AngularJs Service for adding authorization / permission to the pages.

permission-factory.js

'use strict';

angular.module('permission-module')
  .factory('permissions', function ($rootScope) {
      var permissionList;
      return {
          setPermissions: function (permissions) {
              permissionList = permissions;
              $rootScope.$broadcast('permissionsChanged');
          },
          hasPermission: function (permissions) {
              var hasPermission = false;
              if (!permissionList) {
                  if (localStorage.roles && typeof(localStorage.roles).toLowerCase() == 'string')
                      permissionList = [localStorage.roles];
                  else
                      permissionList = localStorage.roles;
              }
              if (!permissionList) return false;
              angular.forEach(permissions, function (permission, index) {
                  if (!hasPermission) {
                      permission = permission.trim();
                      return angular.forEach(permissionList, function (item) {
                          if (item) {
                              hasPermission = hasPermission || item.trim() === permission;
                          }
                      });
                  }
              });
              return hasPermission;
          }
      };
  });