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Handle errors in metadata
This commit is contained in:
Nicholas Jitkoff
parent
a019b03b74
commit
f2598ef8df
1 changed files with 57 additions and 53 deletions
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@ -18,64 +18,68 @@ function pathToMetadata(path) {
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}
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export default async (request, context) => {
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const ua = request.headers.get("user-agent");
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let url = new URL(request.url);
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let path = url.pathname;
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let geo = context?.geo?.city + ", " + context?.geo?.subdivision?.code + ", " + context?.geo?.country?.code
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try {
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const ua = request.headers.get("user-agent");
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let url = new URL(request.url);
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let path = url.pathname;
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let geo = context?.geo?.city + ", " + context?.geo?.subdivision?.code + ", " + context?.geo?.country?.code
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let uaArray = Deno.env.get("UA_ARRAY")?.split(",") || [];
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let uaMatch = uaArray.some(a => ua.indexOf(a) != -1);
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let uaArray = Deno.env.get("UA_ARRAY")?.split(",") || [];
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let uaMatch = uaArray.some(a => ua.indexOf(a) != -1);
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if (uaMatch) {
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//console.log("Redirecting legacy client", )
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return new Response('', { status: 401 });
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}
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if (path != "/" ) {
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// context.log(path, request.headers, geo);
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let metadataBots = [ "Twitterbot", "curl", "facebookexternalhit", "Slackbot-LinkExpanding", "Discordbot", "snapchat"]
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let isMetadataBot = metadataBots.some(bot => ua.indexOf(bot) != -1);
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if (uaMatch) {
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//console.log("Redirecting legacy client", )
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return new Response('', { status: 401 });
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}
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if (path != "/" ) {
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// context.log(path, request.headers, geo);
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let metadataBots = [ "Twitterbot", "curl", "facebookexternalhit", "Slackbot-LinkExpanding", "Discordbot", "snapchat"]
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let isMetadataBot = metadataBots.some(bot => ua.indexOf(bot) != -1);
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if (isMetadataBot && path.endsWith("/")) {
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let info = pathToMetadata(path)
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if (isMetadataBot && path.endsWith("/")) {
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let info = pathToMetadata(path)
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let content = ['<meta charset="UTF-8">'];
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if (info.title) { content.push(`<title>${info.title}</title>`,`<meta property="og:title" content="${info.title}"/>`); }
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if (info.s) { content.push(`<meta property="og:site_name" content="${info.s}"/>`); }
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if (info.t) { content.push(`<meta property="og:type" content="${info.t}"/>`); }
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if (info.d) { content.push(`<meta property="og:description" content="${info.d}"/>`,`<meta name="description" content="${info.d}"/>`); }
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if (info.i) {
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if (!info.i.startsWith("http")) info.i = atob(info.i.replace(/=/g,''));
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content.push(`<meta property="og:image" content="${info.i}"/>`);
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content.push(`<meta name="twitter:card" content="summary_large_image">`);
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if (info.iw) content.push(`<meta property="og:image:width" content="${info.iw}"/>`);
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if (info.ih) content.push(`<meta property="og:image:width" content="${info.ih}"/>`);
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}
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if (info.c) { content.push(`<meta name="theme-color" content="#${info.c}"/>`); }
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if (info.v) {
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if (!info.v.startsWith("http")) info.v = atob(info.v.replace(/=/g,''));
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content.push(`<meta property="og:video" content="${info.v}"/>`);
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if (info.vw) content.push(`<meta property="og:image:width" content="${info.vw}"/>`);
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if (info.vh) content.push(`<meta property="og:image:width" content="${info.vh}"/>`);
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}
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if (info.f) {
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if (info.f.length > 9){
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if (!info.f.startsWith("http")) info.f = atob(info.f.replace(/=/g,''));
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content.push(`<link rel="icon" type="image/png" href="${info.f}">`);
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} else {
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let codepoints = Array.from(info.f).map(c => c.codePointAt(0).toString(16));
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content.push(`<link rel="icon" type="image/png" href="https://fonts.gstatic.com/s/e/notoemoji/14.0/${codepoints.join("_")}/128.png">`);
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let content = ['<meta charset="UTF-8">'];
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if (info.title) { content.push(`<title>${info.title}</title>`,`<meta property="og:title" content="${info.title}"/>`); }
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if (info.s) { content.push(`<meta property="og:site_name" content="${info.s}"/>`); }
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if (info.t) { content.push(`<meta property="og:type" content="${info.t}"/>`); }
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if (info.d) { content.push(`<meta property="og:description" content="${info.d}"/>`,`<meta name="description" content="${info.d}"/>`); }
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if (info.i) {
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if (!info.i.startsWith("http")) info.i = atob(info.i.replace(/=/g,''));
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content.push(`<meta property="og:image" content="${info.i}"/>`);
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content.push(`<meta name="twitter:card" content="summary_large_image">`);
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if (info.iw) content.push(`<meta property="og:image:width" content="${info.iw}"/>`);
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if (info.ih) content.push(`<meta property="og:image:width" content="${info.ih}"/>`);
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}
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if (info.c) { content.push(`<meta name="theme-color" content="#${info.c}"/>`); }
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if (info.v) {
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if (!info.v.startsWith("http")) info.v = atob(info.v.replace(/=/g,''));
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content.push(`<meta property="og:video" content="${info.v}"/>`);
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if (info.vw) content.push(`<meta property="og:image:width" content="${info.vw}"/>`);
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if (info.vh) content.push(`<meta property="og:image:width" content="${info.vh}"/>`);
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}
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if (info.f) {
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if (info.f.length > 9){
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if (!info.f.startsWith("http")) info.f = atob(info.f.replace(/=/g,''));
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content.push(`<link rel="icon" type="image/png" href="${info.f}">`);
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} else {
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let codepoints = Array.from(info.f).map(c => c.codePointAt(0).toString(16));
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content.push(`<link rel="icon" type="image/png" href="https://fonts.gstatic.com/s/e/notoemoji/14.0/${codepoints.join("_")}/128.png">`);
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}
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}
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}
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content.push(`<meta property="og:url" content="${request.url}" />`);
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console.log(["Metadata Request", JSON.stringify(info), geo, ua].join('\t'));
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content.push(`<meta property="og:url" content="${request.url}" />`);
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console.log(["Metadata Request", JSON.stringify(info), geo, ua].join('\t'));
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return new Response(content.join("\n"), {
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headers: { "content-type": "text/html" },
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});
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}
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} else {
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console.log(["Request", path, geo, request.headers.get("referer"), ua].join('\t'));
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return new Response(content.join("\n"), {
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headers: { "content-type": "text/html" },
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});
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}
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} else {
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console.log(["Request", path, geo, request.headers.get("referer"), ua].join('\t'));
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}
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} catch (e) {
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console.log("Error:", request.url, e)
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}
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}
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