp(event_header->hvalue, "dialog") == 0)
	{
		/* send 200 ok to SUBSCRIBEs */

		if (evt->type == EXOSIP_IN_SUBSCRIPTION_NEW)
		{
			osip_message_t *answer;
			int i;

			i = eXosip_insubscription_build_answer (evt->tid, 202, &answer);
			if (i == 0)
			{
				i = eXosip_insubscription_send_answer (evt->tid, 202, answer);
			}
			if (i != 0)
			{
				i = eXosip_insubscription_send_answer (evt->tid, 400, NULL);
				return 0;
			}

			/* send initial notify */
			i = _eXosip_insubscription_auto_send_notify(evt->did , EXOSIP_SUBCRSTATE_ACTIVE, PROBATION);
			if (i != 0)
			{
				/* delete subscription... */
				return 0;
			}
		}
	}
	else
	{
		eXosip_insubscription_send_answer (evt->tid, 489, NULL);
	}

	return 0;
}

#endif