https://versia.ru/i/v358/js/push/push.js

1//
2// push.js
3//
4// @license: BSD
5// @mailto:[email protected]
6// @author Andrey Golubev aka 440hz
7
8'use strict';
9
10// версия
11var v = '0.0.48';
12// префикс
13var p = 'PUSHER [' + v + ']: ';
14// задержка выдачи запроса на пуши
15var iTime = 3 * 60 * 1000;
16
17function reqPermission() {
18    console.info(p + 'req');
19    Notification.requestPermission().then(function (permission) {
20        console.info(p + 'say ' + permission);
21        if (!('permission' in Notification)) {
22            Notification.permission = permission;
23            return true;
24        }
25    });
26}
27
28function askPermission() {
29    console.info(p + 'ask');
30    if (!("Notification" in window)) {
31        console.info(p + 'fail');
32    } else if (Notification.permission === "granted") {
33        console.info(p + 'granted');
34        return true;
35    } else if (Notification.permission === "denied") {
36        console.info(p + 'denied');
37        return false;
38    } else if (Notification.permission !== "denied") {
39        console.info(p + 'timed');
40        setTimeout(reqPermission, iTime);
41        return false;
42    } else {
43        console.info(p + 'unknown', Notification.permission);
44    }
45
46    return false;
47}
48
49function setPermission(serviceWorkerRegistration) {
50    serviceWorkerRegistration.pushManager
51        .subscribe({
52            userVisibleOnly: true
53        })
54        .then(
55            function (pushSubscription) {
56                console.info(p + 'send endpoint [' + pushSubscription.endpoint + ']');
57                try {
58                    var xhr = new XMLHttpRequest(),
59                        url = '/push.json',
60                        params =
61                            {
62                                endpoint: pushSubscription.endpoint,
63                                mainsite: window.location.hostname
64                            };
65
66                    xhr.open('POST', url, true);
67                    xhr.setRequestHeader('Content-Type', 'application/json;charset=UTF-8');
68                    xhr.send(JSON.stringify(params));
69
70                    xhr.onload = function () {
71
72                    };
73                    xhr.onerror = function () {
74                    };
75                } catch (e) {
76                }
77
78            },
79            function (error) {
80                console.error(p + 'ERROR:', error);
81                //askPermission();
82            }
83        );
84}
85
86function enablePush() {
87    console.info(p + 'ENABLED');
88    if ('serviceWorker' in navigator) {
89        console.info(p + 'Service Worker is supported');
90        navigator.serviceWorker
91            .register('/service-worker.js')
92            .then(function () {
93                return navigator.serviceWorker.ready;
94            })
95            .then(function (serviceWorkerRegistration) {
96                if (askPermission()) {
97                    setPermission(serviceWorkerRegistration);
98                }
99            }).catch(function (error) {
100            console.error(p + 'Service Worker Error', error);
101        });
102    }
103}
104
105////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
106// хлопочем о накрутках, что б не палицо
107var isFramed = false;
108try {
109    isFramed = window != window.top || document != top.document || self.location != top.location;
110} catch (e) {
111    isFramed = true;
112}
113////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
114
115console.info(p + 'START');
116if (!isFramed) {
117    //setTimeout(enablePush, iTime);
118    enablePush();
119}