Coro/myhttpd/netgeo.pl

#!/usr/bin/perl

# APNIC refer: KRNIC (for 211.104.0.0)

use Socket;
use Fcntl;

use Coro;
use Coro::Event;
use Coro::Semaphore;
use Coro::SemaphoreSet;
use Coro::Socket;

use BerkeleyDB;

$Event::DIED = sub {
   Event::verbose_exception_handler(@_);
   #Event::unloop_all();
};

tie %netgeo::whois, BerkeleyDB::Btree,
    -Env => $db_env,
    -Filename => "whois",
    -Flags => DB_CREATE,
       or die "unable to create/open whois table";
$netgeo::iprange = new BerkeleyDB::Btree
    -Env => $db_env,
    -Filename => "iprange",
    -Flags => DB_CREATE,
       or die "unable to create/open iprange table";

package Whois;

use Coro::Event;

sub new {
   my $class = shift;
   my $name = shift;
   my $ip = shift;
   my $self = bless { name => $name, ip => $ip, @_ }, $class;
   $self->{maxjobs} = new Coro::Semaphore $self->{maxjobs} || 1;
   $self;
}

sub ip {
   $_[0]{ip};
}

sub sanitize {
   $_[1];
}

sub whois_request {
   my ($self, $query) = @_;

   my $id = "$self->{name}\x0$query";
   my $whois = $netgeo::whois{$id};

   unless (defined $whois) {
      print "WHOIS($self->{name},$query)\n";

      my $guard = $self->{maxjobs}->guard;
      my $timeout = 5;

      while () {
         my $fh = new Coro::Socket
                         PeerAddr => $self->ip,
                         PeerPort => 'whois',
                         Timeout  => 30;
         if ($fh) {
            print $fh "$query\n";
            $fh->read($whois, 16*1024); # max 16k. whois stored
            close $fh;
            $whois =~ s/\015?\012/\n/g;
            $whois = $self->sanitize($whois);
            if ($whois eq ""
                or ($whois =~ /query limit/i && $whois =~ /exceeded/i) # ARIN
                or ($whois =~ /wait a while and try again/i) # ARIN
                or ($whois =~ /^%ERROR:202:/) # RIPE/APNIC
            ) {
               print "retrying in $timeout seconds\n";#d#
               do_timer(desc => "timer2", after => $timeout);
               $timeout *= 2;
               $timeout = 1 if $timeout > 600;
            } else {
               last;
            }
         }
      }

      $netgeo::whois{$id} = $whois;
   }

   $whois;
}

package Whois::ARIN;

use Date::Parse;

use base Whois;

sub sanitize {
   local $_ = $_[1];
   s/\n[\t ]{6,}([0-9.]+ - [0-9.]+)/ $1/g;
   $_;
}

# there are only two problems with arin's whois database:
# a) the data cannot be trusted and often is old or even wrong
# b) the database format is nonparsable
#    (no spaces between netname/ip and netnames can end in digits ;)
# of course, the only source to find out about global
# address distribution is... arin.
sub ip_request {
   my ($self, $ip) = @_;

   my $whois = $self->whois_request($ip);
   
   return () if $whois =~ /^No match/;

   if ($whois =~ /^To single out one record/m) {
      my $handle;
      while ($whois =~ /\G\S.*\(([A-Z0-9\-]+)\).*\n/mg) {
         $handle = $1;
         #return if $handle =~ /-(RIPE|APNIC)/; # heuristic, bbut bad because ripe might not have better info
      }
      $handle or die "$whois ($ip): unparseable multimatch\n";
      $whois = $self->whois_request("!$handle");
   }

   my ($address, $info, $coordinator, undef) = split /\n\n/, $whois;

   $info =~ /^\s+Netname: (\S+)$/mi
      or die "$whois($ip): no netname\n";
   my $netname = $1;

   $info =~ /^\s+Netblock: ([0-9.]+\s+-\s+[0-9.]+)\s*$/mi
      or die "$whois($ip): no netblock\n";
   my $netblock = $1;

   my $maintainer;

   if ($info =~ /^\s+Maintainer: (\S+)\s*$/mi) {
      $maintainer = "*ma: $1\n";
      return if $1 =~ /^(?:AP|RIPE)$/;
   }

