Procedimiento para configurar un cliente WCF para interoperar con los servicios WSE 3.0
Los clientes de Windows Communication Foundation (WCF) son compatibles en el nivel de conexión con Web Services Enhancements 3.0 para los servicios de Microsoft .NET (WSE) cuando los clientes WCF están configurados para utilizar la versión de agosto de 2004 de la especificación WS-Addressing.
Configuración de un cliente WCF para interoperar con un servicio web WSE 3.0
Ejecute la utilidad de metadatos de ServiceModel (Svcutil.exe) para crear un cliente WCF para el servicio web WSE 3.0.
Para un servicio web WSE, se crea una clase de cliente de WCF.
Para obtener más información sobre cómo crear un cliente WCF, consulte Tutorial: Creación de un cliente Windows Communication Foundation.
Cree una clase que represente un enlace que puede comunicarse con los servicios Web WSE 3.0.
La siguiente clase forma parte del ejemplo Interoperabilidad con WSE.
Cree una clase que se derive de la clase Binding.
En el siguiente ejemplo de código se crea una clase denominada
WseHttpBinding
, que se deriva de la clase Binding.public class WseHttpBinding : Binding {
Public Class WseHttpBinding Inherits Binding
Agregue propiedades a la clase que especifiquen la aserción de llave en mano WSE, si se requieren las claves derivadas, si se utilizan sesiones seguras, si se requieren confirmaciones de firmas, y la configuración de protección de mensajes.
En el ejemplo de código siguiente se definen las propiedades
SecurityAssertion
,RequireDerivedKeys
,EstablishSecurityContext
yMessageProtectionOrder
. Estas propiedades especifican la aserción llave en mano de WSE, si se requieren claves derivadas, si se utilizan sesiones seguras, si se requieren confirmaciones de firmas y la configuración de protección de los mensajes, respectivamente.private WseSecurityAssertion assertion; public WseSecurityAssertion SecurityAssertion { get { return assertion; } set { assertion = value; } } private bool requireDerivedKeys; public bool RequireDerivedKeys { get { return requireDerivedKeys; } set { requireDerivedKeys = value; } } private bool establishSecurityContext; public bool EstablishSecurityContext { get { return establishSecurityContext; } set { establishSecurityContext = value; } } private bool requireSignatureConfirmation; public bool RequireSignatureConfirmation { get { return requireSignatureConfirmation; } set { requireSignatureConfirmation = value; } } private MessageProtectionOrder messageProtectionOrder; public MessageProtectionOrder MessageProtectionOrder { get { return messageProtectionOrder; } set { messageProtectionOrder = value; } }
Public Property SecurityAssertion() As WseSecurityAssertion Get Return assertion End Get Set(ByVal value As WseSecurityAssertion) assertion = value End Set End Property Private m_requireDerivedKeys As Boolean Public Property RequireDerivedKeys() As Boolean Get Return m_requireDerivedKeys End Get Set(ByVal value As Boolean) m_requireDerivedKeys = value End Set End Property Private m_establishSecurityContext As Boolean Public Property EstablishSecurityContext() As Boolean Get Return m_establishSecurityContext End Get Set(ByVal value As Boolean) m_establishSecurityContext = value End Set End Property Private m_requireSignatureConfirmation As Boolean Public Property RequireSignatureConfirmation() As Boolean Get Return m_requireSignatureConfirmation End Get Set(ByVal value As Boolean) m_requireSignatureConfirmation = value End Set End Property Private m_messageProtectionOrder As MessageProtectionOrder Public Property MessageProtectionOrder() As MessageProtectionOrder Get Return m_messageProtectionOrder End Get Set(ByVal value As MessageProtectionOrder) m_messageProtectionOrder = value End Set End Property
Anule el método CreateBindingElements para definir las propiedades de enlace.
