source: trunk/DNSDB.pm@ 616

Last change on this file since 616 was 616, checked in by Kris Deugau, 10 years ago

/trunk

Update _validate_2() to handle any-record-in-any-zone, and handle
semigibberish reverse zone records that are syntactically valid.

See #53.
  • Property svn:keywords set to Date Rev Author Id
File size: 215.3 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 616 2014-04-23 20:34:03Z 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 = $self->{dbh};
550
551 my %args = @_;
552
553 # NS target check - IP addresses not allowed. Must be a more or less well-formed hostname.
554 if ($args{revrec} eq 'y') {
555 return ('FAIL', "NS records cannot point directly to an IP address")
556 if ${$args{host}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
557##enhance: Look up the passed value to see if it exists. Ooo, fancy.
558 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{host}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
559 } else {
560 return ('FAIL', "NS records cannot point directly to an IP address")
561 if ${$args{val}} =~ /^(?:[\d.]+|[0-9a-fA-F:]+)$/;
562##enhance: Look up the passed value to see if it exists. Ooo, fancy.
563 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec});
564 }
565
566 # Check that the target of the record is within the parent.
567 if ($args{defrec} eq 'n') {
568 # Check if IP/address/zone/"subzone" is within the parent
569 if ($args{revrec} eq 'y') {
570 # Get the revzone, so we can see if ${$args{val}} is in that zone
571 my $revzone = new NetAddr::IP $self->revName($args{id}, 'y');
572
573 # Note the NS record may or may not be for the zone itself, it may be a pointer for a subzone
574 return ('FAIL', $errstr) if !$self->_inrev($args{val}, $revzone);
575
576 # ${$args{val}} is either a valid IP or a string ending with the .arpa zone name;
577 # now check if it's a well-formed FQDN
578##enhance or ##fixme
579# convert well-formed .arpa names to IP addresses to match old "strict" validation design
580 return ('FAIL', $errstr) if ! _check_hostname_form(${$args{val}}, ${$args{rectype}}, $args{defrec}, $args{revrec}) &&
581 ${$args{val}} =~ /\.arpa$/;
582 } else {
583 # Forcibly append the domain name if the hostname being added does not end with the current domain name
584 my $pname = $self->domainName($args{id});
585 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
586 }
587 } else {
588 # Default reverse NS records should always refer to the implied parent.
589 if ($args{revrec} eq 'y') {
590 ${$args{val}} = 'ZONE';
591 } else {
592 ${$args{host}} = 'DOMAIN';
593 }
594 }
595
596 return ('OK','OK');
597} # done NS record
598
599# CNAME record
600sub _validate_5 {
601 my $self = shift;
602 my $dbh = $self->{dbh};
603
604 my %args = @_;
605
606# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
607# This is fundamentally a messy operation and should really just be taken care of by the
608# export process, not manual maintenance of the necessary records.
609 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
610
611 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
612 # or the intended parent domain for live records.
613 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
614 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
615
616 return ('OK','OK');
617} # done CNAME record
618
619# SOA record
620sub _validate_6 {
621 # Smart monkeys won't stick their fingers in here; we have
622 # separate dedicated routines to deal with SOA records.
623 return ('OK','OK');
624} # done SOA record
625
626# PTR record
627sub _validate_12 {
628 my $self = shift;
629 my $dbh = $self->{dbh};
630
631 my %args = @_;
632
633 if ($args{revrec} eq 'y') {
634 if ($args{defrec} eq 'n') {
635 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
636 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
637 ${$args{val}} = $args{addr}->addr;
638 } else {
639 if (${$args{val}} =~ /\./) {
640 # looks like a v4 or fragment
641 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
642 # woo! a complete IP! validate it and normalize, or fail.
643 $args{addr} = NetAddr::IP->new(${$args{val}})
644 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
645 ${$args{val}} = $args{addr}->addr;
646 } else {
647 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
648 }
649 } elsif (${$args{val}} =~ /[a-f:]/) {
650 # looks like a v6 or fragment
651 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
652 if ($args{addr}) {
653 if ($args{addr}->addr =~ /^0/) {
654 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
655 } else {
656 ${$args{val}} = $args{addr}->addr;
657 }
658 }
659 } else {
660 # bare number (probably). These could be v4 or v6, so we'll
661 # expand on these on creation of a reverse zone.
662 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
663 }
664 ${$args{host}} =~ s/\.*$/\.$self->{domain}/ if ${$args{host}} !~ /(?:$self->{domain}|ADMINDOMAIN)$/;
665 }
666
667# Multiple PTR records do NOT generally do what most people believe they do,
668# and tend to fail in the most awkward way possible. Check and warn.
669# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
670
671 my @checkvals = (${$args{val}});
672 if (${$args{val}} =~ /,/) {
673 # push . and :: variants into checkvals if val has ,
674 my $tmp;
675 ($tmp = ${$args{val}}) =~ s/,/./;
676 push @checkvals, $tmp;
677 ($tmp = ${$args{val}}) =~ s/,/::/;
678 push @checkvals, $tmp;
679 }
680 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
681 foreach my $checkme (@checkvals) {
682 if ($args{update}) {
683 # Record update. There should usually be an existing PTR (the record being updated)
684 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
685 " WHERE val = ?", undef, ($checkme)) };
686 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
687 if @ptrs && (!grep /^$args{update}$/, @ptrs);
688 } else {
689 # New record. Always warn if a PTR exists
690 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
691 " WHERE val = ?", undef, ($checkme));
692 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
693 if $ptrcount;
694 }
695 }
696
697 } else {
698 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
699 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
700 # PTR records on export
701 return ('FAIL',"Forward zones cannot contain PTR records");
702 }
703
704 return ('OK','OK');
705} # done PTR record
706
707# MX record
708sub _validate_15 {
709 my $self = shift;
710 my $dbh = $self->{dbh};
711
712 my %args = @_;
713
714# Not absolutely true but WTF use is an MX record for a reverse zone?
715 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
716
717 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
718 ${$args{dist}} =~ s/\s*//g;
719 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
720
721 ${$args{fields}} = "distance,";
722 push @{$args{vallist}}, ${$args{dist}};
723
724 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
725 # or the intended parent domain for live records.
726 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
727 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
728
729# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
730# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
731# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
732# return ('FAIL',"$val is not a valid IP address") if !$addr;
733# }
734# }
735
736 return ('OK','OK');
737} # done MX record
738
739# TXT record
740sub _validate_16 {
741 my $self = shift;
742
743 my %args = @_;
744
745 if ($args{revrec} eq 'y') {
746 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
747 # or the intended parent domain for live records.
748 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
749 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
750 }
751
752 # Could arguably put a WARN return here on very long (>512) records
753 return ('OK','OK');
754} # done TXT record
755
756# RP record
757sub _validate_17 {
758 # Probably have to validate these some day
759 return ('OK','OK');
760} # done RP record
761
762# AAAA record
763sub _validate_28 {
764 my $self = shift;
765 my $dbh = $self->{dbh};
766
767 my %args = @_;
768
769 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
770
771 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
772 # or the intended parent domain for live records.
773 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
774 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
775
776 # Check IP is well-formed, and that it's a v6 address
777 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
778 unless $args{addr} && $args{addr}->{isv6};
779 # coerce IP/value to normalized form for storage
780 ${$args{val}} = $args{addr}->addr;
781
782 return ('OK','OK');
783} # done AAAA record
784
785# SRV record
786sub _validate_33 {
787 my $self = shift;
788 my $dbh = $self->{dbh};
789
790 my %args = @_;
791
792# Not absolutely true but WTF use is an SRV record for a reverse zone?
793 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
794
795 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
796 ${$args{dist}} =~ s/\s*//g;
797 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
798
799 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
800 # or the intended parent domain for live records.
801 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
802 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
803
804 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
805 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
806 return ('FAIL',"Port and weight are required for SRV records")
807 unless defined(${$args{weight}}) && defined(${$args{port}});
808 ${$args{weight}} =~ s/\s*//g;
809 ${$args{port}} =~ s/\s*//g;
810
811 return ('FAIL',"Port and weight are required, and must be numeric")
812 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
813
814 ${$args{fields}} = "distance,weight,port,";
815 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
816
817 return ('OK','OK');
818} # done SRV record
819
820# Now the custom types
821
822# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
823sub _validate_65280 {
824 my $self = shift;
825 my $dbh = $self->{dbh};
826
827 my %args = @_;
828
829 my $code = 'OK';
830 my $msg = 'OK';
831
832 if ($args{defrec} eq 'n') {
833 # live record; revrec determines whether we validate the PTR or A component first.
834
835 if ($args{revrec} eq 'y') {
836 ($code,$msg) = $self->_validate_12(%args);
837 return ($code,$msg) if $code eq 'FAIL';
838
839 # check A+PTR is really v4
840 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
841 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
842 # check AAAA+PTR is really v6
843 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
844 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
845
846 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
847 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
848 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
849 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
850 $msg .= "\n$addmsg" if $code eq 'WARN';
851 $msg = $addmsg if $code eq 'OK';
852 ${$args{rectype}} = $reverse_typemap{PTR};
853 return ('WARN', $msg);
854 }
855
856 # Add domain ID to field list and values
857 ${$args{fields}} .= "domain_id,";
858 push @{$args{vallist}}, ${$args{domid}};
859
860 } else {
861 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
862 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
863 return ($code,$msg) if $code eq 'FAIL';
864
865 # Check if the requested reverse zone exists - note, an IP fragment won't
866 # work here since we don't *know* which parent to put it in.
867 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
868 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
869 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
870 if (!$revid) {
871 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
872 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
873 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
874 return ('WARN', $msg);
875 }
876
877 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
878 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
879 if ($args{update}) {
880 # Record update. There should usually be an existing PTR (the record being updated)
881 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
882 " WHERE val = ?", undef, (${$args{val}})) };
883 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
884 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
885 $code = 'WARN';
886 }
887 } else {
888 # New record. Always warn if a PTR exists
889 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
890 " WHERE val = ?", undef, (${$args{val}}));
891 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
892 if $ptrcount;
893 $code = 'WARN' if $ptrcount;
894 }
895
896# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
897# " WHERE val = ?", undef, ${$args{val}});
898# if ($ptrcount) {
899# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
900# " WHERE val = ?
901# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
902# $code = 'WARN';
903# }
904
905 ${$args{fields}} .= "rdns_id,";
906 push @{$args{vallist}}, $revid;
907 }
908
909 } else { # defrec eq 'y'
910 if ($args{revrec} eq 'y') {
911 ($code,$msg) = $self->_validate_12(%args);
912 return ($code,$msg) if $code eq 'FAIL';
913 if (${$args{rectype}} == 65280) {
914 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
915 if ${$args{val}} =~ /:/;
916 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
917 } elsif (${$args{rectype}} == 65281) {
918 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
919 if ${$args{val}} =~ /\./;
920 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
921 }
922 } else {
923 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
924 # domains, since you wouldn't be able to substitute both domain and reverse zone
925 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
926 # confuse the hell out of pretty much anything that uses them.
927##fixme: make this a config flag?
928 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
929 }
930 }
931
932 return ($code, $msg);
933} # done A+PTR record
934
935# AAAA+PTR record
936# A+PTR above has been magicked to handle AAAA+PTR as well.
937sub _validate_65281 {
938 return _validate_65280(@_);
939} # done AAAA+PTR record
940
941# PTR template record
942sub _validate_65282 {
943 my $self = shift;
944 my $dbh = $self->{dbh};
945
946 my %args = @_;
947
948 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
949 if ($args{revrec} eq 'y') {
950 if ($args{defrec} eq 'n') {
951 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
952 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
953##fixme: warn if $args{val} is not /31 or larger block?
954 ${$args{val}} = "$args{addr}";
955 } else {
956 if (${$args{val}} =~ /\./) {
957 # looks like a v4 or fragment
958 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
959 # woo! a complete IP! validate it and normalize, or fail.
960 $args{addr} = NetAddr::IP->new(${$args{val}})
961 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
962 ${$args{val}} = "$args{addr}";
963 } else {
964 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
965 }
966 } elsif (${$args{val}} =~ /[a-f:]/) {
967 # looks like a v6 or fragment
968 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
969 if ($args{addr}) {
970 if ($args{addr}->addr =~ /^0/) {
971 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
972 } else {
973 ${$args{val}} = "$args{addr}";
974 }
975 }
976 } else {
977 # bare number (probably). These could be v4 or v6, so we'll
978 # expand on these on creation of a reverse zone.
979 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
980 }
981 }
982##fixme: validate %-patterns?
983
984# Unlike single PTR records, there is absolutely no way to sanely support multiple
985# PTR templates for the same block, since they expect to expand to all the individual
986# IPs on export. Nested templates should be supported though.
987
988 my @checkvals = (${$args{val}});
989 if (${$args{val}} =~ /,/) {
990 # push . and :: variants into checkvals if val has ,
991 my $tmp;
992 ($tmp = ${$args{val}}) =~ s/,/./;
993 push @checkvals, $tmp;
994 ($tmp = ${$args{val}}) =~ s/,/::/;
995 push @checkvals, $tmp;
996 }
997##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
998# Per Netblock such that they don't conflict on export
999 my $typeck;
1000# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
1001 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
1002# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
1003 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
1004# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
1005 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
1006 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
1007 "AND (type=65282 OR $typeck)");
1008 foreach my $checkme (@checkvals) {
1009 $pcsth->execute($checkme);
1010 my ($rc) = $pcsth->fetchrow_array;
1011 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
1012 }
1013
1014 } else {
1015 return ('FAIL', "Forward zones cannot contain PTR records");
1016 }
1017
1018 return ('OK','OK');
1019} # done PTR template record
1020
1021# A+PTR template record
1022sub _validate_65283 {
1023 my $self = shift;
1024 my $dbh = $self->{dbh};
1025
1026 my %args = @_;
1027
1028 my ($code,$msg) = ('OK','OK');
1029
1030##fixme: need to fiddle things since A+PTR templates are acceptable in live
1031# forward zones but not default records
1032 if ($args{defrec} eq 'n') {
1033 if ($args{revrec} eq 'n') {
1034 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
1035 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
1036 return ($code,$msg) if $code eq 'FAIL';
1037
1038 # Check if the requested reverse zone exists - note, an IP fragment won't
1039 # work here since we don't *know* which parent to put it in.
1040 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
1041 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1042 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
1043 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
1044 if (!$revid) {
1045 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
1046 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
1047##fixme: add A template, AAAA template types?
1048# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
1049 return ('FAIL', $msg);
1050 }
1051
1052 # Add reverse zone ID to field list and values
1053 ${$args{fields}} .= "rdns_id,";
1054 push @{$args{vallist}}, $revid;
1055
1056 } else {
1057 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
1058 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
1059 ${$args{val}} = "$args{addr}";
1060
1061 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
1062 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
1063 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
1064 $msg .= "\n$addmsg" if $code eq 'WARN';
1065 $msg = $addmsg if $code eq 'OK';
1066 ${$args{rectype}} = 65282;
1067 return ('WARN', $msg);
1068 }
1069
1070 # Add domain ID to field list and values
1071 ${$args{fields}} .= "domain_id,";
1072 push @{$args{vallist}}, ${$args{domid}};
1073 }
1074
1075 } else {
1076 my ($code,$msg) = $self->_validate_65282(%args);
1077 return ($code, $msg) if $code eq 'FAIL';
1078 # get domain, check against ${$args{name}}
1079 }
1080
1081 return ('OK','OK');
1082} # done AAAA+PTR template record
1083
1084# AAAA+PTR template record
1085sub _validate_65284 {
1086 return ('OK','OK');
1087} # done AAAA+PTR template record
1088
1089# Delegation record
1090# This is essentially a specialized clone of the NS record, primarily useful
1091# for delegating IPv4 sub-/24 reverse blocks
1092sub _validate_65285 {
1093 my $self = shift;
1094 my $dbh = $self->{dbh};
1095
1096 my %args = @_;
1097
1098# Almost, but not quite, identical to NS record validation.
1099
1100 # Check that the target of the record is within the parent.
1101 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
1102 if ($args{defrec} eq 'n') {
1103 # Check if IP/address/zone/"subzone" is within the parent
1104 if ($args{revrec} eq 'y') {
1105 my $tmpip = NetAddr::IP->new(${$args{val}});
1106 my $pname = $self->revName($args{id});
1107 return ('FAIL',"${$args{val}} not within $pname")
1108 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
1109 # Normalize
1110 ${$args{val}} = "$tmpip";
1111 } else {
1112 my $pname = $self->domainName($args{id});
1113 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
1114 }
1115 } else {
1116 return ('FAIL',"Delegation records are not permitted in default record sets");
1117 }
1118 return ('OK','OK');
1119}
1120
1121
1122##
1123## Record data substitution subs
1124##
1125
1126# Replace ZONE in hostname, or create (most of) the actual proper zone name
1127sub _ZONE {
1128 my $zone = shift;
1129 my $string = shift;
1130 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
1131 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
1132
1133 my $prefix;
1134
1135 $string =~ s/,/./ if !$zone->{isv6};
1136 $string =~ s/,/::/ if $zone->{isv6};
1137
1138 # Subbing ZONE in the host. We need to properly ID the netblock range
1139 # The subbed text should have "network IP with trailing zeros stripped" for
1140 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
1141 # For blocks that do NOT line up on these boundaries, we take the most
1142 # significant octet or 16-bit chunk of the "broadcast" IP and append it
1143 # after a double-dash
1144 # ie:
1145 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1146 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1147 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1148 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1149 # Similar for v6
1150
1151 if (!$zone->{isv6}) { # IPv4
1152
1153 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1154 # a funky subnet that had host bits set.
1155 my $bc = $zone->broadcast->addr;
1156
1157 if ($zone->masklen > 24) {
1158 $bc =~ s/^\d+\.\d+\.\d+\.//;
1159 } elsif ($zone->masklen > 16) {
1160 $prefix =~ s/\.0$//;
1161 $bc =~ s/^\d+\.\d+\.//;
1162 } elsif ($zone->masklen > 8) {
1163 $bc =~ s/^\d+\.//;
1164 $prefix =~ s/\.0\.0$//;
1165 } else {
1166 $prefix =~ s/\.0\.0\.0$//;
1167 }
1168 if ($zone->masklen % 8) {
1169 $bc =~ s/(\.255)+$//;
1170 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1171 }
1172 if ($fr eq 'f') {
1173 $prefix =~ s/\.+/$sep/g;
1174 } else {
1175 $prefix = join($sep, reverse(split(/\./, $prefix)));
1176 }
1177
1178 } else { # IPv6
1179
1180 if ($fr eq 'f') {
1181
1182 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1183 # a funky subnet that had host bits set.
1184 my $bc = $zone->broadcast->addr;
1185 if (($zone->masklen % 16) != 0) {
1186 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1187 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1188 $prefix =~ s/:0$//;
1189 $bc =~ s/:ffff$//;
1190 }
1191 # Strip the leading 16-bit chunks off the front of the broadcast IP
1192 $bc =~ s/^([a-f0-9]+:)+//;
1193 # Append the remaining 16-bit chunk to the prefix after "--"
1194 $prefix .= "--$bc";
1195 } else {
1196 # Strip off :0 from the end until we reach the netblock length.
1197 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1198 $prefix =~ s/:0$//;
1199 }
1200 }
1201 # Actually deal with the separator
1202 $prefix =~ s/:/$sep/g;
1203
1204 } else { # $fr eq 'f'
1205
1206 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1207 # a funky subnet that had host bits set.
1208 my $bc = $zone->broadcast->full;
1209 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1210 $bc =~ s/://g;
1211 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1212 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1213 $prefix =~ s/0$//;
1214 $bc =~ s/f$//;
1215 }
1216 # Split and reverse the order of the nibbles in the network/broadcast IPs
1217 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1218 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1219 my @nbits = reverse split //, $prefix;
1220 my @bbits = reverse split //, $bc;
1221 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1222 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1223 # Glue it back together
1224 $prefix = join($sep, @nbits);
1225
1226 } # $fr ne 'f'
1227
1228 } # $zone->{isv6}
1229
1230 # Do the substitution, finally
1231 $string =~ s/ZONE/$prefix/;
1232 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1233 return $string;
1234} # done _ZONE()
1235
1236# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1237# given the .arpa zone name, return the CIDR netblock the zone is for.
1238# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1239# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1240# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1241sub _zone2cidr {
1242 my $zone = shift;
1243
1244 my $cidr;
1245 my $tmpcidr;
1246 my $warnmsg = '';
1247
1248 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1249 # v4 revzone, formal zone name type
1250 my $tmpzone = $zone;
1251 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name [$tmpzone]")
1252 if $tmpzone !~ m{^(?:\d+[/-])?[\d\.]+\.in-addr\.arpa\.?$};
1253 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1254
1255 # Snag the octet pieces
1256 my @octs = split /\./, $tmpzone;
1257
1258 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1259 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1260 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1261 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1262 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1263 );
1264
1265 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1266 # Need to take the size of the range to offset the basic octet-based mask length,
1267 # and make sure the first number in the range gets used as the network address for the block
1268 # Alternate form: The second number is actually the real netmask, not the end of the range.
1269 my $masklen = 0;
1270 if ($octs[0] =~ m{^((\d+)[/-](\d+))$}) { # take the range...
