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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel
{
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IdentityModel.Policy;
using System.ServiceModel.Channels;
using System.Collections;
using System.ServiceModel.Security.Tokens;
using System.ServiceModel.Security;
public class ServiceAuthenticationManager
{
public virtual ReadOnlyCollection<IAuthorizationPolicy> Authenticate(ReadOnlyCollection<IAuthorizationPolicy> authPolicy, Uri listenUri, ref Message message)
{
return authPolicy;
}
}
internal class SCTServiceAuthenticationManagerWrapper : ServiceAuthenticationManager
{
ServiceAuthenticationManager wrappedAuthenticationManager;
internal SCTServiceAuthenticationManagerWrapper(ServiceAuthenticationManager wrappedServiceAuthManager)
{
if (wrappedServiceAuthManager == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("wrappedServiceAuthManager");
}
this.wrappedAuthenticationManager = wrappedServiceAuthManager;
}
public override ReadOnlyCollection<IAuthorizationPolicy> Authenticate(ReadOnlyCollection<IAuthorizationPolicy> authPolicy, Uri listenUri, ref Message message)
{
if ((message != null) &&
(message.Properties != null) &&
(message.Properties.Security != null) &&
(message.Properties.Security.TransportToken != null) &&
(message.Properties.Security.ServiceSecurityContext != null) &&
(message.Properties.Security.ServiceSecurityContext.AuthorizationPolicies != null))
{
List<IAuthorizationPolicy> authPolicies = new List<IAuthorizationPolicy>(message.Properties.Security.ServiceSecurityContext.AuthorizationPolicies);
foreach (IAuthorizationPolicy policy in message.Properties.Security.TransportToken.SecurityTokenPolicies)
{
authPolicies.Remove(policy);
}
authPolicy = authPolicies.AsReadOnly();
}
return this.wrappedAuthenticationManager.Authenticate(authPolicy, listenUri, ref message);
}
}
internal class ServiceAuthenticationManagerWrapper : ServiceAuthenticationManager
{
ServiceAuthenticationManager wrappedAuthenticationManager;
string[] filteredActionUriCollection;
internal ServiceAuthenticationManagerWrapper(ServiceAuthenticationManager wrappedServiceAuthManager, string[] actionUriFilter)
{
if (wrappedServiceAuthManager == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("wrappedServiceAuthManager");
}
if ((actionUriFilter != null) && (actionUriFilter.Length > 0))
{
this.filteredActionUriCollection = new string[actionUriFilter.Length];
for (int i = 0; i < actionUriFilter.Length; ++i)
{
this.filteredActionUriCollection[i] = actionUriFilter[i];
}
}
this.wrappedAuthenticationManager = wrappedServiceAuthManager;
}
public override ReadOnlyCollection<IAuthorizationPolicy> Authenticate(ReadOnlyCollection<IAuthorizationPolicy> authPolicy, Uri listenUri, ref Message message)
{
if (CanSkipAuthentication(message))
{
return authPolicy;
}
if (this.filteredActionUriCollection != null)
{
for (int i = 0; i < this.filteredActionUriCollection.Length; ++i)
{
if ((message != null) &&
(message.Headers != null) &&
!String.IsNullOrEmpty(message.Headers.Action) &&
(message.Headers.Action == this.filteredActionUriCollection[i]))
{
return authPolicy;
}
}
}
return this.wrappedAuthenticationManager.Authenticate(authPolicy, listenUri, ref message);
}
//
// We skip the authentication step if the client already has an SCT and there are no Transport level tokens.
// ServiceAuthenticationManager would have been called when the SCT was issued and there is no need to do
// Authentication again. If TransportToken was present then we would call ServiceAutenticationManager as
// TransportTokens are not authenticated during SCT issuance.
//
bool CanSkipAuthentication(Message message)
{
if ((message != null) && (message.Properties != null) && (message.Properties.Security != null) && (message.Properties.Security.TransportToken == null))
{
if ((message.Properties.Security.ProtectionToken != null) &&
(message.Properties.Security.ProtectionToken.SecurityToken != null) &&
(message.Properties.Security.ProtectionToken.SecurityToken.GetType() == typeof(SecurityContextSecurityToken)))
{
return true;
}
if (message.Properties.Security.HasIncomingSupportingTokens)
{
foreach (SupportingTokenSpecification tokenSpecification in message.Properties.Security.IncomingSupportingTokens)
{
if ((tokenSpecification.SecurityTokenAttachmentMode == SecurityTokenAttachmentMode.Endorsing) &&
(tokenSpecification.SecurityToken.GetType() == typeof(SecurityContextSecurityToken)))
{
return true;
}
}
}
}
return false;
}
}
}
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