static int nua_subscribe_server_report(nua_server_request_t *sr, tagi_t const *tags) { nua_handle_t *nh = sr->sr_owner; nua_dialog_state_t *ds = nh->nh_ds; nua_dialog_usage_t *du = sr->sr_usage; struct notifier_usage *nu = nua_dialog_usage_private(du); enum nua_substate substate = nua_substate_terminated; int notify = 0; int retval; if (nu && !sr->sr_terminating) { substate = nu->nu_substate; } /* nu_requested is set by SUBSCRIBE and cleared when NOTIFY is sent */ if (nu && nu->nu_requested && substate != nua_substate_embryonic) { #if SU_HAVE_EXPERIMENTAL sip_t const *sip = sr->sr_request.sip; sip_suppress_notify_if_match_t *snim = sip_suppress_notify_if_match(sip); sip_suppress_body_if_match_t *sbim = sip_suppress_body_if_match(sip); if (!nu->nu_tag) notify = 1; else if (snim && su_casematch(snim->snim_tag, nu->nu_tag)) notify = 0; else if (sbim && su_casematch(snim->snim_tag, nu->nu_tag)) notify = 1, nu->nu_no_body = 1; else #endif notify = 1; notify = notify && du->du_cr != NULL; } retval = nua_base_server_treport(sr, NUTAG_SUBSTATE(substate), TAG_END()); if (retval >= 2 || du == NULL) return retval; if (notify) { /* Send NOTIFY (and terminate subscription, when needed) */ nua_dialog_usage_refresh(nh, ds, du); } return retval; }
static int nua_refer_server_report(nua_server_request_t *sr, tagi_t const *tags) { nua_handle_t *nh = sr->sr_owner; struct notifier_usage *nu = nua_dialog_usage_private(sr->sr_usage); sip_t const *sip = sr->sr_request.sip; sip_referred_by_t *by = sip->sip_referred_by, default_by[1]; sip_event_t const *o = sr->sr_usage->du_event; enum nua_substate substate = nua_substate_terminated; int initial = sr->sr_initial, retval; if (nu) { if (!sr->sr_terminating) substate = nu->nu_substate; } if (by == NULL) { by = sip_referred_by_init(default_by); by->b_display = sip->sip_from->a_display; *by->b_url = *sip->sip_from->a_url; } retval = nua_base_server_treport(sr, NUTAG_SUBSTATE(substate), NUTAG_REFER_EVENT(o), TAG_IF(by, SIPTAG_REFERRED_BY(by)), TAG_END()); if (retval >= 2 || nu == NULL) return retval; if (initial) nua_stack_post_signal(nh, nua_r_notify, SIPTAG_EVENT(o), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"), SIPTAG_PAYLOAD_STR("SIP/2.0 100 Trying\r\n"), TAG_END()); return retval; }
int nua_notify_server_report(nua_server_request_t *sr, tagi_t const *tags) { nua_handle_t *nh = sr->sr_owner; nua_dialog_usage_t *du = sr->sr_usage; struct event_usage *eu = nua_dialog_usage_private(du); sip_t const *sip = sr->sr_request.sip; enum nua_substate substate = nua_substate_terminated; sip_time_t delta = SIP_TIME_MAX; sip_event_t const *o = sip->sip_event; int retry = -1; int retval; if (eu) { sip_subscription_state_t *subs = sip->sip_subscription_state; substate = eu->eu_substate; if (substate == nua_substate_active || substate == nua_substate_pending) { if (subs && subs->ss_expires) { sip_time_t now = sip_now(); sip_time_t delta0 = strtoul(subs->ss_expires, NULL, 10); if (now + delta0 <= eu->eu_expires) delta = delta0; } } else if (substate == nua_substate_embryonic) { if (subs && subs->ss_reason) { if (su_casematch(subs->ss_reason, "deactivated")) { retry = 0; /* retry immediately */ } else if (su_casematch(subs->ss_reason, "probation")) { retry = 30; if (subs->ss_retry_after) retry = strtoul(subs->ss_retry_after, NULL, 10); if (retry > 3600) retry = 3600; } } } else if (substate == nua_substate_terminated) { sr->sr_terminating = 1; } } retval = nua_base_server_treport(sr, /* can destroy sr */ NUTAG_SUBSTATE(substate), SIPTAG_EVENT(o), TAG_NEXT(tags)); if (retval != 1 || du == NULL) return retval; if (eu->eu_unsolicited) { /* Xyzzy */; } else if (retry >= 0) { /* Try to subscribe again */ /* XXX - this needs through testing */ nua_dialog_remove(nh, nh->nh_ds, du); /* tear down */ nua_dialog_usage_set_refresh_range(du, retry, retry + 5); } else { if (delta < SIP_TIME_MAX) { nua_dialog_usage_set_refresh(du, delta); eu->eu_expires = du->du_refquested + delta; } } return retval; }