source: trunk/DNSDB.pm@ 342

Last change on this file since 342 was 342, checked in by Kris Deugau, 13 years ago

/trunk

Add a new type to the custom record types ("Delegation") intended
to autocreate the appropriate records to delegate a subzone to
another server. Mainly useful for sub-/24 IPv4 reverse zones
where there's extra magic required to delegate small blocks.
Update listing priority for A+PTR template so that it's listed
when adding or updating a forward (domain) zone, since it's a
crossover type.
  • Property svn:keywords set to Date Rev Author Id
File size: 158.3 KB
Line 
1# dns/trunk/DNSDB.pm
2# Abstraction functions for DNS administration
3##
4# $Id: DNSDB.pm 342 2012-06-08 22:19:15Z kdeugau $
5# Copyright 2008-2012 Kris Deugau <kdeugau@deepnet.cx>
6#
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program. If not, see <http://www.gnu.org/licenses/>.
19##
20
21package DNSDB;
22
23use strict;
24use warnings;
25use Exporter;
26use DBI;
27use Net::DNS;
28use Crypt::PasswdMD5;
29use Net::SMTP;
30use NetAddr::IP qw(:lower);
31use POSIX;
32use 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 my @hostbits = split /\./, $hname;
300 my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE domain = ? GROUP BY domain_id");
301 foreach (@hostbits) {
302 $sth->execute($hname);
303 my ($found, $parid) = $sth->fetchrow_array;
304 if ($found) {
305 return $parid;
306 }
307 $hname =~ s/^$_\.//;
308 }
309} # end _hostparent()
310
311## DNSDB::_log()
312# Log an action
313# Takes a database handle and log entry hash containing at least:
314# group_id, log entry
315# and optionally one or more of:
316# domain_id, rdns_id
317# The %userdata hash provides the user ID, username, and fullname
318sub _log {
319 my $dbh = shift;
320
321 my %args = @_;
322
323 $args{rdns_id} = 0 if !$args{rdns_id};
324 $args{domain_id} = 0 if !$args{domain_id};
325
326##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
327# if ($config{log_channel} eq 'sql') {
328 $dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
329 undef,
330 ($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
331 $userdata{userid}, $userdata{username}, $userdata{fullname}) );
332# } elsif ($config{log_channel} eq 'file') {
333# } elsif ($config{log_channel} eq 'syslog') {
334# }
335} # end _log
336
337
338##
339## Record validation subs.
340##
341
342## All of these subs take substantially the same arguments:
343# a database handle
344# a hash containing at least the following keys:
345# - defrec (default/live flag)
346# - revrec (forward/reverse flag)
347# - id (parent entity ID)
348# - host (hostname)
349# - rectype
350# - val (IP, hostname [CNAME/MX/SRV] or text)
351# - addr (NetAddr::IP object from val. May be undef.)
352# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
353# host, rectype, and addr should be references as these may be modified in validation
354
355# A record
356sub _validate_1 {
357 my $dbh = shift;
358
359 my %args = @_;
360
361 return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
362
363 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
364 # or the intended parent domain for live records.
365 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
366 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
367
368 # Check IP is well-formed, and that it's a v4 address
369 # Fail on "compact" IPv4 variants, because they are not consistent and predictable.
370 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
371 unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
372 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
373 unless $args{addr} && !$args{addr}->{isv6};
374 # coerce IP/value to normalized form for storage
375 ${$args{val}} = $args{addr}->addr;
376
377 return ('OK','OK');
378} # done A record
379
380# NS record
381sub _validate_2 {
382 my $dbh = shift;
383
384 my %args = @_;
385
386 # Check that the target of the record is within the parent.
387 # Yes, host<->val are mixed up here; can't see a way to avoid it. :(
388 if ($args{defrec} eq 'n') {
389 # Check if IP/address/zone/"subzone" is within the parent
390 if ($args{revrec} eq 'y') {
391 my $tmpip = NetAddr::IP->new(${$args{val}});
392 my $pname = revName($dbh,$args{id});
393 return ('FAIL',"${$args{val}} not within $pname")
394 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$tmpip);
395 # Sub the returned thing for ZONE? This could get stupid if you have typos...
396 ${$args{val}} =~ s/ZONE/$tmpip->address/;
397 } else {
398 my $pname = domainName($dbh,$args{id});
399 ${$args{host}} = $pname if ${$args{host}} !~ /\.$pname$/;
400 }
401 } else {
402 # Default reverse NS records should always refer to the implied parent
403 ${$args{host}} = 'DOMAIN' if $args{revrec} eq 'n';
404 ${$args{val}} = 'ZONE' if $args{revrec} eq 'y';
405 }
406
407# Let this lie for now. Needs more magic.
408# # Check IP is well-formed, and that it's a v4 address
409# return ('FAIL',"A record must be a valid IPv4 address")
410# unless $addr && !$addr->{isv6};
411# # coerce IP/value to normalized form for storage
412# $$val = $addr->addr;
413
414 return ('OK','OK');
415} # done NS record
416
417# CNAME record
418sub _validate_5 {
419 my $dbh = shift;
420
421 my %args = @_;
422
423# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
424# This is fundamentally a messy operation and should really just be taken care of by the
425# export process, not manual maintenance of the necessary records.
426 return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
427
428 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
429 # or the intended parent domain for live records.
430 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
431 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
432
433 return ('OK','OK');
434} # done CNAME record
435
436# SOA record
437sub _validate_6 {
438 # Smart monkeys won't stick their fingers in here; we have
439 # separate dedicated routines to deal with SOA records.
440 return ('OK','OK');
441} # done SOA record
442
443# PTR record
444sub _validate_12 {
445 my $dbh = shift;
446
447 my %args = @_;
448
449 if ($args{revrec} eq 'y') {
450 if ($args{defrec} eq 'n') {
451 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
452 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
453 ${$args{val}} = $args{addr}->addr;
454 } else {
455 if (${$args{val}} =~ /\./) {
456 # looks like a v4 or fragment
457 if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
458 # woo! a complete IP! validate it and normalize, or fail.
459 $args{addr} = NetAddr::IP->new(${$args{val}})
460 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
461 ${$args{val}} = $args{addr}->addr;
462 } else {
463 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
464 }
465 } elsif (${$args{val}} =~ /[a-f:]/) {
466 # looks like a v6 or fragment
467 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
468 if ($args{addr}) {
469 if ($args{addr}->addr =~ /^0/) {
470 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
471 } else {
472 ${$args{val}} = $args{addr}->addr;
473 }
474 }
475 } else {
476 # bare number (probably). These could be v4 or v6, so we'll
477 # expand on these on creation of a reverse zone.
478 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
479 }
480 ${$args{host}} =~ s/\.*$/\.$config{domain}/ if ${$args{host}} !~ /(?:$config{domain}|ADMINDOMAIN)$/;
481 }
482
483# Multiple PTR records do NOT generally do what most people believe they do,
484# and tend to fail in the most awkward way possible. Check and warn.
485# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
486
487 my @checkvals = (${$args{val}});
488 if (${$args{val}} =~ /,/) {
489 # push . and :: variants into checkvals if val has ,
490 my $tmp;
491 ($tmp = ${$args{val}}) =~ s/,/./;
492 push @checkvals, $tmp;
493 ($tmp = ${$args{val}}) =~ s/,/::/;
494 push @checkvals, $tmp;
495 }
496 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
497 foreach my $checkme (@checkvals) {
498 if ($args{update}) {
499 # Record update. There should usually be an existing PTR (the record being updated)
500 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
501 " WHERE val = ?", undef, ($checkme)) };
502 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
503 if @ptrs && (!grep /^$args{update}$/, @ptrs);
504 } else {
505 # New record. Always warn if a PTR exists
506 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
507 " WHERE val = ?", undef, ($checkme));
508 return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
509 if $ptrcount;
510 }
511 }
512
513 } else {
514 # Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
515 # Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
516 # PTR records on export
517 return ('FAIL',"Forward zones cannot contain PTR records");
518 }
519
520 return ('OK','OK');
521} # done PTR record
522
523# MX record
524sub _validate_15 {
525 my $dbh = shift;
526
527 my %args = @_;
528
529# Not absolutely true but WTF use is an MX record for a reverse zone?
530 return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
531
532 return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
533 ${$args{dist}} =~ s/\s*//g;
534 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
535
536 ${$args{fields}} = "distance,";
537 push @{$args{vallist}}, ${$args{dist}};
538
539 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
540 # or the intended parent domain for live records.
541 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
542 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
543
544# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
545# if ($type == $reverse_typemap{NS} || $type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
546# if ($val =~ /^\s*[\da-f:.]+\s*$/) {
547# return ('FAIL',"$val is not a valid IP address") if !$addr;
548# }
549# }
550
551 return ('OK','OK');
552} # done MX record
553
554# TXT record
555sub _validate_16 {
556 # Could arguably put a WARN return here on very long (>512) records
557 return ('OK','OK');
558} # done TXT record
559
560# RP record
561sub _validate_17 {
562 # Probably have to validate these some day
563 return ('OK','OK');
564} # done RP record
565
566# AAAA record
567sub _validate_28 {
568 my $dbh = shift;
569
570 my %args = @_;
571
572 return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
573
574 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
575 # or the intended parent domain for live records.
576 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
577 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
578
579 # Check IP is well-formed, and that it's a v6 address
580 return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
581 unless $args{addr} && $args{addr}->{isv6};
582 # coerce IP/value to normalized form for storage
583 ${$args{val}} = $args{addr}->addr;
584
585 return ('OK','OK');
586} # done AAAA record
587
588# SRV record
589sub _validate_33 {
590 my $dbh = shift;
591
592 my %args = @_;
593
594# Not absolutely true but WTF use is an SRV record for a reverse zone?
595 return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
596
597 return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
598 ${$args{dist}} =~ s/\s*//g;
599 return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
600
601 return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
602 unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
603 return ('FAIL',"Port and weight are required for SRV records")
604 unless defined(${$args{weight}}) && defined(${$args{port}});
605 ${$args{weight}} =~ s/\s*//g;
606 ${$args{port}} =~ s/\s*//g;
607
608 return ('FAIL',"Port and weight are required, and must be numeric")
609 unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
610
611 ${$args{fields}} = "distance,weight,port,";
612 push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
613
614 # Coerce all hostnames to end in ".DOMAIN" for group/default records,
615 # or the intended parent domain for live records.
616 my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
617 ${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
618
619 return ('OK','OK');
620} # done SRV record
621
622# Now the custom types
623
624# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
625sub _validate_65280 {
626 my $dbh = shift;
627
628 my %args = @_;
629
630 my $code = 'OK';
631 my $msg = 'OK';
632
633 if ($args{defrec} eq 'n') {
634 # live record; revrec determines whether we validate the PTR or A component first.
635
636 if ($args{revrec} eq 'y') {
637 ($code,$msg) = _validate_12($dbh, %args);
638 return ($code,$msg) if $code eq 'FAIL';
639
640 # Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
641 if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
642 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
643 " as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
644 $msg .= "\n$addmsg" if $code eq 'WARN';
645 $msg = $addmsg if $code eq 'OK';
646 ${$args{rectype}} = $reverse_typemap{PTR};
647 return ('WARN', $msg);
648 }
649
650 # Add domain ID to field list and values
651 ${$args{fields}} .= "domain_id,";
652 push @{$args{vallist}}, ${$args{domid}};
653
654 } else {
655 ($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
656 ($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
657 return ($code,$msg) if $code eq 'FAIL';
658
659 # Check if the requested reverse zone exists - note, an IP fragment won't
660 # work here since we don't *know* which parent to put it in.
661 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
662 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
663 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
664 if (!$revid) {
665 $msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
666 " instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
667 ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
668 return ('WARN', $msg);
669 }
670
671 # Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
672 # by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
673 if ($args{update}) {
674 # Record update. There should usually be an existing PTR (the record being updated)
675 my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
676 " WHERE val = ?", undef, (${$args{val}})) };
677 if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
678 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
679 $code = 'WARN';
680 }
681 } else {
682 # New record. Always warn if a PTR exists
683 my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
684 " WHERE val = ?", undef, (${$args{val}}));
685 $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
686 if $ptrcount;
687 $code = 'WARN' if $ptrcount;
688 }
689
690# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
691# " WHERE val = ?", undef, ${$args{val}});
692# if ($ptrcount) {
693# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
694# " WHERE val = ?
695# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
696# $code = 'WARN';
697# }
698
699 ${$args{fields}} .= "rdns_id,";
700 push @{$args{vallist}}, $revid;
701 }
702
703 } else { # defrec eq 'y'
704 if ($args{revrec} eq 'y') {
705 ($code,$msg) = _validate_12($dbh, %args);
706 return ($code,$msg) if $code eq 'FAIL';
707 if (${$args{rectype}} == 65280) {
708 return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
709 if ${$args{val}} =~ /:/;
710 ${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
711 } elsif (${$args{rectype}} == 65281) {
712 return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
713 if ${$args{val}} =~ /\./;
714 ${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
715 }
716 } else {
717 # This is easy. I also can't see a real use-case for A/AAAA+PTR in *all* forward
718 # domains, since you wouldn't be able to substitute both domain and reverse zone
719 # sanely, and you'd end up with guaranteed over-replicated PTR records that would
720 # confuse the hell out of pretty much anything that uses them.
721##fixme: make this a config flag?
722 return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
723 }
724 }
725
726 return ($code, $msg);
727} # done A+PTR record
728
729# AAAA+PTR record
730# A+PTR above has been magicked to handle AAAA+PTR as well.
731sub _validate_65281 {
732 return _validate_65280(@_);
733} # done AAAA+PTR record
734
735# PTR template record
736sub _validate_65282 {
737 my $dbh = shift;
738
739 my %args = @_;
740
741 # we're *this* >.< close to being able to just call _validate_12... unfortunately we can't, quite.
742 if ($args{revrec} eq 'y') {
743 if ($args{defrec} eq 'n') {
744 return ('FAIL', "Template block ${$args{val}} is not within ".revName($dbh, $args{id}))
745 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
746##fixme: warn if $args{val} is not /31 or larger block?
747 ${$args{val}} = "$args{addr}";
748 } else {
749 if (${$args{val}} =~ /\./) {
750 # looks like a v4 or fragment
751 if (${$args{val}} =~ m|^\d+\.\d+\.\d+\.\d+(?:/\d+)?$|) {
752 # woo! a complete IP! validate it and normalize, or fail.
753 $args{addr} = NetAddr::IP->new(${$args{val}})
754 or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
755 ${$args{val}} = "$args{addr}";
756 } else {
757 ${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
758 }
759 } elsif (${$args{val}} =~ /[a-f:]/) {
760 # looks like a v6 or fragment
761 ${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
762 if ($args{addr}) {
763 if ($args{addr}->addr =~ /^0/) {
764 ${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
765 } else {
766 ${$args{val}} = "$args{addr}";
767 }
768 }
769 } else {
770 # bare number (probably). These could be v4 or v6, so we'll
771 # expand on these on creation of a reverse zone.
772 ${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
773 }
774 }
775##fixme: validate %-patterns?
776
777# Unlike single PTR records, there is absolutely no way to sanely support multiple
778# PTR templates for the same block, since they expect to expand to all the individual
779# IPs on export. Nested templates should be supported though.
780
781 my @checkvals = (${$args{val}});
782 if (${$args{val}} =~ /,/) {
783 # push . and :: variants into checkvals if val has ,
784 my $tmp;
785 ($tmp = ${$args{val}}) =~ s/,/./;
786 push @checkvals, $tmp;
787 ($tmp = ${$args{val}}) =~ s/,/::/;
788 push @checkvals, $tmp;
789 }
790##fixme: this feels wrong still - need to restrict template pseudorecords to One Of Each
791# Per Netblock such that they don't conflict on export
792 my $typeck;
793# type 65282 -> ptr template -> look for any of 65282, 65283, 65284
794 $typeck = 'type=65283 OR type=65284' if ${$args{rectype}} == 65282;
795# type 65283 -> a+ptr template -> v4 -> look for 65282 or 65283
796 $typeck = 'type=65283' if ${$args{rectype}} == 65282;
797# type 65284 -> aaaa+ptr template -> v6 -> look for 65282 or 65284
798 $typeck = 'type=65284' if ${$args{rectype}} == 65282;
799 my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ? ".
800 "AND (type=65282 OR $typeck)");
801 foreach my $checkme (@checkvals) {
802 $pcsth->execute($checkme);
803 my ($rc) = $pcsth->fetchrow_array;
804 return ('FAIL', "Only one template pseudorecord may exist for a given IP block") if $rc;
805 }
806
807 } else {
808 return ('FAIL', "Forward zones cannot contain PTR records");
809 }
810
811 return ('OK','OK');
812} # done PTR template record
813
814# A+PTR template record
815sub _validate_65283 {
816 my $dbh = shift;
817
818 my %args = @_;
819
820 my ($code,$msg) = ('OK','OK');
821
822##fixme: need to fiddle things since A+PTR templates are acceptable in live
823# forward zones but not default records
824 if ($args{defrec} eq 'n') {
825 if ($args{revrec} eq 'n') {
826 ($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
827 ($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
828 return ($code,$msg) if $code eq 'FAIL';
829
830 # Check if the requested reverse zone exists - note, an IP fragment won't
831 # work here since we don't *know* which parent to put it in.
832 # ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
833 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
834 " ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
835 # Fail if no match; we can't coerce a PTR-template type down to not include the PTR bit currently.
836 if (!$revid) {
837 $msg = "Can't ".($args{update} ? 'update' : 'add')." ${$args{host}}/${$args{val}} as ".
838 "$typemap{${$args{rectype}}}: reverse zone not found for ${$args{val}}";
839##fixme: add A template, AAAA template types?
840# ${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
841 return ('FAIL', $msg);
842 }
843
844 # Add reverse zone ID to field list and values
845 ${$args{fields}} .= "rdns_id,";
846 push @{$args{vallist}}, $revid;
847
848 } else {
849 return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
850 unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
851 ${$args{val}} = "$args{addr}";
852
853 if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
854 my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
855 " as PTR template instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
856 $msg .= "\n$addmsg" if $code eq 'WARN';
857 $msg = $addmsg if $code eq 'OK';
858 ${$args{rectype}} = 65282;
859 return ('WARN', $msg);
860 }
861
862 # Add domain ID to field list and values
863 ${$args{fields}} .= "domain_id,";
864 push @{$args{vallist}}, ${$args{domid}};
865 }
866
867 } else {
868 my ($code,$msg) = _validate_65282($dbh, %args);
869 return ($code, $msg) if $code eq 'FAIL';
870 # get domain, check against ${$args{name}}
871 }
872
873 # check domain, if nonexistent coerce down to PTR template
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
883sub _validate_65285 {
884 return ('OK','OK');
885}
886
887
888##
889## Record data substitution subs
890##
891
892# Replace ZONE in hostname, or create (most of) the actual proper zone name
893sub _ZONE {
894 my $zone = shift;
895 my $string = shift;
896 my $fr = shift || 'f'; # flag for forward/reverse order? nb: ignored for IP
897 my $sep = shift || '-'; # Separator character - unlikely we'll ever need more than . or -
898
899 my $prefix;
900
901 $string =~ s/,/./ if !$zone->{isv6};
902 $string =~ s/,/::/ if $zone->{isv6};
903
904 # Subbing ZONE in the host. We need to properly ID the netblock range
905 # The subbed text should have "network IP with trailing zeros stripped" for
906 # blocks lined up on octet (for v4) or hex-quad (for v6) boundaries
907 # For blocks that do NOT line up on these boundaries, we take the most
908 # significant octet or 16-bit chunk of the "broadcast" IP and append it
909 # after a double-dash
910 # ie:
911 # 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
912 # 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
913 # 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
914 # 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
915 # Similar for v6
916
917 if (!$zone->{isv6}) { # IPv4
918
919 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
920 # a funky subnet that had host bits set.
