source: trunk/tiny-import.pl@ 770

Last change on this file since 770 was 770, checked in by Kris Deugau, 6 years ago

/trunk

Tweak some log-filling bits in a few of the command line tools
  • Property svn:executable set to *
  • Property svn:keywords set to Date Rev Author Id
File size: 32.6 KB
Line 
1#!/usr/bin/perl
2# dnsadmin shell-based import tool for tinydns flatfiles
3##
4# $Id: tiny-import.pl 770 2018-02-13 22:19:14Z kdeugau $
5# Copyright 2012-2014 Kris Deugau <kdeugau@deepnet.cx>
6#
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program. If not, see <http://www.gnu.org/licenses/>.
19##
20
21# WARNING: This is NOT a heavy-duty validator; it is assumed that the data
22# being imported is more or less sane. Only minor structural validation will
23# be done to weed out the most broken records.
24
25use strict;
26use warnings;
27use POSIX;
28use Time::TAI64 qw(:tai);
29
30use lib '.'; ##uselib##
31use DNSDB;
32
33my $dnsdb = new DNSDB;
34
35usage() if !@ARGV;
36
37my %importcfg = (
38 rw => 0,
39 conv => 0,
40 trial => 0,
41 legacy => 0,
42 merge => 0,
43 group => 1,
44 );
45my $gnum = '';
46# Handle some command-line arguments
47while ($ARGV[0] =~ /^-/) {
48 my $arg = shift @ARGV;
49 usage() if $arg !~ /^-(?:[rclmt]+|g\d*)$/;
50 # -r rewrite imported files to comment imported records
51 # -c coerce/downconvert A+PTR = records to PTR
52 # -l swallow A+PTR as-is
53 # -m merge PTR and A/AAAA as possible
54 # -t trial mode; don't commit to DB or actually rewrite flatfile (disables -r)
55 # -g import to specified group (name or ID) instead of group 1
56 $arg =~ s/^-//;
57# for Reasons (none clear), $arg is undefined yet defined, but only when number characters are involved. Ebbeh?
58no warnings qw(uninitialized);
59 if ($arg =~ /^g/) {
60 if ($arg eq 'g') {
61 $importcfg{group} = shift @ARGV;
62 } else {
63 $arg =~ s/^g//;
64 $importcfg{group} = $arg;
65 }
66 } else {
67 my @tmp = split //, $arg;
68 foreach (@tmp) {
69 $importcfg{rw} = 1 if $_ eq 'r';
70 $importcfg{conv} = 1 if $_ eq 'c';
71 $importcfg{legacy} = 1 if $_ eq 'l';
72 $importcfg{merge} = 1 if $_ eq 'm';
73 $importcfg{trial} = 1 if $_ eq 't';
74 }
75 }
76 use warnings qw(uninitialized);
77}
78$importcfg{rw} = 0 if $importcfg{trial};
79
80# allow group names
81if ($importcfg{group} =~ /^\d+$/) {
82 $importcfg{groupname} = $dnsdb->groupName($importcfg{group});
83} else {
84 $importcfg{groupname} = $importcfg{group};
85 $importcfg{group} = $dnsdb->groupID($importcfg{groupname});
86}
87
88die usage() if $importcfg{group} !~ /^\d+$/;
89
90sub usage {
91 die q(usage: tiny-import.pl [-rclt] [-gnn] [-g name] datafile1 datafile2 ... datafileN ...
92 -r Rewrite all specified data files with a warning header indicating the
93 records are now managed by web, and commenting out all imported records.
94 The directory containing any given datafile must be writable.
95 -c Convert any A+PTR (=) record to a bare PTR if the forward domain is
96 not present in the database. Note this does NOT look forward through
97 a single file, nor across multiple files handled in the same run.
98 Multiple passes may be necessary if SOA and = records are heavily
99 intermixed and not clustered together.
100 -l (for "legacy") Force import of A+PTR records as-is. Mutually exclusive
101 with -c. -l takes precedence as -c is lossy.
102 -m Merge PTR and A or AAAA records to A+PTR or AAAA+PTR records where possible
103 -gnnn or -g nnn or -g name
104 Import new zones into this group (group name or ID accepted) instead of
105 the root/default group 1
106 -t Trial run mode; spits out records that would be left unimported.
107 Disables -r if set.
108
109 -r and -c may be combined (-rc)
110
111 datafileN is any tinydns record data file.
