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Analysis of ideas on how python crawls the permanent links of Sogou WeChat public account articles

零到壹度
零到壹度Original
2018-04-04 11:51:227852browse


This article mainly introduces the idea analysis of how python crawls the permanent links of Sogou WeChat official account articles. The editor thinks it is quite good. Now I will share it with you and give it to everyone. Let’s all use it as a reference. Let’s follow the editor to have a look.

This article mainly explains the ideas, please solve the code part by yourself

  • Sogou WeChat search to obtain public accounts and articles

  • Get the permanent link through the WeChat public platform

  • python+scrapy framework

  • mysql database storage + reading public account


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Analysis of ideas on how python crawls the permanent links of Sogou WeChat public account articles

Analysis of ideas on how python crawls the permanent links of Sogou WeChat public account articles
Analysis of ideas on how python crawls the permanent links of Sogou WeChat public account articles
Here you can achieve the transformation permanent link

Code part

def parse(self, response):
            item = SougouItem()
            item["title"] = response.xpath('//title/text()').extract_first()
            print("**"*5, item["title"],"**"*5)
            name = input("----------请输入需要搜索的信息:")
            print(name)
            url = "http://weixin.sogou.com/weixin?query="+name+"&type=2&page=1&ie=utf8"
            yield scrapy.Request(url=url, callback=self.parse_two, meta={"name":name})

Sogou Access frequency may appear too fast in WeChat, resulting in the need to enter a verification code

