几乎一样的代码和配置, aiohttp 和 requests 获取到的页面内容不一样, 这个问题可能出在哪? - V2EX
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woshichuanqilz
V2EX    Python

几乎一样的代码和配置, aiohttp 和 requests 获取到的页面内容不一样, 这个问题可能出在哪?

  •  
  •   woshichuanqilz 2020-08-02 16:50:48 +08:00 3755 次点击
    这是一个创建于 1895 天前的主题,其中的信息可能已经有所发展或是发生改变。

    查了一下 Stack Overflow 问题可能在 ssl 上, 但是改了还是不行。

    import asyncio import requests import time import json import random import aiohttp from ori_async import get_proxy list_url = 'https://www.amazon.co.uk/s?k=dress&ref=nb_sb_noss' product_url = 'https://www.amazon.co.uk/AUSELILY-Womens-Sleeve-Pleated-Pockets/dp/B082W811L3/ref=sr_1_1_sspa?dchild=1&keywords=dress&qid=1596264150&s=clothing&sr=1-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzTEpRR0NLRlhQMFFDJmVuY3J5cHRlZElkPUEwMDY5Nzg5MkZTUllZWTM3VFVIQiZlbmNyeXB0ZWRBZElkPUEwOTU0NzQ1MTE0QzhFV0w0SjJOMCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=' baidu_url = 'https://www.baidu.com' headers = { "authority": "www.amazon.co.uk", "method": "GET", "path": "/s?k=dress&i=clothing&ref=nb_sb_noss", "scheme": "https", "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9", "accept-encoding": "gzip, deflate, br", "accept-language": "zh-CN,zh;q=0.9,en;q=0.8,en-US;q=0.7,ja;q=0.6,zh-TW;q=0.5", "cache-control": "max-age=0", "cookie": "session-id=258-7467381-0898317; i18n-prefs=GBP; ubid-acbuk=262-6045121-6110346; x-wl-uid=13CgqXYwZCFN3okL9HYQm7Iyt8Md2S5Dj4uA/dwKZrgtM0V8Ii0/OTO/AbtTOSRVzmlpbyCfIvZw=; session-token=\"K1UgAkfjQLKORhX6CN0AXXcRycoGecW5zqC3Nk8y/0rr7ZHQPpm5kzjT0YPAY/M8vVOWYNXoWCDYhSbrXyHP/bnNILWcLd2I+04dfUASNtpMHQkTh2YNffN748Rd9HxMQ6wFjVkDsfhgbm/YgEQ5uy8H+qWM1i9z+8uePKVL1BfVQtQpOEFxLQK+1GRQHBfdt7urN81Bkg0WjHz3pOVR31pILIjf3aM1nhncWG1P/A93yPpUOBTFeMh5/6V4RrddfHGn4uifWdg=\"; session-id-time=2082758401l; csm-hit=tb:3GP38DER2C68WEEPMTK8+s-KCAYBB85E78WBDWP92X7|1595834228498&t:1595834228498&adb:adblk_yes", "downlink": "9.75", "ect": "4g", "rtt": "200", "sec-fetch-dest": "document", "sec-fetch-mode": "navigate", "sec-fetch-site": "same-origin", "sec-fetch-user": "?1", "upgrade-insecure-requests": "1", "user-agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4181.9 Safari/537.36" } url = list_url # proxies = get_proxy() async def main(): cOnnector= aiohttp.TCPConnector(ssl=False) async with aiohttp.ClientSession(cOnnector=connector) as session: async with session.get(url, headers=data["headers"]) as resp: print(resp.status) cOntent= await resp.text() print(len(content)) start = time.time() loop = asyncio.get_event_loop() loop.run_until_complete(main()) end = time.time() print('spend time is {}'.format(end - start)) # respOnse= requests.get(url, headers=headers, proxies=proxies, timeout=8, verify=False) respOnse= requests.get(url, headers=headers, timeout=8, verify=False) print("length is {}".format(len(response.text))) 
    13 条回复    2020-08-05 17:09:05 +08:00
    locoz
        1
    locoz  
       2020-08-02 17:00:29 +08:00
    抓包对比,分分钟就能看到问题所在
    woshichuanqilz
        2
    woshichuanqilz  
    OP
       2020-08-02 19:20:19 +08:00
    @locoz
    你好我用了 fiddler 抓包 但是 aiohttp 的请求在 fiddler 里面不显示。

    requests 是正常的。

    aiohttp 的抓取过程是有的 有页面保存下来
    picone
        3
    picone  
       2020-08-02 22:46:37 +08:00
    wireshark 抓包对比下,可能底层做了些奇怪的处理。
    Trim21
        4
    Trim21  
       2020-08-02 22:51:46 +08:00 via Android
    aiohttp 不能设置 proxy 吗…
    gesse
        5
    gesse  
       2020-08-02 22:52:24 +08:00
    电商网站, 不一样的用户指纹,返回不一样的内容不很正常吗?
    woshichuanqilz
        6
    woshichuanqilz  
    OP
       2020-08-02 23:07:16 +08:00 via Android
    @gesse 两个方法用的信息基本是一样的 你说的指纹具体指的是什么这个例子能修改吗
    woshichuanqilz
        7
    woshichuanqilz  
    OP
       2020-08-02 23:07:50 +08:00 via Android
    @Trim21 可以但是这个是是代理的问题吗
    Trim21
        8
    Trim21  
       2020-08-02 23:16:26 +08:00 via Android
    @woshichuanqilz 我是说 fiddler 抓包的问题
    Nigelchiang
        9
    Nigelchiang  
       2020-08-02 23:27:34 +08:00
    楼主你的 cookie 都泄露了,赶紧把亚马逊退出重登一下吧
    levelworm
        10
    levelworm  
       2020-08-02 23:30:48 +08:00
    cookie 建议不要贴出来。
    gesse
        11
    gesse  
       2020-08-03 00:01:26 +08:00
    @woshichuanqilz

    https://fingerprintjs.com/
    你自己用浏览器访问, 清缓存、清 cookie 前后对比, 看那串红色的数字是不是一样的。
    locoz
        12
    locoz  
       2020-08-03 11:36:30 +08:00
    @woshichuanqilz #2
    aiohttp 的请求在抓包工具里不显示大概是因为你根本没有设置让它走代理,在请求的时候带上 proxy 参数就行了。

    抓包先看 HTTP 层的各个参数有没有区别,有的话先处理成一模一样的。aiohttp 和 requests 的实现不同,对一些情况的处理并不相同,比如常见容易出问题的情况是 headers 里多了东西或者少了东西,或者是某个有特殊符号之类的 value 被编码成另一种样子之类的。
    如果 HTTP 层都统一了但还是有区别的话,就用 wireshark 看看 SSL 层有没有什么区别,比如常见用来做 SSL 指纹的加密套件部分。
    Te11UA
        13
    Te11UA  
       2020-08-05 17:09:05 +08:00
    不一样是什么意思,长度不一样还是验证码?
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