112);
113}
114
115my $code;
116my $dbh = $dnsdb->{dbh};
117
118# collect some things for logging
119($dnsdb->{logusername}, undef, undef, undef, undef, undef, $dnsdb->{logfullname}) = getpwuid($<);
120$dnsdb->{logfullname} =~ s/,//g;
121$dnsdb->{loguserid} = 0; # not worth setting up a pseudouser the way the RPC system does
122$dnsdb->{logusername} = $dnsdb->{logusername}."/tiny-import.pl";
123$dnsdb->{logfullname} = $dnsdb->{logusername} if !$dnsdb->{logfullname};
124
125$dbh->{AutoCommit} = 0;
126$dbh->{RaiseError} = 1;
127
128my %cnt;
129my @deferred;
130my $converted = 0;
131my $errstr = '';
132
133foreach my $file (@ARGV) {
134 eval {
135 import(file => $file);
136# import(file => $file, nosoa => 1);
137 $dbh->rollback if $importcfg{trial};
138 $dbh->commit unless $importcfg{trial};
139 };
140 if ($@) {
141 print "Failure trying to import $file: $@\n $errstr\n";
142 unlink ".$file.$$" if $importcfg{rw}; # cleanup
143 $dbh->rollback;
144 }
145}
146
147# print summary count of record types encountered
148foreach (keys %cnt) {
149 print " $_ $cnt{$_}\n";
150}
151
152exit 0;
153
154sub import {
155 our %args = @_;
156 my $flatfile = $args{file};
157 my @fpath = split '/', $flatfile;
158 $fpath[$#fpath] = ".$fpath[$#fpath]";
159 my $rwfile = join('/', @fpath);#.".$$";
160
161 open FLAT, "<$flatfile";
162
163 if ($importcfg{rw}) {
164 open RWFLAT, ">$rwfile" or die "Couldn't open tempfile $rwfile for rewriting: $!\n";
165 print RWFLAT "# WARNING: Records in this file have been imported to the web UI.\n#\n";
166 }
167
168 our $recsth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl,location,stamp,expires,stampactive) ".
169 " VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)");
170
171 # for A/AAAA records
172 our $revcheck = $dbh->prepare("SELECT rdns_id,record_id,ttl FROM records WHERE host=? AND val=? AND type=12");
173 our $mergefwd = $dbh->prepare("UPDATE records SET type=?,domain_id=?,ttl=? WHERE record_id=?");
174 # for PTR records
175 our $fwdcheck = $dbh->prepare("SELECT domain_id,record_id,ttl FROM records WHERE host=? AND val=? AND (type=1 OR type=28)");
176 our $mergerev = $dbh->prepare("UPDATE records SET type=?,rdns_id=?,ttl=? WHERE record_id=?");
177
178 my %deleg;
179
180 my $ok = 0;
181 while (<FLAT>) {
182 if (/^#/ || /^\s*$/) {
183 print RWFLAT "#$_" if $importcfg{rw};
184 next;
185 }
186 chomp;
187 s/\s*$//;
188 my $recstat = recslurp($_);
189 $ok++ if $recstat;
190 if ($importcfg{rw}) {
191 if ($recstat) {
192 print RWFLAT "#$_\n";
193 } else {
194 print RWFLAT "$_\n";
195 }
196 }
197 }
198
199 # Move the rewritten flatfile in place of the original, so that any
200 # external export processing will pick up any remaining records.
201 if ($importcfg{rw}) {
202 close RWFLAT;
203 rename "$rwfile", $flatfile;
204 }
205
206 # Show the failed records
207 foreach (@deferred) {
208 print "failed to import $_\n";
209 }
210
211##fixme: hmm. can't write the record back to the flatfile in the
212# main while above, then come down here and import it anyway, can we?
213# # Try the deferred records again, once.
214# foreach (@deferred) {
215# print "trying $_ again\n";
216# recslurp($_, 1);
217# }
218
219 # .. but we can at least say how many records weren't imported.
220 print "$ok OK, ".scalar(@deferred)." deferred, $converted downconverted records in $flatfile\n";
221 undef @deferred;
222 $converted = 0;
223
224 # Sub for various nonstandard types with lots of pure bytes expressed in octal
225 # Takes a tinydns rdata string and count, returns a list of $count bytes as well
226 # as trimming those logical bytes off the front of the rdata string.
