无法解析用户名以确保我已登录网站

我已经用python编写了一个脚本来登录网站并解析用户名，以确保我确实能够登录。使用下面尝试的方法似乎可以使我到达那里。但是，我使用了脚本中chrome开发工具中的硬编码cookie来获得成功。

我尝试过：

import requests
from bs4 import BeautifulSoup

url = 'https://secure.imdb.com/ap/signin?openid.pape.max_auth_age=0&openid.return_to=https%3A%2F%2Fwww.imdb.com%2Fap-signin-handler&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.assoc_handle=imdb_pro_us&openid.mode=checkid_setup&siteState=eyJvcGVuaWQuYXNzb2NfaGFuZGxlIjoiaW1kYl9wcm9fdXMiLCJyZWRpcmVjdFRvIjoiaHR0cHM6Ly9wcm8uaW1kYi5jb20vIn0&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0'
signin = 'https://secure.imdb.com/ap/signin'
mainurl = 'https://pro.imdb.com/'

with requests.Session() as s:
    res = s.get(url,headers={"User-agent":"Mozilla/5.0"})
    soup = BeautifulSoup(res.text,"lxml")
    payload = {i['name']: i.get('value', '') for i in soup.select('input[name]')}
    payload['email'] = 'some username'
    payload['password'] = 'some password'

    s.post(signin,data=payload,headers={
        "User-agent":"Mozilla/5.0",
        "Cookie": 'adblk=adblk_yes; ubid-main=130-2884709-6520735; _msuuid_518k2z41603=95C56F3B-E3C1-40E5-A47B-C4F7BAF2FF5D; _fbp=fb.1.1574621403438.97041399; pa=BCYm5GYAag-hj1CWg3cPXjfv2X6NGPUp6kLguepMku7Yf0W9-iSTjgmVNGmQLwUfJ5XJPHqlh84f%0D%0Agrd2voq0Q7TR_rdXU4T1BJw-1a-DdvCNSVuWSm50IXJDC_H4-wM_Qli_%0D%0A; uu=BCYnANeBBdnuTg3UKEVGDiO203C7KR0AQTdyE9Y_Y70vpd04N5QZ2bD3RwWdMBNMAJtdbRbPZMpG%0D%0AbPpC6vZvoMDzucwsE7pTQiKxY24Gr4_-0ONm7hGKPfPbMwvI1NYzy5ZhTIyIUqeVAQ7geCBiS5NS%0D%0A1A%0D%0A; session-id=137-0235974-9052660; session-id-time=2205351554; session-token=jsvzgJ4JY/TCgodelKegvXcqdLyAy4NTDO5/iEvk90VA8qWWEPJpiiRYAZe3V0EYVFlKq590mXU0OU9XMbAzwyKqXIzPLzKfLf3Cc3k0g/VQNTo6roAEa5IxmOGZjWrJuhkRZ1YgeF5uPZLcatWF1y5PFHqvjaDxQrf2LZbgRXF5N7vacTZ8maK0ciJmQEjh; csm-hit=tb:8HH0DWNBDVSWP881GYKG+s-8HH0DWNBDVSWP881GYKG|1574631571950&t:1574631571952&adb:adblk_yes'
        })

