Added in random-number-csprng, which required using Bluebird and Promisfying a *whole* bunch of code.

This is the fix to address Bug #7.
This commit is contained in:
Douglas Muth 2017-11-08 23:27:42 -05:00
parent b7f1adb8a2
commit f19dca83dd
2 changed files with 100 additions and 32 deletions

View file

@ -303,10 +303,7 @@ Feel free to reach out to me if you have any comments, suggestions, or bug repor
<!-- Include all compiled plugins (below), or include individual files as needed --> <!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="./main.js"></script> <script src="./dist/bundle.js"></script>
<script>
Diceware.go();
</script>
</body> </body>
</html> </html>

127
main.js
View file

@ -2,6 +2,14 @@
* Our main Javascript file. * Our main Javascript file.
*/ */
var Promise = require("bluebird");
var randomNumber = require("random-number-csprng");
//
// This "put everything in an object" approach is a holdover from
// before I started using webpack. Yay legacy code.
//
var Diceware = {}; var Diceware = {};
// //
@ -16,6 +24,7 @@ Diceware.num_dice_per_roll = 5;
*/ */
Diceware.i_can_has_good_crypto = function() { Diceware.i_can_has_good_crypto = function() {
//return(false); // Debugging
if (window.crypto && window.crypto.getRandomValues) { if (window.crypto && window.crypto.getRandomValues) {
return(true); return(true);
} }
@ -26,18 +35,28 @@ Diceware.i_can_has_good_crypto = function() {
/** /**
* Return a random integer between 1 and max. * Return a random integer between 0 and max, inclusive.
*/ */
Diceware.getRandomValue = function(max) { Diceware.getRandomValue = function(max) {
return new Promise(function(resolve, reject) {
if (max <= 0){ if (max <= 0){
return(NaN); resolve(NaN);
} }
if (Diceware.i_can_has_good_crypto()) { if (Diceware.i_can_has_good_crypto()) {
var a = new Uint32Array(1);
window.crypto.getRandomValues(a); Promise.try(function() {
retval = (a[0] % max); return randomNumber(0, max);
}).then(function(number) {
retval = number;
resolve(retval);
}).catch({code: "RandomGenerationError"}, function(err) {
console.log("randomNumber(): Something went wrong!");
});
} else { } else {
// //
@ -45,12 +64,11 @@ Diceware.getRandomValue = function(max) {
// been warned. // been warned.
// //
retval = Math.floor(Math.random() * max); retval = Math.floor(Math.random() * max);
resolve(retval);
} }
}); // End of Promise()
return(retval);
} // End of getRandomValue() } // End of getRandomValue()
@ -170,22 +188,28 @@ Diceware.getNumValuesFromNumDice = function(num_dice) {
* *
*/ */
Diceware.rollDice = function(num_dice) { Diceware.rollDice = function(num_dice) {
return new Promise(function(resolve, reject) {
var retval = {}; var retval = {};
var max = Diceware.getNumValuesFromNumDice(num_dice);
var max = Diceware.getNumValuesFromNumDice(num_dice); Promise.try(function() {
var random = Diceware.getRandomValue(max); return(Diceware.getRandomValue(max - 1));
var base6 = Diceware.getBase6(random, num_dice); }).then(function(random) {
var dice = Diceware.convertBase6ToDice(base6, num_dice); var base6 = Diceware.getBase6(random, num_dice);
var dice = Diceware.convertBase6ToDice(base6, num_dice);
retval.value = random; retval.value = random;
retval.roll = dice; retval.roll = dice;
return(retval); resolve(retval);
});
}); // End of Promise()
} // End of rollDice() } // End of rollDice()
@ -342,10 +366,9 @@ Diceware.is_mobile = function() {
/** /**
* Our handler for what to do when the "Roll Dice" button is clicked". * Do some preliminary work, such as clearing out results and scrolling.
* It generates the passphrase and updates the HTML.
*/ */
Diceware.rollDiceHandler = function(e) { Diceware.rollDiceHanlderPre = function() {
// //
// Clear out more space when mobile // Clear out more space when mobile
@ -373,23 +396,65 @@ Diceware.rollDiceHandler = function(e) {
// //
jQuery(".results").empty(); jQuery(".results").empty();
} // End of rollDiceHandlerPre()
/**
* Our handler for what to do when the "Roll Dice" button is clicked".
* It generates the passphrase and updates the HTML.
*/
Diceware.rollDiceHandler = function(e) {
Diceware.rollDiceHanlderPre();
// //
// Make our dice rolls // Make our dice rolls
// //
var num_dice = jQuery(".dice_button.active").html(); var num_dice = jQuery(".dice_button.active").html();
var num_passwords = Number(Math.pow(6, (Diceware.num_dice_per_roll * num_dice))); var num_passwords = Number(Math.pow(6, (Diceware.num_dice_per_roll * num_dice)));
var passphrase = new Array(); var passphrase = new Array();
var rolls = new Array(); var rolls = new Array();
for (var i=0; i<num_dice; i++) {
var roll = {}; //
roll.dice = Diceware.rollDice(Diceware.num_dice_per_roll); // Create an array of empty items, since this is the only way I can
roll.word = Diceware.get_word(wordlist, roll.dice.value); // figure out to do a loop in Bluebird at this time. Ugh.
rolls.push(roll); //
passphrase.push(roll.word); var items = [];
for (i=0; i<num_dice; i++) { items.push(null); }
} Promise.map(items, function(element) {
//
// Do our dice rolls all at once.
//
return(Diceware.rollDice(Diceware.num_dice_per_roll));
}).then(function(data) {
//
// Now that we have the results, get the word for each roll,
// save the roll, and push the word onto the passphrase.
//
data.forEach(function(row) {
var roll = {};
roll.dice = row;
roll.word = Diceware.get_word(wordlist, roll.dice.value);
rolls.push(roll);
passphrase.push(roll.word);
});
Diceware.rollDiceHanlderPost(rolls, passphrase, num_passwords);
});
} // End of rollDiceHandler()
/**
* Our post work, of displaying the results of our dice rolls.
*/
Diceware.rollDiceHanlderPost = function(rolls, passphrase, num_passwords) {
// //
// Populate our results by cloning the hidden base rows which // Populate our results by cloning the hidden base rows which
@ -457,7 +522,7 @@ Diceware.rollDiceHandler = function(e) {
}); });
} // End of rollDiceHandler() } // End of rollDiceHandlerPost()
/** /**
@ -585,3 +650,9 @@ Diceware.go = function() {
} // End of go() } // End of go()
//
// Run go() automatically, as that is the webpack way.
//
Diceware.go();