Context Navigation

source: trunk/DNSDB.pm@ 122

Last change on this file since 122 was 121, checked in by Kris Deugau, 13 years ago

/trunk

checkpoint
Flesh out getSOA() stub in dns-rpc.cgi
Tweak getSOA() in DNSDB.pm for better error handling

Property svn:keywords set to Date Rev Author Id

File size: 59.4 KB

Rev	Line
[2]	1	# dns/trunk/DNSDB.pm
	2	# Abstraction functions for DNS administration
	3	###
	4	# SVN revision info
	5	# $Date: 2011-09-08 22:09:58 +0000 (Thu, 08 Sep 2011) $
	6	# SVN revision $Rev: 121 $
	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
[117]	36	&getParents
	37	&isParent
[34]	38	&domStatus &importAXFR
[103]	39	&export
[2]	40	%typemap %reverse_typemap
[66]	41	%permissions @permtypes $permlist
[2]	42	);
	43
	44	@EXPORT = (); # Export nothing by default.
	45	%EXPORT_TAGS = ( ALL => [qw(
[67]	46	&initGlobals
	47	&initPermissions &getPermissions &changePermissions &comparePermissions
[112]	48	&changeGroup
[65]	49	&connectDB &finish
[91]	50	&addDomain &delDomain &domainName &domainID
[22]	51	&addGroup &delGroup &getChildren &groupName
[83]	52	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[91]	53	&getSOA &getRecLine &getDomRecs &getRecCount
[22]	54	&addRec &updateRec &delRec
[117]	55	&getParents
	56	&isParent
[34]	57	&domStatus &importAXFR
[103]	58	&export
[2]	59	%typemap %reverse_typemap
[66]	60	%permissions @permtypes $permlist
[2]	61	)]
	62	);
	63
	64	our $group = 1;
	65	our $errstr = '';
	66
	67	# Halfway sane defaults for SOA, TTL, etc.
[101]	68	# serial defaults to 0 for convenience.
	69	# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
[2]	70	our %def = qw (
	71	contact hostmaster.DOMAIN
	72	prins ns1.myserver.com
[101]	73	serial 0
[2]	74	soattl 86400
	75	refresh 10800
	76	retry 3600
	77	expire 604800
	78	minttl 10800
	79	ttl 10800
	80	);
	81
[66]	82	# Arguably defined wholly in the db, but little reason to change without supporting code changes
	83	our @permtypes = qw (
	84	group_edit group_create group_delete
	85	user_edit user_create user_delete
	86	domain_edit domain_create domain_delete
	87	record_edit record_create record_delete
	88	self_edit admin
	89	);
	90	our $permlist = join(',',@permtypes);
	91
[2]	92	# DNS record type map and reverse map.
	93	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
	94	our %typemap;
	95	our %reverse_typemap;
	96
[65]	97	our %permissions;
[55]	98
[2]	99	##
	100	## Initialization and cleanup subs
	101	##
	102
[55]	103
[2]	104	## DNSDB::connectDB()
	105	# Creates connection to DNS database.
	106	# Requires the database name, username, and password.
	107	# Returns a handle to the db.
	108	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	109	# right changes.
	110	sub connectDB {
	111	$errstr = '';
[15]	112	my $dbname = shift;
	113	my $user = shift;
	114	my $pass = shift;
[2]	115	my $dbh;
	116	my $DSN = "DBI:Pg:dbname=$dbname";
	117
	118	my $host = shift;
	119	$DSN .= ";host=$host" if $host;
	120
	121	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
	122	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	123	$dbh = DBI->connect($DSN, $user, $pass, {
	124	AutoCommit => 1,
	125	PrintError => 0
	126	})
	127	or return (undef, $DBI::errstr) if(!$dbh);
	128
	129	# Return here if we can't select. Note that this indicates a
	130	# problem executing the select.
	131	my $sth = $dbh->prepare("select group_id from groups limit 1");
	132	$sth->execute();
	133	return (undef,$DBI::errstr) if ($sth->err);
	134
	135	# See if the select returned anything (or null data). This should
	136	# succeed if the select executed, but...
	137	$sth->fetchrow();
	138	return (undef,$DBI::errstr) if ($sth->err);
	139
	140	$sth->finish;
	141
	142	# If we get here, we should be OK.
	143	return ($dbh,"DB connection OK");
	144	} # end connectDB
	145
	146
	147	## DNSDB::finish()
	148	# Cleans up after database handles and so on.
	149	# Requires a database handle
	150	sub finish {
	151	my $dbh = $_[0];
	152	$dbh->disconnect;
	153	} # end finish
	154
	155
	156	## DNSDB::initGlobals()
	157	# Initialize global variables
	158	# NB: this does NOT include web-specific session variables!
	159	# Requires a database handle
	160	sub initGlobals {
	161	my $dbh = shift;
	162
	163	# load system-wide site defaults and things from config file
[29]	164	if (open SYSDEFAULTS, "</etc/dnsdb.conf") {
[2]	165	##fixme - error check!
[29]	166	while (<SYSDEFAULTS>) {
	167	next if /^\s*#/;
	168	$def{contact} = $1 if /contact ?= ?([a-z0-9_.-]+)/i;
	169	$def{prins} = $1 if /prins ?= ?([a-z0-9_.-]+)/i;
	170	$def{soattl} = $1 if /soattl ?= ?([a-z0-9_.-]+)/i;
	171	$def{refresh} = $1 if /refresh ?= ?([a-z0-9_.-]+)/i;
	172	$def{retry} = $1 if /retry ?= ?([a-z0-9_.-]+)/i;
	173	$def{expire} = $1 if /expire ?= ?([a-z0-9_.-]+)/i;
	174	$def{minttl} = $1 if /minttl ?= ?([a-z0-9_.-]+)/i;
	175	$def{ttl} = $1 if /ttl ?= ?([a-z0-9_.-]+)/i;
[2]	176	##fixme? load DB user/pass from config file?
[29]	177	}
[2]	178	}
	179	# load from database
	180	my $sth = $dbh->prepare("select val,name from rectypes");
	181	$sth->execute;
	182	while (my ($recval,$recname) = $sth->fetchrow_array()) {
	183	$typemap{$recval} = $recname;
	184	$reverse_typemap{$recname} = $recval;
	185	}
	186	} # end initGlobals
	187
	188
[65]	189	## DNSDB::initPermissions()
	190	# Set up permissions global
	191	# Takes database handle and UID
	192	sub initPermissions {
	193	my $dbh = shift;
	194	my $uid = shift;
	195
	196	# %permissions = $(getPermissions($dbh,'user',$uid));
	197	getPermissions($dbh, 'user', $uid, \%permissions);
	198
	199	} # end initPermissions()
	200
	201
	202	## DNSDB::getPermissions()
	203	# Get permissions from DB
	204	# Requires DB handle, group or user flag, ID, and hashref.
	205	sub getPermissions {
	206	my $dbh = shift;
	207	my $type = shift;
	208	my $id = shift;
	209	my $hash = shift;
	210
	211	my $sql = qq(
	212	SELECT
	213	p.admin,p.self_edit,
	214	p.group_create,p.group_edit,p.group_delete,
	215	p.user_create,p.user_edit,p.user_delete,
	216	p.domain_create,p.domain_edit,p.domain_delete,
	217	p.record_create,p.record_edit,p.record_delete
	218	FROM permissions p
	219	);
	220	if ($type eq 'group') {
	221	$sql .= qq(
	222	JOIN groups g ON g.permission_id=p.permission_id
	223	WHERE g.group_id=?
	224	);
	225	} else {
	226	$sql .= qq(
	227	JOIN users u ON u.permission_id=p.permission_id
	228	WHERE u.user_id=?
	229	);
	230	}
	231
	232	my $sth = $dbh->prepare($sql);
	233
	234	$sth->execute($id) or die "argh: ".$sth->errstr;
	235
	236	# my $permref = $sth->fetchrow_hashref;
	237	# return $permref;
	238	# $hash = $permref;
	239	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
	240	($hash->{admin},$hash->{self_edit},
	241	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
	242	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
	243	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
	244	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
	245	= $sth->fetchrow_array;
	246
	247	} # end getPermissions()
	248
	249
	250	## DNSDB::changePermissions()
	251	# Update an ACL entry
	252	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
	253	sub changePermissions {
	254	my $dbh = shift;
	255	my $type = shift;
	256	my $id = shift;
	257	my $newperms = shift;
[87]	258	my $inherit = shift \|\| 0;
[65]	259
[78]	260	my $failmsg = '';
[66]	261
[87]	262	# see if we're switching from inherited to custom. for bonus points,
	263	# snag the permid and parent permid anyway, since we'll need the permid
	264	# to set/alter custom perms, and both if we're switching from custom to
	265	# inherited.
