/** Resend the request message.
*
* A resent request has completed once successfully - restarted has not.
*
* @retval 0 if request is pending
* @retval >=1 if error event has been sent
*/
int nua_client_resend_request(nua_client_request_t *cr,
int terminating)
{
if (cr) {
cr->cr_retry_count = 0;
cr->cr_challenged = 0;
if (nua_client_is_queued(cr)) {
if (terminating)
cr->cr_graceful = 1;
return 0;
}
if (terminating)
nua_client_set_terminating(cr, terminating);
if (nua_client_request_queue(cr))
return 0;
if (nua_dialog_is_reporting(cr->cr_owner->nh_ds))
return 0;
return nua_client_request_try(cr);
}
return 0;
}
static int nua_subscribe_client_request(nua_client_request_t *cr,
msg_t *msg, sip_t *sip,
tagi_t const *tags)
{
nua_dialog_usage_t *du = cr->cr_usage;
sip_time_t expires = 0;
if (cr->cr_event == nua_r_destroy || !du || du->du_shutdown)
nua_client_set_terminating(cr, 1);
if (du) {
struct event_usage *eu = nua_dialog_usage_private(du);
sip_event_t *o = sip->sip_event;
if (nua_client_bind(cr, du) < 0)
return -1;
if (eu->eu_no_id && o && o->o_id) {
/* Notifier does not handle id properly, remove it */
msg_header_remove_param(o->o_common, "id");
}
#if 0
if (cr->cr_terminating) {
/* Already terminated subscription? */
if (eu->eu_substate == nua_substate_terminated ||
eu->eu_substate == nua_substate_embryonic) {
return nua_client_return(cr, SIP_200_OK, msg);
}
}
#endif
nua_dialog_usage_reset_refresh(du); /* during SUBSCRIBE transaction */
if (cr->cr_terminating || cr->cr_event != nua_r_subscribe)
expires = eu->eu_delta = 0;
else if (sip->sip_expires)
/* Use value specified by application or negotiated with Min-Expires */
expires = eu->eu_delta = sip->sip_expires->ex_delta;
else
/* We just use common default value, but the default is actually
package-specific according to the RFC 3265 section 4.4.4:
[Event] packages MUST also define a
default "Expires" value to be used if none is specified. */
expires = eu->eu_delta = 3600;
eu->eu_final_wait = 0;
if (eu->eu_substate == nua_substate_terminated)
eu->eu_substate = nua_substate_embryonic;
}
if (!sip->sip_expires || sip->sip_expires->ex_delta != expires) {
sip_expires_t ex[1];
sip_expires_init(ex)->ex_delta = expires;
sip_add_dup(msg, sip, (sip_header_t *)ex);
}
return nua_base_client_request(cr, msg, sip, tags);
}
static
int nua_publish_client_request(nua_client_request_t *cr,
msg_t *msg, sip_t *sip,
tagi_t const *tags)
{
nua_dialog_usage_t *du = cr->cr_usage;
int un, done;
sip_etag_t const *etag = NULL;
un = cr->cr_terminating ||
cr->cr_event != nua_r_publish ||
(du && du->du_shutdown) ||
(sip->sip_expires && sip->sip_expires->ex_delta == 0);
nua_client_set_terminating(cr, un);
done = un;
if (du) {
struct publish_usage *pu = nua_dialog_usage_private(du);
if (nua_client_bind(cr, du) < 0)
return -1;
if (pu->pu_published)
done = 1;
etag = pu->pu_etag;
}
return nua_base_client_trequest(cr, msg, sip,
SIPTAG_IF_MATCH(etag),
TAG_IF(done, SIPTAG_PAYLOAD(NONE)),
TAG_IF(done, SIPTAG_CONTENT_TYPE(NONE)),
TAG_IF(un, SIPTAG_EXPIRES_STR("0")),
TAG_NEXT(tags));
}
/** Restart the request message.
*
* A restarted request has not been completed successfully.
*
* @retval 0 if request is pending
* @retval >=1 if error event has been sent
*/
int nua_client_restart_request(nua_client_request_t *cr,
int terminating,
tagi_t const *tags)
{
if (cr) {
assert(nua_client_is_queued(cr));
if (tags && cr->cr_msg)
if (sip_add_tagis(cr->cr_msg, NULL, &tags) < 0)
/* XXX */;
nua_client_set_terminating(cr, terminating);
return nua_client_request_try(cr);
}
return 0;
}
static
int nua_notify_client_request(nua_client_request_t *cr,
msg_t *msg, sip_t *sip,
tagi_t const *tags)
{
nua_dialog_usage_t *du = cr->cr_usage;
struct notifier_usage *nu = nua_dialog_usage_private(du);
su_home_t *home = msg_home(msg);
sip_time_t now = sip_now();
sip_subscription_state_t *ss = sip->sip_subscription_state;
char const *expires;
if (du == NULL) /* Subscription has been terminated */
return nua_client_return(cr, SIP_481_NO_TRANSACTION, msg);
assert(du && nu);
if (du && nua_client_bind(cr, du) < 0)
return -1;
if (nu->nu_requested)
nu->nu_expires = nu->nu_requested;
nu->nu_requested = 0;
if (nu->nu_expires <= now || du->du_shutdown) {
nu->nu_substate = nua_substate_terminated;
expires = "expires=0";
}
else {
expires = su_sprintf(home, "expires=%lu", nu->nu_expires - now);
}
if (ss == NULL || nua_substate_make(ss->ss_substate) != nu->nu_substate) {
if (nu->nu_substate == nua_substate_terminated)
expires = nu->nu_expires > now ? "reason=noresource" : "reason=timeout";
ss = sip_subscription_state_format(home, "%s;%s",
nua_substate_name(nu->nu_substate),
expires);
msg_header_insert(msg, (void *)sip, (void *)ss);
}
else if (nu->nu_substate != nua_substate_terminated) {
msg_header_replace_param(home, ss->ss_common, expires);
}
#if SU_HAVE_EXPERIMENTAL
if (nu->nu_tag && !sip->sip_etag)
msg_header_add_make(msg, (void *)sip, sip_etag_class, nu->nu_tag);
if (nu->nu_no_body) {
nu->nu_no_body = 0;
msg_header_remove(msg, (void *)sip, (void *)sip->sip_payload);
msg_header_remove(msg, (void *)sip, (void *)sip->sip_content_length);
}
#endif
if (nu->nu_substate == nua_substate_terminated)
nua_client_set_terminating(cr, 1);
if (cr->cr_terminating) {
nua_server_request_t *sr;
for (sr = du->du_dialog->ds_sr; sr; sr = sr->sr_next) {
if (sr->sr_usage == du) {
/* If subscribe has not been responded, don't terminate usage by NOTIFY */
sr->sr_terminating = 1;
nua_client_set_terminating(cr, 0);
break;
}
}
}
if (du->du_event && !sip->sip_event)
sip_add_dup(cr->cr_msg, sip, (sip_header_t *)du->du_event);
return nua_base_client_request(cr, msg, sip, tags);
}
