#define TRACE
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Security;
using System.ServiceModel;
using System.ServiceModel.Discovery;
using System.Text;
using System.Xml;
using ArchestrAServices.Common;
using ArchestrAServices.Contract;
using ArchestrAServices.Proxy;

namespace ASBClientAccessLayer;

public class ASBClient : IASBClient1, IASBClient
{
	private ManageASBSecurityProxy AsbSecurityProxy;

	public bool Connected
	{
		get
		{
			if (AsbSecurityProxy != null && AsbSecurityProxy.State == CommunicationState.Opened)
			{
				return AsbSecurityProxy.SecureSessionEstablished;
			}
			return false;
		}
	}

	public ASBClient()
	{
		AsbSecurityProxy = null;
	}

	public ASBClient(string SrNodeName)
	{
		AsbSecurityProxy = new ManageASBSecurityProxy(SrNodeName);
		string errorMessage = string.Empty;
		if (!AsbSecurityProxy.Connect(string.Empty, out errorMessage))
		{
			SvcTrace.DiagException.TraceEvent(TraceEventType.Warning, 0, "Error opening persistent endpoint to System Authentication service on node {0}: {1}", SrNodeName, errorMessage);
		}
	}

	public bool Reconnect()
	{
		if (AsbSecurityProxy != null)
		{
			AsbSecurityProxy.Disconnect();
			string errorMessage = string.Empty;
			if (!AsbSecurityProxy.Connect(string.Empty, out errorMessage))
			{
				SvcTrace.DiagException.TraceEvent(TraceEventType.Warning, 0, "Error re-opening persistent endpoint to System Authentication service on node {0}: {1}", AsbSecurityProxy.SRNodeName, errorMessage);
				return false;
			}
			return true;
		}
		return false;
	}

	public bool Disconnect()
	{
		if (AsbSecurityProxy != null)
		{
			AsbSecurityProxy.Disconnect();
			return true;
		}
		return false;
	}

	public ArchestrAResult OpenTemporaryRegistrationEndpoint(string repositoryNode, SecureString passphrase)
	{
		ArchestrAResult archestrAResult = ResultFactory.MakeResult(ArchestrAError.BadNoCommunication, 0);
		string errorMessage = string.Empty;
		ManageASBSecurityProxy asbSecurityProxy = AsbSecurityProxy;
		if (asbSecurityProxy == null)
		{
			using (asbSecurityProxy = new ManageASBSecurityProxy(repositoryNode))
			{
				asbSecurityProxy.Connect(string.Empty, out errorMessage);
				EnableRegistration(archestrAResult, asbSecurityProxy, passphrase, out errorMessage);
			}
		}
		else
		{
			EnableRegistration(archestrAResult, asbSecurityProxy, passphrase, out errorMessage);
		}
		return archestrAResult;
	}

	private ArchestrAResult EnableRegistration(ArchestrAResult archestrAResult, ManageASBSecurityProxy Proxy, SecureString passphrase, out string errorMessage)
	{
		errorMessage = string.Empty;
		if (Proxy.State == CommunicationState.Opened && Proxy.SecureSessionEstablished)
		{
			archestrAResult = Proxy.RegisterServiceBusEnable(new SystemAuthenticationASBConfiguration
			{
				solutionName = "EnableRegistration",
				EncryptedSharedSecret = Encoding.ASCII.GetBytes(ConvertToString(passphrase))
			});
			if (archestrAResult.Status != 0)
			{
				errorMessage = "failed to open registration endpoint";
			}
		}
		return archestrAResult;
	}

	public ArchestrAResult CloseTemporaryRegistrationEndpoint(string repositoryNode)
	{
		ArchestrAResult archestrAResult = ResultFactory.MakeResult(ArchestrAError.BadNoCommunication, 0);
		string errorMessage = string.Empty;
		ManageASBSecurityProxy asbSecurityProxy = AsbSecurityProxy;
		if (asbSecurityProxy == null)
		{
			using (asbSecurityProxy = new ManageASBSecurityProxy(repositoryNode))
			{
				asbSecurityProxy.Connect(string.Empty, out errorMessage);
				DisableRegistration(archestrAResult, asbSecurityProxy, out errorMessage);
			}
		}
		else
		{
			DisableRegistration(archestrAResult, asbSecurityProxy, out errorMessage);
		}
		return archestrAResult;
	}