    r = s.get(mainurl,headers={
        "Cookie": 'adblk=adblk_yes; ubid-main=130-2884709-6520735; _msuuid_518k2z41603=95C56F3B-E3C1-40E5-A47B-C4F7BAF2FF5D; _fbp=fb.1.1574621403438.97041399; pa=BCYm5GYAag-hj1CWg3cPXjfv2X6NGPUp6kLguepMku7Yf0W9-iSTjgmVNGmQLwUfJ5XJPHqlh84f%0D%0Agrd2voq0Q7TR_rdXU4T1BJw-1a-DdvCNSVuWSm50IXJDC_H4-wM_Qli_%0D%0A; csm-hit=tb:KV47B1QVKP4DNB3QGY95+b-NM69W1Y35R7ARV0639V5|1574631544432&t:1574631544432&adb:adblk_yes; session-id=137-0235974-9052660; session-id-time=2205351554; session-token="EsIzROiSTmFDfXd5jnBPIBOpYG9jAu7tiWXDF8R52sUw5jS6OjddfOOQB+ytCmq0K3UnXs9wKBvQtkB4aVNsXieVbRcIUrKf3iPnYeJchbOlShMjg+MR+O7IQgPKkw0BKihdYQ1YIl7KQS8VeLxZjtzJ5sj5ocnY72fCKdwq/fGOjfieFYbe9Km3a8h++1GpC738JbwcVdpTG08v1pjhQKifqPQXnqhcyVKhi8CD1qk="; x-main="C1KbtQgFFBAYfwttdRSrU5CpCe@Fn6SPHnBTY6dO2ppimt@u1P1L7G0PueQMn6X3"; at-main=Atza|IwEBICfS3UKNp2mwmbyUPY1QzjXRHMcL6fjv2ND7BDXsZ1G-qDPJKsLJXeU9gJOvRpWsofSpOJCyhnap-bIOWCutU6VMIS9bn3UkNVRP8WFVqrs-CLB5opLbrEx6YxVGQlfaxx54gzuuGO4D30z-AgBpGe64_bn0K1iLOT3P3i7S3nBzvP_0AopwKlbU7SRnE5m21cVfVK7bwbtfZO4cf7DrpGcaHK4dlY5jKHPzNx_AR4ypqsEBFbHon36N1j8foty6wLJhFP1gNCvs24mVCec24TRho5ZXFDYqhLB-dw9V3XY1eq7q1QNgtAdYkDSJ6Mq1nllFu59WqIVs1Y3lLEaxDUExLtCt-VQArpS_hZtZR8C_kevhV01jEhWg8RUQaCdYTMwZHwa778MiEOrrrdGqFnR5; sess-at-main="tWwUfkZLx+mDAPqZo+J6yJlnjqBJvYJ0oVMS6/NcIKQ="; id=BCYhnxuM-3g3WFo4uvCv6C5LdGLJKaIcZj8E-rQwU_YsF991I3Tqe94W6IlU27FvaNcnuCyv5Te3%0D%0A0c3O1mMYhEE14wMdByo2SvGXkBS0A4oFMJMEIe0aC1X4fyNRwWYNZ72a6NDzAOqeDQi3_7sZZGH8%0D%0AxQ%0D%0A; uu=BCYsGSOaee6VbhMOMXpG3F_6i7cTIkPCN0S0_Jv7c3bVkUQ5gp9vqtfvVlOMOIOqXv-uHSTSibBp%0D%0ATO1e4tRpT1DolY2qkoOW8yICF7ZrXqAgont_ShTy8zVEg1wxWCxg3_XQX8r8_dGFCO4NWZiyLH-f%0D%0A2RpBF2IJLUSd8R4UCbbbtgo%0D%0A; sid=BCYp9inRAYR9sJgmF1FcA9Vgto81vmiCYHP_gEVv6r2ZdBtz1bKtOQg4_0iSwREudsZrPM8SHMUk%0D%0A5jFMp74veGrdwNTf8DONXPUCExLgkHzfeoZr-KHf4VbI7aI5TrJhqSioYbEhHYqm6q5RGrXfCVPr%0D%0AqA%0D%0A'
        })

    sauce = BeautifulSoup(r.text,"lxml")
    name = sauce.select_one("span.display-name").text
    print(name)

我已经尝试使用以下方法来查看它是否可以避免使用硬编码的cookie，但不幸的是它失败了：

cookie_string = "; ".join([str(x)+"="+str(y) for x,y in s.cookies.items()])

这是我自动尝试的方式：

cookie_string = "; ".join([str(x)+"="+str(y) for x,y in s.cookies.items()])
s.post(signin,data=payload,headers={
    "User-agent":"Mozilla/5.0",
    "Cookie": cookie_string
    })
cookie_string_ano = "; ".join([str(x)+"="+str(y) for x,y in s.cookies.items()])
r = s.get(mainurl,headers={
    "Cookie": cookie_string_ano
    })

当我尝试使用上面我可以看到cookie_string，cookie_string_ano正在生产session-id=130-0171771-5726549; session-id-time=2205475101l和session-id=130-0171771-5726549; session-id-time=2205475101l; ubid-main=135-8050026-6353151。

