source: trunk/DNSDB.pm@ 671

Last change on this file since 671 was 669, checked in by Kris Deugau, 10 years ago

/trunk

Missing piece from r668; need to actually check the CNAME target for it to
block URL/path components
  • Property svn:keywords set to Date Rev Author Id
File size: 233.6 KB
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1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 669 2015-01-13 22:31:00Z 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 # Two options for template record expansion:
222 template_skip_0 => 0, # publish .0 by default
223 template_skip_255 => 0, # publish .255 by default
224 );
225
226 # Config file parse calls.
227 # If we are passed a blank argument for $args{configfile},
228 # we should NOT parse the default config file - we will
229 # rely on hardcoded defaults OR caller-specified values.
230 # If we are passed a non-blank argument, parse that file.
231 # If no config file is specified, parse the default one.
232 my %siteconfig;
233 if (defined($args{configfile})) {
234 if ($args{configfile}) {
235 return if !__cfgload($args{configfile}, \%siteconfig);
236 }
237 } else {
238 return if !__cfgload($defconfig{configfile}, \%siteconfig);
239 }
240
241 # Assemble the object. Apply configuration hashes in order of precedence.
242 my $self = {
243 # Hardcoded defaults
244 %defconfig,
245 # Default config file OR caller-specified one, loaded above
246 %siteconfig,
247 # Caller-specified arguments
248 %args
249 };
250 bless $self, $class;
251
252 # Several settings are booleans. Handle multiple possible ways of setting them.
253 for my $boolopt ('log_failures', 'force_refresh', 'lowercase', 'usecache',
254 'template_skip_0', 'template_skip_255') {
255 if ($self->{$boolopt} ne '1' && $self->{$boolopt} ne '0') {
256 # true/false, on/off, yes/no all valid.
257 if ($self->{$boolopt} =~ /^(?:true|false|t|f|on|off|yes|no)$/) {
258 if ($self->{$boolopt} =~ /(?:true|t|on|yes)/) {
259 $self->{$boolopt} = 1;
260 } else {
261 $self->{$boolopt} = 0;
262 }
263 } else {
264 warn "Bad $boolopt setting $self->{$boolopt}, using default\n";
265 $self->{$boolopt} = $defconfig{$boolopt};
266 }
267 }
268 }
269
270 # Enum-ish option(s)
271 if (!grep /$self->{showrev_arpa}/, ('none','zone','record','all')) {
272 warn "Bad showrev_arpa setting $self->{showrev_arpa}, using default\n";
273 $self->{showrev_arpa} = 'none';
274 }
275
276 # Try to connect to the DB, and initialize a number of handy globals.
277 $self->{dbh} = connectDB($self->{dbname}, $self->{dbuser}, $self->{dbpass}, $self->{dbhost}) or return;
278 $self->initGlobals();
279
280 return $self;
281}
282
283sub DESTROY {
284 my $self = shift;
285 $self->{dbh}->disconnect if $self->{dbh};
286}
287
288sub errstr { $DNSDB::errstr; }
289
290##
291## utility functions
292##
293
294## DNSDB::_rectable()
295# Takes default+rdns flags, returns appropriate table name
296sub _rectable {
297 my $def = shift;
298 my $rev = shift;
299
300 return 'records' if $def ne 'y';
301 return 'default_records' if $rev ne 'y';
302 return 'default_rev_records';
303} # end _rectable()
304
305## DNSDB::_recparent()
306# Takes default+rdns flags, returns appropriate parent-id column name
307sub _recparent {
308 my $def = shift;
309 my $rev = shift;
310
311 return 'group_id' if $def eq 'y';
312 return 'rdns_id' if $rev eq 'y';
313 return 'domain_id';
314} # end _recparent()
315
316## DNSDB::_ipparent()
317# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
318# Takes default and reverse flags, IP (fragment) to check, parent zone ID,
319# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
320# database insertion)
321sub _ipparent {
322 my $self = shift;
323 my $dbh = $self->{dbh};
324 my $defrec = shift;
325 my $revrec = shift;
326 my $val = shift;
327 my $id = shift;
328 my $addr = shift;
329
330 return if $revrec ne 'y'; # this sub not useful in forward zones
331
332 $$addr = NetAddr::IP->new($$val); #necessary?
333
334 # subsub to split, reverse, and overlay an IP fragment on a netblock
335 sub __rev_overlay {
336 my $splitme = shift; # ':' or '.', m'lud?
337 my $parnet = shift;
338 my $val = shift;
339 my $addr = shift;
340
341 my $joinme = $splitme;
342 $splitme = '\.' if $splitme eq '.';
343 my @working = reverse(split($splitme, $parnet->addr));
344 my @parts = reverse(split($splitme, $$val));
345 for (my $i = 0; $i <= $#parts; $i++) {
346 $working[$i] = $parts[$i];
347 }
348 my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
349 return 0 unless $checkme->within($parnet);
350 $$addr = $checkme; # force "correct" IP to be recorded.
351 return 1;
352 }
353
354 my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
355 my $parnet = NetAddr::IP->new($parstr);
356
357 # Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
358 return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
359 return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
360
361 if ($$addr && ($$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/ || $$val =~ m|/\d+$|)) {
362 # the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address,
363 # or a netblock (only expected on templates)
364 # the rest we have to restructure before fiddling. *sigh*
365 return 1 if $$addr->within($parnet);
366 } else {
367 # We don't have a complete IP in $$val (yet)... unless we have a netblock
368 if ($parnet->addr =~ /:/) {
369 $$val =~ s/^:+//; # gotta strip'em all...
370 return __rev_overlay(':', $parnet, $val, $addr);
371 }
372 if ($parnet->addr =~ /\./) {
373 $$val =~ s/^\.+//;
374 return __rev_overlay('.', $parnet, $val, $addr);
375 }
376 # should be impossible to get here...
377 }
378 # ... and here.
379 # can't do nuttin' in forward zones
380} # end _ipparent()
381
382## DNSDB::_maybeip()
383# Wrapper for quick "does this look like an IP address?" regex, so we don't make dumb copy-paste mistakes
384sub _maybeip {
385 my $izzit = shift; # reference
386 return 1 if $$izzit =~ m,^(?:[\d\./]+|[0-9a-fA-F:/]+)$,;
387}
388
389## DNSDB::_inrev()
390# Check if a given "hostname" is within a given reverse zone
391# Takes a reference to the "hostname" and the reverse zone CIDR as a NetAddr::IP
392# Returns true/false. Sets $errstr on errors.
393sub _inrev {
394 my $self = shift;
395 my $dbh = $self->{dbh};
396 # References, since we might munge them
397 my $fq = shift;
398 my $zone = shift;
399
400 # set default error
401 $errstr = "$$fq not within $zone";
402
403 # Unlike forward zones, we will not coerce the data into the reverse zone - an A record
404 # in a reverse zone is already silly enough without appending a mess of 1.2.3.in-addr.arpa
405 # (or worse, 1.2.3.4.5.6.7.8.ip6.arpa) on the end of the nominal "hostname".
406 # We're also going to allow the "hostname" to be stored as .arpa or IP, because of
407 # non-IP FQDNs in .arpa
408 if ($$fq =~ /\.arpa$/) {
409 # "FQDN" could be any syntactically legitimate string, but it must be within the formal
410 # .arpa zone. Note we're not validating these for correct reverse-IP values.
411 # yes, we really need the v6 branch on the end here.
412 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
413 return unless $$fq =~ /$zone$/;
414 } else {
415 # in most cases we should be getting a real IP as the "FQDN" to test
416 my $addr = new NetAddr::IP $$fq if _maybeip($fq);
417
418 # "FQDN" should be a valid IP address. Normalize formatting if so.
419 if (!$addr) {
420 $errstr = "$$fq is not a valid IP address";
421 return;
422 }
423 return if !$zone->contains($addr);
424 ($$fq = $addr) =~ s{/(?:32|128)$}{};
425 }
426 return 1;
427} # end _inrev()
428
429## DNSDB::_hostparent()
430# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
431# Takes a hostname.
432# Returns the domain ID of the parent domain if one was found.
433sub _hostparent {
434 my $self = shift;
435 my $dbh = $self->{dbh};
436 my $hname = shift;
437
438 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
439 my @hostbits = split /\./, $hname;
440 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE lower(domain) = lower(?) GROUP BY domain_id");
441 foreach (@hostbits) {
442 $sth->execute($hname);
443 my ($found, $parid) = $sth->fetchrow_array;
444 if ($found) {
445 return $parid;
446 }
447 $hname =~ s/^$_\.//;
448 }
449} # end _hostparent()
450
451## DNSDB::_log()
452# Log an action
453# Takes a log entry hash containing at least:
454# group_id, log entry
455# and optionally one or more of:
456# domain_id, rdns_id
457# The %userdata hash provides the user ID, username, and fullname
458sub _log {
459 my $self = shift;
460 my $dbh = $self->{dbh};
461
462 my %args = @_;
463
464 $args{rdns_id} = 0 if !$args{rdns_id};
465 $args{domain_id} = 0 if !$args{domain_id};
466
467##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
468# if ($self->{log_channel} eq 'sql') {
469 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
470 undef,
471 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
472 $self->{loguserid}, $self->{logusername}, $self->{logfullname}) );
473# } elsif ($self->{log_channel} eq 'file') {
474# } elsif ($self->{log_channel} eq 'syslog') {
475# }
476} # end _log
477
478
479##
480## Record validation subs.
481##
482
483## All of these subs take substantially the same arguments:
484# a hash containing at least the following keys:
485# - defrec (default/live flag)
486# - revrec (forward/reverse flag)
487# - id (parent entity ID)
488# - host (hostname)
489# - rectype
490# - val (IP, hostname [CNAME/MX/SRV] or text)
491# - addr (NetAddr::IP object from val. May be undef.)
492# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
493# host, rectype, and addr should be references as these may be modified in validation
494
495# A record
496sub _validate_1 {
497 my $self = shift;
498 my $dbh = $self->{dbh};
499
500 my %args = @_;
501
502# only for strict type restrictions
503# return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
504
505 if ($args{revrec} eq 'y') {
506 # Get the revzone, so we can see if ${$args{val}} is in that zone
507 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
508
509 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
510
511 # ${$args{val}} is either a valid IP or a string ending with the .arpa zone name;
512 # now check if it's a well-formed FQDN
513 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
514 ${$args{val}} =~ /\.arpa$/;
515
516 # Check IP is well-formed, and that it's a v4 address
517 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
518 return ('FAIL',"A record must be a valid IPv4 address")
519 unless ${$args{host}} =~ m{^\d+\.\d+\.\d+\.\d+(/\d+)?$};
520 $args{addr} = new NetAddr::IP ${$args{host}};
521 return ('FAIL',"A record must be a valid IPv4 address")
522 unless $args{addr} && !$args{addr}->{isv6};
523 # coerce IP/value to normalized form for storage
524 ${$args{host}} = $args{addr}->addr;
525
526 # I'm just going to ignore the utterly barmy idea of an A record in the *default*
527 # records for a reverse zone; it's bad enough to find one in funky legacy data.
528
529 } else {
530 # revrec ne 'y'
531
532 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
533 # or the intended parent domain for live records.
534 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
535 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
536
537 # Check if it's a proper formal .arpa name for an IP, and renormalize it to the IP
538 # value if so. Done mainly for symmetry with PTR/A+PTR, and saves a conversion on export.
539 if (${$args{val}} =~ /\.arpa$/) {
540 my ($code,$tmp) = _zone2cidr(${$args{val}});
541 if ($code ne 'FAIL') {
542 ${$args{val}} = $tmp->addr;
543 $args{addr} = $tmp;
544 }
545 }
546 # Check IP is well-formed, and that it's a v4 address
547 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
548 return ('FAIL',"A record must be a valid IPv4 address")
549 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
550 $args{addr} = new NetAddr::IP ${$args{val}};
551 return ('FAIL',"A record must be a valid IPv4 address")
552 unless $args{addr} && !$args{addr}->{isv6};
553 # coerce IP/value to normalized form for storage
554 ${$args{val}} = $args{addr}->addr;
555 }
556
557 return ('OK','OK');
558} # done A record
559
560# NS record
561sub _validate_2 {
562 my $self = shift;
563 my $dbh = $self->{dbh};
564
565 my %args = @_;
566
567 # NS target check - IP addresses not allowed. Must be a more or less well-formed hostname.
568 if ($args{revrec} eq 'y') {
569 return ('FAIL', "NS records cannot point directly to an IP address")
570 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
571##enhance: Look up the passed value to see if it exists. Ooo, fancy.
572 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
573 } else {
574 return ('FAIL', "NS records cannot point directly to an IP address")
575 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
576##enhance: Look up the passed value to see if it exists. Ooo, fancy.
577 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
578 }
579
580 # Check that the target of the record is within the parent.
581 if ($args{defrec} eq 'n') {
582 # Check if IP/address/zone/"subzone" is within the parent
583 if ($args{revrec} eq 'y') {
584 # Get the revzone, so we can see if ${$args{val}} is in that zone
585 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
586
587 # Note the NS record may or may not be for the zone itself, it may be a pointer for a subzone
588 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
589
590 # ${$args{val}} is either a valid IP or a string ending with the .arpa zone name;
591 # now check if it's a well-formed FQDN
592##enhance or ##fixme
593# convert well-formed .arpa names to IP addresses to match old "strict" validation design
594 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
595 ${$args{val}} =~ /\.arpa$/;
596 } else {
597 # Forcibly append the domain name if the hostname being added does not end with the current domain name
598 my $pname = $self->domainName($args{id});
599 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
600 }
601 } else {
602 # Default reverse NS records should always refer to the implied parent.
603 if ($args{revrec} eq 'y') {
604 ${$args{val}} = 'ZONE';
605 } else {
606 ${$args{host}} = 'DOMAIN';
607 }
608 }
609
610 return ('OK','OK');
611} # done NS record
612
613# CNAME record
614sub _validate_5 {
615 my $self = shift;
616 my $dbh = $self->{dbh};
617
618 my %args = @_;
619
620 # CNAMEs in reverse zones shouldn't be handled manually, they should be generated on
621 # export by use of the "delegation" type. For the masochistic, and those importing
622 # legacy data from $deity-knows-where, we'll support them.
623
624 if ($args{revrec} eq 'y') {
625 # CNAME target check - IP addresses not allowed. Must be a more or less well-formed hostname.
626 return ('FAIL', "CNAME records cannot point directly to an IP address")
627 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
628
629 if ($args{defrec} eq 'n') {
630 # Get the revzone, so we can see if ${$args{val}} is in that zone
631 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
632 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
633 # CNAMEs can not be used for parent nodes; just leaf nodes with no other record types
634 # note that this WILL probably miss some edge cases.
635 if (${$args{val}} =~ /^[\d.\/]+$/) {
636 # convert IP "hostname" to .arpa
637 my $tmphn = _ZONE(NetAddr::IP->new(${$args{val}}), 'ZONE', 'r', '.');
638 my $tmpz = _ZONE($revzone, 'ZONE', 'r', '.');
639 return ('FAIL', "The bare zone may not be a CNAME") if $tmphn eq $tmpz;
640##enhance: look up the target name and publish that instead on export
641 }
642 }
643
644##enhance or ##fixme
645# convert well-formed .arpa names to IP addresses to match old "strict" validation design
646 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
647 ${$args{val}} =~ /\.arpa$/;
648
649##enhance: Look up the passed value to see if it exists. Ooo, fancy.
650 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
651 } else {
652 # CNAME target check - IP addresses not allowed. Must be a more or less well-formed hostname.
653 return ('FAIL', "CNAME records cannot point directly to an IP address")
654 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
655
656 # Make sure target is a well-formed hostname
657 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
658
659 # Forcibly append the domain name if the hostname being added does not end with the current domain name
660 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
661 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
662
663 # CNAMEs can not be used for parent nodes; just leaf nodes with no other record types
664 # Enforce this for the zone name
665 return ('FAIL', "The bare zone name may not be a CNAME") if ${$args{host}} eq $pname || ${$args{host}} =~ /^\@/;
666
667##enhance: Look up the passed value to see if it exists. Ooo, fancy.
668 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
669 }
670
671 return ('OK','OK');
672} # done CNAME record
673
674# SOA record
675sub _validate_6 {
676 # Smart monkeys won't stick their fingers in here; we have
677 # separate dedicated routines to deal with SOA records.
678 return ('OK','OK');
679} # done SOA record
680
681# PTR record
682sub _validate_12 {
683 my $self = shift;
684 my $dbh = $self->{dbh};
685
686 my %args = @_;
687 my $warnflag = '';
688
689 if ($args{defrec} eq 'y') {
690 if ($args{revrec} eq 'y') {
691 if (${$args{val}} =~ /^[\d.]+$/) {
692 # v4 or bare number
693 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
694 # probable full IP. pointless but harmless. validate/normalize.
695 my $tmp = NetAddr::IP->new(${$args{val}})->addr
696 or return ('FAIL', "${$args{val}} is not a valid IP address");
697 ${$args{val}} = $tmp;
698 $warnflag = "${$args{val}} will only be added to a small number of zones\n";
699 } elsif (${$args{val}} =~ /^\d+$/) {
700 # bare number. This can be expanded to either a v4 or v6 zone
701 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
702 } else {
703 # $deity-only-knows what kind of gibberish we've been given. Only usable as a formal .arpa name.
704 # Append ARPAZONE to be replaced with the formal .arpa zone name when converted to a live record.
705 ${$args{val}} =~ s/\.*$/.ARPAZONE/ unless ${$args{val}} =~ /ARPAZONE$/;
706 }
707 } elsif (${$args{val}} =~ /^[a-fA-F0-9:]+$/) {
708 # v6 or fragment; pray it's not complete gibberish
709 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
710 } else {
711 # $deity-only-knows what kind of gibberish we've been given. Only usable as a formal .arpa name.
712 # Append ARPAZONE to be replaced with the formal .arpa zone name when converted to a live record.
713 ${$args{val}} .= ".ARPAZONE" unless ${$args{val}} =~ /ARPAZONE$/;
714 }
715 } else {
716 return ('FAIL', "PTR records are not supported in default record sets for forward zones (domains)");
717 }
718 } else {
719 if ($args{revrec} eq 'y') {
720 # Get the revzone, so we can see if ${$args{val}} is in that zone
721 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
722
723 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
724
725 if (${$args{val}} =~ /\.arpa$/) {
726 # Check that it's well-formed
727 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
728
729 # Check if it's a proper formal .arpa name for an IP, and renormalize it to the IP
730 # value if so. I can't see why someone would voluntarily work with those instead of
731 # the natural IP values but what the hey.
732 my ($code,$tmp) = _zone2cidr(${$args{val}});
733 ${$args{val}} = $tmp->addr if $code ne 'FAIL';
734 } else {
735 # not a formal .arpa name, so it should be an IP value. Validate...
736 return ('FAIL', "${$args{val}} is not a valid IP value")
737 unless ${$args{val}} =~ /^(?:\d+\.\d+\.\d+\.\d+|[a-fA-F0-9:]+)$/;
738 $args{addr} = NetAddr::IP->new(${$args{val}})
739 or return ('FAIL', "IP/value looks like an IP address but isn't valid");
740 # ... and normalize.
741 ${$args{val}} = $args{addr}->addr;
742 }
743 # Validate PTR target for form.
744 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
745 } else { # revrec ne 'y'
746 # Fetch the domain and append if the passed hostname isn't within it.
747 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
748 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
749 # Validate hostname and target for form
750 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
751 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
752 }
753 }
754
755# Multiple PTR records do NOT generally do what most people believe they do,
756# and tend to fail in the most awkward way possible. Check and warn.
757
758 my $chkbase = ${$args{val}};;
759 my $hostcol = 'val'; # Reverse zone hostnames are stored "backwards"
760 if ($args{revrec} eq 'n') { # PTRs in forward zones should be rare.
761 $chkbase = ${$args{host}};
762 $hostcol = 'host';
763 }
764 my @checkvals = ($chkbase);
765 if ($chkbase =~ /,/) {
766 # push . and :: variants into checkvals if $chkbase has ,
767 my $tmp;
768 ($tmp = $chkbase) =~ s/,/./;
769 push @checkvals, $tmp;
770 ($tmp = $chkbase) =~ s/,/::/;
771 push @checkvals, $tmp;
772 }
773
774 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE $hostcol = ?");
775 foreach my $checkme (@checkvals) {
776 if ($args{update}) {
777 # $args{update} contains the ID of the record being updated. If the list of records that matches
778 # the new hostname specification doesn't include this, the change effectively adds a new PTR that's
779 # the same as one or more existing ones.
780 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
781 " WHERE val = ?", undef, ($checkme)) };
782 $warnflag .= "PTR record for $checkme already exists; adding another will probably not do what you want"
783 if @ptrs && (!grep /^$args{update}$/, @ptrs);
784 } else {
785 # New record. Always warn if a PTR exists
786 # Don't warn when a matching A record exists tho
787 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
788 " WHERE $hostcol = ? AND (type=12 OR type=65280 OR type=65281)", undef, ($checkme));
789 $warnflag .= "PTR record for $checkme already exists; adding another will probably not do what you want"
790 if $ptrcount;
791 }
792 }
793
794 return ('WARN',$warnflag) if $warnflag;
795
796 return ('OK','OK');
797} # done PTR record
798
799# MX record
800sub _validate_15 {
801 my $self = shift;
802 my $dbh = $self->{dbh};
803
804 my %args = @_;
805
806# only for strict type restrictions
807# return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
808
809 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
810 ${$args{dist}} =~ s/\s*//g;
811 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
812
813 ${$args{fields}} = "distance,";
814 push @{$args{vallist}}, ${$args{dist}};
815
816 if ($args{revrec} eq 'n') {
817 # MX target check - IP addresses not allowed. Must be a more or less well-formed hostname.
818 return ('FAIL', "MX records cannot point directly to an IP address")
819 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
820
821 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
822 # or the intended parent domain for live records.
823 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
824 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
825 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
826 } else {
827 # MX target check - IP addresses not allowed. Must be a more or less well-formed hostname.
828 return ('FAIL', "MX records cannot point directly to an IP address")
829 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
830
831 # MX records in reverse zones get stricter treatment. The UI bars adding them in
832 # reverse record sets, but we "need" to allow editing existing ones. And we'll allow
833 # editing them if some loon manually munges one into a default reverse record set.
834 if ($args{defrec} eq 'n') {
835 # Get the revzone, so we can see if ${$args{val}} is in that zone
836 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
837 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
838 }
839
840##enhance or ##fixme
841# convert well-formed .arpa names to IP addresses to match old "strict" validation design
842 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
843 ${$args{val}} =~ /\.arpa$/;
844
845##enhance: Look up the passed value to see if it exists. Ooo, fancy.
846 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
847
848 }
849
850 return ('OK','OK');
851} # done MX record
852
853# TXT record
854sub _validate_16 {
855 my $self = shift;
856
857 my %args = @_;
858
859 if ($args{revrec} eq 'n') {
860 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
861 # or the intended parent domain for live records.
862 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
863 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
864 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
865 } else {
866 # We don't coerce reverse "hostnames" into the zone, mainly because we store most sane
867 # records as IP values, not .arpa names.
