support zhihu answer

websites/zhihu_answer.js

@@ -0,0 +1,36 @@
+let { URL } = require('url')
+let fetch = require('node-fetch')
+let { JSDOM } = require('jsdom')
+
+module.exports = {
+  test(url) {
+    let parsed = new URL(url)
+    return parsed.hostname == 'www.zhihu.com'
+  },
+
+  async process(url) {
+    let res = await fetch(url, {
+      headers: {
+        'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:74.0) Gecko/20100101 Firefox/74.0'
+      }
+    })
+    let html = await res.text()
+    let document = new JSDOM(html).window.document
+
+    let title = document.querySelector('h1.QuestionHeader-title').textContent
+    let author = document.querySelector('.AnswerCard meta[itemProp="name"]').content
+    let content = document.querySelector('.AnswerCard .RichContent-inner')
+
+    return {
+      title,
+      author,
+      dom: content
+    }
+
+  },
+
+  samples: [
+    'https://www.zhihu.com/question/32059030/answer/1541280721'
+  ]
+
+}