1 # Copyright 2023 The gRPC Authors 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 """Server of the Python example of TLS.""" 15 16 from concurrent import futures 17 import logging 18 19 import _credentials 20 import grpc 21 22 helloworld_pb2, helloworld_pb2_grpc = grpc.protos_and_services( 23 "helloworld.proto" 24 ) 25 26 _LOGGER = logging.getLogger(__name__) 27 _LOGGER.setLevel(logging.INFO) 28 29 _PORT = 50051 30 _LISTEN_ADDRESS_TEMPLATE = "localhost:%d" 31 32 33 class SimpleGreeter(helloworld_pb2_grpc.GreeterServicer): 34 def SayHello(self, request, unused_context): 35 return helloworld_pb2.HelloReply(message="Hello, %s!" % request.name) 36 37 38 def serve(): 39 server = grpc.server(futures.ThreadPoolExecutor()) 40 helloworld_pb2_grpc.add_GreeterServicer_to_server(SimpleGreeter(), server) 41 42 # Loading credentials 43 server_credentials = grpc.ssl_server_credentials( 44 ( 45 ( 46 _credentials.SERVER_CERTIFICATE_KEY, 47 _credentials.SERVER_CERTIFICATE, 48 ), 49 ) 50 ) 51 52 # Pass down credentials 53 server.add_secure_port(_LISTEN_ADDRESS_TEMPLATE % _PORT, server_credentials) 54 55 server.start() 56 logging.info("Server is listening at port :%d", _PORT) 57 server.wait_for_termination() 58 59 60 if __name__ == "__main__": 61 logging.basicConfig(level=logging.INFO) 62 serve() 63