JD-SHOPPER/Seckill.py

import random
import time
import functools
from lxml import etree
from logger import logger
from login import SpiderSession, QrLogin
from message import sendMessage
from timer import Timer
from config import global_config
from concurrent.futures import ProcessPoolExecutor
from exception import SKException
from util import (
    parse_json,
    wait_some_time,
)




class Seckiller(object):
    def __init__(self):
        self.spider_session = SpiderSession()
        self.spider_session.load_cookies_from_local()

        self.qrlogin = QrLogin(self.spider_session)

        # 初始化信息
        self.sku_id = global_config.getRaw('config', 'sku_id')
        self.seckill_num = eval(global_config.getRaw('settings', 'buy_amount'))
        self.seckill_init_info = dict()
        self.seckill_url = dict()
        self.seckill_order_data = dict()
        self.timers = Timer()

        self.session = self.spider_session.get_session()
        self.user_agent = self.spider_session.user_agent
        self.nick_name = None

    def login_by_qrcode(self):
        """
        二维码登陆
        :return:
        """
        if self.qrlogin.is_login:
            logger.info('登录成功')
            return

        self.qrlogin.login_by_qrcode()

        if self.qrlogin.is_login:
            self.nick_name = self.get_username()
            self.spider_session.save_cookies_to_local(self.nick_name)
        else:
            raise SKException("二维码登录失败！")

    def check_login(func):
        """
        用户登陆态校验装饰器。若用户未登陆，则调用扫码登陆
        """
        @functools.wraps(func)
        def new_func(self, *args, **kwargs):
            if not self.qrlogin.is_login:
                logger.info("{0} 需登陆后调用，开始扫码登陆".format(func.__name__))
                self.login_by_qrcode()
            return func(self, *args, **kwargs)
        return new_func

    @check_login
    def reserve(self):
        """
        预约
        """
        self._reserve()

    @check_login
    def seckill(self):
        """
        抢购
        """
        self._seckill()

    @check_login
    def seckill_by_proc_pool(self):
        """
        多进程进行抢购
        work_count：进程数量
        """
        work_count = eval(global_config.getRaw('settings', 'work_count'))
        with ProcessPoolExecutor(work_count) as pool:
            for i in range(work_count):
                pool.submit(self.seckill)

    def _reserve(self):
        """
        预约
        """
        while True:
            try:
                self.make_reserve()
                break
            except Exception as e:
                logger.info('预约发生异常!', e)
            wait_some_time()

    def _seckill(self):
        """
        抢购
        """
        while True:
            try:
                self.request_seckill_url()
                while True:
                    self.request_seckill_checkout_page()
                    self.submit_seckill_order()
            except Exception as e:
                logger.info('抢购发生异常，稍后继续执行！', e)
            wait_some_time()


    def make_reserve(self):
        """商品预约"""
        logger.info('商品名称:{}'.format(self.get_sku_title()[:40]+" ......"))
        url = 'https://yushou.jd.com/youshouinfo.action?'
        payload = {
            'callback': 'fetchJSON',
            'sku': self.sku_id,
            '_': str(int(time.time() * 1000)),
        }
        headers = {
            'User-Agent': self.user_agent,
            'Referer': 'https://item.jd.com/{}.html'.format(self.sku_id),
        }
        resp = self.session.get(url=url, params=payload, headers=headers)
        resp_json = parse_json(resp.text)
        reserve_url = resp_json.get('url')
        self.timers.start()
        while True:
            try:
                self.session.get(url='https:' + reserve_url)
                logger.info('预约成功，已获得抢购资格 / 您已成功预约过了，无需重复预约')
                if global_config.getRaw('messenger', 'enable') == 'true':
                    success_message = "预约成功，已获得抢购资格 / 您已成功预约过了，无需重复预约"
                    sendMessage(success_message)
                break
            except Exception as e:
                logger.error('预约失败正在重试...')

    def get_username(self):
        """获取用户信息"""
        url = 'https://passport.jd.com/user/petName/getUserInfoForMiniJd.action'
        payload = {
            'callback': 'jQuery{}'.format(random.randint(1000000, 9999999)),
            '_': str(int(time.time() * 1000)),
        }
        headers = {
            'User-Agent': self.user_agent,
            'Referer': 'https://order.jd.com/center/list.action',
        }

        resp = self.session.get(url=url, params=payload, headers=headers)