227 sub _byteparse {
228 my $src = shift;
229 my $count = shift;
230 my @ret;
231 for (my $i = 0; $i < $count; $i++) {
232 if ($$src =~ /^\\/) {
233 # we should have an octal bit
234 my ($tmp) = ($$src =~ /^(\\\d{3})/);
235 $tmp =~ s/\\/0/;
236 push @ret, oct($tmp);
237 $$src =~ s/^\\\d{3}//;
238 } else {
239 # we seem to have a byte expressed as an ASCII character
240 my ($tmp) = ($$src =~ /^(.)/);
241 push @ret, ord($tmp);
242 $$src =~ s/^.//;
243 }
244 }
245 return @ret;
246 }
247
248 # Convert octal-coded bytes back to something resembling normal characters, general case
249 sub _deoctal {
250 my $targ = shift;
251 while ($$targ =~ /\\(\d{3})/) {
252 my $sub = chr(oct($1));
253 $$targ =~ s/\\$1/$sub/g;
254 }
255 }
256
257 sub _rdata2string {
258 my $rdata = shift;
259 my $tmpout = '';
260 while ($rdata) {
261 my $bytecount = 0;
262 if ($rdata =~ /^\\/) {
263 ($bytecount) = ($rdata =~ /^(\\\d{3})/);
264 $bytecount =~ s/\\/0/;
265 $bytecount = oct($bytecount);
266 $rdata =~ s/^\\\d{3}//;
267 } else {
268 ($bytecount) = ($rdata =~ /^(.)/);
269 $bytecount = ord($bytecount);
270 $rdata =~ s/^.//;
271 }
272 my @tmp = _byteparse(\$rdata, $bytecount);
273 foreach (@tmp) { $tmpout .= chr($_); }
274##fixme: warn or fail on long (>256? >512? >321?) strings
275 }
276 return $tmpout;
277 }
278
279 sub _rdata2hex {
280 my $rdata = shift;
281 my $tmpout = '';
282 while ($rdata) {
283 my $byte = '';
284 if ($rdata =~ /^\\/) {
285 ($byte) = ($rdata =~ /^(\\\d{3})/);
286 $byte =~ s/\\/0/;
287 $tmpout .= sprintf("%0.2x", oct($byte));
288 $rdata =~ s/^\\\d{3}//;
289 } else {
290 ($byte) = ($rdata =~ /^(.)/);
291 $tmpout .= sprintf("%0.2x", ord($byte));
292 $rdata =~ s/^.//;
293 }
294 }
295 return $tmpout;
296 }
297
298 sub calcstamp {
299 my $stampin = shift;
300 my $ttl = shift;
301 my $pzone = shift;
302 my $revrec = shift;
303
304 return ($ttl, 'n', 'n', '1970-01-01 00:00:00 -0') if !$stampin;
305
306##fixme Yes, this fails for records in 2038 sometime. No, I'm not going to care for a while.
307 $stampin = "\@$stampin"; # Time::TAI64 needs the leading @. Feh.
308 my $u = tai2unix($stampin);
309 $stampin = strftime("%Y-%m-%d %H:%M:%S %z", localtime($u));
310 my $expires = 'n';
311 if ($ttl) {
312 # TTL can stay put.
313 } else {
314 # TTL on import is 0, almost certainly wrong. Get the parent zone's SOA and use the minttl.
315 my $soa = $dnsdb->getSOA('n', $revrec, $pzone);
316 $ttl = $soa->{minttl};
317 $expires = 'y';
318 }
319 return ($ttl, 'y', $expires, $stampin);
320 }
321
322 sub recslurp {
323 my $rec = shift;
324 my $nodefer = shift || 0;
325 my $impok = 1;
326 my $msg;
327
328 $errstr = $rec; # this way at least we have some idea what went <splat>
329
330 if ($rec =~ /^=/) {
331 $cnt{APTR}++;
332
333##fixme: do checks like this for all types
334 if ($rec !~ /^=(?:\*|\\052)?[a-z0-9\._-]+:[\d\.]+:\d*/i) {
335 print "bad A+PTR $rec\n";
336 return;
337 }
338 my ($host,$ip,$ttl,$stamp,$loc) = split /:/, $rec, 5;
339 $host =~ s/^=//;
340 $host =~ s/\.$//;
341 $ttl = -1 if $ttl eq '';
342 $stamp = '' if !$stamp;
343 $loc = '' if !$loc;
344 $loc = '' if $loc =~ /^:+$/;
345 my $fparent = $dnsdb->_hostparent($host);
346 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($ip));
347
348 my $stampactive = 'n';
349 my $expires = 'n';
350
351 # can't set a timestamp on an orphaned record. we'll actually fail import of this record a little later.
352 if ($fparent || $rparent) {
353 if ($fparent) {
354 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
355 } else {
356 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
357 }
358 }
359
360 if ($fparent && $rparent) {
361 $recsth->execute($fparent, $rparent, $host, 65280, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
362 } else {
363 if ($importcfg{legacy}) {
364 # Just import it already! Record may still be subject to downconversion on editing.
