//One of the two main entry points into the encoder. Called by WCF to decode a buffered byte array into a Message.
public override Message ReadMessage(ArraySegment <byte> buffer, BufferManager bufferManager, string contentType)
{
//Decompress the buffer
ArraySegment <byte> decompressedBuffer = DecompressBuffer(buffer, bufferManager);
//Use the inner encoder to decode the decompressed buffer
Message returnMessage = innerEncoder.ReadMessage(decompressedBuffer, bufferManager);
returnMessage.Properties.Encoder = this;
return(returnMessage);
}
private Message ReadChunkedBufferedMessage(Stream inputStream)
{
try
{
return(_encoder.ReadMessage(inputStream, _factory.BufferManager, _factory.MaxBufferSize, _contentType));
}
catch (XmlException xmlException)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new ProtocolException(SR.MessageXmlProtocolError, xmlException));
}
}
private async Task <Message> DecodeBufferedMessageAsync(ArraySegment <byte> buffer, Stream inputStream)
{
try
{
// if we're chunked, make sure we've consumed the whole body
if (_contentLength == -1 && buffer.Count == _factory.MaxReceivedMessageSize)
{
byte[] extraBuffer = new byte[1];
int extraReceived = await inputStream.ReadAsync(extraBuffer, 0, 1);
if (extraReceived > 0)
{
ThrowMaxReceivedMessageSizeExceeded();
}
}
try
{
return(_encoder.ReadMessage(buffer, _factory.BufferManager, _contentType));
}
catch (XmlException xmlException)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new ProtocolException(SR.MessageXmlProtocolError, xmlException));
}
}
finally
{
inputStream.Dispose();
}
}
private static Message DecodeSessiongramMessage(MsmqInputSessionChannelListener listener, MsmqInputSessionChannel channel, MessageEncoder encoder, MsmqMessageProperty messageProperty, byte[] buffer, int offset, int size)
{
Message message2;
if (size > listener.MaxReceivedMessageSize)
{
channel.FaultChannel();
listener.MsmqReceiveHelper.FinalDisposition(messageProperty);
throw listener.NormalizePoisonException(messageProperty.LookupId, MaxMessageSizeStream.CreateMaxReceivedMessageSizeExceededException(listener.MaxReceivedMessageSize));
}
if ((size + offset) > buffer.Length)
{
listener.MsmqReceiveHelper.FinalDisposition(messageProperty);
throw listener.NormalizePoisonException(messageProperty.LookupId, new ProtocolException(System.ServiceModel.SR.GetString("MsmqBadFrame")));
}
byte[] dst = listener.BufferManager.TakeBuffer(size);
Buffer.BlockCopy(buffer, offset, dst, 0, size);
try
{
Message message = null;
using (MsmqDiagnostics.BoundDecodeOperation())
{
message = encoder.ReadMessage(new ArraySegment <byte>(dst, 0, size), listener.BufferManager);
MsmqDiagnostics.TransferFromTransport(message);
}
message2 = message;
}
catch (XmlException exception)
{
channel.FaultChannel();
listener.MsmqReceiveHelper.FinalDisposition(messageProperty);
throw listener.NormalizePoisonException(messageProperty.LookupId, new ProtocolException(System.ServiceModel.SR.GetString("MsmqBadXml"), exception));
}
return(message2);
}
static Message DecodeSessiongramMessage(
MsmqInputSessionChannelListener listener,
MsmqInputSessionChannel channel,
MessageEncoder encoder,
MsmqMessageProperty messageProperty,
byte[] buffer,
int offset,
int size)
{
if (size > listener.MaxReceivedMessageSize)
{
channel.FaultChannel();
listener.MsmqReceiveHelper.FinalDisposition(messageProperty);
throw listener.NormalizePoisonException(messageProperty.LookupId, MaxMessageSizeStream.CreateMaxReceivedMessageSizeExceededException(listener.MaxReceivedMessageSize));
}
// Fix for CSDMain bug 17842
// size is derived from user data, check for corruption
if ((size + offset) > buffer.Length)
{
listener.MsmqReceiveHelper.FinalDisposition(messageProperty);
