source: trunk/DNSDB.pm@ 348

Last change on this file since 348 was 347, checked in by Kris Deugau, 12 years ago

/trunk

Clean up dns.sql a little; some of this will be more important once
automagical table upgrades are implemented

  • set primary keys so we can't even accidentally add duplicate domains or revzones
  • bump dbversion in misc table

Fix buglet in _hostparent() that triggered if the hostname passed in
started with *.
  • Property svn:keywords set to Date Rev Author Id
File size: 162.4 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 347 2012-06-15 22:08:14Z 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 vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
33
34$VERSION = 1.1; ##VERSION##
35@ISA = qw(Exporter);
36@EXPORT_OK = qw(
37 &initGlobals &login &initActionLog
38 &initPermissions &getPermissions &changePermissions &comparePermissions
39 &changeGroup
40 &loadConfig &connectDB &finish
41 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
42 &getZoneCount &getZoneList
43 &addGroup &delGroup &getChildren &groupName
44 &getGroupCount &getGroupList
45 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
46 &getUserCount &getUserList &getUserDropdown
47 &getSOA &updateSOA &getRecLine &getDomRecs &getRecCount
48 &addRec &updateRec &delRec
49 &getLogCount &getLogEntries
50 &getTypelist
51 &parentID
52 &isParent
53 &zoneStatus &importAXFR
54 &export
55 &mailNotify
56 %typemap %reverse_typemap %config
57 %permissions @permtypes $permlist
58 );
59
60@EXPORT = (); # Export nothing by default.
61%EXPORT_TAGS = ( ALL => [qw(
62 &initGlobals &login &initActionLog
63 &initPermissions &getPermissions &changePermissions &comparePermissions
64 &changeGroup
65 &loadConfig &connectDB &finish
66 &addDomain &delZone &domainName &revName &domainID &revID &addRDNS
67 &getZoneCount &getZoneList
68 &addGroup &delGroup &getChildren &groupName
69 &getGroupCount &getGroupList
70 &addUser &updateUser &delUser &userFullName &userStatus &getUserData
71 &getUserCount &getUserList &getUserDropdown
72 &getSOA &updateSOA &getRecLine &getDomRecs &getRecCount
73 &addRec &updateRec &delRec
74 &getLogCount &getLogEntries
75 &getTypelist
76 &parentID
77 &isParent
78 &zoneStatus &importAXFR
79 &export
80 &mailNotify
81 %typemap %reverse_typemap %config
82 %permissions @permtypes $permlist
83 )]
84 );
85
86our $group = 1;
87our $errstr = '';
88our $resultstr = '';
89
90# Halfway sane defaults for SOA, TTL, etc.
91# serial defaults to 0 for convenience.
92# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
93our %def = qw (
94 contact hostmaster.DOMAIN
95 prins ns1.myserver.com
96 serial 0
97 soattl 86400
98 refresh 10800
99 retry 3600
100 expire 604800
101 minttl 10800
102 ttl 10800
103);
104
105# Arguably defined wholly in the db, but little reason to change without supporting code changes
106our @permtypes = qw (
107 group_edit group_create group_delete
108 user_edit user_create user_delete
109 domain_edit domain_create domain_delete
110 record_edit record_create record_delete
111 self_edit admin
112);
113our $permlist = join(',',@permtypes);
114
115# DNS record type map and reverse map.
116# loaded from the database, from http://www.iana.org/assignments/dns-parameters
117our %typemap;
118our %reverse_typemap;
119
120our %permissions;
121
122# Prepopulate a basic config. Note some of these *will* cause errors if left unset.
123# note: add appropriate stanzas in loadConfig to parse these
124our %config = (
125 # Database connection info
126 dbname => 'dnsdb',
127 dbuser => 'dnsdb',
128 dbpass => 'secret',
129 dbhost => '',
130
131 # Email notice settings
132 mailhost => 'smtp.example.com',
133 mailnotify => 'dnsdb@example.com', # to
134 mailsender => 'dnsdb@example.com', # from
135 mailname => 'DNS Administration',
136 orgname => 'Example Corp',
137 domain => 'example.com',
138
139 # Template directory
140 templatedir => 'templates/',
141# fmeh. this is a real web path, not a logical internal one. hm..
142# cssdir => 'templates/',
143 sessiondir => 'session/',
144
145 # Session params
146 timeout => '3600', # 1 hour default
147
148 # Other miscellanea
149 log_failures => 1, # log all evarthing by default
150 perpage => 15,
151 );
152
153## (Semi)private variables
154
155# Hash of functions for validating record types. Filled in initGlobals() since
156# it relies on visibility flags from the rectypes table in the DB
157my %validators;
158
159# Username, full name, ID - mainly for logging
160my %userdata;
161
162# Entity-relationship reference hashes.
163my %par_tbl = (
164 group => 'groups',
165 user => 'users',
166 defrec => 'default_records',
167 defrevrec => 'default_rev_records',
168 domain => 'domains',
169 revzone => 'revzones',
170 record => 'records'
171 );
172my %id_col = (
173 group => 'group_id',
174 user => 'user_id',
175 defrec => 'record_id',
176 defrevrec => 'record_id',
177 domain => 'domain_id',
178 revzone => 'rdns_id',
179 record => 'record_id'
180 );
181my %par_col = (
182 group => 'parent_group_id',
183 user => 'group_id',
184 defrec => 'group_id',
185 defrevrec => 'group_id',
186 domain => 'group_id',
187 revzone => 'group_id',
188 record => 'domain_id'
189 );
190my %par_type = (
191 group => 'group',
192 user => 'group',
193 defrec => 'group',
194 defrevrec => 'group',
195 domain => 'group',
196 revzone => 'group',
197 record => 'domain'
198 );
199
200##
201## utility functions
202##
203
204## DNSDB::_rectable()
205# Takes default+rdns flags, returns appropriate table name
206sub _rectable {
207 my $def = shift;
208 my $rev = shift;
209
210 return 'records' if $def ne 'y';
211 return 'default_records' if $rev ne 'y';
212 return 'default_rev_records';
213} # end _rectable()
214
215## DNSDB::_recparent()
216# Takes default+rdns flags, returns appropriate parent-id column name
217sub _recparent {
218 my $def = shift;
219 my $rev = shift;
220
221 return 'group_id' if $def eq 'y';
222 return 'rdns_id' if $rev eq 'y';
223 return 'domain_id';
224} # end _recparent()
225
226## DNSDB::_ipparent()
227# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
228# Takes a database handle, default and reverse flags, IP (fragment) to check, parent zone ID,
229# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
230# database insertion)
231sub _ipparent {
232 my $dbh = shift;
233 my $defrec = shift;
234 my $revrec = shift;
235 my $val = shift;
236 my $id = shift;
237 my $addr = shift;
238
239 return if $revrec ne 'y'; # this sub not useful in forward zones
240
241 $$addr = NetAddr::IP->new($$val); #necessary?
242
243 # subsub to split, reverse, and overlay an IP fragment on a netblock
244 sub __rev_overlay {
245 my $splitme = shift; # ':' or '.', m'lud?
246 my $parnet = shift;
247 my $val = shift;
248 my $addr = shift;
249
250 my $joinme = $splitme;
251 $splitme = '\.' if $splitme eq '.';
252 my @working = reverse(split($splitme, $parnet->addr));
253 my @parts = reverse(split($splitme, $$val));
254 for (my $i = 0; $i <= $#parts; $i++) {
255 $working[$i] = $parts[$i];
256 }
257 my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
258 return 0 unless $checkme->within($parnet);
259 $$addr = $checkme; # force "correct" IP to be recorded.
260 return 1;
261 }
262
263 my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
264 my $parnet = NetAddr::IP->new($parstr);
265
266 # Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
267 return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
268 return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
269
270 if ($$addr && ($$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/ || $$val =~ m|/\d+$|)) {
271 # the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address,
272 # or a netblock (only expected on templates)
273 # the rest we have to restructure before fiddling. *sigh*
274 return 1 if $$addr->within($parnet);
275 } else {
276 # We don't have a complete IP in $$val (yet)... unless we have a netblock
277 if ($parnet->addr =~ /:/) {
278 $$val =~ s/^:+//; # gotta strip'em all...
279 return __rev_overlay(':', $parnet, $val, $addr);
280 }
281 if ($parnet->addr =~ /\./) {
282 $$val =~ s/^\.+//;
283 return __rev_overlay('.', $parnet, $val, $addr);
284 }
285 # should be impossible to get here...
286 }
287 # ... and here.
288 # can't do nuttin' in forward zones
289} # end _ipparent()
290
291## DNSDB::_hostparent()
292# A little different than _ipparent above; this tries to *find* the parent zone of a hostname
293# Takes a database handle and hostname.
294# Returns the domain ID of the parent domain if one was found.
295sub _hostparent {
296 my $dbh = shift;
297 my $hname = shift;
298
299 $hname =~ s/^\*\.//; # this should be impossible to find in the domains table.
300 my @hostbits = split /\./, $hname;
301 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE domain = ? GROUP BY domain_id");
302 foreach (@hostbits) {
303 $sth->execute($hname);
304 my ($found, $parid) = $sth->fetchrow_array;
305 if ($found) {
306 return $parid;
307 }
308 $hname =~ s/^$_\.//;
309 }
310} # end _hostparent()
311
312## DNSDB::_log()
313# Log an action
314# Takes a database handle and log entry hash containing at least:
315# group_id, log entry
316# and optionally one or more of:
317# domain_id, rdns_id
318# The %userdata hash provides the user ID, username, and fullname
319sub _log {
320 my $dbh = shift;
321
322 my %args = @_;
323
324 $args{rdns_id} = 0 if !$args{rdns_id};
325 $args{domain_id} = 0 if !$args{domain_id};
326
327##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
328# if ($config{log_channel} eq 'sql') {
329 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
330 undef,
331 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
332 $userdata{userid}, $userdata{username}, $userdata{fullname}) );
333# } elsif ($config{log_channel} eq 'file') {
334# } elsif ($config{log_channel} eq 'syslog') {
335# }
336} # end _log
337
338
339##
340## Record validation subs.
341##
342
343## All of these subs take substantially the same arguments:
344# a database handle
345# a hash containing at least the following keys:
346# - defrec (default/live flag)
347# - revrec (forward/reverse flag)
348# - id (parent entity ID)
349# - host (hostname)
350# - rectype
351# - val (IP, hostname [CNAME/MX/SRV] or text)
352# - addr (NetAddr::IP object from val. May be undef.)
353# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
354# host, rectype, and addr should be references as these may be modified in validation
355
356# A record
357sub _validate_1 {
358 my $dbh = shift;
359
360 my %args = @_;
361
362 return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
363
364 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
365 # or the intended parent domain for live records.
366 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
367 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
368
369 # Check IP is well-formed, and that it's a v4 address
370 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
371 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
372 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
373 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
374 unless $args{addr} && !$args{addr}->{isv6};
375 # coerce IP/value to normalized form for storage
376 ${$args{val}} = $args{addr}->addr;
377
378 return ('OK','OK');
379} # done A record
380
381# NS record
382sub _validate_2 {
383 my $dbh = shift;
384
385 my %args = @_;
386
387 # Check that the target of the record is within the parent.
388 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
389 if ($args{defrec} eq 'n') {
390 # Check if IP/address/zone/"subzone" is within the parent
391 if ($args{revrec} eq 'y') {
392 my $tmpip = NetAddr::IP->new(${$args{val}});
393 my $pname = revName($dbh,$args{id});
394 return ('FAIL',"${$args{val}} not within $pname")
395 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
396 # Sub the returned thing for ZONE? This could get stupid if you have typos...
397 ${$args{val}} =~ s/ZONE/$tmpip->address/;
398 } else {
399 my $pname = domainName($dbh,$args{id});
400 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
401 }
402 } else {
403 # Default reverse NS records should always refer to the implied parent
404 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
405 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
406 }
407
408# Let this lie for now. Needs more magic.
409# # Check IP is well-formed, and that it's a v4 address
410# return ('FAIL',"A record must be a valid IPv4 address")
411# unless $addr && !$addr->{isv6};
412# # coerce IP/value to normalized form for storage
413# $$val = $addr->addr;
414
415 return ('OK','OK');
416} # done NS record
417
418# CNAME record
419sub _validate_5 {
420 my $dbh = shift;
421
422 my %args = @_;
423
424# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
425# This is fundamentally a messy operation and should really just be taken care of by the
426# export process, not manual maintenance of the necessary records.
427 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
428
429 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
430 # or the intended parent domain for live records.
431 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
432 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
433
434 return ('OK','OK');
435} # done CNAME record
436
437# SOA record
438sub _validate_6 {
439 # Smart monkeys won't stick their fingers in here; we have
440 # separate dedicated routines to deal with SOA records.
441 return ('OK','OK');
442} # done SOA record
443
444# PTR record
445sub _validate_12 {
446 my $dbh = shift;
447
448 my %args = @_;
449
450 if ($args{revrec} eq 'y') {
451 if ($args{defrec} eq 'n') {
452 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
453 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
454 ${$args{val}} = $args{addr}->addr;
455 } else {
456 if (${$args{val}} =~ /\./) {
457 # looks like a v4 or fragment
458 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
459 # woo! a complete IP! validate it and normalize, or fail.
460 $args{addr} = NetAddr::IP->new(${$args{val}})
461 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
462 ${$args{val}} = $args{addr}->addr;
463 } else {
464 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
465 }
466 } elsif (${$args{val}} =~ /[a-f:]/) {
467 # looks like a v6 or fragment
468 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
469 if ($args{addr}) {
470 if ($args{addr}->addr =~ /^0/) {
471 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
472 } else {
473 ${$args{val}} = $args{addr}->addr;
474 }
475 }
476 } else {
477 # bare number (probably). These could be v4 or v6, so we'll
478 # expand on these on creation of a reverse zone.
479 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
480 }
481 ${$args{host}} =~ s/\.*$/\.$config{domain}/ if ${$args{host}} !~ /(?:$config{domain}|ADMINDOMAIN)$/;
482 }
483
484# Multiple PTR records do NOT generally do what most people believe they do,
485# and tend to fail in the most awkward way possible. Check and warn.
486# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
487
488 my @checkvals = (${$args{val}});
489 if (${$args{val}} =~ /,/) {
490 # push . and :: variants into checkvals if val has ,
491 my $tmp;
492 ($tmp = ${$args{val}}) =~ s/,/./;
493 push @checkvals, $tmp;
494 ($tmp = ${$args{val}}) =~ s/,/::/;
495 push @checkvals, $tmp;
496 }
497 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
498 foreach my $checkme (@checkvals) {
499 if ($args{update}) {
500 # Record update. There should usually be an existing PTR (the record being updated)
501 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
502 " WHERE val = ?", undef, ($checkme)) };
503 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
504 if @ptrs && (!grep /^$args{update}$/, @ptrs);
505 } else {
506 # New record. Always warn if a PTR exists
507 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
508 " WHERE val = ?", undef, ($checkme));
509 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
510 if $ptrcount;
511 }
512 }
513
514 } else {
515 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
516 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
517 # PTR records on export
518 return ('FAIL',"Forward zones cannot contain PTR records");
519 }
520
521 return ('OK','OK');
522} # done PTR record
523
524# MX record
525sub _validate_15 {
526 my $dbh = shift;
527
528 my %args = @_;
529
530# Not absolutely true but WTF use is an MX record for a reverse zone?
531 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
532
533 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
534 ${$args{dist}} =~ s/\s*//g;
535 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
536
537 ${$args{fields}} = "distance,";
538 push @{$args{vallist}}, ${$args{dist}};
539
540 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
541 # or the intended parent domain for live records.
542 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
543 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
544
545# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
546# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
547# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
548# return ('FAIL',"$val is not a valid IP address") if !$addr;
549# }
550# }
551
552 return ('OK','OK');
553} # done MX record
554
555# TXT record
556sub _validate_16 {
557 # Could arguably put a WARN return here on very long (>512) records
558 return ('OK','OK');
559} # done TXT record
560
561# RP record
562sub _validate_17 {
563 # Probably have to validate these some day
564 return ('OK','OK');
565} # done RP record
566
567# AAAA record
568sub _validate_28 {
569 my $dbh = shift;
570
571 my %args = @_;
572
573 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
574
575 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
576 # or the intended parent domain for live records.
577 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
578 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
579
580 # Check IP is well-formed, and that it's a v6 address
581 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
582 unless $args{addr} && $args{addr}->{isv6};
583 # coerce IP/value to normalized form for storage
584 ${$args{val}} = $args{addr}->addr;
585
586 return ('OK','OK');
587} # done AAAA record
588
589# SRV record
590sub _validate_33 {
591 my $dbh = shift;
592
593 my %args = @_;
594
595# Not absolutely true but WTF use is an SRV record for a reverse zone?
596 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
597
598 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
599 ${$args{dist}} =~ s/\s*//g;
600 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
601
602 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
603 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
604 return ('FAIL',"Port and weight are required for SRV records")
605 unless defined(${$args{weight}}) && defined(${$args{port}});
606 ${$args{weight}} =~ s/\s*//g;
607 ${$args{port}} =~ s/\s*//g;
608
609 return ('FAIL',"Port and weight are required, and must be numeric")
610 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
611
612 ${$args{fields}} = "distance,weight,port,";
613 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
614
615 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
616 # or the intended parent domain for live records.
617 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
618 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
619
620 return ('OK','OK');
621} # done SRV record
622
623# Now the custom types
624
625# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
626sub _validate_65280 {
627 my $dbh = shift;
628
629 my %args = @_;
630
631 my $code = 'OK';
632 my $msg = 'OK';
633
634 if ($args{defrec} eq 'n') {
635 # live record; revrec determines whether we validate the PTR or A component first.
