Flask-Paseto 0.0.4

Paseto integration for flask

FLASK-PASETO

FLASK-PASETO add basic supports for paseto v2 to your flask app.

Installation

FLask-Paseto relies on paseto which in turns relies on pysodium. pysoduim is a wrapper for the popular libsoduim cryptography library. This guide shows how to install libsodium on mac and windows. on linux libsodium could be install using sudo apt-get install -y libsodium-dev or yum install libsodium depending on your linux distribution.

To install FLask-Paseto used the command below to get the latest version

    pip install flask_paseto

Example usage

    import pysodium

    from flask_paseto import (
        Paseto,
        paseto_required,
        create_access_token,
        create_access_token_public,
        get_paseto_claim,
        get_paseto_claim_public
    )

    app = Flask(__name__)

    app.config['PASETO_SECRET_KEY'] = '0'*32 # must be 32 byte
    pk, sk = pysodium.crypto_sign_keypair()
    app.config['PASETO_PRIVATE_KEY']=sk
    app.config['PASETO_PUBLIC_KEY']=pk


    paseto = Paseto(app)

    @app.route('/protected/local/')
    @paseto_required
    def protected():
        claims = get_paseto_claim()
        return jsonify(claims), 200

    @app.route('/create/local/token/')
    def create_token():
        ret = {'access_token': create_access_token({'test user':'yes'})}
        return jsonify(ret), 200
    
    @app.route('/create/public/token/')
    def create_public_token():
        ret = {'access_token': create_access_token_public({'public test user':'yes'})}
        return jsonify(ret), 200

    @app.route('/protected/public/')
    @paseto_required
    def protected_public():
        claims = get_paseto_claim_public()
        return jsonify(claims), 200

    app.run()

The client http request must provide a generated paseto token

    GET /protected/public HTTP/1.1
    Authorization: Bearer v2.local.epxJJp-rchdlMondp12dxN9MV7GACjW0swwyOgo5pliQo2fJmC-1WqhrmWDTQBkg08In7zXD6ieM-xpaY2eMWr-mAu64nVi8VvTWi5bc3dhGHGR-Mg8QQ8HJIzPldLfSDLQXwQ

Configuration Options

Option	Description
PASETO_SECRET_KEY	This is the secret key used by paseto to sign your data. It requires 32 byte strings
PASETO_PUBLIC_KEY	This is the public key generated as part of the key pair generated for paseto
PASETO_PRIVATE_KEY	This is the private key generated as part of the key pair generated for paseto
PASETO_EXPIRATION_DELTA	The additional time from the current time the token was created before expiration