source: trunk/DNSDB.pm@ 610

Last change on this file since 610 was 610, checked in by Kris Deugau, 10 years ago

/trunk

Move a bunch of common code from _validate_1() into its own sub, since
we'll need to call it for any record that doesn't "belong" in a reverse
zone. And possibly the ones that do, too. See #53.
  • Property svn:keywords set to Date Rev Author Id
File size: 214.9 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 610 2014-04-16 17:11:14Z kdeugau $
5# Copyright 2008-2013 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
21package DNSDB;
22
23use strict;
24use warnings;
25use Exporter;
26use DBI;
27use Net::DNS;
28use Crypt::PasswdMD5;
29use Digest::MD5 qw(md5_hex);
30use Net::SMTP;
31use NetAddr::IP 4.027 qw(:lower);
32use POSIX;
33use Fcntl qw(:flock);
34use Time::TAI64 qw(:tai64);
35
36use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
37
38$VERSION = 1.3; ##VERSION##
39@ISA = qw(Exporter);
40@EXPORT_OK = qw(
41 &initGlobals &login &initActionLog
42 &getPermissions &changePermissions &comparePermissions
43 &changeGroup
44 &connectDB &finish
45 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
46 &getZoneCount &getZoneList &getZoneLocation
47 &addGroup &delGroup &getChildren &groupName
48 &getGroupCount &getGroupList
49 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
50 &getUserCount &getUserList &getUserDropdown
51 &addLoc &updateLoc &delLoc &getLoc
52 &getLocCount &getLocList &getLocDropdown
53 &getSOA &updateSOA &getRecLine &getRecList &getRecCount
54 &addRec &updateRec &delRec
55 &getLogCount &getLogEntries
56 &getRevPattern
57 &getTypelist
58 &parentID
59 &isParent
60 &zoneStatus &getZonesByCIDR &importAXFR
61 &export
62 &mailNotify
63 %typemap %reverse_typemap
64 @permtypes $permlist %permchains
65 );
66
67@EXPORT = qw(%typemap %reverse_typemap @permtypes $permlist %permchains);
68%EXPORT_TAGS = ( ALL => [qw(
69 &initGlobals &login &initActionLog
70 &getPermissions &changePermissions &comparePermissions
71 &changeGroup
72 &connectDB &finish
73 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
74 &getZoneCount &getZoneList &getZoneLocation
75 &addGroup &delGroup &getChildren &groupName
76 &getGroupCount &getGroupList
77 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
78 &getUserCount &getUserList &getUserDropdown
79 &addLoc &updateLoc &delLoc &getLoc
80 &getLocCount &getLocList &getLocDropdown
81 &getSOA &updateSOA &getRecLine &getRecList &getRecCount
82 &addRec &updateRec &delRec
83 &getLogCount &getLogEntries
84 &getRevPattern
85 &getTypelist
86 &parentID
87 &isParent
88 &zoneStatus &getZonesByCIDR &importAXFR
89 &export
90 &mailNotify
91 %typemap %reverse_typemap
92 @permtypes $permlist %permchains
93 )]
94 );
95
96our $errstr = '';
97our $resultstr = '';
98
99# Arguably defined wholly in the db, but little reason to change without supporting code changes
100# group_view, user_view permissions? separate rDNS permission(s)?
101our @permtypes = qw (
102 group_edit group_create group_delete
103 user_edit user_create user_delete
104 domain_edit domain_create domain_delete
105 record_edit record_create record_delete record_locchg
106 location_edit location_create location_delete location_view
107 self_edit admin
108);
109our $permlist = join(',',@permtypes);
110
111# Some permissions more or less require certain others.
112our %permchains = (
113 user_edit => 'self_edit',
114 location_edit => 'location_view',
115 location_create => 'location_view',
116 location_delete => 'location_view',
117 record_locchg => 'location_view',
118);
119
120# DNS record type map and reverse map.
121# loaded from the database, from http://www.iana.org/assignments/dns-parameters
122our %typemap;
123our %reverse_typemap;
124
125## (Semi)private variables
126
127# Hash of functions for validating record types. Filled in initGlobals() since
128# it relies on visibility flags from the rectypes table in the DB
129my %validators;
130
131# Entity-relationship reference hashes.
132my %par_tbl = (
133 group => 'groups',
134 user => 'users',
135 defrec => 'default_records',
136 defrevrec => 'default_rev_records',
137 domain => 'domains',
138 revzone => 'revzones',
139 record => 'records'
140 );
141my %id_col = (
142 group => 'group_id',
143 user => 'user_id',
144 defrec => 'record_id',
145 defrevrec => 'record_id',
146 domain => 'domain_id',
147 revzone => 'rdns_id',
148 record => 'record_id'
149 );
150my %par_col = (
151 group => 'parent_group_id',
152 user => 'group_id',
153 defrec => 'group_id',
154 defrevrec => 'group_id',
155 domain => 'group_id',
156 revzone => 'group_id',
157 record => 'domain_id'
158 );
159my %par_type = (
160 group => 'group',
161 user => 'group',
162 defrec => 'group',
163 defrevrec => 'group',
164 domain => 'group',
165 revzone => 'group',
166 record => 'domain'
167 );
168
169##
170## Constructor and destructor
171##
172
173sub new {
174 my $this = shift;
175 my $class = ref($this) || $this;
176 my %args = @_;
177
178 # Prepopulate a basic config. Note some of these *will* cause errors if left unset.
179 # note: add appropriate stanzas in __cfgload() to parse these
180 my %defconfig = (
181 # The only configuration options not loadable from a config file.
182 configfile => "/etc/dnsdb/dnsdb.conf", ##CFG_LEAF##
183
184 # Database connection info
185 dbname => 'dnsdb',
186 dbuser => 'dnsdb',
187 dbpass => 'secret',
188 dbhost => '',
189
190 # Email notice settings
191 mailhost => 'smtp.example.com',
192 mailnotify => 'dnsdb@example.com', # to
193 mailsender => 'dnsdb@example.com', # from
194 mailname => 'DNS Administration',
195 orgname => 'Example Corp',
196 domain => 'example.com',
197
198 # Template directory
199 templatedir => 'templates/',
200# fmeh. this is a real web path, not a logical internal one. hm..
201# cssdir => 'templates/',
202 sessiondir => 'session/',
203 exportcache => 'cache/',
204 usecache => 1, # do we bother using the cache above?
205
206 # Session params
207 timeout => '1h', # passed as-is to CGI::Session
208
209 # Other miscellanea
210 log_failures => 1, # log all evarthing by default
211 perpage => 15,
212 maxfcgi => 10, # reasonable default?
213 force_refresh => 1,
214 lowercase => 0, # mangle as little as possible by default
215 # show IPs and CIDR blocks as-is for reverse zones. valid values are
216 # 'none' (default, show natural IP or CIDR)
217 # 'zone' (zone name, wherever used)
218 # 'record' (IP or CIDR values in reverse record lists)
219 # 'all' (all IP values in any reverse zone view)
220 showrev_arpa => 'none',
221 );
222
223 # Config file parse calls.
224 # If we are passed a blank argument for $args{configfile},
225 # we should NOT parse the default config file - we will
226 # rely on hardcoded defaults OR caller-specified values.
227 # If we are passed a non-blank argument, parse that file.
228 # If no config file is specified, parse the default one.
229 my %siteconfig;
230 if (defined($args{configfile})) {
231 if ($args{configfile}) {
232 return if !__cfgload($args{configfile}, \%siteconfig);
233 }
234 } else {
235 return if !__cfgload($defconfig{configfile}, \%siteconfig);
236 }
237
238 # Assemble the object. Apply configuration hashes in order of precedence.
239 my $self = {
240 # Hardcoded defaults
241 %defconfig,
242 # Default config file OR caller-specified one, loaded above
243 %siteconfig,
244 # Caller-specified arguments
245 %args
246 };
247 bless $self, $class;
248
249 # Several settings are booleans. Handle multiple possible ways of setting them.
250 for my $boolopt ('log_failures', 'force_refresh', 'lowercase', 'usecache') {
251 if ($self->{$boolopt} ne '1' && $self->{$boolopt} ne '0') {
252 # true/false, on/off, yes/no all valid.
253 if ($self->{$boolopt} =~ /^(?:true|false|t|f|on|off|yes|no)$/) {
254 if ($self->{$boolopt} =~ /(?:true|t|on|yes)/) {
255 $self->{$boolopt} = 1;
256 } else {
257 $self->{$boolopt} = 0;
258 }
259 } else {
260 warn "Bad $boolopt setting $self->{$boolopt}, using default\n";
261 $self->{$boolopt} = $defconfig{$boolopt};
262 }
263 }
264 }
265
266 # Enum-ish option(s)
267 if (!grep /$self->{showrev_arpa}/, ('none','zone','record','all')) {
268 warn "Bad showrev_arpa setting $self->{showrev_arpa}, using default\n";
269 $self->{showrev_arpa} = 'none';
270 }
271
272 # Try to connect to the DB, and initialize a number of handy globals.
273 $self->{dbh} = connectDB($self->{dbname}, $self->{dbuser}, $self->{dbpass}, $self->{dbhost}) or return;
274 $self->initGlobals();
275
276 return $self;
277}
278
279sub DESTROY {
280 my $self = shift;
281 $self->{dbh}->disconnect if $self->{dbh};
282}
283
284sub errstr { $DNSDB::errstr; }
285
286##
287## utility functions
288##
289
290## DNSDB::_rectable()
291# Takes default+rdns flags, returns appropriate table name
292sub _rectable {
293 my $def = shift;
294 my $rev = shift;
295
296 return 'records' if $def ne 'y';
297 return 'default_records' if $rev ne 'y';
298 return 'default_rev_records';
299} # end _rectable()
300
301## DNSDB::_recparent()
302# Takes default+rdns flags, returns appropriate parent-id column name
303sub _recparent {
304 my $def = shift;
305 my $rev = shift;
306
307 return 'group_id' if $def eq 'y';
308 return 'rdns_id' if $rev eq 'y';
309 return 'domain_id';
310} # end _recparent()
311
312## DNSDB::_ipparent()
313# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
314# Takes default and reverse flags, IP (fragment) to check, parent zone ID,
315# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
316# database insertion)
317sub _ipparent {
318 my $self = shift;
319 my $dbh = $self->{dbh};
320 my $defrec = shift;
321 my $revrec = shift;
322 my $val = shift;
323 my $id = shift;
324 my $addr = shift;
325
326 return if $revrec ne 'y'; # this sub not useful in forward zones
327
328 $$addr = NetAddr::IP->new($$val); #necessary?
329
330 # subsub to split, reverse, and overlay an IP fragment on a netblock
331 sub __rev_overlay {
332 my $splitme = shift; # ':' or '.', m'lud?
333 my $parnet = shift;
334 my $val = shift;
335 my $addr = shift;
336
337 my $joinme = $splitme;
338 $splitme = '\.' if $splitme eq '.';
339 my @working = reverse(split($splitme, $parnet->addr));
340 my @parts = reverse(split($splitme, $$val));
341 for (my $i = 0; $i <= $#parts; $i++) {
342 $working[$i] = $parts[$i];
343 }
344 my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
345 return 0 unless $checkme->within($parnet);
346 $$addr = $checkme; # force "correct" IP to be recorded.
347 return 1;
348 }
349
350 my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
351 my $parnet = NetAddr::IP->new($parstr);
352
353 # Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
354 return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
355 return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
356
357 if ($$addr && ($$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/ || $$val =~ m|/\d+$|)) {
358 # the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address,
359 # or a netblock (only expected on templates)
360 # the rest we have to restructure before fiddling. *sigh*
361 return 1 if $$addr->within($parnet);
362 } else {
363 # We don't have a complete IP in $$val (yet)... unless we have a netblock
364 if ($parnet->addr =~ /:/) {
365 $$val =~ s/^:+//; # gotta strip'em all...
366 return __rev_overlay(':', $parnet, $val, $addr);
367 }
368 if ($parnet->addr =~ /\./) {
369 $$val =~ s/^\.+//;
370 return __rev_overlay('.', $parnet, $val, $addr);
371 }
372 # should be impossible to get here...
373 }
374 # ... and here.
375 # can't do nuttin' in forward zones
376} # end _ipparent()
377
378## DNSDB::_maybeip()
379# Wrapper for quick "does this look like an IP address?" regex, so we don't make dumb copy-paste mistakes
380sub _maybeip {
381 my $izzit = shift; # reference
382 return 1 if $$izzit =~ m,^(?:[\d\./]+|[0-9a-fA-F:/]+)$,;
383}
384
385## DNSDB::_inrev()
386# Check if a given "hostname" is within a given reverse zone
387# Takes a reference to the "hostname" and the reverse zone CIDR as a NetAddr::IP
388# Returns true/false. Sets $errstr on errors.
389sub _inrev {
390 my $self = shift;
391 my $dbh = $self->{dbh};
392 # References, since we might munge them
393 my $fq = shift;
394 my $zone = shift;
395
396 # set default error
397 $errstr = "$$fq not within $zone";
398
399 # Unlike forward zones, we will not coerce the data into the reverse zone - an A record
400 # in a reverse zone is already silly enough without appending a mess of 1.2.3.in-addr.arpa
401 # (or worse, 1.2.3.4.5.6.7.8.ip6.arpa) on the end of the nominal "hostname".
402 # We're also going to allow the "hostname" to be stored as .arpa or IP, because of
403 # non-IP FQDNs in .arpa
404 if ($$fq =~ /\.arpa$/) {
405 # "FQDN" could be any syntactically legitimate string, but it must be within the formal
406 # .arpa zone. Note we're not validating these for correct reverse-IP values.
407 # yes, we really need the v6 branch on the end here.
408 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
409 return unless $$fq =~ /$zone$/;
410 } else {
411 # in most cases we should be getting a real IP as the "FQDN" to test
412 my $addr = new NetAddr::IP $$fq if _maybeip($fq);
413
414 # "FQDN" should be a valid IP address. Normalize formatting if so.
415 if (!$addr) {
416 $errstr = "$$fq is not a valid IP address";
417 return;
418 }
419 return if !$zone->contains($addr);
420 ($$fq = $addr) =~ s{/(?:32|128)$}{};
421 }
422 return 1;
423} # end _inrev()
424
425## DNSDB::_hostparent()
426# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
427# Takes a hostname.
428# Returns the domain ID of the parent domain if one was found.
429sub _hostparent {
430 my $self = shift;
431 my $dbh = $self->{dbh};
432 my $hname = shift;
433
434 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
435 my @hostbits = split /\./, $hname;
436 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE lower(domain) = lower(?) GROUP BY domain_id");
437 foreach (@hostbits) {
438 $sth->execute($hname);
439 my ($found, $parid) = $sth->fetchrow_array;
440 if ($found) {
441 return $parid;
442 }
443 $hname =~ s/^$_\.//;
444 }
445} # end _hostparent()
446
447## DNSDB::_log()
448# Log an action
449# Takes a log entry hash containing at least:
450# group_id, log entry
451# and optionally one or more of:
452# domain_id, rdns_id
453# The %userdata hash provides the user ID, username, and fullname
454sub _log {
455 my $self = shift;
456 my $dbh = $self->{dbh};
457
458 my %args = @_;
459
460 $args{rdns_id} = 0 if !$args{rdns_id};
461 $args{domain_id} = 0 if !$args{domain_id};
462
463##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
464# if ($self->{log_channel} eq 'sql') {
465 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
466 undef,
467 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
468 $self->{loguserid}, $self->{logusername}, $self->{logfullname}) );
469# } elsif ($self->{log_channel} eq 'file') {
470# } elsif ($self->{log_channel} eq 'syslog') {
471# }
472} # end _log
473
474
475##
476## Record validation subs.
477##
478
479## All of these subs take substantially the same arguments:
480# a hash containing at least the following keys:
481# - defrec (default/live flag)
482# - revrec (forward/reverse flag)
483# - id (parent entity ID)
484# - host (hostname)
485# - rectype
486# - val (IP, hostname [CNAME/MX/SRV] or text)
487# - addr (NetAddr::IP object from val. May be undef.)
488# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
489# host, rectype, and addr should be references as these may be modified in validation
490
491# A record
492sub _validate_1 {
493 my $self = shift;
494 my $dbh = $self->{dbh};
495
496 my %args = @_;
497
498# only for strict type restrictions
499# return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
500
501 if ($args{revrec} eq 'y') {
502 # Get the revzone, so we can see if ${$args{val}} is in that zone
503 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
504
505 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
506
507 # Check IP is well-formed, and that it's a v4 address
508 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
509 return ('FAIL',"A record must be a valid IPv4 address")
510 unless ${$args{host}} =~ /^\d+\.\d+\.\d+\.\d+$/;
511 $args{addr} = new NetAddr::IP ${$args{host}};
512 return ('FAIL',"A record must be a valid IPv4 address")
513 unless $args{addr} && !$args{addr}->{isv6};
514 # coerce IP/value to normalized form for storage
515 ${$args{host}} = $args{addr}->addr;
516
517 # I'm just going to ignore the utterly barmy idea of an A record in the *default*
518 # records for a reverse zone; it's bad enough to find one in funky legacy data.
519
520 } else {
521 # revrec ne 'y'
522
523 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
524 # or the intended parent domain for live records.
525 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
526 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/);
527
528 # Check IP is well-formed, and that it's a v4 address
529 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
530 return ('FAIL',"A record must be a valid IPv4 address")
531 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
532 return ('FAIL',"A record must be a valid IPv4 address")
533 unless $args{addr} && !$args{addr}->{isv6};
534 # coerce IP/value to normalized form for storage
535 ${$args{val}} = $args{addr}->addr;
536 }
537
538 return ('OK','OK');
539} # done A record
540
541# NS record
542sub _validate_2 {
543 my $self = shift;
544 my $dbh = $self->{dbh};
545
546 my %args = @_;
547
548 # Check that the target of the record is within the parent.
549 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
550 if ($args{defrec} eq 'n') {
551 # Check if IP/address/zone/"subzone" is within the parent
552 if ($args{revrec} eq 'y') {
553 my $tmpip = NetAddr::IP->new(${$args{val}});
554 my $pname = $self->revName($args{id});
555 return ('FAIL',"${$args{val}} not within $pname")
556 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
557 # Sub the returned thing for ZONE? This could get stupid if you have typos...
558 ${$args{val}} =~ s/ZONE/$tmpip->address/;
559 } else {
560 my $pname = $self->domainName($args{id});
561 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
562 }
563 } else {
564 # Default reverse NS records should always refer to the implied parent
565 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
566 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
567 }
568
569# Let this lie for now. Needs more magic.
570# # Check IP is well-formed, and that it's a v4 address
571# return ('FAIL',"A record must be a valid IPv4 address")
572# unless $addr && !$addr->{isv6};
573# # coerce IP/value to normalized form for storage
574# $$val = $addr->addr;
575
576 return ('OK','OK');
577} # done NS record
578
579# CNAME record
580sub _validate_5 {
581 my $self = shift;
582 my $dbh = $self->{dbh};
583
584 my %args = @_;
585
586# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
587# This is fundamentally a messy operation and should really just be taken care of by the
588# export process, not manual maintenance of the necessary records.
589 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
590
591 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
592 # or the intended parent domain for live records.
593 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
594 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
595
596 return ('OK','OK');
597} # done CNAME record
598
599# SOA record
600sub _validate_6 {
601 # Smart monkeys won't stick their fingers in here; we have
602 # separate dedicated routines to deal with SOA records.
603 return ('OK','OK');
604} # done SOA record
605
606# PTR record
607sub _validate_12 {
608 my $self = shift;
609 my $dbh = $self->{dbh};
610
611 my %args = @_;
612
613 if ($args{revrec} eq 'y') {
614 if ($args{defrec} eq 'n') {
615 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
616 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
617 ${$args{val}} = $args{addr}->addr;
618 } else {
619 if (${$args{val}} =~ /\./) {
620 # looks like a v4 or fragment
621 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
622 # woo! a complete IP! validate it and normalize, or fail.
623 $args{addr} = NetAddr::IP->new(${$args{val}})
624 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
625 ${$args{val}} = $args{addr}->addr;
626 } else {
627 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
628 }
629 } elsif (${$args{val}} =~ /[a-f:]/) {
630 # looks like a v6 or fragment
631 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
632 if ($args{addr}) {
633 if ($args{addr}->addr =~ /^0/) {
634 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
635 } else {
636 ${$args{val}} = $args{addr}->addr;
637 }
638 }
639 } else {
640 # bare number (probably). These could be v4 or v6, so we'll
641 # expand on these on creation of a reverse zone.
642 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
643 }
644 ${$args{host}} =~ s/\.*$/\.$self->{domain}/ if ${$args{host}} !~ /(?:$self->{domain}|ADMINDOMAIN)$/;
645 }
646
647# Multiple PTR records do NOT generally do what most people believe they do,
648# and tend to fail in the most awkward way possible. Check and warn.
649# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
650
651 my @checkvals = (${$args{val}});
652 if (${$args{val}} =~ /,/) {
653 # push . and :: variants into checkvals if val has ,
654 my $tmp;
655 ($tmp = ${$args{val}}) =~ s/,/./;
656 push @checkvals, $tmp;
657 ($tmp = ${$args{val}}) =~ s/,/::/;
658 push @checkvals, $tmp;
659 }
660 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
661 foreach my $checkme (@checkvals) {
662 if ($args{update}) {
663 # Record update. There should usually be an existing PTR (the record being updated)
664 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
665 " WHERE val = ?", undef, ($checkme)) };
666 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
667 if @ptrs && (!grep /^$args{update}$/, @ptrs);
668 } else {
669 # New record. Always warn if a PTR exists
670 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
671 " WHERE val = ?", undef, ($checkme));
672 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
673 if $ptrcount;
674 }
675 }
676
677 } else {
678 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
679 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
680 # PTR records on export
681 return ('FAIL',"Forward zones cannot contain PTR records");
682 }
683
684 return ('OK','OK');
685} # done PTR record
686
687# MX record
688sub _validate_15 {
689 my $self = shift;
690 my $dbh = $self->{dbh};
691
692 my %args = @_;
693
694# Not absolutely true but WTF use is an MX record for a reverse zone?
