source: trunk/tiny-import.pl@ 764

Last change on this file since 764 was 745, checked in by Kris Deugau, 8 years ago

/trunk

Finally review and refresh copyright years again
  • Property svn:executable set to *
  • Property svn:keywords set to Date Rev Author Id
File size: 32.5 KB
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1#!/usr/bin/perl
2# dnsadmin shell-based import tool for tinydns flatfiles
3##
4# $Id: tiny-import.pl 745 2016-11-02 00:43:41Z 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$dnsdb->{loguserid} = 0; # not worth setting up a pseudouser the way the RPC system does
121$dnsdb->{logusername} = $dnsdb->{logusername}."/tiny-import.pl";
122$dnsdb->{logfullname} = $dnsdb->{logusername} if !$dnsdb->{logfullname};
123
124$dbh->{AutoCommit} = 0;
125$dbh->{RaiseError} = 1;
126
127my %cnt;
128my @deferred;
129my $converted = 0;
130my $errstr = '';
131
132foreach my $file (@ARGV) {
133 eval {
134 import(file => $file);
135# import(file => $file, nosoa => 1);
136 $dbh->rollback if $importcfg{trial};
137 $dbh->commit unless $importcfg{trial};
138 };
139 if ($@) {
140 print "Failure trying to import $file: $@\n $errstr\n";
141 unlink ".$file.$$" if $importcfg{rw}; # cleanup
142 $dbh->rollback;
143 }
144}
145
146# print summary count of record types encountered
147foreach (keys %cnt) {
148 print " $_ $cnt{$_}\n";
149}
150
151exit 0;
152
153sub import {
154 our %args = @_;
155 my $flatfile = $args{file};
156 my @fpath = split '/', $flatfile;
157 $fpath[$#fpath] = ".$fpath[$#fpath]";
158 my $rwfile = join('/', @fpath);#.".$$";
159
160 open FLAT, "<$flatfile";
161
162 if ($importcfg{rw}) {
163 open RWFLAT, ">$rwfile" or die "Couldn't open tempfile $rwfile for rewriting: $!\n";
164 print RWFLAT "# WARNING: Records in this file have been imported to the web UI.\n#\n";
165 }
166
167 our $recsth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl,location,stamp,expires,stampactive) ".
168 " VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)");
169
170 # for A/AAAA records
171 our $revcheck = $dbh->prepare("SELECT rdns_id,record_id,ttl FROM records WHERE host=? AND val=? AND type=12");
172 our $mergefwd = $dbh->prepare("UPDATE records SET type=?,domain_id=?,ttl=? WHERE record_id=?");
173 # for PTR records
174 our $fwdcheck = $dbh->prepare("SELECT domain_id,record_id,ttl FROM records WHERE host=? AND val=? AND (type=1 OR type=28)");
175 our $mergerev = $dbh->prepare("UPDATE records SET type=?,rdns_id=?,ttl=? WHERE record_id=?");
176
177 my %deleg;
178
179 my $ok = 0;
180 while (<FLAT>) {
181 if (/^#/ || /^\s*$/) {
182 print RWFLAT "#$_" if $importcfg{rw};
183 next;
184 }
185 chomp;
186 s/\s*$//;
187 my $recstat = recslurp($_);
188 $ok++ if $recstat;
189 if ($importcfg{rw}) {
190 if ($recstat) {
191 print RWFLAT "#$_\n";
192 } else {
193 print RWFLAT "$_\n";
194 }
195 }
196 }
197
198 # Move the rewritten flatfile in place of the original, so that any
199 # external export processing will pick up any remaining records.
200 if ($importcfg{rw}) {
201 close RWFLAT;
202 rename "$rwfile", $flatfile;
203 }
204
205 # Show the failed records
206 foreach (@deferred) {
207 print "failed to import $_\n";
208 }
209
210##fixme: hmm. can't write the record back to the flatfile in the
211# main while above, then come down here and import it anyway, can we?
212# # Try the deferred records again, once.
213# foreach (@deferred) {
214# print "trying $_ again\n";
215# recslurp($_, 1);
216# }
217
218 # .. but we can at least say how many records weren't imported.
