爬虫逆向实战(31)-某花顺行情中心(cookie、补环境)

一、数据接口分析

主页地址:某花顺

1、抓包

通过抓包可以发现数据接口是/page/2/ajax/1/
在这里插入图片描述

2、判断是否有加密参数

  1. 请求参数是否加密?
  2. 请求头是否加密?
    通过查看“标头”可以发现有一个Hexin-V加密参数,但是这个参数的值与cookie中v的值是一致的。
    在这里插入图片描述
  3. 响应是否加密?
  4. cookie是否加密?
    有一个加密参数v

二、加密位置定位

1、看启动器

查看启动器发现里面包含异步,所以无法正确找到加密位置
在这里插入图片描述

2、搜索关键字

通过搜索关键字setcookie,可以找到有一个文件中出现了四处关键字setcookie,所以我们就需要把这四处都打断点。
在这里插入图片描述
然后在“应用”模块中的将cookie删除。
在这里插入图片描述
再次发包,可以发现代码断在了其中一个位置,并且此处就是设置cookie中的v的,cookie值的生成是调用的上方rt.update方法。
在这里插入图片描述

三、扣js代码

因为在扣js代码时发现需要扣很多的东西,而且这个js文件也不是很大,所以,我们可以把整改js文件扣下来,然后一步一步补环境即可。但是这个js文件需要补的环境很多,可以使用对象代理的方式,或者jsdom补环境,也可以代码哪里报错在浏览器中查看需要补哪里。
JavaScript源码:

null_func = function () {return ['']
}
setInterval = function () {}setTimeout = function () {}
window = global
document = {getElementsByTagName: null_func,createElement: null_func,attachEvent: null_func,documentElement: {}
}
navigator = {userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36',javaEnabled: function () {return true},plugins: {0: {},1: {},2: {},3: {},4: {},}
}
location = {href: 'http://q.10jqka.com.cn/',host: 'q.10jqka.com.cn',protocol: 'http:',hostname: 'q.10jqka.com.cn'
}var TOKEN_SERVER_TIME = 1694134958.409;
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