source: trunk/DNSDB.pm@ 612

Last change on this file since 612 was 612, checked in by Kris Deugau, 10 years ago

/trunk

Fix silly copy-paste context typos moving _check_hostname_form() into _validate_1()
  • Property svn:keywords set to Date Rev Author Id
File size: 214.8 KB
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1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 612 2014-04-22 21:32:25Z kdeugau $
5# Copyright 2008-2013 Kris Deugau <kdeugau@deepnet.cx>
6#
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program. If not, see <http://www.gnu.org/licenses/>.
19##
20
21package DNSDB;
22
23use strict;
24use warnings;
25use Exporter;
26use DBI;
27use Net::DNS;
28use Crypt::PasswdMD5;
29use Digest::MD5 qw(md5_hex);
30use Net::SMTP;
31use NetAddr::IP 4.027 qw(:lower);
32use POSIX;
33use Fcntl qw(:flock);
34use Time::TAI64 qw(:tai64);
35
36use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
37
38$VERSION = 1.3; ##VERSION##
39@ISA = qw(Exporter);
40@EXPORT_OK = qw(
41 &initGlobals &login &initActionLog
42 &getPermissions &changePermissions &comparePermissions
43 &changeGroup
44 &connectDB &finish
45 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
46 &getZoneCount &getZoneList &getZoneLocation
47 &addGroup &delGroup &getChildren &groupName
48 &getGroupCount &getGroupList
49 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
50 &getUserCount &getUserList &getUserDropdown
51 &addLoc &updateLoc &delLoc &getLoc
52 &getLocCount &getLocList &getLocDropdown
53 &getSOA &updateSOA &getRecLine &getRecList &getRecCount
54 &addRec &updateRec &delRec
55 &getLogCount &getLogEntries
56 &getRevPattern
57 &getTypelist
58 &parentID
59 &isParent
60 &zoneStatus &getZonesByCIDR &importAXFR
61 &export
62 &mailNotify
63 %typemap %reverse_typemap
64 @permtypes $permlist %permchains
65 );
66
67@EXPORT = qw(%typemap %reverse_typemap @permtypes $permlist %permchains);
68%EXPORT_TAGS = ( ALL => [qw(
69 &initGlobals &login &initActionLog
70 &getPermissions &changePermissions &comparePermissions
71 &changeGroup
72 &connectDB &finish
73 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
74 &getZoneCount &getZoneList &getZoneLocation
75 &addGroup &delGroup &getChildren &groupName
76 &getGroupCount &getGroupList
77 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
78 &getUserCount &getUserList &getUserDropdown
79 &addLoc &updateLoc &delLoc &getLoc
80 &getLocCount &getLocList &getLocDropdown
81 &getSOA &updateSOA &getRecLine &getRecList &getRecCount
82 &addRec &updateRec &delRec
83 &getLogCount &getLogEntries
84 &getRevPattern
85 &getTypelist
86 &parentID
87 &isParent
88 &zoneStatus &getZonesByCIDR &importAXFR
89 &export
90 &mailNotify
91 %typemap %reverse_typemap
92 @permtypes $permlist %permchains
93 )]
94 );
95
96our $errstr = '';
97our $resultstr = '';
98
99# Arguably defined wholly in the db, but little reason to change without supporting code changes
100# group_view, user_view permissions? separate rDNS permission(s)?
101our @permtypes = qw (
102 group_edit group_create group_delete
103 user_edit user_create user_delete
104 domain_edit domain_create domain_delete
105 record_edit record_create record_delete record_locchg
106 location_edit location_create location_delete location_view
107 self_edit admin
108);
109our $permlist = join(',',@permtypes);
110
111# Some permissions more or less require certain others.
112our %permchains = (
113 user_edit => 'self_edit',
114 location_edit => 'location_view',
115 location_create => 'location_view',
116 location_delete => 'location_view',
117 record_locchg => 'location_view',
118);
119
120# DNS record type map and reverse map.
121# loaded from the database, from http://www.iana.org/assignments/dns-parameters
122our %typemap;
123our %reverse_typemap;
124
125## (Semi)private variables
126
127# Hash of functions for validating record types. Filled in initGlobals() since
128# it relies on visibility flags from the rectypes table in the DB
129my %validators;
130
131# Entity-relationship reference hashes.
132my %par_tbl = (
133 group => 'groups',
134 user => 'users',
135 defrec => 'default_records',
136 defrevrec => 'default_rev_records',
137 domain => 'domains',
138 revzone => 'revzones',
139 record => 'records'
140 );
141my %id_col = (
142 group => 'group_id',
143 user => 'user_id',
144 defrec => 'record_id',
145 defrevrec => 'record_id',
146 domain => 'domain_id',
147 revzone => 'rdns_id',
148 record => 'record_id'
149 );
150my %par_col = (
151 group => 'parent_group_id',
152 user => 'group_id',
153 defrec => 'group_id',
154 defrevrec => 'group_id',
155 domain => 'group_id',
156 revzone => 'group_id',
157 record => 'domain_id'
158 );
159my %par_type = (
160 group => 'group',
161 user => 'group',
162 defrec => 'group',
163 defrevrec => 'group',
164 domain => 'group',
165 revzone => 'group',
166 record => 'domain'
167 );
168
169##
170## Constructor and destructor
171##
172
173sub new {
174 my $this = shift;
175 my $class = ref($this) || $this;
176 my %args = @_;
177
178 # Prepopulate a basic config. Note some of these *will* cause errors if left unset.
179 # note: add appropriate stanzas in __cfgload() to parse these
180 my %defconfig = (
181 # The only configuration options not loadable from a config file.
182 configfile => "/etc/dnsdb/dnsdb.conf", ##CFG_LEAF##
183
184 # Database connection info
185 dbname => 'dnsdb',
186 dbuser => 'dnsdb',
187 dbpass => 'secret',
188 dbhost => '',
189
190 # Email notice settings
191 mailhost => 'smtp.example.com',
192 mailnotify => 'dnsdb@example.com', # to
193 mailsender => 'dnsdb@example.com', # from
194 mailname => 'DNS Administration',
195 orgname => 'Example Corp',
196 domain => 'example.com',
197
198 # Template directory
199 templatedir => 'templates/',
200# fmeh. this is a real web path, not a logical internal one. hm..
201# cssdir => 'templates/',
202 sessiondir => 'session/',
203 exportcache => 'cache/',
204 usecache => 1, # do we bother using the cache above?
205
206 # Session params
207 timeout => '1h', # passed as-is to CGI::Session
208
209 # Other miscellanea
210 log_failures => 1, # log all evarthing by default
211 perpage => 15,
212 maxfcgi => 10, # reasonable default?
213 force_refresh => 1,
214 lowercase => 0, # mangle as little as possible by default
215 # show IPs and CIDR blocks as-is for reverse zones. valid values are
216 # 'none' (default, show natural IP or CIDR)
217 # 'zone' (zone name, wherever used)
218 # 'record' (IP or CIDR values in reverse record lists)
219 # 'all' (all IP values in any reverse zone view)
220 showrev_arpa => 'none',
221 );
222
223 # Config file parse calls.
224 # If we are passed a blank argument for $args{configfile},
225 # we should NOT parse the default config file - we will
226 # rely on hardcoded defaults OR caller-specified values.
227 # If we are passed a non-blank argument, parse that file.
228 # If no config file is specified, parse the default one.
229 my %siteconfig;
230 if (defined($args{configfile})) {
231 if ($args{configfile}) {
232 return if !__cfgload($args{configfile}, \%siteconfig);
233 }
234 } else {
235 return if !__cfgload($defconfig{configfile}, \%siteconfig);
236 }
237
238 # Assemble the object. Apply configuration hashes in order of precedence.
239 my $self = {
240 # Hardcoded defaults
241 %defconfig,
242 # Default config file OR caller-specified one, loaded above
243 %siteconfig,
244 # Caller-specified arguments
245 %args
246 };
247 bless $self, $class;
248
249 # Several settings are booleans. Handle multiple possible ways of setting them.
250 for my $boolopt ('log_failures', 'force_refresh', 'lowercase', 'usecache') {
251 if ($self->{$boolopt} ne '1' && $self->{$boolopt} ne '0') {
252 # true/false, on/off, yes/no all valid.
253 if ($self->{$boolopt} =~ /^(?:true|false|t|f|on|off|yes|no)$/) {
254 if ($self->{$boolopt} =~ /(?:true|t|on|yes)/) {
255 $self->{$boolopt} = 1;
256 } else {
257 $self->{$boolopt} = 0;
258 }
259 } else {
260 warn "Bad $boolopt setting $self->{$boolopt}, using default\n";
261 $self->{$boolopt} = $defconfig{$boolopt};
262 }
263 }
264 }
265
266 # Enum-ish option(s)
267 if (!grep /$self->{showrev_arpa}/, ('none','zone','record','all')) {
268 warn "Bad showrev_arpa setting $self->{showrev_arpa}, using default\n";
269 $self->{showrev_arpa} = 'none';
270 }
271
272 # Try to connect to the DB, and initialize a number of handy globals.
273 $self->{dbh} = connectDB($self->{dbname}, $self->{dbuser}, $self->{dbpass}, $self->{dbhost}) or return;
274 $self->initGlobals();
275
276 return $self;
277}
278
279sub DESTROY {
280 my $self = shift;
281 $self->{dbh}->disconnect if $self->{dbh};
282}
283
284sub errstr { $DNSDB::errstr; }
285
286##
287## utility functions
288##
289
290## DNSDB::_rectable()
291# Takes default+rdns flags, returns appropriate table name
292sub _rectable {
293 my $def = shift;
294 my $rev = shift;
295
296 return 'records' if $def ne 'y';
297 return 'default_records' if $rev ne 'y';
298 return 'default_rev_records';
299} # end _rectable()
300
301## DNSDB::_recparent()
302# Takes default+rdns flags, returns appropriate parent-id column name
303sub _recparent {
304 my $def = shift;
305 my $rev = shift;
306
307 return 'group_id' if $def eq 'y';
308 return 'rdns_id' if $rev eq 'y';
309 return 'domain_id';
310} # end _recparent()
311
312## DNSDB::_ipparent()
313# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
314# Takes default and reverse flags, IP (fragment) to check, parent zone ID,
315# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
316# database insertion)
317sub _ipparent {
318 my $self = shift;
319 my $dbh = $self->{dbh};
320 my $defrec = shift;
321 my $revrec = shift;
322 my $val = shift;
323 my $id = shift;
324 my $addr = shift;
325
326 return if $revrec ne 'y'; # this sub not useful in forward zones
327
328 $$addr = NetAddr::IP->new($$val); #necessary?
329
330 # subsub to split, reverse, and overlay an IP fragment on a netblock
331 sub __rev_overlay {
332 my $splitme = shift; # ':' or '.', m'lud?
333 my $parnet = shift;
334 my $val = shift;
335 my $addr = shift;
336
337 my $joinme = $splitme;
338 $splitme = '\.' if $splitme eq '.';
339 my @working = reverse(split($splitme, $parnet->addr));
340 my @parts = reverse(split($splitme, $$val));
341 for (my $i = 0; $i <= $#parts; $i++) {
342 $working[$i] = $parts[$i];
343 }
344 my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
345 return 0 unless $checkme->within($parnet);
346 $$addr = $checkme; # force "correct" IP to be recorded.
347 return 1;
348 }
349
350 my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
351 my $parnet = NetAddr::IP->new($parstr);
352
353 # Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
354 return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
355 return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
356
357 if ($$addr && ($$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/ || $$val =~ m|/\d+$|)) {
358 # the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address,
359 # or a netblock (only expected on templates)
360 # the rest we have to restructure before fiddling. *sigh*
361 return 1 if $$addr->within($parnet);
362 } else {
363 # We don't have a complete IP in $$val (yet)... unless we have a netblock
364 if ($parnet->addr =~ /:/) {
365 $$val =~ s/^:+//; # gotta strip'em all...
366 return __rev_overlay(':', $parnet, $val, $addr);
367 }
368 if ($parnet->addr =~ /\./) {
369 $$val =~ s/^\.+//;
370 return __rev_overlay('.', $parnet, $val, $addr);
371 }
372 # should be impossible to get here...
373 }
374 # ... and here.
375 # can't do nuttin' in forward zones
376} # end _ipparent()
377
378## DNSDB::_maybeip()
379# Wrapper for quick "does this look like an IP address?" regex, so we don't make dumb copy-paste mistakes
380sub _maybeip {
381 my $izzit = shift; # reference
382 return 1 if $$izzit =~ m,^(?:[\d\./]+|[0-9a-fA-F:/]+)$,;
383}
384
385## DNSDB::_inrev()
386# Check if a given "hostname" is within a given reverse zone
387# Takes a reference to the "hostname" and the reverse zone CIDR as a NetAddr::IP
388# Returns true/false. Sets $errstr on errors.
389sub _inrev {
390 my $self = shift;
391 my $dbh = $self->{dbh};
392 # References, since we might munge them
393 my $fq = shift;
394 my $zone = shift;
395
396 # set default error
397 $errstr = "$$fq not within $zone";
398
399 # Unlike forward zones, we will not coerce the data into the reverse zone - an A record
400 # in a reverse zone is already silly enough without appending a mess of 1.2.3.in-addr.arpa
401 # (or worse, 1.2.3.4.5.6.7.8.ip6.arpa) on the end of the nominal "hostname".
402 # We're also going to allow the "hostname" to be stored as .arpa or IP, because of
403 # non-IP FQDNs in .arpa
404 if ($$fq =~ /\.arpa$/) {
405 # "FQDN" could be any syntactically legitimate string, but it must be within the formal
406 # .arpa zone. Note we're not validating these for correct reverse-IP values.
407 # yes, we really need the v6 branch on the end here.
408 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
409 return unless $$fq =~ /$zone$/;
410 } else {
411 # in most cases we should be getting a real IP as the "FQDN" to test
412 my $addr = new NetAddr::IP $$fq if _maybeip($fq);
413
414 # "FQDN" should be a valid IP address. Normalize formatting if so.
415 if (!$addr) {
416 $errstr = "$$fq is not a valid IP address";
417 return;
418 }
419 return if !$zone->contains($addr);
420 ($$fq = $addr) =~ s{/(?:32|128)$}{};
421 }
422 return 1;
423} # end _inrev()
424
425## DNSDB::_hostparent()
426# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
427# Takes a hostname.
428# Returns the domain ID of the parent domain if one was found.
429sub _hostparent {
430 my $self = shift;
431 my $dbh = $self->{dbh};
432 my $hname = shift;
433
434 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
435 my @hostbits = split /\./, $hname;
436 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE lower(domain) = lower(?) GROUP BY domain_id");
437 foreach (@hostbits) {
438 $sth->execute($hname);
439 my ($found, $parid) = $sth->fetchrow_array;
440 if ($found) {
441 return $parid;
442 }
443 $hname =~ s/^$_\.//;
444 }
445} # end _hostparent()
446
447## DNSDB::_log()
448# Log an action
449# Takes a log entry hash containing at least:
450# group_id, log entry
451# and optionally one or more of:
452# domain_id, rdns_id
453# The %userdata hash provides the user ID, username, and fullname
454sub _log {
455 my $self = shift;
456 my $dbh = $self->{dbh};
457
458 my %args = @_;
459
460 $args{rdns_id} = 0 if !$args{rdns_id};
461 $args{domain_id} = 0 if !$args{domain_id};
462
463##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
464# if ($self->{log_channel} eq 'sql') {
465 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
466 undef,
467 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
468 $self->{loguserid}, $self->{logusername}, $self->{logfullname}) );
469# } elsif ($self->{log_channel} eq 'file') {
470# } elsif ($self->{log_channel} eq 'syslog') {
471# }
472} # end _log
473
474
475##
476## Record validation subs.
477##
478
479## All of these subs take substantially the same arguments:
480# a hash containing at least the following keys:
481# - defrec (default/live flag)
482# - revrec (forward/reverse flag)
483# - id (parent entity ID)
484# - host (hostname)
485# - rectype
486# - val (IP, hostname [CNAME/MX/SRV] or text)
487# - addr (NetAddr::IP object from val. May be undef.)
488# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
489# host, rectype, and addr should be references as these may be modified in validation
490
491# A record
492sub _validate_1 {
493 my $self = shift;
494 my $dbh = $self->{dbh};
495
496 my %args = @_;
497
498# only for strict type restrictions
499# return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
500
501 if ($args{revrec} eq 'y') {
502 # Get the revzone, so we can see if ${$args{val}} is in that zone
503 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
504
505 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
506
507 # ${$args{val}} is either a valid IP or a string ending with the .arpa zone name;
508 # now check if it's a well-formed FQDN
509 return ('FAIL', $errstr) if ! _check_hostname_form($args{val}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
510 ${$args{val}} =~ /\.arpa$/;
511
512 # Check IP is well-formed, and that it's a v4 address
513 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
514 return ('FAIL',"A record must be a valid IPv4 address")
515 unless ${$args{host}} =~ /^\d+\.\d+\.\d+\.\d+$/;
516 $args{addr} = new NetAddr::IP ${$args{host}};
517 return ('FAIL',"A record must be a valid IPv4 address")
518 unless $args{addr} && !$args{addr}->{isv6};
519 # coerce IP/value to normalized form for storage
520 ${$args{host}} = $args{addr}->addr;
521
522 # I'm just going to ignore the utterly barmy idea of an A record in the *default*
523 # records for a reverse zone; it's bad enough to find one in funky legacy data.
524
525 } else {
526 # revrec ne 'y'
527
528 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
529 # or the intended parent domain for live records.
530 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
531 ${$args{host}} =~ s/\.*$/\.$pname/ if (${$args{host}} ne '@' && ${$args{host}} !~ /$pname$/);
532
533 # Check IP is well-formed, and that it's a v4 address
534 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
535 return ('FAIL',"A record must be a valid IPv4 address")
536 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
537 return ('FAIL',"A record must be a valid IPv4 address")
538 unless $args{addr} && !$args{addr}->{isv6};
539 # coerce IP/value to normalized form for storage
540 ${$args{val}} = $args{addr}->addr;
541 }
542
543 return ('OK','OK');
544} # done A record
545
546# NS record
547sub _validate_2 {
548 my $self = shift;
549 my $dbh = $self->{dbh};
550
551 my %args = @_;
552
553 # Check that the target of the record is within the parent.
554 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
555 if ($args{defrec} eq 'n') {
556 # Check if IP/address/zone/"subzone" is within the parent
557 if ($args{revrec} eq 'y') {
558 my $tmpip = NetAddr::IP->new(${$args{val}});
559 my $pname = $self->revName($args{id});
560 return ('FAIL',"${$args{val}} not within $pname")
561 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
562 # Sub the returned thing for ZONE? This could get stupid if you have typos...
563 ${$args{val}} =~ s/ZONE/$tmpip->address/;
564 } else {
565 my $pname = $self->domainName($args{id});
566 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
567 }
568 } else {
569 # Default reverse NS records should always refer to the implied parent
570 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
571 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
572 }
573
574# Let this lie for now. Needs more magic.
575# # Check IP is well-formed, and that it's a v4 address
576# return ('FAIL',"A record must be a valid IPv4 address")
577# unless $addr && !$addr->{isv6};
578# # coerce IP/value to normalized form for storage
579# $$val = $addr->addr;
580
581 return ('OK','OK');
582} # done NS record
583
584# CNAME record
585sub _validate_5 {
586 my $self = shift;
587 my $dbh = $self->{dbh};
588
589 my %args = @_;
590
591# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
592# This is fundamentally a messy operation and should really just be taken care of by the
593# export process, not manual maintenance of the necessary records.
594 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
595
596 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
597 # or the intended parent domain for live records.
598 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
599 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
600
601 return ('OK','OK');
602} # done CNAME record
603
604# SOA record
605sub _validate_6 {
606 # Smart monkeys won't stick their fingers in here; we have
607 # separate dedicated routines to deal with SOA records.
608 return ('OK','OK');
609} # done SOA record
610
611# PTR record
612sub _validate_12 {
613 my $self = shift;
614 my $dbh = $self->{dbh};
615
616 my %args = @_;
617
618 if ($args{revrec} eq 'y') {
619 if ($args{defrec} eq 'n') {
620 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
621 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
622 ${$args{val}} = $args{addr}->addr;
623 } else {
624 if (${$args{val}} =~ /\./) {
625 # looks like a v4 or fragment
626 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
627 # woo! a complete IP! validate it and normalize, or fail.
628 $args{addr} = NetAddr::IP->new(${$args{val}})
629 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
630 ${$args{val}} = $args{addr}->addr;
631 } else {
632 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
633 }
634 } elsif (${$args{val}} =~ /[a-f:]/) {
635 # looks like a v6 or fragment
636 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
637 if ($args{addr}) {
638 if ($args{addr}->addr =~ /^0/) {
639 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
640 } else {
641 ${$args{val}} = $args{addr}->addr;
642 }
643 }
644 } else {
645 # bare number (probably). These could be v4 or v6, so we'll
646 # expand on these on creation of a reverse zone.
647 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
648 }
649 ${$args{host}} =~ s/\.*$/\.$self->{domain}/ if ${$args{host}} !~ /(?:$self->{domain}|ADMINDOMAIN)$/;
650 }
651
652# Multiple PTR records do NOT generally do what most people believe they do,
653# and tend to fail in the most awkward way possible. Check and warn.
654# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
655
656 my @checkvals = (${$args{val}});
657 if (${$args{val}} =~ /,/) {
658 # push . and :: variants into checkvals if val has ,
659 my $tmp;
660 ($tmp = ${$args{val}}) =~ s/,/./;
661 push @checkvals, $tmp;
662 ($tmp = ${$args{val}}) =~ s/,/::/;
663 push @checkvals, $tmp;
664 }
665 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
666 foreach my $checkme (@checkvals) {
667 if ($args{update}) {
668 # Record update. There should usually be an existing PTR (the record being updated)
669 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
670 " WHERE val = ?", undef, ($checkme)) };
671 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
672 if @ptrs && (!grep /^$args{update}$/, @ptrs);
673 } else {
674 # New record. Always warn if a PTR exists
675 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
676 " WHERE val = ?", undef, ($checkme));
677 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
678 if $ptrcount;
679 }
680 }
681
682 } else {
683 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
684 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
685 # PTR records on export
686 return ('FAIL',"Forward zones cannot contain PTR records");
687 }
688
689 return ('OK','OK');
690} # done PTR record
691
692# MX record
693sub _validate_15 {
694 my $self = shift;
695 my $dbh = $self->{dbh};
696
697 my %args = @_;
698
699# Not absolutely true but WTF use is an MX record for a reverse zone?
