source: trunk/DNSDB.pm@ 685

Last change on this file since 685 was 685, checked in by Kris Deugau, 10 years ago

/trunk

Add some new template pattern options to autogenerate -net/-gw/-bcast
tags, and "n'th usable IP in range". Update online reference
reverse-patterns.html with the new patterns.
  • Property svn:keywords set to Date Rev Author Id
File size: 240.1 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 685 2015-07-27 21:32:49Z 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 user info hash (for logging).
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(?)");
2344 my $dom_id;
2345
2346# quick check to start to see if we've already got one
2347 $sth->execute($domain);
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) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2365 undef, ($domain));
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 my $msg = '';
2429 my $failmsg = '';
2430 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
2431
2432 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
2433
2434 # Set this up here since we may use if if $self->{log_failures} is enabled
2435 my %loghash;
2436 $loghash{domain_id} = $zoneid if $revrec eq 'n';
2437 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
2438 $loghash{group_id} = $self->parentID(
2439 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
2440
2441 # Wrap all the SQL in a transaction
2442 eval {
2443 # Disentangle custom record types before removing the
2444 # ones that are only in the zone to be deleted
2445 if ($revrec eq 'n') {
2446 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2447 $failmsg = "Failure converting multizone types to single-zone";
2448 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2449 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2450 $sth->execute(65282, $zoneid, 65283);
2451 $sth->execute(65282, $zoneid, 65284);
2452 $failmsg = "Failure removing domain records";
2453 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2454 $failmsg = "Failure removing domain";
2455 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2456 } else {
2457 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2458 $failmsg = "Failure converting multizone types to single-zone";
2459 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2460 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2461# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2462# $sth->execute(65286?, $zoneid, 65283);
2463# $sth->execute(65286?, $zoneid, 65284);
2464 $failmsg = "Failure removing reverse records";
2465 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2466 $failmsg = "Failure removing reverse zone";
2467 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2468 }
2469
2470 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2471 $loghash{entry} = $msg;
2472 $self->_log(%loghash);
2473
2474 # once we get here, we should have suceeded.
2475 $dbh->commit;
2476 }; # end eval
2477
2478 if ($@) {
2479 $msg = $@;
2480 eval { $dbh->rollback; };
2481 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2482 if ($self->{log_failures}) {
2483 $self->_log(%loghash);
2484 $dbh->commit; # since we enabled transactions earlier
2485 }
2486 return ('FAIL', $loghash{entry});
2487 } else {
2488 return ('OK', $msg);
2489 }
2490
2491} # end delZone()
2492
2493
2494## DNSDB::domainName()
2495# Return the domain name based on a domain ID
2496# Takes a database handle and the domain ID
2497# Returns the domain name or undef on failure
2498sub domainName {
2499 $errstr = '';
2500 my $self = shift;
2501 my $dbh = $self->{dbh};
2502 my $domid = shift;
2503 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2504 $errstr = $DBI::errstr if !$domname;
2505 return $domname if $domname;
2506} # end domainName()
2507
2508
2509## DNSDB::revName()
2510# Return the reverse zone name based on an rDNS ID
2511# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2512# instead of the formal .arpa zone name
2513# Returns the reverse zone name or undef on failure
2514sub revName {
2515 $errstr = '';
2516 my $self = shift;
2517 my $dbh = $self->{dbh};
2518 my $revid = shift;
2519 my $cidrflag = shift || 'n';
2520 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2521 $errstr = $DBI::errstr if !$revname;
2522 my $tmp = new NetAddr::IP $revname;
2523 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2524 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2525 return $revname if $revname;
2526} # end revName()
2527
2528
2529## DNSDB::domainID()
2530# Takes a database handle and domain name
2531# Returns the domain ID number
2532sub domainID {
2533 $errstr = '';
2534 my $self = shift;
2535 my $dbh = $self->{dbh};
2536 my $domain = shift;
2537 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2538 undef, ($domain) );
2539 if (!$domid) {
2540 if ($dbh->err) {
2541 $errstr = $DBI::errstr;
2542 } else {
2543 $errstr = "Domain $domain not present";
2544 }
2545 }
2546 return $domid if $domid;
2547} # end domainID()
2548
2549
2550## DNSDB::revID()
2551# Takes a database handle and reverse zone name
2552# Returns the rDNS ID number
2553sub revID {
2554 $errstr = '';
2555 my $self = shift;
2556 my $dbh = $self->{dbh};
2557 my $revzone = shift;
2558 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2559 if (!$revid) {
2560 if ($dbh->err) {
2561 $errstr = $DBI::errstr;
2562 } else {
2563 $errstr = "Reverse zone $revzone not present";
2564 }
2565 }
2566 return $revid if $revid;
2567} # end revID()
2568
2569
2570## DNSDB::addRDNS
2571# Adds a reverse DNS zone
2572# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2573# and boolean(ish) state (active/inactive)
2574# Returns a status code and message
2575sub addRDNS {
2576 my $self = shift;
2577 my $dbh = $self->{dbh};
2578 my $zone = shift;
2579
2580 # Autodetect formal .arpa zones
2581 if ($zone =~ /\.arpa\.?$/) {
2582 my $code;
2583 ($code,$zone) = _zone2cidr($zone);
2584 return ('FAIL', $zone) if $code eq 'FAIL';
2585 }
2586 $zone = NetAddr::IP->new($zone);
2587
2588 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2589 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2590 my $group = shift;
2591 my $state = shift;
2592 my $defloc = shift || '';
2593
2594 $state = 1 if $state =~ /^active$/;
2595 $state = 1 if $state =~ /^on$/;
2596 $state = 0 if $state =~ /^inactive$/;
2597 $state = 0 if $state =~ /^off$/;
2598
2599 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2600
2601# quick check to start to see if we've already got one
2602 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2603
2604 return ('FAIL', "Zone already exists") if $rdns_id;
2605
2606 # Allow transactions, and raise an exception on errors so we can catch it later.
2607 # Use local to make sure these get "reset" properly on exiting this block
2608 local $dbh->{AutoCommit} = 0;
2609 local $dbh->{RaiseError} = 1;
2610
2611 my $warnstr = '';
2612 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2613 # wrong, we should have a value to override this anyway.
2614
2615 # Wrap all the SQL in a transaction
2616 eval {
2617 # insert the zone...
2618 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2619 ($zone, $group, $state, $defloc) );
2620
2621 # get the ID...
2622 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2623
2624 $self->_log(rdns_id => $rdns_id, group_id => $group,
2625 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2626
2627 # ... and now we construct the standard records from the default set. NB: group should be variable.
2628 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2629 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2630 " VALUES ($rdns_id,?,?,?,?,?,?)");
2631 $sth->execute($group);
2632 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2633 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2634 if ($zone->{isv6}) {
2635 next if ($type == 65280 || $type == 65283);
2636 } else {
2637 next if ($type == 65281 || $type == 65284);
2638 }
2639
2640 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2641
2642 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2643 # On failure, tack a note on to a warning string and continue without adding this record.
2644 # While we're at it, we substitute $zone for ZONE in the value.
2645 if ($val eq 'ZONE') {
2646 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2647 next if $revpatt && ($type == 65282 || $type == 65283);
2648##fixme? do we care if we have multiple whole-zone templates?
2649 $val = $zone->network;
2650 } elsif ($val =~ /ZONE/) {
2651 my $tmpval = $val;
2652 $tmpval =~ s/ZONE//;
2653 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2654 # as either v4 or v6. May make this an off-by-default config flag
2655 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2656 if ($type == 12 || $type == 65282) {
2657 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2658 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2659 }
2660 my $addr;
2661 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2662 $val = $addr->addr;
2663 } else {
2664 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2665 next;
2666 }
2667 }
2668
2669 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2670 # NS records get this substitution on the value instead.
2671 $host = _ZONE($zone, $host) if $type != 2;
2672
2673 # Fill in the forward domain ID if we can find it, otherwise:
2674 # Coerce type down to PTR or PTR template if we can't
2675 my $domid = 0;
2676 if ($type >= 65280) {
2677 if (!($domid = $self->_hostparent($host))) {
2678 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2679 $type = $reverse_typemap{PTR};
2680 $domid = 0; # just to be explicit.
2681 }
2682 }
2683
2684 _caseclean(\$type, \$host, \$val, 'n', 'y') if $self->{lowercase};
2685
2686 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2687
2688 if ($typemap{$type} eq 'SOA') {
2689 my @tmp1 = split /:/, $host;
2690 my @tmp2 = split /:/, $val;
2691 $self->_log(rdns_id => $rdns_id, group_id => $group,
2692 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2693 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2694 $defttl = $tmp2[3];
2695 } else {
2696 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2697 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2698 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2699 }
2700 }
2701
2702 # Generate record based on provided pattern.
2703 if ($revpatt) {
2704 my $host;
2705 my $type = ($zone->{isv6} ? 65284 : 65283);
2706 my $val = $zone->network;
2707
2708 # Substitute $zone for ZONE in the hostname.
2709 $host = _ZONE($zone, $revpatt);
2710
2711 my $domid = 0;
2712 if (!($domid = $self->_hostparent($host))) {
2713 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2714 $type = 65282;
2715 $domid = 0; # just to be explicit.
2716 }
2717
2718 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2719 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2720 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2721 entry => $logentry." $val', TTL $defttl from pattern");
2722 }
2723
2724 # If there are warnings (presumably about default records skipped for cause) log them
2725 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2726 if $warnstr;
2727
2728 # once we get here, we should have suceeded.
2729 $dbh->commit;
2730 }; # end eval
2731
2732 if ($@) {
2733 my $msg = $@;
2734 eval { $dbh->rollback; };
2735 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2736 if $self->{log_failures};
2737 $dbh->commit; # since we enabled transactions earlier
2738 return ('FAIL',$msg);
2739 } else {
2740 my $retcode = 'OK';
2741 if ($warnstr) {
2742 $resultstr = $warnstr;
2743 $retcode = 'WARN';
2744 }
2745 return ($retcode, $rdns_id);
2746 }
2747
2748} # end addRDNS()
2749
2750
2751## DNSDB::getZoneCount
2752# Get count of zones in group or groups
2753# Takes a database handle and hash containing:
2754# - the "current" group
2755# - an array of "acceptable" groups
2756# - a flag for forward/reverse zones
2757# - Optionally accept a "starts with" and/or "contains" filter argument
2758# Returns an integer count of the resulting zone list.
2759sub getZoneCount {
2760 my $self = shift;
2761 my $dbh = $self->{dbh};
2762
2763 my %args = @_;
2764
2765 # Fail on bad curgroup argument. There's no sane fallback on this one.
2766 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2767 $errstr = "Bad or missing curgroup argument";
2768 return;
2769 }
2770 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2771 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2772 $errstr = "Bad childlist argument";
2773 return;
2774 }
2775
2776 my @filterargs;
2777 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2778 push @filterargs, "^$args{startwith}" if $args{startwith};
2779 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2780 push @filterargs, $args{filter} if $args{filter};
2781
2782 my $sql;
2783 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2784 if ($args{revrec} eq 'n') {
2785 $sql = "SELECT count(*) FROM domains".
2786 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2787 ($args{startwith} ? " AND domain ~* ?" : '').
2788 ($args{filter} ? " AND domain ~* ?" : '');
2789 } else {
2790 $sql = "SELECT count(*) FROM revzones".
2791 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2792 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2793# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2794 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2795 # we want to match both the formal and natural zone name
2796 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2797 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2798# } else {
2799# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2800# }
2801 }
2802 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2803 return $count;
2804} # end getZoneCount()
2805
2806
2807## DNSDB::getZoneList()
2808# Get a list of zones in the specified group(s)
2809# Takes the same arguments as getZoneCount() above
2810# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2811sub getZoneList {
2812 my $self = shift;
2813 my $dbh = $self->{dbh};
2814
2815 my %args = @_;
2816
2817 my @zonelist;
2818
2819 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2820 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2821
2822 # Fail on bad curgroup argument. There's no sane fallback on this one.
2823 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2824 $errstr = "Bad or missing curgroup argument";
2825 return;
2826 }
2827 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2828 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2829 $errstr = "Bad childlist argument";
2830 return;
2831 }
2832
2833 my @filterargs;
2834 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2835 push @filterargs, "^$args{startwith}" if $args{startwith};
2836 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2837 push @filterargs, $args{filter} if $args{filter};
2838
2839 my $sql;
2840 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2841 if ($args{revrec} eq 'n') {
2842 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2843 $sql = "SELECT domain_id AS zoneid,domain AS zone,status,groups.group_name AS group FROM domains".
2844 " INNER JOIN groups ON domains.group_id=groups.group_id".
2845 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2846 ($args{startwith} ? " AND domain ~* ?" : '').
2847 ($args{filter} ? " AND domain ~* ?" : '');
2848 } else {
2849##fixme: arguably startwith here is irrelevant. depends on the UI though.
2850 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2851 $sql = "SELECT rdns_id AS zoneid,revnet AS zone,status,groups.group_name AS group FROM revzones".
2852 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2853 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2854 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2855# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2856 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2857 # we want to match both the formal and natural zone name
2858 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2859 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2860# } else {
2861# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2862# }
2863 }
2864 # A common tail.
2865 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2866 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2867 " OFFSET ".$args{offset}*$self->{perpage});
2868
2869 my @working;
2870 my $zsth = $dbh->prepare($sql);
2871 $zsth->execute(@filterargs);
2872 while (my $zone = $zsth->fetchrow_hashref) {
2873 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2874 my $tmp = new NetAddr::IP $zone->{zone};
2875 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2876 }
2877 push @working, $zone;
2878 }
2879 return \@working;
2880} # end getZoneList()
2881
2882
2883## DNSDB::getZoneLocation()
2884# Retrieve the default location for a zone.
2885# Takes a database handle, forward/reverse flag, and zone ID
2886sub getZoneLocation {
2887 my $self = shift;
2888 my $dbh = $self->{dbh};
2889 my $revrec = shift;
2890 my $zoneid = shift;
2891
2892 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2893 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2894 undef, ($zoneid));
2895 return $loc;
2896} # end getZoneLocation()
2897
2898
2899## DNSDB::addGroup()
2900# Add a group
2901# Takes a database handle, group name, parent group, hashref for permissions,
2902# and optional template-vs-cloneme flag for the default records
2903# Returns a status code and message
2904sub addGroup {
2905 $errstr = '';
2906 my $self = shift;
2907 my $dbh = $self->{dbh};
2908 my $groupname = shift;
2909 my $pargroup = shift;
2910 my $permissions = shift;
2911
2912 # 0 indicates "custom", hardcoded.
2913 # Any other value clones that group's default records, if it exists.
2914 my $inherit = shift || 0;
2915##fixme: need a flag to indicate clone records or <?> ?
2916
2917 # Allow transactions, and raise an exception on errors so we can catch it later.
2918 # Use local to make sure these get "reset" properly on exiting this block
2919 local $dbh->{AutoCommit} = 0;
2920 local $dbh->{RaiseError} = 1;
2921
2922 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2923
2924 return ('FAIL', "Group already exists") if $group_id;
2925
2926 # Wrap all the SQL in a transaction
2927 eval {
2928 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2929
2930 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2931
2932 # We work through the whole set of permissions instead of specifying them so
2933 # that when we add a new permission, we don't have to change the code anywhere
2934 # that doesn't explicitly deal with that specific permission.
