teleport/lib/auth/webauthn/httpserver/index.html

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <title>WebAuthn Playground</title>
</head>

<body>
<form>
  <p>Login and Registration</p>

  <label for="user">User:</label>
  <input type="text" id="user" name="user"/>
  <br/>

  <label for="pass">Password:</label>
  <input type="password" id="pass" name="pass"/>
  <br/>
</form>
<form>
  <p>Registration</p>

  <label for="devName">Device name:</label>
  <input type="text" id="devName" name="devName"/>
  <br/>

  <label for="totpCode">OTP code:</label>
  <input type="text" id="totpCode" name="totpCode"/>
  <br/>
</form>
<button onclick="login()">Login</button>
<button onclick="register()">Register</button>
</body>

<script>
  // URLBase64 to ArrayBuffer
  function bufferDecode(value) {
    return Uint8Array.from(atob(value), c => c.charCodeAt(0));
  }

  // ArrayBuffer to URLBase64
  function bufferEncode(value) {
    return btoa(String.fromCharCode.apply(null, new Uint8Array(value)))
      .replace(/\+/g, "-")
      .replace(/\//g, "_")
      .replace(/=/g, "");
  }

  function register() {
    const user = document.getElementById("user").value;
    const pass = document.getElementById("pass").value;
    const devName = document.getElementById("devName").value;
    const totpCode = document.getElementById("totpCode").value;

    if (user === "" || pass === "") {
      alert("user and password required");
      return;
    }
    if (devName === "" || totpCode === "") {
      alert("device information required");
      return;
    }

    const body = JSON.stringify({
      "user": user,
      "pass": pass,
      "dev_name": devName,
      "totp_code": totpCode,
    })
    return fetch("/register/1", {
      method: "POST",
      headers: {"Content-Type": "application/json"},
      body: body
    })
      .then(res => {
        if (res.status === 200) {
          return res;
        }
        throw new Error(res.statusText);
      })
      .then(res => res.json())
      .then(res => {
        res.publicKey.challenge = bufferDecode(res.publicKey.challenge);
        res.publicKey.user.id = bufferDecode(res.publicKey.user.id);
        if (res.publicKey.excludeCredentials) {
          res.publicKey.excludeCredentials.forEach(function (x) {
            x.id = bufferDecode(x.id);
          })
        }
        console.log("CredentialCreation", res);
        return res;
      })
      .then(res => navigator.credentials.create({publicKey: res.publicKey}))
      .then(credential => {
        const body = JSON.stringify({
          id: credential.id,
          rawId: bufferEncode(credential.rawId),
          type: credential.type,
          response: {
            attestationObject: bufferEncode(credential.response.attestationObject),
            clientDataJSON: bufferEncode(credential.response.clientDataJSON),
          },
        });
        console.log("CredentialCreationResponse", body);
        return fetch("/register/2", {
          method: "POST",
          headers: {"Content-Type": "application/json"},
          body: body,
        })
      })
      .then(res => {
        if (res.status === 200) {
          alert("registration successful");
        } else {
          alert("registration failed");
        }
      });
  }

  function login() {
    const user = document.getElementById("user").value;
    const pass = document.getElementById("pass").value;

    if (user === "" || pass === "") {
      alert("user and password required");
      return;
    }

    const body = JSON.stringify({
      "user": user,
      "pass": pass,
    })
    return fetch("/login/1", {
      method: "POST",
      headers: {"Content-Type": "application/json"},
      body: body
    })
      .then(res => {
        if (res.status === 200) {
          return res;
        }
        throw new Error(res.statusText);
      })
      .then(res => res.json())
      .then(res => {
        res.publicKey.challenge = bufferDecode(res.publicKey.challenge);
        res.publicKey.allowCredentials.forEach(function (x) {
          x.id = bufferDecode(x.id);
        });
        console.log("CredentialAssertion", res);
        return res;
      })
      .then(res => navigator.credentials.get({publicKey: res.publicKey}))
      .then(credential => {
        const body = JSON.stringify({
          user: user,
          id: credential.id,
          rawId: bufferEncode(credential.rawId),
          type: credential.type,
          response: {
            authenticatorData: bufferEncode(credential.response.authenticatorData),
            clientDataJSON: bufferEncode(credential.response.clientDataJSON),
            signature: bufferEncode(credential.response.signature),
            userHandle: bufferEncode(credential.response.userHandle),
          },
        });
        console.log("CredentialAssertionResponse", body);
        return fetch("/login/2", {
          method: "POST",
          headers: {"Content-Type": "application/json"},
          body: body,
        });
      })
      .then(res => {
        if (res.status === 200) {
          alert("login successful");
        } else {
          alert("login failed");
        }
      });
  }

  // check whether current browser supports WebAuthn
  if (!window.PublicKeyCredential) {
    alert("Error: this browser does not support WebAuthn");
  }
</script>
</html>