700 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
701
702 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
703 ${$args{dist}} =~ s/\s*//g;
704 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
705
706 ${$args{fields}} = "distance,";
707 push @{$args{vallist}}, ${$args{dist}};
708
709 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
710 # or the intended parent domain for live records.
711 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
712 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
713
714# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
715# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
716# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
717# return ('FAIL',"$val is not a valid IP address") if !$addr;
718# }
719# }
720
721 return ('OK','OK');
722} # done MX record
723
724# TXT record
725sub _validate_16 {
726 my $self = shift;
727
728 my %args = @_;
729
730 if ($args{revrec} eq 'y') {
731 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
732 # or the intended parent domain for live records.
733 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
734 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
735 }
736
737 # Could arguably put a WARN return here on very long (>512) records
738 return ('OK','OK');
739} # done TXT record
740
741# RP record
742sub _validate_17 {
743 # Probably have to validate these some day
744 return ('OK','OK');
745} # done RP record
746
747# AAAA record
748sub _validate_28 {
749 my $self = shift;
750 my $dbh = $self->{dbh};
751
752 my %args = @_;
753
754 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
755
756 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
757 # or the intended parent domain for live records.
758 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
759 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
760
761 # Check IP is well-formed, and that it's a v6 address
762 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
763 unless $args{addr} && $args{addr}->{isv6};
764 # coerce IP/value to normalized form for storage
765 ${$args{val}} = $args{addr}->addr;
766
767 return ('OK','OK');
768} # done AAAA record
769
770# SRV record
771sub _validate_33 {
772 my $self = shift;
773 my $dbh = $self->{dbh};
774
775 my %args = @_;
776
777# Not absolutely true but WTF use is an SRV record for a reverse zone?
778 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
779
780 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
781 ${$args{dist}} =~ s/\s*//g;
782 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
783
784 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
785 # or the intended parent domain for live records.
786 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
787 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
788
789 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
790 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
791 return ('FAIL',"Port and weight are required for SRV records")
792 unless defined(${$args{weight}}) && defined(${$args{port}});
793 ${$args{weight}} =~ s/\s*//g;
794 ${$args{port}} =~ s/\s*//g;
795
796 return ('FAIL',"Port and weight are required, and must be numeric")
797 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
798
799 ${$args{fields}} = "distance,weight,port,";
800 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
801
802 return ('OK','OK');
803} # done SRV record
804
805# Now the custom types
806
807# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
808sub _validate_65280 {
809 my $self = shift;
810 my $dbh = $self->{dbh};
811
812 my %args = @_;
813
814 my $code = 'OK';
815 my $msg = 'OK';
816
817 if ($args{defrec} eq 'n') {
818 # live record; revrec determines whether we validate the PTR or A component first.
819
820 if ($args{revrec} eq 'y') {
821 ($code,$msg) = $self->_validate_12(%args);
822 return ($code,$msg) if $code eq 'FAIL';
823
824 # check A+PTR is really v4
825 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
826 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
827 # check AAAA+PTR is really v6
828 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
829 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
830
831 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
832 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
833 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
834 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
835 $msg .= "\n$addmsg" if $code eq 'WARN';
836 $msg = $addmsg if $code eq 'OK';
837 ${$args{rectype}} = $reverse_typemap{PTR};
838 return ('WARN', $msg);
839 }
840
841 # Add domain ID to field list and values
842 ${$args{fields}} .= "domain_id,";
843 push @{$args{vallist}}, ${$args{domid}};
844
845 } else {
846 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
847 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
848 return ($code,$msg) if $code eq 'FAIL';
849
850 # Check if the requested reverse zone exists - note, an IP fragment won't
851 # work here since we don't *know* which parent to put it in.
852 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
853 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
854 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
855 if (!$revid) {
856 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
857 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
858 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
859 return ('WARN', $msg);
860 }
861
862 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
863 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
864 if ($args{update}) {
865 # Record update. There should usually be an existing PTR (the record being updated)
866 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
867 " WHERE val = ?", undef, (${$args{val}})) };
868 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
869 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
870 $code = 'WARN';
871 }
872 } else {
873 # New record. Always warn if a PTR exists
874 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
875 " WHERE val = ?", undef, (${$args{val}}));
876 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
877 if $ptrcount;
878 $code = 'WARN' if $ptrcount;
879 }
880
881# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
882# " WHERE val = ?", undef, ${$args{val}});
883# if ($ptrcount) {
884# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
885# " WHERE val = ?
886# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
887# $code = 'WARN';
888# }
889
890 ${$args{fields}} .= "rdns_id,";
891 push @{$args{vallist}}, $revid;
892 }
893
894 } else { # defrec eq 'y'
895 if ($args{revrec} eq 'y') {
896 ($code,$msg) = $self->_validate_12(%args);
897 return ($code,$msg) if $code eq 'FAIL';
898 if (${$args{rectype}} == 65280) {
899 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
900 if ${$args{val}} =~ /:/;
901 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
902 } elsif (${$args{rectype}} == 65281) {
903 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
904 if ${$args{val}} =~ /\./;
905 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
906 }
907 } else {
908 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
909 # domains, since you wouldn't be able to substitute both domain and reverse zone
910 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
911 # confuse the hell out of pretty much anything that uses them.
912##fixme: make this a config flag?
913 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
914 }
915 }
916
917 return ($code, $msg);
918} # done A+PTR record
919
920# AAAA+PTR record
921# A+PTR above has been magicked to handle AAAA+PTR as well.
922sub _validate_65281 {
923 return _validate_65280(@_);
924} # done AAAA+PTR record
925
926# PTR template record
927sub _validate_65282 {
928 my $self = shift;
929 my $dbh = $self->{dbh};
930
931 my %args = @_;
932
933 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
934 if ($args{revrec} eq 'y') {
935 if ($args{defrec} eq 'n') {
936 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
937 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
938##fixme: warn if $args{val} is not /31 or larger block?
939 ${$args{val}} = "$args{addr}";
940 } else {
941 if (${$args{val}} =~ /\./) {
942 # looks like a v4 or fragment
943 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
944 # woo! a complete IP! validate it and normalize, or fail.
945 $args{addr} = NetAddr::IP->new(${$args{val}})
946 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
947 ${$args{val}} = "$args{addr}";
948 } else {
949 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
950 }
951 } elsif (${$args{val}} =~ /[a-f:]/) {
952 # looks like a v6 or fragment
953 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
954 if ($args{addr}) {
955 if ($args{addr}->addr =~ /^0/) {
956 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
957 } else {
958 ${$args{val}} = "$args{addr}";
959 }
960 }
961 } else {
962 # bare number (probably). These could be v4 or v6, so we'll
963 # expand on these on creation of a reverse zone.
964 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
965 }
966 }
967##fixme: validate %-patterns?
968
969# Unlike single PTR records, there is absolutely no way to sanely support multiple
970# PTR templates for the same block, since they expect to expand to all the individual
971# IPs on export. Nested templates should be supported though.
972
973 my @checkvals = (${$args{val}});
974 if (${$args{val}} =~ /,/) {
975 # push . and :: variants into checkvals if val has ,
976 my $tmp;
977 ($tmp = ${$args{val}}) =~ s/,/./;
978 push @checkvals, $tmp;
979 ($tmp = ${$args{val}}) =~ s/,/::/;
980 push @checkvals, $tmp;
981 }
982##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
983# Per Netblock such that they don't conflict on export
984 my $typeck;
985# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
986 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
987# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
988 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
989# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
990 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
991 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
992 "AND (type=65282 OR $typeck)");
993 foreach my $checkme (@checkvals) {
994 $pcsth->execute($checkme);
995 my ($rc) = $pcsth->fetchrow_array;
996 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
997 }
998
999 } else {
1000 return ('FAIL', "Forward zones cannot contain PTR records");
1001 }
1002
1003 return ('OK','OK');
1004} # done PTR template record
1005
1006# A+PTR template record
1007sub _validate_65283 {
1008 my $self = shift;
1009 my $dbh = $self->{dbh};
1010
1011 my %args = @_;
1012
1013 my ($code,$msg) = ('OK','OK');
1014
1015##fixme: need to fiddle things since A+PTR templates are acceptable in live
1016# forward zones but not default records
1017 if ($args{defrec} eq 'n') {
1018 if ($args{revrec} eq 'n') {
1019 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
1020 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
1021 return ($code,$msg) if $code eq 'FAIL';
1022
1023 # Check if the requested reverse zone exists - note, an IP fragment won't
1024 # work here since we don't *know* which parent to put it in.
1025 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1026 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1027 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1028 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
1029 if (!$revid) {
1030 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
1031 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
1032##fixme: add A template, AAAA template types?
1033# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1034 return ('FAIL', $msg);
1035 }
1036
1037 # Add reverse zone ID to field list and values
1038 ${$args{fields}} .= "rdns_id,";
1039 push @{$args{vallist}}, $revid;
1040
1041 } else {
1042 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
1043 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1044 ${$args{val}} = "$args{addr}";
1045
1046 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1047 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1048 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1049 $msg .= "\n$addmsg" if $code eq 'WARN';
1050 $msg = $addmsg if $code eq 'OK';
1051 ${$args{rectype}} = 65282;
1052 return ('WARN', $msg);
1053 }
1054
1055 # Add domain ID to field list and values
1056 ${$args{fields}} .= "domain_id,";
1057 push @{$args{vallist}}, ${$args{domid}};
1058 }
1059
1060 } else {
1061 my ($code,$msg) = $self->_validate_65282(%args);
1062 return ($code, $msg) if $code eq 'FAIL';
1063 # get domain, check against ${$args{name}}
1064 }
1065
1066 return ('OK','OK');
1067} # done AAAA+PTR template record
1068
1069# AAAA+PTR template record
1070sub _validate_65284 {
1071 return ('OK','OK');
1072} # done AAAA+PTR template record
1073
1074# Delegation record
1075# This is essentially a specialized clone of the NS record, primarily useful
1076# for delegating IPv4 sub-/24 reverse blocks
1077sub _validate_65285 {
1078 my $self = shift;
1079 my $dbh = $self->{dbh};
1080
1081 my %args = @_;
1082
1083# Almost, but not quite, identical to NS record validation.
1084
1085 # Check that the target of the record is within the parent.
1086 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
1087 if ($args{defrec} eq 'n') {
1088 # Check if IP/address/zone/"subzone" is within the parent
1089 if ($args{revrec} eq 'y') {
1090 my $tmpip = NetAddr::IP->new(${$args{val}});
1091 my $pname = $self->revName($args{id});
1092 return ('FAIL',"${$args{val}} not within $pname")
1093 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
1094 # Normalize
1095 ${$args{val}} = "$tmpip";
1096 } else {
1097 my $pname = $self->domainName($args{id});
1098 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
1099 }
1100 } else {
1101 return ('FAIL',"Delegation records are not permitted in default record sets");
1102 }
1103 return ('OK','OK');
1104}
1105
1106
1107##
1108## Record data substitution subs
1109##
1110
1111# Replace ZONE in hostname, or create (most of) the actual proper zone name
1112sub _ZONE {
1113 my $zone = shift;
1114 my $string = shift;
1115 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
1116 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
1117
1118 my $prefix;
1119
1120 $string =~ s/,/./ if !$zone->{isv6};
1121 $string =~ s/,/::/ if $zone->{isv6};
1122
1123 # Subbing ZONE in the host. We need to properly ID the netblock range
1124 # The subbed text should have "network IP with trailing zeros stripped" for
1125 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
1126 # For blocks that do NOT line up on these boundaries, we take the most
1127 # significant octet or 16-bit chunk of the "broadcast" IP and append it
1128 # after a double-dash
1129 # ie:
1130 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1131 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1132 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1133 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1134 # Similar for v6
1135
1136 if (!$zone->{isv6}) { # IPv4
1137
1138 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1139 # a funky subnet that had host bits set.
1140 my $bc = $zone->broadcast->addr;
1141
1142 if ($zone->masklen > 24) {
1143 $bc =~ s/^\d+\.\d+\.\d+\.//;
1144 } elsif ($zone->masklen > 16) {
1145 $prefix =~ s/\.0$//;
1146 $bc =~ s/^\d+\.\d+\.//;
1147 } elsif ($zone->masklen > 8) {
1148 $bc =~ s/^\d+\.//;
1149 $prefix =~ s/\.0\.0$//;
1150 } else {
1151 $prefix =~ s/\.0\.0\.0$//;
1152 }
1153 if ($zone->masklen % 8) {
1154 $bc =~ s/(\.255)+$//;
1155 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1156 }
1157 if ($fr eq 'f') {
1158 $prefix =~ s/\.+/$sep/g;
1159 } else {
1160 $prefix = join($sep, reverse(split(/\./, $prefix)));
1161 }
1162
1163 } else { # IPv6
1164
1165 if ($fr eq 'f') {
1166
1167 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1168 # a funky subnet that had host bits set.
1169 my $bc = $zone->broadcast->addr;
1170 if (($zone->masklen % 16) != 0) {
1171 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1172 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1173 $prefix =~ s/:0$//;
1174 $bc =~ s/:ffff$//;
1175 }
1176 # Strip the leading 16-bit chunks off the front of the broadcast IP
1177 $bc =~ s/^([a-f0-9]+:)+//;
1178 # Append the remaining 16-bit chunk to the prefix after "--"
1179 $prefix .= "--$bc";
1180 } else {
1181 # Strip off :0 from the end until we reach the netblock length.
1182 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1183 $prefix =~ s/:0$//;
1184 }
1185 }
1186 # Actually deal with the separator
1187 $prefix =~ s/:/$sep/g;
1188
1189 } else { # $fr eq 'f'
1190
1191 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1192 # a funky subnet that had host bits set.
1193 my $bc = $zone->broadcast->full;
1194 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1195 $bc =~ s/://g;
1196 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1197 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1198 $prefix =~ s/0$//;
1199 $bc =~ s/f$//;
1200 }
1201 # Split and reverse the order of the nibbles in the network/broadcast IPs
1202 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1203 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1204 my @nbits = reverse split //, $prefix;
1205 my @bbits = reverse split //, $bc;
1206 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1207 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1208 # Glue it back together
1209 $prefix = join($sep, @nbits);
1210
1211 } # $fr ne 'f'
1212
1213 } # $zone->{isv6}
1214
1215 # Do the substitution, finally
1216 $string =~ s/ZONE/$prefix/;
1217 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1218 return $string;
1219} # done _ZONE()
1220
1221# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1222# given the .arpa zone name, return the CIDR netblock the zone is for.
1223# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1224# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1225# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1226sub _zone2cidr {
1227 my $zone = shift;
1228
1229 my $cidr;
1230 my $tmpcidr;
1231 my $warnmsg = '';
1232
1233 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1234 # v4 revzone, formal zone name type
1235 my $tmpzone = $zone;
1236 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name [$tmpzone]")
1237 if $tmpzone !~ m{^(?:\d+[/-])?[\d\.]+\.in-addr\.arpa\.?$};
1238 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1239
1240 # Snag the octet pieces
1241 my @octs = split /\./, $tmpzone;
1242
1243 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1244 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1245 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1246 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1247 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1248 );
1249
1250 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1251 # Need to take the size of the range to offset the basic octet-based mask length,
1252 # and make sure the first number in the range gets used as the network address for the block
1253 # Alternate form: The second number is actually the real netmask, not the end of the range.
1254 my $masklen = 0;
1255 if ($octs[0] =~ m{^((\d+)[/-](\d+))$}) { # take the range...
1256 if (24 < $3 && $3 < 31) {
1257 # we have a real netmask
1258 $masklen = -$maskmap{$3};
1259 } else {
1260 # we have a range. NB: only real CIDR ranges are supported
1261 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1262 }
1263 $octs[0] = $2; # set the base octet of the range...
1264 }
1265 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1266
1267# arguably we should only allow sub-octet range/mask in-addr.arpa
1268# specifications in the least significant octet, but the code is
1269# simpler if we deal with sub-octet delegations at any level.
1270
1271 # Now we find the "true" mask with the aid of the "base" calculated above
1272 if ($#octs == 0) {
1273 $masklen += 8;
1274 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1275 } elsif ($#octs == 1) {
1276 $masklen += 16;
1277 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1278 } elsif ($#octs == 2) {
1279 $masklen += 24;
1280 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1281 } else {
1282 $masklen += 32;
1283 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1284 }
1285
1286 } elsif ($zone =~ /\.ip6\.arpa\.?$/) {
1287 # v6 revzone, formal zone name type
1288 my $tmpzone = $zone;
1289##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1290 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name [$tmpzone]")
1291 if $tmpzone !~ /^[a-fA-F\d\.]+\.ip6\.arpa\.?$/;
1292 $tmpzone =~ s/\.ip6\.arpa\.?//;
1293 my @quads = reverse(split(/\./, $tmpzone));
1294 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1295 my $nc;
1296 foreach (@quads) {
1297 $tmpcidr .= $_;
1298 $tmpcidr .= ":" if ++$nc % 4 == 0 && $nc < $#quads;
1299 }
1300 my $nq = 1 if $nc % 4 != 0;
1301 my $mask = $nc * 4; # need to do this here because we probably increment it below
1302 while ($nc++ % 4 != 0) {
1303 $tmpcidr .= "0";
1304 }
1305 # polish it off with trailing ::/mask if this is a CIDR block instead of an IP
1306 $tmpcidr .= "::/$mask" if $mask != 128;
1307 }
1308
1309 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1310 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1311 unless $cidr = NetAddr::IP->new($tmpcidr);
1312
1313 if ($warnmsg) {
1314 $errstr = $warnmsg;
1315 return ('WARN', $cidr);
1316 }
1317 return ('OK', $cidr);
1318##fixme: use wantarray() to decide what to return?
1319} # done _zone2cidr()
1320
1321# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1322# really have a sane way to handle this type of expansion at the moment
1323# due to the size of the address space.
1324# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1325sub _template4_expand {
1326 my $tmpl = shift;
1327 my $ip = shift;
1328
1329 my @ipparts = split /\./, $ip;
1330 my @iphex;
1331 my @ippad;
1332 for (@ipparts) {
1333 push @iphex, sprintf("%x", $_);
1334 push @ippad, sprintf("%0.3u", $_);
1335 }
1336
1337 # IP substitutions in template records:
1338 #major patterns:
1339 #dashed IP, forward and reverse
1340 #underscoreed IP, forward and reverse
1341 #dotted IP, forward and reverse (even if forward is... dumb)
1342 # -> %r for reverse, %i for forward, leading -, _, or . to indicate separator, defaults to -
1343 # %r or %-r => %4d-%3d-%2d-%1d
1344 # %_r => %4d_%3d_%2d_%1d
1345 # %.r => %4d.%3d.%2d.%1d
1346 # %i or %-i => %1d-%2d-%3d-%4d
1347 # %_i => %1d_%2d_%3d_%4d
1348 # %.i => %1d.%2d.%3d.%4d
1349 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1350 $$tmpl =~ s/\%([-._])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1351 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1352 $$tmpl =~ s/\%([-._])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1353
1354 #hex-coded IP
1355 # %h
1356 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1357
1358 #IP as decimal-coded 32-bit value
1359 # %d
1360 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1361 $$tmpl =~ s/\%d/$iptmp/g;
1362
1363 #minor patterns (per-octet)
1364 # %[1234][dh0]
1365 #octet
1366 #hex-coded octet
1367 #0-padded octet
1368 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1369 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1370 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1371} # _template4_expand()
1372
1373# Broad syntactic check on the hostname. Checks for valid characters, correctly-expandable template patterns.
1374# Takes the hostname, type, and live/default and forward/reverse flags
1375# Returns true/false, sets errstr on failures
1376sub _check_hostname_form {
1377 my ($hname,$rectype,$defrec,$revrec) = @_;
1378
1379 if ($hname =~ /\%/ && ($rectype == 65282 || $rectype == 65283) ) {
1380 my $tmphost = $hname;
1381 # we don't actually need to test with the real IP passed; that saves a bit of fiddling.
1382 _template4_expand(\$tmphost, '10.10.10.10');
1383 if ($tmphost =~ /\%/) {
1384 $errstr = "Invalid template $hname";
1385 return;
1386 }
1387 } elsif ($revrec eq 'y') {
1388 # Reverse zones don't support @ in hostnames
1389 # Also skip failure on revzone TXT records; the hostname contains the TXT content in that case.
1390 if ($rectype != $reverse_typemap{TXT} && lc($hname) !~ /^[0-9a-z_.-]+$/) {
1391 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1392 return;
1393 }
1394 } else {
1395 if (lc($hname) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+|@)$/) {
1396 # Don't mention @, because it would be far too wordy to explain the nuance of @
1397 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1398 return;
1399 }
1400 }
1401 return 1;
1402} # _check_hostname_form()
1403
1404
1405##
1406## Initialization and cleanup subs
1407##
1408
1409## DNSDB::__cfgload()
1410# Private sub to parse a config file and load it into %config
1411# Takes a filename and a hashref to put the parsed entries in
1412sub __cfgload {
1413 $errstr = '';
1414 my $cfgfile = shift;
1415 my $cfg = shift;
1416
1417 if (open CFG, "<$cfgfile") {
1418 while (<CFG>) {
1419 chomp;
1420 s/^\s*//;
1421 next if /^#/;
1422 next if /^$/;
1423# hmm. more complex bits in this file might require [heading] headers, maybe?