2935 my @permvals;
2936 foreach (@permtypes) {
2937 if (!defined ($permissions->{$_})) {
2938 push @permvals, 0;
2939 } else {
2940 push @permvals, $permissions->{$_};
2941 }
2942 }
2943 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2944 undef, ($groupid, @permvals) );
2945 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2946 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2947
2948 # Default records
2949 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2950 "VALUES ($groupid,?,?,?,?,?,?,?)");
2951 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2952 "VALUES ($groupid,?,?,?,?)");
2953 if ($inherit) {
2954 # Duplicate records from parent. Actually relying on inherited records feels
2955 # very fragile, and it would be problematic to roll over at a later time.
2956 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2957 $sth2->execute($pargroup);
2958 while (my @clonedata = $sth2->fetchrow_array) {
2959 $sthf->execute(@clonedata);
2960 }
2961 # And now the reverse records
2962 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2963 $sth2->execute($pargroup);
2964 while (my @clonedata = $sth2->fetchrow_array) {
2965 $sthr->execute(@clonedata);
2966 }
2967 } else {
2968##fixme: Hardcoding is Bad, mmmmkaaaay?
2969 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2970 # could load from a config file, but somewhere along the line we need hardcoded bits.
2971 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2972 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2973 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2974 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2975 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2976 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2977 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2978 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2979 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2980 }
2981
2982 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2983
2984 # once we get here, we should have suceeded.
2985 $dbh->commit;
2986 }; # end eval
2987
2988 if ($@) {
2989 my $msg = $@;
2990 eval { $dbh->rollback; };
2991 if ($self->{log_failures}) {
2992 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2993 $dbh->commit;
2994 }
2995 return ('FAIL',$msg);
2996 }
2997
2998 return ('OK','OK');
2999} # end addGroup()
3000
3001
3002## DNSDB::delGroup()
3003# Delete a group.
3004# Takes a group ID
3005# Returns a status code and message
3006sub delGroup {
3007 my $self = shift;
3008 my $dbh = $self->{dbh};
3009 my $groupid = shift;
3010
3011 # Allow transactions, and raise an exception on errors so we can catch it later.
3012 # Use local to make sure these get "reset" properly on exiting this block
3013 local $dbh->{AutoCommit} = 0;
3014 local $dbh->{RaiseError} = 1;
3015
3016##fixme: locate "knowable" error conditions and deal with them before the eval
3017# ... or inside, whatever.
3018# -> domains still exist in group
3019# -> ...
3020 my $failmsg = '';
3021 my $resultmsg = '';
3022
3023 # collect some pieces for logging and error messages
3024 my $groupname = $self->groupName($groupid);
3025 my $parid = $self->parentID(id => $groupid, type => 'group');
3026
3027 # Wrap all the SQL in a transaction
3028 eval {
3029 # Check for Things in the group
3030 $failmsg = "Can't remove group $groupname";
3031 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
3032 die "$grpcnt groups still in group\n" if $grpcnt;
3033 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
3034 die "$domcnt domains still in group\n" if $domcnt;
3035 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
3036 die "$revcnt reverse zones still in group\n" if $revcnt;
3037 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
3038 die "$usercnt users still in group\n" if $usercnt;
3039
3040 $failmsg = "Failed to delete default records for $groupname";
3041 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
3042 $failmsg = "Failed to delete default reverse records for $groupname";
3043 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
3044 $failmsg = "Failed to remove group $groupname";
3045 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
3046
3047 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
3048 $resultmsg = "Deleted group $groupname";
3049
3050 # once we get here, we should have suceeded.
3051 $dbh->commit;
3052 }; # end eval
3053
3054 if ($@) {
3055 my $msg = $@;
3056 eval { $dbh->rollback; };
3057 if ($self->{log_failures}) {
3058 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
3059 $dbh->commit; # since we enabled transactions earlier
3060 }
3061 return ('FAIL',"$failmsg: $msg");
3062 }
3063
3064 return ('OK',$resultmsg);
3065} # end delGroup()
3066
3067
3068## DNSDB::getChildren()
3069# Get a list of all groups whose parent^n is group <n>
3070# Takes a database handle, group ID, reference to an array to put the group IDs in,
3071# and an optional flag to return only immediate children or all children-of-children
3072# default to returning all children
3073# Calls itself
3074sub getChildren {
3075 $errstr = '';
3076 my $self = shift;
3077 my $dbh = $self->{dbh};
3078 my $rootgroup = shift;
3079 my $groupdest = shift;
3080 my $immed = shift || 'all';
3081
3082 # special break for default group; otherwise we get stuck.
3083 if ($rootgroup == 1) {
3084 # by definition, group 1 is the Root Of All Groups
3085 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
3086 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
3087 $sth->execute;
3088 while (my @this = $sth->fetchrow_array) {
3089 push @$groupdest, @this;
3090 }
3091 } else {
3092 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
3093 $sth->execute($rootgroup);
3094 return if $sth->rows == 0;
3095 my @grouplist;
3096 while (my ($group) = $sth->fetchrow_array) {
3097 push @$groupdest, $group;
3098 $self->getChildren($group, $groupdest) if $immed eq 'all';
3099 }
3100 }
3101} # end getChildren()
3102
3103
3104## DNSDB::groupName()
3105# Return the group name based on a group ID
3106# Takes a database handle and the group ID
3107# Returns the group name or undef on failure
3108sub groupName {
3109 $errstr = '';
3110 my $self = shift;
3111 my $dbh = $self->{dbh};
3112 my $groupid = shift;
3113 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
3114 $sth->execute($groupid);
3115 my ($groupname) = $sth->fetchrow_array();
3116 $errstr = $DBI::errstr if !$groupname;
3117 return $groupname if $groupname;
3118} # end groupName
3119
3120
3121## DNSDB::getGroupCount()
3122# Get count of subgroups in group or groups
3123# Takes a database handle and hash containing:
3124# - the "current" group
3125# - an array of "acceptable" groups
3126# - Optionally accept a "starts with" and/or "contains" filter argument
3127# Returns an integer count of the resulting group list.
3128sub getGroupCount {
3129 my $self = shift;
3130 my $dbh = $self->{dbh};
3131
3132 my %args = @_;
3133
3134 # Fail on bad curgroup argument. There's no sane fallback on this one.
3135 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3136 $errstr = "Bad or missing curgroup argument";
3137 return;
3138 }
3139 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3140 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3141 $errstr = "Bad childlist argument";
3142 return;
3143 }
3144
3145 my @filterargs;
3146 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3147 push @filterargs, "^$args{startwith}" if $args{startwith};
3148 push @filterargs, $args{filter} if $args{filter};
3149
3150 my $sql = "SELECT count(*) FROM groups ".
3151 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3152 ($args{startwith} ? " AND group_name ~* ?" : '').
3153 ($args{filter} ? " AND group_name ~* ?" : '');
3154 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3155 $errstr = $dbh->errstr if !$count;
3156 return $count;
3157} # end getGroupCount
3158
3159
3160## DNSDB::getGroupList()
3161# Get a list of sub^n-groups in the specified group(s)
3162# Takes the same arguments as getGroupCount() above
3163# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
3164sub getGroupList {
3165 my $self = shift;
3166 my $dbh = $self->{dbh};
3167
3168 my %args = @_;
3169
3170 # Fail on bad curgroup argument. There's no sane fallback on this one.
3171 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3172 $errstr = "Bad or missing curgroup argument";
3173 return;
3174 }
3175 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3176 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3177 $errstr = "Bad childlist argument";
3178 return;
3179 }
3180
3181 my @filterargs;
3182 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3183 push @filterargs, "^$args{startwith}" if $args{startwith};
3184 push @filterargs, $args{filter} if $args{filter};
3185
3186 # protection against bad or missing arguments
3187 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3188 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3189 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3190
3191 # munge sortby for columns in database
3192 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
3193 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
3194
3195 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
3196 FROM groups g
3197 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
3198 ).
3199 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3200 ($args{startwith} ? " AND g.group_name ~* ?" : '').
3201 ($args{filter} ? " AND g.group_name ~* ?" : '').
3202 " GROUP BY g.group_id, g.group_name, g2.group_name ".
3203 " ORDER BY $args{sortby} $args{sortorder} ".
3204 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3205 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3206 $errstr = $dbh->errstr if !$glist;
3207
3208 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
3209 # this means there's lots of crunching needed to trim the result set back down.
3210 # So instead we track the order of the groups, and push the counts into the
3211 # arrayref result separately.
3212##fixme: put this whole sub in a transaction? might be
3213# needed for accurate results on very busy systems.
3214##fixme: large group lists need prepared statements?
3215#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
3216#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
3217#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
3218 foreach (@{$glist}) {
3219 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
3220 $$_{nusers} = $ucnt;
3221 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
3222 $$_{ndomains} = $dcnt;
3223 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
3224 $$_{nrevzones} = $rcnt;
3225 }
3226
3227 return $glist;
3228} # end getGroupList
3229
3230
3231## DNSDB::groupID()
3232# Return the group ID based on the group name
3233# Takes a database handle and the group name
3234# Returns the group ID or undef on failure
3235sub groupID {
3236 $errstr = '';
3237 my $self = shift;
3238 my $dbh = $self->{dbh};
3239 my $group = shift;
3240 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
3241 $errstr = $DBI::errstr if !$grpid;
3242 return $grpid if $grpid;
3243} # end groupID()
3244
3245
3246## DNSDB::addUser()
3247# Add a user.
3248# Takes a DB handle, username, group ID, password, state (active/inactive).
3249# Optionally accepts:
3250# user type (user/admin) - defaults to user
3251# permissions string - defaults to inherit from group
3252# three valid forms:
3253# i - Inherit permissions
3254# c:<user_id> - Clone permissions from <user_id>
3255# C:<permission list> - Set these specific permissions
3256# first name - defaults to username
3257# last name - defaults to blank
3258# phone - defaults to blank (could put other data within column def)
3259# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
3260sub addUser {
3261 $errstr = '';
3262 my $self = shift;
3263 my $dbh = $self->{dbh};
3264 my $username = shift;
3265 my $group = shift;
3266 my $pass = shift;
3267 my $state = shift;
3268
3269 return ('FAIL', "Missing one or more required entries") if !defined($state);
3270 return ('FAIL', "Username must not be blank") if !$username;
3271
3272 # Munge in some alternate state values
3273 $state = 1 if $state =~ /^active$/;
3274 $state = 1 if $state =~ /^on$/;
3275 $state = 0 if $state =~ /^inactive$/;
3276 $state = 0 if $state =~ /^off$/;
3277
3278 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
3279
3280 my $permstring = shift || 'i'; # default is to inhert permissions from group
3281
3282 my $fname = shift || $username;
3283 my $lname = shift || '';
3284 my $phone = shift || ''; # not going format-check
3285
3286 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
3287 my $user_id;
3288
3289# quick check to start to see if we've already got one
3290 $sth->execute($username);
3291 ($user_id) = $sth->fetchrow_array;
3292
3293 return ('FAIL', "User already exists") if $user_id;
3294
3295 # Allow transactions, and raise an exception on errors so we can catch it later.
3296 # Use local to make sure these get "reset" properly on exiting this block
3297 local $dbh->{AutoCommit} = 0;
3298 local $dbh->{RaiseError} = 1;
3299
3300 # Wrap all the SQL in a transaction
3301 eval {
3302 # insert the user... note we set inherited perms by default since
3303 # it's simple and cleans up some other bits of state
3304##fixme: need better handling of case of inherited or missing (!!) permissions entries
3305 my $sth = $dbh->prepare("INSERT INTO users ".
3306 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
3307 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
3308 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
3309
3310 # get the ID...
3311 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
3312
3313# Permissions! Gotta set'em all!
3314 die "Invalid permission string $permstring\n"
3315 if $permstring !~ /^(?:
3316 i # inherit
3317 |c:\d+ # clone
3318 # custom. no, the leading , is not a typo
3319 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
3320 )$/x;
3321# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
3322 if ($permstring ne 'i') {
3323 # for cloned or custom permissions, we have to create a new permissions entry.
3324 my $clonesrc = $group;
3325 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
3326 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
3327 "SELECT $permlist,? FROM permissions WHERE permission_id=".
3328 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
3329 undef, ($user_id,$clonesrc) );
3330 $dbh->do("UPDATE users SET permission_id=".
3331 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
3332 "WHERE user_id=?", undef, ($user_id, $user_id) );
3333 }
3334 if ($permstring =~ /^C:/) {
3335 # finally for custom permissions, we set the passed-in permissions (and unset
3336 # any that might have been brought in by the clone operation above)
3337 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
3338 undef, ($user_id) );
3339 foreach (@permtypes) {
3340 if ($permstring =~ /,$_/) {
3341 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
3342 } else {
3343 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
3344 }
3345 }
3346 }
3347
3348 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
3349
3350##fixme: add another table to hold name/email for log table?
3351
3352 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
3353 # once we get here, we should have suceeded.
3354 $dbh->commit;
3355 }; # end eval
3356
3357 if ($@) {
3358 my $msg = $@;
3359 eval { $dbh->rollback; };
3360 if ($self->{log_failures}) {
3361 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
3362 $dbh->commit; # since we enabled transactions earlier
3363 }
3364 return ('FAIL',"Error adding user $username: $msg");
3365 }
3366
3367 return ('OK',"User $username ($fname $lname) added");
3368} # end addUser
3369
3370
3371## DNSDB::getUserCount()
3372# Get count of users in group
3373# Takes a database handle and hash containing at least the current group, and optionally:
3374# - a reference list of secondary groups
3375# - a filter string
3376# - a "Starts with" string
3377sub getUserCount {
3378 my $self = shift;
3379 my $dbh = $self->{dbh};
3380
3381 my %args = @_;
3382
3383 # Fail on bad curgroup argument. There's no sane fallback on this one.
3384 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3385 $errstr = "Bad or missing curgroup argument";
3386 return;
3387 }
3388 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3389 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3390 $errstr = "Bad childlist argument";
3391 return;
3392 }
3393
3394 my @filterargs;
3395 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3396 push @filterargs, "^$args{startwith}" if $args{startwith};
3397 push @filterargs, $args{filter} if $args{filter};
3398
3399 my $sql = "SELECT count(*) FROM users ".
3400 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3401 ($args{startwith} ? " AND username ~* ?" : '').
3402 ($args{filter} ? " AND username ~* ?" : '');
3403 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3404 $errstr = $dbh->errstr if !$count;
3405 return $count;
3406} # end getUserCount()
3407
3408
3409## DNSDB::getUserList()
3410# Get list of users
3411# Takes the same arguments as getUserCount() above, plus optional:
3412# - sort field
3413# - sort order
3414# - offset/return-all-everything flag (defaults to $perpage records)
3415sub getUserList {
3416 my $self = shift;
3417 my $dbh = $self->{dbh};
3418
3419 my %args = @_;
3420
3421 # Fail on bad curgroup argument. There's no sane fallback on this one.
3422 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3423 $errstr = "Bad or missing curgroup argument";
3424 return;
3425 }
3426 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3427 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3428 $errstr = "Bad childlist argument";
3429 return;
3430 }
3431
3432 my @filterargs;
3433 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3434 push @filterargs, "^$args{startwith}" if $args{startwith};
3435 push @filterargs, $args{filter} if $args{filter};
3436
3437 # better to request sorts on "simple" names, but it means we need to map it to real columns
3438 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3439 fname => 'fname');
3440 $args{sortby} = $sortmap{$args{sortby}};
3441
3442 # protection against bad or missing arguments
3443 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3444 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3445 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3446
3447 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3448 "FROM users u ".
