source: trunk/DNSDB.pm@ 707

Last change on this file since 707 was 707, checked in by Kris Deugau, 9 years ago

/trunk

SQL tweaks on domain/revzone creation in r704 to permit zones to be
duplicated in different locations/views managed to get committed
wrong; fixing.

  • Property svn:keywords set to Date Rev Author Id
File size: 241.9 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 707 2016-03-07 21:58:52Z 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 # %blank% skips the IP when expanding a template record
745 return ('FAIL', $errstr)
746 unless _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) ||
747 lc(${$args{host}}) eq '%blank%';
748 } else { # revrec ne 'y'
749 # Fetch the domain and append if the passed hostname isn't within it.
750 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
751 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
752 # Validate hostname and target for form
753 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
754 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
755 }
756 }
757
758# Multiple PTR records do NOT generally do what most people believe they do,
759# and tend to fail in the most awkward way possible. Check and warn.
760
761 my $chkbase = ${$args{val}};;
762 my $hostcol = 'val'; # Reverse zone hostnames are stored "backwards"
763 if ($args{revrec} eq 'n') { # PTRs in forward zones should be rare.
764 $chkbase = ${$args{host}};
765 $hostcol = 'host';
766 }
767 my @checkvals = ($chkbase);
768 if ($chkbase =~ /,/) {
769 # push . and :: variants into checkvals if $chkbase has ,
770 my $tmp;
771 ($tmp = $chkbase) =~ s/,/./;
772 push @checkvals, $tmp;
773 ($tmp = $chkbase) =~ s/,/::/;
774 push @checkvals, $tmp;
775 }
776
777 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE $hostcol = ?");
778 foreach my $checkme (@checkvals) {
779 if ($args{update}) {
780 # $args{update} contains the ID of the record being updated. If the list of records that matches
781 # the new hostname specification doesn't include this, the change effectively adds a new PTR that's
782 # the same as one or more existing ones.
783 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
784 " WHERE val = ?", undef, ($checkme)) };
785 $warnflag .= "PTR record for $checkme already exists; adding another will probably not do what you want"
786 if @ptrs && (!grep /^$args{update}$/, @ptrs);
787 } else {
788 # New record. Always warn if a PTR exists
789 # Don't warn when a matching A record exists tho
790 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
791 " WHERE $hostcol = ? AND (type=12 OR type=65280 OR type=65281)", undef, ($checkme));
792 $warnflag .= "PTR record for $checkme already exists; adding another will probably not do what you want"
793 if $ptrcount;
794 }
795 }
796
797 return ('WARN',$warnflag) if $warnflag;
798
799 return ('OK','OK');
800} # done PTR record
801
802# MX record
803sub _validate_15 {
804 my $self = shift;
805 my $dbh = $self->{dbh};
806
807 my %args = @_;
808
809# only for strict type restrictions
810# return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
811
812 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
813 ${$args{dist}} =~ s/\s*//g;
814 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
815
816 ${$args{fields}} = "distance,";
817 push @{$args{vallist}}, ${$args{dist}};
818
819 if ($args{revrec} eq 'n') {
820 # MX target check - IP addresses not allowed. Must be a more or less well-formed hostname.
821 return ('FAIL', "MX records cannot point directly to an IP address")
822 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
823
824 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
825 # or the intended parent domain for live records.
826 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
827 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
828 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
829 } else {
830 # MX target check - IP addresses not allowed. Must be a more or less well-formed hostname.
831 return ('FAIL', "MX records cannot point directly to an IP address")
832 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
833
834 # MX records in reverse zones get stricter treatment. The UI bars adding them in
835 # reverse record sets, but we "need" to allow editing existing ones. And we'll allow
836 # editing them if some loon manually munges one into a default reverse record set.
837 if ($args{defrec} eq 'n') {
838 # Get the revzone, so we can see if ${$args{val}} is in that zone
839 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
840 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
841 }
842
843##enhance or ##fixme
844# convert well-formed .arpa names to IP addresses to match old "strict" validation design
845 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
846 ${$args{val}} =~ /\.arpa$/;
847
848##enhance: Look up the passed value to see if it exists. Ooo, fancy.
849 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
850
851 }
852
853 return ('OK','OK');
854} # done MX record
855
856# TXT record
857sub _validate_16 {
858 my $self = shift;
859
860 my %args = @_;
861
862 if ($args{revrec} eq 'n') {
863 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
864 # or the intended parent domain for live records.
865 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
866 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
867 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
868 } else {
869 # We don't coerce reverse "hostnames" into the zone, mainly because we store most sane
870 # records as IP values, not .arpa names.
871 if ($args{defrec} eq 'n') {
872 # Get the revzone, so we can see if ${$args{val}} is in that zone
873 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
874 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
875 }
876
877##enhance or ##fixme
878# convert well-formed .arpa names to IP addresses to match old "strict" validation design
879 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
880 ${$args{val}} =~ /\.arpa$/;
881 }
882
883 # Could arguably put a WARN return here on very long (>512) records
884 return ('OK','OK');
885} # done TXT record
886
887# RP record
888sub _validate_17 {
889 # Probably have to validate these separately some day. Call _validate_16() above since
890 # they're otherwise very similar
891 return _validate_16(@_);
892} # done RP record
893
894# AAAA record
895# Almost but not quite an exact duplicate of A record
896sub _validate_28 {
897 my $self = shift;
898 my $dbh = $self->{dbh};
899
900 my %args = @_;
901
902# only for strict type restrictions
903# return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
904
905 if ($args{revrec} eq 'y') {
906 # Get the revzone, so we can see if ${$args{val}} is in that zone
907 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
908
909 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
910
911 # ${$args{val}} is either a valid IP or a string ending with the .arpa zone name;
912 # now check if it's a well-formed FQDN
913 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
914 ${$args{val}} =~ /\.arpa$/;
915
916 # Check IP is well-formed, and that it's a v4 address
917 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
918 return ('FAIL',"AAAA record must be a valid IPv6 address")
919 unless ${$args{host}} =~ /^[a-fA-F0-9:]+$/;
920 $args{addr} = new NetAddr::IP ${$args{host}};
921 return ('FAIL',"AAAA record must be a valid IPv6 address")
922 unless $args{addr} && $args{addr}->{isv6};
923 # coerce IP/value to normalized form for storage
924 ${$args{host}} = $args{addr}->addr;
925
926 # I'm just going to ignore the utterly barmy idea of an AAAA record in the *default*
927 # records for a reverse zone; it's bad enough to find one in funky legacy data.
928
929 } else {
930 # revrec ne 'y'
931
932 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
933 # or the intended parent domain for live records.
934 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
935 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/i);
936
937 # Check if it's a proper formal .arpa name for an IP, and renormalize it to the IP
938 # value if so. Done mainly for symmetry with PTR/AAAA+PTR, and saves a conversion on export.
939 if (${$args{val}} =~ /\.arpa$/) {
940 my ($code,$tmp) = _zone2cidr(${$args{val}});
941 if ($code ne 'FAIL') {
942 ${$args{val}} = $tmp->addr;
943 $args{addr} = $tmp;
944 }
945 }
946 # Check IP is well-formed, and that it's a v6 address
947 return ('FAIL',"AAAA record must be a valid IPv6 address")
948 unless ${$args{val}} =~ /^[a-fA-F0-9:]+$/;
949 $args{addr} = new NetAddr::IP ${$args{val}};
950 return ('FAIL',"AAAA record must be a valid IPv6 address")
951 unless $args{addr} && $args{addr}->{isv6};
952 # coerce IP/value to normalized form for storage
953 ${$args{val}} = $args{addr}->addr;
954 }
955
956 return ('OK','OK');
957} # done AAAA record
958
959# SRV record
960sub _validate_33 {
961 my $self = shift;
962 my $dbh = $self->{dbh};
963
964 my %args = @_;
965
966# Not absolutely true but WTF use is an SRV record for a reverse zone?
967# return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
968
969 # Key additional record parts. Always required.
970 return ('FAIL',"Distance, port and weight are required for SRV records")
971 unless defined(${$args{weight}}) && defined(${$args{port}}) && defined(${$args{dist}});
972 ${$args{dist}} =~ s/\s*//g;
973 ${$args{weight}} =~ s/\s*//g;
974 ${$args{port}} =~ s/\s*//g;
975 return ('FAIL',"Distance, port and weight are required, and must be numeric")
976 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
977
978 ${$args{fields}} = "distance,weight,port,";
979 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
980
981 if ($args{revrec} eq 'n') {
982 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
983 # or the intended parent domain for live records.
984 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
985 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
986
987##enhance: Rejig so that we can pass back a WARN red flag, instead of
988# hard-failing, since it seems that purely from the DNS record perspective,
989# SRV records without underscores are syntactically valid
990 # Not strictly true, but SRV records not following this convention won't be found.
991 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
992 unless ${$args{host}} =~ /^_[A-Za-z-]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
993
994 # SRV target check - IP addresses not allowed. Must be a more or less well-formed hostname.
995 return ('FAIL', "SRV records cannot point directly to an IP address")
996 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
997 } else {
998 # hm. we can't do anything sane with IP values here; part of the record data is in
999 # fact encoded in the "hostname". enforce .arpa names? OTOH, SRV records in a reverse
1000 # zone are pretty silly.
1001
1002##enhance: Rejig so that we can pass back a WARN red flag, instead of
1003# hard-failing, since it seems that purely from the DNS record perspective,
1004# SRV records without underscores are syntactically valid
1005 # Not strictly true, but SRV records not following this convention won't be found.
1006 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
1007 unless ${$args{val}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
1008
1009 # SRV target check - IP addresses not allowed. Must be a more or less well-formed hostname.
1010 return ('FAIL', "SRV records cannot point directly to an IP address")
1011 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
1012
1013 # SRV records in reverse zones get stricter treatment. The UI bars adding them in
1014 # reverse record sets, but we "need" to allow editing existing ones. And we'll allow
1015 # editing them if some loon manually munges one into a default reverse record set.
1016 if ($args{defrec} eq 'n') {
1017 # Get the revzone, so we can see if ${$args{val}} is in that zone
1018 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
1019 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
1020 }
1021
1022##enhance or ##fixme
1023# convert well-formed .arpa names to IP addresses to match old "strict" validation design
1024 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
1025 ${$args{val}} =~ /\.arpa$/;
1026
1027##enhance: Look up the passed value to see if it exists. Ooo, fancy.
1028 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
1029
1030 }
1031
1032 return ('OK','OK');
1033} # done SRV record
1034
1035# Now the custom types
1036
1037# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
1038sub _validate_65280 {
1039 my $self = shift;
1040 my $dbh = $self->{dbh};
1041
1042 my %args = @_;
1043
1044 my $code = 'OK';
1045 my $msg = 'OK';
1046
1047 if ($args{defrec} eq 'n') {
1048 # live record; revrec determines whether we validate the PTR or A component first.
1049
1050 # Fail early on non-IP gibberish in ${$args{val}}. Arguably .arpa names might be acceptable
1051 # but that gets stupid in forward zones, since these records are shared.
1052 return ('FAIL', "$typemap{${$args{rectype}}} record must be a valid IPv4 address")
1053 if ${$args{rectype}} == 65280 && ${$args{val}} !~ m{^\d+\.\d+\.\d+\.\d+(?:/\d+)?$};
1054 return ('FAIL', "$typemap{${$args{rectype}}} record must be a valid IPv6 address")
1055 if ${$args{rectype}} == 65281 && ${$args{val}} !~ m{^[a-fA-F0-9:]+(?:/\d+)?$};
1056 # If things are not OK, this should prevent Stupid in the error log.
1057 $args{addr} = new NetAddr::IP ${$args{val}}
1058 or return ('FAIL', "$typemap{${$args{rectype}}} record must be a valid IPv".
1059 (${$args{rectype}} == 65280 ? '4' : '6')." address");
1060 ${$args{val}} = $args{addr}->addr;
1061
1062 if ($args{revrec} eq 'y') {
1063 ($code,$msg) = $self->_validate_12(%args);
1064 return ($code,$msg) if $code eq 'FAIL';
1065
1066 # check A+PTR is really v4
1067 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
1068 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
1069 # check AAAA+PTR is really v6
1070 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
1071 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
1072
1073 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
1074 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1075 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1076 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1077 $msg .= "\n$addmsg" if $code eq 'WARN';
1078 $msg = $addmsg if $code eq 'OK';
1079 ${$args{rectype}} = $reverse_typemap{PTR};
1080 return ('WARN', $msg);
1081 }
1082
1083 # Add domain ID to field list and values
1084 ${$args{fields}} .= "domain_id,";
1085 push @{$args{vallist}}, ${$args{domid}};
1086
1087 } else {
1088 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
1089 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
1090 return ($code,$msg) if $code eq 'FAIL';
1091
1092 # Check if the requested reverse zone exists - note, an IP fragment won't
1093 # work here since we don't *know* which parent to put it in.
1094 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1095 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1096 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1097 if (!$revid) {
1098 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
1099 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
1100 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1101 return ('WARN', $msg);
1102 }
1103
1104 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
1105 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
1106 if ($args{update}) {
1107 # Record update. There should usually be an existing PTR (the record being updated)
1108 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
1109 " WHERE val = ?", undef, (${$args{val}})) };
1110 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
1111 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
1112 $code = 'WARN';
1113 }
1114 } else {
1115 # New record. Always warn if a PTR exists
1116 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
1117 " WHERE val = ?", undef, (${$args{val}}));
1118 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
1119 if $ptrcount;
1120 $code = 'WARN' if $ptrcount;
1121 }
1122
1123 # Add the reverse zone ID to the fieldlist
1124 ${$args{fields}} .= "rdns_id,";
1125 push @{$args{vallist}}, $revid;
1126
1127 # Coerce the hostname back to the domain; this is so it displays and manipulates
1128 # sanely in the reverse zone.
1129 if (${$args{host}} eq '@') {
1130 ${$args{host}} = $self->domainName($args{id}); # errors? What errors?
1131 }
1132 } # revrec ne 'y'
1133
1134 } else { # defrec eq 'y'
1135
1136 if ($args{revrec} eq 'y') {
1137 ($code,$msg) = $self->_validate_12(%args);
1138 return ($code,$msg) if $code eq 'FAIL';
1139 if (${$args{rectype}} == 65280) {
1140 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
1141 if ${$args{val}} =~ /:/;
1142 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
1143 } elsif (${$args{rectype}} == 65281) {
1144 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
1145 if ${$args{val}} =~ /\./;
1146 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
1147 }
1148 } else {
1149 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
1150 # domains, since you wouldn't be able to substitute both domain and reverse zone
1151 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
1152 # confuse the hell out of pretty much anything that uses them.
1153##fixme: make this a config flag?
1154 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
1155 }
1156 }
1157
1158 return ($code, $msg);
1159} # done A+PTR record
1160
1161# AAAA+PTR record
1162# A+PTR above has been magicked to handle AAAA+PTR as well.
1163sub _validate_65281 {
1164 return _validate_65280(@_);
1165} # done AAAA+PTR record
1166
1167# PTR template record
1168sub _validate_65282 {
1169 my $self = shift;
1170 my $dbh = $self->{dbh};
1171
1172 my %args = @_;
1173
1174 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
1175 if ($args{revrec} eq 'y') {
1176 if ($args{defrec} eq 'n') {
1177 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
1178 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1179##fixme: warn if $args{val} is not /31 or larger block?
1180 ${$args{val}} = "$args{addr}";
1181 } else {
1182 if (${$args{val}} =~ /\./) {
1183 # looks like a v4 or fragment
1184 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
1185 # woo! a complete IP! validate it and normalize, or fail.
1186 $args{addr} = NetAddr::IP->new(${$args{val}})
1187 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
1188 ${$args{val}} = "$args{addr}";
1189 } else {
1190 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
1191 }
1192 } elsif (${$args{val}} =~ /[a-f:]/) {
1193 # looks like a v6 or fragment
1194 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
1195 if ($args{addr}) {
1196 if ($args{addr}->addr =~ /^0/) {
1197 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
1198 } else {
1199 ${$args{val}} = "$args{addr}";
1200 }
1201 }
1202 } else {
1203 # bare number (probably). These could be v4 or v6, so we'll
1204 # expand on these on creation of a reverse zone.
1205 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
1206 }
1207 }
1208##fixme: validate %-patterns?
1209
1210# Unlike single PTR records, there is absolutely no way to sanely support multiple
1211# PTR templates for the same block, since they expect to expand to all the individual
1212# IPs on export. Nested templates should be supported though.
1213
1214 my @checkvals = (${$args{val}});
1215 if (${$args{val}} =~ /,/) {
1216 # push . and :: variants into checkvals if val has ,
1217 my $tmp;
1218 ($tmp = ${$args{val}}) =~ s/,/./;
1219 push @checkvals, $tmp;
1220 ($tmp = ${$args{val}}) =~ s/,/::/;
1221 push @checkvals, $tmp;
1222 }
1223##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
1224# Per Netblock such that they don't conflict on export
1225 my $typeck;
1226# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
1227 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
1228# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
1229 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
1230# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
1231 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
1232 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
1233 "AND (type=65282 OR $typeck)");
1234 foreach my $checkme (@checkvals) {
1235 $pcsth->execute($checkme);
1236 my ($rc) = $pcsth->fetchrow_array;
1237 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
1238 }
1239
1240 } else {
1241 return ('FAIL', "Forward zones cannot contain PTR records");
1242 }
1243
1244 return ('OK','OK');
1245} # done PTR template record
1246
1247# A+PTR template record
1248sub _validate_65283 {
1249 my $self = shift;
1250 my $dbh = $self->{dbh};
1251
1252 my %args = @_;
1253
1254 my ($code,$msg) = ('OK','OK');
1255
1256##fixme: need to fiddle things since A+PTR templates are acceptable in live
1257# forward zones but not default records
1258 if ($args{defrec} eq 'n') {
1259 if ($args{revrec} eq 'n') {
1260
1261 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
1262 # or the intended parent domain for live records.
1263 my $pname = $self->domainName($args{id});
1264 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
1265
1266 # check for form; note this checks both normal and "other" hostnames.
1267 return ('FAIL', $errstr)
1268 if !_check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
1269
1270 # Check if the requested reverse zone exists - note, an IP fragment won't
1271 # work here since we don't *know* which parent to put it in.
1272 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1273 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1274 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1275 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
1276 if (!$revid) {
1277 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
1278 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
1279##fixme: add A template, AAAA template types?
1280# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1281 return ('FAIL', $msg);
1282 }
1283
1284 # Add reverse zone ID to field list and values
1285 ${$args{fields}} .= "rdns_id,";
1286 push @{$args{vallist}}, $revid;
1287
1288 } else {
1289 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
1290 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1291 ${$args{val}} = "$args{addr}";
1292
1293 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1294 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1295 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1296 $msg .= "\n$addmsg" if $code eq 'WARN';
1297 $msg = $addmsg if $code eq 'OK';
1298 ${$args{rectype}} = 65282;
1299 return ('WARN', $msg);
1300 }
1301
1302 # Add domain ID to field list and values
1303 ${$args{fields}} .= "domain_id,";
1304 push @{$args{vallist}}, ${$args{domid}};
1305 }
1306
1307 } else {
1308 my ($code,$msg) = $self->_validate_65282(%args);
1309 return ($code, $msg) if $code eq 'FAIL';
1310 # get domain, check against ${$args{name}}
1311 }
1312
1313 return ('OK','OK');
1314} # done A+PTR template record
1315
1316# AAAA+PTR template record
1317# Not sure this can be handled sanely due to the size of IPv6 address space
1318# _validate_65283 above should handle v6 template records fine. It's on export we've got trouble.
1319sub _validate_65284 {
1320 my $self = shift;
1321 my %args = @_;
1322
1323 # do a quick check on the form of the hostname part; this is effectively a
1324 # "*.0.0.f.ip6.arpa" hostname, not an actual expandable IP template pattern
1325 # like with 65283.
1326 return ('FAIL', $errstr)
1327 if !_check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
1328 return $self->_validate_65283(%args);
1329} # done AAAA+PTR template record
1330
1331# Delegation record
1332# This is essentially a specialized clone of the NS record, primarily useful
1333# for delegating IPv4 sub-/24 reverse blocks
1334sub _validate_65285 {
1335 my $self = shift;
1336 my $dbh = $self->{dbh};
1337
1338 my %args = @_;
1339
1340# Almost, but not quite, identical to NS record validation.
1341
1342 # Check that the target of the record is within the parent.
1343 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
1344 if ($args{defrec} eq 'n') {
1345 # Check if IP/address/zone/"subzone" is within the parent
1346 if ($args{revrec} eq 'y') {
1347 my $tmpip = NetAddr::IP->new(${$args{val}});
1348 my $pname = $self->revName($args{id});
1349 return ('FAIL',"${$args{val}} not within $pname")
1350 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
1351 # Normalize
1352 ${$args{val}} = "$tmpip";
1353 } else {
1354 my $pname = $self->domainName($args{id});
1355 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/i;
1356 }
1357 } else {
1358 return ('FAIL',"Delegation records are not permitted in default record sets");
1359 }
1360 return ('OK','OK');
1361}
1362
1363# Subs not specific to a particular record type
1364
1365# Convert $$host and/or $$val to lowercase as appropriate.
1366# Should only be called if $self->{lowercase} is true.
1367# $rectype is also a reference for caller convenience
1368sub _caseclean {
1369 my ($rectype, $host, $val, $defrec, $revrec) = @_;
1370
1371 # Can't case-squash default records, due to DOMAIN, ZONE, and ADMINDOMAIN templating
1372 return if $defrec eq 'y';
1373
1374 if ($typemap{$$rectype} eq 'TXT' || $typemap{$$rectype} eq 'SPF') {
1375 # TXT records should preserve user entry in the string.
1376 # SPF records are a duplicate of TXT with a new record type value (99)
1377 $$host = lc($$host) if $revrec eq 'n'; # only lowercase $$host on live forward TXT; preserve TXT content
1378 $$val = lc($$val) if $revrec eq 'y'; # only lowercase $$val on live reverse TXT; preserve TXT content
1379 } else {
1380 # Non-TXT, live records, are fully case-insensitive
1381 $$host = lc($$host);
1382 $$val = lc($$val);
1383 } # $typemap{$$rectype} else
1384
1385} # _caseclean()
1386
1387
1388##
1389## Record data substitution subs
1390##
1391
1392# Replace ZONE in hostname, or create (most of) the actual proper zone name
1393sub _ZONE {
1394 my $zone = shift;
1395 my $string = shift;
1396 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
1397 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
1398
1399 my $prefix;
1400
1401 $string =~ s/,/./ if !$zone->{isv6};
1402 $string =~ s/,/::/ if $zone->{isv6};
1403
1404 # Subbing ZONE in the host. We need to properly ID the netblock range
1405 # The subbed text should have "network IP with trailing zeros stripped" for
1406 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
1407 # For blocks that do NOT line up on these boundaries, we take the most
1408 # significant octet or 16-bit chunk of the "broadcast" IP and append it
1409 # after a double-dash
1410 # ie:
1411 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1412 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1413 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1414 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1415 # Similar for v6
1416
1417 if (!$zone->{isv6}) { # IPv4
1418
1419 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1420 # a funky subnet that had host bits set.