1424# $mode = $1 if /^\[(a-z)+]/;
1425 # DB connect info
1426 $cfg->{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1427 $cfg->{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1428 $cfg->{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1429 $cfg->{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1430 # Mail settings
1431 $cfg->{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1432 $cfg->{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1433 $cfg->{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1434 $cfg->{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1435 $cfg->{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1436 $cfg->{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1437 # session - note this is fed directly to CGI::Session
1438 $cfg->{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1439 $cfg->{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1440 # misc
1441 $cfg->{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1442 $cfg->{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1443 $cfg->{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1444 $cfg->{usecache} = $1 if m{^usecache\s*=\s*([a-z01]+)}i;
1445 $cfg->{force_refresh} = $1 if /^force_refresh\s*=\s*([a-z01]+)/i;
1446 $cfg->{lowercase} = $1 if /^lowercase\s*=\s*([a-z01]+)/i;
1447 $cfg->{showrev_arpa} = $1 if /^showrev_arpa\s*=\s*([a-z]+)/i;
1448# not supported in dns.cgi yet
1449# $cfg->{templatedir} = $1 if m{^templatedir\s*=\s*([a-z0-9/_.-]+)}i;
1450# $cfg->{templateoverride} = $1 if m{^templateoverride\s*=\s*([a-z0-9/_.-]+)}i;
1451 # RPC options
1452 $cfg->{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1453 $cfg->{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1454 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1455 my @ips = split /[,\s]+/, $tmp;
1456 my $rpcsys = shift @ips;
1457 push @{$cfg->{rpcacl}{$rpcsys}}, @ips;
1458 }
1459 }
1460 close CFG;
1461 } else {
1462 $errstr = "Couldn't load configuration file $cfgfile: $!";
1463 return;
1464 }
1465 return 1;
1466} # end __cfgload()
1467
1468
1469## DNSDB::connectDB()
1470# Creates connection to DNS database.
1471# Requires the database name, username, and password.
1472# Returns a handle to the db or undef on failure.
1473# Set up for a PostgreSQL db; could be any transactional DBMS with the
1474# right changes.
1475# Called by new(); not intended to be called publicly.
1476sub connectDB {
1477 $errstr = '';
1478 my $dbname = shift;
1479 my $user = shift;
1480 my $pass = shift;
1481 my $dbh;
1482 my $DSN = "DBI:Pg:dbname=$dbname";
1483
1484 my $host = shift;
1485 $DSN .= ";host=$host" if $host;
1486
1487# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1488# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1489 $dbh = DBI->connect($DSN, $user, $pass, {
1490 AutoCommit => 1,
1491 PrintError => 0
1492 });
1493 if (!$dbh) {
1494 $errstr = $DBI::errstr;
1495 return;
1496 }
1497#) if(!$dbh);
1498
1499 local $dbh->{RaiseError} = 1;
1500
1501 eval {
1502##fixme: initialize the DB if we can't find the table (since, by definition, there's
1503# nothing there if we can't select from it...)
1504 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1505 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1506# return (undef,$DBI::errstr) if $dbh->err;
1507
1508#if ($tblcount == 0) {
1509# # create tables one at a time, checking for each.
1510# return (undef, "check table misc missing");
1511#}
1512
1513# Return here if we can't select.
1514# This should retrieve the dbversion key.
1515 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1516 $sth->execute();
1517# return (undef,$DBI::errstr) if ($sth->err);
1518
1519##fixme: do stuff to the DB on version mismatch
1520# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1521# DB should be downward-compatible; column defaults should give sane (if possibly
1522# useless-and-needs-help) values in columns an older software stack doesn't know about.
1523
1524# See if the select returned anything (or null data). This should
1525# succeed if the select executed, but...
1526 $sth->fetchrow();
1527# return (undef,$DBI::errstr) if ($sth->err);
1528
1529 $sth->finish;
1530
1531 }; # wrapped DB checks
1532 if ($@) {
1533 $errstr = $@;
1534 return;
1535 }
1536
1537# If we get here, we should be OK.
1538 return $dbh;
1539} # end connectDB
1540
1541
1542## DNSDB::finish()
1543# Cleans up after database handles and so on.
1544# Requires a database handle
1545sub finish {
1546 my $self = shift;
1547 $self->{dbh}->disconnect;
1548} # end finish
1549
1550
1551## DNSDB::initGlobals()
1552# Initialize global variables
1553# NB: this does NOT include web-specific session variables!
1554sub initGlobals {
1555 my $self = shift;
1556 my $dbh = $self->{dbh};
1557
1558# load record types from database
1559 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1560 $sth->execute;
1561 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1562 $typemap{$recval} = $recname;
1563 $reverse_typemap{$recname} = $recval;
1564 # now we fill the record validation function hash
1565 if ($stdflag < 5) {
1566 my $fn = "_validate_$recval";
1567 $validators{$recval} = \&$fn;
1568 } else {
1569 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1570 $validators{$recval} = eval $fn;
1571 }
1572 }
1573} # end initGlobals
1574
1575
1576## DNSDB::initRPC()
1577# Takes a remote username and remote fullname.
1578# Sets up the RPC logging-pseudouser if needed.
1579# Sets the %userdata hash for logging.
1580# Returns undef on failure
1581sub initRPC {
1582 my $self = shift;
1583 my $dbh = $self->{dbh};
1584 my %args = @_;
1585
1586 return if !$args{username};
1587 return if !$args{fullname};
1588
1589 $args{username} = "$args{username}/$args{rpcsys}";
1590
1591 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1592 " FROM users WHERE username=?", undef, ($args{username}) );
1593 if (!$tmpuser) {
1594 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1595 ($args{username}, $args{fullname}) );
1596 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1597 " FROM users WHERE username=?", undef, ($args{username}) );
1598 }
1599 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
1600 $self->{loguserid} = $tmpuser->{userid};
1601 $self->{logusername} = $tmpuser->{username};
1602 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
1603 return 1 if $tmpuser;
1604} # end initRPC()
1605
1606
1607## DNSDB::login()
1608# Takes a database handle, username and password
1609# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1610# password matches the one on file, and account is not disabled
1611# Returns undef otherwise
1612sub login {
1613 my $self = shift;
1614 my $dbh = $self->{dbh};
1615 my $user = shift;
1616 my $pass = shift;
1617
1618 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1619 " FROM users WHERE username=?",
1620 undef, ($user) );
1621 return if !$userinfo;
1622 return if !$userinfo->{status};
1623
1624 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1625 # native passwords (crypt-md5)
1626 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1627 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1628 # VegaDNS import (hex-coded MD5)
1629 return if $userinfo->{password} ne md5_hex($pass);
1630 } else {
1631 # plaintext (convenient now and then)
1632 return if $userinfo->{password} ne $pass;
1633 }
1634
1635 return $userinfo;
1636} # end login()
1637
1638
1639## DNSDB::initActionLog()
1640# Set up action logging. Takes a database handle and user ID
1641# Sets some internal globals and Does The Right Thing to set up a logging channel.
1642# This sets up _log() to spew out log entries to the defined channel without worrying
1643# about having to open a file or a syslog channel
1644##fixme Need to call _initActionLog_blah() for various logging channels, configured
1645# via dnsdb.conf, in $self->{log_channel} or something
1646# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1647sub initActionLog {
1648 my $self = shift;
1649 my $dbh = $self->{dbh};
1650 my $uid = shift;
1651
1652 return if !$uid;
1653
1654 # snag user info for logging. there's got to be a way to not have to pass this back
1655 # and forth from a caller, but web usage means no persistence we can rely on from
1656 # the server side.
1657 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1658 " FROM users WHERE user_id=?", undef, ($uid));
1659##fixme: errors are unpossible!
1660
1661 $self->{logusername} = $username;
1662 $self->{loguserid} = $uid;
1663 $self->{logfullname} = $fullname;
1664
1665 # convert to real check once we have other logging channels
1666 # if ($self->{log_channel} eq 'sql') {
1667 # Open Log, Sez Me!
1668 # }
1669
1670} # end initActionLog
1671
1672
1673## DNSDB::getPermissions()
1674# Get permissions from DB
1675# Requires DB handle, group or user flag, ID, and hashref.
1676sub getPermissions {
1677 my $self = shift;
1678 my $dbh = $self->{dbh};
1679
1680 my $type = shift;
1681 my $id = shift;
1682 my $hash = shift;
1683
1684 my $sql = qq(
1685 SELECT
1686 p.admin,p.self_edit,
1687 p.group_create,p.group_edit,p.group_delete,
1688 p.user_create,p.user_edit,p.user_delete,
1689 p.domain_create,p.domain_edit,p.domain_delete,
1690 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1691 p.location_create,p.location_edit,p.location_delete,p.location_view
1692 FROM permissions p
1693 );
1694 if ($type eq 'group') {
1695 $sql .= qq(
1696 JOIN groups g ON g.permission_id=p.permission_id
1697 WHERE g.group_id=?
1698 );
1699 } else {
1700 $sql .= qq(
1701 JOIN users u ON u.permission_id=p.permission_id
1702 WHERE u.user_id=?
1703 );
1704 }
1705
1706 my $sth = $dbh->prepare($sql);
1707
1708##fixme? we don't trap other plain SELECT errors
1709 $sth->execute($id);
1710
1711# my $permref = $sth->fetchrow_hashref;
1712# return $permref;
1713# $hash = $permref;
1714# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1715 ($hash->{admin},$hash->{self_edit},
1716 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1717 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1718 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1719 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1720 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1721 ) = $sth->fetchrow_array;
1722
1723} # end getPermissions()
1724
1725
1726## DNSDB::changePermissions()
1727# Update an ACL entry
1728# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1729sub changePermissions {
1730 my $self = shift;
1731 my $dbh = $self->{dbh};
1732 my $type = shift;
1733 my $id = shift;
1734 my $newperms = shift;
1735 my $inherit = shift || 0;
1736
1737 my $resultmsg = '';
1738
1739 # see if we're switching from inherited to custom. for bonus points,
1740 # snag the permid and parent permid anyway, since we'll need the permid
1741 # to set/alter custom perms, and both if we're switching from custom to
1742 # inherited.
1743 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1744 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1745 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1746 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1747 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1748 $sth->execute($id);
1749
1750 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1751
1752# hack phtoui
1753# group id 1 is "special" in that it's it's own parent (err... possibly.)
1754# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1755 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1756
1757 local $dbh->{AutoCommit} = 0;
1758 local $dbh->{RaiseError} = 1;
1759
1760 # Wrap all the SQL in a transaction
1761 eval {
1762 if ($inherit) {
1763
1764 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1765 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1766 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1767
1768 } else {
1769
1770 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1771##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1772# ... if'n'when we have groups with fully inherited permissions.
1773 # SQL is coo
1774 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1775 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1776 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1777 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1778 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1779 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1780 }
1781
1782 # and now set the permissions we were passed
1783 foreach (@permtypes) {
1784 if (defined ($newperms->{$_})) {
1785 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1786 }
1787 }
1788
1789 } # (inherited->)? custom
1790
1791 if ($type eq 'user') {
1792 $resultmsg = "Updated permissions for user $name";
1793 } else {
1794 $resultmsg = "Updated default permissions for group $name";
1795 }
1796 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
1797 $dbh->commit;
1798 }; # end eval
1799 if ($@) {
1800 my $msg = $@;
1801 eval { $dbh->rollback; };
1802 return ('FAIL',"Error changing permissions: $msg");
1803 }
1804
1805 return ('OK',$resultmsg);
1806} # end changePermissions()
1807
1808
1809## DNSDB::comparePermissions()
1810# Compare two permission hashes
1811# Returns '>', '<', '=', '!'
1812sub comparePermissions {
1813 my $self = shift;
1814 my $p1 = shift;
1815 my $p2 = shift;
1816
1817 my $retval = '='; # assume equality until proven otherwise
1818
1819 no warnings "uninitialized";
1820
1821 foreach (@permtypes) {
1822 next if $p1->{$_} == $p2->{$_}; # equal is good
1823 if ($p1->{$_} && !$p2->{$_}) {
1824 if ($retval eq '<') { # if we've already found an unequal pair where
1825 $retval = '!'; # $p2 has more access, and we now find a pair
1826 last; # where $p1 has more access, the overall access
1827 } # is neither greater or lesser, it's unequal.
1828 $retval = '>';
1829 }
1830 if (!$p1->{$_} && $p2->{$_}) {
1831 if ($retval eq '>') { # if we've already found an unequal pair where
1832 $retval = '!'; # $p1 has more access, and we now find a pair
1833 last; # where $p2 has more access, the overall access
1834 } # is neither greater or lesser, it's unequal.
1835 $retval = '<';
1836 }
1837 }
1838 return $retval;
1839} # end comparePermissions()
1840
1841
1842## DNSDB::changeGroup()
1843# Change group ID of an entity
1844# Takes a database handle, entity type, entity ID, and new group ID
1845sub changeGroup {
1846 my $self = shift;
1847 my $dbh = $self->{dbh};
1848 my $type = shift;
1849 my $id = shift;
1850 my $newgrp = shift;
1851
1852##fixme: fail on not enough args
1853 #return ('FAIL', "Missing
1854
1855 return ('FAIL', "Can't change the group of a $type")
1856 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1857
1858 # Collect some names for logging and messages
1859 my $entname;
1860 if ($type eq 'domain') {
1861 $entname = $self->domainName($id);
1862 } elsif ($type eq 'revzone') {
1863 $entname = $self->revName($id);
1864 } elsif ($type eq 'user') {
1865 $entname = $self->userFullName($id, '%u');
1866 } elsif ($type eq 'group') {
1867 $entname = $self->groupName($id);
1868 }
1869
1870 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1871 undef, ($id));
1872 my $oldgname = $self->groupName($oldgid);
1873 my $newgname = $self->groupName($newgrp);
1874
1875 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1876
1877 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1878
1879 # Allow transactions, and raise an exception on errors so we can catch it later.
1880 # Use local to make sure these get "reset" properly on exiting this block
1881 local $dbh->{AutoCommit} = 0;
1882 local $dbh->{RaiseError} = 1;
1883
1884 eval {
1885 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1886 # Log the change in both the old and new groups
1887 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
1888 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
1889 $dbh->commit;
1890 };
1891 if ($@) {
1892 my $msg = $@;
1893 eval { $dbh->rollback; };
1894 if ($self->{log_failures}) {
1895 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
1896 $dbh->commit; # since we enabled transactions earlier
1897 }
1898 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1899 }
1900
1901 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1902} # end changeGroup()
1903
1904
1905##
1906## Processing subs
1907##
1908
1909## DNSDB::addDomain()
1910# Add a domain
1911# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1912# and user info hash (for logging).
1913# Returns a status code and message
1914sub addDomain {
1915 $errstr = '';
1916 my $self = shift;
1917 my $dbh = $self->{dbh};
1918 my $domain = shift;
1919 return ('FAIL',"Domain must not be blank\n") if !$domain;
1920 my $group = shift;
1921 return ('FAIL',"Group must be specified\n") if !defined($group);
1922 my $state = shift;
1923 return ('FAIL',"Domain status must be specified\n") if !defined($state);
1924 my $defloc = shift || '';
1925
1926 $state = 1 if $state =~ /^active$/;
1927 $state = 1 if $state =~ /^on$/;
1928 $state = 0 if $state =~ /^inactive$/;
1929 $state = 0 if $state =~ /^off$/;
1930
1931 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1932
1933 $domain = lc($domain) if $self->{lowercase};
1934
1935 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1936
1937 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
1938 my $dom_id;
1939
1940# quick check to start to see if we've already got one
1941 $sth->execute($domain);
1942 ($dom_id) = $sth->fetchrow_array;
1943
1944 return ('FAIL', "Domain already exists") if $dom_id;
1945
1946 # Allow transactions, and raise an exception on errors so we can catch it later.
1947 # Use local to make sure these get "reset" properly on exiting this block
1948 local $dbh->{AutoCommit} = 0;
1949 local $dbh->{RaiseError} = 1;
1950
1951 # Wrap all the SQL in a transaction
1952 eval {
1953 # insert the domain...
1954 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,?,?)", undef,
1955 ($domain, $group, $state, $defloc));
1956
1957 # get the ID...
1958 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1959 undef, ($domain));
1960
1961 $self->_log(domain_id => $dom_id, group_id => $group,
1962 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
1963
1964 # ... and now we construct the standard records from the default set. NB: group should be variable.
1965 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1966 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl,location)".
1967 " VALUES ($dom_id,?,?,?,?,?,?,?,?)");
1968 $sth->execute($group);
1969 while (my ($host, $type, $val, $dist, $weight, $port, $ttl) = $sth->fetchrow_array()) {
1970 $host =~ s/DOMAIN/$domain/g;
1971 $val =~ s/DOMAIN/$domain/g;
1972 $sth_in->execute($host, $type, $val, $dist, $weight, $port, $ttl, $defloc);
1973 if ($typemap{$type} eq 'SOA') {
1974 my @tmp1 = split /:/, $host;
1975 my @tmp2 = split /:/, $val;
1976 $self->_log(domain_id => $dom_id, group_id => $group,
1977 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1978 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
1979 } else {
1980 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1981 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1982 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1983 $self->_log(domain_id => $dom_id, group_id => $group,
1984 entry => $logentry." $val', TTL $ttl");
1985 }
1986 }
1987
1988 # once we get here, we should have suceeded.
1989 $dbh->commit;
1990 }; # end eval
1991
1992 if ($@) {
1993 my $msg = $@;
1994 eval { $dbh->rollback; };
1995 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
1996 if $self->{log_failures};
1997 $dbh->commit; # since we enabled transactions earlier
1998 return ('FAIL',$msg);
1999 } else {
2000 return ('OK',$dom_id);
2001 }
2002} # end addDomain
2003
2004
2005## DNSDB::delZone()
2006# Delete a forward or reverse zone.
2007# Takes a database handle, zone ID, and forward/reverse flag.
2008# for now, just delete the records, then the domain.
2009# later we may want to archive it in some way instead (status code 2, for example?)
2010sub delZone {
2011 my $self = shift;
2012 my $dbh = $self->{dbh};
2013 my $zoneid = shift;
2014 my $revrec = shift;
2015
2016 # Allow transactions, and raise an exception on errors so we can catch it later.
2017 # Use local to make sure these get "reset" properly on exiting this block
2018 local $dbh->{AutoCommit} = 0;
2019 local $dbh->{RaiseError} = 1;
2020
2021 my $msg = '';
2022 my $failmsg = '';
2023 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
2024
2025 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
2026
2027 # Set this up here since we may use if if $self->{log_failures} is enabled
2028 my %loghash;
2029 $loghash{domain_id} = $zoneid if $revrec eq 'n';
2030 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
2031 $loghash{group_id} = $self->parentID(
2032 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
2033
2034 # Wrap all the SQL in a transaction
2035 eval {
2036 # Disentangle custom record types before removing the
2037 # ones that are only in the zone to be deleted
2038 if ($revrec eq 'n') {
2039 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2040 $failmsg = "Failure converting multizone types to single-zone";
2041 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2042 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2043 $sth->execute(65282, $zoneid, 65283);
2044 $sth->execute(65282, $zoneid, 65284);
2045 $failmsg = "Failure removing domain records";
2046 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2047 $failmsg = "Failure removing domain";
2048 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2049 } else {
2050 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2051 $failmsg = "Failure converting multizone types to single-zone";
2052 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2053 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2054# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2055# $sth->execute(65286?, $zoneid, 65283);
2056# $sth->execute(65286?, $zoneid, 65284);
2057 $failmsg = "Failure removing reverse records";
2058 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2059 $failmsg = "Failure removing reverse zone";
2060 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2061 }
2062
2063 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2064 $loghash{entry} = $msg;
2065 $self->_log(%loghash);
2066
2067 # once we get here, we should have suceeded.
2068 $dbh->commit;
2069 }; # end eval
2070
2071 if ($@) {
2072 $msg = $@;
2073 eval { $dbh->rollback; };
2074 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2075 if ($self->{log_failures}) {
2076 $self->_log(%loghash);
2077 $dbh->commit; # since we enabled transactions earlier
2078 }
2079 return ('FAIL', $loghash{entry});
2080 } else {
2081 return ('OK', $msg);
2082 }
2083
2084} # end delZone()
2085
2086
2087## DNSDB::domainName()
2088# Return the domain name based on a domain ID
2089# Takes a database handle and the domain ID
2090# Returns the domain name or undef on failure
2091sub domainName {
2092 $errstr = '';
2093 my $self = shift;
2094 my $dbh = $self->{dbh};
2095 my $domid = shift;
2096 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2097 $errstr = $DBI::errstr if !$domname;
2098 return $domname if $domname;
2099} # end domainName()
2100
2101
2102## DNSDB::revName()
2103# Return the reverse zone name based on an rDNS ID
2104# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2105# instead of the formal .arpa zone name
2106# Returns the reverse zone name or undef on failure
2107sub revName {
2108 $errstr = '';
2109 my $self = shift;
2110 my $dbh = $self->{dbh};
2111 my $revid = shift;
2112 my $cidrflag = shift || 'n';
2113 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2114 $errstr = $DBI::errstr if !$revname;
2115 my $tmp = new NetAddr::IP $revname;
2116 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2117 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2118 return $revname if $revname;
2119} # end revName()
2120
2121
2122## DNSDB::domainID()
2123# Takes a database handle and domain name
2124# Returns the domain ID number
2125sub domainID {
2126 $errstr = '';
2127 my $self = shift;
2128 my $dbh = $self->{dbh};
2129 my $domain = shift;
2130 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2131 undef, ($domain) );
2132 if (!$domid) {
2133 if ($dbh->err) {
2134 $errstr = $DBI::errstr;
2135 } else {
2136 $errstr = "Domain $domain not present";
2137 }
2138 }
2139 return $domid if $domid;
2140} # end domainID()
2141
2142
2143## DNSDB::revID()
2144# Takes a database handle and reverse zone name
2145# Returns the rDNS ID number
2146sub revID {
2147 $errstr = '';
2148 my $self = shift;
2149 my $dbh = $self->{dbh};
2150 my $revzone = shift;
2151 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2152 if (!$revid) {
2153 if ($dbh->err) {
2154 $errstr = $DBI::errstr;
2155 } else {
2156 $errstr = "Reverse zone $revzone not present";
2157 }
2158 }
2159 return $revid if $revid;
2160} # end revID()
2161
2162
2163## DNSDB::addRDNS
2164# Adds a reverse DNS zone
2165# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2166# and boolean(ish) state (active/inactive)
2167# Returns a status code and message
2168sub addRDNS {
2169 my $self = shift;
2170 my $dbh = $self->{dbh};
2171 my $zone = shift;
2172
2173 # Autodetect formal .arpa zones
2174 if ($zone =~ /\.arpa\.?$/) {
2175 my $code;
2176 ($code,$zone) = _zone2cidr($zone);
2177 return ('FAIL', $zone) if $code eq 'FAIL';
2178 }
2179 $zone = NetAddr::IP->new($zone);
2180
2181 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2182 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2183 my $group = shift;
2184 my $state = shift;
2185 my $defloc = shift || '';
2186
2187 $state = 1 if $state =~ /^active$/;
2188 $state = 1 if $state =~ /^on$/;
2189 $state = 0 if $state =~ /^inactive$/;
2190 $state = 0 if $state =~ /^off$/;
2191
2192 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2193
2194# quick check to start to see if we've already got one
2195 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2196
2197 return ('FAIL', "Zone already exists") if $rdns_id;
2198
2199 # Allow transactions, and raise an exception on errors so we can catch it later.
