source: trunk/DNSDB.pm@ 607

Last change on this file since 607 was 607, checked in by Kris Deugau, 10 years ago

/trunk

Fix very subtle bug in converting IP values to .arpa "hostnames" for
reverse zone display; NetAddr::IP converts:

knurd.5.0.0.0.b.0.0.b.5.b.0.b.f.e.e.b.d.a.e.d.ip6.arpa

to 192.168.7.6/32. O_o Really.

Since .arpa "hostnames" in reverse zones don't need to be converted to
.arpa "hostnames", we'll just skip them all.
  • Property svn:keywords set to Date Rev Author Id
File size: 214.8 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 607 2014-04-03 21:51:40Z 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::_hostparent()
379# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
380# Takes a hostname.
381# Returns the domain ID of the parent domain if one was found.
382sub _hostparent {
383 my $self = shift;
384 my $dbh = $self->{dbh};
385 my $hname = shift;
386
387 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
388 my @hostbits = split /\./, $hname;
389 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE lower(domain) = lower(?) GROUP BY domain_id");
390 foreach (@hostbits) {
391 $sth->execute($hname);
392 my ($found, $parid) = $sth->fetchrow_array;
393 if ($found) {
394 return $parid;
395 }
396 $hname =~ s/^$_\.//;
397 }
398} # end _hostparent()
399
400## DNSDB::_log()
401# Log an action
402# Takes a log entry hash containing at least:
403# group_id, log entry
404# and optionally one or more of:
405# domain_id, rdns_id
406# The %userdata hash provides the user ID, username, and fullname
407sub _log {
408 my $self = shift;
409 my $dbh = $self->{dbh};
410
411 my %args = @_;
412
413 $args{rdns_id} = 0 if !$args{rdns_id};
414 $args{domain_id} = 0 if !$args{domain_id};
415
416##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
417# if ($self->{log_channel} eq 'sql') {
418 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
419 undef,
420 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
421 $self->{loguserid}, $self->{logusername}, $self->{logfullname}) );
422# } elsif ($self->{log_channel} eq 'file') {
423# } elsif ($self->{log_channel} eq 'syslog') {
424# }
425} # end _log
426
427
428##
429## Record validation subs.
430##
431
432## All of these subs take substantially the same arguments:
433# a hash containing at least the following keys:
434# - defrec (default/live flag)
435# - revrec (forward/reverse flag)
436# - id (parent entity ID)
437# - host (hostname)
438# - rectype
439# - val (IP, hostname [CNAME/MX/SRV] or text)
440# - addr (NetAddr::IP object from val. May be undef.)
441# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
442# host, rectype, and addr should be references as these may be modified in validation
443
444# A record
445sub _validate_1 {
446 my $self = shift;
447 my $dbh = $self->{dbh};
448
449 my %args = @_;
450
451# only for strict type restrictions
452# return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
453
454 if ($args{revrec} eq 'y') {
455 # Get the revzone, so we can see if ${$args{val}} is in that zone
456 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
457
458 # Unlike forward zones, we will not coerce the data into the reverse zone - an A record
459 # in a reverse zone is already silly enough without appending a mess of 1.2.3.in-addr.arpa
460 # (or worse, 1.2.3.4.5.6.7.8.ip6.arpa) on the end of the nominal "hostname".
461 # We're also going to allow the "hostname" to be stored as .arpa or IP, because it won't
462 # make any more sense either way.
463 if (${$args{val}} =~ /\.arpa$/) {
464 # "hostname" could be any syntactically legitimate string, but it must be within the formal
465 # .arpa zone. Note we're not validating these for correct reverse-IP values.
466 # yes, we really need the v6 branch on the end here.
467 $revzone = _ZONE($revzone, 'ZONE', 'r', '.').($revzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
468 return ('FAIL', "${$args{val}} not within $revzone")
469 unless ${$args{val}} =~ /$revzone$/;
470 } else {
471 # "hostname" should be a valid IP address. Normalize formatting if so.
472 return ('FAIL', "${$args{val}} is not a valid IP address") if !$args{addr};
473 return ('FAIL', "${$args{val}} is not within $revzone") if !$revzone->contains($args{addr});
474 (${$args{val}} = $args{addr}) =~ s{/(?:32|128)$}{};
475 }
476
477 # Check IP is well-formed, and that it's a v4 address
478 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
479 return ('FAIL',"A record must be a valid IPv4 address")
480 unless ${$args{host}} =~ /^\d+\.\d+\.\d+\.\d+$/;
481 $args{addr} = new NetAddr::IP ${$args{host}};
482 return ('FAIL',"A record must be a valid IPv4 address")
483 unless $args{addr} && !$args{addr}->{isv6};
484 # coerce IP/value to normalized form for storage
485 ${$args{host}} = $args{addr}->addr;
486
487 # I'm just going to ignore the utterly barmy idea of an A record in the *default*
488 # records for a reverse zone; it's bad enough to find one in funky legacy data.
489
490 } else {
491 # revrec ne 'y'
492
493 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
494 # or the intended parent domain for live records.
495 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
496 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/);
497
498 # Check IP is well-formed, and that it's a v4 address
499 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
500 return ('FAIL',"A record must be a valid IPv4 address")
501 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
502 return ('FAIL',"A record must be a valid IPv4 address")
503 unless $args{addr} && !$args{addr}->{isv6};
504 # coerce IP/value to normalized form for storage
505 ${$args{val}} = $args{addr}->addr;
506 }
507
508 return ('OK','OK');
509} # done A record
510
511# NS record
512sub _validate_2 {
513 my $self = shift;
514 my $dbh = $self->{dbh};
515
516 my %args = @_;
517
518 # Check that the target of the record is within the parent.
519 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
520 if ($args{defrec} eq 'n') {
521 # Check if IP/address/zone/"subzone" is within the parent
522 if ($args{revrec} eq 'y') {
523 my $tmpip = NetAddr::IP->new(${$args{val}});
524 my $pname = $self->revName($args{id});
525 return ('FAIL',"${$args{val}} not within $pname")
526 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
527 # Sub the returned thing for ZONE? This could get stupid if you have typos...
528 ${$args{val}} =~ s/ZONE/$tmpip->address/;
529 } else {
530 my $pname = $self->domainName($args{id});
531 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
532 }
533 } else {
534 # Default reverse NS records should always refer to the implied parent
535 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
536 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
537 }
538
539# Let this lie for now. Needs more magic.
540# # Check IP is well-formed, and that it's a v4 address
541# return ('FAIL',"A record must be a valid IPv4 address")
542# unless $addr && !$addr->{isv6};
543# # coerce IP/value to normalized form for storage
544# $$val = $addr->addr;
545
546 return ('OK','OK');
547} # done NS record
548
549# CNAME record
550sub _validate_5 {
551 my $self = shift;
552 my $dbh = $self->{dbh};
553
554 my %args = @_;
555
556# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
557# This is fundamentally a messy operation and should really just be taken care of by the
558# export process, not manual maintenance of the necessary records.
559 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
560
561 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
562 # or the intended parent domain for live records.
563 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
564 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
565
566 return ('OK','OK');
567} # done CNAME record
568
569# SOA record
570sub _validate_6 {
571 # Smart monkeys won't stick their fingers in here; we have
572 # separate dedicated routines to deal with SOA records.
573 return ('OK','OK');
574} # done SOA record
575
576# PTR record
577sub _validate_12 {
578 my $self = shift;
579 my $dbh = $self->{dbh};
580
581 my %args = @_;
582
583 if ($args{revrec} eq 'y') {
584 if ($args{defrec} eq 'n') {
585 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
586 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
587 ${$args{val}} = $args{addr}->addr;
588 } else {
589 if (${$args{val}} =~ /\./) {
590 # looks like a v4 or fragment
591 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
592 # woo! a complete IP! validate it and normalize, or fail.
593 $args{addr} = NetAddr::IP->new(${$args{val}})
594 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
595 ${$args{val}} = $args{addr}->addr;
596 } else {
597 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
598 }
599 } elsif (${$args{val}} =~ /[a-f:]/) {
600 # looks like a v6 or fragment
601 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
602 if ($args{addr}) {
603 if ($args{addr}->addr =~ /^0/) {
604 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
605 } else {
606 ${$args{val}} = $args{addr}->addr;
607 }
608 }
609 } else {
610 # bare number (probably). These could be v4 or v6, so we'll
611 # expand on these on creation of a reverse zone.
612 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
613 }
614 ${$args{host}} =~ s/\.*$/\.$self->{domain}/ if ${$args{host}} !~ /(?:$self->{domain}|ADMINDOMAIN)$/;
615 }
616
617# Multiple PTR records do NOT generally do what most people believe they do,
618# and tend to fail in the most awkward way possible. Check and warn.
619# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
620
621 my @checkvals = (${$args{val}});
622 if (${$args{val}} =~ /,/) {
623 # push . and :: variants into checkvals if val has ,
624 my $tmp;
625 ($tmp = ${$args{val}}) =~ s/,/./;
626 push @checkvals, $tmp;
627 ($tmp = ${$args{val}}) =~ s/,/::/;
628 push @checkvals, $tmp;
629 }
630 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
631 foreach my $checkme (@checkvals) {
632 if ($args{update}) {
633 # Record update. There should usually be an existing PTR (the record being updated)
634 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
635 " WHERE val = ?", undef, ($checkme)) };
636 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
637 if @ptrs && (!grep /^$args{update}$/, @ptrs);
638 } else {
639 # New record. Always warn if a PTR exists
640 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
641 " WHERE val = ?", undef, ($checkme));
642 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
643 if $ptrcount;
644 }
645 }
646
647 } else {
648 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
649 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
650 # PTR records on export
651 return ('FAIL',"Forward zones cannot contain PTR records");
652 }
653
654 return ('OK','OK');
655} # done PTR record
656
657# MX record
658sub _validate_15 {
659 my $self = shift;
660 my $dbh = $self->{dbh};
661
662 my %args = @_;
663
664# Not absolutely true but WTF use is an MX record for a reverse zone?
665 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
666
667 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
668 ${$args{dist}} =~ s/\s*//g;
669 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
670
671 ${$args{fields}} = "distance,";
672 push @{$args{vallist}}, ${$args{dist}};
673
674 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
675 # or the intended parent domain for live records.
676 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
677 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
678
679# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
680# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
681# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
682# return ('FAIL',"$val is not a valid IP address") if !$addr;
683# }
684# }
685
686 return ('OK','OK');
687} # done MX record
688
689# TXT record
690sub _validate_16 {
691 my $self = shift;
692
693 my %args = @_;
694
695 if ($args{revrec} eq 'y') {
696 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
697 # or the intended parent domain for live records.
698 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
699 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
700 }
701
702 # Could arguably put a WARN return here on very long (>512) records
703 return ('OK','OK');
704} # done TXT record
705
706# RP record
707sub _validate_17 {
708 # Probably have to validate these some day
709 return ('OK','OK');
710} # done RP record
711
712# AAAA record
713sub _validate_28 {
714 my $self = shift;
715 my $dbh = $self->{dbh};
716
717 my %args = @_;
718
719 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
720
721 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
722 # or the intended parent domain for live records.
723 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
724 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
725
726 # Check IP is well-formed, and that it's a v6 address
727 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
728 unless $args{addr} && $args{addr}->{isv6};
729 # coerce IP/value to normalized form for storage
730 ${$args{val}} = $args{addr}->addr;
731
732 return ('OK','OK');
733} # done AAAA record
734
735# SRV record
736sub _validate_33 {
737 my $self = shift;
738 my $dbh = $self->{dbh};
739
740 my %args = @_;
741
742# Not absolutely true but WTF use is an SRV record for a reverse zone?
743 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
744
745 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
746 ${$args{dist}} =~ s/\s*//g;
747 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
748
749 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
750 # or the intended parent domain for live records.
751 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
752 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
753
754 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
755 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
756 return ('FAIL',"Port and weight are required for SRV records")
757 unless defined(${$args{weight}}) && defined(${$args{port}});
758 ${$args{weight}} =~ s/\s*//g;
759 ${$args{port}} =~ s/\s*//g;
760
761 return ('FAIL',"Port and weight are required, and must be numeric")
762 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
763
764 ${$args{fields}} = "distance,weight,port,";
765 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
766
767 return ('OK','OK');
768} # done SRV record
769
770# Now the custom types
771
772# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
773sub _validate_65280 {
774 my $self = shift;
775 my $dbh = $self->{dbh};
776
777 my %args = @_;
778
779 my $code = 'OK';
780 my $msg = 'OK';
781
782 if ($args{defrec} eq 'n') {
783 # live record; revrec determines whether we validate the PTR or A component first.
784
785 if ($args{revrec} eq 'y') {
786 ($code,$msg) = $self->_validate_12(%args);
787 return ($code,$msg) if $code eq 'FAIL';
788
789 # check A+PTR is really v4
790 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
791 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
792 # check AAAA+PTR is really v6
793 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
794 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
795
796 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
797 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
798 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
799 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
800 $msg .= "\n$addmsg" if $code eq 'WARN';
801 $msg = $addmsg if $code eq 'OK';
802 ${$args{rectype}} = $reverse_typemap{PTR};
803 return ('WARN', $msg);
804 }
805
806 # Add domain ID to field list and values
807 ${$args{fields}} .= "domain_id,";
808 push @{$args{vallist}}, ${$args{domid}};
809
810 } else {
811 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
812 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
813 return ($code,$msg) if $code eq 'FAIL';
814
815 # Check if the requested reverse zone exists - note, an IP fragment won't
816 # work here since we don't *know* which parent to put it in.
817 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
818 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
819 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
820 if (!$revid) {
821 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
822 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
823 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
824 return ('WARN', $msg);
825 }
826
827 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
828 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
829 if ($args{update}) {
830 # Record update. There should usually be an existing PTR (the record being updated)
831 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
832 " WHERE val = ?", undef, (${$args{val}})) };
833 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
834 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
835 $code = 'WARN';
836 }
837 } else {
838 # New record. Always warn if a PTR exists
839 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
840 " WHERE val = ?", undef, (${$args{val}}));
841 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
842 if $ptrcount;
843 $code = 'WARN' if $ptrcount;
844 }
845
846# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
847# " WHERE val = ?", undef, ${$args{val}});
848# if ($ptrcount) {
849# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
850# " WHERE val = ?
851# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
852# $code = 'WARN';
853# }
854
855 ${$args{fields}} .= "rdns_id,";
856 push @{$args{vallist}}, $revid;
857 }
858
859 } else { # defrec eq 'y'
860 if ($args{revrec} eq 'y') {
861 ($code,$msg) = $self->_validate_12(%args);
862 return ($code,$msg) if $code eq 'FAIL';
863 if (${$args{rectype}} == 65280) {
864 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
865 if ${$args{val}} =~ /:/;
866 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
867 } elsif (${$args{rectype}} == 65281) {
868 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
869 if ${$args{val}} =~ /\./;
870 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
871 }
872 } else {
873 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
874 # domains, since you wouldn't be able to substitute both domain and reverse zone
875 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
876 # confuse the hell out of pretty much anything that uses them.
877##fixme: make this a config flag?
878 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
879 }
880 }
881
882 return ($code, $msg);
883} # done A+PTR record
884
885# AAAA+PTR record
886# A+PTR above has been magicked to handle AAAA+PTR as well.
887sub _validate_65281 {
888 return _validate_65280(@_);
889} # done AAAA+PTR record
890
891# PTR template record
892sub _validate_65282 {
893 my $self = shift;
894 my $dbh = $self->{dbh};
895
896 my %args = @_;
897
898 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
899 if ($args{revrec} eq 'y') {
900 if ($args{defrec} eq 'n') {
901 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
902 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
903##fixme: warn if $args{val} is not /31 or larger block?
904 ${$args{val}} = "$args{addr}";
905 } else {
906 if (${$args{val}} =~ /\./) {
907 # looks like a v4 or fragment
908 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
909 # woo! a complete IP! validate it and normalize, or fail.
910 $args{addr} = NetAddr::IP->new(${$args{val}})
911 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
912 ${$args{val}} = "$args{addr}";
913 } else {
914 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
915 }
916 } elsif (${$args{val}} =~ /[a-f:]/) {
917 # looks like a v6 or fragment
918 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
919 if ($args{addr}) {
920 if ($args{addr}->addr =~ /^0/) {
921 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
922 } else {
923 ${$args{val}} = "$args{addr}";
924 }
925 }
926 } else {
927 # bare number (probably). These could be v4 or v6, so we'll
928 # expand on these on creation of a reverse zone.
929 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
930 }
931 }
932##fixme: validate %-patterns?
933
934# Unlike single PTR records, there is absolutely no way to sanely support multiple
935# PTR templates for the same block, since they expect to expand to all the individual
936# IPs on export. Nested templates should be supported though.
937
938 my @checkvals = (${$args{val}});
939 if (${$args{val}} =~ /,/) {
940 # push . and :: variants into checkvals if val has ,
941 my $tmp;
942 ($tmp = ${$args{val}}) =~ s/,/./;
943 push @checkvals, $tmp;
944 ($tmp = ${$args{val}}) =~ s/,/::/;
945 push @checkvals, $tmp;
946 }
947##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
948# Per Netblock such that they don't conflict on export
949 my $typeck;
950# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
951 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
952# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
953 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
954# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
955 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
956 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
957 "AND (type=65282 OR $typeck)");
958 foreach my $checkme (@checkvals) {
959 $pcsth->execute($checkme);
960 my ($rc) = $pcsth->fetchrow_array;
961 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
962 }
963
964 } else {
965 return ('FAIL', "Forward zones cannot contain PTR records");
966 }
967
968 return ('OK','OK');
969} # done PTR template record
970
971# A+PTR template record
972sub _validate_65283 {
973 my $self = shift;
974 my $dbh = $self->{dbh};
975
976 my %args = @_;
977
978 my ($code,$msg) = ('OK','OK');
979
980##fixme: need to fiddle things since A+PTR templates are acceptable in live
981# forward zones but not default records
982 if ($args{defrec} eq 'n') {
983 if ($args{revrec} eq 'n') {
984 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
985 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
986 return ($code,$msg) if $code eq 'FAIL';
987
988 # Check if the requested reverse zone exists - note, an IP fragment won't
989 # work here since we don't *know* which parent to put it in.
990 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
991 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
992 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
993 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
994 if (!$revid) {
995 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
996 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
997##fixme: add A template, AAAA template types?
998# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
999 return ('FAIL', $msg);
1000 }
1001
1002 # Add reverse zone ID to field list and values
1003 ${$args{fields}} .= "rdns_id,";
1004 push @{$args{vallist}}, $revid;
1005
1006 } else {
1007 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
1008 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1009 ${$args{val}} = "$args{addr}";
1010
1011 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1012 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1013 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1014 $msg .= "\n$addmsg" if $code eq 'WARN';
1015 $msg = $addmsg if $code eq 'OK';
1016 ${$args{rectype}} = 65282;
1017 return ('WARN', $msg);
1018 }
1019
1020 # Add domain ID to field list and values
1021 ${$args{fields}} .= "domain_id,";
1022 push @{$args{vallist}}, ${$args{domid}};
1023 }
1024
1025 } else {
1026 my ($code,$msg) = $self->_validate_65282(%args);
1027 return ($code, $msg) if $code eq 'FAIL';
1028 # get domain, check against ${$args{name}}
1029 }
1030
1031 return ('OK','OK');
1032} # done AAAA+PTR template record
1033
1034# AAAA+PTR template record
1035sub _validate_65284 {
1036 return ('OK','OK');
1037} # done AAAA+PTR template record
1038
1039# Delegation record
1040# This is essentially a specialized clone of the NS record, primarily useful
1041# for delegating IPv4 sub-/24 reverse blocks
1042sub _validate_65285 {
1043 my $self = shift;
1044 my $dbh = $self->{dbh};
1045
1046 my %args = @_;
1047
1048# Almost, but not quite, identical to NS record validation.
1049
1050 # Check that the target of the record is within the parent.
1051 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
1052 if ($args{defrec} eq 'n') {
1053 # Check if IP/address/zone/"subzone" is within the parent
1054 if ($args{revrec} eq 'y') {
1055 my $tmpip = NetAddr::IP->new(${$args{val}});
1056 my $pname = $self->revName($args{id});
1057 return ('FAIL',"${$args{val}} not within $pname")
1058 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
1059 # Normalize
1060 ${$args{val}} = "$tmpip";
1061 } else {
1062 my $pname = $self->domainName($args{id});
1063 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
1064 }
1065 } else {
1066 return ('FAIL',"Delegation records are not permitted in default record sets");
1067 }
1068 return ('OK','OK');
1069}
1070
1071
1072##
1073## Record data substitution subs
1074##
1075
1076# Replace ZONE in hostname, or create (most of) the actual proper zone name
1077sub _ZONE {
1078 my $zone = shift;
1079 my $string = shift;
1080 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
1081 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
1082
1083 my $prefix;
1084
1085 $string =~ s/,/./ if !$zone->{isv6};
1086 $string =~ s/,/::/ if $zone->{isv6};
1087
1088 # Subbing ZONE in the host. We need to properly ID the netblock range
1089 # The subbed text should have "network IP with trailing zeros stripped" for
1090 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
1091 # For blocks that do NOT line up on these boundaries, we take the most
1092 # significant octet or 16-bit chunk of the "broadcast" IP and append it
1093 # after a double-dash
1094 # ie:
1095 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1096 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1097 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1098 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1099 # Similar for v6
1100
1101 if (!$zone->{isv6}) { # IPv4
1102
1103 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1104 # a funky subnet that had host bits set.
