private static ParseInfo Parse(byte[] buffer, int offset, int length)
{
// First Line
HttpParser parser = new HttpParser(buffer, offset, length);
string method;
string uri;
HttpVersion version;
parser.Token(out method).Space().RequestUri(out uri).Space().Version(out version).CarriageReturnLineFeed();
ParseInfo parseInfo = new ParseInfo
{
Length = length,
Version = version,
Method = method == null ? null : new HttpRequestMethod(method),
Uri = uri,
};
if (!parser.Success)
return parseInfo;
int firstLineLength = parser.Offset - offset;
// Header
int? endHeaderOffset;
HttpHeader header = new HttpHeader(GetHeaderFields(out endHeaderOffset, buffer, offset + firstLineLength, length - firstLineLength));
parseInfo.Header = header;
if (endHeaderOffset == null)
return parseInfo;
int headerLength = endHeaderOffset.Value - offset - firstLineLength;
// Body
Datagram body = ParseBody(buffer, offset + firstLineLength + headerLength, length - firstLineLength - headerLength, IsBodyPossible(header), header);
parseInfo.Body = body;
parseInfo.Length = firstLineLength + headerLength + body.Length;
return parseInfo;
}
private static ParseInfo Parse(byte[] buffer, int offset, int length)
{
// First Line
HttpParser parser = new HttpParser(buffer, offset, length);
HttpVersion version;
uint? statusCode;
Datagram reasonPhrase;
parser.Version(out version).Space().DecimalNumber(3, out statusCode).Space().SkipSpaces().ReasonPhrase(out reasonPhrase).CarriageReturnLineFeed();
ParseInfo parseInfo = new ParseInfo
{
Length = length,
Version = version,
StatusCode = statusCode,
ReasonPhrase = reasonPhrase
};
if (!parser.Success)
return parseInfo;
int firstLineLength = parser.Offset - offset;
// Header
int? endHeaderOffset;
HttpHeader header = new HttpHeader(GetHeaderFields(out endHeaderOffset, buffer, offset + firstLineLength, length - firstLineLength));
parseInfo.Header = header;
if (endHeaderOffset == null)
return parseInfo;
int headerLength = endHeaderOffset.Value - offset - firstLineLength;
// Body
Datagram body = ParseBody(buffer, offset + firstLineLength + headerLength, length - firstLineLength - headerLength, IsBodyPossible(statusCode.Value), header);
parseInfo.Body = body;
parseInfo.Length = firstLineLength + headerLength + body.Length;
return parseInfo;
}
internal HttpContentLengthField(byte[] fieldValue)
:base(FieldName, fieldValue)
{
HttpParser parser = new HttpParser(fieldValue);
uint? contentLength;
parser.DecimalNumber(out contentLength);
if (!parser.Success)
return;
ContentLength = contentLength;
}
internal HttpContentLengthField(byte[] fieldValue)
: base("Content-Length", (IList <byte>)fieldValue)
{
HttpParser httpParser = new HttpParser(fieldValue);
uint? number;
httpParser.DecimalNumber(out number);
if (!httpParser.Success)
{
return;
}
this.ContentLength = number;
}
internal HttpContentLengthField(byte[] fieldValue)
: base(FieldName, fieldValue)
{
HttpParser parser = new HttpParser(fieldValue);
uint? contentLength;
parser.DecimalNumber(out contentLength);
if (!parser.Success)
{
return;
}
ContentLength = contentLength;
}
private static ParseInfo Parse(byte[] buffer, int offset, int length)
{
// First Line
HttpParser parser = new HttpParser(buffer, offset, length);
string method;
string uri;
HttpVersion version;
parser.Token(out method).Space().RequestUri(out uri).Space().Version(out version).CarriageReturnLineFeed();
ParseInfo parseInfo = new ParseInfo
{
Length = length,
Version = version,
Method = method == null ? null : new HttpRequestMethod(method),
Uri = uri,
};
if (!parser.Success)
{
return(parseInfo);
}
int firstLineLength = parser.Offset - offset;
// Header
int? endHeaderOffset;
HttpHeader header = new HttpHeader(GetHeaderFields(out endHeaderOffset, buffer, offset + firstLineLength, length - firstLineLength));
parseInfo.Header = header;
if (endHeaderOffset == null)
{
return(parseInfo);
}
int headerLength = endHeaderOffset.Value - offset - firstLineLength;
// Body
Datagram body = ParseBody(buffer, offset + firstLineLength + headerLength, length - firstLineLength - headerLength, IsBodyPossible(header), header);
parseInfo.Body = body;
parseInfo.Length = firstLineLength + headerLength + body.Length;
return(parseInfo);
}
private static Datagram ParseChunkedBody(byte[] buffer, int offset, int length)
{
List <Datagram> contentData = new List <Datagram>();
HttpParser parser = new HttpParser(buffer, offset, length);
uint? chunkSize;
while (parser.HexadecimalNumber(out chunkSize).SkipChunkExtensions().CarriageReturnLineFeed().Success)
{
uint chunkSizeValue = chunkSize.Value;
if (chunkSizeValue == 0)
{
int?endOffset;
// HttpHeader trailerHeader = new HttpHeader(
GetHeaderFields(out endOffset, buffer, parser.Offset, offset + length - parser.Offset)
// )
;
if (endOffset != null)
{
parser.Skip(endOffset.Value - parser.Offset);
}
break;
}
int actualChunkSize = (int)Math.Min(chunkSizeValue, offset + length - parser.Offset);
contentData.Add(new Datagram(buffer, parser.Offset, actualChunkSize));
