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source: trunk/DNSDB.pm@ 229

Last change on this file since 229 was 229, checked in by Kris Deugau, 13 years ago

/trunk

Record validation refactoring
Complete A and AAAA record (*almost* identical)

Property svn:keywords set to Date Rev Author Id

File size: 79.3 KB

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1	# dns/trunk/DNSDB.pm
2	# Abstraction functions for DNS administration
3	###
4	# SVN revision info
5	# $Date: 2012-02-08 21:00:24 +0000 (Wed, 08 Feb 2012) $
6	# SVN revision $Rev: 229 $
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	## (Semi)private variables
135	# Hash of functions for validating record types. Filled in initGlobals() since
136	# it relies on visibility flags from the rectypes table in the DB
137	my %validators;
138
139
140	##
141	## utility functions
142	# _rectable()
143	# Takes default+rdns flags, returns appropriate table name
144	sub _rectable {
145	my $def = shift;
146	my $rev = shift;
147
148	return 'records' if $def ne 'y';
149	return 'default_records' if $rev ne 'y';
150	return 'default_rev_records';
151	} # end _rectable()
152
153	# _recparent()
154	# Takes default+rdns flags, returns appropriate parent-id column name
155	sub _recparent {
156	my $def = shift;
157	my $rev = shift;
158
159	return 'group_id' if $def eq 'y';
160	return 'rdns_id' if $rev eq 'y';
161	return 'domain_id';
162	} # end _recparent()
163
164	# Check an IP to be added in a reverse zone to see if it's really in the requested parent.
165	# Takes a database handle, default and reverse flags, IP (fragment) to check, parent zone ID,
166	# and a reference to a NetAddr::IP object (also used to pass back a fully-reconstructed IP for
167	# database insertion)
168	sub _ipparent {
169	my $dbh = shift;
170	my $defrec = shift;
171	my $revrec = shift;
172	my $val = shift;
173	my $id = shift;
174	my $addr = shift;
175
176	# subsub to split, reverse, and overlay an IP fragment on a netblock
177	sub __rev_overlay {
178	my $splitme = shift; # ':' or '.', m'lud?
179	my $parnet = shift;
180	my $val = shift;
181	my $addr = shift;
182
183	my $joinme = $splitme;
184	$splitme = '\.' if $splitme eq '.';
185	my @working = reverse(split($splitme, $parnet->addr)) or warn $!;
186	my @parts = reverse(split($splitme, $val));
187	for (my $i = 0; $i <= $#parts; $i++) {
188	$working[$i] = $parts[$i];
189	}
190	my $checkme = NetAddr::IP->new(join($joinme, reverse(@working))) or return;
191	return unless $checkme->within($parnet);
192	$$addr = $checkme; # force "correct" IP to be recorded.
193	return 1;
194	}
195
196	my ($parstr) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id = ?", undef, ($id));
197	my $parnet = NetAddr::IP->new($parstr);
198
199	# Fail early on v6-in-v4 or v4-in-v6. We're not accepting these ATM.
200	return if $parnet->addr =~ /\./ && $val =~ /:/;
201	return if $parnet->addr =~ /:/ && $val =~ /\./;
202
203	# Arguably this is incorrect, but...
204	if ($val =~ /^::/) {
205	$val =~ s/^:+//; # gotta strip'em all...
206	return __rev_overlay(':', $parnet, $val, $addr);
207	}
208	if ($val =~ /^\./) {
209	$val =~ s/^\.+//;
210	return __rev_overlay('.', $parnet, $val, $addr);
211	}
212
213	if ($revrec eq 'y') {
214	if ($$addr && !$$addr->{isv6}) {
215	# argh. 12.1 == 12.0.0.1 (WTF?)
216	# so we do this The Hard Way, because of the stupid
217	if ($val =~ /^(?:\d{1,3}\.){3}\d{1,3}$/) {
218	# we really have a real IP.
219	return $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE revnet >> ?", undef, ($val));
220	} else {
221	return __rev_overlay('.', $parnet, $val, $addr);
222	}
223	} elsif ($$addr && $$addr->{isv6}) {
224	# real v6 address.
225	return $dbh->selectrow_array("SELECT count(*) FROM revzones WHERE revnet >> ?", undef, ($val));
226	} else {
227	# v6 tail
228	return __rev_overlay(':', $parnet, $val, $addr);
229	}
230	# should be impossible to get here...
231	}
232	# ... and here.
233	# can't do nuttin' in forward zones
234	} # end _ipparent()
235
236
237	##
238	## Record validation subs.
239	##
240
241	# A record
242	sub _validate_1 {
243	my $dbh = shift;
244	my $defrec = shift;
245	my $revrec = shift;
246	my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
247	# domain_id for domain records)
248
249	# These next two should be references, so we can pass them back altered. Yes, we really want to do that.
250	my $host = shift;
251	my $val = shift;
252	my $addr = shift;
253
254	return ('FAIL', 'Reverse zones cannot contain A records') if $revrec eq 'y';
255
256	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
257	# or the intended parent domain for live records.
258	my $pname = ($defrec eq 'y' ? 'DOMAIN' : domainName($dbh,$id));
259	$$host =~ s/\.*$/\.$pname/ if $$host !~ /$pname$/;
260
261	# Check IP is well-formed, and that it's a v4 address
262	return ('FAIL',"A record must be a valid IPv4 address")
263	unless $addr && !$addr->{isv6};
264	# coerce IP/value to normalized form for storage
265	$$val = $addr->addr;
266
267	return ('OK','OK');
268	} # done A record
269
270	# NS record
271	sub _validate_2 {
272	return ('OK','OK');
273	} # done NS record
274
275	# CNAME record
276	sub _validate_5 {
277	return ('OK','OK');
278	} # done CNAME record
279
280	# SOA record
281	sub _validate_6 {
282	return ('OK','OK');
283	} # done SOA record
284
285	# PTR record
286	sub _validate_12 {
287	return ('OK','OK');
288	} # done PTR record
289
290	# MX record
291	sub _validate_15 {
292	return ('OK','OK');
293	} # done MX record
294
295	# TXT record
296	sub _validate_16 {
297	return ('OK','OK');
298	} # done TXT record
299
300	# RP record
301	sub _validate_17 {
302	return ('OK','OK');
303	} # done RP record
304
305	# AAAA record
306	sub _validate_28 {
307	my $dbh = shift;
308	my $defrec = shift;
309	my $revrec = shift;
310	my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
311	# domain_id for domain records)
312
313	# These next two should be references, so we can pass them back altered. Yes, we really want to do that.
314	my $host = shift;
315	my $val = shift;
316	my $addr = shift;
317
318	return ('FAIL', 'Reverse zones cannot contain AAAA records') if $revrec eq 'y';
319
320	# Coerce all hostnames to end in ".DOMAIN" for group/default records,
321	# or the intended parent domain for live records.
322	my $pname = ($defrec eq 'y' ? 'DOMAIN' : domainName($dbh,$id));
323	$$host =~ s/\.*$/\.$pname/ if $$host !~ /$pname$/;
324
325	# Check IP is well-formed, and that it's a v6 address
326	return ('FAIL',"AAAA record must be a valid IPv6 address")
327	unless $addr && $addr->{isv6};
328	# coerce IP/value to normalized form for storage
329	$$val = $addr->addr;
330
331	return ('OK','OK');
332	} # done AAAA record
333
334	# SRV record
335	sub _validate_33 {
336	return ('OK','OK');
337	} # done SRV record
338
339	# Now the custom types
340
341	# A+PTR record
342	sub _validate_65280 {
343	return ('OK','OK');
344	} # done A+PTR record
345
346	# AAAA+PTR record
347	sub _validate_65281 {
348	return ('OK','OK');
349	} # done AAAA+PTR record
350
351	# PTR template record
352	sub _validate_65282 {
353	return ('OK','OK');
354	} # done PTR template record
355
356	# A+PTR template record
357	sub _validate_65283 {
358	return ('OK','OK');
359	} # done AAAA+PTR template record
360
361	# AAAA+PTR template record
362	sub _validate_65284 {
363	return ('OK','OK');
364	} # done AAAA+PTR template record
365
366
367
368	##
369	## Initialization and cleanup subs
370	##
371
372
373	## DNSDB::loadConfig()
374	# Load the minimum required initial state (DB connect info) from a config file
375	# Load misc other bits while we're at it.
376	# Takes an optional basename and config path to look for
377	# Populates the %config and %def hashes
378	sub loadConfig {
379	my $basename = shift \|\| ''; # this will work OK
380	##fixme $basename isn't doing what I think I thought I was trying to do.
381
382	my $deferr = ''; # place to put error from default config file in case we can't find either one
383
384	my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
385	$configroot = '' if $basename =~ m\|^/\|;
386	$basename .= ".conf" if $basename !~ /\.conf$/;
387	my $defconfig = "$configroot/dnsdb.conf";
388	my $siteconfig = "$configroot/$basename";
389
390	# System defaults
391	__cfgload("$defconfig") or $deferr = $errstr;
392
393	# Per-site-ish settings.
394	if ($basename ne '.conf') {
395	unless (__cfgload("$siteconfig")) {
396	$errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
397	"Error opening site config file $siteconfig";
398	return;
399	}
400	}
401
402	# Munge log_failures.
403	if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
404	# true/false, on/off, yes/no all valid.
405	if ($config{log_failures} =~ /^(?:true\|false\|on\|off\|yes\|no)$/) {
406	if ($config{log_failures} =~ /(?:true\|on\|yes)/) {
407	$config{log_failures} = 1;
408	} else {
409	$config{log_failures} = 0;
410	}
411	} else {
412	$errstr = "Bad log_failures setting $config{log_failures}";
413	$config{log_failures} = 1;
414	# Bad setting shouldn't be fatal.
415	# return 2;
416	}
417	}
418
419	# All good, clear the error and go home.
