Question

我开发了一个小型控制台应用程序来测试EWS StreamingSubscriptions / Notifications。在过去，我们使用推送通知，但理论上，在使用StreamingNotifications时，我应该能够避免创建一个监听器http端点以及它的所有麻烦（防火墙等）。

所以，从我的本地机器;我这样做：

static void Main(string[] args)
    {
        if (String.IsNullOrEmpty(ConfigurationManager.AppSettings["PrimaryLabUserId"]))
        {
            throw new ArgumentNullException("Please provide a value for PrimaryLabUserId in app.config");
        }
        _primaryLabUserId = ConfigurationManager.AppSettings["PrimaryLabUserId"];

        string ServiceAccountName = ConfigurationManager.AppSettings["ExchangeServiceAccountName"];
        string ServiceAccountPassword = ConfigurationManager.AppSettings["ExchangeServiceAccountPassword"];


        _service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
        _service.Credentials = new WebCredentials(ServiceAccountName, ServiceAccountPassword);
        _service.AutodiscoverUrl(_primaryLabUserId, (x) => true);
        _ewsUrl = _service.Url.AbsoluteUri;

        var _connection =  new StreamingSubscriptionConnection(_service, 30);

        var sub = SubscribeForStreamingNotifications();

        _connection.AddSubscription(sub);

        _connection.OnDisconnect +=
            new StreamingSubscriptionConnection.SubscriptionErrorDelegate(OnDisconnect);

        // set up subscriptions here.
        _connection.OnNotificationEvent +=
                    new StreamingSubscriptionConnection.NotificationEventDelegate(OnNewMail);

        _connection.Open();
        Console.WriteLine("Listening streaming...");
        Console.ReadLine();


    }

public static StreamingSubscription SubscribeForStreamingNotifications()
    {

                   var folderIds = new List<FolderId>()
        {
            WellKnownFolderName.Inbox,
            WellKnownFolderName.Calendar
        };

                    var eventTypes = new List<EventType>();
        eventTypes.Add(EventType.NewMail);
        eventTypes.Add(EventType.Deleted);
        eventTypes.Add(EventType.Moved);
        eventTypes.Add(EventType.Created);
        eventTypes.Add(EventType.Modified);

        return _service.SubscribeToStreamingNotifications(folderIds, eventTypes.ToArray());
    }

private static void OnNewMail(object sender, NotificationEventArgs args)
    {
        var test = args;
        Console.WriteLine("Incoming");
    }

订阅初始化OK，但是当我向LabUser发送新邮件时没有任何反应。通知事件永远不会发生。我尝试了同样的推送，它正在工作（在另一台服务器上使用公共http端点进行交换回调）。我想知道这是否与我的本地机器有关。

Answer 1

我多么愚蠢。我忘记冒充了。由于我使用服务帐户呼叫EWS，因此除非您指定：

，否则它当然是在监听该帐户的邮箱。

 _service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, _primaryLabUserId);

Streaming Notifications不适用于Office 365 / Exchange Online

1 个答案: