// JScript File

// JScript File
/*
 * Configurable variables. You may need to tweak these to be compatible with
 * the server-side, but the defaults work in most cases.
 */
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */

function makePasswordString(tid,hid)
{
    tObj = document.getElementById(tid);
    hObj = document.getElementById(hid);
    if(tObj.value == "")
    {
        alert("Enter Password!");
    }
    else
    {
        hObj.value = hex_sha1(tObj.value);
        //alert(hObj.value);
        tObj.value = "";
    }
    //alert("hi");
}

function randomPassword(length)
{
  chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
  pass = "";
  for(x=0;x<length;x++)
  {
    i = Math.floor(Math.random() * 62);
    pass += chars.charAt(i);
  }
  return pass;
}

function makePasswordStringFPwd(fname,lname, newpwd, hid)
{
    //uObj = document.getElementById(userid);
    fObj = document.getElementById(fname);
    lObj = document.getElementById(lname);
    nObj = document.getElementById(newpwd);
    
    var tObj = "";
    //tObj = fObj.value + "#$" + lObj.value;
    tObj = randomPassword(8);
    //alert(tObj);
    nObj.value = tObj;
    //alert(nObj.value);
    
    hObj = document.getElementById(hid);
    
     hObj.value = hex_sha1(tObj);
     //alert(hObj.value);
       // tObj.value = "";
    
    //alert("hi");
}

function SetPassword(tid,hid,ntid,ctid,nhid)
{
    //debugger
    tObj = document.getElementById(tid);
    hObj = document.getElementById(hid);
    ntObj = document.getElementById(ntid);
    ctObj = document.getElementById(ctid);
    nhObj = document.getElementById(nhid);
    
    if(tObj.value == "")
    {
        alert("Enter Password!");
    }
    else
    {
        hObj.value = hex_sha1(tObj.value);
        tObj.value = "";
    }
    
    if(ntObj.value == "" || ctObj.value == "")
    {
        if(ntObj.value == "")
            alert("Enter New Password!");
        else
            alert("Enter new password again to confirm!");
        nhObj.value = "invalid";
        ntObj.value = "";
        ctObj.value = "";
    }
    else if(ntObj.value != ctObj.value)
    {
        alert("New Password does not match with confirm password! Enter New Password again!");
        nhObj.value = "invalid";
        ntObj.value = "";
        ctObj.value = "";
    }
    else if(ntObj.value == ctObj.value)
    {
        nhObj.value = hex_sha1(ctObj.value);
        ntObj.value = "";
        ctObj.value = "";
    }
}

function hex_sha1(s)
{
    return binb2hex(core_sha1(str2binb(s),s.length * chrsz));
}

/*
 * Convert an array of big-endian words to a hex string.
 */
function binb2hex(binarray)
{
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i++)
  {
    str += hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xF) +
           hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8  )) & 0xF);
  }
  return str;
}

function core_sha1(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << (24 - len % 32);
  x[((len + 64 >> 9) << 4) + 15] = len;

  var w = Array(80);
  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;
  var e = -1009589776;

  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    var olde = e;

    for(var j = 0; j < 80; j++)
    {
      if(j < 16) w[j] = x[i + j];
      else w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
      var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
                       safe_add(safe_add(e, w[j]), sha1_kt(j)));
      e = d;
      d = c;
      c = rol(b, 30);
      b = a;
      a = t;
    }

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
    e = safe_add(e, olde);
  }
  return Array(a, b, c, d, e);
}

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}

/*
 * Perform the appropriate triplet combination function for the current
 * iteration
 */
function sha1_ft(t, b, c, d)
{
  if(t < 20) return (b & c) | ((~b) & d);
  if(t < 40) return b ^ c ^ d;
  if(t < 60) return (b & c) | (b & d) | (c & d);
  return b ^ c ^ d;
}

/*
 * Determine the appropriate additive constant for the current iteration
 */
function sha1_kt(t)
{
  return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 :
         (t < 60) ? -1894007588 : -899497514;
}

/*
 * Convert an 8-bit or 16-bit string to an array of big-endian words
 * In 8-bit function, characters >255 have their hi-byte silently ignored.
 */
function str2binb(str)
{
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (32 - chrsz - i%32);
  return bin;
}