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source: branches/stable/DNSDB.pm@ 544

Last change on this file since 544 was 544, checked in by Kris Deugau, 10 years ago

/branches/stable

Merge reverse DNS work; 1 of mumble

from branch creation through r261

Minor conflicts in dns.cgi and DNSDB.pm

Property svn:keywords set to Date Rev Author Id

File size: 98.3 KB

Line
1	# dns/trunk/DNSDB.pm
2	# Abstraction functions for DNS administration
3	##
4	# $Id: DNSDB.pm 544 2013-12-10 22:15:56Z 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 = "1.0.5"; ##VERSION##
35	@ISA = qw(Exporter);
36	@EXPORT_OK = qw(
37	&initGlobals
38	&initPermissions &getPermissions &changePermissions &comparePermissions
39	&changeGroup
40	&loadConfig &connectDB &finish
41	&addDomain &delDomain &domainName &revName &domainID &addRDNS
42	&getZoneCount &getZoneList
43	&addGroup &delGroup &getChildren &groupName
44	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
45	&getSOA &getRecLine &getDomRecs &getRecCount
46	&addRec &updateRec &delRec
47	&getTypelist
48	&parentID
49	&isParent
50	&domStatus &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
60	&initPermissions &getPermissions &changePermissions &comparePermissions
61	&changeGroup
62	&loadConfig &connectDB &finish
63	&addDomain &delDomain &domainName &revName &domainID &addRDNS
64	&getZoneCount &getZoneList
65	&addGroup &delGroup &getChildren &groupName
66	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
67	&getSOA &getRecLine &getDomRecs &getRecCount
68	&addRec &updateRec &delRec
69	&getTypelist
70	&parentID
71	&isParent
72	&domStatus &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
83	# Halfway sane defaults for SOA, TTL, etc.
84	# serial defaults to 0 for convenience.
85	# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
86	our %def = qw (
87	contact hostmaster.DOMAIN
88	prins ns1.myserver.com
89	serial 0
90	soattl 86400
91	refresh 10800
92	retry 3600
93	expire 604800
94	minttl 10800
95	ttl 10800
96	);
97
98	# Arguably defined wholly in the db, but little reason to change without supporting code changes
99	our @permtypes = qw (
100	group_edit group_create group_delete
101	user_edit user_create user_delete
102	domain_edit domain_create domain_delete
103	record_edit record_create record_delete
104	self_edit admin
105	);
106	our $permlist = join(',',@permtypes);
107
108	# DNS record type map and reverse map.
109	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
110	our %typemap;
111	our %reverse_typemap;
112
113	our %permissions;
114
115	# Prepopulate a basic config. Note some of these will cause errors if left unset.
116	# note: add appropriate stanzas in loadConfig to parse these
117	our %config = (
118	# Database connection info
119	dbname => 'dnsdb',
120	dbuser => 'dnsdb',
121	dbpass => 'secret',
122	dbhost => '',
123
124	# Email notice settings
125	mailhost => 'smtp.example.com',
126	mailnotify => 'dnsdb@example.com', # to
127	mailsender => 'dnsdb@example.com', # from
128	mailname => 'DNS Administration',
129	orgname => 'Example Corp',
130	domain => 'example.com',
131
132	# Template directory
133	templatedir => 'templates/',
134	# fmeh. this is a real web path, not a logical internal one. hm..
135	# cssdir => 'templates/',
136	sessiondir => 'session/',
137
138	# Session params
139	timeout => '3600', # 1 hour default
140
141	# Other miscellanea
142	log_failures => 1, # log all evarthing by default
143	perpage => 15,
144	);
145
146	## (Semi)private variables
147	# Hash of functions for validating record types. Filled in initGlobals() since
148	# it relies on visibility flags from the rectypes table in the DB
149	my %validators;
150
151
152	##
153	## utility functions
154	# _rectable()
155	# Takes default+rdns flags, returns appropriate table name
156	sub _rectable {
157	my $def = shift;
158	my $rev = shift;
159
160	return 'records' if $def ne 'y';
161	return 'default_records' if $rev ne 'y';
162	return 'default_rev_records';
163	} # end _rectable()
164
165	# _recparent()
166	# Takes default+rdns flags, returns appropriate parent-id column name
167	sub _recparent {
168	my $def = shift;
169	my $rev = shift;
170
171	return 'group_id' if $def eq 'y';
172	return 'rdns_id' if $rev eq 'y';
173	return 'domain_id';
174	} # end _recparent()
175
176	# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
177	# Takes a database handle, default and reverse flags, IP (fragment) to check, parent zone ID,
178	# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
179	# database insertion)
180	sub _ipparent {
181	my $dbh = shift;
182	my $defrec = shift;
183	my $revrec = shift;
184	my $val = shift;
185	my $id = shift;
186	my $addr = shift;
187
188	return if $revrec ne 'y'; # this sub not useful in forward zones
189
190	$$addr = NetAddr::IP->new($$val); #necessary?
191
192	# subsub to split, reverse, and overlay an IP fragment on a netblock
193	sub __rev_overlay {
194	my $splitme = shift; # ':' or '.', m'lud?
195	my $parnet = shift;
196	my $val = shift;
197	my $addr = shift;
198
199	my $joinme = $splitme;
200	$splitme = '\.' if $splitme eq '.';
201	my @working = reverse(split($splitme, $parnet->addr));
202	my @parts = reverse(split($splitme, $$val));
203	for (my $i = 0; $i <= $#parts; $i++) {
204	$working[$i] = $parts[$i];
205	}
206	my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return 0;
207	return 0 unless $checkme->within($parnet);
208	$$addr = $checkme; # force "correct" IP to be recorded.
209	return 1;
210	}
211
212	my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
213	my $parnet = NetAddr::IP->new($parstr);
214
215	# Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
216	return 0 if $parnet->addr =~ /\./ && $$val =~ /:/;
217	return 0 if $parnet->addr =~ /:/ && $$val =~ /\./;
218
219	if ($$addr && $$val =~ /^[\da-fA-F][\da-fA-F:]+[\da-fA-F]$/) {
220	# the only case where NetAddr::IP's acceptance of legitimate IPs is "correct" is for a proper IPv6 address.
221	# the rest we have to restructure before fiddling. sigh
222	return 1 if $$addr->within($parnet);
223	} else {
224	# We don't have a complete IP in $$val (yet)
225	if ($parnet->addr =~ /:/) {
226	$$val =~ s/^:+//; # gotta strip'em all...
227	return __rev_overlay(':', $parnet, $val, $addr);
228	}
229	if ($parnet->addr =~ /\./) {
230	$$val =~ s/^\.+//;
231	return __rev_overlay('.', $parnet, $val, $addr);
232	}
233	# should be impossible to get here...
234	}
235	# ... and here.
236	# can't do nuttin' in forward zones
237	} # end _ipparent()
238
239	# A little different than _ipparent above; this tries to find the parent zone of a hostname
240	sub _hostparent {
241	my $dbh = shift;
242	my $hname = shift;
243
244	my @hostbits = split /\./, $hname;
245	my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE domain = ? GROUP BY domain_id");
246	foreach (@hostbits) {
247	$sth->execute($hname);
248	my ($found, $parid) = $sth->fetchrow_array;
249	if ($found) {
250	return $parid;
251	}
252	$hname =~ s/^$_\.//;
253	}
254	} # end _hostparent()
255
256	##
257	## Record validation subs.
258	##
259
260	# A record
261	sub _validate_1 {
262	my $dbh = shift;
263
264	my %args = @_;
265
266	return ('FAIL', 'Reverse zones cannot contain A records') if $args{revrec} eq 'y';
267
268	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
269	# or the intended parent domain for live records.
270	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
271	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
272
273	# Check IP is well-formed, and that it's a v4 address
274	# Fail on "compact" IPv4 variants, because they are not consistent and predictable.
275	return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
276	unless ${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/;
277	return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv4 address")
278	unless $args{addr} && !$args{addr}->{isv6};
279	# coerce IP/value to normalized form for storage
280	${$args{val}} = $args{addr}->addr;
281
282	return ('OK','OK');
283	} # done A record
284
285	# NS record
286	sub _validate_2 {
287	my $dbh = shift;
288
289	my %args = @_;
290
291	# Coerce the hostname to "DOMAIN" for forward default records, "ZONE" for reverse default records,
292	# or the intended parent zone for live records.
293	##fixme: allow for delegating <subdomain>.DOMAIN?
294	if ($args{revrec} eq 'y') {
295	my $pname = ($args{defrec} eq 'y' ? 'ZONE' : revName($dbh,$args{id}));
296	${$args{host}} = $pname if ${$args{host}} ne $pname;
297	} else {
298	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
299	${$args{host}} = $pname if ${$args{host}} ne $pname;
300	}
301
302	# Let this lie for now. Needs more magic.
303	# # Check IP is well-formed, and that it's a v4 address
304	# return ('FAIL',"A record must be a valid IPv4 address")
305	# unless $addr && !$addr->{isv6};
306	# # coerce IP/value to normalized form for storage
307	# $$val = $addr->addr;
308
309	return ('OK','OK');
310	} # done NS record
311
312	# CNAME record
313	sub _validate_5 {
314	my $dbh = shift;
315
316	my %args = @_;
317
318	# Not really true, but these are only useful for delegating smaller-than-/24 IP blocks.
319	# This is fundamentally a messy operation and should really just be taken care of by the
320	# export process, not manual maintenance of the necessary records.
321	return ('FAIL', 'Reverse zones cannot contain CNAME records') if $args{revrec} eq 'y';
322
323	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
324	# or the intended parent domain for live records.
325	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
326	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
327
328	return ('OK','OK');
329	} # done CNAME record
330
331	# SOA record
332	sub _validate_6 {
333	# Smart monkeys won't stick their fingers in here; we have
334	# separate dedicated routines to deal with SOA records.
335	return ('OK','OK');
336	} # done SOA record
337
338	# PTR record
339	sub _validate_12 {
340	my $dbh = shift;
341
342	my %args = @_;
343
344	if ($args{revrec} eq 'y') {
345	if ($args{defrec} eq 'n') {
346	return ('FAIL', "IP or IP fragment ${$args{val}} is not within ".revName($dbh, $args{id}))
347	unless _ipparent($dbh, $args{defrec}, $args{revrec}, $args{val}, $args{id}, \$args{addr});
348	${$args{val}} = $args{addr}->addr;
349	} else {
350	if (${$args{val}} =~ /\./) {
351	# looks like a v4 or fragment
352	if (${$args{val}} =~ /^\d+\.\d+\.\d+\.\d+$/) {
353	# woo! a complete IP! validate it and normalize, or fail.
354	$args{addr} = NetAddr::IP->new(${$args{val}})
355	or return ('FAIL', "IP/value looks like IPv4 but isn't valid");
356	${$args{val}} = $args{addr}->addr;
357	} else {
358	${$args{val}} =~ s/^\.*/ZONE./ unless ${$args{val}} =~ /^ZONE/;
359	}
360	} elsif (${$args{val}} =~ /[a-f:]/) {
361	# looks like a v6 or fragment
362	${$args{val}} =~ s/^:*/ZONE::/ if !$args{addr} && ${$args{val}} !~ /^ZONE/;
363	if ($args{addr}) {
364	if ($args{addr}->addr =~ /^0/) {
365	${$args{val}} =~ s/^:*/ZONE::/ unless ${$args{val}} =~ /^ZONE/;
366	} else {
367	${$args{val}} = $args{addr}->addr;
368	}
369	}
370	} else {
371	# bare number (probably). These could be v4 or v6, so we'll
372	# expand on these on creation of a reverse zone.
373	${$args{val}} = "ZONE,${$args{val}}" unless ${$args{val}} =~ /^ZONE/;
374	}
375	${$args{host}} =~ s/\.*$/\.$config{domain}/ if ${$args{host}} !~ /(?:$config{domain}\|ADMINDOMAIN)$/;
376	}
377
378	# Multiple PTR records do NOT generally do what most people believe they do,
379	# and tend to fail in the most awkward way possible. Check and warn.
380	# We use $val instead of $addr->addr since we may be in a defrec, and may have eg "ZONE::42" or "ZONE.12"
381
382	my @checkvals = (${$args{val}});
383	if (${$args{val}} =~ /,/) {
384	# push . and :: variants into checkvals if val has ,
385	my $tmp;
386	($tmp = ${$args{val}}) =~ s/,/./;
387	push @checkvals, $tmp;
388	($tmp = ${$args{val}}) =~ s/,/::/;
389	push @checkvals, $tmp;
390	}
391	my $pcsth = $dbh->prepare("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec})." WHERE val = ?");
392	foreach my $checkme (@checkvals) {
393	my $ptrcount;
394	($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
395	" WHERE val = ?", undef, ($checkme));
396	return ('WARN', "PTR record for $checkme already exists; adding another will probably not do what you want")
397	if $ptrcount;
398	}
399	} else {
400	# Not absolutely true but only useful if you hack things up for sub-/24 v4 reverse delegations
401	# Simpler to just create the reverse zone and grant access for the customer to edit it, and create direct
402	# PTR records on export
403	return ('FAIL',"Forward zones cannot contain PTR records");
404	}
405
406	return ('OK','OK');
407	} # done PTR record
408
409	# MX record
410	sub _validate_15 {
411	my $dbh = shift;
412
413	my %args = @_;
414
415	# Not absolutely true but WTF use is an MX record for a reverse zone?