868 if ($args{defrec} eq 'n') {
869 # Get the revzone, so we can see if ${$args{val}} is in that zone
870 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
871 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
872 }
873
874##enhance or ##fixme
875# convert well-formed .arpa names to IP addresses to match old "strict" validation design
876 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
877 ${$args{val}} =~ /\.arpa$/;
878 }
879
880 # Could arguably put a WARN return here on very long (>512) records
881 return ('OK','OK');
882} # done TXT record
883
884# RP record
885sub _validate_17 {
886 # Probably have to validate these separately some day. Call _validate_16() above since
887 # they're otherwise very similar
888 return _validate_16(@_);
889} # done RP record
890
891# AAAA record
892# Almost but not quite an exact duplicate of A record
893sub _validate_28 {
894 my $self = shift;
895 my $dbh = $self->{dbh};
896
897 my %args = @_;
898
899# only for strict type restrictions
900# return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
901
902 if ($args{revrec} eq 'y') {
903 # Get the revzone, so we can see if ${$args{val}} is in that zone
904 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
905
906 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
907
908 # ${$args{val}} is either a valid IP or a string ending with the .arpa zone name;
909 # now check if it's a well-formed FQDN
910 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
911 ${$args{val}} =~ /\.arpa$/;
912
913 # Check IP is well-formed, and that it's a v4 address
914 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
915 return ('FAIL',"AAAA record must be a valid IPv6 address")
916 unless ${$args{host}} =~ /^[a-fA-F0-9:]+$/;
917 $args{addr} = new NetAddr::IP ${$args{host}};
918 return ('FAIL',"AAAA record must be a valid IPv6 address")
919 unless $args{addr} && $args{addr}->{isv6};
920 # coerce IP/value to normalized form for storage
921 ${$args{host}} = $args{addr}->addr;
922
923 # I'm just going to ignore the utterly barmy idea of an AAAA record in the *default*
924 # records for a reverse zone; it's bad enough to find one in funky legacy data.
925
926 } else {
927 # revrec ne 'y'
928
929 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
930 # or the intended parent domain for live records.
931 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
932 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
933
934 # Check if it's a proper formal .arpa name for an IP, and renormalize it to the IP
935 # value if so. Done mainly for symmetry with PTR/AAAA+PTR, and saves a conversion on export.
936 if (${$args{val}} =~ /\.arpa$/) {
937 my ($code,$tmp) = _zone2cidr(${$args{val}});
938 if ($code ne 'FAIL') {
939 ${$args{val}} = $tmp->addr;
940 $args{addr} = $tmp;
941 }
942 }
943 # Check IP is well-formed, and that it's a v6 address
944 return ('FAIL',"AAAA record must be a valid IPv6 address")
945 unless ${$args{val}} =~ /^[a-fA-F0-9:]+$/;
946 $args{addr} = new NetAddr::IP ${$args{val}};
947 return ('FAIL',"AAAA record must be a valid IPv6 address")
948 unless $args{addr} && $args{addr}->{isv6};
949 # coerce IP/value to normalized form for storage
950 ${$args{val}} = $args{addr}->addr;
951 }
952
953 return ('OK','OK');
954} # done AAAA record
955
956# SRV record
957sub _validate_33 {
958 my $self = shift;
959 my $dbh = $self->{dbh};
960
961 my %args = @_;
962
963# Not absolutely true but WTF use is an SRV record for a reverse zone?
964# return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
965
966 # Key additional record parts. Always required.
967 return ('FAIL',"Distance, port and weight are required for SRV records")
968 unless defined(${$args{weight}}) && defined(${$args{port}}) && defined(${$args{dist}});
969 ${$args{dist}} =~ s/\s*//g;
970 ${$args{weight}} =~ s/\s*//g;
971 ${$args{port}} =~ s/\s*//g;
972 return ('FAIL',"Distance, port and weight are required, and must be numeric")
973 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
974
975 ${$args{fields}} = "distance,weight,port,";
976 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
977
978 if ($args{revrec} eq 'n') {
979 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
980 # or the intended parent domain for live records.
981 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
982 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
983
984##enhance: Rejig so that we can pass back a WARN red flag, instead of
985# hard-failing, since it seems that purely from the DNS record perspective,
986# SRV records without underscores are syntactically valid
987 # Not strictly true, but SRV records not following this convention won't be found.
988 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
989 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
990
991 # SRV target check - IP addresses not allowed. Must be a more or less well-formed hostname.
992 return ('FAIL', "SRV records cannot point directly to an IP address")
993 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
994 } else {
995 # hm. we can't do anything sane with IP values here; part of the record data is in
996 # fact encoded in the "hostname". enforce .arpa names? OTOH, SRV records in a reverse
997 # zone are pretty silly.
998
999##enhance: Rejig so that we can pass back a WARN red flag, instead of
1000# hard-failing, since it seems that purely from the DNS record perspective,
1001# SRV records without underscores are syntactically valid
1002 # Not strictly true, but SRV records not following this convention won't be found.
1003 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
1004 unless ${$args{val}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
1005
1006 # SRV target check - IP addresses not allowed. Must be a more or less well-formed hostname.
1007 return ('FAIL', "SRV records cannot point directly to an IP address")
1008 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
1009
1010 # SRV records in reverse zones get stricter treatment. The UI bars adding them in
1011 # reverse record sets, but we "need" to allow editing existing ones. And we'll allow
1012 # editing them if some loon manually munges one into a default reverse record set.
1013 if ($args{defrec} eq 'n') {
1014 # Get the revzone, so we can see if ${$args{val}} is in that zone
1015 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
1016 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
1017 }
1018
1019##enhance or ##fixme
1020# convert well-formed .arpa names to IP addresses to match old "strict" validation design
1021 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
1022 ${$args{val}} =~ /\.arpa$/;
1023
1024##enhance: Look up the passed value to see if it exists. Ooo, fancy.
1025 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
1026
1027 }
1028
1029 return ('OK','OK');
1030} # done SRV record
1031
1032# Now the custom types
1033
1034# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
1035sub _validate_65280 {
1036 my $self = shift;
1037 my $dbh = $self->{dbh};
1038
1039 my %args = @_;
1040
1041 my $code = 'OK';
1042 my $msg = 'OK';
1043
1044 if ($args{defrec} eq 'n') {
1045 # live record; revrec determines whether we validate the PTR or A component first.
1046
1047 # Fail early on non-IP gibberish in ${$args{val}}. Arguably .arpa names might be acceptable
1048 # but that gets stupid in forward zones, since these records are shared.
1049 return ('FAIL', "$typemap{${$args{rectype}}} record must be a valid IPv4 address")
1050 if ${$args{rectype}} == 65280 && ${$args{val}} !~ m{^\d+\.\d+\.\d+\.\d+(?:/\d+)?$};
1051 return ('FAIL', "$typemap{${$args{rectype}}} record must be a valid IPv6 address")
1052 if ${$args{rectype}} == 65281 && ${$args{val}} !~ m{^[a-fA-F0-9:]+(?:/\d+)?$};
1053 # If things are not OK, this should prevent Stupid in the error log.
1054 $args{addr} = new NetAddr::IP ${$args{val}}
1055 or return ('FAIL', "$typemap{${$args{rectype}}} record must be a valid IPv".
1056 (${$args{rectype}} == 65280 ? '4' : '6')." address");
1057 ${$args{val}} = $args{addr}->addr;
1058
1059 if ($args{revrec} eq 'y') {
1060 ($code,$msg) = $self->_validate_12(%args);
1061 return ($code,$msg) if $code eq 'FAIL';
1062
1063 # check A+PTR is really v4
1064 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
1065 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
1066 # check AAAA+PTR is really v6
1067 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
1068 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
1069
1070 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
1071 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1072 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1073 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1074 $msg .= "\n$addmsg" if $code eq 'WARN';
1075 $msg = $addmsg if $code eq 'OK';
1076 ${$args{rectype}} = $reverse_typemap{PTR};
1077 return ('WARN', $msg);
1078 }
1079
1080 # Add domain ID to field list and values
1081 ${$args{fields}} .= "domain_id,";
1082 push @{$args{vallist}}, ${$args{domid}};
1083
1084 } else {
1085 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
1086 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
1087 return ($code,$msg) if $code eq 'FAIL';
1088
1089 # Check if the requested reverse zone exists - note, an IP fragment won't
1090 # work here since we don't *know* which parent to put it in.
1091 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1092 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1093 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1094 if (!$revid) {
1095 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
1096 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
1097 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1098 return ('WARN', $msg);
1099 }
1100
1101 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
1102 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
1103 if ($args{update}) {
1104 # Record update. There should usually be an existing PTR (the record being updated)
1105 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
1106 " WHERE val = ?", undef, (${$args{val}})) };
1107 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
1108 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
1109 $code = 'WARN';
1110 }
1111 } else {
1112 # New record. Always warn if a PTR exists
1113 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
1114 " WHERE val = ?", undef, (${$args{val}}));
1115 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
1116 if $ptrcount;
1117 $code = 'WARN' if $ptrcount;
1118 }
1119
1120 # Add the reverse zone ID to the fieldlist
1121 ${$args{fields}} .= "rdns_id,";
1122 push @{$args{vallist}}, $revid;
1123
1124 # Coerce the hostname back to the domain; this is so it displays and manipulates
1125 # sanely in the reverse zone.
1126 if (${$args{host}} eq '@') {
1127 ${$args{host}} = $self->domainName($args{id}); # errors? What errors?
1128 }
1129 } # revrec ne 'y'
1130
1131 } else { # defrec eq 'y'
1132
1133 if ($args{revrec} eq 'y') {
1134 ($code,$msg) = $self->_validate_12(%args);
1135 return ($code,$msg) if $code eq 'FAIL';
1136 if (${$args{rectype}} == 65280) {
1137 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
1138 if ${$args{val}} =~ /:/;
1139 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
1140 } elsif (${$args{rectype}} == 65281) {
1141 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
1142 if ${$args{val}} =~ /\./;
1143 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
1144 }
1145 } else {
1146 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
1147 # domains, since you wouldn't be able to substitute both domain and reverse zone
1148 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
1149 # confuse the hell out of pretty much anything that uses them.
1150##fixme: make this a config flag?
1151 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
1152 }
1153 }
1154
1155 return ($code, $msg);
1156} # done A+PTR record
1157
1158# AAAA+PTR record
1159# A+PTR above has been magicked to handle AAAA+PTR as well.
1160sub _validate_65281 {
1161 return _validate_65280(@_);
1162} # done AAAA+PTR record
1163
1164# PTR template record
1165sub _validate_65282 {
1166 my $self = shift;
1167 my $dbh = $self->{dbh};
1168
1169 my %args = @_;
1170
1171 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
1172 if ($args{revrec} eq 'y') {
1173 if ($args{defrec} eq 'n') {
1174 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
1175 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1176##fixme: warn if $args{val} is not /31 or larger block?
1177 ${$args{val}} = "$args{addr}";
1178 } else {
1179 if (${$args{val}} =~ /\./) {
1180 # looks like a v4 or fragment
1181 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
1182 # woo! a complete IP! validate it and normalize, or fail.
1183 $args{addr} = NetAddr::IP->new(${$args{val}})
1184 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
1185 ${$args{val}} = "$args{addr}";
1186 } else {
1187 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
1188 }
1189 } elsif (${$args{val}} =~ /[a-f:]/) {
1190 # looks like a v6 or fragment
1191 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
1192 if ($args{addr}) {
1193 if ($args{addr}->addr =~ /^0/) {
1194 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
1195 } else {
1196 ${$args{val}} = "$args{addr}";
1197 }
1198 }
1199 } else {
1200 # bare number (probably). These could be v4 or v6, so we'll
1201 # expand on these on creation of a reverse zone.
1202 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
1203 }
1204 }
1205##fixme: validate %-patterns?
1206
1207# Unlike single PTR records, there is absolutely no way to sanely support multiple
1208# PTR templates for the same block, since they expect to expand to all the individual
1209# IPs on export. Nested templates should be supported though.
1210
1211 my @checkvals = (${$args{val}});
1212 if (${$args{val}} =~ /,/) {
1213 # push . and :: variants into checkvals if val has ,
1214 my $tmp;
1215 ($tmp = ${$args{val}}) =~ s/,/./;
1216 push @checkvals, $tmp;
1217 ($tmp = ${$args{val}}) =~ s/,/::/;
1218 push @checkvals, $tmp;
1219 }
1220##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
1221# Per Netblock such that they don't conflict on export
1222 my $typeck;
1223# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
1224 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
1225# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
1226 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
1227# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
1228 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
1229 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
1230 "AND (type=65282 OR $typeck)");
1231 foreach my $checkme (@checkvals) {
1232 $pcsth->execute($checkme);
1233 my ($rc) = $pcsth->fetchrow_array;
1234 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
1235 }
1236
1237 } else {
1238 return ('FAIL', "Forward zones cannot contain PTR records");
1239 }
1240
1241 return ('OK','OK');
1242} # done PTR template record
1243
1244# A+PTR template record
1245sub _validate_65283 {
1246 my $self = shift;
1247 my $dbh = $self->{dbh};
1248
1249 my %args = @_;
1250
1251 my ($code,$msg) = ('OK','OK');
1252
1253##fixme: need to fiddle things since A+PTR templates are acceptable in live
1254# forward zones but not default records
1255 if ($args{defrec} eq 'n') {
1256 if ($args{revrec} eq 'n') {
1257
1258 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
1259 # or the intended parent domain for live records.
1260 my $pname = $self->domainName($args{id});
1261 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
1262
1263 # check for form; note this checks both normal and "other" hostnames.
1264 return ('FAIL', $errstr)
1265 if !_check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
1266
1267 # Check if the requested reverse zone exists - note, an IP fragment won't
1268 # work here since we don't *know* which parent to put it in.
1269 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1270 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1271 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1272 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
1273 if (!$revid) {
1274 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
1275 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
1276##fixme: add A template, AAAA template types?
1277# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1278 return ('FAIL', $msg);
1279 }
1280
1281 # Add reverse zone ID to field list and values
1282 ${$args{fields}} .= "rdns_id,";
1283 push @{$args{vallist}}, $revid;
1284
1285 } else {
1286 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
1287 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1288 ${$args{val}} = "$args{addr}";
1289
1290 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1291 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1292 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1293 $msg .= "\n$addmsg" if $code eq 'WARN';
1294 $msg = $addmsg if $code eq 'OK';
1295 ${$args{rectype}} = 65282;
1296 return ('WARN', $msg);
1297 }
1298
1299 # Add domain ID to field list and values
1300 ${$args{fields}} .= "domain_id,";
1301 push @{$args{vallist}}, ${$args{domid}};
1302 }
1303
1304 } else {
1305 my ($code,$msg) = $self->_validate_65282(%args);
1306 return ($code, $msg) if $code eq 'FAIL';
1307 # get domain, check against ${$args{name}}
1308 }
1309
1310 return ('OK','OK');
1311} # done A+PTR template record
1312
1313# AAAA+PTR template record
1314# Not sure this can be handled sanely due to the size of IPv6 address space
1315sub _validate_65284 {
1316 return ('OK','OK');
1317} # done AAAA+PTR template record
1318
1319# Delegation record
1320# This is essentially a specialized clone of the NS record, primarily useful
1321# for delegating IPv4 sub-/24 reverse blocks
1322sub _validate_65285 {
1323 my $self = shift;
1324 my $dbh = $self->{dbh};
1325
1326 my %args = @_;
1327
1328# Almost, but not quite, identical to NS record validation.
1329
1330 # Check that the target of the record is within the parent.
1331 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
1332 if ($args{defrec} eq 'n') {
1333 # Check if IP/address/zone/"subzone" is within the parent
1334 if ($args{revrec} eq 'y') {
1335 my $tmpip = NetAddr::IP->new(${$args{val}});
1336 my $pname = $self->revName($args{id});
1337 return ('FAIL',"${$args{val}} not within $pname")
1338 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
1339 # Normalize
1340 ${$args{val}} = "$tmpip";
1341 } else {
1342 my $pname = $self->domainName($args{id});
1343 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
1344 }
1345 } else {
1346 return ('FAIL',"Delegation records are not permitted in default record sets");
1347 }
1348 return ('OK','OK');
1349}
1350
1351# Subs not specific to a particular record type
1352
1353# Convert $$host and/or $$val to lowercase as appropriate.
1354# Should only be called if $self->{lowercase} is true.
1355# $rectype is also a reference for caller convenience
1356sub _caseclean {
1357 my ($rectype, $host, $val, $defrec, $revrec) = @_;
1358
1359 # Can't case-squash default records, due to DOMAIN, ZONE, and ADMINDOMAIN templating
1360 return if $defrec eq 'y';
1361
1362 if ($typemap{$$rectype} eq 'TXT' || $typemap{$$rectype} eq 'SPF') {
1363 # TXT records should preserve user entry in the string.
1364 # SPF records are a duplicate of TXT with a new record type value (99)
1365 $$host = lc($$host) if $revrec eq 'n'; # only lowercase $$host on live forward TXT; preserve TXT content
1366 $$val = lc($$val) if $revrec eq 'y'; # only lowercase $$val on live reverse TXT; preserve TXT content
1367 } else {
1368 # Non-TXT, live records, are fully case-insensitive
1369 $$host = lc($$host);
1370 $$val = lc($$val);
1371 } # $typemap{$$rectype} else
1372
1373} # _caseclean()
1374
1375
1376##
1377## Record data substitution subs
1378##
1379
1380# Replace ZONE in hostname, or create (most of) the actual proper zone name
1381sub _ZONE {
1382 my $zone = shift;
1383 my $string = shift;
1384 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
1385 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
1386
1387 my $prefix;
1388
1389 $string =~ s/,/./ if !$zone->{isv6};
1390 $string =~ s/,/::/ if $zone->{isv6};
1391
1392 # Subbing ZONE in the host. We need to properly ID the netblock range
1393 # The subbed text should have "network IP with trailing zeros stripped" for
1394 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
1395 # For blocks that do NOT line up on these boundaries, we take the most
1396 # significant octet or 16-bit chunk of the "broadcast" IP and append it
1397 # after a double-dash
1398 # ie:
1399 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1400 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1401 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1402 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1403 # Similar for v6
1404
1405 if (!$zone->{isv6}) { # IPv4
1406
1407 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1408 # a funky subnet that had host bits set.
1409 my $bc = $zone->broadcast->addr;
1410
1411 if ($zone->masklen > 24) {
1412 $bc =~ s/^\d+\.\d+\.\d+\.//;
1413 } elsif ($zone->masklen > 16) {
1414 $prefix =~ s/\.0$//;
1415 $bc =~ s/^\d+\.\d+\.//;
1416 } elsif ($zone->masklen > 8) {
1417 $bc =~ s/^\d+\.//;
1418 $prefix =~ s/\.0\.0$//;
1419 } else {
1420 $prefix =~ s/\.0\.0\.0$//;
1421 }
1422 if ($zone->masklen % 8) {
1423 $bc =~ s/(\.255)+$//;
1424 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1425 }
1426 if ($fr eq 'f') {
1427 $prefix =~ s/\.+/$sep/g;
1428 } else {
1429 $prefix = join($sep, reverse(split(/\./, $prefix)));
1430 }
1431
1432 } else { # IPv6
1433
1434 if ($fr eq 'f') {
1435
1436 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1437 # a funky subnet that had host bits set.
1438 my $bc = $zone->broadcast->addr;
1439 if (($zone->masklen % 16) != 0) {
1440 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1441 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1442 $prefix =~ s/:0$//;
1443 $bc =~ s/:ffff$//;
1444 }
1445 # Strip the leading 16-bit chunks off the front of the broadcast IP
1446 $bc =~ s/^([a-f0-9]+:)+//;
1447 # Append the remaining 16-bit chunk to the prefix after "--"
1448 $prefix .= "--$bc";
1449 } else {
1450 # Strip off :0 from the end until we reach the netblock length.
1451 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1452 $prefix =~ s/:0$//;
1453 }
1454 }
1455 # Actually deal with the separator
1456 $prefix =~ s/:/$sep/g;
1457
1458 } else { # $fr eq 'f'
1459
1460 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1461 # a funky subnet that had host bits set.
1462 my $bc = $zone->broadcast->full;
1463 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1464 $bc =~ s/://g;
1465 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1466 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1467 $prefix =~ s/0$//;
1468 $bc =~ s/f$//;
1469 }
1470 # Split and reverse the order of the nibbles in the network/broadcast IPs
1471 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1472 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1473 my @nbits = reverse split //, $prefix;
1474 my @bbits = reverse split //, $bc;
1475 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1476 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1477 # Glue it back together
1478 $prefix = join($sep, @nbits);
1479
1480 } # $fr ne 'f'
1481
1482 } # $zone->{isv6}
1483
1484 # Do the substitution, finally
1485 $string =~ s/ZONE/$prefix/;
1486 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1487 return $string;
1488} # done _ZONE()
1489
1490# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1491# given the .arpa zone name, return the CIDR netblock the zone is for.
1492# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1493# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1494# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1495sub _zone2cidr {
1496 my $zone = shift;
1497
1498 my $cidr;
1499 my $tmpcidr;
1500 my $warnmsg = '';
1501
1502 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1503 # v4 revzone, formal zone name type
1504 my $tmpzone = $zone;
1505 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name [$tmpzone]")
1506 if $tmpzone !~ m{^(?:\d+[/-])?[\d\.]+\.in-addr\.arpa\.?$};
1507 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1508
1509 # Snag the octet pieces
1510 my @octs = split /\./, $tmpzone;
1511
1512 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1513 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1514 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1515 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1516 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1517 );
1518
1519 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1520 # Need to take the size of the range to offset the basic octet-based mask length,
1521 # and make sure the first number in the range gets used as the network address for the block
1522 # Alternate form: The second number is actually the real netmask, not the end of the range.
1523 my $masklen = 0;
1524 if ($octs[0] =~ m{^((\d+)[/-](\d+))$}) { # take the range...
1525 if (24 < $3 && $3 < 31) {
1526 # we have a real netmask
1527 $masklen = -$maskmap{$3};
1528 } else {
1529 # we have a range. NB: only real CIDR ranges are supported
1530 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1531 }
1532 $octs[0] = $2; # set the base octet of the range...
1533 }
1534 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1535
1536# arguably we should only allow sub-octet range/mask in-addr.arpa
1537# specifications in the least significant octet, but the code is
1538# simpler if we deal with sub-octet delegations at any level.
1539
1540 # Now we find the "true" mask with the aid of the "base" calculated above
1541 if ($#octs == 0) {
1542 $masklen += 8;
1543 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1544 } elsif ($#octs == 1) {
1545 $masklen += 16;
1546 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1547 } elsif ($#octs == 2) {
1548 $masklen += 24;
1549 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1550 } else {
1551 $masklen += 32;
1552 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1553 }
1554
1555 } elsif ($zone =~ /\.ip6\.arpa\.?$/) {
1556 # v6 revzone, formal zone name type
1557 my $tmpzone = $zone;
1558##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1559 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name [$tmpzone]")
1560 if $tmpzone !~ /^[a-fA-F\d\.]+\.ip6\.arpa\.?$/;
1561 $tmpzone =~ s/\.ip6\.arpa\.?//;
1562 my @quads = reverse(split(/\./, $tmpzone));
1563 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1564 my $nc;
1565 foreach (@quads) {
1566 $tmpcidr .= $_;
1567 $tmpcidr .= ":" if ++$nc % 4 == 0 && $nc < $#quads;
1568 }
1569 my $nq = 1 if $nc % 4 != 0;
1570 my $mask = $nc * 4; # need to do this here because we probably increment it below
1571 while ($nc++ % 4 != 0) {
1572 $tmpcidr .= "0";
1573 }
1574 # polish it off with trailing ::/mask if this is a CIDR block instead of an IP
1575 $tmpcidr .= "::/$mask" if $mask != 128;
1576 }
1577
1578 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1579 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1580 unless $cidr = NetAddr::IP->new($tmpcidr);
1581
1582 if ($warnmsg) {
1583 $errstr = $warnmsg;
1584 return ('WARN', $cidr);
1585 }
1586 return ('OK', $cidr);
1587##fixme: use wantarray() to decide what to return?
1588} # done _zone2cidr()
1589
1590# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1591# really have a sane way to handle this type of expansion at the moment
1592# due to the size of the address space.
