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source: trunk/DNSDB.pm@ 294

Last change on this file since 294 was 294, checked in by Kris Deugau, 12 years ago

/trunk

"Move action logging for change group default permissions" mutated
into "Move action logging for (change group default permissions),
(add user), (update user), (update user permissions)". See #35.

Property svn:keywords set to Date Rev Author Id

File size: 118.4 KB

Line
1	# dns/trunk/DNSDB.pm
2	# Abstraction functions for DNS administration
3	##
4	# $Id: DNSDB.pm 294 2012-03-29 17:22:59Z kdeugau $
5	# Copyright 2008-2011 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
21	package DNSDB;
22
23	use strict;
24	use warnings;
25	use Exporter;
26	use DBI;
27	use Net::DNS;
28	use Crypt::PasswdMD5;
29	use Net::SMTP;
30	use NetAddr::IP qw(:lower);
31	use POSIX;
32	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
33
34	$VERSION = 0.1; ##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	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
45	&getSOA &updateSOA &getRecLine &getDomRecs &getRecCount
46	&addRec &updateRec &delRec
47	&getTypelist
48	&parentID
49	&isParent
50	&zoneStatus &importAXFR
51	&export
52	&mailNotify
53	%typemap %reverse_typemap %config
54	%permissions @permtypes $permlist
55	);
56
57	@EXPORT = (); # Export nothing by default.
58	%EXPORT_TAGS = ( ALL => [qw(
59	&initGlobals &login &initActionLog
60	&initPermissions &getPermissions &changePermissions &comparePermissions
61	&changeGroup
62	&loadConfig &connectDB &finish
63	&addDomain &delZone &domainName &revName &domainID &revID &addRDNS
64	&getZoneCount &getZoneList
65	&addGroup &delGroup &getChildren &groupName
66	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
67	&getSOA &updateSOA &getRecLine &getDomRecs &getRecCount
68	&addRec &updateRec &delRec
69	&getTypelist
70	&parentID
71	&isParent
72	&zoneStatus &importAXFR
73	&export
74	&mailNotify
75	%typemap %reverse_typemap %config
76	%permissions @permtypes $permlist
77	)]
78	);
79
80	our $group = 1;
81	our $errstr = '';
82	our $resultstr = '';
83
84	# Halfway sane defaults for SOA, TTL, etc.
85	# serial defaults to 0 for convenience.
86	# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
87	our %def = qw (
88	contact hostmaster.DOMAIN
89	prins ns1.myserver.com
90	serial 0
91	soattl 86400
92	refresh 10800
93	retry 3600
94	expire 604800
95	minttl 10800
96	ttl 10800
97	);
98
99	# Arguably defined wholly in the db, but little reason to change without supporting code changes
100	our @permtypes = qw (
101	group_edit group_create group_delete
102	user_edit user_create user_delete
103	domain_edit domain_create domain_delete
104	record_edit record_create record_delete
105	self_edit admin
106	);
107	our $permlist = join(',',@permtypes);
108
109	# DNS record type map and reverse map.
110	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
111	our %typemap;
112	our %reverse_typemap;
113
114	our %permissions;
115
116	# Prepopulate a basic config. Note some of these will cause errors if left unset.
117	# note: add appropriate stanzas in loadConfig to parse these
118	our %config = (
119	# Database connection info
120	dbname => 'dnsdb',
121	dbuser => 'dnsdb',
122	dbpass => 'secret',
123	dbhost => '',
124
125	# Email notice settings
126	mailhost => 'smtp.example.com',
127	mailnotify => 'dnsdb@example.com', # to
128	mailsender => 'dnsdb@example.com', # from
129	mailname => 'DNS Administration',
130	orgname => 'Example Corp',
131	domain => 'example.com',
132
133	# Template directory
134	templatedir => 'templates/',
135	# fmeh. this is a real web path, not a logical internal one. hm..
136	# cssdir => 'templates/',
137	sessiondir => 'session/',
138
139	# Session params
140	timeout => '3600', # 1 hour default
141
142	# Other miscellanea
143	log_failures => 1, # log all evarthing by default
144	perpage => 15,
145	);
146
147	## (Semi)private variables
148
149	# Hash of functions for validating record types. Filled in initGlobals() since
150	# it relies on visibility flags from the rectypes table in the DB
151	my %validators;
152
153	# Username, full name, ID - mainly for logging
154	my %userdata;
155
156
157	##
158	## utility functions
159	##
160
161	## DNSDB::_rectable()
162	# Takes default+rdns flags, returns appropriate table name
163	sub _rectable {
164	my $def = shift;
165	my $rev = shift;
166
167	return 'records' if $def ne 'y';
168	return 'default_records' if $rev ne 'y';
169	return 'default_rev_records';
170	} # end _rectable()
171
172	## DNSDB::_recparent()
173	# Takes default+rdns flags, returns appropriate parent-id column name
174	sub _recparent {
175	my $def = shift;
176	my $rev = shift;
177
178	return 'group_id' if $def eq 'y';
179	return 'rdns_id' if $rev eq 'y';
180	return 'domain_id';
181	} # end _recparent()
182
183	## DNSDB::_ipparent()
184	# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
185	# Takes a database handle, default and reverse flags, IP (fragment) to check, parent zone ID,
186	# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
187	# database insertion)
188	sub _ipparent {
189	my $dbh = shift;
190	my $defrec = shift;
191	my $revrec = shift;
192	my $val = shift;
193	my $id = shift;
194	my $addr = shift;
195
196	return if $revrec ne 'y'; # this sub not useful in forward zones
197
198	$$addr = NetAddr::IP->new($$val); #necessary?
199
200	# subsub to split, reverse, and overlay an IP fragment on a netblock
201	sub __rev_overlay {
202	my $splitme = shift; # ':' or '.', m'lud?
203	my $parnet = shift;
204	my $val = shift;
205	my $addr = shift;
206
207	my $joinme = $splitme;
208	$splitme = '\.' if $splitme eq '.';
209	my @working = reverse(split($splitme, $parnet->addr));
210	my @parts = reverse(split($splitme, $$val));
211	for (my $i = 0; $i <= $#parts; $i++) {
212	$working[$i] = $parts[$i];
213	}
214	my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
215	return 0 unless $checkme->within($parnet);
216	$$addr = $checkme; # force "correct" IP to be recorded.
217	return 1;
218	}
219
220	my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
221	my $parnet = NetAddr::IP->new($parstr);
222
223	# Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
224	return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
225	return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
226
227	if ($$addr && $$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/) {
228	# the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address.
229	# the rest we have to restructure before fiddling. sigh
230	return 1 if $$addr->within($parnet);
231	} else {
232	# We don't have a complete IP in $$val (yet)
233	if ($parnet->addr =~ /:/) {
234	$$val =~ s/^:+//; # gotta strip'em all...
235	return __rev_overlay(':', $parnet, $val, $addr);
236	}
237	if ($parnet->addr =~ /\./) {
238	$$val =~ s/^\.+//;
239	return __rev_overlay('.', $parnet, $val, $addr);
240	}
241	# should be impossible to get here...
242	}
243	# ... and here.
244	# can't do nuttin' in forward zones
245	} # end _ipparent()
246
247	## DNSDB::_hostparent()
248	# A little different than _ipparent above; this tries to find the parent zone of a hostname
249	# Takes a database handle and hostname.
250	# Returns the domain ID of the parent domain if one was found.
251	sub _hostparent {
252	my $dbh = shift;
253	my $hname = shift;
254
255	my @hostbits = split /\./, $hname;
256	my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE domain = ? GROUP BY domain_id");
257	foreach (@hostbits) {
258	$sth->execute($hname);
259	my ($found, $parid) = $sth->fetchrow_array;
260	if ($found) {
261	return $parid;
262	}
263	$hname =~ s/^$_\.//;
264	}
265	} # end _hostparent()
266
267	## DNSDB::_log()
268	# Log an action
269	# Takes a database handle and log entry hash containing at least:
270	# group_id, log entry
271	# and optionally one or more of:
272	# domain_id, rdns_id
273	# The %userdata hash provides the user ID, username, and fullname
274	sub _log {
275	my $dbh = shift;
276
277	my %args = @_;
278
279	$args{rdns_id} = 0 if !$args{rdns_id};
280	$args{domain_id} = 0 if !$args{domain_id};
281
282	##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
283	# if ($config{log_channel} eq 'sql') {
284	$dbh->do("INSERT INTO log (domain_id,rdns_id,group_id,entry,user_id,email,name) VALUES (?,?,?,?,?,?,?)",
285	undef,
286	($args{domain_id}, $args{rdns_id}, $args{group_id}, $args{entry},
287	$userdata{userid}, $userdata{username}, $userdata{fullname}) );
288	# } elsif ($config{log_channel} eq 'file') {
289	# } elsif ($config{log_channel} eq 'syslog') {
290	# }
291	} # end _log
292
293
294	##
295	## Record validation subs.
296	##
297
298	## All of these subs take substantially the same arguments:
299	# a database handle
300	# a hash containing at least the following keys:
301	# - defrec (default/live flag)
302	# - revrec (forward/reverse flag)
303	# - id (parent entity ID)
304	# - host (hostname)
305	# - rectype
306	# - val (IP, hostname [CNAME/MX/SRV] or text)
307	# - addr (NetAddr::IP object from val. May be undef.)
308	# MX and SRV record validation also expect distance, and SRV records expect weight and port as well.
309	# host, rectype, and addr should be references as these may be modified in validation
310
311	# A record
312	sub _validate_1 {
313	my $dbh = shift;
314
315	my %args = @_;
316
317	return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
318
319	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
320	# or the intended parent domain for live records.
321	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
322	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
323
324	# Check IP is well-formed, and that it's a v4 address
325	# Fail on "compact" IPv4 variants, because they are not consistent and predictable.
326	return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
327	unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
328	return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
329	unless $args{addr} && !$args{addr}->{isv6};
330	# coerce IP/value to normalized form for storage
331	${$args{val}} = $args{addr}->addr;
332
333	return ('OK','OK');
334	} # done A record
335
336	# NS record
337	sub _validate_2 {
338	my $dbh = shift;
339
340	my %args = @_;
341
342	# Coerce the hostname to "DOMAIN" for forward default records, "ZONE" for reverse default records,
343	# or the intended parent zone for live records.
344	##fixme: allow for delegating <subdomain>.DOMAIN?
345	if ($args{revrec} eq 'y') {
346	my $pname = ($args{defrec} eq 'y' ? 'ZONE' : revName($dbh,$args{id}));
347	${$args{host}} = $pname if ${$args{host}} ne $pname;
348	} else {
349	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
350	${$args{host}} = $pname if ${$args{host}} ne $pname;
351	}
352
353	# Let this lie for now. Needs more magic.
354	# # Check IP is well-formed, and that it's a v4 address
355	# return ('FAIL',"A record must be a valid IPv4 address")
356	# unless $addr && !$addr->{isv6};
357	# # coerce IP/value to normalized form for storage
358	# $$val = $addr->addr;
359
360	return ('OK','OK');
361	} # done NS record
362
363	# CNAME record
364	sub _validate_5 {
365	my $dbh = shift;
366
367	my %args = @_;
368
369	# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
370	# This is fundamentally a messy operation and should really just be taken care of by the
371	# export process, not manual maintenance of the necessary records.
372	return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
373
374	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
375	# or the intended parent domain for live records.
376	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
377	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
378
379	return ('OK','OK');
380	} # done CNAME record
381
382	# SOA record
383	sub _validate_6 {
384	# Smart monkeys won't stick their fingers in here; we have
385	# separate dedicated routines to deal with SOA records.
386	return ('OK','OK');
387	} # done SOA record
388
389	# PTR record
390	sub _validate_12 {
391	my $dbh = shift;
392
393	my %args = @_;
394
395	if ($args{revrec} eq 'y') {
396	if ($args{defrec} eq 'n') {
397	return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
398	unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
399	${$args{val}} = $args{addr}->addr;
400	} else {
401	if (${$args{val}} =~ /\./) {
402	# looks like a v4 or fragment
403	if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
404	# woo! a complete IP! validate it and normalize, or fail.
405	$args{addr} = NetAddr::IP->new(${$args{val}})
406	or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
407	${$args{val}} = $args{addr}->addr;
408	} else {
409	${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
410	}
411	} elsif (${$args{val}} =~ /[a-f:]/) {
412	# looks like a v6 or fragment
413	${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
414	if ($args{addr}) {
415	if ($args{addr}->addr =~ /^0/) {
416	${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
417	} else {
418	${$args{val}} = $args{addr}->addr;
419	}
420	}
421	} else {
422	# bare number (probably). These could be v4 or v6, so we'll
423	# expand on these on creation of a reverse zone.
424	${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
425	}
426	${$args{host}} =~ s/\.*$/\.$config{domain}/ if ${$args{host}} !~ /(?:$config{domain}\|ADMINDOMAIN)$/;
427	}
428
429	# Multiple PTR records do NOT generally do what most people believe they do,
430	# and tend to fail in the most awkward way possible. Check and warn.
431	# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
432
433	my @checkvals = (${$args{val}});
434	if (${$args{val}} =~ /,/) {
435	# push . and :: variants into checkvals if val has ,
436	my $tmp;
437	($tmp = ${$args{val}}) =~ s/,/./;
438	push @checkvals, $tmp;
439	($tmp = ${$args{val}}) =~ s/,/::/;
440	push @checkvals, $tmp;
441	}
442	my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
443	foreach my $checkme (@checkvals) {
444	if ($args{update}) {
445	# Record update. There should usually be an existing PTR (the record being updated)
446	my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
447	" WHERE val = ?", undef, ($checkme)) };
448	return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
449	if @ptrs && (!grep /^$args{update}$/, @ptrs);
450	} else {
451	# New record. Always warn if a PTR exists
452	my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
453	" WHERE val = ?", undef, ($checkme));
454	return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
455	if $ptrcount;
456	}
457	}
458
459	} else {
460	# Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
461	# Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
462	# PTR records on export
463	return ('FAIL',"Forward zones cannot contain PTR records");
464	}
465
466	return ('OK','OK');
467	} # done PTR record
468
469	# MX record
470	sub _validate_15 {
471	my $dbh = shift;
472
473	my %args = @_;
474
475	# Not absolutely true but WTF use is an MX record for a reverse zone?
476	return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
477
478	return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
479	${$args{dist}} =~ s/\s*//g;
480	return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
481
482	${$args{fields}} = "distance,";
483	push @{$args{vallist}}, ${$args{dist}};
484
485	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
486	# or the intended parent domain for live records.
487	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
488	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
489
490	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
491	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
492	# if ($val =~ /^\s[\da-f:.]+\s$/) {
493	# return ('FAIL',"$val is not a valid IP address") if !$addr;
494	# }
495	# }
496
497	return ('OK','OK');
498	} # done MX record
499
500	# TXT record
501	sub _validate_16 {
502	# Could arguably put a WARN return here on very long (>512) records
503	return ('OK','OK');
504	} # done TXT record
505
506	# RP record
507	sub _validate_17 {
508	# Probably have to validate these some day
509	return ('OK','OK');
510	} # done RP record
511
512	# AAAA record
513	sub _validate_28 {
514	my $dbh = shift;
515
516	my %args = @_;
517
518	return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
519
520	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
521	# or the intended parent domain for live records.
