/// <summary>
/// Makes a WSTrust call to the STS to obtain a <see cref="SecurityToken"/> first checking if the token is available in the cache.
/// </summary>
/// <returns>A <see cref="GenericXmlSecurityToken"/>.</returns>
protected override SecurityToken GetTokenCore(TimeSpan timeout)
{
_communicationObject.ThrowIfClosedOrNotOpen();
WsTrustRequest request = CreateWsTrustRequest();
WsTrustResponse trustResponse = GetCachedResponse(request);
if (trustResponse is null)
{
using (var memeoryStream = new MemoryStream())
{
var writer = XmlDictionaryWriter.CreateTextWriter(memeoryStream, Encoding.UTF8);
var serializer = new WsTrustSerializer();
serializer.WriteRequest(writer, _requestSerializationContext.TrustVersion, request);
writer.Flush();
var reader = XmlDictionaryReader.CreateTextReader(memeoryStream.ToArray(), XmlDictionaryReaderQuotas.Max);
IRequestChannel channel = ChannelFactory.CreateChannel();
try
{
channel.Open();
Message reply = channel.Request(Message.CreateMessage(MessageVersion.Soap12WSAddressing10, _requestSerializationContext.TrustActions.IssueRequest, reader));
SecurityUtils.ThrowIfNegotiationFault(reply, channel.RemoteAddress);
trustResponse = serializer.ReadResponse(reply.GetReaderAtBodyContents());
CacheSecurityTokenResponse(request, trustResponse);
}
finally
{
channel.Close();
}
}
}
return(WSTrustUtilities.CreateGenericXmlSecurityToken(request, trustResponse, _requestSerializationContext, _securityAlgorithmSuite));
}
/// <summary>
/// Sends a <see cref="WsTrustRequest"/> to a STS to obtain a <see cref="WCFSecurityToken"/>.
/// </summary>
/// <param name="trustRequest">The <see cref="WsTrustRequest" /> sent to the STS.</param>
/// <returns>A <see cref="WCFSecurityToken" /> issued by the STS.</returns>
public async virtual Task <WCFSecurityToken> IssueAsync(WsTrustRequest trustRequest)
{
_ = trustRequest ?? throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(trustRequest));
Message requestMessage = CreateRequest(trustRequest);
Message response = await Task.Factory.FromAsync(RequestChannel.BeginRequest, RequestChannel.EndRequest, requestMessage, null, TaskCreationOptions.None).ConfigureAwait(false);
if (response.IsFault)
{
MessageFault fault = MessageFault.CreateFault(response, FaultMaxBufferSize);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(FaultException.CreateFault(fault, response.Headers?.Action));
}
WsTrustResponse trustResponse = TrustSerializer.ReadResponse(response.GetReaderAtBodyContents());
WCFSecurityToken token = WSTrustUtilities.CreateGenericXmlSecurityToken(trustRequest, trustResponse, GetSerializationContext(trustRequest), null);
if (token == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.Format(SR.TokenProviderUnableToGetToken, string.IsNullOrEmpty(Address) ? ToString() : Address)));
}
return(token);
}
