private static ParserState ParseBufferInSteps(
InternetMessageFormatHeaderParser parser,
byte[] buffer,
int readsize,
out int totalBytesConsumed
)
{
ParserState state = ParserState.Invalid;
totalBytesConsumed = 0;
while (totalBytesConsumed <= buffer.Length)
{
int size = Math.Min(buffer.Length - totalBytesConsumed, readsize);
byte[] parseBuffer = new byte[size];
Buffer.BlockCopy(buffer, totalBytesConsumed, parseBuffer, 0, size);
int bytesConsumed = 0;
state = parser.ParseBuffer(parseBuffer, parseBuffer.Length, ref bytesConsumed);
totalBytesConsumed += bytesConsumed;
if (state != ParserState.NeedMoreData)
{
return(state);
}
}
return(state);
}
public void HeaderParserNullBuffer()
{
HttpHeaders headers;
InternetMessageFormatHeaderParser parser = InternetMessageFormatHeaderParserTests.CreateHeaderParser(128, out headers);
Assert.NotNull(parser);
int bytesConsumed = 0;
Assert.ThrowsArgumentNull(() => { parser.ParseBuffer(null, 0, ref bytesConsumed); }, "buffer");
}
public void HeaderParserEmptyBuffer()
{
byte[] data = InternetMessageFormatHeaderParserTests.CreateBuffer();
HttpHeaders headers;
InternetMessageFormatHeaderParser parser = InternetMessageFormatHeaderParserTests.CreateHeaderParser(data.Length, out headers);
Assert.NotNull(parser);
int bytesConsumed = 0;
ParserState state = parser.ParseBuffer(data, data.Length, ref bytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, bytesConsumed);
Assert.Empty(headers);
}
private static ParserState ParseBufferInSteps(InternetMessageFormatHeaderParser parser, byte[] buffer, int readsize, out int totalBytesConsumed)
{
ParserState state = ParserState.Invalid;
totalBytesConsumed = 0;
while (totalBytesConsumed <= buffer.Length)
{
int size = Math.Min(buffer.Length - totalBytesConsumed, readsize);
byte[] parseBuffer = new byte[size];
Buffer.BlockCopy(buffer, totalBytesConsumed, parseBuffer, 0, size);
int bytesConsumed = 0;
state = parser.ParseBuffer(parseBuffer, parseBuffer.Length, ref bytesConsumed);
totalBytesConsumed += bytesConsumed;
if (state != ParserState.NeedMoreData)
{
return state;
}
}
return state;
}
public ParserState ParseBuffer(
byte[] buffer,
int bytesReady,
ref int bytesConsumed)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
ParserState parseStatus = ParserState.NeedMoreData;
ParserState subParseStatus = ParserState.NeedMoreData;
switch (_responseStatus)
{
case HttpResponseState.StatusLine:
try
{
subParseStatus = _statusLineParser.ParseBuffer(buffer, bytesReady, ref bytesConsumed);
}
catch (Exception)
{
subParseStatus = ParserState.Invalid;
}
if (subParseStatus == ParserState.Done)
{
_responseStatus = HttpResponseState.ResponseHeaders;
subParseStatus = ParserState.NeedMoreData;
goto case HttpResponseState.ResponseHeaders;
}
else if (subParseStatus != ParserState.NeedMoreData)
{
// Report error - either Invalid or DataTooBig
parseStatus = subParseStatus;
break;
}
break; // read more data
case HttpResponseState.ResponseHeaders:
if (bytesConsumed >= bytesReady)
{
// we already can tell we need more data
break;
}
try
{
subParseStatus = _headerParser.ParseBuffer(buffer, bytesReady, ref bytesConsumed);
}
catch (Exception)
{
subParseStatus = ParserState.Invalid;
}
if (subParseStatus == ParserState.Done)
{
parseStatus = subParseStatus;
}
else if (subParseStatus != ParserState.NeedMoreData)
{
parseStatus = subParseStatus;
break;
}
break; // need more data
}
return(parseStatus);
}
