import type { H3Event } from "h3";
import { getQuery } from "h3";
function esc(s: string): string {
return String(s)
.replace(/&/g, "&")
.replace(/"/g, """)
.replace(//g, ">");
}
/** GET /api/richheader — Open Graph page for Telegram avatar link-preview cards. */
export function handleRichHeader(event: H3Event): string {
const query = getQuery(event);
const title = String(query["title"] ?? "");
const content = String(query["content"] ?? "");
const avatar = String(query["avatar"] ?? "");
return `
${content ? `` : ""}
${avatar ? `` : ""}
${avatar ? `})
` : ""}
${title ? `${esc(title)}
` : ""}
${content ? `${esc(content)}
` : ""}
This page is used for Open Graph meta tags (richheader) only.
`;
}