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-rw-r--r--gn_auth/auth/authentication/oauth2/grants/jwt_bearer_grant.py34
1 files changed, 34 insertions, 0 deletions
diff --git a/gn_auth/auth/authentication/oauth2/grants/jwt_bearer_grant.py b/gn_auth/auth/authentication/oauth2/grants/jwt_bearer_grant.py
index 895acb7..8e2f082 100644
--- a/gn_auth/auth/authentication/oauth2/grants/jwt_bearer_grant.py
+++ b/gn_auth/auth/authentication/oauth2/grants/jwt_bearer_grant.py
@@ -1,6 +1,7 @@
"""JWT as Authorisation Grant"""
from flask import current_app as app
+from authlib.common.security import generate_token
from authlib.oauth2.rfc7523.jwt_bearer import JWTBearerGrant as _JWTBearerGrant
from authlib.oauth2.rfc7523.token import (
JWTBearerTokenGenerator as _JWTBearerTokenGenerator)
@@ -30,6 +31,25 @@ class JWTBearerTokenGenerator(_JWTBearerTokenGenerator):
"sub": str(tokendata["sub"])}
+ 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
+ """
+ The default generator does not provide refresh tokens with JWT. It goes
+ so far as to state "there is absolutely no refresh token in JWT format".
+
+ This shim allows us to have a refresh token. We should probably look for
+ a supported way of using JWTs with refresh capability.
+ """
+ token = self.generate(grant_type, client, user, scope, expires_in)
+ if include_refresh_token:
+ return {
+ **token,
+ "refresh_token": generate_token(length=42)
+ }
+ return token
+
+
class JWTBearerGrant(_JWTBearerGrant):
"""Implement JWT as Authorisation Grant."""
@@ -57,3 +77,17 @@ class JWTBearerGrant(_JWTBearerGrant):
Check if the client has permission to access the given user's resource.
"""
return True # TODO: Check this!!!
+
+ def create_token_response(self):
+ """If valid and authorized, the authorization server issues an access
+ token.
+ """
+ token = self.generate_token(
+ scope=self.request.scope,
+ user=self.request.user,
+ include_refresh_token=self.request.client.check_grant_type(
+ "refresh_token")
+ )
+ app.logger.debug('Issue token %r to %r', token, self.request.client)
+ self.save_token(token)
+ return 200, token, self.TOKEN_RESPONSE_HEADER