source: trunk/DNSDB.pm@ 445

Last change on this file since 445 was 445, checked in by Kris Deugau, 11 years ago

/trunk

Fix bug in export caching for reverse zones that somehow managed
to cause them to not be cached at all
  • Property svn:keywords set to Date Rev Author Id
File size: 182.3 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 445 2013-01-04 21:26:15Z kdeugau $
5# Copyright 2008-2012 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 &initPermissions &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 &getDomRecs &getRecCount
52 &addRec &updateRec &delRec
53 &getLogCount &getLogEntries
54 &getTypelist
55 &parentID
56 &isParent
57 &zoneStatus &importAXFR
58 &export
59 &mailNotify
60 %typemap %reverse_typemap %config
61 %permissions @permtypes $permlist %permchains
62 );
63
64@EXPORT = (); # Export nothing by default.
65%EXPORT_TAGS = ( ALL => [qw(
66 &initGlobals &login &initActionLog
67 &initPermissions &getPermissions &changePermissions &comparePermissions
68 &changeGroup
69 &loadConfig &connectDB &finish
70 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
71 &getZoneCount &getZoneList &getZoneLocation
72 &addGroup &delGroup &getChildren &groupName
73 &getGroupCount &getGroupList
74 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
75 &getUserCount &getUserList &getUserDropdown
76 &addLoc &updateLoc &delLoc &getLoc
77 &getLocCount &getLocList &getLocDropdown
78 &getSOA &updateSOA &getRecLine &getDomRecs &getRecCount
79 &addRec &updateRec &delRec
80 &getLogCount &getLogEntries
81 &getTypelist
82 &parentID
83 &isParent
84 &zoneStatus &importAXFR
85 &export
86 &mailNotify
87 %typemap %reverse_typemap %config
88 %permissions @permtypes $permlist %permchains
89 )]
90 );
91
92our $group = 1;
93our $errstr = '';
94our $resultstr = '';
95
96# Halfway sane defaults for SOA, TTL, etc.
97# serial defaults to 0 for convenience.
98# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
99our %def = qw (
100 contact hostmaster.DOMAIN
101 prins ns1.myserver.com
102 serial 0
103 soattl 86400
104 refresh 10800
105 retry 3600
106 expire 604800
107 minttl 10800
108 ttl 10800
109);
110
111# Arguably defined wholly in the db, but little reason to change without supporting code changes
112# group_view, user_view permissions? separate rDNS permission(s)?
113our @permtypes = qw (
114 group_edit group_create group_delete
115 user_edit user_create user_delete
116 domain_edit domain_create domain_delete
117 record_edit record_create record_delete record_locchg
118 location_edit location_create location_delete location_view
119 self_edit admin
120);
121our $permlist = join(',',@permtypes);
122
123# Some permissions more or less require certain others.
124our %permchains = (
125 user_edit => 'self_edit',
126 location_edit => 'location_view',
127 location_create => 'location_view',
128 location_delete => 'location_view',
129 record_locchg => 'location_view',
130);
131
132# DNS record type map and reverse map.
133# loaded from the database, from http://www.iana.org/assignments/dns-parameters
134our %typemap;
135our %reverse_typemap;
136
137our %permissions;
138
139# Prepopulate a basic config. Note some of these *will* cause errors if left unset.
140# note: add appropriate stanzas in loadConfig to parse these
141our %config = (
142 # Database connection info
143 dbname => 'dnsdb',
144 dbuser => 'dnsdb',
145 dbpass => 'secret',
146 dbhost => '',
147
148 # Email notice settings
149 mailhost => 'smtp.example.com',
150 mailnotify => 'dnsdb@example.com', # to
151 mailsender => 'dnsdb@example.com', # from
152 mailname => 'DNS Administration',
153 orgname => 'Example Corp',
154 domain => 'example.com',
155
156 # Template directory
157 templatedir => 'templates/',
158# fmeh. this is a real web path, not a logical internal one. hm..
159# cssdir => 'templates/',
160 sessiondir => 'session/',
161 exportcache => 'cache/',
162
163 # Session params
164 timeout => '3600', # 1 hour default
165
166 # Other miscellanea
167 log_failures => 1, # log all evarthing by default
168 perpage => 15,
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# Username, full name, ID - mainly for logging
178my %userdata;
179
180# Entity-relationship reference hashes.
181my %par_tbl = (
182 group => 'groups',
183 user => 'users',
184 defrec => 'default_records',
185 defrevrec => 'default_rev_records',
186 domain => 'domains',
187 revzone => 'revzones',
188 record => 'records'
189 );
190my %id_col = (
191 group => 'group_id',
192 user => 'user_id',
193 defrec => 'record_id',
194 defrevrec => 'record_id',
195 domain => 'domain_id',
196 revzone => 'rdns_id',
197 record => 'record_id'
198 );
199my %par_col = (
200 group => 'parent_group_id',
201 user => 'group_id',
202 defrec => 'group_id',
203 defrevrec => 'group_id',
204 domain => 'group_id',
205 revzone => 'group_id',
206 record => 'domain_id'
207 );
208my %par_type = (
209 group => 'group',
210 user => 'group',
211 defrec => 'group',
212 defrevrec => 'group',
213 domain => 'group',
214 revzone => 'group',
215 record => 'domain'
216 );
217
218##
219## utility functions
220##
221
222## DNSDB::_rectable()
223# Takes default+rdns flags, returns appropriate table name
224sub _rectable {
225 my $def = shift;
226 my $rev = shift;
227
228 return 'records' if $def ne 'y';
229 return 'default_records' if $rev ne 'y';
230 return 'default_rev_records';
231} # end _rectable()
232
233## DNSDB::_recparent()
234# Takes default+rdns flags, returns appropriate parent-id column name
235sub _recparent {
236 my $def = shift;
237 my $rev = shift;
238
239 return 'group_id' if $def eq 'y';
240 return 'rdns_id' if $rev eq 'y';
241 return 'domain_id';
242} # end _recparent()
243
244## DNSDB::_ipparent()
245# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
246# Takes a database handle, default and reverse flags, IP (fragment) to check, parent zone ID,
247# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
248# database insertion)
249sub _ipparent {
250 my $dbh = shift;
251 my $defrec = shift;
252 my $revrec = shift;
253 my $val = shift;
254 my $id = shift;
255 my $addr = shift;
256
257 return if $revrec ne 'y'; # this sub not useful in forward zones
258
259 $$addr = NetAddr::IP->new($$val); #necessary?
260
261 # subsub to split, reverse, and overlay an IP fragment on a netblock
262 sub __rev_overlay {
263 my $splitme = shift; # ':' or '.', m'lud?
264 my $parnet = shift;
265 my $val = shift;
266 my $addr = shift;
267
268 my $joinme = $splitme;
269 $splitme = '\.' if $splitme eq '.';
270 my @working = reverse(split($splitme, $parnet->addr));
271 my @parts = reverse(split($splitme, $$val));
272 for (my $i = 0; $i <= $#parts; $i++) {
273 $working[$i] = $parts[$i];
274 }
275 my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
276 return 0 unless $checkme->within($parnet);
277 $$addr = $checkme; # force "correct" IP to be recorded.
278 return 1;
279 }
280
281 my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
282 my $parnet = NetAddr::IP->new($parstr);
283
284 # Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
285 return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
286 return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
287
288 if ($$addr && ($$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/ || $$val =~ m|/\d+$|)) {
289 # the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address,
290 # or a netblock (only expected on templates)
291 # the rest we have to restructure before fiddling. *sigh*
292 return 1 if $$addr->within($parnet);
293 } else {
294 # We don't have a complete IP in $$val (yet)... unless we have a netblock
295 if ($parnet->addr =~ /:/) {
296 $$val =~ s/^:+//; # gotta strip'em all...
297 return __rev_overlay(':', $parnet, $val, $addr);
298 }
299 if ($parnet->addr =~ /\./) {
300 $$val =~ s/^\.+//;
301 return __rev_overlay('.', $parnet, $val, $addr);
302 }
303 # should be impossible to get here...
304 }
305 # ... and here.
306 # can't do nuttin' in forward zones
307} # end _ipparent()
308
309## DNSDB::_hostparent()
310# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
311# Takes a database handle and hostname.
312# Returns the domain ID of the parent domain if one was found.
313sub _hostparent {
314 my $dbh = shift;
315 my $hname = shift;
316
317 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
318 my @hostbits = split /\./, $hname;
319 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE lower(domain) = lower(?) GROUP BY domain_id");
320 foreach (@hostbits) {
321 $sth->execute($hname);
322 my ($found, $parid) = $sth->fetchrow_array;
323 if ($found) {
324 return $parid;
325 }
326 $hname =~ s/^$_\.//;
327 }
328} # end _hostparent()
329
330## DNSDB::_log()
331# Log an action
332# Takes a database handle and log entry hash containing at least:
333# group_id, log entry
334# and optionally one or more of:
335# domain_id, rdns_id
336# The %userdata hash provides the user ID, username, and fullname
337sub _log {
338 my $dbh = shift;
339
340 my %args = @_;
341
342 $args{rdns_id} = 0 if !$args{rdns_id};
343 $args{domain_id} = 0 if !$args{domain_id};
344
345##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
346# if ($config{log_channel} eq 'sql') {
347 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
348 undef,
349 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
350 $userdata{userid}, $userdata{username}, $userdata{fullname}) );
351# } elsif ($config{log_channel} eq 'file') {
352# } elsif ($config{log_channel} eq 'syslog') {
353# }
354} # end _log
355
356
357##
358## Record validation subs.
359##
360
361## All of these subs take substantially the same arguments:
362# a database handle
363# a hash containing at least the following keys:
364# - defrec (default/live flag)
365# - revrec (forward/reverse flag)
366# - id (parent entity ID)
367# - host (hostname)
368# - rectype
369# - val (IP, hostname [CNAME/MX/SRV] or text)
370# - addr (NetAddr::IP object from val. May be undef.)
371# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
372# host, rectype, and addr should be references as these may be modified in validation
373
374# A record
375sub _validate_1 {
376 my $dbh = shift;
377
378 my %args = @_;
379
380 return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
381
382 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
383 # or the intended parent domain for live records.
384 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
385 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
386
387 # Check IP is well-formed, and that it's a v4 address
388 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
389 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
390 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
391 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
392 unless $args{addr} && !$args{addr}->{isv6};
393 # coerce IP/value to normalized form for storage
394 ${$args{val}} = $args{addr}->addr;
395
396 return ('OK','OK');
397} # done A record
398
399# NS record
400sub _validate_2 {
401 my $dbh = shift;
402
403 my %args = @_;
404
405 # Check that the target of the record is within the parent.
406 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
407 if ($args{defrec} eq 'n') {
408 # Check if IP/address/zone/"subzone" is within the parent
409 if ($args{revrec} eq 'y') {
410 my $tmpip = NetAddr::IP->new(${$args{val}});
411 my $pname = revName($dbh,$args{id});
412 return ('FAIL',"${$args{val}} not within $pname")
413 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
414 # Sub the returned thing for ZONE? This could get stupid if you have typos...
415 ${$args{val}} =~ s/ZONE/$tmpip->address/;
416 } else {
417 my $pname = domainName($dbh,$args{id});
418 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
419 }
420 } else {
421 # Default reverse NS records should always refer to the implied parent
422 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
423 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
424 }
425
426# Let this lie for now. Needs more magic.
427# # Check IP is well-formed, and that it's a v4 address
428# return ('FAIL',"A record must be a valid IPv4 address")
429# unless $addr && !$addr->{isv6};
430# # coerce IP/value to normalized form for storage
431# $$val = $addr->addr;
432
433 return ('OK','OK');
434} # done NS record
435
436# CNAME record
437sub _validate_5 {
438 my $dbh = shift;
439
440 my %args = @_;
441
442# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
443# This is fundamentally a messy operation and should really just be taken care of by the
444# export process, not manual maintenance of the necessary records.
445 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
446
447 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
448 # or the intended parent domain for live records.
449 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
450 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
451
452 return ('OK','OK');
453} # done CNAME record
454
455# SOA record
456sub _validate_6 {
457 # Smart monkeys won't stick their fingers in here; we have
458 # separate dedicated routines to deal with SOA records.
459 return ('OK','OK');
460} # done SOA record
461
462# PTR record
463sub _validate_12 {
464 my $dbh = shift;
465
466 my %args = @_;
467
468 if ($args{revrec} eq 'y') {
469 if ($args{defrec} eq 'n') {
470 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
471 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
472 ${$args{val}} = $args{addr}->addr;
473 } else {
474 if (${$args{val}} =~ /\./) {
475 # looks like a v4 or fragment
476 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
477 # woo! a complete IP! validate it and normalize, or fail.
478 $args{addr} = NetAddr::IP->new(${$args{val}})
479 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
480 ${$args{val}} = $args{addr}->addr;
481 } else {
482 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
483 }
484 } elsif (${$args{val}} =~ /[a-f:]/) {
485 # looks like a v6 or fragment
486 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
487 if ($args{addr}) {
488 if ($args{addr}->addr =~ /^0/) {
489 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
490 } else {
491 ${$args{val}} = $args{addr}->addr;
492 }
493 }
494 } else {
495 # bare number (probably). These could be v4 or v6, so we'll
496 # expand on these on creation of a reverse zone.
497 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
498 }
499 ${$args{host}} =~ s/\.*$/\.$config{domain}/ if ${$args{host}} !~ /(?:$config{domain}|ADMINDOMAIN)$/;
500 }
501
502# Multiple PTR records do NOT generally do what most people believe they do,
503# and tend to fail in the most awkward way possible. Check and warn.
504# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
505
506 my @checkvals = (${$args{val}});
507 if (${$args{val}} =~ /,/) {
508 # push . and :: variants into checkvals if val has ,
509 my $tmp;
510 ($tmp = ${$args{val}}) =~ s/,/./;
511 push @checkvals, $tmp;
512 ($tmp = ${$args{val}}) =~ s/,/::/;
513 push @checkvals, $tmp;
514 }
515 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
516 foreach my $checkme (@checkvals) {
517 if ($args{update}) {
518 # Record update. There should usually be an existing PTR (the record being updated)
519 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
520 " WHERE val = ?", undef, ($checkme)) };
521 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
522 if @ptrs && (!grep /^$args{update}$/, @ptrs);
523 } else {
524 # New record. Always warn if a PTR exists
525 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
526 " WHERE val = ?", undef, ($checkme));
527 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
528 if $ptrcount;
529 }
530 }
531
532 } else {
533 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
534 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
535 # PTR records on export
536 return ('FAIL',"Forward zones cannot contain PTR records");
537 }
538
539 return ('OK','OK');
540} # done PTR record
541
542# MX record
543sub _validate_15 {
544 my $dbh = shift;
545
546 my %args = @_;
547
548# Not absolutely true but WTF use is an MX record for a reverse zone?
549 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
550
551 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
552 ${$args{dist}} =~ s/\s*//g;
553 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
554
555 ${$args{fields}} = "distance,";
556 push @{$args{vallist}}, ${$args{dist}};
557
558 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
559 # or the intended parent domain for live records.
560 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
561 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
562
563# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
564# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
565# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
566# return ('FAIL',"$val is not a valid IP address") if !$addr;
567# }
568# }
569
570 return ('OK','OK');
571} # done MX record
572
573# TXT record
574sub _validate_16 {
575 # Could arguably put a WARN return here on very long (>512) records
576 return ('OK','OK');
577} # done TXT record
578
579# RP record
580sub _validate_17 {
581 # Probably have to validate these some day
582 return ('OK','OK');
583} # done RP record
584
585# AAAA record
586sub _validate_28 {
587 my $dbh = shift;
588
589 my %args = @_;
590
591 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
592
593 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
594 # or the intended parent domain for live records.
595 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
596 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
597
598 # Check IP is well-formed, and that it's a v6 address
599 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
600 unless $args{addr} && $args{addr}->{isv6};
601 # coerce IP/value to normalized form for storage
602 ${$args{val}} = $args{addr}->addr;
603
604 return ('OK','OK');
605} # done AAAA record
606
607# SRV record
608sub _validate_33 {
609 my $dbh = shift;
610
611 my %args = @_;
612
613# Not absolutely true but WTF use is an SRV record for a reverse zone?
614 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
615
616 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
617 ${$args{dist}} =~ s/\s*//g;
618 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
619
620 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
621 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
622 return ('FAIL',"Port and weight are required for SRV records")
623 unless defined(${$args{weight}}) && defined(${$args{port}});
624 ${$args{weight}} =~ s/\s*//g;
625 ${$args{port}} =~ s/\s*//g;
626
627 return ('FAIL',"Port and weight are required, and must be numeric")
628 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
629
630 ${$args{fields}} = "distance,weight,port,";
631 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
632
633 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
634 # or the intended parent domain for live records.
635 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
636 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
637
638 return ('OK','OK');
639} # done SRV record
640
641# Now the custom types
642
643# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
644sub _validate_65280 {
645 my $dbh = shift;
646
647 my %args = @_;
648
649 my $code = 'OK';
650 my $msg = 'OK';
651
652 if ($args{defrec} eq 'n') {
653 # live record; revrec determines whether we validate the PTR or A component first.
654
655 if ($args{revrec} eq 'y') {
656 ($code,$msg) = _validate_12($dbh, %args);
657 return ($code,$msg) if $code eq 'FAIL';
658
659 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
660 if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
661 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
662 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
663 $msg .= "\n$addmsg" if $code eq 'WARN';
664 $msg = $addmsg if $code eq 'OK';
665 ${$args{rectype}} = $reverse_typemap{PTR};
666 return ('WARN', $msg);
667 }
668
669 # Add domain ID to field list and values
670 ${$args{fields}} .= "domain_id,";
671 push @{$args{vallist}}, ${$args{domid}};
672
673 } else {
674 ($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
675 ($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
676 return ($code,$msg) if $code eq 'FAIL';
677
678 # Check if the requested reverse zone exists - note, an IP fragment won't
679 # work here since we don't *know* which parent to put it in.
680 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
681 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
682 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
683 if (!$revid) {
684 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
685 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
686 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
687 return ('WARN', $msg);
688 }
689
690 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
691 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
692 if ($args{update}) {
693 # Record update. There should usually be an existing PTR (the record being updated)
694 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
695 " WHERE val = ?", undef, (${$args{val}})) };
696 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
697 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
698 $code = 'WARN';
699 }
700 } else {
701 # New record. Always warn if a PTR exists
702 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
703 " WHERE val = ?", undef, (${$args{val}}));
704 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
705 if $ptrcount;
706 $code = 'WARN' if $ptrcount;
707 }
708
709# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
710# " WHERE val = ?", undef, ${$args{val}});
711# if ($ptrcount) {
712# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
713# " WHERE val = ?
714# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
715# $code = 'WARN';
716# }
717
718 ${$args{fields}} .= "rdns_id,";
719 push @{$args{vallist}}, $revid;
720 }
721
722 } else { # defrec eq 'y'
723 if ($args{revrec} eq 'y') {
724 ($code,$msg) = _validate_12($dbh, %args);
725 return ($code,$msg) if $code eq 'FAIL';
726 if (${$args{rectype}} == 65280) {
727 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
728 if ${$args{val}} =~ /:/;
729 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
730 } elsif (${$args{rectype}} == 65281) {
731 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
732 if ${$args{val}} =~ /\./;
733 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
734 }
735 } else {
736 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
737 # domains, since you wouldn't be able to substitute both domain and reverse zone
738 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
739 # confuse the hell out of pretty much anything that uses them.
740##fixme: make this a config flag?
741 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
742 }
743 }
744
745 return ($code, $msg);
746} # done A+PTR record
747
748# AAAA+PTR record
749# A+PTR above has been magicked to handle AAAA+PTR as well.
750sub _validate_65281 {
751 return _validate_65280(@_);
752} # done AAAA+PTR record
753
754# PTR template record
755sub _validate_65282 {
756 my $dbh = shift;
757
758 my %args = @_;
759
760 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
761 if ($args{revrec} eq 'y') {
762 if ($args{defrec} eq 'n') {
763 return ('FAIL', "Template block ${$args{val}} is not within ".revName($dbh, $args{id}))
764 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
765##fixme: warn if $args{val} is not /31 or larger block?
766 ${$args{val}} = "$args{addr}";
767 } else {
768 if (${$args{val}} =~ /\./) {
769 # looks like a v4 or fragment
770 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
771 # woo! a complete IP! validate it and normalize, or fail.