	266	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
[65]	267	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
[66]	268	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
[65]	269	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
	270	$sth->execute($id);
	271
[87]	272	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
[66]	273
[78]	274	# hack phtoui
	275	# group id 1 is "special" in that it's it's own parent (err... possibly.)
	276	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
	277	$wasinherited = 0 if ($type eq 'group' && $id == 1);
	278
[66]	279	local $dbh->{AutoCommit} = 0;
	280	local $dbh->{RaiseError} = 1;
	281
	282	# Wrap all the SQL in a transaction
	283	eval {
[87]	284	if ($inherit) {
	285
	286	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
	287	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
	288	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
	289
	290	} else {
	291
	292	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
[66]	293	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
[87]	294	# ... if'n'when we have groups with fully inherited permissions.
	295	# SQL is coo
	296	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
	297	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
	298	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
	299	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
	300	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
	301	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
[66]	302	}
[78]	303
[87]	304	# and now set the permissions we were passed
	305	foreach (@permtypes) {
	306	if (defined ($newperms->{$_})) {
	307	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
	308	}
	309	}
	310
	311	} # (inherited->)? custom
	312
[66]	313	$dbh->commit;
	314	}; # end eval
	315	if ($@) {
	316	my $msg = $@;
	317	eval { $dbh->rollback; };
[87]	318	return ('FAIL',"$failmsg: $msg ($permid)");
[66]	319	} else {
	320	return ('OK',$permid);
	321	}
	322
[65]	323	} # end changePermissions()
	324
	325
[67]	326	## DNSDB::comparePermissions()
	327	# Compare two permission hashes
	328	# Returns '>', '<', '=', '!'
	329	sub comparePermissions {
	330	my $p1 = shift;
	331	my $p2 = shift;
	332
	333	my $retval = '='; # assume equality until proven otherwise
	334
	335	no warnings "uninitialized";
	336
	337	foreach (@permtypes) {
	338	next if $p1->{$_} == $p2->{$_}; # equal is good
	339	if ($p1->{$_} && !$p2->{$_}) {
	340	if ($retval eq '<') { # if we've already found an unequal pair where
	341	$retval = '!'; # $p2 has more access, and we now find a pair
	342	last; # where $p1 has more access, the overall access
	343	} # is neither greater or lesser, it's unequal.
	344	$retval = '>';
	345	}
	346	if (!$p1->{$_} && $p2->{$_}) {
	347	if ($retval eq '>') { # if we've already found an unequal pair where
	348	$retval = '!'; # $p1 has more access, and we now find a pair
	349	last; # where $p2 has more access, the overall access
	350	} # is neither greater or lesser, it's unequal.
	351	$retval = '<';
	352	}
	353	}
	354	return $retval;
	355	} # end comparePermissions()
	356
	357
[112]	358	## DNSDB::changeGroup()
	359	# Change group ID of an entity
	360	# Takes a database handle, entity type, entity ID, and new group ID
	361	sub changeGroup {
	362	my $dbh = shift;
	363	my $type = shift;
	364	my $id = shift;
	365	my $newgrp = shift;
	366
	367	##fixme: fail on not enough args
	368	#return ('FAIL', "Missing
	369
	370	if ($type eq 'domain') {
	371	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
	372	or return ('FAIL','Group change failed: '.$dbh->errstr);
	373	} elsif ($type eq 'user') {
	374	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
	375	or return ('FAIL','Group change failed: '.$dbh->errstr);
	376	} elsif ($type eq 'group') {
	377	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
	378	or return ('FAIL','Group change failed: '.$dbh->errstr);
	379	}
	380	return ('OK','OK');
	381	} # end changeGroup()
	382
	383
[55]	384	## DNSDB::_log()
	385	# Log an action
	386	# Internal sub
	387	# Takes a database handle, <foo>, <bar>
	388	sub _log {
	389	} # end _log
	390
	391
[2]	392	##
	393	## Processing subs
	394	##
	395
	396	## DNSDB::addDomain()
	397	# Add a domain
	398	# Takes a database handle, domain name, numeric group, and boolean(ish) state (active/inactive)
	399	# Returns a status code and message
	400	sub addDomain {
	401	$errstr = '';
	402	my $dbh = shift;
	403	return ('FAIL',"Need database handle") if !$dbh;
	404	my $domain = shift;
[91]	405	return ('FAIL',"Domain must not be blank") if !$domain;
[2]	406	my $group = shift;
	407	return ('FAIL',"Need group") if !defined($group);
	408	my $state = shift;
	409	return ('FAIL',"Need domain status") if !defined($state);
	410
[116]	411	$state = 1 if $state =~ /^active$/;
	412	$state = 1 if $state =~ /^on$/;
	413	$state = 0 if $state =~ /^inactive$/;
	414	$state = 0 if $state =~ /^off$/;
	415
	416	return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
	417
[38]	418	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[3]	419	my $dom_id;
	420
[38]	421	# quick check to start to see if we've already got one
	422	$sth->execute($domain);
	423	($dom_id) = $sth->fetchrow_array;
	424
	425	return ('FAIL', "Domain already exists") if $dom_id;
	426
[2]	427	# Allow transactions, and raise an exception on errors so we can catch it later.
	428	# Use local to make sure these get "reset" properly on exiting this block
	429	local $dbh->{AutoCommit} = 0;
	430	local $dbh->{RaiseError} = 1;
	431
	432	# Wrap all the SQL in a transaction
	433	eval {
	434	# insert the domain...
	435	my $sth = $dbh->prepare("insert into domains (domain,group_id,status) values (?,?,?)");
	436	$sth->execute($domain,$group,$state);
	437
	438	# get the ID...
	439	$sth = $dbh->prepare("select domain_id from domains where domain='$domain'");
	440	$sth->execute;
[3]	441	($dom_id) = $sth->fetchrow_array();
[2]	442
	443	# ... and now we construct the standard records from the default set. NB: group should be variable.
[3]	444	$sth = $dbh->prepare("select host,type,val,distance,weight,port,ttl from default_records where group_id=$group");
	445	my $sth_in = $dbh->prepare("insert into records (domain_id,host,type,val,distance,weight,port,ttl)".
	446	" values ($dom_id,?,?,?,?,?,?,?)");
[2]	447	$sth->execute;
[3]	448	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
[2]	449	$host =~ s/DOMAIN/$domain/g;
[37]	450	$val =~ s/DOMAIN/$domain/g;
[3]	451	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
[2]	452	}
	453
	454	# once we get here, we should have suceeded.
	455	$dbh->commit;
	456	}; # end eval
	457
	458	if ($@) {
	459	my $msg = $@;
	460	eval { $dbh->rollback; };
	461	return ('FAIL',$msg);
	462	} else {
[3]	463	return ('OK',$dom_id);
[2]	464	}
	465	} # end addDomain
	466
	467
[3]	468	## DNSDB::delDomain()
	469	# Delete a domain.
	470	# for now, just delete the records, then the domain.
	471	# later we may want to archive it in some way instead (status code 2, for example?)
	472	sub delDomain {
	473	my $dbh = shift;
[5]	474	my $domid = shift;
[3]	475
	476	# Allow transactions, and raise an exception on errors so we can catch it later.
	477	# Use local to make sure these get "reset" properly on exiting this block
	478	local $dbh->{AutoCommit} = 0;
	479	local $dbh->{RaiseError} = 1;
	480
[23]	481	my $failmsg = '';
	482
[3]	483	# Wrap all the SQL in a transaction
	484	eval {
[5]	485	my $sth = $dbh->prepare("delete from records where domain_id=?");
[23]	486	$failmsg = "Failure removing domain records";
[5]	487	$sth->execute($domid);
	488	$sth = $dbh->prepare("delete from domains where domain_id=?");
[23]	489	$failmsg = "Failure removing domain";
[5]	490	$sth->execute($domid);
[3]	491
	492	# once we get here, we should have suceeded.
