Python模拟登陆 —— 征服验证码 7 京东

作者：SeanCheney

來源：简书 

京东的登录表单设置了许多隐藏字段，如下所示：

所以都要获取下来。

同样也是输错三次之后出现authcode。

验证码

import requests

from bs4 import BeautifulSoup

import time



try:

    input = raw_input

except:

    pass



class JDlogin(object):

    def __init__(self,un,pw):

        self.headers = {'User-Agent':"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AcooBrowser; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",

                        'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',

                        'Accept-Encoding':'gzip, deflate, sdch',

                        'Accept-Language':'zh-CN,zh;q=0.8',

                        'Connection':'keep-alive',

                        }

        self.session = requests.session()

        self.login_url = "http://passport.jd.com/uc/login"

        self.post_url = "http://passport.jd.com/uc/loginService"

        self.auth_url = "https://passport.jd.com/uc/showAuthCode"

        self.un = un

        self.pw = pw



    def get_authcode(self,url):

        self.headers['Host'] = 'authcode.jd.com'

        self.headers['Referer'] = 'https://passport.jd.com/uc/login'

        response = self.session.get(url, headers = self.headers)

        with open('authcode.jpg','wb') as f:

            f.write(response.content)

        authcode = input("plz enter authcode:")

        return authcode



    def get_info(self):

        '''获取登录相关参数'''

        try:

            page = self.session.get(self.login_url, headers = self.headers )

            soup = BeautifulSoup(page.text,"lxml")

            input_list = soup.select('.form input')



            data = {}

            data['uuid'] = input_list[0]['value']

            data['eid'] = input_list[4]['value']

            data['fp'] = input_list[5]['value']

            data['_t'] = input_list[6]['value']

            rstr = input_list[7]['name']

            data[rstr] = input_list[7]['value']

            acRequired = self.session.post(self.auth_url, data={'loginName':self.un}).text #返回({"verifycode":true})或({"verifycode":false})



            if 'true' in acRequired:

                print ('need authcode, plz find it and fill in ')

                acUrl = soup.select('.form img')[0]['src2']

                acUrl = 'http:{}&yys={}'.format(acUrl,str(int(time.time()*1000)))

                authcode = self.get_authcode(acUrl)

                data['authcode'] = authcode

            else:

                data['authcode'] = ''



        except Exception as e:

            print (e)

        finally:

            return data

    def login(self):

        

        postdata = self.get_info()

        postdata['loginname'] = self.un

        postdata['nloginpwd'] = self.pw

        postdata['loginpwd'] = self.pw

        try:

            self.headers['Host'] = 'passport.jd.com'

            self.headers['Origin'] = 'https://passport.jd.com'

            self.headers['X-Requested-With'] = 'XMLHttpRequest'

            login_page = self.session.post(self.post_url, data = postdata, headers = self.headers)

            print (login_page.text)  #若返回{“success”:”http://www.jd.com”}，说明登录成功

        except Exception as e:

            print (e)



if __name__=="__main__":

    username = input("plz enter username:")

    password = input("plz enter password:")

    JD = JDlogin(username,password)

    JD.login()