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Diffstat (limited to 'pjsip/src/pjsua-lib/pjsua_pres.c')
-rw-r--r--pjsip/src/pjsua-lib/pjsua_pres.c236
1 files changed, 233 insertions, 3 deletions
diff --git a/pjsip/src/pjsua-lib/pjsua_pres.c b/pjsip/src/pjsua-lib/pjsua_pres.c
index e7866377..80337299 100644
--- a/pjsip/src/pjsua-lib/pjsua_pres.c
+++ b/pjsip/src/pjsua-lib/pjsua_pres.c
@@ -1853,6 +1853,230 @@ static pj_status_t refresh_client_subscriptions(void)
return PJ_SUCCESS;
}
+/***************************************************************************
+ * MWI
+ */
+/* Callback called when *client* subscription state has changed. */
+static void mwi_evsub_on_state( pjsip_evsub *sub, pjsip_event *event)
+{
+ pjsua_acc *acc;
+
+ PJ_UNUSED_ARG(event);
+
+ /* Note: #937: no need to acuire PJSUA_LOCK here. Since the buddy has
+ * a dialog attached to it, lock_buddy() will use the dialog
+ * lock, which we are currently holding!
+ */
+ acc = (pjsua_acc*) pjsip_evsub_get_mod_data(sub, pjsua_var.mod.id);
+ if (!acc)
+ return;
+
+ PJ_LOG(4,(THIS_FILE,
+ "MWI subscription for %.*s is %s",
+ (int)acc->cfg.id.slen, acc->cfg.id.ptr,
+ pjsip_evsub_get_state_name(sub)));
+
+ if (pjsip_evsub_get_state(sub) == PJSIP_EVSUB_STATE_TERMINATED) {
+ /* Clear subscription */
+ acc->mwi_dlg = NULL;
+ acc->mwi_sub = NULL;
+ pjsip_evsub_set_mod_data(sub, pjsua_var.mod.id, NULL);
+
+ }
+}
+
+/* Callback called when we receive NOTIFY */
+static void mwi_evsub_on_rx_notify(pjsip_evsub *sub,
+ pjsip_rx_data *rdata,
+ int *p_st_code,
+ pj_str_t **p_st_text,
+ pjsip_hdr *res_hdr,
+ pjsip_msg_body **p_body)
+{
+ pjsua_mwi_info mwi_info;
+ pjsua_acc *acc;
+
+ PJ_UNUSED_ARG(p_st_code);
+ PJ_UNUSED_ARG(p_st_text);
+ PJ_UNUSED_ARG(res_hdr);
+ PJ_UNUSED_ARG(p_body);
+
+ acc = (pjsua_acc*) pjsip_evsub_get_mod_data(sub, pjsua_var.mod.id);
+ if (!acc)
+ return;
+
+ /* Construct mwi_info */
+ pj_bzero(&mwi_info, sizeof(mwi_info));
+ mwi_info.evsub = sub;
+ mwi_info.rdata = rdata;
+
+ /* Call callback */
+ if (pjsua_var.ua_cfg.cb.on_mwi_info) {
+ (*pjsua_var.ua_cfg.cb.on_mwi_info)(acc->index, &mwi_info);
+ }
+}
+
+
+/* Event subscription callback. */
+static pjsip_evsub_user mwi_cb =
+{
+ &mwi_evsub_on_state,
+ NULL, /* on_tsx_state: not interested */
+ NULL, /* on_rx_refresh: don't care about SUBSCRIBE refresh, unless
+ * we want to authenticate
+ */
+
+ &mwi_evsub_on_rx_notify,
+
+ NULL, /* on_client_refresh: Use default behaviour, which is to
+ * refresh client subscription. */
+
+ NULL, /* on_server_timeout: Use default behaviour, which is to send
+ * NOTIFY to terminate.
+ */
+};
+
+void pjsua_start_mwi(pjsua_acc *acc)
+{
+ pj_pool_t *tmp_pool = NULL;
+ pj_str_t contact;
+ pjsip_tx_data *tdata;
+ pj_status_t status;
+
+ if (!acc->cfg.mwi_enabled) {
+ if (acc->mwi_sub) {
+ /* Terminate MWI subscription */
+ pjsip_tx_data *tdata;
+ pjsip_evsub *sub = acc->mwi_sub;
+
+ /* Detach sub from this account */
+ acc->mwi_sub = NULL;
+ acc->mwi_dlg = NULL;
+ pjsip_evsub_set_mod_data(sub, pjsua_var.mod.id, NULL);
+
+ /* Unsubscribe */
+ status = pjsip_mwi_initiate(acc->mwi_sub, 0, &tdata);
+ if (status == PJ_SUCCESS) {
+ status = pjsip_mwi_send_request(acc->mwi_sub, tdata);
+ }
+ }
+ return;
+ }
+
+ if (acc->mwi_sub) {
+ /* Subscription is already active */
+ return;
+
+ }
+
+ /* Generate suitable Contact header unless one is already set in
+ * the account
+ */
+ if (acc->contact.slen) {
+ contact = acc->contact;
+ } else {
+ tmp_pool = pjsua_pool_create("tmpmwi", 512, 256);
+ status = pjsua_acc_create_uac_contact(tmp_pool, &contact,
+ acc->index, &acc->cfg.id);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror(THIS_FILE, "Unable to generate Contact header",
+ status);
+ pj_pool_release(tmp_pool);
+ return;
+ }
+ }
+
+ /* Create UAC dialog */
+ status = pjsip_dlg_create_uac( pjsip_ua_instance(),
+ &acc->cfg.id,
+ &contact,
+ &acc->cfg.id,
+ NULL, &acc->mwi_dlg);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror(THIS_FILE, "Unable to create dialog", status);
+ if (tmp_pool) pj_pool_release(tmp_pool);
+ return;
+ }
+
+ /* Increment the dialog's lock otherwise when presence session creation
+ * fails the dialog will be destroyed prematurely.
