81 lines
3.7 KiB
JavaScript
81 lines
3.7 KiB
JavaScript
const got = require('@/utils/got');
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const utils = require('./utils');
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const md5 = require('@/utils/md5');
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const g_encrypt = require('./execlib/g_encrypt');
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const { parseDate } = require('@/utils/parse-date');
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module.exports = async (ctx) => {
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const {
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questionId,
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sortBy = 'default', // default,created,updated
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} = ctx.params;
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// Because the API of zhihu.com has changed, we must use the value of `d_c0` (extracted from cookies) to calculate
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// `x-zse-96`. So first get `d_c0`, then get the actual data of a ZhiHu question. In this way, we don't need to
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// require users to set the cookie in environmental variables anymore.
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// fisrt: get cookie(dc_0) from zhihu.com
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const cookie_mes = await ctx.cache.tryGet('zhihu:cookies:d_c0', async () => {
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const response = await got({
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method: 'get',
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url: `https://www.zhihu.com/question/${questionId}`,
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headers: {
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...utils.header,
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},
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});
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const cookie_org = response.headers['set-cookie'];
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const cookie = cookie_org.toString();
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const match = cookie.match(/d_c0=(\S+?)(?:;|$)/);
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const cookie_mes = match && match[1];
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if (!cookie_mes) {
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throw Error('Failed to extract `d_c0` from cookies');
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}
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return cookie_mes;
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});
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const cookie = `d_c0=${cookie_mes}`;
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// second: get real data from zhihu
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const limit = 20;
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const include =
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'data%5B*%5D.is_normal%2Cadmin_closed_comment%2Creward_info%2Cis_collapsed%2Cannotation_action%2Cannotation_detail%2Ccollapse_reason%2Cis_sticky%2Ccollapsed_by%2Csuggest_edit%2Ccomment_count%2Ccan_comment%2Ccontent%2Ceditable_content%2Cattachment%2Cvoteup_count%2Creshipment_settings%2Ccomment_permission%2Ccreated_time%2Cupdated_time%2Creview_info%2Crelevant_info%2Cquestion%2Cexcerpt%2Cis_labeled%2Cpaid_info%2Cpaid_info_content%2Crelationship.is_authorized%2Cis_author%2Cvoting%2Cis_thanked%2Cis_nothelp%2Cis_recognized%3Bdata%5B*%5D.mark_infos%5B*%5D.url%3Bdata%5B*%5D.author.follower_count%2Cbadge%5B*%5D.topics%3Bdata%5B*%5D.settings.table_of_content.enabled&offset=0';
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const rootUrl = 'https://www.zhihu.com';
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const apiPath = `/api/v4/questions/${questionId}/answers?include=${include}&limit=${limit}&sort_by=${sortBy}&platform=desktop`;
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const url = rootUrl + apiPath;
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// calculate x-zse-96, refer to https://github.com/srx-2000/spider_collection/issues/18
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const f = `101_3_2.0+${apiPath}+${cookie_mes}`;
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const xzse96 = '2.0_' + g_encrypt(md5(f));
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const _header = { cookie, 'x-zse-96': xzse96, 'x-app-za': 'OS=Web', 'x-zse-93': '101_3_2.0' };
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const response = await got({
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method: 'get',
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url,
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headers: {
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...utils.header,
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..._header,
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Referer: `https://www.zhihu.com/question/${questionId}`,
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// Authorization: 'oauth c3cef7c66a1843f8b3a9e6a1e3160e20', // previously hard-coded in js, outdated
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},
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});
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const listRes = response.data.data;
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ctx.state.data = {
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title: `知乎-${listRes[0].question.title}`,
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link: `https://www.zhihu.com/question/${questionId}`,
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item: listRes.map((item) => {
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const title = `${item.author.name}的回答：${item.excerpt}`;
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const description = `${item.author.name}的回答<br/><br/>${utils.ProcessImage(item.content)}`;
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return {
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title,
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description,
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author: item.author.name,
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pubDate: parseDate(item.updated_time * 1000),
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guid: item.id.toString(),
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link: `https://www.zhihu.com/question/${questionId}/answer/${item.id}`,
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};
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}),
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};
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};
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