921 my $bc = $zone->broadcast->addr;
922
923 if ($zone->masklen > 24) {
924 $bc =~ s/^\d+\.\d+\.\d+\.//;
925 } elsif ($zone->masklen > 16) {
926 $prefix =~ s/\.0$//;
927 $bc =~ s/^\d+\.\d+\.//;
928 } elsif ($zone->masklen > 8) {
929 $bc =~ s/^\d+\.//;
930 $prefix =~ s/\.0\.0$//;
931 } else {
932 $prefix =~ s/\.0\.0\.0$//;
933 }
934 if ($zone->masklen % 8) {
935 $bc =~ s/(\.255)+$//;
936 $prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
937 }
938 if ($fr eq 'f') {
939 $prefix =~ s/\.+/$sep/g;
940 } else {
941 $prefix = join($sep, reverse(split(/\./, $prefix)));
942 }
943
944 } else { # IPv6
945
946 if ($fr eq 'f') {
947
948 $prefix = $zone->network->addr; # Just In Case someone managed to slip in
949 # a funky subnet that had host bits set.
950 my $bc = $zone->broadcast->addr;
951 if (($zone->masklen % 16) != 0) {
952 # Strip trailing :0 off $prefix, and :ffff off the broadcast IP
953 for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
954 $prefix =~ s/:0$//;
955 $bc =~ s/:ffff$//;
956 }
957 # Strip the leading 16-bit chunks off the front of the broadcast IP
958 $bc =~ s/^([a-f0-9]+:)+//;
959 # Append the remaining 16-bit chunk to the prefix after "--"
960 $prefix .= "--$bc";
961 } else {
962 # Strip off :0 from the end until we reach the netblock length.
963 for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
964 $prefix =~ s/:0$//;
965 }
966 }
967 # Actually deal with the separator
968 $prefix =~ s/:/$sep/g;
969
970 } else { # $fr eq 'f'
971
972 $prefix = $zone->network->full; # Just In Case someone managed to slip in
973 # a funky subnet that had host bits set.
974 my $bc = $zone->broadcast->full;
975 $prefix =~ s/://g; # clean these out since they're not spaced right for this case
976 $bc =~ s/://g;
977 # Strip trailing 0 off $prefix, and f off the broadcast IP, to match the mask length
978 for (my $i=0; $i<(31-int($zone->masklen / 4)); $i++) {
979 $prefix =~ s/0$//;
980 $bc =~ s/f$//;
981 }
982 # Split and reverse the order of the nibbles in the network/broadcast IPs
983 # trim another 0 for nibble-aligned blocks first, but only if we really have a block, not an IP
984 $prefix =~ s/0$// if $zone->masklen % 4 == 0 && $zone->masklen != 128;
985 my @nbits = reverse split //, $prefix;
986 my @bbits = reverse split //, $bc;
987 # Handle the sub-nibble case. Eww. I feel dirty supporting this...
988 $nbits[0] = "$nbits[0]-$bbits[0]" if ($zone->masklen % 4) != 0;
989 # Glue it back together
990 $prefix = join($sep, @nbits);
991
992 } # $fr ne 'f'
993
994 } # $zone->{isv6}
995
996 # Do the substitution, finally
997 $string =~ s/ZONE/$prefix/;
998 $string =~ s/--/-/ if $sep ne '-'; # - as separator needs extra help for sub-octet v4 netblocks
999 return $string;
1000} # done _ZONE()
1001
1002# Not quite a substitution sub, but placed here as it's basically the inverse of above;
1003# given the .arpa zone name, return the CIDR netblock the zone is for.
1004# Supports v4 non-octet/non-classful netblocks as per the method outlined in the Grasshopper Book (2nd Ed p217-218)
1005# Does NOT support non-quad v6 netblocks via the same scheme; it shouldn't ever be necessary.
1006# Takes a nominal .arpa zone name, returns a success code and NetAddr::IP, or a fail code and message
1007sub _zone2cidr {
1008 my $zone = shift;
1009
1010 my $cidr;
1011 my $tmpcidr;
1012 my $warnmsg = '';
1013
1014 if ($zone =~ /\.in-addr\.arpa\.?$/) {
1015 # v4 revzone, formal zone name type
1016 my $tmpzone = $zone;
1017 $tmpzone =~ s/\.in-addr\.arpa\.?//;
1018 return ('FAIL', "Non-numerics in apparent IPv4 reverse zone name") if $tmpzone !~ /^(?:\d+-)?[\d\.]+$/;
1019
1020 # Snag the octet pieces
1021 my @octs = split /\./, $tmpzone;
1022
1023 # Map result of a range manipulation to a mask length change. Cheaper than finding the 2-root of $octets[0]+1.
1024 # Note we will not support /31 blocks, mostly due to issues telling "24-31" -> .24/29 apart from
1025 # "24-31" -> .24/31", with a litte bit of "/31 is icky".
1026 my %maskmap = ( 3 => 2, 7 => 3, 15 => 4, 31 => 5, 63 => 6, 127 => 7,
1027 30 => 2, 29 => 3, 28 => 4, 27 => 5, 26 => 6, 25 => 7
1028 );
1029
1030 # Handle "range" blocks, eg, 80-83.168.192.in-addr.arpa (192.168.80.0/22)
1031 # Need to take the size of the range to offset the basic octet-based mask length,
1032 # and make sure the first number in the range gets used as the network address for the block
1033 # Alternate form: The second number is actually the real netmask, not the end of the range.
1034 my $masklen = 0;
1035 if ($octs[0] =~ /^((\d+)-(\d+))$/) { # take the range...
1036 if (24 < $3 && $3 < 31) {
1037 # we have a real netmask
1038 $masklen = -$maskmap{$3};
1039 } else {
1040 # we have a range. NB: only real CIDR ranges are supported
1041 $masklen -= $maskmap{-(eval $1)}; # find the mask base...
1042 }
1043 $octs[0] = $2; # set the base octet of the range...
1044 }
1045 @octs = reverse @octs; # We can reverse the octet pieces now that we've extracted and munged any ranges
1046
1047# arguably we should only allow sub-octet range/mask in-addr.arpa
1048# specifications in the least significant octet, but the code is
1049# simpler if we deal with sub-octet delegations at any level.
1050
1051 # Now we find the "true" mask with the aid of the "base" calculated above
1052 if ($#octs == 0) {
1053 $masklen += 8;
1054 $tmpcidr = "$octs[0].0.0.0/$masklen"; # really hope we don't see one of these very often.
1055 } elsif ($#octs == 1) {
1056 $masklen += 16;
1057 $tmpcidr = "$octs[0].$octs[1].0.0/$masklen";
1058 } elsif ($#octs == 2) {
1059 $masklen += 24;
1060 $tmpcidr = "$octs[0].$octs[1].$octs[2].0/$masklen";
1061 } else {
1062 $masklen += 32;
1063 $tmpcidr = "$octs[0].$octs[1].$octs[2].$octs[3]/$masklen";
1064 }
1065
1066 } elsif ($zone =~ /\.ip6\.arpa$/) {
1067 # v6 revzone, formal zone name type
1068 my $tmpzone = $zone;
1069 $tmpzone =~ s/\.ip6\.arpa\.?//;
1070##fixme: if-n-when we decide we can support sub-nibble v6 zone names, we'll need to change this segment
1071 return ('FAIL', "Non-hexadecimals in apparent IPv6 reverse zone name") if $tmpzone !~ /^[a-fA-F\d\.]+$/;
1072 my @quads = reverse(split(/\./, $tmpzone));
1073 $warnmsg .= "Apparent sub-/64 IPv6 reverse zone\n" if $#quads > 15;
1074 my $nc;
1075 foreach (@quads) {
1076 $tmpcidr .= $_;
1077 $tmpcidr .= ":" if ++$nc % 4 == 0;
1078 }
1079 my $nq = 1 if $nc % 4 != 0;
1080 my $mask = $nc * 4; # need to do this here because we probably increment it below
1081 while ($nc++ % 4 != 0) {
1082 $tmpcidr .= "0";
1083 }
1084 $tmpcidr .= ($nq ? '::' : ':')."/$mask";
1085 }
1086
1087 # Just to be sure, use NetAddr::IP to validate. Saves a lot of nasty regex watching for valid octet values.
1088 return ('FAIL', "Invalid zone $zone (apparent netblock $tmpcidr)")
1089 unless $cidr = NetAddr::IP->new($tmpcidr);
1090
1091 if ($warnmsg) {
1092 $errstr = $warnmsg;
1093 return ('WARN', $cidr);
1094 }
1095 return ('OK', $cidr);
1096} # done _zone2cidr()
1097
1098# Record template %-parameter expansion, IPv4. Note that IPv6 doesn't
1099# really have a sane way to handle this type of expansion at the moment
1100# due to the size of the address space.
1101# Takes a reference to a template string to be expanded, and an IP to use in the replacement.
1102sub _template4_expand {
1103 my $tmpl = shift;
1104 my $ip = shift;
1105
1106 my @ipparts = split /\./, $ip;
1107 my @iphex;
1108 my @ippad;
1109 for (@ipparts) {
1110 push @iphex, sprintf("%x", $_);
1111 push @ippad, sprintf("%u.3", $_);
1112 }
1113
1114 # IP substitutions in template records:
1115 #major patterns:
1116 #dashed IP, forward and reverse
1117 #dotted IP, forward and reverse (even if forward is... dumb)
1118 # -> %r for reverse, %i for forward, leading - or . to indicate separator, defaults to -
1119 # %r or %-r => %4d-%3d-%2d-%1d
1120 # %.r => %4d.%3d.%2d.%1d
1121 # %i or %-i => %1d-%2d-%3d-%4d
1122 # %.i => %1d.%2d.%3d.%4d
1123 $$tmpl =~ s/\%r/\%4d-\%3d-\%2d-\%1d/g;
1124 $$tmpl =~ s/\%([-.])r/\%4d$1\%3d$1\%2d$1\%1d/g;
1125 $$tmpl =~ s/\%i/\%1d-\%2d-\%3d-\%4d/g;
1126 $$tmpl =~ s/\%([-.])i/\%1d$1\%2d$1\%3d$1\%4d/g;
1127
1128 #hex-coded IP
1129 # %h
1130 $$tmpl =~ s/\%h/$iphex[0]$iphex[1]$iphex[2]$iphex[3]/g;
1131
1132 #IP as decimal-coded 32-bit value
1133 # %d
1134 my $iptmp = $ipparts[0]*256*256*256 + $ipparts[1]*256*256 + $ipparts[2]*256 + $ipparts[3];
1135 $$tmpl =~ s/\%d/$iptmp/g;
1136
1137 #minor patterns (per-octet)
1138 # %[1234][dh0]
1139 #octet
1140 #hex-coded octet
1141 #0-padded octet
1142 $$tmpl =~ s/\%([1234])d/$ipparts[$1-1]/g;
1143 $$tmpl =~ s/\%([1234])h/$iphex[$1-1]/g;
1144 $$tmpl =~ s/\%([1234])h/$ippad[$1-1]/g;
1145} # _template4_expand()
1146
1147
1148##
1149## Initialization and cleanup subs
1150##
1151
1152
1153## DNSDB::loadConfig()
1154# Load the minimum required initial state (DB connect info) from a config file
1155# Load misc other bits while we're at it.
1156# Takes an optional basename and config path to look for
1157# Populates the %config and %def hashes
1158sub loadConfig {
1159 my $basename = shift || ''; # this will work OK
1160##fixme $basename isn't doing what I think I thought I was trying to do.
1161
1162 my $deferr = ''; # place to put error from default config file in case we can't find either one
1163
1164 my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
1165 $configroot = '' if $basename =~ m|^/|;
1166 $basename .= ".conf" if $basename !~ /\.conf$/;
1167 my $defconfig = "$configroot/dnsdb.conf";
1168 my $siteconfig = "$configroot/$basename";
1169
1170 # System defaults
1171 __cfgload("$defconfig") or $deferr = $errstr;
1172
1173 # Per-site-ish settings.
1174 if ($basename ne '.conf') {
1175 unless (__cfgload("$siteconfig")) {
1176 $errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
1177 "Error opening site config file $siteconfig";
1178 return;
1179 }
1180 }
1181
1182 # Munge log_failures.
1183 if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
1184 # true/false, on/off, yes/no all valid.
1185 if ($config{log_failures} =~ /^(?:true|false|on|off|yes|no)$/) {
1186 if ($config{log_failures} =~ /(?:true|on|yes)/) {
1187 $config{log_failures} = 1;
1188 } else {
1189 $config{log_failures} = 0;
1190 }
1191 } else {
1192 $errstr = "Bad log_failures setting $config{log_failures}";
1193 $config{log_failures} = 1;
1194 # Bad setting shouldn't be fatal.
1195 # return 2;
1196 }
1197 }
1198
1199 # All good, clear the error and go home.
1200 $errstr = '';
1201 return 1;
1202} # end loadConfig()
1203
1204
1205## DNSDB::__cfgload()
1206# Private sub to parse a config file and load it into %config
1207# Takes a file handle on an open config file
1208sub __cfgload {
1209 $errstr = '';
1210 my $cfgfile = shift;
1211
1212 if (open CFG, "<$cfgfile") {
1213 while (<CFG>) {
1214 chomp;
1215 s/^\s*//;
1216 next if /^#/;
1217 next if /^$/;
1218# hmm. more complex bits in this file might require [heading] headers, maybe?
1219# $mode = $1 if /^\[(a-z)+]/;
1220 # DB connect info
1221 $config{dbname} = $1 if /^dbname\s*=\s*([a-z0-9_.-]+)/i;
1222 $config{dbuser} = $1 if /^dbuser\s*=\s*([a-z0-9_.-]+)/i;
1223 $config{dbpass} = $1 if /^dbpass\s*=\s*([a-z0-9_.-]+)/i;
1224 $config{dbhost} = $1 if /^dbhost\s*=\s*([a-z0-9_.-]+)/i;
1225 # SOA defaults
1226 $def{contact} = $1 if /^contact\s*=\s*([a-z0-9_.-]+)/i;
1227 $def{prins} = $1 if /^prins\s*=\s*([a-z0-9_.-]+)/i;
1228 $def{soattl} = $1 if /^soattl\s*=\s*(\d+)/i;
1229 $def{refresh} = $1 if /^refresh\s*=\s*(\d+)/i;
1230 $def{retry} = $1 if /^retry\s*=\s*(\d+)/i;
1231 $def{expire} = $1 if /^expire\s*=\s*(\d+)/i;
1232 $def{minttl} = $1 if /^minttl\s*=\s*(\d+)/i;
1233 $def{ttl} = $1 if /^ttl\s*=\s*(\d+)/i;
1234 # Mail settings
1235 $config{mailhost} = $1 if /^mailhost\s*=\s*([a-z0-9_.-]+)/i;
1236 $config{mailnotify} = $1 if /^mailnotify\s*=\s*([a-z0-9_.\@-]+)/i;
1237 $config{mailsender} = $1 if /^mailsender\s*=\s*([a-z0-9_.\@-]+)/i;
1238 $config{mailname} = $1 if /^mailname\s*=\s*([a-z0-9\s_.-]+)/i;
1239 $config{orgname} = $1 if /^orgname\s*=\s*([a-z0-9\s_.,'-]+)/i;
1240 $config{domain} = $1 if /^domain\s*=\s*([a-z0-9_.-]+)/i;
1241 # session - note this is fed directly to CGI::Session
1242 $config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s*=\s*(\d+[smhdwMy]?)/;
1243 $config{sessiondir} = $1 if m{^sessiondir\s*=\s*([a-z0-9/_.-]+)}i;
1244 # misc
1245 $config{log_failures} = $1 if /^log_failures\s*=\s*([a-z01]+)/i;
1246 $config{perpage} = $1 if /^perpage\s*=\s*(\d+)/i;
1247 }
1248 close CFG;
1249 } else {
1250 $errstr = $!;
1251 return;
1252 }
1253 return 1;
1254} # end __cfgload()
1255
1256
1257## DNSDB::connectDB()
1258# Creates connection to DNS database.
1259# Requires the database name, username, and password.
1260# Returns a handle to the db.
1261# Set up for a PostgreSQL db; could be any transactional DBMS with the
1262# right changes.
1263sub connectDB {
1264 $errstr = '';
1265 my $dbname = shift;
1266 my $user = shift;
1267 my $pass = shift;
1268 my $dbh;
1269 my $DSN = "DBI:Pg:dbname=$dbname";
1270
1271 my $host = shift;
1272 $DSN .= ";host=$host" if $host;
1273
1274# Note that we want to autocommit by default, and we will turn it off locally as necessary.
1275# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
1276 $dbh = DBI->connect($DSN, $user, $pass, {
1277 AutoCommit => 1,
1278 PrintError => 0
1279 })
1280 or return (undef, $DBI::errstr) if(!$dbh);
1281
1282##fixme: initialize the DB if we can't find the table (since, by definition, there's
1283# nothing there if we can't select from it...)
1284 my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
1285 my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
1286 return (undef,$DBI::errstr) if $dbh->err;
1287
1288#if ($tblcount == 0) {
1289# # create tables one at a time, checking for each.
1290# return (undef, "check table misc missing");
1291#}
1292
1293
1294# Return here if we can't select.
1295# This should retrieve the dbversion key.
1296 my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
1297 $sth->execute();
1298 return (undef,$DBI::errstr) if ($sth->err);
1299
1300##fixme: do stuff to the DB on version mismatch
1301# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
1302# DB should be downward-compatible; column defaults should give sane (if possibly
1303# useless-and-needs-help) values in columns an older software stack doesn't know about.
1304
1305# See if the select returned anything (or null data). This should
1306# succeed if the select executed, but...
1307 $sth->fetchrow();
1308 return (undef,$DBI::errstr) if ($sth->err);
1309
1310 $sth->finish;
1311
1312# If we get here, we should be OK.
1313 return ($dbh,"DB connection OK");
1314} # end connectDB
1315
1316
1317## DNSDB::finish()
1318# Cleans up after database handles and so on.