219 print "$ok OK, ".scalar(@deferred)." deferred, $converted downconverted records in $flatfile\n";
220 undef @deferred;
221 $converted = 0;
222
223 # Sub for various nonstandard types with lots of pure bytes expressed in octal
224 # Takes a tinydns rdata string and count, returns a list of $count bytes as well
225 # as trimming those logical bytes off the front of the rdata string.
226 sub _byteparse {
227 my $src = shift;
228 my $count = shift;
229 my @ret;
230 for (my $i = 0; $i < $count; $i++) {
231 if ($$src =~ /^\\/) {
232 # we should have an octal bit
233 my ($tmp) = ($$src =~ /^(\\\d{3})/);
234 $tmp =~ s/\\/0/;
235 push @ret, oct($tmp);
236 $$src =~ s/^\\\d{3}//;
237 } else {
238 # we seem to have a byte expressed as an ASCII character
239 my ($tmp) = ($$src =~ /^(.)/);
240 push @ret, ord($tmp);
241 $$src =~ s/^.//;
242 }
243 }
244 return @ret;
245 }
246
247 # Convert octal-coded bytes back to something resembling normal characters, general case
248 sub _deoctal {
249 my $targ = shift;
250 while ($$targ =~ /\\(\d{3})/) {
251 my $sub = chr(oct($1));
252 $$targ =~ s/\\$1/$sub/g;
253 }
254 }
255
256 sub _rdata2string {
257 my $rdata = shift;
258 my $tmpout = '';
259 while ($rdata) {
260 my $bytecount = 0;
261 if ($rdata =~ /^\\/) {
262 ($bytecount) = ($rdata =~ /^(\\\d{3})/);
263 $bytecount =~ s/\\/0/;
264 $bytecount = oct($bytecount);
265 $rdata =~ s/^\\\d{3}//;
266 } else {
267 ($bytecount) = ($rdata =~ /^(.)/);
268 $bytecount = ord($bytecount);
269 $rdata =~ s/^.//;
270 }
271 my @tmp = _byteparse(\$rdata, $bytecount);
272 foreach (@tmp) { $tmpout .= chr($_); }
273##fixme: warn or fail on long (>256? >512? >321?) strings
274 }
275 return $tmpout;
276 }
277
278 sub _rdata2hex {
279 my $rdata = shift;
280 my $tmpout = '';
281 while ($rdata) {
282 my $byte = '';
283 if ($rdata =~ /^\\/) {
284 ($byte) = ($rdata =~ /^(\\\d{3})/);
285 $byte =~ s/\\/0/;
286 $tmpout .= sprintf("%0.2x", oct($byte));
287 $rdata =~ s/^\\\d{3}//;
288 } else {
289 ($byte) = ($rdata =~ /^(.)/);
290 $tmpout .= sprintf("%0.2x", ord($byte));
291 $rdata =~ s/^.//;
292 }
293 }
294 return $tmpout;
295 }
296
297 sub calcstamp {
298 my $stampin = shift;
299 my $ttl = shift;
300 my $pzone = shift;
301 my $revrec = shift;
302
303 return ($ttl, 'n', 'n', '1970-01-01 00:00:00 -0') if !$stampin;
304
305##fixme Yes, this fails for records in 2038 sometime. No, I'm not going to care for a while.
306 $stampin = "\@$stampin"; # Time::TAI64 needs the leading @. Feh.
307 my $u = tai2unix($stampin);
308 $stampin = strftime("%Y-%m-%d %H:%M:%S %z", localtime($u));
309 my $expires = 'n';
310 if ($ttl) {
311 # TTL can stay put.
312 } else {
313 # TTL on import is 0, almost certainly wrong. Get the parent zone's SOA and use the minttl.