3449 "INNER JOIN groups g ON u.group_id=g.group_id ".
3450 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3451 ($args{startwith} ? " AND u.username ~* ?" : '').
3452 ($args{filter} ? " AND u.username ~* ?" : '').
3453 " AND NOT u.type = 'R' ".
3454 " ORDER BY $args{sortby} $args{sortorder} ".
3455 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3456 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3457 $errstr = $dbh->errstr if !$ulist;
3458 return $ulist;
3459} # end getUserList()
3460
3461
3462## DNSDB::getUserDropdown()
3463# Get a list of usernames for use in a dropdown menu.
3464# Takes a database handle, current group, and optional "tag this as selected" flag.
3465# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3466sub getUserDropdown {
3467 my $self = shift;
3468 my $dbh = $self->{dbh};
3469 my $grp = shift;
3470 my $sel = shift || 0;
3471
3472 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3473 $sth->execute($grp);
3474
3475 my @userlist;
3476 while (my ($username,$uid) = $sth->fetchrow_array) {
3477 my %row = (
3478 username => $username,
3479 uid => $uid,
3480 selected => ($sel == $uid ? 1 : 0)
3481 );
3482 push @userlist, \%row;
3483 }
3484 return \@userlist;
3485} # end getUserDropdown()
3486
3487
3488## DNSDB:: updateUser()
3489# Update general data about user
3490sub updateUser {
3491 my $self = shift;
3492 my $dbh = $self->{dbh};
3493
3494##fixme: tweak calling convention so that we can update any given bit of data
3495 my $uid = shift;
3496 my $username = shift;
3497 my $group = shift;
3498 my $pass = shift;
3499 my $state = shift;
3500 my $type = shift || 'u';
3501 my $fname = shift || $username;
3502 my $lname = shift || '';
3503 my $phone = shift || ''; # not going format-check
3504
3505 my $resultmsg = '';
3506
3507 # Munge in some alternate state values
3508 $state = 1 if $state =~ /^active$/;
3509 $state = 1 if $state =~ /^on$/;
3510 $state = 0 if $state =~ /^inactive$/;
3511 $state = 0 if $state =~ /^off$/;
3512
3513 # Allow transactions, and raise an exception on errors so we can catch it later.
3514 # Use local to make sure these get "reset" properly on exiting this block
3515 local $dbh->{AutoCommit} = 0;
3516 local $dbh->{RaiseError} = 1;
3517
3518 my $sth;
3519
3520 # Password can be left blank; if so we assume there's one on file.
3521 # Actual blank passwords are bad, mm'kay?
3522 if (!$pass) {
3523 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3524 } else {
3525 $pass = unix_md5_crypt($pass);
3526 }
3527
3528 eval {
3529 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3530 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3531 $resultmsg = "Updated user info for $username ($fname $lname)";
3532 $self->_log(group_id => $group, entry => $resultmsg);
3533 $dbh->commit;
3534 };
3535 if ($@) {
3536 my $msg = $@;
3537 eval { $dbh->rollback; };
3538 if ($self->{log_failures}) {
3539 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3540 $dbh->commit; # since we enabled transactions earlier
3541 }
3542 return ('FAIL',"Error updating user $username: $msg");
3543 }
3544
3545 return ('OK',$resultmsg);
3546} # end updateUser()
3547
3548
3549## DNSDB::delUser()
3550# Delete a user.
3551# Takes a database handle and user ID
3552# Returns a success/failure code and matching message
3553sub delUser {
3554 my $self = shift;
3555 my $dbh = $self->{dbh};
3556 my $userid = shift;
3557
3558 return ('FAIL',"Bad userid") if !defined($userid);
3559
3560 my $userdata = $self->getUserData($userid);
3561
3562 # Allow transactions, and raise an exception on errors so we can catch it later.
3563 # Use local to make sure these get "reset" properly on exiting this block
3564 local $dbh->{AutoCommit} = 0;
3565 local $dbh->{RaiseError} = 1;
3566
3567 eval {
3568 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3569 $self->_log(group_id => $userdata->{group_id},
3570 entry => "Deleted user ID $userid/".$userdata->{username}.
3571 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3572 $dbh->commit;
3573 };
3574 if ($@) {
3575 my $msg = $@;
3576 eval { $dbh->rollback; };
3577 if ($self->{log_failures}) {
3578 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3579 "$userid/".$userdata->{username}.": $msg");
3580 $dbh->commit;
3581 }
3582 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3583 }
3584
3585 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3586} # end delUser
3587
3588
3589## DNSDB::userFullName()
3590# Return a pretty string!
3591# Takes a user_id and optional printf-ish string to indicate which pieces where:
3592# %u for the username
3593# %f for the first name
3594# %l for the last name
3595# All other text in the passed string will be left as-is.
3596##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3597sub userFullName {
3598 $errstr = '';
3599 my $self = shift;
3600 my $dbh = $self->{dbh};
3601 my $userid = shift;
3602 my $fullformat = shift || '%f %l (%u)';
3603 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3604 $sth->execute($userid);
3605 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3606 $errstr = $DBI::errstr if !$uname;
3607
3608 $fullformat =~ s/\%u/$uname/g;
3609 $fullformat =~ s/\%f/$fname/g;
3610 $fullformat =~ s/\%l/$lname/g;
3611
3612 return $fullformat;
3613} # end userFullName
3614
3615
3616## DNSDB::userStatus()
3617# Sets and/or returns a user's status
3618# Takes a database handle, user ID and optionally a status argument
3619# Returns undef on errors.
3620sub userStatus {
3621 my $self = shift;
3622 my $dbh = $self->{dbh};
3623 my $id = shift;
3624 my $newstatus = shift || 'mu';
3625
3626 return undef if $id !~ /^\d+$/;
3627
3628 my $userdata = $self->getUserData($id);
3629
3630 # Allow transactions, and raise an exception on errors so we can catch it later.
3631 # Use local to make sure these get "reset" properly on exiting this block
3632 local $dbh->{AutoCommit} = 0;
3633 local $dbh->{RaiseError} = 1;
3634
3635 if ($newstatus ne 'mu') {
3636 # ooo, fun! let's see what we were passed for status
3637 eval {
3638 $newstatus = 0 if $newstatus eq 'useroff';
3639 $newstatus = 1 if $newstatus eq 'useron';
3640 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3641
3642 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3643 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3644
3645 my %loghash;
3646 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3647 $loghash{entry} = $resultstr;
3648 $self->_log(%loghash);
3649
3650 $dbh->commit;
3651 };
3652 if ($@) {
3653 my $msg = $@;
3654 eval { $dbh->rollback; };
3655 $resultstr = '';
3656 $errstr = $msg;
3657##fixme: failure logging?
3658 return;
3659 }
3660 }
3661
3662 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3663 return $status;
3664} # end userStatus()
3665
3666
3667## DNSDB::getUserData()
3668# Get misc user data for display
3669sub getUserData {
3670 my $self = shift;
3671 my $dbh = $self->{dbh};
3672 my $uid = shift;
3673
3674 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3675 "FROM users WHERE user_id=?");
3676 $sth->execute($uid);
3677 return $sth->fetchrow_hashref();
3678} # end getUserData()
3679
3680
3681## DNSDB::addLoc()
3682# Add a new location.
3683# Takes a database handle, group ID, short and long description, and a comma-separated
3684# list of IP addresses.
3685# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3686sub addLoc {
3687 my $self = shift;
3688 my $dbh = $self->{dbh};
3689 my $grp = shift;
3690 my $shdesc = shift;
3691 my $comments = shift;
3692 my $iplist = shift;
3693
3694 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3695 $comments = '' if !$comments;
3696 $iplist = '' if !$iplist;
3697
3698 my $loc;
3699
3700 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3701 # for now; 676 locations should satisfy all but the largest of the huge networks.
3702 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3703 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3704
3705# add just after "my $origloc = $loc;":
3706# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3707# # and wrap it around.
3708# # Yes, they skip a couple of possibles. No, I don't care.
3709# $loc = 'aA' if $loc eq 'zz';
3710# $loc = 'Aa' if $loc eq 'zZ';
3711# $loc = 'ZA' if $loc eq 'Zz';
3712# $loc = 'aa' if $loc eq 'ZZ';
3713
3714 # Allow transactions, and raise an exception on errors so we can catch it later.
3715 # Use local to make sure these get "reset" properly on exiting this block
3716 local $dbh->{AutoCommit} = 0;
3717 local $dbh->{RaiseError} = 1;
3718
3719##fixme: There is probably a far better way to do this. Sequential increments
3720# are marginally less stupid that pure random generation though, and the existence
3721# check makes sure we don't stomp on an imported one.
3722
3723 eval {
3724 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3725 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3726 ($loc) = ($loc =~ /^(..)/) if $loc;
3727 my $origloc = $loc;
3728 $loc = 'aa' if !$loc;
3729 # Make a change...
3730 $loc++;
3731 # ... and keep changing if it exists
3732 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3733 $loc++;
3734 ($loc) = ($loc =~ /^(..)/);
3735 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3736##fixme: really need to handle this case faster somehow
3737#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3738 }
3739 # And now we should have a unique location. tinydns fundamentally limits the
3740 # number of these but there's no doc on what characters are valid.
3741 $shdesc = $loc if !$shdesc;
3742 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3743 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3744 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3745 $dbh->commit;
3746 };
3747 if ($@) {
3748 my $msg = $@;
3749 eval { $dbh->rollback; };
3750 if ($self->{log_failures}) {
3751 $shdesc = $loc if !$shdesc;
3752 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3753 $dbh->commit;
3754 }
3755 return ('FAIL',$msg);
3756 }
3757
3758 return ('OK',$loc);
3759} # end addLoc()
3760
3761
3762## DNSDB::updateLoc()
3763# Update details of a location.
3764# Takes a database handle, location ID, group ID, short description,
3765# long comments/notes, and comma/space-separated IP list
3766# Returns a result code and message
3767sub updateLoc {
3768 my $self = shift;
3769 my $dbh = $self->{dbh};
3770 my $loc = shift;
3771 my $grp = shift;
3772 my $shdesc = shift;
3773 my $comments = shift;
3774 my $iplist = shift;
3775
3776 $shdesc = '' if !$shdesc;
3777 $comments = '' if !$comments;
3778 $iplist = '' if !$iplist;
3779
3780 # Allow transactions, and raise an exception on errors so we can catch it later.
3781 # Use local to make sure these get "reset" properly on exiting this block
3782 local $dbh->{AutoCommit} = 0;
3783 local $dbh->{RaiseError} = 1;
3784
3785 my $oldloc = $self->getLoc($loc);
3786 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3787
3788 eval {
3789 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3790 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3791 $self->_log(entry => $okmsg);
3792 $dbh->commit;
3793 };
3794 if ($@) {
3795 my $msg = $@;
3796 eval { $dbh->rollback; };
3797 if ($self->{log_failures}) {
3798 $shdesc = $loc if !$shdesc;
3799 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3800 $dbh->commit;
3801 }
3802 return ('FAIL',$msg);
3803 }
3804
3805 return ('OK',$okmsg);
3806} # end updateLoc()
3807
3808
3809## DNSDB::delLoc()
3810sub delLoc {
3811 my $self = shift;
3812 my $dbh = $self->{dbh};
3813 my $loc = shift;
3814
3815 # Allow transactions, and raise an exception on errors so we can catch it later.
3816 # Use local to make sure these get "reset" properly on exiting this block
3817 local $dbh->{AutoCommit} = 0;
3818 local $dbh->{RaiseError} = 1;
3819
3820 my $oldloc = $self->getLoc($loc);
3821 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3822 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3823
3824 eval {
3825 # Check for records with this location first. Deleting a location without deleting records
3826 # tagged for that location will render them unpublished without other warning.
3827 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3828 die "Records still exist in location $olddesc\n" if $r;
3829 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3830 $self->_log(entry => $okmsg);
3831 $dbh->commit;
3832 };
3833 if ($@) {
3834 my $msg = $@;
3835 eval { $dbh->rollback; };
3836 if ($self->{log_failures}) {
3837 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3838 $dbh->commit;
3839 }
3840 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3841 }
3842
3843 return ('OK',$okmsg);
3844} # end delLoc()
3845
3846
3847## DNSDB::getLoc()
3848# Get details about a location/view
3849# Takes a database handle and location ID.
3850# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3851sub getLoc {
3852 my $self = shift;
3853 my $dbh = $self->{dbh};
3854 my $loc = shift;
3855
3856 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3857 $sth->execute($loc);
3858 return $sth->fetchrow_hashref();
3859} # end getLoc()
3860
3861
3862## DNSDB::getLocCount()
3863# Get count of locations/views
3864# Takes a database handle and hash containing at least the current group, and optionally:
3865# - a reference list of secondary groups
3866# - a filter string
3867# - a "Starts with" string
3868sub getLocCount {
3869 my $self = shift;
3870 my $dbh = $self->{dbh};
3871
3872 my %args = @_;
3873
3874 # Fail on bad curgroup argument. There's no sane fallback on this one.
3875 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3876 $errstr = "Bad or missing curgroup argument";
3877 return;
3878 }
3879 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3880 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3881 $errstr = "Bad childlist argument";
3882 return;
3883 }
3884
3885 my @filterargs;
3886 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3887 push @filterargs, "^$args{startwith}" if $args{startwith};
3888 push @filterargs, $args{filter} if $args{filter};
3889
3890 my $sql = "SELECT count(*) FROM locations ".
3891 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3892 ($args{startwith} ? " AND description ~* ?" : '').
3893 ($args{filter} ? " AND description ~* ?" : '');
3894 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3895 $errstr = $dbh->errstr if !$count;
3896 return $count;
3897} # end getLocCount()
3898
3899
3900## DNSDB::getLocList()
3901sub getLocList {
3902 my $self = shift;
3903 my $dbh = $self->{dbh};
3904
3905 my %args = @_;
3906
3907 # Fail on bad curgroup argument. There's no sane fallback on this one.
3908 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3909 $errstr = "Bad or missing curgroup argument";
3910 return;
3911 }
3912 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3913 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3914 $errstr = "Bad childlist argument";
3915 return;
3916 }
3917
3918 my @filterargs;
3919 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3920 push @filterargs, "^$args{startwith}" if $args{startwith};
3921 push @filterargs, $args{filter} if $args{filter};
3922
3923 # better to request sorts on "simple" names, but it means we need to map it to real columns
3924# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3925# fname => 'fname');
3926# $args{sortby} = $sortmap{$args{sortby}};
3927
3928 # protection against bad or missing arguments
3929 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3930 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3931 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3932
3933 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3934 "FROM locations l ".
3935 "INNER JOIN groups g ON l.group_id=g.group_id ".
3936 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3937 ($args{startwith} ? " AND l.description ~* ?" : '').
3938 ($args{filter} ? " AND l.description ~* ?" : '').
3939 " ORDER BY $args{sortby} $args{sortorder} ".
3940 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3941 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3942 $errstr = $dbh->errstr if !$ulist;
3943 return $ulist;
3944} # end getLocList()
3945
3946
3947## DNSDB::getLocDropdown()
3948# Get a list of location names for use in a dropdown menu.
3949# Takes a database handle, current group, and optional "tag this as selected" flag.