1421 my $bc = $zone->broadcast->addr;
1422
1423 if ($zone->masklen > 24) {
1424 $bc =~ s/^\d+\.\d+\.\d+\.//;
1425 } elsif ($zone->masklen > 16) {
1426 $prefix =~ s/\.0$//;
1427 $bc =~ s/^\d+\.\d+\.//;
1428 } elsif ($zone->masklen > 8) {
1429 $bc =~ s/^\d+\.//;
1430 $prefix =~ s/\.0\.0$//;
1431 } else {
1432 $prefix =~ s/\.0\.0\.0$//;
1433 }
1434 if ($zone->masklen % 8) {
1435 $bc =~ s/(\.255)+$//;
1436 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1437 }
1438 if ($fr eq 'f') {
1439 $prefix =~ s/\.+/$sep/g;
1440 } else {
1441 $prefix = join($sep, reverse(split(/\./, $prefix)));
1442 }
1443
1444 } else { # IPv6
1445
1446 if ($fr eq 'f') {
1447
1448 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1449 # a funky subnet that had host bits set.
1450 my $bc = $zone->broadcast->addr;
1451 if (($zone->masklen % 16) != 0) {
1452 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1453 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1454 $prefix =~ s/:0$//;
1455 $bc =~ s/:ffff$//;
1456 }
1457 # Strip the leading 16-bit chunks off the front of the broadcast IP
1458 $bc =~ s/^([a-f0-9]+:)+//;
1459 # Append the remaining 16-bit chunk to the prefix after "--"
1460 $prefix .= "--$bc";
1461 } else {
1462 # Strip off :0 from the end until we reach the netblock length.
1463 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1464 $prefix =~ s/:0$//;
1465 }
1466 }
1467 # Actually deal with the separator
1468 $prefix =~ s/:/$sep/g;
1469
1470 } else { # $fr eq 'f'
1471
1472 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1473 # a funky subnet that had host bits set.
1474 my $bc = $zone->broadcast->full;
1475 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1476 $bc =~ s/://g;
1477 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1478 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1479 $prefix =~ s/0$//;
1480 $bc =~ s/f$//;
1481 }
1482 # Split and reverse the order of the nibbles in the network/broadcast IPs
1483 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1484 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1485 my @nbits = reverse split //, $prefix;
1486 my @bbits = reverse split //, $bc;
1487 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1488 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1489 # Glue it back together
1490 $prefix = join($sep, @nbits);
1491
1492 } # $fr ne 'f'
1493
1494 } # $zone->{isv6}
1495
1496 # Do the substitution, finally
1497 $string =~ s/ZONE/$prefix/;
1498 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1499 return $string;
1500} # done _ZONE()
1501
1502# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1503# given the .arpa zone name, return the CIDR netblock the zone is for.
1504# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1505# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1506# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1507sub _zone2cidr {
1508 my $zone = shift;
1509
1510 my $cidr;
1511 my $tmpcidr;
1512 my $warnmsg = '';
1513
1514 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1515 # v4 revzone, formal zone name type
1516 my $tmpzone = $zone;
1517 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name [$tmpzone]")
1518 if $tmpzone !~ m{^(?:\d+[/-])?[\d\.]+\.in-addr\.arpa\.?$};
1519 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1520
1521 # Snag the octet pieces
1522 my @octs = split /\./, $tmpzone;
1523
1524 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1525 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1526 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1527 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1528 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1529 );
1530
1531 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1532 # Need to take the size of the range to offset the basic octet-based mask length,
1533 # and make sure the first number in the range gets used as the network address for the block
1534 # Alternate form: The second number is actually the real netmask, not the end of the range.
1535 my $masklen = 0;
1536 if ($octs[0] =~ m{^((\d+)[/-](\d+))$}) { # take the range...
1537 if (24 < $3 && $3 < 31) {
1538 # we have a real netmask
1539 $masklen = -$maskmap{$3};
1540 } else {
1541 # we have a range. NB: only real CIDR ranges are supported
1542 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1543 }
1544 $octs[0] = $2; # set the base octet of the range...
1545 }
1546 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1547
1548# arguably we should only allow sub-octet range/mask in-addr.arpa
1549# specifications in the least significant octet, but the code is
1550# simpler if we deal with sub-octet delegations at any level.
1551
1552 # Now we find the "true" mask with the aid of the "base" calculated above
1553 if ($#octs == 0) {
1554 $masklen += 8;
1555 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1556 } elsif ($#octs == 1) {
1557 $masklen += 16;
1558 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1559 } elsif ($#octs == 2) {
1560 $masklen += 24;
1561 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1562 } else {
1563 $masklen += 32;
1564 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1565 }
1566
1567 } elsif ($zone =~ /\.ip6\.arpa\.?$/) {
1568 # v6 revzone, formal zone name type
1569 my $tmpzone = $zone;
1570##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1571 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name [$tmpzone]")
1572 if $tmpzone !~ /^[a-fA-F\d\.]+\.ip6\.arpa\.?$/;
1573 $tmpzone =~ s/\.ip6\.arpa\.?//;
1574 my @quads = reverse(split(/\./, $tmpzone));
1575 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1576 my $nc;
1577 foreach (@quads) {
1578 $tmpcidr .= $_;
1579 $tmpcidr .= ":" if ++$nc % 4 == 0 && $nc < $#quads;
1580 }
1581 my $nq = 1 if $nc % 4 != 0;
1582 my $mask = $nc * 4; # need to do this here because we probably increment it below
1583 while ($nc++ % 4 != 0) {
1584 $tmpcidr .= "0";
1585 }
1586 # polish it off with trailing ::/mask if this is a CIDR block instead of an IP
1587 $tmpcidr .= "::/$mask" if $mask != 128;
1588 }
1589
1590 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1591 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1592 unless $cidr = NetAddr::IP->new($tmpcidr);
1593
1594 if ($warnmsg) {
1595 $errstr = $warnmsg;
1596 return ('WARN', $cidr);
1597 }
1598 return ('OK', $cidr);
1599##fixme: use wantarray() to decide what to return?
1600} # done _zone2cidr()
1601
1602# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1603# really have a sane way to handle this type of expansion at the moment
1604# due to the size of the address space.
1605# Takes a reference to a template string to be expanded, an IP to use in the replacement,
1606# an optional netblock for the %ngb (net, gw, bcast) expansion, and an optional index
1607# number for %c "n'th usable IP in block/range" patterns.
1608# Alters the template string referred.
1609sub _template4_expand {
1610 # ugh pthui
1611 my $self;
1612 $self = shift if ref($_[0]) eq 'DNSDB';
1613
1614 my $tmpl = shift;
1615 my $ip = shift;
1616 my $subnet = shift; # for %ngb and %c
1617 my $ipindex = shift; # for %c
1618
1619 # blank $tmpl on config template_skip_0 or template_skip_255, unless we have a %ngb
1620 if ($$tmpl !~ /\%-?n-?g-?b\%/) {
1621 if ( ($ip =~ /\.0$/ && $self->{template_skip_0}) ||
1622 ($ip =~ /\.255$/ && $self->{template_skip_255}) ) {
1623 $$tmpl = '';
1624 return;
1625 }
1626 }
1627
1628 my @ipparts = split /\./, $ip;
1629 my @iphex;
1630 my @ippad;
1631 for (@ipparts) {
1632 push @iphex, sprintf("%x", $_);
1633 push @ippad, sprintf("%0.3u", $_);
1634 }
1635
1636 # Two or three consecutive separator characters (_ or -) should be rare - users that use them
1637 # anywhere other than punycoded internationalized domains get to keep the pieces when it breaks.
1638 # We clean up the ones that we may inadvertently generate after replacing %c and %ngb%
1639 my ($thrsep) = ($$tmpl =~ /[_-]{3}/);
1640 my ($twosep) = ($$tmpl =~ /[_-]{2}/);
1641
1642 # Take the simplest path to pattern substitution; replace only exactly the %c or %ngb%
1643 # patterns as-is. Then check after to see if we've caused doubled separator characters (- or _)
1644 # and eliminate them, but only if the original template didn't have them already. Also
1645 # unconditionally drop separator characters immediately before a dot; these do not always
1646 # strictly make the label invalid but almost always, and any exceptions should never show up
1647 # in a template record that expands to "many" real records anyway.
1648
1649 # %ngb and %c require a netblock
1650 if ($subnet) {
1651 # extract the fragments
1652 my ($ngb,$n,$g,$b) = ($$tmpl =~ /(\%(-?n)(-?g)(-?b)\%)/);
1653 my ($c) = ($$tmpl =~ /(\%-?c)/); my $nld = ''; my $cld = '';
1654 $c = '' if !$c;
1655 my $skipgw = ($c =~ /\%-c/ ? 0 : 1);
1656 my $ipkill = 0;
1657
1658##fixme: still have one edge case not handled well:
1659# %c%n-gb%
1660# do we drop the record as per -g, or publish the record with an index of 1 as per %c?
1661# arguably this is a "that's a STUPID question!" case
1662
1663 if ($c) {
1664 # "n'th usable IP in the block" pattern. We need the caller to provide an index
1665 # number otherwise we see exponential time growth because we have to iterate over
1666 # the whole block to map the IP back to an index. :/
1667 # NetAddr::IP does not have a method for asking "what index is IP <foo> at?"
1668
1669 # no index, or index == 0, (AKA network address), or IP == broadcast, blank the index fragment
1670 if (!$ipindex || ($$subnet->broadcast->addr eq $ip)) {
1671 $$tmpl =~ s/$c//;
1672 } else {
1673 # if we have %c, AKA "skip the gateway", and we're on the nominal gateway IP, blank the index fragment
1674 if ($skipgw && $$subnet->first->addr eq $ip) {
1675 $$tmpl =~ s/$c//;
1676 }
1677 # else replace the index fragment with the passed index minus $skipgw, so that we can start the
1678 # resulting index at 1 on net+2
1679 else {
1680 $$tmpl =~ s/$c/($ipindex-$skipgw)/e;
1681 }
1682 }
1683 } # if ($c)
1684
1685 if ($ngb) {
1686 # individually check the network, standard gateway (net+1) IP, and broadcast IP
1687 # blank $$tmpl if n, g, or b was prefixed with - (this allows "hiding" net/gw/bcast entries)
1688
1689 if ($$subnet->network->addr eq $ip) {
1690 if ($n eq '-n') {
1691 $$tmpl = '';
1692 } else {
1693 $$tmpl =~ s/$ngb/net/;
1694 $ipkill = 1;
1695 }
1696 } elsif ($$subnet->first->addr eq $ip) {
1697 if ($g eq '-g') {
1698 $$tmpl = '';
1699 } else {
1700 $$tmpl =~ s/$ngb/gw/;
1701 $ipkill = 1;
1702 }
1703 } elsif ($$subnet->broadcast->addr eq $ip) {
1704 if ($b eq '-b') {
1705 $$tmpl = '';
1706 } else {
1707 $$tmpl =~ s/$ngb/bcast/;
1708 $ipkill = 1;
1709 }
1710 } else {
1711 $$tmpl =~ s/$ngb//;
1712 }
1713 }
1714
1715 # We don't (usually) want to expand the IP-related patterns on the -net, -gw, or -bcast IPs.
1716 # Arguably this is another place for another config knob, or possibly further extension of
1717 # the template pattern to control it on a per-subnet basis.
1718 if ($ipkill) {
1719 # kill common IP patterns
1720 $$tmpl =~ s/\%[_.-]?[irdh]//;
1721 # kill IP octet patterns
1722 $$tmpl =~ s/\%[1234][dh0](?:[_.-]\%[1234][dh0]){0,3}//;
1723 }
1724
1725 # and now clean up to make sure we leave a valid DNS label... mostly. Should arguably
1726 # split on /\./ and process each label separately.
1727 $$tmpl =~ s/([_-]){3}/$1/ if !$thrsep;
1728 $$tmpl =~ s/([_-]){2}/$1/ if !$twosep;
1729 $$tmpl =~ s/[_-]\././;
1730
1731 } # if ($subnet)
1732
1733 # IP substitutions in template records:
1734 #major patterns:
1735 #dashed IP, forward and reverse
1736 #underscoreed IP, forward and reverse
1737 #dotted IP, forward and reverse (even if forward is... dumb)
1738 # -> %r for reverse, %i for forward, leading -, _, or . to indicate separator, defaults to -
1739 # %r or %-r => %4d-%3d-%2d-%1d
1740 # %_r => %4d_%3d_%2d_%1d
1741 # %.r => %4d.%3d.%2d.%1d
1742 # %i or %-i => %1d-%2d-%3d-%4d
1743 # %_i => %1d_%2d_%3d_%4d
1744 # %.i => %1d.%2d.%3d.%4d
1745 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1746 $$tmpl =~ s/\%([-._])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1747 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1748 $$tmpl =~ s/\%([-._])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1749
1750 #hex-coded IP
1751 # %h
1752 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1753
1754 #IP as decimal-coded 32-bit value
1755 # %d
1756 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1757 $$tmpl =~ s/\%d/$iptmp/g;
1758
1759 #minor patterns (per-octet)
1760 # %[1234][dh0]
1761 #octet
1762 #hex-coded octet
1763 #0-padded octet
1764 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1765 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1766 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1767
1768} # _template4_expand()
1769
1770# Broad syntactic check on the hostname. Checks for valid characters, correctly-expandable template patterns.
1771# Takes the hostname, type, and live/default and forward/reverse flags
1772# Returns true/false, sets errstr on failures
1773sub _check_hostname_form {
1774 my ($hname,$rectype,$defrec,$revrec) = @_;
1775
1776 if ($hname =~ /\%/ && ($rectype == 65282 || $rectype == 65283) ) {
1777 my $tmphost = $hname;
1778 # we don't actually need to test with the real IP passed; that saves a bit of fiddling.
1779 DNSDB::_template4_expand(\$tmphost, '10.10.10.10');
1780 if ($tmphost =~ /\%/ || lc($tmphost) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+)$/) {
1781 $errstr = "Invalid template $hname";
1782 return;
1783 }
1784 } elsif ($rectype == $reverse_typemap{CNAME} && $revrec eq 'y') {
1785 # Allow / in reverse CNAME hostnames for sub-/24 delegation
1786 if (lc($hname) !~ m|^[0-9a-z_./-]+$|) {
1787 # error message is deliberately restrictive; special cases are SPECIAL and not for general use
1788 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1789 return;
1790 }
1791 } elsif ($revrec eq 'y') {
1792 # Reverse zones don't support @ in hostnames
1793 if (lc($hname) !~ /^(?:\*\.)?[0-9a-z_.-]+$/) {
1794 # error message is deliberately restrictive; special cases are SPECIAL and not for general use
1795 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1796 return;
1797 }
1798 } else {
1799 if (lc($hname) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+|@)$/) {
1800 # Don't mention @, because it would be far too wordy to explain the nuance of @
1801 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1802 return;
1803 }
1804 }
1805 return 1;
1806} # _check_hostname_form()
1807
1808
1809##
1810## Initialization and cleanup subs
1811##
1812
1813## DNSDB::__cfgload()
1814# Private sub to parse a config file and load it into %config
1815# Takes a filename and a hashref to put the parsed entries in
1816sub __cfgload {
1817 $errstr = '';
1818 my $cfgfile = shift;
1819 my $cfg = shift;
1820
1821 if (open CFG, "<$cfgfile") {
1822 while (<CFG>) {
1823 chomp;
1824 s/^\s*//;
1825 next if /^#/;
1826 next if /^$/;
1827# hmm. more complex bits in this file might require [heading] headers, maybe?
1828# $mode = $1 if /^\[(a-z)+]/;
1829 # DB connect info
1830 $cfg->{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1831 $cfg->{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1832 $cfg->{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1833 $cfg->{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1834 # Mail settings
1835 $cfg->{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1836 $cfg->{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1837 $cfg->{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1838 $cfg->{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1839 $cfg->{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1840 $cfg->{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1841 # session - note this is fed directly to CGI::Session
1842 $cfg->{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1843 $cfg->{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1844 # misc
1845 $cfg->{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1846 $cfg->{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1847 $cfg->{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1848 $cfg->{usecache} = $1 if m{^usecache\s*=\s*([a-z01]+)}i;
1849 $cfg->{force_refresh} = $1 if /^force_refresh\s*=\s*([a-z01]+)/i;
1850 $cfg->{lowercase} = $1 if /^lowercase\s*=\s*([a-z01]+)/i;
1851 $cfg->{showrev_arpa} = $1 if /^showrev_arpa\s*=\s*([a-z]+)/i;
1852 $cfg->{template_skip_0} = $1 if /^template_skip_0\s*=\s*([a-z01]+)/i;
1853 $cfg->{template_skip_255} = $1 if /^template_skip_255\s*=\s*([a-z01]+)/i;
1854# not supported in dns.cgi yet
1855# $cfg->{templatedir} = $1 if m{^templatedir\s*=\s*([a-z0-9/_.-]+)}i;
1856# $cfg->{templateoverride} = $1 if m{^templateoverride\s*=\s*([a-z0-9/_.-]+)}i;
1857 # RPC options
1858 $cfg->{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1859 $cfg->{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1860 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1861 my @ips = split /[,\s]+/, $tmp;
1862 my $rpcsys = shift @ips;
1863 push @{$cfg->{rpcacl}{$rpcsys}}, @ips;
1864 }
1865 }
1866 close CFG;
1867 } else {
1868 $errstr = "Couldn't load configuration file $cfgfile: $!";
1869 return;
1870 }
1871 return 1;
1872} # end __cfgload()
1873
1874
1875## DNSDB::connectDB()
1876# Creates connection to DNS database.
1877# Requires the database name, username, and password.
1878# Returns a handle to the db or undef on failure.
1879# Set up for a PostgreSQL db; could be any transactional DBMS with the
1880# right changes.
1881# Called by new(); not intended to be called publicly.
1882sub connectDB {
1883 $errstr = '';
1884 my $dbname = shift;
1885 my $user = shift;
1886 my $pass = shift;
1887 my $dbh;
1888 my $DSN = "DBI:Pg:dbname=$dbname";
1889
1890 my $host = shift;
1891 $DSN .= ";host=$host" if $host;
1892
1893# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1894# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1895 $dbh = DBI->connect($DSN, $user, $pass, {
1896 AutoCommit => 1,
1897 PrintError => 0
1898 });
1899 if (!$dbh) {
1900 $errstr = $DBI::errstr;
1901 return;
1902 }
1903#) if(!$dbh);
1904
1905 local $dbh->{RaiseError} = 1;
1906
1907 eval {
1908##fixme: initialize the DB if we can't find the table (since, by definition, there's
1909# nothing there if we can't select from it...)
1910 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1911 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1912# return (undef,$DBI::errstr) if $dbh->err;
1913
1914#if ($tblcount == 0) {
1915# # create tables one at a time, checking for each.
1916# return (undef, "check table misc missing");
1917#}
1918
1919# Return here if we can't select.
1920# This should retrieve the dbversion key.
1921 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1922 $sth->execute();
1923# return (undef,$DBI::errstr) if ($sth->err);
1924
1925##fixme: do stuff to the DB on version mismatch
1926# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1927# DB should be downward-compatible; column defaults should give sane (if possibly
1928# useless-and-needs-help) values in columns an older software stack doesn't know about.
1929
1930# See if the select returned anything (or null data). This should
1931# succeed if the select executed, but...
1932 $sth->fetchrow();
1933# return (undef,$DBI::errstr) if ($sth->err);
1934
1935 $sth->finish;
1936
1937 }; # wrapped DB checks
1938 if ($@) {
1939 $errstr = $@;
1940 return;
1941 }
1942
1943# If we get here, we should be OK.
1944 return $dbh;
1945} # end connectDB
1946
1947
1948## DNSDB::finish()
1949# Cleans up after database handles and so on.
1950# Requires a database handle
1951sub finish {
1952 my $self = shift;
1953 $self->{dbh}->disconnect;
1954} # end finish
1955
1956
1957## DNSDB::initGlobals()
1958# Initialize global variables
1959# NB: this does NOT include web-specific session variables!
1960sub initGlobals {
1961 my $self = shift;
1962 my $dbh = $self->{dbh};
1963
1964# load record types from database
1965 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1966 $sth->execute;
1967 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1968 $typemap{$recval} = $recname;
1969 $reverse_typemap{$recname} = $recval;
1970 # now we fill the record validation function hash
1971 if ($stdflag < 5) {
1972 my $fn = "_validate_$recval";
1973 $validators{$recval} = \&$fn;
1974 } else {
1975 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1976 $validators{$recval} = eval $fn;
1977 }
1978 }
1979} # end initGlobals
1980
1981
1982## DNSDB::initRPC()
1983# Takes a remote username and remote fullname.
1984# Sets up the RPC logging-pseudouser if needed.
1985# Sets the %userdata hash for logging.
1986# Returns undef on failure
1987sub initRPC {
1988 my $self = shift;
1989 my $dbh = $self->{dbh};
1990 my %args = @_;
1991
1992 return if !$args{username};
1993 return if !$args{fullname};
1994
1995 $args{username} = "$args{username}/$args{rpcsys}";
1996
1997 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1998 " FROM users WHERE username=?", undef, ($args{username}) );
1999 if (!$tmpuser) {
2000 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
2001 ($args{username}, $args{fullname}) );
2002 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
2003 " FROM users WHERE username=?", undef, ($args{username}) );
2004 }
2005 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
2006 $self->{loguserid} = $tmpuser->{userid};
2007 $self->{logusername} = $tmpuser->{username};
2008 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
2009 return 1 if $tmpuser;
2010} # end initRPC()
2011
2012
2013## DNSDB::login()
2014# Takes a database handle, username and password
2015# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
2016# password matches the one on file, and account is not disabled
2017# Returns undef otherwise
2018sub login {
2019 my $self = shift;
2020 my $dbh = $self->{dbh};
2021 my $user = shift;
2022 my $pass = shift;
2023
2024 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
2025 " FROM users WHERE username=?",
2026 undef, ($user) );
2027 return if !$userinfo;
2028 return if !$userinfo->{status};
2029
2030 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
2031 # native passwords (crypt-md5)
2032 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
2033 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
2034 # VegaDNS import (hex-coded MD5)
2035 return if $userinfo->{password} ne md5_hex($pass);
2036 } else {
2037 # plaintext (convenient now and then)
2038 return if $userinfo->{password} ne $pass;
2039 }
2040
2041 return $userinfo;
2042} # end login()
2043
2044
2045## DNSDB::initActionLog()
2046# Set up action logging. Takes a database handle and user ID
2047# Sets some internal globals and Does The Right Thing to set up a logging channel.