   $coordinator =~ s/^\s+Coordinator:\s*//si
      or $coordinator = "";

   $address =~ s/\n\s*(\S+)$//
      or die "$whois($ip): no parseable country ($address)\n";
   my $country = $1;

   $address     =~ s/^\s*/*de: /mg;
   $coordinator =~ s/^\s*/*ad: /mg;

   $whois = <<EOF;
*in: $netblock
*na: $netname
*cy: $country
$maintainer$address
$coordinator
EOF
   $whois =~ s/\n+$//;
   $whois;
}

package Whois::RIPE;

use base Whois;

sub sanitize {
   local $_ = $_[1];
   s/^%.*\n//gm;
   s/^\n+//;
   s/\n*$/\n/;
   $_;
}

sub ip_request {
   my ($self, $ip) = @_;

   my $whois = $self->whois_request("-FSTin $ip");

   $whois =~ /^\*in: 0\.0\.0\.0 - 255\.255\.255\.255/
      and return;

   $whois =~  /^\*ac: XXX0/m # 192.0.0.0
      and return;

   $whois =~ /^%ERROR:/m
      and return;

   #while ($whois =~ s/^\*(?:ac|tc):\s+(\S+)\n//m) {
   #   $whois .= $self->whois_request("-FSTpn $1");
   #}

   $whois =~ s/^\*(?:pn|nh|mb|ch|so|rz|ny|st|rm):.*\n//mg;

   $whois =~ s/\n+$//;

   $whois;
}

package netgeo;

use Socket;
use BerkeleyDB;

sub ip2int($) {
   unpack "N", inet_aton $_[0];
}

sub int2ip($) {
   inet_ntoa pack "N", $_[0];
}

our %WHOIS;

$WHOIS{ARIN}  = new Whois::ARIN ARIN  => "whois.arin.net",  maxjobs => 12;
$WHOIS{RIPE}  = new Whois::RIPE RIPE  => "whois.ripe.net",  maxjobs => 20;
$WHOIS{APNIC} = new Whois::RIPE APNIC => "whois.apnic.net", maxjobs => 20;

$whoislock = new Coro::SemaphoreSet;

sub ip_request {
   my $ip = $_[0];

   my $guard = $whoislock->guard($ip);

   my $c = $iprange->db_cursor;
   my $v;

   if (!$c->c_get((inet_aton $ip), $v, DB_SET_RANGE)) {
      my ($ip0, $ip1, $whois) = split /\x0/, $v;
      my $_ip = ip2int $ip;
      if ($ip0 <= $_ip && $_ip <= $ip1) {
         return $whois;
      }
   }

   my ($arin, $ripe, $apnic);

   $whois = $WHOIS{RIPE}->ip_request($ip)
         || $WHOIS{ARIN} ->ip_request($ip)
         || $WHOIS{APNIC} ->ip_request($ip);

   $whois =~ /^\*in: ([0-9.]+)\s+-\s+([0-9.]+)\s*$/mi
      or do { warn "$whois($ip): no addresses found\n", last };

   my ($ip0, $ip1) = ($1, $2);

   my $_ip  = ip2int($ip);
   my $_ip0 = ip2int($ip0);
   my $_ip1 = ip2int($ip1);

   if ($_ip0 + 256 < $_ip1) {
      $_ip  = $_ip & 0xffffff00;
      $_ip0 = $_ip       if $_ip0 < $_ip;
      $_ip1 = $_ip + 255 if $_ip1 > $_ip + 255;
   }

   $iprange->db_put((pack "N", $_ip1), (join "\x0", $_ip0, $_ip1, $whois));
   (tied %whois)->db_sync;
   $iprange->db_sync;

