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source: trunk/DNSDB.pm@ 114

Last change on this file since 114 was 112, checked in by Kris Deugau, 13 years ago

/trunk

Mostly complete functionality of bulk group move

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File size: 56.0 KB

Rev	Line
[2]	1	# dns/trunk/DNSDB.pm
	2	# Abstraction functions for DNS administration
	3	###
	4	# SVN revision info
	5	# $Date: 2011-08-02 22:54:07 +0000 (Tue, 02 Aug 2011) $
	6	# SVN revision $Rev: 112 $
	7	# Last update by $Author: kdeugau $
	8	###
	9	# Copyright (C) 2008 - Kris Deugau <kdeugau@deepnet.cx>
	10
	11	package DNSDB;
	12
	13	use strict;
	14	use warnings;
	15	use Exporter;
	16	use DBI;
[33]	17	use Net::DNS;
[65]	18	use Crypt::PasswdMD5;
[2]	19	#use Net::SMTP;
	20	#use NetAddr::IP qw( Compact );
	21	#use POSIX;
	22	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
	23
	24	$VERSION = 0.1;
	25	@ISA = qw(Exporter);
	26	@EXPORT_OK = qw(
[67]	27	&initGlobals
	28	&initPermissions &getPermissions &changePermissions &comparePermissions
[112]	29	&changeGroup
[65]	30	&connectDB &finish
[91]	31	&addDomain &delDomain &domainName &domainID
[22]	32	&addGroup &delGroup &getChildren &groupName
[83]	33	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[91]	34	&getSOA &getRecLine &getDomRecs &getRecCount
[22]	35	&addRec &updateRec &delRec
[34]	36	&domStatus &importAXFR
[103]	37	&export
[2]	38	%typemap %reverse_typemap
[66]	39	%permissions @permtypes $permlist
[2]	40	);
	41
	42	@EXPORT = (); # Export nothing by default.
	43	%EXPORT_TAGS = ( ALL => [qw(
[67]	44	&initGlobals
	45	&initPermissions &getPermissions &changePermissions &comparePermissions
[112]	46	&changeGroup
[65]	47	&connectDB &finish
[91]	48	&addDomain &delDomain &domainName &domainID
[22]	49	&addGroup &delGroup &getChildren &groupName
[83]	50	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[91]	51	&getSOA &getRecLine &getDomRecs &getRecCount
[22]	52	&addRec &updateRec &delRec
[34]	53	&domStatus &importAXFR
[103]	54	&export
[2]	55	%typemap %reverse_typemap
[66]	56	%permissions @permtypes $permlist
[2]	57	)]
	58	);
	59
	60	our $group = 1;
	61	our $errstr = '';
	62
	63	# Halfway sane defaults for SOA, TTL, etc.
[101]	64	# serial defaults to 0 for convenience.
	65	# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
[2]	66	our %def = qw (
	67	contact hostmaster.DOMAIN
	68	prins ns1.myserver.com
[101]	69	serial 0
[2]	70	soattl 86400
	71	refresh 10800
	72	retry 3600
	73	expire 604800
	74	minttl 10800
	75	ttl 10800
	76	);
	77
[66]	78	# Arguably defined wholly in the db, but little reason to change without supporting code changes
	79	our @permtypes = qw (
	80	group_edit group_create group_delete
	81	user_edit user_create user_delete
	82	domain_edit domain_create domain_delete
	83	record_edit record_create record_delete
	84	self_edit admin
	85	);
	86	our $permlist = join(',',@permtypes);
	87
[2]	88	# DNS record type map and reverse map.
	89	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
	90	our %typemap;
	91	our %reverse_typemap;
	92
[65]	93	our %permissions;
[55]	94
[2]	95	##
	96	## Initialization and cleanup subs
	97	##
	98
[55]	99
[2]	100	## DNSDB::connectDB()
	101	# Creates connection to DNS database.
	102	# Requires the database name, username, and password.
	103	# Returns a handle to the db.
	104	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	105	# right changes.
	106	sub connectDB {
	107	$errstr = '';
[15]	108	my $dbname = shift;
	109	my $user = shift;
	110	my $pass = shift;
[2]	111	my $dbh;
	112	my $DSN = "DBI:Pg:dbname=$dbname";
	113
	114	my $host = shift;
	115	$DSN .= ";host=$host" if $host;
	116
	117	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
	118	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	119	$dbh = DBI->connect($DSN, $user, $pass, {
	120	AutoCommit => 1,
	121	PrintError => 0
	122	})
	123	or return (undef, $DBI::errstr) if(!$dbh);
	124
	125	# Return here if we can't select. Note that this indicates a
	126	# problem executing the select.
	127	my $sth = $dbh->prepare("select group_id from groups limit 1");
	128	$sth->execute();
	129	return (undef,$DBI::errstr) if ($sth->err);
	130
	131	# See if the select returned anything (or null data). This should
	132	# succeed if the select executed, but...
	133	$sth->fetchrow();
	134	return (undef,$DBI::errstr) if ($sth->err);
	135
	136	$sth->finish;
	137
	138	# If we get here, we should be OK.
	139	return ($dbh,"DB connection OK");
	140	} # end connectDB
	141
	142
	143	## DNSDB::finish()
	144	# Cleans up after database handles and so on.
	145	# Requires a database handle
	146	sub finish {
	147	my $dbh = $_[0];
	148	$dbh->disconnect;
	149	} # end finish
	150
	151
	152	## DNSDB::initGlobals()
	153	# Initialize global variables
	154	# NB: this does NOT include web-specific session variables!
	155	# Requires a database handle
	156	sub initGlobals {
	157	my $dbh = shift;
	158
	159	# load system-wide site defaults and things from config file
[29]	160	if (open SYSDEFAULTS, "</etc/dnsdb.conf") {
[2]	161	##fixme - error check!
[29]	162	while (<SYSDEFAULTS>) {
	163	next if /^\s*#/;
	164	$def{contact} = $1 if /contact ?= ?([a-z0-9_.-]+)/i;
	165	$def{prins} = $1 if /prins ?= ?([a-z0-9_.-]+)/i;
	166	$def{soattl} = $1 if /soattl ?= ?([a-z0-9_.-]+)/i;
	167	$def{refresh} = $1 if /refresh ?= ?([a-z0-9_.-]+)/i;
	168	$def{retry} = $1 if /retry ?= ?([a-z0-9_.-]+)/i;
	169	$def{expire} = $1 if /expire ?= ?([a-z0-9_.-]+)/i;
	170	$def{minttl} = $1 if /minttl ?= ?([a-z0-9_.-]+)/i;
	171	$def{ttl} = $1 if /ttl ?= ?([a-z0-9_.-]+)/i;
[2]	172	##fixme? load DB user/pass from config file?
[29]	173	}
[2]	174	}
	175	# load from database
	176	my $sth = $dbh->prepare("select val,name from rectypes");
	177	$sth->execute;
	178	while (my ($recval,$recname) = $sth->fetchrow_array()) {
	179	$typemap{$recval} = $recname;
	180	$reverse_typemap{$recname} = $recval;
	181	}
	182	} # end initGlobals
	183
	184
[65]	185	## DNSDB::initPermissions()
	186	# Set up permissions global
	187	# Takes database handle and UID
	188	sub initPermissions {
	189	my $dbh = shift;
	190	my $uid = shift;
	191
	192	# %permissions = $(getPermissions($dbh,'user',$uid));
	193	getPermissions($dbh, 'user', $uid, \%permissions);
	194
	195	} # end initPermissions()
	196
	197
	198	## DNSDB::getPermissions()
	199	# Get permissions from DB
	200	# Requires DB handle, group or user flag, ID, and hashref.