416	return ('FAIL', 'Reverse zones cannot contain MX records') if $args{revrec} eq 'y';
417
418	return ('FAIL', "Distance is required for MX records") unless defined(${$args{dist}});
419	${$args{dist}} =~ s/\s*//g;
420	return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
421
422	${$args{fields}} = "distance,";
423	push @{$args{vallist}}, ${$args{dist}};
424
425	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
426	# or the intended parent domain for live records.
427	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
428	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
429
430	return ('OK','OK');
431	} # done MX record
432
433	# TXT record
434	sub _validate_16 {
435	# Could arguably put a WARN return here on very long (>512) records
436	return ('OK','OK');
437	} # done TXT record
438
439	# RP record
440	sub _validate_17 {
441	# Probably have to validate these some day
442	return ('OK','OK');
443	} # done RP record
444
445	# AAAA record
446	sub _validate_28 {
447	my $dbh = shift;
448
449	my %args = @_;
450
451	return ('FAIL', 'Reverse zones cannot contain AAAA records') if $args{revrec} eq 'y';
452
453	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
454	# or the intended parent domain for live records.
455	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
456	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
457
458	# Check IP is well-formed, and that it's a v6 address
459	return ('FAIL',"$typemap{${$args{rectype}}} record must be a valid IPv6 address")
460	unless $args{addr} && $args{addr}->{isv6};
461	# coerce IP/value to normalized form for storage
462	${$args{val}} = $args{addr}->addr;
463
464	return ('OK','OK');
465	} # done AAAA record
466
467	# SRV record
468	sub _validate_33 {
469	my $dbh = shift;
470
471	my %args = @_;
472
473	# Not absolutely true but WTF use is an SRV record for a reverse zone?
474	return ('FAIL', 'Reverse zones cannot contain SRV records') if $args{revrec} eq 'y';
475
476	return ('FAIL', "Distance is required for SRV records") unless defined(${$args{dist}});
477	${$args{dist}} =~ s/\s*//g;
478	return ('FAIL',"Distance is required, and must be numeric") unless ${$args{dist}} =~ /^\d+$/;
479
480	return ('FAIL',"SRV records must begin with _service._protocol [${$args{host}}]")
481	unless ${$args{host}} =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
482	return ('FAIL',"Port and weight are required for SRV records")
483	unless defined(${$args{weight}}) && defined(${$args{port}});
484	${$args{weight}} =~ s/\s*//g;
485	${$args{port}} =~ s/\s*//g;
486
487	return ('FAIL',"Port and weight are required, and must be numeric")
488	unless ${$args{weight}} =~ /^\d+$/ && ${$args{port}} =~ /^\d+$/;
489
490	${$args{fields}} = "distance,weight,port,";
491	push @{$args{vallist}}, (${$args{dist}}, ${$args{weight}}, ${$args{port}});
492
493	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
494	# or the intended parent domain for live records.
495	my $pname = ($args{defrec} eq 'y' ? 'DOMAIN' : domainName($dbh,$args{id}));
496	${$args{host}} =~ s/\.*$/\.$pname/ if ${$args{host}} !~ /$pname$/;
497
498	return ('OK','OK');
499	} # done SRV record
500
501	# Now the custom types
502
503	# A+PTR record. With a very little bit of magic we can also use this sub to validate AAAA+PTR. Whee!
504	sub _validate_65280 {
505	my $dbh = shift;
506
507	my %args = @_;
508
509	my $code = 'OK';
510	my $msg = 'OK';
511
512	if ($args{defrec} eq 'n') {
513	# live record; revrec determines whether we validate the PTR or A component first.
514
515	if ($args{revrec} eq 'y') {
516	($code,$msg) = _validate_12($dbh, %args);
517	return ($code,$msg) if $code eq 'FAIL';
518
519	# Check if the reqested domain exists. If not, coerce the type down to PTR and warn.
520	if (!(${$args{domid}} = _hostparent($dbh, ${$args{host}}))) {
521	my $addmsg = "Record added as PTR instead of $typemap{${$args{rectype}}}; domain not found for ${$args{host}}";
522	$msg .= "\n$addmsg" if $code eq 'WARN';
523	$msg = $addmsg if $code eq 'OK';
524	${$args{rectype}} = $reverse_typemap{PTR};
525	return ('WARN', $msg);
526	}
527
528	# Add domain ID to field list and values
529	${$args{fields}} .= "domain_id,";
530	push @{$args{vallist}}, ${$args{domid}};
531
532	} else {
533	($code,$msg) = _validate_1($dbh, %args) if ${$args{rectype}} == 65280;
534	($code,$msg) = _validate_28($dbh, %args) if ${$args{rectype}} == 65281;
535	return ($code,$msg) if $code eq 'FAIL';
536
537	# Check if the requested reverse zone exists - note, an IP fragment won't
538	# work here since we don't know which parent to put it in.
539	# ${$args{val}} has been validated as a valid IP by now, in one of the above calls.
540	my ($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
541	" ORDER BY masklen(revnet) DESC", undef, (${$args{val}}));
542	if (!$revid) {
543	$msg = "Record added as ".(${$args{rectype}} == 65280 ? 'A' : 'AAAA').
544	" instead of $typemap{${$args{rectype}}}; reverse zone not found for ${$args{val}}";
545	${$args{rectype}} = (${$args{rectype}} == 65280 ? $reverse_typemap{A} : $reverse_typemap{AAAA});
546	return ('WARN', $msg);
547	}
548
549	# Check for duplicate PTRs. Note we don't have to play games with $code and $msg, because
550	# by definition there can't be duplicate PTRs if the reverse zone isn't managed here.
551	my ($ptrcount) = $dbh->selectrow_array("SELECT count(*) FROM "._rectable($args{defrec},$args{revrec}).
552	" WHERE val = ?", undef, ${$args{val}});
553	if ($ptrcount) {
554	$msg = "PTR record for ${$args{val}} already exists; adding another will probably not do what you want";
555	$code = 'WARN';
556	}
557
558	${$args{fields}} .= "rdns_id,";
559	push @{$args{vallist}}, $revid;
560	}
561
562	} else { # defrec eq 'y'
563	if ($args{revrec} eq 'y') {
564	($code,$msg) = _validate_12($dbh, %args);
565	return ($code,$msg) if $code eq 'FAIL';
566	if (${$args{rectype}} == 65280) {
567	return ('FAIL',"A+PTR record must be a valid IPv4 address or fragment")
568	if ${$args{val}} =~ /:/;
569	${$args{val}} =~ s/^ZONE,/ZONE./; # Clean up after uncertain IP-fragment-type from _validate_12
570	} elsif (${$args{rectype}} == 65281) {
571	return ('FAIL',"AAAA+PTR record must be a valid IPv6 address or fragment")
572	if ${$args{val}} =~ /\./;
573	${$args{val}} =~ s/^ZONE,/ZONE::/; # Clean up after uncertain IP-fragment-type from _validate_12
574	}
575	} else {
576	# This is easy. I also can't see a real use-case for A/AAAA+PTR in all forward
577	# domains, since you wouldn't be able to substitute both domain and reverse zone
578	# sanely, and you'd end up with guaranteed over-replicated PTR records that would
579	# confuse the hell out of pretty much anything that uses them.
580	##fixme: make this a config flag?
581	return ('FAIL', "$typemap{${$args{rectype}}} records not allowed in default domains");
582	}
583	}
584
585	return ($code, $msg);
586	} # done A+PTR record
587
588	# AAAA+PTR record
589	# A+PTR above has been magicked to handle AAAA+PTR as well.
590	sub _validate_65281 {
591	return _validate_65280(@_);
592	} # done AAAA+PTR record
593
594	# PTR template record
595	sub _validate_65282 {
596	return ('OK','OK');
597	} # done PTR template record
598
599	# A+PTR template record
600	sub _validate_65283 {
601	return ('OK','OK');
602	} # done AAAA+PTR template record
603
604	# AAAA+PTR template record
605	sub _validate_65284 {
606	return ('OK','OK');
607	} # done AAAA+PTR template record
608
609
610
611	##
612	## Initialization and cleanup subs
613	##
614
615
616	## DNSDB::loadConfig()
617	# Load the minimum required initial state (DB connect info) from a config file
618	# Load misc other bits while we're at it.
619	# Takes an optional basename and config path to look for
620	# Populates the %config and %def hashes
621	sub loadConfig {
622	my $basename = shift \|\| ''; # this will work OK
623	##fixme $basename isn't doing what I think I thought I was trying to do.
624
625	my $deferr = ''; # place to put error from default config file in case we can't find either one
626
627	my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
628	$configroot = '' if $basename =~ m\|^/\|;
629	$basename .= ".conf" if $basename !~ /\.conf$/;
630	my $defconfig = "$configroot/dnsdb.conf";
631	my $siteconfig = "$configroot/$basename";
632
633	# System defaults
634	__cfgload("$defconfig") or $deferr = $errstr;
635
636	# Per-site-ish settings.
637	if ($basename ne '.conf') {
638	unless (__cfgload("$siteconfig")) {
639	$errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
640	"Error opening site config file $siteconfig";
641	return;
642	}
643	}
644
645	# Munge log_failures.
646	if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
647	# true/false, on/off, yes/no all valid.
648	if ($config{log_failures} =~ /^(?:true\|false\|on\|off\|yes\|no)$/) {
649	if ($config{log_failures} =~ /(?:true\|on\|yes)/) {
650	$config{log_failures} = 1;
651	} else {
652	$config{log_failures} = 0;
653	}
654	} else {
655	$errstr = "Bad log_failures setting $config{log_failures}";
656	$config{log_failures} = 1;
657	# Bad setting shouldn't be fatal.
658	# return 2;
659	}
660	}
661
662	# All good, clear the error and go home.
663	$errstr = '';
664	return 1;
665	} # end loadConfig()
666
667
668	## DNSDB::__cfgload()
669	# Private sub to parse a config file and load it into %config
670	# Takes a file handle on an open config file
671	sub __cfgload {
672	$errstr = '';
673	my $cfgfile = shift;
674
675	if (open CFG, "<$cfgfile") {
676	while (<CFG>) {
677	chomp;
678	s/^\s*//;
679	next if /^#/;
680	next if /^$/;
681	# hmm. more complex bits in this file might require [heading] headers, maybe?
682	# $mode = $1 if /^\[(a-z)+]/;
683	# DB connect info
684	$config{dbname} = $1 if /^dbname\s=\s([a-z0-9_.-]+)/i;
685	$config{dbuser} = $1 if /^dbuser\s=\s([a-z0-9_.-]+)/i;
686	$config{dbpass} = $1 if /^dbpass\s=\s([a-z0-9_.-]+)/i;
687	$config{dbhost} = $1 if /^dbhost\s=\s([a-z0-9_.-]+)/i;
688	# SOA defaults
689	$def{contact} = $1 if /^contact\s=\s([a-z0-9_.-]+)/i;
690	$def{prins} = $1 if /^prins\s=\s([a-z0-9_.-]+)/i;
691	$def{soattl} = $1 if /^soattl\s=\s(\d+)/i;
692	$def{refresh} = $1 if /^refresh\s=\s(\d+)/i;
693	$def{retry} = $1 if /^retry\s=\s(\d+)/i;
694	$def{expire} = $1 if /^expire\s=\s(\d+)/i;
695	$def{minttl} = $1 if /^minttl\s=\s(\d+)/i;
696	$def{ttl} = $1 if /^ttl\s=\s(\d+)/i;
697	# Mail settings
698	$config{mailhost} = $1 if /^mailhost\s=\s([a-z0-9_.-]+)/i;
699	$config{mailnotify} = $1 if /^mailnotify\s=\s([a-z0-9_.\@-]+)/i;
700	$config{mailsender} = $1 if /^mailsender\s=\s([a-z0-9_.\@-]+)/i;
701	$config{mailname} = $1 if /^mailname\s=\s([a-z0-9\s_.-]+)/i;
702	$config{orgname} = $1 if /^orgname\s=\s([a-z0-9\s_.,'-]+)/i;
703	$config{domain} = $1 if /^domain\s=\s([a-z0-9_.-]+)/i;
704	# session - note this is fed directly to CGI::Session
705	$config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s=\s(\d+[smhdwMy]?)/;
706	$config{sessiondir} = $1 if m{^sessiondir\s=\s([a-z0-9/_.-]+)}i;
707	# misc
708	$config{log_failures} = $1 if /^log_failures\s=\s([a-z01]+)/i;
709	$config{perpage} = $1 if /^perpage\s=\s(\d+)/i;
710	}
711	close CFG;
712	} else {
713	$errstr = $!;
714	return;
715	}
716	return 1;
717	} # end __cfgload()
718
719
720	## DNSDB::connectDB()
721	# Creates connection to DNS database.
