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source: trunk/DNSDB.pm@ 226

Last change on this file since 226 was 226, checked in by Kris Deugau, 13 years ago

/trunk

Update addRec() for reverse zones, first pass. A+PTR and AAAA+PTR should be complete.
See #26.

Property svn:keywords set to Date Rev Author Id

File size: 75.7 KB

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1	# dns/trunk/DNSDB.pm
2	# Abstraction functions for DNS administration
3	###
4	# SVN revision info
5	# $Date: 2012-01-27 21:45:00 +0000 (Fri, 27 Jan 2012) $
6	# SVN revision $Rev: 226 $
7	# Last update by $Author: kdeugau $
8	###
9	# Copyright (C) 2008-2011 - Kris Deugau <kdeugau@deepnet.cx>
10
11	package DNSDB;
12
13	use strict;
14	use warnings;
15	use Exporter;
16	use DBI;
17	use Net::DNS;
18	use Crypt::PasswdMD5;
19	use Net::SMTP;
20	use NetAddr::IP qw(:lower);
21	use POSIX;
22	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
23
24	$VERSION = 0.1; ##VERSION##
25	@ISA = qw(Exporter);
26	@EXPORT_OK = qw(
27	&initGlobals
28	&initPermissions &getPermissions &changePermissions &comparePermissions
29	&changeGroup
30	&loadConfig &connectDB &finish
31	&addDomain &delDomain &domainName &domainID
32	&addGroup &delGroup &getChildren &groupName
33	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
34	&getSOA &getRecLine &getDomRecs &getRecCount
35	&addRec &updateRec &delRec
36	&getTypelist
37	&getParents
38	&isParent
39	&domStatus &importAXFR
40	&export
41	&mailNotify
42	%typemap %reverse_typemap %config
43	%permissions @permtypes $permlist
44	);
45
46	@EXPORT = (); # Export nothing by default.
47	%EXPORT_TAGS = ( ALL => [qw(
48	&initGlobals
49	&initPermissions &getPermissions &changePermissions &comparePermissions
50	&changeGroup
51	&loadConfig &connectDB &finish
52	&addDomain &delDomain &domainName &domainID
53	&addGroup &delGroup &getChildren &groupName
54	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
55	&getSOA &getRecLine &getDomRecs &getRecCount
56	&addRec &updateRec &delRec
57	&getTypelist
58	&getParents
59	&isParent
60	&domStatus &importAXFR
61	&export
62	&mailNotify
63	%typemap %reverse_typemap %config
64	%permissions @permtypes $permlist
65	)]
66	);
67
68	our $group = 1;
69	our $errstr = '';
70
71	# Halfway sane defaults for SOA, TTL, etc.
72	# serial defaults to 0 for convenience.
73	# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
74	our %def = qw (
75	contact hostmaster.DOMAIN
76	prins ns1.myserver.com
77	serial 0
78	soattl 86400
79	refresh 10800
80	retry 3600
81	expire 604800
82	minttl 10800
83	ttl 10800
84	);
85
86	# Arguably defined wholly in the db, but little reason to change without supporting code changes
87	our @permtypes = qw (
88	group_edit group_create group_delete
89	user_edit user_create user_delete
90	domain_edit domain_create domain_delete
91	record_edit record_create record_delete
92	self_edit admin
93	);
94	our $permlist = join(',',@permtypes);
95
96	# DNS record type map and reverse map.
97	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
98	our %typemap;
99	our %reverse_typemap;
100
101	our %permissions;
102
103	# Prepopulate a basic config. Note some of these will cause errors if left unset.
104	# note: add appropriate stanzas in loadConfig to parse these
105	our %config = (
106	# Database connection info
107	dbname => 'dnsdb',
108	dbuser => 'dnsdb',
109	dbpass => 'secret',
110	dbhost => '',
111
112	# Email notice settings
113	mailhost => 'smtp.example.com',
114	mailnotify => 'dnsdb@example.com', # to
115	mailsender => 'dnsdb@example.com', # from
116	mailname => 'DNS Administration',
117	orgname => 'Example Corp',
118	domain => 'example.com',
119
120	# Template directory
121	templatedir => 'templates/',
122	# fmeh. this is a real web path, not a logical internal one. hm..
123	# cssdir => 'templates/',
124	sessiondir => 'session/',
125
126	# Session params
127	timeout => '3600', # 1 hour default
128
129	# Other miscellanea
130	log_failures => 1, # log all evarthing by default
131	perpage => 15,
132	);
133
134
135	##
136	## utility functions
137	# _rectable()
138	# Takes default+rdns flags, returns appropriate table name
139	sub _rectable {
140	my $def = shift;
141	my $rev = shift;
142
143	return 'records' if $def ne 'y';
144	return 'default_records' if $rev ne 'y';
145	return 'default_rev_records';
146	} # end _rectable()
147
148	# _recparent()
149	# Takes default+rdns flags, returns appropriate parent-id column name
150	sub _recparent {
151	my $def = shift;
152	my $rev = shift;
153
154	return 'group_id' if $def eq 'y';
155	return 'rdns_id' if $rev eq 'y';
156	return 'domain_id';
157	} # end _recparent()
158
159	# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
160	# Takes a database handle, default and reverse flags, IP (fragment) to check, parent zone ID,
161	# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
162	# database insertion)
163	sub _ipparent {
164	my $dbh = shift;
165	my $defrec = shift;
166	my $revrec = shift;
167	my $val = shift;
168	my $id = shift;
169	my $addr = shift;
170
171	# subsub to split, reverse, and overlay an IP fragment on a netblock
172	sub __rev_overlay {
173	my $splitme = shift; # ':' or '.', m'lud?
174	my $parnet = shift;
175	my $val = shift;
176	my $addr = shift;
177
178	my $joinme = $splitme;
179	$splitme = '\.' if $splitme eq '.';
180	my @working = reverse(split($splitme, $parnet->addr)) or warn $!;
181	my @parts = reverse(split($splitme, $val));
182	for (my $i = 0; $i <= $#parts; $i++) {
183	$working[$i] = $parts[$i];
184	}
185	my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return;
186	return unless $checkme->within($parnet);
187	$$addr = $checkme; # force "correct" IP to be recorded.
188	return 1;
189	}
190
191	my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
192	my $parnet = NetAddr::IP->new($parstr);
193
194	# Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
195	return if $parnet->addr =~ /\./ && $val =~ /:/;
196	return if $parnet->addr =~ /:/ && $val =~ /\./;
197
198	# Arguably this is incorrect, but...
199	if ($val =~ /^::/) {
200	$val =~ s/^:+//; # gotta strip'em all...
201	return __rev_overlay(':', $parnet, $val, $addr);
202	}
203	if ($val =~ /^\./) {
204	$val =~ s/^\.+//;
205	return __rev_overlay('.', $parnet, $val, $addr);
206	}
207
208	if ($revrec eq 'y') {
209	if ($$addr && !$$addr->{isv6}) {
210	# argh. 12.1 == 12.0.0.1 (WTF?)
211	# so we do this The Hard Way, because of the stupid
212	if ($val =~ /^(?:\d{1,3}\.){3}\d{1,3}$/) {
213	# we really have a real IP.
214	return $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE revnet >> ?", undef, ($val));
215	} else {
216	return __rev_overlay('.', $parnet, $val, $addr);
217	}
218	} elsif ($$addr && $$addr->{isv6}) {
219	# real v6 address.
220	return $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE revnet >> ?", undef, ($val));
221	} else {
222	# v6 tail
223	return __rev_overlay(':', $parnet, $val, $addr);
224	}
225	# should be impossible to get here...
226	}
227	# ... and here.
228	# can't do nuttin' in forward zones
229	} # end _ipparent()
230
231	##
232	## Initialization and cleanup subs
233	##
234
235
236	## DNSDB::loadConfig()
237	# Load the minimum required initial state (DB connect info) from a config file
238	# Load misc other bits while we're at it.
239	# Takes an optional basename and config path to look for
240	# Populates the %config and %def hashes
241	sub loadConfig {
242	my $basename = shift \|\| ''; # this will work OK
243	##fixme $basename isn't doing what I think I thought I was trying to do.
244
245	my $deferr = ''; # place to put error from default config file in case we can't find either one
246
247	my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
248	$configroot = '' if $basename =~ m\|^/\|;
249	$basename .= ".conf" if $basename !~ /\.conf$/;
250	my $defconfig = "$configroot/dnsdb.conf";
251	my $siteconfig = "$configroot/$basename";
252
253	# System defaults
254	__cfgload("$defconfig") or $deferr = $errstr;
255
256	# Per-site-ish settings.
257	if ($basename ne '.conf') {
258	unless (__cfgload("$siteconfig")) {
259	$errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
260	"Error opening site config file $siteconfig";
261	return;
262	}
263	}
264
265	# Munge log_failures.
266	if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
267	# true/false, on/off, yes/no all valid.
268	if ($config{log_failures} =~ /^(?:true\|false\|on\|off\|yes\|no)$/) {
269	if ($config{log_failures} =~ /(?:true\|on\|yes)/) {
270	$config{log_failures} = 1;
271	} else {
272	$config{log_failures} = 0;
273	}
274	} else {
275	$errstr = "Bad log_failures setting $config{log_failures}";
276	$config{log_failures} = 1;
277	# Bad setting shouldn't be fatal.
278	# return 2;
279	}
280	}
281
282	# All good, clear the error and go home.
283	$errstr = '';
284	return 1;
285	} # end loadConfig()
286
287
288	## DNSDB::__cfgload()
289	# Private sub to parse a config file and load it into %config
290	# Takes a file handle on an open config file
291	sub __cfgload {
292	$errstr = '';
293	my $cfgfile = shift;
294
295	if (open CFG, "<$cfgfile") {
296	while (<CFG>) {
297	chomp;
298	s/^\s*//;
299	next if /^#/;
300	next if /^$/;
301	# hmm. more complex bits in this file might require [heading] headers, maybe?