522	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
523	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
524
525	# Check IP is well-formed, and that it's a v6 address
526	return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
527	unless $args{addr} && $args{addr}->{isv6};
528	# coerce IP/value to normalized form for storage
529	${$args{val}} = $args{addr}->addr;
530
531	return ('OK','OK');
532	} # done AAAA record
533
534	# SRV record
535	sub _validate_33 {
536	my $dbh = shift;
537
538	my %args = @_;
539
540	# Not absolutely true but WTF use is an SRV record for a reverse zone?
541	return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
542
543	return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
544	${$args{dist}} =~ s/\s*//g;
545	return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
546
547	return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
548	unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
549	return ('FAIL',"Port and weight are required for SRV records")
550	unless defined(${$args{weight}}) && defined(${$args{port}});
551	${$args{weight}} =~ s/\s*//g;
552	${$args{port}} =~ s/\s*//g;
553
554	return ('FAIL',"Port and weight are required, and must be numeric")
555	unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
556
557	${$args{fields}} = "distance,weight,port,";
558	push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
559
560	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
561	# or the intended parent domain for live records.
562	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
563	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
564
565	return ('OK','OK');
566	} # done SRV record
567
568	# Now the custom types
569
570	# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
571	sub _validate_65280 {
572	my $dbh = shift;
573
574	my %args = @_;
575
576	my $code = 'OK';
577	my $msg = 'OK';
578
579	if ($args{defrec} eq 'n') {
580	# live record; revrec determines whether we validate the PTR or A component first.
581
582	if ($args{revrec} eq 'y') {
583	($code,$msg) = _validate_12($dbh, %args);
584	return ($code,$msg) if $code eq 'FAIL';
585
586	# Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
587	if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
588	my $addmsg = "Record ".($args{update} ? 'updated' : 'added').
589	" as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
590	$msg .= "\n$addmsg" if $code eq 'WARN';
591	$msg = $addmsg if $code eq 'OK';
592	${$args{rectype}} = $reverse_typemap{PTR};
593	return ('WARN', $msg);
594	}
595
596	# Add domain ID to field list and values
597	${$args{fields}} .= "domain_id,";
598	push @{$args{vallist}}, ${$args{domid}};
599
600	} else {
601	($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
602	($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
603	return ($code,$msg) if $code eq 'FAIL';
604
605	# Check if the requested reverse zone exists - note, an IP fragment won't
606	# work here since we don't know which parent to put it in.
607	# ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
608	my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
609	" ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
610	if (!$revid) {
611	$msg = "Record ".($args{update} ? 'updated' : 'added')." as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
612	" instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
613	${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
614	return ('WARN', $msg);
615	}
616
617	# Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
618	# by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
619	if ($args{update}) {
620	# Record update. There should usually be an existing PTR (the record being updated)
621	my @ptrs = @{ $dbh->selectcol_arrayref("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
622	" WHERE val = ?", undef, (${$args{val}})) };
623	if (@ptrs && (!grep /^$args{update}$/, @ptrs)) {
624	$msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
625	$code = 'WARN';
626	}
627	} else {
628	# New record. Always warn if a PTR exists
629	my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
630	" WHERE val = ?", undef, (${$args{val}}));
631	$msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want"
632	if $ptrcount;
633	$code = 'WARN' if $ptrcount;
634	}
635
636	# my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
637	# " WHERE val = ?", undef, ${$args{val}});
638	# if ($ptrcount) {
639	# my $curid = $dbh->selectrow_array("SELECT record_id FROM "._rectable($args{defrec},$args{revrec}).
640	# " WHERE val = ?
641	# $msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
642	# $code = 'WARN';
643	# }
644
645	${$args{fields}} .= "rdns_id,";
646	push @{$args{vallist}}, $revid;
647	}
648
649	} else { # defrec eq 'y'
650	if ($args{revrec} eq 'y') {
651	($code,$msg) = _validate_12($dbh, %args);
652	return ($code,$msg) if $code eq 'FAIL';
653	if (${$args{rectype}} == 65280) {
654	return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
655	if ${$args{val}} =~ /:/;
656	${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
657	} elsif (${$args{rectype}} == 65281) {
658	return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
659	if ${$args{val}} =~ /\./;
660	${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
661	}
662	} else {
663	# This is easy. I also can't see a real use-case for A/AAAA+PTR in all forward
664	# domains, since you wouldn't be able to substitute both domain and reverse zone
665	# sanely, and you'd end up with guaranteed over-replicated PTR records that would
666	# confuse the hell out of pretty much anything that uses them.
667	##fixme: make this a config flag?
668	return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
669	}
670	}
671
672	return ($code, $msg);
673	} # done A+PTR record
674
675	# AAAA+PTR record
676	# A+PTR above has been magicked to handle AAAA+PTR as well.
677	sub _validate_65281 {
678	return _validate_65280(@_);
679	} # done AAAA+PTR record
680
681	# PTR template record
682	sub _validate_65282 {
683	return ('OK','OK');
684	} # done PTR template record
685
686	# A+PTR template record
687	sub _validate_65283 {
688	return ('OK','OK');
689	} # done AAAA+PTR template record
690
691	# AAAA+PTR template record
692	sub _validate_65284 {
693	return ('OK','OK');
694	} # done AAAA+PTR template record
695
696
697	##
698	## Record data substitution subs
699	##
700
701	# Replace ZONE in hostname
702	sub _ZONE {
703	my $zone = shift;
704	my $string = shift;
705	my $fr = shift \|\| 'f'; # flag for forward/reverse order? nb: ignored for IP
706
707	my $prefix = $zone->network->addr; # Just In Case someone managed to slip in
708	# a funky subnet that had host bits set.
709
710	$string =~ s/,/./ if !$zone->{isv6};
711	$string =~ s/,/::/ if $zone->{isv6};
712
713	# if ($zone->{isv6} && ($zone->masklen % 4) != 0) {
714	# # grumpyfail, non-nibble zone. shouldn't happen
715	# return;
716	# }
717
718	# Subbing ZONE in the host. We need to properly ID the netblock range
719	# The subbed text should have "network IP with trailing zeros stripped" for
720	# blocks lined up on octet (for v4) or 16-bit (for v6) boundaries
721	# For blocks that do NOT line up on these boundaries, we tack on an extra "-0",
722	# then take the most significant octet or 16-bit chunk of the "broadcast" IP and
723	# append it after a double-dash
724	# ie:
725	# 8.0.0.0/6 -> 8.0.0.0 -> 11.255.255.255; sub should be 8--11
726	# 10.0.0.0/12 -> 10.0.0.0 -> 10.0.0.0 -> 10.15.255.255; sub should be 10-0--15
727	# 192.168.4.0/22 -> 192.168.4.0 -> 192.168.7.255; sub should be 192-168-4--7
728	# 192.168.0.8/29 -> 192.168.0.8 -> 192.168.0.15; sub should be 192-168-0-8--15
729	# Similar for v6
730	if (!$zone->{isv6}) {
731	my $bc = $zone->broadcast->addr;
732	if ($zone->masklen > 24) {
733	$bc =~ s/^\d+\.\d+\.\d+\.//;
734	} elsif ($zone->masklen > 16) {
735	$prefix =~ s/\.0$//;
736	$bc =~ s/^\d+\.\d+\.//;
737	} elsif ($zone->masklen > 8) {
738	$bc =~ s/^\d+\.//;
739	$prefix =~ s/\.0\.0$//;
740	} else {
741	$prefix =~ s/\.0\.0\.0$//;
742	}
743	if ($zone->masklen % 8) {
744	$bc =~ s/(\.255)+$//;
745	$prefix .= "--$bc"; #"--".zone->masklen; # use range or mask length?
746	}
747	} else {
748	if (($zone->masklen % 16) != 0) {
749	# Strip trailing :0 off $prefix, and :ffff off the broadcast IP
750	# Strip the leading 16-bit chunks off the front of the broadcast IP
751	# Append the remaining 16-bit chunk to the prefix after "--"
752	my $bc = $zone->broadcast->addr;
753	for (my $i=0; $i<(7-int($zone->masklen / 16)); $i++) {
754	$prefix =~ s/:0$//;
755	$bc =~ s/:ffff$//;
756	}
757	$bc =~ s/^([a-f0-9]+:)+//;
758	$prefix .= "--$bc";
759	} else {
760	# Strip off :0 from the end until we reach the netblock length.
761	for (my $i=0; $i<(8-$zone->masklen / 16); $i++) {
762	$prefix =~ s/:0$//;
763	}
764	}
765	}
766
767	# Replace . and : with -
768	# If flagged for reverse-order, split on . or :, reverse, and join with -
769	if ($fr eq 'f') {
770	$prefix =~ s/[:.]+/-/g;
771	} else {
772	$prefix = join('-', reverse(split(/[:.]/, $prefix)));
773	}
774	$string =~ s/ZONE/$prefix/;
775	# }
776	return $string;
777	} # done _ZONE
778
779
780
781	##
782	## Initialization and cleanup subs
783	##
784
785
786	## DNSDB::loadConfig()
787	# Load the minimum required initial state (DB connect info) from a config file
788	# Load misc other bits while we're at it.
789	# Takes an optional basename and config path to look for
790	# Populates the %config and %def hashes
791	sub loadConfig {
792	my $basename = shift \|\| ''; # this will work OK
793	##fixme $basename isn't doing what I think I thought I was trying to do.
794
795	my $deferr = ''; # place to put error from default config file in case we can't find either one
796
797	my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
798	$configroot = '' if $basename =~ m\|^/\|;
799	$basename .= ".conf" if $basename !~ /\.conf$/;
800	my $defconfig = "$configroot/dnsdb.conf";
801	my $siteconfig = "$configroot/$basename";
802
803	# System defaults
804	__cfgload("$defconfig") or $deferr = $errstr;
805
806	# Per-site-ish settings.
807	if ($basename ne '.conf') {
808	unless (__cfgload("$siteconfig")) {
809	$errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
810	"Error opening site config file $siteconfig";
811	return;
812	}
813	}
814
815	# Munge log_failures.
816	if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
817	# true/false, on/off, yes/no all valid.
818	if ($config{log_failures} =~ /^(?:true\|false\|on\|off\|yes\|no)$/) {
819	if ($config{log_failures} =~ /(?:true\|on\|yes)/) {
820	$config{log_failures} = 1;
821	} else {
822	$config{log_failures} = 0;
823	}
824	} else {
825	$errstr = "Bad log_failures setting $config{log_failures}";
826	$config{log_failures} = 1;
827	# Bad setting shouldn't be fatal.
828	# return 2;
829	}
830	}
831
832	# All good, clear the error and go home.
833	$errstr = '';
834	return 1;
835	} # end loadConfig()
836
837
838	## DNSDB::__cfgload()
839	# Private sub to parse a config file and load it into %config
840	# Takes a file handle on an open config file
841	sub __cfgload {
842	$errstr = '';
843	my $cfgfile = shift;
844
845	if (open CFG, "<$cfgfile") {
846	while (<CFG>) {
847	chomp;
848	s/^\s*//;
849	next if /^#/;
850	next if /^$/;
851	# hmm. more complex bits in this file might require [heading] headers, maybe?
852	# $mode = $1 if /^\[(a-z)+]/;
853	# DB connect info
854	$config{dbname} = $1 if /^dbname\s=\s([a-z0-9_.-]+)/i;
855	$config{dbuser} = $1 if /^dbuser\s=\s([a-z0-9_.-]+)/i;
856	$config{dbpass} = $1 if /^dbpass\s=\s([a-z0-9_.-]+)/i;
857	$config{dbhost} = $1 if /^dbhost\s=\s([a-z0-9_.-]+)/i;
858	# SOA defaults
859	$def{contact} = $1 if /^contact\s=\s([a-z0-9_.-]+)/i;
860	$def{prins} = $1 if /^prins\s=\s([a-z0-9_.-]+)/i;
861	$def{soattl} = $1 if /^soattl\s=\s(\d+)/i;
862	$def{refresh} = $1 if /^refresh\s=\s(\d+)/i;
863	$def{retry} = $1 if /^retry\s=\s(\d+)/i;
864	$def{expire} = $1 if /^expire\s=\s(\d+)/i;
865	$def{minttl} = $1 if /^minttl\s=\s(\d+)/i;
866	$def{ttl} = $1 if /^ttl\s=\s(\d+)/i;
867	# Mail settings
868	$config{mailhost} = $1 if /^mailhost\s=\s([a-z0-9_.-]+)/i;
869	$config{mailnotify} = $1 if /^mailnotify\s=\s([a-z0-9_.\@-]+)/i;
870	$config{mailsender} = $1 if /^mailsender\s=\s([a-z0-9_.\@-]+)/i;
871	$config{mailname} = $1 if /^mailname\s=\s([a-z0-9\s_.-]+)/i;
872	$config{orgname} = $1 if /^orgname\s=\s([a-z0-9\s_.,'-]+)/i;
873	$config{domain} = $1 if /^domain\s=\s([a-z0-9_.-]+)/i;
874	# session - note this is fed directly to CGI::Session
875	$config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s=\s(\d+[smhdwMy]?)/;
876	$config{sessiondir} = $1 if m{^sessiondir\s=\s([a-z0-9/_.-]+)}i;
877	# misc
878	$config{log_failures} = $1 if /^log_failures\s=\s([a-z01]+)/i;
879	$config{perpage} = $1 if /^perpage\s=\s(\d+)/i;
880	}
881	close CFG;
882	} else {
883	$errstr = $!;
884	return;
885	}
886	return 1;
887	} # end __cfgload()
888
889
890	## DNSDB::connectDB()
891	# Creates connection to DNS database.
892	# Requires the database name, username, and password.
893	# Returns a handle to the db.
894	# Set up for a PostgreSQL db; could be any transactional DBMS with the
895	# right changes.
896	sub connectDB {
897	$errstr = '';
898	my $dbname = shift;
899	my $user = shift;
900	my $pass = shift;
901	my $dbh;
902	my $DSN = "DBI:Pg:dbname=$dbname";
903
904	my $host = shift;
905	$DSN .= ";host=$host" if $host;
906
907	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
908	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
909	$dbh = DBI->connect($DSN, $user, $pass, {
910	AutoCommit => 1,
911	PrintError => 0
912	})
913	or return (undef, $DBI::errstr) if(!$dbh);
914
915	##fixme: initialize the DB if we can't find the table (since, by definition, there's
916	# nothing there if we can't select from it...)
917	my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
918	my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
919	return (undef,$DBI::errstr) if $dbh->err;
920
921	#if ($tblcount == 0) {
922	# # create tables one at a time, checking for each.
