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user.py
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user.py
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import datetime
import jwt
from werkzeug.security import generate_password_hash, check_password_hash
from ..models import InvalidToken
from ..config import key
from ..application import db
class User(db.Model):
""" User Model for storing user related details """
__tablename__ = "user"
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
email = db.Column(db.String(255), unique=True, nullable=False)
registered_on = db.Column(db.DateTime, nullable=False)
admin = db.Column(db.Boolean, nullable=False, default=False)
public_id = db.Column(db.String(100), unique=True)
username = db.Column(db.String(50), unique=True)
password_hash = db.Column(db.String(100))
@property
def password(self):
raise AttributeError('password: write-only field')
@password.setter
def password(self, password):
self.password_hash = generate_password_hash(password)
def check_password(self, password):
return check_password_hash(self.password_hash, password)
def __repr__(self):
return "<User '{}'>".format(self.username)
@staticmethod
def encode_auth_token(user_id):
"""
Generates the Auth Token
:return: string
"""
try:
payload = {
'exp': datetime.datetime.utcnow() + datetime.timedelta(days=1, seconds=5),
'iat': datetime.datetime.utcnow(),
'sub': user_id
}
return jwt.encode(
payload,
key,
algorithm='HS256'
).decode('utf-8')
except Exception as e:
return e
@staticmethod
def decode_auth_token(auth_token):
"""
Decodes the auth token
:param auth_token:
:return: dict|string
"""
try:
payload = jwt.decode(auth_token, key)
is_blacklisted_token = InvalidToken.check_blacklist(auth_token)
if is_blacklisted_token:
return 'Token blacklisted. Please log in again.'
else:
return {'username': payload['sub']}
except jwt.ExpiredSignatureError:
return 'Signature expired. Please log in again.'
except jwt.InvalidTokenError:
return 'Invalid token. Please log in again.'
except Exception:
return 'Unknown exception.'