cache scaled images, remove unused code

src/sw.js

@@ -1,5 +1,3 @@
-import SEA from 'gun/sea';
-import localforage from 'localforage';
 import { getFiles, setupPrecaching, setupRouting } from 'preact-cli/sw';
 import { BackgroundSyncPlugin } from 'workbox-background-sync';
 import { ExpirationPlugin } from 'workbox-expiration';
@@ -21,6 +19,20 @@ registerRoute(({ url }) => {
   return location.host.indexOf('localhost') !== 0 && url.origin === self.location.origin;
 }, new StaleWhileRevalidate());
 
+registerRoute(
+  ({ url }) => url.href.startsWith('https://proxy.irismessengers.wtf/insecure/rs:fill:'),
+  new CacheFirst({
+    cacheName: 'scaled-images',
+    plugins: [
+      new ExpirationPlugin({
+        maxEntries: 1000,
+        maxAgeSeconds: 7 * 24 * 60 * 60,
+        purgeOnQuotaError: true,
+      }),
+    ],
+  }),
+);
+
 // cache remote assets with limit and expiration time
 registerRoute(
   ({ url }) => url.origin !== self.location.origin,
@@ -40,83 +52,3 @@ setupRouting();
 
 const urlsToCache = getFiles();
 setupPrecaching(urlsToCache);
-
-const urlToOpen = new URL('/', self.location.origin).href;
-
-async function getSavedKey() {
-  try {
-    self.irisKey = await localforage.getItem('swIrisKey');
-  } catch (err) {
-    console.error('error loading iris key', err);
-  }
-  return self.irisKey;
-}
-
-self.addEventListener('message', (msg) => {
-  //console.log('sw got postMessage from client', msg);
-  if (msg.data && msg.data.key) {
-    self.irisKey = msg.data.key;
-    localforage.setItem('swIrisKey', self.irisKey);
-  }
-});
-
-function getOpenClient(event) {
-  return new Promise((resolve) => {
-    event.waitUntil(
-      self.clients
-        .matchAll({
-          type: 'window',
-          includeUncontrolled: true,
-        })
-        .then((clientList) => {
-          for (let i = 0; i < clientList.length; i++) {
-            let client = clientList[i];
-            return resolve(client);
-          }
-          resolve(null);
-        }),
-    );
-  });
-}
-
-self.addEventListener('push', async (ev) => {
-  console.log('Got push', ev);
-  if (!self.irisKey) {
-    await getSavedKey();
-  }
-  const data = ev.data.json();
-  if (!data.title || !data.body) {
-    console.log('what?', data);
-  }
-  const client = await getOpenClient(ev);
-  const fromSelf = (data.from && data.from.pub) === self.irisKey.pub; // always allow notifs from self
-  if (!fromSelf && client && client.visibilityState === 'visible') return;
-  //console.log(self.irisKey, data.from, data.from.epub);
-  if (self.irisKey && data.from && data.from.epub && SEA) {
-    // TODO we should also do a signature check here
-    const secret = await SEA.secret(data.from.epub, self.irisKey);
-    data.title = await SEA.decrypt(data.title, secret);
-    data.body = await SEA.decrypt(data.body, secret);
-  }
-  if (data.title && data.title.indexOf('SEA{') === 0) {
-    data.title = '';
-    data.body = 'Encrypted message';
-  }
-  self.registration.showNotification(data.title || 'No title', {
-    body: data.body || 'No text',
-    icon: '/assets/img/icon128.png',
-  });
-});
-
-self.addEventListener('notificationclick', async (event) => {
-  // Android doesn't close the notification when you click on it
-  // See: http://crbug.com/463146
-  event.notification.close();
-
-  const client = await getOpenClient(event);
-  if (client) {
-    client.focus();
-  } else {
-    self.clients.openWindow && self.clients.openWindow(urlToOpen);
-  }
-});