text: #
  # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you 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 tempfile import NamedTemporaryFile
  
  from airflow.models import BaseOperator
  from airflow.providers.amazon.aws.hooks.s3 import S3Hook
  from airflow.providers.ftp.hooks.ftp import FTPHook
  
  
  class FTPToS3Operator(BaseOperator):
      """
      This operator enables the transferring of files from FTP server to S3.
  
      :param s3_bucket: The targeted s3 bucket in which upload the file to
      :type s3_bucket: str
      :param s3_key: The targeted s3 key. This is the specified file path for
          uploading the file to S3.
      :type s3_key: str
      :param ftp_path: The ftp remote path, including the file.
      :type ftp_path: str
      :param ftp_conn_id: The ftp connection id. The name or identifier for
          establishing a connection to the FTP server.
      :type ftp_conn_id: str
      :param aws_conn_id: The s3 connection id. The name or identifier for
          establishing a connection to S3
      :type aws_conn_id: str
      :param replace: A flag to decide whether or not to overwrite the key
          if it already exists. If replace is False and the key exists, an
          error will be raised.
      :type replace: bool
      :param encrypt: If True, the file will be encrypted on the server-side
          by S3 and will be stored in an encrypted form while at rest in S3.
      :type encrypt: bool
      :param gzip: If True, the file will be compressed locally
      :type gzip: bool
      :param acl_policy: String specifying the canned ACL policy for the file being
          uploaded to the S3 bucket.
      :type acl_policy: str
      """
  
      template_fields = (
          's3_bucket',
          's3_key',
          'ftp_path',
      )
  
      def __init__(
          self,
          s3_bucket,
          s3_key,
          ftp_path,
          ftp_conn_id='ftp_default',
          aws_conn_id='aws_default',
          replace=False,
          encrypt=False,
          gzip=False,
          acl_policy=None,
          *args,
          **kwargs,
      ):
          super().__init__(*args, **kwargs)
          self.s3_bucket = s3_bucket
          self.s3_key = s3_key
          self.ftp_path = ftp_path
          self.aws_conn_id = aws_conn_id
          self.ftp_conn_id = ftp_conn_id
          self.replace = replace
          self.encrypt = encrypt
          self.gzip = gzip
          self.acl_policy = acl_policy
  
      def execute(self, context):
          s3_hook = S3Hook(self.aws_conn_id)
          ftp_hook = FTPHook(ftp_conn_id=self.ftp_conn_id)
  
          with NamedTemporaryFile() as local_tmp_file:
              ftp_hook.retrieve_file(
                  remote_full_path=self.ftp_path, local_full_path_or_buffer=local_tmp_file.name
              )
  
              s3_hook.load_file(
                  filename=local_tmp_file.name,
                  key=self.s3_key,
                  bucket_name=self.s3_bucket,
                  replace=self.replace,
                  encrypt=self.encrypt,
                  gzip=self.gzip,
                  acl_policy=self.acl_policy,
              )
  