private async ValueTask <BodyWriter> ProcessNegotiationAsync(SspiNegotiationTokenAuthenticatorState negotiationState, Message incomingMessage, BinaryNegotiation incomingNego)
{
ISspiNegotiation sspiNegotiation = negotiationState.SspiNegotiation;
byte[] outgoingBlob = sspiNegotiation.GetOutgoingBlob(incomingNego.GetNegotiationData(),
SecurityUtils.GetChannelBindingFromMessage(incomingMessage),
ExtendedProtectionPolicy);
if (sspiNegotiation.IsValidContext == false)
{
throw TraceUtility.ThrowHelperError(new SecurityNegotiationException(SR.Format(SR.InvalidSspiNegotiation)), incomingMessage);
}
// if there is no blob to send back the nego must be complete from the server side
if (outgoingBlob == null && sspiNegotiation.IsCompleted == false)
{
throw TraceUtility.ThrowHelperError(new SecurityNegotiationException(SR.Format(SR.NoBinaryNegoToSend)), incomingMessage);
}
BinaryNegotiation outgoingBinaryNegotiation;
if (outgoingBlob != null)
{
outgoingBinaryNegotiation = GetOutgoingBinaryNegotiation(sspiNegotiation, outgoingBlob);
}
else
{
outgoingBinaryNegotiation = null;
}
BodyWriter replyBody;
if (sspiNegotiation.IsCompleted)
{
ReadOnlyCollection <IAuthorizationPolicy> authorizationPolicies = await ValidateSspiNegotiationAsync(sspiNegotiation);
SecurityContextSecurityToken serviceToken;
WrappedKeySecurityToken proofToken;
int issuedKeySize;
IssueServiceToken(negotiationState, authorizationPolicies, out serviceToken, out proofToken, out issuedKeySize);
negotiationState.SetServiceToken(serviceToken);
SecurityKeyIdentifierClause externalTokenReference = IssuedSecurityTokenParameters.CreateKeyIdentifierClause(serviceToken, SecurityTokenReferenceStyle.External);
SecurityKeyIdentifierClause internalTokenReference = IssuedSecurityTokenParameters.CreateKeyIdentifierClause(serviceToken, SecurityTokenReferenceStyle.Internal);
RequestSecurityTokenResponse dummyRstr = new RequestSecurityTokenResponse(StandardsManager)
{
Context = negotiationState.Context,
KeySize = issuedKeySize,
TokenType = SecurityContextTokenUri
};
if (outgoingBinaryNegotiation != null)
{
dummyRstr.SetBinaryNegotiation(outgoingBinaryNegotiation);
}
dummyRstr.RequestedUnattachedReference = externalTokenReference;
dummyRstr.RequestedAttachedReference = internalTokenReference;
dummyRstr.SetLifetime(serviceToken.ValidFrom, serviceToken.ValidTo);
if (negotiationState.AppliesTo != null)
{
if (incomingMessage.Version.Addressing == AddressingVersion.WSAddressing10)
{
dummyRstr.SetAppliesTo <EndpointAddress10>(EndpointAddress10.FromEndpointAddress(
negotiationState.AppliesTo),
negotiationState.AppliesToSerializer);
}
else if (incomingMessage.Version.Addressing == AddressingVersion.WSAddressingAugust2004)
{
dummyRstr.SetAppliesTo <EndpointAddressAugust2004>(EndpointAddressAugust2004.FromEndpointAddress(
negotiationState.AppliesTo),
negotiationState.AppliesToSerializer);
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new ProtocolException(SR.Format(SR.AddressingVersionNotSupported, incomingMessage.Version.Addressing)));
}
}
dummyRstr.MakeReadOnly();
AddToDigest(negotiationState, dummyRstr, false);
RequestSecurityTokenResponse negotiationRstr = new RequestSecurityTokenResponse(StandardsManager)
{
RequestedSecurityToken = serviceToken,
RequestedProofToken = proofToken,
Context = negotiationState.Context,
KeySize = issuedKeySize,
TokenType = SecurityContextTokenUri
};
if (outgoingBinaryNegotiation != null)
{
negotiationRstr.SetBinaryNegotiation(outgoingBinaryNegotiation);
}
negotiationRstr.RequestedAttachedReference = internalTokenReference;
negotiationRstr.RequestedUnattachedReference = externalTokenReference;
if (negotiationState.AppliesTo != null)
{
if (incomingMessage.Version.Addressing == AddressingVersion.WSAddressing10)
{
negotiationRstr.SetAppliesTo <EndpointAddress10>(
EndpointAddress10.FromEndpointAddress(negotiationState.AppliesTo),
negotiationState.AppliesToSerializer);
}
else if (incomingMessage.Version.Addressing == AddressingVersion.WSAddressingAugust2004)
{
negotiationRstr.SetAppliesTo <EndpointAddressAugust2004>(
EndpointAddressAugust2004.FromEndpointAddress(negotiationState.AppliesTo),
negotiationState.AppliesToSerializer);
