source: trunk/DNSDB.pm@ 514

Last change on this file since 514 was 514, checked in by Kris Deugau, 12 years ago

/trunk

Drop die() on SELECT failure (since we don't fail on any other bare
SELECTs); leave ##fixme tag Just In Case there may end up being a
Really Good Reason to die() there on failure.
  • Property svn:keywords set to Date Rev Author Id
File size: 192.8 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 514 2013-05-22 21:55:29Z 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 Net::SMTP;
30use NetAddr::IP qw(:lower);
31use POSIX;
32use Fcntl qw(:flock);
33
34use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
35
36$VERSION = 1.1; ##VERSION##
37@ISA = qw(Exporter);
38@EXPORT_OK = qw(
39 &initGlobals &login &initActionLog
40 &getPermissions &changePermissions &comparePermissions
41 &changeGroup
42 &loadConfig &connectDB &finish
43 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
44 &getZoneCount &getZoneList &getZoneLocation
45 &addGroup &delGroup &getChildren &groupName
46 &getGroupCount &getGroupList
47 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
48 &getUserCount &getUserList &getUserDropdown
49 &addLoc &updateLoc &delLoc &getLoc
50 &getLocCount &getLocList &getLocDropdown
51 &getSOA &updateSOA &getRecLine &getRecList &getRecCount
52 &addRec &updateRec &delRec
53 &getLogCount &getLogEntries
54 &getRevPattern
55 &getTypelist
56 &parentID
57 &isParent
58 &zoneStatus &getZonesByCIDR &importAXFR
59 &export
60 &mailNotify
61 %typemap %reverse_typemap %config
62 @permtypes $permlist %permchains
63 );
64
65@EXPORT = qw(%typemap %reverse_typemap @permtypes $permlist %permchains);
66%EXPORT_TAGS = ( ALL => [qw(
67 &initGlobals &login &initActionLog
68 &getPermissions &changePermissions &comparePermissions
69 &changeGroup
70 &loadConfig &connectDB &finish
71 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
72 &getZoneCount &getZoneList &getZoneLocation
73 &addGroup &delGroup &getChildren &groupName
74 &getGroupCount &getGroupList
75 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
76 &getUserCount &getUserList &getUserDropdown
77 &addLoc &updateLoc &delLoc &getLoc
78 &getLocCount &getLocList &getLocDropdown
79 &getSOA &updateSOA &getRecLine &getRecList &getRecCount
80 &addRec &updateRec &delRec
81 &getLogCount &getLogEntries
82 &getRevPattern
83 &getTypelist
84 &parentID
85 &isParent
86 &zoneStatus &getZonesByCIDR &importAXFR
87 &export
88 &mailNotify
89 %typemap %reverse_typemap %config
90 @permtypes $permlist %permchains
91 )]
92 );
93
94our $errstr = '';
95our $resultstr = '';
96
97# Halfway sane defaults for SOA, TTL, etc.
98# serial defaults to 0 for convenience.
99# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
100our %def = qw (
101 contact hostmaster.DOMAIN
102 prins ns1.myserver.com
103 serial 0
104 soattl 86400
105 refresh 10800
106 retry 3600
107 expire 604800
108 minttl 10800
109 ttl 10800
110);
111
112# Arguably defined wholly in the db, but little reason to change without supporting code changes
113# group_view, user_view permissions? separate rDNS permission(s)?
114our @permtypes = qw (
115 group_edit group_create group_delete
116 user_edit user_create user_delete
117 domain_edit domain_create domain_delete
118 record_edit record_create record_delete record_locchg
119 location_edit location_create location_delete location_view
120 self_edit admin
121);
122our $permlist = join(',',@permtypes);
123
124# Some permissions more or less require certain others.
125our %permchains = (
126 user_edit => 'self_edit',
127 location_edit => 'location_view',
128 location_create => 'location_view',
129 location_delete => 'location_view',
130 record_locchg => 'location_view',
131);
132
133# DNS record type map and reverse map.
134# loaded from the database, from http://www.iana.org/assignments/dns-parameters
135our %typemap;
136our %reverse_typemap;
137
138# Prepopulate a basic config. Note some of these *will* cause errors if left unset.
139# note: add appropriate stanzas in loadConfig to parse these
140our %config = (
141 # Database connection info
142 dbname => 'dnsdb',
143 dbuser => 'dnsdb',
144 dbpass => 'secret',
145 dbhost => '',
146
147 # Email notice settings
148 mailhost => 'smtp.example.com',
149 mailnotify => 'dnsdb@example.com', # to
150 mailsender => 'dnsdb@example.com', # from
151 mailname => 'DNS Administration',
152 orgname => 'Example Corp',
153 domain => 'example.com',
154
155 # Template directory
156 templatedir => 'templates/',
157# fmeh. this is a real web path, not a logical internal one. hm..
158# cssdir => 'templates/',
159 sessiondir => 'session/',
160 exportcache => 'cache/',
161
162 # Session params
163 timeout => '3600', # 1 hour default
164
165 # Other miscellanea
166 log_failures => 1, # log all evarthing by default
167 perpage => 15,
168 maxfcgi => 100, # reasonable default?
169 );
170
171## (Semi)private variables
172
173# Hash of functions for validating record types. Filled in initGlobals() since
174# it relies on visibility flags from the rectypes table in the DB
175my %validators;
176
177# Entity-relationship reference hashes.
178my %par_tbl = (
179 group => 'groups',
180 user => 'users',
181 defrec => 'default_records',
182 defrevrec => 'default_rev_records',
183 domain => 'domains',
184 revzone => 'revzones',
185 record => 'records'
186 );
187my %id_col = (
188 group => 'group_id',
189 user => 'user_id',
190 defrec => 'record_id',
191 defrevrec => 'record_id',
192 domain => 'domain_id',
193 revzone => 'rdns_id',
194 record => 'record_id'
195 );
196my %par_col = (
197 group => 'parent_group_id',
198 user => 'group_id',
199 defrec => 'group_id',
200 defrevrec => 'group_id',
201 domain => 'group_id',
202 revzone => 'group_id',
203 record => 'domain_id'
204 );
205my %par_type = (
206 group => 'group',
207 user => 'group',
208 defrec => 'group',
209 defrevrec => 'group',
210 domain => 'group',
211 revzone => 'group',
212 record => 'domain'
213 );
214
215##
216## Constructor and destructor
217##
218
219sub new {
220 my $this = shift;
221 my $class = ref($this) || $this;
222 my %args = @_;
223##fixme? to ponder: do we do some magic if the caller sets eg dbname to prevent parsing of the config file?
224 if (!loadConfig(basename => $args{configfile})) {
225 warn "Using default configuration; unable to load custom settings: $errstr\n";
226 }
227 my $self = \%config;
228 $self->{configfile} = $args{configfile};
229 bless $self, $class;
230 $self->{dbh} = connectDB($self->{dbname}, $self->{dbuser}, $self->{dbpass}, $self->{dbhost}) or return;
231 $self->initGlobals();
232
233 return $self;
234}
235
236sub DESTROY {
237 my $self = shift;
238 $self->{dbh}->disconnect;
239}
240
241sub errstr { $DNSDB::errstr; }
242
243##
244## utility functions
245##
246
247## DNSDB::_rectable()
248# Takes default+rdns flags, returns appropriate table name
249sub _rectable {
250 my $def = shift;
251 my $rev = shift;
252
253 return 'records' if $def ne 'y';
254 return 'default_records' if $rev ne 'y';
255 return 'default_rev_records';
256} # end _rectable()
257
258## DNSDB::_recparent()
259# Takes default+rdns flags, returns appropriate parent-id column name
260sub _recparent {
261 my $def = shift;
262 my $rev = shift;
263
264 return 'group_id' if $def eq 'y';
265 return 'rdns_id' if $rev eq 'y';
266 return 'domain_id';
267} # end _recparent()
268
269## DNSDB::_ipparent()
270# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
271# Takes default and reverse flags, IP (fragment) to check, parent zone ID,
272# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
273# database insertion)
274sub _ipparent {
275 my $self = shift;
276 my $dbh = $self->{dbh};
277 my $defrec = shift;
278 my $revrec = shift;
279 my $val = shift;
280 my $id = shift;
281 my $addr = shift;
282
283 return if $revrec ne 'y'; # this sub not useful in forward zones
284
285 $$addr = NetAddr::IP->new($$val); #necessary?
286
287 # subsub to split, reverse, and overlay an IP fragment on a netblock
288 sub __rev_overlay {
289 my $splitme = shift; # ':' or '.', m'lud?
290 my $parnet = shift;
291 my $val = shift;
292 my $addr = shift;
293
294 my $joinme = $splitme;
295 $splitme = '\.' if $splitme eq '.';
296 my @working = reverse(split($splitme, $parnet->addr));
297 my @parts = reverse(split($splitme, $$val));
298 for (my $i = 0; $i <= $#parts; $i++) {
299 $working[$i] = $parts[$i];
300 }
301 my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
302 return 0 unless $checkme->within($parnet);
303 $$addr = $checkme; # force "correct" IP to be recorded.
304 return 1;
305 }
306
307 my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
308 my $parnet = NetAddr::IP->new($parstr);
309
310 # Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
311 return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
312 return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
313
314 if ($$addr && ($$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/ || $$val =~ m|/\d+$|)) {
315 # the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address,
316 # or a netblock (only expected on templates)
317 # the rest we have to restructure before fiddling. *sigh*
318 return 1 if $$addr->within($parnet);
319 } else {
320 # We don't have a complete IP in $$val (yet)... unless we have a netblock
321 if ($parnet->addr =~ /:/) {
322 $$val =~ s/^:+//; # gotta strip'em all...
323 return __rev_overlay(':', $parnet, $val, $addr);
324 }
325 if ($parnet->addr =~ /\./) {
326 $$val =~ s/^\.+//;
327 return __rev_overlay('.', $parnet, $val, $addr);
328 }
329 # should be impossible to get here...
330 }
331 # ... and here.
332 # can't do nuttin' in forward zones
333} # end _ipparent()
334
335## DNSDB::_hostparent()
336# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
337# Takes a hostname.
338# Returns the domain ID of the parent domain if one was found.
339sub _hostparent {
340 my $self = shift;
341 my $dbh = $self->{dbh};
342 my $hname = shift;
343
344 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
345 my @hostbits = split /\./, $hname;
346 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE lower(domain) = lower(?) GROUP BY domain_id");
347 foreach (@hostbits) {
348 $sth->execute($hname);
349 my ($found, $parid) = $sth->fetchrow_array;
350 if ($found) {
351 return $parid;
352 }
353 $hname =~ s/^$_\.//;
354 }
355} # end _hostparent()
356
357## DNSDB::_log()
358# Log an action
359# Takes a log entry hash containing at least:
360# group_id, log entry
361# and optionally one or more of:
362# domain_id, rdns_id
363# The %userdata hash provides the user ID, username, and fullname
364sub _log {
365 my $self = shift;
366 my $dbh = $self->{dbh};
367
368 my %args = @_;
369
370 $args{rdns_id} = 0 if !$args{rdns_id};
371 $args{domain_id} = 0 if !$args{domain_id};
372
373##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
374# if ($config{log_channel} eq 'sql') {
375 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
376 undef,
377 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
378 $self->{loguserid}, $self->{logusername}, $self->{logfullname}) );
379# } elsif ($config{log_channel} eq 'file') {
380# } elsif ($config{log_channel} eq 'syslog') {
381# }
382} # end _log
383
384
385##
386## Record validation subs.
387##
388
389## All of these subs take substantially the same arguments:
390# a hash containing at least the following keys:
391# - defrec (default/live flag)
392# - revrec (forward/reverse flag)
393# - id (parent entity ID)
394# - host (hostname)
395# - rectype
396# - val (IP, hostname [CNAME/MX/SRV] or text)
397# - addr (NetAddr::IP object from val. May be undef.)
398# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
399# host, rectype, and addr should be references as these may be modified in validation
400
401# A record
402sub _validate_1 {
403 my $self = shift;
404 my $dbh = $self->{dbh};
405
406 my %args = @_;
407
408 return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
409
410 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
411 # or the intended parent domain for live records.
412 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
413 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
414
415 # Check IP is well-formed, and that it's a v4 address
416 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
417 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
418 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
419 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
420 unless $args{addr} && !$args{addr}->{isv6};
421 # coerce IP/value to normalized form for storage
422 ${$args{val}} = $args{addr}->addr;
423
424 return ('OK','OK');
425} # done A record
426
427# NS record
428sub _validate_2 {
429 my $self = shift;
430 my $dbh = $self->{dbh};
431
432 my %args = @_;
433
434 # Check that the target of the record is within the parent.
435 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
436 if ($args{defrec} eq 'n') {
437 # Check if IP/address/zone/"subzone" is within the parent
438 if ($args{revrec} eq 'y') {
439 my $tmpip = NetAddr::IP->new(${$args{val}});
440 my $pname = $self->revName($args{id});
441 return ('FAIL',"${$args{val}} not within $pname")
442 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
443 # Sub the returned thing for ZONE? This could get stupid if you have typos...
444 ${$args{val}} =~ s/ZONE/$tmpip->address/;
445 } else {
446 my $pname = $self->domainName($args{id});
447 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
448 }
449 } else {
450 # Default reverse NS records should always refer to the implied parent
451 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
452 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
453 }
454
455# Let this lie for now. Needs more magic.
456# # Check IP is well-formed, and that it's a v4 address
457# return ('FAIL',"A record must be a valid IPv4 address")
458# unless $addr && !$addr->{isv6};
459# # coerce IP/value to normalized form for storage
460# $$val = $addr->addr;
461
462 return ('OK','OK');
463} # done NS record
464
465# CNAME record
466sub _validate_5 {
467 my $self = shift;
468 my $dbh = $self->{dbh};
469
470 my %args = @_;
471
472# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
473# This is fundamentally a messy operation and should really just be taken care of by the
474# export process, not manual maintenance of the necessary records.
475 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
476
477 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
478 # or the intended parent domain for live records.
479 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
480 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
481
482 return ('OK','OK');
483} # done CNAME record
484
485# SOA record
486sub _validate_6 {
487 # Smart monkeys won't stick their fingers in here; we have
488 # separate dedicated routines to deal with SOA records.
489 return ('OK','OK');
490} # done SOA record
491
492# PTR record
493sub _validate_12 {
494 my $self = shift;
495 my $dbh = $self->{dbh};
496
497 my %args = @_;
498
499 if ($args{revrec} eq 'y') {
500 if ($args{defrec} eq 'n') {
501 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
502 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
503 ${$args{val}} = $args{addr}->addr;
504 } else {
505 if (${$args{val}} =~ /\./) {
506 # looks like a v4 or fragment
507 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
508 # woo! a complete IP! validate it and normalize, or fail.
509 $args{addr} = NetAddr::IP->new(${$args{val}})
510 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
511 ${$args{val}} = $args{addr}->addr;
512 } else {
513 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
514 }
515 } elsif (${$args{val}} =~ /[a-f:]/) {
516 # looks like a v6 or fragment
517 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
518 if ($args{addr}) {
519 if ($args{addr}->addr =~ /^0/) {
520 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
521 } else {
522 ${$args{val}} = $args{addr}->addr;
523 }
524 }
525 } else {
526 # bare number (probably). These could be v4 or v6, so we'll
527 # expand on these on creation of a reverse zone.
528 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
529 }
530 ${$args{host}} =~ s/\.*$/\.$config{domain}/ if ${$args{host}} !~ /(?:$config{domain}|ADMINDOMAIN)$/;
531 }
532
533# Multiple PTR records do NOT generally do what most people believe they do,
534# and tend to fail in the most awkward way possible. Check and warn.
535# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
536
537 my @checkvals = (${$args{val}});
538 if (${$args{val}} =~ /,/) {
539 # push . and :: variants into checkvals if val has ,
540 my $tmp;
541 ($tmp = ${$args{val}}) =~ s/,/./;
542 push @checkvals, $tmp;
543 ($tmp = ${$args{val}}) =~ s/,/::/;
544 push @checkvals, $tmp;
545 }
546 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
547 foreach my $checkme (@checkvals) {
548 if ($args{update}) {
549 # Record update. There should usually be an existing PTR (the record being updated)
550 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
551 " WHERE val = ?", undef, ($checkme)) };
552 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
553 if @ptrs && (!grep /^$args{update}$/, @ptrs);
554 } else {
555 # New record. Always warn if a PTR exists
556 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
557 " WHERE val = ?", undef, ($checkme));
558 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
559 if $ptrcount;
560 }
561 }
562
563 } else {
564 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
565 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
566 # PTR records on export
567 return ('FAIL',"Forward zones cannot contain PTR records");
568 }
569
570 return ('OK','OK');
571} # done PTR record
572
573# MX record
574sub _validate_15 {
575 my $self = shift;
576 my $dbh = $self->{dbh};
577
578 my %args = @_;
579
580# Not absolutely true but WTF use is an MX record for a reverse zone?
581 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
582
583 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
584 ${$args{dist}} =~ s/\s*//g;
585 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
586
587 ${$args{fields}} = "distance,";
588 push @{$args{vallist}}, ${$args{dist}};
589
590 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
591 # or the intended parent domain for live records.
592 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
593 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
594
595# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
596# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
597# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
598# return ('FAIL',"$val is not a valid IP address") if !$addr;
599# }
600# }
601
602 return ('OK','OK');
603} # done MX record
604
605# TXT record
606sub _validate_16 {
607 # Could arguably put a WARN return here on very long (>512) records
608 return ('OK','OK');
609} # done TXT record
610
611# RP record
612sub _validate_17 {
613 # Probably have to validate these some day
614 return ('OK','OK');
615} # done RP record
616
617# AAAA record
618sub _validate_28 {
619 my $self = shift;
620 my $dbh = $self->{dbh};
621
622 my %args = @_;
623
624 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
625
626 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
627 # or the intended parent domain for live records.
628 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
629 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
630
631 # Check IP is well-formed, and that it's a v6 address
632 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
633 unless $args{addr} && $args{addr}->{isv6};
634 # coerce IP/value to normalized form for storage
635 ${$args{val}} = $args{addr}->addr;
636
637 return ('OK','OK');
638} # done AAAA record
639
640# SRV record
641sub _validate_33 {
642 my $self = shift;
643 my $dbh = $self->{dbh};
644
645 my %args = @_;
646
647# Not absolutely true but WTF use is an SRV record for a reverse zone?
648 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
649
650 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
651 ${$args{dist}} =~ s/\s*//g;
652 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
653
654 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
655 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
656 return ('FAIL',"Port and weight are required for SRV records")
657 unless defined(${$args{weight}}) && defined(${$args{port}});
658 ${$args{weight}} =~ s/\s*//g;
659 ${$args{port}} =~ s/\s*//g;
660
661 return ('FAIL',"Port and weight are required, and must be numeric")
662 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
663
664 ${$args{fields}} = "distance,weight,port,";
665 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
666
667 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
668 # or the intended parent domain for live records.
669 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : $self->domainName($args{id}));
670 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
671
672 return ('OK','OK');
673} # done SRV record
674
675# Now the custom types
676
677# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
678sub _validate_65280 {
679 my $self = shift;
680 my $dbh = $self->{dbh};
681
682 my %args = @_;
683
684 my $code = 'OK';
685 my $msg = 'OK';
686
687 if ($args{defrec} eq 'n') {
688 # live record; revrec determines whether we validate the PTR or A component first.
689
690 if ($args{revrec} eq 'y') {
691 ($code,$msg) = $self->_validate_12(%args);
692 return ($code,$msg) if $code eq 'FAIL';
693
694 # check A+PTR is really v4
695 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
696 if ${$args{rectype}} == 65280 && $args{addr}->{isv6};
697 # check AAAA+PTR is really v6
698 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
699 if ${$args{rectype}} == 65281 && !$args{addr}->{isv6};
700
701 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
702 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
703 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
704 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
705 $msg .= "\n$addmsg" if $code eq 'WARN';
706 $msg = $addmsg if $code eq 'OK';
707 ${$args{rectype}} = $reverse_typemap{PTR};
708 return ('WARN', $msg);
709 }
710
711 # Add domain ID to field list and values
712 ${$args{fields}} .= "domain_id,";
713 push @{$args{vallist}}, ${$args{domid}};
714
715 } else {
716 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
717 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
718 return ($code,$msg) if $code eq 'FAIL';
719
720 # Check if the requested reverse zone exists - note, an IP fragment won't
721 # work here since we don't *know* which parent to put it in.
722 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
723 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
724 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
725 if (!$revid) {
726 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
727 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
728 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
729 return ('WARN', $msg);
730 }
731
732 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
733 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
734 if ($args{update}) {
735 # Record update. There should usually be an existing PTR (the record being updated)
736 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
737 " WHERE val = ?", undef, (${$args{val}})) };
738 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
739 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
740 $code = 'WARN';
741 }
742 } else {
743 # New record. Always warn if a PTR exists
744 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
745 " WHERE val = ?", undef, (${$args{val}}));
746 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
747 if $ptrcount;
748 $code = 'WARN' if $ptrcount;
749 }
750
751# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
752# " WHERE val = ?", undef, ${$args{val}});
753# if ($ptrcount) {
754# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
755# " WHERE val = ?
756# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
757# $code = 'WARN';
758# }
759
760 ${$args{fields}} .= "rdns_id,";
761 push @{$args{vallist}}, $revid;
762 }
763
764 } else { # defrec eq 'y'
765 if ($args{revrec} eq 'y') {
766 ($code,$msg) = $self->_validate_12(%args);
767 return ($code,$msg) if $code eq 'FAIL';
768 if (${$args{rectype}} == 65280) {
769 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
770 if ${$args{val}} =~ /:/;
771 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
772 } elsif (${$args{rectype}} == 65281) {
773 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
774 if ${$args{val}} =~ /\./;
775 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
776 }
777 } else {
778 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
779 # domains, since you wouldn't be able to substitute both domain and reverse zone
780 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
781 # confuse the hell out of pretty much anything that uses them.
782##fixme: make this a config flag?
783 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
784 }
785 }
786
787 return ($code, $msg);
788} # done A+PTR record
789
790# AAAA+PTR record
791# A+PTR above has been magicked to handle AAAA+PTR as well.
792sub _validate_65281 {
793 return _validate_65280(@_);
794} # done AAAA+PTR record
795
796# PTR template record
797sub _validate_65282 {
798 my $self = shift;
799 my $dbh = $self->{dbh};
800
801 my %args = @_;
802
803 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
804 if ($args{revrec} eq 'y') {
805 if ($args{defrec} eq 'n') {
806 return ('FAIL', "Template block ${$args{val}} is not within ".$self->revName($args{id}))
807 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
808##fixme: warn if $args{val} is not /31 or larger block?
809 ${$args{val}} = "$args{addr}";
810 } else {
811 if (${$args{val}} =~ /\./) {
812 # looks like a v4 or fragment
813 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
814 # woo! a complete IP! validate it and normalize, or fail.
815 $args{addr} = NetAddr::IP->new(${$args{val}})
816 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
817 ${$args{val}} = "$args{addr}";
818 } else {
819 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
820 }
821 } elsif (${$args{val}} =~ /[a-f:]/) {
822 # looks like a v6 or fragment
823 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
824 if ($args{addr}) {
825 if ($args{addr}->addr =~ /^0/) {
826 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
827 } else {
828 ${$args{val}} = "$args{addr}";
829 }
830 }
831 } else {
832 # bare number (probably). These could be v4 or v6, so we'll
833 # expand on these on creation of a reverse zone.
834 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
835 }
836 }
837##fixme: validate %-patterns?
838
839# Unlike single PTR records, there is absolutely no way to sanely support multiple
840# PTR templates for the same block, since they expect to expand to all the individual
841# IPs on export. Nested templates should be supported though.
842
843 my @checkvals = (${$args{val}});
844 if (${$args{val}} =~ /,/) {
845 # push . and :: variants into checkvals if val has ,
846 my $tmp;
847 ($tmp = ${$args{val}}) =~ s/,/./;
848 push @checkvals, $tmp;
849 ($tmp = ${$args{val}}) =~ s/,/::/;
850 push @checkvals, $tmp;
851 }
852##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
853# Per Netblock such that they don't conflict on export
854 my $typeck;
855# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
856 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
857# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
858 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
859# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
860 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
861 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
862 "AND (type=65282 OR $typeck)");
863 foreach my $checkme (@checkvals) {
864 $pcsth->execute($checkme);
865 my ($rc) = $pcsth->fetchrow_array;
866 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
867 }
868
869 } else {
870 return ('FAIL', "Forward zones cannot contain PTR records");
871 }
872
873 return ('OK','OK');
874} # done PTR template record
875
876# A+PTR template record
877sub _validate_65283 {
878 my $self = shift;
879 my $dbh = $self->{dbh};
880
881 my %args = @_;
882
883 my ($code,$msg) = ('OK','OK');
884
885##fixme: need to fiddle things since A+PTR templates are acceptable in live
886# forward zones but not default records
887 if ($args{defrec} eq 'n') {
888 if ($args{revrec} eq 'n') {
889 ($code,$msg) = $self->_validate_1(%args) if ${$args{rectype}} == 65280;
890 ($code,$msg) = $self->_validate_28(%args) if ${$args{rectype}} == 65281;
891 return ($code,$msg) if $code eq 'FAIL';
892
893 # Check if the requested reverse zone exists - note, an IP fragment won't
894 # work here since we don't *know* which parent to put it in.
895 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
896 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
897 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
898 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
899 if (!$revid) {
900 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
901 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
902##fixme: add A template, AAAA template types?
903# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
904 return ('FAIL', $msg);
905 }
906
907 # Add reverse zone ID to field list and values
908 ${$args{fields}} .= "rdns_id,";
909 push @{$args{vallist}}, $revid;
910
911 } else {
912 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".$self->revName($args{id}))
913 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
914 ${$args{val}} = "$args{addr}";
915
916 if (!(${$args{domid}} = $self->_hostparent(${$args{host}}))) {
917 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
918 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
919 $msg .= "\n$addmsg" if $code eq 'WARN';
920 $msg = $addmsg if $code eq 'OK';
921 ${$args{rectype}} = 65282;
922 return ('WARN', $msg);
923 }
924
925 # Add domain ID to field list and values
926 ${$args{fields}} .= "domain_id,";
927 push @{$args{vallist}}, ${$args{domid}};
928 }
929
930 } else {
931 my ($code,$msg) = $self->_validate_65282(%args);
932 return ($code, $msg) if $code eq 'FAIL';
933 # get domain, check against ${$args{name}}
934 }
935
936 return ('OK','OK');
937} # done AAAA+PTR template record
938
939# AAAA+PTR template record
940sub _validate_65284 {
941 return ('OK','OK');
942} # done AAAA+PTR template record
943
944# Delegation record
945# This is essentially a specialized clone of the NS record, primarily useful
946# for delegating IPv4 sub-/24 reverse blocks
947sub _validate_65285 {
948 my $self = shift;
949 my $dbh = $self->{dbh};
950
951 my %args = @_;
952
953# Almost, but not quite, identical to NS record validation.
954
955 # Check that the target of the record is within the parent.
956 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
957 if ($args{defrec} eq 'n') {
958 # Check if IP/address/zone/"subzone" is within the parent
959 if ($args{revrec} eq 'y') {
960 my $tmpip = NetAddr::IP->new(${$args{val}});
961 my $pname = $self->revName($args{id});
962 return ('FAIL',"${$args{val}} not within $pname")
963 unless $self->_ipparent($args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
964 # Normalize
965 ${$args{val}} = "$tmpip";
966 } else {
967 my $pname = $self->domainName($args{id});
968 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
969 }
970 } else {
971 return ('FAIL',"Delegation records are not permitted in default record sets");
972 }
973 return ('OK','OK');
974}
975
976
977##
978## Record data substitution subs
979##
980
981# Replace ZONE in hostname, or create (most of) the actual proper zone name
982sub _ZONE {
983 my $zone = shift;
984 my $string = shift;
985 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
986 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
987
988 my $prefix;
989
990 $string =~ s/,/./ if !$zone->{isv6};
991 $string =~ s/,/::/ if $zone->{isv6};
992
993 # Subbing ZONE in the host. We need to properly ID the netblock range
994 # The subbed text should have "network IP with trailing zeros stripped" for
995 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
996 # For blocks that do NOT line up on these boundaries, we take the most
997 # significant octet or 16-bit chunk of the "broadcast" IP and append it
998 # after a double-dash
999 # ie:
1000 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
1001 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
1002 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
1003 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
1004 # Similar for v6
1005
1006 if (!$zone->{isv6}) { # IPv4
1007
1008 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1009 # a funky subnet that had host bits set.
1010 my $bc = $zone->broadcast->addr;
1011
1012 if ($zone->masklen > 24) {
1013 $bc =~ s/^\d+\.\d+\.\d+\.//;
1014 } elsif ($zone->masklen > 16) {
1015 $prefix =~ s/\.0$//;
1016 $bc =~ s/^\d+\.\d+\.//;
1017 } elsif ($zone->masklen > 8) {
1018 $bc =~ s/^\d+\.//;
1019 $prefix =~ s/\.0\.0$//;
1020 } else {
1021 $prefix =~ s/\.0\.0\.0$//;
1022 }
1023 if ($zone->masklen % 8) {
1024 $bc =~ s/(\.255)+$//;
1025 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
1026 }
1027 if ($fr eq 'f') {
1028 $prefix =~ s/\.+/$sep/g;
1029 } else {
1030 $prefix = join($sep, reverse(split(/\./, $prefix)));
1031 }
1032
1033 } else { # IPv6
1034
1035 if ($fr eq 'f') {
1036
1037 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
1038 # a funky subnet that had host bits set.
1039 my $bc = $zone->broadcast->addr;
1040 if (($zone->masklen % 16) != 0) {
1041 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
1042 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
1043 $prefix =~ s/:0$//;
1044 $bc =~ s/:ffff$//;
1045 }
1046 # Strip the leading 16-bit chunks off the front of the broadcast IP
1047 $bc =~ s/^([a-f0-9]+:)+//;
1048 # Append the remaining 16-bit chunk to the prefix after "--"
1049 $prefix .= "--$bc";
1050 } else {
1051 # Strip off :0 from the end until we reach the netblock length.
1052 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1053 $prefix =~ s/:0$//;
1054 }
1055 }
1056 # Actually deal with the separator
1057 $prefix =~ s/:/$sep/g;
1058
1059 } else { # $fr eq 'f'
1060
1061 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1062 # a funky subnet that had host bits set.
1063 my $bc = $zone->broadcast->full;
1064 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1065 $bc =~ s/://g;
1066 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1067 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1068 $prefix =~ s/0$//;
1069 $bc =~ s/f$//;
1070 }
1071 # Split and reverse the order of the nibbles in the network/broadcast IPs
1072 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1073 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1074 my @nbits = reverse split //, $prefix;
1075 my @bbits = reverse split //, $bc;
1076 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1077 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1078 # Glue it back together
1079 $prefix = join($sep, @nbits);
1080
1081 } # $fr ne 'f'
1082
1083 } # $zone->{isv6}
1084
1085 # Do the substitution, finally
1086 $string =~ s/ZONE/$prefix/;
1087 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1088 return $string;
1089} # done _ZONE()
1090
1091# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1092# given the .arpa zone name, return the CIDR netblock the zone is for.
1093# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1094# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1095# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1096sub _zone2cidr {
1097 my $zone = shift;
1098
1099 my $cidr;
1100 my $tmpcidr;
1101 my $warnmsg = '';
1102
1103 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1104 # v4 revzone, formal zone name type
1105 my $tmpzone = $zone;
1106 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1107 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name") if $tmpzone !~ /^(?:\d+-)?[\d\.]+$/;
1108
1109 # Snag the octet pieces
1110 my @octs = split /\./, $tmpzone;
1111
1112 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1113 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1114 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1115 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1116 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1117 );
1118
1119 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1120 # Need to take the size of the range to offset the basic octet-based mask length,
1121 # and make sure the first number in the range gets used as the network address for the block
1122 # Alternate form: The second number is actually the real netmask, not the end of the range.
1123 my $masklen = 0;
1124 if ($octs[0] =~ /^((\d+)-(\d+))$/) { # take the range...
1125 if (24 < $3 && $3 < 31) {
1126 # we have a real netmask
1127 $masklen = -$maskmap{$3};
1128 } else {
1129 # we have a range. NB: only real CIDR ranges are supported
1130 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1131 }
1132 $octs[0] = $2; # set the base octet of the range...
1133 }
1134 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1135
1136# arguably we should only allow sub-octet range/mask in-addr.arpa
1137# specifications in the least significant octet, but the code is
1138# simpler if we deal with sub-octet delegations at any level.
1139
1140 # Now we find the "true" mask with the aid of the "base" calculated above
1141 if ($#octs == 0) {
1142 $masklen += 8;
1143 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1144 } elsif ($#octs == 1) {
1145 $masklen += 16;
1146 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1147 } elsif ($#octs == 2) {
1148 $masklen += 24;
1149 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1150 } else {
1151 $masklen += 32;
1152 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1153 }
1154
1155 } elsif ($zone =~ /\.ip6\.arpa$/) {
1156 # v6 revzone, formal zone name type
1157 my $tmpzone = $zone;
1158 $tmpzone =~ s/\.ip6\.arpa\.?//;
1159##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1160 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name") if $tmpzone !~ /^[a-fA-F\d\.]+$/;
1161 my @quads = reverse(split(/\./, $tmpzone));
1162 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1163 my $nc;
1164 foreach (@quads) {
1165 $tmpcidr .= $_;
1166 $tmpcidr .= ":" if ++$nc % 4 == 0;
1167 }
1168 my $nq = 1 if $nc % 4 != 0;
1169 my $mask = $nc * 4; # need to do this here because we probably increment it below
1170 while ($nc++ % 4 != 0) {
1171 $tmpcidr .= "0";
1172 }
1173 $tmpcidr .= ($nq ? '::' : ':')."/$mask";
1174 }
1175
1176 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1177 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1178 unless $cidr = NetAddr::IP->new($tmpcidr);
1179
1180 if ($warnmsg) {
1181 $errstr = $warnmsg;
1182 return ('WARN', $cidr);
1183 }
1184 return ('OK', $cidr);
1185} # done _zone2cidr()
1186
1187# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1188# really have a sane way to handle this type of expansion at the moment
1189# due to the size of the address space.
1190# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1191sub _template4_expand {
1192 my $tmpl = shift;
1193 my $ip = shift;
1194
1195 my @ipparts = split /\./, $ip;
1196 my @iphex;
1197 my @ippad;
1198 for (@ipparts) {
1199 push @iphex, sprintf("%x", $_);
1200 push @ippad, sprintf("%0.3u", $_);
1201 }
1202
1203 # IP substitutions in template records:
1204 #major patterns:
1205 #dashed IP, forward and reverse
1206 #dotted IP, forward and reverse (even if forward is... dumb)
1207 # -> %r for reverse, %i for forward, leading - or . to indicate separator, defaults to -
1208 # %r or %-r => %4d-%3d-%2d-%1d
1209 # %.r => %4d.%3d.%2d.%1d
1210 # %i or %-i => %1d-%2d-%3d-%4d
1211 # %.i => %1d.%2d.%3d.%4d
1212 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1213 $$tmpl =~ s/\%([-.])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1214 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1215 $$tmpl =~ s/\%([-.])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1216
1217 #hex-coded IP
1218 # %h
1219 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1220
1221 #IP as decimal-coded 32-bit value
1222 # %d
1223 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1224 $$tmpl =~ s/\%d/$iptmp/g;
1225
1226 #minor patterns (per-octet)
1227 # %[1234][dh0]
1228 #octet
1229 #hex-coded octet
1230 #0-padded octet
1231 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1232 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1233 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1234} # _template4_expand()
1235
1236
1237##
1238## Initialization and cleanup subs
1239##
1240
1241## DNSDB::loadConfig()
1242# Load the minimum required initial state (DB connect info) from a config file
1243# Load misc other bits while we're at it.
1244# Takes an optional hash that may contain:
1245# - basename and config path to look for
1246# Populates the %config and %def hashes
1247sub loadConfig {
1248 my %args = @_;
1249 $args{configfile} = '' if !$args{configfile};
1250
1251##fixme this is *intended* to load a system-default config template, and allow
1252# overriding on a per-tool or per-web-UI-instance basis with a secondary config
1253# file. The "default" config file can't be deleted in the current form.
1254
1255 my $deferr = ''; # place to put error from default config file in case we can't find either one
1256
1257 my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
1258 $configroot = '' if $args{configfile} =~ m|^/|; # allow passed siteconfig to specify an arbitrary absolute path
1259 $args{configfile} .= ".conf" if $args{configfile} !~ /\.conf$/;
1260 my $defconfig = "$configroot/dnsdb.conf";
1261 my $siteconfig = "$configroot/$args{configfile}";
1262
1263 # System defaults
1264 __cfgload("$defconfig") or $deferr = $errstr;
1265
1266 # Per-site-ish settings.
1267 if ($args{configfile} ne '.conf') {
1268 unless (__cfgload("$siteconfig")) {
1269 $errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
1270 "Error opening site config file $siteconfig";
1271 return;
1272 }
1273 }
1274
1275 # Munge log_failures.
1276 if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
1277 # true/false, on/off, yes/no all valid.
1278 if ($config{log_failures} =~ /^(?:true|false|on|off|yes|no)$/) {
1279 if ($config{log_failures} =~ /(?:true|on|yes)/) {
1280 $config{log_failures} = 1;
1281 } else {
1282 $config{log_failures} = 0;
1283 }
1284 } else {
1285 $errstr = "Bad log_failures setting $config{log_failures}";
1286 $config{log_failures} = 1;
1287 # Bad setting shouldn't be fatal.
1288 # return 2;
1289 }
1290 }
1291
1292 # All good, clear the error and go home.
1293 $errstr = '';
1294 return 1;
1295} # end loadConfig()
1296
1297
1298## DNSDB::__cfgload()
1299# Private sub to parse a config file and load it into %config
1300# Takes a filename
1301sub __cfgload {
1302 $errstr = '';
1303 my $cfgfile = shift;
1304
1305 if (open CFG, "<$cfgfile") {
1306 while (<CFG>) {
1307 chomp;
1308 s/^\s*//;
1309 next if /^#/;
1310 next if /^$/;
1311# hmm. more complex bits in this file might require [heading] headers, maybe?
1312# $mode = $1 if /^\[(a-z)+]/;
1313 # DB connect info
1314 $config{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1315 $config{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1316 $config{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1317 $config{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1318 # SOA defaults
1319 $def{contact} = $1 if /^contact\s*=\s*([a-z0-9_.-]+)/i;
1320 $def{prins} = $1 if /^prins\s*=\s*([a-z0-9_.-]+)/i;
1321 $def{soattl} = $1 if /^soattl\s*=\s*(\d+)/i;
1322 $def{refresh} = $1 if /^refresh\s*=\s*(\d+)/i;
1323 $def{retry} = $1 if /^retry\s*=\s*(\d+)/i;
1324 $def{expire} = $1 if /^expire\s*=\s*(\d+)/i;
1325 $def{minttl} = $1 if /^minttl\s*=\s*(\d+)/i;
1326 $def{ttl} = $1 if /^ttl\s*=\s*(\d+)/i;
1327 # Mail settings
1328 $config{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1329 $config{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1330 $config{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1331 $config{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1332 $config{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1333 $config{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1334 # session - note this is fed directly to CGI::Session
1335 $config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1336 $config{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1337 # misc
1338 $config{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1339 $config{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1340 $config{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1341 # RPC options
1342 $config{rpcmode} = $1 if /^rpc_mode\s*=\s*(socket|HTTP|XMLRPC)\s*$/i;
1343 $config{maxfcgi} = $1 if /^max_fcgi_requests\s*=\s*(\d+)\s*$/i;
1344 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1345 my @ips = split /[,\s]+/, $tmp;
1346 my $rpcsys = shift @ips;
1347 push @{$config{rpcacl}{$rpcsys}}, @ips;
1348 }
1349 }
1350 close CFG;
1351 } else {
1352 $errstr = $!;
1353 return;
1354 }
1355 return 1;
1356} # end __cfgload()
1357
1358
1359## DNSDB::connectDB()
1360# Creates connection to DNS database.
1361# Requires the database name, username, and password.
1362# Returns a handle to the db or undef on failure.
1363# Set up for a PostgreSQL db; could be any transactional DBMS with the
1364# right changes.
1365# Called by new(); not intended to be called publicly.
1366sub connectDB {
1367 $errstr = '';
1368 my $dbname = shift;
1369 my $user = shift;
1370 my $pass = shift;
1371 my $dbh;
1372 my $DSN = "DBI:Pg:dbname=$dbname";
1373
1374 my $host = shift;
1375 $DSN .= ";host=$host" if $host;
1376
1377# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1378# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1379 $dbh = DBI->connect($DSN, $user, $pass, {
1380 AutoCommit => 1,
1381 PrintError => 0
1382 });
1383 if (!$dbh) {
1384 $errstr = $DBI::errstr;
1385 return;
1386 }
1387#) if(!$dbh);
1388
1389 local $dbh->{RaiseError} = 1;
1390
1391 eval {
1392##fixme: initialize the DB if we can't find the table (since, by definition, there's
1393# nothing there if we can't select from it...)
1394 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1395 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1396# return (undef,$DBI::errstr) if $dbh->err;
1397
1398#if ($tblcount == 0) {
1399# # create tables one at a time, checking for each.
1400# return (undef, "check table misc missing");
1401#}
1402
1403# Return here if we can't select.
1404# This should retrieve the dbversion key.
1405 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1406 $sth->execute();
1407# return (undef,$DBI::errstr) if ($sth->err);
1408
1409##fixme: do stuff to the DB on version mismatch
1410# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1411# DB should be downward-compatible; column defaults should give sane (if possibly
1412# useless-and-needs-help) values in columns an older software stack doesn't know about.
1413
1414# See if the select returned anything (or null data). This should
1415# succeed if the select executed, but...
1416 $sth->fetchrow();
1417# return (undef,$DBI::errstr) if ($sth->err);
1418
1419 $sth->finish;
1420
1421 }; # wrapped DB checks
1422 if ($@) {
1423 $errstr = $@;
1424 return;
1425 }
1426
1427# If we get here, we should be OK.
