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携程爬虫(破解eleven, 发现ctrip_ticket)

使用时先跑'gen_ticket.py'生成ctrip_ticket，再跑'main.py'
破解eleven参数后，可以不需要调用selenium便可请求到详细的价格信息，提升获取速度、减少资源占用
该爬虫可爬取：

  • 每个酒店名称、评分
  • 每个酒店不同预订时间每种房型价格
  • 每个酒店不同预订时间每种房型满意度
  • 每个酒店不同预订时间每种房型剩余可订数

1. 获得房间价格的重要参数"eleven"的生成方法

  • "eleven"由一个混淆js文件-"oceanball"生成，该文件具有随机性
  • 生成方法:ctrip_funcs.py中的"get_oceanball"、"get_eleven"两个函数，需要配合js代码和python共同生成

2. 发现获得剩余可订房间仅需要Cookie: ctrip_ticket

  • 这个cookie疑似使用“Http-only”Flag 发送，无法直接读取，只能通过浏览器获得。(reference)
  • 该cookie时效较长，可以用selenium每30分钟提取一次

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