67 lines
2.6 KiB
JavaScript
67 lines
2.6 KiB
JavaScript
const cheerio = require('cheerio');
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const got = require('@/utils/got');
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/**
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* 获取最新的帖子回复（倒序查看）
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*
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* @param {*} id 帖子ID
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* @param {number} [lz=0] 是否只看楼主（0: 查看全部, 1: 只看楼主）
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* @param {number} [pn=7e6] 帖子最大页码（默认假设为 7e6，如果超出假设则根据返回的最大页码再请求一次，否则可以节省一次请求）
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* 这个默认值我测试下来 7e6 是比较接近最大值了，因为当我输入 8e6 就会返回第一页的数据而不是最后一页了
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* @returns
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*/
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async function getPost(id, lz = 0, pn = 7e6) {
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const { data } = await got({
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method: 'get',
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url: `https://tieba.baidu.com/p/${id}?see_lz=${lz}&pn=${pn}&ajax=1`,
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headers: {
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Referer: 'https://tieba.baidu.com/',
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},
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});
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const $ = cheerio.load(data);
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const max = Number.parseInt($('[max-page]').attr('max-page'));
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if (max > pn) {
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return getPost(id, max);
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}
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return data;
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}
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module.exports = async (ctx) => {
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const { id } = ctx.params;
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const lz = ctx._matchedRoute.includes('lz') ? 1 : 0;
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const html = await getPost(id, lz);
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const $ = cheerio.load(html);
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const title = $('.core_title_txt').attr('title');
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// .substr(3);
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const list = $('.p_postlist > [data-field]:not(:has(".ad_bottom_view"))');
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ctx.state.data = {
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title: lz ? `【只看楼主】${title}` : title,
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link: `https://tieba.baidu.com/p/${id}?see_lz=${lz}`,
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description: `${title}的最新回复`,
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item:
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list &&
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list
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.map((index, element) => {
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const item = $(element);
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const { author, content } = item.data('field');
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const [from, num, time] = item
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.find('.post-tail-wrap > .tail-info')
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.map((index, element) => $(element).text())
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.get();
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return {
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title: `${author.user_name}回复了帖子《${title}》`,
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description: [
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`<p>${content.content}</p>`,
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`作者：${author.user_name}`,
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`楼层：${num}`,
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`${from}`
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].join('<br />'), // prettier-ignore
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pubDate: new Date(time).toUTCString(),
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link: `https://tieba.baidu.com/p/${id}?pid=${content.post_id}#${content.post_id}`,
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};
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})
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.get(),
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};
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};
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