sprint2

common.service.js
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			(function () {
			'use strict';

			angular
			.module('shrine.common')
			.factory('CommonService', CommonService);

			/**
			*
			*/
			CommonService.$inject = ['DateService'];
			function CommonService(DateService) {

			return {
			dateService: DateService,
			hasAccess: hasAccess,
			toBase64: toBase64
			};

			/**
			* Verify that the intersection of user roles and the roles array.
			* @param user - user object containing array of roles.
			* @param rolesArray - an array of acceptable roles.
			*/
			function hasAccess(user, rolesArray) {
			return !!(_.intersection(user.roles, rolesArray).length !== 0);
			}

			/**
			* Convert a string to BASE 64.
			* @param str
			*/
			function toBase64(str) {
			return window.btoa(str);
			}
			}
			})();