923	# return (undef, "check table misc missing");
924	#}
925
926
927	# Return here if we can't select.
928	# This should retrieve the dbversion key.
929	my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
930	$sth->execute();
931	return (undef,$DBI::errstr) if ($sth->err);
932
933	##fixme: do stuff to the DB on version mismatch
934	# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
935	# DB should be downward-compatible; column defaults should give sane (if possibly
936	# useless-and-needs-help) values in columns an older software stack doesn't know about.
937
938	# See if the select returned anything (or null data). This should
939	# succeed if the select executed, but...
940	$sth->fetchrow();
941	return (undef,$DBI::errstr) if ($sth->err);
942
943	$sth->finish;
944
945	# If we get here, we should be OK.
946	return ($dbh,"DB connection OK");
947	} # end connectDB
948
949
950	## DNSDB::finish()
951	# Cleans up after database handles and so on.
952	# Requires a database handle
953	sub finish {
954	my $dbh = $_[0];
955	$dbh->disconnect;
956	} # end finish
957
958
959	## DNSDB::initGlobals()
960	# Initialize global variables
961	# NB: this does NOT include web-specific session variables!
962	# Requires a database handle
963	sub initGlobals {
964	my $dbh = shift;
965
966	# load record types from database
967	my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
968	$sth->execute;
969	while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
970	$typemap{$recval} = $recname;
971	$reverse_typemap{$recname} = $recval;
972	# now we fill the record validation function hash
973	if ($stdflag < 5) {
974	my $fn = "_validate_$recval";
975	$validators{$recval} = \&$fn;
976	} else {
977	my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
978	$validators{$recval} = eval $fn;
979	}
980	}
981	} # end initGlobals
982
983
984	## DNSDB::login()
985	# Takes a database handle, username and password
986	# Returns a userdata hash (UID, GID, username, fullname parts) if username exists
987	# and password matches the one on file
988	# Returns undef otherwise
989	sub login {
990	my $dbh = shift;
991	my $user = shift;
992	my $pass = shift;
993
994	my $userinfo = $dbh->selectrow_hashref("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?",
995	undef, ($user) );
996	return if !$userinfo;
997
998	if ($userinfo->{password} =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
999	# native passwords (crypt-md5)
1000	return if $userinfo->{password} ne unix_md5_crypt($pass,$1);
1001	} elsif ($userinfo->{password} =~ /^[0-9a-f]{32}$/) {
1002	# VegaDNS import (hex-coded MD5)
1003	return if $userinfo->{password} ne md5_hex($pass);
1004	} else {
1005	# plaintext (convenient now and then)
1006	return if $userinfo->{password} ne $pass;
1007	}
1008
1009	return $userinfo;
1010	} # end login()
1011
1012
1013	## DNSDB::initActionLog()
1014	# Set up action logging. Takes a database handle and user ID
1015	# Sets some internal globals and Does The Right Thing to set up a logging channel.
1016	# This sets up _log() to spew out log entries to the defined channel without worrying
1017	# about having to open a file or a syslog channel
1018	##fixme Need to call _initActionLog_blah() for various logging channels, configured
1019	# via dnsdb.conf, in $config{log_channel} or something
1020	# See https://secure.deepnet.cx/trac/dnsadmin/ticket/21
1021	sub initActionLog {
1022	my $dbh = shift;
1023	my $uid = shift;
1024
1025	return if !$uid;
1026
1027	# snag user info for logging. there's got to be a way to not have to pass this back
1028	# and forth from a caller, but web usage means no persistence we can rely on from
1029	# the server side.
1030	my ($username,$fullname) = $dbh->selectrow_array("SELECT username, firstname \|\| ' ' \|\| lastname".
1031	" FROM users WHERE user_id=?", undef, ($uid));
1032	##fixme: errors are unpossible!
1033
1034	$userdata{username} = $username;
1035	$userdata{userid} = $uid;
1036	$userdata{fullname} = $fullname;
1037
1038	# convert to real check once we have other logging channels
1039	# if ($config{log_channel} eq 'sql') {
1040	# Open Log, Sez Me!
1041	# }
1042
1043	} # end initActionLog
1044
1045
1046	## DNSDB::initPermissions()
1047	# Set up permissions global
1048	# Takes database handle and UID
1049	sub initPermissions {
1050	my $dbh = shift;
1051	my $uid = shift;
1052
1053	# %permissions = $(getPermissions($dbh,'user',$uid));
1054	getPermissions($dbh, 'user', $uid, \%permissions);
1055
1056	} # end initPermissions()
1057
1058
1059	## DNSDB::getPermissions()
1060	# Get permissions from DB
1061	# Requires DB handle, group or user flag, ID, and hashref.
1062	sub getPermissions {
1063	my $dbh = shift;
1064	my $type = shift;
1065	my $id = shift;
1066	my $hash = shift;
1067
1068	my $sql = qq(
1069	SELECT
1070	p.admin,p.self_edit,
1071	p.group_create,p.group_edit,p.group_delete,
1072	p.user_create,p.user_edit,p.user_delete,
1073	p.domain_create,p.domain_edit,p.domain_delete,
1074	p.record_create,p.record_edit,p.record_delete
1075	FROM permissions p
1076	);
1077	if ($type eq 'group') {
1078	$sql .= qq(
1079	JOIN groups g ON g.permission_id=p.permission_id
1080	WHERE g.group_id=?
1081	);
1082	} else {
1083	$sql .= qq(
1084	JOIN users u ON u.permission_id=p.permission_id
1085	WHERE u.user_id=?
1086	);
1087	}
1088
1089	my $sth = $dbh->prepare($sql);
1090
1091	$sth->execute($id) or die "argh: ".$sth->errstr;
1092
1093	# my $permref = $sth->fetchrow_hashref;
1094	# return $permref;
1095	# $hash = $permref;
1096	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
1097	($hash->{admin},$hash->{self_edit},
1098	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
1099	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
1100	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
1101	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
1102	= $sth->fetchrow_array;
1103
1104	} # end getPermissions()
1105
1106
1107	## DNSDB::changePermissions()
1108	# Update an ACL entry
1109	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
1110	sub changePermissions {
1111	my $dbh = shift;
1112	my $type = shift;
1113	my $id = shift;
1114	my $newperms = shift;
1115	my $inherit = shift \|\| 0;
1116
1117	my $resultmsg = '';
1118
1119	# see if we're switching from inherited to custom. for bonus points,
1120	# snag the permid and parent permid anyway, since we'll need the permid
1121	# to set/alter custom perms, and both if we're switching from custom to
1122	# inherited.
1123	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id,".
1124	($type eq 'user' ? 'u.group_id,u.username' : 'u.parent_group_id,u.group_name').
1125	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
1126	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
1127	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
1128	$sth->execute($id);
1129
1130	my ($wasinherited,$permid,$parpermid,$parid,$name) = $sth->fetchrow_array;
1131
1132	# hack phtoui
1133	# group id 1 is "special" in that it's it's own parent (err... possibly.)
1134	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
1135	$wasinherited = 0 if ($type eq 'group' && $id == 1);
1136
1137	local $dbh->{AutoCommit} = 0;
1138	local $dbh->{RaiseError} = 1;
1139
1140	# Wrap all the SQL in a transaction
1141	eval {
1142	if ($inherit) {
1143
1144	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
1145	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
1146	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
1147
1148	} else {
1149
1150	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
1151	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
1152	# ... if'n'when we have groups with fully inherited permissions.
1153	# SQL is coo
1154	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
1155	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
1156	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
1157	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
1158	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
1159	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
1160	}
1161
1162	# and now set the permissions we were passed
1163	foreach (@permtypes) {
1164	if (defined ($newperms->{$_})) {
1165	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
1166	}
1167	}
1168
1169	} # (inherited->)? custom
1170
1171	if ($type eq 'user') {
1172	$resultmsg = "Updated permissions for user $name";
1173	} else {
1174	$resultmsg = "Updated default permissions for group $name";
1175	}
1176	_log($dbh, (group_id => ($type eq 'user' ? $parid : $id), entry => $resultmsg));
1177	$dbh->commit;
1178	}; # end eval
1179	if ($@) {
1180	my $msg = $@;
1181	eval { $dbh->rollback; };
1182	return ('FAIL',"Error changing permissions: $msg");
1183	}
1184
1185	return ('OK',$resultmsg);
1186	} # end changePermissions()
1187
1188
1189	## DNSDB::comparePermissions()
1190	# Compare two permission hashes
1191	# Returns '>', '<', '=', '!'
1192	sub comparePermissions {
1193	my $p1 = shift;
1194	my $p2 = shift;
1195
1196	my $retval = '='; # assume equality until proven otherwise
1197
1198	no warnings "uninitialized";
1199
1200	foreach (@permtypes) {
1201	next if $p1->{$_} == $p2->{$_}; # equal is good
1202	if ($p1->{$_} && !$p2->{$_}) {
1203	if ($retval eq '<') { # if we've already found an unequal pair where
1204	$retval = '!'; # $p2 has more access, and we now find a pair
1205	last; # where $p1 has more access, the overall access
1206	} # is neither greater or lesser, it's unequal.
1207	$retval = '>';
1208	}
1209	if (!$p1->{$_} && $p2->{$_}) {
1210	if ($retval eq '>') { # if we've already found an unequal pair where
1211	$retval = '!'; # $p1 has more access, and we now find a pair
1212	last; # where $p2 has more access, the overall access
1213	} # is neither greater or lesser, it's unequal.
1214	$retval = '<';
1215	}
1216	}
1217	return $retval;
1218	} # end comparePermissions()
1219
1220
1221	## DNSDB::changeGroup()
1222	# Change group ID of an entity
1223	# Takes a database handle, entity type, entity ID, and new group ID
1224	sub changeGroup {
1225	my $dbh = shift;
1226	my $type = shift;
1227	my $id = shift;
1228	my $newgrp = shift;
1229
1230	##fixme: fail on not enough args
1231	#return ('FAIL', "Missing
1232
1233	if ($type eq 'domain') {
1234	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
1235	or return ('FAIL','Group change failed: '.$dbh->errstr);
1236	} elsif ($type eq 'user') {
1237	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
1238	or return ('FAIL','Group change failed: '.$dbh->errstr);
1239	} elsif ($type eq 'group') {
1240	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
1241	or return ('FAIL','Group change failed: '.$dbh->errstr);
1242	}
1243	return ('OK','OK');
1244	} # end changeGroup()
1245
1246
1247	##
1248	## Processing subs
1249	##
1250
1251	## DNSDB::addDomain()
1252	# Add a domain
1253	# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1254	# and user info hash (for logging).
1255	# Returns a status code and message
1256	sub addDomain {
1257	$errstr = '';
1258	my $dbh = shift;
1259	return ('FAIL',"Need database handle") if !$dbh;
1260	my $domain = shift;
1261	return ('FAIL',"Domain must not be blank") if !$domain;
1262	my $group = shift;
1263	return ('FAIL',"Need group") if !defined($group);
1264	my $state = shift;
1265	return ('FAIL',"Need domain status") if !defined($state);
1266
1267	my %userinfo = @_; # remaining bits.
1268	# user ID, username, user full name
1269
1270	$state = 1 if $state =~ /^active$/;
1271	$state = 1 if $state =~ /^on$/;
1272	$state = 0 if $state =~ /^inactive$/;
1273	$state = 0 if $state =~ /^off$/;
1274
1275	return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1276
1277	return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1278
1279	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
1280	my $dom_id;
1281
1282	# quick check to start to see if we've already got one
1283	$sth->execute($domain);
1284	($dom_id) = $sth->fetchrow_array;
1285
1286	return ('FAIL', "Domain already exists") if $dom_id;
1287
1288	# Allow transactions, and raise an exception on errors so we can catch it later.
1289	# Use local to make sure these get "reset" properly on exiting this block
1290	local $dbh->{AutoCommit} = 0;
1291	local $dbh->{RaiseError} = 1;
1292
1293	# Wrap all the SQL in a transaction
1294	eval {
1295	# insert the domain...
1296	$dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
1297
1298	# get the ID...
1299	($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
1300
1301	_log($dbh, (domain_id => $dom_id, group_id => $group,
1302	entry => "Added ".($state ? 'active' : 'inactive')." domain $domain"));
1303
1304	# ... and now we construct the standard records from the default set. NB: group should be variable.
1305	my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1306	my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
1307	" VALUES ($dom_id,?,?,?,?,?,?,?)");
1308	$sth->execute($group);
1309	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
1310	$host =~ s/DOMAIN/$domain/g;
1311	$val =~ s/DOMAIN/$domain/g;
1312	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
1313	if ($typemap{$type} eq 'SOA') {
1314	my @tmp1 = split /:/, $host;
1315	my @tmp2 = split /:/, $val;
1316	_log($dbh, (domain_id => $dom_id, group_id => $group,
1317	entry => "[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1318	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1319	} else {
1320	my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1321	$logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1322	$logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1323	_log($dbh, (domain_id => $dom_id, group_id => $group,
1324	entry => $logentry." $val', TTL $ttl"));
1325	}
1326	}
1327
1328	# once we get here, we should have suceeded.
1329	$dbh->commit;
1330	}; # end eval
1331
1332	if ($@) {
1333	my $msg = $@;
1334	eval { $dbh->rollback; };
1335	_log($dbh, (group_id => $group, entry => "Failed adding domain $domain ($msg)"))
1336	if $config{log_failures};
1337	$dbh->commit; # since we enabled transactions earlier
1338	return ('FAIL',$msg);
1339	} else {
1340	return ('OK',$dom_id);
1341	}
1342	} # end addDomain
1343
1344
1345	## DNSDB::delZone()
1346	# Delete a forward or reverse zone.
1347	# Takes a database handle, zone ID, and forward/reverse flag.
1348	# for now, just delete the records, then the domain.
1349	# later we may want to archive it in some way instead (status code 2, for example?)
1350	sub delZone {
1351	my $dbh = shift;
1352	my $zoneid = shift;
1353	my $revrec = shift;
1354
1355	# Allow transactions, and raise an exception on errors so we can catch it later.