2048# This sets up _log() to spew out log entries to the defined channel without worrying
2049# about having to open a file or a syslog channel
2050##fixme Need to call _initActionLog_blah() for various logging channels, configured
2051# via dnsdb.conf, in $self->{log_channel} or something
2052# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
2053sub initActionLog {
2054 my $self = shift;
2055 my $dbh = $self->{dbh};
2056 my $uid = shift;
2057
2058 return if !$uid;
2059
2060 # snag user info for logging. there's got to be a way to not have to pass this back
2061 # and forth from a caller, but web usage means no persistence we can rely on from
2062 # the server side.
2063 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
2064 " FROM users WHERE user_id=?", undef, ($uid));
2065##fixme: errors are unpossible!
2066
2067 $self->{logusername} = $username;
2068 $self->{loguserid} = $uid;
2069 $self->{logfullname} = $fullname;
2070
2071 # convert to real check once we have other logging channels
2072 # if ($self->{log_channel} eq 'sql') {
2073 # Open Log, Sez Me!
2074 # }
2075
2076} # end initActionLog
2077
2078
2079## DNSDB::getPermissions()
2080# Get permissions from DB
2081# Requires DB handle, group or user flag, ID, and hashref.
2082sub getPermissions {
2083 my $self = shift;
2084 my $dbh = $self->{dbh};
2085
2086 my $type = shift;
2087 my $id = shift;
2088 my $hash = shift;
2089
2090 my $sql = qq(
2091 SELECT
2092 p.admin,p.self_edit,
2093 p.group_create,p.group_edit,p.group_delete,
2094 p.user_create,p.user_edit,p.user_delete,
2095 p.domain_create,p.domain_edit,p.domain_delete,
2096 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
2097 p.location_create,p.location_edit,p.location_delete,p.location_view
2098 FROM permissions p
2099 );
2100 if ($type eq 'group') {
2101 $sql .= qq(
2102 JOIN groups g ON g.permission_id=p.permission_id
2103 WHERE g.group_id=?
2104 );
2105 } else {
2106 $sql .= qq(
2107 JOIN users u ON u.permission_id=p.permission_id
2108 WHERE u.user_id=?
2109 );
2110 }
2111
2112 my $sth = $dbh->prepare($sql);
2113
2114##fixme? we don't trap other plain SELECT errors
2115 $sth->execute($id);
2116
2117# my $permref = $sth->fetchrow_hashref;
2118# return $permref;
2119# $hash = $permref;
2120# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
2121 ($hash->{admin},$hash->{self_edit},
2122 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
2123 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
2124 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
2125 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
2126 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
2127 ) = $sth->fetchrow_array;
2128
2129} # end getPermissions()
2130
2131
2132## DNSDB::changePermissions()
2133# Update an ACL entry
2134# Takes a db handle, type, owner-id, and hashref for the changed permissions.
2135sub changePermissions {
2136 my $self = shift;
2137 my $dbh = $self->{dbh};
2138 my $type = shift;
2139 my $id = shift;
2140 my $newperms = shift;
2141 my $inherit = shift || 0;
2142
2143 my $resultmsg = '';
2144
2145 # see if we're switching from inherited to custom. for bonus points,
2146 # snag the permid and parent permid anyway, since we'll need the permid
2147 # to set/alter custom perms, and both if we're switching from custom to
2148 # inherited.
2149 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
2150 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
2151 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
2152 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
2153 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
2154 $sth->execute($id);
2155
2156 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
2157
2158# hack phtoui
2159# group id 1 is "special" in that it's it's own parent (err... possibly.)
2160# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
2161 $wasinherited = 0 if ($type eq 'group' && $id == 1);
2162
2163 local $dbh->{AutoCommit} = 0;
2164 local $dbh->{RaiseError} = 1;
2165
2166 # Wrap all the SQL in a transaction
2167 eval {
2168 if ($inherit) {
2169
2170 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
2171 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
2172 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
2173
2174 } else {
2175
2176 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
2177##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
2178# ... if'n'when we have groups with fully inherited permissions.
2179 # SQL is coo
2180 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
2181 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
2182 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
2183 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
2184 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
2185 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
2186 }
2187
2188 # and now set the permissions we were passed
2189 foreach (@permtypes) {
2190 if (defined ($newperms->{$_})) {
2191 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
2192 }
2193 }
2194
2195 } # (inherited->)? custom
2196
2197 if ($type eq 'user') {
2198 $resultmsg = "Updated permissions for user $name";
2199 } else {
2200 $resultmsg = "Updated default permissions for group $name";
2201 }
2202 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
2203 $dbh->commit;
2204 }; # end eval
2205 if ($@) {
2206 my $msg = $@;
2207 eval { $dbh->rollback; };
2208 return ('FAIL',"Error changing permissions: $msg");
2209 }
2210
2211 return ('OK',$resultmsg);
2212} # end changePermissions()
2213
2214
2215## DNSDB::comparePermissions()
2216# Compare two permission hashes
2217# Returns '>', '<', '=', '!'
2218sub comparePermissions {
2219 my $self = shift;
2220 my $p1 = shift;
2221 my $p2 = shift;
2222
2223 my $retval = '='; # assume equality until proven otherwise
2224
2225 no warnings "uninitialized";
2226
2227 foreach (@permtypes) {
2228 next if $p1->{$_} == $p2->{$_}; # equal is good
2229 if ($p1->{$_} && !$p2->{$_}) {
2230 if ($retval eq '<') { # if we've already found an unequal pair where
2231 $retval = '!'; # $p2 has more access, and we now find a pair
2232 last; # where $p1 has more access, the overall access
2233 } # is neither greater or lesser, it's unequal.
2234 $retval = '>';
2235 }
2236 if (!$p1->{$_} && $p2->{$_}) {
2237 if ($retval eq '>') { # if we've already found an unequal pair where
2238 $retval = '!'; # $p1 has more access, and we now find a pair
2239 last; # where $p2 has more access, the overall access
2240 } # is neither greater or lesser, it's unequal.
2241 $retval = '<';
2242 }
2243 }
2244 return $retval;
2245} # end comparePermissions()
2246
2247
2248## DNSDB::changeGroup()
2249# Change group ID of an entity
2250# Takes a database handle, entity type, entity ID, and new group ID
2251sub changeGroup {
2252 my $self = shift;
2253 my $dbh = $self->{dbh};
2254 my $type = shift;
2255 my $id = shift;
2256 my $newgrp = shift;
2257
2258##fixme: fail on not enough args
2259 #return ('FAIL', "Missing
2260
2261 return ('FAIL', "Can't change the group of a $type")
2262 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
2263
2264 # Collect some names for logging and messages
2265 my $entname;
2266 if ($type eq 'domain') {
2267 $entname = $self->domainName($id);
2268 } elsif ($type eq 'revzone') {
2269 $entname = $self->revName($id);
2270 } elsif ($type eq 'user') {
2271 $entname = $self->userFullName($id, '%u');
2272 } elsif ($type eq 'group') {
2273 $entname = $self->groupName($id);
2274 }
2275
2276 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
2277 undef, ($id));
2278 my $oldgname = $self->groupName($oldgid);
2279 my $newgname = $self->groupName($newgrp);
2280
2281 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
2282
2283 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
2284
2285 # Allow transactions, and raise an exception on errors so we can catch it later.
2286 # Use local to make sure these get "reset" properly on exiting this block
2287 local $dbh->{AutoCommit} = 0;
2288 local $dbh->{RaiseError} = 1;
2289
2290 eval {
2291 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
2292 # Log the change in both the old and new groups
2293 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
2294 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
2295 $dbh->commit;
2296 };
2297 if ($@) {
2298 my $msg = $@;
2299 eval { $dbh->rollback; };
2300 if ($self->{log_failures}) {
2301 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
2302 $dbh->commit; # since we enabled transactions earlier
2303 }
2304 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
2305 }
2306
2307 return ('OK',"Moved $type $entname from $oldgname to $newgname");
2308} # end changeGroup()
2309
2310
2311##
2312## Processing subs
2313##
2314
2315## DNSDB::addDomain()
2316# Add a domain
2317# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
2318# and a default location indicator
2319# Returns a status code and message
2320sub addDomain {
2321 $errstr = '';
2322 my $self = shift;
2323 my $dbh = $self->{dbh};
2324 my $domain = shift;
2325 return ('FAIL',"Domain must not be blank\n") if !$domain;
2326 my $group = shift;
2327 return ('FAIL',"Group must be specified\n") if !defined($group);
2328 my $state = shift;
2329 return ('FAIL',"Domain status must be specified\n") if !defined($state);
2330 my $defloc = shift || '';
2331
2332 $state = 1 if $state =~ /^active$/;
2333 $state = 1 if $state =~ /^on$/;
2334 $state = 0 if $state =~ /^inactive$/;
2335 $state = 0 if $state =~ /^off$/;
2336
2337 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
2338
2339 $domain = lc($domain) if $self->{lowercase};
2340
2341 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
2342
2343 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?) AND default_location = ?");
2344 my $dom_id;
2345
2346# quick check to start to see if we've already got one
2347 $sth->execute($domain, $defloc);
2348 ($dom_id) = $sth->fetchrow_array;
2349
2350 return ('FAIL', "Domain already exists") if $dom_id;
2351
2352 # Allow transactions, and raise an exception on errors so we can catch it later.
2353 # Use local to make sure these get "reset" properly on exiting this block
2354 local $dbh->{AutoCommit} = 0;
2355 local $dbh->{RaiseError} = 1;
2356
2357 # Wrap all the SQL in a transaction
2358 eval {
2359 # insert the domain...
2360 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2361 ($domain, $group, $state, $defloc));
2362
2363 # get the ID...
2364 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?) AND default_location = ?",
2365 undef, ($domain, $defloc));
2366
2367 $self->_log(domain_id => $dom_id, group_id => $group,
2368 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
2369
2370 # ... and now we construct the standard records from the default set. NB: group should be variable.
2371 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2372 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl,location)".
2373 " VALUES ($dom_id,?,?,?,?,?,?,?,?)");
2374 $sth->execute($group);
2375 while (my ($host, $type, $val, $dist, $weight, $port, $ttl) = $sth->fetchrow_array()) {
2376 $host =~ s/DOMAIN/$domain/g;
2377 $val =~ s/DOMAIN/$domain/g;
2378 _caseclean(\$type, \$host, \$val, 'n', 'n') if $self->{lowercase};
2379 $sth_in->execute($host, $type, $val, $dist, $weight, $port, $ttl, $defloc);
2380 if ($typemap{$type} eq 'SOA') {
2381 my @tmp1 = split /:/, $host;
2382 my @tmp2 = split /:/, $val;
2383 $self->_log(domain_id => $dom_id, group_id => $group,
2384 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2385 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2386 } else {
2387 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
2388 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
2389 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
2390 $self->_log(domain_id => $dom_id, group_id => $group,
2391 entry => $logentry." $val', TTL $ttl");
2392 }
2393 }
2394
2395 # once we get here, we should have suceeded.
2396 $dbh->commit;
2397 }; # end eval
2398
2399 if ($@) {
2400 my $msg = $@;
2401 eval { $dbh->rollback; };
2402 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
2403 if $self->{log_failures};
2404 $dbh->commit; # since we enabled transactions earlier
2405 return ('FAIL',$msg);
2406 } else {
2407 return ('OK',$dom_id);
2408 }
2409} # end addDomain
2410
2411
2412## DNSDB::delZone()
2413# Delete a forward or reverse zone.
2414# Takes a database handle, zone ID, and forward/reverse flag.
2415# for now, just delete the records, then the domain.
2416# later we may want to archive it in some way instead (status code 2, for example?)
2417sub delZone {
2418 my $self = shift;
2419 my $dbh = $self->{dbh};
2420 my $zoneid = shift;
2421 my $revrec = shift;
2422
2423 # Allow transactions, and raise an exception on errors so we can catch it later.
2424 # Use local to make sure these get "reset" properly on exiting this block
2425 local $dbh->{AutoCommit} = 0;
2426 local $dbh->{RaiseError} = 1;
2427
2428 return ('FAIL', 'Need a zone identifier to look up') if !$zoneid;
2429
2430 my $msg = '';
2431 my $failmsg = '';
2432 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
2433
2434 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
2435
2436 # Set this up here since we may use if if $self->{log_failures} is enabled
2437 my %loghash;
2438 $loghash{domain_id} = $zoneid if $revrec eq 'n';
2439 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
2440 $loghash{group_id} = $self->parentID(
2441 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
2442
2443 # Wrap all the SQL in a transaction
2444 eval {
2445 # Disentangle custom record types before removing the
2446 # ones that are only in the zone to be deleted
2447 if ($revrec eq 'n') {
2448 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2449 $failmsg = "Failure converting multizone types to single-zone";
2450 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2451 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2452 $sth->execute(65282, $zoneid, 65283);
2453 $sth->execute(65282, $zoneid, 65284);
2454 $failmsg = "Failure removing domain records";
2455 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2456 $failmsg = "Failure removing domain";
2457 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2458 } else {
2459 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2460 $failmsg = "Failure converting multizone types to single-zone";
2461 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2462 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2463# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2464# $sth->execute(65286?, $zoneid, 65283);
2465# $sth->execute(65286?, $zoneid, 65284);
2466 $failmsg = "Failure removing reverse records";
2467 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2468 $failmsg = "Failure removing reverse zone";
2469 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2470 }
2471
2472 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2473 $loghash{entry} = $msg;
2474 $self->_log(%loghash);
2475
2476 # once we get here, we should have suceeded.
2477 $dbh->commit;
2478 }; # end eval
2479
2480 if ($@) {
2481 $msg = $@;
2482 eval { $dbh->rollback; };
2483 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2484 if ($self->{log_failures}) {
2485 $self->_log(%loghash);
2486 $dbh->commit; # since we enabled transactions earlier
2487 }
2488 return ('FAIL', $loghash{entry});
2489 } else {
2490 return ('OK', $msg);
2491 }
2492
2493} # end delZone()
2494
2495
2496## DNSDB::domainName()
2497# Return the domain name based on a domain ID
2498# Takes a database handle and the domain ID
2499# Returns the domain name or undef on failure
2500sub domainName {
2501 $errstr = '';
2502 my $self = shift;
2503 my $dbh = $self->{dbh};
2504 my $domid = shift;
2505 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2506 $errstr = $DBI::errstr if !$domname;
2507 return $domname if $domname;
2508} # end domainName()
2509
2510
2511## DNSDB::revName()
2512# Return the reverse zone name based on an rDNS ID
2513# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2514# instead of the formal .arpa zone name
2515# Returns the reverse zone name or undef on failure
2516sub revName {
2517 $errstr = '';
2518 my $self = shift;
2519 my $dbh = $self->{dbh};
2520 my $revid = shift;
2521 my $cidrflag = shift || 'n';
2522 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2523 $errstr = $DBI::errstr if !$revname;
2524 my $tmp = new NetAddr::IP $revname;
2525 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2526 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2527 return $revname if $revname;
2528} # end revName()
2529
2530
2531## DNSDB::domainID()
2532# Takes a database handle and domain name
2533# Returns the domain ID number
2534sub domainID {
2535 $errstr = '';
2536 my $self = shift;
2537 my $dbh = $self->{dbh};
2538 my $domain = shift;
2539 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2540 undef, ($domain) );
2541 if (!$domid) {
2542 if ($dbh->err) {
2543 $errstr = $DBI::errstr;
2544 } else {
2545 $errstr = "Domain $domain not present";
2546 }
2547 }
2548 return $domid if $domid;
2549} # end domainID()
2550
2551
2552## DNSDB::revID()
2553# Takes a database handle and reverse zone name
2554# Returns the rDNS ID number
2555sub revID {
2556 $errstr = '';
2557 my $self = shift;
2558 my $dbh = $self->{dbh};
2559 my $revzone = shift;
2560 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2561 if (!$revid) {
2562 if ($dbh->err) {
2563 $errstr = $DBI::errstr;
2564 } else {
2565 $errstr = "Reverse zone $revzone not present";
2566 }
2567 }
2568 return $revid if $revid;
2569} # end revID()
2570
2571
2572## DNSDB::addRDNS
2573# Adds a reverse DNS zone
2574# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2575# and boolean(ish) state (active/inactive)
2576# Returns a status code and message
2577sub addRDNS {
2578 my $self = shift;
2579 my $dbh = $self->{dbh};
2580 my $zone = shift;
2581
2582 # Autodetect formal .arpa zones
2583 if ($zone =~ /\.arpa\.?$/) {
2584 my $code;
2585 ($code,$zone) = _zone2cidr($zone);
2586 return ('FAIL', $zone) if $code eq 'FAIL';
2587 }
2588 $zone = NetAddr::IP->new($zone);
2589
2590 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2591 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2592 my $group = shift;
2593 my $state = shift;
2594 my $defloc = shift || '';
2595
2596 $state = 1 if $state =~ /^active$/;
2597 $state = 1 if $state =~ /^on$/;
2598 $state = 0 if $state =~ /^inactive$/;
2599 $state = 0 if $state =~ /^off$/;
2600
2601 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2602
2603# quick check to start to see if we've already got one
2604 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet = ? AND default_location = ?",
2605 undef, ("$zone", $defloc));
2606
2607 return ('FAIL', "Zone already exists") if $rdns_id;
2608
2609 # Allow transactions, and raise an exception on errors so we can catch it later.
2610 # Use local to make sure these get "reset" properly on exiting this block
2611 local $dbh->{AutoCommit} = 0;
2612 local $dbh->{RaiseError} = 1;
2613
2614 my $warnstr = '';
2615 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2616 # wrong, we should have a value to override this anyway.
2617
2618 # Wrap all the SQL in a transaction
2619 eval {
2620 # insert the zone...
2621 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2622 ($zone, $group, $state, $defloc) );
2623
2624 # get the ID...
2625 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2626
2627 $self->_log(rdns_id => $rdns_id, group_id => $group,
2628 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2629
2630 # ... and now we construct the standard records from the default set. NB: group should be variable.
2631 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2632 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2633 " VALUES ($rdns_id,?,?,?,?,?,?)");
2634 $sth->execute($group);
2635 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2636 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2637 if ($zone->{isv6}) {
2638 next if ($type == 65280 || $type == 65283);
2639 } else {
2640 next if ($type == 65281 || $type == 65284);
2641 }
2642
2643 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2644
2645 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2646 # On failure, tack a note on to a warning string and continue without adding this record.
2647 # While we're at it, we substitute $zone for ZONE in the value.
2648 if ($val eq 'ZONE') {
2649 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2650 next if $revpatt && ($type == 65282 || $type == 65283);
2651##fixme? do we care if we have multiple whole-zone templates?
2652 $val = $zone->network;
2653 } elsif ($val =~ /ZONE/) {
2654 my $tmpval = $val;
2655 $tmpval =~ s/ZONE//;
2656 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2657 # as either v4 or v6. May make this an off-by-default config flag
2658 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2659 if ($type == 12 || $type == 65282) {
2660 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2661 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2662 }
2663 my $addr;
2664 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2665 $val = $addr->addr;
2666 } else {
2667 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2668 next;
2669 }
2670 }
2671
2672 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2673 # NS records get this substitution on the value instead.
2674 $host = _ZONE($zone, $host) if $type != 2;
2675
2676 # Fill in the forward domain ID if we can find it, otherwise:
2677 # Coerce type down to PTR or PTR template if we can't
2678 my $domid = 0;
2679 if ($type >= 65280) {
2680 if (!($domid = $self->_hostparent($host))) {
2681 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2682 $type = $reverse_typemap{PTR};
2683 $domid = 0; # just to be explicit.
2684 }
2685 }
2686
2687 _caseclean(\$type, \$host, \$val, 'n', 'y') if $self->{lowercase};
2688
2689 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2690
2691 if ($typemap{$type} eq 'SOA') {
2692 my @tmp1 = split /:/, $host;
2693 my @tmp2 = split /:/, $val;
2694 $self->_log(rdns_id => $rdns_id, group_id => $group,
2695 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2696 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2697 $defttl = $tmp2[3];
2698 } else {
2699 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2700 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2701 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2702 }
2703 }
2704
2705 # Generate record based on provided pattern.
2706 if ($revpatt) {
2707 my $host;
2708 my $type = ($zone->{isv6} ? 65284 : 65283);
2709 my $val = $zone->network;
2710
2711 # Substitute $zone for ZONE in the hostname.
2712 $host = _ZONE($zone, $revpatt);
2713
2714 my $domid = 0;
2715 if (!($domid = $self->_hostparent($host))) {
2716 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2717 $type = 65282;
2718 $domid = 0; # just to be explicit.
2719 }
2720
2721 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2722 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2723 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2724 entry => $logentry." $val', TTL $defttl from pattern");
2725 }
2726
2727 # If there are warnings (presumably about default records skipped for cause) log them
2728 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2729 if $warnstr;
2730
2731 # once we get here, we should have suceeded.
2732 $dbh->commit;
2733 }; # end eval
2734
2735 if ($@) {
2736 my $msg = $@;
2737 eval { $dbh->rollback; };
2738 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2739 if $self->{log_failures};
2740 $dbh->commit; # since we enabled transactions earlier
2741 return ('FAIL',$msg);
2742 } else {
2743 my $retcode = 'OK';
2744 if ($warnstr) {
2745 $resultstr = $warnstr;
2746 $retcode = 'WARN';
2747 }
2748 return ($retcode, $rdns_id);
2749 }
2750
2751} # end addRDNS()
2752
2753
2754## DNSDB::getZoneCount
2755# Get count of zones in group or groups
2756# Takes a database handle and hash containing:
2757# - the "current" group
2758# - an array of "acceptable" groups
2759# - a flag for forward/reverse zones
2760# - Optionally accept a "starts with" and/or "contains" filter argument
2761# Returns an integer count of the resulting zone list.
2762sub getZoneCount {
2763 my $self = shift;
2764 my $dbh = $self->{dbh};
2765
2766 my %args = @_;
2767
2768 # Fail on bad curgroup argument. There's no sane fallback on this one.
2769 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2770 $errstr = "Bad or missing curgroup argument";
2771 return;
2772 }
2773 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2774 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2775 $errstr = "Bad childlist argument";
2776 return;
2777 }
2778
2779 my @filterargs;
2780 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2781 push @filterargs, "^$args{startwith}" if $args{startwith};
2782 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2783 push @filterargs, $args{filter} if $args{filter};
2784
2785 my $sql;
2786 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2787 if ($args{revrec} eq 'n') {
2788 $sql = "SELECT count(*) FROM domains".
