网络营销书籍排行榜前十名/青岛网站关键词排名优化

0.参考

1.分析

1.1 输入翻译内容，手动点击“翻译”按钮

 

1.2 查看提交数据，通过多次提交确认变化量

 

1.3 Ctrl+Shift+f 全局搜索 salt 或 sign 定位到三处js代码块，通过搜索提交数据中的`version：2.1`的关键字`2.1`锁定目标代码块：salt 与时间戳相关，通过 MD5 生成 

sign

 

1.4 在上方函数入口添加断点，再次点击“翻译”, F10开始步进调试

 

1.5 python 计算对比 MD5

 

2. 完整代码

import time
import random
import re
import hashlibimport requests
from scrapy import Selectorurl = 'http://fanyi.youdao.com/'
s = requests.Session()
s.headers = {'Referer': 'http://fanyi.youdao.com','User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36'}# Get cookies
r_url = s.get(url)# Get latest D for md5 from file fanyi.min.js
# <script type="text/javascript" src="http://shared.ydstatic.com/fanyi/newweb/v1.0.9/scripts/newweb/fanyi.min.js"></script>
# sel = Selector(text=r_url.text)
# url_js = sel.css('script::attr(src)').re_first('.*fanyi.min.js')
# r_js = s.get(url_js)
# D = re.search(r'D\s*=\s*"(.*?)"', r_js.text).group(1)
# print(D)
D = 'ebSeFb%=XZ%T[KZ)c(sy!'url_post = 'http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule'
data = dict(# i = 'have you eaten',i = '你吃饭了吗？',    # from = 'AUTO',to = 'AUTO',smartresult = 'dict',client = 'fanyideskweb',doctype = 'json',version = '2.1',keyfrom = 'fanyi.web',action = 'FY_BY_CLICKBUTTION',typoResult = 'false'
)salt = str(int(time.time()*1000) + random.randint(0, 9))
print(salt)
m = hashlib.md5()
m.update((data['client']+data['i']+salt+D).encode('utf-8'))
sign = m.hexdigest()
print(sign)data.update({'from': 'AUTO', 'salt': salt, 'sign': sign})
r_post = s.post(url_post, data=data)
print(r_post.json())

 

3.运行代码