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source: trunk/DNSDB.pm@ 89

Last change on this file since 89 was 87, checked in by Kris Deugau, 14 years ago

/trunk

Checkpoint. Permissions manipulation should be complete.
Still need to set up permissions *checking*.

Property svn:keywords set to Date Rev Author Id

File size: 43.2 KB

Rev	Line
[2]	1	# dns/trunk/DNSDB.pm
	2	# Abstraction functions for DNS administration
	3	###
	4	# SVN revision info
	5	# $Date: 2011-03-31 22:01:43 +0000 (Thu, 31 Mar 2011) $
	6	# SVN revision $Rev: 87 $
	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
[65]	29	&connectDB &finish
[22]	30	&addDomain &delDomain &domainName
	31	&addGroup &delGroup &getChildren &groupName
[83]	32	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[22]	33	&getSOA &getRecLine &getDomRecs
	34	&addRec &updateRec &delRec
[34]	35	&domStatus &importAXFR
[2]	36	%typemap %reverse_typemap
[66]	37	%permissions @permtypes $permlist
[2]	38	);
	39
	40	@EXPORT = (); # Export nothing by default.
	41	%EXPORT_TAGS = ( ALL => [qw(
[67]	42	&initGlobals
	43	&initPermissions &getPermissions &changePermissions &comparePermissions
[65]	44	&connectDB &finish
[22]	45	&addDomain &delDomain &domainName
	46	&addGroup &delGroup &getChildren &groupName
[83]	47	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[22]	48	&getSOA &getRecLine &getDomRecs
	49	&addRec &updateRec &delRec
[34]	50	&domStatus &importAXFR
[2]	51	%typemap %reverse_typemap
[66]	52	%permissions @permtypes $permlist
[2]	53	)]
	54	);
	55
	56	our $group = 1;
	57	our $errstr = '';
	58
	59	# Halfway sane defaults for SOA, TTL, etc.
	60	our %def = qw (
	61	contact hostmaster.DOMAIN
	62	prins ns1.myserver.com
	63	soattl 86400
	64	refresh 10800
	65	retry 3600
	66	expire 604800
	67	minttl 10800
	68	ttl 10800
	69	);
	70
[66]	71	# Arguably defined wholly in the db, but little reason to change without supporting code changes
	72	our @permtypes = qw (
	73	group_edit group_create group_delete
	74	user_edit user_create user_delete
	75	domain_edit domain_create domain_delete
	76	record_edit record_create record_delete
	77	self_edit admin
	78	);
	79	our $permlist = join(',',@permtypes);
	80
[2]	81	# DNS record type map and reverse map.
	82	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
	83	our %typemap;
	84	our %reverse_typemap;
	85
[65]	86	our %permissions;
[55]	87
[2]	88	##
	89	## Initialization and cleanup subs
	90	##
	91
[55]	92
[2]	93	## DNSDB::connectDB()
	94	# Creates connection to DNS database.
	95	# Requires the database name, username, and password.
	96	# Returns a handle to the db.
	97	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	98	# right changes.
	99	sub connectDB {
	100	$errstr = '';
[15]	101	my $dbname = shift;
	102	my $user = shift;
	103	my $pass = shift;
[2]	104	my $dbh;
	105	my $DSN = "DBI:Pg:dbname=$dbname";
	106
	107	my $host = shift;
	108	$DSN .= ";host=$host" if $host;
	109
	110	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
	111	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	112	$dbh = DBI->connect($DSN, $user, $pass, {
	113	AutoCommit => 1,
	114	PrintError => 0
	115	})
	116	or return (undef, $DBI::errstr) if(!$dbh);
	117
	118	# Return here if we can't select. Note that this indicates a
	119	# problem executing the select.
	120	my $sth = $dbh->prepare("select group_id from groups limit 1");
	121	$sth->execute();
	122	return (undef,$DBI::errstr) if ($sth->err);
	123
	124	# See if the select returned anything (or null data). This should
	125	# succeed if the select executed, but...
	126	$sth->fetchrow();
	127	return (undef,$DBI::errstr) if ($sth->err);
	128
	129	$sth->finish;
	130
	131	# If we get here, we should be OK.
	132	return ($dbh,"DB connection OK");
	133	} # end connectDB
	134
	135
	136	## DNSDB::finish()
	137	# Cleans up after database handles and so on.
	138	# Requires a database handle
	139	sub finish {
	140	my $dbh = $_[0];
	141	$dbh->disconnect;
	142	} # end finish
	143
	144
	145	## DNSDB::initGlobals()
	146	# Initialize global variables
	147	# NB: this does NOT include web-specific session variables!
	148	# Requires a database handle
	149	sub initGlobals {
	150	my $dbh = shift;
	151
	152	# load system-wide site defaults and things from config file
[29]	153	if (open SYSDEFAULTS, "</etc/dnsdb.conf") {
[2]	154	##fixme - error check!
[29]	155	while (<SYSDEFAULTS>) {
	156	next if /^\s*#/;
	157	$def{contact} = $1 if /contact ?= ?([a-z0-9_.-]+)/i;
	158	$def{prins} = $1 if /prins ?= ?([a-z0-9_.-]+)/i;
	159	$def{soattl} = $1 if /soattl ?= ?([a-z0-9_.-]+)/i;
	160	$def{refresh} = $1 if /refresh ?= ?([a-z0-9_.-]+)/i;
	161	$def{retry} = $1 if /retry ?= ?([a-z0-9_.-]+)/i;
	162	$def{expire} = $1 if /expire ?= ?([a-z0-9_.-]+)/i;
	163	$def{minttl} = $1 if /minttl ?= ?([a-z0-9_.-]+)/i;
	164	$def{ttl} = $1 if /ttl ?= ?([a-z0-9_.-]+)/i;
[2]	165	##fixme? load DB user/pass from config file?
[29]	166	}
[2]	167	}
	168	# load from database
	169	my $sth = $dbh->prepare("select val,name from rectypes");
	170	$sth->execute;
	171	while (my ($recval,$recname) = $sth->fetchrow_array()) {
	172	$typemap{$recval} = $recname;
	173	$reverse_typemap{$recname} = $recval;
	174	}
	175	} # end initGlobals
	176
	177
[65]	178	## DNSDB::initPermissions()
	179	# Set up permissions global
	180	# Takes database handle and UID
	181	sub initPermissions {
	182	my $dbh = shift;
	183	my $uid = shift;
	184
	185	# %permissions = $(getPermissions($dbh,'user',$uid));
	186	getPermissions($dbh, 'user', $uid, \%permissions);
	187
	188	} # end initPermissions()
	189
	190
	191	## DNSDB::getPermissions()
	192	# Get permissions from DB
	193	# Requires DB handle, group or user flag, ID, and hashref.
