使用python爬虫模拟12306登录方法

验证码还是要人工识图..

#!/bin/env python
# -*- coding=utf-8 -*-
import ssl
import sys
import urllib2
import random
import httplib
import json
from COOKIElib import LWPCOOKIEJar
import urllib
import re
import getpass
 
reload(sys)
sys.setdefaultencoding(&＃39;UTF8&＃39;)
COOKIEjar = LWPCOOKIEJar()
COOKIEsuppor = urllib2.HTTPCOOKIEProcessor(COOKIEjar)
opener = urllib2.build_opener(COOKIEsuppor, urllib2.HTTPHandler)
urllib2.install_opener(opener)
ssl._create_default_https_cOntext= ssl._create_unverified_context
codeimg = &＃39;https://kyfw.12306.cn/otn/passcodeNew/getPassCodeNew?module=login&rand=sjrand&%s&＃39; % random.random()
 
baner = """
##################################
    12306登录脚本,作者Mr RJL
    python版本:2.7,适用于linux
    验证码输入方式:
    输入问题对应的图片序号,1-8;
    多个以&＃39;,&＃39;分隔.如:1,2,3
##################################
"""
def get(url):
    try:
        request = urllib2.Request(url=url)
        # req.add_header(&＃39;User-Agent&＃39;, &＃39;Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0&＃39;)
        request.add_header("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
        request.add_header(&＃39;X-Requested-With&＃39;, &＃39;xmlHttpRequest&＃39;)
        request.add_header(&＃39;User-Agent&＃39;,
                           &＃39;Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36&＃39;)
        request.add_header(&＃39;Referer&＃39;, &＃39;https://kyfw.12306.cn/otn/login/init&＃39;)
        request.add_header(&＃39;Accept&＃39;, &＃39;*/*&＃39;)
        result = urllib2.urlopen(request).read()
        assert isinstance(result, object)
        return result
    except httplib.error as e:
        print e
        pass
    except urllib2.URLError as e:
        print e
        pass
    except urllib2.HTTPBasicAuthHandler, urllib2.HTTPError:
        print &＃39;error&＃39;
        pass
 
 
def Post(url, data):
    try:
        request = urllib2.Request(url=url, data=urllib.urlencode(data))
        # req.add_header(&＃39;User-Agent&＃39;, &＃39;Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0&＃39;)
        # request = urllib2.Request(ajax_url, urllib.urlencode(dc))
        request.add_header("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
        request.add_header(&＃39;X-Requested-With&＃39;, &＃39;xmlHttpRequest&＃39;)
        request.add_header(&＃39;User-Agent&＃39;,
                           &＃39;Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36&＃39;)
        request.add_header(&＃39;Referer&＃39;, &＃39;https://kyfw.12306.cn/otn/login/init&＃39;)
        request.add_header(&＃39;Accept&＃39;, &＃39;*/*&＃39;)
        # request.add_header(&＃39;Accept-Encoding&＃39;, &＃39;gzip, deflate&＃39;)
        result = urllib2.urlopen(request).read()
        return result
    except httplib.error as e:
        return e
    except urllib2.URLError as e:
        return e
    except urllib2.HTTPBasicAuthHandler, urllib2.HTTPError:
        return &＃39;error&＃39;
 
 
def COOKIEtp():
    stoidinput("获取COOKIE")
    Url = "https://kyfw.12306.cn/otn/login/init"
    get(Url)
    for index, c in enumerate(COOKIEjar):
        stoidinput(c)
 
 
def getImg():
    stoidinput("下载验证码...")
    result = get(codeimg)
    try:
        if open(&＃39;/tmp/tkcode&＃39;, &＃39;wb&＃39;).write(result) :
            import os
            os.system("oeg /tmp/tkcode &")
        else:
            return False
    except OSError as e:
        print e
        pass
 
 
def stoidinput(text):
    """
    正常信息输出
    :param text: 
    :return: 
    """
    print "\033[34m[*]\033[0m %s " % text
 
 
def errorinput(text):
    """
    错误信息输出
    :param text: 
    :return: 
    """
    print "\033[32m[!]\033[0m %s " % text
    return False
 
 
def codexy():
    """
    获取验证码
    :return: str
    """
     