1428 return $dbh;
1429} # end connectDB
1430
1431
1432## DNSDB::finish()
1433# Cleans up after database handles and so on.
1434# Requires a database handle
1435sub finish {
1436 my $self = shift;
1437 $self->{dbh}->disconnect;
1438} # end finish
1439
1440
1441## DNSDB::initGlobals()
1442# Initialize global variables
1443# NB: this does NOT include web-specific session variables!
1444sub initGlobals {
1445 my $self = shift;
1446 my $dbh = $self->{dbh};
1447
1448# load record types from database
1449 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1450 $sth->execute;
1451 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1452 $typemap{$recval} = $recname;
1453 $reverse_typemap{$recname} = $recval;
1454 # now we fill the record validation function hash
1455 if ($stdflag < 5) {
1456 my $fn = "_validate_$recval";
1457 $validators{$recval} = \&$fn;
1458 } else {
1459 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1460 $validators{$recval} = eval $fn;
1461 }
1462 }
1463} # end initGlobals
1464
1465
1466## DNSDB::initRPC()
1467# Takes a remote username and remote fullname.
1468# Sets up the RPC logging-pseudouser if needed.
1469# Sets the %userdata hash for logging.
1470# Returns undef on failure
1471sub initRPC {
1472 my $self = shift;
1473 my $dbh = $self->{dbh};
1474 my %args = @_;
1475
1476 return if !$args{username};
1477 return if !$args{fullname};
1478
1479 $args{username} = "$args{username}/$args{rpcsys}";
1480
1481 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1482 " FROM users WHERE username=?", undef, ($args{username}) );
1483 if (!$tmpuser) {
1484 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1485 ($args{username}, $args{fullname}) );
1486 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1487 " FROM users WHERE username=?", undef, ($args{username}) );
1488 }
1489 $tmpuser->{lastname} = '' if !$tmpuser->{lastname};
1490 $self->{loguserid} = $tmpuser->{userid};
1491 $self->{logusername} = $tmpuser->{username};
1492 $self->{logfullname} = "$tmpuser->{firstname} $tmpuser->{lastname} ($args{rpcsys})";
1493 return 1 if $tmpuser;
1494} # end initRPC()
1495
1496
1497## DNSDB::login()
1498# Takes a database handle, username and password
1499# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1500# password matches the one on file, and account is not disabled
1501# Returns undef otherwise
1502sub login {
1503 my $self = shift;
1504 my $dbh = $self->{dbh};
1505 my $user = shift;
1506 my $pass = shift;
1507
1508 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1509 " FROM users WHERE username=?",
1510 undef, ($user) );
1511 return if !$userinfo;
1512 return if !$userinfo->{status};
1513
1514 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1515 # native passwords (crypt-md5)
1516 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1517 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1518 # VegaDNS import (hex-coded MD5)
1519 return if $userinfo->{password} ne md5_hex($pass);
1520 } else {
1521 # plaintext (convenient now and then)
1522 return if $userinfo->{password} ne $pass;
1523 }
1524
1525 return $userinfo;
1526} # end login()
1527
1528
1529## DNSDB::initActionLog()
1530# Set up action logging. Takes a database handle and user ID
1531# Sets some internal globals and Does The Right Thing to set up a logging channel.
1532# This sets up _log() to spew out log entries to the defined channel without worrying
1533# about having to open a file or a syslog channel
1534##fixme Need to call _initActionLog_blah() for various logging channels, configured
1535# via dnsdb.conf, in $config{log_channel} or something
1536# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1537sub initActionLog {
1538 my $self = shift;
1539 my $dbh = $self->{dbh};
1540 my $uid = shift;
1541
1542 return if !$uid;
1543
1544 # snag user info for logging. there's got to be a way to not have to pass this back
1545 # and forth from a caller, but web usage means no persistence we can rely on from
1546 # the server side.
1547 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1548 " FROM users WHERE user_id=?", undef, ($uid));
1549##fixme: errors are unpossible!
1550
1551 $self->{logusername} = $username;
1552 $self->{loguserid} = $uid;
1553 $self->{logfullname} = $fullname;
1554
1555 # convert to real check once we have other logging channels
1556 # if ($config{log_channel} eq 'sql') {
1557 # Open Log, Sez Me!
1558 # }
1559
1560} # end initActionLog
1561
1562
1563## DNSDB::getPermissions()
1564# Get permissions from DB
1565# Requires DB handle, group or user flag, ID, and hashref.
1566sub getPermissions {
1567 my $self = shift;
1568 my $dbh = $self->{dbh};
1569
1570 my $type = shift;
1571 my $id = shift;
1572 my $hash = shift;
1573
1574 my $sql = qq(
1575 SELECT
1576 p.admin,p.self_edit,
1577 p.group_create,p.group_edit,p.group_delete,
1578 p.user_create,p.user_edit,p.user_delete,
1579 p.domain_create,p.domain_edit,p.domain_delete,
1580 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1581 p.location_create,p.location_edit,p.location_delete,p.location_view
1582 FROM permissions p
1583 );
1584 if ($type eq 'group') {
1585 $sql .= qq(
1586 JOIN groups g ON g.permission_id=p.permission_id
1587 WHERE g.group_id=?
1588 );
1589 } else {
1590 $sql .= qq(
1591 JOIN users u ON u.permission_id=p.permission_id
1592 WHERE u.user_id=?
1593 );
1594 }
1595
1596 my $sth = $dbh->prepare($sql);
1597
1598##fixme? we don't trap other plain SELECT errors
1599 $sth->execute($id);
1600
1601# my $permref = $sth->fetchrow_hashref;
1602# return $permref;
1603# $hash = $permref;
1604# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1605 ($hash->{admin},$hash->{self_edit},
1606 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1607 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1608 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1609 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1610 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1611 ) = $sth->fetchrow_array;
1612
1613} # end getPermissions()
1614
1615
1616## DNSDB::changePermissions()
1617# Update an ACL entry
1618# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1619sub changePermissions {
1620 my $self = shift;
1621 my $dbh = $self->{dbh};
1622 my $type = shift;
1623 my $id = shift;
1624 my $newperms = shift;
1625 my $inherit = shift || 0;
1626
1627 my $resultmsg = '';
1628
1629 # see if we're switching from inherited to custom. for bonus points,
1630 # snag the permid and parent permid anyway, since we'll need the permid
1631 # to set/alter custom perms, and both if we're switching from custom to
1632 # inherited.
1633 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1634 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1635 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1636 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1637 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1638 $sth->execute($id);
1639
1640 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1641
1642# hack phtoui
1643# group id 1 is "special" in that it's it's own parent (err... possibly.)
1644# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1645 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1646
1647 local $dbh->{AutoCommit} = 0;
1648 local $dbh->{RaiseError} = 1;
1649
1650 # Wrap all the SQL in a transaction
1651 eval {
1652 if ($inherit) {
1653
1654 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1655 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1656 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1657
1658 } else {
1659
1660 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1661##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1662# ... if'n'when we have groups with fully inherited permissions.
1663 # SQL is coo
1664 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1665 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1666 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1667 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1668 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1669 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1670 }
1671
1672 # and now set the permissions we were passed
1673 foreach (@permtypes) {
1674 if (defined ($newperms->{$_})) {
1675 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1676 }
1677 }
1678
1679 } # (inherited->)? custom
1680
1681 if ($type eq 'user') {
1682 $resultmsg = "Updated permissions for user $name";
1683 } else {
1684 $resultmsg = "Updated default permissions for group $name";
1685 }
1686 $self->_log(group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg);
1687 $dbh->commit;
1688 }; # end eval
1689 if ($@) {
1690 my $msg = $@;
1691 eval { $dbh->rollback; };
1692 return ('FAIL',"Error changing permissions: $msg");
1693 }
1694
1695 return ('OK',$resultmsg);
1696} # end changePermissions()
1697
1698
1699## DNSDB::comparePermissions()
1700# Compare two permission hashes
1701# Returns '>', '<', '=', '!'
1702sub comparePermissions {
1703 my $p1 = shift;
1704 my $p2 = shift;
1705
1706 my $retval = '='; # assume equality until proven otherwise
1707
1708 no warnings "uninitialized";
1709
1710 foreach (@permtypes) {
1711 next if $p1->{$_} == $p2->{$_}; # equal is good
1712 if ($p1->{$_} && !$p2->{$_}) {
1713 if ($retval eq '<') { # if we've already found an unequal pair where
1714 $retval = '!'; # $p2 has more access, and we now find a pair
1715 last; # where $p1 has more access, the overall access
1716 } # is neither greater or lesser, it's unequal.
1717 $retval = '>';
1718 }
1719 if (!$p1->{$_} && $p2->{$_}) {
1720 if ($retval eq '>') { # if we've already found an unequal pair where
1721 $retval = '!'; # $p1 has more access, and we now find a pair
1722 last; # where $p2 has more access, the overall access
1723 } # is neither greater or lesser, it's unequal.
1724 $retval = '<';
1725 }
1726 }
1727 return $retval;
1728} # end comparePermissions()
1729
1730
1731## DNSDB::changeGroup()
1732# Change group ID of an entity
1733# Takes a database handle, entity type, entity ID, and new group ID
1734sub changeGroup {
1735 my $self = shift;
1736 my $dbh = $self->{dbh};
1737 my $type = shift;
1738 my $id = shift;
1739 my $newgrp = shift;
1740
1741##fixme: fail on not enough args
1742 #return ('FAIL', "Missing
1743
1744 return ('FAIL', "Can't change the group of a $type")
1745 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1746
1747 # Collect some names for logging and messages
1748 my $entname;
1749 if ($type eq 'domain') {
1750 $entname = $self->domainName($id);
1751 } elsif ($type eq 'revzone') {
1752 $entname = $self->revName($id);
1753 } elsif ($type eq 'user') {
1754 $entname = $self->userFullName($id, '%u');
1755 } elsif ($type eq 'group') {
1756 $entname = $self->groupName($id);
1757 }
1758
1759 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1760 undef, ($id));
1761 my $oldgname = $self->groupName($oldgid);
1762 my $newgname = $self->groupName($newgrp);
1763
1764 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1765
1766 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1767
1768 # Allow transactions, and raise an exception on errors so we can catch it later.
1769 # Use local to make sure these get "reset" properly on exiting this block
1770 local $dbh->{AutoCommit} = 0;
1771 local $dbh->{RaiseError} = 1;
1772
1773 eval {
1774 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1775 # Log the change in both the old and new groups
1776 $self->_log(group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname");
1777 $self->_log(group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname");
1778 $dbh->commit;
1779 };
1780 if ($@) {
1781 my $msg = $@;
1782 eval { $dbh->rollback; };
1783 if ($config{log_failures}) {
1784 $self->_log(group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg");
1785 $dbh->commit; # since we enabled transactions earlier
1786 }
1787 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1788 }
1789
1790 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1791} # end changeGroup()
1792
1793
1794##
1795## Processing subs
1796##
1797
1798## DNSDB::addDomain()
1799# Add a domain
1800# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1801# and user info hash (for logging).
1802# Returns a status code and message
1803sub addDomain {
1804 $errstr = '';
1805 my $self = shift;
1806 my $dbh = $self->{dbh};
1807 my $domain = shift;
1808 return ('FAIL',"Domain must not be blank\n") if !$domain;
1809 my $group = shift;
1810 return ('FAIL',"Group must be specified\n") if !defined($group);
1811 my $state = shift;
1812 return ('FAIL',"Domain status must be specified\n") if !defined($state);
1813
1814 $state = 1 if $state =~ /^active$/;
1815 $state = 1 if $state =~ /^on$/;
1816 $state = 0 if $state =~ /^inactive$/;
1817 $state = 0 if $state =~ /^off$/;
1818
1819 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1820
1821 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1822
1823 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
1824 my $dom_id;
1825
1826# quick check to start to see if we've already got one
1827 $sth->execute($domain);
1828 ($dom_id) = $sth->fetchrow_array;
1829
1830 return ('FAIL', "Domain already exists") if $dom_id;
1831
1832 # Allow transactions, and raise an exception on errors so we can catch it later.
1833 # Use local to make sure these get "reset" properly on exiting this block
1834 local $dbh->{AutoCommit} = 0;
1835 local $dbh->{RaiseError} = 1;
1836
1837 # Wrap all the SQL in a transaction
1838 eval {
1839 # insert the domain...
1840 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
1841
1842 # get the ID...
1843 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1844 undef, ($domain));
1845
1846 $self->_log(domain_id => $dom_id, group_id => $group,
1847 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain");
1848
1849 # ... and now we construct the standard records from the default set. NB: group should be variable.
1850 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1851 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
1852 " VALUES ($dom_id,?,?,?,?,?,?,?)");
1853 $sth->execute($group);
1854 while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
1855 $host =~ s/DOMAIN/$domain/g;
1856 $val =~ s/DOMAIN/$domain/g;
1857 $sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
1858 if ($typemap{$type} eq 'SOA') {
1859 my @tmp1 = split /:/, $host;
1860 my @tmp2 = split /:/, $val;
1861 $self->_log(domain_id => $dom_id, group_id => $group,
1862 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1863 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
1864 } else {
1865 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1866 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1867 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1868 $self->_log(domain_id => $dom_id, group_id => $group,
1869 entry => $logentry." $val', TTL $ttl");
1870 }
1871 }
1872
1873 # once we get here, we should have suceeded.
1874 $dbh->commit;
1875 }; # end eval
1876
1877 if ($@) {
1878 my $msg = $@;
1879 eval { $dbh->rollback; };
1880 $self->_log(group_id => $group, entry => "Failed adding domain $domain ($msg)")
1881 if $config{log_failures};
1882 $dbh->commit; # since we enabled transactions earlier
1883 return ('FAIL',$msg);
1884 } else {
1885 return ('OK',$dom_id);
1886 }
1887} # end addDomain
1888
1889
1890## DNSDB::delZone()
1891# Delete a forward or reverse zone.
1892# Takes a database handle, zone ID, and forward/reverse flag.
1893# for now, just delete the records, then the domain.
1894# later we may want to archive it in some way instead (status code 2, for example?)
1895sub delZone {
1896 my $self = shift;
1897 my $dbh = $self->{dbh};
1898 my $zoneid = shift;
1899 my $revrec = shift;
1900
1901 # Allow transactions, and raise an exception on errors so we can catch it later.
1902 # Use local to make sure these get "reset" properly on exiting this block
1903 local $dbh->{AutoCommit} = 0;
1904 local $dbh->{RaiseError} = 1;
1905
1906 my $msg = '';
1907 my $failmsg = '';
1908 my $zone = ($revrec eq 'n' ? $self->domainName($zoneid) : $self->revName($zoneid));
1909
1910 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
1911
1912 # Set this up here since we may use if if $config{log_failures} is enabled
1913 my %loghash;
1914 $loghash{domain_id} = $zoneid if $revrec eq 'n';
1915 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
1916 $loghash{group_id} = $self->parentID(
1917 id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
1918
1919 # Wrap all the SQL in a transaction
1920 eval {
1921 # Disentangle custom record types before removing the
1922 # ones that are only in the zone to be deleted
1923 if ($revrec eq 'n') {
1924 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
1925 $failmsg = "Failure converting multizone types to single-zone";
1926 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
1927 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
1928 $sth->execute(65282, $zoneid, 65283);
1929 $sth->execute(65282, $zoneid, 65284);
1930 $failmsg = "Failure removing domain records";
1931 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
1932 $failmsg = "Failure removing domain";
1933 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
1934 } else {
1935 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
1936 $failmsg = "Failure converting multizone types to single-zone";
1937 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
1938 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
1939# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
1940# $sth->execute(65286?, $zoneid, 65283);
1941# $sth->execute(65286?, $zoneid, 65284);
1942 $failmsg = "Failure removing reverse records";
1943 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
1944 $failmsg = "Failure removing reverse zone";
1945 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
1946 }
1947
1948 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
1949 $loghash{entry} = $msg;
1950 $self->_log(%loghash);
1951
1952 # once we get here, we should have suceeded.
1953 $dbh->commit;
1954 }; # end eval
1955
1956 if ($@) {
1957 $msg = $@;
1958 eval { $dbh->rollback; };
1959 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
1960 if ($config{log_failures}) {
1961 $self->_log(%loghash);
1962 $dbh->commit; # since we enabled transactions earlier
1963 }
1964 return ('FAIL', $loghash{entry});
1965 } else {
1966 return ('OK', $msg);
1967 }
1968
1969} # end delZone()
1970
1971
1972## DNSDB::domainName()
1973# Return the domain name based on a domain ID
1974# Takes a database handle and the domain ID
1975# Returns the domain name or undef on failure
1976sub domainName {
1977 $errstr = '';
1978 my $self = shift;
1979 my $dbh = $self->{dbh};
1980 my $domid = shift;
1981 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
1982 $errstr = $DBI::errstr if !$domname;
1983 return $domname if $domname;
1984} # end domainName()
1985
1986
1987## DNSDB::revName()
1988# Return the reverse zone name based on an rDNS ID
1989# Takes a database handle and the rDNS ID
1990# Returns the reverse zone name or undef on failure
1991sub revName {
1992 $errstr = '';
1993 my $self = shift;
1994 my $dbh = $self->{dbh};
1995 my $revid = shift;
1996 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
1997 $errstr = $DBI::errstr if !$revname;
1998 return $revname if $revname;
1999} # end revName()
2000
2001
2002## DNSDB::domainID()
2003# Takes a database handle and domain name
2004# Returns the domain ID number
2005sub domainID {
2006 $errstr = '';
2007 my $self = shift;
2008 my $dbh = $self->{dbh};
2009 my $domain = shift;
2010 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
2011 undef, ($domain) );
2012 if (!$domid) {
2013 if ($dbh->err) {
2014 $errstr = $DBI::errstr;
2015 } else {
2016 $errstr = "Domain $domain not present";
2017 }
2018 }
2019 return $domid if $domid;
2020} # end domainID()
2021
2022
2023## DNSDB::revID()
2024# Takes a database handle and reverse zone name
2025# Returns the rDNS ID number
2026sub revID {
2027 $errstr = '';
2028 my $self = shift;
2029 my $dbh = $self->{dbh};
2030 my $revzone = shift;
2031 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
2032 if (!$revid) {
2033 if ($dbh->err) {
2034 $errstr = $DBI::errstr;
2035 } else {
2036 $errstr = "Reverse zone $revzone not present";
2037 }
2038 }
2039 return $revid if $revid;
2040} # end revID()
2041
2042
2043## DNSDB::addRDNS
2044# Adds a reverse DNS zone
2045# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
2046# and boolean(ish) state (active/inactive)
2047# Returns a status code and message
2048sub addRDNS {
2049 my $self = shift;
2050 my $dbh = $self->{dbh};
2051 my $zone = NetAddr::IP->new(shift);
2052
2053 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
2054 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
2055 my $group = shift;
2056 my $state = shift;
2057 my $defloc = shift || '';
2058
2059 $state = 1 if $state =~ /^active$/;
2060 $state = 1 if $state =~ /^on$/;
2061 $state = 0 if $state =~ /^inactive$/;
2062 $state = 0 if $state =~ /^off$/;
2063
2064 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
2065
2066# quick check to start to see if we've already got one
2067 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
2068
2069 return ('FAIL', "Zone already exists") if $rdns_id;
2070
2071 # Allow transactions, and raise an exception on errors so we can catch it later.
2072 # Use local to make sure these get "reset" properly on exiting this block
2073 local $dbh->{AutoCommit} = 0;
2074 local $dbh->{RaiseError} = 1;
2075
2076 my $warnstr = '';
2077 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2078 # wrong, we should have a value to override this anyway.
2079
2080 # Wrap all the SQL in a transaction
2081 eval {
2082 # insert the zone...
2083 $dbh->do("INSERT INTO revzones (revnet,group_id,status,default_location) VALUES (?,?,?,?)", undef,
2084 ($zone, $group, $state, $defloc) );
2085
2086 # get the ID...
2087 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2088
2089 $self->_log(rdns_id => $rdns_id, group_id => $group,
2090 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone");
2091
2092 # ... and now we construct the standard records from the default set. NB: group should be variable.
2093 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2094 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl,location)".
2095 " VALUES ($rdns_id,?,?,?,?,?,?)");
2096 $sth->execute($group);
2097 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2098 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2099 if ($zone->{isv6}) {
2100 next if ($type == 65280 || $type == 65283);
2101 } else {
2102 next if ($type == 65281 || $type == 65284);
2103 }
2104
2105 $host =~ s/ADMINDOMAIN/$config{domain}/g;
2106
2107 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2108 # On failure, tack a note on to a warning string and continue without adding this record.
2109 # While we're at it, we substitute $zone for ZONE in the value.
2110 if ($val eq 'ZONE') {
2111 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2112 next if $revpatt && ($type == 65282 || $type == 65283);
2113##fixme? do we care if we have multiple whole-zone templates?
2114 $val = $zone->network;
2115 } elsif ($val =~ /ZONE/) {
2116 my $tmpval = $val;
2117 $tmpval =~ s/ZONE//;
2118 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2119 # as either v4 or v6. May make this an off-by-default config flag
2120 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2121 if ($type == 12 || $type == 65282) {
2122 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2123 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2124 }
2125 my $addr;
2126 if ($self->_ipparent('n', 'y', \$tmpval, $rdns_id, \$addr)) {
2127 $val = $addr->addr;
2128 } else {
2129 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2130 next;
2131 }
2132 }
2133
2134 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2135 # NS records get this substitution on the value instead.