302	# $mode = $1 if /^\[(a-z)+]/;
303	# DB connect info
304	$config{dbname} = $1 if /^dbname\s=\s([a-z0-9_.-]+)/i;
305	$config{dbuser} = $1 if /^dbuser\s=\s([a-z0-9_.-]+)/i;
306	$config{dbpass} = $1 if /^dbpass\s=\s([a-z0-9_.-]+)/i;
307	$config{dbhost} = $1 if /^dbhost\s=\s([a-z0-9_.-]+)/i;
308	# SOA defaults
309	$def{contact} = $1 if /^contact\s=\s([a-z0-9_.-]+)/i;
310	$def{prins} = $1 if /^prins\s=\s([a-z0-9_.-]+)/i;
311	$def{soattl} = $1 if /^soattl\s=\s(\d+)/i;
312	$def{refresh} = $1 if /^refresh\s=\s(\d+)/i;
313	$def{retry} = $1 if /^retry\s=\s(\d+)/i;
314	$def{expire} = $1 if /^expire\s=\s(\d+)/i;
315	$def{minttl} = $1 if /^minttl\s=\s(\d+)/i;
316	$def{ttl} = $1 if /^ttl\s=\s(\d+)/i;
317	# Mail settings
318	$config{mailhost} = $1 if /^mailhost\s=\s([a-z0-9_.-]+)/i;
319	$config{mailnotify} = $1 if /^mailnotify\s=\s([a-z0-9_.\@-]+)/i;
320	$config{mailsender} = $1 if /^mailsender\s=\s([a-z0-9_.\@-]+)/i;
321	$config{mailname} = $1 if /^mailname\s=\s([a-z0-9\s_.-]+)/i;
322	$config{orgname} = $1 if /^orgname\s=\s([a-z0-9\s_.,'-]+)/i;
323	$config{domain} = $1 if /^domain\s=\s([a-z0-9_.-]+)/i;
324	# session - note this is fed directly to CGI::Session
325	$config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s=\s(\d+[smhdwMy]?)/;
326	$config{sessiondir} = $1 if m{^sessiondir\s=\s([a-z0-9/_.-]+)}i;
327	# misc
328	$config{log_failures} = $1 if /^log_failures\s=\s([a-z01]+)/i;
329	$config{perpage} = $1 if /^perpage\s=\s(\d+)/i;
330	}
331	close CFG;
332	} else {
333	$errstr = $!;
334	return;
335	}
336	return 1;
337	} # end __cfgload()
338
339
340	## DNSDB::connectDB()
341	# Creates connection to DNS database.
342	# Requires the database name, username, and password.
343	# Returns a handle to the db.
344	# Set up for a PostgreSQL db; could be any transactional DBMS with the
345	# right changes.
346	sub connectDB {
347	$errstr = '';
348	my $dbname = shift;
349	my $user = shift;
350	my $pass = shift;
351	my $dbh;
352	my $DSN = "DBI:Pg:dbname=$dbname";
353
354	my $host = shift;
355	$DSN .= ";host=$host" if $host;
356
357	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
358	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
359	$dbh = DBI->connect($DSN, $user, $pass, {
360	AutoCommit => 1,
361	PrintError => 0
362	})
363	or return (undef, $DBI::errstr) if(!$dbh);
364
365	##fixme: initialize the DB if we can't find the table (since, by definition, there's
366	# nothing there if we can't select from it...)
367	my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
368	my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
369	return (undef,$DBI::errstr) if $dbh->err;
370
371	#if ($tblcount == 0) {
372	# # create tables one at a time, checking for each.
373	# return (undef, "check table misc missing");
374	#}
375
376
377	# Return here if we can't select.
378	# This should retrieve the dbversion key.
379	my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
380	$sth->execute();
381	return (undef,$DBI::errstr) if ($sth->err);
382
383	##fixme: do stuff to the DB on version mismatch
384	# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
385	# DB should be downward-compatible; column defaults should give sane (if possibly
386	# useless-and-needs-help) values in columns an older software stack doesn't know about.
387
388	# See if the select returned anything (or null data). This should
389	# succeed if the select executed, but...
390	$sth->fetchrow();
391	return (undef,$DBI::errstr) if ($sth->err);
392
393	$sth->finish;
394
395	# If we get here, we should be OK.
396	return ($dbh,"DB connection OK");
397	} # end connectDB
398
399
400	## DNSDB::finish()
401	# Cleans up after database handles and so on.
402	# Requires a database handle
403	sub finish {
404	my $dbh = $_[0];
405	$dbh->disconnect;
406	} # end finish
407
408
409	## DNSDB::initGlobals()
410	# Initialize global variables
411	# NB: this does NOT include web-specific session variables!
412	# Requires a database handle
413	sub initGlobals {
414	my $dbh = shift;
415
416	# load record types from database
417	my $sth = $dbh->prepare("select val,name from rectypes");
418	$sth->execute;
419	while (my ($recval,$recname) = $sth->fetchrow_array()) {
420	$typemap{$recval} = $recname;
421	$reverse_typemap{$recname} = $recval;
422	}
423	} # end initGlobals
424
425
426	## DNSDB::initPermissions()
427	# Set up permissions global
428	# Takes database handle and UID
429	sub initPermissions {
430	my $dbh = shift;
431	my $uid = shift;
432
433	# %permissions = $(getPermissions($dbh,'user',$uid));
434	getPermissions($dbh, 'user', $uid, \%permissions);
435
436	} # end initPermissions()
437
438
439	## DNSDB::getPermissions()
440	# Get permissions from DB
441	# Requires DB handle, group or user flag, ID, and hashref.
442	sub getPermissions {
443	my $dbh = shift;
444	my $type = shift;
445	my $id = shift;
446	my $hash = shift;
447
448	my $sql = qq(
449	SELECT
450	p.admin,p.self_edit,
451	p.group_create,p.group_edit,p.group_delete,
452	p.user_create,p.user_edit,p.user_delete,
453	p.domain_create,p.domain_edit,p.domain_delete,
454	p.record_create,p.record_edit,p.record_delete
455	FROM permissions p
456	);
457	if ($type eq 'group') {
458	$sql .= qq(
459	JOIN groups g ON g.permission_id=p.permission_id
460	WHERE g.group_id=?
461	);
462	} else {
463	$sql .= qq(
464	JOIN users u ON u.permission_id=p.permission_id
465	WHERE u.user_id=?
466	);
467	}
468
469	my $sth = $dbh->prepare($sql);
470
471	$sth->execute($id) or die "argh: ".$sth->errstr;
472
473	# my $permref = $sth->fetchrow_hashref;
474	# return $permref;
475	# $hash = $permref;
476	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
477	($hash->{admin},$hash->{self_edit},
478	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
479	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
480	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
481	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
482	= $sth->fetchrow_array;
483
484	} # end getPermissions()
485
486
487	## DNSDB::changePermissions()
488	# Update an ACL entry
489	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
490	sub changePermissions {
491	my $dbh = shift;
492	my $type = shift;
493	my $id = shift;
494	my $newperms = shift;
495	my $inherit = shift \|\| 0;
496
497	my $failmsg = '';
498
499	# see if we're switching from inherited to custom. for bonus points,
500	# snag the permid and parent permid anyway, since we'll need the permid
501	# to set/alter custom perms, and both if we're switching from custom to
502	# inherited.
503	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
504	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
505	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
506	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
507	$sth->execute($id);
508
509	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
510
511	# hack phtoui
512	# group id 1 is "special" in that it's it's own parent (err... possibly.)
513	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
514	$wasinherited = 0 if ($type eq 'group' && $id == 1);
515
516	local $dbh->{AutoCommit} = 0;
517	local $dbh->{RaiseError} = 1;
518
519	# Wrap all the SQL in a transaction
520	eval {
521	if ($inherit) {
522
523	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
524	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
525	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
526
527	} else {
528
529	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
530	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
531	# ... if'n'when we have groups with fully inherited permissions.
532	# SQL is coo
533	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
534	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
535	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
536	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
537	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
538	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
539	}
540
541	# and now set the permissions we were passed
542	foreach (@permtypes) {
543	if (defined ($newperms->{$_})) {
544	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
545	}
546	}
547
548	} # (inherited->)? custom
549
550	$dbh->commit;
551	}; # end eval
552	if ($@) {
553	my $msg = $@;
554	eval { $dbh->rollback; };
555	return ('FAIL',"$failmsg: $msg ($permid)");
556	} else {
557	return ('OK',$permid);
558	}
559
560	} # end changePermissions()
561
562
563	## DNSDB::comparePermissions()
564	# Compare two permission hashes
565	# Returns '>', '<', '=', '!'
566	sub comparePermissions {
567	my $p1 = shift;
568	my $p2 = shift;
569
570	my $retval = '='; # assume equality until proven otherwise
571
572	no warnings "uninitialized";
573
574	foreach (@permtypes) {
575	next if $p1->{$_} == $p2->{$_}; # equal is good
576	if ($p1->{$_} && !$p2->{$_}) {
577	if ($retval eq '<') { # if we've already found an unequal pair where
578	$retval = '!'; # $p2 has more access, and we now find a pair
579	last; # where $p1 has more access, the overall access
580	} # is neither greater or lesser, it's unequal.
581	$retval = '>';
582	}
583	if (!$p1->{$_} && $p2->{$_}) {
584	if ($retval eq '>') { # if we've already found an unequal pair where
585	$retval = '!'; # $p1 has more access, and we now find a pair
586	last; # where $p2 has more access, the overall access
587	} # is neither greater or lesser, it's unequal.