1356	# Use local to make sure these get "reset" properly on exiting this block
1357	local $dbh->{AutoCommit} = 0;
1358	local $dbh->{RaiseError} = 1;
1359
1360	my $msg = '';
1361	my $failmsg = '';
1362	my $zone = ($revrec eq 'n' ? domainName($dbh, $zoneid) : revName($dbh, $zoneid));
1363
1364	# Set this up here since we may use if if $config{log_failures} is enabled
1365	my %loghash;
1366	$loghash{domain_id} = $zoneid if $revrec eq 'n';
1367	$loghash{rdns_id} = $zoneid if $revrec eq 'y';
1368	$loghash{group_id} = parentID($dbh,
1369	(id => $zoneid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
1370
1371	# Wrap all the SQL in a transaction
1372	eval {
1373	# Disentangle custom record types before removing the
1374	# ones that are only in the zone to be deleted
1375	if ($revrec eq 'n') {
1376	my $sth = $dbh->prepare("UPDATE records SET type=?,domain_id=0 WHERE domain_id=? AND type=?");
1377	$failmsg = "Failure converting multizone types to single-zone";
1378	$sth->execute($reverse_typemap{PTR}, $zoneid, 65280);
1379	$sth->execute($reverse_typemap{PTR}, $zoneid, 65281);
1380	$sth->execute(65282, $zoneid, 65283);
1381	$sth->execute(65282, $zoneid, 65284);
1382	$failmsg = "Failure removing domain records";
1383	$dbh->do("DELETE FROM records WHERE domain_id=?", undef, ($zoneid));
1384	$failmsg = "Failure removing domain";
1385	$dbh->do("DELETE FROM domains WHERE domain_id=?", undef, ($zoneid));
1386	} else {
1387	my $sth = $dbh->prepare("UPDATE records SET type=?,rdns_id=0 WHERE rdns_id=? AND type=?");
1388	$failmsg = "Failure converting multizone types to single-zone";
1389	$sth->execute($reverse_typemap{A}, $zoneid, 65280);
1390	$sth->execute($reverse_typemap{AAAA}, $zoneid, 65281);
1391	# We don't have an "A template" or "AAAA template" type, although it might be useful for symmetry.
1392	# $sth->execute(65285?, $zoneid, 65283);
1393	# $sth->execute(65285?, $zoneid, 65284);
1394	$failmsg = "Failure removing reverse records";
1395	$dbh->do("DELETE FROM records WHERE rdns_id=?", undef, ($zoneid));
1396	$failmsg = "Failure removing reverse zone";
1397	$dbh->do("DELETE FROM revzones WHERE rdns_id=?", undef, ($zoneid));
1398	}
1399
1400	$msg = "Deleted ".($revrec eq 'n' ? 'domain' : 'reverse zone')." $zone";
1401	$loghash{entry} = $msg;
1402	_log($dbh, %loghash);
1403
1404	# once we get here, we should have suceeded.
1405	$dbh->commit;
1406	}; # end eval
1407
1408	if ($@) {
1409	$msg = $@;
1410	eval { $dbh->rollback; };
1411	$loghash{entry} = "Delete $zone: $failmsg: $msg";
1412	_log($dbh, %loghash) if $config{log_failures};
1413	$dbh->commit; # since we enabled transactions earlier
1414	return ('FAIL',"Delete $zone: $failmsg: $msg");
1415	} else {
1416	return ('OK',$msg);
1417	}
1418
1419	} # end delZone()
1420
1421
1422	## DNSDB::domainName()
1423	# Return the domain name based on a domain ID
1424	# Takes a database handle and the domain ID
1425	# Returns the domain name or undef on failure
1426	sub domainName {
1427	$errstr = '';
1428	my $dbh = shift;
1429	my $domid = shift;
1430	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
1431	$errstr = $DBI::errstr if !$domname;
1432	return $domname if $domname;
1433	} # end domainName()
1434
1435
1436	## DNSDB::revName()
1437	# Return the reverse zone name based on an rDNS ID
1438	# Takes a database handle and the rDNS ID
1439	# Returns the reverse zone name or undef on failure
1440	sub revName {
1441	$errstr = '';
1442	my $dbh = shift;
1443	my $revid = shift;
1444	my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
1445	$errstr = $DBI::errstr if !$revname;
1446	return $revname if $revname;
1447	} # end revName()
1448
1449
1450	## DNSDB::domainID()
1451	# Takes a database handle and domain name
1452	# Returns the domain ID number
1453	sub domainID {
1454	$errstr = '';
1455	my $dbh = shift;
1456	my $domain = shift;
1457	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
1458	$errstr = $DBI::errstr if !$domid;
1459	return $domid if $domid;
1460	} # end domainID()
1461
1462
1463	## DNSDB::revID()
1464	# Takes a database handle and reverse zone name
1465	# Returns the rDNS ID number
1466	sub revID {
1467	$errstr = '';
1468	my $dbh = shift;
1469	my $revzone = shift;
1470	my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet=?", undef, ($revzone) );
1471	$errstr = $DBI::errstr if !$revid;
1472	return $revid if $revid;
1473	} # end revID()
1474
1475
1476	## DNSDB::addRDNS
1477	# Adds a reverse DNS zone
1478	# Takes a database handle, CIDR block, reverse DNS pattern, numeric group,
1479	# and boolean(ish) state (active/inactive)
1480	# Returns a status code and message
1481	sub addRDNS {
1482	my $dbh = shift;
1483	my $zone = NetAddr::IP->new(shift);
1484	return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
1485	my $revpatt = shift; # construct a custom (A/AAAA+)? PTR template record
1486	my $group = shift;
1487	my $state = shift;
1488
1489	$state = 1 if $state =~ /^active$/;
1490	$state = 1 if $state =~ /^on$/;
1491	$state = 0 if $state =~ /^inactive$/;
1492	$state = 0 if $state =~ /^off$/;
1493
1494	return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
1495
1496	# quick check to start to see if we've already got one
1497	my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revzone=?", undef, ("$zone"));
1498
1499	return ('FAIL', "Zone already exists") if $rdns_id;
1500
1501	# Allow transactions, and raise an exception on errors so we can catch it later.
1502	# Use local to make sure these get "reset" properly on exiting this block
1503	local $dbh->{AutoCommit} = 0;
1504	local $dbh->{RaiseError} = 1;
1505
1506	my $warnstr = '';
1507	my $defttl = 3600; # 1 hour should be reasonable. And unless things have gone horribly
1508	# wrong, we should have a value to override this anyway.
1509
1510	# Wrap all the SQL in a transaction
1511	eval {
1512	# insert the domain...
1513	$dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($zone, $group, $state));
1514
1515	# get the ID...
1516	($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
1517
1518	_log($dbh, (rdns_id => $rdns_id, group_id => $group,
1519	entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone"));
1520
1521	# ... and now we construct the standard records from the default set. NB: group should be variable.
1522	my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
1523	my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,domain_id,host,type,val,ttl)".
1524	" VALUES ($rdns_id,?,?,?,?,?)");
1525	$sth->execute($group);
1526	while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
1527	# Silently skip v4/v6 mismatches. This is not an error, this is expected.
1528	if ($zone->{isv6}) {
1529	next if ($type == 65280 \|\| $type == 65283);
1530	} else {
1531	next if ($type == 65281 \|\| $type == 65284);
1532	}
1533
1534	$host =~ s/ADMINDOMAIN/$config{domain}/g;
1535
1536	# Check to make sure the IP stubs will fit in the zone. Under most usage failures here should be rare.
1537	# On failure, tack a note on to a warning string and continue without adding this record.
1538	# While we're at it, we substitute $zone for ZONE in the value.
1539	if ($val eq 'ZONE') {
1540	next if $revpatt; # If we've got a pattern, we skip the default record version.
1541	##fixme? do we care if we have multiple whole-zone templates?
1542	$val = $zone->network;
1543	} elsif ($val =~ /ZONE/) {
1544	my $tmpval = $val;
1545	$tmpval =~ s/ZONE//;
1546	# Bend the rules and allow single-trailing-number PTR or PTR template records to be inserted
1547	# as either v4 or v6. May make this an off-by-default config flag
1548	# Note that the origin records that may trigger this SHOULD already have ZONE,\d
1549	if ($type == 12 \|\| $type == 65282) {
1550	$tmpval =~ s/[,.]/::/ if ($tmpval =~ /^[,.]\d+$/ && $zone->{isv6});
1551	$tmpval =~ s/[,:]+/./ if ($tmpval =~ /^(?:,\|::)\d+$/ && !$zone->{isv6});
1552	}
1553	my $addr;
1554	if (_ipparent($dbh, 'n', 'y', \$tmpval, $rdns_id, \$addr)) {
1555	$val = $addr->addr;
1556	} else {
1557	$warnstr .= "\nDefault record '$val $typemap{$type} $host' doesn't fit in $zone, skipping";
1558	next;
1559	}
1560	}
1561
1562	# Substitute $zone for ZONE in the hostname.
1563	$host = _ZONE($zone, $host);
1564
1565	# Fill in the forward domain ID if we can find it, otherwise:
1566	# Coerce type down to PTR or PTR template if we can't
1567	my $domid = 0;
1568	if ($type >= 65280) {
1569	if (!($domid = _hostparent($dbh, $host))) {
1570	$warnstr .= "\nRecord added as PTR instead of $typemap{$type}; domain not found for $host";
1571	$type = $reverse_typemap{PTR};
1572	$domid = 0; # just to be explicit.
1573	}
1574	}
1575
1576	$sth_in->execute($domid,$host,$type,$val,$ttl);
1577
1578	if ($typemap{$type} eq 'SOA') {
1579	my @tmp1 = split /:/, $host;
1580	my @tmp2 = split /:/, $val;
1581	_log($dbh, (rdns_id => $rdns_id, group_id => $group,
1582	entry => "[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1583	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1584	$defttl = $tmp2[3];
1585	} else {
1586	my $logentry = "[new $zone] Added record '$host $typemap{$type}";
1587	_log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
1588	entry => $logentry." $val', TTL $ttl"));
1589	}
1590	}
1591
1592	# Generate record based on provided pattern.
1593	if ($revpatt) {
1594	my $host;
1595	my $type = ($zone->{isv6} ? 65284 : 65283);
1596	my $val = $zone->network;
1597
1598	# Substitute $zone for ZONE in the hostname.
1599	$host = _ZONE($zone, $revpatt);
1600
1601	my $domid = 0;
1602	if (!($domid = _hostparent($dbh, $host))) {
1603	$warnstr .= "\nDefault pattern added as PTR template instead of $typemap{$type}; domain not found for $host";
1604	$type = 65282;
1605	$domid = 0; # just to be explicit.
1606	}
1607
1608	$sth_in->execute($domid,$host,$type,$val,$defttl);
1609	my $logentry = "[new $zone] Added record '$host $typemap{$type}";
1610	_log($dbh, (rdns_id => $rdns_id, domain_id => $domid, group_id => $group,
1611	entry => $logentry." $val', TTL $defttl from pattern"));
1612	}
1613
1614	# If there are warnings (presumably about default records skipped for cause) log them
1615	_log($dbh, (rdns_id => $rdns_id, group_id => $group, entry => "Warning(s) adding $zone:$warnstr"))
1616	if $warnstr;
1617
1618	# once we get here, we should have suceeded.
1619	$dbh->commit;
1620	}; # end eval
1621
1622	if ($@) {
1623	my $msg = $@;
1624	eval { $dbh->rollback; };
1625	_log($dbh, (group_id => $group, entry => "Failed adding reverse zone $zone ($msg)"))
1626	if $config{log_failures};
1627	$dbh->commit; # since we enabled transactions earlier
1628	return ('FAIL',$msg);
1629	} else {
1630	my $retcode = 'OK';
1631	if ($warnstr) {
1632	$resultstr = $warnstr;
1633	$retcode = 'WARN';
1634	}
1635	return ($retcode, $rdns_id);
1636	}
1637
1638	} # end addRDNS()
1639
1640
1641	## DNSDB::getZoneCount
1642	# Get count of zones in group or groups
1643	# Takes a database handle and hash containing:
1644	# - the "current" group
1645	# - an array of "acceptable" groups
1646	# - a flag for forward/reverse zones
1647	# - Optionally accept a "starts with" and/or "contains" filter argument
1648	# Returns an integer count of the resulting zone list.
1649	sub getZoneCount {
1650	my $dbh = shift;
1651
1652	my %args = @_;
1653
1654	my @filterargs;
1655	$args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]\|0-9)$/;
1656	push @filterargs, "^$args{startwith}" if $args{startwith};
1657	$args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
1658	push @filterargs, $args{filter} if $args{filter};
1659
1660	my $sql;
1661	# Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
1662	if ($args{revrec} eq 'n') {
1663	$sql = "SELECT count(*) FROM domains".
1664	" WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1665	($args{startwith} ? " AND domain ~* ?" : '').
1666	($args{filter} ? " AND domain ~* ?" : '');
1667	} else {
1668	$sql = "SELECT count(*) FROM revzones".
1669	" WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1670	($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
1671	($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
1672	}
1673	my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
1674	return $count;
1675	} # end getZoneCount()
1676
1677
1678	## DNSDB::getZoneList()
1679	# Get a list of zones in the specified group(s)
1680	# Takes the same arguments as getZoneCount() above
1681	# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
1682	sub getZoneList {
1683	my $dbh = shift;
1684
1685	my %args = @_;
1686
1687	my @zonelist;
1688
1689	$args{sortorder} = 'ASC' if !grep $args{sortorder}, ('ASC','DESC');
1690	$args{offset} = 0 if !$args{offset} \|\| $args{offset} !~ /^(?:all\|\d+)$/;
1691
1692	my @filterargs;
1693	$args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]\|0-9)$/;
1694	push @filterargs, "^$args{startwith}" if $args{startwith};
1695	$args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
1696	push @filterargs, $args{filter} if $args{filter};
1697
1698	my $sql;
1699	# Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
1700	if ($args{revrec} eq 'n') {
1701	$args{sortby} = 'domain' if !grep $args{sortby}, ('revnet','group','status');
1702	$sql = "SELECT domain_id,domain,status,groups.group_name AS group FROM domains".
1703	" INNER JOIN groups ON domains.group_id=groups.group_id".
1704	" WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1705	($args{startwith} ? " AND domain ~* ?" : '').
1706	($args{filter} ? " AND domain ~* ?" : '');
1707	} else {
1708	##fixme: arguably startwith here is irrelevant. depends on the UI though.
1709	$args{sortby} = 'revnet' if !grep $args{sortby}, ('domain','group','status');
1710	$sql = "SELECT rdns_id,revnet,status,groups.group_name AS group FROM revzones".
1711	" INNER JOIN groups ON revzones.group_id=groups.group_id".
1712	" WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1713	($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
1714	($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
1715	}
1716	# A common tail.
1717	$sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
1718	($args{offset} eq 'all' ? '' : " LIMIT $config{perpage}".
1719	" OFFSET ".$args{offset}*$config{perpage});
1720	my $sth = $dbh->prepare($sql);
1721	$sth->execute(@filterargs);
1722	my $rownum = 0;
1723
1724	while (my @data = $sth->fetchrow_array) {
1725	my %row;
1726	$row{domainid} = $data[0];
1727	$row{domain} = $data[1];
1728	$row{status} = $data[2];
1729	$row{group} = $data[3];
1730	push @zonelist, \%row;
1731	}
1732
1733	return \@zonelist;
1734	} # end getZoneList()
1735
1736
1737	## DNSDB::addGroup()
1738	# Add a group
1739	# Takes a database handle, group name, parent group, hashref for permissions,
1740	# and optional template-vs-cloneme flag for the default records
1741	# Returns a status code and message
1742	sub addGroup {
1743	$errstr = '';
1744	my $dbh = shift;
1745	my $groupname = shift;
1746	my $pargroup = shift;
1747	my $permissions = shift;
1748
1749	# 0 indicates "custom", hardcoded.
