Вызов службы WCF с сертификатом от клиентского приложения, не имея интерфейс контракта

Question

Моя конкретная проблема что-то вроде этого:

• Я могу ссылаться на WCF службы динамически, но я должен предоставить сертификат.
• Мы не хотим использовать app.config.
• Основная проблема заключается в том, что служба WCF является сторонним URL-адресом.
• На самом деле, я получаю исключение, пока вызываю экземпляр, что сертификат не предоставляется.

• Мой код-то вроде этого:

  try 
      { 
       // Define the metadata address, contract name, operation name, 
       // and parameters. 
       // You can choose between MEX endpoint and HTTP GET by 
       // changing the address and enum value. 
       Uri mexAddress = new Uri("http://Some3rdPartyURL.svc?wsdl");//Some 3rd party url 
       // For MEX endpoints use a MEX address and a 
       // mexMode of .MetadataExchange 
  
  
       MetadataExchangeClientMode mexMode = MetadataExchangeClientMode.HttpGet; 
  
       string contractName = "IService";//"";//3rd party service name 
       string operationName = "SendMethod";//3rd party method name 
       object[] args = new object[] { "", "", "0" };//3rd party required parameters 
       //object[] operationParameters = new object[] { /*1, 2*/args }; 
  
       // Get the metadata file from the service. 
       MetadataExchangeClient mexClient = 
       new MetadataExchangeClient(mexAddress, mexMode); 
       mexClient.ResolveMetadataReferences = true; 
       MetadataSet metaSet = mexClient.GetMetadata(); 
  
       // Import all contracts and endpoints 
       WsdlImporter importer = new WsdlImporter(metaSet); 
  
       Collection<ContractDescription> contracts = 
         importer.ImportAllContracts(); 
       ServiceEndpointCollection allEndpoints = importer.ImportAllEndpoints(); 
  
       // Generate type information for each contract 
       ServiceContractGenerator generator = new ServiceContractGenerator(); 
  
       var endpointsForContracts = new Dictionary<string, IEnumerable<ServiceEndpoint>>(); 
  
       foreach (ContractDescription contract in contracts) 
       { 
        generator.GenerateServiceContractType(contract); 
        // Keep a list of each contract's endpoints 
        endpointsForContracts[contract.Name] = allEndpoints.Where(
         se => se.Contract.Name == contract.Name).ToList(); 
       } 
  
       if (generator.Errors.Count != 0) 
        throw new Exception("There were errors during code compilation."); 
  
       // Generate a code file for the contracts 
       CodeGeneratorOptions options = new CodeGeneratorOptions(); 
       options.BracingStyle = "C"; 
       CodeDomProvider codeDomProvider = CodeDomProvider.CreateProvider("C#"); 
  
       // Compile the code file to an in-memory assembly 
       // Don't forget to add all WCF-related assemblies as references 
       CompilerParameters compilerParameters = new CompilerParameters(
        new string[] { 
         "System.dll", "System.ServiceModel.dll", 
         "System.Runtime.Serialization.dll"}); 
       compilerParameters.GenerateInMemory = true; 
  
       CompilerResults results = codeDomProvider.CompileAssemblyFromDom(
        compilerParameters, generator.TargetCompileUnit); 
  
       if (results.Errors.Count > 0) 
       { 
        throw new Exception("There were errors during generated code compilation"); 
       } 
       else 
       { 
        // Find the proxy type that was generated for the specified contract 
        // (identified by a class that implements 
        // the contract and ICommunicationbject) 
        Type clientProxyType = results.CompiledAssembly.GetTypes().First(
         t => t.IsClass && 
          t.GetInterface(contractName) != null && 
          t.GetInterface(typeof(ICommunicationObject).Name) != null); 
  
  
        // Get the first service endpoint for the contract 
        ServiceEndpoint se = endpointsForContracts[contractName].First(); 
        //se = endpointsForContracts[contractName].First(); 
  
        WSHttpBinding wsBinding = this.fillWsHttpBinding();     
        string encodeValue = "MIIFazCCBFO****"; // here we should use the encoded certificate value generated by svcutil.exe. 
        X509Certificate2Collection supportingCertificates = new X509Certificate2Collection(); 
        supportingCertificates.Import(Convert.FromBase64String(encodeValue)); 
        X509Certificate2 primaryCertificate = supportingCertificates[0]; 
        supportingCertificates.RemoveAt(0); 
        EndpointIdentity.CreateX509CertificateIdentity(primaryCertificate, supportingCertificates); 
        EndpointIdentity identity = EndpointIdentity.CreateX509CertificateIdentity(primaryCertificate); 
        var endpoint = new EndpointAddress(mexAddress, identity); 
  
        se.Binding = wsBinding; 
        se.Address = endpoint; 
  