636
637 if ($args{revrec} eq 'y') {
638 ($code,$msg) = _validate_12($dbh, %args);
639 return ($code,$msg) if $code eq 'FAIL';
640
641 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
642 if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
643 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
644 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
645 $msg .= "\n$addmsg" if $code eq 'WARN';
646 $msg = $addmsg if $code eq 'OK';
647 ${$args{rectype}} = $reverse_typemap{PTR};
648 return ('WARN', $msg);
649 }
650
651 # Add domain ID to field list and values
652 ${$args{fields}} .= "domain_id,";
653 push @{$args{vallist}}, ${$args{domid}};
654
655 } else {
656 ($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
657 ($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
658 return ($code,$msg) if $code eq 'FAIL';
659
660 # Check if the requested reverse zone exists - note, an IP fragment won't
661 # work here since we don't *know* which parent to put it in.
662 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
663 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
664 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
665 if (!$revid) {
666 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
667 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
668 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
669 return ('WARN', $msg);
670 }
671
672 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
673 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
674 if ($args{update}) {
675 # Record update. There should usually be an existing PTR (the record being updated)
676 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
677 " WHERE val = ?", undef, (${$args{val}})) };
678 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
679 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
680 $code = 'WARN';
681 }
682 } else {
683 # New record. Always warn if a PTR exists
684 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
685 " WHERE val = ?", undef, (${$args{val}}));
686 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
687 if $ptrcount;
688 $code = 'WARN' if $ptrcount;
689 }
690
691# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
692# " WHERE val = ?", undef, ${$args{val}});
693# if ($ptrcount) {
694# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
695# " WHERE val = ?
696# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
697# $code = 'WARN';
698# }
699
700 ${$args{fields}} .= "rdns_id,";
701 push @{$args{vallist}}, $revid;
702 }
703
704 } else { # defrec eq 'y'
705 if ($args{revrec} eq 'y') {
706 ($code,$msg) = _validate_12($dbh, %args);
707 return ($code,$msg) if $code eq 'FAIL';
708 if (${$args{rectype}} == 65280) {
709 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
710 if ${$args{val}} =~ /:/;
711 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
712 } elsif (${$args{rectype}} == 65281) {
713 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
714 if ${$args{val}} =~ /\./;
715 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
716 }
717 } else {
718 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
719 # domains, since you wouldn't be able to substitute both domain and reverse zone
720 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
721 # confuse the hell out of pretty much anything that uses them.
722##fixme: make this a config flag?
723 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
724 }
725 }
726
727 return ($code, $msg);
728} # done A+PTR record
729
730# AAAA+PTR record
731# A+PTR above has been magicked to handle AAAA+PTR as well.
732sub _validate_65281 {
733 return _validate_65280(@_);
734} # done AAAA+PTR record
735
736# PTR template record
737sub _validate_65282 {
738 my $dbh = shift;
739
740 my %args = @_;
741
742 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
743 if ($args{revrec} eq 'y') {
744 if ($args{defrec} eq 'n') {
745 return ('FAIL', "Template block ${$args{val}} is not within ".revName($dbh, $args{id}))
746 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
747##fixme: warn if $args{val} is not /31 or larger block?
748 ${$args{val}} = "$args{addr}";
749 } else {
750 if (${$args{val}} =~ /\./) {
751 # looks like a v4 or fragment
752 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
753 # woo! a complete IP! validate it and normalize, or fail.
754 $args{addr} = NetAddr::IP->new(${$args{val}})
755 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
756 ${$args{val}} = "$args{addr}";
757 } else {
758 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
759 }
760 } elsif (${$args{val}} =~ /[a-f:]/) {
761 # looks like a v6 or fragment
762 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
763 if ($args{addr}) {
764 if ($args{addr}->addr =~ /^0/) {
765 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
766 } else {
767 ${$args{val}} = "$args{addr}";
768 }
769 }
770 } else {
771 # bare number (probably). These could be v4 or v6, so we'll
772 # expand on these on creation of a reverse zone.
773 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
774 }
775 }
776##fixme: validate %-patterns?
777
778# Unlike single PTR records, there is absolutely no way to sanely support multiple
779# PTR templates for the same block, since they expect to expand to all the individual
780# IPs on export. Nested templates should be supported though.
781
782 my @checkvals = (${$args{val}});
783 if (${$args{val}} =~ /,/) {
784 # push . and :: variants into checkvals if val has ,
785 my $tmp;
786 ($tmp = ${$args{val}}) =~ s/,/./;
787 push @checkvals, $tmp;
788 ($tmp = ${$args{val}}) =~ s/,/::/;
789 push @checkvals, $tmp;
790 }
791##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
792# Per Netblock such that they don't conflict on export
793 my $typeck;
794# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
795 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
796# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
797 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
798# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
799 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
800 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
801 "AND (type=65282 OR $typeck)");
802 foreach my $checkme (@checkvals) {
803 $pcsth->execute($checkme);
804 my ($rc) = $pcsth->fetchrow_array;
805 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc;
806 }
807
808 } else {
809 return ('FAIL', "Forward zones cannot contain PTR records");
810 }
811
812 return ('OK','OK');
813} # done PTR template record
814
815# A+PTR template record
816sub _validate_65283 {
817 my $dbh = shift;
818
819 my %args = @_;
820
821 my ($code,$msg) = ('OK','OK');
822
823##fixme: need to fiddle things since A+PTR templates are acceptable in live
824# forward zones but not default records
825 if ($args{defrec} eq 'n') {
826 if ($args{revrec} eq 'n') {
827 ($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
828 ($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
829 return ($code,$msg) if $code eq 'FAIL';
830
831 # Check if the requested reverse zone exists - note, an IP fragment won't
832 # work here since we don't *know* which parent to put it in.
833 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
834 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
835 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
836 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
837 if (!$revid) {
838 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
839 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
840##fixme: add A template, AAAA template types?
841# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
842 return ('FAIL', $msg);
843 }
844
845 # Add reverse zone ID to field list and values
846 ${$args{fields}} .= "rdns_id,";
847 push @{$args{vallist}}, $revid;
848
849 } else {
850 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
851 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
852 ${$args{val}} = "$args{addr}";
853
854 if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
855 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
856 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
857 $msg .= "\n$addmsg" if $code eq 'WARN';
858 $msg = $addmsg if $code eq 'OK';
859 ${$args{rectype}} = 65282;
860 return ('WARN', $msg);
861 }
862
863 # Add domain ID to field list and values
864 ${$args{fields}} .= "domain_id,";
865 push @{$args{vallist}}, ${$args{domid}};
866 }
867
868 } else {
869 my ($code,$msg) = _validate_65282($dbh, %args);
870 return ($code, $msg) if $code eq 'FAIL';
871 # get domain, check against ${$args{name}}
872 }
873
874 return ('OK','OK');
875} # done AAAA+PTR template record
876
877# AAAA+PTR template record
878sub _validate_65284 {
879 return ('OK','OK');
880} # done AAAA+PTR template record
881
882# Delegation record
883# This is essentially a specialized clone of the NS record, primarily useful
884# for delegating IPv4 sub-/24 reverse blocks
885sub _validate_65285 {
886 my $dbh = shift;
887
888 my %args = @_;
889
890# Almost, but not quite, identical to NS record validation.
891
892 # Check that the target of the record is within the parent.
893 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
894 if ($args{defrec} eq 'n') {
895 # Check if IP/address/zone/"subzone" is within the parent
896 if ($args{revrec} eq 'y') {
897 my $tmpip = NetAddr::IP->new(${$args{val}});
898 my $pname = revName($dbh,$args{id});
899 return ('FAIL',"${$args{val}} not within $pname")
900 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
901 # Normalize
902 ${$args{val}} = "$tmpip";
903 } else {
904 my $pname = domainName($dbh,$args{id});
905 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
906 }
907 } else {
908 return ('FAIL',"Delegation records are not permitted in default record sets");
909 }
910 return ('OK','OK');
911}
912
913
914##
915## Record data substitution subs
916##
917
918# Replace ZONE in hostname, or create (most of) the actual proper zone name
919sub _ZONE {
920 my $zone = shift;
921 my $string = shift;
922 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
923 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
924
925 my $prefix;
926
927 $string =~ s/,/./ if !$zone->{isv6};
928 $string =~ s/,/::/ if $zone->{isv6};
929
930 # Subbing ZONE in the host. We need to properly ID the netblock range
931 # The subbed text should have "network IP with trailing zeros stripped" for
932 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
933 # For blocks that do NOT line up on these boundaries, we take the most
934 # significant octet or 16-bit chunk of the "broadcast" IP and append it
935 # after a double-dash
936 # ie:
937 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
938 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
939 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
940 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
941 # Similar for v6
942
943 if (!$zone->{isv6}) { # IPv4
944
945 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
946 # a funky subnet that had host bits set.
947 my $bc = $zone->broadcast->addr;
948
949 if ($zone->masklen > 24) {
950 $bc =~ s/^\d+\.\d+\.\d+\.//;
951 } elsif ($zone->masklen > 16) {
952 $prefix =~ s/\.0$//;
953 $bc =~ s/^\d+\.\d+\.//;
954 } elsif ($zone->masklen > 8) {
955 $bc =~ s/^\d+\.//;
956 $prefix =~ s/\.0\.0$//;
957 } else {
958 $prefix =~ s/\.0\.0\.0$//;
959 }
960 if ($zone->masklen % 8) {
961 $bc =~ s/(\.255)+$//;
962 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
963 }
964 if ($fr eq 'f') {
965 $prefix =~ s/\.+/$sep/g;
966 } else {
967 $prefix = join($sep, reverse(split(/\./, $prefix)));
968 }
969
970 } else { # IPv6
971
972 if ($fr eq 'f') {
973
974 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
975 # a funky subnet that had host bits set.
976 my $bc = $zone->broadcast->addr;
977 if (($zone->masklen % 16) != 0) {
978 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
979 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
980 $prefix =~ s/:0$//;
981 $bc =~ s/:ffff$//;
982 }
983 # Strip the leading 16-bit chunks off the front of the broadcast IP
984 $bc =~ s/^([a-f0-9]+:)+//;
985 # Append the remaining 16-bit chunk to the prefix after "--"
986 $prefix .= "--$bc";
987 } else {
988 # Strip off :0 from the end until we reach the netblock length.
989 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
990 $prefix =~ s/:0$//;
991 }
992 }
993 # Actually deal with the separator
994 $prefix =~ s/:/$sep/g;
995
996 } else { # $fr eq 'f'
997
998 $prefix = $zone->network->full; # Just In Case someone managed to slip in
999 # a funky subnet that had host bits set.
1000 my $bc = $zone->broadcast->full;
1001 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
1002 $bc =~ s/://g;
1003 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
1004 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
1005 $prefix =~ s/0$//;
1006 $bc =~ s/f$//;
1007 }
1008 # Split and reverse the order of the nibbles in the network/broadcast IPs
1009 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
1010 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
1011 my @nbits = reverse split //, $prefix;
1012 my @bbits = reverse split //, $bc;
1013 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
1014 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
1015 # Glue it back together
1016 $prefix = join($sep, @nbits);
1017
1018 } # $fr ne 'f'
1019
1020 } # $zone->{isv6}
1021
1022 # Do the substitution, finally
1023 $string =~ s/ZONE/$prefix/;
1024 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
1025 return $string;
1026} # done _ZONE()
1027
1028# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1029# given the .arpa zone name, return the CIDR netblock the zone is for.
1030# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1031# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1032# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1033sub _zone2cidr {
1034 my $zone = shift;
1035
1036 my $cidr;
1037 my $tmpcidr;
1038 my $warnmsg = '';
1039
1040 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1041 # v4 revzone, formal zone name type
1042 my $tmpzone = $zone;
1043 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1044 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name") if $tmpzone !~ /^(?:\d+-)?[\d\.]+$/;
1045
1046 # Snag the octet pieces
1047 my @octs = split /\./, $tmpzone;
1048
1049 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1050 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1051 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1052 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1053 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1054 );
1055
1056 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1057 # Need to take the size of the range to offset the basic octet-based mask length,
1058 # and make sure the first number in the range gets used as the network address for the block
1059 # Alternate form: The second number is actually the real netmask, not the end of the range.
1060 my $masklen = 0;
1061 if ($octs[0] =~ /^((\d+)-(\d+))$/) { # take the range...
1062 if (24 < $3 && $3 < 31) {
1063 # we have a real netmask
1064 $masklen = -$maskmap{$3};
1065 } else {
1066 # we have a range. NB: only real CIDR ranges are supported
1067 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1068 }
1069 $octs[0] = $2; # set the base octet of the range...
1070 }
1071 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1072
1073# arguably we should only allow sub-octet range/mask in-addr.arpa
1074# specifications in the least significant octet, but the code is
1075# simpler if we deal with sub-octet delegations at any level.
1076
1077 # Now we find the "true" mask with the aid of the "base" calculated above
1078 if ($#octs == 0) {
1079 $masklen += 8;
1080 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1081 } elsif ($#octs == 1) {
1082 $masklen += 16;
1083 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1084 } elsif ($#octs == 2) {
1085 $masklen += 24;
1086 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1087 } else {
1088 $masklen += 32;
1089 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1090 }
1091
1092 } elsif ($zone =~ /\.ip6\.arpa$/) {
1093 # v6 revzone, formal zone name type
1094 my $tmpzone = $zone;
1095 $tmpzone =~ s/\.ip6\.arpa\.?//;
1096##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1097 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name") if $tmpzone !~ /^[a-fA-F\d\.]+$/;
1098 my @quads = reverse(split(/\./, $tmpzone));
1099 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1100 my $nc;
1101 foreach (@quads) {
1102 $tmpcidr .= $_;
1103 $tmpcidr .= ":" if ++$nc % 4 == 0;
1104 }
1105 my $nq = 1 if $nc % 4 != 0;
1106 my $mask = $nc * 4; # need to do this here because we probably increment it below
1107 while ($nc++ % 4 != 0) {
1108 $tmpcidr .= "0";
1109 }
1110 $tmpcidr .= ($nq ? '::' : ':')."/$mask";
1111 }
1112
1113 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1114 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1115 unless $cidr = NetAddr::IP->new($tmpcidr);
1116
1117 if ($warnmsg) {
1118 $errstr = $warnmsg;
1119 return ('WARN', $cidr);
1120 }
1121 return ('OK', $cidr);
1122} # done _zone2cidr()
1123
1124# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1125# really have a sane way to handle this type of expansion at the moment
1126# due to the size of the address space.
1127# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1128sub _template4_expand {
1129 my $tmpl = shift;
1130 my $ip = shift;
1131
1132 my @ipparts = split /\./, $ip;
1133 my @iphex;
1134 my @ippad;
1135 for (@ipparts) {
1136 push @iphex, sprintf("%x", $_);
1137 push @ippad, sprintf("%u.3", $_);
1138 }
1139
1140 # IP substitutions in template records:
1141 #major patterns:
1142 #dashed IP, forward and reverse
1143 #dotted IP, forward and reverse (even if forward is... dumb)
1144 # -> %r for reverse, %i for forward, leading - or . to indicate separator, defaults to -
1145 # %r or %-r => %4d-%3d-%2d-%1d
1146 # %.r => %4d.%3d.%2d.%1d
1147 # %i or %-i => %1d-%2d-%3d-%4d
1148 # %.i => %1d.%2d.%3d.%4d
1149 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1150 $$tmpl =~ s/\%([-.])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1151 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1152 $$tmpl =~ s/\%([-.])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1153
1154 #hex-coded IP
1155 # %h
1156 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1157
1158 #IP as decimal-coded 32-bit value
1159 # %d
1160 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1161 $$tmpl =~ s/\%d/$iptmp/g;
1162
1163 #minor patterns (per-octet)
1164 # %[1234][dh0]
1165 #octet
1166 #hex-coded octet
1167 #0-padded octet
1168 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1169 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1170 $$tmpl =~ s/\%([1234])h/$ippad[$1-1]/g;
1171} # _template4_expand()
1172
1173
1174##
1175## Initialization and cleanup subs
1176##
1177
1178
1179## DNSDB::loadConfig()
1180# Load the minimum required initial state (DB connect info) from a config file
1181# Load misc other bits while we're at it.
1182# Takes an optional basename and config path to look for
1183# Populates the %config and %def hashes
1184sub loadConfig {
1185 my $basename = shift || ''; # this will work OK
1186##fixme $basename isn't doing what I think I thought I was trying to do.
1187
1188 my $deferr = ''; # place to put error from default config file in case we can't find either one
1189
1190 my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
1191 $configroot = '' if $basename =~ m|^/|;
1192 $basename .= ".conf" if $basename !~ /\.conf$/;
1193 my $defconfig = "$configroot/dnsdb.conf";
1194 my $siteconfig = "$configroot/$basename";
1195
1196 # System defaults
1197 __cfgload("$defconfig") or $deferr = $errstr;
1198
1199 # Per-site-ish settings.
1200 if ($basename ne '.conf') {
1201 unless (__cfgload("$siteconfig")) {
1202 $errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
1203 "Error opening site config file $siteconfig";
1204 return;
1205 }
1206 }
1207
1208 # Munge log_failures.
1209 if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
1210 # true/false, on/off, yes/no all valid.
1211 if ($config{log_failures} =~ /^(?:true|false|on|off|yes|no)$/) {
1212 if ($config{log_failures} =~ /(?:true|on|yes)/) {
1213 $config{log_failures} = 1;
1214 } else {
1215 $config{log_failures} = 0;
1216 }
1217 } else {
1218 $errstr = "Bad log_failures setting $config{log_failures}";
1219 $config{log_failures} = 1;
1220 # Bad setting shouldn't be fatal.
1221 # return 2;
1222 }
1223 }
1224
1225 # All good, clear the error and go home.
