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enigma.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Enigma</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="enigma.js"></script>
<link rel="stylesheet" href="main.css">
<link href='https://fonts.googleapis.com/css?family=Alegreya+Sans:300' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Cutive+Mono' rel='stylesheet' type='text/css'>
</head>
<body>
<h1>Enigma Simulator</h1>
<div class="enigma-section">
<div class="input-section">
<input class="input-text" id="enigma-input" type="text" placeholder="Input">
</div>
<div class="output-section">
<input class="output-text" id="enigma-output" type="text" placeholder="Output" readonly>
</div>
</div>
<div class="buttons-section">
<button id="settings-section-btn">Show Settings</button>
</div>
<div class="settings" id="settings-section">
<div class="settings-content">
<div class="settings-section">
<h2>Rotors settings</h2>
<div class="settings-subsection">
<label><a href="https://en.wikipedia.org/wiki/Enigma_machine#Rotors">Rotor types (Walzenlage)</a></label>
<select class="rotor-type-settings" id="rotor-type-left">
<option value="I" selected>I</option>
<option value="II">II</option>
<option value="III">III</option>
<option value="IV">IV</option>
<option value="V">V</option>
</select>
<select class="rotor-type-settings" id="rotor-type-middle">
<option value="I">I</option>
<option value="II" selected>II</option>
<option value="III">III</option>
<option value="IV">IV</option>
<option value="V">V</option>
</select>
<select class="rotor-type-settings" id="rotor-type-right">
<option value="I">I</option>
<option value="II">II</option>
<option value="III" selected>III</option>
<option value="IV">IV</option>
<option value="V">V</option>
</select>
</div>
<div class="settings-subsection">
<label><a href="https://en.wikipedia.org/wiki/Enigma_rotor_details#Rotor_offset">Ground settings (Grundstellung)</a></label>
<input class="rotor-settings" id="rotor-left-pos" type="text" value="A">
<input class="rotor-settings" id="rotor-middle-pos" type="text" value="A">
<input class="rotor-settings" id="rotor-right-pos" type="text" value="A">
</div>
<div class="settings-subsection">
<label><a href="https://en.wikipedia.org/wiki/Enigma_rotor_details#Ring_setting">Ring settings (Ringstellung)</a></label>
<input class="rotor-settings" id="ring-left-pos" type="text" value="A">
<input class="rotor-settings" id="ring-middle-pos" type="text" value="A">
<input class="rotor-settings" id="ring-right-pos" type="text" value="A">
</div>
</div>
<div class="settings-section">
<h2>Reflector settings</h2>
<div class="settings-subsection">
<label><a href="https://en.wikipedia.org/wiki/Enigma_machine#Reflector">Reflector type (Umkehrwalze)</a></label>
<select class="reflector-settings" id="reflector-type">
<option value="B">B</option>
<option value="C">C</option>
</select>
</div>
</div>
<div class="settings-section">
<h2>Plugboard settings</h2>
<div class="settings-subsection">
<label><a href="https://en.wikipedia.org/wiki/Enigma_machine#Plugboard">Plugboard connections (Steckerbrett)</a></label>
<table class="plugboard-settings">
<tr>
<td>
<label for="plugboard-A">A</label>
<input class="plugboard-letter-settings" id="plugboard-letter-A" type="text">
</td>
<td>
<label for="plugboard-B">B</label>
<input class="plugboard-letter-settings" id="plugboard-letter-B" type="text">
</td>
<td>
<label for="plugboard-C">C</label>
<input class="plugboard-letter-settings" id="plugboard-letter-C" type="text">
</td>
<td>
<label for="plugboard-D">D</label>
<input class="plugboard-letter-settings" id="plugboard-letter-D" type="text">
</td>
<td>
<label for="plugboard-E">E</label>
<input class="plugboard-letter-settings" id="plugboard-letter-E" type="text">
</td>
<td>
<label for="plugboard-F">F</label>
<input class="plugboard-letter-settings" id="plugboard-letter-F" type="text">
