????
Your IP : 216.73.216.233
import time
from authlib.common.encoding import to_native
from authlib.jose import jwt
class JWTBearerTokenGenerator:
"""A JSON Web Token formatted bearer token generator for jwt-bearer grant type.
This token generator can be registered into authorization server::
authorization_server.register_token_generator(
'urn:ietf:params:oauth:grant-type:jwt-bearer',
JWTBearerTokenGenerator(private_rsa_key),
)
In this way, we can generate the token into JWT format. And we don't have to
save this token into database, since it will be short time valid. Consider to
rewrite ``JWTBearerGrant.save_token``::
class MyJWTBearerGrant(JWTBearerGrant):
def save_token(self, token):
pass
:param secret_key: private RSA key in bytes, JWK or JWK Set.
:param issuer: a string or URI of the issuer
:param alg: ``alg`` to use in JWT
"""
DEFAULT_EXPIRES_IN = 3600
def __init__(self, secret_key, issuer=None, alg='RS256'):
self.secret_key = secret_key
self.issuer = issuer
self.alg = alg
@staticmethod
def get_allowed_scope(client, scope):
if scope:
scope = client.get_allowed_scope(scope)
return scope
@staticmethod
def get_sub_value(user):
"""Return user's ID as ``sub`` value in token payload. For instance::
@staticmethod
def get_sub_value(user):
return str(user.id)
"""
return user.get_user_id()
def get_token_data(self, grant_type, client, expires_in, user=None, scope=None):
scope = self.get_allowed_scope(client, scope)
issued_at = int(time.time())
data = {
'scope': scope,
'grant_type': grant_type,
'iat': issued_at,
'exp': issued_at + expires_in,
'client_id': client.get_client_id(),
}
if self.issuer:
data['iss'] = self.issuer
if user:
data['sub'] = self.get_sub_value(user)
return data
def generate(self, grant_type, client, user=None, scope=None, expires_in=None):
"""Generate a bearer token for OAuth 2.0 authorization token endpoint.
:param client: the client that making the request.
:param grant_type: current requested grant_type.
:param user: current authorized user.
:param expires_in: if provided, use this value as expires_in.
:param scope: current requested scope.
:return: Token dict
"""
if not expires_in:
expires_in = self.DEFAULT_EXPIRES_IN
token_data = self.get_token_data(grant_type, client, expires_in, user, scope)
access_token = jwt.encode({'alg': self.alg}, token_data, key=self.secret_key, check=False)
token = {
'token_type': 'Bearer',
'access_token': to_native(access_token),
'expires_in': expires_in
}
if scope:
token['scope'] = scope
return token
def __call__(self, grant_type, client, user=None, scope=None,
expires_in=None, include_refresh_token=True):
# there is absolutely no refresh token in JWT format
return self.generate(grant_type, client, user, scope, expires_in)