1750	# Any other value clones that group's default records, if it exists.
1751	my $inherit = shift \|\| 0;
1752	##fixme: need a flag to indicate clone records or <?> ?
1753
1754	# Allow transactions, and raise an exception on errors so we can catch it later.
1755	# Use local to make sure these get "reset" properly on exiting this block
1756	local $dbh->{AutoCommit} = 0;
1757	local $dbh->{RaiseError} = 1;
1758
1759	my ($group_id) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
1760
1761	return ('FAIL', "Group already exists") if $group_id;
1762
1763	# Wrap all the SQL in a transaction
1764	eval {
1765	$dbh->do("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)", undef, ($pargroup, $groupname) );
1766
1767	my ($groupid) = $dbh->selectrow_array("SELECT currval('groups_group_id_seq')");
1768
1769	# We work through the whole set of permissions instead of specifying them so
1770	# that when we add a new permission, we don't have to change the code anywhere
1771	# that doesn't explicitly deal with that specific permission.
1772	my @permvals;
1773	foreach (@permtypes) {
1774	if (!defined ($permissions->{$_})) {
1775	push @permvals, 0;
1776	} else {
1777	push @permvals, $permissions->{$_};
1778	}
1779	}
1780	$dbh->do("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")",
1781	undef, ($groupid, @permvals) );
1782	my ($permid) = $dbh->selectrow_array("SELECT currval('permissions_permission_id_seq')");
1783	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
1784
1785	# Default records
1786	my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
1787	"VALUES ($groupid,?,?,?,?,?,?,?)");
1788	my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
1789	"VALUES ($groupid,?,?,?,?)");
1790	if ($inherit) {
1791	# Duplicate records from parent. Actually relying on inherited records feels
1792	# very fragile, and it would be problematic to roll over at a later time.
1793	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1794	$sth2->execute($pargroup);
1795	while (my @clonedata = $sth2->fetchrow_array) {
1796	$sthf->execute(@clonedata);
1797	}
1798	# And now the reverse records
1799	$sth2 = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
1800	$sth2->execute($pargroup);
1801	while (my @clonedata = $sth2->fetchrow_array) {
1802	$sthr->execute(@clonedata);
1803	}
1804	} else {
1805	##fixme: Hardcoding is Bad, mmmmkaaaay?
1806	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
1807	# could load from a config file, but somewhere along the line we need hardcoded bits.
1808	$sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
1809	$sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
1810	$sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
1811	$sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
1812	$sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
1813	$sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
1814	# reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
1815	$sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
1816	$sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
1817	}
1818
1819	_log($dbh, (group_id => $pargroup, entry => "Added group $groupname") );
1820
1821	# once we get here, we should have suceeded.
1822	$dbh->commit;
1823	}; # end eval
1824
1825	if ($@) {
1826	my $msg = $@;
1827	eval { $dbh->rollback; };
1828	if ($config{log_failures}) {
1829	_log($dbh, (group_id => $pargroup, entry => "Failed to add group $groupname: $msg") );
1830	$dbh->commit;
1831	}
1832	return ('FAIL',$msg);
1833	}
1834
1835	return ('OK','OK');
1836	} # end addGroup()
1837
1838
1839	## DNSDB::delGroup()
1840	# Delete a group.
1841	# Takes a group ID
1842	# Returns a status code and message
1843	sub delGroup {
1844	my $dbh = shift;
1845	my $groupid = shift;
1846
1847	# Allow transactions, and raise an exception on errors so we can catch it later.
1848	# Use local to make sure these get "reset" properly on exiting this block
1849	local $dbh->{AutoCommit} = 0;
1850	local $dbh->{RaiseError} = 1;
1851
1852	##fixme: locate "knowable" error conditions and deal with them before the eval
1853	# ... or inside, whatever.
1854	# -> domains still exist in group
1855	# -> ...
1856	my $failmsg = '';
1857	my $resultmsg = '';
1858
1859	# collect some pieces for logging and error messages
1860	my $groupname = groupName($dbh,$groupid);
1861	my $parid = parentID($dbh, (id => $groupid, type => 'group'));
1862
1863	# Wrap all the SQL in a transaction
1864	eval {
1865	# Check for Things in the group
1866	$failmsg = "Can't remove group $groupname";
1867	my ($grpcnt) = $dbh->selectrow_array("SELECT count(*) FROM groups WHERE parent_group_id=?", undef, ($groupid));
1868	die "$grpcnt groups still in group\n" if $grpcnt;
1869	my ($domcnt) = $dbh->selectrow_array("SELECT count(*) FROM domains WHERE group_id=?", undef, ($groupid));
1870	die "$domcnt domains still in group\n" if $domcnt;
1871	my ($usercnt) = $dbh->selectrow_array("SELECT count(*) FROM users WHERE group_id=?", undef, ($groupid));
1872	die "$usercnt users still in group\n" if $usercnt;
1873
1874	$failmsg = "Failed to delete default records for $groupname";
1875	$dbh->do("DELETE from default_records WHERE group_id=?", undef, ($groupid));
1876	$failmsg = "Failed to delete default reverse records for $groupname";
1877	$dbh->do("DELETE from default_rev_records WHERE group_id=?", undef, ($groupid));
1878	$failmsg = "Failed to remove group $groupname";
1879	$dbh->do("DELETE from groups WHERE group_id=?", undef, ($groupid));
1880
1881	_log($dbh, (group_id => $parid, entry => "Deleted group $groupname"));
1882	$resultmsg = "Deleted group $groupname";
1883
1884	# once we get here, we should have suceeded.
1885	$dbh->commit;
1886	}; # end eval
1887
1888	if ($@) {
1889	my $msg = $@;
1890	eval { $dbh->rollback; };
1891	if ($config{log_failures}) {
1892	_log($dbh, (group_id => $parid, entry => "$failmsg: $msg"));
1893	$dbh->commit; # since we enabled transactions earlier
1894	}
1895	return ('FAIL',"$failmsg: $msg");
1896	}
1897
1898	return ('OK',$resultmsg);
1899	} # end delGroup()
1900
1901
1902	## DNSDB::getChildren()
1903	# Get a list of all groups whose parent^n is group <n>
1904	# Takes a database handle, group ID, reference to an array to put the group IDs in,
1905	# and an optional flag to return only immediate children or all children-of-children
1906	# default to returning all children
1907	# Calls itself
1908	sub getChildren {
1909	$errstr = '';
1910	my $dbh = shift;
1911	my $rootgroup = shift;
1912	my $groupdest = shift;
1913	my $immed = shift \|\| 'all';
1914
1915	# special break for default group; otherwise we get stuck.
1916	if ($rootgroup == 1) {
1917	# by definition, group 1 is the Root Of All Groups
1918	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
1919	($immed ne 'all' ? " AND parent_group_id=1" : ''));
1920	$sth->execute;
1921	while (my @this = $sth->fetchrow_array) {
1922	push @$groupdest, @this;
1923	}
1924	} else {
1925	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
1926	$sth->execute($rootgroup);
1927	return if $sth->rows == 0;
1928	my @grouplist;
1929	while (my ($group) = $sth->fetchrow_array) {
1930	push @$groupdest, $group;
1931	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
1932	}
1933	}
1934	} # end getChildren()
1935
1936
1937	## DNSDB::groupName()
1938	# Return the group name based on a group ID
1939	# Takes a database handle and the group ID
1940	# Returns the group name or undef on failure
1941	sub groupName {
1942	$errstr = '';
1943	my $dbh = shift;
1944	my $groupid = shift;
1945	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
1946	$sth->execute($groupid);
1947	my ($groupname) = $sth->fetchrow_array();
1948	$errstr = $DBI::errstr if !$groupname;
1949	return $groupname if $groupname;
1950	} # end groupName
1951
1952
1953	## DNSDB::groupID()
1954	# Return the group ID based on the group name
1955	# Takes a database handle and the group name
1956	# Returns the group ID or undef on failure
1957	sub groupID {
1958	$errstr = '';
1959	my $dbh = shift;
1960	my $group = shift;
1961	my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
1962	$errstr = $DBI::errstr if !$grpid;
1963	return $grpid if $grpid;
1964	} # end groupID()
1965
1966
1967	## DNSDB::addUser()
1968	# Add a user.
1969	# Takes a DB handle, username, group ID, password, state (active/inactive).
1970	# Optionally accepts:
1971	# user type (user/admin) - defaults to user
1972	# permissions string - defaults to inherit from group
1973	# three valid forms:
1974	# i - Inherit permissions
1975	# c:<user_id> - Clone permissions from <user_id>
1976	# C:<permission list> - Set these specific permissions
1977	# first name - defaults to username
1978	# last name - defaults to blank
1979	# phone - defaults to blank (could put other data within column def)
1980	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
1981	sub addUser {
1982	$errstr = '';
1983	my $dbh = shift;
1984	my $username = shift;
1985	my $group = shift;
1986	my $pass = shift;
1987	my $state = shift;
1988
1989	return ('FAIL', "Missing one or more required entries") if !defined($state);
1990	return ('FAIL', "Username must not be blank") if !$username;
1991
1992	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
1993
1994	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
1995
1996	my $fname = shift \|\| $username;
1997	my $lname = shift \|\| '';
1998	my $phone = shift \|\| ''; # not going format-check
1999
2000	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
2001	my $user_id;
2002
2003	# quick check to start to see if we've already got one
2004	$sth->execute($username);
2005	($user_id) = $sth->fetchrow_array;
2006
2007	return ('FAIL', "User already exists") if $user_id;
2008
2009	# Allow transactions, and raise an exception on errors so we can catch it later.
2010	# Use local to make sure these get "reset" properly on exiting this block
2011	local $dbh->{AutoCommit} = 0;
2012	local $dbh->{RaiseError} = 1;
2013
2014	# Wrap all the SQL in a transaction
2015	eval {
2016	# insert the user... note we set inherited perms by default since
2017	# it's simple and cleans up some other bits of state
2018	my $sth = $dbh->prepare("INSERT INTO users ".
2019	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
2020	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
2021	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
2022
2023	# get the ID...
2024	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
2025
2026	# Permissions! Gotta set'em all!
2027	die "Invalid permission string $permstring"
2028	if $permstring !~ /^(?:
2029	i # inherit
2030	\|c:\d+ # clone
2031	# custom. no, the leading , is not a typo
2032	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
2033	)$/x;
2034	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
2035	if ($permstring ne 'i') {
2036	# for cloned or custom permissions, we have to create a new permissions entry.
2037	my $clonesrc = $group;
2038	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
2039	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
2040	"SELECT $permlist,? FROM permissions WHERE permission_id=".
2041	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
2042	undef, ($user_id,$clonesrc) );
2043	$dbh->do("UPDATE users SET permission_id=".
2044	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
2045	"WHERE user_id=?", undef, ($user_id, $user_id) );
2046	}
2047	if ($permstring =~ /^C:/) {
2048	# finally for custom permissions, we set the passed-in permissions (and unset
2049	# any that might have been brought in by the clone operation above)
2050	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
2051	undef, ($user_id) );
2052	foreach (@permtypes) {
2053	if ($permstring =~ /,$_/) {
2054	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
2055	} else {
2056	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
2057	}
2058	}
2059	}
2060
2061	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
2062
2063	##fixme: add another table to hold name/email for log table?
2064
2065	_log($dbh, (group_id => $group, entry => "Added user $username ($fname $lname)"));
2066	# once we get here, we should have suceeded.
2067	$dbh->commit;
2068	}; # end eval
2069
2070	if ($@) {
2071	my $msg = $@;
2072	eval { $dbh->rollback; };
2073	if ($config{log_failures}) {
2074	_log($dbh, (group_id => $group, entry => "Error adding user $username: $msg"));
2075	$dbh->commit; # since we enabled transactions earlier
2076	}
2077	return ('FAIL',"Error adding user $username: $msg");
2078	}
2079
2080	return ('OK',"User $username ($fname $lname) added");
2081	} # end addUser
2082
2083
2084	## DNSDB::checkUser()
2085	# Check user/pass combo on login
2086	sub checkUser {
2087	my $dbh = shift;
2088	my $user = shift;
2089	my $inpass = shift;
2090
2091	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
2092	$sth->execute($user);
2093	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
2094	my $loginfailed = 1 if !defined($uid);
2095
2096	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
2097	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
2098	} else {
2099	$loginfailed = 1 if $pass ne $inpass;
2100	}
2101
2102	# nnnngggg
2103	return ($uid, $gid);
2104	} # end checkUser
2105
2106
2107	## DNSDB:: updateUser()
2108	# Update general data about user
2109	sub updateUser {
2110	my $dbh = shift;
2111
2112	##fixme: tweak calling convention so that we can update any given bit of data
2113	my $uid = shift;
2114	my $username = shift;
2115	my $group = shift;
2116	my $pass = shift;
2117	my $state = shift;
2118	my $type = shift \|\| 'u';
2119	my $fname = shift \|\| $username;
2120	my $lname = shift \|\| '';
2121	my $phone = shift \|\| ''; # not going format-check
2122
2123	my $resultmsg = '';
2124
2125	# Allow transactions, and raise an exception on errors so we can catch it later.
2126	# Use local to make sure these get "reset" properly on exiting this block
2127	local $dbh->{AutoCommit} = 0;
2128	local $dbh->{RaiseError} = 1;
2129
2130	my $sth;
2131
2132	# Password can be left blank; if so we assume there's one on file.
2133	# Actual blank passwords are bad, mm'kay?
2134	if (!$pass) {
2135	($pass) = $dbh->selectrow_array("SELECT password FROM users WHERE user_id=?", undef, ($uid));
2136	} else {
2137	$pass = unix_md5_crypt($pass);
2138	}
2139
2140	eval {
2141	$dbh->do("UPDATE users SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?".
2142	" WHERE user_id=?", undef, ($username, $pass, $fname, $lname, $phone, $type, $state, $uid));
2143	$resultmsg = "Updated user info for $username ($fname $lname)";
2144	_log($dbh, group_id => $group, entry => $resultmsg);
2145	$dbh->commit;
2146	};
2147	if ($@) {
2148	my $msg = $@;
2149	eval { $dbh->rollback; };
2150	if ($config{log_failures}) {
2151	_log($dbh, (group_id => $group, entry => "Error updating user $username: $msg"));
2152	$dbh->commit; # since we enabled transactions earlier
2153	}
2154	return ('FAIL',"Error updating user $username: $msg");
2155	}
2156
2157	return ('OK',$resultmsg);
2158	} # end updateUser()
2159
2160
2161	## DNSDB::delUser()
2162	#
2163	sub delUser {
2164	my $dbh = shift;
2165	return ('FAIL',"Need database handle") if !$dbh;
2166	my $userid = shift;
2167	return ('FAIL',"Missing userid") if !defined($userid);
2168
2169	my $sth = $dbh->prepare("delete from users where user_id=?");
2170	$sth->execute($userid);
2171
2172	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
2173
2174	return ('OK','OK');
2175
2176	} # end delUser
2177
2178
2179	## DNSDB::userFullName()
2180	# Return a pretty string!