314 my $soa = $dnsdb->getSOA('n', $revrec, $pzone);
315 $ttl = $soa->{minttl};
316 $expires = 'y';
317 }
318 return ($ttl, 'y', $expires, $stampin);
319 }
320
321 sub recslurp {
322 my $rec = shift;
323 my $nodefer = shift || 0;
324 my $impok = 1;
325 my $msg;
326
327 $errstr = $rec; # this way at least we have some idea what went <splat>
328
329 if ($rec =~ /^=/) {
330 $cnt{APTR}++;
331
332##fixme: do checks like this for all types
333 if ($rec !~ /^=(?:\*|\\052)?[a-z0-9\._-]+:[\d\.]+:\d*/i) {
334 print "bad A+PTR $rec\n";
335 return;
336 }
337 my ($host,$ip,$ttl,$stamp,$loc) = split /:/, $rec, 5;
338 $host =~ s/^=//;
339 $host =~ s/\.$//;
340 $ttl = -1 if $ttl eq '';
341 $stamp = '' if !$stamp;
342 $loc = '' if !$loc;
343 $loc = '' if $loc =~ /^:+$/;
344 my $fparent = $dnsdb->_hostparent($host);
345 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($ip));
346
347 my $stampactive = 'n';
348 my $expires = 'n';
349
350 # can't set a timestamp on an orphaned record. we'll actually fail import of this record a little later.
351 if ($fparent || $rparent) {
352 if ($fparent) {
353 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
354 } else {
355 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
356 }
357 }
358
359 if ($fparent && $rparent) {
360 $recsth->execute($fparent, $rparent, $host, 65280, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
361 } else {
362 if ($importcfg{legacy}) {
363 # Just import it already! Record may still be subject to downconversion on editing.
364 $fparent = 0 if !$fparent;
365 $rparent = 0 if !$rparent;
366 if ($fparent || $rparent) {
367 $recsth->execute($fparent, $rparent, $host, 65280, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
368 } else {
369 # No parents found, cowardly refusing to add a dangling record
370 push @deferred, $rec unless $nodefer;
371 $impok = 0;
372 }
373 } elsif ($importcfg{conv}) {
374 # downconvert A+PTR if forward zone is not found
375 $recsth->execute(0, $rparent, $host, 12, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
376 $converted++;
377 } else {
378 push @deferred, $rec unless $nodefer;
379 $impok = 0;
380 # print "$tmporig deferred; can't find both forward and reverse zone parents\n";
381 }
382 }
383
384 } elsif ($rec =~ /^C/) {
385 $cnt{CNAME}++;
386
387 my ($host,$targ,$ttl,$stamp,$loc) = split /:/, $rec, 5;
388 $host =~ s/^C//;
389 $host =~ s/\.$//;
390 $host =~ s/^\\052/*/;
391 $ttl = -1 if $ttl eq '';
392 $stamp = '' if !$stamp;
393 $loc = '' if !$loc;
394 $loc = '' if $loc =~ /^:+$/;
395
396 my $stampactive = 'n';
397 my $expires = 'n';
398
399 if ($host =~ /\.arpa$/) {
400 ($code,$msg) = DNSDB::_zone2cidr($host);
401 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
402 if ($rparent) {
403 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
404 $recsth->execute(0, $rparent, $targ, 5, $msg->addr, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
405 } else {
406 push @deferred, $rec unless $nodefer;
407 $impok = 0;
408 # print "$tmporig deferred; can't find parent zone\n";
409 }
410
411##fixme: automagically convert manually maintained sub-/24 delegations
412# my ($subip, $zone) = split /\./, $targ, 2;
413# ($code, $msg) = DNSDB::_zone2cidr($zone);
414# push @{$deleg{"$msg"}{iplist}}, $subip;
415#print "$msg $subip\n";
416
417 } else {
418 my $fparent = $dnsdb->_hostparent($host);
419 if ($fparent) {
420 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
421 $recsth->execute($fparent, 0, $host, 5, $targ, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
422 } else {
423 push @deferred, $rec unless $nodefer;
424 $impok = 0;
425 # print "$tmporig deferred; can't find parent zone\n";
426 }
427 }
428
429 } elsif ($rec =~ /^\&/) {
430 $cnt{NS}++;
431
432 my ($zone,$ip,$ns,$ttl,$stamp,$loc) = split /:/, $rec, 6;
433 $zone =~ s/^\&//;
434 $zone =~ s/\.$//;
435 $ns =~ s/\.$//;
436 $ns = "$ns.ns.$zone" if $ns !~ /\./;
437 $ttl = -1 if $ttl eq '';