	201	sub getPermissions {
	202	my $dbh = shift;
	203	my $type = shift;
	204	my $id = shift;
	205	my $hash = shift;
	206
	207	my $sql = qq(
	208	SELECT
	209	p.admin,p.self_edit,
	210	p.group_create,p.group_edit,p.group_delete,
	211	p.user_create,p.user_edit,p.user_delete,
	212	p.domain_create,p.domain_edit,p.domain_delete,
	213	p.record_create,p.record_edit,p.record_delete
	214	FROM permissions p
	215	);
	216	if ($type eq 'group') {
	217	$sql .= qq(
	218	JOIN groups g ON g.permission_id=p.permission_id
	219	WHERE g.group_id=?
	220	);
	221	} else {
	222	$sql .= qq(
	223	JOIN users u ON u.permission_id=p.permission_id
	224	WHERE u.user_id=?
	225	);
	226	}
	227
	228	my $sth = $dbh->prepare($sql);
	229
	230	$sth->execute($id) or die "argh: ".$sth->errstr;
	231
	232	# my $permref = $sth->fetchrow_hashref;
	233	# return $permref;
	234	# $hash = $permref;
	235	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
	236	($hash->{admin},$hash->{self_edit},
	237	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
	238	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
	239	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
	240	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
	241	= $sth->fetchrow_array;
	242
	243	} # end getPermissions()
	244
	245
	246	## DNSDB::changePermissions()
	247	# Update an ACL entry
	248	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
	249	sub changePermissions {
	250	my $dbh = shift;
	251	my $type = shift;
	252	my $id = shift;
	253	my $newperms = shift;
[87]	254	my $inherit = shift \|\| 0;
[65]	255
[78]	256	my $failmsg = '';
[66]	257
[87]	258	# see if we're switching from inherited to custom. for bonus points,
	259	# snag the permid and parent permid anyway, since we'll need the permid
	260	# to set/alter custom perms, and both if we're switching from custom to
	261	# inherited.
	262	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
[65]	263	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
[66]	264	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
[65]	265	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
	266	$sth->execute($id);
	267
[87]	268	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
[66]	269
[78]	270	# hack phtoui
	271	# group id 1 is "special" in that it's it's own parent (err... possibly.)
	272	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
	273	$wasinherited = 0 if ($type eq 'group' && $id == 1);
	274
[66]	275	local $dbh->{AutoCommit} = 0;
	276	local $dbh->{RaiseError} = 1;
	277
	278	# Wrap all the SQL in a transaction
	279	eval {
[87]	280	if ($inherit) {
	281
	282	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
	283	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
	284	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
	285
	286	} else {
	287
	288	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
[66]	289	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
[87]	290	# ... if'n'when we have groups with fully inherited permissions.
	291	# SQL is coo
	292	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
	293	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
	294	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
	295	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
	296	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
	297	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
[66]	298	}
[78]	299
[87]	300	# and now set the permissions we were passed
	301	foreach (@permtypes) {
	302	if (defined ($newperms->{$_})) {
	303	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
	304	}
	305	}
	306
	307	} # (inherited->)? custom
	308
[66]	309	$dbh->commit;
	310	}; # end eval
	311	if ($@) {
	312	my $msg = $@;
	313	eval { $dbh->rollback; };
[87]	314	return ('FAIL',"$failmsg: $msg ($permid)");
[66]	315	} else {
	316	return ('OK',$permid);
	317	}
	318
[65]	319	} # end changePermissions()
	320
	321
[67]	322	## DNSDB::comparePermissions()
	323	# Compare two permission hashes
	324	# Returns '>', '<', '=', '!'
	325	sub comparePermissions {
	326	my $p1 = shift;
	327	my $p2 = shift;
	328
	329	my $retval = '='; # assume equality until proven otherwise
	330
	331	no warnings "uninitialized";
	332
	333	foreach (@permtypes) {
	334	next if $p1->{$_} == $p2->{$_}; # equal is good
	335	if ($p1->{$_} && !$p2->{$_}) {
	336	if ($retval eq '<') { # if we've already found an unequal pair where
	337	$retval = '!'; # $p2 has more access, and we now find a pair
	338	last; # where $p1 has more access, the overall access
	339	} # is neither greater or lesser, it's unequal.
	340	$retval = '>';
	341	}
	342	if (!$p1->{$_} && $p2->{$_}) {
	343	if ($retval eq '>') { # if we've already found an unequal pair where
	344	$retval = '!'; # $p1 has more access, and we now find a pair
	345	last; # where $p2 has more access, the overall access
	346	} # is neither greater or lesser, it's unequal.
	347	$retval = '<';
	348	}
	349	}
	350	return $retval;
	351	} # end comparePermissions()
	352
	353
[112]	354	## DNSDB::changeGroup()
	355	# Change group ID of an entity
	356	# Takes a database handle, entity type, entity ID, and new group ID
	357	sub changeGroup {
	358	my $dbh = shift;
	359	my $type = shift;
	360	my $id = shift;
	361	my $newgrp = shift;
	362
	363	##fixme: fail on not enough args
	364	#return ('FAIL', "Missing
	365
	366	if ($type eq 'domain') {
	367	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
	368	or return ('FAIL','Group change failed: '.$dbh->errstr);
	369	} elsif ($type eq 'user') {
	370	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
	371	or return ('FAIL','Group change failed: '.$dbh->errstr);
	372	} elsif ($type eq 'group') {
	373	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
	374	or return ('FAIL','Group change failed: '.$dbh->errstr);
	375	}
	376	return ('OK','OK');
	377	} # end changeGroup()
	378
	379
[55]	380	## DNSDB::_log()
	381	# Log an action
	382	# Internal sub
	383	# Takes a database handle, <foo>, <bar>
	384	sub _log {
	385	} # end _log
	386
	387
[2]	388	##
	389	## Processing subs
	390	##
	391
	392	## DNSDB::addDomain()
	393	# Add a domain
	394	# Takes a database handle, domain name, numeric group, and boolean(ish) state (active/inactive)
	395	# Returns a status code and message
	396	sub addDomain {
	397	$errstr = '';
	398	my $dbh = shift;
	399	return ('FAIL',"Need database handle") if !$dbh;
	400	my $domain = shift;
[91]	401	return ('FAIL',"Domain must not be blank") if !$domain;
[2]	402	my $group = shift;
	403	return ('FAIL',"Need group") if !defined($group);
	404	my $state = shift;
	405	return ('FAIL',"Need domain status") if !defined($state);
	406
[38]	407	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[3]	408	my $dom_id;
	409
[38]	410	# quick check to start to see if we've already got one
	411	$sth->execute($domain);
	412	($dom_id) = $sth->fetchrow_array;
	413
	414	return ('FAIL', "Domain already exists") if $dom_id;
	415
[2]	416	# Allow transactions, and raise an exception on errors so we can catch it later.
	417	# Use local to make sure these get "reset" properly on exiting this block
	418	local $dbh->{AutoCommit} = 0;
	419	local $dbh->{RaiseError} = 1;
	420
	421	# Wrap all the SQL in a transaction
	422	eval {
	423	# insert the domain...
	424	my $sth = $dbh->prepare("insert into domains (domain,group_id,status) values (?,?,?)");
	425	$sth->execute($domain,$group,$state);
	426
	427	# get the ID...
	428	$sth = $dbh->prepare("select domain_id from domains where domain='$domain'");
	429	$sth->execute;
[3]	430	($dom_id) = $sth->fetchrow_array();
[2]	431
	432	# ... and now we construct the standard records from the default set. NB: group should be variable.
[3]	433	$sth = $dbh->prepare("select host,type,val,distance,weight,port,ttl from default_records where group_id=$group");
	434	my $sth_in = $dbh->prepare("insert into records (domain_id,host,type,val,distance,weight,port,ttl)".
	435	" values ($dom_id,?,?,?,?,?,?,?)");
[2]	436	$sth->execute;
[3]	437	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
[2]	438	$host =~ s/DOMAIN/$domain/g;
[37]	439	$val =~ s/DOMAIN/$domain/g;
[3]	440	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
[2]	441	}
	442
	443	# once we get here, we should have suceeded.