   $whois;
}


Revision:	1.9
Committed:	Sun May 19 21:00:48 2002 UTC (22 years, 2 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+3 -3 lines
Log Message:	* empty log message *
#	Content
1	#!/usr/bin/perl
2
3	# APNIC refer: KRNIC (for 211.104.0.0)
4
5	use Socket;
6	use Fcntl;
7
8	use Coro;
9	use Coro::Event;
10	use Coro::Semaphore;
11	use Coro::SemaphoreSet;
12	use Coro::Socket;
13
14	use BerkeleyDB;
15
16	$Event::DIED = sub {
17	Event::verbose_exception_handler(@_);
18	#Event::unloop_all();
19	};
20
21	tie %netgeo::whois, BerkeleyDB::Btree,
22	-Env => $db_env,
23	-Filename => "whois",
24	-Flags => DB_CREATE,
25	or die "unable to create/open whois table";
26	$netgeo::iprange = new BerkeleyDB::Btree
27	-Env => $db_env,
28	-Filename => "iprange",
29	-Flags => DB_CREATE,
30	or die "unable to create/open iprange table";
31
32	package Whois;
33
34	use Coro::Event;
35
36	sub new {
37	my $class = shift;
38	my $name = shift;
39	my $ip = shift;
40	my $self = bless { name => $name, ip => $ip, @_ }, $class;
41	$self->{maxjobs} = new Coro::Semaphore $self->{maxjobs} \|\| 1;
42	$self;
43	}
44
45	sub ip {
46	$_[0]{ip};
47	}
48
49	sub sanitize {
50	$_[1];
51	}
52
53	sub whois_request {
54	my ($self, $query) = @_;
55
56	my $id = "$self->{name}\x0$query";
57	my $whois = $netgeo::whois{$id};
58
59	unless (defined $whois) {
60	print "WHOIS($self->{name},$query)\n";
61
62	my $guard = $self->{maxjobs}->guard;
63	my $timeout = 5;
64
65	while () {
66	my $fh = new Coro::Socket
67	PeerAddr => $self->ip,
68	PeerPort => 'whois',
69	Timeout => 30;
70	if ($fh) {
71	print $fh "$query\n";
72	$fh->read($whois, 16*1024); # max 16k. whois stored
73	close $fh;
74	$whois =~ s/\015?\012/\n/g;
75	$whois = $self->sanitize($whois);
76	if ($whois eq ""
77	or ($whois =~ /query limit/i && $whois =~ /exceeded/i) # ARIN
78	or ($whois =~ /wait a while and try again/i) # ARIN
79	or ($whois =~ /^%ERROR:202:/) # RIPE/APNIC
80	) {
81	print "retrying in $timeout seconds\n";#d#
82	do_timer(desc => "timer2", after => $timeout);
83	$timeout *= 2;
84	$timeout = 1 if $timeout > 600;
85	} else {
86	last;
87	}
88	}
89	}
90
91	$netgeo::whois{$id} = $whois;
92	}
93
94	$whois;
95	}
96
97	package Whois::ARIN;
98
99	use Date::Parse;
100
101	use base Whois;
102
103	sub sanitize {
104	local $_ = $_[1];
105	s/\n[\t ]{6,}([0-9.]+ - [0-9.]+)/ $1/g;
106	$_;
107	}
108
109	# there are only two problems with arin's whois database:
110	# a) the data cannot be trusted and often is old or even wrong
111	# b) the database format is nonparsable
112	# (no spaces between netname/ip and netnames can end in digits ;)
113	# of course, the only source to find out about global
114	# address distribution is... arin.
115	sub ip_request {
116	my ($self, $ip) = @_;
117
118	my $whois = $self->whois_request($ip);
119
120	return () if $whois =~ /^No match/;
121
122	if ($whois =~ /^To single out one record/m) {
123	my $handle;
124	while ($whois =~ /\G\S.\(([A-Z0-9\-]+)\).\n/mg) {
125	$handle = $1;
126	#return if $handle =~ /-(RIPE\|APNIC)/; # heuristic, bbut bad because ripe might not have better info
127	}
128	$handle or die "$whois ($ip): unparseable multimatch\n";
