#coding:utf-8 
import requests 
import urllib3 
import time 
class Zhihu: 
    def __init__(self): 
        self.loginurl='' 
        self.indexurl='https://www.zhihu.com/' 
        self.cookies='' 
        self.headers={ 
            'User-Agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Mobile Safari/537.36' 
         } 
        self.s='' 
        self.posturl='https://www.zhihu.com/login/email' 
    def get_xsrf(self): 
        requests.packages.urllib3.disable_warnings() 
        s =requests.session() 
        self.s=s 
        res = s.get(self.indexurl,headers=self.headers,verify=False) 
        self.cookies=res.cookies 
        return res.cookies['_xsrf'] 
    def get_post(self): 
        data={ 
            "_xsrf":self.get_xsrf(), 
            "password":"wxxxx@", 
            "email":"10000@qq.com", 
            "captcha":self.get_captcha(), 
            'captcha_type': 'en' 
        } 
        print data 
 
        requests.packages.urllib3.disable_warnings() 
        res = self.s.post(self.posturl, headers=self.headers, verify=False,data=data) 
        print res.content 
    def get_captcha(self): 
        t=str(int(time.time())) 
        captcha_url='http://www.zhihu.com/captcha.gif?r=1466595391805&type=login&lang=en' 
        res = self.s.get(captcha_url,headers=self.headers) 
 
        content  =res.content 
        pic=  open('./t1.gif','wb') 
        pic.write(content) 
        pic.close() 
 
        captcha=  raw_input('captcha : ') 
        return captcha 
 
obj = Zhihu() 
obj.get_post()