365 $fparent = 0 if !$fparent;
366 $rparent = 0 if !$rparent;
367 if ($fparent || $rparent) {
368 $recsth->execute($fparent, $rparent, $host, 65280, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
369 } else {
370 # No parents found, cowardly refusing to add a dangling record
371 push @deferred, $rec unless $nodefer;
372 $impok = 0;
373 }
374 } elsif ($importcfg{conv}) {
375 # downconvert A+PTR if forward zone is not found
376 $recsth->execute(0, $rparent, $host, 12, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
377 $converted++;
378 } else {
379 push @deferred, $rec unless $nodefer;
380 $impok = 0;
381 # print "$tmporig deferred; can't find both forward and reverse zone parents\n";
382 }
383 }
384
385 } elsif ($rec =~ /^C/) {
386 $cnt{CNAME}++;
387
388 my ($host,$targ,$ttl,$stamp,$loc) = split /:/, $rec, 5;
389 $host =~ s/^C//;
390 $host =~ s/\.$//;
391 $host =~ s/^\\052/*/;
392 $ttl = -1 if $ttl eq '';
393 $stamp = '' if !$stamp;
394 $loc = '' if !$loc;
395 $loc = '' if $loc =~ /^:+$/;
396
397 my $stampactive = 'n';
398 my $expires = 'n';
399
400 if ($host =~ /\.arpa$/) {
401 ($code,$msg) = DNSDB::_zone2cidr($host);
402 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
403 if ($rparent) {
404 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
405 $recsth->execute(0, $rparent, $targ, 5, $msg->addr, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
406 } else {
407 push @deferred, $rec unless $nodefer;
408 $impok = 0;
409 # print "$tmporig deferred; can't find parent zone\n";
410 }
411
412##fixme: automagically convert manually maintained sub-/24 delegations
413# my ($subip, $zone) = split /\./, $targ, 2;
414# ($code, $msg) = DNSDB::_zone2cidr($zone);
415# push @{$deleg{"$msg"}{iplist}}, $subip;
416#print "$msg $subip\n";
417
418 } else {
419 my $fparent = $dnsdb->_hostparent($host);
420 if ($fparent) {
421 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
422 $recsth->execute($fparent, 0, $host, 5, $targ, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
423 } else {
424 push @deferred, $rec unless $nodefer;
425 $impok = 0;
426 # print "$tmporig deferred; can't find parent zone\n";
427 }
428 }
429
430 } elsif ($rec =~ /^\&/) {
431 $cnt{NS}++;
432
433 my ($zone,$ip,$ns,$ttl,$stamp,$loc) = split /:/, $rec, 6;
434 $zone =~ s/^\&//;
435 $zone =~ s/\.$//;
436 $ns =~ s/\.$//;
437 $ns = "$ns.ns.$zone" if $ns !~ /\./;
438 $ttl = -1 if $ttl eq '';
439 $stamp = '' if !$stamp;
440 $loc = '' if !$loc;
441 $loc = '' if $loc =~ /^:+$/;
442
443 my $stampactive = 'n';
444 my $expires = 'n';
445
446 if ($zone =~ /\.arpa$/) {
447 ($code,$msg) = DNSDB::_zone2cidr($zone);
448 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?", undef, ("$msg"));
449##fixme, in concert with the CNAME check for same; automagically
450# create "delegate" record instead for subzone NSes: convert above to use = instead of >>=
451# ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ("$msg"))
452# if !$rparent;
453 if ($rparent) {
454 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
455 $recsth->execute(0, $rparent, $ns, 2, $msg, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
456 } else {
457 push @deferred, $rec unless $nodefer;
458 $impok = 0;
459 }
460 } else {
461 my $fparent = $dnsdb->_hostparent($zone);
462 if ($fparent) {
463 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
464 $recsth->execute($fparent, 0, $zone, 2, $ns, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
465 $recsth->execute($fparent, 0, $ns, 2, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive) if $ip;
466 } else {
467 push @deferred, $rec unless $nodefer;
468 $impok = 0;
469 }
470 }
471
472 } elsif ($rec =~ /^\^/) {
473 $cnt{PTR}++;
474
475 my ($rip,$host,$ttl,$stamp,$loc) = split /:/, $rec, 5;
476 $rip =~ s/^\^//;
477 $rip =~ s/\.$//;
478 $ttl = -1 if $ttl eq '';
479 $stamp = '' if !$stamp;
480 $loc = '' if !$loc;
481 $loc = '' if $loc =~ /^:+$/;
482
483 my $stampactive = 'n';
484 my $expires = 'n';
485
486 my $rparent;
487 if (my ($i, $z) = ($rip =~ /^(\d+)\.(\d+-(?:\d+\.){4}in-addr.arpa)$/) ) {
488 ($code,$msg) = DNSDB::_zone2cidr($z);
489 # Exact matches only, because we're in a sub-/24 delegation
490##fixme: flag the type of delegation (range, subnet-with-dash, subnet-with-slash)
491# somewhere so we can recover it on export. probably best to do that in the revzone data.