420	$errstr = '';
421	return 1;
422	} # end loadConfig()
423
424
425	## DNSDB::__cfgload()
426	# Private sub to parse a config file and load it into %config
427	# Takes a file handle on an open config file
428	sub __cfgload {
429	$errstr = '';
430	my $cfgfile = shift;
431
432	if (open CFG, "<$cfgfile") {
433	while (<CFG>) {
434	chomp;
435	s/^\s*//;
436	next if /^#/;
437	next if /^$/;
438	# hmm. more complex bits in this file might require [heading] headers, maybe?
439	# $mode = $1 if /^\[(a-z)+]/;
440	# DB connect info
441	$config{dbname} = $1 if /^dbname\s=\s([a-z0-9_.-]+)/i;
442	$config{dbuser} = $1 if /^dbuser\s=\s([a-z0-9_.-]+)/i;
443	$config{dbpass} = $1 if /^dbpass\s=\s([a-z0-9_.-]+)/i;
444	$config{dbhost} = $1 if /^dbhost\s=\s([a-z0-9_.-]+)/i;
445	# SOA defaults
446	$def{contact} = $1 if /^contact\s=\s([a-z0-9_.-]+)/i;
447	$def{prins} = $1 if /^prins\s=\s([a-z0-9_.-]+)/i;
448	$def{soattl} = $1 if /^soattl\s=\s(\d+)/i;
449	$def{refresh} = $1 if /^refresh\s=\s(\d+)/i;
450	$def{retry} = $1 if /^retry\s=\s(\d+)/i;
451	$def{expire} = $1 if /^expire\s=\s(\d+)/i;
452	$def{minttl} = $1 if /^minttl\s=\s(\d+)/i;
453	$def{ttl} = $1 if /^ttl\s=\s(\d+)/i;
454	# Mail settings
455	$config{mailhost} = $1 if /^mailhost\s=\s([a-z0-9_.-]+)/i;
456	$config{mailnotify} = $1 if /^mailnotify\s=\s([a-z0-9_.\@-]+)/i;
457	$config{mailsender} = $1 if /^mailsender\s=\s([a-z0-9_.\@-]+)/i;
458	$config{mailname} = $1 if /^mailname\s=\s([a-z0-9\s_.-]+)/i;
459	$config{orgname} = $1 if /^orgname\s=\s([a-z0-9\s_.,'-]+)/i;
460	$config{domain} = $1 if /^domain\s=\s([a-z0-9_.-]+)/i;
461	# session - note this is fed directly to CGI::Session
462	$config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s=\s(\d+[smhdwMy]?)/;
463	$config{sessiondir} = $1 if m{^sessiondir\s=\s([a-z0-9/_.-]+)}i;
464	# misc
465	$config{log_failures} = $1 if /^log_failures\s=\s([a-z01]+)/i;
466	$config{perpage} = $1 if /^perpage\s=\s(\d+)/i;
467	}
468	close CFG;
469	} else {
470	$errstr = $!;
471	return;
472	}
473	return 1;
474	} # end __cfgload()
475
476
477	## DNSDB::connectDB()
478	# Creates connection to DNS database.
479	# Requires the database name, username, and password.
480	# Returns a handle to the db.
481	# Set up for a PostgreSQL db; could be any transactional DBMS with the
482	# right changes.
483	sub connectDB {
484	$errstr = '';
485	my $dbname = shift;
486	my $user = shift;
487	my $pass = shift;
488	my $dbh;
489	my $DSN = "DBI:Pg:dbname=$dbname";
490
491	my $host = shift;
492	$DSN .= ";host=$host" if $host;
493
494	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
495	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
496	$dbh = DBI->connect($DSN, $user, $pass, {
497	AutoCommit => 1,
498	PrintError => 0
499	})
500	or return (undef, $DBI::errstr) if(!$dbh);
501
502	##fixme: initialize the DB if we can't find the table (since, by definition, there's
503	# nothing there if we can't select from it...)
504	my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
505	my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
506	return (undef,$DBI::errstr) if $dbh->err;
507
508	#if ($tblcount == 0) {
509	# # create tables one at a time, checking for each.
510	# return (undef, "check table misc missing");
511	#}
512
513
514	# Return here if we can't select.
515	# This should retrieve the dbversion key.
516	my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
517	$sth->execute();
518	return (undef,$DBI::errstr) if ($sth->err);
519
520	##fixme: do stuff to the DB on version mismatch
521	# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
522	# DB should be downward-compatible; column defaults should give sane (if possibly
523	# useless-and-needs-help) values in columns an older software stack doesn't know about.
524
525	# See if the select returned anything (or null data). This should
526	# succeed if the select executed, but...
527	$sth->fetchrow();
528	return (undef,$DBI::errstr) if ($sth->err);
529
530	$sth->finish;
531
532	# If we get here, we should be OK.
533	return ($dbh,"DB connection OK");
534	} # end connectDB
535
536
537	## DNSDB::finish()
538	# Cleans up after database handles and so on.
539	# Requires a database handle
540	sub finish {
541	my $dbh = $_[0];
542	$dbh->disconnect;
543	} # end finish
544
545
546	## DNSDB::initGlobals()
547	# Initialize global variables
548	# NB: this does NOT include web-specific session variables!
549	# Requires a database handle
550	sub initGlobals {
551	my $dbh = shift;
552
553	# load record types from database
554	my $sth = $dbh->prepare("SELECT val,name,stdflag FROM rectypes");
555	$sth->execute;
556	while (my ($recval,$recname,$stdflag) = $sth->fetchrow_array()) {
557	$typemap{$recval} = $recname;
558	$reverse_typemap{$recname} = $recval;
559	# now we fill the record validation function hash
560	if ($stdflag < 5) {
561	my $fn = "_validate_$recval";
562	$validators{$recval} = \&$fn;
563	} else {
564	my $fn = "sub { return ('FAIL','Type $recval ($recname) not supported'); }";
565	$validators{$recval} = eval $fn;
566	}
567	}
568	} # end initGlobals
569
570
571	## DNSDB::initPermissions()
572	# Set up permissions global
573	# Takes database handle and UID
574	sub initPermissions {
575	my $dbh = shift;
576	my $uid = shift;
577
578	# %permissions = $(getPermissions($dbh,'user',$uid));
579	getPermissions($dbh, 'user', $uid, \%permissions);
580
581	} # end initPermissions()
582
583
584	## DNSDB::getPermissions()
585	# Get permissions from DB
586	# Requires DB handle, group or user flag, ID, and hashref.
587	sub getPermissions {
588	my $dbh = shift;
589	my $type = shift;
590	my $id = shift;
591	my $hash = shift;
592
593	my $sql = qq(
594	SELECT
595	p.admin,p.self_edit,
596	p.group_create,p.group_edit,p.group_delete,
597	p.user_create,p.user_edit,p.user_delete,
598	p.domain_create,p.domain_edit,p.domain_delete,
599	p.record_create,p.record_edit,p.record_delete
600	FROM permissions p
601	);
602	if ($type eq 'group') {
603	$sql .= qq(
604	JOIN groups g ON g.permission_id=p.permission_id
605	WHERE g.group_id=?
606	);
607	} else {
608	$sql .= qq(
609	JOIN users u ON u.permission_id=p.permission_id
610	WHERE u.user_id=?
611	);
612	}
613
614	my $sth = $dbh->prepare($sql);
615
616	$sth->execute($id) or die "argh: ".$sth->errstr;
617
618	# my $permref = $sth->fetchrow_hashref;
619	# return $permref;
620	# $hash = $permref;
621	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
622	($hash->{admin},$hash->{self_edit},
623	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
624	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
625	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
626	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
627	= $sth->fetchrow_array;
628
629	} # end getPermissions()
630
631
632	## DNSDB::changePermissions()
633	# Update an ACL entry
634	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
635	sub changePermissions {
636	my $dbh = shift;
637	my $type = shift;
638	my $id = shift;
639	my $newperms = shift;
640	my $inherit = shift \|\| 0;
641
642	my $failmsg = '';
643
644	# see if we're switching from inherited to custom. for bonus points,
645	# snag the permid and parent permid anyway, since we'll need the permid
646	# to set/alter custom perms, and both if we're switching from custom to
647	# inherited.
648	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
649	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
650	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
651	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
652	$sth->execute($id);
653
654	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
655
656	# hack phtoui
657	# group id 1 is "special" in that it's it's own parent (err... possibly.)
658	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
659	$wasinherited = 0 if ($type eq 'group' && $id == 1);
660
661	local $dbh->{AutoCommit} = 0;
662	local $dbh->{RaiseError} = 1;
663
664	# Wrap all the SQL in a transaction
665	eval {
666	if ($inherit) {
667
668	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
669	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
670	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
671
672	} else {
673
674	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
675	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
676	# ... if'n'when we have groups with fully inherited permissions.
677	# SQL is coo
678	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
679	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
680	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
681	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
682	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
683	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
684	}
685
686	# and now set the permissions we were passed
687	foreach (@permtypes) {
688	if (defined ($newperms->{$_})) {
689	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
690	}
691	}
692
693	} # (inherited->)? custom
694
695	$dbh->commit;
696	}; # end eval
697	if ($@) {
698	my $msg = $@;
699	eval { $dbh->rollback; };
700	return ('FAIL',"$failmsg: $msg ($permid)");
701	} else {
702	return ('OK',$permid);
703	}
704
705	} # end changePermissions()
706
707
708	## DNSDB::comparePermissions()
709	# Compare two permission hashes
710	# Returns '>', '<', '=', '!'
711	sub comparePermissions {
712	my $p1 = shift;
713	my $p2 = shift;
714
715	my $retval = '='; # assume equality until proven otherwise
716
717	no warnings "uninitialized";
718
719	foreach (@permtypes) {
720	next if $p1->{$_} == $p2->{$_}; # equal is good
721	if ($p1->{$_} && !$p2->{$_}) {
722	if ($retval eq '<') { # if we've already found an unequal pair where
723	$retval = '!'; # $p2 has more access, and we now find a pair
724	last; # where $p1 has more access, the overall access
725	} # is neither greater or lesser, it's unequal.
726	$retval = '>';
727	}
728	if (!$p1->{$_} && $p2->{$_}) {
729	if ($retval eq '>') { # if we've already found an unequal pair where
730	$retval = '!'; # $p1 has more access, and we now find a pair
731	last; # where $p2 has more access, the overall access
732	} # is neither greater or lesser, it's unequal.
