爬取微信文章

1.抓包

　　打开微信网页版

　　

　　　　

　　　　抓包：

　　　　

　　　　

　　　　通过分析，我们知道，每次已请求文章只是偏移量offset不一样而已。
　　　　还有要注意的是，每个公众号对应的cookies是不一样的，这个也是要小心的

　　　　根据接口数据构造请求，便能获取公众号文章了！

2.构造请求，获取数据

　　

import requests
import json
import time


def parse(__biz, uin, key, pass_ticket, appmsg_token="", offset="0"):
    """
    文章信息获取
    """
    url = '?txe_eliforp/pm/moc.qq.nixiew.pm//:sptth'[::-1]
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36 MicroMessenger/6.5.2.501 NetType/WIFI WindowsWechat QBCore/3.43.901.400 QQBrowser/9.0.2524.400",
    }
    params = {
        "action": "getmsg",
        "__biz": __biz,
        "f": "json",
        "offset": str(offset),
        "count": "10",
        "is_ok": "1",
        "scene": "124",
        "uin": uin,
        "key": key,
        "pass_ticket": pass_ticket,
        "wxtoken": "",
        "appmsg_token": appmsg_token,
        "x5": "0",
    }

    res = requests.get(url, headers=headers, params=params, timeout=3)
    data = json.loads(res.text)
    print(data)
    # 获取信息列表
    msg_list = eval(data.get("general_msg_list")).get("list", [])
    for i in msg_list:
        # 去除文字链接
        try:
            # 文章标题
            title = i["app_msg_ext_info"]["title"].replace(',', '，')
            # 文章摘要
            digest = i["app_msg_ext_info"]["digest"].replace(',', '，')
            # 文章链接
            url = i["app_msg_ext_info"]["content_url"].replace("\", "").replace("http", "https")
            # 文章发布时间
            date = i["comm_msg_info"]["datetime"]
            print(title, digest, url, date)
            with open('article.csv', 'a') as f:
                f.write(title + ',' + digest + ',' + url + ',' + str(date) + '
')
        except:
            pass
    # 判断是否可继续翻页 1-可以翻页  0-到底了
    if 1 == data.get("can_msg_continue", 0):
        time.sleep(3)
        parse(__biz, uin, key, pass_ticket, appmsg_token, data["next_offset"])
    else:
        print("爬取完毕")


if __name__ == '__main__':
    # 请求参数
    __biz = input('biz: ')
    uin = input('uin: ')
    key = input('key: ')
    pass_ticket = input('passtick: ')
    # 解析函数
    parse(__biz, uin, key, pass_ticket, appmsg_token="", offset="0")

　　数据：

　　

3.另外一个版本

import requests

import time
import json
import os
import pdfkit


class mp_spider(object):

    def __init__(self):
        self.config = pdfkit.configuration(wkhtmltopdf='C:/Program Files/wkhtmltopdf/bin/wkhtmltopdf.exe')
        self.offset = 0
        self.count = 0
        self.base_url = 'https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&__biz=MzAwMjQwODIwNg==&f=json&offset={}&count=10&is_ok=1&scene=124&uin=MTIyOTkzMzgyMA%3D%3D&key=7cabb994f4d85a88ad37c1ec41ddde6234e76a1f1e69b178052bc99ccdf724f77700b28cea9e242cc98e517bd2537122fdc7a65a601e36f438b33e31e183f64dd9519beed36d892cc0a31855f1c649d6&pass_ticket=n6xnvQjzn4yfkjScc%2FSoVi4SkEgzf4z0airW6Ue14zIDNH98t%2Fr62k2KszUJ1qNv&wxtoken=&appmsg_token=960_mNI0W0CuVRuEpG7GsxB7f7pUUrO2CWW_iib4ww~~&x5=0&f=json'
        self.headers = {
            'Host': 'mp.weixin.qq.com',
            'Connection': 'keep-alive',
            'Accept': '*/*',
            'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36 MicroMessenger/6.5.2.501 NetType/WIFI WindowsWechat QBCore/3.43.884.400 QQBrowser/9.0.2524.400',
            'X-Requested-With': 'XMLHttpRequest',
            'Referer': 'https://mp.weixin.qq.com/mp/profile_ext?action=home&__biz=MjM5MTQ4NjA3Nw==&scene=124&uin=MjA2MDM3NTU%3D&key=2b903b9a7252346947b8c8bec6a8e97ea469a66c7c55196aec680d36fef8d99bdd51ba33c76a8d0e5655e5186714a09c18bdc873bdac2350ffd215c1d3cb331a3f67f0dcc00984035cbaacc19e1ef3e2&devicetype=Windows+10&version=62060344&lang=zh_CN&a8scene=7&pass_ticket=jAFRJRtWRdJcSXta5fiYsjBqfK6vqTIYWrULumuK5sc%3D&winzoom=1',
            'Accept-Encoding': 'gzip, deflate',
            'Accept-Language': 'zh-CN,zh;q=0.8,en-us;q=0.6,en;q=0.5;q=0.4',
            'Cookie': 'wxuin=1229933820; devicetype=Windows10; version=6206021f; lang=zh_CN; pass_ticket=n6xnvQjzn4yfkjScc/SoVi4SkEgzf4z0airW6Ue14zIDNH98t/r62k2KszUJ1qNv; wap_sid2=CPyZvcoEElwzdm5YaDByenY3S2dzYlJtdXFDQVJYbmZKUERuM2I5elhMb3NxMVZqX3FCTDVYaFJ2Rkd2RktMdm9KajV3TWU5T3YyTTVfUG5zZ2llWko0cW5aMzBiY0FEQUFBfjCo9fLYBTgNQJVO'
        }

