379 lines
9.5 KiB
TypeScript
379 lines
9.5 KiB
TypeScript
import { EventEmitter } from 'eventemitter3';
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import * as riot from 'riot';
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import signout from './scripts/signout';
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import Progress from './scripts/loading';
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import HomeStreamManager from './scripts/streaming/home-stream-manager';
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import api from './scripts/api';
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import DriveStreamManager from './scripts/streaming/drive-stream-manager';
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import ServerStreamManager from './scripts/streaming/server-stream-manager';
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import RequestsStreamManager from './scripts/streaming/requests-stream-manager';
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import MessagingIndexStreamManager from './scripts/streaming/messaging-index-stream-manager';
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//#region environment variables
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declare const _VERSION_: string;
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declare const _LANG_: string;
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declare const _API_URL_: string;
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declare const _SW_PUBLICKEY_: string;
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//#endregion
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/**
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* Misskey Operating System
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*/
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export default class MiOS extends EventEmitter {
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/**
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* Misskeyの /meta で取得できるメタ情報
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*/
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private meta: {
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data: { [x: string]: any };
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chachedAt: Date;
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};
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private isMetaFetching = false;
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/**
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* A signing user
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*/
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public i: { [x: string]: any };
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/**
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* Whether signed in
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*/
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public get isSignedin() {
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return this.i != null;
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}
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/**
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* Whether is debug mode
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*/
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public get debug() {
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return localStorage.getItem('debug') == 'true';
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}
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/**
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* A connection manager of home stream
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*/
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public stream: HomeStreamManager;
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/**
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* Connection managers
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*/
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public streams: {
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driveStream: DriveStreamManager;
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serverStream: ServerStreamManager;
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requestsStream: RequestsStreamManager;
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messagingIndexStream: MessagingIndexStreamManager;
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} = {
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driveStream: null,
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serverStream: null,
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requestsStream: null,
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messagingIndexStream: null
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};
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/**
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* A registration of service worker
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*/
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private swRegistration: ServiceWorkerRegistration = null;
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/**
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* Whether should register ServiceWorker
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*/
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private shouldRegisterSw: boolean;
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/**
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* MiOSインスタンスを作成します
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* @param shouldRegisterSw ServiceWorkerを登録するかどうか
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*/
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constructor(shouldRegisterSw = false) {
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super();
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this.shouldRegisterSw = shouldRegisterSw;
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this.streams.serverStream = new ServerStreamManager();
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this.streams.requestsStream = new RequestsStreamManager();
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//#region BIND
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this.log = this.log.bind(this);
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this.logInfo = this.logInfo.bind(this);
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this.logWarn = this.logWarn.bind(this);
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this.logError = this.logError.bind(this);
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this.init = this.init.bind(this);
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this.api = this.api.bind(this);
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this.getMeta = this.getMeta.bind(this);
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this.registerSw = this.registerSw.bind(this);
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//#endregion
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this.once('signedin', () => {
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// Init home stream manager
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this.stream = new HomeStreamManager(this.i);
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// Init other stream manager
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this.streams.driveStream = new DriveStreamManager(this.i);
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this.streams.messagingIndexStream = new MessagingIndexStreamManager(this.i);
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});
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}
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public log(...args) {
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if (!this.debug) return;
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console.log.apply(null, args);
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}
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public logInfo(...args) {
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if (!this.debug) return;
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console.info.apply(null, args);
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}
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public logWarn(...args) {
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if (!this.debug) return;
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console.warn.apply(null, args);
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}
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public logError(...args) {
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if (!this.debug) return;
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console.error.apply(null, args);
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}
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/**
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* Initialize MiOS (boot)
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* @param callback A function that call when initialized
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*/
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public async init(callback) {
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// ユーザーをフェッチしてコールバックする
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const fetchme = (token, cb) => {
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let me = null;
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// Return when not signed in
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if (token == null) {
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return done();
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}
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// Fetch user
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fetch(`${_API_URL_}/i`, {
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method: 'POST',
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body: JSON.stringify({
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i: token
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})
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})
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// When success
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.then(res => {
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// When failed to authenticate user
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if (res.status !== 200) {
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return signout();
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}
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// Parse response
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res.json().then(i => {
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me = i;
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me.token = token;
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done();
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});
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})
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// When failure
