train.py

# encoding=utf8
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
import requests


STATION_TRAIN_CODE = 'G1952'
TRAIN_DATE = '2017-01-17'
subject = u'火车票余票提醒'
smtpserver = 'smtp.163.com'
username = 'xt2@163.com'
send_from = username
pwd = ''
send_to = ['xt@foxmail.com']
GET_DATA_SLEEP_SECONDS = 60

def get_url(train_date):
    base_url = 'https://kyfw.12306.cn/otn/leftTicket/queryA?leftTicketDTO.train_date=%s&leftTicketDTO.from_station=SHH&leftTicketDTO.to_station=KFF&purpose_codes=ADULT'
    return base_url % train_date


def get_need_train_info(all_train_info_list, station_train_code):
    for item in all_train_info_list:
        if item['queryLeftNewDTO'].get('station_train_code') == station_train_code:
            return item['queryLeftNewDTO']
    return None

# {"train_no":"5l000G195200",
# "station_train_code":"G1952",
# "start_station_telecode":"AOH",
# "start_station_name":"上海虹桥",
# "end_station_telecode":"TNV","end_station_name":"太原南",
# "from_station_telecode":"AOH","from_station_name":"上海虹桥",
# "to_station_telecode":"KBF","to_station_name":"开封北",
# "start_time":"08:16","arrive_time":"12:47","day_difference":"0",
# "train_class_name":"","lishi":"04:31","canWebBuy":"N","lishiValue":"271"
# ,"yp_info":"1TTzgiSp8yjQoKNO7cKClG%2BSD86iRpNeEVUqylXlyXI0mC0V",
# "control_train_day":"20300303","start_train_date":"20170117",
# "seat_feature":"O3M393","yp_ex":"O0M090","train_seat_feature":"3",
# "seat_types":"OM9","location_code":"HY","from_station_no":"01",
# "to_station_no":"10","control_day":29,"sale_time":"1330",
# "is_support_card":"0","controlled_train_flag":"0",
# "controlled_train_message":"正常车次，不受控",
# "train_type_code":"2","start_province_code":"33",
# "start_city_code":"0712","end_province_code":"02",
# "end_city_code":"0405",
# "yz_num":"--","rz_num":"--","yw_num":"--","rw_num":"--","gr_num":"--","zy_num":"无","ze_num":"无","tz_num":"--",
# "gg_num":"--","yb_num":"--","wz_num":"--","qt_num":"--","swz_num":"无"},
# "secretStr":"","buttonTextInfo":"预订"}
import datetime
def log_fo_file(info):
    f=open('train.text','a+')
    dt = datetime.datetime.now()
    print >>f, '%s_%s' % (dt, info)


def get_info(station_train_code, train_date):
    url = get_url(train_date)
    r = requests.get(url, verify=False)
    all_train_info_list = r.json()['data']
    train_info = get_need_train_info(all_train_info_list, station_train_code)
    yidengzuo = train_info.get('zy_num')
    erdengzuo = train_info.get('ze_num')
    info_y = u'车次 %s 一等座数量：%s' % (STATION_TRAIN_CODE, yidengzuo)
    info_e = u'车次 %s 二等座数量：%s' % (STATION_TRAIN_CODE, erdengzuo)
    log_fo_file(info_y)
    log_fo_file(info_e)
    data = {
        'yidengzuo': yidengzuo,
        'erdengzuo': erdengzuo,
    }
    return data, info_y, info_e


def is_should_notify(data, info_y, info_e):
    if data['erdengzuo'] not in [u'无', u"--"]:
        return True
    else:
        return False


import sys
import os
import smtplib
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE, formatdate



def send_mail(send_from, send_to, subject, text, files,
              smtpserver, sender_username, sender_password):
    assert isinstance(send_to, list)

    msg = MIMEMultipart()
    msg['From'] = send_from
    msg['To'] = COMMASPACE.join(send_to)
    msg['Date'] = formatdate(localtime=True)
    msg['Subject'] = subject

    msg.attach(MIMEText(text))

    for f in files or []:
        with open(f, "rb") as fil:
            part = MIMEApplication(
                fil.read(),
                Name=os.path.basename(f)
            )
            part['Content-Disposition'] = 'attachment; filename="%s"' % os.path.basename(f)
            msg.attach(part)

    smtp = smtplib.SMTP_SSL(smtpserver, 465)
    smtp.ehlo()
    smtp.login(sender_username, sender_password)
    smtp.sendmail(send_from, send_to, msg.as_string())
    smtp.close()


def notify_use_mail(send_to, text):
    text = str(text)
    send_mail(send_from=send_from, send_to=send_to, subject=subject, text=text, smtpserver=smtpserver, sender_username=username, sender_password=pwd, files=None)


def main():
    try:
        data, info_y, info_e = get_info(STATION_TRAIN_CODE, TRAIN_DATE)
        if is_should_notify(data, info_y, info_e):
            text = '%s, %s' % (info_y, info_e)
            notify_use_mail(send_to, text)
    except Exception as e:
        msg = '%s' % e
        log_fo_file(msg)
        notify_use_mail(send_to, msg)

if __name__ == '__main__':
    import time
    while True:
        main()
        time.sleep(GET_DATA_SLEEP_SECONDS)