protected override int GetBodyLengthFromHeader(byte[] header, int offset, int length)
{
int bodyLength = 0;
ChainHeader chainHeader = protocol.GetChainHeader(header);
if (chainHeader.Method == "GET" || chainHeader.Method == "DELETE")
{
bodyLength += 4;
}
else
{
int contentLen = Convert.ToInt32(chainHeader.Data["Content-Length"]);
bodyLength = length + contentLen + 4;
}
return(bodyLength);
}
/// <summary>
/// Filters the specified session.
/// </summary>
/// <param name="readBuffer">The read buffer.</param>
/// <param name="offset">The offset.</param>
/// <param name="length">The length.</param>
/// <param name="toBeCopied">if set to <c>true</c> [to be copied].</param>
/// <param name="rest">The rest.</param>
/// <returns></returns>
public virtual TRequestInfo Filter(byte[] readBuffer, int offset, int length, bool toBeCopied, out int rest)
{
//获取包头信息
ChainProtocol hp = new ChainProtocol();
result = readBuffer.SearchMark(offset, length, m_SearchState);
if (result == -1)
{
rest = -1;
}
else
{
m_Size = result - offset;
byte[] headerdata = new byte[m_Size];
Buffer.BlockCopy(readBuffer, offset, headerdata, 0, m_Size);
ChainHeader chainHeader = hp.GetChainHeader(headerdata);
rest = m_ParsedLength + length - m_Size;
}
if (rest >= 0)
{
var requestInfo = ProcessMatchedRequest(readBuffer, offset - m_ParsedLength, m_Size, toBeCopied);
InternalReset();
return(requestInfo);
}
else
{
m_ParsedLength += length;
m_OffsetDelta = m_ParsedLength;
rest = 0;
var expectedOffset = offset + length;
var newOffset = m_OrigOffset + m_OffsetDelta;
if (newOffset < expectedOffset)
{
Buffer.BlockCopy(readBuffer, offset - m_ParsedLength + length, readBuffer, m_OrigOffset, m_ParsedLength);
}
return(NullRequestInfo);
}
}