722	# Requires the database name, username, and password.
723	# Returns a handle to the db.
724	# Set up for a PostgreSQL db; could be any transactional DBMS with the
725	# right changes.
726	sub connectDB {
727	$errstr = '';
728	my $dbname = shift;
729	my $user = shift;
730	my $pass = shift;
731	my $dbh;
732	my $DSN = "DBI:Pg:dbname=$dbname";
733
734	my $host = shift;
735	$DSN .= ";host=$host" if $host;
736
737	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
738	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
739	$dbh = DBI->connect($DSN, $user, $pass, {
740	AutoCommit => 1,
741	PrintError => 0
742	})
743	or return (undef, $DBI::errstr) if(!$dbh);
744
745	##fixme: initialize the DB if we can't find the table (since, by definition, there's
746	# nothing there if we can't select from it...)
747	my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
748	my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
749	return (undef,$DBI::errstr) if $dbh->err;
750
751	#if ($tblcount == 0) {
752	# # create tables one at a time, checking for each.
753	# return (undef, "check table misc missing");
754	#}
755
756
757	# Return here if we can't select.
758	# This should retrieve the dbversion key.
759	my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
760	$sth->execute();
761	return (undef,$DBI::errstr) if ($sth->err);
762
763	##fixme: do stuff to the DB on version mismatch
764	# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
765	# DB should be downward-compatible; column defaults should give sane (if possibly
766	# useless-and-needs-help) values in columns an older software stack doesn't know about.
767
768	# See if the select returned anything (or null data). This should
769	# succeed if the select executed, but...
770	$sth->fetchrow();
771	return (undef,$DBI::errstr) if ($sth->err);
772
773	$sth->finish;
774
775	# If we get here, we should be OK.
776	return ($dbh,"DB connection OK");
777	} # end connectDB
778
779
780	## DNSDB::finish()
781	# Cleans up after database handles and so on.
782	# Requires a database handle
783	sub finish {
784	my $dbh = $_[0];
785	$dbh->disconnect;
786	} # end finish
787
788
789	## DNSDB::initGlobals()
790	# Initialize global variables
791	# NB: this does NOT include web-specific session variables!
792	# Requires a database handle
793	sub initGlobals {
794	my $dbh = shift;
795
796	# load record types from database
797	my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
798	$sth->execute;
799	while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
800	$typemap{$recval} = $recname;
801	$reverse_typemap{$recname} = $recval;
802	# now we fill the record validation function hash
803	if ($stdflag < 5) {
804	my $fn = "_validate_$recval";
805	$validators{$recval} = \&$fn;
806	} else {
807	my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
808	$validators{$recval} = eval $fn;
809	}
810	}
811	} # end initGlobals
812
813
814	## DNSDB::initPermissions()
815	# Set up permissions global
816	# Takes database handle and UID
817	sub initPermissions {
818	my $dbh = shift;
819	my $uid = shift;
820
821	# %permissions = $(getPermissions($dbh,'user',$uid));
822	getPermissions($dbh, 'user', $uid, \%permissions);
823
824	} # end initPermissions()
825
826
827	## DNSDB::getPermissions()
828	# Get permissions from DB
829	# Requires DB handle, group or user flag, ID, and hashref.
830	sub getPermissions {
831	my $dbh = shift;
832	my $type = shift;
833	my $id = shift;
834	my $hash = shift;
835
836	my $sql = qq(
837	SELECT
838	p.admin,p.self_edit,
839	p.group_create,p.group_edit,p.group_delete,
840	p.user_create,p.user_edit,p.user_delete,
841	p.domain_create,p.domain_edit,p.domain_delete,
842	p.record_create,p.record_edit,p.record_delete
843	FROM permissions p
844	);
845	if ($type eq 'group') {
846	$sql .= qq(
847	JOIN groups g ON g.permission_id=p.permission_id
848	WHERE g.group_id=?
849	);
850	} else {
851	$sql .= qq(
852	JOIN users u ON u.permission_id=p.permission_id
853	WHERE u.user_id=?
854	);
855	}
856
857	my $sth = $dbh->prepare($sql);
858
859	$sth->execute($id) or die "argh: ".$sth->errstr;
860
861	# my $permref = $sth->fetchrow_hashref;
862	# return $permref;
863	# $hash = $permref;
864	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
865	($hash->{admin},$hash->{self_edit},
866	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
867	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
868	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
869	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
870	= $sth->fetchrow_array;
871
872	} # end getPermissions()
873
874
875	## DNSDB::changePermissions()
876	# Update an ACL entry
877	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
878	sub changePermissions {
879	my $dbh = shift;
880	my $type = shift;
881	my $id = shift;
882	my $newperms = shift;
883	my $inherit = shift \|\| 0;
884
885	my $failmsg = '';
886
887	# see if we're switching from inherited to custom. for bonus points,
888	# snag the permid and parent permid anyway, since we'll need the permid
889	# to set/alter custom perms, and both if we're switching from custom to
890	# inherited.
891	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
892	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
893	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
894	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
895	$sth->execute($id);
896
897	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
898
899	# hack phtoui
900	# group id 1 is "special" in that it's it's own parent (err... possibly.)
901	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
902	$wasinherited = 0 if ($type eq 'group' && $id == 1);
903
904	local $dbh->{AutoCommit} = 0;
905	local $dbh->{RaiseError} = 1;
906
907	# Wrap all the SQL in a transaction
908	eval {
909	if ($inherit) {
910
911	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
912	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
913	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
914
915	} else {
916
917	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
918	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
919	# ... if'n'when we have groups with fully inherited permissions.
920	# SQL is coo
921	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
922	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
923	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
924	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
925	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
926	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
927	}
928
929	# and now set the permissions we were passed
930	foreach (@permtypes) {
931	if (defined ($newperms->{$_})) {
932	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
933	}
934	}
935
936	} # (inherited->)? custom
937
938	$dbh->commit;
939	}; # end eval
940	if ($@) {
941	my $msg = $@;
942	eval { $dbh->rollback; };
943	return ('FAIL',"$failmsg: $msg ($permid)");
944	} else {
945	return ('OK',$permid);
946	}
947
948	} # end changePermissions()
949
950
951	## DNSDB::comparePermissions()
952	# Compare two permission hashes
953	# Returns '>', '<', '=', '!'
954	sub comparePermissions {
955	my $p1 = shift;
956	my $p2 = shift;
957
958	my $retval = '='; # assume equality until proven otherwise
959
960	no warnings "uninitialized";
961
962	foreach (@permtypes) {
963	next if $p1->{$_} == $p2->{$_}; # equal is good
964	if ($p1->{$_} && !$p2->{$_}) {
965	if ($retval eq '<') { # if we've already found an unequal pair where
966	$retval = '!'; # $p2 has more access, and we now find a pair
967	last; # where $p1 has more access, the overall access
968	} # is neither greater or lesser, it's unequal.
969	$retval = '>';
970	}
971	if (!$p1->{$_} && $p2->{$_}) {
972	if ($retval eq '>') { # if we've already found an unequal pair where
973	$retval = '!'; # $p1 has more access, and we now find a pair
974	last; # where $p2 has more access, the overall access
975	} # is neither greater or lesser, it's unequal.
976	$retval = '<';
977	}
978	}
979	return $retval;
980	} # end comparePermissions()
981
982
983	## DNSDB::changeGroup()
984	# Change group ID of an entity
985	# Takes a database handle, entity type, entity ID, and new group ID
986	sub changeGroup {
987	my $dbh = shift;
988	my $type = shift;
989	my $id = shift;
990	my $newgrp = shift;
991
992	##fixme: fail on not enough args
993	#return ('FAIL', "Missing
994
995	if ($type eq 'domain') {
996	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
997	or return ('FAIL','Group change failed: '.$dbh->errstr);
998	} elsif ($type eq 'user') {
999	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
1000	or return ('FAIL','Group change failed: '.$dbh->errstr);
1001	} elsif ($type eq 'group') {
1002	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
1003	or return ('FAIL','Group change failed: '.$dbh->errstr);
1004	}
1005	return ('OK','OK');
1006	} # end changeGroup()
1007
1008
1009	## DNSDB::_log()
1010	# Log an action
1011	# Internal sub
1012	# Takes a database handle and log entry hash containing at least:
1013	# user_id, group_id, log entry
1014	# and optionally one or more of:
1015	# username/email, user full name, domain_id, rdns_id
1016	##fixme: convert to trailing hash for user info
1017	# User info must contain a (user ID OR username)+fullname
1018	sub _log {
1019	my $dbh = shift;
1020
1021	my %args = @_;
1022
1023	$args{rdns_id} = 0 if !$args{rdns_id};
1024	$args{domain_id} = 0 if !$args{domain_id};
1025
1026	##fixme: need better way(s?) to snag userinfo for log entries. don't want to have
1027	# to pass around yet another constant (already passing $dbh, shouldn't need to)
1028	my $fullname;
1029	if (!$args{user_id}) {
1030	($args{user_id}, $fullname) = $dbh->selectrow_array("SELECT user_id, firstname \|\| ' ' \|\| lastname FROM users".
1031	" WHERE username=?", undef, ($args{username}));
1032	}
1033	if (!$args{username}) {
1034	($args{username}, $fullname) = $dbh->selectrow_array("SELECT username, firstname \|\| ' ' \|\| lastname FROM users".
1035	" WHERE user_id=?", undef, ($args{user_id}));
1036	}
1037	if (!$args{fullname}) {
1038	($fullname) = $dbh->selectrow_array("SELECT firstname \|\| ' ' \|\| lastname FROM users".
1039	" WHERE user_id=?", undef, ($args{user_id}));
1040	}
1041
1042	$args{name} = $fullname if !$args{name};
1043
1044	##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
1045	$dbh->do("INSERT INTO log (domain_id,rdns_id,user_id,group_id,email,name,entry) VALUES (?,?,?,?,?,?,?)",
1046	undef,
1047	($args{domain_id},$args{rdns_id},$args{user_id},$args{group_id},$args{username},$args{name},$args{entry}));
1048
1049	} # end _log
1050
1051
1052	##
1053	## Processing subs
1054	##
1055
1056	## DNSDB::addDomain()
1057	# Add a domain
1058	# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
1059	# and user info hash (for logging).
1060	# Returns a status code and message
1061	sub addDomain {
1062	$errstr = '';
1063	my $dbh = shift;
1064	return ('FAIL',"Need database handle") if !$dbh;
1065	my $domain = shift;
1066	return ('FAIL',"Domain must not be blank") if !$domain;
1067	my $group = shift;
1068	return ('FAIL',"Need group") if !defined($group);
1069	my $state = shift;
1070	return ('FAIL',"Need domain status") if !defined($state);
1071
1072	my %userinfo = @_; # remaining bits.
1073	# user ID, username, user full name
1074
1075	$state = 1 if $state =~ /^active$/;
1076	$state = 1 if $state =~ /^on$/;
1077	$state = 0 if $state =~ /^inactive$/;
1078	$state = 0 if $state =~ /^off$/;
1079
1080	return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
1081
1082	return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
1083
1084	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
1085	my $dom_id;
1086
1087	# quick check to start to see if we've already got one
1088	$sth->execute($domain);
1089	($dom_id) = $sth->fetchrow_array;
1090
1091	return ('FAIL', "Domain already exists") if $dom_id;
1092
1093	# Allow transactions, and raise an exception on errors so we can catch it later.
1094	# Use local to make sure these get "reset" properly on exiting this block
1095	local $dbh->{AutoCommit} = 0;
1096	local $dbh->{RaiseError} = 1;
1097
1098	# Wrap all the SQL in a transaction
1099	eval {
1100	# insert the domain...
1101	$dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
1102
1103	# get the ID...
1104	($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
1105
1106	_log($dbh, (domain_id => $dom_id, user_id => $userinfo{id}, group_id => $group, username => $userinfo{username},
1107	entry => "Added ".($state ? 'active' : 'inactive')." domain $domain"));
1108
1109	# ... and now we construct the standard records from the default set. NB: group should be variable.
1110	my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1111	my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
1112	" VALUES ($dom_id,?,?,?,?,?,?,?)");
1113	$sth->execute($group);
1114	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
1115	$host =~ s/DOMAIN/$domain/g;
1116	$val =~ s/DOMAIN/$domain/g;
1117	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
1118	if ($typemap{$type} eq 'SOA') {
1119	my @tmp1 = split /:/, $host;
1120	my @tmp2 = split /:/, $val;
1121	_log($dbh, (domain_id => $dom_id, user_id => $userinfo{id}, group_id => $group,
1122	username => $userinfo{username}, entry =>
1123	"[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1124	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1125	} else {
1126	my $logentry = "[new $domain] Added record '$host $typemap{$type}";
1127	$logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1128	$logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1129	_log($dbh, (domain_id => $dom_id, user_id => $userinfo{id}, group_id => $group,
1130	username => $userinfo{username}, entry =>
1131	$logentry." $val', TTL $ttl"));
1132	}
1133	}
1134
1135	# once we get here, we should have suceeded.