1226 $errstr = '';
1227 return 1;
1228} # end loadConfig()
1229
1230
1231## DNSDB::__cfgload()
1232# Private sub to parse a config file and load it into %config
1233# Takes a file handle on an open config file
1234sub __cfgload {
1235 $errstr = '';
1236 my $cfgfile = shift;
1237
1238 if (open CFG, "<$cfgfile") {
1239 while (<CFG>) {
1240 chomp;
1241 s/^\s*//;
1242 next if /^#/;
1243 next if /^$/;
1244# hmm. more complex bits in this file might require [heading] headers, maybe?
1245# $mode = $1 if /^\[(a-z)+]/;
1246 # DB connect info
1247 $config{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1248 $config{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1249 $config{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1250 $config{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1251 # SOA defaults
1252 $def{contact} = $1 if /^contact\s*=\s*([a-z0-9_.-]+)/i;
1253 $def{prins} = $1 if /^prins\s*=\s*([a-z0-9_.-]+)/i;
1254 $def{soattl} = $1 if /^soattl\s*=\s*(\d+)/i;
1255 $def{refresh} = $1 if /^refresh\s*=\s*(\d+)/i;
1256 $def{retry} = $1 if /^retry\s*=\s*(\d+)/i;
1257 $def{expire} = $1 if /^expire\s*=\s*(\d+)/i;
1258 $def{minttl} = $1 if /^minttl\s*=\s*(\d+)/i;
1259 $def{ttl} = $1 if /^ttl\s*=\s*(\d+)/i;
1260 # Mail settings
1261 $config{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1262 $config{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1263 $config{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1264 $config{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1265 $config{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1266 $config{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1267 # session - note this is fed directly to CGI::Session
1268 $config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1269 $config{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1270 # misc
1271 $config{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1272 $config{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1273 }
1274 close CFG;
1275 } else {
1276 $errstr = $!;
1277 return;
1278 }
1279 return 1;
1280} # end __cfgload()
1281
1282
1283## DNSDB::connectDB()
1284# Creates connection to DNS database.
1285# Requires the database name, username, and password.
1286# Returns a handle to the db.
1287# Set up for a PostgreSQL db; could be any transactional DBMS with the
1288# right changes.
1289sub connectDB {
1290 $errstr = '';
1291 my $dbname = shift;
1292 my $user = shift;
1293 my $pass = shift;
1294 my $dbh;
1295 my $DSN = "DBI:Pg:dbname=$dbname";
1296
1297 my $host = shift;
1298 $DSN .= ";host=$host" if $host;
1299
1300# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1301# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1302 $dbh = DBI->connect($DSN, $user, $pass, {
1303 AutoCommit => 1,
1304 PrintError => 0
1305 })
1306 or return (undef, $DBI::errstr) if(!$dbh);
1307
1308##fixme: initialize the DB if we can't find the table (since, by definition, there's
1309# nothing there if we can't select from it...)
1310 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1311 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1312 return (undef,$DBI::errstr) if $dbh->err;
1313
1314#if ($tblcount == 0) {
1315# # create tables one at a time, checking for each.
1316# return (undef, "check table misc missing");
1317#}
1318
1319
1320# Return here if we can't select.
1321# This should retrieve the dbversion key.
1322 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1323 $sth->execute();
1324 return (undef,$DBI::errstr) if ($sth->err);
1325
1326##fixme: do stuff to the DB on version mismatch
1327# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1328# DB should be downward-compatible; column defaults should give sane (if possibly
1329# useless-and-needs-help) values in columns an older software stack doesn't know about.
1330
1331# See if the select returned anything (or null data). This should
1332# succeed if the select executed, but...
1333 $sth->fetchrow();
1334 return (undef,$DBI::errstr) if ($sth->err);
1335
1336 $sth->finish;
1337
1338# If we get here, we should be OK.
1339 return ($dbh,"DB connection OK");
1340} # end connectDB
1341
1342
1343## DNSDB::finish()
1344# Cleans up after database handles and so on.
1345# Requires a database handle
1346sub finish {
1347 my $dbh = $_[0];
1348 $dbh->disconnect;
1349} # end finish
1350
1351
1352## DNSDB::initGlobals()
1353# Initialize global variables
1354# NB: this does NOT include web-specific session variables!
1355# Requires a database handle
1356sub initGlobals {
1357 my $dbh = shift;
1358
1359# load record types from database
1360 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1361 $sth->execute;
1362 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1363 $typemap{$recval} = $recname;
1364 $reverse_typemap{$recname} = $recval;
1365 # now we fill the record validation function hash
1366 if ($stdflag < 5) {
1367 my $fn = "_validate_$recval";
1368 $validators{$recval} = \&$fn;
1369 } else {
1370 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1371 $validators{$recval} = eval $fn;
1372 }
1373 }
1374} # end initGlobals
1375
1376
1377## DNSDB::login()
1378# Takes a database handle, username and password
1379# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1380# password matches the one on file, and account is not disabled
1381# Returns undef otherwise
1382sub login {
1383 my $dbh = shift;
1384 my $user = shift;
1385 my $pass = shift;
1386
1387 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1388 " FROM users WHERE username=?",
1389 undef, ($user) );
1390 return if !$userinfo;
1391 return if !$userinfo->{status};
1392
1393 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1394 # native passwords (crypt-md5)
1395 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1396 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1397 # VegaDNS import (hex-coded MD5)
1398 return if $userinfo->{password} ne md5_hex($pass);
1399 } else {
1400 # plaintext (convenient now and then)
1401 return if $userinfo->{password} ne $pass;
1402 }
1403
1404 return $userinfo;
1405} # end login()
1406
1407
1408## DNSDB::initActionLog()
1409# Set up action logging. Takes a database handle and user ID
1410# Sets some internal globals and Does The Right Thing to set up a logging channel.
1411# This sets up _log() to spew out log entries to the defined channel without worrying
1412# about having to open a file or a syslog channel
1413##fixme Need to call _initActionLog_blah() for various logging channels, configured
1414# via dnsdb.conf, in $config{log_channel} or something
1415# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1416sub initActionLog {
1417 my $dbh = shift;
1418 my $uid = shift;
1419
1420 return if !$uid;
1421
1422 # snag user info for logging. there's got to be a way to not have to pass this back
1423 # and forth from a caller, but web usage means no persistence we can rely on from
1424 # the server side.
1425 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1426 " FROM users WHERE user_id=?", undef, ($uid));
1427##fixme: errors are unpossible!
1428
1429 $userdata{username} = $username;
1430 $userdata{userid} = $uid;
1431 $userdata{fullname} = $fullname;
1432
1433 # convert to real check once we have other logging channels
1434 # if ($config{log_channel} eq 'sql') {
1435 # Open Log, Sez Me!
1436 # }
1437
1438} # end initActionLog
1439
1440
1441## DNSDB::initPermissions()
1442# Set up permissions global
1443# Takes database handle and UID
1444sub initPermissions {
1445 my $dbh = shift;
1446 my $uid = shift;
1447
1448# %permissions = $(getPermissions($dbh,'user',$uid));
1449 getPermissions($dbh, 'user', $uid, \%permissions);
1450
1451} # end initPermissions()
1452
1453
1454## DNSDB::getPermissions()
1455# Get permissions from DB
1456# Requires DB handle, group or user flag, ID, and hashref.
1457sub getPermissions {
1458 my $dbh = shift;
1459 my $type = shift;
1460 my $id = shift;
1461 my $hash = shift;
1462
1463 my $sql = qq(
1464 SELECT
1465 p.admin,p.self_edit,
1466 p.group_create,p.group_edit,p.group_delete,
1467 p.user_create,p.user_edit,p.user_delete,
1468 p.domain_create,p.domain_edit,p.domain_delete,
1469 p.record_create,p.record_edit,p.record_delete
1470 FROM permissions p
1471 );
1472 if ($type eq 'group') {
1473 $sql .= qq(
1474 JOIN groups g ON g.permission_id=p.permission_id
1475 WHERE g.group_id=?
1476 );
1477 } else {
1478 $sql .= qq(
1479 JOIN users u ON u.permission_id=p.permission_id
1480 WHERE u.user_id=?
1481 );
1482 }
1483
1484 my $sth = $dbh->prepare($sql);
1485
1486 $sth->execute($id) or die "argh: ".$sth->errstr;
1487
1488# my $permref = $sth->fetchrow_hashref;
1489# return $permref;
1490# $hash = $permref;
1491# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1492 ($hash->{admin},$hash->{self_edit},
1493 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1494 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1495 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1496 $hash->{record_create},$hash->{record_edit},$hash->{record_delete})
1497 = $sth->fetchrow_array;
1498
1499} # end getPermissions()
1500
1501
1502## DNSDB::changePermissions()
1503# Update an ACL entry
1504# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1505sub changePermissions {
1506 my $dbh = shift;
1507 my $type = shift;
1508 my $id = shift;
1509 my $newperms = shift;
1510 my $inherit = shift || 0;
1511
1512 my $resultmsg = '';
1513
1514 # see if we're switching from inherited to custom. for bonus points,
1515 # snag the permid and parent permid anyway, since we'll need the permid
1516 # to set/alter custom perms, and both if we're switching from custom to
1517 # inherited.
1518 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1519 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1520 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1521 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1522 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1523 $sth->execute($id);
1524
1525 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1526
1527# hack phtoui
1528# group id 1 is "special" in that it's it's own parent (err... possibly.)
1529# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1530 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1531
1532 local $dbh->{AutoCommit} = 0;
1533 local $dbh->{RaiseError} = 1;
1534
1535 # Wrap all the SQL in a transaction
1536 eval {
1537 if ($inherit) {
1538
1539 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1540 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1541 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1542
1543 } else {
1544
1545 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1546##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1547# ... if'n'when we have groups with fully inherited permissions.
1548 # SQL is coo
1549 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1550 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1551 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1552 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1553 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1554 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1555 }
1556
1557 # and now set the permissions we were passed
1558 foreach (@permtypes) {
1559 if (defined ($newperms->{$_})) {
1560 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1561 }
1562 }
1563
1564 } # (inherited->)? custom
1565
1566 if ($type eq 'user') {
1567 $resultmsg = "Updated permissions for user $name";
1568 } else {
1569 $resultmsg = "Updated default permissions for group $name";
1570 }
1571 _log($dbh, (group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg));
1572 $dbh->commit;
1573 }; # end eval
1574 if ($@) {
1575 my $msg = $@;
1576 eval { $dbh->rollback; };
1577 return ('FAIL',"Error changing permissions: $msg");
1578 }
1579
1580 return ('OK',$resultmsg);
1581} # end changePermissions()
1582
1583
1584## DNSDB::comparePermissions()
1585# Compare two permission hashes
1586# Returns '>', '<', '=', '!'
1587sub comparePermissions {
1588 my $p1 = shift;
1589 my $p2 = shift;
1590
1591 my $retval = '='; # assume equality until proven otherwise
1592
1593 no warnings "uninitialized";
1594
1595 foreach (@permtypes) {
1596 next if $p1->{$_} == $p2->{$_}; # equal is good
1597 if ($p1->{$_} && !$p2->{$_}) {
1598 if ($retval eq '<') { # if we've already found an unequal pair where
1599 $retval = '!'; # $p2 has more access, and we now find a pair
1600 last; # where $p1 has more access, the overall access
1601 } # is neither greater or lesser, it's unequal.
1602 $retval = '>';
1603 }
1604 if (!$p1->{$_} && $p2->{$_}) {
1605 if ($retval eq '>') { # if we've already found an unequal pair where
1606 $retval = '!'; # $p1 has more access, and we now find a pair
1607 last; # where $p2 has more access, the overall access
1608 } # is neither greater or lesser, it's unequal.
1609 $retval = '<';
1610 }
1611 }
1612 return $retval;
1613} # end comparePermissions()
1614
1615
1616## DNSDB::changeGroup()
1617# Change group ID of an entity
1618# Takes a database handle, entity type, entity ID, and new group ID
1619sub changeGroup {
1620 my $dbh = shift;
1621 my $type = shift;
1622 my $id = shift;
1623 my $newgrp = shift;
1624
1625##fixme: fail on not enough args
1626 #return ('FAIL', "Missing
1627
1628 return ('FAIL', "Can't change the group of a $type")
1629 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1630
1631 # Collect some names for logging and messages
1632 my $entname;
1633 if ($type eq 'domain') {
1634 $entname = domainName($dbh, $id);
1635 } elsif ($type eq 'revzone') {
1636 $entname = revName($dbh, $id);
1637 } elsif ($type eq 'user') {
1638 $entname = userFullName($dbh, $id, '%u');
1639 } elsif ($type eq 'group') {
1640 $entname = groupName($dbh, $id);
1641 }
1642
1643 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1644 undef, ($id));
1645 my $oldgname = groupName($dbh, $oldgid);
1646 my $newgname = groupName($dbh, $newgrp);
1647
1648 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1649
1650 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1651
1652 # Allow transactions, and raise an exception on errors so we can catch it later.
1653 # Use local to make sure these get "reset" properly on exiting this block
1654 local $dbh->{AutoCommit} = 0;
1655 local $dbh->{RaiseError} = 1;
1656
1657 eval {
1658 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1659 # Log the change in both the old and new groups
1660 _log($dbh, (group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname"));
1661 _log($dbh, (group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname"));
1662 $dbh->commit;
1663 };
1664 if ($@) {
1665 my $msg = $@;
1666 eval { $dbh->rollback; };
1667 if ($config{log_failures}) {
1668 _log($dbh, (group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg"));
1669 $dbh->commit; # since we enabled transactions earlier
1670 }
1671 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1672 }
1673
1674 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1675} # end changeGroup()
1676
1677
1678##
1679## Processing subs
1680##
1681
1682## DNSDB::addDomain()
1683# Add a domain
1684# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1685# and user info hash (for logging).
1686# Returns a status code and message
1687sub addDomain {
1688 $errstr = '';
1689 my $dbh = shift;
1690 return ('FAIL',"Need database handle") if !$dbh;
1691 my $domain = shift;
1692 return ('FAIL',"Domain must not be blank") if !$domain;
1693 my $group = shift;
1694 return ('FAIL',"Need group") if !defined($group);
1695 my $state = shift;
1696 return ('FAIL',"Need domain status") if !defined($state);
1697
1698 $state = 1 if $state =~ /^active$/;
1699 $state = 1 if $state =~ /^on$/;
1700 $state = 0 if $state =~ /^inactive$/;
1701 $state = 0 if $state =~ /^off$/;
1702
1703 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1704
1705 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1706
1707 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
1708 my $dom_id;
1709
1710# quick check to start to see if we've already got one
1711 $sth->execute($domain);
1712 ($dom_id) = $sth->fetchrow_array;
1713
1714 return ('FAIL', "Domain already exists") if $dom_id;
1715
1716 # Allow transactions, and raise an exception on errors so we can catch it later.
1717 # Use local to make sure these get "reset" properly on exiting this block
1718 local $dbh->{AutoCommit} = 0;
1719 local $dbh->{RaiseError} = 1;
1720
1721 # Wrap all the SQL in a transaction
1722 eval {
1723 # insert the domain...
1724 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
1725
1726 # get the ID...
1727 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
1728
1729 _log($dbh, (domain_id => $dom_id, group_id => $group,
1730 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain"));
1731
1732 # ... and now we construct the standard records from the default set. NB: group should be variable.
1733 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1734 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
1735 " VALUES ($dom_id,?,?,?,?,?,?,?)");
1736 $sth->execute($group);
1737 while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
1738 $host =~ s/DOMAIN/$domain/g;
1739 $val =~ s/DOMAIN/$domain/g;
1740 $sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
1741 if ($typemap{$type} eq 'SOA') {
1742 my @tmp1 = split /:/, $host;
1743 my @tmp2 = split /:/, $val;
1744 _log($dbh, (domain_id => $dom_id, group_id => $group,
1745 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1746 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1747 } else {
1748 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1749 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1750 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1751 _log($dbh, (domain_id => $dom_id, group_id => $group,
1752 entry => $logentry." $val', TTL $ttl"));
1753 }
1754 }
1755
1756 # once we get here, we should have suceeded.
1757 $dbh->commit;
1758 }; # end eval
1759
1760 if ($@) {
1761 my $msg = $@;
1762 eval { $dbh->rollback; };
1763 _log($dbh, (group_id => $group, entry => "Failed adding domain $domain ($msg)"))
1764 if $config{log_failures};
1765 $dbh->commit; # since we enabled transactions earlier
1766 return ('FAIL',$msg);
1767 } else {
1768 return ('OK',$dom_id);
1769 }
1770} # end addDomain
1771
1772
1773## DNSDB::delZone()
1774# Delete a forward or reverse zone.
1775# Takes a database handle, zone ID, and forward/reverse flag.
1776# for now, just delete the records, then the domain.
1777# later we may want to archive it in some way instead (status code 2, for example?)
1778sub delZone {
1779 my $dbh = shift;
1780 my $zoneid = shift;
1781 my $revrec = shift;
1782
1783 # Allow transactions, and raise an exception on errors so we can catch it later.
1784 # Use local to make sure these get "reset" properly on exiting this block
1785 local $dbh->{AutoCommit} = 0;
1786 local $dbh->{RaiseError} = 1;
1787
1788 my $msg = '';
1789 my $failmsg = '';
1790 my $zone = ($revrec eq 'n' ? domainName($dbh, $zoneid) : revName($dbh, $zoneid));
1791
1792 return ('FAIL', ($revrec eq 'n' ? 'Domain' : 'Reverse zone')." ID $zoneid doesn't exist") if !$zone;
1793
1794 # Set this up here since we may use if if $config{log_failures} is enabled
1795 my %loghash;
1796 $loghash{domain_id} = $zoneid if $revrec eq 'n';
1797 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
1798 $loghash{group_id} = parentID($dbh,
1799 (id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
1800
1801 # Wrap all the SQL in a transaction
1802 eval {
1803 # Disentangle custom record types before removing the
1804 # ones that are only in the zone to be deleted
1805 if ($revrec eq 'n') {
1806 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
1807 $failmsg = "Failure converting multizone types to single-zone";
1808 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
1809 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
1810 $sth->execute(65282, $zoneid, 65283);
1811 $sth->execute(65282, $zoneid, 65284);
1812 $failmsg = "Failure removing domain records";
1813 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
1814 $failmsg = "Failure removing domain";
1815 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
1816 } else {
1817 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
1818 $failmsg = "Failure converting multizone types to single-zone";
1819 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
1820 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
1821# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
1822# $sth->execute(65286?, $zoneid, 65283);
1823# $sth->execute(65286?, $zoneid, 65284);
1824 $failmsg = "Failure removing reverse records";
1825 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
1826 $failmsg = "Failure removing reverse zone";
1827 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
1828 }
1829
1830 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
1831 $loghash{entry} = $msg;
1832 _log($dbh, %loghash);
1833
1834 # once we get here, we should have suceeded.