695 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
696
697 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
698 ${$args{dist}} =~ s/\s*//g;
699 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
700
701 ${$args{fields}} = "distance,";
702 push @{$args{vallist}}, ${$args{dist}};
703
704 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
705 # or the intended parent domain for live records.
706 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
707 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
708
709# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
710# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
711# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
712# return ('FAIL',"$val is not a valid IP address") if !$addr;
713# }
714# }
715
716 return ('OK','OK');
717} # done MX record
718
719# TXT record
720sub _validate_16 {
721 my $self = shift;
722
723 my %args = @_;
724
725 if ($args{revrec} eq 'y') {
726 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
727 # or the intended parent domain for live records.
728 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
729 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
730 }
731
732 # Could arguably put a WARN return here on very long (>512) records
733 return ('OK','OK');
734} # done TXT record
735
736# RP record
737sub _validate_17 {
738 # Probably have to validate these some day
739 return ('OK','OK');
740} # done RP record
741
742# AAAA record
743sub _validate_28 {
744 my $self = shift;
745 my $dbh = $self->{dbh};
746
747 my %args = @_;
748
749 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
750
751 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
752 # or the intended parent domain for live records.
753 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
754 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
755
756 # Check IP is well-formed, and that it's a v6 address
757 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
758 unless $args{addr} && $args{addr}->{isv6};
759 # coerce IP/value to normalized form for storage
760 ${$args{val}} = $args{addr}->addr;
761
762 return ('OK','OK');
763} # done AAAA record
764
765# SRV record
766sub _validate_33 {
767 my $self = shift;
768 my $dbh = $self->{dbh};
769
770 my %args = @_;
771
772# Not absolutely true but WTF use is an SRV record for a reverse zone?
773 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
774
775 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
776 ${$args{dist}} =~ s/\s*//g;
777 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
778
779 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
780 # or the intended parent domain for live records.
781 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
782 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
783
784 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
785 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
786 return ('FAIL',"Port and weight are required for SRV records")
787 unless defined(${$args{weight}}) && defined(${$args{port}});
788 ${$args{weight}} =~ s/\s*//g;
789 ${$args{port}} =~ s/\s*//g;
790
791 return ('FAIL',"Port and weight are required, and must be numeric")
792 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
793
794 ${$args{fields}} = "distance,weight,port,";
795 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
796
797 return ('OK','OK');
798} # done SRV record
799
800# Now the custom types
801
802# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
803sub _validate_65280 {
804 my $self = shift;
805 my $dbh = $self->{dbh};
806
807 my %args = @_;
808
809 my $code = 'OK';
810 my $msg = 'OK';
811
812 if ($args{defrec} eq 'n') {
813 # live record; revrec determines whether we validate the PTR or A component first.
814
815 if ($args{revrec} eq 'y') {
816 ($code,$msg) = $self->_validate_12(%args);
817 return ($code,$msg) if $code eq 'FAIL';
818
819 # check A+PTR is really v4
820 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
821 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
822 # check AAAA+PTR is really v6
823 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
824 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
825
826 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
827 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
828 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
829 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
830 $msg .= "\n$addmsg" if $code eq 'WARN';
831 $msg = $addmsg if $code eq 'OK';
832 ${$args{rectype}} = $reverse_typemap{PTR};
833 return ('WARN', $msg);
834 }
835
836 # Add domain ID to field list and values
837 ${$args{fields}} .= "domain_id,";
838 push @{$args{vallist}}, ${$args{domid}};
839
840 } else {
841 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
842 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
843 return ($code,$msg) if $code eq 'FAIL';
844
845 # Check if the requested reverse zone exists - note, an IP fragment won't
846 # work here since we don't *know* which parent to put it in.
847 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
848 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
849 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
850 if (!$revid) {
851 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
852 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
853 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
854 return ('WARN', $msg);
855 }
856
857 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
858 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
859 if ($args{update}) {
860 # Record update. There should usually be an existing PTR (the record being updated)
861 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
862 " WHERE val = ?", undef, (${$args{val}})) };
863 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
864 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
865 $code = 'WARN';
866 }
867 } else {
868 # New record. Always warn if a PTR exists
869 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
870 " WHERE val = ?", undef, (${$args{val}}));
871 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
872 if $ptrcount;
873 $code = 'WARN' if $ptrcount;
874 }
875
876# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
877# " WHERE val = ?", undef, ${$args{val}});
878# if ($ptrcount) {
879# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
880# " WHERE val = ?
881# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
882# $code = 'WARN';
883# }
884
885 ${$args{fields}} .= "rdns_id,";
886 push @{$args{vallist}}, $revid;
887 }
888
889 } else { # defrec eq 'y'
890 if ($args{revrec} eq 'y') {
891 ($code,$msg) = $self->_validate_12(%args);
892 return ($code,$msg) if $code eq 'FAIL';
893 if (${$args{rectype}} == 65280) {
894 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
895 if ${$args{val}} =~ /:/;
896 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
897 } elsif (${$args{rectype}} == 65281) {
898 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
899 if ${$args{val}} =~ /\./;
900 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
901 }
902 } else {
903 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
904 # domains, since you wouldn't be able to substitute both domain and reverse zone
905 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
906 # confuse the hell out of pretty much anything that uses them.
907##fixme: make this a config flag?
908 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
909 }
910 }
911
912 return ($code, $msg);
913} # done A+PTR record
914
915# AAAA+PTR record
916# A+PTR above has been magicked to handle AAAA+PTR as well.
917sub _validate_65281 {
918 return _validate_65280(@_);
919} # done AAAA+PTR record
920
921# PTR template record
922sub _validate_65282 {
923 my $self = shift;
924 my $dbh = $self->{dbh};
925
926 my %args = @_;
927
928 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
929 if ($args{revrec} eq 'y') {
930 if ($args{defrec} eq 'n') {
931 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
932 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
933##fixme: warn if $args{val} is not /31 or larger block?
934 ${$args{val}} = "$args{addr}";
935 } else {
936 if (${$args{val}} =~ /\./) {
937 # looks like a v4 or fragment
938 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
939 # woo! a complete IP! validate it and normalize, or fail.
940 $args{addr} = NetAddr::IP->new(${$args{val}})
941 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
942 ${$args{val}} = "$args{addr}";
943 } else {
944 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
945 }
946 } elsif (${$args{val}} =~ /[a-f:]/) {
947 # looks like a v6 or fragment
948 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
949 if ($args{addr}) {
950 if ($args{addr}->addr =~ /^0/) {
951 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
952 } else {
953 ${$args{val}} = "$args{addr}";
954 }
955 }
956 } else {
957 # bare number (probably). These could be v4 or v6, so we'll
958 # expand on these on creation of a reverse zone.
959 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
960 }
961 }
962##fixme: validate %-patterns?
963
964# Unlike single PTR records, there is absolutely no way to sanely support multiple
965# PTR templates for the same block, since they expect to expand to all the individual
966# IPs on export. Nested templates should be supported though.
967
968 my @checkvals = (${$args{val}});
969 if (${$args{val}} =~ /,/) {
970 # push . and :: variants into checkvals if val has ,
971 my $tmp;
972 ($tmp = ${$args{val}}) =~ s/,/./;
973 push @checkvals, $tmp;
974 ($tmp = ${$args{val}}) =~ s/,/::/;
975 push @checkvals, $tmp;
976 }
977##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
978# Per Netblock such that they don't conflict on export
979 my $typeck;
980# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
981 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
982# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
983 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
984# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
985 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
986 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
987 "AND (type=65282 OR $typeck)");
988 foreach my $checkme (@checkvals) {
989 $pcsth->execute($checkme);
990 my ($rc) = $pcsth->fetchrow_array;
991 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
992 }
993
994 } else {
995 return ('FAIL', "Forward zones cannot contain PTR records");
996 }
997
998 return ('OK','OK');
999} # done PTR template record
1000
1001# A+PTR template record
1002sub _validate_65283 {
1003 my $self = shift;
1004 my $dbh = $self->{dbh};
1005
1006 my %args = @_;
1007
1008 my ($code,$msg) = ('OK','OK');
1009
1010##fixme: need to fiddle things since A+PTR templates are acceptable in live
1011# forward zones but not default records
1012 if ($args{defrec} eq 'n') {
1013 if ($args{revrec} eq 'n') {
1014 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
1015 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
1016 return ($code,$msg) if $code eq 'FAIL';
1017
1018 # Check if the requested reverse zone exists - note, an IP fragment won't
1019 # work here since we don't *know* which parent to put it in.
1020 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1021 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1022 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1023 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
1024 if (!$revid) {
1025 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
1026 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
1027##fixme: add A template, AAAA template types?
1028# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1029 return ('FAIL', $msg);
1030 }
1031
1032 # Add reverse zone ID to field list and values
1033 ${$args{fields}} .= "rdns_id,";
1034 push @{$args{vallist}}, $revid;
1035
1036 } else {
1037 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
1038 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1039 ${$args{val}} = "$args{addr}";
1040
1041 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1042 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1043 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1044 $msg .= "\n$addmsg" if $code eq 'WARN';
1045 $msg = $addmsg if $code eq 'OK';
1046 ${$args{rectype}} = 65282;
1047 return ('WARN', $msg);
1048 }
1049
1050 # Add domain ID to field list and values
1051 ${$args{fields}} .= "domain_id,";
1052 push @{$args{vallist}}, ${$args{domid}};
1053 }
1054
1055 } else {
1056 my ($code,$msg) = $self->_validate_65282(%args);
1057 return ($code, $msg) if $code eq 'FAIL';
1058 # get domain, check against ${$args{name}}
1059 }
1060
1061 return ('OK','OK');
1062} # done AAAA+PTR template record
1063
1064# AAAA+PTR template record
1065sub _validate_65284 {
1066 return ('OK','OK');
1067} # done AAAA+PTR template record
1068
1069# Delegation record
1070# This is essentially a specialized clone of the NS record, primarily useful
1071# for delegating IPv4 sub-/24 reverse blocks
1072sub _validate_65285 {
1073 my $self = shift;
1074 my $dbh = $self->{dbh};
1075
1076 my %args = @_;
1077
1078# Almost, but not quite, identical to NS record validation.
1079
1080 # Check that the target of the record is within the parent.
1081 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
1082 if ($args{defrec} eq 'n') {
1083 # Check if IP/address/zone/"subzone" is within the parent
1084 if ($args{revrec} eq 'y') {
1085 my $tmpip = NetAddr::IP->new(${$args{val}});
1086 my $pname = $self->revName($args{id});
1087 return ('FAIL',"${$args{val}} not within $pname")
1088 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
1089 # Normalize
1090 ${$args{val}} = "$tmpip";
1091 } else {
1092 my $pname = $self->domainName($args{id});
1093 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
1094 }
1095 } else {
1096 return ('FAIL',"Delegation records are not permitted in default record sets");
1097 }
1098 return ('OK','OK');
1099}
1100
1101
1102##
1103## Record data substitution subs
1104##
1105
1106# Replace ZONE in hostname, or create (most of) the actual proper zone name
1107sub _ZONE {
1108 my $zone = shift;
1109 my $string = shift;
1110 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
1111 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
1112
1113 my $prefix;
1114
1115 $string =~ s/,/./ if !$zone->{isv6};
1116 $string =~ s/,/::/ if $zone->{isv6};
1117
1118 # Subbing ZONE in the host. We need to properly ID the netblock range
1119 # The subbed text should have "network IP with trailing zeros stripped" for
1120 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
1121 # For blocks that do NOT line up on these boundaries, we take the most
1122 # significant octet or 16-bit chunk of the "broadcast" IP and append it
1123 # after a double-dash
1124 # ie:
1125 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1126 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1127 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1128 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1129 # Similar for v6
1130
1131 if (!$zone->{isv6}) { # IPv4
1132
1133 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1134 # a funky subnet that had host bits set.
1135 my $bc = $zone->broadcast->addr;
1136
1137 if ($zone->masklen > 24) {
1138 $bc =~ s/^\d+\.\d+\.\d+\.//;
1139 } elsif ($zone->masklen > 16) {
1140 $prefix =~ s/\.0$//;
1141 $bc =~ s/^\d+\.\d+\.//;
1142 } elsif ($zone->masklen > 8) {
1143 $bc =~ s/^\d+\.//;
1144 $prefix =~ s/\.0\.0$//;
1145 } else {
1146 $prefix =~ s/\.0\.0\.0$//;
1147 }
1148 if ($zone->masklen % 8) {
1149 $bc =~ s/(\.255)+$//;
1150 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1151 }
1152 if ($fr eq 'f') {
1153 $prefix =~ s/\.+/$sep/g;
1154 } else {
1155 $prefix = join($sep, reverse(split(/\./, $prefix)));
1156 }
1157
1158 } else { # IPv6
1159
1160 if ($fr eq 'f') {
1161
1162 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1163 # a funky subnet that had host bits set.
1164 my $bc = $zone->broadcast->addr;
1165 if (($zone->masklen % 16) != 0) {
1166 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1167 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1168 $prefix =~ s/:0$//;
1169 $bc =~ s/:ffff$//;
1170 }
1171 # Strip the leading 16-bit chunks off the front of the broadcast IP
1172 $bc =~ s/^([a-f0-9]+:)+//;
1173 # Append the remaining 16-bit chunk to the prefix after "--"
1174 $prefix .= "--$bc";
1175 } else {
1176 # Strip off :0 from the end until we reach the netblock length.
1177 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1178 $prefix =~ s/:0$//;
1179 }
1180 }
1181 # Actually deal with the separator
1182 $prefix =~ s/:/$sep/g;
1183
1184 } else { # $fr eq 'f'
1185
1186 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1187 # a funky subnet that had host bits set.
1188 my $bc = $zone->broadcast->full;
1189 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1190 $bc =~ s/://g;
1191 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1192 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1193 $prefix =~ s/0$//;
1194 $bc =~ s/f$//;
1195 }
1196 # Split and reverse the order of the nibbles in the network/broadcast IPs
1197 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1198 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1199 my @nbits = reverse split //, $prefix;
1200 my @bbits = reverse split //, $bc;
1201 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1202 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1203 # Glue it back together
1204 $prefix = join($sep, @nbits);
1205
1206 } # $fr ne 'f'
1207
1208 } # $zone->{isv6}
1209
1210 # Do the substitution, finally
1211 $string =~ s/ZONE/$prefix/;
1212 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1213 return $string;
1214} # done _ZONE()
1215
1216# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1217# given the .arpa zone name, return the CIDR netblock the zone is for.
1218# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1219# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1220# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1221sub _zone2cidr {
1222 my $zone = shift;
1223
1224 my $cidr;
1225 my $tmpcidr;
1226 my $warnmsg = '';
1227
1228 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1229 # v4 revzone, formal zone name type
1230 my $tmpzone = $zone;
1231 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name [$tmpzone]")
1232 if $tmpzone !~ m{^(?:\d+[/-])?[\d\.]+\.in-addr\.arpa\.?$};
1233 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1234
1235 # Snag the octet pieces
1236 my @octs = split /\./, $tmpzone;
1237
1238 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1239 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1240 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1241 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1242 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1243 );
1244
1245 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1246 # Need to take the size of the range to offset the basic octet-based mask length,
1247 # and make sure the first number in the range gets used as the network address for the block
1248 # Alternate form: The second number is actually the real netmask, not the end of the range.
1249 my $masklen = 0;
1250 if ($octs[0] =~ m{^((\d+)[/-](\d+))$}) { # take the range...
1251 if (24 < $3 && $3 < 31) {
1252 # we have a real netmask
1253 $masklen = -$maskmap{$3};
1254 } else {
1255 # we have a range. NB: only real CIDR ranges are supported
1256 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1257 }
1258 $octs[0] = $2; # set the base octet of the range...
1259 }
1260 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1261
1262# arguably we should only allow sub-octet range/mask in-addr.arpa
1263# specifications in the least significant octet, but the code is
1264# simpler if we deal with sub-octet delegations at any level.
1265
1266 # Now we find the "true" mask with the aid of the "base" calculated above
1267 if ($#octs == 0) {
1268 $masklen += 8;
1269 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1270 } elsif ($#octs == 1) {
1271 $masklen += 16;
1272 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1273 } elsif ($#octs == 2) {
1274 $masklen += 24;
1275 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1276 } else {
1277 $masklen += 32;
1278 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1279 }
1280
1281 } elsif ($zone =~ /\.ip6\.arpa\.?$/) {
1282 # v6 revzone, formal zone name type
1283 my $tmpzone = $zone;
1284##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1285 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name [$tmpzone]")
1286 if $tmpzone !~ /^[a-fA-F\d\.]+\.ip6\.arpa\.?$/;
1287 $tmpzone =~ s/\.ip6\.arpa\.?//;
1288 my @quads = reverse(split(/\./, $tmpzone));
1289 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1290 my $nc;
1291 foreach (@quads) {
1292 $tmpcidr .= $_;
1293 $tmpcidr .= ":" if ++$nc % 4 == 0 && $nc < $#quads;
1294 }
1295 my $nq = 1 if $nc % 4 != 0;
1296 my $mask = $nc * 4; # need to do this here because we probably increment it below
1297 while ($nc++ % 4 != 0) {
1298 $tmpcidr .= "0";
1299 }
1300 # polish it off with trailing ::/mask if this is a CIDR block instead of an IP
1301 $tmpcidr .= "::/$mask" if $mask != 128;
1302 }
1303
1304 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1305 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1306 unless $cidr = NetAddr::IP->new($tmpcidr);
1307
1308 if ($warnmsg) {
1309 $errstr = $warnmsg;
1310 return ('WARN', $cidr);
1311 }
1312 return ('OK', $cidr);
1313##fixme: use wantarray() to decide what to return?
1314} # done _zone2cidr()
1315
1316# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1317# really have a sane way to handle this type of expansion at the moment
1318# due to the size of the address space.
1319# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1320sub _template4_expand {
1321 my $tmpl = shift;
1322 my $ip = shift;
1323
1324 my @ipparts = split /\./, $ip;
1325 my @iphex;
1326 my @ippad;
1327 for (@ipparts) {
1328 push @iphex, sprintf("%x", $_);
1329 push @ippad, sprintf("%0.3u", $_);
1330 }
1331
1332 # IP substitutions in template records:
1333 #major patterns:
1334 #dashed IP, forward and reverse
1335 #underscoreed IP, forward and reverse
1336 #dotted IP, forward and reverse (even if forward is... dumb)
1337 # -> %r for reverse, %i for forward, leading -, _, or . to indicate separator, defaults to -
1338 # %r or %-r => %4d-%3d-%2d-%1d
1339 # %_r => %4d_%3d_%2d_%1d
1340 # %.r => %4d.%3d.%2d.%1d
1341 # %i or %-i => %1d-%2d-%3d-%4d
1342 # %_i => %1d_%2d_%3d_%4d
1343 # %.i => %1d.%2d.%3d.%4d
1344 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1345 $$tmpl =~ s/\%([-._])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1346 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1347 $$tmpl =~ s/\%([-._])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1348
1349 #hex-coded IP
1350 # %h
1351 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1352
1353 #IP as decimal-coded 32-bit value
1354 # %d
1355 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1356 $$tmpl =~ s/\%d/$iptmp/g;
1357
1358 #minor patterns (per-octet)
1359 # %[1234][dh0]
1360 #octet
1361 #hex-coded octet
1362 #0-padded octet
1363 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1364 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1365 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1366} # _template4_expand()
1367
1368# Broad syntactic check on the hostname. Checks for valid characters, correctly-expandable template patterns.
1369# Takes the hostname, type, and live/default and forward/reverse flags
1370# Returns true/false, sets errstr on failures
1371sub _check_hostname_form {
1372 my ($hname,$rectype,$defrec,$revrec) = @_;
1373
1374 if ($hname =~ /\%/ && ($rectype == 65282 || $rectype == 65283) ) {
1375 my $tmphost = $hname;
1376 # we don't actually need to test with the real IP passed; that saves a bit of fiddling.
1377 _template4_expand(\$tmphost, '10.10.10.10');
1378 if ($tmphost =~ /\%/) {
1379 $errstr = "Invalid template $hname";
1380 return;
1381 }
1382 } elsif ($revrec eq 'y') {
1383 # Reverse zones don't support @ in hostnames
1384 # Also skip failure on revzone TXT records; the hostname contains the TXT content in that case.
1385 if ($rectype != $reverse_typemap{TXT} && lc($hname) !~ /^[0-9a-z_.-]+$/) {
1386 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1387 return;
1388 }
1389 } else {
1390 if (lc($hname) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+|@)$/) {
1391 # Don't mention @, because it would be far too wordy to explain the nuance of @
1392 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1393 return;
1394 }
1395 }
1396 return 1;
1397} # _check_hostname_form()
1398
1399
1400##
1401## Initialization and cleanup subs
1402##
1403
1404## DNSDB::__cfgload()
1405# Private sub to parse a config file and load it into %config
1406# Takes a filename and a hashref to put the parsed entries in
1407sub __cfgload {
1408 $errstr = '';
1409 my $cfgfile = shift;
1410 my $cfg = shift;
1411
1412 if (open CFG, "<$cfgfile") {
1413 while (<CFG>) {
1414 chomp;
1415 s/^\s*//;
1416 next if /^#/;
1417 next if /^$/;
1418# hmm. more complex bits in this file might require [heading] headers, maybe?