1136	$dbh->commit;
1137	}; # end eval
1138
1139	if ($@) {
1140	my $msg = $@;
1141	eval { $dbh->rollback; };
1142	return ('FAIL',$msg);
1143	} else {
1144	return ('OK',$dom_id);
1145	}
1146	} # end addDomain
1147
1148
1149	## DNSDB::delDomain()
1150	# Delete a domain.
1151	# for now, just delete the records, then the domain.
1152	# later we may want to archive it in some way instead (status code 2, for example?)
1153	sub delDomain {
1154	my $dbh = shift;
1155	my $domid = shift;
1156
1157	# Allow transactions, and raise an exception on errors so we can catch it later.
1158	# Use local to make sure these get "reset" properly on exiting this block
1159	local $dbh->{AutoCommit} = 0;
1160	local $dbh->{RaiseError} = 1;
1161
1162	my $failmsg = '';
1163
1164	# Wrap all the SQL in a transaction
1165	eval {
1166	my $sth = $dbh->prepare("delete from records where domain_id=?");
1167	$failmsg = "Failure removing domain records";
1168	$sth->execute($domid);
1169	$sth = $dbh->prepare("delete from domains where domain_id=?");
1170	$failmsg = "Failure removing domain";
1171	$sth->execute($domid);
1172
1173	# once we get here, we should have suceeded.
1174	$dbh->commit;
1175	}; # end eval
1176
1177	if ($@) {
1178	my $msg = $@;
1179	eval { $dbh->rollback; };
1180	return ('FAIL',"$failmsg: $msg");
1181	} else {
1182	return ('OK','OK');
1183	}
1184
1185	} # end delDomain()
1186
1187
1188	## DNSDB::domainName()
1189	# Return the domain name based on a domain ID
1190	# Takes a database handle and the domain ID
1191	# Returns the domain name or undef on failure
1192	sub domainName {
1193	$errstr = '';
1194	my $dbh = shift;
1195	my $domid = shift;
1196	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
1197	$errstr = $DBI::errstr if !$domname;
1198	return $domname if $domname;
1199	} # end domainName()
1200
1201
1202	## DNSDB::revName()
1203	# Return the reverse zone name based on an rDNS ID
1204	# Takes a database handle and the rDNS ID
1205	# Returns the reverse zone name or undef on failure
1206	sub revName {
1207	$errstr = '';
1208	my $dbh = shift;
1209	my $revid = shift;
1210	my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
1211	$errstr = $DBI::errstr if !$revname;
1212	return $revname if $revname;
1213	} # end revName()
1214
1215
1216	## DNSDB::domainID()
1217	# Takes a database handle and domain name
1218	# Returns the domain ID number
1219	sub domainID {
1220	$errstr = '';
1221	my $dbh = shift;
1222	my $domain = shift;
1223	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
1224	$errstr = $DBI::errstr if !$domid;
1225	return $domid if $domid;
1226	} # end domainID()
1227
1228
1229	## DNSDB::addRDNS
1230	# Adds a reverse DNS zone
1231	# Takes a database handle, CIDR block, numeric group, boolean(ish) state (active/inactive),
1232	# and user info hash (for logging).
1233	# Returns a status code and message
1234	sub addRDNS {
1235	my $dbh = shift;
1236	my $zone = NetAddr::IP->new(shift);
1237	return ('FAIL',"Zone name must be a valid CIDR netblock") unless ($zone && $zone->addr !~ /^0/);
1238	my $revpatt = shift;
1239	my $group = shift;
1240	my $state = shift;
1241
1242	my %userinfo = @_; # remaining bits.
1243	# user ID, username, user full name
1244
1245	$state = 1 if $state =~ /^active$/;
1246	$state = 1 if $state =~ /^on$/;
1247	$state = 0 if $state =~ /^inactive$/;
1248	$state = 0 if $state =~ /^off$/;
1249
1250	return ('FAIL',"Invalid zone status") if $state !~ /^\d+$/;
1251
1252	# quick check to start to see if we've already got one
1253	my ($rdns_id) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revzone=?", undef, ("$zone"));
1254
1255	return ('FAIL', "Zone already exists") if $rdns_id;
1256
1257	# Allow transactions, and raise an exception on errors so we can catch it later.
1258	# Use local to make sure these get "reset" properly on exiting this block
1259	local $dbh->{AutoCommit} = 0;
1260	local $dbh->{RaiseError} = 1;
1261
1262	#$dbh->selectrow_array("SELECT currval('users_user_id_seq')");
1263	# Wrap all the SQL in a transaction
1264	eval {
1265	# insert the domain...
1266	$dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,?,?)", undef, ($zone, $group, $state));
1267
1268	# get the ID...
1269	($rdns_id) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
1270
1271	_log($dbh, (rdns_id => $rdns_id, user_id => $userinfo{id}, group_id => $group, username => $userinfo{name},
1272	entry => "Added ".($state ? 'active' : 'inactive')." reverse zone $zone"));
1273
1274	# ... and now we construct the standard records from the default set. NB: group should be variable.
1275	my $sth = $dbh->prepare("SELECT host,type,val,ttl FROM default_rev_records WHERE group_id=?");
1276	my $sth_in = $dbh->prepare("INSERT INTO records (rdns_id,host,type,val,ttl)".
1277	" VALUES ($rdns_id,?,?,?,?)");
1278	$sth->execute($group);
1279	while (my ($host,$type,$val,$ttl) = $sth->fetchrow_array()) {
1280	$host =~ s/ADMINDOMAIN/$config{domain}/g;
1281	##work
1282	# - replace ZONE in $val
1283	# - skip records not appropriate for the zone (skip A+PTR on v6 zones, and AAAA+PTR on v4 zones)
1284	# $val =~ s/DOMAIN/$domain/g;
1285	$sth_in->execute($host,$type,$val,$ttl);
1286	if ($typemap{$type} eq 'SOA') {
1287	my @tmp1 = split /:/, $host;
1288	my @tmp2 = split /:/, $val;
1289	_log($dbh, (rdns_id => $rdns_id, user_id => $userinfo{id}, group_id => $group,
1290	username => $userinfo{name}, entry =>
1291	"[new $zone] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
1292	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl"));
1293	} else {
1294	my $logentry = "[new $zone] Added record '$host $typemap{$type}";
1295	# $logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
1296	# $logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
1297	_log($dbh, (rdns_id => $rdns_id, user_id => $userinfo{id}, group_id => $group,
1298	username => $userinfo{name}, entry =>
1299	$logentry." $val', TTL $ttl"));
1300	}
1301	}
1302
1303	# once we get here, we should have suceeded.
1304	$dbh->commit;
1305	}; # end eval
1306
1307	if ($@) {
1308	my $msg = $@;
1309	eval { $dbh->rollback; };
1310	return ('FAIL',$msg);
1311	} else {
1312	return ('OK',$rdns_id);
1313	}
1314
1315	} # end addRDNS()
1316
1317
1318	## DNSDB::getZoneCount
1319	# Get count of zones in group or groups
1320	# Takes a database handle and hash containing:
1321	# - the "current" group
1322	# - an array of "acceptable" groups
1323	# - a flag for forward/reverse zones
1324	# - Optionally accept a "starts with" and/or "contains" filter argument
1325	# Returns an integer count of the resulting zone list.
1326	sub getZoneCount {
1327	my $dbh = shift;
1328
1329	my %args = @_;
1330
1331	my @filterargs;
1332	$args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]\|0-9)$/;
1333	push @filterargs, "^$args{startwith}" if $args{startwith};
1334	$args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
1335	push @filterargs, $args{filter} if $args{filter};
1336
1337	my $sql;
1338	# Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
1339	if ($args{revrec} eq 'n') {
1340	$sql = "SELECT count(*) FROM domains".
1341	" WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1342	($args{startwith} ? " AND domain ~* ?" : '').
1343	($args{filter} ? " AND domain ~* ?" : '');
1344	} else {
1345	$sql = "SELECT count(*) FROM revzones".
1346	" WHERE group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1347	($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
1348	($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
1349	}
1350	my ($count) = $dbh->selectrow_array($sql, undef, @filterargs);
1351	return $count;
1352	} # end getZoneCount()
1353
1354
1355	## DNSDB::getZoneList()
1356	# Get a list of zones in the specified group(s)
1357	# Takes the same arguments as getZoneCount() above
1358	# Returns a reference to an array of hashrefs suitable for feeding to HTML::Template
1359	sub getZoneList {
1360	my $dbh = shift;
1361
1362	my %args = @_;
1363
1364	my @zonelist;
1365
1366	$args{sortorder} = 'ASC' if !grep $args{sortorder}, ('ASC','DESC');
1367	$args{offset} = 0 if !$args{offset} \|\| $args{offset} !~ /^(?:all\|\d+)$/;
1368
1369	my @filterargs;
1370	$args{startwith} = undef if $args{startwith} && $args{startwith} !~ /^(?:[a-z]\|0-9)$/;
1371	push @filterargs, "^$args{startwith}" if $args{startwith};
1372	$args{filter} =~ s/\./\[\.\]/g if $args{filter}; # only match literal dots, usually in reverse zones
1373	push @filterargs, $args{filter} if $args{filter};
1374
1375	my $sql;
1376	# Not as compact, and fix-me-twice if the common bits get wrong, but much easier to read
1377	if ($args{revrec} eq 'n') {
1378	$args{sortby} = 'domain' if !grep $args{sortby}, ('revnet','group','status');
1379	$sql = "SELECT domain_id,domain,status,groups.group_name AS group FROM domains".
1380	" INNER JOIN groups ON domains.group_id=groups.group_id".
1381	" WHERE domains.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1382	($args{startwith} ? " AND domain ~* ?" : '').
1383	($args{filter} ? " AND domain ~* ?" : '');
1384	} else {
1385	##fixme: arguably startwith here is irrelevant. depends on the UI though.
1386	$args{sortby} = 'revnet' if !grep $args{sortby}, ('domain','group','status');
1387	$sql = "SELECT rdns_id,revnet,status,groups.group_name AS group FROM revzones".
1388	" INNER JOIN groups ON revzones.group_id=groups.group_id".
1389	" WHERE revzones.group_id IN ($args{curgroup}".($args{childlist} ? ",$args{childlist}" : '').")".
1390	($args{startwith} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '').
1391	($args{filter} ? " AND CAST(revnet AS VARCHAR) ~* ?" : '');
1392	}
1393	# A common tail.
1394	$sql .= " ORDER BY ".($args{sortby} eq 'group' ? 'groups.group_name' : $args{sortby})." $args{sortorder} ".
1395	($args{offset} eq 'all' ? '' : " LIMIT $config{perpage}".
1396	" OFFSET ".$args{offset}*$config{perpage});
1397	my $sth = $dbh->prepare($sql);
1398	$sth->execute(@filterargs);
1399	my $rownum = 0;
1400
1401	while (my @data = $sth->fetchrow_array) {
1402	my %row;
1403	$row{domainid} = $data[0];
1404	$row{domain} = $data[1];
1405	$row{status} = $data[2];
1406	$row{group} = $data[3];
1407	push @zonelist, \%row;
1408	}
1409
1410	return \@zonelist;
1411	} # end getZoneList()
1412
1413
1414	## DNSDB::addGroup()
1415	# Add a group
1416	# Takes a database handle, group name, parent group, hashref for permissions,
1417	# and optional template-vs-cloneme flag
1418	# Returns a status code and message
1419	sub addGroup {
1420	$errstr = '';
1421	my $dbh = shift;
1422	my $groupname = shift;
1423	my $pargroup = shift;
1424	my $permissions = shift;
1425
1426	# 0 indicates "custom", hardcoded.
1427	# Any other value clones that group's default records, if it exists.
1428	my $inherit = shift \|\| 0;
1429	##fixme: need a flag to indicate clone records or <?> ?
1430
1431	# Allow transactions, and raise an exception on errors so we can catch it later.
1432	# Use local to make sure these get "reset" properly on exiting this block
1433	local $dbh->{AutoCommit} = 0;
1434	local $dbh->{RaiseError} = 1;
1435
1436	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
1437	my $group_id;
1438
1439	# quick check to start to see if we've already got one
1440	$sth->execute($groupname);
1441	($group_id) = $sth->fetchrow_array;
1442
1443	return ('FAIL', "Group already exists") if $group_id;
1444
1445	# Wrap all the SQL in a transaction
1446	eval {
1447	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
1448	$sth->execute($pargroup,$groupname);
1449
1450	my ($groupid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group_name=?", undef, ($groupname));
1451
1452	# Permissions
1453	if ($inherit) {
1454	} else {
1455	my @permvals;
1456	foreach (@permtypes) {
1457	if (!defined ($permissions->{$_})) {
1458	push @permvals, 0;
1459	} else {
1460	push @permvals, $permissions->{$_};
1461	}
1462	}
1463
1464	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
1465	$sth->execute($groupid,@permvals);
1466
1467	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
1468	$sth->execute($groupid);
1469	my ($permid) = $sth->fetchrow_array();
1470
1471	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
1472	} # done permission fiddling
1473
1474	# Default records
1475	my $sthf = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
1476	"VALUES ($groupid,?,?,?,?,?,?,?)");
1477	my $sthr = $dbh->prepare("INSERT INTO default_rev_records (group_id,host,type,val,ttl) ".
