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NamedPipe.cs
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NamedPipe.cs
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using System.IO.Pipes;
namespace Firejox.App.WinSocat;
public class NamedPipeStreamPiperInfo
{
private readonly string _serverName;
private readonly string _pipeName;
public string ServerName => _serverName;
public string PipeName => _pipeName;
public NamedPipeStreamPiperInfo(string serverName, string pipeName)
{
_serverName = serverName;
_pipeName = pipeName;
}
public static NamedPipeStreamPiperInfo TryParse(AddressElement element)
{
if (!element.Tag.Equals("NPIPE", StringComparison.OrdinalIgnoreCase)) return null!;
string serverName;
string pipeName;
int sepIndex = element.Address.LastIndexOf(':');
if (sepIndex == 0 || sepIndex == -1)
serverName = ".";
else
serverName = element.Address.Substring(0, sepIndex);
pipeName = element.Address.Substring(sepIndex + 1);
return new NamedPipeStreamPiperInfo(serverName, pipeName);
}
}
public class NamedPipeListenPiperInfo
{
private readonly string _pipeName;
public string PipeName => _pipeName;
public NamedPipeListenPiperInfo(string pipeName)
{
_pipeName = pipeName;
}
public static NamedPipeListenPiperInfo TryParse(AddressElement element)
{
if (element.Tag.Equals("NPIPE-LISTEN", StringComparison.OrdinalIgnoreCase))
return new NamedPipeListenPiperInfo(element.Address);
return null!;
}
}
public class NamedPipeStreamPiperFactory : IPiperFactory
{
private readonly NamedPipeStreamPiperInfo _info;
public NamedPipeStreamPiperInfo Info => _info;
public NamedPipeStreamPiperFactory(NamedPipeStreamPiperInfo info)
{
_info = info;
}
public IPiper NewPiper()
{
var clientStream = new NamedPipeClientStream(
_info.ServerName,
_info.PipeName,
PipeDirection.InOut,
PipeOptions.Asynchronous
);
clientStream.Connect();
return new StreamPiper(clientStream);
}
public static NamedPipeStreamPiperFactory TryParse(AddressElement element)
{
NamedPipeStreamPiperInfo info;
if ((info = NamedPipeStreamPiperInfo.TryParse(element)) != null)
return new NamedPipeStreamPiperFactory(info);
return null!;
}
}
public class NamedPipeStreamPiperStrategy : PiperStrategy
{
private readonly NamedPipeStreamPiperInfo _info;
public NamedPipeStreamPiperInfo Info => _info;
public NamedPipeStreamPiperStrategy(NamedPipeStreamPiperInfo info)
{
_info = info;
}
protected override IPiper NewPiper()
{
var clientStream = new NamedPipeClientStream(
_info.ServerName,
_info.PipeName,
PipeDirection.InOut,
PipeOptions.Asynchronous
);
clientStream.Connect();
return new StreamPiper(clientStream);
}
public static NamedPipeStreamPiperStrategy TryParse(AddressElement element)
{
NamedPipeStreamPiperInfo info;
if ((info = NamedPipeStreamPiperInfo.TryParse(element)) != null)
return new NamedPipeStreamPiperStrategy(info);
return null!;
}
}
public class NamedPipeListenPiper : IListenPiper
{
private NamedPipeListenPiperInfo _info;
private NamedPipeServerStream? _serverStream;
private bool _closed;
public NamedPipeListenPiper(NamedPipeListenPiperInfo info)
{
_info = info;
_serverStream = null;
_closed = false;
}
public IPiper NewIncomingPiper()
{
_serverStream = new NamedPipeServerStream(
_info.PipeName,
PipeDirection.InOut,
-1,
PipeTransmissionMode.Byte,
PipeOptions.Asynchronous);
_serverStream.WaitForConnection();
var tmpServerStream = _serverStream;
_serverStream = null;
return new StreamPiper(tmpServerStream);
}
public async Task<IPiper> NewIncomingPiperAsync()
{
if (_closed)
throw new ObjectDisposedException("NamedPipeListenPiper is closed");
_serverStream = new NamedPipeServerStream(
_info.PipeName,
PipeDirection.InOut,
-1,
PipeTransmissionMode.Byte,
PipeOptions.Asynchronous);
await _serverStream.WaitForConnectionAsync();
var tmpServerStream = _serverStream;
_serverStream = null;
return new StreamPiper(tmpServerStream);
}
public void Close()
{
_closed = true;
if (_serverStream != null)
_serverStream.Close();
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
try
{
if (disposing && _serverStream != null)
{
_serverStream.Dispose();
}
}
finally
{
_serverStream = null;
}
}
}
public class NamedPipeListenPiperStrategy : ListenPiperStrategy
{
private readonly NamedPipeListenPiperInfo _info;
public NamedPipeListenPiperInfo Info => _info;
public NamedPipeListenPiperStrategy(NamedPipeListenPiperInfo info)
{
_info = info;
}
protected override IListenPiper NewListenPiper()
{
return new NamedPipeListenPiper(_info);
}
public static NamedPipeListenPiperStrategy TryParse(AddressElement element)
{
NamedPipeListenPiperInfo info;
if ((info = NamedPipeListenPiperInfo.TryParse(element)) != null)
return new NamedPipeListenPiperStrategy(info);
return null!;
}
}