[23]	493	$dbh->commit;
[3]	494	}; # end eval
	495
	496	if ($@) {
	497	my $msg = $@;
	498	eval { $dbh->rollback; };
[23]	499	return ('FAIL',"$failmsg: $msg");
[3]	500	} else {
	501	return ('OK','OK');
	502	}
	503
	504	} # end delDomain()
	505
	506
[2]	507	## DNSDB::domainName()
	508	# Return the domain name based on a domain ID
	509	# Takes a database handle and the domain ID
	510	# Returns the domain name or undef on failure
	511	sub domainName {
	512	$errstr = '';
	513	my $dbh = shift;
	514	my $domid = shift;
[91]	515	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
[2]	516	$errstr = $DBI::errstr if !$domname;
	517	return $domname if $domname;
[91]	518	} # end domainName()
[2]	519
	520
[91]	521	## DNSDB::domainID()
	522	# Takes a database handle and domain name
	523	# Returns the domain ID number
	524	sub domainID {
	525	$errstr = '';
	526	my $dbh = shift;
	527	my $domain = shift;
	528	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
	529	$errstr = $DBI::errstr if !$domid;
	530	return $domid if $domid;
	531	} # end domainID()
	532
	533
[18]	534	## DNSDB::addGroup()
	535	# Add a group
[66]	536	# Takes a database handle, group name, parent group, hashref for permissions,
	537	# and optional template-vs-cloneme flag
[18]	538	# Returns a status code and message
	539	sub addGroup {
	540	$errstr = '';
	541	my $dbh = shift;
[20]	542	my $groupname = shift;
	543	my $pargroup = shift;
[66]	544	my $permissions = shift;
[18]	545
[66]	546	# 0 indicates "custom", hardcoded.
[18]	547	# Any other value clones that group's default records, if it exists.
[66]	548	my $inherit = shift \|\| 0;
	549	##fixme: need a flag to indicate clone records or <?> ?
[18]	550
	551	# Allow transactions, and raise an exception on errors so we can catch it later.
	552	# Use local to make sure these get "reset" properly on exiting this block
	553	local $dbh->{AutoCommit} = 0;
	554	local $dbh->{RaiseError} = 1;
	555
[38]	556	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
	557	my $group_id;
	558
	559	# quick check to start to see if we've already got one
	560	$sth->execute($groupname);
	561	($group_id) = $sth->fetchrow_array;
	562
	563	return ('FAIL', "Group already exists") if $group_id;
	564
[18]	565	# Wrap all the SQL in a transaction
	566	eval {
[38]	567	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
[20]	568	$sth->execute($pargroup,$groupname);
[18]	569
	570	$sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
[20]	571	$sth->execute($groupname);
	572	my ($groupid) = $sth->fetchrow_array();
[18]	573
[66]	574	# Permissions
	575	if ($inherit) {
	576	} else {
	577	my @permvals;
	578	foreach (@permtypes) {
	579	if (!defined ($permissions->{$_})) {
	580	push @permvals, 0;
	581	} else {
	582	push @permvals, $permissions->{$_};
	583	}
	584	}
	585
	586	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
	587	$sth->execute($groupid,@permvals);
	588
	589	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
	590	$sth->execute($groupid);
	591	my ($permid) = $sth->fetchrow_array();
	592
	593	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
	594	} # done permission fiddling
	595
	596	# Default records
[18]	597	$sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
[20]	598	"VALUES ($groupid,?,?,?,?,?,?,?)");
[66]	599	if ($inherit) {
[87]	600	# Duplicate records from parent. Actually relying on inherited records feels
	601	# very fragile, and it would be problematic to roll over at a later time.
[18]	602	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
[87]	603	$sth2->execute($pargroup);
[18]	604	while (my @clonedata = $sth2->fetchrow_array) {
	605	$sth->execute(@clonedata);
	606	}
	607	} else {
[66]	608	##fixme: Hardcoding is Bad, mmmmkaaaay?
[18]	609	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
	610	# could load from a config file, but somewhere along the line we need hardcoded bits.
	611	$sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
	612	$sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
	613	$sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
	614	$sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
	615	$sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
	616	$sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
	617	}
	618
	619	# once we get here, we should have suceeded.
	620	$dbh->commit;
	621	}; # end eval
	622
	623	if ($@) {
	624	my $msg = $@;
	625	eval { $dbh->rollback; };
	626	return ('FAIL',$msg);
	627	} else {
	628	return ('OK','OK');
	629	}
	630
	631	} # end addGroup()
	632
	633
[22]	634	## DNSDB::delGroup()
	635	# Delete a group.
	636	# Takes a group ID
	637	# Returns a status code and message
	638	sub delGroup {
	639	my $dbh = shift;
	640	my $groupid = shift;
	641
	642	# Allow transactions, and raise an exception on errors so we can catch it later.
	643	# Use local to make sure these get "reset" properly on exiting this block
	644	local $dbh->{AutoCommit} = 0;
	645	local $dbh->{RaiseError} = 1;
	646
	647	##fixme: locate "knowable" error conditions and deal with them before the eval
[23]	648	# ... or inside, whatever.
[22]	649	# -> domains still exist in group
	650	# -> ...
[23]	651	my $failmsg = '';
[22]	652
	653	# Wrap all the SQL in a transaction
	654	eval {
[23]	655	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
[22]	656	$sth->execute($groupid);
[23]	657	my ($domcnt) = $sth->fetchrow_array;
	658	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
	659	die "$domcnt domains still in group\n" if $domcnt;
	660
	661	$sth = $dbh->prepare("delete from default_records where group_id=?");
	662	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
	663	$sth->execute($groupid);
[22]	664	$sth = $dbh->prepare("delete from groups where group_id=?");
[23]	665	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
[22]	666	$sth->execute($groupid);
	667
	668	# once we get here, we should have suceeded.
	669	$dbh->commit;
	670	}; # end eval
	671
	672	if ($@) {
	673	my $msg = $@;
	674	eval { $dbh->rollback; };
[23]	675	return ('FAIL',"$failmsg: $msg");
[22]	676	} else {
	677	return ('OK','OK');
	678	}
	679	} # end delGroup()
	680
	681
[19]	682	## DNSDB::getChildren()
	683	# Get a list of all groups whose parent^n is group <n>
[24]	684	# Takes a database handle, group ID, reference to an array to put the group IDs in,
	685	# and an optional flag to return only immediate children or all children-of-children
	686	# default to returning all children
[19]	687	# Calls itself
	688	sub getChildren {
	689	$errstr = '';
	690	my $dbh = shift;
[20]	691	my $rootgroup = shift;
	692	my $groupdest = shift;
[24]	693	my $immed = shift \|\| 'all';
[19]	694
	695	# special break for default group; otherwise we get stuck.
[20]	696	if ($rootgroup == 1) {
[19]	697	# by definition, group 1 is the Root Of All Groups
[24]	698	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
	699	($immed ne 'all' ? " AND parent_group_id=1" : ''));
[19]	700	$sth->execute;
	701	while (my @this = $sth->fetchrow_array) {
[20]	702	push @$groupdest, @this;
[19]	703	}
	704	} else {
	705	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
[20]	706	$sth->execute($rootgroup);
[19]	707	return if $sth->rows == 0;
[20]	708	my @grouplist;
	709	while (my ($group) = $sth->fetchrow_array) {
	710	push @$groupdest, $group;
[24]	711	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
[19]	712	}
	713	}
	714	} # end getChildren()
	715
	716
[20]	717	## DNSDB::groupName()
[17]	718	# Return the group name based on a group ID
	719	# Takes a database handle and the group ID
	720	# Returns the group name or undef on failure
[20]	721	sub groupName {
[13]	722	$errstr = '';
	723	my $dbh = shift;
[20]	724	my $groupid = shift;
	725	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
	726	$sth->execute($groupid);
	727	my ($groupname) = $sth->fetchrow_array();
	728	$errstr = $DBI::errstr if !$groupname;
	729	return $groupname if $groupname;
	730	} # end groupName
[13]	731
	732
[118]	733	## DNSDB::groupID()
	734	# Return the group ID based on the group name
	735	# Takes a database handle and the group name
	736	# Returns the group ID or undef on failure
	737	sub groupID {
	738	$errstr = '';
	739	my $dbh = shift;
	740	my $group = shift;
	741	my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
	742	$errstr = $DBI::errstr if !$grpid;
	743	return $grpid if $grpid;
	744	} # end groupID()
	745
	746
[24]	747	## DNSDB::addUser()
[87]	748	# Add a user.
	749	# Takes a DB handle, username, group ID, password, state (active/inactive).
