/**
* @param {ArrayBuffer} buffer
*
* @return {string}
*/
const arrayBufferToBase64 = buffer => {
const bytes = new Uint8Array(buffer);
let string = '';
for (const byte of bytes) {
string += String.fromCharCode(byte);
}
return window.btoa(string);
};
/**
* @param {string} string
*
* @return {Uint8Array}
*/
const base64ToUint8Array = string => {
return Uint8Array.from(window.atob(string), char => char.charCodeAt(0));
};
/**
* @param {JQuery<HTMLElement>} $input
*
* @return {void}
*/
const handleCreation = $input => {
const $form = $input.parents('form');
$form.find('input[type=submit]').hide();
const creationOptionsJson = $input.attr('data-creation-options');
const creationOptions = JSON.parse(creationOptionsJson);
const publicKey = creationOptions;
publicKey.challenge = base64ToUint8Array(creationOptions.challenge);
publicKey.user.id = base64ToUint8Array(creationOptions.user.id);
if (creationOptions.excludeCredentials) {
const excludedCredentials = [];
for (let value of creationOptions.excludeCredentials) {
let excludedCredential = value;
excludedCredential.id = base64ToUint8Array(value.id);
excludedCredentials.push(excludedCredential);
}
publicKey.excludeCredentials = excludedCredentials;
}
// eslint-disable-next-line compat/compat
navigator.credentials.create({
publicKey: publicKey
}).then(credential => {
const credentialJson = JSON.stringify({
id: credential.id,
rawId: arrayBufferToBase64(credential.rawId),
type: credential.type,
response: {
clientDataJSON: arrayBufferToBase64(credential.response.clientDataJSON),
attestationObject: arrayBufferToBase64(credential.response.attestationObject)
}
});
$input.val(credentialJson);
$form.trigger('submit');
}).catch(error => Functions.ajaxShowMessage(error, false, 'error'));
};
/**
* @param {JQuery<HTMLElement>} $input
*
* @return {void}
*/
const handleRequest = $input => {
const $form = $input.parents('form');
$form.find('input[type=submit]').hide();
const requestOptionsJson = $input.attr('data-request-options');
const requestOptions = JSON.parse(requestOptionsJson);
const publicKey = requestOptions;
publicKey.challenge = base64ToUint8Array(requestOptions.challenge);
if (requestOptions.allowCredentials) {
const allowedCredentials = [];
for (let value of requestOptions.allowCredentials) {
let allowedCredential = value;
allowedCredential.id = base64ToUint8Array(value.id);
allowedCredentials.push(allowedCredential);
}
publicKey.allowCredentials = allowedCredentials;
}
// eslint-disable-next-line compat/compat
navigator.credentials.get({
publicKey: publicKey
}).then(credential => {
const credentialJson = JSON.stringify({
id: credential.id,
rawId: arrayBufferToBase64(credential.rawId),
type: credential.type,
response: {
authenticatorData: arrayBufferToBase64(credential.response.authenticatorData),
clientDataJSON: arrayBufferToBase64(credential.response.clientDataJSON),
signature: arrayBufferToBase64(credential.response.signature),
userHandle: arrayBufferToBase64(credential.response.userHandle)
}
});
$input.val(credentialJson);
$form.trigger('submit');
}).catch(error => Functions.ajaxShowMessage(error, false, 'error'));
};
AJAX.registerOnload('webauthn.js', function () {
if (!navigator.credentials || !navigator.credentials.create || !navigator.credentials.get || !window.PublicKeyCredential) {
Functions.ajaxShowMessage(Messages.webAuthnNotSupported, false, 'error');
return;
}
const $creationInput = $('#webauthn_creation_response');
if ($creationInput.length > 0) {
handleCreation($creationInput);
}
const $requestInput = $('#webauthn_request_response');
if ($requestInput.length > 0) {
handleRequest($requestInput);
}
});