1319# Requires a database handle
1320sub finish {
1321 my $dbh = $_[0];
1322 $dbh->disconnect;
1323} # end finish
1324
1325
1326## DNSDB::initGlobals()
1327# Initialize global variables
1328# NB: this does NOT include web-specific session variables!
1329# Requires a database handle
1330sub initGlobals {
1331 my $dbh = shift;
1332
1333# load record types from database
1334 my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
1335 $sth->execute;
1336 while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
1337 $typemap{$recval} = $recname;
1338 $reverse_typemap{$recname} = $recval;
1339 # now we fill the record validation function hash
1340 if ($stdflag < 5) {
1341 my $fn = "_validate_$recval";
1342 $validators{$recval} = \&$fn;
1343 } else {
1344 my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
1345 $validators{$recval} = eval $fn;
1346 }
1347 }
1348} # end initGlobals
1349
1350
1351## DNSDB::login()
1352# Takes a database handle, username and password
1353# Returns a userdata hash (UID, GID, username, fullname parts) if username exists,
1354# password matches the one on file, and account is not disabled
1355# Returns undef otherwise
1356sub login {
1357 my $dbh = shift;
1358 my $user = shift;
1359 my $pass = shift;
1360
1361 my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname,status".
1362 " FROM users WHERE username=?",
1363 undef, ($user) );
1364 return if !$userinfo;
1365 return if !$userinfo->{status};
1366
1367 if ($userinfo->{password} =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
1368 # native passwords (crypt-md5)
1369 return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1370 } elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1371 # VegaDNS import (hex-coded MD5)
1372 return if $userinfo->{password} ne md5_hex($pass);
1373 } else {
1374 # plaintext (convenient now and then)
1375 return if $userinfo->{password} ne $pass;
1376 }
1377
1378 return $userinfo;
1379} # end login()
1380
1381
1382## DNSDB::initActionLog()
1383# Set up action logging. Takes a database handle and user ID
1384# Sets some internal globals and Does The Right Thing to set up a logging channel.
1385# This sets up _log() to spew out log entries to the defined channel without worrying
1386# about having to open a file or a syslog channel
1387##fixme Need to call _initActionLog_blah() for various logging channels, configured
1388# via dnsdb.conf, in $config{log_channel} or something
1389# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1390sub initActionLog {
1391 my $dbh = shift;
1392 my $uid = shift;
1393
1394 return if !$uid;
1395
1396 # snag user info for logging. there's got to be a way to not have to pass this back
1397 # and forth from a caller, but web usage means no persistence we can rely on from
1398 # the server side.
1399 my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname || ' ' || lastname".
1400 " FROM users WHERE user_id=?", undef, ($uid));
1401##fixme: errors are unpossible!
1402
1403 $userdata{username} = $username;
1404 $userdata{userid} = $uid;
1405 $userdata{fullname} = $fullname;
1406
1407 # convert to real check once we have other logging channels
1408 # if ($config{log_channel} eq 'sql') {
1409 # Open Log, Sez Me!
1410 # }
1411
1412} # end initActionLog
1413
1414
1415## DNSDB::initPermissions()
1416# Set up permissions global
1417# Takes database handle and UID
1418sub initPermissions {
1419 my $dbh = shift;
1420 my $uid = shift;
1421
1422# %permissions = $(getPermissions($dbh,'user',$uid));
1423 getPermissions($dbh, 'user', $uid, \%permissions);
1424
1425} # end initPermissions()
1426
1427
1428## DNSDB::getPermissions()
1429# Get permissions from DB
1430# Requires DB handle, group or user flag, ID, and hashref.
1431sub getPermissions {
1432 my $dbh = shift;
1433 my $type = shift;
1434 my $id = shift;
1435 my $hash = shift;
1436
1437 my $sql = qq(
1438 SELECT
1439 p.admin,p.self_edit,
1440 p.group_create,p.group_edit,p.group_delete,
1441 p.user_create,p.user_edit,p.user_delete,
1442 p.domain_create,p.domain_edit,p.domain_delete,
1443 p.record_create,p.record_edit,p.record_delete
1444 FROM permissions p
1445 );
1446 if ($type eq 'group') {
1447 $sql .= qq(
1448 JOIN groups g ON g.permission_id=p.permission_id
1449 WHERE g.group_id=?
1450 );
1451 } else {
1452 $sql .= qq(
1453 JOIN users u ON u.permission_id=p.permission_id
1454 WHERE u.user_id=?
1455 );
1456 }
1457
1458 my $sth = $dbh->prepare($sql);
1459
1460 $sth->execute($id) or die "argh: ".$sth->errstr;
1461
1462# my $permref = $sth->fetchrow_hashref;
1463# return $permref;
1464# $hash = $permref;
1465# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1466 ($hash->{admin},$hash->{self_edit},
1467 $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1468 $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1469 $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1470 $hash->{record_create},$hash->{record_edit},$hash->{record_delete})
1471 = $sth->fetchrow_array;
1472
1473} # end getPermissions()
1474
1475
1476## DNSDB::changePermissions()
1477# Update an ACL entry
1478# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1479sub changePermissions {
1480 my $dbh = shift;
1481 my $type = shift;
1482 my $id = shift;
1483 my $newperms = shift;
1484 my $inherit = shift || 0;
1485
1486 my $resultmsg = '';
1487
1488 # see if we're switching from inherited to custom. for bonus points,
1489 # snag the permid and parent permid anyway, since we'll need the permid
1490 # to set/alter custom perms, and both if we're switching from custom to
1491 # inherited.
1492 my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1493 ($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1494 " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1495 " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1496 " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1497 $sth->execute($id);
1498
1499 my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1500
1501# hack phtoui
1502# group id 1 is "special" in that it's it's own parent (err... possibly.)
1503# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1504 $wasinherited = 0 if ($type eq 'group' && $id == 1);
1505
1506 local $dbh->{AutoCommit} = 0;
1507 local $dbh->{RaiseError} = 1;
1508
1509 # Wrap all the SQL in a transaction
1510 eval {
1511 if ($inherit) {
1512
1513 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1514 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1515 $dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1516
1517 } else {
1518
1519 if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1520##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1521# ... if'n'when we have groups with fully inherited permissions.
1522 # SQL is coo
1523 $dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1524 "SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1525 ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1526 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1527 $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1528 "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1529 }
1530
1531 # and now set the permissions we were passed
1532 foreach (@permtypes) {
1533 if (defined ($newperms->{$_})) {
1534 $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1535 }
1536 }
1537
1538 } # (inherited->)? custom
1539
1540 if ($type eq 'user') {
1541 $resultmsg = "Updated permissions for user $name";
1542 } else {
1543 $resultmsg = "Updated default permissions for group $name";
1544 }
1545 _log($dbh, (group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg));
1546 $dbh->commit;
1547 }; # end eval
1548 if ($@) {
1549 my $msg = $@;
1550 eval { $dbh->rollback; };
1551 return ('FAIL',"Error changing permissions: $msg");
1552 }
1553
1554 return ('OK',$resultmsg);
1555} # end changePermissions()
1556
1557
1558## DNSDB::comparePermissions()
1559# Compare two permission hashes
1560# Returns '>', '<', '=', '!'
1561sub comparePermissions {
1562 my $p1 = shift;
1563 my $p2 = shift;
1564
1565 my $retval = '='; # assume equality until proven otherwise
1566
1567 no warnings "uninitialized";
1568
1569 foreach (@permtypes) {
1570 next if $p1->{$_} == $p2->{$_}; # equal is good
1571 if ($p1->{$_} && !$p2->{$_}) {
1572 if ($retval eq '<') { # if we've already found an unequal pair where
1573 $retval = '!'; # $p2 has more access, and we now find a pair
1574 last; # where $p1 has more access, the overall access
1575 } # is neither greater or lesser, it's unequal.
1576 $retval = '>';
1577 }
1578 if (!$p1->{$_} && $p2->{$_}) {
1579 if ($retval eq '>') { # if we've already found an unequal pair where
1580 $retval = '!'; # $p1 has more access, and we now find a pair
1581 last; # where $p2 has more access, the overall access
1582 } # is neither greater or lesser, it's unequal.
1583 $retval = '<';
1584 }
1585 }
1586 return $retval;
1587} # end comparePermissions()
1588
1589
1590## DNSDB::changeGroup()
1591# Change group ID of an entity
1592# Takes a database handle, entity type, entity ID, and new group ID
1593sub changeGroup {
1594 my $dbh = shift;
1595 my $type = shift;
1596 my $id = shift;
1597 my $newgrp = shift;
1598
1599##fixme: fail on not enough args
1600 #return ('FAIL', "Missing
1601
1602 return ('FAIL', "Can't change the group of a $type")
1603 unless grep /^$type$/, ('domain','revzone','user','group'); # could be extended for defrecs?
1604
1605 # Collect some names for logging and messages
1606 my $entname;
1607 if ($type eq 'domain') {
1608 $entname = domainName($dbh, $id);
1609 } elsif ($type eq 'revzone') {
1610 $entname = revName($dbh, $id);
1611 } elsif ($type eq 'user') {
1612 $entname = userFullName($dbh, $id, '%u');
1613 } elsif ($type eq 'group') {
1614 $entname = groupName($dbh, $id);
1615 }
1616
1617 my ($oldgid) = $dbh->selectrow_array("SELECT group_id FROM $par_tbl{$type} WHERE $id_col{$type}=?",
1618 undef, ($id));
1619 my $oldgname = groupName($dbh, $oldgid);
1620 my $newgname = groupName($dbh, $newgrp);
1621
1622 return ('FAIL', "Can't move things into a group that doesn't exist") if !$newgname;
1623
1624 return ('WARN', "Nothing to do, new group is the same as the old group") if $oldgid == $newgrp;
1625
1626 # Allow transactions, and raise an exception on errors so we can catch it later.
1627 # Use local to make sure these get "reset" properly on exiting this block
1628 local $dbh->{AutoCommit} = 0;
1629 local $dbh->{RaiseError} = 1;
1630
1631 eval {
1632 $dbh->do("UPDATE $par_tbl{$type} SET group_id=? WHERE $id_col{$type}=?", undef, ($newgrp, $id));
1633 # Log the change in both the old and new groups
1634 _log($dbh, (group_id => $oldgid, entry => "Moved $type $entname from $oldgname to $newgname"));
1635 _log($dbh, (group_id => $newgrp, entry => "Moved $type $entname from $oldgname to $newgname"));
1636 $dbh->commit;
1637 };
1638 if ($@) {
1639 my $msg = $@;
1640 eval { $dbh->rollback; };
1641 if ($config{log_failures}) {
1642 _log($dbh, (group_id => $oldgid, entry => "Error moving $type $entname to $newgname: $msg"));
1643 $dbh->commit; # since we enabled transactions earlier
1644 }
1645 return ('FAIL',"Error moving $type $entname to $newgname: $msg");
1646 }
1647
1648 return ('OK',"Moved $type $entname from $oldgname to $newgname");
1649} # end changeGroup()
1650
1651
1652##
1653## Processing subs
1654##
1655
1656## DNSDB::addDomain()
1657# Add a domain
1658# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1659# and user info hash (for logging).
1660# Returns a status code and message
1661sub addDomain {
1662 $errstr = '';
1663 my $dbh = shift;
1664 return ('FAIL',"Need database handle") if !$dbh;
1665 my $domain = shift;
1666 return ('FAIL',"Domain must not be blank") if !$domain;
1667 my $group = shift;
1668 return ('FAIL',"Need group") if !defined($group);
1669 my $state = shift;
1670 return ('FAIL',"Need domain status") if !defined($state);
1671
1672 $state = 1 if $state =~ /^active$/;
1673 $state = 1 if $state =~ /^on$/;
1674 $state = 0 if $state =~ /^inactive$/;
1675 $state = 0 if $state =~ /^off$/;
1676
1677 return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1678
1679 return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1680
1681 my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
1682 my $dom_id;
1683
1684# quick check to start to see if we've already got one
1685 $sth->execute($domain);
1686 ($dom_id) = $sth->fetchrow_array;
1687
1688 return ('FAIL', "Domain already exists") if $dom_id;
1689
1690 # Allow transactions, and raise an exception on errors so we can catch it later.
1691 # Use local to make sure these get "reset" properly on exiting this block
1692 local $dbh->{AutoCommit} = 0;
1693 local $dbh->{RaiseError} = 1;
1694
1695 # Wrap all the SQL in a transaction
1696 eval {
1697 # insert the domain...
1698 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
1699
1700 # get the ID...
1701 ($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
1702
1703 _log($dbh, (domain_id => $dom_id, group_id => $group,
1704 entry => "Added ".($state ? 'active' : 'inactive')." domain $domain"));
1705
1706 # ... and now we construct the standard records from the default set. NB: group should be variable.
1707 my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1708 my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
1709 " VALUES ($dom_id,?,?,?,?,?,?,?)");
1710 $sth->execute($group);
1711 while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
1712 $host =~ s/DOMAIN/$domain/g;
1713 $val =~ s/DOMAIN/$domain/g;
1714 $sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
1715 if ($typemap{$type} eq 'SOA') {
1716 my @tmp1 = split /:/, $host;
1717 my @tmp2 = split /:/, $val;
1718 _log($dbh, (domain_id => $dom_id, group_id => $group,
1719 entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1720 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1721 } else {
1722 my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1723 $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1724 $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1725 _log($dbh, (domain_id => $dom_id, group_id => $group,
1726 entry => $logentry." $val', TTL $ttl"));
1727 }
1728 }
1729
1730 # once we get here, we should have suceeded.
1731 $dbh->commit;
1732 }; # end eval
1733
1734 if ($@) {
1735 my $msg = $@;
1736 eval { $dbh->rollback; };
1737 _log($dbh, (group_id => $group, entry => "Failed adding domain $domain ($msg)"))
1738 if $config{log_failures};
1739 $dbh->commit; # since we enabled transactions earlier
1740 return ('FAIL',$msg);
1741 } else {
1742 return ('OK',$dom_id);
1743 }
1744} # end addDomain
1745
1746
1747## DNSDB::delZone()
1748# Delete a forward or reverse zone.
1749# Takes a database handle, zone ID, and forward/reverse flag.
1750# for now, just delete the records, then the domain.
1751# later we may want to archive it in some way instead (status code 2, for example?)
1752sub delZone {
1753 my $dbh = shift;
1754 my $zoneid = shift;
1755 my $revrec = shift;
1756
1757 # Allow transactions, and raise an exception on errors so we can catch it later.
1758 # Use local to make sure these get "reset" properly on exiting this block
1759 local $dbh->{AutoCommit} = 0;
1760 local $dbh->{RaiseError} = 1;
1761
1762 my $msg = '';
1763 my $failmsg = '';
1764 my $zone = ($revrec eq 'n' ? domainName($dbh, $zoneid) : revName($dbh, $zoneid));
1765
1766 # Set this up here since we may use if if $config{log_failures} is enabled
1767 my %loghash;
1768 $loghash{domain_id} = $zoneid if $revrec eq 'n';
1769 $loghash{rdns_id} = $zoneid if $revrec eq 'y';
1770 $loghash{group_id} = parentID($dbh,
1771 (id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
1772
1773 # Wrap all the SQL in a transaction
1774 eval {
1775 # Disentangle custom record types before removing the
1776 # ones that are only in the zone to be deleted
1777 if ($revrec eq 'n') {
1778 my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
1779 $failmsg = "Failure converting multizone types to single-zone";
1780 $sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
1781 $sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
1782 $sth->execute(65282, $zoneid, 65283);
1783 $sth->execute(65282, $zoneid, 65284);
1784 $failmsg = "Failure removing domain records";
1785 $dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
1786 $failmsg = "Failure removing domain";
1787 $dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
1788 } else {
1789 my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
1790 $failmsg = "Failure converting multizone types to single-zone";
1791 $sth->execute($reverse_typemap{A}, $zoneid, 65280);
1792 $sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
1793# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
1794# $sth->execute(65285?, $zoneid, 65283);
1795# $sth->execute(65285?, $zoneid, 65284);
1796 $failmsg = "Failure removing reverse records";
1797 $dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
1798 $failmsg = "Failure removing reverse zone";
1799 $dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
1800 }
1801
1802 $msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
1803 $loghash{entry} = $msg;
1804 _log($dbh, %loghash);
1805
1806 # once we get here, we should have suceeded.
1807 $dbh->commit;
1808 }; # end eval
1809
1810 if ($@) {
1811 $msg = $@;
1812 eval { $dbh->rollback; };
1813 $loghash{entry} = "Error deleting $zone: $msg ($failmsg)";
1814 if ($config{log_failures}) {
1815 _log($dbh, %loghash);
1816 $dbh->commit; # since we enabled transactions earlier
1817 }
1818 return ('FAIL', $loghash{entry});
1819 } else {
1820 return ('OK', $msg);
1821 }
1822
1823} # end delZone()
1824
1825
1826## DNSDB::domainName()
1827# Return the domain name based on a domain ID
1828# Takes a database handle and the domain ID
1829# Returns the domain name or undef on failure
1830sub domainName {
1831 $errstr = '';
1832 my $dbh = shift;
1833 my $domid = shift;
1834 my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
1835 $errstr = $DBI::errstr if !$domname;
1836 return $domname if $domname;
1837} # end domainName()
1838
1839
1840## DNSDB::revName()
1841# Return the reverse zone name based on an rDNS ID
1842# Takes a database handle and the rDNS ID
1843# Returns the reverse zone name or undef on failure
1844sub revName {
1845 $errstr = '';
1846 my $dbh = shift;
1847 my $revid = shift;
1848 my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
1849 $errstr = $DBI::errstr if !$revname;
1850 return $revname if $revname;
1851} # end revName()
1852
1853
1854## DNSDB::domainID()
1855# Takes a database handle and domain name
1856# Returns the domain ID number
1857sub domainID {
1858 $errstr = '';
1859 my $dbh = shift;
1860 my $domain = shift;
1861 my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
1862 $errstr = $DBI::errstr if !$domid;
1863 return $domid if $domid;
1864} # end domainID()
1865
1866
1867## DNSDB::revID()
1868# Takes a database handle and reverse zone name
1869# Returns the rDNS ID number
1870sub revID {
1871 $errstr = '';
1872 my $dbh = shift;
1873 my $revzone = shift;
1874 my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
1875 $errstr = $DBI::errstr if !$revid;
1876 return $revid if $revid;
1877} # end revID()
1878
1879
1880## DNSDB::addRDNS
1881# Adds a reverse DNS zone
1882# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
1883# and boolean(ish) state (active/inactive)
1884# Returns a status code and message
1885sub addRDNS {
1886 my $dbh = shift;
1887 my $zone = NetAddr::IP->new(shift);
1888 return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
1889 my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
1890 my $group = shift;
1891 my $state = shift;
1892
1893 $state = 1 if $state =~ /^active$/;
1894 $state = 1 if $state =~ /^on$/;
1895 $state = 0 if $state =~ /^inactive$/;
1896 $state = 0 if $state =~ /^off$/;
1897
1898 return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
1899
1900# quick check to start to see if we've already got one
1901 my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ("$zone"));
1902
1903 return ('FAIL', "Zone already exists") if $rdns_id;
1904
1905 # Allow transactions, and raise an exception on errors so we can catch it later.
