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main.py
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import copy
import json
import threading
from typing import List
import requests
import time
import bs4
import re
from PIL import Image
from io import BytesIO
import ddddocr
class Spider:
class Lesson:
def __init__(self, name, code, teacher_name, Time, number):
self.name = name
self.code = code
self.teacher_name = teacher_name
self.Time = Time
self.number = number
def show(self):
print(
f'name:{self.name} code:{self.code} teacher name:{self.teacher_name} Time:{self.Time} number:{self.number}')
def __init__(self):
self.__base_data = {
'__EVENTTARGET' : '',
'__EVENTARGUMENT' : '',
'__VIEWSTATE' : '',
'ddl_kcxz' : '',
'ddl_ywyl' : '',
'ddl_kcgs' : '',
'ddl_xqbs' : '1',
'ddl_sksj' : '',
'TextBox1' : '',
'dpkcmcGrid:txtChoosePage': '1',
'dpkcmcGrid:txtPageSize' : '200',
}
self.__name = None
self.__uid = None
self.__password = None
self.__real_base_url: str = ''
self.__base_url: str = 'https://jws.syuct.edu.cn/'
self.__headers: dict[str, str] = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0"
}
self.session = requests.Session()
def __set_real_url(self) -> requests.Response:
request: requests.Response = self.session.get(self.__base_url, headers=self.__headers)
real_url: str = request.url
self.__real_base_url: str = real_url[:len(real_url) - len("default2.aspx")]
return request
def __get_code(self):
request: requests.Response = self.session.get(self.__real_base_url + 'CheckCode.aspx', headers=self.__headers)
img_data = BytesIO(request.content)
img = Image.open(img_data)
ocr = ddddocr.DdddOcr()
code = ocr.classification(img)
print(f"the code is {code}")
return code
def __get_login_data(self,uid,password):
request = self.__set_real_url()
soup = bs4.BeautifulSoup(request.text, 'lxml')
form_tag = soup.find("input")
__VIEWSTATE = form_tag['value']
code = self.__get_code()
data: dict[str, str] = {
'__VIEWSTATE' : __VIEWSTATE,
'txtUserName' : uid,
'TextBox2' : password,
'txtSecretCode' : code,
'RadioButtonList1': '学生'.encode('gb2312'),
'Button1' : "",
'lbLanguage' : "",
'hidPdrs' : "",
'hidsc' : "",
}
return data
def login(self,uid,password):
while True:
data: dict = self.__get_login_data(uid,password)
request: requests.Response = self.session.post(self.__real_base_url + 'default2.aspx',
headers=self.__headers,
data=data)
soup = bs4.BeautifulSoup(request.text, 'lxml')
try:
name_tag = soup.find(id='xhxm')
self.__name = name_tag.string[:len(name_tag.string) - 2]
print(f'login success! {self.__name}')
except:
print('Unknown Error, try login again.')
time.sleep(1)
continue
finally:
return True
def __enter_lessons_first(self):
data: dict = {
'xh' : self.__uid,
'xm' : self.__name.encode('gb2312'),
'gnmkdm': 'N121111',
}
self.__headers['Referer'] = self.__real_base_url + 'xs_main.aspx?xh=' + self.__uid
request = self.session.get(self.__real_base_url + 'xf_xsqxxxk.aspx', params=data, headers=self.__headers)
self.__headers["Referer"] = request.url
soup = bs4.BeautifulSoup(request.text, 'lxml')
self.__set_VIEWSTATE(soup)
def __set_VIEWSTATE(self, soup):
__VIEWSTATE_taf = soup.find("input", attrs={"name": "__VIEWSTATE"})
self.__base_data['__VIEWSTATE'] = __VIEWSTATE_taf['value']
def __search_lessons(self, lesson_name=''):
self.__base_data['TextBox1'] = lesson_name.encode('gb2312')
data = self.__base_data.copy()
data['Button2'] = '确定'.encode('gb2312')
request = self.session.post(self.__headers['Referer'], data=data, headers=self.__headers)
soup = bs4.BeautifulSoup(request.text, 'lxml')
self.__set_VIEWSTATE(soup)
return self.__get_lessons(soup)
def __get_lessons(self, soup):
lessons_list = []
lessons_tag = soup.find('table', id='kcmcGrid')
lessons_tag_list = lessons_tag.find_all('tr')[1:]
for lesson_tag in lessons_tag_list:
td_list = lesson_tag.find_all('td')
code = td_list[0].input['name']
name = td_list[1].string
teacher_name = td_list[3].string
Time = td_list[4]['title']
number = td_list[10].string
lesson = self.Lesson(name, code, teacher_name, Time, number)
lessons_list.append(lesson)
return lessons_list
def __select_lesson(self, lesson)->bool:
data = copy.deepcopy(self.__base_data)
data['Button1'] = ' 提交 '.encode('gb2312')
code = lesson.code
data[code] = 'on'
while True:
request = self.session.post(self.__headers['Referer'], data=data, headers=self.__headers)
soup = bs4.BeautifulSoup(request.text, 'lxml')
self.__set_VIEWSTATE(soup)
error_tag = soup.html.head.script
selected_lessons_tag = soup.find('table', id='DataGrid2')
tr_list = selected_lessons_tag.find_all('tr')[1:]
selected_lessons:List[str] = []
print("以选课程：")
for tr in tr_list:
td = tr.find('td')
selected_lessons.append(td.string)
print(td.string)
if lesson.name in selected_lessons:
print(f"选课成功：{lesson.name}")
return True
if not error_tag is None:
error_tag_text = error_tag.string
r = "alert\('(.+?)'\);"
for s in re.findall(r, error_tag_text):
print(f"error on {lesson.name}:{s}")
return False
def run(self):
config = json.load(open('config.json'))
self.__name = config['name']
self.__uid = config['uid']
self.__password = config['password']
if self.login(config["uid"],config["password"]):
lessons = config['lessons']
self.__enter_lessons_first()
selected_lessons = list()
for lesson in lessons:
lesson_list = self.__search_lessons(lesson['name'])
for i in range(len(lesson_list)):
if lesson_list[i].teacher_name == lesson['teacher_name'] and lesson_list[i].Time == lesson['Time']:
selected_lessons.append(lesson_list[i])
for item in selected_lessons:
item.show()
thread_liet = list()
for i in selected_lessons:
thread_liet.append(threading.Thread(target=self.__select_lesson, args=(i,),daemon=True))
for i in thread_liet:
i.start()
for i in thread_liet:
i.join()
input("press enter to quit")
def main():
spider = Spider()
spider.run()
if __name__ == '__main__':
main()