74 lines
2.1 KiB
JavaScript
74 lines
2.1 KiB
JavaScript
addEventListener('fetch', event => {
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let response = handleRequest(event.request);
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const origin = event.request.headers.get('Origin');
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if ([
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'http://localhost',
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'https://akarin.dev',
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'https://transparentlc.github.io',
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// Add other mirrors
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].includes(origin)) {
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response = response.then(e => {
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e.headers.set('Access-Control-Allow-Origin', origin);
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return e;
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});
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}
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event.respondWith(response);
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});
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/**
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* Respond to the request
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* @param {Request} request
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*/
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async function handleRequest(request) {
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const result = {
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success: false,
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title: '',
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cover: '',
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};
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const responseConfig = {
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status: 200,
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headers: {
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'Content-Type': 'application/json',
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},
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}
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const articleURL = new URL(request.url).searchParams.get('url');
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try {
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if (!articleURL || !articleURL.startsWith('https://mp.weixin.qq.com')) throw new Error('Invalid URL');
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const articleContent = await fetch(articleURL).then(res => res.text());
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const match = articleContent.match(
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/var msg_title = \'(?<title>[\S\s]*?)\'.html\(false\);[\S\s]*?var msg_cdn_url = "(?<cover>[\S\s]*?)";/
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);
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if (!match) throw new Error('Unable to match content');
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result.title = match.groups.title;
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for (const [k, v] of Object.entries({
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'`': '`',
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''': '\'',
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'"': '"',
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' ': ' ',
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'>': '>',
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'<': '<',
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'¥': '¥',
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'&': '&',
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})) result.title = result.title.replace(new RegExp(k, 'g'), v);
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result.cover = new URL('https://images.weserv.nl');
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for (const [k, v] of Object.entries({
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url: match.groups.cover,
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il: '',
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we: '',
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h: 360,
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q: 70,
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})) result.cover.searchParams.set(k, v);
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result.cover = result.cover.toString();
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result.success = true;
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} catch (error) {
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console.log(error);
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}
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return new Response(JSON.stringify(result), responseConfig);
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} |