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// @ts-nocheck
import cheerio from "cheerio";
export async function unfurl(url: string) {
const response = await fetch(url);
if (response.status >= 400) {
throw new Error(`Error fetching url: ${response.status}`);
}
const contentType = response.headers.get("content-type");
if (!contentType?.includes("text/html")) {
throw new Error(`Content-type not right: ${contentType}`);
}
const content = await response.text();
const $ = cheerio.load(content);
const og: { [key: string]: string | undefined } = {};
const twitter: { [key: string]: string | undefined } = {};
// @ts-ignore trust
$("meta[property^=og:]").each(
(_, el) => (og[$(el).attr("property")!] = $(el).attr("content")),
);
// @ts-ignore trust
$("meta[name^=twitter:]").each(
(_, el) => (twitter[$(el).attr("name")!] = $(el).attr("content")),
);
const title =
og["og:title"] ??
twitter["twitter:title"] ??
$("title").text() ??
undefined;
const description =
og["og:description"] ??
twitter["twitter:description"] ??
$('meta[name="description"]').attr("content") ??
undefined;
const image =
og["og:image:secure_url"] ??
og["og:image"] ??
twitter["twitter:image"] ??
undefined;
const favicon =
$('link[rel="apple-touch-icon"]').attr("href") ??
$('link[rel="icon"]').attr("href") ??
undefined;
return {
title,
description,
image,
favicon,
};
}
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