733	$retval = '<';
734	}
735	}
736	return $retval;
737	} # end comparePermissions()
738
739
740	## DNSDB::changeGroup()
741	# Change group ID of an entity
742	# Takes a database handle, entity type, entity ID, and new group ID
743	sub changeGroup {
744	my $dbh = shift;
745	my $type = shift;
746	my $id = shift;
747	my $newgrp = shift;
748
749	##fixme: fail on not enough args
750	#return ('FAIL', "Missing
751
752	if ($type eq 'domain') {
753	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
754	or return ('FAIL','Group change failed: '.$dbh->errstr);
755	} elsif ($type eq 'user') {
756	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
757	or return ('FAIL','Group change failed: '.$dbh->errstr);
758	} elsif ($type eq 'group') {
759	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
760	or return ('FAIL','Group change failed: '.$dbh->errstr);
761	}
762	return ('OK','OK');
763	} # end changeGroup()
764
765
766	## DNSDB::_log()
767	# Log an action
768	# Internal sub
769	# Takes a database handle, domain_id, user_id, group_id, email, name and log entry
770	##fixme: convert to trailing hash for user info
771	# User info must contain a (user ID OR username)+fullname
772	sub _log {
773	my $dbh = shift;
774	my ($domain_id,$user_id,$group_id,$username,$name,$entry) = @_;
775
776	##fixme: need better way(s?) to snag userinfo for log entries. don't want to have
777	# to pass around yet another constant (already passing $dbh, shouldn't need to)
778	my $fullname;
779	if (!$user_id) {
780	($user_id, $fullname) = $dbh->selectrow_array("SELECT user_id, firstname \|\| ' ' \|\| lastname FROM users".
781	" WHERE username=?", undef, ($username));
782	} elsif (!$username) {
783	($username, $fullname) = $dbh->selectrow_array("SELECT username, firstname \|\| ' ' \|\| lastname FROM users".
784	" WHERE user_id=?", undef, ($user_id));
785	} else {
786	($fullname) = $dbh->selectrow_array("SELECT firstname \|\| ' ' \|\| lastname FROM users".
787	" WHERE user_id=?", undef, ($user_id));
788	}
789
790	$name = $fullname if !$name;
791
792	##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
793	$dbh->do("INSERT INTO log (domain_id,user_id,group_id,email,name,entry) VALUES (?,?,?,?,?,?)", undef,
794	($domain_id,$user_id,$group_id,$username,$name,$entry));
795	# 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
796	# 1 2 3 4 5 6 7
797	} # end _log
798
799
800	##
801	## Processing subs
802	##
803
804	## DNSDB::addDomain()
805	# Add a domain
806	# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
807	# and user info hash (for logging).
808	# Returns a status code and message
809	sub addDomain {
810	$errstr = '';
811	my $dbh = shift;
812	return ('FAIL',"Need database handle") if !$dbh;
813	my $domain = shift;
814	return ('FAIL',"Domain must not be blank") if !$domain;
815	my $group = shift;
816	return ('FAIL',"Need group") if !defined($group);
817	my $state = shift;
818	return ('FAIL',"Need domain status") if !defined($state);
819
820	my %userinfo = @_; # remaining bits.
821	# user ID, username, user full name
822
823	$state = 1 if $state =~ /^active$/;
824	$state = 1 if $state =~ /^on$/;
825	$state = 0 if $state =~ /^inactive$/;
826	$state = 0 if $state =~ /^off$/;
827
828	return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
829
830	return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
831
832	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
833	my $dom_id;
834
835	# quick check to start to see if we've already got one
836	$sth->execute($domain);
837	($dom_id) = $sth->fetchrow_array;
838
839	return ('FAIL', "Domain already exists") if $dom_id;
840
841	# Allow transactions, and raise an exception on errors so we can catch it later.
842	# Use local to make sure these get "reset" properly on exiting this block
843	local $dbh->{AutoCommit} = 0;
844	local $dbh->{RaiseError} = 1;
845
846	# Wrap all the SQL in a transaction
847	eval {
848	# insert the domain...
849	$dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
850
851	# get the ID...
852	($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
853
854	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
855	"Added ".($state ? 'active' : 'inactive')." domain $domain");
856
857	# ... and now we construct the standard records from the default set. NB: group should be variable.
858	my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
859	my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
860	" VALUES ($dom_id,?,?,?,?,?,?,?)");
861	$sth->execute($group);
862	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
863	$host =~ s/DOMAIN/$domain/g;
864	$val =~ s/DOMAIN/$domain/g;
865	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
866	if ($typemap{$type} eq 'SOA') {
867	my @tmp1 = split /:/, $host;
868	my @tmp2 = split /:/, $val;
869	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
870	"[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
871	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
872	} else {
873	my $logentry = "[new $domain] Added record '$host $typemap{$type}";
874	$logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
875	$logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
876	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
877	$logentry." $val', TTL $ttl");
878	}
879	}
880
881	# once we get here, we should have suceeded.
882	$dbh->commit;
883	}; # end eval
884
885	if ($@) {
886	my $msg = $@;
887	eval { $dbh->rollback; };
888	return ('FAIL',$msg);
889	} else {
890	return ('OK',$dom_id);
891	}
892	} # end addDomain
893
894
895	## DNSDB::delDomain()
896	# Delete a domain.
897	# for now, just delete the records, then the domain.
898	# later we may want to archive it in some way instead (status code 2, for example?)
899	sub delDomain {
900	my $dbh = shift;
901	my $domid = shift;
902
903	# Allow transactions, and raise an exception on errors so we can catch it later.
904	# Use local to make sure these get "reset" properly on exiting this block
905	local $dbh->{AutoCommit} = 0;
906	local $dbh->{RaiseError} = 1;
907
908	my $failmsg = '';
909
910	# Wrap all the SQL in a transaction
911	eval {
912	my $sth = $dbh->prepare("delete from records where domain_id=?");
913	$failmsg = "Failure removing domain records";
914	$sth->execute($domid);
915	$sth = $dbh->prepare("delete from domains where domain_id=?");
916	$failmsg = "Failure removing domain";
917	$sth->execute($domid);
918
919	# once we get here, we should have suceeded.
920	$dbh->commit;
921	}; # end eval
922
923	if ($@) {
924	my $msg = $@;
925	eval { $dbh->rollback; };
926	return ('FAIL',"$failmsg: $msg");
927	} else {
928	return ('OK','OK');
929	}
930
931	} # end delDomain()
932
933
934	## DNSDB::domainName()
935	# Return the domain name based on a domain ID
936	# Takes a database handle and the domain ID
937	# Returns the domain name or undef on failure
938	sub domainName {
939	$errstr = '';
940	my $dbh = shift;
941	my $domid = shift;
942	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
943	$errstr = $DBI::errstr if !$domname;
944	return $domname if $domname;
945	} # end domainName()
946
947
948	## DNSDB::revName()
949	# Return the reverse zone name based on an rDNS ID
950	# Takes a database handle and the rDNS ID
951	# Returns the reverse zone name or undef on failure
952	sub revName {
953	$errstr = '';
954	my $dbh = shift;
955	my $revid = shift;
956	my ($revname) = $dbh->selectrow_array("SELECT revnet FROM revzones WHERE rdns_id=?", undef, ($revid) );
957	$errstr = $DBI::errstr if !$revname;
958	return $revname if $revname;
959	} # end revName()
960
961
962	## DNSDB::domainID()
963	# Takes a database handle and domain name
964	# Returns the domain ID number
965	sub domainID {
966	$errstr = '';
967	my $dbh = shift;
968	my $domain = shift;
969	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
970	$errstr = $DBI::errstr if !$domid;
971	return $domid if $domid;
972	} # end domainID()
973
974
975	## DNSDB::addGroup()
976	# Add a group
977	# Takes a database handle, group name, parent group, hashref for permissions,
978	# and optional template-vs-cloneme flag
979	# Returns a status code and message
980	sub addGroup {
981	$errstr = '';
982	my $dbh = shift;
983	my $groupname = shift;
984	my $pargroup = shift;
985	my $permissions = shift;
986
987	# 0 indicates "custom", hardcoded.
988	# Any other value clones that group's default records, if it exists.
989	my $inherit = shift \|\| 0;
990	##fixme: need a flag to indicate clone records or <?> ?
991
992	# Allow transactions, and raise an exception on errors so we can catch it later.
993	# Use local to make sure these get "reset" properly on exiting this block
994	local $dbh->{AutoCommit} = 0;
995	local $dbh->{RaiseError} = 1;
996
997	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
998	my $group_id;
999
1000	# quick check to start to see if we've already got one
1001	$sth->execute($groupname);
1002	($group_id) = $sth->fetchrow_array;
1003
1004	return ('FAIL', "Group already exists") if $group_id;
1005
1006	# Wrap all the SQL in a transaction
1007	eval {
1008	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
1009	$sth->execute($pargroup,$groupname);
1010
1011	$sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
1012	$sth->execute($groupname);
1013	my ($groupid) = $sth->fetchrow_array();
1014
1015	# Permissions
1016	if ($inherit) {
1017	} else {
1018	my @permvals;
1019	foreach (@permtypes) {
1020	if (!defined ($permissions->{$_})) {
1021	push @permvals, 0;
1022	} else {
1023	push @permvals, $permissions->{$_};
1024	}
1025	}
1026
1027	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
1028	$sth->execute($groupid,@permvals);
1029
1030	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
1031	$sth->execute($groupid);
1032	my ($permid) = $sth->fetchrow_array();
1033
1034	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
1035	} # done permission fiddling
1036
1037	# Default records
1038	$sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
1039	"VALUES ($groupid,?,?,?,?,?,?,?)");
1040	if ($inherit) {
1041	# Duplicate records from parent. Actually relying on inherited records feels
1042	# very fragile, and it would be problematic to roll over at a later time.