1419# $mode = $1 if /^\[(a-z)+]/;
1420 # DB connect info
1421 $cfg->{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1422 $cfg->{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1423 $cfg->{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1424 $cfg->{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1425 # Mail settings
1426 $cfg->{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1427 $cfg->{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1428 $cfg->{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1429 $cfg->{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1430 $cfg->{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1431 $cfg->{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1432 # session - note this is fed directly to CGI::Session
1433 $cfg->{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1434 $cfg->{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1435 # misc
1436 $cfg->{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1437 $cfg->{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1438 $cfg->{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1439 $cfg->{usecache} = $1 if m{^usecache\s*=\s*([a-z01]+)}i;
1440 $cfg->{force_refresh} = $1 if /^force_refresh\s*=\s*([a-z01]+)/i;
1441 $cfg->{lowercase} = $1 if /^lowercase\s*=\s*([a-z01]+)/i;
1442 $cfg->{showrev_arpa} = $1 if /^showrev_arpa\s*=\s*([a-z]+)/i;
1443# not supported in dns.cgi yet
1444# $cfg->{templatedir} = $1 if m{^templatedir\s*=\s*([a-z0-9/_.-]+)}i;
1445# $cfg->{templateoverride} = $1 if m{^templateoverride\s*=\s*([a-z0-9/_.-]+)}i;
1446 # RPC options
1447 $cfg->{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1448 $cfg->{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1449 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1450 my @ips = split /[,\s]+/, $tmp;
1451 my $rpcsys = shift @ips;
1452 push @{$cfg->{rpcacl}{$rpcsys}}, @ips;
1453 }
1454 }
1455 close CFG;
1456 } else {
1457 $errstr = "Couldn't load configuration file $cfgfile: $!";
1458 return;
1459 }
1460 return 1;
1461} # end __cfgload()
1462
1463
1464## DNSDB::connectDB()
1465# Creates connection to DNS database.
1466# Requires the database name, username, and password.
1467# Returns a handle to the db or undef on failure.
1468# Set up for a PostgreSQL db; could be any transactional DBMS with the
1469# right changes.
1470# Called by new(); not intended to be called publicly.
1471sub connectDB {
1472 $errstr = '';
1473 my $dbname = shift;
1474 my $user = shift;
1475 my $pass = shift;
1476 my $dbh;
1477 my $DSN = "DBI:Pg:dbname=$dbname";
1478
1479 my $host = shift;
1480 $DSN .= ";host=$host" if $host;
1481
1482# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1483# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1484 $dbh = DBI->connect($DSN, $user, $pass, {
1485 AutoCommit => 1,
1486 PrintError => 0
1487 });
1488 if (!$dbh) {
1489 $errstr = $DBI::errstr;
1490 return;
1491 }
1492#) if(!$dbh);
1493
1494 local $dbh->{RaiseError} = 1;
1495
1496 eval {
1497##fixme: initialize the DB if we can't find the table (since, by definition, there's
1498# nothing there if we can't select from it...)
1499 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1500 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1501# return (undef,$DBI::errstr) if $dbh->err;
1502
1503#if ($tblcount == 0) {
1504# # create tables one at a time, checking for each.
1505# return (undef, "check table misc missing");
1506#}
1507
1508# Return here if we can't select.
1509# This should retrieve the dbversion key.
1510 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1511 $sth->execute();
1512# return (undef,$DBI::errstr) if ($sth->err);
1513
1514##fixme: do stuff to the DB on version mismatch
1515# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1516# DB should be downward-compatible; column defaults should give sane (if possibly
1517# useless-and-needs-help) values in columns an older software stack doesn't know about.
1518
1519# See if the select returned anything (or null data). This should
1520# succeed if the select executed, but...
1521 $sth->fetchrow();
1522# return (undef,$DBI::errstr) if ($sth->err);
1523
1524 $sth->finish;
1525
1526 }; # wrapped DB checks
1527 if ($@) {
1528 $errstr = $@;
1529 return;
1530 }
1531
1532# If we get here, we should be OK.
1533 return $dbh;
1534} # end connectDB
1535
1536
1537## DNSDB::finish()
1538# Cleans up after database handles and so on.
1539# Requires a database handle
1540sub finish {
1541 my $self = shift;
1542 $self->{dbh}->disconnect;
1543} # end finish
1544
1545
1546## DNSDB::initGlobals()
1547# Initialize global variables
1548# NB: this does NOT include web-specific session variables!
1549sub initGlobals {
1550 my $self = shift;
1551 my $dbh = $self->{dbh};
1552
1553# load record types from database
1554 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1555 $sth->execute;
1556 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1557 $typemap{$recval} = $recname;
1558 $reverse_typemap{$recname} = $recval;
1559 # now we fill the record validation function hash
1560 if ($stdflag < 5) {
1561 my $fn = "_validate_$recval";
1562 $validators{$recval} = \&$fn;
1563 } else {
1564 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1565 $validators{$recval} = eval $fn;
1566 }
1567 }
1568} # end initGlobals
1569
1570
1571## DNSDB::initRPC()
1572# Takes a remote username and remote fullname.
1573# Sets up the RPC logging-pseudouser if needed.
1574# Sets the %userdata hash for logging.
1575# Returns undef on failure
1576sub initRPC {
1577 my $self = shift;
1578 my $dbh = $self->{dbh};
1579 my %args = @_;
1580
1581 return if !$args{username};
1582 return if !$args{fullname};
1583
1584 $args{username} = "$args{username}/$args{rpcsys}";
1585
1586 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1587 " FROM users WHERE username=?", undef, ($args{username}) );
1588 if (!$tmpuser) {
1589 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1590 ($args{username}, $args{fullname}) );
1591 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1592 " FROM users WHERE username=?", undef, ($args{username}) );
1593 }
1594 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
1595 $self->{loguserid} = $tmpuser->{userid};
1596 $self->{logusername} = $tmpuser->{username};
1597 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
1598 return 1 if $tmpuser;
1599} # end initRPC()
1600
1601
1602## DNSDB::login()
1603# Takes a database handle, username and password
1604# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1605# password matches the one on file, and account is not disabled
1606# Returns undef otherwise
1607sub login {
1608 my $self = shift;
1609 my $dbh = $self->{dbh};
1610 my $user = shift;
1611 my $pass = shift;
1612
1613 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1614 " FROM users WHERE username=?",
1615 undef, ($user) );
1616 return if !$userinfo;
1617 return if !$userinfo->{status};
1618
1619 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1620 # native passwords (crypt-md5)
1621 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1622 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1623 # VegaDNS import (hex-coded MD5)
1624 return if $userinfo->{password} ne md5_hex($pass);
1625 } else {
1626 # plaintext (convenient now and then)
1627 return if $userinfo->{password} ne $pass;
1628 }
1629
1630 return $userinfo;
1631} # end login()
1632
1633
1634## DNSDB::initActionLog()
1635# Set up action logging. Takes a database handle and user ID
1636# Sets some internal globals and Does The Right Thing to set up a logging channel.
1637# This sets up _log() to spew out log entries to the defined channel without worrying
1638# about having to open a file or a syslog channel
1639##fixme Need to call _initActionLog_blah() for various logging channels, configured
1640# via dnsdb.conf, in $self->{log_channel} or something
1641# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1642sub initActionLog {
1643 my $self = shift;
1644 my $dbh = $self->{dbh};
1645 my $uid = shift;
1646
1647 return if !$uid;
1648
1649 # snag user info for logging. there's got to be a way to not have to pass this back
1650 # and forth from a caller, but web usage means no persistence we can rely on from
1651 # the server side.
1652 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1653 " FROM users WHERE user_id=?", undef, ($uid));
1654##fixme: errors are unpossible!
1655
1656 $self->{logusername} = $username;
1657 $self->{loguserid} = $uid;
1658 $self->{logfullname} = $fullname;
1659
1660 # convert to real check once we have other logging channels
1661 # if ($self->{log_channel} eq 'sql') {
1662 # Open Log, Sez Me!
1663 # }
1664
1665} # end initActionLog
1666
1667
1668## DNSDB::getPermissions()
1669# Get permissions from DB
1670# Requires DB handle, group or user flag, ID, and hashref.
1671sub getPermissions {
1672 my $self = shift;
1673 my $dbh = $self->{dbh};
1674
1675 my $type = shift;
1676 my $id = shift;
1677 my $hash = shift;
1678
1679 my $sql = qq(
1680 SELECT
1681 p.admin,p.self_edit,
1682 p.group_create,p.group_edit,p.group_delete,
1683 p.user_create,p.user_edit,p.user_delete,
1684 p.domain_create,p.domain_edit,p.domain_delete,
1685 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1686 p.location_create,p.location_edit,p.location_delete,p.location_view
1687 FROM permissions p
1688 );
1689 if ($type eq 'group') {
1690 $sql .= qq(
1691 JOIN groups g ON g.permission_id=p.permission_id
1692 WHERE g.group_id=?
1693 );
1694 } else {
1695 $sql .= qq(
1696 JOIN users u ON u.permission_id=p.permission_id
1697 WHERE u.user_id=?
1698 );
1699 }
1700
1701 my $sth = $dbh->prepare($sql);
1702
1703##fixme? we don't trap other plain SELECT errors
1704 $sth->execute($id);
1705
1706# my $permref = $sth->fetchrow_hashref;
1707# return $permref;
1708# $hash = $permref;
1709# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1710 ($hash->{admin},$hash->{self_edit},
1711 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1712 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1713 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1714 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1715 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1716 ) = $sth->fetchrow_array;
1717
1718} # end getPermissions()
1719
1720
1721## DNSDB::changePermissions()
1722# Update an ACL entry
1723# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1724sub changePermissions {
1725 my $self = shift;
1726 my $dbh = $self->{dbh};
1727 my $type = shift;
1728 my $id = shift;
1729 my $newperms = shift;
1730 my $inherit = shift || 0;
1731
1732 my $resultmsg = '';
1733
1734 # see if we're switching from inherited to custom. for bonus points,
1735 # snag the permid and parent permid anyway, since we'll need the permid
1736 # to set/alter custom perms, and both if we're switching from custom to
1737 # inherited.
1738 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1739 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1740 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1741 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1742 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1743 $sth->execute($id);
1744
1745 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1746
1747# hack phtoui
1748# group id 1 is "special" in that it's it's own parent (err... possibly.)
1749# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1750 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1751
1752 local $dbh->{AutoCommit} = 0;
1753 local $dbh->{RaiseError} = 1;
1754
1755 # Wrap all the SQL in a transaction
1756 eval {
1757 if ($inherit) {
1758
1759 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1760 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1761 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1762
1763 } else {
1764
1765 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1766##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1767# ... if'n'when we have groups with fully inherited permissions.
1768 # SQL is coo
1769 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1770 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1771 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1772 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1773 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1774 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1775 }
1776
1777 # and now set the permissions we were passed
1778 foreach (@permtypes) {
1779 if (defined ($newperms->{$_})) {
1780 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1781 }
1782 }
1783
1784 } # (inherited->)? custom
1785
1786 if ($type eq 'user') {
1787 $resultmsg = "Updated permissions for user $name";
1788 } else {
1789 $resultmsg = "Updated default permissions for group $name";
1790 }
1791 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
1792 $dbh->commit;
1793 }; # end eval
1794 if ($@) {
1795 my $msg = $@;
1796 eval { $dbh->rollback; };
1797 return ('FAIL',"Error changing permissions: $msg");
1798 }
1799
1800 return ('OK',$resultmsg);
1801} # end changePermissions()
1802
1803
1804## DNSDB::comparePermissions()
1805# Compare two permission hashes
1806# Returns '>', '<', '=', '!'
1807sub comparePermissions {
1808 my $self = shift;
1809 my $p1 = shift;
1810 my $p2 = shift;
1811
1812 my $retval = '='; # assume equality until proven otherwise
1813
1814 no warnings "uninitialized";
1815
1816 foreach (@permtypes) {
1817 next if $p1->{$_} == $p2->{$_}; # equal is good
1818 if ($p1->{$_} && !$p2->{$_}) {
1819 if ($retval eq '<') { # if we've already found an unequal pair where
1820 $retval = '!'; # $p2 has more access, and we now find a pair
1821 last; # where $p1 has more access, the overall access
1822 } # is neither greater or lesser, it's unequal.
1823 $retval = '>';
1824 }
1825 if (!$p1->{$_} && $p2->{$_}) {
1826 if ($retval eq '>') { # if we've already found an unequal pair where
1827 $retval = '!'; # $p1 has more access, and we now find a pair
1828 last; # where $p2 has more access, the overall access
1829 } # is neither greater or lesser, it's unequal.
1830 $retval = '<';
1831 }
1832 }
1833 return $retval;
1834} # end comparePermissions()
1835
1836
1837## DNSDB::changeGroup()
1838# Change group ID of an entity
1839# Takes a database handle, entity type, entity ID, and new group ID
1840sub changeGroup {
1841 my $self = shift;
1842 my $dbh = $self->{dbh};
1843 my $type = shift;
1844 my $id = shift;
1845 my $newgrp = shift;
1846
1847##fixme: fail on not enough args
1848 #return ('FAIL', "Missing
1849
1850 return ('FAIL', "Can't change the group of a $type")
1851 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1852
1853 # Collect some names for logging and messages
1854 my $entname;
1855 if ($type eq 'domain') {
1856 $entname = $self->domainName($id);
1857 } elsif ($type eq 'revzone') {
1858 $entname = $self->revName($id);
1859 } elsif ($type eq 'user') {
1860 $entname = $self->userFullName($id, '%u');
1861 } elsif ($type eq 'group') {
1862 $entname = $self->groupName($id);
1863 }
1864
1865 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1866 undef, ($id));
1867 my $oldgname = $self->groupName($oldgid);
1868 my $newgname = $self->groupName($newgrp);
1869
1870 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1871
1872 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1873
1874 # Allow transactions, and raise an exception on errors so we can catch it later.
1875 # Use local to make sure these get "reset" properly on exiting this block
1876 local $dbh->{AutoCommit} = 0;
1877 local $dbh->{RaiseError} = 1;
1878
1879 eval {
1880 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1881 # Log the change in both the old and new groups
1882 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
1883 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
1884 $dbh->commit;
1885 };
1886 if ($@) {
1887 my $msg = $@;
1888 eval { $dbh->rollback; };
1889 if ($self->{log_failures}) {
1890 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
1891 $dbh->commit; # since we enabled transactions earlier
1892 }
1893 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1894 }
1895
1896 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1897} # end changeGroup()
1898
1899
1900##
1901## Processing subs
1902##
1903
1904## DNSDB::addDomain()
1905# Add a domain
1906# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1907# and user info hash (for logging).
1908# Returns a status code and message
1909sub addDomain {
1910 $errstr = '';
1911 my $self = shift;
1912 my $dbh = $self->{dbh};
1913 my $domain = shift;
1914 return ('FAIL',"Domain must not be blank\n") if !$domain;
1915 my $group = shift;
1916 return ('FAIL',"Group must be specified\n") if !defined($group);
1917 my $state = shift;
1918 return ('FAIL',"Domain status must be specified\n") if !defined($state);
1919 my $defloc = shift || '';
1920
1921 $state = 1 if $state =~ /^active$/;
1922 $state = 1 if $state =~ /^on$/;
1923 $state = 0 if $state =~ /^inactive$/;
1924 $state = 0 if $state =~ /^off$/;
1925
1926 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1927
1928 $domain = lc($domain) if $self->{lowercase};
1929
1930 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1931
1932 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
1933 my $dom_id;
1934
1935# quick check to start to see if we've already got one
1936 $sth->execute($domain);
1937 ($dom_id) = $sth->fetchrow_array;
1938
1939 return ('FAIL', "Domain already exists") if $dom_id;
1940
1941 # Allow transactions, and raise an exception on errors so we can catch it later.
1942 # Use local to make sure these get "reset" properly on exiting this block
1943 local $dbh->{AutoCommit} = 0;
1944 local $dbh->{RaiseError} = 1;
1945
1946 # Wrap all the SQL in a transaction
1947 eval {
1948 # insert the domain...
1949 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,?,?)", undef,
1950 ($domain, $group, $state, $defloc));
1951
1952 # get the ID...
1953 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1954 undef, ($domain));
1955
1956 $self->_log(domain_id => $dom_id, group_id => $group,
1957 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
1958
1959 # ... and now we construct the standard records from the default set. NB: group should be variable.
1960 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1961 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl,location)".
1962 " VALUES ($dom_id,?,?,?,?,?,?,?,?)");
1963 $sth->execute($group);
1964 while (my ($host, $type, $val, $dist, $weight, $port, $ttl) = $sth->fetchrow_array()) {
1965 $host =~ s/DOMAIN/$domain/g;
1966 $val =~ s/DOMAIN/$domain/g;
1967 $sth_in->execute($host, $type, $val, $dist, $weight, $port, $ttl, $defloc);
1968 if ($typemap{$type} eq 'SOA') {
1969 my @tmp1 = split /:/, $host;
1970 my @tmp2 = split /:/, $val;
1971 $self->_log(domain_id => $dom_id, group_id => $group,
1972 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1973 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
1974 } else {
1975 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1976 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1977 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1978 $self->_log(domain_id => $dom_id, group_id => $group,
1979 entry => $logentry." $val', TTL $ttl");
1980 }
1981 }
1982
1983 # once we get here, we should have suceeded.
1984 $dbh->commit;
1985 }; # end eval
1986
1987 if ($@) {
1988 my $msg = $@;
1989 eval { $dbh->rollback; };
1990 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
1991 if $self->{log_failures};
1992 $dbh->commit; # since we enabled transactions earlier
1993 return ('FAIL',$msg);
1994 } else {
1995 return ('OK',$dom_id);
1996 }
1997} # end addDomain
1998
1999
2000## DNSDB::delZone()
2001# Delete a forward or reverse zone.
2002# Takes a database handle, zone ID, and forward/reverse flag.
2003# for now, just delete the records, then the domain.
2004# later we may want to archive it in some way instead (status code 2, for example?)
2005sub delZone {
2006 my $self = shift;
2007 my $dbh = $self->{dbh};
2008 my $zoneid = shift;
2009 my $revrec = shift;
2010
2011 # Allow transactions, and raise an exception on errors so we can catch it later.
2012 # Use local to make sure these get "reset" properly on exiting this block
2013 local $dbh->{AutoCommit} = 0;
2014 local $dbh->{RaiseError} = 1;
2015
2016 my $msg = '';
2017 my $failmsg = '';
2018 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
2019
2020 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
2021
2022 # Set this up here since we may use if if $self->{log_failures} is enabled
2023 my %loghash;
2024 $loghash{domain_id} = $zoneid if $revrec eq 'n';
2025 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
2026 $loghash{group_id} = $self->parentID(
2027 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
2028
2029 # Wrap all the SQL in a transaction
2030 eval {
2031 # Disentangle custom record types before removing the
2032 # ones that are only in the zone to be deleted
2033 if ($revrec eq 'n') {
2034 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2035 $failmsg = "Failure converting multizone types to single-zone";
2036 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2037 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2038 $sth->execute(65282, $zoneid, 65283);
2039 $sth->execute(65282, $zoneid, 65284);
2040 $failmsg = "Failure removing domain records";
2041 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2042 $failmsg = "Failure removing domain";
2043 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2044 } else {
2045 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2046 $failmsg = "Failure converting multizone types to single-zone";
2047 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2048 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2049# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2050# $sth->execute(65286?, $zoneid, 65283);
2051# $sth->execute(65286?, $zoneid, 65284);
2052 $failmsg = "Failure removing reverse records";
2053 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2054 $failmsg = "Failure removing reverse zone";
2055 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2056 }
2057
2058 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2059 $loghash{entry} = $msg;
2060 $self->_log(%loghash);
2061
2062 # once we get here, we should have suceeded.
2063 $dbh->commit;
2064 }; # end eval
2065
2066 if ($@) {
2067 $msg = $@;
2068 eval { $dbh->rollback; };
2069 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2070 if ($self->{log_failures}) {
2071 $self->_log(%loghash);
2072 $dbh->commit; # since we enabled transactions earlier
2073 }
2074 return ('FAIL', $loghash{entry});
2075 } else {
2076 return ('OK', $msg);
2077 }
2078
2079} # end delZone()
2080
2081
2082## DNSDB::domainName()
2083# Return the domain name based on a domain ID
2084# Takes a database handle and the domain ID
2085# Returns the domain name or undef on failure
2086sub domainName {
2087 $errstr = '';
2088 my $self = shift;
2089 my $dbh = $self->{dbh};
2090 my $domid = shift;
2091 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2092 $errstr = $DBI::errstr if !$domname;
2093 return $domname if $domname;
2094} # end domainName()
2095
2096
2097## DNSDB::revName()
2098# Return the reverse zone name based on an rDNS ID
2099# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2100# instead of the formal .arpa zone name
2101# Returns the reverse zone name or undef on failure
2102sub revName {
2103 $errstr = '';
2104 my $self = shift;
2105 my $dbh = $self->{dbh};
2106 my $revid = shift;
2107 my $cidrflag = shift || 'n';
2108 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2109 $errstr = $DBI::errstr if !$revname;
2110 my $tmp = new NetAddr::IP $revname;
2111 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2112 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2113 return $revname if $revname;
2114} # end revName()
2115
2116
2117## DNSDB::domainID()
2118# Takes a database handle and domain name
2119# Returns the domain ID number
2120sub domainID {
2121 $errstr = '';
2122 my $self = shift;
2123 my $dbh = $self->{dbh};
2124 my $domain = shift;
2125 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2126 undef, ($domain) );
2127 if (!$domid) {
2128 if ($dbh->err) {
2129 $errstr = $DBI::errstr;
2130 } else {
2131 $errstr = "Domain $domain not present";
2132 }
2133 }
2134 return $domid if $domid;
2135} # end domainID()
2136
2137
2138## DNSDB::revID()
2139# Takes a database handle and reverse zone name
2140# Returns the rDNS ID number
2141sub revID {
2142 $errstr = '';
2143 my $self = shift;
2144 my $dbh = $self->{dbh};
2145 my $revzone = shift;
2146 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2147 if (!$revid) {
2148 if ($dbh->err) {
2149 $errstr = $DBI::errstr;
2150 } else {
2151 $errstr = "Reverse zone $revzone not present";
2152 }
2153 }
2154 return $revid if $revid;
2155} # end revID()
2156
2157
2158## DNSDB::addRDNS
2159# Adds a reverse DNS zone
2160# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2161# and boolean(ish) state (active/inactive)
2162# Returns a status code and message
2163sub addRDNS {
2164 my $self = shift;
2165 my $dbh = $self->{dbh};
2166 my $zone = shift;
2167
2168 # Autodetect formal .arpa zones
2169 if ($zone =~ /\.arpa\.?$/) {
2170 my $code;
2171 ($code,$zone) = _zone2cidr($zone);
2172 return ('FAIL', $zone) if $code eq 'FAIL';
2173 }
2174 $zone = NetAddr::IP->new($zone);
2175
2176 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2177 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2178 my $group = shift;
2179 my $state = shift;
2180 my $defloc = shift || '';
2181
2182 $state = 1 if $state =~ /^active$/;
2183 $state = 1 if $state =~ /^on$/;
2184 $state = 0 if $state =~ /^inactive$/;
2185 $state = 0 if $state =~ /^off$/;
2186
2187 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2188
2189# quick check to start to see if we've already got one
2190 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2191
2192 return ('FAIL', "Zone already exists") if $rdns_id;
2193
2194 # Allow transactions, and raise an exception on errors so we can catch it later.
