Sharkey/src/client/mios.ts
2020-02-20 06:08:49 +09:00

277 lines
6.7 KiB
TypeScript

import autobind from 'autobind-decorator';
import Vue from 'vue';
import { EventEmitter } from 'eventemitter3';
import initStore from './store';
import { apiUrl, version } from './config';
import Progress from './scripts/loading';
import Stream from './scripts/stream';
//#region api requests
let spinner = null;
let pending = 0;
//#endregion
/**
* Misskey Operating System
*/
export default class MiOS extends EventEmitter {
public app: Vue;
public store: ReturnType<typeof initStore>;
/**
* A connection manager of home stream
*/
public stream: Stream;
/**
* A registration of service worker
*/
private swRegistration: ServiceWorkerRegistration = null;
@autobind
public signout() {
this.store.dispatch('logout');
location.href = '/';
}
/**
* Initialize MiOS (boot)
* @param callback A function that call when initialized
*/
@autobind
public async init(callback) {
const finish = () => {
callback();
this.store.dispatch('instance/fetch').then(() => {
// Init service worker
if (this.store.state.instance.meta.swPublickey) this.registerSw(this.store.state.instance.meta.swPublickey);
});
};
this.store = initStore(this);
// 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
if (token == null || token === 'null') {
return done();
}
// Fetch user
fetch(`${apiUrl}/i`, {
method: 'POST',
body: JSON.stringify({
i: token
})
})
// When success
.then(res => {
// When failed to authenticate user
if (res.status !== 200 && res.status < 500) {
return this.signout();
}
// Parse response
res.json().then(i => {
me = i;
me.token = token;
done();
});
})
// When failure
.catch(() => {
// Render the error screen
document.body.innerHTML = '<div id="err">Oops!</div>';
Progress.done();
});
function done() {
if (cb) cb(me);
}
};
// フェッチが完了したとき
const fetched = () => {
this.emit('signedin');
this.initStream();
// Finish init
finish();
};
// キャッシュがあったとき
if (this.store.state.i != null) {
if (this.store.state.i.token == null) {
this.signout();
return;
}
// 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、
fetched();
// 後から新鮮なデータをフェッチ
fetchme(this.store.state.i.token, freshData => {
this.store.dispatch('mergeMe', freshData);
});
} else {
// Get token from localStorage
const i = localStorage.getItem('i');
fetchme(i, me => {
if (me) {
this.store.dispatch('login', me);
fetched();
} else {
this.initStream();
// Finish init
finish();
}
});
}
}
@autobind
private initStream() {
this.stream = new Stream(this);
}
/**
* Register service worker
*/
@autobind
private registerSw(swPublickey: string) {
// 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
if (!this.store.getters.isSignedIn) return;
// 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
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.
applicationServerKey: urlBase64ToUint8Array(swPublickey)
};
// Subscribe push notification
this.swRegistration.pushManager.subscribe(opts).then(subscription => {
function encode(buffer: ArrayBuffer) {
return btoa(String.fromCharCode.apply(null, new Uint8Array(buffer)));
}
// Register
this.api('sw/register', {
endpoint: subscription.endpoint,
auth: encode(subscription.getKey('auth')),
publickey: encode(subscription.getKey('p256dh'))
});
})
// When subscribe failed
.catch(async (err: Error) => {
// 通知が許可されていなかったとき
if (err.name == 'NotAllowedError') {
return;
}
// 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();
});
});
// The path of service worker script
const sw = `/sw.${version}.js`;
// Register service worker
navigator.serviceWorker.register(sw);
}
/**
* Misskey APIにリクエストします
* @param endpoint エンドポイント名
* @param data パラメータ
*/
@autobind
public api(endpoint: string, data: { [x: string]: any } = {}, token?): Promise<{ [x: string]: any }> {
if (++pending === 1) {
spinner = document.createElement('div');
spinner.setAttribute('id', 'wait');
document.body.appendChild(spinner);
}
const onFinally = () => {
if (--pending === 0) spinner.parentNode.removeChild(spinner);
};
const promise = new Promise((resolve, reject) => {
// Append a credential
if (this.store.getters.isSignedIn) (data as any).i = this.store.state.i.token;
if (token) (data as any).i = token;
// Send request
fetch(endpoint.indexOf('://') > -1 ? endpoint : `${apiUrl}/${endpoint}`, {
method: 'POST',
body: JSON.stringify(data),
credentials: 'omit',
cache: 'no-cache'
}).then(async (res) => {
const body = res.status === 204 ? null : await res.json();
if (res.status === 200) {
resolve(body);
} else if (res.status === 204) {
resolve();
} else {
reject(body.error);
}
}).catch(reject);
});
promise.then(onFinally, onFinally);
return promise;
}
}
/**
* 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;
}