1835 $dbh->commit;
1836 }; # end eval
1837
1838 if ($@) {
1839 $msg = $@;
1840 eval { $dbh->rollback; };
1841 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
1842 if ($config{log_failures}) {
1843 _log($dbh, %loghash);
1844 $dbh->commit; # since we enabled transactions earlier
1845 }
1846 return ('FAIL', $loghash{entry});
1847 } else {
1848 return ('OK', $msg);
1849 }
1850
1851} # end delZone()
1852
1853
1854## DNSDB::domainName()
1855# Return the domain name based on a domain ID
1856# Takes a database handle and the domain ID
1857# Returns the domain name or undef on failure
1858sub domainName {
1859 $errstr = '';
1860 my $dbh = shift;
1861 my $domid = shift;
1862 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
1863 $errstr = $DBI::errstr if !$domname;
1864 return $domname if $domname;
1865} # end domainName()
1866
1867
1868## DNSDB::revName()
1869# Return the reverse zone name based on an rDNS ID
1870# Takes a database handle and the rDNS ID
1871# Returns the reverse zone name or undef on failure
1872sub revName {
1873 $errstr = '';
1874 my $dbh = shift;
1875 my $revid = shift;
1876 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
1877 $errstr = $DBI::errstr if !$revname;
1878 return $revname if $revname;
1879} # end revName()
1880
1881
1882## DNSDB::domainID()
1883# Takes a database handle and domain name
1884# Returns the domain ID number
1885sub domainID {
1886 $errstr = '';
1887 my $dbh = shift;
1888 my $domain = shift;
1889 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
1890 $errstr = $DBI::errstr if !$domid;
1891 return $domid if $domid;
1892} # end domainID()
1893
1894
1895## DNSDB::revID()
1896# Takes a database handle and reverse zone name
1897# Returns the rDNS ID number
1898sub revID {
1899 $errstr = '';
1900 my $dbh = shift;
1901 my $revzone = shift;
1902 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
1903 $errstr = $DBI::errstr if !$revid;
1904 return $revid if $revid;
1905} # end revID()
1906
1907
1908## DNSDB::addRDNS
1909# Adds a reverse DNS zone
1910# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
1911# and boolean(ish) state (active/inactive)
1912# Returns a status code and message
1913sub addRDNS {
1914 my $dbh = shift;
1915 my $zone = NetAddr::IP->new(shift);
1916 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
1917 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
1918 my $group = shift;
1919 my $state = shift;
1920
1921 $state = 1 if $state =~ /^active$/;
1922 $state = 1 if $state =~ /^on$/;
1923 $state = 0 if $state =~ /^inactive$/;
1924 $state = 0 if $state =~ /^off$/;
1925
1926 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
1927
1928# quick check to start to see if we've already got one
1929 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
1930
1931 return ('FAIL', "Zone already exists") if $rdns_id;
1932
1933 # Allow transactions, and raise an exception on errors so we can catch it later.
1934 # Use local to make sure these get "reset" properly on exiting this block
1935 local $dbh->{AutoCommit} = 0;
1936 local $dbh->{RaiseError} = 1;
1937
1938 my $warnstr = '';
1939 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
1940 # wrong, we should have a value to override this anyway.
1941
1942 # Wrap all the SQL in a transaction
1943 eval {
1944 # insert the domain...
1945 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($zone, $group, $state));
1946
1947 # get the ID...
1948 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
1949
1950 _log($dbh, (rdns_id => $rdns_id, group_id => $group,
1951 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone"));
1952
1953 # ... and now we construct the standard records from the default set. NB: group should be variable.
1954 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
1955 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl)".
1956 " VALUES ($rdns_id,?,?,?,?,?)");
1957 $sth->execute($group);
1958 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
1959 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
1960 if ($zone->{isv6}) {
1961 next if ($type == 65280 || $type == 65283);
1962 } else {
1963 next if ($type == 65281 || $type == 65284);
1964 }
1965
1966 $host =~ s/ADMINDOMAIN/$config{domain}/g;
1967
1968 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
1969 # On failure, tack a note on to a warning string and continue without adding this record.
1970 # While we're at it, we substitute $zone for ZONE in the value.
1971 if ($val eq 'ZONE') {
1972 next if $revpatt; # If we've got a pattern, we skip the default record version.
1973##fixme? do we care if we have multiple whole-zone templates?
1974 $val = $zone->network;
1975 } elsif ($val =~ /ZONE/) {
1976 my $tmpval = $val;
1977 $tmpval =~ s/ZONE//;
1978 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
1979 # as either v4 or v6. May make this an off-by-default config flag
1980 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
1981 if ($type == 12 || $type == 65282) {
1982 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
1983 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
1984 }
1985 my $addr;
1986 if (_ipparent($dbh, 'n', 'y', \$tmpval, $rdns_id, \$addr)) {
1987 $val = $addr->addr;
1988 } else {
1989 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
1990 next;
1991 }
1992 }
1993
1994 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
1995 # NS records get this substitution on the value instead.
1996 $host = _ZONE($zone, $host) if $type != 2;
1997
1998 # Fill in the forward domain ID if we can find it, otherwise:
1999 # Coerce type down to PTR or PTR template if we can't
2000 my $domid = 0;
2001 if ($type >= 65280) {
2002 if (!($domid = _hostparent($dbh, $host))) {
2003 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
2004 $type = $reverse_typemap{PTR};
2005 $domid = 0; # just to be explicit.
2006 }
2007 }
2008
2009 $sth_in->execute($domid,$host,$type,$val,$ttl);
2010
2011 if ($typemap{$type} eq 'SOA') {
2012 my @tmp1 = split /:/, $host;
2013 my @tmp2 = split /:/, $val;
2014 _log($dbh, (rdns_id => $rdns_id, group_id => $group,
2015 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
2016 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
2017 $defttl = $tmp2[3];
2018 } else {
2019 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2020 _log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2021 entry => $logentry." $val', TTL $ttl"));
2022 }
2023 }
2024
2025 # Generate record based on provided pattern.
2026 if ($revpatt) {
2027 my $host;
2028 my $type = ($zone->{isv6} ? 65284 : 65283);
2029 my $val = $zone->network;
2030
2031 # Substitute $zone for ZONE in the hostname.
2032 $host = _ZONE($zone, $revpatt);
2033
2034 my $domid = 0;
2035 if (!($domid = _hostparent($dbh, $host))) {
2036 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2037 $type = 65282;
2038 $domid = 0; # just to be explicit.
2039 }
2040
2041 $sth_in->execute($domid,$host,$type,$val,$defttl);
2042 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2043 _log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2044 entry => $logentry." $val', TTL $defttl from pattern"));
2045 }
2046
2047 # If there are warnings (presumably about default records skipped for cause) log them
2048 _log($dbh, (rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr"))
2049 if $warnstr;
2050
2051 # once we get here, we should have suceeded.
2052 $dbh->commit;
2053 }; # end eval
2054
2055 if ($@) {
2056 my $msg = $@;
2057 eval { $dbh->rollback; };
2058 _log($dbh, (group_id => $group, entry => "Failed adding reverse zone $zone ($msg)"))
2059 if $config{log_failures};
2060 $dbh->commit; # since we enabled transactions earlier
2061 return ('FAIL',$msg);
2062 } else {
2063 my $retcode = 'OK';
2064 if ($warnstr) {
2065 $resultstr = $warnstr;
2066 $retcode = 'WARN';
2067 }
2068 return ($retcode, $rdns_id);
2069 }
2070
2071} # end addRDNS()
2072
2073
2074## DNSDB::getZoneCount
2075# Get count of zones in group or groups
2076# Takes a database handle and hash containing:
2077# - the "current" group
2078# - an array of "acceptable" groups
2079# - a flag for forward/reverse zones
2080# - Optionally accept a "starts with" and/or "contains" filter argument
2081# Returns an integer count of the resulting zone list.
2082sub getZoneCount {
2083 my $dbh = shift;
2084
2085 my %args = @_;
2086
2087 my @filterargs;
2088 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2089 push @filterargs, "^$args{startwith}" if $args{startwith};
2090 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2091 push @filterargs, $args{filter} if $args{filter};
2092
2093 my $sql;
2094 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2095 if ($args{revrec} eq 'n') {
2096 $sql = "SELECT count(*) FROM domains".
2097 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2098 ($args{startwith} ? " AND domain ~* ?" : '').
2099 ($args{filter} ? " AND domain ~* ?" : '');
2100 } else {
2101 $sql = "SELECT count(*) FROM revzones".
2102 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2103 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2104 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2105 }
2106 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2107 return $count;
2108} # end getZoneCount()
2109
2110
2111## DNSDB::getZoneList()
2112# Get a list of zones in the specified group(s)
2113# Takes the same arguments as getZoneCount() above
2114# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2115sub getZoneList {
2116 my $dbh = shift;
2117
2118 my %args = @_;
2119
2120 my @zonelist;
2121
2122 $args{sortorder} = 'ASC' if !grep /^$args{sortorder}$/, ('ASC','DESC');
2123 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2124
2125 my @filterargs;
2126 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2127 push @filterargs, "^$args{startwith}" if $args{startwith};
2128 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2129 push @filterargs, $args{filter} if $args{filter};
2130
2131 my $sql;
2132 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2133 if ($args{revrec} eq 'n') {
2134 $args{sortby} = 'domain' if !grep /^$args{sortby}$/, ('domain','group','status');
2135 $sql = "SELECT domain_id,domain,status,groups.group_name AS group FROM domains".
2136 " INNER JOIN groups ON domains.group_id=groups.group_id".
2137 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2138 ($args{startwith} ? " AND domain ~* ?" : '').
2139 ($args{filter} ? " AND domain ~* ?" : '');
2140 } else {
2141##fixme: arguably startwith here is irrelevant. depends on the UI though.
2142 $args{sortby} = 'revnet' if !grep /^$args{sortby}$/, ('revnet','group','status');
2143 $sql = "SELECT rdns_id,revnet,status,groups.group_name AS group FROM revzones".
2144 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2145 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2146 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2147 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2148 }
2149 # A common tail.
2150 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2151 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage}".
2152 " OFFSET ".$args{offset}*$config{perpage});
2153 my $sth = $dbh->prepare($sql);
2154 $sth->execute(@filterargs);
2155 my $rownum = 0;
2156
2157 while (my @data = $sth->fetchrow_array) {
2158 my %row;
2159 $row{domainid} = $data[0];
2160 $row{domain} = $data[1];
2161 $row{status} = $data[2];
2162 $row{group} = $data[3];
2163 push @zonelist, \%row;
2164 }
2165
2166 return \@zonelist;
2167} # end getZoneList()
2168
2169
2170## DNSDB::addGroup()
2171# Add a group
2172# Takes a database handle, group name, parent group, hashref for permissions,
2173# and optional template-vs-cloneme flag for the default records
2174# Returns a status code and message
2175sub addGroup {
2176 $errstr = '';
2177 my $dbh = shift;
2178 my $groupname = shift;
2179 my $pargroup = shift;
2180 my $permissions = shift;
2181
2182 # 0 indicates "custom", hardcoded.
2183 # Any other value clones that group's default records, if it exists.
2184 my $inherit = shift || 0;
2185##fixme: need a flag to indicate clone records or <?> ?
2186
2187 # Allow transactions, and raise an exception on errors so we can catch it later.
2188 # Use local to make sure these get "reset" properly on exiting this block
2189 local $dbh->{AutoCommit} = 0;
2190 local $dbh->{RaiseError} = 1;
2191
2192 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2193
2194 return ('FAIL', "Group already exists") if $group_id;
2195
2196 # Wrap all the SQL in a transaction
2197 eval {
2198 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2199
2200 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2201
2202 # We work through the whole set of permissions instead of specifying them so
2203 # that when we add a new permission, we don't have to change the code anywhere
2204 # that doesn't explicitly deal with that specific permission.
2205 my @permvals;
2206 foreach (@permtypes) {
2207 if (!defined ($permissions->{$_})) {
2208 push @permvals, 0;
2209 } else {
2210 push @permvals, $permissions->{$_};
2211 }
2212 }
2213 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2214 undef, ($groupid, @permvals) );
2215 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2216 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2217
2218 # Default records
2219 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2220 "VALUES ($groupid,?,?,?,?,?,?,?)");
2221 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2222 "VALUES ($groupid,?,?,?,?)");
2223 if ($inherit) {
2224 # Duplicate records from parent. Actually relying on inherited records feels
2225 # very fragile, and it would be problematic to roll over at a later time.
2226 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2227 $sth2->execute($pargroup);
2228 while (my @clonedata = $sth2->fetchrow_array) {
2229 $sthf->execute(@clonedata);
2230 }
2231 # And now the reverse records
2232 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2233 $sth2->execute($pargroup);
2234 while (my @clonedata = $sth2->fetchrow_array) {
2235 $sthr->execute(@clonedata);
2236 }
2237 } else {
2238##fixme: Hardcoding is Bad, mmmmkaaaay?
2239 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2240 # could load from a config file, but somewhere along the line we need hardcoded bits.
2241 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2242 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2243 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2244 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2245 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2246 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2247 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2248 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2249 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2250 }
2251
2252 _log($dbh, (group_id => $pargroup, entry => "Added group $groupname") );
2253
2254 # once we get here, we should have suceeded.
2255 $dbh->commit;
2256 }; # end eval
2257
2258 if ($@) {
2259 my $msg = $@;
2260 eval { $dbh->rollback; };
2261 if ($config{log_failures}) {
2262 _log($dbh, (group_id => $pargroup, entry => "Failed to add group $groupname: $msg") );
2263 $dbh->commit;
2264 }
2265 return ('FAIL',$msg);
2266 }
2267
2268 return ('OK','OK');
2269} # end addGroup()
2270
2271
2272## DNSDB::delGroup()
2273# Delete a group.
2274# Takes a group ID
2275# Returns a status code and message
2276sub delGroup {
2277 my $dbh = shift;
2278 my $groupid = shift;
2279
2280 # Allow transactions, and raise an exception on errors so we can catch it later.
2281 # Use local to make sure these get "reset" properly on exiting this block
2282 local $dbh->{AutoCommit} = 0;
2283 local $dbh->{RaiseError} = 1;
2284
2285##fixme: locate "knowable" error conditions and deal with them before the eval
2286# ... or inside, whatever.
2287# -> domains still exist in group
2288# -> ...
2289 my $failmsg = '';
2290 my $resultmsg = '';
2291
2292 # collect some pieces for logging and error messages
2293 my $groupname = groupName($dbh,$groupid);
2294 my $parid = parentID($dbh, (id => $groupid, type => 'group'));
2295
2296 # Wrap all the SQL in a transaction
2297 eval {
2298 # Check for Things in the group
2299 $failmsg = "Can't remove group $groupname";
2300 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2301 die "$grpcnt groups still in group\n" if $grpcnt;
2302 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2303 die "$domcnt domains still in group\n" if $domcnt;
2304 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2305 die "$usercnt users still in group\n" if $usercnt;
2306
2307 $failmsg = "Failed to delete default records for $groupname";
2308 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2309 $failmsg = "Failed to delete default reverse records for $groupname";
2310 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2311 $failmsg = "Failed to remove group $groupname";
2312 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2313
2314 _log($dbh, (group_id => $parid, entry => "Deleted group $groupname"));
2315 $resultmsg = "Deleted group $groupname";
2316
2317 # once we get here, we should have suceeded.
2318 $dbh->commit;
2319 }; # end eval
2320
2321 if ($@) {
2322 my $msg = $@;
2323 eval { $dbh->rollback; };
2324 if ($config{log_failures}) {
2325 _log($dbh, (group_id => $parid, entry => "$failmsg: $msg"));
2326 $dbh->commit; # since we enabled transactions earlier
2327 }
2328 return ('FAIL',"$failmsg: $msg");
2329 }
2330
2331 return ('OK',$resultmsg);
2332} # end delGroup()
2333
2334
2335## DNSDB::getChildren()
2336# Get a list of all groups whose parent^n is group <n>
2337# Takes a database handle, group ID, reference to an array to put the group IDs in,
2338# and an optional flag to return only immediate children or all children-of-children
2339# default to returning all children
2340# Calls itself
2341sub getChildren {
2342 $errstr = '';
2343 my $dbh = shift;
2344 my $rootgroup = shift;
2345 my $groupdest = shift;
2346 my $immed = shift || 'all';
2347
2348 # special break for default group; otherwise we get stuck.