2181	# Takes a user_id and optional printf-ish string to indicate which pieces where:
2182	# %u for the username
2183	# %f for the first name
2184	# %l for the last name
2185	# All other text in the passed string will be left as-is.
2186	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
2187	sub userFullName {
2188	$errstr = '';
2189	my $dbh = shift;
2190	my $userid = shift;
2191	my $fullformat = shift \|\| '%f %l (%u)';
2192	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
2193	$sth->execute($userid);
2194	my ($uname,$fname,$lname) = $sth->fetchrow_array();
2195	$errstr = $DBI::errstr if !$uname;
2196
2197	$fullformat =~ s/\%u/$uname/g;
2198	$fullformat =~ s/\%f/$fname/g;
2199	$fullformat =~ s/\%l/$lname/g;
2200
2201	return $fullformat;
2202	} # end userFullName
2203
2204
2205	## DNSDB::userStatus()
2206	# Sets and/or returns a user's status
2207	# Takes a database handle, user ID and optionally a status argument
2208	# Returns undef on errors.
2209	sub userStatus {
2210	my $dbh = shift;
2211	my $id = shift;
2212	my $newstatus = shift;
2213
2214	return undef if $id !~ /^\d+$/;
2215
2216	my $sth;
2217
2218	# ooo, fun! let's see what we were passed for status
2219	if ($newstatus) {
2220	$sth = $dbh->prepare("update users set status=? where user_id=?");
2221	# ass-u-me caller knows what's going on in full
2222	if ($newstatus =~ /^[01]$/) { # only two valid for now.
2223	$sth->execute($newstatus,$id);
2224	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
2225	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
2226	}
2227	}
2228
2229	$sth = $dbh->prepare("select status from users where user_id=?");
2230	$sth->execute($id);
2231	my ($status) = $sth->fetchrow_array;
2232	return $status;
2233	} # end userStatus()
2234
2235
2236	## DNSDB::getUserData()
2237	# Get misc user data for display
2238	sub getUserData {
2239	my $dbh = shift;
2240	my $uid = shift;
2241
2242	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
2243	"FROM users WHERE user_id=?");
2244	$sth->execute($uid);
2245	return $sth->fetchrow_hashref();
2246
2247	} # end getUserData()
2248
2249
2250	## DNSDB::getSOA()
2251	# Return all suitable fields from an SOA record in separate elements of a hash
2252	# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
2253	sub getSOA {
2254	$errstr = '';
2255	my $dbh = shift;
2256	my $def = shift;
2257	my $rev = shift;
2258	my $id = shift;
2259	my %ret;
2260
2261	# (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
2262	# - should really attach serial to the zone parent somewhere
2263
2264	my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
2265	" WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
2266
2267	my $sth = $dbh->prepare($sql);
2268	$sth->execute($id);
2269	##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
2270
2271	my ($recid,$host,$val,$ttl) = $sth->fetchrow_array() or return;
2272	my ($contact,$prins) = split /:/, $host;
2273	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
2274
2275	$ret{recid} = $recid;
2276	$ret{ttl} = $ttl;
2277	# $ret{serial} = $serial; # ca't use distance for serial with default_rev_records
2278	$ret{prins} = $prins;
2279	$ret{contact} = $contact;
2280	$ret{refresh} = $refresh;
2281	$ret{retry} = $retry;
2282	$ret{expire} = $expire;
2283	$ret{minttl} = $minttl;
2284
2285	return %ret;
2286	} # end getSOA()
2287
2288
2289	## DNSDB::updateSOA()
2290	# Update the specified SOA record
2291	# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
2292	# Returns a two-element list with a result code and message
2293	sub updateSOA {
2294	my $dbh = shift;
2295	my $defrec = shift;
2296	my $revrec = shift;
2297
2298	my %soa = @_;
2299
2300	my %oldsoa = getSOA($dbh, $defrec, $revrec, $soa{recid});
2301
2302	# Allow transactions, and raise an exception on errors so we can catch it later.
2303	# Use local to make sure these get "reset" properly on exiting this block
2304	local $dbh->{AutoCommit} = 0;
2305	local $dbh->{RaiseError} = 1;
2306
2307	my $msg;
2308
2309	eval {
2310	##fixme: data validation: make sure {recid} is really the SOA for {parent}
2311	my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
2312	$dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
2313	$soa{ttl}, $soa{recid}) );
2314
2315	$msg = "Updated ".($defrec eq 'y' ? 'default ' : '')."SOA for ".
2316	($defrec eq 'y' ? groupName($dbh, $soa{recid}) :
2317	($revrec eq 'n' ? domainName($dbh, $soa{recid}) : revName($dbh, $soa{recid}) ) ).
2318	": (ns $oldsoa{prins}, contact $oldsoa{contact}, refresh $oldsoa{refresh},".
2319	" retry $oldsoa{retry}, expire $oldsoa{expire}, minTTL $oldsoa{minttl}, TTL $oldsoa{ttl}) to ".
2320	"(ns $soa{prins}, contact $soa{contact}, refresh $soa{refresh},".
2321	" retry $soa{retry}, expire $soa{expire}, minTTL $soa{minttl}, TTL $soa{ttl})";
2322
2323	# _log($dbh, (rdns_id => $rdns_id, user_id => $userinfo{id}, group_id => $group,
2324	# username => $userinfo{name}, entry => $msg) );
2325
2326	$dbh->commit;
2327	};
2328	if ($@) {
2329	$msg = $@;
2330	eval { $dbh->rollback; };
2331	return ('FAIL',$msg);
2332	} else {
2333	return ('OK', $msg);
2334	}
2335	} # end updateSOA()
2336
2337
2338	## DNSDB::getRecLine()
2339	# Return all data fields for a zone record in separate elements of a hash
2340	# Takes a database handle, default/live flag, forward/reverse flag, and record ID
2341	sub getRecLine {
2342	$errstr = '';
2343	my $dbh = shift;
2344	my $defrec = shift;
2345	my $revrec = shift;
2346	my $id = shift;
2347
2348	my $sql = "SELECT record_id,host,type,val,ttl".($revrec eq 'n' ? ',distance,weight,port' : '').
2349	(($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id FROM ').
2350	_rectable($defrec,$revrec)." WHERE record_id=?";
2351	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
2352
2353	if ($dbh->err) {
2354	$errstr = $DBI::errstr;
2355	return undef;
2356	}
2357
2358	if (!$ret) {
2359	$errstr = "No such record";
2360	return undef;
2361	}
2362
2363	# explicitly set a parent id
2364	if ($defrec eq 'y') {
2365	$ret->{parid} = $ret->{group_id};
2366	} else {
2367	$ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
2368	# and a secondary if we have a custom type that lives in both a forward and reverse zone
2369	$ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
2370	}
2371
2372	return $ret;
2373	}
2374
2375
2376	##fixme: should use above (getRecLine()) to get lines for below?
2377	## DNSDB::getDomRecs()
2378	# Return records for a domain
2379	# Takes a database handle, default/live flag, group/domain ID, start,
2380	# number of records, sort field, and sort order
2381	# Returns a reference to an array of hashes
2382	sub getDomRecs {
2383	$errstr = '';
2384	my $dbh = shift;
2385	my $def = shift;
2386	my $rev = shift;
2387	my $id = shift;
2388	my $nrecs = shift \|\| 'all';
2389	my $nstart = shift \|\| 0;
2390
2391	## for order, need to map input to column names
2392	my $order = shift \|\| 'host';
2393	my $direction = shift \|\| 'ASC';
2394
2395	my $filter = shift \|\| '';
2396
2397	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
2398	$sql .= ",r.distance,r.weight,r.port" if $rev eq 'n';
2399	$sql .= " FROM "._rectable($def,$rev)." r ";
2400	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
2401	$sql .= "WHERE "._recparent($def,$rev)." = ?";
2402	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
2403	$sql .= " AND host ~* ?" if $filter;
2404	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
2405	$sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
2406
2407	my @bindvars = ($id);
2408	push @bindvars, $filter if $filter;
2409
2410	# just to be ultraparanoid about SQL injection vectors
2411	if ($nstart ne 'all') {
2412	$sql .= " LIMIT ? OFFSET ?";
2413	push @bindvars, $nrecs;
2414	push @bindvars, ($nstart*$nrecs);
2415	}
2416	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
2417	$sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
2418
2419	my @retbase;
2420	while (my $ref = $sth->fetchrow_hashref()) {
2421	push @retbase, $ref;
2422	}
2423
2424	my $ret = \@retbase;
2425	return $ret;
2426	} # end getDomRecs()
2427
2428
2429	## DNSDB::getRecCount()
2430	# Return count of non-SOA records in zone (or default records in a group)
2431	# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
2432	# and optional filtering modifier
2433	# Returns the count
2434	sub getRecCount {
2435	my $dbh = shift;
2436	my $defrec = shift;
2437	my $revrec = shift;
2438	my $id = shift;
2439	my $filter = shift \|\| '';
2440
2441	# keep the nasties down, since we can't ?-sub this bit. :/
2442	# note this is chars allowed in DNS hostnames
2443	$filter =~ s/[^a-zA-Z0-9_.:-]//g;
2444
2445	my @bindvars = ($id);
2446	push @bindvars, $filter if $filter;
2447	my $sql = "SELECT count(*) FROM ".
2448	_rectable($defrec,$revrec).
2449	" WHERE "._recparent($defrec,$revrec)."=? ".
2450	"AND NOT type=$reverse_typemap{SOA}".
2451	($filter ? " AND host ~* ?" : '');
2452	my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
2453
2454	return $count;
2455
2456	} # end getRecCount()
2457
2458
2459	## DNSDB::addRec()
2460	# Add a new record to a domain or a group's default records
2461	# Takes a database handle, default/live flag, group/domain ID,
2462	# host, type, value, and TTL
2463	# Some types require additional detail: "distance" for MX and SRV,
2464	# and weight/port for SRV
2465	# Returns a status code and detail message in case of error
2466	##fixme: pass a hash with the record data, not a series of separate values
2467	sub addRec {
2468	$errstr = '';
2469	my $dbh = shift;
2470	my $defrec = shift;
2471	my $revrec = shift;
2472	my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
2473	# domain_id for domain records)
2474
2475	my $host = shift;
2476	my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
2477	my $val = shift;
2478	my $ttl = shift;
2479
2480	# prep for validation
2481	my $addr = NetAddr::IP->new($$val);
2482	$$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
2483
2484	my $domid = 0;
2485	my $revid = 0;
2486
2487	my $retcode = 'OK'; # assume everything will go OK
2488	my $retmsg = '';
2489
2490	# do simple validation first
2491	return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
2492
2493	# Quick check on hostname parts. Note the regex is more forgiving than the error message;
2494	# domain names technically are case-insensitive, and we use printf-like % codes for a couple
2495	# of types. Other things may also be added to validate default records of several flavours.
2496	return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z . _)")
2497	if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.-]+$/i;
2498
2499	# Collect these even if we're only doing a simple A record so we can call any validation sub
2500	my $dist = shift;
2501	my $weight = shift;
2502	my $port = shift;
2503
2504	my $fields;
2505	my @vallist;
2506
2507	# Call the validation sub for the type requested.
2508	($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec, id => $id,
2509	host => $host, rectype => $rectype, val => $val, addr => $addr,
2510	dist => \$dist, port => \$port, weight => \$weight,
2511	fields => \$fields, vallist => \@vallist) );
2512
2513	return ($retcode,$retmsg) if $retcode eq 'FAIL';
2514
2515	# Set up database fields and bind parameters
2516	$fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
2517	push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
2518	my $vallen = '?'.(',?'x$#vallist);
2519
2520	# Put together the success log entry. We have to use this horrible kludge
2521	# because domain_id and rdns_id may or may not be present, and if they are,
2522	# they're not at a guaranteed consistent index in the array. wheee!
2523	my %logdata;
2524	my @ftmp = split /,/, $fields;
2525	for (my $i=0; $i <= $#vallist; $i++) {
2526	$logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
2527	$logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
2528	}
2529	$logdata{group_id} = $id if $defrec eq 'y';
2530	$logdata{group_id} = parentID($dbh,
2531	(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
2532	if $defrec eq 'n';
2533	$logdata{entry} = "Added ".($defrec eq 'y' ? 'default record' : 'record')." '$$host $typemap{$$rectype} $$val";
2534	$logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
2535	$logdata{entry} .= " [priority $dist] [weight $weight] [port $port]"
2536	if $typemap{$$rectype} eq 'SRV';
2537	$logdata{entry} .= "', TTL $ttl";
2538
2539	# Allow transactions, and raise an exception on errors so we can catch it later.
2540	# Use local to make sure these get "reset" properly on exiting this block
2541	local $dbh->{AutoCommit} = 0;
2542	local $dbh->{RaiseError} = 1;
2543
2544	eval {
2545	$dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
2546	undef, @vallist);
2547	_log($dbh, %logdata);
2548	$dbh->commit;
2549	};
2550	if ($@) {
2551	my $msg = $@;
2552	eval { $dbh->rollback; };
2553	if ($config{log_failures}) {
2554	$logdata{entry} = "Failed adding ".($defrec eq 'y' ? 'default ' : '').
2555	"record '$$host $typemap{$$rectype} $$val', TTL $ttl ($msg)";
2556	_log($dbh, %logdata);
2557	$dbh->commit;
2558	}
2559	return ('FAIL',$msg);
2560	}
2561
2562	$resultstr = $logdata{entry};
2563	return ($retcode, $retmsg);
2564
2565	} # end addRec()
2566
2567
2568	## DNSDB::updateRec()
2569	# Update a record
2570	# Takes a database handle, default and reverse flags, record ID, immediate parent ID, and new record data.
2571	# Returns a status code and message
2572	sub updateRec {
2573	$errstr = '';
2574
2575	my $dbh = shift;
2576	my $defrec = shift;
2577	my $revrec = shift;
2578	my $id = shift;
2579	my $parid = shift; # immediate parent entity that we're descending from to update the record
2580
2581	# all records have these
2582	my $host = shift;
2583	my $hostbk = $$host; # Keep a backup copy of the original, so we can WARN if the update mangles the domain
2584	my $rectype = shift;
2585	my $val = shift;
2586	my $ttl = shift;
2587
2588	# prep for validation
2589	my $addr = NetAddr::IP->new($$val);
2590	$$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
2591
2592	my $domid = 0;
2593	my $revid = 0;
2594
2595	my $retcode = 'OK'; # assume everything will go OK
2596	my $retmsg = '';
2597
2598	# do simple validation first
2599	return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
2600
2601	# Quick check on hostname parts. Note the regex is more forgiving than the error message;
2602	# domain names technically are case-insensitive, and we use printf-like % codes for a couple
2603	# of types. Other things may also be added to validate default records of several flavours.
