public bool ReadHeader(out string headerName, out string headerValue)
{
int index = 0;
while (index < _span.Length && ValidHeaderNameChar(_span[index]))
{
index++;
}
if (index > 0)
{
CheckResponseMsgFormat(index < _span.Length);
CheckResponseMsgFormat(_span[index] == ':');
HeaderBufferSpan headerNameSpan = _span.Substring(0, index);
if (!HttpKnownHeaderNames.TryGetHeaderName(_span.Buffer, _span.Length, out headerName))
{
headerName = headerNameSpan.ToString();
}
CheckResponseMsgFormat(headerName.Length > 0);
index++;
headerValue = _span.Substring(index).Trim().ToString();
return(true);
}
headerName = null;
headerValue = null;
return(false);
}
/// <summary>
/// Reads a header line.
/// Empty header lines are skipped, as are malformed header lines that are missing a colon character.
/// </summary>
/// <returns>true if the next header was read successfully, or false if all characters have been read.</returns>
public bool ReadHeader([NotNullWhen(true)] out string?name, [NotNullWhen(true)] out string?value)
{
int startIndex;
int length;
while (ReadLine(out startIndex, out length))
{
// Skip empty lines.
if (length == 0)
{
continue;
}
int colonIndex = Array.IndexOf(_buffer, ':', startIndex, length);
// Skip malformed header lines that are missing the colon character.
if (colonIndex == -1)
{
continue;
}
int nameLength = colonIndex - startIndex;
// If it's a known header name, use the known name instead of allocating a new string.
if (!HttpKnownHeaderNames.TryGetHeaderName(_buffer, startIndex, nameLength, out name))
{
name = new string(_buffer, startIndex, nameLength);
}
// Normalize header value by trimming whitespace.
int valueStartIndex = colonIndex + 1;
int valueLength = startIndex + length - colonIndex - 1;
CharArrayHelpers.Trim(_buffer, ref valueStartIndex, ref valueLength);
value = HttpKnownHeaderNames.GetHeaderValue(name, _buffer, valueStartIndex, valueLength);
return(true);
}
name = null;
value = null;
return(false);
}
public bool ReadHeader(out string headerName, out string headerValue)
{
int index = 0;
while (index < _span.Length && ValidHeaderNameChar(_span[index]))
{
index++;
}
if (index > 0)
{
// For compatability, skip past any whitespace before the colon, even though
// the RFC suggests there shouldn't be any.
int headerNameLength = index;
while (index < _span.Length && IsWhiteSpaceLatin1(_span[index]))
{
index++;
}
CheckResponseMsgFormat(index < _span.Length);
CheckResponseMsgFormat(_span[index] == ':');
HeaderBufferSpan headerNameSpan = _span.Substring(0, headerNameLength);
if (!HttpKnownHeaderNames.TryGetHeaderName(_span.Buffer, _span.Length, out headerName))
{
headerName = headerNameSpan.ToString();
}
CheckResponseMsgFormat(headerName.Length > 0);
index++;
headerValue = _span.Substring(index).Trim().ToString();
return(true);
}
headerName = null;
headerValue = null;
return(false);
}