3950# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3951sub getLocDropdown {
3952 my $self = shift;
3953 my $dbh = $self->{dbh};
3954 my $grp = shift;
3955 my $sel = shift || '';
3956
3957 my $sth = $dbh->prepare(qq(
3958 SELECT description,location FROM locations
3959 WHERE group_id=?
3960 ORDER BY description
3961 ) );
3962 $sth->execute($grp);
3963
3964 my @loclist;
3965 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3966 while (my ($locname, $loc) = $sth->fetchrow_array) {
3967 my %row = (
3968 locname => $locname,
3969 loc => $loc,
3970 selected => ($sel eq $loc ? 1 : 0)
3971 );
3972 push @loclist, \%row;
3973 }
3974 return \@loclist;
3975} # end getLocDropdown()
3976
3977
3978## DNSDB::getSOA()
3979# Return all suitable fields from an SOA record in separate elements of a hash
3980# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3981sub getSOA {
3982 $errstr = '';
3983 my $self = shift;
3984 my $dbh = $self->{dbh};
3985 my $def = shift;
3986 my $rev = shift;
3987 my $id = shift;
3988
3989 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3990 # - should really attach serial to the zone parent somewhere
3991
3992 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3993 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3994 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3995 return if !$ret;
3996##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3997
3998 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3999 delete $ret->{host};
4000 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
4001 delete $ret->{val};
4002
4003 return $ret;
4004} # end getSOA()
4005
4006
4007## DNSDB::updateSOA()
4008# Update the specified SOA record
4009# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
4010# Returns a two-element list with a result code and message
4011sub updateSOA {
4012 my $self = shift;
4013 my $dbh = $self->{dbh};
4014 my $defrec = shift;
4015 my $revrec = shift;
4016
4017 my %soa = @_;
4018
4019 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
4020
4021 my $msg;
4022 my %logdata;
4023 if ($defrec eq 'n') {
4024 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
4025 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
4026 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
4027 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
4028 } else {
4029 $logdata{group_id} = $soa{id};
4030 }
4031 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
4032 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
4033
4034 # Allow transactions, and raise an exception on errors so we can catch it later.
4035 # Use local to make sure these get "reset" properly on exiting this block
4036 local $dbh->{AutoCommit} = 0;
4037 local $dbh->{RaiseError} = 1;
4038
4039 eval {
4040 if (!$oldsoa) {
4041 # old SOA record is missing for some reason. create a new one.
4042 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
4043 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
4044 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
4045 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
4046 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
4047 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
4048 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
4049 } else {
4050 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
4051 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
4052 $soa{ttl}, $oldsoa->{record_id}) );
4053 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
4054 "SOA for $parname: ".
4055 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
4056 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
4057 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
4058 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
4059 }
4060 $logdata{entry} = $msg;
4061 $self->_log(%logdata);
4062
4063 $dbh->commit;
4064 };
4065 if ($@) {
4066 $msg = $@;
4067 eval { $dbh->rollback; };
4068 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
4069 "SOA record for $parname: $msg";
4070 if ($self->{log_failures}) {
4071 $self->_log(%logdata);
4072 $dbh->commit;
4073 }
4074 return ('FAIL', $logdata{entry});
4075 } else {
4076 return ('OK', $msg);
4077 }
4078} # end updateSOA()
4079
4080
4081## DNSDB::getRecLine()
4082# Return all data fields for a zone record in separate elements of a hash
4083# Takes a database handle, default/live flag, forward/reverse flag, and record ID
4084sub getRecLine {
4085 $errstr = '';
4086 my $self = shift;
4087 my $dbh = $self->{dbh};
4088 my $defrec = shift;
4089 my $revrec = shift;
4090 my $id = shift;
4091
4092##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
4093 my $sql = "SELECT record_id,host,type,val,ttl".
4094 ($defrec eq 'n' ? ',location' : '').
4095 ($revrec eq 'n' ? ',distance,weight,port' : '').
4096 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
4097 _rectable($defrec,$revrec)." WHERE record_id=?";
4098 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
4099
4100 if ($dbh->err) {
4101 $errstr = $DBI::errstr;
4102 return undef;
4103 }
4104
4105 if (!$ret) {
4106 $errstr = "No such record";
4107 return undef;
4108 }
4109
4110 # explicitly set a parent id
4111 if ($defrec eq 'y') {
4112 $ret->{parid} = $ret->{group_id};
4113 } else {
4114 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
4115 # and a secondary if we have a custom type that lives in both a forward and reverse zone
4116 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
4117 }
4118 $ret->{address} = $ret->{val}; # because.
4119
4120 return $ret;
4121}
4122
4123
4124##fixme: should use above (getRecLine()) to get lines for below?
4125## DNSDB::getRecList()
4126# Return records for a group or zone
4127# Takes a default/live flag, group or zone ID, start,
4128# number of records, sort field, and sort order
4129# Returns a reference to an array of hashes
4130sub getRecList {
4131 $errstr = '';
4132 my $self = shift;
4133 my $dbh = $self->{dbh};
4134
4135 my %args = @_;
4136
4137 $args{revrec} = 'n' if !$args{revrec};
4138 $args{defrec} = 'n' if !$args{defrec};
4139
4140 # protection against bad or missing arguments
4141 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4142 my $defsort;
4143 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
4144 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
4145 $args{sortby} = '' if !$args{sortby};
4146 $args{sortby} = $defsort if !$args{revrec};
4147 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
4148 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4149 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
4150
4151
4152##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
4153 my @bindvars;
4154 my $sql = "SELECT r.record_id,";
4155 # only include the parent info if we don't already know which parent we're in
4156 $sql .= "r.domain_id,r.rdns_id," unless $args{id};
4157 $sql .= "r.host,r.type,r.val,r.ttl";
4158 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
4159 if $args{defrec} eq 'n';
4160 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
4161 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
4162 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
4163 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
4164 $sql .= "WHERE NOT r.type=$reverse_typemap{SOA}";
4165
4166 # "normal" record list
4167 if ($args{id}) {
4168 $sql .= " AND "._recparent($args{defrec},$args{revrec})." = ?";
4169 push @bindvars, $args{id};
4170 }
4171
4172 # Filtering on host/val (mainly normal record list)
4173 if ($args{filter}) {
4174 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
4175 my $tmp = join('.',reverse(split(/\./,$args{filter})));
4176 push @bindvars, ($args{filter},$args{filter});
4177 push @bindvars, ($tmp, $tmp);
4178 }
4179
4180 # Filtering on other fields
4181 foreach (qw(type distance weight port ttl description)) {
4182 if ($args{$_}) {
4183 $sql .= " AND $_ ~* ?";
4184 push @bindvars, $args{$_};
4185 }
4186 }
4187
4188 # whee! multisort means just passing comma-separated fields in sortby!
4189 my $newsort = '';
4190 foreach my $sf (split /,/, $args{sortby}) {
4191 $sf = "r.$sf";
4192 # sort on IP, correctly
4193 $sf =~ s/r\.val/inetlazy(r.val)/;
4194# hmm. do we really need to limit this?
4195# if $args{revrec} eq 'y' && $args{defrec} eq 'n';
4196 $sf =~ s/r\.type/t.alphaorder/; # subtly different from sorting on rectypes.name
4197 $newsort .= ",$sf";
4198 }
4199 $newsort =~ s/^,//;
4200##enhance: pass in ascending/descending sort per-field
4201 $sql .= " ORDER BY $newsort $args{sortorder}";
4202 # ensure consistent ordering by sorting on record_id too
4203 $sql .= ", record_id $args{sortorder}";
4204
4205 # Offset/pagination
4206 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
4207
4208 my @working;
4209 my $recsth = $dbh->prepare($sql);
4210 $recsth->execute(@bindvars);
4211 while (my $rec = $recsth->fetchrow_hashref) {
4212 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
4213 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
4214 $rec->{val} !~ /\.arpa$/ ) {
4215 # skip all reverse zone .arpa "hostnames" since they're already .arpa names.
4216##enhance: extend {showrev_arpa} eq 'record' to specify record types
4217 my $tmpip = new NetAddr::IP $rec->{val} if $rec->{val} =~ /^(?:[\d.\/]+|[a-fA-F0-9:\/]+)$/;
4218 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
4219 }
4220 push @working, $rec;
4221 }
4222 return \@working;
4223} # end getRecList()
4224
4225
4226## DNSDB::getRecCount()
4227# Return count of non-SOA records in zone (or default records in a group)
4228# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
4229# and optional filtering modifier
4230# Returns the count
4231sub getRecCount {
4232 my $self = shift;
4233 my $dbh = $self->{dbh};
4234
4235 my %args = @_;
4236
4237 $args{defrec} = 'n' if !$args{defrec};
4238 $args{revrec} = 'n' if !$args{revrec};
4239
4240 my @bindvars;
4241 my $sql = "SELECT count(*) FROM ".
4242 _rectable($args{defrec},$args{revrec}).
4243 " WHERE NOT type=$reverse_typemap{SOA}";
4244 if ($args{id}) {
4245 $sql .= " AND "._recparent($args{defrec},$args{revrec})." = ?";
4246 push @bindvars, $args{id};
4247 }
4248
4249 # Filtering on host/val (mainly normal record list)
4250 if ($args{filter}) {
4251 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
4252 my $tmp = join('.',reverse(split(/\./,$args{filter})));
4253 push @bindvars, ($args{filter},$args{filter});
4254 push @bindvars, ($tmp, $tmp);
4255 }
4256
4257 # Filtering on other fields
4258 foreach (qw(type distance weight port ttl description)) {
4259 if ($args{$_}) {
4260 $sql .= " AND $_ ~* ?";
4261 push @bindvars, $args{$_};
4262 }
4263 }
4264
4265 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
4266
4267 return $count;
4268
4269} # end getRecCount()
4270
4271
4272## DNSDB::addRec()
4273# Add a new record to a domain or a group's default records
4274# Takes a database handle, default/live flag, group/domain ID,
4275# host, type, value, and TTL
4276# Some types require additional detail: "distance" for MX and SRV,
4277# and weight/port for SRV
4278# Returns a status code and detail message in case of error
4279##fixme: pass a hash with the record data, not a series of separate values
4280sub addRec {
4281 $errstr = '';
4282 my $self = shift;
4283 my $dbh = $self->{dbh};
4284 my $defrec = shift;
4285 my $revrec = shift;
4286 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
4287 # domain_id for domain records)
4288
4289 my $host = shift;
4290 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
4291 my $val = shift;
4292 my $ttl = shift;
4293 my $location = shift;
4294 $location = '' if !$location;
4295
4296 my $expires = shift || '';
4297 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4298 $expires = 0 if $expires eq 'after';
4299 my $stamp = shift;
4300 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4301
4302 # extra safety net - apparently RPC can squeak this by. O_o
4303 return ('FAIL', "host must contain a value") if !$$host;
4304 return ('FAIL', "val must contain a value") if !$$val;
4305
4306 # Spaces are evil.
4307 $$host =~ s/^\s+//;
4308 $$host =~ s/\s+$//;
4309 if ($typemap{$$rectype} ne 'TXT') {
4310 # Leading or trailng spaces could be legit in TXT records.
4311 $$val =~ s/^\s+//;
4312 $$val =~ s/\s+$//;
4313 }
4314
4315 _caseclean($rectype, $host, $val, $defrec, $revrec) if $self->{lowercase};
4316
4317 # prep for validation
4318 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4319 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4320
4321 my $domid = 0;
4322 my $revid = 0;
4323
4324 my $retcode = 'OK'; # assume everything will go OK
4325 my $retmsg = '';
4326
4327 # do simple validation first
4328 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4329
4330 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
4331 my $dist = shift;
4332 my $weight = shift;
4333 my $port = shift;
4334
4335 my $fields;
4336 my @vallist;
4337
4338 # Call the validation sub for the type requested.
4339 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
4340 host => $host, rectype => $rectype, val => $val, addr => $addr,
4341 dist => \$dist, port => \$port, weight => \$weight,
4342 fields => \$fields, vallist => \@vallist);
4343
4344 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4345
4346 # Set up database fields and bind parameters
4347 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4348 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
4349
4350 if ($defrec eq 'n') {
4351 # locations are not for default records, silly coder!
4352 $fields .= ",location";
4353 push @vallist, $location;
4354 # timestamps are rare.
4355 if ($stamp) {
4356 $fields .= ",stamp,expires,stampactive";
4357 push @vallist, $stamp, $expires, 'y';
4358 } else {
4359 $fields .= ",stampactive";
4360 push @vallist, 'n';
4361 }
4362 }
4363
4364 # a little magic to get the right number of ? placeholders based on how many values we're providing
4365 my $vallen = '?'.(',?'x$#vallist);
4366
4367 # Put together the success log entry. We have to use this horrible kludge
4368 # because domain_id and rdns_id may or may not be present, and if they are,
4369 # they're not at a guaranteed consistent index in the array. wheee!
4370 my %logdata;
4371 my @ftmp = split /,/, $fields;
4372 for (my $i=0; $i <= $#vallist; $i++) {
4373 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4374 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4375 }
4376 $logdata{group_id} = $id if $defrec eq 'y';
4377 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4378 if $defrec eq 'n';
4379 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
4380 # Log reverse records to match the formal .arpa tree
4381 if ($revrec eq 'y') {
4382 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
4383 } else {
4384 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
4385 }
4386
4387 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4388 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
4389 if $typemap{$$rectype} eq 'SRV';
4390 $logdata{entry} .= "', TTL $ttl";
4391 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4392 $logdata{entry} .= ($expires ? ', expires at ' : ', valid after ').$stamp if $stamp;
4393
4394 # Allow transactions, and raise an exception on errors so we can catch it later.
4395 # Use local to make sure these get "reset" properly on exiting this block
4396 local $dbh->{AutoCommit} = 0;
4397 local $dbh->{RaiseError} = 1;
4398
4399 eval {
4400 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
4401 undef, @vallist);
4402 $self->_log(%logdata);
4403 $dbh->commit;
4404 };
4405 if ($@) {
4406 my $msg = $@;
4407 eval { $dbh->rollback; };
4408 if ($self->{log_failures}) {
4409 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
4410 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
4411 $self->_log(%logdata);
4412 $dbh->commit;
4413 }
4414 return ('FAIL',$msg);
4415 }
4416
4417 $resultstr = $logdata{entry};
4418 return ($retcode, $retmsg);
4419
4420} # end addRec()
4421
4422
4423## DNSDB::updateRec()
4424# Update a record
4425# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
4426# Returns a status code and message
4427sub updateRec {
4428 $errstr = '';
4429
4430 my $self = shift;
4431 my $dbh = $self->{dbh};
4432
4433 my $defrec = shift;
4434 my $revrec = shift;
4435 my $id = shift;
4436 my $parid = shift; # immediate parent entity that we're descending from to update the record
4437
4438 # all records have these
4439 my $host = shift;
4440 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
4441 my $rectype = shift;
4442 my $val = shift;
4443 my $ttl = shift;
4444 my $location = shift; # may be empty/null/undef depending on caller
4445 $location = '' if !$location;
4446
4447 my $expires = shift || '';
4448 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4449 $expires = 0 if $expires eq 'after';
4450 my $stamp = shift;
4451 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4452
4453 # just set it to an empty string; failures will be caught later.
4454 $$host = '' if !$$host;
4455
4456 # Spaces are evil.
4457 $$host =~ s/^\s+//;
4458 $$host =~ s/\s+$//;
4459 if ($typemap{$$rectype} ne 'TXT') {
4460 # Leading or trailng spaces could be legit in TXT records.