	444	$dbh->commit;
	445	}; # end eval
	446
	447	if ($@) {
	448	my $msg = $@;
	449	eval { $dbh->rollback; };
	450	return ('FAIL',$msg);
	451	} else {
[3]	452	return ('OK',$dom_id);
[2]	453	}
	454	} # end addDomain
	455
	456
[3]	457	## DNSDB::delDomain()
	458	# Delete a domain.
	459	# for now, just delete the records, then the domain.
	460	# later we may want to archive it in some way instead (status code 2, for example?)
	461	sub delDomain {
	462	my $dbh = shift;
[5]	463	my $domid = shift;
[3]	464
	465	# Allow transactions, and raise an exception on errors so we can catch it later.
	466	# Use local to make sure these get "reset" properly on exiting this block
	467	local $dbh->{AutoCommit} = 0;
	468	local $dbh->{RaiseError} = 1;
	469
[23]	470	my $failmsg = '';
	471
[3]	472	# Wrap all the SQL in a transaction
	473	eval {
[5]	474	my $sth = $dbh->prepare("delete from records where domain_id=?");
[23]	475	$failmsg = "Failure removing domain records";
[5]	476	$sth->execute($domid);
	477	$sth = $dbh->prepare("delete from domains where domain_id=?");
[23]	478	$failmsg = "Failure removing domain";
[5]	479	$sth->execute($domid);
[3]	480
	481	# once we get here, we should have suceeded.
[23]	482	$dbh->commit;
[3]	483	}; # end eval
	484
	485	if ($@) {
	486	my $msg = $@;
	487	eval { $dbh->rollback; };
[23]	488	return ('FAIL',"$failmsg: $msg");
[3]	489	} else {
	490	return ('OK','OK');
	491	}
	492
	493	} # end delDomain()
	494
	495
[2]	496	## DNSDB::domainName()
	497	# Return the domain name based on a domain ID
	498	# Takes a database handle and the domain ID
	499	# Returns the domain name or undef on failure
	500	sub domainName {
	501	$errstr = '';
	502	my $dbh = shift;
	503	my $domid = shift;
[91]	504	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
[2]	505	$errstr = $DBI::errstr if !$domname;
	506	return $domname if $domname;
[91]	507	} # end domainName()
[2]	508
	509
[91]	510	## DNSDB::domainID()
	511	# Takes a database handle and domain name
	512	# Returns the domain ID number
	513	sub domainID {
	514	$errstr = '';
	515	my $dbh = shift;
	516	my $domain = shift;
	517	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
	518	$errstr = $DBI::errstr if !$domid;
	519	return $domid if $domid;
	520	} # end domainID()
	521
	522
[18]	523	## DNSDB::addGroup()
	524	# Add a group
[66]	525	# Takes a database handle, group name, parent group, hashref for permissions,
	526	# and optional template-vs-cloneme flag
[18]	527	# Returns a status code and message
	528	sub addGroup {
	529	$errstr = '';
	530	my $dbh = shift;
[20]	531	my $groupname = shift;
	532	my $pargroup = shift;
[66]	533	my $permissions = shift;
[18]	534
[66]	535	# 0 indicates "custom", hardcoded.
[18]	536	# Any other value clones that group's default records, if it exists.
[66]	537	my $inherit = shift \|\| 0;
	538	##fixme: need a flag to indicate clone records or <?> ?
[18]	539
	540	# Allow transactions, and raise an exception on errors so we can catch it later.
	541	# Use local to make sure these get "reset" properly on exiting this block
	542	local $dbh->{AutoCommit} = 0;
	543	local $dbh->{RaiseError} = 1;
	544
[38]	545	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
	546	my $group_id;
	547
	548	# quick check to start to see if we've already got one
	549	$sth->execute($groupname);
	550	($group_id) = $sth->fetchrow_array;
	551
	552	return ('FAIL', "Group already exists") if $group_id;
	553
[18]	554	# Wrap all the SQL in a transaction
	555	eval {
[38]	556	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
[20]	557	$sth->execute($pargroup,$groupname);
[18]	558
	559	$sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
[20]	560	$sth->execute($groupname);
	561	my ($groupid) = $sth->fetchrow_array();
[18]	562
[66]	563	# Permissions
	564	if ($inherit) {
	565	} else {
	566	my @permvals;
	567	foreach (@permtypes) {
	568	if (!defined ($permissions->{$_})) {
	569	push @permvals, 0;
	570	} else {
	571	push @permvals, $permissions->{$_};
	572	}
	573	}
	574
	575	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
	576	$sth->execute($groupid,@permvals);
	577
	578	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
	579	$sth->execute($groupid);
	580	my ($permid) = $sth->fetchrow_array();
	581
	582	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
	583	} # done permission fiddling
	584
	585	# Default records
[18]	586	$sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
[20]	587	"VALUES ($groupid,?,?,?,?,?,?,?)");
[66]	588	if ($inherit) {
[87]	589	# Duplicate records from parent. Actually relying on inherited records feels
	590	# very fragile, and it would be problematic to roll over at a later time.
[18]	591	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
[87]	592	$sth2->execute($pargroup);
[18]	593	while (my @clonedata = $sth2->fetchrow_array) {
	594	$sth->execute(@clonedata);
	595	}
	596	} else {
[66]	597	##fixme: Hardcoding is Bad, mmmmkaaaay?
[18]	598	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
	599	# could load from a config file, but somewhere along the line we need hardcoded bits.
	600	$sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
	601	$sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
	602	$sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
	603	$sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
	604	$sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
	605	$sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
	606	}
	607
	608	# once we get here, we should have suceeded.
	609	$dbh->commit;
	610	}; # end eval
	611
	612	if ($@) {
	613	my $msg = $@;
	614	eval { $dbh->rollback; };
	615	return ('FAIL',$msg);
	616	} else {
	617	return ('OK','OK');
	618	}
	619
	620	} # end addGroup()
	621
	622
[22]	623	## DNSDB::delGroup()
	624	# Delete a group.
	625	# Takes a group ID
	626	# Returns a status code and message
	627	sub delGroup {
	628	my $dbh = shift;
	629	my $groupid = shift;
	630
	631	# Allow transactions, and raise an exception on errors so we can catch it later.
	632	# Use local to make sure these get "reset" properly on exiting this block
	633	local $dbh->{AutoCommit} = 0;
	634	local $dbh->{RaiseError} = 1;
	635
	636	##fixme: locate "knowable" error conditions and deal with them before the eval
[23]	637	# ... or inside, whatever.
[22]	638	# -> domains still exist in group
	639	# -> ...
[23]	640	my $failmsg = '';
[22]	641
	642	# Wrap all the SQL in a transaction
	643	eval {
[23]	644	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
[22]	645	$sth->execute($groupid);
[23]	646	my ($domcnt) = $sth->fetchrow_array;
	647	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
	648	die "$domcnt domains still in group\n" if $domcnt;
	649
	650	$sth = $dbh->prepare("delete from default_records where group_id=?");
	651	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
	652	$sth->execute($groupid);
[22]	653	$sth = $dbh->prepare("delete from groups where group_id=?");
[23]	654	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
[22]	655	$sth->execute($groupid);
	656
	657	# once we get here, we should have suceeded.
	658	$dbh->commit;
	659	}; # end eval
	660
	661	if ($@) {
	662	my $msg = $@;
	663	eval { $dbh->rollback; };
[23]	664	return ('FAIL',"$failmsg: $msg");
[22]	665	} else {
	666	return ('OK','OK');
	667	}
	668	} # end delGroup()
	669
	670
[19]	671	## DNSDB::getChildren()
	672	# Get a list of all groups whose parent^n is group <n>
[24]	673	# Takes a database handle, group ID, reference to an array to put the group IDs in,
	674	# and an optional flag to return only immediate children or all children-of-children
	675	# default to returning all children
[19]	676	# Calls itself
	677	sub getChildren {
	678	$errstr = '';
	679	my $dbh = shift;
[20]	680	my $rootgroup = shift;
	681	my $groupdest = shift;
[24]	682	my $immed = shift \|\| 'all';
[19]	683
	684	# special break for default group; otherwise we get stuck.
