tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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setp12password.js (4034B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 "use strict";
      5 
      6 /**
      7 * @file Implements the functionality of setp12password.xhtml: a dialog that lets
      8 *       the user confirm the password to set on a PKCS #12 file.
      9 * @param {nsISupports} window.arguments.0
     10 *           Object to set the return values of calling the dialog on, queryable
     11 *           to the underlying type of SetP12PasswordReturnValues.
     12 */
     13 
     14 /**
     15 * @typedef SetP12PasswordReturnValues
     16 * @type {nsIWritablePropertyBag2}
     17 * @property {boolean} confirmedPassword
     18 *           Set to true if the user entered two matching passwords and
     19 *           confirmed the dialog.
     20 * @property {string} password
     21 *           The password the user entered. Undefined value if
     22 *           |confirmedPassword| is not true.
     23 */
     24 
     25 /**
     26 * onload() handler.
     27 */
     28 function onLoad() {
     29  // Ensure the first password textbox has focus.
     30  let pw1 = document.getElementById("pw1");
     31  pw1.focus();
     32  pw1.addEventListener("input", () => onPasswordInput(true));
     33  let pw2 = document.getElementById("pw2");
     34  pw2.addEventListener("input", () => onPasswordInput(false));
     35  document.addEventListener("dialogaccept", onDialogAccept);
     36  document.addEventListener("dialogcancel", onDialogCancel);
     37 }
     38 
     39 /**
     40 * ondialogaccept() handler.
     41 */
     42 function onDialogAccept() {
     43  let password = document.getElementById("pw1").value;
     44 
     45  let retVals = window.arguments[0].QueryInterface(Ci.nsIWritablePropertyBag2);
     46  retVals.setPropertyAsBool("confirmedPassword", true);
     47  retVals.setPropertyAsAString("password", password);
     48 }
     49 
     50 /**
     51 * ondialogcancel() handler.
     52 */
     53 function onDialogCancel() {
     54  let retVals = window.arguments[0].QueryInterface(Ci.nsIWritablePropertyBag2);
     55  retVals.setPropertyAsBool("confirmedPassword", false);
     56 }
     57 
     58 /**
     59 * Calculates the strength of the given password, suitable for use in updating
     60 * a progress bar that represents said strength.
     61 *
     62 * The strength of the password is calculated by checking the number of:
     63 *   - Characters
     64 *   - Numbers
     65 *   - Non-alphanumeric chars
     66 *   - Upper case characters
     67 *
     68 * @param {string} password
     69 *        The password to calculate the strength of.
     70 * @returns {number}
     71 *          The strength of the password in the range [0, 100].
     72 */
     73 function getPasswordStrength(password) {
     74  let lengthStrength = password.length;
     75  if (lengthStrength > 5) {
     76    lengthStrength = 5;
     77  }
     78 
     79  let nonNumericChars = password.replace(/[0-9]/g, "");
     80  let numericStrength = password.length - nonNumericChars.length;
     81  if (numericStrength > 3) {
     82    numericStrength = 3;
     83  }
     84 
     85  let nonSymbolChars = password.replace(/\W/g, "");
     86  let symbolStrength = password.length - nonSymbolChars.length;
     87  if (symbolStrength > 3) {
     88    symbolStrength = 3;
     89  }
     90 
     91  let nonUpperAlphaChars = password.replace(/[A-Z]/g, "");
     92  let upperAlphaStrength = password.length - nonUpperAlphaChars.length;
     93  if (upperAlphaStrength > 3) {
     94    upperAlphaStrength = 3;
     95  }
     96 
     97  let strength =
     98    lengthStrength * 10 -
     99    20 +
    100    numericStrength * 10 +
    101    symbolStrength * 15 +
    102    upperAlphaStrength * 10;
    103  if (strength < 0) {
    104    strength = 0;
    105  }
    106  if (strength > 100) {
    107    strength = 100;
    108  }
    109 
    110  return strength;
    111 }
    112 
    113 /**
    114 * oninput() handler for both password textboxes.
    115 *
    116 * @param {boolean} recalculatePasswordStrength
    117 *                  Whether to recalculate the strength of the first password.
    118 */
    119 function onPasswordInput(recalculatePasswordStrength) {
    120  let pw1 = document.getElementById("pw1").value;
    121 
    122  if (recalculatePasswordStrength) {
    123    document.getElementById("pwmeter").value = getPasswordStrength(pw1);
    124  }
    125 
    126  // Disable the accept button if the two passwords don't match, and enable it
    127  // if the passwords do match.
    128  let pw2 = document.getElementById("pw2").value;
    129  document.getElementById("setp12password").getButton("accept").disabled =
    130    pw1 != pw2;
    131 }
    132 
    133 window.addEventListener("load", () => onLoad());