当scrapy遇到curl_cffi,解决TLS指纹,scrapy-fingerprint解决ja3指纹

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 1.初识指纹

一天遇到一个网站,忽然发现无论如何如何更换UA和代理请求都是403

通过Wireshark抓包发现居然使用ja3指纹

JA3指纹创建过程

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经过多方搜索资料如何解决发现了一个比较好的三方库curl_cffi

pip install curl_cffi

用法如下

from curl_cffi import requests

# Notice the impersonate parameter
r = requests.get("https://tls.browserleaks.com/json", impersonate="chrome110")

print(r.json())
# output: {..., "ja3n_hash": "aa56c057ad164ec4fdcb7a5a283be9fc", ...}
# the js3n fingerprint should be the same as target browser

# http/socks proxies are supported
proxies = {"https": "http://localhost:3128"}
r = requests.get("https://tls.browserleaks.com/json", impersonate="chrome110", proxies=proxies)

proxies = {"https": "socks://localhost:3128"}
r = requests.get("https://tls.browserleaks.com/json", impersonate="chrome110", proxies=proxies)

2.安装scrapy-fingerprint

查阅官方文档发现有异步用法,自己写了个指纹中间件,并打了个包

只需要安装即可

pip install scrapy-fingerprint

打开下载中间件

'scrapy_fingerprint.fingerprintmiddlewares.FingerprintMiddleware': 543,

将spider中scrapy.Request改写

yield FingerprintRequest(url=url, callback=self.parse)

具体请查看,可以正常获取到数据了.

GitHub - tieyongjie/scrapy-fingerprint

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