El ejemplo de código siguiente especifica el transporte, codificación de mensajes y configuración de protección de mensajes obteniendo los valores de las propiedades
SecurityAssertion
yMessageProtectionOrder
.public override BindingElementCollection CreateBindingElements() { //SecurityBindingElement sbe = bec.Find<SecurityBindingElement>(); BindingElementCollection bec = new BindingElementCollection(); // By default http transport is used SecurityBindingElement securityBinding; BindingElement transport; switch (assertion) { case WseSecurityAssertion.UsernameOverTransport: transport = new HttpsTransportBindingElement(); securityBinding = (TransportSecurityBindingElement)SecurityBindingElement.CreateUserNameOverTransportBindingElement(); if (establishSecurityContext == true) throw new InvalidOperationException("Secure Conversation is not supported for this Security Assertion Type"); if (requireSignatureConfirmation == true) throw new InvalidOperationException("Signature Confirmation is not supported for this Security Assertion Type"); break; case WseSecurityAssertion.MutualCertificate10: transport = new HttpTransportBindingElement(); securityBinding = SecurityBindingElement.CreateMutualCertificateBindingElement(MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10); if (requireSignatureConfirmation == true) throw new InvalidOperationException("Signature Confirmation is not supported for this Security Assertion Type"); ((AsymmetricSecurityBindingElement)securityBinding).MessageProtectionOrder = messageProtectionOrder; break; case WseSecurityAssertion.UsernameForCertificate: transport = new HttpTransportBindingElement(); securityBinding = (SymmetricSecurityBindingElement)SecurityBindingElement.CreateUserNameForCertificateBindingElement(); // We want signatureconfirmation on the bootstrap process // either for the application messages or for the RST/RSTR ((SymmetricSecurityBindingElement)securityBinding).RequireSignatureConfirmation = requireSignatureConfirmation; ((SymmetricSecurityBindingElement)securityBinding).MessageProtectionOrder = messageProtectionOrder; break; case WseSecurityAssertion.AnonymousForCertificate: transport = new HttpTransportBindingElement(); securityBinding = (SymmetricSecurityBindingElement)SecurityBindingElement.CreateAnonymousForCertificateBindingElement(); ((SymmetricSecurityBindingElement)securityBinding).RequireSignatureConfirmation = requireSignatureConfirmation; ((SymmetricSecurityBindingElement)securityBinding).MessageProtectionOrder = messageProtectionOrder; break; case WseSecurityAssertion.MutualCertificate11: transport = new HttpTransportBindingElement(); securityBinding = SecurityBindingElement.CreateMutualCertificateBindingElement(MessageSecurityVersion.WSSecurity11WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11); ((SymmetricSecurityBindingElement)securityBinding).RequireSignatureConfirmation = requireSignatureConfirmation; ((SymmetricSecurityBindingElement)securityBinding).MessageProtectionOrder = messageProtectionOrder; break; case WseSecurityAssertion.Kerberos: transport = new HttpTransportBindingElement(); securityBinding = (SymmetricSecurityBindingElement)SecurityBindingElement.CreateKerberosBindingElement(); ((SymmetricSecurityBindingElement)securityBinding).RequireSignatureConfirmation = requireSignatureConfirmation; ((SymmetricSecurityBindingElement)securityBinding).MessageProtectionOrder = messageProtectionOrder; break; default: throw new NotSupportedException("This supplied Wse security assertion is not supported"); } //Set defaults for the security binding securityBinding.IncludeTimestamp = true; // Derived Keys // set the preference for derived keys before creating SecureConversationBindingElement securityBinding.SetKeyDerivation(requireDerivedKeys); //Secure Conversation if (establishSecurityContext == true) { SymmetricSecurityBindingElement secureconversation = (SymmetricSecurityBindingElement)SymmetricSecurityBindingElement.CreateSecureConversationBindingElement( securityBinding, false); // This is the default //secureconversation.DefaultProtectionLevel = ProtectionLevel.EncryptAndSign; //Set defaults for the secure conversation binding secureconversation.DefaultAlgorithmSuite = SecurityAlgorithmSuite.Basic256; // We do not want signature confirmation on the application level messages // when secure conversation is enabled. secureconversation.RequireSignatureConfirmation = false; secureconversation.MessageProtectionOrder = messageProtectionOrder; secureconversation.SetKeyDerivation(requireDerivedKeys); securityBinding = secureconversation; } // Add the security binding to the binding collection bec.Add(securityBinding); // Add the message encoder. TextMessageEncodingBindingElement textelement = new TextMessageEncodingBindingElement(); textelement.MessageVersion = MessageVersion.Soap11WSAddressingAugust2004; //These are the defaults required for WSE //textelement.MessageVersion = MessageVersion.Soap11Addressing1; //textelement.WriteEncoding = System.Text.Encoding.UTF8; bec.Add(textelement); // Add the transport bec.Add(transport); // return the binding elements return bec; }
Public Overloads Overrides Function CreateBindingElements() As BindingElementCollection 'SecurityBindingElement sbe = bec.Find<SecurityBindingElement>(); Dim bec As New BindingElementCollection() ' By default http transport is used Dim securityBinding As SecurityBindingElement Dim transport As BindingElement Select Case assertion Case WseSecurityAssertion.UsernameOverTransport transport = New HttpsTransportBindingElement() securityBinding = DirectCast(SecurityBindingElement.CreateUserNameOverTransportBindingElement(), TransportSecurityBindingElement) If m_establishSecurityContext = True Then Throw New InvalidOperationException("Secure Conversation is not supported for this Security Assertion Type") End If If m_requireSignatureConfirmation = True Then Throw New InvalidOperationException("Signature Confirmation is not supported for this Security Assertion Type") End If Exit Select Case WseSecurityAssertion.MutualCertificate10 transport = New HttpTransportBindingElement() securityBinding = SecurityBindingElement.CreateMutualCertificateBindingElement(MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10) If m_requireSignatureConfirmation = True Then Throw New InvalidOperationException("Signature Confirmation is not supported for this Security Assertion Type") End If DirectCast(securityBinding, AsymmetricSecurityBindingElement).MessageProtectionOrder = m_messageProtectionOrder Exit Select Case WseSecurityAssertion.UsernameForCertificate transport = New HttpTransportBindingElement() securityBinding = DirectCast(SecurityBindingElement.CreateUserNameForCertificateBindingElement(), SymmetricSecurityBindingElement) ' We want signatureconfirmation on the bootstrap process ' either for the application messages or for the RST/RSTR DirectCast(securityBinding, SymmetricSecurityBindingElement).RequireSignatureConfirmation = m_requireSignatureConfirmation DirectCast(securityBinding, SymmetricSecurityBindingElement).MessageProtectionOrder = m_messageProtectionOrder Exit Select Case WseSecurityAssertion.AnonymousForCertificate transport = New HttpTransportBindingElement() securityBinding = DirectCast(SecurityBindingElement.CreateAnonymousForCertificateBindingElement(), SymmetricSecurityBindingElement) DirectCast(securityBinding, SymmetricSecurityBindingElement).RequireSignatureConfirmation = m_requireSignatureConfirmation DirectCast(securityBinding, SymmetricSecurityBindingElement).MessageProtectionOrder = m_messageProtectionOrder Exit Select Case WseSecurityAssertion.MutualCertificate11 transport = New HttpTransportBindingElement() securityBinding = SecurityBindingElement.CreateMutualCertificateBindingElement(MessageSecurityVersion.WSSecurity11WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11) DirectCast(securityBinding, SymmetricSecurityBindingElement).RequireSignatureConfirmation = m_requireSignatureConfirmation DirectCast(securityBinding, SymmetricSecurityBindingElement).MessageProtectionOrder = m_messageProtectionOrder Exit Select Case WseSecurityAssertion.Kerberos transport = New HttpTransportBindingElement() securityBinding = DirectCast(SecurityBindingElement.CreateKerberosBindingElement(), SymmetricSecurityBindingElement) DirectCast(securityBinding, SymmetricSecurityBindingElement).RequireSignatureConfirmation = m_requireSignatureConfirmation