73 lines
2.4 KiB
Java
73 lines
2.4 KiB
Java
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package org.openautonomousconnection.webserver.utils;
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import java.nio.charset.StandardCharsets;
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/**
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* Small HTML helpers for server-side rendering.
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*/
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public final class Html {
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private Html() {}
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/**
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* Escapes text for HTML.
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*
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* @param s input
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* @return escaped
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*/
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public static String esc(String s) {
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if (s == null) return "";
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return s.replace("&", "&")
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.replace("<", "<")
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.replace(">", ">")
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.replace("\"", """);
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}
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/**
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* Encodes to UTF-8 bytes.
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*
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* @param html html
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* @return bytes
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*/
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public static byte[] utf8(String html) {
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return (html == null ? "" : html).getBytes(StandardCharsets.UTF_8);
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}
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/**
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* Simple page wrapper.
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*
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* @param title title
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* @param body body html
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* @return full html
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*/
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public static String page(String title, String body) {
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return """
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>%s</title>
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<style>
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body{font-family:system-ui,Segoe UI,Arial,sans-serif;background:#0f111a;color:#e5e7eb;margin:0;padding:24px;}
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a{color:#60a5fa;text-decoration:none} a:hover{text-decoration:underline}
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.card{background:#111827;border:1px solid #1f2937;border-radius:12px;padding:16px;max-width:900px}
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input,select{background:#0b1220;color:#e5e7eb;border:1px solid #243042;border-radius:8px;padding:10px;width:100%%;box-sizing:border-box}
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button{background:#2563eb;color:white;border:none;border-radius:8px;padding:10px 14px;cursor:pointer}
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button:hover{filter:brightness(1.05)}
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.row{display:flex;gap:12px;flex-wrap:wrap}
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.col{flex:1;min-width:220px}
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.muted{color:#94a3b8}
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.err{color:#fca5a5}
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.ok{color:#86efac}
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code{background:#0b1220;padding:2px 6px;border-radius:6px}
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</style>
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</head>
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<body>
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%s
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</body>
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</html>
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""".formatted(esc(title), body == null ? "" : body);
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}
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}
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