309 lines
9.4 KiB
JavaScript
309 lines
9.4 KiB
JavaScript
import {
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assets as __assets__,
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shell as __shell__,
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routes as __routes__
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} from '../__sapper__/service-worker.js'
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import { get, post } from './routes/_utils/ajax'
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import { setWebShareData, closeKeyValIDBConnection } from './routes/_database/webShare'
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const timestamp = process.env.SAPPER_TIMESTAMP
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const ASSETS = `assets_${timestamp}`
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const WEBPACK_ASSETS = `webpack_assets_${timestamp}`
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const ON_DEMAND_CACHE = [
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{
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regex: /tesseract-core\.wasm/,
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cache: WEBPACK_ASSETS
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},
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{
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regex: /traineddata\.gz/,
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cache: ASSETS
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},
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{
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regex: /\$polyfill\$/,
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cache: WEBPACK_ASSETS
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}
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]
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// `static` is an array of everything in the `static` directory
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const assets = __assets__
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.map(file => file.startsWith('/') ? file : `/${file}`)
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.filter(filename => !filename.endsWith('.map'))
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.filter(filename => filename !== '/robots.txt')
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.filter(filename => !filename.includes('traineddata.gz')) // cache on-demand
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.filter(filename => !filename.endsWith('.webapp')) // KaiOS manifest
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.filter(filename => !/emoji-.*?\.json$/.test(filename)) // useless to cache; it already goes in IndexedDB
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.filter(filename => !/screenshot-.*?\.png/.test(filename)) // only used during PWA installation, don't bother caching
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// `shell` is an array of all the files generated by webpack
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// also contains '/index.html' for some reason
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const webpackAssets = __shell__
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.filter(filename => !filename.endsWith('.map')) // don't bother with sourcemaps
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.filter(filename => !filename.includes('tesseract-core.wasm')) // cache on-demand
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.filter(filename => !filename.includes('LICENSE')) // don't bother with license files
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.filter(filename => !filename.includes('$polyfill$')) // polyfills are cached dynamically
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// `routes` is an array of `{ pattern: RegExp }` objects that
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// match the pages in your src
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const routes = __routes__
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self.addEventListener('install', event => {
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event.waitUntil((async () => {
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await Promise.all([
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caches.open(WEBPACK_ASSETS).then(cache => cache.addAll(webpackAssets)),
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caches.open(ASSETS).then(cache => cache.addAll(assets))
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])
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// We shouldn't have to do this, but the previous page could be an old one,
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// which would not send us a postMessage to skipWaiting().
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// See https://github.com/nolanlawson/pinafore/issues/1243
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self.skipWaiting()
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})())
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})
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self.addEventListener('activate', event => {
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event.waitUntil((async () => {
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const keys = await caches.keys()
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// delete old asset/ondemand caches
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for (const key of keys) {
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if (key !== ASSETS &&
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!key.startsWith('webpack_assets_')) {
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await caches.delete(key)
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}
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}
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// for webpack static, keep the two latest builds because we may need
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// them when the service worker has installed but the page has not
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// yet reloaded (e.g. when it gives the toast saying "please reload"
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// but then you don't refresh and instead load an async chunk)
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const webpackKeysToDelete = keys
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.filter(key => key.startsWith('webpack_assets_'))
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.sort((a, b) => {
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const aTimestamp = parseInt(a.substring(15), 10)
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const bTimestamp = parseInt(b.substring(15), 10)
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return bTimestamp < aTimestamp ? -1 : 1
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})
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.slice(2)
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for (const key of webpackKeysToDelete) {
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await caches.delete(key)
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}
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await self.clients.claim()
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})())
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})
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self.addEventListener('fetch', event => {
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const req = event.request
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const url = new URL(req.url)
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// don't try to handle e.g. data: URIs
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if (!url.protocol.startsWith('http')) {
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return
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}
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event.respondWith((async () => {
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const sameOrigin = url.origin === self.origin
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if (sameOrigin) {
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if (req.method === 'POST' && url.pathname === '/share') {
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// handle Web Share Target requests (see manifest.json)
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const formData = await req.formData()
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const title = formData.get('title')
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const text = formData.get('text')
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const url = formData.get('url')
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const file = formData.get('file')
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await setWebShareData({ title, text, url, file })
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await closeKeyValIDBConnection() // don't need to keep the IDB connection open
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return Response.redirect(
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'/?pwa=true&compose=true', // pwa=true because this can only be invoked from a PWA
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303 // 303 recommended by https://web.dev/web-share-target/
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)
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}
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// always serve webpack-generated resources and
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// static from the cache if possible
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const response = await caches.match(req)
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if (response) {
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return response
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}
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for (const { regex, cache } of ON_DEMAND_CACHE) {
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if (regex.test(url.pathname)) {
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// cache this on-demand
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const response = await fetch(req)
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if (response && response.status >= 200 && response.status < 300) {
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const clonedResponse = response.clone()
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/* no await */
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caches.open(cache).then(cache => cache.put(req, clonedResponse))
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}
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return response
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}
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}
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// for routes, serve the /service-worker-index.html file from the most recent
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// static cache
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if (routes.find(route => route.pattern.test(url.pathname))) {