2195 # Use local to make sure these get "reset" properly on exiting this block
2196 local $dbh->{AutoCommit} = 0;
2197 local $dbh->{RaiseError} = 1;
2198
2199 my $warnstr = '';
2200 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2201 # wrong, we should have a value to override this anyway.
2202
2203 # Wrap all the SQL in a transaction
2204 eval {
2205 # insert the zone...
2206 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2207 ($zone, $group, $state, $defloc) );
2208
2209 # get the ID...
2210 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2211
2212 $self->_log(rdns_id => $rdns_id, group_id => $group,
2213 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2214
2215 # ... and now we construct the standard records from the default set. NB: group should be variable.
2216 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2217 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2218 " VALUES ($rdns_id,?,?,?,?,?,?)");
2219 $sth->execute($group);
2220 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2221 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2222 if ($zone->{isv6}) {
2223 next if ($type == 65280 || $type == 65283);
2224 } else {
2225 next if ($type == 65281 || $type == 65284);
2226 }
2227
2228 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2229
2230 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2231 # On failure, tack a note on to a warning string and continue without adding this record.
2232 # While we're at it, we substitute $zone for ZONE in the value.
2233 if ($val eq 'ZONE') {
2234 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2235 next if $revpatt && ($type == 65282 || $type == 65283);
2236##fixme? do we care if we have multiple whole-zone templates?
2237 $val = $zone->network;
2238 } elsif ($val =~ /ZONE/) {
2239 my $tmpval = $val;
2240 $tmpval =~ s/ZONE//;
2241 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2242 # as either v4 or v6. May make this an off-by-default config flag
2243 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2244 if ($type == 12 || $type == 65282) {
2245 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2246 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2247 }
2248 my $addr;
2249 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2250 $val = $addr->addr;
2251 } else {
2252 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2253 next;
2254 }
2255 }
2256
2257 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2258 # NS records get this substitution on the value instead.
2259 $host = _ZONE($zone, $host) if $type != 2;
2260
2261 # Fill in the forward domain ID if we can find it, otherwise:
2262 # Coerce type down to PTR or PTR template if we can't
2263 my $domid = 0;
2264 if ($type >= 65280) {
2265 if (!($domid = $self->_hostparent($host))) {
2266 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2267 $type = $reverse_typemap{PTR};
2268 $domid = 0; # just to be explicit.
2269 }
2270 }
2271
2272 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2273
2274 if ($typemap{$type} eq 'SOA') {
2275 my @tmp1 = split /:/, $host;
2276 my @tmp2 = split /:/, $val;
2277 $self->_log(rdns_id => $rdns_id, group_id => $group,
2278 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2279 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2280 $defttl = $tmp2[3];
2281 } else {
2282 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2283 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2284 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2285 }
2286 }
2287
2288 # Generate record based on provided pattern.
2289 if ($revpatt) {
2290 my $host;
2291 my $type = ($zone->{isv6} ? 65284 : 65283);
2292 my $val = $zone->network;
2293
2294 # Substitute $zone for ZONE in the hostname.
2295 $host = _ZONE($zone, $revpatt);
2296
2297 my $domid = 0;
2298 if (!($domid = $self->_hostparent($host))) {
2299 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2300 $type = 65282;
2301 $domid = 0; # just to be explicit.
2302 }
2303
2304 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2305 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2306 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2307 entry => $logentry." $val', TTL $defttl from pattern");
2308 }
2309
2310 # If there are warnings (presumably about default records skipped for cause) log them
2311 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2312 if $warnstr;
2313
2314 # once we get here, we should have suceeded.
2315 $dbh->commit;
2316 }; # end eval
2317
2318 if ($@) {
2319 my $msg = $@;
2320 eval { $dbh->rollback; };
2321 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2322 if $self->{log_failures};
2323 $dbh->commit; # since we enabled transactions earlier
2324 return ('FAIL',$msg);
2325 } else {
2326 my $retcode = 'OK';
2327 if ($warnstr) {
2328 $resultstr = $warnstr;
2329 $retcode = 'WARN';
2330 }
2331 return ($retcode, $rdns_id);
2332 }
2333
2334} # end addRDNS()
2335
2336
2337## DNSDB::getZoneCount
2338# Get count of zones in group or groups
2339# Takes a database handle and hash containing:
2340# - the "current" group
2341# - an array of "acceptable" groups
2342# - a flag for forward/reverse zones
2343# - Optionally accept a "starts with" and/or "contains" filter argument
2344# Returns an integer count of the resulting zone list.
2345sub getZoneCount {
2346 my $self = shift;
2347 my $dbh = $self->{dbh};
2348
2349 my %args = @_;
2350
2351 # Fail on bad curgroup argument. There's no sane fallback on this one.
2352 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2353 $errstr = "Bad or missing curgroup argument";
2354 return;
2355 }
2356 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2357 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2358 $errstr = "Bad childlist argument";
2359 return;
2360 }
2361
2362 my @filterargs;
2363 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2364 push @filterargs, "^$args{startwith}" if $args{startwith};
2365 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2366 push @filterargs, $args{filter} if $args{filter};
2367
2368 my $sql;
2369 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2370 if ($args{revrec} eq 'n') {
2371 $sql = "SELECT count(*) FROM domains".
2372 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2373 ($args{startwith} ? " AND domain ~* ?" : '').
2374 ($args{filter} ? " AND domain ~* ?" : '');
2375 } else {
2376 $sql = "SELECT count(*) FROM revzones".
2377 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2378 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2379# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2380 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2381 # we want to match both the formal and natural zone name
2382 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2383 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2384# } else {
2385# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2386# }
2387 }
2388 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2389 return $count;
2390} # end getZoneCount()
2391
2392
2393## DNSDB::getZoneList()
2394# Get a list of zones in the specified group(s)
2395# Takes the same arguments as getZoneCount() above
2396# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2397sub getZoneList {
2398 my $self = shift;
2399 my $dbh = $self->{dbh};
2400
2401 my %args = @_;
2402
2403 my @zonelist;
2404
2405 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2406 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2407
2408 # Fail on bad curgroup argument. There's no sane fallback on this one.
2409 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2410 $errstr = "Bad or missing curgroup argument";
2411 return;
2412 }
2413 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2414 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2415 $errstr = "Bad childlist argument";
2416 return;
2417 }
2418
2419 my @filterargs;
2420 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2421 push @filterargs, "^$args{startwith}" if $args{startwith};
2422 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2423 push @filterargs, $args{filter} if $args{filter};
2424
2425 my $sql;
2426 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2427 if ($args{revrec} eq 'n') {
2428 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2429 $sql = "SELECT domain_id AS zoneid,domain AS zone,status,groups.group_name AS group FROM domains".
2430 " INNER JOIN groups ON domains.group_id=groups.group_id".
2431 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2432 ($args{startwith} ? " AND domain ~* ?" : '').
2433 ($args{filter} ? " AND domain ~* ?" : '');
2434 } else {
2435##fixme: arguably startwith here is irrelevant. depends on the UI though.
2436 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2437 $sql = "SELECT rdns_id AS zoneid,revnet AS zone,status,groups.group_name AS group FROM revzones".
2438 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2439 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2440 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2441# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2442 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2443 # we want to match both the formal and natural zone name
2444 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2445 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2446# } else {
2447# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2448# }
2449 }
2450 # A common tail.
2451 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2452 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2453 " OFFSET ".$args{offset}*$self->{perpage});
2454
2455 my @working;
2456 my $zsth = $dbh->prepare($sql);
2457 $zsth->execute(@filterargs);
2458 while (my $zone = $zsth->fetchrow_hashref) {
2459 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2460 my $tmp = new NetAddr::IP $zone->{zone};
2461 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2462 }
2463 push @working, $zone;
2464 }
2465 return \@working;
2466} # end getZoneList()
2467
2468
2469## DNSDB::getZoneLocation()
2470# Retrieve the default location for a zone.
2471# Takes a database handle, forward/reverse flag, and zone ID
2472sub getZoneLocation {
2473 my $self = shift;
2474 my $dbh = $self->{dbh};
2475 my $revrec = shift;
2476 my $zoneid = shift;
2477
2478 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2479 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2480 undef, ($zoneid));
2481 return $loc;
2482} # end getZoneLocation()
2483
2484
2485## DNSDB::addGroup()
2486# Add a group
2487# Takes a database handle, group name, parent group, hashref for permissions,
2488# and optional template-vs-cloneme flag for the default records
2489# Returns a status code and message
2490sub addGroup {
2491 $errstr = '';
2492 my $self = shift;
2493 my $dbh = $self->{dbh};
2494 my $groupname = shift;
2495 my $pargroup = shift;
2496 my $permissions = shift;
2497
2498 # 0 indicates "custom", hardcoded.
2499 # Any other value clones that group's default records, if it exists.
2500 my $inherit = shift || 0;
2501##fixme: need a flag to indicate clone records or <?> ?
2502
2503 # Allow transactions, and raise an exception on errors so we can catch it later.
2504 # Use local to make sure these get "reset" properly on exiting this block
2505 local $dbh->{AutoCommit} = 0;
2506 local $dbh->{RaiseError} = 1;
2507
2508 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2509
2510 return ('FAIL', "Group already exists") if $group_id;
2511
2512 # Wrap all the SQL in a transaction
2513 eval {
2514 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2515
2516 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2517
2518 # We work through the whole set of permissions instead of specifying them so
2519 # that when we add a new permission, we don't have to change the code anywhere
2520 # that doesn't explicitly deal with that specific permission.
2521 my @permvals;
2522 foreach (@permtypes) {
2523 if (!defined ($permissions->{$_})) {
2524 push @permvals, 0;
2525 } else {
2526 push @permvals, $permissions->{$_};
2527 }
2528 }
2529 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2530 undef, ($groupid, @permvals) );
2531 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2532 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2533
2534 # Default records
2535 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2536 "VALUES ($groupid,?,?,?,?,?,?,?)");
2537 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2538 "VALUES ($groupid,?,?,?,?)");
2539 if ($inherit) {
2540 # Duplicate records from parent. Actually relying on inherited records feels
2541 # very fragile, and it would be problematic to roll over at a later time.
2542 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2543 $sth2->execute($pargroup);
2544 while (my @clonedata = $sth2->fetchrow_array) {
2545 $sthf->execute(@clonedata);
2546 }
2547 # And now the reverse records
2548 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2549 $sth2->execute($pargroup);
2550 while (my @clonedata = $sth2->fetchrow_array) {
2551 $sthr->execute(@clonedata);
2552 }
2553 } else {
2554##fixme: Hardcoding is Bad, mmmmkaaaay?
2555 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2556 # could load from a config file, but somewhere along the line we need hardcoded bits.
2557 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2558 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2559 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2560 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2561 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2562 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2563 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2564 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2565 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2566 }
2567
2568 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2569
2570 # once we get here, we should have suceeded.
2571 $dbh->commit;
2572 }; # end eval
2573
2574 if ($@) {
2575 my $msg = $@;
2576 eval { $dbh->rollback; };
2577 if ($self->{log_failures}) {
2578 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2579 $dbh->commit;
2580 }
2581 return ('FAIL',$msg);
2582 }
2583
2584 return ('OK','OK');
2585} # end addGroup()
2586
2587
2588## DNSDB::delGroup()
2589# Delete a group.
2590# Takes a group ID
2591# Returns a status code and message
2592sub delGroup {
2593 my $self = shift;
2594 my $dbh = $self->{dbh};
2595 my $groupid = shift;
2596
2597 # Allow transactions, and raise an exception on errors so we can catch it later.
2598 # Use local to make sure these get "reset" properly on exiting this block
2599 local $dbh->{AutoCommit} = 0;
2600 local $dbh->{RaiseError} = 1;
2601
2602##fixme: locate "knowable" error conditions and deal with them before the eval
2603# ... or inside, whatever.
2604# -> domains still exist in group
2605# -> ...
2606 my $failmsg = '';
2607 my $resultmsg = '';
2608
2609 # collect some pieces for logging and error messages
2610 my $groupname = $self->groupName($groupid);
2611 my $parid = $self->parentID(id => $groupid, type => 'group');
2612
2613 # Wrap all the SQL in a transaction
2614 eval {
2615 # Check for Things in the group
2616 $failmsg = "Can't remove group $groupname";
2617 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2618 die "$grpcnt groups still in group\n" if $grpcnt;
2619 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2620 die "$domcnt domains still in group\n" if $domcnt;
2621 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
2622 die "$revcnt reverse zones still in group\n" if $revcnt;
2623 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2624 die "$usercnt users still in group\n" if $usercnt;
2625
2626 $failmsg = "Failed to delete default records for $groupname";
2627 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2628 $failmsg = "Failed to delete default reverse records for $groupname";
2629 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2630 $failmsg = "Failed to remove group $groupname";
2631 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2632
2633 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
2634 $resultmsg = "Deleted group $groupname";
2635
2636 # once we get here, we should have suceeded.
2637 $dbh->commit;
2638 }; # end eval
2639
2640 if ($@) {
2641 my $msg = $@;
2642 eval { $dbh->rollback; };
2643 if ($self->{log_failures}) {
2644 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
2645 $dbh->commit; # since we enabled transactions earlier
2646 }
2647 return ('FAIL',"$failmsg: $msg");
2648 }
2649
2650 return ('OK',$resultmsg);
2651} # end delGroup()
2652
2653
2654## DNSDB::getChildren()
2655# Get a list of all groups whose parent^n is group <n>
2656# Takes a database handle, group ID, reference to an array to put the group IDs in,
2657# and an optional flag to return only immediate children or all children-of-children
2658# default to returning all children
2659# Calls itself
2660sub getChildren {
2661 $errstr = '';
2662 my $self = shift;
2663 my $dbh = $self->{dbh};
2664 my $rootgroup = shift;
2665 my $groupdest = shift;
2666 my $immed = shift || 'all';
2667
2668 # special break for default group; otherwise we get stuck.
2669 if ($rootgroup == 1) {
2670 # by definition, group 1 is the Root Of All Groups
2671 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2672 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2673 $sth->execute;
2674 while (my @this = $sth->fetchrow_array) {
2675 push @$groupdest, @this;
2676 }
2677 } else {
2678 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2679 $sth->execute($rootgroup);
2680 return if $sth->rows == 0;
2681 my @grouplist;
2682 while (my ($group) = $sth->fetchrow_array) {
2683 push @$groupdest, $group;
2684 $self->getChildren($group, $groupdest) if $immed eq 'all';
2685 }
2686 }
2687} # end getChildren()
2688
2689
2690## DNSDB::groupName()
2691# Return the group name based on a group ID
2692# Takes a database handle and the group ID
2693# Returns the group name or undef on failure
2694sub groupName {
2695 $errstr = '';
2696 my $self = shift;
2697 my $dbh = $self->{dbh};
2698 my $groupid = shift;
2699 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2700 $sth->execute($groupid);
2701 my ($groupname) = $sth->fetchrow_array();
2702 $errstr = $DBI::errstr if !$groupname;
2703 return $groupname if $groupname;
2704} # end groupName
2705
2706
2707## DNSDB::getGroupCount()
2708# Get count of subgroups in group or groups
2709# Takes a database handle and hash containing:
2710# - the "current" group
2711# - an array of "acceptable" groups
2712# - Optionally accept a "starts with" and/or "contains" filter argument
2713# Returns an integer count of the resulting group list.
2714sub getGroupCount {
2715 my $self = shift;
2716 my $dbh = $self->{dbh};
2717
2718 my %args = @_;
2719
2720 # Fail on bad curgroup argument. There's no sane fallback on this one.
2721 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2722 $errstr = "Bad or missing curgroup argument";
2723 return;
2724 }
2725 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2726 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2727 $errstr = "Bad childlist argument";
2728 return;
2729 }
2730
2731 my @filterargs;
2732 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2733 push @filterargs, "^$args{startwith}" if $args{startwith};
2734 push @filterargs, $args{filter} if $args{filter};
2735
2736 my $sql = "SELECT count(*) FROM groups ".
2737 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2738 ($args{startwith} ? " AND group_name ~* ?" : '').
2739 ($args{filter} ? " AND group_name ~* ?" : '');
2740 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2741 $errstr = $dbh->errstr if !$count;
2742 return $count;
2743} # end getGroupCount
2744
2745
2746## DNSDB::getGroupList()
2747# Get a list of sub^n-groups in the specified group(s)
2748# Takes the same arguments as getGroupCount() above
2749# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2750sub getGroupList {
2751 my $self = shift;
2752 my $dbh = $self->{dbh};
2753
2754 my %args = @_;
2755
2756 # Fail on bad curgroup argument. There's no sane fallback on this one.
2757 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2758 $errstr = "Bad or missing curgroup argument";
2759 return;
2760 }
2761 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2762 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2763 $errstr = "Bad childlist argument";
2764 return;
2765 }
2766
2767 my @filterargs;
2768 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2769 push @filterargs, "^$args{startwith}" if $args{startwith};
2770 push @filterargs, $args{filter} if $args{filter};
2771
2772 # protection against bad or missing arguments
2773 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2774 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
2775 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2776
2777 # munge sortby for columns in database
2778 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2779 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2780
2781 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
2782 FROM groups g
2783 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2784 ).
2785 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2786 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2787 ($args{filter} ? " AND g.group_name ~* ?" : '').
2788 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2789 " ORDER BY $args{sortby} $args{sortorder} ".
2790 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
2791 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2792 $errstr = $dbh->errstr if !$glist;
2793
2794 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
2795 # this means there's lots of crunching needed to trim the result set back down.
2796 # So instead we track the order of the groups, and push the counts into the
2797 # arrayref result separately.
2798##fixme: put this whole sub in a transaction? might be
2799# needed for accurate results on very busy systems.
2800##fixme: large group lists need prepared statements?
2801#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
2802#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
2803#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
2804 foreach (@{$glist}) {
2805 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
2806 $$_{nusers} = $ucnt;
2807 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
2808 $$_{ndomains} = $dcnt;
2809 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
2810 $$_{nrevzones} = $rcnt;
2811 }
2812
2813 return $glist;
2814} # end getGroupList
2815
2816
2817## DNSDB::groupID()
2818# Return the group ID based on the group name
2819# Takes a database handle and the group name
2820# Returns the group ID or undef on failure
2821sub groupID {
2822 $errstr = '';
2823 my $self = shift;
2824 my $dbh = $self->{dbh};
2825 my $group = shift;
2826 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
2827 $errstr = $DBI::errstr if !$grpid;
2828 return $grpid if $grpid;
2829} # end groupID()
2830
2831
2832## DNSDB::addUser()
2833# Add a user.
2834# Takes a DB handle, username, group ID, password, state (active/inactive).
2835# Optionally accepts:
2836# user type (user/admin) - defaults to user
2837# permissions string - defaults to inherit from group
2838# three valid forms:
2839# i - Inherit permissions
2840# c:<user_id> - Clone permissions from <user_id>
2841# C:<permission list> - Set these specific permissions
2842# first name - defaults to username
2843# last name - defaults to blank
2844# phone - defaults to blank (could put other data within column def)
2845# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2846sub addUser {
2847 $errstr = '';
2848 my $self = shift;
2849 my $dbh = $self->{dbh};
2850 my $username = shift;
2851 my $group = shift;
2852 my $pass = shift;
2853 my $state = shift;
2854
2855 return ('FAIL', "Missing one or more required entries") if !defined($state);
2856 return ('FAIL', "Username must not be blank") if !$username;
2857
2858 # Munge in some alternate state values
2859 $state = 1 if $state =~ /^active$/;
2860 $state = 1 if $state =~ /^on$/;
2861 $state = 0 if $state =~ /^inactive$/;
2862 $state = 0 if $state =~ /^off$/;
2863
2864 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2865
2866 my $permstring = shift || 'i'; # default is to inhert permissions from group
2867
2868 my $fname = shift || $username;
2869 my $lname = shift || '';
2870 my $phone = shift || ''; # not going format-check
2871
2872 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2873 my $user_id;
2874
2875# quick check to start to see if we've already got one
2876 $sth->execute($username);
2877 ($user_id) = $sth->fetchrow_array;
2878
2879 return ('FAIL', "User already exists") if $user_id;
2880
2881 # Allow transactions, and raise an exception on errors so we can catch it later.
2882 # Use local to make sure these get "reset" properly on exiting this block
2883 local $dbh->{AutoCommit} = 0;
2884 local $dbh->{RaiseError} = 1;
2885
2886 # Wrap all the SQL in a transaction
2887 eval {
2888 # insert the user... note we set inherited perms by default since
2889 # it's simple and cleans up some other bits of state
2890##fixme: need better handling of case of inherited or missing (!!) permissions entries
2891 my $sth = $dbh->prepare("INSERT INTO users ".
2892 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2893 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2894 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2895
2896 # get the ID...
2897 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2898
2899# Permissions! Gotta set'em all!
2900 die "Invalid permission string $permstring\n"
2901 if $permstring !~ /^(?:
2902 i # inherit
2903 |c:\d+ # clone
2904 # custom. no, the leading , is not a typo
2905 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
2906 )$/x;
2907# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2908 if ($permstring ne 'i') {
2909 # for cloned or custom permissions, we have to create a new permissions entry.
2910 my $clonesrc = $group;
2911 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2912 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2913 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2914 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2915 undef, ($user_id,$clonesrc) );
2916 $dbh->do("UPDATE users SET permission_id=".
2917 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2918 "WHERE user_id=?", undef, ($user_id, $user_id) );
2919 }
2920 if ($permstring =~ /^C:/) {
2921 # finally for custom permissions, we set the passed-in permissions (and unset
2922 # any that might have been brought in by the clone operation above)
2923 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2924 undef, ($user_id) );
2925 foreach (@permtypes) {
2926 if ($permstring =~ /,$_/) {
2927 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2928 } else {
2929 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2930 }
2931 }
2932 }
2933
2934 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2935
2936##fixme: add another table to hold name/email for log table?