772 $args{addr} = NetAddr::IP->new(${$args{val}})
773 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
774 ${$args{val}} = "$args{addr}";
775 } else {
776 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
777 }
778 } elsif (${$args{val}} =~ /[a-f:]/) {
779 # looks like a v6 or fragment
780 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
781 if ($args{addr}) {
782 if ($args{addr}->addr =~ /^0/) {
783 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
784 } else {
785 ${$args{val}} = "$args{addr}";
786 }
787 }
788 } else {
789 # bare number (probably). These could be v4 or v6, so we'll
790 # expand on these on creation of a reverse zone.
791 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
792 }
793 }
794##fixme: validate %-patterns?
795
796# Unlike single PTR records, there is absolutely no way to sanely support multiple
797# PTR templates for the same block, since they expect to expand to all the individual
798# IPs on export. Nested templates should be supported though.
799
800 my @checkvals = (${$args{val}});
801 if (${$args{val}} =~ /,/) {
802 # push . and :: variants into checkvals if val has ,
803 my $tmp;
804 ($tmp = ${$args{val}}) =~ s/,/./;
805 push @checkvals, $tmp;
806 ($tmp = ${$args{val}}) =~ s/,/::/;
807 push @checkvals, $tmp;
808 }
809##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
810# Per Netblock such that they don't conflict on export
811 my $typeck;
812# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
813 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
814# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
815 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
816# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
817 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
818 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
819 "AND (type=65282 OR $typeck)");
820 foreach my $checkme (@checkvals) {
821 $pcsth->execute($checkme);
822 my ($rc) = $pcsth->fetchrow_array;
823 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc > 1;
824 }
825
826 } else {
827 return ('FAIL', "Forward zones cannot contain PTR records");
828 }
829
830 return ('OK','OK');
831} # done PTR template record
832
833# A+PTR template record
834sub _validate_65283 {
835 my $dbh = shift;
836
837 my %args = @_;
838
839 my ($code,$msg) = ('OK','OK');
840
841##fixme: need to fiddle things since A+PTR templates are acceptable in live
842# forward zones but not default records
843 if ($args{defrec} eq 'n') {
844 if ($args{revrec} eq 'n') {
845 ($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
846 ($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
847 return ($code,$msg) if $code eq 'FAIL';
848
849 # Check if the requested reverse zone exists - note, an IP fragment won't
850 # work here since we don't *know* which parent to put it in.
851 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
852 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
853 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
854 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
855 if (!$revid) {
856 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
857 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
858##fixme: add A template, AAAA template types?
859# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
860 return ('FAIL', $msg);
861 }
862
863 # Add reverse zone ID to field list and values
864 ${$args{fields}} .= "rdns_id,";
865 push @{$args{vallist}}, $revid;
866
867 } else {
868 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
869 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
870 ${$args{val}} = "$args{addr}";
871
872 if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
873 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
874 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
875 $msg .= "\n$addmsg" if $code eq 'WARN';
876 $msg = $addmsg if $code eq 'OK';
877 ${$args{rectype}} = 65282;
878 return ('WARN', $msg);
879 }
880
881 # Add domain ID to field list and values
882 ${$args{fields}} .= "domain_id,";
883 push @{$args{vallist}}, ${$args{domid}};
884 }
885
886 } else {
887 my ($code,$msg) = _validate_65282($dbh, %args);
888 return ($code, $msg) if $code eq 'FAIL';
889 # get domain, check against ${$args{name}}
890 }
891
892 return ('OK','OK');
893} # done AAAA+PTR template record
894
895# AAAA+PTR template record
896sub _validate_65284 {
897 return ('OK','OK');
898} # done AAAA+PTR template record
899
900# Delegation record
901# This is essentially a specialized clone of the NS record, primarily useful
902# for delegating IPv4 sub-/24 reverse blocks
903sub _validate_65285 {
904 my $dbh = shift;
905
906 my %args = @_;
907
908# Almost, but not quite, identical to NS record validation.
909
910 # Check that the target of the record is within the parent.
911 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
912 if ($args{defrec} eq 'n') {
913 # Check if IP/address/zone/"subzone" is within the parent
914 if ($args{revrec} eq 'y') {
915 my $tmpip = NetAddr::IP->new(${$args{val}});
916 my $pname = revName($dbh,$args{id});
917 return ('FAIL',"${$args{val}} not within $pname")
918 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
919 # Normalize
920 ${$args{val}} = "$tmpip";
921 } else {
922 my $pname = domainName($dbh,$args{id});
923 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
924 }
925 } else {
926 return ('FAIL',"Delegation records are not permitted in default record sets");
927 }
928 return ('OK','OK');
929}
930
931
932##
933## Record data substitution subs
934##
935
936# Replace ZONE in hostname, or create (most of) the actual proper zone name
937sub _ZONE {
938 my $zone = shift;
939 my $string = shift;
940 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
941 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
942
943 my $prefix;
944
945 $string =~ s/,/./ if !$zone->{isv6};
946 $string =~ s/,/::/ if $zone->{isv6};
947
948 # Subbing ZONE in the host. We need to properly ID the netblock range
949 # The subbed text should have "network IP with trailing zeros stripped" for
950 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
951 # For blocks that do NOT line up on these boundaries, we take the most
952 # significant octet or 16-bit chunk of the "broadcast" IP and append it
953 # after a double-dash
954 # ie:
955 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
956 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
957 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
958 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
959 # Similar for v6
960
961 if (!$zone->{isv6}) { # IPv4
962
963 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
964 # a funky subnet that had host bits set.
965 my $bc = $zone->broadcast->addr;
966
967 if ($zone->masklen > 24) {
968 $bc =~ s/^\d+\.\d+\.\d+\.//;
969 } elsif ($zone->masklen > 16) {
970 $prefix =~ s/\.0$//;
971 $bc =~ s/^\d+\.\d+\.//;
972 } elsif ($zone->masklen > 8) {
973 $bc =~ s/^\d+\.//;
974 $prefix =~ s/\.0\.0$//;
975 } else {
976 $prefix =~ s/\.0\.0\.0$//;
977 }
978 if ($zone->masklen % 8) {
979 $bc =~ s/(\.255)+$//;
980 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
981 }
982 if ($fr eq 'f') {
983 $prefix =~ s/\.+/$sep/g;
984 } else {
985 $prefix = join($sep, reverse(split(/\./, $prefix)));
986 }
987
988 } else { # IPv6
989
990 if ($fr eq 'f') {
991
992 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
993 # a funky subnet that had host bits set.
994 my $bc = $zone->broadcast->addr;
995 if (($zone->masklen % 16) != 0) {
996 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
997 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
998 $prefix =~ s/:0$//;
999 $bc =~ s/:ffff$//;
1000 }
1001 # Strip the leading 16-bit chunks off the front of the broadcast IP
1002 $bc =~ s/^([a-f0-9]+:)+//;
1003 # Append the remaining 16-bit chunk to the prefix after "--"
1004 $prefix .= "--$bc";
1005 } else {
1006 # Strip off :0 from the end until we reach the netblock length.
1007 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
1008 $prefix =~ s/:0$//;
1009 }
1010 }
1011 # Actually deal with the separator
1012 $prefix =~ s/:/$sep/g;
1013
1014 } else { # $fr eq 'f'
1015
1016 $prefix = $zone->network->full; # Just In Case someone managed to slip in
1017 # a funky subnet that had host bits set.
1018 my $bc = $zone->broadcast->full;
1019 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1020 $bc =~ s/://g;
1021 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1022 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1023 $prefix =~ s/0$//;
1024 $bc =~ s/f$//;
1025 }
1026 # Split and reverse the order of the nibbles in the network/broadcast IPs
1027 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1028 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1029 my @nbits = reverse split //, $prefix;
1030 my @bbits = reverse split //, $bc;
1031 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1032 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1033 # Glue it back together
1034 $prefix = join($sep, @nbits);
1035
1036 } # $fr ne 'f'
1037
1038 } # $zone->{isv6}
1039
1040 # Do the substitution, finally
1041 $string =~ s/ZONE/$prefix/;
1042 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1043 return $string;
1044} # done _ZONE()
1045
1046# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1047# given the .arpa zone name, return the CIDR netblock the zone is for.
1048# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1049# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1050# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1051sub _zone2cidr {
1052 my $zone = shift;
1053
1054 my $cidr;
1055 my $tmpcidr;
1056 my $warnmsg = '';
1057
1058 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1059 # v4 revzone, formal zone name type
1060 my $tmpzone = $zone;
1061 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1062 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name") if $tmpzone !~ /^(?:\d+-)?[\d\.]+$/;
1063
1064 # Snag the octet pieces
1065 my @octs = split /\./, $tmpzone;
1066
1067 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1068 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1069 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1070 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1071 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1072 );
1073
1074 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1075 # Need to take the size of the range to offset the basic octet-based mask length,
1076 # and make sure the first number in the range gets used as the network address for the block
1077 # Alternate form: The second number is actually the real netmask, not the end of the range.
1078 my $masklen = 0;
1079 if ($octs[0] =~ /^((\d+)-(\d+))$/) { # take the range...
1080 if (24 < $3 && $3 < 31) {
1081 # we have a real netmask
1082 $masklen = -$maskmap{$3};
1083 } else {
1084 # we have a range. NB: only real CIDR ranges are supported
1085 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1086 }
1087 $octs[0] = $2; # set the base octet of the range...
1088 }
1089 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1090
1091# arguably we should only allow sub-octet range/mask in-addr.arpa
1092# specifications in the least significant octet, but the code is
1093# simpler if we deal with sub-octet delegations at any level.
1094
1095 # Now we find the "true" mask with the aid of the "base" calculated above
1096 if ($#octs == 0) {
1097 $masklen += 8;
1098 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1099 } elsif ($#octs == 1) {
1100 $masklen += 16;
1101 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1102 } elsif ($#octs == 2) {
1103 $masklen += 24;
1104 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1105 } else {
1106 $masklen += 32;
1107 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1108 }
1109
1110 } elsif ($zone =~ /\.ip6\.arpa$/) {
1111 # v6 revzone, formal zone name type
1112 my $tmpzone = $zone;
1113 $tmpzone =~ s/\.ip6\.arpa\.?//;
1114##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1115 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name") if $tmpzone !~ /^[a-fA-F\d\.]+$/;
1116 my @quads = reverse(split(/\./, $tmpzone));
1117 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1118 my $nc;
1119 foreach (@quads) {
1120 $tmpcidr .= $_;
1121 $tmpcidr .= ":" if ++$nc % 4 == 0;
1122 }
1123 my $nq = 1 if $nc % 4 != 0;
1124 my $mask = $nc * 4; # need to do this here because we probably increment it below
1125 while ($nc++ % 4 != 0) {
1126 $tmpcidr .= "0";
1127 }
1128 $tmpcidr .= ($nq ? '::' : ':')."/$mask";
1129 }
1130
1131 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1132 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1133 unless $cidr = NetAddr::IP->new($tmpcidr);
1134
1135 if ($warnmsg) {
1136 $errstr = $warnmsg;
1137 return ('WARN', $cidr);
1138 }
1139 return ('OK', $cidr);
1140} # done _zone2cidr()
1141
1142# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1143# really have a sane way to handle this type of expansion at the moment
1144# due to the size of the address space.
1145# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1146sub _template4_expand {
1147 my $tmpl = shift;
1148 my $ip = shift;
1149
1150 my @ipparts = split /\./, $ip;
1151 my @iphex;
1152 my @ippad;
1153 for (@ipparts) {
1154 push @iphex, sprintf("%x", $_);
1155 push @ippad, sprintf("%0.3u", $_);
1156 }
1157
1158 # IP substitutions in template records:
1159 #major patterns:
1160 #dashed IP, forward and reverse
1161 #dotted IP, forward and reverse (even if forward is... dumb)
1162 # -> %r for reverse, %i for forward, leading - or . to indicate separator, defaults to -
1163 # %r or %-r => %4d-%3d-%2d-%1d
1164 # %.r => %4d.%3d.%2d.%1d
1165 # %i or %-i => %1d-%2d-%3d-%4d
1166 # %.i => %1d.%2d.%3d.%4d
1167 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1168 $$tmpl =~ s/\%([-.])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1169 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1170 $$tmpl =~ s/\%([-.])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1171
1172 #hex-coded IP
1173 # %h
1174 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1175
1176 #IP as decimal-coded 32-bit value
1177 # %d
1178 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1179 $$tmpl =~ s/\%d/$iptmp/g;
1180
1181 #minor patterns (per-octet)
1182 # %[1234][dh0]
1183 #octet
1184 #hex-coded octet
1185 #0-padded octet
1186 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1187 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1188 $$tmpl =~ s/\%([1234])0/$ippad[$1-1]/g;
1189} # _template4_expand()
1190
1191
1192##
1193## Initialization and cleanup subs
1194##
1195
1196
1197## DNSDB::loadConfig()
1198# Load the minimum required initial state (DB connect info) from a config file
1199# Load misc other bits while we're at it.
1200# Takes an optional hash that may contain:
1201# - basename and config path to look for
1202# - RPC flag (saves parsing the more complex RPC bits if not needed)
1203# Populates the %config and %def hashes
1204sub loadConfig {
1205 my %args = @_;
1206 $args{basename} = '' if !$args{basename};
1207 $args{rpcflag} = '' if !$args{rpcflag};
1208##fixme $args{basename} isn't doing what I think I thought I was trying to do.
1209
1210 my $deferr = ''; # place to put error from default config file in case we can't find either one
1211
1212 my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
1213 $configroot = '' if $args{basename} =~ m|^/|;
1214 $args{basename} .= ".conf" if $args{basename} !~ /\.conf$/;
1215 my $defconfig = "$configroot/dnsdb.conf";
1216 my $siteconfig = "$configroot/$args{basename}";
1217
1218 # System defaults
1219 __cfgload("$defconfig", $args{rpcflag}) or $deferr = $errstr;
1220
1221 # Per-site-ish settings.
1222 if ($args{basename} ne '.conf') {
1223 unless (__cfgload("$siteconfig"), $args{rpcflag}) {
1224 $errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
1225 "Error opening site config file $siteconfig";
1226 return;
1227 }
1228 }
1229
1230 # Munge log_failures.
1231 if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
1232 # true/false, on/off, yes/no all valid.
1233 if ($config{log_failures} =~ /^(?:true|false|on|off|yes|no)$/) {
1234 if ($config{log_failures} =~ /(?:true|on|yes)/) {
1235 $config{log_failures} = 1;
1236 } else {
1237 $config{log_failures} = 0;
1238 }
1239 } else {
1240 $errstr = "Bad log_failures setting $config{log_failures}";
1241 $config{log_failures} = 1;
1242 # Bad setting shouldn't be fatal.
1243 # return 2;
1244 }
1245 }
1246
1247 # All good, clear the error and go home.
1248 $errstr = '';
1249 return 1;
1250} # end loadConfig()
1251
1252
1253## DNSDB::__cfgload()
1254# Private sub to parse a config file and load it into %config
1255# Takes a file handle on an open config file
1256sub __cfgload {
1257 $errstr = '';
1258 my $cfgfile = shift;
1259 my $rpcflag = shift;
1260
1261 if (open CFG, "<$cfgfile") {
1262 while (<CFG>) {
1263 chomp;
1264 s/^\s*//;
1265 next if /^#/;
1266 next if /^$/;
1267# hmm. more complex bits in this file might require [heading] headers, maybe?
1268# $mode = $1 if /^\[(a-z)+]/;
1269 # DB connect info
1270 $config{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1271 $config{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1272 $config{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1273 $config{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1274 # SOA defaults
1275 $def{contact} = $1 if /^contact\s*=\s*([a-z0-9_.-]+)/i;
1276 $def{prins} = $1 if /^prins\s*=\s*([a-z0-9_.-]+)/i;
1277 $def{soattl} = $1 if /^soattl\s*=\s*(\d+)/i;
1278 $def{refresh} = $1 if /^refresh\s*=\s*(\d+)/i;
1279 $def{retry} = $1 if /^retry\s*=\s*(\d+)/i;
1280 $def{expire} = $1 if /^expire\s*=\s*(\d+)/i;
1281 $def{minttl} = $1 if /^minttl\s*=\s*(\d+)/i;
1282 $def{ttl} = $1 if /^ttl\s*=\s*(\d+)/i;
1283 # Mail settings
1284 $config{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1285 $config{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1286 $config{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1287 $config{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1288 $config{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1289 $config{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1290 # session - note this is fed directly to CGI::Session
1291 $config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1292 $config{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1293 # misc
1294 $config{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1295 $config{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1296 $config{exportcache} = $1 if m{^exportcache\s*=\s*([a-z0-9/_.-]+)}i;
1297 # RPC options
1298 if ($rpcflag && /^rpc/) {
1299 if (my ($tmp) = /^rpc_iplist\s*=\s*(.+)/i) {
1300 my @ips = split /[,\s]+/, $tmp;
1301 my $rpcsys = shift @ips;
1302 push @{$config{rpcacl}{$rpcsys}}, @ips;
1303 }
1304 }
1305 }
1306 close CFG;
1307 } else {
1308 $errstr = $!;
1309 return;
1310 }
1311 return 1;
1312} # end __cfgload()
1313
1314
1315## DNSDB::connectDB()
1316# Creates connection to DNS database.
1317# Requires the database name, username, and password.
1318# Returns a handle to the db.
1319# Set up for a PostgreSQL db; could be any transactional DBMS with the
1320# right changes.
1321sub connectDB {
1322 $errstr = '';
1323 my $dbname = shift;
1324 my $user = shift;
1325 my $pass = shift;
1326 my $dbh;
1327 my $DSN = "DBI:Pg:dbname=$dbname";
1328
1329 my $host = shift;
1330 $DSN .= ";host=$host" if $host;
1331
1332# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1333# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1334 $dbh = DBI->connect($DSN, $user, $pass, {
1335 AutoCommit => 1,
1336 PrintError => 0
1337 })
1338 or return (undef, $DBI::errstr) if(!$dbh);
1339
1340##fixme: initialize the DB if we can't find the table (since, by definition, there's
1341# nothing there if we can't select from it...)
1342 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1343 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1344 return (undef,$DBI::errstr) if $dbh->err;
1345
1346#if ($tblcount == 0) {
1347# # create tables one at a time, checking for each.
1348# return (undef, "check table misc missing");
1349#}
1350
1351
1352# Return here if we can't select.
1353# This should retrieve the dbversion key.
1354 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1355 $sth->execute();
1356 return (undef,$DBI::errstr) if ($sth->err);
1357
1358##fixme: do stuff to the DB on version mismatch
1359# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1360# DB should be downward-compatible; column defaults should give sane (if possibly
1361# useless-and-needs-help) values in columns an older software stack doesn't know about.
1362
1363# See if the select returned anything (or null data). This should
1364# succeed if the select executed, but...
1365 $sth->fetchrow();
1366 return (undef,$DBI::errstr) if ($sth->err);
1367
1368 $sth->finish;
1369
1370# If we get here, we should be OK.
1371 return ($dbh,"DB connection OK");
1372} # end connectDB
1373
1374
1375## DNSDB::finish()
1376# Cleans up after database handles and so on.
1377# Requires a database handle
1378sub finish {
1379 my $dbh = $_[0];
1380 $dbh->disconnect;
1381} # end finish
1382
1383
1384## DNSDB::initGlobals()
1385# Initialize global variables
1386# NB: this does NOT include web-specific session variables!
1387# Requires a database handle
1388sub initGlobals {
1389 my $dbh = shift;
1390
1391# load record types from database
1392 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1393 $sth->execute;
1394 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1395 $typemap{$recval} = $recname;
1396 $reverse_typemap{$recname} = $recval;
1397 # now we fill the record validation function hash
1398 if ($stdflag < 5) {
1399 my $fn = "_validate_$recval";
1400 $validators{$recval} = \&$fn;
1401 } else {
1402 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1403 $validators{$recval} = eval $fn;
1404 }
1405 }
1406} # end initGlobals
1407
1408
1409## DNSDB::initRPC()
1410# Takes a database handle, remote username, and remote fullname.
1411# Sets up the RPC logging-pseudouser if needed.
1412# Sets the %userdata hash for logging.
