public EndRequestRecord GetEndRequestRecord(int appStatus, byte protocolStatus)
{
FastCGIHeader header = new FastCGIHeader();
header.RequestId = Request.BeginRequestRecord.Header.RequestId;
header.Type = FastCGIHeader.TYPE.END_REQUEST;
header.Version = Request.BeginRequestRecord.Header.Version;
header.ContentLength = EndRequestBody.LENGTH;
header.PaddingLength = 0;
header.Reserved = 0;
EndRequestBody body = new EndRequestBody();
body.AppStatus = appStatus;
body.ProtocolStatus = protocolStatus;
return new EndRequestRecord()
{
Headr = header,
Body = body
};
}
private int TranslateRemainingData(byte[] buffer, int offset, int length, int replaceOffset)
{
List<byte> stdinData = new List<byte> ();
int endOffset = offset + length;
while (offset < endOffset)
{
if (!_stdinHeader.HasValue)
{
FastCGIHeader header = new FastCGIHeader (buffer, offset);
offset += FastCGIHeader.LENGTH;
if (header.RequestId != 0)
{
if (header.Type == FastCGIHeader.TYPE.STDIN)
{
_stdinHeader = header;
} else if (header.Type == FastCGIHeader.TYPE.ABORT_REQUEST)
{
AbortRequest = true;
}
}
}
if (_stdinHeader.HasValue)
{
if (_stdinHeader.Value.ContentLength == 0)
{
// empty stdin = last stdin = endofrequest
EndOfRequest = true;
break;
} else if (_stdinHeader.Value.RequestId != 0 && endOffset > offset)
{
int contentLength = Math.Min (_stdinHeader.Value.ContentLength - _stdinDataReceivedLength, endOffset - offset);
if (contentLength > 0)
{
for (int i = offset; i < offset + contentLength; i++)
{
buffer [replaceOffset] = buffer [i];
replaceOffset += 1;
}
offset += contentLength;
_stdinDataReceivedLength += contentLength;
} else
{
// empty stdin = last stdin = endofrequest
EndOfRequest = true;
break;
}
if (_stdinDataReceivedLength == _stdinHeader.Value.ContentLength)
{
offset += _stdinHeader.Value.PaddingLength;
_stdinHeader = null;
_stdinDataReceivedLength = 0;
}
}
}
}
return replaceOffset;
}
public int ParseRequest(byte[] buffer, int offset, int length)
{
int endOffset = offset + length;
while (offset < endOffset)
{
FastCGIHeader header = new FastCGIHeader(buffer, offset);
if (header.RequestId != 0)
{
if (Request == null)
Request = new FastCGIRequest();
offset += FastCGIHeader.LENGTH;
if (header.Type == FastCGIHeader.TYPE.BEGIN_REQUEST)
{
Request.BeginRequestRecord = new BeginRequestRecord()
{
Header = header,
Body = new BeginRequestBody(buffer, offset)
};
offset += header.ContentLength;
}
else if (header.Type == FastCGIHeader.TYPE.PARAMS)
{
offset = Request.ParseParams(header, buffer, offset, endOffset);
}
else
{
offset -= FastCGIHeader.LENGTH;
break;
}
offset += header.PaddingLength;
}
}
#if DEBUG
Log();
#endif
return offset;
}
public byte[] TranslateToFCGIResponse(byte[] responseData)
{
// int paddingLength = (int)Math.Ceiling(responseData.Length / 8.0) * 8 - responseData.Length;
// byte[] fcgiRespData = new byte[FastCGIHeader.LENGTH + responseData.Length + paddingLength + FastCGIHeader.LENGTH + EndRequestBody.LENGTH];
int maxChunkLength = ushort.MaxValue - 8;
int lastChunkLength;
int chuncksCount = Math.DivRem(responseData.Length, maxChunkLength, out lastChunkLength) + 1;
int padding = 8 - (lastChunkLength % 8);
if (padding == 8)
padding = 0;
byte[] fcgiRespData = new byte[(chuncksCount - 1) * (maxChunkLength + FastCGIHeader.LENGTH)
+ FastCGIHeader.LENGTH + lastChunkLength + padding
+ FastCGIHeader.LENGTH + EndRequestBody.LENGTH];
for (int i=0; i<chuncksCount; i++)
{
int contentLength = i == chuncksCount - 1 ? lastChunkLength : maxChunkLength;
int paddingLength = i == chuncksCount - 1 ? padding : 0;
FastCGIHeader stdoutHeader = new FastCGIHeader ();
stdoutHeader.RequestId = Request.BeginRequestRecord.Header.RequestId;
stdoutHeader.Type = FastCGIHeader.TYPE.STDOUT;
stdoutHeader.Version = Request.BeginRequestRecord.Header.Version;
stdoutHeader.ContentLength = (ushort)contentLength;
stdoutHeader.PaddingLength = (byte)paddingLength;
stdoutHeader.Reserved = 0;
// copy stdout header
stdoutHeader.CopyBytesTo (fcgiRespData, i * (FastCGIHeader.LENGTH + maxChunkLength));
// copy stdout body
Array.Copy (responseData, i * maxChunkLength, fcgiRespData, i * (FastCGIHeader.LENGTH + maxChunkLength) + FastCGIHeader.LENGTH, contentLength);
}
// copy endrequest record header & body
int endReqRecOffset = fcgiRespData.Length - (FastCGIHeader.LENGTH + EndRequestBody.LENGTH);
GetEndRequestRecord(0, EndRequestBody.PROTOCOL_STATUS.FCGI_REQUEST_COMPLETE)
.CopyBytesTo(fcgiRespData, endReqRecOffset);
return fcgiRespData;
}
public int ParseParams(FastCGIHeader paramsHeader, byte[] buffer, int offset, int endOffset)
{
if (paramsHeader.ContentLength > 0)
{
int paramsEndOffset = Math.Min(offset + paramsHeader.ContentLength, endOffset);
while (offset < paramsEndOffset)
{
FastCGIParam param = new FastCGIParam(buffer, offset);
Params.Add(param.Name, param);
offset = param.ParamEndOffset;
}
}
return offset;
}