def validate_login(headers):
if 'Cookie' not in headers:
return 0, error(401, "You have to be logged in to see this page")
else:
token = headers['Cookie'].split("=")[-1]
try:
decoded = jwt.decode(token, app_secret, algorithms='HS256')
new_user = User(userID=decoded["userID"], emailID=decoded["emailID"], name=decoded["name"])
return 1, new_user
except:
return 0, error(200, "Either the user does not exist or the given password is wrong. Please Try again")
def start_classroom_session():
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
if(app.method == "POST"):
classID = app.form_data["classID"]
live_class = LiveClass(classID=classID)
status = live_class.start(sql_database)
if(status == 0):
return error(200, "The Class has already been started, please join the class at: /classrooms/{}/live".format(classID))
else:
return redirect("/classrooms/{}/live".format(classID))
else:
return error(405)
def discussions(class_id):
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
ret_code, classroom_obj = validate_classroom(class_id, user)
if(ret_code == 0):
return classroom_obj
# print("class ID is:", class_id)
if app.method == "POST":
if(user.userID == classroom_obj.creator_userID):
form_data = app.form_data
gd_topic = form_data["gd_topic"]
gd = Group_discussion(classID=classroom_obj.classID, gd_topic=gd_topic)
gd.add_gd(sql_database)
# print("classroom_obj", classroom_obj)
return redirect("/classrooms/{}/group_discussions".format(class_id))
else:
return error(200, "You are not a Instructor. Only instructors can create a Group Discussion on Classroom")
else:
group_discussions = classroom_obj.get_group_discussions(sql_database)
gd_list = []
for gd in group_discussions:
gd_list.append({"gdID":gd.gdID, "classID":gd.classID, "gd_topic":gd.gd_topic})
user_details = user_json(user)
classroom_details = classroom_json(classroom_obj)
if_class_live = LiveClass(classID=classroom_obj.classID).check_if_live(sql_database)
return render_html("group_discussions.html", gd_list=gd_list, user_details = user_details, details=classroom_details, if_class_live = if_class_live)
def access_classroom(class_id):
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
ret_code, classroom_obj = validate_classroom(class_id, user)
if(ret_code == 0):
return classroom_obj
if app.method == "POST":
if(user.userID == classroom_obj.creator_userID):
form_data = app.form_data
content = form_data["content"]
tag = form_data["tag"]
post = Post(classID=classroom_obj.classID, creator_userID=user.userID, content=content)
post.add_post(sql_database)
new_tag = Tag(tagName=tag, postID=post.postID, classID=classroom_obj.classID)
new_tag.add_tag(sql_database)
return redirect("/classrooms/{}".format(class_id))
else:
return error(200, "You are not a Instructor. Only instructors can post on Classroom")
else:
posts = classroom_obj.list_posts(sql_database=sql_database)
user_details = user_json(user)
classroom_details = classroom_json(classroom_obj)
post_list = []
for post in posts:
tag_name = post.get_tag(sql_database)
post_list.append({"postID":post.postID, "classID":post.classID, "timestamp":post.timestamp, "creator_userID":post.creator_userID, "content":post.content, "tag":tag_name})
if_class_live = LiveClass(classID=classroom_obj.classID).check_if_live(sql_database)
return render_html("class.html", posts=post_list[::-1], details=classroom_details, user_details = user_details, if_class_live = if_class_live)
def join_live_class(classID):
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
if app.method == "GET":
ret_code, classroom_obj = validate_classroom(classID, user)
if(ret_code == 0):
return classroom_obj
live_class = LiveClass(classID=classID)
if_live = live_class.check_if_live(sql_database)
if not if_live:
return error(400, "The class has not started yet.")
user_attendance = Attendance(liveclassID=live_class.liveclassID, userID=user.userID, classID = classroom_obj.classID)
user_attendance.mark_attendance(sql_database)
user_details = user_json(user)
classroom_details = Classroom(classID=classID).get_class_details(sql_database)
return render_html("live_class.html", live_class = live_class, user_attendance = user_attendance, user_details=user_details, details=classroom_details, if_class_live = if_live)
else:
return error(405)
def signup():
if app.method == "GET":
return render_html("signup.html")
elif app.method == "POST":
form_data = app.form_data
name, email, passwd = form_data["name"], form_data["email"], form_data["pwd"]
new_user = User(emailID=email, password=passwd, name=name)
user_id = new_user.add_user(sql_database)
if(user_id == -1):
return error(200, "The User Already exists. Please try another Email ID.")