DirectCast(securityBinding, SymmetricSecurityBindingElement).MessageProtectionOrder = m_messageProtectionOrder Exit Select Case Else Throw New NotSupportedException("This supplied Wse security assertion is not supported") End Select 'Set defaults for the security binding securityBinding.IncludeTimestamp = True ' Derived Keys ' Set the preference for derived keys before creating the binding for SecureConversation. securityBinding.SetKeyDerivation(m_requireDerivedKeys) 'Secure Conversation If m_establishSecurityContext = True Then Dim secureconversation As SymmetricSecurityBindingElement = DirectCast(SymmetricSecurityBindingElement.CreateSecureConversationBindingElement(securityBinding, False), SymmetricSecurityBindingElement) ' This is the default 'secureconversation.DefaultProtectionLevel = ProtectionLevel.EncryptAndSign; 'Set defaults for the secure conversation binding secureconversation.DefaultAlgorithmSuite = SecurityAlgorithmSuite.Basic256 ' We do not want signature confirmation on the application level messages ' when secure conversation is enabled. secureconversation.RequireSignatureConfirmation = False secureconversation.MessageProtectionOrder = m_messageProtectionOrder secureconversation.SetKeyDerivation(m_requireDerivedKeys) securityBinding = secureconversation End If ' Add the security binding to the binding collection bec.Add(securityBinding) ' Add the message encoder. Dim textelement As New TextMessageEncodingBindingElement() textelement.MessageVersion = System.ServiceModel.Channels.MessageVersion.Soap11WSAddressingAugust2004 'These are the defaults required for WSE 'textelement.MessageVersion = MessageVersion.Soap11Addressing1; 'textelement.WriteEncoding = System.Text.Encoding.UTF8; bec.Add(textelement) ' Add the transport bec.Add(transport) ' return the binding elements Return bec End Function
En el código de la aplicación cliente, agregue el código para definir las propiedades de enlace.
El siguiente ejemplo de código especifica que el cliente WCF debe utilizar protección de los mensajes y autenticación como se define en la aserción de seguridad llave en mano
AnonymousForCertificate
de WSE 3.0. Además, se requieren sesiones seguras y claves derivadas.static void CallWseService(bool usePolicyFile) { EndpointAddress address = new EndpointAddress(new Uri("http://localhost/WSSecurityAnonymousPolicy/WSSecurityAnonymousService.asmx"), EndpointIdentity.CreateDnsIdentity("WSE2QuickStartServer")); WseHttpBinding binding = new WseHttpBinding(); if (!usePolicyFile) { binding.SecurityAssertion = WseSecurityAssertion.AnonymousForCertificate; binding.EstablishSecurityContext = true; binding.RequireDerivedKeys = true; binding.MessageProtectionOrder = MessageProtectionOrder.SignBeforeEncrypt; } else { binding.LoadPolicy("..\\wse3policyCache.config", "ServerPolicy"); } WSSecurityAnonymousServiceSoapClient client = new WSSecurityAnonymousServiceSoapClient(binding, address);
Private Shared Sub CallWseService(ByVal usePolicyFile As Boolean) Dim address As New EndpointAddress(New Uri("http://localhost/WSSecurityAnonymousPolicy/WSSecurityAnonymousService.asmx"), EndpointIdentity.CreateDnsIdentity("WSE2QuickStartServer")) Dim binding As New WseHttpBinding() If Not usePolicyFile Then binding.SecurityAssertion = WseSecurityAssertion.AnonymousForCertificate binding.EstablishSecurityContext = True binding.RequireDerivedKeys = True binding.MessageProtectionOrder = MessageProtectionOrder.SignBeforeEncrypt Else binding.LoadPolicy("..\wse3policyCache.config", "ServerPolicy") End If Dim client As New WSSecurityAnonymousServiceSoapClient(binding, address)
Ejemplo
El ejemplo de código siguiente define un enlace personalizado que expone propiedades que corresponden a las propiedades de una aserción de seguridad de llave en mano WSE 3.0. Después, se utiliza el enlace personalizado, que se denomina WseHttpBinding
, para especificar las propiedades de enlace de un cliente WCF.
using System;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography.X509Certificates;
using System.ServiceModel;
using System.ServiceModel.Security;
using System.ServiceModel.Channels;
namespace Microsoft.ServiceModel.Samples
{
// The service contract is defined in generatedClient.cs, generated from the service by
// the svcutil tool.