</td>
<td>
<label for="plugboard-G">G</label>
<input class="plugboard-letter-settings" id="plugboard-letter-G" type="text">
</td>
<td>
<label for="plugboard-H">H</label>
<input class="plugboard-letter-settings" id="plugboard-letter-H" type="text">
</td>
<td>
<label for="plugboard-I">I</label>
<input class="plugboard-letter-settings" id="plugboard-letter-I" type="text">
</td>
<td>
<label for="plugboard-J">J</label>
<input class="plugboard-letter-settings" id="plugboard-letter-J" type="text">
</td>
<td>
<label for="plugboard-K">K</label>
<input class="plugboard-letter-settings" id="plugboard-letter-K" type="text">
</td>
<td>
<label for="plugboard-L">L</label>
<input class="plugboard-letter-settings" id="plugboard-letter-L" type="text">
</td>
<td>
<label for="plugboard-M">M</label>
<input class="plugboard-letter-settings" id="plugboard-letter-M" type="text">
</td>
</tr>
<tr>
<td>
<label for="plugboard-N">N</label>
<input class="plugboard-letter-settings" id="plugboard-letter-N" type="text">
</td>
<td>
<label for="plugboard-O">O</label>
<input class="plugboard-letter-settings" id="plugboard-letter-O" type="text">
</td>
<td>
<label for="plugboard-P">P</label>
<input class="plugboard-letter-settings" id="plugboard-letter-P" type="text">
</td>
<td>
<label for="plugboard-Q">Q</label>
<input class="plugboard-letter-settings" id="plugboard-letter-Q" type="text">
</td>
<td>
<label for="plugboard-R">R</label>
<input class="plugboard-letter-settings" id="plugboard-letter-R" type="text">
</td>
<td>
<label for="plugboard-S">S</label>
<input class="plugboard-letter-settings" id="plugboard-letter-S" type="text">
</td>
<td>
<label for="plugboard-T">T</label>
<input class="plugboard-letter-settings" id="plugboard-letter-T" type="text">
</td>
<td>
<label for="plugboard-U">U</label>
<input class="plugboard-letter-settings" id="plugboard-letter-U" type="text">
</td>
<td>
<label for="plugboard-V">V</label>
<input class="plugboard-letter-settings" id="plugboard-letter-V" type="text">
</td>
<td>
<label for="plugboard-W">W</label>
<input class="plugboard-letter-settings" id="plugboard-letter-W" type="text">
</td>
<td>
<label for="plugboard-X">X</label>
<input class="plugboard-letter-settings" id="plugboard-letter-X" type="text">
</td>
<td>
<label for="plugboard-Y">Y</label>
<input class="plugboard-letter-settings" id="plugboard-letter-Y" type="text">
</td>
<td>
<label for="plugboard-Z">Z</label>
<input class="plugboard-letter-settings" id="plugboard-letter-Z" type="text">
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="settings-content">
<div class="settings-section">
<h2>Help</h2>
<div class="settings-subsection">
<p>
<a href="https://www.youtube.com/watch?v=mcX7iO_XCFA">The inner workings of an Enigma machine</a><br>
<a href="https://www.theguardian.com/technology/2014/nov/14/how-did-enigma-machine-work-imitation-game">How did the Enigma machine work?</a>
</p>
</div>
</div>
</div>
</div>
<script type="text/javascript">
$(function() {
var isValidInput = function(input) {
return /^[a-zA-Z]*$/g.test(input);
};
var isAlphabeticChar = function(input) {
return /^[a-zA-Z]$/g.test(input);
};
var isDifferentChar = function(input, current) {
return (input !== current);
};
var isValidPlugboardConfig = function(input, current) {
return (isAlphabeticChar(input)
&& isDifferentChar(input, current));
};
var getPlugboardConfig = function() {
var pairs = $('.plugboard-letter-settings').map(function() {
thisLetter = $(this).attr('id').slice(-1);
otherLetter = $(this).val().toUpperCase();
if (otherLetter)
return (thisLetter + otherLetter);
}).get();
return pairs;
};
var getRotorInstance = function(pos) {
var type = $('#rotor-type-' + pos).val();
if (type === 'I')
rotor = new RotorI();
else if (type === 'II')
rotor = new RotorII();
else if (type === 'III')
rotor = new RotorIII();
else if (type === 'IV')
rotor = new RotorIV();