1413# Returns undef on failure
1414sub initRPC {
1415 my $dbh = shift;
1416 my %args = @_;
1417
1418 return if !$args{username};
1419 return if !$args{fullname};
1420
1421 $args{username} = "$args{username}/$args{rpcsys}";
1422
1423 my $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1424 " FROM users WHERE username=?", undef, ($args{username}) );
1425 if (!$tmpuser) {
1426 $dbh->do("INSERT INTO users (username,password,firstname,type) VALUES (?,'RPC',?,'R')", undef,
1427 ($args{username}, $args{fullname}) );
1428 $tmpuser = $dbh->selectrow_hashref("SELECT username,user_id AS userid,group_id,firstname,lastname,status".
1429 " FROM users WHERE username=?", undef, ($args{username}) );
1430 }
1431 %userdata = %{$tmpuser};
1432 $userdata{lastname} = '' if !$userdata{lastname};
1433 $userdata{fullname} = "$userdata{firstname} $userdata{lastname} ($args{rpcsys})";
1434 return 1 if $tmpuser;
1435} # end initRPC()
1436
1437
1438## DNSDB::login()
1439# Takes a database handle, username and password
1440# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1441# password matches the one on file, and account is not disabled
1442# Returns undef otherwise
1443sub login {
1444 my $dbh = shift;
1445 my $user = shift;
1446 my $pass = shift;
1447
1448 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1449 " FROM users WHERE username=?",
1450 undef, ($user) );
1451 return if !$userinfo;
1452 return if !$userinfo->{status};
1453
1454 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1455 # native passwords (crypt-md5)
1456 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1457 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1458 # VegaDNS import (hex-coded MD5)
1459 return if $userinfo->{password} ne md5_hex($pass);
1460 } else {
1461 # plaintext (convenient now and then)
1462 return if $userinfo->{password} ne $pass;
1463 }
1464
1465 return $userinfo;
1466} # end login()
1467
1468
1469## DNSDB::initActionLog()
1470# Set up action logging. Takes a database handle and user ID
1471# Sets some internal globals and Does The Right Thing to set up a logging channel.
1472# This sets up _log() to spew out log entries to the defined channel without worrying
1473# about having to open a file or a syslog channel
1474##fixme Need to call _initActionLog_blah() for various logging channels, configured
1475# via dnsdb.conf, in $config{log_channel} or something
1476# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1477sub initActionLog {
1478 my $dbh = shift;
1479 my $uid = shift;
1480
1481 return if !$uid;
1482
1483 # snag user info for logging. there's got to be a way to not have to pass this back
1484 # and forth from a caller, but web usage means no persistence we can rely on from
1485 # the server side.
1486 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1487 " FROM users WHERE user_id=?", undef, ($uid));
1488##fixme: errors are unpossible!
1489
1490 $userdata{username} = $username;
1491 $userdata{userid} = $uid;
1492 $userdata{fullname} = $fullname;
1493
1494 # convert to real check once we have other logging channels
1495 # if ($config{log_channel} eq 'sql') {
1496 # Open Log, Sez Me!
1497 # }
1498
1499} # end initActionLog
1500
1501
1502## DNSDB::initPermissions()
1503# Set up permissions global
1504# Takes database handle and UID
1505sub initPermissions {
1506 my $dbh = shift;
1507 my $uid = shift;
1508
1509# %permissions = $(getPermissions($dbh,'user',$uid));
1510 getPermissions($dbh, 'user', $uid, \%permissions);
1511
1512} # end initPermissions()
1513
1514
1515## DNSDB::getPermissions()
1516# Get permissions from DB
1517# Requires DB handle, group or user flag, ID, and hashref.
1518sub getPermissions {
1519 my $dbh = shift;
1520 my $type = shift;
1521 my $id = shift;
1522 my $hash = shift;
1523
1524 my $sql = qq(
1525 SELECT
1526 p.admin,p.self_edit,
1527 p.group_create,p.group_edit,p.group_delete,
1528 p.user_create,p.user_edit,p.user_delete,
1529 p.domain_create,p.domain_edit,p.domain_delete,
1530 p.record_create,p.record_edit,p.record_delete,p.record_locchg,
1531 p.location_create,p.location_edit,p.location_delete,p.location_view
1532 FROM permissions p
1533 );
1534 if ($type eq 'group') {
1535 $sql .= qq(
1536 JOIN groups g ON g.permission_id=p.permission_id
1537 WHERE g.group_id=?
1538 );
1539 } else {
1540 $sql .= qq(
1541 JOIN users u ON u.permission_id=p.permission_id
1542 WHERE u.user_id=?
1543 );
1544 }
1545
1546 my $sth = $dbh->prepare($sql);
1547
1548 $sth->execute($id) or die "argh: ".$sth->errstr;
1549
1550# my $permref = $sth->fetchrow_hashref;
1551# return $permref;
1552# $hash = $permref;
1553# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1554 ($hash->{admin},$hash->{self_edit},
1555 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1556 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1557 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1558 $hash->{record_create},$hash->{record_edit},$hash->{record_delete},$hash->{record_locchg},
1559 $hash->{location_create},$hash->{location_edit},$hash->{location_delete},$hash->{location_view}
1560 ) = $sth->fetchrow_array;
1561
1562} # end getPermissions()
1563
1564
1565## DNSDB::changePermissions()
1566# Update an ACL entry
1567# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1568sub changePermissions {
1569 my $dbh = shift;
1570 my $type = shift;
1571 my $id = shift;
1572 my $newperms = shift;
1573 my $inherit = shift || 0;
1574
1575 my $resultmsg = '';
1576
1577 # see if we're switching from inherited to custom. for bonus points,
1578 # snag the permid and parent permid anyway, since we'll need the permid
1579 # to set/alter custom perms, and both if we're switching from custom to
1580 # inherited.
1581 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1582 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1583 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1584 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1585 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1586 $sth->execute($id);
1587
1588 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1589
1590# hack phtoui
1591# group id 1 is "special" in that it's it's own parent (err... possibly.)
1592# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1593 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1594
1595 local $dbh->{AutoCommit} = 0;
1596 local $dbh->{RaiseError} = 1;
1597
1598 # Wrap all the SQL in a transaction
1599 eval {
1600 if ($inherit) {
1601
1602 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1603 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1604 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1605
1606 } else {
1607
1608 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1609##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1610# ... if'n'when we have groups with fully inherited permissions.
1611 # SQL is coo
1612 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1613 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1614 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1615 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1616 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1617 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1618 }
1619
1620 # and now set the permissions we were passed
1621 foreach (@permtypes) {
1622 if (defined ($newperms->{$_})) {
1623 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1624 }
1625 }
1626
1627 } # (inherited->)? custom
1628
1629 if ($type eq 'user') {
1630 $resultmsg = "Updated permissions for user $name";
1631 } else {
1632 $resultmsg = "Updated default permissions for group $name";
1633 }
1634 _log($dbh, (group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg));
1635 $dbh->commit;
1636 }; # end eval
1637 if ($@) {
1638 my $msg = $@;
1639 eval { $dbh->rollback; };
1640 return ('FAIL',"Error changing permissions: $msg");
1641 }
1642
1643 return ('OK',$resultmsg);
1644} # end changePermissions()
1645
1646
1647## DNSDB::comparePermissions()
1648# Compare two permission hashes
1649# Returns '>', '<', '=', '!'
1650sub comparePermissions {
1651 my $p1 = shift;
1652 my $p2 = shift;
1653
1654 my $retval = '='; # assume equality until proven otherwise
1655
1656 no warnings "uninitialized";
1657
1658 foreach (@permtypes) {
1659 next if $p1->{$_} == $p2->{$_}; # equal is good
1660 if ($p1->{$_} && !$p2->{$_}) {
1661 if ($retval eq '<') { # if we've already found an unequal pair where
1662 $retval = '!'; # $p2 has more access, and we now find a pair
1663 last; # where $p1 has more access, the overall access
1664 } # is neither greater or lesser, it's unequal.
1665 $retval = '>';
1666 }
1667 if (!$p1->{$_} && $p2->{$_}) {
1668 if ($retval eq '>') { # if we've already found an unequal pair where
1669 $retval = '!'; # $p1 has more access, and we now find a pair
1670 last; # where $p2 has more access, the overall access
1671 } # is neither greater or lesser, it's unequal.
1672 $retval = '<';
1673 }
1674 }
1675 return $retval;
1676} # end comparePermissions()
1677
1678
1679## DNSDB::changeGroup()
1680# Change group ID of an entity
1681# Takes a database handle, entity type, entity ID, and new group ID
1682sub changeGroup {
1683 my $dbh = shift;
1684 my $type = shift;
1685 my $id = shift;
1686 my $newgrp = shift;
1687
1688##fixme: fail on not enough args
1689 #return ('FAIL', "Missing
1690
1691 return ('FAIL', "Can't change the group of a $type")
1692 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1693
1694 # Collect some names for logging and messages
1695 my $entname;
1696 if ($type eq 'domain') {
1697 $entname = domainName($dbh, $id);
1698 } elsif ($type eq 'revzone') {
1699 $entname = revName($dbh, $id);
1700 } elsif ($type eq 'user') {
1701 $entname = userFullName($dbh, $id, '%u');
1702 } elsif ($type eq 'group') {
1703 $entname = groupName($dbh, $id);
1704 }
1705
1706 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1707 undef, ($id));
1708 my $oldgname = groupName($dbh, $oldgid);
1709 my $newgname = groupName($dbh, $newgrp);
1710
1711 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1712
1713 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1714
1715 # Allow transactions, and raise an exception on errors so we can catch it later.
1716 # Use local to make sure these get "reset" properly on exiting this block
1717 local $dbh->{AutoCommit} = 0;
1718 local $dbh->{RaiseError} = 1;
1719
1720 eval {
1721 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1722 # Log the change in both the old and new groups
1723 _log($dbh, (group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname"));
1724 _log($dbh, (group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname"));
1725 $dbh->commit;
1726 };
1727 if ($@) {
1728 my $msg = $@;
1729 eval { $dbh->rollback; };
1730 if ($config{log_failures}) {
1731 _log($dbh, (group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg"));
1732 $dbh->commit; # since we enabled transactions earlier
1733 }
1734 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1735 }
1736
1737 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1738} # end changeGroup()
1739
1740
1741##
1742## Processing subs
1743##
1744
1745## DNSDB::addDomain()
1746# Add a domain
1747# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1748# and user info hash (for logging).
1749# Returns a status code and message
1750sub addDomain {
1751 $errstr = '';
1752 my $dbh = shift;
1753 return ('FAIL',"Need database handle") if !$dbh;
1754 my $domain = shift;
1755 return ('FAIL',"Domain must not be blank") if !$domain;
1756 my $group = shift;
1757 return ('FAIL',"Need group") if !defined($group);
1758 my $state = shift;
1759 return ('FAIL',"Need domain status") if !defined($state);
1760
1761 $state = 1 if $state =~ /^active$/;
1762 $state = 1 if $state =~ /^on$/;
1763 $state = 0 if $state =~ /^inactive$/;
1764 $state = 0 if $state =~ /^off$/;
1765
1766 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1767
1768 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1769
1770 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)");
1771 my $dom_id;
1772
1773# quick check to start to see if we've already got one
1774 $sth->execute($domain);
1775 ($dom_id) = $sth->fetchrow_array;
1776
1777 return ('FAIL', "Domain already exists") if $dom_id;
1778
1779 # Allow transactions, and raise an exception on errors so we can catch it later.
1780 # Use local to make sure these get "reset" properly on exiting this block
1781 local $dbh->{AutoCommit} = 0;
1782 local $dbh->{RaiseError} = 1;
1783
1784 # Wrap all the SQL in a transaction
1785 eval {
1786 # insert the domain...
1787 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
1788
1789 # get the ID...
1790 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1791 undef, ($domain));
1792
1793 _log($dbh, (domain_id => $dom_id, group_id => $group,
1794 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain"));
1795
1796 # ... and now we construct the standard records from the default set. NB: group should be variable.
1797 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1798 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
1799 " VALUES ($dom_id,?,?,?,?,?,?,?)");
1800 $sth->execute($group);
1801 while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
1802 $host =~ s/DOMAIN/$domain/g;
1803 $val =~ s/DOMAIN/$domain/g;
1804 $sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
1805 if ($typemap{$type} eq 'SOA') {
1806 my @tmp1 = split /:/, $host;
1807 my @tmp2 = split /:/, $val;
1808 _log($dbh, (domain_id => $dom_id, group_id => $group,
1809 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1810 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1811 } else {
1812 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1813 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1814 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1815 _log($dbh, (domain_id => $dom_id, group_id => $group,
1816 entry => $logentry." $val', TTL $ttl"));
1817 }
1818 }
1819
1820 # once we get here, we should have suceeded.
1821 $dbh->commit;
1822 }; # end eval
1823
1824 if ($@) {
1825 my $msg = $@;
1826 eval { $dbh->rollback; };
1827 _log($dbh, (group_id => $group, entry => "Failed adding domain $domain ($msg)"))
1828 if $config{log_failures};
1829 $dbh->commit; # since we enabled transactions earlier
1830 return ('FAIL',$msg);
1831 } else {
1832 return ('OK',$dom_id);
1833 }
1834} # end addDomain
1835
1836
1837## DNSDB::delZone()
1838# Delete a forward or reverse zone.
1839# Takes a database handle, zone ID, and forward/reverse flag.
1840# for now, just delete the records, then the domain.
1841# later we may want to archive it in some way instead (status code 2, for example?)
1842sub delZone {
1843 my $dbh = shift;
1844 my $zoneid = shift;
1845 my $revrec = shift;
1846
1847 # Allow transactions, and raise an exception on errors so we can catch it later.
1848 # Use local to make sure these get "reset" properly on exiting this block
1849 local $dbh->{AutoCommit} = 0;
1850 local $dbh->{RaiseError} = 1;
1851
1852 my $msg = '';
1853 my $failmsg = '';
1854 my $zone = ($revrec eq 'n' ? domainName($dbh, $zoneid) : revName($dbh, $zoneid));
1855
1856 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
1857
1858 # Set this up here since we may use if if $config{log_failures} is enabled
1859 my %loghash;
1860 $loghash{domain_id} = $zoneid if $revrec eq 'n';
1861 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
1862 $loghash{group_id} = parentID($dbh,
1863 (id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
1864
1865 # Wrap all the SQL in a transaction
1866 eval {
1867 # Disentangle custom record types before removing the
1868 # ones that are only in the zone to be deleted
1869 if ($revrec eq 'n') {
1870 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
1871 $failmsg = "Failure converting multizone types to single-zone";
1872 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
1873 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
1874 $sth->execute(65282, $zoneid, 65283);
1875 $sth->execute(65282, $zoneid, 65284);
1876 $failmsg = "Failure removing domain records";
1877 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
1878 $failmsg = "Failure removing domain";
1879 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
1880 } else {
1881 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
1882 $failmsg = "Failure converting multizone types to single-zone";
1883 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
1884 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
1885# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
1886# $sth->execute(65286?, $zoneid, 65283);
1887# $sth->execute(65286?, $zoneid, 65284);
1888 $failmsg = "Failure removing reverse records";
1889 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
1890 $failmsg = "Failure removing reverse zone";
1891 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
1892 }
1893
1894 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
1895 $loghash{entry} = $msg;
1896 _log($dbh, %loghash);
1897
1898 # once we get here, we should have suceeded.
1899 $dbh->commit;
1900 }; # end eval
1901
1902 if ($@) {
1903 $msg = $@;
1904 eval { $dbh->rollback; };
1905 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
1906 if ($config{log_failures}) {
1907 _log($dbh, %loghash);
1908 $dbh->commit; # since we enabled transactions earlier
1909 }
1910 return ('FAIL', $loghash{entry});
1911 } else {
1912 return ('OK', $msg);
1913 }
1914
1915} # end delZone()
1916
1917
1918## DNSDB::domainName()
1919# Return the domain name based on a domain ID
1920# Takes a database handle and the domain ID
1921# Returns the domain name or undef on failure
1922sub domainName {
1923 $errstr = '';
1924 my $dbh = shift;
1925 my $domid = shift;
1926 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
1927 $errstr = $DBI::errstr if !$domname;
1928 return $domname if $domname;
1929} # end domainName()
1930
1931
1932## DNSDB::revName()
1933# Return the reverse zone name based on an rDNS ID
1934# Takes a database handle and the rDNS ID
1935# Returns the reverse zone name or undef on failure
1936sub revName {
1937 $errstr = '';
1938 my $dbh = shift;
1939 my $revid = shift;
1940 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
1941 $errstr = $DBI::errstr if !$revname;
1942 return $revname if $revname;
1943} # end revName()
1944
1945
1946## DNSDB::domainID()
1947# Takes a database handle and domain name
1948# Returns the domain ID number
1949sub domainID {
1950 $errstr = '';
1951 my $dbh = shift;
1952 my $domain = shift;
1953 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
1954 undef, ($domain) );
1955 $errstr = $DBI::errstr if !$domid;
1956 return $domid if $domid;
1957} # end domainID()
1958
1959
1960## DNSDB::revID()
1961# Takes a database handle and reverse zone name
1962# Returns the rDNS ID number
1963sub revID {
1964 $errstr = '';
1965 my $dbh = shift;
1966 my $revzone = shift;
1967 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
1968 $errstr = $DBI::errstr if !$revid;
1969 return $revid if $revid;
1970} # end revID()
1971
1972
1973## DNSDB::addRDNS
1974# Adds a reverse DNS zone
1975# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
1976# and boolean(ish) state (active/inactive)
1977# Returns a status code and message
1978sub addRDNS {
1979 my $dbh = shift;
1980 my $zone = NetAddr::IP->new(shift);
1981 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
1982 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
1983 my $group = shift;
1984 my $state = shift;
1985
1986 $state = 1 if $state =~ /^active$/;
1987 $state = 1 if $state =~ /^on$/;
1988 $state = 0 if $state =~ /^inactive$/;
1989 $state = 0 if $state =~ /^off$/;
1990
1991 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
1992
1993# quick check to start to see if we've already got one
1994 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
1995
1996 return ('FAIL', "Zone already exists") if $rdns_id;
1997
1998 # Allow transactions, and raise an exception on errors so we can catch it later.
1999 # Use local to make sure these get "reset" properly on exiting this block
2000 local $dbh->{AutoCommit} = 0;
2001 local $dbh->{RaiseError} = 1;
2002
2003 my $warnstr = '';
2004 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
2005 # wrong, we should have a value to override this anyway.
2006
2007 # Wrap all the SQL in a transaction
2008 eval {
2009 # insert the domain...
2010 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($zone, $group, $state));
2011
2012 # get the ID...
2013 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
2014
2015 _log($dbh, (rdns_id => $rdns_id, group_id => $group,
2016 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone"));
2017
2018 # ... and now we construct the standard records from the default set. NB: group should be variable.
2019 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2020 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl)".
2021 " VALUES ($rdns_id,?,?,?,?,?)");
2022 $sth->execute($group);
2023 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
2024 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
2025 if ($zone->{isv6}) {
2026 next if ($type == 65280 || $type == 65283);
2027 } else {
2028 next if ($type == 65281 || $type == 65284);
2029 }
2030
2031 $host =~ s/ADMINDOMAIN/$config{domain}/g;
2032
2033 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
2034 # On failure, tack a note on to a warning string and continue without adding this record.
2035 # While we're at it, we substitute $zone for ZONE in the value.
2036 if ($val eq 'ZONE') {
2037 # If we've got a pattern, we skip the default record version on (A+)PTR-template types
2038 next if $revpatt && ($type == 65282 || $type == 65283);
2039##fixme? do we care if we have multiple whole-zone templates?
2040 $val = $zone->network;
2041 } elsif ($val =~ /ZONE/) {
2042 my $tmpval = $val;
2043 $tmpval =~ s/ZONE//;
2044 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
2045 # as either v4 or v6. May make this an off-by-default config flag
2046 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
2047 if ($type == 12 || $type == 65282) {
2048 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
2049 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
2050 }
2051 my $addr;
2052 if (_ipparent($dbh, 'n', 'y', \$tmpval, $rdns_id, \$addr)) {
2053 $val = $addr->addr;
2054 } else {
2055 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
2056 next;
2057 }
2058 }
2059
2060 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
2061 # NS records get this substitution on the value instead.
2062 $host = _ZONE($zone, $host) if $type != 2;
2063
2064 # Fill in the forward domain ID if we can find it, otherwise:
2065 # Coerce type down to PTR or PTR template if we can't
2066 my $domid = 0;
2067 if ($type >= 65280) {
2068 if (!($domid = _hostparent($dbh, $host))) {
2069 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2070 $type = $reverse_typemap{PTR};
2071 $domid = 0; # just to be explicit.