	194	sub getPermissions {
	195	my $dbh = shift;
	196	my $type = shift;
	197	my $id = shift;
	198	my $hash = shift;
	199
	200	my $sql = qq(
	201	SELECT
	202	p.admin,p.self_edit,
	203	p.group_create,p.group_edit,p.group_delete,
	204	p.user_create,p.user_edit,p.user_delete,
	205	p.domain_create,p.domain_edit,p.domain_delete,
	206	p.record_create,p.record_edit,p.record_delete
	207	FROM permissions p
	208	);
	209	if ($type eq 'group') {
	210	$sql .= qq(
	211	JOIN groups g ON g.permission_id=p.permission_id
	212	WHERE g.group_id=?
	213	);
	214	} else {
	215	$sql .= qq(
	216	JOIN users u ON u.permission_id=p.permission_id
	217	WHERE u.user_id=?
	218	);
	219	}
	220
	221	my $sth = $dbh->prepare($sql);
	222
	223	$sth->execute($id) or die "argh: ".$sth->errstr;
	224
	225	# my $permref = $sth->fetchrow_hashref;
	226	# return $permref;
	227	# $hash = $permref;
	228	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
	229	($hash->{admin},$hash->{self_edit},
	230	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
	231	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
	232	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
	233	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
	234	= $sth->fetchrow_array;
	235
	236	} # end getPermissions()
	237
	238
	239	## DNSDB::changePermissions()
	240	# Update an ACL entry
	241	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
[87]	242	##fixme: Must handle case of changing object's permissions from custom to inherited
[65]	243	sub changePermissions {
	244	my $dbh = shift;
	245	my $type = shift;
	246	my $id = shift;
	247	my $newperms = shift;
[87]	248	my $inherit = shift \|\| 0;
[65]	249
[78]	250	my $failmsg = '';
[66]	251
[87]	252	# see if we're switching from inherited to custom. for bonus points,
	253	# snag the permid and parent permid anyway, since we'll need the permid
	254	# to set/alter custom perms, and both if we're switching from custom to
	255	# inherited.
	256	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
[65]	257	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
[66]	258	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
[65]	259	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
	260	$sth->execute($id);
	261
[87]	262	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
[66]	263
[78]	264	# hack phtoui
	265	# group id 1 is "special" in that it's it's own parent (err... possibly.)
	266	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
	267	$wasinherited = 0 if ($type eq 'group' && $id == 1);
	268
[66]	269	local $dbh->{AutoCommit} = 0;
	270	local $dbh->{RaiseError} = 1;
	271
	272	# Wrap all the SQL in a transaction
	273	eval {
[87]	274	if ($inherit) {
	275
	276	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
	277	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
	278	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
	279
	280	} else {
	281
	282	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
[66]	283	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
[87]	284	# ... if'n'when we have groups with fully inherited permissions.
	285	# SQL is coo
	286	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
	287	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
	288	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
	289	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
	290	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
	291	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
[66]	292	}
[78]	293
[87]	294	# and now set the permissions we were passed
	295	foreach (@permtypes) {
	296	if (defined ($newperms->{$_})) {
	297	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
	298	}
	299	}
	300
	301	} # (inherited->)? custom
	302
[66]	303	$dbh->commit;
	304	}; # end eval
	305	if ($@) {
	306	my $msg = $@;
	307	eval { $dbh->rollback; };
[87]	308	return ('FAIL',"$failmsg: $msg ($permid)");
[66]	309	} else {
	310	return ('OK',$permid);
	311	}
	312
[65]	313	} # end changePermissions()
	314
	315
[67]	316	## DNSDB::comparePermissions()
	317	# Compare two permission hashes
	318	# Returns '>', '<', '=', '!'
	319	sub comparePermissions {
	320	my $p1 = shift;
	321	my $p2 = shift;
	322
	323	my $retval = '='; # assume equality until proven otherwise
	324
	325	no warnings "uninitialized";
	326
	327	foreach (@permtypes) {
	328	next if $p1->{$_} == $p2->{$_}; # equal is good
	329	if ($p1->{$_} && !$p2->{$_}) {
	330	if ($retval eq '<') { # if we've already found an unequal pair where
	331	$retval = '!'; # $p2 has more access, and we now find a pair
	332	last; # where $p1 has more access, the overall access
	333	} # is neither greater or lesser, it's unequal.
	334	$retval = '>';
	335	}
	336	if (!$p1->{$_} && $p2->{$_}) {
	337	if ($retval eq '>') { # if we've already found an unequal pair where
	338	$retval = '!'; # $p1 has more access, and we now find a pair
	339	last; # where $p2 has more access, the overall access
	340	} # is neither greater or lesser, it's unequal.
	341	$retval = '<';
	342	}
	343	}
	344	return $retval;
	345	} # end comparePermissions()
	346
	347
[55]	348	## DNSDB::_log()
	349	# Log an action
	350	# Internal sub
	351	# Takes a database handle, <foo>, <bar>
	352	sub _log {
	353	} # end _log
	354
	355
[2]	356	##
	357	## Processing subs
	358	##
	359
	360	## DNSDB::addDomain()
	361	# Add a domain
	362	# Takes a database handle, domain name, numeric group, and boolean(ish) state (active/inactive)
	363	# Returns a status code and message
	364	sub addDomain {
	365	$errstr = '';
	366	my $dbh = shift;
	367	return ('FAIL',"Need database handle") if !$dbh;
	368	my $domain = shift;
	369	return ('FAIL',"Need domain") if !defined($domain);
	370	my $group = shift;
	371	return ('FAIL',"Need group") if !defined($group);
	372	my $state = shift;
	373	return ('FAIL',"Need domain status") if !defined($state);
	374
[38]	375	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[3]	376	my $dom_id;
	377
[38]	378	# quick check to start to see if we've already got one
	379	$sth->execute($domain);
	380	($dom_id) = $sth->fetchrow_array;
	381
	382	return ('FAIL', "Domain already exists") if $dom_id;
	383
[2]	384	# Allow transactions, and raise an exception on errors so we can catch it later.