1105 my $bc = $zone->broadcast->addr;
1106
1107 if ($zone->masklen > 24) {
1108 $bc =~ s/^\d+\.\d+\.\d+\.//;
1109 } elsif ($zone->masklen > 16) {
1110 $prefix =~ s/\.0$//;
1111 $bc =~ s/^\d+\.\d+\.//;
1112 } elsif ($zone->masklen > 8) {
1113 $bc =~ s/^\d+\.//;
1114 $prefix =~ s/\.0\.0$//;
1115 } else {
1116 $prefix =~ s/\.0\.0\.0$//;
1117 }
1118 if ($zone->masklen % 8) {
1119 $bc =~ s/(\.255)+$//;
1120 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1121 }
1122 if ($fr eq 'f') {
1123 $prefix =~ s/\.+/$sep/g;
1124 } else {
1125 $prefix = join($sep, reverse(split(/\./, $prefix)));
1126 }
1127
1128 } else { # IPv6
1129
1130 if ($fr eq 'f') {
1131
1132 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1133 # a funky subnet that had host bits set.
1134 my $bc = $zone->broadcast->addr;
1135 if (($zone->masklen % 16) != 0) {
1136 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1137 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1138 $prefix =~ s/:0$//;
1139 $bc =~ s/:ffff$//;
1140 }
1141 # Strip the leading 16-bit chunks off the front of the broadcast IP
1142 $bc =~ s/^([a-f0-9]+:)+//;
1143 # Append the remaining 16-bit chunk to the prefix after "--"
1144 $prefix .= "--$bc";
1145 } else {
1146 # Strip off :0 from the end until we reach the netblock length.
1147 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1148 $prefix =~ s/:0$//;
1149 }
1150 }
1151 # Actually deal with the separator
1152 $prefix =~ s/:/$sep/g;
1153
1154 } else { # $fr eq 'f'
1155
1156 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1157 # a funky subnet that had host bits set.
1158 my $bc = $zone->broadcast->full;
1159 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1160 $bc =~ s/://g;
1161 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1162 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1163 $prefix =~ s/0$//;
1164 $bc =~ s/f$//;
1165 }
1166 # Split and reverse the order of the nibbles in the network/broadcast IPs
1167 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1168 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1169 my @nbits = reverse split //, $prefix;
1170 my @bbits = reverse split //, $bc;
1171 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1172 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1173 # Glue it back together
1174 $prefix = join($sep, @nbits);
1175
1176 } # $fr ne 'f'
1177
1178 } # $zone->{isv6}
1179
1180 # Do the substitution, finally
1181 $string =~ s/ZONE/$prefix/;
1182 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1183 return $string;
1184} # done _ZONE()
1185
1186# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1187# given the .arpa zone name, return the CIDR netblock the zone is for.
1188# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1189# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1190# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1191sub _zone2cidr {
1192 my $zone = shift;
1193
1194 my $cidr;
1195 my $tmpcidr;
1196 my $warnmsg = '';
1197
1198 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1199 # v4 revzone, formal zone name type
1200 my $tmpzone = $zone;
1201 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name [$tmpzone]")
1202 if $tmpzone !~ m{^(?:\d+[/-])?[\d\.]+\.in-addr\.arpa\.?$};
1203 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1204
1205 # Snag the octet pieces
1206 my @octs = split /\./, $tmpzone;
1207
1208 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1209 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1210 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1211 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1212 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1213 );
1214
1215 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1216 # Need to take the size of the range to offset the basic octet-based mask length,
1217 # and make sure the first number in the range gets used as the network address for the block
1218 # Alternate form: The second number is actually the real netmask, not the end of the range.
1219 my $masklen = 0;
1220 if ($octs[0] =~ m{^((\d+)[/-](\d+))$}) { # take the range...
1221 if (24 < $3 && $3 < 31) {
1222 # we have a real netmask
1223 $masklen = -$maskmap{$3};
1224 } else {
1225 # we have a range. NB: only real CIDR ranges are supported
1226 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1227 }
1228 $octs[0] = $2; # set the base octet of the range...
1229 }
1230 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1231
1232# arguably we should only allow sub-octet range/mask in-addr.arpa
1233# specifications in the least significant octet, but the code is
1234# simpler if we deal with sub-octet delegations at any level.
1235
1236 # Now we find the "true" mask with the aid of the "base" calculated above
1237 if ($#octs == 0) {
1238 $masklen += 8;
1239 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1240 } elsif ($#octs == 1) {
1241 $masklen += 16;
1242 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1243 } elsif ($#octs == 2) {
1244 $masklen += 24;
1245 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1246 } else {
1247 $masklen += 32;
1248 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1249 }
1250
1251 } elsif ($zone =~ /\.ip6\.arpa\.?$/) {
1252 # v6 revzone, formal zone name type
1253 my $tmpzone = $zone;
1254##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1255 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name [$tmpzone]")
1256 if $tmpzone !~ /^[a-fA-F\d\.]+\.ip6\.arpa\.?$/;
1257 $tmpzone =~ s/\.ip6\.arpa\.?//;
1258 my @quads = reverse(split(/\./, $tmpzone));
1259 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1260 my $nc;
1261 foreach (@quads) {
1262 $tmpcidr .= $_;
1263 $tmpcidr .= ":" if ++$nc % 4 == 0 && $nc < $#quads;
1264 }
1265 my $nq = 1 if $nc % 4 != 0;
1266 my $mask = $nc * 4; # need to do this here because we probably increment it below
1267 while ($nc++ % 4 != 0) {
1268 $tmpcidr .= "0";
1269 }
1270 # polish it off with trailing ::/mask if this is a CIDR block instead of an IP
1271 $tmpcidr .= "::/$mask" if $mask != 128;
1272 }
1273
1274 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1275 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1276 unless $cidr = NetAddr::IP->new($tmpcidr);
1277
1278 if ($warnmsg) {
1279 $errstr = $warnmsg;
1280 return ('WARN', $cidr);
1281 }
1282 return ('OK', $cidr);
1283##fixme: use wantarray() to decide what to return?
1284} # done _zone2cidr()
1285
1286# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1287# really have a sane way to handle this type of expansion at the moment
1288# due to the size of the address space.
1289# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1290sub _template4_expand {
1291 my $tmpl = shift;
1292 my $ip = shift;
1293
1294 my @ipparts = split /\./, $ip;
1295 my @iphex;
1296 my @ippad;
1297 for (@ipparts) {
1298 push @iphex, sprintf("%x", $_);
1299 push @ippad, sprintf("%0.3u", $_);
1300 }
1301
1302 # IP substitutions in template records:
1303 #major patterns:
1304 #dashed IP, forward and reverse
1305 #underscoreed IP, forward and reverse
1306 #dotted IP, forward and reverse (even if forward is... dumb)
1307 # -> %r for reverse, %i for forward, leading -, _, or . to indicate separator, defaults to -
1308 # %r or %-r => %4d-%3d-%2d-%1d
1309 # %_r => %4d_%3d_%2d_%1d
1310 # %.r => %4d.%3d.%2d.%1d
1311 # %i or %-i => %1d-%2d-%3d-%4d
1312 # %_i => %1d_%2d_%3d_%4d
1313 # %.i => %1d.%2d.%3d.%4d
1314 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1315 $$tmpl =~ s/\%([-._])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1316 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1317 $$tmpl =~ s/\%([-._])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1318
1319 #hex-coded IP
1320 # %h
1321 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1322
1323 #IP as decimal-coded 32-bit value
1324 # %d
1325 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1326 $$tmpl =~ s/\%d/$iptmp/g;
1327
1328 #minor patterns (per-octet)
1329 # %[1234][dh0]
1330 #octet
1331 #hex-coded octet
1332 #0-padded octet
1333 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1334 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1335 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1336} # _template4_expand()
1337
1338# Broad syntactic check on the hostname. Checks for valid characters, correctly-expandable template patterns.
1339# Takes the hostname, type, and live/default and forward/reverse flags
1340# Returns true/false, sets errstr on failures
1341sub _check_hostname_form {
1342 my ($hname,$rectype,$defrec,$revrec) = @_;
1343
1344 if ($hname =~ /\%/ && ($rectype == 65282 || $rectype == 65283) ) {
1345 my $tmphost = $hname;
1346 # we don't actually need to test with the real IP passed; that saves a bit of fiddling.
1347 _template4_expand(\$tmphost, '10.10.10.10');
1348 if ($tmphost =~ /\%/) {
1349 $errstr = "Invalid template $hname";
1350 return;
1351 }
1352 } elsif ($revrec eq 'y') {
1353 # Reverse zones don't support @ in hostnames
1354 # Also skip failure on revzone TXT records; the hostname contains the TXT content in that case.
1355 if ($rectype != $reverse_typemap{TXT} && lc($hname) !~ /^[0-9a-z_.-]+$/) {
1356 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1357 return;
1358 }
1359 } else {
1360 if (lc($hname) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+|@)$/) {
1361 # Don't mention @, because it would be far too wordy to explain the nuance of @
1362 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1363 return;
1364 }
1365 }
1366 return 1;
1367} # _check_hostname_form()
1368
1369
1370##
1371## Initialization and cleanup subs
1372##
1373
1374## DNSDB::__cfgload()
1375# Private sub to parse a config file and load it into %config
1376# Takes a filename and a hashref to put the parsed entries in
1377sub __cfgload {
1378 $errstr = '';
1379 my $cfgfile = shift;
1380 my $cfg = shift;
1381
1382 if (open CFG, "<$cfgfile") {
1383 while (<CFG>) {
1384 chomp;
1385 s/^\s*//;
1386 next if /^#/;
1387 next if /^$/;
1388# hmm. more complex bits in this file might require [heading] headers, maybe?
1389# $mode = $1 if /^\[(a-z)+]/;
1390 # DB connect info
1391 $cfg->{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1392 $cfg->{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1393 $cfg->{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1394 $cfg->{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1395 # Mail settings
1396 $cfg->{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1397 $cfg->{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1398 $cfg->{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1399 $cfg->{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1400 $cfg->{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1401 $cfg->{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1402 # session - note this is fed directly to CGI::Session
1403 $cfg->{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1404 $cfg->{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1405 # misc
1406 $cfg->{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1407 $cfg->{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1408 $cfg->{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1409 $cfg->{usecache} = $1 if m{^usecache\s*=\s*([a-z01]+)}i;
1410 $cfg->{force_refresh} = $1 if /^force_refresh\s*=\s*([a-z01]+)/i;
1411 $cfg->{lowercase} = $1 if /^lowercase\s*=\s*([a-z01]+)/i;
1412 $cfg->{showrev_arpa} = $1 if /^showrev_arpa\s*=\s*([a-z]+)/i;
1413# not supported in dns.cgi yet
1414# $cfg->{templatedir} = $1 if m{^templatedir\s*=\s*([a-z0-9/_.-]+)}i;
1415# $cfg->{templateoverride} = $1 if m{^templateoverride\s*=\s*([a-z0-9/_.-]+)}i;
1416 # RPC options
1417 $cfg->{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1418 $cfg->{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1419 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1420 my @ips = split /[,\s]+/, $tmp;
1421 my $rpcsys = shift @ips;
1422 push @{$cfg->{rpcacl}{$rpcsys}}, @ips;
1423 }
1424 }
1425 close CFG;
1426 } else {
1427 $errstr = "Couldn't load configuration file $cfgfile: $!";
1428 return;
1429 }
1430 return 1;
1431} # end __cfgload()
1432
1433
1434## DNSDB::connectDB()
1435# Creates connection to DNS database.
1436# Requires the database name, username, and password.
1437# Returns a handle to the db or undef on failure.
1438# Set up for a PostgreSQL db; could be any transactional DBMS with the
1439# right changes.
1440# Called by new(); not intended to be called publicly.
1441sub connectDB {
1442 $errstr = '';
1443 my $dbname = shift;
1444 my $user = shift;
1445 my $pass = shift;
1446 my $dbh;
1447 my $DSN = "DBI:Pg:dbname=$dbname";
1448
1449 my $host = shift;
1450 $DSN .= ";host=$host" if $host;
1451
1452# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1453# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1454 $dbh = DBI->connect($DSN, $user, $pass, {
1455 AutoCommit => 1,
1456 PrintError => 0
1457 });
1458 if (!$dbh) {
1459 $errstr = $DBI::errstr;
1460 return;
1461 }
1462#) if(!$dbh);
1463
1464 local $dbh->{RaiseError} = 1;
1465
1466 eval {
1467##fixme: initialize the DB if we can't find the table (since, by definition, there's
1468# nothing there if we can't select from it...)
1469 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1470 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1471# return (undef,$DBI::errstr) if $dbh->err;
1472
1473#if ($tblcount == 0) {
1474# # create tables one at a time, checking for each.
1475# return (undef, "check table misc missing");
1476#}
1477
1478# Return here if we can't select.
1479# This should retrieve the dbversion key.
1480 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1481 $sth->execute();
1482# return (undef,$DBI::errstr) if ($sth->err);
1483
1484##fixme: do stuff to the DB on version mismatch
1485# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1486# DB should be downward-compatible; column defaults should give sane (if possibly
1487# useless-and-needs-help) values in columns an older software stack doesn't know about.
1488
1489# See if the select returned anything (or null data). This should
1490# succeed if the select executed, but...
1491 $sth->fetchrow();
1492# return (undef,$DBI::errstr) if ($sth->err);
1493
1494 $sth->finish;
1495
1496 }; # wrapped DB checks
1497 if ($@) {
1498 $errstr = $@;
1499 return;
1500 }
1501
1502# If we get here, we should be OK.
1503 return $dbh;
1504} # end connectDB
1505
1506
1507## DNSDB::finish()
1508# Cleans up after database handles and so on.
1509# Requires a database handle
1510sub finish {
1511 my $self = shift;
1512 $self->{dbh}->disconnect;
1513} # end finish
1514
1515
1516## DNSDB::initGlobals()
1517# Initialize global variables
1518# NB: this does NOT include web-specific session variables!
1519sub initGlobals {
1520 my $self = shift;
1521 my $dbh = $self->{dbh};
1522
1523# load record types from database
1524 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1525 $sth->execute;
1526 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1527 $typemap{$recval} = $recname;
1528 $reverse_typemap{$recname} = $recval;
1529 # now we fill the record validation function hash
1530 if ($stdflag < 5) {
1531 my $fn = "_validate_$recval";
1532 $validators{$recval} = \&$fn;
1533 } else {
1534 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1535 $validators{$recval} = eval $fn;
1536 }
1537 }
1538} # end initGlobals
1539
1540
1541## DNSDB::initRPC()
1542# Takes a remote username and remote fullname.
1543# Sets up the RPC logging-pseudouser if needed.
1544# Sets the %userdata hash for logging.
1545# Returns undef on failure
1546sub initRPC {
1547 my $self = shift;
1548 my $dbh = $self->{dbh};
1549 my %args = @_;
1550
1551 return if !$args{username};
1552 return if !$args{fullname};
1553
1554 $args{username} = "$args{username}/$args{rpcsys}";
1555
1556 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1557 " FROM users WHERE username=?", undef, ($args{username}) );
1558 if (!$tmpuser) {
1559 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1560 ($args{username}, $args{fullname}) );
1561 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1562 " FROM users WHERE username=?", undef, ($args{username}) );
1563 }
1564 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
1565 $self->{loguserid} = $tmpuser->{userid};
1566 $self->{logusername} = $tmpuser->{username};
1567 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
1568 return 1 if $tmpuser;
1569} # end initRPC()
1570
1571
1572## DNSDB::login()
1573# Takes a database handle, username and password
1574# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1575# password matches the one on file, and account is not disabled
1576# Returns undef otherwise
1577sub login {
1578 my $self = shift;
1579 my $dbh = $self->{dbh};
1580 my $user = shift;
1581 my $pass = shift;
1582
1583 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1584 " FROM users WHERE username=?",
1585 undef, ($user) );
1586 return if !$userinfo;
1587 return if !$userinfo->{status};
1588
1589 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1590 # native passwords (crypt-md5)
1591 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1592 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1593 # VegaDNS import (hex-coded MD5)
1594 return if $userinfo->{password} ne md5_hex($pass);
1595 } else {
1596 # plaintext (convenient now and then)
1597 return if $userinfo->{password} ne $pass;
1598 }
1599
1600 return $userinfo;
1601} # end login()
1602
1603
1604## DNSDB::initActionLog()
1605# Set up action logging. Takes a database handle and user ID
1606# Sets some internal globals and Does The Right Thing to set up a logging channel.
1607# This sets up _log() to spew out log entries to the defined channel without worrying
1608# about having to open a file or a syslog channel
1609##fixme Need to call _initActionLog_blah() for various logging channels, configured
1610# via dnsdb.conf, in $self->{log_channel} or something
1611# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1612sub initActionLog {
1613 my $self = shift;
1614 my $dbh = $self->{dbh};
1615 my $uid = shift;
1616
1617 return if !$uid;
1618
1619 # snag user info for logging. there's got to be a way to not have to pass this back
1620 # and forth from a caller, but web usage means no persistence we can rely on from
1621 # the server side.
1622 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1623 " FROM users WHERE user_id=?", undef, ($uid));
1624##fixme: errors are unpossible!
1625
1626 $self->{logusername} = $username;
1627 $self->{loguserid} = $uid;
1628 $self->{logfullname} = $fullname;
1629
1630 # convert to real check once we have other logging channels
1631 # if ($self->{log_channel} eq 'sql') {
1632 # Open Log, Sez Me!
1633 # }
1634
1635} # end initActionLog
1636
1637
1638## DNSDB::getPermissions()
1639# Get permissions from DB
1640# Requires DB handle, group or user flag, ID, and hashref.
1641sub getPermissions {
1642 my $self = shift;
1643 my $dbh = $self->{dbh};
1644
1645 my $type = shift;
1646 my $id = shift;
1647 my $hash = shift;
1648
1649 my $sql = qq(
1650 SELECT
1651 p.admin,p.self_edit,
1652 p.group_create,p.group_edit,p.group_delete,
1653 p.user_create,p.user_edit,p.user_delete,
1654 p.domain_create,p.domain_edit,p.domain_delete,
1655 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1656 p.location_create,p.location_edit,p.location_delete,p.location_view
1657 FROM permissions p
1658 );
1659 if ($type eq 'group') {
1660 $sql .= qq(
1661 JOIN groups g ON g.permission_id=p.permission_id
1662 WHERE g.group_id=?
1663 );
1664 } else {
1665 $sql .= qq(
1666 JOIN users u ON u.permission_id=p.permission_id
1667 WHERE u.user_id=?
1668 );
1669 }
1670
1671 my $sth = $dbh->prepare($sql);
1672
1673##fixme? we don't trap other plain SELECT errors
1674 $sth->execute($id);
1675
1676# my $permref = $sth->fetchrow_hashref;
1677# return $permref;
1678# $hash = $permref;
1679# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1680 ($hash->{admin},$hash->{self_edit},
1681 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1682 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1683 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1684 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1685 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1686 ) = $sth->fetchrow_array;
1687
1688} # end getPermissions()
1689
1690
1691## DNSDB::changePermissions()
1692# Update an ACL entry
1693# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1694sub changePermissions {
1695 my $self = shift;
1696 my $dbh = $self->{dbh};
1697 my $type = shift;
1698 my $id = shift;
1699 my $newperms = shift;
1700 my $inherit = shift || 0;
1701
1702 my $resultmsg = '';
1703
1704 # see if we're switching from inherited to custom. for bonus points,
1705 # snag the permid and parent permid anyway, since we'll need the permid
1706 # to set/alter custom perms, and both if we're switching from custom to
1707 # inherited.
1708 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1709 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1710 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1711 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1712 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1713 $sth->execute($id);
1714
1715 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1716
1717# hack phtoui
1718# group id 1 is "special" in that it's it's own parent (err... possibly.)