如何在脚本中不使用硬编码cookie的情况下获取用户名？

要从Chrome开发者工具中获取cookies信息，需要使用Python脚本中的Chrome DevTools协议与Google Chrome进行交互。

这是一个python插件，可让您获得Cookie的特权。这将帮助您克服与相关的问题hard-coded cookies。访问参考： PyChromeDevTools。

切记： IMDb明确禁止刮屏。请访问此处给出的参考IMDb使用条件；

机械手和屏幕抓取：除非获得以下明确的书面同意，否则您不得在本网站上使用数据挖掘，机械手，屏幕抓取或类似的数据收集和提取工具。

先决条件：

• 为此，您首先必须在系统环境变量中设置镶边路径。

• 之后，您必须运行带有remote-debugging选项的Google Chrome实例-visit-reference：使用Chrome开发人员工具进行远程调试。

• 在command-prompt或中使用以下命令terminal来运行给定的实例；

  chrome.exe --remote-debugging-port=9222 --user-data-dir=remote-profile

解决方法：

运行Google实例后，您可以像下面的示例一样运行该程序。

import time
import requests
import PyChromeDevTools
from bs4 import BeautifulSoup

url = 'https://secure.imdb.com/ap/signin?openid.pape.max_auth_age=0&openid.return_to=https%3A%2F%2Fwww.imdb.com%2Fap-signin-handler&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.assoc_handle=imdb_pro_us&openid.mode=checkid_setup&siteState=eyJvcGVuaWQuYXNzb2NfaGFuZGxlIjoiaW1kYl9wcm9fdXMiLCJyZWRpcmVjdFRvIjoiaHR0cHM6Ly9wcm8uaW1kYi5jb20vIn0&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0'
signin = 'https://secure.imdb.com/ap/signin'
mainurl = 'https://pro.imdb.com/'


def parse_cookies(input_url):
    chrome = PyChromeDevTools.ChromeInterface()
    chrome.Network.enable()
    chrome.Page.enable()
    chrome.Page.navigate(url=input_url)
    time.sleep(2)

    cookies = chrome.Network.getCookies()

    return cookies["result"]["cookies"]


def get_cookies(parsed_cookie_string):
    cookie_names = [sub_cookie['name'] for sub_cookie in parsed_cookie_string]
    cookie_values = [sub_cookie['value'] for sub_cookie in parsed_cookie_string]

    cookie_string = "; ".join([str(x) + "=" + str(y) for x, y in zip(cookie_names, cookie_values)])

    return cookie_string


with requests.Session() as s:
    res = s.get(url, headers={"User-agent": "Mozilla/5.0"})
    soup = BeautifulSoup(res.text, "lxml")
    payload = {i['name']: i.get('value', '') for i in soup.select('input[name]')}
    payload['email'] = 'some username'
    payload['password'] = 'some password'

    cookie_string_for_post = parse_cookies(signin)
    print("Cookies for Post Request:\n ", cookie_string_for_post)

    cookie_string_for_get = parse_cookies(mainurl)
    print("Cookies for Get Request:\n ", cookie_string_for_get)

    post_req_cookies = get_cookies(cookie_string_for_post)
    print("Post Cookie_String:\n ", post_req_cookies)

    get_req_cookies = get_cookies(cookie_string_for_get)
    print("Get Cookie_String:\n ", get_req_cookies)

    s.post(signin, data=payload, headers={
        "User-agent": "Mozilla/5.0",
        "Cookie": post_req_cookies
    })

    r = s.get(mainurl, headers={
        "Cookie": get_req_cookies
    })

    sauce = BeautifulSoup(r.text, "lxml")
    name = sauce.select_one("span.display-name").text
    print("User-Name:", name)

在上面的脚本中，我维护了两种方法：

• parse_cookies（input_url） # To Parse Cookies from IMDB before and after sign-in
• get_cookies（parsed_cookie_string） # To do slicing for { name=values; } pattern

