https://www.bakerias.com/push-sw.js?icon=

1/*
2 * Push-only service worker for listing Subscribe/Alerts notifications.
3 * Registered by /js/web-push-subscribe.js with scope /push-notifications/, so it
4 * never controls site pages and has no fetch handler. The legacy /sw.js and
5 * /service-worker.js files are self-unregistering kill switches; keep them separate.
6 */
7self.addEventListener('install', function () {
8    self.skipWaiting();
9});
10
11self.addEventListener('activate', function (event) {
12    event.waitUntil(self.clients.claim());
13});
14
15// Site icon passed by web-push-subscribe.js as ?icon=/img/<site>/<file>; same-origin only.
16var SITE_ICON = (function () {
17    var value = new URL(self.location.href).searchParams.get('icon') || '';
18    return /^\/img\/[A-Za-z0-9_\-]+\/[A-Za-z0-9_.\-]+$/.test(value) ? value : '';
19})();
20
21function sameOriginUrl(value) {
22    try {
23        var url = new URL(value || '/', self.location.origin);
24        return url.origin === self.location.origin ? url.href : self.location.origin + '/';
25    } catch (e) {
26        return self.location.origin + '/';
27    }
28}
29
30self.addEventListener('push', function (event) {
31    var data = {};
32    if (event.data) {
33        try {
34            data = event.data.json();
35        } catch (e) {
36            data = { body: event.data.text() };
37        }
38    }
39    var options = {
40        body: data.body || '',
41        tag: data.tag || undefined,
42        renotify: !!data.tag,
43        data: { url: sameOriginUrl(data.url), click: typeof data.click === 'string' ? data.click : '' }
44    };
45    if (SITE_ICON) {
46        options.icon = SITE_ICON;
47    }
48    event.waitUntil(self.registration.showNotification(data.title || self.location.hostname, options));
49});
50
51// Reports the click for attribution; failures are ignored so they never block navigation.
52function reportClick(token, landed) {
53    if (!token) {
54        return Promise.resolve();
55    }
56    return fetch('/push/click', {
57        method: 'POST',
58        credentials: 'same-origin',
59        keepalive: true,
60        headers: { 'Content-Type': 'application/json' },
61        body: JSON.stringify({ token: token, landed: landed })
62    }).catch(function () {});
63}
64
65self.addEventListener('notificationclick', function (event) {
66    event.notification.close();
67    var data = event.notification.data || {};
68    var target = data.url || self.location.origin + '/';
69    event.waitUntil(
70        self.clients.matchAll({ type: 'window', includeUncontrolled: true }).then(function (clients) {
71            for (var i = 0; i < clients.length; i++) {
72                if (clients[i].url === target && 'focus' in clients[i]) {
73                    return clients[i].focus();
74                }
75            }
76            return self.clients.openWindow ? self.clients.openWindow(target) : null;
77        }).then(function (client) {
78            return reportClick(data.click, !!client);
79        }, function () {
80            return reportClick(data.click, false);
81        })
82    );
83});
84
85// The browser rotated or dropped the subscription; stop sending to the old endpoint.
86self.addEventListener('pushsubscriptionchange', function (event) {
87    var old = event.oldSubscription;
88    if (!old || !old.endpoint) {
89        return;
90    }
91    event.waitUntil(
92        fetch('/push/unsubscribe', {
93            method: 'POST',
94            credentials: 'same-origin',
95            headers: { 'Content-Type': 'application/json' },
96            body: JSON.stringify({ endpoint: old.endpoint })
97        }).catch(function () {})
98    );
99});