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boot.js
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boot.js
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/**
* BOOT LOADER
* サーバーからレスポンスされるHTMLに埋め込まれるスクリプトで、以下の役割を持ちます。
* - 翻訳ファイルをフェッチする。
* - バージョンに基づいて適切なメインスクリプトを読み込む。
* - キャッシュされたコンパイル済みテーマを適用する。
* - クライアントの設定値に基づいて対応するHTMLクラス等を設定する。
* テーマをこの段階で設定するのは、メインスクリプトが読み込まれる間もテーマを適用したいためです。
* 注: webpackは介さないため、このファイルではrequireやimportは使えません。
*/
'use strict';
// ブロックの中に入れないと、定義した変数がブラウザのグローバルスコープに登録されてしまい邪魔なので
(async () => {
window.onerror = (e) => {
console.error(e);
renderError('SOMETHING_HAPPENED', e);
};
window.onunhandledrejection = (e) => {
console.error(e);
renderError('SOMETHING_HAPPENED_IN_PROMISE', e);
};
let forceError = localStorage.getItem('forceError');
if (forceError != null) {
renderError('FORCED_ERROR', 'This error is forced by having forceError in local storage.')
}
//#region Detect language & fetch translations
if (!localStorage.hasOwnProperty('locale')) {
const supportedLangs = LANGS;
let lang = localStorage.getItem('lang');
if (lang == null || !supportedLangs.includes(lang)) {
if (supportedLangs.includes(navigator.language)) {
lang = navigator.language;
} else {
lang = supportedLangs.find(x => x.split('-')[0] === navigator.language);
// Fallback
if (lang == null) lang = 'en-US';
}
}
const metaRes = await window.fetch('/api/meta', {
method: 'POST',
body: JSON.stringify({}),
credentials: 'omit',
cache: 'no-cache',
headers: {
'Content-Type': 'application/json',
},
});
if (metaRes.status !== 200) {
renderError('META_FETCH');
return;
}
const meta = await metaRes.json();
const v = meta.version;
if (v == null) {
renderError('META_FETCH_V');
return;
}
// for https://github.com/misskey-dev/misskey/issues/10202
if (lang == null || lang.toString == null || lang.toString() === 'null') {
console.error('invalid lang value detected!!!', typeof lang, lang);
lang = 'en-US';
}
const localRes = await window.fetch(`/assets/locales/${lang}.${v}.json`);
if (localRes.status === 200) {
localStorage.setItem('lang', lang);
localStorage.setItem('locale', await localRes.text());
localStorage.setItem('localeVersion', v);
} else {
renderError('LOCALE_FETCH');
return;
}
}
//#endregion
//#region Script
function importAppScript() {
import(`/vite/${CLIENT_ENTRY}`)
.catch(async e => {
console.error(e);
renderError('APP_IMPORT', e);
});
}
// タイミングによっては、この時点でDOMの構築が済んでいる場合とそうでない場合とがある
if (document.readyState !== 'loading') {
importAppScript();
} else {
window.addEventListener('DOMContentLoaded', () => {
importAppScript();
});
}
//#endregion
//#region Theme
const theme = localStorage.getItem('theme');
if (theme) {
for (const [k, v] of Object.entries(JSON.parse(theme))) {
document.documentElement.style.setProperty(`--${k}`, v.toString());
// HTMLの theme-color 適用
if (k === 'htmlThemeColor') {
for (const tag of document.head.children) {
if (tag.tagName === 'META' && tag.getAttribute('name') === 'theme-color') {
tag.setAttribute('content', v);
break;
}
}
}
}
}
const colorSchema = localStorage.getItem('colorSchema');
if (colorSchema) {
document.documentElement.style.setProperty('color-schema', colorSchema);
}
//#endregion
const fontSize = localStorage.getItem('fontSize');
if (fontSize) {
document.documentElement.classList.add('f-' + fontSize);
}
const useSystemFont = localStorage.getItem('useSystemFont');
if (useSystemFont) {
document.documentElement.classList.add('useSystemFont');
}