1906 # Use local to make sure these get "reset" properly on exiting this block
1907 local $dbh->{AutoCommit} = 0;
1908 local $dbh->{RaiseError} = 1;
1909
1910 my $warnstr = '';
1911 my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
1912 # wrong, we should have a value to override this anyway.
1913
1914 # Wrap all the SQL in a transaction
1915 eval {
1916 # insert the domain...
1917 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($zone, $group, $state));
1918
1919 # get the ID...
1920 ($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
1921
1922 _log($dbh, (rdns_id => $rdns_id, group_id => $group,
1923 entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone"));
1924
1925 # ... and now we construct the standard records from the default set. NB: group should be variable.
1926 my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
1927 my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl)".
1928 " VALUES ($rdns_id,?,?,?,?,?)");
1929 $sth->execute($group);
1930 while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
1931 # Silently skip v4/v6 mismatches. This is not an error, this is expected.
1932 if ($zone->{isv6}) {
1933 next if ($type == 65280 || $type == 65283);
1934 } else {
1935 next if ($type == 65281 || $type == 65284);
1936 }
1937
1938 $host =~ s/ADMINDOMAIN/$config{domain}/g;
1939
1940 # Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
1941 # On failure, tack a note on to a warning string and continue without adding this record.
1942 # While we're at it, we substitute $zone for ZONE in the value.
1943 if ($val eq 'ZONE') {
1944 next if $revpatt; # If we've got a pattern, we skip the default record version.
1945##fixme? do we care if we have multiple whole-zone templates?
1946 $val = $zone->network;
1947 } elsif ($val =~ /ZONE/) {
1948 my $tmpval = $val;
1949 $tmpval =~ s/ZONE//;
1950 # Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
1951 # as either v4 or v6. May make this an off-by-default config flag
1952 # Note that the origin records that may trigger this **SHOULD** already have ZONE,\d
1953 if ($type == 12 || $type == 65282) {
1954 $tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
1955 $tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,|::)\d+$/ && !$zone->{isv6});
1956 }
1957 my $addr;
1958 if (_ipparent($dbh, 'n', 'y', \$tmpval, $rdns_id, \$addr)) {
1959 $val = $addr->addr;
1960 } else {
1961 $warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
1962 next;
1963 }
1964 }
1965
1966 # Substitute $zone for ZONE in the hostname, but only for non-NS records.
1967 # NS records get this substitution on the value instead.
1968 $host = _ZONE($zone, $host) if $type != 2;
1969
1970 # Fill in the forward domain ID if we can find it, otherwise:
1971 # Coerce type down to PTR or PTR template if we can't
1972 my $domid = 0;
1973 if ($type >= 65280) {
1974 if (!($domid = _hostparent($dbh, $host))) {
1975 $warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
1976 $type = $reverse_typemap{PTR};
1977 $domid = 0; # just to be explicit.
1978 }
1979 }
1980
1981 $sth_in->execute($domid,$host,$type,$val,$ttl);
1982
1983 if ($typemap{$type} eq 'SOA') {
1984 my @tmp1 = split /:/, $host;
1985 my @tmp2 = split /:/, $val;
1986 _log($dbh, (rdns_id => $rdns_id, group_id => $group,
1987 entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1988 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1989 $defttl = $tmp2[3];
1990 } else {
1991 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
1992 _log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
1993 entry => $logentry." $val', TTL $ttl"));
1994 }
1995 }
1996
1997 # Generate record based on provided pattern.
1998 if ($revpatt) {
1999 my $host;
2000 my $type = ($zone->{isv6} ? 65284 : 65283);
2001 my $val = $zone->network;
2002
2003 # Substitute $zone for ZONE in the hostname.
2004 $host = _ZONE($zone, $revpatt);
2005
2006 my $domid = 0;
2007 if (!($domid = _hostparent($dbh, $host))) {
2008 $warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
2009 $type = 65282;
2010 $domid = 0; # just to be explicit.
2011 }
2012
2013 $sth_in->execute($domid,$host,$type,$val,$defttl);
2014 my $logentry = "[new $zone] Added record '$host $typemap{$type}";
2015 _log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
2016 entry => $logentry." $val', TTL $defttl from pattern"));
2017 }
2018
2019 # If there are warnings (presumably about default records skipped for cause) log them
2020 _log($dbh, (rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr"))
2021 if $warnstr;
2022
2023 # once we get here, we should have suceeded.
2024 $dbh->commit;
2025 }; # end eval
2026
2027 if ($@) {
2028 my $msg = $@;
2029 eval { $dbh->rollback; };
2030 _log($dbh, (group_id => $group, entry => "Failed adding reverse zone $zone ($msg)"))
2031 if $config{log_failures};
2032 $dbh->commit; # since we enabled transactions earlier
2033 return ('FAIL',$msg);
2034 } else {
2035 my $retcode = 'OK';
2036 if ($warnstr) {
2037 $resultstr = $warnstr;
2038 $retcode = 'WARN';
2039 }
2040 return ($retcode, $rdns_id);
2041 }
2042
2043} # end addRDNS()
2044
2045
2046## DNSDB::getZoneCount
2047# Get count of zones in group or groups
2048# Takes a database handle and hash containing:
2049# - the "current" group
2050# - an array of "acceptable" groups
2051# - a flag for forward/reverse zones
2052# - Optionally accept a "starts with" and/or "contains" filter argument
2053# Returns an integer count of the resulting zone list.
2054sub getZoneCount {
2055 my $dbh = shift;
2056
2057 my %args = @_;
2058
2059 my @filterargs;
2060 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2061 push @filterargs, "^$args{startwith}" if $args{startwith};
2062 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2063 push @filterargs, $args{filter} if $args{filter};
2064
2065 my $sql;
2066 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2067 if ($args{revrec} eq 'n') {
2068 $sql = "SELECT count(*) FROM domains".
2069 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2070 ($args{startwith} ? " AND domain ~* ?" : '').
2071 ($args{filter} ? " AND domain ~* ?" : '');
2072 } else {
2073 $sql = "SELECT count(*) FROM revzones".
2074 " WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2075 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2076 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2077 }
2078 my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
2079 return $count;
2080} # end getZoneCount()
2081
2082
2083## DNSDB::getZoneList()
2084# Get a list of zones in the specified group(s)
2085# Takes the same arguments as getZoneCount() above
2086# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
2087sub getZoneList {
2088 my $dbh = shift;
2089
2090 my %args = @_;
2091
2092 my @zonelist;
2093
2094 $args{sortorder} = 'ASC' if !grep /^$args{sortorder}$/, ('ASC','DESC');
2095 $args{offset} = 0 if !$args{offset} || $args{offset} !~ /^(?:all|\d+)$/;
2096
2097 my @filterargs;
2098 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2099 push @filterargs, "^$args{startwith}" if $args{startwith};
2100 $args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
2101 push @filterargs, $args{filter} if $args{filter};
2102
2103 my $sql;
2104 # Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
2105 if ($args{revrec} eq 'n') {
2106 $args{sortby} = 'domain' if !grep /^$args{sortby}$/, ('domain','group','status');
2107 $sql = "SELECT domain_id,domain,status,groups.group_name AS group FROM domains".
2108 " INNER JOIN groups ON domains.group_id=groups.group_id".
2109 " WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2110 ($args{startwith} ? " AND domain ~* ?" : '').
2111 ($args{filter} ? " AND domain ~* ?" : '');
2112 } else {
2113##fixme: arguably startwith here is irrelevant. depends on the UI though.
2114 $args{sortby} = 'revnet' if !grep /^$args{sortby}$/, ('revnet','group','status');
2115 $sql = "SELECT rdns_id,revnet,status,groups.group_name AS group FROM revzones".
2116 " INNER JOIN groups ON revzones.group_id=groups.group_id".
2117 " WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2118 ($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
2119 ($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
2120 }
2121 # A common tail.
2122 $sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
2123 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage}".
2124 " OFFSET ".$args{offset}*$config{perpage});
2125 my $sth = $dbh->prepare($sql);
2126 $sth->execute(@filterargs);
2127 my $rownum = 0;
2128
2129 while (my @data = $sth->fetchrow_array) {
2130 my %row;
2131 $row{domainid} = $data[0];
2132 $row{domain} = $data[1];
2133 $row{status} = $data[2];
2134 $row{group} = $data[3];
2135 push @zonelist, \%row;
2136 }
2137
2138 return \@zonelist;
2139} # end getZoneList()
2140
2141
2142## DNSDB::addGroup()
2143# Add a group
2144# Takes a database handle, group name, parent group, hashref for permissions,
2145# and optional template-vs-cloneme flag for the default records
2146# Returns a status code and message
2147sub addGroup {
2148 $errstr = '';
2149 my $dbh = shift;
2150 my $groupname = shift;
2151 my $pargroup = shift;
2152 my $permissions = shift;
2153
2154 # 0 indicates "custom", hardcoded.
2155 # Any other value clones that group's default records, if it exists.
2156 my $inherit = shift || 0;
2157##fixme: need a flag to indicate clone records or <?> ?
2158
2159 # Allow transactions, and raise an exception on errors so we can catch it later.
2160 # Use local to make sure these get "reset" properly on exiting this block
2161 local $dbh->{AutoCommit} = 0;
2162 local $dbh->{RaiseError} = 1;
2163
2164 my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
2165
2166 return ('FAIL', "Group already exists") if $group_id;
2167
2168 # Wrap all the SQL in a transaction
2169 eval {
2170 $dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
2171
2172 my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
2173
2174 # We work through the whole set of permissions instead of specifying them so
2175 # that when we add a new permission, we don't have to change the code anywhere
2176 # that doesn't explicitly deal with that specific permission.
2177 my @permvals;
2178 foreach (@permtypes) {
2179 if (!defined ($permissions->{$_})) {
2180 push @permvals, 0;
2181 } else {
2182 push @permvals, $permissions->{$_};
2183 }
2184 }
2185 $dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
2186 undef, ($groupid, @permvals) );
2187 my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
2188 $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
2189
2190 # Default records
2191 my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
2192 "VALUES ($groupid,?,?,?,?,?,?,?)");
2193 my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
2194 "VALUES ($groupid,?,?,?,?)");
2195 if ($inherit) {
2196 # Duplicate records from parent. Actually relying on inherited records feels
2197 # very fragile, and it would be problematic to roll over at a later time.
2198 my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
2199 $sth2->execute($pargroup);
2200 while (my @clonedata = $sth2->fetchrow_array) {
2201 $sthf->execute(@clonedata);
2202 }
2203 # And now the reverse records
2204 $sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
2205 $sth2->execute($pargroup);
2206 while (my @clonedata = $sth2->fetchrow_array) {
2207 $sthr->execute(@clonedata);
2208 }
2209 } else {
2210##fixme: Hardcoding is Bad, mmmmkaaaay?
2211 # reasonable basic defaults for SOA, MX, NS, and minimal hosting
2212 # could load from a config file, but somewhere along the line we need hardcoded bits.
2213 $sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
2214 $sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
2215 $sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
2216 $sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
2217 $sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
2218 $sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
2219 # reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
2220 $sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
2221 $sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
2222 }
2223
2224 _log($dbh, (group_id => $pargroup, entry => "Added group $groupname") );
2225
2226 # once we get here, we should have suceeded.
2227 $dbh->commit;
2228 }; # end eval
2229
2230 if ($@) {
2231 my $msg = $@;
2232 eval { $dbh->rollback; };
2233 if ($config{log_failures}) {
2234 _log($dbh, (group_id => $pargroup, entry => "Failed to add group $groupname: $msg") );
2235 $dbh->commit;
2236 }
2237 return ('FAIL',$msg);
2238 }
2239
2240 return ('OK','OK');
2241} # end addGroup()
2242
2243
2244## DNSDB::delGroup()
2245# Delete a group.
2246# Takes a group ID
2247# Returns a status code and message
2248sub delGroup {
2249 my $dbh = shift;
2250 my $groupid = shift;
2251
2252 # Allow transactions, and raise an exception on errors so we can catch it later.
2253 # Use local to make sure these get "reset" properly on exiting this block
2254 local $dbh->{AutoCommit} = 0;
2255 local $dbh->{RaiseError} = 1;
2256
2257##fixme: locate "knowable" error conditions and deal with them before the eval
2258# ... or inside, whatever.
2259# -> domains still exist in group
2260# -> ...
2261 my $failmsg = '';
2262 my $resultmsg = '';
2263
2264 # collect some pieces for logging and error messages
2265 my $groupname = groupName($dbh,$groupid);
2266 my $parid = parentID($dbh, (id => $groupid, type => 'group'));
2267
2268 # Wrap all the SQL in a transaction
2269 eval {
2270 # Check for Things in the group
2271 $failmsg = "Can't remove group $groupname";
2272 my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
2273 die "$grpcnt groups still in group\n" if $grpcnt;
2274 my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
2275 die "$domcnt domains still in group\n" if $domcnt;
2276 my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
2277 die "$usercnt users still in group\n" if $usercnt;
2278
2279 $failmsg = "Failed to delete default records for $groupname";
2280 $dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
2281 $failmsg = "Failed to delete default reverse records for $groupname";
2282 $dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
2283 $failmsg = "Failed to remove group $groupname";
2284 $dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
2285
2286 _log($dbh, (group_id => $parid, entry => "Deleted group $groupname"));
2287 $resultmsg = "Deleted group $groupname";
2288
2289 # once we get here, we should have suceeded.
2290 $dbh->commit;
2291 }; # end eval
2292
2293 if ($@) {
2294 my $msg = $@;
2295 eval { $dbh->rollback; };
2296 if ($config{log_failures}) {
2297 _log($dbh, (group_id => $parid, entry => "$failmsg: $msg"));
2298 $dbh->commit; # since we enabled transactions earlier
2299 }
2300 return ('FAIL',"$failmsg: $msg");
2301 }
2302
2303 return ('OK',$resultmsg);
2304} # end delGroup()
2305
2306
2307## DNSDB::getChildren()
2308# Get a list of all groups whose parent^n is group <n>
2309# Takes a database handle, group ID, reference to an array to put the group IDs in,
2310# and an optional flag to return only immediate children or all children-of-children
2311# default to returning all children
2312# Calls itself
2313sub getChildren {
2314 $errstr = '';
2315 my $dbh = shift;
2316 my $rootgroup = shift;
2317 my $groupdest = shift;
2318 my $immed = shift || 'all';
2319
2320 # special break for default group; otherwise we get stuck.
2321 if ($rootgroup == 1) {
2322 # by definition, group 1 is the Root Of All Groups
2323 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
2324 ($immed ne 'all' ? " AND parent_group_id=1" : '')." ORDER BY group_name");
2325 $sth->execute;
2326 while (my @this = $sth->fetchrow_array) {
2327 push @$groupdest, @this;
2328 }
2329 } else {
2330 my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=? ORDER BY group_name");
2331 $sth->execute($rootgroup);
2332 return if $sth->rows == 0;
2333 my @grouplist;
2334 while (my ($group) = $sth->fetchrow_array) {
2335 push @$groupdest, $group;
2336 getChildren($dbh,$group,$groupdest) if $immed eq 'all';
2337 }
2338 }
2339} # end getChildren()
2340
2341
2342## DNSDB::groupName()
2343# Return the group name based on a group ID
2344# Takes a database handle and the group ID
2345# Returns the group name or undef on failure
2346sub groupName {
2347 $errstr = '';
2348 my $dbh = shift;
2349 my $groupid = shift;
2350 my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
2351 $sth->execute($groupid);
2352 my ($groupname) = $sth->fetchrow_array();
2353 $errstr = $DBI::errstr if !$groupname;
2354 return $groupname if $groupname;
2355} # end groupName
2356
2357
2358## DNSDB::getGroupCount()
2359# Get count of subgroups in group or groups
2360# Takes a database handle and hash containing:
2361# - the "current" group
2362# - an array of "acceptable" groups
2363# - Optionally accept a "starts with" and/or "contains" filter argument
2364# Returns an integer count of the resulting group list.
2365sub getGroupCount {
2366 my $dbh = shift;
2367
2368 my %args = @_;
2369
2370 my @filterargs;
2371
2372 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2373 push @filterargs, "^$args{startwith}" if $args{startwith};
2374 push @filterargs, $args{filter} if $args{filter};
2375
2376 my $sql = "SELECT count(*) FROM groups ".
2377 "WHERE parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2378 ($args{startwith} ? " AND group_name ~* ?" : '').
2379 ($args{filter} ? " AND group_name ~* ?" : '');
2380 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2381 $errstr = $dbh->errstr if !$count;
2382 return $count;
2383} # end getGroupCount
2384
2385
2386## DNSDB::getGroupList()
2387# Get a list of sub^n-groups in the specified group(s)
2388# Takes the same arguments as getGroupCount() above
2389# Returns an arrayref containing hashrefs suitable for feeding straight to HTML::Template
2390sub getGroupList {
2391 my $dbh = shift;
2392
2393 my %args = @_;
2394
2395 my @filterargs;
2396
2397 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2398 push @filterargs, "^$args{startwith}" if $args{startwith};
2399 push @filterargs, $args{filter} if $args{filter};
2400
2401 # protection against bad or missing arguments
2402 $args{sortorder} = 'ASC' if !$args{sortorder};
2403 $args{offset} = 0 if !$args{offset};
2404
2405 # munge sortby for columns in database
2406 $args{sortby} = 'g.group_name' if $args{sortby} eq 'group';
2407 $args{sortby} = 'g2.group_name' if $args{sortby} eq 'parent';
2408
2409 my $sql = q(SELECT g.group_id AS groupid, g.group_name AS groupname, g2.group_name AS pgroup,
2410 count(distinct(u.username)) AS nusers, count(distinct(d.domain)) AS ndomains,
2411 count(distinct(r.revnet)) AS nrevzones
2412 FROM groups g
2413 INNER JOIN groups g2 ON g2.group_id=g.parent_group_id
2414 LEFT OUTER JOIN users u ON u.group_id=g.group_id
2415 LEFT OUTER JOIN domains d ON d.group_id=g.group_id
2416 LEFT OUTER JOIN revzones r ON r.group_id=g.group_id
2417 ).
2418 "WHERE g.parent_group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2419 ($args{startwith} ? " AND g.group_name ~* ?" : '').
2420 ($args{filter} ? " AND g.group_name ~* ?" : '').
2421 " GROUP BY g.group_id, g.group_name, g2.group_name ".
2422 " ORDER BY $args{sortby} $args{sortorder} ".