588	$retval = '<';
589	}
590	}
591	return $retval;
592	} # end comparePermissions()
593
594
595	## DNSDB::changeGroup()
596	# Change group ID of an entity
597	# Takes a database handle, entity type, entity ID, and new group ID
598	sub changeGroup {
599	my $dbh = shift;
600	my $type = shift;
601	my $id = shift;
602	my $newgrp = shift;
603
604	##fixme: fail on not enough args
605	#return ('FAIL', "Missing
606
607	if ($type eq 'domain') {
608	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
609	or return ('FAIL','Group change failed: '.$dbh->errstr);
610	} elsif ($type eq 'user') {
611	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
612	or return ('FAIL','Group change failed: '.$dbh->errstr);
613	} elsif ($type eq 'group') {
614	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
615	or return ('FAIL','Group change failed: '.$dbh->errstr);
616	}
617	return ('OK','OK');
618	} # end changeGroup()
619
620
621	## DNSDB::_log()
622	# Log an action
623	# Internal sub
624	# Takes a database handle, domain_id, user_id, group_id, email, name and log entry
625	##fixme: convert to trailing hash for user info
626	# User info must contain a (user ID OR username)+fullname
627	sub _log {
628	my $dbh = shift;
629	my ($domain_id,$user_id,$group_id,$username,$name,$entry) = @_;
630
631	##fixme: need better way(s?) to snag userinfo for log entries. don't want to have
632	# to pass around yet another constant (already passing $dbh, shouldn't need to)
633	my $fullname;
634	if (!$user_id) {
635	($user_id, $fullname) = $dbh->selectrow_array("SELECT user_id, firstname \|\| ' ' \|\| lastname FROM users".
636	" WHERE username=?", undef, ($username));
637	} elsif (!$username) {
638	($username, $fullname) = $dbh->selectrow_array("SELECT username, firstname \|\| ' ' \|\| lastname FROM users".
639	" WHERE user_id=?", undef, ($user_id));
640	} else {
641	($fullname) = $dbh->selectrow_array("SELECT firstname \|\| ' ' \|\| lastname FROM users".
642	" WHERE user_id=?", undef, ($user_id));
643	}
644
645	$name = $fullname if !$name;
646
647	##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
648	$dbh->do("INSERT INTO log (domain_id,user_id,group_id,email,name,entry) VALUES (?,?,?,?,?,?)", undef,
649	($domain_id,$user_id,$group_id,$username,$name,$entry));
650	# 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
651	# 1 2 3 4 5 6 7
652	} # end _log
653
654
655	##
656	## Processing subs
657	##
658
659	## DNSDB::addDomain()
660	# Add a domain
661	# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
662	# and user info hash (for logging).
663	# Returns a status code and message
664	sub addDomain {
665	$errstr = '';
666	my $dbh = shift;
667	return ('FAIL',"Need database handle") if !$dbh;
668	my $domain = shift;
669	return ('FAIL',"Domain must not be blank") if !$domain;
670	my $group = shift;
671	return ('FAIL',"Need group") if !defined($group);
672	my $state = shift;
673	return ('FAIL',"Need domain status") if !defined($state);
674
675	my %userinfo = @_; # remaining bits.
676	# user ID, username, user full name
677
678	$state = 1 if $state =~ /^active$/;
679	$state = 1 if $state =~ /^on$/;
680	$state = 0 if $state =~ /^inactive$/;
681	$state = 0 if $state =~ /^off$/;
682
683	return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
684
685	return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
686
687	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
688	my $dom_id;
689
690	# quick check to start to see if we've already got one
691	$sth->execute($domain);
692	($dom_id) = $sth->fetchrow_array;
693
694	return ('FAIL', "Domain already exists") if $dom_id;
695
696	# Allow transactions, and raise an exception on errors so we can catch it later.
697	# Use local to make sure these get "reset" properly on exiting this block
698	local $dbh->{AutoCommit} = 0;
699	local $dbh->{RaiseError} = 1;
700
701	# Wrap all the SQL in a transaction
702	eval {
703	# insert the domain...
704	$dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
705
706	# get the ID...
707	($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
708
709	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
710	"Added ".($state ? 'active' : 'inactive')." domain $domain");
711
712	# ... and now we construct the standard records from the default set. NB: group should be variable.
713	my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
714	my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
715	" VALUES ($dom_id,?,?,?,?,?,?,?)");
716	$sth->execute($group);
717	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
718	$host =~ s/DOMAIN/$domain/g;
719	$val =~ s/DOMAIN/$domain/g;
720	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
721	if ($typemap{$type} eq 'SOA') {
722	my @tmp1 = split /:/, $host;
723	my @tmp2 = split /:/, $val;
724	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
725	"[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
726	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
727	} else {
728	my $logentry = "[new $domain] Added record '$host $typemap{$type}";
729	$logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
730	$logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
731	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
732	$logentry." $val', TTL $ttl");
733	}
734	}
735
736	# once we get here, we should have suceeded.
737	$dbh->commit;
738	}; # end eval
739
740	if ($@) {
741	my $msg = $@;
742	eval { $dbh->rollback; };
743	return ('FAIL',$msg);
744	} else {
745	return ('OK',$dom_id);
746	}
747	} # end addDomain
748
749
750	## DNSDB::delDomain()
751	# Delete a domain.
752	# for now, just delete the records, then the domain.
753	# later we may want to archive it in some way instead (status code 2, for example?)
754	sub delDomain {
755	my $dbh = shift;
756	my $domid = shift;
757
758	# Allow transactions, and raise an exception on errors so we can catch it later.
759	# Use local to make sure these get "reset" properly on exiting this block
760	local $dbh->{AutoCommit} = 0;
761	local $dbh->{RaiseError} = 1;
762
763	my $failmsg = '';
764
765	# Wrap all the SQL in a transaction
766	eval {
767	my $sth = $dbh->prepare("delete from records where domain_id=?");
768	$failmsg = "Failure removing domain records";
769	$sth->execute($domid);
770	$sth = $dbh->prepare("delete from domains where domain_id=?");
771	$failmsg = "Failure removing domain";
772	$sth->execute($domid);
773
774	# once we get here, we should have suceeded.
775	$dbh->commit;
776	}; # end eval
777
778	if ($@) {
779	my $msg = $@;
780	eval { $dbh->rollback; };
781	return ('FAIL',"$failmsg: $msg");
782	} else {
783	return ('OK','OK');
784	}
785
786	} # end delDomain()
787
788
789	## DNSDB::domainName()
790	# Return the domain name based on a domain ID
791	# Takes a database handle and the domain ID
792	# Returns the domain name or undef on failure
793	sub domainName {
794	$errstr = '';
795	my $dbh = shift;
796	my $domid = shift;
797	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
798	$errstr = $DBI::errstr if !$domname;
799	return $domname if $domname;
800	} # end domainName()
801
802
803	## DNSDB::revName()
804	# Return the reverse zone name based on an rDNS ID
805	# Takes a database handle and the rDNS ID
806	# Returns the reverse zone name or undef on failure
807	sub revName {
808	$errstr = '';
809	my $dbh = shift;
810	my $revid = shift;
811	my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
812	$errstr = $DBI::errstr if !$revname;
813	return $revname if $revname;
814	} # end revName()
815
816
817	## DNSDB::domainID()
818	# Takes a database handle and domain name
819	# Returns the domain ID number
820	sub domainID {
821	$errstr = '';
822	my $dbh = shift;
823	my $domain = shift;
824	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
825	$errstr = $DBI::errstr if !$domid;
826	return $domid if $domid;
827	} # end domainID()
828
829
830	## DNSDB::addGroup()
831	# Add a group
832	# Takes a database handle, group name, parent group, hashref for permissions,
833	# and optional template-vs-cloneme flag
834	# Returns a status code and message
835	sub addGroup {
836	$errstr = '';
837	my $dbh = shift;
838	my $groupname = shift;
839	my $pargroup = shift;
840	my $permissions = shift;
841
842	# 0 indicates "custom", hardcoded.
843	# Any other value clones that group's default records, if it exists.
844	my $inherit = shift \|\| 0;
845	##fixme: need a flag to indicate clone records or <?> ?
846
847	# Allow transactions, and raise an exception on errors so we can catch it later.
848	# Use local to make sure these get "reset" properly on exiting this block
849	local $dbh->{AutoCommit} = 0;
850	local $dbh->{RaiseError} = 1;
851
852	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
853	my $group_id;
854
855	# quick check to start to see if we've already got one
856	$sth->execute($groupname);
857	($group_id) = $sth->fetchrow_array;
858
859	return ('FAIL', "Group already exists") if $group_id;
860
861	# Wrap all the SQL in a transaction
862	eval {
863	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
864	$sth->execute($pargroup,$groupname);
865
866	$sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
867	$sth->execute($groupname);
868	my ($groupid) = $sth->fetchrow_array();
869
870	# Permissions
871	if ($inherit) {
872	} else {
873	my @permvals;
874	foreach (@permtypes) {
875	if (!defined ($permissions->{$_})) {
876	push @permvals, 0;
877	} else {
878	push @permvals, $permissions->{$_};
879	}
880	}
881
882	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
883	$sth->execute($groupid,@permvals);
884
885	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
886	$sth->execute($groupid);
887	my ($permid) = $sth->fetchrow_array();
888
889	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
890	} # done permission fiddling
891
892	# Default records
893	$sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
894	"VALUES ($groupid,?,?,?,?,?,?,?)");
895	if ($inherit) {
896	# Duplicate records from parent. Actually relying on inherited records feels
897	# very fragile, and it would be problematic to roll over at a later time.
898	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
899	$sth2->execute($pargroup);
900	while (my @clonedata = $sth2->fetchrow_array) {
901	$sth->execute(@clonedata);
902	}
903	} else {
904	##fixme: Hardcoding is Bad, mmmmkaaaay?
