调用第三方打码平台破解图片验证码

云打码平台处理验证码的实现流程：

1. 对携带验证码的页面数据进行抓取
2. 可以将页面数据中验证码进行解析，验证码图片下载到本地
3. 可以将验证码图片提交给三方平台进行识别，返回验证码图片上的数据值

# 云打码平台api
import http.client, mimetypes, urllib, json, time, requests


class YDMHttp:
    apiurl = 'http://api.yundama.com/api.php'
    username = ''
    password = ''
    appid = ''
    appkey = ''

    def __init__(self, username, password, appid, appkey):
        self.username = username
        self.password = password
        self.appid = str(appid)
        self.appkey = appkey

    def request(self, fields, files=[]):
        response = self.post_url(self.apiurl, fields, files)
        response = json.loads(response)
        return response

    def balance(self):
        data = {'method': 'balance', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey}
        response = self.request(data)
        if (response):
            if (response['ret'] and response['ret'] < 0):
                return response['ret']
            else:
                return response['balance']
        else:
            return -9001

    def login(self):
        data = {'method': 'login', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey}
        response = self.request(data)
        if (response):
            if (response['ret'] and response['ret'] < 0):
                return response['ret']
            else:
                return response['uid']
        else:
            return -9001

    def upload(self, filename, codetype, timeout):
        data = {'method': 'upload', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey, 'codetype': str(codetype), 'timeout': str(timeout)}
        file = {'file': filename}
        response = self.request(data, file)
        if (response):
            if (response['ret'] and response['ret'] < 0):
                return response['ret']
            else:
                return response['cid']
        else:
            return -9001

    def result(self, cid):
        data = {'method': 'result', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey, 'cid': str(cid)}
        response = self.request(data)
        return response and response['text'] or ''

    def decode(self, filename, codetype, timeout):
        cid = self.upload(filename, codetype, timeout)
        if (cid > 0):
            for i in range(0, timeout):
                result = self.result(cid)
                if (result != ''):
                    return cid, result
                else:
                    time.sleep(1)
            return -3003, ''
        else:
            return cid, ''

    def report(self, cid):
        data = {'method': 'report', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey, 'cid': str(cid), 'flag': '0'}
        response = self.request(data)
        if (response):
            return response['ret']
        else:
            return -9001

    def post_url(self, url, fields, files=[]):
        for key in files:
            files[key] = open(files[key], 'rb')
        res = requests.post(url, files=files, data=fields)
        return res.text

def getCode(codeImg):
    # 用户名
    username    = 'wualin'

    # 密码
    password    = '09212427'

    # 软件ＩＤ，开发者分成必要参数。登录开发者后台【我的软件】获得！
    appid       = 6524

    # 软件密钥，开发者分成必要参数。登录开发者后台【我的软件】获得！
    appkey      = '4f63d68488c9f0b1f090f7ccbe79e399'

    # 图片文件
    filename    = codeImg

    # 验证码类型，# 例：1004表示4位字母数字，不同类型收费不同。请准确填写，否则影响识别率。在此查询所有类型 http://www.yundama.com/price.html
    codetype    = 3000

    # 超时时间，秒
    timeout     = 20

    # 检查
    if (username == 'username'):
        print('请设置好相关参数再测试')
    else:
        # 初始化
        yundama = YDMHttp(username, password, appid, appkey)

        # 登陆云打码
        uid = yundama.login()
        print('uid: %s' % uid)

        # 查询余额
        balance = yundama.balance()
        print('balance: %s' % balance)

        # 开始识别，图片路径，验证码类型ID，超时时间（秒），识别结果
        cid, result = yundama.decode(filename, codetype, timeout)
        print('cid: %s, result: %s' % (cid, result))
        return result

调用云打码平台api破解验证码进行豆瓣电影登陆

import discern_code
# 获取验证码图片保存到本地
import requests
from lxml import etree
import re

url = 'https://www.douban.com/accounts/login?source=movie'
headers = {
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36'
}
page_text = requests.get(url=url,headers=headers).text

# 使用xpath解析出验证码图片的url
tree = etree.HTML(page_text)
codeImg_url = tree.xpath('//*[@id="captcha_image"]/@src')[0]

# 获取到图片的二进制数据保存到本地
code_img = requests.get(url=codeImg_url,headers=headers)
with open('code.png','wb') as f:
    f.write(code_img.content)
code = discern_code.getCode('code.png')

# 获取captcha-id的值
c_id = re.findall('<img id="captcha_image" .*?id=(.*?)&amp.*?',page_text)[0]
login_url = 'https://accounts.douban.com/login'
data = {
    'source': 'movie',
    'redir': 'https://movie.douban.com/',
    'form_email': '1032298871@qq.com',
    'form_password': '09212427zlh',
    'captcha-solution': code,
    'captcha-id': c_id,
    'login': '登录',
}
response = requests.post(url=login_url,data=data,headers=headers)
with open('豆瓣.html','w',encoding='utf-8') as f:
    f.write(response.text)