2423 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2424 my $glist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2425 $errstr = $dbh->errstr if !$glist;
2426 return $glist;
2427} # end getGroupList
2428
2429
2430## DNSDB::groupID()
2431# Return the group ID based on the group name
2432# Takes a database handle and the group name
2433# Returns the group ID or undef on failure
2434sub groupID {
2435 $errstr = '';
2436 my $dbh = shift;
2437 my $group = shift;
2438 my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
2439 $errstr = $DBI::errstr if !$grpid;
2440 return $grpid if $grpid;
2441} # end groupID()
2442
2443
2444## DNSDB::addUser()
2445# Add a user.
2446# Takes a DB handle, username, group ID, password, state (active/inactive).
2447# Optionally accepts:
2448# user type (user/admin) - defaults to user
2449# permissions string - defaults to inherit from group
2450# three valid forms:
2451# i - Inherit permissions
2452# c:<user_id> - Clone permissions from <user_id>
2453# C:<permission list> - Set these specific permissions
2454# first name - defaults to username
2455# last name - defaults to blank
2456# phone - defaults to blank (could put other data within column def)
2457# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
2458sub addUser {
2459 $errstr = '';
2460 my $dbh = shift;
2461 my $username = shift;
2462 my $group = shift;
2463 my $pass = shift;
2464 my $state = shift;
2465
2466 return ('FAIL', "Missing one or more required entries") if !defined($state);
2467 return ('FAIL', "Username must not be blank") if !$username;
2468
2469 my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
2470
2471 my $permstring = shift || 'i'; # default is to inhert permissions from group
2472
2473 my $fname = shift || $username;
2474 my $lname = shift || '';
2475 my $phone = shift || ''; # not going format-check
2476
2477 my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2478 my $user_id;
2479
2480# quick check to start to see if we've already got one
2481 $sth->execute($username);
2482 ($user_id) = $sth->fetchrow_array;
2483
2484 return ('FAIL', "User already exists") if $user_id;
2485
2486 # Allow transactions, and raise an exception on errors so we can catch it later.
2487 # Use local to make sure these get "reset" properly on exiting this block
2488 local $dbh->{AutoCommit} = 0;
2489 local $dbh->{RaiseError} = 1;
2490
2491 # Wrap all the SQL in a transaction
2492 eval {
2493 # insert the user... note we set inherited perms by default since
2494 # it's simple and cleans up some other bits of state
2495 my $sth = $dbh->prepare("INSERT INTO users ".
2496 "(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2497 "VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2498 $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2499
2500 # get the ID...
2501 ($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2502
2503# Permissions! Gotta set'em all!
2504 die "Invalid permission string $permstring"
2505 if $permstring !~ /^(?:
2506 i # inherit
2507 |c:\d+ # clone
2508 # custom. no, the leading , is not a typo
2509 |C:(?:,(?:group|user|domain|record|self)_(?:edit|create|delete))*
2510 )$/x;
2511# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2512 if ($permstring ne 'i') {
2513 # for cloned or custom permissions, we have to create a new permissions entry.
2514 my $clonesrc = $group;
2515 if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2516 $dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2517 "SELECT $permlist,? FROM permissions WHERE permission_id=".
2518 "(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2519 undef, ($user_id,$clonesrc) );
2520 $dbh->do("UPDATE users SET permission_id=".
2521 "(SELECT permission_id FROM permissions WHERE user_id=?) ".
2522 "WHERE user_id=?", undef, ($user_id, $user_id) );
2523 }
2524 if ($permstring =~ /^C:/) {
2525 # finally for custom permissions, we set the passed-in permissions (and unset
2526 # any that might have been brought in by the clone operation above)
2527 my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2528 undef, ($user_id) );
2529 foreach (@permtypes) {
2530 if ($permstring =~ /,$_/) {
2531 $dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2532 } else {
2533 $dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2534 }
2535 }
2536 }
2537
2538 $dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2539
2540##fixme: add another table to hold name/email for log table?
2541
2542 _log($dbh, (group_id => $group, entry => "Added user $username ($fname $lname)"));
2543 # once we get here, we should have suceeded.
2544 $dbh->commit;
2545 }; # end eval
2546
2547 if ($@) {
2548 my $msg = $@;
2549 eval { $dbh->rollback; };
2550 if ($config{log_failures}) {
2551 _log($dbh, (group_id => $group, entry => "Error adding user $username: $msg"));
2552 $dbh->commit; # since we enabled transactions earlier
2553 }
2554 return ('FAIL',"Error adding user $username: $msg");
2555 }
2556
2557 return ('OK',"User $username ($fname $lname) added");
2558} # end addUser
2559
2560
2561## DNSDB::getUserCount()
2562# Get count of users in group
2563# Takes a database handle and hash containing at least the current group, and optionally:
2564# - a reference list of secondary groups
2565# - a filter string
2566# - a "Starts with" string
2567sub getUserCount {
2568 my $dbh = shift;
2569
2570 my %args = @_;
2571
2572 my @filterargs;
2573
2574 $args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]|0-9)$/;
2575 push @filterargs, "^$args{startwith}" if $args{startwith};
2576 push @filterargs, $args{filter} if $args{filter};
2577
2578
2579 my $sql = "SELECT count(*) FROM users ".
2580 "WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2581 ($args{startwith} ? " AND username ~* ?" : '').
2582 ($args{filter} ? " AND username ~* ?" : '');
2583 my ($count) = $dbh->selectrow_array($sql, undef, (@filterargs) );
2584 $errstr = $dbh->errstr if !$count;
2585 return $count;
2586} # end getUserCount()
2587
2588
2589## DNSDB::getUserList()
2590# Get list of users
2591# Takes the same arguments as getUserCount() above, plus optional:
2592# - sort field
2593# - sort order
2594# - offset/return-all-everything flag (defaults to $perpage records)
2595sub getUserList {
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 # better to request sorts on "simple" names, but it means we need to map it to real columns
2607 my %sortmap = (user => 'u.username', type => 'u.type', group => 'g.group_name', status => 'u.status',
2608 fname => 'fname');
2609 $args{sortby} = $sortmap{$args{sortby}};
2610
2611 # protection against bad or missing arguments
2612 $args{sortorder} = 'ASC' if !$args{sortorder};
2613 $args{sortby} = 'u.username' if !$args{sortby};
2614 $args{offset} = 0 if !$args{offset};
2615
2616 my $sql = "SELECT u.user_id, u.username, u.firstname || ' ' || u.lastname AS fname, u.type, g.group_name, u.status ".
2617 "FROM users u ".
2618 "INNER JOIN groups g ON u.group_id=g.group_id ".
2619 "WHERE u.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
2620 ($args{startwith} ? " AND u.username ~* ?" : '').
2621 ($args{filter} ? " AND u.username ~* ?" : '').
2622 " ORDER BY $args{sortby} $args{sortorder} ".
2623 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
2624 my $ulist = $dbh->selectall_arrayref($sql, { Slice => {} }, (@filterargs) );
2625 $errstr = $dbh->errstr if !$ulist;
2626 return $ulist;
2627} # end getUserList()
2628
2629
2630## DNSDB::getUserDropdown()
2631# Get a list of usernames for use in a dropdown menu.
2632# Takes a database handle, current group, and optional "tag this as selected" flag.
2633# Returns a reference to a list of hashrefs suitable to feeding to HTML::Template
2634sub getUserDropdown {
2635 my $dbh = shift;
2636 my $grp = shift;
2637 my $sel = shift || 0;
2638
2639 my $sth = $dbh->prepare("SELECT username,user_id FROM users WHERE group_id=?");
2640 $sth->execute($grp);
2641
2642 my @userlist;
2643 while (my ($username,$uid) = $sth->fetchrow_array) {
2644 my %row = (
2645 username => $username,
2646 uid => $uid,
2647 selected => ($sel == $uid ? 1 : 0)
2648 );
2649 push @userlist, \%row;
2650 }
2651 return \@userlist;
2652} # end getUserDropdown()
2653
2654
2655## DNSDB::checkUser()
2656# Check user/pass combo on login
2657sub checkUser {
2658 my $dbh = shift;
2659 my $user = shift;
2660 my $inpass = shift;
2661
2662 my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
2663 $sth->execute($user);
2664 my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
2665 my $loginfailed = 1 if !defined($uid);
2666
2667 if ($pass =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
2668 $loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
2669 } else {
2670 $loginfailed = 1 if $pass ne $inpass;
2671 }
2672
2673 # nnnngggg
2674 return ($uid, $gid);
2675} # end checkUser
2676
2677
2678## DNSDB:: updateUser()
2679# Update general data about user
2680sub updateUser {
2681 my $dbh = shift;
2682
2683##fixme: tweak calling convention so that we can update any given bit of data
2684 my $uid = shift;
2685 my $username = shift;
2686 my $group = shift;
2687 my $pass = shift;
2688 my $state = shift;
2689 my $type = shift || 'u';
2690 my $fname = shift || $username;
2691 my $lname = shift || '';
2692 my $phone = shift || ''; # not going format-check
2693
2694 my $resultmsg = '';
2695
2696 # Allow transactions, and raise an exception on errors so we can catch it later.
2697 # Use local to make sure these get "reset" properly on exiting this block
2698 local $dbh->{AutoCommit} = 0;
2699 local $dbh->{RaiseError} = 1;
2700
2701 my $sth;
2702
2703 # Password can be left blank; if so we assume there's one on file.
2704 # Actual blank passwords are bad, mm'kay?
2705 if (!$pass) {
2706 ($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
2707 } else {
2708 $pass = unix_md5_crypt($pass);
2709 }
2710
2711 eval {
2712 $dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
2713 " WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
2714 $resultmsg = "Updated user info for $username ($fname $lname)";
2715 _log($dbh, group_id => $group, entry => $resultmsg);
2716 $dbh->commit;
2717 };
2718 if ($@) {
2719 my $msg = $@;
2720 eval { $dbh->rollback; };
2721 if ($config{log_failures}) {
2722 _log($dbh, (group_id => $group, entry => "Error updating user $username: $msg"));
2723 $dbh->commit; # since we enabled transactions earlier
2724 }
2725 return ('FAIL',"Error updating user $username: $msg");
2726 }
2727
2728 return ('OK',$resultmsg);
2729} # end updateUser()
2730
2731
2732## DNSDB::delUser()
2733# Delete a user.
2734# Takes a database handle and user ID
2735# Returns a success/failure code and matching message
2736sub delUser {
2737 my $dbh = shift;
2738 my $userid = shift;
2739
2740 return ('FAIL',"Bad userid") if !defined($userid);
2741
2742 my $userdata = getUserData($dbh, $userid);
2743
2744 # Allow transactions, and raise an exception on errors so we can catch it later.
2745 # Use local to make sure these get "reset" properly on exiting this block
2746 local $dbh->{AutoCommit} = 0;
2747 local $dbh->{RaiseError} = 1;
2748
2749 eval {
2750 $dbh->do("DELETE FROM users WHERE user_id=?", undef, ($userid));
2751 _log($dbh, (group_id => $userdata->{group_id},
2752 entry => "Deleted user ID $userid/".$userdata->{username}.
2753 " (".$userdata->{firstname}." ".$userdata->{lastname}.")") );
2754 $dbh->commit;
2755 };
2756 if ($@) {
2757 my $msg = $@;
2758 eval { $dbh->rollback; };
2759 if ($config{log_failures}) {
2760 _log($dbh, (group_id => $userdata->{group_id}, entry => "Error deleting user ID ".
2761 "$userid/".$userdata->{username}.": $msg") );
2762 $dbh->commit;
2763 }
2764 return ('FAIL',"Error deleting user $userid/".$userdata->{username}.": $msg");
2765 }
2766
2767 return ('OK',"Deleted user ".$userdata->{username}." (".$userdata->{firstname}." ".$userdata->{lastname}.")");
2768} # end delUser
2769
2770
2771## DNSDB::userFullName()
2772# Return a pretty string!
2773# Takes a user_id and optional printf-ish string to indicate which pieces where:
2774# %u for the username
2775# %f for the first name
2776# %l for the last name
2777# All other text in the passed string will be left as-is.
2778##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
2779sub userFullName {
2780 $errstr = '';
2781 my $dbh = shift;
2782 my $userid = shift;
2783 my $fullformat = shift || '%f %l (%u)';
2784 my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
2785 $sth->execute($userid);
2786 my ($uname,$fname,$lname) = $sth->fetchrow_array();
2787 $errstr = $DBI::errstr if !$uname;
2788
2789 $fullformat =~ s/\%u/$uname/g;
2790 $fullformat =~ s/\%f/$fname/g;
2791 $fullformat =~ s/\%l/$lname/g;
2792
2793 return $fullformat;
2794} # end userFullName
2795
2796
2797## DNSDB::userStatus()
2798# Sets and/or returns a user's status
2799# Takes a database handle, user ID and optionally a status argument
2800# Returns undef on errors.
2801sub userStatus {
2802 my $dbh = shift;
2803 my $id = shift;
2804 my $newstatus = shift || 'mu';
2805
2806 return undef if $id !~ /^\d+$/;
2807
2808 my $userdata = getUserData($dbh, $id);
2809
2810 # Allow transactions, and raise an exception on errors so we can catch it later.
2811 # Use local to make sure these get "reset" properly on exiting this block
2812 local $dbh->{AutoCommit} = 0;
2813 local $dbh->{RaiseError} = 1;
2814
2815 if ($newstatus ne 'mu') {
2816 # ooo, fun! let's see what we were passed for status
2817 eval {
2818 $newstatus = 0 if $newstatus eq 'useroff';
2819 $newstatus = 1 if $newstatus eq 'useron';
2820 $dbh->do("UPDATE users SET status=? WHERE user_id=?", undef, ($newstatus, $id));
2821
2822 $resultstr = ($newstatus ? 'Enabled' : 'Disabled')." user ".$userdata->{username}.
2823 " (".$userdata->{firstname}." ".$userdata->{lastname}.")";
2824
2825 my %loghash;
2826 $loghash{group_id} = parentID($dbh, (id => $id, type => 'user'));
2827 $loghash{entry} = $resultstr;
2828 _log($dbh, %loghash);
2829
2830 $dbh->commit;
2831 };
2832 if ($@) {
2833 my $msg = $@;
2834 eval { $dbh->rollback; };
2835 $resultstr = '';
2836 $errstr = $msg;
2837##fixme: failure logging?
2838 return;
2839 }
2840 }
2841
2842 my ($status) = $dbh->selectrow_array("SELECT status FROM users WHERE user_id=?", undef, ($id));
2843 return $status;
2844} # end userStatus()
2845
2846
2847## DNSDB::getUserData()
2848# Get misc user data for display
2849sub getUserData {
2850 my $dbh = shift;
2851 my $uid = shift;
2852
2853 my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
2854 "FROM users WHERE user_id=?");
2855 $sth->execute($uid);
2856 return $sth->fetchrow_hashref();
2857
2858} # end getUserData()
2859
2860
2861## DNSDB::getSOA()
2862# Return all suitable fields from an SOA record in separate elements of a hash
2863# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
2864sub getSOA {
2865 $errstr = '';
2866 my $dbh = shift;
2867 my $def = shift;
2868 my $rev = shift;
2869 my $id = shift;
2870
2871 # (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
2872 # - should really attach serial to the zone parent somewhere
2873
2874 my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
2875 " WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
2876 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
2877 return if !$ret;
2878##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
2879
2880 ($ret->{contact},$ret->{prins}) = split /:/, $ret->{host};
2881 delete $ret->{host};
2882 ($ret->{refresh},$ret->{retry},$ret->{expire},$ret->{minttl}) = split /:/, $ret->{val};
2883 delete $ret->{val};
2884
2885 return $ret;
2886} # end getSOA()
2887
2888
2889## DNSDB::updateSOA()
2890# Update the specified SOA record
2891# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
2892# Returns a two-element list with a result code and message
2893sub updateSOA {
2894 my $dbh = shift;
2895 my $defrec = shift;
2896 my $revrec = shift;
2897
2898 my %soa = @_;
2899
2900 my $oldsoa = getSOA($dbh, $defrec, $revrec, $soa{id});
2901
2902 my $msg;
2903 my %logdata;
2904 if ($defrec eq 'n') {
2905 $logdata{domain_id} = $soa{id} if $revrec eq 'n';
2906 $logdata{rdns_id} = $soa{id} if $revrec eq 'y';
2907 $logdata{group_id} = parentID($dbh, (id => $soa{id}, revrec => $revrec,
2908 type => ($revrec eq 'n' ? 'domain' : 'revzone') ) );
2909 } else {
2910 $logdata{group_id} = $soa{id};
2911 }
2912 my $parname = ($defrec eq 'y' ? groupName($dbh, $soa{id}) :
2913 ($revrec eq 'n' ? domainName($dbh, $soa{id}) : revName($dbh, $soa{id})) );
2914
2915 # Allow transactions, and raise an exception on errors so we can catch it later.
2916 # Use local to make sure these get "reset" properly on exiting this block
2917 local $dbh->{AutoCommit} = 0;
2918 local $dbh->{RaiseError} = 1;
2919
2920 eval {
2921 my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
2922 $dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
2923 $soa{ttl}, $oldsoa->{record_id}) );
2924 $msg = "Updated ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse ' : 'default ') : '').
2925 "SOA for $parname: ".
2926 "(ns $oldsoa->{prins}, contact $oldsoa->{contact}, refresh $oldsoa->{refresh},".
2927 " retry $oldsoa->{retry}, expire $oldsoa->{expire}, minTTL $oldsoa->{minttl}, TTL $oldsoa->{ttl}) to ".
2928 "(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
2929 " retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
2930
2931 $logdata{entry} = $msg;
2932 _log($dbh, %logdata);
2933
2934 $dbh->commit;
2935 };
2936 if ($@) {
2937 $msg = $@;
2938 eval { $dbh->rollback; };
2939 $logdata{entry} = "Error updating ".($defrec eq 'y' ? ($revrec eq 'y' ? 'default reverse zone ' : 'default ') : '').
2940 "SOA record for $parname: $msg";
2941 if ($config{log_failures}) {
2942 _log($dbh, %logdata);
2943 $dbh->commit;
2944 }
2945 return ('FAIL', $logdata{entry});
2946 } else {
2947 return ('OK', $msg);
2948 }
2949} # end updateSOA()
2950
2951
2952## DNSDB::getRecLine()
2953# Return all data fields for a zone record in separate elements of a hash
2954# Takes a database handle, default/live flag, forward/reverse flag, and record ID
2955sub getRecLine {
2956 $errstr = '';
2957 my $dbh = shift;
2958 my $defrec = shift;
2959 my $revrec = shift;
2960 my $id = shift;
2961
2962 my $sql = "SELECT record_id,host,type,val,ttl".($revrec eq 'n' ? ',distance,weight,port' : '').
2963 (($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id FROM ').
