59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
const cheerio = require('cheerio');
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const got = require('@/utils/got');
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module.exports = async (ctx) => {
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const baseUrl = `https://www.pnas.org`;
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const url = `${baseUrl}/content/by/section/${ctx.params.tid}`;
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const res = await got.get(url);
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const $ = cheerio.load(res.data);
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const list = $('.highwire-citation-pnas-list-complete').get();
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const out = await Promise.all(
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list.map(async (item) => {
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const $ = cheerio.load(item);
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const title = $('.highwire-cite-title').text();
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const partial = $('.highwire-cite-linked-title').attr('href');
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const address = `${baseUrl}${partial}`;
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const time = $('time').text();
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let author;
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if ($('.highwire-citation-authors span').length > 3) {
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author = $('.highwire-citation-author.first').text() + ' et al.';
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} else {
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author = $('.highwire-citation-authors span').text();
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}
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const cache = await ctx.cache.get(address);
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if (cache) {
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return Promise.resolve(JSON.parse(cache));
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}
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const res = await got.get(address);
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const capture = cheerio.load(res.data);
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const significance = capture('.executive-summary').html();
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const abstract = capture('.section.abstract').html();
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let contents;
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if (abstract !== null) {
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contents = significance + abstract;
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} else {
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contents = significance;
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}
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const single = {
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title,
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author: author,
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description: contents,
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link: address,
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guid: address,
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pubDate: new Date(time).toUTCString(),
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};
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ctx.cache.set(address, JSON.stringify(single));
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return Promise.resolve(single);
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})
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);
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ctx.state.data = {
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title: `PNAS | ${ctx.params.tid}`,
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link: url,
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item: out,
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};
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};
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