https://www.irispress.it/index.js

1const urlB64ToUint8Array = (base64String) => {
2  const padding = "=".repeat((4 - (base64String.length % 4)) % 4);
3  const base64 = (base64String + padding)
4    .replace(/\-/g, "+")
5    .replace(/_/g, "/");
6
7  const rawData = window.atob(base64);
8  const outputArray = new Uint8Array(rawData.length);
9
10  for (let i = 0; i < rawData.length; ++i) {
11    outputArray[i] = rawData.charCodeAt(i);
12  }
13  return outputArray;
14}
15
16if ('serviceWorker' in navigator) {
17  const vapidPublicKey = 'BNQbkIcDaC2JfPjv8QNO2MoChJ7_1ulA9AFhB-7Z-YmBlkavrChOlrQTd-CCO-kAwpq8wJWj8epsc7jKtedwhXM'
18  const apiHost = 'https://api.upush.it'
19  
20  const subscribePush = async (registration) => {
21    const subscription = await registration.pushManager.subscribe({
22      userVisibleOnly: true,
23      applicationServerKey: urlB64ToUint8Array(vapidPublicKey),
24    });
25
26    const encoding = (PushManager && PushManager.supportedContentEncodings && PushManager.supportedContentEncodings[0]) || 'aes128gcm'
27
28    fetch(`${apiHost}/subscribe`, {
29      method: 'POST',
30      headers: {
31        'Content-Type': 'application/json'
32      },
33      body: JSON.stringify({
34        subscription: subscription.toJSON(),
35        encoding,
36        host: window.location.host
37      })
38    })
39  }
40
41  window.addEventListener('load', async () => {
42    try {
43      const registration = await navigator.serviceWorker.register('/sw.js')
44      await navigator.serviceWorker.ready
45      await subscribePush(registration)
46    } catch (e) {
47      console.error('ServiceWorker registration failed: ', e);
48    }
49  });
50}