Question

使用Exchange EWS托管API 2.0，这是我用来验证凭据的方法：

public static bool TestExchangeConnetion(UserSettingDTO credential, ServerSettingDTO serverSetting)
    {
        bool authenticated = false;
        Microsoft.Exchange.WebServices.Data.ExchangeService service;


        service = new ExchangeService((ExchangeVersion)Enum.Parse(typeof(ExchangeVersion), serverSetting.ExchangeVer));
        service.Url = new Uri(serverSetting.ExchangeURL);


        service.Credentials = new NetworkCredential(credential.ExchangeUsername, credential.ExchangePassword);

        try
        {
            //make a call to ensure that credentials are working
            AlternateIdBase response = service.ConvertId(new AlternateId(IdFormat.EwsId, "Placeholder", credential.ExchangeUsername), IdFormat.EwsId);
        }
        // The credentials were authenticated. We expect this exception since we are providing intentional bad data for ConvertId
        catch (ServiceResponseException)
        {
            authenticated = true;
        }

        // The credentials were not authenticated.
        catch (ServiceRequestException)
        {
            authenticated = false;
        }
        catch (Exception)
        {
            authenticated = false;
        }

        return authenticated;
    }

这可以很好地验证凭据，但我正在寻找一种方法来区分无效凭据和Exchange服务器停机时间。此代码对两者都返回false。是否有可能发现是否存在与服务器通信的问题（如服务器停机时间）？原因是我想通知用户有关无效凭据而不是服务器停机时间的信息！

Answer 1

EWS只是一个在IIS上运行的Web服务（因此IIS正在考虑身份验证），如果您只是想检查凭据，为什么不对services.wsdl文件发出Get请求或者获取CAS服务器上的自动发现端点。如果凭证不正确，则应在该点返回401。

干杯格伦

如何使用EWS托管API验证Exchange凭据并验证Exchange服务器通信？

1 个答案: