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from flask import json
from authlib.oauth2.rfc7523 import JWTBearerGrant as _JWTBearerGrant
from authlib.oauth2.rfc7523 import JWTBearerTokenGenerator
from tests.util import read_file_path
from .models import Client
from .models import User
from .models import db
from .oauth2_server import TestCase
from .oauth2_server import create_authorization_server
class JWTBearerGrant(_JWTBearerGrant):
def resolve_issuer_client(self, issuer):
return Client.query.filter_by(client_id=issuer).first()
def resolve_client_key(self, client, headers, payload):
keys = {"1": "foo", "2": "bar"}
return keys[headers["kid"]]
def authenticate_user(self, subject):
return None
def has_granted_permission(self, client, user):
return True
class JWTBearerGrantTest(TestCase):
def prepare_data(self, grant_type=None, token_generator=None):
server = create_authorization_server(self.app)
server.register_grant(JWTBearerGrant)
if token_generator:
server.register_token_generator(JWTBearerGrant.GRANT_TYPE, token_generator)
if grant_type is None:
grant_type = JWTBearerGrant.GRANT_TYPE
user = User(username="foo")
db.session.add(user)
db.session.commit()
client = Client(
user_id=user.id,
client_id="jwt-client",
client_secret="jwt-secret",
)
client.set_client_metadata(
{
"scope": "profile",
"redirect_uris": ["http://localhost/authorized"],
"grant_types": [grant_type],
}
)
db.session.add(client)
db.session.commit()
def test_missing_assertion(self):
self.prepare_data()
rv = self.client.post(
"/oauth/token", data={"grant_type": JWTBearerGrant.GRANT_TYPE}
)
resp = json.loads(rv.data)
assert resp["error"] == "invalid_request"
assert "assertion" in resp["error_description"]
def test_invalid_assertion(self):
self.prepare_data()
assertion = JWTBearerGrant.sign(
"foo",
issuer="jwt-client",
audience="https://i.b/token",
subject="none",
header={"alg": "HS256", "kid": "1"},
)
rv = self.client.post(
"/oauth/token",
data={"grant_type": JWTBearerGrant.GRANT_TYPE, "assertion": assertion},
)
resp = json.loads(rv.data)
assert resp["error"] == "invalid_grant"
def test_authorize_token(self):
self.prepare_data()
assertion = JWTBearerGrant.sign(
"foo",
issuer="jwt-client",
audience="https://i.b/token",
subject=None,
header={"alg": "HS256", "kid": "1"},
)
rv = self.client.post(
"/oauth/token",
data={"grant_type": JWTBearerGrant.GRANT_TYPE, "assertion": assertion},
)
resp = json.loads(rv.data)
assert "access_token" in resp
def test_unauthorized_client(self):
self.prepare_data("password")
assertion = JWTBearerGrant.sign(
"bar",
issuer="jwt-client",
audience="https://i.b/token",
subject=None,
header={"alg": "HS256", "kid": "2"},
)
rv = self.client.post(
"/oauth/token",
data={"grant_type": JWTBearerGrant.GRANT_TYPE, "assertion": assertion},
)
resp = json.loads(rv.data)
assert resp["error"] == "unauthorized_client"
def test_token_generator(self):
m = "tests.flask.test_oauth2.oauth2_server:token_generator"
self.app.config.update({"OAUTH2_ACCESS_TOKEN_GENERATOR": m})
self.prepare_data()
assertion = JWTBearerGrant.sign(
"foo",
issuer="jwt-client",
audience="https://i.b/token",
subject=None,
header={"alg": "HS256", "kid": "1"},
)
rv = self.client.post(
"/oauth/token",
data={"grant_type": JWTBearerGrant.GRANT_TYPE, "assertion": assertion},
)
resp = json.loads(rv.data)
assert "access_token" in resp
assert "j-" in resp["access_token"]
def test_jwt_bearer_token_generator(self):
private_key = read_file_path("jwks_private.json")
self.prepare_data(token_generator=JWTBearerTokenGenerator(private_key))
assertion = JWTBearerGrant.sign(
"foo",
issuer="jwt-client",
audience="https://i.b/token",
subject=None,
header={"alg": "HS256", "kid": "1"},
)
rv = self.client.post(
"/oauth/token",
data={"grant_type": JWTBearerGrant.GRANT_TYPE, "assertion": assertion},
)
resp = json.loads(rv.data)
assert "access_token" in resp
assert resp["access_token"].count(".") == 2
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