text: """
   * Licensed to DSecure.me under one or more contributor
   * license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright
   * ownership. DSecure.me 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.
   *
  """
  import re
  from django.http import HttpResponse
  from django.shortcuts import redirect
  from rest_framework.generics import get_object_or_404
  from rest_framework.exceptions import NotFound
  from pathlib import Path
  
  from vmc.scanners.models import Scan
  
  
  def download_scan(request, scan_id):
  
      if not request.user.is_authenticated:
          return redirect(F'/admin/login/?next={request.path}')
  
      if not re.match(r"[a-f0-9]{64}", scan_id):
          raise NotFound
  
      if request.method == 'GET' and scan_id:
          scan = get_object_or_404(Scan, file_id=scan_id)
          file_path = Path(scan.file)
          with file_path.open(mode="rb") as file_handle:
              response = HttpResponse(file_handle, content_type="text/xml")
              response["Content-Disposition"] = F"scan_file; filename={file_path.name}"
              response["Content-Length"] = str(file_path.stat().st_size)
              return response
      raise NotFound()
  