4461 $$val =~ s/^\s+//;
4462 $$val =~ s/\s+$//;
4463 }
4464
4465 _caseclean($rectype, $host, $val, $defrec, $revrec) if $self->{lowercase};
4466
4467 # prep for validation
4468 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4469 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4470
4471 my $domid = 0;
4472 my $revid = 0;
4473
4474 my $retcode = 'OK'; # assume everything will go OK
4475 my $retmsg = '';
4476
4477 # do simple validation first
4478 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4479
4480 # only MX and SRV will use these
4481 my $dist = shift || 0;
4482 my $weight = shift || 0;
4483 my $port = shift || 0;
4484
4485 my $fields;
4486 my @vallist;
4487
4488 # get old record data so we have the right parent ID
4489 # and for logging (eventually)
4490 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4491
4492 # Call the validation sub for the type requested.
4493 # Note the ID to pass here is the *parent*, not the record
4494 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4495 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4496 host => $host, rectype => $rectype, val => $val, addr => $addr,
4497 dist => \$dist, port => \$port, weight => \$weight,
4498 fields => \$fields, vallist => \@vallist,
4499 update => $id);
4500
4501 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4502
4503 # Set up database fields and bind parameters. Note only the optional fields
4504 # (distance, weight, port, secondary parent ID) are added in the validation call above
4505 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4506 push @vallist, ($$host,$$rectype,$$val,$ttl,
4507 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4508
4509 if ($defrec eq 'n') {
4510 # locations are not for default records, silly coder!
4511 $fields .= ",location";
4512 push @vallist, $location;
4513 # timestamps are rare.
4514 if ($stamp) {
4515 $fields .= ",stamp,expires,stampactive";
4516 push @vallist, $stamp, $expires, 'y';
4517 } else {
4518 $fields .= ",stampactive";
4519 push @vallist, 'n';
4520 }
4521 }
4522
4523 # hack hack PTHUI
4524 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4525 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4526 # needed for crossover types that got coerced down to "standard" types due to data changes
4527 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4528 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4529 if ($$rectype == $reverse_typemap{PTR}) {
4530 $fields .= ",domain_id";
4531 push @vallist, 0;
4532 }
4533 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4534 $fields .= ",rdns_id";
4535 push @vallist, 0;
4536 }
4537 }
4538 # fix fat-finger-originated record type changes
4539 if ($$rectype == 65285) { # delegation
4540 $fields .= ",rdns_id" if $revrec eq 'n';
4541 $fields .= ",domain_id" if $revrec eq 'y';
4542 push @vallist, 0;
4543 }
4544 # ... and now make sure we *do* associate a record with the "calling" parent
4545 if ($defrec eq 'n') {
4546 $domid = $parid if $revrec eq 'n';
4547 $revid = $parid if $revrec eq 'y';
4548 }
4549
4550 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4551 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4552 # will be maintained (due to "not-in-zone" validation changes)
4553 my %logdata;
4554 $logdata{domain_id} = $domid;
4555 $logdata{rdns_id} = $revid;
4556 my @ftmp = split /,/, $fields;
4557 for (my $i=0; $i <= $#vallist; $i++) {
4558 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4559 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4560 }
4561 $logdata{group_id} = $parid if $defrec eq 'y';
4562 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4563 if $defrec eq 'n';
4564 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4565 # Log reverse records "naturally", since they're stored, um, unnaturally.
4566 if ($revrec eq 'y') {
4567 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4568 } else {
4569 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4570 }
4571 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4572 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4573 if $typemap{$oldrec->{type}} eq 'SRV';
4574 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4575 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4576 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4577 if $oldrec->{stampactive};
4578 $logdata{entry} .= "\nto\n";
4579 # Log reverse records "naturally", since they're stored, um, unnaturally.
4580 if ($revrec eq 'y') {
4581 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4582 } else {
4583 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4584 }
4585 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4586 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4587 $logdata{entry} .= "', TTL $ttl";
4588 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4589 $logdata{entry} .= ($expires ? ', expires at ' : ', valid after ').$stamp if $stamp;
4590
4591 local $dbh->{AutoCommit} = 0;
4592 local $dbh->{RaiseError} = 1;
4593
4594 # Fiddle the field list into something suitable for updates
4595 $fields =~ s/,/=?,/g;
4596 $fields .= "=?";
4597
4598 eval {
4599 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4600 $self->_log(%logdata);
4601 $dbh->commit;
4602 };
4603 if ($@) {
4604 my $msg = $@;
4605 eval { $dbh->rollback; };
4606 if ($self->{log_failures}) {
4607 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4608 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4609 $self->_log(%logdata);
4610 $dbh->commit;
4611 }
4612 return ('FAIL', $msg);
4613 }
4614
4615 $resultstr = $logdata{entry};
4616 return ($retcode, $retmsg);
4617} # end updateRec()
4618
4619
4620## DNSDB::downconvert()
4621# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4622# to a compatible component type. Only a handful of operations are valid, anything
4623# else is a null-op.
4624# Takes the record ID and the new type. Returns boolean.
4625sub downconvert {
4626 my $self = shift;
4627 my $dbh = $self->{dbh};
4628 my $recid = shift;
4629 my $newtype = shift;
4630
4631 # also, only work on live records; little to no value trying to do this on default records.
4632 my $rec = $self->getRecLine('n', 'y', $recid);
4633
4634 # hm?
4635 #return 1 if !$rec;
4636
4637 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4638 return 1 if $rec->{type} == 65282; # Nowhere to go
4639
4640 my $delpar;
4641 my @sqlargs;
4642 if ($rec->{type} == 65280) {
4643 return 1 if $newtype != 1 && $newtype != 12;
4644 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4645 push @sqlargs, 0, $newtype, $recid;
4646 } elsif ($rec->{type} == 65281) {
4647 return 1 if $newtype != 28 && $newtype != 12;
4648 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4649 push @sqlargs, 0, $newtype, $recid;
4650 } elsif ($rec->{type} == 65283) {
4651 return 1 if $newtype != 65282;
4652 $delpar = 'rdns_id';
4653 } elsif ($rec->{type} == 65284) {
4654 return 1 if $newtype != 65282;
4655 $delpar = 'rdns_id';
4656 } else {
4657 # Your llama is on fire.
4658 }
4659
4660 local $dbh->{AutoCommit} = 0;
4661 local $dbh->{RaiseError} = 1;
4662
4663 eval {
4664 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4665 $self->_log(domain_id => $rec->{domain_id}, rdns_id => $rec->{rdns_id},
4666 group_id => $self->parentID(id => $rec->{rdns_id}, type => 'revzone', revrec => 'y'),
4667 entry => "'$rec->{host} $typemap{$rec->{type}} $rec->{val}' downconverted to ".
4668 "'$rec->{host} $typemap{$newtype} $rec->{val}'");
4669 $dbh->commit;
4670 };
4671 if ($@) {
4672 $errstr = $@;
4673 eval { $dbh->rollback; };
4674 return 0;
4675 }
4676 return 1;
4677} # end downconvert()
4678
4679
4680## DNSDB::delRec()
4681# Delete a record.
4682# Takes a default/live flag, forward/reverse flag, and the ID of the record to delete.
4683sub delRec {
4684 $errstr = '';
4685 my $self = shift;
4686 my $dbh = $self->{dbh};
4687 my $defrec = shift;
4688 my $revrec = shift;
4689 my $id = shift;
4690
4691 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4692
4693 # Allow transactions, and raise an exception on errors so we can catch it later.
4694 # Use local to make sure these get "reset" properly on exiting this block
4695 local $dbh->{AutoCommit} = 0;
4696 local $dbh->{RaiseError} = 1;
4697
4698 # Put together the log entry
4699 my %logdata;
4700 $logdata{domain_id} = $oldrec->{domain_id};
4701 $logdata{rdns_id} = $oldrec->{rdns_id};
4702 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4703 $logdata{group_id} = $self->parentID(id => ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id}),
4704 type => 'domain', revrec => $revrec)
4705 if $defrec eq 'n';
4706 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4707 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4708 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4709 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4710 if $typemap{$oldrec->{type}} eq 'SRV';
4711 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4712 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4713
4714 eval {
4715 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4716 $self->_log(%logdata);
4717 $dbh->commit;
4718 };
4719 if ($@) {
4720 my $msg = $@;
4721 eval { $dbh->rollback; };
4722 if ($self->{log_failures}) {
4723 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4724 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4725 $self->_log(%logdata);
4726 $dbh->commit;
4727 }
4728 return ('FAIL', $msg);
4729 }
4730
4731 return ('OK',$logdata{entry});
4732} # end delRec()
4733
4734
4735## DNSDB::getLogCount()
4736# Get a count of log entries
4737# Takes a database handle and a hash containing at least:
4738# - Entity ID and entity type as the primary log "slice"
4739sub getLogCount {
4740 my $self = shift;
4741 my $dbh = $self->{dbh};
4742
4743 my %args = @_;
4744
4745 my @filterargs;
4746##fixme: which fields do we want to filter on?
4747# push @filterargs,
4748
4749 $errstr = 'Missing primary parent ID and/or type';
4750 # fail early if we don't have a "prime" ID to look for log entries for
4751 return if !$args{id};
4752
4753 # or if the prime id type is missing or invalid
4754 return if !$args{logtype};
4755 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4756 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4757 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4758
4759 my $sql = "SELECT count(*) FROM log ".
4760 "WHERE $id_col{$args{logtype}}=?".
4761 ($args{filter} ? " AND entry ~* ?" : '');
4762 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4763 $errstr = $dbh->errstr if !$count;
4764 return $count;
4765} # end getLogCount()
4766
4767
4768## DNSDB::getLogEntries()
4769# Get a list of log entries
4770# Takes arguments as with getLogCount() above, plus optional:
4771# - sort field
4772# - sort order
4773# - offset for pagination
4774sub getLogEntries {
4775 my $self = shift;
4776 my $dbh = $self->{dbh};
4777
4778 my %args = @_;
4779
4780 my @filterargs;
4781
4782 # fail early if we don't have a "prime" ID to look for log entries for
4783 return if !$args{id};
4784
4785 # or if the prime id type is missing or invalid
4786 return if !$args{logtype};
4787 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4788 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4789 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4790
4791 # Sorting defaults
4792 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4793 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4794 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4795
4796 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4797 $args{sortby} = $sortmap{$args{sortby}};
4798
4799 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4800 "date_trunc('second',stamp) AS logtime ".
4801 "FROM log ".
4802 "WHERE $id_col{$args{logtype}}=?".
4803 ($args{filter} ? " AND entry ~* ?" : '').
4804 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4805 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4806 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4807 $errstr = $dbh->errstr if !$loglist;
4808 return $loglist;
4809} # end getLogEntries()
4810
4811
4812## DNSDB::getRevPattern()
4813# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4814sub getRevPattern {
4815 my $self = shift;
4816 my $dbh = $self->{dbh};
4817 my $cidr = shift;
4818 my $group = shift || 1; # just in case
4819
4820 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4821 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?",
4822 undef, ($cidr) );
4823
4824##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4825 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4826 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) >>= ? ".
4827 "ORDER BY inetlazy(val) DESC LIMIT 1", undef, ($revid, $cidr) );
4828 return $revpatt;
4829} # end getRevPattern()
4830
4831
4832## DNSDB::getRevSet()
4833# Return the unique per-IP reverse hostnames, if any, for the passed
4834# CIDR address (may be a netblock or an IP)
4835sub getRevSet {
4836 my $self = shift;
4837 my $dbh = $self->{dbh};
4838 my $cidr = shift;
4839 my $group = shift || 1; # just in case
4840
4841 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4842 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?",
4843 undef, ($cidr) );
4844
4845 $cidr = new NetAddr::IP $cidr;
4846 if ($cidr->num > 256) { # should also catch v6!
4847 # Even reverse entries for a v4 /24 of IPs is a bit much. I don't expect
4848 # there to be a sane reason to retrive more than a /27 at once, really.
4849 # v6 is going to be hairy no matter how you slice it.
4850 $errstr = "Reverse hostname detail range too large";
4851 return;
4852 }
4853
4854 my $sth = $dbh->prepare("SELECT val, host FROM records ".
4855 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) = ?");
4856
4857 my @ret;
4858 foreach my $ip (@{$cidr->splitref()}) {
4859 $sth->execute($revid, $ip);
4860 my @data = $sth->fetchrow_array();
4861 my %row;
4862 if (@data) {
4863 $row{r_ip} = $data[0];
4864 $row{iphost} = $data[1];
4865 } else {
4866 $row{r_ip} = $ip->addr;
4867 $row{iphost} = '';
4868 }
4869 push @ret, \%row;
4870 }
4871
4872 return \@ret;
4873} # end getRevSet()
4874
4875
4876## DNSDB::getTypelist()
4877# Get a list of record types for various UI dropdowns
4878# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4879# Returns an arrayref to list of hashrefs perfect for HTML::Template
4880sub getTypelist {
4881 my $self = shift;
4882 my $dbh = $self->{dbh};
4883 my $recgroup = shift;
4884 my $type = shift || $reverse_typemap{A};
4885
4886 # also accepting $webvar{revrec}!
4887 $recgroup = 'f' if $recgroup eq 'n';
4888 $recgroup = 'r' if $recgroup eq 'y';
4889
4890 my $sql = "SELECT val,name FROM rectypes WHERE ";
4891 if ($recgroup eq 'r') {
4892 # reverse zone types
4893 $sql .= "stdflag=2 OR stdflag=3";
4894 } elsif ($recgroup eq 'l') {
4895 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4896 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4897 } else {
4898 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4899 $sql .= "stdflag=1 OR stdflag=2";
4900 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4901 }
4902 $sql .= " ORDER BY listorder";
4903
4904 my $sth = $dbh->prepare($sql);
4905 $sth->execute;
4906 my @typelist;
4907 # track whether the passed type is in the list at all. allows you to edit a record
4908 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4909 # without changing its type (accidentally or otherwise)
4910 my $selflag = 0;
4911 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4912 my %row = ( recval => $rval, recname => $rname );
4913 if ($rval == $type) {
4914 $row{tselect} = 1;
4915 $selflag = 1;
4916 }
4917 push @typelist, \%row;
4918 }
4919
4920 # add the passed type if it wasn't in the list
4921 if (!$selflag) {
4922 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4923 push @typelist, \%row;
4924 }
4925
4926 # Add SOA on lookups since it's not listed in other dropdowns.
4927 if ($recgroup eq 'l') {
4928 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4929 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4930 push @typelist, \%row;
4931 }
4932
4933 return \@typelist;
4934} # end getTypelist()
4935
4936
4937## DNSDB::parentID()
4938# Get ID of entity that is nearest parent to requested id
4939# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4940# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4941# Returns the ID or undef on failure
4942sub parentID {
4943 my $self = shift;
4944 my $dbh = $self->{dbh};
4945
4946 my %args = @_;
4947
4948 # clean up defrec and revrec. default to live record, forward zone
4949 $args{defrec} = 'n' if !$args{defrec};
4950 $args{revrec} = 'n' if !$args{revrec};
4951
4952 # clean up the parent-type. Set it to group if not set
4953 $args{partype} = 'group' if !$args{partype};
4954
4955 # allow callers to be lazy with type
4956 $args{type} = 'revzone' if $args{type} eq 'domain' && $args{revrec} eq 'y';
4957
4958 if ($par_type{$args{partype}} eq 'domain' || $par_type{$args{partype}} eq 'revzone') {
4959 # only live records can have a domain/zone parent
4960 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4961 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4962 " FROM records WHERE record_id = ?",
4963 undef, ($args{id}) ) or return;
4964 return $result;
4965 } else {
4966 # snag some arguments that will either fall through or be overwritten to save some code duplication
4967 my $tmpid = $args{id};
4968 my $type = $args{type};
4969 if ($type eq 'record' && $args{defrec} eq 'n') {
4970 # Live records go through the records table first.
4971 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4972 " FROM records WHERE record_id = ?",
4973 undef, ($args{id}) ) or return;
4974 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4975 }
4976 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4977 undef, ($tmpid) );
4978 return $result;
4979 }
4980# should be impossible to get here with even remotely sane arguments
4981 return;
4982} # end parentID()
4983
4984
4985## DNSDB::isParent()
4986# Returns true if $id1 is a parent of $id2, false otherwise
4987sub isParent {
4988 my $self = shift;
4989 my $dbh = $self->{dbh};
4990 my $id1 = shift;
4991 my $type1 = shift;
4992 my $id2 = shift;
4993 my $type2 = shift;
4994##todo: immediate, secondary, full (default)
4995
4996 # Return false on invalid types
4997 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4998 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4999
5000 # Return false on impossible relations
5001 return 0 if $type1 eq 'record'; # nothing may be a child of a record
5002 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
5003 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
5004 return 0 if $type1 eq 'user'; # nothing may be child of a user
5005 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
5006 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
5007
5008 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
5009 # case would be the UI creating a new <thing>, and so we don't have an ID for
5010 # <thing> to look up yet. in that case the UI should check the parent as well.
5011 return 0 if $id1 == 0; # nothing can have a parent id of 0
5012 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
5013
5014 # group 1 is the ultimate root parent
5015 return 1 if $type1 eq 'group' && $id1 == 1;
5016
5017 # groups are always (a) parent of themselves
5018 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
5019
5020 my $id = $id2;
5021 my $type = $type2;
5022 my $foundparent = 0;
5023
5024 # Records are the only entity with two possible parents. We need to split the parent checks on
5025 # domain/rdns.
5026 if ($type eq 'record') {
5027 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
5028 undef, ($id));
5029 # check immediate parent against request
5030 return 1 if $type1 eq 'domain' && $id1 == $dom;
5031 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
5032 # if request is group, check *both* parents. Only check if the parent is nonzero though.
5033 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
5034 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
5035 # exit here since we've executed the loop below by proxy in the above recursive calls.
5036 return 0;
5037 }
5038
5039# almost the same loop as getParents() above
5040 my $limiter = 0;
5041 while (1) {
5042 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
5043 my $result = $dbh->selectrow_hashref($sql,
5044 undef, ($id) );
5045 if (!$result) {
5046 $limiter++;
5047##fixme: how often will this happen on a live site? fail at max limiter <n>?
5048# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
5049 warn "no results looking for $sql with id $id (depth $limiter)\n";
5050 last;
5051 }
5052 if ($result && $result->{$par_col{$type}} == $id1) {
5053 $foundparent = 1;
5054 last;
5055 } else {
5056##fixme: do we care about trying to return a "no such record/domain/user/group" error?
5057# should be impossible to create an inconsistent DB just with API calls.
5058 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
5059 }
5060 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
5061 last if $result->{$par_col{$type}} == 1;
5062 $id = $result->{$par_col{$type}};
5063 $type = $par_type{$type};
5064 }
5065
5066 return $foundparent;
5067} # end isParent()
5068
5069
5070## DNSDB::zoneStatus()
5071# Returns and optionally sets a zone's status
5072# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
5073# Returns status, or undef on errors.
5074sub zoneStatus {
5075 my $self = shift;
5076 my $dbh = $self->{dbh};
5077 my $id = shift;
5078 my $revrec = shift;
5079 my $newstatus = shift || 'mu';
5080
5081 return undef if $id !~ /^\d+$/;
5082
5083 # Allow transactions, and raise an exception on errors so we can catch it later.
5084 # Use local to make sure these get "reset" properly on exiting this block
5085 local $dbh->{AutoCommit} = 0;
5086 local $dbh->{RaiseError} = 1;
5087
5088 if ($newstatus ne 'mu') {
5089 # ooo, fun! let's see what we were passed for status
5090 eval {
5091 $newstatus = 0 if $newstatus eq 'domoff';
5092 $newstatus = 1 if $newstatus eq 'domon';
5093 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
5094 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
5095
5096##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
5097 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
5098 " state to ".($newstatus ? 'active' : 'inactive');
5099
5100 my %loghash;
5101 $loghash{domain_id} = $id if $revrec eq 'n';
5102 $loghash{rdns_id} = $id if $revrec eq 'y';
5103 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
5104 $loghash{entry} = $resultstr;
5105 $self->_log(%loghash);
5106
5107 $dbh->commit;
5108 };
5109 if ($@) {
5110 my $msg = $@;
5111 eval { $dbh->rollback; };
5112 $resultstr = '';
5113 $errstr = $msg;
5114 return;
5115 }
5116 }
5117
5118 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
5119 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
5120 undef, ($id) );
5121 return $status;
5122} # end zoneStatus()
5123
5124
5125## DNSDB::getZonesByCIDR()
5126# Get a list of zone names and IDs that records for a passed CIDR block are within.
5127sub getZonesByCIDR {
5128 my $self = shift;
5129 my $dbh = $self->{dbh};
5130 my %args = @_;
5131
5132 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
5133 { Slice => {} }, ($args{cidr}, $args{cidr}) );
5134 return $result;
5135} # end getZonesByCIDR()
5136
5137
5138## DNSDB::importAXFR
5139# Import a domain via AXFR
5140# Takes AXFR host, domain to transfer, group to put the domain in,
5141# and an optional hash containing:
5142# status - active/inactive state flag (defaults to active)
5143# rwsoa - overwrite-SOA flag (defaults to off)
5144# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
5145# merge - flag to automerge A or AAAA records with matching PTR records
5146# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
5147# if status is OK, but WARN includes conditions that are not fatal but should
5148# really be reported.
5149sub importAXFR {
5150 my $self = shift;
5151 my $dbh = $self->{dbh};
5152 my $ifrom_in = shift;
5153 my $zone = shift;
5154 my $group = shift;
5155
5156 my %args = @_;
5157
5158##fixme: add mode to delete&replace, merge+overwrite, merge new?
5159
5160 $args{status} = (defined($args{status}) ? $args{status} : 0);
5161 $args{status} = 1 if $args{status} eq 'on';
5162
5163 my $nrecs = 0;
5164 my $soaflag = 0;
5165 my $nsflag = 0;
5166 my $warnmsg = '';
5167 my $ifrom;
5168
5169 my $rev = 'n';
5170 my $code = 'OK';
5171 my $msg = 'foobar?';
5172
5173 # choke on possible bad setting in ifrom
5174 # IPv4 and v6, and valid hostnames!
5175 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
5176 return ('FAIL', "Bad AXFR source host $ifrom")
5177 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
5178
5179 my $errmsg;
5180
5181 my $zone_id;
5182 my $domain_id = 0;
5183 my $rdns_id = 0;
5184 my $cidr;
5185
5186# magic happens! detect if we're importing a domain or a reverse zone
5187# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
5188# or what the formal .arpa zone is (if we got a CIDR netblock)
5189# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
5190
5191 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
5192 # we seem to have a reverse zone
5193 $rev = 'y';
5194
5195 if ($zone =~ /\.arpa\.?$/) {
5196 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
5197 ($code,$msg) = _zone2cidr($zone);
5198 return ($code, $msg) if $code eq 'FAIL';
5199 $cidr = $msg;
5200 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
5201 # v4 revzone, CIDR netblock
5202 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5203 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
5204 } elsif ($zone =~ /^[\d.]+$/) {
5205 # v4 revzone, leading-octet format
5206 my $mask = 32;
5207 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
5208 $zone .= '.0';
5209 $mask -= 8;
5210 }
5211 $zone .= "/$mask";
5212 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5213 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
5214 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
5215 # v6 revzone, CIDR netblock
5216 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5217 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
5218 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
5219 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
5220 # v6 revzone, leading-group format
5221 $zone =~ s/::$//;
5222 my $mask = 128;
5223 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
5224 $zone .= ":0";
5225 $mask -= 16;
5226 }
5227 $zone .= "/$mask";
5228 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
5229 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
5230 } else {
5231 # there is. no. else!
5232 return ('FAIL', "Unknown zone name format '$zone'");
5233 }
5234
5235 # several places this can be triggered from; better to do it once.
5236 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
5237
5238 # quick check to start to see if we've already got one
5239
5240 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
5241 undef, ("$cidr"));
5242 $rdns_id = $zone_id;
5243 } else {
5244 # default to domain
5245 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
5246 undef, ($zone));
5247 $domain_id = $zone_id;
5248 }
5249
5250 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
5251
5252 # little local utility sub to swap $val and $host for revzone records.
5253 sub _revswap {
5254 my $rechost = shift;
5255 my $recdata = shift;
5256
5257 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
5258 $rechost =~ s/\.in-addr\.arpa\.?$//;
5259 $rechost = join '.', reverse split /\./, $rechost;
5260 } else {
5261 $rechost =~ s/\.ip6\.arpa\.?$//;
5262 my @nibs = reverse split /\./, $rechost;
5263 $rechost = '';
5264 my $nc;
5265 foreach (@nibs) {
5266# # fail on multicharacter nibbles; it's syntactically valid but no standard lookup
5267# # will ever reach it, because it doesn't directly represent a real IP address.
5268# return ('FAIL', "Invalid reverse v6 entry") if $_ !~ /^.$/;
5269 $rechost.= $_;
5270 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
5271 }
5272 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
5273##fixme: there's a case that ends up with a partial entry here:
5274# ip:add:re:ss::
5275# can't reproduce after letting it sit overnight after discovery. :(
5276#print "$rechost\n";
5277 # canonicalize with NetAddr::IP
5278 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
5279 }
5280 return ($recdata,$rechost)
5281 }
5282
5283
5284 # Allow transactions, and raise an exception on errors so we can catch it later.
5285 # Use local to make sure these get "reset" properly on exiting this block
5286 local $dbh->{AutoCommit} = 0;
5287 local $dbh->{RaiseError} = 1;
5288
5289 my $sth;
5290 eval {
5291
5292 if ($rev eq 'n') {
5293##fixme: serial
5294 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
5295 ($zone, $group, $args{status}) );
5296 # get domain id so we can do the records
5297 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
5298 $domain_id = $zone_id;
5299 $self->_log(group_id => $group, domain_id => $domain_id,
5300 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
5301 } else {
5302##fixme: serial
5303 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
5304 ($cidr,$group,$args{status}) );
5305 # get revzone id so we can do the records
5306 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
5307 $rdns_id = $zone_id;
5308 $self->_log(group_id => $group, rdns_id => $rdns_id,
5309 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
5310 }
5311
5312## bizarre DBI<->Net::DNS interaction bug:
5313## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
5314## fixed, apparently I was doing *something* odd, but not certain what it was that
5315## caused a commit instead of barfing
5316
5317 my $res = Net::DNS::Resolver->new;
5318 $res->nameservers($ifrom);
5319 $res->axfr_start($zone)
5320 or die "Couldn't begin AXFR\n";
5321
5322 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
5323 " VALUES (?,?,?,?,?,?,?,?,?)");
5324
5325 # Stash info about sub-octet v4 revzones here so we don't have
5326 # to store the CNAMEs used to delegate a suboctet zone
5327 # $suboct{zone}{ns}[] -> array of nameservers
5328 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
5329## commented pending actual use of this data. for now, we'll just
5330## auto-(re)create the CNAMEs in revzones on export
5331# my %suboct;
5332
5333 while (my $rr = $res->axfr_next()) {
5334
5335 # Discard out-of-zone records. After trying for a while to replicate this with
5336 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
5337 # in the AXFR data in the first place, and possibly only older versions at that...
5338 # so it can't be reasonably tested. Yay Microsoft.
5339 if ($rr->name !~ /$zone$/i) {
5340 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
5341 }
5342
5343 my $val;
5344 my $distance = 0;
5345 my $weight = 0;
5346 my $port = 0;
5347 my $logfrag = '';
5348
5349 # Collect some record parts
5350 my $type = $rr->type;
5351 my $host = $rr->name;
5352 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
5353
5354 # Info flags for SOA and NS records
5355 $soaflag = 1 if $type eq 'SOA';
5356 $nsflag = 1 if $type eq 'NS';
5357
5358# "Primary" types:
5359# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
5360# maybe KEY
5361
5362# BIND supports:
5363# [standard]
5364# A AAAA CNAME MX NS PTR SOA TXT
5365# [variously experimental, obsolete, or obscure]
5366# 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
5367# ... if one can ever find the right magic to format them correctly
5368
5369# Net::DNS supports:
5370# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
5371# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
5372# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
5373
5374# nasty big ugly case-like thing here, since we have to do *some* different
5375# processing depending on the record. le sigh.
5376
5377# do the initial processing as if the record was in a forward zone. If we're
5378# doing a revzone, we can flip $host and $val as needed, once, after this
5379# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
5380
5381##fixme: what record types other than TXT can/will have >255-byte payloads?
5382
5383 if ($type eq 'A') {
5384 $val = $rr->address;
5385 } elsif ($type eq 'NS') {
5386# hmm. should we warn here if subdomain NS'es are left alone? OTOH, those should rarely be rewritten anyway.
5387 next if ($args{rwns} && ($host eq $zone));
5388 $val = $rr->nsdname;
5389 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: NS records may not be bare IP addresses\n"
5390 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5391 $nsflag = 1;
5392 } elsif ($type eq 'CNAME') {
5393 $val = $rr->cname;
5394 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: CNAME records may not be bare IP addresses\n"
5395 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5396 } elsif ($type eq 'SOA') {
5397 next if $args{rwsoa};
5398 $host = $rr->rname.":".$rr->mname;
5399 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
5400 $soaflag = 1;
5401 } elsif ($type eq 'PTR') {
5402 $val = $rr->ptrdname;
5403 } elsif ($type eq 'MX') {
5404 $val = $rr->exchange;
5405 $distance = $rr->preference;
5406 } elsif ($type eq 'TXT') {
5407##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
5408## but don't really seem enthusiastic about it.
5409#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
5410# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
5411# char_str_list returns a list of the individual string fragments in the record
5412# txtdata returns the more useful all-in-one form (since we want to push such protocol
5413# details as far down the stack as we can)
5414# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
5415 $val = $rr->txtdata;
5416 } elsif ($type eq 'SPF') {
5417##fixme: and the same caveat here, since it is apparently a clone of ::TXT
5418 $val = $rr->txtdata;
5419 } elsif ($type eq 'AAAA') {
5420 $val = $rr->address;
5421 } elsif ($type eq 'SRV') {
5422 $val = $rr->target;
5423 $distance = $rr->priority;
5424 $weight = $rr->weight;
5425 $port = $rr->port;
5426 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: SRV records may not be bare IP addresses\n"
5427 if $val =~ /^(?:(?:\d+\.){3}\d+|[a-fA-F0-9:]+)$/;
5428 } elsif ($type eq 'KEY') {
5429 # we don't actually know what to do with these...
5430 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
5431 } else {
5432 $val = $rr->rdatastr;
5433 # Finding a different record type is not fatal.... just problematic.