这是上面脚本的结果；

Cookies for Post Request:
  [{'name': 'csm-hit', 'value': 'adb:adblk_no&t:1575551929829', 'domain': 'secure.imdb.com', 'path': '/', 'expires': 1636031929, 'size': 35, 'httpOnly': False, 'secure': False, 'session': False}, {'name': 'session-token', 'value': 'ojv7WWBxadoA7dlcquiw9uErP2rhrTH7rHbpVhoRy4T+qTDfhwZKdDt5jOeGfZp1TKvwtzTGuJ6pOltjNFPiIuP5Rd5Vw8/e1J3RY/iye5tEh7qoRC2NHF9wc003xKG3PPAAdmgf8/mv8GeLAOOKNgWKBTUeMre9xbj5GzXxZBPdXMZttHrMYqKKSuwWLpa0', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035367.931534, 'size': 205, 'httpOnly': True, 'secure': True, 'session': False}, {'name': '_msuuid_518k2z41603', 'value': '7EFA48D9-B808-4A94-AF25-DF946D700AE7', 'domain': '.imdb.com', 'path': '/', 'expires': 1607087673, 'size': 55, 'httpOnly': False, 'secure': False, 'session': False}, {'name': 'uu', 'value': 'BCYrG0JCGIzGSiHxLJnhMiZmYPKjX1M_R2SYqoaFp8H_0KTtNvuGu-u_h_WO9yjlPz2CTdiUs86i%0D%0Az7kP7F-mJu5OZVpOKhquJmQf7Ks8_flkk2XlZzTPnz7R4WTBpqeRfxQqr0M9q54Gvnd0f5s1lajr%0D%0AVA%0D%0A', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035262.37521, 'size': 174, 'httpOnly': False, 'secure': True, 'session': False}, {'name': 'ubid-main', 'value': '130-4270133-5864707', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035317.315112, 'size': 28, 'httpOnly': False, 'secure': True, 'session': False}, {'name': 'adblk', 'value': 'adblk_no', 'domain': '.imdb.com', 'path': '/', 'expires': 1607087639, 'size': 13, 'httpOnly': False, 'secure': False, 'session': False}, {'name': '_fbp', 'value': 'fb.1.1575551679007.40322953', 'domain': '.imdb.com', 'path': '/', 'expires': 1583327724, 'size': 31, 'httpOnly': False, 'secure': False, 'session': False}, {'name': 'session-id', 'value': '130-3480383-2108806', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035262.375339, 'size': 29, 'httpOnly': False, 'secure': True, 'session': False}, {'name': 'session-id-time', 'value': '2206271615', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035262.375396, 'size': 25, 'httpOnly': False, 'secure': True, 'session': False}]
Cookies for Get Request:
  [{'name': 'vuid', 'value': 'pl1203459194.1031556308', 'domain': '.vimeo.com', 'path': '/', 'expires': 1638623938, 'size': 27, 'httpOnly': False, 'secure': False, 'session': False}, {'name': 'session-token', 'value': 'ojv7WWBxadoA7dlcquiw9uErP2rhrTH7rHbpVhoRy4T+qTDfhwZKdDt5jOeGfZp1TKvwtzTGuJ6pOltjNFPiIuP5Rd5Vw8/e1J3RY/iye5tEh7qoRC2NHF9wc003xKG3PPAAdmgf8/mv8GeLAOOKNgWKBTUeMre9xbj5GzXxZBPdXMZttHrMYqKKSuwWLpa0', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035367.931534, 'size': 205, 'httpOnly': True, 'secure': True, 'session': False}, {'name': '_msuuid_518k2z41603', 'value': '7EFA48D9-B808-4A94-AF25-DF946D700AE7', 'domain': '.imdb.com', 'path': '/', 'expires': 1607087673, 'size': 55, 'httpOnly': False, 'secure': False, 'session': False}, {'name': 'uu', 'value': 