	750	# Optionally accepts:
	751	# user type (user/admin) - defaults to user
	752	# permissions string - defaults to inherit from group
	753	# three valid forms:
	754	# i - Inherit permissions
	755	# c:<user_id> - Clone permissions from <user_id>
	756	# C:<permission list> - Set these specific permissions
	757	# first name - defaults to username
	758	# last name - defaults to blank
	759	# phone - defaults to blank (could put other data within column def)
[90]	760	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
[24]	761	sub addUser {
	762	$errstr = '';
	763	my $dbh = shift;
	764	my $username = shift;
	765	my $group = shift;
	766	my $pass = shift;
	767	my $state = shift;
[25]	768
[90]	769	return ('FAIL', "Missing one or more required entries") if !defined($state);
	770	return ('FAIL', "Username must not be blank") if !$username;
[87]	771
[25]	772	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
	773
[67]	774	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
	775
[25]	776	my $fname = shift \|\| $username;
[24]	777	my $lname = shift \|\| '';
[25]	778	my $phone = shift \|\| ''; # not going format-check
[24]	779
[38]	780	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
[24]	781	my $user_id;
	782
[38]	783	# quick check to start to see if we've already got one
	784	$sth->execute($username);
	785	($user_id) = $sth->fetchrow_array;
	786
	787	return ('FAIL', "User already exists") if $user_id;
	788
[24]	789	# Allow transactions, and raise an exception on errors so we can catch it later.
	790	# Use local to make sure these get "reset" properly on exiting this block
	791	local $dbh->{AutoCommit} = 0;
	792	local $dbh->{RaiseError} = 1;
	793
[94]	794	my $failmsg = '';
	795
[24]	796	# Wrap all the SQL in a transaction
	797	eval {
[87]	798	# insert the user... note we set inherited perms by default since
	799	# it's simple and cleans up some other bits of state
	800	my $sth = $dbh->prepare("INSERT INTO users ".
	801	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
	802	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
	803	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
[24]	804
	805	# get the ID...
[94]	806	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
[24]	807
[87]	808	# Permissions! Gotta set'em all!
	809	die "Invalid permission string $permstring"
	810	if $permstring !~ /^(?:
	811	i # inherit
	812	\|c:\d+ # clone
	813	# custom. no, the leading , is not a typo
[111]	814	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
[87]	815	)$/x;
	816	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
	817	if ($permstring ne 'i') {
	818	# for cloned or custom permissions, we have to create a new permissions entry.
	819	my $clonesrc = $group;
	820	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
	821	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
	822	"SELECT $permlist,? FROM permissions WHERE permission_id=".
	823	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
	824	undef, ($user_id,$clonesrc) );
	825	$dbh->do("UPDATE users SET permission_id=".
	826	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
	827	"WHERE user_id=?", undef, ($user_id, $user_id) );
	828	}
	829	if ($permstring =~ /^C:/) {
	830	# finally for custom permissions, we set the passed-in permissions (and unset
	831	# any that might have been brought in by the clone operation above)
	832	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
	833	undef, ($user_id) );
	834	foreach (@permtypes) {
	835	if ($permstring =~ /,$_/) {
	836	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
	837	} else {
	838	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
	839	}
	840	}
	841	}
	842
	843	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
	844
[25]	845	##fixme: add another table to hold name/email for log table?
	846
[24]	847	# once we get here, we should have suceeded.
	848	$dbh->commit;
	849	}; # end eval
	850
	851	if ($@) {
	852	my $msg = $@;
	853	eval { $dbh->rollback; };
[87]	854	return ('FAIL',$msg." $failmsg");
[24]	855	} else {
	856	return ('OK',$user_id);
	857	}
	858	} # end addUser
	859
	860
[55]	861	## DNSDB::checkUser()
	862	# Check user/pass combo on login
	863	sub checkUser {
	864	my $dbh = shift;
	865	my $user = shift;
[56]	866	my $inpass = shift;
[55]	867
	868	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
	869	$sth->execute($user);
	870	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
	871	my $loginfailed = 1 if !defined($uid);
	872
	873	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
[56]	874	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
[55]	875	} else {
[56]	876	$loginfailed = 1 if $pass ne $inpass;
[55]	877	}
	878
	879	# nnnngggg
	880	return ($uid, $gid);
	881	} # end checkUser
	882
	883
[83]	884	## DNSDB:: updateUser()
[90]	885	# Update general data about user
[83]	886	sub updateUser {
	887	my $dbh = shift;
[118]	888
	889	##fixme: tweak calling convention so that we can update any given bit of data
[83]	890	my $uid = shift;
	891	my $username = shift;
	892	my $group = shift;
	893	my $pass = shift;
	894	my $state = shift;
[87]	895	my $type = shift \|\| 'u';
[83]	896	my $fname = shift \|\| $username;
	897	my $lname = shift \|\| '';
	898	my $phone = shift \|\| ''; # not going format-check
	899
	900	my $failmsg = '';
	901
	902	# Allow transactions, and raise an exception on errors so we can catch it later.
	903	# Use local to make sure these get "reset" properly on exiting this block
	904	local $dbh->{AutoCommit} = 0;
	905	local $dbh->{RaiseError} = 1;
	906
	907	my $sth;
	908
	909	# Password can be left blank; if so we assume there's one on file.
	910	# Actual blank passwords are bad, mm'kay?
	911	if (!$pass) {
	912	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
	913	$sth->execute($uid);
	914	($pass) = $sth->fetchrow_array;
	915	} else {
	916	$pass = unix_md5_crypt($pass);
	917	}
	918
	919	eval {
	920	my $sth = $dbh->prepare(q(
	921	UPDATE users
	922	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
	923	WHERE user_id=?
	924	)
	925	);
	926	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
	927	$dbh->commit;
	928	};
	929	if ($@) {
	930	my $msg = $@;
	931	eval { $dbh->rollback; };
	932	return ('FAIL',"$failmsg: $msg");
	933	} else {
	934	return ('OK','OK');
	935	}
	936	} # end updateUser()
	937
	938
[24]	939	## DNSDB::delUser()
	940	#
	941	sub delUser {
[25]	942	my $dbh = shift;
	943	return ('FAIL',"Need database handle") if !$dbh;
	944	my $userid = shift;
	945	return ('FAIL',"Missing userid") if !defined($userid);
	946
	947	my $sth = $dbh->prepare("delete from users where user_id=?");
	948	$sth->execute($userid);
	949
	950	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
	951
	952	return ('OK','OK');
	953
[24]	954	} # end delUser
	955
	956
[25]	957	## DNSDB::userFullName()
	958	# Return a pretty string!
	959	# Takes a user_id and optional printf-ish string to indicate which pieces where:
	960	# %u for the username
	961	# %f for the first name
	962	# %l for the last name
	963	# All other text in the passed string will be left as-is.
	964	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
	965	sub userFullName {
	966	$errstr = '';
	967	my $dbh = shift;
	968	my $userid = shift;
	969	my $fullformat = shift \|\| '%f %l (%u)';
	970	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
	971	$sth->execute($userid);
	972	my ($uname,$fname,$lname) = $sth->fetchrow_array();
	973	$errstr = $DBI::errstr if !$uname;
	974
	975	$fullformat =~ s/\%u/$uname/g;
	976	$fullformat =~ s/\%f/$fname/g;
	977	$fullformat =~ s/\%l/$lname/g;
	978
	979	return $fullformat;
	980	} # end userFullName
	981
	982
[51]	983	## DNSDB::userStatus()
	984	# Sets and/or returns a user's status
	985	# Takes a database handle, user ID and optionally a status argument
	986	# Returns undef on errors.