2964 _rectable($defrec,$revrec)." WHERE record_id=?";
2965 my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
2966
2967 if ($dbh->err) {
2968 $errstr = $DBI::errstr;
2969 return undef;
2970 }
2971
2972 if (!$ret) {
2973 $errstr = "No such record";
2974 return undef;
2975 }
2976
2977 # explicitly set a parent id
2978 if ($defrec eq 'y') {
2979 $ret->{parid} = $ret->{group_id};
2980 } else {
2981 $ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
2982 # and a secondary if we have a custom type that lives in both a forward and reverse zone
2983 $ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
2984 }
2985
2986 return $ret;
2987}
2988
2989
2990##fixme: should use above (getRecLine()) to get lines for below?
2991## DNSDB::getDomRecs()
2992# Return records for a domain
2993# Takes a database handle, default/live flag, group/domain ID, start,
2994# number of records, sort field, and sort order
2995# Returns a reference to an array of hashes
2996sub getDomRecs {
2997 $errstr = '';
2998 my $dbh = shift;
2999 my $def = shift;
3000 my $rev = shift;
3001 my $id = shift;
3002 my $nrecs = shift || 'all';
3003 my $nstart = shift || 0;
3004
3005## for order, need to map input to column names
3006 my $order = shift || 'host';
3007 my $direction = shift || 'ASC';
3008
3009 my $filter = shift || '';
3010
3011 my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
3012 $sql .= ",r.distance,r.weight,r.port" if $rev eq 'n';
3013 $sql .= " FROM "._rectable($def,$rev)." r ";
3014 $sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
3015 $sql .= "WHERE "._recparent($def,$rev)." = ?";
3016 $sql .= " AND NOT r.type=$reverse_typemap{SOA}";
3017 $sql .= " AND host ~* ?" if $filter;
3018 # use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
3019 $sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
3020 # ensure consistent ordering by sorting on record_id too
3021 $sql .= ", record_id $direction";
3022
3023 my @bindvars = ($id);
3024 push @bindvars, $filter if $filter;
3025
3026 # just to be ultraparanoid about SQL injection vectors
3027 if ($nstart ne 'all') {
3028 $sql .= " LIMIT ? OFFSET ?";
3029 push @bindvars, $nrecs;
3030 push @bindvars, ($nstart*$nrecs);
3031 }
3032 my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
3033 $sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
3034
3035 my @retbase;
3036 while (my $ref = $sth->fetchrow_hashref()) {
3037 push @retbase, $ref;
3038 }
3039
3040 my $ret = \@retbase;
3041 return $ret;
3042} # end getDomRecs()
3043
3044
3045## DNSDB::getRecCount()
3046# Return count of non-SOA records in zone (or default records in a group)
3047# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
3048# and optional filtering modifier
3049# Returns the count
3050sub getRecCount {
3051 my $dbh = shift;
3052 my $defrec = shift;
3053 my $revrec = shift;
3054 my $id = shift;
3055 my $filter = shift || '';
3056
3057 # keep the nasties down, since we can't ?-sub this bit. :/
3058 # note this is chars allowed in DNS hostnames
3059 $filter =~ s/[^a-zA-Z0-9_.:-]//g;
3060
3061 my @bindvars = ($id);
3062 push @bindvars, $filter if $filter;
3063 my $sql = "SELECT count(*) FROM ".
3064 _rectable($defrec,$revrec).
3065 " WHERE "._recparent($defrec,$revrec)."=? ".
3066 "AND NOT type=$reverse_typemap{SOA}".
3067 ($filter ? " AND host ~* ?" : '');
3068 my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
3069
3070 return $count;
3071
3072} # end getRecCount()
3073
3074
3075## DNSDB::addRec()
3076# Add a new record to a domain or a group's default records
3077# Takes a database handle, default/live flag, group/domain ID,
3078# host, type, value, and TTL
3079# Some types require additional detail: "distance" for MX and SRV,
3080# and weight/port for SRV
3081# Returns a status code and detail message in case of error
3082##fixme: pass a hash with the record data, not a series of separate values
3083sub addRec {
3084 $errstr = '';
3085 my $dbh = shift;
3086 my $defrec = shift;
3087 my $revrec = shift;
3088 my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
3089 # domain_id for domain records)
3090
3091 my $host = shift;
3092 my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
3093 my $val = shift;
3094 my $ttl = shift;
3095
3096 # prep for validation
3097 my $addr = NetAddr::IP->new($$val);
3098 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3099
3100 my $domid = 0;
3101 my $revid = 0;
3102
3103 my $retcode = 'OK'; # assume everything will go OK
3104 my $retmsg = '';
3105
3106 # do simple validation first
3107 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3108
3109 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3110 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3111 # of types. Other things may also be added to validate default records of several flavours.
3112 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z . _)")
3113 if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.-]+$/i;
3114
3115 # Collect these even if we're only doing a simple A record so we can call *any* validation sub
3116 my $dist = shift;
3117 my $weight = shift;
3118 my $port = shift;
3119
3120 my $fields;
3121 my @vallist;
3122
3123 # Call the validation sub for the type requested.
3124 ($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec, id => $id,
3125 host => $host, rectype => $rectype, val => $val, addr => $addr,
3126 dist => \$dist, port => \$port, weight => \$weight,
3127 fields => \$fields, vallist => \@vallist) );
3128
3129 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3130
3131 # Set up database fields and bind parameters
3132 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3133 push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
3134 my $vallen = '?'.(',?'x$#vallist);
3135
3136 # Put together the success log entry. We have to use this horrible kludge
3137 # because domain_id and rdns_id may or may not be present, and if they are,
3138 # they're not at a guaranteed consistent index in the array. wheee!
3139 my %logdata;
3140 my @ftmp = split /,/, $fields;
3141 for (my $i=0; $i <= $#vallist; $i++) {
3142 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3143 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3144 }
3145 $logdata{group_id} = $id if $defrec eq 'y';
3146 $logdata{group_id} = parentID($dbh,
3147 (id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3148 if $defrec eq 'n';
3149 $logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record');
3150 # NS records for revzones get special treatment
3151 if ($revrec eq 'y' && $$rectype == 2) {
3152 $logdata{entry} .= " '$$val $typemap{$$rectype} $$host";
3153 } else {
3154 $logdata{entry} .= " '$$host $typemap{$$rectype} $$val";
3155 }
3156
3157 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3158 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
3159 if $typemap{$$rectype} eq 'SRV';
3160 $logdata{entry} .= "', TTL $ttl";
3161
3162 # Allow transactions, and raise an exception on errors so we can catch it later.
3163 # Use local to make sure these get "reset" properly on exiting this block
3164 local $dbh->{AutoCommit} = 0;
3165 local $dbh->{RaiseError} = 1;
3166
3167 eval {
3168 $dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
3169 undef, @vallist);
3170 _log($dbh, %logdata);
3171 $dbh->commit;
3172 };
3173 if ($@) {
3174 my $msg = $@;
3175 eval { $dbh->rollback; };
3176 if ($config{log_failures}) {
3177 $logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
3178 "record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
3179 _log($dbh, %logdata);
3180 $dbh->commit;
3181 }
3182 return ('FAIL',$msg);
3183 }
3184
3185 $resultstr = $logdata{entry};
3186 return ($retcode, $retmsg);
3187
3188} # end addRec()
3189
3190
3191## DNSDB::updateRec()
3192# Update a record
3193# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
3194# Returns a status code and message
3195sub updateRec {
3196 $errstr = '';
3197
3198 my $dbh = shift;
3199 my $defrec = shift;
3200 my $revrec = shift;
3201 my $id = shift;
3202 my $parid = shift; # immediate parent entity that we're descending from to update the record
3203
3204 # all records have these
3205 my $host = shift;
3206 my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
3207 my $rectype = shift;
3208 my $val = shift;
3209 my $ttl = shift;
3210
3211 # prep for validation
3212 my $addr = NetAddr::IP->new($$val);
3213 $$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
3214
3215 my $domid = 0;
3216 my $revid = 0;
3217
3218 my $retcode = 'OK'; # assume everything will go OK
3219 my $retmsg = '';
3220
3221 # do simple validation first
3222 return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
3223
3224 # Quick check on hostname parts. Note the regex is more forgiving than the error message;
3225 # domain names technically are case-insensitive, and we use printf-like % codes for a couple
3226 # of types. Other things may also be added to validate default records of several flavours.
3227 return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z - . _)")
3228 if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.-]+$/i;
3229
3230 # only MX and SRV will use these
3231 my $dist = shift || 0;
3232 my $weight = shift || 0;
3233 my $port = shift || 0;
3234
3235 my $fields;
3236 my @vallist;
3237
3238 # get old record data so we have the right parent ID
3239 # and for logging (eventually)
3240 my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
3241
3242 # Call the validation sub for the type requested.
3243 # Note the ID to pass here is the *parent*, not the record
3244 ($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec,
3245 id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
3246 host => $host, rectype => $rectype, val => $val, addr => $addr,
3247 dist => \$dist, port => \$port, weight => \$weight,
3248 fields => \$fields, vallist => \@vallist,
3249 update => $id) );
3250
3251 return ($retcode,$retmsg) if $retcode eq 'FAIL';
3252
3253 # Set up database fields and bind parameters. Note only the optional fields
3254 # (distance, weight, port, secondary parent ID) are added in the validation call above
3255 $fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
3256 push @vallist, ($$host,$$rectype,$$val,$ttl,
3257 ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
3258
3259 # hack hack PTHUI
3260 # need to forcibly make sure we disassociate a record with a parent it's no longer related to.
3261 # eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
3262 # mainly needed for crossover types that got coerced down to "standard" types
3263 if ($defrec eq 'n') {
3264 if ($$rectype == $reverse_typemap{PTR}) {
3265 $fields .= ",domain_id";
3266 push @vallist, 0;
3267 }
3268 if ($$rectype == $reverse_typemap{A} || $$rectype == $reverse_typemap{AAAA}) {
3269 $fields .= ",rdns_id";
3270 push @vallist, 0;
3271 }
3272 }
3273 if ($defrec eq 'n') {
3274 $domid = $parid if $revrec eq 'n';
3275 $revid = $parid if $revrec eq 'y';
3276 }
3277
3278 # Put together the success log entry. Horrible kludge from addRec() copied as-is since
3279 # we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
3280 # will be maintained (due to "not-in-zone" validation changes)
3281 my %logdata;
3282 $logdata{domain_id} = $domid;
3283 $logdata{rdns_id} = $revid;
3284 my @ftmp = split /,/, $fields;
3285 for (my $i=0; $i <= $#vallist; $i++) {
3286 $logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
3287 $logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
3288 }
3289 $logdata{group_id} = $parid if $defrec eq 'y';
3290 $logdata{group_id} = parentID($dbh,
3291 (id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3292 if $defrec eq 'n';
3293 $logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n";
3294 # NS records for revzones get special treatment
3295 if ($revrec eq 'y' && $$rectype == 2) {
3296 $logdata{entry} .= " '$oldrec->{val} $typemap{$oldrec->{type}} $oldrec->{host}";
3297 } else {
3298 $logdata{entry} .= " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3299 }
3300 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3301 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3302 if $typemap{$oldrec->{type}} eq 'SRV';
3303 $logdata{entry} .= "', TTL $oldrec->{ttl}\nto\n";
3304 # More NS special
3305 if ($revrec eq 'y' && $$rectype == 2) {
3306 $logdata{entry} .= "'$$val $typemap{$$rectype} $$host";
3307 } else {
3308 $logdata{entry} .= "'$$host $typemap{$$rectype} $$val";
3309 }
3310 $logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
3311 $logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
3312 $logdata{entry} .= "', TTL $ttl";
3313
3314 local $dbh->{AutoCommit} = 0;
3315 local $dbh->{RaiseError} = 1;
3316
3317 # Fiddle the field list into something suitable for updates
3318 $fields =~ s/,/=?,/g;
3319 $fields .= "=?";
3320
3321 eval {
3322 $dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
3323 _log($dbh, %logdata);
3324 $dbh->commit;
3325 };
3326 if ($@) {
3327 my $msg = $@;
3328 eval { $dbh->rollback; };
3329 if ($config{log_failures}) {
3330 $logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
3331 "record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3332 _log($dbh, %logdata);
3333 $dbh->commit;
3334 }
3335 return ('FAIL', $msg);
3336 }
3337
3338 $resultstr = $logdata{entry};
3339 return ($retcode, $retmsg);
3340} # end updateRec()
3341
3342
3343## DNSDB::delRec()
3344# Delete a record.
3345sub delRec {
3346 $errstr = '';
3347 my $dbh = shift;
3348 my $defrec = shift;
3349 my $revrec = shift;
3350 my $id = shift;
3351
3352 my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
3353
3354 # Allow transactions, and raise an exception on errors so we can catch it later.
3355 # Use local to make sure these get "reset" properly on exiting this block
3356 local $dbh->{AutoCommit} = 0;
3357 local $dbh->{RaiseError} = 1;
3358
3359 # Put together the log entry
3360 my %logdata;
3361 $logdata{domain_id} = $oldrec->{domain_id};
3362 $logdata{rdns_id} = $oldrec->{rdns_id};
3363 $logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
3364 $logdata{group_id} = parentID($dbh,
3365 (id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
3366 if $defrec eq 'n';
3367 $logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
3368 "'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
3369 $logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
3370 $logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
3371 if $typemap{$oldrec->{type}} eq 'SRV';
3372 $logdata{entry} .= "', TTL $oldrec->{ttl}\n";
3373
3374 eval {
3375 my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
3376 _log($dbh, %logdata);
3377 $dbh->commit;
3378 };
3379 if ($@) {
3380 my $msg = $@;
3381 eval { $dbh->rollback; };
3382 if ($config{log_failures}) {
3383 $logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
3384 " '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
3385 _log($dbh, %logdata);
3386 $dbh->commit;
3387 }
3388 return ('FAIL', $msg);
3389 }
3390
3391 return ('OK',$logdata{entry});
3392} # end delRec()
3393
3394
3395## DNSDB::getLogCount()
3396# Get a count of log entries
3397# Takes a database handle and a hash containing at least:
3398# - Entity ID and entity type as the primary log "slice"
3399sub getLogCount {
3400 my $dbh = shift;
3401
3402 my %args = @_;
3403
3404 my @filterargs;
3405##fixme: which fields do we want to filter on?
3406# push @filterargs,
3407
3408 $errstr = 'Missing primary parent ID and/or type';
3409 # fail early if we don't have a "prime" ID to look for log entries for
3410 return if !$args{id};
3411
3412 # or if the prime id type is missing or invalid
3413 return if !$args{logtype};
3414 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3415 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
3416 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
3417
3418 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3419
3420 my $sql = "SELECT count(*) FROM log ".
3421 "WHERE $id_col{$args{logtype}}=?".
3422 ($args{filter} ? " AND entry ~* ?" : '');
3423 my ($count) = $dbh->selectrow_array($sql, undef, ($args{id}, @filterargs) );
3424 $errstr = $dbh->errstr if !$count;
3425 return $count;
3426} # end getLogCount()
3427
3428
3429## DNSDB::getLogEntries()
3430# Get a list of log entries
3431# Takes arguments as with getLogCount() above, plus optional:
3432# - sort field
3433# - sort order
3434# - offset for pagination
3435sub getLogEntries {
3436 my $dbh = shift;
3437
3438 my %args = @_;
3439
3440 my @filterargs;
3441
3442 # fail early if we don't have a "prime" ID to look for log entries for
3443 return if !$args{id};
3444
3445 # or if the prime id type is missing or invalid
3446 return if !$args{logtype};
3447 $args{logtype} = 'revzone' if $args{logtype} eq 'rdns'; # hack pthui
3448 $args{logtype} = 'domain' if $args{logtype} eq 'dom'; # hack pthui
3449 return if !grep /^$args{logtype}$/, ('group', 'domain', 'revzone', 'user');
3450
3451 # Sorting defaults
3452 $args{sortby} = 'stamp' if !$args{sortby};
3453 $args{sortorder} = 'DESC' if !$args{sortorder};
3454 $args{offset} = 0 if !$args{offset};
3455
3456 my %sortmap = (fname => 'name', username => 'email', entry => 'entry', stamp => 'stamp');
3457 $args{sortby} = $sortmap{$args{sortby}};
3458
3459 my $sql = "SELECT user_id AS userid, email AS useremail, name AS userfname, entry AS logentry, ".
3460 "date_trunc('second',stamp) AS logtime ".
3461 "FROM log ".
3462 "WHERE $id_col{$args{logtype}}=?".
3463 ($args{filter} ? " AND entry ~* ?" : '').
3464 " ORDER BY $args{sortby} $args{sortorder}, log_id $args{sortorder}".
3465 ($args{offset} eq 'all' ? '' : " LIMIT $config{perpage} OFFSET ".$args{offset}*$config{perpage});
3466 my $loglist = $dbh->selectall_arrayref($sql, { Slice => {} }, ($args{id}, @filterargs) );
3467 $errstr = $dbh->errstr if !$loglist;
3468 return $loglist;
3469} # end getLogEntries()
3470
3471
3472## DNSDB::getTypelist()
3473# Get a list of record types for various UI dropdowns
3474# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
3475# Returns an arrayref to list of hashrefs perfect for HTML::Template
3476sub getTypelist {
3477 my $dbh = shift;
3478 my $recgroup = shift;
3479 my $type = shift || $reverse_typemap{A};
3480
3481 # also accepting $webvar{revrec}!
3482 $recgroup = 'f' if $recgroup eq 'n';
3483 $recgroup = 'r' if $recgroup eq 'y';
3484
3485 my $sql = "SELECT val,name FROM rectypes WHERE ";
3486 if ($recgroup eq 'r') {
3487 # reverse zone types
3488 $sql .= "stdflag=2 OR stdflag=3";
3489 } elsif ($recgroup eq 'l') {
3490 # DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
3491 $sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
3492 } else {
3493 # default; forward zone types. technically $type eq 'f' but not worth the error message.
3494 $sql .= "stdflag=1 OR stdflag=2";
3495 }
3496 $sql .= " ORDER BY listorder";
3497
3498 my $sth = $dbh->prepare($sql);
3499 $sth->execute;
3500 my @typelist;
3501 while (my ($rval,$rname) = $sth->fetchrow_array()) {
3502 my %row = ( recval => $rval, recname => $rname );
3503 $row{tselect} = 1 if $rval == $type;
3504 push @typelist, \%row;
3505 }
3506
3507 # Add SOA on lookups since it's not listed in other dropdowns.
