blob: 32d2e04cd67abecaa558804f09b91990a4a9946e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
import {joinPaths, parseUrl} from '../utils.js';
const {useServiceWorker, assetUrlPrefix, assetVersionEncoded} = window.config;
const cachePrefix = 'static-cache-v'; // actual version is set in the service worker script
const workerUrl = `${joinPaths(assetUrlPrefix, 'serviceworker.js')}?v=${assetVersionEncoded}`;
async function unregisterAll() {
for (const registration of await navigator.serviceWorker.getRegistrations()) {
if (registration.active) await registration.unregister();
}
}
async function unregisterOtherWorkers() {
for (const registration of await navigator.serviceWorker.getRegistrations()) {
const scriptPath = parseUrl(registration.active?.scriptURL || '').pathname;
const workerPath = parseUrl(workerUrl).pathname;
if (scriptPath !== workerPath) await registration.unregister();
}
}
async function invalidateCache() {
for (const key of await caches.keys()) {
if (key.startsWith(cachePrefix)) caches.delete(key);
}
}
async function checkCacheValidity() {
const cacheKey = assetVersionEncoded;
const storedCacheKey = localStorage.getItem('staticCacheKey');
// invalidate cache if it belongs to a different gitea version
if (cacheKey && storedCacheKey !== cacheKey) {
await invalidateCache();
localStorage.setItem('staticCacheKey', cacheKey);
}
}
export async function initServiceWorker() {
if (!('serviceWorker' in navigator)) return;
if (useServiceWorker) {
// unregister all service workers where scriptURL does not match the current one
await unregisterOtherWorkers();
try {
// the spec strictly requires it to be same-origin so the AssetUrlPrefix should contain AppSubUrl
await checkCacheValidity();
await navigator.serviceWorker.register(workerUrl);
} catch (err) {
console.error(err);
await invalidateCache();
await unregisterAll();
}
} else {
await invalidateCache();
await unregisterAll();
}
}
|
