ln.http/HttpHeader.cs

using System;
namespace ln.http
{
    public class HttpHeader
    {
        public String Name { get; }
        public String Value { get; }

        public HttpHeader(String rawHeader)
        {
            int colon = rawHeader.IndexOf(':');
            if (colon < 0)
                throw new FormatException("rawHeader must contain at least one colon");

            Name = rawHeader.Substring(0, colon).Trim().ToUpper();
            Value = rawHeader.Substring(colon + 1).Trim();
        }

        public HttpHeader(String headerName,String headerValue)
        {
            if (String.Empty.Equals(headerName))
                throw new ArgumentException("headerName needs to contain at least one character", nameof(headerName));

            Name = headerName.ToUpper();
            Value = headerValue.ToUpper();
        }



    }
}