1043	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
1044	$sth2->execute($pargroup);
1045	while (my @clonedata = $sth2->fetchrow_array) {
1046	$sth->execute(@clonedata);
1047	}
1048	} else {
1049	##fixme: Hardcoding is Bad, mmmmkaaaay?
1050	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
1051	# could load from a config file, but somewhere along the line we need hardcoded bits.
1052	$sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
1053	$sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
1054	$sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
1055	$sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
1056	$sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
1057	$sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
1058	}
1059
1060	# once we get here, we should have suceeded.
1061	$dbh->commit;
1062	}; # end eval
1063
1064	if ($@) {
1065	my $msg = $@;
1066	eval { $dbh->rollback; };
1067	return ('FAIL',$msg);
1068	} else {
1069	return ('OK','OK');
1070	}
1071
1072	} # end addGroup()
1073
1074
1075	## DNSDB::delGroup()
1076	# Delete a group.
1077	# Takes a group ID
1078	# Returns a status code and message
1079	sub delGroup {
1080	my $dbh = shift;
1081	my $groupid = shift;
1082
1083	# Allow transactions, and raise an exception on errors so we can catch it later.
1084	# Use local to make sure these get "reset" properly on exiting this block
1085	local $dbh->{AutoCommit} = 0;
1086	local $dbh->{RaiseError} = 1;
1087
1088	##fixme: locate "knowable" error conditions and deal with them before the eval
1089	# ... or inside, whatever.
1090	# -> domains still exist in group
1091	# -> ...
1092	my $failmsg = '';
1093
1094	# Wrap all the SQL in a transaction
1095	eval {
1096	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
1097	$sth->execute($groupid);
1098	my ($domcnt) = $sth->fetchrow_array;
1099	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
1100	die "$domcnt domains still in group\n" if $domcnt;
1101
1102	$sth = $dbh->prepare("delete from default_records where group_id=?");
1103	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
1104	$sth->execute($groupid);
1105	$sth = $dbh->prepare("delete from groups where group_id=?");
1106	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
1107	$sth->execute($groupid);
1108
1109	# once we get here, we should have suceeded.
1110	$dbh->commit;
1111	}; # end eval
1112
1113	if ($@) {
1114	my $msg = $@;
1115	eval { $dbh->rollback; };
1116	return ('FAIL',"$failmsg: $msg");
1117	} else {
1118	return ('OK','OK');
1119	}
1120	} # end delGroup()
1121
1122
1123	## DNSDB::getChildren()
1124	# Get a list of all groups whose parent^n is group <n>
1125	# Takes a database handle, group ID, reference to an array to put the group IDs in,
1126	# and an optional flag to return only immediate children or all children-of-children
1127	# default to returning all children
1128	# Calls itself
1129	sub getChildren {
1130	$errstr = '';
1131	my $dbh = shift;
1132	my $rootgroup = shift;
1133	my $groupdest = shift;
1134	my $immed = shift \|\| 'all';
1135
1136	# special break for default group; otherwise we get stuck.
1137	if ($rootgroup == 1) {
1138	# by definition, group 1 is the Root Of All Groups
1139	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
1140	($immed ne 'all' ? " AND parent_group_id=1" : ''));
1141	$sth->execute;
1142	while (my @this = $sth->fetchrow_array) {
1143	push @$groupdest, @this;
1144	}
1145	} else {
1146	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
1147	$sth->execute($rootgroup);
1148	return if $sth->rows == 0;
1149	my @grouplist;
1150	while (my ($group) = $sth->fetchrow_array) {
1151	push @$groupdest, $group;
1152	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
1153	}
1154	}
1155	} # end getChildren()
1156
1157
1158	## DNSDB::groupName()
1159	# Return the group name based on a group ID
1160	# Takes a database handle and the group ID
1161	# Returns the group name or undef on failure
1162	sub groupName {
1163	$errstr = '';
1164	my $dbh = shift;
1165	my $groupid = shift;
1166	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
1167	$sth->execute($groupid);
1168	my ($groupname) = $sth->fetchrow_array();
1169	$errstr = $DBI::errstr if !$groupname;
1170	return $groupname if $groupname;
1171	} # end groupName
1172
1173
1174	## DNSDB::groupID()
1175	# Return the group ID based on the group name
1176	# Takes a database handle and the group name
1177	# Returns the group ID or undef on failure
1178	sub groupID {
1179	$errstr = '';
1180	my $dbh = shift;
1181	my $group = shift;
1182	my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
1183	$errstr = $DBI::errstr if !$grpid;
1184	return $grpid if $grpid;
1185	} # end groupID()
1186
1187
1188	## DNSDB::addUser()
1189	# Add a user.
1190	# Takes a DB handle, username, group ID, password, state (active/inactive).
1191	# Optionally accepts:
1192	# user type (user/admin) - defaults to user
1193	# permissions string - defaults to inherit from group
1194	# three valid forms:
1195	# i - Inherit permissions
1196	# c:<user_id> - Clone permissions from <user_id>
1197	# C:<permission list> - Set these specific permissions
1198	# first name - defaults to username
1199	# last name - defaults to blank
1200	# phone - defaults to blank (could put other data within column def)
1201	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
1202	sub addUser {
1203	$errstr = '';
1204	my $dbh = shift;
1205	my $username = shift;
1206	my $group = shift;
1207	my $pass = shift;
1208	my $state = shift;
1209
1210	return ('FAIL', "Missing one or more required entries") if !defined($state);
1211	return ('FAIL', "Username must not be blank") if !$username;
1212
1213	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
1214
1215	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
1216
1217	my $fname = shift \|\| $username;
1218	my $lname = shift \|\| '';
1219	my $phone = shift \|\| ''; # not going format-check
1220
1221	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
1222	my $user_id;
1223
1224	# quick check to start to see if we've already got one
1225	$sth->execute($username);
1226	($user_id) = $sth->fetchrow_array;
1227
1228	return ('FAIL', "User already exists") if $user_id;
1229
1230	# Allow transactions, and raise an exception on errors so we can catch it later.
1231	# Use local to make sure these get "reset" properly on exiting this block
1232	local $dbh->{AutoCommit} = 0;
1233	local $dbh->{RaiseError} = 1;
1234
1235	my $failmsg = '';
1236
1237	# Wrap all the SQL in a transaction
1238	eval {
1239	# insert the user... note we set inherited perms by default since
1240	# it's simple and cleans up some other bits of state
1241	my $sth = $dbh->prepare("INSERT INTO users ".
1242	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
1243	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
1244	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
1245
1246	# get the ID...
1247	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
1248
1249	# Permissions! Gotta set'em all!
1250	die "Invalid permission string $permstring"
1251	if $permstring !~ /^(?:
1252	i # inherit
1253	\|c:\d+ # clone
1254	# custom. no, the leading , is not a typo
1255	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
1256	)$/x;
1257	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
1258	if ($permstring ne 'i') {
1259	# for cloned or custom permissions, we have to create a new permissions entry.
1260	my $clonesrc = $group;
1261	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
1262	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
1263	"SELECT $permlist,? FROM permissions WHERE permission_id=".
1264	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
1265	undef, ($user_id,$clonesrc) );
1266	$dbh->do("UPDATE users SET permission_id=".
1267	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
1268	"WHERE user_id=?", undef, ($user_id, $user_id) );
1269	}
1270	if ($permstring =~ /^C:/) {
1271	# finally for custom permissions, we set the passed-in permissions (and unset
1272	# any that might have been brought in by the clone operation above)
1273	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
1274	undef, ($user_id) );
1275	foreach (@permtypes) {
1276	if ($permstring =~ /,$_/) {
1277	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
1278	} else {
1279	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
1280	}
1281	}
1282	}
1283
1284	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
1285
1286	##fixme: add another table to hold name/email for log table?
1287
1288	# once we get here, we should have suceeded.
1289	$dbh->commit;
1290	}; # end eval
1291
1292	if ($@) {
1293	my $msg = $@;
1294	eval { $dbh->rollback; };
1295	return ('FAIL',$msg." $failmsg");
1296	} else {
1297	return ('OK',$user_id);
1298	}
1299	} # end addUser
1300
1301
1302	## DNSDB::checkUser()
1303	# Check user/pass combo on login
1304	sub checkUser {
1305	my $dbh = shift;
1306	my $user = shift;
1307	my $inpass = shift;
1308
1309	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
1310	$sth->execute($user);
1311	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
1312	my $loginfailed = 1 if !defined($uid);
1313
1314	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
1315	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
1316	} else {
1317	$loginfailed = 1 if $pass ne $inpass;
1318	}
1319
1320	# nnnngggg
1321	return ($uid, $gid);
1322	} # end checkUser
1323
1324
1325	## DNSDB:: updateUser()
1326	# Update general data about user
1327	sub updateUser {
1328	my $dbh = shift;
1329
1330	##fixme: tweak calling convention so that we can update any given bit of data
1331	my $uid = shift;
1332	my $username = shift;
1333	my $group = shift;
1334	my $pass = shift;
1335	my $state = shift;
1336	my $type = shift \|\| 'u';
1337	my $fname = shift \|\| $username;
1338	my $lname = shift \|\| '';
1339	my $phone = shift \|\| ''; # not going format-check
1340
1341	my $failmsg = '';
1342
1343	# Allow transactions, and raise an exception on errors so we can catch it later.
1344	# Use local to make sure these get "reset" properly on exiting this block
1345	local $dbh->{AutoCommit} = 0;
1346	local $dbh->{RaiseError} = 1;
1347
1348	my $sth;
1349
1350	# Password can be left blank; if so we assume there's one on file.
1351	# Actual blank passwords are bad, mm'kay?