    def request_data(self):
        response = requests.get(self.base_url.format(self.offset), headers=self.headers)
        if 200 == response.status_code:
            self.parse_data(response.text)

    def parse_data(self, response_data):

        all_datas = json.loads(response_data)

        if 0 == all_datas['ret']:
            if 1 == all_datas['can_msg_continue']:
                summy_datas = all_datas['general_msg_list']
                datas = json.loads(summy_datas)['list']
                for data in datas:
                    try:
                        title = data['app_msg_ext_info']['title']
                        title_child = data['app_msg_ext_info']['digest']
                        article_url = data['app_msg_ext_info']['content_url']
                        cover = data['app_msg_ext_info']['cover']
                        copyright = data['app_msg_ext_info']['copyright_stat']
                        copyright = '原创文章_' if copyright == 11 else '非原创文章_'
                        self.count = self.count + 1
                        print('第【{}】篇文章'.format(self.count), copyright, title, title_child, article_url, cover)
                        self.creat_pdf_file(article_url, '{}_{}'.format(copyright, title))
                    except:
                        continue

                time.sleep(3)
                self.offset = all_datas['next_offset']  # 下一页的偏移量
                self.request_data()
            else:
                exit('数据抓取完毕！')
        else:
            exit('数据抓取出错:' + all_datas['errmsg'])

    def creat_pdf_file(self, url, title):
        try:
            file = 'D:/store/file2/{}.pdf'.format(title)
            if not os.path.exists(file):  # 过滤掉重复文件
                pdfkit.from_url(url, file)

        except Exception as e:
            print(e)


if __name__ == '__main__':
    d = mp_spider()
    d.request_data()

2.手机版

　　

　　把url和header都copy过来

url='https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&__biz=MzI5MzQxMDc4NQ==&f=json&offset=10&count=10&is_ok=1&scene=124&uin=777&key=777&pass_ticket=YJ6cxPlh48WznjIK5i8RmTISv5IBx6jmNi31U6yUX4zzDc%2B1Z96CXE1fgDusy%2BQe&wxtoken=&appmsg_token=1007_KF456mIhy7Z%252Bq0p5c8hIvqc37qg6tuqlZ0NWtg~~&x5=0&f=json'

#请求头的参数都要带
headers= {
    'Host': 'mp.weixin.qq.com',
    'User-Agent': 'Mozilla/5.0 (Linux; Android 5.1.1; SM-G9350 Build/LMY48Z) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36 MicroMessenger/6.6.7.1321(0x26060736) NetType/WIFI Language/zh_CN',
    'Accept-Language': 'zh-CN,en-US;q=0.8',
    'Cookie': 'rewardsn=; wxtokenkey=777; wxuin=3367222304; devicetype=android-22; version=26060736; lang=zh_CN; pass_ticket=YJ6cxPlh48WznjIK5i8RmTISv5IBx6jmNi31U6yUX4zzDc+1Z96CXE1fgDusy+Qe; wap_sid2=CKD4zsUMElxJQVdKa2lUUnVZS0VhbnY2WGdhTEhfbFdMT3h5NndGM1Bjd2RpQkJUYnBUVmdVMVpmS3BOYkpQMENzS21fbXNSV3BWa2s1VV9LSkdmT2dZbEp0ZTZpdThEQUFBfjCsq8nmBTgNQJVO'
}