492 ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet = ?", undef, ("$msg"));
493 $z =~ s/^[\d-]+//;
494 ($code,$msg) = DNSDB::_zone2cidr("$i.$z"); # Get the actual IP and normalize
495 } else {
496 ($code,$msg) = DNSDB::_zone2cidr($rip);
497 ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ("$msg"));
498 }
499
500 if ($rparent) {
501##fixme: really want to pull this DB call inside an if $importcfg{merge},
502# but then we need to duplicate the insert for the case where the matching
503# reverse doesn't exist.
504 $host =~ s/\.$//g; # pure sytactic sugar, we don't store this trailing dot.
505 $fwdcheck->execute($host, $msg->addr);
506 my ($domid, $recid, $rttl) = $fwdcheck->fetchrow_array;
507 if ($importcfg{merge} && $domid) {
508 $ttl = ($rttl < $ttl ? $rttl : $ttl); # Take the shorter TTL
509 $mergerev->execute(($msg->{isv6} ? 65281 : 65280), $rparent, $ttl, $recid);
510 $dnsdb->_log(rdns_id => $rparent, domain_id => $domid, group_id => $importcfg{group},
511 entry => "[ import ] PTR ".$msg->addr." -> $host merged with matching ".
512 ($msg->{isv6} ? 'AAAA' : 'A')." record");
513 } else {
514 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
515 $recsth->execute(0, $rparent, $host, 12, $msg->addr, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
516 }
517 } else {
518 push @deferred, $rec unless $nodefer;
519 $impok = 0;
520 }
521
522 } elsif ($rec =~ /^\+/) {
523 $cnt{A}++;
524
525 my ($host,$ip,$ttl,$stamp,$loc) = split /:/, $rec, 5;
526 $host =~ s/^\+//;
527 $host =~ s/\.$//;
528 $host =~ s/^\\052/*/;
529 $ttl = -1 if $ttl eq '';
530 $stamp = '' if !$stamp;
531 $loc = '' if !$loc;
532 $loc = '' if $loc =~ /^:+$/;
533
534 my $stampactive = 'n';
535 my $expires = 'n';
536
537 my $domid = $dnsdb->_hostparent($host);
538 if ($domid) {
539##fixme: really want to pull this DB call inside an if $importcfg{merge},
540# but then we need to duplicate the insert for the case where the matching
541# reverse doesn't exist.
542 $revcheck->execute($host, $ip);
543 my ($revid, $recid, $rttl) = $revcheck->fetchrow_array;
544 if ($importcfg{merge} && $revid) {
545 $ttl = ($rttl < $ttl ? $rttl : $ttl); # Take the shorter TTL
546 $mergefwd->execute(65280, $domid, $ttl, $recid);
547 $dnsdb->_log(rdns_id => $revid, domain_id => $domid, group_id => $importcfg{group},
548 entry => "[ import ] ".($msg->{isv6} ? 'AAAA' : 'A')." record $host -> $ip".
549 " merged with matching PTR record");
550 } else {
551 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
552 $recsth->execute($domid, 0, $host, 1, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
553 }
554 } else {
555 push @deferred, $rec unless $nodefer;
556 $impok = 0;
557 }
558
559 } elsif ($rec =~ /^Z/) {
560 $cnt{SOA}++;
561
562 my ($zone,$master,$contact,$serial,$refresh,$retry,$expire,$minttl,$ttl,$stamp,$loc) = split /:/, $rec, 11;
563 $zone =~ s/^Z//;
564 $zone =~ s/\.$//;
565 $master =~ s/\.$//;
566 $contact =~ s/\.$//;
567 $ttl = -1 if $ttl eq '';
568 $stamp = '' if !$stamp;
569 $loc = '' if !$loc;
570 $loc = '' if $loc =~ /^:+$/;
571
572 my $stampactive = 'n';
573 my $expires = 'n';
574
575##fixme er... what do we do with an SOA with a timestamp? O_o
576# fail for now, since there's no clean way I can see to handle this (yet)
577# maybe (ab)use the -l flag to import as-is?