2200 # Use local to make sure these get "reset" properly on exiting this block
2201 local $dbh->{AutoCommit} = 0;
2202 local $dbh->{RaiseError} = 1;
2203
2204 my $warnstr = '';
2205 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2206 # wrong, we should have a value to override this anyway.
2207
2208 # Wrap all the SQL in a transaction
2209 eval {
2210 # insert the zone...
2211 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2212 ($zone, $group, $state, $defloc) );
2213
2214 # get the ID...
2215 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2216
2217 $self->_log(rdns_id => $rdns_id, group_id => $group,
2218 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2219
2220 # ... and now we construct the standard records from the default set. NB: group should be variable.
2221 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2222 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2223 " VALUES ($rdns_id,?,?,?,?,?,?)");
2224 $sth->execute($group);
2225 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2226 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2227 if ($zone->{isv6}) {
2228 next if ($type == 65280 || $type == 65283);
2229 } else {
2230 next if ($type == 65281 || $type == 65284);
2231 }
2232
2233 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2234
2235 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2236 # On failure, tack a note on to a warning string and continue without adding this record.
2237 # While we're at it, we substitute $zone for ZONE in the value.
2238 if ($val eq 'ZONE') {
2239 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2240 next if $revpatt && ($type == 65282 || $type == 65283);
2241##fixme? do we care if we have multiple whole-zone templates?
2242 $val = $zone->network;
2243 } elsif ($val =~ /ZONE/) {
2244 my $tmpval = $val;
2245 $tmpval =~ s/ZONE//;
2246 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2247 # as either v4 or v6. May make this an off-by-default config flag
2248 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2249 if ($type == 12 || $type == 65282) {
2250 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2251 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2252 }
2253 my $addr;
2254 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2255 $val = $addr->addr;
2256 } else {
2257 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2258 next;
2259 }
2260 }
2261
2262 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2263 # NS records get this substitution on the value instead.
2264 $host = _ZONE($zone, $host) if $type != 2;
2265
2266 # Fill in the forward domain ID if we can find it, otherwise:
2267 # Coerce type down to PTR or PTR template if we can't
2268 my $domid = 0;
2269 if ($type >= 65280) {
2270 if (!($domid = $self->_hostparent($host))) {
2271 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2272 $type = $reverse_typemap{PTR};
2273 $domid = 0; # just to be explicit.
2274 }
2275 }
2276
2277 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2278
2279 if ($typemap{$type} eq 'SOA') {
2280 my @tmp1 = split /:/, $host;
2281 my @tmp2 = split /:/, $val;
2282 $self->_log(rdns_id => $rdns_id, group_id => $group,
2283 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2284 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2285 $defttl = $tmp2[3];
2286 } else {
2287 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2288 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2289 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2290 }
2291 }
2292
2293 # Generate record based on provided pattern.
2294 if ($revpatt) {
2295 my $host;
2296 my $type = ($zone->{isv6} ? 65284 : 65283);
2297 my $val = $zone->network;
2298
2299 # Substitute $zone for ZONE in the hostname.
2300 $host = _ZONE($zone, $revpatt);
2301
2302 my $domid = 0;
2303 if (!($domid = $self->_hostparent($host))) {
2304 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2305 $type = 65282;
2306 $domid = 0; # just to be explicit.
2307 }
2308
2309 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2310 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2311 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2312 entry => $logentry." $val', TTL $defttl from pattern");
2313 }
2314
2315 # If there are warnings (presumably about default records skipped for cause) log them
2316 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2317 if $warnstr;
2318
2319 # once we get here, we should have suceeded.
2320 $dbh->commit;
2321 }; # end eval
2322
2323 if ($@) {
2324 my $msg = $@;
2325 eval { $dbh->rollback; };
2326 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2327 if $self->{log_failures};
2328 $dbh->commit; # since we enabled transactions earlier
2329 return ('FAIL',$msg);
2330 } else {
2331 my $retcode = 'OK';
2332 if ($warnstr) {
2333 $resultstr = $warnstr;
2334 $retcode = 'WARN';
2335 }
2336 return ($retcode, $rdns_id);
2337 }
2338
2339} # end addRDNS()
2340
2341
2342## DNSDB::getZoneCount
2343# Get count of zones in group or groups
2344# Takes a database handle and hash containing:
2345# - the "current" group
2346# - an array of "acceptable" groups
2347# - a flag for forward/reverse zones
2348# - Optionally accept a "starts with" and/or "contains" filter argument
2349# Returns an integer count of the resulting zone list.
2350sub getZoneCount {
2351 my $self = shift;
2352 my $dbh = $self->{dbh};
2353
2354 my %args = @_;
2355
2356 # Fail on bad curgroup argument. There's no sane fallback on this one.
2357 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2358 $errstr = "Bad or missing curgroup argument";
2359 return;
2360 }
2361 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2362 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2363 $errstr = "Bad childlist argument";
2364 return;
2365 }
2366
2367 my @filterargs;
2368 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2369 push @filterargs, "^$args{startwith}" if $args{startwith};
2370 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2371 push @filterargs, $args{filter} if $args{filter};
2372
2373 my $sql;
2374 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2375 if ($args{revrec} eq 'n') {
2376 $sql = "SELECT count(*) FROM domains".
2377 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2378 ($args{startwith} ? " AND domain ~* ?" : '').
2379 ($args{filter} ? " AND domain ~* ?" : '');
2380 } else {
2381 $sql = "SELECT count(*) FROM revzones".
2382 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2383 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2384# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2385 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2386 # we want to match both the formal and natural zone name
2387 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2388 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2389# } else {
2390# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2391# }
2392 }
2393 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2394 return $count;
2395} # end getZoneCount()
2396
2397
2398## DNSDB::getZoneList()
2399# Get a list of zones in the specified group(s)
2400# Takes the same arguments as getZoneCount() above
2401# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2402sub getZoneList {
2403 my $self = shift;
2404 my $dbh = $self->{dbh};
2405
2406 my %args = @_;
2407
2408 my @zonelist;
2409
2410 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2411 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2412
2413 # Fail on bad curgroup argument. There's no sane fallback on this one.
2414 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2415 $errstr = "Bad or missing curgroup argument";
2416 return;
2417 }
2418 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2419 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2420 $errstr = "Bad childlist argument";
2421 return;
2422 }
2423
2424 my @filterargs;
2425 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2426 push @filterargs, "^$args{startwith}" if $args{startwith};
2427 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2428 push @filterargs, $args{filter} if $args{filter};
2429
2430 my $sql;
2431 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2432 if ($args{revrec} eq 'n') {
2433 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2434 $sql = "SELECT domain_id AS zoneid,domain AS zone,status,groups.group_name AS group FROM domains".
2435 " INNER JOIN groups ON domains.group_id=groups.group_id".
2436 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2437 ($args{startwith} ? " AND domain ~* ?" : '').
2438 ($args{filter} ? " AND domain ~* ?" : '');
2439 } else {
2440##fixme: arguably startwith here is irrelevant. depends on the UI though.
2441 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2442 $sql = "SELECT rdns_id AS zoneid,revnet AS zone,status,groups.group_name AS group FROM revzones".
2443 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2444 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2445 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2446# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2447 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2448 # we want to match both the formal and natural zone name
2449 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2450 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2451# } else {
2452# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2453# }
2454 }
2455 # A common tail.
2456 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2457 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2458 " OFFSET ".$args{offset}*$self->{perpage});
2459
2460 my @working;
2461 my $zsth = $dbh->prepare($sql);
2462 $zsth->execute(@filterargs);
2463 while (my $zone = $zsth->fetchrow_hashref) {
2464 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2465 my $tmp = new NetAddr::IP $zone->{zone};
2466 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2467 }
2468 push @working, $zone;
2469 }
2470 return \@working;
2471} # end getZoneList()
2472
2473
2474## DNSDB::getZoneLocation()
2475# Retrieve the default location for a zone.
2476# Takes a database handle, forward/reverse flag, and zone ID
2477sub getZoneLocation {
2478 my $self = shift;
2479 my $dbh = $self->{dbh};
2480 my $revrec = shift;
2481 my $zoneid = shift;
2482
2483 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2484 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2485 undef, ($zoneid));
2486 return $loc;
2487} # end getZoneLocation()
2488
2489
2490## DNSDB::addGroup()
2491# Add a group
2492# Takes a database handle, group name, parent group, hashref for permissions,
2493# and optional template-vs-cloneme flag for the default records
2494# Returns a status code and message
2495sub addGroup {
2496 $errstr = '';
2497 my $self = shift;
2498 my $dbh = $self->{dbh};
2499 my $groupname = shift;
2500 my $pargroup = shift;
2501 my $permissions = shift;
2502
2503 # 0 indicates "custom", hardcoded.
2504 # Any other value clones that group's default records, if it exists.
2505 my $inherit = shift || 0;
2506##fixme: need a flag to indicate clone records or <?> ?
2507
2508 # Allow transactions, and raise an exception on errors so we can catch it later.
2509 # Use local to make sure these get "reset" properly on exiting this block
2510 local $dbh->{AutoCommit} = 0;
2511 local $dbh->{RaiseError} = 1;
2512
2513 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2514
2515 return ('FAIL', "Group already exists") if $group_id;
2516
2517 # Wrap all the SQL in a transaction
2518 eval {
2519 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2520
2521 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2522
2523 # We work through the whole set of permissions instead of specifying them so
2524 # that when we add a new permission, we don't have to change the code anywhere
2525 # that doesn't explicitly deal with that specific permission.
2526 my @permvals;
2527 foreach (@permtypes) {
2528 if (!defined ($permissions->{$_})) {
2529 push @permvals, 0;
2530 } else {
2531 push @permvals, $permissions->{$_};
2532 }
2533 }
2534 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2535 undef, ($groupid, @permvals) );
2536 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2537 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2538
2539 # Default records
2540 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2541 "VALUES ($groupid,?,?,?,?,?,?,?)");
2542 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2543 "VALUES ($groupid,?,?,?,?)");
2544 if ($inherit) {
2545 # Duplicate records from parent. Actually relying on inherited records feels
2546 # very fragile, and it would be problematic to roll over at a later time.
2547 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2548 $sth2->execute($pargroup);
2549 while (my @clonedata = $sth2->fetchrow_array) {
2550 $sthf->execute(@clonedata);
2551 }
2552 # And now the reverse records
2553 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2554 $sth2->execute($pargroup);
2555 while (my @clonedata = $sth2->fetchrow_array) {
2556 $sthr->execute(@clonedata);
2557 }
2558 } else {
2559##fixme: Hardcoding is Bad, mmmmkaaaay?
2560 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2561 # could load from a config file, but somewhere along the line we need hardcoded bits.
2562 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2563 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2564 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2565 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2566 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2567 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2568 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2569 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2570 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2571 }
2572
2573 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2574
2575 # once we get here, we should have suceeded.
2576 $dbh->commit;
2577 }; # end eval
2578
2579 if ($@) {
2580 my $msg = $@;
2581 eval { $dbh->rollback; };
2582 if ($self->{log_failures}) {
2583 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2584 $dbh->commit;
2585 }
2586 return ('FAIL',$msg);
2587 }
2588
2589 return ('OK','OK');
2590} # end addGroup()
2591
2592
2593## DNSDB::delGroup()
2594# Delete a group.
2595# Takes a group ID
2596# Returns a status code and message
2597sub delGroup {
2598 my $self = shift;
2599 my $dbh = $self->{dbh};
2600 my $groupid = shift;
2601
2602 # Allow transactions, and raise an exception on errors so we can catch it later.
2603 # Use local to make sure these get "reset" properly on exiting this block
2604 local $dbh->{AutoCommit} = 0;
2605 local $dbh->{RaiseError} = 1;
2606
2607##fixme: locate "knowable" error conditions and deal with them before the eval
2608# ... or inside, whatever.
2609# -> domains still exist in group
2610# -> ...
2611 my $failmsg = '';
2612 my $resultmsg = '';
2613
2614 # collect some pieces for logging and error messages
2615 my $groupname = $self->groupName($groupid);
2616 my $parid = $self->parentID(id => $groupid, type => 'group');
2617
2618 # Wrap all the SQL in a transaction
2619 eval {
2620 # Check for Things in the group
2621 $failmsg = "Can't remove group $groupname";
2622 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2623 die "$grpcnt groups still in group\n" if $grpcnt;
2624 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2625 die "$domcnt domains still in group\n" if $domcnt;
2626 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
2627 die "$revcnt reverse zones still in group\n" if $revcnt;
2628 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2629 die "$usercnt users still in group\n" if $usercnt;
2630
2631 $failmsg = "Failed to delete default records for $groupname";
2632 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2633 $failmsg = "Failed to delete default reverse records for $groupname";
2634 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2635 $failmsg = "Failed to remove group $groupname";
2636 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2637
2638 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
2639 $resultmsg = "Deleted group $groupname";
2640
2641 # once we get here, we should have suceeded.
2642 $dbh->commit;
2643 }; # end eval
2644
2645 if ($@) {
2646 my $msg = $@;
2647 eval { $dbh->rollback; };
2648 if ($self->{log_failures}) {
2649 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
2650 $dbh->commit; # since we enabled transactions earlier
2651 }
2652 return ('FAIL',"$failmsg: $msg");
2653 }
2654
2655 return ('OK',$resultmsg);
2656} # end delGroup()
2657
2658
2659## DNSDB::getChildren()
2660# Get a list of all groups whose parent^n is group <n>
2661# Takes a database handle, group ID, reference to an array to put the group IDs in,
2662# and an optional flag to return only immediate children or all children-of-children
2663# default to returning all children
2664# Calls itself
2665sub getChildren {
2666 $errstr = '';
2667 my $self = shift;
2668 my $dbh = $self->{dbh};
2669 my $rootgroup = shift;
2670 my $groupdest = shift;
2671 my $immed = shift || 'all';
2672
2673 # special break for default group; otherwise we get stuck.
2674 if ($rootgroup == 1) {
2675 # by definition, group 1 is the Root Of All Groups
2676 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2677 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2678 $sth->execute;
2679 while (my @this = $sth->fetchrow_array) {
2680 push @$groupdest, @this;
2681 }
2682 } else {
2683 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2684 $sth->execute($rootgroup);
2685 return if $sth->rows == 0;
2686 my @grouplist;
2687 while (my ($group) = $sth->fetchrow_array) {
2688 push @$groupdest, $group;
2689 $self->getChildren($group, $groupdest) if $immed eq 'all';
2690 }
2691 }
2692} # end getChildren()
2693
2694
2695## DNSDB::groupName()
2696# Return the group name based on a group ID
2697# Takes a database handle and the group ID
2698# Returns the group name or undef on failure
2699sub groupName {
2700 $errstr = '';
2701 my $self = shift;
2702 my $dbh = $self->{dbh};
2703 my $groupid = shift;
2704 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2705 $sth->execute($groupid);
2706 my ($groupname) = $sth->fetchrow_array();
2707 $errstr = $DBI::errstr if !$groupname;
2708 return $groupname if $groupname;
2709} # end groupName
2710
2711
2712## DNSDB::getGroupCount()
2713# Get count of subgroups in group or groups
2714# Takes a database handle and hash containing:
2715# - the "current" group
2716# - an array of "acceptable" groups
2717# - Optionally accept a "starts with" and/or "contains" filter argument
2718# Returns an integer count of the resulting group list.
2719sub getGroupCount {
2720 my $self = shift;
2721 my $dbh = $self->{dbh};
2722
2723 my %args = @_;
2724
2725 # Fail on bad curgroup argument. There's no sane fallback on this one.
2726 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2727 $errstr = "Bad or missing curgroup argument";
2728 return;
2729 }
2730 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2731 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2732 $errstr = "Bad childlist argument";
2733 return;
2734 }
2735
2736 my @filterargs;
2737 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2738 push @filterargs, "^$args{startwith}" if $args{startwith};
2739 push @filterargs, $args{filter} if $args{filter};
2740
2741 my $sql = "SELECT count(*) FROM groups ".
2742 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2743 ($args{startwith} ? " AND group_name ~* ?" : '').
2744 ($args{filter} ? " AND group_name ~* ?" : '');
2745 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2746 $errstr = $dbh->errstr if !$count;
2747 return $count;
2748} # end getGroupCount
2749
2750
2751## DNSDB::getGroupList()
2752# Get a list of sub^n-groups in the specified group(s)
2753# Takes the same arguments as getGroupCount() above
2754# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2755sub getGroupList {
2756 my $self = shift;
2757 my $dbh = $self->{dbh};
2758
2759 my %args = @_;
2760
2761 # Fail on bad curgroup argument. There's no sane fallback on this one.
2762 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2763 $errstr = "Bad or missing curgroup argument";
2764 return;
2765 }
2766 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2767 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2768 $errstr = "Bad childlist argument";
2769 return;
2770 }
2771
2772 my @filterargs;
2773 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2774 push @filterargs, "^$args{startwith}" if $args{startwith};
2775 push @filterargs, $args{filter} if $args{filter};
2776
2777 # protection against bad or missing arguments
2778 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2779 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
2780 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2781
2782 # munge sortby for columns in database
2783 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2784 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2785
2786 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
2787 FROM groups g
2788 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2789 ).
2790 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2791 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2792 ($args{filter} ? " AND g.group_name ~* ?" : '').
2793 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2794 " ORDER BY $args{sortby} $args{sortorder} ".
2795 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
2796 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2797 $errstr = $dbh->errstr if !$glist;
2798
2799 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
2800 # this means there's lots of crunching needed to trim the result set back down.
2801 # So instead we track the order of the groups, and push the counts into the
2802 # arrayref result separately.
2803##fixme: put this whole sub in a transaction? might be
2804# needed for accurate results on very busy systems.
2805##fixme: large group lists need prepared statements?
2806#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
2807#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
2808#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
2809 foreach (@{$glist}) {
2810 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
2811 $$_{nusers} = $ucnt;
2812 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
2813 $$_{ndomains} = $dcnt;
2814 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
2815 $$_{nrevzones} = $rcnt;
2816 }
2817
2818 return $glist;
2819} # end getGroupList
2820
2821
2822## DNSDB::groupID()
2823# Return the group ID based on the group name
2824# Takes a database handle and the group name
2825# Returns the group ID or undef on failure
2826sub groupID {
2827 $errstr = '';
2828 my $self = shift;
2829 my $dbh = $self->{dbh};
2830 my $group = shift;
2831 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
2832 $errstr = $DBI::errstr if !$grpid;
2833 return $grpid if $grpid;
2834} # end groupID()
2835
2836
2837## DNSDB::addUser()
2838# Add a user.
2839# Takes a DB handle, username, group ID, password, state (active/inactive).
2840# Optionally accepts:
2841# user type (user/admin) - defaults to user
2842# permissions string - defaults to inherit from group
2843# three valid forms:
2844# i - Inherit permissions
2845# c:<user_id> - Clone permissions from <user_id>
2846# C:<permission list> - Set these specific permissions
2847# first name - defaults to username
2848# last name - defaults to blank
2849# phone - defaults to blank (could put other data within column def)
2850# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2851sub addUser {
2852 $errstr = '';
2853 my $self = shift;
2854 my $dbh = $self->{dbh};
2855 my $username = shift;
2856 my $group = shift;
2857 my $pass = shift;
2858 my $state = shift;
2859
2860 return ('FAIL', "Missing one or more required entries") if !defined($state);
2861 return ('FAIL', "Username must not be blank") if !$username;
2862
2863 # Munge in some alternate state values
2864 $state = 1 if $state =~ /^active$/;
2865 $state = 1 if $state =~ /^on$/;
2866 $state = 0 if $state =~ /^inactive$/;
2867 $state = 0 if $state =~ /^off$/;
2868
2869 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2870
2871 my $permstring = shift || 'i'; # default is to inhert permissions from group
2872
2873 my $fname = shift || $username;
2874 my $lname = shift || '';
2875 my $phone = shift || ''; # not going format-check
2876
2877 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2878 my $user_id;
2879
2880# quick check to start to see if we've already got one
2881 $sth->execute($username);
2882 ($user_id) = $sth->fetchrow_array;
2883
2884 return ('FAIL', "User already exists") if $user_id;
2885
2886 # Allow transactions, and raise an exception on errors so we can catch it later.
2887 # Use local to make sure these get "reset" properly on exiting this block
2888 local $dbh->{AutoCommit} = 0;
2889 local $dbh->{RaiseError} = 1;
2890
2891 # Wrap all the SQL in a transaction
2892 eval {
2893 # insert the user... note we set inherited perms by default since
2894 # it's simple and cleans up some other bits of state
2895##fixme: need better handling of case of inherited or missing (!!) permissions entries
2896 my $sth = $dbh->prepare("INSERT INTO users ".
2897 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2898 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2899 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2900
2901 # get the ID...
2902 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2903
2904# Permissions! Gotta set'em all!
2905 die "Invalid permission string $permstring\n"
2906 if $permstring !~ /^(?:
2907 i # inherit
2908 |c:\d+ # clone
2909 # custom. no, the leading , is not a typo
2910 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
2911 )$/x;
2912# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2913 if ($permstring ne 'i') {
2914 # for cloned or custom permissions, we have to create a new permissions entry.
2915 my $clonesrc = $group;
2916 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2917 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2918 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2919 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2920 undef, ($user_id,$clonesrc) );
2921 $dbh->do("UPDATE users SET permission_id=".
