Sharpen.HttpURLConnection.GetHeaderField C# (CSharp) Method

        public virtual string GetHeaderField(string header)
        {
            return Response.GetResponseHeader(header);
        }

 /// <summary>Handle an authentication failure and possibly return a new response.</summary>
 /// <remarks>Handle an authentication failure and possibly return a new response.</remarks>
 /// <param name="conn">the connection that failed.</param>
 /// <returns>new authentication method to try.</returns>
 internal static HttpAuthMethod ScanResponse(HttpURLConnection conn)
 {
     string hdr = conn.GetHeaderField(HttpSupport.HDR_WWW_AUTHENTICATE);
     if (hdr == null || hdr.Length == 0)
     {
         return NONE;
     }
     int sp = hdr.IndexOf(' ');
     if (sp < 0)
     {
         return NONE;
     }
     string type = Sharpen.Runtime.Substring(hdr, 0, sp);
     if (Sharpen.Runtime.EqualsIgnoreCase(HttpAuthMethod.Basic.NAME, type))
     {
         return new HttpAuthMethod.Basic();
     }
     else
     {
         if (Sharpen.Runtime.EqualsIgnoreCase(HttpAuthMethod.Digest.NAME, type))
         {
             return new HttpAuthMethod.Digest(Sharpen.Runtime.Substring(hdr, sp + 1));
         }
         else
         {
             return NONE;
         }
     }
 }