1593# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1594sub _template4_expand {
1595 my $tmpl = shift;
1596 my $ip = shift;
1597
1598 my @ipparts = split /\./, $ip;
1599 my @iphex;
1600 my @ippad;
1601 for (@ipparts) {
1602 push @iphex, sprintf("%x", $_);
1603 push @ippad, sprintf("%0.3u", $_);
1604 }
1605
1606 # IP substitutions in template records:
1607 #major patterns:
1608 #dashed IP, forward and reverse
1609 #underscoreed IP, forward and reverse
1610 #dotted IP, forward and reverse (even if forward is... dumb)
1611 # -> %r for reverse, %i for forward, leading -, _, or . to indicate separator, defaults to -
1612 # %r or %-r => %4d-%3d-%2d-%1d
1613 # %_r => %4d_%3d_%2d_%1d
1614 # %.r => %4d.%3d.%2d.%1d
1615 # %i or %-i => %1d-%2d-%3d-%4d
1616 # %_i => %1d_%2d_%3d_%4d
1617 # %.i => %1d.%2d.%3d.%4d
1618 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1619 $$tmpl =~ s/\%([-._])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1620 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1621 $$tmpl =~ s/\%([-._])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1622
1623 #hex-coded IP
1624 # %h
1625 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1626
1627 #IP as decimal-coded 32-bit value
1628 # %d
1629 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1630 $$tmpl =~ s/\%d/$iptmp/g;
1631
1632 #minor patterns (per-octet)
1633 # %[1234][dh0]
1634 #octet
1635 #hex-coded octet
1636 #0-padded octet
1637 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1638 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1639 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1640} # _template4_expand()
1641
1642# Broad syntactic check on the hostname. Checks for valid characters, correctly-expandable template patterns.
1643# Takes the hostname, type, and live/default and forward/reverse flags
1644# Returns true/false, sets errstr on failures
1645sub _check_hostname_form {
1646 my ($hname,$rectype,$defrec,$revrec) = @_;
1647
1648 if ($hname =~ /\%/ && ($rectype == 65282 || $rectype == 65283) ) {
1649 my $tmphost = $hname;
1650 # we don't actually need to test with the real IP passed; that saves a bit of fiddling.
1651 _template4_expand(\$tmphost, '10.10.10.10');
1652 if ($tmphost =~ /\%/ || lc($tmphost) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+)$/) {
1653 $errstr = "Invalid template $hname";
1654 return;
1655 }
1656 } elsif ($rectype == $reverse_typemap{CNAME} && $revrec eq 'y') {
1657 # Allow / in reverse CNAME hostnames for sub-/24 delegation
1658 if (lc($hname) !~ m|^[0-9a-z_./-]+$|) {
1659 # error message is deliberately restrictive; special cases are SPECIAL and not for general use
1660 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1661 return;
1662 }
1663 } elsif ($revrec eq 'y') {
1664 # Reverse zones don't support @ in hostnames
1665 if (lc($hname) !~ /^(?:\*\.)?[0-9a-z_.-]+$/) {
1666 # error message is deliberately restrictive; special cases are SPECIAL and not for general use
1667 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1668 return;
1669 }
1670 } else {
1671 if (lc($hname) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+|@)$/) {
1672 # Don't mention @, because it would be far too wordy to explain the nuance of @
1673 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1674 return;
1675 }
1676 }
1677 return 1;
1678} # _check_hostname_form()
1679
1680
1681##
1682## Initialization and cleanup subs
1683##
1684
1685## DNSDB::__cfgload()
1686# Private sub to parse a config file and load it into %config
1687# Takes a filename and a hashref to put the parsed entries in
1688sub __cfgload {
1689 $errstr = '';
1690 my $cfgfile = shift;
1691 my $cfg = shift;
1692
1693 if (open CFG, "<$cfgfile") {
1694 while (<CFG>) {
1695 chomp;
1696 s/^\s*//;
1697 next if /^#/;
1698 next if /^$/;
1699# hmm. more complex bits in this file might require [heading] headers, maybe?
1700# $mode = $1 if /^\[(a-z)+]/;
1701 # DB connect info
1702 $cfg->{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1703 $cfg->{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1704 $cfg->{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1705 $cfg->{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1706 # Mail settings
1707 $cfg->{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1708 $cfg->{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1709 $cfg->{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1710 $cfg->{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1711 $cfg->{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1712 $cfg->{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1713 # session - note this is fed directly to CGI::Session
1714 $cfg->{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1715 $cfg->{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1716 # misc
1717 $cfg->{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1718 $cfg->{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1719 $cfg->{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1720 $cfg->{usecache} = $1 if m{^usecache\s*=\s*([a-z01]+)}i;
1721 $cfg->{force_refresh} = $1 if /^force_refresh\s*=\s*([a-z01]+)/i;
1722 $cfg->{lowercase} = $1 if /^lowercase\s*=\s*([a-z01]+)/i;
1723 $cfg->{showrev_arpa} = $1 if /^showrev_arpa\s*=\s*([a-z]+)/i;
1724 $cfg->{template_skip_0} = $1 if /^template_skip_0\s*=\s*([a-z01]+)/i;
1725 $cfg->{template_skip_255} = $1 if /^template_skip_255\s*=\s*([a-z01]+)/i;
1726# not supported in dns.cgi yet
1727# $cfg->{templatedir} = $1 if m{^templatedir\s*=\s*([a-z0-9/_.-]+)}i;
1728# $cfg->{templateoverride} = $1 if m{^templateoverride\s*=\s*([a-z0-9/_.-]+)}i;
1729 # RPC options
1730 $cfg->{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1731 $cfg->{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1732 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1733 my @ips = split /[,\s]+/, $tmp;
1734 my $rpcsys = shift @ips;
1735 push @{$cfg->{rpcacl}{$rpcsys}}, @ips;
1736 }
1737 }
1738 close CFG;
1739 } else {
1740 $errstr = "Couldn't load configuration file $cfgfile: $!";
1741 return;
1742 }
1743 return 1;
1744} # end __cfgload()
1745
1746
1747## DNSDB::connectDB()
1748# Creates connection to DNS database.
1749# Requires the database name, username, and password.
1750# Returns a handle to the db or undef on failure.
1751# Set up for a PostgreSQL db; could be any transactional DBMS with the
1752# right changes.
1753# Called by new(); not intended to be called publicly.
1754sub connectDB {
1755 $errstr = '';
1756 my $dbname = shift;
1757 my $user = shift;
1758 my $pass = shift;
1759 my $dbh;
1760 my $DSN = "DBI:Pg:dbname=$dbname";
1761
1762 my $host = shift;
1763 $DSN .= ";host=$host" if $host;
1764
1765# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1766# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1767 $dbh = DBI->connect($DSN, $user, $pass, {
1768 AutoCommit => 1,
1769 PrintError => 0
1770 });
1771 if (!$dbh) {
1772 $errstr = $DBI::errstr;
1773 return;
1774 }
1775#) if(!$dbh);
1776
1777 local $dbh->{RaiseError} = 1;
1778
1779 eval {
1780##fixme: initialize the DB if we can't find the table (since, by definition, there's
1781# nothing there if we can't select from it...)
1782 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1783 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1784# return (undef,$DBI::errstr) if $dbh->err;
1785
1786#if ($tblcount == 0) {
1787# # create tables one at a time, checking for each.
1788# return (undef, "check table misc missing");
1789#}
1790
1791# Return here if we can't select.
1792# This should retrieve the dbversion key.
1793 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1794 $sth->execute();
1795# return (undef,$DBI::errstr) if ($sth->err);
1796
1797##fixme: do stuff to the DB on version mismatch
1798# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1799# DB should be downward-compatible; column defaults should give sane (if possibly
1800# useless-and-needs-help) values in columns an older software stack doesn't know about.
1801
1802# See if the select returned anything (or null data). This should
1803# succeed if the select executed, but...
1804 $sth->fetchrow();
1805# return (undef,$DBI::errstr) if ($sth->err);
1806
1807 $sth->finish;
1808
1809 }; # wrapped DB checks
1810 if ($@) {
1811 $errstr = $@;
1812 return;
1813 }
1814
1815# If we get here, we should be OK.
1816 return $dbh;
1817} # end connectDB
1818
1819
1820## DNSDB::finish()
1821# Cleans up after database handles and so on.
1822# Requires a database handle
1823sub finish {
1824 my $self = shift;
1825 $self->{dbh}->disconnect;
1826} # end finish
1827
1828
1829## DNSDB::initGlobals()
1830# Initialize global variables
1831# NB: this does NOT include web-specific session variables!
1832sub initGlobals {
1833 my $self = shift;
1834 my $dbh = $self->{dbh};
1835
1836# load record types from database
1837 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1838 $sth->execute;
1839 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1840 $typemap{$recval} = $recname;
1841 $reverse_typemap{$recname} = $recval;
1842 # now we fill the record validation function hash
1843 if ($stdflag < 5) {
1844 my $fn = "_validate_$recval";
1845 $validators{$recval} = \&$fn;
1846 } else {
1847 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1848 $validators{$recval} = eval $fn;
1849 }
1850 }
1851} # end initGlobals
1852
1853
1854## DNSDB::initRPC()
1855# Takes a remote username and remote fullname.
1856# Sets up the RPC logging-pseudouser if needed.
1857# Sets the %userdata hash for logging.
1858# Returns undef on failure
1859sub initRPC {
1860 my $self = shift;
1861 my $dbh = $self->{dbh};
1862 my %args = @_;
1863
1864 return if !$args{username};
1865 return if !$args{fullname};
1866
1867 $args{username} = "$args{username}/$args{rpcsys}";
1868
1869 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1870 " FROM users WHERE username=?", undef, ($args{username}) );
1871 if (!$tmpuser) {
1872 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1873 ($args{username}, $args{fullname}) );
1874 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1875 " FROM users WHERE username=?", undef, ($args{username}) );
1876 }
1877 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
1878 $self->{loguserid} = $tmpuser->{userid};
1879 $self->{logusername} = $tmpuser->{username};
1880 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
1881 return 1 if $tmpuser;
1882} # end initRPC()
1883
1884
1885## DNSDB::login()
1886# Takes a database handle, username and password
1887# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1888# password matches the one on file, and account is not disabled
1889# Returns undef otherwise
1890sub login {
1891 my $self = shift;
1892 my $dbh = $self->{dbh};
1893 my $user = shift;
1894 my $pass = shift;
1895
1896 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1897 " FROM users WHERE username=?",
1898 undef, ($user) );
1899 return if !$userinfo;
1900 return if !$userinfo->{status};
1901
1902 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1903 # native passwords (crypt-md5)
1904 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1905 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1906 # VegaDNS import (hex-coded MD5)
1907 return if $userinfo->{password} ne md5_hex($pass);
1908 } else {
1909 # plaintext (convenient now and then)
1910 return if $userinfo->{password} ne $pass;
1911 }
1912
1913 return $userinfo;
1914} # end login()
1915
1916
1917## DNSDB::initActionLog()
1918# Set up action logging. Takes a database handle and user ID
1919# Sets some internal globals and Does The Right Thing to set up a logging channel.
1920# This sets up _log() to spew out log entries to the defined channel without worrying
1921# about having to open a file or a syslog channel
1922##fixme Need to call _initActionLog_blah() for various logging channels, configured
1923# via dnsdb.conf, in $self->{log_channel} or something
1924# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1925sub initActionLog {
1926 my $self = shift;
1927 my $dbh = $self->{dbh};
1928 my $uid = shift;
1929
1930 return if !$uid;
1931
1932 # snag user info for logging. there's got to be a way to not have to pass this back
1933 # and forth from a caller, but web usage means no persistence we can rely on from
1934 # the server side.
1935 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1936 " FROM users WHERE user_id=?", undef, ($uid));
1937##fixme: errors are unpossible!
1938
1939 $self->{logusername} = $username;
1940 $self->{loguserid} = $uid;
1941 $self->{logfullname} = $fullname;
1942
1943 # convert to real check once we have other logging channels
1944 # if ($self->{log_channel} eq 'sql') {
1945 # Open Log, Sez Me!
1946 # }
1947
1948} # end initActionLog
1949
1950
1951## DNSDB::getPermissions()
1952# Get permissions from DB
1953# Requires DB handle, group or user flag, ID, and hashref.
1954sub getPermissions {
1955 my $self = shift;
1956 my $dbh = $self->{dbh};
1957
1958 my $type = shift;
1959 my $id = shift;
1960 my $hash = shift;
1961
1962 my $sql = qq(
1963 SELECT
1964 p.admin,p.self_edit,
1965 p.group_create,p.group_edit,p.group_delete,
1966 p.user_create,p.user_edit,p.user_delete,
1967 p.domain_create,p.domain_edit,p.domain_delete,
1968 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1969 p.location_create,p.location_edit,p.location_delete,p.location_view
1970 FROM permissions p
1971 );
1972 if ($type eq 'group') {
1973 $sql .= qq(
1974 JOIN groups g ON g.permission_id=p.permission_id
1975 WHERE g.group_id=?
1976 );
1977 } else {
1978 $sql .= qq(
1979 JOIN users u ON u.permission_id=p.permission_id
1980 WHERE u.user_id=?
1981 );
1982 }
1983
1984 my $sth = $dbh->prepare($sql);
1985
1986##fixme? we don't trap other plain SELECT errors
1987 $sth->execute($id);
1988
1989# my $permref = $sth->fetchrow_hashref;
1990# return $permref;
1991# $hash = $permref;
1992# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1993 ($hash->{admin},$hash->{self_edit},
1994 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1995 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1996 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1997 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1998 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1999 ) = $sth->fetchrow_array;
2000
2001} # end getPermissions()
2002
2003
2004## DNSDB::changePermissions()
2005# Update an ACL entry
2006# Takes a db handle, type, owner-id, and hashref for the changed permissions.
2007sub changePermissions {
2008 my $self = shift;
2009 my $dbh = $self->{dbh};
2010 my $type = shift;
2011 my $id = shift;
2012 my $newperms = shift;
2013 my $inherit = shift || 0;
2014
2015 my $resultmsg = '';
2016
2017 # see if we're switching from inherited to custom. for bonus points,
2018 # snag the permid and parent permid anyway, since we'll need the permid
2019 # to set/alter custom perms, and both if we're switching from custom to
2020 # inherited.
2021 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
2022 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
2023 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
2024 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
2025 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
2026 $sth->execute($id);
2027
2028 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
2029
2030# hack phtoui
2031# group id 1 is "special" in that it's it's own parent (err... possibly.)
2032# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
2033 $wasinherited = 0 if ($type eq 'group' && $id == 1);
2034
2035 local $dbh->{AutoCommit} = 0;
2036 local $dbh->{RaiseError} = 1;
2037
2038 # Wrap all the SQL in a transaction
2039 eval {
2040 if ($inherit) {
2041
2042 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
2043 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
2044 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
2045
2046 } else {
2047
2048 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
2049##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
2050# ... if'n'when we have groups with fully inherited permissions.
2051 # SQL is coo
2052 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
2053 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
2054 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
2055 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
2056 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
2057 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
2058 }
2059
2060 # and now set the permissions we were passed
2061 foreach (@permtypes) {
2062 if (defined ($newperms->{$_})) {
2063 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
2064 }
2065 }
2066
2067 } # (inherited->)? custom
2068
2069 if ($type eq 'user') {
2070 $resultmsg = "Updated permissions for user $name";
2071 } else {
2072 $resultmsg = "Updated default permissions for group $name";
2073 }
2074 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
2075 $dbh->commit;
2076 }; # end eval
2077 if ($@) {
2078 my $msg = $@;
2079 eval { $dbh->rollback; };
2080 return ('FAIL',"Error changing permissions: $msg");
2081 }
2082
2083 return ('OK',$resultmsg);
2084} # end changePermissions()
2085
2086
2087## DNSDB::comparePermissions()
2088# Compare two permission hashes
2089# Returns '>', '<', '=', '!'
2090sub comparePermissions {
2091 my $self = shift;
2092 my $p1 = shift;
2093 my $p2 = shift;
2094
2095 my $retval = '='; # assume equality until proven otherwise
2096
2097 no warnings "uninitialized";
2098
2099 foreach (@permtypes) {
2100 next if $p1->{$_} == $p2->{$_}; # equal is good
2101 if ($p1->{$_} && !$p2->{$_}) {
2102 if ($retval eq '<') { # if we've already found an unequal pair where
2103 $retval = '!'; # $p2 has more access, and we now find a pair
2104 last; # where $p1 has more access, the overall access
2105 } # is neither greater or lesser, it's unequal.
2106 $retval = '>';
2107 }
2108 if (!$p1->{$_} && $p2->{$_}) {
2109 if ($retval eq '>') { # if we've already found an unequal pair where
2110 $retval = '!'; # $p1 has more access, and we now find a pair
2111 last; # where $p2 has more access, the overall access
2112 } # is neither greater or lesser, it's unequal.
2113 $retval = '<';
2114 }
2115 }
2116 return $retval;
2117} # end comparePermissions()
2118
2119
2120## DNSDB::changeGroup()
2121# Change group ID of an entity
2122# Takes a database handle, entity type, entity ID, and new group ID
2123sub changeGroup {
2124 my $self = shift;
2125 my $dbh = $self->{dbh};
2126 my $type = shift;
2127 my $id = shift;
2128 my $newgrp = shift;
2129
2130##fixme: fail on not enough args
2131 #return ('FAIL', "Missing
2132
2133 return ('FAIL', "Can't change the group of a $type")
2134 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
2135
2136 # Collect some names for logging and messages
2137 my $entname;
2138 if ($type eq 'domain') {
2139 $entname = $self->domainName($id);
2140 } elsif ($type eq 'revzone') {
2141 $entname = $self->revName($id);
2142 } elsif ($type eq 'user') {
2143 $entname = $self->userFullName($id, '%u');
2144 } elsif ($type eq 'group') {
2145 $entname = $self->groupName($id);
2146 }
2147
2148 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
2149 undef, ($id));
2150 my $oldgname = $self->groupName($oldgid);
2151 my $newgname = $self->groupName($newgrp);
2152
2153 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
2154
2155 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
2156
2157 # Allow transactions, and raise an exception on errors so we can catch it later.
2158 # Use local to make sure these get "reset" properly on exiting this block
2159 local $dbh->{AutoCommit} = 0;
2160 local $dbh->{RaiseError} = 1;
2161
2162 eval {
2163 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
2164 # Log the change in both the old and new groups
2165 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
2166 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
2167 $dbh->commit;
2168 };
2169 if ($@) {
2170 my $msg = $@;
2171 eval { $dbh->rollback; };
2172 if ($self->{log_failures}) {
2173 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
2174 $dbh->commit; # since we enabled transactions earlier
2175 }
2176 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
2177 }
2178
2179 return ('OK',"Moved $type $entname from $oldgname to $newgname");
2180} # end changeGroup()
2181
2182
2183##
2184## Processing subs
2185##
2186
2187## DNSDB::addDomain()
2188# Add a domain
2189# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
2190# and user info hash (for logging).
2191# Returns a status code and message
2192sub addDomain {
2193 $errstr = '';
2194 my $self = shift;
2195 my $dbh = $self->{dbh};
2196 my $domain = shift;
2197 return ('FAIL',"Domain must not be blank\n") if !$domain;
2198 my $group = shift;
2199 return ('FAIL',"Group must be specified\n") if !defined($group);
2200 my $state = shift;
2201 return ('FAIL',"Domain status must be specified\n") if !defined($state);
2202 my $defloc = shift || '';
2203
2204 $state = 1 if $state =~ /^active$/;
2205 $state = 1 if $state =~ /^on$/;
2206 $state = 0 if $state =~ /^inactive$/;
2207 $state = 0 if $state =~ /^off$/;
2208
2209 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
2210
2211 $domain = lc($domain) if $self->{lowercase};
2212
2213 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
2214
2215 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
2216 my $dom_id;
2217
2218# quick check to start to see if we've already got one
2219 $sth->execute($domain);
2220 ($dom_id) = $sth->fetchrow_array;
2221
2222 return ('FAIL', "Domain already exists") if $dom_id;
2223
2224 # Allow transactions, and raise an exception on errors so we can catch it later.
2225 # Use local to make sure these get "reset" properly on exiting this block
2226 local $dbh->{AutoCommit} = 0;
2227 local $dbh->{RaiseError} = 1;
2228
2229 # Wrap all the SQL in a transaction
2230 eval {
2231 # insert the domain...
2232 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2233 ($domain, $group, $state, $defloc));
2234
2235 # get the ID...
2236 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2237 undef, ($domain));
2238
2239 $self->_log(domain_id => $dom_id, group_id => $group,
2240 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
2241
2242 # ... and now we construct the standard records from the default set. NB: group should be variable.
2243 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2244 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl,location)".
2245 " VALUES ($dom_id,?,?,?,?,?,?,?,?)");
2246 $sth->execute($group);
2247 while (my ($host, $type, $val, $dist, $weight, $port, $ttl) = $sth->fetchrow_array()) {
2248 $host =~ s/DOMAIN/$domain/g;
2249 $val =~ s/DOMAIN/$domain/g;
2250 _caseclean(\$type, \$host, \$val, 'n', 'n') if $self->{lowercase};
2251 $sth_in->execute($host, $type, $val, $dist, $weight, $port, $ttl, $defloc);
2252 if ($typemap{$type} eq 'SOA') {
2253 my @tmp1 = split /:/, $host;
2254 my @tmp2 = split /:/, $val;
2255 $self->_log(domain_id => $dom_id, group_id => $group,
2256 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2257 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2258 } else {
2259 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
2260 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
2261 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
2262 $self->_log(domain_id => $dom_id, group_id => $group,
2263 entry => $logentry." $val', TTL $ttl");
2264 }
2265 }
2266
2267 # once we get here, we should have suceeded.
2268 $dbh->commit;
2269 }; # end eval
2270
2271 if ($@) {
2272 my $msg = $@;
2273 eval { $dbh->rollback; };
2274 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
2275 if $self->{log_failures};
2276 $dbh->commit; # since we enabled transactions earlier
2277 return ('FAIL',$msg);
2278 } else {
2279 return ('OK',$dom_id);
2280 }
2281} # end addDomain
2282
2283
2284## DNSDB::delZone()
2285# Delete a forward or reverse zone.
2286# Takes a database handle, zone ID, and forward/reverse flag.
2287# for now, just delete the records, then the domain.
2288# later we may want to archive it in some way instead (status code 2, for example?)
2289sub delZone {
2290 my $self = shift;
2291 my $dbh = $self->{dbh};
2292 my $zoneid = shift;
2293 my $revrec = shift;
2294
2295 # Allow transactions, and raise an exception on errors so we can catch it later.
2296 # Use local to make sure these get "reset" properly on exiting this block
2297 local $dbh->{AutoCommit} = 0;
2298 local $dbh->{RaiseError} = 1;
2299
2300 my $msg = '';
2301 my $failmsg = '';
2302 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
2303
2304 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
2305
2306 # Set this up here since we may use if if $self->{log_failures} is enabled
2307 my %loghash;
2308 $loghash{domain_id} = $zoneid if $revrec eq 'n';
2309 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
2310 $loghash{group_id} = $self->parentID(
2311 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
2312
2313 # Wrap all the SQL in a transaction
2314 eval {
2315 # Disentangle custom record types before removing the
2316 # ones that are only in the zone to be deleted
2317 if ($revrec eq 'n') {
2318 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2319 $failmsg = "Failure converting multizone types to single-zone";
2320 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2321 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2322 $sth->execute(65282, $zoneid, 65283);
2323 $sth->execute(65282, $zoneid, 65284);
2324 $failmsg = "Failure removing domain records";
2325 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2326 $failmsg = "Failure removing domain";
2327 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2328 } else {
2329 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2330 $failmsg = "Failure converting multizone types to single-zone";
2331 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2332 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2333# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2334# $sth->execute(65286?, $zoneid, 65283);
2335# $sth->execute(65286?, $zoneid, 65284);
2336 $failmsg = "Failure removing reverse records";
2337 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2338 $failmsg = "Failure removing reverse zone";
2339 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2340 }
2341
2342 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2343 $loghash{entry} = $msg;
2344 $self->_log(%loghash);
2345
2346 # once we get here, we should have suceeded.