2349 if ($rootgroup == 1) {
2350 # by definition, group 1 is the Root Of All Groups
2351 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2352 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2353 $sth->execute;
2354 while (my @this = $sth->fetchrow_array) {
2355 push @$groupdest, @this;
2356 }
2357 } else {
2358 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2359 $sth->execute($rootgroup);
2360 return if $sth->rows == 0;
2361 my @grouplist;
2362 while (my ($group) = $sth->fetchrow_array) {
2363 push @$groupdest, $group;
2364 getChildren($dbh,$group,$groupdest) if $immed eq 'all';
2365 }
2366 }
2367} # end getChildren()
2368
2369
2370## DNSDB::groupName()
2371# Return the group name based on a group ID
2372# Takes a database handle and the group ID
2373# Returns the group name or undef on failure
2374sub groupName {
2375 $errstr = '';
2376 my $dbh = shift;
2377 my $groupid = shift;
2378 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2379 $sth->execute($groupid);
2380 my ($groupname) = $sth->fetchrow_array();
2381 $errstr = $DBI::errstr if !$groupname;
2382 return $groupname if $groupname;
2383} # end groupName
2384
2385
2386## DNSDB::getGroupCount()
2387# Get count of subgroups in group or groups
2388# Takes a database handle and hash containing:
2389# - the "current" group
2390# - an array of "acceptable" groups
2391# - Optionally accept a "starts with" and/or "contains" filter argument
2392# Returns an integer count of the resulting group list.
2393sub getGroupCount {
2394 my $dbh = shift;
2395
2396 my %args = @_;
2397
2398 my @filterargs;
2399
2400 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2401 push @filterargs, "^$args{startwith}" if $args{startwith};
2402 push @filterargs, $args{filter} if $args{filter};
2403
2404 my $sql = "SELECT count(*) FROM groups ".
2405 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2406 ($args{startwith} ? " AND group_name ~* ?" : '').
2407 ($args{filter} ? " AND group_name ~* ?" : '');
2408 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2409 $errstr = $dbh->errstr if !$count;
2410 return $count;
2411} # end getGroupCount
2412
2413
2414## DNSDB::getGroupList()
2415# Get a list of sub^n-groups in the specified group(s)
2416# Takes the same arguments as getGroupCount() above
2417# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2418sub getGroupList {
2419 my $dbh = shift;
2420
2421 my %args = @_;
2422
2423 my @filterargs;
2424
2425 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2426 push @filterargs, "^$args{startwith}" if $args{startwith};
2427 push @filterargs, $args{filter} if $args{filter};
2428
2429 # protection against bad or missing arguments
2430 $args{sortorder} = 'ASC' if !$args{sortorder};
2431 $args{offset} = 0 if !$args{offset};
2432
2433 # munge sortby for columns in database
2434 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2435 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2436
2437 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup,
2438 count(distinct(u.username)) AS nusers, count(distinct(d.domain)) AS ndomains,
2439 count(distinct(r.revnet)) AS nrevzones
2440 FROM groups g
2441 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2442 LEFT OUTER JOIN users u ON u.group_id=g.group_id
2443 LEFT OUTER JOIN domains d ON d.group_id=g.group_id
2444 LEFT OUTER JOIN revzones r ON r.group_id=g.group_id
2445 ).
2446 "WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2447 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2448 ($args{filter} ? " AND g.group_name ~* ?" : '').
2449 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2450 " ORDER BY $args{sortby} $args{sortorder} ".
2451 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2452 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2453 $errstr = $dbh->errstr if !$glist;
2454 return $glist;
2455} # end getGroupList
2456
2457
2458## DNSDB::groupID()
2459# Return the group ID based on the group name
2460# Takes a database handle and the group name
2461# Returns the group ID or undef on failure
2462sub groupID {
2463 $errstr = '';
2464 my $dbh = shift;
2465 my $group = shift;
2466 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
2467 $errstr = $DBI::errstr if !$grpid;
2468 return $grpid if $grpid;
2469} # end groupID()
2470
2471
2472## DNSDB::addUser()
2473# Add a user.
2474# Takes a DB handle, username, group ID, password, state (active/inactive).
2475# Optionally accepts:
2476# user type (user/admin) - defaults to user
2477# permissions string - defaults to inherit from group
2478# three valid forms:
2479# i - Inherit permissions
2480# c:<user_id> - Clone permissions from <user_id>
2481# C:<permission list> - Set these specific permissions
2482# first name - defaults to username
2483# last name - defaults to blank
2484# phone - defaults to blank (could put other data within column def)
2485# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2486sub addUser {
2487 $errstr = '';
2488 my $dbh = shift;
2489 my $username = shift;
2490 my $group = shift;
2491 my $pass = shift;
2492 my $state = shift;
2493
2494 return ('FAIL', "Missing one or more required entries") if !defined($state);
2495 return ('FAIL', "Username must not be blank") if !$username;
2496
2497 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2498
2499 my $permstring = shift || 'i'; # default is to inhert permissions from group
2500
2501 my $fname = shift || $username;
2502 my $lname = shift || '';
2503 my $phone = shift || ''; # not going format-check
2504
2505 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2506 my $user_id;
2507
2508# quick check to start to see if we've already got one
2509 $sth->execute($username);
2510 ($user_id) = $sth->fetchrow_array;
2511
2512 return ('FAIL', "User already exists") if $user_id;
2513
2514 # Allow transactions, and raise an exception on errors so we can catch it later.
2515 # Use local to make sure these get "reset" properly on exiting this block
2516 local $dbh->{AutoCommit} = 0;
2517 local $dbh->{RaiseError} = 1;
2518
2519 # Wrap all the SQL in a transaction
2520 eval {
2521 # insert the user... note we set inherited perms by default since
2522 # it's simple and cleans up some other bits of state
2523 my $sth = $dbh->prepare("INSERT INTO users ".
2524 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2525 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2526 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2527
2528 # get the ID...
2529 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2530
2531# Permissions! Gotta set'em all!
2532 die "Invalid permission string $permstring"
2533 if $permstring !~ /^(?:
2534 i # inherit
2535 |c:\d+ # clone
2536 # custom. no, the leading , is not a typo
2537 |C:(?:,(?:group|user|domain|record|self)_(?:edit|create|delete))*
2538 )$/x;
2539# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2540 if ($permstring ne 'i') {
2541 # for cloned or custom permissions, we have to create a new permissions entry.
2542 my $clonesrc = $group;
2543 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2544 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2545 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2546 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2547 undef, ($user_id,$clonesrc) );
2548 $dbh->do("UPDATE users SET permission_id=".
2549 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2550 "WHERE user_id=?", undef, ($user_id, $user_id) );
2551 }
2552 if ($permstring =~ /^C:/) {
2553 # finally for custom permissions, we set the passed-in permissions (and unset
2554 # any that might have been brought in by the clone operation above)
2555 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2556 undef, ($user_id) );
2557 foreach (@permtypes) {
2558 if ($permstring =~ /,$_/) {
2559 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2560 } else {
2561 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2562 }
2563 }
2564 }
2565
2566 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2567
2568##fixme: add another table to hold name/email for log table?
2569
2570 _log($dbh, (group_id => $group, entry => "Added user $username ($fname $lname)"));
2571 # once we get here, we should have suceeded.
2572 $dbh->commit;
2573 }; # end eval
2574
2575 if ($@) {
2576 my $msg = $@;
2577 eval { $dbh->rollback; };
2578 if ($config{log_failures}) {
2579 _log($dbh, (group_id => $group, entry => "Error adding user $username: $msg"));
2580 $dbh->commit; # since we enabled transactions earlier
2581 }
2582 return ('FAIL',"Error adding user $username: $msg");
2583 }
2584
2585 return ('OK',"User $username ($fname $lname) added");
2586} # end addUser
2587
2588
2589## DNSDB::getUserCount()
2590# Get count of users in group
2591# Takes a database handle and hash containing at least the current group, and optionally:
2592# - a reference list of secondary groups
2593# - a filter string
2594# - a "Starts with" string
2595sub getUserCount {
2596 my $dbh = shift;
2597
2598 my %args = @_;
2599
2600 my @filterargs;
2601
2602 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2603 push @filterargs, "^$args{startwith}" if $args{startwith};
2604 push @filterargs, $args{filter} if $args{filter};
2605
2606
2607 my $sql = "SELECT count(*) FROM users ".
2608 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2609 ($args{startwith} ? " AND username ~* ?" : '').
2610 ($args{filter} ? " AND username ~* ?" : '');
2611 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2612 $errstr = $dbh->errstr if !$count;
2613 return $count;
2614} # end getUserCount()
2615
2616
2617## DNSDB::getUserList()
2618# Get list of users
2619# Takes the same arguments as getUserCount() above, plus optional:
2620# - sort field
2621# - sort order
2622# - offset/return-all-everything flag (defaults to $perpage records)
2623sub getUserList {
2624 my $dbh = shift;
2625
2626 my %args = @_;
2627
2628 my @filterargs;
2629
2630 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2631 push @filterargs, "^$args{startwith}" if $args{startwith};
2632 push @filterargs, $args{filter} if $args{filter};
2633
2634 # better to request sorts on "simple" names, but it means we need to map it to real columns
2635 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
2636 fname => 'fname');
2637 $args{sortby} = $sortmap{$args{sortby}};
2638
2639 # protection against bad or missing arguments
2640 $args{sortorder} = 'ASC' if !$args{sortorder};
2641 $args{sortby} = 'u.username' if !$args{sortby};
2642 $args{offset} = 0 if !$args{offset};
2643
2644 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
2645 "FROM users u ".
2646 "INNER JOIN groups g ON u.group_id=g.group_id ".
2647 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2648 ($args{startwith} ? " AND u.username ~* ?" : '').
2649 ($args{filter} ? " AND u.username ~* ?" : '').
2650 " ORDER BY $args{sortby} $args{sortorder} ".
2651 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2652 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2653 $errstr = $dbh->errstr if !$ulist;
2654 return $ulist;
2655} # end getUserList()
2656
2657
2658## DNSDB::getUserDropdown()
2659# Get a list of usernames for use in a dropdown menu.
2660# Takes a database handle, current group, and optional "tag this as selected" flag.
2661# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
2662sub getUserDropdown {
2663 my $dbh = shift;
2664 my $grp = shift;
2665 my $sel = shift || 0;
2666
2667 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
2668 $sth->execute($grp);
2669
2670 my @userlist;
2671 while (my ($username,$uid) = $sth->fetchrow_array) {
2672 my %row = (
2673 username => $username,
2674 uid => $uid,
2675 selected => ($sel == $uid ? 1 : 0)
2676 );
2677 push @userlist, \%row;
2678 }
2679 return \@userlist;
2680} # end getUserDropdown()
2681
2682
2683## DNSDB::checkUser()
2684# Check user/pass combo on login
2685sub checkUser {
2686 my $dbh = shift;
2687 my $user = shift;
2688 my $inpass = shift;
2689
2690 my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
2691 $sth->execute($user);
2692 my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
2693 my $loginfailed = 1 if !defined($uid);
2694
2695 if ($pass =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
2696 $loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
2697 } else {
2698 $loginfailed = 1 if $pass ne $inpass;
2699 }
2700
2701 # nnnngggg
2702 return ($uid, $gid);
2703} # end checkUser
2704
2705
2706## DNSDB:: updateUser()
2707# Update general data about user
2708sub updateUser {
2709 my $dbh = shift;
2710
2711##fixme: tweak calling convention so that we can update any given bit of data
2712 my $uid = shift;
2713 my $username = shift;
2714 my $group = shift;
2715 my $pass = shift;
2716 my $state = shift;
2717 my $type = shift || 'u';
2718 my $fname = shift || $username;
2719 my $lname = shift || '';
2720 my $phone = shift || ''; # not going format-check
2721
2722 my $resultmsg = '';
2723
2724 # Allow transactions, and raise an exception on errors so we can catch it later.
2725 # Use local to make sure these get "reset" properly on exiting this block
2726 local $dbh->{AutoCommit} = 0;
2727 local $dbh->{RaiseError} = 1;
2728
2729 my $sth;
2730
2731 # Password can be left blank; if so we assume there's one on file.
2732 # Actual blank passwords are bad, mm'kay?
2733 if (!$pass) {
2734 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
2735 } else {
2736 $pass = unix_md5_crypt($pass);
2737 }
2738
2739 eval {
2740 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
2741 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
2742 $resultmsg = "Updated user info for $username ($fname $lname)";
2743 _log($dbh, group_id => $group, entry => $resultmsg);
2744 $dbh->commit;
2745 };
2746 if ($@) {
2747 my $msg = $@;
2748 eval { $dbh->rollback; };
2749 if ($config{log_failures}) {
2750 _log($dbh, (group_id => $group, entry => "Error updating user $username: $msg"));
2751 $dbh->commit; # since we enabled transactions earlier
2752 }
2753 return ('FAIL',"Error updating user $username: $msg");
2754 }
2755
2756 return ('OK',$resultmsg);
2757} # end updateUser()
2758
2759
2760## DNSDB::delUser()
2761# Delete a user.
2762# Takes a database handle and user ID
2763# Returns a success/failure code and matching message
2764sub delUser {
2765 my $dbh = shift;
2766 my $userid = shift;
2767
2768 return ('FAIL',"Bad userid") if !defined($userid);
2769
2770 my $userdata = getUserData($dbh, $userid);
2771
2772 # Allow transactions, and raise an exception on errors so we can catch it later.
2773 # Use local to make sure these get "reset" properly on exiting this block
2774 local $dbh->{AutoCommit} = 0;
2775 local $dbh->{RaiseError} = 1;
2776
2777 eval {
2778 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
2779 _log($dbh, (group_id => $userdata->{group_id},
2780 entry => "Deleted user ID $userid/".$userdata->{username}.
2781 " (".$userdata->{firstname}." ".$userdata->{lastname}.")") );
2782 $dbh->commit;
2783 };
2784 if ($@) {
2785 my $msg = $@;
2786 eval { $dbh->rollback; };
2787 if ($config{log_failures}) {
2788 _log($dbh, (group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
2789 "$userid/".$userdata->{username}.": $msg") );
2790 $dbh->commit;
2791 }
2792 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
2793 }
2794
2795 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
2796} # end delUser
2797
2798
2799## DNSDB::userFullName()
2800# Return a pretty string!
2801# Takes a user_id and optional printf-ish string to indicate which pieces where:
2802# %u for the username
2803# %f for the first name
2804# %l for the last name
2805# All other text in the passed string will be left as-is.
2806##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
2807sub userFullName {
2808 $errstr = '';
2809 my $dbh = shift;
2810 my $userid = shift;
2811 my $fullformat = shift || '%f %l (%u)';
2812 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
2813 $sth->execute($userid);
2814 my ($uname,$fname,$lname) = $sth->fetchrow_array();
2815 $errstr = $DBI::errstr if !$uname;
2816
2817 $fullformat =~ s/\%u/$uname/g;
2818 $fullformat =~ s/\%f/$fname/g;
2819 $fullformat =~ s/\%l/$lname/g;
2820
2821 return $fullformat;
2822} # end userFullName
2823
2824
2825## DNSDB::userStatus()
2826# Sets and/or returns a user's status
2827# Takes a database handle, user ID and optionally a status argument
2828# Returns undef on errors.
2829sub userStatus {
2830 my $dbh = shift;
2831 my $id = shift;
2832 my $newstatus = shift || 'mu';
2833
2834 return undef if $id !~ /^\d+$/;
2835
2836 my $userdata = getUserData($dbh, $id);
2837
2838 # Allow transactions, and raise an exception on errors so we can catch it later.
2839 # Use local to make sure these get "reset" properly on exiting this block
2840 local $dbh->{AutoCommit} = 0;
2841 local $dbh->{RaiseError} = 1;
2842
2843 if ($newstatus ne 'mu') {
2844 # ooo, fun! let's see what we were passed for status
2845 eval {
2846 $newstatus = 0 if $newstatus eq 'useroff';
2847 $newstatus = 1 if $newstatus eq 'useron';
2848 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
2849
2850 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
2851 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
2852
2853 my %loghash;
2854 $loghash{group_id} = parentID($dbh, (id => $id, type => 'user'));
2855 $loghash{entry} = $resultstr;
2856 _log($dbh, %loghash);
2857
2858 $dbh->commit;
2859 };
2860 if ($@) {
2861 my $msg = $@;
2862 eval { $dbh->rollback; };
2863 $resultstr = '';
2864 $errstr = $msg;
2865##fixme: failure logging?
2866 return;
2867 }
2868 }
2869
2870 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
2871 return $status;
2872} # end userStatus()
2873
2874
2875## DNSDB::getUserData()
2876# Get misc user data for display
2877sub getUserData {
2878 my $dbh = shift;
2879 my $uid = shift;
2880
2881 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
2882 "FROM users WHERE user_id=?");
2883 $sth->execute($uid);
2884 return $sth->fetchrow_hashref();
2885
2886} # end getUserData()
2887
2888
2889## DNSDB::getSOA()
2890# Return all suitable fields from an SOA record in separate elements of a hash
2891# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
2892sub getSOA {
2893 $errstr = '';
2894 my $dbh = shift;
2895 my $def = shift;
2896 my $rev = shift;
2897 my $id = shift;
2898
2899 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
2900 # - should really attach serial to the zone parent somewhere
2901
2902 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
2903 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
2904 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
2905 return if !$ret;
2906##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
2907
2908 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
2909 delete $ret->{host};
2910 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
2911 delete $ret->{val};
2912
2913 return $ret;
2914} # end getSOA()
2915
2916
2917## DNSDB::updateSOA()
2918# Update the specified SOA record
2919# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
2920# Returns a two-element list with a result code and message
2921sub updateSOA {
2922 my $dbh = shift;
2923 my $defrec = shift;
2924 my $revrec = shift;
2925
2926 my %soa = @_;
2927
2928 my $oldsoa = getSOA($dbh, $defrec, $revrec, $soa{id});
2929
2930 my $msg;
2931 my %logdata;
2932 if ($defrec eq 'n') {
2933 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
2934 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
2935 $logdata{group_id} = parentID($dbh, (id => $soa{id}, revrec => $revrec,
2936 type => ($revrec eq 'n' ? 'domain' : 'revzone') ) );
2937 } else {
2938 $logdata{group_id} = $soa{id};
2939 }
2940 my $parname = ($defrec eq 'y' ? groupName($dbh, $soa{id}) :
2941 ($revrec eq 'n' ? domainName($dbh, $soa{id}) : revName($dbh, $soa{id})) );
2942
2943 # Allow transactions, and raise an exception on errors so we can catch it later.