1719# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1720 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1721
1722 local $dbh->{AutoCommit} = 0;
1723 local $dbh->{RaiseError} = 1;
1724
1725 # Wrap all the SQL in a transaction
1726 eval {
1727 if ($inherit) {
1728
1729 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1730 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1731 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1732
1733 } else {
1734
1735 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1736##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1737# ... if'n'when we have groups with fully inherited permissions.
1738 # SQL is coo
1739 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1740 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1741 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1742 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1743 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1744 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1745 }
1746
1747 # and now set the permissions we were passed
1748 foreach (@permtypes) {
1749 if (defined ($newperms->{$_})) {
1750 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1751 }
1752 }
1753
1754 } # (inherited->)? custom
1755
1756 if ($type eq 'user') {
1757 $resultmsg = "Updated permissions for user $name";
1758 } else {
1759 $resultmsg = "Updated default permissions for group $name";
1760 }
1761 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
1762 $dbh->commit;
1763 }; # end eval
1764 if ($@) {
1765 my $msg = $@;
1766 eval { $dbh->rollback; };
1767 return ('FAIL',"Error changing permissions: $msg");
1768 }
1769
1770 return ('OK',$resultmsg);
1771} # end changePermissions()
1772
1773
1774## DNSDB::comparePermissions()
1775# Compare two permission hashes
1776# Returns '>', '<', '=', '!'
1777sub comparePermissions {
1778 my $self = shift;
1779 my $p1 = shift;
1780 my $p2 = shift;
1781
1782 my $retval = '='; # assume equality until proven otherwise
1783
1784 no warnings "uninitialized";
1785
1786 foreach (@permtypes) {
1787 next if $p1->{$_} == $p2->{$_}; # equal is good
1788 if ($p1->{$_} && !$p2->{$_}) {
1789 if ($retval eq '<') { # if we've already found an unequal pair where
1790 $retval = '!'; # $p2 has more access, and we now find a pair
1791 last; # where $p1 has more access, the overall access
1792 } # is neither greater or lesser, it's unequal.
1793 $retval = '>';
1794 }
1795 if (!$p1->{$_} && $p2->{$_}) {
1796 if ($retval eq '>') { # if we've already found an unequal pair where
1797 $retval = '!'; # $p1 has more access, and we now find a pair
1798 last; # where $p2 has more access, the overall access
1799 } # is neither greater or lesser, it's unequal.
1800 $retval = '<';
1801 }
1802 }
1803 return $retval;
1804} # end comparePermissions()
1805
1806
1807## DNSDB::changeGroup()
1808# Change group ID of an entity
1809# Takes a database handle, entity type, entity ID, and new group ID
1810sub changeGroup {
1811 my $self = shift;
1812 my $dbh = $self->{dbh};
1813 my $type = shift;
1814 my $id = shift;
1815 my $newgrp = shift;
1816
1817##fixme: fail on not enough args
1818 #return ('FAIL', "Missing
1819
1820 return ('FAIL', "Can't change the group of a $type")
1821 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1822
1823 # Collect some names for logging and messages
1824 my $entname;
1825 if ($type eq 'domain') {
1826 $entname = $self->domainName($id);
1827 } elsif ($type eq 'revzone') {
1828 $entname = $self->revName($id);
1829 } elsif ($type eq 'user') {
1830 $entname = $self->userFullName($id, '%u');
1831 } elsif ($type eq 'group') {
1832 $entname = $self->groupName($id);
1833 }
1834
1835 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1836 undef, ($id));
1837 my $oldgname = $self->groupName($oldgid);
1838 my $newgname = $self->groupName($newgrp);
1839
1840 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1841
1842 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1843
1844 # Allow transactions, and raise an exception on errors so we can catch it later.
1845 # Use local to make sure these get "reset" properly on exiting this block
1846 local $dbh->{AutoCommit} = 0;
1847 local $dbh->{RaiseError} = 1;
1848
1849 eval {
1850 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1851 # Log the change in both the old and new groups
1852 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
1853 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
1854 $dbh->commit;
1855 };
1856 if ($@) {
1857 my $msg = $@;
1858 eval { $dbh->rollback; };
1859 if ($self->{log_failures}) {
1860 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
1861 $dbh->commit; # since we enabled transactions earlier
1862 }
1863 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1864 }
1865
1866 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1867} # end changeGroup()
1868
1869
1870##
1871## Processing subs
1872##
1873
1874## DNSDB::addDomain()
1875# Add a domain
1876# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1877# and user info hash (for logging).
1878# Returns a status code and message
1879sub addDomain {
1880 $errstr = '';
1881 my $self = shift;
1882 my $dbh = $self->{dbh};
1883 my $domain = shift;
1884 return ('FAIL',"Domain must not be blank\n") if !$domain;
1885 my $group = shift;
1886 return ('FAIL',"Group must be specified\n") if !defined($group);
1887 my $state = shift;
1888 return ('FAIL',"Domain status must be specified\n") if !defined($state);
1889 my $defloc = shift || '';
1890
1891 $state = 1 if $state =~ /^active$/;
1892 $state = 1 if $state =~ /^on$/;
1893 $state = 0 if $state =~ /^inactive$/;
1894 $state = 0 if $state =~ /^off$/;
1895
1896 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1897
1898 $domain = lc($domain) if $self->{lowercase};
1899
1900 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1901
1902 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
1903 my $dom_id;
1904
1905# quick check to start to see if we've already got one
1906 $sth->execute($domain);
1907 ($dom_id) = $sth->fetchrow_array;
1908
1909 return ('FAIL', "Domain already exists") if $dom_id;
1910
1911 # Allow transactions, and raise an exception on errors so we can catch it later.
1912 # Use local to make sure these get "reset" properly on exiting this block
1913 local $dbh->{AutoCommit} = 0;
1914 local $dbh->{RaiseError} = 1;
1915
1916 # Wrap all the SQL in a transaction
1917 eval {
1918 # insert the domain...
1919 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,?,?)", undef,
1920 ($domain, $group, $state, $defloc));
1921
1922 # get the ID...
1923 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1924 undef, ($domain));
1925
1926 $self->_log(domain_id => $dom_id, group_id => $group,
1927 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
1928
1929 # ... and now we construct the standard records from the default set. NB: group should be variable.
1930 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1931 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl,location)".
1932 " VALUES ($dom_id,?,?,?,?,?,?,?,?)");
1933 $sth->execute($group);
1934 while (my ($host, $type, $val, $dist, $weight, $port, $ttl) = $sth->fetchrow_array()) {
1935 $host =~ s/DOMAIN/$domain/g;
1936 $val =~ s/DOMAIN/$domain/g;
1937 $sth_in->execute($host, $type, $val, $dist, $weight, $port, $ttl, $defloc);
1938 if ($typemap{$type} eq 'SOA') {
1939 my @tmp1 = split /:/, $host;
1940 my @tmp2 = split /:/, $val;
1941 $self->_log(domain_id => $dom_id, group_id => $group,
1942 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1943 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
1944 } else {
1945 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1946 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1947 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1948 $self->_log(domain_id => $dom_id, group_id => $group,
1949 entry => $logentry." $val', TTL $ttl");
1950 }
1951 }
1952
1953 # once we get here, we should have suceeded.
1954 $dbh->commit;
1955 }; # end eval
1956
1957 if ($@) {
1958 my $msg = $@;
1959 eval { $dbh->rollback; };
1960 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
1961 if $self->{log_failures};
1962 $dbh->commit; # since we enabled transactions earlier
1963 return ('FAIL',$msg);
1964 } else {
1965 return ('OK',$dom_id);
1966 }
1967} # end addDomain
1968
1969
1970## DNSDB::delZone()
1971# Delete a forward or reverse zone.
1972# Takes a database handle, zone ID, and forward/reverse flag.
1973# for now, just delete the records, then the domain.
1974# later we may want to archive it in some way instead (status code 2, for example?)
1975sub delZone {
1976 my $self = shift;
1977 my $dbh = $self->{dbh};
1978 my $zoneid = shift;
1979 my $revrec = shift;
1980
1981 # Allow transactions, and raise an exception on errors so we can catch it later.
1982 # Use local to make sure these get "reset" properly on exiting this block
1983 local $dbh->{AutoCommit} = 0;
1984 local $dbh->{RaiseError} = 1;
1985
1986 my $msg = '';
1987 my $failmsg = '';
1988 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
1989
1990 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
1991
1992 # Set this up here since we may use if if $self->{log_failures} is enabled
1993 my %loghash;
1994 $loghash{domain_id} = $zoneid if $revrec eq 'n';
1995 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
1996 $loghash{group_id} = $self->parentID(
1997 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
1998
1999 # Wrap all the SQL in a transaction
2000 eval {
2001 # Disentangle custom record types before removing the
2002 # ones that are only in the zone to be deleted
2003 if ($revrec eq 'n') {
2004 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2005 $failmsg = "Failure converting multizone types to single-zone";
2006 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2007 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2008 $sth->execute(65282, $zoneid, 65283);
2009 $sth->execute(65282, $zoneid, 65284);
2010 $failmsg = "Failure removing domain records";
2011 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2012 $failmsg = "Failure removing domain";
2013 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2014 } else {
2015 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2016 $failmsg = "Failure converting multizone types to single-zone";
2017 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2018 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2019# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2020# $sth->execute(65286?, $zoneid, 65283);
2021# $sth->execute(65286?, $zoneid, 65284);
2022 $failmsg = "Failure removing reverse records";
2023 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2024 $failmsg = "Failure removing reverse zone";
2025 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2026 }
2027
2028 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2029 $loghash{entry} = $msg;
2030 $self->_log(%loghash);
2031
2032 # once we get here, we should have suceeded.
2033 $dbh->commit;
2034 }; # end eval
2035
2036 if ($@) {
2037 $msg = $@;
2038 eval { $dbh->rollback; };
2039 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2040 if ($self->{log_failures}) {
2041 $self->_log(%loghash);
2042 $dbh->commit; # since we enabled transactions earlier
2043 }
2044 return ('FAIL', $loghash{entry});
2045 } else {
2046 return ('OK', $msg);
2047 }
2048
2049} # end delZone()
2050
2051
2052## DNSDB::domainName()
2053# Return the domain name based on a domain ID
2054# Takes a database handle and the domain ID
2055# Returns the domain name or undef on failure
2056sub domainName {
2057 $errstr = '';
2058 my $self = shift;
2059 my $dbh = $self->{dbh};
2060 my $domid = shift;
2061 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2062 $errstr = $DBI::errstr if !$domname;
2063 return $domname if $domname;
2064} # end domainName()
2065
2066
2067## DNSDB::revName()
2068# Return the reverse zone name based on an rDNS ID
2069# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2070# instead of the formal .arpa zone name
2071# Returns the reverse zone name or undef on failure
2072sub revName {
2073 $errstr = '';
2074 my $self = shift;
2075 my $dbh = $self->{dbh};
2076 my $revid = shift;
2077 my $cidrflag = shift || 'n';
2078 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2079 $errstr = $DBI::errstr if !$revname;
2080 my $tmp = new NetAddr::IP $revname;
2081 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2082 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2083 return $revname if $revname;
2084} # end revName()
2085
2086
2087## DNSDB::domainID()
2088# Takes a database handle and domain name
2089# Returns the domain ID number
2090sub domainID {
2091 $errstr = '';
2092 my $self = shift;
2093 my $dbh = $self->{dbh};
2094 my $domain = shift;
2095 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2096 undef, ($domain) );
2097 if (!$domid) {
2098 if ($dbh->err) {
2099 $errstr = $DBI::errstr;
2100 } else {
2101 $errstr = "Domain $domain not present";
2102 }
2103 }
2104 return $domid if $domid;
2105} # end domainID()
2106
2107
2108## DNSDB::revID()
2109# Takes a database handle and reverse zone name
2110# Returns the rDNS ID number
2111sub revID {
2112 $errstr = '';
2113 my $self = shift;
2114 my $dbh = $self->{dbh};
2115 my $revzone = shift;
2116 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2117 if (!$revid) {
2118 if ($dbh->err) {
2119 $errstr = $DBI::errstr;
2120 } else {
2121 $errstr = "Reverse zone $revzone not present";
2122 }
2123 }
2124 return $revid if $revid;
2125} # end revID()
2126
2127
2128## DNSDB::addRDNS
2129# Adds a reverse DNS zone
2130# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2131# and boolean(ish) state (active/inactive)
2132# Returns a status code and message
2133sub addRDNS {
2134 my $self = shift;
2135 my $dbh = $self->{dbh};
2136 my $zone = shift;
2137
2138 # Autodetect formal .arpa zones
2139 if ($zone =~ /\.arpa\.?$/) {
2140 my $code;
2141 ($code,$zone) = _zone2cidr($zone);
2142 return ('FAIL', $zone) if $code eq 'FAIL';
2143 }
2144 $zone = NetAddr::IP->new($zone);
2145
2146 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2147 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2148 my $group = shift;
2149 my $state = shift;
2150 my $defloc = shift || '';
2151
2152 $state = 1 if $state =~ /^active$/;
2153 $state = 1 if $state =~ /^on$/;
2154 $state = 0 if $state =~ /^inactive$/;
2155 $state = 0 if $state =~ /^off$/;
2156
2157 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2158
2159# quick check to start to see if we've already got one
2160 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2161
2162 return ('FAIL', "Zone already exists") if $rdns_id;
2163
2164 # Allow transactions, and raise an exception on errors so we can catch it later.
2165 # Use local to make sure these get "reset" properly on exiting this block
2166 local $dbh->{AutoCommit} = 0;
2167 local $dbh->{RaiseError} = 1;
2168
2169 my $warnstr = '';
2170 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2171 # wrong, we should have a value to override this anyway.
2172
2173 # Wrap all the SQL in a transaction
2174 eval {
2175 # insert the zone...
2176 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2177 ($zone, $group, $state, $defloc) );
2178
2179 # get the ID...
2180 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2181
2182 $self->_log(rdns_id => $rdns_id, group_id => $group,
2183 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2184
2185 # ... and now we construct the standard records from the default set. NB: group should be variable.
2186 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2187 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2188 " VALUES ($rdns_id,?,?,?,?,?,?)");
2189 $sth->execute($group);
2190 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2191 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2192 if ($zone->{isv6}) {
2193 next if ($type == 65280 || $type == 65283);
2194 } else {
2195 next if ($type == 65281 || $type == 65284);
2196 }
2197
2198 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2199
2200 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2201 # On failure, tack a note on to a warning string and continue without adding this record.
2202 # While we're at it, we substitute $zone for ZONE in the value.
2203 if ($val eq 'ZONE') {
2204 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2205 next if $revpatt && ($type == 65282 || $type == 65283);
2206##fixme? do we care if we have multiple whole-zone templates?
2207 $val = $zone->network;
2208 } elsif ($val =~ /ZONE/) {
2209 my $tmpval = $val;
2210 $tmpval =~ s/ZONE//;
2211 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2212 # as either v4 or v6. May make this an off-by-default config flag
2213 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2214 if ($type == 12 || $type == 65282) {
2215 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2216 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2217 }
2218 my $addr;
2219 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2220 $val = $addr->addr;
2221 } else {
2222 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2223 next;
2224 }
2225 }
2226
2227 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2228 # NS records get this substitution on the value instead.
2229 $host = _ZONE($zone, $host) if $type != 2;
2230
2231 # Fill in the forward domain ID if we can find it, otherwise:
2232 # Coerce type down to PTR or PTR template if we can't
2233 my $domid = 0;
2234 if ($type >= 65280) {
2235 if (!($domid = $self->_hostparent($host))) {
2236 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2237 $type = $reverse_typemap{PTR};
2238 $domid = 0; # just to be explicit.
2239 }
2240 }
2241
2242 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2243
2244 if ($typemap{$type} eq 'SOA') {
2245 my @tmp1 = split /:/, $host;
2246 my @tmp2 = split /:/, $val;
2247 $self->_log(rdns_id => $rdns_id, group_id => $group,
2248 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2249 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2250 $defttl = $tmp2[3];
2251 } else {
2252 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2253 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2254 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2255 }
2256 }
2257
2258 # Generate record based on provided pattern.
2259 if ($revpatt) {
2260 my $host;
2261 my $type = ($zone->{isv6} ? 65284 : 65283);
2262 my $val = $zone->network;
2263
2264 # Substitute $zone for ZONE in the hostname.
2265 $host = _ZONE($zone, $revpatt);
2266
2267 my $domid = 0;
2268 if (!($domid = $self->_hostparent($host))) {
2269 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2270 $type = 65282;
2271 $domid = 0; # just to be explicit.
2272 }
2273
2274 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2275 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2276 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2277 entry => $logentry." $val', TTL $defttl from pattern");
2278 }
2279
2280 # If there are warnings (presumably about default records skipped for cause) log them
2281 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2282 if $warnstr;
2283
2284 # once we get here, we should have suceeded.
2285 $dbh->commit;
2286 }; # end eval
2287
2288 if ($@) {
2289 my $msg = $@;
2290 eval { $dbh->rollback; };
2291 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2292 if $self->{log_failures};
2293 $dbh->commit; # since we enabled transactions earlier
2294 return ('FAIL',$msg);
2295 } else {
2296 my $retcode = 'OK';
2297 if ($warnstr) {
2298 $resultstr = $warnstr;
2299 $retcode = 'WARN';
2300 }
2301 return ($retcode, $rdns_id);
2302 }
2303
2304} # end addRDNS()
2305
2306
2307## DNSDB::getZoneCount
2308# Get count of zones in group or groups
2309# Takes a database handle and hash containing:
2310# - the "current" group
2311# - an array of "acceptable" groups
2312# - a flag for forward/reverse zones
2313# - Optionally accept a "starts with" and/or "contains" filter argument
2314# Returns an integer count of the resulting zone list.
2315sub getZoneCount {
2316 my $self = shift;
2317 my $dbh = $self->{dbh};
2318
2319 my %args = @_;
2320
2321 # Fail on bad curgroup argument. There's no sane fallback on this one.
2322 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2323 $errstr = "Bad or missing curgroup argument";
2324 return;
2325 }
2326 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2327 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2328 $errstr = "Bad childlist argument";
2329 return;
2330 }
2331
2332 my @filterargs;
2333 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2334 push @filterargs, "^$args{startwith}" if $args{startwith};
2335 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2336 push @filterargs, $args{filter} if $args{filter};
2337
2338 my $sql;
2339 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2340 if ($args{revrec} eq 'n') {
2341 $sql = "SELECT count(*) FROM domains".
2342 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2343 ($args{startwith} ? " AND domain ~* ?" : '').
2344 ($args{filter} ? " AND domain ~* ?" : '');
2345 } else {
2346 $sql = "SELECT count(*) FROM revzones".
2347 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2348 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2349# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2350 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2351 # we want to match both the formal and natural zone name
2352 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2353 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2354# } else {
2355# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2356# }
2357 }
2358 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2359 return $count;
2360} # end getZoneCount()
2361
2362
2363## DNSDB::getZoneList()
2364# Get a list of zones in the specified group(s)
2365# Takes the same arguments as getZoneCount() above
2366# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2367sub getZoneList {
2368 my $self = shift;
2369 my $dbh = $self->{dbh};
2370
2371 my %args = @_;
2372
2373 my @zonelist;
2374
2375 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2376 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2377
2378 # Fail on bad curgroup argument. There's no sane fallback on this one.
2379 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2380 $errstr = "Bad or missing curgroup argument";
2381 return;
2382 }
2383 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2384 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2385 $errstr = "Bad childlist argument";
2386 return;
2387 }
2388
2389 my @filterargs;
2390 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2391 push @filterargs, "^$args{startwith}" if $args{startwith};
2392 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2393 push @filterargs, $args{filter} if $args{filter};
2394
2395 my $sql;
2396 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2397 if ($args{revrec} eq 'n') {
2398 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2399 $sql = "SELECT domain_id AS zoneid,domain AS zone,status,groups.group_name AS group FROM domains".
2400 " INNER JOIN groups ON domains.group_id=groups.group_id".
2401 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2402 ($args{startwith} ? " AND domain ~* ?" : '').
2403 ($args{filter} ? " AND domain ~* ?" : '');
2404 } else {
2405##fixme: arguably startwith here is irrelevant. depends on the UI though.
2406 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2407 $sql = "SELECT rdns_id AS zoneid,revnet AS zone,status,groups.group_name AS group FROM revzones".
2408 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2409 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2410 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2411# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2412 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2413 # we want to match both the formal and natural zone name
2414 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2415 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2416# } else {
2417# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2418# }
2419 }
2420 # A common tail.
2421 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2422 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2423 " OFFSET ".$args{offset}*$self->{perpage});
2424
2425 my @working;
2426 my $zsth = $dbh->prepare($sql);
2427 $zsth->execute(@filterargs);
2428 while (my $zone = $zsth->fetchrow_hashref) {
2429 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2430 my $tmp = new NetAddr::IP $zone->{zone};
2431 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2432 }
2433 push @working, $zone;
2434 }
2435 return \@working;
2436} # end getZoneList()
2437
2438
2439## DNSDB::getZoneLocation()
2440# Retrieve the default location for a zone.
