AngularJS ui-router ログイン認証 質問する

私は現在、より優れたデモを作成し、これらのサービスの一部を使用可能なモジュールに整理しているところですが、ここに私が思いついたものを示します。これは、いくつかの注意事項を回避するための複雑なプロセスですので、しばらくお待ちください。これをいくつかの部分に分割する必要があります。

このプランクを見てください。

まず、ユーザーの ID を保存するサービスが必要です。私はこれを と呼びますprincipal。ユーザーがログインしているかどうかをチェックし、リクエストに応じて、ユーザーの ID に関する重要な情報を表すオブジェクトを解決できます。これは必要なものであれば何でも構いませんが、必須項目は表示名、ユーザー名、場合によっては電子メール、およびユーザーが属するロール (アプリに該当する場合) です。Principal には、ロール チェックを行うメソッドもあります。

.factory('principal', ['$q', '$http', '$timeout',
  function($q, $http, $timeout) {
    var _identity = undefined,
      _authenticated = false;

    return {
      isIdentityResolved: function() {
        return angular.isDefined(_identity);
      },
      isAuthenticated: function() {
        return _authenticated;
      },
      isInRole: function(role) {
        if (!_authenticated || !_identity.roles) return false;

        return _identity.roles.indexOf(role) != -1;
      },
      isInAnyRole: function(roles) {
        if (!_authenticated || !_identity.roles) return false;

        for (var i = 0; i < roles.length; i++) {
          if (this.isInRole(roles[i])) return true;
        }

        return false;
      },
      authenticate: function(identity) {
        _identity = identity;
        _authenticated = identity != null;
      },
      identity: function(force) {
        var deferred = $q.defer();

        if (force === true) _identity = undefined;

        // check and see if we have retrieved the 
        // identity data from the server. if we have, 
        // reuse it by immediately resolving
        if (angular.isDefined(_identity)) {
          deferred.resolve(_identity);

          return deferred.promise;
        }

        // otherwise, retrieve the identity data from the
        // server, update the identity object, and then 
        // resolve.
        //           $http.get('/svc/account/identity', 
        //                     { ignoreErrors: true })
        //                .success(function(data) {
        //                    _identity = data;
        //                    _authenticated = true;
        //                    deferred.resolve(_identity);
        //                })
        //                .error(function () {
        //                    _identity = null;
        //                    _authenticated = false;
        //                    deferred.resolve(_identity);
        //                });

        // for the sake of the demo, fake the lookup
        // by using a timeout to create a valid
        // fake identity. in reality,  you'll want 
        // something more like the $http request
        // commented out above. in this example, we fake 
        // looking up to find the user is
        // not logged in
        var self = this;
        $timeout(function() {
          self.authenticate(null);
          deferred.resolve(_identity);
        }, 1000);

        return deferred.promise;
      }
    };
  }
])

.factory('authorization', ['$rootScope', '$state', 'principal',
  function($rootScope, $state, principal) {
    return {
      authorize: function() {
        return principal.identity()
          .then(function() {
            var isAuthenticated = principal.isAuthenticated();

            if ($rootScope.toState.data.roles
                && $rootScope.toState
                             .data.roles.length > 0 
                && !principal.isInAnyRole(
                   $rootScope.toState.data.roles))
            {
              if (isAuthenticated) {
                  // user is signed in but not
                  // authorized for desired state
                  $state.go('accessdenied');
              } else {
                // user is not authenticated. Stow
                // the state they wanted before you
                // send them to the sign-in state, so
                // you can return them when you're done
                $rootScope.returnToState
                    = $rootScope.toState;
                $rootScope.returnToStateParams
                    = $rootScope.toStateParams;

                // now, send them to the signin state
                // so they can log in
                $state.go('signin');
              }
            }
          });
      }
    };
  }
])

.run(['$rootScope', '$state', '$stateParams', 
      'authorization', 'principal',
    function($rootScope, $state, $stateParams, 
             authorization, principal)
{
      $rootScope.$on('$stateChangeStart', 
          function(event, toState, toStateParams)
      {
        // track the state the user wants to go to; 
        // authorization service needs this
        $rootScope.toState = toState;
        $rootScope.toStateParams = toStateParams;
        // if the principal is resolved, do an 
        // authorization check immediately. otherwise,
        // it'll be done when the state it resolved.
        if (principal.isIdentityResolved()) 
            authorization.authorize();
      });
    }
  ]);

$stateProvider.state('site', {
  'abstract': true,
  resolve: {
    authorize: ['authorization',
      function(authorization) {
        return authorization.authorize();
      }
    ]
  },
  template: '<div ui-view />'
})

.state('restricted', {
    parent: 'site',
    url: '/restricted',
    data: {
      roles: ['Admin']
    },
    views: {
      'content@': {
        templateUrl: 'restricted.html'
      }
    }
  })

.scope('HomeCtrl', ['$scope', 'principal', 
    function($scope, principal)
{
  $scope.principal = principal;
});

<div ng-show="principal.isAuthenticated()">
   I'm logged in
</div>
<div ng-hide="principal.isAuthenticated()">
  I'm not logged in
</div>