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new ProtocolException(SR.Format(SR.AddressingVersionNotSupported, incomingMessage.Version.Addressing)));
}
}
negotiationRstr.MakeReadOnly();
byte[] authenticator = ComputeAuthenticator(negotiationState, serviceToken.GetKeyBytes());
RequestSecurityTokenResponse authenticatorRstr = new RequestSecurityTokenResponse(StandardsManager)
{
Context = negotiationState.Context
};
authenticatorRstr.SetAuthenticator(authenticator);
authenticatorRstr.MakeReadOnly();
List <RequestSecurityTokenResponse> rstrList = new List <RequestSecurityTokenResponse>(2)
{
negotiationRstr,
authenticatorRstr
};
replyBody = new RequestSecurityTokenResponseCollection(rstrList, StandardsManager);
}
else
{
RequestSecurityTokenResponse rstr = new RequestSecurityTokenResponse(StandardsManager)
{
Context = negotiationState.Context
};
rstr.SetBinaryNegotiation(outgoingBinaryNegotiation);
rstr.MakeReadOnly();
AddToDigest(negotiationState, rstr, false);
replyBody = rstr;
}
return(replyBody);
}
protected virtual void VerifyIncomingMessageCore(ref Message message, TimeSpan timeout)
{
TransportSecurityProtocolFactory factory = (TransportSecurityProtocolFactory)this.SecurityProtocolFactory;
string actor = string.Empty; // message.Version.Envelope.UltimateDestinationActor;
ReceiveSecurityHeader securityHeader = factory.StandardsManager.TryCreateReceiveSecurityHeader(message, actor,
factory.IncomingAlgorithmSuite, (factory.ActAsInitiator) ? MessageDirection.Output : MessageDirection.Input);
bool expectBasicTokens;
bool expectEndorsingTokens;
bool expectSignedTokens;
IList <SupportingTokenAuthenticatorSpecification> supportingAuthenticators = factory.GetSupportingTokenAuthenticators(message.Headers.Action,
out expectSignedTokens, out expectBasicTokens, out expectEndorsingTokens);
if (securityHeader == null)
{
bool expectSupportingTokens = expectEndorsingTokens || expectSignedTokens || expectBasicTokens;
if ((factory.ActAsInitiator && (!factory.AddTimestamp || factory.SecurityBindingElement.EnableUnsecuredResponse)) ||
(!factory.ActAsInitiator && !factory.AddTimestamp && !expectSupportingTokens))
{
return;
}
else
{
if (String.IsNullOrEmpty(actor))
{
throw Diagnostics.TraceUtility.ThrowHelperError(new MessageSecurityException(
SR.Format(SR.UnableToFindSecurityHeaderInMessageNoActor)), message);
}
else
{
throw Diagnostics.TraceUtility.ThrowHelperError(new MessageSecurityException(
SR.Format(SR.UnableToFindSecurityHeaderInMessage, actor)), message);
}
}
}
securityHeader.RequireMessageProtection = false;
securityHeader.ExpectBasicTokens = expectBasicTokens;
securityHeader.ExpectSignedTokens = expectSignedTokens;
securityHeader.ExpectEndorsingTokens = expectEndorsingTokens;
securityHeader.MaxReceivedMessageSize = factory.SecurityBindingElement.MaxReceivedMessageSize;
securityHeader.ReaderQuotas = factory.SecurityBindingElement.ReaderQuotas;
// Due to compatibility, only honor this setting if this app setting is enabled
if (ServiceModelAppSettings.UseConfiguredTransportSecurityHeaderLayout)
{
securityHeader.Layout = factory.SecurityHeaderLayout;
}
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
if (!factory.ActAsInitiator)
{
securityHeader.ConfigureTransportBindingServerReceiveHeader(supportingAuthenticators);
securityHeader.ConfigureOutOfBandTokenResolver(MergeOutOfBandResolvers(supportingAuthenticators, EmptyReadOnlyCollection <SecurityTokenResolver> .Instance));
if (factory.ExpectKeyDerivation)
{
securityHeader.DerivedTokenAuthenticator = factory.DerivedKeyTokenAuthenticator;
}
}
securityHeader.ReplayDetectionEnabled = factory.DetectReplays;
securityHeader.SetTimeParameters(factory.NonceCache, factory.ReplayWindow, factory.MaxClockSkew);
securityHeader.Process(timeoutHelper.RemainingTime(), SecurityUtils.GetChannelBindingFromMessage(message), factory.ExtendedProtectionPolicy);
message = securityHeader.ProcessedMessage;
if (!factory.ActAsInitiator)
{
AttachRecipientSecurityProperty(message, securityHeader.BasicSupportingTokens, securityHeader.EndorsingSupportingTokens, securityHeader.SignedEndorsingSupportingTokens,
securityHeader.SignedSupportingTokens, securityHeader.SecurityTokenAuthorizationPoliciesMapping);
}
base.OnIncomingMessageVerified(message);
}