2944 # Use local to make sure these get "reset" properly on exiting this block
2945 local $dbh->{AutoCommit} = 0;
2946 local $dbh->{RaiseError} = 1;
2947
2948 eval {
2949 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
2950 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
2951 $soa{ttl}, $oldsoa->{record_id}) );
2952 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
2953 "SOA for $parname: ".
2954 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
2955 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
2956 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
2957 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
2958
2959 $logdata{entry} = $msg;
2960 _log($dbh, %logdata);
2961
2962 $dbh->commit;
2963 };
2964 if ($@) {
2965 $msg = $@;
2966 eval { $dbh->rollback; };
2967 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
2968 "SOA record for $parname: $msg";
2969 if ($config{log_failures}) {
2970 _log($dbh, %logdata);
2971 $dbh->commit;
2972 }
2973 return ('FAIL', $logdata{entry});
2974 } else {
2975 return ('OK', $msg);
2976 }
2977} # end updateSOA()
2978
2979
2980## DNSDB::getRecLine()
2981# Return all data fields for a zone record in separate elements of a hash
2982# Takes a database handle, default/live flag, forward/reverse flag, and record ID
2983sub getRecLine {
2984 $errstr = '';
2985 my $dbh = shift;
2986 my $defrec = shift;
2987 my $revrec = shift;
2988 my $id = shift;
2989
2990 my $sql = "SELECT record_id,host,type,val,ttl".($revrec eq 'n' ? ',distance,weight,port' : '').
2991 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id FROM ').
2992 _rectable($defrec,$revrec)." WHERE record_id=?";
2993 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
2994
2995 if ($dbh->err) {
2996 $errstr = $DBI::errstr;
2997 return undef;
2998 }
2999
3000 if (!$ret) {
3001 $errstr = "No such record";
3002 return undef;
3003 }
3004
3005 # explicitly set a parent id
3006 if ($defrec eq 'y') {
3007 $ret->{parid} = $ret->{group_id};
3008 } else {
3009 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
3010 # and a secondary if we have a custom type that lives in both a forward and reverse zone
3011 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
3012 }
3013
3014 return $ret;
3015}
3016
3017
3018##fixme: should use above (getRecLine()) to get lines for below?
3019## DNSDB::getDomRecs()
3020# Return records for a domain
3021# Takes a database handle, default/live flag, group/domain ID, start,
3022# number of records, sort field, and sort order
3023# Returns a reference to an array of hashes
3024sub getDomRecs {
3025 $errstr = '';
3026 my $dbh = shift;
3027 my $def = shift;
3028 my $rev = shift;
3029 my $id = shift;
3030 my $nrecs = shift || 'all';
3031 my $nstart = shift || 0;
3032
3033## for order, need to map input to column names
3034 my $order = shift || 'host';
3035 my $direction = shift || 'ASC';
3036
3037 my $filter = shift || '';
3038
3039 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3040 $sql .= ",r.distance,r.weight,r.port" if $rev eq 'n';
3041 $sql .= " FROM "._rectable($def,$rev)." r ";
3042 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3043 $sql .= "WHERE "._recparent($def,$rev)." = ?";
3044 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3045 $sql .= " AND host ~* ?" if $filter;
3046 # use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
3047 $sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
3048 # ensure consistent ordering by sorting on record_id too
3049 $sql .= ", record_id $direction";
3050
3051 my @bindvars = ($id);
3052 push @bindvars, $filter if $filter;
3053
3054 # just to be ultraparanoid about SQL injection vectors
3055 if ($nstart ne 'all') {
3056 $sql .= " LIMIT ? OFFSET ?";
3057 push @bindvars, $nrecs;
3058 push @bindvars, ($nstart*$nrecs);
3059 }
3060 my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
3061 $sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
3062
3063 my @retbase;
3064 while (my $ref = $sth->fetchrow_hashref()) {
3065 push @retbase, $ref;
3066 }
3067
3068 my $ret = \@retbase;
3069 return $ret;
3070} # end getDomRecs()
3071
3072
3073## DNSDB::getRecCount()
3074# Return count of non-SOA records in zone (or default records in a group)
3075# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3076# and optional filtering modifier
3077# Returns the count
3078sub getRecCount {
3079 my $dbh = shift;
3080 my $defrec = shift;
3081 my $revrec = shift;
3082 my $id = shift;
3083 my $filter = shift || '';
3084
3085 # keep the nasties down, since we can't ?-sub this bit. :/
3086 # note this is chars allowed in DNS hostnames
3087 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3088
3089 my @bindvars = ($id);
3090 push @bindvars, $filter if $filter;
3091 my $sql = "SELECT count(*) FROM ".
3092 _rectable($defrec,$revrec).
3093 " WHERE "._recparent($defrec,$revrec)."=? ".
3094 "AND NOT type=$reverse_typemap{SOA}".
3095 ($filter ? " AND host ~* ?" : '');
3096 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3097
3098 return $count;
3099
3100} # end getRecCount()
3101
3102
3103## DNSDB::addRec()
3104# Add a new record to a domain or a group's default records
3105# Takes a database handle, default/live flag, group/domain ID,
3106# host, type, value, and TTL
3107# Some types require additional detail: "distance" for MX and SRV,
3108# and weight/port for SRV
3109# Returns a status code and detail message in case of error
3110##fixme: pass a hash with the record data, not a series of separate values
3111sub addRec {
3112 $errstr = '';
3113 my $dbh = shift;
3114 my $defrec = shift;
3115 my $revrec = shift;
3116 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3117 # domain_id for domain records)
3118
3119 my $host = shift;
3120 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3121 my $val = shift;
3122 my $ttl = shift;
3123
3124 # prep for validation
3125 my $addr = NetAddr::IP->new($$val);
3126 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3127
3128 my $domid = 0;
3129 my $revid = 0;
3130
3131 my $retcode = 'OK'; # assume everything will go OK
3132 my $retmsg = '';
3133
3134 # do simple validation first
3135 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3136
3137 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3138 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3139 # of types. Other things may also be added to validate default records of several flavours.
3140 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z . _)")
3141 if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.-]+$/i;
3142
3143 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3144 my $dist = shift;
3145 my $weight = shift;
3146 my $port = shift;
3147
3148 my $fields;
3149 my @vallist;
3150
3151 # Call the validation sub for the type requested.
3152 ($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec, id => $id,
3153 host => $host, rectype => $rectype, val => $val, addr => $addr,
3154 dist => \$dist, port => \$port, weight => \$weight,
3155 fields => \$fields, vallist => \@vallist) );
3156
3157 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3158
3159 # Set up database fields and bind parameters
3160 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3161 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3162 my $vallen = '?'.(',?'x$#vallist);
3163
3164 # Put together the success log entry. We have to use this horrible kludge
3165 # because domain_id and rdns_id may or may not be present, and if they are,
3166 # they're not at a guaranteed consistent index in the array. wheee!
3167 my %logdata;
3168 my @ftmp = split /,/, $fields;
3169 for (my $i=0; $i <= $#vallist; $i++) {
3170 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3171 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3172 }
3173 $logdata{group_id} = $id if $defrec eq 'y';
3174 $logdata{group_id} = parentID($dbh,
3175 (id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3176 if $defrec eq 'n';
3177 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3178 # NS records for revzones get special treatment
3179 if ($revrec eq 'y' && $$rectype == 2) {
3180 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3181 } else {
3182 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3183 }
3184
3185 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3186 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3187 if $typemap{$$rectype} eq 'SRV';
3188 $logdata{entry} .= "', TTL $ttl";
3189
3190 # Allow transactions, and raise an exception on errors so we can catch it later.
3191 # Use local to make sure these get "reset" properly on exiting this block
3192 local $dbh->{AutoCommit} = 0;
3193 local $dbh->{RaiseError} = 1;
3194
3195 eval {
3196 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3197 undef, @vallist);
3198 _log($dbh, %logdata);
3199 $dbh->commit;
3200 };
3201 if ($@) {
3202 my $msg = $@;
3203 eval { $dbh->rollback; };
3204 if ($config{log_failures}) {
3205 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3206 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3207 _log($dbh, %logdata);
3208 $dbh->commit;
3209 }
3210 return ('FAIL',$msg);
3211 }
3212
3213 $resultstr = $logdata{entry};
3214 return ($retcode, $retmsg);
3215
3216} # end addRec()
3217
3218
3219## DNSDB::updateRec()
3220# Update a record
3221# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3222# Returns a status code and message
3223sub updateRec {
3224 $errstr = '';
3225
3226 my $dbh = shift;
3227 my $defrec = shift;
3228 my $revrec = shift;
3229 my $id = shift;
3230 my $parid = shift; # immediate parent entity that we're descending from to update the record
3231
3232 # all records have these
3233 my $host = shift;
3234 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
3235 my $rectype = shift;
3236 my $val = shift;
3237 my $ttl = shift;
3238
3239 # prep for validation
3240 my $addr = NetAddr::IP->new($$val);
3241 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3242
3243 my $domid = 0;
3244 my $revid = 0;
3245
3246 my $retcode = 'OK'; # assume everything will go OK
3247 my $retmsg = '';
3248
3249 # do simple validation first
3250 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3251
3252 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3253 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3254 # of types. Other things may also be added to validate default records of several flavours.
3255 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z - . _)")
3256 if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.-]+$/i;
3257
3258 # only MX and SRV will use these
3259 my $dist = shift || 0;
3260 my $weight = shift || 0;
3261 my $port = shift || 0;
3262
3263 my $fields;
3264 my @vallist;
3265
3266 # get old record data so we have the right parent ID
3267 # and for logging (eventually)
3268 my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
3269
3270 # Call the validation sub for the type requested.
3271 # Note the ID to pass here is the *parent*, not the record
3272 ($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec,
3273 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
3274 host => $host, rectype => $rectype, val => $val, addr => $addr,
3275 dist => \$dist, port => \$port, weight => \$weight,
3276 fields => \$fields, vallist => \@vallist,
3277 update => $id) );
3278
3279 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3280
3281 # Set up database fields and bind parameters. Note only the optional fields
3282 # (distance, weight, port, secondary parent ID) are added in the validation call above
3283 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3284 push @vallist, ($$host,$$rectype,$$val,$ttl,
3285 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
3286
3287 # hack hack PTHUI
3288 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
3289 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
3290 # mainly needed for crossover types that got coerced down to "standard" types
3291 if ($defrec eq 'n') {
3292 if ($$rectype == $reverse_typemap{PTR}) {
3293 $fields .= ",domain_id";
3294 push @vallist, 0;
3295 }
3296 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
3297 $fields .= ",rdns_id";
3298 push @vallist, 0;
3299 }
3300 }
3301 # fix fat-finger-originated record type changes
3302 if ($$rectype == 65285) {
3303 $fields .= ",rdns_id" if $revrec eq 'n';
3304 $fields .= ",domain_id" if $revrec eq 'y';
3305 push @vallist, 0;
3306 }
3307 if ($defrec eq 'n') {
3308 $domid = $parid if $revrec eq 'n';
3309 $revid = $parid if $revrec eq 'y';
3310 }
3311
3312 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
3313 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
3314 # will be maintained (due to "not-in-zone" validation changes)
3315 my %logdata;
3316 $logdata{domain_id} = $domid;
3317 $logdata{rdns_id} = $revid;
3318 my @ftmp = split /,/, $fields;
3319 for (my $i=0; $i <= $#vallist; $i++) {
3320 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3321 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3322 }
3323 $logdata{group_id} = $parid if $defrec eq 'y';
3324 $logdata{group_id} = parentID($dbh,
3325 (id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3326 if $defrec eq 'n';
3327 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
3328 # NS records for revzones get special treatment
3329 if ($revrec eq 'y' && $$rectype == 2) {
3330 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
3331 } else {
3332 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3333 }
3334 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3335 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3336 if $typemap{$oldrec->{type}} eq 'SRV';
3337 $logdata{entry} .= "', TTL $oldrec->{ttl}\nto\n";
3338 # More NS special
3339 if ($revrec eq 'y' && $$rectype == 2) {
3340 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
3341 } else {
3342 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
3343 }
3344 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3345 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
3346 $logdata{entry} .= "', TTL $ttl";
3347
3348 local $dbh->{AutoCommit} = 0;
3349 local $dbh->{RaiseError} = 1;
3350
3351 # Fiddle the field list into something suitable for updates
3352 $fields =~ s/,/=?,/g;
3353 $fields .= "=?";
3354
3355 eval {
3356 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
3357 _log($dbh, %logdata);
3358 $dbh->commit;
3359 };
3360 if ($@) {
3361 my $msg = $@;
3362 eval { $dbh->rollback; };
3363 if ($config{log_failures}) {
3364 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
3365 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3366 _log($dbh, %logdata);
3367 $dbh->commit;
3368 }
3369 return ('FAIL', $msg);
3370 }
3371
3372 $resultstr = $logdata{entry};
3373 return ($retcode, $retmsg);
3374} # end updateRec()
3375
3376
3377## DNSDB::delRec()
3378# Delete a record.
3379sub delRec {
3380 $errstr = '';
3381 my $dbh = shift;
3382 my $defrec = shift;
3383 my $revrec = shift;
3384 my $id = shift;
3385
3386 my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
3387
3388 # Allow transactions, and raise an exception on errors so we can catch it later.
3389 # Use local to make sure these get "reset" properly on exiting this block
3390 local $dbh->{AutoCommit} = 0;
3391 local $dbh->{RaiseError} = 1;
3392
3393 # Put together the log entry
3394 my %logdata;
3395 $logdata{domain_id} = $oldrec->{domain_id};
3396 $logdata{rdns_id} = $oldrec->{rdns_id};
3397 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
3398 $logdata{group_id} = parentID($dbh,
3399 (id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3400 if $defrec eq 'n';
3401 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
3402 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3403 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3404 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3405 if $typemap{$oldrec->{type}} eq 'SRV';
3406 $logdata{entry} .= "', TTL $oldrec->{ttl}\n";
3407
3408 eval {
3409 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
3410 _log($dbh, %logdata);
3411 $dbh->commit;
3412 };
3413 if ($@) {
3414 my $msg = $@;
3415 eval { $dbh->rollback; };
3416 if ($config{log_failures}) {
3417 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
3418 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3419 _log($dbh, %logdata);
3420 $dbh->commit;
3421 }
3422 return ('FAIL', $msg);
3423 }
3424
3425 return ('OK',$logdata{entry});
3426} # end delRec()
3427
3428
3429## DNSDB::getLogCount()
3430# Get a count of log entries
3431# Takes a database handle and a hash containing at least:
3432# - Entity ID and entity type as the primary log "slice"
3433sub getLogCount {
3434 my $dbh = shift;
3435
3436 my %args = @_;
3437
3438 my @filterargs;
3439##fixme: which fields do we want to filter on?
3440# push @filterargs,
3441
3442 $errstr = 'Missing primary parent ID and/or type';
3443 # fail early if we don't have a "prime" ID to look for log entries for
3444 return if !$args{id};
3445
3446 # or if the prime id type is missing or invalid
3447 return if !$args{logtype};
3448 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3449 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
3450 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
3451
3452 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3453
3454 my $sql = "SELECT count(*) FROM log ".
3455 "WHERE $id_col{$args{logtype}}=?".
3456 ($args{filter} ? " AND entry ~* ?" : '');
3457 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
3458 $errstr = $dbh->errstr if !$count;
3459 return $count;
3460} # end getLogCount()
3461
3462
3463## DNSDB::getLogEntries()
3464# Get a list of log entries
3465# Takes arguments as with getLogCount() above, plus optional:
3466# - sort field
3467# - sort order
3468# - offset for pagination
3469sub getLogEntries {
3470 my $dbh = shift;
3471
3472 my %args = @_;
3473
3474 my @filterargs;
3475
3476 # fail early if we don't have a "prime" ID to look for log entries for
3477 return if !$args{id};
3478
3479 # or if the prime id type is missing or invalid
3480 return if !$args{logtype};
3481 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3482 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
3483 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
3484
3485 # Sorting defaults
3486 $args{sortby} = 'stamp' if !$args{sortby};
3487 $args{sortorder} = 'DESC' if !$args{sortorder};
3488 $args{offset} = 0 if !$args{offset};
3489
3490 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
3491 $args{sortby} = $sortmap{$args{sortby}};
3492
3493 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
3494 "date_trunc('second',stamp) AS logtime ".
3495 "FROM log ".
3496 "WHERE $id_col{$args{logtype}}=?".
3497 ($args{filter} ? " AND entry ~* ?" : '').
3498 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
3499 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
3500 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
3501 $errstr = $dbh->errstr if !$loglist;
3502 return $loglist;
3503} # end getLogEntries()
3504
3505
3506## DNSDB::getTypelist()
3507# Get a list of record types for various UI dropdowns
3508# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
3509# Returns an arrayref to list of hashrefs perfect for HTML::Template
3510sub getTypelist {
3511 my $dbh = shift;
3512 my $recgroup = shift;
3513 my $type = shift || $reverse_typemap{A};
3514
3515 # also accepting $webvar{revrec}!
3516 $recgroup = 'f' if $recgroup eq 'n';
3517 $recgroup = 'r' if $recgroup eq 'y';
3518
3519 my $sql = "SELECT val,name FROM rectypes WHERE ";
3520 if ($recgroup eq 'r') {
3521 # reverse zone types
3522 $sql .= "stdflag=2 OR stdflag=3";
3523 } elsif ($recgroup eq 'l') {
3524 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
3525 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
3526 } else {
3527 # default; forward zone types. technically $type eq 'f' but not worth the error message.
