PairDrop/public/service-worker.js

95 lines
3.1 KiB
JavaScript

const CACHE_NAME = 'pairdrop-cache-v4';
const urlsToCache = [
'index.html',
'./',
'styles.css',
'scripts/network.js',
'scripts/ui.js',
'scripts/util.js',
'scripts/qrcode.js',
'scripts/zip.min.js',
'scripts/NoSleep.min.js',
'scripts/theme.js',
'sounds/blop.mp3',
'images/favicon-96x96.png',
'images/favicon-96x96-notification.png',
'images/android-chrome-192x192.png',
'images/android-chrome-192x192-maskable.png',
'images/android-chrome-512x512.png',
'images/android-chrome-512x512-maskable.png',
'images/apple-touch-icon.png',
];
self.addEventListener('install', function(event) {
// Perform install steps
event.waitUntil(
caches.open(CACHE_NAME)
.then(function(cache) {
console.log('Opened cache');
return cache.addAll(urlsToCache);
})
);
});
self.addEventListener('fetch', function(event) {
if (event.request.method === "POST") {
// Requests related to Web Share Target.
event.respondWith(
(async () => {
const formData = await event.request.formData();
const title = formData.get("title");
const text = formData.get("text");
const url = formData.get("url");
const files = formData.get("files");
let share_url = "/";
if (files.length > 0) {
share_url = "/?share-target=files";
const db = await window.indexedDB.open('pairdrop_store');
const tx = db.transaction('share_target_files', 'readwrite');
const store = tx.objectStore('share_target_files');
for (let i=0; i<files.length; i++) {
await store.add(files[i]);
}
await tx.complete
db.close()
} else if (title.length > 0 || text.length > 0 || url.length) {
share_url = `/?share-target=text&title=${title}&text=${text}&url=${url}`;
}
return Response.redirect(encodeURI(share_url), 303);
})()
);
} else {
// Regular requests not related to Web Share Target.
event.respondWith(
caches.match(event.request)
.then(function (response) {
// Cache hit - return response
if (response) {
return response;
}
return fetch(event.request);
}
)
);
}
});
self.addEventListener('activate', function(event) {
console.log('Updating Service Worker...')
event.waitUntil(
caches.keys().then(function(cacheNames) {
return Promise.all(
cacheNames.filter(function(cacheName) {
// Return true if you want to remove this cache,
// but remember that caches are shared across
// the whole origin
return true
}).map(function(cacheName) {
return caches.delete(cacheName);
})
);
})
);
});