Files
simple/frontend/sw.js
T
catarrh bf6730f028 v3.20.0 (review fixes): the PoR decode uses the effective counter; the PWA fallback matches the server's seed
Two boundary flaws found reviewing v3.20.0:

- /api/send-ota decoded the PoR with the request's `cntr`, not the counter
  the packet was actually built with.  With the new seeding an omitted
  counter is the normal case, so a warning ENVELOPE's verdict - notably the
  live card's cntr_low PoR - could fail its RC/CC check and be lost (the
  success and the failure path are both fixed).  Tests pin the decode counter
  on both paths; the failure path also echoes the effective `cntr`.
- the PWA's effective counter (preview / verify / the older-server fallback)
  fell back to the preset's first keyset and then 1, while the server's empty
  seed builds counter 0 (no preset / kvn 0 / an unknown keyset).  A manual
  form or a keyless packet then produced a spurious "Verify vs pySim"
  MISMATCH and a preview that differed from the delivered packet.
  spPresetCounterValue()/spCntrEffective() now mirror _preset_counter_seed()
  exactly: the packet's matched keyset, else 0.
- the `OTA SEND: counter not tracked` line reflects the effective counter (a
  seeded value is logged too); docs/api.md records that the seed uses the
  packet's keyset whatever SPI1.b5b4 says.

Tests: 823 frontend + 737 Python; sw cache simple-v394.
2026-10-05 22:37:28 +03:00

78 lines
2.1 KiB
JavaScript

const CACHE = 'simple-v394';
const URLS = [
'index.html',
'help.html',
'help-ru.html',
'style.css',
'sim.png',
'favicon.svg',
'icon-192.png',
'icon-512.png',
'manifest.json',
'des-bundle.js',
'aes-bundle.js',
'sim.svg',
'sim_anim.svg',
'nosim.svg',
'uicc_files.json',
];
self.addEventListener('install', e => {
// Fetch the shell with `cache: 'reload'`: a plain addAll() would re-use
// HTTP-cached copies, so a new SW version could precache a stale
// style.css/index.html (the stale-style trap, v3.6.31).
e.waitUntil(
caches.open(CACHE).then(c =>
Promise.all(URLS.map(u => fetch(u, { cache: 'reload' }).then(r => {
if (r && r.ok) return c.put(u, r);
})))
)
);
self.skipWaiting();
});
self.addEventListener('activate', e => {
e.waitUntil(
caches.keys().then(keys =>
Promise.all(keys.filter(k => k !== CACHE).map(k => caches.delete(k)))
).then(() => clients.claim())
);
});
const OFFLINE_RESPONSE = new Response('Offline: page not cached', {
status: 503,
statusText: 'Offline',
headers: { 'Content-Type': 'text/plain' },
});
self.addEventListener('fetch', e => {
if (!e.request.url.startsWith('http')) return;
const path = new URL(e.request.url).pathname;
if (path.startsWith('/api/')) return; // live data, never cache
if (e.request.method !== 'GET') return;
const isNavigate = e.request.mode === 'navigate';
const isSwScript = path.endsWith('/sw.js');
if (isNavigate) {
e.respondWith(
fetch(e.request).then(res => {
const clone = res.clone();
caches.open(CACHE).then(c => c.put(e.request, clone));
return res;
}).catch(() =>
caches.match(e.request)
.then(r => r || caches.match('index.html'))
.then(r => r || OFFLINE_RESPONSE)
)
);
} else if (isSwScript) {
e.respondWith(fetch(e.request).catch(() => OFFLINE_RESPONSE));
} else {
e.respondWith(
caches.match(e.request).then(r => r || fetch(e.request).then(res => {
const clone = res.clone();
caches.open(CACHE).then(c => c.put(e.request, clone));
return res;
}))
);
}
});