	987	sub userStatus {
	988	my $dbh = shift;
	989	my $id = shift;
	990	my $newstatus = shift;
	991
	992	return undef if $id !~ /^\d+$/;
	993
	994	my $sth;
	995
	996	# ooo, fun! let's see what we were passed for status
	997	if ($newstatus) {
	998	$sth = $dbh->prepare("update users set status=? where user_id=?");
	999	# ass-u-me caller knows what's going on in full
	1000	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	1001	$sth->execute($newstatus,$id);
	1002	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
	1003	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
	1004	}
	1005	}
	1006
	1007	$sth = $dbh->prepare("select status from users where user_id=?");
	1008	$sth->execute($id);
	1009	my ($status) = $sth->fetchrow_array;
	1010	return $status;
	1011	} # end userStatus()
	1012
	1013
[83]	1014	## DNSDB::getUserData()
	1015	# Get misc user data for display
	1016	sub getUserData {
	1017	my $dbh = shift;
	1018	my $uid = shift;
	1019
	1020	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
	1021	"FROM users WHERE user_id=?");
	1022	$sth->execute($uid);
	1023	return $sth->fetchrow_hashref();
	1024
	1025	} # end getUserData()
	1026
	1027
[2]	1028	## DNSDB::getSOA()
	1029	# Return all suitable fields from an SOA record in separate elements of a hash
	1030	# Takes a database handle, default/live flag, and group (default) or domain (live) ID
	1031	sub getSOA {
	1032	$errstr = '';
	1033	my $dbh = shift;
	1034	my $def = shift;
	1035	my $id = shift;
	1036	my %ret;
	1037
[101]	1038	# (ab)use distance and weight columns to store SOA data
	1039
	1040	my $sql = "SELECT record_id,host,val,ttl,distance from";
[2]	1041	if ($def eq 'def' or $def eq 'y') {
[101]	1042	$sql .= " default_records WHERE group_id=? AND type=$reverse_typemap{SOA}";
[2]	1043	} else {
	1044	# we're editing a live SOA record; find based on domain
[101]	1045	$sql .= " records WHERE domain_id=? AND type=$reverse_typemap{SOA}";
[2]	1046	}
	1047	my $sth = $dbh->prepare($sql);
[101]	1048	$sth->execute($id);
[2]	1049
[121]	1050	my ($recid,$host,$val,$ttl,$serial) = $sth->fetchrow_array() or return;
[2]	1051	my ($prins,$contact) = split /:/, $host;
	1052	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
	1053
	1054	$ret{recid} = $recid;
	1055	$ret{ttl} = $ttl;
[101]	1056	$ret{serial} = $serial;
[2]	1057	$ret{prins} = $prins;
	1058	$ret{contact} = $contact;
	1059	$ret{refresh} = $refresh;
	1060	$ret{retry} = $retry;
	1061	$ret{expire} = $expire;
	1062	$ret{minttl} = $minttl;
	1063
	1064	return %ret;
	1065	} # end getSOA()
	1066
	1067
	1068	## DNSDB::getRecLine()
	1069	# Return all data fields for a zone record in separate elements of a hash
	1070	# Takes a database handle, default/live flag, and record ID
	1071	sub getRecLine {
	1072	$errstr = '';
	1073	my $dbh = shift;
	1074	my $def = shift;
	1075	my $id = shift;
	1076
[90]	1077	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl,r.longrec_id,l.recdata".
	1078	(($def eq 'def' or $def eq 'y') ? ',r.group_id FROM default_' : ',r.domain_id FROM ').
	1079	"records r LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id WHERE record_id=?";
	1080	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) ) or warn $dbh->errstr;
[2]	1081
[90]	1082	if ($dbh->err) {
[2]	1083	$errstr = $DBI::errstr;
	1084	return undef;
	1085	}
	1086
[90]	1087	$ret->{val} = $ret->{recdata} if $ret->{longrec_id}; # put the long data in the real value space
	1088	delete $ret->{longrec_id}; # remove these since they shouldn't be exposed - the caller
	1089	delete $ret->{recdata}; # should not care about "long records" vs normal ones.
[107]	1090	$ret->{parid} = (($def eq 'def' or $def eq 'y') ? $ret->{group_id} : $ret->{domain_id});
[90]	1091
	1092	return $ret;
[2]	1093	}
	1094
	1095
	1096	##fixme: should use above (getRecLine()) to get lines for below?
	1097	## DNSDB::getDomRecs()
	1098	# Return records for a domain
	1099	# Takes a database handle, default/live flag, group/domain ID, start,
	1100	# number of records, sort field, and sort order
	1101	# Returns a reference to an array of hashes
	1102	sub getDomRecs {
	1103	$errstr = '';
	1104	my $dbh = shift;
	1105	my $type = shift;
	1106	my $id = shift;
[4]	1107	my $nrecs = shift \|\| 'all';
	1108	my $nstart = shift \|\| 0;
[2]	1109
[4]	1110	## for order, need to map input to column names
	1111	my $order = shift \|\| 'host';
[72]	1112	my $direction = shift \|\| 'ASC';
[4]	1113
[90]	1114	$type = 'y' if $type eq 'def';
	1115
	1116	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 ";
	1117	$sql .= "default_" if $type eq 'y';
	1118	$sql .= "records r ";
[104]	1119	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
[90]	1120	$sql .= "LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id ";
	1121	if ($type eq 'y') {
	1122	$sql .= "WHERE r.group_id=?";
[2]	1123	} else {
[90]	1124	$sql .= "WHERE r.domain_id=?";
[2]	1125	}
[104]	1126	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
	1127	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
	1128	$sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
[90]	1129	$sql .= " LIMIT $nrecs OFFSET ".($nstart*$nrecs) if $nstart ne 'all';
[4]	1130
[90]	1131	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
	1132	$sth->execute($id) or warn "$sql: ".$sth->errstr;
[2]	1133
	1134	my @retbase;
	1135	while (my $ref = $sth->fetchrow_hashref()) {
[90]	1136	$ref->{val} = $ref->{recdata} if $ref->{longrec_id}; # put the long data in the real value space
	1137	delete $ref->{longrec_id}; # remove these since they shouldn't be exposed - the caller
	1138	delete $ref->{recdata}; # should not care about "long records" vs normal ones.
[2]	1139	push @retbase, $ref;
	1140	}
	1141
	1142	my $ret = \@retbase;
	1143	return $ret;
	1144	} # end getDomRecs()
	1145
	1146
[91]	1147	## DNSDB::getRecCount()
	1148	# Return count of non-SOA records in domain (or default records in a group)
	1149	# Takes a database handle, default/live flag and group/domain ID
	1150	# Returns the count
	1151	sub getRecCount {
	1152	my $dbh = shift;
	1153	my $defrec = shift;
	1154	my $id = shift;
	1155
	1156	my ($count) = $dbh->selectrow_array("SELECT count(*) FROM ".
	1157	($defrec eq 'y' ? 'default_' : '')."records ".
	1158	"WHERE ".($defrec eq 'y' ? 'group' : 'domain')."_id=? ".
	1159	"AND NOT type=$reverse_typemap{SOA}", undef, ($id) );
	1160
	1161	return $count;
	1162
	1163	} # end getRecCount()
	1164
	1165
[3]	1166	## DNSDB::addRec()
[2]	1167	# Add a new record to a domain or a group's default records
	1168	# Takes a database handle, default/live flag, group/domain ID,
	1169	# host, type, value, and TTL
	1170	# Some types require additional detail: "distance" for MX and SRV,
	1171	# and weight/port for SRV
	1172	# Returns a status code and detail message in case of error
	1173	sub addRec {
	1174	$errstr = '';
	1175	my $dbh = shift;
	1176	my $defrec = shift;
	1177	my $id = shift;
	1178
	1179	my $host = shift;
	1180	my $rectype = shift;
	1181	my $val = shift;
	1182	my $ttl = shift;
	1183
	1184	my $fields = ($defrec eq 'y' ? 'group_id' : 'domain_id').",host,type,val,ttl";
[24]	1185	my $vallen = "?,?,?,?,?";
	1186	my @vallist = ($id,$host,$rectype,$val,$ttl);
[2]	1187
	1188	my $dist;
	1189	if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
	1190	$dist = shift;
	1191	return ('FAIL',"Need distance for $typemap{$rectype} record") if !defined($dist);
	1192	$fields .= ",distance";
[24]	1193	$vallen .= ",?";
	1194	push @vallist, $dist;
[2]	1195	}
	1196	my $weight;
	1197	my $port;
	1198	if ($rectype == $reverse_typemap{SRV}) {
[24]	1199	# check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
	1200	# it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
	1201	return ('FAIL',"SRV records must begin with _service._protocol")
	1202	if $host !~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-z0-9-]+/;
[2]	1203	$weight = shift;
	1204	$port = shift;
	1205	return ('FAIL',"Need weight and port for SRV record") if !defined($weight) or !defined($port);
	1206	$fields .= ",weight,port";
[24]	1207	$vallen .= ",?,?";
	1208	push @vallist, ($weight,$port);
[2]	1209	}
	1210
[90]	1211	# Allow transactions, and raise an exception on errors so we can catch it later.