[20]	685	if ($rootgroup == 1) {
[19]	686	# by definition, group 1 is the Root Of All Groups
[24]	687	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
	688	($immed ne 'all' ? " AND parent_group_id=1" : ''));
[19]	689	$sth->execute;
	690	while (my @this = $sth->fetchrow_array) {
[20]	691	push @$groupdest, @this;
[19]	692	}
	693	} else {
	694	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
[20]	695	$sth->execute($rootgroup);
[19]	696	return if $sth->rows == 0;
[20]	697	my @grouplist;
	698	while (my ($group) = $sth->fetchrow_array) {
	699	push @$groupdest, $group;
[24]	700	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
[19]	701	}
	702	}
	703	} # end getChildren()
	704
	705
[20]	706	## DNSDB::groupName()
[17]	707	# Return the group name based on a group ID
	708	# Takes a database handle and the group ID
	709	# Returns the group name or undef on failure
[20]	710	sub groupName {
[13]	711	$errstr = '';
	712	my $dbh = shift;
[20]	713	my $groupid = shift;
	714	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
	715	$sth->execute($groupid);
	716	my ($groupname) = $sth->fetchrow_array();
	717	$errstr = $DBI::errstr if !$groupname;
	718	return $groupname if $groupname;
	719	} # end groupName
[13]	720
	721
[24]	722	## DNSDB::addUser()
[87]	723	# Add a user.
	724	# Takes a DB handle, username, group ID, password, state (active/inactive).
	725	# Optionally accepts:
	726	# user type (user/admin) - defaults to user
	727	# permissions string - defaults to inherit from group
	728	# three valid forms:
	729	# i - Inherit permissions
	730	# c:<user_id> - Clone permissions from <user_id>
	731	# C:<permission list> - Set these specific permissions
	732	# first name - defaults to username
	733	# last name - defaults to blank
	734	# phone - defaults to blank (could put other data within column def)
[90]	735	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
[24]	736	sub addUser {
	737	$errstr = '';
	738	my $dbh = shift;
	739	my $username = shift;
	740	my $group = shift;
	741	my $pass = shift;
	742	my $state = shift;
[25]	743
[90]	744	return ('FAIL', "Missing one or more required entries") if !defined($state);
	745	return ('FAIL', "Username must not be blank") if !$username;
[87]	746
[25]	747	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
	748
[67]	749	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
	750
[25]	751	my $fname = shift \|\| $username;
[24]	752	my $lname = shift \|\| '';
[25]	753	my $phone = shift \|\| ''; # not going format-check
[24]	754
[38]	755	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
[24]	756	my $user_id;
	757
[38]	758	# quick check to start to see if we've already got one
	759	$sth->execute($username);
	760	($user_id) = $sth->fetchrow_array;
	761
	762	return ('FAIL', "User already exists") if $user_id;
	763
[24]	764	# Allow transactions, and raise an exception on errors so we can catch it later.
	765	# Use local to make sure these get "reset" properly on exiting this block
	766	local $dbh->{AutoCommit} = 0;
	767	local $dbh->{RaiseError} = 1;
	768
[94]	769	my $failmsg = '';
	770
[24]	771	# Wrap all the SQL in a transaction
	772	eval {
[87]	773	# insert the user... note we set inherited perms by default since
	774	# it's simple and cleans up some other bits of state
	775	my $sth = $dbh->prepare("INSERT INTO users ".
	776	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
	777	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
	778	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
[24]	779
	780	# get the ID...
[94]	781	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
[24]	782
[87]	783	# Permissions! Gotta set'em all!
	784	die "Invalid permission string $permstring"
	785	if $permstring !~ /^(?:
	786	i # inherit
	787	\|c:\d+ # clone
	788	# custom. no, the leading , is not a typo
[111]	789	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
[87]	790	)$/x;
	791	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
	792	if ($permstring ne 'i') {
	793	# for cloned or custom permissions, we have to create a new permissions entry.
	794	my $clonesrc = $group;
	795	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
	796	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
	797	"SELECT $permlist,? FROM permissions WHERE permission_id=".
	798	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
	799	undef, ($user_id,$clonesrc) );
	800	$dbh->do("UPDATE users SET permission_id=".
	801	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
	802	"WHERE user_id=?", undef, ($user_id, $user_id) );
	803	}
	804	if ($permstring =~ /^C:/) {
	805	# finally for custom permissions, we set the passed-in permissions (and unset
	806	# any that might have been brought in by the clone operation above)
	807	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
	808	undef, ($user_id) );
	809	foreach (@permtypes) {
	810	if ($permstring =~ /,$_/) {
	811	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
	812	} else {
	813	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
	814	}
	815	}
	816	}
	817
	818	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
	819
[25]	820	##fixme: add another table to hold name/email for log table?
	821
[24]	822	# once we get here, we should have suceeded.
	823	$dbh->commit;
	824	}; # end eval
	825
	826	if ($@) {
	827	my $msg = $@;
	828	eval { $dbh->rollback; };
[87]	829	return ('FAIL',$msg." $failmsg");
[24]	830	} else {
	831	return ('OK',$user_id);
	832	}
	833	} # end addUser
	834
	835
[55]	836	## DNSDB::checkUser()
	837	# Check user/pass combo on login
	838	sub checkUser {
	839	my $dbh = shift;
	840	my $user = shift;
[56]	841	my $inpass = shift;
[55]	842
	843	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
	844	$sth->execute($user);
	845	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
	846	my $loginfailed = 1 if !defined($uid);
	847
	848	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
[56]	849	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
[55]	850	} else {
[56]	851	$loginfailed = 1 if $pass ne $inpass;
[55]	852	}
	853
	854	# nnnngggg
	855	return ($uid, $gid);
	856	} # end checkUser
	857
	858
[83]	859	## DNSDB:: updateUser()
[90]	860	# Update general data about user
[83]	861	sub updateUser {
	862	my $dbh = shift;
	863	my $uid = shift;
	864	my $username = shift;
	865	my $group = shift;
	866	my $pass = shift;
	867	my $state = shift;
[87]	868	my $type = shift \|\| 'u';
[83]	869	my $fname = shift \|\| $username;
	870	my $lname = shift \|\| '';
	871	my $phone = shift \|\| ''; # not going format-check
	872
	873	my $failmsg = '';
	874
	875	# Allow transactions, and raise an exception on errors so we can catch it later.
	876	# Use local to make sure these get "reset" properly on exiting this block
	877	local $dbh->{AutoCommit} = 0;
	878	local $dbh->{RaiseError} = 1;
	879
	880	my $sth;
	881
	882	# Password can be left blank; if so we assume there's one on file.
	883	# Actual blank passwords are bad, mm'kay?
	884	if (!$pass) {
	885	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
	886	$sth->execute($uid);
	887	($pass) = $sth->fetchrow_array;
	888	} else {
	889	$pass = unix_md5_crypt($pass);
	890	}
	891
	892	eval {
	893	my $sth = $dbh->prepare(q(
	894	UPDATE users
	895	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
	896	WHERE user_id=?
	897	)
	898	);
	899	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
	900	$dbh->commit;
	901	};
	902	if ($@) {
	903	my $msg = $@;
	904	eval { $dbh->rollback; };
	905	return ('FAIL',"$failmsg: $msg");
	906	} else {
	907	return ('OK','OK');
	908	}
	909	} # end updateUser()
	910
	911
[24]	912	## DNSDB::delUser()
	913	#
	914	sub delUser {
[25]	915	my $dbh = shift;
	916	return ('FAIL',"Need database handle") if !$dbh;
	917	my $userid = shift;
	918	return ('FAIL',"Missing userid") if !defined($userid);
	919
	920	my $sth = $dbh->prepare("delete from users where user_id=?");
	921	$sth->execute($userid);
	922
	923	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
	924
	925	return ('OK','OK');
	926
[24]	927	} # end delUser
	928
	929
[25]	930	## DNSDB::userFullName()
	931	# Return a pretty string!
