Files
otaman/frontend/sw.js
T
catarrh 92f646df08 scp81: BER-encode the Command Scripting template lengths (v2.1.11)
The C-APDU TLV length was written as a raw byte: a 245-byte LOAD command
produced 'AE 80 22 F5 ...', which BER reads as a long-form marker, so the
card mis-parsed every script command over 127 bytes. Small commands worked,
which made a RAM install look alive: the card answered the LOAD steps with a
degenerate 'AF 80' body (no R-APDU), and the final INSTALL [for install]
failed with 6A88 because the package never loaded.

Both the indefinite ('22' TLV) and definite ('AA' outer) lengths are now
BER-encoded (same rule as the BIP channel data TLV fix). Tests: 245-byte
LOAD body, short form, definite variant (200 python, 346 frontend);
findings doc updated; service worker v148.
2026-09-16 07:45:14 +03:00

70 lines
1.8 KiB
JavaScript

const CACHE = 'otaman-v148';
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',
];
self.addEventListener('install', e => {
e.waitUntil(
caches.open(CACHE).then(c => c.addAll(URLS))
);
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;
}))
);
}
});