1478	"VALUES ($groupid,?,?,?,?)");
1479	if ($inherit) {
1480	# Duplicate records from parent. Actually relying on inherited records feels
1481	# very fragile, and it would be problematic to roll over at a later time.
1482	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1483	$sth2->execute($pargroup);
1484	while (my @clonedata = $sth2->fetchrow_array) {
1485	$sthf->execute(@clonedata);
1486	}
1487	# And now the reverse records
1488	$sth2 = $dbh->prepare("SELECT group_id,host,type,val,ttl FROM default_rev_records WHERE group_id=?");
1489	$sth2->execute($pargroup);
1490	while (my @clonedata = $sth2->fetchrow_array) {
1491	$sthr->execute(@clonedata);
1492	}
1493	} else {
1494	##fixme: Hardcoding is Bad, mmmmkaaaay?
1495	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
1496	# could load from a config file, but somewhere along the line we need hardcoded bits.
1497	$sthf->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
1498	$sthf->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
1499	$sthf->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
1500	$sthf->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
1501	$sthf->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
1502	$sthf->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
1503	# reasonable basic defaults for generic reverse zone. Same as initial SQL tabledef.
1504	$sthr->execute('hostmaster.ADMINDOMAIN:ns1.ADMINDOMAIN', 6, '10800:3600:604800:10800', 86400);
1505	$sthr->execute('unused-%r.ADMINDOMAIN', 65283, 'ZONE', 3600);
1506	}
1507
1508	# once we get here, we should have suceeded.
1509	$dbh->commit;
1510	}; # end eval
1511
1512	if ($@) {
1513	my $msg = $@;
1514	eval { $dbh->rollback; };
1515	return ('FAIL',$msg);
1516	} else {
1517	return ('OK','OK');
1518	}
1519
1520	} # end addGroup()
1521
1522
1523	## DNSDB::delGroup()
1524	# Delete a group.
1525	# Takes a group ID
1526	# Returns a status code and message
1527	sub delGroup {
1528	my $dbh = shift;
1529	my $groupid = shift;
1530
1531	# Allow transactions, and raise an exception on errors so we can catch it later.
1532	# Use local to make sure these get "reset" properly on exiting this block
1533	local $dbh->{AutoCommit} = 0;
1534	local $dbh->{RaiseError} = 1;
1535
1536	##fixme: locate "knowable" error conditions and deal with them before the eval
1537	# ... or inside, whatever.
1538	# -> domains still exist in group
1539	# -> ...
1540	my $failmsg = '';
1541
1542	# Wrap all the SQL in a transaction
1543	eval {
1544	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
1545	$sth->execute($groupid);
1546	my ($domcnt) = $sth->fetchrow_array;
1547	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
1548	die "$domcnt domains still in group\n" if $domcnt;
1549
1550	$sth = $dbh->prepare("delete from default_records where group_id=?");
1551	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
1552	$sth->execute($groupid);
1553	$sth = $dbh->prepare("delete from groups where group_id=?");
1554	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
1555	$sth->execute($groupid);
1556
1557	# once we get here, we should have suceeded.
1558	$dbh->commit;
1559	}; # end eval
1560
1561	if ($@) {
1562	my $msg = $@;
1563	eval { $dbh->rollback; };
1564	return ('FAIL',"$failmsg: $msg");
1565	} else {
1566	return ('OK','OK');
1567	}
1568	} # end delGroup()
1569
1570
1571	## DNSDB::getChildren()
1572	# Get a list of all groups whose parent^n is group <n>
1573	# Takes a database handle, group ID, reference to an array to put the group IDs in,
1574	# and an optional flag to return only immediate children or all children-of-children
1575	# default to returning all children
1576	# Calls itself
1577	sub getChildren {
1578	$errstr = '';
1579	my $dbh = shift;
1580	my $rootgroup = shift;
1581	my $groupdest = shift;
1582	my $immed = shift \|\| 'all';
1583
1584	# special break for default group; otherwise we get stuck.
1585	if ($rootgroup == 1) {
1586	# by definition, group 1 is the Root Of All Groups
1587	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
1588	($immed ne 'all' ? " AND parent_group_id=1" : ''));
1589	$sth->execute;
1590	while (my @this = $sth->fetchrow_array) {
1591	push @$groupdest, @this;
1592	}
1593	} else {
1594	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
1595	$sth->execute($rootgroup);
1596	return if $sth->rows == 0;
1597	my @grouplist;
1598	while (my ($group) = $sth->fetchrow_array) {
1599	push @$groupdest, $group;
1600	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
1601	}
1602	}
1603	} # end getChildren()
1604
1605
1606	## DNSDB::groupName()
1607	# Return the group name based on a group ID
1608	# Takes a database handle and the group ID
1609	# Returns the group name or undef on failure
1610	sub groupName {
1611	$errstr = '';
1612	my $dbh = shift;
1613	my $groupid = shift;
1614	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
1615	$sth->execute($groupid);
1616	my ($groupname) = $sth->fetchrow_array();
1617	$errstr = $DBI::errstr if !$groupname;
1618	return $groupname if $groupname;
1619	} # end groupName
1620
1621
1622	## DNSDB::groupID()
1623	# Return the group ID based on the group name
1624	# Takes a database handle and the group name
1625	# Returns the group ID or undef on failure
1626	sub groupID {
1627	$errstr = '';
1628	my $dbh = shift;
1629	my $group = shift;
1630	my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
1631	$errstr = $DBI::errstr if !$grpid;
1632	return $grpid if $grpid;
1633	} # end groupID()
1634
1635
1636	## DNSDB::addUser()
1637	# Add a user.
1638	# Takes a DB handle, username, group ID, password, state (active/inactive).
1639	# Optionally accepts:
1640	# user type (user/admin) - defaults to user
1641	# permissions string - defaults to inherit from group
1642	# three valid forms:
1643	# i - Inherit permissions
1644	# c:<user_id> - Clone permissions from <user_id>
1645	# C:<permission list> - Set these specific permissions
1646	# first name - defaults to username
1647	# last name - defaults to blank
1648	# phone - defaults to blank (could put other data within column def)
1649	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
1650	sub addUser {
1651	$errstr = '';
1652	my $dbh = shift;
1653	my $username = shift;
1654	my $group = shift;
1655	my $pass = shift;
1656	my $state = shift;
1657
1658	return ('FAIL', "Missing one or more required entries") if !defined($state);
1659	return ('FAIL', "Username must not be blank") if !$username;
1660
1661	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
1662
1663	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
1664
1665	my $fname = shift \|\| $username;
1666	my $lname = shift \|\| '';
1667	my $phone = shift \|\| ''; # not going format-check
1668
1669	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
1670	my $user_id;
1671
1672	# quick check to start to see if we've already got one
1673	$sth->execute($username);
1674	($user_id) = $sth->fetchrow_array;
1675
1676	return ('FAIL', "User already exists") if $user_id;
1677
1678	# Allow transactions, and raise an exception on errors so we can catch it later.
1679	# Use local to make sure these get "reset" properly on exiting this block
1680	local $dbh->{AutoCommit} = 0;
1681	local $dbh->{RaiseError} = 1;
1682
1683	my $failmsg = '';
1684
1685	# Wrap all the SQL in a transaction
1686	eval {
1687	# insert the user... note we set inherited perms by default since
1688	# it's simple and cleans up some other bits of state
1689	my $sth = $dbh->prepare("INSERT INTO users ".
1690	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
1691	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
1692	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
1693
1694	# get the ID...
1695	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
1696
1697	# Permissions! Gotta set'em all!
1698	die "Invalid permission string $permstring"
1699	if $permstring !~ /^(?:
1700	i # inherit
1701	\|c:\d+ # clone
1702	# custom. no, the leading , is not a typo
1703	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
1704	)$/x;
1705	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
1706	if ($permstring ne 'i') {
1707	# for cloned or custom permissions, we have to create a new permissions entry.
1708	my $clonesrc = $group;
1709	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
1710	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
1711	"SELECT $permlist,? FROM permissions WHERE permission_id=".
1712	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
1713	undef, ($user_id,$clonesrc) );
1714	$dbh->do("UPDATE users SET permission_id=".
1715	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
1716	"WHERE user_id=?", undef, ($user_id, $user_id) );
1717	}
1718	if ($permstring =~ /^C:/) {
1719	# finally for custom permissions, we set the passed-in permissions (and unset
1720	# any that might have been brought in by the clone operation above)
1721	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
1722	undef, ($user_id) );
1723	foreach (@permtypes) {
1724	if ($permstring =~ /,$_/) {
1725	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
1726	} else {
1727	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
1728	}
1729	}
1730	}
1731
1732	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
1733
1734	##fixme: add another table to hold name/email for log table?
1735
1736	# once we get here, we should have suceeded.
1737	$dbh->commit;
1738	}; # end eval
1739
1740	if ($@) {
1741	my $msg = $@;
1742	eval { $dbh->rollback; };
1743	return ('FAIL',$msg." $failmsg");
1744	} else {
1745	return ('OK',$user_id);
1746	}
1747	} # end addUser
1748
1749
1750	## DNSDB::checkUser()
1751	# Check user/pass combo on login
1752	sub checkUser {
1753	my $dbh = shift;
1754	my $user = shift;
1755	my $inpass = shift;
1756
1757	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
1758	$sth->execute($user);
1759	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
1760	my $loginfailed = 1 if !defined($uid);
1761
1762	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
1763	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
1764	} else {
1765	$loginfailed = 1 if $pass ne $inpass;
1766	}
1767
1768	# nnnngggg
1769	return ($uid, $gid);
1770	} # end checkUser
1771
1772
1773	## DNSDB:: updateUser()
1774	# Update general data about user
1775	sub updateUser {
1776	my $dbh = shift;
1777
1778	##fixme: tweak calling convention so that we can update any given bit of data
1779	my $uid = shift;
1780	my $username = shift;
1781	my $group = shift;
1782	my $pass = shift;
1783	my $state = shift;
1784	my $type = shift \|\| 'u';
1785	my $fname = shift \|\| $username;
1786	my $lname = shift \|\| '';
1787	my $phone = shift \|\| ''; # not going format-check
1788
1789	my $failmsg = '';
1790
1791	# Allow transactions, and raise an exception on errors so we can catch it later.
1792	# Use local to make sure these get "reset" properly on exiting this block
1793	local $dbh->{AutoCommit} = 0;
1794	local $dbh->{RaiseError} = 1;
1795
1796	my $sth;
1797
1798	# Password can be left blank; if so we assume there's one on file.
1799	# Actual blank passwords are bad, mm'kay?
1800	if (!$pass) {
1801	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
1802	$sth->execute($uid);
1803	($pass) = $sth->fetchrow_array;
1804	} else {
1805	$pass = unix_md5_crypt($pass);
1806	}
1807
1808	eval {
1809	my $sth = $dbh->prepare(q(
1810	UPDATE users
1811	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
1812	WHERE user_id=?
1813	)
1814	);
1815	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
1816	$dbh->commit;
1817	};
1818	if ($@) {
1819	my $msg = $@;
1820	eval { $dbh->rollback; };
1821	return ('FAIL',"$failmsg: $msg");
1822	} else {
1823	return ('OK','OK');
1824	}
1825	} # end updateUser()
1826
1827
1828	## DNSDB::delUser()
1829	#
1830	sub delUser {
1831	my $dbh = shift;
1832	return ('FAIL',"Need database handle") if !$dbh;
1833	my $userid = shift;
1834	return ('FAIL',"Missing userid") if !defined($userid);
1835
1836	my $sth = $dbh->prepare("delete from users where user_id=?");
1837	$sth->execute($userid);
1838
1839	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
1840
1841	return ('OK','OK');
1842
1843	} # end delUser
1844
1845
1846	## DNSDB::userFullName()
1847	# Return a pretty string!
1848	# Takes a user_id and optional printf-ish string to indicate which pieces where:
1849	# %u for the username
1850	# %f for the first name
1851	# %l for the last name
1852	# All other text in the passed string will be left as-is.
1853	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
1854	sub userFullName {
1855	$errstr = '';
1856	my $dbh = shift;
1857	my $userid = shift;
1858	my $fullformat = shift \|\| '%f %l (%u)';
1859	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
1860	$sth->execute($userid);
1861	my ($uname,$fname,$lname) = $sth->fetchrow_array();
1862	$errstr = $DBI::errstr if !$uname;
1863
1864	$fullformat =~ s/\%u/$uname/g;
1865	$fullformat =~ s/\%f/$fname/g;
1866	$fullformat =~ s/\%l/$lname/g;
1867
1868	return $fullformat;
1869	} # end userFullName
1870
1871
1872	## DNSDB::userStatus()
1873	# Sets and/or returns a user's status
1874	# Takes a database handle, user ID and optionally a status argument
1875	# Returns undef on errors.