129	$whois = $self->whois_request("!$handle");
130	}
131
132	my ($address, $info, $coordinator, undef) = split /\n\n/, $whois;
133
134	$info =~ /^\s+Netname: (\S+)$/mi
135	or die "$whois($ip): no netname\n";
136	my $netname = $1;
137
138	$info =~ /^\s+Netblock: ([0-9.]+\s+-\s+[0-9.]+)\s*$/mi
139	or die "$whois($ip): no netblock\n";
140	my $netblock = $1;
141
142	my $maintainer;
143
144	if ($info =~ /^\s+Maintainer: (\S+)\s*$/mi) {
145	$maintainer = "*ma: $1\n";
146	return if $1 =~ /^(?:AP\|RIPE)$/;
147	}
148
149	$coordinator =~ s/^\s+Coordinator:\s*//si
150	or $coordinator = "";
151
152	$address =~ s/\n\s*(\S+)$//
153	or die "$whois($ip): no parseable country ($address)\n";
154	my $country = $1;
155
156	$address =~ s/^\s/de: /mg;
157	$coordinator =~ s/^\s/ad: /mg;
158
159	$whois = <<EOF;
160	*in: $netblock
161	*na: $netname
162	*cy: $country
163	$maintainer$address
164	$coordinator
165	EOF
166	$whois =~ s/\n+$//;
167	$whois;
168	}
169
170	package Whois::RIPE;
171
172	use base Whois;
173
174	sub sanitize {
175	local $_ = $_[1];
176	s/^%.*\n//gm;
177	s/^\n+//;
178	s/\n*$/\n/;
179	$_;
180	}
181
182	sub ip_request {
183	my ($self, $ip) = @_;
184
185	my $whois = $self->whois_request("-FSTin $ip");
186
187	$whois =~ /^\*in: 0\.0\.0\.0 - 255\.255\.255\.255/
188	and return;
189
190	$whois =~ /^\*ac: XXX0/m # 192.0.0.0
191	and return;
192
193	$whois =~ /^%ERROR:/m
194	and return;
195
196	#while ($whois =~ s/^\*(?:ac\|tc):\s+(\S+)\n//m) {
197	# $whois .= $self->whois_request("-FSTpn $1");
198	#}
199
200	$whois =~ s/^\(?:pn\|nh\|mb\|ch\|so\|rz\|ny\|st\|rm):.\n//mg;
201
202	$whois =~ s/\n+$//;
203
204	$whois;
205	}
206
207	package netgeo;
208
209	use Socket;
210	use BerkeleyDB;
211
212	sub ip2int($) {
213	unpack "N", inet_aton $_[0];
214	}
215
216	sub int2ip($) {
217	inet_ntoa pack "N", $_[0];
218	}
219
220	our %WHOIS;
221
222	$WHOIS{ARIN} = new Whois::ARIN ARIN => "whois.arin.net", maxjobs => 12;
223	$WHOIS{RIPE} = new Whois::RIPE RIPE => "whois.ripe.net", maxjobs => 20;
224	$WHOIS{APNIC} = new Whois::RIPE APNIC => "whois.apnic.net", maxjobs => 20;
225
226	$whoislock = new Coro::SemaphoreSet;
227
228	sub ip_request {
229	my $ip = $_[0];
230
231	my $guard = $whoislock->guard($ip);
232
233	my $c = $iprange->db_cursor;
234	my $v;
235
236	if (!$c->c_get((inet_aton $ip), $v, DB_SET_RANGE)) {
237	my ($ip0, $ip1, $whois) = split /\x0/, $v;
238	my $_ip = ip2int $ip;
239	if ($ip0 <= $_ip && $_ip <= $ip1) {
240	return $whois;
241	}
242	}
243
244	my ($arin, $ripe, $apnic);
245
246	$whois = $WHOIS{RIPE}->ip_request($ip)
247	\|\| $WHOIS{ARIN} ->ip_request($ip)
248	\|\| $WHOIS{APNIC} ->ip_request($ip);
249
250	$whois =~ /^\in: ([0-9.]+)\s+-\s+([0-9.]+)\s$/mi
251	or do { warn "$whois($ip): no addresses found\n", last };
252
253	my ($ip0, $ip1) = ($1, $2);
254
255	my $_ip = ip2int($ip);
256	my $_ip0 = ip2int($ip0);
257	my $_ip1 = ip2int($ip1);
258
259	if ($_ip0 + 256 < $_ip1) {
260	$_ip = $_ip & 0xffffff00;
261	$_ip0 = $_ip if $_ip0 < $_ip;
262	$_ip1 = $_ip + 255 if $_ip1 > $_ip + 255;
263	}
264
265	$iprange->db_put((pack "N", $_ip1), (join "\x0", $_ip0, $_ip1, $whois));
266	(tied %whois)->db_sync;
267	$iprange->db_sync;
268
269	$whois;
270	}
271
272
273