2789 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2790 ($args{startwith} ? " AND domain ~* ?" : '').
2791 ($args{filter} ? " AND domain ~* ?" : '');
2792 } else {
2793 $sql = "SELECT count(*) FROM revzones".
2794 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2795 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2796# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2797 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2798 # we want to match both the formal and natural zone name
2799 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2800 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2801# } else {
2802# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2803# }
2804 }
2805 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2806 return $count;
2807} # end getZoneCount()
2808
2809
2810## DNSDB::getZoneList()
2811# Get a list of zones in the specified group(s)
2812# Takes the same arguments as getZoneCount() above
2813# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2814sub getZoneList {
2815 my $self = shift;
2816 my $dbh = $self->{dbh};
2817
2818 my %args = @_;
2819
2820 my @zonelist;
2821
2822 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2823 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2824
2825 # Fail on bad curgroup argument. There's no sane fallback on this one.
2826 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2827 $errstr = "Bad or missing curgroup argument";
2828 return;
2829 }
2830 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2831 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2832 $errstr = "Bad childlist argument";
2833 return;
2834 }
2835
2836 my @filterargs;
2837 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2838 push @filterargs, "^$args{startwith}" if $args{startwith};
2839 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2840 push @filterargs, $args{filter} if $args{filter};
2841
2842 my $sql;
2843 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2844 if ($args{revrec} eq 'n') {
2845 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2846 $sql = q(SELECT
2847 domain_id AS zoneid,
2848 domain AS zone,
2849 status,
2850 groups.group_name AS group,
2851 l.description AS location
2852 FROM domains
2853 LEFT JOIN locations l ON domains.default_location=l.location
2854 INNER JOIN groups ON domains.group_id=groups.group_id ).
2855 "WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2856 ($args{startwith} ? " AND domain ~* ?" : '').
2857 ($args{filter} ? " AND domain ~* ?" : '');
2858 } else {
2859##fixme: arguably startwith here is irrelevant. depends on the UI though.
2860 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2861 $sql = q(SELECT
2862 rdns_id AS zoneid,
2863 revnet AS zone,
2864 status,
2865 groups.group_name AS group,
2866 l.description AS location
2867 FROM revzones
2868 LEFT JOIN locations l ON revzones.default_location=l.location
2869 INNER JOIN groups ON revzones.group_id=groups.group_id ).
2870 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2871 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2872# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2873 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2874 # we want to match both the formal and natural zone name
2875 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2876 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2877# } else {
2878# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2879# }
2880 }
2881 # A common tail.
2882 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2883 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2884 " OFFSET ".$args{offset}*$self->{perpage});
2885
2886 my @working;
2887 my $zsth = $dbh->prepare($sql);
2888 $zsth->execute(@filterargs);
2889 while (my $zone = $zsth->fetchrow_hashref) {
2890 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2891 my $tmp = new NetAddr::IP $zone->{zone};
2892 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2893 }
2894 push @working, $zone;
2895 }
2896 return \@working;
2897} # end getZoneList()
2898
2899
2900## DNSDB::getZoneLocation()
2901# Retrieve the default location for a zone.
2902# Takes a database handle, forward/reverse flag, and zone ID
2903sub getZoneLocation {
2904 my $self = shift;
2905 my $dbh = $self->{dbh};
2906 my $revrec = shift;
2907 my $zoneid = shift;
2908
2909 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2910 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2911 undef, ($zoneid));
2912 return $loc;
2913} # end getZoneLocation()
2914
2915
2916## DNSDB::addGroup()
2917# Add a group
2918# Takes a database handle, group name, parent group, hashref for permissions,
2919# and optional template-vs-cloneme flag for the default records
2920# Returns a status code and message
2921sub addGroup {
2922 $errstr = '';
2923 my $self = shift;
2924 my $dbh = $self->{dbh};
2925 my $groupname = shift;
2926 my $pargroup = shift;
2927 my $permissions = shift;
2928
2929 # 0 indicates "custom", hardcoded.
2930 # Any other value clones that group's default records, if it exists.
2931 my $inherit = shift || 0;
2932##fixme: need a flag to indicate clone records or <?> ?
2933
2934 # Allow transactions, and raise an exception on errors so we can catch it later.
2935 # Use local to make sure these get "reset" properly on exiting this block
2936 local $dbh->{AutoCommit} = 0;
2937 local $dbh->{RaiseError} = 1;
2938
2939 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2940
2941 return ('FAIL', "Group already exists") if $group_id;
2942
2943 # Wrap all the SQL in a transaction
2944 eval {
2945 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2946
2947 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2948
2949 # We work through the whole set of permissions instead of specifying them so
2950 # that when we add a new permission, we don't have to change the code anywhere
2951 # that doesn't explicitly deal with that specific permission.
2952 my @permvals;
2953 foreach (@permtypes) {
2954 if (!defined ($permissions->{$_})) {
2955 push @permvals, 0;
2956 } else {
2957 push @permvals, $permissions->{$_};
2958 }
2959 }
2960 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2961 undef, ($groupid, @permvals) );
2962 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2963 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2964
2965 # Default records
2966 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2967 "VALUES ($groupid,?,?,?,?,?,?,?)");
2968 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2969 "VALUES ($groupid,?,?,?,?)");
2970 if ($inherit) {
2971 # Duplicate records from parent. Actually relying on inherited records feels
2972 # very fragile, and it would be problematic to roll over at a later time.
2973 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2974 $sth2->execute($pargroup);
2975 while (my @clonedata = $sth2->fetchrow_array) {
2976 $sthf->execute(@clonedata);
2977 }
2978 # And now the reverse records
2979 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2980 $sth2->execute($pargroup);
2981 while (my @clonedata = $sth2->fetchrow_array) {
2982 $sthr->execute(@clonedata);
2983 }
2984 } else {
2985##fixme: Hardcoding is Bad, mmmmkaaaay?
2986 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2987 # could load from a config file, but somewhere along the line we need hardcoded bits.
2988 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2989 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2990 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2991 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2992 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2993 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2994 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2995 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2996 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2997 }
2998
2999 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
3000
3001 # once we get here, we should have suceeded.
3002 $dbh->commit;
3003 }; # end eval
3004
3005 if ($@) {
3006 my $msg = $@;
3007 eval { $dbh->rollback; };
3008 if ($self->{log_failures}) {
3009 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
3010 $dbh->commit;
3011 }
3012 return ('FAIL',$msg);
3013 }
3014
3015 return ('OK','OK');
3016} # end addGroup()
3017
3018
3019## DNSDB::delGroup()
3020# Delete a group.
3021# Takes a group ID
3022# Returns a status code and message
3023sub delGroup {
3024 my $self = shift;
3025 my $dbh = $self->{dbh};
3026 my $groupid = shift;
3027
3028 # Allow transactions, and raise an exception on errors so we can catch it later.
3029 # Use local to make sure these get "reset" properly on exiting this block
3030 local $dbh->{AutoCommit} = 0;
3031 local $dbh->{RaiseError} = 1;
3032
3033##fixme: locate "knowable" error conditions and deal with them before the eval
3034# ... or inside, whatever.
3035# -> domains still exist in group
3036# -> ...
3037 my $failmsg = '';
3038 my $resultmsg = '';
3039
3040 # collect some pieces for logging and error messages
3041 my $groupname = $self->groupName($groupid);
3042 my $parid = $self->parentID(id => $groupid, type => 'group');
3043
3044 # Wrap all the SQL in a transaction
3045 eval {
3046 # Check for Things in the group
3047 $failmsg = "Can't remove group $groupname";
3048 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
3049 die "$grpcnt groups still in group\n" if $grpcnt;
3050 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
3051 die "$domcnt domains still in group\n" if $domcnt;
3052 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
3053 die "$revcnt reverse zones still in group\n" if $revcnt;
3054 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
3055 die "$usercnt users still in group\n" if $usercnt;
3056
3057 $failmsg = "Failed to delete default records for $groupname";
3058 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
3059 $failmsg = "Failed to delete default reverse records for $groupname";
3060 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
3061 $failmsg = "Failed to remove group $groupname";
3062 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
3063
3064 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
3065 $resultmsg = "Deleted group $groupname";
3066
3067 # once we get here, we should have suceeded.
3068 $dbh->commit;
3069 }; # end eval
3070
3071 if ($@) {
3072 my $msg = $@;
3073 eval { $dbh->rollback; };
3074 if ($self->{log_failures}) {
3075 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
3076 $dbh->commit; # since we enabled transactions earlier
3077 }
3078 return ('FAIL',"$failmsg: $msg");
3079 }
3080
3081 return ('OK',$resultmsg);
3082} # end delGroup()
3083
3084
3085## DNSDB::getChildren()
3086# Get a list of all groups whose parent^n is group <n>
3087# Takes a database handle, group ID, reference to an array to put the group IDs in,
3088# and an optional flag to return only immediate children or all children-of-children
3089# default to returning all children
3090# Calls itself
3091sub getChildren {
3092 $errstr = '';
3093 my $self = shift;
3094 my $dbh = $self->{dbh};
3095 my $rootgroup = shift;
3096 my $groupdest = shift;
3097 my $immed = shift || 'all';
3098
3099 # special break for default group; otherwise we get stuck.
3100 if ($rootgroup == 1) {
3101 # by definition, group 1 is the Root Of All Groups
3102 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
3103 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
3104 $sth->execute;
3105 while (my @this = $sth->fetchrow_array) {
3106 push @$groupdest, @this;
3107 }
3108 } else {
3109 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
3110 $sth->execute($rootgroup);
3111 return if $sth->rows == 0;
3112 my @grouplist;
3113 while (my ($group) = $sth->fetchrow_array) {
3114 push @$groupdest, $group;
3115 $self->getChildren($group, $groupdest) if $immed eq 'all';
3116 }
3117 }
3118} # end getChildren()
3119
3120
3121## DNSDB::groupName()
3122# Return the group name based on a group ID
3123# Takes a database handle and the group ID
3124# Returns the group name or undef on failure
3125sub groupName {
3126 $errstr = '';
3127 my $self = shift;
3128 my $dbh = $self->{dbh};
3129 my $groupid = shift;
3130 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
3131 $sth->execute($groupid);
3132 my ($groupname) = $sth->fetchrow_array();
3133 $errstr = $DBI::errstr if !$groupname;
3134 return $groupname if $groupname;
3135} # end groupName
3136
3137
3138## DNSDB::getGroupCount()
3139# Get count of subgroups in group or groups
3140# Takes a database handle and hash containing:
3141# - the "current" group
3142# - an array of "acceptable" groups
3143# - Optionally accept a "starts with" and/or "contains" filter argument
3144# Returns an integer count of the resulting group list.
3145sub getGroupCount {
3146 my $self = shift;
3147 my $dbh = $self->{dbh};
3148
3149 my %args = @_;
3150
3151 # Fail on bad curgroup argument. There's no sane fallback on this one.
3152 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3153 $errstr = "Bad or missing curgroup argument";
3154 return;
3155 }
3156 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3157 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3158 $errstr = "Bad childlist argument";
3159 return;
3160 }
3161
3162 my @filterargs;
3163 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3164 push @filterargs, "^$args{startwith}" if $args{startwith};
3165 push @filterargs, $args{filter} if $args{filter};
3166
3167 my $sql = "SELECT count(*) FROM groups ".
3168 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3169 ($args{startwith} ? " AND group_name ~* ?" : '').
3170 ($args{filter} ? " AND group_name ~* ?" : '');
3171 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3172 $errstr = $dbh->errstr if !$count;
3173 return $count;
3174} # end getGroupCount
3175
3176
3177## DNSDB::getGroupList()
3178# Get a list of sub^n-groups in the specified group(s)
3179# Takes the same arguments as getGroupCount() above
3180# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
3181sub getGroupList {
3182 my $self = shift;
3183 my $dbh = $self->{dbh};
3184
3185 my %args = @_;
3186
3187 # Fail on bad curgroup argument. There's no sane fallback on this one.
3188 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3189 $errstr = "Bad or missing curgroup argument";
3190 return;
3191 }
3192 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3193 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3194 $errstr = "Bad childlist argument";
3195 return;
3196 }
3197
3198 my @filterargs;
3199 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3200 push @filterargs, "^$args{startwith}" if $args{startwith};
3201 push @filterargs, $args{filter} if $args{filter};
3202
3203 # protection against bad or missing arguments
3204 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3205 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3206 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3207
3208 # munge sortby for columns in database
3209 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
3210 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
3211
3212 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
3213 FROM groups g
3214 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
3215 ).
3216 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3217 ($args{startwith} ? " AND g.group_name ~* ?" : '').
3218 ($args{filter} ? " AND g.group_name ~* ?" : '').
3219 " GROUP BY g.group_id, g.group_name, g2.group_name ".
3220 " ORDER BY $args{sortby} $args{sortorder} ".
3221 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3222 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3223 $errstr = $dbh->errstr if !$glist;
3224
3225 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
3226 # this means there's lots of crunching needed to trim the result set back down.
3227 # So instead we track the order of the groups, and push the counts into the
3228 # arrayref result separately.
3229##fixme: put this whole sub in a transaction? might be
3230# needed for accurate results on very busy systems.
3231##fixme: large group lists need prepared statements?
3232#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
3233#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
3234#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
3235 foreach (@{$glist}) {
3236 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
3237 $$_{nusers} = $ucnt;
3238 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
3239 $$_{ndomains} = $dcnt;
3240 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
3241 $$_{nrevzones} = $rcnt;
3242 }
3243
3244 return $glist;
3245} # end getGroupList
3246
3247
3248## DNSDB::groupID()
3249# Return the group ID based on the group name
3250# Takes a database handle and the group name
3251# Returns the group ID or undef on failure
3252sub groupID {
3253 $errstr = '';
3254 my $self = shift;
3255 my $dbh = $self->{dbh};
3256 my $group = shift;
3257 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
3258 $errstr = $DBI::errstr if !$grpid;
3259 return $grpid if $grpid;
3260} # end groupID()
3261
3262
3263## DNSDB::addUser()
3264# Add a user.
3265# Takes a DB handle, username, group ID, password, state (active/inactive).
3266# Optionally accepts:
3267# user type (user/admin) - defaults to user
3268# permissions string - defaults to inherit from group
3269# three valid forms:
3270# i - Inherit permissions
3271# c:<user_id> - Clone permissions from <user_id>
3272# C:<permission list> - Set these specific permissions
3273# first name - defaults to username
3274# last name - defaults to blank
3275# phone - defaults to blank (could put other data within column def)
3276# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
3277sub addUser {
3278 $errstr = '';
3279 my $self = shift;
3280 my $dbh = $self->{dbh};
3281 my $username = shift;
3282 my $group = shift;
3283 my $pass = shift;
3284 my $state = shift;
3285
3286 return ('FAIL', "Missing one or more required entries") if !defined($state);
3287 return ('FAIL', "Username must not be blank") if !$username;
3288
3289 # Munge in some alternate state values
3290 $state = 1 if $state =~ /^active$/;
3291 $state = 1 if $state =~ /^on$/;
3292 $state = 0 if $state =~ /^inactive$/;
3293 $state = 0 if $state =~ /^off$/;
3294
3295 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
3296
3297 my $permstring = shift || 'i'; # default is to inhert permissions from group
3298
3299 my $fname = shift || $username;
3300 my $lname = shift || '';
3301 my $phone = shift || ''; # not going format-check
3302
3303 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
3304 my $user_id;
3305
3306# quick check to start to see if we've already got one
3307 $sth->execute($username);
3308 ($user_id) = $sth->fetchrow_array;
3309
3310 return ('FAIL', "User already exists") if $user_id;
3311
3312 # Allow transactions, and raise an exception on errors so we can catch it later.
3313 # Use local to make sure these get "reset" properly on exiting this block
3314 local $dbh->{AutoCommit} = 0;
3315 local $dbh->{RaiseError} = 1;
3316
3317 # Wrap all the SQL in a transaction
3318 eval {
3319 # insert the user... note we set inherited perms by default since
3320 # it's simple and cleans up some other bits of state
3321##fixme: need better handling of case of inherited or missing (!!) permissions entries
3322 my $sth = $dbh->prepare("INSERT INTO users ".
3323 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
3324 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
3325 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
3326
3327 # get the ID...
3328 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
3329
3330# Permissions! Gotta set'em all!
3331 die "Invalid permission string $permstring\n"
3332 if $permstring !~ /^(?:
3333 i # inherit
3334 |c:\d+ # clone
3335 # custom. no, the leading , is not a typo
3336 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
3337 )$/x;
3338# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
3339 if ($permstring ne 'i') {
3340 # for cloned or custom permissions, we have to create a new permissions entry.
3341 my $clonesrc = $group;
3342 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
3343 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
3344 "SELECT $permlist,? FROM permissions WHERE permission_id=".
3345 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
3346 undef, ($user_id,$clonesrc) );
3347 $dbh->do("UPDATE users SET permission_id=".
3348 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
3349 "WHERE user_id=?", undef, ($user_id, $user_id) );
3350 }
3351 if ($permstring =~ /^C:/) {
3352 # finally for custom permissions, we set the passed-in permissions (and unset
3353 # any that might have been brought in by the clone operation above)
3354 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
3355 undef, ($user_id) );
3356 foreach (@permtypes) {
3357 if ($permstring =~ /,$_/) {
3358 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
3359 } else {
3360 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
3361 }
3362 }
3363 }
3364
3365 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
3366
3367##fixme: add another table to hold name/email for log table?
3368
3369 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
3370 # once we get here, we should have suceeded.
3371 $dbh->commit;
3372 }; # end eval
3373
3374 if ($@) {
3375 my $msg = $@;
3376 eval { $dbh->rollback; };
3377 if ($self->{log_failures}) {
3378 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
3379 $dbh->commit; # since we enabled transactions earlier
3380 }
3381 return ('FAIL',"Error adding user $username: $msg");
3382 }
3383
3384 return ('OK',"User $username ($fname $lname) added");
3385} # end addUser
3386
3387
3388## DNSDB::getUserCount()
3389# Get count of users in group
3390# Takes a database handle and hash containing at least the current group, and optionally:
3391# - a reference list of secondary groups
3392# - a filter string
3393# - a "Starts with" string
3394sub getUserCount {
3395 my $self = shift;
3396 my $dbh = $self->{dbh};
3397
3398 my %args = @_;
3399
3400 # Fail on bad curgroup argument. There's no sane fallback on this one.
3401 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3402 $errstr = "Bad or missing curgroup argument";
3403 return;
3404 }
3405 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3406 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3407 $errstr = "Bad childlist argument";
3408 return;
3409 }
3410
3411 my @filterargs;
3412 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3413 push @filterargs, "^$args{startwith}" if $args{startwith};
3414 push @filterargs, $args{filter} if $args{filter};
3415
3416 my $sql = "SELECT count(*) FROM users ".
3417 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3418 ($args{startwith} ? " AND username ~* ?" : '').
3419 ($args{filter} ? " AND username ~* ?" : '');
3420 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3421 $errstr = $dbh->errstr if !$count;
3422 return $count;
3423} # end getUserCount()
3424
3425
3426## DNSDB::getUserList()
3427# Get list of users
3428# Takes the same arguments as getUserCount() above, plus optional:
3429# - sort field
3430# - sort order
3431# - offset/return-all-everything flag (defaults to $perpage records)
3432sub getUserList {
3433 my $self = shift;
3434 my $dbh = $self->{dbh};
3435
3436 my %args = @_;
3437
3438 # Fail on bad curgroup argument. There's no sane fallback on this one.
3439 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3440 $errstr = "Bad or missing curgroup argument";
3441 return;
3442 }
3443 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3444 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3445 $errstr = "Bad childlist argument";
3446 return;
3447 }
3448
3449 my @filterargs;
3450 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3451 push @filterargs, "^$args{startwith}" if $args{startwith};
3452 push @filterargs, $args{filter} if $args{filter};
3453
3454 # better to request sorts on "simple" names, but it means we need to map it to real columns
3455 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3456 fname => 'fname');
3457 $args{sortby} = $sortmap{$args{sortby}};
3458
3459 # protection against bad or missing arguments
3460 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3461 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3462 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3463
3464 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3465 "FROM users u ".
3466 "INNER JOIN groups g ON u.group_id=g.group_id ".
3467 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3468 ($args{startwith} ? " AND u.username ~* ?" : '').
3469 ($args{filter} ? " AND u.username ~* ?" : '').
3470 " AND NOT u.type = 'R' ".
3471 " ORDER BY $args{sortby} $args{sortorder} ".
3472 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3473 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3474 $errstr = $dbh->errstr if !$ulist;
3475 return $ulist;
3476} # end getUserList()
3477
3478
3479## DNSDB::getUserDropdown()
3480# Get a list of usernames for use in a dropdown menu.
3481# Takes a database handle, current group, and optional "tag this as selected" flag.
3482# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3483sub getUserDropdown {
3484 my $self = shift;
3485 my $dbh = $self->{dbh};
3486 my $grp = shift;
3487 my $sel = shift || 0;
3488
3489 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3490 $sth->execute($grp);
3491
3492 my @userlist;
3493 while (my ($username,$uid) = $sth->fetchrow_array) {
3494 my %row = (
3495 username => $username,
3496 uid => $uid,
3497 selected => ($sel == $uid ? 1 : 0)
3498 );
3499 push @userlist, \%row;
3500 }
3501 return \@userlist;
3502} # end getUserDropdown()
3503
3504
3505## DNSDB:: updateUser()
3506# Update general data about user
3507sub updateUser {
3508 my $self = shift;
3509 my $dbh = $self->{dbh};
3510
3511##fixme: tweak calling convention so that we can update any given bit of data
3512 my $uid = shift;
3513 my $username = shift;
3514 my $group = shift;
3515 my $pass = shift;
3516 my $state = shift;
3517 my $type = shift || 'u';
3518 my $fname = shift || $username;
3519 my $lname = shift || '';
3520 my $phone = shift || ''; # not going format-check
3521
3522 my $resultmsg = '';
3523
3524 # Munge in some alternate state values
3525 $state = 1 if $state =~ /^active$/;
3526 $state = 1 if $state =~ /^on$/;
3527 $state = 0 if $state =~ /^inactive$/;
3528 $state = 0 if $state =~ /^off$/;
3529
3530 # Allow transactions, and raise an exception on errors so we can catch it later.
3531 # Use local to make sure these get "reset" properly on exiting this block
3532 local $dbh->{AutoCommit} = 0;
3533 local $dbh->{RaiseError} = 1;
3534
3535 my $sth;
3536
3537 # Password can be left blank; if so we assume there's one on file.
3538 # Actual blank passwords are bad, mm'kay?