2136 $host = _ZONE($zone, $host) if $type != 2;
2137
2138 # Fill in the forward domain ID if we can find it, otherwise:
2139 # Coerce type down to PTR or PTR template if we can't
2140 my $domid = 0;
2141 if ($type >= 65280) {
2142 if (!($domid = $self->_hostparent($host))) {
2143 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2144 $type = $reverse_typemap{PTR};
2145 $domid = 0; # just to be explicit.
2146 }
2147 }
2148
2149 $sth_in->execute($domid,$host,$type,$val,$ttl,$defloc);
2150
2151 if ($typemap{$type} eq 'SOA') {
2152 my @tmp1 = split /:/, $host;
2153 my @tmp2 = split /:/, $val;
2154 $self->_log(rdns_id => $rdns_id, group_id => $group,
2155 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2156 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
2157 $defttl = $tmp2[3];
2158 } else {
2159 my $logentry = "[new $zone] Added record '$host $typemap{$type} $val', TTL $ttl";
2160 $logentry .= ", default location ".$self->getLoc($defloc)->{description} if $defloc;
2161 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group, entry => $logentry);
2162 }
2163 }
2164
2165 # Generate record based on provided pattern.
2166 if ($revpatt) {
2167 my $host;
2168 my $type = ($zone->{isv6} ? 65284 : 65283);
2169 my $val = $zone->network;
2170
2171 # Substitute $zone for ZONE in the hostname.
2172 $host = _ZONE($zone, $revpatt);
2173
2174 my $domid = 0;
2175 if (!($domid = $self->_hostparent($host))) {
2176 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2177 $type = 65282;
2178 $domid = 0; # just to be explicit.
2179 }
2180
2181 $sth_in->execute($domid,$host,$type,$val,$defttl,$defloc);
2182 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2183 $self->_log(rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2184 entry => $logentry." $val', TTL $defttl from pattern");
2185 }
2186
2187 # If there are warnings (presumably about default records skipped for cause) log them
2188 $self->_log(rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr")
2189 if $warnstr;
2190
2191 # once we get here, we should have suceeded.
2192 $dbh->commit;
2193 }; # end eval
2194
2195 if ($@) {
2196 my $msg = $@;
2197 eval { $dbh->rollback; };
2198 $self->_log(group_id => $group, entry => "Failed adding reverse zone $zone ($msg)")
2199 if $config{log_failures};
2200 $dbh->commit; # since we enabled transactions earlier
2201 return ('FAIL',$msg);
2202 } else {
2203 my $retcode = 'OK';
2204 if ($warnstr) {
2205 $resultstr = $warnstr;
2206 $retcode = 'WARN';
2207 }
2208 return ($retcode, $rdns_id);
2209 }
2210
2211} # end addRDNS()
2212
2213
2214## DNSDB::getZoneCount
2215# Get count of zones in group or groups
2216# Takes a database handle and hash containing:
2217# - the "current" group
2218# - an array of "acceptable" groups
2219# - a flag for forward/reverse zones
2220# - Optionally accept a "starts with" and/or "contains" filter argument
2221# Returns an integer count of the resulting zone list.
2222sub getZoneCount {
2223 my $self = shift;
2224 my $dbh = $self->{dbh};
2225
2226 my %args = @_;
2227
2228 # Fail on bad curgroup argument. There's no sane fallback on this one.
2229 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2230 $errstr = "Bad or missing curgroup argument";
2231 return;
2232 }
2233 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2234 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2235 $errstr = "Bad childlist argument";
2236 return;
2237 }
2238
2239 my @filterargs;
2240 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2241 push @filterargs, "^$args{startwith}" if $args{startwith};
2242 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2243 push @filterargs, $args{filter} if $args{filter};
2244
2245 my $sql;
2246 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2247 if ($args{revrec} eq 'n') {
2248 $sql = "SELECT count(*) FROM domains".
2249 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2250 ($args{startwith} ? " AND domain ~* ?" : '').
2251 ($args{filter} ? " AND domain ~* ?" : '');
2252 } else {
2253 $sql = "SELECT count(*) FROM revzones".
2254 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2255 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2256 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2257 }
2258 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2259 return $count;
2260} # end getZoneCount()
2261
2262
2263## DNSDB::getZoneList()
2264# Get a list of zones in the specified group(s)
2265# Takes the same arguments as getZoneCount() above
2266# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2267sub getZoneList {
2268 my $self = shift;
2269 my $dbh = $self->{dbh};
2270
2271 my %args = @_;
2272
2273 my @zonelist;
2274
2275 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2276 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2277
2278 # Fail on bad curgroup argument. There's no sane fallback on this one.
2279 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2280 $errstr = "Bad or missing curgroup argument";
2281 return;
2282 }
2283 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2284 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2285 $errstr = "Bad childlist argument";
2286 return;
2287 }
2288
2289 my @filterargs;
2290 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2291 push @filterargs, "^$args{startwith}" if $args{startwith};
2292 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2293 push @filterargs, $args{filter} if $args{filter};
2294
2295 my $sql;
2296 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2297 if ($args{revrec} eq 'n') {
2298 $args{sortby} = 'domain' if !$args{sortby} || !grep /^$args{sortby}$/, ('domain','group','status');
2299 $sql = "SELECT domain_id,domain,status,groups.group_name AS group FROM domains".
2300 " INNER JOIN groups ON domains.group_id=groups.group_id".
2301 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2302 ($args{startwith} ? " AND domain ~* ?" : '').
2303 ($args{filter} ? " AND domain ~* ?" : '');
2304 } else {
2305##fixme: arguably startwith here is irrelevant. depends on the UI though.
2306 $args{sortby} = 'revnet' if !$args{sortby} || !grep /^$args{sortby}$/, ('revnet','group','status');
2307 $sql = "SELECT rdns_id,revnet,status,groups.group_name AS group FROM revzones".
2308 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2309 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2310 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2311 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2312 }
2313 # A common tail.
2314 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2315 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage}".
2316 " OFFSET ".$args{offset}*$config{perpage});
2317 my $sth = $dbh->prepare($sql);
2318 $sth->execute(@filterargs);
2319 my $rownum = 0;
2320
2321 while (my @data = $sth->fetchrow_array) {
2322 my %row;
2323 $row{domain_id} = $data[0];
2324 $row{domain} = $data[1];
2325 $row{status} = $data[2];
2326 $row{group} = $data[3];
2327 push @zonelist, \%row;
2328 }
2329
2330 return \@zonelist;
2331} # end getZoneList()
2332
2333
2334## DNSDB::getZoneLocation()
2335# Retrieve the default location for a zone.
2336# Takes a database handle, forward/reverse flag, and zone ID
2337sub getZoneLocation {
2338 my $self = shift;
2339 my $dbh = $self->{dbh};
2340 my $revrec = shift;
2341 my $zoneid = shift;
2342
2343 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2344 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2345 undef, ($zoneid));
2346 return $loc;
2347} # end getZoneLocation()
2348
2349
2350## DNSDB::addGroup()
2351# Add a group
2352# Takes a database handle, group name, parent group, hashref for permissions,
2353# and optional template-vs-cloneme flag for the default records
2354# Returns a status code and message
2355sub addGroup {
2356 $errstr = '';
2357 my $self = shift;
2358 my $dbh = $self->{dbh};
2359 my $groupname = shift;
2360 my $pargroup = shift;
2361 my $permissions = shift;
2362
2363 # 0 indicates "custom", hardcoded.
2364 # Any other value clones that group's default records, if it exists.
2365 my $inherit = shift || 0;
2366##fixme: need a flag to indicate clone records or <?> ?
2367
2368 # Allow transactions, and raise an exception on errors so we can catch it later.
2369 # Use local to make sure these get "reset" properly on exiting this block
2370 local $dbh->{AutoCommit} = 0;
2371 local $dbh->{RaiseError} = 1;
2372
2373 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2374
2375 return ('FAIL', "Group already exists") if $group_id;
2376
2377 # Wrap all the SQL in a transaction
2378 eval {
2379 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2380
2381 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2382
2383 # We work through the whole set of permissions instead of specifying them so
2384 # that when we add a new permission, we don't have to change the code anywhere
2385 # that doesn't explicitly deal with that specific permission.
2386 my @permvals;
2387 foreach (@permtypes) {
2388 if (!defined ($permissions->{$_})) {
2389 push @permvals, 0;
2390 } else {
2391 push @permvals, $permissions->{$_};
2392 }
2393 }
2394 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2395 undef, ($groupid, @permvals) );
2396 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2397 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2398
2399 # Default records
2400 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2401 "VALUES ($groupid,?,?,?,?,?,?,?)");
2402 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2403 "VALUES ($groupid,?,?,?,?)");
2404 if ($inherit) {
2405 # Duplicate records from parent. Actually relying on inherited records feels
2406 # very fragile, and it would be problematic to roll over at a later time.
2407 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2408 $sth2->execute($pargroup);
2409 while (my @clonedata = $sth2->fetchrow_array) {
2410 $sthf->execute(@clonedata);
2411 }
2412 # And now the reverse records
2413 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2414 $sth2->execute($pargroup);
2415 while (my @clonedata = $sth2->fetchrow_array) {
2416 $sthr->execute(@clonedata);
2417 }
2418 } else {
2419##fixme: Hardcoding is Bad, mmmmkaaaay?
2420 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2421 # could load from a config file, but somewhere along the line we need hardcoded bits.
2422 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2423 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2424 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2425 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2426 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2427 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2428 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2429 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2430 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2431 }
2432
2433 $self->_log(group_id => $pargroup, entry => "Added group $groupname");
2434
2435 # once we get here, we should have suceeded.
2436 $dbh->commit;
2437 }; # end eval
2438
2439 if ($@) {
2440 my $msg = $@;
2441 eval { $dbh->rollback; };
2442 if ($config{log_failures}) {
2443 $self->_log(group_id => $pargroup, entry => "Failed to add group $groupname: $msg");
2444 $dbh->commit;
2445 }
2446 return ('FAIL',$msg);
2447 }
2448
2449 return ('OK','OK');
2450} # end addGroup()
2451
2452
2453## DNSDB::delGroup()
2454# Delete a group.
2455# Takes a group ID
2456# Returns a status code and message
2457sub delGroup {
2458 my $self = shift;
2459 my $dbh = $self->{dbh};
2460 my $groupid = shift;
2461
2462 # Allow transactions, and raise an exception on errors so we can catch it later.
2463 # Use local to make sure these get "reset" properly on exiting this block
2464 local $dbh->{AutoCommit} = 0;
2465 local $dbh->{RaiseError} = 1;
2466
2467##fixme: locate "knowable" error conditions and deal with them before the eval
2468# ... or inside, whatever.
2469# -> domains still exist in group
2470# -> ...
2471 my $failmsg = '';
2472 my $resultmsg = '';
2473
2474 # collect some pieces for logging and error messages
2475 my $groupname = $self->groupName($groupid);
2476 my $parid = $self->parentID(id => $groupid, type => 'group');
2477
2478 # Wrap all the SQL in a transaction
2479 eval {
2480 # Check for Things in the group
2481 $failmsg = "Can't remove group $groupname";
2482 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2483 die "$grpcnt groups still in group\n" if $grpcnt;
2484 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2485 die "$domcnt domains still in group\n" if $domcnt;
2486 my ($revcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($groupid));
2487 die "$revcnt reverse zones still in group\n" if $revcnt;
2488 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2489 die "$usercnt users still in group\n" if $usercnt;
2490
2491 $failmsg = "Failed to delete default records for $groupname";
2492 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2493 $failmsg = "Failed to delete default reverse records for $groupname";
2494 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2495 $failmsg = "Failed to remove group $groupname";
2496 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2497
2498 $self->_log(group_id => $parid, entry => "Deleted group $groupname");
2499 $resultmsg = "Deleted group $groupname";
2500
2501 # once we get here, we should have suceeded.
2502 $dbh->commit;
2503 }; # end eval
2504
2505 if ($@) {
2506 my $msg = $@;
2507 eval { $dbh->rollback; };
2508 if ($config{log_failures}) {
2509 $self->_log(group_id => $parid, entry => "$failmsg: $msg");
2510 $dbh->commit; # since we enabled transactions earlier
2511 }
2512 return ('FAIL',"$failmsg: $msg");
2513 }
2514
2515 return ('OK',$resultmsg);
2516} # end delGroup()
2517
2518
2519## DNSDB::getChildren()
2520# Get a list of all groups whose parent^n is group <n>
2521# Takes a database handle, group ID, reference to an array to put the group IDs in,
2522# and an optional flag to return only immediate children or all children-of-children
2523# default to returning all children
2524# Calls itself
2525sub getChildren {
2526 $errstr = '';
2527 my $self = shift;
2528 my $dbh = $self->{dbh};
2529 my $rootgroup = shift;
2530 my $groupdest = shift;
2531 my $immed = shift || 'all';
2532
2533 # special break for default group; otherwise we get stuck.
2534 if ($rootgroup == 1) {
2535 # by definition, group 1 is the Root Of All Groups
2536 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2537 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2538 $sth->execute;
2539 while (my @this = $sth->fetchrow_array) {
2540 push @$groupdest, @this;
2541 }
2542 } else {
2543 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2544 $sth->execute($rootgroup);
2545 return if $sth->rows == 0;
2546 my @grouplist;
2547 while (my ($group) = $sth->fetchrow_array) {
2548 push @$groupdest, $group;
2549 $self->getChildren($group, $groupdest) if $immed eq 'all';
2550 }
2551 }
2552} # end getChildren()
2553
2554
2555## DNSDB::groupName()
2556# Return the group name based on a group ID
2557# Takes a database handle and the group ID
2558# Returns the group name or undef on failure
2559sub groupName {
2560 $errstr = '';
2561 my $self = shift;
2562 my $dbh = $self->{dbh};
2563 my $groupid = shift;
2564 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2565 $sth->execute($groupid);
2566 my ($groupname) = $sth->fetchrow_array();
2567 $errstr = $DBI::errstr if !$groupname;
2568 return $groupname if $groupname;
2569} # end groupName
2570
2571
2572## DNSDB::getGroupCount()
2573# Get count of subgroups in group or groups
2574# Takes a database handle and hash containing:
2575# - the "current" group
2576# - an array of "acceptable" groups
2577# - Optionally accept a "starts with" and/or "contains" filter argument
2578# Returns an integer count of the resulting group list.
2579sub getGroupCount {
2580 my $self = shift;
2581 my $dbh = $self->{dbh};
2582
2583 my %args = @_;
2584
2585 # Fail on bad curgroup argument. There's no sane fallback on this one.
2586 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2587 $errstr = "Bad or missing curgroup argument";
2588 return;
2589 }
2590 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2591 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2592 $errstr = "Bad childlist argument";
2593 return;
2594 }
2595
2596 my @filterargs;
2597 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2598 push @filterargs, "^$args{startwith}" if $args{startwith};
2599 push @filterargs, $args{filter} if $args{filter};
2600
2601 my $sql = "SELECT count(*) FROM groups ".
2602 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2603 ($args{startwith} ? " AND group_name ~* ?" : '').
2604 ($args{filter} ? " AND group_name ~* ?" : '');
2605 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2606 $errstr = $dbh->errstr if !$count;
2607 return $count;
2608} # end getGroupCount
2609
2610
2611## DNSDB::getGroupList()
2612# Get a list of sub^n-groups in the specified group(s)
2613# Takes the same arguments as getGroupCount() above
2614# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2615sub getGroupList {
2616 my $self = shift;
2617 my $dbh = $self->{dbh};
2618
2619 my %args = @_;
2620
2621 # Fail on bad curgroup argument. There's no sane fallback on this one.
2622 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2623 $errstr = "Bad or missing curgroup argument";
2624 return;
2625 }
2626 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2627 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2628 $errstr = "Bad childlist argument";
2629 return;
2630 }
2631
2632 my @filterargs;
2633 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2634 push @filterargs, "^$args{startwith}" if $args{startwith};
2635 push @filterargs, $args{filter} if $args{filter};
2636
2637 # protection against bad or missing arguments
2638 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2639 $args{sortby} = 'group' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
2640 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2641
2642 # munge sortby for columns in database
2643 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2644 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2645
2646 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
2647 FROM groups g
2648 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2649 ).
2650 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2651 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2652 ($args{filter} ? " AND g.group_name ~* ?" : '').
2653 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2654 " ORDER BY $args{sortby} $args{sortorder} ".
2655 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2656 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2657 $errstr = $dbh->errstr if !$glist;
2658
2659 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
2660 # this means there's lots of crunching needed to trim the result set back down.
2661 # So instead we track the order of the groups, and push the counts into the
2662 # arrayref result separately.
2663##fixme: put this whole sub in a transaction? might be
2664# needed for accurate results on very busy systems.
2665##fixme: large group lists need prepared statements?
2666#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
2667#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
2668#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
2669 foreach (@{$glist}) {
2670 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
2671 $$_{nusers} = $ucnt;
2672 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
2673 $$_{ndomains} = $dcnt;
2674 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
2675 $$_{nrevzones} = $rcnt;
2676 }
2677
2678 return $glist;
2679} # end getGroupList
2680
2681
2682## DNSDB::groupID()
2683# Return the group ID based on the group name
2684# Takes a database handle and the group name
2685# Returns the group ID or undef on failure
2686sub groupID {
2687 $errstr = '';
2688 my $self = shift;
2689 my $dbh = $self->{dbh};
2690 my $group = shift;
2691 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
2692 $errstr = $DBI::errstr if !$grpid;
2693 return $grpid if $grpid;
2694} # end groupID()
2695
2696
2697## DNSDB::addUser()
2698# Add a user.
2699# Takes a DB handle, username, group ID, password, state (active/inactive).
2700# Optionally accepts:
2701# user type (user/admin) - defaults to user
2702# permissions string - defaults to inherit from group
2703# three valid forms:
2704# i - Inherit permissions
2705# c:<user_id> - Clone permissions from <user_id>
2706# C:<permission list> - Set these specific permissions
2707# first name - defaults to username
2708# last name - defaults to blank
2709# phone - defaults to blank (could put other data within column def)
2710# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2711sub addUser {
2712 $errstr = '';
2713 my $self = shift;
2714 my $dbh = $self->{dbh};
2715 my $username = shift;
2716 my $group = shift;
2717 my $pass = shift;
2718 my $state = shift;
2719
2720 return ('FAIL', "Missing one or more required entries") if !defined($state);
2721 return ('FAIL', "Username must not be blank") if !$username;
2722
2723 # Munge in some alternate state values
2724 $state = 1 if $state =~ /^active$/;
2725 $state = 1 if $state =~ /^on$/;
2726 $state = 0 if $state =~ /^inactive$/;
2727 $state = 0 if $state =~ /^off$/;
2728
2729 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2730
2731 my $permstring = shift || 'i'; # default is to inhert permissions from group
2732
2733 my $fname = shift || $username;
2734 my $lname = shift || '';
2735 my $phone = shift || ''; # not going format-check
2736
2737 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2738 my $user_id;
2739
2740# quick check to start to see if we've already got one
2741 $sth->execute($username);
2742 ($user_id) = $sth->fetchrow_array;
2743
2744 return ('FAIL', "User already exists") if $user_id;
2745
2746 # Allow transactions, and raise an exception on errors so we can catch it later.
2747 # Use local to make sure these get "reset" properly on exiting this block
2748 local $dbh->{AutoCommit} = 0;
2749 local $dbh->{RaiseError} = 1;
2750
2751 # Wrap all the SQL in a transaction
2752 eval {
2753 # insert the user... note we set inherited perms by default since
2754 # it's simple and cleans up some other bits of state
2755 my $sth = $dbh->prepare("INSERT INTO users ".
2756 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2757 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2758 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2759
2760 # get the ID...
2761 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2762
2763# Permissions! Gotta set'em all!
2764 die "Invalid permission string $permstring\n"
2765 if $permstring !~ /^(?:
2766 i # inherit
2767 |c:\d+ # clone
2768 # custom. no, the leading , is not a typo
2769 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
2770 )$/x;
2771# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2772 if ($permstring ne 'i') {
2773 # for cloned or custom permissions, we have to create a new permissions entry.
2774 my $clonesrc = $group;
2775 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2776 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2777 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2778 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2779 undef, ($user_id,$clonesrc) );
2780 $dbh->do("UPDATE users SET permission_id=".
2781 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2782 "WHERE user_id=?", undef, ($user_id, $user_id) );
2783 }
2784 if ($permstring =~ /^C:/) {
2785 # finally for custom permissions, we set the passed-in permissions (and unset
2786 # any that might have been brought in by the clone operation above)
2787 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2788 undef, ($user_id) );
2789 foreach (@permtypes) {
2790 if ($permstring =~ /,$_/) {
2791 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2792 } else {
2793 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2794 }
2795 }
2796 }
2797
2798 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2799
2800##fixme: add another table to hold name/email for log table?
2801
2802 $self->_log(group_id => $group, entry => "Added user $username ($fname $lname)");
2803 # once we get here, we should have suceeded.
