public void CopyToAsync(System.IO.Stream stream)
{
Timeout timeout = null;
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
args.Complete = CopyToAsync_Callback;
args.UserToken = new Tuple <Timeout, System.IO.Stream>(timeout, stream);
args.SetBuffer(new byte[_socket.ReceiveBufferSize], 0, _socket.ReceiveBufferSize);
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(CopyToAsync_OnTimeout)))
{
return;
}
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling CopyToAsync.", e);
if (OnError != null)
{
OnError(this, "Exception calling CopyToAsync", e);
}
else
{
throw;
}
}
}
private void ReadAsync_UnknownContentLength(byte[] buffer, int offset, int count)
{
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
Timeout timeout = null;
int lengthMinusPrepend = count;
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadAsync_OnTimeout)))
{
return;
}
args.Complete = ReadAsync_Callback;
args.UserToken = timeout;
args.SetBuffer(buffer, offset, count);
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling _stream.BeginRead.", e);
if (OnError != null)
{
OnError(this, "Exception calling _stream.BeginRead", e);
}
else
{
throw;
}
}
}
private void ReadAsync_KnownContentLength(byte[] buffer, int offset, int count)
{
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
Timeout timeout = null;
int lengthMinusPrepend = count;
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadAsync_OnTimeout)))
{
return;
}
// We should only try if the total bytes received is less than the content length
// otherwise we fall into an infinite wait
if (_contentLength > 0 &&
_bytesReceived < _contentLength)
{
args.Complete = ReadAsync_Callback;
args.UserToken = timeout;
// Trim down the length to read to the content length if necessary
if (_contentLength < (ulong)args.Count + _bytesReceived)
{
throw new ContentLengthExceededException("Content length exceeded.");
}
args.SetBuffer(buffer, offset, count);
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling _stream.BeginRead.", e);
if (OnError != null)
{
OnError(this, "Exception calling _stream.BeginRead", e);
}
else
{
throw;
}
}
}
else
{
throw new ContentLengthExceededException("The read was requested starting outside the content length.");
}
}
public void ReadToEndAsync()
{
if (_unknownContentLength)
{
throw new HttpNetworkStreamException("Content length must be set to call WriteAsync.");
}
Timeout timeout = null;
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadToEndAsync_OnTimeout)))
{
return;
}
args.Complete = ReadToEndAsync_Callback;
args.UserToken = new Tuple <Timeout, string>(timeout, "");
args.SetBuffer(new byte[_socket.ReceiveBufferSize], 0, _socket.ReceiveBufferSize);
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling ReadToEndAsync.", e);
if (OnError != null)
{
OnError(this, "Exception calling ReadToEndAsync", e);
}
else
{
throw;
}
}
}
private void ReadToEndAsync_Callback(StreamAsyncEventArgs e)
{
Timeout timeout = null;
Tuple <Timeout, string> userToken = (Tuple <Timeout, string>)e.UserToken;
string str = userToken.Item2;
if (!TryStopTimeout(userToken.Item1))
{
return;
}
_bytesReceived += (ulong)e.Count;
if (_bytesReceived > _contentLength)
{
throw new ContentLengthExceededException("Content received was longer than the Content Length specified.");
}
try
{
str += System.Text.Encoding.ASCII.GetString(e.Buffer, e.Offset, e.Count);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while getting a string from the buffer.", ex);
if (OnError != null)
{
OnError(this, "Exception while getting a string from the buffer.", ex);
return;
}
}
// Progress Event
try
{
if (OnProgress != null)
{
OnProgress(this, DirectionType.Download, e.Count);
}
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.ReadToEndAsync_Callback in the OnProgress event.", ex);
}
// End?