        try_count = 5
        while not resp.text.startswith("jQuery"):
            try_count = try_count - 1
            if try_count > 0:
                resp = self.session.get(url=url, params=payload, headers=headers)
            else:
                break
            wait_some_time()
        # 响应中包含了许多用户信息，现在在其中返回昵称
        # jQuery2381773({"imgUrl":"//storage.360buyimg.com/i.imageUpload/xxx.jpg","lastLoginTime":"","nickName":"xxx","plusStatus":"0","realName":"xxx","userLevel":x,"userScoreVO":{"accountScore":xx,"activityScore":xx,"consumptionScore":xxxxx,"default":false,"financeScore":xxx,"pin":"xxx","riskScore":x,"totalScore":xxxxx}})
        return parse_json(resp.text).get('nickName')

    def get_sku_title(self):
        """获取商品名称"""
        url = 'https://item.jd.com/{}.html'.format(global_config.getRaw('config', 'sku_id'))
        resp = self.session.get(url).content
        x_data = etree.HTML(resp)
        sku_title = x_data.xpath('/html/head/title/text()')
        return sku_title[0]

    def get_seckill_url(self):
        """获取商品的抢购链接
        点击"抢购"按钮后，会有两次302跳转，最后到达订单结算页面
        这里返回第一次跳转后的页面url，作为商品的抢购链接
        :return: 商品的抢购链接
        """
        url = 'https://itemko.jd.com/itemShowBtn'
        payload = {
            'callback': 'jQuery{}'.format(random.randint(1000000, 9999999)),
            'skuId': self.sku_id,
            'from': 'pc',
            '_': str(int(time.time() * 1000)),
        }
        headers = {
            'User-Agent': self.user_agent,
            'Host': 'itemko.jd.com',
            'Referer': 'https://item.jd.com/{}.html'.format(self.sku_id),
        }
        while True:
            resp = self.session.get(url=url, headers=headers, params=payload)
            resp_json = parse_json(resp.text)
            if resp_json.get('url'):
                # https://divide.jd.com/user_routing?skuId=8654289&sn=c3f4ececd8461f0e4d7267e96a91e0e0&from=pc
                router_url = 'https:' + resp_json.get('url')
                # https://marathon.jd.com/captcha.html?skuId=8654289&sn=c3f4ececd8461f0e4d7267e96a91e0e0&from=pc
                seckill_url = router_url.replace(
                    'divide', 'marathon').replace(
                    'user_routing', 'captcha.html')
                logger.info("抢购链接获取成功: %s", seckill_url)
                return seckill_url
            else:
                logger.info("抢购链接获取失败，稍后自动重试")
                wait_some_time()

    def request_seckill_url(self):
        """访问商品的抢购链接（用于设置cookie等"""
        logger.info('用户:{}'.format(self.get_username()))
        logger.info('商品名称:{}'.format(self.get_sku_title()))
        self.timers.start()
        self.seckill_url[self.sku_id] = self.get_seckill_url()
        logger.info('访问商品的抢购连接...')
        headers = {
            'User-Agent': self.user_agent,
            'Host': 'marathon.jd.com',
            'Referer': 'https://item.jd.com/{}.html'.format(self.sku_id),
        }
        self.session.get(
            url=self.seckill_url.get(
                self.sku_id),
            headers=headers,
            allow_redirects=False)

    def request_seckill_checkout_page(self):
        """访问抢购订单结算页面"""
        logger.info('访问抢购订单结算页面...')
        url = 'https://marathon.jd.com/seckill/seckill.action'
        payload = {
            'skuId': self.sku_id,
            'num': self.seckill_num,
            'rid': int(time.time())
        }
        headers = {
            'User-Agent': self.user_agent,
            'Host': 'marathon.jd.com',
            'Referer': 'https://item.jd.com/{}.html'.format(self.sku_id),
        }
        self.session.get(url=url, params=payload, headers=headers, allow_redirects=False)

    def _get_seckill_init_info(self):
        """获取秒杀初始化信息（包括：地址，发票，token）
        :return: 初始化信息组成的dict
        """
        logger.info('获取秒杀初始化信息...')
        url = 'https://marathon.jd.com/seckillnew/orderService/pc/init.action'
        data = {
            'sku': self.sku_id,
            'num': self.seckill_num,
            'isModifyAddress': 'false',
        }
        headers = {
            'User-Agent': self.user_agent,
            'Host': 'marathon.jd.com',
        }
        resp = self.session.post(url=url, data=data, headers=headers)

        resp_json = None
        try:
            resp_json = parse_json(resp.text)
        except Exception:
            raise SKException('抢购失败，返回信息:{}'.format(resp.text))

