cipher-museum/embed.html at main · systemslibrarian/cipher-museum · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Cipher Demo — The Cipher Museum</title>
  <meta name="description" content="Embeddable interactive cipher demo from The Cipher Museum.">
  <meta name="robots" content="noindex">
  <link rel="icon" href="favicon.svg" type="image/svg+xml">
  <meta name="theme-color" content="#0a0a0f">
  <link rel="stylesheet" href="css/museum.css">
  <style>
    body{padding:.75rem;min-height:0}
    .embed-header{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:.6rem}
    .embed-header h1{font-size:.72rem;font-family:var(--fm);letter-spacing:.14em;text-transform:uppercase;color:var(--tx3);margin:0;font-weight:400}
    .embed-credit{font-family:var(--fm);font-size:.68rem;color:var(--gold);text-decoration:none;white-space:nowrap}
    .embed-credit:hover{text-decoration:underline}
    .embed-error{border:1px dashed var(--s5);border-radius:var(--rl);padding:1.5rem;text-align:center;color:var(--tx3);font-family:var(--fm);font-size:.85rem}
  </style>
</head>
<body>
<a class="skip-link" href="#main-content">Skip to main content</a>
<main id="main-content">
  <div class="embed-header">
    <h1 id="embed-title">Interactive Cipher Demo</h1>
    <a class="embed-credit" href="https://ciphermuseum.com/" target="_blank" rel="noopener">The Cipher Museum ↗</a>
  </div>
  <div class="demo-section" id="embed-demo"></div>
</main>
<script>
  // Chrome-less embeddable demo: /embed.html?cipher=caesar
  // The cipher name is validated against a strict pattern, then handed to the
  // same demo-loader that renders exhibit-page demos.
  (function () {
    'use strict';
    var cipher = new URLSearchParams(location.search).get('cipher') || '';
    var valid = /^[A-Za-z][A-Za-z0-9]{0,39}$/.test(cipher);
    var el = document.getElementById('embed-demo');
    if (valid) {
      el.setAttribute('data-cipher', cipher);
      document.getElementById('embed-title').textContent = 'Interactive Demo — ' + cipher;
      document.title = cipher + ' Demo — The Cipher Museum';
    } else {
      el.innerHTML = '<p class="embed-error">No cipher specified. Use embed.html?cipher=caesar (or vigenere, playfair, railFence…)</p>';
    }
    // If the loader doesn't recognise the cipher, replace the spinner text.
    window.addEventListener('load', function () {
      setTimeout(function () {
        if (el.hasAttribute('data-cipher') && !el.querySelector('input, select, textarea, button')) {
          el.innerHTML = '<p class="embed-error">Unknown cipher "' + el.getAttribute('data-cipher').replace(/[^A-Za-z0-9]/g, '') + '". Check the demo name on its exhibit page.</p>';
        }
      }, 400);
    });
  })();
</script>
<script src="js/ciphers/all-engines.min.js"></script>
<script src="js/demo-loader.min.js"></script>
</body>
</html>