/// <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);
}
/// <summary>
/// Override of the base class method. Serializes the <see cref="WsTrustRequest"/> into the <see cref="XmlDictionaryWriter"/>.
/// </summary>
/// <param name="writer"> The <see cref="XmlDictionaryWriter"/> to serialize the <see cref="WsTrustRequest"/> into.</param>
protected override void OnWriteBodyContents(XmlDictionaryWriter writer)
{
TrustSerializer.WriteRequest(writer, TrustRequest.WsTrustVersion, TrustRequest);
}