3508 if ($recgroup eq 'l') {
3509 my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
3510 $row{tselect} = 1 if $reverse_typemap{SOA} == $type;
3511 push @typelist, \%row;
3512 }
3513
3514 return \@typelist;
3515} # end getTypelist()
3516
3517
3518## DNSDB::parentID()
3519# Get ID of entity that is nearest parent to requested id
3520# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
3521# (domain/reverse zone or group), and optional default/live and forward/reverse flags
3522# Returns the ID or undef on failure
3523sub parentID {
3524 my $dbh = shift;
3525
3526 my %args = @_;
3527
3528 # clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
3529 $args{partype} = 'group' if !$args{partype};
3530 $args{partype} = 'domain' if $args{partype} eq 'revzone';
3531
3532 # clean up defrec and revrec. default to live record, forward zone
3533 $args{defrec} = 'n' if !$args{defrec};
3534 $args{revrec} = 'n' if !$args{revrec};
3535
3536 if ($par_type{$args{partype}} eq 'domain') {
3537 # only live records can have a domain/zone parent
3538 return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
3539 my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
3540 " FROM records WHERE record_id = ?",
3541 undef, ($args{id}) ) or return;
3542 return $result;
3543 } else {
3544 # snag some arguments that will either fall through or be overwritten to save some code duplication
3545 my $tmpid = $args{id};
3546 my $type = $args{type};
3547 if ($type eq 'record' && $args{defrec} eq 'n') {
3548 # Live records go through the records table first.
3549 ($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
3550 " FROM records WHERE record_id = ?",
3551 undef, ($args{id}) ) or return;
3552 $type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
3553 }
3554 my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
3555 undef, ($tmpid) );
3556 return $result;
3557 }
3558# should be impossible to get here with even remotely sane arguments
3559 return;
3560} # end parentID()
3561
3562
3563## DNSDB::isParent()
3564# Returns true if $id1 is a parent of $id2, false otherwise
3565sub isParent {
3566 my $dbh = shift;
3567 my $id1 = shift;
3568 my $type1 = shift;
3569 my $id2 = shift;
3570 my $type2 = shift;
3571##todo: immediate, secondary, full (default)
3572
3573 # Return false on invalid types
3574 return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
3575 return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
3576
3577 # Return false on impossible relations
3578 return 0 if $type1 eq 'record'; # nothing may be a child of a record
3579 return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
3580 return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
3581 return 0 if $type1 eq 'user'; # nothing may be child of a user
3582 return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
3583 return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
3584
3585 # ennnhhhh.... if we're passed an id of 0, it will never be found. usual
3586 # case would be the UI creating a new <thing>, and so we don't have an ID for
3587 # <thing> to look up yet. in that case the UI should check the parent as well.
3588 return 0 if $id1 == 0; # nothing can have a parent id of 0
3589 return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
3590
3591 # group 1 is the ultimate root parent
3592 return 1 if $type1 eq 'group' && $id1 == 1;
3593
3594 # groups are always (a) parent of themselves
3595 return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
3596
3597 my $id = $id2;
3598 my $type = $type2;
3599 my $foundparent = 0;
3600
3601 # Records are the only entity with two possible parents. We need to split the parent checks on
3602 # domain/rdns.
3603 if ($type eq 'record') {
3604 my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
3605 undef, ($id));
3606 # check immediate parent against request
3607 return 1 if $type1 eq 'domain' && $id1 == $dom;
3608 return 1 if $type1 eq 'revzone' && $id1 == $rdns;
3609 # if request is group, check *both* parents. Only check if the parent is nonzero though.
3610 return 1 if $dom && isParent($dbh, $id1, $type1, $dom, 'domain');
3611 return 1 if $rdns && isParent($dbh, $id1, $type1, $rdns, 'revzone');
3612 # exit here since we've executed the loop below by proxy in the above recursive calls.
3613 return 0;
3614 }
3615
3616# almost the same loop as getParents() above
3617 my $limiter = 0;
3618 while (1) {
3619 my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
3620 my $result = $dbh->selectrow_hashref($sql,
3621 undef, ($id) );
3622 if (!$result) {
3623 $limiter++;
3624##fixme: how often will this happen on a live site? fail at max limiter <n>?
3625 warn "no results looking for $sql with id $id (depth $limiter)\n";
3626 last;
3627 }
3628 if ($result && $result->{$par_col{$type}} == $id1) {
3629 $foundparent = 1;
3630 last;
3631 } else {
3632##fixme: do we care about trying to return a "no such record/domain/user/group" error?
3633# should be impossible to create an inconsistent DB just with API calls.
3634 warn $dbh->errstr." $sql, $id" if $dbh->errstr;
3635 }
3636 # group 1 is its own parent. need this here more to break strange loops than for detecting a parent
3637 last if $result->{$par_col{$type}} == 1;
3638 $id = $result->{$par_col{$type}};
3639 $type = $par_type{$type};
3640 }
3641
3642 return $foundparent;
3643} # end isParent()
3644
3645
3646## DNSDB::zoneStatus()
3647# Returns and optionally sets a zone's status
3648# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
3649# Returns status, or undef on errors.
3650sub zoneStatus {
3651 my $dbh = shift;
3652 my $id = shift;
3653 my $revrec = shift;
3654 my $newstatus = shift || 'mu';
3655
3656 return undef if $id !~ /^\d+$/;
3657
3658 # Allow transactions, and raise an exception on errors so we can catch it later.
3659 # Use local to make sure these get "reset" properly on exiting this block
3660 local $dbh->{AutoCommit} = 0;
3661 local $dbh->{RaiseError} = 1;
3662
3663 if ($newstatus ne 'mu') {
3664 # ooo, fun! let's see what we were passed for status
3665 eval {
3666 $newstatus = 0 if $newstatus eq 'domoff';
3667 $newstatus = 1 if $newstatus eq 'domon';
3668 $dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
3669 ($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
3670
3671##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
3672 $resultstr = "Changed ".($revrec eq 'n' ? domainName($dbh, $id) : revName($dbh, $id)).
3673 " state to ".($newstatus ? 'active' : 'inactive');
3674
3675 my %loghash;
3676 $loghash{domain_id} = $id if $revrec eq 'n';
3677 $loghash{rdns_id} = $id if $revrec eq 'y';
3678 $loghash{group_id} = parentID($dbh,
3679 (id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
3680 $loghash{entry} = $resultstr;
3681 _log($dbh, %loghash);
3682
3683 $dbh->commit;
3684 };
3685 if ($@) {
3686 my $msg = $@;
3687 eval { $dbh->rollback; };
3688 $resultstr = '';
3689 $errstr = $msg;
3690 return;
3691 }
3692 }
3693
3694 my ($status) = $dbh->selectrow_array("SELECT status FROM ".
3695 ($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
3696 undef, ($id) );
3697 return $status;
3698} # end zoneStatus()
3699
3700
3701## DNSDB::importAXFR
3702# Import a domain via AXFR
3703# Takes AXFR host, domain to transfer, group to put the domain in,
3704# and optionally:
3705# - active/inactive state flag (defaults to active)
3706# - overwrite-SOA flag (defaults to off)
3707# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
3708# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
3709# if status is OK, but WARN includes conditions that are not fatal but should
3710# really be reported.
3711sub importAXFR {
3712 my $dbh = shift;
3713 my $ifrom_in = shift;
3714 my $zone = shift;
3715 my $group = shift;
3716 my $status = shift || 1;
3717 my $rwsoa = shift || 0;
3718 my $rwns = shift || 0;
3719 my $merge = shift || 0; # do we attempt to merge A/AAAA and PTR records whenever possible?
3720 # do we overload this with the fixme below?
3721##fixme: add mode to delete&replace, merge+overwrite, merge new?
3722
3723 my $nrecs = 0;
3724 my $soaflag = 0;
3725 my $nsflag = 0;
3726 my $warnmsg = '';
3727 my $ifrom;
3728
3729 my $rev = 'n';
3730 my $code = 'OK';
3731 my $msg = 'foobar?';
3732
3733 # choke on possible bad setting in ifrom
3734 # IPv4 and v6, and valid hostnames!
3735 ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
3736 return ('FAIL', "Bad AXFR source host $ifrom")
3737 unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
3738
3739 my $errmsg;
3740
3741 my $zone_id;
3742 my $domain_id = 0;
3743 my $rdns_id = 0;
3744 my $cidr;
3745
3746# magic happens! detect if we're importing a domain or a reverse zone
3747# while we're at it, figure out what the CIDR netblock is (if we got a .arpa)
3748# or what the formal .arpa zone is (if we got a CIDR netblock)
3749# Handles sub-octet v4 zones in the format specified in the Cricket Book, 2nd Ed, p217-218
3750
3751 if ($zone =~ m{(?:\.arpa\.?|/\d+)$}) {
3752 # we seem to have a reverse zone
3753 $rev = 'y';
3754
3755 if ($zone =~ /\.arpa\.?$/) {
3756 # we have a formal reverse zone. call _zone2cidr and get the CIDR block.
3757 ($code,$msg) = _zone2cidr($zone);
3758 return ($code, $msg) if $code eq 'FAIL';
3759 $cidr = $msg;
3760 } elsif ($zone =~ m|^[\d.]+/\d+$|) {
3761 # v4 revzone, CIDR netblock
3762 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
3763 $zone = _ZONE($cidr, 'ZONE.in-addr.arpa', 'r', '.');
3764 } elsif ($zone =~ m|^[a-fA-F\d:]+/\d+$|) {
3765 # v6 revzone, CIDR netblock
3766 $cidr = NetAddr::IP->new($zone) or return ('FAIL',"$zone is not a valid CIDR block");
3767 return ('FAIL', "$zone is not a nibble-aligned block") if $cidr->masklen % 4 != 0;
3768 $zone = _ZONE($cidr, 'ZONE.ip6.arpa', 'r', '.');
3769 } else {
3770 # there is. no. else!
3771 return ('FAIL', "Unknown zone name format");
3772 }
3773
3774 # quick check to start to see if we've already got one
3775
3776 ($zone_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?",
3777 undef, ("$cidr"));
3778 $rdns_id = $zone_id;
3779 } else {
3780 # default to domain
3781 ($zone_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?",
3782 undef, ($zone));
3783 $domain_id = $zone_id;
3784 }
3785
3786 return ('FAIL', ($rev eq 'n' ? 'Domain' : 'Reverse zone')." already exists") if $zone_id;
3787
3788 # little local utility sub to swap $val and $host for revzone records.
3789 sub _revswap {
3790 my $rechost = shift;
3791 my $recdata = shift;
3792
3793 if ($rechost =~ /\.in-addr\.arpa\.?$/) {
3794 $rechost =~ s/\.in-addr\.arpa\.?$//;
3795 $rechost = join '.', reverse split /\./, $rechost;
3796 } else {
3797 $rechost =~ s/\.ip6\.arpa\.?$//;
3798 my @nibs = reverse split /\./, $rechost;
3799 $rechost = '';
3800 my $nc;
3801 foreach (@nibs) {
3802 $rechost.= $_;
3803 $rechost .= ":" if ++$nc % 4 == 0 && $nc < 32;
3804 }
3805 $rechost .= ":" if $nc < 32 && $rechost !~ /\*$/; # close netblock records?
3806##fixme: there's a case that ends up with a partial entry here:
3807# ip:add:re:ss::
3808# can't reproduce after letting it sit overnight after discovery. :(
3809#print "$rechost\n";
3810 # canonicalize with NetAddr::IP
3811 $rechost = NetAddr::IP->new($rechost)->addr unless $rechost =~ /\*$/;
3812 }
3813 return ($recdata,$rechost)
3814 }
3815
3816
3817 # Allow transactions, and raise an exception on errors so we can catch it later.
3818 # Use local to make sure these get "reset" properly on exiting this block
3819 local $dbh->{AutoCommit} = 0;
3820 local $dbh->{RaiseError} = 1;
3821
3822 my $sth;
3823 eval {
3824
3825 if ($rev eq 'n') {
3826##fixme: serial
3827 $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($zone,$group,$status) );
3828 # get domain id so we can do the records
3829 ($zone_id) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
3830 $domain_id = $zone_id;
3831 _log($dbh, (group_id => $group, domain_id => $domain_id,
3832 entry => "[Added ".($status ? 'active' : 'inactive')." domain $zone via AXFR]") );
3833 } else {
3834##fixme: serial
3835 $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($cidr,$group,$status) );
3836 # get revzone id so we can do the records
3837 ($zone_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
3838 $rdns_id = $zone_id;
3839 _log($dbh, (group_id => $group, rdns_id => $rdns_id,
3840 entry => "[Added ".($status ? 'active' : 'inactive')." reverse zone $cidr via AXFR]") );
3841 }
3842
3843## bizarre DBI<->Net::DNS interaction bug:
3844## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
3845## fixed, apparently I was doing *something* odd, but not certain what it was that
3846## caused a commit instead of barfing
3847
3848 my $res = Net::DNS::Resolver->new;
3849 $res->nameservers($ifrom);
3850 $res->axfr_start($zone)
3851 or die "Couldn't begin AXFR\n";
3852
3853 $sth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl)".
3854 " VALUES (?,?,?,?,?,?,?,?,?)");
3855
3856 # Stash info about sub-octet v4 revzones here so we don't have
3857 # to store the CNAMEs used to delegate a suboctet zone
3858 # $suboct{zone}{ns}[] -> array of nameservers
3859 # $suboct{zone}{cname}[] -> array of extant CNAMEs (Just In Case someone did something bizarre)
3860## commented pending actual use of this data. for now, we'll just
3861## auto-(re)create the CNAMEs in revzones on export
3862# my %suboct;
3863
3864 while (my $rr = $res->axfr_next()) {
3865
3866 my $val;
3867 my $distance = 0;
3868 my $weight = 0;
3869 my $port = 0;
3870 my $logfrag = '';
3871
3872 my $type = $rr->type;
3873 my $host = $rr->name;
3874 my $ttl = $rr->ttl;
3875
3876 $soaflag = 1 if $type eq 'SOA';
3877 $nsflag = 1 if $type eq 'NS';
3878
3879# "Primary" types:
3880# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
3881# maybe KEY
3882
3883# BIND supports:
3884# [standard]
3885# A AAAA CNAME MX NS PTR SOA TXT
3886# [variously experimental, obsolete, or obscure]
3887# HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) NULL WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
3888# ... if one can ever find the right magic to format them correctly
3889
3890# Net::DNS supports:
3891# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
3892# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
3893# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
3894
3895# nasty big ugly case-like thing here, since we have to do *some* different
3896# processing depending on the record. le sigh.
3897
3898##fixme: what record types other than TXT can/will have >255-byte payloads?
3899
3900 if ($type eq 'A') {
3901 $val = $rr->address;
3902 } elsif ($type eq 'NS') {
3903# hmm. should we warn here if subdomain NS'es are left alone?
3904 next if ($rwns && ($rr->name eq $zone));
3905 if ($rev eq 'y') {
3906 # revzones have records more or less reversed from forward zones.
3907 my ($tmpcode,$tmpmsg) = _zone2cidr($host);
3908 die "Error converting NS record: $tmpmsg" if $tmpcode eq 'FAIL'; # hmm. may not make sense...
3909 $val = "$tmpmsg";
3910 $host = $rr->nsdname;
3911 $logfrag = "Added record '$val $type $host', TTL $ttl";
3912# Tag and preserve. For now this is commented for a no-op, but we have Ideas for
3913# another custom storage type ("DELEGATE") that will use these subzone-delegation records
3914#if ($val ne "$cidr") {
3915# push @{$suboct{$val}{ns}}, $host;
3916#}
3917 } else {
3918 $val = $rr->nsdname;
3919 }
3920 $nsflag = 1;
3921 } elsif ($type eq 'CNAME') {
3922 if ($rev eq 'y') {
3923 # hmm. do we even want to bother with storing these at this level? Sub-octet delegation
3924 # by CNAME is essentially a record-publication hack, and we want to just represent the
3925 # "true" logical intentions as far down the stack as we can from the UI.
3926 ($host,$val) = _revswap($host,$rr->cname);
3927 $logfrag = "Added record '$val $type $host', TTL $ttl";
3928# Tag and preserve in case we want to commit them as-is later, but mostly we don't care.
3929# Commented pending actually doing something with possibly new type DELEGATE
3930#my $tmprev = $host;
3931#$tmprev =~ s/^\d+\.//;
3932#($code,$tmprev) = _zone2cidr($tmprev);
3933#push @{$suboct{"$tmprev"}{cname}}, $val;
3934 # Silently skip CNAMEs in revzones.
3935 next;
3936 } else {
3937 $val = $rr->cname;
3938 }
3939 } elsif ($type eq 'SOA') {
3940 next if $rwsoa;
3941 $host = $rr->rname.":".$rr->mname;
3942 $val = $rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum;
3943 $soaflag = 1;
3944 } elsif ($type eq 'PTR') {
3945 ($host,$val) = _revswap($host,$rr->ptrdname);
3946 $logfrag = "Added record '$val $type $host', TTL $ttl";
3947 # hmm. PTR records should not be in forward zones.
3948 } elsif ($type eq 'MX') {
3949 $val = $rr->exchange;
3950 $distance = $rr->preference;
3951 } elsif ($type eq 'TXT') {
3952##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
3953## but don't really seem enthusiastic about it.
3954#print "should use rdatastr:\n\t".$rr->rdatastr."\n or char_str_list:\n\t".join(' ',$rr->char_str_list())."\n";
3955# rdatastr returns a BIND-targetted logical string, including opening and closing quotes
3956# char_str_list returns a list of the individual string fragments in the record
3957# txtdata returns the more useful all-in-one form (since we want to push such protocol
3958# details as far down the stack as we can)
3959# NB: this may turn out to be more troublesome if we ever have need of >512-byte TXT records.
3960 if ($rev eq 'y') {
3961 ($host,$val) = _revswap($host,$rr->txtdata);
3962 $logfrag = "Added record '$val $type $host', TTL $ttl";
3963 } else {
3964 $val = $rr->txtdata;
3965 }
3966 } elsif ($type eq 'SPF') {
3967##fixme: and the same caveat here, since it is apparently a clone of ::TXT
3968 $val = $rr->txtdata;
3969 } elsif ($type eq 'AAAA') {
3970 $val = $rr->address;
3971 } elsif ($type eq 'SRV') {
3972 $val = $rr->target;
3973 $distance = $rr->priority;
3974 $weight = $rr->weight;
3975 $port = $rr->port;
3976 } elsif ($type eq 'KEY') {
3977 # we don't actually know what to do with these...
3978 $val = $rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname;
3979 } else {
3980 $val = $rr->rdatastr;
3981 # Finding a different record type is not fatal.... just problematic.
3982 # We may not be able to export it correctly.
3983 $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
3984 }
3985
3986 my $logentry = "[AXFR ".($rev eq 'n' ? $zone : $cidr)."] ";
3987
3988 if ($merge) {
3989 if ($rev eq 'n') {
3990 # importing a domain; we have A and AAAA records that could be merged with matching PTR records
3991 my $etype;
3992 my ($erdns,$erid,$ettl) = $dbh->selectrow_array("SELECT rdns_id,record_id,ttl FROM records ".
