自从学校换了强智的教务系统后，学校的app的查课表功能基本就报废了，记不住课表的我无奈自己动手。

功能实现：如果当天有课，在当天早上6点30以短信的形式自动发送课表至手机

首先我想的是利用模拟登陆然后直接获取课表

输入一些错误信息，点击登陆，得到一个请求

其中的flag参数是重要线索，顺着这个参数找到对应的js

此时可以发现整个加密的流程

通过向/Logon.do?method=logon&flag=sess发送请求获得一个dataStr

再将dataStr切片，分成scode与sxh

code = 用户名 + ‘%%%’ +密码

再通过for循环加密，得到encoded (登录的请求参数之一)

同时对验证码进行识别（我用的是pytesseract + PIL）

最后将userAccount(用户名）、userPassword（密码）、RANDOMCODE（验证码）、encoded作为参数向http://logon.do/?method=logon发起请求，即可完成模拟登录。

但由于pytesseract的处理能力实在有限，识图率太低了（灰度处理、二值化、降噪后处理成功率还不到一半）

然后我选择了另一种方法

强智有一个小程序叫智校园助手，利用HttpCanary可以获取强智的接口，然后又在git上找到了教务系统api的python封装

嘻嘻嘻，于是事情变得简单了起来

import time import requests import re import os import json import datetime

#调用腾讯云api（pip install -i https://mirrors.tencent.com/pypi/simple/ –upgrade tencentcloud-sdk-python。）

from tencentcloud.common import credential from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException from tencentcloud.sms.v20190711 import sms_client, models from tencentcloud.common.profile.client_profile import ClientProfile from tencentcloud.common.profile.http_profile import HttpProfile

account = "" #此处为你的学号 password = "" #此处为密码 url = "http://218.75.197.123:83/"+"app/" #此处你自己学校教务系统ip地址，这里以湖南工大为例

class SW(object):

def __init__(self, account, password, url): super(SW, self).__init__() self.url = url self.account = account self.password = password self.session = self.login() #保持会话

HEADERS = { "User-Agent": "Mozilla/5.0 (Linux; U; Mobile; Android 6.0.1;C107-9 Build/FRF91 )", "Referer": "http://www.baidu.com", "accept-encoding": "gzip, deflate, br", "accept-language": "zh-CN,zh-TW;q=0.8,zh;q=0.6,en;q=0.4,ja;q=0.2", "cache-control": "max-age=0" }

def login(self): params = { "method": "authUser", "xh": self.account, "pwd": self.password } session = requests.Session() req = session.get(self.url, params=params, timeout=5, headers=self.HEADERS) s = json.loads(req.text) # if s['flag'] != "1": exit(0) self.HEADERS['token'] = s['token'] #请求头中添加token return session

def get_current_time(self): #获取当前时间信息 params = { "method": "getCurrentTime", "currDate": datetime.datetime.now().strftime('%Y-%m-%d') } req = self.session.get(self.url, params=params, timeout=5, headers=self.HEADERS) return req.text

def get_class_info(self, zc=-1): #获取课表 s = json.loads(self.get_current_time()) params = { "method": "getKbcxAzc", "xnxqid": s['xnxqh'], "zc": s['zc'] if zc == -1 else zc, "xh": self.account } req = self.session.get(self.url, params=params, timeout=5, headers=self.HEADERS) return json.loads(req.text)

if __name__ == '__main__': Q = SW(account, password, url) information = Q.get_class_info() #当前周次课表 s_time = json.loads(Q.get_current_time()) year, month, day = s_time['s_time'].split("-",2) #将课表时间拆分成年月日 start = datetime.date(int(year), int(month), int(day)) now = datetime.date.today() year, month, day = str(now).split("-", 2) #将当前时间拆分成年月日

kechen, shi_jian, di_dian ='', '','' iswork =False #今天是否有课

#由于本人现在每天只有一节课，且由于我腾讯云验证为个人开发者，短信模版只允许12字变量，故以仅字符串保存变量。 如课程较多且为企业开发者，可以考虑直接将某节课的所有信息合成一个变量并存入列表中

for i in range(len(information)): #遍历课表 change_time = int(information[i]['kcsj'][0]) – 1 if now == start+datetime.timedelta(days=change_time): #判断今天是否有课 kechen = information[i]['kcmc'] #课程名 shi_jian = information[i]['kssj'] +"-"+ information[i]['jssj'] #课程时间 di_dian = information[i]['jsmc'] #上课地点 iswork = True

if iswork: rb = requests.get('http://wthrcdn.etouch.cn/weather_mini?city=株洲') #天气查询 data = json.loads(rb.text)

number1 = year + "年" + month + "月" + day + "日" number2 = s_time['zc'] number3 = data['data']['forecast'][0]['date'][2:] number4 = data['data']['forecast'][0]['type'] number5 = data['data']['forecast'][0]['low'][2:] + "-" + data['data']['forecast'][0]['high'][2:] number6 = kechen number7 = shi_jian number8 = di_dian

#此处8个参数用于传递给短信模版

try: cred = credential.Credential("secretId", "secretKey") # 实例化一个认证对象，入参需要传入腾讯云账户密钥对secretId，secretKey httpProfile = HttpProfile() clientProfile = ClientProfile() clientProfile.language = "en-US" clientProfile.httpProfile = httpProfile client = sms_client.SmsClient(cred, "ap-guangzhou", clientProfile) req = models.SendSmsRequest() req.SmsSdkAppid = "" #此处填写短信应用ID req.Sign = "" #此处填写短信签名 req.SenderId = ""

req.PhoneNumberSet = ["+86",] #填入需要收到短信的号码 req.TemplateID = "" #此处填写短讯模版id req.TemplateParamSet =["{}".format(number1) , "{}".format(number2), "{}".format(number3), "{}".format(number4), "{}".format(number5), "{}".format(number6), "{}".format(number7), "{}".format(number8)] resp = client.SendSms(req) #发送短信

最后只需要在利用crontab在服务器上设置一个定时任务每天6点30执行一次就可以啦

30 6 * * * python /home/kechenbiao/kechenbiao.py

最终效果;

腾讯短信可以参考 https://github.com/TencentCloud/tencentcloud-sdk-python/blob/master/examples/sms/v20190711/SendSms.py

（由于本人只需要课表，所以只做了课表查询，实际功能还有很多，包括成绩查询、空教室查询等）