2347 $dbh->commit;
2348 }; # end eval
2349
2350 if ($@) {
2351 $msg = $@;
2352 eval { $dbh->rollback; };
2353 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2354 if ($self->{log_failures}) {
2355 $self->_log(%loghash);
2356 $dbh->commit; # since we enabled transactions earlier
2357 }
2358 return ('FAIL', $loghash{entry});
2359 } else {
2360 return ('OK', $msg);
2361 }
2362
2363} # end delZone()
2364
2365
2366## DNSDB::domainName()
2367# Return the domain name based on a domain ID
2368# Takes a database handle and the domain ID
2369# Returns the domain name or undef on failure
2370sub domainName {
2371 $errstr = '';
2372 my $self = shift;
2373 my $dbh = $self->{dbh};
2374 my $domid = shift;
2375 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2376 $errstr = $DBI::errstr if !$domname;
2377 return $domname if $domname;
2378} # end domainName()
2379
2380
2381## DNSDB::revName()
2382# Return the reverse zone name based on an rDNS ID
2383# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2384# instead of the formal .arpa zone name
2385# Returns the reverse zone name or undef on failure
2386sub revName {
2387 $errstr = '';
2388 my $self = shift;
2389 my $dbh = $self->{dbh};
2390 my $revid = shift;
2391 my $cidrflag = shift || 'n';
2392 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2393 $errstr = $DBI::errstr if !$revname;
2394 my $tmp = new NetAddr::IP $revname;
2395 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2396 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2397 return $revname if $revname;
2398} # end revName()
2399
2400
2401## DNSDB::domainID()
2402# Takes a database handle and domain name
2403# Returns the domain ID number
2404sub domainID {
2405 $errstr = '';
2406 my $self = shift;
2407 my $dbh = $self->{dbh};
2408 my $domain = shift;
2409 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2410 undef, ($domain) );
2411 if (!$domid) {
2412 if ($dbh->err) {
2413 $errstr = $DBI::errstr;
2414 } else {
2415 $errstr = "Domain $domain not present";
2416 }
2417 }
2418 return $domid if $domid;
2419} # end domainID()
2420
2421
2422## DNSDB::revID()
2423# Takes a database handle and reverse zone name
2424# Returns the rDNS ID number
2425sub revID {
2426 $errstr = '';
2427 my $self = shift;
2428 my $dbh = $self->{dbh};
2429 my $revzone = shift;
2430 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2431 if (!$revid) {
2432 if ($dbh->err) {
2433 $errstr = $DBI::errstr;
2434 } else {
2435 $errstr = "Reverse zone $revzone not present";
2436 }
2437 }
2438 return $revid if $revid;
2439} # end revID()
2440
2441
2442## DNSDB::addRDNS
2443# Adds a reverse DNS zone
2444# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2445# and boolean(ish) state (active/inactive)
2446# Returns a status code and message
2447sub addRDNS {
2448 my $self = shift;
2449 my $dbh = $self->{dbh};
2450 my $zone = shift;
2451
2452 # Autodetect formal .arpa zones
2453 if ($zone =~ /\.arpa\.?$/) {
2454 my $code;
2455 ($code,$zone) = _zone2cidr($zone);
2456 return ('FAIL', $zone) if $code eq 'FAIL';
2457 }
2458 $zone = NetAddr::IP->new($zone);
2459
2460 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2461 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2462 my $group = shift;
2463 my $state = shift;
2464 my $defloc = shift || '';
2465
2466 $state = 1 if $state =~ /^active$/;
2467 $state = 1 if $state =~ /^on$/;
2468 $state = 0 if $state =~ /^inactive$/;
2469 $state = 0 if $state =~ /^off$/;
2470
2471 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2472
2473# quick check to start to see if we've already got one
2474 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2475
2476 return ('FAIL', "Zone already exists") if $rdns_id;
2477
2478 # Allow transactions, and raise an exception on errors so we can catch it later.
2479 # Use local to make sure these get "reset" properly on exiting this block
2480 local $dbh->{AutoCommit} = 0;
2481 local $dbh->{RaiseError} = 1;
2482
2483 my $warnstr = '';
2484 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2485 # wrong, we should have a value to override this anyway.
2486
2487 # Wrap all the SQL in a transaction
2488 eval {
2489 # insert the zone...
2490 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2491 ($zone, $group, $state, $defloc) );
2492
2493 # get the ID...
2494 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2495
2496 $self->_log(rdns_id => $rdns_id, group_id => $group,
2497 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2498
2499 # ... and now we construct the standard records from the default set. NB: group should be variable.
2500 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2501 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2502 " VALUES ($rdns_id,?,?,?,?,?,?)");
2503 $sth->execute($group);
2504 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2505 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2506 if ($zone->{isv6}) {
2507 next if ($type == 65280 || $type == 65283);
2508 } else {
2509 next if ($type == 65281 || $type == 65284);
2510 }
2511
2512 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2513
2514 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2515 # On failure, tack a note on to a warning string and continue without adding this record.
2516 # While we're at it, we substitute $zone for ZONE in the value.
2517 if ($val eq 'ZONE') {
2518 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2519 next if $revpatt && ($type == 65282 || $type == 65283);
2520##fixme? do we care if we have multiple whole-zone templates?
2521 $val = $zone->network;
2522 } elsif ($val =~ /ZONE/) {
2523 my $tmpval = $val;
2524 $tmpval =~ s/ZONE//;
2525 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2526 # as either v4 or v6. May make this an off-by-default config flag
2527 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2528 if ($type == 12 || $type == 65282) {
2529 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2530 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2531 }
2532 my $addr;
2533 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2534 $val = $addr->addr;
2535 } else {
2536 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2537 next;
2538 }
2539 }
2540
2541 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2542 # NS records get this substitution on the value instead.
2543 $host = _ZONE($zone, $host) if $type != 2;
2544
2545 # Fill in the forward domain ID if we can find it, otherwise:
2546 # Coerce type down to PTR or PTR template if we can't
2547 my $domid = 0;
2548 if ($type >= 65280) {
2549 if (!($domid = $self->_hostparent($host))) {
2550 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2551 $type = $reverse_typemap{PTR};
2552 $domid = 0; # just to be explicit.
2553 }
2554 }
2555
2556 _caseclean(\$type, \$host, \$val, 'n', 'y') if $self->{lowercase};
2557
2558 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2559
2560 if ($typemap{$type} eq 'SOA') {
2561 my @tmp1 = split /:/, $host;
2562 my @tmp2 = split /:/, $val;
2563 $self->_log(rdns_id => $rdns_id, group_id => $group,
2564 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2565 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2566 $defttl = $tmp2[3];
2567 } else {
2568 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2569 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2570 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2571 }
2572 }
2573
2574 # Generate record based on provided pattern.
2575 if ($revpatt) {
2576 my $host;
2577 my $type = ($zone->{isv6} ? 65284 : 65283);
2578 my $val = $zone->network;
2579
2580 # Substitute $zone for ZONE in the hostname.
2581 $host = _ZONE($zone, $revpatt);
2582
2583 my $domid = 0;
2584 if (!($domid = $self->_hostparent($host))) {
2585 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2586 $type = 65282;
2587 $domid = 0; # just to be explicit.
2588 }
2589
2590 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2591 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2592 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2593 entry => $logentry." $val', TTL $defttl from pattern");
2594 }
2595
2596 # If there are warnings (presumably about default records skipped for cause) log them
2597 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2598 if $warnstr;
2599
2600 # once we get here, we should have suceeded.
2601 $dbh->commit;
2602 }; # end eval
2603
2604 if ($@) {
2605 my $msg = $@;
2606 eval { $dbh->rollback; };
2607 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2608 if $self->{log_failures};
2609 $dbh->commit; # since we enabled transactions earlier
2610 return ('FAIL',$msg);
2611 } else {
2612 my $retcode = 'OK';
2613 if ($warnstr) {
2614 $resultstr = $warnstr;
2615 $retcode = 'WARN';
2616 }
2617 return ($retcode, $rdns_id);
2618 }
2619
2620} # end addRDNS()
2621
2622
2623## DNSDB::getZoneCount
2624# Get count of zones in group or groups
2625# Takes a database handle and hash containing:
2626# - the "current" group
2627# - an array of "acceptable" groups
2628# - a flag for forward/reverse zones
2629# - Optionally accept a "starts with" and/or "contains" filter argument
2630# Returns an integer count of the resulting zone list.
2631sub getZoneCount {
2632 my $self = shift;
2633 my $dbh = $self->{dbh};
2634
2635 my %args = @_;
2636
2637 # Fail on bad curgroup argument. There's no sane fallback on this one.
2638 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2639 $errstr = "Bad or missing curgroup argument";
2640 return;
2641 }
2642 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2643 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2644 $errstr = "Bad childlist argument";
2645 return;
2646 }
2647
2648 my @filterargs;
2649 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2650 push @filterargs, "^$args{startwith}" if $args{startwith};
2651 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2652 push @filterargs, $args{filter} if $args{filter};
2653
2654 my $sql;
2655 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2656 if ($args{revrec} eq 'n') {
2657 $sql = "SELECT count(*) FROM domains".
2658 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2659 ($args{startwith} ? " AND domain ~* ?" : '').
2660 ($args{filter} ? " AND domain ~* ?" : '');
2661 } else {
2662 $sql = "SELECT count(*) FROM revzones".
2663 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2664 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2665# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2666 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2667 # we want to match both the formal and natural zone name
2668 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2669 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2670# } else {
2671# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2672# }
2673 }
2674 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2675 return $count;
2676} # end getZoneCount()
2677
2678
2679## DNSDB::getZoneList()
2680# Get a list of zones in the specified group(s)
2681# Takes the same arguments as getZoneCount() above
2682# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2683sub getZoneList {
2684 my $self = shift;
2685 my $dbh = $self->{dbh};
2686
2687 my %args = @_;
2688
2689 my @zonelist;
2690
2691 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2692 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2693
2694 # Fail on bad curgroup argument. There's no sane fallback on this one.
2695 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2696 $errstr = "Bad or missing curgroup argument";
2697 return;
2698 }
2699 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2700 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2701 $errstr = "Bad childlist argument";
2702 return;
2703 }
2704
2705 my @filterargs;
2706 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2707 push @filterargs, "^$args{startwith}" if $args{startwith};
2708 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2709 push @filterargs, $args{filter} if $args{filter};
2710
2711 my $sql;
2712 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2713 if ($args{revrec} eq 'n') {
2714 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2715 $sql = "SELECT domain_id AS zoneid,domain AS zone,status,groups.group_name AS group FROM domains".
2716 " INNER JOIN groups ON domains.group_id=groups.group_id".
2717 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2718 ($args{startwith} ? " AND domain ~* ?" : '').
2719 ($args{filter} ? " AND domain ~* ?" : '');
2720 } else {
2721##fixme: arguably startwith here is irrelevant. depends on the UI though.
2722 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2723 $sql = "SELECT rdns_id AS zoneid,revnet AS zone,status,groups.group_name AS group FROM revzones".
2724 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2725 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2726 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2727# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2728 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2729 # we want to match both the formal and natural zone name
2730 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2731 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2732# } else {
2733# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2734# }
2735 }
2736 # A common tail.
2737 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2738 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2739 " OFFSET ".$args{offset}*$self->{perpage});
2740
2741 my @working;
2742 my $zsth = $dbh->prepare($sql);
2743 $zsth->execute(@filterargs);
2744 while (my $zone = $zsth->fetchrow_hashref) {
2745 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2746 my $tmp = new NetAddr::IP $zone->{zone};
2747 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2748 }
2749 push @working, $zone;
2750 }
2751 return \@working;
2752} # end getZoneList()
2753
2754
2755## DNSDB::getZoneLocation()
2756# Retrieve the default location for a zone.
2757# Takes a database handle, forward/reverse flag, and zone ID
2758sub getZoneLocation {
2759 my $self = shift;
2760 my $dbh = $self->{dbh};
2761 my $revrec = shift;
2762 my $zoneid = shift;
2763
2764 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2765 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2766 undef, ($zoneid));
2767 return $loc;
2768} # end getZoneLocation()
2769
2770
2771## DNSDB::addGroup()
2772# Add a group
2773# Takes a database handle, group name, parent group, hashref for permissions,
2774# and optional template-vs-cloneme flag for the default records
2775# Returns a status code and message
2776sub addGroup {
2777 $errstr = '';
2778 my $self = shift;
2779 my $dbh = $self->{dbh};
2780 my $groupname = shift;
2781 my $pargroup = shift;
2782 my $permissions = shift;
2783
2784 # 0 indicates "custom", hardcoded.
2785 # Any other value clones that group's default records, if it exists.
2786 my $inherit = shift || 0;
2787##fixme: need a flag to indicate clone records or <?> ?
2788
2789 # Allow transactions, and raise an exception on errors so we can catch it later.
2790 # Use local to make sure these get "reset" properly on exiting this block
2791 local $dbh->{AutoCommit} = 0;
2792 local $dbh->{RaiseError} = 1;
2793
2794 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2795
2796 return ('FAIL', "Group already exists") if $group_id;
2797
2798 # Wrap all the SQL in a transaction
2799 eval {
2800 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2801
2802 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2803
2804 # We work through the whole set of permissions instead of specifying them so
2805 # that when we add a new permission, we don't have to change the code anywhere
2806 # that doesn't explicitly deal with that specific permission.
2807 my @permvals;
2808 foreach (@permtypes) {
2809 if (!defined ($permissions->{$_})) {
2810 push @permvals, 0;
2811 } else {
2812 push @permvals, $permissions->{$_};
2813 }
2814 }
2815 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2816 undef, ($groupid, @permvals) );
2817 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2818 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2819
2820 # Default records
2821 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2822 "VALUES ($groupid,?,?,?,?,?,?,?)");
2823 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2824 "VALUES ($groupid,?,?,?,?)");
2825 if ($inherit) {
2826 # Duplicate records from parent. Actually relying on inherited records feels
2827 # very fragile, and it would be problematic to roll over at a later time.
2828 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2829 $sth2->execute($pargroup);
2830 while (my @clonedata = $sth2->fetchrow_array) {
2831 $sthf->execute(@clonedata);
2832 }
2833 # And now the reverse records
2834 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2835 $sth2->execute($pargroup);
2836 while (my @clonedata = $sth2->fetchrow_array) {
2837 $sthr->execute(@clonedata);
2838 }
2839 } else {
2840##fixme: Hardcoding is Bad, mmmmkaaaay?
2841 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2842 # could load from a config file, but somewhere along the line we need hardcoded bits.
2843 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2844 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2845 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2846 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2847 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2848 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2849 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2850 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2851 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2852 }
2853
2854 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2855
2856 # once we get here, we should have suceeded.
2857 $dbh->commit;
2858 }; # end eval
2859
2860 if ($@) {
2861 my $msg = $@;
2862 eval { $dbh->rollback; };
2863 if ($self->{log_failures}) {
2864 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2865 $dbh->commit;
2866 }
2867 return ('FAIL',$msg);
2868 }
2869
2870 return ('OK','OK');
2871} # end addGroup()
2872
2873
2874## DNSDB::delGroup()
2875# Delete a group.
2876# Takes a group ID
2877# Returns a status code and message
2878sub delGroup {
2879 my $self = shift;
2880 my $dbh = $self->{dbh};
2881 my $groupid = shift;
2882
2883 # Allow transactions, and raise an exception on errors so we can catch it later.
2884 # Use local to make sure these get "reset" properly on exiting this block
2885 local $dbh->{AutoCommit} = 0;
2886 local $dbh->{RaiseError} = 1;
2887
2888##fixme: locate "knowable" error conditions and deal with them before the eval
2889# ... or inside, whatever.
2890# -> domains still exist in group
2891# -> ...
2892 my $failmsg = '';
2893 my $resultmsg = '';
2894
2895 # collect some pieces for logging and error messages
2896 my $groupname = $self->groupName($groupid);
2897 my $parid = $self->parentID(id => $groupid, type => 'group');
2898
2899 # Wrap all the SQL in a transaction
2900 eval {
2901 # Check for Things in the group
2902 $failmsg = "Can't remove group $groupname";
2903 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2904 die "$grpcnt groups still in group\n" if $grpcnt;
2905 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2906 die "$domcnt domains still in group\n" if $domcnt;
2907 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
2908 die "$revcnt reverse zones still in group\n" if $revcnt;
2909 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2910 die "$usercnt users still in group\n" if $usercnt;
2911
2912 $failmsg = "Failed to delete default records for $groupname";
2913 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2914 $failmsg = "Failed to delete default reverse records for $groupname";
2915 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2916 $failmsg = "Failed to remove group $groupname";
2917 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2918
2919 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
2920 $resultmsg = "Deleted group $groupname";
2921
2922 # once we get here, we should have suceeded.
2923 $dbh->commit;
2924 }; # end eval
2925
2926 if ($@) {
2927 my $msg = $@;
2928 eval { $dbh->rollback; };
2929 if ($self->{log_failures}) {
2930 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
2931 $dbh->commit; # since we enabled transactions earlier
2932 }
2933 return ('FAIL',"$failmsg: $msg");
2934 }
2935
2936 return ('OK',$resultmsg);
2937} # end delGroup()
2938
2939
2940## DNSDB::getChildren()
2941# Get a list of all groups whose parent^n is group <n>
2942# Takes a database handle, group ID, reference to an array to put the group IDs in,
2943# and an optional flag to return only immediate children or all children-of-children
2944# default to returning all children
2945# Calls itself
2946sub getChildren {
2947 $errstr = '';
2948 my $self = shift;
2949 my $dbh = $self->{dbh};
2950 my $rootgroup = shift;
2951 my $groupdest = shift;
2952 my $immed = shift || 'all';
2953
2954 # special break for default group; otherwise we get stuck.
2955 if ($rootgroup == 1) {
2956 # by definition, group 1 is the Root Of All Groups
2957 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2958 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2959 $sth->execute;
2960 while (my @this = $sth->fetchrow_array) {
2961 push @$groupdest, @this;
2962 }
2963 } else {
2964 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2965 $sth->execute($rootgroup);
2966 return if $sth->rows == 0;
2967 my @grouplist;
2968 while (my ($group) = $sth->fetchrow_array) {
2969 push @$groupdest, $group;
2970 $self->getChildren($group, $groupdest) if $immed eq 'all';
2971 }
2972 }
2973} # end getChildren()
2974
2975
2976## DNSDB::groupName()
2977# Return the group name based on a group ID
2978# Takes a database handle and the group ID
2979# Returns the group name or undef on failure
2980sub groupName {
2981 $errstr = '';
2982 my $self = shift;
2983 my $dbh = $self->{dbh};
2984 my $groupid = shift;
2985 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2986 $sth->execute($groupid);
2987 my ($groupname) = $sth->fetchrow_array();
2988 $errstr = $DBI::errstr if !$groupname;
2989 return $groupname if $groupname;
2990} # end groupName
2991
2992
2993## DNSDB::getGroupCount()
2994# Get count of subgroups in group or groups
2995# Takes a database handle and hash containing:
2996# - the "current" group
2997# - an array of "acceptable" groups
2998# - Optionally accept a "starts with" and/or "contains" filter argument
2999# Returns an integer count of the resulting group list.
3000sub getGroupCount {
3001 my $self = shift;
3002 my $dbh = $self->{dbh};
3003
3004 my %args = @_;
3005
3006 # Fail on bad curgroup argument. There's no sane fallback on this one.
3007 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3008 $errstr = "Bad or missing curgroup argument";
3009 return;
3010 }
3011 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3012 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3013 $errstr = "Bad childlist argument";
3014 return;
3015 }
3016
3017 my @filterargs;
3018 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3019 push @filterargs, "^$args{startwith}" if $args{startwith};
3020 push @filterargs, $args{filter} if $args{filter};
3021
3022 my $sql = "SELECT count(*) FROM groups ".
3023 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3024 ($args{startwith} ? " AND group_name ~* ?" : '').
3025 ($args{filter} ? " AND group_name ~* ?" : '');
3026 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3027 $errstr = $dbh->errstr if !$count;
3028 return $count;
3029} # end getGroupCount
3030
3031
3032## DNSDB::getGroupList()
3033# Get a list of sub^n-groups in the specified group(s)
3034# Takes the same arguments as getGroupCount() above
3035# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
3036sub getGroupList {
3037 my $self = shift;
3038 my $dbh = $self->{dbh};
3039
3040 my %args = @_;
3041
3042 # Fail on bad curgroup argument. There's no sane fallback on this one.
3043 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3044 $errstr = "Bad or missing curgroup argument";
3045 return;
3046 }
3047 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3048 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3049 $errstr = "Bad childlist argument";
3050 return;
3051 }
3052
3053 my @filterargs;
3054 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3055 push @filterargs, "^$args{startwith}" if $args{startwith};
3056 push @filterargs, $args{filter} if $args{filter};
3057
3058 # protection against bad or missing arguments
3059 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3060 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3061 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3062
3063 # munge sortby for columns in database
3064 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
3065 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
3066
3067 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
3068 FROM groups g
3069 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
3070 ).
3071 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3072 ($args{startwith} ? " AND g.group_name ~* ?" : '').
3073 ($args{filter} ? " AND g.group_name ~* ?" : '').
3074 " GROUP BY g.group_id, g.group_name, g2.group_name ".
3075 " ORDER BY $args{sortby} $args{sortorder} ".
3076 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3077 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3078 $errstr = $dbh->errstr if !$glist;
3079
3080 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
3081 # this means there's lots of crunching needed to trim the result set back down.
3082 # So instead we track the order of the groups, and push the counts into the
3083 # arrayref result separately.
3084##fixme: put this whole sub in a transaction? might be
3085# needed for accurate results on very busy systems.
3086##fixme: large group lists need prepared statements?
3087#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
3088#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
3089#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
3090 foreach (@{$glist}) {
3091 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
3092 $$_{nusers} = $ucnt;
3093 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
3094 $$_{ndomains} = $dcnt;
3095 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
3096 $$_{nrevzones} = $rcnt;
3097 }
3098
3099 return $glist;
3100} # end getGroupList
3101
3102
3103## DNSDB::groupID()
3104# Return the group ID based on the group name
3105# Takes a database handle and the group name
3106# Returns the group ID or undef on failure
3107sub groupID {
3108 $errstr = '';
3109 my $self = shift;
3110 my $dbh = $self->{dbh};
3111 my $group = shift;
3112 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
3113 $errstr = $DBI::errstr if !$grpid;
3114 return $grpid if $grpid;
3115} # end groupID()
3116
3117
3118## DNSDB::addUser()
3119# Add a user.
3120# Takes a DB handle, username, group ID, password, state (active/inactive).