3539 if (!$pass) {
3540 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3541 } else {
3542 $pass = unix_md5_crypt($pass);
3543 }
3544
3545 eval {
3546 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3547 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3548 $resultmsg = "Updated user info for $username ($fname $lname)";
3549 $self->_log(group_id => $group, entry => $resultmsg);
3550 $dbh->commit;
3551 };
3552 if ($@) {
3553 my $msg = $@;
3554 eval { $dbh->rollback; };
3555 if ($self->{log_failures}) {
3556 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3557 $dbh->commit; # since we enabled transactions earlier
3558 }
3559 return ('FAIL',"Error updating user $username: $msg");
3560 }
3561
3562 return ('OK',$resultmsg);
3563} # end updateUser()
3564
3565
3566## DNSDB::delUser()
3567# Delete a user.
3568# Takes a database handle and user ID
3569# Returns a success/failure code and matching message
3570sub delUser {
3571 my $self = shift;
3572 my $dbh = $self->{dbh};
3573 my $userid = shift;
3574
3575 return ('FAIL',"Bad userid") if !defined($userid);
3576
3577 my $userdata = $self->getUserData($userid);
3578
3579 # Allow transactions, and raise an exception on errors so we can catch it later.
3580 # Use local to make sure these get "reset" properly on exiting this block
3581 local $dbh->{AutoCommit} = 0;
3582 local $dbh->{RaiseError} = 1;
3583
3584 eval {
3585 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3586 $self->_log(group_id => $userdata->{group_id},
3587 entry => "Deleted user ID $userid/".$userdata->{username}.
3588 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3589 $dbh->commit;
3590 };
3591 if ($@) {
3592 my $msg = $@;
3593 eval { $dbh->rollback; };
3594 if ($self->{log_failures}) {
3595 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3596 "$userid/".$userdata->{username}.": $msg");
3597 $dbh->commit;
3598 }
3599 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3600 }
3601
3602 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3603} # end delUser
3604
3605
3606## DNSDB::userFullName()
3607# Return a pretty string!
3608# Takes a user_id and optional printf-ish string to indicate which pieces where:
3609# %u for the username
3610# %f for the first name
3611# %l for the last name
3612# All other text in the passed string will be left as-is.
3613##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3614sub userFullName {
3615 $errstr = '';
3616 my $self = shift;
3617 my $dbh = $self->{dbh};
3618 my $userid = shift;
3619 my $fullformat = shift || '%f %l (%u)';
3620 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3621 $sth->execute($userid);
3622 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3623 $errstr = $DBI::errstr if !$uname;
3624
3625 $fullformat =~ s/\%u/$uname/g;
3626 $fullformat =~ s/\%f/$fname/g;
3627 $fullformat =~ s/\%l/$lname/g;
3628
3629 return $fullformat;
3630} # end userFullName
3631
3632
3633## DNSDB::userStatus()
3634# Sets and/or returns a user's status
3635# Takes a database handle, user ID and optionally a status argument
3636# Returns undef on errors.
3637sub userStatus {
3638 my $self = shift;
3639 my $dbh = $self->{dbh};
3640 my $id = shift;
3641 my $newstatus = shift || 'mu';
3642
3643 return undef if $id !~ /^\d+$/;
3644
3645 my $userdata = $self->getUserData($id);
3646
3647 # Allow transactions, and raise an exception on errors so we can catch it later.
3648 # Use local to make sure these get "reset" properly on exiting this block
3649 local $dbh->{AutoCommit} = 0;
3650 local $dbh->{RaiseError} = 1;
3651
3652 if ($newstatus ne 'mu') {
3653 # ooo, fun! let's see what we were passed for status
3654 eval {
3655 $newstatus = 0 if $newstatus eq 'useroff';
3656 $newstatus = 1 if $newstatus eq 'useron';
3657 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3658
3659 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3660 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3661
3662 my %loghash;
3663 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3664 $loghash{entry} = $resultstr;
3665 $self->_log(%loghash);
3666
3667 $dbh->commit;
3668 };
3669 if ($@) {
3670 my $msg = $@;
3671 eval { $dbh->rollback; };
3672 $resultstr = '';
3673 $errstr = $msg;
3674##fixme: failure logging?
3675 return;
3676 }
3677 }
3678
3679 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3680 return $status;
3681} # end userStatus()
3682
3683
3684## DNSDB::getUserData()
3685# Get misc user data for display
3686sub getUserData {
3687 my $self = shift;
3688 my $dbh = $self->{dbh};
3689 my $uid = shift;
3690
3691 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3692 "FROM users WHERE user_id=?");
3693 $sth->execute($uid);
3694 return $sth->fetchrow_hashref();
3695} # end getUserData()
3696
3697
3698## DNSDB::addLoc()
3699# Add a new location.
3700# Takes a database handle, group ID, short and long description, and a comma-separated
3701# list of IP addresses.
3702# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3703sub addLoc {
3704 my $self = shift;
3705 my $dbh = $self->{dbh};
3706 my $grp = shift;
3707 my $shdesc = shift;
3708 my $comments = shift;
3709 my $iplist = shift;
3710
3711 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3712 $comments = '' if !$comments;
3713 $iplist = '' if !$iplist;
3714
3715 my $loc;
3716
3717 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3718 # for now; 676 locations should satisfy all but the largest of the huge networks.
3719 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3720 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3721
3722 # and just to be as clear as possible; as per http://cr.yp.to/djbdns/tinydns-data.html:
3723
3724#For versions 1.04 and above: You may include a client location on each line. The line is ignored for clients
3725#outside that location. Client locations are specified by % lines:
3726#
3727# %lo:ipprefix
3728#
3729#means that IP addresses starting with ipprefix are in location lo. lo is a sequence of one or two ASCII letters.
3730
3731 # so locations could probably include both upper and lower case.
3732
3733# add just after "my $origloc = $loc;":
3734# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3735# # and wrap it around.
3736# # Yes, they skip a couple of possibles. No, I don't care.
3737# $loc = 'aA' if $loc eq 'zz';
3738# $loc = 'Aa' if $loc eq 'zZ';
3739# $loc = 'ZA' if $loc eq 'Zz';
3740# $loc = 'aa' if $loc eq 'ZZ';
3741
3742 # Allow transactions, and raise an exception on errors so we can catch it later.
3743 # Use local to make sure these get "reset" properly on exiting this block
3744 local $dbh->{AutoCommit} = 0;
3745 local $dbh->{RaiseError} = 1;
3746
3747##fixme: There is probably a far better way to do this. Sequential increments
3748# are marginally less stupid that pure random generation though, and the existence
3749# check makes sure we don't stomp on an imported one.
3750
3751 eval {
3752 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3753 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3754 ($loc) = ($loc =~ /^(..)/) if $loc;
3755 my $origloc = $loc;
3756 $loc = 'aa' if !$loc;
3757 # Make a change...
3758 $loc++;
3759 # ... and keep changing if it exists
3760 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3761 $loc++;
3762 ($loc) = ($loc =~ /^(..)/);
3763 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3764##fixme: really need to handle this case faster somehow
3765#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3766 }
3767 # And now we should have a unique location. tinydns fundamentally limits the
3768 # number of these but there's no doc on what characters are valid.
3769 $shdesc = $loc if !$shdesc;
3770 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3771 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3772 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3773 $dbh->commit;
3774 };
3775 if ($@) {
3776 my $msg = $@;
3777 eval { $dbh->rollback; };
3778 if ($self->{log_failures}) {
3779 $shdesc = $loc if !$shdesc;
3780 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3781 $dbh->commit;
3782 }
3783 return ('FAIL',$msg);
3784 }
3785
3786 return ('OK',$loc);
3787} # end addLoc()
3788
3789
3790## DNSDB::updateLoc()
3791# Update details of a location.
3792# Takes a database handle, location ID, group ID, short description,
3793# long comments/notes, and comma/space-separated IP list
3794# Returns a result code and message
3795sub updateLoc {
3796 my $self = shift;
3797 my $dbh = $self->{dbh};
3798 my $loc = shift;
3799 my $grp = shift;
3800 my $shdesc = shift;
3801 my $comments = shift;
3802 my $iplist = shift;
3803
3804 $shdesc = '' if !$shdesc;
3805 $comments = '' if !$comments;
3806 $iplist = '' if !$iplist;
3807
3808 # Allow transactions, and raise an exception on errors so we can catch it later.
3809 # Use local to make sure these get "reset" properly on exiting this block
3810 local $dbh->{AutoCommit} = 0;
3811 local $dbh->{RaiseError} = 1;
3812
3813 my $oldloc = $self->getLoc($loc);
3814 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3815
3816 eval {
3817 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3818 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3819 $self->_log(entry => $okmsg);
3820 $dbh->commit;
3821 };
3822 if ($@) {
3823 my $msg = $@;
3824 eval { $dbh->rollback; };
3825 if ($self->{log_failures}) {
3826 $shdesc = $loc if !$shdesc;
3827 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3828 $dbh->commit;
3829 }
3830 return ('FAIL',$msg);
3831 }
3832
3833 return ('OK',$okmsg);
3834} # end updateLoc()
3835
3836
3837## DNSDB::delLoc()
3838sub delLoc {
3839 my $self = shift;
3840 my $dbh = $self->{dbh};
3841 my $loc = shift;
3842
3843 # Allow transactions, and raise an exception on errors so we can catch it later.
3844 # Use local to make sure these get "reset" properly on exiting this block
3845 local $dbh->{AutoCommit} = 0;
3846 local $dbh->{RaiseError} = 1;
3847
3848 my $oldloc = $self->getLoc($loc);
3849 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3850 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3851
3852 eval {
3853 # Check for records with this location first. Deleting a location without deleting records
3854 # tagged for that location will render them unpublished without other warning.
3855 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3856 die "Records still exist in location $olddesc\n" if $r;
3857 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3858 $self->_log(entry => $okmsg);
3859 $dbh->commit;
3860 };
3861 if ($@) {
3862 my $msg = $@;
3863 eval { $dbh->rollback; };
3864 if ($self->{log_failures}) {
3865 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3866 $dbh->commit;
3867 }
3868 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3869 }
3870
3871 return ('OK',$okmsg);
3872} # end delLoc()
3873
3874
3875## DNSDB::getLoc()
3876# Get details about a location/view
3877# Takes a database handle and location ID.
3878# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3879sub getLoc {
3880 my $self = shift;
3881 my $dbh = $self->{dbh};
3882 my $loc = shift;
3883
3884 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3885 $sth->execute($loc);
3886 return $sth->fetchrow_hashref();
3887} # end getLoc()
3888
3889
3890## DNSDB::getLocCount()
3891# Get count of locations/views
3892# Takes a database handle and hash containing at least the current group, and optionally:
3893# - a reference list of secondary groups
3894# - a filter string
3895# - a "Starts with" string
3896sub getLocCount {
3897 my $self = shift;
3898 my $dbh = $self->{dbh};
3899
3900 my %args = @_;
3901
3902 # Fail on bad curgroup argument. There's no sane fallback on this one.
3903 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3904 $errstr = "Bad or missing curgroup argument";
3905 return;
3906 }
3907 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3908 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3909 $errstr = "Bad childlist argument";
3910 return;
3911 }
3912
3913 my @filterargs;
3914 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3915 push @filterargs, "^$args{startwith}" if $args{startwith};
3916 push @filterargs, $args{filter} if $args{filter};
3917
3918 my $sql = "SELECT count(*) FROM locations ".
3919 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3920 ($args{startwith} ? " AND description ~* ?" : '').
3921 ($args{filter} ? " AND description ~* ?" : '');
3922 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3923 $errstr = $dbh->errstr if !$count;
3924 return $count;
3925} # end getLocCount()
3926
3927
3928## DNSDB::getLocList()
3929sub getLocList {
3930 my $self = shift;
3931 my $dbh = $self->{dbh};
3932
3933 my %args = @_;
3934
3935 # Fail on bad curgroup argument. There's no sane fallback on this one.
3936 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3937 $errstr = "Bad or missing curgroup argument";
3938 return;
3939 }
3940 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3941 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3942 $errstr = "Bad childlist argument";
3943 return;
3944 }
3945
3946 my @filterargs;
3947 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3948 push @filterargs, "^$args{startwith}" if $args{startwith};
3949 push @filterargs, $args{filter} if $args{filter};
3950
3951 # better to request sorts on "simple" names, but it means we need to map it to real columns
3952# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3953# fname => 'fname');
3954# $args{sortby} = $sortmap{$args{sortby}};
3955
3956 # protection against bad or missing arguments
3957 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3958 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3959 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3960
3961 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3962 "FROM locations l ".
3963 "INNER JOIN groups g ON l.group_id=g.group_id ".
3964 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3965 ($args{startwith} ? " AND l.description ~* ?" : '').
3966 ($args{filter} ? " AND l.description ~* ?" : '').
3967 " ORDER BY $args{sortby} $args{sortorder} ".
3968 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3969 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3970 $errstr = $dbh->errstr if !$ulist;
3971 return $ulist;
3972} # end getLocList()
3973
3974
3975## DNSDB::getLocDropdown()
3976# Get a list of location names for use in a dropdown menu.
3977# Takes a database handle, current group, and optional "tag this as selected" flag.
3978# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3979sub getLocDropdown {
3980 my $self = shift;
3981 my $dbh = $self->{dbh};
3982 my $grp = shift;
3983 my $sel = shift || '';
3984
3985 my $sth = $dbh->prepare(qq(
3986 SELECT description,location FROM locations
3987 WHERE group_id=?
3988 ORDER BY description
3989 ) );
3990 $sth->execute($grp);
3991
3992 my @loclist;
3993 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3994 while (my ($locname, $loc) = $sth->fetchrow_array) {
3995 my %row = (
3996 locname => $locname,
3997 loc => $loc,
3998 selected => ($sel eq $loc ? 1 : 0)
3999 );
4000 push @loclist, \%row;
4001 }
4002 return \@loclist;
4003} # end getLocDropdown()
4004
4005
4006## DNSDB::getSOA()
4007# Return all suitable fields from an SOA record in separate elements of a hash
4008# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
4009sub getSOA {
4010 $errstr = '';
4011 my $self = shift;
4012 my $dbh = $self->{dbh};
4013 my $def = shift;
4014 my $rev = shift;
4015 my $id = shift;
4016
4017 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
4018 # - should really attach serial to the zone parent somewhere
4019
4020 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
4021 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
4022 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
4023 return if !$ret;
4024##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
4025
4026 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
4027 delete $ret->{host};
4028 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
4029 delete $ret->{val};
4030
4031 return $ret;
4032} # end getSOA()
4033
4034
4035## DNSDB::updateSOA()
4036# Update the specified SOA record
4037# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
4038# Returns a two-element list with a result code and message
4039sub updateSOA {
4040 my $self = shift;
4041 my $dbh = $self->{dbh};
4042 my $defrec = shift;
4043 my $revrec = shift;
4044
4045 my %soa = @_;
4046
4047 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
4048
4049 my $msg;
4050 my %logdata;
4051 if ($defrec eq 'n') {
4052 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
4053 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
4054 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
4055 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
4056 } else {
4057 $logdata{group_id} = $soa{id};
4058 }
4059 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
4060 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
4061
4062 # Allow transactions, and raise an exception on errors so we can catch it later.
4063 # Use local to make sure these get "reset" properly on exiting this block
4064 local $dbh->{AutoCommit} = 0;
4065 local $dbh->{RaiseError} = 1;
4066
4067 eval {
4068 if (!$oldsoa) {
4069 # old SOA record is missing for some reason. create a new one.
4070 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
4071 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
4072 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
4073 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
4074 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
4075 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
4076 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
4077 } else {
4078 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
4079 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
4080 $soa{ttl}, $oldsoa->{record_id}) );
4081 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
4082 "SOA for $parname: ".
4083 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
4084 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
4085 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
4086 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
4087 }
4088 $logdata{entry} = $msg;
4089 $self->_log(%logdata);
4090
4091 $dbh->commit;
4092 };
4093 if ($@) {
4094 $msg = $@;
4095 eval { $dbh->rollback; };
4096 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
4097 "SOA record for $parname: $msg";
4098 if ($self->{log_failures}) {
4099 $self->_log(%logdata);
4100 $dbh->commit;
4101 }
4102 return ('FAIL', $logdata{entry});
4103 } else {
4104 return ('OK', $msg);
4105 }
4106} # end updateSOA()
4107
4108
4109## DNSDB::getRecLine()
4110# Return all data fields for a zone record in separate elements of a hash
4111# Takes a database handle, default/live flag, forward/reverse flag, and record ID
4112sub getRecLine {
4113 $errstr = '';
4114 my $self = shift;
4115 my $dbh = $self->{dbh};
4116 my $defrec = shift;
4117 my $revrec = shift;
4118 my $id = shift;
4119
4120##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
4121 my $sql = "SELECT record_id,host,type,val,ttl".
4122 ($defrec eq 'n' ? ',location' : '').
4123 ($revrec eq 'n' ? ',distance,weight,port' : '').
4124 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
4125 _rectable($defrec,$revrec)." WHERE record_id=?";
4126 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
4127
4128 if ($dbh->err) {
4129 $errstr = $DBI::errstr;
4130 return undef;
4131 }
4132
4133 if (!$ret) {
4134 $errstr = "No such record";
4135 return undef;
4136 }
4137
4138 # explicitly set a parent id
4139 if ($defrec eq 'y') {
4140 $ret->{parid} = $ret->{group_id};
4141 } else {
4142 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
4143 # and a secondary if we have a custom type that lives in both a forward and reverse zone
4144 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
4145 }
4146 $ret->{address} = $ret->{val}; # because.
4147
4148 return $ret;
4149}
4150
4151
4152##fixme: should use above (getRecLine()) to get lines for below?
4153## DNSDB::getRecList()
4154# Return records for a group or zone
4155# Takes a default/live flag, group or zone ID, start,
4156# number of records, sort field, and sort order
4157# Returns a reference to an array of hashes
4158sub getRecList {
4159 $errstr = '';
4160 my $self = shift;
4161 my $dbh = $self->{dbh};
4162
4163 my %args = @_;
4164
4165 $args{revrec} = 'n' if !$args{revrec};
4166 $args{defrec} = 'n' if !$args{defrec};
4167
4168 # protection against bad or missing arguments
4169 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4170 my $defsort;
4171 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
4172 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
4173 $args{sortby} = '' if !$args{sortby};
4174 $args{sortby} = $defsort if !$args{revrec};
4175 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
4176 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4177 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
4178
4179
4180##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
4181 my @bindvars;
4182 my $sql = "SELECT r.record_id,";
4183 # only include the parent info if we don't already know which parent we're in
4184 $sql .= "r.domain_id,r.rdns_id," unless $args{id};
4185 $sql .= "r.host,r.type,r.val,r.ttl";
4186 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
4187 if $args{defrec} eq 'n';
4188 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
4189 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
4190 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
4191 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
4192 $sql .= "WHERE NOT r.type=$reverse_typemap{SOA}";
4193
4194 # "normal" record list
4195 if ($args{id}) {
4196 $sql .= " AND "._recparent($args{defrec},$args{revrec})." = ?";
4197 push @bindvars, $args{id};
4198 }
4199
4200 # Filtering on host/val (mainly normal record list)
4201 if ($args{filter}) {
4202 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
4203 my $tmp = join('.',reverse(split(/\./,$args{filter})));
4204 push @bindvars, ($args{filter},$args{filter});
4205 push @bindvars, ($tmp, $tmp);
4206 }
4207
4208 # Filtering on other fields
4209 foreach (qw(type distance weight port ttl description)) {
4210 if ($args{$_}) {
4211 $sql .= " AND $_ ~* ?";
4212 push @bindvars, $args{$_};
4213 }
4214 }
4215
4216 # whee! multisort means just passing comma-separated fields in sortby!
4217 my $newsort = '';
4218 foreach my $sf (split /,/, $args{sortby}) {
4219 $sf = "r.$sf";
4220 # sort on IP, correctly
4221 $sf =~ s/r\.val/inetlazy(r.val)/;
4222# hmm. do we really need to limit this?
4223# if $args{revrec} eq 'y' && $args{defrec} eq 'n';
4224 $sf =~ s/r\.type/t.alphaorder/; # subtly different from sorting on rectypes.name
4225 $newsort .= ",$sf";
4226 }
4227 $newsort =~ s/^,//;
4228##enhance: pass in ascending/descending sort per-field
4229 $sql .= " ORDER BY $newsort $args{sortorder}";
4230 # ensure consistent ordering by sorting on record_id too
4231 $sql .= ", record_id $args{sortorder}";
4232
4233 # Offset/pagination
4234 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
4235
4236 my @working;
4237 my $recsth = $dbh->prepare($sql);
4238 $recsth->execute(@bindvars);
4239 while (my $rec = $recsth->fetchrow_hashref) {
4240 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
4241 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
4242 $rec->{val} !~ /\.arpa$/ ) {
4243 # skip all reverse zone .arpa "hostnames" since they're already .arpa names.
4244##enhance: extend {showrev_arpa} eq 'record' to specify record types
4245 my $tmpip = new NetAddr::IP $rec->{val} if $rec->{val} =~ /^(?:[\d.\/]+|[a-fA-F0-9:\/]+)$/;
4246 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
4247 }
4248 push @working, $rec;
4249 }
4250 return \@working;
4251} # end getRecList()
4252
4253
4254## DNSDB::getRecCount()
4255# Return count of non-SOA records in zone (or default records in a group)
4256# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
4257# and optional filtering modifier
4258# Returns the count
4259sub getRecCount {
4260 my $self = shift;
4261 my $dbh = $self->{dbh};
4262
4263 my %args = @_;
4264
4265 $args{defrec} = 'n' if !$args{defrec};
4266 $args{revrec} = 'n' if !$args{revrec};
4267
4268 my @bindvars;
4269 my $sql = "SELECT count(*) FROM ".
4270 _rectable($args{defrec},$args{revrec}).