1352	if (!$pass) {
1353	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
1354	$sth->execute($uid);
1355	($pass) = $sth->fetchrow_array;
1356	} else {
1357	$pass = unix_md5_crypt($pass);
1358	}
1359
1360	eval {
1361	my $sth = $dbh->prepare(q(
1362	UPDATE users
1363	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
1364	WHERE user_id=?
1365	)
1366	);
1367	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
1368	$dbh->commit;
1369	};
1370	if ($@) {
1371	my $msg = $@;
1372	eval { $dbh->rollback; };
1373	return ('FAIL',"$failmsg: $msg");
1374	} else {
1375	return ('OK','OK');
1376	}
1377	} # end updateUser()
1378
1379
1380	## DNSDB::delUser()
1381	#
1382	sub delUser {
1383	my $dbh = shift;
1384	return ('FAIL',"Need database handle") if !$dbh;
1385	my $userid = shift;
1386	return ('FAIL',"Missing userid") if !defined($userid);
1387
1388	my $sth = $dbh->prepare("delete from users where user_id=?");
1389	$sth->execute($userid);
1390
1391	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
1392
1393	return ('OK','OK');
1394
1395	} # end delUser
1396
1397
1398	## DNSDB::userFullName()
1399	# Return a pretty string!
1400	# Takes a user_id and optional printf-ish string to indicate which pieces where:
1401	# %u for the username
1402	# %f for the first name
1403	# %l for the last name
1404	# All other text in the passed string will be left as-is.
1405	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
1406	sub userFullName {
1407	$errstr = '';
1408	my $dbh = shift;
1409	my $userid = shift;
1410	my $fullformat = shift \|\| '%f %l (%u)';
1411	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
1412	$sth->execute($userid);
1413	my ($uname,$fname,$lname) = $sth->fetchrow_array();
1414	$errstr = $DBI::errstr if !$uname;
1415
1416	$fullformat =~ s/\%u/$uname/g;
1417	$fullformat =~ s/\%f/$fname/g;
1418	$fullformat =~ s/\%l/$lname/g;
1419
1420	return $fullformat;
1421	} # end userFullName
1422
1423
1424	## DNSDB::userStatus()
1425	# Sets and/or returns a user's status
1426	# Takes a database handle, user ID and optionally a status argument
1427	# Returns undef on errors.
1428	sub userStatus {
1429	my $dbh = shift;
1430	my $id = shift;
1431	my $newstatus = shift;
1432
1433	return undef if $id !~ /^\d+$/;
1434
1435	my $sth;
1436
1437	# ooo, fun! let's see what we were passed for status
1438	if ($newstatus) {
1439	$sth = $dbh->prepare("update users set status=? where user_id=?");
1440	# ass-u-me caller knows what's going on in full
1441	if ($newstatus =~ /^[01]$/) { # only two valid for now.
1442	$sth->execute($newstatus,$id);
1443	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
1444	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
1445	}
1446	}
1447
1448	$sth = $dbh->prepare("select status from users where user_id=?");
1449	$sth->execute($id);
1450	my ($status) = $sth->fetchrow_array;
1451	return $status;
1452	} # end userStatus()
1453
1454
1455	## DNSDB::getUserData()
1456	# Get misc user data for display
1457	sub getUserData {
1458	my $dbh = shift;
1459	my $uid = shift;
1460
1461	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
1462	"FROM users WHERE user_id=?");
1463	$sth->execute($uid);
1464	return $sth->fetchrow_hashref();
1465
1466	} # end getUserData()
1467
1468
1469	## DNSDB::getSOA()
1470	# Return all suitable fields from an SOA record in separate elements of a hash
1471	# Takes a database handle, default/live flag, domain/reverse flag, and parent ID
1472	sub getSOA {
1473	$errstr = '';
1474	my $dbh = shift;
1475	my $def = shift;
1476	my $rev = shift;
1477	my $id = shift;
1478	my %ret;
1479
1480	# (ab)use distance and weight columns to store SOA data? can't for default_rev_records...
1481	# - should really attach serial to the zone parent somewhere
1482
1483	my $sql = "SELECT record_id,host,val,ttl from "._rectable($def,$rev).
1484	" WHERE "._recparent($def,$rev)." = ? AND type=$reverse_typemap{SOA}";
1485
1486	my $sth = $dbh->prepare($sql);
1487	$sth->execute($id);
1488
1489	my ($recid,$host,$val,$ttl) = $sth->fetchrow_array() or return;
1490	my ($contact,$prins) = split /:/, $host;
1491	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
1492
1493	$ret{recid} = $recid;
1494	$ret{ttl} = $ttl;
1495	# $ret{serial} = $serial; # ca't use distance for serial with default_rev_records
1496	$ret{prins} = $prins;
1497	$ret{contact} = $contact;
1498	$ret{refresh} = $refresh;
1499	$ret{retry} = $retry;
1500	$ret{expire} = $expire;
1501	$ret{minttl} = $minttl;
1502
1503	return %ret;
1504	} # end getSOA()
1505
1506
1507	## DNSDB::getRecLine()
1508	# Return all data fields for a zone record in separate elements of a hash
1509	# Takes a database handle, default/live flag, and record ID
1510	sub getRecLine {
1511	$errstr = '';
1512	my $dbh = shift;
1513	my $def = shift;
1514	my $id = shift;
1515
1516	my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl".
1517	(($def eq 'def' or $def eq 'y') ? ',group_id FROM default_' : ',domain_id FROM ').
1518	"records WHERE record_id=?";
1519	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
1520
1521	if ($dbh->err) {
1522	$errstr = $DBI::errstr;
1523	return undef;
1524	}
1525
1526	if (!$ret) {
1527	$errstr = "No such record";
1528	return undef;
1529	}
1530
1531	$ret->{parid} = (($def eq 'def' or $def eq 'y') ? $ret->{group_id} : $ret->{domain_id});
1532
1533	return $ret;
1534	}
1535
1536
1537	##fixme: should use above (getRecLine()) to get lines for below?
1538	## DNSDB::getDomRecs()
1539	# Return records for a domain
1540	# Takes a database handle, default/live flag, group/domain ID, start,
1541	# number of records, sort field, and sort order
1542	# Returns a reference to an array of hashes
1543	sub getDomRecs {
1544	$errstr = '';
1545	my $dbh = shift;
1546	my $def = shift;
1547	my $rev = shift;
1548	my $id = shift;
1549	my $nrecs = shift \|\| 'all';
1550	my $nstart = shift \|\| 0;
1551
1552	## for order, need to map input to column names
1553	my $order = shift \|\| 'host';
1554	my $direction = shift \|\| 'ASC';
1555
1556	my $filter = shift \|\| '';
1557
1558	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.ttl";
1559	$sql .= ",r.distance,r.weight,r.port" if $rev eq 'n';
1560	$sql .= " FROM "._rectable($def,$rev)." r ";
1561	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
1562	$sql .= "WHERE "._recparent($def,$rev)." = ?";
1563	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
1564	$sql .= " AND host ~* ?" if $filter;
1565	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
1566	$sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
1567
1568	my @bindvars = ($id);
1569	push @bindvars, $filter if $filter;
1570
1571	# just to be ultraparanoid about SQL injection vectors
1572	if ($nstart ne 'all') {
1573	$sql .= " LIMIT ? OFFSET ?";
1574	push @bindvars, $nrecs;
1575	push @bindvars, ($nstart*$nrecs);
1576	}
1577	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
1578	$sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
1579
1580	my @retbase;
1581	while (my $ref = $sth->fetchrow_hashref()) {
1582	push @retbase, $ref;
1583	}
1584
1585	my $ret = \@retbase;
1586	return $ret;
1587	} # end getDomRecs()
1588
1589
1590	## DNSDB::getRecCount()
1591	# Return count of non-SOA records in zone (or default records in a group)
1592	# Takes a database handle, default/live flag, reverse/forward flag, group/domain ID,
1593	# and optional filtering modifier
1594	# Returns the count
1595	sub getRecCount {
1596	my $dbh = shift;
1597	my $defrec = shift;
1598	my $revrec = shift;
1599	my $id = shift;
1600	my $filter = shift \|\| '';
1601
1602	# keep the nasties down, since we can't ?-sub this bit. :/
1603	# note this is chars allowed in DNS hostnames
1604	$filter =~ s/[^a-zA-Z0-9_.:-]//g;
1605
1606	my @bindvars = ($id);
1607	push @bindvars, $filter if $filter;
1608	my $sql = "SELECT count(*) FROM ".
1609	_rectable($defrec,$revrec).
1610	" WHERE "._recparent($defrec,$revrec)."=? ".
1611	"AND NOT type=$reverse_typemap{SOA}".
1612	($filter ? " AND host ~* ?" : '');
1613	my ($count) = $dbh->selectrow_array($sql, undef, (@bindvars) );
1614
1615	return $count;
1616
1617	} # end getRecCount()
1618
1619
1620	## DNSDB::addRec()
1621	# Add a new record to a domain or a group's default records
1622	# Takes a database handle, default/live flag, group/domain ID,
1623	# host, type, value, and TTL
1624	# Some types require additional detail: "distance" for MX and SRV,
1625	# and weight/port for SRV
1626	# Returns a status code and detail message in case of error
1627	sub addRec {
1628	$errstr = '';
1629	my $dbh = shift;
1630	my $defrec = shift;
1631	my $revrec = shift;
1632	my $id = shift; # parent (group_id for defrecs, rdns_id for reverse records,
1633	# domain_id for domain records)
1634
1635	my $host = shift;
1636	my $rectype = shift;
1637	my $val = shift;
1638	my $ttl = shift;
1639
1640	# prep for validation
1641	my $addr = NetAddr::IP->new($val);
1642	$host =~ s/\.+$//; # FQDNs ending in . are an internal detail, and really shouldn't be exposed in the UI.
1643
1644	my $domid = 0;
1645	my $revid = 0;
1646
1647	my $retcode = 'OK'; # assume everything will go OK
1648	my $retmsg = '';
1649
1650	# do simple validation first
1651	return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
1652
1653
1654	## possible contents for record types
1655	# (A/AAAA+)PTR: IP + (FQDN or bare hostname to have ADMINDOMAIN appended?)
1656	# (A/AAAA+)PTR template: IP or netblock + (fully-qualified hostname pattern or bare hostname pattern to have
1657	# ADMINDOMAIN appended?)