2937
2938 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
2939 # once we get here, we should have suceeded.
2940 $dbh->commit;
2941 }; # end eval
2942
2943 if ($@) {
2944 my $msg = $@;
2945 eval { $dbh->rollback; };
2946 if ($self->{log_failures}) {
2947 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
2948 $dbh->commit; # since we enabled transactions earlier
2949 }
2950 return ('FAIL',"Error adding user $username: $msg");
2951 }
2952
2953 return ('OK',"User $username ($fname $lname) added");
2954} # end addUser
2955
2956
2957## DNSDB::getUserCount()
2958# Get count of users in group
2959# Takes a database handle and hash containing at least the current group, and optionally:
2960# - a reference list of secondary groups
2961# - a filter string
2962# - a "Starts with" string
2963sub getUserCount {
2964 my $self = shift;
2965 my $dbh = $self->{dbh};
2966
2967 my %args = @_;
2968
2969 # Fail on bad curgroup argument. There's no sane fallback on this one.
2970 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2971 $errstr = "Bad or missing curgroup argument";
2972 return;
2973 }
2974 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2975 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2976 $errstr = "Bad childlist argument";
2977 return;
2978 }
2979
2980 my @filterargs;
2981 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2982 push @filterargs, "^$args{startwith}" if $args{startwith};
2983 push @filterargs, $args{filter} if $args{filter};
2984
2985 my $sql = "SELECT count(*) FROM users ".
2986 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2987 ($args{startwith} ? " AND username ~* ?" : '').
2988 ($args{filter} ? " AND username ~* ?" : '');
2989 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2990 $errstr = $dbh->errstr if !$count;
2991 return $count;
2992} # end getUserCount()
2993
2994
2995## DNSDB::getUserList()
2996# Get list of users
2997# Takes the same arguments as getUserCount() above, plus optional:
2998# - sort field
2999# - sort order
3000# - offset/return-all-everything flag (defaults to $perpage records)
3001sub getUserList {
3002 my $self = shift;
3003 my $dbh = $self->{dbh};
3004
3005 my %args = @_;
3006
3007 # Fail on bad curgroup argument. There's no sane fallback on this one.
3008 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3009 $errstr = "Bad or missing curgroup argument";
3010 return;
3011 }
3012 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3013 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3014 $errstr = "Bad childlist argument";
3015 return;
3016 }
3017
3018 my @filterargs;
3019 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3020 push @filterargs, "^$args{startwith}" if $args{startwith};
3021 push @filterargs, $args{filter} if $args{filter};
3022
3023 # better to request sorts on "simple" names, but it means we need to map it to real columns
3024 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3025 fname => 'fname');
3026 $args{sortby} = $sortmap{$args{sortby}};
3027
3028 # protection against bad or missing arguments
3029 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3030 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3031 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3032
3033 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3034 "FROM users u ".
3035 "INNER JOIN groups g ON u.group_id=g.group_id ".
3036 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3037 ($args{startwith} ? " AND u.username ~* ?" : '').
3038 ($args{filter} ? " AND u.username ~* ?" : '').
3039 " AND NOT u.type = 'R' ".
3040 " ORDER BY $args{sortby} $args{sortorder} ".
3041 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3042 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3043 $errstr = $dbh->errstr if !$ulist;
3044 return $ulist;
3045} # end getUserList()
3046
3047
3048## DNSDB::getUserDropdown()
3049# Get a list of usernames for use in a dropdown menu.
3050# Takes a database handle, current group, and optional "tag this as selected" flag.
3051# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3052sub getUserDropdown {
3053 my $self = shift;
3054 my $dbh = $self->{dbh};
3055 my $grp = shift;
3056 my $sel = shift || 0;
3057
3058 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3059 $sth->execute($grp);
3060
3061 my @userlist;
3062 while (my ($username,$uid) = $sth->fetchrow_array) {
3063 my %row = (
3064 username => $username,
3065 uid => $uid,
3066 selected => ($sel == $uid ? 1 : 0)
3067 );
3068 push @userlist, \%row;
3069 }
3070 return \@userlist;
3071} # end getUserDropdown()
3072
3073
3074## DNSDB:: updateUser()
3075# Update general data about user
3076sub updateUser {
3077 my $self = shift;
3078 my $dbh = $self->{dbh};
3079
3080##fixme: tweak calling convention so that we can update any given bit of data
3081 my $uid = shift;
3082 my $username = shift;
3083 my $group = shift;
3084 my $pass = shift;
3085 my $state = shift;
3086 my $type = shift || 'u';
3087 my $fname = shift || $username;
3088 my $lname = shift || '';
3089 my $phone = shift || ''; # not going format-check
3090
3091 my $resultmsg = '';
3092
3093 # Munge in some alternate state values
3094 $state = 1 if $state =~ /^active$/;
3095 $state = 1 if $state =~ /^on$/;
3096 $state = 0 if $state =~ /^inactive$/;
3097 $state = 0 if $state =~ /^off$/;
3098
3099 # Allow transactions, and raise an exception on errors so we can catch it later.
3100 # Use local to make sure these get "reset" properly on exiting this block
3101 local $dbh->{AutoCommit} = 0;
3102 local $dbh->{RaiseError} = 1;
3103
3104 my $sth;
3105
3106 # Password can be left blank; if so we assume there's one on file.
3107 # Actual blank passwords are bad, mm'kay?
3108 if (!$pass) {
3109 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3110 } else {
3111 $pass = unix_md5_crypt($pass);
3112 }
3113
3114 eval {
3115 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3116 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3117 $resultmsg = "Updated user info for $username ($fname $lname)";
3118 $self->_log(group_id => $group, entry => $resultmsg);
3119 $dbh->commit;
3120 };
3121 if ($@) {
3122 my $msg = $@;
3123 eval { $dbh->rollback; };
3124 if ($self->{log_failures}) {
3125 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3126 $dbh->commit; # since we enabled transactions earlier
3127 }
3128 return ('FAIL',"Error updating user $username: $msg");
3129 }
3130
3131 return ('OK',$resultmsg);
3132} # end updateUser()
3133
3134
3135## DNSDB::delUser()
3136# Delete a user.
3137# Takes a database handle and user ID
3138# Returns a success/failure code and matching message
3139sub delUser {
3140 my $self = shift;
3141 my $dbh = $self->{dbh};
3142 my $userid = shift;
3143
3144 return ('FAIL',"Bad userid") if !defined($userid);
3145
3146 my $userdata = $self->getUserData($userid);
3147
3148 # Allow transactions, and raise an exception on errors so we can catch it later.
3149 # Use local to make sure these get "reset" properly on exiting this block
3150 local $dbh->{AutoCommit} = 0;
3151 local $dbh->{RaiseError} = 1;
3152
3153 eval {
3154 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3155 $self->_log(group_id => $userdata->{group_id},
3156 entry => "Deleted user ID $userid/".$userdata->{username}.
3157 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3158 $dbh->commit;
3159 };
3160 if ($@) {
3161 my $msg = $@;
3162 eval { $dbh->rollback; };
3163 if ($self->{log_failures}) {
3164 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3165 "$userid/".$userdata->{username}.": $msg");
3166 $dbh->commit;
3167 }
3168 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3169 }
3170
3171 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3172} # end delUser
3173
3174
3175## DNSDB::userFullName()
3176# Return a pretty string!
3177# Takes a user_id and optional printf-ish string to indicate which pieces where:
3178# %u for the username
3179# %f for the first name
3180# %l for the last name
3181# All other text in the passed string will be left as-is.
3182##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3183sub userFullName {
3184 $errstr = '';
3185 my $self = shift;
3186 my $dbh = $self->{dbh};
3187 my $userid = shift;
3188 my $fullformat = shift || '%f %l (%u)';
3189 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3190 $sth->execute($userid);
3191 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3192 $errstr = $DBI::errstr if !$uname;
3193
3194 $fullformat =~ s/\%u/$uname/g;
3195 $fullformat =~ s/\%f/$fname/g;
3196 $fullformat =~ s/\%l/$lname/g;
3197
3198 return $fullformat;
3199} # end userFullName
3200
3201
3202## DNSDB::userStatus()
3203# Sets and/or returns a user's status
3204# Takes a database handle, user ID and optionally a status argument
3205# Returns undef on errors.
3206sub userStatus {
3207 my $self = shift;
3208 my $dbh = $self->{dbh};
3209 my $id = shift;
3210 my $newstatus = shift || 'mu';
3211
3212 return undef if $id !~ /^\d+$/;
3213
3214 my $userdata = $self->getUserData($id);
3215
3216 # Allow transactions, and raise an exception on errors so we can catch it later.
3217 # Use local to make sure these get "reset" properly on exiting this block
3218 local $dbh->{AutoCommit} = 0;
3219 local $dbh->{RaiseError} = 1;
3220
3221 if ($newstatus ne 'mu') {
3222 # ooo, fun! let's see what we were passed for status
3223 eval {
3224 $newstatus = 0 if $newstatus eq 'useroff';
3225 $newstatus = 1 if $newstatus eq 'useron';
3226 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3227
3228 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3229 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3230
3231 my %loghash;
3232 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3233 $loghash{entry} = $resultstr;
3234 $self->_log(%loghash);
3235
3236 $dbh->commit;
3237 };
3238 if ($@) {
3239 my $msg = $@;
3240 eval { $dbh->rollback; };
3241 $resultstr = '';
3242 $errstr = $msg;
3243##fixme: failure logging?
3244 return;
3245 }
3246 }
3247
3248 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3249 return $status;
3250} # end userStatus()
3251
3252
3253## DNSDB::getUserData()
3254# Get misc user data for display
3255sub getUserData {
3256 my $self = shift;
3257 my $dbh = $self->{dbh};
3258 my $uid = shift;
3259
3260 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3261 "FROM users WHERE user_id=?");
3262 $sth->execute($uid);
3263 return $sth->fetchrow_hashref();
3264} # end getUserData()
3265
3266
3267## DNSDB::addLoc()
3268# Add a new location.
3269# Takes a database handle, group ID, short and long description, and a comma-separated
3270# list of IP addresses.
3271# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3272sub addLoc {
3273 my $self = shift;
3274 my $dbh = $self->{dbh};
3275 my $grp = shift;
3276 my $shdesc = shift;
3277 my $comments = shift;
3278 my $iplist = shift;
3279
3280 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3281 $comments = '' if !$comments;
3282 $iplist = '' if !$iplist;
3283
3284 my $loc;
3285
3286 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3287 # for now; 676 locations should satisfy all but the largest of the huge networks.
3288 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3289 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3290
3291# add just after "my $origloc = $loc;":
3292# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3293# # and wrap it around.
3294# # Yes, they skip a couple of possibles. No, I don't care.
3295# $loc = 'aA' if $loc eq 'zz';
3296# $loc = 'Aa' if $loc eq 'zZ';
3297# $loc = 'ZA' if $loc eq 'Zz';
3298# $loc = 'aa' if $loc eq 'ZZ';
3299
3300 # Allow transactions, and raise an exception on errors so we can catch it later.
3301 # Use local to make sure these get "reset" properly on exiting this block
3302 local $dbh->{AutoCommit} = 0;
3303 local $dbh->{RaiseError} = 1;
3304
3305##fixme: There is probably a far better way to do this. Sequential increments
3306# are marginally less stupid that pure random generation though, and the existence
3307# check makes sure we don't stomp on an imported one.
3308
3309 eval {
3310 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3311 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3312 ($loc) = ($loc =~ /^(..)/) if $loc;
3313 my $origloc = $loc;
3314 $loc = 'aa' if !$loc;
3315 # Make a change...
3316 $loc++;
3317 # ... and keep changing if it exists
3318 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3319 $loc++;
3320 ($loc) = ($loc =~ /^(..)/);
3321 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3322##fixme: really need to handle this case faster somehow
3323#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3324 }
3325 # And now we should have a unique location. tinydns fundamentally limits the
3326 # number of these but there's no doc on what characters are valid.
3327 $shdesc = $loc if !$shdesc;
3328 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3329 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3330 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3331 $dbh->commit;
3332 };
3333 if ($@) {
3334 my $msg = $@;
3335 eval { $dbh->rollback; };
3336 if ($self->{log_failures}) {
3337 $shdesc = $loc if !$shdesc;
3338 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3339 $dbh->commit;
3340 }
3341 return ('FAIL',$msg);
3342 }
3343
3344 return ('OK',$loc);
3345} # end addLoc()
3346
3347
3348## DNSDB::updateLoc()
3349# Update details of a location.
3350# Takes a database handle, location ID, group ID, short description,
3351# long comments/notes, and comma/space-separated IP list
3352# Returns a result code and message
3353sub updateLoc {
3354 my $self = shift;
3355 my $dbh = $self->{dbh};
3356 my $loc = shift;
3357 my $grp = shift;
3358 my $shdesc = shift;
3359 my $comments = shift;
3360 my $iplist = shift;
3361
3362 $shdesc = '' if !$shdesc;
3363 $comments = '' if !$comments;
3364 $iplist = '' if !$iplist;
3365
3366 # Allow transactions, and raise an exception on errors so we can catch it later.
3367 # Use local to make sure these get "reset" properly on exiting this block
3368 local $dbh->{AutoCommit} = 0;
3369 local $dbh->{RaiseError} = 1;
3370
3371 my $oldloc = $self->getLoc($loc);
3372 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3373
3374 eval {
3375 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3376 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3377 $self->_log(entry => $okmsg);
3378 $dbh->commit;
3379 };
3380 if ($@) {
3381 my $msg = $@;
3382 eval { $dbh->rollback; };
3383 if ($self->{log_failures}) {
3384 $shdesc = $loc if !$shdesc;
3385 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3386 $dbh->commit;
3387 }
3388 return ('FAIL',$msg);
3389 }
3390
3391 return ('OK',$okmsg);
3392} # end updateLoc()
3393
3394
3395## DNSDB::delLoc()
3396sub delLoc {
3397 my $self = shift;
3398 my $dbh = $self->{dbh};
3399 my $loc = shift;
3400
3401 # Allow transactions, and raise an exception on errors so we can catch it later.
3402 # Use local to make sure these get "reset" properly on exiting this block
3403 local $dbh->{AutoCommit} = 0;
3404 local $dbh->{RaiseError} = 1;
3405
3406 my $oldloc = $self->getLoc($loc);
3407 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3408 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3409
3410 eval {
3411 # Check for records with this location first. Deleting a location without deleting records
3412 # tagged for that location will render them unpublished without other warning.
3413 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3414 die "Records still exist in location $olddesc\n" if $r;
3415 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3416 $self->_log(entry => $okmsg);
3417 $dbh->commit;
3418 };
3419 if ($@) {
3420 my $msg = $@;
3421 eval { $dbh->rollback; };
3422 if ($self->{log_failures}) {
3423 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3424 $dbh->commit;
3425 }
3426 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3427 }
3428
3429 return ('OK',$okmsg);
3430} # end delLoc()
3431
3432
3433## DNSDB::getLoc()
3434# Get details about a location/view
3435# Takes a database handle and location ID.
3436# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3437sub getLoc {
3438 my $self = shift;
3439 my $dbh = $self->{dbh};
3440 my $loc = shift;
3441
3442 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3443 $sth->execute($loc);
3444 return $sth->fetchrow_hashref();
3445} # end getLoc()
3446
3447
3448## DNSDB::getLocCount()
3449# Get count of locations/views
3450# Takes a database handle and hash containing at least the current group, and optionally:
3451# - a reference list of secondary groups
3452# - a filter string
3453# - a "Starts with" string
3454sub getLocCount {
3455 my $self = shift;
3456 my $dbh = $self->{dbh};
3457
3458 my %args = @_;
3459
3460 # Fail on bad curgroup argument. There's no sane fallback on this one.
3461 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3462 $errstr = "Bad or missing curgroup argument";
3463 return;
3464 }
3465 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3466 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3467 $errstr = "Bad childlist argument";
3468 return;
3469 }
3470
3471 my @filterargs;
3472 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3473 push @filterargs, "^$args{startwith}" if $args{startwith};
3474 push @filterargs, $args{filter} if $args{filter};
3475
3476 my $sql = "SELECT count(*) FROM locations ".
3477 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3478 ($args{startwith} ? " AND description ~* ?" : '').
3479 ($args{filter} ? " AND description ~* ?" : '');
3480 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3481 $errstr = $dbh->errstr if !$count;
3482 return $count;
3483} # end getLocCount()
3484
3485
3486## DNSDB::getLocList()
3487sub getLocList {
3488 my $self = shift;
3489 my $dbh = $self->{dbh};
3490
3491 my %args = @_;
3492
3493 # Fail on bad curgroup argument. There's no sane fallback on this one.
3494 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3495 $errstr = "Bad or missing curgroup argument";
3496 return;
3497 }
3498 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3499 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3500 $errstr = "Bad childlist argument";
3501 return;
3502 }
3503
3504 my @filterargs;
3505 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3506 push @filterargs, "^$args{startwith}" if $args{startwith};
3507 push @filterargs, $args{filter} if $args{filter};
3508
3509 # better to request sorts on "simple" names, but it means we need to map it to real columns
3510# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3511# fname => 'fname');
3512# $args{sortby} = $sortmap{$args{sortby}};
3513
3514 # protection against bad or missing arguments
3515 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3516 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3517 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3518
3519 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3520 "FROM locations l ".
3521 "INNER JOIN groups g ON l.group_id=g.group_id ".
3522 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3523 ($args{startwith} ? " AND l.description ~* ?" : '').
3524 ($args{filter} ? " AND l.description ~* ?" : '').
3525 " ORDER BY $args{sortby} $args{sortorder} ".
3526 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3527 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3528 $errstr = $dbh->errstr if !$ulist;
3529 return $ulist;
3530} # end getLocList()
3531
3532
3533## DNSDB::getLocDropdown()
3534# Get a list of location names for use in a dropdown menu.
3535# Takes a database handle, current group, and optional "tag this as selected" flag.
3536# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3537sub getLocDropdown {
3538 my $self = shift;
3539 my $dbh = $self->{dbh};
3540 my $grp = shift;
3541 my $sel = shift || '';
3542
3543 my $sth = $dbh->prepare(qq(
3544 SELECT description,location FROM locations
3545 WHERE group_id=?
3546 ORDER BY description
3547 ) );
3548 $sth->execute($grp);
3549
3550 my @loclist;
3551 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3552 while (my ($locname, $loc) = $sth->fetchrow_array) {
3553 my %row = (
3554 locname => $locname,
3555 loc => $loc,
3556 selected => ($sel eq $loc ? 1 : 0)
3557 );
3558 push @loclist, \%row;
3559 }
3560 return \@loclist;
3561} # end getLocDropdown()
3562
3563
3564## DNSDB::getSOA()
3565# Return all suitable fields from an SOA record in separate elements of a hash
3566# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3567sub getSOA {
3568 $errstr = '';
3569 my $self = shift;
3570 my $dbh = $self->{dbh};
3571 my $def = shift;
3572 my $rev = shift;
3573 my $id = shift;
3574
3575 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3576 # - should really attach serial to the zone parent somewhere
3577
3578 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3579 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3580 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3581 return if !$ret;
3582##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3583
3584 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3585 delete $ret->{host};
3586 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3587 delete $ret->{val};
3588
3589 return $ret;
3590} # end getSOA()
3591
3592
3593## DNSDB::updateSOA()
3594# Update the specified SOA record
3595# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3596# Returns a two-element list with a result code and message
3597sub updateSOA {
3598 my $self = shift;
3599 my $dbh = $self->{dbh};
3600 my $defrec = shift;
3601 my $revrec = shift;
3602
3603 my %soa = @_;
3604
3605 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
3606
3607 my $msg;
3608 my %logdata;
3609 if ($defrec eq 'n') {
3610 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3611 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3612 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
3613 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
3614 } else {
3615 $logdata{group_id} = $soa{id};
3616 }
3617 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
3618 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
3619
3620 # Allow transactions, and raise an exception on errors so we can catch it later.
3621 # Use local to make sure these get "reset" properly on exiting this block
3622 local $dbh->{AutoCommit} = 0;
3623 local $dbh->{RaiseError} = 1;
3624
3625 eval {
3626 if (!$oldsoa) {
3627 # old SOA record is missing for some reason. create a new one.
3628 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
3629 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
3630 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
3631 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
3632 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
3633 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3634 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3635 } else {
3636 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3637 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3638 $soa{ttl}, $oldsoa->{record_id}) );
3639 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3640 "SOA for $parname: ".
3641 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3642 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3643 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3644 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3645 }
3646 $logdata{entry} = $msg;
3647 $self->_log(%logdata);
3648
3649 $dbh->commit;
3650 };
3651 if ($@) {
3652 $msg = $@;
3653 eval { $dbh->rollback; };
3654 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3655 "SOA record for $parname: $msg";
3656 if ($self->{log_failures}) {
3657 $self->_log(%logdata);
3658 $dbh->commit;
3659 }
3660 return ('FAIL', $logdata{entry});
3661 } else {
3662 return ('OK', $msg);
3663 }
3664} # end updateSOA()
3665
3666
3667## DNSDB::getRecLine()
3668# Return all data fields for a zone record in separate elements of a hash
3669# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3670sub getRecLine {
3671 $errstr = '';
3672 my $self = shift;
3673 my $dbh = $self->{dbh};
3674 my $defrec = shift;
3675 my $revrec = shift;
3676 my $id = shift;
3677
3678##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
3679 my $sql = "SELECT record_id,host,type,val,ttl".
3680 ($defrec eq 'n' ? ',location' : '').
3681 ($revrec eq 'n' ? ',distance,weight,port' : '').
3682 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
3683 _rectable($defrec,$revrec)." WHERE record_id=?";
3684 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3685
3686 if ($dbh->err) {
3687 $errstr = $DBI::errstr;
3688 return undef;
3689 }
3690
3691 if (!$ret) {
3692 $errstr = "No such record";
3693 return undef;
3694 }
3695
3696 # explicitly set a parent id
3697 if ($defrec eq 'y') {
3698 $ret->{parid} = $ret->{group_id};
3699 } else {
3700 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3701 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3702 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3703 }
3704 $ret->{address} = $ret->{val}; # because.