5434 # We may not be able to export it correctly.
5435 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
5436 }
5437
5438 if ($rev eq 'y' && $type ne 'SOA') {
5439 # up to this point we haven't meddled with the record's hostname part or rdata part.
5440 # for reverse records, (except SOA) we must swap the two.
5441 $host = $val;
5442 $val = $rr->name;
5443 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
5444 if ($tmpcode eq 'FAIL') {
5445 # $val did not have a valid IP value. It's syntactically valid but WTF?
5446 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
5447 } else {
5448 # $val has a valid IP value. See if we can store it as that IP value.
5449 # Note we're enumerating do-nothing cases for clarity.
5450##enhance: this is where we will implement the more subtle variations on #53
5451 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
5452 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
5453 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5454 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
5455 # case: PTR with netblock value, not IP value
5456 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
5457 # stored/displayed as dead:beef::/32 PTR foo
5458
5459## hrm. WTF is this case for, anyway? Needs testing to check the logic.
5460# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
5461# ($tmpmsg->masklen != $cidr->masklen)
5462# ) {
5463# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
5464# # and the mask does not match the zone
5465#$warnmsg .= "WTF case: $host $type $val\n";
5466# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5467
5468 } else {
5469 $val = $tmpmsg;
5470 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5471 #$val =~ s/:0$//g;
5472 }
5473 }
5474 # magic? convert * records to PTR template (not sure this actually makes sense)
5475 #if ($val =~ /^\*/) {
5476 # $val =~ s/\*\.//;
5477 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
5478 # if ($tmpcode eq 'FAIL') {
5479 # $val = "*.$val";
5480 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
5481 # } else {
5482 # $type = 'PTR template';
5483 # $val = $tmpmsg; if $tmp
5484 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5485 # }
5486 #}
5487 } # non-SOA revrec $host/$val inversion and munging
5488
5489 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5490
5491 if ($args{merge}) {
5492 if ($rev eq 'n') {
5493 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5494 my $etype;
5495 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5496 "WHERE host=? AND val=? AND type=12",
5497 undef, ($host, $val) );
5498 if ($erid) {
5499 if ($type eq 'A') { # PTR -> A+PTR
5500 $etype = 65280;
5501 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5502 }
5503 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5504 $etype = 65281;
5505 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5506 }
5507 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5508 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5509 ($domain_id, $ettl, $etype, $erid));
5510 $nrecs++;
5511 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5512 next; # while axfr_next
5513 }
5514 } # $rev eq 'n'
5515 else {
5516 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5517 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5518 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5519 undef, ($host, $val) );
5520 if ($erid) {
5521 if ($etype == 1) { # A -> A+PTR
5522 $etype = 65280;
5523 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5524 }
5525 if ($etype == 28) { # AAAA -> AAAA+PTR
5526 $etype = 65281;
5527 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5528 }
5529 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5530 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5531 ($rdns_id, $ettl, $etype, $erid));
5532 $nrecs++;
5533 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5534 next; # while axfr_next
5535 }
5536 } # $rev eq 'y'
5537 } # if $args{merge}
5538
5539 # Insert the new record
5540 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5541 $distance, $weight, $port, $ttl);
5542
5543 $nrecs++;
5544
5545 if ($type eq 'SOA') {
5546 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5547 my @tmp1 = split /:/, $host;
5548 my @tmp2 = split /:/, $val;
5549 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5550 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5551 } elsif ($logfrag) {
5552 # special case for log entries we need to meddle with a little.
5553 $logentry .= $logfrag;
5554 } else {
5555 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5556 $logentry .= " [distance $distance]" if $type eq 'MX';
5557 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5558 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5559 }
5560 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5561
5562 } # while axfr_next
5563
5564# Detect and handle delegated subzones
5565# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5566#foreach (keys %suboct) {
5567# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5568# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5569#}
5570
5571 # Overwrite SOA record
5572 if ($args{rwsoa}) {
5573 $soaflag = 1;
5574 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5575 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5576 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5577 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5578 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5579 if ($rev eq 'n') {
5580 $host =~ s/DOMAIN/$zone/g;
5581 $val =~ s/DOMAIN/$zone/g; # arguably useless
5582 } else {
5583 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5584 }
5585 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5586 }
5587 }
5588
5589 # Add standard NS records. The old one(s) should have been skipped by this point.
5590 if ($args{rwns}) {
5591 $nsflag = 1;
5592 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5593 my $sthputns = $dbh->prepare("INSERT INTO records (".
5594 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5595 $sthgetns->execute($group,$reverse_typemap{NS});
5596 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5597 if ($rev eq 'n') {
5598 $host =~ s/DOMAIN/$zone/g;
5599 $val =~ s/DOMAIN/$zone/g; #hmm.
5600 } else {
5601 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5602 $val =~ s/ZONE/$cidr/g;
5603 }
5604 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5605 }
5606 }
5607
5608 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5609 die "Bad zone: No SOA record!\n" if !$soaflag;
5610 die "Bad zone: No NS records!\n" if !$nsflag;
5611
5612 $dbh->commit;
5613
5614 };
5615
5616 if ($@) {
5617 my $msg = $@;
5618 eval { $dbh->rollback; };
5619 return ('FAIL',$msg." $warnmsg");
5620 } else {
5621 return ('WARN', $warnmsg) if $warnmsg;
5622 return ('OK',"Imported OK");
5623 }
5624
5625 # it should be impossible to get here.
5626 return ('WARN',"OOOK!");
5627} # end importAXFR()
5628
5629
5630## DNSDB::importBIND()
5631sub importBIND {
5632} # end importBIND()
5633
5634
5635## DNSDB::import_tinydns()
5636sub import_tinydns {
5637} # end import_tinydns()
5638
5639
5640## DNSDB::export()
5641# Export the DNS database, or a part of it
5642# Takes a string indicating the export type, plus optional arguments depending on type
5643# Writes zone data to targets as appropriate for type
5644sub export {
5645 my $self = shift;
5646 my $target = shift;
5647
5648 if ($target eq 'tiny') {
5649 eval {
5650 $self->__export_tiny(@_);
5651 };
5652 if ($@) {
5653 $errstr = $@;
5654 return undef;
5655 }
5656 }
5657# elsif ($target eq 'foo') {
5658# __export_foo(@_);
5659#}
5660# etc
5661
5662 return 1;
5663} # end export()
5664
5665
5666## DNSDB::__export_tiny
5667# Internal sub to implement tinyDNS (compatible) export
5668# Takes filehandle to write export to, optional argument(s)
5669# to determine which data gets exported
5670sub __export_tiny {
5671 my $self = shift;
5672 my $dbh = $self->{dbh};
5673 my $datafile = shift;
5674 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5675
5676##fixme: slurp up further options to specify particular zone(s) to export
5677
5678##fixme: fail if $datafile isn't an open, writable file
5679
5680 # Error check - does the cache dir exist, if we're using one?
5681 if ($self->{usecache}) {
5682 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5683 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5684 die "$self->{exportcache} must be both readable and writable\n"
5685 if !-r $self->{exportcache} || !-w $self->{exportcache};
5686 }
5687
5688 # easy case - export all evarything
5689 # not-so-easy case - export item(s) specified
5690 # todo: figure out what kind of list we use to export items
5691
5692# raw packet in unknown format: first byte indicates length
5693# of remaining data, allows up to 255 raw bytes
5694
5695 # note: the only I/O failures we seem to be able to actually catch
5696 # here are "closed filehandle" errors. we're probably not writing
5697 # enough data at this point to properly trigger an "out of space"
5698 # error. :/
5699 eval {
5700 use warnings FATAL => ('io');
5701 # Locations/views - worth including in the caching setup?
5702 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5703 foreach my $location (keys %$lochash) {
5704 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5705 $ipprefix =~ s/\s+//g;
5706 $ipprefix = new NetAddr::IP $ipprefix;
5707##fixme: how to handle IPv6?
5708next if $ipprefix->{isv6};
5709 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5710 if ($ipprefix->masklen <= 8) {
5711 foreach ($ipprefix->split(8)) {
5712 my $tmp = $_->addr;
5713 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5714 print $datafile "%$location:$tmp\n";
5715 }
5716 } elsif ($ipprefix->masklen <= 16) {
5717 foreach ($ipprefix->split(16)) {
5718 my $tmp = $_->addr;
5719 $tmp =~ s/\.\d+\.\d+$//;
5720 print $datafile "%$location:$tmp\n";
5721 }
5722 } elsif ($ipprefix->masklen <= 24) {
5723 foreach ($ipprefix->split(24)) {
5724 my $tmp = $_->addr;
5725 $tmp =~ s/\.\d+$//;
5726 print $datafile "%$location:$tmp\n";
5727 }
5728 } else {
5729 foreach ($ipprefix->split(32)) {
5730 print $datafile "%$location:".$_->addr."\n";
5731 }
5732 }
5733 }
5734 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5735 }
5736 };
5737 if ($@) {
5738 die "Error writing locations to master file: $@, $!\n";
5739 }
5740
5741 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5742 my %recflags;
5743
5744# For reasons unknown, we can't sanely UNION these statements. Feh.
5745# Supposedly it should work though (note last 3 lines):
5746## PG manual
5747#UNION Clause
5748#
5749#The UNION clause has this general form:
5750#
5751# select_statement UNION [ ALL ] select_statement
5752#
5753#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5754#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5755#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5756 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5757 "FROM records WHERE rdns_id=? AND type=6");
5758 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5759 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5760 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5761 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5762 "ORDER BY masklen(revnet) DESC, rdns_id");
5763 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5764 $revsth->execute();
5765 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5766##fixme: need to find a way to block opening symlinked files without introducing a race.
5767# O_NOFOLLOW
5768# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5769# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5770# still be followed.
5771# but that doesn't help other platforms. :/
5772 my $tmpzone = NetAddr::IP->new($revzone);
5773##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5774## (eg /20 vs /24, starting on .0.0)
5775 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5776 my $cachefile = "$self->{exportcache}/$cz";
5777 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5778 eval {
5779
5780 # write fresh records if:
5781 # - we are not using the cache
5782 # - force_refresh is set
5783 # - the zone has changed
5784 # - the cache file does not exist
5785 # - the cache file is empty
5786 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5787 if ($self->{usecache}) {
5788 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5789 $zonefilehandle = *ZONECACHE;
5790 }
5791
5792 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5793 $soasth->execute($revid);
5794 my (@zsoa) = $soasth->fetchrow_array();
5795 $self->_printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5796 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5797
5798 $recsth->execute($revid);
5799 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5800
5801 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5802 = $recsth->fetchrow_array) {
5803 next if $recflags{$recid};
5804
5805 # Check for out-of-zone data
5806 if ($val =~ /\.arpa$/) {
5807 # val is non-IP
5808 if ($val !~ /$fullzone$/) {
5809 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5810 next;
5811 }
5812 } else {
5813 my $ipval = new NetAddr::IP $val;
5814 if (!$tmpzone->contains($ipval)) {
5815 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5816 next;
5817 }
5818 } # is $val a raw .arpa name?
5819
5820 # Spaces are evil.
5821 $val =~ s/^\s+//;
5822 $val =~ s/\s+$//;
5823 if ($typemap{$type} ne 'TXT') {
5824 # Leading or trailng spaces could be legit in TXT records.
5825 $host =~ s/^\s+//;
5826 $host =~ s/\s+$//;
5827 }
5828
5829 $self->_printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5830 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5831
5832 $recflags{$recid} = 1;
5833
5834 } # while ($recsth)
5835
5836 if ($self->{usecache}) {
5837 close ZONECACHE; # force the file to be written
5838 # catch obvious write errors that leave an empty temp file
5839 if (-s $tmpcache) {
5840 rename $tmpcache, $cachefile
5841 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5842 }
5843 }
5844
5845 } # if $changed or cache filesize is 0
5846
5847 };
5848 if ($@) {
5849 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5850 # error! something borked, and we should be able to fall back on the old cache file
5851 # report the error, somehow.
5852 } else {
5853 # mark zone as unmodified. Only do this if no errors, that way
5854 # export failures should recover a little more automatically.
5855 $zonesth->execute($revid);
5856 }
5857
5858 if ($self->{usecache}) {
5859 # We've already made as sure as we can that a cached zone file is "good",
5860 # although possibly stale/obsolete due to errors creating a new one.
5861 eval {
5862 open CACHE, "<$cachefile" or die $!;
5863 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5864 close CACHE;
5865 };
5866 die $@ if $@;
5867 }
5868
5869 } # while ($revsth)
5870
5871 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5872 "FROM records WHERE domain_id=? AND type=6");
5873 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5874 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5875# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5876 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5877 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5878 $domsth->execute();
5879 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5880##fixme: need to find a way to block opening symlinked files without introducing a race.
5881# O_NOFOLLOW
5882# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5883# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5884# still be followed.
5885# but that doesn't help other platforms. :/
5886 my $cachefile = "$self->{exportcache}/$dom";
5887 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5888 eval {
5889
5890 # write fresh records if:
5891 # - we are not using the cache
5892 # - force_refresh is set
5893 # - the zone has changed
5894 # - the cache file does not exist
5895 # - the cache file is empty
5896 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5897 if ($self->{usecache}) {
5898 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5899 $zonefilehandle = *ZONECACHE;
5900 }
5901
5902 # need to fetch this separately so the SOA comes first in the flatfile....
5903 # Just In Case we need/want to reimport from the flatfile later on.
5904 $soasth->execute($domid);
5905 my (@zsoa) = $soasth->fetchrow_array();
5906 $self->_printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5907 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5908
5909 $recsth->execute($domid);
5910 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5911 next if $recflags{$recid};
5912
5913 # Check for out-of-zone data
5914 $host = $dom if $host eq '@';
5915 if ($host !~ /$dom$/i) {
5916 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5917 next;
5918 }
5919
5920 # Spaces are evil.
5921 $host =~ s/^\s+//;
5922 $host =~ s/\s+$//;
5923 if ($typemap{$type} ne 'TXT') {
5924 # Leading or trailng spaces could be legit in TXT records.
5925 $val =~ s/^\s+//;
5926 $val =~ s/\s+$//;
5927 }
5928
5929 $self->_printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5930 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5931
5932 $recflags{$recid} = 1;
5933
5934 } # while ($recsth)
5935
5936
5937 if ($self->{usecache}) {
5938 close ZONECACHE; # force the file to be written
5939 # catch obvious write errors that leave an empty temp file
5940 if (-s $tmpcache) {
5941 rename $tmpcache, $cachefile
5942 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5943 }
5944 }
5945
5946 } # if $changed or cache filesize is 0
5947
5948 };
5949 if ($@) {
5950 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5951 # error! something borked, and we should be able to fall back on the old cache file
5952 # report the error, somehow.
5953 } else {
5954 # mark domain as unmodified. Only do this if no errors, that way
5955 # export failures should recover a little more automatically.
5956 $zonesth->execute($domid);
5957 }
5958
5959 if ($self->{usecache}) {
5960 # We've already made as sure as we can that a cached zone file is "good",
5961 # although possibly stale/obsolete due to errors creating a new one.