1271 if (24 < $3 && $3 < 31) {
1272 # we have a real netmask
1273 $masklen = -$maskmap{$3};
1274 } else {
1275 # we have a range. NB: only real CIDR ranges are supported
1276 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1277 }
1278 $octs[0] = $2; # set the base octet of the range...
1279 }
1280 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1281
1282# arguably we should only allow sub-octet range/mask in-addr.arpa
1283# specifications in the least significant octet, but the code is
1284# simpler if we deal with sub-octet delegations at any level.
1285
1286 # Now we find the "true" mask with the aid of the "base" calculated above
1287 if ($#octs == 0) {
1288 $masklen += 8;
1289 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1290 } elsif ($#octs == 1) {
1291 $masklen += 16;
1292 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1293 } elsif ($#octs == 2) {
1294 $masklen += 24;
1295 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1296 } else {
1297 $masklen += 32;
1298 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1299 }
1300
1301 } elsif ($zone =~ /\.ip6\.arpa\.?$/) {
1302 # v6 revzone, formal zone name type
1303 my $tmpzone = $zone;
1304##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1305 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name [$tmpzone]")
1306 if $tmpzone !~ /^[a-fA-F\d\.]+\.ip6\.arpa\.?$/;
1307 $tmpzone =~ s/\.ip6\.arpa\.?//;
1308 my @quads = reverse(split(/\./, $tmpzone));
1309 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1310 my $nc;
1311 foreach (@quads) {
1312 $tmpcidr .= $_;
1313 $tmpcidr .= ":" if ++$nc % 4 == 0 && $nc < $#quads;
1314 }
1315 my $nq = 1 if $nc % 4 != 0;
1316 my $mask = $nc * 4; # need to do this here because we probably increment it below
1317 while ($nc++ % 4 != 0) {
1318 $tmpcidr .= "0";
1319 }
1320 # polish it off with trailing ::/mask if this is a CIDR block instead of an IP
1321 $tmpcidr .= "::/$mask" if $mask != 128;
1322 }
1323
1324 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1325 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1326 unless $cidr = NetAddr::IP->new($tmpcidr);
1327
1328 if ($warnmsg) {
1329 $errstr = $warnmsg;
1330 return ('WARN', $cidr);
1331 }
1332 return ('OK', $cidr);
1333##fixme: use wantarray() to decide what to return?
1334} # done _zone2cidr()
1335
1336# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1337# really have a sane way to handle this type of expansion at the moment
1338# due to the size of the address space.
1339# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1340sub _template4_expand {
1341 my $tmpl = shift;
1342 my $ip = shift;
1343
1344 my @ipparts = split /\./, $ip;
1345 my @iphex;
1346 my @ippad;
1347 for (@ipparts) {
1348 push @iphex, sprintf("%x", $_);
1349 push @ippad, sprintf("%0.3u", $_);
1350 }
1351
1352 # IP substitutions in template records:
1353 #major patterns:
1354 #dashed IP, forward and reverse
1355 #underscoreed IP, forward and reverse
1356 #dotted IP, forward and reverse (even if forward is... dumb)
1357 # -> %r for reverse, %i for forward, leading -, _, or . to indicate separator, defaults to -
1358 # %r or %-r => %4d-%3d-%2d-%1d
1359 # %_r => %4d_%3d_%2d_%1d
1360 # %.r => %4d.%3d.%2d.%1d
1361 # %i or %-i => %1d-%2d-%3d-%4d
1362 # %_i => %1d_%2d_%3d_%4d
1363 # %.i => %1d.%2d.%3d.%4d
1364 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1365 $$tmpl =~ s/\%([-._])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1366 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1367 $$tmpl =~ s/\%([-._])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1368
1369 #hex-coded IP
1370 # %h
1371 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1372
1373 #IP as decimal-coded 32-bit value
1374 # %d
1375 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1376 $$tmpl =~ s/\%d/$iptmp/g;
1377
1378 #minor patterns (per-octet)
1379 # %[1234][dh0]
1380 #octet
1381 #hex-coded octet
1382 #0-padded octet
1383 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1384 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1385 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1386} # _template4_expand()
1387
1388# Broad syntactic check on the hostname. Checks for valid characters, correctly-expandable template patterns.
1389# Takes the hostname, type, and live/default and forward/reverse flags
1390# Returns true/false, sets errstr on failures
1391sub _check_hostname_form {
1392 my ($hname,$rectype,$defrec,$revrec) = @_;
1393
1394 if ($hname =~ /\%/ && ($rectype == 65282 || $rectype == 65283) ) {
1395 my $tmphost = $hname;
1396 # we don't actually need to test with the real IP passed; that saves a bit of fiddling.
1397 _template4_expand(\$tmphost, '10.10.10.10');
1398 if ($tmphost =~ /\%/) {
1399 $errstr = "Invalid template $hname";
1400 return;
1401 }
1402 } elsif ($revrec eq 'y') {
1403 # Reverse zones don't support @ in hostnames
1404 # Also skip failure on revzone TXT records; the hostname contains the TXT content in that case.
1405 if ($rectype != $reverse_typemap{TXT} && lc($hname) !~ /^[0-9a-z_.-]+$/) {
1406 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1407 return;
1408 }
1409 } else {
1410 if (lc($hname) !~ /^(?:\*\.)?(?:[0-9a-z_.-]+|@)$/) {
1411 # Don't mention @, because it would be far too wordy to explain the nuance of @
1412 $errstr = "Hostnames may not contain anything other than (0-9 a-z . _)";
1413 return;
1414 }
1415 }
1416 return 1;
1417} # _check_hostname_form()
1418
1419
1420##
1421## Initialization and cleanup subs
1422##
1423
1424## DNSDB::__cfgload()
1425# Private sub to parse a config file and load it into %config
1426# Takes a filename and a hashref to put the parsed entries in
1427sub __cfgload {
1428 $errstr = '';
1429 my $cfgfile = shift;
1430 my $cfg = shift;
1431
1432 if (open CFG, "<$cfgfile") {
1433 while (<CFG>) {
1434 chomp;
1435 s/^\s*//;
1436 next if /^#/;
1437 next if /^$/;
1438# hmm. more complex bits in this file might require [heading] headers, maybe?
1439# $mode = $1 if /^\[(a-z)+]/;
1440 # DB connect info
1441 $cfg->{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1442 $cfg->{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1443 $cfg->{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1444 $cfg->{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1445 # Mail settings
1446 $cfg->{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1447 $cfg->{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1448 $cfg->{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1449 $cfg->{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1450 $cfg->{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1451 $cfg->{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1452 # session - note this is fed directly to CGI::Session
1453 $cfg->{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1454 $cfg->{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1455 # misc
1456 $cfg->{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1457 $cfg->{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1458 $cfg->{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1459 $cfg->{usecache} = $1 if m{^usecache\s*=\s*([a-z01]+)}i;
1460 $cfg->{force_refresh} = $1 if /^force_refresh\s*=\s*([a-z01]+)/i;
1461 $cfg->{lowercase} = $1 if /^lowercase\s*=\s*([a-z01]+)/i;
1462 $cfg->{showrev_arpa} = $1 if /^showrev_arpa\s*=\s*([a-z]+)/i;
1463# not supported in dns.cgi yet
1464# $cfg->{templatedir} = $1 if m{^templatedir\s*=\s*([a-z0-9/_.-]+)}i;
1465# $cfg->{templateoverride} = $1 if m{^templateoverride\s*=\s*([a-z0-9/_.-]+)}i;
1466 # RPC options
1467 $cfg->{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1468 $cfg->{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1469 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1470 my @ips = split /[,\s]+/, $tmp;
1471 my $rpcsys = shift @ips;
1472 push @{$cfg->{rpcacl}{$rpcsys}}, @ips;
1473 }
1474 }
1475 close CFG;
1476 } else {
1477 $errstr = "Couldn't load configuration file $cfgfile: $!";
1478 return;
1479 }
1480 return 1;
1481} # end __cfgload()
1482
1483
1484## DNSDB::connectDB()
1485# Creates connection to DNS database.
1486# Requires the database name, username, and password.
1487# Returns a handle to the db or undef on failure.
1488# Set up for a PostgreSQL db; could be any transactional DBMS with the
1489# right changes.
1490# Called by new(); not intended to be called publicly.
1491sub connectDB {
1492 $errstr = '';
1493 my $dbname = shift;
1494 my $user = shift;
1495 my $pass = shift;
1496 my $dbh;
1497 my $DSN = "DBI:Pg:dbname=$dbname";
1498
1499 my $host = shift;
1500 $DSN .= ";host=$host" if $host;
1501
1502# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1503# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1504 $dbh = DBI->connect($DSN, $user, $pass, {
1505 AutoCommit => 1,
1506 PrintError => 0
1507 });
1508 if (!$dbh) {
1509 $errstr = $DBI::errstr;
1510 return;
1511 }
1512#) if(!$dbh);
1513
1514 local $dbh->{RaiseError} = 1;
1515
1516 eval {
1517##fixme: initialize the DB if we can't find the table (since, by definition, there's
1518# nothing there if we can't select from it...)
1519 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1520 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1521# return (undef,$DBI::errstr) if $dbh->err;
1522
1523#if ($tblcount == 0) {
1524# # create tables one at a time, checking for each.
1525# return (undef, "check table misc missing");
1526#}
1527
1528# Return here if we can't select.
1529# This should retrieve the dbversion key.
1530 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1531 $sth->execute();
1532# return (undef,$DBI::errstr) if ($sth->err);
1533
1534##fixme: do stuff to the DB on version mismatch
1535# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1536# DB should be downward-compatible; column defaults should give sane (if possibly
1537# useless-and-needs-help) values in columns an older software stack doesn't know about.
1538
1539# See if the select returned anything (or null data). This should
1540# succeed if the select executed, but...
1541 $sth->fetchrow();
1542# return (undef,$DBI::errstr) if ($sth->err);
1543
1544 $sth->finish;
1545
1546 }; # wrapped DB checks
1547 if ($@) {
1548 $errstr = $@;
1549 return;
1550 }
1551
1552# If we get here, we should be OK.
1553 return $dbh;
1554} # end connectDB
1555
1556
1557## DNSDB::finish()
1558# Cleans up after database handles and so on.
1559# Requires a database handle
1560sub finish {
1561 my $self = shift;
1562 $self->{dbh}->disconnect;
1563} # end finish
1564
1565
1566## DNSDB::initGlobals()
1567# Initialize global variables
1568# NB: this does NOT include web-specific session variables!
1569sub initGlobals {
1570 my $self = shift;
1571 my $dbh = $self->{dbh};
1572
1573# load record types from database
1574 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1575 $sth->execute;
1576 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1577 $typemap{$recval} = $recname;
1578 $reverse_typemap{$recname} = $recval;
1579 # now we fill the record validation function hash
1580 if ($stdflag < 5) {
1581 my $fn = "_validate_$recval";
1582 $validators{$recval} = \&$fn;
1583 } else {
1584 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1585 $validators{$recval} = eval $fn;
1586 }
1587 }
1588} # end initGlobals
1589
1590
1591## DNSDB::initRPC()
1592# Takes a remote username and remote fullname.
1593# Sets up the RPC logging-pseudouser if needed.
1594# Sets the %userdata hash for logging.
1595# Returns undef on failure
1596sub initRPC {
1597 my $self = shift;
1598 my $dbh = $self->{dbh};
1599 my %args = @_;
1600
1601 return if !$args{username};
1602 return if !$args{fullname};
1603
1604 $args{username} = "$args{username}/$args{rpcsys}";
1605
1606 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1607 " FROM users WHERE username=?", undef, ($args{username}) );
1608 if (!$tmpuser) {
1609 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1610 ($args{username}, $args{fullname}) );
1611 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1612 " FROM users WHERE username=?", undef, ($args{username}) );
1613 }
1614 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
1615 $self->{loguserid} = $tmpuser->{userid};
1616 $self->{logusername} = $tmpuser->{username};
1617 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
1618 return 1 if $tmpuser;
1619} # end initRPC()
1620
1621
1622## DNSDB::login()
1623# Takes a database handle, username and password
1624# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1625# password matches the one on file, and account is not disabled
1626# Returns undef otherwise
1627sub login {
1628 my $self = shift;
1629 my $dbh = $self->{dbh};
1630 my $user = shift;
1631 my $pass = shift;
1632
1633 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1634 " FROM users WHERE username=?",
1635 undef, ($user) );
1636 return if !$userinfo;
1637 return if !$userinfo->{status};
1638
1639 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1640 # native passwords (crypt-md5)
1641 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1642 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1643 # VegaDNS import (hex-coded MD5)
1644 return if $userinfo->{password} ne md5_hex($pass);
1645 } else {
1646 # plaintext (convenient now and then)
1647 return if $userinfo->{password} ne $pass;
1648 }
1649
1650 return $userinfo;
1651} # end login()
1652
1653
1654## DNSDB::initActionLog()
1655# Set up action logging. Takes a database handle and user ID
1656# Sets some internal globals and Does The Right Thing to set up a logging channel.
1657# This sets up _log() to spew out log entries to the defined channel without worrying
1658# about having to open a file or a syslog channel
1659##fixme Need to call _initActionLog_blah() for various logging channels, configured
1660# via dnsdb.conf, in $self->{log_channel} or something
1661# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1662sub initActionLog {
1663 my $self = shift;
1664 my $dbh = $self->{dbh};
1665 my $uid = shift;
1666
1667 return if !$uid;
1668
1669 # snag user info for logging. there's got to be a way to not have to pass this back
1670 # and forth from a caller, but web usage means no persistence we can rely on from
1671 # the server side.
1672 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1673 " FROM users WHERE user_id=?", undef, ($uid));
1674##fixme: errors are unpossible!
1675
1676 $self->{logusername} = $username;
1677 $self->{loguserid} = $uid;
1678 $self->{logfullname} = $fullname;
1679
1680 # convert to real check once we have other logging channels
1681 # if ($self->{log_channel} eq 'sql') {
1682 # Open Log, Sez Me!
1683 # }
1684
1685} # end initActionLog
1686
1687
1688## DNSDB::getPermissions()
1689# Get permissions from DB
1690# Requires DB handle, group or user flag, ID, and hashref.
1691sub getPermissions {
1692 my $self = shift;
1693 my $dbh = $self->{dbh};
1694
1695 my $type = shift;
1696 my $id = shift;
1697 my $hash = shift;
1698
1699 my $sql = qq(
1700 SELECT
1701 p.admin,p.self_edit,
1702 p.group_create,p.group_edit,p.group_delete,
1703 p.user_create,p.user_edit,p.user_delete,
1704 p.domain_create,p.domain_edit,p.domain_delete,
1705 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1706 p.location_create,p.location_edit,p.location_delete,p.location_view
1707 FROM permissions p
1708 );
1709 if ($type eq 'group') {
1710 $sql .= qq(
1711 JOIN groups g ON g.permission_id=p.permission_id
1712 WHERE g.group_id=?
1713 );
1714 } else {
1715 $sql .= qq(
1716 JOIN users u ON u.permission_id=p.permission_id
1717 WHERE u.user_id=?
1718 );
1719 }
1720
1721 my $sth = $dbh->prepare($sql);
1722
1723##fixme? we don't trap other plain SELECT errors
1724 $sth->execute($id);
1725
1726# my $permref = $sth->fetchrow_hashref;
1727# return $permref;
1728# $hash = $permref;
1729# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1730 ($hash->{admin},$hash->{self_edit},
1731 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1732 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1733 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1734 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1735 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1736 ) = $sth->fetchrow_array;
1737
1738} # end getPermissions()
1739
1740
1741## DNSDB::changePermissions()
1742# Update an ACL entry
1743# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1744sub changePermissions {
1745 my $self = shift;
1746 my $dbh = $self->{dbh};
1747 my $type = shift;
1748 my $id = shift;
1749 my $newperms = shift;
1750 my $inherit = shift || 0;
1751
1752 my $resultmsg = '';
1753
1754 # see if we're switching from inherited to custom. for bonus points,
1755 # snag the permid and parent permid anyway, since we'll need the permid
1756 # to set/alter custom perms, and both if we're switching from custom to
1757 # inherited.
1758 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1759 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1760 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1761 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1762 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1763 $sth->execute($id);
1764
1765 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1766
1767# hack phtoui
1768# group id 1 is "special" in that it's it's own parent (err... possibly.)
1769# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1770 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1771
1772 local $dbh->{AutoCommit} = 0;
1773 local $dbh->{RaiseError} = 1;
1774
1775 # Wrap all the SQL in a transaction
1776 eval {
1777 if ($inherit) {
1778
1779 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1780 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1781 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1782
1783 } else {
1784
1785 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1786##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1787# ... if'n'when we have groups with fully inherited permissions.
1788 # SQL is coo
1789 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1790 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1791 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1792 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1793 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1794 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1795 }
1796
1797 # and now set the permissions we were passed
1798 foreach (@permtypes) {
1799 if (defined ($newperms->{$_})) {
1800 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1801 }
1802 }
1803
1804 } # (inherited->)? custom
1805
1806 if ($type eq 'user') {
1807 $resultmsg = "Updated permissions for user $name";
1808 } else {
1809 $resultmsg = "Updated default permissions for group $name";
1810 }
1811 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
1812 $dbh->commit;
1813 }; # end eval
1814 if ($@) {
1815 my $msg = $@;
1816 eval { $dbh->rollback; };
1817 return ('FAIL',"Error changing permissions: $msg");
1818 }
1819
1820 return ('OK',$resultmsg);
1821} # end changePermissions()
1822
1823
1824## DNSDB::comparePermissions()
1825# Compare two permission hashes
1826# Returns '>', '<', '=', '!'
1827sub comparePermissions {
1828 my $self = shift;
1829 my $p1 = shift;
1830 my $p2 = shift;
1831
1832 my $retval = '='; # assume equality until proven otherwise
1833
1834 no warnings "uninitialized";
1835
1836 foreach (@permtypes) {
1837 next if $p1->{$_} == $p2->{$_}; # equal is good
1838 if ($p1->{$_} && !$p2->{$_}) {
1839 if ($retval eq '<') { # if we've already found an unequal pair where
1840 $retval = '!'; # $p2 has more access, and we now find a pair
1841 last; # where $p1 has more access, the overall access
1842 } # is neither greater or lesser, it's unequal.
1843 $retval = '>';
1844 }
1845 if (!$p1->{$_} && $p2->{$_}) {
1846 if ($retval eq '>') { # if we've already found an unequal pair where
1847 $retval = '!'; # $p1 has more access, and we now find a pair
1848 last; # where $p2 has more access, the overall access
1849 } # is neither greater or lesser, it's unequal.
1850 $retval = '<';
1851 }
1852 }
1853 return $retval;
1854} # end comparePermissions()
1855
1856
1857## DNSDB::changeGroup()
1858# Change group ID of an entity
1859# Takes a database handle, entity type, entity ID, and new group ID
1860sub changeGroup {
1861 my $self = shift;
1862 my $dbh = $self->{dbh};
1863 my $type = shift;
1864 my $id = shift;
1865 my $newgrp = shift;
1866
1867##fixme: fail on not enough args
1868 #return ('FAIL', "Missing
1869
1870 return ('FAIL', "Can't change the group of a $type")
1871 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1872
1873 # Collect some names for logging and messages
1874 my $entname;
1875 if ($type eq 'domain') {
1876 $entname = $self->domainName($id);
1877 } elsif ($type eq 'revzone') {
1878 $entname = $self->revName($id);
1879 } elsif ($type eq 'user') {
1880 $entname = $self->userFullName($id, '%u');
1881 } elsif ($type eq 'group') {
1882 $entname = $self->groupName($id);
1883 }
1884
1885 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1886 undef, ($id));
1887 my $oldgname = $self->groupName($oldgid);
1888 my $newgname = $self->groupName($newgrp);
1889
1890 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1891
1892 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1893
1894 # Allow transactions, and raise an exception on errors so we can catch it later.
1895 # Use local to make sure these get "reset" properly on exiting this block
1896 local $dbh->{AutoCommit} = 0;
1897 local $dbh->{RaiseError} = 1;
1898
1899 eval {
1900 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1901 # Log the change in both the old and new groups
1902 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
1903 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
1904 $dbh->commit;
1905 };
1906 if ($@) {
1907 my $msg = $@;
1908 eval { $dbh->rollback; };
1909 if ($self->{log_failures}) {
1910 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
1911 $dbh->commit; # since we enabled transactions earlier
1912 }
1913 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1914 }
1915
1916 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1917} # end changeGroup()
1918
1919
1920##
1921## Processing subs
1922##
1923
1924## DNSDB::addDomain()
1925# Add a domain
1926# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1927# and user info hash (for logging).
1928# Returns a status code and message
1929sub addDomain {
1930 $errstr = '';
1931 my $self = shift;
1932 my $dbh = $self->{dbh};
1933 my $domain = shift;
1934 return ('FAIL',"Domain must not be blank\n") if !$domain;
1935 my $group = shift;
1936 return ('FAIL',"Group must be specified\n") if !defined($group);
1937 my $state = shift;
1938 return ('FAIL',"Domain status must be specified\n") if !defined($state);
1939 my $defloc = shift || '';
1940
1941 $state = 1 if $state =~ /^active$/;
1942 $state = 1 if $state =~ /^on$/;
1943 $state = 0 if $state =~ /^inactive$/;
1944 $state = 0 if $state =~ /^off$/;
1945
1946 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1947
1948 $domain = lc($domain) if $self->{lowercase};
1949
1950 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1951
1952 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
1953 my $dom_id;
1954
1955# quick check to start to see if we've already got one
1956 $sth->execute($domain);
1957 ($dom_id) = $sth->fetchrow_array;
1958
1959 return ('FAIL', "Domain already exists") if $dom_id;
1960
1961 # Allow transactions, and raise an exception on errors so we can catch it later.
