protected bool TakeStartLine(SocketInput input)
{
var scan = input.ConsumingStart();
var consumed = scan;
try
{
string method;
var begin = scan;
if (!begin.GetKnownMethod(ref scan, out method))
{
if (scan.Seek(ref _vectorSpaces) == -1)
{
return(false);
}
method = begin.GetAsciiString(scan);
scan.Take();
}
begin = scan;
var needDecode = false;
var chFound = scan.Seek(ref _vectorSpaces, ref _vectorQuestionMarks, ref _vectorPercentages);
if (chFound == '%')
{
needDecode = true;
chFound = scan.Seek(ref _vectorSpaces, ref _vectorQuestionMarks);
}
var pathBegin = begin;
var pathEnd = scan;
var queryString = "";
if (chFound == '?')
{
begin = scan;
if (scan.Seek(ref _vectorSpaces) != ' ')
{
return(false);
}
queryString = begin.GetAsciiString(scan);
}
scan.Take();
begin = scan;
string httpVersion;
if (!begin.GetKnownVersion(ref scan, out httpVersion))
{
scan = begin;
if (scan.Seek(ref _vectorCRs) == -1)
{
return(false);
}
httpVersion = begin.GetAsciiString(scan);
scan.Take();
}
if (scan.Take() != '\n')
{
return(false);
}
// URIs are always encoded/escaped to ASCII https://tools.ietf.org/html/rfc3986#page-11
// Multibyte Internationalized Resource Identifiers (IRIs) are first converted to utf8;
// then encoded/escaped to ASCII https://www.ietf.org/rfc/rfc3987.txt "Mapping of IRIs to URIs"
string requestUrlPath;
if (needDecode)
{
// URI was encoded, unescape and then parse as utf8
pathEnd = UrlPathDecoder.Unescape(pathBegin, pathEnd);
requestUrlPath = pathBegin.GetUtf8String(pathEnd);
}
else
{
// URI wasn't encoded, parse as ASCII
requestUrlPath = pathBegin.GetAsciiString(pathEnd);
}
consumed = scan;
Method = method;
RequestUri = requestUrlPath;
QueryString = queryString;
HttpVersion = httpVersion;
bool caseMatches;
if (!string.IsNullOrEmpty(_pathBase) &&
(requestUrlPath.Length == _pathBase.Length || (requestUrlPath.Length > _pathBase.Length && requestUrlPath[_pathBase.Length] == '/')) &&
RequestUrlStartsWithPathBase(requestUrlPath, out caseMatches))
{
PathBase = caseMatches ? _pathBase : requestUrlPath.Substring(0, _pathBase.Length);
Path = requestUrlPath.Substring(_pathBase.Length);
}
else
{
Path = requestUrlPath;
}
return(true);
}
finally
{
input.ConsumingComplete(consumed, scan);
}
}
private bool TakeStartLine(SocketInput input)
{
var scan = input.ConsumingStart();
var consumed = scan;
try
{
var begin = scan;
if (scan.Seek(' ') == -1)
{
return(false);
}
var method = begin.GetString(scan);
scan.Take();
begin = scan;
var needDecode = false;
var chFound = scan.Seek(' ', '?', '%');
if (chFound == '%')
{
needDecode = true;
chFound = scan.Seek(' ', '?');
}
var pathBegin = begin;
var pathEnd = scan;
var queryString = "";
if (chFound == '?')
{
begin = scan;
if (scan.Seek(' ') != ' ')
{
return(false);
}
queryString = begin.GetString(scan);
}
scan.Take();
begin = scan;
if (scan.Seek('\r') == -1)
{
return(false);
}
var httpVersion = begin.GetString(scan);
scan.Take();
if (scan.Take() != '\n')
{
return(false);
}
if (needDecode)
{
pathEnd = UrlPathDecoder.Unescape(pathBegin, pathEnd);
}
var requestUrlPath = pathBegin.GetString(pathEnd);
consumed = scan;
Method = method;
RequestUri = requestUrlPath;
QueryString = queryString;
HttpVersion = httpVersion;
Path = RequestUri;
return(true);
}
finally
{
input.ConsumingComplete(consumed, scan);
}
}