48 lines
1009 B
TypeScript
48 lines
1009 B
TypeScript
import urlMetadata from 'url-metadata';
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function fallbackFavicon(url: string) {
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return `https://www.google.com/s2/favicons?domain=${url}&sz=256`;
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}
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function findBestFavicon(favicons: UrlMetaData['favicons']) {
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const match = favicons.find(
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(favicon) =>
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favicon.rel === 'shortcut icon' ||
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favicon.rel === 'icon' ||
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favicon.rel === 'apple-touch-icon',
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);
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if (match) {
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return match.href;
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}
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return null;
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}
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function transform(data: UrlMetaData, url: string) {
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const favicon = findBestFavicon(data.favicons);
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return {
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favicon: favicon ? new URL(favicon, url).toString() : fallbackFavicon(url),
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};
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}
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interface UrlMetaData {
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favicons: {
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rel: string;
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href: string;
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sizes: string;
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}[];
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}
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export async function parseUrlMeta(url: string) {
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try {
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const metadata = (await urlMetadata(url)) as UrlMetaData;
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const data = transform(metadata, url);
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return data;
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} catch (err) {
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return {
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favicon: fallbackFavicon(url),
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};
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}
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}
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