3528 $sql .= "stdflag=1 OR stdflag=2";
3529 }
3530 $sql .= " ORDER BY listorder";
3531
3532 my $sth = $dbh->prepare($sql);
3533 $sth->execute;
3534 my @typelist;
3535 while (my ($rval,$rname) = $sth->fetchrow_array()) {
3536 my %row = ( recval => $rval, recname => $rname );
3537 $row{tselect} = 1 if $rval == $type;
3538 push @typelist, \%row;
3539 }
3540
3541 # Add SOA on lookups since it's not listed in other dropdowns.
3542 if ($recgroup eq 'l') {
3543 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
3544 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
3545 push @typelist, \%row;
3546 }
3547
3548 return \@typelist;
3549} # end getTypelist()
3550
3551
3552## DNSDB::parentID()
3553# Get ID of entity that is nearest parent to requested id
3554# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
3555# (domain/reverse zone or group), and optional default/live and forward/reverse flags
3556# Returns the ID or undef on failure
3557sub parentID {
3558 my $dbh = shift;
3559
3560 my %args = @_;
3561
3562 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
3563 $args{partype} = 'group' if !$args{partype};
3564 $args{partype} = 'domain' if $args{partype} eq 'revzone';
3565
3566 # clean up defrec and revrec. default to live record, forward zone
3567 $args{defrec} = 'n' if !$args{defrec};
3568 $args{revrec} = 'n' if !$args{revrec};
3569
3570 if ($par_type{$args{partype}} eq 'domain') {
3571 # only live records can have a domain/zone parent
3572 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
3573 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
3574 " FROM records WHERE record_id = ?",
3575 undef, ($args{id}) ) or return;
3576 return $result;
3577 } else {
3578 # snag some arguments that will either fall through or be overwritten to save some code duplication
3579 my $tmpid = $args{id};
3580 my $type = $args{type};
3581 if ($type eq 'record' && $args{defrec} eq 'n') {
3582 # Live records go through the records table first.
3583 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
3584 " FROM records WHERE record_id = ?",
3585 undef, ($args{id}) ) or return;
3586 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
3587 }
3588 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
3589 undef, ($tmpid) );
3590 return $result;
3591 }
3592# should be impossible to get here with even remotely sane arguments
3593 return;
3594} # end parentID()
3595
3596
3597## DNSDB::isParent()
3598# Returns true if $id1 is a parent of $id2, false otherwise
3599sub isParent {
3600 my $dbh = shift;
3601 my $id1 = shift;
3602 my $type1 = shift;
3603 my $id2 = shift;
3604 my $type2 = shift;
3605##todo: immediate, secondary, full (default)
3606
3607 # Return false on invalid types
3608 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
3609 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
3610
3611 # Return false on impossible relations
3612 return 0 if $type1 eq 'record'; # nothing may be a child of a record
3613 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
3614 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
3615 return 0 if $type1 eq 'user'; # nothing may be child of a user
3616 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
3617 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
3618
3619 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
3620 # case would be the UI creating a new <thing>, and so we don't have an ID for
3621 # <thing> to look up yet. in that case the UI should check the parent as well.
3622 return 0 if $id1 == 0; # nothing can have a parent id of 0
3623 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
3624
3625 # group 1 is the ultimate root parent
3626 return 1 if $type1 eq 'group' && $id1 == 1;
3627
3628 # groups are always (a) parent of themselves
3629 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
3630
3631 my $id = $id2;
3632 my $type = $type2;
3633 my $foundparent = 0;
3634
3635 # Records are the only entity with two possible parents. We need to split the parent checks on
3636 # domain/rdns.
3637 if ($type eq 'record') {
3638 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
3639 undef, ($id));
3640 # check immediate parent against request
3641 return 1 if $type1 eq 'domain' && $id1 == $dom;
3642 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
3643 # if request is group, check *both* parents. Only check if the parent is nonzero though.
3644 return 1 if $dom && isParent($dbh, $id1, $type1, $dom, 'domain');
3645 return 1 if $rdns && isParent($dbh, $id1, $type1, $rdns, 'revzone');
3646 # exit here since we've executed the loop below by proxy in the above recursive calls.
3647 return 0;
3648 }
3649
3650# almost the same loop as getParents() above
3651 my $limiter = 0;
3652 while (1) {
3653 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
3654 my $result = $dbh->selectrow_hashref($sql,
3655 undef, ($id) );
3656 if (!$result) {
3657 $limiter++;
3658##fixme: how often will this happen on a live site? fail at max limiter <n>?
3659 warn "no results looking for $sql with id $id (depth $limiter)\n";
3660 last;
3661 }
3662 if ($result && $result->{$par_col{$type}} == $id1) {
3663 $foundparent = 1;
3664 last;
3665 } else {
3666##fixme: do we care about trying to return a "no such record/domain/user/group" error?
3667# should be impossible to create an inconsistent DB just with API calls.
3668 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
3669 }
3670 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
3671 last if $result->{$par_col{$type}} == 1;
3672 $id = $result->{$par_col{$type}};
3673 $type = $par_type{$type};
3674 }
3675
3676 return $foundparent;
3677} # end isParent()
3678
3679
3680## DNSDB::zoneStatus()
3681# Returns and optionally sets a zone's status
3682# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
3683# Returns status, or undef on errors.
3684sub zoneStatus {
3685 my $dbh = shift;
3686 my $id = shift;
3687 my $revrec = shift;
3688 my $newstatus = shift || 'mu';
3689
3690 return undef if $id !~ /^\d+$/;
3691
3692 # Allow transactions, and raise an exception on errors so we can catch it later.
3693 # Use local to make sure these get "reset" properly on exiting this block
3694 local $dbh->{AutoCommit} = 0;
3695 local $dbh->{RaiseError} = 1;
3696
3697 if ($newstatus ne 'mu') {
3698 # ooo, fun! let's see what we were passed for status
3699 eval {
3700 $newstatus = 0 if $newstatus eq 'domoff';
3701 $newstatus = 1 if $newstatus eq 'domon';
3702 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
3703 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
3704
3705##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
3706 $resultstr = "Changed ".($revrec eq 'n' ? domainName($dbh, $id) : revName($dbh, $id)).
3707 " state to ".($newstatus ? 'active' : 'inactive');
3708
3709 my %loghash;
3710 $loghash{domain_id} = $id if $revrec eq 'n';
3711 $loghash{rdns_id} = $id if $revrec eq 'y';
3712 $loghash{group_id} = parentID($dbh,
3713 (id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
3714 $loghash{entry} = $resultstr;
3715 _log($dbh, %loghash);
3716
3717 $dbh->commit;
3718 };
3719 if ($@) {
3720 my $msg = $@;
3721 eval { $dbh->rollback; };
3722 $resultstr = '';
3723 $errstr = $msg;
3724 return;
3725 }
3726 }
3727
3728 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
3729 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
3730 undef, ($id) );
3731 return $status;
3732} # end zoneStatus()
3733
3734
3735## DNSDB::importAXFR
3736# Import a domain via AXFR
3737# Takes AXFR host, domain to transfer, group to put the domain in,
3738# and optionally:
3739# - active/inactive state flag (defaults to active)
3740# - overwrite-SOA flag (defaults to off)
3741# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
3742# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
3743# if status is OK, but WARN includes conditions that are not fatal but should
3744# really be reported.
3745sub importAXFR {
3746 my $dbh = shift;
3747 my $ifrom_in = shift;
3748 my $zone = shift;
3749 my $group = shift;
3750 my $status = shift || 1;
3751 my $rwsoa = shift || 0;
3752 my $rwns = shift || 0;
3753 my $merge = shift || 0; # do we attempt to merge A/AAAA and PTR records whenever possible?
3754 # do we overload this with the fixme below?
3755##fixme: add mode to delete&replace, merge+overwrite, merge new?
3756
3757 my $nrecs = 0;
3758 my $soaflag = 0;
3759 my $nsflag = 0;
3760 my $warnmsg = '';
3761 my $ifrom;
3762
3763 my $rev = 'n';
3764 my $code = 'OK';
3765 my $msg = 'foobar?';
3766
3767 # choke on possible bad setting in ifrom
3768 # IPv4 and v6, and valid hostnames!
3769 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
3770 return ('FAIL', "Bad AXFR source host $ifrom")
3771 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
3772
3773 my $errmsg;
3774
3775 my $zone_id;
3776 my $domain_id = 0;
3777 my $rdns_id = 0;
3778 my $cidr;
3779
3780# magic happens! detect if we're importing a domain or a reverse zone
3781# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
3782# or what the formal .arpa zone is (if we got a CIDR netblock)
3783# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
3784
3785 if ($zone =~ m{(?:\.arpa\.?|/\d+)$}) {
3786 # we seem to have a reverse zone
3787 $rev = 'y';
3788
3789 if ($zone =~ /\.arpa\.?$/) {
3790 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
3791 ($code,$msg) = _zone2cidr($zone);
3792 return ($code, $msg) if $code eq 'FAIL';
3793 $cidr = $msg;
3794 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
3795 # v4 revzone, CIDR netblock
3796 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
3797 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
3798 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
3799 # v6 revzone, CIDR netblock
3800 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
3801 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
3802 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
3803 } else {
3804 # there is. no. else!
3805 return ('FAIL', "Unknown zone name format");
3806 }
3807
3808 # quick check to start to see if we've already got one
3809
3810 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
3811 undef, ("$cidr"));
3812 $rdns_id = $zone_id;
3813 } else {
3814 # default to domain
3815 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?",
3816 undef, ($zone));
3817 $domain_id = $zone_id;
3818 }
3819
3820 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
3821
3822 # little local utility sub to swap $val and $host for revzone records.
3823 sub _revswap {
3824 my $rechost = shift;
3825 my $recdata = shift;
3826
3827 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
3828 $rechost =~ s/\.in-addr\.arpa\.?$//;
3829 $rechost = join '.', reverse split /\./, $rechost;
3830 } else {
3831 $rechost =~ s/\.ip6\.arpa\.?$//;
3832 my @nibs = reverse split /\./, $rechost;
3833 $rechost = '';
3834 my $nc;
3835 foreach (@nibs) {
3836 $rechost.= $_;
3837 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
3838 }
3839 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
3840##fixme: there's a case that ends up with a partial entry here:
3841# ip:add:re:ss::
3842# can't reproduce after letting it sit overnight after discovery. :(
3843#print "$rechost\n";
3844 # canonicalize with NetAddr::IP
3845 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
3846 }
3847 return ($recdata,$rechost)
3848 }
3849
3850
3851 # Allow transactions, and raise an exception on errors so we can catch it later.
3852 # Use local to make sure these get "reset" properly on exiting this block
3853 local $dbh->{AutoCommit} = 0;
3854 local $dbh->{RaiseError} = 1;
3855
3856 my $sth;
3857 eval {
3858
3859 if ($rev eq 'n') {
3860##fixme: serial
3861 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($zone,$group,$status) );
3862 # get domain id so we can do the records
3863 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
3864 $domain_id = $zone_id;
3865 _log($dbh, (group_id => $group, domain_id => $domain_id,
3866 entry => "[Added ".($status ? 'active' : 'inactive')." domain $zone via AXFR]") );
3867 } else {
3868##fixme: serial
3869 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($cidr,$group,$status) );
3870 # get revzone id so we can do the records
3871 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
3872 $rdns_id = $zone_id;
3873 _log($dbh, (group_id => $group, rdns_id => $rdns_id,
3874 entry => "[Added ".($status ? 'active' : 'inactive')." reverse zone $cidr via AXFR]") );
3875 }
3876
3877## bizarre DBI<->Net::DNS interaction bug:
3878## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
3879## fixed, apparently I was doing *something* odd, but not certain what it was that
3880## caused a commit instead of barfing
3881
3882 my $res = Net::DNS::Resolver->new;
3883 $res->nameservers($ifrom);
3884 $res->axfr_start($zone)
3885 or die "Couldn't begin AXFR\n";
3886
3887 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
3888 " VALUES (?,?,?,?,?,?,?,?,?)");
3889
3890 # Stash info about sub-octet v4 revzones here so we don't have
3891 # to store the CNAMEs used to delegate a suboctet zone
3892 # $suboct{zone}{ns}[] -> array of nameservers
3893 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
3894## commented pending actual use of this data. for now, we'll just
3895## auto-(re)create the CNAMEs in revzones on export
3896# my %suboct;
3897
3898 while (my $rr = $res->axfr_next()) {
3899
3900 my $val;
3901 my $distance = 0;
3902 my $weight = 0;
3903 my $port = 0;
3904 my $logfrag = '';
3905
3906 my $type = $rr->type;
3907 my $host = $rr->name;
3908 my $ttl = $rr->ttl;
3909
3910 $soaflag = 1 if $type eq 'SOA';
3911 $nsflag = 1 if $type eq 'NS';
3912
3913# "Primary" types:
3914# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
3915# maybe KEY
3916
3917# BIND supports:
3918# [standard]
3919# A AAAA CNAME MX NS PTR SOA TXT
3920# [variously experimental, obsolete, or obscure]
3921# 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
3922# ... if one can ever find the right magic to format them correctly
3923
3924# Net::DNS supports:
3925# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
3926# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
3927# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
3928
3929# nasty big ugly case-like thing here, since we have to do *some* different
3930# processing depending on the record. le sigh.
3931
3932##fixme: what record types other than TXT can/will have >255-byte payloads?
3933
3934 if ($type eq 'A') {
3935 $val = $rr->address;
3936 } elsif ($type eq 'NS') {
3937# hmm. should we warn here if subdomain NS'es are left alone?
3938 next if ($rwns && ($rr->name eq $zone));
3939 if ($rev eq 'y') {
3940 # revzones have records more or less reversed from forward zones.
3941 my ($tmpcode,$tmpmsg) = _zone2cidr($host);
3942 die "Error converting NS record: $tmpmsg" if $tmpcode eq 'FAIL'; # hmm. may not make sense...
3943 $val = "$tmpmsg";
3944 $host = $rr->nsdname;
3945 $logfrag = "Added record '$val $type $host', TTL $ttl";
3946# Tag and preserve. For now this is commented for a no-op, but we have Ideas for
3947# another custom storage type ("DELEGATE") that will use these subzone-delegation records
3948#if ($val ne "$cidr") {
3949# push @{$suboct{$val}{ns}}, $host;
3950#}
3951 } else {
3952 $val = $rr->nsdname;
3953 }
3954 $nsflag = 1;
3955 } elsif ($type eq 'CNAME') {
3956 if ($rev eq 'y') {
3957 # hmm. do we even want to bother with storing these at this level? Sub-octet delegation
3958 # by CNAME is essentially a record-publication hack, and we want to just represent the
3959 # "true" logical intentions as far down the stack as we can from the UI.
3960 ($host,$val) = _revswap($host,$rr->cname);
3961 $logfrag = "Added record '$val $type $host', TTL $ttl";
3962# Tag and preserve in case we want to commit them as-is later, but mostly we don't care.
3963# Commented pending actually doing something with possibly new type DELEGATE
3964#my $tmprev = $host;
3965#$tmprev =~ s/^\d+\.//;
3966#($code,$tmprev) = _zone2cidr($tmprev);
3967#push @{$suboct{"$tmprev"}{cname}}, $val;
3968 # Silently skip CNAMEs in revzones.
3969 next;
3970 } else {
3971 $val = $rr->cname;
3972 }
3973 } elsif ($type eq 'SOA') {
3974 next if $rwsoa;
3975 $host = $rr->rname.":".$rr->mname;
3976 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
3977 $soaflag = 1;
3978 } elsif ($type eq 'PTR') {
3979 ($host,$val) = _revswap($host,$rr->ptrdname);
3980 $logfrag = "Added record '$val $type $host', TTL $ttl";
3981 # hmm. PTR records should not be in forward zones.
3982 } elsif ($type eq 'MX') {
3983 $val = $rr->exchange;
3984 $distance = $rr->preference;
3985 } elsif ($type eq 'TXT') {
3986##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
3987## but don't really seem enthusiastic about it.
3988#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
3989# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
3990# char_str_list returns a list of the individual string fragments in the record
3991# txtdata returns the more useful all-in-one form (since we want to push such protocol
3992# details as far down the stack as we can)
3993# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
3994 if ($rev eq 'y') {
3995 ($host,$val) = _revswap($host,$rr->txtdata);
3996 $logfrag = "Added record '$val $type $host', TTL $ttl";
3997 } else {
3998 $val = $rr->txtdata;
3999 }
4000 } elsif ($type eq 'SPF') {
4001##fixme: and the same caveat here, since it is apparently a clone of ::TXT
4002 $val = $rr->txtdata;
4003 } elsif ($type eq 'AAAA') {
4004 $val = $rr->address;
4005 } elsif ($type eq 'SRV') {
4006 $val = $rr->target;
4007 $distance = $rr->priority;
4008 $weight = $rr->weight;
4009 $port = $rr->port;
4010 } elsif ($type eq 'KEY') {
4011 # we don't actually know what to do with these...
4012 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
4013 } else {
4014 $val = $rr->rdatastr;
4015 # Finding a different record type is not fatal.... just problematic.
4016 # We may not be able to export it correctly.