438 $stamp = '' if !$stamp;
439 $loc = '' if !$loc;
440 $loc = '' if $loc =~ /^:+$/;
441
442 my $stampactive = 'n';
443 my $expires = 'n';
444
445 if ($zone =~ /\.arpa$/) {
446 ($code,$msg) = DNSDB::_zone2cidr($zone);
447 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?", undef, ("$msg"));
448##fixme, in concert with the CNAME check for same; automagically
449# create "delegate" record instead for subzone NSes: convert above to use = instead of >>=
450# ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ("$msg"))
451# if !$rparent;
452 if ($rparent) {
453 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
454 $recsth->execute(0, $rparent, $ns, 2, $msg, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
455 } else {
456 push @deferred, $rec unless $nodefer;
457 $impok = 0;
458 }
459 } else {
460 my $fparent = $dnsdb->_hostparent($zone);
461 if ($fparent) {
462 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
463 $recsth->execute($fparent, 0, $zone, 2, $ns, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
464 $recsth->execute($fparent, 0, $ns, 2, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive) if $ip;
465 } else {
466 push @deferred, $rec unless $nodefer;
467 $impok = 0;
468 }
469 }
470
471 } elsif ($rec =~ /^\^/) {
472 $cnt{PTR}++;
473
474 my ($rip,$host,$ttl,$stamp,$loc) = split /:/, $rec, 5;
475 $rip =~ s/^\^//;
476 $rip =~ s/\.$//;
477 $ttl = -1 if $ttl eq '';
478 $stamp = '' if !$stamp;
479 $loc = '' if !$loc;
480 $loc = '' if $loc =~ /^:+$/;
481
482 my $stampactive = 'n';
483 my $expires = 'n';
484
485 my $rparent;
486 if (my ($i, $z) = ($rip =~ /^(\d+)\.(\d+-(?:\d+\.){4}in-addr.arpa)$/) ) {
487 ($code,$msg) = DNSDB::_zone2cidr($z);
488 # Exact matches only, because we're in a sub-/24 delegation
489##fixme: flag the type of delegation (range, subnet-with-dash, subnet-with-slash)
490# somewhere so we can recover it on export. probably best to do that in the revzone data.
491 ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet = ?", undef, ("$msg"));
492 $z =~ s/^[\d-]+//;
493 ($code,$msg) = DNSDB::_zone2cidr("$i.$z"); # Get the actual IP and normalize
494 } else {
495 ($code,$msg) = DNSDB::_zone2cidr($rip);
496 ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ("$msg"));
497 }
498
499 if ($rparent) {
500##fixme: really want to pull this DB call inside an if $importcfg{merge},
501# but then we need to duplicate the insert for the case where the matching
502# reverse doesn't exist.
503 $host =~ s/\.$//g; # pure sytactic sugar, we don't store this trailing dot.
504 $fwdcheck->execute($host, $msg->addr);
505 my ($domid, $recid, $rttl) = $fwdcheck->fetchrow_array;
506 if ($importcfg{merge} && $domid) {
507 $ttl = ($rttl < $ttl ? $rttl : $ttl); # Take the shorter TTL
508 $mergerev->execute(($msg->{isv6} ? 65281 : 65280), $rparent, $ttl, $recid);
509 $dnsdb->_log(rdns_id => $rparent, domain_id => $domid, group_id => $importcfg{group},
510 entry => "[ import ] PTR ".$msg->addr." -> $host merged with matching ".
511 ($msg->{isv6} ? 'AAAA' : 'A')." record");
512 } else {
513 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
514 $recsth->execute(0, $rparent, $host, 12, $msg->addr, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
515 }
516 } else {
517 push @deferred, $rec unless $nodefer;
518 $impok = 0;
519 }
520
521 } elsif ($rec =~ /^\+/) {
522 $cnt{A}++;
523
524 my ($host,$ip,$ttl,$stamp,$loc) = split /:/, $rec, 5;
525 $host =~ s/^\+//;
526 $host =~ s/\.$//;
527 $host =~ s/^\\052/*/;
528 $ttl = -1 if $ttl eq '';
529 $stamp = '' if !$stamp;
530 $loc = '' if !$loc;
531 $loc = '' if $loc =~ /^:+$/;
532
533 my $stampactive = 'n';
534 my $expires = 'n';
535
536 my $domid = $dnsdb->_hostparent($host);
537 if ($domid) {
538##fixme: really want to pull this DB call inside an if $importcfg{merge},
539# but then we need to duplicate the insert for the case where the matching
540# reverse doesn't exist.