class Program
{
static void Main(string[] args)
{
CallWseService(true);
}
static void CallWseService(bool usePolicyFile)
{
EndpointAddress address = new EndpointAddress(new Uri("http://localhost/WSSecurityAnonymousPolicy/WSSecurityAnonymousService.asmx"),
EndpointIdentity.CreateDnsIdentity("WSE2QuickStartServer"));
WseHttpBinding binding = new WseHttpBinding();
if (!usePolicyFile)
{
binding.SecurityAssertion = WseSecurityAssertion.AnonymousForCertificate;
binding.EstablishSecurityContext = true;
binding.RequireDerivedKeys = true;
binding.MessageProtectionOrder = MessageProtectionOrder.SignBeforeEncrypt;
}
else
{
binding.LoadPolicy("..\\wse3policyCache.config", "ServerPolicy");
}
WSSecurityAnonymousServiceSoapClient client = new WSSecurityAnonymousServiceSoapClient(binding, address);
// Need to supply the credentials depending on the type of WseSecurityAssertion used.
// Anonymous only requires server certificate. UsernameForCertificate would also require
// a username and password to be supplied.
client.ClientCredentials.ServiceCertificate.SetDefaultCertificate(
StoreLocation.LocalMachine,
StoreName.My,
X509FindType.FindBySubjectDistinguishedName,
"CN=WSE2QuickStartServer");
string[] symbols = new string[] { "FABRIKAM", "CONTOSO" };
StockQuote[] quotes = client.StockQuoteRequest(symbols);
client.Close();
// Success!
foreach (StockQuote quote in quotes)
{
Console.WriteLine("");
Console.WriteLine("Symbol: " + quote.Symbol);
Console.WriteLine("\tName:\t\t\t" + quote.Name);
Console.WriteLine("\tLast Price:\t\t" + quote.Last);
Console.WriteLine("\tPrevious Change:\t" + quote.PreviousChange + "%");
}
Console.WriteLine("Press <ENTER> to terminate client.");
Console.ReadLine();
}
}
}
Imports System.Collections.Generic
Imports System.Text
Imports System.Security.Cryptography.X509Certificates
Imports System.ServiceModel
Imports System.ServiceModel.Security
Imports System.ServiceModel.Channels
Namespace Microsoft.ServiceModel.Samples
' The service contract is defined in generatedClient.vb, generated from the service by
' the svcutil tool.
Class Program
Public Shared Sub Main(ByVal args As String())
CallWseService(True)
End Sub
Private Shared Sub CallWseService(ByVal usePolicyFile As Boolean)
Dim address As New EndpointAddress(New Uri("http://localhost/WSSecurityAnonymousPolicy/WSSecurityAnonymousService.asmx"), EndpointIdentity.CreateDnsIdentity("WSE2QuickStartServer"))
Dim binding As New WseHttpBinding()
If Not usePolicyFile Then
binding.SecurityAssertion = WseSecurityAssertion.AnonymousForCertificate
binding.EstablishSecurityContext = True
binding.RequireDerivedKeys = True
binding.MessageProtectionOrder = MessageProtectionOrder.SignBeforeEncrypt
Else
binding.LoadPolicy("..\wse3policyCache.config", "ServerPolicy")
End If
Dim client As New WSSecurityAnonymousServiceSoapClient(binding, address)
' Need to supply the credentials depending on the type of WseSecurityAssertion used.
' Anonymous only requires server certificate. UsernameForCertificate would also require
' a username and password to be supplied.
client.ClientCredentials.ServiceCertificate.SetDefaultCertificate(StoreLocation.LocalMachine, StoreName.My, X509FindType.FindBySubjectDistinguishedName, "CN=WSE2QuickStartServer")
Dim symbols As String() = New String() {"FABRIKAM", "CONTOSO"}
Dim quotes As StockQuote() = client.StockQuoteRequest(symbols)
client.Close()
' Success!
For Each quote As StockQuote In quotes
Console.WriteLine("")
Console.WriteLine("Symbol: " + quote.Symbol)
Console.WriteLine("" & Chr(9) & "Name:" & Chr(9) & "" & Chr(9) & "" & Chr(9) & "" + quote.Name)
Console.WriteLine("" & Chr(9) & "Last Price:" & Chr(9) & "" & Chr(9) & "" & quote.Last)
Console.WriteLine("" & Chr(9) & "Previous Change:" & Chr(9) & "" & quote.PreviousChange & "%")
Next
Console.WriteLine("Press <ENTER> to terminate client.")
Console.ReadLine()
End Sub
End Class
End Namespace