3121# Optionally accepts:
3122# user type (user/admin) - defaults to user
3123# permissions string - defaults to inherit from group
3124# three valid forms:
3125# i - Inherit permissions
3126# c:<user_id> - Clone permissions from <user_id>
3127# C:<permission list> - Set these specific permissions
3128# first name - defaults to username
3129# last name - defaults to blank
3130# phone - defaults to blank (could put other data within column def)
3131# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
3132sub addUser {
3133 $errstr = '';
3134 my $self = shift;
3135 my $dbh = $self->{dbh};
3136 my $username = shift;
3137 my $group = shift;
3138 my $pass = shift;
3139 my $state = shift;
3140
3141 return ('FAIL', "Missing one or more required entries") if !defined($state);
3142 return ('FAIL', "Username must not be blank") if !$username;
3143
3144 # Munge in some alternate state values
3145 $state = 1 if $state =~ /^active$/;
3146 $state = 1 if $state =~ /^on$/;
3147 $state = 0 if $state =~ /^inactive$/;
3148 $state = 0 if $state =~ /^off$/;
3149
3150 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
3151
3152 my $permstring = shift || 'i'; # default is to inhert permissions from group
3153
3154 my $fname = shift || $username;
3155 my $lname = shift || '';
3156 my $phone = shift || ''; # not going format-check
3157
3158 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
3159 my $user_id;
3160
3161# quick check to start to see if we've already got one
3162 $sth->execute($username);
3163 ($user_id) = $sth->fetchrow_array;
3164
3165 return ('FAIL', "User already exists") if $user_id;
3166
3167 # Allow transactions, and raise an exception on errors so we can catch it later.
3168 # Use local to make sure these get "reset" properly on exiting this block
3169 local $dbh->{AutoCommit} = 0;
3170 local $dbh->{RaiseError} = 1;
3171
3172 # Wrap all the SQL in a transaction
3173 eval {
3174 # insert the user... note we set inherited perms by default since
3175 # it's simple and cleans up some other bits of state
3176##fixme: need better handling of case of inherited or missing (!!) permissions entries
3177 my $sth = $dbh->prepare("INSERT INTO users ".
3178 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
3179 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
3180 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
3181
3182 # get the ID...
3183 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
3184
3185# Permissions! Gotta set'em all!
3186 die "Invalid permission string $permstring\n"
3187 if $permstring !~ /^(?:
3188 i # inherit
3189 |c:\d+ # clone
3190 # custom. no, the leading , is not a typo
3191 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
3192 )$/x;
3193# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
3194 if ($permstring ne 'i') {
3195 # for cloned or custom permissions, we have to create a new permissions entry.
3196 my $clonesrc = $group;
3197 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
3198 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
3199 "SELECT $permlist,? FROM permissions WHERE permission_id=".
3200 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
3201 undef, ($user_id,$clonesrc) );
3202 $dbh->do("UPDATE users SET permission_id=".
3203 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
3204 "WHERE user_id=?", undef, ($user_id, $user_id) );
3205 }
3206 if ($permstring =~ /^C:/) {
3207 # finally for custom permissions, we set the passed-in permissions (and unset
3208 # any that might have been brought in by the clone operation above)
3209 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
3210 undef, ($user_id) );
3211 foreach (@permtypes) {
3212 if ($permstring =~ /,$_/) {
3213 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
3214 } else {
3215 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
3216 }
3217 }
3218 }
3219
3220 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
3221
3222##fixme: add another table to hold name/email for log table?
3223
3224 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
3225 # once we get here, we should have suceeded.
3226 $dbh->commit;
3227 }; # end eval
3228
3229 if ($@) {
3230 my $msg = $@;
3231 eval { $dbh->rollback; };
3232 if ($self->{log_failures}) {
3233 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
3234 $dbh->commit; # since we enabled transactions earlier
3235 }
3236 return ('FAIL',"Error adding user $username: $msg");
3237 }
3238
3239 return ('OK',"User $username ($fname $lname) added");
3240} # end addUser
3241
3242
3243## DNSDB::getUserCount()
3244# Get count of users in group
3245# Takes a database handle and hash containing at least the current group, and optionally:
3246# - a reference list of secondary groups
3247# - a filter string
3248# - a "Starts with" string
3249sub getUserCount {
3250 my $self = shift;
3251 my $dbh = $self->{dbh};
3252
3253 my %args = @_;
3254
3255 # Fail on bad curgroup argument. There's no sane fallback on this one.
3256 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3257 $errstr = "Bad or missing curgroup argument";
3258 return;
3259 }
3260 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3261 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3262 $errstr = "Bad childlist argument";
3263 return;
3264 }
3265
3266 my @filterargs;
3267 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3268 push @filterargs, "^$args{startwith}" if $args{startwith};
3269 push @filterargs, $args{filter} if $args{filter};
3270
3271 my $sql = "SELECT count(*) FROM users ".
3272 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3273 ($args{startwith} ? " AND username ~* ?" : '').
3274 ($args{filter} ? " AND username ~* ?" : '');
3275 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3276 $errstr = $dbh->errstr if !$count;
3277 return $count;
3278} # end getUserCount()
3279
3280
3281## DNSDB::getUserList()
3282# Get list of users
3283# Takes the same arguments as getUserCount() above, plus optional:
3284# - sort field
3285# - sort order
3286# - offset/return-all-everything flag (defaults to $perpage records)
3287sub getUserList {
3288 my $self = shift;
3289 my $dbh = $self->{dbh};
3290
3291 my %args = @_;
3292
3293 # Fail on bad curgroup argument. There's no sane fallback on this one.
3294 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3295 $errstr = "Bad or missing curgroup argument";
3296 return;
3297 }
3298 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3299 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3300 $errstr = "Bad childlist argument";
3301 return;
3302 }
3303
3304 my @filterargs;
3305 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3306 push @filterargs, "^$args{startwith}" if $args{startwith};
3307 push @filterargs, $args{filter} if $args{filter};
3308
3309 # better to request sorts on "simple" names, but it means we need to map it to real columns
3310 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3311 fname => 'fname');
3312 $args{sortby} = $sortmap{$args{sortby}};
3313
3314 # protection against bad or missing arguments
3315 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3316 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3317 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3318
3319 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3320 "FROM users u ".
3321 "INNER JOIN groups g ON u.group_id=g.group_id ".
3322 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3323 ($args{startwith} ? " AND u.username ~* ?" : '').
3324 ($args{filter} ? " AND u.username ~* ?" : '').
3325 " AND NOT u.type = 'R' ".
3326 " ORDER BY $args{sortby} $args{sortorder} ".
3327 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3328 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3329 $errstr = $dbh->errstr if !$ulist;
3330 return $ulist;
3331} # end getUserList()
3332
3333
3334## DNSDB::getUserDropdown()
3335# Get a list of usernames for use in a dropdown menu.
3336# Takes a database handle, current group, and optional "tag this as selected" flag.
3337# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3338sub getUserDropdown {
3339 my $self = shift;
3340 my $dbh = $self->{dbh};
3341 my $grp = shift;
3342 my $sel = shift || 0;
3343
3344 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3345 $sth->execute($grp);
3346
3347 my @userlist;
3348 while (my ($username,$uid) = $sth->fetchrow_array) {
3349 my %row = (
3350 username => $username,
3351 uid => $uid,
3352 selected => ($sel == $uid ? 1 : 0)
3353 );
3354 push @userlist, \%row;
3355 }
3356 return \@userlist;
3357} # end getUserDropdown()
3358
3359
3360## DNSDB:: updateUser()
3361# Update general data about user
3362sub updateUser {
3363 my $self = shift;
3364 my $dbh = $self->{dbh};
3365
3366##fixme: tweak calling convention so that we can update any given bit of data
3367 my $uid = shift;
3368 my $username = shift;
3369 my $group = shift;
3370 my $pass = shift;
3371 my $state = shift;
3372 my $type = shift || 'u';
3373 my $fname = shift || $username;
3374 my $lname = shift || '';
3375 my $phone = shift || ''; # not going format-check
3376
3377 my $resultmsg = '';
3378
3379 # Munge in some alternate state values
3380 $state = 1 if $state =~ /^active$/;
3381 $state = 1 if $state =~ /^on$/;
3382 $state = 0 if $state =~ /^inactive$/;
3383 $state = 0 if $state =~ /^off$/;
3384
3385 # Allow transactions, and raise an exception on errors so we can catch it later.
3386 # Use local to make sure these get "reset" properly on exiting this block
3387 local $dbh->{AutoCommit} = 0;
3388 local $dbh->{RaiseError} = 1;
3389
3390 my $sth;
3391
3392 # Password can be left blank; if so we assume there's one on file.
3393 # Actual blank passwords are bad, mm'kay?
3394 if (!$pass) {
3395 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3396 } else {
3397 $pass = unix_md5_crypt($pass);
3398 }
3399
3400 eval {
3401 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3402 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3403 $resultmsg = "Updated user info for $username ($fname $lname)";
3404 $self->_log(group_id => $group, entry => $resultmsg);
3405 $dbh->commit;
3406 };
3407 if ($@) {
3408 my $msg = $@;
3409 eval { $dbh->rollback; };
3410 if ($self->{log_failures}) {
3411 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3412 $dbh->commit; # since we enabled transactions earlier
3413 }
3414 return ('FAIL',"Error updating user $username: $msg");
3415 }
3416
3417 return ('OK',$resultmsg);
3418} # end updateUser()
3419
3420
3421## DNSDB::delUser()
3422# Delete a user.
3423# Takes a database handle and user ID
3424# Returns a success/failure code and matching message
3425sub delUser {
3426 my $self = shift;
3427 my $dbh = $self->{dbh};
3428 my $userid = shift;
3429
3430 return ('FAIL',"Bad userid") if !defined($userid);
3431
3432 my $userdata = $self->getUserData($userid);
3433
3434 # Allow transactions, and raise an exception on errors so we can catch it later.
3435 # Use local to make sure these get "reset" properly on exiting this block
3436 local $dbh->{AutoCommit} = 0;
3437 local $dbh->{RaiseError} = 1;
3438
3439 eval {
3440 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3441 $self->_log(group_id => $userdata->{group_id},
3442 entry => "Deleted user ID $userid/".$userdata->{username}.
3443 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3444 $dbh->commit;
3445 };
3446 if ($@) {
3447 my $msg = $@;
3448 eval { $dbh->rollback; };
3449 if ($self->{log_failures}) {
3450 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3451 "$userid/".$userdata->{username}.": $msg");
3452 $dbh->commit;
3453 }
3454 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3455 }
3456
3457 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3458} # end delUser
3459
3460
3461## DNSDB::userFullName()
3462# Return a pretty string!
3463# Takes a user_id and optional printf-ish string to indicate which pieces where:
3464# %u for the username
3465# %f for the first name
3466# %l for the last name
3467# All other text in the passed string will be left as-is.
3468##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3469sub userFullName {
3470 $errstr = '';
3471 my $self = shift;
3472 my $dbh = $self->{dbh};
3473 my $userid = shift;
3474 my $fullformat = shift || '%f %l (%u)';
3475 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3476 $sth->execute($userid);
3477 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3478 $errstr = $DBI::errstr if !$uname;
3479
3480 $fullformat =~ s/\%u/$uname/g;
3481 $fullformat =~ s/\%f/$fname/g;
3482 $fullformat =~ s/\%l/$lname/g;
3483
3484 return $fullformat;
3485} # end userFullName
3486
3487
3488## DNSDB::userStatus()
3489# Sets and/or returns a user's status
3490# Takes a database handle, user ID and optionally a status argument
3491# Returns undef on errors.
3492sub userStatus {
3493 my $self = shift;
3494 my $dbh = $self->{dbh};
3495 my $id = shift;
3496 my $newstatus = shift || 'mu';
3497
3498 return undef if $id !~ /^\d+$/;
3499
3500 my $userdata = $self->getUserData($id);
3501
3502 # Allow transactions, and raise an exception on errors so we can catch it later.
3503 # Use local to make sure these get "reset" properly on exiting this block
3504 local $dbh->{AutoCommit} = 0;
3505 local $dbh->{RaiseError} = 1;
3506
3507 if ($newstatus ne 'mu') {
3508 # ooo, fun! let's see what we were passed for status
3509 eval {
3510 $newstatus = 0 if $newstatus eq 'useroff';
3511 $newstatus = 1 if $newstatus eq 'useron';
3512 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3513
3514 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3515 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3516
3517 my %loghash;
3518 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3519 $loghash{entry} = $resultstr;
3520 $self->_log(%loghash);
3521
3522 $dbh->commit;
3523 };
3524 if ($@) {
3525 my $msg = $@;
3526 eval { $dbh->rollback; };
3527 $resultstr = '';
3528 $errstr = $msg;
3529##fixme: failure logging?
3530 return;
3531 }
3532 }
3533
3534 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3535 return $status;
3536} # end userStatus()
3537
3538
3539## DNSDB::getUserData()
3540# Get misc user data for display
3541sub getUserData {
3542 my $self = shift;
3543 my $dbh = $self->{dbh};
3544 my $uid = shift;
3545
3546 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3547 "FROM users WHERE user_id=?");
3548 $sth->execute($uid);
3549 return $sth->fetchrow_hashref();
3550} # end getUserData()
3551
3552
3553## DNSDB::addLoc()
3554# Add a new location.
3555# Takes a database handle, group ID, short and long description, and a comma-separated
3556# list of IP addresses.
3557# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3558sub addLoc {
3559 my $self = shift;
3560 my $dbh = $self->{dbh};
3561 my $grp = shift;
3562 my $shdesc = shift;
3563 my $comments = shift;
3564 my $iplist = shift;
3565
3566 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3567 $comments = '' if !$comments;
3568 $iplist = '' if !$iplist;
3569
3570 my $loc;
3571
3572 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3573 # for now; 676 locations should satisfy all but the largest of the huge networks.
3574 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3575 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3576
3577# add just after "my $origloc = $loc;":
3578# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3579# # and wrap it around.
3580# # Yes, they skip a couple of possibles. No, I don't care.
3581# $loc = 'aA' if $loc eq 'zz';
3582# $loc = 'Aa' if $loc eq 'zZ';
3583# $loc = 'ZA' if $loc eq 'Zz';
3584# $loc = 'aa' if $loc eq 'ZZ';
3585
3586 # Allow transactions, and raise an exception on errors so we can catch it later.
3587 # Use local to make sure these get "reset" properly on exiting this block
3588 local $dbh->{AutoCommit} = 0;
3589 local $dbh->{RaiseError} = 1;
3590
3591##fixme: There is probably a far better way to do this. Sequential increments
3592# are marginally less stupid that pure random generation though, and the existence
3593# check makes sure we don't stomp on an imported one.
3594
3595 eval {
3596 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3597 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3598 ($loc) = ($loc =~ /^(..)/) if $loc;
3599 my $origloc = $loc;
3600 $loc = 'aa' if !$loc;
3601 # Make a change...
3602 $loc++;
3603 # ... and keep changing if it exists
3604 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3605 $loc++;
3606 ($loc) = ($loc =~ /^(..)/);
3607 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3608##fixme: really need to handle this case faster somehow
3609#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3610 }
3611 # And now we should have a unique location. tinydns fundamentally limits the
3612 # number of these but there's no doc on what characters are valid.
3613 $shdesc = $loc if !$shdesc;
3614 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3615 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3616 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3617 $dbh->commit;
3618 };
3619 if ($@) {
3620 my $msg = $@;
3621 eval { $dbh->rollback; };
3622 if ($self->{log_failures}) {
3623 $shdesc = $loc if !$shdesc;
3624 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3625 $dbh->commit;
3626 }
3627 return ('FAIL',$msg);
3628 }
3629
3630 return ('OK',$loc);
3631} # end addLoc()
3632
3633
3634## DNSDB::updateLoc()
3635# Update details of a location.
3636# Takes a database handle, location ID, group ID, short description,
3637# long comments/notes, and comma/space-separated IP list
3638# Returns a result code and message
3639sub updateLoc {
3640 my $self = shift;
3641 my $dbh = $self->{dbh};
3642 my $loc = shift;
3643 my $grp = shift;
3644 my $shdesc = shift;
3645 my $comments = shift;
3646 my $iplist = shift;
3647
3648 $shdesc = '' if !$shdesc;
3649 $comments = '' if !$comments;
3650 $iplist = '' if !$iplist;
3651
3652 # Allow transactions, and raise an exception on errors so we can catch it later.
3653 # Use local to make sure these get "reset" properly on exiting this block
3654 local $dbh->{AutoCommit} = 0;
3655 local $dbh->{RaiseError} = 1;
3656
3657 my $oldloc = $self->getLoc($loc);
3658 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3659
3660 eval {
3661 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3662 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3663 $self->_log(entry => $okmsg);
3664 $dbh->commit;
3665 };
3666 if ($@) {
3667 my $msg = $@;
3668 eval { $dbh->rollback; };
3669 if ($self->{log_failures}) {
3670 $shdesc = $loc if !$shdesc;
3671 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3672 $dbh->commit;
3673 }
3674 return ('FAIL',$msg);
3675 }
3676
3677 return ('OK',$okmsg);
3678} # end updateLoc()
3679
3680
3681## DNSDB::delLoc()
3682sub delLoc {
3683 my $self = shift;
3684 my $dbh = $self->{dbh};
3685 my $loc = shift;
3686
3687 # Allow transactions, and raise an exception on errors so we can catch it later.
3688 # Use local to make sure these get "reset" properly on exiting this block
3689 local $dbh->{AutoCommit} = 0;
3690 local $dbh->{RaiseError} = 1;
3691
3692 my $oldloc = $self->getLoc($loc);
3693 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3694 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3695
3696 eval {
3697 # Check for records with this location first. Deleting a location without deleting records
3698 # tagged for that location will render them unpublished without other warning.
3699 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3700 die "Records still exist in location $olddesc\n" if $r;
3701 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3702 $self->_log(entry => $okmsg);
3703 $dbh->commit;
3704 };
3705 if ($@) {
3706 my $msg = $@;
3707 eval { $dbh->rollback; };
3708 if ($self->{log_failures}) {
3709 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3710 $dbh->commit;
3711 }
3712 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3713 }
3714
3715 return ('OK',$okmsg);
3716} # end delLoc()
3717
3718
3719## DNSDB::getLoc()
3720# Get details about a location/view
3721# Takes a database handle and location ID.
3722# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3723sub getLoc {
3724 my $self = shift;
3725 my $dbh = $self->{dbh};
3726 my $loc = shift;
3727
3728 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3729 $sth->execute($loc);
3730 return $sth->fetchrow_hashref();
3731} # end getLoc()
3732
3733
3734## DNSDB::getLocCount()
3735# Get count of locations/views
3736# Takes a database handle and hash containing at least the current group, and optionally:
3737# - a reference list of secondary groups
3738# - a filter string
3739# - a "Starts with" string
3740sub getLocCount {
3741 my $self = shift;
3742 my $dbh = $self->{dbh};
3743
3744 my %args = @_;
3745
3746 # Fail on bad curgroup argument. There's no sane fallback on this one.
3747 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3748 $errstr = "Bad or missing curgroup argument";
3749 return;
3750 }
3751 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3752 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3753 $errstr = "Bad childlist argument";
3754 return;
3755 }
3756
3757 my @filterargs;
3758 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3759 push @filterargs, "^$args{startwith}" if $args{startwith};
3760 push @filterargs, $args{filter} if $args{filter};
3761
3762 my $sql = "SELECT count(*) FROM locations ".
3763 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3764 ($args{startwith} ? " AND description ~* ?" : '').
3765 ($args{filter} ? " AND description ~* ?" : '');
3766 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3767 $errstr = $dbh->errstr if !$count;
3768 return $count;
3769} # end getLocCount()
3770
3771
3772## DNSDB::getLocList()
3773sub getLocList {
3774 my $self = shift;
3775 my $dbh = $self->{dbh};
3776
3777 my %args = @_;
3778
3779 # Fail on bad curgroup argument. There's no sane fallback on this one.
3780 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3781 $errstr = "Bad or missing curgroup argument";
3782 return;
3783 }
3784 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3785 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3786 $errstr = "Bad childlist argument";
3787 return;
3788 }
3789
3790 my @filterargs;
3791 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3792 push @filterargs, "^$args{startwith}" if $args{startwith};
3793 push @filterargs, $args{filter} if $args{filter};
3794
3795 # better to request sorts on "simple" names, but it means we need to map it to real columns
3796# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3797# fname => 'fname');
3798# $args{sortby} = $sortmap{$args{sortby}};
3799
3800 # protection against bad or missing arguments
3801 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3802 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3803 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3804
3805 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3806 "FROM locations l ".
3807 "INNER JOIN groups g ON l.group_id=g.group_id ".
3808 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3809 ($args{startwith} ? " AND l.description ~* ?" : '').
3810 ($args{filter} ? " AND l.description ~* ?" : '').
3811 " ORDER BY $args{sortby} $args{sortorder} ".
3812 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3813 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3814 $errstr = $dbh->errstr if !$ulist;
3815 return $ulist;
3816} # end getLocList()
3817
3818
3819## DNSDB::getLocDropdown()
3820# Get a list of location names for use in a dropdown menu.
3821# Takes a database handle, current group, and optional "tag this as selected" flag.
3822# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3823sub getLocDropdown {
3824 my $self = shift;
3825 my $dbh = $self->{dbh};
3826 my $grp = shift;
3827 my $sel = shift || '';
3828
3829 my $sth = $dbh->prepare(qq(
3830 SELECT description,location FROM locations
3831 WHERE group_id=?
3832 ORDER BY description
3833 ) );
3834 $sth->execute($grp);
3835
3836 my @loclist;
3837 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3838 while (my ($locname, $loc) = $sth->fetchrow_array) {
3839 my %row = (
3840 locname => $locname,
3841 loc => $loc,
3842 selected => ($sel eq $loc ? 1 : 0)
3843 );
3844 push @loclist, \%row;
3845 }
3846 return \@loclist;
3847} # end getLocDropdown()
3848
3849
3850## DNSDB::getSOA()
3851# Return all suitable fields from an SOA record in separate elements of a hash
3852# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3853sub getSOA {
3854 $errstr = '';
3855 my $self = shift;
3856 my $dbh = $self->{dbh};
3857 my $def = shift;
3858 my $rev = shift;
3859 my $id = shift;
3860
3861 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3862 # - should really attach serial to the zone parent somewhere
3863
3864 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3865 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3866 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3867 return if !$ret;
3868##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3869
3870 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3871 delete $ret->{host};
3872 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3873 delete $ret->{val};
3874
3875 return $ret;
3876} # end getSOA()
3877
3878
3879## DNSDB::updateSOA()
3880# Update the specified SOA record
3881# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3882# Returns a two-element list with a result code and message
3883sub updateSOA {
3884 my $self = shift;
3885 my $dbh = $self->{dbh};
3886 my $defrec = shift;
3887 my $revrec = shift;
3888
3889 my %soa = @_;
3890
3891 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
3892
3893 my $msg;
3894 my %logdata;
3895 if ($defrec eq 'n') {
3896 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3897 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3898 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
3899 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
3900 } else {
3901 $logdata{group_id} = $soa{id};
3902 }
3903 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
3904 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
3905
3906 # Allow transactions, and raise an exception on errors so we can catch it later.
3907 # Use local to make sure these get "reset" properly on exiting this block
3908 local $dbh->{AutoCommit} = 0;
3909 local $dbh->{RaiseError} = 1;
3910
3911 eval {
3912 if (!$oldsoa) {
3913 # old SOA record is missing for some reason. create a new one.
3914 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
3915 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
3916 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
3917 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
3918 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
3919 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3920 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3921 } else {
3922 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3923 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3924 $soa{ttl}, $oldsoa->{record_id}) );
3925 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3926 "SOA for $parname: ".
3927 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3928 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3929 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3930 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3931 }
3932 $logdata{entry} = $msg;
3933 $self->_log(%logdata);
3934
3935 $dbh->commit;
3936 };
3937 if ($@) {
3938 $msg = $@;
3939 eval { $dbh->rollback; };
3940 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3941 "SOA record for $parname: $msg";
3942 if ($self->{log_failures}) {
3943 $self->_log(%logdata);
3944 $dbh->commit;
3945 }
3946 return ('FAIL', $logdata{entry});
3947 } else {
3948 return ('OK', $msg);
3949 }
3950} # end updateSOA()
3951
3952
3953## DNSDB::getRecLine()
3954# Return all data fields for a zone record in separate elements of a hash
3955# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3956sub getRecLine {
3957 $errstr = '';
3958 my $self = shift;
3959 my $dbh = $self->{dbh};
3960 my $defrec = shift;
3961 my $revrec = shift;
3962 my $id = shift;
3963
3964##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
3965 my $sql = "SELECT record_id,host,type,val,ttl".