parser.Skip(actualChunkSize);
parser.CarriageReturnLineFeed();
}
int contentLength = contentData.Sum(datagram => datagram.Length);
byte[] contentBuffer = new byte[contentLength];
int contentBufferOffset = 0;
foreach (Datagram datagram in contentData)
{
datagram.Write(contentBuffer, contentBufferOffset);
contentBufferOffset += datagram.Length;
}
// Datagram content = new Datagram(contentBuffer);
return(new Datagram(buffer, offset, parser.Offset - offset));
}
private static ParseInfo Parse(byte[] buffer, int offset, int length)
{
// First Line
HttpParser parser = new HttpParser(buffer, offset, length);
HttpVersion version;
uint? statusCode;
Datagram reasonPhrase;
parser.Version(out version).Space().DecimalNumber(3, out statusCode).Space().SkipSpaces().ReasonPhrase(out reasonPhrase).CarriageReturnLineFeed();
ParseInfo parseInfo = new ParseInfo
{
Length = length,
Version = version,
StatusCode = statusCode,
ReasonPhrase = reasonPhrase
};
if (!parser.Success)
{
return(parseInfo);
}
int firstLineLength = parser.Offset - offset;
// Header
int? endHeaderOffset;
HttpHeader header = new HttpHeader(GetHeaderFields(out endHeaderOffset, buffer, offset + firstLineLength, length - firstLineLength));
parseInfo.Header = header;
if (endHeaderOffset == null)
{
return(parseInfo);
}
int headerLength = endHeaderOffset.Value - offset - firstLineLength;
// Body
Datagram body = ParseBody(buffer, offset + firstLineLength + headerLength, length - firstLineLength - headerLength, IsBodyPossible(statusCode.Value), header);
parseInfo.Body = body;
parseInfo.Length = firstLineLength + headerLength + body.Length;
return(parseInfo);
}
internal static List <KeyValuePair <string, IEnumerable <byte> > > GetHeaderFields(out int?endOffset, byte[] buffer, int offset, int length)
{
endOffset = null;
var headerFields = new List <KeyValuePair <string, IEnumerable <byte> > >();
HttpParser parser = new HttpParser(buffer, offset, length);
while (parser.Success)
{
if (parser.IsCarriageReturnLineFeed())
{
endOffset = parser.Offset + 2;
break;
}
string fieldName;
IEnumerable <byte> fieldValue;
parser.Token(out fieldName).Colon().FieldValue(out fieldValue).CarriageReturnLineFeed();
if (parser.Success)
{
headerFields.Add(new KeyValuePair <string, IEnumerable <byte> >(fieldName, fieldValue));
}
}
return(headerFields);
}
internal static List <KeyValuePair <string, IEnumerable <byte> > > GetHeaderFields(out int?endOffset, byte[] buffer, int offset, int length)
{
endOffset = new int?();
List <KeyValuePair <string, IEnumerable <byte> > > list = new List <KeyValuePair <string, IEnumerable <byte> > >();
HttpParser httpParser = new HttpParser(buffer, offset, length);
while (httpParser.Success)
{
if (httpParser.IsCarriageReturnLineFeed())
{
endOffset = new int?(httpParser.Offset + 2);
break;
}
string token;
IEnumerable <byte> fieldValue;
httpParser.Token(out token).Colon().FieldValue(out fieldValue).CarriageReturnLineFeed();
if (httpParser.Success)
{
list.Add(new KeyValuePair <string, IEnumerable <byte> >(token, fieldValue));
}
}
return(list);
}
private static Datagram ParseChunkedBody(byte[] buffer, int offset, int length)
{
List<Datagram> contentData = new List<Datagram>();
HttpParser parser = new HttpParser(buffer, offset, length);
uint? chunkSize;
while (parser.HexadecimalNumber(out chunkSize).SkipChunkExtensions().CarriageReturnLineFeed().Success)
{
uint chunkSizeValue = chunkSize.Value;
if (chunkSizeValue == 0)
{
int? endOffset;
// HttpHeader trailerHeader = new HttpHeader(
GetHeaderFields(out endOffset, buffer, parser.Offset, offset + length - parser.Offset)
// )
;
if (endOffset != null)
parser.Skip(endOffset.Value - parser.Offset);
break;
}
int actualChunkSize = (int)Math.Min(chunkSizeValue, offset + length - parser.Offset);
contentData.Add(new Datagram(buffer, parser.Offset, actualChunkSize));
parser.Skip(actualChunkSize);
parser.CarriageReturnLineFeed();
}
int contentLength = contentData.Sum(datagram => datagram.Length);
byte[] contentBuffer = new byte[contentLength];
int contentBufferOffset = 0;
foreach (Datagram datagram in contentData)
{
datagram.Write(contentBuffer, contentBufferOffset);
contentBufferOffset += datagram.Length;
}
// Datagram content = new Datagram(contentBuffer);
return new Datagram(buffer, offset, parser.Offset - offset);
}
internal static List<KeyValuePair<string, IEnumerable<byte>>> GetHeaderFields(out int? endOffset, byte[] buffer, int offset, int length)
{
endOffset = null;
var headerFields = new List<KeyValuePair<string, IEnumerable<byte>>>();
HttpParser parser = new HttpParser(buffer, offset, length);
while (parser.Success)
{
if (parser.IsCarriageReturnLineFeed())
{
endOffset = parser.Offset + 2;
break;
}
string fieldName;
IEnumerable<byte> fieldValue;
parser.Token(out fieldName).Colon().FieldValue(out fieldValue).CarriageReturnLineFeed();
if (parser.Success)
headerFields.Add(new KeyValuePair<string, IEnumerable<byte>>(fieldName, fieldValue));
}
return headerFields;
}
