94 lines
2.6 KiB
JavaScript
94 lines
2.6 KiB
JavaScript
// @ts-nocheck
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self.addEventListener('fetch', (event) => {
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const url = new URL(event.request.url)
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const path = url.pathname.split('/')
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if(path[1] === 'sw'){
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try {
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switch (path[2]){
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case "check":{
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event.respondWith(checkCache(url))
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break
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}
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case "img": {
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event.respondWith(getSource(url))
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break
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}
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case "register": {
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let targerUrl = url
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const headers = event.request.headers
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const headerUrl = headers.get('x-register-url')
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if(headerUrl){
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targerUrl = new URL(headerUrl)
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}
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const noContentType = headers.get('x-no-content-type') === 'true'
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event.respondWith(
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registerCache(targerUrl, event.request.arrayBuffer(), noContentType)
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)
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break
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}
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case "init":{
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event.respondWith(new Response("true"))
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}
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default: {
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event.respondWith(new Response(
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path[2]
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))
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}
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}
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} catch (error) {
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event.respondWith(new Response(`${error}`))
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}
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}
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if(path[1] === 'transformers'){
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event.respondWith((async () => {
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const cache = await caches.open('risuCache')
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const res = await cache.match(url)
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if(res){
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return res
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}else{
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return await fetch(event.request)
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}
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})())
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}
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})
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async function checkCache(url){
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const cache = await caches.open('risuCache')
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return new Response(JSON.stringify({
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"able": !!(await cache.match(url))
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}))
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}
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async function getSource(url){
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const cache = await caches.open('risuCache')
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return await cache.match(url)
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}
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async function check(){
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}
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async function registerCache(urlr, buffer, noContentType = false){
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const cache = await caches.open('risuCache')
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const url = new URL(urlr)
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let path = url.pathname.split('/')
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path[2] = 'img'
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url.pathname = path.join('/')
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const buf = new Uint8Array(await buffer)
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let headers = {
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"cache-control": "max-age=604800",
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"content-type": "image/png"
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}
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if(noContentType){
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delete headers["content-type"]
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}
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await cache.put(url, new Response(buf, {
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headers
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}))
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return new Response(JSON.stringify({
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"done": true
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}))
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} |