	385	# Use local to make sure these get "reset" properly on exiting this block
	386	local $dbh->{AutoCommit} = 0;
	387	local $dbh->{RaiseError} = 1;
	388
	389	# Wrap all the SQL in a transaction
	390	eval {
	391	# insert the domain...
	392	my $sth = $dbh->prepare("insert into domains (domain,group_id,status) values (?,?,?)");
	393	$sth->execute($domain,$group,$state);
	394
	395	# get the ID...
	396	$sth = $dbh->prepare("select domain_id from domains where domain='$domain'");
	397	$sth->execute;
[3]	398	($dom_id) = $sth->fetchrow_array();
[2]	399
	400	# ... and now we construct the standard records from the default set. NB: group should be variable.
[3]	401	$sth = $dbh->prepare("select host,type,val,distance,weight,port,ttl from default_records where group_id=$group");
	402	my $sth_in = $dbh->prepare("insert into records (domain_id,host,type,val,distance,weight,port,ttl)".
	403	" values ($dom_id,?,?,?,?,?,?,?)");
[2]	404	$sth->execute;
[3]	405	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
[2]	406	$host =~ s/DOMAIN/$domain/g;
[37]	407	$val =~ s/DOMAIN/$domain/g;
[3]	408	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
[2]	409	}
	410
	411	# once we get here, we should have suceeded.
	412	$dbh->commit;
	413	}; # end eval
	414
	415	if ($@) {
	416	my $msg = $@;
	417	eval { $dbh->rollback; };
	418	return ('FAIL',$msg);
	419	} else {
[3]	420	return ('OK',$dom_id);
[2]	421	}
	422	} # end addDomain
	423
	424
[3]	425	## DNSDB::delDomain()
	426	# Delete a domain.
	427	# for now, just delete the records, then the domain.
	428	# later we may want to archive it in some way instead (status code 2, for example?)
	429	sub delDomain {
	430	my $dbh = shift;
[5]	431	my $domid = shift;
[3]	432
	433	# Allow transactions, and raise an exception on errors so we can catch it later.
	434	# Use local to make sure these get "reset" properly on exiting this block
	435	local $dbh->{AutoCommit} = 0;
	436	local $dbh->{RaiseError} = 1;
	437
[23]	438	my $failmsg = '';
	439
[3]	440	# Wrap all the SQL in a transaction
	441	eval {
[5]	442	my $sth = $dbh->prepare("delete from records where domain_id=?");
[23]	443	$failmsg = "Failure removing domain records";
[5]	444	$sth->execute($domid);
	445	$sth = $dbh->prepare("delete from domains where domain_id=?");
[23]	446	$failmsg = "Failure removing domain";
[5]	447	$sth->execute($domid);
[3]	448
	449	# once we get here, we should have suceeded.
[23]	450	$dbh->commit;
[3]	451	}; # end eval
	452
	453	if ($@) {
	454	my $msg = $@;
	455	eval { $dbh->rollback; };
[23]	456	return ('FAIL',"$failmsg: $msg");
[3]	457	} else {
	458	return ('OK','OK');
	459	}
	460
	461	} # end delDomain()
	462
	463
[2]	464	## DNSDB::domainName()
	465	# Return the domain name based on a domain ID
	466	# Takes a database handle and the domain ID
	467	# Returns the domain name or undef on failure
	468	sub domainName {
	469	$errstr = '';
	470	my $dbh = shift;
	471	my $domid = shift;
	472	my $sth = $dbh->prepare("select domain from domains where domain_id=?");
	473	$sth->execute($domid);
	474	my ($domname) = $sth->fetchrow_array();
	475	$errstr = $DBI::errstr if !$domname;
	476	return $domname if $domname;
	477	} # end domainName
	478
	479
[18]	480	## DNSDB::addGroup()
	481	# Add a group
[66]	482	# Takes a database handle, group name, parent group, hashref for permissions,
	483	# and optional template-vs-cloneme flag
[18]	484	# Returns a status code and message
	485	sub addGroup {
	486	$errstr = '';
	487	my $dbh = shift;
[20]	488	my $groupname = shift;
	489	my $pargroup = shift;
[66]	490	my $permissions = shift;
[18]	491
[66]	492	# 0 indicates "custom", hardcoded.
[18]	493	# Any other value clones that group's default records, if it exists.
[66]	494	my $inherit = shift \|\| 0;
	495	##fixme: need a flag to indicate clone records or <?> ?
[18]	496
	497	# Allow transactions, and raise an exception on errors so we can catch it later.
	498	# Use local to make sure these get "reset" properly on exiting this block
	499	local $dbh->{AutoCommit} = 0;
	500	local $dbh->{RaiseError} = 1;
	501
[38]	502	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
	503	my $group_id;
	504
	505	# quick check to start to see if we've already got one
	506	$sth->execute($groupname);
	507	($group_id) = $sth->fetchrow_array;
	508
	509	return ('FAIL', "Group already exists") if $group_id;
	510
[18]	511	# Wrap all the SQL in a transaction
	512	eval {
[38]	513	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
[20]	514	$sth->execute($pargroup,$groupname);
[18]	515
	516	$sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
[20]	517	$sth->execute($groupname);
	518	my ($groupid) = $sth->fetchrow_array();
[18]	519
[66]	520	# Permissions
	521	if ($inherit) {
	522	} else {
	523	my @permvals;
	524	foreach (@permtypes) {
	525	if (!defined ($permissions->{$_})) {
	526	push @permvals, 0;
	527	} else {
	528	push @permvals, $permissions->{$_};
	529	}
	530	}
	531
	532	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
	533	$sth->execute($groupid,@permvals);
	534
	535	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
	536	$sth->execute($groupid);
	537	my ($permid) = $sth->fetchrow_array();
	538
	539	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
	540	} # done permission fiddling
	541
	542	# Default records
[18]	543	$sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
[20]	544	"VALUES ($groupid,?,?,?,?,?,?,?)");
[66]	545	if ($inherit) {
[87]	546	# Duplicate records from parent. Actually relying on inherited records feels
	547	# very fragile, and it would be problematic to roll over at a later time.