2441# Takes a database handle, forward/reverse flag, and zone ID
2442sub getZoneLocation {
2443 my $self = shift;
2444 my $dbh = $self->{dbh};
2445 my $revrec = shift;
2446 my $zoneid = shift;
2447
2448 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2449 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2450 undef, ($zoneid));
2451 return $loc;
2452} # end getZoneLocation()
2453
2454
2455## DNSDB::addGroup()
2456# Add a group
2457# Takes a database handle, group name, parent group, hashref for permissions,
2458# and optional template-vs-cloneme flag for the default records
2459# Returns a status code and message
2460sub addGroup {
2461 $errstr = '';
2462 my $self = shift;
2463 my $dbh = $self->{dbh};
2464 my $groupname = shift;
2465 my $pargroup = shift;
2466 my $permissions = shift;
2467
2468 # 0 indicates "custom", hardcoded.
2469 # Any other value clones that group's default records, if it exists.
2470 my $inherit = shift || 0;
2471##fixme: need a flag to indicate clone records or <?> ?
2472
2473 # Allow transactions, and raise an exception on errors so we can catch it later.
2474 # Use local to make sure these get "reset" properly on exiting this block
2475 local $dbh->{AutoCommit} = 0;
2476 local $dbh->{RaiseError} = 1;
2477
2478 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2479
2480 return ('FAIL', "Group already exists") if $group_id;
2481
2482 # Wrap all the SQL in a transaction
2483 eval {
2484 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2485
2486 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2487
2488 # We work through the whole set of permissions instead of specifying them so
2489 # that when we add a new permission, we don't have to change the code anywhere
2490 # that doesn't explicitly deal with that specific permission.
2491 my @permvals;
2492 foreach (@permtypes) {
2493 if (!defined ($permissions->{$_})) {
2494 push @permvals, 0;
2495 } else {
2496 push @permvals, $permissions->{$_};
2497 }
2498 }
2499 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2500 undef, ($groupid, @permvals) );
2501 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2502 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2503
2504 # Default records
2505 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2506 "VALUES ($groupid,?,?,?,?,?,?,?)");
2507 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2508 "VALUES ($groupid,?,?,?,?)");
2509 if ($inherit) {
2510 # Duplicate records from parent. Actually relying on inherited records feels
2511 # very fragile, and it would be problematic to roll over at a later time.
2512 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2513 $sth2->execute($pargroup);
2514 while (my @clonedata = $sth2->fetchrow_array) {
2515 $sthf->execute(@clonedata);
2516 }
2517 # And now the reverse records
2518 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2519 $sth2->execute($pargroup);
2520 while (my @clonedata = $sth2->fetchrow_array) {
2521 $sthr->execute(@clonedata);
2522 }
2523 } else {
2524##fixme: Hardcoding is Bad, mmmmkaaaay?
2525 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2526 # could load from a config file, but somewhere along the line we need hardcoded bits.
2527 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2528 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2529 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2530 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2531 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2532 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2533 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2534 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2535 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2536 }
2537
2538 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2539
2540 # once we get here, we should have suceeded.
2541 $dbh->commit;
2542 }; # end eval
2543
2544 if ($@) {
2545 my $msg = $@;
2546 eval { $dbh->rollback; };
2547 if ($self->{log_failures}) {
2548 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2549 $dbh->commit;
2550 }
2551 return ('FAIL',$msg);
2552 }
2553
2554 return ('OK','OK');
2555} # end addGroup()
2556
2557
2558## DNSDB::delGroup()
2559# Delete a group.
2560# Takes a group ID
2561# Returns a status code and message
2562sub delGroup {
2563 my $self = shift;
2564 my $dbh = $self->{dbh};
2565 my $groupid = shift;
2566
2567 # Allow transactions, and raise an exception on errors so we can catch it later.
2568 # Use local to make sure these get "reset" properly on exiting this block
2569 local $dbh->{AutoCommit} = 0;
2570 local $dbh->{RaiseError} = 1;
2571
2572##fixme: locate "knowable" error conditions and deal with them before the eval
2573# ... or inside, whatever.
2574# -> domains still exist in group
2575# -> ...
2576 my $failmsg = '';
2577 my $resultmsg = '';
2578
2579 # collect some pieces for logging and error messages
2580 my $groupname = $self->groupName($groupid);
2581 my $parid = $self->parentID(id => $groupid, type => 'group');
2582
2583 # Wrap all the SQL in a transaction
2584 eval {
2585 # Check for Things in the group
2586 $failmsg = "Can't remove group $groupname";
2587 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2588 die "$grpcnt groups still in group\n" if $grpcnt;
2589 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2590 die "$domcnt domains still in group\n" if $domcnt;
2591 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
2592 die "$revcnt reverse zones still in group\n" if $revcnt;
2593 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2594 die "$usercnt users still in group\n" if $usercnt;
2595
2596 $failmsg = "Failed to delete default records for $groupname";
2597 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2598 $failmsg = "Failed to delete default reverse records for $groupname";
2599 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2600 $failmsg = "Failed to remove group $groupname";
2601 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2602
2603 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
2604 $resultmsg = "Deleted group $groupname";
2605
2606 # once we get here, we should have suceeded.
2607 $dbh->commit;
2608 }; # end eval
2609
2610 if ($@) {
2611 my $msg = $@;
2612 eval { $dbh->rollback; };
2613 if ($self->{log_failures}) {
2614 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
2615 $dbh->commit; # since we enabled transactions earlier
2616 }
2617 return ('FAIL',"$failmsg: $msg");
2618 }
2619
2620 return ('OK',$resultmsg);
2621} # end delGroup()
2622
2623
2624## DNSDB::getChildren()
2625# Get a list of all groups whose parent^n is group <n>
2626# Takes a database handle, group ID, reference to an array to put the group IDs in,
2627# and an optional flag to return only immediate children or all children-of-children
2628# default to returning all children
2629# Calls itself
2630sub getChildren {
2631 $errstr = '';
2632 my $self = shift;
2633 my $dbh = $self->{dbh};
2634 my $rootgroup = shift;
2635 my $groupdest = shift;
2636 my $immed = shift || 'all';
2637
2638 # special break for default group; otherwise we get stuck.
2639 if ($rootgroup == 1) {
2640 # by definition, group 1 is the Root Of All Groups
2641 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2642 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2643 $sth->execute;
2644 while (my @this = $sth->fetchrow_array) {
2645 push @$groupdest, @this;
2646 }
2647 } else {
2648 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2649 $sth->execute($rootgroup);
2650 return if $sth->rows == 0;
2651 my @grouplist;
2652 while (my ($group) = $sth->fetchrow_array) {
2653 push @$groupdest, $group;
2654 $self->getChildren($group, $groupdest) if $immed eq 'all';
2655 }
2656 }
2657} # end getChildren()
2658
2659
2660## DNSDB::groupName()
2661# Return the group name based on a group ID
2662# Takes a database handle and the group ID
2663# Returns the group name or undef on failure
2664sub groupName {
2665 $errstr = '';
2666 my $self = shift;
2667 my $dbh = $self->{dbh};
2668 my $groupid = shift;
2669 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2670 $sth->execute($groupid);
2671 my ($groupname) = $sth->fetchrow_array();
2672 $errstr = $DBI::errstr if !$groupname;
2673 return $groupname if $groupname;
2674} # end groupName
2675
2676
2677## DNSDB::getGroupCount()
2678# Get count of subgroups in group or groups
2679# Takes a database handle and hash containing:
2680# - the "current" group
2681# - an array of "acceptable" groups
2682# - Optionally accept a "starts with" and/or "contains" filter argument
2683# Returns an integer count of the resulting group list.
2684sub getGroupCount {
2685 my $self = shift;
2686 my $dbh = $self->{dbh};
2687
2688 my %args = @_;
2689
2690 # Fail on bad curgroup argument. There's no sane fallback on this one.
2691 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2692 $errstr = "Bad or missing curgroup argument";
2693 return;
2694 }
2695 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2696 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2697 $errstr = "Bad childlist argument";
2698 return;
2699 }
2700
2701 my @filterargs;
2702 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2703 push @filterargs, "^$args{startwith}" if $args{startwith};
2704 push @filterargs, $args{filter} if $args{filter};
2705
2706 my $sql = "SELECT count(*) FROM groups ".
2707 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2708 ($args{startwith} ? " AND group_name ~* ?" : '').
2709 ($args{filter} ? " AND group_name ~* ?" : '');
2710 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2711 $errstr = $dbh->errstr if !$count;
2712 return $count;
2713} # end getGroupCount
2714
2715
2716## DNSDB::getGroupList()
2717# Get a list of sub^n-groups in the specified group(s)
2718# Takes the same arguments as getGroupCount() above
2719# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2720sub getGroupList {
2721 my $self = shift;
2722 my $dbh = $self->{dbh};
2723
2724 my %args = @_;
2725
2726 # Fail on bad curgroup argument. There's no sane fallback on this one.
2727 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2728 $errstr = "Bad or missing curgroup argument";
2729 return;
2730 }
2731 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2732 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2733 $errstr = "Bad childlist argument";
2734 return;
2735 }
2736
2737 my @filterargs;
2738 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2739 push @filterargs, "^$args{startwith}" if $args{startwith};
2740 push @filterargs, $args{filter} if $args{filter};
2741
2742 # protection against bad or missing arguments
2743 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2744 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
2745 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2746
2747 # munge sortby for columns in database
2748 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2749 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2750
2751 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
2752 FROM groups g
2753 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2754 ).
2755 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2756 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2757 ($args{filter} ? " AND g.group_name ~* ?" : '').
2758 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2759 " ORDER BY $args{sortby} $args{sortorder} ".
2760 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
2761 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2762 $errstr = $dbh->errstr if !$glist;
2763
2764 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
2765 # this means there's lots of crunching needed to trim the result set back down.
2766 # So instead we track the order of the groups, and push the counts into the
2767 # arrayref result separately.
2768##fixme: put this whole sub in a transaction? might be
2769# needed for accurate results on very busy systems.
2770##fixme: large group lists need prepared statements?
2771#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
2772#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
2773#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
2774 foreach (@{$glist}) {
2775 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
2776 $$_{nusers} = $ucnt;
2777 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
2778 $$_{ndomains} = $dcnt;
2779 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
2780 $$_{nrevzones} = $rcnt;
2781 }
2782
2783 return $glist;
2784} # end getGroupList
2785
2786
2787## DNSDB::groupID()
2788# Return the group ID based on the group name
2789# Takes a database handle and the group name
2790# Returns the group ID or undef on failure
2791sub groupID {
2792 $errstr = '';
2793 my $self = shift;
2794 my $dbh = $self->{dbh};
2795 my $group = shift;
2796 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
2797 $errstr = $DBI::errstr if !$grpid;
2798 return $grpid if $grpid;
2799} # end groupID()
2800
2801
2802## DNSDB::addUser()
2803# Add a user.
2804# Takes a DB handle, username, group ID, password, state (active/inactive).
2805# Optionally accepts:
2806# user type (user/admin) - defaults to user
2807# permissions string - defaults to inherit from group
2808# three valid forms:
2809# i - Inherit permissions
2810# c:<user_id> - Clone permissions from <user_id>
2811# C:<permission list> - Set these specific permissions
2812# first name - defaults to username
2813# last name - defaults to blank
2814# phone - defaults to blank (could put other data within column def)
2815# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2816sub addUser {
2817 $errstr = '';
2818 my $self = shift;
2819 my $dbh = $self->{dbh};
2820 my $username = shift;
2821 my $group = shift;
2822 my $pass = shift;
2823 my $state = shift;
2824
2825 return ('FAIL', "Missing one or more required entries") if !defined($state);
2826 return ('FAIL', "Username must not be blank") if !$username;
2827
2828 # Munge in some alternate state values
2829 $state = 1 if $state =~ /^active$/;
2830 $state = 1 if $state =~ /^on$/;
2831 $state = 0 if $state =~ /^inactive$/;
2832 $state = 0 if $state =~ /^off$/;
2833
2834 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2835
2836 my $permstring = shift || 'i'; # default is to inhert permissions from group
2837
2838 my $fname = shift || $username;
2839 my $lname = shift || '';
2840 my $phone = shift || ''; # not going format-check
2841
2842 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2843 my $user_id;
2844
2845# quick check to start to see if we've already got one
2846 $sth->execute($username);
2847 ($user_id) = $sth->fetchrow_array;
2848
2849 return ('FAIL', "User already exists") if $user_id;
2850
2851 # Allow transactions, and raise an exception on errors so we can catch it later.
2852 # Use local to make sure these get "reset" properly on exiting this block
2853 local $dbh->{AutoCommit} = 0;
2854 local $dbh->{RaiseError} = 1;
2855
2856 # Wrap all the SQL in a transaction
2857 eval {
2858 # insert the user... note we set inherited perms by default since
2859 # it's simple and cleans up some other bits of state
2860##fixme: need better handling of case of inherited or missing (!!) permissions entries
2861 my $sth = $dbh->prepare("INSERT INTO users ".
2862 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2863 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2864 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2865
2866 # get the ID...
2867 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2868
2869# Permissions! Gotta set'em all!
2870 die "Invalid permission string $permstring\n"
2871 if $permstring !~ /^(?:
2872 i # inherit
2873 |c:\d+ # clone
2874 # custom. no, the leading , is not a typo
2875 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
2876 )$/x;
2877# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2878 if ($permstring ne 'i') {
2879 # for cloned or custom permissions, we have to create a new permissions entry.
2880 my $clonesrc = $group;
2881 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2882 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2883 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2884 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2885 undef, ($user_id,$clonesrc) );
2886 $dbh->do("UPDATE users SET permission_id=".
2887 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2888 "WHERE user_id=?", undef, ($user_id, $user_id) );
2889 }
2890 if ($permstring =~ /^C:/) {
2891 # finally for custom permissions, we set the passed-in permissions (and unset
2892 # any that might have been brought in by the clone operation above)
2893 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2894 undef, ($user_id) );
2895 foreach (@permtypes) {
2896 if ($permstring =~ /,$_/) {
2897 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2898 } else {
2899 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2900 }
2901 }
2902 }
2903
2904 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2905
2906##fixme: add another table to hold name/email for log table?
2907
2908 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
2909 # once we get here, we should have suceeded.
2910 $dbh->commit;
2911 }; # end eval
2912
2913 if ($@) {
2914 my $msg = $@;
2915 eval { $dbh->rollback; };
2916 if ($self->{log_failures}) {
2917 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
2918 $dbh->commit; # since we enabled transactions earlier
2919 }
2920 return ('FAIL',"Error adding user $username: $msg");
2921 }
2922
2923 return ('OK',"User $username ($fname $lname) added");
2924} # end addUser
2925
2926
2927## DNSDB::getUserCount()
2928# Get count of users in group
2929# Takes a database handle and hash containing at least the current group, and optionally:
2930# - a reference list of secondary groups
2931# - a filter string
2932# - a "Starts with" string
2933sub getUserCount {
2934 my $self = shift;
2935 my $dbh = $self->{dbh};
2936
2937 my %args = @_;
2938
2939 # Fail on bad curgroup argument. There's no sane fallback on this one.
2940 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2941 $errstr = "Bad or missing curgroup argument";
2942 return;
2943 }
2944 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2945 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2946 $errstr = "Bad childlist argument";
2947 return;
2948 }
2949
2950 my @filterargs;
2951 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2952 push @filterargs, "^$args{startwith}" if $args{startwith};
2953 push @filterargs, $args{filter} if $args{filter};
2954
2955 my $sql = "SELECT count(*) FROM users ".
2956 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2957 ($args{startwith} ? " AND username ~* ?" : '').
2958 ($args{filter} ? " AND username ~* ?" : '');
2959 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2960 $errstr = $dbh->errstr if !$count;
2961 return $count;
2962} # end getUserCount()
2963
2964
2965## DNSDB::getUserList()
2966# Get list of users
2967# Takes the same arguments as getUserCount() above, plus optional:
2968# - sort field
2969# - sort order
2970# - offset/return-all-everything flag (defaults to $perpage records)
2971sub getUserList {
2972 my $self = shift;
2973 my $dbh = $self->{dbh};
2974
2975 my %args = @_;
2976
2977 # Fail on bad curgroup argument. There's no sane fallback on this one.
2978 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2979 $errstr = "Bad or missing curgroup argument";
2980 return;
2981 }
2982 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2983 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2984 $errstr = "Bad childlist argument";
2985 return;
2986 }
2987
2988 my @filterargs;
2989 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2990 push @filterargs, "^$args{startwith}" if $args{startwith};
2991 push @filterargs, $args{filter} if $args{filter};
2992
2993 # better to request sorts on "simple" names, but it means we need to map it to real columns
2994 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
2995 fname => 'fname');
2996 $args{sortby} = $sortmap{$args{sortby}};
2997
2998 # protection against bad or missing arguments
2999 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3000 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3001 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3002
3003 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3004 "FROM users u ".
3005 "INNER JOIN groups g ON u.group_id=g.group_id ".
3006 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3007 ($args{startwith} ? " AND u.username ~* ?" : '').
3008 ($args{filter} ? " AND u.username ~* ?" : '').
3009 " AND NOT u.type = 'R' ".
3010 " ORDER BY $args{sortby} $args{sortorder} ".
3011 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3012 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3013 $errstr = $dbh->errstr if !$ulist;
3014 return $ulist;
3015} # end getUserList()
3016
3017
3018## DNSDB::getUserDropdown()
3019# Get a list of usernames for use in a dropdown menu.
3020# Takes a database handle, current group, and optional "tag this as selected" flag.
3021# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3022sub getUserDropdown {
3023 my $self = shift;
3024 my $dbh = $self->{dbh};
3025 my $grp = shift;
3026 my $sel = shift || 0;
3027
3028 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3029 $sth->execute($grp);
3030
3031 my @userlist;
3032 while (my ($username,$uid) = $sth->fetchrow_array) {
3033 my %row = (
3034 username => $username,
3035 uid => $uid,
3036 selected => ($sel == $uid ? 1 : 0)
3037 );
3038 push @userlist, \%row;
3039 }
3040 return \@userlist;
3041} # end getUserDropdown()
3042
3043
3044## DNSDB:: updateUser()
3045# Update general data about user
3046sub updateUser {
3047 my $self = shift;
3048 my $dbh = $self->{dbh};
3049
3050##fixme: tweak calling convention so that we can update any given bit of data
3051 my $uid = shift;
3052 my $username = shift;
3053 my $group = shift;
3054 my $pass = shift;
3055 my $state = shift;
3056 my $type = shift || 'u';
3057 my $fname = shift || $username;
3058 my $lname = shift || '';
3059 my $phone = shift || ''; # not going format-check
3060
3061 my $resultmsg = '';
3062
3063 # Munge in some alternate state values
3064 $state = 1 if $state =~ /^active$/;
3065 $state = 1 if $state =~ /^on$/;
3066 $state = 0 if $state =~ /^inactive$/;
3067 $state = 0 if $state =~ /^off$/;
3068
3069 # Allow transactions, and raise an exception on errors so we can catch it later.
3070 # Use local to make sure these get "reset" properly on exiting this block
3071 local $dbh->{AutoCommit} = 0;
3072 local $dbh->{RaiseError} = 1;
3073
3074 my $sth;
3075
3076 # Password can be left blank; if so we assume there's one on file.
3077 # Actual blank passwords are bad, mm'kay?
3078 if (!$pass) {
3079 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3080 } else {
3081 $pass = unix_md5_crypt($pass);
3082 }
3083
3084 eval {
3085 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3086 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3087 $resultmsg = "Updated user info for $username ($fname $lname)";
3088 $self->_log(group_id => $group, entry => $resultmsg);
3089 $dbh->commit;
3090 };
3091 if ($@) {
3092 my $msg = $@;
3093 eval { $dbh->rollback; };
3094 if ($self->{log_failures}) {
3095 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3096 $dbh->commit; # since we enabled transactions earlier
3097 }
3098 return ('FAIL',"Error updating user $username: $msg");
3099 }
3100
3101 return ('OK',$resultmsg);
3102} # end updateUser()
3103
3104
3105## DNSDB::delUser()
3106# Delete a user.
3107# Takes a database handle and user ID
3108# Returns a success/failure code and matching message
3109sub delUser {
3110 my $self = shift;
3111 my $dbh = $self->{dbh};
3112 my $userid = shift;
3113
3114 return ('FAIL',"Bad userid") if !defined($userid);
3115
3116 my $userdata = $self->getUserData($userid);
3117
3118 # Allow transactions, and raise an exception on errors so we can catch it later.