throw listener.NormalizePoisonException(messageProperty.LookupId, new ProtocolException(SR.GetString(SR.MsmqBadFrame)));
}
byte[] envelopeBuffer = listener.BufferManager.TakeBuffer(size);
Buffer.BlockCopy(buffer, offset, envelopeBuffer, 0, size);
try
{
Message message = null;
using (MsmqDiagnostics.BoundDecodeOperation())
{
message = encoder.ReadMessage(new ArraySegment <byte>(envelopeBuffer, 0, size), listener.BufferManager);
MsmqDiagnostics.TransferFromTransport(message);
}
return(message);
}
catch (XmlException e)
{
channel.FaultChannel();
listener.MsmqReceiveHelper.FinalDisposition(messageProperty);
throw listener.NormalizePoisonException(messageProperty.LookupId, new ProtocolException(SR.GetString(SR.MsmqBadXml), e));
}
}
public static Message DecodeMessage(DuplicateMessageDetector duplicateDetector, MessageEncoder encoder, BufferManager bufferManager, ArraySegment <byte> data, IPEndPoint remoteEndPoint, int interfaceIndex, bool ignoreSerializationException, out string messageHash)
{
Fx.Assert(data != null, "data can't be null");
Fx.Assert(remoteEndPoint != null, "remoteEndPoint can't be null");
Fx.Assert(encoder != null, "encoder can't be null");
Fx.Assert(bufferManager != null, "bufferManager can't be null");
Message message = null;
messageHash = null;
if (duplicateDetector == null || !duplicateDetector.IsDuplicate(data, out messageHash))
{
try
{
message = encoder.ReadMessage(data, bufferManager);
}
catch (XmlException error)
{
// Don't throw serialization exceptions when the channel supports Multicast
if (!ignoreSerializationException)
{
throw;
}
FxTrace.Exception.AsWarning(error);
}
if (message != null)
{
message.Properties.Add(RemoteEndpointMessageProperty.Name,
new RemoteEndpointMessageProperty(remoteEndPoint.Address.ToString(), remoteEndPoint.Port));
NetworkInterfaceMessageProperty networkInterfaceMessageProperty = new NetworkInterfaceMessageProperty(interfaceIndex);
networkInterfaceMessageProperty.AddTo(message);
}
}
return(message);
}
protected override Message DecodeMessage(byte[] buffer, ref int offset, ref int size, ref bool isAtEOF, TimeSpan timeout)
{
while (size > 0)
{
int bytesRead = _decoder.Decode(buffer, offset, size);
if (bytesRead > 0)
{
if (EnvelopeBuffer != null)
{
if (!object.ReferenceEquals(buffer, EnvelopeBuffer))
{
System.Buffer.BlockCopy(buffer, offset, EnvelopeBuffer, EnvelopeOffset, bytesRead);
}
EnvelopeOffset += bytesRead;
}
offset += bytesRead;
size -= bytesRead;
}
switch (_decoder.CurrentState)
{
case ClientFramingDecoderState.Fault:
_channel.Session.CloseOutputSession(_channel.GetInternalCloseTimeout());
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(FaultStringDecoder.GetFaultException(_decoder.Fault, _channel.RemoteAddress.Uri.ToString(), _messageEncoder.ContentType));
case ClientFramingDecoderState.End:
isAtEOF = true;
return(null); // we're done
case ClientFramingDecoderState.EnvelopeStart:
int envelopeSize = _decoder.EnvelopeSize;
if (envelopeSize > _maxBufferSize)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
ExceptionHelper.CreateMaxReceivedMessageSizeExceededException(_maxBufferSize));
}
EnvelopeBuffer = _bufferManager.TakeBuffer(envelopeSize);
EnvelopeOffset = 0;
EnvelopeSize = envelopeSize;
break;
case ClientFramingDecoderState.EnvelopeEnd:
if (EnvelopeBuffer != null)
{
Message message = null;
try
{
IDisposable activity = ClientDuplexConnectionReader.CreateProcessActionActivity();
using (activity)
{
message = _messageEncoder.ReadMessage(new ArraySegment <byte>(EnvelopeBuffer, 0, EnvelopeSize), _bufferManager);
}
}
catch (XmlException xmlException)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new ProtocolException(SR.MessageXmlProtocolError, xmlException));
}
EnvelopeBuffer = null;
return(message);
}
break;
}
}
return(null);
}
