Expiring JWT tokens in Flask
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I've been using flask-jwt-extended for my application and one of the problems I had was logging a session out and making sure the token is not usable anymore.
I've based my solution on the Blacklist and Token Revoking documentation page with a custom RevokedToken model:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class RevokedToken(db.Model):
"""
Model is used as a storage to keep invalid/revoked tokens.
Currently used for log out functionality.
"""
__tablename__ = 'revoked_tokens'
id = db.Column(db.Integer, primary_key=True)
jti = db.Column(db.String(120))
@classmethod
def is_jti_blacklisted(cls, jti):
query = cls.query.filter_by(jti=jti).first()
return bool(query)
Logout resource:
class LogoutResource(Resource):
@jwt_required
def post(self):
jti = get_raw_jwt()['jti']
# invalidate access token
revoked_token = RevokedToken(jti=jti)
session.add(revoked_token)
session.commit()
return {}, 200
And the token_in_blacklist_loader() jwt function:
from flask_jwt_extended import JWTManager
jwt = JWTManager(app)
@jwt.token_in_blacklist_loader
def check_if_token_in_blacklist(decrypted_token):
jti = decrypted_token['jti']
return models.RevokedToken.is_jti_blacklisted(jti)
This looks straightforward enough, but, as we are talking about authentication, I thought I would ask if anyone sees any flaws or potential improvements to this approach?
python authentication flask jwt
asked 34 mins ago
alecxe
14.5k53277
add a comment |
up vote
0
down vote
favorite
I've been using flask-jwt-extended for my application and one of the problems I had was logging a session out and making sure the token is not usable anymore.
I've based my solution on the Blacklist and Token Revoking documentation page with a custom RevokedToken model:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class RevokedToken(db.Model):
"""
Model is used as a storage to keep invalid/revoked tokens.
Currently used for log out functionality.
"""
__tablename__ = 'revoked_tokens'
id = db.Column(db.Integer, primary_key=True)
jti = db.Column(db.String(120))
@classmethod
def is_jti_blacklisted(cls, jti):
query = cls.query.filter_by(jti=jti).first()
return bool(query)
Logout resource:
class LogoutResource(Resource):
@jwt_required
def post(self):
jti = get_raw_jwt()['jti']
# invalidate access token
revoked_token = RevokedToken(jti=jti)
session.add(revoked_token)
session.commit()
return {}, 200
And the token_in_blacklist_loader() jwt function:
from flask_jwt_extended import JWTManager
jwt = JWTManager(app)
@jwt.token_in_blacklist_loader
def check_if_token_in_blacklist(decrypted_token):
jti = decrypted_token['jti']
return models.RevokedToken.is_jti_blacklisted(jti)
This looks straightforward enough, but, as we are talking about authentication, I thought I would ask if anyone sees any flaws or potential improvements to this approach?
python authentication flask jwt
asked 34 mins ago
alecxe
14.5k53277
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I've been using flask-jwt-extended for my application and one of the problems I had was logging a session out and making sure the token is not usable anymore.
I've based my solution on the Blacklist and Token Revoking documentation page with a custom RevokedToken model:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class RevokedToken(db.Model):
"""
Model is used as a storage to keep invalid/revoked tokens.
Currently used for log out functionality.
"""
__tablename__ = 'revoked_tokens'
id = db.Column(db.Integer, primary_key=True)
jti = db.Column(db.String(120))
@classmethod
def is_jti_blacklisted(cls, jti):
query = cls.query.filter_by(jti=jti).first()
return bool(query)
Logout resource:
class LogoutResource(Resource):
@jwt_required
def post(self):
jti = get_raw_jwt()['jti']
# invalidate access token
revoked_token = RevokedToken(jti=jti)
session.add(revoked_token)
session.commit()
return {}, 200
And the token_in_blacklist_loader() jwt function:
from flask_jwt_extended import JWTManager
jwt = JWTManager(app)
@jwt.token_in_blacklist_loader
def check_if_token_in_blacklist(decrypted_token):
jti = decrypted_token['jti']
return models.RevokedToken.is_jti_blacklisted(jti)
This looks straightforward enough, but, as we are talking about authentication, I thought I would ask if anyone sees any flaws or potential improvements to this approach?
python authentication flask jwt
asked 34 mins ago
alecxe
14.5k53277
I've been using flask-jwt-extended for my application and one of the problems I had was logging a session out and making sure the token is not usable anymore.
I've based my solution on the Blacklist and Token Revoking documentation page with a custom RevokedToken model:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class RevokedToken(db.Model):
"""
Model is used as a storage to keep invalid/revoked tokens.
Currently used for log out functionality.
"""
__tablename__ = 'revoked_tokens'
id = db.Column(db.Integer, primary_key=True)
jti = db.Column(db.String(120))
@classmethod
def is_jti_blacklisted(cls, jti):
query = cls.query.filter_by(jti=jti).first()
return bool(query)
Logout resource:
class LogoutResource(Resource):
@jwt_required
def post(self):
jti = get_raw_jwt()['jti']
# invalidate access token
revoked_token = RevokedToken(jti=jti)
session.add(revoked_token)
session.commit()
return {}, 200
And the token_in_blacklist_loader() jwt function:
from flask_jwt_extended import JWTManager
jwt = JWTManager(app)
@jwt.token_in_blacklist_loader
def check_if_token_in_blacklist(decrypted_token):
jti = decrypted_token['jti']
return models.RevokedToken.is_jti_blacklisted(jti)
This looks straightforward enough, but, as we are talking about authentication, I thought I would ask if anyone sees any flaws or potential improvements to this approach?
python authentication flask jwt
python authentication flask jwt
asked 34 mins ago
alecxe
14.5k53277
asked 34 mins ago
alecxe
14.5k53277
asked 34 mins ago
alecxe
14.5k53277
asked 34 mins ago
alecxe
14.5k53277
asked 34 mins ago
alecxe
14.5k53277
14.5k53277
add a comment |
add a comment |
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