541 $revcheck->execute($host, $ip);
542 my ($revid, $recid, $rttl) = $revcheck->fetchrow_array;
543 if ($importcfg{merge} && $revid) {
544 $ttl = ($rttl < $ttl ? $rttl : $ttl); # Take the shorter TTL
545 $mergefwd->execute(65280, $domid, $ttl, $recid);
546 $dnsdb->_log(rdns_id => $revid, domain_id => $domid, group_id => $importcfg{group},
547 entry => "[ import ] ".($msg->{isv6} ? 'AAAA' : 'A')." record $host -> $ip".
548 " merged with matching PTR record");
549 } else {
550 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
551 $recsth->execute($domid, 0, $host, 1, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
552 }
553 } else {
554 push @deferred, $rec unless $nodefer;
555 $impok = 0;
556 }
557
558 } elsif ($rec =~ /^Z/) {
559 $cnt{SOA}++;
560
561 my ($zone,$master,$contact,$serial,$refresh,$retry,$expire,$minttl,$ttl,$stamp,$loc) = split /:/, $rec, 11;
562 $zone =~ s/^Z//;
563 $zone =~ s/\.$//;
564 $master =~ s/\.$//;
565 $contact =~ s/\.$//;
566 $ttl = -1 if $ttl eq '';
567 $stamp = '' if !$stamp;
568 $loc = '' if !$loc;
569 $loc = '' if $loc =~ /^:+$/;
570
571 my $stampactive = 'n';
572 my $expires = 'n';
573
574##fixme er... what do we do with an SOA with a timestamp? O_o
575# fail for now, since there's no clean way I can see to handle this (yet)
576# maybe (ab)use the -l flag to import as-is?
577 if ($stamp) {
578 push @deferred, $rec unless $nodefer;
579 return 0;
580 }
581
582##fixme: need more magic on TTL, so we can decide whether to use the minttl or newttl
583# my $newttl;
584# ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'n');
585# $ttl = $newttl if !$ttl;
586
587 if ($zone =~ /\.arpa$/) {
588 ($code,$msg) = DNSDB::_zone2cidr($zone);
589 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,1,?)",
590 undef, ($msg, $importcfg{group}, $loc));
591 my ($rdns) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
592 my $newttl;
593 ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'y');
594 $ttl = $newttl if !$ttl;
595 $recsth->execute(0, $rdns, "$contact:$master", 6, "$refresh:$retry:$expire:$minttl", 0, 0, 0, $ttl,
596 $loc, $stamp, $expires, $stampactive);
597 } else {
598 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,1,?)",
599 undef, ($zone, $importcfg{group}, $loc));
600 my ($domid) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
601 my $newttl;
602 ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'n');
603 $ttl = $newttl if !$ttl;
604 $recsth->execute($domid, 0, "$contact:$master", 6, "$refresh:$retry:$expire:$minttl", 0, 0, 0, $ttl,
605 $loc, $stamp, $expires, $stampactive);
606 }
607
608 } elsif ($rec =~ /^\@/) {
609 $cnt{MX}++;
610
611 my ($zone,$ip,$host,$dist,$ttl,$stamp,$loc) = split /:/, $rec, 7;
612 $zone =~ s/^\@//;
613 $zone =~ s/\.$//;
614 $zone =~ s/^\\052/*/;
615 $host =~ s/\.$//;
616 $host = "$host.mx.$zone" if $host !~ /\./;
617 $ttl = -1 if $ttl eq '';
618 $stamp = '' if !$stamp;
619 $loc = '' if !$loc;
620 $loc = '' if $loc =~ /^:+$/;
621
622 my $stampactive = 'n';
623 my $expires = 'n';
624
625# note we don't check for reverse domains here, because MX records don't make any sense in reverse zones.
