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//----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System;
using System.ServiceModel;
using System.Security.Principal;
using System.Collections.Generic;
abstract class NamedPipeTransportManager
: ConnectionOrientedTransportManager<NamedPipeChannelListener>, ITransportManagerRegistration
{
List<SecurityIdentifier> allowedUsers;
HostNameComparisonMode hostNameComparisonMode;
Uri listenUri;
protected NamedPipeTransportManager(Uri listenUri)
{
this.listenUri = listenUri;
}
protected void SetAllowedUsers(List<SecurityIdentifier> allowedUsers)
{
this.allowedUsers = allowedUsers;
}
protected void SetHostNameComparisonMode(HostNameComparisonMode hostNameComparisonMode)
{
this.hostNameComparisonMode = hostNameComparisonMode;
}
internal List<SecurityIdentifier> AllowedUsers
{
get
{
return this.allowedUsers;
}
}
public HostNameComparisonMode HostNameComparisonMode
{
get
{
return this.hostNameComparisonMode;
}
protected set
{
HostNameComparisonModeHelper.Validate(value);
lock (base.ThisLock)
{
ThrowIfOpen();
this.hostNameComparisonMode = value;
}
}
}
public Uri ListenUri
{
get
{
return this.listenUri;
}
}
internal override string Scheme
{
get { return Uri.UriSchemeNetPipe; }
}
bool AreAllowedUsersEqual(List<SecurityIdentifier> otherAllowedUsers)
{
return ((this.allowedUsers == otherAllowedUsers) ||
(IsSubset(this.allowedUsers, otherAllowedUsers) && IsSubset(otherAllowedUsers, this.allowedUsers)));
}
protected virtual bool IsCompatible(NamedPipeChannelListener channelListener)
{
if (channelListener.InheritBaseAddressSettings)
{
return true;
}
return (
base.IsCompatible(channelListener)
&& this.AreAllowedUsersEqual(channelListener.AllowedUsers)
&& (this.HostNameComparisonMode == channelListener.HostNameComparisonMode)
);
}
static bool IsSubset(List<SecurityIdentifier> users1, List<SecurityIdentifier> users2)
{
if (users1 == null)
{
return true;
}
foreach (SecurityIdentifier user in users1)
{
if (!users2.Contains(user))
{
return false;
}
}
return true;
}
internal override void OnClose(TimeSpan timeout)
{
Cleanup();
}
internal override void OnAbort()
{
Cleanup();
base.OnAbort();
}
void Cleanup()
{
NamedPipeChannelListener.StaticTransportManagerTable.UnregisterUri(this.ListenUri, this.HostNameComparisonMode);
}
protected virtual void OnSelecting(NamedPipeChannelListener channelListener)
{ }
IList<TransportManager> ITransportManagerRegistration.Select(TransportChannelListener channelListener)
{
OnSelecting((NamedPipeChannelListener)channelListener);
IList<TransportManager> result = null;
if (this.IsCompatible((NamedPipeChannelListener)channelListener))
{
result = new List<TransportManager>();
result.Add(this);
}
return result;
}
}
}
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