if (_bytesReceived == _contentLength)
{
try
{
if (OnStringOperationComplete != null)
{
OnStringOperationComplete(this, str);
}
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.ReadToEndAsync_Callback in the OnStringOperationComplete event.", ex);
}
}
else
{
// content left to stream
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadToEndAsync_OnTimeout)))
{
return;
}
e.UserToken = new Tuple <Timeout, string>(timeout, str);
e.SetBuffer(e.Buffer, 0, _socket.ReceiveBufferSize);
try
{
_stream.ReadAsync(e);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while calling ReadAsync.", ex);
if (OnError != null)
{
OnError(this, "Exception calling ReadAsync", ex);
}
else
{
throw;
}
}
}
}
// Private Methods (10)
private void CopyToAsync_Callback(StreamAsyncEventArgs e)
{
if (_unknownContentLength)
{
throw new HttpNetworkStreamException("Content length must be set to call WriteAsync.");
}
Timeout timeout = null;
Tuple <Timeout, System.IO.Stream> userToken = (Tuple <Timeout, System.IO.Stream>)e.UserToken;
if (!TryStopTimeout(userToken.Item1))
{
return;
}
_bytesReceived += (ulong)e.Count;
if (_bytesReceived > _contentLength)
{
throw new ContentLengthExceededException("Received more bytes than the content length specified.");
}
try
{
userToken.Item2.Write(e.Buffer, e.Offset, e.Count);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while writing to the argument stream.", ex);
if (OnError != null)
{
OnError(this, "Exception writing to stream.", ex);
return;
}
else
{
throw;
}
}
// Progress Event
try
{
if (OnProgress != null)
{
OnProgress(this, DirectionType.Download, e.Count);
}
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.CopyToAsync_Callback in the OnProgress event.", ex);
}
// End?
if (_bytesReceived == _contentLength)
{
try
{
if (OnStreamOperationComplete != null)
{
OnStreamOperationComplete(this, userToken.Item2);
}
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.CopyToAsync_Callback in the OnStreamOperationComplete event.", ex);
}
}
else
{
// content left to stream
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadToEndAsync_OnTimeout)))
{
return;
}
e.UserToken = new Tuple <Timeout, System.IO.Stream>(timeout, userToken.Item2);
e.SetBuffer(e.Buffer, 0, _socket.ReceiveBufferSize);
try
{
_stream.ReadAsync(e);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while calling ReadAsync.", ex);
if (OnError != null)
{
OnError(this, "Exception calling ReadAsync", ex);
}
else
{
throw;
}
}
}
}
private void ReadToEndAsync_Callback(StreamAsyncEventArgs e)
{
Timeout timeout = null;
Tuple<Timeout, string> userToken = (Tuple<Timeout, string>)e.UserToken;
string str = userToken.Item2;
if (!TryStopTimeout(userToken.Item1))
return;
_bytesReceived += (ulong)e.Count;
if (_bytesReceived > _contentLength)
throw new ContentLengthExceededException("Content received was longer than the Content Length specified.");
try
{
str += System.Text.Encoding.ASCII.GetString(e.Buffer, e.Offset, e.Count);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while getting a string from the buffer.", ex);
if (OnError != null)
{
OnError(this, "Exception while getting a string from the buffer.", ex);
return;
}
}
// Progress Event
try
{
if (OnProgress != null)
OnProgress(this, DirectionType.Download, e.Count);
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.ReadToEndAsync_Callback in the OnProgress event.", ex);
}
// End?
if (_bytesReceived == _contentLength)
{
try
{
if (OnStringOperationComplete != null)
OnStringOperationComplete(this, str);
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.ReadToEndAsync_Callback in the OnStringOperationComplete event.", ex);
}
}
else
{
// content left to stream
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadToEndAsync_OnTimeout)))
return;
e.UserToken = new Tuple<Timeout, string>(timeout, str);
e.SetBuffer(e.Buffer, 0, _socket.ReceiveBufferSize);
try
{
_stream.ReadAsync(e);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while calling ReadAsync.", ex);
if (OnError != null) OnError(this, "Exception calling ReadAsync", ex);
else throw;
}
}
}
// Private Methods (10)
private void CopyToAsync_Callback(StreamAsyncEventArgs e)
{
if (_unknownContentLength)
throw new HttpNetworkStreamException("Content length must be set to call WriteAsync.");
Timeout timeout = null;
Tuple<Timeout, System.IO.Stream> userToken = (Tuple<Timeout, System.IO.Stream>)e.UserToken;
if (!TryStopTimeout(userToken.Item1))
return;
_bytesReceived += (ulong)e.Count;
if (_bytesReceived > _contentLength)
throw new ContentLengthExceededException("Received more bytes than the content length specified.");
try
{
userToken.Item2.Write(e.Buffer, e.Offset, e.Count);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while writing to the argument stream.", ex);
if (OnError != null)
{
OnError(this, "Exception writing to stream.", ex);
return;
}
else throw;
}
// Progress Event
try
{
if (OnProgress != null)
OnProgress(this, DirectionType.Download, e.Count);
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.CopyToAsync_Callback in the OnProgress event.", ex);
}
// End?