[18]	548	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
[87]	549	$sth2->execute($pargroup);
[18]	550	while (my @clonedata = $sth2->fetchrow_array) {
	551	$sth->execute(@clonedata);
	552	}
	553	} else {
[66]	554	##fixme: Hardcoding is Bad, mmmmkaaaay?
[18]	555	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
	556	# could load from a config file, but somewhere along the line we need hardcoded bits.
	557	$sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
	558	$sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
	559	$sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
	560	$sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
	561	$sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
	562	$sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
	563	}
	564
	565	# once we get here, we should have suceeded.
	566	$dbh->commit;
	567	}; # end eval
	568
	569	if ($@) {
	570	my $msg = $@;
	571	eval { $dbh->rollback; };
	572	return ('FAIL',$msg);
	573	} else {
	574	return ('OK','OK');
	575	}
	576
	577	} # end addGroup()
	578
	579
[22]	580	## DNSDB::delGroup()
	581	# Delete a group.
	582	# Takes a group ID
	583	# Returns a status code and message
	584	sub delGroup {
	585	my $dbh = shift;
	586	my $groupid = shift;
	587
	588	# Allow transactions, and raise an exception on errors so we can catch it later.
	589	# Use local to make sure these get "reset" properly on exiting this block
	590	local $dbh->{AutoCommit} = 0;
	591	local $dbh->{RaiseError} = 1;
	592
	593	##fixme: locate "knowable" error conditions and deal with them before the eval
[23]	594	# ... or inside, whatever.
[22]	595	# -> domains still exist in group
	596	# -> ...
[23]	597	my $failmsg = '';
[22]	598
	599	# Wrap all the SQL in a transaction
	600	eval {
[23]	601	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
[22]	602	$sth->execute($groupid);
[23]	603	my ($domcnt) = $sth->fetchrow_array;
	604	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
	605	die "$domcnt domains still in group\n" if $domcnt;
	606
	607	$sth = $dbh->prepare("delete from default_records where group_id=?");
	608	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
	609	$sth->execute($groupid);
[22]	610	$sth = $dbh->prepare("delete from groups where group_id=?");
[23]	611	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
[22]	612	$sth->execute($groupid);
	613
	614	# once we get here, we should have suceeded.
	615	$dbh->commit;
	616	}; # end eval
	617
	618	if ($@) {
	619	my $msg = $@;
	620	eval { $dbh->rollback; };
[23]	621	return ('FAIL',"$failmsg: $msg");
[22]	622	} else {
	623	return ('OK','OK');
	624	}
	625	} # end delGroup()
	626
	627
[19]	628	## DNSDB::getChildren()
	629	# Get a list of all groups whose parent^n is group <n>
[24]	630	# Takes a database handle, group ID, reference to an array to put the group IDs in,
	631	# and an optional flag to return only immediate children or all children-of-children
	632	# default to returning all children
[19]	633	# Calls itself
	634	sub getChildren {
	635	$errstr = '';
	636	my $dbh = shift;
[20]	637	my $rootgroup = shift;
	638	my $groupdest = shift;
[24]	639	my $immed = shift \|\| 'all';
[19]	640
	641	# special break for default group; otherwise we get stuck.
[20]	642	if ($rootgroup == 1) {
[19]	643	# by definition, group 1 is the Root Of All Groups
[24]	644	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
	645	($immed ne 'all' ? " AND parent_group_id=1" : ''));
[19]	646	$sth->execute;
	647	while (my @this = $sth->fetchrow_array) {
[20]	648	push @$groupdest, @this;
[19]	649	}
	650	} else {
	651	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
[20]	652	$sth->execute($rootgroup);
[19]	653	return if $sth->rows == 0;
[20]	654	my @grouplist;
	655	while (my ($group) = $sth->fetchrow_array) {
	656	push @$groupdest, $group;
[24]	657	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
[19]	658	}
	659	}
	660	} # end getChildren()
	661
	662
[20]	663	## DNSDB::groupName()
[17]	664	# Return the group name based on a group ID
	665	# Takes a database handle and the group ID
	666	# Returns the group name or undef on failure
[20]	667	sub groupName {
[13]	668	$errstr = '';
	669	my $dbh = shift;
[20]	670	my $groupid = shift;
	671	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
	672	$sth->execute($groupid);
	673	my ($groupname) = $sth->fetchrow_array();
	674	$errstr = $DBI::errstr if !$groupname;
	675	return $groupname if $groupname;
	676	} # end groupName
[13]	677
	678
[24]	679	## DNSDB::addUser()
[87]	680	# Add a user.
	681	# Takes a DB handle, username, group ID, password, state (active/inactive).
	682	# Optionally accepts:
	683	# user type (user/admin) - defaults to user
	684	# permissions string - defaults to inherit from group
	685	# three valid forms:
	686	# i - Inherit permissions
	687	# c:<user_id> - Clone permissions from <user_id>
	688	# C:<permission list> - Set these specific permissions
	689	# first name - defaults to username
	690	# last name - defaults to blank
	691	# phone - defaults to blank (could put other data within column def)
	692	# Returns (OK,OK) on success, (FAIL,<message>) on failure
[24]	693	sub addUser {
	694	$errstr = '';
	695	my $dbh = shift;
	696	my $username = shift;
	697	my $group = shift;
	698	my $pass = shift;
	699	my $state = shift;
[25]	700
[87]	701	return ('FAIL',"Missing one or more required entries") if !defined($state);
	702
[25]	703	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
	704
[67]	705	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
	706
[25]	707	my $fname = shift \|\| $username;
[24]	708	my $lname = shift \|\| '';
[25]	709	my $phone = shift \|\| ''; # not going format-check
[24]	710
[38]	711	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
[24]	712	my $user_id;
	713
[38]	714	# quick check to start to see if we've already got one
	715	$sth->execute($username);
	716	($user_id) = $sth->fetchrow_array;
	717
	718	return ('FAIL', "User already exists") if $user_id;
	719
[24]	720	# Allow transactions, and raise an exception on errors so we can catch it later.
	721	# Use local to make sure these get "reset" properly on exiting this block
	722	local $dbh->{AutoCommit} = 0;
	723	local $dbh->{RaiseError} = 1;
	724
[87]	725	my $failmsg;
[24]	726	# Wrap all the SQL in a transaction
	727	eval {
[87]	728	# insert the user... note we set inherited perms by default since
	729	# it's simple and cleans up some other bits of state
	730	my $sth = $dbh->prepare("INSERT INTO users ".
