CTF-V1.1/index.html at main · clustercoder/CTF-V1.1 · GitHub

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<!DOCTYPE html>
<html>
<head>
  <title>CTF Login</title>
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
  <h1>Login</h1>
  <form id="loginForm">
    <input type="text" name="username" placeholder="username"/>
    <button type="submit">Login</button>
  </form>
  <script>
    document.getElementById('loginForm').onsubmit = async (e) => {
      e.preventDefault();
      const username = e.target.username.value;
      const res = await fetch('/login', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ username })
      });
      const json = await res.json();
      if (json.ok) window.location = json.next;
    };
  </script>
</body>
</html>