2021-02-06 09:55:53 +00:00
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import { instance } from '@/instance';
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import { $i } from '@/account';
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import { api } from '@/os';
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import { lang } from '@/config';
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export async function initializeSw() {
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if (instance.swPublickey &&
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('serviceWorker' in navigator) &&
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('PushManager' in window) &&
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$i && $i.token) {
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navigator.serviceWorker.register(`/sw.js`);
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navigator.serviceWorker.ready.then(registration => {
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registration.active?.postMessage({
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msg: 'initialize',
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lang,
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});
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// SEE: https://developer.mozilla.org/en-US/docs/Web/API/PushManager/subscribe#Parameters
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registration.pushManager.subscribe({
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2021-02-12 16:28:20 +00:00
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userVisibleOnly: false,
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2021-02-06 09:55:53 +00:00
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applicationServerKey: urlBase64ToUint8Array(instance.swPublickey)
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}).then(subscription => {
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function encode(buffer: ArrayBuffer | null) {
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return btoa(String.fromCharCode.apply(null, new Uint8Array(buffer)));
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}
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// Register
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api('sw/register', {
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endpoint: subscription.endpoint,
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auth: encode(subscription.getKey('auth')),
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publickey: encode(subscription.getKey('p256dh'))
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});
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})
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// When subscribe failed
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.catch(async (err: Error) => {
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// 通知が許可されていなかったとき
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if (err.name === 'NotAllowedError') {
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return;
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}
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// 違うapplicationServerKey (または gcm_sender_id)のサブスクリプションが
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// 既に存在していることが原因でエラーになった可能性があるので、
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// そのサブスクリプションを解除しておく
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const subscription = await registration.pushManager.getSubscription();
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if (subscription) subscription.unsubscribe();
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});
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});
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}
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}
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/**
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* Convert the URL safe base64 string to a Uint8Array
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* @param base64String base64 string
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*/
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function urlBase64ToUint8Array(base64String: string): Uint8Array {
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const padding = '='.repeat((4 - base64String.length % 4) % 4);
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const base64 = (base64String + padding)
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.replace(/-/g, '+')
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.replace(/_/g, '/');
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const rawData = window.atob(base64);
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const outputArray = new Uint8Array(rawData.length);
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for (let i = 0; i < rawData.length; ++i) {
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outputArray[i] = rawData.charCodeAt(i);
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}
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return outputArray;
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}
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