	731	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
	732	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
	733	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
[24]	734
	735	# get the ID...
	736	$sth = $dbh->prepare("select user_id from users where username=?");
	737	$sth->execute($username);
	738	($user_id) = $sth->fetchrow_array();
	739
[87]	740	# Permissions! Gotta set'em all!
	741	die "Invalid permission string $permstring"
	742	if $permstring !~ /^(?:
	743	i # inherit
	744	\|c:\d+ # clone
	745	# custom. no, the leading , is not a typo
	746	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))+
	747	)$/x;
	748	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
	749	if ($permstring ne 'i') {
	750	# for cloned or custom permissions, we have to create a new permissions entry.
	751	my $clonesrc = $group;
	752	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
	753	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
	754	"SELECT $permlist,? FROM permissions WHERE permission_id=".
	755	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
	756	undef, ($user_id,$clonesrc) );
	757	$dbh->do("UPDATE users SET permission_id=".
	758	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
	759	"WHERE user_id=?", undef, ($user_id, $user_id) );
	760	}
	761	if ($permstring =~ /^C:/) {
	762	# finally for custom permissions, we set the passed-in permissions (and unset
	763	# any that might have been brought in by the clone operation above)
	764	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
	765	undef, ($user_id) );
	766	foreach (@permtypes) {
	767	if ($permstring =~ /,$_/) {
	768	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
	769	} else {
	770	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
	771	}
	772	}
	773	}
	774
	775	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
	776
[25]	777	##fixme: add another table to hold name/email for log table?
[87]	778	#die "dying horribly ($permstring, $user_id)";
[25]	779
[24]	780	# once we get here, we should have suceeded.
	781	$dbh->commit;
	782	}; # end eval
	783
	784	if ($@) {
	785	my $msg = $@;
	786	eval { $dbh->rollback; };
[87]	787	return ('FAIL',$msg." $failmsg");
[24]	788	} else {
	789	return ('OK',$user_id);
	790	}
	791	} # end addUser
	792
	793
[55]	794	## DNSDB::checkUser()
	795	# Check user/pass combo on login
	796	sub checkUser {
	797	my $dbh = shift;
	798	my $user = shift;
[56]	799	my $inpass = shift;
[55]	800
	801	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
	802	$sth->execute($user);
	803	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
	804	my $loginfailed = 1 if !defined($uid);
	805
	806	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
[56]	807	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
[55]	808	} else {
[56]	809	$loginfailed = 1 if $pass ne $inpass;
[55]	810	}
	811
	812	# nnnngggg
	813	return ($uid, $gid);
	814	} # end checkUser
	815
	816
[83]	817	## DNSDB:: updateUser()
	818	#
	819	sub updateUser {
	820	my $dbh = shift;
	821	my $uid = shift;
	822	my $username = shift;
	823	my $group = shift;
	824	my $pass = shift;
	825	my $state = shift;
[87]	826	my $type = shift \|\| 'u';
[83]	827	my $fname = shift \|\| $username;
	828	my $lname = shift \|\| '';
	829	my $phone = shift \|\| ''; # not going format-check
	830
	831	my $failmsg = '';
	832
	833	# Allow transactions, and raise an exception on errors so we can catch it later.
	834	# Use local to make sure these get "reset" properly on exiting this block
	835	local $dbh->{AutoCommit} = 0;
	836	local $dbh->{RaiseError} = 1;
	837
	838	my $sth;
	839
	840	# Password can be left blank; if so we assume there's one on file.
	841	# Actual blank passwords are bad, mm'kay?
	842	if (!$pass) {
	843	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
	844	$sth->execute($uid);
	845	($pass) = $sth->fetchrow_array;
	846	} else {
	847	$pass = unix_md5_crypt($pass);
	848	}
	849
	850	eval {
	851	my $sth = $dbh->prepare(q(
	852	UPDATE users
	853	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
	854	WHERE user_id=?
	855	)
	856	);
	857	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
	858	$dbh->commit;
	859	};
	860	if ($@) {
	861	my $msg = $@;
	862	eval { $dbh->rollback; };
	863	return ('FAIL',"$failmsg: $msg");
	864	} else {
	865	return ('OK','OK');
	866	}
	867	} # end updateUser()
	868
	869
[24]	870	## DNSDB::delUser()
	871	#
	872	sub delUser {
[25]	873	my $dbh = shift;
	874	return ('FAIL',"Need database handle") if !$dbh;
	875	my $userid = shift;
	876	return ('FAIL',"Missing userid") if !defined($userid);
	877
	878	my $sth = $dbh->prepare("delete from users where user_id=?");
	879	$sth->execute($userid);
	880
	881	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
	882
	883	return ('OK','OK');
	884
[24]	885	} # end delUser
	886
	887
[25]	888	## DNSDB::userFullName()
	889	# Return a pretty string!
	890	# Takes a user_id and optional printf-ish string to indicate which pieces where:
	891	# %u for the username
	892	# %f for the first name
	893	# %l for the last name
	894	# All other text in the passed string will be left as-is.
	895	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
	896	sub userFullName {
	897	$errstr = '';
	898	my $dbh = shift;
	899	my $userid = shift;
	900	my $fullformat = shift \|\| '%f %l (%u)';
	901	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
	902	$sth->execute($userid);
	903	my ($uname,$fname,$lname) = $sth->fetchrow_array();
	904	$errstr = $DBI::errstr if !$uname;
	905
	906	$fullformat =~ s/\%u/$uname/g;
	907	$fullformat =~ s/\%f/$fname/g;
	908	$fullformat =~ s/\%l/$lname/g;
	909
	910	return $fullformat;
	911	} # end userFullName
	912
	913
[51]	914	## DNSDB::userStatus()
	915	# Sets and/or returns a user's status
	916	# Takes a database handle, user ID and optionally a status argument
	917	# Returns undef on errors.