2922 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2923 "WHERE user_id=?", undef, ($user_id, $user_id) );
2924 }
2925 if ($permstring =~ /^C:/) {
2926 # finally for custom permissions, we set the passed-in permissions (and unset
2927 # any that might have been brought in by the clone operation above)
2928 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2929 undef, ($user_id) );
2930 foreach (@permtypes) {
2931 if ($permstring =~ /,$_/) {
2932 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2933 } else {
2934 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2935 }
2936 }
2937 }
2938
2939 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2940
2941##fixme: add another table to hold name/email for log table?
2942
2943 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
2944 # once we get here, we should have suceeded.
2945 $dbh->commit;
2946 }; # end eval
2947
2948 if ($@) {
2949 my $msg = $@;
2950 eval { $dbh->rollback; };
2951 if ($self->{log_failures}) {
2952 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
2953 $dbh->commit; # since we enabled transactions earlier
2954 }
2955 return ('FAIL',"Error adding user $username: $msg");
2956 }
2957
2958 return ('OK',"User $username ($fname $lname) added");
2959} # end addUser
2960
2961
2962## DNSDB::getUserCount()
2963# Get count of users in group
2964# Takes a database handle and hash containing at least the current group, and optionally:
2965# - a reference list of secondary groups
2966# - a filter string
2967# - a "Starts with" string
2968sub getUserCount {
2969 my $self = shift;
2970 my $dbh = $self->{dbh};
2971
2972 my %args = @_;
2973
2974 # Fail on bad curgroup argument. There's no sane fallback on this one.
2975 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2976 $errstr = "Bad or missing curgroup argument";
2977 return;
2978 }
2979 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2980 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2981 $errstr = "Bad childlist argument";
2982 return;
2983 }
2984
2985 my @filterargs;
2986 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2987 push @filterargs, "^$args{startwith}" if $args{startwith};
2988 push @filterargs, $args{filter} if $args{filter};
2989
2990 my $sql = "SELECT count(*) FROM users ".
2991 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2992 ($args{startwith} ? " AND username ~* ?" : '').
2993 ($args{filter} ? " AND username ~* ?" : '');
2994 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2995 $errstr = $dbh->errstr if !$count;
2996 return $count;
2997} # end getUserCount()
2998
2999
3000## DNSDB::getUserList()
3001# Get list of users
3002# Takes the same arguments as getUserCount() above, plus optional:
3003# - sort field
3004# - sort order
3005# - offset/return-all-everything flag (defaults to $perpage records)
3006sub getUserList {
3007 my $self = shift;
3008 my $dbh = $self->{dbh};
3009
3010 my %args = @_;
3011
3012 # Fail on bad curgroup argument. There's no sane fallback on this one.
3013 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3014 $errstr = "Bad or missing curgroup argument";
3015 return;
3016 }
3017 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3018 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3019 $errstr = "Bad childlist argument";
3020 return;
3021 }
3022
3023 my @filterargs;
3024 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3025 push @filterargs, "^$args{startwith}" if $args{startwith};
3026 push @filterargs, $args{filter} if $args{filter};
3027
3028 # better to request sorts on "simple" names, but it means we need to map it to real columns
3029 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3030 fname => 'fname');
3031 $args{sortby} = $sortmap{$args{sortby}};
3032
3033 # protection against bad or missing arguments
3034 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3035 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3036 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3037
3038 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3039 "FROM users u ".
3040 "INNER JOIN groups g ON u.group_id=g.group_id ".
3041 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3042 ($args{startwith} ? " AND u.username ~* ?" : '').
3043 ($args{filter} ? " AND u.username ~* ?" : '').
3044 " AND NOT u.type = 'R' ".
3045 " ORDER BY $args{sortby} $args{sortorder} ".
3046 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3047 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3048 $errstr = $dbh->errstr if !$ulist;
3049 return $ulist;
3050} # end getUserList()
3051
3052
3053## DNSDB::getUserDropdown()
3054# Get a list of usernames for use in a dropdown menu.
3055# Takes a database handle, current group, and optional "tag this as selected" flag.
3056# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3057sub getUserDropdown {
3058 my $self = shift;
3059 my $dbh = $self->{dbh};
3060 my $grp = shift;
3061 my $sel = shift || 0;
3062
3063 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3064 $sth->execute($grp);
3065
3066 my @userlist;
3067 while (my ($username,$uid) = $sth->fetchrow_array) {
3068 my %row = (
3069 username => $username,
3070 uid => $uid,
3071 selected => ($sel == $uid ? 1 : 0)
3072 );
3073 push @userlist, \%row;
3074 }
3075 return \@userlist;
3076} # end getUserDropdown()
3077
3078
3079## DNSDB:: updateUser()
3080# Update general data about user
3081sub updateUser {
3082 my $self = shift;
3083 my $dbh = $self->{dbh};
3084
3085##fixme: tweak calling convention so that we can update any given bit of data
3086 my $uid = shift;
3087 my $username = shift;
3088 my $group = shift;
3089 my $pass = shift;
3090 my $state = shift;
3091 my $type = shift || 'u';
3092 my $fname = shift || $username;
3093 my $lname = shift || '';
3094 my $phone = shift || ''; # not going format-check
3095
3096 my $resultmsg = '';
3097
3098 # Munge in some alternate state values
3099 $state = 1 if $state =~ /^active$/;
3100 $state = 1 if $state =~ /^on$/;
3101 $state = 0 if $state =~ /^inactive$/;
3102 $state = 0 if $state =~ /^off$/;
3103
3104 # Allow transactions, and raise an exception on errors so we can catch it later.
3105 # Use local to make sure these get "reset" properly on exiting this block
3106 local $dbh->{AutoCommit} = 0;
3107 local $dbh->{RaiseError} = 1;
3108
3109 my $sth;
3110
3111 # Password can be left blank; if so we assume there's one on file.
3112 # Actual blank passwords are bad, mm'kay?
3113 if (!$pass) {
3114 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3115 } else {
3116 $pass = unix_md5_crypt($pass);
3117 }
3118
3119 eval {
3120 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3121 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3122 $resultmsg = "Updated user info for $username ($fname $lname)";
3123 $self->_log(group_id => $group, entry => $resultmsg);
3124 $dbh->commit;
3125 };
3126 if ($@) {
3127 my $msg = $@;
3128 eval { $dbh->rollback; };
3129 if ($self->{log_failures}) {
3130 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3131 $dbh->commit; # since we enabled transactions earlier
3132 }
3133 return ('FAIL',"Error updating user $username: $msg");
3134 }
3135
3136 return ('OK',$resultmsg);
3137} # end updateUser()
3138
3139
3140## DNSDB::delUser()
3141# Delete a user.
3142# Takes a database handle and user ID
3143# Returns a success/failure code and matching message
3144sub delUser {
3145 my $self = shift;
3146 my $dbh = $self->{dbh};
3147 my $userid = shift;
3148
3149 return ('FAIL',"Bad userid") if !defined($userid);
3150
3151 my $userdata = $self->getUserData($userid);
3152
3153 # Allow transactions, and raise an exception on errors so we can catch it later.
3154 # Use local to make sure these get "reset" properly on exiting this block
3155 local $dbh->{AutoCommit} = 0;
3156 local $dbh->{RaiseError} = 1;
3157
3158 eval {
3159 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3160 $self->_log(group_id => $userdata->{group_id},
3161 entry => "Deleted user ID $userid/".$userdata->{username}.
3162 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3163 $dbh->commit;
3164 };
3165 if ($@) {
3166 my $msg = $@;
3167 eval { $dbh->rollback; };
3168 if ($self->{log_failures}) {
3169 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3170 "$userid/".$userdata->{username}.": $msg");
3171 $dbh->commit;
3172 }
3173 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3174 }
3175
3176 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3177} # end delUser
3178
3179
3180## DNSDB::userFullName()
3181# Return a pretty string!
3182# Takes a user_id and optional printf-ish string to indicate which pieces where:
3183# %u for the username
3184# %f for the first name
3185# %l for the last name
3186# All other text in the passed string will be left as-is.
3187##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3188sub userFullName {
3189 $errstr = '';
3190 my $self = shift;
3191 my $dbh = $self->{dbh};
3192 my $userid = shift;
3193 my $fullformat = shift || '%f %l (%u)';
3194 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3195 $sth->execute($userid);
3196 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3197 $errstr = $DBI::errstr if !$uname;
3198
3199 $fullformat =~ s/\%u/$uname/g;
3200 $fullformat =~ s/\%f/$fname/g;
3201 $fullformat =~ s/\%l/$lname/g;
3202
3203 return $fullformat;
3204} # end userFullName
3205
3206
3207## DNSDB::userStatus()
3208# Sets and/or returns a user's status
3209# Takes a database handle, user ID and optionally a status argument
3210# Returns undef on errors.
3211sub userStatus {
3212 my $self = shift;
3213 my $dbh = $self->{dbh};
3214 my $id = shift;
3215 my $newstatus = shift || 'mu';
3216
3217 return undef if $id !~ /^\d+$/;
3218
3219 my $userdata = $self->getUserData($id);
3220
3221 # Allow transactions, and raise an exception on errors so we can catch it later.
3222 # Use local to make sure these get "reset" properly on exiting this block
3223 local $dbh->{AutoCommit} = 0;
3224 local $dbh->{RaiseError} = 1;
3225
3226 if ($newstatus ne 'mu') {
3227 # ooo, fun! let's see what we were passed for status
3228 eval {
3229 $newstatus = 0 if $newstatus eq 'useroff';
3230 $newstatus = 1 if $newstatus eq 'useron';
3231 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3232
3233 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3234 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3235
3236 my %loghash;
3237 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3238 $loghash{entry} = $resultstr;
3239 $self->_log(%loghash);
3240
3241 $dbh->commit;
3242 };
3243 if ($@) {
3244 my $msg = $@;
3245 eval { $dbh->rollback; };
3246 $resultstr = '';
3247 $errstr = $msg;
3248##fixme: failure logging?
3249 return;
3250 }
3251 }
3252
3253 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3254 return $status;
3255} # end userStatus()
3256
3257
3258## DNSDB::getUserData()
3259# Get misc user data for display
3260sub getUserData {
3261 my $self = shift;
3262 my $dbh = $self->{dbh};
3263 my $uid = shift;
3264
3265 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3266 "FROM users WHERE user_id=?");
3267 $sth->execute($uid);
3268 return $sth->fetchrow_hashref();
3269} # end getUserData()
3270
3271
3272## DNSDB::addLoc()
3273# Add a new location.
3274# Takes a database handle, group ID, short and long description, and a comma-separated
3275# list of IP addresses.
3276# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3277sub addLoc {
3278 my $self = shift;
3279 my $dbh = $self->{dbh};
3280 my $grp = shift;
3281 my $shdesc = shift;
3282 my $comments = shift;
3283 my $iplist = shift;
3284
3285 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3286 $comments = '' if !$comments;
3287 $iplist = '' if !$iplist;
3288
3289 my $loc;
3290
3291 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3292 # for now; 676 locations should satisfy all but the largest of the huge networks.
3293 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3294 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3295
3296# add just after "my $origloc = $loc;":
3297# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3298# # and wrap it around.
3299# # Yes, they skip a couple of possibles. No, I don't care.
3300# $loc = 'aA' if $loc eq 'zz';
3301# $loc = 'Aa' if $loc eq 'zZ';
3302# $loc = 'ZA' if $loc eq 'Zz';
3303# $loc = 'aa' if $loc eq 'ZZ';
3304
3305 # Allow transactions, and raise an exception on errors so we can catch it later.
3306 # Use local to make sure these get "reset" properly on exiting this block
3307 local $dbh->{AutoCommit} = 0;
3308 local $dbh->{RaiseError} = 1;
3309
3310##fixme: There is probably a far better way to do this. Sequential increments
3311# are marginally less stupid that pure random generation though, and the existence
3312# check makes sure we don't stomp on an imported one.
3313
3314 eval {
3315 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3316 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3317 ($loc) = ($loc =~ /^(..)/) if $loc;
3318 my $origloc = $loc;
3319 $loc = 'aa' if !$loc;
3320 # Make a change...
3321 $loc++;
3322 # ... and keep changing if it exists
3323 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3324 $loc++;
3325 ($loc) = ($loc =~ /^(..)/);
3326 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3327##fixme: really need to handle this case faster somehow
3328#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3329 }
3330 # And now we should have a unique location. tinydns fundamentally limits the
3331 # number of these but there's no doc on what characters are valid.
3332 $shdesc = $loc if !$shdesc;
3333 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3334 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3335 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3336 $dbh->commit;
3337 };
3338 if ($@) {
3339 my $msg = $@;
3340 eval { $dbh->rollback; };
3341 if ($self->{log_failures}) {
3342 $shdesc = $loc if !$shdesc;
3343 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3344 $dbh->commit;
3345 }
3346 return ('FAIL',$msg);
3347 }
3348
3349 return ('OK',$loc);
3350} # end addLoc()
3351
3352
3353## DNSDB::updateLoc()
3354# Update details of a location.
3355# Takes a database handle, location ID, group ID, short description,
3356# long comments/notes, and comma/space-separated IP list
3357# Returns a result code and message
3358sub updateLoc {
3359 my $self = shift;
3360 my $dbh = $self->{dbh};
3361 my $loc = shift;
3362 my $grp = shift;
3363 my $shdesc = shift;
3364 my $comments = shift;
3365 my $iplist = shift;
3366
3367 $shdesc = '' if !$shdesc;
3368 $comments = '' if !$comments;
3369 $iplist = '' if !$iplist;
3370
3371 # Allow transactions, and raise an exception on errors so we can catch it later.
3372 # Use local to make sure these get "reset" properly on exiting this block
3373 local $dbh->{AutoCommit} = 0;
3374 local $dbh->{RaiseError} = 1;
3375
3376 my $oldloc = $self->getLoc($loc);
3377 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3378
3379 eval {
3380 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3381 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3382 $self->_log(entry => $okmsg);
3383 $dbh->commit;
3384 };
3385 if ($@) {
3386 my $msg = $@;
3387 eval { $dbh->rollback; };
3388 if ($self->{log_failures}) {
3389 $shdesc = $loc if !$shdesc;
3390 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3391 $dbh->commit;
3392 }
3393 return ('FAIL',$msg);
3394 }
3395
3396 return ('OK',$okmsg);
3397} # end updateLoc()
3398
3399
3400## DNSDB::delLoc()
3401sub delLoc {
3402 my $self = shift;
3403 my $dbh = $self->{dbh};
3404 my $loc = shift;
3405
3406 # Allow transactions, and raise an exception on errors so we can catch it later.
3407 # Use local to make sure these get "reset" properly on exiting this block
3408 local $dbh->{AutoCommit} = 0;
3409 local $dbh->{RaiseError} = 1;
3410
3411 my $oldloc = $self->getLoc($loc);
3412 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3413 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3414
3415 eval {
3416 # Check for records with this location first. Deleting a location without deleting records
3417 # tagged for that location will render them unpublished without other warning.
3418 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3419 die "Records still exist in location $olddesc\n" if $r;
3420 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3421 $self->_log(entry => $okmsg);
3422 $dbh->commit;
3423 };
3424 if ($@) {
3425 my $msg = $@;
3426 eval { $dbh->rollback; };
3427 if ($self->{log_failures}) {
3428 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3429 $dbh->commit;
3430 }
3431 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3432 }
3433
3434 return ('OK',$okmsg);
3435} # end delLoc()
3436
3437
3438## DNSDB::getLoc()
3439# Get details about a location/view
3440# Takes a database handle and location ID.
3441# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3442sub getLoc {
3443 my $self = shift;
3444 my $dbh = $self->{dbh};
3445 my $loc = shift;
3446
3447 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3448 $sth->execute($loc);
3449 return $sth->fetchrow_hashref();
3450} # end getLoc()
3451
3452
3453## DNSDB::getLocCount()
3454# Get count of locations/views
3455# Takes a database handle and hash containing at least the current group, and optionally:
3456# - a reference list of secondary groups
3457# - a filter string
3458# - a "Starts with" string
3459sub getLocCount {
3460 my $self = shift;
3461 my $dbh = $self->{dbh};
3462
3463 my %args = @_;
3464
3465 # Fail on bad curgroup argument. There's no sane fallback on this one.
3466 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3467 $errstr = "Bad or missing curgroup argument";
3468 return;
3469 }
3470 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3471 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3472 $errstr = "Bad childlist argument";
3473 return;
3474 }
3475
3476 my @filterargs;
3477 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3478 push @filterargs, "^$args{startwith}" if $args{startwith};
3479 push @filterargs, $args{filter} if $args{filter};
3480
3481 my $sql = "SELECT count(*) FROM locations ".
3482 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3483 ($args{startwith} ? " AND description ~* ?" : '').
3484 ($args{filter} ? " AND description ~* ?" : '');
3485 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3486 $errstr = $dbh->errstr if !$count;
3487 return $count;
3488} # end getLocCount()
3489
3490
3491## DNSDB::getLocList()
3492sub getLocList {
3493 my $self = shift;
3494 my $dbh = $self->{dbh};
3495
3496 my %args = @_;
3497
3498 # Fail on bad curgroup argument. There's no sane fallback on this one.
3499 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3500 $errstr = "Bad or missing curgroup argument";
3501 return;
3502 }
3503 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3504 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3505 $errstr = "Bad childlist argument";
3506 return;
3507 }
3508
3509 my @filterargs;
3510 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3511 push @filterargs, "^$args{startwith}" if $args{startwith};
3512 push @filterargs, $args{filter} if $args{filter};
3513
3514 # better to request sorts on "simple" names, but it means we need to map it to real columns
3515# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3516# fname => 'fname');
3517# $args{sortby} = $sortmap{$args{sortby}};
3518
3519 # protection against bad or missing arguments
3520 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3521 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3522 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3523
3524 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3525 "FROM locations l ".
3526 "INNER JOIN groups g ON l.group_id=g.group_id ".
3527 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3528 ($args{startwith} ? " AND l.description ~* ?" : '').
3529 ($args{filter} ? " AND l.description ~* ?" : '').
3530 " ORDER BY $args{sortby} $args{sortorder} ".
3531 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3532 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3533 $errstr = $dbh->errstr if !$ulist;
3534 return $ulist;
3535} # end getLocList()
3536
3537
3538## DNSDB::getLocDropdown()
3539# Get a list of location names for use in a dropdown menu.
3540# Takes a database handle, current group, and optional "tag this as selected" flag.
3541# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3542sub getLocDropdown {
3543 my $self = shift;
3544 my $dbh = $self->{dbh};
3545 my $grp = shift;
3546 my $sel = shift || '';
3547
3548 my $sth = $dbh->prepare(qq(
3549 SELECT description,location FROM locations
3550 WHERE group_id=?
3551 ORDER BY description
3552 ) );
3553 $sth->execute($grp);
3554
3555 my @loclist;
3556 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3557 while (my ($locname, $loc) = $sth->fetchrow_array) {
3558 my %row = (
3559 locname => $locname,
3560 loc => $loc,
3561 selected => ($sel eq $loc ? 1 : 0)
3562 );
3563 push @loclist, \%row;
3564 }
3565 return \@loclist;
3566} # end getLocDropdown()
3567
3568
3569## DNSDB::getSOA()
3570# Return all suitable fields from an SOA record in separate elements of a hash
3571# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3572sub getSOA {
3573 $errstr = '';
3574 my $self = shift;
3575 my $dbh = $self->{dbh};
3576 my $def = shift;
3577 my $rev = shift;
3578 my $id = shift;
3579
3580 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3581 # - should really attach serial to the zone parent somewhere
3582
3583 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3584 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3585 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3586 return if !$ret;
3587##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3588
3589 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3590 delete $ret->{host};
3591 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3592 delete $ret->{val};
3593
3594 return $ret;
3595} # end getSOA()
3596
3597
3598## DNSDB::updateSOA()
3599# Update the specified SOA record
3600# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3601# Returns a two-element list with a result code and message
3602sub updateSOA {
3603 my $self = shift;
3604 my $dbh = $self->{dbh};
3605 my $defrec = shift;
3606 my $revrec = shift;
3607
3608 my %soa = @_;
3609
3610 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
3611
3612 my $msg;
3613 my %logdata;
3614 if ($defrec eq 'n') {
3615 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3616 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3617 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
3618 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
3619 } else {
3620 $logdata{group_id} = $soa{id};
3621 }
3622 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
3623 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
3624
3625 # Allow transactions, and raise an exception on errors so we can catch it later.
3626 # Use local to make sure these get "reset" properly on exiting this block
3627 local $dbh->{AutoCommit} = 0;
3628 local $dbh->{RaiseError} = 1;
3629
3630 eval {
3631 if (!$oldsoa) {
3632 # old SOA record is missing for some reason. create a new one.
3633 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
3634 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
3635 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
3636 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
3637 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
3638 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3639 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3640 } else {
3641 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3642 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3643 $soa{ttl}, $oldsoa->{record_id}) );
3644 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3645 "SOA for $parname: ".
3646 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3647 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3648 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3649 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3650 }
3651 $logdata{entry} = $msg;
3652 $self->_log(%logdata);
3653
3654 $dbh->commit;
3655 };
3656 if ($@) {
3657 $msg = $@;
3658 eval { $dbh->rollback; };
3659 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3660 "SOA record for $parname: $msg";
3661 if ($self->{log_failures}) {
3662 $self->_log(%logdata);
3663 $dbh->commit;
3664 }
3665 return ('FAIL', $logdata{entry});
3666 } else {
3667 return ('OK', $msg);
3668 }
3669} # end updateSOA()
3670
3671
3672## DNSDB::getRecLine()
3673# Return all data fields for a zone record in separate elements of a hash
3674# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3675sub getRecLine {
3676 $errstr = '';
3677 my $self = shift;
3678 my $dbh = $self->{dbh};
3679 my $defrec = shift;
3680 my $revrec = shift;
3681 my $id = shift;
3682
3683##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
3684 my $sql = "SELECT record_id,host,type,val,ttl".
3685 ($defrec eq 'n' ? ',location' : '').
3686 ($revrec eq 'n' ? ',distance,weight,port' : '').