626# if this really ever becomes an issue for someone it can be expanded to handle those weirdos
627
628 # allow for subzone MXes, since it's perfectly legitimate to simply stuff it all in a single parent zone
629 my $domid = $dnsdb->_hostparent($zone);
630 if ($domid) {
631 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
632 $recsth->execute($domid, 0, $zone, 15, $host, $dist, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
633 $recsth->execute($domid, 0, $host, 1, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive) if $ip;
634 } else {
635 push @deferred, $rec unless $nodefer;
636 $impok = 0;
637 }
638
639 } elsif ($rec =~ /^'/) {
640 $cnt{TXT}++;
641
642 my ($fqdn, $rdata, $ttl, $stamp, $loc) = split /:/, $rec, 5;
643 $fqdn =~ s/^'//;
644 $fqdn =~ s/^\\052/*/;
645 _deoctal(\$rdata);
646 $ttl = -1 if $ttl eq '';
647 $stamp = '' if !$stamp;
648 $loc = '' if !$loc;
649 $loc = '' if $loc =~ /^:+$/;
650
651 my $stampactive = 'n';
652 my $expires = 'n';
653
654 if ($fqdn =~ /\.arpa$/) {
655 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
656 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
657 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
658 $recsth->execute(0, $rparent, $rdata, 16, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
659 } else {
660 my $domid = $dnsdb->_hostparent($fqdn);
661 if ($domid) {
662 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
663 $recsth->execute($domid, 0, $fqdn, 16, $rdata, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
664 } else {
665 push @deferred, $rec unless $nodefer;
666 $impok = 0;
667 }
668 }
669
670 } elsif ($rec =~ /^\./) {
671 $cnt{NSASOA}++;
672
673 my ($fqdn, $ip, $ns, $ttl, $stamp, $loc) = split /:/, $rec, 6;
674 $fqdn =~ s/^\.//;
675 $fqdn =~ s/\.$//;
676 $ns =~ s/\.$//;
677 $ns = "$ns.ns.$fqdn" if $ns !~ /\./;
678 $ttl = -1 if $ttl eq '';
679 $stamp = '' if !$stamp;
680 $loc = '' if !$loc;
681 $loc = '' if $loc =~ /^:+$/;
682
683 my $stampactive = 'n';
684 my $expires = 'n';
685
686##fixme er... what do we do with an SOA with a timestamp? O_o
687# fail for now, since there's no clean way I can see to handle this (yet)
688# maybe (ab)use the -l flag to import as-is?
689 if ($stamp) {
690 push @deferred, $rec unless $nodefer;
691 return 0;
692 }
693
694##fixme: need more magic on TTL, so we can decide whether to use the minttl or newttl
695# my $newttl;
696# ($newttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $minttl, 0, 'n');
697
698 if ($fqdn =~ /\.arpa$/) {
699 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
700 my ($rdns) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet = ?", undef, ($msg));
701 if (!$rdns) {
702 $errstr = "adding revzone $msg";
703 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,1,1,?)",
704 undef, ($msg, $loc));
705 ($rdns) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
706 my $soattl;
707 ($soattl, $stampactive, $expires, $stamp) = calcstamp($stamp, 2560, 0, 'y');
708# this would probably make a lot more sense to do hostmaster.$config{admindomain}
709# otherwise, it's as per the tinydns defaults that work tolerably well on a small scale
710# serial -> modtime of data file, ref -> 16384, ret -> 2048, exp -> 1048576, min -> 2560
711# the SOA also gets the default 2560 TTL, no matter what was set on the . entry.
712 $recsth->execute(0, $rdns, "hostmaster.$fqdn:$ns", 6, "16384:2048:1048576:2560", 0, 0, 0, $soattl,
713 $loc, $stamp, $expires, $stampactive);
714 }
715 # NS records get the specified TTL from the original . entry
716 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rdns, 'y') if !$stamp;
717 $recsth->execute(0, $rdns, $ns, 2, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
718##fixme: (?) implement full conversion of tinydns . records?
719# -> problem: A record for NS must be added to the appropriate *forward* zone, not the reverse
720#$recsth->execute(0, $rdns, $ns, 1, $ip, 0, 0, 0, $ttl, $stamp, $expires, $stampactive)
721# ... auto-A-record simply does not make sense in reverse zones. Functionally
722# I think it would work, sort of, but it's a nasty mess and anyone hosting reverse
723# zones has names for their nameservers already.
724# Even the auto-nameserver-fqdn comes out... ugly.