	932	# Takes a user_id and optional printf-ish string to indicate which pieces where:
	933	# %u for the username
	934	# %f for the first name
	935	# %l for the last name
	936	# All other text in the passed string will be left as-is.
	937	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
	938	sub userFullName {
	939	$errstr = '';
	940	my $dbh = shift;
	941	my $userid = shift;
	942	my $fullformat = shift \|\| '%f %l (%u)';
	943	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
	944	$sth->execute($userid);
	945	my ($uname,$fname,$lname) = $sth->fetchrow_array();
	946	$errstr = $DBI::errstr if !$uname;
	947
	948	$fullformat =~ s/\%u/$uname/g;
	949	$fullformat =~ s/\%f/$fname/g;
	950	$fullformat =~ s/\%l/$lname/g;
	951
	952	return $fullformat;
	953	} # end userFullName
	954
	955
[51]	956	## DNSDB::userStatus()
	957	# Sets and/or returns a user's status
	958	# Takes a database handle, user ID and optionally a status argument
	959	# Returns undef on errors.
	960	sub userStatus {
	961	my $dbh = shift;
	962	my $id = shift;
	963	my $newstatus = shift;
	964
	965	return undef if $id !~ /^\d+$/;
	966
	967	my $sth;
	968
	969	# ooo, fun! let's see what we were passed for status
	970	if ($newstatus) {
	971	$sth = $dbh->prepare("update users set status=? where user_id=?");
	972	# ass-u-me caller knows what's going on in full
	973	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	974	$sth->execute($newstatus,$id);
	975	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
	976	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
	977	}
	978	}
	979
	980	$sth = $dbh->prepare("select status from users where user_id=?");
	981	$sth->execute($id);
	982	my ($status) = $sth->fetchrow_array;
	983	return $status;
	984	} # end userStatus()
	985
	986
[83]	987	## DNSDB::getUserData()
	988	# Get misc user data for display
	989	sub getUserData {
	990	my $dbh = shift;
	991	my $uid = shift;
	992
	993	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
	994	"FROM users WHERE user_id=?");
	995	$sth->execute($uid);
	996	return $sth->fetchrow_hashref();
	997
	998	} # end getUserData()
	999
	1000
[2]	1001	## DNSDB::getSOA()
	1002	# Return all suitable fields from an SOA record in separate elements of a hash
	1003	# Takes a database handle, default/live flag, and group (default) or domain (live) ID
	1004	sub getSOA {
	1005	$errstr = '';
	1006	my $dbh = shift;
	1007	my $def = shift;
	1008	my $id = shift;
	1009	my %ret;
	1010
[101]	1011	# (ab)use distance and weight columns to store SOA data
	1012
	1013	my $sql = "SELECT record_id,host,val,ttl,distance from";
[2]	1014	if ($def eq 'def' or $def eq 'y') {
[101]	1015	$sql .= " default_records WHERE group_id=? AND type=$reverse_typemap{SOA}";
[2]	1016	} else {
	1017	# we're editing a live SOA record; find based on domain
[101]	1018	$sql .= " records WHERE domain_id=? AND type=$reverse_typemap{SOA}";
[2]	1019	}
	1020	my $sth = $dbh->prepare($sql);
[101]	1021	$sth->execute($id);
[2]	1022
[101]	1023	my ($recid,$host,$val,$ttl,$serial) = $sth->fetchrow_array();
[2]	1024	my ($prins,$contact) = split /:/, $host;
	1025	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
	1026
	1027	$ret{recid} = $recid;
	1028	$ret{ttl} = $ttl;
[101]	1029	$ret{serial} = $serial;
[2]	1030	$ret{prins} = $prins;
	1031	$ret{contact} = $contact;
	1032	$ret{refresh} = $refresh;
	1033	$ret{retry} = $retry;
	1034	$ret{expire} = $expire;
	1035	$ret{minttl} = $minttl;
	1036
	1037	return %ret;
	1038	} # end getSOA()
	1039
	1040
	1041	## DNSDB::getRecLine()
	1042	# Return all data fields for a zone record in separate elements of a hash
	1043	# Takes a database handle, default/live flag, and record ID
	1044	sub getRecLine {
	1045	$errstr = '';
	1046	my $dbh = shift;
	1047	my $def = shift;
	1048	my $id = shift;
	1049
[90]	1050	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl,r.longrec_id,l.recdata".
	1051	(($def eq 'def' or $def eq 'y') ? ',r.group_id FROM default_' : ',r.domain_id FROM ').
	1052	"records r LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id WHERE record_id=?";
	1053	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) ) or warn $dbh->errstr;
[2]	1054
[90]	1055	if ($dbh->err) {
[2]	1056	$errstr = $DBI::errstr;
	1057	return undef;
	1058	}
	1059
[90]	1060	$ret->{val} = $ret->{recdata} if $ret->{longrec_id}; # put the long data in the real value space
	1061	delete $ret->{longrec_id}; # remove these since they shouldn't be exposed - the caller
	1062	delete $ret->{recdata}; # should not care about "long records" vs normal ones.
[107]	1063	$ret->{parid} = (($def eq 'def' or $def eq 'y') ? $ret->{group_id} : $ret->{domain_id});
[90]	1064
	1065	return $ret;
[2]	1066	}
	1067
	1068
	1069	##fixme: should use above (getRecLine()) to get lines for below?
	1070	## DNSDB::getDomRecs()
	1071	# Return records for a domain
	1072	# Takes a database handle, default/live flag, group/domain ID, start,
	1073	# number of records, sort field, and sort order
	1074	# Returns a reference to an array of hashes
	1075	sub getDomRecs {
	1076	$errstr = '';
	1077	my $dbh = shift;
	1078	my $type = shift;
	1079	my $id = shift;
[4]	1080	my $nrecs = shift \|\| 'all';
	1081	my $nstart = shift \|\| 0;
[2]	1082
[4]	1083	## for order, need to map input to column names
	1084	my $order = shift \|\| 'host';
[72]	1085	my $direction = shift \|\| 'ASC';
[4]	1086
[90]	1087	$type = 'y' if $type eq 'def';
	1088
	1089	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl,r.longrec_id,l.recdata FROM ";
	1090	$sql .= "default_" if $type eq 'y';
	1091	$sql .= "records r ";
[104]	1092	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
[90]	1093	$sql .= "LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id ";
	1094	if ($type eq 'y') {
	1095	$sql .= "WHERE r.group_id=?";
[2]	1096	} else {
[90]	1097	$sql .= "WHERE r.domain_id=?";
[2]	1098	}
[104]	1099	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
	1100	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
	1101	$sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
[90]	1102	$sql .= " LIMIT $nrecs OFFSET ".($nstart*$nrecs) if $nstart ne 'all';
[4]	1103
[90]	1104	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
	1105	$sth->execute($id) or warn "$sql: ".$sth->errstr;
[2]	1106
	1107	my @retbase;
	1108	while (my $ref = $sth->fetchrow_hashref()) {
[90]	1109	$ref->{val} = $ref->{recdata} if $ref->{longrec_id}; # put the long data in the real value space
	1110	delete $ref->{longrec_id}; # remove these since they shouldn't be exposed - the caller
	1111	delete $ref->{recdata}; # should not care about "long records" vs normal ones.
[2]	1112	push @retbase, $ref;
	1113	}
	1114
	1115	my $ret = \@retbase;
	1116	return $ret;
	1117	} # end getDomRecs()
	1118
	1119
[91]	1120	## DNSDB::getRecCount()
	1121	# Return count of non-SOA records in domain (or default records in a group)
	1122	# Takes a database handle, default/live flag and group/domain ID
	1123	# Returns the count
	1124	sub getRecCount {
	1125	my $dbh = shift;
	1126	my $defrec = shift;
	1127	my $id = shift;
	1128
	1129	my ($count) = $dbh->selectrow_array("SELECT count(*) FROM ".
	1130	($defrec eq 'y' ? 'default_' : '')."records ".