1962 # Use local to make sure these get "reset" properly on exiting this block
1963 local $dbh->{AutoCommit} = 0;
1964 local $dbh->{RaiseError} = 1;
1965
1966 # Wrap all the SQL in a transaction
1967 eval {
1968 # insert the domain...
1969 $dbh->do("INSERT INTO domains (domain,group_id,status,default_location) VALUES (?,?,?,?)", undef,
1970 ($domain, $group, $state, $defloc));
1971
1972 # get the ID...
1973 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1974 undef, ($domain));
1975
1976 $self->_log(domain_id => $dom_id, group_id => $group,
1977 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
1978
1979 # ... and now we construct the standard records from the default set. NB: group should be variable.
1980 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1981 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl,location)".
1982 " VALUES ($dom_id,?,?,?,?,?,?,?,?)");
1983 $sth->execute($group);
1984 while (my ($host, $type, $val, $dist, $weight, $port, $ttl) = $sth->fetchrow_array()) {
1985 $host =~ s/DOMAIN/$domain/g;
1986 $val =~ s/DOMAIN/$domain/g;
1987 $sth_in->execute($host, $type, $val, $dist, $weight, $port, $ttl, $defloc);
1988 if ($typemap{$type} eq 'SOA') {
1989 my @tmp1 = split /:/, $host;
1990 my @tmp2 = split /:/, $val;
1991 $self->_log(domain_id => $dom_id, group_id => $group,
1992 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1993 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
1994 } else {
1995 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1996 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1997 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1998 $self->_log(domain_id => $dom_id, group_id => $group,
1999 entry => $logentry." $val', TTL $ttl");
2000 }
2001 }
2002
2003 # once we get here, we should have suceeded.
2004 $dbh->commit;
2005 }; # end eval
2006
2007 if ($@) {
2008 my $msg = $@;
2009 eval { $dbh->rollback; };
2010 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
2011 if $self->{log_failures};
2012 $dbh->commit; # since we enabled transactions earlier
2013 return ('FAIL',$msg);
2014 } else {
2015 return ('OK',$dom_id);
2016 }
2017} # end addDomain
2018
2019
2020## DNSDB::delZone()
2021# Delete a forward or reverse zone.
2022# Takes a database handle, zone ID, and forward/reverse flag.
2023# for now, just delete the records, then the domain.
2024# later we may want to archive it in some way instead (status code 2, for example?)
2025sub delZone {
2026 my $self = shift;
2027 my $dbh = $self->{dbh};
2028 my $zoneid = shift;
2029 my $revrec = shift;
2030
2031 # Allow transactions, and raise an exception on errors so we can catch it later.
2032 # Use local to make sure these get "reset" properly on exiting this block
2033 local $dbh->{AutoCommit} = 0;
2034 local $dbh->{RaiseError} = 1;
2035
2036 my $msg = '';
2037 my $failmsg = '';
2038 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
2039
2040 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
2041
2042 # Set this up here since we may use if if $self->{log_failures} is enabled
2043 my %loghash;
2044 $loghash{domain_id} = $zoneid if $revrec eq 'n';
2045 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
2046 $loghash{group_id} = $self->parentID(
2047 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
2048
2049 # Wrap all the SQL in a transaction
2050 eval {
2051 # Disentangle custom record types before removing the
2052 # ones that are only in the zone to be deleted
2053 if ($revrec eq 'n') {
2054 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
2055 $failmsg = "Failure converting multizone types to single-zone";
2056 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
2057 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
2058 $sth->execute(65282, $zoneid, 65283);
2059 $sth->execute(65282, $zoneid, 65284);
2060 $failmsg = "Failure removing domain records";
2061 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
2062 $failmsg = "Failure removing domain";
2063 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
2064 } else {
2065 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
2066 $failmsg = "Failure converting multizone types to single-zone";
2067 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
2068 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
2069# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
2070# $sth->execute(65286?, $zoneid, 65283);
2071# $sth->execute(65286?, $zoneid, 65284);
2072 $failmsg = "Failure removing reverse records";
2073 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
2074 $failmsg = "Failure removing reverse zone";
2075 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
2076 }
2077
2078 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
2079 $loghash{entry} = $msg;
2080 $self->_log(%loghash);
2081
2082 # once we get here, we should have suceeded.
2083 $dbh->commit;
2084 }; # end eval
2085
2086 if ($@) {
2087 $msg = $@;
2088 eval { $dbh->rollback; };
2089 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
2090 if ($self->{log_failures}) {
2091 $self->_log(%loghash);
2092 $dbh->commit; # since we enabled transactions earlier
2093 }
2094 return ('FAIL', $loghash{entry});
2095 } else {
2096 return ('OK', $msg);
2097 }
2098
2099} # end delZone()
2100
2101
2102## DNSDB::domainName()
2103# Return the domain name based on a domain ID
2104# Takes a database handle and the domain ID
2105# Returns the domain name or undef on failure
2106sub domainName {
2107 $errstr = '';
2108 my $self = shift;
2109 my $dbh = $self->{dbh};
2110 my $domid = shift;
2111 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
2112 $errstr = $DBI::errstr if !$domname;
2113 return $domname if $domname;
2114} # end domainName()
2115
2116
2117## DNSDB::revName()
2118# Return the reverse zone name based on an rDNS ID
2119# Takes a database handle and the rDNS ID, and an optional flag to force return of the CIDR zone
2120# instead of the formal .arpa zone name
2121# Returns the reverse zone name or undef on failure
2122sub revName {
2123 $errstr = '';
2124 my $self = shift;
2125 my $dbh = $self->{dbh};
2126 my $revid = shift;
2127 my $cidrflag = shift || 'n';
2128 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
2129 $errstr = $DBI::errstr if !$revname;
2130 my $tmp = new NetAddr::IP $revname;
2131 $revname = _ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa')
2132 if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') && $cidrflag eq 'n';
2133 return $revname if $revname;
2134} # end revName()
2135
2136
2137## DNSDB::domainID()
2138# Takes a database handle and domain name
2139# Returns the domain ID number
2140sub domainID {
2141 $errstr = '';
2142 my $self = shift;
2143 my $dbh = $self->{dbh};
2144 my $domain = shift;
2145 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2146 undef, ($domain) );
2147 if (!$domid) {
2148 if ($dbh->err) {
2149 $errstr = $DBI::errstr;
2150 } else {
2151 $errstr = "Domain $domain not present";
2152 }
2153 }
2154 return $domid if $domid;
2155} # end domainID()
2156
2157
2158## DNSDB::revID()
2159# Takes a database handle and reverse zone name
2160# Returns the rDNS ID number
2161sub revID {
2162 $errstr = '';
2163 my $self = shift;
2164 my $dbh = $self->{dbh};
2165 my $revzone = shift;
2166 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2167 if (!$revid) {
2168 if ($dbh->err) {
2169 $errstr = $DBI::errstr;
2170 } else {
2171 $errstr = "Reverse zone $revzone not present";
2172 }
2173 }
2174 return $revid if $revid;
2175} # end revID()
2176
2177
2178## DNSDB::addRDNS
2179# Adds a reverse DNS zone
2180# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2181# and boolean(ish) state (active/inactive)
2182# Returns a status code and message
2183sub addRDNS {
2184 my $self = shift;
2185 my $dbh = $self->{dbh};
2186 my $zone = shift;
2187
2188 # Autodetect formal .arpa zones
2189 if ($zone =~ /\.arpa\.?$/) {
2190 my $code;
2191 ($code,$zone) = _zone2cidr($zone);
2192 return ('FAIL', $zone) if $code eq 'FAIL';
2193 }
2194 $zone = NetAddr::IP->new($zone);
2195
2196 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2197 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2198 my $group = shift;
2199 my $state = shift;
2200 my $defloc = shift || '';
2201
2202 $state = 1 if $state =~ /^active$/;
2203 $state = 1 if $state =~ /^on$/;
2204 $state = 0 if $state =~ /^inactive$/;
2205 $state = 0 if $state =~ /^off$/;
2206
2207 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2208
2209# quick check to start to see if we've already got one
2210 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2211
2212 return ('FAIL', "Zone already exists") if $rdns_id;
2213
2214 # Allow transactions, and raise an exception on errors so we can catch it later.
2215 # Use local to make sure these get "reset" properly on exiting this block
2216 local $dbh->{AutoCommit} = 0;
2217 local $dbh->{RaiseError} = 1;
2218
2219 my $warnstr = '';
2220 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2221 # wrong, we should have a value to override this anyway.
2222
2223 # Wrap all the SQL in a transaction
2224 eval {
2225 # insert the zone...
2226 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2227 ($zone, $group, $state, $defloc) );
2228
2229 # get the ID...
2230 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2231
2232 $self->_log(rdns_id => $rdns_id, group_id => $group,
2233 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2234
2235 # ... and now we construct the standard records from the default set. NB: group should be variable.
2236 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2237 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2238 " VALUES ($rdns_id,?,?,?,?,?,?)");
2239 $sth->execute($group);
2240 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2241 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2242 if ($zone->{isv6}) {
2243 next if ($type == 65280 || $type == 65283);
2244 } else {
2245 next if ($type == 65281 || $type == 65284);
2246 }
2247
2248 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
2249
2250 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2251 # On failure, tack a note on to a warning string and continue without adding this record.
2252 # While we're at it, we substitute $zone for ZONE in the value.
2253 if ($val eq 'ZONE') {
2254 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2255 next if $revpatt && ($type == 65282 || $type == 65283);
2256##fixme? do we care if we have multiple whole-zone templates?
2257 $val = $zone->network;
2258 } elsif ($val =~ /ZONE/) {
2259 my $tmpval = $val;
2260 $tmpval =~ s/ZONE//;
2261 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2262 # as either v4 or v6. May make this an off-by-default config flag
2263 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2264 if ($type == 12 || $type == 65282) {
2265 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2266 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2267 }
2268 my $addr;
2269 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2270 $val = $addr->addr;
2271 } else {
2272 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2273 next;
2274 }
2275 }
2276
2277 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2278 # NS records get this substitution on the value instead.
2279 $host = _ZONE($zone, $host) if $type != 2;
2280
2281 # Fill in the forward domain ID if we can find it, otherwise:
2282 # Coerce type down to PTR or PTR template if we can't
2283 my $domid = 0;
2284 if ($type >= 65280) {
2285 if (!($domid = $self->_hostparent($host))) {
2286 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2287 $type = $reverse_typemap{PTR};
2288 $domid = 0; # just to be explicit.
2289 }
2290 }
2291
2292 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2293
2294 if ($typemap{$type} eq 'SOA') {
2295 my @tmp1 = split /:/, $host;
2296 my @tmp2 = split /:/, $val;
2297 $self->_log(rdns_id => $rdns_id, group_id => $group,
2298 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2299 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2300 $defttl = $tmp2[3];
2301 } else {
2302 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2303 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2304 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2305 }
2306 }
2307
2308 # Generate record based on provided pattern.
2309 if ($revpatt) {
2310 my $host;
2311 my $type = ($zone->{isv6} ? 65284 : 65283);
2312 my $val = $zone->network;
2313
2314 # Substitute $zone for ZONE in the hostname.
2315 $host = _ZONE($zone, $revpatt);
2316
2317 my $domid = 0;
2318 if (!($domid = $self->_hostparent($host))) {
2319 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2320 $type = 65282;
2321 $domid = 0; # just to be explicit.
2322 }
2323
2324 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2325 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2326 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2327 entry => $logentry." $val', TTL $defttl from pattern");
2328 }
2329
2330 # If there are warnings (presumably about default records skipped for cause) log them
2331 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2332 if $warnstr;
2333
2334 # once we get here, we should have suceeded.
2335 $dbh->commit;
2336 }; # end eval
2337
2338 if ($@) {
2339 my $msg = $@;
2340 eval { $dbh->rollback; };
2341 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2342 if $self->{log_failures};
2343 $dbh->commit; # since we enabled transactions earlier
2344 return ('FAIL',$msg);
2345 } else {
2346 my $retcode = 'OK';
2347 if ($warnstr) {
2348 $resultstr = $warnstr;
2349 $retcode = 'WARN';
2350 }
2351 return ($retcode, $rdns_id);
2352 }
2353
2354} # end addRDNS()
2355
2356
2357## DNSDB::getZoneCount
2358# Get count of zones in group or groups
2359# Takes a database handle and hash containing:
2360# - the "current" group
2361# - an array of "acceptable" groups
2362# - a flag for forward/reverse zones
2363# - Optionally accept a "starts with" and/or "contains" filter argument
2364# Returns an integer count of the resulting zone list.
2365sub getZoneCount {
2366 my $self = shift;
2367 my $dbh = $self->{dbh};
2368
2369 my %args = @_;
2370
2371 # Fail on bad curgroup argument. There's no sane fallback on this one.
2372 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2373 $errstr = "Bad or missing curgroup argument";
2374 return;
2375 }
2376 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2377 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2378 $errstr = "Bad childlist argument";
2379 return;
2380 }
2381
2382 my @filterargs;
2383 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2384 push @filterargs, "^$args{startwith}" if $args{startwith};
2385 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2386 push @filterargs, $args{filter} if $args{filter};
2387
2388 my $sql;
2389 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2390 if ($args{revrec} eq 'n') {
2391 $sql = "SELECT count(*) FROM domains".
2392 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2393 ($args{startwith} ? " AND domain ~* ?" : '').
2394 ($args{filter} ? " AND domain ~* ?" : '');
2395 } else {
2396 $sql = "SELECT count(*) FROM revzones".
2397 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2398 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2399# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2400 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2401 # we want to match both the formal and natural zone name
2402 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2403 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2404# } else {
2405# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2406# }
2407 }
2408 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2409 return $count;
2410} # end getZoneCount()
2411
2412
2413## DNSDB::getZoneList()
2414# Get a list of zones in the specified group(s)
2415# Takes the same arguments as getZoneCount() above
2416# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2417sub getZoneList {
2418 my $self = shift;
2419 my $dbh = $self->{dbh};
2420
2421 my %args = @_;
2422
2423 my @zonelist;
2424
2425 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2426 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2427
2428 # Fail on bad curgroup argument. There's no sane fallback on this one.
2429 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2430 $errstr = "Bad or missing curgroup argument";
2431 return;
2432 }
2433 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2434 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2435 $errstr = "Bad childlist argument";
2436 return;
2437 }
2438
2439 my @filterargs;
2440 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2441 push @filterargs, "^$args{startwith}" if $args{startwith};
2442 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2443 push @filterargs, $args{filter} if $args{filter};
2444
2445 my $sql;
2446 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2447 if ($args{revrec} eq 'n') {
2448 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2449 $sql = "SELECT domain_id AS zoneid,domain AS zone,status,groups.group_name AS group FROM domains".
2450 " INNER JOIN groups ON domains.group_id=groups.group_id".
2451 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2452 ($args{startwith} ? " AND domain ~* ?" : '').
2453 ($args{filter} ? " AND domain ~* ?" : '');
2454 } else {
2455##fixme: arguably startwith here is irrelevant. depends on the UI though.
2456 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2457 $sql = "SELECT rdns_id AS zoneid,revnet AS zone,status,groups.group_name AS group FROM revzones".
2458 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2459 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2460 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2461# if ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all') {
2462 # Just In Case the UI is using formal .arpa notation, and someone enters something reversed,
2463 # we want to match both the formal and natural zone name
2464 $sql .= ($args{filter} ? " AND (CAST(revnet AS VARCHAR) ~* ? OR CAST(revnet AS VARCHAR) ~* ?)" : '');
2465 push @filterargs, join('[.]',reverse(split(/\[\.\]/,$args{filter}))) if $args{filter};
2466# } else {
2467# $sql .= ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2468# }
2469 }
2470 # A common tail.
2471 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2472 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage}".
2473 " OFFSET ".$args{offset}*$self->{perpage});
2474
2475 my @working;
2476 my $zsth = $dbh->prepare($sql);
2477 $zsth->execute(@filterargs);
2478 while (my $zone = $zsth->fetchrow_hashref) {
2479 if ($args{revrec} eq 'y' && ($self->{showrev_arpa} eq 'zone' || $self->{showrev_arpa} eq 'all')) {
2480 my $tmp = new NetAddr::IP $zone->{zone};
2481 $zone->{zone} = DNSDB::_ZONE($tmp, 'ZONE', 'r', '.').($tmp->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
2482 }
2483 push @working, $zone;
2484 }
2485 return \@working;
2486} # end getZoneList()
2487
2488
2489## DNSDB::getZoneLocation()
2490# Retrieve the default location for a zone.
2491# Takes a database handle, forward/reverse flag, and zone ID
2492sub getZoneLocation {
2493 my $self = shift;
2494 my $dbh = $self->{dbh};
2495 my $revrec = shift;
2496 my $zoneid = shift;
2497
2498 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2499 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2500 undef, ($zoneid));
2501 return $loc;
2502} # end getZoneLocation()
2503
2504
2505## DNSDB::addGroup()
2506# Add a group
2507# Takes a database handle, group name, parent group, hashref for permissions,
2508# and optional template-vs-cloneme flag for the default records
2509# Returns a status code and message
2510sub addGroup {
2511 $errstr = '';
2512 my $self = shift;
2513 my $dbh = $self->{dbh};
2514 my $groupname = shift;
2515 my $pargroup = shift;
2516 my $permissions = shift;
2517
2518 # 0 indicates "custom", hardcoded.
2519 # Any other value clones that group's default records, if it exists.
2520 my $inherit = shift || 0;
2521##fixme: need a flag to indicate clone records or <?> ?
2522
2523 # Allow transactions, and raise an exception on errors so we can catch it later.
2524 # Use local to make sure these get "reset" properly on exiting this block
2525 local $dbh->{AutoCommit} = 0;
2526 local $dbh->{RaiseError} = 1;
2527
2528 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2529
2530 return ('FAIL', "Group already exists") if $group_id;
2531
2532 # Wrap all the SQL in a transaction
2533 eval {
2534 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2535
2536 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2537
2538 # We work through the whole set of permissions instead of specifying them so
2539 # that when we add a new permission, we don't have to change the code anywhere
2540 # that doesn't explicitly deal with that specific permission.
2541 my @permvals;
2542 foreach (@permtypes) {
2543 if (!defined ($permissions->{$_})) {
2544 push @permvals, 0;
2545 } else {
2546 push @permvals, $permissions->{$_};
2547 }
2548 }
2549 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2550 undef, ($groupid, @permvals) );
2551 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2552 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2553
2554 # Default records
2555 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2556 "VALUES ($groupid,?,?,?,?,?,?,?)");
2557 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2558 "VALUES ($groupid,?,?,?,?)");
2559 if ($inherit) {
2560 # Duplicate records from parent. Actually relying on inherited records feels
2561 # very fragile, and it would be problematic to roll over at a later time.
2562 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2563 $sth2->execute($pargroup);
2564 while (my @clonedata = $sth2->fetchrow_array) {
2565 $sthf->execute(@clonedata);
2566 }
2567 # And now the reverse records
2568 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2569 $sth2->execute($pargroup);
2570 while (my @clonedata = $sth2->fetchrow_array) {
2571 $sthr->execute(@clonedata);
2572 }
2573 } else {
2574##fixme: Hardcoding is Bad, mmmmkaaaay?
2575 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2576 # could load from a config file, but somewhere along the line we need hardcoded bits.
2577 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2578 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2579 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2580 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2581 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2582 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2583 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2584 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2585 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2586 }
2587
2588 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2589
2590 # once we get here, we should have suceeded.
2591 $dbh->commit;
2592 }; # end eval
2593
2594 if ($@) {
2595 my $msg = $@;
2596 eval { $dbh->rollback; };
2597 if ($self->{log_failures}) {
2598 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2599 $dbh->commit;
2600 }
2601 return ('FAIL',$msg);
2602 }
2603
2604 return ('OK','OK');
2605} # end addGroup()
2606
2607
2608## DNSDB::delGroup()
2609# Delete a group.
2610# Takes a group ID
2611# Returns a status code and message
2612sub delGroup {
2613 my $self = shift;
2614 my $dbh = $self->{dbh};
2615 my $groupid = shift;
2616
2617 # Allow transactions, and raise an exception on errors so we can catch it later.
2618 # Use local to make sure these get "reset" properly on exiting this block
2619 local $dbh->{AutoCommit} = 0;
2620 local $dbh->{RaiseError} = 1;
2621
2622##fixme: locate "knowable" error conditions and deal with them before the eval
2623# ... or inside, whatever.
2624# -> domains still exist in group
2625# -> ...
2626 my $failmsg = '';
2627 my $resultmsg = '';
2628
2629 # collect some pieces for logging and error messages
2630 my $groupname = $self->groupName($groupid);
2631 my $parid = $self->parentID(id => $groupid, type => 'group');
2632
2633 # Wrap all the SQL in a transaction
2634 eval {
2635 # Check for Things in the group
2636 $failmsg = "Can't remove group $groupname";
2637 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2638 die "$grpcnt groups still in group\n" if $grpcnt;
2639 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2640 die "$domcnt domains still in group\n" if $domcnt;
2641 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
2642 die "$revcnt reverse zones still in group\n" if $revcnt;
2643 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2644 die "$usercnt users still in group\n" if $usercnt;
2645
2646 $failmsg = "Failed to delete default records for $groupname";
2647 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2648 $failmsg = "Failed to delete default reverse records for $groupname";
2649 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2650 $failmsg = "Failed to remove group $groupname";
2651 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2652
2653 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
2654 $resultmsg = "Deleted group $groupname";
2655
2656 # once we get here, we should have suceeded.