2804 $dbh->commit;
2805 }; # end eval
2806
2807 if ($@) {
2808 my $msg = $@;
2809 eval { $dbh->rollback; };
2810 if ($config{log_failures}) {
2811 $self->_log(group_id => $group, entry => "Error adding user $username: $msg");
2812 $dbh->commit; # since we enabled transactions earlier
2813 }
2814 return ('FAIL',"Error adding user $username: $msg");
2815 }
2816
2817 return ('OK',"User $username ($fname $lname) added");
2818} # end addUser
2819
2820
2821## DNSDB::getUserCount()
2822# Get count of users in group
2823# Takes a database handle and hash containing at least the current group, and optionally:
2824# - a reference list of secondary groups
2825# - a filter string
2826# - a "Starts with" string
2827sub getUserCount {
2828 my $self = shift;
2829 my $dbh = $self->{dbh};
2830
2831 my %args = @_;
2832
2833 # Fail on bad curgroup argument. There's no sane fallback on this one.
2834 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2835 $errstr = "Bad or missing curgroup argument";
2836 return;
2837 }
2838 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2839 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2840 $errstr = "Bad childlist argument";
2841 return;
2842 }
2843
2844 my @filterargs;
2845 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2846 push @filterargs, "^$args{startwith}" if $args{startwith};
2847 push @filterargs, $args{filter} if $args{filter};
2848
2849 my $sql = "SELECT count(*) FROM users ".
2850 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2851 ($args{startwith} ? " AND username ~* ?" : '').
2852 ($args{filter} ? " AND username ~* ?" : '');
2853 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2854 $errstr = $dbh->errstr if !$count;
2855 return $count;
2856} # end getUserCount()
2857
2858
2859## DNSDB::getUserList()
2860# Get list of users
2861# Takes the same arguments as getUserCount() above, plus optional:
2862# - sort field
2863# - sort order
2864# - offset/return-all-everything flag (defaults to $perpage records)
2865sub getUserList {
2866 my $self = shift;
2867 my $dbh = $self->{dbh};
2868
2869 my %args = @_;
2870
2871 # Fail on bad curgroup argument. There's no sane fallback on this one.
2872 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
2873 $errstr = "Bad or missing curgroup argument";
2874 return;
2875 }
2876 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
2877 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
2878 $errstr = "Bad childlist argument";
2879 return;
2880 }
2881
2882 my @filterargs;
2883 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2884 push @filterargs, "^$args{startwith}" if $args{startwith};
2885 push @filterargs, $args{filter} if $args{filter};
2886
2887 # better to request sorts on "simple" names, but it means we need to map it to real columns
2888 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
2889 fname => 'fname');
2890 $args{sortby} = $sortmap{$args{sortby}};
2891
2892 # protection against bad or missing arguments
2893 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
2894 $args{sortby} = 'u.username' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
2895 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2896
2897 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
2898 "FROM users u ".
2899 "INNER JOIN groups g ON u.group_id=g.group_id ".
2900 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2901 ($args{startwith} ? " AND u.username ~* ?" : '').
2902 ($args{filter} ? " AND u.username ~* ?" : '').
2903 " AND NOT u.type = 'R' ".
2904 " ORDER BY $args{sortby} $args{sortorder} ".
2905 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2906 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2907 $errstr = $dbh->errstr if !$ulist;
2908 return $ulist;
2909} # end getUserList()
2910
2911
2912## DNSDB::getUserDropdown()
2913# Get a list of usernames for use in a dropdown menu.
2914# Takes a database handle, current group, and optional "tag this as selected" flag.
2915# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
2916sub getUserDropdown {
2917 my $self = shift;
2918 my $dbh = $self->{dbh};
2919 my $grp = shift;
2920 my $sel = shift || 0;
2921
2922 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
2923 $sth->execute($grp);
2924
2925 my @userlist;
2926 while (my ($username,$uid) = $sth->fetchrow_array) {
2927 my %row = (
2928 username => $username,
2929 uid => $uid,
2930 selected => ($sel == $uid ? 1 : 0)
2931 );
2932 push @userlist, \%row;
2933 }
2934 return \@userlist;
2935} # end getUserDropdown()
2936
2937
2938## DNSDB:: updateUser()
2939# Update general data about user
2940sub updateUser {
2941 my $self = shift;
2942 my $dbh = $self->{dbh};
2943
2944##fixme: tweak calling convention so that we can update any given bit of data
2945 my $uid = shift;
2946 my $username = shift;
2947 my $group = shift;
2948 my $pass = shift;
2949 my $state = shift;
2950 my $type = shift || 'u';
2951 my $fname = shift || $username;
2952 my $lname = shift || '';
2953 my $phone = shift || ''; # not going format-check
2954
2955 my $resultmsg = '';
2956
2957 # Munge in some alternate state values
2958 $state = 1 if $state =~ /^active$/;
2959 $state = 1 if $state =~ /^on$/;
2960 $state = 0 if $state =~ /^inactive$/;
2961 $state = 0 if $state =~ /^off$/;
2962
2963 # Allow transactions, and raise an exception on errors so we can catch it later.
2964 # Use local to make sure these get "reset" properly on exiting this block
2965 local $dbh->{AutoCommit} = 0;
2966 local $dbh->{RaiseError} = 1;
2967
2968 my $sth;
2969
2970 # Password can be left blank; if so we assume there's one on file.
2971 # Actual blank passwords are bad, mm'kay?
2972 if (!$pass) {
2973 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
2974 } else {
2975 $pass = unix_md5_crypt($pass);
2976 }
2977
2978 eval {
2979 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
2980 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
2981 $resultmsg = "Updated user info for $username ($fname $lname)";
2982 $self->_log(group_id => $group, entry => $resultmsg);
2983 $dbh->commit;
2984 };
2985 if ($@) {
2986 my $msg = $@;
2987 eval { $dbh->rollback; };
2988 if ($config{log_failures}) {
2989 $self->_log(group_id => $group, entry => "Error updating user $username: $msg");
2990 $dbh->commit; # since we enabled transactions earlier
2991 }
2992 return ('FAIL',"Error updating user $username: $msg");
2993 }
2994
2995 return ('OK',$resultmsg);
2996} # end updateUser()
2997
2998
2999## DNSDB::delUser()
3000# Delete a user.
3001# Takes a database handle and user ID
3002# Returns a success/failure code and matching message
3003sub delUser {
3004 my $self = shift;
3005 my $dbh = $self->{dbh};
3006 my $userid = shift;
3007
3008 return ('FAIL',"Bad userid") if !defined($userid);
3009
3010 my $userdata = $self->getUserData($userid);
3011
3012 # Allow transactions, and raise an exception on errors so we can catch it later.
3013 # Use local to make sure these get "reset" properly on exiting this block
3014 local $dbh->{AutoCommit} = 0;
3015 local $dbh->{RaiseError} = 1;
3016
3017 eval {
3018 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
3019 $self->_log(group_id => $userdata->{group_id},
3020 entry => "Deleted user ID $userid/".$userdata->{username}.
3021 " (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3022 $dbh->commit;
3023 };
3024 if ($@) {
3025 my $msg = $@;
3026 eval { $dbh->rollback; };
3027 if ($config{log_failures}) {
3028 $self->_log(group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
3029 "$userid/".$userdata->{username}.": $msg");
3030 $dbh->commit;
3031 }
3032 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
3033 }
3034
3035 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
3036} # end delUser
3037
3038
3039## DNSDB::userFullName()
3040# Return a pretty string!
3041# Takes a user_id and optional printf-ish string to indicate which pieces where:
3042# %u for the username
3043# %f for the first name
3044# %l for the last name
3045# All other text in the passed string will be left as-is.
3046##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
3047sub userFullName {
3048 $errstr = '';
3049 my $self = shift;
3050 my $dbh = $self->{dbh};
3051 my $userid = shift;
3052 my $fullformat = shift || '%f %l (%u)';
3053 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
3054 $sth->execute($userid);
3055 my ($uname,$fname,$lname) = $sth->fetchrow_array();
3056 $errstr = $DBI::errstr if !$uname;
3057
3058 $fullformat =~ s/\%u/$uname/g;
3059 $fullformat =~ s/\%f/$fname/g;
3060 $fullformat =~ s/\%l/$lname/g;
3061
3062 return $fullformat;
3063} # end userFullName
3064
3065
3066## DNSDB::userStatus()
3067# Sets and/or returns a user's status
3068# Takes a database handle, user ID and optionally a status argument
3069# Returns undef on errors.
3070sub userStatus {
3071 my $self = shift;
3072 my $dbh = $self->{dbh};
3073 my $id = shift;
3074 my $newstatus = shift || 'mu';
3075
3076 return undef if $id !~ /^\d+$/;
3077
3078 my $userdata = $self->getUserData($id);
3079
3080 # Allow transactions, and raise an exception on errors so we can catch it later.
3081 # Use local to make sure these get "reset" properly on exiting this block
3082 local $dbh->{AutoCommit} = 0;
3083 local $dbh->{RaiseError} = 1;
3084
3085 if ($newstatus ne 'mu') {
3086 # ooo, fun! let's see what we were passed for status
3087 eval {
3088 $newstatus = 0 if $newstatus eq 'useroff';
3089 $newstatus = 1 if $newstatus eq 'useron';
3090 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
3091
3092 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
3093 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
3094
3095 my %loghash;
3096 $loghash{group_id} = $self->parentID(id => $id, type => 'user');
3097 $loghash{entry} = $resultstr;
3098 $self->_log(%loghash);
3099
3100 $dbh->commit;
3101 };
3102 if ($@) {
3103 my $msg = $@;
3104 eval { $dbh->rollback; };
3105 $resultstr = '';
3106 $errstr = $msg;
3107##fixme: failure logging?
3108 return;
3109 }
3110 }
3111
3112 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
3113 return $status;
3114} # end userStatus()
3115
3116
3117## DNSDB::getUserData()
3118# Get misc user data for display
3119sub getUserData {
3120 my $self = shift;
3121 my $dbh = $self->{dbh};
3122 my $uid = shift;
3123
3124 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
3125 "FROM users WHERE user_id=?");
3126 $sth->execute($uid);
3127 return $sth->fetchrow_hashref();
3128} # end getUserData()
3129
3130
3131## DNSDB::addLoc()
3132# Add a new location.
3133# Takes a database handle, group ID, short and long description, and a comma-separated
3134# list of IP addresses.
3135# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3136sub addLoc {
3137 my $self = shift;
3138 my $dbh = $self->{dbh};
3139 my $grp = shift;
3140 my $shdesc = shift;
3141 my $comments = shift;
3142 my $iplist = shift;
3143
3144 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3145 $comments = '' if !$comments;
3146 $iplist = '' if !$iplist;
3147
3148 my $loc;
3149
3150 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3151 # for now; 676 locations should satisfy all but the largest of the huge networks.
3152 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3153 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3154
3155# add just after "my $origloc = $loc;":
3156# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3157# # and wrap it around.
3158# # Yes, they skip a couple of possibles. No, I don't care.
3159# $loc = 'aA' if $loc eq 'zz';
3160# $loc = 'Aa' if $loc eq 'zZ';
3161# $loc = 'ZA' if $loc eq 'Zz';
3162# $loc = 'aa' if $loc eq 'ZZ';
3163
3164 # Allow transactions, and raise an exception on errors so we can catch it later.
3165 # Use local to make sure these get "reset" properly on exiting this block
3166 local $dbh->{AutoCommit} = 0;
3167 local $dbh->{RaiseError} = 1;
3168
3169##fixme: There is probably a far better way to do this. Sequential increments
3170# are marginally less stupid that pure random generation though, and the existence
3171# check makes sure we don't stomp on an imported one.
3172
3173 eval {
3174 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3175 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3176 ($loc) = ($loc =~ /^(..)/) if $loc;
3177 my $origloc = $loc;
3178 $loc = 'aa' if !$loc;
3179 # Make a change...
3180 $loc++;
3181 # ... and keep changing if it exists
3182 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3183 $loc++;
3184 ($loc) = ($loc =~ /^(..)/);
3185 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3186##fixme: really need to handle this case faster somehow
3187#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3188 }
3189 # And now we should have a unique location. tinydns fundamentally limits the
3190 # number of these but there's no doc on what characters are valid.
3191 $shdesc = $loc if !$shdesc;
3192 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3193 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3194 $self->_log(entry => "Added location ($shdesc, '$iplist')");
3195 $dbh->commit;
3196 };
3197 if ($@) {
3198 my $msg = $@;
3199 eval { $dbh->rollback; };
3200 if ($config{log_failures}) {
3201 $shdesc = $loc if !$shdesc;
3202 $self->_log(entry => "Failed adding location ($shdesc, '$iplist'): $msg");
3203 $dbh->commit;
3204 }
3205 return ('FAIL',$msg);
3206 }
3207
3208 return ('OK',$loc);
3209} # end addLoc()
3210
3211
3212## DNSDB::updateLoc()
3213# Update details of a location.
3214# Takes a database handle, location ID, group ID, short description,
3215# long comments/notes, and comma/space-separated IP list
3216# Returns a result code and message
3217sub updateLoc {
3218 my $self = shift;
3219 my $dbh = $self->{dbh};
3220 my $loc = shift;
3221 my $grp = shift;
3222 my $shdesc = shift;
3223 my $comments = shift;
3224 my $iplist = shift;
3225
3226 $shdesc = '' if !$shdesc;
3227 $comments = '' if !$comments;
3228 $iplist = '' if !$iplist;
3229
3230 # Allow transactions, and raise an exception on errors so we can catch it later.
3231 # Use local to make sure these get "reset" properly on exiting this block
3232 local $dbh->{AutoCommit} = 0;
3233 local $dbh->{RaiseError} = 1;
3234
3235 my $oldloc = $self->getLoc($loc);
3236 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3237
3238 eval {
3239 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3240 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3241 $self->_log(entry => $okmsg);
3242 $dbh->commit;
3243 };
3244 if ($@) {
3245 my $msg = $@;
3246 eval { $dbh->rollback; };
3247 if ($config{log_failures}) {
3248 $shdesc = $loc if !$shdesc;
3249 $self->_log(entry => "Failed updating location ($shdesc, '$iplist'): $msg");
3250 $dbh->commit;
3251 }
3252 return ('FAIL',$msg);
3253 }
3254
3255 return ('OK',$okmsg);
3256} # end updateLoc()
3257
3258
3259## DNSDB::delLoc()
3260sub delLoc {
3261 my $self = shift;
3262 my $dbh = $self->{dbh};
3263 my $loc = shift;
3264
3265 # Allow transactions, and raise an exception on errors so we can catch it later.
3266 # Use local to make sure these get "reset" properly on exiting this block
3267 local $dbh->{AutoCommit} = 0;
3268 local $dbh->{RaiseError} = 1;
3269
3270 my $oldloc = $self->getLoc($loc);
3271 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3272 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3273
3274 eval {
3275 # Check for records with this location first. Deleting a location without deleting records
3276 # tagged for that location will render them unpublished without other warning.
3277 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3278 die "Records still exist in location $olddesc\n" if $r;
3279 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3280 $self->_log(entry => $okmsg);
3281 $dbh->commit;
3282 };
3283 if ($@) {
3284 my $msg = $@;
3285 eval { $dbh->rollback; };
3286 if ($config{log_failures}) {
3287 $self->_log(entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3288 $dbh->commit;
3289 }
3290 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3291 }
3292
3293 return ('OK',$okmsg);
3294} # end delLoc()
3295
3296
3297## DNSDB::getLoc()
3298# Get details about a location/view
3299# Takes a database handle and location ID.
3300# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3301sub getLoc {
3302 my $self = shift;
3303 my $dbh = $self->{dbh};
3304 my $loc = shift;
3305
3306 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3307 $sth->execute($loc);
3308 return $sth->fetchrow_hashref();
3309} # end getLoc()
3310
3311
3312## DNSDB::getLocCount()
3313# Get count of locations/views
3314# Takes a database handle and hash containing at least the current group, and optionally:
3315# - a reference list of secondary groups
3316# - a filter string
3317# - a "Starts with" string
3318sub getLocCount {
3319 my $self = shift;
3320 my $dbh = $self->{dbh};
3321
3322 my %args = @_;
3323
3324 # Fail on bad curgroup argument. There's no sane fallback on this one.
3325 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3326 $errstr = "Bad or missing curgroup argument";
3327 return;
3328 }
3329 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3330 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3331 $errstr = "Bad childlist argument";
3332 return;
3333 }
3334
3335 my @filterargs;
3336 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3337 push @filterargs, "^$args{startwith}" if $args{startwith};
3338 push @filterargs, $args{filter} if $args{filter};
3339
3340 my $sql = "SELECT count(*) FROM locations ".
3341 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3342 ($args{startwith} ? " AND description ~* ?" : '').
3343 ($args{filter} ? " AND description ~* ?" : '');
3344 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3345 $errstr = $dbh->errstr if !$count;
3346 return $count;
3347} # end getLocCount()
3348
3349
3350## DNSDB::getLocList()
3351sub getLocList {
3352 my $self = shift;
3353 my $dbh = $self->{dbh};
3354
3355 my %args = @_;
3356
3357 # Fail on bad curgroup argument. There's no sane fallback on this one.
3358 if (!$args{curgroup} || $args{curgroup} !~ /^\d+$/) {
3359 $errstr = "Bad or missing curgroup argument";
3360 return;
3361 }
3362 # Fail on bad childlist argument. This could be sanely ignored if bad, maybe.
3363 if ($args{childlist} && $args{childlist} !~ /^[\d,]+$/) {
3364 $errstr = "Bad childlist argument";
3365 return;
3366 }
3367
3368 my @filterargs;
3369 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3370 push @filterargs, "^$args{startwith}" if $args{startwith};
3371 push @filterargs, $args{filter} if $args{filter};
3372
3373 # better to request sorts on "simple" names, but it means we need to map it to real columns
3374# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3375# fname => 'fname');
3376# $args{sortby} = $sortmap{$args{sortby}};
3377
3378 # protection against bad or missing arguments
3379 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3380 $args{sortby} = 'l.description' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
3381 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3382
3383 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3384 "FROM locations l ".
3385 "INNER JOIN groups g ON l.group_id=g.group_id ".
3386 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3387 ($args{startwith} ? " AND l.description ~* ?" : '').
3388 ($args{filter} ? " AND l.description ~* ?" : '').
3389 " ORDER BY $args{sortby} $args{sortorder} ".
3390 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
3391 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3392 $errstr = $dbh->errstr if !$ulist;
3393 return $ulist;
3394} # end getLocList()
3395
3396
3397## DNSDB::getLocDropdown()
3398# Get a list of location names for use in a dropdown menu.
3399# Takes a database handle, current group, and optional "tag this as selected" flag.
3400# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3401sub getLocDropdown {
3402 my $self = shift;
3403 my $dbh = $self->{dbh};
3404 my $grp = shift;
3405 my $sel = shift || '';
3406
3407 my $sth = $dbh->prepare(qq(
3408 SELECT description,location FROM locations
3409 WHERE group_id=?
3410 ORDER BY description
3411 ) );
3412 $sth->execute($grp);
3413
3414 my @loclist;
3415 push @loclist, { locname => "(Default/All)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3416 while (my ($locname, $loc) = $sth->fetchrow_array) {
3417 my %row = (
3418 locname => $locname,
3419 loc => $loc,
3420 selected => ($sel eq $loc ? 1 : 0)
3421 );
3422 push @loclist, \%row;
3423 }
3424 return \@loclist;
3425} # end getLocDropdown()
3426
3427
3428## DNSDB::getSOA()
3429# Return all suitable fields from an SOA record in separate elements of a hash
3430# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3431sub getSOA {
3432 $errstr = '';
3433 my $self = shift;
3434 my $dbh = $self->{dbh};
3435 my $def = shift;
3436 my $rev = shift;
3437 my $id = shift;
3438
3439 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3440 # - should really attach serial to the zone parent somewhere
3441
3442 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3443 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3444 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3445 return if !$ret;
3446##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3447
3448 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3449 delete $ret->{host};
3450 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3451 delete $ret->{val};
3452
3453 return $ret;
3454} # end getSOA()
3455
3456
3457## DNSDB::updateSOA()
3458# Update the specified SOA record
3459# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3460# Returns a two-element list with a result code and message
3461sub updateSOA {
3462 my $self = shift;
3463 my $dbh = $self->{dbh};
3464 my $defrec = shift;
3465 my $revrec = shift;
3466
3467 my %soa = @_;
3468
3469 my $oldsoa = $self->getSOA($defrec, $revrec, $soa{id});
3470
3471 my $msg;
3472 my %logdata;
3473 if ($defrec eq 'n') {
3474 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3475 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3476 $logdata{group_id} = $self->parentID(id => $soa{id}, revrec => $revrec,
3477 type => ($revrec eq 'n' ? 'domain' : 'revzone') );
3478 } else {
3479 $logdata{group_id} = $soa{id};
3480 }
3481 my $parname = ($defrec eq 'y' ? $self->groupName($soa{id}) :
3482 ($revrec eq 'n' ? $self->domainName($soa{id}) : $self->revName($soa{id})) );
3483
3484 # Allow transactions, and raise an exception on errors so we can catch it later.
3485 # Use local to make sure these get "reset" properly on exiting this block
3486 local $dbh->{AutoCommit} = 0;
3487 local $dbh->{RaiseError} = 1;
3488
3489 eval {
3490 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3491 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3492 $soa{ttl}, $oldsoa->{record_id}) );
3493 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3494 "SOA for $parname: ".