4017 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
4018 }
4019
4020 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
4021
4022 if ($merge) {
4023 if ($rev eq 'n') {
4024 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
4025 my $etype;
4026 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
4027 "WHERE host=? AND val=? AND type=12",
4028 undef, ($host, $val) );
4029 if ($erid) {
4030 if ($type eq 'A') { # PTR -> A+PTR
4031 $etype = 65280;
4032 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
4033 }
4034 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
4035 $etype = 65281;
4036 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
4037 }
4038 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4039 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
4040 ($domain_id, $ettl, $etype, $erid));
4041 $nrecs++;
4042 _log($dbh, (group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry) );
4043 next; # while axfr_next
4044 }
4045 } # $rev eq 'n'
4046 else {
4047 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
4048 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
4049 "WHERE host=? AND val=? AND (type=1 OR type=28)",
4050 undef, ($host, $val) );
4051 if ($erid) {
4052 if ($etype == 1) { # A -> A+PTR
4053 $etype = 65280;
4054 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
4055 }
4056 if ($etype == 28) { # AAAA -> AAAA+PTR
4057 $etype = 65281;
4058 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
4059 }
4060 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4061 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
4062 ($rdns_id, $ettl, $etype, $erid));
4063 $nrecs++;
4064 _log($dbh, (group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry) );
4065 next; # while axfr_next
4066 }
4067 } # $rev eq 'y'
4068 } # if $merge
4069
4070 # Insert the new record
4071 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
4072 $distance, $weight, $port, $ttl);
4073
4074 $nrecs++;
4075
4076 if ($type eq 'SOA') {
4077 # also !$rwsoa, but if that's set, it should be impossible to get here.
4078 my @tmp1 = split /:/, $host;
4079 my @tmp2 = split /:/, $val;
4080 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
4081 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
4082 } elsif ($logfrag) {
4083 # special case for log entries we need to meddle with a little.
4084 $logentry .= $logfrag;
4085 } else {
4086 $logentry .= "Added record '$host $type";
4087 $logentry .= " [distance $distance]" if $type eq 'MX';
4088 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
4089 $logentry .= " $val', TTL $ttl";
4090 }
4091 _log($dbh, (group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry) );
4092
4093 } # while axfr_next
4094
4095# Detect and handle delegated subzones
4096# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
4097#foreach (keys %suboct) {
4098# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
4099# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
4100#}
4101
4102 # Overwrite SOA record
4103 if ($rwsoa) {
4104 $soaflag = 1;
4105 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4106 my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4107 $sthgetsoa->execute($group,$reverse_typemap{SOA});
4108 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
4109 $host =~ s/DOMAIN/$zone/g;
4110 $val =~ s/DOMAIN/$zone/g;
4111 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
4112 }
4113 }
4114
4115 # Overwrite NS records
4116 if ($rwns) {
4117 $nsflag = 1;
4118 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4119 my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4120 $sthgetns->execute($group,$reverse_typemap{NS});
4121 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
4122 $host =~ s/DOMAIN/$zone/g;
4123 $val =~ s/DOMAIN/$zone/g;
4124 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
4125 }
4126 }
4127
4128 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
4129 die "Bad zone: No SOA record!\n" if !$soaflag;
4130 die "Bad zone: No NS records!\n" if !$nsflag;
4131
4132 $dbh->commit;
4133
4134 };
4135
4136 if ($@) {
4137 my $msg = $@;
4138 eval { $dbh->rollback; };
4139 return ('FAIL',$msg." $warnmsg");
4140 } else {
4141 return ('WARN', $warnmsg) if $warnmsg;
4142 return ('OK',"Imported OK");
4143 }
4144
4145 # it should be impossible to get here.
4146 return ('WARN',"OOOK!");
4147} # end importAXFR()
4148
4149
4150## DNSDB::importBIND()
4151sub importBIND {
4152} # end importBIND()
4153
4154
4155## DNSDB::import_tinydns()
4156sub import_tinydns {
4157} # end import_tinydns()
4158
4159
4160## DNSDB::export()
4161# Export the DNS database, or a part of it
4162# Takes database handle, export type, optional arguments depending on type
4163# Writes zone data to targets as appropriate for type
4164sub export {
4165 my $dbh = shift;
4166 my $target = shift;
4167
4168 if ($target eq 'tiny') {
4169 __export_tiny($dbh,@_);
4170 }
4171# elsif ($target eq 'foo') {
4172# __export_foo($dbh,@_);
4173#}
4174# etc
4175
4176} # end export()
4177
4178
4179## DNSDB::__export_tiny
4180# Internal sub to implement tinyDNS (compatible) export
4181# Takes database handle, filehandle to write export to, optional argument(s)
4182# to determine which data gets exported
4183sub __export_tiny {
4184 my $dbh = shift;
4185 my $datafile = shift;
4186
4187##fixme: slurp up further options to specify particular zone(s) to export
4188
4189##fixme: fail if $datafile isn't an open, writable file
4190
4191 # easy case - export all evarything
4192 # not-so-easy case - export item(s) specified
4193 # todo: figure out what kind of list we use to export items
4194
4195# raw packet in unknown format: first byte indicates length
4196# of remaining data, allows up to 255 raw bytes
4197
4198 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
4199 my %recflags;
4200
4201 my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
4202 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id ".
4203 "FROM records WHERE domain_id=? AND NOT type=65283");
4204 $domsth->execute();
4205 while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
4206 $recsth->execute($domid);
4207 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid) = $recsth->fetchrow_array) {
4208 next if $recflags{$recid};
4209##fixme: need to store location in the db, and retrieve it here.
4210# temporarily hardcoded to empty so we can include it further down.
4211 my $loc = '';
4212
4213##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4214# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4215# timestamps are TAI64
4216# ~~ 2^62 + time()
4217 my $stamp = '';
4218
4219 _printrec_tiny($datafile,'n',\%recflags,$dom,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
4220 $recflags{$recid} = 1;
4221
4222 } # while ($recsth)
4223 } # while ($domsth)
4224
4225 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status FROM revzones WHERE status=1 ".
4226 "ORDER BY masklen(revnet) DESC");
4227# For reasons unknown, we can't sanely UNION these statements. Feh.
4228# Supposedly it should work though (note last 3 lines):
4229## PG manual
4230#UNION Clause
4231#
4232#The UNION clause has this general form:
4233#
4234# select_statement UNION [ ALL ] select_statement
4235#
4236#select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR UPDATE, or FOR SHARE clause. (ORDER BY
4237#and LIMIT can be attached to a subexpression if it is enclosed in parentheses. Without parentheses, these
4238#clauses will be taken to apply to the result of the UNION, not to its right-hand input expression.)
4239
4240 my $soasth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id ".
4241 "FROM records WHERE rdns_id=? AND type=6");
4242 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id ".
4243 "FROM records WHERE rdns_id=? AND not type=6 ".
4244 "ORDER BY masklen(CAST(val AS inet)) DESC, CAST(val AS inet)");
4245 $revsth->execute();
4246 while (my ($revid,$revzone,$revstat) = $revsth->fetchrow_array) {
4247 $soasth->execute($revid);
4248 my (@zsoa) = $soasth->fetchrow_array();
4249 _printrec_tiny($datafile,'y',\%recflags,$revzone,
4250 $zsoa[0],$zsoa[1],$zsoa[2],$zsoa[3],$zsoa[4],$zsoa[5],$zsoa[6],'','');
4251
4252 $recsth->execute($revid);
4253 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid) = $recsth->fetchrow_array) {
4254 next if $recflags{$recid};
4255##fixme: need to store location in the db, and retrieve it here.
4256# temporarily hardcoded to empty so we can include it further down.
4257 my $loc = '';
4258
4259##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4260# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4261# timestamps are TAI64
4262# ~~ 2^62 + time()
4263 my $stamp = '';
4264
4265 _printrec_tiny($datafile,'y',\%recflags,$revzone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
4266 $recflags{$recid} = 1;
4267
4268 } # while ($recsth)
4269 } # while ($domsth)
4270
4271} # end __export_tiny()
4272
4273
4274# Utility sub for __export_tiny above
4275sub _printrec_tiny {
4276 my ($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp) = @_;
4277
4278 ## Convert a bare number into an octal-coded pair of octets.
4279 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
4280 sub octalize {
4281 my $tmp = shift;
4282 my $srctype = shift || 'h'; # default assumes hex string
4283 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
4284 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
4285 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
4286 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
4287 }
4288
4289## WARNING: This works to export even the whole Internet's worth of IP space...
4290## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
4291## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
4292## 0/0 is estimated to take ~54 hours and ~256G of disk
4293## RAM usage depends on how many non-template entries you have in the set.
4294## This should probably be done on record addition rather than export; large blocks may need to be done in a
4295## forked process
4296 sub __publish_subnet {
4297 my $sub = shift;
4298 my $recflags = shift;
4299 my $hpat = shift;
4300 my $fh = shift;
4301 my $ttl = shift;
4302 my $stamp = shift;
4303 my $loc = shift;
4304 my $ptronly = shift || 0;
4305
4306 my $iplist = $sub->splitref(32);
4307 foreach (@$iplist) {
4308 my $ip = $_->addr;
4309 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
4310 next if $ip =~ /\.(0|255)$/;
4311 next if $$recflags{$ip};
4312 $$recflags{$ip}++;
4313 my $rec = $hpat; # start fresh with the template for each IP
4314 _template4_expand(\$rec, $ip);
4315 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
4316 ":$ttl:$stamp:$loc\n";
4317 }
4318 }
4319
4320##fixme? append . to all host/val hostnames
4321 if ($typemap{$type} eq 'SOA') {
4322
4323 # host contains pri-ns:responsible
4324 # val is abused to contain refresh:retry:expire:minttl
4325##fixme: "manual" serial vs tinydns-autoserial
4326 # let's be explicit about abusing $host and $val
4327 my ($email, $primary) = (split /:/, $host)[0,1];
4328 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
4329 if ($revrec eq 'y') {
4330##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
4331# what about v6?
4332# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
4333 $zone = NetAddr::IP->new($zone);
4334 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
4335 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
4336 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
4337 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
4338 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
4339 }
4340 return; # skips "default" bits just below
4341 }
4342 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
4343 }
4344 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
4345
4346 } elsif ($typemap{$type} eq 'A') {
4347
4348 print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
4349
4350 } elsif ($typemap{$type} eq 'NS') {
4351
4352 if ($revrec eq 'y') {
4353 $val = NetAddr::IP->new($val);
4354 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
4355 if (!$val->{isv6} && ($val->masklen < 24) && ($val->masklen % 8 != 0)) {
4356 foreach my $szone ($val->split($val->masklen + (8 - $val->masklen % 8))) {
4357 my $szone2 = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
4358 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
4359 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n";
4360 $$recflags{$szone2} = $val->masklen;
4361 }
4362 } elsif ($val->{isv6} && ($val->masklen < 64) && ($val->masklen % 4 !=0)) {
4363 foreach my $szone ($val->split($val->masklen + (4 - $val->masklen % 4))) {
4364 my $szone2 = _ZONE($szone, 'ZONE.ip6.arpa', 'r', '.');
4365 next if $$recflags{$szone2} && $$recflags{$szone2} > $val->masklen;
4366 print $datafile "\&$szone2"."::$host:$ttl:$stamp:$loc\n";
4367 $$recflags{$szone2} = $val->masklen;
4368 }
4369 } else {
4370 my $val2 = _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
4371 print $datafile "\&$val2"."::$host:$ttl:$stamp:$loc\n";
4372 $$recflags{$val2} = $val->masklen;
4373 }
4374 } else {
4375 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
4376 }
4377
4378 } elsif ($typemap{$type} eq 'AAAA') {
4379
4380 print $datafile ":$host:28:";
4381 my $altgrp = 0;
4382 my @altconv;
4383 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
4384 foreach (split /:/, $val) {
4385 if (/^$/) {
4386 # flag blank entry; this is a series of 0's of (currently) unknown length
4387 $altconv[$altgrp++] = 's';
4388 } else {
4389 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
4390 $altconv[$altgrp++] = octalize($_)
4391 }
4392 }
4393 foreach my $octet (@altconv) {
4394 # if not 's', output
4395 print $datafile $octet unless $octet =~ /^s$/;
4396 # if 's', output (9-array length)x literal '\000\000'
4397 print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
4398 }
4399 print $datafile ":$ttl:$stamp:$loc\n";
4400
4401 } elsif ($typemap{$type} eq 'MX') {
4402
4403 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
4404
4405 } elsif ($typemap{$type} eq 'TXT') {
4406
4407##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
4408 $val =~ s/:/\\072/g; # may need to replace other symbols
4409 print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
4410
4411# by-hand TXT
4412#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
4413#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
4414#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
4415
4416#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
4417#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
4418
4419# very long TXT record as brought in by axfr-get
4420# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
4421# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
4422#:longtxt.deepnet.cx:16:
4423#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
4424#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
4425#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
4426#:3600
4427
4428 } elsif ($typemap{$type} eq 'CNAME') {
4429
4430 print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
4431
4432 } elsif ($typemap{$type} eq 'SRV') {
4433
4434 # data is two-byte values for priority, weight, port, in that order,
4435 # followed by length/string data
4436
4437 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
4438
4439 $val .= '.' if $val !~ /\.$/;
4440 foreach (split /\./, $val) {
4441 printf $datafile "\\%0.3o%s", length($_), $_;
4442 }
4443 print $datafile "\\000:$ttl:$stamp:$loc\n";
4444
4445 } elsif ($typemap{$type} eq 'RP') {
4446
4447 # RP consists of two mostly free-form strings.
4448 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
4449 # The second is the "hostname" of a TXT record with more info.
4450 print $datafile ":$host:17:";
4451 my ($who,$what) = split /\s/, $val;
4452 foreach (split /\./, $who) {
4453 printf $datafile "\\%0.3o%s", length($_), $_;
4454 }
4455 print $datafile '\000';
4456 foreach (split /\./, $what) {
4457 printf $datafile "\\%0.3o%s", length($_), $_;
4458 }
4459 print $datafile "\\000:$ttl:$stamp:$loc\n";
4460
4461 } elsif ($typemap{$type} eq 'PTR') {
4462
4463 $zone = NetAddr::IP->new($zone);
4464 $$recflags{$val}++;
4465 if (!$zone->{isv6} && $zone->masklen > 24) {
4466 ($val) = ($val =~ /\.(\d+)$/);
4467 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
4468 ":$host:ttl:$stamp:$loc\n";
4469 } else {
4470 $val = NetAddr::IP->new($val);
4471 print $datafile "^".
4472 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
4473 ":$host:$ttl:$stamp:$loc\n";
4474 }
4475
4476 } elsif ($type == 65280) { # A+PTR
4477
4478 $$recflags{$val}++;
4479 print $datafile "=$host:$val:$ttl:$stamp:$loc\n";
4480
4481 } elsif ($type == 65281) { # AAAA+PTR
4482
4483#$$recflags{$val}++;
4484 # treat these as two separate records. since tinydns doesn't have
4485 # a native combined type, we have to create them separately anyway.
4486 if ($revrec eq 'n') {
4487 $type = 28;
4488 } else {
4489 $type = 12;
4490 }
4491 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
4492##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
4493# type 6 is for AAAA+PTR, type 3 is for AAAA
4494
4495 } elsif ($type == 65282) { # PTR template
4496
4497 # only useful for v4 with standard DNS software, since this expands all
4498 # IPs in $zone (or possibly $val?) with autogenerated records
4499 $val = NetAddr::IP->new($val);
4500 return if $val->{isv6};
4501
4502 if ($val->masklen <= 16) {
4503 foreach my $sub ($val->split(16)) {
4504 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
4505 }
4506 } else {
4507 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
4508 }
4509
4510 } elsif ($type == 65283) { # A+PTR template
4511
4512 $val = NetAddr::IP->new($val);
4513 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
4514 return if $val->{isv6};
4515
4516 if ($val->masklen <= 16) {
4517 foreach my $sub ($val->split(16)) {
4518 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
4519 }
4520 } else {
4521 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
4522 }
4523
4524 } elsif ($type == 65284) { # AAAA+PTR template
4525 # Stub for completeness. Could be exported to DNS software that supports
4526 # some degree of internal automagic in generic-record-creation
4527 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
4528
4529 } elsif ($type == 65285) { # Delegation
4530 # This is intended for reverse zones, but may prove useful in forward zones.
4531
4532 # All delegations need to create one or more NS records. The NS record handler knows what to do.
4533 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$reverse_typemap{'NS'},
4534 $val,$dist,$weight,$port,$ttl,$loc,$stamp);
4535 if ($revrec eq 'y') {
4536 # In the case of a sub-/24 v4 reverse delegation, we need to generate CNAMEs
4537 # to redirect all of the individual IP lookups as well.
4538 # Not sure how this would actually resolve if a /24 or larger was delegated
4539 # one way, and a sub-/24 in that >=/24 was delegated elsewhere...
4540 my $dblock = NetAddr::IP->new($val);
4541 if (!$dblock->{isv6} && $dblock->masklen > 24) {
4542 my @subs = $dblock->split;
4543 foreach (@subs) {
4544 next if $$recflags{"$_"};
4545 my ($oct) = ($_->addr =~ /(\d+)$/);
4546 print $datafile "C"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$oct.".
4547 _ZONE($dblock, 'ZONE.in-addr.arpa', 'r', '.').":$ttl:$stamp:$loc\n";
4548 $$recflags{"$_"}++;
4549 }
4550 }
4551 }
4552
4553 } else {
4554 # raw record. we don't know what's in here, so we ASS-U-ME the user has
4555 # put it in correctly, since either the user is messing directly with the
4556 # database, or the record was imported via AXFR
4557 # <split by char>
4558 # convert anything not a-zA-Z0-9.- to octal coding
4559
4560##fixme: add flag to export "unknown" record types - note we'll probably end up
4561# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
4562 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
4563
4564 } # record type if-else
4565
4566} # end _printrec_tiny()
4567
4568
4569## DNSDB::mailNotify()
4570# Sends notification mail to recipients regarding a DNSDB operation
4571sub mailNotify {
4572 my $dbh = shift;
4573 my ($subj,$message) = @_;
4574
4575 return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
4576
4577 my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
4578
4579 my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
4580
4581 $mailer->mail($mailsender);
4582 $mailer->to($config{mailnotify});
4583 $mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
4584 "To: <$config{mailnotify}>\n",
4585 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
4586 "Subject: $subj\n",
4587 "X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
4588 "Organization: $config{orgname}\n",
4589 "\n$message\n");
4590 $mailer->quit;
4591}
4592
4593# shut Perl up
45941;
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