725
726 } else {
727 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
728 undef, ($fqdn));
729 if (!$domid) {
730 $errstr = "adding domain $fqdn";
731 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,1,1,?)",
732 undef, ($fqdn, $loc));
733 ($domid) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
734 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, 2560, 0, 'n');
735 $recsth->execute($domid, 0, "hostmaster.$fqdn:$ns", 6, "16384:2048:1048576:2560", 0, 0, 0, "2560",
736 $loc, $stamp, $expires, $stampactive);
737 }
738 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n') if !$stamp;
739 $recsth->execute($domid, 0, $fqdn, 2, $ns, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
740 $recsth->execute($domid, 0, $ns, 1, $ip, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive) if $ip;
741 }
742
743
744 } elsif ($rec =~ /^\%/) {
745 $cnt{VIEWS}++;
746
747 # unfortunate that we don't have a guaranteed way to get a description on these. :/
748 my ($loc,$cnet) = split /:/, $rec, 2;
749 $loc =~ s/^\%//;
750 if (my ($iplist) = $dbh->selectrow_array("SELECT iplist FROM locations WHERE location = ?", undef, ($loc))) {
751 if ($cnet) {
752 $iplist .= ", $cnet";
753 $dbh->do("UPDATE locations SET iplist = ? WHERE location = ?", undef, ($iplist, $loc));
754 } else {
755 # hmm. spit out a warning? if we already have entries for $loc, adding a null
756 # entry will almost certainly Do The Wrong Thing(TM)
757 }
758 } else {
759 $cnet = '' if !$cnet; # de-nullify
760 $dbh->do("INSERT INTO locations (location,iplist,description) VALUES (?,?,?)", undef, ($loc, $cnet, $loc));
761 }
762
763 } elsif ($rec =~ /^:/) {
764 $cnt{NCUST}++;
765# Big section. Since tinydns can publish anything you can encode properly, but only provides official
766# recognition and handling for the core common types, this must deal with the leftovers.
767# :fqdn:type:rdata:ttl:time:loc
768
769 my (undef, $fqdn, $type, $rdata, $ttl, $stamp, $loc) = split /:/, $rec, 7;
770 $fqdn =~ s/\.$//;
771 $fqdn =~ s/^\\052/*/;
772 $ttl = -1 if $ttl eq '';
773 $stamp = '' if !$stamp;
774 $loc = '' if !$loc;
775 $loc = '' if $loc =~ /^:+$/;
776
777 my $stampactive = 'n';
778 my $expires = 'n';
779
780 if ($type == 33) {
781 # SRV
782 my ($prio, $weight, $port, $target) = (0,0,0,0);
783
784 my @tmp = _byteparse(\$rdata, 2);
785 $prio = $tmp[0] * 256 + $tmp[1];
786 @tmp = _byteparse(\$rdata, 2);
787 $weight = $tmp[0] * 256 + $tmp[1];
788 @tmp = _byteparse(\$rdata, 2);
789 $port = $tmp[0] * 256 + $tmp[1];
790
791 $rdata =~ s/\\\d{3}/./g;
792 ($target) = ($rdata =~ /^\.(.+)\.$/);
793# hmm. the above *should* work, but What If(TM) we have ASCII-range bytes
794# representing the target's fqdn part length(s)? axfr-get doesn't seem to,
795# probably because dec. 33->63 includes most punctuation and all the numbers
796# while ($rdata =~ /(\\\d{3})/) {
797# my $cnt = $1;
798# $rdata =~ s/^$cnt//;
799# $cnt =~ s/^\\/0/;
800# $cnt = oct($cnt);
801# my ($seg) = ($rdata =~ /^(.{$cnt})/);
802# $target .=
803# }
804
805 my $domid = $dnsdb->_hostparent($fqdn);
806 if ($domid) {
807 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
808 $recsth->execute($domid, 0, $fqdn, 33, $target, $prio, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive) if $domid;
809 } else {
810 push @deferred, $rec unless $nodefer;
811 $impok = 0;
812 }
813
814 } elsif ($type == 28) {
815 # AAAA
816 my @v6;
817
818 for (my $i=0; $i < 8; $i++) {
819 my @tmp = _byteparse(\$rdata, 2);
820 push @v6, sprintf("%0.4x", $tmp[0] * 256 + $tmp[1]);
821 }
822 my $val = NetAddr::IP->new(join(':', @v6));
823
824 my $fparent = $dnsdb->_hostparent($fqdn);
825
826##fixme: really want to pull this DB call inside an if $importcfg{merge},
827# but then we need to duplicate the insert for the case where the matching
828# reverse doesn't exist.