3495 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3496 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3497 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3498 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3499
3500 $logdata{entry} = $msg;
3501 $self->_log(%logdata);
3502
3503 $dbh->commit;
3504 };
3505 if ($@) {
3506 $msg = $@;
3507 eval { $dbh->rollback; };
3508 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3509 "SOA record for $parname: $msg";
3510 if ($config{log_failures}) {
3511 $self->_log(%logdata);
3512 $dbh->commit;
3513 }
3514 return ('FAIL', $logdata{entry});
3515 } else {
3516 return ('OK', $msg);
3517 }
3518} # end updateSOA()
3519
3520
3521## DNSDB::getRecLine()
3522# Return all data fields for a zone record in separate elements of a hash
3523# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3524sub getRecLine {
3525 $errstr = '';
3526 my $self = shift;
3527 my $dbh = $self->{dbh};
3528 my $defrec = shift;
3529 my $revrec = shift;
3530 my $id = shift;
3531
3532 my $sql = "SELECT record_id,host,type,val,ttl".
3533 ($defrec eq 'n' ? ',location' : '').
3534 ($revrec eq 'n' ? ',distance,weight,port' : '').
3535 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id FROM ').
3536 _rectable($defrec,$revrec)." WHERE record_id=?";
3537 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3538
3539 if ($dbh->err) {
3540 $errstr = $DBI::errstr;
3541 return undef;
3542 }
3543
3544 if (!$ret) {
3545 $errstr = "No such record";
3546 return undef;
3547 }
3548
3549 # explicitly set a parent id
3550 if ($defrec eq 'y') {
3551 $ret->{parid} = $ret->{group_id};
3552 } else {
3553 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3554 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3555 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3556 }
3557 $ret->{address} = $ret->{val}; # because.
3558
3559 return $ret;
3560}
3561
3562
3563##fixme: should use above (getRecLine()) to get lines for below?
3564## DNSDB::getRecList()
3565# Return records for a group or zone
3566# Takes a default/live flag, group or zone ID, start,
3567# number of records, sort field, and sort order
3568# Returns a reference to an array of hashes
3569sub getRecList {
3570 $errstr = '';
3571 my $self = shift;
3572 my $dbh = $self->{dbh};
3573
3574 my %args = @_;
3575
3576 my @filterargs;
3577
3578 push @filterargs, $args{filter} if $args{filter};
3579
3580 # protection against bad or missing arguments
3581 $args{sortorder} = 'ASC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
3582 my $defsort;
3583 $defsort = 'host' if $args{revrec} eq 'n'; # default sort by host on domain record list
3584 $defsort = 'val' if $args{revrec} eq 'y'; # default sort by IP on revzone record list
3585 $args{sortby} = '' if !$args{sortby};
3586 $args{sortby} = $defsort if !$args{revrec};
3587 $args{sortby} = $defsort if $args{sortby} !~ /^[\w_,.]+$/;
3588 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3589 my $perpage = ($args{nrecs} ? $args{nrecs} : $config{perpage});
3590
3591 # sort reverse zones on IP, correctly
3592 # do other fiddling with $args{sortby} while we're at it.
3593 # whee! multisort means just passing comma-separated fields in sortby!
3594 my $newsort = '';
3595 foreach my $sf (split /,/, $args{sortby}) {
3596 $sf = "r.$sf";
3597 $sf =~ s/r\.val/CAST (r.val AS inet)/
3598 if $args{revrec} eq 'y' && $args{defrec} eq 'n';
3599 $sf =~ s/r\.type/t.alphaorder/;
3600 $newsort .= ",$sf";
3601 }
3602 $newsort =~ s/^,//;
3603
3604 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3605 $sql .= ",l.description AS locname" if $args{defrec} eq 'n';
3606 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
3607 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
3608 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3609 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
3610 $sql .= "WHERE "._recparent($args{defrec},$args{revrec})." = ?";
3611 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3612 $sql .= " AND (r.host ~* ? OR r.val ~* ?)" if $args{filter};
3613 $sql .= " ORDER BY $newsort $args{sortorder}";
3614 # ensure consistent ordering by sorting on record_id too
3615 $sql .= ", record_id $args{sortorder}";
3616 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $perpage OFFSET ".$args{offset}*$perpage);
3617
3618 my @bindvars = ($args{id});
3619 push @bindvars, ($args{filter},$args{filter}) if $args{filter};
3620
3621 my $ret = $dbh->selectall_arrayref($sql, { Slice => {} }, (@bindvars) );
3622 $errstr = "Error retrieving records: ".$dbh->errstr if !$ret;
3623 return $ret;
3624} # end getRecList()
3625
3626
3627## DNSDB::getRecCount()
3628# Return count of non-SOA records in zone (or default records in a group)
3629# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3630# and optional filtering modifier
3631# Returns the count
3632sub getRecCount {
3633 my $self = shift;
3634 my $dbh = $self->{dbh};
3635 my $defrec = shift;
3636 my $revrec = shift;
3637 my $id = shift;
3638 my $filter = shift || '';
3639
3640 # keep the nasties down, since we can't ?-sub this bit. :/
3641 # note this is chars allowed in DNS hostnames
3642 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3643
3644 my @bindvars = ($id);
3645 push @bindvars, $filter if $filter;
3646 my $sql = "SELECT count(*) FROM ".
3647 _rectable($defrec,$revrec).
3648 " WHERE "._recparent($defrec,$revrec)."=? ".
3649 "AND NOT type=$reverse_typemap{SOA}".
3650 ($filter ? " AND host ~* ?" : '');
3651 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3652
3653 return $count;
3654
3655} # end getRecCount()
3656
3657
3658## DNSDB::addRec()
3659# Add a new record to a domain or a group's default records
3660# Takes a database handle, default/live flag, group/domain ID,
3661# host, type, value, and TTL
3662# Some types require additional detail: "distance" for MX and SRV,
3663# and weight/port for SRV
3664# Returns a status code and detail message in case of error
3665##fixme: pass a hash with the record data, not a series of separate values
3666sub addRec {
3667 $errstr = '';
3668 my $self = shift;
3669 my $dbh = $self->{dbh};
3670 my $defrec = shift;
3671 my $revrec = shift;
3672 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3673 # domain_id for domain records)
3674
3675 my $host = shift;
3676 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3677 my $val = shift;
3678 my $ttl = shift;
3679 my $location = shift;
3680 $location = '' if !$location;
3681
3682 # Spaces are evil.
3683 $$host =~ s/^\s+//;
3684 $$host =~ s/\s+$//;
3685 if ($typemap{$$rectype} ne 'TXT') {
3686 # Leading or trailng spaces could be legit in TXT records.
3687 $$val =~ s/^\s+//;
3688 $$val =~ s/\s+$//;
3689 }
3690
3691 # prep for validation
3692 my $addr = NetAddr::IP->new($$val);
3693 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3694
3695 my $domid = 0;
3696 my $revid = 0;
3697
3698 my $retcode = 'OK'; # assume everything will go OK
3699 my $retmsg = '';
3700
3701 # do simple validation first
3702 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3703
3704 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3705 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3706 # of types. Other things may also be added to validate default records of several flavours.
3707 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z . _)")
3708 if $defrec eq 'n' && ($revrec eq 'y' ? $$rectype != $reverse_typemap{TXT} : 1) &&
3709 $$host !~ /^[0-9a-z_%.-]+$/i;
3710
3711 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3712 my $dist = shift;
3713 my $weight = shift;
3714 my $port = shift;
3715
3716 my $fields;
3717 my @vallist;
3718
3719 # Call the validation sub for the type requested.
3720 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec, id => $id,
3721 host => $host, rectype => $rectype, val => $val, addr => $addr,
3722 dist => \$dist, port => \$port, weight => \$weight,
3723 fields => \$fields, vallist => \@vallist);
3724
3725 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3726
3727 # Set up database fields and bind parameters
3728 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3729 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3730
3731 # locations are not for default records, silly coder!
3732 if ($defrec eq 'n') {
3733 $fields .= ",location";
3734 push @vallist, $location;
3735 }
3736 my $vallen = '?'.(',?'x$#vallist);
3737
3738 # Put together the success log entry. We have to use this horrible kludge
3739 # because domain_id and rdns_id may or may not be present, and if they are,
3740 # they're not at a guaranteed consistent index in the array. wheee!
3741 my %logdata;
3742 my @ftmp = split /,/, $fields;
3743 for (my $i=0; $i <= $#vallist; $i++) {
3744 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3745 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3746 }
3747 $logdata{group_id} = $id if $defrec eq 'y';
3748 $logdata{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
3749 if $defrec eq 'n';
3750 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3751 # NS records for revzones get special treatment
3752 if ($revrec eq 'y' && $$rectype == 2) {
3753 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3754 } else {
3755 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3756 }
3757
3758 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3759 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3760 if $typemap{$$rectype} eq 'SRV';
3761 $logdata{entry} .= "', TTL $ttl";
3762 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
3763
3764 # Allow transactions, and raise an exception on errors so we can catch it later.
3765 # Use local to make sure these get "reset" properly on exiting this block
3766 local $dbh->{AutoCommit} = 0;
3767 local $dbh->{RaiseError} = 1;
3768
3769 eval {
3770 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3771 undef, @vallist);
3772 $self->_log(%logdata);
3773 $dbh->commit;
3774 };
3775 if ($@) {
3776 my $msg = $@;
3777 eval { $dbh->rollback; };
3778 if ($config{log_failures}) {
3779 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3780 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3781 $self->_log(%logdata);
3782 $dbh->commit;
3783 }
3784 return ('FAIL',$msg);
3785 }
3786
3787 $resultstr = $logdata{entry};
3788 return ($retcode, $retmsg);
3789
3790} # end addRec()
3791
3792
3793## DNSDB::updateRec()
3794# Update a record
3795# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3796# Returns a status code and message
3797sub updateRec {
3798 $errstr = '';
3799
3800 my $self = shift;
3801 my $dbh = $self->{dbh};
3802 my $defrec = shift;
3803 my $revrec = shift;
3804 my $id = shift;
3805 my $parid = shift; # immediate parent entity that we're descending from to update the record
3806
3807 # all records have these
3808 my $host = shift;
3809 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
3810 my $rectype = shift;
3811 my $val = shift;
3812 my $ttl = shift;
3813 my $location = shift; # may be empty/null/undef depending on caller
3814 $location = '' if !$location;
3815
3816 # just set it to an empty string; failures will be caught later.
3817 $$host = '' if !$$host;
3818
3819 # Spaces are evil.
3820 $$host =~ s/^\s+//;
3821 $$host =~ s/\s+$//;
3822 if ($typemap{$$rectype} ne 'TXT') {
3823 # Leading or trailng spaces could be legit in TXT records.
3824 $$val =~ s/^\s+//;
3825 $$val =~ s/\s+$//;
3826 }
3827
3828 # prep for validation
3829 my $addr = NetAddr::IP->new($$val);
3830 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3831
3832 my $domid = 0;
3833 my $revid = 0;
3834
3835 my $retcode = 'OK'; # assume everything will go OK
3836 my $retmsg = '';
3837
3838 # do simple validation first
3839 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3840
3841 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3842 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3843 # of types. Other things may also be added to validate default records of several flavours.
3844 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z - . _)")
3845 if $defrec eq 'n' && ($revrec eq 'y' ? $$rectype != $reverse_typemap{TXT} : 1) &&
3846 $$host !~ /^[0-9a-z_%.-]+$/i;
3847
3848 # only MX and SRV will use these
3849 my $dist = shift || 0;
3850 my $weight = shift || 0;
3851 my $port = shift || 0;
3852
3853 my $fields;
3854 my @vallist;
3855
3856 # get old record data so we have the right parent ID
3857 # and for logging (eventually)
3858 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
3859
3860 # Call the validation sub for the type requested.
3861 # Note the ID to pass here is the *parent*, not the record
3862 ($retcode,$retmsg) = $validators{$$rectype}($self, defrec => $defrec, revrec => $revrec,
3863 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
3864 host => $host, rectype => $rectype, val => $val, addr => $addr,
3865 dist => \$dist, port => \$port, weight => \$weight,
3866 fields => \$fields, vallist => \@vallist,
3867 update => $id);
3868
3869 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3870
3871 # Set up database fields and bind parameters. Note only the optional fields
3872 # (distance, weight, port, secondary parent ID) are added in the validation call above
3873 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3874 push @vallist, ($$host,$$rectype,$$val,$ttl,
3875 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
3876
3877 # locations are not for default records, silly coder!
3878 if ($defrec eq 'n') {
3879 $fields .= ",location";
3880 push @vallist, $location;
3881 }
3882
3883 # hack hack PTHUI
3884 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
3885 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
3886 # mainly needed for crossover types that got coerced down to "standard" types
3887 if ($defrec eq 'n') {
3888 if ($$rectype == $reverse_typemap{PTR}) {
3889 $fields .= ",domain_id";
3890 push @vallist, 0;
3891 }
3892 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
3893 $fields .= ",rdns_id";
3894 push @vallist, 0;
3895 }
3896 }
3897 # fix fat-finger-originated record type changes
3898 if ($$rectype == 65285) {
3899 $fields .= ",rdns_id" if $revrec eq 'n';
3900 $fields .= ",domain_id" if $revrec eq 'y';
3901 push @vallist, 0;
3902 }
3903 if ($defrec eq 'n') {
3904 $domid = $parid if $revrec eq 'n';
3905 $revid = $parid if $revrec eq 'y';
3906 }
3907
3908 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
3909 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
3910 # will be maintained (due to "not-in-zone" validation changes)
3911 my %logdata;
3912 $logdata{domain_id} = $domid;
3913 $logdata{rdns_id} = $revid;
3914 my @ftmp = split /,/, $fields;
3915 for (my $i=0; $i <= $#vallist; $i++) {
3916 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3917 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3918 }
3919 $logdata{group_id} = $parid if $defrec eq 'y';
3920 $logdata{group_id} = $self->parentID(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec)
3921 if $defrec eq 'n';
3922 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
3923 # NS records for revzones get special treatment
3924 if ($revrec eq 'y' && $$rectype == 2) {
3925 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
3926 } else {
3927 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3928 }
3929 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3930 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3931 if $typemap{$oldrec->{type}} eq 'SRV';
3932 $logdata{entry} .= "', TTL $oldrec->{ttl}";
3933 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
3934 $logdata{entry} .= "\nto\n";
3935 # More NS special
3936 if ($revrec eq 'y' && $$rectype == 2) {
3937 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
3938 } else {
3939 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
3940 }
3941 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3942 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
3943 $logdata{entry} .= "', TTL $ttl";
3944 $logdata{entry} .= ", location ".$self->getLoc($location)->{description} if $location;
3945
3946 local $dbh->{AutoCommit} = 0;
3947 local $dbh->{RaiseError} = 1;
3948
3949 # Fiddle the field list into something suitable for updates
3950 $fields =~ s/,/=?,/g;
3951 $fields .= "=?";
3952
3953 eval {
3954 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
3955 $self->_log(%logdata);
3956 $dbh->commit;
3957 };
3958 if ($@) {
3959 my $msg = $@;
3960 eval { $dbh->rollback; };
3961 if ($config{log_failures}) {
3962 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
3963 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3964 $self->_log(%logdata);
3965 $dbh->commit;
3966 }
3967 return ('FAIL', $msg);
3968 }
3969
3970 $resultstr = $logdata{entry};
3971 return ($retcode, $retmsg);
3972} # end updateRec()
3973
3974
3975## DNSDB::downconvert()
3976# A mostly internal (not exported) semiutilty sub to downconvert from pseudotype <x>
3977# to a compatible component type. Only a handful of operations are valid, anything
3978# else is a null-op.
3979# Takes the record ID and the new type. Returns boolean.
3980sub downconvert {
3981 my $self = shift;
3982 my $dbh = $self->{dbh};
3983 my $recid = shift;
3984 my $newtype = shift;
3985
3986 # also, only work on live records; little to no value trying to do this on default records.
3987 my $rec = $self->getRecLine('n', 'y', $recid);
3988
3989 # hm?
3990 #return 1 if !$rec;
3991
3992 return 1 if $rec->{type} < 65000; # Only the reverse-record pseudotypes can be downconverted
3993 return 1 if $rec->{type} == 65282; # Nowhere to go
3994
3995 my $delpar;
3996 my @sqlargs;
3997 if ($rec->{type} == 65280) {
3998 return 1 if $newtype != 1 && $newtype != 12;
3999 $delpar = ($newtype == 1 ? 'rdns_id' : 'domain_id');
4000 push @sqlargs, 0, $newtype, $recid;
4001 } elsif ($rec->{type} == 65281) {
4002 return 1 if $newtype != 28 && $newtype != 12;
4003 $delpar = ($newtype == 28 ? 'rdns_id' : 'domain_id');
4004 push @sqlargs, 0, $newtype, $recid;
4005 } elsif ($rec->{type} == 65283) {
4006 return 1 if $newtype != 65282;
4007 $delpar = 'rdns_id';
4008 } elsif ($rec->{type} == 65284) {
4009 return 1 if $newtype != 65282;
4010 $delpar = 'rdns_id';
4011 } else {
4012 # Your llama is on fire.
4013 }
4014
4015 local $dbh->{AutoCommit} = 0;
4016 local $dbh->{RaiseError} = 1;
4017
4018 eval {
4019 $dbh->do("UPDATE records SET $delpar = ?, type = ? WHERE record_id = ?", undef, @sqlargs);
4020 $dbh->commit;
4021 };
4022 if ($@) {
4023 $errstr = $@;
4024 eval { $dbh->rollback; };
4025 return 0;
4026 }
4027 return 1;
4028} # end downconvert()
4029
4030
4031## DNSDB::delRec()
4032# Delete a record.
4033sub delRec {
4034 $errstr = '';
4035 my $self = shift;
4036 my $dbh = $self->{dbh};
4037 my $defrec = shift;
4038 my $revrec = shift;
4039 my $id = shift;
4040
4041 my $oldrec = $self->getRecLine($defrec, $revrec, $id);
4042
4043 # Allow transactions, and raise an exception on errors so we can catch it later.
4044 # Use local to make sure these get "reset" properly on exiting this block
4045 local $dbh->{AutoCommit} = 0;
4046 local $dbh->{RaiseError} = 1;
4047
4048 # Put together the log entry
4049 my %logdata;
4050 $logdata{domain_id} = $oldrec->{domain_id};
4051 $logdata{rdns_id} = $oldrec->{rdns_id};
4052 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
4053 $logdata{group_id} = $self->parentID(id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'),
4054 revrec => $revrec)
4055 if $defrec eq 'n';
4056 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
4057 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
4058 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
4059 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
4060 if $typemap{$oldrec->{type}} eq 'SRV';
4061 $logdata{entry} .= "', TTL $oldrec->{ttl}";
4062 $logdata{entry} .= ", location ".$self->getLoc($oldrec->{location})->{description} if $oldrec->{location};
4063
4064 eval {
4065 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
4066 $self->_log(%logdata);
4067 $dbh->commit;
4068 };
4069 if ($@) {
4070 my $msg = $@;
4071 eval { $dbh->rollback; };
4072 if ($config{log_failures}) {
4073 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
4074 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
4075 $self->_log(%logdata);
4076 $dbh->commit;
4077 }
4078 return ('FAIL', $msg);
4079 }
4080
4081 return ('OK',$logdata{entry});
4082} # end delRec()
4083
4084
4085## DNSDB::getLogCount()
4086# Get a count of log entries
4087# Takes a database handle and a hash containing at least:
4088# - Entity ID and entity type as the primary log "slice"
4089sub getLogCount {
4090 my $self = shift;
4091 my $dbh = $self->{dbh};
4092
4093 my %args = @_;
4094
4095 my @filterargs;
4096##fixme: which fields do we want to filter on?
4097# push @filterargs,
4098
4099 $errstr = 'Missing primary parent ID and/or type';
4100 # fail early if we don't have a "prime" ID to look for log entries for
4101 return if !$args{id};
4102
4103 # or if the prime id type is missing or invalid
4104 return if !$args{logtype};
4105 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4106 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4107 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4108
4109 my $sql = "SELECT count(*) FROM log ".
4110 "WHERE $id_col{$args{logtype}}=?".
4111 ($args{filter} ? " AND entry ~* ?" : '');
4112 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
4113 $errstr = $dbh->errstr if !$count;
4114 return $count;
4115} # end getLogCount()
4116
4117
4118## DNSDB::getLogEntries()
4119# Get a list of log entries
4120# Takes arguments as with getLogCount() above, plus optional:
4121# - sort field
4122# - sort order
4123# - offset for pagination
4124sub getLogEntries {
4125 my $self = shift;
4126 my $dbh = $self->{dbh};
4127
4128 my %args = @_;
4129
4130 my @filterargs;
4131
4132 # fail early if we don't have a "prime" ID to look for log entries for
4133 return if !$args{id};
4134
4135 # or if the prime id type is missing or invalid
4136 return if !$args{logtype};
4137 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
4138 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
4139 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
4140
4141 # Sorting defaults
4142 $args{sortorder} = 'DESC' if !$args{sortorder} || !grep /^$args{sortorder}$/, ('ASC','DESC');
4143 $args{sortby} = 'stamp' if !$args{sortby} || $args{sortby} !~ /^[\w_.]+$/;
4144 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
4145
4146 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
4147 $args{sortby} = $sortmap{$args{sortby}};
4148
4149 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
4150 "date_trunc('second',stamp) AS logtime ".