3966 ($defrec eq 'n' ? ',location' : '').
3967 ($revrec eq 'n' ? ',distance,weight,port' : '').
3968 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
3969 _rectable($defrec,$revrec)." WHERE record_id=?";
3970 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3971
3972 if ($dbh->err) {
3973 $errstr = $DBI::errstr;
3974 return undef;
3975 }
3976
3977 if (!$ret) {
3978 $errstr = "No such record";
3979 return undef;
3980 }
3981
3982 # explicitly set a parent id
3983 if ($defrec eq 'y') {
3984 $ret->{parid} = $ret->{group_id};
3985 } else {
3986 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3987 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3988 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3989 }
3990 $ret->{address} = $ret->{val}; # because.
3991
3992 return $ret;
3993}
3994
3995
3996##fixme: should use above (getRecLine()) to get lines for below?
3997## DNSDB::getRecList()
3998# Return records for a group or zone
3999# Takes a default/live flag, group or zone ID, start,
4000# number of records, sort field, and sort order
4001# Returns a reference to an array of hashes
4002sub getRecList {
4003 $errstr = '';
4004 my $self = shift;
4005 my $dbh = $self->{dbh};
4006
4007 my %args = @_;
4008
4009 $args{revrec} = 'n' if !$args{revrec};
4010 $args{defrec} = 'n' if !$args{defrec};
4011
4012 # protection against bad or missing arguments
4013 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4014 my $defsort;
4015 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
4016 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
4017 $args{sortby} = '' if !$args{sortby};
4018 $args{sortby} = $defsort if !$args{revrec};
4019 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
4020 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4021 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
4022
4023
4024##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
4025 my @bindvars;
4026 my $sql = "SELECT r.record_id,";
4027 # only include the parent info if we don't already know which parent we're in
4028 $sql .= "r.domain_id,r.rdns_id," unless $args{id};
4029 $sql .= "r.host,r.type,r.val,r.ttl";
4030 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
4031 if $args{defrec} eq 'n';
4032 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
4033 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
4034 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
4035 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
4036 $sql .= "WHERE NOT r.type=$reverse_typemap{SOA}";
4037
4038 # "normal" record list
4039 if ($args{id}) {
4040 $sql .= " AND "._recparent($args{defrec},$args{revrec})." = ?";
4041 push @bindvars, $args{id};
4042 }
4043
4044 # Filtering on host/val (mainly normal record list)
4045 if ($args{filter}) {
4046 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
4047 my $tmp = join('.',reverse(split(/\./,$args{filter})));
4048 push @bindvars, ($args{filter},$args{filter});
4049 push @bindvars, ($tmp, $tmp);
4050 }
4051
4052 # Filtering on other fields
4053 foreach (qw(type distance weight port ttl description)) {
4054 if ($args{$_}) {
4055 $sql .= " AND $_ ~* ?";
4056 push @bindvars, $args{$_};
4057 }
4058 }
4059
4060 # whee! multisort means just passing comma-separated fields in sortby!
4061 my $newsort = '';
4062 foreach my $sf (split /,/, $args{sortby}) {
4063 $sf = "r.$sf";
4064 # sort on IP, correctly
4065 $sf =~ s/r\.val/inetlazy(r.val)/;
4066# hmm. do we really need to limit this?
4067# if $args{revrec} eq 'y' && $args{defrec} eq 'n';
4068 $sf =~ s/r\.type/t.alphaorder/; # subtly different from sorting on rectypes.name
4069 $newsort .= ",$sf";
4070 }
4071 $newsort =~ s/^,//;
4072##enhance: pass in ascending/descending sort per-field
4073 $sql .= " ORDER BY $newsort $args{sortorder}";
4074 # ensure consistent ordering by sorting on record_id too
4075 $sql .= ", record_id $args{sortorder}";
4076
4077 # Offset/pagination
4078 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
4079
4080 my @working;
4081 my $recsth = $dbh->prepare($sql);
4082 $recsth->execute(@bindvars);
4083 while (my $rec = $recsth->fetchrow_hashref) {
4084 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
4085 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
4086 $rec->{val} !~ /\.arpa$/ ) {
4087 # skip all reverse zone .arpa "hostnames" since they're already .arpa names.
4088##enhance: extend {showrev_arpa} eq 'record' to specify record types
4089 my $tmpip = new NetAddr::IP $rec->{val} if $rec->{val} =~ /^(?:[\d.\/]+|[a-fA-F0-9:\/]+)$/;
4090 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
4091 }
4092 push @working, $rec;
4093 }
4094 return \@working;
4095} # end getRecList()
4096
4097
4098## DNSDB::getRecCount()
4099# Return count of non-SOA records in zone (or default records in a group)
4100# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
4101# and optional filtering modifier
4102# Returns the count
4103sub getRecCount {
4104 my $self = shift;
4105 my $dbh = $self->{dbh};
4106
4107 my %args = @_;
4108
4109 $args{defrec} = 'n' if !$args{defrec};
4110 $args{revrec} = 'n' if !$args{revrec};
4111
4112 my @bindvars;
4113 my $sql = "SELECT count(*) FROM ".
4114 _rectable($args{defrec},$args{revrec}).
4115 " WHERE NOT type=$reverse_typemap{SOA}";
4116 if ($args{id}) {
4117 $sql .= " AND "._recparent($args{defrec},$args{revrec})." = ?";
4118 push @bindvars, $args{id};
4119 }
4120
4121 # Filtering on host/val (mainly normal record list)
4122 if ($args{filter}) {
4123 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
4124 my $tmp = join('.',reverse(split(/\./,$args{filter})));
4125 push @bindvars, ($args{filter},$args{filter});
4126 push @bindvars, ($tmp, $tmp);
4127 }
4128
4129 # Filtering on other fields
4130 foreach (qw(type distance weight port ttl description)) {
4131 if ($args{$_}) {
4132 $sql .= " AND $_ ~* ?";
4133 push @bindvars, $args{$_};
4134 }
4135 }
4136
4137 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
4138
4139 return $count;
4140
4141} # end getRecCount()
4142
4143
4144## DNSDB::addRec()
4145# Add a new record to a domain or a group's default records
4146# Takes a database handle, default/live flag, group/domain ID,
4147# host, type, value, and TTL
4148# Some types require additional detail: "distance" for MX and SRV,
4149# and weight/port for SRV
4150# Returns a status code and detail message in case of error
4151##fixme: pass a hash with the record data, not a series of separate values
4152sub addRec {
4153 $errstr = '';
4154 my $self = shift;
4155 my $dbh = $self->{dbh};
4156 my $defrec = shift;
4157 my $revrec = shift;
4158 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
4159 # domain_id for domain records)
4160
4161 my $host = shift;
4162 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
4163 my $val = shift;
4164 my $ttl = shift;
4165 my $location = shift;
4166 $location = '' if !$location;
4167
4168 my $expires = shift || '';
4169 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4170 $expires = 0 if $expires eq 'after';
4171 my $stamp = shift;
4172 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4173
4174 # Spaces are evil.
4175 $$host =~ s/^\s+//;
4176 $$host =~ s/\s+$//;
4177 if ($typemap{$$rectype} ne 'TXT') {
4178 # Leading or trailng spaces could be legit in TXT records.
4179 $$val =~ s/^\s+//;
4180 $$val =~ s/\s+$//;
4181 }
4182
4183 _caseclean($rectype, $host, $val, $defrec, $revrec) if $self->{lowercase};
4184
4185 # prep for validation
4186 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4187 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4188
4189 my $domid = 0;
4190 my $revid = 0;
4191
4192 my $retcode = 'OK'; # assume everything will go OK
4193 my $retmsg = '';
4194
4195 # do simple validation first
4196 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4197
4198 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
4199 my $dist = shift;
4200 my $weight = shift;
4201 my $port = shift;
4202
4203 my $fields;
4204 my @vallist;
4205
4206 # Call the validation sub for the type requested.
4207 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
4208 host => $host, rectype => $rectype, val => $val, addr => $addr,
4209 dist => \$dist, port => \$port, weight => \$weight,
4210 fields => \$fields, vallist => \@vallist);
4211
4212 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4213
4214 # Set up database fields and bind parameters
4215 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4216 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
4217
4218 if ($defrec eq 'n') {
4219 # locations are not for default records, silly coder!
4220 $fields .= ",location";
4221 push @vallist, $location;
4222 # timestamps are rare.
4223 if ($stamp) {
4224 $fields .= ",stamp,expires,stampactive";
4225 push @vallist, $stamp, $expires, 'y';
4226 } else {
4227 $fields .= ",stampactive";
4228 push @vallist, 'n';
4229 }
4230 }
4231
4232 # a little magic to get the right number of ? placeholders based on how many values we're providing
4233 my $vallen = '?'.(',?'x$#vallist);
4234
4235 # Put together the success log entry. We have to use this horrible kludge
4236 # because domain_id and rdns_id may or may not be present, and if they are,
4237 # they're not at a guaranteed consistent index in the array. wheee!
4238 my %logdata;
4239 my @ftmp = split /,/, $fields;
4240 for (my $i=0; $i <= $#vallist; $i++) {
4241 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4242 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4243 }
4244 $logdata{group_id} = $id if $defrec eq 'y';
4245 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4246 if $defrec eq 'n';
4247 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
4248 # Log reverse records to match the formal .arpa tree
4249 if ($revrec eq 'y') {
4250 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
4251 } else {
4252 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
4253 }
4254
4255 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4256 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
4257 if $typemap{$$rectype} eq 'SRV';
4258 $logdata{entry} .= "', TTL $ttl";
4259 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4260 $logdata{entry} .= ($expires ? ', expires at ' : ', valid after ').$stamp if $stamp;
4261
4262 # Allow transactions, and raise an exception on errors so we can catch it later.
4263 # Use local to make sure these get "reset" properly on exiting this block
4264 local $dbh->{AutoCommit} = 0;
4265 local $dbh->{RaiseError} = 1;
4266
4267 eval {
4268 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
4269 undef, @vallist);
4270 $self->_log(%logdata);
4271 $dbh->commit;
4272 };
4273 if ($@) {
4274 my $msg = $@;
4275 eval { $dbh->rollback; };
4276 if ($self->{log_failures}) {
4277 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
4278 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
4279 $self->_log(%logdata);
4280 $dbh->commit;
4281 }
4282 return ('FAIL',$msg);
4283 }
4284
4285 $resultstr = $logdata{entry};
4286 return ($retcode, $retmsg);
4287
4288} # end addRec()
4289
4290
4291## DNSDB::updateRec()
4292# Update a record
4293# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
4294# Returns a status code and message
4295sub updateRec {
4296 $errstr = '';
4297
4298 my $self = shift;
4299 my $dbh = $self->{dbh};
4300 my $defrec = shift;
4301 my $revrec = shift;
4302 my $id = shift;
4303 my $parid = shift; # immediate parent entity that we're descending from to update the record
4304
4305 # all records have these
4306 my $host = shift;
4307 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
4308 my $rectype = shift;
4309 my $val = shift;
4310 my $ttl = shift;
4311 my $location = shift; # may be empty/null/undef depending on caller
4312 $location = '' if !$location;
4313
4314 my $expires = shift || '';
4315 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4316 $expires = 0 if $expires eq 'after';
4317 my $stamp = shift;
4318 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4319
4320 # just set it to an empty string; failures will be caught later.
4321 $$host = '' if !$$host;
4322
4323 # Spaces are evil.
4324 $$host =~ s/^\s+//;
4325 $$host =~ s/\s+$//;
4326 if ($typemap{$$rectype} ne 'TXT') {
4327 # Leading or trailng spaces could be legit in TXT records.
4328 $$val =~ s/^\s+//;
4329 $$val =~ s/\s+$//;
4330 }
4331
4332 _caseclean($rectype, $host, $val, $defrec, $revrec) if $self->{lowercase};
4333
4334 # prep for validation
4335 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4336 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4337
4338 my $domid = 0;
4339 my $revid = 0;
4340
4341 my $retcode = 'OK'; # assume everything will go OK
4342 my $retmsg = '';
4343
4344 # do simple validation first
4345 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4346
4347 # only MX and SRV will use these
4348 my $dist = shift || 0;
4349 my $weight = shift || 0;
4350 my $port = shift || 0;
4351
4352 my $fields;
4353 my @vallist;
4354
4355 # get old record data so we have the right parent ID
4356 # and for logging (eventually)
4357 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4358
4359 # Call the validation sub for the type requested.
4360 # Note the ID to pass here is the *parent*, not the record
4361 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4362 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4363 host => $host, rectype => $rectype, val => $val, addr => $addr,
4364 dist => \$dist, port => \$port, weight => \$weight,
4365 fields => \$fields, vallist => \@vallist,
4366 update => $id);
4367
4368 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4369
4370 # Set up database fields and bind parameters. Note only the optional fields
4371 # (distance, weight, port, secondary parent ID) are added in the validation call above
4372 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4373 push @vallist, ($$host,$$rectype,$$val,$ttl,
4374 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4375
4376 if ($defrec eq 'n') {
4377 # locations are not for default records, silly coder!
4378 $fields .= ",location";
4379 push @vallist, $location;
4380 # timestamps are rare.
4381 if ($stamp) {
4382 $fields .= ",stamp,expires,stampactive";
4383 push @vallist, $stamp, $expires, 'y';
4384 } else {
4385 $fields .= ",stampactive";
4386 push @vallist, 'n';
4387 }
4388 }
4389
4390 # hack hack PTHUI
4391 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4392 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4393 # needed for crossover types that got coerced down to "standard" types due to data changes
4394 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4395 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4396 if ($$rectype == $reverse_typemap{PTR}) {
4397 $fields .= ",domain_id";
4398 push @vallist, 0;
4399 }
4400 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4401 $fields .= ",rdns_id";
4402 push @vallist, 0;
4403 }
4404 }
4405 # fix fat-finger-originated record type changes
4406 if ($$rectype == 65285) { # delegation
4407 $fields .= ",rdns_id" if $revrec eq 'n';
4408 $fields .= ",domain_id" if $revrec eq 'y';
4409 push @vallist, 0;
4410 }
4411 # ... and now make sure we *do* associate a record with the "calling" parent
4412 if ($defrec eq 'n') {
4413 $domid = $parid if $revrec eq 'n';
4414 $revid = $parid if $revrec eq 'y';
4415 }
4416
4417 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4418 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4419 # will be maintained (due to "not-in-zone" validation changes)
4420 my %logdata;
4421 $logdata{domain_id} = $domid;
4422 $logdata{rdns_id} = $revid;
4423 my @ftmp = split /,/, $fields;
4424 for (my $i=0; $i <= $#vallist; $i++) {
4425 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4426 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4427 }
4428 $logdata{group_id} = $parid if $defrec eq 'y';
4429 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4430 if $defrec eq 'n';
4431 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4432 # Log reverse records "naturally", since they're stored, um, unnaturally.
4433 if ($revrec eq 'y') {
4434 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4435 } else {
4436 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4437 }
4438 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4439 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4440 if $typemap{$oldrec->{type}} eq 'SRV';
4441 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4442 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4443 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4444 if $oldrec->{stampactive};
4445 $logdata{entry} .= "\nto\n";
4446 # Log reverse records "naturally", since they're stored, um, unnaturally.
4447 if ($revrec eq 'y') {
4448 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4449 } else {
4450 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4451 }
4452 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4453 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4454 $logdata{entry} .= "', TTL $ttl";
4455 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4456 $logdata{entry} .= ($expires ? ', expires at ' : ', valid after ').$stamp if $stamp;
4457
4458 local $dbh->{AutoCommit} = 0;
4459 local $dbh->{RaiseError} = 1;
4460
4461 # Fiddle the field list into something suitable for updates
4462 $fields =~ s/,/=?,/g;
4463 $fields .= "=?";
4464
4465 eval {
4466 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4467 $self->_log(%logdata);
4468 $dbh->commit;
4469 };
4470 if ($@) {
4471 my $msg = $@;
4472 eval { $dbh->rollback; };
4473 if ($self->{log_failures}) {
4474 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4475 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4476 $self->_log(%logdata);
4477 $dbh->commit;
4478 }
4479 return ('FAIL', $msg);
4480 }
4481
4482 $resultstr = $logdata{entry};
4483 return ($retcode, $retmsg);
4484} # end updateRec()
4485
4486
4487## DNSDB::downconvert()
4488# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4489# to a compatible component type. Only a handful of operations are valid, anything
4490# else is a null-op.
4491# Takes the record ID and the new type. Returns boolean.
4492sub downconvert {
4493 my $self = shift;
4494 my $dbh = $self->{dbh};
4495 my $recid = shift;
4496 my $newtype = shift;
4497
4498 # also, only work on live records; little to no value trying to do this on default records.
4499 my $rec = $self->getRecLine('n', 'y', $recid);
4500
4501 # hm?
4502 #return 1 if !$rec;
4503
4504 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4505 return 1 if $rec->{type} == 65282; # Nowhere to go
4506
4507 my $delpar;
4508 my @sqlargs;
4509 if ($rec->{type} == 65280) {
4510 return 1 if $newtype != 1 && $newtype != 12;
4511 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4512 push @sqlargs, 0, $newtype, $recid;
4513 } elsif ($rec->{type} == 65281) {
4514 return 1 if $newtype != 28 && $newtype != 12;
4515 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4516 push @sqlargs, 0, $newtype, $recid;
4517 } elsif ($rec->{type} == 65283) {
4518 return 1 if $newtype != 65282;
4519 $delpar = 'rdns_id';
4520 } elsif ($rec->{type} == 65284) {
4521 return 1 if $newtype != 65282;
4522 $delpar = 'rdns_id';
4523 } else {
4524 # Your llama is on fire.
4525 }
4526
4527 local $dbh->{AutoCommit} = 0;
4528 local $dbh->{RaiseError} = 1;
4529
4530 eval {
4531 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4532 $self->_log(domain_id => $rec->{domain_id}, rdns_id => $rec->{rdns_id},
4533 group_id => $self->parentID(id => $rec->{rdns_id}, type => 'revzone', revrec => 'y'),
4534 entry => "'$rec->{host} $typemap{$rec->{type}} $rec->{val}' downconverted to ".
4535 "'$rec->{host} $typemap{$newtype} $rec->{val}'");
4536 $dbh->commit;
4537 };
4538 if ($@) {
4539 $errstr = $@;
4540 eval { $dbh->rollback; };
4541 return 0;
4542 }
4543 return 1;
4544} # end downconvert()
4545
4546
4547## DNSDB::delRec()
4548# Delete a record.
4549# Takes a default/live flag, forward/reverse flag, and the ID of the record to delete.
4550sub delRec {
4551 $errstr = '';
4552 my $self = shift;
4553 my $dbh = $self->{dbh};
4554 my $defrec = shift;
4555 my $revrec = shift;
4556 my $id = shift;
4557
4558 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4559
4560 # Allow transactions, and raise an exception on errors so we can catch it later.
4561 # Use local to make sure these get "reset" properly on exiting this block
4562 local $dbh->{AutoCommit} = 0;
4563 local $dbh->{RaiseError} = 1;
4564
4565 # Put together the log entry
4566 my %logdata;
4567 $logdata{domain_id} = $oldrec->{domain_id};
4568 $logdata{rdns_id} = $oldrec->{rdns_id};
4569 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4570 $logdata{group_id} = $self->parentID(id => ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id}),
4571 type => 'domain', revrec => $revrec)
4572 if $defrec eq 'n';
4573 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4574 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4575 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4576 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4577 if $typemap{$oldrec->{type}} eq 'SRV';
4578 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4579 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4580
4581 eval {
4582 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4583 $self->_log(%logdata);
4584 $dbh->commit;
4585 };
4586 if ($@) {
4587 my $msg = $@;
4588 eval { $dbh->rollback; };
4589 if ($self->{log_failures}) {
4590 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4591 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4592 $self->_log(%logdata);
4593 $dbh->commit;
4594 }
4595 return ('FAIL', $msg);
4596 }
4597
4598 return ('OK',$logdata{entry});
4599} # end delRec()
4600
4601
4602## DNSDB::getLogCount()
4603# Get a count of log entries
4604# Takes a database handle and a hash containing at least:
4605# - Entity ID and entity type as the primary log "slice"
4606sub getLogCount {
4607 my $self = shift;
4608 my $dbh = $self->{dbh};
4609
4610 my %args = @_;
4611
4612 my @filterargs;
4613##fixme: which fields do we want to filter on?
4614# push @filterargs,
4615
4616 $errstr = 'Missing primary parent ID and/or type';
4617 # fail early if we don't have a "prime" ID to look for log entries for
4618 return if !$args{id};
4619
4620 # or if the prime id type is missing or invalid
4621 return if !$args{logtype};
4622 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4623 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4624 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4625
4626 my $sql = "SELECT count(*) FROM log ".
4627 "WHERE $id_col{$args{logtype}}=?".
4628 ($args{filter} ? " AND entry ~* ?" : '');
4629 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4630 $errstr = $dbh->errstr if !$count;
4631 return $count;
4632} # end getLogCount()
4633
4634
4635## DNSDB::getLogEntries()
4636# Get a list of log entries
4637# Takes arguments as with getLogCount() above, plus optional:
4638# - sort field
4639# - sort order
4640# - offset for pagination
4641sub getLogEntries {
4642 my $self = shift;
4643 my $dbh = $self->{dbh};
4644
4645 my %args = @_;
4646
4647 my @filterargs;
4648
4649 # fail early if we don't have a "prime" ID to look for log entries for
4650 return if !$args{id};
4651
4652 # or if the prime id type is missing or invalid
4653 return if !$args{logtype};
4654 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4655 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4656 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4657
4658 # Sorting defaults
4659 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4660 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4661 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4662
4663 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4664 $args{sortby} = $sortmap{$args{sortby}};
4665
4666 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4667 "date_trunc('second',stamp) AS logtime ".
4668 "FROM log ".
4669 "WHERE $id_col{$args{logtype}}=?".
4670 ($args{filter} ? " AND entry ~* ?" : '').
4671 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4672 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4673 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4674 $errstr = $dbh->errstr if !$loglist;
4675 return $loglist;
4676} # end getLogEntries()
4677
4678
4679## IPDB::getRevPattern()
4680# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4681sub getRevPattern {
4682 my $self = shift;
4683 my $dbh = $self->{dbh};
4684 my $cidr = shift;
4685 my $group = shift || 1; # just in case
4686
4687 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4688 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?",
4689 undef, ($cidr) );
4690
4691##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4692 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4693 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) >>= ? ".
4694 "ORDER BY inetlazy(val) DESC LIMIT 1", undef, ($revid, $cidr) );
4695 return $revpatt;
4696} # end getRevPattern()
4697
4698
4699## DNSDB::getTypelist()
4700# Get a list of record types for various UI dropdowns
4701# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4702# Returns an arrayref to list of hashrefs perfect for HTML::Template
4703sub getTypelist {
4704 my $self = shift;
4705 my $dbh = $self->{dbh};
4706 my $recgroup = shift;
4707 my $type = shift || $reverse_typemap{A};
4708
4709 # also accepting $webvar{revrec}!