3687 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
3688 _rectable($defrec,$revrec)." WHERE record_id=?";
3689 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3690
3691 if ($dbh->err) {
3692 $errstr = $DBI::errstr;
3693 return undef;
3694 }
3695
3696 if (!$ret) {
3697 $errstr = "No such record";
3698 return undef;
3699 }
3700
3701 # explicitly set a parent id
3702 if ($defrec eq 'y') {
3703 $ret->{parid} = $ret->{group_id};
3704 } else {
3705 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3706 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3707 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3708 }
3709 $ret->{address} = $ret->{val}; # because.
3710
3711 return $ret;
3712}
3713
3714
3715##fixme: should use above (getRecLine()) to get lines for below?
3716## DNSDB::getRecList()
3717# Return records for a group or zone
3718# Takes a default/live flag, group or zone ID, start,
3719# number of records, sort field, and sort order
3720# Returns a reference to an array of hashes
3721sub getRecList {
3722 $errstr = '';
3723 my $self = shift;
3724 my $dbh = $self->{dbh};
3725
3726 my %args = @_;
3727
3728 # protection against bad or missing arguments
3729 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3730 my $defsort;
3731 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
3732 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
3733 $args{sortby} = '' if !$args{sortby};
3734 $args{sortby} = $defsort if !$args{revrec};
3735 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
3736 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3737 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
3738
3739 # sort reverse zones on IP, correctly
3740 # do other fiddling with $args{sortby} while we're at it.
3741 # whee! multisort means just passing comma-separated fields in sortby!
3742 my $newsort = '';
3743 foreach my $sf (split /,/, $args{sortby}) {
3744 $sf = "r.$sf";
3745 $sf =~ s/r\.val/inetlazy(r.val)/
3746 if $args{revrec} eq 'y' && $args{defrec} eq 'n';
3747 $sf =~ s/r\.type/t.alphaorder/;
3748 $newsort .= ",$sf";
3749 }
3750 $newsort =~ s/^,//;
3751
3752 my @bindvars = ($args{id});
3753 push @bindvars, ($args{filter},$args{filter}) if $args{filter};
3754
3755##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
3756 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3757 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
3758 if $args{defrec} eq 'n';
3759 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
3760 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
3761 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3762 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
3763 $sql .= "WHERE "._recparent($args{defrec},$args{revrec})." = ?";
3764 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3765# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
3766 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
3767 # we want to match both the formal and natural zone name
3768 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)" if $args{filter};
3769 my $tmp = join('.',reverse(split(/\./,$args{filter})));
3770 push @bindvars, ($tmp, $tmp) if $args{filter};
3771# } else {
3772# $sql .= " AND (r.host ~* ? OR r.val ~* ?)" if $args{filter};
3773# }
3774 $sql .= " ORDER BY $newsort $args{sortorder}";
3775 # ensure consistent ordering by sorting on record_id too
3776 $sql .= ", record_id $args{sortorder}";
3777 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
3778
3779 my @working;
3780 my $recsth = $dbh->prepare($sql);
3781 $recsth->execute(@bindvars);
3782 while (my $rec = $recsth->fetchrow_hashref) {
3783 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
3784 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
3785 $rec->{val} !~ /\.arpa$/ ) {
3786 # skip all reverse zone .arpa "hostnames" since they're already .arpa names.
3787##enhance: extend {showrev_arpa} eq 'record' to specify record types
3788 my $tmpip = new NetAddr::IP $rec->{val};
3789 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
3790 }
3791 push @working, $rec;
3792 }
3793 return \@working;
3794} # end getRecList()
3795
3796
3797## DNSDB::getRecCount()
3798# Return count of non-SOA records in zone (or default records in a group)
3799# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3800# and optional filtering modifier
3801# Returns the count
3802sub getRecCount {
3803 my $self = shift;
3804 my $dbh = $self->{dbh};
3805 my $defrec = shift;
3806 my $revrec = shift;
3807 my $id = shift;
3808 my $filter = shift || '';
3809
3810 # keep the nasties down, since we can't ?-sub this bit. :/
3811 # note this is chars allowed in DNS hostnames
3812 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3813
3814 my @bindvars = ($id);
3815 push @bindvars, ($filter,$filter) if $filter;
3816 my $sql = "SELECT count(*) FROM ".
3817 _rectable($defrec,$revrec).
3818 " WHERE "._recparent($defrec,$revrec)."=? ".
3819 "AND NOT type=$reverse_typemap{SOA}";
3820# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
3821 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
3822 # we want to match both the formal and natural zone name
3823 $sql .= " AND (host ~* ? OR val ~* ? OR host ~* ? OR val ~* ?)" if $filter;
3824 my $tmp = join('.',reverse(split(/\./,$filter)));
3825 push @bindvars, ($tmp, $tmp) if $filter;
3826# } else {
3827# $sql .= " AND (host ~* ? OR val ~* ?)" if $filter;
3828# }
3829
3830 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3831
3832 return $count;
3833
3834} # end getRecCount()
3835
3836
3837## DNSDB::addRec()
3838# Add a new record to a domain or a group's default records
3839# Takes a database handle, default/live flag, group/domain ID,
3840# host, type, value, and TTL
3841# Some types require additional detail: "distance" for MX and SRV,
3842# and weight/port for SRV
3843# Returns a status code and detail message in case of error
3844##fixme: pass a hash with the record data, not a series of separate values
3845sub addRec {
3846 $errstr = '';
3847 my $self = shift;
3848 my $dbh = $self->{dbh};
3849 my $defrec = shift;
3850 my $revrec = shift;
3851 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3852 # domain_id for domain records)
3853
3854 my $host = shift;
3855 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3856 my $val = shift;
3857 my $ttl = shift;
3858 my $location = shift;
3859 $location = '' if !$location;
3860
3861 my $expires = shift;
3862 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
3863 $expires = 0 if $expires eq 'after';
3864 my $stamp = shift;
3865 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
3866
3867 # Spaces are evil.
3868 $$host =~ s/^\s+//;
3869 $$host =~ s/\s+$//;
3870 if ($typemap{$$rectype} ne 'TXT') {
3871 # Leading or trailng spaces could be legit in TXT records.
3872 $$val =~ s/^\s+//;
3873 $$val =~ s/\s+$//;
3874 }
3875
3876 if ($self->{lowercase}) {
3877 if ($typemap{$$rectype} ne 'TXT') {
3878 $$host = lc($$host);
3879 $$val = lc($$val);
3880 } else {
3881 # TXT records should preserve user entry in the string.
3882 if ($revrec eq 'n') {
3883 $$host = lc($$host);
3884 } else {
3885 $$val = lc($$val);
3886 }
3887 }
3888 }
3889
3890 # prep for validation
3891 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
3892 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3893
3894 my $domid = 0;
3895 my $revid = 0;
3896
3897 my $retcode = 'OK'; # assume everything will go OK
3898 my $retmsg = '';
3899
3900 # do simple validation first
3901 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
3902
3903 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3904 my $dist = shift;
3905 my $weight = shift;
3906 my $port = shift;
3907
3908 my $fields;
3909 my @vallist;
3910
3911 # Call the validation sub for the type requested.
3912 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
3913 host => $host, rectype => $rectype, val => $val, addr => $addr,
3914 dist => \$dist, port => \$port, weight => \$weight,
3915 fields => \$fields, vallist => \@vallist);
3916
3917 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3918
3919 # Set up database fields and bind parameters
3920 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3921 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3922
3923 if ($defrec eq 'n') {
3924 # locations are not for default records, silly coder!
3925 $fields .= ",location";
3926 push @vallist, $location;
3927 # timestamps are rare.
3928 if ($stamp) {
3929 $fields .= ",stamp,expires,stampactive";
3930 push @vallist, $stamp, $expires, 'y';
3931 } else {
3932 $fields .= ",stampactive";
3933 push @vallist, 'n';
3934 }
3935 }
3936
3937 # a little magic to get the right number of ? placeholders based on how many values we're providing
3938 my $vallen = '?'.(',?'x$#vallist);
3939
3940 # Put together the success log entry. We have to use this horrible kludge
3941 # because domain_id and rdns_id may or may not be present, and if they are,
3942 # they're not at a guaranteed consistent index in the array. wheee!
3943 my %logdata;
3944 my @ftmp = split /,/, $fields;
3945 for (my $i=0; $i <= $#vallist; $i++) {
3946 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3947 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3948 }
3949 $logdata{group_id} = $id if $defrec eq 'y';
3950 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
3951 if $defrec eq 'n';
3952 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3953 # NS records for revzones get special treatment
3954 if ($revrec eq 'y' && $$rectype == 2) {
3955 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3956 } else {
3957 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3958 }
3959
3960 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3961 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3962 if $typemap{$$rectype} eq 'SRV';
3963 $logdata{entry} .= "', TTL $ttl";
3964 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
3965 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
3966
3967 # Allow transactions, and raise an exception on errors so we can catch it later.
3968 # Use local to make sure these get "reset" properly on exiting this block
3969 local $dbh->{AutoCommit} = 0;
3970 local $dbh->{RaiseError} = 1;
3971
3972 eval {
3973 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3974 undef, @vallist);
3975 $self->_log(%logdata);
3976 $dbh->commit;
3977 };
3978 if ($@) {
3979 my $msg = $@;
3980 eval { $dbh->rollback; };
3981 if ($self->{log_failures}) {
3982 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3983 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3984 $self->_log(%logdata);
3985 $dbh->commit;
3986 }
3987 return ('FAIL',$msg);
3988 }
3989
3990 $resultstr = $logdata{entry};
3991 return ($retcode, $retmsg);
3992
3993} # end addRec()
3994
3995
3996## DNSDB::updateRec()
3997# Update a record
3998# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3999# Returns a status code and message
4000sub updateRec {
4001 $errstr = '';
4002
4003 my $self = shift;
4004 my $dbh = $self->{dbh};
4005 my $defrec = shift;
4006 my $revrec = shift;
4007 my $id = shift;
4008 my $parid = shift; # immediate parent entity that we're descending from to update the record
4009
4010 # all records have these
4011 my $host = shift;
4012 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
4013 my $rectype = shift;
4014 my $val = shift;
4015 my $ttl = shift;
4016 my $location = shift; # may be empty/null/undef depending on caller
4017 $location = '' if !$location;
4018
4019 my $expires = shift;
4020 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4021 $expires = 0 if $expires eq 'after';
4022 my $stamp = shift;
4023 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4024
4025 # just set it to an empty string; failures will be caught later.
4026 $$host = '' if !$$host;
4027
4028 # Spaces are evil.
4029 $$host =~ s/^\s+//;
4030 $$host =~ s/\s+$//;
4031 if ($typemap{$$rectype} ne 'TXT') {
4032 # Leading or trailng spaces could be legit in TXT records.
4033 $$val =~ s/^\s+//;
4034 $$val =~ s/\s+$//;
4035 }
4036
4037 if ($self->{lowercase}) {
4038 if ($typemap{$$rectype} ne 'TXT') {
4039 $$host = lc($$host);
4040 $$val = lc($$val);
4041 } else {
4042 # TXT records should preserve user entry in the string.
4043 if ($revrec eq 'n') {
4044 $$host = lc($$host);
4045 } else {
4046 $$val = lc($$val);
4047 }
4048 }
4049 }
4050
4051 # prep for validation
4052 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4053 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4054
4055 my $domid = 0;
4056 my $revid = 0;
4057
4058 my $retcode = 'OK'; # assume everything will go OK
4059 my $retmsg = '';
4060
4061 # do simple validation first
4062 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4063
4064 # only MX and SRV will use these
4065 my $dist = shift || 0;
4066 my $weight = shift || 0;
4067 my $port = shift || 0;
4068
4069 my $fields;
4070 my @vallist;
4071
4072 # get old record data so we have the right parent ID
4073 # and for logging (eventually)
4074 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4075
4076 # Call the validation sub for the type requested.
4077 # Note the ID to pass here is the *parent*, not the record
4078 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4079 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4080 host => $host, rectype => $rectype, val => $val, addr => $addr,
4081 dist => \$dist, port => \$port, weight => \$weight,
4082 fields => \$fields, vallist => \@vallist,
4083 update => $id);
4084
4085 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4086
4087 # Set up database fields and bind parameters. Note only the optional fields
4088 # (distance, weight, port, secondary parent ID) are added in the validation call above
4089 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4090 push @vallist, ($$host,$$rectype,$$val,$ttl,
4091 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4092
4093 if ($defrec eq 'n') {
4094 # locations are not for default records, silly coder!
4095 $fields .= ",location";
4096 push @vallist, $location;
4097 # timestamps are rare.
4098 if ($stamp) {
4099 $fields .= ",stamp,expires,stampactive";
4100 push @vallist, $stamp, $expires, 'y';
4101 } else {
4102 $fields .= ",stampactive";
4103 push @vallist, 'n';
4104 }
4105 }
4106
4107 # hack hack PTHUI
4108 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4109 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4110 # needed for crossover types that got coerced down to "standard" types due to data changes
4111 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4112 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4113 if ($$rectype == $reverse_typemap{PTR}) {
4114 $fields .= ",domain_id";
4115 push @vallist, 0;
4116 }
4117 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4118 $fields .= ",rdns_id";
4119 push @vallist, 0;
4120 }
4121 }
4122 # fix fat-finger-originated record type changes
4123 if ($$rectype == 65285) { # delegation
4124 $fields .= ",rdns_id" if $revrec eq 'n';
4125 $fields .= ",domain_id" if $revrec eq 'y';
4126 push @vallist, 0;
4127 }
4128 # ... and now make sure we *do* associate a record with the "calling" parent
4129 if ($defrec eq 'n') {
4130 $domid = $parid if $revrec eq 'n';
4131 $revid = $parid if $revrec eq 'y';
4132 }
4133
4134 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4135 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4136 # will be maintained (due to "not-in-zone" validation changes)
4137 my %logdata;
4138 $logdata{domain_id} = $domid;
4139 $logdata{rdns_id} = $revid;
4140 my @ftmp = split /,/, $fields;
4141 for (my $i=0; $i <= $#vallist; $i++) {
4142 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4143 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4144 }
4145 $logdata{group_id} = $parid if $defrec eq 'y';
4146 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4147 if $defrec eq 'n';
4148 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4149 # NS records for revzones get special treatment
4150 if ($revrec eq 'y' && $$rectype == 2) {
4151 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4152 } else {
4153 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4154 }
4155 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4156 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4157 if $typemap{$oldrec->{type}} eq 'SRV';
4158 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4159 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4160 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4161 if $oldrec->{stampactive};
4162 $logdata{entry} .= "\nto\n";
4163 # More NS special
4164 if ($revrec eq 'y' && $$rectype == 2) {
4165 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4166 } else {
4167 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4168 }
4169 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4170 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4171 $logdata{entry} .= "', TTL $ttl";
4172 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4173 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
4174
4175 local $dbh->{AutoCommit} = 0;
4176 local $dbh->{RaiseError} = 1;
4177
4178 # Fiddle the field list into something suitable for updates
4179 $fields =~ s/,/=?,/g;
4180 $fields .= "=?";
4181
4182 eval {
4183 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4184 $self->_log(%logdata);
4185 $dbh->commit;
4186 };
4187 if ($@) {
4188 my $msg = $@;
4189 eval { $dbh->rollback; };
4190 if ($self->{log_failures}) {
4191 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4192 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4193 $self->_log(%logdata);
4194 $dbh->commit;
4195 }
4196 return ('FAIL', $msg);
4197 }
4198
4199 $resultstr = $logdata{entry};
4200 return ($retcode, $retmsg);
4201} # end updateRec()
4202
4203
4204## DNSDB::downconvert()
4205# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4206# to a compatible component type. Only a handful of operations are valid, anything
4207# else is a null-op.
4208# Takes the record ID and the new type. Returns boolean.
4209sub downconvert {
4210 my $self = shift;
4211 my $dbh = $self->{dbh};
4212 my $recid = shift;
4213 my $newtype = shift;
4214
4215 # also, only work on live records; little to no value trying to do this on default records.
4216 my $rec = $self->getRecLine('n', 'y', $recid);
4217
4218 # hm?
4219 #return 1 if !$rec;
4220
4221 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4222 return 1 if $rec->{type} == 65282; # Nowhere to go
4223
4224 my $delpar;
4225 my @sqlargs;
4226 if ($rec->{type} == 65280) {
4227 return 1 if $newtype != 1 && $newtype != 12;
4228 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4229 push @sqlargs, 0, $newtype, $recid;
4230 } elsif ($rec->{type} == 65281) {
4231 return 1 if $newtype != 28 && $newtype != 12;
4232 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4233 push @sqlargs, 0, $newtype, $recid;
4234 } elsif ($rec->{type} == 65283) {
4235 return 1 if $newtype != 65282;
4236 $delpar = 'rdns_id';
4237 } elsif ($rec->{type} == 65284) {
4238 return 1 if $newtype != 65282;
4239 $delpar = 'rdns_id';
4240 } else {
4241 # Your llama is on fire.
4242 }
4243
4244 local $dbh->{AutoCommit} = 0;
4245 local $dbh->{RaiseError} = 1;
4246
4247 eval {
4248 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4249 $dbh->commit;
4250 };
4251 if ($@) {
4252 $errstr = $@;
4253 eval { $dbh->rollback; };
4254 return 0;
4255 }
4256 return 1;
4257} # end downconvert()
4258
4259
4260## DNSDB::delRec()
4261# Delete a record.
4262sub delRec {
4263 $errstr = '';
4264 my $self = shift;
4265 my $dbh = $self->{dbh};
4266 my $defrec = shift;
4267 my $revrec = shift;
4268 my $id = shift;
4269
4270 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4271
4272 # Allow transactions, and raise an exception on errors so we can catch it later.
4273 # Use local to make sure these get "reset" properly on exiting this block
4274 local $dbh->{AutoCommit} = 0;
4275 local $dbh->{RaiseError} = 1;
4276
4277 # Put together the log entry
4278 my %logdata;
4279 $logdata{domain_id} = $oldrec->{domain_id};
4280 $logdata{rdns_id} = $oldrec->{rdns_id};
4281 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4282 $logdata{group_id} = $self->parentID(id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'),
4283 revrec => $revrec)
4284 if $defrec eq 'n';
4285 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4286 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4287 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4288 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4289 if $typemap{$oldrec->{type}} eq 'SRV';
4290 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4291 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4292
4293 eval {
4294 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4295 $self->_log(%logdata);
4296 $dbh->commit;
4297 };
4298 if ($@) {
4299 my $msg = $@;
4300 eval { $dbh->rollback; };
4301 if ($self->{log_failures}) {
4302 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4303 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4304 $self->_log(%logdata);
4305 $dbh->commit;
4306 }
4307 return ('FAIL', $msg);
4308 }
4309
4310 return ('OK',$logdata{entry});
4311} # end delRec()
4312
4313
4314## DNSDB::getLogCount()
4315# Get a count of log entries
4316# Takes a database handle and a hash containing at least:
4317# - Entity ID and entity type as the primary log "slice"
4318sub getLogCount {
4319 my $self = shift;
4320 my $dbh = $self->{dbh};
4321
4322 my %args = @_;
4323
4324 my @filterargs;
4325##fixme: which fields do we want to filter on?
4326# push @filterargs,
4327
4328 $errstr = 'Missing primary parent ID and/or type';
4329 # fail early if we don't have a "prime" ID to look for log entries for
4330 return if !$args{id};
4331
4332 # or if the prime id type is missing or invalid
4333 return if !$args{logtype};
4334 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4335 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4336 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4337
4338 my $sql = "SELECT count(*) FROM log ".
4339 "WHERE $id_col{$args{logtype}}=?".
4340 ($args{filter} ? " AND entry ~* ?" : '');
4341 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4342 $errstr = $dbh->errstr if !$count;
4343 return $count;
4344} # end getLogCount()
4345
4346
4347## DNSDB::getLogEntries()
4348# Get a list of log entries
4349# Takes arguments as with getLogCount() above, plus optional:
4350# - sort field
4351# - sort order
4352# - offset for pagination
4353sub getLogEntries {
4354 my $self = shift;
4355 my $dbh = $self->{dbh};
4356
4357 my %args = @_;
4358
4359 my @filterargs;
4360
4361 # fail early if we don't have a "prime" ID to look for log entries for
4362 return if !$args{id};
4363
4364 # or if the prime id type is missing or invalid
4365 return if !$args{logtype};
4366 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4367 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4368 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4369
4370 # Sorting defaults
4371 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4372 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4373 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4374
4375 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4376 $args{sortby} = $sortmap{$args{sortby}};
4377
4378 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4379 "date_trunc('second',stamp) AS logtime ".
4380 "FROM log ".
4381 "WHERE $id_col{$args{logtype}}=?".
4382 ($args{filter} ? " AND entry ~* ?" : '').
4383 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4384 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4385 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4386 $errstr = $dbh->errstr if !$loglist;
4387 return $loglist;
4388} # end getLogEntries()
4389
4390
4391## IPDB::getRevPattern()
4392# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4393sub getRevPattern {
4394 my $self = shift;
4395 my $dbh = $self->{dbh};
4396 my $cidr = shift;
4397 my $group = shift || 1; # just in case
4398
4399 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4400 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ? AND group_id = ?",
4401 undef, ($cidr, $group) );
4402
4403##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4404 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4405 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) >>= ? ".
4406 "ORDER BY inetlazy(val) DESC LIMIT 1", undef, ($revid, $cidr) );
4407 return $revpatt;
4408} # end getRevPattern()
4409
4410
4411## DNSDB::getTypelist()
4412# Get a list of record types for various UI dropdowns
4413# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4414# Returns an arrayref to list of hashrefs perfect for HTML::Template
4415sub getTypelist {
4416 my $self = shift;
4417 my $dbh = $self->{dbh};
4418 my $recgroup = shift;
4419 my $type = shift || $reverse_typemap{A};
4420
4421 # also accepting $webvar{revrec}!