2604	return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z - . _)")
2605	if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.-]+$/i;
2606
2607	# only MX and SRV will use these
2608	my $dist = shift \|\| 0;
2609	my $weight = shift \|\| 0;
2610	my $port = shift \|\| 0;
2611
2612	my $fields;
2613	my @vallist;
2614
2615	# get old record data so we have the right parent ID
2616	# and for logging (eventually)
2617	my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
2618
2619	# Call the validation sub for the type requested.
2620	# Note the ID to pass here is the parent, not the record
2621	($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec,
2622	id => ($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})),
2623	host => $host, rectype => $rectype, val => $val, addr => $addr,
2624	dist => \$dist, port => \$port, weight => \$weight,
2625	fields => \$fields, vallist => \@vallist,
2626	update => $id) );
2627
2628	return ($retcode,$retmsg) if $retcode eq 'FAIL';
2629
2630	# Set up database fields and bind parameters. Note only the optional fields
2631	# (distance, weight, port, secondary parent ID) are added in the validation call above
2632	$fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
2633	push @vallist, ($$host,$$rectype,$$val,$ttl,
2634	($defrec eq 'y' ? $oldrec->{group_id} : ($revrec eq 'n' ? $oldrec->{domain_id} : $oldrec->{rdns_id})) );
2635
2636	# hack hack PTHUI
2637	# need to forcibly make sure we disassociate a record with a parent it's no longer related to.
2638	# eg, PTR records may not have a domain parent, or A/AAAA records may not have a revzone parent.
2639	# mainly needed for crossover types that got coerced down to "standard" types
2640	if ($defrec eq 'n') {
2641	if ($$rectype == $reverse_typemap{PTR}) {
2642	$fields .= ",domain_id";
2643	push @vallist, 0;
2644	}
2645	if ($$rectype == $reverse_typemap{A} \|\| $$rectype == $reverse_typemap{AAAA}) {
2646	$fields .= ",rdns_id";
2647	push @vallist, 0;
2648	}
2649	}
2650
2651	# Fiddle the field list into something suitable for updates
2652	$fields =~ s/,/=?,/g;
2653	$fields .= "=?";
2654
2655	# Put together the success log entry. Horrible kludge from addRec() copied as-is since
2656	# we don't know whether the passed arguments or retrieved values for domain_id and rdns_id
2657	# will be maintained (due to "not-in-zone" validation changes)
2658	my %logdata;
2659	my @ftmp = split /,/, $fields;
2660	for (my $i=0; $i <= $#vallist; $i++) {
2661	$logdata{domain_id} = $vallist[$i] if $ftmp[$i] eq 'domain_id';
2662	$logdata{rdns_id} = $vallist[$i] if $ftmp[$i] eq 'rdns_id';
2663	}
2664	$logdata{group_id} = $parid if $defrec eq 'y';
2665	$logdata{group_id} = parentID($dbh,
2666	(id => $parid, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
2667	if $defrec eq 'n';
2668	$logdata{entry} = "Updated ".($defrec eq 'y' ? 'default record' : 'record')." from\n".
2669	"'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
2670	$logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
2671	$logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
2672	if $typemap{$oldrec->{type}} eq 'SRV';
2673	$logdata{entry} .= "', TTL $oldrec->{ttl}\nto\n'$$host $typemap{$$rectype} $$val";
2674	$logdata{entry} .= " [distance $dist]" if $typemap{$$rectype} eq 'MX';
2675	$logdata{entry} .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$$rectype} eq 'SRV';
2676	$logdata{entry} .= "', TTL $ttl";
2677
2678	local $dbh->{AutoCommit} = 0;
2679	local $dbh->{RaiseError} = 1;
2680
2681	eval {
2682	$dbh->do("UPDATE "._rectable($defrec,$revrec)." SET $fields WHERE record_id=?", undef, (@vallist, $id) );
2683	_log($dbh, %logdata);
2684	$dbh->commit;
2685	};
2686	if ($@) {
2687	my $msg = $@;
2688	eval { $dbh->rollback; };
2689	if ($config{log_failures}) {
2690	$logdata{entry} = "Failed updating ".($defrec eq 'y' ? 'default ' : '').
2691	"record '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
2692	_log($dbh, %logdata);
2693	$dbh->commit;
2694	}
2695	return ('FAIL', $msg);
2696	}
2697
2698	$resultstr = $logdata{entry};
2699	return ($retcode, $retmsg);
2700	} # end updateRec()
2701
2702
2703	## DNSDB::delRec()
2704	# Delete a record.
2705	sub delRec {
2706	$errstr = '';
2707	my $dbh = shift;
2708	my $defrec = shift;
2709	my $revrec = shift;
2710	my $id = shift;
2711
2712	my $oldrec = getRecLine($dbh, $defrec, $revrec, $id);
2713
2714	# Allow transactions, and raise an exception on errors so we can catch it later.
2715	# Use local to make sure these get "reset" properly on exiting this block
2716	local $dbh->{AutoCommit} = 0;
2717	local $dbh->{RaiseError} = 1;
2718
2719	# Put together the log entry
2720	my %logdata;
2721	$logdata{domain_id} = $oldrec->{domain_id};
2722	$logdata{rdns_id} = $oldrec->{rdns_id};
2723	$logdata{group_id} = $oldrec->{group_id} if $defrec eq 'y';
2724	$logdata{group_id} = parentID($dbh,
2725	(id => $oldrec->{domain_id}, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) )
2726	if $defrec eq 'n';
2727	$logdata{entry} = "Deleted ".($defrec eq 'y' ? 'default record ' : 'record ').
2728	"'$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}";
2729	$logdata{entry} .= " [distance $oldrec->{distance}]" if $typemap{$oldrec->{type}} eq 'MX';
2730	$logdata{entry} .= " [priority $oldrec->{distance}] [weight $oldrec->{weight}] [port $oldrec->{port}]"
2731	if $typemap{$oldrec->{type}} eq 'SRV';
2732	$logdata{entry} .= "', TTL $oldrec->{ttl}\n";
2733
2734	eval {
2735	my $sth = $dbh->do("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?", undef, ($id));
2736	_log($dbh, %logdata);
2737	$dbh->commit;
2738	};
2739	if ($@) {
2740	my $msg = $@;
2741	eval { $dbh->rollback; };
2742	if ($config{log_failures}) {
2743	$logdata{entry} = "Error deleting ".($defrec eq 'y' ? 'default record' : 'record').
2744	" '$oldrec->{host} $typemap{$oldrec->{type}} $oldrec->{val}', TTL $oldrec->{ttl} ($msg)";
2745	_log($dbh, %logdata);
2746	$dbh->commit;
2747	}
2748	return ('FAIL', $msg);
2749	}
2750
2751	return ('OK',$logdata{entry});
2752	} # end delRec()
2753
2754
2755	# Reference hashes.
2756	my %par_tbl = (
2757	group => 'groups',
2758	user => 'users',
2759	defrec => 'default_records',
2760	defrevrec => 'default_rev_records',
2761	domain => 'domains',
2762	revzone => 'revzones',
2763	record => 'records'
2764	);
2765	my %id_col = (
2766	group => 'group_id',
2767	user => 'user_id',
2768	defrec => 'record_id',
2769	defrevrec => 'record_id',
2770	domain => 'domain_id',
2771	revzone => 'rdns_id',
2772	record => 'record_id'
2773	);
2774	my %par_col = (
2775	group => 'parent_group_id',
2776	user => 'group_id',
2777	defrec => 'group_id',
2778	defrevrec => 'group_id',
2779	domain => 'group_id',
2780	revzone => 'group_id',
2781	record => 'domain_id'
2782	);
2783	my %par_type = (
2784	group => 'group',
2785	user => 'group',
2786	defrec => 'group',
2787	defrevrec => 'group',
2788	domain => 'group',
2789	revzone => 'group',
2790	record => 'domain'
2791	);
2792
2793
2794	## DNSDB::getTypelist()
2795	# Get a list of record types for various UI dropdowns
2796	# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
2797	# Returns an arrayref to list of hashrefs perfect for HTML::Template
2798	sub getTypelist {
2799	my $dbh = shift;
2800	my $recgroup = shift;
2801	my $type = shift \|\| $reverse_typemap{A};
2802
2803	# also accepting $webvar{revrec}!
2804	$recgroup = 'f' if $recgroup eq 'n';
2805	$recgroup = 'r' if $recgroup eq 'y';
2806
2807	my $sql = "SELECT val,name FROM rectypes WHERE ";
2808	if ($recgroup eq 'r') {
2809	# reverse zone types
2810	$sql .= "stdflag=2 OR stdflag=3";
2811	} elsif ($recgroup eq 'l') {
2812	# DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
2813	$sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
2814	} else {
2815	# default; forward zone types. technically $type eq 'f' but not worth the error message.
2816	$sql .= "stdflag=1 OR stdflag=2";
2817	}
2818	$sql .= " ORDER BY listorder";
2819
2820	my $sth = $dbh->prepare($sql);
2821	$sth->execute;
2822	my @typelist;
2823	while (my ($rval,$rname) = $sth->fetchrow_array()) {
2824	my %row = ( recval => $rval, recname => $rname );
2825	$row{tselect} = 1 if $rval == $type;
2826	push @typelist, \%row;
2827	}
2828
2829	# Add SOA on lookups since it's not listed in other dropdowns.
2830	if ($recgroup eq 'l') {
2831	my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
2832	$row{tselect} = 1 if $reverse_typemap{SOA} == $type;
2833	push @typelist, \%row;
2834	}
2835
2836	return \@typelist;
2837	} # end getTypelist()
2838
2839
2840	## DNSDB::parentID()
2841	# Get ID of entity that is nearest parent to requested id
2842	# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
2843	# (domain/reverse zone or group), and optional default/live and forward/reverse flags
2844	# Returns the ID or undef on failure
2845	sub parentID {
2846	my $dbh = shift;
2847
2848	my %args = @_;
2849
2850	# clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
2851	$args{partype} = 'group' if !$args{partype};
2852	$args{partype} = 'domain' if $args{partype} eq 'revzone';
2853
2854	# clean up defrec and revrec. default to live record, forward zone
2855	$args{defrec} = 'n' if !$args{defrec};
2856	$args{revrec} = 'n' if !$args{revrec};
2857
2858	if ($par_type{$args{partype}} eq 'domain') {
2859	# only live records can have a domain/zone parent
2860	return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
2861	my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
2862	" FROM records WHERE record_id = ?",
2863	undef, ($args{id}) ) or return;
2864	return $result;
2865	} else {
2866	# snag some arguments that will either fall through or be overwritten to save some code duplication
2867	my $tmpid = $args{id};
2868	my $type = $args{type};
2869	if ($type eq 'record' && $args{defrec} eq 'n') {
2870	# Live records go through the records table first.
2871	($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
2872	" FROM records WHERE record_id = ?",
2873	undef, ($args{id}) ) or return;
2874	$type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
2875	}
2876	my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
2877	undef, ($tmpid) );
2878	return $result;
2879	}
2880	# should be impossible to get here with even remotely sane arguments
2881	return;
2882	} # end parentID()
2883
2884
2885	## DNSDB::isParent()
2886	# Returns true if $id1 is a parent of $id2, false otherwise
2887	sub isParent {
2888	my $dbh = shift;
2889	my $id1 = shift;
2890	my $type1 = shift;
2891	my $id2 = shift;
2892	my $type2 = shift;
2893	##todo: immediate, secondary, full (default)
2894
2895	# Return false on invalid types
2896	return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
2897	return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
2898
2899	# Return false on impossible relations
2900	return 0 if $type1 eq 'record'; # nothing may be a child of a record
2901	return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
2902	return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
2903	return 0 if $type1 eq 'user'; # nothing may be child of a user
2904	return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
2905	return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
2906
2907	# ennnhhhh.... if we're passed an id of 0, it will never be found. usual
2908	# case would be the UI creating a new <thing>, and so we don't have an ID for
2909	# <thing> to look up yet. in that case the UI should check the parent as well.
2910	return 0 if $id1 == 0; # nothing can have a parent id of 0
2911	return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
2912
2913	# group 1 is the ultimate root parent
2914	return 1 if $type1 eq 'group' && $id1 == 1;
2915
2916	# groups are always (a) parent of themselves
2917	return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
2918
2919	my $id = $id2;
2920	my $type = $type2;
2921	my $foundparent = 0;
2922
2923	# Records are the only entity with two possible parents. We need to split the parent checks on
2924	# domain/rdns.
2925	if ($type eq 'record') {
2926	my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
2927	undef, ($id));
2928	# check immediate parent against request
2929	return 1 if $type1 eq 'domain' && $id1 == $dom;
2930	return 1 if $type1 eq 'revzone' && $id1 == $rdns;
2931	# if request is group, check both parents. Only check if the parent is nonzero though.
2932	return 1 if $dom && isParent($dbh, $id1, $type1, $dom, 'domain');
2933	return 1 if $rdns && isParent($dbh, $id1, $type1, $rdns, 'revzone');
2934	# exit here since we've executed the loop below by proxy in the above recursive calls.
2935	return 0;
2936	}
2937
2938	# almost the same loop as getParents() above
2939	my $limiter = 0;
2940	while (1) {
2941	my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
2942	my $result = $dbh->selectrow_hashref($sql,
2943	undef, ($id) );
2944	if (!$result) {
2945	$limiter++;
2946	##fixme: how often will this happen on a live site? fail at max limiter <n>?
2947	warn "no results looking for $sql with id $id (depth $limiter)\n";
2948	last;
2949	}
2950	if ($result && $result->{$par_col{$type}} == $id1) {
2951	$foundparent = 1;
2952	last;
2953	} else {
2954	##fixme: do we care about trying to return a "no such record/domain/user/group" error?
2955	# should be impossible to create an inconsistent DB just with API calls.
2956	warn $dbh->errstr." $sql, $id" if $dbh->errstr;
2957	}
2958	# group 1 is its own parent. need this here more to break strange loops than for detecting a parent
2959	last if $result->{$par_col{$type}} == 1;
2960	$id = $result->{$par_col{$type}};
2961	$type = $par_type{$type};
2962	}
2963
2964	return $foundparent;
2965	} # end isParent()
2966
2967
2968	## DNSDB::zoneStatus()
2969	# Returns and optionally sets a zone's status
2970	# Takes a database handle, domain/revzone ID, forward/reverse flag, and optionally a status argument
2971	# Returns status, or undef on errors.
2972	sub zoneStatus {
2973	my $dbh = shift;
2974	my $id = shift;
2975	my $revrec = shift;
2976	my $newstatus = shift \|\| 'mu';
2977
2978	return undef if $id !~ /^\d+$/;
2979
2980	# Allow transactions, and raise an exception on errors so we can catch it later.
2981	# Use local to make sure these get "reset" properly on exiting this block
2982	local $dbh->{AutoCommit} = 0;
2983	local $dbh->{RaiseError} = 1;
2984
2985	if ($newstatus ne 'mu') {
2986	# ooo, fun! let's see what we were passed for status
2987	eval {
2988	$newstatus = 0 if $newstatus eq 'domoff';
2989	$newstatus = 1 if $newstatus eq 'domon';
2990	$dbh->do("UPDATE ".($revrec eq 'n' ? 'domains' : 'revzones')." SET status=? WHERE ".