3119 # Use local to make sure these get "reset" properly on exiting this block
3120 local $dbh->{AutoCommit} = 0;
3121 local $dbh->{RaiseError} = 1;
3122
3123 eval {
3124 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3125 $self->_log(group_id => $userdata->{group_id},
3126 entry => "Deleted user ID $userid/".$userdata->{username}.
3127 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3128 $dbh->commit;
3129 };
3130 if ($@) {
3131 my $msg = $@;
3132 eval { $dbh->rollback; };
3133 if ($self->{log_failures}) {
3134 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3135 "$userid/".$userdata->{username}.": $msg");
3136 $dbh->commit;
3137 }
3138 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3139 }
3140
3141 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3142} # end delUser
3143
3144
3145## DNSDB::userFullName()
3146# Return a pretty string!
3147# Takes a user_id and optional printf-ish string to indicate which pieces where:
3148# %u for the username
3149# %f for the first name
3150# %l for the last name
3151# All other text in the passed string will be left as-is.
3152##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3153sub userFullName {
3154 $errstr = '';
3155 my $self = shift;
3156 my $dbh = $self->{dbh};
3157 my $userid = shift;
3158 my $fullformat = shift || '%f %l (%u)';
3159 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3160 $sth->execute($userid);
3161 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3162 $errstr = $DBI::errstr if !$uname;
3163
3164 $fullformat =~ s/\%u/$uname/g;
3165 $fullformat =~ s/\%f/$fname/g;
3166 $fullformat =~ s/\%l/$lname/g;
3167
3168 return $fullformat;
3169} # end userFullName
3170
3171
3172## DNSDB::userStatus()
3173# Sets and/or returns a user's status
3174# Takes a database handle, user ID and optionally a status argument
3175# Returns undef on errors.
3176sub userStatus {
3177 my $self = shift;
3178 my $dbh = $self->{dbh};
3179 my $id = shift;
3180 my $newstatus = shift || 'mu';
3181
3182 return undef if $id !~ /^\d+$/;
3183
3184 my $userdata = $self->getUserData($id);
3185
3186 # Allow transactions, and raise an exception on errors so we can catch it later.
3187 # Use local to make sure these get "reset" properly on exiting this block
3188 local $dbh->{AutoCommit} = 0;
3189 local $dbh->{RaiseError} = 1;
3190
3191 if ($newstatus ne 'mu') {
3192 # ooo, fun! let's see what we were passed for status
3193 eval {
3194 $newstatus = 0 if $newstatus eq 'useroff';
3195 $newstatus = 1 if $newstatus eq 'useron';
3196 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3197
3198 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3199 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3200
3201 my %loghash;
3202 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3203 $loghash{entry} = $resultstr;
3204 $self->_log(%loghash);
3205
3206 $dbh->commit;
3207 };
3208 if ($@) {
3209 my $msg = $@;
3210 eval { $dbh->rollback; };
3211 $resultstr = '';
3212 $errstr = $msg;
3213##fixme: failure logging?
3214 return;
3215 }
3216 }
3217
3218 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3219 return $status;
3220} # end userStatus()
3221
3222
3223## DNSDB::getUserData()
3224# Get misc user data for display
3225sub getUserData {
3226 my $self = shift;
3227 my $dbh = $self->{dbh};
3228 my $uid = shift;
3229
3230 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3231 "FROM users WHERE user_id=?");
3232 $sth->execute($uid);
3233 return $sth->fetchrow_hashref();
3234} # end getUserData()
3235
3236
3237## DNSDB::addLoc()
3238# Add a new location.
3239# Takes a database handle, group ID, short and long description, and a comma-separated
3240# list of IP addresses.
3241# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3242sub addLoc {
3243 my $self = shift;
3244 my $dbh = $self->{dbh};
3245 my $grp = shift;
3246 my $shdesc = shift;
3247 my $comments = shift;
3248 my $iplist = shift;
3249
3250 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3251 $comments = '' if !$comments;
3252 $iplist = '' if !$iplist;
3253
3254 my $loc;
3255
3256 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3257 # for now; 676 locations should satisfy all but the largest of the huge networks.
3258 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3259 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3260
3261# add just after "my $origloc = $loc;":
3262# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3263# # and wrap it around.
3264# # Yes, they skip a couple of possibles. No, I don't care.
3265# $loc = 'aA' if $loc eq 'zz';
3266# $loc = 'Aa' if $loc eq 'zZ';
3267# $loc = 'ZA' if $loc eq 'Zz';
3268# $loc = 'aa' if $loc eq 'ZZ';
3269
3270 # Allow transactions, and raise an exception on errors so we can catch it later.
3271 # Use local to make sure these get "reset" properly on exiting this block
3272 local $dbh->{AutoCommit} = 0;
3273 local $dbh->{RaiseError} = 1;
3274
3275##fixme: There is probably a far better way to do this. Sequential increments
3276# are marginally less stupid that pure random generation though, and the existence
3277# check makes sure we don't stomp on an imported one.
3278
3279 eval {
3280 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3281 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3282 ($loc) = ($loc =~ /^(..)/) if $loc;
3283 my $origloc = $loc;
3284 $loc = 'aa' if !$loc;
3285 # Make a change...
3286 $loc++;
3287 # ... and keep changing if it exists
3288 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3289 $loc++;
3290 ($loc) = ($loc =~ /^(..)/);
3291 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3292##fixme: really need to handle this case faster somehow
3293#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3294 }
3295 # And now we should have a unique location. tinydns fundamentally limits the
3296 # number of these but there's no doc on what characters are valid.
3297 $shdesc = $loc if !$shdesc;
3298 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3299 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3300 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3301 $dbh->commit;
3302 };
3303 if ($@) {
3304 my $msg = $@;
3305 eval { $dbh->rollback; };
3306 if ($self->{log_failures}) {
3307 $shdesc = $loc if !$shdesc;
3308 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3309 $dbh->commit;
3310 }
3311 return ('FAIL',$msg);
3312 }
3313
3314 return ('OK',$loc);
3315} # end addLoc()
3316
3317
3318## DNSDB::updateLoc()
3319# Update details of a location.
3320# Takes a database handle, location ID, group ID, short description,
3321# long comments/notes, and comma/space-separated IP list
3322# Returns a result code and message
3323sub updateLoc {
3324 my $self = shift;
3325 my $dbh = $self->{dbh};
3326 my $loc = shift;
3327 my $grp = shift;
3328 my $shdesc = shift;
3329 my $comments = shift;
3330 my $iplist = shift;
3331
3332 $shdesc = '' if !$shdesc;
3333 $comments = '' if !$comments;
3334 $iplist = '' if !$iplist;
3335
3336 # Allow transactions, and raise an exception on errors so we can catch it later.
3337 # Use local to make sure these get "reset" properly on exiting this block
3338 local $dbh->{AutoCommit} = 0;
3339 local $dbh->{RaiseError} = 1;
3340
3341 my $oldloc = $self->getLoc($loc);
3342 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3343
3344 eval {
3345 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3346 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3347 $self->_log(entry => $okmsg);
3348 $dbh->commit;
3349 };
3350 if ($@) {
3351 my $msg = $@;
3352 eval { $dbh->rollback; };
3353 if ($self->{log_failures}) {
3354 $shdesc = $loc if !$shdesc;
3355 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3356 $dbh->commit;
3357 }
3358 return ('FAIL',$msg);
3359 }
3360
3361 return ('OK',$okmsg);
3362} # end updateLoc()
3363
3364
3365## DNSDB::delLoc()
3366sub delLoc {
3367 my $self = shift;
3368 my $dbh = $self->{dbh};
3369 my $loc = shift;
3370
3371 # Allow transactions, and raise an exception on errors so we can catch it later.
3372 # Use local to make sure these get "reset" properly on exiting this block
3373 local $dbh->{AutoCommit} = 0;
3374 local $dbh->{RaiseError} = 1;
3375
3376 my $oldloc = $self->getLoc($loc);
3377 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3378 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3379
3380 eval {
3381 # Check for records with this location first. Deleting a location without deleting records
3382 # tagged for that location will render them unpublished without other warning.
3383 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3384 die "Records still exist in location $olddesc\n" if $r;
3385 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3386 $self->_log(entry => $okmsg);
3387 $dbh->commit;
3388 };
3389 if ($@) {
3390 my $msg = $@;
3391 eval { $dbh->rollback; };
3392 if ($self->{log_failures}) {
3393 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3394 $dbh->commit;
3395 }
3396 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3397 }
3398
3399 return ('OK',$okmsg);
3400} # end delLoc()
3401
3402
3403## DNSDB::getLoc()
3404# Get details about a location/view
3405# Takes a database handle and location ID.
3406# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3407sub getLoc {
3408 my $self = shift;
3409 my $dbh = $self->{dbh};
3410 my $loc = shift;
3411
3412 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3413 $sth->execute($loc);
3414 return $sth->fetchrow_hashref();
3415} # end getLoc()
3416
3417
3418## DNSDB::getLocCount()
3419# Get count of locations/views
3420# Takes a database handle and hash containing at least the current group, and optionally:
3421# - a reference list of secondary groups
3422# - a filter string
3423# - a "Starts with" string
3424sub getLocCount {
3425 my $self = shift;
3426 my $dbh = $self->{dbh};
3427
3428 my %args = @_;
3429
3430 # Fail on bad curgroup argument. There's no sane fallback on this one.
3431 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3432 $errstr = "Bad or missing curgroup argument";
3433 return;
3434 }
3435 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3436 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3437 $errstr = "Bad childlist argument";
3438 return;
3439 }
3440
3441 my @filterargs;
3442 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3443 push @filterargs, "^$args{startwith}" if $args{startwith};
3444 push @filterargs, $args{filter} if $args{filter};
3445
3446 my $sql = "SELECT count(*) FROM locations ".
3447 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3448 ($args{startwith} ? " AND description ~* ?" : '').
3449 ($args{filter} ? " AND description ~* ?" : '');
3450 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3451 $errstr = $dbh->errstr if !$count;
3452 return $count;
3453} # end getLocCount()
3454
3455
3456## DNSDB::getLocList()
3457sub getLocList {
3458 my $self = shift;
3459 my $dbh = $self->{dbh};
3460
3461 my %args = @_;
3462
3463 # Fail on bad curgroup argument. There's no sane fallback on this one.
3464 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3465 $errstr = "Bad or missing curgroup argument";
3466 return;
3467 }
3468 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3469 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3470 $errstr = "Bad childlist argument";
3471 return;
3472 }
3473
3474 my @filterargs;
3475 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3476 push @filterargs, "^$args{startwith}" if $args{startwith};
3477 push @filterargs, $args{filter} if $args{filter};
3478
3479 # better to request sorts on "simple" names, but it means we need to map it to real columns
3480# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3481# fname => 'fname');
3482# $args{sortby} = $sortmap{$args{sortby}};
3483
3484 # protection against bad or missing arguments
3485 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3486 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3487 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3488
3489 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3490 "FROM locations l ".
3491 "INNER JOIN groups g ON l.group_id=g.group_id ".
3492 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3493 ($args{startwith} ? " AND l.description ~* ?" : '').
3494 ($args{filter} ? " AND l.description ~* ?" : '').
3495 " ORDER BY $args{sortby} $args{sortorder} ".
3496 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3497 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3498 $errstr = $dbh->errstr if !$ulist;
3499 return $ulist;
3500} # end getLocList()
3501
3502
3503## DNSDB::getLocDropdown()
3504# Get a list of location names for use in a dropdown menu.
3505# Takes a database handle, current group, and optional "tag this as selected" flag.
3506# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3507sub getLocDropdown {
3508 my $self = shift;
3509 my $dbh = $self->{dbh};
3510 my $grp = shift;
3511 my $sel = shift || '';
3512
3513 my $sth = $dbh->prepare(qq(
3514 SELECT description,location FROM locations
3515 WHERE group_id=?
3516 ORDER BY description
3517 ) );
3518 $sth->execute($grp);
3519
3520 my @loclist;
3521 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3522 while (my ($locname, $loc) = $sth->fetchrow_array) {
3523 my %row = (
3524 locname => $locname,
3525 loc => $loc,
3526 selected => ($sel eq $loc ? 1 : 0)
3527 );
3528 push @loclist, \%row;
3529 }
3530 return \@loclist;
3531} # end getLocDropdown()
3532
3533
3534## DNSDB::getSOA()
3535# Return all suitable fields from an SOA record in separate elements of a hash
3536# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3537sub getSOA {
3538 $errstr = '';
3539 my $self = shift;
3540 my $dbh = $self->{dbh};
3541 my $def = shift;
3542 my $rev = shift;
3543 my $id = shift;
3544
3545 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3546 # - should really attach serial to the zone parent somewhere
3547
3548 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3549 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3550 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3551 return if !$ret;
3552##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3553
3554 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3555 delete $ret->{host};
3556 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3557 delete $ret->{val};
3558
3559 return $ret;
3560} # end getSOA()
3561
3562
3563## DNSDB::updateSOA()
3564# Update the specified SOA record
3565# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3566# Returns a two-element list with a result code and message
3567sub updateSOA {
3568 my $self = shift;
3569 my $dbh = $self->{dbh};
3570 my $defrec = shift;
3571 my $revrec = shift;
3572
3573 my %soa = @_;
3574
3575 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
3576
3577 my $msg;
3578 my %logdata;
3579 if ($defrec eq 'n') {
3580 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3581 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3582 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
3583 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
3584 } else {
3585 $logdata{group_id} = $soa{id};
3586 }
3587 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
3588 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
3589
3590 # Allow transactions, and raise an exception on errors so we can catch it later.
3591 # Use local to make sure these get "reset" properly on exiting this block
3592 local $dbh->{AutoCommit} = 0;
3593 local $dbh->{RaiseError} = 1;
3594
3595 eval {
3596 if (!$oldsoa) {
3597 # old SOA record is missing for some reason. create a new one.
3598 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
3599 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
3600 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
3601 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
3602 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
3603 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3604 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3605 } else {
3606 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3607 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3608 $soa{ttl}, $oldsoa->{record_id}) );
3609 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3610 "SOA for $parname: ".
3611 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3612 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3613 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3614 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3615 }
3616 $logdata{entry} = $msg;
3617 $self->_log(%logdata);
3618
3619 $dbh->commit;
3620 };
3621 if ($@) {
3622 $msg = $@;
3623 eval { $dbh->rollback; };
3624 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3625 "SOA record for $parname: $msg";
3626 if ($self->{log_failures}) {
3627 $self->_log(%logdata);
3628 $dbh->commit;
3629 }
3630 return ('FAIL', $logdata{entry});
3631 } else {
3632 return ('OK', $msg);
3633 }
3634} # end updateSOA()
3635
3636
3637## DNSDB::getRecLine()
3638# Return all data fields for a zone record in separate elements of a hash
3639# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3640sub getRecLine {
3641 $errstr = '';
3642 my $self = shift;
3643 my $dbh = $self->{dbh};
3644 my $defrec = shift;
3645 my $revrec = shift;
3646 my $id = shift;
3647
3648##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
3649 my $sql = "SELECT record_id,host,type,val,ttl".
3650 ($defrec eq 'n' ? ',location' : '').
3651 ($revrec eq 'n' ? ',distance,weight,port' : '').
3652 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
3653 _rectable($defrec,$revrec)." WHERE record_id=?";
3654 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3655
3656 if ($dbh->err) {
3657 $errstr = $DBI::errstr;
3658 return undef;
3659 }
3660
3661 if (!$ret) {
3662 $errstr = "No such record";
3663 return undef;
3664 }
3665
3666 # explicitly set a parent id
3667 if ($defrec eq 'y') {
3668 $ret->{parid} = $ret->{group_id};
3669 } else {
3670 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3671 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3672 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3673 }
3674 $ret->{address} = $ret->{val}; # because.
3675
3676 return $ret;
3677}
3678
3679
3680##fixme: should use above (getRecLine()) to get lines for below?
3681## DNSDB::getRecList()
3682# Return records for a group or zone
3683# Takes a default/live flag, group or zone ID, start,
3684# number of records, sort field, and sort order
3685# Returns a reference to an array of hashes
3686sub getRecList {
3687 $errstr = '';
3688 my $self = shift;
3689 my $dbh = $self->{dbh};
3690
3691 my %args = @_;
3692
3693 # protection against bad or missing arguments
3694 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3695 my $defsort;
3696 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
3697 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
3698 $args{sortby} = '' if !$args{sortby};
3699 $args{sortby} = $defsort if !$args{revrec};
3700 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
3701 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3702 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
3703
3704 # sort reverse zones on IP, correctly
3705 # do other fiddling with $args{sortby} while we're at it.
3706 # whee! multisort means just passing comma-separated fields in sortby!
3707 my $newsort = '';
3708 foreach my $sf (split /,/, $args{sortby}) {
3709 $sf = "r.$sf";
3710 $sf =~ s/r\.val/inetlazy(r.val)/
3711 if $args{revrec} eq 'y' && $args{defrec} eq 'n';
3712 $sf =~ s/r\.type/t.alphaorder/;
3713 $newsort .= ",$sf";
3714 }
3715 $newsort =~ s/^,//;
3716
3717 my @bindvars = ($args{id});
3718 push @bindvars, ($args{filter},$args{filter}) if $args{filter};
3719
3720##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
3721 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3722 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
3723 if $args{defrec} eq 'n';
3724 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
3725 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
3726 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3727 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
3728 $sql .= "WHERE "._recparent($args{defrec},$args{revrec})." = ?";
3729 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3730# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
3731 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
3732 # we want to match both the formal and natural zone name
3733 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)" if $args{filter};
3734 my $tmp = join('.',reverse(split(/\./,$args{filter})));
3735 push @bindvars, ($tmp, $tmp) if $args{filter};
3736# } else {
3737# $sql .= " AND (r.host ~* ? OR r.val ~* ?)" if $args{filter};
3738# }
3739 $sql .= " ORDER BY $newsort $args{sortorder}";
3740 # ensure consistent ordering by sorting on record_id too
3741 $sql .= ", record_id $args{sortorder}";
3742 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
3743
3744 my @working;
3745 my $recsth = $dbh->prepare($sql);
3746 $recsth->execute(@bindvars);
3747 while (my $rec = $recsth->fetchrow_hashref) {
3748 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
3749 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
3750 $rec->{val} !~ /\.arpa$/ ) {
3751 # note we're sneakily skipping all reverse zone .arpa "hostnames" on the excuse
3752 # that this fragment won't do anything anyway. however:
3753 # knurd.5.0.0.0.b.0.0.b.5.b.0.b.f.e.e.b.d.a.e.d.ip6.arpa -> 192.168.7.6/32
3754 # when fed to NetAddr::IP. O_o (At least 4.058, .062, and .071, on CentOS 5 and Debian wheezy and sid)
3755##enhance: extend {showrev_arpa} eq 'record' to specify record types
3756 my $tmpip = new NetAddr::IP $rec->{val};
3757 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
3758 }
3759 push @working, $rec;
3760 }
3761 return \@working;
3762} # end getRecList()
3763
3764
3765## DNSDB::getRecCount()
3766# Return count of non-SOA records in zone (or default records in a group)
3767# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3768# and optional filtering modifier
3769# Returns the count
3770sub getRecCount {
3771 my $self = shift;
3772 my $dbh = $self->{dbh};
3773 my $defrec = shift;
3774 my $revrec = shift;
3775 my $id = shift;
3776 my $filter = shift || '';
3777
3778 # keep the nasties down, since we can't ?-sub this bit. :/
3779 # note this is chars allowed in DNS hostnames
3780 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3781
3782 my @bindvars = ($id);
3783 push @bindvars, ($filter,$filter) if $filter;
3784 my $sql = "SELECT count(*) FROM ".
3785 _rectable($defrec,$revrec).
3786 " WHERE "._recparent($defrec,$revrec)."=? ".
3787 "AND NOT type=$reverse_typemap{SOA}";
3788# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
3789 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
3790 # we want to match both the formal and natural zone name
3791 $sql .= " AND (host ~* ? OR val ~* ? OR host ~* ? OR val ~* ?)" if $filter;
3792 my $tmp = join('.',reverse(split(/\./,$filter)));
3793 push @bindvars, ($tmp, $tmp) if $filter;
3794# } else {
3795# $sql .= " AND (host ~* ? OR val ~* ?)" if $filter;
3796# }
3797
3798 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3799
3800 return $count;
3801
3802} # end getRecCount()
3803
3804
3805## DNSDB::addRec()
3806# Add a new record to a domain or a group's default records
3807# Takes a database handle, default/live flag, group/domain ID,
3808# host, type, value, and TTL
3809# Some types require additional detail: "distance" for MX and SRV,
3810# and weight/port for SRV
3811# Returns a status code and detail message in case of error
3812##fixme: pass a hash with the record data, not a series of separate values
3813sub addRec {
3814 $errstr = '';
3815 my $self = shift;
3816 my $dbh = $self->{dbh};
3817 my $defrec = shift;
3818 my $revrec = shift;
3819 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3820 # domain_id for domain records)
3821
3822 my $host = shift;
3823 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3824 my $val = shift;
3825 my $ttl = shift;
3826 my $location = shift;
3827 $location = '' if !$location;
3828
3829 my $expires = shift;
3830 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
3831 $expires = 0 if $expires eq 'after';
3832 my $stamp = shift;
3833 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
3834
3835 # Spaces are evil.
