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# Copyright 2015 gRPC authors.
#
# 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.
"""The Python implementation of the GRPC interoperability test client."""
import argparse
import os
from google import auth as google_auth
from google.auth import jwt as google_auth_jwt
import grpc
from src.proto.grpc.testing import test_pb2_grpc
from tests.interop import methods
from tests.interop import resources
def _args():
parser = argparse.ArgumentParser()
parser.add_argument(
'--server_host',
default="localhost",
type=str,
help='the host to which to connect')
parser.add_argument(
'--server_port',
type=int,
required=True,
help='the port to which to connect')
parser.add_argument(
'--test_case',
default='large_unary',
type=str,
help='the test case to execute')
parser.add_argument(
'--use_tls',
default=False,
type=resources.parse_bool,
help='require a secure connection')
parser.add_argument(
'--use_test_ca',
default=False,
type=resources.parse_bool,
help='replace platform root CAs with ca.pem')
parser.add_argument(
'--server_host_override',
type=str,
help='the server host to which to claim to connect')
parser.add_argument(
'--oauth_scope', type=str, help='scope for OAuth tokens')
parser.add_argument(
'--default_service_account',
type=str,
help='email address of the default service account')
return parser.parse_args()
def _stub(args):
target = '{}:{}'.format(args.server_host, args.server_port)
if args.test_case == 'oauth2_auth_token':
google_credentials, unused_project_id = google_auth.default(
scopes=[args.oauth_scope])
google_credentials.refresh(google_auth.transport.requests.Request())
call_credentials = grpc.access_token_call_credentials(
google_credentials.token)
elif args.test_case == 'compute_engine_creds':
google_credentials, unused_project_id = google_auth.default(
scopes=[args.oauth_scope])
call_credentials = grpc.metadata_call_credentials(
google_auth.transport.grpc.AuthMetadataPlugin(
credentials=google_credentials,
request=google_auth.transport.requests.Request()))
elif args.test_case == 'jwt_token_creds':
google_credentials = google_auth_jwt.OnDemandCredentials.from_service_account_file(
os.environ[google_auth.environment_vars.CREDENTIALS])
call_credentials = grpc.metadata_call_credentials(
google_auth.transport.grpc.AuthMetadataPlugin(
credentials=google_credentials, request=None))
else:
call_credentials = None
if args.use_tls:
if args.use_test_ca:
root_certificates = resources.test_root_certificates()
else:
root_certificates = None # will load default roots.
channel_credentials = grpc.ssl_channel_credentials(root_certificates)
if call_credentials is not None:
channel_credentials = grpc.composite_channel_credentials(
channel_credentials, call_credentials)
channel_opts = None
if args.server_host_override:
channel_opts = ((
'grpc.ssl_target_name_override',
args.server_host_override,
),)
channel = grpc.secure_channel(target, channel_credentials, channel_opts)
else:
channel = grpc.insecure_channel(target)
if args.test_case == "unimplemented_service":
return test_pb2_grpc.UnimplementedServiceStub(channel)
else:
return test_pb2_grpc.TestServiceStub(channel)
def _test_case_from_arg(test_case_arg):
for test_case in methods.TestCase:
if test_case_arg == test_case.value:
return test_case
else:
raise ValueError('No test case "%s"!' % test_case_arg)
def test_interoperability():
args = _args()
stub = _stub(args)
test_case = _test_case_from_arg(args.test_case)
test_case.test_interoperability(stub, args)
if __name__ == '__main__':
test_interoperability()
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