1876	sub userStatus {
1877	my $dbh = shift;
1878	my $id = shift;
1879	my $newstatus = shift;
1880
1881	return undef if $id !~ /^\d+$/;
1882
1883	my $sth;
1884
1885	# ooo, fun! let's see what we were passed for status
1886	if ($newstatus) {
1887	$sth = $dbh->prepare("update users set status=? where user_id=?");
1888	# ass-u-me caller knows what's going on in full
1889	if ($newstatus =~ /^[01]$/) { # only two valid for now.
1890	$sth->execute($newstatus,$id);
1891	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
1892	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
1893	}
1894	}
1895
1896	$sth = $dbh->prepare("select status from users where user_id=?");
1897	$sth->execute($id);
1898	my ($status) = $sth->fetchrow_array;
1899	return $status;
1900	} # end userStatus()
1901
1902
1903	## DNSDB::getUserData()
1904	# Get misc user data for display
1905	sub getUserData {
1906	my $dbh = shift;
1907	my $uid = shift;
1908
1909	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
1910	"FROM users WHERE user_id=?");
1911	$sth->execute($uid);
1912	return $sth->fetchrow_hashref();
1913
1914	} # end getUserData()
1915
1916
1917	## DNSDB::getSOA()
1918	# Return all suitable fields from an SOA record in separate elements of a hash
1919	# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
1920	sub getSOA {
1921	$errstr = '';
1922	my $dbh = shift;
1923	my $def = shift;
1924	my $rev = shift;
1925	my $id = shift;
1926	my %ret;
1927
1928	# (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
1929	# - should really attach serial to the zone parent somewhere
1930
1931	my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
1932	" WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
1933
1934	my $sth = $dbh->prepare($sql);
1935	$sth->execute($id);
1936	##fixme: stick a flag somewhere if the record doesn't exist. by the API, this is an impossible case, but...
1937
1938	my ($recid,$host,$val,$ttl) = $sth->fetchrow_array() or return;
1939	my ($contact,$prins) = split /:/, $host;
1940	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
1941
1942	$ret{recid} = $recid;
1943	$ret{ttl} = $ttl;
1944	# $ret{serial} = $serial; # ca't use distance for serial with default_rev_records
1945	$ret{prins} = $prins;
1946	$ret{contact} = $contact;
1947	$ret{refresh} = $refresh;
1948	$ret{retry} = $retry;
1949	$ret{expire} = $expire;
1950	$ret{minttl} = $minttl;
1951
1952	return %ret;
1953	} # end getSOA()
1954
1955
1956	## DNSDB::updateSOA()
1957	# Update the specified SOA record
1958	# Takes a database handle, default/live flag, forward/reverse flag, and SOA data hash
1959	sub updateSOA {
1960	my $dbh = shift;
1961	my $defrec = shift;
1962	my $revrec = shift;
1963
1964	my %soa = @_;
1965
1966	##fixme: data validation: make sure {recid} is really the SOA for {parent}
1967	my $sql = "UPDATE "._rectable($defrec, $revrec)." SET host=?, val=?, ttl=? WHERE record_id=? AND type=6";
1968	$dbh->do($sql, undef, ("$soa{contact}:$soa{prins}", "$soa{refresh}:$soa{retry}:$soa{expire}:$soa{minttl}",
1969	$soa{ttl}, $soa{recid}));
1970
1971	} # end updateSOA()
1972
1973
1974	## DNSDB::getRecLine()
1975	# Return all data fields for a zone record in separate elements of a hash
1976	# Takes a database handle, default/live flag, forward/reverse flag, and record ID
1977	sub getRecLine {
1978	$errstr = '';
1979	my $dbh = shift;
1980	my $defrec = shift;
1981	my $revrec = shift;
1982	my $id = shift;
1983
1984	my $sql = "SELECT record_id,host,type,val,ttl".($revrec eq 'n' ? ',distance,weight,port' : '').
1985	(($defrec eq 'y') ? ',group_id FROM ' : ',domain_id,rdns_id FROM ').
1986	_rectable($defrec,$revrec)." WHERE record_id=?";
1987	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
1988
1989	if ($dbh->err) {
1990	$errstr = $DBI::errstr;
1991	return undef;
1992	}
1993
1994	if (!$ret) {
1995	$errstr = "No such record";
1996	return undef;
1997	}
1998
1999	# explicitly set a parent id
2000	if ($defrec eq 'y') {
2001	$ret->{parid} = $ret->{group_id};
2002	} else {
2003	$ret->{parid} = (($revrec eq 'n') ? $ret->{domain_id} : $ret->{rdns_id});
2004	# and a secondary if we have a custom type that lives in both a forward and reverse zone
2005	$ret->{secid} = (($revrec eq 'y') ? $ret->{domain_id} : $ret->{rdns_id}) if $ret->{type} > 65279;
2006	}
2007
2008	return $ret;
2009	}
2010
2011
2012	##fixme: should use above (getRecLine()) to get lines for below?
2013	## DNSDB::getDomRecs()
2014	# Return records for a domain
2015	# Takes a database handle, default/live flag, group/domain ID, start,
2016	# number of records, sort field, and sort order
2017	# Returns a reference to an array of hashes
2018	sub getDomRecs {
2019	$errstr = '';
2020	my $dbh = shift;
2021	my $def = shift;
2022	my $rev = shift;
2023	my $id = shift;
2024	my $nrecs = shift \|\| 'all';
2025	my $nstart = shift \|\| 0;
2026
2027	## for order, need to map input to column names
2028	my $order = shift \|\| 'host';
2029	my $direction = shift \|\| 'ASC';
2030
2031	my $filter = shift \|\| '';
2032
2033	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
2034	$sql .= ",r.distance,r.weight,r.port" if $rev eq 'n';
2035	$sql .= " FROM "._rectable($def,$rev)." r ";
2036
2037	# whee! multisort means just passing comma-separated fields in sortby!
2038	my $newsort = '';
2039	foreach my $sf (split /,/, $order) {
2040	$sf = "r.$sf";
2041	$sf =~ s/r\.type/t.alphaorder/;
2042	$newsort .= ",$sf";
2043	}
2044	$newsort =~ s/^,//;
2045
2046	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
2047	$sql .= "WHERE "._recparent($def,$rev)." = ?";
2048	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
2049	$sql .= " AND host ~* ?" if $filter;
2050	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
2051	$sql .= " ORDER BY $newsort $direction";
2052
2053	my @bindvars = ($id);
2054	push @bindvars, $filter if $filter;
2055
2056	# just to be ultraparanoid about SQL injection vectors
2057	if ($nstart ne 'all') {
2058	$sql .= " LIMIT ? OFFSET ?";
2059	push @bindvars, $nrecs;
2060	push @bindvars, ($nstart*$nrecs);
2061	}
2062	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
2063	$sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
2064
2065	my @retbase;
2066	while (my $ref = $sth->fetchrow_hashref()) {
2067	push @retbase, $ref;
2068	}
2069
2070	my $ret = \@retbase;
2071	return $ret;
2072	} # end getDomRecs()
2073
2074
2075	## DNSDB::getRecCount()
2076	# Return count of non-SOA records in zone (or default records in a group)
2077	# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
2078	# and optional filtering modifier
2079	# Returns the count
2080	sub getRecCount {
2081	my $dbh = shift;
2082	my $defrec = shift;
2083	my $revrec = shift;
2084	my $id = shift;
2085	my $filter = shift \|\| '';
2086
2087	# keep the nasties down, since we can't ?-sub this bit. :/
2088	# note this is chars allowed in DNS hostnames
2089	$filter =~ s/[^a-zA-Z0-9_.:-]//g;
2090
2091	my @bindvars = ($id);
2092	push @bindvars, $filter if $filter;
2093	my $sql = "SELECT count(*) FROM ".
2094	_rectable($defrec,$revrec).
2095	" WHERE "._recparent($defrec,$revrec)."=? ".
2096	"AND NOT type=$reverse_typemap{SOA}".
2097	($filter ? " AND host ~* ?" : '');
2098	my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
2099
2100	return $count;
2101
2102	} # end getRecCount()
2103
2104
2105	## DNSDB::addRec()
2106	# Add a new record to a domain or a group's default records
2107	# Takes a database handle, default/live flag, group/domain ID,
2108	# host, type, value, and TTL
2109	# Some types require additional detail: "distance" for MX and SRV,
2110	# and weight/port for SRV
2111	# Returns a status code and detail message in case of error
2112	##fixme: pass a hash with the record data, not a series of separate values
2113	sub addRec {
2114	$errstr = '';
2115	my $dbh = shift;
2116	my $defrec = shift;
2117	my $revrec = shift;
2118	my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
2119	# domain_id for domain records)
2120
2121	my $host = shift;
2122	my $rectype = shift; # reference so we can coerce it if "+"-types can't find both zones
2123	my $val = shift;
2124	my $ttl = shift;
2125
2126	# Spaces are evil.
2127	$host =~ s/^\s+//;
2128	$host =~ s/\s+$//;
2129	if ($typemap{$rectype} ne 'TXT') {
2130	# Leading or trailng spaces could be legit in TXT records.
2131	$val =~ s/^\s+//;
2132	$val =~ s/\s+$//;
2133	}
2134
2135	# Validation
2136	my $addr = NetAddr::IP->new($val);
2137	if ($rectype == $reverse_typemap{A}) {
2138	return ('FAIL',$typemap{$rectype}." record must be a valid IPv4 address")
2139	unless $addr && !$addr->{isv6};
2140	}
2141	if ($rectype == $reverse_typemap{AAAA}) {
2142	return ('FAIL',$typemap{$rectype}." record must be a valid IPv6 address")
2143	unless $addr && $addr->{isv6};
2144	}
2145
2146	my $domid = 0;
2147	my $revid = 0;
2148
2149	my $retcode = 'OK'; # assume everything will go OK
2150	my $retmsg = '';
2151
2152	# do simple validation first
2153	return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
2154
2155	# Quick check on hostname parts. Note the regex is more forgiving than the error message;
2156	# domain names technically are case-insensitive, and we use printf-like % codes for a couple
2157	# of types. Other things may also be added to validate default records of several flavours.
2158	return ('FAIL', "Hostnames may not contain anything other than (0-9 a-z . _)")
2159	if $defrec eq 'n' && $$host !~ /^[0-9a-z_%.]+$/i;
2160
2161	# Collect these even if we're only doing a simple A record so we can call any validation sub
2162	my $dist = shift;
2163	my $port = shift;
2164	my $weight = shift;
2165
2166	my $fields;
2167	my @vallist;
2168
2169	# Call the validation sub for the type requested.
2170	($retcode,$retmsg) = $validators{$$rectype}($dbh, (defrec => $defrec, revrec => $revrec, id => $id,
2171	host => $host, rectype => $rectype, val => $val, addr => $addr,
2172	dist => \$dist, port => \$port, weight => \$weight,
2173	fields => \$fields, vallist => \@vallist) );
2174
2175	return ($retcode,$retmsg) if $retcode eq 'FAIL';
2176
2177	# Set up database fields and bind parameters
2178	$fields .= "host,type,val,ttl,"._recparent($defrec,$revrec);
2179	push @vallist, ($$host,$$rectype,$$val,$ttl,$id);
2180	my $vallen = '?'.(',?'x$#vallist);
2181
2182	# Allow transactions, and raise an exception on errors so we can catch it later.
2183	# Use local to make sure these get "reset" properly on exiting this block
2184	local $dbh->{AutoCommit} = 0;
2185	local $dbh->{RaiseError} = 1;
2186
2187	eval {
2188	$dbh->do("INSERT INTO "._rectable($defrec, $revrec)." ($fields) VALUES ($vallen)",
2189	undef, @vallist);
2190	$dbh->commit;
2191	};
2192	if ($@) {
2193	my $msg = $@;
2194	eval { $dbh->rollback; };
2195	return ('FAIL',$msg);
2196	}
2197
2198	return ($retcode, $retmsg);
2199
2200	} # end addRec()
2201
2202
2203	## DNSDB::updateRec()
2204	# Update a record
2205	sub updateRec {
2206	$errstr = '';
2207
2208	my $dbh = shift;
2209	my $defrec = shift;
2210	my $id = shift;
2211
2212	# all records have these
2213	my $host = shift;
2214	my $type = shift;
2215	my $val = shift;
2216	my $ttl = shift;
2217
2218	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
2219
2220	# Spaces are evil.
2221	$host =~ s/^\s+//;
2222	$host =~ s/\s+$//;
2223	if ($typemap{$type} ne 'TXT') {
2224	# Leading or trailng spaces could be legit in TXT records.