578 if ($stamp) {
579 push @deferred, $rec unless $nodefer;
580 return 0;
581 }
582
583##fixme: need more magic on TTL, so we can decide whether to use the minttl or newttl
584# my $newttl;
585# ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'n');
586# $ttl = $newttl if !$ttl;
587
588 if ($zone =~ /\.arpa$/) {
589 ($code,$msg) = DNSDB::_zone2cidr($zone);
590 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,1,?)",
591 undef, ($msg, $importcfg{group}, $loc));
592 my ($rdns) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
593 my $newttl;
594 ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'y');
595 $ttl = $newttl if !$ttl;
596 $recsth->execute(0, $rdns, "$contact:$master", 6, "$refresh:$retry:$expire:$minttl", 0, 0, 0, $ttl,
597 $loc, $stamp, $expires, $stampactive);
598 } else {
599 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,1,?)",
600 undef, ($zone, $importcfg{group}, $loc));
601 my ($domid) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
602 my $newttl;
603 ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'n');
604 $ttl = $newttl if !$ttl;
605 $recsth->execute($domid, 0, "$contact:$master", 6, "$refresh:$retry:$expire:$minttl", 0, 0, 0, $ttl,
606 $loc, $stamp, $expires, $stampactive);
607 }
608
609 } elsif ($rec =~ /^\@/) {
610 $cnt{MX}++;
611
612 my ($zone,$ip,$host,$dist,$ttl,$stamp,$loc) = split /:/, $rec, 7;
613 $zone =~ s/^\@//;
614 $zone =~ s/\.$//;
615 $zone =~ s/^\\052/*/;
616 $host =~ s/\.$//;
617 $host = "$host.mx.$zone" if $host !~ /\./;
618 $ttl = -1 if $ttl eq '';
619 $stamp = '' if !$stamp;
620 $loc = '' if !$loc;
621 $loc = '' if $loc =~ /^:+$/;
622
623 my $stampactive = 'n';
624 my $expires = 'n';
625
626# note we don't check for reverse domains here, because MX records don't make any sense in reverse zones.
627# if this really ever becomes an issue for someone it can be expanded to handle those weirdos
628
629 # allow for subzone MXes, since it's perfectly legitimate to simply stuff it all in a single parent zone
630 my $domid = $dnsdb->_hostparent($zone);
631 if ($domid) {
632 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
633 $recsth->execute($domid, 0, $zone, 15, $host, $dist, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
634 $recsth->execute($domid, 0, $host, 1, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive) if $ip;
635 } else {
636 push @deferred, $rec unless $nodefer;
637 $impok = 0;
638 }
639
640 } elsif ($rec =~ /^'/) {
641 $cnt{TXT}++;
642
643 my ($fqdn, $rdata, $ttl, $stamp, $loc) = split /:/, $rec, 5;
644 $fqdn =~ s/^'//;
645 $fqdn =~ s/^\\052/*/;
646 _deoctal(\$rdata);
647 $ttl = -1 if $ttl eq '';
648 $stamp = '' if !$stamp;
649 $loc = '' if !$loc;
650 $loc = '' if $loc =~ /^:+$/;
651
652 my $stampactive = 'n';
653 my $expires = 'n';
654
655 if ($fqdn =~ /\.arpa$/) {
656 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
657 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
658 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
659 $recsth->execute(0, $rparent, $rdata, 16, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
660 } else {
661 my $domid = $dnsdb->_hostparent($fqdn);
662 if ($domid) {
663 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
664 $recsth->execute($domid, 0, $fqdn, 16, $rdata, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
665 } else {
666 push @deferred, $rec unless $nodefer;
667 $impok = 0;
668 }
669 }
670
671 } elsif ($rec =~ /^\./) {
672 $cnt{NSASOA}++;
673
674 my ($fqdn, $ip, $ns, $ttl, $stamp, $loc) = split /:/, $rec, 6;
675 $fqdn =~ s/^\.//;
676 $fqdn =~ s/\.$//;
677 $ns =~ s/\.$//;
678 $ns = "$ns.ns.$fqdn" if $ns !~ /\./;
679 $ttl = -1 if $ttl eq '';
680 $stamp = '' if !$stamp;
681 $loc = '' if !$loc;
682 $loc = '' if $loc =~ /^:+$/;
683
684 my $stampactive = 'n';
685 my $expires = 'n';
686
687##fixme er... what do we do with an SOA with a timestamp? O_o
688# fail for now, since there's no clean way I can see to handle this (yet)
689# maybe (ab)use the -l flag to import as-is?
690 if ($stamp) {
691 push @deferred, $rec unless $nodefer;
692 return 0;
693 }
694
695##fixme: need more magic on TTL, so we can decide whether to use the minttl or newttl
696# my $newttl;
697# ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'n');
698
699 if ($fqdn =~ /\.arpa$/) {
700 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
701 my ($rdns) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet = ?", undef, ($msg));
702 if (!$rdns) {
703 $errstr = "adding revzone $msg";
704 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,1,1,?)",
705 undef, ($msg, $loc));
706 ($rdns) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
707 my $soattl;
708 ($soattl, $stampactive, $expires, $stamp) = calcstamp($stamp, 2560, 0, 'y');
709# this would probably make a lot more sense to do hostmaster.$config{admindomain}
710# otherwise, it's as per the tinydns defaults that work tolerably well on a small scale
711# serial -> modtime of data file, ref -> 16384, ret -> 2048, exp -> 1048576, min -> 2560
712# the SOA also gets the default 2560 TTL, no matter what was set on the . entry.
