feat: Moodle login & get courses

api/moodle.py

@@ -0,0 +1,54 @@
+import requests
+from bs4 import BeautifulSoup
+from config import CONFIG
+
+class Moodle():
+    def __init__(self):
+        self.session = requests.Session()
+
+        # get login token
+        response = self.session.get('https://moodle.ncnu.edu.tw/')
+        root = BeautifulSoup(response.text, 'html.parser')
+        self.loginToken = root.find('input', {'name': 'logintoken'}).get('value')
+
+    def login(self, username, password):
+        response = self.session.post(
+            'https://moodle.ncnu.edu.tw/login/index.php?authldap_skipntlmsso=1',
+            data={
+                'logintoken': self.loginToken,
+                'username': username,
+                'password': password
+            }
+        )
+        # check whether login success
+        # if it does, it return two 303 status code and redirected to Moodle main page
+        if len(response.history) == 2:
+            return True
+        else:
+            return False
+    
+    def getCourses(self, semester):
+        response = self.session.get('https://moodle.ncnu.edu.tw/')
+        root = BeautifulSoup(response.text, 'html.parser')
+        courses = root.findAll('ul', {'class': 'dropdown-menu'})[1] \
+                      .findAll('li')
+        ans = []
+        for course in courses:
+            if course.text.split('-')[0]==semester:
+                ans.append({
+                    'name': course.text,
+                    'link': course.find('a').get('href')
+                })
+        return ans
+            
+
+
+moodle = Moodle()
+if moodle.login('學號', '密碼'):
+    print("登入成功")
+    courses = moodle.getCourses("1092")
+    for c in courses:
+        print(c)
+else:
+    print("登入失敗")
+