4151 "FROM log ".
4152 "WHERE $id_col{$args{logtype}}=?".
4153 ($args{filter} ? " AND entry ~* ?" : '').
4154 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
4155 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
4156 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
4157 $errstr = $dbh->errstr if !$loglist;
4158 return $loglist;
4159} # end getLogEntries()
4160
4161
4162## IPDB::getRevPattern()
4163# Get the narrowest template pattern applicable to a passed CIDR address (may be a netblock or an IP)
4164sub getRevPattern {
4165 my $self = shift;
4166 my $dbh = $self->{dbh};
4167 my $cidr = shift;
4168 my $group = shift || 1; # just in case
4169
4170 # for speed! Casting and comparing even ~7K records takes ~2.5s, so narrow it down to one revzone first.
4171 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ? AND group_id = ?",
4172 undef, ($cidr, $group) );
4173
4174##fixme? may need to narrow things down more by octet-chopping and doing text comparisons before casting.
4175 my ($revpatt) = $dbh->selectrow_array("SELECT host FROM records ".
4176 "WHERE (type in (12,65280,65281,65282,65283,65284)) AND rdns_id = ? AND CAST (val AS inet) >>= ? ".
4177 "ORDER BY CAST (val AS inet) DESC LIMIT 1", undef, ($revid, $cidr) );
4178 return $revpatt;
4179} # end getRevPattern()
4180
4181
4182## DNSDB::getTypelist()
4183# Get a list of record types for various UI dropdowns
4184# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
4185# Returns an arrayref to list of hashrefs perfect for HTML::Template
4186sub getTypelist {
4187 my $self = shift;
4188 my $dbh = $self->{dbh};
4189 my $recgroup = shift;
4190 my $type = shift || $reverse_typemap{A};
4191
4192 # also accepting $webvar{revrec}!
4193 $recgroup = 'f' if $recgroup eq 'n';
4194 $recgroup = 'r' if $recgroup eq 'y';
4195
4196 my $sql = "SELECT val,name FROM rectypes WHERE ";
4197 if ($recgroup eq 'r') {
4198 # reverse zone types
4199 $sql .= "stdflag=2 OR stdflag=3";
4200 } elsif ($recgroup eq 'l') {
4201 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
4202 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
4203 } else {
4204 # default; forward zone types. technically $type eq 'f' but not worth the error message.
4205 $sql .= "stdflag=1 OR stdflag=2";
4206 $sql .= " AND val < 65280" if $recgroup eq 'fo'; # An extra flag to trim off the pseudotypes as well.
4207 }
4208 $sql .= " ORDER BY listorder";
4209
4210 my $sth = $dbh->prepare($sql);
4211 $sth->execute;
4212 my @typelist;
4213 while (my ($rval,$rname) = $sth->fetchrow_array()) {
4214 my %row = ( recval => $rval, recname => $rname );
4215 $row{tselect} = 1 if $rval == $type;
4216 push @typelist, \%row;
4217 }
4218
4219 # Add SOA on lookups since it's not listed in other dropdowns.
4220 if ($recgroup eq 'l') {
4221 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
4222 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
4223 push @typelist, \%row;
4224 }
4225
4226 return \@typelist;
4227} # end getTypelist()
4228
4229
4230## DNSDB::parentID()
4231# Get ID of entity that is nearest parent to requested id
4232# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
4233# (domain/reverse zone or group), and optional default/live and forward/reverse flags
4234# Returns the ID or undef on failure
4235sub parentID {
4236 my $self = shift;
4237 my $dbh = $self->{dbh};
4238
4239 my %args = @_;
4240
4241 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
4242 $args{partype} = 'group' if !$args{partype};
4243 $args{partype} = 'domain' if $args{partype} eq 'revzone';
4244
4245 # clean up defrec and revrec. default to live record, forward zone
4246 $args{defrec} = 'n' if !$args{defrec};
4247 $args{revrec} = 'n' if !$args{revrec};
4248
4249 if ($par_type{$args{partype}} eq 'domain') {
4250 # only live records can have a domain/zone parent
4251 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
4252 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4253 " FROM records WHERE record_id = ?",
4254 undef, ($args{id}) ) or return;
4255 return $result;
4256 } else {
4257 # snag some arguments that will either fall through or be overwritten to save some code duplication
4258 my $tmpid = $args{id};
4259 my $type = $args{type};
4260 if ($type eq 'record' && $args{defrec} eq 'n') {
4261 # Live records go through the records table first.
4262 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
4263 " FROM records WHERE record_id = ?",
4264 undef, ($args{id}) ) or return;
4265 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
4266 }
4267 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4268 undef, ($tmpid) );
4269 return $result;
4270 }
4271# should be impossible to get here with even remotely sane arguments
4272 return;
4273} # end parentID()
4274
4275
4276## DNSDB::isParent()
4277# Returns true if $id1 is a parent of $id2, false otherwise
4278sub isParent {
4279 my $self = shift;
4280 my $dbh = $self->{dbh};
4281 my $id1 = shift;
4282 my $type1 = shift;
4283 my $id2 = shift;
4284 my $type2 = shift;
4285##todo: immediate, secondary, full (default)
4286
4287 # Return false on invalid types
4288 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4289 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4290
4291 # Return false on impossible relations
4292 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4293 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4294 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4295 return 0 if $type1 eq 'user'; # nothing may be child of a user
4296 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4297 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4298
4299 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4300 # case would be the UI creating a new <thing>, and so we don't have an ID for
4301 # <thing> to look up yet. in that case the UI should check the parent as well.
4302 return 0 if $id1 == 0; # nothing can have a parent id of 0
4303 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4304
4305 # group 1 is the ultimate root parent
4306 return 1 if $type1 eq 'group' && $id1 == 1;
4307
4308 # groups are always (a) parent of themselves
4309 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4310
4311 my $id = $id2;
4312 my $type = $type2;
4313 my $foundparent = 0;
4314
4315 # Records are the only entity with two possible parents. We need to split the parent checks on
4316 # domain/rdns.
4317 if ($type eq 'record') {
4318 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4319 undef, ($id));
4320 # check immediate parent against request
4321 return 1 if $type1 eq 'domain' && $id1 == $dom;
4322 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4323 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4324 return 1 if $dom && $self->isParent($id1, $type1, $dom, 'domain');
4325 return 1 if $rdns && $self->isParent($id1, $type1, $rdns, 'revzone');
4326 # exit here since we've executed the loop below by proxy in the above recursive calls.
4327 return 0;
4328 }
4329
4330# almost the same loop as getParents() above
4331 my $limiter = 0;
4332 while (1) {
4333 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4334 my $result = $dbh->selectrow_hashref($sql,
4335 undef, ($id) );
4336 if (!$result) {
4337 $limiter++;
4338##fixme: how often will this happen on a live site? fail at max limiter <n>?
4339 warn "no results looking for $sql with id $id (depth $limiter)\n";
4340 last;
4341 }
4342 if ($result && $result->{$par_col{$type}} == $id1) {
4343 $foundparent = 1;
4344 last;
4345 } else {
4346##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4347# should be impossible to create an inconsistent DB just with API calls.
4348 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4349 }
4350 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4351 last if $result->{$par_col{$type}} == 1;
4352 $id = $result->{$par_col{$type}};
4353 $type = $par_type{$type};
4354 }
4355
4356 return $foundparent;
4357} # end isParent()
4358
4359
4360## DNSDB::zoneStatus()
4361# Returns and optionally sets a zone's status
4362# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4363# Returns status, or undef on errors.
4364sub zoneStatus {
4365 my $self = shift;
4366 my $dbh = $self->{dbh};
4367 my $id = shift;
4368 my $revrec = shift;
4369 my $newstatus = shift || 'mu';
4370
4371 return undef if $id !~ /^\d+$/;
4372
4373 # Allow transactions, and raise an exception on errors so we can catch it later.
4374 # Use local to make sure these get "reset" properly on exiting this block
4375 local $dbh->{AutoCommit} = 0;
4376 local $dbh->{RaiseError} = 1;
4377
4378 if ($newstatus ne 'mu') {
4379 # ooo, fun! let's see what we were passed for status
4380 eval {
4381 $newstatus = 0 if $newstatus eq 'domoff';
4382 $newstatus = 1 if $newstatus eq 'domon';
4383 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4384 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4385
4386##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4387 $resultstr = "Changed ".($revrec eq 'n' ? $self->domainName($id) : $self->revName($id)).
4388 " state to ".($newstatus ? 'active' : 'inactive');
4389
4390 my %loghash;
4391 $loghash{domain_id} = $id if $revrec eq 'n';
4392 $loghash{rdns_id} = $id if $revrec eq 'y';
4393 $loghash{group_id} = $self->parentID(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec);
4394 $loghash{entry} = $resultstr;
4395 $self->_log(%loghash);
4396
4397 $dbh->commit;
4398 };
4399 if ($@) {
4400 my $msg = $@;
4401 eval { $dbh->rollback; };
4402 $resultstr = '';
4403 $errstr = $msg;
4404 return;
4405 }
4406 }
4407
4408 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4409 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4410 undef, ($id) );
4411 return $status;
4412} # end zoneStatus()
4413
4414
4415## DNSDB::getZonesByCIDR()
4416# Get a list of zone names and IDs that records for a passed CIDR block are within.
4417sub getZonesByCIDR {
4418 my $self = shift;
4419 my $dbh = $self->{dbh};
4420 my %args = @_;
4421
4422 my $result = $dbh->selectall_arrayref("SELECT rdns_id,revnet FROM revzones WHERE revnet >>= ? OR revnet <<= ?",
4423 { Slice => {} }, ($args{cidr}, $args{cidr}) );
4424 return $result;
4425} # end getZonesByCIDR()
4426
4427
4428## DNSDB::importAXFR
4429# Import a domain via AXFR
4430# Takes AXFR host, domain to transfer, group to put the domain in,
4431# and an optional hash containing:
4432# status - active/inactive state flag (defaults to active)
4433# rwsoa - overwrite-SOA flag (defaults to off)
4434# rwns - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4435# merge - flag to automerge A or AAAA records with matching PTR records
4436# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4437# if status is OK, but WARN includes conditions that are not fatal but should
4438# really be reported.
4439sub importAXFR {
4440 my $self = shift;
4441 my $dbh = $self->{dbh};
4442 my $ifrom_in = shift;
4443 my $zone = shift;
4444 my $group = shift;
4445
4446 my %args = @_;
4447
4448##fixme: add mode to delete&replace, merge+overwrite, merge new?
4449
4450 $args{status} = (defined($args{status}) ? $args{status} : 0);
4451 $args{status} = 1 if $args{status} eq 'on';
4452
4453 my $nrecs = 0;
4454 my $soaflag = 0;
4455 my $nsflag = 0;
4456 my $warnmsg = '';
4457 my $ifrom;
4458
4459 my $rev = 'n';
4460 my $code = 'OK';
4461 my $msg = 'foobar?';
4462
4463 # choke on possible bad setting in ifrom
4464 # IPv4 and v6, and valid hostnames!
4465 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4466 return ('FAIL', "Bad AXFR source host $ifrom")
4467 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4468
4469 my $errmsg;
4470
4471 my $zone_id;
4472 my $domain_id = 0;
4473 my $rdns_id = 0;
4474 my $cidr;
4475
4476# magic happens! detect if we're importing a domain or a reverse zone
4477# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
4478# or what the formal .arpa zone is (if we got a CIDR netblock)
4479# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
4480
4481 if ($zone =~ m{(?:\.arpa\.?|/\d+)$}) {
4482 # we seem to have a reverse zone
4483 $rev = 'y';
4484
4485 if ($zone =~ /\.arpa\.?$/) {
4486 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
4487 ($code,$msg) = _zone2cidr($zone);
4488 return ($code, $msg) if $code eq 'FAIL';
4489 $cidr = $msg;
4490 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
4491 # v4 revzone, CIDR netblock
4492 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4493 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4494 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
4495 # v6 revzone, CIDR netblock
4496 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4497 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
4498 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4499 } else {
4500 # there is. no. else!
4501 return ('FAIL', "Unknown zone name format");
4502 }
4503
4504 # quick check to start to see if we've already got one
4505
4506 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
4507 undef, ("$cidr"));
4508 $rdns_id = $zone_id;
4509 } else {
4510 # default to domain
4511 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
4512 undef, ($zone));
4513 $domain_id = $zone_id;
4514 }
4515
4516 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
4517
4518 # little local utility sub to swap $val and $host for revzone records.
4519 sub _revswap {
4520 my $rechost = shift;
4521 my $recdata = shift;
4522
4523 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
4524 $rechost =~ s/\.in-addr\.arpa\.?$//;
4525 $rechost = join '.', reverse split /\./, $rechost;
4526 } else {
4527 $rechost =~ s/\.ip6\.arpa\.?$//;
4528 my @nibs = reverse split /\./, $rechost;
4529 $rechost = '';
4530 my $nc;
4531 foreach (@nibs) {
4532 $rechost.= $_;
4533 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
4534 }
4535 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
4536##fixme: there's a case that ends up with a partial entry here:
4537# ip:add:re:ss::
4538# can't reproduce after letting it sit overnight after discovery. :(
4539#print "$rechost\n";
4540 # canonicalize with NetAddr::IP
4541 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
4542 }
4543 return ($recdata,$rechost)
4544 }
4545
4546
4547 # Allow transactions, and raise an exception on errors so we can catch it later.
4548 # Use local to make sure these get "reset" properly on exiting this block
4549 local $dbh->{AutoCommit} = 0;
4550 local $dbh->{RaiseError} = 1;
4551
4552 my $sth;
4553 eval {
4554
4555 if ($rev eq 'n') {
4556##fixme: serial
4557 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef,
4558 ($zone, $group, $args{status}) );
4559 # get domain id so we can do the records
4560 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
4561 $domain_id = $zone_id;
4562 $self->_log(group_id => $group, domain_id => $domain_id,
4563 entry => "[Added ".($args{status} ? 'active' : 'inactive')." domain $zone via AXFR]");
4564 } else {
4565##fixme: serial
4566 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef,
4567 ($cidr,$group,$args{status}) );
4568 # get revzone id so we can do the records
4569 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
4570 $rdns_id = $zone_id;
4571 $self->_log(group_id => $group, rdns_id => $rdns_id,
4572 entry => "[Added ".($args{status} ? 'active' : 'inactive')." reverse zone $cidr via AXFR]");
4573 }
4574
4575## bizarre DBI<->Net::DNS interaction bug:
4576## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
4577## fixed, apparently I was doing *something* odd, but not certain what it was that
4578## caused a commit instead of barfing
4579
4580 my $res = Net::DNS::Resolver->new;
4581 $res->nameservers($ifrom);
4582 $res->axfr_start($zone)
4583 or die "Couldn't begin AXFR\n";
4584
4585 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
4586 " VALUES (?,?,?,?,?,?,?,?,?)");
4587
4588 # Stash info about sub-octet v4 revzones here so we don't have
4589 # to store the CNAMEs used to delegate a suboctet zone
4590 # $suboct{zone}{ns}[] -> array of nameservers
4591 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
4592## commented pending actual use of this data. for now, we'll just
4593## auto-(re)create the CNAMEs in revzones on export
4594# my %suboct;
4595
4596 while (my $rr = $res->axfr_next()) {
4597
4598 my $val;
4599 my $distance = 0;
4600 my $weight = 0;
4601 my $port = 0;
4602 my $logfrag = '';
4603
4604 my $type = $rr->type;
4605 my $host = $rr->name;
4606 my $ttl = ($args{newttl} ? $args{newttl} : $rr->ttl); # allow force-override TTLs
4607
4608 $soaflag = 1 if $type eq 'SOA';
4609 $nsflag = 1 if $type eq 'NS';
4610
4611# "Primary" types:
4612# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
4613# maybe KEY
4614
4615# BIND supports:
4616# [standard]
4617# A AAAA CNAME MX NS PTR SOA TXT
4618# [variously experimental, obsolete, or obscure]
4619# 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
4620# ... if one can ever find the right magic to format them correctly
4621
4622# Net::DNS supports:
4623# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
4624# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
4625# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
4626
4627# nasty big ugly case-like thing here, since we have to do *some* different
4628# processing depending on the record. le sigh.
4629
4630##fixme: what record types other than TXT can/will have >255-byte payloads?
4631
4632 if ($type eq 'A') {
4633 $val = $rr->address;
4634 } elsif ($type eq 'NS') {
4635# hmm. should we warn here if subdomain NS'es are left alone?
4636 next if ($args{rwns} && ($rr->name eq $zone));
4637 if ($rev eq 'y') {
4638 # revzones have records more or less reversed from forward zones.
4639 my ($tmpcode,$tmpmsg) = _zone2cidr($host);
4640 die "Error converting NS record: $tmpmsg\n" if $tmpcode eq 'FAIL'; # hmm. may not make sense...
4641 $val = "$tmpmsg";
4642 $host = $rr->nsdname;
4643 $logfrag = "Added record '$val $type $host', TTL $ttl";
4644# Tag and preserve. For now this is commented for a no-op, but we have Ideas for
4645# another custom storage type ("DELEGATE") that will use these subzone-delegation records
4646#if ($val ne "$cidr") {
4647# push @{$suboct{$val}{ns}}, $host;
4648#}
4649 } else {
4650 $val = $rr->nsdname;
4651 }
4652 $nsflag = 1;
4653 } elsif ($type eq 'CNAME') {
4654 if ($rev eq 'y') {
4655 # hmm. do we even want to bother with storing these at this level? Sub-octet delegation
4656 # by CNAME is essentially a record-publication hack, and we want to just represent the
4657 # "true" logical intentions as far down the stack as we can from the UI.
4658 ($host,$val) = _revswap($host,$rr->cname);
4659 $logfrag = "Added record '$val $type $host', TTL $ttl";
4660# Tag and preserve in case we want to commit them as-is later, but mostly we don't care.
4661# Commented pending actually doing something with possibly new type DELEGATE
4662#my $tmprev = $host;
4663#$tmprev =~ s/^\d+\.//;
4664#($code,$tmprev) = _zone2cidr($tmprev);
4665#push @{$suboct{"$tmprev"}{cname}}, $val;
4666 # Silently skip CNAMEs in revzones.
4667 next;
4668 } else {
4669 $val = $rr->cname;
4670 }
4671 } elsif ($type eq 'SOA') {
4672 next if $args{rwsoa};
4673 $host = $rr->rname.":".$rr->mname;
4674 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
4675 $soaflag = 1;
4676 } elsif ($type eq 'PTR') {
4677 ($host,$val) = _revswap($host,$rr->ptrdname);
4678 $logfrag = "Added record '$val $type $host', TTL $ttl";
4679 # hmm. PTR records should not be in forward zones.
4680 } elsif ($type eq 'MX') {
4681 $val = $rr->exchange;
4682 $distance = $rr->preference;
4683 } elsif ($type eq 'TXT') {
4684##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
4685## but don't really seem enthusiastic about it.
4686#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
4687# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
4688# char_str_list returns a list of the individual string fragments in the record
4689# txtdata returns the more useful all-in-one form (since we want to push such protocol
4690# details as far down the stack as we can)
4691# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
4692 if ($rev eq 'y') {
4693 ($host,$val) = _revswap($host,$rr->txtdata);
4694 $logfrag = "Added record '$val $type $host', TTL $ttl";
4695 } else {
4696 $val = $rr->txtdata;
4697 }
4698 } elsif ($type eq 'SPF') {
4699##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4700 $val = $rr->txtdata;
4701 } elsif ($type eq 'AAAA') {
4702 $val = $rr->address;
4703 } elsif ($type eq 'SRV') {
4704 $val = $rr->target;
4705 $distance = $rr->priority;
4706 $weight = $rr->weight;
4707 $port = $rr->port;
4708 } elsif ($type eq 'KEY') {
4709 # we don't actually know what to do with these...
4710 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4711 } else {
4712 $val = $rr->rdatastr;
4713 # Finding a different record type is not fatal.... just problematic.
4714 # We may not be able to export it correctly.
4715 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4716 }
4717
4718 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
4719
4720 if ($args{merge}) {
4721 if ($rev eq 'n') {
4722 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
4723 my $etype;
4724 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
4725 "WHERE host=? AND val=? AND type=12",
4726 undef, ($host, $val) );
4727 if ($erid) {
4728 if ($type eq 'A') { # PTR -> A+PTR
4729 $etype = 65280;
4730 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
4731 }
4732 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
4733 $etype = 65281;
4734 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
4735 }
4736 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4737 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
4738 ($domain_id, $ettl, $etype, $erid));
4739 $nrecs++;
4740 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry);
4741 next; # while axfr_next
4742 }
4743 } # $rev eq 'n'
4744 else {
4745 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
4746 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
4747 "WHERE host=? AND val=? AND (type=1 OR type=28)",
4748 undef, ($host, $val) );
4749 if ($erid) {
4750 if ($etype == 1) { # A -> A+PTR
4751 $etype = 65280;
4752 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
4753 }
4754 if ($etype == 28) { # AAAA -> AAAA+PTR
4755 $etype = 65281;
4756 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
4757 }
4758 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4759 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
4760 ($rdns_id, $ettl, $etype, $erid));
4761 $nrecs++;
4762 $self->_log(group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry);
4763 next; # while axfr_next
4764 }
4765 } # $rev eq 'y'
4766 } # if $args{merge}
4767
4768 # Insert the new record
4769 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
4770 $distance, $weight, $port, $ttl);
4771
4772 $nrecs++;
4773
4774 if ($type eq 'SOA') {
4775 # also !$args{rwsoa}, but if that's set, it should be impossible to get here.