	918	sub userStatus {
	919	my $dbh = shift;
	920	my $id = shift;
	921	my $newstatus = shift;
	922
	923	return undef if $id !~ /^\d+$/;
	924
	925	my $sth;
	926
	927	# ooo, fun! let's see what we were passed for status
	928	if ($newstatus) {
	929	$sth = $dbh->prepare("update users set status=? where user_id=?");
	930	# ass-u-me caller knows what's going on in full
	931	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	932	$sth->execute($newstatus,$id);
	933	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
	934	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
	935	}
	936	}
	937
	938	$sth = $dbh->prepare("select status from users where user_id=?");
	939	$sth->execute($id);
	940	my ($status) = $sth->fetchrow_array;
	941	return $status;
	942	} # end userStatus()
	943
	944
[83]	945	## DNSDB::getUserData()
	946	# Get misc user data for display
	947	sub getUserData {
	948	my $dbh = shift;
	949	my $uid = shift;
	950
	951	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
	952	"FROM users WHERE user_id=?");
	953	$sth->execute($uid);
	954	return $sth->fetchrow_hashref();
	955
	956	} # end getUserData()
	957
	958
[2]	959	## DNSDB::editRecord()
	960	# Change an existing record
	961	# Takes a database handle, default/live flag, record ID, and new data and updates the data fields for it
	962	sub editRecord {
	963	$errstr = '';
	964	my $dbh = shift;
	965	my $defflag = shift;
	966	my $recid = shift;
	967	my $host = shift;
	968	my $address = shift;
	969	my $distance = shift;
	970	my $weight = shift;
	971	my $port = shift;
	972	my $ttl = shift;
	973	}
	974
	975
	976	## DNSDB::getSOA()
	977	# Return all suitable fields from an SOA record in separate elements of a hash
	978	# Takes a database handle, default/live flag, and group (default) or domain (live) ID
	979	sub getSOA {
	980	$errstr = '';
	981	my $dbh = shift;
	982	my $def = shift;
	983	my $id = shift;
	984	my %ret;
	985
	986	my $sql = "select record_id,host,val,ttl from";
	987	if ($def eq 'def' or $def eq 'y') {
	988	$sql .= " default_records where group_id=$id and type=$reverse_typemap{SOA}";
	989	} else {
	990	# we're editing a live SOA record; find based on domain
	991	$sql .= " records where domain_id=$id and type=$reverse_typemap{SOA}";
	992	}
	993	my $sth = $dbh->prepare($sql);
	994	$sth->execute;
	995
	996	my ($recid,$host,$val,$ttl) = $sth->fetchrow_array();
	997	my ($prins,$contact) = split /:/, $host;
	998	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
	999
	1000	$ret{recid} = $recid;
	1001	$ret{ttl} = $ttl;
	1002	$ret{prins} = $prins;
	1003	$ret{contact} = $contact;
	1004	$ret{refresh} = $refresh;
	1005	$ret{retry} = $retry;
	1006	$ret{expire} = $expire;
	1007	$ret{minttl} = $minttl;
	1008
	1009	return %ret;
	1010	} # end getSOA()
	1011
	1012
	1013	## DNSDB::getRecLine()
	1014	# Return all data fields for a zone record in separate elements of a hash
	1015	# Takes a database handle, default/live flag, and record ID
	1016	sub getRecLine {
	1017	$errstr = '';
	1018	my $dbh = shift;
	1019	my $def = shift;
	1020	my $id = shift;
	1021
[62]	1022	my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl".
	1023	(($def eq 'def' or $def eq 'y') ? ',group_id FROM default_' : ',domain_id FROM ').
	1024	"records WHERE record_id=?";
[2]	1025	my $sth = $dbh->prepare($sql);
[62]	1026	$sth->execute($id);
[2]	1027
[62]	1028	my ($recid,$host,$rtype,$val,$distance,$weight,$port,$ttl,$parid) = $sth->fetchrow_array();
[2]	1029
	1030	if ($sth->err) {
	1031	$errstr = $DBI::errstr;
	1032	return undef;
	1033	}
[3]	1034	my %ret;
[2]	1035	$ret{recid} = $recid;
	1036	$ret{host} = $host;
	1037	$ret{type} = $rtype;
	1038	$ret{val} = $val;
	1039	$ret{distance}= $distance;
	1040	$ret{weight} = $weight;
	1041	$ret{port} = $port;
	1042	$ret{ttl} = $ttl;
[62]	1043	$ret{parid} = $parid;
[2]	1044
	1045	return %ret;
	1046	}
	1047
	1048
	1049	##fixme: should use above (getRecLine()) to get lines for below?
	1050	## DNSDB::getDomRecs()
	1051	# Return records for a domain
	1052	# Takes a database handle, default/live flag, group/domain ID, start,
	1053	# number of records, sort field, and sort order
	1054	# Returns a reference to an array of hashes
	1055	sub getDomRecs {
	1056	$errstr = '';
	1057	my $dbh = shift;
	1058	my $type = shift;
	1059	my $id = shift;
[4]	1060	my $nrecs = shift \|\| 'all';
	1061	my $nstart = shift \|\| 0;
[2]	1062
[4]	1063	## for order, need to map input to column names
	1064	my $order = shift \|\| 'host';
[72]	1065	my $direction = shift \|\| 'ASC';
[4]	1066
[62]	1067	my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl FROM ";
[2]	1068	if ($type eq 'def' or $type eq 'y') {
	1069	$sql .= " default_records where group_id=$id";
	1070	} else {
	1071	$sql .= " records where domain_id=$id";
	1072	}
[72]	1073	$sql .= " and not type=$reverse_typemap{SOA} order by $order $direction";
[15]	1074	##fixme: need to set nstart properly (offset is not internally multiplied with limit)
[17]	1075	$sql .= " limit $nrecs offset ".($nstart*$nrecs) if $nstart ne 'all';
[4]	1076
[2]	1077	my $sth = $dbh->prepare($sql);
	1078	$sth->execute;
	1079
	1080	my @retbase;
	1081	while (my $ref = $sth->fetchrow_hashref()) {
	1082	push @retbase, $ref;
	1083	}
	1084
	1085	my $ret = \@retbase;
	1086	return $ret;
	1087	} # end getDomRecs()
	1088
	1089
[3]	1090	## DNSDB::addRec()
[2]	1091	# Add a new record to a domain or a group's default records
	1092	# Takes a database handle, default/live flag, group/domain ID,
	1093	# host, type, value, and TTL
	1094	# Some types require additional detail: "distance" for MX and SRV,
	1095	# and weight/port for SRV
	1096	# Returns a status code and detail message in case of error
	1097	sub addRec {
	1098	$errstr = '';
	1099	my $dbh = shift;
	1100	my $defrec = shift;
	1101	my $id = shift;
	1102
	1103	my $host = shift;
	1104	my $rectype = shift;
	1105	my $val = shift;
	1106	my $ttl = shift;
	1107
	1108	my $fields = ($defrec eq 'y' ? 'group_id' : 'domain_id').",host,type,val,ttl";
[24]	1109	my $vallen = "?,?,?,?,?";
	1110	my @vallist = ($id,$host,$rectype,$val,$ttl);
[2]	1111
	1112	my $dist;
	1113	if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
	1114	$dist = shift;
	1115	return ('FAIL',"Need distance for $typemap{$rectype} record") if !defined($dist);
	1116	$fields .= ",distance";
[24]	1117	$vallen .= ",?";
	1118	push @vallist, $dist;
[2]	1119	}
	1120	my $weight;
	1121	my $port;
	1122	if ($rectype == $reverse_typemap{SRV}) {
[24]	1123	# check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
	1124	# it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
	1125	return ('FAIL',"SRV records must begin with _service._protocol")
	1126	if $host !~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-z0-9-]+/;
[2]	1127	$weight = shift;
	1128	$port = shift;
	1129	return ('FAIL',"Need weight and port for SRV record") if !defined($weight) or !defined($port);
	1130	$fields .= ",weight,port";
[24]	1131	$vallen .= ",?,?";
	1132	push @vallist, ($weight,$port);
[2]	1133	}
	1134
[24]	1135	my $sql = "insert into ".($defrec eq 'y' ? 'default_' : '')."records ($fields) values ($vallen)";
	1136	##fixme: use array for values, replace "vallist" with series of ?,?,? etc
[2]	1137	# something is bugging me about this...
