/// <summary>
/// Copies data from the input stream to output stream.
/// </summary>
/// <param name="inputStream">The stream to copy from.</param>
/// <param name="outputStream">The stream to copy to.</param>
/// <param name="size">The size to be copied.</param>
/// <returns>Number of remained bytes.</returns>
public static int CopyStreamToStream(Stream inputStream, Stream outputStream, int size)
{
if (size <= 0)
return 0;
using(BufferKeeper bufferKeeper = new BufferKeeper(0))
{
int bufSize = bufferKeeper.Buffer.Length;
int readSize = inputStream.Read(bufferKeeper.Buffer, 0, Math.Min(bufSize, size));
while (readSize > 0 && size > 0)
{
outputStream.Write(bufferKeeper.Buffer, 0, readSize);
size -= readSize;
if (size <= 0)
return size;
readSize = inputStream.Read(bufferKeeper.Buffer, 0, Math.Min(bufSize, size));
}
}
return size;
}
/// <summary>
/// Copies the content of the input stream into the output stream without touching a part
/// with the specified size in the end of the input stream.
/// </summary>
/// <param name="inputStream">The incoming data.</param>
/// <param name="outputStream">The output data.</param>
/// <param name="signSize">The size of the intact block.</param>
/// <returns>The untouched block wrapped into a stream.</returns>
public static byte[] CopyStreamToStreamExceptSign(Stream inputStream, Stream outputStream, int signSize)
{
using(BufferKeeper bufferKeeper = new BufferKeeper(0))
{
int bufSize = bufferKeeper.Buffer.Length;
int readSize = inputStream.Read(bufferKeeper.Buffer, 0, bufSize);
int validSize = 0;
while (readSize > 0)
{
validSize += readSize;
if (validSize > signSize)
{
// pour off the current content
outputStream.Write(bufferKeeper.Buffer, 0, validSize - signSize);
Buffer.BlockCopy(bufferKeeper.Buffer, validSize - signSize, bufferKeeper.Buffer, 0, signSize);
validSize = signSize;
}
readSize = inputStream.Read(bufferKeeper.Buffer, validSize, bufSize - validSize);
}
byte[] sign = new byte[validSize];
Buffer.BlockCopy(bufferKeeper.Buffer, 0, sign, 0, validSize);
return sign;
}
}
/// <summary>
/// Copies data from one stream to another.
/// </summary>
/// <param name="inputStream">Stream to copy from.</param>
/// <param name="outputStream">Stream to copy to.</param>
public static void CopyStreamToStream(Stream inputStream, Stream outputStream)
{
GenuineChunkedStream inputGenuineChunkedStream = inputStream as GenuineChunkedStream;
if (inputGenuineChunkedStream != null)
{
inputGenuineChunkedStream.WriteTo(outputStream);
return ;
}
using(BufferKeeper bufferKeeper = new BufferKeeper(0))
{
int bufSize = bufferKeeper.Buffer.Length;
int readSize = inputStream.Read(bufferKeeper.Buffer, 0, bufSize);
while (readSize > 0)
{
outputStream.Write(bufferKeeper.Buffer, 0, readSize);
readSize = inputStream.Read(bufferKeeper.Buffer, 0, bufSize);
}
}
}
/// <summary>
/// Fills up the destination with a sequence of bytes read from the source stream.
/// </summary>
/// <param name="destination">The destination.</param>
/// <param name="offset">The zero-based byte offset in buffer at which to begin copying bytes to the current stream.</param>
/// <param name="count">The number of bytes to be written to the destination.</param>
/// <param name="sourceStream">The source.</param>
public static unsafe void Read(byte *destination, int offset, int count, Stream sourceStream)
{
using (BufferKeeper bufferKeeper = new BufferKeeper(0))
{
while ( count > 0 )
{
// read data to the intermediate buffer
int sizeOfTheNextPortion = Math.Min(bufferKeeper.Buffer.Length, count);
GenuineUtility.ReadDataFromStream(sourceStream, bufferKeeper.Buffer, 0, sizeOfTheNextPortion);
fixed (byte *source = bufferKeeper.Buffer)
RtlCopyMemory32(destination + offset, source, sizeOfTheNextPortion);
offset += sizeOfTheNextPortion;
count -= sizeOfTheNextPortion;
}
}
}
/// <summary>
/// Processes the sender's request.
