76 lines
1.9 KiB
JavaScript
76 lines
1.9 KiB
JavaScript
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import * as cheerio from 'cheerio';
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const readStdIn = () => {
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return new Promise((resolve, reject) => {
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let stdIn = '';
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process.stdin.on('data', data => stdIn += data);
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process.stdin.on('end', () => resolve(stdIn));
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process.stdin.on('error', err => reject(err));
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});
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};
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const $ = cheerio.load(await readStdIn());
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const info = {
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title: '',
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metaTitle: '',
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desc: '',
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siteName: '',
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image: '',
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colour: '',
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type: 'website',
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};
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const titleTag = $('title').first();
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if(titleTag.length > 0)
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info.title = titleTag.text().trim();
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const metaTags = $('meta');
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for(const elemInfo of metaTags) {
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const elem = $(elemInfo);
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const nameAttr = (elem.attr('name') ?? elem.attr('property') ?? '').trim();
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if(nameAttr === '')
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continue;
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const valueAttr = (elem.attr('value') ?? elem.attr('content') ?? '').trim();
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switch(nameAttr) {
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case 'og:title':
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case 'twitter:title':
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if(info.metaTitle === '' || valueAttr.length > info.metaTitle.length)
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info.metaTitle = valueAttr;
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break;
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case 'description':
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case 'og:description':
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case 'twitter:description':
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if(info.desc === '' || valueAttr.length > info.desc.length)
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info.desc = valueAttr;
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break;
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case 'og:site_name':
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if(info.siteName === '')
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info.siteName = valueAttr;
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break;
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case 'og:image':
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case 'twitter:image':
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if(info.image === '')
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info.image = valueAttr;
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break;
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case 'theme-color':
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if(info.colour === '')
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info.colour = valueAttr;
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break;
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case 'og:type':
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if(info.type === '')
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info.type = `website:${valueAttr}`;
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break;
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}
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}
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console.log(JSON.stringify(info));
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