	private ArchestrAResult DisableRegistration(ArchestrAResult archestrAResult, ManageASBSecurityProxy Proxy, out string errorMessage)
	{
		errorMessage = string.Empty;
		if (Proxy.State == CommunicationState.Opened && Proxy.SecureSessionEstablished)
		{
			archestrAResult = Proxy.RegisterServiceBusEnable(new SystemAuthenticationASBConfiguration
			{
				solutionName = "DisableRegistration",
				EncryptedSharedSecret = null
			});
			if (archestrAResult.Status != 0)
			{
				errorMessage = "failed to close registration endpoint";
			}
		}
		return archestrAResult;
	}

	public ArchestrAResult OpenTemporaryPairingEndpoint(string repositoryNode, SecureString passphrase)
	{
		ArchestrAResult archestrAResult = ResultFactory.MakeResult(ArchestrAError.BadNoCommunication, 0);
		string errorMessage = string.Empty;
		ManageASBSecurityProxy asbSecurityProxy = AsbSecurityProxy;
		if (asbSecurityProxy == null)
		{
			using (asbSecurityProxy = new ManageASBSecurityProxy(repositoryNode))
			{
				asbSecurityProxy.Connect(string.Empty, out errorMessage);
				EnablePairing(archestrAResult, asbSecurityProxy, passphrase, out errorMessage);
			}
		}
		else
		{
			EnablePairing(archestrAResult, asbSecurityProxy, passphrase, out errorMessage);
		}
		return archestrAResult;
	}

	private ArchestrAResult EnablePairing(ArchestrAResult archestrAResult, ManageASBSecurityProxy Proxy, SecureString passphrase, out string errorMessage)
	{
		errorMessage = string.Empty;
		if (Proxy.State == CommunicationState.Opened && Proxy.SecureSessionEstablished)
		{
			archestrAResult = Proxy.RegisterServiceBusEnable(new SystemAuthenticationASBConfiguration
			{
				solutionName = "EnablePairing",
				EncryptedSharedSecret = Encoding.ASCII.GetBytes(ConvertToString(passphrase))
			});
			if (archestrAResult.Status != 0)
			{
				errorMessage = "failed to open pairing endpoint";
			}
		}
		return archestrAResult;
	}

	public ArchestrAResult CloseTemporaryPairingEndpoint(string repositoryNode)
	{
		ArchestrAResult archestrAResult = ResultFactory.MakeResult(ArchestrAError.BadNoCommunication, 0);
		string errorMessage = string.Empty;
		ManageASBSecurityProxy asbSecurityProxy = AsbSecurityProxy;
		if (asbSecurityProxy == null)
		{
			using (asbSecurityProxy = new ManageASBSecurityProxy(repositoryNode))
			{
				asbSecurityProxy.Connect(string.Empty, out errorMessage);
				DisablePairing(archestrAResult, asbSecurityProxy, out errorMessage);
			}
		}
		else
		{
			DisablePairing(archestrAResult, asbSecurityProxy, out errorMessage);
		}
		return archestrAResult;
	}

	private ArchestrAResult DisablePairing(ArchestrAResult archestrAResult, ManageASBSecurityProxy Proxy, out string errorMessage)
	{
		errorMessage = string.Empty;
		if (Proxy.State == CommunicationState.Opened && Proxy.SecureSessionEstablished)
		{
			archestrAResult = Proxy.RegisterServiceBusEnable(new SystemAuthenticationASBConfiguration
			{
				solutionName = "DisablePairing",
				EncryptedSharedSecret = null
			});
			if (archestrAResult.Status != 0)
			{
				errorMessage = "failed to close pairing endpoint";
			}
		}
		return archestrAResult;
	}