2991	($revrec eq 'n' ? 'domain_id' : 'rdns_id')."=?", undef, ($newstatus,$id) );
2992
2993	##fixme switch to more consise "Enabled <domain"/"Disabled <domain>" as with users?
2994	$resultstr = "Changed ".($revrec eq 'n' ? domainName($dbh, $id) : revName($dbh, $id)).
2995	" state to ".($newstatus ? 'active' : 'inactive');
2996
2997	my %loghash;
2998	$loghash{domain_id} = $id if $revrec eq 'n';
2999	$loghash{rdns_id} = $id if $revrec eq 'y';
3000	$loghash{group_id} = parentID($dbh,
3001	(id => $id, type => ($revrec eq 'n' ? 'domain' : 'revzone'), revrec => $revrec) );
3002	$loghash{entry} = $resultstr;
3003	_log($dbh, %loghash);
3004
3005	$dbh->commit;
3006	};
3007	if ($@) {
3008	my $msg = $@;
3009	eval { $dbh->rollback; };
3010	$resultstr = '';
3011	$errstr = $msg;
3012	return;
3013	}
3014	}
3015
3016	my ($status) = $dbh->selectrow_array("SELECT status FROM ".
3017	($revrec eq 'n' ? "domains WHERE domain_id=?" : "revzones WHERE rdns_id=?"),
3018	undef, ($id) );
3019	return $status;
3020	} # end zoneStatus()
3021
3022
3023	## DNSDB::importAXFR
3024	# Import a domain via AXFR
3025	# Takes AXFR host, domain to transfer, group to put the domain in,
3026	# and optionally:
3027	# - active/inactive state flag (defaults to active)
3028	# - overwrite-SOA flag (defaults to off)
3029	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
3030	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
3031	# if status is OK, but WARN includes conditions that are not fatal but should
3032	# really be reported.
3033	sub importAXFR {
3034	my $dbh = shift;
3035	my $ifrom_in = shift;
3036	my $domain = shift;
3037	my $group = shift;
3038	my $status = shift \|\| 1;
3039	my $rwsoa = shift \|\| 0;
3040	my $rwns = shift \|\| 0;
3041
3042	##fixme: add mode to delete&replace, merge+overwrite, merge new?
3043
3044	my $nrecs = 0;
3045	my $soaflag = 0;
3046	my $nsflag = 0;
3047	my $warnmsg = '';
3048	my $ifrom;
3049
3050	# choke on possible bad setting in ifrom
3051	# IPv4 and v6, and valid hostnames!
3052	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
3053	return ('FAIL', "Bad AXFR source host $ifrom")
3054	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
3055
3056	# Allow transactions, and raise an exception on errors so we can catch it later.
3057	# Use local to make sure these get "reset" properly on exiting this block
3058	local $dbh->{AutoCommit} = 0;
3059	local $dbh->{RaiseError} = 1;
3060
3061	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
3062	my $dom_id;
3063
3064	# quick check to start to see if we've already got one
3065	$sth->execute($domain);
3066	($dom_id) = $sth->fetchrow_array;
3067
3068	return ('FAIL', "Domain already exists") if $dom_id;
3069
3070	eval {
3071	# can't do this, can't nest transactions. sigh.
3072	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
3073
3074	##fixme: serial
3075	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
3076	$sth->execute($domain,$group,$status);
3077
3078	## bizarre DBI<->Net::DNS interaction bug:
3079	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
3080	## fixed, apparently I was doing something odd, but not certain what it was that
3081	## caused a commit instead of barfing
3082
3083	# get domain id so we can do the records
3084	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
3085	$sth->execute($domain);
3086	($dom_id) = $sth->fetchrow_array();
3087
3088	my $res = Net::DNS::Resolver->new;
3089	$res->nameservers($ifrom);
3090	$res->axfr_start($domain)
3091	or die "Couldn't begin AXFR\n";
3092
3093	while (my $rr = $res->axfr_next()) {
3094	my $type = $rr->type;
3095
3096	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
3097	my $vallen = "?,?,?,?,?";
3098
3099	$soaflag = 1 if $type eq 'SOA';
3100	$nsflag = 1 if $type eq 'NS';
3101
3102	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
3103
3104	# "Primary" types:
3105	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
3106	# maybe KEY
3107
3108	# nasty big ugly case-like thing here, since we have to do some different
3109	# processing depending on the record. le sigh.
3110
3111	##fixme: what record types other than TXT can/will have >255-byte payloads?
3112
3113	if ($type eq 'A') {
3114	push @vallist, $rr->address;
3115	} elsif ($type eq 'NS') {
3116	# hmm. should we warn here if subdomain NS'es are left alone?
3117	next if ($rwns && ($rr->name eq $domain));
3118	push @vallist, $rr->nsdname;
3119	$nsflag = 1;
3120	} elsif ($type eq 'CNAME') {
3121	push @vallist, $rr->cname;
3122	} elsif ($type eq 'SOA') {
3123	next if $rwsoa;
3124	$vallist[1] = $rr->mname.":".$rr->rname;
3125	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
3126	$soaflag = 1;
3127	} elsif ($type eq 'PTR') {
3128	push @vallist, $rr->ptrdname;
3129	# hmm. PTR records should not be in forward zones.
3130	} elsif ($type eq 'MX') {
3131	$sql .= ",distance";
3132	$vallen .= ",?";
3133	push @vallist, $rr->exchange;
3134	push @vallist, $rr->preference;
3135	} elsif ($type eq 'TXT') {
3136	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
3137	## but don't really seem enthusiastic about it.
3138	my $rrdata = $rr->txtdata;
3139	push @vallist, $rrdata;
3140	} elsif ($type eq 'SPF') {
3141	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
3142	my $rrdata = $rr->txtdata;
3143	push @vallist, $rrdata;
3144	} elsif ($type eq 'AAAA') {
3145	push @vallist, $rr->address;
3146	} elsif ($type eq 'SRV') {
3147	$sql .= ",distance,weight,port" if $type eq 'SRV';
3148	$vallen .= ",?,?,?" if $type eq 'SRV';
3149	push @vallist, $rr->target;
3150	push @vallist, $rr->priority;
3151	push @vallist, $rr->weight;
3152	push @vallist, $rr->port;
3153	} elsif ($type eq 'KEY') {
3154	# we don't actually know what to do with these...
3155	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
3156	} else {
3157	my $rrdata = $rr->rdatastr;
3158	push @vallist, $rrdata;
3159	# Finding a different record type is not fatal.... just problematic.
3160	# We may not be able to export it correctly.
3161	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
3162	}
3163
3164	# BIND supports:
3165	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
3166	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
3167	# ... if one can ever find the right magic to format them correctly
3168
3169	# Net::DNS supports:
3170	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
3171	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
3172	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
3173
3174	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
3175	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
3176
3177	$nrecs++;
3178
3179	} # while axfr_next
3180
3181	# Overwrite SOA record
3182	if ($rwsoa) {
3183	$soaflag = 1;
3184	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
3185	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
3186	$sthgetsoa->execute($group,$reverse_typemap{SOA});
3187	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
3188	$host =~ s/DOMAIN/$domain/g;
3189	$val =~ s/DOMAIN/$domain/g;
3190	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
3191	}
3192	}
3193
3194	# Overwrite NS records
3195	if ($rwns) {
3196	$nsflag = 1;
3197	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
3198	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
3199	$sthgetns->execute($group,$reverse_typemap{NS});
3200	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
3201	$host =~ s/DOMAIN/$domain/g;
3202	$val =~ s/DOMAIN/$domain/g;
3203	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
3204	}
3205	}
3206
3207	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
3208	die "Bad zone: No SOA record!\n" if !$soaflag;
3209	die "Bad zone: No NS records!\n" if !$nsflag;
3210
3211	$dbh->commit;
3212
3213	};
3214
3215	if ($@) {
3216	my $msg = $@;
3217	eval { $dbh->rollback; };
3218	return ('FAIL',$msg." $warnmsg");
3219	} else {
3220	return ('WARN', $warnmsg) if $warnmsg;
3221	return ('OK',"Imported OK");
3222	}
3223
3224	# it should be impossible to get here.
3225	return ('WARN',"OOOK!");
3226	} # end importAXFR()
3227
3228
3229	## DNSDB::export()
3230	# Export the DNS database, or a part of it
3231	# Takes database handle, export type, optional arguments depending on type
3232	# Writes zone data to targets as appropriate for type
3233	sub export {
3234	my $dbh = shift;
3235	my $target = shift;
3236
3237	if ($target eq 'tiny') {
3238	__export_tiny($dbh,@_);
3239	}
3240	# elsif ($target eq 'foo') {
3241	# __export_foo($dbh,@_);
3242	#}
3243	# etc
3244
3245	} # end export()
3246
3247
3248	## DNSDB::__export_tiny
3249	# Internal sub to implement tinyDNS (compatible) export
3250	# Takes database handle, filehandle to write export to, optional argument(s)
3251	# to determine which data gets exported
3252	sub __export_tiny {
3253	my $dbh = shift;
3254	my $datafile = shift;
3255
3256	##fixme: slurp up further options to specify particular zone(s) to export
3257
3258	## Convert a bare number into an octal-coded pair of octets.
3259	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
3260	sub octalize {
3261	my $tmp = shift;
3262	my $srctype = shift \|\| 'h'; # default assumes hex string
3263	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
3264	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
3265	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
3266	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
3267	}
3268
3269	##fixme: fail if $datafile isn't an open, writable file
3270
3271	# easy case - export all evarything
3272	# not-so-easy case - export item(s) specified
3273	# todo: figure out what kind of list we use to export items
3274
3275	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
3276	my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl ".
3277	"FROM records WHERE domain_id=?");
3278	$domsth->execute();
3279	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
3280	$recsth->execute($domid);
3281	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $recsth->fetchrow_array) {
3282	##fixme: need to store location in the db, and retrieve it here.
3283	# temporarily hardcoded to empty so we can include it further down.
3284	my $loc = '';
3285
3286	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
3287	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
3288	# timestamps are TAI64
3289	# ~~ 2^62 + time()
3290	my $stamp = '';
3291
3292	# raw packet in unknown format: first byte indicates length
3293	# of remaining data, allows up to 255 raw bytes
3294
3295	##fixme? append . to all host/val hostnames
3296	if ($typemap{$type} eq 'SOA') {
3297
3298	# host contains pri-ns:responsible
3299	# val is abused to contain refresh:retry:expire:minttl
3300	##fixme: "manual" serial vs tinydns-autoserial
3301	# let's be explicit about abusing $host and $val
3302	my ($email, $primary) = (split /:/, $host)[0,1];
3303	my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
3304	print $datafile "Z$dom:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
3305
3306	} elsif ($typemap{$type} eq 'A') {
3307
3308	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
3309
3310	} elsif ($typemap{$type} eq 'NS') {
3311
3312	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
3313
3314	} elsif ($typemap{$type} eq 'AAAA') {
3315
3316	print $datafile ":$host:28:";
3317	my $altgrp = 0;
3318	my @altconv;
3319	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
3320	foreach (split /:/, $val) {
3321	if (/^$/) {
3322	# flag blank entry; this is a series of 0's of (currently) unknown length
3323	$altconv[$altgrp++] = 's';
3324	} else {
3325	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
3326	$altconv[$altgrp++] = octalize($_)
3327	}
3328	}
3329	foreach my $octet (@altconv) {
3330	# if not 's', output
3331	print $datafile $octet unless $octet =~ /^s$/;
3332	# if 's', output (9-array length)x literal '\000\000'
3333	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
3334	}
3335	print $datafile ":$ttl:$stamp:$loc\n";
3336
3337	} elsif ($typemap{$type} eq 'MX') {
3338
3339	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
3340
3341	} elsif ($typemap{$type} eq 'TXT') {
3342
3343	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
3344	$val =~ s/:/\\072/g; # may need to replace other symbols
3345	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
3346
3347	# by-hand TXT
3348	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
3349	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
3350	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
3351
3352	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
3353	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
3354
3355	# very long TXT record as brought in by axfr-get
3356	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
3357	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
3358	#:longtxt.deepnet.cx:16:
3359	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
3360	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
3361	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
3362	#:3600
3363
3364	} elsif ($typemap{$type} eq 'CNAME') {
3365
3366	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
3367
3368	} elsif ($typemap{$type} eq 'SRV') {
3369
3370	# data is two-byte values for priority, weight, port, in that order,
3371	# followed by length/string data
3372
3373	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
3374
3375	$val .= '.' if $val !~ /\.$/;
3376	foreach (split /\./, $val) {
3377	printf $datafile "\\%0.3o%s", length($_), $_;
3378	}
3379	print $datafile "\\000:$ttl:$stamp:$loc\n";
3380
3381	} elsif ($typemap{$type} eq 'RP') {
3382
3383	# RP consists of two mostly free-form strings.
3384	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
3385	# The second is the "hostname" of a TXT record with more info.
3386	print $datafile ":$host:17:";
3387	my ($who,$what) = split /\s/, $val;
3388	foreach (split /\./, $who) {
3389	printf $datafile "\\%0.3o%s", length($_), $_;
3390	}
3391	print $datafile '\000';
3392	foreach (split /\./, $what) {
3393	printf $datafile "\\%0.3o%s", length($_), $_;
3394	}
3395	print $datafile "\\000:$ttl:$stamp:$loc\n";
3396
3397	} elsif ($typemap{$type} eq 'PTR') {
3398
3399	# must handle both IPv4 and IPv6
3400	##work
3401	# data should already be in suitable reverse order.
3402	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
3403
3404	} else {
3405	# raw record. we don't know what's in here, so we ASS-U-ME the user has
3406	# put it in correctly, since either the user is messing directly with the
3407	# database, or the record was imported via AXFR
3408	# <split by char>
3409	# convert anything not a-zA-Z0-9.- to octal coding
3410
3411	##fixme: add flag to export "unknown" record types - note we'll probably end up
3412	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
3413	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
3414
3415	} # record type if-else
3416
3417	} # while ($recsth)
3418	} # while ($domsth)
3419	} # end __export_tiny()
3420
3421
3422	## DNSDB::mailNotify()
3423	# Sends notification mail to recipients regarding a DNSDB operation
3424	sub mailNotify {
3425	my $dbh = shift;
3426	my ($subj,$message) = @_;
3427
3428	return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
3429
3430	my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
3431
3432	my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
3433
3434	$mailer->mail($mailsender);
3435	$mailer->to($config{mailnotify});
3436	$mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
3437	"To: <$config{mailnotify}>\n",
3438	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
3439	"Subject: $subj\n",
3440	"X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
3441	"Organization: $config{orgname}\n",
3442	"\n$message\n");
3443	$mailer->quit;
3444	}
3445
3446	# shut Perl up
3447	1;

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