    Ofset = raw_input("[*] 请输入验证码: ")
    select = Ofset.split(&＃39;,&＃39;)
    global randCode
    post = []
    offsetsX = 0  # 选择的答案的left值,通过浏览器点击8个小图的中点得到的,这样基本没问题
    offsetsY = 0  # 选择的答案的top值
    for ofset in select:
        if ofset == &＃39;1&＃39;:
            offsetsY = 46
            offsetsX = 42
        elif ofset == &＃39;2&＃39;:
            offsetsY = 46
            offsetsX = 105
        elif ofset == &＃39;3&＃39;:
            offsetsY = 45
            offsetsX = 184
        elif ofset == &＃39;4&＃39;:
            offsetsY = 48
            offsetsX = 256
        elif ofset == &＃39;5&＃39;:
            offsetsY = 36
            offsetsX = 117
        elif ofset == &＃39;6&＃39;:
            offsetsY = 112
            offsetsX = 115
        elif ofset == &＃39;7&＃39;:
            offsetsY = 114
            offsetsX = 181
        elif ofset == &＃39;8&＃39;:
            offsetsY = 111
            offsetsX = 252
        else:
            pass
        post.append(offsetsX)
        post.append(offsetsY)
    randCode = str(post).replace(&＃39;]&＃39;, &＃39;&＃39;).replace(&＃39;[&＃39;, &＃39;&＃39;).replace("&＃39;", &＃39;&＃39;).replace(&＃39; &＃39;, &＃39;&＃39;)
 
 
def login(user, passwd):
    randurl = &＃39;https://kyfw.12306.cn/otn/passcodeNew/checkRandCodeAnsyn&＃39;
    logurl = &＃39;https://kyfw.12306.cn/otn/login/loginAysnSuggest&＃39;
    surl = &＃39;https://kyfw.12306.cn/otn/login/userLogin&＃39;
    geturl = &＃39;https://kyfw.12306.cn/otn/index/initMy12306&＃39;
    randdata = {
        "randCode": randCode,
        "rand": "sjrand"
    }
    logdata = {
        "loginUserDTO.user_name": user,
        "userDTO.password": passwd,
        "randCode": randCode
    }
    ldata = {
        "_json_att": None
    }
    fresult = json.loads(Post(randurl, randdata), encoding=&＃39;utf8&＃39;)
    checkcode = fresult[&＃39;data&＃39;][&＃39;msg&＃39;]
    if checkcode == &＃39;FALSE&＃39;:
        errorinput("验证码有误,请重试")
    else:
        stoidinput("验证码通过,开始登录..")
        try:
            tresult = json.loads(Post(logurl, logdata), encoding=&＃39;utf8&＃39;)
            if tresult[&＃39;data&＃39;].__len__() == 0:
                errorinput("登录失败: %s" % tresult[&＃39;messages&＃39;][0])
            else:
 
                stoidinput("登录成功")
                sult = Post(surl, ldata)
                getUserinfo()
        except ValueError as e:
            errorinput(e)
 
 
def getUserinfo():
    """
    登录成功后,显示用户名
    :return:
    """
    url = &＃39;https://kyfw.12306.cn/otn/modifyUser/initQueryUserInfo&＃39;
    data = dict(_json_att=None)
    result = Post(url, data)
    userinfo = result
    name = r&＃39;&＃39;
    try:
        stoidinput("欢迎 %s 登录" % re.search(name, result).group(1))
    except AttributeError:
        pass
 
 
def main():
    user = raw_input("[+] 用户名(用户名/邮箱/手机): ")
    passwd = getpass.getpass("[+] 密码: ")
    if user == &＃39;&＃39; or passwd == &＃39;&＃39;:
        errorinput("用户名或密码不能为空!")
    else:
        COOKIEtp()
        getImg()
        codexy()
        login(user, passwd)
def logout():
    url = &＃39;https://kyfw.12306.cn/otn/login/loginOut&＃39;
    result = get(url)
    if result:
        stoidinput("已退出")
    else:
        errorinput("退出失败")
 
if __name__ == "__main__":
    print baner
    main()
    logout()

以上就是使用python爬虫模拟12306登录方法的详细内容，更多请关注 第一PHP社区 其它相关文章！