　　

　　这样就拿到了数据：

　　

import requests

url = 'https://mp.weixin.qq.com/mp/profile_ext' 
      '?action=home' 
      '&__biz=MzA5MTAxMjEyMQ==' 
      '&scene=126' 
      '&bizpsid=0' 
      '&devicetype=android-23' 
      '&version=2607033c' 
      '&lang=zh_CN' 
      '&nettype=WIFI' 
      '&a8scene=3' 
      '&pass_ticket=LvcLsR1hhcMXdxkZjCN49DcQiOsCdoeZdyaQP3m5rwXkXVN7Os2r9sekOOQULUpL' 
      '&wx_header=1'


headers ='''
Host: mp.weixin.qq.com

Connection: keep-alive

User-Agent: Mozilla/5.0 (Linux; Android 6.0.1; OPPO R9s Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/6.2 TBS/044405 Mobile Safari/537.36 MMWEBID/5576 MicroMessenger/6.7.3.1360(0x2607033C) NetType/WIFI Language/zh_CN Process/toolsmp

x-wechat-key: d2bc6fe213fd0db717e11807caca969ba1d7537e57fc89f64500a774dba05a4f1a83ae58a3d039efc6403b3fa70ebafb52cfd737b350b58d0dca366b5daf92027aaefcb094932df5a18c8764e98703dc

x-wechat-uin: MTA1MzA1Nzk4Mw%3D%3D

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,image/wxpic,image/sharpp,image/apng,image/tpg,/;q=0.8

Accept-Encoding: gzip, deflate

Accept-Language: zh-CN,en-US;q=0.8

Q-UA2: QV=3&PL=ADR&PR=WX&PP=com.tencent.mm&PPVN=6.7.3&TBSVC=43620&CO=BK&COVC=044405&PB=GE&VE=GA&DE=PHONE&CHID=0&LCID=9422&MO= OPPOR9s &RL=1080*1920&OS=6.0.1&API=23

Q-GUID: edb298c301f35e6c59298f2313b788cb

Q-Auth: 31045b957cf33acf31e40be2f3e71c5217597676a9729f1b
'''


def headers_to_dict(headers):
    """
    将字符串
    '''
    Host: mp.weixin.qq.com
    Connection: keep-alive
    Cache-Control: max-age=
    '''
    转换成字典对象
    {
        "Host": "mp.weixin.qq.com",
        "Connection": "keep-alive",
        "Cache-Control":"max-age="
    }
    :param headers: str
    :return: dict
    """
    headers = headers.split("
")
    d_headers = dict()
    for h in headers:
        if h:
            k, v = h.split(":", 1)
            d_headers[k] = v.strip()
    return d_headers


# with open("weixin_history.html", "w", encoding="utf-8") as f:
#     f.write(response.text)


def extract_data(html_content):
    """
    从html页面中提取历史文章数据
    :param html_content 页面源代码
    :return: 历史文章列表
    """
    import re
    import html
    import json

    rex = "msgList = '({.*?})'"  # 正则表达
    pattern = re.compile(pattern=rex, flags=re.S)
    match = pattern.search(html_content)
    if match:
        data = match.group(1)
        data = html.unescape(data)  # 处理转义
        # print('data: {}'.format(data))
        data = json.loads(data)
        articles = data.get("list")

        return articles


def crawl():
    """
     爬取文章
    :return:
    """
    response = requests.get(url, headers=headers_to_dict(headers), verify=False)
    print(response.text)
    if '<title>验证</title>' in response.text:
        raise Exception("获取微信公众号文章失败，可能是因为你的请求参数有误，请重新获取")
    data = extract_data(response.text)
    for item in data:
        print(item['app_msg_ext_info'])

if __name__ == '__main__':
    crawl()

关于微信接口可参考：

　　https://blog.csdn.net/wangjiakang12306/article/details/88862462