        // Create an instance of the proxy 
        // Pass the endpoint's binding and address as parameters 
        // to the ctor     
        object instance = results.CompiledAssembly.CreateInstance(
         clientProxyType.Name, 
         false, 
         System.Reflection.BindingFlags.CreateInstance | BindingFlags.Public | BindingFlags.Instance, 
          null, 
         new object[] { se.Binding, se.Address }, CultureInfo.CurrentCulture, null); 
  
        var methodInfo = instance.GetType().GetMethod(operationName); 
        var methodParams = methodInfo.GetParameters(); 
        int count = args.Count(); 
        object[] args2 = new object[count]; 
        int i = 0; 
        foreach (var service1 in methodParams) 
        { 
         args2[i] = Convert.ChangeType(args[i], Type.GetType("System." + service1.ParameterType.Name)); 
         i += 1; 
        } 
        Object retVal = instance.GetType().GetMethod(operationName).Invoke(instance, args2);/*Getting Error that certificate not provided???*/ 
       } 
      } 
      catch (Exception ex) 
      { 
       string error = ex.ToString(); 
       MessageBox.Show("Error Invoking Method: " + ex.Message); 
      } 
  

  частный WSHttpBinding fillWsHttpBinding() {

  WSHttpBinding wsBinding = new WSHttpBinding(); 
      wsBinding.CloseTimeout = new TimeSpan(0, 1, 0); 
      wsBinding.OpenTimeout = new TimeSpan(0, 10, 0); 
      wsBinding.ReceiveTimeout = new TimeSpan(0, 10, 0); 
      wsBinding.SendTimeout = new TimeSpan(0, 5, 30); 
      wsBinding.BypassProxyOnLocal = false; 
      wsBinding.TransactionFlow = false; 
      wsBinding.HostNameComparisonMode = HostNameComparisonMode.StrongWildcard; 
      wsBinding.MaxBufferPoolSize = 524288L; 
      wsBinding.MaxReceivedMessageSize = 10485760L; 
      wsBinding.MessageEncoding = WSMessageEncoding.Text; 
      wsBinding.TextEncoding = Encoding.UTF8; 
      wsBinding.UseDefaultWebProxy = true; 
      wsBinding.AllowCookies = false; 
  
      wsBinding.ReaderQuotas.MaxDepth = 32; 
      wsBinding.ReaderQuotas.MaxStringContentLength = 8192; 
      wsBinding.ReaderQuotas.MaxArrayLength = 10485760; 
      wsBinding.ReaderQuotas.MaxNameTableCharCount = 16384; 
  
      wsBinding.ReliableSession.Ordered = true; 
      wsBinding.ReliableSession.InactivityTimeout = TimeSpan.FromMinutes(10); 
      wsBinding.ReliableSession.Enabled = false; 
  
      wsBinding.Security.Mode = SecurityMode.Message; 
      wsBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Windows; 
      wsBinding.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.None; 
      wsBinding.Security.Transport.Realm = ""; 
  
      wsBinding.Security.Message.ClientCredentialType = MessageCredentialType.Certificate; 
      wsBinding.Security.Message.NegotiateServiceCredential = true; 
      wsBinding.Security.Message.AlgorithmSuite = System.ServiceModel.Security.SecurityAlgorithmSuite.Basic256; 
  
      return wsBinding; 
  } 
  

Answer 1

Где вы устанавливаете сертификат на EndpointIdentity заставляет его использовать для подтвердите идентификатор , номер. Вы не установили учетные данные клиента, используя instance.ClientCredentials.ClientCertificate.SetCertificate(...). Вам нужно будет получить ClientCredentials из ClientBase <> с помощью отражения. См. http://msdn.microsoft.com/en-us/library/ms732391%28v=vs.110%29.aspx.

var credentialProperty = instance.GetType().GetProperty("ClientCredentials"); 
var credentials = (ClientCredentials)credentialProperty.GetValue(instance, null); 
credentials.ClientCertificate.SetCertficate(...); 

Вы также получили два вызова EndpointIdentity.CreateX509CertificateIdentity, не обращая внимания на выход одного из них.