	1131	"WHERE ".($defrec eq 'y' ? 'group' : 'domain')."_id=? ".
	1132	"AND NOT type=$reverse_typemap{SOA}", undef, ($id) );
	1133
	1134	return $count;
	1135
	1136	} # end getRecCount()
	1137
	1138
[3]	1139	## DNSDB::addRec()
[2]	1140	# Add a new record to a domain or a group's default records
	1141	# Takes a database handle, default/live flag, group/domain ID,
	1142	# host, type, value, and TTL
	1143	# Some types require additional detail: "distance" for MX and SRV,
	1144	# and weight/port for SRV
	1145	# Returns a status code and detail message in case of error
	1146	sub addRec {
	1147	$errstr = '';
	1148	my $dbh = shift;
	1149	my $defrec = shift;
	1150	my $id = shift;
	1151
	1152	my $host = shift;
	1153	my $rectype = shift;
	1154	my $val = shift;
	1155	my $ttl = shift;
	1156
	1157	my $fields = ($defrec eq 'y' ? 'group_id' : 'domain_id').",host,type,val,ttl";
[24]	1158	my $vallen = "?,?,?,?,?";
	1159	my @vallist = ($id,$host,$rectype,$val,$ttl);
[2]	1160
	1161	my $dist;
	1162	if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
	1163	$dist = shift;
	1164	return ('FAIL',"Need distance for $typemap{$rectype} record") if !defined($dist);
	1165	$fields .= ",distance";
[24]	1166	$vallen .= ",?";
	1167	push @vallist, $dist;
[2]	1168	}
	1169	my $weight;
	1170	my $port;
	1171	if ($rectype == $reverse_typemap{SRV}) {
[24]	1172	# check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
	1173	# it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
	1174	return ('FAIL',"SRV records must begin with _service._protocol")
	1175	if $host !~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-z0-9-]+/;
[2]	1176	$weight = shift;
	1177	$port = shift;
	1178	return ('FAIL',"Need weight and port for SRV record") if !defined($weight) or !defined($port);
	1179	$fields .= ",weight,port";
[24]	1180	$vallen .= ",?,?";
	1181	push @vallist, ($weight,$port);
[2]	1182	}
	1183
[90]	1184	# Allow transactions, and raise an exception on errors so we can catch it later.
	1185	# Use local to make sure these get "reset" properly on exiting this block
	1186	local $dbh->{AutoCommit} = 0;
	1187	local $dbh->{RaiseError} = 1;
[2]	1188
[90]	1189	eval {
	1190	if (length($val) > 100 ) {
	1191	# extralong records get an entry in a separate table.
	1192	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($val) );
	1193	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($val) );
	1194	$fields .= ",longrec_id";
	1195	$vallen .= ",?";
	1196	push @vallist, $longid;
	1197	$vallist[3] = ''; # so we don't barf when we insert the main record
	1198	}
	1199	$dbh->do("INSERT INTO ".($defrec eq 'y' ? 'default_' : '')."records ($fields) VALUES ($vallen)",
	1200	undef, @vallist);
	1201	$dbh->commit;
	1202	};
	1203	if ($@) {
	1204	my $msg = $@;
	1205	eval { $dbh->rollback; };
	1206	return ('FAIL',$msg);
	1207	}
[2]	1208
	1209	return ('OK','OK');
[90]	1210
[2]	1211	} # end addRec()
	1212
	1213
[16]	1214	## DNSDB::updateRec()
	1215	# Update a record
	1216	sub updateRec {
	1217	$errstr = '';
[17]	1218
[16]	1219	my $dbh = shift;
	1220	my $defrec = shift;
	1221	my $id = shift;
	1222
	1223	# all records have these
	1224	my $host = shift;
	1225	my $type = shift;
	1226	my $val = shift;
	1227	my $ttl = shift;
	1228
	1229	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
	1230
	1231	# only MX and SRV will use these
	1232	my $dist = 0;
	1233	my $weight = 0;
	1234	my $port = 0;
	1235
	1236	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
[17]	1237	$dist = shift;
	1238	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
[16]	1239	if ($type == $reverse_typemap{SRV}) {
[17]	1240	$weight = shift;
	1241	return ('FAIL',"SRV requires weight") if !defined($weight);
	1242	$port = shift;
	1243	return ('FAIL',"SRV requires port") if !defined($port);
[16]	1244	}
	1245	}
	1246
[90]	1247	# my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl,r.longrec_id,l.recdata FROM ";
	1248	# $sql .= "default_" if $type eq 'y';
	1249	# $sql .= "records r ";
	1250	# $sql .= "LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id ";
[16]	1251
[90]	1252	# get the long record ID, if any
	1253	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM ".($defrec eq 'y' ? 'default_' : '')."records ".
	1254	"WHERE record_id=?", undef, ($id) );
[16]	1255
[90]	1256	local $dbh->{AutoCommit} = 0;
	1257	local $dbh->{RaiseError} = 1;
	1258
	1259	eval {
	1260	# there's really no tidy way to squash this down. :/
	1261	if (length($val) > 100) {
	1262	if ($longid) {
	1263	$dbh->do("UPDATE longrecs SET recdata=? WHERE longrec_id=?", undef, ($val, $longid) );
	1264	} else {
	1265	##fixme: has to be a better way to be sure we get the right recid back once inserted...
	1266	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($val) );
	1267	my ($newlongid) = $dbh->selectrow_array("SELECT currval('longrecs_longrec_id_seq')");
	1268	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records SET val=?,longrec_id=? ".
	1269	"WHERE record_id=?", undef, ('', $newlongid, $id) );
	1270	}
	1271	} else {
	1272	if ($longid) {
	1273	$dbh->do("DELETE FROM longrecs WHERE longrec_id=?", undef, ($longid) );
	1274	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records SET val=?,longrec_id=NULL ".
	1275	"WHERE record_id=?", undef, ($val, $id) );
	1276	} else {
	1277	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records SET val=? ".
	1278	"WHERE record_id=?", undef, ($val, $id) );
	1279	}
	1280	}
	1281
	1282	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
	1283	"SET host=?,type=?,ttl=?,distance=?,weight=?,port=? ".
	1284	"WHERE record_id=?", undef, ($host, $type, $ttl, $dist, $weight, $port, $id) );
	1285
	1286	};
	1287	if ($@) {
	1288	my $msg = $@;
	1289	$dbh->rollback;
	1290	return ('FAIL', $msg);
	1291	}
	1292	# return ('FAIL',$sth->errstr."<br>\n$errstr<br>\n") if $sth->err;
	1293
[16]	1294	return ('OK','OK');
	1295	} # end updateRec()
	1296
	1297
[3]	1298	## DNSDB::delRec()
	1299	# Delete a record.
	1300	sub delRec {
	1301	$errstr = '';
	1302	my $dbh = shift;
	1303	my $defrec = shift;
	1304	my $id = shift;
	1305
[62]	1306	my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
[3]	1307	$sth->execute($id);
	1308
[23]	1309	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
[3]	1310
	1311	return ('OK','OK');
	1312	} # end delRec()
	1313
	1314
	1315	## DNSDB::domStatus()
	1316	# Sets and/or returns a domain's status
	1317	# Takes a database handle, domain ID and optionally a status argument
	1318	# Returns undef on errors.
	1319	sub domStatus {
	1320	my $dbh = shift;
	1321	my $id = shift;
	1322	my $newstatus = shift;
	1323
	1324	return undef if $id !~ /^\d+$/;
	1325
	1326	my $sth;
	1327
	1328	# ooo, fun! let's see what we were passed for status
	1329	if ($newstatus) {
	1330	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
	1331	# ass-u-me caller knows what's going on in full
	1332	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	1333	$sth->execute($newstatus,$id);
	1334	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
	1335	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
	1336	}
	1337	}
	1338
	1339	$sth = $dbh->prepare("select status from domains where domain_id=?");
	1340	$sth->execute($id);
	1341	my ($status) = $sth->fetchrow_array;
	1342	return $status;
	1343	} # end domStatus()
	1344
	1345
[33]	1346	## DNSDB::importAXFR
	1347	# Import a domain via AXFR
[37]	1348	# Takes AXFR host, domain to transfer, group to put the domain in,
	1349	# and optionally:
	1350	# - active/inactive state flag (defaults to active)
	1351	# - overwrite-SOA flag (defaults to off)
	1352	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
	1353	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
	1354	# if status is OK, but WARN includes conditions that are not fatal but should
	1355	# really be reported.
