Sharkey/src/client/mios.ts

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// TODO: このファイル消したい
import autobind from 'autobind-decorator';
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import { EventEmitter } from 'eventemitter3';
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import { apiUrl, version } from './config';
import Progress from './scripts/loading';
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import Stream from './scripts/stream';
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import store from './store';
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/**
* Misskey Operating System
*/
export default class MiOS extends EventEmitter {
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public store: ReturnType<typeof store>;
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/**
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* A connection manager of home stream
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*/
public stream: Stream;
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/**
* A registration of service worker
*/
private swRegistration: ServiceWorkerRegistration = null;
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constructor(vuex: MiOS['store']) {
super();
this.store = vuex;
}
@autobind
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public signout() {
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this.store.dispatch('logout');
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location.href = '/';
}
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/**
* Initialize MiOS (boot)
* @param callback A function that call when initialized
*/
@autobind
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public async init(callback) {
const finish = () => {
callback();
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this.store.dispatch('instance/fetch').then(() => {
// Init service worker
if (this.store.state.instance.meta.swPublickey) this.registerSw(this.store.state.instance.meta.swPublickey);
});
};
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// ユーザーをフェッチしてコールバックする
const fetchme = (token, cb) => {
let me = null;
// Return when not signed in
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if (token == null || token === 'null') {
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return done();
}
// Fetch user
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fetch(`${apiUrl}/i`, {
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method: 'POST',
body: JSON.stringify({
i: token
})
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})
// When success
.then(res => {
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// When failed to authenticate user
if (res.status !== 200 && res.status < 500) {
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return this.signout();
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}
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// Parse response
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res.json().then(i => {
me = i;
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me.token = token;
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done();
});
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})
// When failure
.catch(() => {
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// Render the error screen
document.body.innerHTML = '<div id="err">Oops!</div>';
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Progress.done();
});
function done() {
if (cb) cb(me);
}
};
// フェッチが完了したとき
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const fetched = () => {
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this.emit('signedin');
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this.initStream();
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// Finish init
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finish();
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};
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// キャッシュがあったとき
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if (this.store.state.i != null) {
if (this.store.state.i.token == null) {
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this.signout();
return;
}
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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();
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// 後から新鮮なデータをフェッチ
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fetchme(this.store.state.i.token, freshData => {
this.store.dispatch('mergeMe', freshData);
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});
} else {
// Get token from localStorage
let i = localStorage.getItem('i');
// 連携ログインの場合用にCookieを参照する
if (i == null || i === 'null') {
i = (document.cookie.match(/igi=(\w+)/) || [null, null])[1];
}
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fetchme(i, me => {
if (me) {
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this.store.dispatch('login', me);
fetched();
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} else {
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this.initStream();
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// Finish init
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finish();
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}
});
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}
}
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@autobind
private initStream() {
this.stream = new Stream(this);
}
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/**
* Register service worker
*/
@autobind
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private registerSw(swPublickey: string) {
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// Check whether service worker and push manager supported
const isSwSupported =
('serviceWorker' in navigator) && ('PushManager' in window);
// Reject when browser not service worker supported
if (!isSwSupported) return;
// Reject when not signed in to Misskey
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if (!this.store.getters.isSignedIn) return;
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// When service worker activated
navigator.serviceWorker.ready.then(registration => {
this.swRegistration = registration;
// Options of pushManager.subscribe
// SEE: https://developer.mozilla.org/en-US/docs/Web/API/PushManager/subscribe#Parameters
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const opts = {
// A boolean indicating that the returned push subscription
// will only be used for messages whose effect is made visible to the user.
userVisibleOnly: true,
// A public key your push server will use to send
// messages to client apps via a push server.
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applicationServerKey: urlBase64ToUint8Array(swPublickey)
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};
// Subscribe push notification
this.swRegistration.pushManager.subscribe(opts).then(subscription => {
function encode(buffer: ArrayBuffer) {
return btoa(String.fromCharCode.apply(null, new Uint8Array(buffer)));
}
// Register
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this.store.dispatch('api', {
endpoint: 'sw/register',
data: {
endpoint: subscription.endpoint,
auth: encode(subscription.getKey('auth')),
publickey: encode(subscription.getKey('p256dh'))
}
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});
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})
// When subscribe failed
.catch(async (err: Error) => {
// 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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// 違うapplicationServerKey (または gcm_sender_id)のサブスクリプションが
// 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、
// そのサブスクリプションを解除しておく
const subscription = await this.swRegistration.pushManager.getSubscription();
if (subscription) subscription.unsubscribe();
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});
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});
// The path of service worker script
const sw = `/sw.${version}.js`;
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// Register service worker
navigator.serviceWorker.register(sw);
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}
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}
/**
* Convert the URL safe base64 string to a Uint8Array
* @param base64String base64 string
*/
function urlBase64ToUint8Array(base64String: string): Uint8Array {
const padding = '='.repeat((4 - base64String.length % 4) % 4);
const base64 = (base64String + padding)
.replace(/-/g, '+')
.replace(/_/g, '/');
const rawData = window.atob(base64);
const outputArray = new Uint8Array(rawData.length);
for (let i = 0; i < rawData.length; ++i) {
outputArray[i] = rawData.charCodeAt(i);
}
return outputArray;
}