[15]	1138	#warn "DEBUG: $sql";
[2]	1139	my $sth = $dbh->prepare($sql);
[24]	1140	$sth->execute(@vallist);
[2]	1141
	1142	return ('FAIL',$sth->errstr) if $sth->err;
	1143
	1144	return ('OK','OK');
	1145	} # end addRec()
	1146
	1147
[16]	1148	## DNSDB::updateRec()
	1149	# Update a record
	1150	sub updateRec {
	1151	$errstr = '';
[17]	1152
[16]	1153	my $dbh = shift;
	1154	my $defrec = shift;
	1155	my $id = shift;
	1156
	1157	# all records have these
	1158	my $host = shift;
	1159	my $type = shift;
	1160	my $val = shift;
	1161	my $ttl = shift;
	1162
	1163	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
	1164
	1165	# only MX and SRV will use these
	1166	my $dist = 0;
	1167	my $weight = 0;
	1168	my $port = 0;
	1169
	1170	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
[17]	1171	$dist = shift;
	1172	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
[16]	1173	if ($type == $reverse_typemap{SRV}) {
[17]	1174	$weight = shift;
	1175	return ('FAIL',"SRV requires weight") if !defined($weight);
	1176	$port = shift;
	1177	return ('FAIL',"SRV requires port") if !defined($port);
[16]	1178	}
	1179	}
	1180
	1181	my $sth = $dbh->prepare("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
	1182	"SET host=?,type=?,val=?,ttl=?,distance=?,weight=?,port=? ".
	1183	"WHERE record_id=?");
	1184	$sth->execute($host,$type,$val,$ttl,$dist,$weight,$port,$id);
	1185
[17]	1186	return ('FAIL',$sth->errstr."<br>\n$errstr<br>\n") if $sth->err;
[16]	1187
	1188	return ('OK','OK');
	1189	} # end updateRec()
	1190
	1191
[3]	1192	## DNSDB::delRec()
	1193	# Delete a record.
	1194	sub delRec {
	1195	$errstr = '';
	1196	my $dbh = shift;
	1197	my $defrec = shift;
	1198	my $id = shift;
	1199
[62]	1200	my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
[3]	1201	$sth->execute($id);
	1202
[23]	1203	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
[3]	1204
	1205	return ('OK','OK');
	1206	} # end delRec()
	1207
	1208
	1209	## DNSDB::domStatus()
	1210	# Sets and/or returns a domain's status
	1211	# Takes a database handle, domain ID and optionally a status argument
	1212	# Returns undef on errors.
	1213	sub domStatus {
	1214	my $dbh = shift;
	1215	my $id = shift;
	1216	my $newstatus = shift;
	1217
	1218	return undef if $id !~ /^\d+$/;
	1219
	1220	my $sth;
	1221
	1222	# ooo, fun! let's see what we were passed for status
	1223	if ($newstatus) {
	1224	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
	1225	# ass-u-me caller knows what's going on in full
	1226	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	1227	$sth->execute($newstatus,$id);
	1228	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
	1229	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
	1230	}
	1231	}
	1232
	1233	$sth = $dbh->prepare("select status from domains where domain_id=?");
	1234	$sth->execute($id);
	1235	my ($status) = $sth->fetchrow_array;
	1236	return $status;
	1237	} # end domStatus()
	1238
	1239
[33]	1240	## DNSDB::importAXFR
	1241	# Import a domain via AXFR
[37]	1242	# Takes AXFR host, domain to transfer, group to put the domain in,
	1243	# and optionally:
	1244	# - active/inactive state flag (defaults to active)
	1245	# - overwrite-SOA flag (defaults to off)
	1246	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
	1247	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
	1248	# if status is OK, but WARN includes conditions that are not fatal but should
	1249	# really be reported.
[33]	1250	sub importAXFR {
	1251	my $dbh = shift;
[35]	1252	my $ifrom_in = shift;
[33]	1253	my $domain = shift;
	1254	my $group = shift;
	1255	my $status = shift \|\| 1;
	1256	my $rwsoa = shift \|\| 0;
	1257	my $rwns = shift \|\| 0;
[37]	1258
[33]	1259	##fixme: add mode to delete&replace, merge+overwrite, merge new?
	1260
[37]	1261	my $nrecs = 0;
	1262	my $soaflag = 0;
	1263	my $nsflag = 0;
	1264	my $warnmsg = '';
	1265	my $ifrom;
[33]	1266
[35]	1267	# choke on possible bad setting in ifrom
[37]	1268	# IPv4 and v6, and valid hostnames!
[35]	1269	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1270	return ('FAIL', "Bad AXFR source host $ifrom")
	1271	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1272
[33]	1273	# Allow transactions, and raise an exception on errors so we can catch it later.
