protected override void WriteRequestedTokenClosed(RequestSecurityTokenResponse rstr, XmlDictionaryWriter writer)
{
if (rstr.IsRequestedTokenClosed)
{
writer.WriteElementString(DriverDictionary.RequestedTokenClosed, DriverDictionary.Namespace, String.Empty);
}
}
protected override void WriteReferences(RequestSecurityTokenResponse rstr, XmlDictionaryWriter writer)
{
if (rstr.RequestedAttachedReference != null)
{
writer.WriteStartElement(DriverDictionary.Prefix.Value, DriverDictionary.RequestedAttachedReference, DriverDictionary.Namespace);
StandardsManager.SecurityTokenSerializer.WriteKeyIdentifierClause(writer, rstr.RequestedAttachedReference);
writer.WriteEndElement();
}
if (rstr.RequestedUnattachedReference != null)
{
writer.WriteStartElement(DriverDictionary.Prefix.Value, DriverDictionary.RequestedUnattachedReference, DriverDictionary.Namespace);
StandardsManager.SecurityTokenSerializer.WriteKeyIdentifierClause(writer, rstr.RequestedUnattachedReference);
writer.WriteEndElement();
}
}
// RSTR specific method public abstract byte[] GetAuthenticator(RequestSecurityTokenResponse rstr);
public abstract void GetAppliesToQName(RequestSecurityTokenResponse rstr, out string localName, out string namespaceUri);
public abstract T GetAppliesTo <T>(RequestSecurityTokenResponse rstr, XmlObjectSerializer serializer);
// RSTR specific method public abstract void WriteRequestSecurityTokenResponse(RequestSecurityTokenResponse rstr, XmlWriter w);
public abstract GenericXmlSecurityToken GetIssuedToken(RequestSecurityTokenResponse rstr, string expectedTokenType, ReadOnlyCollection <IAuthorizationPolicy> authorizationPolicies, RSA clientKey);
// RSTR specific method
public abstract GenericXmlSecurityToken GetIssuedToken(RequestSecurityTokenResponse rstr, SecurityTokenResolver resolver, IList <SecurityTokenAuthenticator> allowedAuthenticators, SecurityKeyEntropyMode keyEntropyMode, byte[] requestorEntropy,
string expectedTokenType, ReadOnlyCollection <IAuthorizationPolicy> authorizationPolicies, int defaultKeySize, bool isBearerKeyType);
// RSTR specific method public abstract SecurityToken GetEntropy(RequestSecurityTokenResponse rstr, SecurityTokenResolver resolver);
// RSTR specific method public abstract BinaryNegotiation GetBinaryNegotiation(RequestSecurityTokenResponse rstr);
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 override ValueTask <BodyWriter> ProcessRequestSecurityTokenResponseAsync(SspiNegotiationTokenAuthenticatorState negotiationState, Message request, RequestSecurityTokenResponse requestSecurityTokenResponse)
{
if (request == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(request));
}
if (requestSecurityTokenResponse == null)
{
throw TraceUtility.ThrowHelperArgumentNull(nameof(requestSecurityTokenResponse), request);
}
if (requestSecurityTokenResponse.Context != negotiationState.Context)
{
throw TraceUtility.ThrowHelperError(new SecurityNegotiationException(SR.Format(SR.BadSecurityNegotiationContext)), request);
}
AddToDigest(negotiationState, requestSecurityTokenResponse, true);
BinaryNegotiation incomingNego = requestSecurityTokenResponse.GetBinaryNegotiation();
ValidateIncomingBinaryNegotiation(incomingNego);
return(ProcessNegotiationAsync(negotiationState, request, incomingNego));
}
private static void AddToDigest(SspiNegotiationTokenAuthenticatorState sspiState, RequestSecurityTokenResponse rstr, bool wasReceived)
{
MemoryStream stream = new MemoryStream();
XmlDictionaryWriter writer = XmlDictionaryWriter.CreateTextWriter(stream);
if (wasReceived)
{
rstr.RequestSecurityTokenResponseXml.WriteTo(writer);
}
else
{
rstr.WriteTo(writer);
}
writer.Flush();
AddToDigest(sspiState.NegotiationDigest, stream);
}