fix(route/zhihu): Use Web API for zhihu answers (#18550)

Author: dzx-dzx

lib/routes/zhihu/answers.ts

@@ -1,7 +1,6 @@
 import { Route } from '@/types';
-import cache from '@/utils/cache';
 import got from '@/utils/got';
-import { getCookieValueByKey, header, processImage } from './utils';
+import { header, getSignedHeader } from './utils';
 import { parseDate } from '@/utils/parse-date';
 
 export const route: Route = {
@@ -30,66 +29,39 @@ export const route: Route = {
 async function handler(ctx) {
     const id = ctx.req.param('id');
 
-    const zc0 = getCookieValueByKey('z_c0');
+    // second: get real data from zhihu
+    const apiPath = `/api/v4/members/${id}/answers?limit=7&include=data[*].is_normal,content`;
 
-    const headers = {
-        'User-Agent': 'ZhihuHybrid com.zhihu.android/Futureve/6.59.0 Mozilla/5.0 (Linux; Android 10; GM1900 Build/QKQ1.190716.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/85.0.4183.127 Mobile Safari/537.36',
-        Referer: `https://www.zhihu.com/people/${id}/answers`,
-        Cookie: zc0 ? `z_c0=${zc0}` : '',
-    };
+    const signedHeader = await getSignedHeader(`https://www.zhihu.com/people/${id}`, apiPath);
 
-    const response = await got({
-        method: 'get',
-        url: `https://api.zhihu.com/people/${id}/answers?order_by=created&offset=0&limit=10`,
-        headers,
+    const response = await got(`https://www.zhihu.com${apiPath}`, {
+        headers: {
+            ...header,
+            ...signedHeader,
+            Referer: `https://www.zhihu.com/people/${id}/activities`,
+            // Authorization: 'oauth c3cef7c66a1843f8b3a9e6a1e3160e20', // hard-coded in js
+        },
     });
 
     const data = response.data.data;
-    let name = data[0].author.name;
-
-    if (name === '知乎用户') {
-        const userProfile = await cache.tryGet(`zhihu:profile:${id}`, async () => {
-            const apiPath = `/api/v4/members/${id}`;
+    const items = data.map((item) => {
+        const title = item.question.title;
+        // let description = processImage(detail.content);
+        const url = `https://www.zhihu.com/question/${item.question.id}/answer/${item.id}`;
+        const author = item.author.name;
+        const description = item.content;
 
-            const { data } = await got({
-                method: 'get',
-                url: `https://www.zhihu.com${apiPath}`,
-                headers: {
-                    ...header,
-                    Referer: `https://www.zhihu.com/people/${id}`,
-                },
-            });
-            return data;
-        });
-        name = userProfile.name;
-    }
-
-    const items = await Promise.all(
-        data.map(async (item) => {
-            let description;
-            const link = `https://www.zhihu.com/question/${item.question.id}/answer/${item.id}`;
-            const title = item.question.title;
-            try {
-                const detail = await got({
-                    method: 'get',
-                    url: `https://api.zhihu.com/appview/api/v4/answers/${item.id}?include=content&is_appview=true`,
-                    headers,
-                });
-                description = processImage(detail.data.content);
-            } catch {
-                description = `<a href="${link}" target="_blank">${title}</a>`;
-            }
-            return {
-                title,
-                description,
-                pubDate: parseDate(item.created_time * 1000),
-                link,
-            };
-        })
-    );
+        return {
+            title,
+            author,
+            description,
+            pubDate: parseDate(item.created_time * 1000),
+            link: url,
+        };
+    });
 
     return {
-        title: `${name}的知乎回答`,
+        title: `${data[0].author.name}的知乎回答`,
         link: `https://www.zhihu.com/people/${id}/answers`,
         item: items,
     };