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# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import pytest
import google.oauth2.credentials
from google.oauth2 import service_account
import google.auth.impersonated_credentials
from google.auth import _helpers
GOOGLE_OAUTH2_TOKEN_ENDPOINT = "https://oauth2.googleapis.com/token"
@pytest.fixture
def service_account_credentials(service_account_file):
yield service_account.Credentials.from_service_account_file(service_account_file)
@pytest.fixture
def impersonated_service_account_credentials(impersonated_service_account_file):
yield service_account.Credentials.from_service_account_file(
impersonated_service_account_file
)
def test_refresh_with_user_credentials_as_source(
authorized_user_file,
impersonated_service_account_credentials,
http_request,
token_info,
):
with open(authorized_user_file, "r") as fh:
info = json.load(fh)
source_credentials = google.oauth2.credentials.Credentials(
None,
refresh_token=info["refresh_token"],
token_uri=GOOGLE_OAUTH2_TOKEN_ENDPOINT,
client_id=info["client_id"],
client_secret=info["client_secret"],
# The source credential needs this scope for the generateAccessToken request
# The user must also have `Service Account Token Creator` on the project
# that owns the impersonated service account.
# See https://cloud.google.com/iam/docs/creating-short-lived-service-account-credentials
scopes=["https://www.googleapis.com/auth/cloud-platform"],
)
source_credentials.refresh(http_request)
target_scopes = [
"https://www.googleapis.com/auth/devstorage.read_only",
"https://www.googleapis.com/auth/analytics",
]
target_credentials = google.auth.impersonated_credentials.Credentials(
source_credentials=source_credentials,
target_principal=impersonated_service_account_credentials.service_account_email,
target_scopes=target_scopes,
lifetime=100,
)
target_credentials.refresh(http_request)
assert target_credentials.token
def test_refresh_with_service_account_credentials_as_source(
http_request,
service_account_credentials,
impersonated_service_account_credentials,
token_info,
):
source_credentials = service_account_credentials.with_scopes(["email"])
source_credentials.refresh(http_request)
assert source_credentials.token
target_scopes = [
"https://www.googleapis.com/auth/devstorage.read_only",
"https://www.googleapis.com/auth/analytics",
]
target_credentials = google.auth.impersonated_credentials.Credentials(
source_credentials=source_credentials,
target_principal=impersonated_service_account_credentials.service_account_email,
target_scopes=target_scopes,
)
target_credentials.refresh(http_request)
assert target_credentials.token
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