root/404.main.html at master · jcempro/root · GitHub

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<!DOCTYPE html>
<html lang="pt-br">
	<head>
		<meta charset="UTF-8" />
		<meta
			name="viewport"
			content="width=device-width, initial-scale=1"
		/>
		<meta name="robots" content="noindex" />
		<noscript>
			<meta http-equiv="refresh" content="0; url=/NOSCRIPT.html" />
		</noscript>
		<title>Redirecting...</title>

		<script>
			(async (L, w) => {
				/* redireciona tudo de '/radio/' para outro dominio sem tratar*/
				if (/^\/radio(\/|$)/i.test(L.pathname)) {
					const to = /\.github\.io\/?/i.test(L.hostname)
						? 'jcem-radio.github.io'
						: 'radioamador.jcem.pro';

					L.href = `https://${to}${L.pathname.split('/radio')[1]}${
						L.search
					}${L.hash}`;
				}

				/* normalização de URLs (ou canonicalização), que reduz diferentes representações equivalentes a uma forma única e estável.
				 * A ideia é tratar URLs como equivalentes quando só variam em detalhes irrelevantes (ex: http ↔ https, / no final, #, etc.).
				 */
				const normUrl = (u) => {
					const x = new URL(u, L.origin);
					let p = x.pathname.replace(/\/+$/, '') || '/';
					const s = /^(https?|wss?)$/.test(
						x.protocol.replace(':', ''),
					);
					return (
						(s ? '' : x.protocol + '//') +
						x.hostname.toLowerCase() +
						(x.port && !/^(80|443)$/.test(x.port)
							? ':' + x.port
							: '') +
						p +
						(x.search || '')
					);
				};

				const isInt = (v) =>
					Number.isInteger(v) ||
					(typeof v === 'string' && /^[+-]?\d+$/.test(v));

				const GO = async (t, flbk) => {
					const p = (L.pathname + L.search).replace(
						/^\/\s*404\.html(\/|\?)/gi,
						'/',
					);
					if (/\/[^/]*\.[^/]*$/.test(p)) throw 4;
					try {
						const r = await fetch(
							p.replace(/(\/?[^\/]*\/?)$/, '/') + 'data.json',
						);
						if (!r.ok) throw 1;
						const j = await r.json().catch(() => {
							throw 2;
						});
						const u = j?.[0];
						new URL(u); // lança se inválida
						if (
							Array.isArray(j) &&
							j.length == 1 &&
							typeof u == 'string'
						)
							L.href = u;
						else throw 3;
					} catch (e) {
						flbk(e, isInt(t) ? t + 1 : 1);
					}
				};

				const STP2 = (e) => {
					throw e;
				};

				GO(0, STP2);
			})(window.location, window);
		</script>

		<style>
			:root {
				--blue: #c08282;
				--blue2: #2b92db;
				--amber: #cc4c1e;
				--bg: #ebebeb;
				--text: #222;
				--radius: 1rem;
			}

			* {
				box-sizing: border-box;
				font-family: 'Noto Sans', 'Segoe UI', 'Tahoma', sans-serif;
				color: var(--text);
			}

			html,
			body {
				margin: 0;
				padding: 0;
				background: var(--bg);
				height: 100%;
				display: flex;
				align-items: center;
				justify-content: center;
			}

			/* Loader top bar */
			.loader-bar {
				position: fixed;
				top: 0;
				left: 0;
				width: 100%;
				height: 0.7rem;
				background: linear-gradient(
					90deg,
					var(--blue2) 0%,
					var(--blue2) 50%,
					transparent 100%
				);
				background-size: 200% 100%;
				animation: loading 1s linear infinite;
				z-index: 9999;
				border-bottom: 1px solid #eee;
			}

			@keyframes loading {
				0% {
					background-position: 200% 0;
				}
				100% {
					background-position: -200% 0;
				}
			}
		</style>
	</head>

	<body>
		<!-- Loader top bar -->
		<div class="loader-bar"></div>

		<noscript>
			<main>
				<h1><span>⚠️</span>Problem / Problema / 问题</h1>

				<div class="lang">
					<h2>🇺🇸 English</h2>
					<p>
						<span>⚠️</span><strong>JavaScript is disabled.</strong
						><br />
						This prevents automatic redirection to your destination.
					</p>
				</div>

				<div class="lang">
					<h2>🇧🇷 Português</h2>
					<p>
						<span>⚠️</span
						><strong>O JavaScript está desativado.</strong><br />
						Isso impede o redirecionamento automático para o destino.
					</p>
				</div>

				<div class="lang">
					<h2>🇪🇸 Español</h2>
					<p>
						<span>⚠️</span
						><strong>JavaScript está deshabilitado.</strong><br />
						Esto impide la redirección automática al destino.
					</p>
				</div>

				<div class="lang">
					<h2>🇨🇳 中文（普通话）</h2>
					<p>
						<span>⚠️</span><strong>JavaScript 已被禁用。</strong
						><br />
						这会阻止自动跳转到目标页面。
					</p>
				</div>
			</main>
		</noscript>
	</body>
</html>