'BCYrG0JCGIzGSiHxLJnhMiZmYPKjX1M_R2SYqoaFp8H_0KTtNvuGu-u_h_WO9yjlPz2CTdiUs86i%0D%0Az7kP7F-mJu5OZVpOKhquJmQf7Ks8_flkk2XlZzTPnz7R4WTBpqeRfxQqr0M9q54Gvnd0f5s1lajr%0D%0AVA%0D%0A', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035262.37521, 'size': 174, 'httpOnly': False, 'secure': True, 'session': False}, {'name': 'ubid-main', 'value': '130-4270133-5864707', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035317.315112, 'size': 28, 'httpOnly': False, 'secure': True, 'session': False}, {'name': 'adblk', 'value': 'adblk_no', 'domain': '.imdb.com', 'path': '/', 'expires': 1607087639, 'size': 13, 'httpOnly': False, 'secure': False, 'session': False}, {'name': '_fbp', 'value': 'fb.1.1575551679007.40322953', 'domain': '.imdb.com', 'path': '/', 'expires': 1583327724, 'size': 31, 'httpOnly': False, 'secure': False, 'session': False}, {'name': 'session-id', 'value': '130-3480383-2108806', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035262.375339, 'size': 29, 'httpOnly': False, 'secure': True, 'session': False}, {'name': 'session-id-time', 'value': '2206271615', 'domain': '.imdb.com', 'path': '/', 'expires': 3723035262.375396, 'size': 25, 'httpOnly': False, 'secure': True, 'session': False}]
Post Cookie_String:
  csm-hit=adb:adblk_no&t:1575551929829; session-token=ojv7WWBxadoA7dlcquiw9uErP2rhrTH7rHbpVhoRy4T+qTDfhwZKdDt5jOeGfZp1TKvwtzTGuJ6pOltjNFPiIuP5Rd5Vw8/e1J3RY/iye5tEh7qoRC2NHF9wc003xKG3PPAAdmgf8/mv8GeLAOOKNgWKBTUeMre9xbj5GzXxZBPdXMZttHrMYqKKSuwWLpa0; _msuuid_518k2z41603=7EFA48D9-B808-4A94-AF25-DF946D700AE7; uu=BCYrG0JCGIzGSiHxLJnhMiZmYPKjX1M_R2SYqoaFp8H_0KTtNvuGu-u_h_WO9yjlPz2CTdiUs86i%0D%0Az7kP7F-mJu5OZVpOKhquJmQf7Ks8_flkk2XlZzTPnz7R4WTBpqeRfxQqr0M9q54Gvnd0f5s1lajr%0D%0AVA%0D%0A; ubid-main=130-4270133-5864707; adblk=adblk_no; _fbp=fb.1.1575551679007.40322953; session-id=130-3480383-2108806; session-id-time=2206271615
Get Cookie_String:
  vuid=pl1203459194.1031556308; session-token=ojv7WWBxadoA7dlcquiw9uErP2rhrTH7rHbpVhoRy4T+qTDfhwZKdDt5jOeGfZp1TKvwtzTGuJ6pOltjNFPiIuP5Rd5Vw8/e1J3RY/iye5tEh7qoRC2NHF9wc003xKG3PPAAdmgf8/mv8GeLAOOKNgWKBTUeMre9xbj5GzXxZBPdXMZttHrMYqKKSuwWLpa0; _msuuid_518k2z41603=7EFA48D9-B808-4A94-AF25-DF946D700AE7; uu=BCYrG0JCGIzGSiHxLJnhMiZmYPKjX1M_R2SYqoaFp8H_0KTtNvuGu-u_h_WO9yjlPz2CTdiUs86i%0D%0Az7kP7F-mJu5OZVpOKhquJmQf7Ks8_flkk2XlZzTPnz7R4WTBpqeRfxQqr0M9q54Gvnd0f5s1lajr%0D%0AVA%0D%0A; ubid-main=130-4270133-5864707; adblk=adblk_no; _fbp=fb.1.1575551679007.40322953; session-id=130-3480383-2108806; session-id-time=2206271615
User-Name: **Logged in user-name**

好像您是从浏览器复制cookie一样，因此在这里我将采用这种理论。

您击中的第一个api，设置了一些cookie，返回了一个页面，该页面调用了更多的url，设置了更多的cookie，然后继续。尝试检查“网络”标签中的所有请求，以查看是否有多个呼叫设置了不同的Cookie。

如果有的话，您需要按照它们在页面中调用的顺序来调用所有它们，每个调用都添加新的cookie，然后，您最终应该能够看到您正在复制的所有cookie。

但是，如果要在任何调用中计算并发送随机数据，则可能是出于csrf保护或漫游器保护，在这种情况下，最好使用http://www.omdbapi.com/或https：/ /imdbpy.github.io/访问官方API，而不是内部API。