	public ArchestrAResult GetRegistrationEndpointStatus(string repositoryNode, out List<TemporaryEndpointStatus> ConfigurationData)
	{
		ConfigurationData = new List<TemporaryEndpointStatus>();
		ArchestrAResult archestrAResult = ResultFactory.MakeResult(ArchestrAError.BadNoCommunication, 0);
		string errorMessage = string.Empty;
		SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "GetRegistrationEndpointStatus: Creating new ManageASBSecurityProxy for {0}", repositoryNode);
		ManageASBSecurityProxy asbSecurityProxy = AsbSecurityProxy;
		if (asbSecurityProxy == null)
		{
			using (asbSecurityProxy = new ManageASBSecurityProxy(repositoryNode))
			{
				SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "GetRegistrationEndpointStatus: Calling Connect with empty passphrase");
				asbSecurityProxy.Connect(string.Empty, out errorMessage);
				RetrieveTemporaryEndpoint(archestrAResult, asbSecurityProxy, ConfigurationData, out errorMessage);
			}
		}
		else
		{
			RetrieveTemporaryEndpoint(archestrAResult, asbSecurityProxy, ConfigurationData, out errorMessage);
		}
		return archestrAResult;
	}

	private ArchestrAResult RetrieveTemporaryEndpoint(ArchestrAResult archestrAResult, ManageASBSecurityProxy Proxy, List<TemporaryEndpointStatus> ConfigurationData, out string errorMessage)
	{
		errorMessage = string.Empty;
		if (Proxy.State == CommunicationState.Opened && Proxy.SecureSessionEstablished)
		{
			SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "GetRegistrationEndpointStatus: Calling GetRegistrationEndpointStatus");
			archestrAResult = Proxy.GetRegistrationEndpointStatus(out var ConfigurationData2);
			if (archestrAResult.Status != 0)
			{
				SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "GetRegistrationEndpointStatus: failed to retrieve temporary endpoint status: {0}", archestrAResult.Status);
				errorMessage = "failed to retrieve temporary endpoint status";
			}
			else
			{
				StatusTemporaryEndpoint[] array = ConfigurationData2;
				for (int i = 0; i < array.Length; i++)
				{
					StatusTemporaryEndpoint statusTemporaryEndpoint = array[i];
					ConfigurationData.Add(new TemporaryEndpointStatus
					{
						EndpointName = statusTemporaryEndpoint.EndpointName,
						EndpointState = (TemporaryEndpointState)Enum.Parse(typeof(TemporaryEndpointState), statusTemporaryEndpoint.EndpointState, ignoreCase: true)
					});
				}
			}
		}
		return archestrAResult;
	}

	public RegistrationResult RegisterWithSR(string repositoryNode, SecureString passphrase)
	{
		string value = new ManageSecurityConfiguration().Registration(AsbSecurityProxy, repositoryNode, ConvertToString(passphrase), null, isRegister: true);
		RegistrationResult result = RegistrationResult.Success;
		if (!string.IsNullOrEmpty(value))
		{
			result = RegistrationResult.RepositoryNodeNotConfigured;
		}
		return result;
	}

	public RegistrationResult CopySolutionFromSR(string repositoryNode, SecureString passphrase, string solutionName)
	{
		string value = new ManageSecurityConfiguration().Registration(AsbSecurityProxy, repositoryNode, ConvertToString(passphrase), solutionName, isRegister: false);
		RegistrationResult result = RegistrationResult.Success;
		if (!string.IsNullOrEmpty(value))
		{
			result = RegistrationResult.RepositoryNodeNotConfigured;
		}
		return result;
	}

	public RegistrationResult RemoveSolutionFromThisNode(string solutionName)
	{
		if (string.IsNullOrEmpty(solutionName))
		{
			return RegistrationResult.NodeInaccessible;
		}
		string value = RegistryHandler.DeleteFromRegistry(solutionName);
		RegistrationResult result = RegistrationResult.Success;
		if (!string.IsNullOrEmpty(value))
		{
			result = RegistrationResult.RepositoryNodeNotConfigured;
		}
		return result;
	}

	public string GetPassphraseForSolution(string solutionName)
	{
		return new ManageSecurityConfiguration().GetPassphraseForSolution(solutionName);
	}

	public RegistrationResult UnregisterWithSR(string repositoryNode)
	{
		string text = new ManageSecurityConfiguration().UnRegistration(repositoryNode);
		RegistrationResult result = RegistrationResult.Success;
		if (!string.IsNullOrEmpty(text))
		{
			SvcTrace.DiagException.TraceEvent(TraceEventType.Warning, 0, string.Format("UnregisterWithSR({0}) failed: {1}", string.IsNullOrEmpty(repositoryNode) ? "<Default>" : repositoryNode, text));
			result = RegistrationResult.RepositoryNodeNotConfigured;
		}
		return result;
	}