4422 $recgroup = 'f' if $recgroup eq 'n';
4423 $recgroup = 'r' if $recgroup eq 'y';
4424
4425 my $sql = "SELECT val,name FROM rectypes WHERE ";
4426 if ($recgroup eq 'r') {
4427 # reverse zone types
4428 $sql .= "stdflag=2 OR stdflag=3";
4429 } elsif ($recgroup eq 'l') {
4430 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4431 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4432 } else {
4433 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4434 $sql .= "stdflag=1 OR stdflag=2";
4435 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4436 }
4437 $sql .= " ORDER BY listorder";
4438
4439 my $sth = $dbh->prepare($sql);
4440 $sth->execute;
4441 my @typelist;
4442 # track whether the passed type is in the list at all. allows you to edit a record
4443 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4444 # without changing its type (accidentally or otherwise)
4445 my $selflag = 0;
4446 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4447 my %row = ( recval => $rval, recname => $rname );
4448 if ($rval == $type) {
4449 $row{tselect} = 1;
4450 $selflag = 1;
4451 }
4452 push @typelist, \%row;
4453 }
4454
4455 # add the passed type if it wasn't in the list
4456 if (!$selflag) {
4457 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4458 push @typelist, \%row;
4459 }
4460
4461 # Add SOA on lookups since it's not listed in other dropdowns.
4462 if ($recgroup eq 'l') {
4463 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4464 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4465 push @typelist, \%row;
4466 }
4467
4468 return \@typelist;
4469} # end getTypelist()
4470
4471
4472## DNSDB::parentID()
4473# Get ID of entity that is nearest parent to requested id
4474# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4475# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4476# Returns the ID or undef on failure
4477sub parentID {
4478 my $self = shift;
4479 my $dbh = $self->{dbh};
4480
4481 my %args = @_;
4482
4483 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
4484 $args{partype} = 'group' if !$args{partype};
4485 $args{partype} = 'domain' if $args{partype} eq 'revzone';
4486
4487 # clean up defrec and revrec. default to live record, forward zone
4488 $args{defrec} = 'n' if !$args{defrec};
4489 $args{revrec} = 'n' if !$args{revrec};
4490
4491 if ($par_type{$args{partype}} eq 'domain') {
4492 # only live records can have a domain/zone parent
4493 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4494 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4495 " FROM records WHERE record_id = ?",
4496 undef, ($args{id}) ) or return;
4497 return $result;
4498 } else {
4499 # snag some arguments that will either fall through or be overwritten to save some code duplication
4500 my $tmpid = $args{id};
4501 my $type = $args{type};
4502 if ($type eq 'record' && $args{defrec} eq 'n') {
4503 # Live records go through the records table first.
4504 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4505 " FROM records WHERE record_id = ?",
4506 undef, ($args{id}) ) or return;
4507 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4508 }
4509 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4510 undef, ($tmpid) );
4511 return $result;
4512 }
4513# should be impossible to get here with even remotely sane arguments
4514 return;
4515} # end parentID()
4516
4517
4518## DNSDB::isParent()
4519# Returns true if $id1 is a parent of $id2, false otherwise
4520sub isParent {
4521 my $self = shift;
4522 my $dbh = $self->{dbh};
4523 my $id1 = shift;
4524 my $type1 = shift;
4525 my $id2 = shift;
4526 my $type2 = shift;
4527##todo: immediate, secondary, full (default)
4528
4529 # Return false on invalid types
4530 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4531 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4532
4533 # Return false on impossible relations
4534 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4535 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4536 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4537 return 0 if $type1 eq 'user'; # nothing may be child of a user
4538 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4539 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4540
4541 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4542 # case would be the UI creating a new <thing>, and so we don't have an ID for
4543 # <thing> to look up yet. in that case the UI should check the parent as well.
4544 return 0 if $id1 == 0; # nothing can have a parent id of 0
4545 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4546
4547 # group 1 is the ultimate root parent
4548 return 1 if $type1 eq 'group' && $id1 == 1;
4549
4550 # groups are always (a) parent of themselves
4551 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4552
4553 my $id = $id2;
4554 my $type = $type2;
4555 my $foundparent = 0;
4556
4557 # Records are the only entity with two possible parents. We need to split the parent checks on
4558 # domain/rdns.
4559 if ($type eq 'record') {
4560 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4561 undef, ($id));
4562 # check immediate parent against request
4563 return 1 if $type1 eq 'domain' && $id1 == $dom;
4564 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4565 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4566 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
4567 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
4568 # exit here since we've executed the loop below by proxy in the above recursive calls.
4569 return 0;
4570 }
4571
4572# almost the same loop as getParents() above
4573 my $limiter = 0;
4574 while (1) {
4575 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4576 my $result = $dbh->selectrow_hashref($sql,
4577 undef, ($id) );
4578 if (!$result) {
4579 $limiter++;
4580##fixme: how often will this happen on a live site? fail at max limiter <n>?
4581# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
4582 warn "no results looking for $sql with id $id (depth $limiter)\n";
4583 last;
4584 }
4585 if ($result && $result->{$par_col{$type}} == $id1) {
4586 $foundparent = 1;
4587 last;
4588 } else {
4589##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4590# should be impossible to create an inconsistent DB just with API calls.
4591 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4592 }
4593 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4594 last if $result->{$par_col{$type}} == 1;
4595 $id = $result->{$par_col{$type}};
4596 $type = $par_type{$type};
4597 }
4598
4599 return $foundparent;
4600} # end isParent()
4601
4602
4603## DNSDB::zoneStatus()
4604# Returns and optionally sets a zone's status
4605# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4606# Returns status, or undef on errors.
4607sub zoneStatus {
4608 my $self = shift;
4609 my $dbh = $self->{dbh};
4610 my $id = shift;
4611 my $revrec = shift;
4612 my $newstatus = shift || 'mu';
4613
4614 return undef if $id !~ /^\d+$/;
4615
4616 # Allow transactions, and raise an exception on errors so we can catch it later.
4617 # Use local to make sure these get "reset" properly on exiting this block
4618 local $dbh->{AutoCommit} = 0;
4619 local $dbh->{RaiseError} = 1;
4620
4621 if ($newstatus ne 'mu') {
4622 # ooo, fun! let's see what we were passed for status
4623 eval {
4624 $newstatus = 0 if $newstatus eq 'domoff';
4625 $newstatus = 1 if $newstatus eq 'domon';
4626 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4627 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4628
4629##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4630 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
4631 " state to ".($newstatus ? 'active' : 'inactive');
4632
4633 my %loghash;
4634 $loghash{domain_id} = $id if $revrec eq 'n';
4635 $loghash{rdns_id} = $id if $revrec eq 'y';
4636 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
4637 $loghash{entry} = $resultstr;
4638 $self->_log(%loghash);
4639
4640 $dbh->commit;
4641 };
4642 if ($@) {
4643 my $msg = $@;
4644 eval { $dbh->rollback; };
4645 $resultstr = '';
4646 $errstr = $msg;
4647 return;
4648 }
4649 }
4650
4651 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4652 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4653 undef, ($id) );
4654 return $status;
4655} # end zoneStatus()
4656
4657
4658## DNSDB::getZonesByCIDR()
4659# Get a list of zone names and IDs that records for a passed CIDR block are within.
4660sub getZonesByCIDR {
4661 my $self = shift;
4662 my $dbh = $self->{dbh};
4663 my %args = @_;
4664
4665 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
4666 { Slice => {} }, ($args{cidr}, $args{cidr}) );
4667 return $result;
4668} # end getZonesByCIDR()
4669
4670
4671## DNSDB::importAXFR
4672# Import a domain via AXFR
4673# Takes AXFR host, domain to transfer, group to put the domain in,
4674# and an optional hash containing:
4675# status - active/inactive state flag (defaults to active)
4676# rwsoa - overwrite-SOA flag (defaults to off)
4677# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4678# merge - flag to automerge A or AAAA records with matching PTR records
4679# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4680# if status is OK, but WARN includes conditions that are not fatal but should
4681# really be reported.
4682sub importAXFR {
4683 my $self = shift;
4684 my $dbh = $self->{dbh};
4685 my $ifrom_in = shift;
4686 my $zone = shift;
4687 my $group = shift;
4688
4689 my %args = @_;
4690
4691##fixme: add mode to delete&replace, merge+overwrite, merge new?
4692
4693 $args{status} = (defined($args{status}) ? $args{status} : 0);
4694 $args{status} = 1 if $args{status} eq 'on';
4695
4696 my $nrecs = 0;
4697 my $soaflag = 0;
4698 my $nsflag = 0;
4699 my $warnmsg = '';
4700 my $ifrom;
4701
4702 my $rev = 'n';
4703 my $code = 'OK';
4704 my $msg = 'foobar?';
4705
4706 # choke on possible bad setting in ifrom
4707 # IPv4 and v6, and valid hostnames!
4708 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4709 return ('FAIL', "Bad AXFR source host $ifrom")
4710 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4711
4712 my $errmsg;
4713
4714 my $zone_id;
4715 my $domain_id = 0;
4716 my $rdns_id = 0;
4717 my $cidr;
4718
4719# magic happens! detect if we're importing a domain or a reverse zone
4720# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
4721# or what the formal .arpa zone is (if we got a CIDR netblock)
4722# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
4723
4724 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
4725 # we seem to have a reverse zone
4726 $rev = 'y';
4727
4728 if ($zone =~ /\.arpa\.?$/) {
4729 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
4730 ($code,$msg) = _zone2cidr($zone);
4731 return ($code, $msg) if $code eq 'FAIL';
4732 $cidr = $msg;
4733 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
4734 # v4 revzone, CIDR netblock
4735 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4736 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4737 } elsif ($zone =~ /^[\d.]+$/) {
4738 # v4 revzone, leading-octet format
4739 my $mask = 32;
4740 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
4741 $zone .= '.0';
4742 $mask -= 8;
4743 }
4744 $zone .= "/$mask";
4745 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4746 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4747 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
4748 # v6 revzone, CIDR netblock
4749 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4750 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
4751 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4752 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
4753 # v6 revzone, leading-group format
4754 $zone =~ s/::$//;
4755 my $mask = 128;
4756 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
4757 $zone .= ":0";
4758 $mask -= 16;
4759 }
4760 $zone .= "/$mask";
4761 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4762 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4763 } else {
4764 # there is. no. else!
4765 return ('FAIL', "Unknown zone name format '$zone'");
4766 }
4767
4768 # several places this can be triggered from; better to do it once.
4769 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
4770
4771 # quick check to start to see if we've already got one
4772
4773 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
4774 undef, ("$cidr"));
4775 $rdns_id = $zone_id;
4776 } else {
4777 # default to domain
4778 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
4779 undef, ($zone));
4780 $domain_id = $zone_id;
4781 }
4782
4783 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
4784
4785 # little local utility sub to swap $val and $host for revzone records.
4786 sub _revswap {
4787 my $rechost = shift;
4788 my $recdata = shift;
4789
4790 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
4791 $rechost =~ s/\.in-addr\.arpa\.?$//;
4792 $rechost = join '.', reverse split /\./, $rechost;
4793 } else {
4794 $rechost =~ s/\.ip6\.arpa\.?$//;
4795 my @nibs = reverse split /\./, $rechost;
4796 $rechost = '';
4797 my $nc;
4798 foreach (@nibs) {
4799 $rechost.= $_;
4800 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
4801 }
4802 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
4803##fixme: there's a case that ends up with a partial entry here:
4804# ip:add:re:ss::
4805# can't reproduce after letting it sit overnight after discovery. :(
4806#print "$rechost\n";
4807 # canonicalize with NetAddr::IP
4808 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
4809 }
4810 return ($recdata,$rechost)
4811 }
4812
4813
4814 # Allow transactions, and raise an exception on errors so we can catch it later.
4815 # Use local to make sure these get "reset" properly on exiting this block
4816 local $dbh->{AutoCommit} = 0;
4817 local $dbh->{RaiseError} = 1;
4818
4819 my $sth;
4820 eval {
4821
4822 if ($rev eq 'n') {
4823##fixme: serial
4824 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
4825 ($zone, $group, $args{status}) );
4826 # get domain id so we can do the records
4827 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
4828 $domain_id = $zone_id;
4829 $self->_log(group_id => $group, domain_id => $domain_id,
4830 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
4831 } else {
4832##fixme: serial
4833 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
4834 ($cidr,$group,$args{status}) );
4835 # get revzone id so we can do the records
4836 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
4837 $rdns_id = $zone_id;
4838 $self->_log(group_id => $group, rdns_id => $rdns_id,
4839 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
4840 }
4841
4842## bizarre DBI<->Net::DNS interaction bug:
4843## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
4844## fixed, apparently I was doing *something* odd, but not certain what it was that
4845## caused a commit instead of barfing
4846
4847 my $res = Net::DNS::Resolver->new;
4848 $res->nameservers($ifrom);
4849 $res->axfr_start($zone)
4850 or die "Couldn't begin AXFR\n";
4851
4852 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
4853 " VALUES (?,?,?,?,?,?,?,?,?)");
4854
4855 # Stash info about sub-octet v4 revzones here so we don't have
4856 # to store the CNAMEs used to delegate a suboctet zone
4857 # $suboct{zone}{ns}[] -> array of nameservers
4858 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
4859## commented pending actual use of this data. for now, we'll just
4860## auto-(re)create the CNAMEs in revzones on export
4861# my %suboct;
4862
4863 while (my $rr = $res->axfr_next()) {
4864
4865 # Discard out-of-zone records. After trying for a while to replicate this with
4866 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
4867 # in the AXFR data in the first place, and possibly only older versions at that...
4868 # so it can't be reasonably tested. Yay Microsoft.
4869 if ($rr->name !~ /$zone$/i) {
4870 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
4871 }
4872
4873 my $val;
4874 my $distance = 0;
4875 my $weight = 0;
4876 my $port = 0;
4877 my $logfrag = '';
4878
4879 # Collect some record parts
4880 my $type = $rr->type;
4881 my $host = $rr->name;
4882 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
4883
4884 # Info flags for SOA and NS records
4885 $soaflag = 1 if $type eq 'SOA';
4886 $nsflag = 1 if $type eq 'NS';
4887
4888# "Primary" types:
4889# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
4890# maybe KEY
4891
4892# BIND supports:
4893# [standard]
4894# A AAAA CNAME MX NS PTR SOA TXT
4895# [variously experimental, obsolete, or obscure]
4896# 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
4897# ... if one can ever find the right magic to format them correctly
4898
4899# Net::DNS supports:
4900# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
4901# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
4902# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
4903
4904# nasty big ugly case-like thing here, since we have to do *some* different
4905# processing depending on the record. le sigh.
4906
4907# do the initial processing as if the record was in a forward zone. If we're
4908# doing a revzone, we can flip $host and $val as needed, once, after this
4909# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
4910
4911##fixme: what record types other than TXT can/will have >255-byte payloads?
4912
4913 if ($type eq 'A') {
4914 $val = $rr->address;
4915 } elsif ($type eq 'NS') {
4916# hmm. should we warn here if subdomain NS'es are left alone?
4917 next if ($args{rwns} && ($host eq $zone));
4918 $val = $rr->nsdname;
4919 $nsflag = 1;
4920 } elsif ($type eq 'CNAME') {
4921 $val = $rr->cname;
4922 } elsif ($type eq 'SOA') {
4923 next if $args{rwsoa};
4924 $host = $rr->rname.":".$rr->mname;
4925 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
4926 $soaflag = 1;
4927 } elsif ($type eq 'PTR') {
4928 $val = $rr->ptrdname;
4929 } elsif ($type eq 'MX') {
4930 $val = $rr->exchange;
4931 $distance = $rr->preference;
4932 } elsif ($type eq 'TXT') {
4933##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
4934## but don't really seem enthusiastic about it.
4935#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
4936# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
4937# char_str_list returns a list of the individual string fragments in the record
4938# txtdata returns the more useful all-in-one form (since we want to push such protocol
4939# details as far down the stack as we can)
4940# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
4941 $val = $rr->txtdata;
4942 } elsif ($type eq 'SPF') {
4943##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4944 $val = $rr->txtdata;
4945 } elsif ($type eq 'AAAA') {
4946 $val = $rr->address;
4947 } elsif ($type eq 'SRV') {
4948 $val = $rr->target;
4949 $distance = $rr->priority;
4950 $weight = $rr->weight;
4951 $port = $rr->port;
4952 } elsif ($type eq 'KEY') {
4953 # we don't actually know what to do with these...
4954 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4955 } else {
4956 $val = $rr->rdatastr;
4957 # Finding a different record type is not fatal.... just problematic.
4958 # We may not be able to export it correctly.
4959 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4960 }
4961
4962 if ($rev eq 'y' && $type ne 'SOA') {
4963 # up to this point we haven't meddled with the record's hostname part or rdata part.
4964 # for reverse records, (except SOA) we must swap the two.
4965 $host = $val;
4966 $val = $rr->name;
4967 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
4968 if ($tmpcode eq 'FAIL') {
4969 # $val did not have a valid IP value. It's syntactically valid but WTF?
4970 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
4971 } else {
4972 # $val has a valid IP value. See if we can store it as that IP value.
4973 # Note we're enumerating do-nothing cases for clarity.
4974##enhance: this is where we will implement the more subtle variations on #53
4975 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
4976 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
4977 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4978 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
4979 # case: PTR with netblock value, not IP value
4980 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
4981 # stored/displayed as dead:beef::/32 PTR foo
4982
4983## hrm. WTF is this case for, anyway? Needs testing to check the logic.
4984# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
4985# ($tmpmsg->masklen != $cidr->masklen)
4986# ) {
4987# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
4988# # and the mask does not match the zone
4989#$warnmsg .= "WTF case: $host $type $val\n";
4990# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4991
4992 } else {
4993 $val = $tmpmsg;
4994 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
4995 #$val =~ s/:0$//g;
4996 }
4997 }
4998 # magic? convert * records to PTR template (not sure this actually makes sense)
4999 #if ($val =~ /^\*/) {
5000 # $val =~ s/\*\.//;
5001 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
5002 # if ($tmpcode eq 'FAIL') {
5003 # $val = "*.$val";
5004 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
5005 # } else {
5006 # $type = 'PTR template';
5007 # $val = $tmpmsg; if $tmp
5008 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5009 # }
5010 #}
5011 } # non-SOA revrec $host/$val inversion and munging
5012
5013 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5014
5015 if ($args{merge}) {
5016 if ($rev eq 'n') {
5017 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5018 my $etype;
5019 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5020 "WHERE host=? AND val=? AND type=12",
5021 undef, ($host, $val) );
5022 if ($erid) {
5023 if ($type eq 'A') { # PTR -> A+PTR
5024 $etype = 65280;
5025 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5026 }
5027 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5028 $etype = 65281;
5029 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5030 }
5031 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5032 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5033 ($domain_id, $ettl, $etype, $erid));
5034 $nrecs++;
5035 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5036 next; # while axfr_next
5037 }
5038 } # $rev eq 'n'
5039 else {
5040 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5041 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5042 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5043 undef, ($host, $val) );
5044 if ($erid) {
5045 if ($etype == 1) { # A -> A+PTR
5046 $etype = 65280;
5047 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5048 }
5049 if ($etype == 28) { # AAAA -> AAAA+PTR
5050 $etype = 65281;
5051 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5052 }
5053 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5054 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5055 ($rdns_id, $ettl, $etype, $erid));
5056 $nrecs++;
5057 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5058 next; # while axfr_next
5059 }
5060 } # $rev eq 'y'
5061 } # if $args{merge}
5062
5063 # Insert the new record
5064 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5065 $distance, $weight, $port, $ttl);
5066
5067 $nrecs++;
5068
5069 if ($type eq 'SOA') {
5070 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5071 my @tmp1 = split /:/, $host;
5072 my @tmp2 = split /:/, $val;
5073 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5074 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5075 } elsif ($logfrag) {
5076 # special case for log entries we need to meddle with a little.
5077 $logentry .= $logfrag;
5078 } else {
5079 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5080 $logentry .= " [distance $distance]" if $type eq 'MX';
5081 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5082 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5083 }
5084 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5085
5086 } # while axfr_next
5087
5088# Detect and handle delegated subzones
5089# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5090#foreach (keys %suboct) {
5091# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5092# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5093#}
5094
5095 # Overwrite SOA record
5096 if ($args{rwsoa}) {
5097 $soaflag = 1;
5098 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5099 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5100 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5101 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5102 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5103 if ($rev eq 'n') {
5104 $host =~ s/DOMAIN/$zone/g;
5105 $val =~ s/DOMAIN/$zone/g; # arguably useless
5106 } else {
5107 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5108 }
5109 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5110 }
5111 }
5112
5113 # Add standard NS records. The old one(s) should have been skipped by this point.
5114 if ($args{rwns}) {
5115 $nsflag = 1;
5116 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5117 my $sthputns = $dbh->prepare("INSERT INTO records (".
5118 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5119 $sthgetns->execute($group,$reverse_typemap{NS});
5120 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5121 if ($rev eq 'n') {
5122 $host =~ s/DOMAIN/$zone/g;
5123 $val =~ s/DOMAIN/$zone/g; #hmm.
5124 } else {
5125 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5126 $val =~ s/ZONE/$cidr/g;
5127 }
5128 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5129 }
5130 }
5131
5132 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5133 die "Bad zone: No SOA record!\n" if !$soaflag;
5134 die "Bad zone: No NS records!\n" if !$nsflag;
5135
5136 $dbh->commit;
5137
5138 };
5139
5140 if ($@) {
5141 my $msg = $@;
5142 eval { $dbh->rollback; };
5143 return ('FAIL',$msg." $warnmsg");
5144 } else {
5145 return ('WARN', $warnmsg) if $warnmsg;
5146 return ('OK',"Imported OK");
5147 }
5148
5149 # it should be impossible to get here.
5150 return ('WARN',"OOOK!");
5151} # end importAXFR()
5152
5153
5154## DNSDB::importBIND()
5155sub importBIND {
5156} # end importBIND()
5157
5158
5159## DNSDB::import_tinydns()
5160sub import_tinydns {
5161} # end import_tinydns()
5162
5163
5164## DNSDB::export()
5165# Export the DNS database, or a part of it
5166# Takes a string indicating the export type, plus optional arguments depending on type
5167# Writes zone data to targets as appropriate for type
5168sub export {
5169 my $self = shift;
5170 my $target = shift;
5171
5172 if ($target eq 'tiny') {
5173 eval {
5174 $self->__export_tiny(@_);
5175 };
5176 if ($@) {
5177 $errstr = $@;
5178 return undef;
5179 }
5180 }
5181# elsif ($target eq 'foo') {
5182# __export_foo(@_);
5183#}
5184# etc
5185
5186 return 1;
5187} # end export()
5188
5189
5190## DNSDB::__export_tiny
5191# Internal sub to implement tinyDNS (compatible) export
5192# Takes filehandle to write export to, optional argument(s)
5193# to determine which data gets exported
5194sub __export_tiny {
5195 my $self = shift;
5196 my $dbh = $self->{dbh};
5197 my $datafile = shift;
5198 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5199
5200##fixme: slurp up further options to specify particular zone(s) to export
5201
5202##fixme: fail if $datafile isn't an open, writable file
5203
5204 # Error check - does the cache dir exist, if we're using one?
5205 if ($self->{usecache}) {
5206 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5207 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5208 die "$self->{exportcache} must be both readable and writable\n"
5209 if !-r $self->{exportcache} || !-w $self->{exportcache};
5210 }
5211
5212 # easy case - export all evarything
5213 # not-so-easy case - export item(s) specified
5214 # todo: figure out what kind of list we use to export items
5215
5216# raw packet in unknown format: first byte indicates length
5217# of remaining data, allows up to 255 raw bytes
5218
5219 # note: the only I/O failures we seem to be able to actually catch
5220 # here are "closed filehandle" errors. we're probably not writing
5221 # enough data at this point to properly trigger an "out of space"
5222 # error. :/
5223 eval {
5224 use warnings FATAL => ('io');
5225 # Locations/views - worth including in the caching setup?
5226 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5227 foreach my $location (keys %$lochash) {
5228 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5229 $ipprefix =~ s/\s+//g;
5230 $ipprefix = new NetAddr::IP $ipprefix;
5231##fixme: how to handle IPv6?
5232next if $ipprefix->{isv6};
5233 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5234 if ($ipprefix->masklen <= 8) {
5235 foreach ($ipprefix->split(8)) {
5236 my $tmp = $_->addr;
5237 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5238 print $datafile "%$location:$tmp\n";
5239 }
5240 } elsif ($ipprefix->masklen <= 16) {
5241 foreach ($ipprefix->split(16)) {
5242 my $tmp = $_->addr;
5243 $tmp =~ s/\.\d+\.\d+$//;
5244 print $datafile "%$location:$tmp\n";
5245 }
5246 } elsif ($ipprefix->masklen <= 24) {
5247 foreach ($ipprefix->split(24)) {
5248 my $tmp = $_->addr;
5249 $tmp =~ s/\.\d+$//;
5250 print $datafile "%$location:$tmp\n";
5251 }
5252 } else {
5253 foreach ($ipprefix->split(32)) {
5254 print $datafile "%$location:".$_->addr."\n";
5255 }
5256 }
5257 }
5258 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5259 }
5260 };
5261 if ($@) {
5262 die "Error writing locations to master file: $@, $!\n";
5263 }
5264
5265 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5266 my %recflags;
5267
5268# For reasons unknown, we can't sanely UNION these statements. Feh.
5269# Supposedly it should work though (note last 3 lines):
5270## PG manual
5271#UNION Clause
5272#
5273#The UNION clause has this general form:
5274#
5275# select_statement UNION [ ALL ] select_statement
5276#
5277#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5278#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5279#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5280 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5281 "FROM records WHERE rdns_id=? AND type=6");
5282 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5283 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5284 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5285 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5286 "ORDER BY masklen(revnet) DESC, rdns_id");
5287 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5288 $revsth->execute();
5289 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5290##fixme: need to find a way to block opening symlinked files without introducing a race.
5291# O_NOFOLLOW
5292# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5293# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5294# still be followed.
5295# but that doesn't help other platforms. :/
5296 my $tmpzone = NetAddr::IP->new($revzone);
5297##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5298## (eg /20 vs /24, starting on .0.0)
5299 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5300 my $cachefile = "$self->{exportcache}/$cz";
5301 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5302 eval {
5303
5304 # write fresh records if:
5305 # - we are not using the cache
5306 # - force_refresh is set
5307 # - the zone has changed
5308 # - the cache file does not exist
5309 # - the cache file is empty
5310 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5311 if ($self->{usecache}) {
5312 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5313 $zonefilehandle = *ZONECACHE;
5314 }
5315
5316 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5317 $soasth->execute($revid);
5318 my (@zsoa) = $soasth->fetchrow_array();
5319 _printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5320 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5321
5322 $recsth->execute($revid);
5323 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5324
5325 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5326 = $recsth->fetchrow_array) {
5327 next if $recflags{$recid};
5328
5329 # Check for out-of-zone data
5330 if ($val =~ /\.arpa$/) {
5331 # val is non-IP
5332 if ($val !~ /$fullzone$/) {
5333 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5334 next;
5335 }
5336 } else {
5337 my $ipval = new NetAddr::IP $val;
5338 if (!$tmpzone->contains($ipval)) {
5339 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5340 next;
5341 }
5342 } # is $val a raw .arpa name?
5343
5344 # Spaces are evil.
5345 $val =~ s/^\s+//;
5346 $val =~ s/\s+$//;
5347 if ($typemap{$type} ne 'TXT') {
5348 # Leading or trailng spaces could be legit in TXT records.
5349 $host =~ s/^\s+//;
5350 $host =~ s/\s+$//;
5351 }
5352
5353 _printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5354 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5355
5356 $recflags{$recid} = 1;
5357
5358 } # while ($recsth)
5359
5360 if ($self->{usecache}) {
5361 close ZONECACHE; # force the file to be written
5362 # catch obvious write errors that leave an empty temp file
5363 if (-s $tmpcache) {
5364 rename $tmpcache, $cachefile
5365 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5366 }
5367 }
5368
5369 } # if $changed or cache filesize is 0
5370
5371 };
5372 if ($@) {
5373 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5374 # error! something borked, and we should be able to fall back on the old cache file
5375 # report the error, somehow.
5376 } else {
5377 # mark zone as unmodified. Only do this if no errors, that way
5378 # export failures should recover a little more automatically.
5379 $zonesth->execute($revid);
5380 }
5381
5382 if ($self->{usecache}) {
5383 # We've already made as sure as we can that a cached zone file is "good",
5384 # although possibly stale/obsolete due to errors creating a new one.
5385 eval {
5386 open CACHE, "<$cachefile" or die $!;
5387 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5388 close CACHE;
5389 };
5390 die $@ if $@;
5391 }
5392
5393 } # while ($revsth)
5394
5395 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5396 "FROM records WHERE domain_id=? AND type=6");
5397 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5398 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5399# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5400 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5401 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5402 $domsth->execute();
5403 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5404##fixme: need to find a way to block opening symlinked files without introducing a race.
5405# O_NOFOLLOW
5406# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5407# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5408# still be followed.
5409# but that doesn't help other platforms. :/
5410 my $cachefile = "$self->{exportcache}/$dom";
5411 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5412 eval {
5413
5414 # write fresh records if:
5415 # - we are not using the cache
5416 # - force_refresh is set
5417 # - the zone has changed
5418 # - the cache file does not exist
5419 # - the cache file is empty
5420 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5421 if ($self->{usecache}) {
5422 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5423 $zonefilehandle = *ZONECACHE;
5424 }
5425
5426 # need to fetch this separately so the SOA comes first in the flatfile....
5427 # Just In Case we need/want to reimport from the flatfile later on.
5428 $soasth->execute($domid);
5429 my (@zsoa) = $soasth->fetchrow_array();
5430 _printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5431 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5432
5433 $recsth->execute($domid);
5434 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5435 next if $recflags{$recid};
5436
5437 # Check for out-of-zone data
5438 if ($host !~ /$dom$/) {
5439 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5440 next;
5441 }
5442
5443 # Spaces are evil.
5444 $host =~ s/^\s+//;
5445 $host =~ s/\s+$//;
5446 if ($typemap{$type} ne 'TXT') {
5447 # Leading or trailng spaces could be legit in TXT records.
5448 $val =~ s/^\s+//;
5449 $val =~ s/\s+$//;
5450 }
5451
5452 _printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5453 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5454
5455 $recflags{$recid} = 1;
5456
5457 } # while ($recsth)
5458
5459
5460 if ($self->{usecache}) {
5461 close ZONECACHE; # force the file to be written
5462 # catch obvious write errors that leave an empty temp file
5463 if (-s $tmpcache) {
5464 rename $tmpcache, $cachefile
5465 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5466 }
5467 }
5468
5469 } # if $changed or cache filesize is 0
5470
5471 };
5472 if ($@) {
5473 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5474 # error! something borked, and we should be able to fall back on the old cache file
5475 # report the error, somehow.
5476 } else {
5477 # mark domain as unmodified. Only do this if no errors, that way
5478 # export failures should recover a little more automatically.
5479 $zonesth->execute($domid);
5480 }
5481
5482 if ($self->{usecache}) {
5483 # We've already made as sure as we can that a cached zone file is "good",
5484 # although possibly stale/obsolete due to errors creating a new one.
5485 eval {
5486 open CACHE, "<$cachefile" or die $!;
5487 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
5488 close CACHE;
5489 };
5490 die $@ if $@;
5491 }
5492
5493 } # while ($domsth)
5494
5495 return 1;
5496} # end __export_tiny()
5497
5498
5499# Utility sub for __export_tiny above
5500sub _printrec_tiny {
5501 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
5502 $loc, $stamp, $expires, $stampactive) = @_;
5503
5504 $loc = '' if !$loc; # de-nullify - just in case
5505##fixme: handle case of record-with-location-that-doesn't-exist better.
5506# note this currently fails safe (tested) - records with a location that
5507# doesn't exist will not be sent to any client
5508# $loc = '' if !$lochash->{$loc};
5509
5510
5511## Records that are valid only before or after a set time
5512
5513# record due to expire sometime is the complex case. we don't want to just
5514# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
5515# is one day instead of the SOA minttl as BIND might do.
5516
5517# consider the case where a record is set to expire a week ahead, but the next
5518# day later you want to change it NOW (or as NOWish as you get with your DNS
5519# management practice). but now you're stuck, because someone, somewhere,
5520# has just done a lookup before your latest change was published, and they'll
5521# be caching that old, broken record for 1 day instead of your zone default
5522# TTL.
5523
5524# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
5525# to still have the expiry happen as scheduled, but we need to find some
5526# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
5527# but we need info on the export frequency.
5528
5529# export the normal, non-expiring record up until $stamp-<guesstimate>, then
5530# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
5531# takes over TTL management.
5532
5533 if ($stampactive) {
5534 if ($expires) {
5535 # record expires at $stamp; decide if we need to keep the TTL and ignore
5536 # the stamp for a time or if we need to change the TTL to 0 and convert
5537 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
5538# extra hack, optimally needs more knowledge of data export frequency
5539# smack the idiot customer who insists on 0 TTLs; they can suck up and
5540# deal with a 10-minute TTL. especially on scheduled changes. note this
5541# should be (export freq * 2), but we don't know the actual export frequency.
5542$ttl = 300 if $ttl == 0; #hack phtui
5543 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
5544 if ((time() + $ahead) < $stamp) {
5545 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
5546 $stamp = '';
5547 } else {
5548 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
5549 $ttl = 0;
5550 $stamp = unixtai64($stamp);
5551 $stamp =~ s/\@//;
5552 }
5553 } else {
5554 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
5555 $stamp = unixtai64($stamp);
5556 $stamp =~ s/\@//;
5557 }
5558 } else {
5559 # flag for active timestamp is false; don't actually put a timestamp in the output
5560 $stamp = '';
5561 }
5562
5563 # support tinydns' auto-TTL
5564 $ttl = '' if $ttl == -1;
5565# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
5566# NS 259200 => 3d
5567# all others 86400 => 1d
5568
5569 if ($revrec eq 'y') {
5570 $val = $zone if $val eq '@';
5571 } else {
5572 $host = $zone if $host eq '@';
5573 }
5574
5575 ## Convert a bare number into an octal-coded pair of octets.
5576 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
5577 sub octalize {
5578 my $tmp = shift;
5579 my $srctype = shift || 'h'; # default assumes hex string
5580 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
5581 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
5582 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
5583 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
5584 }
5585
5586## WARNING: This works to export even the whole Internet's worth of IP space...
5587## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
5588## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
5589## 0/0 is estimated to take ~54 hours and ~256G of disk
5590## RAM usage depends on how many non-template entries you have in the set.
5591## This should probably be done on record addition rather than export; large blocks may need to be done in a
5592## forked process
5593 sub __publish_subnet {
5594 my $sub = shift;
5595 my $recflags = shift;
5596 my $hpat = shift;
5597 my $fh = shift;
5598 my $ttl = shift;
5599 my $stamp = shift;
5600 my $loc = shift;
5601 my $ptronly = shift || 0;
5602
5603 my $iplist = $sub->splitref(32);
5604 foreach (@$iplist) {
5605 my $ip = $_->addr;
5606 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
5607 next if $ip =~ /\.(0|255)$/;
5608 next if $$recflags{$ip};
5609 $$recflags{$ip}++;
5610 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
5611 my $rec = $hpat; # start fresh with the template for each IP
5612 _template4_expand(\$rec, $ip);
5613 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
5614 ":$ttl:$stamp:$loc\n" or die $!;
5615 }
5616 }
5617
5618##fixme? append . to all host/val hostnames
5619 if ($typemap{$type} eq 'SOA') {
5620
5621 # host contains pri-ns:responsible
5622 # val is abused to contain refresh:retry:expire:minttl
5623##fixme: "manual" serial vs tinydns-autoserial
5624 # let's be explicit about abusing $host and $val
5625 my ($email, $primary) = (split /:/, $host)[0,1];
5626 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
5627 if ($revrec eq 'y') {
5628##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
5629# what about v6?
5630# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
5631 $zone = NetAddr::IP->new($zone);
5632 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5633 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
5634 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
5635 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5636 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5637 or die $!;
5638 }
5639 return; # skips "default" bits just below
5640 }
5641 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5642 }
5643 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5644 or die $!;
5645
5646 } elsif ($typemap{$type} eq 'A') {
5647
5648 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
5649
5650 } elsif ($typemap{$type} eq 'NS') {
5651
5652 if ($revrec eq 'y') {
5653 $val = NetAddr::IP->new($val);
5654 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5655 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
5656 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
5657 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5658 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5659 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5660 $$recflags{$szone2} = $val->masklen;
5661 }
5662 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
5663 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
5664 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
5665 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5666 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5667 $$recflags{$szone2} = $val->masklen;
5668 }
5669 } else {
5670 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5671 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5672 $$recflags{$val2} = $val->masklen;
5673 }
5674 } else {
5675 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
5676 }
5677
5678 } elsif ($typemap{$type} eq 'AAAA') {
5679
5680# print $datafile ":$host:28:";
5681 my $altgrp = 0;
5682 my @altconv;
5683 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
5684 foreach (split /:/, $val) {
5685 if (/^$/) {
5686 # flag blank entry; this is a series of 0's of (currently) unknown length
5687 $altconv[$altgrp++] = 's';
5688 } else {
5689 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
5690 $altconv[$altgrp++] = octalize($_)
5691 }
5692 }
5693 my $prefix = ":$host:28:";
5694 foreach my $octet (@altconv) {
5695 # if not 's', output
5696 $prefix .= $octet unless $octet =~ /^s$/;
5697 # if 's', output (9-array length)x literal '\000\000'
5698 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
5699 }
5700 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
5701
5702 } elsif ($typemap{$type} eq 'MX') {
5703
5704##fixme: what if we get an MX AXFRed into a reverse zone?
5705 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
5706
5707 } elsif ($typemap{$type} eq 'TXT') {
5708
5709##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
5710 if ($revrec eq 'n') {
5711 $val =~ s/:/\\072/g; # may need to replace other symbols
5712 print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
5713 } else {
5714 $host =~ s/:/\\072/g; # may need to replace other symbols
5715 my $val2 = NetAddr::IP->new($val);
5716 print $datafile "'"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5717 ":$host:$ttl:$stamp:$loc\n" or die $!;
5718 }
5719
5720# by-hand TXT
5721#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
5722#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
5723#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
5724
5725#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
5726#: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
5727
5728# very long TXT record as brought in by axfr-get
5729# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
5730# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
5731#:longtxt.deepnet.cx:16:
5732#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
5733#\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.
5734#\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.
5735#:3600
5736
5737 } elsif ($typemap{$type} eq 'CNAME') {
5738
5739 if ($revrec eq 'n') {
5740 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
5741 } else {
5742 my $val2 = NetAddr::IP->new($val);
5743 print $datafile "C"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5744 ":$host:$ttl:$stamp:$loc\n" or die $!;
5745 }
5746
5747 } elsif ($typemap{$type} eq 'SRV') {
5748
5749 # data is two-byte values for priority, weight, port, in that order,
5750 # followed by length/string data
5751
5752 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d') or die $!;
5753
5754 $val .= '.' if $val !~ /\.$/;
5755 foreach (split /\./, $val) {
5756 printf $datafile "\\%0.3o%s", length($_), $_ or die $!;
5757 }
5758 print $datafile "\\000:$ttl:$stamp:$loc\n" or die $!;
5759
5760 } elsif ($typemap{$type} eq 'RP') {
5761
5762 # RP consists of two mostly free-form strings.
5763 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
5764 # The second is the "hostname" of a TXT record with more info.
5765 my $prefix = ":$host:17:";
5766 my ($who,$what) = split /\s/, $val;
5767 foreach (split /\./, $who) {
5768 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5769 }
5770 $prefix .= '\000';
5771 foreach (split /\./, $what) {
5772 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5773 }
5774 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
5775
5776 } elsif ($typemap{$type} eq 'PTR') {
5777
5778 $zone = NetAddr::IP->new($zone);
5779 $$recflags{$val}++;
5780 if (!$zone->{isv6} && $zone->masklen > 24) {
5781 ($val) = ($val =~ /\.(\d+)$/);
5782 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
5783 ":$host:$ttl:$stamp:$loc\n" or die $!;
5784 } else {
5785 $val = NetAddr::IP->new($val);
5786 print $datafile "^".
5787 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5788 ":$host:$ttl:$stamp:$loc\n" or die $!;
5789 }
5790
5791 } elsif ($type == 65280) { # A+PTR
5792
5793 $$recflags{$val}++;
5794 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
5795
5796 } elsif ($type == 65281) { # AAAA+PTR
5797
5798 $$recflags{$val}++;
5799 # treat these as two separate records. since tinydns doesn't have
5800 # a native combined type, we have to create them separately anyway.
5801 # print both; a dangling record is harmless, and impossible via web
5802 # UI anyway
5803 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,28,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5804 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,12,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5805##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
5806# type 6 is for AAAA+PTR, type 3 is for AAAA
5807
5808 } elsif ($type == 65282) { # PTR template
5809
5810 # only useful for v4 with standard DNS software, since this expands all
5811 # IPs in $zone (or possibly $val?) with autogenerated records
5812 $val = NetAddr::IP->new($val);
5813 return if $val->{isv6};
5814
5815 if ($val->masklen <= 16) {
5816 foreach my $sub ($val->split(16)) {
5817 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5818 }
5819 } else {
5820 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5821 }
5822
5823 } elsif ($type == 65283) { # A+PTR template
5824
5825 $val = NetAddr::IP->new($val);
5826 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
5827 return if $val->{isv6};
5828
5829 if ($val->masklen <= 16) {
5830 foreach my $sub ($val->split(16)) {
5831 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5832 }
5833 } else {
5834 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5835 }
5836
5837 } elsif ($type == 65284) { # AAAA+PTR template
5838 # Stub for completeness. Could be exported to DNS software that supports
5839 # some degree of internal automagic in generic-record-creation
5840 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
5841
5842 } elsif ($type == 65285) { # Delegation
5843 # This is intended for reverse zones, but may prove useful in forward zones.
5844
5845 # All delegations need to create one or more NS records. The NS record handler knows what to do.
5846 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
5847 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
5848 if ($revrec eq 'y') {
5849 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
5850 # to redirect all of the individual IP lookups as well.
5851 # Not sure how this would actually resolve if a /24 or larger was delegated
5852 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
5853 my $dblock = NetAddr::IP->new($val);
5854 if (!$dblock->{isv6} && $dblock->masklen > 24) {
5855 my @subs = $dblock->split;
5856 foreach (@subs) {
5857 next if $$recflags{"$_"};
5858 my ($oct) = ($_->addr =~ /(\d+)$/);
5859 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
5860 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
5861 $$recflags{"$_"}++;
5862 }
5863 }
5864 }
5865
5866##
5867## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
5868##
5869
5870 } elsif ($type == 44) { # SSHFP
5871 my ($algo,$fpt,$fp) = split /\s+/, $val;
5872
5873 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
5874 while (my ($byte) = ($fp =~ /^(..)/) ) {
5875 $rec .= sprintf "\\%0.3o", hex($byte);
5876 $fp =~ s/^..//;
5877 }
5878 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
5879
5880 } else {
5881 # raw record. we don't know what's in here, so we ASS-U-ME the user has
5882 # put it in correctly, since either the user is messing directly with the
5883 # database, or the record was imported via AXFR
5884 # <split by char>
5885 # convert anything not a-zA-Z0-9.- to octal coding
5886
5887##fixme: add flag to export "unknown" record types - note we'll probably end up
5888# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
5889 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
5890
5891 } # record type if-else
5892
5893} # end _printrec_tiny()
5894
5895
5896## DNSDB::mailNotify()
5897# Sends notification mail to recipients regarding a DNSDB operation
5898sub mailNotify {
5899 my $self = shift;
5900 my $dbh = $self->{dbh};
5901 my ($subj,$message) = @_;
5902
5903 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
5904
5905 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
5906
5907 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
5908
5909 $mailer->mail($mailsender);
5910 $mailer->to($self->{mailnotify});
5911 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
5912 "To: <$self->{mailnotify}>\n",
5913 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
5914 "Subject: $subj\n",
5915 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
5916 "Organization: $self->{orgname}\n",
5917 "\n$message\n");
5918 $mailer->quit;
5919}
5920
5921# shut Perl up
59221;
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