905	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
906	# could load from a config file, but somewhere along the line we need hardcoded bits.
907	$sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
908	$sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
909	$sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
910	$sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
911	$sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
912	$sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
913	}
914
915	# once we get here, we should have suceeded.
916	$dbh->commit;
917	}; # end eval
918
919	if ($@) {
920	my $msg = $@;
921	eval { $dbh->rollback; };
922	return ('FAIL',$msg);
923	} else {
924	return ('OK','OK');
925	}
926
927	} # end addGroup()
928
929
930	## DNSDB::delGroup()
931	# Delete a group.
932	# Takes a group ID
933	# Returns a status code and message
934	sub delGroup {
935	my $dbh = shift;
936	my $groupid = shift;
937
938	# Allow transactions, and raise an exception on errors so we can catch it later.
939	# Use local to make sure these get "reset" properly on exiting this block
940	local $dbh->{AutoCommit} = 0;
941	local $dbh->{RaiseError} = 1;
942
943	##fixme: locate "knowable" error conditions and deal with them before the eval
944	# ... or inside, whatever.
945	# -> domains still exist in group
946	# -> ...
947	my $failmsg = '';
948
949	# Wrap all the SQL in a transaction
950	eval {
951	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
952	$sth->execute($groupid);
953	my ($domcnt) = $sth->fetchrow_array;
954	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
955	die "$domcnt domains still in group\n" if $domcnt;
956
957	$sth = $dbh->prepare("delete from default_records where group_id=?");
958	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
959	$sth->execute($groupid);
960	$sth = $dbh->prepare("delete from groups where group_id=?");
961	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
962	$sth->execute($groupid);
963
964	# once we get here, we should have suceeded.
965	$dbh->commit;
966	}; # end eval
967
968	if ($@) {
969	my $msg = $@;
970	eval { $dbh->rollback; };
971	return ('FAIL',"$failmsg: $msg");
972	} else {
973	return ('OK','OK');
974	}
975	} # end delGroup()
976
977
978	## DNSDB::getChildren()
979	# Get a list of all groups whose parent^n is group <n>
980	# Takes a database handle, group ID, reference to an array to put the group IDs in,
981	# and an optional flag to return only immediate children or all children-of-children
982	# default to returning all children
983	# Calls itself
984	sub getChildren {
985	$errstr = '';
986	my $dbh = shift;
987	my $rootgroup = shift;
988	my $groupdest = shift;
989	my $immed = shift \|\| 'all';
990
991	# special break for default group; otherwise we get stuck.
992	if ($rootgroup == 1) {
993	# by definition, group 1 is the Root Of All Groups
994	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
995	($immed ne 'all' ? " AND parent_group_id=1" : ''));
996	$sth->execute;
997	while (my @this = $sth->fetchrow_array) {
998	push @$groupdest, @this;
999	}
1000	} else {
1001	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
1002	$sth->execute($rootgroup);
1003	return if $sth->rows == 0;
1004	my @grouplist;
1005	while (my ($group) = $sth->fetchrow_array) {
1006	push @$groupdest, $group;
1007	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
1008	}
1009	}
1010	} # end getChildren()
1011
1012
1013	## DNSDB::groupName()
1014	# Return the group name based on a group ID
1015	# Takes a database handle and the group ID
1016	# Returns the group name or undef on failure
1017	sub groupName {
1018	$errstr = '';
1019	my $dbh = shift;
1020	my $groupid = shift;
1021	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
1022	$sth->execute($groupid);
1023	my ($groupname) = $sth->fetchrow_array();
1024	$errstr = $DBI::errstr if !$groupname;
1025	return $groupname if $groupname;
1026	} # end groupName
1027
1028
1029	## DNSDB::groupID()
1030	# Return the group ID based on the group name
1031	# Takes a database handle and the group name
1032	# Returns the group ID or undef on failure
1033	sub groupID {
1034	$errstr = '';
1035	my $dbh = shift;
1036	my $group = shift;
1037	my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
1038	$errstr = $DBI::errstr if !$grpid;
1039	return $grpid if $grpid;
1040	} # end groupID()
1041
1042
1043	## DNSDB::addUser()
1044	# Add a user.
1045	# Takes a DB handle, username, group ID, password, state (active/inactive).
1046	# Optionally accepts:
1047	# user type (user/admin) - defaults to user
1048	# permissions string - defaults to inherit from group
1049	# three valid forms:
1050	# i - Inherit permissions
1051	# c:<user_id> - Clone permissions from <user_id>
1052	# C:<permission list> - Set these specific permissions
1053	# first name - defaults to username
1054	# last name - defaults to blank
1055	# phone - defaults to blank (could put other data within column def)
1056	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
1057	sub addUser {
1058	$errstr = '';
1059	my $dbh = shift;
1060	my $username = shift;
1061	my $group = shift;
1062	my $pass = shift;
1063	my $state = shift;
1064
1065	return ('FAIL', "Missing one or more required entries") if !defined($state);
1066	return ('FAIL', "Username must not be blank") if !$username;
1067
1068	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
1069
1070	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
1071
1072	my $fname = shift \|\| $username;
1073	my $lname = shift \|\| '';
1074	my $phone = shift \|\| ''; # not going format-check
1075
1076	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
1077	my $user_id;
1078
1079	# quick check to start to see if we've already got one
1080	$sth->execute($username);
1081	($user_id) = $sth->fetchrow_array;
1082
1083	return ('FAIL', "User already exists") if $user_id;
1084
1085	# Allow transactions, and raise an exception on errors so we can catch it later.
1086	# Use local to make sure these get "reset" properly on exiting this block
1087	local $dbh->{AutoCommit} = 0;
1088	local $dbh->{RaiseError} = 1;
1089
1090	my $failmsg = '';
1091
1092	# Wrap all the SQL in a transaction
1093	eval {
1094	# insert the user... note we set inherited perms by default since
1095	# it's simple and cleans up some other bits of state
1096	my $sth = $dbh->prepare("INSERT INTO users ".
1097	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
1098	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
1099	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
1100
1101	# get the ID...
1102	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
1103
1104	# Permissions! Gotta set'em all!
1105	die "Invalid permission string $permstring"
1106	if $permstring !~ /^(?:
1107	i # inherit
1108	\|c:\d+ # clone
1109	# custom. no, the leading , is not a typo
1110	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
1111	)$/x;
1112	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
1113	if ($permstring ne 'i') {
1114	# for cloned or custom permissions, we have to create a new permissions entry.
1115	my $clonesrc = $group;
1116	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
1117	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
1118	"SELECT $permlist,? FROM permissions WHERE permission_id=".
1119	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
1120	undef, ($user_id,$clonesrc) );
1121	$dbh->do("UPDATE users SET permission_id=".
1122	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
1123	"WHERE user_id=?", undef, ($user_id, $user_id) );
1124	}
1125	if ($permstring =~ /^C:/) {
1126	# finally for custom permissions, we set the passed-in permissions (and unset
1127	# any that might have been brought in by the clone operation above)
1128	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
1129	undef, ($user_id) );
1130	foreach (@permtypes) {
1131	if ($permstring =~ /,$_/) {
1132	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
1133	} else {
1134	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
1135	}
1136	}
1137	}
1138
1139	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
1140
1141	##fixme: add another table to hold name/email for log table?
1142
1143	# once we get here, we should have suceeded.
1144	$dbh->commit;
1145	}; # end eval
1146
1147	if ($@) {
1148	my $msg = $@;
1149	eval { $dbh->rollback; };
1150	return ('FAIL',$msg." $failmsg");
1151	} else {
1152	return ('OK',$user_id);
1153	}
1154	} # end addUser
1155
1156
1157	## DNSDB::checkUser()
1158	# Check user/pass combo on login
1159	sub checkUser {
1160	my $dbh = shift;
1161	my $user = shift;
1162	my $inpass = shift;
1163
1164	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
1165	$sth->execute($user);
1166	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
1167	my $loginfailed = 1 if !defined($uid);
1168
1169	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
1170	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
1171	} else {
1172	$loginfailed = 1 if $pass ne $inpass;
1173	}
1174
1175	# nnnngggg
1176	return ($uid, $gid);
1177	} # end checkUser
1178
1179
1180	## DNSDB:: updateUser()
1181	# Update general data about user
1182	sub updateUser {
1183	my $dbh = shift;
1184
1185	##fixme: tweak calling convention so that we can update any given bit of data
1186	my $uid = shift;
1187	my $username = shift;
1188	my $group = shift;
1189	my $pass = shift;
1190	my $state = shift;
1191	my $type = shift \|\| 'u';
1192	my $fname = shift \|\| $username;
1193	my $lname = shift \|\| '';
1194	my $phone = shift \|\| ''; # not going format-check
1195
1196	my $failmsg = '';
1197
1198	# Allow transactions, and raise an exception on errors so we can catch it later.
1199	# Use local to make sure these get "reset" properly on exiting this block
1200	local $dbh->{AutoCommit} = 0;
1201	local $dbh->{RaiseError} = 1;
1202
1203	my $sth;
1204
1205	# Password can be left blank; if so we assume there's one on file.
1206	# Actual blank passwords are bad, mm'kay?
1207	if (!$pass) {
1208	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
1209	$sth->execute($uid);
1210	($pass) = $sth->fetchrow_array;
1211	} else {
1212	$pass = unix_md5_crypt($pass);
1213	}
1214
1215	eval {
1216	my $sth = $dbh->prepare(q(
1217	UPDATE users
1218	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
1219	WHERE user_id=?
1220	)
1221	);
1222	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
1223	$dbh->commit;
1224	};
1225	if ($@) {
1226	my $msg = $@;
1227	eval { $dbh->rollback; };
1228	return ('FAIL',"$failmsg: $msg");
1229	} else {
1230	return ('OK','OK');
1231	}
1232	} # end updateUser()
1233
1234
1235	## DNSDB::delUser()
1236	#
1237	sub delUser {
1238	my $dbh = shift;
1239	return ('FAIL',"Need database handle") if !$dbh;
1240	my $userid = shift;
1241	return ('FAIL',"Missing userid") if !defined($userid);
1242
1243	my $sth = $dbh->prepare("delete from users where user_id=?");
1244	$sth->execute($userid);
1245
1246	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
1247
1248	return ('OK','OK');
1249
1250	} # end delUser
1251
1252
1253	## DNSDB::userFullName()
1254	# Return a pretty string!