if (_bytesReceived == _contentLength)
{
try
{
if (OnStreamOperationComplete != null)
OnStreamOperationComplete(this, userToken.Item2);
}
catch (Exception ex)
{
// Ignore it, its the higher level's job to deal with it.
Logger.Network.Error("An unhandled exception was caught by HttpNetworkStream.CopyToAsync_Callback in the OnStreamOperationComplete event.", ex);
}
}
else
{
// content left to stream
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadToEndAsync_OnTimeout)))
return;
e.UserToken = new Tuple<Timeout, System.IO.Stream>(timeout, userToken.Item2);
e.SetBuffer(e.Buffer, 0, _socket.ReceiveBufferSize);
try
{
_stream.ReadAsync(e);
}
catch (Exception ex)
{
Logger.Network.Error("An exception occurred while calling ReadAsync.", ex);
if (OnError != null) OnError(this, "Exception calling ReadAsync", ex);
else throw;
}
}
}
public void ReadToEndAsync()
{
if (_unknownContentLength)
throw new HttpNetworkStreamException("Content length must be set to call WriteAsync.");
Timeout timeout = null;
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadToEndAsync_OnTimeout)))
return;
args.Complete = ReadToEndAsync_Callback;
args.UserToken = new Tuple<Timeout, string>(timeout, "");
args.SetBuffer(new byte[_socket.ReceiveBufferSize], 0, _socket.ReceiveBufferSize);
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling ReadToEndAsync.", e);
if (OnError != null) OnError(this, "Exception calling ReadToEndAsync", e);
else throw;
}
}
private void ReadAsync_UnknownContentLength(byte[] buffer, int offset, int count)
{
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
Timeout timeout = null;
int lengthMinusPrepend = count;
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadAsync_OnTimeout)))
return;
args.Complete = ReadAsync_Callback;
args.UserToken = timeout;
args.SetBuffer(buffer, offset, count);
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling _stream.BeginRead.", e);
if (OnError != null) OnError(this, "Exception calling _stream.BeginRead", e);
else throw;
}
}
private void ReadAsync_KnownContentLength(byte[] buffer, int offset, int count)
{
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
Timeout timeout = null;
int lengthMinusPrepend = count;
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(ReadAsync_OnTimeout)))
return;
// We should only try if the total bytes received is less than the content length
// otherwise we fall into an infinite wait
if (_contentLength > 0 &&
_bytesReceived < _contentLength)
{
args.Complete = ReadAsync_Callback;
args.UserToken = timeout;
// Trim down the length to read to the content length if necessary
if (_contentLength < (ulong)args.Count + _bytesReceived)
throw new ContentLengthExceededException("Content length exceeded.");
args.SetBuffer(buffer, offset, count);
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling _stream.BeginRead.", e);
if (OnError != null) OnError(this, "Exception calling _stream.BeginRead", e);
else throw;
}
}
else
throw new ContentLengthExceededException("The read was requested starting outside the content length.");
}
public void CopyToAsync(System.IO.Stream stream)
{
Timeout timeout = null;
StreamAsyncEventArgs args = new StreamAsyncEventArgs();
args.Complete = CopyToAsync_Callback;
args.UserToken = new Tuple<Timeout, System.IO.Stream>(timeout, stream);
args.SetBuffer(new byte[_socket.ReceiveBufferSize], 0, _socket.ReceiveBufferSize);
if (!TryStartTimeout(_socket.ReceiveTimeout, out timeout,
new Timeout.TimeoutEvent(CopyToAsync_OnTimeout)))
return;
try
{
_stream.ReadAsync(args);
}
catch (Exception e)
{
Logger.Network.Error("An exception occurred while calling CopyToAsync.", e);
if (OnError != null) OnError(this, "Exception calling CopyToAsync", e);
else throw;
}
}