3836 $$host =~ s/^\s+//;
3837 $$host =~ s/\s+$//;
3838 if ($typemap{$$rectype} ne 'TXT') {
3839 # Leading or trailng spaces could be legit in TXT records.
3840 $$val =~ s/^\s+//;
3841 $$val =~ s/\s+$//;
3842 }
3843
3844 if ($self->{lowercase}) {
3845 if ($typemap{$$rectype} ne 'TXT') {
3846 $$host = lc($$host);
3847 $$val = lc($$val);
3848 } else {
3849 # TXT records should preserve user entry in the string.
3850 if ($revrec eq 'n') {
3851 $$host = lc($$host);
3852 } else {
3853 $$val = lc($$val);
3854 }
3855 }
3856 }
3857
3858 # prep for validation
3859 # Autodetect formal .arpa names
3860 if ($$val =~ /\.arpa\.?$/) {
3861 my ($code,$tmpval) = _zone2cidr($$val);
3862 return ('FAIL', $tmpval) if $code eq 'FAIL';
3863 $$val = $tmpval;
3864 }
3865 my $addr = NetAddr::IP->new($$val);
3866 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3867
3868 my $domid = 0;
3869 my $revid = 0;
3870
3871 my $retcode = 'OK'; # assume everything will go OK
3872 my $retmsg = '';
3873
3874 # do simple validation first
3875 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
3876
3877 # Quick check on hostname parts. There are enough variations to justify a sub now.
3878 return ('FAIL', $errstr) if ! _check_hostname_form($$host, $$rectype, $defrec, $revrec);
3879
3880 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3881 my $dist = shift;
3882 my $weight = shift;
3883 my $port = shift;
3884
3885 my $fields;
3886 my @vallist;
3887
3888 # Call the validation sub for the type requested.
3889 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
3890 host => $host, rectype => $rectype, val => $val, addr => $addr,
3891 dist => \$dist, port => \$port, weight => \$weight,
3892 fields => \$fields, vallist => \@vallist);
3893
3894 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3895
3896 # Set up database fields and bind parameters
3897 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3898 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3899
3900 if ($defrec eq 'n') {
3901 # locations are not for default records, silly coder!
3902 $fields .= ",location";
3903 push @vallist, $location;
3904 # timestamps are rare.
3905 if ($stamp) {
3906 $fields .= ",stamp,expires,stampactive";
3907 push @vallist, $stamp, $expires, 'y';
3908 } else {
3909 $fields .= ",stampactive";
3910 push @vallist, 'n';
3911 }
3912 }
3913
3914 # a little magic to get the right number of ? placeholders based on how many values we're providing
3915 my $vallen = '?'.(',?'x$#vallist);
3916
3917 # Put together the success log entry. We have to use this horrible kludge
3918 # because domain_id and rdns_id may or may not be present, and if they are,
3919 # they're not at a guaranteed consistent index in the array. wheee!
3920 my %logdata;
3921 my @ftmp = split /,/, $fields;
3922 for (my $i=0; $i <= $#vallist; $i++) {
3923 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3924 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3925 }
3926 $logdata{group_id} = $id if $defrec eq 'y';
3927 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
3928 if $defrec eq 'n';
3929 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3930 # NS records for revzones get special treatment
3931 if ($revrec eq 'y' && $$rectype == 2) {
3932 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3933 } else {
3934 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3935 }
3936
3937 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3938 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3939 if $typemap{$$rectype} eq 'SRV';
3940 $logdata{entry} .= "', TTL $ttl";
3941 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
3942 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
3943
3944 # Allow transactions, and raise an exception on errors so we can catch it later.
3945 # Use local to make sure these get "reset" properly on exiting this block
3946 local $dbh->{AutoCommit} = 0;
3947 local $dbh->{RaiseError} = 1;
3948
3949 eval {
3950 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3951 undef, @vallist);
3952 $self->_log(%logdata);
3953 $dbh->commit;
3954 };
3955 if ($@) {
3956 my $msg = $@;
3957 eval { $dbh->rollback; };
3958 if ($self->{log_failures}) {
3959 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3960 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3961 $self->_log(%logdata);
3962 $dbh->commit;
3963 }
3964 return ('FAIL',$msg);
3965 }
3966
3967 $resultstr = $logdata{entry};
3968 return ($retcode, $retmsg);
3969
3970} # end addRec()
3971
3972
3973## DNSDB::updateRec()
3974# Update a record
3975# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3976# Returns a status code and message
3977sub updateRec {
3978 $errstr = '';
3979
3980 my $self = shift;
3981 my $dbh = $self->{dbh};
3982 my $defrec = shift;
3983 my $revrec = shift;
3984 my $id = shift;
3985 my $parid = shift; # immediate parent entity that we're descending from to update the record
3986
3987 # all records have these
3988 my $host = shift;
3989 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
3990 my $rectype = shift;
3991 my $val = shift;
3992 my $ttl = shift;
3993 my $location = shift; # may be empty/null/undef depending on caller
3994 $location = '' if !$location;
3995
3996 my $expires = shift;
3997 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
3998 $expires = 0 if $expires eq 'after';
3999 my $stamp = shift;
4000 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4001
4002 # just set it to an empty string; failures will be caught later.
4003 $$host = '' if !$$host;
4004
4005 # Spaces are evil.
4006 $$host =~ s/^\s+//;
4007 $$host =~ s/\s+$//;
4008 if ($typemap{$$rectype} ne 'TXT') {
4009 # Leading or trailng spaces could be legit in TXT records.
4010 $$val =~ s/^\s+//;
4011 $$val =~ s/\s+$//;
4012 }
4013
4014 if ($self->{lowercase}) {
4015 if ($typemap{$$rectype} ne 'TXT') {
4016 $$host = lc($$host);
4017 $$val = lc($$val);
4018 } else {
4019 # TXT records should preserve user entry in the string.
4020 if ($revrec eq 'n') {
4021 $$host = lc($$host);
4022 } else {
4023 $$val = lc($$val);
4024 }
4025 }
4026 }
4027
4028 # prep for validation
4029 # Autodetect formal .arpa names
4030 if ($$val =~ /\.arpa\.?$/) {
4031 my ($code,$tmpval) = _zone2cidr($$val);
4032 return ('FAIL', $tmpval) if $code eq 'FAIL';
4033 $$val = $tmpval;
4034 }
4035 my $addr = NetAddr::IP->new($$val);
4036 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4037
4038 my $domid = 0;
4039 my $revid = 0;
4040
4041 my $retcode = 'OK'; # assume everything will go OK
4042 my $retmsg = '';
4043
4044 # do simple validation first
4045 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4046
4047 # Quick check on hostname parts. There are enough variations to justify a sub now.
4048 return ('FAIL', $errstr) if ! _check_hostname_form($$host, $$rectype, $defrec, $revrec);
4049
4050 # only MX and SRV will use these
4051 my $dist = shift || 0;
4052 my $weight = shift || 0;
4053 my $port = shift || 0;
4054
4055 my $fields;
4056 my @vallist;
4057
4058 # get old record data so we have the right parent ID
4059 # and for logging (eventually)
4060 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4061
4062 # Call the validation sub for the type requested.
4063 # Note the ID to pass here is the *parent*, not the record
4064 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4065 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4066 host => $host, rectype => $rectype, val => $val, addr => $addr,
4067 dist => \$dist, port => \$port, weight => \$weight,
4068 fields => \$fields, vallist => \@vallist,
4069 update => $id);
4070
4071 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4072
4073 # Set up database fields and bind parameters. Note only the optional fields
4074 # (distance, weight, port, secondary parent ID) are added in the validation call above
4075 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4076 push @vallist, ($$host,$$rectype,$$val,$ttl,
4077 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4078
4079 if ($defrec eq 'n') {
4080 # locations are not for default records, silly coder!
4081 $fields .= ",location";
4082 push @vallist, $location;
4083 # timestamps are rare.
4084 if ($stamp) {
4085 $fields .= ",stamp,expires,stampactive";
4086 push @vallist, $stamp, $expires, 'y';
4087 } else {
4088 $fields .= ",stampactive";
4089 push @vallist, 'n';
4090 }
4091 }
4092
4093 # hack hack PTHUI
4094 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4095 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4096 # needed for crossover types that got coerced down to "standard" types due to data changes
4097 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4098 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4099 if ($$rectype == $reverse_typemap{PTR}) {
4100 $fields .= ",domain_id";
4101 push @vallist, 0;
4102 }
4103 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4104 $fields .= ",rdns_id";
4105 push @vallist, 0;
4106 }
4107 }
4108 # fix fat-finger-originated record type changes
4109 if ($$rectype == 65285) { # delegation
4110 $fields .= ",rdns_id" if $revrec eq 'n';
4111 $fields .= ",domain_id" if $revrec eq 'y';
4112 push @vallist, 0;
4113 }
4114 # ... and now make sure we *do* associate a record with the "calling" parent
4115 if ($defrec eq 'n') {
4116 $domid = $parid if $revrec eq 'n';
4117 $revid = $parid if $revrec eq 'y';
4118 }
4119
4120 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4121 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4122 # will be maintained (due to "not-in-zone" validation changes)
4123 my %logdata;
4124 $logdata{domain_id} = $domid;
4125 $logdata{rdns_id} = $revid;
4126 my @ftmp = split /,/, $fields;
4127 for (my $i=0; $i <= $#vallist; $i++) {
4128 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4129 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4130 }
4131 $logdata{group_id} = $parid if $defrec eq 'y';
4132 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4133 if $defrec eq 'n';
4134 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4135 # NS records for revzones get special treatment
4136 if ($revrec eq 'y' && $$rectype == 2) {
4137 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4138 } else {
4139 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4140 }
4141 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4142 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4143 if $typemap{$oldrec->{type}} eq 'SRV';
4144 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4145 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4146 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4147 if $oldrec->{stampactive};
4148 $logdata{entry} .= "\nto\n";
4149 # More NS special
4150 if ($revrec eq 'y' && $$rectype == 2) {
4151 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4152 } else {
4153 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4154 }
4155 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4156 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4157 $logdata{entry} .= "', TTL $ttl";
4158 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4159 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
4160
4161 local $dbh->{AutoCommit} = 0;
4162 local $dbh->{RaiseError} = 1;
4163
4164 # Fiddle the field list into something suitable for updates
4165 $fields =~ s/,/=?,/g;
4166 $fields .= "=?";
4167
4168 eval {
4169 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4170 $self->_log(%logdata);
4171 $dbh->commit;
4172 };
4173 if ($@) {
4174 my $msg = $@;
4175 eval { $dbh->rollback; };
4176 if ($self->{log_failures}) {
4177 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4178 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4179 $self->_log(%logdata);
4180 $dbh->commit;
4181 }
4182 return ('FAIL', $msg);
4183 }
4184
4185 $resultstr = $logdata{entry};
4186 return ($retcode, $retmsg);
4187} # end updateRec()
4188
4189
4190## DNSDB::downconvert()
4191# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4192# to a compatible component type. Only a handful of operations are valid, anything
4193# else is a null-op.
4194# Takes the record ID and the new type. Returns boolean.
4195sub downconvert {
4196 my $self = shift;
4197 my $dbh = $self->{dbh};
4198 my $recid = shift;
4199 my $newtype = shift;
4200
4201 # also, only work on live records; little to no value trying to do this on default records.
4202 my $rec = $self->getRecLine('n', 'y', $recid);
4203
4204 # hm?
4205 #return 1 if !$rec;
4206
4207 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4208 return 1 if $rec->{type} == 65282; # Nowhere to go
4209
4210 my $delpar;
4211 my @sqlargs;
4212 if ($rec->{type} == 65280) {
4213 return 1 if $newtype != 1 && $newtype != 12;
4214 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4215 push @sqlargs, 0, $newtype, $recid;
4216 } elsif ($rec->{type} == 65281) {
4217 return 1 if $newtype != 28 && $newtype != 12;
4218 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4219 push @sqlargs, 0, $newtype, $recid;
4220 } elsif ($rec->{type} == 65283) {
4221 return 1 if $newtype != 65282;
4222 $delpar = 'rdns_id';
4223 } elsif ($rec->{type} == 65284) {
4224 return 1 if $newtype != 65282;
4225 $delpar = 'rdns_id';
4226 } else {
4227 # Your llama is on fire.
4228 }
4229
4230 local $dbh->{AutoCommit} = 0;
4231 local $dbh->{RaiseError} = 1;
4232
4233 eval {
4234 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4235 $dbh->commit;
4236 };
4237 if ($@) {
4238 $errstr = $@;
4239 eval { $dbh->rollback; };
4240 return 0;
4241 }
4242 return 1;
4243} # end downconvert()
4244
4245
4246## DNSDB::delRec()
4247# Delete a record.
4248sub delRec {
4249 $errstr = '';
4250 my $self = shift;
4251 my $dbh = $self->{dbh};
4252 my $defrec = shift;
4253 my $revrec = shift;
4254 my $id = shift;
4255
4256 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4257
4258 # Allow transactions, and raise an exception on errors so we can catch it later.
4259 # Use local to make sure these get "reset" properly on exiting this block
4260 local $dbh->{AutoCommit} = 0;
4261 local $dbh->{RaiseError} = 1;
4262
4263 # Put together the log entry
4264 my %logdata;
4265 $logdata{domain_id} = $oldrec->{domain_id};
4266 $logdata{rdns_id} = $oldrec->{rdns_id};
4267 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4268 $logdata{group_id} = $self->parentID(id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'),
4269 revrec => $revrec)
4270 if $defrec eq 'n';
4271 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4272 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4273 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4274 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4275 if $typemap{$oldrec->{type}} eq 'SRV';
4276 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4277 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4278
4279 eval {
4280 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4281 $self->_log(%logdata);
4282 $dbh->commit;
4283 };
4284 if ($@) {
4285 my $msg = $@;
4286 eval { $dbh->rollback; };
4287 if ($self->{log_failures}) {
4288 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4289 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4290 $self->_log(%logdata);
4291 $dbh->commit;
4292 }
4293 return ('FAIL', $msg);
4294 }
4295
4296 return ('OK',$logdata{entry});
4297} # end delRec()
4298
4299
4300## DNSDB::getLogCount()
4301# Get a count of log entries
4302# Takes a database handle and a hash containing at least:
4303# - Entity ID and entity type as the primary log "slice"
4304sub getLogCount {
4305 my $self = shift;
4306 my $dbh = $self->{dbh};
4307
4308 my %args = @_;
4309
4310 my @filterargs;
4311##fixme: which fields do we want to filter on?
4312# push @filterargs,
4313
4314 $errstr = 'Missing primary parent ID and/or type';
4315 # fail early if we don't have a "prime" ID to look for log entries for
4316 return if !$args{id};
4317
4318 # or if the prime id type is missing or invalid
4319 return if !$args{logtype};
4320 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4321 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4322 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4323
4324 my $sql = "SELECT count(*) FROM log ".
4325 "WHERE $id_col{$args{logtype}}=?".
4326 ($args{filter} ? " AND entry ~* ?" : '');
4327 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4328 $errstr = $dbh->errstr if !$count;
4329 return $count;
4330} # end getLogCount()
4331
4332
4333## DNSDB::getLogEntries()
4334# Get a list of log entries
4335# Takes arguments as with getLogCount() above, plus optional:
4336# - sort field
4337# - sort order
4338# - offset for pagination
4339sub getLogEntries {
4340 my $self = shift;
4341 my $dbh = $self->{dbh};
4342
4343 my %args = @_;
4344
4345 my @filterargs;
4346
4347 # fail early if we don't have a "prime" ID to look for log entries for
4348 return if !$args{id};
4349
4350 # or if the prime id type is missing or invalid
4351 return if !$args{logtype};
4352 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4353 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4354 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4355
4356 # Sorting defaults
4357 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4358 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4359 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4360
4361 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4362 $args{sortby} = $sortmap{$args{sortby}};
4363
4364 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4365 "date_trunc('second',stamp) AS logtime ".
4366 "FROM log ".
4367 "WHERE $id_col{$args{logtype}}=?".
4368 ($args{filter} ? " AND entry ~* ?" : '').
4369 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4370 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4371 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4372 $errstr = $dbh->errstr if !$loglist;
4373 return $loglist;
4374} # end getLogEntries()
4375
4376
4377## IPDB::getRevPattern()
4378# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4379sub getRevPattern {
4380 my $self = shift;
4381 my $dbh = $self->{dbh};
4382 my $cidr = shift;
4383 my $group = shift || 1; # just in case
4384
4385 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4386 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ? AND group_id = ?",
4387 undef, ($cidr, $group) );
4388
4389##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4390 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4391 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) >>= ? ".
4392 "ORDER BY inetlazy(val) DESC LIMIT 1", undef, ($revid, $cidr) );
4393 return $revpatt;
4394} # end getRevPattern()
4395
4396
4397## DNSDB::getTypelist()
4398# Get a list of record types for various UI dropdowns
4399# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4400# Returns an arrayref to list of hashrefs perfect for HTML::Template
4401sub getTypelist {
4402 my $self = shift;
4403 my $dbh = $self->{dbh};
4404 my $recgroup = shift;
4405 my $type = shift || $reverse_typemap{A};
4406
4407 # also accepting $webvar{revrec}!
4408 $recgroup = 'f' if $recgroup eq 'n';
4409 $recgroup = 'r' if $recgroup eq 'y';
4410
4411 my $sql = "SELECT val,name FROM rectypes WHERE ";
4412 if ($recgroup eq 'r') {
4413 # reverse zone types
4414 $sql .= "stdflag=2 OR stdflag=3";
4415 } elsif ($recgroup eq 'l') {
4416 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4417 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4418 } else {
4419 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4420 $sql .= "stdflag=1 OR stdflag=2";
4421 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4422 }
4423 $sql .= " ORDER BY listorder";
4424
4425 my $sth = $dbh->prepare($sql);
4426 $sth->execute;
4427 my @typelist;
4428 # track whether the passed type is in the list at all. allows you to edit a record
4429 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4430 # without changing its type (accidentally or otherwise)
4431 my $selflag = 0;
4432 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4433 my %row = ( recval => $rval, recname => $rname );
4434 if ($rval == $type) {
4435 $row{tselect} = 1;
4436 $selflag = 1;
4437 }
4438 push @typelist, \%row;
4439 }
4440
4441 # add the passed type if it wasn't in the list
4442 if (!$selflag) {
4443 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4444 push @typelist, \%row;
4445 }
4446
4447 # Add SOA on lookups since it's not listed in other dropdowns.
4448 if ($recgroup eq 'l') {
4449 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4450 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4451 push @typelist, \%row;
4452 }
4453
4454 return \@typelist;
4455} # end getTypelist()
4456
4457
4458## DNSDB::parentID()
4459# Get ID of entity that is nearest parent to requested id
4460# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4461# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4462# Returns the ID or undef on failure
4463sub parentID {
4464 my $self = shift;
4465 my $dbh = $self->{dbh};
4466
4467 my %args = @_;
4468
4469 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
4470 $args{partype} = 'group' if !$args{partype};
4471 $args{partype} = 'domain' if $args{partype} eq 'revzone';
4472
4473 # clean up defrec and revrec. default to live record, forward zone
4474 $args{defrec} = 'n' if !$args{defrec};
4475 $args{revrec} = 'n' if !$args{revrec};
4476
4477 if ($par_type{$args{partype}} eq 'domain') {
4478 # only live records can have a domain/zone parent
4479 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4480 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4481 " FROM records WHERE record_id = ?",
4482 undef, ($args{id}) ) or return;
4483 return $result;
4484 } else {
4485 # snag some arguments that will either fall through or be overwritten to save some code duplication
4486 my $tmpid = $args{id};
4487 my $type = $args{type};
4488 if ($type eq 'record' && $args{defrec} eq 'n') {
4489 # Live records go through the records table first.