3993 "WHERE host=? AND val=? AND type=12",
3994 undef, ($host, $val) );
3995 if ($erid) {
3996 if ($type eq 'A') { # PTR -> A+PTR
3997 $etype = 65280;
3998 $logentry .= "Merged A record with existing PTR record '$host A+PTR $val', TTL $ettl";
3999 }
4000 if ($type eq 'AAAA') { # PTR -> AAAA+PTR
4001 $etype = 65281;
4002 $logentry .= "Merged AAAA record with existing PTR record '$host AAAA+PTR $val', TTL $ettl";
4003 }
4004 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4005 $dbh->do("UPDATE records SET domain_id=?,ttl=?,type=? WHERE record_id=?", undef,
4006 ($domain_id, $ettl, $etype, $erid));
4007 $nrecs++;
4008 _log($dbh, (group_id => $group, domain_id => $domain_id, rdns_id => $erdns, entry => $logentry) );
4009 next; # while axfr_next
4010 }
4011 } # $rev eq 'n'
4012 else {
4013 # importing a revzone, we have PTR records that could be merged with matching A/AAAA records
4014 my ($domid,$erid,$ettl,$etype) = $dbh->selectrow_array("SELECT domain_id,record_id,ttl,type FROM records ".
4015 "WHERE host=? AND val=? AND (type=1 OR type=28)",
4016 undef, ($host, $val) );
4017 if ($erid) {
4018 if ($etype == 1) { # A -> A+PTR
4019 $etype = 65280;
4020 $logentry .= "Merged PTR record with existing matching A record '$host A+PTR $val', TTL $ettl";
4021 }
4022 if ($etype == 28) { # AAAA -> AAAA+PTR
4023 $etype = 65281;
4024 $logentry .= "Merged PTR record with existing matching AAAA record '$host AAAA+PTR $val', TTL $ettl";
4025 }
4026 $ettl = ($ettl < $ttl ? $ettl : $ttl); # use lower TTL
4027 $dbh->do("UPDATE records SET rdns_id=?,ttl=?,type=? WHERE record_id=?", undef,
4028 ($rdns_id, $ettl, $etype, $erid));
4029 $nrecs++;
4030 _log($dbh, (group_id => $group, domain_id => $domid, rdns_id => $rdns_id, entry => $logentry) );
4031 next; # while axfr_next
4032 }
4033 } # $rev eq 'y'
4034 } # if $merge
4035
4036 # Insert the new record
4037 $sth->execute($domain_id, $rdns_id, $host, $reverse_typemap{$type}, $val,
4038 $distance, $weight, $port, $ttl);
4039
4040 $nrecs++;
4041
4042 if ($type eq 'SOA') {
4043 # also !$rwsoa, but if that's set, it should be impossible to get here.
4044 my @tmp1 = split /:/, $host;
4045 my @tmp2 = split /:/, $val;
4046 $logentry .= "Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
4047 "[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl";
4048 } elsif ($logfrag) {
4049 # special case for log entries we need to meddle with a little.
4050 $logentry .= $logfrag;
4051 } else {
4052 $logentry .= "Added record '$host $type";
4053 $logentry .= " [distance $distance]" if $type eq 'MX';
4054 $logentry .= " [priority $distance] [weight $weight] [port $port]" if $type eq 'SRV';
4055 $logentry .= " $val', TTL $ttl";
4056 }
4057 _log($dbh, (group_id => $group, domain_id => $domain_id, rdns_id => $rdns_id, entry => $logentry) );
4058
4059 } # while axfr_next
4060
4061# Detect and handle delegated subzones
4062# Placeholder for when we decide what to actually do with this, see previous comments in NS and CNAME handling.
4063#foreach (keys %suboct) {
4064# print "found ".($suboct{$_}{ns} ? @{$suboct{$_}{ns}} : '0')." NS records and ".
4065# ($suboct{$_}{cname} ? @{$suboct{$_}{cname}} : '0')." CNAMEs for $_\n";
4066#}
4067
4068 # Overwrite SOA record
4069 if ($rwsoa) {
4070 $soaflag = 1;
4071 my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4072 my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4073 $sthgetsoa->execute($group,$reverse_typemap{SOA});
4074 while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
4075 $host =~ s/DOMAIN/$zone/g;
4076 $val =~ s/DOMAIN/$zone/g;
4077 $sthputsoa->execute($zone_id,$host,$reverse_typemap{SOA},$val,$ttl);
4078 }
4079 }
4080
4081 # Overwrite NS records
4082 if ($rwns) {
4083 $nsflag = 1;
4084 my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
4085 my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
4086 $sthgetns->execute($group,$reverse_typemap{NS});
4087 while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
4088 $host =~ s/DOMAIN/$zone/g;
4089 $val =~ s/DOMAIN/$zone/g;
4090 $sthputns->execute($zone_id,$host,$reverse_typemap{NS},$val,$ttl);
4091 }
4092 }
4093
4094 die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
4095 die "Bad zone: No SOA record!\n" if !$soaflag;
4096 die "Bad zone: No NS records!\n" if !$nsflag;
4097
4098 $dbh->commit;
4099
4100 };
4101
4102 if ($@) {
4103 my $msg = $@;
4104 eval { $dbh->rollback; };
4105 return ('FAIL',$msg." $warnmsg");
4106 } else {
4107 return ('WARN', $warnmsg) if $warnmsg;
4108 return ('OK',"Imported OK");
4109 }
4110
4111 # it should be impossible to get here.
4112 return ('WARN',"OOOK!");
4113} # end importAXFR()
4114
4115
4116## DNSDB::importBIND()
4117sub importBIND {
4118} # end importBIND()
4119
4120
4121## DNSDB::import_tinydns()
4122sub import_tinydns {
4123} # end import_tinydns()
4124
4125
4126## DNSDB::export()
4127# Export the DNS database, or a part of it
4128# Takes database handle, export type, optional arguments depending on type
4129# Writes zone data to targets as appropriate for type
4130sub export {
4131 my $dbh = shift;
4132 my $target = shift;
4133
4134 if ($target eq 'tiny') {
4135 __export_tiny($dbh,@_);
4136 }
4137# elsif ($target eq 'foo') {
4138# __export_foo($dbh,@_);
4139#}
4140# etc
4141
4142} # end export()
4143
4144
4145## DNSDB::__export_tiny
4146# Internal sub to implement tinyDNS (compatible) export
4147# Takes database handle, filehandle to write export to, optional argument(s)
4148# to determine which data gets exported
4149sub __export_tiny {
4150 my $dbh = shift;
4151 my $datafile = shift;
4152
4153##fixme: slurp up further options to specify particular zone(s) to export
4154
4155##fixme: fail if $datafile isn't an open, writable file
4156
4157 # easy case - export all evarything
4158 # not-so-easy case - export item(s) specified
4159 # todo: figure out what kind of list we use to export items
4160
4161# raw packet in unknown format: first byte indicates length
4162# of remaining data, allows up to 255 raw bytes
4163
4164 # tracking hash so we don't double-export A+PTR or AAAA+PTR records.
4165 my %recflags;
4166
4167 my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
4168 my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id ".
4169 "FROM records WHERE domain_id=? AND NOT type=65283");
4170 $domsth->execute();
4171 while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
4172 $recsth->execute($domid);
4173 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid) = $recsth->fetchrow_array) {
4174 next if $recflags{$recid};
4175##fixme: need to store location in the db, and retrieve it here.
4176# temporarily hardcoded to empty so we can include it further down.
4177 my $loc = '';
4178
4179##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4180# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4181# timestamps are TAI64
4182# ~~ 2^62 + time()
4183 my $stamp = '';
4184
4185 _printrec_tiny($datafile,'n',\%recflags,$dom,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
4186 $recflags{$recid} = 1;
4187
4188 } # while ($recsth)
4189 } # while ($domsth)
4190
4191 my $revsth = $dbh->prepare("SELECT rdns_id,revnet,status FROM revzones WHERE status=1 ".
4192 "ORDER BY masklen(revnet) DESC");
4193 $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id ".
4194 "FROM records WHERE rdns_id=? AND type=6 UNION ".
4195 "(SELECT host,type,val,distance,weight,port,ttl,record_id ".
4196 "FROM records WHERE rdns_id=? AND not type=6 ".
4197 "ORDER BY masklen(CAST(val AS inet)) DESC, CAST(val AS inet))");
4198 $revsth->execute();
4199 while (my ($revid,$revzone,$revstat) = $revsth->fetchrow_array) {
4200 $recsth->execute($revid, $revid);
4201 while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$recid) = $recsth->fetchrow_array) {
4202 next if $recflags{$recid};
4203##fixme: need to store location in the db, and retrieve it here.
4204# temporarily hardcoded to empty so we can include it further down.
4205 my $loc = '';
4206
4207##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
4208# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
4209# timestamps are TAI64
4210# ~~ 2^62 + time()
4211 my $stamp = '';
4212
4213 _printrec_tiny($datafile,'y',\%recflags,$revzone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
4214 $recflags{$recid} = 1;
4215
4216 } # while ($recsth)
4217 } # while ($domsth)
4218
4219} # end __export_tiny()
4220
4221
4222# Utility sub for __export_tiny above
4223sub _printrec_tiny {
4224 my ($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp) = @_;
4225
4226 ## Convert a bare number into an octal-coded pair of octets.
4227 # Take optional arg to indicate a decimal or hex input. Defaults to hex.
4228 sub octalize {
4229 my $tmp = shift;
4230 my $srctype = shift || 'h'; # default assumes hex string
4231 $tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
4232 $tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
4233 my @o = ($tmp =~ /^(..)(..)$/); # split into octets
4234 return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
4235 }
4236
4237## WARNING: This works to export even the whole Internet's worth of IP space...
4238## if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
4239## A /16 took ~3 seconds with a handful of separate records; adding a /8 pushed export time out to ~13m:40s
4240## 0/0 is estimated to take ~54 hours and ~256G of disk
4241## RAM usage depends on how many non-template entries you have in the set.
4242## This should probably be done on record addition rather than export; large blocks may need to be done in a
4243## forked process
4244 sub __publish_subnet {
4245 my $sub = shift;
4246 my $recflags = shift;
4247 my $hpat = shift;
4248 my $fh = shift;
4249 my $ttl = shift;
4250 my $stamp = shift;
4251 my $loc = shift;
4252 my $ptronly = shift || 0;
4253
4254 my $iplist = $sub->splitref(32);
4255 foreach (@$iplist) {
4256 my $ip = $_->addr;
4257 # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
4258 next if $ip =~ /\.(0|255)$/;
4259 next if $$recflags{$ip};
4260 $$recflags{$ip}++;
4261 my $rec = $hpat; # start fresh with the template for each IP
4262 _template4_expand(\$rec, $ip);
4263 print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
4264 ":$ttl:$stamp:$loc\n";
4265 }
4266 }
4267
4268##fixme? append . to all host/val hostnames
4269 if ($typemap{$type} eq 'SOA') {
4270
4271 # host contains pri-ns:responsible
4272 # val is abused to contain refresh:retry:expire:minttl
4273##fixme: "manual" serial vs tinydns-autoserial
4274 # let's be explicit about abusing $host and $val
4275 my ($email, $primary) = (split /:/, $host)[0,1];
4276 my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
4277 if ($revrec eq 'y') {
4278##fixme: have to publish SOA records for each v4 /24 in sub-/16, and each /16 in sub-/8
4279# what about v6?
4280# -> only need SOA for local chunks offset from reverse delegation boundaries, so v6 is fine
4281 $zone = NetAddr::IP->new($zone);
4282 # handle split-n-multiply SOA for off-octet (8 < mask < 16) or (16 < mask < 24) v4 zones
4283 if (!$zone->{isv6} && ($zone->masklen < 24) && ($zone->masklen % 8 != 0)) {
4284 foreach my $szone ($zone->split($zone->masklen + (8 - $zone->masklen % 8))) {
4285 $szone = _ZONE($szone, 'ZONE.in-addr.arpa', 'r', '.');
4286 print $datafile "Z$szone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
4287 }
4288 return; # skips "default" bits just below
4289 }
4290 $zone = _ZONE($zone, 'ZONE', 'r', '.').($zone->{isv6} ? '.ip6.arpa' : '.in-addr.arpa');
4291 }
4292 print $datafile "Z$zone:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
4293
4294 } elsif ($typemap{$type} eq 'A') {
4295
4296 print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
4297
4298 } elsif ($typemap{$type} eq 'NS') {
4299
4300 if ($revrec eq 'y') {
4301 $val = NetAddr::IP->new($val);
4302 print $datafile '&'._ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
4303 "::$host:$ttl:$stamp:$loc\n";
4304 } else {
4305 print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
4306 }
4307
4308 } elsif ($typemap{$type} eq 'AAAA') {
4309
4310 print $datafile ":$host:28:";
4311 my $altgrp = 0;
4312 my @altconv;
4313 # Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
4314 foreach (split /:/, $val) {
4315 if (/^$/) {
4316 # flag blank entry; this is a series of 0's of (currently) unknown length
4317 $altconv[$altgrp++] = 's';
4318 } else {
4319 # call sub to convert 1-4 hex digits to 2 string-rep octal bytes
4320 $altconv[$altgrp++] = octalize($_)
4321 }
4322 }
4323 foreach my $octet (@altconv) {
4324 # if not 's', output
4325 print $datafile $octet unless $octet =~ /^s$/;
4326 # if 's', output (9-array length)x literal '\000\000'
4327 print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
4328 }
4329 print $datafile ":$ttl:$stamp:$loc\n";
4330
4331 } elsif ($typemap{$type} eq 'MX') {
4332
4333 print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
4334
4335 } elsif ($typemap{$type} eq 'TXT') {
4336
4337##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
4338 $val =~ s/:/\\072/g; # may need to replace other symbols
4339 print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
4340
4341# by-hand TXT
4342#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
4343#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
4344#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
4345
4346#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
4347#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
4348
4349# very long TXT record as brought in by axfr-get
4350# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
4351# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
4352#:longtxt.deepnet.cx:16:
4353#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
4354#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
4355#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
4356#:3600
4357
4358 } elsif ($typemap{$type} eq 'CNAME') {
4359
4360 print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
4361
4362 } elsif ($typemap{$type} eq 'SRV') {
4363
4364 # data is two-byte values for priority, weight, port, in that order,
4365 # followed by length/string data
4366
4367 print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
4368
4369 $val .= '.' if $val !~ /\.$/;
4370 foreach (split /\./, $val) {
4371 printf $datafile "\\%0.3o%s", length($_), $_;
4372 }
4373 print $datafile "\\000:$ttl:$stamp:$loc\n";
4374
4375 } elsif ($typemap{$type} eq 'RP') {
4376
4377 # RP consists of two mostly free-form strings.
4378 # The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
4379 # The second is the "hostname" of a TXT record with more info.
4380 print $datafile ":$host:17:";
4381 my ($who,$what) = split /\s/, $val;
4382 foreach (split /\./, $who) {
4383 printf $datafile "\\%0.3o%s", length($_), $_;
4384 }
4385 print $datafile '\000';
4386 foreach (split /\./, $what) {
4387 printf $datafile "\\%0.3o%s", length($_), $_;
4388 }
4389 print $datafile "\\000:$ttl:$stamp:$loc\n";
4390
4391 } elsif ($typemap{$type} eq 'PTR') {
4392
4393 $zone = NetAddr::IP->new($zone);
4394 $$recflags{$val}++;
4395 if (!$zone->{isv6} && $zone->masklen > 24) {
4396 ($val) = ($val =~ /\.(\d+)$/);
4397 print $datafile "^$val."._ZONE($zone, 'ZONE', 'r', '.').'.in-addr.arpa'.
4398 ":$host:ttl:$stamp:$loc\n";
4399 } else {
4400 $val = NetAddr::IP->new($val);
4401 print $datafile "^".
4402 _ZONE($val, 'ZONE', 'r', '.').($val->{isv6} ? '.ip6.arpa' : '.in-addr.arpa').
4403 ":$host:$ttl:$stamp:$loc\n";
4404 }
4405
4406 } elsif ($type == 65280) { # A+PTR
4407
4408 $$recflags{$val}++;
4409 print $datafile "=$host:$val:$ttl:$stamp:$loc\n";
4410
4411 } elsif ($type == 65281) { # AAAA+PTR
4412
4413#$$recflags{$val}++;
4414 # treat these as two separate records. since tinydns doesn't have
4415 # a native combined type, we have to create them separately anyway.
4416 if ($revrec eq 'n') {
4417 $type = 28;
4418 } else {
4419 $type = 12;
4420 }
4421 _printrec_tiny($datafile,$revrec,$recflags,$zone,$host,$type,$val,$dist,$weight,$port,$ttl,$loc,$stamp);
4422##fixme: add a config flag to indicate use of the patch from http://www.fefe.de/dns/
4423# type 6 is for AAAA+PTR, type 3 is for AAAA
4424
4425 } elsif ($type == 65282) { # PTR template
4426
4427 # only useful for v4 with standard DNS software, since this expands all
4428 # IPs in $zone (or possibly $val?) with autogenerated records
4429 $val = NetAddr::IP->new($val);
4430 return if $val->{isv6};
4431
4432 if ($val->masklen <= 16) {
4433 foreach my $sub ($val->split(16)) {
4434 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
4435 }
4436 } else {
4437 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
4438 }
4439
4440 } elsif ($type == 65283) { # A+PTR template
4441
4442 $val = NetAddr::IP->new($val);
4443 # Just In Case. An A+PTR should be impossible to add to a v6 revzone via API.
4444 return if $val->{isv6};
4445
4446 if ($val->masklen <= 16) {
4447 foreach my $sub ($val->split(16)) {
4448 __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
4449 }
4450 } else {
4451 __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
4452 }
4453
4454 } elsif ($type == 65284) { # AAAA+PTR template
4455 # Stub for completeness. Could be exported to DNS software that supports
4456 # some degree of internal automagic in generic-record-creation
4457 # (eg http://search.cpan.org/dist/AllKnowingDNS/ )
4458
4459 } else {
4460 # raw record. we don't know what's in here, so we ASS-U-ME the user has
4461 # put it in correctly, since either the user is messing directly with the
4462 # database, or the record was imported via AXFR
4463 # <split by char>
4464 # convert anything not a-zA-Z0-9.- to octal coding
4465
4466##fixme: add flag to export "unknown" record types - note we'll probably end up
4467# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
4468 #print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
4469
4470 } # record type if-else
4471
4472} # end _printrec_tiny()
4473
4474
4475## DNSDB::mailNotify()
4476# Sends notification mail to recipients regarding a DNSDB operation
4477sub mailNotify {
4478 my $dbh = shift;
4479 my ($subj,$message) = @_;
4480
4481 return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
4482
4483 my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
4484
4485 my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
4486
4487 $mailer->mail($mailsender);
4488 $mailer->to($config{mailnotify});
4489 $mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
4490 "To: <$config{mailnotify}>\n",
4491 "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
4492 "Subject: $subj\n",
4493 "X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
4494 "Organization: $config{orgname}\n",
4495 "\n$message\n");
4496 $mailer->quit;
4497}
4498
4499# shut Perl up
45001;
Note: See TracBrowser for help on using the repository browser.