Risuai 0.6.3 first commit

public/sw.js

@@ -0,0 +1,70 @@
+// @ts-nocheck
+
+self.addEventListener('fetch', (event) => {
+    const url = new URL(event.request.url)
+    const path = url.pathname.split('/')
+    if(path[1] === 'sw'){
+        try {
+            switch (path[2]){
+                case "check":{
+                    event.respondWith(checkCache(url))
+                    break
+                }
+                case "img": {
+                    event.respondWith(getImg(url))
+                    break
+                }
+                case "register": {
+                    event.respondWith(registerCache(url, event.request.arrayBuffer()))
+                    break
+                }
+                case "init":{
+                    event.respondWith(new Response("true"))
+                }
+                default: {
+                    event.respondWith(new Response(
+                        path[2]
+                    ))
+                }
+            }
+        } catch (error) {
+            event.respondWith(new Response(`${error}`))
+        }
+    }
+})
+
+
+async function checkCache(url){
+    const cache = await caches.open('risuCache')
+
+    return new Response(JSON.stringify({
+        "able": !!(await cache.match(url))
+    }))
+}
+
+async function getImg(url){
+    const cache = await caches.open('risuCache')
+    return await cache.match(url)
+}
+
+async function check(){
+
+}
+
+async function registerCache(urlr, buffer){
+    const cache = await caches.open('risuCache')
+    const url = new URL(urlr)
+    let path = url.pathname.split('/')
+    path[2] = 'img'
+    url.pathname = path.join('/')
+    const buf = new Uint8Array(await buffer)
+    await cache.put(url, new Response(buf, {
+        headers: {
+            "cache-control": "max-age=604800",
+            "content-type": "image/png"
+        }
+    }))
+    return new Response(JSON.stringify({
+        "done": true
+    }))
+}