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const response = await caches.match('/service-worker-index.html')
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if (response) {
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return response
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}
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}
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}
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// for everything else, go network-only
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return fetch(req)
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})())
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})
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self.addEventListener('push', event => {
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event.waitUntil((async () => {
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const data = event.data.json()
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const { origin } = event.target
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try {
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const notification = await get(`${origin}/api/v1/notifications/${data.notification_id}`, {
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Authorization: `Bearer ${data.access_token}`
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}, { timeout: 2000 })
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await showRichNotification(data, notification)
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} catch (e) {
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await showSimpleNotification(data)
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}
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})())
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})
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async function showSimpleNotification (data) {
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await self.registration.showNotification(data.title, {
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icon: data.icon,
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body: data.body,
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data: {
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url: `${self.origin}/notifications`
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}
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})
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}
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async function showRichNotification (data, notification) {
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const { icon, body } = data
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const tag = notification.id
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const { origin } = self.location
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const badge = '/icon-push-badge.png'
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switch (notification.type) {
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case 'follow': {
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await self.registration.showNotification(data.title, {
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badge,
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icon,
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body,
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tag,
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data: {
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url: `${origin}/accounts/${notification.account.id}`
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}
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})
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break
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}
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case 'reblog':
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case 'favourite':
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case 'poll': {
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await self.registration.showNotification(data.title, {
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badge,
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icon,
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body,
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tag,
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data: {
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url: `${origin}/statuses/${notification.status.id}`
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}
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})
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break
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}
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case 'mention': {
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const isPublic = ['public', 'unlisted'].includes(notification.status.visibility)
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const actions = [
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isPublic && {
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action: 'reblog',
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icon: '/icon-push-fa-retweet.png', // generated manually from font-awesome-svg
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title: 'intl.reblog'
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},
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{
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action: 'favourite',
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icon: '/icon-push-fa-star.png', // generated manually from font-awesome-svg
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title: 'intl.favorite'
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}
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].filter(Boolean)
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await self.registration.showNotification(data.title, {
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badge,
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icon,
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body,
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tag,
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data: {
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instance: new URL(data.icon).origin,
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status_id: notification.status.id,
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access_token: data.access_token,
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url: `${origin}/statuses/${notification.status.id}`
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},
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actions
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})
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break
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}
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}
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}
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const cloneNotification = notification => {
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const clone = {}
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for (const k in notification) {
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// deliberately not doing a hasOwnProperty check, but skipping
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// functions and null props like onclick and onshow and showTrigger
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if (typeof notification[k] !== 'function' && notification[k] !== null) {
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clone[k] = notification[k]
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}
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}
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return clone
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}
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const updateNotificationWithoutAction = (notification, action) => {
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const newNotification = cloneNotification(notification)
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newNotification.actions = newNotification.actions.filter(item => item.action !== action)
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return self.registration.showNotification(newNotification.title, newNotification)
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}
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self.addEventListener('notificationclick', event => {
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event.waitUntil((async () => {
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switch (event.action) {
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case 'reblog': {
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const url = `${event.notification.data.instance}/api/v1/statuses/${event.notification.data.status_id}/reblog`
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await post(url, null, {
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Authorization: `Bearer ${event.notification.data.access_token}`
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})
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await updateNotificationWithoutAction(event.notification, 'reblog')
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break
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}
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case 'favourite': {
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const url = `${event.notification.data.instance}/api/v1/statuses/${event.notification.data.status_id}/favourite`
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await post(url, null, {
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Authorization: `Bearer ${event.notification.data.access_token}`
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})
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await updateNotificationWithoutAction(event.notification, 'favourite')
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break
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}
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default: {
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await self.clients.openWindow(event.notification.data.url)
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await event.notification.close()
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break
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}
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}
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})())
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})
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self.addEventListener('message', (event) => {
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switch (event.data) {
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case 'skip-waiting':
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self.skipWaiting()
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break
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}
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})
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