https://wmeuro.eu/assets/push.js

1'use strict';
2var appServerKey = 'BHK1O82NvTWYE9Hod4dPpZW55oT8b1FxVA8KG9EGEPvpUl-o_7x6ubqCAp-0QcwzeHqC28PU7c5c1R5vTV-VdLo';
3var hasSubscription = false;
4var serviceWorkerRegistration = null;
5var subscriptionData = false;
6
7
8navigator.serviceWorker.register('/sw2.js').then(function (sw) {
9    serviceWorkerRegistration = sw;
10
11    serviceWorkerRegistration.pushManager.getSubscription().then(function(subscription) {
12        hasSubscription = !(subscription === null);
13        requestPermission();
14      });
15}).catch(function (error) {
16    console.error('Service Worker Error', error);
17});
18
19function urlB64ToUint8Array(base64String) {
20    var padding = '='.repeat((4 - base64String.length % 4) % 4);
21    var base64 = (base64String + padding).replace(/\-/g, '+').replace(/_/g, '/');
22    var rawData = window.atob(base64);
23    var outputArray = new Uint8Array(rawData.length);
24    for (var i = 0; i < rawData.length; ++i) {
25        outputArray[i] = rawData.charCodeAt(i);
26    }
27    return outputArray;
28}
29
30function subscribeUser() {
31    serviceWorkerRegistration.pushManager.subscribe({
32        userVisibleOnly: true,
33        applicationServerKey: urlB64ToUint8Array(appServerKey)
34    }).then(function (subscription) {
35        //fetch('https://editor.fo.ru/api/v1/webpush/publiccreate', {
36        fetch('/api/v1/webpush/publiccreate', {
37            method: "POST",
38            headers: {
39                'Content-Type': 'application/json'
40            },
41            body: JSON.stringify(subscription)
42        }).then(function (response) {
43            return response;
44        }).then(function (text) {
45            console.log('User is subscribed.');
46            hasSubscription = true;
47            //updatePushButton();
48        }).catch(function (error) {
49            hasSubscription = false;
50            console.error('error fetching subscribe', error);
51        });
52    }).catch(function (err) {
53        console.log('Failed to subscribe the user!!: ', err);
54    });
55}
56
57function unsubscribeUser() {
58    serviceWorkerRegistration.pushManager.getSubscription().then(function (subscription) {
59        if (subscription) {
60            subscriptionData = {
61                endpoint: subscription.endpoint
62            };
63            fetch('https://editor.fo.ru/api/v1/webpush', {
64                method: "DELETE",
65                headers: {
66                    'Content-Type': 'application/json'
67                },
68                body: JSON.stringify(subscriptionData)
69            }).then(function (response) {
70                return response;
71            }).then(function (text) {
72                hasSubscription = false;
73            }).catch(function (error) {
74                hasSubscription = true;
75                console.error('error fetching subscribe', error);
76            });
77            hasSubscription = false;
78            return subscription.unsubscribe();
79        }
80    });
81}
82
83
84function requestPermission() {
85    return new Promise(function (resolve, reject) {
86        var permissionResult = Notification.requestPermission(function (result) {
87            // Поддержка устаревшей версии с функцией обратного вызова.
88            resolve(result);
89        });
90        if (permissionResult) {
91            permissionResult.then(resolve, reject);
92        }
93    }).then(function (permissionResult) {
94        if (permissionResult !== 'granted') {
95            throw new Error('Permission not granted.');
96        } else {
97            if (!hasSubscription) {
98                subscribeUser();
99            }
100        }
101    });
102}
103