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mirror of https://github.com/MisskeyIO/misskey synced 2024-12-17 08:09:09 +09:00
MisskeyIO/src/client/app/boot.js

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/**
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* MISSKEY BOOT LOADER
* (ENTRY POINT)
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*/
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/**
* ドメインに基づいて適切なスクリプトを読み込みます
* ユーザーの言語およびモバイル端末か否かも考慮します
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* webpackは介さないためrequireやimportは使えません
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*/
'use strict';
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(function() {
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// キャッシュ削除要求があれば従う
if (localStorage.getItem('shouldFlush') == 'true') {
refresh();
return;
}
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const langs = LANGS;
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//#region Apply theme
const theme = localStorage.getItem('theme');
if (theme) {
Object.entries(JSON.parse(theme)).forEach(([k, v]) => {
document.documentElement.style.setProperty(`--${k}`, v.toString());
});
}
//#endregion
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//#region Load settings
let settings = null;
const vuex = localStorage.getItem('vuex');
if (vuex) {
settings = JSON.parse(vuex);
}
//#endregion
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// Get the current url information
const url = new URL(location.href);
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//#region Detect app name
let app = null;
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if (`${url.pathname}/`.startsWith('/docs/')) app = 'docs';
if (`${url.pathname}/`.startsWith('/dev/')) app = 'dev';
if (`${url.pathname}/`.startsWith('/auth/')) app = 'auth';
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//#endregion
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//#region Detect the user language
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let lang = null;
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if (langs.includes(navigator.language)) {
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lang = navigator.language;
} else {
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lang = langs.find(x => x.split('-')[0] == navigator.language);
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if (lang == null) {
// Fallback
lang = 'en-US';
}
}
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if (settings && settings.device.lang &&
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langs.includes(settings.device.lang)) {
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lang = settings.device.lang;
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}
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//#endregion
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// Detect the user agent
const ua = navigator.userAgent.toLowerCase();
const isMobile = /mobile|iphone|ipad|android/.test(ua);
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// Get the <head> element
const head = document.getElementsByTagName('head')[0];
// If mobile, insert the viewport meta tag
if (isMobile) {
const meta = document.createElement('meta');
meta.setAttribute('name', 'viewport');
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meta.setAttribute('content',
'width=device-width,' +
'initial-scale=1,' +
'minimum-scale=1,' +
'maximum-scale=1,' +
'user-scalable=no');
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head.appendChild(meta);
}
// Switch desktop or mobile version
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if (app == null) {
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app = isMobile ? 'mobile' : 'desktop';
}
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// Script version
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const ver = localStorage.getItem('v') || VERSION;
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// Get salt query
const salt = localStorage.getItem('salt')
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? `?salt=${localStorage.getItem('salt')}`
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: '';
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// Load an app script
// Note: 'async' make it possible to load the script asyncly.
// 'defer' make it possible to run the script when the dom loaded.
const script = document.createElement('script');
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script.setAttribute('src', `/assets/${app}.${ver}.${lang}.js${salt}`);
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script.setAttribute('async', 'true');
script.setAttribute('defer', 'true');
head.appendChild(script);
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// 3秒経ってもスクリプトがロードされない場合はバージョンが古くて
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// 404になっているせいかもしれないので、バージョンを確認して古ければ更新する
//
// 読み込まれたスクリプトからこのタイマーを解除できるように、
// グローバルにタイマーIDを代入しておく
window.mkBootTimer = window.setTimeout(async () => {
// Fetch meta
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const res = await fetch('/api/meta', {
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method: 'POST',
cache: 'no-cache'
});
// Parse
const meta = await res.json();
// Compare versions
if (meta.clientVersion != ver) {
localStorage.setItem('v', meta.clientVersion);
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alert(
'Misskeyの新しいバージョンがあります。ページを再度読み込みします。' +
'\n\n' +
'New version of Misskey available. The page will be reloaded.');
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refresh();
}
}, 3000);
function refresh() {
localStorage.setItem('shouldFlush', 'false');
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// Random
localStorage.setItem('salt', Math.random().toString());
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// Clear cache (service worker)
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try {
navigator.serviceWorker.controller.postMessage('clear');
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navigator.serviceWorker.getRegistrations().then(registrations => {
registrations.forEach(registration => registration.unregister());
});
} catch (e) {
console.error(e);
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}
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// Force reload
location.reload(true);
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}
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})();