4271 " r WHERE NOT type=$reverse_typemap{SOA}";
4272 if ($args{id}) {
4273 $sql .= " AND "._recparent($args{defrec},$args{revrec})." = ?";
4274 push @bindvars, $args{id};
4275 }
4276
4277 # Filtering on host/val (mainly normal record list)
4278 if ($args{filter}) {
4279 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
4280 my $tmp = join('.',reverse(split(/\./,$args{filter})));
4281 push @bindvars, ($args{filter},$args{filter});
4282 push @bindvars, ($tmp, $tmp);
4283 }
4284
4285 # Filtering on other fields
4286 foreach (qw(type distance weight port ttl description)) {
4287 if ($args{$_}) {
4288 $sql .= " AND $_ ~* ?";
4289 push @bindvars, $args{$_};
4290 }
4291 }
4292
4293 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
4294
4295 return $count;
4296
4297} # end getRecCount()
4298
4299
4300## DNSDB::addRec()
4301# Add a new record to a domain or a group's default records
4302# Takes a database handle, default/live flag, group/domain ID,
4303# host, type, value, and TTL
4304# Some types require additional detail: "distance" for MX and SRV,
4305# and weight/port for SRV
4306# Returns a status code and detail message in case of error
4307##fixme: pass a hash with the record data, not a series of separate values
4308sub addRec {
4309 $errstr = '';
4310 my $self = shift;
4311 my $dbh = $self->{dbh};
4312 my $defrec = shift;
4313 my $revrec = shift;
4314 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
4315 # domain_id for domain records)
4316
4317 my $host = shift;
4318 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
4319 my $val = shift;
4320 my $ttl = shift;
4321 my $location = shift;
4322 $location = '' if !$location;
4323
4324 my $expires = shift || '';
4325 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4326 $expires = 0 if $expires eq 'after';
4327 my $stamp = shift;
4328 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4329
4330 # extra safety net - apparently RPC can squeak this by. O_o
4331 return ('FAIL', "host must contain a value") if !$$host;
4332 return ('FAIL', "val must contain a value") if !$$val;
4333
4334 # Spaces are evil.
4335 $$host =~ s/^\s+//;
4336 $$host =~ s/\s+$//;
4337 if ($typemap{$$rectype} ne 'TXT') {
4338 # Leading or trailng spaces could be legit in TXT records.
4339 $$val =~ s/^\s+//;
4340 $$val =~ s/\s+$//;
4341 }
4342
4343 _caseclean($rectype, $host, $val, $defrec, $revrec) if $self->{lowercase};
4344
4345 # prep for validation
4346 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4347 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4348
4349 my $domid = 0;
4350 my $revid = 0;
4351
4352 my $retcode = 'OK'; # assume everything will go OK
4353 my $retmsg = '';
4354
4355 # do simple validation first
4356 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4357
4358 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
4359 my $dist = shift;
4360 my $weight = shift;
4361 my $port = shift;
4362
4363 my $fields;
4364 my @vallist;
4365
4366 # Call the validation sub for the type requested.
4367 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
4368 host => $host, rectype => $rectype, val => $val, addr => $addr,
4369 dist => \$dist, port => \$port, weight => \$weight,
4370 fields => \$fields, vallist => \@vallist);
4371
4372 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4373
4374 # Set up database fields and bind parameters
4375 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4376 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
4377
4378 if ($defrec eq 'n') {
4379 # locations are not for default records, silly coder!
4380 $fields .= ",location";
4381 push @vallist, $location;
4382 # timestamps are rare.
4383 if ($stamp) {
4384 $fields .= ",stamp,expires,stampactive";
4385 push @vallist, $stamp, $expires, 'y';
4386 } else {
4387 $fields .= ",stampactive";
4388 push @vallist, 'n';
4389 }
4390 }
4391
4392 # a little magic to get the right number of ? placeholders based on how many values we're providing
4393 my $vallen = '?'.(',?'x$#vallist);
4394
4395 # Put together the success log entry. We have to use this horrible kludge
4396 # because domain_id and rdns_id may or may not be present, and if they are,
4397 # they're not at a guaranteed consistent index in the array. wheee!
4398 my %logdata;
4399 my @ftmp = split /,/, $fields;
4400 for (my $i=0; $i <= $#vallist; $i++) {
4401 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4402 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4403 }
4404 $logdata{group_id} = $id if $defrec eq 'y';
4405 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4406 if $defrec eq 'n';
4407 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
4408 # Log reverse records to match the formal .arpa tree
4409 if ($revrec eq 'y') {
4410 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
4411 } else {
4412 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
4413 }
4414
4415 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4416 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
4417 if $typemap{$$rectype} eq 'SRV';
4418 $logdata{entry} .= "', TTL $ttl";
4419 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4420 $logdata{entry} .= ($expires ? ', expires at ' : ', valid after ').$stamp if $stamp;
4421
4422 # Allow transactions, and raise an exception on errors so we can catch it later.
4423 # Use local to make sure these get "reset" properly on exiting this block
4424 local $dbh->{AutoCommit} = 0;
4425 local $dbh->{RaiseError} = 1;
4426
4427 eval {
4428 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
4429 undef, @vallist);
4430 $self->_log(%logdata);
4431 $dbh->commit;
4432 };
4433 if ($@) {
4434 my $msg = $@;
4435 eval { $dbh->rollback; };
4436 if ($self->{log_failures}) {
4437 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
4438 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
4439 $self->_log(%logdata);
4440 $dbh->commit;
4441 }
4442 return ('FAIL',$msg);
4443 }
4444
4445 $resultstr = $logdata{entry};
4446 return ($retcode, $retmsg);
4447
4448} # end addRec()
4449
4450
4451## DNSDB::updateRec()
4452# Update a record
4453# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
4454# Returns a status code and message
4455sub updateRec {
4456 $errstr = '';
4457
4458 my $self = shift;
4459 my $dbh = $self->{dbh};
4460
4461 my $defrec = shift;
4462 my $revrec = shift;
4463 my $id = shift;
4464 my $parid = shift; # immediate parent entity that we're descending from to update the record
4465
4466 # all records have these
4467 my $host = shift;
4468 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
4469 my $rectype = shift;
4470 my $val = shift;
4471 my $ttl = shift;
4472 my $location = shift; # may be empty/null/undef depending on caller
4473 $location = '' if !$location;
4474
4475 my $expires = shift || '';
4476 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4477 $expires = 0 if $expires eq 'after';
4478 my $stamp = shift;
4479 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4480
4481 # just set it to an empty string; failures will be caught later.
4482 $$host = '' if !$$host;
4483
4484 # Spaces are evil.
4485 $$host =~ s/^\s+//;
4486 $$host =~ s/\s+$//;
4487 if ($typemap{$$rectype} ne 'TXT') {
4488 # Leading or trailng spaces could be legit in TXT records.
4489 $$val =~ s/^\s+//;
4490 $$val =~ s/\s+$//;
4491 }
4492
4493 _caseclean($rectype, $host, $val, $defrec, $revrec) if $self->{lowercase};
4494
4495 # prep for validation
4496 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4497 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4498
4499 my $domid = 0;
4500 my $revid = 0;
4501
4502 my $retcode = 'OK'; # assume everything will go OK
4503 my $retmsg = '';
4504
4505 # do simple validation first
4506 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4507
4508 # only MX and SRV will use these
4509 my $dist = shift || 0;
4510 my $weight = shift || 0;
4511 my $port = shift || 0;
4512
4513 my $fields;
4514 my @vallist;
4515
4516 # get old record data so we have the right parent ID
4517 # and for logging (eventually)
4518 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4519
4520 # Call the validation sub for the type requested.
4521 # Note the ID to pass here is the *parent*, not the record
4522 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4523 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4524 host => $host, rectype => $rectype, val => $val, addr => $addr,
4525 dist => \$dist, port => \$port, weight => \$weight,
4526 fields => \$fields, vallist => \@vallist,
4527 update => $id);
4528
4529 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4530
4531 # Set up database fields and bind parameters. Note only the optional fields
4532 # (distance, weight, port, secondary parent ID) are added in the validation call above
4533 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4534 push @vallist, ($$host,$$rectype,$$val,$ttl,
4535 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4536
4537 if ($defrec eq 'n') {
4538 # locations are not for default records, silly coder!
4539 $fields .= ",location";
4540 push @vallist, $location;
4541 # timestamps are rare.
4542 if ($stamp) {
4543 $fields .= ",stamp,expires,stampactive";
4544 push @vallist, $stamp, $expires, 'y';
4545 } else {
4546 $fields .= ",stampactive";
4547 push @vallist, 'n';
4548 }
4549 }
4550
4551 # hack hack PTHUI
4552 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4553 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4554 # needed for crossover types that got coerced down to "standard" types due to data changes
4555 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4556 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4557 if ($$rectype == $reverse_typemap{PTR}) {
4558 $fields .= ",domain_id";
4559 push @vallist, 0;
4560 }
4561 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4562 $fields .= ",rdns_id";
4563 push @vallist, 0;
4564 }
4565 }
4566 # fix fat-finger-originated record type changes
4567 if ($$rectype == 65285) { # delegation
4568 $fields .= ",rdns_id" if $revrec eq 'n';
4569 $fields .= ",domain_id" if $revrec eq 'y';
4570 push @vallist, 0;
4571 }
4572 # ... and now make sure we *do* associate a record with the "calling" parent
4573 if ($defrec eq 'n') {
4574 $domid = $parid if $revrec eq 'n';
4575 $revid = $parid if $revrec eq 'y';
4576 }
4577
4578 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4579 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4580 # will be maintained (due to "not-in-zone" validation changes)
4581 my %logdata;
4582 $logdata{domain_id} = $domid;
4583 $logdata{rdns_id} = $revid;
4584 my @ftmp = split /,/, $fields;
4585 for (my $i=0; $i <= $#vallist; $i++) {
4586 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4587 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4588 }
4589 $logdata{group_id} = $parid if $defrec eq 'y';
4590 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4591 if $defrec eq 'n';
4592 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4593 # Log reverse records "naturally", since they're stored, um, unnaturally.
4594 if ($revrec eq 'y') {
4595 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4596 } else {
4597 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4598 }
4599 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4600 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4601 if $typemap{$oldrec->{type}} eq 'SRV';
4602 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4603 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4604 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4605 if $oldrec->{stampactive};
4606 $logdata{entry} .= "\nto\n";
4607 # Log reverse records "naturally", since they're stored, um, unnaturally.
4608 if ($revrec eq 'y') {
4609 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4610 } else {
4611 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4612 }
4613 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4614 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4615 $logdata{entry} .= "', TTL $ttl";
4616 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4617 $logdata{entry} .= ($expires ? ', expires at ' : ', valid after ').$stamp if $stamp;
4618
4619 local $dbh->{AutoCommit} = 0;
4620 local $dbh->{RaiseError} = 1;
4621
4622 # Fiddle the field list into something suitable for updates
4623 $fields =~ s/,/=?,/g;
4624 $fields .= "=?";
4625
4626 eval {
4627 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4628 $self->_log(%logdata);
4629 $dbh->commit;
4630 };
4631 if ($@) {
4632 my $msg = $@;
4633 eval { $dbh->rollback; };
4634 if ($self->{log_failures}) {
4635 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4636 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4637 $self->_log(%logdata);
4638 $dbh->commit;
4639 }
4640 return ('FAIL', $msg);
4641 }
4642
4643 $resultstr = $logdata{entry};
4644 return ($retcode, $retmsg);
4645} # end updateRec()
4646
4647
4648## DNSDB::downconvert()
4649# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4650# to a compatible component type. Only a handful of operations are valid, anything
4651# else is a null-op.
4652# Takes the record ID and the new type. Returns boolean.
4653sub downconvert {
4654 my $self = shift;
4655 my $dbh = $self->{dbh};
4656 my $recid = shift;
4657 my $newtype = shift;
4658
4659 # also, only work on live records; little to no value trying to do this on default records.
4660 my $rec = $self->getRecLine('n', 'y', $recid);
4661
4662 # hm?
4663 #return 1 if !$rec;
4664
4665 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4666 return 1 if $rec->{type} == 65282; # Nowhere to go
4667
4668 my $delpar;
4669 my @sqlargs;
4670 if ($rec->{type} == 65280) {
4671 return 1 if $newtype != 1 && $newtype != 12;
4672 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4673 push @sqlargs, 0, $newtype, $recid;
4674 } elsif ($rec->{type} == 65281) {
4675 return 1 if $newtype != 28 && $newtype != 12;
4676 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4677 push @sqlargs, 0, $newtype, $recid;
4678 } elsif ($rec->{type} == 65283) {
4679 return 1 if $newtype != 65282;
4680 $delpar = 'rdns_id';
4681 } elsif ($rec->{type} == 65284) {
4682 return 1 if $newtype != 65282;
4683 $delpar = 'rdns_id';
4684 } else {
4685 # Your llama is on fire.
4686 }
4687
4688 local $dbh->{AutoCommit} = 0;
4689 local $dbh->{RaiseError} = 1;
4690
4691 eval {
4692 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4693 $self->_log(domain_id => $rec->{domain_id}, rdns_id => $rec->{rdns_id},
4694 group_id => $self->parentID(id => $rec->{rdns_id}, type => 'revzone', revrec => 'y'),
4695 entry => "'$rec->{host} $typemap{$rec->{type}} $rec->{val}' downconverted to ".
4696 "'$rec->{host} $typemap{$newtype} $rec->{val}'");
4697 $dbh->commit;
4698 };
4699 if ($@) {
4700 $errstr = $@;
4701 eval { $dbh->rollback; };
4702 return 0;
4703 }
4704 return 1;
4705} # end downconvert()
4706
4707
4708## DNSDB::delRec()
4709# Delete a record.
4710# Takes a default/live flag, forward/reverse flag, and the ID of the record to delete.
4711sub delRec {
4712 $errstr = '';
4713 my $self = shift;
4714 my $dbh = $self->{dbh};
4715 my $defrec = shift;
4716 my $revrec = shift;
4717 my $id = shift;
4718
4719 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4720
4721 # Allow transactions, and raise an exception on errors so we can catch it later.
4722 # Use local to make sure these get "reset" properly on exiting this block
4723 local $dbh->{AutoCommit} = 0;
4724 local $dbh->{RaiseError} = 1;
4725
4726 # Put together the log entry
4727 my %logdata;
4728 $logdata{domain_id} = $oldrec->{domain_id};
4729 $logdata{rdns_id} = $oldrec->{rdns_id};
4730 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4731 $logdata{group_id} = $self->parentID(id => ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id}),
4732 type => 'domain', revrec => $revrec)
4733 if $defrec eq 'n';
4734 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4735 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4736 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4737 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4738 if $typemap{$oldrec->{type}} eq 'SRV';
4739 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4740 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4741
4742 eval {
4743 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4744 $self->_log(%logdata);
4745 $dbh->commit;
4746 };
4747 if ($@) {
4748 my $msg = $@;
4749 eval { $dbh->rollback; };
4750 if ($self->{log_failures}) {
4751 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4752 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4753 $self->_log(%logdata);
4754 $dbh->commit;
4755 }
4756 return ('FAIL', $msg);
4757 }
4758
4759 return ('OK',$logdata{entry});
4760} # end delRec()
4761
4762
4763## DNSDB::getLogCount()
4764# Get a count of log entries
4765# Takes a database handle and a hash containing at least:
4766# - Entity ID and entity type as the primary log "slice"
4767sub getLogCount {
4768 my $self = shift;
4769 my $dbh = $self->{dbh};
4770
4771 my %args = @_;
4772
4773 my @filterargs;
4774##fixme: which fields do we want to filter on?
4775# push @filterargs,
4776
4777 $errstr = 'Missing primary parent ID and/or type';
4778 # fail early if we don't have a "prime" ID to look for log entries for
4779 return if !$args{id};
4780
4781 # or if the prime id type is missing or invalid
4782 return if !$args{logtype};
4783 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4784 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4785 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4786
4787 my $sql = "SELECT count(*) FROM log ".
4788 "WHERE $id_col{$args{logtype}}=?".
4789 ($args{filter} ? " AND entry ~* ?" : '');
4790 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4791 $errstr = $dbh->errstr if !$count;
4792 return $count;
4793} # end getLogCount()
4794
4795
4796## DNSDB::getLogEntries()
4797# Get a list of log entries
4798# Takes arguments as with getLogCount() above, plus optional:
4799# - sort field
4800# - sort order
4801# - offset for pagination
4802sub getLogEntries {
4803 my $self = shift;
4804 my $dbh = $self->{dbh};
4805
4806 my %args = @_;
4807
4808 my @filterargs;
4809
4810 # fail early if we don't have a "prime" ID to look for log entries for
4811 return if !$args{id};
4812
4813 # or if the prime id type is missing or invalid
4814 return if !$args{logtype};
4815 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4816 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4817 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4818
4819 # Sorting defaults
4820 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4821 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4822 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4823
4824 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4825 $args{sortby} = $sortmap{$args{sortby}};
4826
4827 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4828 "date_trunc('second',stamp) AS logtime ".
4829 "FROM log ".
4830 "WHERE $id_col{$args{logtype}}=?".
4831 ($args{filter} ? " AND entry ~* ?" : '').
4832 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4833 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4834 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4835 $errstr = $dbh->errstr if !$loglist;
4836 return $loglist;
4837} # end getLogEntries()
4838
4839
4840## DNSDB::getRevPattern()
4841# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4842sub getRevPattern {
4843 my $self = shift;
4844 my $dbh = $self->{dbh};
4845 my $cidr = shift;
4846 my %args = @_;
4847 $args{group} = 1 if !$args{group}; # just in case
4848 $args{location} = '' if !$args{location};
4849
4850 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4851 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?",
4852 undef, ($cidr) );
4853
4854##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4855 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4856 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? ".
4857 "AND location = ? AND inetlazy(val) >>= ? ".
4858 "ORDER BY inetlazy(val) DESC LIMIT 1",
4859 undef, ($revid, $args{location}, $cidr) );
4860
4861 return $revpatt;
4862} # end getRevPattern()
4863
4864
4865## DNSDB::getRevSet()
4866# Return the unique per-IP reverse hostnames, if any, for the passed
4867# CIDR address (may be a netblock or an IP)
4868sub getRevSet {
4869 my $self = shift;
4870 my $dbh = $self->{dbh};
4871 my $cidr = shift;
4872 my %args = @_;
4873 $args{group} = 1 if !$args{group}; # just in case
4874 $args{location} = '' if !$args{location};
4875
4876 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4877 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?",
4878 undef, ($cidr) );
4879
4880 $cidr = new NetAddr::IP $cidr;
4881 if ($cidr->num > 256) { # should also catch v6!
4882 # Even reverse entries for a v4 /24 of IPs is a bit much. I don't expect
4883 # there to be a sane reason to retrive more than a /27 at once, really.
4884 # v6 is going to be hairy no matter how you slice it.
4885 $errstr = "Reverse hostname detail range too large";
4886 return;
4887 }
4888
4889 my $sth = $dbh->prepare("SELECT val, host FROM records ".
4890 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND location = ? AND inetlazy(val) = ?");
4891
4892 my @ret;
4893 foreach my $ip (@{$cidr->splitref()}) {
4894 $sth->execute($revid, $args{location}, $ip);
4895 my @data = $sth->fetchrow_array();
4896 my %row;
4897 if (@data) {
4898 $row{r_ip} = $data[0];
4899 $row{iphost} = $data[1];
4900 } else {
4901 $row{r_ip} = $ip->addr;
4902 $row{iphost} = '';
4903 }
4904 push @ret, \%row;
4905 }
4906
4907 return \@ret;
4908} # end getRevSet()
4909
4910
4911## DNSDB::getTypelist()
4912# Get a list of record types for various UI dropdowns
4913# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4914# Returns an arrayref to list of hashrefs perfect for HTML::Template
4915sub getTypelist {
4916 my $self = shift;
4917 my $dbh = $self->{dbh};
4918 my $recgroup = shift;
4919 my $type = shift || $reverse_typemap{A};
4920
4921 # also accepting $webvar{revrec}!
4922 $recgroup = 'f' if $recgroup eq 'n';
4923 $recgroup = 'r' if $recgroup eq 'y';
4924
4925 my $sql = "SELECT val,name FROM rectypes WHERE ";
4926 if ($recgroup eq 'r') {
4927 # reverse zone types
4928 $sql .= "stdflag=2 OR stdflag=3";
4929 } elsif ($recgroup eq 'l') {
4930 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4931 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4932 } else {
4933 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4934 $sql .= "stdflag=1 OR stdflag=2";
4935 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4936 }
4937 $sql .= " ORDER BY listorder";
4938
4939 my $sth = $dbh->prepare($sql);
4940 $sth->execute;
4941 my @typelist;
4942 # track whether the passed type is in the list at all. allows you to edit a record
4943 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4944 # without changing its type (accidentally or otherwise)
4945 my $selflag = 0;
4946 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4947 my %row = ( recval => $rval, recname => $rname );
4948 if ($rval == $type) {
4949 $row{tselect} = 1;
4950 $selflag = 1;
4951 }
4952 push @typelist, \%row;
4953 }
4954
4955 # add the passed type if it wasn't in the list
4956 if (!$selflag) {
4957 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4958 push @typelist, \%row;
4959 }
4960
4961 # Add SOA on lookups since it's not listed in other dropdowns.
4962 if ($recgroup eq 'l') {
4963 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4964 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4965 push @typelist, \%row;
4966 }
4967
4968 return \@typelist;
4969} # end getTypelist()
4970
4971
4972## DNSDB::parentID()
4973# Get ID of entity that is nearest parent to requested id
4974# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4975# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4976# Returns the ID or undef on failure
4977sub parentID {
4978 my $self = shift;
4979 my $dbh = $self->{dbh};
4980
4981 my %args = @_;
4982
4983 # clean up defrec and revrec. default to live record, forward zone
4984 $args{defrec} = 'n' if !$args{defrec};
4985 $args{revrec} = 'n' if !$args{revrec};
4986
4987 # clean up the parent-type. Set it to group if not set
4988 $args{partype} = 'group' if !$args{partype};
4989
4990 # allow callers to be lazy with type
4991 $args{type} = 'revzone' if $args{type} eq 'domain' && $args{revrec} eq 'y';
4992
4993 if ($par_type{$args{partype}} eq 'domain' || $par_type{$args{partype}} eq 'revzone') {
4994 # only live records can have a domain/zone parent
4995 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4996 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4997 " FROM records WHERE record_id = ?",
4998 undef, ($args{id}) ) or return;
4999 return $result;
5000 } else {
5001 # snag some arguments that will either fall through or be overwritten to save some code duplication
5002 my $tmpid = $args{id};
5003 my $type = $args{type};
5004 if ($type eq 'record' && $args{defrec} eq 'n') {
5005 # Live records go through the records table first.
5006 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
5007 " FROM records WHERE record_id = ?",
5008 undef, ($args{id}) ) or return;
5009 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
5010 }
5011 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
5012 undef, ($tmpid) );
5013 return $result;
5014 }
5015# should be impossible to get here with even remotely sane arguments
5016 return;
5017} # end parentID()
5018
5019
5020## DNSDB::isParent()
5021# Returns true if $id1 is a parent of $id2, false otherwise
5022sub isParent {
5023 my $self = shift;
5024 my $dbh = $self->{dbh};
5025 my $id1 = shift;
5026 my $type1 = shift;
5027 my $id2 = shift;
5028 my $type2 = shift;
5029##todo: immediate, secondary, full (default)
5030
5031 # Return false on invalid types
5032 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
5033 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
5034
5035 # Return false on impossible relations
5036 return 0 if $type1 eq 'record'; # nothing may be a child of a record
5037 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
5038 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
5039 return 0 if $type1 eq 'user'; # nothing may be child of a user
5040 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
5041 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
5042
5043 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
5044 # case would be the UI creating a new <thing>, and so we don't have an ID for
5045 # <thing> to look up yet. in that case the UI should check the parent as well.