/// </summary>
/// <param name="genuineConnectionType">The type of the connection.</param>
/// <param name="input">The incoming data.</param>
/// <param name="httpServerRequestResult">The request.</param>
/// <param name="httpServerConnection">The connection.</param>
/// <param name="sequenceNo">The sequence number.</param>
/// <param name="remote">The information about remote host.</param>
public void LowLevel_ProcessSenderRequest(GenuineConnectionType genuineConnectionType, Stream input, HttpServerRequestResult httpServerRequestResult, HttpServerConnection httpServerConnection, int sequenceNo, HostInformation remote)
{
BinaryLogWriter binaryLogWriter = this.ITransportContext.BinaryLogWriter;
GenuineChunkedStream outputStream = null;
// parse the incoming stream
bool directExecution = genuineConnectionType != GenuineConnectionType.Persistent;
BinaryReader binaryReader = new BinaryReader(input);
using (BufferKeeper bufferKeeper = new BufferKeeper(0))
{
switch(genuineConnectionType)
{
case GenuineConnectionType.Persistent:
Exception gotException = null;
try
{
if (httpServerConnection.Sender_SecuritySession != null)
{
input = httpServerConnection.Sender_SecuritySession.Decrypt(input);
binaryReader = new BinaryReader(input);
}
while (binaryReader.ReadByte() == 0)
using(LabelledStream labelledStream = new LabelledStream(this.ITransportContext, input, bufferKeeper.Buffer))
{
GenuineChunkedStream receivedContent = new GenuineChunkedStream(true);
GenuineUtility.CopyStreamToStream(labelledStream, receivedContent);
this.ITransportContext.IIncomingStreamHandler.HandleMessage(receivedContent, httpServerConnection.Remote, genuineConnectionType, httpServerConnection.ConnectionName, httpServerConnection.DbgConnectionId, false, this._iMessageRegistrator, httpServerConnection.Sender_SecuritySession, httpServerRequestResult);
}
}
catch(Exception ex)
{
gotException = ex;
// LOG:
if ( binaryLogWriter != null && binaryLogWriter[LogCategory.Connection] > 0 )
{
binaryLogWriter.WriteEvent(LogCategory.Connection, "HttpServerConnectionManager.LowLevel_ProcessSenderRequest",
LogMessageType.Error, ex, null, httpServerConnection.Remote, null,
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name, null, null,
httpServerConnection.DbgConnectionId, 0, 0, 0, null, null, null, null,
"Error occurred while processing the sender request N: {0}.", httpServerConnection.Sender_SequenceNo);
}
}
if (gotException != null)
{
gotException = OperationException.WrapException(gotException);
outputStream = this.LowLevel_CreateStreamWithHeader(HttpPacketType.SenderError, sequenceNo, remote);
BinaryFormatter binaryFormatter = new BinaryFormatter(new RemotingSurrogateSelector(), new StreamingContext(StreamingContextStates.Other));
binaryFormatter.Serialize(outputStream, gotException);
}
else
{
// serialize and send the empty response
outputStream = this.LowLevel_CreateStreamWithHeader(HttpPacketType.SenderResponse, sequenceNo, remote);
MessageCoder.FillInLabelledStream(null, null, null, outputStream,
bufferKeeper.Buffer, (int) this.ITransportContext.IParameterProvider[GenuineParameter.HttpRecommendedPacketSize]);
}
break;
case GenuineConnectionType.Invocation:
// register the http context as an invocation waiters
string connectionGuid = Guid.NewGuid().ToString("N");
try
{
if (binaryReader.ReadByte() != 0)
{
// LOG:
if ( binaryLogWriter != null )
{
binaryLogWriter.WriteImplementationWarningEvent("HttpServerConnectionManager.LowLevel_ProcessSenderRequest", LogMessageType.Error,
GenuineExceptions.Get_Debugging_GeneralWarning("The invocation request doesn't contain any messages."),
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name,
"The invocation request doesn't contain any messages.");
}
}
using(LabelledStream labelledStream = new LabelledStream(this.ITransportContext, input, bufferKeeper.Buffer))
{
// process the response
this._invocation[connectionGuid] = null;
this.ITransportContext.IIncomingStreamHandler.HandleMessage(labelledStream, remote, genuineConnectionType, connectionGuid, -1, true, null, null, httpServerRequestResult);
}
if (binaryReader.ReadByte() != 1)
{
// LOG:
if ( binaryLogWriter != null )
{
binaryLogWriter.WriteImplementationWarningEvent("HttpServerConnectionManager.LowLevel_ProcessSenderRequest", LogMessageType.Error,
GenuineExceptions.Get_Debugging_GeneralWarning("The invocation request must not contain more than one message."),
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name,
"The invocation request must not contain more than one message.");
}
}
// if there is a response, serialize it
outputStream = this.LowLevel_CreateStreamWithHeader(HttpPacketType.Usual, sequenceNo, remote);
Message message = this._invocation[connectionGuid] as Message;
MessageCoder.FillInLabelledStream(message, null, null, outputStream,
bufferKeeper.Buffer, (int) this.ITransportContext.IParameterProvider[GenuineParameter.HttpRecommendedPacketSize]);
}
finally
{
this._invocation.Remove(connectionGuid);
}
break;
}
}
// report back to the client
Stream finalStream = outputStream;
this.LowLevel_SendStream(httpServerRequestResult.HttpContext, false, null, true, ref finalStream, httpServerConnection);
}
/// <summary>
/// Puts down a content of the stream.
/// </summary>
/// <param name="stream">The stream containing content.</param>
private void WriteBinaryContent(Stream stream)
{
if (stream == null)
this.BinaryWriter.Write( (bool) false );
else
{
this.BinaryWriter.Write( (bool) true );
using (BufferKeeper bufferKeeper = new BufferKeeper(0))
{
for ( ; ; )
{
int bytesRead = stream.Read(bufferKeeper.Buffer, 0, bufferKeeper.Buffer.Length);
// if the end of the stream has been reached
if (bytesRead <= 0)
{
this.BinaryWriter.Write( (int) 0);
stream.Position = 0;
return ;
}
this.BinaryWriter.Write( (int) bytesRead);
this.BinaryWriter.Write(bufferKeeper.Buffer, 0, bytesRead);
}
}
}
}
/// <summary>
/// Closes the current stream and releases any resources associated with the current stream.
/// </summary>
public override void Close()
{
// read the remaining bytes
if (this._assumedLength > 0)
using ( BufferKeeper bufferKeeper = new BufferKeeper(0) )
{
while (this._assumedLength > 0)
{
int bytesRead = this._underlyingStream.Read(bufferKeeper.Buffer, 0, (int) this._assumedLength);
this._assumedLength -= bytesRead;
if (bytesRead == 0)
throw GenuineExceptions.Get_Receive_IncorrectData();
}
}
}