+ */
+ pjsip_dlg_inc_lock(acc->mwi_dlg);
+
+ /* Create UAC subscription */
+ status = pjsip_mwi_create_uac(acc->mwi_dlg, &mwi_cb,
+ PJSIP_EVSUB_NO_EVENT_ID, &acc->mwi_sub);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror(THIS_FILE, "Error creating MWI subscription", status);
+ if (tmp_pool) pj_pool_release(tmp_pool);
+ pjsip_dlg_dec_lock(acc->mwi_dlg);
+ return;
+ }
+
+ /* If account is locked to specific transport, then lock dialog
+ * to this transport too.
+ */
+ if (acc->cfg.transport_id != PJSUA_INVALID_ID) {
+ pjsip_tpselector tp_sel;
+
+ pjsua_init_tpselector(acc->cfg.transport_id, &tp_sel);
+ pjsip_dlg_set_transport(acc->mwi_dlg, &tp_sel);
+ }
+
+ /* Set route-set */
+ if (!pj_list_empty(&acc->route_set)) {
+ pjsip_dlg_set_route_set(acc->mwi_dlg, &acc->route_set);
+ }
+
+ /* Set credentials */
+ if (acc->cred_cnt) {
+ pjsip_auth_clt_set_credentials( &acc->mwi_dlg->auth_sess,
+ acc->cred_cnt, acc->cred);
+ }
+
+ /* Set authentication preference */
+ pjsip_auth_clt_set_prefs(&acc->mwi_dlg->auth_sess, &acc->cfg.auth_pref);
+
+ pjsip_evsub_set_mod_data(acc->mwi_sub, pjsua_var.mod.id, acc);
+
+ status = pjsip_mwi_initiate(acc->mwi_sub, -1, &tdata);
+ if (status != PJ_SUCCESS) {
+ pjsip_dlg_dec_lock(acc->mwi_dlg);
+ if (acc->mwi_sub) {
+ pjsip_pres_terminate(acc->mwi_sub, PJ_FALSE);
+ }
+ acc->mwi_sub = NULL;
+ acc->mwi_dlg = NULL;
+ pjsua_perror(THIS_FILE, "Unable to create initial MWI SUBSCRIBE",
+ status);
+ if (tmp_pool) pj_pool_release(tmp_pool);
+ return;
+ }
+
+ pjsua_process_msg_data(tdata, NULL);
+
+ status = pjsip_pres_send_request(acc->mwi_sub, tdata);
+ if (status != PJ_SUCCESS) {
+ pjsip_dlg_dec_lock(acc->mwi_dlg);
+ if (acc->mwi_sub) {
+ pjsip_pres_terminate(acc->mwi_sub, PJ_FALSE);
+ }
+ acc->mwi_sub = NULL;
+ acc->mwi_dlg = NULL;
+ pjsua_perror(THIS_FILE, "Unable to send initial MWI SUBSCRIBE",
+ status);
+ if (tmp_pool) pj_pool_release(tmp_pool);
+ return;
+ }
+
+ pjsip_dlg_dec_lock(acc->mwi_dlg);
+ if (tmp_pool) pj_pool_release(tmp_pool);
+
+}
+
+
+/***************************************************************************/
+
/* Timer callback to re-create client subscription */
static void pres_timer_cb(pj_timer_heap_t *th,
pj_timer_entry *entry)
@@ -1860,14 +2084,20 @@ static void pres_timer_cb(pj_timer_heap_t *th,
unsigned i;
pj_time_val delay = { PJSUA_PRES_TIMER, 0 };
- /* Retry failed PUBLISH requests */
+ entry->id = PJ_FALSE;
+
+ /* Retry failed PUBLISH and MWI SUBSCRIBE requests */
for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
pjsua_acc *acc = &pjsua_var.acc[i];
+
+ /* Retry PUBLISH */
if (acc->cfg.publish_enabled && acc->publish_sess==NULL)
pjsua_pres_init_publish_acc(acc->index);
- }
- entry->id = PJ_FALSE;
+ /* Re-subscribe MWI subscription if it's terminated prematurely */
+ if (acc->cfg.mwi_enabled && !acc->mwi_sub)
+ pjsua_start_mwi(acc);
+ }
/* #937: No need to do bulk client refresh, as buddies have their
* own individual timer now.
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-27 14:22:51 +0000