3705
3706 return $ret;
3707}
3708
3709
3710##fixme: should use above (getRecLine()) to get lines for below?
3711## DNSDB::getRecList()
3712# Return records for a group or zone
3713# Takes a default/live flag, group or zone ID, start,
3714# number of records, sort field, and sort order
3715# Returns a reference to an array of hashes
3716sub getRecList {
3717 $errstr = '';
3718 my $self = shift;
3719 my $dbh = $self->{dbh};
3720
3721 my %args = @_;
3722
3723 # protection against bad or missing arguments
3724 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3725 my $defsort;
3726 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
3727 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
3728 $args{sortby} = '' if !$args{sortby};
3729 $args{sortby} = $defsort if !$args{revrec};
3730 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
3731 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3732 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
3733
3734 # sort reverse zones on IP, correctly
3735 # do other fiddling with $args{sortby} while we're at it.
3736 # whee! multisort means just passing comma-separated fields in sortby!
3737 my $newsort = '';
3738 foreach my $sf (split /,/, $args{sortby}) {
3739 $sf = "r.$sf";
3740 $sf =~ s/r\.val/inetlazy(r.val)/
3741 if $args{revrec} eq 'y' && $args{defrec} eq 'n';
3742 $sf =~ s/r\.type/t.alphaorder/;
3743 $newsort .= ",$sf";
3744 }
3745 $newsort =~ s/^,//;
3746
3747 my @bindvars = ($args{id});
3748 push @bindvars, ($args{filter},$args{filter}) if $args{filter};
3749
3750##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
3751 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3752 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
3753 if $args{defrec} eq 'n';
3754 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
3755 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
3756 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3757 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
3758 $sql .= "WHERE "._recparent($args{defrec},$args{revrec})." = ?";
3759 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3760# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
3761 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
3762 # we want to match both the formal and natural zone name
3763 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)" if $args{filter};
3764 my $tmp = join('.',reverse(split(/\./,$args{filter})));
3765 push @bindvars, ($tmp, $tmp) if $args{filter};
3766# } else {
3767# $sql .= " AND (r.host ~* ? OR r.val ~* ?)" if $args{filter};
3768# }
3769 $sql .= " ORDER BY $newsort $args{sortorder}";
3770 # ensure consistent ordering by sorting on record_id too
3771 $sql .= ", record_id $args{sortorder}";
3772 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
3773
3774 my @working;
3775 my $recsth = $dbh->prepare($sql);
3776 $recsth->execute(@bindvars);
3777 while (my $rec = $recsth->fetchrow_hashref) {
3778 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
3779 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
3780 $rec->{val} !~ /\.arpa$/ ) {
3781 # skip all reverse zone .arpa "hostnames" since they're already .arpa names.
3782##enhance: extend {showrev_arpa} eq 'record' to specify record types
3783 my $tmpip = new NetAddr::IP $rec->{val};
3784 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
3785 }
3786 push @working, $rec;
3787 }
3788 return \@working;
3789} # end getRecList()
3790
3791
3792## DNSDB::getRecCount()
3793# Return count of non-SOA records in zone (or default records in a group)
3794# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3795# and optional filtering modifier
3796# Returns the count
3797sub getRecCount {
3798 my $self = shift;
3799 my $dbh = $self->{dbh};
3800 my $defrec = shift;
3801 my $revrec = shift;
3802 my $id = shift;
3803 my $filter = shift || '';
3804
3805 # keep the nasties down, since we can't ?-sub this bit. :/
3806 # note this is chars allowed in DNS hostnames
3807 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3808
3809 my @bindvars = ($id);
3810 push @bindvars, ($filter,$filter) if $filter;
3811 my $sql = "SELECT count(*) FROM ".
3812 _rectable($defrec,$revrec).
3813 " WHERE "._recparent($defrec,$revrec)."=? ".
3814 "AND NOT type=$reverse_typemap{SOA}";
3815# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
3816 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
3817 # we want to match both the formal and natural zone name
3818 $sql .= " AND (host ~* ? OR val ~* ? OR host ~* ? OR val ~* ?)" if $filter;
3819 my $tmp = join('.',reverse(split(/\./,$filter)));
3820 push @bindvars, ($tmp, $tmp) if $filter;
3821# } else {
3822# $sql .= " AND (host ~* ? OR val ~* ?)" if $filter;
3823# }
3824
3825 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3826
3827 return $count;
3828
3829} # end getRecCount()
3830
3831
3832## DNSDB::addRec()
3833# Add a new record to a domain or a group's default records
3834# Takes a database handle, default/live flag, group/domain ID,
3835# host, type, value, and TTL
3836# Some types require additional detail: "distance" for MX and SRV,
3837# and weight/port for SRV
3838# Returns a status code and detail message in case of error
3839##fixme: pass a hash with the record data, not a series of separate values
3840sub addRec {
3841 $errstr = '';
3842 my $self = shift;
3843 my $dbh = $self->{dbh};
3844 my $defrec = shift;
3845 my $revrec = shift;
3846 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3847 # domain_id for domain records)
3848
3849 my $host = shift;
3850 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3851 my $val = shift;
3852 my $ttl = shift;
3853 my $location = shift;
3854 $location = '' if !$location;
3855
3856 my $expires = shift;
3857 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
3858 $expires = 0 if $expires eq 'after';
3859 my $stamp = shift;
3860 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
3861
3862 # Spaces are evil.
3863 $$host =~ s/^\s+//;
3864 $$host =~ s/\s+$//;
3865 if ($typemap{$$rectype} ne 'TXT') {
3866 # Leading or trailng spaces could be legit in TXT records.
3867 $$val =~ s/^\s+//;
3868 $$val =~ s/\s+$//;
3869 }
3870
3871 if ($self->{lowercase}) {
3872 if ($typemap{$$rectype} ne 'TXT') {
3873 $$host = lc($$host);
3874 $$val = lc($$val);
3875 } else {
3876 # TXT records should preserve user entry in the string.
3877 if ($revrec eq 'n') {
3878 $$host = lc($$host);
3879 } else {
3880 $$val = lc($$val);
3881 }
3882 }
3883 }
3884
3885 # prep for validation
3886 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
3887 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3888
3889 my $domid = 0;
3890 my $revid = 0;
3891
3892 my $retcode = 'OK'; # assume everything will go OK
3893 my $retmsg = '';
3894
3895 # do simple validation first
3896 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
3897
3898 # Quick check on hostname parts. There are enough variations to justify a sub now.
3899 return ('FAIL', $errstr) if ! _check_hostname_form($$host, $$rectype, $defrec, $revrec);
3900
3901 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3902 my $dist = shift;
3903 my $weight = shift;
3904 my $port = shift;
3905
3906 my $fields;
3907 my @vallist;
3908
3909 # Call the validation sub for the type requested.
3910 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
3911 host => $host, rectype => $rectype, val => $val, addr => $addr,
3912 dist => \$dist, port => \$port, weight => \$weight,
3913 fields => \$fields, vallist => \@vallist);
3914
3915 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3916
3917 # Set up database fields and bind parameters
3918 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3919 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3920
3921 if ($defrec eq 'n') {
3922 # locations are not for default records, silly coder!
3923 $fields .= ",location";
3924 push @vallist, $location;
3925 # timestamps are rare.
3926 if ($stamp) {
3927 $fields .= ",stamp,expires,stampactive";
3928 push @vallist, $stamp, $expires, 'y';
3929 } else {
3930 $fields .= ",stampactive";
3931 push @vallist, 'n';
3932 }
3933 }
3934
3935 # a little magic to get the right number of ? placeholders based on how many values we're providing
3936 my $vallen = '?'.(',?'x$#vallist);
3937
3938 # Put together the success log entry. We have to use this horrible kludge
3939 # because domain_id and rdns_id may or may not be present, and if they are,
3940 # they're not at a guaranteed consistent index in the array. wheee!
3941 my %logdata;
3942 my @ftmp = split /,/, $fields;
3943 for (my $i=0; $i <= $#vallist; $i++) {
3944 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3945 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3946 }
3947 $logdata{group_id} = $id if $defrec eq 'y';
3948 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
3949 if $defrec eq 'n';
3950 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3951 # NS records for revzones get special treatment
3952 if ($revrec eq 'y' && $$rectype == 2) {
3953 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3954 } else {
3955 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3956 }
3957
3958 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3959 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3960 if $typemap{$$rectype} eq 'SRV';
3961 $logdata{entry} .= "', TTL $ttl";
3962 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
3963 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
3964
3965 # Allow transactions, and raise an exception on errors so we can catch it later.
3966 # Use local to make sure these get "reset" properly on exiting this block
3967 local $dbh->{AutoCommit} = 0;
3968 local $dbh->{RaiseError} = 1;
3969
3970 eval {
3971 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3972 undef, @vallist);
3973 $self->_log(%logdata);
3974 $dbh->commit;
3975 };
3976 if ($@) {
3977 my $msg = $@;
3978 eval { $dbh->rollback; };
3979 if ($self->{log_failures}) {
3980 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3981 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3982 $self->_log(%logdata);
3983 $dbh->commit;
3984 }
3985 return ('FAIL',$msg);
3986 }
3987
3988 $resultstr = $logdata{entry};
3989 return ($retcode, $retmsg);
3990
3991} # end addRec()
3992
3993
3994## DNSDB::updateRec()
3995# Update a record
3996# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3997# Returns a status code and message
3998sub updateRec {
3999 $errstr = '';
4000
4001 my $self = shift;
4002 my $dbh = $self->{dbh};
4003 my $defrec = shift;
4004 my $revrec = shift;
4005 my $id = shift;
4006 my $parid = shift; # immediate parent entity that we're descending from to update the record
4007
4008 # all records have these
4009 my $host = shift;
4010 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
4011 my $rectype = shift;
4012 my $val = shift;
4013 my $ttl = shift;
4014 my $location = shift; # may be empty/null/undef depending on caller
4015 $location = '' if !$location;
4016
4017 my $expires = shift;
4018 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4019 $expires = 0 if $expires eq 'after';
4020 my $stamp = shift;
4021 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4022
4023 # just set it to an empty string; failures will be caught later.
4024 $$host = '' if !$$host;
4025
4026 # Spaces are evil.
4027 $$host =~ s/^\s+//;
4028 $$host =~ s/\s+$//;
4029 if ($typemap{$$rectype} ne 'TXT') {
4030 # Leading or trailng spaces could be legit in TXT records.
4031 $$val =~ s/^\s+//;
4032 $$val =~ s/\s+$//;
4033 }
4034
4035 if ($self->{lowercase}) {
4036 if ($typemap{$$rectype} ne 'TXT') {
4037 $$host = lc($$host);
4038 $$val = lc($$val);
4039 } else {
4040 # TXT records should preserve user entry in the string.
4041 if ($revrec eq 'n') {
4042 $$host = lc($$host);
4043 } else {
4044 $$val = lc($$val);
4045 }
4046 }
4047 }
4048
4049 # prep for validation
4050 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4051 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4052
4053 my $domid = 0;
4054 my $revid = 0;
4055
4056 my $retcode = 'OK'; # assume everything will go OK
4057 my $retmsg = '';
4058
4059 # do simple validation first
4060 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4061
4062 # Quick check on hostname parts. There are enough variations to justify a sub now.
4063 return ('FAIL', $errstr) if ! _check_hostname_form($$host, $$rectype, $defrec, $revrec);
4064
4065 # only MX and SRV will use these
4066 my $dist = shift || 0;
4067 my $weight = shift || 0;
4068 my $port = shift || 0;
4069
4070 my $fields;
4071 my @vallist;
4072
4073 # get old record data so we have the right parent ID
4074 # and for logging (eventually)
4075 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4076
4077 # Call the validation sub for the type requested.
4078 # Note the ID to pass here is the *parent*, not the record
4079 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4080 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4081 host => $host, rectype => $rectype, val => $val, addr => $addr,
4082 dist => \$dist, port => \$port, weight => \$weight,
4083 fields => \$fields, vallist => \@vallist,
4084 update => $id);
4085
4086 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4087
4088 # Set up database fields and bind parameters. Note only the optional fields
4089 # (distance, weight, port, secondary parent ID) are added in the validation call above
4090 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4091 push @vallist, ($$host,$$rectype,$$val,$ttl,
4092 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4093
4094 if ($defrec eq 'n') {
4095 # locations are not for default records, silly coder!
4096 $fields .= ",location";
4097 push @vallist, $location;
4098 # timestamps are rare.
4099 if ($stamp) {
4100 $fields .= ",stamp,expires,stampactive";
4101 push @vallist, $stamp, $expires, 'y';
4102 } else {
4103 $fields .= ",stampactive";
4104 push @vallist, 'n';
4105 }
4106 }
4107
4108 # hack hack PTHUI
4109 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4110 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4111 # needed for crossover types that got coerced down to "standard" types due to data changes
4112 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4113 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4114 if ($$rectype == $reverse_typemap{PTR}) {
4115 $fields .= ",domain_id";
4116 push @vallist, 0;
4117 }
4118 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4119 $fields .= ",rdns_id";
4120 push @vallist, 0;
4121 }
4122 }
4123 # fix fat-finger-originated record type changes
4124 if ($$rectype == 65285) { # delegation
4125 $fields .= ",rdns_id" if $revrec eq 'n';
4126 $fields .= ",domain_id" if $revrec eq 'y';
4127 push @vallist, 0;
4128 }
4129 # ... and now make sure we *do* associate a record with the "calling" parent
4130 if ($defrec eq 'n') {
4131 $domid = $parid if $revrec eq 'n';
4132 $revid = $parid if $revrec eq 'y';
4133 }
4134
4135 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4136 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4137 # will be maintained (due to "not-in-zone" validation changes)
4138 my %logdata;
4139 $logdata{domain_id} = $domid;
4140 $logdata{rdns_id} = $revid;
4141 my @ftmp = split /,/, $fields;
4142 for (my $i=0; $i <= $#vallist; $i++) {
4143 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4144 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4145 }
4146 $logdata{group_id} = $parid if $defrec eq 'y';
4147 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4148 if $defrec eq 'n';
4149 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4150 # NS records for revzones get special treatment
4151 if ($revrec eq 'y' && $$rectype == 2) {
4152 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4153 } else {
4154 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4155 }
4156 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4157 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4158 if $typemap{$oldrec->{type}} eq 'SRV';
4159 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4160 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4161 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4162 if $oldrec->{stampactive};
4163 $logdata{entry} .= "\nto\n";
4164 # More NS special
4165 if ($revrec eq 'y' && $$rectype == 2) {
4166 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4167 } else {
4168 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4169 }
4170 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4171 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4172 $logdata{entry} .= "', TTL $ttl";
4173 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4174 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
4175
4176 local $dbh->{AutoCommit} = 0;
4177 local $dbh->{RaiseError} = 1;
4178
4179 # Fiddle the field list into something suitable for updates
4180 $fields =~ s/,/=?,/g;
4181 $fields .= "=?";
4182
4183 eval {
4184 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4185 $self->_log(%logdata);
4186 $dbh->commit;
4187 };
4188 if ($@) {
4189 my $msg = $@;
4190 eval { $dbh->rollback; };
4191 if ($self->{log_failures}) {
4192 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4193 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4194 $self->_log(%logdata);
4195 $dbh->commit;
4196 }
4197 return ('FAIL', $msg);
4198 }
4199
4200 $resultstr = $logdata{entry};
4201 return ($retcode, $retmsg);
4202} # end updateRec()
4203
4204
4205## DNSDB::downconvert()
4206# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4207# to a compatible component type. Only a handful of operations are valid, anything
4208# else is a null-op.
4209# Takes the record ID and the new type. Returns boolean.
4210sub downconvert {
4211 my $self = shift;
4212 my $dbh = $self->{dbh};
4213 my $recid = shift;
4214 my $newtype = shift;
4215
4216 # also, only work on live records; little to no value trying to do this on default records.
4217 my $rec = $self->getRecLine('n', 'y', $recid);
4218
4219 # hm?
4220 #return 1 if !$rec;
4221
4222 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4223 return 1 if $rec->{type} == 65282; # Nowhere to go
4224
4225 my $delpar;
4226 my @sqlargs;
4227 if ($rec->{type} == 65280) {
4228 return 1 if $newtype != 1 && $newtype != 12;
4229 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4230 push @sqlargs, 0, $newtype, $recid;
4231 } elsif ($rec->{type} == 65281) {
4232 return 1 if $newtype != 28 && $newtype != 12;
4233 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4234 push @sqlargs, 0, $newtype, $recid;
4235 } elsif ($rec->{type} == 65283) {
4236 return 1 if $newtype != 65282;
4237 $delpar = 'rdns_id';
4238 } elsif ($rec->{type} == 65284) {
4239 return 1 if $newtype != 65282;
4240 $delpar = 'rdns_id';
4241 } else {
4242 # Your llama is on fire.
4243 }
4244
4245 local $dbh->{AutoCommit} = 0;
4246 local $dbh->{RaiseError} = 1;
4247
4248 eval {
4249 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4250 $dbh->commit;
4251 };
4252 if ($@) {
4253 $errstr = $@;
4254 eval { $dbh->rollback; };
4255 return 0;
4256 }
4257 return 1;
4258} # end downconvert()
4259
4260
4261## DNSDB::delRec()
4262# Delete a record.
4263sub delRec {
4264 $errstr = '';
4265 my $self = shift;
4266 my $dbh = $self->{dbh};
4267 my $defrec = shift;
4268 my $revrec = shift;
4269 my $id = shift;
4270
4271 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4272
4273 # Allow transactions, and raise an exception on errors so we can catch it later.
4274 # Use local to make sure these get "reset" properly on exiting this block
4275 local $dbh->{AutoCommit} = 0;
4276 local $dbh->{RaiseError} = 1;
4277
4278 # Put together the log entry
4279 my %logdata;
4280 $logdata{domain_id} = $oldrec->{domain_id};
4281 $logdata{rdns_id} = $oldrec->{rdns_id};
4282 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4283 $logdata{group_id} = $self->parentID(id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'),
4284 revrec => $revrec)
4285 if $defrec eq 'n';
4286 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4287 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4288 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4289 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4290 if $typemap{$oldrec->{type}} eq 'SRV';
4291 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4292 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4293
4294 eval {
4295 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4296 $self->_log(%logdata);
4297 $dbh->commit;
4298 };
4299 if ($@) {
4300 my $msg = $@;
4301 eval { $dbh->rollback; };
4302 if ($self->{log_failures}) {
4303 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4304 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4305 $self->_log(%logdata);
4306 $dbh->commit;
4307 }
4308 return ('FAIL', $msg);
4309 }
4310
4311 return ('OK',$logdata{entry});
4312} # end delRec()
4313
4314
4315## DNSDB::getLogCount()
4316# Get a count of log entries
4317# Takes a database handle and a hash containing at least:
4318# - Entity ID and entity type as the primary log "slice"
4319sub getLogCount {
4320 my $self = shift;
4321 my $dbh = $self->{dbh};
4322
4323 my %args = @_;
4324
4325 my @filterargs;
4326##fixme: which fields do we want to filter on?
4327# push @filterargs,
4328
4329 $errstr = 'Missing primary parent ID and/or type';
4330 # fail early if we don't have a "prime" ID to look for log entries for
4331 return if !$args{id};
4332
4333 # or if the prime id type is missing or invalid
4334 return if !$args{logtype};
4335 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4336 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4337 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4338
4339 my $sql = "SELECT count(*) FROM log ".
4340 "WHERE $id_col{$args{logtype}}=?".
4341 ($args{filter} ? " AND entry ~* ?" : '');
4342 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4343 $errstr = $dbh->errstr if !$count;
4344 return $count;
4345} # end getLogCount()
4346
4347
4348## DNSDB::getLogEntries()
4349# Get a list of log entries
4350# Takes arguments as with getLogCount() above, plus optional:
4351# - sort field
4352# - sort order
4353# - offset for pagination
4354sub getLogEntries {
4355 my $self = shift;
4356 my $dbh = $self->{dbh};
4357
4358 my %args = @_;
4359
4360 my @filterargs;
4361
4362 # fail early if we don't have a "prime" ID to look for log entries for
4363 return if !$args{id};
4364
4365 # or if the prime id type is missing or invalid
4366 return if !$args{logtype};
4367 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4368 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4369 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4370
4371 # Sorting defaults
4372 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4373 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4374 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4375
4376 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4377 $args{sortby} = $sortmap{$args{sortby}};
4378
4379 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4380 "date_trunc('second',stamp) AS logtime ".
4381 "FROM log ".
4382 "WHERE $id_col{$args{logtype}}=?".
4383 ($args{filter} ? " AND entry ~* ?" : '').
4384 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4385 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4386 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4387 $errstr = $dbh->errstr if !$loglist;
4388 return $loglist;
4389} # end getLogEntries()
4390
4391
4392## IPDB::getRevPattern()
4393# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4394sub getRevPattern {
4395 my $self = shift;
4396 my $dbh = $self->{dbh};
4397 my $cidr = shift;
4398 my $group = shift || 1; # just in case
4399
4400 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4401 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ? AND group_id = ?",
4402 undef, ($cidr, $group) );
4403
4404##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4405 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4406 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) >>= ? ".
4407 "ORDER BY inetlazy(val) DESC LIMIT 1", undef, ($revid, $cidr) );
4408 return $revpatt;
4409} # end getRevPattern()
4410
4411
4412## DNSDB::getTypelist()
4413# Get a list of record types for various UI dropdowns
4414# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4415# Returns an arrayref to list of hashrefs perfect for HTML::Template
4416sub getTypelist {
4417 my $self = shift;
4418 my $dbh = $self->{dbh};
4419 my $recgroup = shift;
4420 my $type = shift || $reverse_typemap{A};
4421
4422 # also accepting $webvar{revrec}!