const wallpaper = localStorage.getItem('wallpaper');
if (wallpaper) {
document.documentElement.style.backgroundImage = `url(${wallpaper})`;
}
const customCss = localStorage.getItem('customCss');
if (customCss && customCss.length > 0) {
const style = document.createElement('style');
style.innerHTML = customCss;
document.head.appendChild(style);
}
async function addStyle(styleText) {
let css = document.createElement('style');
css.appendChild(document.createTextNode(styleText));
document.head.appendChild(css);
}
function renderError(code, details) {
let errorsElement = document.getElementById('errors');
if (!errorsElement) {
document.body.innerHTML = `
<svg class="icon-warning" xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-alert-triangle" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
<path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
<path d="M12 9v2m0 4v.01"></path>
<path d="M5 19h14a2 2 0 0 0 1.84 -2.75l-7.1 -12.25a2 2 0 0 0 -3.5 0l-7.1 12.25a2 2 0 0 0 1.75 2.75"></path>
</svg>
<h1>An error has occurred!</h1>
<button class="button-big" onclick="location.reload();">
<span class="button-label-big">Refresh</span>
</button>
<p class="dont-worry">Don't worry, it's (probably) not your fault.</p>
<p>If the problem persists after refreshing, please contact your instance's administrator.<br>You may also try the following options:</p>
<p>Update your os and browser.</p>
<p>Disable an adblocker.</p>
<a href="/flush">
<button class="button-small">
<span class="button-label-small">Clear preferences and cache</span>
</button>
</a>
<br>
<a href="/cli">
<button class="button-small">
<span class="button-label-small">Start the simple client</span>
</button>
</a>
<br>
<a href="/bios">
<button class="button-small">
<span class="button-label-small">Start the repair tool</span>
</button>
</a>
<br>
<div id="errors"></div>
`;
errorsElement = document.getElementById('errors');
}
const detailsElement = document.createElement('details');
detailsElement.innerHTML = `
<br>
<summary>
<code>ERROR CODE: ${code}</code>
</summary>
<code>${JSON.stringify(details)}</code>`;
errorsElement.appendChild(detailsElement);
addStyle(`
* {
font-family: BIZ UDGothic, Roboto, HelveticaNeue, Arial, sans-serif;
}
#misskey_app,
#splash {
display: none !important;
}
body,
html {
background-color: #222;
color: #dfddcc;
justify-content: center;
margin: auto;
padding: 10px;
text-align: center;
}
button {
border-radius: 999px;
padding: 0px 12px 0px 12px;
border: none;
cursor: pointer;
margin-bottom: 12px;
}
.button-big {
background: linear-gradient(90deg, rgb(134, 179, 0), rgb(74, 179, 0));
line-height: 50px;
}
.button-big:hover {
background: rgb(153, 204, 0);
}
.button-small {
background: #444;
line-height: 40px;
}
.button-small:hover {
background: #555;
}
.button-label-big {
color: #222;
font-weight: bold;
font-size: 20px;
padding: 12px;
}
.button-label-small {
color: rgb(153, 204, 0);
font-size: 16px;
padding: 12px;
}
a {
color: rgb(134, 179, 0);
text-decoration: none;
}
p,
li {
font-size: 16px;
}
.dont-worry,
#msg {
font-size: 18px;
}
.icon-warning {
color: #dec340;
height: 4rem;
padding-top: 2rem;
}
h1 {
font-size: 32px;
}
code {
font-family: Fira, FiraCode, monospace;
}
details {
background: #333;
margin-bottom: 2rem;
padding: 0.5rem 1rem;
width: 40rem;
border-radius: 10px;
justify-content: center;
margin: auto;
}
summary {
cursor: pointer;
}
summary > * {
display: inline;
}
@media screen and (max-width: 500px) {
details {
width: 50%;
}
`)
}
})();