4490 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4491 " FROM records WHERE record_id = ?",
4492 undef, ($args{id}) ) or return;
4493 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4494 }
4495 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4496 undef, ($tmpid) );
4497 return $result;
4498 }
4499# should be impossible to get here with even remotely sane arguments
4500 return;
4501} # end parentID()
4502
4503
4504## DNSDB::isParent()
4505# Returns true if $id1 is a parent of $id2, false otherwise
4506sub isParent {
4507 my $self = shift;
4508 my $dbh = $self->{dbh};
4509 my $id1 = shift;
4510 my $type1 = shift;
4511 my $id2 = shift;
4512 my $type2 = shift;
4513##todo: immediate, secondary, full (default)
4514
4515 # Return false on invalid types
4516 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4517 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4518
4519 # Return false on impossible relations
4520 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4521 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4522 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4523 return 0 if $type1 eq 'user'; # nothing may be child of a user
4524 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4525 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4526
4527 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4528 # case would be the UI creating a new <thing>, and so we don't have an ID for
4529 # <thing> to look up yet. in that case the UI should check the parent as well.
4530 return 0 if $id1 == 0; # nothing can have a parent id of 0
4531 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4532
4533 # group 1 is the ultimate root parent
4534 return 1 if $type1 eq 'group' && $id1 == 1;
4535
4536 # groups are always (a) parent of themselves
4537 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4538
4539 my $id = $id2;
4540 my $type = $type2;
4541 my $foundparent = 0;
4542
4543 # Records are the only entity with two possible parents. We need to split the parent checks on
4544 # domain/rdns.
4545 if ($type eq 'record') {
4546 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4547 undef, ($id));
4548 # check immediate parent against request
4549 return 1 if $type1 eq 'domain' && $id1 == $dom;
4550 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4551 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4552 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
4553 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
4554 # exit here since we've executed the loop below by proxy in the above recursive calls.
4555 return 0;
4556 }
4557
4558# almost the same loop as getParents() above
4559 my $limiter = 0;
4560 while (1) {
4561 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4562 my $result = $dbh->selectrow_hashref($sql,
4563 undef, ($id) );
4564 if (!$result) {
4565 $limiter++;
4566##fixme: how often will this happen on a live site? fail at max limiter <n>?
4567# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
4568 warn "no results looking for $sql with id $id (depth $limiter)\n";
4569 last;
4570 }
4571 if ($result && $result->{$par_col{$type}} == $id1) {
4572 $foundparent = 1;
4573 last;
4574 } else {
4575##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4576# should be impossible to create an inconsistent DB just with API calls.
4577 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4578 }
4579 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4580 last if $result->{$par_col{$type}} == 1;
4581 $id = $result->{$par_col{$type}};
4582 $type = $par_type{$type};
4583 }
4584
4585 return $foundparent;
4586} # end isParent()
4587
4588
4589## DNSDB::zoneStatus()
4590# Returns and optionally sets a zone's status
4591# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4592# Returns status, or undef on errors.
4593sub zoneStatus {
4594 my $self = shift;
4595 my $dbh = $self->{dbh};
4596 my $id = shift;
4597 my $revrec = shift;
4598 my $newstatus = shift || 'mu';
4599
4600 return undef if $id !~ /^\d+$/;
4601
4602 # Allow transactions, and raise an exception on errors so we can catch it later.
4603 # Use local to make sure these get "reset" properly on exiting this block
4604 local $dbh->{AutoCommit} = 0;
4605 local $dbh->{RaiseError} = 1;
4606
4607 if ($newstatus ne 'mu') {
4608 # ooo, fun! let's see what we were passed for status
4609 eval {
4610 $newstatus = 0 if $newstatus eq 'domoff';
4611 $newstatus = 1 if $newstatus eq 'domon';
4612 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4613 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4614
4615##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4616 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
4617 " state to ".($newstatus ? 'active' : 'inactive');
4618
4619 my %loghash;
4620 $loghash{domain_id} = $id if $revrec eq 'n';
4621 $loghash{rdns_id} = $id if $revrec eq 'y';
4622 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
4623 $loghash{entry} = $resultstr;
4624 $self->_log(%loghash);
4625
4626 $dbh->commit;
4627 };
4628 if ($@) {
4629 my $msg = $@;
4630 eval { $dbh->rollback; };
4631 $resultstr = '';
4632 $errstr = $msg;
4633 return;
4634 }
4635 }
4636
4637 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4638 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4639 undef, ($id) );
4640 return $status;
4641} # end zoneStatus()
4642
4643
4644## DNSDB::getZonesByCIDR()
4645# Get a list of zone names and IDs that records for a passed CIDR block are within.
4646sub getZonesByCIDR {
4647 my $self = shift;
4648 my $dbh = $self->{dbh};
4649 my %args = @_;
4650
4651 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
4652 { Slice => {} }, ($args{cidr}, $args{cidr}) );
4653 return $result;
4654} # end getZonesByCIDR()
4655
4656
4657## DNSDB::importAXFR
4658# Import a domain via AXFR
4659# Takes AXFR host, domain to transfer, group to put the domain in,
4660# and an optional hash containing:
4661# status - active/inactive state flag (defaults to active)
4662# rwsoa - overwrite-SOA flag (defaults to off)
4663# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4664# merge - flag to automerge A or AAAA records with matching PTR records
4665# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4666# if status is OK, but WARN includes conditions that are not fatal but should
4667# really be reported.
4668sub importAXFR {
4669 my $self = shift;
4670 my $dbh = $self->{dbh};
4671 my $ifrom_in = shift;
4672 my $zone = shift;
4673 my $group = shift;
4674
4675 my %args = @_;
4676
4677##fixme: add mode to delete&replace, merge+overwrite, merge new?
4678
4679 $args{status} = (defined($args{status}) ? $args{status} : 0);
4680 $args{status} = 1 if $args{status} eq 'on';
4681
4682 my $nrecs = 0;
4683 my $soaflag = 0;
4684 my $nsflag = 0;
4685 my $warnmsg = '';
4686 my $ifrom;
4687
4688 my $rev = 'n';
4689 my $code = 'OK';
4690 my $msg = 'foobar?';
4691
4692 # choke on possible bad setting in ifrom
4693 # IPv4 and v6, and valid hostnames!
4694 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4695 return ('FAIL', "Bad AXFR source host $ifrom")
4696 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4697
4698 my $errmsg;
4699
4700 my $zone_id;
4701 my $domain_id = 0;
4702 my $rdns_id = 0;
4703 my $cidr;
4704
4705# magic happens! detect if we're importing a domain or a reverse zone
4706# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
4707# or what the formal .arpa zone is (if we got a CIDR netblock)
4708# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
4709
4710 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
4711 # we seem to have a reverse zone
4712 $rev = 'y';
4713
4714 if ($zone =~ /\.arpa\.?$/) {
4715 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
4716 ($code,$msg) = _zone2cidr($zone);
4717 return ($code, $msg) if $code eq 'FAIL';
4718 $cidr = $msg;
4719 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
4720 # v4 revzone, CIDR netblock
4721 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4722 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4723 } elsif ($zone =~ /^[\d.]+$/) {
4724 # v4 revzone, leading-octet format
4725 my $mask = 32;
4726 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
4727 $zone .= '.0';
4728 $mask -= 8;
4729 }
4730 $zone .= "/$mask";
4731 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4732 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4733 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
4734 # v6 revzone, CIDR netblock
4735 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4736 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
4737 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4738 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
4739 # v6 revzone, leading-group format
4740 $zone =~ s/::$//;
4741 my $mask = 128;
4742 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
4743 $zone .= ":0";
4744 $mask -= 16;
4745 }
4746 $zone .= "/$mask";
4747 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4748 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4749 } else {
4750 # there is. no. else!
4751 return ('FAIL', "Unknown zone name format '$zone'");
4752 }
4753
4754 # several places this can be triggered from; better to do it once.
4755 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
4756
4757 # quick check to start to see if we've already got one
4758
4759 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
4760 undef, ("$cidr"));
4761 $rdns_id = $zone_id;
4762 } else {
4763 # default to domain
4764 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
4765 undef, ($zone));
4766 $domain_id = $zone_id;
4767 }
4768
4769 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
4770
4771 # little local utility sub to swap $val and $host for revzone records.
4772 sub _revswap {
4773 my $rechost = shift;
4774 my $recdata = shift;
4775
4776 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
4777 $rechost =~ s/\.in-addr\.arpa\.?$//;
4778 $rechost = join '.', reverse split /\./, $rechost;
4779 } else {
4780 $rechost =~ s/\.ip6\.arpa\.?$//;
4781 my @nibs = reverse split /\./, $rechost;
4782 $rechost = '';
4783 my $nc;
4784 foreach (@nibs) {
4785 $rechost.= $_;
4786 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
4787 }
4788 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
4789##fixme: there's a case that ends up with a partial entry here:
4790# ip:add:re:ss::
4791# can't reproduce after letting it sit overnight after discovery. :(
4792#print "$rechost\n";
4793 # canonicalize with NetAddr::IP
4794 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
4795 }
4796 return ($recdata,$rechost)
4797 }
4798
4799
4800 # Allow transactions, and raise an exception on errors so we can catch it later.
4801 # Use local to make sure these get "reset" properly on exiting this block
4802 local $dbh->{AutoCommit} = 0;
4803 local $dbh->{RaiseError} = 1;
4804
4805 my $sth;
4806 eval {
4807
4808 if ($rev eq 'n') {
4809##fixme: serial
4810 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
4811 ($zone, $group, $args{status}) );
4812 # get domain id so we can do the records
4813 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
4814 $domain_id = $zone_id;
4815 $self->_log(group_id => $group, domain_id => $domain_id,
4816 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
4817 } else {
4818##fixme: serial
4819 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
4820 ($cidr,$group,$args{status}) );
4821 # get revzone id so we can do the records
4822 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
4823 $rdns_id = $zone_id;
4824 $self->_log(group_id => $group, rdns_id => $rdns_id,
4825 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
4826 }
4827
4828## bizarre DBI<->Net::DNS interaction bug:
4829## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
4830## fixed, apparently I was doing *something* odd, but not certain what it was that
4831## caused a commit instead of barfing
4832
4833 my $res = Net::DNS::Resolver->new;
4834 $res->nameservers($ifrom);
4835 $res->axfr_start($zone)
4836 or die "Couldn't begin AXFR\n";
4837
4838 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
4839 " VALUES (?,?,?,?,?,?,?,?,?)");
4840
4841 # Stash info about sub-octet v4 revzones here so we don't have
4842 # to store the CNAMEs used to delegate a suboctet zone
4843 # $suboct{zone}{ns}[] -> array of nameservers
4844 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
4845## commented pending actual use of this data. for now, we'll just
4846## auto-(re)create the CNAMEs in revzones on export
4847# my %suboct;
4848
4849 while (my $rr = $res->axfr_next()) {
4850
4851 # Discard out-of-zone records. After trying for a while to replicate this with
4852 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
4853 # in the AXFR data in the first place, and possibly only older versions at that...
4854 # so it can't be reasonably tested. Yay Microsoft.
4855 if ($rr->name !~ /$zone$/i) {
4856 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
4857 }
4858
4859 my $val;
4860 my $distance = 0;
4861 my $weight = 0;
4862 my $port = 0;
4863 my $logfrag = '';
4864
4865 # Collect some record parts
4866 my $type = $rr->type;
4867 my $host = $rr->name;
4868 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
4869
4870 # Info flags for SOA and NS records
4871 $soaflag = 1 if $type eq 'SOA';
4872 $nsflag = 1 if $type eq 'NS';
4873
4874# "Primary" types:
4875# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
4876# maybe KEY
4877
4878# BIND supports:
4879# [standard]
4880# A AAAA CNAME MX NS PTR SOA TXT
4881# [variously experimental, obsolete, or obscure]
4882# 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
4883# ... if one can ever find the right magic to format them correctly
4884
4885# Net::DNS supports:
4886# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
4887# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
4888# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
4889
4890# nasty big ugly case-like thing here, since we have to do *some* different
4891# processing depending on the record. le sigh.
4892
4893# do the initial processing as if the record was in a forward zone. If we're
4894# doing a revzone, we can flip $host and $val as needed, once, after this
4895# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
4896
4897##fixme: what record types other than TXT can/will have >255-byte payloads?
4898
4899 if ($type eq 'A') {
4900 $val = $rr->address;
4901 } elsif ($type eq 'NS') {
4902# hmm. should we warn here if subdomain NS'es are left alone?
4903 next if ($args{rwns} && ($host eq $zone));
4904 $val = $rr->nsdname;
4905 $nsflag = 1;
4906 } elsif ($type eq 'CNAME') {
4907 $val = $rr->cname;
4908 } elsif ($type eq 'SOA') {
4909 next if $args{rwsoa};
4910 $host = $rr->rname.":".$rr->mname;
4911 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
4912 $soaflag = 1;
4913 } elsif ($type eq 'PTR') {
4914 $val = $rr->ptrdname;
4915 } elsif ($type eq 'MX') {
4916 $val = $rr->exchange;
4917 $distance = $rr->preference;
4918 } elsif ($type eq 'TXT') {
4919##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
4920## but don't really seem enthusiastic about it.
4921#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
4922# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
4923# char_str_list returns a list of the individual string fragments in the record
4924# txtdata returns the more useful all-in-one form (since we want to push such protocol
4925# details as far down the stack as we can)
4926# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
4927 $val = $rr->txtdata;
4928 } elsif ($type eq 'SPF') {
4929##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4930 $val = $rr->txtdata;
4931 } elsif ($type eq 'AAAA') {
4932 $val = $rr->address;
4933 } elsif ($type eq 'SRV') {
4934 $val = $rr->target;
4935 $distance = $rr->priority;
4936 $weight = $rr->weight;
4937 $port = $rr->port;
4938 } elsif ($type eq 'KEY') {
4939 # we don't actually know what to do with these...
4940 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4941 } else {
4942 $val = $rr->rdatastr;
4943 # Finding a different record type is not fatal.... just problematic.
4944 # We may not be able to export it correctly.
4945 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4946 }
4947
4948 if ($rev eq 'y' && $type ne 'SOA') {
4949 # up to this point we haven't meddled with the record's hostname part or rdata part.
4950 # for reverse records, (except SOA) we must swap the two.
4951 $host = $val;
4952 $val = $rr->name;
4953 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
4954 if ($tmpcode eq 'FAIL') {
4955 # $val did not have a valid IP value. It's syntactically valid but WTF?
4956 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
4957 } else {
4958 # $val has a valid IP value. See if we can store it as that IP value.
4959 # Note we're enumerating do-nothing cases for clarity.
4960##enhance: this is where we will implement the more subtle variations on #53
4961 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
4962 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
4963 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4964 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
4965 # case: PTR with netblock value, not IP value
4966 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
4967 # stored/displayed as dead:beef::/32 PTR foo
4968
4969## hrm. WTF is this case for, anyway? Needs testing to check the logic.
4970# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
4971# ($tmpmsg->masklen != $cidr->masklen)
4972# ) {
4973# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
4974# # and the mask does not match the zone
4975#$warnmsg .= "WTF case: $host $type $val\n";
4976# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4977
4978 } else {
4979 $val = $tmpmsg;
4980 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
4981 #$val =~ s/:0$//g;
4982 }
4983 }
4984 # magic? convert * records to PTR template (not sure this actually makes sense)
4985 #if ($val =~ /^\*/) {
4986 # $val =~ s/\*\.//;
4987 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
4988 # if ($tmpcode eq 'FAIL') {
4989 # $val = "*.$val";
4990 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
4991 # } else {
4992 # $type = 'PTR template';
4993 # $val = $tmpmsg; if $tmp
4994 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
4995 # }
4996 #}
4997 } # non-SOA revrec $host/$val inversion and munging
4998
4999 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5000
5001 if ($args{merge}) {
5002 if ($rev eq 'n') {
5003 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5004 my $etype;
5005 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5006 "WHERE host=? AND val=? AND type=12",
5007 undef, ($host, $val) );
5008 if ($erid) {
5009 if ($type eq 'A') { # PTR -> A+PTR
5010 $etype = 65280;
5011 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5012 }
5013 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5014 $etype = 65281;
5015 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5016 }
5017 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5018 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5019 ($domain_id, $ettl, $etype, $erid));
5020 $nrecs++;
5021 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5022 next; # while axfr_next
5023 }
5024 } # $rev eq 'n'
5025 else {
5026 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5027 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5028 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5029 undef, ($host, $val) );
5030 if ($erid) {
5031 if ($etype == 1) { # A -> A+PTR
5032 $etype = 65280;
5033 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5034 }
5035 if ($etype == 28) { # AAAA -> AAAA+PTR
5036 $etype = 65281;
5037 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5038 }
5039 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5040 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5041 ($rdns_id, $ettl, $etype, $erid));
5042 $nrecs++;
5043 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5044 next; # while axfr_next
5045 }
5046 } # $rev eq 'y'
5047 } # if $args{merge}
5048
5049 # Insert the new record
5050 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5051 $distance, $weight, $port, $ttl);
5052
5053 $nrecs++;
5054
5055 if ($type eq 'SOA') {
5056 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5057 my @tmp1 = split /:/, $host;
5058 my @tmp2 = split /:/, $val;
5059 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5060 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5061 } elsif ($logfrag) {
5062 # special case for log entries we need to meddle with a little.
5063 $logentry .= $logfrag;
5064 } else {
5065 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5066 $logentry .= " [distance $distance]" if $type eq 'MX';
5067 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5068 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5069 }
5070 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5071
5072 } # while axfr_next
5073
5074# Detect and handle delegated subzones
5075# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5076#foreach (keys %suboct) {
5077# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5078# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5079#}
5080
5081 # Overwrite SOA record
5082 if ($args{rwsoa}) {
5083 $soaflag = 1;
5084 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5085 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5086 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5087 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5088 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5089 if ($rev eq 'n') {
5090 $host =~ s/DOMAIN/$zone/g;
5091 $val =~ s/DOMAIN/$zone/g; # arguably useless
5092 } else {
5093 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5094 }
5095 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5096 }
5097 }
5098
5099 # Add standard NS records. The old one(s) should have been skipped by this point.
5100 if ($args{rwns}) {
5101 $nsflag = 1;
5102 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5103 my $sthputns = $dbh->prepare("INSERT INTO records (".
5104 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5105 $sthgetns->execute($group,$reverse_typemap{NS});
5106 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5107 if ($rev eq 'n') {
5108 $host =~ s/DOMAIN/$zone/g;
5109 $val =~ s/DOMAIN/$zone/g; #hmm.
5110 } else {
5111 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5112 $val =~ s/ZONE/$cidr/g;
5113 }
5114 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5115 }
5116 }
5117
5118 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5119 die "Bad zone: No SOA record!\n" if !$soaflag;
5120 die "Bad zone: No NS records!\n" if !$nsflag;
5121
5122 $dbh->commit;
5123
5124 };
5125
5126 if ($@) {
5127 my $msg = $@;
5128 eval { $dbh->rollback; };
5129 return ('FAIL',$msg." $warnmsg");
5130 } else {
5131 return ('WARN', $warnmsg) if $warnmsg;
5132 return ('OK',"Imported OK");
5133 }
5134
5135 # it should be impossible to get here.
5136 return ('WARN',"OOOK!");
5137} # end importAXFR()
5138
5139
5140## DNSDB::importBIND()
5141sub importBIND {
5142} # end importBIND()
5143
5144
5145## DNSDB::import_tinydns()
5146sub import_tinydns {
5147} # end import_tinydns()
5148
5149
5150## DNSDB::export()
5151# Export the DNS database, or a part of it
5152# Takes a string indicating the export type, plus optional arguments depending on type
5153# Writes zone data to targets as appropriate for type
5154sub export {
5155 my $self = shift;
5156 my $target = shift;
5157
5158 if ($target eq 'tiny') {
5159 eval {
5160 $self->__export_tiny(@_);
5161 };
5162 if ($@) {
5163 $errstr = $@;
5164 return undef;
5165 }
5166 }
5167# elsif ($target eq 'foo') {
5168# __export_foo(@_);
5169#}
5170# etc
5171
5172 return 1;
5173} # end export()
5174
5175
5176## DNSDB::__export_tiny
5177# Internal sub to implement tinyDNS (compatible) export
5178# Takes filehandle to write export to, optional argument(s)
5179# to determine which data gets exported
5180sub __export_tiny {
5181 my $self = shift;
5182 my $dbh = $self->{dbh};
5183 my $datafile = shift;
5184 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5185
5186##fixme: slurp up further options to specify particular zone(s) to export
5187
5188##fixme: fail if $datafile isn't an open, writable file
5189
5190 # Error check - does the cache dir exist, if we're using one?
5191 if ($self->{usecache}) {
5192 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5193 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5194 die "$self->{exportcache} must be both readable and writable\n"
5195 if !-r $self->{exportcache} || !-w $self->{exportcache};
5196 }
5197
5198 # easy case - export all evarything
5199 # not-so-easy case - export item(s) specified
5200 # todo: figure out what kind of list we use to export items
5201
5202# raw packet in unknown format: first byte indicates length
5203# of remaining data, allows up to 255 raw bytes
5204
5205 # note: the only I/O failures we seem to be able to actually catch
5206 # here are "closed filehandle" errors. we're probably not writing
5207 # enough data at this point to properly trigger an "out of space"
5208 # error. :/
5209 eval {
5210 use warnings FATAL => ('io');
5211 # Locations/views - worth including in the caching setup?