	public RegistrationResult PairSRNodes(string remoteRepositoryNode, SecureString passphrase)
	{
		RegistrationResult result = RegistrationResult.Success;
		SvcTrace.DiagDiagnostics.TraceEvent(TraceEventType.Information, 0, $"PairSRNodes Enter: {remoteRepositoryNode}");
		ManageSecurityConfiguration manageSecurityConfiguration = new ManageSecurityConfiguration();
		string SRNodeName = string.Empty;
		RegistryHandler.GetSrNode(out SRNodeName);
		if (HostNameValidator.IsRemoteNodeSameasSRNode(remoteRepositoryNode, SRNodeName))
		{
			SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "PairSRNodes failed: Pairing to same SRNode is not allowed");
			result = RegistrationResult.NodeInaccessible;
		}
		else
		{
			string text = manageSecurityConfiguration.PairDefaultSRwithRemoteSR(remoteRepositoryNode, ConvertToString(passphrase));
			if (!string.IsNullOrEmpty(text))
			{
				SvcTrace.DiagException.TraceEvent(TraceEventType.Warning, 0, $"PairSRNodes failed: {text}");
				result = RegistrationResult.RepositoryNodeNotConfigured;
			}
		}
		return result;
	}

	public RegistrationResult UnpairSRNodes(string remoteRepositoryNode)
	{
		string SRNodeName = string.Empty;
		RegistryHandler.GetSrNode(out SRNodeName);
		RegistrationResult result = RegistrationResult.Success;
		if (HostNameValidator.IsRemoteNodeSameasSRNode(remoteRepositoryNode, SRNodeName))
		{
			SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "UnPairSRNode failed: Un-pairing to same SRNode is not allowed");
			result = RegistrationResult.NodeInaccessible;
		}
		else
		{
			string remoteSolutionName = "Archestra_" + remoteRepositoryNode;
			SvcTrace.DiagControl.TraceEvent(TraceEventType.Information, 0, string.Format("UnpairSRNodes called for solution '{0}'", string.IsNullOrEmpty(remoteRepositoryNode) ? "<Empty>" : remoteRepositoryNode));
			SynchronizeSolutionsWithSR();
			string text = new ManageSecurityConfiguration().UnpairDefaultSRfromRemoteSR(remoteSolutionName);
			if (!string.IsNullOrEmpty(text))
			{
				SvcTrace.DiagException.TraceEvent(TraceEventType.Warning, 0, $"UnpairSRNodes failed: {text}");
				result = RegistrationResult.RepositoryNodeNotConfigured;
			}
		}
		return result;
	}

	public string GetChangedASBExtraInfo()
	{
		SynchronizeSolutionsWithSR();
		string empty = string.Empty;
		string XMLExtraInfo = string.Empty;
		string SRNodeName = string.Empty;
		empty = RegistryHandler.GetSrNode(out SRNodeName);
		if (!string.IsNullOrEmpty(SRNodeName))
		{
			ManageASBSecurityProxy asbSecurityProxy = AsbSecurityProxy;
			if (asbSecurityProxy == null)
			{
				using (asbSecurityProxy = new ManageASBSecurityProxy(SRNodeName))
				{
					asbSecurityProxy.Connect(string.Empty, out empty);
					RetrieveExtraInfoChanges(asbSecurityProxy, out XMLExtraInfo, out empty);
				}
			}
			else
			{
				RetrieveExtraInfoChanges(asbSecurityProxy, out XMLExtraInfo, out empty);
			}
		}
		else
		{
			empty = "No repository node is registered";
		}
		return XMLExtraInfo;
	}

	private void RetrieveExtraInfoChanges(ManageASBSecurityProxy Proxy, out string XMLExtraInfo, out string errorMessage)
	{
		XMLExtraInfo = string.Empty;
		errorMessage = string.Empty;
		if (Proxy.State == CommunicationState.Opened && Proxy.SecureSessionEstablished && Proxy.QueryExtraInfoChanges(out XMLExtraInfo, Environment.MachineName).Status != 0)
		{
			errorMessage = "failed to retrieve temporary endpoint status";
		}
	}