2225	$val =~ s/^\s+//;
2226	$val =~ s/\s+$//;
2227	}
2228
2229	# only MX and SRV will use these
2230	my $dist = 0;
2231	my $weight = 0;
2232	my $port = 0;
2233
2234	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
2235	$dist = shift;
2236	$dist =~ s/\s+//g;
2237	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
2238	return ('FAIL', "Distance must be numeric") unless $dist =~ /^\d+$/;
2239	if ($type == $reverse_typemap{SRV}) {
2240	$weight = shift;
2241	$weight =~ s/\s+//g;
2242	return ('FAIL',"SRV requires weight") if !defined($weight);
2243	return ('FAIL',"Weight must be numeric") unless $weight =~ /^\d+$/;
2244	$port = shift;
2245	$port =~ s/\s+//g;
2246	return ('FAIL',"SRV requires port") if !defined($port);
2247	return ('FAIL',"Port must be numeric") unless $port =~ /^\d+$/;
2248	}
2249	}
2250
2251	# Enforce IP addresses on A and AAAA types
2252	my $addr = NetAddr::IP->new($val);
2253	if ($type == $reverse_typemap{A}) {
2254	return ('FAIL',$typemap{$type}." record must be a valid IPv4 address")
2255	unless $addr && !$addr->{isv6};
2256	}
2257	if ($type == $reverse_typemap{AAAA}) {
2258	return ('FAIL',$typemap{$type}." record must be a valid IPv6 address")
2259	unless $addr && $addr->{isv6};
2260	}
2261
2262	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
2263	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
2264	# if ($val =~ /^\s[\da-f:.]+\s$/) {
2265	# return ('FAIL',"$val is not a valid IP address") if !$addr;
2266	# }
2267	# }
2268
2269	local $dbh->{AutoCommit} = 0;
2270	local $dbh->{RaiseError} = 1;
2271
2272	eval {
2273	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
2274	"SET host=?,val=?,type=?,ttl=?,distance=?,weight=?,port=? ".
2275	"WHERE record_id=?", undef, ($host, $val, $type, $ttl, $dist, $weight, $port, $id) );
2276	$dbh->commit;
2277	};
2278	if ($@) {
2279	my $msg = $@;
2280	$dbh->rollback;
2281	return ('FAIL', $msg);
2282	}
2283
2284	return ('OK','OK');
2285	} # end updateRec()
2286
2287
2288	## DNSDB::delRec()
2289	# Delete a record.
2290	sub delRec {
2291	$errstr = '';
2292	my $dbh = shift;
2293	my $defrec = shift;
2294	my $revrec = shift;
2295	my $id = shift;
2296
2297	my $sth = $dbh->prepare("DELETE FROM "._rectable($defrec,$revrec)." WHERE record_id=?");
2298	$sth->execute($id);
2299
2300	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
2301
2302	return ('OK','OK');
2303	} # end delRec()
2304
2305
2306	# Reference hashes.
2307	my %par_tbl = (
2308	group => 'groups',
2309	user => 'users',
2310	defrec => 'default_records',
2311	defrevrec => 'default_rev_records',
2312	domain => 'domains',
2313	revzone => 'revzones',
2314	record => 'records'
2315	);
2316	my %id_col = (
2317	group => 'group_id',
2318	user => 'user_id',
2319	defrec => 'record_id',
2320	defrevrec => 'record_id',
2321	domain => 'domain_id',
2322	revzone => 'rdns_id',
2323	record => 'record_id'
2324	);
2325	my %par_col = (
2326	group => 'parent_group_id',
2327	user => 'group_id',
2328	defrec => 'group_id',
2329	defrevrec => 'group_id',
2330	domain => 'group_id',
2331	revzone => 'group_id',
2332	record => 'domain_id'
2333	);
2334	my %par_type = (
2335	group => 'group',
2336	user => 'group',
2337	defrec => 'group',
2338	defrevrec => 'group',
2339	domain => 'group',
2340	revzone => 'group',
2341	record => 'domain'
2342	);
2343
2344
2345	## DNSDB::getTypelist()
2346	# Get a list of record types for various UI dropdowns
2347	# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
2348	# Returns an arrayref to list of hashrefs perfect for HTML::Template
2349	sub getTypelist {
2350	my $dbh = shift;
2351	my $recgroup = shift;
2352	my $type = shift \|\| $reverse_typemap{A};
2353
2354	# also accepting $webvar{revrec}!
2355	$recgroup = 'f' if $recgroup eq 'n';
2356	$recgroup = 'r' if $recgroup eq 'y';
2357
2358	my $sql = "SELECT val,name FROM rectypes WHERE ";
2359	if ($recgroup eq 'r') {
2360	# reverse zone types
2361	$sql .= "stdflag=2 OR stdflag=3";
2362	} elsif ($recgroup eq 'l') {
2363	# DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
2364	$sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
2365	} else {
2366	# default; forward zone types. technically $type eq 'f' but not worth the error message.
2367	$sql .= "stdflag=1 OR stdflag=2";
2368	}
2369	$sql .= " ORDER BY listorder";
2370
2371	my $sth = $dbh->prepare($sql);
2372	$sth->execute;
2373	my @typelist;
2374	while (my ($rval,$rname) = $sth->fetchrow_array()) {
2375	my %row = ( recval => $rval, recname => $rname );
2376	$row{tselect} = 1 if $rval == $type;
2377	push @typelist, \%row;
2378	}
2379
2380	# Add SOA on lookups since it's not listed in other dropdowns.
2381	if ($recgroup eq 'l') {
2382	my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
2383	$row{tselect} = 1 if $reverse_typemap{SOA} == $type;
2384	push @typelist, \%row;
2385	}
2386
2387	return \@typelist;
2388	} # end getTypelist()
2389
2390
2391	## DNSDB::parentID()
2392	# Get ID of entity that is nearest parent to requested id
2393	# Takes a database handle and a hash of entity ID, entity type, optional parent type flag
2394	# (domain/reverse zone or group), and optional default/live and forward/reverse flags
2395	# Returns the ID or undef on failure
2396	sub parentID {
2397	my $dbh = shift;
2398
2399	my %args = @_;
2400
2401	# clean up the parent-type. Set it to group if not set; coerce revzone to domain for simpler logic
2402	$args{partype} = 'group' if !$args{partype};
2403	$args{partype} = 'domain' if $args{partype} eq 'revzone';
2404
2405	# clean up defrec and revrec. default to live record, forward zone
2406	$args{defrec} = 'n' if !$args{defrec};
2407	$args{revrec} = 'n' if !$args{revrec};
2408
2409	if ($par_type{$args{partype}} eq 'domain') {
2410	# only live records can have a domain/zone parent
2411	return unless ($args{type} eq 'record' && $args{defrec} eq 'n');
2412	my $result = $dbh->selectrow_hashref("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
2413	" FROM records WHERE record_id = ?",
2414	undef, ($args{id}) ) or return;
2415	return $result;
2416	} else {
2417	# snag some arguments that will either fall through or be overwritten to save some code duplication
2418	my $tmpid = $args{id};
2419	my $type = $args{type};
2420	if ($type eq 'record' && $args{defrec} eq 'n') {
2421	# Live records go through the records table first.
2422	($tmpid) = $dbh->selectrow_array("SELECT ".($args{revrec} eq 'n' ? 'domain_id' : 'rdns_id').
2423	" FROM records WHERE record_id = ?",
2424	undef, ($args{id}) ) or return;
2425	$type = ($args{revrec} eq 'n' ? 'domain' : 'revzone');
2426	}
2427	my ($result) = $dbh->selectrow_array("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
2428	undef, ($tmpid) );
2429	return $result;
2430	}
2431	# should be impossible to get here with even remotely sane arguments
2432	return;
2433	} # end parentID()
2434
2435
2436	## DNSDB::isParent()
2437	# Returns true if $id1 is a parent of $id2, false otherwise
2438	sub isParent {
2439	my $dbh = shift;
2440	my $id1 = shift;
2441	my $type1 = shift;
2442	my $id2 = shift;
2443	my $type2 = shift;
2444	##todo: immediate, secondary, full (default)
2445
2446	# Return false on invalid types
2447	return 0 if !grep /^$type1$/, ('record','defrec','defrevrec','user','domain','revzone','group');
2448	return 0 if !grep /^$type2$/, ('record','defrec','defrevrec','user','domain','revzone','group');
2449
2450	# Return false on impossible relations
2451	return 0 if $type1 eq 'record'; # nothing may be a child of a record
2452	return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
2453	return 0 if $type1 eq 'defrevrec'; # nothing may be a child of a record
2454	return 0 if $type1 eq 'user'; # nothing may be child of a user
2455	return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
2456	return 0 if $type1 eq 'revzone' && $type2 ne 'record';# reverse zone may not be a parent of anything other than a record
2457
2458	# ennnhhhh.... if we're passed an id of 0, it will never be found. usual
2459	# case would be the UI creating a new <thing>, and so we don't have an ID for
2460	# <thing> to look up yet. in that case the UI should check the parent as well.
2461	return 0 if $id1 == 0; # nothing can have a parent id of 0
2462	return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
2463
2464	# group 1 is the ultimate root parent
2465	return 1 if $type1 eq 'group' && $id1 == 1;
2466
2467	# groups are always (a) parent of themselves
2468	return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
2469
2470	my $id = $id2;
2471	my $type = $type2;
2472	my $foundparent = 0;
2473
2474	# Records are the only entity with two possible parents. We need to split the parent checks on
2475	# domain/rdns.
2476	if ($type eq 'record') {
2477	my ($dom,$rdns) = $dbh->selectrow_array("SELECT domain_id,rdns_id FROM records WHERE record_id=?",
2478	undef, ($id));
2479	# check immediate parent against request
2480	return 1 if $type1 eq 'domain' && $id1 == $dom;
2481	return 1 if $type1 eq 'revzone' && $id1 == $rdns;
2482	# if request is group, check both parents. Only check if the parent is nonzero though.
2483	return 1 if $dom && isParent($dbh, $id1, $type1, $dom, 'domain');
2484	return 1 if $rdns && isParent($dbh, $id1, $type1, $rdns, 'revzone');
2485	# exit here since we've executed the loop below by proxy in the above recursive calls.
2486	return 0;
2487	}
2488
2489	# almost the same loop as getParents() above
2490	my $limiter = 0;
2491	while (1) {
2492	my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
2493	my $result = $dbh->selectrow_hashref($sql,
2494	undef, ($id) );
2495	if (!$result) {
2496	$limiter++;
2497	##fixme: how often will this happen on a live site? fail at max limiter <n>?
2498	warn "no results looking for $sql with id $id (depth $limiter)\n";
2499	last;
2500	}
2501	if ($result && $result->{$par_col{$type}} == $id1) {
2502	$foundparent = 1;
2503	last;
2504	} else {
2505	##fixme: do we care about trying to return a "no such record/domain/user/group" error?
2506	# should be impossible to create an inconsistent DB just with API calls.
2507	warn $dbh->errstr." $sql, $id" if $dbh->errstr;
2508	}
2509	# group 1 is its own parent. need this here more to break strange loops than for detecting a parent
2510	last if $result->{$par_col{$type}} == 1;
2511	$id = $result->{$par_col{$type}};
2512	$type = $par_type{$type};
2513	}
2514
2515	return $foundparent;
2516	} # end isParent()
2517
2518
2519	## DNSDB::domStatus()
2520	# Sets and/or returns a domain's status
2521	# Takes a database handle, domain ID and optionally a status argument
2522	# Returns undef on errors.
2523	sub domStatus {
2524	my $dbh = shift;
2525	my $id = shift;
2526	my $newstatus = shift;
2527
2528	return undef if $id !~ /^\d+$/;
2529
2530	my $sth;
2531
2532	# ooo, fun! let's see what we were passed for status
2533	if ($newstatus) {
2534	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
2535	# ass-u-me caller knows what's going on in full
2536	if ($newstatus =~ /^[01]$/) { # only two valid for now.
2537	$sth->execute($newstatus,$id);
2538	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
2539	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
2540	}
2541	}
2542
2543	$sth = $dbh->prepare("select status from domains where domain_id=?");
2544	$sth->execute($id);
2545	my ($status) = $sth->fetchrow_array;
2546	return $status;
2547	} # end domStatus()
2548
2549
2550	## DNSDB::importAXFR
2551	# Import a domain via AXFR
2552	# Takes AXFR host, domain to transfer, group to put the domain in,
2553	# and optionally:
2554	# - active/inactive state flag (defaults to active)
2555	# - overwrite-SOA flag (defaults to off)
2556	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
2557	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
2558	# if status is OK, but WARN includes conditions that are not fatal but should
2559	# really be reported.
2560	sub importAXFR {
2561	my $dbh = shift;
2562	my $ifrom_in = shift;
2563	my $domain = shift;
2564	my $group = shift;
2565	my $status = shift;
2566	$status = (defined($status) ? $status : 0); # force sane semantics, and allow passing "null" (inactive) status
2567	my $rwsoa = shift \|\| 0;
2568	my $rwns = shift \|\| 0;
2569	my $newttl = shift;
2570
2571	##fixme: add mode to delete&replace, merge+overwrite, merge new?