2072 }
2073 }
2074
2075 $sth_in->execute($domid,$host,$type,$val,$ttl);
2076
2077 if ($typemap{$type} eq 'SOA') {
2078 my @tmp1 = split /:/, $host;
2079 my @tmp2 = split /:/, $val;
2080 _log($dbh, (rdns_id => $rdns_id, group_id => $group,
2081 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2082 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
2083 $defttl = $tmp2[3];
2084 } else {
2085 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2086 _log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2087 entry => $logentry." $val', TTL $ttl"));
2088 }
2089 }
2090
2091 # Generate record based on provided pattern.
2092 if ($revpatt) {
2093 my $host;
2094 my $type = ($zone->{isv6} ? 65284 : 65283);
2095 my $val = $zone->network;
2096
2097 # Substitute $zone for ZONE in the hostname.
2098 $host = _ZONE($zone, $revpatt);
2099
2100 my $domid = 0;
2101 if (!($domid = _hostparent($dbh, $host))) {
2102 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2103 $type = 65282;
2104 $domid = 0; # just to be explicit.
2105 }
2106
2107 $sth_in->execute($domid,$host,$type,$val,$defttl);
2108 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2109 _log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2110 entry => $logentry." $val', TTL $defttl from pattern"));
2111 }
2112
2113 # If there are warnings (presumably about default records skipped for cause) log them
2114 _log($dbh, (rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr"))
2115 if $warnstr;
2116
2117 # once we get here, we should have suceeded.
2118 $dbh->commit;
2119 }; # end eval
2120
2121 if ($@) {
2122 my $msg = $@;
2123 eval { $dbh->rollback; };
2124 _log($dbh, (group_id => $group, entry => "Failed adding reverse zone $zone ($msg)"))
2125 if $config{log_failures};
2126 $dbh->commit; # since we enabled transactions earlier
2127 return ('FAIL',$msg);
2128 } else {
2129 my $retcode = 'OK';
2130 if ($warnstr) {
2131 $resultstr = $warnstr;
2132 $retcode = 'WARN';
2133 }
2134 return ($retcode, $rdns_id);
2135 }
2136
2137} # end addRDNS()
2138
2139
2140## DNSDB::getZoneCount
2141# Get count of zones in group or groups
2142# Takes a database handle and hash containing:
2143# - the "current" group
2144# - an array of "acceptable" groups
2145# - a flag for forward/reverse zones
2146# - Optionally accept a "starts with" and/or "contains" filter argument
2147# Returns an integer count of the resulting zone list.
2148sub getZoneCount {
2149 my $dbh = shift;
2150
2151 my %args = @_;
2152
2153 my @filterargs;
2154 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2155 push @filterargs, "^$args{startwith}" if $args{startwith};
2156 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2157 push @filterargs, $args{filter} if $args{filter};
2158
2159 my $sql;
2160 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2161 if ($args{revrec} eq 'n') {
2162 $sql = "SELECT count(*) FROM domains".
2163 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2164 ($args{startwith} ? " AND domain ~* ?" : '').
2165 ($args{filter} ? " AND domain ~* ?" : '');
2166 } else {
2167 $sql = "SELECT count(*) FROM revzones".
2168 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2169 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2170 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2171 }
2172 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2173 return $count;
2174} # end getZoneCount()
2175
2176
2177## DNSDB::getZoneList()
2178# Get a list of zones in the specified group(s)
2179# Takes the same arguments as getZoneCount() above
2180# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2181sub getZoneList {
2182 my $dbh = shift;
2183
2184 my %args = @_;
2185
2186 my @zonelist;
2187
2188 $args{sortorder} = 'ASC' if !grep /^$args{sortorder}$/, ('ASC','DESC');
2189 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2190
2191 my @filterargs;
2192 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2193 push @filterargs, "^$args{startwith}" if $args{startwith};
2194 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2195 push @filterargs, $args{filter} if $args{filter};
2196
2197 my $sql;
2198 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2199 if ($args{revrec} eq 'n') {
2200 $args{sortby} = 'domain' if !grep /^$args{sortby}$/, ('domain','group','status');
2201 $sql = "SELECT domain_id,domain,status,groups.group_name AS group FROM domains".
2202 " INNER JOIN groups ON domains.group_id=groups.group_id".
2203 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2204 ($args{startwith} ? " AND domain ~* ?" : '').
2205 ($args{filter} ? " AND domain ~* ?" : '');
2206 } else {
2207##fixme: arguably startwith here is irrelevant. depends on the UI though.
2208 $args{sortby} = 'revnet' if !grep /^$args{sortby}$/, ('revnet','group','status');
2209 $sql = "SELECT rdns_id,revnet,status,groups.group_name AS group FROM revzones".
2210 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2211 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2212 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2213 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2214 }
2215 # A common tail.
2216 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2217 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage}".
2218 " OFFSET ".$args{offset}*$config{perpage});
2219 my $sth = $dbh->prepare($sql);
2220 $sth->execute(@filterargs);
2221 my $rownum = 0;
2222
2223 while (my @data = $sth->fetchrow_array) {
2224 my %row;
2225 $row{domain_id} = $data[0];
2226 $row{domain} = $data[1];
2227 $row{status} = $data[2];
2228 $row{group} = $data[3];
2229 push @zonelist, \%row;
2230 }
2231
2232 return \@zonelist;
2233} # end getZoneList()
2234
2235
2236## DNSDB::getZoneLocation()
2237# Retrieve the default location for a zone.
2238# Takes a database handle, forward/reverse flag, and zone ID
2239sub getZoneLocation {
2240 my $dbh = shift;
2241 my $revrec = shift;
2242 my $zoneid = shift;
2243
2244 my ($loc) = $dbh->selectrow_array("SELECT default_location FROM ".
2245 ($revrec eq 'n' ? 'domains WHERE domain_id = ?' : 'revzones WHERE rdns_id = ?'),
2246 undef, ($zoneid));
2247 return $loc;
2248} # end getZoneLocation()
2249
2250
2251## DNSDB::addGroup()
2252# Add a group
2253# Takes a database handle, group name, parent group, hashref for permissions,
2254# and optional template-vs-cloneme flag for the default records
2255# Returns a status code and message
2256sub addGroup {
2257 $errstr = '';
2258 my $dbh = shift;
2259 my $groupname = shift;
2260 my $pargroup = shift;
2261 my $permissions = shift;
2262
2263 # 0 indicates "custom", hardcoded.
2264 # Any other value clones that group's default records, if it exists.
2265 my $inherit = shift || 0;
2266##fixme: need a flag to indicate clone records or <?> ?
2267
2268 # Allow transactions, and raise an exception on errors so we can catch it later.
2269 # Use local to make sure these get "reset" properly on exiting this block
2270 local $dbh->{AutoCommit} = 0;
2271 local $dbh->{RaiseError} = 1;
2272
2273 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2274
2275 return ('FAIL', "Group already exists") if $group_id;
2276
2277 # Wrap all the SQL in a transaction
2278 eval {
2279 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2280
2281 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2282
2283 # We work through the whole set of permissions instead of specifying them so
2284 # that when we add a new permission, we don't have to change the code anywhere
2285 # that doesn't explicitly deal with that specific permission.
2286 my @permvals;
2287 foreach (@permtypes) {
2288 if (!defined ($permissions->{$_})) {
2289 push @permvals, 0;
2290 } else {
2291 push @permvals, $permissions->{$_};
2292 }
2293 }
2294 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2295 undef, ($groupid, @permvals) );
2296 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2297 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2298
2299 # Default records
2300 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2301 "VALUES ($groupid,?,?,?,?,?,?,?)");
2302 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2303 "VALUES ($groupid,?,?,?,?)");
2304 if ($inherit) {
2305 # Duplicate records from parent. Actually relying on inherited records feels
2306 # very fragile, and it would be problematic to roll over at a later time.
2307 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2308 $sth2->execute($pargroup);
2309 while (my @clonedata = $sth2->fetchrow_array) {
2310 $sthf->execute(@clonedata);
2311 }
2312 # And now the reverse records
2313 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2314 $sth2->execute($pargroup);
2315 while (my @clonedata = $sth2->fetchrow_array) {
2316 $sthr->execute(@clonedata);
2317 }
2318 } else {
2319##fixme: Hardcoding is Bad, mmmmkaaaay?
2320 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2321 # could load from a config file, but somewhere along the line we need hardcoded bits.
2322 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2323 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2324 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2325 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2326 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2327 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2328 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2329 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2330 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2331 }
2332
2333 _log($dbh, (group_id => $pargroup, entry => "Added group $groupname") );
2334
2335 # once we get here, we should have suceeded.
2336 $dbh->commit;
2337 }; # end eval
2338
2339 if ($@) {
2340 my $msg = $@;
2341 eval { $dbh->rollback; };
2342 if ($config{log_failures}) {
2343 _log($dbh, (group_id => $pargroup, entry => "Failed to add group $groupname: $msg") );
2344 $dbh->commit;
2345 }
2346 return ('FAIL',$msg);
2347 }
2348
2349 return ('OK','OK');
2350} # end addGroup()
2351
2352
2353## DNSDB::delGroup()
2354# Delete a group.
2355# Takes a group ID
2356# Returns a status code and message
2357sub delGroup {
2358 my $dbh = shift;
2359 my $groupid = shift;
2360
2361 # Allow transactions, and raise an exception on errors so we can catch it later.
2362 # Use local to make sure these get "reset" properly on exiting this block
2363 local $dbh->{AutoCommit} = 0;
2364 local $dbh->{RaiseError} = 1;
2365
2366##fixme: locate "knowable" error conditions and deal with them before the eval
2367# ... or inside, whatever.
2368# -> domains still exist in group
2369# -> ...
2370 my $failmsg = '';
2371 my $resultmsg = '';
2372
2373 # collect some pieces for logging and error messages
2374 my $groupname = groupName($dbh,$groupid);
2375 my $parid = parentID($dbh, (id => $groupid, type => 'group'));
2376
2377 # Wrap all the SQL in a transaction
2378 eval {
2379 # Check for Things in the group
2380 $failmsg = "Can't remove group $groupname";
2381 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2382 die "$grpcnt groups still in group\n" if $grpcnt;
2383 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2384 die "$domcnt domains still in group\n" if $domcnt;
2385 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2386 die "$usercnt users still in group\n" if $usercnt;
2387
2388 $failmsg = "Failed to delete default records for $groupname";
2389 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2390 $failmsg = "Failed to delete default reverse records for $groupname";
2391 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2392 $failmsg = "Failed to remove group $groupname";
2393 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2394
2395 _log($dbh, (group_id => $parid, entry => "Deleted group $groupname"));
2396 $resultmsg = "Deleted group $groupname";
2397
2398 # once we get here, we should have suceeded.
2399 $dbh->commit;
2400 }; # end eval
2401
2402 if ($@) {
2403 my $msg = $@;
2404 eval { $dbh->rollback; };
2405 if ($config{log_failures}) {
2406 _log($dbh, (group_id => $parid, entry => "$failmsg: $msg"));
2407 $dbh->commit; # since we enabled transactions earlier
2408 }
2409 return ('FAIL',"$failmsg: $msg");
2410 }
2411
2412 return ('OK',$resultmsg);
2413} # end delGroup()
2414
2415
2416## DNSDB::getChildren()
2417# Get a list of all groups whose parent^n is group <n>
2418# Takes a database handle, group ID, reference to an array to put the group IDs in,
2419# and an optional flag to return only immediate children or all children-of-children
2420# default to returning all children
2421# Calls itself
2422sub getChildren {
2423 $errstr = '';
2424 my $dbh = shift;
2425 my $rootgroup = shift;
2426 my $groupdest = shift;
2427 my $immed = shift || 'all';
2428
2429 # special break for default group; otherwise we get stuck.
2430 if ($rootgroup == 1) {
2431 # by definition, group 1 is the Root Of All Groups
2432 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2433 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2434 $sth->execute;
2435 while (my @this = $sth->fetchrow_array) {
2436 push @$groupdest, @this;
2437 }
2438 } else {
2439 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2440 $sth->execute($rootgroup);
2441 return if $sth->rows == 0;
2442 my @grouplist;
2443 while (my ($group) = $sth->fetchrow_array) {
2444 push @$groupdest, $group;
2445 getChildren($dbh,$group,$groupdest) if $immed eq 'all';
2446 }
2447 }
2448} # end getChildren()
2449
2450
2451## DNSDB::groupName()
2452# Return the group name based on a group ID
2453# Takes a database handle and the group ID
2454# Returns the group name or undef on failure
2455sub groupName {
2456 $errstr = '';
2457 my $dbh = shift;
2458 my $groupid = shift;
2459 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2460 $sth->execute($groupid);
2461 my ($groupname) = $sth->fetchrow_array();
2462 $errstr = $DBI::errstr if !$groupname;
2463 return $groupname if $groupname;
2464} # end groupName
2465
2466
2467## DNSDB::getGroupCount()
2468# Get count of subgroups in group or groups
2469# Takes a database handle and hash containing:
2470# - the "current" group
2471# - an array of "acceptable" groups
2472# - Optionally accept a "starts with" and/or "contains" filter argument
2473# Returns an integer count of the resulting group list.
2474sub getGroupCount {
2475 my $dbh = shift;
2476
2477 my %args = @_;
2478
2479 my @filterargs;
2480
2481 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2482 push @filterargs, "^$args{startwith}" if $args{startwith};
2483 push @filterargs, $args{filter} if $args{filter};
2484
2485 my $sql = "SELECT count(*) FROM groups ".
2486 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2487 ($args{startwith} ? " AND group_name ~* ?" : '').
2488 ($args{filter} ? " AND group_name ~* ?" : '');
2489 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2490 $errstr = $dbh->errstr if !$count;
2491 return $count;
2492} # end getGroupCount
2493
2494
2495## DNSDB::getGroupList()
2496# Get a list of sub^n-groups in the specified group(s)
2497# Takes the same arguments as getGroupCount() above
2498# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2499sub getGroupList {
2500 my $dbh = shift;
2501
2502 my %args = @_;
2503
2504 my @filterargs;
2505
2506 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2507 push @filterargs, "^$args{startwith}" if $args{startwith};
2508 push @filterargs, $args{filter} if $args{filter};
2509
2510 # protection against bad or missing arguments
2511 $args{sortorder} = 'ASC' if !$args{sortorder};
2512 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2513
2514 # munge sortby for columns in database
2515 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2516 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2517
2518 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup
2519 FROM groups g
2520 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2521 ).
2522 " WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2523 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2524 ($args{filter} ? " AND g.group_name ~* ?" : '').
2525 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2526 " ORDER BY $args{sortby} $args{sortorder} ".
2527 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2528 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2529 $errstr = $dbh->errstr if !$glist;
2530
2531 # LEFT JOINs make the result set balloon beyond sanity just to include counts;
2532 # this means there's lots of crunching needed to trim the result set back down.
2533 # So instead we track the order of the groups, and push the counts into the
2534 # arrayref result separately.
2535##fixme: put this whole sub in a transaction? might be
2536# needed for accurate results on very busy systems.
2537##fixme: large group lists need prepared statements?
2538#my $ucsth = $dbh->prepare("SELECT count(*) FROM users WHERE group_id=?");
2539#my $dcsth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
2540#my $rcsth = $dbh->prepare("SELECT count(*) FROM revzones WHERE group_id=?");
2541 foreach (@{$glist}) {
2542 my ($ucnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($$_{groupid}));
2543 $$_{nusers} = $ucnt;
2544 my ($dcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($$_{groupid}));
2545 $$_{ndomains} = $dcnt;
2546 my ($rcnt) = $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE group_id=?", undef, ($$_{groupid}));
2547 $$_{nrevzones} = $rcnt;
2548 }
2549
2550 return $glist;
2551} # end getGroupList
2552
2553
2554## DNSDB::groupID()
2555# Return the group ID based on the group name
2556# Takes a database handle and the group name
2557# Returns the group ID or undef on failure
2558sub groupID {
2559 $errstr = '';
2560 my $dbh = shift;
2561 my $group = shift;
2562 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($group) );
2563 $errstr = $DBI::errstr if !$grpid;
2564 return $grpid if $grpid;
2565} # end groupID()
2566
2567
2568## DNSDB::addUser()
2569# Add a user.
2570# Takes a DB handle, username, group ID, password, state (active/inactive).
2571# Optionally accepts:
2572# user type (user/admin) - defaults to user
2573# permissions string - defaults to inherit from group
2574# three valid forms:
2575# i - Inherit permissions
2576# c:<user_id> - Clone permissions from <user_id>
2577# C:<permission list> - Set these specific permissions
2578# first name - defaults to username
2579# last name - defaults to blank
2580# phone - defaults to blank (could put other data within column def)
2581# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2582sub addUser {
2583 $errstr = '';
2584 my $dbh = shift;
2585 my $username = shift;
2586 my $group = shift;
2587 my $pass = shift;
2588 my $state = shift;
2589
2590 return ('FAIL', "Missing one or more required entries") if !defined($state);
2591 return ('FAIL', "Username must not be blank") if !$username;
2592
2593 # Munge in some alternate state values
2594 $state = 1 if $state =~ /^active$/;
2595 $state = 1 if $state =~ /^on$/;
2596 $state = 0 if $state =~ /^inactive$/;
2597 $state = 0 if $state =~ /^off$/;
2598
2599 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2600
2601 my $permstring = shift || 'i'; # default is to inhert permissions from group
2602
2603 my $fname = shift || $username;
2604 my $lname = shift || '';
2605 my $phone = shift || ''; # not going format-check
2606
2607 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2608 my $user_id;
2609
2610# quick check to start to see if we've already got one
2611 $sth->execute($username);
2612 ($user_id) = $sth->fetchrow_array;
2613
2614 return ('FAIL', "User already exists") if $user_id;
2615
2616 # Allow transactions, and raise an exception on errors so we can catch it later.
2617 # Use local to make sure these get "reset" properly on exiting this block
2618 local $dbh->{AutoCommit} = 0;
2619 local $dbh->{RaiseError} = 1;
2620
2621 # Wrap all the SQL in a transaction
2622 eval {
2623 # insert the user... note we set inherited perms by default since
2624 # it's simple and cleans up some other bits of state
2625 my $sth = $dbh->prepare("INSERT INTO users ".
2626 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2627 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2628 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2629
2630 # get the ID...
2631 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2632
2633# Permissions! Gotta set'em all!
2634 die "Invalid permission string $permstring\n"
2635 if $permstring !~ /^(?:
2636 i # inherit
2637 |c:\d+ # clone
2638 # custom. no, the leading , is not a typo
2639 |C:(?:,(?:group|user|domain|record|location|self)_(?:edit|create|delete|locchg|view))*
2640 )$/x;
2641# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2642 if ($permstring ne 'i') {
2643 # for cloned or custom permissions, we have to create a new permissions entry.
2644 my $clonesrc = $group;
2645 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2646 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2647 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2648 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2649 undef, ($user_id,$clonesrc) );
2650 $dbh->do("UPDATE users SET permission_id=".
2651 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2652 "WHERE user_id=?", undef, ($user_id, $user_id) );
2653 }
2654 if ($permstring =~ /^C:/) {
2655 # finally for custom permissions, we set the passed-in permissions (and unset
2656 # any that might have been brought in by the clone operation above)
2657 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2658 undef, ($user_id) );
2659 foreach (@permtypes) {
2660 if ($permstring =~ /,$_/) {
2661 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2662 } else {
2663 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2664 }
2665 }
2666 }
2667
2668 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2669
2670##fixme: add another table to hold name/email for log table?
2671
2672 _log($dbh, (group_id => $group, entry => "Added user $username ($fname $lname)"));
2673 # once we get here, we should have suceeded.
2674 $dbh->commit;
2675 }; # end eval
2676
2677 if ($@) {
2678 my $msg = $@;
2679 eval { $dbh->rollback; };
2680 if ($config{log_failures}) {
2681 _log($dbh, (group_id => $group, entry => "Error adding user $username: $msg"));
2682 $dbh->commit; # since we enabled transactions earlier
2683 }
2684 return ('FAIL',"Error adding user $username: $msg");
2685 }
2686
2687 return ('OK',"User $username ($fname $lname) added");
2688} # end addUser
2689
2690
2691## DNSDB::getUserCount()
2692# Get count of users in group
2693# Takes a database handle and hash containing at least the current group, and optionally:
2694# - a reference list of secondary groups
2695# - a filter string
2696# - a "Starts with" string
2697sub getUserCount {
2698 my $dbh = shift;
2699
2700 my %args = @_;
2701
2702 my @filterargs;
2703
2704 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2705 push @filterargs, "^$args{startwith}" if $args{startwith};
2706 push @filterargs, $args{filter} if $args{filter};
2707
2708
2709 my $sql = "SELECT count(*) FROM users ".
