Assignment 10

by Jeremy Boss

HTML

<input type="textbox" id="passIn" />
<input type="button" value="Add Password To List" onClick="passInClick();" />
<br/>
<br/>
<input type="textbox" id="passCheckIn"/>
<input type="button" value="Check For Password" onClick="passCheckClick();"/>
<div id="out"></div>
<div id="out2"></div>

JavaScript

var stored = new aList();

function aNode(val) {
  this.input = sha(val);
  this.next = null;
  this.last = null;
  return this;
}

function aList() {
  this.length = 0;
  this.head = null;
  this.tail = null;
}

aList.prototype.add = function(val) {
  var bNode = new aNode(val);
      if (this.head == null) {
      this.head = bNode;
      this.length = 1;
      return bNode;
  } 
      else if (this.tail == null) {
      this.tail = bNode;
      this.tail.last = this.head;
      this.head.next = this.tail;
      this.length = 2;
      return bNode;
  } 
      else {
      this.tail.next = bNode;
      bNode.last = this.tail;
      this.tail = bNode;
      this.length++;
      return bNode;
  }
}

var sha = function(z) {
  var q = 1;
  var r = 0;
  var s;
  var t;

  if (z) {
    q = 0;
    for (s = z.length - 1; s >= 0; s--) {
      t = z.charCodeAt(s);
      q = (q << 6 & 268435455) + t + (t << 14);
      r = q & 266338304;
      q = r !== 0 ? q ^ r >> 21 : q;
    }
  }
  return String(q);
}

aNode.prototype.toString = function() {
  return "Node: " + this.input + "<br/>";

}

aList.prototype.print = function() {
  var out = "";
  var bNode = this.head;

  while (bNode != null) {
    out += bNode.toString();
    bNode = bNode.next;
  }
  return out;
}

function passInClick() {
  var passLoc = document.getElementById("passIn").value;
  stored.add(passLoc);
  outList();
}

function outList() {
  document.getElementById("out").innerHTML = stored.print();
}

function passCheckClick(passLoc) {
  passLoc = document.getElementById("passCheckIn").value;
    var checkSha = sha(passLoc);
    var checkInd = stored.head;
  	var stringL = "";

  while (checkInd != null) {
		if (checkInd.input == checkSha){
    	stringL = "Password Found";
      document.getElementById("out2").innerHTML = stringL;
      return stringL;
    }
    checkInd = checkInd.next;
  }
  stringL = "Not Found";
  document.getElementById("out2").innerHTML = stringL;
  return stringL;
}