(pthon)了解微信网页登陆的原理,实现模拟登陆

1.先获取uuid

这个其实类似获取验证码一样，每次刷新都会不一样，你只需要拿一次刷新的结果就好

//获取uuid的地址
https://login.wx.qq.com/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Flogin.weixin.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage&fun=new&lang=zh_CN
//返回数据
window.QRLogin.code = 200;
window.QRLogin.uuid = "";

2.通过获取的uuid,获取授权二维码

//返回的是一张二维码图，手机扫描即可
https://login.weixin.qq.com/qrcode/(uuid的值）

3.获取登陆地址

//构造以下地址，扫描步骤1的二维码，手机确定后打开构造好的地址
https://login.wx.qq.com/cgi-bin/mmwebwx-bin/login?loginicon=true&uuid=(uui的值)

//返回数据
window.code = 200;
window.redirect_uri ="登陆成功的跳转地址";

4.获得跳转链接后，就可以登陆了

该链接是独立的，随便用一个浏览器打开都可以

5.代码实现登陆，并获取所有联系人，公众号及群聊信息

import requests
import os
import time
import json

wx_web = 'https://wx.qq.com/cgi-bin/mmwebwx-bin'
wx_login = 'https://login.wx.qq.com'
session = requests.Session()


def step1_get_uuid():
    url = wx_login + '/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Flogin.weixin.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage'
    text = session.get(url).text
    uuid = text[text.rfind('uuid = "') + len('uuid = "'):len(text) - 2]
    return uuid


def step2_get_qr_code(uuid, timeout=6):
    url = wx_login + '/qrcode/%s' % uuid
    content = session.get(url).content
    with open('qr_code.png', 'wb') as fp:
        fp.write(content)
    os.system('qr_code.png')
    time.sleep(timeout)
    os.remove('qr_code.png')


def step3_login_address(uuid):
    url = wx_login + '/cgi-bin/mmwebwx-bin/login?loginicon=true&uuid=%s' % uuid
    text = session.get(url).text
    if text.find('window.code=200;') >= 0:
        return text[text.find('redirect_uri="') + len('redirect_uri="'):len(text) - 2]
    else:
        return None


def step4_open_it(url):
    session.get(url)


def step5_get_all_info():
    contact_url = '%s/webwxgetcontact' % wx_web
    data = {'BaseRequest': ''}
    r = session.post(contact_url, data=json.dumps(data))
    json_data = json.loads(r.content.decode('utf-8'))
    return json_data


if __name__ == '__main__':
    # 获取uuid
    uuid = step1_get_uuid()
    # 获取授权二维码
    step2_get_qr_code(uuid)
    # 获取登陆地址
    url = step3_login_address(uuid)
    if url is not None:
        # 打开登陆地址
        step4_open_it(url)
        # 获取所有信息
        data = step5_get_all_info()
        mp_type = {
            8: {'name': '个人订阅号', 'count': 0, 'list': []},
            0: {'name': '好友', 'count': 0, 'list': [],
                'gender': {'man': 0, 'woman': 0, 'undefined': 0}},
            24: {'name': '商标公众号', 'count': 0, 'list': []},
            56: {'name': '微信团队', 'count': 0, 'list': []},
            29: {'name': '未知', 'count': 0, 'list': []},
            -1: {'name': '群聊', 'count': 0, 'list': []}
        }
        for x in data['MemberList']:
            if x['UserName'].count('@') == 2:
                mp_type[-1]['count'] += 1
                mp_type[-1]['list'].append(x['NickName'])
            else:
                mp_type[x['VerifyFlag']]['count'] += 1
                if x['VerifyFlag'] is not 0:
                    mp_type[x['VerifyFlag']]['list'].append(x['NickName'])
                else:
                    if x['Sex'] == 1:
                        mp_type[x['VerifyFlag']]['gender']['man'] += 1
                    elif x['Sex'] == 2:
                        mp_type[x['VerifyFlag']]['gender']['woman'] += 1
                    else:
                        mp_type[x['VerifyFlag']]['gender']['undefined'] += 1
        for key, item in mp_type.items():
            print(item)
            print(100 * '-')
    else:
        print('登陆失败!')

演示：

show.gif

6.其实itchat包就是利用模拟登陆来实现的

有兴趣的可以去看他的官网，或者源码：itchat文档

写在最后，当某一天你也设计网站的绑定登陆不妨参考一下微信的方式