4423 $recgroup = 'f' if $recgroup eq 'n';
4424 $recgroup = 'r' if $recgroup eq 'y';
4425
4426 my $sql = "SELECT val,name FROM rectypes WHERE ";
4427 if ($recgroup eq 'r') {
4428 # reverse zone types
4429 $sql .= "stdflag=2 OR stdflag=3";
4430 } elsif ($recgroup eq 'l') {
4431 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4432 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4433 } else {
4434 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4435 $sql .= "stdflag=1 OR stdflag=2";
4436 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4437 }
4438 $sql .= " ORDER BY listorder";
4439
4440 my $sth = $dbh->prepare($sql);
4441 $sth->execute;
4442 my @typelist;
4443 # track whether the passed type is in the list at all. allows you to edit a record
4444 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4445 # without changing its type (accidentally or otherwise)
4446 my $selflag = 0;
4447 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4448 my %row = ( recval => $rval, recname => $rname );
4449 if ($rval == $type) {
4450 $row{tselect} = 1;
4451 $selflag = 1;
4452 }
4453 push @typelist, \%row;
4454 }
4455
4456 # add the passed type if it wasn't in the list
4457 if (!$selflag) {
4458 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4459 push @typelist, \%row;
4460 }
4461
4462 # Add SOA on lookups since it's not listed in other dropdowns.
4463 if ($recgroup eq 'l') {
4464 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4465 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4466 push @typelist, \%row;
4467 }
4468
4469 return \@typelist;
4470} # end getTypelist()
4471
4472
4473## DNSDB::parentID()
4474# Get ID of entity that is nearest parent to requested id
4475# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4476# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4477# Returns the ID or undef on failure
4478sub parentID {
4479 my $self = shift;
4480 my $dbh = $self->{dbh};
4481
4482 my %args = @_;
4483
4484 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
4485 $args{partype} = 'group' if !$args{partype};
4486 $args{partype} = 'domain' if $args{partype} eq 'revzone';
4487
4488 # clean up defrec and revrec. default to live record, forward zone
4489 $args{defrec} = 'n' if !$args{defrec};
4490 $args{revrec} = 'n' if !$args{revrec};
4491
4492 if ($par_type{$args{partype}} eq 'domain') {
4493 # only live records can have a domain/zone parent
4494 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4495 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4496 " FROM records WHERE record_id = ?",
4497 undef, ($args{id}) ) or return;
4498 return $result;
4499 } else {
4500 # snag some arguments that will either fall through or be overwritten to save some code duplication
4501 my $tmpid = $args{id};
4502 my $type = $args{type};
4503 if ($type eq 'record' && $args{defrec} eq 'n') {
4504 # Live records go through the records table first.
4505 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4506 " FROM records WHERE record_id = ?",
4507 undef, ($args{id}) ) or return;
4508 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4509 }
4510 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4511 undef, ($tmpid) );
4512 return $result;
4513 }
4514# should be impossible to get here with even remotely sane arguments
4515 return;
4516} # end parentID()
4517
4518
4519## DNSDB::isParent()
4520# Returns true if $id1 is a parent of $id2, false otherwise
4521sub isParent {
4522 my $self = shift;
4523 my $dbh = $self->{dbh};
4524 my $id1 = shift;
4525 my $type1 = shift;
4526 my $id2 = shift;
4527 my $type2 = shift;
4528##todo: immediate, secondary, full (default)
4529
4530 # Return false on invalid types
4531 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4532 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4533
4534 # Return false on impossible relations
4535 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4536 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4537 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4538 return 0 if $type1 eq 'user'; # nothing may be child of a user
4539 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4540 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4541
4542 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4543 # case would be the UI creating a new <thing>, and so we don't have an ID for
4544 # <thing> to look up yet. in that case the UI should check the parent as well.
4545 return 0 if $id1 == 0; # nothing can have a parent id of 0
4546 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4547
4548 # group 1 is the ultimate root parent
4549 return 1 if $type1 eq 'group' && $id1 == 1;
4550
4551 # groups are always (a) parent of themselves
4552 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4553
4554 my $id = $id2;
4555 my $type = $type2;
4556 my $foundparent = 0;
4557
4558 # Records are the only entity with two possible parents. We need to split the parent checks on
4559 # domain/rdns.
4560 if ($type eq 'record') {
4561 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4562 undef, ($id));
4563 # check immediate parent against request
4564 return 1 if $type1 eq 'domain' && $id1 == $dom;
4565 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4566 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4567 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
4568 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
4569 # exit here since we've executed the loop below by proxy in the above recursive calls.
4570 return 0;
4571 }
4572
4573# almost the same loop as getParents() above
4574 my $limiter = 0;
4575 while (1) {
4576 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4577 my $result = $dbh->selectrow_hashref($sql,
4578 undef, ($id) );
4579 if (!$result) {
4580 $limiter++;
4581##fixme: how often will this happen on a live site? fail at max limiter <n>?
4582# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
4583 warn "no results looking for $sql with id $id (depth $limiter)\n";
4584 last;
4585 }
4586 if ($result && $result->{$par_col{$type}} == $id1) {
4587 $foundparent = 1;
4588 last;
4589 } else {
4590##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4591# should be impossible to create an inconsistent DB just with API calls.
4592 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4593 }
4594 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4595 last if $result->{$par_col{$type}} == 1;
4596 $id = $result->{$par_col{$type}};
4597 $type = $par_type{$type};
4598 }
4599
4600 return $foundparent;
4601} # end isParent()
4602
4603
4604## DNSDB::zoneStatus()
4605# Returns and optionally sets a zone's status
4606# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4607# Returns status, or undef on errors.
4608sub zoneStatus {
4609 my $self = shift;
4610 my $dbh = $self->{dbh};
4611 my $id = shift;
4612 my $revrec = shift;
4613 my $newstatus = shift || 'mu';
4614
4615 return undef if $id !~ /^\d+$/;
4616
4617 # Allow transactions, and raise an exception on errors so we can catch it later.
4618 # Use local to make sure these get "reset" properly on exiting this block
4619 local $dbh->{AutoCommit} = 0;
4620 local $dbh->{RaiseError} = 1;
4621
4622 if ($newstatus ne 'mu') {
4623 # ooo, fun! let's see what we were passed for status
4624 eval {
4625 $newstatus = 0 if $newstatus eq 'domoff';
4626 $newstatus = 1 if $newstatus eq 'domon';
4627 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4628 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4629
4630##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4631 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
4632 " state to ".($newstatus ? 'active' : 'inactive');
4633
4634 my %loghash;
4635 $loghash{domain_id} = $id if $revrec eq 'n';
4636 $loghash{rdns_id} = $id if $revrec eq 'y';
4637 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
4638 $loghash{entry} = $resultstr;
4639 $self->_log(%loghash);
4640
4641 $dbh->commit;
4642 };
4643 if ($@) {
4644 my $msg = $@;
4645 eval { $dbh->rollback; };
4646 $resultstr = '';
4647 $errstr = $msg;
4648 return;
4649 }
4650 }
4651
4652 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4653 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4654 undef, ($id) );
4655 return $status;
4656} # end zoneStatus()
4657
4658
4659## DNSDB::getZonesByCIDR()
4660# Get a list of zone names and IDs that records for a passed CIDR block are within.
4661sub getZonesByCIDR {
4662 my $self = shift;
4663 my $dbh = $self->{dbh};
4664 my %args = @_;
4665
4666 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
4667 { Slice => {} }, ($args{cidr}, $args{cidr}) );
4668 return $result;
4669} # end getZonesByCIDR()
4670
4671
4672## DNSDB::importAXFR
4673# Import a domain via AXFR
4674# Takes AXFR host, domain to transfer, group to put the domain in,
4675# and an optional hash containing:
4676# status - active/inactive state flag (defaults to active)
4677# rwsoa - overwrite-SOA flag (defaults to off)
4678# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4679# merge - flag to automerge A or AAAA records with matching PTR records
4680# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4681# if status is OK, but WARN includes conditions that are not fatal but should
4682# really be reported.
4683sub importAXFR {
4684 my $self = shift;
4685 my $dbh = $self->{dbh};
4686 my $ifrom_in = shift;
4687 my $zone = shift;
4688 my $group = shift;
4689
4690 my %args = @_;
4691
4692##fixme: add mode to delete&replace, merge+overwrite, merge new?
4693
4694 $args{status} = (defined($args{status}) ? $args{status} : 0);
4695 $args{status} = 1 if $args{status} eq 'on';
4696
4697 my $nrecs = 0;
4698 my $soaflag = 0;
4699 my $nsflag = 0;
4700 my $warnmsg = '';
4701 my $ifrom;
4702
4703 my $rev = 'n';
4704 my $code = 'OK';
4705 my $msg = 'foobar?';
4706
4707 # choke on possible bad setting in ifrom
4708 # IPv4 and v6, and valid hostnames!
4709 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4710 return ('FAIL', "Bad AXFR source host $ifrom")
4711 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4712
4713 my $errmsg;
4714
4715 my $zone_id;
4716 my $domain_id = 0;
4717 my $rdns_id = 0;
4718 my $cidr;
4719
4720# magic happens! detect if we're importing a domain or a reverse zone
4721# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
4722# or what the formal .arpa zone is (if we got a CIDR netblock)
4723# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
4724
4725 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
4726 # we seem to have a reverse zone
4727 $rev = 'y';
4728
4729 if ($zone =~ /\.arpa\.?$/) {
4730 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
4731 ($code,$msg) = _zone2cidr($zone);
4732 return ($code, $msg) if $code eq 'FAIL';
4733 $cidr = $msg;
4734 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
4735 # v4 revzone, CIDR netblock
4736 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4737 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4738 } elsif ($zone =~ /^[\d.]+$/) {
4739 # v4 revzone, leading-octet format
4740 my $mask = 32;
4741 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
4742 $zone .= '.0';
4743 $mask -= 8;
4744 }
4745 $zone .= "/$mask";
4746 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4747 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4748 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
4749 # v6 revzone, CIDR netblock
4750 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4751 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
4752 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4753 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
4754 # v6 revzone, leading-group format
4755 $zone =~ s/::$//;
4756 my $mask = 128;
4757 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
4758 $zone .= ":0";
4759 $mask -= 16;
4760 }
4761 $zone .= "/$mask";
4762 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4763 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4764 } else {
4765 # there is. no. else!
4766 return ('FAIL', "Unknown zone name format '$zone'");
4767 }
4768
4769 # several places this can be triggered from; better to do it once.
4770 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
4771
4772 # quick check to start to see if we've already got one
4773
4774 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
4775 undef, ("$cidr"));
4776 $rdns_id = $zone_id;
4777 } else {
4778 # default to domain
4779 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
4780 undef, ($zone));
4781 $domain_id = $zone_id;
4782 }
4783
4784 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
4785
4786 # little local utility sub to swap $val and $host for revzone records.
4787 sub _revswap {
4788 my $rechost = shift;
4789 my $recdata = shift;
4790
4791 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
4792 $rechost =~ s/\.in-addr\.arpa\.?$//;
4793 $rechost = join '.', reverse split /\./, $rechost;
4794 } else {
4795 $rechost =~ s/\.ip6\.arpa\.?$//;
4796 my @nibs = reverse split /\./, $rechost;
4797 $rechost = '';
4798 my $nc;
4799 foreach (@nibs) {
4800 $rechost.= $_;
4801 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
4802 }
4803 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
4804##fixme: there's a case that ends up with a partial entry here:
4805# ip:add:re:ss::
4806# can't reproduce after letting it sit overnight after discovery. :(
4807#print "$rechost\n";
4808 # canonicalize with NetAddr::IP
4809 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
4810 }
4811 return ($recdata,$rechost)
4812 }
4813
4814
4815 # Allow transactions, and raise an exception on errors so we can catch it later.
4816 # Use local to make sure these get "reset" properly on exiting this block
4817 local $dbh->{AutoCommit} = 0;
4818 local $dbh->{RaiseError} = 1;
4819
4820 my $sth;
4821 eval {
4822
4823 if ($rev eq 'n') {
4824##fixme: serial
4825 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
4826 ($zone, $group, $args{status}) );
4827 # get domain id so we can do the records
4828 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
4829 $domain_id = $zone_id;
4830 $self->_log(group_id => $group, domain_id => $domain_id,
4831 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
4832 } else {
4833##fixme: serial
4834 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
4835 ($cidr,$group,$args{status}) );
4836 # get revzone id so we can do the records
4837 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
4838 $rdns_id = $zone_id;
4839 $self->_log(group_id => $group, rdns_id => $rdns_id,
4840 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
4841 }
4842
4843## bizarre DBI<->Net::DNS interaction bug:
4844## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
4845## fixed, apparently I was doing *something* odd, but not certain what it was that
4846## caused a commit instead of barfing
4847
4848 my $res = Net::DNS::Resolver->new;
4849 $res->nameservers($ifrom);
4850 $res->axfr_start($zone)
4851 or die "Couldn't begin AXFR\n";
4852
4853 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
4854 " VALUES (?,?,?,?,?,?,?,?,?)");
4855
4856 # Stash info about sub-octet v4 revzones here so we don't have
4857 # to store the CNAMEs used to delegate a suboctet zone
4858 # $suboct{zone}{ns}[] -> array of nameservers
4859 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
4860## commented pending actual use of this data. for now, we'll just
4861## auto-(re)create the CNAMEs in revzones on export
4862# my %suboct;
4863
4864 while (my $rr = $res->axfr_next()) {
4865
4866 # Discard out-of-zone records. After trying for a while to replicate this with
4867 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
4868 # in the AXFR data in the first place, and possibly only older versions at that...
4869 # so it can't be reasonably tested. Yay Microsoft.
4870 if ($rr->name !~ /$zone$/i) {
4871 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
4872 }
4873
4874 my $val;
4875 my $distance = 0;
4876 my $weight = 0;
4877 my $port = 0;
4878 my $logfrag = '';
4879
4880 # Collect some record parts
4881 my $type = $rr->type;
4882 my $host = $rr->name;
4883 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
4884
4885 # Info flags for SOA and NS records
4886 $soaflag = 1 if $type eq 'SOA';
4887 $nsflag = 1 if $type eq 'NS';
4888
4889# "Primary" types:
4890# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
4891# maybe KEY
4892
4893# BIND supports:
4894# [standard]
4895# A AAAA CNAME MX NS PTR SOA TXT
4896# [variously experimental, obsolete, or obscure]
4897# HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) NULL WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
4898# ... if one can ever find the right magic to format them correctly
4899
4900# Net::DNS supports:
4901# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
4902# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
4903# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
4904
4905# nasty big ugly case-like thing here, since we have to do *some* different
4906# processing depending on the record. le sigh.
4907
4908# do the initial processing as if the record was in a forward zone. If we're
4909# doing a revzone, we can flip $host and $val as needed, once, after this
4910# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
4911
4912##fixme: what record types other than TXT can/will have >255-byte payloads?
4913
4914 if ($type eq 'A') {
4915 $val = $rr->address;
4916 } elsif ($type eq 'NS') {
4917# hmm. should we warn here if subdomain NS'es are left alone?
4918 next if ($args{rwns} && ($host eq $zone));
4919 $val = $rr->nsdname;
4920 $nsflag = 1;
4921 } elsif ($type eq 'CNAME') {
4922 $val = $rr->cname;
4923 } elsif ($type eq 'SOA') {
4924 next if $args{rwsoa};
4925 $host = $rr->rname.":".$rr->mname;
4926 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
4927 $soaflag = 1;
4928 } elsif ($type eq 'PTR') {
4929 $val = $rr->ptrdname;
4930 } elsif ($type eq 'MX') {
4931 $val = $rr->exchange;
4932 $distance = $rr->preference;
4933 } elsif ($type eq 'TXT') {
4934##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
4935## but don't really seem enthusiastic about it.
4936#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
4937# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
4938# char_str_list returns a list of the individual string fragments in the record
4939# txtdata returns the more useful all-in-one form (since we want to push such protocol
4940# details as far down the stack as we can)
4941# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
4942 $val = $rr->txtdata;
4943 } elsif ($type eq 'SPF') {
4944##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4945 $val = $rr->txtdata;
4946 } elsif ($type eq 'AAAA') {
4947 $val = $rr->address;
4948 } elsif ($type eq 'SRV') {
4949 $val = $rr->target;
4950 $distance = $rr->priority;
4951 $weight = $rr->weight;
4952 $port = $rr->port;
4953 } elsif ($type eq 'KEY') {
4954 # we don't actually know what to do with these...
4955 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4956 } else {
4957 $val = $rr->rdatastr;
4958 # Finding a different record type is not fatal.... just problematic.
4959 # We may not be able to export it correctly.
4960 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4961 }
4962
4963 if ($rev eq 'y' && $type ne 'SOA') {
4964 # up to this point we haven't meddled with the record's hostname part or rdata part.
4965 # for reverse records, (except SOA) we must swap the two.
4966 $host = $val;
4967 $val = $rr->name;
4968 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
4969 if ($tmpcode eq 'FAIL') {
4970 # $val did not have a valid IP value. It's syntactically valid but WTF?
4971 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
4972 } else {
4973 # $val has a valid IP value. See if we can store it as that IP value.
4974 # Note we're enumerating do-nothing cases for clarity.
4975##enhance: this is where we will implement the more subtle variations on #53
4976 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
4977 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
4978 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4979 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
4980 # case: PTR with netblock value, not IP value
4981 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
4982 # stored/displayed as dead:beef::/32 PTR foo
4983
4984## hrm. WTF is this case for, anyway? Needs testing to check the logic.
4985# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
4986# ($tmpmsg->masklen != $cidr->masklen)
4987# ) {
4988# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
4989# # and the mask does not match the zone
4990#$warnmsg .= "WTF case: $host $type $val\n";
4991# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4992
4993 } else {
4994 $val = $tmpmsg;
4995 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
4996 #$val =~ s/:0$//g;
4997 }
4998 }
4999 # magic? convert * records to PTR template (not sure this actually makes sense)
5000 #if ($val =~ /^\*/) {
5001 # $val =~ s/\*\.//;
5002 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
5003 # if ($tmpcode eq 'FAIL') {
5004 # $val = "*.$val";
5005 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
5006 # } else {
5007 # $type = 'PTR template';
5008 # $val = $tmpmsg; if $tmp
5009 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5010 # }
5011 #}
5012 } # non-SOA revrec $host/$val inversion and munging
5013
5014 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5015
5016 if ($args{merge}) {
5017 if ($rev eq 'n') {
5018 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5019 my $etype;
5020 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5021 "WHERE host=? AND val=? AND type=12",
5022 undef, ($host, $val) );
5023 if ($erid) {
5024 if ($type eq 'A') { # PTR -> A+PTR
5025 $etype = 65280;
5026 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5027 }
5028 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5029 $etype = 65281;
5030 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5031 }
5032 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5033 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5034 ($domain_id, $ettl, $etype, $erid));
5035 $nrecs++;
5036 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5037 next; # while axfr_next
5038 }
5039 } # $rev eq 'n'
5040 else {
5041 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5042 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5043 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5044 undef, ($host, $val) );
5045 if ($erid) {
5046 if ($etype == 1) { # A -> A+PTR
5047 $etype = 65280;
5048 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5049 }
5050 if ($etype == 28) { # AAAA -> AAAA+PTR
5051 $etype = 65281;
5052 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5053 }
5054 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5055 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5056 ($rdns_id, $ettl, $etype, $erid));
5057 $nrecs++;
5058 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5059 next; # while axfr_next
5060 }
5061 } # $rev eq 'y'
5062 } # if $args{merge}
5063
5064 # Insert the new record
5065 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5066 $distance, $weight, $port, $ttl);
5067
5068 $nrecs++;
5069
5070 if ($type eq 'SOA') {
5071 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5072 my @tmp1 = split /:/, $host;
5073 my @tmp2 = split /:/, $val;
5074 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5075 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5076 } elsif ($logfrag) {
5077 # special case for log entries we need to meddle with a little.
5078 $logentry .= $logfrag;
5079 } else {
5080 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5081 $logentry .= " [distance $distance]" if $type eq 'MX';
5082 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5083 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5084 }
5085 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5086
5087 } # while axfr_next
5088
5089# Detect and handle delegated subzones
5090# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5091#foreach (keys %suboct) {
5092# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5093# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5094#}
5095
5096 # Overwrite SOA record
5097 if ($args{rwsoa}) {
5098 $soaflag = 1;
5099 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5100 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5101 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5102 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5103 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5104 if ($rev eq 'n') {
5105 $host =~ s/DOMAIN/$zone/g;
5106 $val =~ s/DOMAIN/$zone/g; # arguably useless
5107 } else {
5108 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5109 }
5110 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5111 }
5112 }
5113
5114 # Add standard NS records. The old one(s) should have been skipped by this point.
5115 if ($args{rwns}) {
5116 $nsflag = 1;
5117 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5118 my $sthputns = $dbh->prepare("INSERT INTO records (".
5119 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5120 $sthgetns->execute($group,$reverse_typemap{NS});
5121 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5122 if ($rev eq 'n') {
5123 $host =~ s/DOMAIN/$zone/g;
5124 $val =~ s/DOMAIN/$zone/g; #hmm.
5125 } else {
5126 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5127 $val =~ s/ZONE/$cidr/g;
5128 }
5129 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5130 }
5131 }
5132
5133 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5134 die "Bad zone: No SOA record!\n" if !$soaflag;
5135 die "Bad zone: No NS records!\n" if !$nsflag;
5136
5137 $dbh->commit;
5138
5139 };
5140
5141 if ($@) {
5142 my $msg = $@;
5143 eval { $dbh->rollback; };
5144 return ('FAIL',$msg." $warnmsg");
5145 } else {
5146 return ('WARN', $warnmsg) if $warnmsg;
5147 return ('OK',"Imported OK");
5148 }
5149
5150 # it should be impossible to get here.