5046 return 0 if $id1 == 0; # nothing can have a parent id of 0
5047 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
5048
5049 # group 1 is the ultimate root parent
5050 return 1 if $type1 eq 'group' && $id1 == 1;
5051
5052 # groups are always (a) parent of themselves
5053 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
5054
5055 my $id = $id2;
5056 my $type = $type2;
5057 my $foundparent = 0;
5058
5059 # Records are the only entity with two possible parents. We need to split the parent checks on
5060 # domain/rdns.
5061 if ($type eq 'record') {
5062 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
5063 undef, ($id));
5064 # check immediate parent against request
5065 return 1 if $type1 eq 'domain' && $id1 == $dom;
5066 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
5067 # if request is group, check *both* parents. Only check if the parent is nonzero though.
5068 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
5069 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
5070 # exit here since we've executed the loop below by proxy in the above recursive calls.
5071 return 0;
5072 }
5073
5074# almost the same loop as getParents() above
5075 my $limiter = 0;
5076 while (1) {
5077 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
5078 my $result = $dbh->selectrow_hashref($sql,
5079 undef, ($id) );
5080 if (!$result) {
5081 $limiter++;
5082##fixme: how often will this happen on a live site? fail at max limiter <n>?
5083# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
5084 warn "no results looking for $sql with id $id (depth $limiter)\n";
5085 last;
5086 }
5087 if ($result && $result->{$par_col{$type}} == $id1) {
5088 $foundparent = 1;
5089 last;
5090 } else {
5091##fixme: do we care about trying to return a "no such record/domain/user/group" error?
5092# should be impossible to create an inconsistent DB just with API calls.
5093 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
5094 }
5095 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
5096 last if $result->{$par_col{$type}} == 1;
5097 $id = $result->{$par_col{$type}};
5098 $type = $par_type{$type};
5099 }
5100
5101 return $foundparent;
5102} # end isParent()
5103
5104
5105## DNSDB::zoneStatus()
5106# Returns and optionally sets a zone's status
5107# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
5108# Returns status, or undef on errors.
5109sub zoneStatus {
5110 my $self = shift;
5111 my $dbh = $self->{dbh};
5112 my $id = shift;
5113 my $revrec = shift;
5114 my $newstatus = shift || 'mu';
5115
5116 return undef if $id !~ /^\d+$/;
5117
5118 # Allow transactions, and raise an exception on errors so we can catch it later.
5119 # Use local to make sure these get "reset" properly on exiting this block
5120 local $dbh->{AutoCommit} = 0;
5121 local $dbh->{RaiseError} = 1;
5122
5123 if ($newstatus ne 'mu') {
5124 # ooo, fun! let's see what we were passed for status
5125 eval {
5126 $newstatus = 0 if $newstatus eq 'domoff';
5127 $newstatus = 1 if $newstatus eq 'domon';
5128 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
5129 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
5130
5131##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
5132 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
5133 " state to ".($newstatus ? 'active' : 'inactive');
5134
5135 my %loghash;
5136 $loghash{domain_id} = $id if $revrec eq 'n';
5137 $loghash{rdns_id} = $id if $revrec eq 'y';
5138 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
5139 $loghash{entry} = $resultstr;
5140 $self->_log(%loghash);
5141
5142 $dbh->commit;
5143 };
5144 if ($@) {
5145 my $msg = $@;
5146 eval { $dbh->rollback; };
5147 $resultstr = '';
5148 $errstr = $msg;
5149 return;
5150 }
5151 }
5152
5153 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
5154 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
5155 undef, ($id) );
5156 return $status;
5157} # end zoneStatus()
5158
5159
5160## DNSDB::getZonesByCIDR()
5161# Get a list of zone names and IDs that records for a passed CIDR block are within.
5162sub getZonesByCIDR {
5163 my $self = shift;
5164 my $dbh = $self->{dbh};
5165 my %args = @_;
5166
5167 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
5168 { Slice => {} }, ($args{cidr}, $args{cidr}) );
5169 return $result;
5170} # end getZonesByCIDR()
5171
5172
5173## DNSDB::importAXFR
5174# Import a domain via AXFR
5175# Takes AXFR host, domain to transfer, group to put the domain in,
5176# and an optional hash containing:
5177# status - active/inactive state flag (defaults to active)
5178# rwsoa - overwrite-SOA flag (defaults to off)
5179# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
5180# merge - flag to automerge A or AAAA records with matching PTR records
5181# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
5182# if status is OK, but WARN includes conditions that are not fatal but should
5183# really be reported.
5184sub importAXFR {
5185 my $self = shift;
5186 my $dbh = $self->{dbh};
5187 my $ifrom_in = shift;
5188 my $zone = shift;
5189 my $group = shift;
5190
5191 my %args = @_;
5192
5193##fixme: add mode to delete&replace, merge+overwrite, merge new?
5194
5195 $args{status} = (defined($args{status}) ? $args{status} : 0);
5196 $args{status} = 1 if $args{status} eq 'on';
5197
5198 my $nrecs = 0;
5199 my $soaflag = 0;
5200 my $nsflag = 0;
5201 my $warnmsg = '';
5202 my $ifrom;
5203
5204 my $rev = 'n';
5205 my $code = 'OK';
5206 my $msg = 'foobar?';
5207
5208 # choke on possible bad setting in ifrom
5209 # IPv4 and v6, and valid hostnames!
5210 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
5211 return ('FAIL', "Bad AXFR source host $ifrom")
5212 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
5213
5214 my $errmsg;
5215
5216 my $zone_id;
5217 my $domain_id = 0;
5218 my $rdns_id = 0;
5219 my $cidr;
5220
5221# magic happens! detect if we're importing a domain or a reverse zone
5222# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
5223# or what the formal .arpa zone is (if we got a CIDR netblock)
5224# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
5225
5226 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
5227 # we seem to have a reverse zone
5228 $rev = 'y';
5229
5230 if ($zone =~ /\.arpa\.?$/) {
5231 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
5232 ($code,$msg) = _zone2cidr($zone);
5233 return ($code, $msg) if $code eq 'FAIL';
5234 $cidr = $msg;
5235 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
5236 # v4 revzone, CIDR netblock
5237 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5238 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
5239 } elsif ($zone =~ /^[\d.]+$/) {
5240 # v4 revzone, leading-octet format
5241 my $mask = 32;
5242 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
5243 $zone .= '.0';
5244 $mask -= 8;
5245 }
5246 $zone .= "/$mask";
5247 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5248 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
5249 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
5250 # v6 revzone, CIDR netblock
5251 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5252 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
5253 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
5254 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
5255 # v6 revzone, leading-group format
5256 $zone =~ s/::$//;
5257 my $mask = 128;
5258 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
5259 $zone .= ":0";
5260 $mask -= 16;
5261 }
5262 $zone .= "/$mask";
5263 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5264 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
5265 } else {
5266 # there is. no. else!
5267 return ('FAIL', "Unknown zone name format '$zone'");
5268 }
5269
5270 # several places this can be triggered from; better to do it once.
5271 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
5272
5273 # quick check to start to see if we've already got one
5274
5275 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
5276 undef, ("$cidr"));
5277 $rdns_id = $zone_id;
5278 } else {
5279 # default to domain
5280 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
5281 undef, ($zone));
5282 $domain_id = $zone_id;
5283 }
5284
5285 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
5286
5287 # little local utility sub to swap $val and $host for revzone records.
5288 sub _revswap {
5289 my $rechost = shift;
5290 my $recdata = shift;
5291
5292 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
5293 $rechost =~ s/\.in-addr\.arpa\.?$//;
5294 $rechost = join '.', reverse split /\./, $rechost;
5295 } else {
5296 $rechost =~ s/\.ip6\.arpa\.?$//;
5297 my @nibs = reverse split /\./, $rechost;
5298 $rechost = '';
5299 my $nc;
5300 foreach (@nibs) {
5301# # fail on multicharacter nibbles; it's syntactically valid but no standard lookup
5302# # will ever reach it, because it doesn't directly represent a real IP address.
5303# return ('FAIL', "Invalid reverse v6 entry") if $_ !~ /^.$/;
5304 $rechost.= $_;
5305 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
5306 }
5307 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
5308##fixme: there's a case that ends up with a partial entry here:
5309# ip:add:re:ss::
5310# can't reproduce after letting it sit overnight after discovery. :(
5311#print "$rechost\n";
5312 # canonicalize with NetAddr::IP
5313 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
5314 }
5315 return ($recdata,$rechost)
5316 }
5317
5318
5319 # Allow transactions, and raise an exception on errors so we can catch it later.
5320 # Use local to make sure these get "reset" properly on exiting this block
5321 local $dbh->{AutoCommit} = 0;
5322 local $dbh->{RaiseError} = 1;
5323
5324 my $sth;
5325 eval {
5326
5327 if ($rev eq 'n') {
5328##fixme: serial
5329 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
5330 ($zone, $group, $args{status}) );
5331 # get domain id so we can do the records
5332 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
5333 $domain_id = $zone_id;
5334 $self->_log(group_id => $group, domain_id => $domain_id,
5335 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
5336 } else {
5337##fixme: serial
5338 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
5339 ($cidr,$group,$args{status}) );
5340 # get revzone id so we can do the records
5341 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
5342 $rdns_id = $zone_id;
5343 $self->_log(group_id => $group, rdns_id => $rdns_id,
5344 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
5345 }
5346
5347## bizarre DBI<->Net::DNS interaction bug:
5348## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
5349## fixed, apparently I was doing *something* odd, but not certain what it was that
5350## caused a commit instead of barfing
5351
5352 my $res = Net::DNS::Resolver->new;
5353 $res->nameservers($ifrom);
5354 $res->axfr_start($zone)
5355 or die "Couldn't begin AXFR\n";
5356
5357 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
5358 " VALUES (?,?,?,?,?,?,?,?,?)");
5359
5360 # Stash info about sub-octet v4 revzones here so we don't have
5361 # to store the CNAMEs used to delegate a suboctet zone
5362 # $suboct{zone}{ns}[] -> array of nameservers
5363 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
5364## commented pending actual use of this data. for now, we'll just
5365## auto-(re)create the CNAMEs in revzones on export
5366# my %suboct;
5367
5368 while (my $rr = $res->axfr_next()) {
5369
5370 # Discard out-of-zone records. After trying for a while to replicate this with
5371 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
5372 # in the AXFR data in the first place, and possibly only older versions at that...
5373 # so it can't be reasonably tested. Yay Microsoft.
5374 if ($rr->name !~ /$zone$/i) {
5375 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
5376 }
5377
5378 my $val;
5379 my $distance = 0;
5380 my $weight = 0;
5381 my $port = 0;
5382 my $logfrag = '';
5383
5384 # Collect some record parts
5385 my $type = $rr->type;
5386 my $host = $rr->name;
5387 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
5388
5389 # Info flags for SOA and NS records
5390 $soaflag = 1 if $type eq 'SOA';
5391 $nsflag = 1 if $type eq 'NS';
5392
5393# "Primary" types:
5394# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
5395# maybe KEY
5396
5397# BIND supports:
5398# [standard]
5399# A AAAA CNAME MX NS PTR SOA TXT
5400# [variously experimental, obsolete, or obscure]
5401# 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
5402# ... if one can ever find the right magic to format them correctly
5403
5404# Net::DNS supports:
5405# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
5406# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
5407# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
5408
5409# nasty big ugly case-like thing here, since we have to do *some* different
5410# processing depending on the record. le sigh.
5411
5412# do the initial processing as if the record was in a forward zone. If we're
5413# doing a revzone, we can flip $host and $val as needed, once, after this
5414# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
5415
5416##fixme: what record types other than TXT can/will have >255-byte payloads?
5417
5418 if ($type eq 'A') {
5419 $val = $rr->address;
5420 } elsif ($type eq 'NS') {
5421# hmm. should we warn here if subdomain NS'es are left alone? OTOH, those should rarely be rewritten anyway.
5422 next if ($args{rwns} && ($host eq $zone));
5423 $val = $rr->nsdname;
5424 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: NS records may not be bare IP addresses\n"
5425 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5426 $nsflag = 1;
5427 } elsif ($type eq 'CNAME') {
5428 $val = $rr->cname;
5429 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: CNAME records may not be bare IP addresses\n"
5430 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5431 } elsif ($type eq 'SOA') {
5432 next if $args{rwsoa};
5433 $host = $rr->rname.":".$rr->mname;
5434 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
5435 $soaflag = 1;
5436 } elsif ($type eq 'PTR') {
5437 $val = $rr->ptrdname;
5438 } elsif ($type eq 'MX') {
5439 $val = $rr->exchange;
5440 $distance = $rr->preference;
5441 } elsif ($type eq 'TXT') {
5442##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
5443## but don't really seem enthusiastic about it.
5444#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
5445# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
5446# char_str_list returns a list of the individual string fragments in the record
5447# txtdata returns the more useful all-in-one form (since we want to push such protocol
5448# details as far down the stack as we can)
5449# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
5450 $val = $rr->txtdata;
5451 } elsif ($type eq 'SPF') {
5452##fixme: and the same caveat here, since it is apparently a clone of ::TXT
5453 $val = $rr->txtdata;
5454 } elsif ($type eq 'AAAA') {
5455 $val = $rr->address;
5456 } elsif ($type eq 'SRV') {
5457 $val = $rr->target;
5458 $distance = $rr->priority;
5459 $weight = $rr->weight;
5460 $port = $rr->port;
5461 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: SRV records may not be bare IP addresses\n"
5462 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5463 } elsif ($type eq 'KEY') {
5464 # we don't actually know what to do with these...
5465 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
5466 } else {
5467 $val = $rr->rdatastr;
5468 # Finding a different record type is not fatal.... just problematic.
5469 # We may not be able to export it correctly.
5470 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
5471 }
5472
5473 if ($rev eq 'y' && $type ne 'SOA') {
5474 # up to this point we haven't meddled with the record's hostname part or rdata part.
5475 # for reverse records, (except SOA) we must swap the two.
5476 $host = $val;
5477 $val = $rr->name;
5478 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
5479 if ($tmpcode eq 'FAIL') {
5480 # $val did not have a valid IP value. It's syntactically valid but WTF?
5481 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
5482 } else {
5483 # $val has a valid IP value. See if we can store it as that IP value.
5484 # Note we're enumerating do-nothing cases for clarity.
5485##enhance: this is where we will implement the more subtle variations on #53
5486 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
5487 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
5488 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5489 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
5490 # case: PTR with netblock value, not IP value
5491 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
5492 # stored/displayed as dead:beef::/32 PTR foo
5493
5494## hrm. WTF is this case for, anyway? Needs testing to check the logic.
5495# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
5496# ($tmpmsg->masklen != $cidr->masklen)
5497# ) {
5498# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
5499# # and the mask does not match the zone
5500#$warnmsg .= "WTF case: $host $type $val\n";
5501# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5502
5503 } else {
5504 $val = $tmpmsg;
5505 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5506 #$val =~ s/:0$//g;
5507 }
5508 }
5509 # magic? convert * records to PTR template (not sure this actually makes sense)
5510 #if ($val =~ /^\*/) {
5511 # $val =~ s/\*\.//;
5512 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
5513 # if ($tmpcode eq 'FAIL') {
5514 # $val = "*.$val";
5515 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
5516 # } else {
5517 # $type = 'PTR template';
5518 # $val = $tmpmsg; if $tmp
5519 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5520 # }
5521 #}
5522 } # non-SOA revrec $host/$val inversion and munging
5523
5524 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5525
5526 if ($args{merge}) {
5527 if ($rev eq 'n') {
5528 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5529 my $etype;
5530 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5531 "WHERE host=? AND val=? AND type=12",
5532 undef, ($host, $val) );
5533 if ($erid) {
5534 if ($type eq 'A') { # PTR -> A+PTR
5535 $etype = 65280;
5536 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5537 }
5538 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5539 $etype = 65281;
5540 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5541 }
5542 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5543 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5544 ($domain_id, $ettl, $etype, $erid));
5545 $nrecs++;
5546 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5547 next; # while axfr_next
5548 }
5549 } # $rev eq 'n'
5550 else {
5551 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5552 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5553 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5554 undef, ($host, $val) );
5555 if ($erid) {
5556 if ($etype == 1) { # A -> A+PTR
5557 $etype = 65280;
5558 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5559 }
5560 if ($etype == 28) { # AAAA -> AAAA+PTR
5561 $etype = 65281;
5562 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5563 }
5564 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5565 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5566 ($rdns_id, $ettl, $etype, $erid));
5567 $nrecs++;
5568 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5569 next; # while axfr_next
5570 }
5571 } # $rev eq 'y'
5572 } # if $args{merge}
5573
5574 # Insert the new record
5575 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5576 $distance, $weight, $port, $ttl);
5577
5578 $nrecs++;
5579
5580 if ($type eq 'SOA') {
5581 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5582 my @tmp1 = split /:/, $host;
5583 my @tmp2 = split /:/, $val;
5584 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5585 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5586 } elsif ($logfrag) {
5587 # special case for log entries we need to meddle with a little.
5588 $logentry .= $logfrag;
5589 } else {
5590 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5591 $logentry .= " [distance $distance]" if $type eq 'MX';
5592 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5593 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5594 }
5595 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5596
5597 } # while axfr_next
5598
5599# Detect and handle delegated subzones
5600# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5601#foreach (keys %suboct) {
5602# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5603# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5604#}
5605
5606 # Overwrite SOA record
5607 if ($args{rwsoa}) {
5608 $soaflag = 1;
5609 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5610 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5611 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5612 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5613 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5614 if ($rev eq 'n') {
5615 $host =~ s/DOMAIN/$zone/g;
5616 $val =~ s/DOMAIN/$zone/g; # arguably useless
5617 } else {
5618 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5619 }
5620 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5621 }
5622 }
5623
5624 # Add standard NS records. The old one(s) should have been skipped by this point.
5625 if ($args{rwns}) {
5626 $nsflag = 1;
5627 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5628 my $sthputns = $dbh->prepare("INSERT INTO records (".
5629 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5630 $sthgetns->execute($group,$reverse_typemap{NS});
5631 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5632 if ($rev eq 'n') {
5633 $host =~ s/DOMAIN/$zone/g;
5634 $val =~ s/DOMAIN/$zone/g; #hmm.
5635 } else {
5636 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5637 $val =~ s/ZONE/$cidr/g;
5638 }
5639 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5640 }
5641 }
5642
5643 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5644 die "Bad zone: No SOA record!\n" if !$soaflag;
5645 die "Bad zone: No NS records!\n" if !$nsflag;
5646
5647 $dbh->commit;
5648
5649 };
5650
5651 if ($@) {
5652 my $msg = $@;
5653 eval { $dbh->rollback; };
5654 return ('FAIL',$msg." $warnmsg");
5655 } else {
5656 return ('WARN', $warnmsg) if $warnmsg;
5657 return ('OK',"Imported OK");
5658 }
5659
5660 # it should be impossible to get here.
5661 return ('WARN',"OOOK!");
5662} # end importAXFR()
5663
5664
5665## DNSDB::importBIND()
5666sub importBIND {
5667} # end importBIND()
5668
5669
5670## DNSDB::import_tinydns()
5671sub import_tinydns {
5672} # end import_tinydns()
5673
5674
5675## DNSDB::export()
5676# Export the DNS database, or a part of it
5677# Takes a string indicating the export type, plus optional arguments depending on type
5678# Writes zone data to targets as appropriate for type
5679sub export {
5680 my $self = shift;
5681 my $target = shift;
5682
5683 if ($target eq 'tiny') {
5684 eval {
5685 $self->__export_tiny(@_);
5686 };
5687 if ($@) {
5688 $errstr = $@;
5689 return undef;
5690 }
5691 }
5692# elsif ($target eq 'foo') {
5693# __export_foo(@_);
5694#}
5695# etc
5696
5697 return 1;
5698} # end export()
5699
5700
5701## DNSDB::__export_tiny
5702# Internal sub to implement tinyDNS (compatible) export
5703# Takes filehandle to write export to, optional argument(s)
5704# to determine which data gets exported
5705sub __export_tiny {
5706 my $self = shift;
5707 my $dbh = $self->{dbh};
5708 my $datafile = shift;
5709 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5710
5711##fixme: slurp up further options to specify particular zone(s) to export
5712
5713##fixme: fail if $datafile isn't an open, writable file
5714
5715 # Error check - does the cache dir exist, if we're using one?
5716 if ($self->{usecache}) {
5717 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5718 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5719 die "$self->{exportcache} must be both readable and writable\n"
5720 if !-r $self->{exportcache} || !-w $self->{exportcache};
5721 }
5722
5723 # easy case - export all evarything
5724 # not-so-easy case - export item(s) specified
5725 # todo: figure out what kind of list we use to export items
5726
5727# raw packet in unknown format: first byte indicates length
5728# of remaining data, allows up to 255 raw bytes
5729
5730 # note: the only I/O failures we seem to be able to actually catch
5731 # here are "closed filehandle" errors. we're probably not writing
5732 # enough data at this point to properly trigger an "out of space"
5733 # error. :/
5734 eval {
5735 use warnings FATAL => ('io');
5736 # Locations/views - worth including in the caching setup?
5737 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5738 foreach my $location (keys %$lochash) {
5739 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5740 $ipprefix =~ s/\s+//g;
5741 $ipprefix = new NetAddr::IP $ipprefix;
5742##fixme: how to handle IPv6?
5743next if $ipprefix->{isv6};
5744 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5745 if ($ipprefix->masklen <= 8) {
5746 foreach ($ipprefix->split(8)) {
5747 my $tmp = $_->addr;
5748 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5749 print $datafile "%$location:$tmp\n";
5750 }
5751 } elsif ($ipprefix->masklen <= 16) {
5752 foreach ($ipprefix->split(16)) {
5753 my $tmp = $_->addr;
5754 $tmp =~ s/\.\d+\.\d+$//;
5755 print $datafile "%$location:$tmp\n";
5756 }
5757 } elsif ($ipprefix->masklen <= 24) {
5758 foreach ($ipprefix->split(24)) {
5759 my $tmp = $_->addr;
5760 $tmp =~ s/\.\d+$//;
5761 print $datafile "%$location:$tmp\n";
5762 }
5763 } else {
5764 foreach ($ipprefix->split(32)) {
5765 print $datafile "%$location:".$_->addr."\n";
5766 }
5767 }
5768 }
5769 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5770 }
5771 };
5772 if ($@) {
5773 die "Error writing locations to master file: $@, $!\n";
5774 }
5775
5776 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5777 my %recflags;
5778
5779# For reasons unknown, we can't sanely UNION these statements. Feh.