1658	# A/AAAA: append parent domain if not included, validate IP
1659	# NS,MX,CNAME,SRV,TXT: append parent domain if not included
1660
1661	# ickypoo. can't see a handy way to really avoid hardcoding these here... otoh, these aren't
1662	# really mutable, it's just handy to have them in a DB table for reordering
1663	# 65280 \| A+PTR
1664	# 65281 \| AAAA+PTR
1665	# 65282 \| PTR template
1666	# 65283 \| A+PTR template
1667	# 65284 \| AAAA+PTR template
1668
1669	# can only validate parenthood on IPs in live zones; group default records are likely to contain "ZONE"
1670	if ($revrec eq 'y' && $defrec eq 'n') {
1671	if ($rectype == $reverse_typemap{PTR} \|\| $rectype == 65280 \|\| $rectype == 65281) {
1672	return ('FAIL', "IP or IP fragment $val is not within ".revName($dbh, $id))
1673	unless _ipparent($dbh, $defrec, $revrec, $val, $id, \$addr);
1674	$revid = $id;
1675	}
1676	if ($rectype == 65280 \|\| $rectype == 65281) {
1677	# check host to see if it's managed here. coerce down to PTR if not.
1678	# Split $host and work our way up the hierarchy until we run out of parts to add, or we find a match
1679	# Note we do not do '$checkdom = shift @hostbits' right away, since we want to be able to support
1680	# private TLDs.
1681	my @hostbits = reverse(split(/\./, $host));
1682	my $checkdom = '';
1683	my $sth = $dbh->prepare("SELECT count(*),domain_id FROM domains WHERE domain = ? GROUP BY domain_id");
1684	foreach (@hostbits) {
1685	$checkdom = "$_.$checkdom";
1686	$checkdom =~ s/\.$//;
1687	$sth->execute($checkdom);
1688	my ($found, $parid) = $sth->fetchrow_array;
1689	if ($found) {
1690	$domid = $parid;
1691	last;
1692	}
1693	}
1694	if (!$domid) {
1695	# no domain found; set the return code and message, then coerce type down to PTR
1696	$retcode = 'WARN';
1697	$retmsg = "Record added as PTR instead of $typemap{$rectype}; domain not found for $host";
1698	$rectype = $reverse_typemap{PTR};
1699	}
1700	}
1701	# types 65282, 65283, 65284 left
1702	} elsif ($revrec eq 'n' && $defrec eq 'n') {
1703	# Forward zone. Validate IPs where we know they MUST be correct,
1704	# check to see if we manage the reverse zone on A(AAA)+PTR,
1705	# append the domain on hostnames without it.
1706	if ($rectype == $reverse_typemap{A} \|\| $rectype == 65280) {
1707	return ('FAIL',$typemap{$rectype}." record must be a valid IPv4 address")
1708	unless $addr && !$addr->{isv6};
1709	$val = $addr->addr;
1710	}
1711	if ($rectype == $reverse_typemap{AAAA} \|\| $rectype == 65281) {
1712	return ('FAIL',$typemap{$rectype}." record must be a valid IPv6 address")
1713	unless $addr && $addr->{isv6};
1714	$val = $addr->addr;
1715	}
1716	if ($rectype == 65280 \|\| $rectype == 65281) {
1717	# The ORDER BY here makes sure we pick the smallest revzone parent. Just In Case.
1718	($revid) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?".
1719	" ORDER BY masklen(revnet) DESC", undef, ($val));
1720	if (!$revid) {
1721	$retcode = 'WARN';
1722	$retmsg = "Record added as ".($rectype == 65280 ? 'A' : 'AAAA')." instead of $typemap{$rectype}; ".
1723	"reverse zone not found for $val";
1724	$rectype = $reverse_typemap{A} if $rectype == 65280;
1725	$rectype = $reverse_typemap{AAAA} if $rectype == 65281;
1726	$revid = 0; # Just In Case
1727	}
1728	}
1729	my $parstr = domainName($dbh,$id);
1730	$host .= ".$parstr" if $host !~ /$parstr$/;
1731	}
1732
1733	# Validate IPs in MX, NS, SRV records?
1734	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
1735	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
1736	# if ($val =~ /^\s[\da-f:.]+\s$/) {
1737	# return ('FAIL',"$val is not a valid IP address") if !$addr;
1738	# }
1739	# }
1740
1741	# basic fields: immediate parent ID, host, type, val, ttl
1742	my $fields = _recparent($defrec,$revrec).",host,type,val,ttl";
1743	my $vallen = "?,?,?,?,?";
1744	my @vallist = ($id,$host,$rectype,$val,$ttl);
1745
1746	if ($defrec eq 'n' && ($rectype == 65280 \|\| $rectype == 65281)) {
1747	$fields .= ",".($revrec eq 'n' ? 'rdns_id' : 'domain_id');
1748	$vallen .= ",?";
1749	push @vallist, ($revrec eq 'n' ? $revid : $domid);
1750	}
1751
1752	# MX and SRV specials
1753	my $dist;
1754	if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
1755	$dist = shift;
1756	return ('FAIL',"Distance is required for $typemap{$rectype} records") unless defined($dist);
1757	$dist =~ s/\s*//g;
1758	return ('FAIL',"Distance is required, and must be numeric") unless $dist =~ /^\d+$/;
1759	$fields .= ",distance";
1760	$vallen .= ",?";
1761	push @vallist, $dist;
1762	}
1763	my $weight;
1764	my $port;
1765	if ($rectype == $reverse_typemap{SRV}) {
1766	# check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
1767	# it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
1768	return ('FAIL',"SRV records must begin with _service._protocol [$host]")
1769	unless $host =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
1770	$weight = shift;
1771	$port = shift;
1772	return ('FAIL',"Port and weight are required for SRV records") unless defined($weight) && defined($port);
1773	$weight =~ s/\s*//g;
1774	$port =~ s/\s*//g;
1775	return ('FAIL',"Port and weight are required, and must be numeric")
1776	unless $weight =~ /^\d+$/ && $port =~ /^\d+$/;
1777	$fields .= ",weight,port";
1778	$vallen .= ",?,?";
1779	push @vallist, ($weight,$port);
1780	}
1781
1782	# Allow transactions, and raise an exception on errors so we can catch it later.
1783	# Use local to make sure these get "reset" properly on exiting this block
1784	local $dbh->{AutoCommit} = 0;
1785	local $dbh->{RaiseError} = 1;
1786
1787	eval {
1788	$dbh->do("INSERT INTO ".($defrec eq 'y' ? 'default_' : '')."records ($fields) VALUES ($vallen)",
1789	undef, @vallist);
1790	$dbh->commit;
1791	};
1792	if ($@) {
1793	my $msg = $@;
1794	eval { $dbh->rollback; };
1795	return ('FAIL',$msg);
1796	}
1797
1798	return ($retcode, $retmsg);
1799
1800	} # end addRec()
1801
1802
1803	## DNSDB::updateRec()
1804	# Update a record
1805	sub updateRec {
1806	$errstr = '';
1807
1808	my $dbh = shift;
1809	my $defrec = shift;
1810	my $id = shift;
1811
1812	# all records have these
1813	my $host = shift;
1814	my $type = shift;
1815	my $val = shift;
1816	my $ttl = shift;
1817
1818	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
1819
1820	# only MX and SRV will use these
1821	my $dist = 0;
1822	my $weight = 0;
1823	my $port = 0;
1824
1825	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
1826	$dist = shift;
1827	$dist =~ s/\s+//g;
1828	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
1829	return ('FAIL', "Distance must be numeric") unless $dist =~ /^\d+$/;
1830	if ($type == $reverse_typemap{SRV}) {
1831	$weight = shift;
1832	$weight =~ s/\s+//g;
1833	return ('FAIL',"SRV requires weight") if !defined($weight);
1834	return ('FAIL',"Weight must be numeric") unless $weight =~ /^\d+$/;
1835	$port = shift;
1836	$port =~ s/\s+//g;
1837	return ('FAIL',"SRV requires port") if !defined($port);
1838	return ('FAIL',"Port must be numeric") unless $port =~ /^\d+$/;
1839	}
1840	}
1841
1842	# Enforce IP addresses on A and AAAA types
1843	my $addr = NetAddr::IP->new($val);
1844	if ($type == $reverse_typemap{A}) {
1845	return ('FAIL',$typemap{$type}." record must be a valid IPv4 address")
1846	unless $addr && !$addr->{isv6};
1847	}
1848	if ($type == $reverse_typemap{AAAA}) {
1849	return ('FAIL',$typemap{$type}." record must be a valid IPv6 address")
1850	unless $addr && $addr->{isv6};
1851	}
1852
1853	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
1854	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
1855	# if ($val =~ /^\s[\da-f:.]+\s$/) {
1856	# return ('FAIL',"$val is not a valid IP address") if !$addr;
1857	# }
1858	# }
1859
1860	local $dbh->{AutoCommit} = 0;
1861	local $dbh->{RaiseError} = 1;
1862
1863	eval {
1864	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
1865	"SET host=?,val=?,type=?,ttl=?,distance=?,weight=?,port=? ".
1866	"WHERE record_id=?", undef, ($host, $val, $type, $ttl, $dist, $weight, $port, $id) );
1867	$dbh->commit;
1868	};
1869	if ($@) {
1870	my $msg = $@;
1871	$dbh->rollback;
1872	return ('FAIL', $msg);
1873	}
1874
1875	return ('OK','OK');
1876	} # end updateRec()
1877
1878
1879	## DNSDB::delRec()
1880	# Delete a record.
1881	sub delRec {
1882	$errstr = '';
1883	my $dbh = shift;
1884	my $defrec = shift;
1885	my $id = shift;
1886
1887	my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
1888	$sth->execute($id);
1889
1890	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
1891
1892	return ('OK','OK');
1893	} # end delRec()
1894
1895
1896	# Reference hashes.
