WebAuthn registration completed

This commit is contained in:
Pinga 2023-11-22 17:22:52 +02:00
parent 3684970ff9
commit 810d0cc7d1
6 changed files with 166 additions and 80 deletions

View file

@ -151,13 +151,25 @@
<table class="table table-striped">
<thead>
<tr>
<th>Device Name</th>
<th>Device/Browser Info</th>
<th>Registration Date</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<!-- Dynamically populated rows go here -->
{% for device in weba %}
<tr>
<td>{{ device.user_agent }}</td>
<td>{{ device.created_at }}</td>
<td>
<a href="/path/to/action?deviceId={{ device.id }}">Edit</a>
</td>
</tr>
{% else %}
<tr>
<td colspan="3">No devices found.</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
@ -188,56 +200,102 @@ document.addEventListener('DOMContentLoaded', function() {
connectButton.addEventListener('click', async function() {
try {
// Step 1: Get the registration challenge from the server
const response = await fetch('/webauthn/register/challenge');
const data = await response.json();
// Decode the challenge and user ID from Base64 to Uint8Array
const challenge = Uint8Array.from(atob(data.publicKey.challenge), c => c.charCodeAt(0));
const userId = Uint8Array.from(atob(data.publicKey.user.id), c => c.charCodeAt(0));
// check browser support
if (!window.fetch || !navigator.credentials || !navigator.credentials.create) {
throw new Error('Browser not supported.');
}
// Modify the data object to use the decoded challenge and user ID
data.publicKey.challenge = challenge;
data.publicKey.user.id = userId;
// get create args
let rep = await window.fetch('/webauthn/register/challenge', {method:'GET', cache:'no-cache'});
const createArgs = await rep.json();
// Step 2: Call WebAuthn API to create credentials
const credentials = await navigator.credentials.create(data);
// error handling
if (createArgs.success === false) {
throw new Error(createArgs.msg || 'unknown error occured');
}
// Prepare credentials response
const publicKeyCredential = {
id: credentials.id,
rawId: btoa(String.fromCharCode.apply(null, new Uint8Array(credentials.rawId))),
type: credentials.type,
response: {
attestationObject: btoa(String.fromCharCode.apply(null, new Uint8Array(credentials.response.attestationObject))),
clientDataJSON: btoa(String.fromCharCode.apply(null, new Uint8Array(credentials.response.clientDataJSON)))
},
// Include CSRF tokens in the payload
csrf_name: '{{ csrf_name }}',
csrf_value: '{{ csrf_value }}'
// replace binary base64 data with ArrayBuffer. a other way to do this
// is the reviver function of JSON.parse()
recursiveBase64StrToArrayBuffer(createArgs);
// create credentials
const cred = await navigator.credentials.create(createArgs);
// create object
const authenticatorAttestationResponse = {
transports: cred.response.getTransports ? cred.response.getTransports() : null,
clientDataJSON: cred.response.clientDataJSON ? arrayBufferToBase64(cred.response.clientDataJSON) : null,
attestationObject: cred.response.attestationObject ? arrayBufferToBase64(cred.response.attestationObject) : null
};
// Step 3: Send the credentials back to the server for verification
const verificationResponse = await fetch('/webauthn/register/verify', {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(publicKeyCredential)
// check auth on server side
rep = await window.fetch('/webauthn/register/verify', {
method : 'POST',
body : JSON.stringify(authenticatorAttestationResponse),
cache : 'no-cache'
});
const authenticatorAttestationServerResponse = await rep.json();
if(verificationResponse.ok) {
alert('Registration successful!');
window.location.reload();
// prompt server response
if (authenticatorAttestationServerResponse.success) {
//location.reload();
window.alert(authenticatorAttestationServerResponse.msg || 'registration success');
} else {
const errorData = await verificationResponse.json();
alert('Registration failed: ' + (errorData.error || 'Unknown error'));
throw new Error(authenticatorAttestationServerResponse.msg);
}
} catch (error) {
console.error('Error during WebAuthn registration:', error);
alert('Error during registration: ' + error.message);
} catch (err) {
//location.reload();
window.alert(err.message || 'unknown error occured');
}
});
/**
* convert RFC 1342-like base64 strings to array buffer
* @param {mixed} obj
* @returns {undefined}
*/
function recursiveBase64StrToArrayBuffer(obj) {
let prefix = '=?BINARY?B?';
let suffix = '?=';
if (typeof obj === 'object') {
for (let key in obj) {
if (typeof obj[key] === 'string') {
let str = obj[key];
if (str.substring(0, prefix.length) === prefix && str.substring(str.length - suffix.length) === suffix) {
str = str.substring(prefix.length, str.length - suffix.length);
let binary_string = window.atob(str);
let len = binary_string.length;
let bytes = new Uint8Array(len);
for (let i = 0; i < len; i++) {
bytes[i] = binary_string.charCodeAt(i);
}
obj[key] = bytes.buffer;
}
} else {
recursiveBase64StrToArrayBuffer(obj[key]);
}
}
}
}
/**
* Convert a ArrayBuffer to Base64
* @param {ArrayBuffer} buffer
* @returns {String}
*/
function arrayBufferToBase64(buffer) {
let binary = '';
let bytes = new Uint8Array(buffer);
let len = bytes.byteLength;
for (let i = 0; i < len; i++) {
binary += String.fromCharCode( bytes[ i ] );
}
return window.btoa(binary);
}
});
</script>
{% endblock %}