4710 $recgroup = 'f' if $recgroup eq 'n';
4711 $recgroup = 'r' if $recgroup eq 'y';
4712
4713 my $sql = "SELECT val,name FROM rectypes WHERE ";
4714 if ($recgroup eq 'r') {
4715 # reverse zone types
4716 $sql .= "stdflag=2 OR stdflag=3";
4717 } elsif ($recgroup eq 'l') {
4718 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4719 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4720 } else {
4721 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4722 $sql .= "stdflag=1 OR stdflag=2";
4723 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4724 }
4725 $sql .= " ORDER BY listorder";
4726
4727 my $sth = $dbh->prepare($sql);
4728 $sth->execute;
4729 my @typelist;
4730 # track whether the passed type is in the list at all. allows you to edit a record
4731 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4732 # without changing its type (accidentally or otherwise)
4733 my $selflag = 0;
4734 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4735 my %row = ( recval => $rval, recname => $rname );
4736 if ($rval == $type) {
4737 $row{tselect} = 1;
4738 $selflag = 1;
4739 }
4740 push @typelist, \%row;
4741 }
4742
4743 # add the passed type if it wasn't in the list
4744 if (!$selflag) {
4745 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4746 push @typelist, \%row;
4747 }
4748
4749 # Add SOA on lookups since it's not listed in other dropdowns.
4750 if ($recgroup eq 'l') {
4751 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4752 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4753 push @typelist, \%row;
4754 }
4755
4756 return \@typelist;
4757} # end getTypelist()
4758
4759
4760## DNSDB::parentID()
4761# Get ID of entity that is nearest parent to requested id
4762# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4763# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4764# Returns the ID or undef on failure
4765sub parentID {
4766 my $self = shift;
4767 my $dbh = $self->{dbh};
4768
4769 my %args = @_;
4770
4771 # clean up defrec and revrec. default to live record, forward zone
4772 $args{defrec} = 'n' if !$args{defrec};
4773 $args{revrec} = 'n' if !$args{revrec};
4774
4775 # clean up the parent-type. Set it to group if not set
4776 $args{partype} = 'group' if !$args{partype};
4777
4778 # allow callers to be lazy with type
4779 $args{type} = 'revzone' if $args{type} eq 'domain' && $args{revrec} eq 'y';
4780
4781 if ($par_type{$args{partype}} eq 'domain' || $par_type{$args{partype}} eq 'revzone') {
4782 # only live records can have a domain/zone parent
4783 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4784 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4785 " FROM records WHERE record_id = ?",
4786 undef, ($args{id}) ) or return;
4787 return $result;
4788 } else {
4789 # snag some arguments that will either fall through or be overwritten to save some code duplication
4790 my $tmpid = $args{id};
4791 my $type = $args{type};
4792 if ($type eq 'record' && $args{defrec} eq 'n') {
4793 # Live records go through the records table first.
4794 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4795 " FROM records WHERE record_id = ?",
4796 undef, ($args{id}) ) or return;
4797 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4798 }
4799 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4800 undef, ($tmpid) );
4801 return $result;
4802 }
4803# should be impossible to get here with even remotely sane arguments
4804 return;
4805} # end parentID()
4806
4807
4808## DNSDB::isParent()
4809# Returns true if $id1 is a parent of $id2, false otherwise
4810sub isParent {
4811 my $self = shift;
4812 my $dbh = $self->{dbh};
4813 my $id1 = shift;
4814 my $type1 = shift;
4815 my $id2 = shift;
4816 my $type2 = shift;
4817##todo: immediate, secondary, full (default)
4818
4819 # Return false on invalid types
4820 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4821 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4822
4823 # Return false on impossible relations
4824 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4825 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4826 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4827 return 0 if $type1 eq 'user'; # nothing may be child of a user
4828 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4829 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4830
4831 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4832 # case would be the UI creating a new <thing>, and so we don't have an ID for
4833 # <thing> to look up yet. in that case the UI should check the parent as well.
4834 return 0 if $id1 == 0; # nothing can have a parent id of 0
4835 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4836
4837 # group 1 is the ultimate root parent
4838 return 1 if $type1 eq 'group' && $id1 == 1;
4839
4840 # groups are always (a) parent of themselves
4841 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4842
4843 my $id = $id2;
4844 my $type = $type2;
4845 my $foundparent = 0;
4846
4847 # Records are the only entity with two possible parents. We need to split the parent checks on
4848 # domain/rdns.
4849 if ($type eq 'record') {
4850 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4851 undef, ($id));
4852 # check immediate parent against request
4853 return 1 if $type1 eq 'domain' && $id1 == $dom;
4854 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4855 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4856 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
4857 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
4858 # exit here since we've executed the loop below by proxy in the above recursive calls.
4859 return 0;
4860 }
4861
4862# almost the same loop as getParents() above
4863 my $limiter = 0;
4864 while (1) {
4865 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4866 my $result = $dbh->selectrow_hashref($sql,
4867 undef, ($id) );
4868 if (!$result) {
4869 $limiter++;
4870##fixme: how often will this happen on a live site? fail at max limiter <n>?
4871# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
4872 warn "no results looking for $sql with id $id (depth $limiter)\n";
4873 last;
4874 }
4875 if ($result && $result->{$par_col{$type}} == $id1) {
4876 $foundparent = 1;
4877 last;
4878 } else {
4879##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4880# should be impossible to create an inconsistent DB just with API calls.
4881 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4882 }
4883 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4884 last if $result->{$par_col{$type}} == 1;
4885 $id = $result->{$par_col{$type}};
4886 $type = $par_type{$type};
4887 }
4888
4889 return $foundparent;
4890} # end isParent()
4891
4892
4893## DNSDB::zoneStatus()
4894# Returns and optionally sets a zone's status
4895# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4896# Returns status, or undef on errors.
4897sub zoneStatus {
4898 my $self = shift;
4899 my $dbh = $self->{dbh};
4900 my $id = shift;
4901 my $revrec = shift;
4902 my $newstatus = shift || 'mu';
4903
4904 return undef if $id !~ /^\d+$/;
4905
4906 # Allow transactions, and raise an exception on errors so we can catch it later.
4907 # Use local to make sure these get "reset" properly on exiting this block
4908 local $dbh->{AutoCommit} = 0;
4909 local $dbh->{RaiseError} = 1;
4910
4911 if ($newstatus ne 'mu') {
4912 # ooo, fun! let's see what we were passed for status
4913 eval {
4914 $newstatus = 0 if $newstatus eq 'domoff';
4915 $newstatus = 1 if $newstatus eq 'domon';
4916 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4917 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4918
4919##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4920 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
4921 " state to ".($newstatus ? 'active' : 'inactive');
4922
4923 my %loghash;
4924 $loghash{domain_id} = $id if $revrec eq 'n';
4925 $loghash{rdns_id} = $id if $revrec eq 'y';
4926 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
4927 $loghash{entry} = $resultstr;
4928 $self->_log(%loghash);
4929
4930 $dbh->commit;
4931 };
4932 if ($@) {
4933 my $msg = $@;
4934 eval { $dbh->rollback; };
4935 $resultstr = '';
4936 $errstr = $msg;
4937 return;
4938 }
4939 }
4940
4941 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4942 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4943 undef, ($id) );
4944 return $status;
4945} # end zoneStatus()
4946
4947
4948## DNSDB::getZonesByCIDR()
4949# Get a list of zone names and IDs that records for a passed CIDR block are within.
4950sub getZonesByCIDR {
4951 my $self = shift;
4952 my $dbh = $self->{dbh};
4953 my %args = @_;
4954
4955 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
4956 { Slice => {} }, ($args{cidr}, $args{cidr}) );
4957 return $result;
4958} # end getZonesByCIDR()
4959
4960
4961## DNSDB::importAXFR
4962# Import a domain via AXFR
4963# Takes AXFR host, domain to transfer, group to put the domain in,
4964# and an optional hash containing:
4965# status - active/inactive state flag (defaults to active)
4966# rwsoa - overwrite-SOA flag (defaults to off)
4967# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4968# merge - flag to automerge A or AAAA records with matching PTR records
4969# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4970# if status is OK, but WARN includes conditions that are not fatal but should
4971# really be reported.
4972sub importAXFR {
4973 my $self = shift;
4974 my $dbh = $self->{dbh};
4975 my $ifrom_in = shift;
4976 my $zone = shift;
4977 my $group = shift;
4978
4979 my %args = @_;
4980
4981##fixme: add mode to delete&replace, merge+overwrite, merge new?
4982
4983 $args{status} = (defined($args{status}) ? $args{status} : 0);
4984 $args{status} = 1 if $args{status} eq 'on';
4985
4986 my $nrecs = 0;
4987 my $soaflag = 0;
4988 my $nsflag = 0;
4989 my $warnmsg = '';
4990 my $ifrom;
4991
4992 my $rev = 'n';
4993 my $code = 'OK';
4994 my $msg = 'foobar?';
4995
4996 # choke on possible bad setting in ifrom
4997 # IPv4 and v6, and valid hostnames!
4998 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4999 return ('FAIL', "Bad AXFR source host $ifrom")
5000 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
5001
5002 my $errmsg;
5003
5004 my $zone_id;
5005 my $domain_id = 0;
5006 my $rdns_id = 0;
5007 my $cidr;
5008
5009# magic happens! detect if we're importing a domain or a reverse zone
5010# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
5011# or what the formal .arpa zone is (if we got a CIDR netblock)
5012# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
5013
5014 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
5015 # we seem to have a reverse zone
5016 $rev = 'y';
5017
5018 if ($zone =~ /\.arpa\.?$/) {
5019 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
5020 ($code,$msg) = _zone2cidr($zone);
5021 return ($code, $msg) if $code eq 'FAIL';
5022 $cidr = $msg;
5023 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
5024 # v4 revzone, CIDR netblock
5025 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5026 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
5027 } elsif ($zone =~ /^[\d.]+$/) {
5028 # v4 revzone, leading-octet format
5029 my $mask = 32;
5030 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
5031 $zone .= '.0';
5032 $mask -= 8;
5033 }
5034 $zone .= "/$mask";
5035 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5036 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
5037 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
5038 # v6 revzone, CIDR netblock
5039 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5040 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
5041 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
5042 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
5043 # v6 revzone, leading-group format
5044 $zone =~ s/::$//;
5045 my $mask = 128;
5046 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
5047 $zone .= ":0";
5048 $mask -= 16;
5049 }
5050 $zone .= "/$mask";
5051 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5052 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
5053 } else {
5054 # there is. no. else!
5055 return ('FAIL', "Unknown zone name format '$zone'");
5056 }
5057
5058 # several places this can be triggered from; better to do it once.
5059 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
5060
5061 # quick check to start to see if we've already got one
5062
5063 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
5064 undef, ("$cidr"));
5065 $rdns_id = $zone_id;
5066 } else {
5067 # default to domain
5068 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
5069 undef, ($zone));
5070 $domain_id = $zone_id;
5071 }
5072
5073 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
5074
5075 # little local utility sub to swap $val and $host for revzone records.
5076 sub _revswap {
5077 my $rechost = shift;
5078 my $recdata = shift;
5079
5080 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
5081 $rechost =~ s/\.in-addr\.arpa\.?$//;
5082 $rechost = join '.', reverse split /\./, $rechost;
5083 } else {
5084 $rechost =~ s/\.ip6\.arpa\.?$//;
5085 my @nibs = reverse split /\./, $rechost;
5086 $rechost = '';
5087 my $nc;
5088 foreach (@nibs) {
5089# # fail on multicharacter nibbles; it's syntactically valid but no standard lookup
5090# # will ever reach it, because it doesn't directly represent a real IP address.
5091# return ('FAIL', "Invalid reverse v6 entry") if $_ !~ /^.$/;
5092 $rechost.= $_;
5093 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
5094 }
5095 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
5096##fixme: there's a case that ends up with a partial entry here:
5097# ip:add:re:ss::
5098# can't reproduce after letting it sit overnight after discovery. :(
5099#print "$rechost\n";
5100 # canonicalize with NetAddr::IP
5101 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
5102 }
5103 return ($recdata,$rechost)
5104 }
5105
5106
5107 # Allow transactions, and raise an exception on errors so we can catch it later.
5108 # Use local to make sure these get "reset" properly on exiting this block
5109 local $dbh->{AutoCommit} = 0;
5110 local $dbh->{RaiseError} = 1;
5111
5112 my $sth;
5113 eval {
5114
5115 if ($rev eq 'n') {
5116##fixme: serial
5117 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
5118 ($zone, $group, $args{status}) );
5119 # get domain id so we can do the records
5120 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
5121 $domain_id = $zone_id;
5122 $self->_log(group_id => $group, domain_id => $domain_id,
5123 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
5124 } else {
5125##fixme: serial
5126 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
5127 ($cidr,$group,$args{status}) );
5128 # get revzone id so we can do the records
5129 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
5130 $rdns_id = $zone_id;
5131 $self->_log(group_id => $group, rdns_id => $rdns_id,
5132 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
5133 }
5134
5135## bizarre DBI<->Net::DNS interaction bug:
5136## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
5137## fixed, apparently I was doing *something* odd, but not certain what it was that
5138## caused a commit instead of barfing
5139
5140 my $res = Net::DNS::Resolver->new;
5141 $res->nameservers($ifrom);
5142 $res->axfr_start($zone)
5143 or die "Couldn't begin AXFR\n";
5144
5145 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
5146 " VALUES (?,?,?,?,?,?,?,?,?)");
5147
5148 # Stash info about sub-octet v4 revzones here so we don't have
5149 # to store the CNAMEs used to delegate a suboctet zone
5150 # $suboct{zone}{ns}[] -> array of nameservers
5151 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
5152## commented pending actual use of this data. for now, we'll just
5153## auto-(re)create the CNAMEs in revzones on export
5154# my %suboct;
5155
5156 while (my $rr = $res->axfr_next()) {
5157
5158 # Discard out-of-zone records. After trying for a while to replicate this with
5159 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
5160 # in the AXFR data in the first place, and possibly only older versions at that...
5161 # so it can't be reasonably tested. Yay Microsoft.
5162 if ($rr->name !~ /$zone$/i) {
5163 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
5164 }
5165
5166 my $val;
5167 my $distance = 0;
5168 my $weight = 0;
5169 my $port = 0;
5170 my $logfrag = '';
5171
5172 # Collect some record parts
5173 my $type = $rr->type;
5174 my $host = $rr->name;
5175 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
5176
5177 # Info flags for SOA and NS records
5178 $soaflag = 1 if $type eq 'SOA';
5179 $nsflag = 1 if $type eq 'NS';
5180
5181# "Primary" types:
5182# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
5183# maybe KEY
5184
5185# BIND supports:
5186# [standard]
5187# A AAAA CNAME MX NS PTR SOA TXT
5188# [variously experimental, obsolete, or obscure]
5189# 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
5190# ... if one can ever find the right magic to format them correctly
5191
5192# Net::DNS supports:
5193# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
5194# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
5195# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
5196
5197# nasty big ugly case-like thing here, since we have to do *some* different
5198# processing depending on the record. le sigh.
5199
5200# do the initial processing as if the record was in a forward zone. If we're
5201# doing a revzone, we can flip $host and $val as needed, once, after this
5202# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
5203
5204##fixme: what record types other than TXT can/will have >255-byte payloads?
5205
5206 if ($type eq 'A') {
5207 $val = $rr->address;
5208 } elsif ($type eq 'NS') {
5209# hmm. should we warn here if subdomain NS'es are left alone? OTOH, those should rarely be rewritten anyway.
5210 next if ($args{rwns} && ($host eq $zone));
5211 $val = $rr->nsdname;
5212 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: NS records may not be bare IP addresses\n"
5213 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5214 $nsflag = 1;
5215 } elsif ($type eq 'CNAME') {
5216 $val = $rr->cname;
5217 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: CNAME records may not be bare IP addresses\n"
5218 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5219 } elsif ($type eq 'SOA') {
5220 next if $args{rwsoa};
5221 $host = $rr->rname.":".$rr->mname;
5222 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
5223 $soaflag = 1;
5224 } elsif ($type eq 'PTR') {
5225 $val = $rr->ptrdname;
5226 } elsif ($type eq 'MX') {
5227 $val = $rr->exchange;
5228 $distance = $rr->preference;
5229 } elsif ($type eq 'TXT') {
5230##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
5231## but don't really seem enthusiastic about it.
5232#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
5233# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
5234# char_str_list returns a list of the individual string fragments in the record
5235# txtdata returns the more useful all-in-one form (since we want to push such protocol
5236# details as far down the stack as we can)
5237# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
5238 $val = $rr->txtdata;
5239 } elsif ($type eq 'SPF') {
5240##fixme: and the same caveat here, since it is apparently a clone of ::TXT
5241 $val = $rr->txtdata;
5242 } elsif ($type eq 'AAAA') {
5243 $val = $rr->address;
5244 } elsif ($type eq 'SRV') {
5245 $val = $rr->target;
5246 $distance = $rr->priority;
5247 $weight = $rr->weight;
5248 $port = $rr->port;
5249 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: SRV records may not be bare IP addresses\n"
5250 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5251 } elsif ($type eq 'KEY') {
5252 # we don't actually know what to do with these...
5253 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
5254 } else {
5255 $val = $rr->rdatastr;
5256 # Finding a different record type is not fatal.... just problematic.
5257 # We may not be able to export it correctly.
5258 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
5259 }
5260
5261 if ($rev eq 'y' && $type ne 'SOA') {
5262 # up to this point we haven't meddled with the record's hostname part or rdata part.
5263 # for reverse records, (except SOA) we must swap the two.
5264 $host = $val;
5265 $val = $rr->name;
5266 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
5267 if ($tmpcode eq 'FAIL') {
5268 # $val did not have a valid IP value. It's syntactically valid but WTF?
5269 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
5270 } else {
5271 # $val has a valid IP value. See if we can store it as that IP value.
5272 # Note we're enumerating do-nothing cases for clarity.
5273##enhance: this is where we will implement the more subtle variations on #53
5274 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
5275 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
5276 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5277 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
5278 # case: PTR with netblock value, not IP value
5279 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
5280 # stored/displayed as dead:beef::/32 PTR foo
5281
5282## hrm. WTF is this case for, anyway? Needs testing to check the logic.
5283# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
5284# ($tmpmsg->masklen != $cidr->masklen)
5285# ) {
5286# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
5287# # and the mask does not match the zone
5288#$warnmsg .= "WTF case: $host $type $val\n";
5289# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5290
5291 } else {
5292 $val = $tmpmsg;
5293 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5294 #$val =~ s/:0$//g;
5295 }
5296 }
5297 # magic? convert * records to PTR template (not sure this actually makes sense)
5298 #if ($val =~ /^\*/) {
5299 # $val =~ s/\*\.//;
5300 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
5301 # if ($tmpcode eq 'FAIL') {
5302 # $val = "*.$val";
5303 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
5304 # } else {
5305 # $type = 'PTR template';
5306 # $val = $tmpmsg; if $tmp
5307 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5308 # }
5309 #}
5310 } # non-SOA revrec $host/$val inversion and munging
5311
5312 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5313
5314 if ($args{merge}) {
5315 if ($rev eq 'n') {
5316 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5317 my $etype;
5318 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5319 "WHERE host=? AND val=? AND type=12",
5320 undef, ($host, $val) );
5321 if ($erid) {
5322 if ($type eq 'A') { # PTR -> A+PTR
5323 $etype = 65280;
5324 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5325 }
5326 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5327 $etype = 65281;
5328 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5329 }
5330 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5331 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5332 ($domain_id, $ettl, $etype, $erid));
5333 $nrecs++;
5334 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5335 next; # while axfr_next
5336 }
5337 } # $rev eq 'n'
5338 else {
5339 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5340 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5341 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5342 undef, ($host, $val) );
5343 if ($erid) {
5344 if ($etype == 1) { # A -> A+PTR
5345 $etype = 65280;
5346 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5347 }
5348 if ($etype == 28) { # AAAA -> AAAA+PTR
5349 $etype = 65281;
5350 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5351 }
5352 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5353 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5354 ($rdns_id, $ettl, $etype, $erid));
5355 $nrecs++;
5356 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5357 next; # while axfr_next
5358 }
5359 } # $rev eq 'y'
5360 } # if $args{merge}
5361
5362 # Insert the new record
5363 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5364 $distance, $weight, $port, $ttl);
5365
5366 $nrecs++;
5367
5368 if ($type eq 'SOA') {
5369 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5370 my @tmp1 = split /:/, $host;
5371 my @tmp2 = split /:/, $val;
5372 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5373 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5374 } elsif ($logfrag) {
5375 # special case for log entries we need to meddle with a little.
5376 $logentry .= $logfrag;
5377 } else {
5378 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5379 $logentry .= " [distance $distance]" if $type eq 'MX';
5380 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5381 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5382 }
5383 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5384
5385 } # while axfr_next
5386
5387# Detect and handle delegated subzones
5388# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5389#foreach (keys %suboct) {
5390# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5391# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5392#}
5393
5394 # Overwrite SOA record
5395 if ($args{rwsoa}) {
5396 $soaflag = 1;
5397 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5398 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5399 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5400 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5401 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5402 if ($rev eq 'n') {
5403 $host =~ s/DOMAIN/$zone/g;
5404 $val =~ s/DOMAIN/$zone/g; # arguably useless
5405 } else {
5406 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5407 }
5408 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5409 }
5410 }
5411
5412 # Add standard NS records. The old one(s) should have been skipped by this point.
5413 if ($args{rwns}) {
5414 $nsflag = 1;
5415 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5416 my $sthputns = $dbh->prepare("INSERT INTO records (".
5417 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5418 $sthgetns->execute($group,$reverse_typemap{NS});
5419 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5420 if ($rev eq 'n') {
5421 $host =~ s/DOMAIN/$zone/g;
5422 $val =~ s/DOMAIN/$zone/g; #hmm.
5423 } else {
5424 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5425 $val =~ s/ZONE/$cidr/g;
5426 }
5427 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5428 }
5429 }
5430
5431 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5432 die "Bad zone: No SOA record!\n" if !$soaflag;
5433 die "Bad zone: No NS records!\n" if !$nsflag;
5434
5435 $dbh->commit;
5436
5437 };
5438
5439 if ($@) {
5440 my $msg = $@;
5441 eval { $dbh->rollback; };
5442 return ('FAIL',$msg." $warnmsg");
5443 } else {
5444 return ('WARN', $warnmsg) if $warnmsg;
5445 return ('OK',"Imported OK");
5446 }
5447
5448 # it should be impossible to get here.
5449 return ('WARN',"OOOK!");
5450} # end importAXFR()
5451
5452
5453## DNSDB::importBIND()
5454sub importBIND {
5455} # end importBIND()
5456
5457
5458## DNSDB::import_tinydns()
5459sub import_tinydns {
5460} # end import_tinydns()
5461
5462
5463## DNSDB::export()
5464# Export the DNS database, or a part of it
5465# Takes a string indicating the export type, plus optional arguments depending on type
5466# Writes zone data to targets as appropriate for type
5467sub export {
5468 my $self = shift;
5469 my $target = shift;
5470
5471 if ($target eq 'tiny') {
5472 eval {
5473 $self->__export_tiny(@_);
5474 };
5475 if ($@) {
5476 $errstr = $@;
5477 return undef;
5478 }
5479 }
5480# elsif ($target eq 'foo') {
5481# __export_foo(@_);
5482#}
5483# etc
5484
5485 return 1;
5486} # end export()
5487
5488
5489## DNSDB::__export_tiny
5490# Internal sub to implement tinyDNS (compatible) export
5491# Takes filehandle to write export to, optional argument(s)
5492# to determine which data gets exported
5493sub __export_tiny {
5494 my $self = shift;
5495 my $dbh = $self->{dbh};
5496 my $datafile = shift;
5497 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5498
5499##fixme: slurp up further options to specify particular zone(s) to export
5500
5501##fixme: fail if $datafile isn't an open, writable file
5502
5503 # Error check - does the cache dir exist, if we're using one?