else if (type === 'V')
rotor = new RotorV();
return rotor;
}
var getReflectorInstance = function() {
var reflector;
if ($('#reflector-type').val() === 'B')
reflector = new ReflectorB();
else if ($('#reflector-type').val() === 'C')
reflector = new ReflectorC();
return reflector;
}
var encode = function(input) {
getPlugboardConfig();
var machine = new Machine();
var plugboard = new Plugboard();
plugboard.addPlugs.apply(plugboard, getPlugboardConfig());
machine.setPlugboard(plugboard);
var rightRotor = getRotorInstance('right');
rightRotor.setInnerPosition($('#ring-right-pos').val());
rightRotor.setInitialPosition($('#rotor-right-pos').val());
var middleRotor = getRotorInstance('middle');
middleRotor.setInnerPosition($('#ring-middle-pos').val());
middleRotor.setInitialPosition($('#rotor-middle-pos').val());
var leftRotor = getRotorInstance('left');
leftRotor.setInnerPosition($('#ring-left-pos').val());
leftRotor.setInitialPosition($('#rotor-left-pos').val());
machine.setRotors(leftRotor, middleRotor, rightRotor);
var reflector = getReflectorInstance();
machine.setReflector(reflector);
return machine.encodeLetters(input);
};
var updateOutput = function() {
$('#enigma-output').val(encode($('#enigma-input').val()));
};
$('#enigma-input').keyup(function(e) {
input = $(this).val();
validInput = input.replace(/([^a-zA-Z]+)/gi, '').toUpperCase();
$(this).val(validInput);
updateOutput();
});
$('.rotor-settings').keydown(function(e) {
e.preventDefault();
letter = String.fromCharCode(e.keyCode).toUpperCase();
if (isAlphabeticChar(letter))
$(this).val(letter);
updateOutput();
});
$('.plugboard-letter-settings').keydown(function(e) {
e.preventDefault();
thisLetter = $(this).attr('id').slice(-1);
otherLetter = String.fromCharCode(e.keyCode).toUpperCase();
previousLetter = $(this).attr('previousLetter');
// Erase any other letter that is currently connected to the
// letter we want right now
if (isAlphabeticChar(otherLetter)) {
currentOtherLetter = $('#plugboard-letter-' + otherLetter).val();
if (currentOtherLetter)
$('#plugboard-letter-' + currentOtherLetter).val('');
}
// Erasing the letter that we were previously connected to
if (previousLetter)
$('#plugboard-letter-' + previousLetter).val('');
if (isValidPlugboardConfig(otherLetter, thisLetter)) {
$(this).val(otherLetter);
$(this).attr('previousLetter', otherLetter);
$('#plugboard-letter-' + otherLetter).val(thisLetter);
$('#plugboard-letter-' + otherLetter).attr('previousLetter', thisLetter);
} else {
$(this).attr('previousLetter', '');
$(this).val('');
}
updateOutput();
});
$('select[id^=rotor-type-]').change(function() {
// Get a list of the ids that are selected
var selected = [];
$('[id^=rotor-type-] option:selected').each(function() {
selected.push($(this).val());
});
// Walk through every select option and enable if not
// in the list and not already selected
$('[id^=rotor-type-] option').each(function()
{
if (!$(this).is(':selected'))
{
var shouldDisable = false;
for (var i = 0; i < selected.length; i++)
{
if (selected[i] == $(this).val())
shouldDisable = true;
}
$(this).css('text-decoration', '');
$(this).removeAttr('disabled', 'disabled');
if (shouldDisable) {
$(this).css('text-decoration', 'line-through');
$(this).attr('disabled', 'disabled');
}
}
});
updateOutput();
});
$('#settings-section-btn').click(function() {
$('#settings-section').toggle();
if ($(this).text() == 'Show Settings')
$(this).text('Hide Settings');
else
$(this).text('Show Settings');
});
$('.reflector-settings').change(function() {
updateOutput();
});
});
</script>
<footer>
<p>Developed by <a href="http://www.matheusportela.com">Matheus V. Portela</a></p>
</footer>
<a href="https://github.com/matheusportela/enigma-machine/">
<img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/38ef81f8aca64bb9a64448d0d70f1308ef5341ab/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png">
</a>
</body>
</html>