/// <summary>
/// Performs the specified SOCKS5 request.
/// </summary>
/// <param name="request">The SOCKS5 request to issue to the server.</param>
/// <returns>The SOCKS5 reply sent by the server.</returns>
/// <exception cref="ArgumentNullException">The request parameter is
/// null.</exception>
/// <exception cref="ObjectDisposedException">The object has been
/// disposed.</exception>
/// <exception cref="Socks5Exception">The request could not be performed.
/// Consult the InnerException property of the Socks5Exception to learn
/// the reason.</exception>
public SocksReply Request(SocksRequest request)
{
request.ThrowIfNull("request");
AssertValid();
try
{
byte[] bytes = request.Serialize();
stream.Write(bytes, 0, bytes.Length);
ByteBuilder b = new ByteBuilder();
using (var r = new BinaryReader(stream, Encoding.UTF8, true))
{
bytes = r.ReadBytes(4);
b.Append(bytes);
ATyp atyp = (ATyp)bytes[3];
switch (atyp)
{
case ATyp.IPv4:
case ATyp.IPv6:
b.Append(r.ReadBytes(atyp == ATyp.IPv4 ? 4 : 16));
break;
case ATyp.Domain:
byte length = r.ReadByte();
b.Append(length).Append(r.ReadBytes(length));
break;
}
b.Append(r.ReadBytes(2));
}
return(SocksReply.Deserialize(b.ToArray()));
}
catch (Exception e)
{
throw new Socks5Exception("The request could not be performed.", e);
}
}
/// <summary>
/// Sends the specified SOCKS5 reply to the connected client.
/// </summary>
/// <param name="reply">The SOCKS5 reply to send to the connected
/// client.</param>
/// <exception cref="ArgumentNullException">The reply parameter is
/// null.</exception>
/// <exception cref="ObjectDisposedException">The object has been
/// disposed.</exception>
public async Task Reply(SocksReply reply)
{
reply.ThrowIfNull("reply");
AssertValid();
var bytes = reply.Serialize();
await stream.WriteAsync(bytes, 0, bytes.Length);
}
/// <summary>
/// Sends the specified SOCKS5 reply to the connected client.
/// </summary>
/// <param name="reply">The SOCKS5 reply to send to the connected
/// client.</param>
/// <exception cref="ArgumentNullException">The reply parameter is
/// null.</exception>
/// <exception cref="ObjectDisposedException">The object has been
/// disposed.</exception>
public void Reply(SocksReply reply)
{
reply.ThrowIfNull("reply");
AssertValid();
var bytes = reply.Serialize();
stream.Write(bytes, 0, bytes.Length);
}
/// <summary>
/// Sends the specified SOCKS5 reply to the connected client.
/// </summary>
/// <param name="reply">The SOCKS5 reply to send to the connected
/// client.</param>
/// <exception cref="ArgumentNullException">The reply parameter is
/// null.</exception>
/// <exception cref="ObjectDisposedException">The object has been
/// disposed.</exception>
public void Reply(SocksReply reply) {
reply.ThrowIfNull("reply");
AssertValid();
var bytes = reply.Serialize();
stream.Write(bytes, 0, bytes.Length);
}
