我无法从 WCF 客户端连接到第 3 方 WSE 3.0 Web 服务。我已经实现了此知识库文章中所示的自定义绑定类:
http://msdn.microsoft.com/en-us/library/ms734745.aspx
该问题似乎与 Web 服务使用的安全断言有关 - UsernameOverTransport。
当我尝试调用方法时,出现以下异常:
System.InvalidOperationException:'MyWebServiceSoap'.'[namespace]' 合同的'WseHttpBinding'.'[namespace]' 绑定配置了需要传输级别完整性和机密性的身份验证模式。然而,传输不能提供完整性和机密性。
它需要用户名、密码和 CN 号码。在供应商提供给我们的示例代码中,这些凭据捆绑在 Microsoft.Web.Services3.Security.Tokens.UsernameToken 中。这是供应商提供的示例:
MyWebServiceWse proxy = new MyWebServiceWse();
UsernameToken token = new UsernameToken("Username", "password", PasswordOption.SendPlainText);
token.Id = "<supplied CN Number>";
proxy.SetClientCredential(token);
proxy.SetPolicy(new Policy(new UsernameOverTransportAssertion(), new RequireActionHeaderAssertion()));
MyObject mo = proxy.MyMethod();
这适用于安装了 WSE 3.0 的 2.0 应用程序。这是我的 WCF 客户端的代码片段:
EndpointAddress address = new EndpointAddress(new Uri("<web service uri here>"));
WseHttpBinding binding = new WseHttpBinding(); // This is the custom binding I created per the MS KB article
binding.SecurityAssertion = WseSecurityAssertion.UsernameOverTransport;
binding.EstablishSecurityContext = false;
// Not sure about the value of either of these next two
binding.RequireDerivedKeys = true;
binding.MessageProtectionOrder = MessageProtectionOrder.SignBeforeEncrypt;
MembershipServiceSoapClient proxy = new MembershipServiceSoapClient(binding, address);
// This is where I believe the problem lies – I can’t seem to properly setup the security credentials the web service is expecting
proxy.ClientCredentials.UserName.UserName = "username";
proxy.ClientCredentials.UserName.Password = "pwd";
// How do I supply the CN number?
MyObject mo = proxy.MyMethod(); // this throws the exception
我在网上搜索了这个问题的答案。有些资料让我很接近(比如 MS KB 文章),但我似乎无法克服困难。有人可以帮我吗?