1897	my %par_tbl = (
1898	group => 'groups',
1899	user => 'users',
1900	defrec => 'default_records',
1901	domain => 'domains',
1902	record => 'records'
1903	);
1904	my %id_col = (
1905	group => 'group_id',
1906	user => 'user_id',
1907	defrec => 'record_id',
1908	domain => 'domain_id',
1909	record => 'record_id'
1910	);
1911	my %par_col = (
1912	group => 'parent_group_id',
1913	user => 'group_id',
1914	defrec => 'group_id',
1915	domain => 'group_id',
1916	record => 'domain_id'
1917	);
1918	my %par_type = (
1919	group => 'group',
1920	user => 'group',
1921	defrec => 'group',
1922	domain => 'group',
1923	record => 'domain'
1924	);
1925
1926
1927	## DNSDB::getTypelist()
1928	# Get a list of record types for various UI dropdowns
1929	# Takes database handle, forward/reverse/lookup flag, and optional "tag as selected" indicator (defaults to A)
1930	# Returns an arrayref to list of hashrefs perfect for HTML::Template
1931	sub getTypelist {
1932	my $dbh = shift;
1933	my $recgroup = shift;
1934	my $type = shift \|\| $reverse_typemap{A};
1935
1936	# also accepting $webvar{revrec}!
1937	$recgroup = 'f' if $recgroup eq 'n';
1938	$recgroup = 'r' if $recgroup eq 'y';
1939
1940	my $sql = "SELECT val,name FROM rectypes WHERE ";
1941	if ($recgroup eq 'r') {
1942	# reverse zone types
1943	$sql .= "stdflag=2 OR stdflag=3";
1944	} elsif ($recgroup eq 'l') {
1945	# DNS lookup types. Note we avoid our custom types >= 65280, since those are entirely internal.
1946	$sql .= "(stdflag=1 OR stdflag=2 OR stdflag=3) AND val < 65280";
1947	} else {
1948	# default; forward zone types. technically $type eq 'f' but not worth the error message.
1949	$sql .= "stdflag=1 OR stdflag=2";
1950	}
1951	$sql .= " ORDER BY listorder";
1952
1953	my $sth = $dbh->prepare($sql);
1954	$sth->execute;
1955	my @typelist;
1956	while (my ($rval,$rname) = $sth->fetchrow_array()) {
1957	my %row = ( recval => $rval, recname => $rname );
1958	$row{tselect} = 1 if $rval == $type;
1959	push @typelist, \%row;
1960	}
1961
1962	# Add SOA on lookups since it's not listed in other dropdowns.
1963	if ($recgroup eq 'l') {
1964	my %row = ( recval => $reverse_typemap{SOA}, recname => 'SOA' );
1965	$row{tselect} = 1 if $reverse_typemap{SOA} == $type;
1966	push @typelist, \%row;
1967	}
1968
1969	return \@typelist;
1970	} # end getTypelist()
1971
1972
1973	## DNSDB::getParents()
1974	# Find out which entities are parent to the requested id
1975	# Returns arrayref containing hash pairs of id/type
1976	sub getParents {
1977	my $dbh = shift;
1978	my $id = shift;
1979	my $type = shift;
1980	my $depth = shift \|\| 'all'; # valid values: 'all', 'immed', <int> (stop at this group ID)
1981
1982	my @parlist;
1983
1984	while (1) {
1985	my $result = $dbh->selectrow_hashref("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
1986	undef, ($id) );
1987	my %tmp = ($result->{$par_col{$type}} => $par_type{$type});
1988	unshift @parlist, \%tmp;
1989	last if $result->{$par_col{$type}} == 1; # group 1 is its own parent
1990	$id = $result->{$par_col{$type}};
1991	$type = $par_type{$type};
1992	}
1993
1994	return \@parlist;
1995
1996	} # end getParents()
1997
1998
1999	## DNSDB::isParent()
2000	# Returns true if $id1 is a parent of $id2, false otherwise
2001	sub isParent {
2002	my $dbh = shift;
2003	my $id1 = shift;
2004	my $type1 = shift;
2005	my $id2 = shift;
2006	my $type2 = shift;
2007	##todo: immediate, secondary, full (default)
2008
2009	# Return false on invalid types
2010	return 0 if !grep /^$type1$/, ('record','defrec','user','domain','group');
2011	return 0 if !grep /^$type2$/, ('record','defrec','user','domain','group');
2012
2013	# Return false on impossible relations
2014	return 0 if $type1 eq 'record'; # nothing may be a child of a record
2015	return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
2016	return 0 if $type1 eq 'user'; # nothing may be child of a user
2017	return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
2018
2019	# ennnhhhh.... if we're passed an id of 0, it will never be found. usual
2020	# case would be the UI creating a new <thing>, and so we don't have an ID for
2021	# <thing> to look up yet. in that case the UI should check the parent as well.
2022	# argument for returning 1 is
2023	return 0 if $id1 == 0; # nothing can have a parent id of 0
2024	return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
2025
2026	# group 1 is the ultimate root parent
2027	return 1 if $type1 eq 'group' && $id1 == 1;
2028
2029	# groups are always (a) parent of themselves
2030	return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
2031
2032	# almost the same loop as getParents() above
2033	my $id = $id2;
2034	my $type = $type2;
2035	my $foundparent = 0;
2036
2037	my $limiter = 0;
2038	while (1) {
2039	my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
2040	my $result = $dbh->selectrow_hashref($sql,
2041	undef, ($id) );
2042	if (!$result) {
2043	$limiter++;
2044	##fixme: how often will this happen on a live site?
2045	warn "no results looking for $sql with id $id (depth $limiter)\n";
2046	last;
2047	}
2048	if ($result && $result->{$par_col{$type}} == $id1) {
2049	$foundparent = 1;
2050	last;
2051	} else {
2052	##fixme: do we care about trying to return a "no such record/domain/user/group" error?
2053	warn $dbh->errstr." $sql, $id" if $dbh->errstr;
2054	}
2055	# group 1 is its own parent. need this here more to break strange loops than for detecting a parent
2056	last if $result->{$par_col{$type}} == 1;
2057	$id = $result->{$par_col{$type}};
2058	$type = $par_type{$type};
2059	}
2060
2061	return $foundparent;
2062	} # end isParent()
2063
2064
2065	## DNSDB::domStatus()
2066	# Sets and/or returns a domain's status
2067	# Takes a database handle, domain ID and optionally a status argument
2068	# Returns undef on errors.
2069	sub domStatus {
2070	my $dbh = shift;
2071	my $id = shift;
2072	my $newstatus = shift;
2073
2074	return undef if $id !~ /^\d+$/;
2075
2076	my $sth;
2077
2078	# ooo, fun! let's see what we were passed for status
2079	if ($newstatus) {
2080	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
2081	# ass-u-me caller knows what's going on in full
2082	if ($newstatus =~ /^[01]$/) { # only two valid for now.
2083	$sth->execute($newstatus,$id);
2084	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
2085	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
2086	}
2087	}
2088
2089	$sth = $dbh->prepare("select status from domains where domain_id=?");
2090	$sth->execute($id);
2091	my ($status) = $sth->fetchrow_array;
2092	return $status;
2093	} # end domStatus()
2094
2095
2096	## DNSDB::importAXFR
2097	# Import a domain via AXFR
2098	# Takes AXFR host, domain to transfer, group to put the domain in,
2099	# and optionally:
2100	# - active/inactive state flag (defaults to active)
2101	# - overwrite-SOA flag (defaults to off)
2102	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
2103	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
2104	# if status is OK, but WARN includes conditions that are not fatal but should
2105	# really be reported.
2106	sub importAXFR {
2107	my $dbh = shift;
2108	my $ifrom_in = shift;
2109	my $domain = shift;
2110	my $group = shift;
2111	my $status = shift \|\| 1;
2112	my $rwsoa = shift \|\| 0;
2113	my $rwns = shift \|\| 0;
2114
2115	##fixme: add mode to delete&replace, merge+overwrite, merge new?
2116
2117	my $nrecs = 0;
2118	my $soaflag = 0;
2119	my $nsflag = 0;
2120	my $warnmsg = '';
2121	my $ifrom;
2122
2123	# choke on possible bad setting in ifrom
2124	# IPv4 and v6, and valid hostnames!
2125	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
2126	return ('FAIL', "Bad AXFR source host $ifrom")
2127	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
2128
2129	# Allow transactions, and raise an exception on errors so we can catch it later.
2130	# Use local to make sure these get "reset" properly on exiting this block
2131	local $dbh->{AutoCommit} = 0;
2132	local $dbh->{RaiseError} = 1;
2133
2134	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
2135	my $dom_id;
2136
2137	# quick check to start to see if we've already got one
2138	$sth->execute($domain);
2139	($dom_id) = $sth->fetchrow_array;
2140
2141	return ('FAIL', "Domain already exists") if $dom_id;
2142
2143	eval {
2144	# can't do this, can't nest transactions. sigh.
2145	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
2146
2147	##fixme: serial
2148	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
2149	$sth->execute($domain,$group,$status);
2150
2151	## bizarre DBI<->Net::DNS interaction bug:
2152	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
2153	## fixed, apparently I was doing something odd, but not certain what it was that
2154	## caused a commit instead of barfing
2155
2156	# get domain id so we can do the records
2157	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
2158	$sth->execute($domain);
2159	($dom_id) = $sth->fetchrow_array();
2160
2161	my $res = Net::DNS::Resolver->new;
2162	$res->nameservers($ifrom);
2163	$res->axfr_start($domain)
2164	or die "Couldn't begin AXFR\n";
2165
2166	while (my $rr = $res->axfr_next()) {
2167	my $type = $rr->type;
2168
2169	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
2170	my $vallen = "?,?,?,?,?";
2171
2172	$soaflag = 1 if $type eq 'SOA';
2173	$nsflag = 1 if $type eq 'NS';
2174
2175	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
2176
2177	# "Primary" types:
2178	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
2179	# maybe KEY
2180
2181	# nasty big ugly case-like thing here, since we have to do some different
2182	# processing depending on the record. le sigh.
2183
2184	##fixme: what record types other than TXT can/will have >255-byte payloads?
2185
2186	if ($type eq 'A') {
2187	push @vallist, $rr->address;
2188	} elsif ($type eq 'NS') {
2189	# hmm. should we warn here if subdomain NS'es are left alone?
