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import pytest
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 db
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
@pytest.fixture(autouse=True)
def server(server):
server.register_grant(JWTBearerGrant)
return server
@pytest.fixture(autouse=True)
def client(client, db):
client.set_client_metadata(
{
"scope": "profile",
"redirect_uris": ["https://client.test/authorized"],
"grant_types": [JWTBearerGrant.GRANT_TYPE],
}
)
db.session.add(client)
db.session.commit()
return client
def test_missing_assertion(test_client):
rv = test_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(test_client):
assertion = JWTBearerGrant.sign(
"foo",
issuer="client-id",
audience="https://provider.test/token",
subject="none",
header={"alg": "HS256", "kid": "1"},
)
rv = test_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(test_client):
assertion = JWTBearerGrant.sign(
"foo",
issuer="client-id",
audience="https://provider.test/token",
subject=None,
header={"alg": "HS256", "kid": "1"},
)
rv = test_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(test_client, client):
client.set_client_metadata(
{
"scope": "profile",
"redirect_uris": ["https://client.test/authorized"],
"grant_types": ["password"],
}
)
db.session.add(client)
db.session.commit()
assertion = JWTBearerGrant.sign(
"bar",
issuer="client-id",
audience="https://provider.test/token",
subject=None,
header={"alg": "HS256", "kid": "2"},
)
rv = test_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(test_client, app, server):
m = "tests.flask.test_oauth2.oauth2_server:token_generator"
app.config.update({"OAUTH2_ACCESS_TOKEN_GENERATOR": m})
server.load_config(app.config)
assertion = JWTBearerGrant.sign(
"foo",
issuer="client-id",
audience="https://provider.test/token",
subject=None,
header={"alg": "HS256", "kid": "1"},
)
rv = test_client.post(
"/oauth/token",
data={"grant_type": JWTBearerGrant.GRANT_TYPE, "assertion": assertion},
)
resp = json.loads(rv.data)
assert "access_token" in resp
assert "c-" in resp["access_token"]
def test_jwt_bearer_token_generator(test_client, server):
private_key = read_file_path("jwks_private.json")
server.register_token_generator(
JWTBearerGrant.GRANT_TYPE, JWTBearerTokenGenerator(private_key)
)
assertion = JWTBearerGrant.sign(
"foo",
issuer="client-id",
audience="https://provider.test/token",
subject=None,
header={"alg": "HS256", "kid": "1"},
)
rv = test_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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