[33]	1356	sub importAXFR {
	1357	my $dbh = shift;
[35]	1358	my $ifrom_in = shift;
[33]	1359	my $domain = shift;
	1360	my $group = shift;
	1361	my $status = shift \|\| 1;
	1362	my $rwsoa = shift \|\| 0;
	1363	my $rwns = shift \|\| 0;
[37]	1364
[33]	1365	##fixme: add mode to delete&replace, merge+overwrite, merge new?
	1366
[37]	1367	my $nrecs = 0;
	1368	my $soaflag = 0;
	1369	my $nsflag = 0;
	1370	my $warnmsg = '';
	1371	my $ifrom;
[33]	1372
[35]	1373	# choke on possible bad setting in ifrom
[37]	1374	# IPv4 and v6, and valid hostnames!
[35]	1375	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1376	return ('FAIL', "Bad AXFR source host $ifrom")
	1377	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1378
[33]	1379	# Allow transactions, and raise an exception on errors so we can catch it later.
	1380	# Use local to make sure these get "reset" properly on exiting this block
	1381	local $dbh->{AutoCommit} = 0;
	1382	local $dbh->{RaiseError} = 1;
	1383
[37]	1384	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[34]	1385	my $dom_id;
	1386
[35]	1387	# quick check to start to see if we've already got one
[37]	1388	$sth->execute($domain);
	1389	($dom_id) = $sth->fetchrow_array;
[35]	1390
	1391	return ('FAIL', "Domain already exists") if $dom_id;
	1392
[33]	1393	eval {
	1394	# can't do this, can't nest transactions. sigh.
[35]	1395	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
[33]	1396
	1397	##fixme: serial
[37]	1398	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
	1399	$sth->execute($domain,$group,$status);
[33]	1400
[35]	1401	## bizarre DBI<->Net::DNS interaction bug:
	1402	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
[37]	1403	## fixed, apparently I was doing something odd, but not certain what it was that
	1404	## caused a commit instead of barfing
[35]	1405
[33]	1406	# get domain id so we can do the records
[37]	1407	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
	1408	$sth->execute($domain);
	1409	($dom_id) = $sth->fetchrow_array();
[33]	1410
[34]	1411	my $res = Net::DNS::Resolver->new;
[35]	1412	$res->nameservers($ifrom);
	1413	$res->axfr_start($domain)
	1414	or die "Couldn't begin AXFR\n";
[34]	1415
[35]	1416	while (my $rr = $res->axfr_next()) {
[33]	1417	my $type = $rr->type;
[35]	1418
[34]	1419	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
[33]	1420	my $vallen = "?,?,?,?,?";
	1421
[37]	1422	$soaflag = 1 if $type eq 'SOA';
	1423	$nsflag = 1 if $type eq 'NS';
[35]	1424
	1425	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
[34]	1426
	1427	# "Primary" types:
	1428	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
	1429	# maybe KEY
	1430
[35]	1431	# nasty big ugly case-like thing here, since we have to do some different
	1432	# processing depending on the record. le sigh.
	1433
[105]	1434	##fixme: what record types other than TXT can/will have >255-byte payloads?
	1435
[34]	1436	if ($type eq 'A') {
	1437	push @vallist, $rr->address;
	1438	} elsif ($type eq 'NS') {
[37]	1439	# hmm. should we warn here if subdomain NS'es are left alone?
	1440	next if ($rwns && ($rr->name eq $domain));
[34]	1441	push @vallist, $rr->nsdname;
[35]	1442	$nsflag = 1;
[34]	1443	} elsif ($type eq 'CNAME') {
	1444	push @vallist, $rr->cname;
	1445	} elsif ($type eq 'SOA') {
[37]	1446	next if $rwsoa;
[34]	1447	$vallist[1] = $rr->mname.":".$rr->rname;
	1448	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
[35]	1449	$soaflag = 1;
[34]	1450	} elsif ($type eq 'PTR') {
[105]	1451	push @vallist, $rr->ptrdname;
[34]	1452	# hmm. PTR records should not be in forward zones.
	1453	} elsif ($type eq 'MX') {
[33]	1454	$sql .= ",distance";
	1455	$vallen .= ",?";
[34]	1456	push @vallist, $rr->exchange;
	1457	push @vallist, $rr->preference;
	1458	} elsif ($type eq 'TXT') {
	1459	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
	1460	## but don't really seem enthusiastic about it.
[105]	1461	my $rrdata = $rr->txtdata;
	1462	if (length($rrdata) > 100 ) {
	1463	# extralong records get an entry in a separate table.
	1464	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($rrdata) );
	1465	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($rrdata) );
	1466	$sql .= ",longrec_id";
	1467	$vallen .= ",?";
	1468	push @vallist, '';
	1469	push @vallist, $longid;
	1470	} else {
	1471	push @vallist, $rrdata;
	1472	}
[34]	1473	} elsif ($type eq 'SPF') {
	1474	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
[105]	1475	my $rrdata = $rr->txtdata;
	1476	if (length($rrdata) > 100 ) {
	1477	# extralong records get an entry in a separate table.
	1478	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($rrdata) );
	1479	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($rrdata) );
	1480	$sql .= ",longrec_id";
	1481	$vallen .= ",?";
	1482	push @vallist, '';
	1483	push @vallist, $longid;
	1484	} else {
	1485	push @vallist, $rrdata;
	1486	}
[34]	1487	} elsif ($type eq 'AAAA') {
	1488	push @vallist, $rr->address;
	1489	} elsif ($type eq 'SRV') {
	1490	$sql .= ",distance,weight,port" if $type eq 'SRV';
	1491	$vallen .= ",?,?,?" if $type eq 'SRV';
[37]	1492	push @vallist, $rr->target;
[34]	1493	push @vallist, $rr->priority;
	1494	push @vallist, $rr->weight;
	1495	push @vallist, $rr->port;
	1496	} elsif ($type eq 'KEY') {
[35]	1497	# we don't actually know what to do with these...
[34]	1498	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
[35]	1499	} else {
[105]	1500	my $rrdata = $rr->rdatastr;
	1501	if (length($rrdata) > 100 ) {
	1502	# extralong records get an entry in a separate table.
	1503	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($rrdata) );
	1504	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($rrdata) );
	1505	$sql .= ",longrec_id";
	1506	$vallen .= ",?";
	1507	push @vallist, '';
	1508	push @vallist, $longid;
	1509	} else {
	1510	push @vallist, $rrdata;
	1511	}
[35]	1512	# Finding a different record type is not fatal.... just problematic.
[37]	1513	# We may not be able to export it correctly.
