obsureInfo.js

/* This code was created by Beau Kinstler

You may use it with no limitation, but it's provided with no warranty or liablilty for it's use. 

Purpose: add some tools for obscuring information. If used on the client side,
this will not secure the information unless the client device has protections on it.
For instance, a kiosk where the user has no access to deve tools of a browswer.

Version notes:

0.0.1: This has a very specifc purpose in my work, but perhaps could be adapted 
for other work. 
 */


function obscurePhone(phone){
  lenOfPhone = phone.length
  cleanNumber = cleanNumber(phone)
  switch (cleanNumber.length){
    case 7:
      return "***-" + phone.slice(3);
    case 10:
      return "(" + cleanNumber.slice(0,3) + ")***-" + cleanNumber.slice(6);
    default:
      cut = phone.length-4
      return obscureString(phone.slice(0,cut),0) + phone.slice(cut);
  } 
}

function cleanNumber(phone){
  number = ''
  for( x in phone){
    digit = parseInt(phone[x]);
    if (!(isNaN(digit))){
      number += phone[x];
    }
  }
  return number
}
  
function obscureEmail(email){
  atSymbol = email.indexOf("@");
  // make sure it's pretty much a valid email address
  // there's only one @, there a dot after the @, and there is a @
  if(atSymbol !== email.lastIndexOf("@") && email.lastIndexOf('.') > atSymbol && atSymbol != -1 ){
     return email;
  }
  
  emailName = email.slice(0,atSymbol);
  emailDomain = email.slice(atSymbol);
  
  return obscureString(emailName,2) + emailDomain;
  
}

function obscureString(string, num){
  if( num < string.length ){
    obscuredString = ''
	firstPart = string.slice(0,num);
	secondPart = "";
    for( i = 0; i < string.slice(num).length; i++ ){
      secondPart += "*";
    }
	obscuredString = firstPart + secondPart;
    return obscuredString;
  }
  else{
    return string; 
  }
}

function obscureFirstWordInMultiWordString(string){
	streetNumberIndex = string.indexOf(" ");
	streetNumber = string.slice(0,streetNumberIndex);
	restOfAddress = string.slice(streetNumberIndex);
	streetNumber = obscureString(streetNumber,0);
	obscuredAddress = streetNumber + restOfAddress;
	return obscuredAddress;
}