FS-9683: Pass call recovery status to Verto

Previously, users implementing a Verto workflow where both user login and
placing a new call are automated (eg., visiting a URL, and the videoconference
loads automatically) faced the challenge of not having a reliable way to know
that a page load will result in Verto's call recovery mechanism reconnecting
an existing detached call or not.

This adds a verto.clientReady JSON-RPC message, emitted after all calls are
re-attached, which contains a 'reattached_sessions' array, containing the
sess_id of any reattached session.

Client side, this can be caught in the onMessage handler, under the
$.verto.enum.message.clientReady key.

html5/verto/demo/verto.js

@@ -159,6 +159,9 @@ var callbacks = {
                 }
             }
             break;
+        case $.verto.enum.message.clientReady:
+//            console.error("clientReady", data);
+						break;
         case $.verto.enum.message.info:
 	    var body = data.body;
 

html5/verto/js/src/jquery.verto.js

@@ -606,6 +606,11 @@
 
                 break;
 
+            case 'verto.clientReady':
+                verto.callbacks.onMessage(verto, null, $.verto.enum.message.clientReady, data.params);
+                console.debug("CLIENT READY", data.params);
+                break;
+
             default:
                 console.error("INVALID METHOD OR NON-EXISTANT CALL REFERENCE IGNORED", data.method);
                 break;
@@ -2686,7 +2691,7 @@
 
     $.verto.enum.state = $.verto.ENUM("new requesting trying recovering ringing answering early active held hangup destroy purge");
     $.verto.enum.direction = $.verto.ENUM("inbound outbound");
-    $.verto.enum.message = $.verto.ENUM("display info pvtEvent");
+    $.verto.enum.message = $.verto.ENUM("display info pvtEvent clientReady");
 
     $.verto.enum = Object.freeze($.verto.enum);
 

html5/verto/verto_communicator/src/vertoService/services/vertoService.js

@@ -632,6 +632,11 @@ vertoService.service('verto', ['$rootScope', '$cookieStore', '$location', 'stora
               case $.verto.enum.message.display:
                     $rootScope.$apply(function() {});
                     break;
+              case $.verto.enum.message.clientReady:
+                    $rootScope.$emit('clientReady', {
+                      reattached_sessions: params.reattached_sessions,
+                    });
+                    break;
               default:
                 console.warn('Got a not implemented message:', msg, dialog, params);
                 break;

html5/verto/video_demo-live_canvas/verto.js

@@ -750,6 +750,9 @@ var callbacks = {
                 }
             }
             break;
+        case $.verto.enum.message.clientReady:
+//            console.error("clientReady", data);
+						break;
         case $.verto.enum.message.info:
 	    if (data.msg) {
 		data = data.msg;

html5/verto/video_demo/verto.js

@@ -441,6 +441,9 @@ var callbacks = {
                 }
             }
             break;
+        case $.verto.enum.message.clientReady:
+//            console.error("clientReady", data);
+						break;
         case $.verto.enum.message.info:
 	    if (data.msg) {
 		data = data.msg;

src/mod/endpoints/mod_verto/mod_verto.c

@@ -1232,6 +1232,11 @@ static void drop_detached(void)
 static void attach_calls(jsock_t *jsock)
 {
 	verto_pvt_t *tech_pvt;
+	cJSON *msg = NULL;
+	cJSON *params = NULL;
+	cJSON *reattached_sessions = NULL;
+
+	reattached_sessions = cJSON_CreateArray();
 
 	switch_thread_rwlock_rdlock(verto_globals.tech_rwlock);
 	for(tech_pvt = verto_globals.tech_head; tech_pvt; tech_pvt = tech_pvt->next) {
@@ -1241,9 +1246,14 @@ static void attach_calls(jsock_t *jsock)
 			}
 
 			tech_reattach(tech_pvt, jsock);
+			cJSON_AddItemToArray(reattached_sessions, cJSON_CreateString(jsock->uuid_str));
 		}
 	}
 	switch_thread_rwlock_unlock(verto_globals.tech_rwlock);
+
+	msg = jrpc_new_req("verto.clientReady", NULL, &params);
+	cJSON_AddItemToObject(params, "reattached_sessions", reattached_sessions);
+	jsock_queue_event(jsock, &msg, SWITCH_TRUE);
 }
 
 static void detach_calls(jsock_t *jsock)