5780# Supposedly it should work though (note last 3 lines):
5781## PG manual
5782#UNION Clause
5783#
5784#The UNION clause has this general form:
5785#
5786# select_statement UNION [ ALL ] select_statement
5787#
5788#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5789#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5790#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5791 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5792 "FROM records WHERE rdns_id=? AND type=6");
5793 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5794 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5795 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5796 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5797 "ORDER BY masklen(revnet) DESC, rdns_id");
5798 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5799 $revsth->execute();
5800 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5801##fixme: need to find a way to block opening symlinked files without introducing a race.
5802# O_NOFOLLOW
5803# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5804# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5805# still be followed.
5806# but that doesn't help other platforms. :/
5807 my $tmpzone = NetAddr::IP->new($revzone);
5808##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5809## (eg /20 vs /24, starting on .0.0)
5810 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5811 my $cachefile = "$self->{exportcache}/$cz";
5812 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5813 eval {
5814
5815 # write fresh records if:
5816 # - we are not using the cache
5817 # - force_refresh is set
5818 # - the zone has changed
5819 # - the cache file does not exist
5820 # - the cache file is empty
5821 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5822 if ($self->{usecache}) {
5823 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5824 $zonefilehandle = *ZONECACHE;
5825 }
5826
5827 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5828 $soasth->execute($revid);
5829 my (@zsoa) = $soasth->fetchrow_array();
5830 $self->_printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5831 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5832
5833 $recsth->execute($revid);
5834 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5835
5836 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5837 = $recsth->fetchrow_array) {
5838 next if $recflags{$recid};
5839
5840 # Check for out-of-zone data
5841 if ($val =~ /\.arpa$/) {
5842 # val is non-IP
5843 if ($val !~ /$fullzone$/) {
5844 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5845 next;
5846 }
5847 } else {
5848 my $ipval = new NetAddr::IP $val;
5849 if (!$tmpzone->contains($ipval)) {
5850 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5851 next;
5852 }
5853 } # is $val a raw .arpa name?
5854
5855 # Spaces are evil.
5856 $val =~ s/^\s+//;
5857 $val =~ s/\s+$//;
5858 if ($typemap{$type} ne 'TXT') {
5859 # Leading or trailng spaces could be legit in TXT records.
5860 $host =~ s/^\s+//;
5861 $host =~ s/\s+$//;
5862 }
5863
5864 $self->_printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5865 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5866
5867 $recflags{$recid} = 1;
5868
5869 } # while ($recsth)
5870
5871 if ($self->{usecache}) {
5872 close ZONECACHE; # force the file to be written
5873 # catch obvious write errors that leave an empty temp file
5874 if (-s $tmpcache) {
5875 rename $tmpcache, $cachefile
5876 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5877 }
5878 }
5879
5880 } # if $changed or cache filesize is 0
5881
5882 };
5883 if ($@) {
5884 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5885 # error! something borked, and we should be able to fall back on the old cache file
5886 # report the error, somehow.
5887 } else {
5888 # mark zone as unmodified. Only do this if no errors, that way
5889 # export failures should recover a little more automatically.
5890 $zonesth->execute($revid);
5891 }
5892
5893 if ($self->{usecache}) {
5894 # We've already made as sure as we can that a cached zone file is "good",
5895 # although possibly stale/obsolete due to errors creating a new one.
5896 eval {
5897 open CACHE, "<$cachefile" or die $!;
5898 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5899 close CACHE;
5900 };
5901 die $@ if $@;
5902 }
5903
5904 } # while ($revsth)
5905
5906 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5907 "FROM records WHERE domain_id=? AND type=6");
5908 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5909 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5910# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5911 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5912 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5913 $domsth->execute();
5914 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5915##fixme: need to find a way to block opening symlinked files without introducing a race.
5916# O_NOFOLLOW
5917# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5918# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5919# still be followed.
5920# but that doesn't help other platforms. :/
5921 my $cachefile = "$self->{exportcache}/$dom";
5922 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5923 eval {
5924
5925 # write fresh records if:
5926 # - we are not using the cache
5927 # - force_refresh is set
5928 # - the zone has changed
5929 # - the cache file does not exist
5930 # - the cache file is empty
5931 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5932 if ($self->{usecache}) {
5933 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5934 $zonefilehandle = *ZONECACHE;
5935 }
5936
5937 # need to fetch this separately so the SOA comes first in the flatfile....
5938 # Just In Case we need/want to reimport from the flatfile later on.
5939 $soasth->execute($domid);
5940 my (@zsoa) = $soasth->fetchrow_array();
5941 $self->_printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5942 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5943
5944 $recsth->execute($domid);
5945 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5946 next if $recflags{$recid};
5947
5948 # Check for out-of-zone data
5949 $host = $dom if $host eq '@';
5950 if ($host !~ /$dom$/i) {
5951 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5952 next;
5953 }
5954
5955 # Spaces are evil.
5956 $host =~ s/^\s+//;
5957 $host =~ s/\s+$//;
5958 if ($typemap{$type} ne 'TXT') {
5959 # Leading or trailng spaces could be legit in TXT records.
5960 $val =~ s/^\s+//;
5961 $val =~ s/\s+$//;
5962 }
5963
5964 $self->_printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5965 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5966
5967 $recflags{$recid} = 1;
5968
5969 } # while ($recsth)
5970
5971
5972 if ($self->{usecache}) {
5973 close ZONECACHE; # force the file to be written
5974 # catch obvious write errors that leave an empty temp file
5975 if (-s $tmpcache) {
5976 rename $tmpcache, $cachefile
5977 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5978 }
5979 }
5980
5981 } # if $changed or cache filesize is 0
5982
5983 };
5984 if ($@) {
5985 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5986 # error! something borked, and we should be able to fall back on the old cache file
5987 # report the error, somehow.
5988 } else {
5989 # mark domain as unmodified. Only do this if no errors, that way
5990 # export failures should recover a little more automatically.
5991 $zonesth->execute($domid);
5992 }
5993
5994 if ($self->{usecache}) {
5995 # We've already made as sure as we can that a cached zone file is "good",
5996 # although possibly stale/obsolete due to errors creating a new one.
5997 eval {
5998 open CACHE, "<$cachefile" or die $!;
5999 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
6000 close CACHE;
6001 };
6002 die $@ if $@;
6003 }
6004
6005 } # while ($domsth)
6006
6007 return 1;
6008} # end __export_tiny()
6009
6010
6011# Utility sub for __export_tiny above
6012sub _printrec_tiny {
6013 my $self = shift;
6014 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
6015 $loc, $stamp, $expires, $stampactive) = @_;
6016
6017 $loc = '' if !$loc; # de-nullify - just in case
6018##fixme: handle case of record-with-location-that-doesn't-exist better.
6019# note this currently fails safe (tested) - records with a location that
6020# doesn't exist will not be sent to any client
6021# $loc = '' if !$lochash->{$loc};
6022
6023
6024## Records that are valid only before or after a set time
6025
6026# record due to expire sometime is the complex case. we don't want to just
6027# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
6028# is one day instead of the SOA minttl as BIND might do.
6029
6030# consider the case where a record is set to expire a week ahead, but the next
6031# day later you want to change it NOW (or as NOWish as you get with your DNS
6032# management practice). but now you're stuck, because someone, somewhere,
6033# has just done a lookup before your latest change was published, and they'll
6034# be caching that old, broken record for 1 day instead of your zone default
6035# TTL.
6036
6037# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
6038# to still have the expiry happen as scheduled, but we need to find some
6039# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
6040# but we need info on the export frequency.
6041
6042# export the normal, non-expiring record up until $stamp-<guesstimate>, then
6043# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
6044# takes over TTL management.
6045
6046 if ($stampactive) {
6047 if ($expires) {
6048 # record expires at $stamp; decide if we need to keep the TTL and ignore
6049 # the stamp for a time or if we need to change the TTL to 0 and convert
6050 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
6051# extra hack, optimally needs more knowledge of data export frequency
6052# smack the idiot customer who insists on 0 TTLs; they can suck up and
6053# deal with a 10-minute TTL. especially on scheduled changes. note this
6054# should be (export freq * 2), but we don't know the actual export frequency.
6055$ttl = 300 if $ttl == 0; #hack phtui
6056 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
6057 if ((time() + $ahead) < $stamp) {
6058 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
6059 $stamp = '';
6060 } else {
6061 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
6062 $ttl = 0;
6063 $stamp = unixtai64($stamp);
6064 $stamp =~ s/\@//;
6065 }
6066 } else {
6067 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
6068 $stamp = unixtai64($stamp);
6069 $stamp =~ s/\@//;
6070 }
6071 } else {
6072 # flag for active timestamp is false; don't actually put a timestamp in the output
6073 $stamp = '';
6074 }
6075
6076 # support tinydns' auto-TTL
6077 $ttl = '' if $ttl == -1;
6078# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
6079# NS 259200 => 3d
6080# all others 86400 => 1d
6081
6082 if ($revrec eq 'y') {
6083 $val = $zone if $val eq '@';
6084 } else {
6085 $host = $zone if $host eq '@';
6086 }
6087
6088 ## Convert a bare number into an octal-coded pair of octets.
6089 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
6090 sub octalize {
6091 my $tmp = shift;
6092 my $srctype = shift || 'h'; # default assumes hex string
6093 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
6094 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
6095 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
6096 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);
6097 }
6098
6099 # Utility sub-sub for reverse records; with "any-record-in-any-zone"
6100 # we may need to do extra processing on $val to make it publishable.
6101 sub __revswap {
6102 my $host = shift;
6103 my $val = shift;
6104 return ($val, $host) if $val =~ /\.arpa/;
6105 $val = new NetAddr::IP $val;
6106 my $newval = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6107 return ($newval, $host);
6108 }
6109
6110## WARNING: This works to export even the whole Internet's worth of IP space...
6111## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
6112## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
6113## 0/0 is estimated to take ~54 hours and ~256G of disk
6114## RAM usage depends on how many non-template entries you have in the set.
6115## This should probably be done on record addition rather than export; large blocks may need to be done in a
6116## forked process
6117 sub __publish_subnet {
6118 my $self = shift; # *sigh* need to pass in the DNSDB object so we can read a couple of options
6119 my $sub = shift;
6120 my $recflags = shift;
6121 my $hpat = shift;
6122 my $fh = shift;
6123 my $ttl = shift;
6124 my $stamp = shift;
6125 my $loc = shift;
6126 my $zone = new NetAddr::IP shift;
6127 my $ptronly = shift || 0;
6128
6129 # do this conversion once, not (number-of-ips-in-subnet) times
6130 my $arpabase = _ZONE($zone, 'ZONE.in-addr.arpa', 'r', '.');
6131
6132 my $iplist = $sub->splitref(32);
6133 my $ipindex = -1;
6134 foreach (@$iplist) {
6135 my $ip = $_->addr;
6136 $ipindex++;
6137 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
6138 my $lastoct = (split /\./, $ip)[3];
6139 next if $$recflags{$ip}; # && $self->{skip_bcast_255}
6140 $$recflags{$ip}++;
6141 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
6142 my $rec = $hpat; # start fresh with the template for each IP
6143##fixme: there really isn't a good way to handle sub-/24 zones here. This way at least
6144# seems less bad than some alternatives.
6145 $self->_template4_expand(\$rec, $ip, \$sub, $ipindex);
6146 # _template4_expand may blank $rec; if so, don't publish a record
6147 next if !$rec;
6148 if ($ptronly || $zone->masklen > 24) {
6149 print $fh "^$lastoct.$arpabase:$rec:$ttl:$stamp:$loc\n" or die $!;
6150 if (!$ptronly) {
6151 # print a separate A record. Arguably we could use an = record here instead.
6152 print $fh "+$rec:$ip:$ttl:$stamp:$loc\n" or die $!;
6153 }
6154 } else {
6155 print $fh "=$rec:$ip:$ttl:$stamp:$loc\n" or die $!;
6156 }
6157 }
6158 } # __publish_subnet
6159
6160## And now the meat.
6161
6162##fixme? append . to all host/val hostnames
6163#print "debug: rawdata: $host $typemap{$type} $val\n";
6164
6165 if ($typemap{$type} eq 'SOA') {
6166 # host contains pri-ns:responsible
6167 # val is abused to contain refresh:retry:expire:minttl
6168##fixme: "manual" serial vs tinydns-autoserial
6169 # let's be explicit about abusing $host and $val
6170 my ($email, $primary) = (split /:/, $host)[0,1];
6171 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
6172 if ($revrec eq 'y') {
6173##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
6174# what about v6?
6175# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
6176# anyone who says they need sub-nibble v6 delegations, at this time, needs their head examined.
6177 $zone = NetAddr::IP->new($zone);
6178 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
6179 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
6180 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
6181 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
6182 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
6183 or die $!;
6184 }
6185 return; # skips "default" bits just below
6186 }
6187 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6188 }
6189 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
6190 or die $!;
6191
6192 } elsif ($typemap{$type} eq 'A') {
6193
6194 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6195 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
6196
6197 } elsif ($typemap{$type} eq 'NS') {
6198
6199 if ($revrec eq 'y') {
6200 $val = NetAddr::IP->new($val);
6201 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
6202 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
6203 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
6204 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
6205 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
6206 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6207 $$recflags{$szone2} = $val->masklen;
6208 }
6209 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
6210 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
6211 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
6212 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
6213 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6214 $$recflags{$szone2} = $val->masklen;
6215 }
6216 } else {
6217 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6218 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6219 $$recflags{$val2} = $val->masklen;
6220 }
6221 } else {
6222 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
6223 }
6224
6225 } elsif ($typemap{$type} eq 'AAAA') {
6226
6227 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6228 my $altgrp = 0;
6229 my @altconv;
6230 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
6231 foreach (split /:/, $val) {
6232 if (/^$/) {
6233 # flag blank entry; this is a series of 0's of (currently) unknown length
6234 $altconv[$altgrp++] = 's';
6235 } else {
6236 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
6237 $altconv[$altgrp++] = octalize($_)
6238 }
6239 }
6240 my $prefix = ":$host:28:";
6241 foreach my $octet (@altconv) {
6242 # if not 's', output
6243 $prefix .= $octet unless $octet =~ /^s$/;
6244 # if 's', output (9-array length)x literal '\000\000'
6245 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
6246 }
6247 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
6248
6249 } elsif ($typemap{$type} eq 'MX') {
6250
6251 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6252 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
6253
6254 } elsif ($typemap{$type} eq 'TXT') {
6255
6256 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6257# le sigh. Some idiot DNS implementations don't seem to like tinydns autosplitting
6258# long TXT records at 127 characters instead of 255. Hand-crafting a record seems
6259# to paper over the remote stupid. We will NOT try to split on whitespace; the
6260# contents of a TXT record are opaque and clients who can't deal are even more broken
6261# than the ones that don't like them split at 127 characters... because BIND tries
6262# to "intelligently" split TXT data, and abso-by-damn-lutely generates chunks <255
6263# characters, and anything that can't interpret BIND's DNS responses has no business
6264# trying to interpret DNS data at all.
6265
6266 print $datafile ":$host:16:";
6267 my @txtsegs = $val =~ /.{1,255}/g;
6268 foreach (@txtsegs) {
6269 my $len = length($_);
6270 s/:/\\072/g;
6271 printf $datafile "\\%0.3o%s", $len, $_;
6272 }
6273 print $datafile ":$ttl:$stamp:$loc\n";
6274
6275# $val =~ s/:/\\072/g; # may need to replace other symbols
6276#make this an option?
6277# print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
6278
6279# by-hand TXT
6280#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
6281#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
6282#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
6283
6284#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
6285#: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
6286
6287# very long TXT record as brought in by axfr-get
6288# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
6289# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
6290#:longtxt.deepnet.cx:16:
6291#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
6292#\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.
6293#\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.
6294#:3600
6295
6296 } elsif ($typemap{$type} eq 'CNAME') {
6297
6298 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6299 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
6300
6301 } elsif ($typemap{$type} eq 'SRV') {
6302
6303 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6304
6305 # data is two-byte values for priority, weight, port, in that order,
6306 # followed by length/string data
6307
6308 my $prefix = ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
6309
6310 $val .= '.' if $val !~ /\.$/;
6311 foreach (split /\./, $val) {
6312 $prefix .= sprintf "\\%0.3o%s", length($_), $_ or die $!;
6313 }
6314 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
6315
6316 } elsif ($typemap{$type} eq 'RP') {
6317
6318 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6319 # RP consists of two mostly free-form strings.
6320 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
6321 # The second is the "hostname" of a TXT record with more info.
6322 my $prefix = ":$host:17:";
6323 my ($who,$what) = split /\s/, $val;
6324 foreach (split /\./, $who) {
6325 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
6326 }
6327 $prefix .= '\000';
6328 foreach (split /\./, $what) {
6329 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
6330 }
6331 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
6332
6333 } elsif ($typemap{$type} eq 'PTR') {
6334
6335 $$recflags{$val}++;
6336 if ($revrec eq 'y') {
6337
6338 if ($val =~ /\.arpa$/) {
6339 # someone put in the formal .arpa name. humor them.
6340 print $datafile "^$val:$host:$ttl:$stamp:$loc\n" or die $!;
6341 } else {
6342 $zone = NetAddr::IP->new($zone);
6343 if (!$zone->{isv6} && $zone->masklen > 24) {
6344 # sub-octet v4 zone
6345 ($val) = ($val =~ /\.(\d+)$/);
6346 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
6347 ":$host:$ttl:$stamp:$loc\n" or die $!;
6348 } else {
6349 # not going to care about strange results if $val is not an IP value and is resolveable in DNS
6350 $val = NetAddr::IP->new($val);
6351 print $datafile "^".
6352 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
6353 ":$host:$ttl:$stamp:$loc\n" or die $!;
6354 }
6355 } # non-".arpa" $val
6356
6357 } else {
6358 # PTRs in forward zones are less bizarre and insane than some other record types
6359 # in reverse zones... OTOH we can't validate them any which way, so we cross our
6360 # fingers and close our eyes and make it Someone Else's Problem.
6361 print $datafile "^$host:$val:$ttl:$stamp:$loc\n" or die $!;
6362 }
6363
6364 } elsif ($type == 65280) { # A+PTR
6365
6366 $$recflags{$val}++;
6367 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
6368
6369 } elsif ($type == 65281) { # AAAA+PTR
6370
6371 $$recflags{$val}++;
6372 # treat these as two separate records. since tinydns doesn't have
6373 # a native combined type, we have to create them separately anyway.
6374 # print both; a dangling record is harmless, and impossible via web
6375 # UI anyway
6376 $self->_printrec_tiny($datafile,$recid,'n',$recflags, $self->domainName($self->_hostparent($host)),
6377 $host, 28, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
6378 $self->_printrec_tiny($datafile, $recid, 'y', $recflags, $zone,
6379 $host, 12, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
6380
6381##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
6382# type 6 is for AAAA+PTR, type 3 is for AAAA
6383
6384 } elsif ($type == 65282) { # PTR template
6385
6386 # only useful for v4 with standard DNS software, since this expands all
6387 # IPs in $zone (or possibly $val?) with autogenerated records
6388 $val = NetAddr::IP->new($val);
6389 return if $val->{isv6};
6390
6391 if ($val->masklen <= 16) {
6392 foreach my $sub ($val->split(16)) {
6393 $self->__publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 1);
6394 }
6395 } else {
6396 $self->__publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 1);
6397 }
6398
6399 } elsif ($type == 65283) { # A+PTR template
6400
6401 $val = NetAddr::IP->new($val);
6402 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
6403 return if $val->{isv6};
6404
6405 if ($val->masklen < 16) {
6406 foreach my $sub ($val->split(16)) {
6407 $self->__publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 0);
6408 }
6409 } else {
6410 $self->__publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 0);
6411 }
6412
6413 } elsif ($type == 65284) { # AAAA+PTR template
6414 # Stub for completeness. Could be exported to DNS software that supports
6415 # some degree of internal automagic in generic-record-creation
6416 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
6417
6418 } elsif ($type == 65285) { # Delegation
6419 # This is intended for reverse zones, but may prove useful in forward zones.
6420
6421 # All delegations need to create one or more NS records. The NS record handler knows what to do.
6422 $self->_printrec_tiny($datafile,$recid,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
6423 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
6424 if ($revrec eq 'y') {
6425 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
6426 # to redirect all of the individual IP lookups as well.
6427 # OR
6428 # create NS records for each IP
6429 # Not sure how this would actually resolve if a /24 or larger was delegated
6430 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
6431 my $dblock = NetAddr::IP->new($val);
6432 if (!$dblock->{isv6} && $dblock->masklen > 24) {
6433 my @subs = $dblock->split;
6434 foreach (@subs) {
6435 next if $$recflags{"$_"};
6436 my ($oct) = ($_->addr =~ /(\d+)$/);
6437 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
6438 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
6439 $$recflags{"$_"}++;
6440 }
6441 }
6442 }
6443
6444##
6445## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
6446##
6447
6448 } elsif ($type == 44) { # SSHFP
6449
6450 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6451
6452 my ($algo,$fpt,$fp) = split /\s+/, $val;
6453
6454 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
6455 while (my ($byte) = ($fp =~ /^(..)/) ) {
6456 $rec .= sprintf "\\%0.3o", hex($byte);
6457 $fp =~ s/^..//;
6458 }
6459 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
6460
6461 } else {
6462 # raw record. we don't know what's in here, so we ASS-U-ME the user has
6463 # put it in correctly, since either the user is messing directly with the
6464 # database, or the record was imported via AXFR
6465 # <split by char>
6466 # convert anything not a-zA-Z0-9.- to octal coding
6467
6468##fixme: add flag to export "unknown" record types - note we'll probably end up
6469# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
6470 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
6471
6472 } # record type if-else
6473
6474} # end _printrec_tiny()
6475
6476
6477## DNSDB::mailNotify()
6478# Sends notification mail to recipients regarding a DNSDB operation
6479sub mailNotify {
6480 my $self = shift;
6481 my $dbh = $self->{dbh};
6482 my ($subj,$message) = @_;
6483
6484 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
6485
6486 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
6487
6488 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
6489
6490 $mailer->mail($mailsender);
6491 $mailer->to($self->{mailnotify});
6492 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
6493 "To: <$self->{mailnotify}>\n",
6494 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
6495 "Subject: $subj\n",
6496 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
6497 "Organization: $self->{orgname}\n",
6498 "\n$message\n");
6499 $mailer->quit;
6500}
6501
6502# shut Perl up
65031;
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