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OpticalAttackMitigatorClient.py 2.51 KiB
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  • # Copyright 2022-2023 ETSI TeraFlowSDN - TFS OSG (https://tfs.etsi.org/)
    
    #
    # 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.
    
    
    from common.Constants import ServiceNameEnum
    from common.Settings import get_service_host, get_service_port_grpc
    from common.tools.client.RetryDecorator import delay_exponential, retry
    from common.tools.grpc.Tools import grpc_message_to_json
    
    from common.proto.optical_attack_mitigator_pb2 import (AttackDescription,
                                                           AttackResponse)
    from common.proto.optical_attack_mitigator_pb2_grpc import AttackMitigatorStub
    
    
    LOGGER = logging.getLogger(__name__)
    MAX_RETRIES = 15
    DELAY_FUNCTION = delay_exponential(initial=0.01, increment=2.0, maximum=5.0)
    
    RETRY_DECORATOR = retry(
        max_retries=MAX_RETRIES,
        delay_function=DELAY_FUNCTION,
        prepare_method_name="connect",
    )
    
    
    
    class OpticalAttackMitigatorClient:
    
        def __init__(self, host=None, port=None):
    
            if not host: host = get_service_host(ServiceNameEnum.OPTICALATTACKMITIGATOR)
            if not port: port = get_service_port_grpc(ServiceNameEnum.OPTICALATTACKMITIGATOR)
    
            self.endpoint = "{:s}:{:s}".format(str(host), str(port))
            LOGGER.debug("Creating channel to {:s}...".format(str(self.endpoint)))
    
            self.channel = None
            self.stub = None
            self.connect()
    
            LOGGER.debug("Channel created")
    
    
        def connect(self):
            self.channel = grpc.insecure_channel(self.endpoint)
            self.stub = AttackMitigatorStub(self.channel)
    
        def close(self):
    
            if self.channel is not None:
                self.channel.close()
    
            self.channel = None
            self.stub = None
    
    
        def NotifyAttack(self, request: AttackDescription) -> AttackResponse:
            LOGGER.debug(
                "NotifyAttack request: {:s}".format(str(grpc_message_to_json(request)))
            )
    
            response = self.stub.NotifyAttack(request)
    
            LOGGER.debug(
                "NotifyAttack result: {:s}".format(str(grpc_message_to_json(response)))
            )
    
            return response