new_contents: #!/usr/bin/env python
  # Copyright (C) 2015 Job Snijders <job@instituut.net>
  #
  # This file is part of IRR Explorer
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  # 1. Redistributions of source code must retain the above copyright notice,
  # this list of conditions and the following disclaimer.
  #
  # 2. Redistributions in binary form must reproduce the above copyright notice,
  # this list of conditions and the following disclaimer in the documentation
  # and/or other materials provided with the distribution.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  # ARISING IN ANY WAY OUT OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  # POSSIBILITY OF SUCH DAMAGE.
  
  import radix
  import time
  import threading
  import multiprocessing
  
  
  class RIPELookupWorker(threading.Thread):
      """
      A lookup thread specific to the BGP data, might be good
      to merge this into the IRR lookup worker at some point.
      """
  
      def __init__(self, tree, prefixes, lookup_queue, result_queue):
          threading.Thread.__init__(self)
          self.tree = tree
          self.prefixes = prefixes
          self.lookup_queue = lookup_queue
          self.result_queue = result_queue
          #FIXME shipping with hardcoded data is not the nicest approach
          for prefix in open('data/ripe-managed-space.txt').readlines():
              self.tree.add(prefix.strip())
              self.prefixes.append(prefix.strip())
  
      def run(self):
          while True:
              lookup, target = self.lookup_queue.get()
              if not lookup:
                  continue
              if lookup == "is_covered":
                  result = self.tree.search_worst(target).prefix
                  self.result_queue.put(result)
  
              self.lookup_queue.task_done()
  
  
  class RIPEWorker(multiprocessing.Process):
      """
      FIXME: dynamically fetch & update the RIPE managed tree
      """
      def __init__(self, lookup_queue, result_queue):
          multiprocessing.Process.__init__(self)
          self.lookup_queue = lookup_queue
          self.result_queue = result_queue
          self.tree = radix.Radix()
          self.prefixes = []
          self.dbname = "RIPE-AUTH"
          self.lookup = RIPELookupWorker(self.tree, self.prefixes,
                                         self.lookup_queue, self.result_queue)
          self.lookup.setDaemon(True)
          self.lookup.start()
  
      def run(self):
          print "info: loaded the tree"
  
  if __name__ == "__main__":
      lookup_queue = multiprocessing.JoinableQueue()
      result_queue = multiprocessing.JoinableQueue()
  
      a = RIPEWorker(lookup_queue, result_queue)
      a.start()
      time.sleep(1)
      lookup_queue.put(("is_covered", "194.33.96.0/24"))
      lookup_queue.join()
      print result_queue.get()
  
subject: Add RIPE space lookup thread