	private void SynchronizeSolutionsWithSR()
	{
		if (!string.IsNullOrEmpty(RegistryHandler.GetDefaultSolutionName(out var DefaultSolutionName)) || !string.IsNullOrEmpty(RegistryHandler.GetSrNode(DefaultSolutionName, out var SRNodeName)) || !string.IsNullOrEmpty(RegistryHandler.GetSolutionPassphrase(DefaultSolutionName, out var passphrase)))
		{
			return;
		}
		using SecureString secureString = new SecureString();
		string text = passphrase;
		foreach (char c in text)
		{
			secureString.AppendChar(c);
		}
		List<string> pairedSolutionsInSR = GetPairedSolutionsInSR(SRNodeName);
		List<string> solutionsAtThisNode = GetSolutionsAtThisNode();
		if (!pairedSolutionsInSR.Any() || !solutionsAtThisNode.Any())
		{
			return;
		}
		Dictionary<string, int> dictionary = new Dictionary<string, int>();
		foreach (string item in pairedSolutionsInSR)
		{
			dictionary.Add(item, 0);
		}
		Dictionary<string, int> dictionary2 = new Dictionary<string, int>();
		foreach (string item2 in solutionsAtThisNode)
		{
			dictionary2.Add(item2, 0);
		}
		int value;
		foreach (string item3 in pairedSolutionsInSR)
		{
			if (item3 != DefaultSolutionName && !dictionary2.TryGetValue(item3, out value))
			{
				CopySolutionFromSR(SRNodeName, secureString, item3);
			}
		}
		foreach (string item4 in solutionsAtThisNode)
		{
			if (item4 != DefaultSolutionName && !dictionary.TryGetValue(item4, out value))
			{
				RemoveSolutionFromThisNode(item4);
			}
		}
	}

	public List<string> GetPairedSolutionsInSR(string repositoryNode)
	{
		List<string> SolutionNames = new List<string>();
		new ManageSecurityConfiguration().GetSolutionsPairedWithSR(AsbSecurityProxy, repositoryNode, out SolutionNames);
		return SolutionNames;
	}

	public List<string> GetSolutionsAtThisNode()
	{
		return RegistryHandler.EnumerateSolutionsAtThisNode();
	}

	public string GetDiscoveryEndpoint()
	{
		return SvcUtilities.GetDiscoveryEndpoint();
	}

	public FindResponse FindServices(FindCriteria findCriteria, out ASBDiscoveryResult Result)
	{
		Result = ASBDiscoveryResult.Unknown;
		string text = SvcUtilities.GetDiscoveryEndpoint();
		if (!string.IsNullOrEmpty(text))
		{
			if (!text.ToLower().EndsWith("/probe"))
			{
				text += "/Probe";
			}
			return InternalFindServices(text, findCriteria, out Result);
		}
		Result = ASBDiscoveryResult.DiscoveryNotAvailable;
		return null;
	}

	public EndpointDiscoveryMetadata FindServiceEndpoint(Type ContractType, Uri[] Scopes, out ASBDiscoveryResult Result)
	{
		Result = ASBDiscoveryResult.Unknown;
		string text = SvcUtilities.GetDiscoveryEndpoint();
		if (!string.IsNullOrEmpty(text))
		{
			if (!text.ToLower().EndsWith("/probe"))
			{
				text += "/Probe";
			}
			Uri probeEndpointAddress = new Uri(text);
			return InternalFindServiceEndpoint(ContractType.Name, Scopes, probeEndpointAddress, out Result);
		}
		Result = ASBDiscoveryResult.DiscoveryNotAvailable;
		return null;
	}