	1212	# Use local to make sure these get "reset" properly on exiting this block
	1213	local $dbh->{AutoCommit} = 0;
	1214	local $dbh->{RaiseError} = 1;
[2]	1215
[90]	1216	eval {
	1217	if (length($val) > 100 ) {
	1218	# extralong records get an entry in a separate table.
	1219	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($val) );
	1220	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($val) );
	1221	$fields .= ",longrec_id";
	1222	$vallen .= ",?";
	1223	push @vallist, $longid;
	1224	$vallist[3] = ''; # so we don't barf when we insert the main record
	1225	}
	1226	$dbh->do("INSERT INTO ".($defrec eq 'y' ? 'default_' : '')."records ($fields) VALUES ($vallen)",
	1227	undef, @vallist);
	1228	$dbh->commit;
	1229	};
	1230	if ($@) {
	1231	my $msg = $@;
	1232	eval { $dbh->rollback; };
	1233	return ('FAIL',$msg);
	1234	}
[2]	1235
	1236	return ('OK','OK');
[90]	1237
[2]	1238	} # end addRec()
	1239
	1240
[16]	1241	## DNSDB::updateRec()
	1242	# Update a record
	1243	sub updateRec {
	1244	$errstr = '';
[17]	1245
[16]	1246	my $dbh = shift;
	1247	my $defrec = shift;
	1248	my $id = shift;
	1249
	1250	# all records have these
	1251	my $host = shift;
	1252	my $type = shift;
	1253	my $val = shift;
	1254	my $ttl = shift;
	1255
	1256	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
	1257
	1258	# only MX and SRV will use these
	1259	my $dist = 0;
	1260	my $weight = 0;
	1261	my $port = 0;
	1262
	1263	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
[17]	1264	$dist = shift;
	1265	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
[16]	1266	if ($type == $reverse_typemap{SRV}) {
[17]	1267	$weight = shift;
	1268	return ('FAIL',"SRV requires weight") if !defined($weight);
	1269	$port = shift;
	1270	return ('FAIL',"SRV requires port") if !defined($port);
[16]	1271	}
	1272	}
	1273
[90]	1274	# 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 ";
	1275	# $sql .= "default_" if $type eq 'y';
	1276	# $sql .= "records r ";
	1277	# $sql .= "LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id ";
[16]	1278
[90]	1279	# get the long record ID, if any
	1280	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM ".($defrec eq 'y' ? 'default_' : '')."records ".
	1281	"WHERE record_id=?", undef, ($id) );
[16]	1282
[90]	1283	local $dbh->{AutoCommit} = 0;
	1284	local $dbh->{RaiseError} = 1;
	1285
	1286	eval {
	1287	# there's really no tidy way to squash this down. :/
	1288	if (length($val) > 100) {
	1289	if ($longid) {
	1290	$dbh->do("UPDATE longrecs SET recdata=? WHERE longrec_id=?", undef, ($val, $longid) );
	1291	} else {
	1292	##fixme: has to be a better way to be sure we get the right recid back once inserted...
	1293	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($val) );
	1294	my ($newlongid) = $dbh->selectrow_array("SELECT currval('longrecs_longrec_id_seq')");
	1295	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records SET val=?,longrec_id=? ".
	1296	"WHERE record_id=?", undef, ('', $newlongid, $id) );
	1297	}
	1298	} else {
	1299	if ($longid) {
	1300	$dbh->do("DELETE FROM longrecs WHERE longrec_id=?", undef, ($longid) );
	1301	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records SET val=?,longrec_id=NULL ".
	1302	"WHERE record_id=?", undef, ($val, $id) );
	1303	} else {
	1304	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records SET val=? ".
	1305	"WHERE record_id=?", undef, ($val, $id) );
	1306	}
	1307	}
	1308
	1309	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
	1310	"SET host=?,type=?,ttl=?,distance=?,weight=?,port=? ".
	1311	"WHERE record_id=?", undef, ($host, $type, $ttl, $dist, $weight, $port, $id) );
	1312
	1313	};
	1314	if ($@) {
	1315	my $msg = $@;
	1316	$dbh->rollback;
	1317	return ('FAIL', $msg);
	1318	}
	1319	# return ('FAIL',$sth->errstr."<br>\n$errstr<br>\n") if $sth->err;
	1320
[16]	1321	return ('OK','OK');
	1322	} # end updateRec()
	1323
	1324
[3]	1325	## DNSDB::delRec()
	1326	# Delete a record.
	1327	sub delRec {
	1328	$errstr = '';
	1329	my $dbh = shift;
	1330	my $defrec = shift;
	1331	my $id = shift;
	1332
[62]	1333	my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
[3]	1334	$sth->execute($id);
	1335
[23]	1336	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
[3]	1337
	1338	return ('OK','OK');
	1339	} # end delRec()
	1340
	1341
[117]	1342	# Reference hashes.
	1343	my %par_tbl = (
	1344	group => 'groups',
	1345	user => 'users',
	1346	defrec => 'default_records',
	1347	domain => 'domains',
	1348	record => 'records'
	1349	);
	1350	my %id_col = (
	1351	group => 'group_id',
	1352	user => 'user_id',
	1353	defrec => 'record_id',
	1354	domain => 'domain_id',
	1355	record => 'record_id'
	1356	);
	1357	my %par_col = (
	1358	group => 'parent_group_id',
	1359	user => 'group_id',
	1360	defrec => 'group_id',
	1361	domain => 'group_id',
	1362	record => 'domain_id'
	1363	);
	1364	my %par_type = (
	1365	group => 'group',
	1366	user => 'group',
	1367	defrec => 'group',
	1368	domain => 'group',
	1369	record => 'domain'
	1370	);
	1371
[116]	1372	## DNSDB::getParents()
	1373	# Find out which entities are parent to the requested id
	1374	# Returns arrayref containing hash pairs of id/type
	1375	sub getParents {
	1376	my $dbh = shift;
	1377	my $id = shift;
	1378	my $type = shift;
[117]	1379	my $depth = shift \|\| 'all'; # valid values: 'all', 'immed', <int> (stop at this group ID)
[116]	1380
[117]	1381	my @parlist;
[116]	1382
[117]	1383	while (1) {
	1384	my $result = $dbh->selectrow_hashref("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
	1385	undef, ($id) );
	1386	unshift @parlist, ($result->{$par_col{$type}} => $par_type{$type});
	1387	last if $result->{$par_col{$type}} == 1; # group 1 is its own parent
	1388	$type = $par_type{$type};
	1389	$id = $result->{$par_col{$type}};
[116]	1390	}
	1391
[117]	1392	return \@parlist;
[116]	1393
	1394	} # end getParents()
	1395
	1396
[117]	1397	## DNSDB::isParent()
	1398	# Returns true if $id1 is a parent of $id2, false otherwise
	1399	sub isParent {
	1400	my $dbh = shift;
	1401	my $id1 = shift;
	1402	my $type1 = shift;
	1403	my $id2 = shift;
	1404	my $type2 = shift;
	1405	##todo: immediate, secondary, full (default)
	1406
	1407	# Return false on impossible relations
	1408	return 0 if $type1 eq 'record'; # nothing may be a child of a record
	1409	return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
	1410	return 0 if $type1 eq 'user'; # nothing may be child of a user
	1411	return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
	1412
	1413	# group 1 is the ultimate root parent
	1414	return 1 if $type1 eq 'group' && $id1 == 1;
	1415
	1416	# almost the same loop as getParents() above
	1417	my $id = $id2;
	1418	my $type = $type2;
	1419	my $foundparent = 0;
	1420	my $tmp = 0;
	1421	while (1) {
	1422	my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
	1423	my $result = $dbh->selectrow_hashref($sql,
	1424	undef, ($id) ) or warn $dbh->errstr." $sql";
	1425	if ($result->{$par_col{$type}} == $id1) {
	1426	$foundparent = 1;
	1427	last;
	1428	}
	1429	# group 1 is its own parent. need this here more to break strange loops than for detecting a parent
	1430	last if $result->{$par_col{$type}} == 1;
	1431	$type = $par_type{$type};
	1432	$id = $result->{$par_col{$type}};
	1433	last if $tmp++ > 10;
	1434	}
	1435
	1436	return $foundparent;
	1437	} # end isParent()
	1438
	1439
[3]	1440	## DNSDB::domStatus()
	1441	# Sets and/or returns a domain's status
	1442	# Takes a database handle, domain ID and optionally a status argument
	1443	# Returns undef on errors.
