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Atlassian JWT authentication

https://img.shields.io/travis/atlassian/asap-authentication-python/master.svg?label=Linux%20build%20%40%20Travis%20CI

This package provides an implementation of the Service to Service Authentication specification.


Installation

To install simply run

$ pip install atlassian-jwt-auth

Using this library

To create a JWT for authentication

import atlassian_jwt_auth


signer = atlassian_jwt_auth.create_signer('issuer', 'issuer/key', private_key_pem)
a_jwt = signer.generate_jwt('audience')

To create a JWT using a file on disk in the conventional location

Each time you call generate_jwt this will find the latest active key file (ends with .pem) and use it to generate your JWT.

import atlassian_jwt_auth


signer = atlassian_jwt_auth.create_signer_from_file_private_key_repository('issuer', '/opt/jwtprivatekeys')
a_jwt = signer.generate_jwt('audience')

To create a JWT using a data uri

import atlassian_jwt_auth
from atlassian_jwt_auth.key import DataUriPrivateKeyRetriever

key_id, private_key_pem = DataUriPrivateKeyRetriever('Your base64 encoded data uri').load('issuer')
signer = atlassian_jwt_auth.create_signer('issuer', 'issuer/key', private_key_pem)
a_jwt = signer.generate_jwt('audience')

To make an authenticated HTTP request

If you use the atlassian_jwt_auth.contrib.requests.JWTAuth provider, you can automatically generate JWT tokens when using the requests library to perform authenticated HTTP requests.

import atlassian_jwt_auth
from atlassian_jwt_auth.contrib.requests import JWTAuth

signer = atlassian_jwt_auth.create_signer('issuer', 'issuer/key', private_key_pem)
response = requests.get(
    'https://your-url',
    auth=JWTAuth(signer, 'audience')
)

One can also use atlassian_jwt_auth.contrib.aiohttp.JWTAuth to authenticate aiohttp requests:

import aiohttp

import atlassian_jwt_auth
from atlassian_jwt_auth.contrib.aiohttp import JWTAuth

signer = atlassian_jwt_auth.create_signer('issuer', 'issuer/key', private_key_pem)

async with aiohttp.ClientSession() as session:
    async with session.get('https://your-url',
                           auth=JWTAuth(signer, 'audience')) as resp:
        ...

If you want to reuse tokens that have the same claim within their period of validity then pass through reuse_jwts=True when calling create_signer. For example:

import atlassian_jwt_auth
from atlassian_jwt_auth.contrib.requests import JWTAuth

signer = atlassian_jwt_auth.create_signer('issuer', 'issuer/key', private_key_pem, reuse_jwts=True)
response = requests.get(
    'https://your-url',
    auth=JWTAuth(signer, 'audience')
)

To verify a JWT

import atlassian_jwt_auth

public_key_retriever = atlassian_jwt_auth.HTTPSPublicKeyRetriever('https://example.com')
verifier = atlassian_jwt_auth.JWTAuthVerifier(public_key_retriever)
verified_claims = verifier.verify_jwt(a_jwt, 'audience')

For Python versions starting from Python 3.5, note this library no longer supports python 3.5, atlassian_jwt_auth.contrib.aiohttp provides drop-in replacements for the components that perform HTTP requests, so that they use aiohttp instead of requests:

import atlassian_jwt_auth.contrib.aiohttp

public_key_retriever = atlassian_jwt_auth.contrib.aiohttp.HTTPSPublicKeyRetriever('https://example.com')
verifier = atlassian_jwt_auth.contrib.aiohttp.JWTAuthVerifier(public_key_retriever)
verified_claims = await verifier.verify_jwt(a_jwt, 'audience')

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This package provides a python implementation of the Atlassian Service to Service Authentication specification.

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