2710 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2711 ($args{startwith} ? " AND username ~* ?" : '').
2712 ($args{filter} ? " AND username ~* ?" : '');
2713 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2714 $errstr = $dbh->errstr if !$count;
2715 return $count;
2716} # end getUserCount()
2717
2718
2719## DNSDB::getUserList()
2720# Get list of users
2721# Takes the same arguments as getUserCount() above, plus optional:
2722# - sort field
2723# - sort order
2724# - offset/return-all-everything flag (defaults to $perpage records)
2725sub getUserList {
2726 my $dbh = shift;
2727
2728 my %args = @_;
2729
2730 my @filterargs;
2731
2732 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2733 push @filterargs, "^$args{startwith}" if $args{startwith};
2734 push @filterargs, $args{filter} if $args{filter};
2735
2736 # better to request sorts on "simple" names, but it means we need to map it to real columns
2737 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
2738 fname => 'fname');
2739 $args{sortby} = $sortmap{$args{sortby}};
2740
2741 # protection against bad or missing arguments
2742 $args{sortorder} = 'ASC' if !$args{sortorder};
2743 $args{sortby} = 'u.username' if !$args{sortby};
2744 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2745
2746 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
2747 "FROM users u ".
2748 "INNER JOIN groups g ON u.group_id=g.group_id ".
2749 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2750 ($args{startwith} ? " AND u.username ~* ?" : '').
2751 ($args{filter} ? " AND u.username ~* ?" : '').
2752 " AND NOT u.type = 'R' ".
2753 " ORDER BY $args{sortby} $args{sortorder} ".
2754 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2755 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2756 $errstr = $dbh->errstr if !$ulist;
2757 return $ulist;
2758} # end getUserList()
2759
2760
2761## DNSDB::getUserDropdown()
2762# Get a list of usernames for use in a dropdown menu.
2763# Takes a database handle, current group, and optional "tag this as selected" flag.
2764# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
2765sub getUserDropdown {
2766 my $dbh = shift;
2767 my $grp = shift;
2768 my $sel = shift || 0;
2769
2770 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
2771 $sth->execute($grp);
2772
2773 my @userlist;
2774 while (my ($username,$uid) = $sth->fetchrow_array) {
2775 my %row = (
2776 username => $username,
2777 uid => $uid,
2778 selected => ($sel == $uid ? 1 : 0)
2779 );
2780 push @userlist, \%row;
2781 }
2782 return \@userlist;
2783} # end getUserDropdown()
2784
2785
2786## DNSDB::checkUser()
2787# Check user/pass combo on login
2788sub checkUser {
2789 my $dbh = shift;
2790 my $user = shift;
2791 my $inpass = shift;
2792
2793 my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
2794 $sth->execute($user);
2795 my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
2796 my $loginfailed = 1 if !defined($uid);
2797
2798 if ($pass =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
2799 $loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
2800 } else {
2801 $loginfailed = 1 if $pass ne $inpass;
2802 }
2803
2804 # nnnngggg
2805 return ($uid, $gid);
2806} # end checkUser
2807
2808
2809## DNSDB:: updateUser()
2810# Update general data about user
2811sub updateUser {
2812 my $dbh = shift;
2813
2814##fixme: tweak calling convention so that we can update any given bit of data
2815 my $uid = shift;
2816 my $username = shift;
2817 my $group = shift;
2818 my $pass = shift;
2819 my $state = shift;
2820 my $type = shift || 'u';
2821 my $fname = shift || $username;
2822 my $lname = shift || '';
2823 my $phone = shift || ''; # not going format-check
2824
2825 my $resultmsg = '';
2826
2827 # Munge in some alternate state values
2828 $state = 1 if $state =~ /^active$/;
2829 $state = 1 if $state =~ /^on$/;
2830 $state = 0 if $state =~ /^inactive$/;
2831 $state = 0 if $state =~ /^off$/;
2832
2833 # Allow transactions, and raise an exception on errors so we can catch it later.
2834 # Use local to make sure these get "reset" properly on exiting this block
2835 local $dbh->{AutoCommit} = 0;
2836 local $dbh->{RaiseError} = 1;
2837
2838 my $sth;
2839
2840 # Password can be left blank; if so we assume there's one on file.
2841 # Actual blank passwords are bad, mm'kay?
2842 if (!$pass) {
2843 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
2844 } else {
2845 $pass = unix_md5_crypt($pass);
2846 }
2847
2848 eval {
2849 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
2850 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
2851 $resultmsg = "Updated user info for $username ($fname $lname)";
2852 _log($dbh, group_id => $group, entry => $resultmsg);
2853 $dbh->commit;
2854 };
2855 if ($@) {
2856 my $msg = $@;
2857 eval { $dbh->rollback; };
2858 if ($config{log_failures}) {
2859 _log($dbh, (group_id => $group, entry => "Error updating user $username: $msg"));
2860 $dbh->commit; # since we enabled transactions earlier
2861 }
2862 return ('FAIL',"Error updating user $username: $msg");
2863 }
2864
2865 return ('OK',$resultmsg);
2866} # end updateUser()
2867
2868
2869## DNSDB::delUser()
2870# Delete a user.
2871# Takes a database handle and user ID
2872# Returns a success/failure code and matching message
2873sub delUser {
2874 my $dbh = shift;
2875 my $userid = shift;
2876
2877 return ('FAIL',"Bad userid") if !defined($userid);
2878
2879 my $userdata = getUserData($dbh, $userid);
2880
2881 # Allow transactions, and raise an exception on errors so we can catch it later.
2882 # Use local to make sure these get "reset" properly on exiting this block
2883 local $dbh->{AutoCommit} = 0;
2884 local $dbh->{RaiseError} = 1;
2885
2886 eval {
2887 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
2888 _log($dbh, (group_id => $userdata->{group_id},
2889 entry => "Deleted user ID $userid/".$userdata->{username}.
2890 " (".$userdata->{firstname}." ".$userdata->{lastname}.")") );
2891 $dbh->commit;
2892 };
2893 if ($@) {
2894 my $msg = $@;
2895 eval { $dbh->rollback; };
2896 if ($config{log_failures}) {
2897 _log($dbh, (group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
2898 "$userid/".$userdata->{username}.": $msg") );
2899 $dbh->commit;
2900 }
2901 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
2902 }
2903
2904 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
2905} # end delUser
2906
2907
2908## DNSDB::userFullName()
2909# Return a pretty string!
2910# Takes a user_id and optional printf-ish string to indicate which pieces where:
2911# %u for the username
2912# %f for the first name
2913# %l for the last name
2914# All other text in the passed string will be left as-is.
2915##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
2916sub userFullName {
2917 $errstr = '';
2918 my $dbh = shift;
2919 my $userid = shift;
2920 my $fullformat = shift || '%f %l (%u)';
2921 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
2922 $sth->execute($userid);
2923 my ($uname,$fname,$lname) = $sth->fetchrow_array();
2924 $errstr = $DBI::errstr if !$uname;
2925
2926 $fullformat =~ s/\%u/$uname/g;
2927 $fullformat =~ s/\%f/$fname/g;
2928 $fullformat =~ s/\%l/$lname/g;
2929
2930 return $fullformat;
2931} # end userFullName
2932
2933
2934## DNSDB::userStatus()
2935# Sets and/or returns a user's status
2936# Takes a database handle, user ID and optionally a status argument
2937# Returns undef on errors.
2938sub userStatus {
2939 my $dbh = shift;
2940 my $id = shift;
2941 my $newstatus = shift || 'mu';
2942
2943 return undef if $id !~ /^\d+$/;
2944
2945 my $userdata = getUserData($dbh, $id);
2946
2947 # Allow transactions, and raise an exception on errors so we can catch it later.
2948 # Use local to make sure these get "reset" properly on exiting this block
2949 local $dbh->{AutoCommit} = 0;
2950 local $dbh->{RaiseError} = 1;
2951
2952 if ($newstatus ne 'mu') {
2953 # ooo, fun! let's see what we were passed for status
2954 eval {
2955 $newstatus = 0 if $newstatus eq 'useroff';
2956 $newstatus = 1 if $newstatus eq 'useron';
2957 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
2958
2959 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
2960 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
2961
2962 my %loghash;
2963 $loghash{group_id} = parentID($dbh, (id => $id, type => 'user'));
2964 $loghash{entry} = $resultstr;
2965 _log($dbh, %loghash);
2966
2967 $dbh->commit;
2968 };
2969 if ($@) {
2970 my $msg = $@;
2971 eval { $dbh->rollback; };
2972 $resultstr = '';
2973 $errstr = $msg;
2974##fixme: failure logging?
2975 return;
2976 }
2977 }
2978
2979 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
2980 return $status;
2981} # end userStatus()
2982
2983
2984## DNSDB::getUserData()
2985# Get misc user data for display
2986sub getUserData {
2987 my $dbh = shift;
2988 my $uid = shift;
2989
2990 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
2991 "FROM users WHERE user_id=?");
2992 $sth->execute($uid);
2993 return $sth->fetchrow_hashref();
2994} # end getUserData()
2995
2996
2997## DNSDB::addLoc()
2998# Add a new location.
2999# Takes a database handle, group ID, short and long description, and a comma-separated
3000# list of IP addresses.
3001# Returns ('OK',<location>) on success, ('FAIL',<failmsg>) on failure
3002sub addLoc {
3003 my $dbh = shift;
3004 my $grp = shift;
3005 my $shdesc = shift;
3006 my $comments = shift;
3007 my $iplist = shift;
3008
3009 # $shdesc gets set to the generated location ID if possible, but these can be de-undefined here.
3010 $comments = '' if !$comments;
3011 $iplist = '' if !$iplist;
3012
3013 my $loc;
3014
3015 # Generate a location ID. This is, by spec, a two-character widget. We'll use [a-z][a-z]
3016 # for now; 676 locations should satisfy all but the largest of the huge networks.
3017 # Not sure whether these are case-sensitive, or what other rules might apply - in any case
3018 # the absolute maximum is 16K (256*256) since it's parsed by tinydns as a two-character field.
3019
3020# add just after "my $origloc = $loc;":
3021# # These expand the possible space from 26^2 to 52^2 [* note in testing only 2052 were achieved],
3022# # and wrap it around.
3023# # Yes, they skip a couple of possibles. No, I don't care.
3024# $loc = 'aA' if $loc eq 'zz';
3025# $loc = 'Aa' if $loc eq 'zZ';
3026# $loc = 'ZA' if $loc eq 'Zz';
3027# $loc = 'aa' if $loc eq 'ZZ';
3028
3029 # Allow transactions, and raise an exception on errors so we can catch it later.
3030 # Use local to make sure these get "reset" properly on exiting this block
3031 local $dbh->{AutoCommit} = 0;
3032 local $dbh->{RaiseError} = 1;
3033
3034##fixme: There is probably a far better way to do this. Sequential increments
3035# are marginally less stupid that pure random generation though, and the existence
3036# check makes sure we don't stomp on an imported one.
3037
3038 eval {
3039 # Get the "last" location. Note this is the only use for loc_id, because selecting on location Does Funky Things
3040 ($loc) = $dbh->selectrow_array("SELECT location FROM locations ORDER BY loc_id DESC LIMIT 1");
3041 ($loc) = ($loc =~ /^(..)/);
3042 my $origloc = $loc;
3043 # Make a change...
3044 $loc++;
3045 # ... and keep changing if it exists
3046 while ($dbh->selectrow_array("SELECT count(*) FROM locations WHERE location LIKE ?", undef, ($loc.'%'))) {
3047 $loc++;
3048 ($loc) = ($loc =~ /^(..)/);
3049 die "too many locations in use, can't add another one\n" if $loc eq $origloc;
3050##fixme: really need to handle this case faster somehow
3051#if $loc eq $origloc die "<thwap> bad admin: all locations used, your network is too fragmented";
3052 }
3053 # And now we should have a unique location. tinydns fundamentally limits the
3054 # number of these but there's no doc on what characters are valid.
3055 $shdesc = $loc if !$shdesc;
3056 $dbh->do("INSERT INTO locations (location, group_id, iplist, description, comments) VALUES (?,?,?,?,?)",
3057 undef, ($loc, $grp, $iplist, $shdesc, $comments) );
3058 _log($dbh, entry => "Added location ($shdesc, '$iplist')");
3059 $dbh->commit;
3060 };
3061 if ($@) {
3062 my $msg = $@;
3063 eval { $dbh->rollback; };
3064 if ($config{log_failures}) {
3065 $shdesc = $loc if !$shdesc;
3066 _log($dbh, (entry => "Failed adding location ($shdesc, '$iplist'): $msg"));
3067 $dbh->commit;
3068 }
3069 return ('FAIL',$msg);
3070 }
3071
3072 return ('OK',$loc);
3073} # end addLoc()
3074
3075
3076## DNSDB::updateLoc()
3077# Update details of a location.
3078# Takes a database handle, location ID, group ID, short description,
3079# long comments/notes, and comma/space-separated IP list
3080# Returns a result code and message
3081sub updateLoc {
3082 my $dbh = shift;
3083 my $loc = shift;
3084 my $grp = shift;
3085 my $shdesc = shift;
3086 my $comments = shift;
3087 my $iplist = shift;
3088
3089 $shdesc = '' if !$shdesc;
3090 $comments = '' if !$comments;
3091 $iplist = '' if !$iplist;
3092
3093 # Allow transactions, and raise an exception on errors so we can catch it later.
3094 # Use local to make sure these get "reset" properly on exiting this block
3095 local $dbh->{AutoCommit} = 0;
3096 local $dbh->{RaiseError} = 1;
3097
3098 my $oldloc = getLoc($dbh, $loc);
3099 my $okmsg = "Updated location (".$oldloc->{description}.", '".$oldloc->{iplist}."') to ($shdesc, '$iplist')";
3100
3101 eval {
3102 $dbh->do("UPDATE locations SET group_id=?,iplist=?,description=?,comments=? WHERE location=?",
3103 undef, ($grp, $iplist, $shdesc, $comments, $loc) );
3104 _log($dbh, entry => $okmsg);
3105 $dbh->commit;
3106 };
3107 if ($@) {
3108 my $msg = $@;
3109 eval { $dbh->rollback; };
3110 if ($config{log_failures}) {
3111 $shdesc = $loc if !$shdesc;
3112 _log($dbh, (entry => "Failed updating location ($shdesc, '$iplist'): $msg"));
3113 $dbh->commit;
3114 }
3115 return ('FAIL',$msg);
3116 }
3117
3118 return ('OK',$okmsg);
3119} # end updateLoc()
3120
3121
3122## DNSDB::delLoc()
3123sub delLoc {
3124 my $dbh = shift;
3125 my $loc = shift;
3126
3127 # Allow transactions, and raise an exception on errors so we can catch it later.
3128 # Use local to make sure these get "reset" properly on exiting this block
3129 local $dbh->{AutoCommit} = 0;
3130 local $dbh->{RaiseError} = 1;
3131
3132 my $oldloc = getLoc($dbh, $loc);
3133 my $olddesc = ($oldloc->{description} ? $oldloc->{description} : $loc);
3134 my $okmsg = "Deleted location ($olddesc, '".$oldloc->{iplist}."')";
3135
3136 eval {
3137 # Check for records with this location first. Deleting a location without deleting records
3138 # tagged for that location will render them unpublished without other warning.
3139 my ($r) = $dbh->selectrow_array("SELECT record_id FROM records WHERE location=? LIMIT 1", undef, ($loc) );
3140 die "Records still exist in location $olddesc\n" if $r;
3141 $dbh->do("DELETE FROM locations WHERE location=?", undef, ($loc) );
3142 _log($dbh, entry => $okmsg);
3143 $dbh->commit;
3144 };
3145 if ($@) {
3146 my $msg = $@;
3147 eval { $dbh->rollback; };
3148 if ($config{log_failures}) {
3149 _log($dbh, (entry => "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg"));
3150 $dbh->commit;
3151 }
3152 return ('FAIL', "Failed to delete location ($olddesc, '$oldloc->{iplist}'): $msg");
3153 }
3154
3155 return ('OK',$okmsg);
3156} # end delLoc()
3157
3158
3159## DNSDB::getLoc()
3160# Get details about a location/view
3161# Takes a database handle and location ID.
3162# Returns a reference to a hash containing the group ID, IP list, description, and comments/notes
3163sub getLoc {
3164 my $dbh = shift;
3165 my $loc = shift;
3166
3167 my $sth = $dbh->prepare("SELECT group_id,iplist,description,comments FROM locations WHERE location=?");
3168 $sth->execute($loc);
3169 return $sth->fetchrow_hashref();
3170} # end getLoc()
3171
3172
3173## DNSDB::getLocCount()
3174# Get count of locations/views
3175# Takes a database handle and hash containing at least the current group, and optionally:
3176# - a reference list of secondary groups
3177# - a filter string
3178# - a "Starts with" string
3179sub getLocCount {
3180 my $dbh = shift;
3181
3182 my %args = @_;
3183
3184 my @filterargs;
3185
3186 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3187 push @filterargs, "^$args{startwith}" if $args{startwith};
3188 push @filterargs, $args{filter} if $args{filter};
3189
3190
3191 my $sql = "SELECT count(*) FROM locations ".
3192 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3193 ($args{startwith} ? " AND description ~* ?" : '').
3194 ($args{filter} ? " AND description ~* ?" : '');
3195 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
3196 $errstr = $dbh->errstr if !$count;
3197 return $count;
3198} # end getLocCount()
3199
3200
3201## DNSDB::getLocList()
3202sub getLocList {
3203 my $dbh = shift;
3204
3205 my %args = @_;
3206
3207 my @filterargs;
3208
3209 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
3210 push @filterargs, "^$args{startwith}" if $args{startwith};
3211 push @filterargs, $args{filter} if $args{filter};
3212
3213 # better to request sorts on "simple" names, but it means we need to map it to real columns
3214# my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
3215# fname => 'fname');
3216# $args{sortby} = $sortmap{$args{sortby}};
3217
3218 # protection against bad or missing arguments
3219 $args{sortorder} = 'ASC' if !$args{sortorder};
3220 $args{sortby} = 'l.description' if !$args{sortby};
3221 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3222
3223 my $sql = "SELECT l.location, l.description, l.iplist, g.group_name ".
3224 "FROM locations l ".
3225 "INNER JOIN groups g ON l.group_id=g.group_id ".
3226 "WHERE l.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
3227 ($args{startwith} ? " AND l.description ~* ?" : '').
3228 ($args{filter} ? " AND l.description ~* ?" : '').
3229 " ORDER BY $args{sortby} $args{sortorder} ".
3230 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
3231 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
3232 $errstr = $dbh->errstr if !$ulist;
3233 return $ulist;
3234} # end getLocList()
3235
3236
3237## DNSDB::getLocDropdown()
3238# Get a list of location names for use in a dropdown menu.
3239# Takes a database handle, current group, and optional "tag this as selected" flag.