1255	# Takes a user_id and optional printf-ish string to indicate which pieces where:
1256	# %u for the username
1257	# %f for the first name
1258	# %l for the last name
1259	# All other text in the passed string will be left as-is.
1260	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
1261	sub userFullName {
1262	$errstr = '';
1263	my $dbh = shift;
1264	my $userid = shift;
1265	my $fullformat = shift \|\| '%f %l (%u)';
1266	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
1267	$sth->execute($userid);
1268	my ($uname,$fname,$lname) = $sth->fetchrow_array();
1269	$errstr = $DBI::errstr if !$uname;
1270
1271	$fullformat =~ s/\%u/$uname/g;
1272	$fullformat =~ s/\%f/$fname/g;
1273	$fullformat =~ s/\%l/$lname/g;
1274
1275	return $fullformat;
1276	} # end userFullName
1277
1278
1279	## DNSDB::userStatus()
1280	# Sets and/or returns a user's status
1281	# Takes a database handle, user ID and optionally a status argument
1282	# Returns undef on errors.
1283	sub userStatus {
1284	my $dbh = shift;
1285	my $id = shift;
1286	my $newstatus = shift;
1287
1288	return undef if $id !~ /^\d+$/;
1289
1290	my $sth;
1291
1292	# ooo, fun! let's see what we were passed for status
1293	if ($newstatus) {
1294	$sth = $dbh->prepare("update users set status=? where user_id=?");
1295	# ass-u-me caller knows what's going on in full
1296	if ($newstatus =~ /^[01]$/) { # only two valid for now.
1297	$sth->execute($newstatus,$id);
1298	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
1299	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
1300	}
1301	}
1302
1303	$sth = $dbh->prepare("select status from users where user_id=?");
1304	$sth->execute($id);
1305	my ($status) = $sth->fetchrow_array;
1306	return $status;
1307	} # end userStatus()
1308
1309
1310	## DNSDB::getUserData()
1311	# Get misc user data for display
1312	sub getUserData {
1313	my $dbh = shift;
1314	my $uid = shift;
1315
1316	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
1317	"FROM users WHERE user_id=?");
1318	$sth->execute($uid);
1319	return $sth->fetchrow_hashref();
1320
1321	} # end getUserData()
1322
1323
1324	## DNSDB::getSOA()
1325	# Return all suitable fields from an SOA record in separate elements of a hash
1326	# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
1327	sub getSOA {
1328	$errstr = '';
1329	my $dbh = shift;
1330	my $def = shift;
1331	my $rev = shift;
1332	my $id = shift;
1333	my %ret;
1334
1335	# (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
1336	# - should really attach serial to the zone parent somewhere
1337
1338	my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
1339	" WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
1340
1341	my $sth = $dbh->prepare($sql);
1342	$sth->execute($id);
1343
1344	my ($recid,$host,$val,$ttl) = $sth->fetchrow_array() or return;
1345	my ($contact,$prins) = split /:/, $host;
1346	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
1347
1348	$ret{recid} = $recid;
1349	$ret{ttl} = $ttl;
1350	# $ret{serial} = $serial; # ca't use distance for serial with default_rev_records
1351	$ret{prins} = $prins;
1352	$ret{contact} = $contact;
1353	$ret{refresh} = $refresh;
1354	$ret{retry} = $retry;
1355	$ret{expire} = $expire;
1356	$ret{minttl} = $minttl;
1357
1358	return %ret;
1359	} # end getSOA()
1360
1361
1362	## DNSDB::getRecLine()
1363	# Return all data fields for a zone record in separate elements of a hash
1364	# Takes a database handle, default/live flag, and record ID
1365	sub getRecLine {
1366	$errstr = '';
1367	my $dbh = shift;
1368	my $def = shift;
1369	my $id = shift;
1370
1371	my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl".
1372	(($def eq 'def' or $def eq 'y') ? ',group_id FROM default_' : ',domain_id FROM ').
1373	"records WHERE record_id=?";
1374	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
1375
1376	if ($dbh->err) {
1377	$errstr = $DBI::errstr;
1378	return undef;
1379	}
1380
1381	if (!$ret) {
1382	$errstr = "No such record";
1383	return undef;
1384	}
1385
1386	$ret->{parid} = (($def eq 'def' or $def eq 'y') ? $ret->{group_id} : $ret->{domain_id});
1387
1388	return $ret;
1389	}
1390
1391
1392	##fixme: should use above (getRecLine()) to get lines for below?
1393	## DNSDB::getDomRecs()
1394	# Return records for a domain
1395	# Takes a database handle, default/live flag, group/domain ID, start,
1396	# number of records, sort field, and sort order
1397	# Returns a reference to an array of hashes
1398	sub getDomRecs {
1399	$errstr = '';
1400	my $dbh = shift;
1401	my $def = shift;
1402	my $rev = shift;
1403	my $id = shift;
1404	my $nrecs = shift \|\| 'all';
1405	my $nstart = shift \|\| 0;
1406
1407	## for order, need to map input to column names
1408	my $order = shift \|\| 'host';
1409	my $direction = shift \|\| 'ASC';
1410
1411	my $filter = shift \|\| '';
1412
1413	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
1414	$sql .= ",r.distance,r.weight,r.port" if $rev eq 'n';
1415	$sql .= " FROM "._rectable($def,$rev)." r ";
1416	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
1417	$sql .= "WHERE "._recparent($def,$rev)." = ?";
1418	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
1419	$sql .= " AND host ~* ?" if $filter;
1420	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
1421	$sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
1422
1423	my @bindvars = ($id);
1424	push @bindvars, $filter if $filter;
1425
1426	# just to be ultraparanoid about SQL injection vectors
1427	if ($nstart ne 'all') {
1428	$sql .= " LIMIT ? OFFSET ?";
1429	push @bindvars, $nrecs;
1430	push @bindvars, ($nstart*$nrecs);
1431	}
1432	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
1433	$sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
1434
1435	my @retbase;
1436	while (my $ref = $sth->fetchrow_hashref()) {
1437	push @retbase, $ref;
1438	}
1439
1440	my $ret = \@retbase;
1441	return $ret;
1442	} # end getDomRecs()
1443
1444
1445	## DNSDB::getRecCount()
1446	# Return count of non-SOA records in zone (or default records in a group)
1447	# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
1448	# and optional filtering modifier
1449	# Returns the count
1450	sub getRecCount {
1451	my $dbh = shift;
1452	my $defrec = shift;
1453	my $revrec = shift;
1454	my $id = shift;
1455	my $filter = shift \|\| '';
1456
1457	# keep the nasties down, since we can't ?-sub this bit. :/
1458	# note this is chars allowed in DNS hostnames
1459	$filter =~ s/[^a-zA-Z0-9_.:-]//g;
1460
1461	my @bindvars = ($id);
1462	push @bindvars, $filter if $filter;
1463	my $sql = "SELECT count(*) FROM ".
1464	_rectable($defrec,$revrec).
1465	" WHERE "._recparent($defrec,$revrec)."=? ".
1466	"AND NOT type=$reverse_typemap{SOA}".
1467	($filter ? " AND host ~* ?" : '');
1468	my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
1469
1470	return $count;
1471
1472	} # end getRecCount()
1473
1474
1475	## DNSDB::addRec()
1476	# Add a new record to a domain or a group's default records
1477	# Takes a database handle, default/live flag, group/domain ID,
1478	# host, type, value, and TTL
1479	# Some types require additional detail: "distance" for MX and SRV,
1480	# and weight/port for SRV
1481	# Returns a status code and detail message in case of error
1482	sub addRec {
1483	$errstr = '';
1484	my $dbh = shift;
1485	my $defrec = shift;
1486	my $revrec = shift;
1487	my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
1488	# domain_id for domain records)
1489
1490	my $host = shift;
1491	my $rectype = shift;
1492	my $val = shift;
1493	my $ttl = shift;
1494
1495	# prep for validation
1496	my $addr = NetAddr::IP->new($val);
1497	$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
1498
1499	my $domid = 0;
1500	my $revid = 0;
1501
1502	my $retcode = 'OK'; # assume everything will go OK
1503	my $retmsg = '';
1504
1505	# do simple validation first
1506	return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
1507
1508
1509	## possible contents for record types
1510	# (A/AAAA+)PTR: IP + (FQDN or bare hostname to have ADMINDOMAIN appended?)
1511	# (A/AAAA+)PTR template: IP or netblock + (fully-qualified hostname pattern or bare hostname pattern to have
1512	# ADMINDOMAIN appended?)
1513	# A/AAAA: append parent domain if not included, validate IP
1514	# NS,MX,CNAME,SRV,TXT: append parent domain if not included
1515
1516	# ickypoo. can't see a handy way to really avoid hardcoding these here... otoh, these aren't
1517	# really mutable, it's just handy to have them in a DB table for reordering
1518	# 65280 \| A+PTR
1519	# 65281 \| AAAA+PTR
1520	# 65282 \| PTR template
1521	# 65283 \| A+PTR template
1522	# 65284 \| AAAA+PTR template
1523
1524	# can only validate parenthood on IPs in live zones; group default records are likely to contain "ZONE"
1525	if ($revrec eq 'y' && $defrec eq 'n') {
1526	if ($rectype == $reverse_typemap{PTR} \|\| $rectype == 65280 \|\| $rectype == 65281) {
1527	return ('FAIL', "IP or IP fragment $val is not within ".revName($dbh, $id))
1528	unless _ipparent($dbh, $defrec, $revrec, $val, $id, \$addr);
1529	$revid = $id;
1530	}
1531	if ($rectype == 65280 \|\| $rectype == 65281) {
1532	# check host to see if it's managed here. coerce down to PTR if not.
