70 lines
2.2 KiB
TypeScript
70 lines
2.2 KiB
TypeScript
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 (!("serviceWorker" in navigator)) return;
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navigator.serviceWorker.register("/sw.js", { scope: "/", type: "classic" });
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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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if (instance.swPublickey && "PushManager" in window && $i && $i.token) {
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// SEE: https://developer.mozilla.org/en-US/docs/Web/API/PushManager/subscribe#Parameters
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registration.pushManager
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.subscribe({
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userVisibleOnly: true,
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applicationServerKey: urlBase64ToUint8Array(instance.swPublickey),
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})
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.then((subscription) => {
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function encode(buffer: ArrayBuffer | null) {
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return btoa(
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String.fromCharCode.apply(null, new Uint8Array(buffer)),
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);
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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).replace(/-/g, "+").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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