5962 eval {
5963 open CACHE, "<$cachefile" or die $!;
5964 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
5965 close CACHE;
5966 };
5967 die $@ if $@;
5968 }
5969
5970 } # while ($domsth)
5971
5972 return 1;
5973} # end __export_tiny()
5974
5975
5976# Utility sub for __export_tiny above
5977sub _printrec_tiny {
5978 my $self = shift;
5979 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
5980 $loc, $stamp, $expires, $stampactive) = @_;
5981
5982 $loc = '' if !$loc; # de-nullify - just in case
5983##fixme: handle case of record-with-location-that-doesn't-exist better.
5984# note this currently fails safe (tested) - records with a location that
5985# doesn't exist will not be sent to any client
5986# $loc = '' if !$lochash->{$loc};
5987
5988
5989## Records that are valid only before or after a set time
5990
5991# record due to expire sometime is the complex case. we don't want to just
5992# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
5993# is one day instead of the SOA minttl as BIND might do.
5994
5995# consider the case where a record is set to expire a week ahead, but the next
5996# day later you want to change it NOW (or as NOWish as you get with your DNS
5997# management practice). but now you're stuck, because someone, somewhere,
5998# has just done a lookup before your latest change was published, and they'll
5999# be caching that old, broken record for 1 day instead of your zone default
6000# TTL.
6001
6002# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
6003# to still have the expiry happen as scheduled, but we need to find some
6004# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
6005# but we need info on the export frequency.
6006
6007# export the normal, non-expiring record up until $stamp-<guesstimate>, then
6008# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
6009# takes over TTL management.
6010
6011 if ($stampactive) {
6012 if ($expires) {
6013 # record expires at $stamp; decide if we need to keep the TTL and ignore
6014 # the stamp for a time or if we need to change the TTL to 0 and convert
6015 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
6016# extra hack, optimally needs more knowledge of data export frequency
6017# smack the idiot customer who insists on 0 TTLs; they can suck up and
6018# deal with a 10-minute TTL. especially on scheduled changes. note this
6019# should be (export freq * 2), but we don't know the actual export frequency.
6020$ttl = 300 if $ttl == 0; #hack phtui
6021 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
6022 if ((time() + $ahead) < $stamp) {
6023 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
6024 $stamp = '';
6025 } else {
6026 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
6027 $ttl = 0;
6028 $stamp = unixtai64($stamp);
6029 $stamp =~ s/\@//;
6030 }
6031 } else {
6032 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
6033 $stamp = unixtai64($stamp);
6034 $stamp =~ s/\@//;
6035 }
6036 } else {
6037 # flag for active timestamp is false; don't actually put a timestamp in the output
6038 $stamp = '';
6039 }
6040
6041 # support tinydns' auto-TTL
6042 $ttl = '' if $ttl == -1;
6043# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
6044# NS 259200 => 3d
6045# all others 86400 => 1d
6046
6047 if ($revrec eq 'y') {
6048 $val = $zone if $val eq '@';
6049 } else {
6050 $host = $zone if $host eq '@';
6051 }
6052
6053 ## Convert a bare number into an octal-coded pair of octets.
6054 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
6055 sub octalize {
6056 my $tmp = shift;
6057 my $srctype = shift || 'h'; # default assumes hex string
6058 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
6059 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
6060 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
6061 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);
6062 }
6063
6064 # Utility sub-sub for reverse records; with "any-record-in-any-zone"
6065 # we may need to do extra processing on $val to make it publishable.
6066 sub __revswap {
6067 my $host = shift;
6068 my $val = shift;
6069 return ($val, $host) if $val =~ /\.arpa/;
6070 $val = new NetAddr::IP $val;
6071 my $newval = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6072 return ($newval, $host);
6073 }
6074
6075## WARNING: This works to export even the whole Internet's worth of IP space...
6076## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
6077## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
6078## 0/0 is estimated to take ~54 hours and ~256G of disk
6079## RAM usage depends on how many non-template entries you have in the set.
6080## This should probably be done on record addition rather than export; large blocks may need to be done in a
6081## forked process
6082 sub __publish_subnet {
6083 my $self = shift; # *sigh* need to pass in the DNSDB object so we can read a couple of options
6084 my $sub = shift;
6085 my $recflags = shift;
6086 my $hpat = shift;
6087 my $fh = shift;
6088 my $ttl = shift;
6089 my $stamp = shift;
6090 my $loc = shift;
6091 my $zone = new NetAddr::IP shift;
6092 my $ptronly = shift || 0;
6093
6094 # do this conversion once, not (number-of-ips-in-subnet) times
6095 my $arpabase = _ZONE($zone, 'ZONE.in-addr.arpa', 'r', '.');
6096
6097 my $iplist = $sub->splitref(32);
6098 my $ipindex = -1;
6099 foreach (@$iplist) {
6100 my $ip = $_->addr;
6101 $ipindex++;
6102 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
6103 my $lastoct = (split /\./, $ip)[3];
6104 next if $$recflags{$ip}; # && $self->{skip_bcast_255}
6105 $$recflags{$ip}++;
6106 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
6107 my $rec = $hpat; # start fresh with the template for each IP
6108##fixme: there really isn't a good way to handle sub-/24 zones here. This way at least
6109# seems less bad than some alternatives.
6110 $self->_template4_expand(\$rec, $ip, \$sub, $ipindex);
6111 # _template4_expand may blank $rec; if so, don't publish a record
6112 next if !$rec;
6113 if ($ptronly || $zone->masklen > 24) {
6114 print $fh "^$lastoct.$arpabase:$rec:$ttl:$stamp:$loc\n" or die $!;
6115 if (!$ptronly) {
6116 # print a separate A record. Arguably we could use an = record here instead.
6117 print $fh "+$rec:$ip:$ttl:$stamp:$loc\n" or die $!;
6118 }
6119 } else {
6120 print $fh "=$rec:$ip:$ttl:$stamp:$loc\n" or die $!;
6121 }
6122 }
6123 } # __publish_subnet
6124
6125## And now the meat.
6126
6127##fixme? append . to all host/val hostnames
6128#print "debug: rawdata: $host $typemap{$type} $val\n";
6129
6130 if ($typemap{$type} eq 'SOA') {
6131 # host contains pri-ns:responsible
6132 # val is abused to contain refresh:retry:expire:minttl
6133##fixme: "manual" serial vs tinydns-autoserial
6134 # let's be explicit about abusing $host and $val
6135 my ($email, $primary) = (split /:/, $host)[0,1];
6136 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
6137 if ($revrec eq 'y') {
6138##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
6139# what about v6?
6140# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
6141# anyone who says they need sub-nibble v6 delegations, at this time, needs their head examined.
6142 $zone = NetAddr::IP->new($zone);
6143 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
6144 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
6145 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
6146 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
6147 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
6148 or die $!;
6149 }
6150 return; # skips "default" bits just below
6151 }
6152 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6153 }
6154 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
6155 or die $!;
6156
6157 } elsif ($typemap{$type} eq 'A') {
6158
6159 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6160 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
6161
6162 } elsif ($typemap{$type} eq 'NS') {
6163
6164 if ($revrec eq 'y') {
6165 $val = NetAddr::IP->new($val);
6166 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
6167 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
6168 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
6169 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
6170 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
6171 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6172 $$recflags{$szone2} = $val->masklen;
6173 }
6174 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
6175 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
6176 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
6177 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
6178 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6179 $$recflags{$szone2} = $val->masklen;
6180 }
6181 } else {
6182 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
6183 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
6184 $$recflags{$val2} = $val->masklen;
6185 }
6186 } else {
6187 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
6188 }
6189
6190 } elsif ($typemap{$type} eq 'AAAA') {
6191
6192 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6193 my $altgrp = 0;
6194 my @altconv;
6195 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
6196 foreach (split /:/, $val) {
6197 if (/^$/) {
6198 # flag blank entry; this is a series of 0's of (currently) unknown length
6199 $altconv[$altgrp++] = 's';
6200 } else {
6201 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
6202 $altconv[$altgrp++] = octalize($_)
6203 }
6204 }
6205 my $prefix = ":$host:28:";
6206 foreach my $octet (@altconv) {
6207 # if not 's', output
6208 $prefix .= $octet unless $octet =~ /^s$/;
6209 # if 's', output (9-array length)x literal '\000\000'
6210 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
6211 }
6212 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
6213
6214 } elsif ($typemap{$type} eq 'MX') {
6215
6216 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6217 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
6218
6219 } elsif ($typemap{$type} eq 'TXT') {
6220
6221 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6222##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
6223 $val =~ s/:/\\072/g; # may need to replace other symbols
6224 print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
6225
6226# by-hand TXT
6227#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
6228#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
6229#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
6230
6231#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
6232#: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
6233
6234# very long TXT record as brought in by axfr-get
6235# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
6236# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
6237#:longtxt.deepnet.cx:16:
6238#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
6239#\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.
6240#\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.
6241#:3600
6242
6243 } elsif ($typemap{$type} eq 'CNAME') {
6244
6245 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6246 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
6247
6248 } elsif ($typemap{$type} eq 'SRV') {
6249
6250 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6251
6252 # data is two-byte values for priority, weight, port, in that order,
6253 # followed by length/string data
6254
6255 my $prefix = ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
6256
6257 $val .= '.' if $val !~ /\.$/;
6258 foreach (split /\./, $val) {
6259 $prefix .= sprintf "\\%0.3o%s", length($_), $_ or die $!;
6260 }
6261 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
6262
6263 } elsif ($typemap{$type} eq 'RP') {
6264
6265 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6266 # RP consists of two mostly free-form strings.
6267 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
6268 # The second is the "hostname" of a TXT record with more info.
6269 my $prefix = ":$host:17:";
6270 my ($who,$what) = split /\s/, $val;
6271 foreach (split /\./, $who) {
6272 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
6273 }
6274 $prefix .= '\000';
6275 foreach (split /\./, $what) {
6276 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
6277 }
6278 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
6279
6280 } elsif ($typemap{$type} eq 'PTR') {
6281
6282 $$recflags{$val}++;
6283 if ($revrec eq 'y') {
6284
6285 if ($val =~ /\.arpa$/) {
6286 # someone put in the formal .arpa name. humor them.
6287 print $datafile "^$val:$host:$ttl:$stamp:$loc\n" or die $!;
6288 } else {
6289 $zone = NetAddr::IP->new($zone);
6290 if (!$zone->{isv6} && $zone->masklen > 24) {
6291 # sub-octet v4 zone
6292 ($val) = ($val =~ /\.(\d+)$/);
6293 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
6294 ":$host:$ttl:$stamp:$loc\n" or die $!;
6295 } else {
6296 # not going to care about strange results if $val is not an IP value and is resolveable in DNS
6297 $val = NetAddr::IP->new($val);
6298 print $datafile "^".
6299 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
6300 ":$host:$ttl:$stamp:$loc\n" or die $!;
6301 }
6302 } # non-".arpa" $val
6303
6304 } else {
6305 # PTRs in forward zones are less bizarre and insane than some other record types
6306 # in reverse zones... OTOH we can't validate them any which way, so we cross our
6307 # fingers and close our eyes and make it Someone Else's Problem.
6308 print $datafile "^$host:$val:$ttl:$stamp:$loc\n" or die $!;
6309 }
6310
6311 } elsif ($type == 65280) { # A+PTR
6312
6313 $$recflags{$val}++;
6314 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
6315
6316 } elsif ($type == 65281) { # AAAA+PTR
6317
6318 $$recflags{$val}++;
6319 # treat these as two separate records. since tinydns doesn't have
6320 # a native combined type, we have to create them separately anyway.
6321 # print both; a dangling record is harmless, and impossible via web
6322 # UI anyway
6323 $self->_printrec_tiny($datafile,$recid,'n',$recflags, $self->domainName($self->_hostparent($host)),
6324 $host, 28, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
6325 $self->_printrec_tiny($datafile, $recid, 'y', $recflags, $zone,
6326 $host, 12, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
6327
6328##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
6329# type 6 is for AAAA+PTR, type 3 is for AAAA
6330
6331 } elsif ($type == 65282) { # PTR template
6332
6333 # only useful for v4 with standard DNS software, since this expands all
6334 # IPs in $zone (or possibly $val?) with autogenerated records
6335 $val = NetAddr::IP->new($val);
6336 return if $val->{isv6};
6337
6338 if ($val->masklen <= 16) {
6339 foreach my $sub ($val->split(16)) {
6340 $self->__publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 1);
6341 }
6342 } else {
6343 $self->__publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 1);
6344 }
6345
6346 } elsif ($type == 65283) { # A+PTR template
6347
6348 $val = NetAddr::IP->new($val);
6349 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
6350 return if $val->{isv6};
6351
6352 if ($val->masklen < 16) {
6353 foreach my $sub ($val->split(16)) {
6354 $self->__publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 0);
6355 }
6356 } else {
6357 $self->__publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, $zone, 0);
6358 }
6359
6360 } elsif ($type == 65284) { # AAAA+PTR template
6361 # Stub for completeness. Could be exported to DNS software that supports
6362 # some degree of internal automagic in generic-record-creation
6363 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
6364
6365 } elsif ($type == 65285) { # Delegation
6366 # This is intended for reverse zones, but may prove useful in forward zones.
6367
6368 # All delegations need to create one or more NS records. The NS record handler knows what to do.
6369 $self->_printrec_tiny($datafile,$recid,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
6370 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
6371 if ($revrec eq 'y') {
6372 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
6373 # to redirect all of the individual IP lookups as well.
6374 # OR
6375 # create NS records for each IP
6376 # Not sure how this would actually resolve if a /24 or larger was delegated
6377 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
6378 my $dblock = NetAddr::IP->new($val);
6379 if (!$dblock->{isv6} && $dblock->masklen > 24) {
6380 my @subs = $dblock->split;
6381 foreach (@subs) {
6382 next if $$recflags{"$_"};
6383 my ($oct) = ($_->addr =~ /(\d+)$/);
6384 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
6385 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
6386 $$recflags{"$_"}++;
6387 }
6388 }
6389 }
6390
6391##
6392## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
6393##
6394
6395 } elsif ($type == 44) { # SSHFP
6396
6397 ($host,$val) = __revswap($host,$val) if $revrec eq 'y';
6398
6399 my ($algo,$fpt,$fp) = split /\s+/, $val;
6400
6401 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
6402 while (my ($byte) = ($fp =~ /^(..)/) ) {
6403 $rec .= sprintf "\\%0.3o", hex($byte);
6404 $fp =~ s/^..//;
6405 }
6406 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
6407
6408 } else {
6409 # raw record. we don't know what's in here, so we ASS-U-ME the user has
6410 # put it in correctly, since either the user is messing directly with the
6411 # database, or the record was imported via AXFR
6412 # <split by char>
6413 # convert anything not a-zA-Z0-9.- to octal coding
6414
6415##fixme: add flag to export "unknown" record types - note we'll probably end up
6416# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
6417 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
6418
6419 } # record type if-else
6420
6421} # end _printrec_tiny()
6422
6423
6424## DNSDB::mailNotify()
6425# Sends notification mail to recipients regarding a DNSDB operation
6426sub mailNotify {
6427 my $self = shift;
6428 my $dbh = $self->{dbh};
6429 my ($subj,$message) = @_;
6430
6431 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
6432
6433 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
6434
6435 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
6436
6437 $mailer->mail($mailsender);
6438 $mailer->to($self->{mailnotify});
6439 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
6440 "To: <$self->{mailnotify}>\n",
6441 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
6442 "Subject: $subj\n",
6443 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
6444 "Organization: $self->{orgname}\n",
6445 "\n$message\n");
6446 $mailer->quit;
6447}
6448
6449# shut Perl up
64501;
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