829 $revcheck->execute($fqdn, $val);
830 my ($revid, $recid, $rttl) = $revcheck->fetchrow_array;
831
832 # If we have a revzone and merging is enabled, update the existing
833 # record with a reverse ID, set the type to one of the internal
834 # pseudotypes, and set the TTL to the lower of the two.
835 if ($importcfg{merge} && $revid) {
836 $ttl = ($rttl < $ttl ? $rttl : $ttl); # Take the shorter TTL
837 $mergefwd->execute(65281, $fparent, $ttl, $recid);
838 $dnsdb->_log(rdns_id => $revid, domain_id => $fparent, group_id => $importcfg{group},
839 entry => "[ import ] ".($msg->{isv6} ? 'AAAA' : 'A')." record $fqdn -> $val".
840 " merged with matching PTR record");
841 } else {
842 if ($fparent) {
843 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $fparent, 'n');
844 $recsth->execute($fparent, 0, $fqdn, 28, $val->addr, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
845 } else {
846 push @deferred, $rec unless $nodefer;
847 $impok = 0;
848 }
849 }
850
851 } elsif ($type == 16) {
852 # TXT
853 my $txtstring = _rdata2string($rdata);
854
855 if ($fqdn =~ /\.arpa$/) {
856 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
857 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
858 if ($rparent) {
859 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
860 $recsth->execute(0, $rparent, $txtstring, 16, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
861 } else {
862 push @deferred, $rec unless $nodefer;
863 $impok = 0;
864 }
865 } else {
866 my $domid = $dnsdb->_hostparent($fqdn);
867 if ($domid) {
868 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
869 $recsth->execute($domid, 0, $fqdn, 16, $txtstring, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
870 } else {
871 push @deferred, $rec unless $nodefer;
872 $impok = 0;
873 }
874 }
875
876 } elsif ($type == 17) {
877 # RP
878 my ($email, $txtrec) = split /\\000/, $rdata;
879 $email =~ s/\\\d{3}/./g;
880 $email =~ s/^\.//;
881 $txtrec =~ s/\\\d{3}/./g;
882 $txtrec =~ s/^\.//;
883
884 # these might actually make sense in a reverse zone... sort of.
885 if ($fqdn =~ /\.arpa$/) {
886 ($code,$msg) = DNSDB::_zone2cidr($fqdn);
887 my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
888 if ($rparent) {
889 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $rparent, 'y');
890 $recsth->execute(0, $rparent, "$email $txtrec", 17, "$msg", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive );
891 } else {
892 push @deferred, $rec unless $nodefer;
893 $impok = 0;
894 }
895 } else {
896 my $domid = $dnsdb->_hostparent($fqdn);
897 if ($domid) {
898 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
899 $recsth->execute($domid, 0, $fqdn, 17, "$email $txtrec", 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
900 } else {
901 push @deferred, $rec unless $nodefer;
902 $impok = 0;
903 }
904 }
905
906 } elsif ($type == 44) {
907 # SSHFP
908 my $sshfp = _byteparse(\$rdata, 1);
909 $sshfp .= " "._byteparse(\$rdata, 1);
910 $sshfp .= " "._rdata2hex($rdata);
911
912 # these do not make sense in a reverse zone, since they're logically attached to an A record
913 my $domid = $dnsdb->_hostparent($fqdn);
914 if ($domid) {
915 ($ttl, $stampactive, $expires, $stamp) = calcstamp($stamp, $ttl, $domid, 'n');
916 $recsth->execute($domid, 0, $fqdn, 44, $sshfp, 0, 0, 0, $ttl, $loc, $stamp, $expires, $stampactive);
917 } else {
918 push @deferred, $rec unless $nodefer;
919 $impok = 0;
920 }
921
922 } else {
923 print "unhandled rec $rec\n";
924 $impok = 0;
925 # ... uhhh, dunno
926 }
927
928 } else {
929 $cnt{other}++;
930 print " $_\n";
931 }
932
933 return $impok; # just to make sure
934 } # recslurp()
935
936 close FLAT;
937}
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