 def parse_two(self, response):
     print(response.url)
     name = response.meta["name"]
     resp = response.xpath('//ul[@class="news-list"]/li')
     s = 1
     # 判断url 是否是需要输入验证码
     res = re.search("from", response.url)     # 需要验证码验证
     if res:
         print(response.url)
         img = response.xpath('//img/@src').extract()
         print(img)
         url_img = "http://weixin.sogou.com/antispider/"+ img[1]
         print(url_img)
         url_img = requests.get(url_img).content         with open("urli.jpg", "wb") as f:
             f.write(url_img)             # f.close()
         img = input("请输入验证码:")
         print(img)
         url = response.url
         r = re.search(r"from=(.*)",url).group(1)
         print(r)
         postData = {"c":img,"r":r,"v":"5"}
         url = "http://weixin.sogou.com/antispider/thank.php"
         yield scrapy.FormRequest(url=url, formdata=postData, callback=self.parse_two,meta={"name":name})     
         # 不需要验证码验证
     else:   
        for res, i in zip(resp, range(1, 10)):
             item = SougouItem()
             item["url"] = res.xpath('.//p[1]/a/@href').extract_first()
             item["name"] = name
             print("第%d条" % i)             # 转化永久链接
             headers = {"Host": "mp.weixin.qq.com",                        
             "Connection": "keep-alive",                        
             "Accept": "application/json, text/javascript, */*; q=0.01",                        
             "X-Requested-With": "XMLHttpRequest",                        
             "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",                        
             "Referer": "https://mp.weixin.qq.com/cgi-bin/appmsg?t=media/appmsg_edit_v2&action=edit&isNew=1&type=10&token=938949250&lang=zh_CN",                        
             "Accept-Encoding": "gzip, deflate, br",                        
             "Accept-Language": "zh-CN,zh;q=0.9",                        
             "Cookie": "noticeLoginFlag=1; pgv_pvi=5269297152; pt2gguin=o1349184918; RK=ph4smy/QWu; ptcz=f3eb6ede5db921d0ada7f1713e6d1ca516d200fec57d602e677245490fcb7f1e; pgv_pvid=1033302674; o_cookie=1349184918; pac_uid=1_1349184918; ua_id=4nooSvHNkTOjpIpgAAAAAFX9OSNcLApfsluzwfClLW8=; mm_lang=zh_CN; noticeLoginFlag=1; remember_acct=Liangkai318; rewardsn=; wxtokenkey=777; pgv_si=s1944231936; uuid=700c40c965347f0925a8e8fdcc1e003e; ticket=023fc8861356b01527983c2c4765ef80903bf3d7; ticket_id=gh_6923d82780e4; cert=L_cE4aRdaZeDnzao3xEbMkcP3Kwuejoi; data_bizuin=3075391054; bizuin=3208078327; data_ticket=XrzOnrV9Odc80hJLtk8vFjTLI1vd7kfKJ9u+DzvaeeHxZkMXbv9kcWk/Pmqx/9g7; slave_sid=SWRKNmFyZ1NkM002Rk9NR0RRVGY5VFdMd1lXSkExWGtPcWJaREkzQ1BESEcyQkNLVlQ3YnB4OFNoNmtRZzdFdGpnVGlHak9LMjJ5eXBNVEgxZDlZb1BZMnlfN1hKdnJsV0NKallsQW91Zjk5Y3prVjlQRDNGYUdGUWNFNEd6eTRYT1FSOEQxT0MwR01Ja0Vo; slave_user=gh_6923d82780e4; xid=7b2245140217dbb3c5c0a552d46b9664; openid2ticket_oTr5Ot_B4nrDSj14zUxlXg8yrzws=D/B6//xK73BoO+mKE2EAjdcgIXNPw/b5PEDTDWM6t+4="}
     respon = requests.get(url=item["url"]).content
     gongzhongh = etree.HTML(respon).xpath('//a[@id="post-user"]/text()')[0]             
     # times = etree.HTML(respon).xpath('//*[@id="post-date"]/text()')[0]
     title_one = etree.HTML(respon).xpath('//*[@id="activity-name"]/text()')[0].split()[0]
     print(gongzhongh, title_one)
     item["tit"] = title_one
     item["gongzhongh"] = gongzhongh             
     # item["times"] = times
     url = "https://mp.weixin.qq.com/cgi-bin/searchbiz?action=search_biz&token=938949250&lang=zh_CN&f=json&ajax=1&query=" + gongzhongh + "&begin=0&count=5"
     # wenzhang_url = "https://mp.weixin.qq.com/cgi-bin/appmsg?token=610084158&lang=zh_CN&f=json&ajax=1&random=0.7159556076774083&action=list_ex&begin=0&count=5&query=" + item["tit"] + "&fakeid=MzA5MzMxMDk3OQ%3D%3D&type=9"
     resp = requests.get(url=url, headers=headers).content
     print(resp)
     faskeids = json.loads(resp.decode("utf-8"))             
     try:
            list_fask = faskeids["list"]             except Exception as f:
     print("**********[INFO]:请求失败,登陆失败, 请重新登陆*************")                
     return
     for fask in list_fask:
                 fakeid = fask["fakeid"]
                 nickname = fask["nickname"]                 if nickname == item["gongzhongh"]:
                     url = "https://mp.weixin.qq.com/cgi-bin/appmsg?token=938949250&f=json&action=list_ex&count=5&query=&fakeid=" + fakeid + "&type=9"
                     # url = "https://mp.weixin.qq.com/cgi-bin/appmsg?token=1773340085&lang=zh_CN&f=json&ajax=1&action=list_ex&begin=0&count=5&query=" + item["tit"] + "&fakeid=MzA5MzMxMDk3OQ%3D%3D&type=9"
                     url = "https://mp.weixin.qq.com/cgi-bin/appmsg?token=938949250&f=json&ajax=1&action=list_ex&begin=0&count=5&query=" + item["tit"] +"&fakeid=" + fakeid +"&type=9"
                     resp = requests.get(url=url, headers=headers).content
                     app = json.loads(resp.decode("utf-8"))["app_msg_list"]
                     item["aid"] = app["aid"]
                     item["appmsgid"] = app["appmsgid"]
                     item["cover"] = app["cover"]
                     item["digest"] = app["digest"]
                     item["url_link"] = app["link"]
                     item["tit"] = app["title"]
                     print(item)
                     time.sleep(10)                 #     time.sleep(5)
                 #     dict_wengzhang = json.loads(resp.decode("utf-8"))
                 #     app_msg_list = dict_wengzhang["app_msg_list"]
                 #     print(len(app_msg_list))
                 #     for app in app_msg_list:
                 #         print(app)
                 #         title = app["title"]
                 #         if title == item["tit"]:
                 #             item["url_link"] = app["link"]
                 #             updata_time = app["update_time"]
                 #             item["times"] = time.strftime("%Y-%m-%d %H:%M:%S", updata_time)
                 #             print("最终链接为:", item["url_link"])
                 #             yield item
                 #         else:
                 #             print(app["title"], item["tit"])
                 #             print("与所选文章不同放弃")
                 #             # item["tit"] = app["title"]
                 #             # item["url_link"] = app["link"]
                 #             # yield item
                 # else:
                 #     print(nickname, item["gongzhongh"])
                 #     print("与所选公众号不一致放弃")
             # time.sleep(100)
             # yield item
             if response.xpath('//a[@class="np"]'):
                 s += 1
                 url = "http://weixin.sogou.com/weixin?query="+name+"&type=2&page="+str(s)                 # time.sleep(3)
                 yield scrapy.Request(url=url, callback=self.parse_two, meta={"name": name})

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