        return resp_json

    def _get_seckill_order_data(self):
        """生成提交抢购订单所需的请求体参数
        :return: 请求体参数组成的dict
        """
        logger.info('生成提交抢购订单所需参数...')
        # 获取用户秒杀初始化信息
        self.seckill_init_info[self.sku_id] = self._get_seckill_init_info()
        init_info = self.seckill_init_info.get(self.sku_id)
        default_address = init_info['addressList'][0]  # 默认地址dict
        invoice_info = init_info.get('invoiceInfo', {})  # 默认发票信息dict, 有可能不返回
        token = init_info['token']
        data = {
            'skuId': self.sku_id,
            'num': self.seckill_num,
            'addressId': default_address['id'],
            'yuShou': 'true',
            'isModifyAddress': 'false',
            'name': default_address['name'],
            'provinceId': default_address['provinceId'],
            'cityId': default_address['cityId'],
            'countyId': default_address['countyId'],
            'townId': default_address['townId'],
            'addressDetail': default_address['addressDetail'],
            'mobile': default_address['mobile'],
            'mobileKey': default_address['mobileKey'],
            'email': default_address.get('email', ''),
            'postCode': '',
            'invoiceTitle': invoice_info.get('invoiceTitle', -1),
            'invoiceCompanyName': '',
            'invoiceContent': invoice_info.get('invoiceContentType', 1),
            'invoiceTaxpayerNO': '',
            'invoiceEmail': '',
            'invoicePhone': invoice_info.get('invoicePhone', ''),
            'invoicePhoneKey': invoice_info.get('invoicePhoneKey', ''),
            'invoice': 'true' if invoice_info else 'false',
            'password': global_config.get('account', 'payment_pwd'),
            'codTimeType': 3,
            'paymentType': 4,
            'areaCode': '',
            'overseas': 0,
            'phone': '',
            'eid': global_config.getRaw('config', 'eid'),
            'fp': global_config.getRaw('config', 'fp'),
            'token': token,
            'pru': ''
        }

        return data

    def submit_seckill_order(self):
        """提交抢购（秒杀）订单
        :return: 抢购结果 True/False
        """
        url = 'https://marathon.jd.com/seckillnew/orderService/pc/submitOrder.action'
        payload = {
            'skuId': self.sku_id,
        }
        try:
            self.seckill_order_data[self.sku_id] = self._get_seckill_order_data()
        except Exception as e:
            logger.info('抢购失败，无法获取生成订单的基本信息，接口返回:【{}】'.format(str(e)))
            return False

        logger.info('提交抢购订单...')
        headers = {
            'User-Agent': self.user_agent,
            'Host': 'marathon.jd.com',
            'Referer': 'https://marathon.jd.com/seckill/seckill.action?skuId={0}&num={1}&rid={2}'.format(
                self.sku_id, self.seckill_num, int(time.time())),
        }
        resp = self.session.post(
            url=url,
            params=payload,
            data=self.seckill_order_data.get(
                self.sku_id),
            headers=headers)
        resp_json = None
        try:
            resp_json = parse_json(resp.text)
        except Exception as e:
            logger.info('抢购失败，返回信息:{}'.format(resp.text[0: 128]))
            return False
        # 返回信息
        # 抢购失败：
        # {'errorMessage': '很遗憾没有抢到，再接再厉哦。', 'orderId': 0, 'resultCode': 60074, 'skuId': 0, 'success': False}
        # {'errorMessage': '抱歉，您提交过快，请稍后再提交订单！', 'orderId': 0, 'resultCode': 60017, 'skuId': 0, 'success': False}
        # {'errorMessage': '系统正在开小差，请重试~~', 'orderId': 0, 'resultCode': 90013, 'skuId': 0, 'success': False}
        # 抢购成功：
        # {"appUrl":"xxxxx","orderId":820227xxxxx,"pcUrl":"xxxxx","resultCode":0,"skuId":0,"success":true,"totalMoney":"xxxxx"}
        if resp_json.get('success'):
            order_id = resp_json.get('orderId')
            total_money = resp_json.get('totalMoney')
            pay_url = 'https:' + resp_json.get('pcUrl')
            logger.info('抢购成功，订单号:{}, 总价:{}, 电脑端付款链接:{}'.format(order_id, total_money, pay_url))
            if global_config.getRaw('messenger', 'enable') == 'true':
                success_message = "抢购成功，订单号:{}, 总价:{}, 电脑端付款链接:{}".format(order_id, total_money, pay_url)
                sendMessage(success_message)
            return True
        else:
            logger.info('抢购失败，返回信息:{}'.format(resp_json))
            if global_config.getRaw('messenger', 'enable') == 'true':
                error_message = '抢购失败，返回信息:{}'.format(resp_json)
                sendMessage(error_message)
            return False