Added support for more authentication methods for the default calendar module

HTTP Basic, Digest and OAuth2/Bearer authentications are now supported
by the calendar module

modules/default/calendar/calendarfetcher.js

@@ -8,7 +8,7 @@
 var ical = require("./vendor/ical.js");
 var moment = require("moment");
 
-var CalendarFetcher = function(url, reloadInterval, maximumEntries, maximumNumberOfDays, user, pass) {
+var CalendarFetcher = function(url, reloadInterval, maximumEntries, maximumNumberOfDays, auth) {
 	var self = this;
 
 	var reloadTimer = null;
@@ -32,11 +32,23 @@ var CalendarFetcher = function(url, reloadInterval, maximumEntries, maximumNumbe
 			}
 		};
 
-		if (user && pass) {
-			opts.auth = {
-				user: user,
-				pass: pass,
-				sendImmediately: true
+		if (auth) {
+            if(auth.method === 'bearer'){
+                opts.auth = {
+                    bearer: auth.pass
+                }
+
+            }else{
+                opts.auth = {
+                    user: auth.user,
+                    pass: auth.pass
+                };
+
+                if(auth.method === 'digest'){
+                    opts.auth.sendImmediately = false;
+                }else{
+                    opts.auth.sendImmediately = true;
+                }
 			}
 		}
 
@@ -47,7 +59,7 @@ var CalendarFetcher = function(url, reloadInterval, maximumEntries, maximumNumbe
 				return;
 			}
 
-			//console.log(data);
+			// console.log(data);
 			newEvents = [];
 
 			var limitFunction = function(date, i) {return i < maximumEntries;};