[35]	1514	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
[33]	1515	}
	1516
[34]	1517	# BIND supports:
	1518	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
	1519	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
	1520	# ... if one can ever find the right magic to format them correctly
	1521
	1522	# Net::DNS supports:
	1523	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
	1524	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
	1525	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
	1526
[37]	1527	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
	1528	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
[34]	1529
[37]	1530	$nrecs++;
[34]	1531
[37]	1532	} # while axfr_next
	1533
	1534	# Overwrite SOA record
	1535	if ($rwsoa) {
	1536	$soaflag = 1;
	1537	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1538	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1539	$sthgetsoa->execute($group,$reverse_typemap{SOA});
	1540	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
	1541	$host =~ s/DOMAIN/$domain/g;
	1542	$val =~ s/DOMAIN/$domain/g;
	1543	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
[34]	1544	}
[37]	1545	}
[34]	1546
[37]	1547	# Overwrite NS records
	1548	if ($rwns) {
	1549	$nsflag = 1;
	1550	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1551	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1552	$sthgetns->execute($group,$reverse_typemap{NS});
	1553	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
	1554	$host =~ s/DOMAIN/$domain/g;
	1555	$val =~ s/DOMAIN/$domain/g;
	1556	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
	1557	}
	1558	}
[34]	1559
[35]	1560	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
	1561	die "Bad zone: No SOA record!\n" if !$soaflag;
	1562	die "Bad zone: No NS records!\n" if !$nsflag;
	1563
[37]	1564	$dbh->commit;
[35]	1565
[33]	1566	};
	1567
	1568	if ($@) {
	1569	my $msg = $@;
	1570	eval { $dbh->rollback; };
[34]	1571	return ('FAIL',$msg." $warnmsg");
[33]	1572	} else {
[35]	1573	return ('WARN', $warnmsg) if $warnmsg;
[91]	1574	return ('OK',"Imported OK");
[33]	1575	}
	1576
[37]	1577	# it should be impossible to get here.
[34]	1578	return ('WARN',"OOOK!");
[33]	1579	} # end importAXFR()
	1580
	1581
[103]	1582	## DNSDB::export()
	1583	# Export the DNS database, or a part of it
	1584	# Takes database handle, export type, optional arguments depending on type
	1585	# Writes zone data to targets as appropriate for type
	1586	sub export {
	1587	my $dbh = shift;
	1588	my $target = shift;
	1589
	1590	if ($target eq 'tiny') {
	1591	__export_tiny($dbh,@_);
	1592	}
	1593	# elsif ($target eq 'foo') {
	1594	# __export_foo($dbh,@_);
	1595	#}
	1596	# etc
	1597
	1598	} # end export()
	1599
	1600
	1601	## DNSDB::__export_tiny
	1602	# Internal sub to implement tinyDNS (compatible) export
	1603	# Takes database handle, filehandle to write export to, optional argument(s)
	1604	# to determine which data gets exported
	1605	sub __export_tiny {
	1606	my $dbh = shift;
	1607	my $datafile = shift;
	1608
	1609	##fixme: slurp up further options to specify particular zone(s) to export
	1610
	1611	## Convert a bare number into an octal-coded pair of octets.
	1612	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
	1613	sub octalize {
	1614	my $tmp = shift;
	1615	my $srctype = shift \|\| 'h'; # default assumes hex string
	1616	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
	1617	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
	1618	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
	1619	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
	1620	}
	1621
	1622	##fixme: fail if $datafile isn't an open, writable file
	1623
	1624	# easy case - export all evarything
	1625	# not-so-easy case - export item(s) specified
	1626	# todo: figure out what kind of list we use to export items
	1627
	1628	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
	1629	my $recsth = $dbh->prepare("SELECT r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl,l.recdata ".
	1630	"FROM records r LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id WHERE domain_id=?");
	1631	$domsth->execute();
	1632	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
	1633	$recsth->execute($domid);
	1634	while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$lval) = $recsth->fetchrow_array) {
[108]	1635	##fixme: need to store location in the db, and retrieve it here.
	1636	# temporarily hardcoded to empty so we can include it further down.
	1637	my $loc = '';
	1638
	1639	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
	1640	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
	1641	# timestamps are TAI64
	1642	# ~~ 2^62 + time()
	1643	my $stamp = '';
	1644
[103]	1645	$val = $lval if $lval;
	1646
	1647	# raw packet in unknown format: first byte indicates length
	1648	# of remaining data, allows up to 255 raw bytes
	1649
	1650	##fixme? append . to all host/val hostnames
	1651	if ($typemap{$type} eq 'SOA') {
	1652
	1653	# host contains pri-ns:responsible
	1654	# val is abused to contain refresh:retry:expire:minttl
	1655	##fixme: "manual" serial vs tinydns-autoserial
[108]	1656	print $datafile "Z$host"."::$val:$ttl:$stamp:$loc\n";
[103]	1657
	1658	} elsif ($typemap{$type} eq 'A') {
	1659
[108]	1660	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
[103]	1661
	1662	} elsif ($typemap{$type} eq 'NS') {
	1663
[108]	1664	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
[103]	1665
	1666	} elsif ($typemap{$type} eq 'AAAA') {
	1667
	1668	print $datafile ":$host:28:";
	1669	my $altgrp = 0;
	1670	my @altconv;
[108]	1671	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
[103]	1672	foreach (split /:/, $val) {
	1673	if (/^$/) {
	1674	# flag blank entry; this is a series of 0's of (currently) unknown length
	1675	$altconv[$altgrp++] = 's';
	1676	} else {
	1677	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
	1678	$altconv[$altgrp++] = octalize($_)
	1679	}
	1680	}
	1681	foreach my $octet (@altconv) {
	1682	# if not 's', output
	1683	print $datafile $octet unless $octet =~ /^s$/;
	1684	# if 's', output (9-array length)x literal '\000\000'
	1685	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
	1686	}
[108]	1687	print $datafile ":$ttl:$stamp:$loc\n";
[103]	1688
	1689	} elsif ($typemap{$type} eq 'MX') {
	1690
[108]	1691	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
[103]	1692
	1693	} elsif ($typemap{$type} eq 'TXT') {
	1694
	1695	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
	1696	$val =~ s/:/\\072/g; # may need to replace other symbols
[108]	1697	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
[103]	1698
	1699	# by-hand TXT
	1700	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
	1701	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
	1702	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
	1703
	1704	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
	1705	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
	1706
	1707	# very long TXT record as brought in by axfr-get
	1708	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
	1709	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
	1710	#:longtxt.deepnet.cx:16:
	1711	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
	1712	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
	1713	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
	1714	#:3600
	1715
	1716	} elsif ($typemap{$type} eq 'CNAME') {
	1717
[108]	1718	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
[103]	1719
	1720	} elsif ($typemap{$type} eq 'SRV') {
	1721
	1722	# data is two-byte values for priority, weight, port, in that order,
	1723	# followed by length/string data
	1724
	1725	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
	1726
	1727	$val .= '.' if $val !~ /\.$/;
	1728	foreach (split /\./, $val) {
	1729	printf $datafile "\\%0.3o%s", length($_), $_;
	1730	}
[108]	1731	print $datafile "\\000:$ttl:$stamp:$loc\n";
[103]	1732
	1733	} elsif ($typemap{$type} eq 'RP') {
	1734
	1735	# RP consists of two mostly free-form strings.
	1736	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
	1737	# The second is the "hostname" of a TXT record with more info.
	1738	print $datafile ":$host:17:";
	1739	my ($who,$what) = split /\s/, $val;
	1740	foreach (split /\./, $who) {
	1741	printf $datafile "\\%0.3o%s", length($_), $_;
	1742	}
	1743	print $datafile '\000';
	1744	foreach (split /\./, $what) {
	1745	printf $datafile "\\%0.3o%s", length($_), $_;
	1746	}
[108]	1747	print $datafile "\\000:$ttl:$stamp:$loc\n";
[103]	1748
	1749	} elsif ($typemap{$type} eq 'PTR') {
	1750
	1751	# must handle both IPv4 and IPv6
	1752	##work
[108]	1753	# data should already be in suitable reverse order.
	1754	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
[103]	1755
[108]	1756	} else {
	1757	# raw record. we don't know what's in here, so we ASS-U-ME the user has
	1758	# put it in correctly, since either the user is messing directly with the
	1759	# database, or the record was imported via AXFR
	1760	# <split by char>
	1761	# convert anything not a-zA-Z0-9.- to octal coding
	1762
	1763	##fixme: add flag to export "unknown" record types - note we'll probably end up
	1764	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
	1765	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
	1766
[103]	1767	} # record type if-else
	1768
	1769	} # while ($recsth)
	1770	} # while ($domsth)
	1771	} # end __export_tiny()
	1772
	1773
[2]	1774	# shut Perl up
	1775	1;

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