/**
* getVaptchaCode v1.0
* @author Jixun<https://jixun.moe/>
* @license BSD-3-Clause
*/
function getVaptchaCode(frameURL, container) {
return new Promise((resolve) => {
const {origin} = new URL(frameURL);
const id = 'id' + Date.now() + Math.random();
const frame = document.createElement('iframe');
frame.style.transition = 'opacity 1s 1s';
frame.style.opacity = 1;
const eventHandler = (event) => {
if (event.data.vaptcha === id) {
resolve(event.data.token);
window.removeEventListener('message', eventHandler);
frame.style.opacity = 0;
// Remove iframe after fadeout effects.
setTimeout(() => {
if (frame.parentNode) {
frame.parentNode.removeChild(frame);
}
}, 1000);
}
};
window.addEventListener('message', eventHandler);
frame.src = frameURL;
frame.onload = () => {
frame.contentWindow.postMessage({ vaptcha: 'init', id }, origin);
};
container.appendChild(frame);
});
}