class AllClasses(db.Model):
__tablename__ = "allclasses"
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
classes = db.Column(db.String(200),
index=False,
unique=True,
nullable=False)
class All_Grades(db.Model):
__tablename__ = 'all_grades'
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
grade = db.Column(db.String(64), index=False, unique=True, nullable=False)
def __init__(self, grade):
self.grade = grade
class BlacklistToken(db.Model):
"""
Token Model for storing JWT tokens
"""
__tablename__ = 'blacklist_tokens'
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
token = db.Column(db.String(500), unique=True, nullable=False)
blacklisted_on = db.Column(db.DateTime, nullable=False)
def __init__(self, token):
self.token = token
self.blacklisted_on = datetime.datetime.now()
def __repr__(self):
return '<id: token: {}'.format(self.token)
@staticmethod
def check_blacklist(auth_token):
# check whether auth token has been blacklisted
res = BlacklistToken.query.filter_by(token=str(auth_token)).first()
if res:
return True
else:
return False
class Questions(db.Model):
__tablename__ = 'questions'
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
questions = db.Column(db.String(200),
index=False,
unique=True,
nullable=False)
def __init__(self, questions):
self.questions = questions
class Assigned_Classes(db.Model):
__tablename__ = 'assigned_classes'
user_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
classes_ids = db.Column(db.String(200),
index=False,
unique=True,
nullable=False)
questions_ids = db.Column(db.String(200),
index=False,
unique=True,
nullable=False)
def __init__(self, user_id, classes_ids, questions_ids):
self.user_id = user_id
self.classes_ids = classes_ids
self.questions_ids = questions_ids
class User(db.Model):
"""Data model for user accounts."""
__tablename__ = 'users'
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
email = db.Column(db.String(64), index=False, unique=True, nullable=False)
password = db.Column(db.String(64),
index=False,
unique=True,
nullable=False)
name = db.Column(db.String(64), index=False, unique=True, nullable=False)
age = db.Column(db.String(64), index=False, unique=True, nullable=False)
city = db.Column(db.String(64), index=False, unique=True, nullable=False)
grade_of_study = db.Column(db.String(80),
index=True,
unique=True,
nullable=False)
board_of_study = db.Column(db.String(80),
index=True,
unique=True,
nullable=False)
registered_on = db.Column(db.DateTime,
index=False,
unique=False,
nullable=False)
admin = db.Column(db.Boolean, index=False, unique=False, nullable=False)
def __init__(self,
email,
name,
age,
city,
password,
grade_of_study,
board_of_study,
admin=False):
self.email = email
self.name = name
self.age = age
self.city = city
self.password = bcrypt.generate_password_hash(
password, app.config.get('BCRYPT_LOG_ROUNDS')).decode()
self.grade_of_study = grade_of_study
self.board_of_study = board_of_study
self.registered_on = datetime.datetime.now()
self.admin = admin
def __repr__(self):
return '<User {}>'.format(self.username)
def encode_auth_token(self, user_id):
"""
Generates the Auth Token
:return: string
"""
try:
payload = {
'exp':
datetime.datetime.utcnow() +
datetime.timedelta(days=0, seconds=5),
'iat':
datetime.datetime.utcnow(),
'sub':
user_id
}
return jwt.encode(payload,
app.config.get('SECRET_KEY'),
algorithm='HS256')
except Exception as e:
return e
@staticmethod
def decode_auth_token(auth_token):
"""
Validates the auth token
:param auth_token:
:return: integer|string
"""
try:
payload = jwt.decode(auth_token, app.config.get('SECRET_KEY'))
is_blacklisted_token = BlacklistToken.check_blacklist(auth_token)
if is_blacklisted_token:
return 'Token blacklisted. Please log in again.'
else:
return payload['sub']
except jwt.ExpiredSignatureError:
return 'Signature expired. Please log in again.'
except jwt.InvalidTokenError:
return 'Invalid token. Please log in again.'