feat: add browser push notifications

open-isle-cli/src/utils/push.js

@@ -0,0 +1,48 @@
+import { API_BASE_URL } from '../main'
+import { getToken } from './auth'
+
+function urlBase64ToUint8Array(base64String) {
+  const padding = '='.repeat((4 - base64String.length % 4) % 4)
+  const base64 = (base64String + padding).replace(/-/g, '+').replace(/_/g, '/')
+  const rawData = atob(base64)
+  const outputArray = new Uint8Array(rawData.length)
+  for (let i = 0; i < rawData.length; ++i) {
+    outputArray[i] = rawData.charCodeAt(i)
+  }
+  return outputArray
+}
+
+function arrayBufferToBase64(buffer) {
+  const bytes = new Uint8Array(buffer)
+  let binary = ''
+  for (const b of bytes) binary += String.fromCharCode(b)
+  return btoa(binary)
+}
+
+export async function registerPush() {
+  if (!('serviceWorker' in navigator) || !('PushManager' in window)) return
+  try {
+    const reg = await navigator.serviceWorker.register('/notifications-sw.js')
+    const res = await fetch(`${API_BASE_URL}/api/push/public-key`)
+    if (!res.ok) return
+    const { key } = await res.json()
+    const sub = await reg.pushManager.subscribe({
+      userVisibleOnly: true,
+      applicationServerKey: urlBase64ToUint8Array(key)
+    })
+    await fetch(`${API_BASE_URL}/api/push/subscribe`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        Authorization: `Bearer ${getToken()}`
+      },
+      body: JSON.stringify({
+        endpoint: sub.endpoint,
+        p256dh: arrayBufferToBase64(sub.getKey('p256dh')),
+        auth: arrayBufferToBase64(sub.getKey('auth'))
+      })
+    })
+  } catch (e) {
+    // ignore
+  }
+}