src/python/location-query.in

   1 #!/usr/bin/python3
   2 ###############################################################################
   3 #                                                                             #
   4 # libloc - A library to determine the location of someone on the Internet     #
   5 #                                                                             #
   6 # Copyright (C) 2017 IPFire Development Team <info@ipfire.org>                #
   7 #                                                                             #
   8 # This library is free software; you can redistribute it and/or               #
   9 # modify it under the terms of the GNU Lesser General Public                  #
  10 # License as published by the Free Software Foundation; either                #
  11 # version 2.1 of the License, or (at your option) any later version.          #
  12 #                                                                             #
  13 # This library is distributed in the hope that it will be useful,             #
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU           #
  16 # Lesser General Public License for more details.                             #
  17 #                                                                             #
  18 ###############################################################################
  19
  20 import argparse
  21 import gettext
  22 import ipaddress
  23 import os
  24 import socket
  25 import sys
  26 import syslog
  27
  28 # Load our location module
  29 import location
  30
  31 # i18n
  32 def _(singular, plural=None, n=None):
  33         if plural:
  34                 return gettext.dngettext("libloc", singular, plural, n)
  35
  36         return gettext.dgettext("libloc", singular)
  37
  38 # Output formatters
  39
  40 class OutputFormatter(object):
  41         def __init__(self, ns):
  42                 self.ns = ns
  43
  44         def __enter__(self):
  45                 # Open the output
  46                 self.open()
  47
  48                 return self
  49
  50         def __exit__(self, type, value, tb):
  51                 if tb is None:
  52                         self.close()
  53
  54         @property
  55         def name(self):
  56                 if "country_code" in self.ns:
  57                         return "networks_country_%s" % self.ns.country_code[0]
  58
  59                 elif "asn" in self.ns:
  60                         return "networks_AS%s" % self.ns.asn[0]
  61
  62         def open(self):
  63                 pass
  64
  65         def close(self):
  66                 pass
  67
  68         def network(self, network):
  69                 print(network)
  70
  71
  72 class IpsetOutputFormatter(OutputFormatter):
  73         """
  74                 For nftables
  75         """
  76         def open(self):
  77                 print("create %s hash:net family inet hashsize 1024 maxelem 65536" % self.name)
  78
  79         def network(self, network):
  80                 print("add %s %s" % (self.name, network))
  81
  82
  83 class NftablesOutputFormatter(OutputFormatter):
  84         """
  85                 For nftables
  86         """
  87         def open(self):
  88                 print("define %s = {" % self.name)
  89
  90         def close(self):
  91                 print("}")
  92
  93         def network(self, network):
  94                 print(" %s," % network)
  95
  96
  97 class XTGeoIPOutputFormatter(OutputFormatter):
  98         """
  99                 Formats the output in that way, that it can be loaded by
 100                 the xt_geoip kernel module from xtables-addons.
 101         """
 102         def network(self, network):
 103                 n = ipaddress.ip_network("%s" % network)
 104
 105                 for address in (n.network_address, n.broadcast_address):
 106                         bytes = socket.inet_pton(
 107                                 socket.AF_INET6 if address.version == 6 else socket.AF_INET,
 108                                 "%s" % address,
 109                         )
 110
 111                         os.write(1, bytes)
 112
 113
 114 class CLI(object):
 115         output_formats = {
 116                 "ipset"    : IpsetOutputFormatter,
 117                 "list"     : OutputFormatter,
 118                 "nftables" : NftablesOutputFormatter,
 119                 "xt_geoip" : XTGeoIPOutputFormatter,
 120         }
 121
 122         def parse_cli(self):
 123                 parser = argparse.ArgumentParser(
 124                         description=_("Location Database Command Line Interface"),
 125                 )
 126                 subparsers = parser.add_subparsers()
 127
 128                 # Global configuration flags
 129                 parser.add_argument("--debug", action="store_true",
 130                         help=_("Enable debug output"))
 131
 132                 # version
 133                 parser.add_argument("--version", action="version",
 134                         version="%%(prog)s %s" % location.__version__)
 135
 136                 # database
 137                 parser.add_argument("--database", "-d",
 138                         default="@databasedir@/database.db", help=_("Path to database"),
 139                 )
 140
 141                 # lookup an IP address
 142                 lookup = subparsers.add_parser("lookup",
 143                         help=_("Lookup one or multiple IP addresses"),
 144                 )
 145                 lookup.add_argument("address", nargs="+")
 146                 lookup.set_defaults(func=self.handle_lookup)
 147
 148                 # Get AS
 149                 get_as = subparsers.add_parser("get-as",
 150                         help=_("Get information about one or multiple Autonomous Systems"),
 151                 )
 152                 get_as.add_argument("asn", nargs="+")
 153                 get_as.set_defaults(func=self.handle_get_as)
 154
 155                 # Search for AS
 156                 search_as = subparsers.add_parser("search-as",
 157                         help=_("Search for Autonomous Systems that match the string"),
 158                 )
 159                 search_as.add_argument("query", nargs=1)
 160                 search_as.set_defaults(func=self.handle_search_as)
 161