5151 return ('WARN',"OOOK!");
5152} # end importAXFR()
5153
5154
5155## DNSDB::importBIND()
5156sub importBIND {
5157} # end importBIND()
5158
5159
5160## DNSDB::import_tinydns()
5161sub import_tinydns {
5162} # end import_tinydns()
5163
5164
5165## DNSDB::export()
5166# Export the DNS database, or a part of it
5167# Takes a string indicating the export type, plus optional arguments depending on type
5168# Writes zone data to targets as appropriate for type
5169sub export {
5170 my $self = shift;
5171 my $target = shift;
5172
5173 if ($target eq 'tiny') {
5174 eval {
5175 $self->__export_tiny(@_);
5176 };
5177 if ($@) {
5178 $errstr = $@;
5179 return undef;
5180 }
5181 }
5182# elsif ($target eq 'foo') {
5183# __export_foo(@_);
5184#}
5185# etc
5186
5187 return 1;
5188} # end export()
5189
5190
5191## DNSDB::__export_tiny
5192# Internal sub to implement tinyDNS (compatible) export
5193# Takes filehandle to write export to, optional argument(s)
5194# to determine which data gets exported
5195sub __export_tiny {
5196 my $self = shift;
5197 my $dbh = $self->{dbh};
5198 my $datafile = shift;
5199 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5200
5201##fixme: slurp up further options to specify particular zone(s) to export
5202
5203##fixme: fail if $datafile isn't an open, writable file
5204
5205 # Error check - does the cache dir exist, if we're using one?
5206 if ($self->{usecache}) {
5207 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5208 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5209 die "$self->{exportcache} must be both readable and writable\n"
5210 if !-r $self->{exportcache} || !-w $self->{exportcache};
5211 }
5212
5213 # easy case - export all evarything
5214 # not-so-easy case - export item(s) specified
5215 # todo: figure out what kind of list we use to export items
5216
5217# raw packet in unknown format: first byte indicates length
5218# of remaining data, allows up to 255 raw bytes
5219
5220 # note: the only I/O failures we seem to be able to actually catch
5221 # here are "closed filehandle" errors. we're probably not writing
5222 # enough data at this point to properly trigger an "out of space"
5223 # error. :/
5224 eval {
5225 use warnings FATAL => ('io');
5226 # Locations/views - worth including in the caching setup?
5227 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5228 foreach my $location (keys %$lochash) {
5229 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5230 $ipprefix =~ s/\s+//g;
5231 $ipprefix = new NetAddr::IP $ipprefix;
5232##fixme: how to handle IPv6?
5233next if $ipprefix->{isv6};
5234 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5235 if ($ipprefix->masklen <= 8) {
5236 foreach ($ipprefix->split(8)) {
5237 my $tmp = $_->addr;
5238 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5239 print $datafile "%$location:$tmp\n";
5240 }
5241 } elsif ($ipprefix->masklen <= 16) {
5242 foreach ($ipprefix->split(16)) {
5243 my $tmp = $_->addr;
5244 $tmp =~ s/\.\d+\.\d+$//;
5245 print $datafile "%$location:$tmp\n";
5246 }
5247 } elsif ($ipprefix->masklen <= 24) {
5248 foreach ($ipprefix->split(24)) {
5249 my $tmp = $_->addr;
5250 $tmp =~ s/\.\d+$//;
5251 print $datafile "%$location:$tmp\n";
5252 }
5253 } else {
5254 foreach ($ipprefix->split(32)) {
5255 print $datafile "%$location:".$_->addr."\n";
5256 }
5257 }
5258 }
5259 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5260 }
5261 };
5262 if ($@) {
5263 die "Error writing locations to master file: $@, $!\n";
5264 }
5265
5266 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5267 my %recflags;
5268
5269# For reasons unknown, we can't sanely UNION these statements. Feh.
5270# Supposedly it should work though (note last 3 lines):
5271## PG manual
5272#UNION Clause
5273#
5274#The UNION clause has this general form:
5275#
5276# select_statement UNION [ ALL ] select_statement
5277#
5278#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5279#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5280#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5281 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5282 "FROM records WHERE rdns_id=? AND type=6");
5283 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5284 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5285 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5286 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5287 "ORDER BY masklen(revnet) DESC, rdns_id");
5288 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5289 $revsth->execute();
5290 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5291##fixme: need to find a way to block opening symlinked files without introducing a race.
5292# O_NOFOLLOW
5293# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5294# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5295# still be followed.
5296# but that doesn't help other platforms. :/
5297 my $tmpzone = NetAddr::IP->new($revzone);
5298##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5299## (eg /20 vs /24, starting on .0.0)
5300 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5301 my $cachefile = "$self->{exportcache}/$cz";
5302 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5303 eval {
5304
5305 # write fresh records if:
5306 # - we are not using the cache
5307 # - force_refresh is set
5308 # - the zone has changed
5309 # - the cache file does not exist
5310 # - the cache file is empty
5311 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5312 if ($self->{usecache}) {
5313 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5314 $zonefilehandle = *ZONECACHE;
5315 }
5316
5317 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5318 $soasth->execute($revid);
5319 my (@zsoa) = $soasth->fetchrow_array();
5320 _printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5321 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5322
5323 $recsth->execute($revid);
5324 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5325
5326 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5327 = $recsth->fetchrow_array) {
5328 next if $recflags{$recid};
5329
5330 # Check for out-of-zone data
5331 if ($val =~ /\.arpa$/) {
5332 # val is non-IP
5333 if ($val !~ /$fullzone$/) {
5334 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5335 next;
5336 }
5337 } else {
5338 my $ipval = new NetAddr::IP $val;
5339 if (!$tmpzone->contains($ipval)) {
5340 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5341 next;
5342 }
5343 } # is $val a raw .arpa name?
5344
5345 # Spaces are evil.
5346 $val =~ s/^\s+//;
5347 $val =~ s/\s+$//;
5348 if ($typemap{$type} ne 'TXT') {
5349 # Leading or trailng spaces could be legit in TXT records.
5350 $host =~ s/^\s+//;
5351 $host =~ s/\s+$//;
5352 }
5353
5354 _printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5355 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5356
5357 $recflags{$recid} = 1;
5358
5359 } # while ($recsth)
5360
5361 if ($self->{usecache}) {
5362 close ZONECACHE; # force the file to be written
5363 # catch obvious write errors that leave an empty temp file
5364 if (-s $tmpcache) {
5365 rename $tmpcache, $cachefile
5366 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5367 }
5368 }
5369
5370 } # if $changed or cache filesize is 0
5371
5372 };
5373 if ($@) {
5374 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5375 # error! something borked, and we should be able to fall back on the old cache file
5376 # report the error, somehow.
5377 } else {
5378 # mark zone as unmodified. Only do this if no errors, that way
5379 # export failures should recover a little more automatically.
5380 $zonesth->execute($revid);
5381 }
5382
5383 if ($self->{usecache}) {
5384 # We've already made as sure as we can that a cached zone file is "good",
5385 # although possibly stale/obsolete due to errors creating a new one.
5386 eval {
5387 open CACHE, "<$cachefile" or die $!;
5388 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5389 close CACHE;
5390 };
5391 die $@ if $@;
5392 }
5393
5394 } # while ($revsth)
5395
5396 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5397 "FROM records WHERE domain_id=? AND type=6");
5398 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5399 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5400# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5401 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5402 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5403 $domsth->execute();
5404 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5405##fixme: need to find a way to block opening symlinked files without introducing a race.
5406# O_NOFOLLOW
5407# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5408# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5409# still be followed.
5410# but that doesn't help other platforms. :/
5411 my $cachefile = "$self->{exportcache}/$dom";
5412 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5413 eval {
5414
5415 # write fresh records if:
5416 # - we are not using the cache
5417 # - force_refresh is set
5418 # - the zone has changed
5419 # - the cache file does not exist
5420 # - the cache file is empty
5421 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5422 if ($self->{usecache}) {
5423 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5424 $zonefilehandle = *ZONECACHE;
5425 }
5426
5427 # need to fetch this separately so the SOA comes first in the flatfile....
5428 # Just In Case we need/want to reimport from the flatfile later on.
5429 $soasth->execute($domid);
5430 my (@zsoa) = $soasth->fetchrow_array();
5431 _printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5432 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5433
5434 $recsth->execute($domid);
5435 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5436 next if $recflags{$recid};
5437
5438 # Check for out-of-zone data
5439 if ($host !~ /$dom$/) {
5440 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5441 next;
5442 }
5443
5444 # Spaces are evil.
5445 $host =~ s/^\s+//;
5446 $host =~ s/\s+$//;
5447 if ($typemap{$type} ne 'TXT') {
5448 # Leading or trailng spaces could be legit in TXT records.
5449 $val =~ s/^\s+//;
5450 $val =~ s/\s+$//;
5451 }
5452
5453 _printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5454 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5455
5456 $recflags{$recid} = 1;
5457
5458 } # while ($recsth)
5459
5460
5461 if ($self->{usecache}) {
5462 close ZONECACHE; # force the file to be written
5463 # catch obvious write errors that leave an empty temp file
5464 if (-s $tmpcache) {
5465 rename $tmpcache, $cachefile
5466 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5467 }
5468 }
5469
5470 } # if $changed or cache filesize is 0
5471
5472 };
5473 if ($@) {
5474 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5475 # error! something borked, and we should be able to fall back on the old cache file
5476 # report the error, somehow.
5477 } else {
5478 # mark domain as unmodified. Only do this if no errors, that way
5479 # export failures should recover a little more automatically.
5480 $zonesth->execute($domid);
5481 }
5482
5483 if ($self->{usecache}) {
5484 # We've already made as sure as we can that a cached zone file is "good",
5485 # although possibly stale/obsolete due to errors creating a new one.
5486 eval {
5487 open CACHE, "<$cachefile" or die $!;
5488 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
5489 close CACHE;
5490 };
5491 die $@ if $@;
5492 }
5493
5494 } # while ($domsth)
5495
5496 return 1;
5497} # end __export_tiny()
5498
5499
5500# Utility sub for __export_tiny above
5501sub _printrec_tiny {
5502 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
5503 $loc, $stamp, $expires, $stampactive) = @_;
5504
5505 $loc = '' if !$loc; # de-nullify - just in case
5506##fixme: handle case of record-with-location-that-doesn't-exist better.
5507# note this currently fails safe (tested) - records with a location that
5508# doesn't exist will not be sent to any client
5509# $loc = '' if !$lochash->{$loc};
5510
5511
5512## Records that are valid only before or after a set time
5513
5514# record due to expire sometime is the complex case. we don't want to just
5515# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
5516# is one day instead of the SOA minttl as BIND might do.
5517
5518# consider the case where a record is set to expire a week ahead, but the next
5519# day later you want to change it NOW (or as NOWish as you get with your DNS
5520# management practice). but now you're stuck, because someone, somewhere,
5521# has just done a lookup before your latest change was published, and they'll
5522# be caching that old, broken record for 1 day instead of your zone default
5523# TTL.
5524
5525# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
5526# to still have the expiry happen as scheduled, but we need to find some
5527# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
5528# but we need info on the export frequency.
5529
5530# export the normal, non-expiring record up until $stamp-<guesstimate>, then
5531# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
5532# takes over TTL management.
5533
5534 if ($stampactive) {
5535 if ($expires) {
5536 # record expires at $stamp; decide if we need to keep the TTL and ignore
5537 # the stamp for a time or if we need to change the TTL to 0 and convert
5538 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
5539# extra hack, optimally needs more knowledge of data export frequency
5540# smack the idiot customer who insists on 0 TTLs; they can suck up and
5541# deal with a 10-minute TTL. especially on scheduled changes. note this
5542# should be (export freq * 2), but we don't know the actual export frequency.
5543$ttl = 300 if $ttl == 0; #hack phtui
5544 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
5545 if ((time() + $ahead) < $stamp) {
5546 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
5547 $stamp = '';
5548 } else {
5549 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
5550 $ttl = 0;
5551 $stamp = unixtai64($stamp);
5552 $stamp =~ s/\@//;
5553 }
5554 } else {
5555 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
5556 $stamp = unixtai64($stamp);
5557 $stamp =~ s/\@//;
5558 }
5559 } else {
5560 # flag for active timestamp is false; don't actually put a timestamp in the output
5561 $stamp = '';
5562 }
5563
5564 # support tinydns' auto-TTL
5565 $ttl = '' if $ttl == -1;
5566# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
5567# NS 259200 => 3d
5568# all others 86400 => 1d
5569
5570 if ($revrec eq 'y') {
5571 $val = $zone if $val eq '@';
5572 } else {
5573 $host = $zone if $host eq '@';
5574 }
5575
5576 ## Convert a bare number into an octal-coded pair of octets.
5577 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
5578 sub octalize {
5579 my $tmp = shift;
5580 my $srctype = shift || 'h'; # default assumes hex string
5581 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
5582 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
5583 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
5584 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
5585 }
5586
5587## WARNING: This works to export even the whole Internet's worth of IP space...
5588## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
5589## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
5590## 0/0 is estimated to take ~54 hours and ~256G of disk
5591## RAM usage depends on how many non-template entries you have in the set.
5592## This should probably be done on record addition rather than export; large blocks may need to be done in a
5593## forked process
5594 sub __publish_subnet {
5595 my $sub = shift;
5596 my $recflags = shift;
5597 my $hpat = shift;
5598 my $fh = shift;
5599 my $ttl = shift;
5600 my $stamp = shift;
5601 my $loc = shift;
5602 my $ptronly = shift || 0;
5603
5604 my $iplist = $sub->splitref(32);
5605 foreach (@$iplist) {
5606 my $ip = $_->addr;
5607 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
5608 next if $ip =~ /\.(0|255)$/;
5609 next if $$recflags{$ip};
5610 $$recflags{$ip}++;
5611 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
5612 my $rec = $hpat; # start fresh with the template for each IP
5613 _template4_expand(\$rec, $ip);
5614 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
5615 ":$ttl:$stamp:$loc\n" or die $!;
5616 }
5617 }
5618
5619##fixme? append . to all host/val hostnames
5620 if ($typemap{$type} eq 'SOA') {
5621
5622 # host contains pri-ns:responsible
5623 # val is abused to contain refresh:retry:expire:minttl
5624##fixme: "manual" serial vs tinydns-autoserial
5625 # let's be explicit about abusing $host and $val
5626 my ($email, $primary) = (split /:/, $host)[0,1];
5627 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
5628 if ($revrec eq 'y') {
5629##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
5630# what about v6?
5631# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
5632 $zone = NetAddr::IP->new($zone);
5633 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5634 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
5635 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
5636 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5637 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5638 or die $!;
5639 }
5640 return; # skips "default" bits just below
5641 }
5642 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5643 }
5644 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5645 or die $!;
5646
5647 } elsif ($typemap{$type} eq 'A') {
5648
5649 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
5650
5651 } elsif ($typemap{$type} eq 'NS') {
5652
5653 if ($revrec eq 'y') {
5654 $val = NetAddr::IP->new($val);
5655 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5656 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
5657 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
5658 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5659 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5660 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5661 $$recflags{$szone2} = $val->masklen;
5662 }
5663 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
5664 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
5665 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
5666 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5667 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5668 $$recflags{$szone2} = $val->masklen;
5669 }
5670 } else {
5671 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5672 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5673 $$recflags{$val2} = $val->masklen;
5674 }
5675 } else {
5676 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
5677 }
5678
5679 } elsif ($typemap{$type} eq 'AAAA') {
5680
5681# print $datafile ":$host:28:";
5682 my $altgrp = 0;
5683 my @altconv;
5684 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
5685 foreach (split /:/, $val) {
5686 if (/^$/) {
5687 # flag blank entry; this is a series of 0's of (currently) unknown length
5688 $altconv[$altgrp++] = 's';
5689 } else {
5690 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
5691 $altconv[$altgrp++] = octalize($_)
5692 }
5693 }
5694 my $prefix = ":$host:28:";
5695 foreach my $octet (@altconv) {
5696 # if not 's', output
5697 $prefix .= $octet unless $octet =~ /^s$/;
5698 # if 's', output (9-array length)x literal '\000\000'
5699 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
5700 }
5701 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
5702
5703 } elsif ($typemap{$type} eq 'MX') {
5704
5705##fixme: what if we get an MX AXFRed into a reverse zone?
5706 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
5707
5708 } elsif ($typemap{$type} eq 'TXT') {
5709
5710##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
5711 if ($revrec eq 'n') {
5712 $val =~ s/:/\\072/g; # may need to replace other symbols
5713 print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
5714 } else {
5715 $host =~ s/:/\\072/g; # may need to replace other symbols
5716 my $val2 = NetAddr::IP->new($val);
5717 print $datafile "'"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5718 ":$host:$ttl:$stamp:$loc\n" or die $!;
5719 }
5720
5721# by-hand TXT
5722#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
5723#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
5724#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
5725
5726#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
5727#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
5728
5729# very long TXT record as brought in by axfr-get
5730# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
5731# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
5732#:longtxt.deepnet.cx:16:
5733#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
5734#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
5735#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
5736#:3600
5737
5738 } elsif ($typemap{$type} eq 'CNAME') {
5739
5740 if ($revrec eq 'n') {
5741 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
5742 } else {
5743 my $val2 = NetAddr::IP->new($val);
5744 print $datafile "C"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5745 ":$host:$ttl:$stamp:$loc\n" or die $!;
5746 }
5747
5748 } elsif ($typemap{$type} eq 'SRV') {
5749
5750 # data is two-byte values for priority, weight, port, in that order,
5751 # followed by length/string data
5752
5753 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d') or die $!;
5754
5755 $val .= '.' if $val !~ /\.$/;
5756 foreach (split /\./, $val) {
5757 printf $datafile "\\%0.3o%s", length($_), $_ or die $!;
5758 }
5759 print $datafile "\\000:$ttl:$stamp:$loc\n" or die $!;
5760
5761 } elsif ($typemap{$type} eq 'RP') {
5762
5763 # RP consists of two mostly free-form strings.
5764 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
5765 # The second is the "hostname" of a TXT record with more info.
5766 my $prefix = ":$host:17:";
5767 my ($who,$what) = split /\s/, $val;
5768 foreach (split /\./, $who) {
5769 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5770 }
5771 $prefix .= '\000';
5772 foreach (split /\./, $what) {
5773 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5774 }
5775 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
5776
5777 } elsif ($typemap{$type} eq 'PTR') {
5778
5779 $zone = NetAddr::IP->new($zone);
5780 $$recflags{$val}++;
5781 if (!$zone->{isv6} && $zone->masklen > 24) {
5782 ($val) = ($val =~ /\.(\d+)$/);
5783 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
5784 ":$host:$ttl:$stamp:$loc\n" or die $!;
5785 } else {
5786 $val = NetAddr::IP->new($val);
5787 print $datafile "^".
5788 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5789 ":$host:$ttl:$stamp:$loc\n" or die $!;
5790 }
5791
5792 } elsif ($type == 65280) { # A+PTR
5793
5794 $$recflags{$val}++;
5795 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
5796
5797 } elsif ($type == 65281) { # AAAA+PTR
5798
5799 $$recflags{$val}++;
5800 # treat these as two separate records. since tinydns doesn't have
5801 # a native combined type, we have to create them separately anyway.
5802 # print both; a dangling record is harmless, and impossible via web
5803 # UI anyway
5804 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,28,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5805 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,12,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5806##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
5807# type 6 is for AAAA+PTR, type 3 is for AAAA
5808
5809 } elsif ($type == 65282) { # PTR template
5810
5811 # only useful for v4 with standard DNS software, since this expands all
5812 # IPs in $zone (or possibly $val?) with autogenerated records
5813 $val = NetAddr::IP->new($val);
5814 return if $val->{isv6};
5815
5816 if ($val->masklen <= 16) {
5817 foreach my $sub ($val->split(16)) {
5818 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5819 }
5820 } else {
5821 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5822 }
5823
5824 } elsif ($type == 65283) { # A+PTR template
5825
5826 $val = NetAddr::IP->new($val);
5827 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
5828 return if $val->{isv6};
5829
5830 if ($val->masklen <= 16) {
5831 foreach my $sub ($val->split(16)) {
5832 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5833 }
5834 } else {
5835 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5836 }
5837
5838 } elsif ($type == 65284) { # AAAA+PTR template
5839 # Stub for completeness. Could be exported to DNS software that supports
5840 # some degree of internal automagic in generic-record-creation
5841 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
5842
5843 } elsif ($type == 65285) { # Delegation
5844 # This is intended for reverse zones, but may prove useful in forward zones.
5845
5846 # All delegations need to create one or more NS records. The NS record handler knows what to do.
5847 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
5848 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
5849 if ($revrec eq 'y') {
5850 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
5851 # to redirect all of the individual IP lookups as well.
5852 # Not sure how this would actually resolve if a /24 or larger was delegated
5853 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
5854 my $dblock = NetAddr::IP->new($val);
5855 if (!$dblock->{isv6} && $dblock->masklen > 24) {
5856 my @subs = $dblock->split;
5857 foreach (@subs) {
5858 next if $$recflags{"$_"};
5859 my ($oct) = ($_->addr =~ /(\d+)$/);
5860 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
5861 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
5862 $$recflags{"$_"}++;
5863 }
5864 }
5865 }
5866
5867##
5868## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
5869##
5870
5871 } elsif ($type == 44) { # SSHFP
5872 my ($algo,$fpt,$fp) = split /\s+/, $val;
5873
5874 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
5875 while (my ($byte) = ($fp =~ /^(..)/) ) {
5876 $rec .= sprintf "\\%0.3o", hex($byte);
5877 $fp =~ s/^..//;
5878 }
5879 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
5880
5881 } else {
5882 # raw record. we don't know what's in here, so we ASS-U-ME the user has
5883 # put it in correctly, since either the user is messing directly with the
5884 # database, or the record was imported via AXFR
5885 # <split by char>
5886 # convert anything not a-zA-Z0-9.- to octal coding
5887
5888##fixme: add flag to export "unknown" record types - note we'll probably end up
5889# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
5890 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
5891
5892 } # record type if-else
5893
5894} # end _printrec_tiny()
5895
5896
5897## DNSDB::mailNotify()
5898# Sends notification mail to recipients regarding a DNSDB operation
5899sub mailNotify {
5900 my $self = shift;
5901 my $dbh = $self->{dbh};
5902 my ($subj,$message) = @_;
5903
5904 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
5905
5906 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
5907
5908 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
5909
5910 $mailer->mail($mailsender);
5911 $mailer->to($self->{mailnotify});
5912 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
5913 "To: <$self->{mailnotify}>\n",
5914 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
5915 "Subject: $subj\n",
5916 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
5917 "Organization: $self->{orgname}\n",
5918 "\n$message\n");
5919 $mailer->quit;
5920}
5921
5922# shut Perl up
59231;
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