2657 $dbh->commit;
2658 }; # end eval
2659
2660 if ($@) {
2661 my $msg = $@;
2662 eval { $dbh->rollback; };
2663 if ($self->{log_failures}) {
2664 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
2665 $dbh->commit; # since we enabled transactions earlier
2666 }
2667 return ('FAIL',"$failmsg: $msg");
2668 }
2669
2670 return ('OK',$resultmsg);
2671} # end delGroup()
2672
2673
2674## DNSDB::getChildren()
2675# Get a list of all groups whose parent^n is group <n>
2676# Takes a database handle, group ID, reference to an array to put the group IDs in,
2677# and an optional flag to return only immediate children or all children-of-children
2678# default to returning all children
2679# Calls itself
2680sub getChildren {
2681 $errstr = '';
2682 my $self = shift;
2683 my $dbh = $self->{dbh};
2684 my $rootgroup = shift;
2685 my $groupdest = shift;
2686 my $immed = shift || 'all';
2687
2688 # special break for default group; otherwise we get stuck.
2689 if ($rootgroup == 1) {
2690 # by definition, group 1 is the Root Of All Groups
2691 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2692 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2693 $sth->execute;
2694 while (my @this = $sth->fetchrow_array) {
2695 push @$groupdest, @this;
2696 }
2697 } else {
2698 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2699 $sth->execute($rootgroup);
2700 return if $sth->rows == 0;
2701 my @grouplist;
2702 while (my ($group) = $sth->fetchrow_array) {
2703 push @$groupdest, $group;
2704 $self->getChildren($group, $groupdest) if $immed eq 'all';
2705 }
2706 }
2707} # end getChildren()
2708
2709
2710## DNSDB::groupName()
2711# Return the group name based on a group ID
2712# Takes a database handle and the group ID
2713# Returns the group name or undef on failure
2714sub groupName {
2715 $errstr = '';
2716 my $self = shift;
2717 my $dbh = $self->{dbh};
2718 my $groupid = shift;
2719 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2720 $sth->execute($groupid);
2721 my ($groupname) = $sth->fetchrow_array();
2722 $errstr = $DBI::errstr if !$groupname;
2723 return $groupname if $groupname;
2724} # end groupName
2725
2726
2727## DNSDB::getGroupCount()
2728# Get count of subgroups in group or groups
2729# Takes a database handle and hash containing:
2730# - the "current" group
2731# - an array of "acceptable" groups
2732# - Optionally accept a "starts with" and/or "contains" filter argument
2733# Returns an integer count of the resulting group list.
2734sub getGroupCount {
2735 my $self = shift;
2736 my $dbh = $self->{dbh};
2737
2738 my %args = @_;
2739
2740 # Fail on bad curgroup argument. There's no sane fallback on this one.
2741 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2742 $errstr = "Bad or missing curgroup argument";
2743 return;
2744 }
2745 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2746 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2747 $errstr = "Bad childlist argument";
2748 return;
2749 }
2750
2751 my @filterargs;
2752 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2753 push @filterargs, "^$args{startwith}" if $args{startwith};
2754 push @filterargs, $args{filter} if $args{filter};
2755
2756 my $sql = "SELECT count(*) FROM groups ".
2757 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2758 ($args{startwith} ? " AND group_name ~* ?" : '').
2759 ($args{filter} ? " AND group_name ~* ?" : '');
2760 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2761 $errstr = $dbh->errstr if !$count;
2762 return $count;
2763} # end getGroupCount
2764
2765
2766## DNSDB::getGroupList()
2767# Get a list of sub^n-groups in the specified group(s)
2768# Takes the same arguments as getGroupCount() above
2769# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2770sub getGroupList {
2771 my $self = shift;
2772 my $dbh = $self->{dbh};
2773
2774 my %args = @_;
2775
2776 # Fail on bad curgroup argument. There's no sane fallback on this one.
2777 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2778 $errstr = "Bad or missing curgroup argument";
2779 return;
2780 }
2781 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2782 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2783 $errstr = "Bad childlist argument";
2784 return;
2785 }
2786
2787 my @filterargs;
2788 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2789 push @filterargs, "^$args{startwith}" if $args{startwith};
2790 push @filterargs, $args{filter} if $args{filter};
2791
2792 # protection against bad or missing arguments
2793 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2794 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
2795 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2796
2797 # munge sortby for columns in database
2798 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2799 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2800
2801 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
2802 FROM groups g
2803 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2804 ).
2805 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2806 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2807 ($args{filter} ? " AND g.group_name ~* ?" : '').
2808 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2809 " ORDER BY $args{sortby} $args{sortorder} ".
2810 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
2811 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2812 $errstr = $dbh->errstr if !$glist;
2813
2814 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
2815 # this means there's lots of crunching needed to trim the result set back down.
2816 # So instead we track the order of the groups, and push the counts into the
2817 # arrayref result separately.
2818##fixme: put this whole sub in a transaction? might be
2819# needed for accurate results on very busy systems.
2820##fixme: large group lists need prepared statements?
2821#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
2822#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
2823#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
2824 foreach (@{$glist}) {
2825 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
2826 $$_{nusers} = $ucnt;
2827 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
2828 $$_{ndomains} = $dcnt;
2829 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
2830 $$_{nrevzones} = $rcnt;
2831 }
2832
2833 return $glist;
2834} # end getGroupList
2835
2836
2837## DNSDB::groupID()
2838# Return the group ID based on the group name
2839# Takes a database handle and the group name
2840# Returns the group ID or undef on failure
2841sub groupID {
2842 $errstr = '';
2843 my $self = shift;
2844 my $dbh = $self->{dbh};
2845 my $group = shift;
2846 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
2847 $errstr = $DBI::errstr if !$grpid;
2848 return $grpid if $grpid;
2849} # end groupID()
2850
2851
2852## DNSDB::addUser()
2853# Add a user.
2854# Takes a DB handle, username, group ID, password, state (active/inactive).
2855# Optionally accepts:
2856# user type (user/admin) - defaults to user
2857# permissions string - defaults to inherit from group
2858# three valid forms:
2859# i - Inherit permissions
2860# c:<user_id> - Clone permissions from <user_id>
2861# C:<permission list> - Set these specific permissions
2862# first name - defaults to username
2863# last name - defaults to blank
2864# phone - defaults to blank (could put other data within column def)
2865# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2866sub addUser {
2867 $errstr = '';
2868 my $self = shift;
2869 my $dbh = $self->{dbh};
2870 my $username = shift;
2871 my $group = shift;
2872 my $pass = shift;
2873 my $state = shift;
2874
2875 return ('FAIL', "Missing one or more required entries") if !defined($state);
2876 return ('FAIL', "Username must not be blank") if !$username;
2877
2878 # Munge in some alternate state values
2879 $state = 1 if $state =~ /^active$/;
2880 $state = 1 if $state =~ /^on$/;
2881 $state = 0 if $state =~ /^inactive$/;
2882 $state = 0 if $state =~ /^off$/;
2883
2884 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2885
2886 my $permstring = shift || 'i'; # default is to inhert permissions from group
2887
2888 my $fname = shift || $username;
2889 my $lname = shift || '';
2890 my $phone = shift || ''; # not going format-check
2891
2892 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2893 my $user_id;
2894
2895# quick check to start to see if we've already got one
2896 $sth->execute($username);
2897 ($user_id) = $sth->fetchrow_array;
2898
2899 return ('FAIL', "User already exists") if $user_id;
2900
2901 # Allow transactions, and raise an exception on errors so we can catch it later.
2902 # Use local to make sure these get "reset" properly on exiting this block
2903 local $dbh->{AutoCommit} = 0;
2904 local $dbh->{RaiseError} = 1;
2905
2906 # Wrap all the SQL in a transaction
2907 eval {
2908 # insert the user... note we set inherited perms by default since
2909 # it's simple and cleans up some other bits of state
2910##fixme: need better handling of case of inherited or missing (!!) permissions entries
2911 my $sth = $dbh->prepare("INSERT INTO users ".
2912 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2913 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2914 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2915
2916 # get the ID...
2917 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2918
2919# Permissions! Gotta set'em all!
2920 die "Invalid permission string $permstring\n"
2921 if $permstring !~ /^(?:
2922 i # inherit
2923 |c:\d+ # clone
2924 # custom. no, the leading , is not a typo
2925 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
2926 )$/x;
2927# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2928 if ($permstring ne 'i') {
2929 # for cloned or custom permissions, we have to create a new permissions entry.
2930 my $clonesrc = $group;
2931 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2932 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2933 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2934 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2935 undef, ($user_id,$clonesrc) );
2936 $dbh->do("UPDATE users SET permission_id=".
2937 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2938 "WHERE user_id=?", undef, ($user_id, $user_id) );
2939 }
2940 if ($permstring =~ /^C:/) {
2941 # finally for custom permissions, we set the passed-in permissions (and unset
2942 # any that might have been brought in by the clone operation above)
2943 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2944 undef, ($user_id) );
2945 foreach (@permtypes) {
2946 if ($permstring =~ /,$_/) {
2947 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2948 } else {
2949 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2950 }
2951 }
2952 }
2953
2954 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2955
2956##fixme: add another table to hold name/email for log table?
2957
2958 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
2959 # once we get here, we should have suceeded.
2960 $dbh->commit;
2961 }; # end eval
2962
2963 if ($@) {
2964 my $msg = $@;
2965 eval { $dbh->rollback; };
2966 if ($self->{log_failures}) {
2967 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
2968 $dbh->commit; # since we enabled transactions earlier
2969 }
2970 return ('FAIL',"Error adding user $username: $msg");
2971 }
2972
2973 return ('OK',"User $username ($fname $lname) added");
2974} # end addUser
2975
2976
2977## DNSDB::getUserCount()
2978# Get count of users in group
2979# Takes a database handle and hash containing at least the current group, and optionally:
2980# - a reference list of secondary groups
2981# - a filter string
2982# - a "Starts with" string
2983sub getUserCount {
2984 my $self = shift;
2985 my $dbh = $self->{dbh};
2986
2987 my %args = @_;
2988
2989 # Fail on bad curgroup argument. There's no sane fallback on this one.
2990 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2991 $errstr = "Bad or missing curgroup argument";
2992 return;
2993 }
2994 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2995 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2996 $errstr = "Bad childlist argument";
2997 return;
2998 }
2999
3000 my @filterargs;
3001 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3002 push @filterargs, "^$args{startwith}" if $args{startwith};
3003 push @filterargs, $args{filter} if $args{filter};
3004
3005 my $sql = "SELECT count(*) FROM users ".
3006 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3007 ($args{startwith} ? " AND username ~* ?" : '').
3008 ($args{filter} ? " AND username ~* ?" : '');
3009 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3010 $errstr = $dbh->errstr if !$count;
3011 return $count;
3012} # end getUserCount()
3013
3014
3015## DNSDB::getUserList()
3016# Get list of users
3017# Takes the same arguments as getUserCount() above, plus optional:
3018# - sort field
3019# - sort order
3020# - offset/return-all-everything flag (defaults to $perpage records)
3021sub getUserList {
3022 my $self = shift;
3023 my $dbh = $self->{dbh};
3024
3025 my %args = @_;
3026
3027 # Fail on bad curgroup argument. There's no sane fallback on this one.
3028 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3029 $errstr = "Bad or missing curgroup argument";
3030 return;
3031 }
3032 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3033 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3034 $errstr = "Bad childlist argument";
3035 return;
3036 }
3037
3038 my @filterargs;
3039 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3040 push @filterargs, "^$args{startwith}" if $args{startwith};
3041 push @filterargs, $args{filter} if $args{filter};
3042
3043 # better to request sorts on "simple" names, but it means we need to map it to real columns
3044 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3045 fname => 'fname');
3046 $args{sortby} = $sortmap{$args{sortby}};
3047
3048 # protection against bad or missing arguments
3049 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3050 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3051 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3052
3053 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
3054 "FROM users u ".
3055 "INNER JOIN groups g ON u.group_id=g.group_id ".
3056 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3057 ($args{startwith} ? " AND u.username ~* ?" : '').
3058 ($args{filter} ? " AND u.username ~* ?" : '').
3059 " AND NOT u.type = 'R' ".
3060 " ORDER BY $args{sortby} $args{sortorder} ".
3061 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3062 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3063 $errstr = $dbh->errstr if !$ulist;
3064 return $ulist;
3065} # end getUserList()
3066
3067
3068## DNSDB::getUserDropdown()
3069# Get a list of usernames for use in a dropdown menu.
3070# Takes a database handle, current group, and optional "tag this as selected" flag.
3071# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3072sub getUserDropdown {
3073 my $self = shift;
3074 my $dbh = $self->{dbh};
3075 my $grp = shift;
3076 my $sel = shift || 0;
3077
3078 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
3079 $sth->execute($grp);
3080
3081 my @userlist;
3082 while (my ($username,$uid) = $sth->fetchrow_array) {
3083 my %row = (
3084 username => $username,
3085 uid => $uid,
3086 selected => ($sel == $uid ? 1 : 0)
3087 );
3088 push @userlist, \%row;
3089 }
3090 return \@userlist;
3091} # end getUserDropdown()
3092
3093
3094## DNSDB:: updateUser()
3095# Update general data about user
3096sub updateUser {
3097 my $self = shift;
3098 my $dbh = $self->{dbh};
3099
3100##fixme: tweak calling convention so that we can update any given bit of data
3101 my $uid = shift;
3102 my $username = shift;
3103 my $group = shift;
3104 my $pass = shift;
3105 my $state = shift;
3106 my $type = shift || 'u';
3107 my $fname = shift || $username;
3108 my $lname = shift || '';
3109 my $phone = shift || ''; # not going format-check
3110
3111 my $resultmsg = '';
3112
3113 # Munge in some alternate state values
3114 $state = 1 if $state =~ /^active$/;
3115 $state = 1 if $state =~ /^on$/;
3116 $state = 0 if $state =~ /^inactive$/;
3117 $state = 0 if $state =~ /^off$/;
3118
3119 # Allow transactions, and raise an exception on errors so we can catch it later.
3120 # Use local to make sure these get "reset" properly on exiting this block
3121 local $dbh->{AutoCommit} = 0;
3122 local $dbh->{RaiseError} = 1;
3123
3124 my $sth;
3125
3126 # Password can be left blank; if so we assume there's one on file.
3127 # Actual blank passwords are bad, mm'kay?
3128 if (!$pass) {
3129 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
3130 } else {
3131 $pass = unix_md5_crypt($pass);
3132 }
3133
3134 eval {
3135 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
3136 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
3137 $resultmsg = "Updated user info for $username ($fname $lname)";
3138 $self->_log(group_id => $group, entry => $resultmsg);
3139 $dbh->commit;
3140 };
3141 if ($@) {
3142 my $msg = $@;
3143 eval { $dbh->rollback; };
3144 if ($self->{log_failures}) {
3145 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
3146 $dbh->commit; # since we enabled transactions earlier
3147 }
3148 return ('FAIL',"Error updating user $username: $msg");
3149 }
3150
3151 return ('OK',$resultmsg);
3152} # end updateUser()
3153
3154
3155## DNSDB::delUser()
3156# Delete a user.
3157# Takes a database handle and user ID
3158# Returns a success/failure code and matching message
3159sub delUser {
3160 my $self = shift;
3161 my $dbh = $self->{dbh};
3162 my $userid = shift;
3163
3164 return ('FAIL',"Bad userid") if !defined($userid);
3165
3166 my $userdata = $self->getUserData($userid);
3167
3168 # Allow transactions, and raise an exception on errors so we can catch it later.
3169 # Use local to make sure these get "reset" properly on exiting this block
3170 local $dbh->{AutoCommit} = 0;
3171 local $dbh->{RaiseError} = 1;
3172
3173 eval {
3174 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3175 $self->_log(group_id => $userdata->{group_id},
3176 entry => "Deleted user ID $userid/".$userdata->{username}.
3177 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3178 $dbh->commit;
3179 };
3180 if ($@) {
3181 my $msg = $@;
3182 eval { $dbh->rollback; };
3183 if ($self->{log_failures}) {
3184 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3185 "$userid/".$userdata->{username}.": $msg");
3186 $dbh->commit;
3187 }
3188 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3189 }
3190
3191 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3192} # end delUser
3193
3194
3195## DNSDB::userFullName()
3196# Return a pretty string!
3197# Takes a user_id and optional printf-ish string to indicate which pieces where:
3198# %u for the username
3199# %f for the first name
3200# %l for the last name
3201# All other text in the passed string will be left as-is.
3202##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3203sub userFullName {
3204 $errstr = '';
3205 my $self = shift;
3206 my $dbh = $self->{dbh};
3207 my $userid = shift;
3208 my $fullformat = shift || '%f %l (%u)';
3209 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3210 $sth->execute($userid);
3211 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3212 $errstr = $DBI::errstr if !$uname;
3213
3214 $fullformat =~ s/\%u/$uname/g;
3215 $fullformat =~ s/\%f/$fname/g;
3216 $fullformat =~ s/\%l/$lname/g;
3217
3218 return $fullformat;
3219} # end userFullName
3220
3221
3222## DNSDB::userStatus()
3223# Sets and/or returns a user's status
3224# Takes a database handle, user ID and optionally a status argument
3225# Returns undef on errors.
3226sub userStatus {
3227 my $self = shift;
3228 my $dbh = $self->{dbh};
3229 my $id = shift;
3230 my $newstatus = shift || 'mu';
3231
3232 return undef if $id !~ /^\d+$/;
3233
3234 my $userdata = $self->getUserData($id);
3235
3236 # Allow transactions, and raise an exception on errors so we can catch it later.
3237 # Use local to make sure these get "reset" properly on exiting this block
3238 local $dbh->{AutoCommit} = 0;
3239 local $dbh->{RaiseError} = 1;
3240
3241 if ($newstatus ne 'mu') {
3242 # ooo, fun! let's see what we were passed for status
3243 eval {
3244 $newstatus = 0 if $newstatus eq 'useroff';
3245 $newstatus = 1 if $newstatus eq 'useron';
3246 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3247
3248 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3249 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3250
3251 my %loghash;
3252 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3253 $loghash{entry} = $resultstr;
3254 $self->_log(%loghash);
3255
3256 $dbh->commit;
3257 };
3258 if ($@) {
3259 my $msg = $@;
3260 eval { $dbh->rollback; };
3261 $resultstr = '';
3262 $errstr = $msg;
3263##fixme: failure logging?
3264 return;
3265 }
3266 }
3267
3268 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3269 return $status;
3270} # end userStatus()
3271
3272
3273## DNSDB::getUserData()
3274# Get misc user data for display
3275sub getUserData {
3276 my $self = shift;
3277 my $dbh = $self->{dbh};
3278 my $uid = shift;
3279
3280 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3281 "FROM users WHERE user_id=?");
3282 $sth->execute($uid);
3283 return $sth->fetchrow_hashref();
3284} # end getUserData()
3285
3286
3287## DNSDB::addLoc()
3288# Add a new location.
3289# Takes a database handle, group ID, short and long description, and a comma-separated
3290# list of IP addresses.
3291# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3292sub addLoc {
3293 my $self = shift;
3294 my $dbh = $self->{dbh};
3295 my $grp = shift;
3296 my $shdesc = shift;
3297 my $comments = shift;
3298 my $iplist = shift;
3299
3300 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3301 $comments = '' if !$comments;
3302 $iplist = '' if !$iplist;
3303
3304 my $loc;
3305
3306 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3307 # for now; 676 locations should satisfy all but the largest of the huge networks.
3308 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3309 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3310
3311# add just after "my $origloc = $loc;":
3312# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3313# # and wrap it around.
3314# # Yes, they skip a couple of possibles. No, I don't care.
3315# $loc = 'aA' if $loc eq 'zz';
3316# $loc = 'Aa' if $loc eq 'zZ';
3317# $loc = 'ZA' if $loc eq 'Zz';
3318# $loc = 'aa' if $loc eq 'ZZ';
3319
3320 # Allow transactions, and raise an exception on errors so we can catch it later.
3321 # Use local to make sure these get "reset" properly on exiting this block
3322 local $dbh->{AutoCommit} = 0;
3323 local $dbh->{RaiseError} = 1;
3324
3325##fixme: There is probably a far better way to do this. Sequential increments
3326# are marginally less stupid that pure random generation though, and the existence
3327# check makes sure we don't stomp on an imported one.
3328
3329 eval {
3330 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3331 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3332 ($loc) = ($loc =~ /^(..)/) if $loc;
3333 my $origloc = $loc;
3334 $loc = 'aa' if !$loc;
3335 # Make a change...
3336 $loc++;
3337 # ... and keep changing if it exists
3338 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3339 $loc++;
3340 ($loc) = ($loc =~ /^(..)/);
3341 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3342##fixme: really need to handle this case faster somehow
3343#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3344 }
3345 # And now we should have a unique location. tinydns fundamentally limits the
3346 # number of these but there's no doc on what characters are valid.
