MD5 string encrypt and verify

String'i MD5 ile şifreleyip doğrulayan methodlar...

public static string MD5String(this string value)

{

  MD5 md5Hasher =MD5.Create();

  byte[] data= md5Hasher.ComputeHash(Encoding.Default.GetBytes(value));

  

  StringBuilder sBuilder = new StringBuilder();

  for(int i=0; i < data.Length; i++)

  {

     sBuilder.Append(data[i].ToString("x2"));

  }

  return sBuilder.ToString();

}

public static bool VerifyMD5String(this string value)

{

  string hashOfInput = MD5String(value);

  StringComparer comparer = StringComparer.OrdinalIgnoreCase;

  return 0== comparer.Compare(hashOfInput,hash) ? true : false;

}

Base64 String Encode and Decode Methods

Mutlaka bir yerlerde işimize yarayacağını düşündüm güzel bir method örneği;

public static string Base64StringEncode(this string value)

{

   byte[] toEncodeAsBytes= ASCIIEncoding.ASCII.GetBytes(value);

   string returnValue= Convert.ToBase64String(toEncodeAsBytes);

   return returnValue;

}

public static string Base64StringDecode(this string value)

{

   byte[] encodedDataAsBytes=Convert.FromBase64String(value);

   string returnValue= ASCIIEncoding.ASCII.GetString(encodedDataAsBytes);

   return returnValue;

}

Port Scanner Class

Güzel bir örnek oldu basit ve hızlı..

    public class PortScanner

    {

        public List<int> ActivePorts = new List<int>();

        public List<int> InactiveReports = new List<int>();

        public void Scan(string IP, int startPort, int endPort)

        {

            Socket Sock = null;

            for (int Port = startPort; Port <= endPort; Port++)

            {

                try

                {

                    Sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

                    Sock.Connect(IP, Port);

                    ActivePorts.Add(Port);

                }

                catch (SocketException ex)

                {

                    InactiveReports.Add(Port);

                }

                finally

                {

                    if (Sock!=null)

                    {

                        if (Sock.Connected)

                            Sock.Disconnect(false);

                        Sock.Close();

                    }

                }

            }

        }

    }

Converting URLs Into Links With Regex

public static string WithActiveLinks(this string s)
{
  //Finds URLs with no protocol
  var urlregex = 

new Regex(@"\b\({0,1}(?<url>(www|ftp)\.[^ ,""\s<)]*)\b", 
    RegexOptions.IgnoreCase | RegexOptions.Compiled);
  //Finds URLs with a protocol
  var httpurlregex = 

new Regex(@"\b\({0,1}(?<url>[^>]

(http://www\.|http://|https://|ftp://)[^,""\s<)]*)\b", 
    RegexOptions.IgnoreCase | RegexOptions.Compiled);
  //Finds email addresses
  var emailregex = 

new Regex(@"\b(?<mail>[a-zA-Z_0-9.-]+\@[a-zA-Z_0-9.-]+\.\w+)\b", 
    RegexOptions.IgnoreCase | RegexOptions.Compiled);
  s = urlregex.Replace

(s, " <a href=\"http://${url}\" target=\"_blank\">${url}</a>");
  s = httpurlregex.Replace

(s, " <a href=\"${url}\" target=\"_blank\">${url}</a>");
  s = emailregex.Replace

  (s, "<a href=\"mailto:${mail}\">${mail}</a>");
  return s;
}

JavaScript Methods Samples

Dropdownlist ten dizin ya da değer alma method örneği;

function getValues(){
var dd = document.getElementById('dropdown');
theindex = dd.options[dd.selectedIndex].value;
thevalue = dd.options[dd.selectedIndex].text;
var span = document.getElementById('span1');
span.innerHTML = '  Selected Index: ' + theindex + 
 ', Selected Value: ' + thevalue
}

Seçilen değerde hangisi işaretli hangisi işaretsiz onu algılayan method örneği;

function getchk(val){
var output = 'You clicked ' + val + ' Selected: ';
for(var i = 0; i < document.forms[0].check.length; i++){
 if(document.forms[0].check[i].checked)
 output += document.forms[0].check[i].value + ' ';
 }
document.getElementById('span2').innerHTML = output;
}
 
Textbox a girilen yazı ve rakam değerlerini gösteren method örneği;
 
function getText(){
var txt = document.getElementById('txt');
var output = txt.value;
var length = output.length;
document.getElementById('span3').innerHTML = 'Count: ' + length
 + ' Text: ' + output;
}