public static HttpRequestLine Parse(byte[] buffer, int start)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (start < 0 || start >= buffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(start));
}
var crLfIndex = buffer.IndexOfSubarray(CoreHelper.CrLfBytes, start, -1);
if (crLfIndex == -1)
{
throw new BadHttpDataException();
}
// method
var indexOfSpaceAfterMethod = buffer.IndexOf(SPACE_BYTE, start);
if (indexOfSpaceAfterMethod == -1)
{
throw new BadHttpDataException();
}
var length = indexOfSpaceAfterMethod - start;
var method = buffer.ToAsciiString(start, length);
// advance
start = indexOfSpaceAfterMethod + 1; // skip ' '
// uri
var indexOfSpaceAfterUri = buffer.IndexOf(SPACE_BYTE, start);
length = indexOfSpaceAfterUri - start;
var uri = buffer.ToAsciiString(start, length);
// advance
start = indexOfSpaceAfterUri + 1; // skip ' '
// http version
length = crLfIndex - start;
var version = buffer.ToAsciiString(start, length);
try
{
var line = new HttpRequestLine(new HttpMethod(method), uri, version);
return(line);
}
catch (ArgumentException ex)
{
throw new BadHttpDataException("Could not parse request line", ex);
}
catch (FormatException ex)
{
throw new BadHttpDataException("Could not parse request line", ex);
}
}
public static HttpRequestMetadata Parse(byte[] buffer, int start)
{
// parse line
var line = HttpRequestLine.Parse(buffer, start);
start += line.ByteCount;
// parse headers
var headers = HttpHeaderCollection.Parse(buffer, start);
var metadata = new HttpRequestMetadata(line, headers);
return(metadata);
}
public HttpRequestMetadata(HttpRequestLine line, HttpHeaderCollection headers)
{
this.Line = line ?? throw new ArgumentNullException(nameof(line));
this.Headers = headers ?? throw new ArgumentNullException(nameof(headers));
}