| static private CharacterHexDigitToDecimal ( byte b ) : int | ||
| b | byte | |
| return | int | |
public override int Read(byte[] buffer, int offset, int count)
{
int bytesRead = 0;
while (!_bFoundEnd && (count > 0))
{
// see if we need to start reading a new chunk
if (_bytesLeft == 0)
{
// this loop stops when the end of line is found
for (;;)
{
byte b = (byte)_inputStream.ReadByte();
// see if this is the end of the length
if (b == '\r')
{
// This had better be '\n'
if ((char)_inputStream.ReadByte() != '\n')
{
throw new RemotingException(
CoreChannel.GetResourceString(
"Remoting_Http_ChunkedEncodingError"));
}
else
{
break; // we've finished reading the length
}
}
else
{
int value = HttpChannelHelper.CharacterHexDigitToDecimal(b);
// make sure value is a hex-digit
if ((value < 0) || (value > 15))
{
throw new RemotingException(
CoreChannel.GetResourceString(
"Remoting_Http_ChunkedEncodingError"));
}
// update _bytesLeft value to account for new digit on the right
_bytesLeft = (_bytesLeft * 16) + value;
}
}
if (_bytesLeft == 0)
{
// read off trailing headers and end-line
String trailerHeader;
do
{
trailerHeader = _inputStream.ReadToEndOfLine();
} while (!(trailerHeader.Length == 0));
_bFoundEnd = true;
}
}
if (!_bFoundEnd)
{
int readCount = min(_bytesLeft, count);
int bytesReadThisTime = _inputStream.Read(buffer, offset, readCount);
if (bytesReadThisTime <= 0)
{
throw new RemotingException(
CoreChannel.GetResourceString(
"Remoting_Http_ChunkedEncodingError"));
}
_bytesLeft -= bytesReadThisTime;
count -= bytesReadThisTime;
offset += bytesReadThisTime;
bytesRead += bytesReadThisTime;
// see if the end of the chunk was found
if (_bytesLeft == 0)
{
// read off "\r\n"
char ch = (char)_inputStream.ReadByte();
if (ch != '\r')
{
throw new RemotingException(
CoreChannel.GetResourceString(
"Remoting_Http_ChunkedEncodingError"));
}
ch = (char)_inputStream.ReadByte();
if (ch != '\n')
{
throw new RemotingException(
CoreChannel.GetResourceString(
"Remoting_Http_ChunkedEncodingError"));
}
}
}
} // while (count > 0)
return(bytesRead);
} // Read
public override int Read(byte[] buffer, int offset, int count)
{
int num = 0;
while (!this._bFoundEnd && (count > 0))
{
if (this._bytesLeft == 0)
{
while (true)
{
byte b = (byte)this._inputStream.ReadByte();
if (b == 13)
{
if (((ushort)this._inputStream.ReadByte()) != 10)
{
throw new RemotingException(CoreChannel.GetResourceString("Remoting_Http_ChunkedEncodingError"));
}
break;
}
int num3 = HttpChannelHelper.CharacterHexDigitToDecimal(b);
if ((num3 < 0) || (num3 > 15))
{
throw new RemotingException(CoreChannel.GetResourceString("Remoting_Http_ChunkedEncodingError"));
}
this._bytesLeft = (this._bytesLeft * 0x10) + num3;
}
if (this._bytesLeft == 0)
{
while (this._inputStream.ReadToEndOfLine().Length != 0)
{
}
this._bFoundEnd = true;
}
}
if (!this._bFoundEnd)
{
int num4 = Math.Min(this._bytesLeft, count);
int num5 = this._inputStream.Read(buffer, offset, num4);
if (num5 <= 0)
{
throw new RemotingException(CoreChannel.GetResourceString("Remoting_Http_ChunkedEncodingError"));
}
this._bytesLeft -= num5;
count -= num5;
offset += num5;
num += num5;
if (this._bytesLeft != 0)
{
continue;
}
char ch = (char)this._inputStream.ReadByte();
if (ch != '\r')
{
throw new RemotingException(CoreChannel.GetResourceString("Remoting_Http_ChunkedEncodingError"));
}
ch = (char)this._inputStream.ReadByte();
if (ch != '\n')
{
throw new RemotingException(CoreChannel.GetResourceString("Remoting_Http_ChunkedEncodingError"));
}
}
}
return(num);
}