713 $recsth->execute(0, $rdns, "hostmaster.$fqdn:$ns", 6, "16384:2048:1048576:2560", 0, 0, 0, $soattl,
714 $loc, $stamp, $expires, $stampactive);
715 }
716 # NS records get the specified TTL from the original . entry
717 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rdns, 'y') if !$stamp;
718 $recsth->execute(0, $rdns, $ns, 2, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
719##fixme: (?) implement full conversion of tinydns . records?
720# -> problem: A record for NS must be added to the appropriate *forward* zone, not the reverse
721#$recsth->execute(0, $rdns, $ns, 1, $ip, 0, 0, 0, $ttl, $stamp, $expires, $stampactive)
722# ... auto-A-record simply does not make sense in reverse zones. Functionally
723# I think it would work, sort of, but it's a nasty mess and anyone hosting reverse
724# zones has names for their nameservers already.
725# Even the auto-nameserver-fqdn comes out... ugly.
726
727 } else {
728 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
729 undef, ($fqdn));
730 if (!$domid) {
731 $errstr = "adding domain $fqdn";
732 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,1,1,?)",
733 undef, ($fqdn, $loc));
734 ($domid) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
735 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, 2560, 0, 'n');
736 $recsth->execute($domid, 0, "hostmaster.$fqdn:$ns", 6, "16384:2048:1048576:2560", 0, 0, 0, "2560",
737 $loc, $stamp, $expires, $stampactive);
738 }
739 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n') if !$stamp;
740 $recsth->execute($domid, 0, $fqdn, 2, $ns, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
741 $recsth->execute($domid, 0, $ns, 1, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive) if $ip;
742 }
743
744
745 } elsif ($rec =~ /^\%/) {
746 $cnt{VIEWS}++;
747
748 # unfortunate that we don't have a guaranteed way to get a description on these. :/
749 my ($loc,$cnet) = split /:/, $rec, 2;
750 $loc =~ s/^\%//;
751 if (my ($iplist) = $dbh->selectrow_array("SELECT iplist FROM locations WHERE location = ?", undef, ($loc))) {
752 if ($cnet) {
753 $iplist .= ", $cnet";
754 $dbh->do("UPDATE locations SET iplist = ? WHERE location = ?", undef, ($iplist, $loc));
755 } else {
756 # hmm. spit out a warning? if we already have entries for $loc, adding a null
757 # entry will almost certainly Do The Wrong Thing(TM)
758 }
759 } else {
760 $cnet = '' if !$cnet; # de-nullify
761 $dbh->do("INSERT INTO locations (location,iplist,description) VALUES (?,?,?)", undef, ($loc, $cnet, $loc));
762 }
763
764 } elsif ($rec =~ /^:/) {
765 $cnt{NCUST}++;
766# Big section. Since tinydns can publish anything you can encode properly, but only provides official
767# recognition and handling for the core common types, this must deal with the leftovers.
768# :fqdn:type:rdata:ttl:time:loc
769
770 my (undef, $fqdn, $type, $rdata, $ttl, $stamp, $loc) = split /:/, $rec, 7;
771 $fqdn =~ s/\.$//;
772 $fqdn =~ s/^\\052/*/;
773 $ttl = -1 if $ttl eq '';
774 $stamp = '' if !$stamp;
775 $loc = '' if !$loc;
776 $loc = '' if $loc =~ /^:+$/;
777
778 my $stampactive = 'n';
779 my $expires = 'n';
780
781 if ($type == 33) {
782 # SRV
783 my ($prio, $weight, $port, $target) = (0,0,0,0);
784
785 my @tmp = _byteparse(\$rdata, 2);
786 $prio = $tmp[0] * 256 + $tmp[1];
787 @tmp = _byteparse(\$rdata, 2);
788 $weight = $tmp[0] * 256 + $tmp[1];
789 @tmp = _byteparse(\$rdata, 2);
790 $port = $tmp[0] * 256 + $tmp[1];
791
792 $rdata =~ s/\\\d{3}/./g;
793 ($target) = ($rdata =~ /^\.(.+)\.$/);
794# hmm. the above *should* work, but What If(TM) we have ASCII-range bytes
795# representing the target's fqdn part length(s)? axfr-get doesn't seem to,
796# probably because dec. 33->63 includes most punctuation and all the numbers
797# while ($rdata =~ /(\\\d{3})/) {
798# my $cnt = $1;
799# $rdata =~ s/^$cnt//;
800# $cnt =~ s/^\\/0/;
801# $cnt = oct($cnt);
802# my ($seg) = ($rdata =~ /^(.{$cnt})/);
803# $target .=
804# }
805
806 my $domid = $dnsdb->_hostparent($fqdn);
807 if ($domid) {
808 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
809 $recsth->execute($domid, 0, $fqdn, 33, $target, $prio, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive) if $domid;
810 } else {
811 push @deferred, $rec unless $nodefer;
812 $impok = 0;
813 }
814
815 } elsif ($type == 28) {
816 # AAAA
817 my @v6;
818
819 for (my $i=0; $i < 8; $i++) {
820 my @tmp = _byteparse(\$rdata, 2);
821 push @v6, sprintf("%0.4x", $tmp[0] * 256 + $tmp[1]);
822 }
823 my $val = NetAddr::IP->new(join(':', @v6));
824
825 my $fparent = $dnsdb->_hostparent($fqdn);
826
827##fixme: really want to pull this DB call inside an if $importcfg{merge},
828# but then we need to duplicate the insert for the case where the matching
829# reverse doesn't exist.