1533	# Split $host and work our way up the hierarchy until we run out of parts to add, or we find a match
1534	# Note we do not do '$checkdom = shift @hostbits' right away, since we want to be able to support
1535	# private TLDs.
1536	my @hostbits = reverse(split(/\./, $host));
1537	my $checkdom = '';
1538	my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE domain = ? GROUP BY domain_id");
1539	foreach (@hostbits) {
1540	$checkdom = "$_.$checkdom";
1541	$checkdom =~ s/\.$//;
1542	$sth->execute($checkdom);
1543	my ($found, $parid) = $sth->fetchrow_array;
1544	if ($found) {
1545	$domid = $parid;
1546	last;
1547	}
1548	}
1549	if (!$domid) {
1550	# no domain found; set the return code and message, then coerce type down to PTR
1551	$retcode = 'WARN';
1552	$retmsg = "Record added as PTR instead of $typemap{$rectype}; domain not found for $host";
1553	$rectype = $reverse_typemap{PTR};
1554	}
1555	}
1556	# types 65282, 65283, 65284 left
1557	} elsif ($revrec eq 'n' && $defrec eq 'n') {
1558	# Forward zone. Validate IPs where we know they MUST be correct,
1559	# check to see if we manage the reverse zone on A(AAA)+PTR,
1560	# append the domain on hostnames without it.
1561	if ($rectype == $reverse_typemap{A} \|\| $rectype == 65280) {
1562	return ('FAIL',$typemap{$rectype}." record must be a valid IPv4 address")
1563	unless $addr && !$addr->{isv6};
1564	$val = $addr->addr;
1565	}
1566	if ($rectype == $reverse_typemap{AAAA} \|\| $rectype == 65281) {
1567	return ('FAIL',$typemap{$rectype}." record must be a valid IPv6 address")
1568	unless $addr && $addr->{isv6};
1569	$val = $addr->addr;
1570	}
1571	if ($rectype == 65280 \|\| $rectype == 65281) {
1572	# The ORDER BY here makes sure we pick the smallest revzone parent. Just In Case.
1573	($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1574	" ORDER BY masklen(revnet) DESC", undef, ($val));
1575	if (!$revid) {
1576	$retcode = 'WARN';
1577	$retmsg = "Record added as ".($rectype == 65280 ? 'A' : 'AAAA')." instead of $typemap{$rectype}; ".
1578	"reverse zone not found for $val";
1579	$rectype = $reverse_typemap{A} if $rectype == 65280;
1580	$rectype = $reverse_typemap{AAAA} if $rectype == 65281;
1581	$revid = 0; # Just In Case
1582	}
1583	}
1584	my $parstr = domainName($dbh,$id);
1585	$host .= ".$parstr" if $host !~ /$parstr$/;
1586	}
1587
1588	# Validate IPs in MX, NS, SRV records?
1589	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
1590	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
1591	# if ($val =~ /^\s[\da-f:.]+\s$/) {
1592	# return ('FAIL',"$val is not a valid IP address") if !$addr;
1593	# }
1594	# }
1595
1596	# basic fields: immediate parent ID, host, type, val, ttl
1597	my $fields = _recparent($defrec,$revrec).",host,type,val,ttl";
1598	my $vallen = "?,?,?,?,?";
1599	my @vallist = ($id,$host,$rectype,$val,$ttl);
1600
1601	if ($defrec eq 'n' && ($rectype == 65280 \|\| $rectype == 65281)) {
1602	$fields .= ",".($revrec eq 'n' ? 'rdns_id' : 'domain_id');
1603	$vallen .= ",?";
1604	push @vallist, ($revrec eq 'n' ? $revid : $domid);
1605	}
1606
1607	# MX and SRV specials
1608	my $dist;
1609	if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
1610	$dist = shift;
1611	return ('FAIL',"Distance is required for $typemap{$rectype} records") unless defined($dist);
1612	$dist =~ s/\s*//g;
1613	return ('FAIL',"Distance is required, and must be numeric") unless $dist =~ /^\d+$/;
1614	$fields .= ",distance";
1615	$vallen .= ",?";
1616	push @vallist, $dist;
1617	}
1618	my $weight;
1619	my $port;
1620	if ($rectype == $reverse_typemap{SRV}) {
1621	# check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
1622	# it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
1623	return ('FAIL',"SRV records must begin with _service._protocol [$host]")
1624	unless $host =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
1625	$weight = shift;
1626	$port = shift;
1627	return ('FAIL',"Port and weight are required for SRV records") unless defined($weight) && defined($port);
1628	$weight =~ s/\s*//g;
1629	$port =~ s/\s*//g;
1630	return ('FAIL',"Port and weight are required, and must be numeric")
1631	unless $weight =~ /^\d+$/ && $port =~ /^\d+$/;
1632	$fields .= ",weight,port";
1633	$vallen .= ",?,?";
1634	push @vallist, ($weight,$port);
1635	}
1636
1637	# Allow transactions, and raise an exception on errors so we can catch it later.
1638	# Use local to make sure these get "reset" properly on exiting this block
1639	local $dbh->{AutoCommit} = 0;
1640	local $dbh->{RaiseError} = 1;
1641
1642	eval {
1643	$dbh->do("INSERT INTO ".($defrec eq 'y' ? 'default_' : '')."records ($fields) VALUES ($vallen)",
1644	undef, @vallist);
1645	$dbh->commit;
1646	};
1647	if ($@) {
1648	my $msg = $@;
1649	eval { $dbh->rollback; };
1650	return ('FAIL',$msg);
1651	}
1652
1653	return ($retcode, $retmsg);
1654
1655	} # end addRec()
1656
1657
1658	## DNSDB::updateRec()
1659	# Update a record
1660	sub updateRec {
1661	$errstr = '';
1662
1663	my $dbh = shift;
1664	my $defrec = shift;
1665	my $id = shift;
1666
1667	# all records have these
1668	my $host = shift;
1669	my $type = shift;
1670	my $val = shift;
1671	my $ttl = shift;
1672
1673	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
1674
1675	# only MX and SRV will use these
1676	my $dist = 0;
1677	my $weight = 0;
1678	my $port = 0;
1679
1680	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
1681	$dist = shift;
1682	$dist =~ s/\s+//g;
1683	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
1684	return ('FAIL', "Distance must be numeric") unless $dist =~ /^\d+$/;
1685	if ($type == $reverse_typemap{SRV}) {
1686	$weight = shift;
1687	$weight =~ s/\s+//g;
1688	return ('FAIL',"SRV requires weight") if !defined($weight);
1689	return ('FAIL',"Weight must be numeric") unless $weight =~ /^\d+$/;
1690	$port = shift;
1691	$port =~ s/\s+//g;
1692	return ('FAIL',"SRV requires port") if !defined($port);
1693	return ('FAIL',"Port must be numeric") unless $port =~ /^\d+$/;
1694	}
1695	}
1696
1697	# Enforce IP addresses on A and AAAA types
1698	my $addr = NetAddr::IP->new($val);
1699	if ($type == $reverse_typemap{A}) {
1700	return ('FAIL',$typemap{$type}." record must be a valid IPv4 address")
1701	unless $addr && !$addr->{isv6};
1702	}
1703	if ($type == $reverse_typemap{AAAA}) {
1704	return ('FAIL',$typemap{$type}." record must be a valid IPv6 address")
1705	unless $addr && $addr->{isv6};
1706	}
1707
1708	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
1709	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
1710	# if ($val =~ /^\s[\da-f:.]+\s$/) {
1711	# return ('FAIL',"$val is not a valid IP address") if !$addr;
1712	# }
1713	# }
1714
1715	local $dbh->{AutoCommit} = 0;
1716	local $dbh->{RaiseError} = 1;
1717
1718	eval {
1719	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
1720	"SET host=?,val=?,type=?,ttl=?,distance=?,weight=?,port=? ".
1721	"WHERE record_id=?", undef, ($host, $val, $type, $ttl, $dist, $weight, $port, $id) );
1722	$dbh->commit;
1723	};
1724	if ($@) {
1725	my $msg = $@;
1726	$dbh->rollback;
1727	return ('FAIL', $msg);
1728	}
1729
1730	return ('OK','OK');
1731	} # end updateRec()
1732
1733
1734	## DNSDB::delRec()
1735	# Delete a record.
1736	sub delRec {
1737	$errstr = '';
1738	my $dbh = shift;
1739	my $defrec = shift;
1740	my $id = shift;
1741
1742	my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
1743	$sth->execute($id);
1744
1745	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
1746
1747	return ('OK','OK');
1748	} # end delRec()
1749
1750
1751	# Reference hashes.
1752	my %par_tbl = (
1753	group => 'groups',
1754	user => 'users',
1755	defrec => 'default_records',
1756	domain => 'domains',
1757	record => 'records'
1758	);
1759	my %id_col = (
1760	group => 'group_id',
1761	user => 'user_id',
1762	defrec => 'record_id',
1763	domain => 'domain_id',
1764	record => 'record_id'
1765	);
1766	my %par_col = (
1767	group => 'parent_group_id',
1768	user => 'group_id',
1769	defrec => 'group_id',
1770	domain => 'group_id',
1771	record => 'domain_id'
1772	);
1773	my %par_type = (
1774	group => 'group',
1775	user => 'group',
1776	defrec => 'group',
1777	domain => 'group',
1778	record => 'domain'
1779	);
1780
1781
1782	## DNSDB::getTypelist()
1783	# Get a list of record types for various UI dropdowns
1784	# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
1785	# Returns an arrayref to list of hashrefs perfect for HTML::Template
1786	sub getTypelist {
1787	my $dbh = shift;
1788	my $recgroup = shift;
1789	my $type = shift \|\| $reverse_typemap{A};
1790
1791	# also accepting $webvar{revrec}!
