dnmgmt/bin/whoisd

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
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# This file is part of dnmgmt, a number resource management system
# Licensed under GNU General Public License v3 or later
# Written by Sebastian Lohff (seba@someserver.de)
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import argparse
import socketserver
import os
import sys
import django
import logging
import select
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dnmgmt.settings")
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(BASE_DIR)
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django.setup()
from whoisdb.helpers import findInDatabase, getWhoisObjectFields
log = logging.getLogger("whoisd")
__VERSION__ = '0.1'
class WhoisHandler(socketserver.BaseRequestHandler):
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header = "% This is the DARKNET database query service.\n" \
"% The objects should be in something like RPSL format.\n" \
"%\n" \
"% The DARKNET database is subject to terms and conditions.\n" \
"% Mostly these are \"be nice\" and \"don't knowingly break things\".\n" \
"\n"
def handle(self):
self.request.sendall(self.header.encode())
line = self.request.recv(1024)
line = line.split(b"\n", 2)[0].strip()
print("Request object is %s" % line)
log.info("Request by %s for %s" % (self.request.getpeername()[0], line))
self.request.send(b"\n")
objs = findInDatabase(line.decode())
if len(objs) > 0:
self.request.sendall(("%% %d result%s\n" % (len(objs), "" if len(objs)==1 else "s")).encode())
for obj in objs:
self.sendObject(obj)
else:
self.request.sendall(b"%% NOT FOUND\n\n")
def sendObject(self, obj):
result = [
"",
"%% Object %s (%s)" % (obj, obj.getClassName()),
""
]
for field, value in getWhoisObjectFields(obj, False):
fieldName = field.lower().replace(" ", "-") + ":"
if not value:
value = ""
if hasattr(value, "through"):
for v in value.all():
result.append("%-16s %s" % (fieldName, v))
else:
result.append("%-16s %s" % (fieldName, value))
result.extend(["", ""])
self.request.sendall("\n".join(result).encode())
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class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
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allow_reuse_address = True
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def _parser():
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parser = argparse.ArgumentParser(
#prog='foo',
#description='do some awesome foo',
)
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parser.add_argument("-p", "--port", default=43, type=int, help="whoisd port")
#parser.add_argument("-v", "--verbose", default=False, action="store_true", help="Be more verbose")
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parser.add_argument("--version", action="version", version="%(prog)s " + __VERSION__)
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return parser
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def main():
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parser = _parser()
args = parser.parse_args()
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server = ThreadedTCPServer(('', args.port), WhoisHandler)
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while True:
try:
server.serve_forever()
except select.error as e:
log.exception(e)
except KeyboardInterrupt:
log.info("^c hit, quitting.")
break
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server.server_close()
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if __name__ == '__main__':
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main()