2190	next if ($rwns && ($rr->name eq $domain));
2191	push @vallist, $rr->nsdname;
2192	$nsflag = 1;
2193	} elsif ($type eq 'CNAME') {
2194	push @vallist, $rr->cname;
2195	} elsif ($type eq 'SOA') {
2196	next if $rwsoa;
2197	$vallist[1] = $rr->mname.":".$rr->rname;
2198	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
2199	$soaflag = 1;
2200	} elsif ($type eq 'PTR') {
2201	push @vallist, $rr->ptrdname;
2202	# hmm. PTR records should not be in forward zones.
2203	} elsif ($type eq 'MX') {
2204	$sql .= ",distance";
2205	$vallen .= ",?";
2206	push @vallist, $rr->exchange;
2207	push @vallist, $rr->preference;
2208	} elsif ($type eq 'TXT') {
2209	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
2210	## but don't really seem enthusiastic about it.
2211	my $rrdata = $rr->txtdata;
2212	push @vallist, $rrdata;
2213	} elsif ($type eq 'SPF') {
2214	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
2215	my $rrdata = $rr->txtdata;
2216	push @vallist, $rrdata;
2217	} elsif ($type eq 'AAAA') {
2218	push @vallist, $rr->address;
2219	} elsif ($type eq 'SRV') {
2220	$sql .= ",distance,weight,port" if $type eq 'SRV';
2221	$vallen .= ",?,?,?" if $type eq 'SRV';
2222	push @vallist, $rr->target;
2223	push @vallist, $rr->priority;
2224	push @vallist, $rr->weight;
2225	push @vallist, $rr->port;
2226	} elsif ($type eq 'KEY') {
2227	# we don't actually know what to do with these...
2228	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
2229	} else {
2230	my $rrdata = $rr->rdatastr;
2231	push @vallist, $rrdata;
2232	# Finding a different record type is not fatal.... just problematic.
2233	# We may not be able to export it correctly.
2234	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
2235	}
2236
2237	# BIND supports:
2238	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
2239	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
2240	# ... if one can ever find the right magic to format them correctly
2241
2242	# Net::DNS supports:
2243	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
2244	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
2245	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
2246
2247	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
2248	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
2249
2250	$nrecs++;
2251
2252	} # while axfr_next
2253
2254	# Overwrite SOA record
2255	if ($rwsoa) {
2256	$soaflag = 1;
2257	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
2258	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
2259	$sthgetsoa->execute($group,$reverse_typemap{SOA});
2260	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
2261	$host =~ s/DOMAIN/$domain/g;
2262	$val =~ s/DOMAIN/$domain/g;
2263	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
2264	}
2265	}
2266
2267	# Overwrite NS records
2268	if ($rwns) {
2269	$nsflag = 1;
2270	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
2271	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
2272	$sthgetns->execute($group,$reverse_typemap{NS});
2273	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
2274	$host =~ s/DOMAIN/$domain/g;
2275	$val =~ s/DOMAIN/$domain/g;
2276	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
2277	}
2278	}
2279
2280	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
2281	die "Bad zone: No SOA record!\n" if !$soaflag;
2282	die "Bad zone: No NS records!\n" if !$nsflag;
2283
2284	$dbh->commit;
2285
2286	};
2287
2288	if ($@) {
2289	my $msg = $@;
2290	eval { $dbh->rollback; };
2291	return ('FAIL',$msg." $warnmsg");
2292	} else {
2293	return ('WARN', $warnmsg) if $warnmsg;
2294	return ('OK',"Imported OK");
2295	}
2296
2297	# it should be impossible to get here.
2298	return ('WARN',"OOOK!");
2299	} # end importAXFR()
2300
2301
2302	## DNSDB::export()
2303	# Export the DNS database, or a part of it
2304	# Takes database handle, export type, optional arguments depending on type
2305	# Writes zone data to targets as appropriate for type
2306	sub export {
2307	my $dbh = shift;
2308	my $target = shift;
2309
2310	if ($target eq 'tiny') {
2311	__export_tiny($dbh,@_);
2312	}
2313	# elsif ($target eq 'foo') {
2314	# __export_foo($dbh,@_);
2315	#}
2316	# etc
2317
2318	} # end export()
2319
2320
2321	## DNSDB::__export_tiny
2322	# Internal sub to implement tinyDNS (compatible) export
2323	# Takes database handle, filehandle to write export to, optional argument(s)
2324	# to determine which data gets exported
2325	sub __export_tiny {
2326	my $dbh = shift;
2327	my $datafile = shift;
2328
2329	##fixme: slurp up further options to specify particular zone(s) to export
2330
2331	## Convert a bare number into an octal-coded pair of octets.
2332	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
2333	sub octalize {
2334	my $tmp = shift;
2335	my $srctype = shift \|\| 'h'; # default assumes hex string
2336	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
2337	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
2338	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
2339	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
2340	}
2341
2342	##fixme: fail if $datafile isn't an open, writable file
2343
2344	# easy case - export all evarything
2345	# not-so-easy case - export item(s) specified
2346	# todo: figure out what kind of list we use to export items
2347
2348	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
2349	my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl ".
2350	"FROM records WHERE domain_id=?");
2351	$domsth->execute();
2352	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
2353	$recsth->execute($domid);
2354	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $recsth->fetchrow_array) {
2355	##fixme: need to store location in the db, and retrieve it here.
2356	# temporarily hardcoded to empty so we can include it further down.
2357	my $loc = '';
2358
2359	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
2360	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
2361	# timestamps are TAI64
2362	# ~~ 2^62 + time()
2363	my $stamp = '';
2364
2365	# raw packet in unknown format: first byte indicates length
2366	# of remaining data, allows up to 255 raw bytes
2367
2368	##fixme? append . to all host/val hostnames
2369	if ($typemap{$type} eq 'SOA') {
2370
2371	# host contains pri-ns:responsible
2372	# val is abused to contain refresh:retry:expire:minttl
2373	##fixme: "manual" serial vs tinydns-autoserial
2374	# let's be explicit about abusing $host and $val
2375	my ($email, $primary) = (split /:/, $host)[0,1];
2376	my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
2377	print $datafile "Z$dom:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
2378
2379	} elsif ($typemap{$type} eq 'A') {
2380
2381	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
2382
2383	} elsif ($typemap{$type} eq 'NS') {
2384
2385	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
2386
2387	} elsif ($typemap{$type} eq 'AAAA') {
2388
2389	print $datafile ":$host:28:";
2390	my $altgrp = 0;
2391	my @altconv;
2392	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
2393	foreach (split /:/, $val) {
2394	if (/^$/) {
2395	# flag blank entry; this is a series of 0's of (currently) unknown length
2396	$altconv[$altgrp++] = 's';
2397	} else {
2398	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
2399	$altconv[$altgrp++] = octalize($_)
2400	}
2401	}
2402	foreach my $octet (@altconv) {
2403	# if not 's', output
2404	print $datafile $octet unless $octet =~ /^s$/;
2405	# if 's', output (9-array length)x literal '\000\000'
2406	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
2407	}
2408	print $datafile ":$ttl:$stamp:$loc\n";
2409
2410	} elsif ($typemap{$type} eq 'MX') {
2411
2412	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
2413
2414	} elsif ($typemap{$type} eq 'TXT') {
2415
2416	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
2417	$val =~ s/:/\\072/g; # may need to replace other symbols
2418	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
2419
2420	# by-hand TXT
2421	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
2422	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
2423	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
2424
2425	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
2426	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
2427
2428	# very long TXT record as brought in by axfr-get
2429	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
2430	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
2431	#:longtxt.deepnet.cx:16:
2432	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
2433	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
2434	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
2435	#:3600
2436
2437	} elsif ($typemap{$type} eq 'CNAME') {
2438
2439	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
2440
2441	} elsif ($typemap{$type} eq 'SRV') {
2442
2443	# data is two-byte values for priority, weight, port, in that order,
2444	# followed by length/string data
2445
2446	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
2447
2448	$val .= '.' if $val !~ /\.$/;
2449	foreach (split /\./, $val) {
2450	printf $datafile "\\%0.3o%s", length($_), $_;
2451	}
2452	print $datafile "\\000:$ttl:$stamp:$loc\n";
2453
2454	} elsif ($typemap{$type} eq 'RP') {
2455
2456	# RP consists of two mostly free-form strings.
2457	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
2458	# The second is the "hostname" of a TXT record with more info.
2459	print $datafile ":$host:17:";
2460	my ($who,$what) = split /\s/, $val;
2461	foreach (split /\./, $who) {
2462	printf $datafile "\\%0.3o%s", length($_), $_;
2463	}
2464	print $datafile '\000';
2465	foreach (split /\./, $what) {
2466	printf $datafile "\\%0.3o%s", length($_), $_;
2467	}
2468	print $datafile "\\000:$ttl:$stamp:$loc\n";
2469
2470	} elsif ($typemap{$type} eq 'PTR') {
2471
2472	# must handle both IPv4 and IPv6
2473	##work
2474	# data should already be in suitable reverse order.
2475	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
2476
2477	} else {
2478	# raw record. we don't know what's in here, so we ASS-U-ME the user has
2479	# put it in correctly, since either the user is messing directly with the
2480	# database, or the record was imported via AXFR
2481	# <split by char>
2482	# convert anything not a-zA-Z0-9.- to octal coding
2483
2484	##fixme: add flag to export "unknown" record types - note we'll probably end up
2485	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
2486	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
2487
2488	} # record type if-else
2489
2490	} # while ($recsth)
2491	} # while ($domsth)
2492	} # end __export_tiny()
2493
2494
2495	## DNSDB::mailNotify()
2496	# Sends notification mail to recipients regarding an IPDB operation
2497	sub mailNotify {
2498	my $dbh = shift;
2499	my ($subj,$message) = @_;
2500
2501	return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
2502
2503	my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
2504
2505	my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
2506
2507	$mailer->mail($mailsender);
2508	$mailer->to($config{mailnotify});
2509	$mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
2510	"To: <$config{mailnotify}>\n",
2511	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
2512	"Subject: $subj\n",
2513	"X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
2514	"Organization: $config{orgname}\n",
2515	"\n$message\n");
2516	$mailer->quit;
2517	}
2518
2519	# shut Perl up
2520	1;

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