	1274	# Use local to make sure these get "reset" properly on exiting this block
	1275	local $dbh->{AutoCommit} = 0;
	1276	local $dbh->{RaiseError} = 1;
	1277
[37]	1278	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[34]	1279	my $dom_id;
	1280
[35]	1281	# quick check to start to see if we've already got one
[37]	1282	$sth->execute($domain);
	1283	($dom_id) = $sth->fetchrow_array;
[35]	1284
	1285	return ('FAIL', "Domain already exists") if $dom_id;
	1286
[33]	1287	eval {
	1288	# can't do this, can't nest transactions. sigh.
[35]	1289	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
[33]	1290
	1291	##fixme: serial
[37]	1292	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
	1293	$sth->execute($domain,$group,$status);
[33]	1294
[35]	1295	## bizarre DBI<->Net::DNS interaction bug:
	1296	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
[37]	1297	## fixed, apparently I was doing something odd, but not certain what it was that
	1298	## caused a commit instead of barfing
[35]	1299
[33]	1300	# get domain id so we can do the records
[37]	1301	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
	1302	$sth->execute($domain);
	1303	($dom_id) = $sth->fetchrow_array();
[33]	1304
[34]	1305	my $res = Net::DNS::Resolver->new;
[35]	1306	$res->nameservers($ifrom);
	1307	$res->axfr_start($domain)
	1308	or die "Couldn't begin AXFR\n";
[34]	1309
[35]	1310	while (my $rr = $res->axfr_next()) {
[33]	1311	my $type = $rr->type;
[35]	1312
[34]	1313	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
[33]	1314	my $vallen = "?,?,?,?,?";
	1315
[37]	1316	$soaflag = 1 if $type eq 'SOA';
	1317	$nsflag = 1 if $type eq 'NS';
[35]	1318
	1319	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
[34]	1320
	1321	# "Primary" types:
	1322	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
	1323	# maybe KEY
	1324
[35]	1325	# nasty big ugly case-like thing here, since we have to do some different
	1326	# processing depending on the record. le sigh.
	1327
[34]	1328	if ($type eq 'A') {
	1329	push @vallist, $rr->address;
	1330	} elsif ($type eq 'NS') {
[37]	1331	# hmm. should we warn here if subdomain NS'es are left alone?
	1332	next if ($rwns && ($rr->name eq $domain));
[34]	1333	push @vallist, $rr->nsdname;
[35]	1334	$nsflag = 1;
[34]	1335	} elsif ($type eq 'CNAME') {
	1336	push @vallist, $rr->cname;
	1337	} elsif ($type eq 'SOA') {
[37]	1338	next if $rwsoa;
[34]	1339	$vallist[1] = $rr->mname.":".$rr->rname;
	1340	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
[35]	1341	$soaflag = 1;
[34]	1342	} elsif ($type eq 'PTR') {
	1343	# hmm. PTR records should not be in forward zones.
	1344	} elsif ($type eq 'MX') {
[33]	1345	$sql .= ",distance";
	1346	$vallen .= ",?";
[34]	1347	push @vallist, $rr->exchange;
	1348	push @vallist, $rr->preference;
	1349	} elsif ($type eq 'TXT') {
	1350	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
	1351	## but don't really seem enthusiastic about it.
	1352	push @vallist, $rr->txtdata;
	1353	} elsif ($type eq 'SPF') {
	1354	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
	1355	push @vallist, $rr->txtdata;
	1356	} elsif ($type eq 'AAAA') {
	1357	push @vallist, $rr->address;
	1358	} elsif ($type eq 'SRV') {
	1359	$sql .= ",distance,weight,port" if $type eq 'SRV';
	1360	$vallen .= ",?,?,?" if $type eq 'SRV';
[37]	1361	push @vallist, $rr->target;
[34]	1362	push @vallist, $rr->priority;
	1363	push @vallist, $rr->weight;
	1364	push @vallist, $rr->port;
	1365	} elsif ($type eq 'KEY') {
[35]	1366	# we don't actually know what to do with these...
[34]	1367	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
[35]	1368	} else {
[37]	1369	push @vallist, $rr->rdatastr;
[35]	1370	# Finding a different record type is not fatal.... just problematic.
[37]	1371	# We may not be able to export it correctly.
[35]	1372	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
[33]	1373	}
	1374
[34]	1375	# BIND supports:
	1376	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
	1377	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
	1378	# ... if one can ever find the right magic to format them correctly
	1379
	1380	# Net::DNS supports:
	1381	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
	1382	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
	1383	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
	1384
[37]	1385	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
	1386	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
[34]	1387
[37]	1388	$nrecs++;
[34]	1389
[37]	1390	} # while axfr_next
	1391
	1392	# Overwrite SOA record
	1393	if ($rwsoa) {
	1394	$soaflag = 1;
	1395	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1396	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1397	$sthgetsoa->execute($group,$reverse_typemap{SOA});
	1398	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
	1399	$host =~ s/DOMAIN/$domain/g;
	1400	$val =~ s/DOMAIN/$domain/g;
	1401	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
[34]	1402	}
[37]	1403	}
[34]	1404
[37]	1405	# Overwrite NS records
	1406	if ($rwns) {
	1407	$nsflag = 1;
	1408	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1409	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1410	$sthgetns->execute($group,$reverse_typemap{NS});
	1411	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
	1412	$host =~ s/DOMAIN/$domain/g;
	1413	$val =~ s/DOMAIN/$domain/g;
	1414	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
	1415	}
	1416	}
[34]	1417
[35]	1418	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
	1419	die "Bad zone: No SOA record!\n" if !$soaflag;
	1420	die "Bad zone: No NS records!\n" if !$nsflag;
	1421
[37]	1422	$dbh->commit;
[35]	1423
[33]	1424	};
	1425
	1426	if ($@) {
	1427	my $msg = $@;
	1428	eval { $dbh->rollback; };
[34]	1429	return ('FAIL',$msg." $warnmsg");
[33]	1430	} else {
[35]	1431	return ('WARN', $warnmsg) if $warnmsg;
[33]	1432	return ('OK',"ook");
	1433	}
	1434
[37]	1435	# it should be impossible to get here.
[34]	1436	return ('WARN',"OOOK!");
[33]	1437	} # end importAXFR()
	1438
	1439
[2]	1440	# shut Perl up
	1441	1;

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