System.Security.Util.URLString.CompareUrls C# (CSharp) Method

        public static bool CompareUrls( URLString url1, URLString url2 )
        {
            if (url1 == null && url2 == null)
                return true;

            if (url1 == null || url2 == null)
                return false;

            url1.DoDeferredParse();
            url2.DoDeferredParse();

            URLString normalUrl1 = url1.SpecialNormalizeUrl();
            URLString normalUrl2 = url2.SpecialNormalizeUrl();

            // Compare protocol (case insensitive)

            if (String.Compare( normalUrl1.m_protocol, normalUrl2.m_protocol, StringComparison.OrdinalIgnoreCase) != 0)
                return false;

            // Do special processing for file urls

            if (String.Compare( normalUrl1.m_protocol, "file", StringComparison.OrdinalIgnoreCase) == 0)
            {
#if !PLATFORM_UNIX
                if (!normalUrl1.m_localSite.IsSubsetOf( normalUrl2.m_localSite ) ||
                    !normalUrl2.m_localSite.IsSubsetOf( normalUrl1.m_localSite ))
                     return false;
#else
                return url1.IsSubsetOf( url2 ) &&
                       url2.IsSubsetOf( url1 );
#endif // !PLATFORM_UNIX
            }
            else
            {
                if (String.Compare( normalUrl1.m_userpass, normalUrl2.m_userpass, StringComparison.Ordinal) != 0)
                    return false;
                
                if (!normalUrl1.m_siteString.IsSubsetOf( normalUrl2.m_siteString ) ||
                    !normalUrl2.m_siteString.IsSubsetOf( normalUrl1.m_siteString ))
                    return false;

                if (url1.m_port != url2.m_port)
                    return false;
            }

            if (!normalUrl1.m_directory.IsSubsetOf( normalUrl2.m_directory ) ||
                !normalUrl2.m_directory.IsSubsetOf( normalUrl1.m_directory ))
                return false;

            return true;
        }

 public bool Equals(URLString url)
 {
     return(URLString.CompareUrls(this, url));
 }