	1444	sub domStatus {
	1445	my $dbh = shift;
	1446	my $id = shift;
	1447	my $newstatus = shift;
	1448
	1449	return undef if $id !~ /^\d+$/;
	1450
	1451	my $sth;
	1452
	1453	# ooo, fun! let's see what we were passed for status
	1454	if ($newstatus) {
	1455	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
	1456	# ass-u-me caller knows what's going on in full
	1457	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	1458	$sth->execute($newstatus,$id);
	1459	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
	1460	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
	1461	}
	1462	}
	1463
	1464	$sth = $dbh->prepare("select status from domains where domain_id=?");
	1465	$sth->execute($id);
	1466	my ($status) = $sth->fetchrow_array;
	1467	return $status;
	1468	} # end domStatus()
	1469
	1470
[33]	1471	## DNSDB::importAXFR
	1472	# Import a domain via AXFR
[37]	1473	# Takes AXFR host, domain to transfer, group to put the domain in,
	1474	# and optionally:
	1475	# - active/inactive state flag (defaults to active)
	1476	# - overwrite-SOA flag (defaults to off)
	1477	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
	1478	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
	1479	# if status is OK, but WARN includes conditions that are not fatal but should
	1480	# really be reported.
[33]	1481	sub importAXFR {
	1482	my $dbh = shift;
[35]	1483	my $ifrom_in = shift;
[33]	1484	my $domain = shift;
	1485	my $group = shift;
	1486	my $status = shift \|\| 1;
	1487	my $rwsoa = shift \|\| 0;
	1488	my $rwns = shift \|\| 0;
[37]	1489
[33]	1490	##fixme: add mode to delete&replace, merge+overwrite, merge new?
	1491
[37]	1492	my $nrecs = 0;
	1493	my $soaflag = 0;
	1494	my $nsflag = 0;
	1495	my $warnmsg = '';
	1496	my $ifrom;
[33]	1497
[35]	1498	# choke on possible bad setting in ifrom
[37]	1499	# IPv4 and v6, and valid hostnames!
[35]	1500	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1501	return ('FAIL', "Bad AXFR source host $ifrom")
	1502	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1503
[33]	1504	# Allow transactions, and raise an exception on errors so we can catch it later.
	1505	# Use local to make sure these get "reset" properly on exiting this block
	1506	local $dbh->{AutoCommit} = 0;
	1507	local $dbh->{RaiseError} = 1;
	1508
[37]	1509	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[34]	1510	my $dom_id;
	1511
[35]	1512	# quick check to start to see if we've already got one
[37]	1513	$sth->execute($domain);
	1514	($dom_id) = $sth->fetchrow_array;
[35]	1515
	1516	return ('FAIL', "Domain already exists") if $dom_id;
	1517
[33]	1518	eval {
	1519	# can't do this, can't nest transactions. sigh.
[35]	1520	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
[33]	1521
	1522	##fixme: serial
[37]	1523	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
	1524	$sth->execute($domain,$group,$status);
[33]	1525
[35]	1526	## bizarre DBI<->Net::DNS interaction bug:
	1527	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
[37]	1528	## fixed, apparently I was doing something odd, but not certain what it was that
	1529	## caused a commit instead of barfing
[35]	1530
[33]	1531	# get domain id so we can do the records
[37]	1532	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
	1533	$sth->execute($domain);
	1534	($dom_id) = $sth->fetchrow_array();
[33]	1535
[34]	1536	my $res = Net::DNS::Resolver->new;
[35]	1537	$res->nameservers($ifrom);
	1538	$res->axfr_start($domain)
	1539	or die "Couldn't begin AXFR\n";
[34]	1540
[35]	1541	while (my $rr = $res->axfr_next()) {
[33]	1542	my $type = $rr->type;
[35]	1543
[34]	1544	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
[33]	1545	my $vallen = "?,?,?,?,?";
	1546
[37]	1547	$soaflag = 1 if $type eq 'SOA';
	1548	$nsflag = 1 if $type eq 'NS';
[35]	1549
	1550	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
[34]	1551
	1552	# "Primary" types:
	1553	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
	1554	# maybe KEY
	1555
[35]	1556	# nasty big ugly case-like thing here, since we have to do some different
	1557	# processing depending on the record. le sigh.
	1558
[105]	1559	##fixme: what record types other than TXT can/will have >255-byte payloads?
	1560
[34]	1561	if ($type eq 'A') {
	1562	push @vallist, $rr->address;
	1563	} elsif ($type eq 'NS') {
[37]	1564	# hmm. should we warn here if subdomain NS'es are left alone?
	1565	next if ($rwns && ($rr->name eq $domain));
[34]	1566	push @vallist, $rr->nsdname;
[35]	1567	$nsflag = 1;
[34]	1568	} elsif ($type eq 'CNAME') {
	1569	push @vallist, $rr->cname;
	1570	} elsif ($type eq 'SOA') {
[37]	1571	next if $rwsoa;
[34]	1572	$vallist[1] = $rr->mname.":".$rr->rname;
	1573	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
[35]	1574	$soaflag = 1;
[34]	1575	} elsif ($type eq 'PTR') {
[105]	1576	push @vallist, $rr->ptrdname;
[34]	1577	# hmm. PTR records should not be in forward zones.
	1578	} elsif ($type eq 'MX') {
[33]	1579	$sql .= ",distance";
	1580	$vallen .= ",?";
[34]	1581	push @vallist, $rr->exchange;
	1582	push @vallist, $rr->preference;
	1583	} elsif ($type eq 'TXT') {
	1584	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
	1585	## but don't really seem enthusiastic about it.
[105]	1586	my $rrdata = $rr->txtdata;
	1587	if (length($rrdata) > 100 ) {
	1588	# extralong records get an entry in a separate table.
	1589	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($rrdata) );
	1590	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($rrdata) );
	1591	$sql .= ",longrec_id";
	1592	$vallen .= ",?";
	1593	push @vallist, '';
	1594	push @vallist, $longid;
	1595	} else {
	1596	push @vallist, $rrdata;
	1597	}
[34]	1598	} elsif ($type eq 'SPF') {
	1599	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
[105]	1600	my $rrdata = $rr->txtdata;
	1601	if (length($rrdata) > 100 ) {
	1602	# extralong records get an entry in a separate table.
	1603	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($rrdata) );
	1604	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($rrdata) );
	1605	$sql .= ",longrec_id";
	1606	$vallen .= ",?";
	1607	push @vallist, '';
	1608	push @vallist, $longid;
	1609	} else {
	1610	push @vallist, $rrdata;
	1611	}
[34]	1612	} elsif ($type eq 'AAAA') {
	1613	push @vallist, $rr->address;
	1614	} elsif ($type eq 'SRV') {
	1615	$sql .= ",distance,weight,port" if $type eq 'SRV';
	1616	$vallen .= ",?,?,?" if $type eq 'SRV';
[37]	1617	push @vallist, $rr->target;
[34]	1618	push @vallist, $rr->priority;
	1619	push @vallist, $rr->weight;
	1620	push @vallist, $rr->port;
	1621	} elsif ($type eq 'KEY') {
[35]	1622	# we don't actually know what to do with these...
[34]	1623	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
[35]	1624	} else {
[105]	1625	my $rrdata = $rr->rdatastr;
	1626	if (length($rrdata) > 100 ) {
	1627	# extralong records get an entry in a separate table.
	1628	$dbh->do("INSERT INTO longrecs (recdata) VALUES (?)", undef, ($rrdata) );
	1629	my ($longid) = $dbh->selectrow_array("SELECT longrec_id FROM longrecs WHERE recdata=?", undef, ($rrdata) );
	1630	$sql .= ",longrec_id";
	1631	$vallen .= ",?";
	1632	push @vallist, '';
	1633	push @vallist, $longid;
	1634	} else {
	1635	push @vallist, $rrdata;
	1636	}
[35]	1637	# Finding a different record type is not fatal.... just problematic.
[37]	1638	# We may not be able to export it correctly.