3347 $shdesc = $loc if !$shdesc;
3348 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3349 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3350 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3351 $dbh->commit;
3352 };
3353 if ($@) {
3354 my $msg = $@;
3355 eval { $dbh->rollback; };
3356 if ($self->{log_failures}) {
3357 $shdesc = $loc if !$shdesc;
3358 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3359 $dbh->commit;
3360 }
3361 return ('FAIL',$msg);
3362 }
3363
3364 return ('OK',$loc);
3365} # end addLoc()
3366
3367
3368## DNSDB::updateLoc()
3369# Update details of a location.
3370# Takes a database handle, location ID, group ID, short description,
3371# long comments/notes, and comma/space-separated IP list
3372# Returns a result code and message
3373sub updateLoc {
3374 my $self = shift;
3375 my $dbh = $self->{dbh};
3376 my $loc = shift;
3377 my $grp = shift;
3378 my $shdesc = shift;
3379 my $comments = shift;
3380 my $iplist = shift;
3381
3382 $shdesc = '' if !$shdesc;
3383 $comments = '' if !$comments;
3384 $iplist = '' if !$iplist;
3385
3386 # Allow transactions, and raise an exception on errors so we can catch it later.
3387 # Use local to make sure these get "reset" properly on exiting this block
3388 local $dbh->{AutoCommit} = 0;
3389 local $dbh->{RaiseError} = 1;
3390
3391 my $oldloc = $self->getLoc($loc);
3392 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3393
3394 eval {
3395 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3396 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3397 $self->_log(entry => $okmsg);
3398 $dbh->commit;
3399 };
3400 if ($@) {
3401 my $msg = $@;
3402 eval { $dbh->rollback; };
3403 if ($self->{log_failures}) {
3404 $shdesc = $loc if !$shdesc;
3405 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3406 $dbh->commit;
3407 }
3408 return ('FAIL',$msg);
3409 }
3410
3411 return ('OK',$okmsg);
3412} # end updateLoc()
3413
3414
3415## DNSDB::delLoc()
3416sub delLoc {
3417 my $self = shift;
3418 my $dbh = $self->{dbh};
3419 my $loc = shift;
3420
3421 # Allow transactions, and raise an exception on errors so we can catch it later.
3422 # Use local to make sure these get "reset" properly on exiting this block
3423 local $dbh->{AutoCommit} = 0;
3424 local $dbh->{RaiseError} = 1;
3425
3426 my $oldloc = $self->getLoc($loc);
3427 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3428 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3429
3430 eval {
3431 # Check for records with this location first. Deleting a location without deleting records
3432 # tagged for that location will render them unpublished without other warning.
3433 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3434 die "Records still exist in location $olddesc\n" if $r;
3435 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3436 $self->_log(entry => $okmsg);
3437 $dbh->commit;
3438 };
3439 if ($@) {
3440 my $msg = $@;
3441 eval { $dbh->rollback; };
3442 if ($self->{log_failures}) {
3443 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3444 $dbh->commit;
3445 }
3446 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3447 }
3448
3449 return ('OK',$okmsg);
3450} # end delLoc()
3451
3452
3453## DNSDB::getLoc()
3454# Get details about a location/view
3455# Takes a database handle and location ID.
3456# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3457sub getLoc {
3458 my $self = shift;
3459 my $dbh = $self->{dbh};
3460 my $loc = shift;
3461
3462 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3463 $sth->execute($loc);
3464 return $sth->fetchrow_hashref();
3465} # end getLoc()
3466
3467
3468## DNSDB::getLocCount()
3469# Get count of locations/views
3470# Takes a database handle and hash containing at least the current group, and optionally:
3471# - a reference list of secondary groups
3472# - a filter string
3473# - a "Starts with" string
3474sub getLocCount {
3475 my $self = shift;
3476 my $dbh = $self->{dbh};
3477
3478 my %args = @_;
3479
3480 # Fail on bad curgroup argument. There's no sane fallback on this one.
3481 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3482 $errstr = "Bad or missing curgroup argument";
3483 return;
3484 }
3485 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3486 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3487 $errstr = "Bad childlist argument";
3488 return;
3489 }
3490
3491 my @filterargs;
3492 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3493 push @filterargs, "^$args{startwith}" if $args{startwith};
3494 push @filterargs, $args{filter} if $args{filter};
3495
3496 my $sql = "SELECT count(*) FROM locations ".
3497 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3498 ($args{startwith} ? " AND description ~* ?" : '').
3499 ($args{filter} ? " AND description ~* ?" : '');
3500 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3501 $errstr = $dbh->errstr if !$count;
3502 return $count;
3503} # end getLocCount()
3504
3505
3506## DNSDB::getLocList()
3507sub getLocList {
3508 my $self = shift;
3509 my $dbh = $self->{dbh};
3510
3511 my %args = @_;
3512
3513 # Fail on bad curgroup argument. There's no sane fallback on this one.
3514 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3515 $errstr = "Bad or missing curgroup argument";
3516 return;
3517 }
3518 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3519 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3520 $errstr = "Bad childlist argument";
3521 return;
3522 }
3523
3524 my @filterargs;
3525 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3526 push @filterargs, "^$args{startwith}" if $args{startwith};
3527 push @filterargs, $args{filter} if $args{filter};
3528
3529 # better to request sorts on "simple" names, but it means we need to map it to real columns
3530# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3531# fname => 'fname');
3532# $args{sortby} = $sortmap{$args{sortby}};
3533
3534 # protection against bad or missing arguments
3535 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3536 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3537 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3538
3539 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3540 "FROM locations l ".
3541 "INNER JOIN groups g ON l.group_id=g.group_id ".
3542 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3543 ($args{startwith} ? " AND l.description ~* ?" : '').
3544 ($args{filter} ? " AND l.description ~* ?" : '').
3545 " ORDER BY $args{sortby} $args{sortorder} ".
3546 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
3547 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3548 $errstr = $dbh->errstr if !$ulist;
3549 return $ulist;
3550} # end getLocList()
3551
3552
3553## DNSDB::getLocDropdown()
3554# Get a list of location names for use in a dropdown menu.
3555# Takes a database handle, current group, and optional "tag this as selected" flag.
3556# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3557sub getLocDropdown {
3558 my $self = shift;
3559 my $dbh = $self->{dbh};
3560 my $grp = shift;
3561 my $sel = shift || '';
3562
3563 my $sth = $dbh->prepare(qq(
3564 SELECT description,location FROM locations
3565 WHERE group_id=?
3566 ORDER BY description
3567 ) );
3568 $sth->execute($grp);
3569
3570 my @loclist;
3571 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3572 while (my ($locname, $loc) = $sth->fetchrow_array) {
3573 my %row = (
3574 locname => $locname,
3575 loc => $loc,
3576 selected => ($sel eq $loc ? 1 : 0)
3577 );
3578 push @loclist, \%row;
3579 }
3580 return \@loclist;
3581} # end getLocDropdown()
3582
3583
3584## DNSDB::getSOA()
3585# Return all suitable fields from an SOA record in separate elements of a hash
3586# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3587sub getSOA {
3588 $errstr = '';
3589 my $self = shift;
3590 my $dbh = $self->{dbh};
3591 my $def = shift;
3592 my $rev = shift;
3593 my $id = shift;
3594
3595 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3596 # - should really attach serial to the zone parent somewhere
3597
3598 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3599 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3600 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3601 return if !$ret;
3602##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3603
3604 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3605 delete $ret->{host};
3606 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3607 delete $ret->{val};
3608
3609 return $ret;
3610} # end getSOA()
3611
3612
3613## DNSDB::updateSOA()
3614# Update the specified SOA record
3615# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3616# Returns a two-element list with a result code and message
3617sub updateSOA {
3618 my $self = shift;
3619 my $dbh = $self->{dbh};
3620 my $defrec = shift;
3621 my $revrec = shift;
3622
3623 my %soa = @_;
3624
3625 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
3626
3627 my $msg;
3628 my %logdata;
3629 if ($defrec eq 'n') {
3630 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3631 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3632 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
3633 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
3634 } else {
3635 $logdata{group_id} = $soa{id};
3636 }
3637 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
3638 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
3639
3640 # Allow transactions, and raise an exception on errors so we can catch it later.
3641 # Use local to make sure these get "reset" properly on exiting this block
3642 local $dbh->{AutoCommit} = 0;
3643 local $dbh->{RaiseError} = 1;
3644
3645 eval {
3646 if (!$oldsoa) {
3647 # old SOA record is missing for some reason. create a new one.
3648 my $sql = "INSERT INTO "._rectable($defrec, $revrec)." ("._recparent($defrec, $revrec).
3649 ", host, type, val, ttl) VALUES (?,?,6,?,?)";
3650 $dbh->do($sql, undef, ($soa{id}, "$soa{contact}:$soa{prins}",
3651 "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}", $soa{ttl}) );
3652 $msg = ($defrec eq 'y' ? ($revrec eq 'y' ? 'Default reverse ' : 'Default ') : '').
3653 "SOA missing for $parname; added (ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3654 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3655 } else {
3656 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3657 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3658 $soa{ttl}, $oldsoa->{record_id}) );
3659 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3660 "SOA for $parname: ".
3661 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3662 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3663 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3664 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3665 }
3666 $logdata{entry} = $msg;
3667 $self->_log(%logdata);
3668
3669 $dbh->commit;
3670 };
3671 if ($@) {
3672 $msg = $@;
3673 eval { $dbh->rollback; };
3674 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3675 "SOA record for $parname: $msg";
3676 if ($self->{log_failures}) {
3677 $self->_log(%logdata);
3678 $dbh->commit;
3679 }
3680 return ('FAIL', $logdata{entry});
3681 } else {
3682 return ('OK', $msg);
3683 }
3684} # end updateSOA()
3685
3686
3687## DNSDB::getRecLine()
3688# Return all data fields for a zone record in separate elements of a hash
3689# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3690sub getRecLine {
3691 $errstr = '';
3692 my $self = shift;
3693 my $dbh = $self->{dbh};
3694 my $defrec = shift;
3695 my $revrec = shift;
3696 my $id = shift;
3697
3698##fixme: do we need a knob to twist to switch between unix epoch and postgres time string?
3699 my $sql = "SELECT record_id,host,type,val,ttl".
3700 ($defrec eq 'n' ? ',location' : '').
3701 ($revrec eq 'n' ? ',distance,weight,port' : '').
3702 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id,stamp,stamp < now() AS ispast,expires,stampactive FROM ').
3703 _rectable($defrec,$revrec)." WHERE record_id=?";
3704 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3705
3706 if ($dbh->err) {
3707 $errstr = $DBI::errstr;
3708 return undef;
3709 }
3710
3711 if (!$ret) {
3712 $errstr = "No such record";
3713 return undef;
3714 }
3715
3716 # explicitly set a parent id
3717 if ($defrec eq 'y') {
3718 $ret->{parid} = $ret->{group_id};
3719 } else {
3720 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3721 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3722 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3723 }
3724 $ret->{address} = $ret->{val}; # because.
3725
3726 return $ret;
3727}
3728
3729
3730##fixme: should use above (getRecLine()) to get lines for below?
3731## DNSDB::getRecList()
3732# Return records for a group or zone
3733# Takes a default/live flag, group or zone ID, start,
3734# number of records, sort field, and sort order
3735# Returns a reference to an array of hashes
3736sub getRecList {
3737 $errstr = '';
3738 my $self = shift;
3739 my $dbh = $self->{dbh};
3740
3741 my %args = @_;
3742
3743 # protection against bad or missing arguments
3744 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3745 my $defsort;
3746 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
3747 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
3748 $args{sortby} = '' if !$args{sortby};
3749 $args{sortby} = $defsort if !$args{revrec};
3750 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
3751 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3752 my $perpage = ($args{nrecs} ? $args{nrecs} : $self->{perpage});
3753
3754 # sort reverse zones on IP, correctly
3755 # do other fiddling with $args{sortby} while we're at it.
3756 # whee! multisort means just passing comma-separated fields in sortby!
3757 my $newsort = '';
3758 foreach my $sf (split /,/, $args{sortby}) {
3759 $sf = "r.$sf";
3760 $sf =~ s/r\.val/inetlazy(r.val)/
3761 if $args{revrec} eq 'y' && $args{defrec} eq 'n';
3762 $sf =~ s/r\.type/t.alphaorder/;
3763 $newsort .= ",$sf";
3764 }
3765 $newsort =~ s/^,//;
3766
3767 my @bindvars = ($args{id});
3768 push @bindvars, ($args{filter},$args{filter}) if $args{filter};
3769
3770##fixme: do we need a knob to twist to switch from unix epoch to postgres time string?
3771 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3772 $sql .= ",l.description AS locname,stamp,r.stamp < now() AS ispast,r.expires,r.stampactive"
3773 if $args{defrec} eq 'n';
3774 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
3775 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
3776 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3777 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
3778 $sql .= "WHERE "._recparent($args{defrec},$args{revrec})." = ?";
3779 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3780 if ($args{filter}) {
3781 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
3782 my $tmp = join('.',reverse(split(/\./,$args{filter})));
3783 push @bindvars, ($tmp, $tmp);
3784 }
3785 $sql .= " ORDER BY $newsort $args{sortorder}";
3786 # ensure consistent ordering by sorting on record_id too
3787 $sql .= ", record_id $args{sortorder}";
3788 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
3789
3790 my @working;
3791 my $recsth = $dbh->prepare($sql);
3792 $recsth->execute(@bindvars);
3793 while (my $rec = $recsth->fetchrow_hashref) {
3794 if ($args{revrec} eq 'y' && $args{defrec} eq 'n' &&
3795 ($self->{showrev_arpa} eq 'record' || $self->{showrev_arpa} eq 'all') &&
3796 $rec->{val} !~ /\.arpa$/ ) {
3797 # skip all reverse zone .arpa "hostnames" since they're already .arpa names.
3798##enhance: extend {showrev_arpa} eq 'record' to specify record types
3799 my $tmpip = new NetAddr::IP $rec->{val};
3800 $rec->{val} = DNSDB::_ZONE($tmpip, 'ZONE', 'r', '.').($tmpip->{isv6} ? '.ip6.arpa' : '.in-addr.arpa') if $tmpip;
3801 }
3802 push @working, $rec;
3803 }
3804 return \@working;
3805} # end getRecList()
3806
3807
3808## DNSDB::getRecCount()
3809# Return count of non-SOA records in zone (or default records in a group)
3810# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3811# and optional filtering modifier
3812# Returns the count
3813sub getRecCount {
3814 my $self = shift;
3815 my $dbh = $self->{dbh};
3816 my $defrec = shift;
3817 my $revrec = shift;
3818 my $id = shift;
3819 my $filter = shift || '';
3820
3821 # keep the nasties down, since we can't ?-sub this bit. :/
3822 # note this is chars allowed in DNS hostnames
3823 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3824
3825 my @bindvars = ($id);
3826 push @bindvars, ($filter,$filter) if $filter;
3827 my $sql = "SELECT count(*) FROM ".
3828 _rectable($defrec,$revrec).
3829 " WHERE "._recparent($defrec,$revrec)."=? ".
3830 "AND NOT type=$reverse_typemap{SOA}";
3831 if ($filter) {
3832 $sql .= " AND (r.host ~* ? OR r.val ~* ? OR r.host ~* ? OR r.val ~* ?)";
3833 my $tmp = join('.',reverse(split(/\./,$filter)));
3834 push @bindvars, ($tmp, $tmp);
3835 }
3836 $sql .= " AND (host ~* ? OR val ~* ? OR host ~* ? OR val ~* ?)" if $filter;
3837 my $tmp = join('.',reverse(split(/\./,$filter)));
3838 push @bindvars, ($tmp, $tmp) if $filter;
3839
3840 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3841
3842 return $count;
3843
3844} # end getRecCount()
3845
3846
3847## DNSDB::addRec()
3848# Add a new record to a domain or a group's default records
3849# Takes a database handle, default/live flag, group/domain ID,
3850# host, type, value, and TTL
3851# Some types require additional detail: "distance" for MX and SRV,
3852# and weight/port for SRV
3853# Returns a status code and detail message in case of error
3854##fixme: pass a hash with the record data, not a series of separate values
3855sub addRec {
3856 $errstr = '';
3857 my $self = shift;
3858 my $dbh = $self->{dbh};
3859 my $defrec = shift;
3860 my $revrec = shift;
3861 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3862 # domain_id for domain records)
3863
3864 my $host = shift;
3865 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3866 my $val = shift;
3867 my $ttl = shift;
3868 my $location = shift;
3869 $location = '' if !$location;
3870
3871 my $expires = shift;
3872 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
3873 $expires = 0 if $expires eq 'after';
3874 my $stamp = shift;
3875 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
3876
3877 # Spaces are evil.
3878 $$host =~ s/^\s+//;
3879 $$host =~ s/\s+$//;
3880 if ($typemap{$$rectype} ne 'TXT') {
3881 # Leading or trailng spaces could be legit in TXT records.
3882 $$val =~ s/^\s+//;
3883 $$val =~ s/\s+$//;
3884 }
3885
3886 if ($self->{lowercase}) {
3887 if ($typemap{$$rectype} ne 'TXT') {
3888 $$host = lc($$host);
3889 $$val = lc($$val);
3890 } else {
3891 # TXT records should preserve user entry in the string.
3892 if ($revrec eq 'n') {
3893 $$host = lc($$host);
3894 } else {
3895 $$val = lc($$val);
3896 }
3897 }
3898 }
3899
3900 # prep for validation
3901 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
3902 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3903
3904 my $domid = 0;
3905 my $revid = 0;
3906
3907 my $retcode = 'OK'; # assume everything will go OK
3908 my $retmsg = '';
3909
3910 # do simple validation first
3911 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
3912
3913 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3914 my $dist = shift;
3915 my $weight = shift;
3916 my $port = shift;
3917
3918 my $fields;
3919 my @vallist;
3920
3921 # Call the validation sub for the type requested.
3922 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
3923 host => $host, rectype => $rectype, val => $val, addr => $addr,
3924 dist => \$dist, port => \$port, weight => \$weight,
3925 fields => \$fields, vallist => \@vallist);
3926
3927 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3928
3929 # Set up database fields and bind parameters
3930 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3931 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3932
3933 if ($defrec eq 'n') {
3934 # locations are not for default records, silly coder!
3935 $fields .= ",location";
3936 push @vallist, $location;
3937 # timestamps are rare.
3938 if ($stamp) {
3939 $fields .= ",stamp,expires,stampactive";
3940 push @vallist, $stamp, $expires, 'y';
3941 } else {
3942 $fields .= ",stampactive";
3943 push @vallist, 'n';
3944 }
3945 }
3946
3947 # a little magic to get the right number of ? placeholders based on how many values we're providing
3948 my $vallen = '?'.(',?'x$#vallist);
3949
3950 # Put together the success log entry. We have to use this horrible kludge
3951 # because domain_id and rdns_id may or may not be present, and if they are,
3952 # they're not at a guaranteed consistent index in the array. wheee!
3953 my %logdata;
3954 my @ftmp = split /,/, $fields;
3955 for (my $i=0; $i <= $#vallist; $i++) {
3956 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3957 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3958 }
3959 $logdata{group_id} = $id if $defrec eq 'y';
3960 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
3961 if $defrec eq 'n';
3962 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3963 # NS records for revzones get special treatment
3964 if ($revrec eq 'y' && $$rectype == 2) {
3965 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3966 } else {
3967 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3968 }
3969
3970 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3971 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3972 if $typemap{$$rectype} eq 'SRV';
3973 $logdata{entry} .= "', TTL $ttl";
3974 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
3975 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
3976
3977 # Allow transactions, and raise an exception on errors so we can catch it later.
3978 # Use local to make sure these get "reset" properly on exiting this block
3979 local $dbh->{AutoCommit} = 0;
3980 local $dbh->{RaiseError} = 1;
3981
3982 eval {
3983 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3984 undef, @vallist);
3985 $self->_log(%logdata);
3986 $dbh->commit;
3987 };
3988 if ($@) {
3989 my $msg = $@;
3990 eval { $dbh->rollback; };
3991 if ($self->{log_failures}) {
3992 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3993 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3994 $self->_log(%logdata);
3995 $dbh->commit;
3996 }
3997 return ('FAIL',$msg);
3998 }
3999
4000 $resultstr = $logdata{entry};
4001 return ($retcode, $retmsg);
4002
4003} # end addRec()
4004
4005
4006## DNSDB::updateRec()
4007# Update a record
4008# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
4009# Returns a status code and message
4010sub updateRec {
4011 $errstr = '';
4012
4013 my $self = shift;
4014 my $dbh = $self->{dbh};
4015 my $defrec = shift;
4016 my $revrec = shift;
4017 my $id = shift;
4018 my $parid = shift; # immediate parent entity that we're descending from to update the record
4019
4020 # all records have these
4021 my $host = shift;
4022 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
4023 my $rectype = shift;
4024 my $val = shift;
4025 my $ttl = shift;
4026 my $location = shift; # may be empty/null/undef depending on caller
4027 $location = '' if !$location;
4028
4029 my $expires = shift;
4030 $expires = 1 if $expires eq 'until'; # Turn some special values into the appropriate booleans.
4031 $expires = 0 if $expires eq 'after';
4032 my $stamp = shift;
4033 $stamp = '' if !$stamp; # Timestamp should be a string at this point.
4034
4035 # just set it to an empty string; failures will be caught later.
4036 $$host = '' if !$$host;
4037
4038 # Spaces are evil.
4039 $$host =~ s/^\s+//;
4040 $$host =~ s/\s+$//;
4041 if ($typemap{$$rectype} ne 'TXT') {
4042 # Leading or trailng spaces could be legit in TXT records.
4043 $$val =~ s/^\s+//;
4044 $$val =~ s/\s+$//;
4045 }
4046
4047 if ($self->{lowercase}) {
4048 if ($typemap{$$rectype} ne 'TXT') {
4049 $$host = lc($$host);
4050 $$val = lc($$val);
4051 } else {
4052 # TXT records should preserve user entry in the string.
4053 if ($revrec eq 'n') {
4054 $$host = lc($$host);
4055 } else {
4056 $$val = lc($$val);
4057 }
4058 }
4059 }
4060
4061 # prep for validation
4062 my $addr = NetAddr::IP->new($$val) if _maybeip($val);
4063 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
4064
4065 my $domid = 0;
4066 my $revid = 0;
4067
4068 my $retcode = 'OK'; # assume everything will go OK
4069 my $retmsg = '';
4070
4071 # do simple validation first
4072 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^-?\d+$/;
4073
4074 # only MX and SRV will use these
4075 my $dist = shift || 0;
4076 my $weight = shift || 0;
4077 my $port = shift || 0;
4078
4079 my $fields;
4080 my @vallist;
4081
4082 # get old record data so we have the right parent ID
4083 # and for logging (eventually)
4084 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4085
4086 # Call the validation sub for the type requested.
4087 # Note the ID to pass here is the *parent*, not the record
4088 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
4089 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
4090 host => $host, rectype => $rectype, val => $val, addr => $addr,
4091 dist => \$dist, port => \$port, weight => \$weight,
4092 fields => \$fields, vallist => \@vallist,
4093 update => $id);
4094
4095 return ($retcode,$retmsg) if $retcode eq 'FAIL';
4096
4097 # Set up database fields and bind parameters. Note only the optional fields
4098 # (distance, weight, port, secondary parent ID) are added in the validation call above
4099 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
4100 push @vallist, ($$host,$$rectype,$$val,$ttl,
4101 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
4102
4103 if ($defrec eq 'n') {
4104 # locations are not for default records, silly coder!
4105 $fields .= ",location";
4106 push @vallist, $location;
4107 # timestamps are rare.
4108 if ($stamp) {
4109 $fields .= ",stamp,expires,stampactive";
4110 push @vallist, $stamp, $expires, 'y';
4111 } else {
4112 $fields .= ",stampactive";
4113 push @vallist, 'n';
4114 }
4115 }
4116
4117 # hack hack PTHUI
4118 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
4119 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
4120 # needed for crossover types that got coerced down to "standard" types due to data changes
4121 # need to *avoid* funky records being updated like A/AAAA records in revzones, or PTRs in forward zones.
4122 if ($defrec eq 'n' && $oldrec->{type} > 65000) {
4123 if ($$rectype == $reverse_typemap{PTR}) {
4124 $fields .= ",domain_id";
4125 push @vallist, 0;
4126 }
4127 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
4128 $fields .= ",rdns_id";
4129 push @vallist, 0;
4130 }
4131 }
4132 # fix fat-finger-originated record type changes
4133 if ($$rectype == 65285) { # delegation
4134 $fields .= ",rdns_id" if $revrec eq 'n';
4135 $fields .= ",domain_id" if $revrec eq 'y';
4136 push @vallist, 0;
4137 }
4138 # ... and now make sure we *do* associate a record with the "calling" parent
4139 if ($defrec eq 'n') {
4140 $domid = $parid if $revrec eq 'n';
4141 $revid = $parid if $revrec eq 'y';
4142 }
4143
4144 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
4145 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
4146 # will be maintained (due to "not-in-zone" validation changes)
4147 my %logdata;
4148 $logdata{domain_id} = $domid;
4149 $logdata{rdns_id} = $revid;
4150 my @ftmp = split /,/, $fields;
4151 for (my $i=0; $i <= $#vallist; $i++) {
4152 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
4153 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
4154 }
4155 $logdata{group_id} = $parid if $defrec eq 'y';
4156 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
4157 if $defrec eq 'n';
4158 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
4159 # NS records for revzones get special treatment
4160 if ($revrec eq 'y' && $$rectype == 2) {
4161 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
4162 } else {
4163 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4164 }
4165 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4166 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4167 if $typemap{$oldrec->{type}} eq 'SRV';
4168 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4169 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4170 $logdata{entry} .= ($oldrec->{expires} ? ', expires at ' : ', valid after ').$oldrec->{stamp}
4171 if $oldrec->{stampactive};
4172 $logdata{entry} .= "\nto\n";
4173 # More NS special
4174 if ($revrec eq 'y' && $$rectype == 2) {
4175 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
4176 } else {
4177 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
4178 }
4179 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
4180 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
4181 $logdata{entry} .= "', TTL $ttl";
4182 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
4183 $logdata{entry} .= ($expires eq 'after' ? ', valid after ' : ', expires at ').$stamp if $stamp;
4184
4185 local $dbh->{AutoCommit} = 0;
4186 local $dbh->{RaiseError} = 1;
4187
4188 # Fiddle the field list into something suitable for updates
4189 $fields =~ s/,/=?,/g;
4190 $fields .= "=?";
4191
4192 eval {
4193 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
4194 $self->_log(%logdata);
4195 $dbh->commit;
4196 };
4197 if ($@) {
4198 my $msg = $@;
4199 eval { $dbh->rollback; };
4200 if ($self->{log_failures}) {
4201 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
4202 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4203 $self->_log(%logdata);
4204 $dbh->commit;
4205 }
4206 return ('FAIL', $msg);
4207 }
4208
4209 $resultstr = $logdata{entry};
4210 return ($retcode, $retmsg);
4211} # end updateRec()
4212
4213
4214## DNSDB::downconvert()
4215# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
4216# to a compatible component type. Only a handful of operations are valid, anything
4217# else is a null-op.
4218# Takes the record ID and the new type. Returns boolean.
4219sub downconvert {
4220 my $self = shift;
4221 my $dbh = $self->{dbh};
4222 my $recid = shift;
4223 my $newtype = shift;
4224
4225 # also, only work on live records; little to no value trying to do this on default records.
4226 my $rec = $self->getRecLine('n', 'y', $recid);
4227
4228 # hm?
4229 #return 1 if !$rec;
4230
4231 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
4232 return 1 if $rec->{type} == 65282; # Nowhere to go
4233
4234 my $delpar;
4235 my @sqlargs;
4236 if ($rec->{type} == 65280) {
4237 return 1 if $newtype != 1 && $newtype != 12;
4238 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4239 push @sqlargs, 0, $newtype, $recid;
4240 } elsif ($rec->{type} == 65281) {
4241 return 1 if $newtype != 28 && $newtype != 12;
4242 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4243 push @sqlargs, 0, $newtype, $recid;
4244 } elsif ($rec->{type} == 65283) {
4245 return 1 if $newtype != 65282;
4246 $delpar = 'rdns_id';
4247 } elsif ($rec->{type} == 65284) {
4248 return 1 if $newtype != 65282;
4249 $delpar = 'rdns_id';
4250 } else {
4251 # Your llama is on fire.
4252 }
4253
4254 local $dbh->{AutoCommit} = 0;
4255 local $dbh->{RaiseError} = 1;
4256
4257 eval {
4258 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4259 $dbh->commit;
4260 };
4261 if ($@) {
4262 $errstr = $@;
4263 eval { $dbh->rollback; };
4264 return 0;
4265 }
4266 return 1;
4267} # end downconvert()
4268
4269
4270## DNSDB::delRec()
4271# Delete a record.
4272sub delRec {
4273 $errstr = '';
4274 my $self = shift;
4275 my $dbh = $self->{dbh};
4276 my $defrec = shift;
4277 my $revrec = shift;
4278 my $id = shift;
4279
4280 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4281
4282 # Allow transactions, and raise an exception on errors so we can catch it later.
4283 # Use local to make sure these get "reset" properly on exiting this block
4284 local $dbh->{AutoCommit} = 0;
4285 local $dbh->{RaiseError} = 1;
4286
4287 # Put together the log entry
4288 my %logdata;
4289 $logdata{domain_id} = $oldrec->{domain_id};
4290 $logdata{rdns_id} = $oldrec->{rdns_id};
4291 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4292 $logdata{group_id} = $self->parentID(id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'),
4293 revrec => $revrec)
4294 if $defrec eq 'n';
4295 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4296 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4297 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4298 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4299 if $typemap{$oldrec->{type}} eq 'SRV';
4300 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4301 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4302
4303 eval {
4304 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4305 $self->_log(%logdata);
4306 $dbh->commit;
4307 };
4308 if ($@) {
4309 my $msg = $@;
4310 eval { $dbh->rollback; };
4311 if ($self->{log_failures}) {
4312 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4313 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4314 $self->_log(%logdata);
4315 $dbh->commit;
4316 }
4317 return ('FAIL', $msg);
4318 }
4319
4320 return ('OK',$logdata{entry});
4321} # end delRec()
4322
4323
4324## DNSDB::getLogCount()
4325# Get a count of log entries
4326# Takes a database handle and a hash containing at least:
4327# - Entity ID and entity type as the primary log "slice"
4328sub getLogCount {
4329 my $self = shift;
4330 my $dbh = $self->{dbh};
4331
4332 my %args = @_;
4333
4334 my @filterargs;
4335##fixme: which fields do we want to filter on?
4336# push @filterargs,
4337
4338 $errstr = 'Missing primary parent ID and/or type';
4339 # fail early if we don't have a "prime" ID to look for log entries for
4340 return if !$args{id};
4341
4342 # or if the prime id type is missing or invalid
4343 return if !$args{logtype};
4344 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4345 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4346 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4347
4348 my $sql = "SELECT count(*) FROM log ".
4349 "WHERE $id_col{$args{logtype}}=?".
4350 ($args{filter} ? " AND entry ~* ?" : '');
4351 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4352 $errstr = $dbh->errstr if !$count;
4353 return $count;
4354} # end getLogCount()
4355
4356
4357## DNSDB::getLogEntries()
4358# Get a list of log entries
4359# Takes arguments as with getLogCount() above, plus optional:
4360# - sort field
4361# - sort order
4362# - offset for pagination
4363sub getLogEntries {
4364 my $self = shift;
4365 my $dbh = $self->{dbh};
4366
4367 my %args = @_;
4368
4369 my @filterargs;
4370
4371 # fail early if we don't have a "prime" ID to look for log entries for
4372 return if !$args{id};
4373
4374 # or if the prime id type is missing or invalid
4375 return if !$args{logtype};
4376 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4377 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4378 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4379
4380 # Sorting defaults
4381 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4382 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4383 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4384
4385 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4386 $args{sortby} = $sortmap{$args{sortby}};
4387
4388 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4389 "date_trunc('second',stamp) AS logtime ".
4390 "FROM log ".
4391 "WHERE $id_col{$args{logtype}}=?".
4392 ($args{filter} ? " AND entry ~* ?" : '').
4393 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4394 ($args{offset} eq 'all' ? '' : " LIMIT $self->{perpage} OFFSET ".$args{offset}*$self->{perpage});
4395 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4396 $errstr = $dbh->errstr if !$loglist;
4397 return $loglist;
4398} # end getLogEntries()
4399
4400
4401## IPDB::getRevPattern()
4402# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4403sub getRevPattern {
4404 my $self = shift;
4405 my $dbh = $self->{dbh};
4406 my $cidr = shift;
4407 my $group = shift || 1; # just in case
4408
4409 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4410 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ? AND group_id = ?",
4411 undef, ($cidr, $group) );
4412
4413##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4414 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4415 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND inetlazy(val) >>= ? ".
4416 "ORDER BY inetlazy(val) DESC LIMIT 1", undef, ($revid, $cidr) );
4417 return $revpatt;
4418} # end getRevPattern()
4419
4420
4421## DNSDB::getTypelist()
4422# Get a list of record types for various UI dropdowns
4423# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4424# Returns an arrayref to list of hashrefs perfect for HTML::Template
4425sub getTypelist {
4426 my $self = shift;
4427 my $dbh = $self->{dbh};
4428 my $recgroup = shift;
4429 my $type = shift || $reverse_typemap{A};
4430
4431 # also accepting $webvar{revrec}!
4432 $recgroup = 'f' if $recgroup eq 'n';
4433 $recgroup = 'r' if $recgroup eq 'y';
4434
4435 my $sql = "SELECT val,name FROM rectypes WHERE ";
4436 if ($recgroup eq 'r') {
4437 # reverse zone types
4438 $sql .= "stdflag=2 OR stdflag=3";
4439 } elsif ($recgroup eq 'l') {
4440 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4441 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4442 } else {
4443 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4444 $sql .= "stdflag=1 OR stdflag=2";
4445 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4446 }
4447 $sql .= " ORDER BY listorder";
4448
4449 my $sth = $dbh->prepare($sql);
4450 $sth->execute;
4451 my @typelist;
4452 # track whether the passed type is in the list at all. allows you to edit a record
4453 # that wouldn't otherwise be generally available in that zone (typically, reverse zones)
4454 # without changing its type (accidentally or otherwise)
4455 my $selflag = 0;
4456 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4457 my %row = ( recval => $rval, recname => $rname );
4458 if ($rval == $type) {
4459 $row{tselect} = 1;
4460 $selflag = 1;
4461 }
4462 push @typelist, \%row;
4463 }
4464
4465 # add the passed type if it wasn't in the list
4466 if (!$selflag) {
4467 my %row = ( recval => $type, recname => $typemap{$type}, tselect => 1 );
4468 push @typelist, \%row;
4469 }
4470
4471 # Add SOA on lookups since it's not listed in other dropdowns.
4472 if ($recgroup eq 'l') {
4473 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4474 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4475 push @typelist, \%row;
4476 }
4477
4478 return \@typelist;
4479} # end getTypelist()
4480
4481
4482## DNSDB::parentID()
4483# Get ID of entity that is nearest parent to requested id
4484# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4485# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4486# Returns the ID or undef on failure
4487sub parentID {
4488 my $self = shift;
4489 my $dbh = $self->{dbh};
4490
4491 my %args = @_;
4492
4493 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
4494 $args{partype} = 'group' if !$args{partype};
4495 $args{partype} = 'domain' if $args{partype} eq 'revzone';
4496
4497 # clean up defrec and revrec. default to live record, forward zone
4498 $args{defrec} = 'n' if !$args{defrec};
4499 $args{revrec} = 'n' if !$args{revrec};
4500
4501 if ($par_type{$args{partype}} eq 'domain') {
4502 # only live records can have a domain/zone parent
4503 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4504 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4505 " FROM records WHERE record_id = ?",
4506 undef, ($args{id}) ) or return;
4507 return $result;
4508 } else {
4509 # snag some arguments that will either fall through or be overwritten to save some code duplication
4510 my $tmpid = $args{id};
4511 my $type = $args{type};
4512 if ($type eq 'record' && $args{defrec} eq 'n') {
4513 # Live records go through the records table first.
4514 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4515 " FROM records WHERE record_id = ?",
4516 undef, ($args{id}) ) or return;
4517 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4518 }
4519 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4520 undef, ($tmpid) );
4521 return $result;
4522 }
4523# should be impossible to get here with even remotely sane arguments
4524 return;
4525} # end parentID()
4526
4527
4528## DNSDB::isParent()
4529# Returns true if $id1 is a parent of $id2, false otherwise
4530sub isParent {
4531 my $self = shift;
4532 my $dbh = $self->{dbh};
4533 my $id1 = shift;
4534 my $type1 = shift;
4535 my $id2 = shift;
4536 my $type2 = shift;
4537##todo: immediate, secondary, full (default)
4538
4539 # Return false on invalid types
4540 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4541 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4542
4543 # Return false on impossible relations
4544 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4545 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4546 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4547 return 0 if $type1 eq 'user'; # nothing may be child of a user
4548 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4549 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4550
4551 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4552 # case would be the UI creating a new <thing>, and so we don't have an ID for
4553 # <thing> to look up yet. in that case the UI should check the parent as well.
4554 return 0 if $id1 == 0; # nothing can have a parent id of 0
4555 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4556
4557 # group 1 is the ultimate root parent
4558 return 1 if $type1 eq 'group' && $id1 == 1;
4559
4560 # groups are always (a) parent of themselves
4561 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4562
4563 my $id = $id2;
4564 my $type = $type2;
4565 my $foundparent = 0;
4566
4567 # Records are the only entity with two possible parents. We need to split the parent checks on
4568 # domain/rdns.
4569 if ($type eq 'record') {
4570 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4571 undef, ($id));
4572 # check immediate parent against request
4573 return 1 if $type1 eq 'domain' && $id1 == $dom;
4574 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4575 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4576 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
4577 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
4578 # exit here since we've executed the loop below by proxy in the above recursive calls.
4579 return 0;
4580 }
4581
4582# almost the same loop as getParents() above
4583 my $limiter = 0;
4584 while (1) {
4585 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4586 my $result = $dbh->selectrow_hashref($sql,
4587 undef, ($id) );
4588 if (!$result) {
4589 $limiter++;
4590##fixme: how often will this happen on a live site? fail at max limiter <n>?
4591# 2013/10/22 only seems to happen when you request an entity that doesn't exist.
4592 warn "no results looking for $sql with id $id (depth $limiter)\n";
4593 last;
4594 }
4595 if ($result && $result->{$par_col{$type}} == $id1) {
4596 $foundparent = 1;
4597 last;
4598 } else {
4599##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4600# should be impossible to create an inconsistent DB just with API calls.
4601 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4602 }
4603 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4604 last if $result->{$par_col{$type}} == 1;
4605 $id = $result->{$par_col{$type}};
4606 $type = $par_type{$type};
4607 }
4608
4609 return $foundparent;
4610} # end isParent()
4611
4612
4613## DNSDB::zoneStatus()
4614# Returns and optionally sets a zone's status
4615# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4616# Returns status, or undef on errors.
4617sub zoneStatus {
4618 my $self = shift;
4619 my $dbh = $self->{dbh};
4620 my $id = shift;
4621 my $revrec = shift;
4622 my $newstatus = shift || 'mu';
4623
4624 return undef if $id !~ /^\d+$/;
4625
4626 # Allow transactions, and raise an exception on errors so we can catch it later.
4627 # Use local to make sure these get "reset" properly on exiting this block
4628 local $dbh->{AutoCommit} = 0;
4629 local $dbh->{RaiseError} = 1;
4630
4631 if ($newstatus ne 'mu') {
4632 # ooo, fun! let's see what we were passed for status
4633 eval {
4634 $newstatus = 0 if $newstatus eq 'domoff';
4635 $newstatus = 1 if $newstatus eq 'domon';
4636 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4637 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4638
4639##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4640 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
4641 " state to ".($newstatus ? 'active' : 'inactive');
4642
4643 my %loghash;
4644 $loghash{domain_id} = $id if $revrec eq 'n';
4645 $loghash{rdns_id} = $id if $revrec eq 'y';
4646 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
4647 $loghash{entry} = $resultstr;
4648 $self->_log(%loghash);
4649
4650 $dbh->commit;
4651 };
4652 if ($@) {
4653 my $msg = $@;
4654 eval { $dbh->rollback; };
4655 $resultstr = '';
4656 $errstr = $msg;
4657 return;
4658 }
4659 }
4660
4661 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4662 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4663 undef, ($id) );
4664 return $status;
4665} # end zoneStatus()
4666
4667
4668## DNSDB::getZonesByCIDR()
4669# Get a list of zone names and IDs that records for a passed CIDR block are within.
4670sub getZonesByCIDR {
4671 my $self = shift;
4672 my $dbh = $self->{dbh};
4673 my %args = @_;
4674
4675 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
4676 { Slice => {} }, ($args{cidr}, $args{cidr}) );
4677 return $result;
4678} # end getZonesByCIDR()
4679
4680
4681## DNSDB::importAXFR
4682# Import a domain via AXFR
4683# Takes AXFR host, domain to transfer, group to put the domain in,
4684# and an optional hash containing:
4685# status - active/inactive state flag (defaults to active)
4686# rwsoa - overwrite-SOA flag (defaults to off)
4687# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4688# merge - flag to automerge A or AAAA records with matching PTR records
4689# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4690# if status is OK, but WARN includes conditions that are not fatal but should
4691# really be reported.
4692sub importAXFR {
4693 my $self = shift;
4694 my $dbh = $self->{dbh};
4695 my $ifrom_in = shift;
4696 my $zone = shift;
4697 my $group = shift;
4698
4699 my %args = @_;
4700
4701##fixme: add mode to delete&replace, merge+overwrite, merge new?
4702
4703 $args{status} = (defined($args{status}) ? $args{status} : 0);
4704 $args{status} = 1 if $args{status} eq 'on';
4705
4706 my $nrecs = 0;
4707 my $soaflag = 0;
4708 my $nsflag = 0;
4709 my $warnmsg = '';
4710 my $ifrom;
4711
4712 my $rev = 'n';
4713 my $code = 'OK';
4714 my $msg = 'foobar?';
4715
4716 # choke on possible bad setting in ifrom
4717 # IPv4 and v6, and valid hostnames!
4718 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4719 return ('FAIL', "Bad AXFR source host $ifrom")
4720 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4721
4722 my $errmsg;
4723
4724 my $zone_id;
4725 my $domain_id = 0;
4726 my $rdns_id = 0;
4727 my $cidr;
4728
4729# magic happens! detect if we're importing a domain or a reverse zone
4730# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
4731# or what the formal .arpa zone is (if we got a CIDR netblock)
4732# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
4733
4734 if ($zone =~ m{(?:\.arpa\.?|/\d+|^[\d.]+|^[a-fA-F0-9:]+)$}) {
4735 # we seem to have a reverse zone
4736 $rev = 'y';
4737
4738 if ($zone =~ /\.arpa\.?$/) {
4739 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
4740 ($code,$msg) = _zone2cidr($zone);
4741 return ($code, $msg) if $code eq 'FAIL';
4742 $cidr = $msg;
4743 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
4744 # v4 revzone, CIDR netblock
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 =~ /^[\d.]+$/) {
4748 # v4 revzone, leading-octet format
4749 my $mask = 32;
4750 while ($zone !~ /^\d+\.\d+\.\d+\.\d+$/) {
4751 $zone .= '.0';
4752 $mask -= 8;
4753 }
4754 $zone .= "/$mask";
4755 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4756 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4757 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
4758 # v6 revzone, CIDR netblock
4759 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4760 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
4761 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4762 } elsif ($zone =~ /^[a-fA-F\d:]+$/) {
4763 # v6 revzone, leading-group format
4764 $zone =~ s/::$//;
4765 my $mask = 128;
4766 while ($zone !~ /^(?:[a-fA-F\d]{1,4}:){7}[a-fA-F\d]$/) {
4767 $zone .= ":0";
4768 $mask -= 16;
4769 }
4770 $zone .= "/$mask";
4771 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4772 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4773 } else {
4774 # there is. no. else!
4775 return ('FAIL', "Unknown zone name format '$zone'");
4776 }
4777
4778 # several places this can be triggered from; better to do it once.
4779 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $cidr->masklen > 64;
4780
4781 # quick check to start to see if we've already got one
4782
4783 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
4784 undef, ("$cidr"));
4785 $rdns_id = $zone_id;
4786 } else {
4787 # default to domain
4788 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
4789 undef, ($zone));
4790 $domain_id = $zone_id;
4791 }
4792
4793 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
4794
4795 # little local utility sub to swap $val and $host for revzone records.
4796 sub _revswap {
4797 my $rechost = shift;
4798 my $recdata = shift;
4799
4800 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
4801 $rechost =~ s/\.in-addr\.arpa\.?$//;
4802 $rechost = join '.', reverse split /\./, $rechost;
4803 } else {
4804 $rechost =~ s/\.ip6\.arpa\.?$//;
4805 my @nibs = reverse split /\./, $rechost;
4806 $rechost = '';
4807 my $nc;
4808 foreach (@nibs) {
4809 $rechost.= $_;
4810 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
4811 }
4812 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
4813##fixme: there's a case that ends up with a partial entry here:
4814# ip:add:re:ss::
4815# can't reproduce after letting it sit overnight after discovery. :(
4816#print "$rechost\n";
4817 # canonicalize with NetAddr::IP
4818 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
4819 }
4820 return ($recdata,$rechost)
4821 }
4822
4823
4824 # Allow transactions, and raise an exception on errors so we can catch it later.
4825 # Use local to make sure these get "reset" properly on exiting this block
4826 local $dbh->{AutoCommit} = 0;
4827 local $dbh->{RaiseError} = 1;
4828
4829 my $sth;
4830 eval {
4831
4832 if ($rev eq 'n') {
4833##fixme: serial
4834 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
4835 ($zone, $group, $args{status}) );
4836 # get domain id so we can do the records
4837 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
4838 $domain_id = $zone_id;
4839 $self->_log(group_id => $group, domain_id => $domain_id,
4840 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
4841 } else {
4842##fixme: serial
4843 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
4844 ($cidr,$group,$args{status}) );
4845 # get revzone id so we can do the records
4846 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
4847 $rdns_id = $zone_id;
4848 $self->_log(group_id => $group, rdns_id => $rdns_id,
4849 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
4850 }
4851
4852## bizarre DBI<->Net::DNS interaction bug:
4853## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
4854## fixed, apparently I was doing *something* odd, but not certain what it was that
4855## caused a commit instead of barfing
4856
4857 my $res = Net::DNS::Resolver->new;
4858 $res->nameservers($ifrom);
4859 $res->axfr_start($zone)
4860 or die "Couldn't begin AXFR\n";
4861
4862 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
4863 " VALUES (?,?,?,?,?,?,?,?,?)");
4864
4865 # Stash info about sub-octet v4 revzones here so we don't have
4866 # to store the CNAMEs used to delegate a suboctet zone
4867 # $suboct{zone}{ns}[] -> array of nameservers
4868 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
4869## commented pending actual use of this data. for now, we'll just
4870## auto-(re)create the CNAMEs in revzones on export
4871# my %suboct;
4872
4873 while (my $rr = $res->axfr_next()) {
4874
4875 # Discard out-of-zone records. After trying for a while to replicate this with
4876 # *nix-based DNS servers, it appears that only MS DNS is prone to including these
4877 # in the AXFR data in the first place, and possibly only older versions at that...
4878 # so it can't be reasonably tested. Yay Microsoft.
4879 if ($rr->name !~ /$zone$/i) {
4880 $warnmsg .= "Discarding out-of-zone record ".$rr->string."\n";
4881 }
4882
4883 my $val;
4884 my $distance = 0;
4885 my $weight = 0;
4886 my $port = 0;
4887 my $logfrag = '';
4888
4889 # Collect some record parts
4890 my $type = $rr->type;
4891 my $host = $rr->name;
4892 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
4893
4894 # Info flags for SOA and NS records
4895 $soaflag = 1 if $type eq 'SOA';
4896 $nsflag = 1 if $type eq 'NS';
4897
4898# "Primary" types:
4899# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
4900# maybe KEY
4901
4902# BIND supports:
4903# [standard]
4904# A AAAA CNAME MX NS PTR SOA TXT
4905# [variously experimental, obsolete, or obscure]
4906# 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
4907# ... if one can ever find the right magic to format them correctly
4908
4909# Net::DNS supports:
4910# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
4911# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
4912# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
4913
4914# nasty big ugly case-like thing here, since we have to do *some* different
4915# processing depending on the record. le sigh.
4916
4917# do the initial processing as if the record was in a forward zone. If we're
4918# doing a revzone, we can flip $host and $val as needed, once, after this
4919# monster if-elsif-...-elsif-else. This actually simplifies things a lot.
4920
4921##fixme: what record types other than TXT can/will have >255-byte payloads?
4922
4923 if ($type eq 'A') {
4924 $val = $rr->address;
4925 } elsif ($type eq 'NS') {
4926# hmm. should we warn here if subdomain NS'es are left alone?
4927 next if ($args{rwns} && ($host eq $zone));
4928 $val = $rr->nsdname;
4929 $nsflag = 1;
4930 } elsif ($type eq 'CNAME') {
4931 $val = $rr->cname;
4932 } elsif ($type eq 'SOA') {
4933 next if $args{rwsoa};
4934 $host = $rr->rname.":".$rr->mname;
4935 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
4936 $soaflag = 1;
4937 } elsif ($type eq 'PTR') {
4938 $val = $rr->ptrdname;
4939 } elsif ($type eq 'MX') {
4940 $val = $rr->exchange;
4941 $distance = $rr->preference;
4942 } elsif ($type eq 'TXT') {
4943##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
4944## but don't really seem enthusiastic about it.
4945#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
4946# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
4947# char_str_list returns a list of the individual string fragments in the record
4948# txtdata returns the more useful all-in-one form (since we want to push such protocol
4949# details as far down the stack as we can)
4950# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
4951 $val = $rr->txtdata;
4952 } elsif ($type eq 'SPF') {
4953##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4954 $val = $rr->txtdata;
4955 } elsif ($type eq 'AAAA') {
4956 $val = $rr->address;
4957 } elsif ($type eq 'SRV') {
4958 $val = $rr->target;
4959 $distance = $rr->priority;
4960 $weight = $rr->weight;
4961 $port = $rr->port;
4962 } elsif ($type eq 'KEY') {
4963 # we don't actually know what to do with these...
4964 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4965 } else {
4966 $val = $rr->rdatastr;
4967 # Finding a different record type is not fatal.... just problematic.
4968 # We may not be able to export it correctly.
4969 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4970 }
4971
4972 if ($rev eq 'y' && $type ne 'SOA') {
4973 # up to this point we haven't meddled with the record's hostname part or rdata part.
4974 # for reverse records, (except SOA) we must swap the two.
4975 $host = $val;
4976 $val = $rr->name;
4977 my ($tmpcode,$tmpmsg) = _zone2cidr($val);
4978 if ($tmpcode eq 'FAIL') {
4979 # $val did not have a valid IP value. It's syntactically valid but WTF?
4980 $warnmsg .= "Suspect record '".$rr->string."' may not be imported correctly: $tmpmsg\n";
4981 } else {
4982 # $val has a valid IP value. See if we can store it as that IP value.
4983 # Note we're enumerating do-nothing cases for clarity.
4984##enhance: this is where we will implement the more subtle variations on #53
4985 if ($type ne 'PTR' && $type ne 'NS' && $type ne 'CNAME' && $type ne 'TXT') {
4986 # case: the record is "weird" - ie, not a PTR, NS, CNAME, or TXT
4987 # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
4988 } elsif ($type eq 'PTR' && $tmpmsg->masklen != 32 && $tmpmsg->masklen != 128) {
4989 # case: PTR with netblock value, not IP value
4990 # eg, "@ PTR foo" in zone f.e.e.b.d.a.e.d.ip6.arpa should not be
4991 # stored/displayed as dead:beef::/32 PTR foo
4992
4993## hrm. WTF is this case for, anyway? Needs testing to check the logic.
4994# } elsif ( ($type eq 'PTR' || $type eq 'NS' || $type eq 'CNAME' || $type eq 'TXT') &&
4995# ($tmpmsg->masklen != $cidr->masklen)
4996# ) {
4997# # leave $val as-is if the record is "normal" (a PTR, NS, CNAME, or TXT),
4998# # and the mask does not match the zone
4999#$warnmsg .= "WTF case: $host $type $val\n";
5000# # $warnmsg .= "Discarding suspect record '".$rr->string."'\n" if $self->{strict} eq 'full';
5001
5002 } else {
5003 $val = $tmpmsg;
5004 $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5005 #$val =~ s/:0$//g;
5006 }
5007 }
5008 # magic? convert * records to PTR template (not sure this actually makes sense)
5009 #if ($val =~ /^\*/) {
5010 # $val =~ s/\*\.//;
5011 # ($tmpcode,$tmpmsg) = _zone2cidr($val);
5012 # if ($tmpcode eq 'FAIL') {
5013 # $val = "*.$val";
5014 # $warnmsg .= "Suspect record '".$rr->string."' may not be converted to PTR template correctly: $tmpmsg\n";
5015 # } else {
5016 # $type = 'PTR template';
5017 # $val = $tmpmsg; if $tmp
5018 # $val =~ s/\/(?:32|128)$//; # automagically converts $val back to a string before s///
5019 # }
5020 #}
5021 } # non-SOA revrec $host/$val inversion and munging
5022
5023 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
5024
5025 if ($args{merge}) {
5026 if ($rev eq 'n') {
5027 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
5028 my $etype;
5029 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
5030 "WHERE host=? AND val=? AND type=12",
5031 undef, ($host, $val) );
5032 if ($erid) {
5033 if ($type eq 'A') { # PTR -> A+PTR
5034 $etype = 65280;
5035 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
5036 }
5037 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
5038 $etype = 65281;
5039 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
5040 }
5041 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5042 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
5043 ($domain_id, $ettl, $etype, $erid));
5044 $nrecs++;
5045 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
5046 next; # while axfr_next
5047 }
5048 } # $rev eq 'n'
5049 else {
5050 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
5051 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
5052 "WHERE host=? AND val=? AND (type=1 OR type=28)",
5053 undef, ($host, $val) );
5054 if ($erid) {
5055 if ($etype == 1) { # A -> A+PTR
5056 $etype = 65280;
5057 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
5058 }
5059 if ($etype == 28) { # AAAA -> AAAA+PTR
5060 $etype = 65281;
5061 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
5062 }
5063 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
5064 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
5065 ($rdns_id, $ettl, $etype, $erid));
5066 $nrecs++;
5067 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
5068 next; # while axfr_next
5069 }
5070 } # $rev eq 'y'
5071 } # if $args{merge}
5072
5073 # Insert the new record
5074 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
5075 $distance, $weight, $port, $ttl);
5076
5077 $nrecs++;
5078
5079 if ($type eq 'SOA') {
5080 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
5081 my @tmp1 = split /:/, $host;
5082 my @tmp2 = split /:/, $val;
5083 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
5084 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
5085 } elsif ($logfrag) {
5086 # special case for log entries we need to meddle with a little.
5087 $logentry .= $logfrag;
5088 } else {
5089 $logentry .= "Added record '".($rev eq 'y' ? $val : $host)." $type";
5090 $logentry .= " [distance $distance]" if $type eq 'MX';
5091 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
5092 $logentry .= " ".($rev eq 'y' ? $host : $val)."', TTL $ttl";
5093 }
5094 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
5095
5096 } # while axfr_next
5097
5098# Detect and handle delegated subzones
5099# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
5100#foreach (keys %suboct) {
5101# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
5102# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
5103#}
5104
5105 # Overwrite SOA record
5106 if ($args{rwsoa}) {
5107 $soaflag = 1;
5108 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y', $rev)." WHERE group_id=? AND type=?");
5109 my $sthputsoa = $dbh->prepare("INSERT INTO records (".
5110 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5111 $sthgetsoa->execute($group,$reverse_typemap{SOA});
5112 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
5113 if ($rev eq 'n') {
5114 $host =~ s/DOMAIN/$zone/g;
5115 $val =~ s/DOMAIN/$zone/g; # arguably useless
5116 } else {
5117 $host =~ s/ADMINDOMAIN/$self->{domain}/g;
5118 }
5119 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
5120 }
5121 }
5122
5123 # Add standard NS records. The old one(s) should have been skipped by this point.
5124 if ($args{rwns}) {
5125 $nsflag = 1;
5126 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM "._rectable('y',$rev)." WHERE group_id=? AND type=?");
5127 my $sthputns = $dbh->prepare("INSERT INTO records (".
5128 ($rev eq 'n' ? 'domain_id' : 'rdns_id').",host,type,val,ttl) VALUES (?,?,?,?,?)");
5129 $sthgetns->execute($group,$reverse_typemap{NS});
5130 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
5131 if ($rev eq 'n') {
5132 $host =~ s/DOMAIN/$zone/g;
5133 $val =~ s/DOMAIN/$zone/g; #hmm.
5134 } else {
5135 $host =~ s/ADMINDOMAIN/$self->{domain}/g; #hmm.
5136 $val =~ s/ZONE/$cidr/g;
5137 }
5138 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
5139 }
5140 }
5141
5142 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
5143 die "Bad zone: No SOA record!\n" if !$soaflag;
5144 die "Bad zone: No NS records!\n" if !$nsflag;
5145
5146 $dbh->commit;
5147
5148 };
5149
5150 if ($@) {
5151 my $msg = $@;
5152 eval { $dbh->rollback; };
5153 return ('FAIL',$msg." $warnmsg");
5154 } else {
5155 return ('WARN', $warnmsg) if $warnmsg;
5156 return ('OK',"Imported OK");
5157 }
5158
5159 # it should be impossible to get here.
5160 return ('WARN',"OOOK!");
5161} # end importAXFR()
5162
5163
5164## DNSDB::importBIND()
5165sub importBIND {
5166} # end importBIND()
5167
5168
5169## DNSDB::import_tinydns()
5170sub import_tinydns {
5171} # end import_tinydns()
5172
5173
5174## DNSDB::export()
5175# Export the DNS database, or a part of it
5176# Takes a string indicating the export type, plus optional arguments depending on type
5177# Writes zone data to targets as appropriate for type
5178sub export {
5179 my $self = shift;
5180 my $target = shift;
5181
5182 if ($target eq 'tiny') {
5183 eval {
5184 $self->__export_tiny(@_);
5185 };
5186 if ($@) {
5187 $errstr = $@;
5188 return undef;
5189 }
5190 }
5191# elsif ($target eq 'foo') {
5192# __export_foo(@_);
5193#}
5194# etc
5195
5196 return 1;
5197} # end export()
5198
5199
5200## DNSDB::__export_tiny
5201# Internal sub to implement tinyDNS (compatible) export
5202# Takes filehandle to write export to, optional argument(s)
5203# to determine which data gets exported
5204sub __export_tiny {
5205 my $self = shift;
5206 my $dbh = $self->{dbh};
5207 my $datafile = shift;
5208 my $zonefilehandle = $datafile; # makes cache/no-cache a little simpler
5209
5210##fixme: slurp up further options to specify particular zone(s) to export
5211
5212##fixme: fail if $datafile isn't an open, writable file
5213
5214 # Error check - does the cache dir exist, if we're using one?
5215 if ($self->{usecache}) {
5216 die "Cache directory does not exist\n" if !-e $self->{exportcache};
5217 die "$self->{exportcache} is not a directory\n" if !-d $self->{exportcache};
5218 die "$self->{exportcache} must be both readable and writable\n"
5219 if !-r $self->{exportcache} || !-w $self->{exportcache};
5220 }
5221
5222 # easy case - export all evarything
5223 # not-so-easy case - export item(s) specified
5224 # todo: figure out what kind of list we use to export items
5225
5226# raw packet in unknown format: first byte indicates length
5227# of remaining data, allows up to 255 raw bytes
5228
5229 # note: the only I/O failures we seem to be able to actually catch
5230 # here are "closed filehandle" errors. we're probably not writing
5231 # enough data at this point to properly trigger an "out of space"
5232 # error. :/
5233 eval {
5234 use warnings FATAL => ('io');
5235 # Locations/views - worth including in the caching setup?
5236 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
5237 foreach my $location (keys %$lochash) {
5238 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
5239 $ipprefix =~ s/\s+//g;
5240 $ipprefix = new NetAddr::IP $ipprefix;
5241##fixme: how to handle IPv6?
5242next if $ipprefix->{isv6};
5243 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
5244 if ($ipprefix->masklen <= 8) {
5245 foreach ($ipprefix->split(8)) {
5246 my $tmp = $_->addr;
5247 $tmp =~ s/\.\d+\.\d+\.\d+$//;
5248 print $datafile "%$location:$tmp\n";
5249 }
5250 } elsif ($ipprefix->masklen <= 16) {
5251 foreach ($ipprefix->split(16)) {
5252 my $tmp = $_->addr;
5253 $tmp =~ s/\.\d+\.\d+$//;
5254 print $datafile "%$location:$tmp\n";
5255 }
5256 } elsif ($ipprefix->masklen <= 24) {
5257 foreach ($ipprefix->split(24)) {
5258 my $tmp = $_->addr;
5259 $tmp =~ s/\.\d+$//;
5260 print $datafile "%$location:$tmp\n";
5261 }
5262 } else {
5263 foreach ($ipprefix->split(32)) {
5264 print $datafile "%$location:".$_->addr."\n";
5265 }
5266 }
5267 }
5268 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
5269 }
5270 };
5271 if ($@) {
5272 die "Error writing locations to master file: $@, $!\n";
5273 }
5274
5275 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
5276 my %recflags;
5277
5278# For reasons unknown, we can't sanely UNION these statements. Feh.
5279# Supposedly it should work though (note last 3 lines):
5280## PG manual
5281#UNION Clause
5282#
5283#The UNION clause has this general form:
5284#
5285# select_statement UNION [ ALL ] select_statement
5286#
5287#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5288#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5289#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5290 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5291 "FROM records WHERE rdns_id=? AND type=6");
5292 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5293 "FROM records WHERE rdns_id=? AND NOT type=6 ".
5294 "ORDER BY masklen(inetlazy(val)) DESC, inetlazy(val)");
5295 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
5296 "ORDER BY masklen(revnet) DESC, rdns_id");
5297 my $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5298 $revsth->execute();
5299 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5300##fixme: need to find a way to block opening symlinked files without introducing a race.
5301# O_NOFOLLOW
5302# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5303# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5304# still be followed.
5305# but that doesn't help other platforms. :/
5306 my $tmpzone = NetAddr::IP->new($revzone);
5307##fixme: locations/views? subnet mask? need to avoid possible collisions with zone/superzone
5308## (eg /20 vs /24, starting on .0.0)
5309 my $cz = $tmpzone->network->addr."-".$tmpzone->masklen;
5310 my $cachefile = "$self->{exportcache}/$cz";
5311 my $tmpcache = "$self->{exportcache}/tmp.$cz.$$";
5312 eval {
5313
5314 # write fresh records if:
5315 # - we are not using the cache
5316 # - force_refresh is set
5317 # - the zone has changed
5318 # - the cache file does not exist
5319 # - the cache file is empty
5320 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5321 if ($self->{usecache}) {
5322 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5323 $zonefilehandle = *ZONECACHE;
5324 }
5325
5326 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5327 $soasth->execute($revid);
5328 my (@zsoa) = $soasth->fetchrow_array();
5329 _printrec_tiny($zonefilehandle, $zsoa[7], 'y',\%recflags,$revzone,
5330 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5331
5332 $recsth->execute($revid);
5333 my $fullzone = _ZONE($tmpzone, 'ZONE', 'r', '.').($tmpzone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5334
5335 while (my ($host, $type, $val, $dist, $weight, $port, $ttl, $recid, $loc, $stamp, $expires, $stampactive)
5336 = $recsth->fetchrow_array) {
5337 next if $recflags{$recid};
5338
5339 # Check for out-of-zone data
5340 if ($val =~ /\.arpa$/) {
5341 # val is non-IP
5342 if ($val !~ /$fullzone$/) {
5343 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5344 next;
5345 }
5346 } else {
5347 my $ipval = new NetAddr::IP $val;
5348 if (!$tmpzone->contains($ipval)) {
5349 warn "Not exporting out-of-zone record $val $typemap{$type} $host, $ttl (zone $tmpzone)\n";
5350 next;
5351 }
5352 } # is $val a raw .arpa name?
5353
5354 # Spaces are evil.
5355 $val =~ s/^\s+//;
5356 $val =~ s/\s+$//;
5357 if ($typemap{$type} ne 'TXT') {
5358 # Leading or trailng spaces could be legit in TXT records.
5359 $host =~ s/^\s+//;
5360 $host =~ s/\s+$//;
5361 }
5362
5363 _printrec_tiny($zonefilehandle, $recid, 'y', \%recflags, $revzone,
5364 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5365
5366 $recflags{$recid} = 1;
5367
5368 } # while ($recsth)
5369
5370 if ($self->{usecache}) {
5371 close ZONECACHE; # force the file to be written
5372 # catch obvious write errors that leave an empty temp file
5373 if (-s $tmpcache) {
5374 rename $tmpcache, $cachefile
5375 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5376 }
5377 }
5378
5379 } # if $changed or cache filesize is 0
5380
5381 };
5382 if ($@) {
5383 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$revzone: $@\n";
5384 # error! something borked, and we should be able to fall back on the old cache file
5385 # report the error, somehow.
5386 } else {
5387 # mark zone as unmodified. Only do this if no errors, that way
5388 # export failures should recover a little more automatically.
5389 $zonesth->execute($revid);
5390 }
5391
5392 if ($self->{usecache}) {
5393 # We've already made as sure as we can that a cached zone file is "good",
5394 # although possibly stale/obsolete due to errors creating a new one.
5395 eval {
5396 open CACHE, "<$cachefile" or die $!;
5397 print $datafile $_ or die "error copying cached $revzone to master file: $!" while <CACHE>;
5398 close CACHE;
5399 };
5400 die $@ if $@;
5401 }
5402
5403 } # while ($revsth)
5404
5405 $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5406 "FROM records WHERE domain_id=? AND type=6");
5407 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location,extract(epoch from stamp),expires,stampactive ".
5408 "FROM records WHERE domain_id=? AND NOT type=6"); # Just exclude all types relating to rDNS
5409# "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
5410 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1 ORDER BY domain_id");
5411 $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
5412 $domsth->execute();
5413 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
5414##fixme: need to find a way to block opening symlinked files without introducing a race.
5415# O_NOFOLLOW
5416# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5417# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5418# still be followed.
5419# but that doesn't help other platforms. :/
5420 my $cachefile = "$self->{exportcache}/$dom";
5421 my $tmpcache = "$self->{exportcache}/tmp.$dom.$$";
5422 eval {
5423
5424 # write fresh records if:
5425 # - we are not using the cache
5426 # - force_refresh is set
5427 # - the zone has changed
5428 # - the cache file does not exist
5429 # - the cache file is empty
5430 if (!$self->{usecache} || $self->{force_refresh} || $changed || !-e $cachefile || -z $cachefile) {
5431 if ($self->{usecache}) {
5432 open ZONECACHE, ">$tmpcache" or die "Error creating temporary file $tmpcache: $!\n";
5433 $zonefilehandle = *ZONECACHE;
5434 }
5435
5436 # need to fetch this separately so the SOA comes first in the flatfile....
5437 # Just In Case we need/want to reimport from the flatfile later on.
5438 $soasth->execute($domid);
5439 my (@zsoa) = $soasth->fetchrow_array();
5440 _printrec_tiny($zonefilehandle, $zsoa[7], 'n',\%recflags,$dom,
5441 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5442
5443 $recsth->execute($domid);
5444 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc,$stamp,$expires,$stampactive) = $recsth->fetchrow_array) {
5445 next if $recflags{$recid};
5446
5447 # Check for out-of-zone data
5448 if ($host !~ /$dom$/) {
5449 warn "Not exporting out-of-zone record $host $type $val, $ttl (zone $dom)\n";
5450 next;
5451 }
5452
5453 # Spaces are evil.
5454 $host =~ s/^\s+//;
5455 $host =~ s/\s+$//;
5456 if ($typemap{$type} ne 'TXT') {
5457 # Leading or trailng spaces could be legit in TXT records.
5458 $val =~ s/^\s+//;
5459 $val =~ s/\s+$//;
5460 }
5461
5462 _printrec_tiny($zonefilehandle, $recid, 'n', \%recflags,
5463 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp, $expires, $stampactive);
5464
5465 $recflags{$recid} = 1;
5466
5467 } # while ($recsth)
5468
5469
5470 if ($self->{usecache}) {
5471 close ZONECACHE; # force the file to be written
5472 # catch obvious write errors that leave an empty temp file
5473 if (-s $tmpcache) {
5474 rename $tmpcache, $cachefile
5475 or die "Error overwriting cache file $cachefile with temporary file: $!\n";
5476 }
5477 }
5478
5479 } # if $changed or cache filesize is 0
5480
5481 };
5482 if ($@) {
5483 die "error writing ".($self->{usecache} ? 'new data for ' : '')."$dom: $@\n";
5484 # error! something borked, and we should be able to fall back on the old cache file
5485 # report the error, somehow.
5486 } else {
5487 # mark domain as unmodified. Only do this if no errors, that way
5488 # export failures should recover a little more automatically.
5489 $zonesth->execute($domid);
5490 }
5491
5492 if ($self->{usecache}) {
5493 # We've already made as sure as we can that a cached zone file is "good",
5494 # although possibly stale/obsolete due to errors creating a new one.
5495 eval {
5496 open CACHE, "<$cachefile" or die $!;
5497 print $datafile $_ or die "error copying cached $dom to master file: $!" while <CACHE>;
5498 close CACHE;
5499 };
5500 die $@ if $@;
5501 }
5502
5503 } # while ($domsth)
5504
5505 return 1;
5506} # end __export_tiny()
5507
5508
5509# Utility sub for __export_tiny above
5510sub _printrec_tiny {
5511 my ($datafile, $recid, $revrec, $recflags, $zone, $host, $type, $val, $dist, $weight, $port, $ttl,
5512 $loc, $stamp, $expires, $stampactive) = @_;
5513
5514 $loc = '' if !$loc; # de-nullify - just in case
5515##fixme: handle case of record-with-location-that-doesn't-exist better.
5516# note this currently fails safe (tested) - records with a location that
5517# doesn't exist will not be sent to any client
5518# $loc = '' if !$lochash->{$loc};
5519
5520
5521## Records that are valid only before or after a set time
5522
5523# record due to expire sometime is the complex case. we don't want to just
5524# rely on tinydns' auto-adjusting TTLs, because the default TTL in that case
5525# is one day instead of the SOA minttl as BIND might do.
5526
5527# consider the case where a record is set to expire a week ahead, but the next
5528# day later you want to change it NOW (or as NOWish as you get with your DNS
5529# management practice). but now you're stuck, because someone, somewhere,
5530# has just done a lookup before your latest change was published, and they'll
5531# be caching that old, broken record for 1 day instead of your zone default
5532# TTL.
5533
5534# $stamp-$ttl is the *latest* we can publish the record with the defined TTL
5535# to still have the expiry happen as scheduled, but we need to find some
5536# *earlier* point. We can maybe guess, and 2x TTL is probably reasonable,
5537# but we need info on the export frequency.
5538
5539# export the normal, non-expiring record up until $stamp-<guesstimate>, then
5540# switch to exporting a record with the TAI64 stamp and a 0 TTL so tinydns
5541# takes over TTL management.
5542
5543 if ($stampactive) {
5544 if ($expires) {
5545 # record expires at $stamp; decide if we need to keep the TTL and ignore
5546 # the stamp for a time or if we need to change the TTL to 0 and convert
5547 # $stamp to TAI64 so tinydns can use $stamp to autoadjust the TTL on the fly.
5548# extra hack, optimally needs more knowledge of data export frequency
5549# smack the idiot customer who insists on 0 TTLs; they can suck up and
5550# deal with a 10-minute TTL. especially on scheduled changes. note this
5551# should be (export freq * 2), but we don't know the actual export frequency.
5552$ttl = 300 if $ttl == 0; #hack phtui
5553 my $ahead = (86400 < $ttl*2 ? 86400 : $ttl*2);
5554 if ((time() + $ahead) < $stamp) {
5555 # more than 2x TTL OR more than one day (whichever is less) from expiry time; publish normal record
5556 $stamp = '';
5557 } else {
5558 # less than 2x TTL from expiry time, let tinydns take over TTL management and publish the TAI64 stamp.
5559 $ttl = 0;
5560 $stamp = unixtai64($stamp);
5561 $stamp =~ s/\@//;
5562 }
5563 } else {
5564 # record is "active after"; convert epoch from database to TAI64, publish, and collect $200.
5565 $stamp = unixtai64($stamp);
5566 $stamp =~ s/\@//;
5567 }
5568 } else {
5569 # flag for active timestamp is false; don't actually put a timestamp in the output
5570 $stamp = '';
5571 }
5572
5573 # support tinydns' auto-TTL
5574 $ttl = '' if $ttl == -1;
5575# these are WAY FREAKING HIGH - higher even than most TLD registry TTLs!
5576# NS 259200 => 3d
5577# all others 86400 => 1d
5578
5579 if ($revrec eq 'y') {
5580 $val = $zone if $val eq '@';
5581 } else {
5582 $host = $zone if $host eq '@';
5583 }
5584
5585 ## Convert a bare number into an octal-coded pair of octets.
5586 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
5587 sub octalize {
5588 my $tmp = shift;
5589 my $srctype = shift || 'h'; # default assumes hex string
5590 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
5591 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
5592 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
5593 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
5594 }
5595
5596## WARNING: This works to export even the whole Internet's worth of IP space...
5597## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
5598## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
5599## 0/0 is estimated to take ~54 hours and ~256G of disk
5600## RAM usage depends on how many non-template entries you have in the set.
5601## This should probably be done on record addition rather than export; large blocks may need to be done in a
5602## forked process
5603 sub __publish_subnet {
5604 my $sub = shift;
5605 my $recflags = shift;
5606 my $hpat = shift;
5607 my $fh = shift;
5608 my $ttl = shift;
5609 my $stamp = shift;
5610 my $loc = shift;
5611 my $ptronly = shift || 0;
5612
5613 my $iplist = $sub->splitref(32);
5614 foreach (@$iplist) {
5615 my $ip = $_->addr;
5616 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
5617 next if $ip =~ /\.(0|255)$/;
5618 next if $$recflags{$ip};
5619 $$recflags{$ip}++;
5620 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
5621 my $rec = $hpat; # start fresh with the template for each IP
5622 _template4_expand(\$rec, $ip);
5623 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
5624 ":$ttl:$stamp:$loc\n" or die $!;
5625 }
5626 }
5627
5628##fixme? append . to all host/val hostnames
5629 if ($typemap{$type} eq 'SOA') {
5630
5631 # host contains pri-ns:responsible
5632 # val is abused to contain refresh:retry:expire:minttl
5633##fixme: "manual" serial vs tinydns-autoserial
5634 # let's be explicit about abusing $host and $val
5635 my ($email, $primary) = (split /:/, $host)[0,1];
5636 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
5637 if ($revrec eq 'y') {
5638##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
5639# what about v6?
5640# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
5641 $zone = NetAddr::IP->new($zone);
5642 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5643 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
5644 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
5645 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5646 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5647 or die $!;
5648 }
5649 return; # skips "default" bits just below
5650 }
5651 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5652 }
5653 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n"
5654 or die $!;
5655
5656 } elsif ($typemap{$type} eq 'A') {
5657
5658 print $datafile "+$host:$val:$ttl:$stamp:$loc\n" or die $!;
5659
5660 } elsif ($typemap{$type} eq 'NS') {
5661
5662 if ($revrec eq 'y') {
5663 $val = NetAddr::IP->new($val);
5664 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5665 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
5666 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
5667 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5668 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5669 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5670 $$recflags{$szone2} = $val->masklen;
5671 }
5672 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
5673 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
5674 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
5675 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5676 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5677 $$recflags{$szone2} = $val->masklen;
5678 }
5679 } else {
5680 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5681 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n" or die $!;
5682 $$recflags{$val2} = $val->masklen;
5683 }
5684 } else {
5685 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n" or die $!;
5686 }
5687
5688 } elsif ($typemap{$type} eq 'AAAA') {
5689
5690# print $datafile ":$host:28:";
5691 my $altgrp = 0;
5692 my @altconv;
5693 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
5694 foreach (split /:/, $val) {
5695 if (/^$/) {
5696 # flag blank entry; this is a series of 0's of (currently) unknown length
5697 $altconv[$altgrp++] = 's';
5698 } else {
5699 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
5700 $altconv[$altgrp++] = octalize($_)
5701 }
5702 }
5703 my $prefix = ":$host:28:";
5704 foreach my $octet (@altconv) {
5705 # if not 's', output
5706 $prefix .= $octet unless $octet =~ /^s$/;
5707 # if 's', output (9-array length)x literal '\000\000'
5708 $prefix .= '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
5709 }
5710 print $datafile "$prefix:$ttl:$stamp:$loc\n" or die $!;
5711
5712 } elsif ($typemap{$type} eq 'MX') {
5713
5714##fixme: what if we get an MX AXFRed into a reverse zone?
5715 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n" or die $!;
5716
5717 } elsif ($typemap{$type} eq 'TXT') {
5718
5719##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
5720 if ($revrec eq 'n') {
5721 $val =~ s/:/\\072/g; # may need to replace other symbols
5722 print $datafile "'$host:$val:$ttl:$stamp:$loc\n" or die $!;
5723 } else {
5724 $host =~ s/:/\\072/g; # may need to replace other symbols
5725 my $val2 = NetAddr::IP->new($val);
5726 print $datafile "'"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5727 ":$host:$ttl:$stamp:$loc\n" or die $!;
5728 }
5729
5730# by-hand TXT
5731#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
5732#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
5733#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
5734
5735#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
5736#: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
5737
5738# very long TXT record as brought in by axfr-get
5739# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
5740# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
5741#:longtxt.deepnet.cx:16:
5742#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
5743#\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.
5744#\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.
5745#:3600
5746
5747 } elsif ($typemap{$type} eq 'CNAME') {
5748
5749 if ($revrec eq 'n') {
5750 print $datafile "C$host:$val:$ttl:$stamp:$loc\n" or die $!;
5751 } else {
5752 my $val2 = NetAddr::IP->new($val);
5753 print $datafile "C"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5754 ":$host:$ttl:$stamp:$loc\n" or die $!;
5755 }
5756
5757 } elsif ($typemap{$type} eq 'SRV') {
5758
5759 # data is two-byte values for priority, weight, port, in that order,
5760 # followed by length/string data
5761
5762 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d') or die $!;
5763
5764 $val .= '.' if $val !~ /\.$/;
5765 foreach (split /\./, $val) {
5766 printf $datafile "\\%0.3o%s", length($_), $_ or die $!;
5767 }
5768 print $datafile "\\000:$ttl:$stamp:$loc\n" or die $!;
5769
5770 } elsif ($typemap{$type} eq 'RP') {
5771
5772 # RP consists of two mostly free-form strings.
5773 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
5774 # The second is the "hostname" of a TXT record with more info.
5775 my $prefix = ":$host:17:";
5776 my ($who,$what) = split /\s/, $val;
5777 foreach (split /\./, $who) {
5778 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5779 }
5780 $prefix .= '\000';
5781 foreach (split /\./, $what) {
5782 $prefix .= sprintf "\\%0.3o%s", length($_), $_;
5783 }
5784 print $datafile "$prefix\\000:$ttl:$stamp:$loc\n" or die $!;
5785
5786 } elsif ($typemap{$type} eq 'PTR') {
5787
5788 $zone = NetAddr::IP->new($zone);
5789 $$recflags{$val}++;
5790 if (!$zone->{isv6} && $zone->masklen > 24) {
5791 ($val) = ($val =~ /\.(\d+)$/);
5792 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
5793 ":$host:$ttl:$stamp:$loc\n" or die $!;
5794 } else {
5795 $val = NetAddr::IP->new($val);
5796 print $datafile "^".
5797 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5798 ":$host:$ttl:$stamp:$loc\n" or die $!;
5799 }
5800
5801 } elsif ($type == 65280) { # A+PTR
5802
5803 $$recflags{$val}++;
5804 print $datafile "=$host:$val:$ttl:$stamp:$loc\n" or die $!;
5805
5806 } elsif ($type == 65281) { # AAAA+PTR
5807
5808 $$recflags{$val}++;
5809 # treat these as two separate records. since tinydns doesn't have
5810 # a native combined type, we have to create them separately anyway.
5811 # print both; a dangling record is harmless, and impossible via web
5812 # UI anyway
5813 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,28,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5814 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,12,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5815##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
5816# type 6 is for AAAA+PTR, type 3 is for AAAA
5817
5818 } elsif ($type == 65282) { # PTR template
5819
5820 # only useful for v4 with standard DNS software, since this expands all
5821 # IPs in $zone (or possibly $val?) with autogenerated records
5822 $val = NetAddr::IP->new($val);
5823 return if $val->{isv6};
5824
5825 if ($val->masklen <= 16) {
5826 foreach my $sub ($val->split(16)) {
5827 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5828 }
5829 } else {
5830 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5831 }
5832
5833 } elsif ($type == 65283) { # A+PTR template
5834
5835 $val = NetAddr::IP->new($val);
5836 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
5837 return if $val->{isv6};
5838
5839 if ($val->masklen <= 16) {
5840 foreach my $sub ($val->split(16)) {
5841 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5842 }
5843 } else {
5844 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5845 }
5846
5847 } elsif ($type == 65284) { # AAAA+PTR template
5848 # Stub for completeness. Could be exported to DNS software that supports
5849 # some degree of internal automagic in generic-record-creation
5850 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
5851
5852 } elsif ($type == 65285) { # Delegation
5853 # This is intended for reverse zones, but may prove useful in forward zones.
5854
5855 # All delegations need to create one or more NS records. The NS record handler knows what to do.
5856 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
5857 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
5858 if ($revrec eq 'y') {
5859 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
5860 # to redirect all of the individual IP lookups as well.
5861 # Not sure how this would actually resolve if a /24 or larger was delegated
5862 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
5863 my $dblock = NetAddr::IP->new($val);
5864 if (!$dblock->{isv6} && $dblock->masklen > 24) {
5865 my @subs = $dblock->split;
5866 foreach (@subs) {
5867 next if $$recflags{"$_"};
5868 my ($oct) = ($_->addr =~ /(\d+)$/);
5869 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
5870 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n" or die $!;
5871 $$recflags{"$_"}++;
5872 }
5873 }
5874 }
5875
5876##
5877## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
5878##
5879
5880 } elsif ($type == 44) { # SSHFP
5881 my ($algo,$fpt,$fp) = split /\s+/, $val;
5882
5883 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
5884 while (my ($byte) = ($fp =~ /^(..)/) ) {
5885 $rec .= sprintf "\\%0.3o", hex($byte);
5886 $fp =~ s/^..//;
5887 }
5888 print $datafile "$rec:$ttl:$stamp:$loc\n" or die $!;
5889
5890 } else {
5891 # raw record. we don't know what's in here, so we ASS-U-ME the user has
5892 # put it in correctly, since either the user is messing directly with the
5893 # database, or the record was imported via AXFR
5894 # <split by char>
5895 # convert anything not a-zA-Z0-9.- to octal coding
5896
5897##fixme: add flag to export "unknown" record types - note we'll probably end up
5898# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
5899 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
5900
5901 } # record type if-else
5902
5903} # end _printrec_tiny()
5904
5905
5906## DNSDB::mailNotify()
5907# Sends notification mail to recipients regarding a DNSDB operation
5908sub mailNotify {
5909 my $self = shift;
5910 my $dbh = $self->{dbh};
5911 my ($subj,$message) = @_;
5912
5913 return if $self->{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
5914
5915 my $mailer = Net::SMTP->new($self->{mailhost}, Hello => "dnsadmin.$self->{domain}");
5916
5917 my $mailsender = ($self->{mailsender} ? $self->{mailsender} : $self->{mailnotify});
5918
5919 $mailer->mail($mailsender);
5920 $mailer->to($self->{mailnotify});
5921 $mailer->data("From: \"$self->{mailname}\" <$mailsender>\n",
5922 "To: <$self->{mailnotify}>\n",
5923 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
5924 "Subject: $subj\n",
5925 "X-Mailer: DNSAdmin v".$DNSDB::VERSION." Notify\n",
5926 "Organization: $self->{orgname}\n",
5927 "\n$message\n");
5928 $mailer->quit;
5929}
5930
5931# shut Perl up
59321;
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