3240# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
3241sub getLocDropdown {
3242 my $dbh = shift;
3243 my $grp = shift;
3244 my $sel = shift || '';
3245
3246 my $sth = $dbh->prepare(qq(
3247 SELECT description,location FROM locations
3248 WHERE group_id=?
3249 ORDER BY description
3250 ) );
3251 $sth->execute($grp);
3252
3253 my @loclist;
3254 push @loclist, { locname => "(None/public)", loc => '', selected => ($sel ? 0 : ($sel eq '' ? 1 : 0)) };
3255 while (my ($locname, $loc) = $sth->fetchrow_array) {
3256 my %row = (
3257 locname => $locname,
3258 loc => $loc,
3259 selected => ($sel eq $loc ? 1 : 0)
3260 );
3261 push @loclist, \%row;
3262 }
3263 return \@loclist;
3264} # end getLocDropdown()
3265
3266
3267## DNSDB::getSOA()
3268# Return all suitable fields from an SOA record in separate elements of a hash
3269# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
3270sub getSOA {
3271 $errstr = '';
3272 my $dbh = shift;
3273 my $def = shift;
3274 my $rev = shift;
3275 my $id = shift;
3276
3277 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
3278 # - should really attach serial to the zone parent somewhere
3279
3280 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
3281 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
3282 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3283 return if !$ret;
3284##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
3285
3286 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
3287 delete $ret->{host};
3288 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
3289 delete $ret->{val};
3290
3291 return $ret;
3292} # end getSOA()
3293
3294
3295## DNSDB::updateSOA()
3296# Update the specified SOA record
3297# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
3298# Returns a two-element list with a result code and message
3299sub updateSOA {
3300 my $dbh = shift;
3301 my $defrec = shift;
3302 my $revrec = shift;
3303
3304 my %soa = @_;
3305
3306 my $oldsoa = getSOA($dbh, $defrec, $revrec, $soa{id});
3307
3308 my $msg;
3309 my %logdata;
3310 if ($defrec eq 'n') {
3311 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
3312 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
3313 $logdata{group_id} = parentID($dbh, (id => $soa{id}, revrec => $revrec,
3314 type => ($revrec eq 'n' ? 'domain' : 'revzone') ) );
3315 } else {
3316 $logdata{group_id} = $soa{id};
3317 }
3318 my $parname = ($defrec eq 'y' ? groupName($dbh, $soa{id}) :
3319 ($revrec eq 'n' ? domainName($dbh, $soa{id}) : revName($dbh, $soa{id})) );
3320
3321 # Allow transactions, and raise an exception on errors so we can catch it later.
3322 # Use local to make sure these get "reset" properly on exiting this block
3323 local $dbh->{AutoCommit} = 0;
3324 local $dbh->{RaiseError} = 1;
3325
3326 eval {
3327 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
3328 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
3329 $soa{ttl}, $oldsoa->{record_id}) );
3330 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
3331 "SOA for $parname: ".
3332 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
3333 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
3334 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
3335 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
3336
3337 $logdata{entry} = $msg;
3338 _log($dbh, %logdata);
3339
3340 $dbh->commit;
3341 };
3342 if ($@) {
3343 $msg = $@;
3344 eval { $dbh->rollback; };
3345 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
3346 "SOA record for $parname: $msg";
3347 if ($config{log_failures}) {
3348 _log($dbh, %logdata);
3349 $dbh->commit;
3350 }
3351 return ('FAIL', $logdata{entry});
3352 } else {
3353 return ('OK', $msg);
3354 }
3355} # end updateSOA()
3356
3357
3358## DNSDB::getRecLine()
3359# Return all data fields for a zone record in separate elements of a hash
3360# Takes a database handle, default/live flag, forward/reverse flag, and record ID
3361sub getRecLine {
3362 $errstr = '';
3363 my $dbh = shift;
3364 my $defrec = shift;
3365 my $revrec = shift;
3366 my $id = shift;
3367
3368 my $sql = "SELECT record_id,host,type,val,ttl".
3369 ($defrec eq 'n' ? ',location' : '').
3370 ($revrec eq 'n' ? ',distance,weight,port' : '').
3371 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id FROM ').
3372 _rectable($defrec,$revrec)." WHERE record_id=?";
3373 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
3374
3375 if ($dbh->err) {
3376 $errstr = $DBI::errstr;
3377 return undef;
3378 }
3379
3380 if (!$ret) {
3381 $errstr = "No such record";
3382 return undef;
3383 }
3384
3385 # explicitly set a parent id
3386 if ($defrec eq 'y') {
3387 $ret->{parid} = $ret->{group_id};
3388 } else {
3389 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3390 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3391 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3392 }
3393
3394 return $ret;
3395}
3396
3397
3398##fixme: should use above (getRecLine()) to get lines for below?
3399## DNSDB::getDomRecs()
3400# Return records for a domain
3401# Takes a database handle, default/live flag, group/domain ID, start,
3402# number of records, sort field, and sort order
3403# Returns a reference to an array of hashes
3404sub getDomRecs {
3405 $errstr = '';
3406 my $dbh = shift;
3407
3408 my %args = @_;
3409
3410 my @filterargs;
3411
3412 push @filterargs, $args{filter} if $args{filter};
3413
3414 # protection against bad or missing arguments
3415 $args{sortorder} = 'ASC' if !$args{sortorder};
3416 $args{sortby} = 'host' if !$args{sortby} && $args{revrec} eq 'n'; # default sort by host on domain record list
3417 $args{sortby} = 'val' if !$args{sortby} && $args{revrec} eq 'y'; # default sort by IP on revzone record list
3418 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3419
3420 # sort reverse zones on IP, correctly
3421 # do other fiddling with $args{sortby} while we're at it.
3422 # whee! multisort means just passing comma-separated fields in sortby!
3423 my $newsort = '';
3424 foreach my $sf (split /,/, $args{sortby}) {
3425 $sf = "r.$sf";
3426 $sf =~ s/r\.val/CAST (r.val AS inet)/
3427 if $args{revrec} eq 'y' && $args{defrec} eq 'n';
3428 $sf =~ s/r\.type/t.alphaorder/;
3429 $newsort .= ",$sf";
3430 }
3431 $newsort =~ s/^,//;
3432
3433 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3434 $sql .= ",l.description AS locname" if $args{defrec} eq 'n';
3435 $sql .= ",r.distance,r.weight,r.port" if $args{revrec} eq 'n';
3436 $sql .= " FROM "._rectable($args{defrec},$args{revrec})." r ";
3437 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3438 $sql .= "LEFT JOIN locations l ON r.location=l.location " if $args{defrec} eq 'n';
3439 $sql .= "WHERE "._recparent($args{defrec},$args{revrec})." = ?";
3440 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3441 $sql .= " AND (r.host ~* ? OR r.val ~* ?)" if $args{filter};
3442 $sql .= " ORDER BY $newsort $args{sortorder}";
3443 # ensure consistent ordering by sorting on record_id too
3444 $sql .= ", record_id $args{sortorder}";
3445 $sql .= ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
3446
3447 my @bindvars = ($args{id});
3448 push @bindvars, ($args{filter},$args{filter}) if $args{filter};
3449
3450 my $ret = $dbh->selectall_arrayref($sql, { Slice => {} }, (@bindvars) );
3451 return $ret;
3452} # end getDomRecs()
3453
3454
3455## DNSDB::getRecCount()
3456# Return count of non-SOA records in zone (or default records in a group)
3457# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3458# and optional filtering modifier
3459# Returns the count
3460sub getRecCount {
3461 my $dbh = shift;
3462 my $defrec = shift;
3463 my $revrec = shift;
3464 my $id = shift;
3465 my $filter = shift || '';
3466
3467 # keep the nasties down, since we can't ?-sub this bit. :/
3468 # note this is chars allowed in DNS hostnames
3469 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3470
3471 my @bindvars = ($id);
3472 push @bindvars, $filter if $filter;
3473 my $sql = "SELECT count(*) FROM ".
3474 _rectable($defrec,$revrec).
3475 " WHERE "._recparent($defrec,$revrec)."=? ".
3476 "AND NOT type=$reverse_typemap{SOA}".
3477 ($filter ? " AND host ~* ?" : '');
3478 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3479
3480 return $count;
3481
3482} # end getRecCount()
3483
3484
3485## DNSDB::addRec()
3486# Add a new record to a domain or a group's default records
3487# Takes a database handle, default/live flag, group/domain ID,
3488# host, type, value, and TTL
3489# Some types require additional detail: "distance" for MX and SRV,
3490# and weight/port for SRV
3491# Returns a status code and detail message in case of error
3492##fixme: pass a hash with the record data, not a series of separate values
3493sub addRec {
3494 $errstr = '';
3495 my $dbh = shift;
3496 my $defrec = shift;
3497 my $revrec = shift;
3498 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3499 # domain_id for domain records)
3500
3501 my $host = shift;
3502 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3503 my $val = shift;
3504 my $ttl = shift;
3505 my $location = shift;
3506 $location = '' if !$location;
3507
3508 # Spaces are evil.
3509 $$host =~ s/^\s+//;
3510 $$host =~ s/\s+$//;
3511 if ($typemap{$$rectype} ne 'TXT') {
3512 # Leading or trailng spaces could be legit in TXT records.
3513 $$val =~ s/^\s+//;
3514 $$val =~ s/\s+$//;
3515 }
3516
3517 # prep for validation
3518 my $addr = NetAddr::IP->new($$val);
3519 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3520
3521 my $domid = 0;
3522 my $revid = 0;
3523
3524 my $retcode = 'OK'; # assume everything will go OK
3525 my $retmsg = '';
3526
3527 # do simple validation first
3528 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3529
3530 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3531 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3532 # of types. Other things may also be added to validate default records of several flavours.
3533 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z . _)")
3534 if $defrec eq 'n' && ($revrec eq 'y' ? $$rectype != $reverse_typemap{TXT} : 1) &&
3535 $$host !~ /^[0-9a-z_%.-]+$/i;
3536
3537 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3538 my $dist = shift;
3539 my $weight = shift;
3540 my $port = shift;
3541
3542 my $fields;
3543 my @vallist;
3544
3545 # Call the validation sub for the type requested.
3546 ($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec, id => $id,
3547 host => $host, rectype => $rectype, val => $val, addr => $addr,
3548 dist => \$dist, port => \$port, weight => \$weight,
3549 fields => \$fields, vallist => \@vallist) );
3550
3551 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3552
3553 # Set up database fields and bind parameters
3554 $fields .= "host,type,val,ttl,location,"._recparent($defrec,$revrec);
3555 push @vallist, ($$host,$$rectype,$$val,$ttl,$location,$id);
3556 my $vallen = '?'.(',?'x$#vallist);
3557
3558 # Put together the success log entry. We have to use this horrible kludge
3559 # because domain_id and rdns_id may or may not be present, and if they are,
3560 # they're not at a guaranteed consistent index in the array. wheee!
3561 my %logdata;
3562 my @ftmp = split /,/, $fields;
3563 for (my $i=0; $i <= $#vallist; $i++) {
3564 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3565 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3566 }
3567 $logdata{group_id} = $id if $defrec eq 'y';
3568 $logdata{group_id} = parentID($dbh,
3569 (id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3570 if $defrec eq 'n';
3571 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3572 # NS records for revzones get special treatment
3573 if ($revrec eq 'y' && $$rectype == 2) {
3574 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3575 } else {
3576 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3577 }
3578
3579 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3580 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3581 if $typemap{$$rectype} eq 'SRV';
3582 $logdata{entry} .= "', TTL $ttl";
3583 $logdata{entry} .= ", location ".getLoc($dbh, $location)->{description} if $location;
3584
3585 # Allow transactions, and raise an exception on errors so we can catch it later.
3586 # Use local to make sure these get "reset" properly on exiting this block
3587 local $dbh->{AutoCommit} = 0;
3588 local $dbh->{RaiseError} = 1;
3589
3590 eval {
3591 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3592 undef, @vallist);
3593 _log($dbh, %logdata);
3594 $dbh->commit;
3595 };
3596 if ($@) {
3597 my $msg = $@;
3598 eval { $dbh->rollback; };
3599 if ($config{log_failures}) {
3600 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3601 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3602 _log($dbh, %logdata);
3603 $dbh->commit;
3604 }
3605 return ('FAIL',$msg);
3606 }
3607
3608 $resultstr = $logdata{entry};
3609 return ($retcode, $retmsg);
3610
3611} # end addRec()
3612
3613
3614## DNSDB::updateRec()
3615# Update a record
3616# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3617# Returns a status code and message
3618sub updateRec {
3619 $errstr = '';
3620
3621 my $dbh = shift;
3622 my $defrec = shift;
3623 my $revrec = shift;
3624 my $id = shift;
3625 my $parid = shift; # immediate parent entity that we're descending from to update the record
3626
3627 # all records have these
3628 my $host = shift;
3629 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
3630 my $rectype = shift;
3631 my $val = shift;
3632 my $ttl = shift;
3633 my $location = shift; # may be empty/null/undef depending on caller
3634 $location = '' if !$location;
3635
3636 # Spaces are evil.
3637 $$host =~ s/^\s+//;
3638 $$host =~ s/\s+$//;
3639 if ($typemap{$$rectype} ne 'TXT') {
3640 # Leading or trailng spaces could be legit in TXT records.
3641 $$val =~ s/^\s+//;
3642 $$val =~ s/\s+$//;
3643 }
3644
3645 # prep for validation
3646 my $addr = NetAddr::IP->new($$val);
3647 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3648
3649 my $domid = 0;
3650 my $revid = 0;
3651
3652 my $retcode = 'OK'; # assume everything will go OK
3653 my $retmsg = '';
3654
3655 # do simple validation first
3656 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3657
3658 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3659 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3660 # of types. Other things may also be added to validate default records of several flavours.
3661 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z - . _)")
3662 if $defrec eq 'n' && ($revrec eq 'y' ? $$rectype != $reverse_typemap{TXT} : 1) &&
3663 $$host !~ /^[0-9a-z_%.-]+$/i;
3664
3665 # only MX and SRV will use these
3666 my $dist = shift || 0;
3667 my $weight = shift || 0;
3668 my $port = shift || 0;
3669
3670 my $fields;
3671 my @vallist;
3672
3673 # get old record data so we have the right parent ID
3674 # and for logging (eventually)
3675 my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
3676
3677 # Call the validation sub for the type requested.
3678 # Note the ID to pass here is the *parent*, not the record
3679 ($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec,
3680 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
3681 host => $host, rectype => $rectype, val => $val, addr => $addr,
3682 dist => \$dist, port => \$port, weight => \$weight,
3683 fields => \$fields, vallist => \@vallist,
3684 update => $id) );
3685
3686 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3687
3688 # Set up database fields and bind parameters. Note only the optional fields
3689 # (distance, weight, port, secondary parent ID) are added in the validation call above
3690 $fields .= "host,type,val,ttl,location,"._recparent($defrec,$revrec);
3691 push @vallist, ($$host,$$rectype,$$val,$ttl,$location,
3692 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
3693
3694 # hack hack PTHUI
3695 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
3696 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
3697 # mainly needed for crossover types that got coerced down to "standard" types
3698 if ($defrec eq 'n') {
3699 if ($$rectype == $reverse_typemap{PTR}) {
3700 $fields .= ",domain_id";
3701 push @vallist, 0;
3702 }
3703 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
3704 $fields .= ",rdns_id";
3705 push @vallist, 0;
3706 }
3707 }
3708 # fix fat-finger-originated record type changes
3709 if ($$rectype == 65285) {
3710 $fields .= ",rdns_id" if $revrec eq 'n';
3711 $fields .= ",domain_id" if $revrec eq 'y';
3712 push @vallist, 0;
3713 }
3714 if ($defrec eq 'n') {
3715 $domid = $parid if $revrec eq 'n';
3716 $revid = $parid if $revrec eq 'y';
3717 }
3718
3719 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
3720 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
3721 # will be maintained (due to "not-in-zone" validation changes)
3722 my %logdata;
3723 $logdata{domain_id} = $domid;
3724 $logdata{rdns_id} = $revid;
3725 my @ftmp = split /,/, $fields;
3726 for (my $i=0; $i <= $#vallist; $i++) {
3727 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3728 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3729 }
3730 $logdata{group_id} = $parid if $defrec eq 'y';
3731 $logdata{group_id} = parentID($dbh,
3732 (id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3733 if $defrec eq 'n';
3734 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
3735 # NS records for revzones get special treatment
3736 if ($revrec eq 'y' && $$rectype == 2) {
3737 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
3738 } else {
3739 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3740 }
3741 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3742 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3743 if $typemap{$oldrec->{type}} eq 'SRV';
3744 $logdata{entry} .= "', TTL $oldrec->{ttl}";
3745 $logdata{entry} .= ", location ".getLoc($dbh, $oldrec->{location})->{description} if $oldrec->{location};
3746 $logdata{entry} .= "\nto\n";
3747 # More NS special
3748 if ($revrec eq 'y' && $$rectype == 2) {
3749 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
3750 } else {
3751 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
3752 }
3753 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3754 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
3755 $logdata{entry} .= "', TTL $ttl";
3756 $logdata{entry} .= ", location ".getLoc($dbh, $location)->{description} if $location;
3757
3758 local $dbh->{AutoCommit} = 0;
3759 local $dbh->{RaiseError} = 1;
3760
3761 # Fiddle the field list into something suitable for updates
3762 $fields =~ s/,/=?,/g;
3763 $fields .= "=?";
3764
3765 eval {
3766 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
3767 _log($dbh, %logdata);
3768 $dbh->commit;
3769 };
3770 if ($@) {
3771 my $msg = $@;
3772 eval { $dbh->rollback; };
3773 if ($config{log_failures}) {
3774 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
3775 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3776 _log($dbh, %logdata);
3777 $dbh->commit;
3778 }
3779 return ('FAIL', $msg);
3780 }
3781
3782 $resultstr = $logdata{entry};
3783 return ($retcode, $retmsg);
3784} # end updateRec()
3785
3786
3787## DNSDB::delRec()
3788# Delete a record.
3789sub delRec {
3790 $errstr = '';
3791 my $dbh = shift;
3792 my $defrec = shift;
3793 my $revrec = shift;
3794 my $id = shift;
3795
3796 my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
3797
3798 # Allow transactions, and raise an exception on errors so we can catch it later.
3799 # Use local to make sure these get "reset" properly on exiting this block
3800 local $dbh->{AutoCommit} = 0;
3801 local $dbh->{RaiseError} = 1;
3802
3803 # Put together the log entry
3804 my %logdata;
3805 $logdata{domain_id} = $oldrec->{domain_id};
3806 $logdata{rdns_id} = $oldrec->{rdns_id};
3807 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
3808 $logdata{group_id} = parentID($dbh,
3809 (id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3810 if $defrec eq 'n';
3811 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
3812 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3813 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3814 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3815 if $typemap{$oldrec->{type}} eq 'SRV';
3816 $logdata{entry} .= "', TTL $oldrec->{ttl}";
3817 $logdata{entry} .= ", location ".getLoc($dbh, $oldrec->{location})->{description} if $oldrec->{location};
3818
3819 eval {
3820 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
3821 _log($dbh, %logdata);
3822 $dbh->commit;
3823 };
3824 if ($@) {
3825 my $msg = $@;
3826 eval { $dbh->rollback; };
3827 if ($config{log_failures}) {
3828 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
3829 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3830 _log($dbh, %logdata);
3831 $dbh->commit;
3832 }
3833 return ('FAIL', $msg);
3834 }
3835
3836 return ('OK',$logdata{entry});
3837} # end delRec()
3838
3839
3840## DNSDB::getLogCount()
3841# Get a count of log entries
3842# Takes a database handle and a hash containing at least:
3843# - Entity ID and entity type as the primary log "slice"
3844sub getLogCount {
3845 my $dbh = shift;
3846
3847 my %args = @_;
3848
3849 my @filterargs;
3850##fixme: which fields do we want to filter on?
3851# push @filterargs,
3852
3853 $errstr = 'Missing primary parent ID and/or type';
3854 # fail early if we don't have a "prime" ID to look for log entries for
3855 return if !$args{id};
3856
3857 # or if the prime id type is missing or invalid
3858 return if !$args{logtype};
3859 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3860 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
3861 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
3862
3863 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3864
3865 my $sql = "SELECT count(*) FROM log ".
3866 "WHERE $id_col{$args{logtype}}=?".
3867 ($args{filter} ? " AND entry ~* ?" : '');
3868 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
3869 $errstr = $dbh->errstr if !$count;
3870 return $count;
3871} # end getLogCount()
3872
3873
3874## DNSDB::getLogEntries()
3875# Get a list of log entries
3876# Takes arguments as with getLogCount() above, plus optional:
3877# - sort field
3878# - sort order
3879# - offset for pagination
3880sub getLogEntries {
3881 my $dbh = shift;
3882
3883 my %args = @_;
3884
3885 my @filterargs;
3886
3887 # fail early if we don't have a "prime" ID to look for log entries for
3888 return if !$args{id};
3889
3890 # or if the prime id type is missing or invalid
3891 return if !$args{logtype};
3892 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3893 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
3894 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
3895
3896 # Sorting defaults
3897 $args{sortby} = 'stamp' if !$args{sortby};
3898 $args{sortorder} = 'DESC' if !$args{sortorder};
3899 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
3900
3901 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
3902 $args{sortby} = $sortmap{$args{sortby}};
3903
3904 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
3905 "date_trunc('second',stamp) AS logtime ".
3906 "FROM log ".
3907 "WHERE $id_col{$args{logtype}}=?".