jwt_token = jwt.encode({'emailID': email, 'userID': user_id, 'name': name}, app_secret, algorithm='HS256')
return redirect(new_route="/classrooms", token=jwt_token.decode("utf-8"))
def validate_classroom(classID, user):
joined_classes = user.list_classrooms(sql_database)
class_ids = [joined_class.classID for joined_class in joined_classes]
if classID not in class_ids:
return 0, error(200, "You are not a part of this classroom")
classroom_obj = Classroom(classID=classID)
for joined_class in joined_classes:
if joined_class.classID == classID:
classroom_obj = joined_class
break
return 1, classroom_obj
def login():
if app.method == "POST":
form_data = app.form_data
email, passwd = form_data["email"], form_data["pwd"]
user = User(password = passwd, emailID=email)
ret = user.login_user(sql_database)
if(ret == 0):
return error(200, "Either the user does not exist or the given password is wrong. Please Try again")
user_id = ret[0]
name = ret[1]
jwt_token = jwt.encode({'emailID': email, 'userID': user_id, 'name': name}, app_secret, algorithm='HS256')
return redirect(new_route="/classrooms", token=jwt_token.decode("utf-8"))
else:
return render_html("login.html")
def end_classroom_session():
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
if(app.method == "POST"):
classID = app.form_data["classID"]
live_class = LiveClass(classID=classID)
if_live = live_class.check_if_live(sql_database)
if if_live:
status = live_class.end_class(sql_database)
return redirect("/classrooms/{}".format(classID))
else:
return error(405)
def show_attendace(classID):
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
if app.method == "GET":
ret_code, classroom_obj = validate_classroom(classID, user)
if(ret_code == 0):
return classroom_obj
user_details = user_json(user)
attendance = classroom_obj.get_attendance(sql_database)
classroom_details = classroom_json(classroom_obj)
if_class_live = LiveClass(classID=classroom_obj.classID).check_if_live(sql_database)
return render_html("attendance.html", final_tally = attendance, user_details=user_details, details=classroom_details, if_class_live = if_class_live)
else:
return error(405)
def access_students(class_id):
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
ret_code, classroom_obj = validate_classroom(class_id, user)
if(ret_code == 0):
return classroom_obj
if(user.userID == classroom_obj.creator_userID):
students_list = classroom_obj.list_students(sql_database)
user_details = user_json(user)
classroom_details = classroom_json(classroom_obj)
if_class_live = LiveClass(classID=classroom_obj.classID).check_if_live(sql_database)
return render_html("students.html", students_list = students_list, details=classroom_details, user_details = user_details, if_class_live = if_class_live)
else:
return error(200, "You are not an Instructor. Only instructors can view list of students in the Classroom")
def access_discussion(gdID, class_id):
ret_code, user = validate_login(app.headers)
if(ret_code == 0):
return user
else:
ret_code, classroom_obj = validate_classroom(class_id, user)
if(ret_code == 0):
return classroom_obj
gd_list = classroom_obj.get_group_discussions(sql_database)
gd_obj = None
gdIDs = [gd.gdID for gd in gd_list]
if gdID not in gdIDs:
return error(200, "Group discussion not found in this classroom")
for gd in gd_list:
if gd.gdID == gdID:
gd_obj = gd
break
instructor = (user.userID == classroom_obj.creator_userID)
print("GD_ID is - ", gd_obj.gdID)
if app.method == "POST":
form_data = app.form_data
private = form_data["if_private"]
if(private == "1"):
# Private message
if instructor:
studentID = form_data["receiver"]
private_msg = form_data["private_msg"]
private_msg_obj = GD_message(gdID=gd_obj.gdID, sender_userID=user.userID, private=studentID, content=private_msg)
private_msg_obj.add_msg(sql_database)
else:
private_msg = form_data["private_msg"]
private_msg_obj = GD_message(gdID=gd_obj.gdID, sender_userID=user.userID, private=classroom_obj.creator_userID, content=private_msg)
private_msg_obj.add_msg(sql_database)
else:
# Public message
public_msg = form_data["public_msg"]
public_msg_obj = GD_message(gdID=gd_obj.gdID, sender_userID=user.userID, private=-1, content=public_msg)
public_msg_obj.add_msg(sql_database)
return redirect("/classrooms/{}/group_discussions/{}".format(class_id, gd_obj.gdID))
else:
public_list, tmp_private_list = gd_obj.get_messages(sql_database)
for priv_msg in tmp_private_list:
user_tmp_obj = User(userID = priv_msg["sender_userID"])
username_tmp = user_tmp_obj.get_name_of_user(sql_database)
# print(username_tmp)
receiver_tmp_obj = User(userID = priv_msg["private"])
priv_msg["recvname"] = receiver_tmp_obj.get_name_of_user(sql_database)
priv_msg["username"] = username_tmp
priv_msg["senderID"] = priv_msg["sender_userID"]
for pub_msg in public_list:
user_tmp_obj = User(userID = pub_msg["sender_userID"])
username_tmp = user_tmp_obj.get_name_of_user(sql_database)
# print(username_tmp)
pub_msg["username"] = username_tmp
private_list = []
if instructor:
# teacher view
private_list = tmp_private_list
else:
# student view
private_list = []
for priv_msg in tmp_private_list:
if priv_msg["sender_userID"] == user.userID or priv_msg["private"] == user.userID:
private_list.append(priv_msg)
user_details = user_json(user)
classroom_details = classroom_json(classroom_obj)
if_class_live = LiveClass(classID=classroom_obj.classID).check_if_live(sql_database)
return render_html("discussion.html", private_list = private_list, public_list = public_list, is_instructor = instructor, gd_topic=gd_obj.gd_topic, gdID = gd_obj.gdID, user_details = user_details, details=classroom_details, if_class_live = if_class_live)