5212 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5213 foreach my $location (keys %$lochash) {
5214 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5215 $ipprefix =~ s/\s+//g;
5216 $ipprefix = new NetAddr::IP $ipprefix;
5217##fixme: how to handle IPv6?
5218next if $ipprefix->{isv6};
5219 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5220 if ($ipprefix->masklen <= 8) {
5221 foreach ($ipprefix->split(8)) {
5222 my $tmp = $_->addr;
5223 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5224 print $datafile "%$location:$tmp\n";
5225 }
5226 } elsif ($ipprefix->masklen <= 16) {
5227 foreach ($ipprefix->split(16)) {
5228 my $tmp = $_->addr;
5229 $tmp =~ s/\.\d+\.\d+$//;
5230 print $datafile "%$location:$tmp\n";
5231 }
5232 } elsif ($ipprefix->masklen <= 24) {
5233 foreach ($ipprefix->split(24)) {
5234 my $tmp = $_->addr;
5235 $tmp =~ s/\.\d+$//;
5236 print $datafile "%$location:$tmp\n";
5237 }
5238 } else {
5239 foreach ($ipprefix->split(32)) {
5240 print $datafile "%$location:".$_->addr."\n";
5241 }
5242 }
5243 }
5244 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5245 }
5246 };
5247 if ($@) {
5248 die "Error writing locations to master file: $@, $!\n";
5249 }
5250
5251 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5252 my %recflags;
5253
5254# For reasons unknown, we can't sanely UNION these statements. Feh.
5255# Supposedly it should work though (note last 3 lines):
5256## PG manual
5257#UNION Clause
5258#
5259#The UNION clause has this general form:
5260#
5261# select_statement UNION [ ALL ] select_statement
5262#
5263#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5264#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5265#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5266 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5267 "FROM records WHERE rdns_id=? AND type=6");
5268 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5269 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5270 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5271 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5272 "ORDER BY masklen(revnet) DESC, rdns_id");
5273 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5274 $revsth->execute();
5275 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5276##fixme: need to find a way to block opening symlinked files without introducing a race.
5277# O_NOFOLLOW
5278# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5279# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5280# still be followed.
5281# but that doesn't help other platforms. :/
5282 my $tmpzone = NetAddr::IP->new($revzone);
5283##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5284## (eg /20 vs /24, starting on .0.0)
5285 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5286 my $cachefile = "$self->{exportcache}/$cz";
5287 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5288 eval {
5289
5290 # write fresh records if:
5291 # - we are not using the cache
5292 # - force_refresh is set
5293 # - the zone has changed
5294 # - the cache file does not exist
5295 # - the cache file is empty
5296 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5297 if ($self->{usecache}) {
5298 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5299 $zonefilehandle = *ZONECACHE;
5300 }
5301
5302 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5303 $soasth->execute($revid);
5304 my (@zsoa) = $soasth->fetchrow_array();
5305 _printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5306 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5307
5308 $recsth->execute($revid);
5309 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5310
5311 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5312 = $recsth->fetchrow_array) {
5313 next if $recflags{$recid};
5314
5315 # Check for out-of-zone data
5316 if ($val =~ /\.arpa$/) {
5317 # val is non-IP
5318 if ($val !~ /$fullzone$/) {
5319 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5320 next;
5321 }
5322 } else {
5323 my $ipval = new NetAddr::IP $val;
5324 if (!$tmpzone->contains($ipval)) {
5325 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5326 next;
5327 }
5328 } # is $val a raw .arpa name?
5329
5330 # Spaces are evil.
5331 $val =~ s/^\s+//;
5332 $val =~ s/\s+$//;
5333 if ($typemap{$type} ne 'TXT') {
5334 # Leading or trailng spaces could be legit in TXT records.
5335 $host =~ s/^\s+//;
5336 $host =~ s/\s+$//;
5337 }
5338
5339 _printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5340 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5341
5342 $recflags{$recid} = 1;
5343
5344 } # while ($recsth)
5345
5346 if ($self->{usecache}) {
5347 close ZONECACHE; # force the file to be written
5348 # catch obvious write errors that leave an empty temp file
5349 if (-s $tmpcache) {
5350 rename $tmpcache, $cachefile
5351 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5352 }
5353 }
5354
5355 } # if $changed or cache filesize is 0
5356
5357 };
5358 if ($@) {
5359 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5360 # error! something borked, and we should be able to fall back on the old cache file
5361 # report the error, somehow.
5362 } else {
5363 # mark zone as unmodified. Only do this if no errors, that way
5364 # export failures should recover a little more automatically.
5365 $zonesth->execute($revid);
5366 }
5367
5368 if ($self->{usecache}) {
5369 # We've already made as sure as we can that a cached zone file is "good",
5370 # although possibly stale/obsolete due to errors creating a new one.
5371 eval {
5372 open CACHE, "<$cachefile" or die $!;
5373 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5374 close CACHE;
5375 };
5376 die $@ if $@;
5377 }
5378
5379 } # while ($revsth)
5380
5381 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5382 "FROM records WHERE domain_id=? AND type=6");
5383 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5384 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5385# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5386 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5387 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5388 $domsth->execute();
5389 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5390##fixme: need to find a way to block opening symlinked files without introducing a race.
5391# O_NOFOLLOW
5392# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5393# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5394# still be followed.
5395# but that doesn't help other platforms. :/
5396 my $cachefile = "$self->{exportcache}/$dom";
5397 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5398 eval {
5399
5400 # write fresh records if:
5401 # - we are not using the cache
5402 # - force_refresh is set
5403 # - the zone has changed
5404 # - the cache file does not exist
5405 # - the cache file is empty
5406 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5407 if ($self->{usecache}) {
5408 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5409 $zonefilehandle = *ZONECACHE;
5410 }
5411
5412 # need to fetch this separately so the SOA comes first in the flatfile....
5413 # Just In Case we need/want to reimport from the flatfile later on.
5414 $soasth->execute($domid);
5415 my (@zsoa) = $soasth->fetchrow_array();
5416 _printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5417 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5418
5419 $recsth->execute($domid);
5420 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5421 next if $recflags{$recid};
5422
5423 # Check for out-of-zone data
5424 if ($host !~ /$dom$/) {
5425 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5426 next;
5427 }
5428
5429 # Spaces are evil.
5430 $host =~ s/^\s+//;
5431 $host =~ s/\s+$//;
5432 if ($typemap{$type} ne 'TXT') {
5433 # Leading or trailng spaces could be legit in TXT records.
5434 $val =~ s/^\s+//;
5435 $val =~ s/\s+$//;
5436 }
5437
5438 _printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5439 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5440
5441 $recflags{$recid} = 1;
5442
5443 } # while ($recsth)
5444
5445
5446 if ($self->{usecache}) {
5447 close ZONECACHE; # force the file to be written
5448 # catch obvious write errors that leave an empty temp file
5449 if (-s $tmpcache) {
5450 rename $tmpcache, $cachefile
5451 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5452 }
5453 }
5454
5455 } # if $changed or cache filesize is 0
5456
5457 };
5458 if ($@) {
5459 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5460 # error! something borked, and we should be able to fall back on the old cache file
5461 # report the error, somehow.
5462 } else {
5463 # mark domain as unmodified. Only do this if no errors, that way
5464 # export failures should recover a little more automatically.
5465 $zonesth->execute($domid);
5466 }
5467
5468 if ($self->{usecache}) {
5469 # We've already made as sure as we can that a cached zone file is "good",
5470 # although possibly stale/obsolete due to errors creating a new one.
5471 eval {
5472 open CACHE, "<$cachefile" or die $!;
5473 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
5474 close CACHE;
5475 };
5476 die $@ if $@;
5477 }
5478
5479 } # while ($domsth)
5480
5481 return 1;
5482} # end __export_tiny()
5483
5484
5485# Utility sub for __export_tiny above
5486sub _printrec_tiny {
5487 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
5488 $loc, $stamp, $expires, $stampactive) = @_;
5489
5490 $loc = '' if !$loc; # de-nullify - just in case
5491##fixme: handle case of record-with-location-that-doesn't-exist better.
5492# note this currently fails safe (tested) - records with a location that
5493# doesn't exist will not be sent to any client
5494# $loc = '' if !$lochash->{$loc};
5495
5496
5497## Records that are valid only before or after a set time
5498
5499# record due to expire sometime is the complex case. we don't want to just
5500# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
5501# is one day instead of the SOA minttl as BIND might do.
5502
5503# consider the case where a record is set to expire a week ahead, but the next
5504# day later you want to change it NOW (or as NOWish as you get with your DNS
5505# management practice). but now you're stuck, because someone, somewhere,
5506# has just done a lookup before your latest change was published, and they'll
5507# be caching that old, broken record for 1 day instead of your zone default
5508# TTL.
5509
5510# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
5511# to still have the expiry happen as scheduled, but we need to find some
5512# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
5513# but we need info on the export frequency.
5514
5515# export the normal, non-expiring record up until $stamp-<guesstimate>, then
5516# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
5517# takes over TTL management.
5518
5519 if ($stampactive) {
5520 if ($expires) {
5521 # record expires at $stamp; decide if we need to keep the TTL and ignore
5522 # the stamp for a time or if we need to change the TTL to 0 and convert
5523 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
5524# extra hack, optimally needs more knowledge of data export frequency
5525# smack the idiot customer who insists on 0 TTLs; they can suck up and
5526# deal with a 10-minute TTL. especially on scheduled changes. note this
5527# should be (export freq * 2), but we don't know the actual export frequency.
5528$ttl = 300 if $ttl == 0; #hack phtui
5529 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
5530 if ((time() + $ahead) < $stamp) {
5531 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
5532 $stamp = '';
5533 } else {
5534 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
5535 $ttl = 0;
5536 $stamp = unixtai64($stamp);
5537 $stamp =~ s/\@//;
5538 }
5539 } else {
5540 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
5541 $stamp = unixtai64($stamp);
5542 $stamp =~ s/\@//;
5543 }
5544 } else {
5545 # flag for active timestamp is false; don't actually put a timestamp in the output
5546 $stamp = '';
5547 }
5548
5549 # support tinydns' auto-TTL
5550 $ttl = '' if $ttl == -1;
5551# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
5552# NS 259200 => 3d
5553# all others 86400 => 1d
5554
5555 if ($revrec eq 'y') {
5556 $val = $zone if $val eq '@';
5557 } else {
5558 $host = $zone if $host eq '@';
5559 }
5560
5561 ## Convert a bare number into an octal-coded pair of octets.
5562 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
5563 sub octalize {
5564 my $tmp = shift;
5565 my $srctype = shift || 'h'; # default assumes hex string
5566 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
5567 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
5568 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
5569 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
5570 }
5571
5572## WARNING: This works to export even the whole Internet's worth of IP space...
5573## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
5574## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
5575## 0/0 is estimated to take ~54 hours and ~256G of disk
5576## RAM usage depends on how many non-template entries you have in the set.
5577## This should probably be done on record addition rather than export; large blocks may need to be done in a
5578## forked process
5579 sub __publish_subnet {
5580 my $sub = shift;
5581 my $recflags = shift;
5582 my $hpat = shift;
5583 my $fh = shift;
5584 my $ttl = shift;
5585 my $stamp = shift;
5586 my $loc = shift;
5587 my $ptronly = shift || 0;
5588
5589 my $iplist = $sub->splitref(32);
5590 foreach (@$iplist) {
5591 my $ip = $_->addr;
5592 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
5593 next if $ip =~ /\.(0|255)$/;
5594 next if $$recflags{$ip};
5595 $$recflags{$ip}++;
5596 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
5597 my $rec = $hpat; # start fresh with the template for each IP
5598 _template4_expand(\$rec, $ip);
5599 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
5600 ":$ttl:$stamp:$loc\n" or die $!;
5601 }
5602 }
5603
5604##fixme? append . to all host/val hostnames
5605 if ($typemap{$type} eq 'SOA') {
5606
5607 # host contains pri-ns:responsible
5608 # val is abused to contain refresh:retry:expire:minttl
5609##fixme: "manual" serial vs tinydns-autoserial
5610 # let's be explicit about abusing $host and $val
5611 my ($email, $primary) = (split /:/, $host)[0,1];
5612 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
5613 if ($revrec eq 'y') {
5614##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
5615# what about v6?
5616# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
5617 $zone = NetAddr::IP->new($zone);
5618 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5619 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
5620 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
5621 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5622 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5623 or die $!;
5624 }
5625 return; # skips "default" bits just below
5626 }
5627 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5628 }
5629 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5630 or die $!;
5631
5632 } elsif ($typemap{$type} eq 'A') {
5633
5634 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
5635
5636 } elsif ($typemap{$type} eq 'NS') {
5637
5638 if ($revrec eq 'y') {
5639 $val = NetAddr::IP->new($val);
5640 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5641 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
5642 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
5643 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5644 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5645 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5646 $$recflags{$szone2} = $val->masklen;
5647 }
5648 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
5649 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
5650 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
5651 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5652 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5653 $$recflags{$szone2} = $val->masklen;
5654 }
5655 } else {
5656 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5657 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5658 $$recflags{$val2} = $val->masklen;
5659 }
5660 } else {
5661 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
5662 }
5663
5664 } elsif ($typemap{$type} eq 'AAAA') {
5665
5666# print $datafile ":$host:28:";
5667 my $altgrp = 0;
5668 my @altconv;
5669 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
5670 foreach (split /:/, $val) {
5671 if (/^$/) {
5672 # flag blank entry; this is a series of 0's of (currently) unknown length
5673 $altconv[$altgrp++] = 's';
5674 } else {
5675 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
5676 $altconv[$altgrp++] = octalize($_)
5677 }
5678 }
5679 my $prefix = ":$host:28:";
5680 foreach my $octet (@altconv) {
5681 # if not 's', output
5682 $prefix .= $octet unless $octet =~ /^s$/;
5683 # if 's', output (9-array length)x literal '\000\000'
5684 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
5685 }
5686 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
5687
5688 } elsif ($typemap{$type} eq 'MX') {
5689
5690##fixme: what if we get an MX AXFRed into a reverse zone?
5691 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
5692
5693 } elsif ($typemap{$type} eq 'TXT') {
5694
5695##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
5696 if ($revrec eq 'n') {
5697 $val =~ s/:/\\072/g; # may need to replace other symbols
5698 print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
5699 } else {
5700 $host =~ s/:/\\072/g; # may need to replace other symbols
5701 my $val2 = NetAddr::IP->new($val);
5702 print $datafile "'"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5703 ":$host:$ttl:$stamp:$loc\n" or die $!;
5704 }
5705
5706# by-hand TXT
5707#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
5708#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
5709#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
5710
5711#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
5712#: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
5713
5714# very long TXT record as brought in by axfr-get
5715# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
5716# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
5717#:longtxt.deepnet.cx:16:
5718#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
5719#\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.
5720#\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.
5721#:3600
5722
5723 } elsif ($typemap{$type} eq 'CNAME') {
5724
5725 if ($revrec eq 'n') {
5726 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
5727 } else {
5728 my $val2 = NetAddr::IP->new($val);
5729 print $datafile "C"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5730 ":$host:$ttl:$stamp:$loc\n" or die $!;
5731 }
5732
5733 } elsif ($typemap{$type} eq 'SRV') {
5734
5735 # data is two-byte values for priority, weight, port, in that order,
5736 # followed by length/string data
5737
5738 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d') or die $!;
5739
5740 $val .= '.' if $val !~ /\.$/;
5741 foreach (split /\./, $val) {
5742 printf $datafile "\\%0.3o%s", length($_), $_ or die $!;
5743 }
5744 print $datafile "\\000:$ttl:$stamp:$loc\n" or die $!;
5745
5746 } elsif ($typemap{$type} eq 'RP') {
5747
5748 # RP consists of two mostly free-form strings.
5749 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
5750 # The second is the "hostname" of a TXT record with more info.
5751 my $prefix = ":$host:17:";
5752 my ($who,$what) = split /\s/, $val;
5753 foreach (split /\./, $who) {
5754 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5755 }
5756 $prefix .= '\000';
5757 foreach (split /\./, $what) {
5758 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5759 }
5760 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
5761
5762 } elsif ($typemap{$type} eq 'PTR') {
5763
5764 $zone = NetAddr::IP->new($zone);
5765 $$recflags{$val}++;
5766 if (!$zone->{isv6} && $zone->masklen > 24) {
5767 ($val) = ($val =~ /\.(\d+)$/);
5768 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
5769 ":$host:$ttl:$stamp:$loc\n" or die $!;
5770 } else {
5771 $val = NetAddr::IP->new($val);
5772 print $datafile "^".
5773 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5774 ":$host:$ttl:$stamp:$loc\n" or die $!;
5775 }
5776
5777 } elsif ($type == 65280) { # A+PTR
5778
5779 $$recflags{$val}++;
5780 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
5781
5782 } elsif ($type == 65281) { # AAAA+PTR
5783
5784 $$recflags{$val}++;
5785 # treat these as two separate records. since tinydns doesn't have
5786 # a native combined type, we have to create them separately anyway.
5787 # print both; a dangling record is harmless, and impossible via web
5788 # UI anyway
5789 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,28,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5790 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,12,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5791##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
5792# type 6 is for AAAA+PTR, type 3 is for AAAA
5793
5794 } elsif ($type == 65282) { # PTR template
5795
5796 # only useful for v4 with standard DNS software, since this expands all
5797 # IPs in $zone (or possibly $val?) with autogenerated records
5798 $val = NetAddr::IP->new($val);
5799 return if $val->{isv6};
5800
5801 if ($val->masklen <= 16) {
5802 foreach my $sub ($val->split(16)) {
5803 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5804 }
5805 } else {
5806 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5807 }
5808
5809 } elsif ($type == 65283) { # A+PTR template
5810
5811 $val = NetAddr::IP->new($val);
5812 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
5813 return if $val->{isv6};
5814
5815 if ($val->masklen <= 16) {
5816 foreach my $sub ($val->split(16)) {
5817 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5818 }
5819 } else {
5820 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5821 }
5822
5823 } elsif ($type == 65284) { # AAAA+PTR template
5824 # Stub for completeness. Could be exported to DNS software that supports
5825 # some degree of internal automagic in generic-record-creation
5826 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
5827
5828 } elsif ($type == 65285) { # Delegation
5829 # This is intended for reverse zones, but may prove useful in forward zones.
5830
5831 # All delegations need to create one or more NS records. The NS record handler knows what to do.
5832 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
5833 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
5834 if ($revrec eq 'y') {
5835 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
5836 # to redirect all of the individual IP lookups as well.
5837 # Not sure how this would actually resolve if a /24 or larger was delegated
5838 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
5839 my $dblock = NetAddr::IP->new($val);
5840 if (!$dblock->{isv6} && $dblock->masklen > 24) {
5841 my @subs = $dblock->split;
5842 foreach (@subs) {
5843 next if $$recflags{"$_"};
5844 my ($oct) = ($_->addr =~ /(\d+)$/);
5845 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
5846 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
5847 $$recflags{"$_"}++;
5848 }
5849 }
5850 }
5851
5852##
5853## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
5854##
5855
5856 } elsif ($type == 44) { # SSHFP
5857 my ($algo,$fpt,$fp) = split /\s+/, $val;
5858
5859 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
5860 while (my ($byte) = ($fp =~ /^(..)/) ) {
5861 $rec .= sprintf "\\%0.3o", hex($byte);
5862 $fp =~ s/^..//;
5863 }
5864 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
5865
5866 } else {
5867 # raw record. we don't know what's in here, so we ASS-U-ME the user has
5868 # put it in correctly, since either the user is messing directly with the
5869 # database, or the record was imported via AXFR
5870 # <split by char>
5871 # convert anything not a-zA-Z0-9.- to octal coding
5872
5873##fixme: add flag to export "unknown" record types - note we'll probably end up
5874# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
5875 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
5876
5877 } # record type if-else
5878
5879} # end _printrec_tiny()
5880
5881
5882## DNSDB::mailNotify()
5883# Sends notification mail to recipients regarding a DNSDB operation
5884sub mailNotify {
5885 my $self = shift;
5886 my $dbh = $self->{dbh};
5887 my ($subj,$message) = @_;
5888
5889 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
5890
5891 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
5892
5893 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
5894
5895 $mailer->mail($mailsender);
5896 $mailer->to($self->{mailnotify});
5897 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
5898 "To: <$self->{mailnotify}>\n",
5899 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
5900 "Subject: $subj\n",
5901 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
5902 "Organization: $self->{orgname}\n",
5903 "\n$message\n");
5904 $mailer->quit;
5905}
5906
5907# shut Perl up
59081;
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