5504 if ($self->{usecache}) {
5505 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5506 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5507 die "$self->{exportcache} must be both readable and writable\n"
5508 if !-r $self->{exportcache} || !-w $self->{exportcache};
5509 }
5510
5511 # easy case - export all evarything
5512 # not-so-easy case - export item(s) specified
5513 # todo: figure out what kind of list we use to export items
5514
5515# raw packet in unknown format: first byte indicates length
5516# of remaining data, allows up to 255 raw bytes
5517
5518 # note: the only I/O failures we seem to be able to actually catch
5519 # here are "closed filehandle" errors. we're probably not writing
5520 # enough data at this point to properly trigger an "out of space"
5521 # error. :/
5522 eval {
5523 use warnings FATAL => ('io');
5524 # Locations/views - worth including in the caching setup?
5525 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5526 foreach my $location (keys %$lochash) {
5527 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5528 $ipprefix =~ s/\s+//g;
5529 $ipprefix = new NetAddr::IP $ipprefix;
5530##fixme: how to handle IPv6?
5531next if $ipprefix->{isv6};
5532 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5533 if ($ipprefix->masklen <= 8) {
5534 foreach ($ipprefix->split(8)) {
5535 my $tmp = $_->addr;
5536 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5537 print $datafile "%$location:$tmp\n";
5538 }
5539 } elsif ($ipprefix->masklen <= 16) {
5540 foreach ($ipprefix->split(16)) {
5541 my $tmp = $_->addr;
5542 $tmp =~ s/\.\d+\.\d+$//;
5543 print $datafile "%$location:$tmp\n";
5544 }
5545 } elsif ($ipprefix->masklen <= 24) {
5546 foreach ($ipprefix->split(24)) {
5547 my $tmp = $_->addr;
5548 $tmp =~ s/\.\d+$//;
5549 print $datafile "%$location:$tmp\n";
5550 }
5551 } else {
5552 foreach ($ipprefix->split(32)) {
5553 print $datafile "%$location:".$_->addr."\n";
5554 }
5555 }
5556 }
5557 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5558 }
5559 };
5560 if ($@) {
5561 die "Error writing locations to master file: $@, $!\n";
5562 }
5563
5564 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5565 my %recflags;
5566
5567# For reasons unknown, we can't sanely UNION these statements. Feh.
5568# Supposedly it should work though (note last 3 lines):
5569## PG manual
5570#UNION Clause
5571#
5572#The UNION clause has this general form:
5573#
5574# select_statement UNION [ ALL ] select_statement
5575#
5576#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5577#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5578#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5579 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5580 "FROM records WHERE rdns_id=? AND type=6");
5581 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5582 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5583 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5584 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5585 "ORDER BY masklen(revnet) DESC, rdns_id");
5586 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5587 $revsth->execute();
5588 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5589##fixme: need to find a way to block opening symlinked files without introducing a race.
5590# O_NOFOLLOW
5591# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5592# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5593# still be followed.
5594# but that doesn't help other platforms. :/
5595 my $tmpzone = NetAddr::IP->new($revzone);
5596##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5597## (eg /20 vs /24, starting on .0.0)
5598 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5599 my $cachefile = "$self->{exportcache}/$cz";
5600 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5601 eval {
5602
5603 # write fresh records if:
5604 # - we are not using the cache
5605 # - force_refresh is set
5606 # - the zone has changed
5607 # - the cache file does not exist
5608 # - the cache file is empty
5609 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5610 if ($self->{usecache}) {
5611 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5612 $zonefilehandle = *ZONECACHE;
5613 }
5614
5615 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5616 $soasth->execute($revid);
5617 my (@zsoa) = $soasth->fetchrow_array();
5618 $self->_printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5619 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5620
5621 $recsth->execute($revid);
5622 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5623
5624 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5625 = $recsth->fetchrow_array) {
5626 next if $recflags{$recid};
5627
5628 # Check for out-of-zone data
5629 if ($val =~ /\.arpa$/) {
5630 # val is non-IP
5631 if ($val !~ /$fullzone$/) {
5632 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5633 next;
5634 }
5635 } else {
5636 my $ipval = new NetAddr::IP $val;
5637 if (!$tmpzone->contains($ipval)) {
5638 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5639 next;
5640 }
5641 } # is $val a raw .arpa name?
5642
5643 # Spaces are evil.
5644 $val =~ s/^\s+//;
5645 $val =~ s/\s+$//;
5646 if ($typemap{$type} ne 'TXT') {
5647 # Leading or trailng spaces could be legit in TXT records.
5648 $host =~ s/^\s+//;
5649 $host =~ s/\s+$//;
5650 }
5651
5652 $self->_printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5653 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5654
5655 $recflags{$recid} = 1;
5656
5657 } # while ($recsth)
5658
5659 if ($self->{usecache}) {
5660 close ZONECACHE; # force the file to be written
5661 # catch obvious write errors that leave an empty temp file
5662 if (-s $tmpcache) {
5663 rename $tmpcache, $cachefile
5664 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5665 }
5666 }
5667
5668 } # if $changed or cache filesize is 0
5669
5670 };
5671 if ($@) {
5672 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5673 # error! something borked, and we should be able to fall back on the old cache file
5674 # report the error, somehow.
5675 } else {
5676 # mark zone as unmodified. Only do this if no errors, that way
5677 # export failures should recover a little more automatically.
5678 $zonesth->execute($revid);
5679 }
5680
5681 if ($self->{usecache}) {
5682 # We've already made as sure as we can that a cached zone file is "good",
5683 # although possibly stale/obsolete due to errors creating a new one.
5684 eval {
5685 open CACHE, "<$cachefile" or die $!;
5686 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5687 close CACHE;
5688 };
5689 die $@ if $@;
5690 }
5691
5692 } # while ($revsth)
5693
5694 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5695 "FROM records WHERE domain_id=? AND type=6");
5696 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5697 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5698# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5699 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5700 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5701 $domsth->execute();
5702 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5703##fixme: need to find a way to block opening symlinked files without introducing a race.
5704# O_NOFOLLOW
5705# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5706# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5707# still be followed.
5708# but that doesn't help other platforms. :/
5709 my $cachefile = "$self->{exportcache}/$dom";
5710 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5711 eval {
5712
5713 # write fresh records if:
5714 # - we are not using the cache
5715 # - force_refresh is set
5716 # - the zone has changed
5717 # - the cache file does not exist
5718 # - the cache file is empty
5719 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5720 if ($self->{usecache}) {
5721 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5722 $zonefilehandle = *ZONECACHE;
5723 }
5724
5725 # need to fetch this separately so the SOA comes first in the flatfile....
5726 # Just In Case we need/want to reimport from the flatfile later on.
5727 $soasth->execute($domid);
5728 my (@zsoa) = $soasth->fetchrow_array();
5729 $self->_printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5730 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5731
5732 $recsth->execute($domid);
5733 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5734 next if $recflags{$recid};
5735
5736 # Check for out-of-zone data
5737 $host = $dom if $host eq '@';
5738 if ($host !~ /$dom$/i) {
5739 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5740 next;
5741 }
5742
5743 # Spaces are evil.
5744 $host =~ s/^\s+//;
5745 $host =~ s/\s+$//;
5746 if ($typemap{$type} ne 'TXT') {
5747 # Leading or trailng spaces could be legit in TXT records.
5748 $val =~ s/^\s+//;
5749 $val =~ s/\s+$//;
5750 }
5751
5752 $self->_printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5753 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5754
5755 $recflags{$recid} = 1;
5756
5757 } # while ($recsth)
5758
5759
5760 if ($self->{usecache}) {
5761 close ZONECACHE; # force the file to be written
5762 # catch obvious write errors that leave an empty temp file
5763 if (-s $tmpcache) {
5764 rename $tmpcache, $cachefile
5765 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5766 }
5767 }
5768
5769 } # if $changed or cache filesize is 0
5770
5771 };
5772 if ($@) {
5773 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5774 # error! something borked, and we should be able to fall back on the old cache file
5775 # report the error, somehow.
5776 } else {
5777 # mark domain as unmodified. Only do this if no errors, that way
5778 # export failures should recover a little more automatically.
5779 $zonesth->execute($domid);
5780 }
5781
5782 if ($self->{usecache}) {
5783 # We've already made as sure as we can that a cached zone file is "good",
5784 # although possibly stale/obsolete due to errors creating a new one.
5785 eval {
5786 open CACHE, "<$cachefile" or die $!;
5787 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
5788 close CACHE;
5789 };
5790 die $@ if $@;
5791 }
5792
5793 } # while ($domsth)
5794
5795 return 1;
5796} # end __export_tiny()
5797
5798
5799# Utility sub for __export_tiny above
5800sub _printrec_tiny {
5801 my $self = shift;
5802 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
5803 $loc, $stamp, $expires, $stampactive) = @_;
5804
5805 $loc = '' if !$loc; # de-nullify - just in case
5806##fixme: handle case of record-with-location-that-doesn't-exist better.
5807# note this currently fails safe (tested) - records with a location that
5808# doesn't exist will not be sent to any client
5809# $loc = '' if !$lochash->{$loc};
5810
5811
5812## Records that are valid only before or after a set time
5813
5814# record due to expire sometime is the complex case. we don't want to just
5815# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
5816# is one day instead of the SOA minttl as BIND might do.
5817
5818# consider the case where a record is set to expire a week ahead, but the next
5819# day later you want to change it NOW (or as NOWish as you get with your DNS
5820# management practice). but now you're stuck, because someone, somewhere,
5821# has just done a lookup before your latest change was published, and they'll
5822# be caching that old, broken record for 1 day instead of your zone default
5823# TTL.
5824
5825# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
5826# to still have the expiry happen as scheduled, but we need to find some
5827# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
5828# but we need info on the export frequency.
5829
5830# export the normal, non-expiring record up until $stamp-<guesstimate>, then
5831# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
5832# takes over TTL management.
5833
5834 if ($stampactive) {
5835 if ($expires) {
5836 # record expires at $stamp; decide if we need to keep the TTL and ignore
5837 # the stamp for a time or if we need to change the TTL to 0 and convert
5838 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
5839# extra hack, optimally needs more knowledge of data export frequency
5840# smack the idiot customer who insists on 0 TTLs; they can suck up and
5841# deal with a 10-minute TTL. especially on scheduled changes. note this
5842# should be (export freq * 2), but we don't know the actual export frequency.
5843$ttl = 300 if $ttl == 0; #hack phtui
5844 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
5845 if ((time() + $ahead) < $stamp) {
5846 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
5847 $stamp = '';
5848 } else {
5849 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
5850 $ttl = 0;
5851 $stamp = unixtai64($stamp);
5852 $stamp =~ s/\@//;
5853 }
5854 } else {
5855 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
5856 $stamp = unixtai64($stamp);
5857 $stamp =~ s/\@//;
5858 }
5859 } else {
5860 # flag for active timestamp is false; don't actually put a timestamp in the output
5861 $stamp = '';
5862 }
5863
5864 # support tinydns' auto-TTL
5865 $ttl = '' if $ttl == -1;
5866# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
5867# NS 259200 => 3d
5868# all others 86400 => 1d
5869
5870 if ($revrec eq 'y') {
5871 $val = $zone if $val eq '@';
5872 } else {
5873 $host = $zone if $host eq '@';
5874 }
5875
5876 ## Convert a bare number into an octal-coded pair of octets.
5877 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
5878 sub octalize {
5879 my $tmp = shift;
5880 my $srctype = shift || 'h'; # default assumes hex string
5881 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
5882 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
5883 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
5884 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);
5885 }
5886
5887 # Utility sub-sub for reverse records; with "any-record-in-any-zone"
5888 # we may need to do extra processing on $val to make it publishable.
5889 sub __revswap {
5890 my $host = shift;
5891 my $val = shift;
5892 return ($val, $host) if $val =~ /\.arpa/;
5893 $val = new NetAddr::IP $val;
5894 my $newval = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5895 return ($newval, $host);
5896 }
5897
5898## WARNING: This works to export even the whole Internet's worth of IP space...
5899## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
5900## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
5901## 0/0 is estimated to take ~54 hours and ~256G of disk
5902## RAM usage depends on how many non-template entries you have in the set.
5903## This should probably be done on record addition rather than export; large blocks may need to be done in a
5904## forked process
5905 sub __publish_subnet {
5906 my $obj = shift; # *sigh* need to pass in the DNSDB object so we can read a couple of options
5907 my $sub = shift;
5908 my $recflags = shift;
5909 my $hpat = shift;
5910 my $fh = shift;
5911 my $ttl = shift;
5912 my $stamp = shift;
5913 my $loc = shift;
5914 my $zone = new NetAddr::IP shift;
5915 my $ptronly = shift || 0;
5916
5917 # do this conversion once, not (number-of-ips-in-subnet) times
5918 my $arpabase = _ZONE($zone, 'ZONE.in-addr.arpa', 'r', '.');
5919
5920 my $iplist = $sub->splitref(32);
5921 foreach (@$iplist) {
5922 my $ip = $_->addr;
5923 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
5924 my $lastoct = (split /\./, $ip)[3];
5925 next if $ip =~ /\.0$/ && $obj->{template_skip_0};
5926 next if $ip =~ /\.255$/ && $obj->{template_skip_255};
5927 next if $$recflags{$ip}; # && $self->{skip_bcast_255}
5928 $$recflags{$ip}++;
5929 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
5930 my $rec = $hpat; # start fresh with the template for each IP
5931##fixme: there really isn't a good way to handle sub-/24 zones here. This way at least
5932# seems less bad than some alternatives.
5933 _template4_expand(\$rec, $ip);
5934 if ($ptronly || $zone->masklen > 24) {
5935 print $fh "^$lastoct.$arpabase:$rec:$ttl:$stamp:$loc\n" or die $!;
5936 if (!$ptronly) {
5937 # print a separate A record. Arguably we could use an = record here instead.
5938 print $fh "+$rec:$ip:$ttl:$stamp:$loc\n" or die $!;
5939 }
5940 } else {
5941 print $fh "=$rec:$ip:$ttl:$stamp:$loc\n" or die $!;
5942 }
5943 }
5944 }
5945
5946## And now the meat.
5947
5948##fixme? append . to all host/val hostnames
5949#print "debug: rawdata: $host $typemap{$type} $val\n";
5950
5951 if ($typemap{$type} eq 'SOA') {
5952 # host contains pri-ns:responsible
5953 # val is abused to contain refresh:retry:expire:minttl
5954##fixme: "manual" serial vs tinydns-autoserial
5955 # let's be explicit about abusing $host and $val
5956 my ($email, $primary) = (split /:/, $host)[0,1];
5957 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
5958 if ($revrec eq 'y') {
5959##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
5960# what about v6?
5961# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
5962# anyone who says they need sub-nibble v6 delegations, at this time, needs their head examined.
5963 $zone = NetAddr::IP->new($zone);
5964 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5965 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
5966 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
5967 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5968 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5969 or die $!;
5970 }
5971 return; # skips "default" bits just below
5972 }
5973 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5974 }
5975 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5976 or die $!;
5977
5978 } elsif ($typemap{$type} eq 'A') {
5979
5980 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
5981 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
5982
5983 } elsif ($typemap{$type} eq 'NS') {
5984
5985 if ($revrec eq 'y') {
5986 $val = NetAddr::IP->new($val);
5987 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5988 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
5989 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
5990 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5991 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5992 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5993 $$recflags{$szone2} = $val->masklen;
5994 }
5995 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
5996 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
5997 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
5998 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5999 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6000 $$recflags{$szone2} = $val->masklen;
6001 }
6002 } else {
6003 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6004 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6005 $$recflags{$val2} = $val->masklen;
6006 }
6007 } else {
6008 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
6009 }
6010
6011 } elsif ($typemap{$type} eq 'AAAA') {
6012
6013 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6014 my $altgrp = 0;
6015 my @altconv;
6016 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
6017 foreach (split /:/, $val) {
6018 if (/^$/) {
6019 # flag blank entry; this is a series of 0's of (currently) unknown length
6020 $altconv[$altgrp++] = 's';
6021 } else {
6022 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
6023 $altconv[$altgrp++] = octalize($_)
6024 }
6025 }
6026 my $prefix = ":$host:28:";
6027 foreach my $octet (@altconv) {
6028 # if not 's', output
6029 $prefix .= $octet unless $octet =~ /^s$/;
6030 # if 's', output (9-array length)x literal '\000\000'
6031 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
6032 }
6033 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
6034
6035 } elsif ($typemap{$type} eq 'MX') {
6036
6037 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6038 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
6039
6040 } elsif ($typemap{$type} eq 'TXT') {
6041
6042 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6043##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
6044 $val =~ s/:/\\072/g; # may need to replace other symbols
6045 print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
6046
6047# by-hand TXT
6048#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
6049#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
6050#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
6051
6052#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
6053#: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
6054
6055# very long TXT record as brought in by axfr-get
6056# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
6057# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
6058#:longtxt.deepnet.cx:16:
6059#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
6060#\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.
6061#\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.
6062#:3600
6063
6064 } elsif ($typemap{$type} eq 'CNAME') {
6065
6066 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6067 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
6068
6069 } elsif ($typemap{$type} eq 'SRV') {
6070
6071 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6072
6073 # data is two-byte values for priority, weight, port, in that order,
6074 # followed by length/string data
6075
6076 my $prefix = ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
6077
6078 $val .= '.' if $val !~ /\.$/;
6079 foreach (split /\./, $val) {
6080 $prefix .= sprintf "\\%0.3o%s", length($_), $_ or die $!;
6081 }
6082 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
6083
6084 } elsif ($typemap{$type} eq 'RP') {
6085
6086 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6087 # RP consists of two mostly free-form strings.
6088 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
6089 # The second is the "hostname" of a TXT record with more info.
6090 my $prefix = ":$host:17:";
6091 my ($who,$what) = split /\s/, $val;
6092 foreach (split /\./, $who) {
6093 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
6094 }
6095 $prefix .= '\000';
6096 foreach (split /\./, $what) {
6097 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
6098 }
6099 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
6100
6101 } elsif ($typemap{$type} eq 'PTR') {
6102
6103 $$recflags{$val}++;
6104 if ($revrec eq 'y') {
6105
6106 if ($val =~ /\.arpa$/) {
6107 # someone put in the formal .arpa name. humor them.
6108 print $datafile "^$val:$host:$ttl:$stamp:$loc\n" or die $!;
6109 } else {
6110 $zone = NetAddr::IP->new($zone);
6111 if (!$zone->{isv6} && $zone->masklen > 24) {
6112 # sub-octet v4 zone
6113 ($val) = ($val =~ /\.(\d+)$/);
6114 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
6115 ":$host:$ttl:$stamp:$loc\n" or die $!;
6116 } else {
6117 # not going to care about strange results if $val is not an IP value and is resolveable in DNS
6118 $val = NetAddr::IP->new($val);
6119 print $datafile "^".
6120 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
6121 ":$host:$ttl:$stamp:$loc\n" or die $!;
6122 }
6123 } # non-".arpa" $val
6124
6125 } else {
6126 # PTRs in forward zones are less bizarre and insane than some other record types
6127 # in reverse zones... OTOH we can't validate them any which way, so we cross our
6128 # fingers and close our eyes and make it Someone Else's Problem.
6129 print $datafile "^$host:$val:$ttl:$stamp:$loc\n" or die $!;
6130 }
6131
6132 } elsif ($type == 65280) { # A+PTR
6133
6134 $$recflags{$val}++;
6135 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
6136
6137 } elsif ($type == 65281) { # AAAA+PTR
6138
6139 $$recflags{$val}++;
6140 # treat these as two separate records. since tinydns doesn't have
6141 # a native combined type, we have to create them separately anyway.
6142 # print both; a dangling record is harmless, and impossible via web
6143 # UI anyway
6144 $self->_printrec_tiny($datafile,$recid,'n',$recflags, $self->domainName($self->_hostparent($host)),
6145 $host, 28, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
6146 $self->_printrec_tiny($datafile, $recid, 'y', $recflags, $zone,
6147 $host, 12, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
6148
6149##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
6150# type 6 is for AAAA+PTR, type 3 is for AAAA
6151
6152 } elsif ($type == 65282) { # PTR template
6153
6154 # only useful for v4 with standard DNS software, since this expands all
6155 # IPs in $zone (or possibly $val?) with autogenerated records
6156 $val = NetAddr::IP->new($val);
6157 return if $val->{isv6};
6158
6159 if ($val->masklen <= 16) {
6160 foreach my $sub ($val->split(16)) {
6161 $self->__publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 1);
6162 }
6163 } else {
6164 $self->__publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 1);
6165 }
6166
6167 } elsif ($type == 65283) { # A+PTR template
6168
6169 $val = NetAddr::IP->new($val);
6170 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
6171 return if $val->{isv6};
6172
6173 if ($val->masklen <= 16) {
6174 foreach my $sub ($val->split(16)) {
6175 $self->__publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 0);
6176 }
6177 } else {
6178 $self->__publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 0);
6179 }
6180
6181 } elsif ($type == 65284) { # AAAA+PTR template
6182 # Stub for completeness. Could be exported to DNS software that supports
6183 # some degree of internal automagic in generic-record-creation
6184 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
6185
6186 } elsif ($type == 65285) { # Delegation
6187 # This is intended for reverse zones, but may prove useful in forward zones.
6188
6189 # All delegations need to create one or more NS records. The NS record handler knows what to do.
6190 $self->_printrec_tiny($datafile,$recid,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
6191 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
6192 if ($revrec eq 'y') {
6193 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
6194 # to redirect all of the individual IP lookups as well.
6195 # OR
6196 # create NS records for each IP
6197 # Not sure how this would actually resolve if a /24 or larger was delegated
6198 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
6199 my $dblock = NetAddr::IP->new($val);
6200 if (!$dblock->{isv6} && $dblock->masklen > 24) {
6201 my @subs = $dblock->split;
6202 foreach (@subs) {
6203 next if $$recflags{"$_"};
6204 my ($oct) = ($_->addr =~ /(\d+)$/);
6205 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
6206 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
6207 $$recflags{"$_"}++;
6208 }
6209 }
6210 }
6211
6212##
6213## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
6214##
6215
6216 } elsif ($type == 44) { # SSHFP
6217
6218 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6219
6220 my ($algo,$fpt,$fp) = split /\s+/, $val;
6221
6222 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
6223 while (my ($byte) = ($fp =~ /^(..)/) ) {
6224 $rec .= sprintf "\\%0.3o", hex($byte);
6225 $fp =~ s/^..//;
6226 }
6227 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
6228
6229 } else {
6230 # raw record. we don't know what's in here, so we ASS-U-ME the user has
6231 # put it in correctly, since either the user is messing directly with the
6232 # database, or the record was imported via AXFR
6233 # <split by char>
6234 # convert anything not a-zA-Z0-9.- to octal coding
6235
6236##fixme: add flag to export "unknown" record types - note we'll probably end up
6237# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
6238 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
6239
6240 } # record type if-else
6241
6242} # end _printrec_tiny()
6243
6244
6245## DNSDB::mailNotify()
6246# Sends notification mail to recipients regarding a DNSDB operation
6247sub mailNotify {
6248 my $self = shift;
6249 my $dbh = $self->{dbh};
6250 my ($subj,$message) = @_;
6251
6252 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
6253
6254 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
6255
6256 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
6257
6258 $mailer->mail($mailsender);
6259 $mailer->to($self->{mailnotify});
6260 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
6261 "To: <$self->{mailnotify}>\n",
6262 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
6263 "Subject: $subj\n",
6264 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
6265 "Organization: $self->{orgname}\n",
6266 "\n$message\n");
6267 $mailer->quit;
6268}
6269
6270# shut Perl up
62711;
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