[35]	1639	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
[33]	1640	}
	1641
[34]	1642	# BIND supports:
	1643	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
	1644	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
	1645	# ... if one can ever find the right magic to format them correctly
	1646
	1647	# Net::DNS supports:
	1648	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
	1649	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
	1650	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
	1651
[37]	1652	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
	1653	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
[34]	1654
[37]	1655	$nrecs++;
[34]	1656
[37]	1657	} # while axfr_next
	1658
	1659	# Overwrite SOA record
	1660	if ($rwsoa) {
	1661	$soaflag = 1;
	1662	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1663	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1664	$sthgetsoa->execute($group,$reverse_typemap{SOA});
	1665	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
	1666	$host =~ s/DOMAIN/$domain/g;
	1667	$val =~ s/DOMAIN/$domain/g;
	1668	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
[34]	1669	}
[37]	1670	}
[34]	1671
[37]	1672	# Overwrite NS records
	1673	if ($rwns) {
	1674	$nsflag = 1;
	1675	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1676	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1677	$sthgetns->execute($group,$reverse_typemap{NS});
	1678	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
	1679	$host =~ s/DOMAIN/$domain/g;
	1680	$val =~ s/DOMAIN/$domain/g;
	1681	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
	1682	}
	1683	}
[34]	1684
[35]	1685	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
	1686	die "Bad zone: No SOA record!\n" if !$soaflag;
	1687	die "Bad zone: No NS records!\n" if !$nsflag;
	1688
[37]	1689	$dbh->commit;
[35]	1690
[33]	1691	};
	1692
	1693	if ($@) {
	1694	my $msg = $@;
	1695	eval { $dbh->rollback; };
[34]	1696	return ('FAIL',$msg." $warnmsg");
[33]	1697	} else {
[35]	1698	return ('WARN', $warnmsg) if $warnmsg;
[91]	1699	return ('OK',"Imported OK");
[33]	1700	}
	1701
[37]	1702	# it should be impossible to get here.
[34]	1703	return ('WARN',"OOOK!");
[33]	1704	} # end importAXFR()
	1705
	1706
[103]	1707	## DNSDB::export()
	1708	# Export the DNS database, or a part of it
	1709	# Takes database handle, export type, optional arguments depending on type
	1710	# Writes zone data to targets as appropriate for type
	1711	sub export {
	1712	my $dbh = shift;
	1713	my $target = shift;
	1714
	1715	if ($target eq 'tiny') {
	1716	__export_tiny($dbh,@_);
	1717	}
	1718	# elsif ($target eq 'foo') {
	1719	# __export_foo($dbh,@_);
	1720	#}
	1721	# etc
	1722
	1723	} # end export()
	1724
	1725
	1726	## DNSDB::__export_tiny
	1727	# Internal sub to implement tinyDNS (compatible) export
	1728	# Takes database handle, filehandle to write export to, optional argument(s)
	1729	# to determine which data gets exported
	1730	sub __export_tiny {
	1731	my $dbh = shift;
	1732	my $datafile = shift;
	1733
	1734	##fixme: slurp up further options to specify particular zone(s) to export
	1735
	1736	## Convert a bare number into an octal-coded pair of octets.
	1737	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
	1738	sub octalize {
	1739	my $tmp = shift;
	1740	my $srctype = shift \|\| 'h'; # default assumes hex string
	1741	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
	1742	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
	1743	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
	1744	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
	1745	}
	1746
	1747	##fixme: fail if $datafile isn't an open, writable file
	1748
	1749	# easy case - export all evarything
	1750	# not-so-easy case - export item(s) specified
	1751	# todo: figure out what kind of list we use to export items
	1752
	1753	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
	1754	my $recsth = $dbh->prepare("SELECT r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl,l.recdata ".
	1755	"FROM records r LEFT OUTER JOIN longrecs l ON r.longrec_id=l.longrec_id WHERE domain_id=?");
	1756	$domsth->execute();
	1757	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
	1758	$recsth->execute($domid);
	1759	while (my ($host,$type,$val,$dist,$weight,$port,$ttl,$lval) = $recsth->fetchrow_array) {
[108]	1760	##fixme: need to store location in the db, and retrieve it here.
	1761	# temporarily hardcoded to empty so we can include it further down.
	1762	my $loc = '';
	1763
	1764	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
	1765	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
	1766	# timestamps are TAI64
	1767	# ~~ 2^62 + time()
	1768	my $stamp = '';
	1769
[103]	1770	$val = $lval if $lval;
	1771
	1772	# raw packet in unknown format: first byte indicates length
	1773	# of remaining data, allows up to 255 raw bytes
	1774
	1775	##fixme? append . to all host/val hostnames
	1776	if ($typemap{$type} eq 'SOA') {
	1777
	1778	# host contains pri-ns:responsible
	1779	# val is abused to contain refresh:retry:expire:minttl
	1780	##fixme: "manual" serial vs tinydns-autoserial
[108]	1781	print $datafile "Z$host"."::$val:$ttl:$stamp:$loc\n";
[103]	1782
	1783	} elsif ($typemap{$type} eq 'A') {
	1784
[108]	1785	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
[103]	1786
	1787	} elsif ($typemap{$type} eq 'NS') {
	1788
[108]	1789	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
[103]	1790
	1791	} elsif ($typemap{$type} eq 'AAAA') {
	1792
	1793	print $datafile ":$host:28:";
	1794	my $altgrp = 0;
	1795	my @altconv;
[108]	1796	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
[103]	1797	foreach (split /:/, $val) {
	1798	if (/^$/) {
	1799	# flag blank entry; this is a series of 0's of (currently) unknown length
	1800	$altconv[$altgrp++] = 's';
	1801	} else {
	1802	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
	1803	$altconv[$altgrp++] = octalize($_)
	1804	}
	1805	}
	1806	foreach my $octet (@altconv) {
	1807	# if not 's', output
	1808	print $datafile $octet unless $octet =~ /^s$/;
	1809	# if 's', output (9-array length)x literal '\000\000'
	1810	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
	1811	}
[108]	1812	print $datafile ":$ttl:$stamp:$loc\n";
[103]	1813
	1814	} elsif ($typemap{$type} eq 'MX') {
	1815
[108]	1816	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
[103]	1817
	1818	} elsif ($typemap{$type} eq 'TXT') {
	1819
	1820	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
	1821	$val =~ s/:/\\072/g; # may need to replace other symbols
[108]	1822	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
[103]	1823
	1824	# by-hand TXT
	1825	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
	1826	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
	1827	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
	1828
	1829	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
	1830	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
	1831
	1832	# very long TXT record as brought in by axfr-get
	1833	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
	1834	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
	1835	#:longtxt.deepnet.cx:16:
	1836	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
	1837	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
	1838	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
	1839	#:3600
	1840
	1841	} elsif ($typemap{$type} eq 'CNAME') {
	1842
[108]	1843	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
[103]	1844
	1845	} elsif ($typemap{$type} eq 'SRV') {
	1846
	1847	# data is two-byte values for priority, weight, port, in that order,
	1848	# followed by length/string data
	1849
	1850	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
	1851
	1852	$val .= '.' if $val !~ /\.$/;
	1853	foreach (split /\./, $val) {
	1854	printf $datafile "\\%0.3o%s", length($_), $_;
	1855	}
[108]	1856	print $datafile "\\000:$ttl:$stamp:$loc\n";
[103]	1857
	1858	} elsif ($typemap{$type} eq 'RP') {
	1859
	1860	# RP consists of two mostly free-form strings.
	1861	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
	1862	# The second is the "hostname" of a TXT record with more info.
	1863	print $datafile ":$host:17:";
	1864	my ($who,$what) = split /\s/, $val;
	1865	foreach (split /\./, $who) {
	1866	printf $datafile "\\%0.3o%s", length($_), $_;
	1867	}
	1868	print $datafile '\000';
	1869	foreach (split /\./, $what) {
	1870	printf $datafile "\\%0.3o%s", length($_), $_;
	1871	}
[108]	1872	print $datafile "\\000:$ttl:$stamp:$loc\n";
[103]	1873
	1874	} elsif ($typemap{$type} eq 'PTR') {
	1875
	1876	# must handle both IPv4 and IPv6
	1877	##work
[108]	1878	# data should already be in suitable reverse order.
	1879	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
[103]	1880
[108]	1881	} else {
	1882	# raw record. we don't know what's in here, so we ASS-U-ME the user has
	1883	# put it in correctly, since either the user is messing directly with the
	1884	# database, or the record was imported via AXFR
	1885	# <split by char>
	1886	# convert anything not a-zA-Z0-9.- to octal coding
	1887
	1888	##fixme: add flag to export "unknown" record types - note we'll probably end up
	1889	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
	1890	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
	1891
[103]	1892	} # record type if-else
	1893
	1894	} # while ($recsth)
	1895	} # while ($domsth)
	1896	} # end __export_tiny()
	1897
	1898
[2]	1899	# shut Perl up
	1900	1;

Note: See TracBrowser for help on using the repository browser.

Download in other formats: