internal static Datagram ParseBody(byte[] buffer, int offset, int length, bool isBodyPossible, HttpHeader header)
{
if (!isBodyPossible)
{
return(Datagram.Empty);
}
HttpTransferEncodingField transferEncoding = header.TransferEncoding;
if (transferEncoding != null && transferEncoding.TransferCodings != null && Enumerable.Any <string>((IEnumerable <string>)transferEncoding.TransferCodings, (Func <string, bool>)(coding => coding != "identity")))
{
return(HttpDatagram.ParseChunkedBody(buffer, offset, length));
}
HttpContentLengthField contentLength1 = header.ContentLength;
if (contentLength1 != null)
{
uint?contentLength2 = contentLength1.ContentLength;
if (contentLength2.HasValue)
{
return(new Datagram(buffer, offset, Math.Min((int)contentLength2.Value, length)));
}
}
HttpContentTypeField contentType = header.ContentType;
if (contentType != null && contentType.MediaType == "multipart" && contentType.MediaSubtype == "byteranges")
{
string str = contentType.Parameters["boundary"];
if (str != null)
{
byte[] bytes = Encoding.ASCII.GetBytes(string.Format((IFormatProvider)CultureInfo.InvariantCulture, "\r\n--{0}--", new object[1]
{
(object)str
}));
int num = ByteArrayExtensions.Find(buffer, offset, length, bytes) + bytes.Length;
return(new Datagram(buffer, offset, Math.Min(num - offset, length)));
}
}
return(new Datagram(buffer, offset, length));
}
private static bool IsBodyPossible(HttpHeader header)
{
return(header.ContentLength != null);
}
internal HttpDatagram(byte[] buffer, int offset, int length, HttpVersion version, HttpHeader header, Datagram body)
: base(buffer, offset, length)
{
this.Version = version;
this.Header = header;
this.Body = body;
}