4776 my @tmp1 = split /:/, $host;
4777 my @tmp2 = split /:/, $val;
4778 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
4779 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
4780 } elsif ($logfrag) {
4781 # special case for log entries we need to meddle with a little.
4782 $logentry .= $logfrag;
4783 } else {
4784 $logentry .= "Added record '$host $type";
4785 $logentry .= " [distance $distance]" if $type eq 'MX';
4786 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
4787 $logentry .= " $val', TTL $ttl";
4788 }
4789 $self->_log(group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry);
4790
4791 } # while axfr_next
4792
4793# Detect and handle delegated subzones
4794# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
4795#foreach (keys %suboct) {
4796# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
4797# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
4798#}
4799
4800 # Overwrite SOA record
4801 if ($args{rwsoa}) {
4802 $soaflag = 1;
4803 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4804 my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4805 $sthgetsoa->execute($group,$reverse_typemap{SOA});
4806 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
4807 $host =~ s/DOMAIN/$zone/g;
4808 $val =~ s/DOMAIN/$zone/g;
4809 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
4810 }
4811 }
4812
4813 # Overwrite NS records
4814 if ($args{rwns}) {
4815 $nsflag = 1;
4816 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4817 my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4818 $sthgetns->execute($group,$reverse_typemap{NS});
4819 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
4820 $host =~ s/DOMAIN/$zone/g;
4821 $val =~ s/DOMAIN/$zone/g;
4822 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
4823 }
4824 }
4825
4826 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
4827 die "Bad zone: No SOA record!\n" if !$soaflag;
4828 die "Bad zone: No NS records!\n" if !$nsflag;
4829
4830 $dbh->commit;
4831
4832 };
4833
4834 if ($@) {
4835 my $msg = $@;
4836 eval { $dbh->rollback; };
4837 return ('FAIL',$msg." $warnmsg");
4838 } else {
4839 return ('WARN', $warnmsg) if $warnmsg;
4840 return ('OK',"Imported OK");
4841 }
4842
4843 # it should be impossible to get here.
4844 return ('WARN',"OOOK!");
4845} # end importAXFR()
4846
4847
4848## DNSDB::importBIND()
4849sub importBIND {
4850} # end importBIND()
4851
4852
4853## DNSDB::import_tinydns()
4854sub import_tinydns {
4855} # end import_tinydns()
4856
4857
4858## DNSDB::export()
4859# Export the DNS database, or a part of it
4860# Takes a string indicating the export type, plus optional arguments depending on type
4861# Writes zone data to targets as appropriate for type
4862sub export {
4863 my $self = shift;
4864 my $target = shift;
4865
4866 if ($target eq 'tiny') {
4867 $self->__export_tiny(@_);
4868 }
4869# elsif ($target eq 'foo') {
4870# __export_foo(@_);
4871#}
4872# etc
4873
4874} # end export()
4875
4876
4877## DNSDB::__export_tiny
4878# Internal sub to implement tinyDNS (compatible) export
4879# Takes filehandle to write export to, optional argument(s)
4880# to determine which data gets exported
4881sub __export_tiny {
4882 my $self = shift;
4883 my $dbh = $self->{dbh};
4884 my $datafile = shift;
4885
4886##fixme: slurp up further options to specify particular zone(s) to export
4887
4888##fixme: fail if $datafile isn't an open, writable file
4889
4890 # easy case - export all evarything
4891 # not-so-easy case - export item(s) specified
4892 # todo: figure out what kind of list we use to export items
4893
4894# raw packet in unknown format: first byte indicates length
4895# of remaining data, allows up to 255 raw bytes
4896
4897 # Locations/views - worth including in the caching setup?
4898 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
4899 foreach my $location (keys %$lochash) {
4900 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
4901 $ipprefix =~ s/\s+//g;
4902 $ipprefix = new NetAddr::IP $ipprefix;
4903##fixme: how to handle IPv6?
4904next if $ipprefix->{isv6};
4905 # have to account for /nn CIDR entries. tinydns only speaks octet-sliced prefix.
4906 if ($ipprefix->masklen <= 8) {
4907 foreach ($ipprefix->split(8)) {
4908 my $tmp = $_->addr;
4909 $tmp =~ s/\.\d+\.\d+\.\d+$//;
4910 print $datafile "%$location:$tmp\n";
4911 }
4912 } elsif ($ipprefix->masklen <= 16) {
4913 foreach ($ipprefix->split(16)) {
4914 my $tmp = $_->addr;
4915 $tmp =~ s/\.\d+\.\d+$//;
4916 print $datafile "%$location:$tmp\n";
4917 }
4918 } elsif ($ipprefix->masklen <= 24) {
4919 foreach ($ipprefix->split(24)) {
4920 my $tmp = $_->addr;
4921 $tmp =~ s/\.\d+$//;
4922 print $datafile "%$location:$tmp\n";
4923 }
4924 } else {
4925 foreach ($ipprefix->split(32)) {
4926 print $datafile "%$location:".$_->addr."\n";
4927 }
4928 }
4929 }
4930 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
4931 }
4932
4933 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
4934 my %recflags;
4935
4936 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1");
4937 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
4938 "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
4939 my $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
4940 $domsth->execute();
4941 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
4942##fixme: need to find a way to block opening symlinked files without introducing a race.
4943# O_NOFOLLOW
4944# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
4945# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
4946# still be followed.
4947# but that doesn't help other platforms. :/
4948 sysopen(ZONECACHE, "$config{exportcache}/$dom", O_RDWR|O_CREAT);
4949 flock(ZONECACHE, LOCK_EX);
4950 if ($changed || -s "$config{exportcache}/$dom" == 0) {
4951 $recsth->execute($domid);
4952 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc) = $recsth->fetchrow_array) {
4953 next if $recflags{$recid};
4954
4955 $loc = '' if !$loc; # de-nullify - just in case
4956##fixme: handle case of record-with-location-that-doesn't-exist better.
4957# note this currently fails safe (tested) - records with a location that
4958# doesn't exist will not be sent to any client
4959# $loc = '' if !$lochash->{$loc};
4960
4961##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4962# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4963# timestamps are TAI64
4964# ~~ 2^62 + time()
4965 my $stamp = '';
4966
4967 # support tinydns' auto-TTL
4968 $ttl = '' if $ttl == '0';
4969
4970 # Spaces are evil.
4971 $host =~ s/^\s+//;
4972 $host =~ s/\s+$//;
4973 if ($typemap{$type} ne 'TXT') {
4974 # Leading or trailng spaces could be legit in TXT records.
4975 $val =~ s/^\s+//;
4976 $val =~ s/\s+$//;
4977 }
4978
4979 _printrec_tiny(*ZONECACHE, 'n', \%recflags,
4980 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp)
4981 if *ZONECACHE;
4982
4983 # in case the zone shrunk, get rid of garbage at the end of the file.
4984 truncate(ZONECACHE, tell(ZONECACHE));
4985
4986 $recflags{$recid} = 1;
4987 } # while ($recsth)
4988 }
4989 # stream from cache, whether freshly created or existing
4990 print $datafile $_ while <ZONECACHE>;
4991 close ZONECACHE;
4992 # mark domain as unmodified
4993 $zonesth->execute($domid);
4994 } # while ($domsth)
4995
4996 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
4997 "ORDER BY masklen(revnet) DESC");
4998
4999# For reasons unknown, we can't sanely UNION these statements. Feh.
5000# Supposedly it should work though (note last 3 lines):
5001## PG manual
5002#UNION Clause
5003#
5004#The UNION clause has this general form:
5005#
5006# select_statement UNION [ ALL ] select_statement
5007#
5008#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
5009#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
5010#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
5011 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5012 "FROM records WHERE rdns_id=? AND type=6");
5013 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
5014 "FROM records WHERE rdns_id=? AND not type=6 ".
5015 "ORDER BY masklen(CAST(val AS inet)) DESC, CAST(val AS inet)");
5016 $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
5017 $revsth->execute();
5018 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
5019##fixme: need to find a way to block opening symlinked files without introducing a race.
5020# O_NOFOLLOW
5021# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
5022# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
5023# still be followed.
5024# but that doesn't help other platforms. :/
5025 my $tmpzone = NetAddr::IP->new($revzone);
5026 sysopen(ZONECACHE, "$config{exportcache}/".$tmpzone->network->addr, O_RDWR|O_CREAT);
5027 flock(ZONECACHE, LOCK_EX);
5028 if ($changed || -s "$config{exportcache}/".$tmpzone->network->addr == 0) {
5029 # need to fetch this separately since the rest of the records all (should) have real IPs in val
5030 $soasth->execute($revid);
5031 my (@zsoa) = $soasth->fetchrow_array();
5032 _printrec_tiny(*ZONECACHE,'y',\%recflags,$revzone,
5033 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
5034
5035 $recsth->execute($revid);
5036 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc) = $recsth->fetchrow_array) {
5037 next if $recflags{$recid};
5038
5039 $loc = '' if !$loc; # de-nullify - just in case
5040##fixme: handle case of record-with-location-that-doesn't-exist better.
5041# note this currently fails safe (tested) - records with a location that
5042# doesn't exist will not be sent to any client
5043# $loc = '' if !$lochash->{$loc};
5044
5045##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
5046# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
5047# timestamps are TAI64
5048# ~~ 2^62 + time()
5049 my $stamp = '';
5050
5051 # support tinydns' auto-TTL
5052 $ttl = '' if $ttl == '0';
5053
5054 _printrec_tiny(*ZONECACHE, 'y', \%recflags, $revzone,
5055 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp)
5056 if *ZONECACHE;
5057
5058 # in case the zone shrunk, get rid of garbage at the end of the file.
5059 truncate(ZONECACHE, tell(ZONECACHE));
5060
5061 $recflags{$recid} = 1;
5062 } # while ($recsth)
5063 }
5064 # stream from cache, whether freshly created or existing
5065 print $datafile $_ while <ZONECACHE>;
5066 close ZONECACHE;
5067 # mark zone as unmodified
5068 $zonesth->execute($revid);
5069 } # while ($domsth)
5070
5071} # end __export_tiny()
5072
5073
5074# Utility sub for __export_tiny above
5075sub _printrec_tiny {
5076 my ($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp) = @_;
5077
5078 ## Convert a bare number into an octal-coded pair of octets.
5079 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
5080 sub octalize {
5081 my $tmp = shift;
5082 my $srctype = shift || 'h'; # default assumes hex string
5083 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
5084 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
5085 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
5086 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
5087 }
5088
5089## WARNING: This works to export even the whole Internet's worth of IP space...
5090## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
5091## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
5092## 0/0 is estimated to take ~54 hours and ~256G of disk
5093## RAM usage depends on how many non-template entries you have in the set.
5094## This should probably be done on record addition rather than export; large blocks may need to be done in a
5095## forked process
5096 sub __publish_subnet {
5097 my $sub = shift;
5098 my $recflags = shift;
5099 my $hpat = shift;
5100 my $fh = shift;
5101 my $ttl = shift;
5102 my $stamp = shift;
5103 my $loc = shift;
5104 my $ptronly = shift || 0;
5105
5106 my $iplist = $sub->splitref(32);
5107 foreach (@$iplist) {
5108 my $ip = $_->addr;
5109 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
5110 next if $ip =~ /\.(0|255)$/;
5111 next if $$recflags{$ip};
5112 $$recflags{$ip}++;
5113 next if $hpat eq '%blank%'; # Allows blanking a subnet so no records are published.
5114 my $rec = $hpat; # start fresh with the template for each IP
5115 _template4_expand(\$rec, $ip);
5116 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
5117 ":$ttl:$stamp:$loc\n";
5118 }
5119 }
5120
5121##fixme? append . to all host/val hostnames
5122 if ($typemap{$type} eq 'SOA') {
5123
5124 # host contains pri-ns:responsible
5125 # val is abused to contain refresh:retry:expire:minttl
5126##fixme: "manual" serial vs tinydns-autoserial
5127 # let's be explicit about abusing $host and $val
5128 my ($email, $primary) = (split /:/, $host)[0,1];
5129 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
5130 if ($revrec eq 'y') {
5131##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
5132# what about v6?
5133# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
5134 $zone = NetAddr::IP->new($zone);
5135 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5136 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
5137 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
5138 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5139 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
5140 }
5141 return; # skips "default" bits just below
5142 }
5143 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5144 }
5145 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
5146
5147 } elsif ($typemap{$type} eq 'A') {
5148
5149 print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
5150
5151 } elsif ($typemap{$type} eq 'NS') {
5152
5153 if ($revrec eq 'y') {
5154 $val = NetAddr::IP->new($val);
5155 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
5156 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
5157 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
5158 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
5159 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5160 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n";
5161 $$recflags{$szone2} = $val->masklen;
5162 }
5163 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
5164 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
5165 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
5166 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
5167 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n";
5168 $$recflags{$szone2} = $val->masklen;
5169 }
5170 } else {
5171 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
5172 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n";
5173 $$recflags{$val2} = $val->masklen;
5174 }
5175 } else {
5176 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
5177 }
5178
5179 } elsif ($typemap{$type} eq 'AAAA') {
5180
5181 print $datafile ":$host:28:";
5182 my $altgrp = 0;
5183 my @altconv;
5184 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
5185 foreach (split /:/, $val) {
5186 if (/^$/) {
5187 # flag blank entry; this is a series of 0's of (currently) unknown length
5188 $altconv[$altgrp++] = 's';
5189 } else {
5190 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
5191 $altconv[$altgrp++] = octalize($_)
5192 }
5193 }
5194 foreach my $octet (@altconv) {
5195 # if not 's', output
5196 print $datafile $octet unless $octet =~ /^s$/;
5197 # if 's', output (9-array length)x literal '\000\000'
5198 print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
5199 }
5200 print $datafile ":$ttl:$stamp:$loc\n";
5201
5202 } elsif ($typemap{$type} eq 'MX') {
5203
5204 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
5205
5206 } elsif ($typemap{$type} eq 'TXT') {
5207
5208##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
5209 if ($revrec eq 'n') {
5210 $val =~ s/:/\\072/g; # may need to replace other symbols
5211 print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
5212 } else {
5213 $host =~ s/:/\\072/g; # may need to replace other symbols
5214 my $val2 = NetAddr::IP->new($val);
5215 print $datafile "'"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5216 ":$host:$ttl:$stamp:$loc\n";
5217 }
5218
5219# by-hand TXT
5220#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
5221#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
5222#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
5223
5224#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
5225#: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
5226
5227# very long TXT record as brought in by axfr-get
5228# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
5229# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
5230#:longtxt.deepnet.cx:16:
5231#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
5232#\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.
5233#\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.
5234#:3600
5235
5236 } elsif ($typemap{$type} eq 'CNAME') {
5237
5238 if ($revrec eq 'n') {
5239 print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
5240 } else {
5241 my $val2 = NetAddr::IP->new($val);
5242 print $datafile "C"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5243 ":$host:$ttl:$stamp:$loc\n";
5244 }
5245
5246 } elsif ($typemap{$type} eq 'SRV') {
5247
5248 # data is two-byte values for priority, weight, port, in that order,
5249 # followed by length/string data
5250
5251 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
5252
5253 $val .= '.' if $val !~ /\.$/;
5254 foreach (split /\./, $val) {
5255 printf $datafile "\\%0.3o%s", length($_), $_;
5256 }
5257 print $datafile "\\000:$ttl:$stamp:$loc\n";
5258
5259 } elsif ($typemap{$type} eq 'RP') {
5260
5261 # RP consists of two mostly free-form strings.
5262 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
5263 # The second is the "hostname" of a TXT record with more info.
5264 print $datafile ":$host:17:";
5265 my ($who,$what) = split /\s/, $val;
5266 foreach (split /\./, $who) {
5267 printf $datafile "\\%0.3o%s", length($_), $_;
5268 }
5269 print $datafile '\000';
5270 foreach (split /\./, $what) {
5271 printf $datafile "\\%0.3o%s", length($_), $_;
5272 }
5273 print $datafile "\\000:$ttl:$stamp:$loc\n";
5274
5275 } elsif ($typemap{$type} eq 'PTR') {
5276
5277 $zone = NetAddr::IP->new($zone);
5278 $$recflags{$val}++;
5279 if (!$zone->{isv6} && $zone->masklen > 24) {
5280 ($val) = ($val =~ /\.(\d+)$/);
5281 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
5282 ":$host:ttl:$stamp:$loc\n";
5283 } else {
5284 $val = NetAddr::IP->new($val);
5285 print $datafile "^".
5286 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
5287 ":$host:$ttl:$stamp:$loc\n";
5288 }
5289
5290 } elsif ($type == 65280) { # A+PTR
5291
5292 $$recflags{$val}++;
5293 print $datafile "=$host:$val:$ttl:$stamp:$loc\n";
5294
5295 } elsif ($type == 65281) { # AAAA+PTR
5296
5297#$$recflags{$val}++;
5298 # treat these as two separate records. since tinydns doesn't have
5299 # a native combined type, we have to create them separately anyway.
5300 if ($revrec eq 'n') {
5301 $type = 28;
5302 } else {
5303 $type = 12;
5304 }
5305 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5306##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
5307# type 6 is for AAAA+PTR, type 3 is for AAAA
5308
5309 } elsif ($type == 65282) { # PTR template
5310
5311 # only useful for v4 with standard DNS software, since this expands all
5312 # IPs in $zone (or possibly $val?) with autogenerated records
5313 $val = NetAddr::IP->new($val);
5314 return if $val->{isv6};
5315
5316 if ($val->masklen <= 16) {
5317 foreach my $sub ($val->split(16)) {
5318 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5319 }
5320 } else {
5321 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5322 }
5323
5324 } elsif ($type == 65283) { # A+PTR template
5325
5326 $val = NetAddr::IP->new($val);
5327 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
5328 return if $val->{isv6};
5329
5330 if ($val->masklen <= 16) {
5331 foreach my $sub ($val->split(16)) {
5332 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5333 }
5334 } else {
5335 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5336 }
5337
5338 } elsif ($type == 65284) { # AAAA+PTR template
5339 # Stub for completeness. Could be exported to DNS software that supports
5340 # some degree of internal automagic in generic-record-creation
5341 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
5342
5343 } elsif ($type == 65285) { # Delegation
5344 # This is intended for reverse zones, but may prove useful in forward zones.
5345
5346 # All delegations need to create one or more NS records. The NS record handler knows what to do.
5347 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
5348 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
5349 if ($revrec eq 'y') {
5350 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
5351 # to redirect all of the individual IP lookups as well.
5352 # Not sure how this would actually resolve if a /24 or larger was delegated
5353 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
5354 my $dblock = NetAddr::IP->new($val);
5355 if (!$dblock->{isv6} && $dblock->masklen > 24) {
5356 my @subs = $dblock->split;
5357 foreach (@subs) {
5358 next if $$recflags{"$_"};
5359 my ($oct) = ($_->addr =~ /(\d+)$/);
5360 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
5361 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n";
5362 $$recflags{"$_"}++;
5363 }
5364 }
5365 }
5366
5367##
5368## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
5369##
5370
5371 } elsif ($type == 44) { # SSHFP
5372 my ($algo,$fpt,$fp) = split /\s+/, $val;
5373
5374 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
5375 while (my ($byte) = ($fp =~ /^(..)/) ) {
5376 $rec .= sprintf "\\%0.3o", hex($byte);
5377 $fp =~ s/^..//;
5378 }
5379 print $datafile "$rec:$ttl:$stamp:$loc\n";
5380
5381 } else {
5382 # raw record. we don't know what's in here, so we ASS-U-ME the user has
5383 # put it in correctly, since either the user is messing directly with the
5384 # database, or the record was imported via AXFR
5385 # <split by char>
5386 # convert anything not a-zA-Z0-9.- to octal coding
5387
5388##fixme: add flag to export "unknown" record types - note we'll probably end up
5389# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
5390 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
5391
5392 } # record type if-else
5393
5394} # end _printrec_tiny()
5395
5396
5397## DNSDB::mailNotify()
5398# Sends notification mail to recipients regarding a DNSDB operation
5399sub mailNotify {
5400 my $self = shift;
5401 my $dbh = $self->{dbh};
5402 my ($subj,$message) = @_;
5403
5404 return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
5405
5406 my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
5407
5408 my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
5409
5410 $mailer->mail($mailsender);
5411 $mailer->to($config{mailnotify});
5412 $mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
5413 "To: <$config{mailnotify}>\n",
5414 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
5415 "Subject: $subj\n",
5416 "X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
5417 "Organization: $config{orgname}\n",
5418 "\n$message\n");
5419 $mailer->quit;
5420}
5421
5422# shut Perl up
54231;
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