无法使用基本领域配置凭据 WCF？

Question

我在 Visual Studio 2019 中添加了一个连接引用。它使用了一个 https 端点，并将所需的所有绑定信息创建到一个 reference.cs 文件中。

它没有生成任何App.config 文件，所以我怀疑我需要的东西被捆绑到reference.cs 文件中。确实，仔细研究一下，它大多是。

所以我尝试创建一个客户端，以两种方式指定客户端凭据，如您所见，但不管我如何指定它，在下面调用此代码时都会出现异常。

        public async Task SendFile(Stream fileStream, string fileName, Guid machineKey)
        {
            _logger.LogInformation("Starting file sending to Manager 1.");
            _logger.LogInformation($"Sending file {fileName} from Machine {machineKey}");
            try
            {
                var client = new FileTransferClient(FileTransferClient.EndpointConfiguration.BasicHttpBinding_IFileTransfer, _options.FileTransferEndPoint)
                {
                    ClientCredentials =
                    {
                        UserName =
                        {
                            UserName = _options.FileTransferUsername,
                            Password = _options.FileTransferPassword
                        }
                    }
                };

                client.ClientCredentials.UserName.UserName = _options.FileTransferUsername;
                client.ClientCredentials.UserName.Password = _options.FileTransferPassword;

                using (new OperationContextScope(client.InnerChannel))
                {

                }

                await client.UploadAsync(new FileUploadMessage
                {
                    // Assume that this is enough. Can't really supply file length...
                    FileInfo = new FileTransferInfo
                    {
                        TransferId = new Guid(),
                        MachineUUID = machineKey.ToString(),
                        Name = fileName
                    },

                    TransferStream = fileStream
                });
            }
            catch (Exception e)
            {
                _logger.LogError("An unexpected exception occurred while sending file to Manager 1G.", e);
            }

            _logger.LogInformation("File sending finished.");
        }

例外是"The HTTP request is unauthorized with client authentication scheme 'Basic'. The authentication header received from the server was 'Basic Realm'."

我比较了使用前面提到的App.config 的类似 API，并编辑了 reference.cs 以匹配我认为它应该具有的安全性。

具体来说，我在这里添加了与安全相关的行：

       private static System.ServiceModel.Channels.Binding GetBindingForEndpoint(EndpointConfiguration endpointConfiguration)
       {
           if ((endpointConfiguration == EndpointConfiguration.BasicHttpBinding_IFileTransfer))
           {
               System.ServiceModel.BasicHttpBinding result = new System.ServiceModel.BasicHttpBinding();
               result.MaxBufferSize = int.MaxValue;
               result.ReaderQuotas = System.Xml.XmlDictionaryReaderQuotas.Max;
               result.MaxReceivedMessageSize = int.MaxValue;
               result.AllowCookies = true;
               result.Security.Mode = System.ServiceModel.BasicHttpSecurityMode.Transport;
               result.Security.Transport.ClientCredentialType = HttpClientCredentialType.Basic;
               result.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.None;
               return result;
           }
           if ((endpointConfiguration == EndpointConfiguration.MetadataExchangeHttpsBinding_IFileTransfer))
           {
               System.ServiceModel.Channels.CustomBinding result = new System.ServiceModel.Channels.CustomBinding();
               System.ServiceModel.Channels.TextMessageEncodingBindingElement textBindingElement = new System.ServiceModel.Channels.TextMessageEncodingBindingElement();
               result.Elements.Add(textBindingElement);
               System.ServiceModel.Channels.HttpsTransportBindingElement httpsBindingElement = new System.ServiceModel.Channels.HttpsTransportBindingElement();
               httpsBindingElement.AllowCookies = true;
               httpsBindingElement.MaxBufferSize = int.MaxValue;
               httpsBindingElement.MaxReceivedMessageSize = int.MaxValue;
               result.Elements.Add(httpsBindingElement);
               return result;
           }
           throw new System.InvalidOperationException(string.Format("Could not find endpoint with name \'{0}\'.", endpointConfiguration));
       }

我发现令人震惊的是，在调用设置 ClientCredentials 的构造函数中嵌入时，当我检查带有调试会话的 client 时，它们并没有以任何方式填充。因此我尝试在之后专门设置它。

但无论哪种方式，最终结果都是一样的，得到同样的错误。

如何解决代码中的错误？

理论上我可以尝试添加App.config 并在那里执行，但我不知道合同。而且我不确定在生成的reference.cs 中寻找什么来识别它。所以我更喜欢通过代码来学习这样做，因为合同已经在那里，我可以通过_options 提供端点，所以它应该能够配置不同的环境。

Answer 1

原来我确实交换了密码和用户名，所以修复它帮助我解决了这个问题。