1792	$recgroup = 'f' if $recgroup eq 'n';
1793	$recgroup = 'r' if $recgroup eq 'y';
1794
1795	my $sql = "SELECT val,name FROM rectypes WHERE ";
1796	if ($recgroup eq 'r') {
1797	# reverse zone types
1798	$sql .= "stdflag=2 OR stdflag=3";
1799	} elsif ($recgroup eq 'l') {
1800	# DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
1801	$sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
1802	} else {
1803	# default; forward zone types. technically $type eq 'f' but not worth the error message.
1804	$sql .= "stdflag=1 OR stdflag=2";
1805	}
1806	$sql .= " ORDER BY listorder";
1807
1808	my $sth = $dbh->prepare($sql);
1809	$sth->execute;
1810	my @typelist;
1811	while (my ($rval,$rname) = $sth->fetchrow_array()) {
1812	my %row = ( recval => $rval, recname => $rname );
1813	$row{tselect} = 1 if $rval == $type;
1814	push @typelist, \%row;
1815	}
1816
1817	# Add SOA on lookups since it's not listed in other dropdowns.
1818	if ($recgroup eq 'l') {
1819	my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
1820	$row{tselect} = 1 if $reverse_typemap{SOA} == $type;
1821	push @typelist, \%row;
1822	}
1823
1824	return \@typelist;
1825	} # end getTypelist()
1826
1827
1828	## DNSDB::getParents()
1829	# Find out which entities are parent to the requested id
1830	# Returns arrayref containing hash pairs of id/type
1831	sub getParents {
1832	my $dbh = shift;
1833	my $id = shift;
1834	my $type = shift;
1835	my $depth = shift \|\| 'all'; # valid values: 'all', 'immed', <int> (stop at this group ID)
1836
1837	my @parlist;
1838
1839	while (1) {
1840	my $result = $dbh->selectrow_hashref("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
1841	undef, ($id) );
1842	my %tmp = ($result->{$par_col{$type}} => $par_type{$type});
1843	unshift @parlist, \%tmp;
1844	last if $result->{$par_col{$type}} == 1; # group 1 is its own parent
1845	$id = $result->{$par_col{$type}};
1846	$type = $par_type{$type};
1847	}
1848
1849	return \@parlist;
1850
1851	} # end getParents()
1852
1853
1854	## DNSDB::isParent()
1855	# Returns true if $id1 is a parent of $id2, false otherwise
1856	sub isParent {
1857	my $dbh = shift;
1858	my $id1 = shift;
1859	my $type1 = shift;
1860	my $id2 = shift;
1861	my $type2 = shift;
1862	##todo: immediate, secondary, full (default)
1863
1864	# Return false on invalid types
1865	return 0 if !grep /^$type1$/, ('record','defrec','user','domain','group');
1866	return 0 if !grep /^$type2$/, ('record','defrec','user','domain','group');
1867
1868	# Return false on impossible relations
1869	return 0 if $type1 eq 'record'; # nothing may be a child of a record
1870	return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
1871	return 0 if $type1 eq 'user'; # nothing may be child of a user
1872	return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
1873
1874	# ennnhhhh.... if we're passed an id of 0, it will never be found. usual
1875	# case would be the UI creating a new <thing>, and so we don't have an ID for
1876	# <thing> to look up yet. in that case the UI should check the parent as well.
1877	# argument for returning 1 is
1878	return 0 if $id1 == 0; # nothing can have a parent id of 0
1879	return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
1880
1881	# group 1 is the ultimate root parent
1882	return 1 if $type1 eq 'group' && $id1 == 1;
1883
1884	# groups are always (a) parent of themselves
1885	return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
1886
1887	# almost the same loop as getParents() above
1888	my $id = $id2;
1889	my $type = $type2;
1890	my $foundparent = 0;
1891
1892	my $limiter = 0;
1893	while (1) {
1894	my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
1895	my $result = $dbh->selectrow_hashref($sql,
1896	undef, ($id) );
1897	if (!$result) {
1898	$limiter++;
1899	##fixme: how often will this happen on a live site?
1900	warn "no results looking for $sql with id $id (depth $limiter)\n";
1901	last;
1902	}
1903	if ($result && $result->{$par_col{$type}} == $id1) {
1904	$foundparent = 1;
1905	last;
1906	} else {
1907	##fixme: do we care about trying to return a "no such record/domain/user/group" error?
1908	warn $dbh->errstr." $sql, $id" if $dbh->errstr;
1909	}
1910	# group 1 is its own parent. need this here more to break strange loops than for detecting a parent
1911	last if $result->{$par_col{$type}} == 1;
1912	$id = $result->{$par_col{$type}};
1913	$type = $par_type{$type};
1914	}
1915
1916	return $foundparent;
1917	} # end isParent()
1918
1919
1920	## DNSDB::domStatus()
1921	# Sets and/or returns a domain's status
1922	# Takes a database handle, domain ID and optionally a status argument
1923	# Returns undef on errors.
1924	sub domStatus {
1925	my $dbh = shift;
1926	my $id = shift;
1927	my $newstatus = shift;
1928
1929	return undef if $id !~ /^\d+$/;
1930
1931	my $sth;
1932
1933	# ooo, fun! let's see what we were passed for status
1934	if ($newstatus) {
1935	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
1936	# ass-u-me caller knows what's going on in full
1937	if ($newstatus =~ /^[01]$/) { # only two valid for now.
1938	$sth->execute($newstatus,$id);
1939	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
1940	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
1941	}
1942	}
1943
1944	$sth = $dbh->prepare("select status from domains where domain_id=?");
1945	$sth->execute($id);
1946	my ($status) = $sth->fetchrow_array;
1947	return $status;
1948	} # end domStatus()
1949
1950
1951	## DNSDB::importAXFR
1952	# Import a domain via AXFR
1953	# Takes AXFR host, domain to transfer, group to put the domain in,
1954	# and optionally:
1955	# - active/inactive state flag (defaults to active)
1956	# - overwrite-SOA flag (defaults to off)
1957	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
1958	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
1959	# if status is OK, but WARN includes conditions that are not fatal but should
1960	# really be reported.
1961	sub importAXFR {
1962	my $dbh = shift;
1963	my $ifrom_in = shift;
1964	my $domain = shift;
1965	my $group = shift;
1966	my $status = shift \|\| 1;
1967	my $rwsoa = shift \|\| 0;
1968	my $rwns = shift \|\| 0;
1969
1970	##fixme: add mode to delete&replace, merge+overwrite, merge new?
1971
1972	my $nrecs = 0;
1973	my $soaflag = 0;
1974	my $nsflag = 0;
1975	my $warnmsg = '';
1976	my $ifrom;
1977
1978	# choke on possible bad setting in ifrom
1979	# IPv4 and v6, and valid hostnames!
1980	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
1981	return ('FAIL', "Bad AXFR source host $ifrom")
1982	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
1983
1984	# Allow transactions, and raise an exception on errors so we can catch it later.
1985	# Use local to make sure these get "reset" properly on exiting this block
1986	local $dbh->{AutoCommit} = 0;
1987	local $dbh->{RaiseError} = 1;
1988
1989	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
1990	my $dom_id;
1991
1992	# quick check to start to see if we've already got one
1993	$sth->execute($domain);
1994	($dom_id) = $sth->fetchrow_array;
1995
1996	return ('FAIL', "Domain already exists") if $dom_id;
1997
1998	eval {
1999	# can't do this, can't nest transactions. sigh.
2000	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
2001
2002	##fixme: serial
2003	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
2004	$sth->execute($domain,$group,$status);
2005
2006	## bizarre DBI<->Net::DNS interaction bug:
2007	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
2008	## fixed, apparently I was doing something odd, but not certain what it was that
2009	## caused a commit instead of barfing
2010
2011	# get domain id so we can do the records
2012	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
2013	$sth->execute($domain);
2014	($dom_id) = $sth->fetchrow_array();
2015
2016	my $res = Net::DNS::Resolver->new;
2017	$res->nameservers($ifrom);
2018	$res->axfr_start($domain)
2019	or die "Couldn't begin AXFR\n";
2020
2021	while (my $rr = $res->axfr_next()) {
2022	my $type = $rr->type;
2023
2024	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
2025	my $vallen = "?,?,?,?,?";
2026
2027	$soaflag = 1 if $type eq 'SOA';
2028	$nsflag = 1 if $type eq 'NS';
2029
2030	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
2031
2032	# "Primary" types:
2033	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
2034	# maybe KEY
2035
2036	# nasty big ugly case-like thing here, since we have to do some different
2037	# processing depending on the record. le sigh.
2038
2039	##fixme: what record types other than TXT can/will have >255-byte payloads?
2040
2041	if ($type eq 'A') {
2042	push @vallist, $rr->address;
2043	} elsif ($type eq 'NS') {
2044	# hmm. should we warn here if subdomain NS'es are left alone?
2045	next if ($rwns && ($rr->name eq $domain));
2046	push @vallist, $rr->nsdname;
2047	$nsflag = 1;
2048	} elsif ($type eq 'CNAME') {
2049	push @vallist, $rr->cname;
2050	} elsif ($type eq 'SOA') {
2051	next if $rwsoa;
2052	$vallist[1] = $rr->mname.":".$rr->rname;
2053	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
2054	$soaflag = 1;
2055	} elsif ($type eq 'PTR') {
2056	push @vallist, $rr->ptrdname;
2057	# hmm. PTR records should not be in forward zones.