3908 ($args{filter} ? " AND entry ~* ?" : '').
3909 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
3910 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
3911 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
3912 $errstr = $dbh->errstr if !$loglist;
3913 return $loglist;
3914} # end getLogEntries()
3915
3916
3917## DNSDB::getTypelist()
3918# Get a list of record types for various UI dropdowns
3919# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
3920# Returns an arrayref to list of hashrefs perfect for HTML::Template
3921sub getTypelist {
3922 my $dbh = shift;
3923 my $recgroup = shift;
3924 my $type = shift || $reverse_typemap{A};
3925
3926 # also accepting $webvar{revrec}!
3927 $recgroup = 'f' if $recgroup eq 'n';
3928 $recgroup = 'r' if $recgroup eq 'y';
3929
3930 my $sql = "SELECT val,name FROM rectypes WHERE ";
3931 if ($recgroup eq 'r') {
3932 # reverse zone types
3933 $sql .= "stdflag=2 OR stdflag=3";
3934 } elsif ($recgroup eq 'l') {
3935 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
3936 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
3937 } else {
3938 # default; forward zone types. technically $type eq 'f' but not worth the error message.
3939 $sql .= "stdflag=1 OR stdflag=2";
3940 }
3941 $sql .= " ORDER BY listorder";
3942
3943 my $sth = $dbh->prepare($sql);
3944 $sth->execute;
3945 my @typelist;
3946 while (my ($rval,$rname) = $sth->fetchrow_array()) {
3947 my %row = ( recval => $rval, recname => $rname );
3948 $row{tselect} = 1 if $rval == $type;
3949 push @typelist, \%row;
3950 }
3951
3952 # Add SOA on lookups since it's not listed in other dropdowns.
3953 if ($recgroup eq 'l') {
3954 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
3955 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
3956 push @typelist, \%row;
3957 }
3958
3959 return \@typelist;
3960} # end getTypelist()
3961
3962
3963## DNSDB::parentID()
3964# Get ID of entity that is nearest parent to requested id
3965# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
3966# (domain/reverse zone or group), and optional default/live and forward/reverse flags
3967# Returns the ID or undef on failure
3968sub parentID {
3969 my $dbh = shift;
3970
3971 my %args = @_;
3972
3973 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
3974 $args{partype} = 'group' if !$args{partype};
3975 $args{partype} = 'domain' if $args{partype} eq 'revzone';
3976
3977 # clean up defrec and revrec. default to live record, forward zone
3978 $args{defrec} = 'n' if !$args{defrec};
3979 $args{revrec} = 'n' if !$args{revrec};
3980
3981 if ($par_type{$args{partype}} eq 'domain') {
3982 # only live records can have a domain/zone parent
3983 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
3984 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
3985 " FROM records WHERE record_id = ?",
3986 undef, ($args{id}) ) or return;
3987 return $result;
3988 } else {
3989 # snag some arguments that will either fall through or be overwritten to save some code duplication
3990 my $tmpid = $args{id};
3991 my $type = $args{type};
3992 if ($type eq 'record' && $args{defrec} eq 'n') {
3993 # Live records go through the records table first.
3994 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
3995 " FROM records WHERE record_id = ?",
3996 undef, ($args{id}) ) or return;
3997 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
3998 }
3999 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
4000 undef, ($tmpid) );
4001 return $result;
4002 }
4003# should be impossible to get here with even remotely sane arguments
4004 return;
4005} # end parentID()
4006
4007
4008## DNSDB::isParent()
4009# Returns true if $id1 is a parent of $id2, false otherwise
4010sub isParent {
4011 my $dbh = shift;
4012 my $id1 = shift;
4013 my $type1 = shift;
4014 my $id2 = shift;
4015 my $type2 = shift;
4016##todo: immediate, secondary, full (default)
4017
4018 # Return false on invalid types
4019 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4020 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
4021
4022 # Return false on impossible relations
4023 return 0 if $type1 eq 'record'; # nothing may be a child of a record
4024 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
4025 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
4026 return 0 if $type1 eq 'user'; # nothing may be child of a user
4027 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
4028 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
4029
4030 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
4031 # case would be the UI creating a new <thing>, and so we don't have an ID for
4032 # <thing> to look up yet. in that case the UI should check the parent as well.
4033 return 0 if $id1 == 0; # nothing can have a parent id of 0
4034 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
4035
4036 # group 1 is the ultimate root parent
4037 return 1 if $type1 eq 'group' && $id1 == 1;
4038
4039 # groups are always (a) parent of themselves
4040 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
4041
4042 my $id = $id2;
4043 my $type = $type2;
4044 my $foundparent = 0;
4045
4046 # Records are the only entity with two possible parents. We need to split the parent checks on
4047 # domain/rdns.
4048 if ($type eq 'record') {
4049 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
4050 undef, ($id));
4051 # check immediate parent against request
4052 return 1 if $type1 eq 'domain' && $id1 == $dom;
4053 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
4054 # if request is group, check *both* parents. Only check if the parent is nonzero though.
4055 return 1 if $dom && isParent($dbh, $id1, $type1, $dom, 'domain');
4056 return 1 if $rdns && isParent($dbh, $id1, $type1, $rdns, 'revzone');
4057 # exit here since we've executed the loop below by proxy in the above recursive calls.
4058 return 0;
4059 }
4060
4061# almost the same loop as getParents() above
4062 my $limiter = 0;
4063 while (1) {
4064 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
4065 my $result = $dbh->selectrow_hashref($sql,
4066 undef, ($id) );
4067 if (!$result) {
4068 $limiter++;
4069##fixme: how often will this happen on a live site? fail at max limiter <n>?
4070 warn "no results looking for $sql with id $id (depth $limiter)\n";
4071 last;
4072 }
4073 if ($result && $result->{$par_col{$type}} == $id1) {
4074 $foundparent = 1;
4075 last;
4076 } else {
4077##fixme: do we care about trying to return a "no such record/domain/user/group" error?
4078# should be impossible to create an inconsistent DB just with API calls.
4079 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
4080 }
4081 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
4082 last if $result->{$par_col{$type}} == 1;
4083 $id = $result->{$par_col{$type}};
4084 $type = $par_type{$type};
4085 }
4086
4087 return $foundparent;
4088} # end isParent()
4089
4090
4091## DNSDB::zoneStatus()
4092# Returns and optionally sets a zone's status
4093# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
4094# Returns status, or undef on errors.
4095sub zoneStatus {
4096 my $dbh = shift;
4097 my $id = shift;
4098 my $revrec = shift;
4099 my $newstatus = shift || 'mu';
4100
4101 return undef if $id !~ /^\d+$/;
4102
4103 # Allow transactions, and raise an exception on errors so we can catch it later.
4104 # Use local to make sure these get "reset" properly on exiting this block
4105 local $dbh->{AutoCommit} = 0;
4106 local $dbh->{RaiseError} = 1;
4107
4108 if ($newstatus ne 'mu') {
4109 # ooo, fun! let's see what we were passed for status
4110 eval {
4111 $newstatus = 0 if $newstatus eq 'domoff';
4112 $newstatus = 1 if $newstatus eq 'domon';
4113 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
4114 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
4115
4116##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
4117 $resultstr = "Changed ".($revrec eq 'n' ? domainName($dbh, $id) : revName($dbh, $id)).
4118 " state to ".($newstatus ? 'active' : 'inactive');
4119
4120 my %loghash;
4121 $loghash{domain_id} = $id if $revrec eq 'n';
4122 $loghash{rdns_id} = $id if $revrec eq 'y';
4123 $loghash{group_id} = parentID($dbh,
4124 (id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
4125 $loghash{entry} = $resultstr;
4126 _log($dbh, %loghash);
4127
4128 $dbh->commit;
4129 };
4130 if ($@) {
4131 my $msg = $@;
4132 eval { $dbh->rollback; };
4133 $resultstr = '';
4134 $errstr = $msg;
4135 return;
4136 }
4137 }
4138
4139 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
4140 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
4141 undef, ($id) );
4142 return $status;
4143} # end zoneStatus()
4144
4145
4146## DNSDB::importAXFR
4147# Import a domain via AXFR
4148# Takes AXFR host, domain to transfer, group to put the domain in,
4149# and optionally:
4150# - active/inactive state flag (defaults to active)
4151# - overwrite-SOA flag (defaults to off)
4152# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
4153# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
4154# if status is OK, but WARN includes conditions that are not fatal but should
4155# really be reported.
4156sub importAXFR {
4157 my $dbh = shift;
4158 my $ifrom_in = shift;
4159 my $zone = shift;
4160 my $group = shift;
4161 my $status = shift;
4162 $status = (defined($status) ? $status : 0); # force sane semantics, and allow passing "null" (inactive) status
4163 my $rwsoa = shift || 0;
4164 my $rwns = shift || 0;
4165 my $newttl = shift;
4166 my $merge = shift || 0; # do we attempt to merge A/AAAA and PTR records whenever possible?
4167 # do we overload this with the fixme below?
4168##fixme: add mode to delete&replace, merge+overwrite, merge new?
4169
4170 my $nrecs = 0;
4171 my $soaflag = 0;
4172 my $nsflag = 0;
4173 my $warnmsg = '';
4174 my $ifrom;
4175
4176 my $rev = 'n';
4177 my $code = 'OK';
4178 my $msg = 'foobar?';
4179
4180 # choke on possible bad setting in ifrom
4181 # IPv4 and v6, and valid hostnames!
4182 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4183 return ('FAIL', "Bad AXFR source host $ifrom")
4184 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
4185
4186 my $errmsg;
4187
4188 my $zone_id;
4189 my $domain_id = 0;
4190 my $rdns_id = 0;
4191 my $cidr;
4192
4193# magic happens! detect if we're importing a domain or a reverse zone
4194# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
4195# or what the formal .arpa zone is (if we got a CIDR netblock)
4196# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
4197
4198 if ($zone =~ m{(?:\.arpa\.?|/\d+)$}) {
4199 # we seem to have a reverse zone
4200 $rev = 'y';
4201
4202 if ($zone =~ /\.arpa\.?$/) {
4203 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
4204 ($code,$msg) = _zone2cidr($zone);
4205 return ($code, $msg) if $code eq 'FAIL';
4206 $cidr = $msg;
4207 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
4208 # v4 revzone, CIDR netblock
4209 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4210 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
4211 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
4212 # v6 revzone, CIDR netblock
4213 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
4214 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
4215 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
4216 } else {
4217 # there is. no. else!
4218 return ('FAIL', "Unknown zone name format");
4219 }
4220
4221 # quick check to start to see if we've already got one
4222
4223 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
4224 undef, ("$cidr"));
4225 $rdns_id = $zone_id;
4226 } else {
4227 # default to domain
4228 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
4229 undef, ($zone));
4230 $domain_id = $zone_id;
4231 }
4232
4233 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
4234
4235 # little local utility sub to swap $val and $host for revzone records.
4236 sub _revswap {
4237 my $rechost = shift;
4238 my $recdata = shift;
4239
4240 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
4241 $rechost =~ s/\.in-addr\.arpa\.?$//;
4242 $rechost = join '.', reverse split /\./, $rechost;
4243 } else {
4244 $rechost =~ s/\.ip6\.arpa\.?$//;
4245 my @nibs = reverse split /\./, $rechost;
4246 $rechost = '';
4247 my $nc;
4248 foreach (@nibs) {
4249 $rechost.= $_;
4250 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
4251 }
4252 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
4253##fixme: there's a case that ends up with a partial entry here:
4254# ip:add:re:ss::
4255# can't reproduce after letting it sit overnight after discovery. :(
4256#print "$rechost\n";
4257 # canonicalize with NetAddr::IP
4258 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
4259 }
4260 return ($recdata,$rechost)
4261 }
4262
4263
4264 # Allow transactions, and raise an exception on errors so we can catch it later.
4265 # Use local to make sure these get "reset" properly on exiting this block
4266 local $dbh->{AutoCommit} = 0;
4267 local $dbh->{RaiseError} = 1;
4268
4269 my $sth;
4270 eval {
4271
4272 if ($rev eq 'n') {
4273##fixme: serial
4274 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($zone,$group,$status) );
4275 # get domain id so we can do the records
4276 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
4277 $domain_id = $zone_id;
4278 _log($dbh, (group_id => $group, domain_id => $domain_id,
4279 entry => "[Added ".($status ? 'active' : 'inactive')." domain $zone via AXFR]") );
4280 } else {
4281##fixme: serial
4282 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($cidr,$group,$status) );
4283 # get revzone id so we can do the records
4284 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
4285 $rdns_id = $zone_id;
4286 _log($dbh, (group_id => $group, rdns_id => $rdns_id,
4287 entry => "[Added ".($status ? 'active' : 'inactive')." reverse zone $cidr via AXFR]") );
4288 }
4289
4290## bizarre DBI<->Net::DNS interaction bug:
4291## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
4292## fixed, apparently I was doing *something* odd, but not certain what it was that
4293## caused a commit instead of barfing
4294
4295 my $res = Net::DNS::Resolver->new;
4296 $res->nameservers($ifrom);
4297 $res->axfr_start($zone)
4298 or die "Couldn't begin AXFR\n";
4299
4300 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
4301 " VALUES (?,?,?,?,?,?,?,?,?)");
4302
4303 # Stash info about sub-octet v4 revzones here so we don't have
4304 # to store the CNAMEs used to delegate a suboctet zone
4305 # $suboct{zone}{ns}[] -> array of nameservers
4306 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
4307## commented pending actual use of this data. for now, we'll just
4308## auto-(re)create the CNAMEs in revzones on export
4309# my %suboct;
4310
4311 while (my $rr = $res->axfr_next()) {
4312
4313 my $val;
4314 my $distance = 0;
4315 my $weight = 0;
4316 my $port = 0;
4317 my $logfrag = '';
4318
4319 my $type = $rr->type;
4320 my $host = $rr->name;
4321 my $ttl = ($newttl ? $newttl : $rr->ttl); # allow force-override TTLs
4322
4323 $soaflag = 1 if $type eq 'SOA';
4324 $nsflag = 1 if $type eq 'NS';
4325
4326# "Primary" types:
4327# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
4328# maybe KEY
4329
4330# BIND supports:
4331# [standard]
4332# A AAAA CNAME MX NS PTR SOA TXT
4333# [variously experimental, obsolete, or obscure]
4334# 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
4335# ... if one can ever find the right magic to format them correctly
4336
4337# Net::DNS supports:
4338# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
4339# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
4340# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
4341
4342# nasty big ugly case-like thing here, since we have to do *some* different
4343# processing depending on the record. le sigh.
4344
4345##fixme: what record types other than TXT can/will have >255-byte payloads?
4346
4347 if ($type eq 'A') {
4348 $val = $rr->address;
4349 } elsif ($type eq 'NS') {
4350# hmm. should we warn here if subdomain NS'es are left alone?
4351 next if ($rwns && ($rr->name eq $zone));
4352 if ($rev eq 'y') {
4353 # revzones have records more or less reversed from forward zones.
4354 my ($tmpcode,$tmpmsg) = _zone2cidr($host);
4355 die "Error converting NS record: $tmpmsg\n" if $tmpcode eq 'FAIL'; # hmm. may not make sense...
4356 $val = "$tmpmsg";
4357 $host = $rr->nsdname;
4358 $logfrag = "Added record '$val $type $host', TTL $ttl";
4359# Tag and preserve. For now this is commented for a no-op, but we have Ideas for
4360# another custom storage type ("DELEGATE") that will use these subzone-delegation records
4361#if ($val ne "$cidr") {
4362# push @{$suboct{$val}{ns}}, $host;
4363#}
4364 } else {
4365 $val = $rr->nsdname;
4366 }
4367 $nsflag = 1;
4368 } elsif ($type eq 'CNAME') {
4369 if ($rev eq 'y') {
4370 # hmm. do we even want to bother with storing these at this level? Sub-octet delegation
4371 # by CNAME is essentially a record-publication hack, and we want to just represent the
4372 # "true" logical intentions as far down the stack as we can from the UI.
4373 ($host,$val) = _revswap($host,$rr->cname);
4374 $logfrag = "Added record '$val $type $host', TTL $ttl";
4375# Tag and preserve in case we want to commit them as-is later, but mostly we don't care.
4376# Commented pending actually doing something with possibly new type DELEGATE
4377#my $tmprev = $host;
4378#$tmprev =~ s/^\d+\.//;
4379#($code,$tmprev) = _zone2cidr($tmprev);
4380#push @{$suboct{"$tmprev"}{cname}}, $val;
4381 # Silently skip CNAMEs in revzones.
4382 next;
4383 } else {
4384 $val = $rr->cname;
4385 }
4386 } elsif ($type eq 'SOA') {
4387 next if $rwsoa;
4388 $host = $rr->rname.":".$rr->mname;
4389 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
4390 $soaflag = 1;
4391 } elsif ($type eq 'PTR') {
4392 ($host,$val) = _revswap($host,$rr->ptrdname);
4393 $logfrag = "Added record '$val $type $host', TTL $ttl";
4394 # hmm. PTR records should not be in forward zones.
4395 } elsif ($type eq 'MX') {
4396 $val = $rr->exchange;
4397 $distance = $rr->preference;
4398 } elsif ($type eq 'TXT') {
4399##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
4400## but don't really seem enthusiastic about it.
4401#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
4402# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
4403# char_str_list returns a list of the individual string fragments in the record
4404# txtdata returns the more useful all-in-one form (since we want to push such protocol
4405# details as far down the stack as we can)
4406# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
4407 if ($rev eq 'y') {
4408 ($host,$val) = _revswap($host,$rr->txtdata);
4409 $logfrag = "Added record '$val $type $host', TTL $ttl";
4410 } else {
4411 $val = $rr->txtdata;
4412 }
4413 } elsif ($type eq 'SPF') {
4414##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4415 $val = $rr->txtdata;
4416 } elsif ($type eq 'AAAA') {
4417 $val = $rr->address;
4418 } elsif ($type eq 'SRV') {
4419 $val = $rr->target;
4420 $distance = $rr->priority;
4421 $weight = $rr->weight;
4422 $port = $rr->port;
4423 } elsif ($type eq 'KEY') {
4424 # we don't actually know what to do with these...
4425 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4426 } else {
4427 $val = $rr->rdatastr;
4428 # Finding a different record type is not fatal.... just problematic.
4429 # We may not be able to export it correctly.
4430 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4431 }
4432
4433 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
4434
4435 if ($merge) {
4436 if ($rev eq 'n') {
4437 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
4438 my $etype;
4439 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
4440 "WHERE host=? AND val=? AND type=12",
4441 undef, ($host, $val) );
4442 if ($erid) {
4443 if ($type eq 'A') { # PTR -> A+PTR
4444 $etype = 65280;
4445 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
4446 }
4447 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
4448 $etype = 65281;
4449 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
4450 }
4451 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4452 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
4453 ($domain_id, $ettl, $etype, $erid));
4454 $nrecs++;
4455 _log($dbh, (group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry) );
4456 next; # while axfr_next
4457 }
4458 } # $rev eq 'n'
4459 else {
4460 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
4461 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
4462 "WHERE host=? AND val=? AND (type=1 OR type=28)",
4463 undef, ($host, $val) );
4464 if ($erid) {
4465 if ($etype == 1) { # A -> A+PTR
4466 $etype = 65280;
4467 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
4468 }
4469 if ($etype == 28) { # AAAA -> AAAA+PTR
4470 $etype = 65281;
4471 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
4472 }
4473 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4474 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
4475 ($rdns_id, $ettl, $etype, $erid));
4476 $nrecs++;
4477 _log($dbh, (group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry) );
4478 next; # while axfr_next
4479 }
4480 } # $rev eq 'y'
4481 } # if $merge
4482
4483 # Insert the new record
4484 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
4485 $distance, $weight, $port, $ttl);
4486
4487 $nrecs++;
4488
4489 if ($type eq 'SOA') {
4490 # also !$rwsoa, but if that's set, it should be impossible to get here.
4491 my @tmp1 = split /:/, $host;
4492 my @tmp2 = split /:/, $val;
4493 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
4494 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
4495 } elsif ($logfrag) {
4496 # special case for log entries we need to meddle with a little.