2572
2573	my $nrecs = 0;
2574	my $soaflag = 0;
2575	my $nsflag = 0;
2576	my $warnmsg = '';
2577	my $ifrom;
2578
2579	# choke on possible bad setting in ifrom
2580	# IPv4 and v6, and valid hostnames!
2581	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
2582	return ('FAIL', "Bad AXFR source host $ifrom")
2583	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
2584
2585	# Allow transactions, and raise an exception on errors so we can catch it later.
2586	# Use local to make sure these get "reset" properly on exiting this block
2587	local $dbh->{AutoCommit} = 0;
2588	local $dbh->{RaiseError} = 1;
2589
2590	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
2591	my $dom_id;
2592
2593	# quick check to start to see if we've already got one
2594	$sth->execute($domain);
2595	($dom_id) = $sth->fetchrow_array;
2596
2597	return ('FAIL', "Domain already exists") if $dom_id;
2598
2599	eval {
2600	# can't do this, can't nest transactions. sigh.
2601	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
2602
2603	##fixme: serial
2604	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
2605	$sth->execute($domain,$group,$status);
2606
2607	## bizarre DBI<->Net::DNS interaction bug:
2608	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
2609	## fixed, apparently I was doing something odd, but not certain what it was that
2610	## caused a commit instead of barfing
2611
2612	# get domain id so we can do the records
2613	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
2614	$sth->execute($domain);
2615	($dom_id) = $sth->fetchrow_array();
2616
2617	my $res = Net::DNS::Resolver->new;
2618	$res->nameservers($ifrom);
2619	$res->axfr_start($domain)
2620	or die "Couldn't begin AXFR\n";
2621
2622	while (my $rr = $res->axfr_next()) {
2623	my $type = $rr->type;
2624	my $ttl = ($newttl ? $newttl : $rr->ttl); # allow force-override TTLs
2625
2626	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
2627	my $vallen = "?,?,?,?,?";
2628
2629	$soaflag = 1 if $type eq 'SOA';
2630	$nsflag = 1 if $type eq 'NS';
2631
2632	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $ttl);
2633
2634	# "Primary" types:
2635	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
2636	# maybe KEY
2637
2638	# nasty big ugly case-like thing here, since we have to do some different
2639	# processing depending on the record. le sigh.
2640
2641	##fixme: what record types other than TXT can/will have >255-byte payloads?
2642
2643	if ($type eq 'A') {
2644	push @vallist, $rr->address;
2645	} elsif ($type eq 'NS') {
2646	# hmm. should we warn here if subdomain NS'es are left alone?
2647	next if ($rwns && ($rr->name eq $domain));
2648	push @vallist, $rr->nsdname;
2649	$nsflag = 1;
2650	} elsif ($type eq 'CNAME') {
2651	push @vallist, $rr->cname;
2652	} elsif ($type eq 'SOA') {
2653	next if $rwsoa;
2654	$vallist[1] = $rr->mname.":".$rr->rname;
2655	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
2656	$soaflag = 1;
2657	} elsif ($type eq 'PTR') {
2658	push @vallist, $rr->ptrdname;
2659	# hmm. PTR records should not be in forward zones.
2660	} elsif ($type eq 'MX') {
2661	$sql .= ",distance";
2662	$vallen .= ",?";
2663	push @vallist, $rr->exchange;
2664	push @vallist, $rr->preference;
2665	} elsif ($type eq 'TXT') {
2666	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
2667	## but don't really seem enthusiastic about it.
2668	my $rrdata = $rr->txtdata;
2669	push @vallist, $rrdata;
2670	} elsif ($type eq 'SPF') {
2671	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
2672	my $rrdata = $rr->txtdata;
2673	push @vallist, $rrdata;
2674	} elsif ($type eq 'AAAA') {
2675	push @vallist, $rr->address;
2676	} elsif ($type eq 'SRV') {
2677	$sql .= ",distance,weight,port" if $type eq 'SRV';
2678	$vallen .= ",?,?,?" if $type eq 'SRV';
2679	push @vallist, $rr->target;
2680	push @vallist, $rr->priority;
2681	push @vallist, $rr->weight;
2682	push @vallist, $rr->port;
2683	} elsif ($type eq 'KEY') {
2684	# we don't actually know what to do with these...
2685	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
2686	} else {
2687	my $rrdata = $rr->rdatastr;
2688	push @vallist, $rrdata;
2689	# Finding a different record type is not fatal.... just problematic.
2690	# We may not be able to export it correctly.
2691	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
2692	}
2693
2694	# BIND supports:
2695	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
2696	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
2697	# ... if one can ever find the right magic to format them correctly
2698
2699	# Net::DNS supports:
2700	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
2701	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
2702	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
2703
2704	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
2705	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
2706
2707	$nrecs++;
2708
2709	} # while axfr_next
2710
2711	# Overwrite SOA record
2712	if ($rwsoa) {
2713	$soaflag = 1;
2714	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
2715	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
2716	$sthgetsoa->execute($group,$reverse_typemap{SOA});
2717	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
2718	$host =~ s/DOMAIN/$domain/g;
2719	$val =~ s/DOMAIN/$domain/g;
2720	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
2721	}
2722	}
2723
2724	# Overwrite NS records
2725	if ($rwns) {
2726	$nsflag = 1;
2727	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
2728	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
2729	$sthgetns->execute($group,$reverse_typemap{NS});
2730	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
2731	$host =~ s/DOMAIN/$domain/g;
2732	$val =~ s/DOMAIN/$domain/g;
2733	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
2734	}
2735	}
2736
2737	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
2738	die "Bad zone: No SOA record!\n" if !$soaflag;
2739	die "Bad zone: No NS records!\n" if !$nsflag;
2740
2741	$dbh->commit;
2742
2743	};
2744
2745	if ($@) {
2746	my $msg = $@;
2747	eval { $dbh->rollback; };
2748	return ('FAIL',$msg." $warnmsg");
2749	} else {
2750	return ('WARN', $warnmsg) if $warnmsg;
2751	return ('OK',"Imported OK");
2752	}
2753
2754	# it should be impossible to get here.
2755	return ('WARN',"OOOK!");
2756	} # end importAXFR()
2757
2758
2759	## DNSDB::export()
2760	# Export the DNS database, or a part of it
2761	# Takes database handle, export type, optional arguments depending on type
2762	# Writes zone data to targets as appropriate for type
2763	sub export {
2764	my $dbh = shift;
2765	my $target = shift;
2766
2767	if ($target eq 'tiny') {
2768	__export_tiny($dbh,@_);
2769	}
2770	# elsif ($target eq 'foo') {
2771	# __export_foo($dbh,@_);
2772	#}
2773	# etc
2774
2775	} # end export()
2776
2777
2778	## DNSDB::__export_tiny
2779	# Internal sub to implement tinyDNS (compatible) export
2780	# Takes database handle, filehandle to write export to, optional argument(s)
2781	# to determine which data gets exported
2782	sub __export_tiny {
2783	my $dbh = shift;
2784	my $datafile = shift;
2785
2786	##fixme: slurp up further options to specify particular zone(s) to export
2787
2788	## Convert a bare number into an octal-coded pair of octets.
2789	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
2790	sub octalize {
2791	my $tmp = shift;
2792	my $srctype = shift \|\| 'h'; # default assumes hex string
2793	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
2794	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
2795	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
2796	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
2797	}
2798
2799	##fixme: fail if $datafile isn't an open, writable file
2800
2801	# easy case - export all evarything
2802	# not-so-easy case - export item(s) specified
2803	# todo: figure out what kind of list we use to export items
2804
2805	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
2806	my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl ".
2807	"FROM records WHERE domain_id=?");
2808	$domsth->execute();
2809	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
2810	$recsth->execute($domid);
2811	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $recsth->fetchrow_array) {
2812	##fixme: need to store location in the db, and retrieve it here.
2813	# temporarily hardcoded to empty so we can include it further down.
2814	my $loc = '';
2815
2816	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
2817	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
2818	# timestamps are TAI64
2819	# ~~ 2^62 + time()
2820	my $stamp = '';
2821
2822	# raw packet in unknown format: first byte indicates length
2823	# of remaining data, allows up to 255 raw bytes
2824
2825	# Spaces are evil.
2826	$host =~ s/^\s+//;
2827	$host =~ s/\s+$//;
2828	if ($typemap{$type} ne 'TXT') {
2829	# Leading or trailng spaces could be legit in TXT records.
2830	$val =~ s/^\s+//;
2831	$val =~ s/\s+$//;
2832	}
2833
2834	##fixme? append . to all host/val hostnames
2835	if ($typemap{$type} eq 'SOA') {
2836
2837	# host contains pri-ns:responsible
2838	# val is abused to contain refresh:retry:expire:minttl
2839	##fixme: "manual" serial vs tinydns-autoserial
2840	# let's be explicit about abusing $host and $val
2841	my ($email, $primary) = (split /:/, $host)[0,1];
2842	my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
2843	print $datafile "Z$dom:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
2844
2845	} elsif ($typemap{$type} eq 'A') {
2846
2847	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
2848
2849	} elsif ($typemap{$type} eq 'NS') {
2850
2851	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
2852
2853	} elsif ($typemap{$type} eq 'AAAA') {
2854
2855	print $datafile ":$host:28:";
2856	my $altgrp = 0;
2857	my @altconv;
2858	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
2859	foreach (split /:/, $val) {
2860	if (/^$/) {
2861	# flag blank entry; this is a series of 0's of (currently) unknown length
2862	$altconv[$altgrp++] = 's';
2863	} else {
2864	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
2865	$altconv[$altgrp++] = octalize($_)
2866	}
2867	}
2868	foreach my $octet (@altconv) {
2869	# if not 's', output
2870	print $datafile $octet unless $octet =~ /^s$/;
2871	# if 's', output (9-array length)x literal '\000\000'
2872	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
2873	}
2874	print $datafile ":$ttl:$stamp:$loc\n";
2875
2876	} elsif ($typemap{$type} eq 'MX') {
2877
2878	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
2879
2880	} elsif ($typemap{$type} eq 'TXT') {
2881
2882	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
2883	$val =~ s/:/\\072/g; # may need to replace other symbols
2884	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
2885
2886	# by-hand TXT
2887	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
2888	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
2889	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
2890
2891	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
2892	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
2893
2894	# very long TXT record as brought in by axfr-get
2895	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
2896	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
2897	#:longtxt.deepnet.cx:16:
2898	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
2899	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
2900	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
2901	#:3600
2902
2903	} elsif ($typemap{$type} eq 'CNAME') {
2904
2905	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
2906
2907	} elsif ($typemap{$type} eq 'SRV') {
2908
2909	# data is two-byte values for priority, weight, port, in that order,
2910	# followed by length/string data
2911
2912	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
2913
2914	$val .= '.' if $val !~ /\.$/;
2915	foreach (split /\./, $val) {
2916	printf $datafile "\\%0.3o%s", length($_), $_;
2917	}
2918	print $datafile "\\000:$ttl:$stamp:$loc\n";
2919
2920	} elsif ($typemap{$type} eq 'RP') {
2921
2922	# RP consists of two mostly free-form strings.
2923	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
2924	# The second is the "hostname" of a TXT record with more info.
2925	print $datafile ":$host:17:";
2926	my ($who,$what) = split /\s/, $val;
2927	foreach (split /\./, $who) {
2928	printf $datafile "\\%0.3o%s", length($_), $_;
2929	}
2930	print $datafile '\000';
2931	foreach (split /\./, $what) {
2932	printf $datafile "\\%0.3o%s", length($_), $_;
2933	}
2934	print $datafile "\\000:$ttl:$stamp:$loc\n";
2935
2936	} elsif ($typemap{$type} eq 'PTR') {
2937
2938	# must handle both IPv4 and IPv6
2939	##work
2940	# data should already be in suitable reverse order.
2941	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
2942
2943	} else {
2944	# raw record. we don't know what's in here, so we ASS-U-ME the user has
2945	# put it in correctly, since either the user is messing directly with the
2946	# database, or the record was imported via AXFR
2947	# <split by char>
2948	# convert anything not a-zA-Z0-9.- to octal coding
2949
2950	##fixme: add flag to export "unknown" record types - note we'll probably end up
2951	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
2952	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
2953
2954	} # record type if-else
2955
2956	} # while ($recsth)
2957	} # while ($domsth)
2958	} # end __export_tiny()
2959
2960
2961	## DNSDB::mailNotify()
2962	# Sends notification mail to recipients regarding an IPDB operation
2963	sub mailNotify {
2964	my $dbh = shift;
2965	my ($subj,$message) = @_;
2966
2967	return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
2968
2969	my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
2970
2971	my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
2972
2973	$mailer->mail($mailsender);
2974	$mailer->to($config{mailnotify});
2975	$mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
2976	"To: <$config{mailnotify}>\n",
2977	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
2978	"Subject: $subj\n",
2979	"X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
2980	"Organization: $config{orgname}\n",
2981	"\n$message\n");
2982	$mailer->quit;
2983	}
2984
2985	# shut Perl up
2986	1;

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