egirlskey/packages/backend/src/server/web/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
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* - キャッシュされたコンパイル済みテーマを適用する
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* - 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
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* : 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 () => {
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window.onerror = (e) => {
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console.error(e);
renderError('SOMETHING_HAPPENED', e);
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};
window.onunhandledrejection = (e) => {
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console.error(e);
renderError('SOMETHING_HAPPENED_IN_PROMISE', e);
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};
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
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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';
}
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}
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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;
}
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const meta = await metaRes.json();
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const v = meta.version;
if (v == null) {
renderError('META_FETCH_V');
return;
}
// for https://github.com/misskey-dev/misskey/issues/10202
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if (lang == null || lang.toString == null || lang.toString() === 'null') {
console.error('invalid lang value detected!!!', typeof lang, lang);
lang = 'en-US';
}
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const localRes = await window.fetch(`/assets/locales/${lang}.${v}.json`);
if (localRes.status === 200) {
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localStorage.setItem('lang', lang);
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localStorage.setItem('locale', await localRes.text());
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localStorage.setItem('localeVersion', v);
} else {
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renderError('LOCALE_FETCH');
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return;
}
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}
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//#endregion
//#region Script
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function importAppScript() {
import(`/vite/${CLIENT_ENTRY}`)
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.catch(async e => {
console.error(e);
renderError('APP_IMPORT', e);
});
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}
// タイミングによっては、この時点でDOMの構築が済んでいる場合とそうでない場合とがある
if (document.readyState !== 'loading') {
importAppScript();
} else {
window.addEventListener('DOMContentLoaded', () => {
importAppScript();
});
}
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//#endregion
//#region Theme
const theme = localStorage.getItem('theme');
if (theme) {
for (const [k, v] of Object.entries(JSON.parse(theme))) {
document.documentElement.style.setProperty(`--${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;
}
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}
}
}
}
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const colorScheme = localStorage.getItem('colorScheme');
if (colorScheme) {
document.documentElement.style.setProperty('color-scheme', colorScheme);
}
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//#endregion
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const fontSize = localStorage.getItem('fontSize');
if (fontSize) {
document.documentElement.classList.add('f-' + fontSize);
}
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const useSystemFont = localStorage.getItem('useSystemFont');
if (useSystemFont) {
document.documentElement.classList.add('useSystemFont');
}
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const wallpaper = localStorage.getItem('wallpaper');
if (wallpaper) {
document.documentElement.style.backgroundImage = `url(${wallpaper})`;
}
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const customCss = localStorage.getItem('customCss');
if (customCss && customCss.length > 0) {
const style = document.createElement('style');
style.innerHTML = customCss;
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document.head.appendChild(style);
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}
async function addStyle(styleText) {
let css = document.createElement('style');
css.appendChild(document.createTextNode(styleText));
document.head.appendChild(css);
}
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function renderError(code, details) {
let errorsElement = document.getElementById('errors');
if (!errorsElement) {
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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">
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<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>
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<h1>Failed to load<br>読み込みに失敗しました</h1>
<button class="button-big" onclick="location.reload(true);">
<span class="button-label-big">Reload / リロード</span>
</button>
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<p><b>The following actions may solve the problem. / 以下を行うと解決する可能性があります</b></p>
<p>Clear the browser cache / ブラウザのキャッシュをクリアする</p>
<p>Update your os and browser / ブラウザおよびOSを最新バージョンに更新する</p>
<p>Disable an adblocker / アドブロッカーを無効にする</p>
<details style="color: #86b300;">
<summary>Other options / その他のオプション</summary>
<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>
</details>
<br>
<div id="errors"></div>
`;
errorsElement = document.getElementById('errors');
}
const detailsElement = document.createElement('details');
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detailsElement.id = 'errorInfo';
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;
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font-size: 1.2em;
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;
}
.icon-warning {
color: #dec340;
height: 4rem;
padding-top: 2rem;
}
h1 {
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font-size: 1.5em;
margin: 1em;
}
code {
font-family: Fira, FiraCode, monospace;
}
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#errorInfo {
background: #333;
margin-bottom: 2rem;
padding: 0.5rem 1rem;
width: 40rem;
border-radius: 10px;
justify-content: center;
margin: auto;
}
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#errorInfo summary {
cursor: pointer;
}
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#errorInfo summary > * {
display: inline;
}
@media screen and (max-width: 500px) {
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#errorInfo {
width: 50%;
}
`)
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}
})();