	public RegistrationResult UnPairRemoteSR(string RemoteRepositoryNode, out string errorMessage)
	{
		SvcTrace.DiagControl.TraceEvent(TraceEventType.Information, 0, "UnPairRemoteSR Entered");
		string SRNodeName = string.Empty;
		errorMessage = string.Empty;
		RegistryHandler.GetSrNode(out SRNodeName);
		RegistrationResult registrationResult = RegistrationResult.Success;
		if (HostNameValidator.IsRemoteNodeSameasSRNode(RemoteRepositoryNode, SRNodeName))
		{
			SvcTrace.DiagControl.TraceEvent(TraceEventType.Warning, 0, "UnPairRemoteSR failed: Un-pairing to same SRNode is not allowed");
			registrationResult = RegistrationResult.NodeInaccessible;
		}
		else
		{
			string remoteSolutionName = "Archestra_" + RemoteRepositoryNode;
			SvcTrace.DiagControl.TraceEvent(TraceEventType.Information, 0, string.Format("UnPairRemoteSR called for solution '{0}'", string.IsNullOrEmpty(RemoteRepositoryNode) ? "<Empty>" : RemoteRepositoryNode));
			SynchronizeSolutionsWithSR();
			registrationResult = new ManageSecurityConfiguration().UnPairRemoteSR(remoteSolutionName, out errorMessage);
			if (registrationResult != RegistrationResult.Success)
			{
				SvcTrace.DiagException.TraceEvent(TraceEventType.Warning, 0, $"UnPairRemoteSR failed: {errorMessage}");
			}
		}
		SvcTrace.DiagControl.TraceEvent(TraceEventType.Information, 0, "UnPairRemoteSR Exit");
		return registrationResult;
	}

	public static string ConvertToString(SecureString password)
	{
		if (password == null)
		{
			return string.Empty;
		}
		IntPtr intPtr = IntPtr.Zero;
		try
		{
			intPtr = Marshal.SecureStringToGlobalAllocUnicode(password);
			return Marshal.PtrToStringUni(intPtr);
		}
		finally
		{
			Marshal.ZeroFreeGlobalAllocUnicode(intPtr);
		}
	}

	private FindResponse InternalFindServices(string discoveryendpoint, FindCriteria findiCriteria, out ASBDiscoveryResult Result)
	{
		if (string.IsNullOrEmpty(discoveryendpoint))
		{
			Result = ASBDiscoveryResult.DiscoveryBadParameters;
			return null;
		}
		if (findiCriteria == null)
		{
			Result = ASBDiscoveryResult.DiscoveryBadParameters;
			return null;
		}
		Result = ASBDiscoveryResult.Unknown;
		try
		{
			Uri uri = new Uri(discoveryendpoint);
			EndpointAddress endpointAddress = new EndpointAddress(uri);
			using DiscoveryClient discoveryClient = new DiscoveryClient(new DiscoveryEndpoint(SvcUtilities.GetBinding(uri.ToString()), endpointAddress));
			FindResponse findResponse = discoveryClient.Find(findiCriteria);
			if (findResponse != null && findResponse.Endpoints.Count > 0)
			{
				Result = ASBDiscoveryResult.Success;
			}
			else
			{
				Result = ASBDiscoveryResult.DiscoveryReturnedNoEndpoints;
			}
			return findResponse;
		}
		catch (Exception)
		{
		}
		return null;
	}

	private EndpointDiscoveryMetadata InternalFindServiceEndpoint(string ContractName, Uri[] Scopes, Uri probeEndpointAddress, out ASBDiscoveryResult Result)
	{
		if (string.IsNullOrEmpty(ContractName))
		{
			Result = ASBDiscoveryResult.DiscoveryBadParameters;
			return null;
		}
		if (probeEndpointAddress == null)
		{
			Result = ASBDiscoveryResult.DiscoveryBadParameters;
			return null;
		}
		EndpointAddress endpointAddress = new EndpointAddress(probeEndpointAddress);
		using (DiscoveryClient discoveryClient = new DiscoveryClient(new DiscoveryEndpoint(SvcUtilities.GetBinding(probeEndpointAddress.ToString()), endpointAddress)))
		{
			FindCriteria findCriteria = new FindCriteria();
			Result = ASBDiscoveryResult.Unknown;
			try
			{
				XmlQualifiedName item = new XmlQualifiedName(ContractName, "http://ArchestrAServices.Contract");
				findCriteria.ContractTypeNames.Add(item);
				findCriteria.Scopes.Concat(Scopes.ToList());
				FindResponse findResponse = discoveryClient.Find(findCriteria);
				if (findResponse != null && findResponse.Endpoints.Count > 0)
				{
					Result = ASBDiscoveryResult.Success;
					return findResponse.Endpoints[0];
				}
				Result = ASBDiscoveryResult.DiscoveryReturnedNoEndpoints;
			}
			catch (TargetInvocationException)
			{
			}
			catch (UriFormatException)
			{
			}
		}
		return null;
	}
}