 162                 # List all networks in an AS
 163                 list_networks_by_as = subparsers.add_parser("list-networks-by-as",
 164                         help=_("Lists all networks in an AS"),
 165                 )
 166                 list_networks_by_as.add_argument("asn", nargs=1, type=int)
 167                 list_networks_by_as.add_argument("--output-format",
 168                         choices=self.output_formats.keys(), default="list")
 169                 list_networks_by_as.set_defaults(func=self.handle_list_networks_by_as)
 170
 171                 # List all networks in a country
 172                 list_networks_by_cc = subparsers.add_parser("list-networks-by-cc",
 173                         help=_("Lists all networks in a country"),
 174                 )
 175                 list_networks_by_cc.add_argument("country_code", nargs=1)
 176                 list_networks_by_cc.add_argument("--output-format",
 177                         choices=self.output_formats.keys(), default="list")
 178                 list_networks_by_cc.set_defaults(func=self.handle_list_networks_by_cc)
 179
 180                 args = parser.parse_args()
 181
 182                 # Print usage if no action was given
 183                 if not "func" in args:
 184                         parser.print_usage()
 185                         sys.exit(2)
 186
 187                 return args
 188
 189         def run(self):
 190                 # Parse command line arguments
 191                 args = self.parse_cli()
 192
 193                 # Open database
 194                 try:
 195                         db = location.Database(args.database)
 196                 except FileNotFoundError as e:
 197                         sys.stderr.write("location-query: Could not open database %s: %s\n" \
 198                                 % (args.database, e))
 199                         sys.exit(1)
 200
 201                 # Call function
 202                 ret = args.func(db, args)
 203
 204                 # Return with exit code
 205                 if ret:
 206                         sys.exit(ret)
 207
 208                 # Otherwise just exit
 209                 sys.exit(0)
 210
 211         def handle_lookup(self, db, ns):
 212                 ret = 0
 213
 214                 for address in ns.address:
 215                         try:
 216                                 n = db.lookup(address)
 217                         except ValueError:
 218                                 print(_("Invalid IP address: %s") % address, file=sys.stderr)
 219
 220                         args = {
 221                                 "address" : address,
 222                                 "network" : n,
 223                         }
 224
 225                         # Nothing found?
 226                         if not n:
 227                                 print(_("Nothing found for %(address)s") % args, file=sys.stderr)
 228                                 ret = 1
 229                                 continue
 230
 231                         # Try to retrieve the AS if we have an AS number
 232                         if n.asn:
 233                                 a = db.get_as(n.asn)
 234
 235                                 # If we have found an AS we will print it in the message
 236                                 if a:
 237                                         args.update({
 238                                                 "as" : a,
 239                                         })
 240
 241                                         print(_("%(address)s belongs to %(network)s which is a part of %(as)s") % args)
 242                                         continue
 243
 244                         print(_("%(address)s belongs to %(network)s") % args)
 245
 246                 return ret
 247
 248         def handle_get_as(self, db, ns):
 249                 """
 250                         Gets information about Autonomous Systems
 251                 """
 252                 ret = 0
 253
 254                 for asn in ns.asn:
 255                         try:
 256                                 asn = int(asn)
 257                         except ValueError:
 258                                 print(_("Invalid ASN: %s") % asn, file=sys.stderr)
 259                                 ret = 1
 260                                 continue
 261
 262                         # Fetch AS from database
 263                         a = db.get_as(asn)
 264
 265                         # Nothing found
 266                         if not a:
 267                                 print(_("Could not find AS%s") % asn, file=sys.stderr)
 268                                 ret = 1
 269                                 continue
 270
 271                         print(_("AS%(asn)s belongs to %(name)s") % { "asn" : a.number, "name" : a.name })
 272
 273                 return ret
 274
 275         def handle_search_as(self, db, ns):
 276                 for query in ns.query:
 277                         # Print all matches ASes
 278                         for a in db.search_as(query):
 279                                 print(a)
 280
 281         def __get_output_formatter(self, ns):
 282                 try:
 283                         cls = self.output_formats[ns.output_format]
 284                 except KeyError:
 285                         cls = OutputFormatter
 286
 287                 return cls(ns)
 288
 289         def handle_list_networks_by_as(self, db, ns):
 290                 with self.__get_output_formatter(ns) as f:
 291                         for asn in ns.asn:
 292                                 # Print all matching networks
 293                                 for n in db.search_networks(asn=asn):
 294                                         f.network(n)
 295
 296         def handle_list_networks_by_cc(self, db, ns):
 297                 with self.__get_output_formatter(ns) as f:
 298                         for country_code in ns.country_code:
 299                                 # Print all matching networks
 300                                 for n in db.search_networks(country_code=country_code):
 301                                         f.network(n)
 302
 303
 304 def main():
 305         # Run the command line interface
 306         c = CLI()
 307         c.run()
 308
 309 main()