830 $revcheck->execute($fqdn, $val);
831 my ($revid, $recid, $rttl) = $revcheck->fetchrow_array;
832
833 # If we have a revzone and merging is enabled, update the existing
834 # record with a reverse ID, set the type to one of the internal
835 # pseudotypes, and set the TTL to the lower of the two.
836 if ($importcfg{merge} && $revid) {
837 $ttl = ($rttl < $ttl ? $rttl : $ttl); # Take the shorter TTL
838 $mergefwd->execute(65281, $fparent, $ttl, $recid);
839 $dnsdb->_log(rdns_id => $revid, domain_id => $fparent, group_id => $importcfg{group},
840 entry => "[ import ] ".($msg->{isv6} ? 'AAAA' : 'A')." record $fqdn -> $val".
841 " merged with matching PTR record");
842 } else {
843 if ($fparent) {
844 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
845 $recsth->execute($fparent, 0, $fqdn, 28, $val->addr, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
846 } else {
847 push @deferred, $rec unless $nodefer;
848 $impok = 0;
849 }
850 }
851
852 } elsif ($type == 16) {
853 # TXT
854 my $txtstring = _rdata2string($rdata);
855
856 if ($fqdn =~ /\.arpa$/) {
857 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
858 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
859 if ($rparent) {
860 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
861 $recsth->execute(0, $rparent, $txtstring, 16, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
862 } else {
863 push @deferred, $rec unless $nodefer;
864 $impok = 0;
865 }
866 } else {
867 my $domid = $dnsdb->_hostparent($fqdn);
868 if ($domid) {
869 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
870 $recsth->execute($domid, 0, $fqdn, 16, $txtstring, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
871 } else {
872 push @deferred, $rec unless $nodefer;
873 $impok = 0;
874 }
875 }
876
877 } elsif ($type == 17) {
878 # RP
879 my ($email, $txtrec) = split /\\000/, $rdata;
880 $email =~ s/\\\d{3}/./g;
881 $email =~ s/^\.//;
882 $txtrec =~ s/\\\d{3}/./g;
883 $txtrec =~ s/^\.//;
884
885 # these might actually make sense in a reverse zone... sort of.
886 if ($fqdn =~ /\.arpa$/) {
887 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
888 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
889 if ($rparent) {
890 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
891 $recsth->execute(0, $rparent, "$email $txtrec", 17, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive );
892 } else {
893 push @deferred, $rec unless $nodefer;
894 $impok = 0;
895 }
896 } else {
897 my $domid = $dnsdb->_hostparent($fqdn);
898 if ($domid) {
899 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
900 $recsth->execute($domid, 0, $fqdn, 17, "$email $txtrec", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
901 } else {
902 push @deferred, $rec unless $nodefer;
903 $impok = 0;
904 }
905 }
906
907 } elsif ($type == 44) {
908 # SSHFP
909 my $sshfp = _byteparse(\$rdata, 1);
910 $sshfp .= " "._byteparse(\$rdata, 1);
911 $sshfp .= " "._rdata2hex($rdata);
912
913 # these do not make sense in a reverse zone, since they're logically attached to an A record
914 my $domid = $dnsdb->_hostparent($fqdn);
915 if ($domid) {
916 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
917 $recsth->execute($domid, 0, $fqdn, 44, $sshfp, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
918 } else {
919 push @deferred, $rec unless $nodefer;
920 $impok = 0;
921 }
922
923 } else {
924 print "unhandled rec $rec\n";
925 $impok = 0;
926 # ... uhhh, dunno
927 }
928
929 } else {
930 $cnt{other}++;
931 print " $_\n";
932 }
933
934 return $impok; # just to make sure
935 } # recslurp()
936
937 close FLAT;
938}
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