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.catch(() => {
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// Render the error screen
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//document.body.innerHTML = '<mk-error />';
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//riot.mount('*');
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Progress.done();
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});
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function done() {
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if (cb) cb(me);
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}
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};
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// フェッチが完了したとき
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const fetched = me => {
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if (me) {
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riot.observable(me);
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// この me オブジェクトを更新するメソッド
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me.update = data => {
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if (data) Object.assign(me, data);
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me.trigger('updated');
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};
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// ローカルストレージにキャッシュ
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localStorage.setItem('me', JSON.stringify(me));
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// 自分の情報が更新されたとき
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me.on('updated', () => {
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// キャッシュ更新
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localStorage.setItem('me', JSON.stringify(me));
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});
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}
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this.i = me;
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this.emit('signedin');
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// Finish init
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callback();
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//#region Post
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// Init service worker
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if (this.shouldRegisterSw) this.registerSw();
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//#endregion
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};
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// Get cached account data
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const cachedMe = JSON.parse(localStorage.getItem('me'));
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// キャッシュがあったとき
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if (cachedMe) {
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// とりあえずキャッシュされたデータでお茶を濁して(?)おいて、
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fetched(cachedMe);
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// 後から新鮮なデータをフェッチ
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fetchme(cachedMe.token, freshData => {
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Object.assign(cachedMe, freshData);
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cachedMe.trigger('updated');
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cachedMe.trigger('refreshed');
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});
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} else {
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// Get token from cookie
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const i = (document.cookie.match(/i=(!\w+)/) || [null, null])[1];
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fetchme(i, fetched);
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}
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}
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/**
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* Register service worker
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*/
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private registerSw() {
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// Check whether service worker and push manager supported
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const isSwSupported =
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('serviceWorker' in navigator) && ('PushManager' in window);
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// Reject when browser not service worker supported
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if (!isSwSupported) return;
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// Reject when not signed in to Misskey
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if (!this.isSignedin) return;
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// When service worker activated
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navigator.serviceWorker.ready.then(registration => {
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this.log('[sw] ready: ', registration);
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this.swRegistration = registration;
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// Options of pushManager.subscribe
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// SEE: https://developer.mozilla.org/en-US/docs/Web/API/PushManager/subscribe#Parameters
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const opts = {
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// A boolean indicating that the returned push subscription
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// will only be used for messages whose effect is made visible to the user.
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userVisibleOnly: true,
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// A public key your push server will use to send
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// messages to client apps via a push server.
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applicationServerKey: urlBase64ToUint8Array(_SW_PUBLICKEY_)
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};
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// Subscribe push notification
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this.swRegistration.pushManager.subscribe(opts).then(subscription => {
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this.log('[sw] Subscribe OK:', subscription);
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function encode(buffer: ArrayBuffer) {
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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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this.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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this.logError('[sw] Subscribe Error:', err);
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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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this.logError('[sw] Subscribe failed due to notification not allowed');
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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 this.swRegistration.pushManager.getSubscription();
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if (subscription) subscription.unsubscribe();
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});
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});
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// The path of service worker script
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const sw = `/sw.${_VERSION_}.${_LANG_}.js`;
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// Register service worker
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navigator.serviceWorker.register(sw).then(registration => {
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// 登録成功
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this.logInfo('[sw] Registration successful with scope: ', registration.scope);
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}).catch(err => {
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// 登録失敗 :(
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this.logError('[sw] Registration failed: ', err);
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});
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}
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/**
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* Misskey APIにリクエストします
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* @param endpoint エンドポイント名
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* @param data パラメータ
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*/
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public api(endpoint: string, data?: { [x: string]: any }) {
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return api(this.i, endpoint, data);
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}
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/**
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* Misskeyのメタ情報を取得します
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* @param force キャッシュを無視するか否か
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*/
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public getMeta(force = false) {
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return new Promise<{ [x: string]: any }>(async (res, rej) => {
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if (this.isMetaFetching) {
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this.once('_meta_fetched_', () => {
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res(this.meta.data);
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});
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return;
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}
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const expire = 1000 * 60; // 1min
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// forceが有効, meta情報を保持していない or 期限切れ
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if (force || this.meta == null || Date.now() - this.meta.chachedAt.getTime() > expire) {
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this.isMetaFetching = true;
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const meta = await this.api('meta');
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this.meta = {
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data: meta,
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chachedAt: new Date()
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};
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this.isMetaFetching = false;
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this.emit('_meta_fetched_');
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res(meta);
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} else {
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res(this.meta.data);
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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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