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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
namespace Microsoft.AspNetCore.Server.HttpSys;
// A duplex wrapper around RequestStream and ResponseStream.
// TODO: Consider merging RequestStream and ResponseStream instead.
internal sealed class OpaqueStream : Stream
{
private readonly Stream _requestStream;
private readonly Stream _responseStream;
internal OpaqueStream(Stream requestStream, Stream responseStream)
{
_requestStream = requestStream;
_responseStream = responseStream;
}
#region Properties
public override bool CanRead
{
get { return _requestStream.CanRead; }
}
public override bool CanSeek
{
get { return false; }
}
public override bool CanTimeout
{
get { return _requestStream.CanTimeout || _responseStream.CanTimeout; }
}
public override bool CanWrite
{
get { return _responseStream.CanWrite; }
}
public override long Length
{
get { throw new NotSupportedException(Resources.Exception_NoSeek); }
}
public override long Position
{
get { throw new NotSupportedException(Resources.Exception_NoSeek); }
set { throw new NotSupportedException(Resources.Exception_NoSeek); }
}
public override int ReadTimeout
{
get { return _requestStream.ReadTimeout; }
set { _requestStream.ReadTimeout = value; }
}
public override int WriteTimeout
{
get { return _responseStream.WriteTimeout; }
set { _responseStream.WriteTimeout = value; }
}
#endregion Properties
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException(Resources.Exception_NoSeek);
}
public override void SetLength(long value)
{
throw new NotSupportedException(Resources.Exception_NoSeek);
}
#region Read
public override int Read(byte[] buffer, int offset, int count)
{
return _requestStream.Read(buffer, offset, count);
}
public override int ReadByte()
{
return _requestStream.ReadByte();
}
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback? callback, object? state)
{
return _requestStream.BeginRead(buffer, offset, count, callback, state);
}
public override int EndRead(IAsyncResult asyncResult)
{
return _requestStream.EndRead(asyncResult);
}
public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
return _requestStream.ReadAsync(buffer, offset, count, cancellationToken);
}
public override ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default)
{
return _requestStream.ReadAsync(buffer, cancellationToken);
}
public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
{
return _requestStream.CopyToAsync(destination, bufferSize, cancellationToken);
}
#endregion Read
#region Write
public override void Write(byte[] buffer, int offset, int count)
{
_responseStream.Write(buffer, offset, count);
}
public override void WriteByte(byte value)
{
_responseStream.WriteByte(value);
}
public override IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback? callback, object? state)
{
return _responseStream.BeginWrite(buffer, offset, count, callback, state);
}
public override void EndWrite(IAsyncResult asyncResult)
{
_responseStream.EndWrite(asyncResult);
}
public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
return _responseStream.WriteAsync(buffer, offset, count, cancellationToken);
}
public override ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, CancellationToken cancellationToken = default)
{
return _responseStream.WriteAsync(buffer, cancellationToken);
}
public override void Flush()
{
_responseStream.Flush();
}
public override Task FlushAsync(CancellationToken cancellationToken)
{
return _responseStream.FlushAsync(cancellationToken);
}
#endregion Write
protected override void Dispose(bool disposing)
{
// TODO: Suppress dispose?
if (disposing)
{
_requestStream.Dispose();
_responseStream.Dispose();
}
base.Dispose(disposing);
}
}
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