Python3 有道云翻译反爬虫

反爬虫原理取自下面这篇文章 https://blog..net/nunchakushuang/article/details/75294947 -----------------------------分割线----------------------------------------------- 大佬图挂了，我自己补充下 右键查看源码 搜索.js文件 各个js文件中有salt 的是我们需要 最终排查到fanyi.min.js文件 美化后找到关键代码 这样就顺利知道了 salt sign的值

----------------------------------------------分割线---------------------------------------------------------------- 实验之后发现有道云做了部分更改，现将变更的内容及代码贴出如下：

1.chrome F12 追踪post请求 发现除了上述链接文章中提出的 salt sign 之外，还有ts 字段是变化的 ts的值是salt的值减去最后一位

2.headers 如果只保留User-Agent字段 会报 {‘errorCode’: 50} 3.查询语句 和 查询单词 返回结果结构不同

import requests
import json
import time
import random
import hashlib

def main():
    while True:
        url = http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule
        form = {
          
   
            i: hello,
            from: AUTO,
            to: AUTO,
            smartresult: dict,
            client: fanyideskweb,
            salt: 15546457655690,
            sign: ebfa6cf4a5e08a0e60068545270d662a,
            ts: 1554642745594,
            bv: d6c3cd962e29b66abe48fcb8f4dd7f7d,
            doctype: json,
            version: 2.1,
            keyfrom: fanyi.web,
            action: FY_BY_REALTlME,
            typoResult: false
        }

        headers = {
          
   
            Accept: application/json, text/javascript, */*; q=0.01,
            Accept-Encoding: gzip, deflate,
            Accept-Language: zh-CN,zh;q=0.9,
            Connection: keep-alive,
            Content-Length: 255,
            Content-Type: application/x-www-form-urlencoded; charset=UTF-8,
            Cookie: OUTFOX_SEARCH_USER_ID=1658584979@10.169.0.84; OUTFOX_SEARCH_USER_ID_NCOO=1097007475.90215; JSESSIONID=aaa-boq2ULGWp89ZhV6Nw; ___rl__test__cookies=1554690491011,
            Host: fanyi.youdao.com,
            Origin: http://fanyi.youdao.com,
            Referer: http://fanyi.youdao.com/,
            User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36,
            X-Requested-With: XMLHttpRequest
        }

        content = input(请输入需要翻译的句子：)
        #content = i need help now
        #content = hello
        if content == :
            print("拜拜~
")
            break

        u = fanyideskweb
        d = content
        f = str(int(time.time()*1000) + random.randint(1,10))
        c = 1L5ja}w$puC.v_Kz3@yYn #从fanyi.js中查到

        sign = hashlib.md5((u + d + f + c).encode(ascii)).hexdigest()

        form[salt] = f
        form[sign] = sign
        form[i] = content
        form[ts] = f[0:(len(f)-1)]

        response = requests.post(url , data = form , headers = headers)
        response.encoding = response.apparent_encoding
        result = response.json()
        #print( result)
        if result.get(smartResult) is None :
            print(result[translateResult][0][0][tgt])
        else:
            print( result[smartResult][entries][1])

if __name__ == __main__:
    main()

最后，欢迎各位大佬交流改进?