2058	} elsif ($type eq 'MX') {
2059	$sql .= ",distance";
2060	$vallen .= ",?";
2061	push @vallist, $rr->exchange;
2062	push @vallist, $rr->preference;
2063	} elsif ($type eq 'TXT') {
2064	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
2065	## but don't really seem enthusiastic about it.
2066	my $rrdata = $rr->txtdata;
2067	push @vallist, $rrdata;
2068	} elsif ($type eq 'SPF') {
2069	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
2070	my $rrdata = $rr->txtdata;
2071	push @vallist, $rrdata;
2072	} elsif ($type eq 'AAAA') {
2073	push @vallist, $rr->address;
2074	} elsif ($type eq 'SRV') {
2075	$sql .= ",distance,weight,port" if $type eq 'SRV';
2076	$vallen .= ",?,?,?" if $type eq 'SRV';
2077	push @vallist, $rr->target;
2078	push @vallist, $rr->priority;
2079	push @vallist, $rr->weight;
2080	push @vallist, $rr->port;
2081	} elsif ($type eq 'KEY') {
2082	# we don't actually know what to do with these...
2083	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
2084	} else {
2085	my $rrdata = $rr->rdatastr;
2086	push @vallist, $rrdata;
2087	# Finding a different record type is not fatal.... just problematic.
2088	# We may not be able to export it correctly.
2089	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
2090	}
2091
2092	# BIND supports:
2093	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
2094	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
2095	# ... if one can ever find the right magic to format them correctly
2096
2097	# Net::DNS supports:
2098	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
2099	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
2100	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
2101
2102	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
2103	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
2104
2105	$nrecs++;
2106
2107	} # while axfr_next
2108
2109	# Overwrite SOA record
2110	if ($rwsoa) {
2111	$soaflag = 1;
2112	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
2113	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
2114	$sthgetsoa->execute($group,$reverse_typemap{SOA});
2115	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
2116	$host =~ s/DOMAIN/$domain/g;
2117	$val =~ s/DOMAIN/$domain/g;
2118	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
2119	}
2120	}
2121
2122	# Overwrite NS records
2123	if ($rwns) {
2124	$nsflag = 1;
2125	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
2126	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
2127	$sthgetns->execute($group,$reverse_typemap{NS});
2128	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
2129	$host =~ s/DOMAIN/$domain/g;
2130	$val =~ s/DOMAIN/$domain/g;
2131	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
2132	}
2133	}
2134
2135	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
2136	die "Bad zone: No SOA record!\n" if !$soaflag;
2137	die "Bad zone: No NS records!\n" if !$nsflag;
2138
2139	$dbh->commit;
2140
2141	};
2142
2143	if ($@) {
2144	my $msg = $@;
2145	eval { $dbh->rollback; };
2146	return ('FAIL',$msg." $warnmsg");
2147	} else {
2148	return ('WARN', $warnmsg) if $warnmsg;
2149	return ('OK',"Imported OK");
2150	}
2151
2152	# it should be impossible to get here.
2153	return ('WARN',"OOOK!");
2154	} # end importAXFR()
2155
2156
2157	## DNSDB::export()
2158	# Export the DNS database, or a part of it
2159	# Takes database handle, export type, optional arguments depending on type
2160	# Writes zone data to targets as appropriate for type
2161	sub export {
2162	my $dbh = shift;
2163	my $target = shift;
2164
2165	if ($target eq 'tiny') {
2166	__export_tiny($dbh,@_);
2167	}
2168	# elsif ($target eq 'foo') {
2169	# __export_foo($dbh,@_);
2170	#}
2171	# etc
2172
2173	} # end export()
2174
2175
2176	## DNSDB::__export_tiny
2177	# Internal sub to implement tinyDNS (compatible) export
2178	# Takes database handle, filehandle to write export to, optional argument(s)
2179	# to determine which data gets exported
2180	sub __export_tiny {
2181	my $dbh = shift;
2182	my $datafile = shift;
2183
2184	##fixme: slurp up further options to specify particular zone(s) to export
2185
2186	## Convert a bare number into an octal-coded pair of octets.
2187	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
2188	sub octalize {
2189	my $tmp = shift;
2190	my $srctype = shift \|\| 'h'; # default assumes hex string
2191	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
2192	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
2193	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
2194	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
2195	}
2196
2197	##fixme: fail if $datafile isn't an open, writable file
2198
2199	# easy case - export all evarything
2200	# not-so-easy case - export item(s) specified
2201	# todo: figure out what kind of list we use to export items
2202
2203	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
2204	my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl ".
2205	"FROM records WHERE domain_id=?");
2206	$domsth->execute();
2207	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
2208	$recsth->execute($domid);
2209	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $recsth->fetchrow_array) {
2210	##fixme: need to store location in the db, and retrieve it here.
2211	# temporarily hardcoded to empty so we can include it further down.
2212	my $loc = '';
2213
2214	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
2215	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
2216	# timestamps are TAI64
2217	# ~~ 2^62 + time()
2218	my $stamp = '';
2219
2220	# raw packet in unknown format: first byte indicates length
2221	# of remaining data, allows up to 255 raw bytes
2222
2223	##fixme? append . to all host/val hostnames
2224	if ($typemap{$type} eq 'SOA') {
2225
2226	# host contains pri-ns:responsible
2227	# val is abused to contain refresh:retry:expire:minttl
2228	##fixme: "manual" serial vs tinydns-autoserial
2229	# let's be explicit about abusing $host and $val
2230	my ($email, $primary) = (split /:/, $host)[0,1];
2231	my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
2232	print $datafile "Z$dom:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
2233
2234	} elsif ($typemap{$type} eq 'A') {
2235
2236	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
2237
2238	} elsif ($typemap{$type} eq 'NS') {
2239
2240	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
2241
2242	} elsif ($typemap{$type} eq 'AAAA') {
2243
2244	print $datafile ":$host:28:";
2245	my $altgrp = 0;
2246	my @altconv;
2247	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
2248	foreach (split /:/, $val) {
2249	if (/^$/) {
2250	# flag blank entry; this is a series of 0's of (currently) unknown length
2251	$altconv[$altgrp++] = 's';
2252	} else {
2253	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
2254	$altconv[$altgrp++] = octalize($_)
2255	}
2256	}
2257	foreach my $octet (@altconv) {
2258	# if not 's', output
2259	print $datafile $octet unless $octet =~ /^s$/;
2260	# if 's', output (9-array length)x literal '\000\000'
2261	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
2262	}
2263	print $datafile ":$ttl:$stamp:$loc\n";
2264
2265	} elsif ($typemap{$type} eq 'MX') {
2266
2267	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
2268
2269	} elsif ($typemap{$type} eq 'TXT') {
2270
2271	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
2272	$val =~ s/:/\\072/g; # may need to replace other symbols
2273	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
2274
2275	# by-hand TXT
2276	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
2277	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
2278	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
2279
2280	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
2281	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
2282
2283	# very long TXT record as brought in by axfr-get
2284	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
2285	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
2286	#:longtxt.deepnet.cx:16:
2287	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
2288	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
2289	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
2290	#:3600
2291
2292	} elsif ($typemap{$type} eq 'CNAME') {
2293
2294	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
2295
2296	} elsif ($typemap{$type} eq 'SRV') {
2297
2298	# data is two-byte values for priority, weight, port, in that order,
2299	# followed by length/string data
2300
2301	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
2302
2303	$val .= '.' if $val !~ /\.$/;
2304	foreach (split /\./, $val) {
2305	printf $datafile "\\%0.3o%s", length($_), $_;
2306	}
2307	print $datafile "\\000:$ttl:$stamp:$loc\n";
2308
2309	} elsif ($typemap{$type} eq 'RP') {
2310
2311	# RP consists of two mostly free-form strings.
2312	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
2313	# The second is the "hostname" of a TXT record with more info.
2314	print $datafile ":$host:17:";
2315	my ($who,$what) = split /\s/, $val;
2316	foreach (split /\./, $who) {
2317	printf $datafile "\\%0.3o%s", length($_), $_;
2318	}
2319	print $datafile '\000';
2320	foreach (split /\./, $what) {
2321	printf $datafile "\\%0.3o%s", length($_), $_;
2322	}
2323	print $datafile "\\000:$ttl:$stamp:$loc\n";
2324
2325	} elsif ($typemap{$type} eq 'PTR') {
2326
2327	# must handle both IPv4 and IPv6
2328	##work
2329	# data should already be in suitable reverse order.
2330	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
2331
2332	} else {
2333	# raw record. we don't know what's in here, so we ASS-U-ME the user has
2334	# put it in correctly, since either the user is messing directly with the
2335	# database, or the record was imported via AXFR
2336	# <split by char>
2337	# convert anything not a-zA-Z0-9.- to octal coding
2338
2339	##fixme: add flag to export "unknown" record types - note we'll probably end up
2340	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
2341	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
2342
2343	} # record type if-else
2344
2345	} # while ($recsth)
2346	} # while ($domsth)
2347	} # end __export_tiny()
2348
2349
2350	## DNSDB::mailNotify()
2351	# Sends notification mail to recipients regarding an IPDB operation
2352	sub mailNotify {
2353	my $dbh = shift;
2354	my ($subj,$message) = @_;
2355
2356	return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
2357
2358	my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
2359
2360	my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
2361
2362	$mailer->mail($mailsender);
2363	$mailer->to($config{mailnotify});
2364	$mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
2365	"To: <$config{mailnotify}>\n",
2366	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
2367	"Subject: $subj\n",
2368	"X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
2369	"Organization: $config{orgname}\n",
2370	"\n$message\n");
2371	$mailer->quit;
2372	}
2373
2374	# shut Perl up
2375	1;

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