4497 $logentry .= $logfrag;
4498 } else {
4499 $logentry .= "Added record '$host $type";
4500 $logentry .= " [distance $distance]" if $type eq 'MX';
4501 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
4502 $logentry .= " $val', TTL $ttl";
4503 }
4504 _log($dbh, (group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry) );
4505
4506 } # while axfr_next
4507
4508# Detect and handle delegated subzones
4509# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
4510#foreach (keys %suboct) {
4511# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
4512# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
4513#}
4514
4515 # Overwrite SOA record
4516 if ($rwsoa) {
4517 $soaflag = 1;
4518 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4519 my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4520 $sthgetsoa->execute($group,$reverse_typemap{SOA});
4521 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
4522 $host =~ s/DOMAIN/$zone/g;
4523 $val =~ s/DOMAIN/$zone/g;
4524 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
4525 }
4526 }
4527
4528 # Overwrite NS records
4529 if ($rwns) {
4530 $nsflag = 1;
4531 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4532 my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4533 $sthgetns->execute($group,$reverse_typemap{NS});
4534 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
4535 $host =~ s/DOMAIN/$zone/g;
4536 $val =~ s/DOMAIN/$zone/g;
4537 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
4538 }
4539 }
4540
4541 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
4542 die "Bad zone: No SOA record!\n" if !$soaflag;
4543 die "Bad zone: No NS records!\n" if !$nsflag;
4544
4545 $dbh->commit;
4546
4547 };
4548
4549 if ($@) {
4550 my $msg = $@;
4551 eval { $dbh->rollback; };
4552 return ('FAIL',$msg." $warnmsg");
4553 } else {
4554 return ('WARN', $warnmsg) if $warnmsg;
4555 return ('OK',"Imported OK");
4556 }
4557
4558 # it should be impossible to get here.
4559 return ('WARN',"OOOK!");
4560} # end importAXFR()
4561
4562
4563## DNSDB::importBIND()
4564sub importBIND {
4565} # end importBIND()
4566
4567
4568## DNSDB::import_tinydns()
4569sub import_tinydns {
4570} # end import_tinydns()
4571
4572
4573## DNSDB::export()
4574# Export the DNS database, or a part of it
4575# Takes database handle, export type, optional arguments depending on type
4576# Writes zone data to targets as appropriate for type
4577sub export {
4578 my $dbh = shift;
4579 my $target = shift;
4580
4581 if ($target eq 'tiny') {
4582 __export_tiny($dbh,@_);
4583 }
4584# elsif ($target eq 'foo') {
4585# __export_foo($dbh,@_);
4586#}
4587# etc
4588
4589} # end export()
4590
4591
4592## DNSDB::__export_tiny
4593# Internal sub to implement tinyDNS (compatible) export
4594# Takes database handle, filehandle to write export to, optional argument(s)
4595# to determine which data gets exported
4596sub __export_tiny {
4597 my $dbh = shift;
4598 my $datafile = shift;
4599
4600##fixme: slurp up further options to specify particular zone(s) to export
4601
4602##fixme: fail if $datafile isn't an open, writable file
4603
4604 # easy case - export all evarything
4605 # not-so-easy case - export item(s) specified
4606 # todo: figure out what kind of list we use to export items
4607
4608# raw packet in unknown format: first byte indicates length
4609# of remaining data, allows up to 255 raw bytes
4610
4611 # Locations/views - worth including in the caching setup?
4612 my $lochash = $dbh->selectall_hashref("SELECT location,iplist FROM locations", 'location');
4613 foreach my $location (keys %$lochash) {
4614 foreach my $ipprefix (split /[,\s]+/, $lochash->{$location}{iplist}) {
4615 $ipprefix =~ s/\s+//g;
4616 print $datafile "%$location:$ipprefix\n";
4617 }
4618 print $datafile "%$location\n" if !$lochash->{$location}{iplist};
4619 }
4620
4621 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
4622 my %recflags;
4623
4624 my $domsth = $dbh->prepare("SELECT domain_id,domain,status,changed FROM domains WHERE status=1");
4625 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
4626 "FROM records WHERE domain_id=? AND type < 65280"); # Just exclude all types relating to rDNS
4627 my $zonesth = $dbh->prepare("UPDATE domains SET changed='n' WHERE domain_id=?");
4628 $domsth->execute();
4629 while (my ($domid,$dom,$domstat,$changed) = $domsth->fetchrow_array) {
4630##fixme: need to find a way to block opening symlinked files without introducing a race.
4631# O_NOFOLLOW
4632# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
4633# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
4634# still be followed.
4635# but that doesn't help other platforms. :/
4636 sysopen(ZONECACHE, "$config{exportcache}/$dom", O_RDWR|O_CREAT);
4637 flock(ZONECACHE, LOCK_EX);
4638 if ($changed || -s "$config{exportcache}/$dom" == 0) {
4639 $recsth->execute($domid);
4640 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc) = $recsth->fetchrow_array) {
4641 next if $recflags{$recid};
4642
4643 $loc = '' if !$loc; # de-nullify - just in case
4644##fixme: handle case of record-with-location-that-doesn't-exist better.
4645# note this currently fails safe (tested) - records with a location that
4646# doesn't exist will not be sent to any client
4647# $loc = '' if !$lochash->{$loc};
4648
4649##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4650# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4651# timestamps are TAI64
4652# ~~ 2^62 + time()
4653 my $stamp = '';
4654
4655 # support tinydns' auto-TTL
4656 $ttl = '' if $ttl == '0';
4657
4658 # Spaces are evil.
4659 $host =~ s/^\s+//;
4660 $host =~ s/\s+$//;
4661 if ($typemap{$type} ne 'TXT') {
4662 # Leading or trailng spaces could be legit in TXT records.
4663 $val =~ s/^\s+//;
4664 $val =~ s/\s+$//;
4665 }
4666
4667 _printrec_tiny($datafile, 'n', \%recflags,
4668 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
4669
4670 _printrec_tiny(*ZONECACHE, 'n', \%recflags,
4671 $dom, $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp)
4672 if *ZONECACHE;
4673 # in case the zone shrunk, get rid of garbage at the end of the file.
4674 truncate(ZONECACHE, tell(ZONECACHE));
4675
4676 $recflags{$recid} = 1;
4677 } # while ($recsth)
4678 } else {
4679 # domain not changed, stream from cache
4680 print $datafile $_ while <ZONECACHE>;
4681 }
4682 close ZONECACHE;
4683 # mark domain as unmodified
4684 $zonesth->execute($domid);
4685 } # while ($domsth)
4686
4687 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status,changed FROM revzones WHERE status=1 ".
4688 "ORDER BY masklen(revnet) DESC");
4689
4690# For reasons unknown, we can't sanely UNION these statements. Feh.
4691# Supposedly it should work though (note last 3 lines):
4692## PG manual
4693#UNION Clause
4694#
4695#The UNION clause has this general form:
4696#
4697# select_statement UNION [ ALL ] select_statement
4698#
4699#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
4700#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
4701#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
4702 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
4703 "FROM records WHERE rdns_id=? AND type=6");
4704 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id,location ".
4705 "FROM records WHERE rdns_id=? AND not type=6 ".
4706 "ORDER BY masklen(CAST(val AS inet)) DESC, CAST(val AS inet)");
4707 $zonesth = $dbh->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?");
4708 $revsth->execute();
4709 while (my ($revid,$revzone,$revstat,$changed) = $revsth->fetchrow_array) {
4710##fixme: need to find a way to block opening symlinked files without introducing a race.
4711# O_NOFOLLOW
4712# If pathname is a symbolic link, then the open fails. This is a FreeBSD extension, which was
4713# added to Linux in version 2.1.126. Symbolic links in earlier components of the pathname will
4714# still be followed.
4715# but that doesn't help other platforms. :/
4716 my $tmpzone = NetAddr::IP->new($revzone);
4717 sysopen(ZONECACHE, "$config{exportcache}/".$tmpzone->network->addr, O_RDWR|O_CREAT);
4718 flock(ZONECACHE, LOCK_EX);
4719 if ($changed || -s "$config{exportcache}/".$tmpzone->network->addr == 0) {
4720 # need to fetch this separately since the rest of the records all (should) have real IPs in val
4721 $soasth->execute($revid);
4722 my (@zsoa) = $soasth->fetchrow_array();
4723 _printrec_tiny($datafile,'y',\%recflags,$revzone,
4724 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
4725 _printrec_tiny(*ZONECACHE,'y',\%recflags,$revzone,
4726 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],$zsoa[8],'');
4727
4728 $recsth->execute($revid);
4729 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid,$loc) = $recsth->fetchrow_array) {
4730 next if $recflags{$recid};
4731
4732 $loc = '' if !$loc; # de-nullify - just in case
4733##fixme: handle case of record-with-location-that-doesn't-exist better.
4734# note this currently fails safe (tested) - records with a location that
4735# doesn't exist will not be sent to any client
4736# $loc = '' if !$lochash->{$loc};
4737
4738##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4739# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4740# timestamps are TAI64
4741# ~~ 2^62 + time()
4742 my $stamp = '';
4743
4744 # support tinydns' auto-TTL
4745 $ttl = '' if $ttl == '0';
4746
4747 _printrec_tiny($datafile, 'y', \%recflags, $revzone,
4748 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp);
4749 _printrec_tiny(*ZONECACHE, 'y', \%recflags, $revzone,
4750 $host, $type, $val, $dist, $weight, $port, $ttl, $loc, $stamp)
4751 if *ZONECACHE;
4752 # in case the zone shrunk, get rid of garbage at the end of the file.
4753 truncate(ZONECACHE, tell(ZONECACHE));
4754
4755 $recflags{$recid} = 1;
4756 } # while ($recsth)
4757 } else {
4758 # zone not changed, stream from cache
4759 print $datafile $_ while <ZONECACHE>;
4760 }
4761 close ZONECACHE;
4762 # mark domain as unmodified
4763 $zonesth->execute($revid);
4764 } # while ($domsth)
4765
4766} # end __export_tiny()
4767
4768
4769# Utility sub for __export_tiny above
4770sub _printrec_tiny {
4771 my ($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp) = @_;
4772
4773 ## Convert a bare number into an octal-coded pair of octets.
4774 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
4775 sub octalize {
4776 my $tmp = shift;
4777 my $srctype = shift || 'h'; # default assumes hex string
4778 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
4779 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
4780 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
4781 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
4782 }
4783
4784## WARNING: This works to export even the whole Internet's worth of IP space...
4785## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
4786## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
4787## 0/0 is estimated to take ~54 hours and ~256G of disk
4788## RAM usage depends on how many non-template entries you have in the set.
4789## This should probably be done on record addition rather than export; large blocks may need to be done in a
4790## forked process
4791 sub __publish_subnet {
4792 my $sub = shift;
4793 my $recflags = shift;
4794 my $hpat = shift;
4795 my $fh = shift;
4796 my $ttl = shift;
4797 my $stamp = shift;
4798 my $loc = shift;
4799 my $ptronly = shift || 0;
4800
4801 my $iplist = $sub->splitref(32);
4802 foreach (@$iplist) {
4803 my $ip = $_->addr;
4804 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
4805 next if $ip =~ /\.(0|255)$/;
4806 next if $$recflags{$ip};
4807 $$recflags{$ip}++;
4808 my $rec = $hpat; # start fresh with the template for each IP
4809 _template4_expand(\$rec, $ip);
4810 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
4811 ":$ttl:$stamp:$loc\n";
4812 }
4813 }
4814
4815##fixme? append . to all host/val hostnames
4816 if ($typemap{$type} eq 'SOA') {
4817
4818 # host contains pri-ns:responsible
4819 # val is abused to contain refresh:retry:expire:minttl
4820##fixme: "manual" serial vs tinydns-autoserial
4821 # let's be explicit about abusing $host and $val
4822 my ($email, $primary) = (split /:/, $host)[0,1];
4823 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
4824 if ($revrec eq 'y') {
4825##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
4826# what about v6?
4827# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
4828 $zone = NetAddr::IP->new($zone);
4829 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
4830 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
4831 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
4832 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
4833 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
4834 }
4835 return; # skips "default" bits just below
4836 }
4837 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
4838 }
4839 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
4840
4841 } elsif ($typemap{$type} eq 'A') {
4842
4843 print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
4844
4845 } elsif ($typemap{$type} eq 'NS') {
4846
4847 if ($revrec eq 'y') {
4848 $val = NetAddr::IP->new($val);
4849 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
4850 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
4851 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
4852 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
4853 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
4854 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n";
4855 $$recflags{$szone2} = $val->masklen;
4856 }
4857 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
4858 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
4859 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
4860 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
4861 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n";
4862 $$recflags{$szone2} = $val->masklen;
4863 }
4864 } else {
4865 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
4866 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n";
4867 $$recflags{$val2} = $val->masklen;
4868 }
4869 } else {
4870 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
4871 }
4872
4873 } elsif ($typemap{$type} eq 'AAAA') {
4874
4875 print $datafile ":$host:28:";
4876 my $altgrp = 0;
4877 my @altconv;
4878 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
4879 foreach (split /:/, $val) {
4880 if (/^$/) {
4881 # flag blank entry; this is a series of 0's of (currently) unknown length
4882 $altconv[$altgrp++] = 's';
4883 } else {
4884 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
4885 $altconv[$altgrp++] = octalize($_)
4886 }
4887 }
4888 foreach my $octet (@altconv) {
4889 # if not 's', output
4890 print $datafile $octet unless $octet =~ /^s$/;
4891 # if 's', output (9-array length)x literal '\000\000'
4892 print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
4893 }
4894 print $datafile ":$ttl:$stamp:$loc\n";
4895
4896 } elsif ($typemap{$type} eq 'MX') {
4897
4898 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
4899
4900 } elsif ($typemap{$type} eq 'TXT') {
4901
4902##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
4903 if ($revrec eq 'n') {
4904 $val =~ s/:/\\072/g; # may need to replace other symbols
4905 print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
4906 } else {
4907 $host =~ s/:/\\072/g; # may need to replace other symbols
4908 my $val2 = NetAddr::IP->new($val);
4909 print $datafile "'"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
4910 ":$host:$ttl:$stamp:$loc\n";
4911 }
4912
4913# by-hand TXT
4914#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
4915#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
4916#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
4917
4918#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
4919#: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
4920
4921# very long TXT record as brought in by axfr-get
4922# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
4923# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
4924#:longtxt.deepnet.cx:16:
4925#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
4926#\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.
4927#\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.
4928#:3600
4929
4930 } elsif ($typemap{$type} eq 'CNAME') {
4931
4932 if ($revrec eq 'n') {
4933 print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
4934 } else {
4935 my $val2 = NetAddr::IP->new($val);
4936 print $datafile "C"._ZONE($val2, 'ZONE', 'r', '.').($val2->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
4937 ":$host:$ttl:$stamp:$loc\n";
4938 }
4939
4940 } elsif ($typemap{$type} eq 'SRV') {
4941
4942 # data is two-byte values for priority, weight, port, in that order,
4943 # followed by length/string data
4944
4945 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
4946
4947 $val .= '.' if $val !~ /\.$/;
4948 foreach (split /\./, $val) {
4949 printf $datafile "\\%0.3o%s", length($_), $_;
4950 }
4951 print $datafile "\\000:$ttl:$stamp:$loc\n";
4952
4953 } elsif ($typemap{$type} eq 'RP') {
4954
4955 # RP consists of two mostly free-form strings.
4956 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
4957 # The second is the "hostname" of a TXT record with more info.
4958 print $datafile ":$host:17:";
4959 my ($who,$what) = split /\s/, $val;
4960 foreach (split /\./, $who) {
4961 printf $datafile "\\%0.3o%s", length($_), $_;
4962 }
4963 print $datafile '\000';
4964 foreach (split /\./, $what) {
4965 printf $datafile "\\%0.3o%s", length($_), $_;
4966 }
4967 print $datafile "\\000:$ttl:$stamp:$loc\n";
4968
4969 } elsif ($typemap{$type} eq 'PTR') {
4970
4971 $zone = NetAddr::IP->new($zone);
4972 $$recflags{$val}++;
4973 if (!$zone->{isv6} && $zone->masklen > 24) {
4974 ($val) = ($val =~ /\.(\d+)$/);
4975 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
4976 ":$host:ttl:$stamp:$loc\n";
4977 } else {
4978 $val = NetAddr::IP->new($val);
4979 print $datafile "^".
4980 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
4981 ":$host:$ttl:$stamp:$loc\n";
4982 }
4983
4984 } elsif ($type == 65280) { # A+PTR
4985
4986 $$recflags{$val}++;
4987 print $datafile "=$host:$val:$ttl:$stamp:$loc\n";
4988
4989 } elsif ($type == 65281) { # AAAA+PTR
4990
4991#$$recflags{$val}++;
4992 # treat these as two separate records. since tinydns doesn't have
4993 # a native combined type, we have to create them separately anyway.
4994 if ($revrec eq 'n') {
4995 $type = 28;
4996 } else {
4997 $type = 12;
4998 }
4999 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
5000##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
5001# type 6 is for AAAA+PTR, type 3 is for AAAA
5002
5003 } elsif ($type == 65282) { # PTR template
5004
5005 # only useful for v4 with standard DNS software, since this expands all
5006 # IPs in $zone (or possibly $val?) with autogenerated records
5007 $val = NetAddr::IP->new($val);
5008 return if $val->{isv6};
5009
5010 if ($val->masklen <= 16) {
5011 foreach my $sub ($val->split(16)) {
5012 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5013 }
5014 } else {
5015 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
5016 }
5017
5018 } elsif ($type == 65283) { # A+PTR template
5019
5020 $val = NetAddr::IP->new($val);
5021 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
5022 return if $val->{isv6};
5023
5024 if ($val->masklen <= 16) {
5025 foreach my $sub ($val->split(16)) {
5026 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5027 }
5028 } else {
5029 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
5030 }
5031
5032 } elsif ($type == 65284) { # AAAA+PTR template
5033 # Stub for completeness. Could be exported to DNS software that supports
5034 # some degree of internal automagic in generic-record-creation
5035 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
5036
5037 } elsif ($type == 65285) { # Delegation
5038 # This is intended for reverse zones, but may prove useful in forward zones.
5039
5040 # All delegations need to create one or more NS records. The NS record handler knows what to do.
5041 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
5042 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
5043 if ($revrec eq 'y') {
5044 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
5045 # to redirect all of the individual IP lookups as well.
5046 # Not sure how this would actually resolve if a /24 or larger was delegated
5047 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
5048 my $dblock = NetAddr::IP->new($val);
5049 if (!$dblock->{isv6} && $dblock->masklen > 24) {
5050 my @subs = $dblock->split;
5051 foreach (@subs) {
5052 next if $$recflags{"$_"};
5053 my ($oct) = ($_->addr =~ /(\d+)$/);
5054 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
5055 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n";
5056 $$recflags{"$_"}++;
5057 }
5058 }
5059 }
5060
5061##
5062## Uncommon types. These will need better UI support Any Day Sometime Maybe(TM).
5063##
5064
5065 } elsif ($type == 44) { # SSHFP
5066 my ($algo,$fpt,$fp) = split /\s+/, $val;
5067
5068 my $rec = sprintf ":$host:44:\\%0.3o\\%0.3o", $algo, $fpt;
5069 while (my ($byte) = ($fp =~ /^(..)/) ) {
5070 $rec .= sprintf "\\%0.3o", hex($byte);
5071 $fp =~ s/^..//;
5072 }
5073 print $datafile "$rec:$ttl:$stamp:$loc\n";
5074
5075 } else {
5076 # raw record. we don't know what's in here, so we ASS-U-ME the user has
5077 # put it in correctly, since either the user is messing directly with the
5078 # database, or the record was imported via AXFR
5079 # <split by char>
5080 # convert anything not a-zA-Z0-9.- to octal coding
5081
5082##fixme: add flag to export "unknown" record types - note we'll probably end up
5083# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
5084 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
5085
5086 } # record type if-else
5087
5088} # end _printrec_tiny()
5089
5090
5091## DNSDB::mailNotify()
5092# Sends notification mail to recipients regarding a DNSDB operation
5093sub mailNotify {
5094 my $dbh = shift;
5095 my ($subj,$message) = @_;
5096
5097 return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
5098
5099 my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
5100
5101 my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
5102
5103 $mailer->mail($mailsender);
5104 $mailer->to($config{mailnotify});
5105 $mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
5106 "To: <$config{mailnotify}>\n",
5107 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
5108 "Subject: $subj\n",
5109 "X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
5110 "Organization: $config{orgname}\n",
5111 "\n$message\n");
5112 $mailer->quit;
5113}
5114
5115# shut Perl up
51161;
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