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source: branches/stable/DNSDB.pm@ 313

Last change on this file since 313 was 263, checked in by Kris Deugau, 13 years ago

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[2]	1	# dns/trunk/DNSDB.pm
	2	# Abstraction functions for DNS administration
[263]	3	##
	4	# $Id: DNSDB.pm 263 2012-03-04 22:57:34Z kdeugau $
	5	# Copyright 2008-2011 Kris Deugau <kdeugau@deepnet.cx>
	6	#
	7	# This program is free software: you can redistribute it and/or modify
	8	# it under the terms of the GNU General Public License as published by
	9	# the Free Software Foundation, either version 3 of the License, or
	10	# (at your option) any later version.
	11	#
	12	# This program is distributed in the hope that it will be useful,
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	# GNU General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public License
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	##
[2]	20
	21	package DNSDB;
	22
	23	use strict;
	24	use warnings;
	25	use Exporter;
	26	use DBI;
[33]	27	use Net::DNS;
[65]	28	use Crypt::PasswdMD5;
[198]	29	use Net::SMTP;
[132]	30	use NetAddr::IP;
[198]	31	use POSIX;
[2]	32	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
	33
[200]	34	$VERSION = 0.1; ##VERSION##
[2]	35	@ISA = qw(Exporter);
	36	@EXPORT_OK = qw(
[67]	37	&initGlobals
	38	&initPermissions &getPermissions &changePermissions &comparePermissions
[112]	39	&changeGroup
[128]	40	&loadConfig &connectDB &finish
[91]	41	&addDomain &delDomain &domainName &domainID
[22]	42	&addGroup &delGroup &getChildren &groupName
[83]	43	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[91]	44	&getSOA &getRecLine &getDomRecs &getRecCount
[22]	45	&addRec &updateRec &delRec
[117]	46	&getParents
	47	&isParent
[34]	48	&domStatus &importAXFR
[103]	49	&export
[197]	50	&mailNotify
[128]	51	%typemap %reverse_typemap %config
[66]	52	%permissions @permtypes $permlist
[2]	53	);
	54
	55	@EXPORT = (); # Export nothing by default.
	56	%EXPORT_TAGS = ( ALL => [qw(
[67]	57	&initGlobals
	58	&initPermissions &getPermissions &changePermissions &comparePermissions
[112]	59	&changeGroup
[128]	60	&loadConfig &connectDB &finish
[91]	61	&addDomain &delDomain &domainName &domainID
[22]	62	&addGroup &delGroup &getChildren &groupName
[83]	63	&addUser &updateUser &delUser &userFullName &userStatus &getUserData
[91]	64	&getSOA &getRecLine &getDomRecs &getRecCount
[22]	65	&addRec &updateRec &delRec
[117]	66	&getParents
	67	&isParent
[34]	68	&domStatus &importAXFR
[103]	69	&export
[197]	70	&mailNotify
[128]	71	%typemap %reverse_typemap %config
[66]	72	%permissions @permtypes $permlist
[2]	73	)]
	74	);
	75
	76	our $group = 1;
	77	our $errstr = '';
	78
	79	# Halfway sane defaults for SOA, TTL, etc.
[101]	80	# serial defaults to 0 for convenience.
	81	# value will be either YYYYMMDDNN for BIND/etc, or auto-internal for tinydns
[2]	82	our %def = qw (
	83	contact hostmaster.DOMAIN
	84	prins ns1.myserver.com
[101]	85	serial 0
[2]	86	soattl 86400
	87	refresh 10800
	88	retry 3600
	89	expire 604800
	90	minttl 10800
	91	ttl 10800
	92	);
	93
[66]	94	# Arguably defined wholly in the db, but little reason to change without supporting code changes
	95	our @permtypes = qw (
	96	group_edit group_create group_delete
	97	user_edit user_create user_delete
	98	domain_edit domain_create domain_delete
	99	record_edit record_create record_delete
	100	self_edit admin
	101	);
	102	our $permlist = join(',',@permtypes);
	103
[2]	104	# DNS record type map and reverse map.
	105	# loaded from the database, from http://www.iana.org/assignments/dns-parameters
	106	our %typemap;
	107	our %reverse_typemap;
	108
[65]	109	our %permissions;
[55]	110
[128]	111	# Prepopulate a basic config. Note some of these will cause errors if left unset.
[195]	112	# note: add appropriate stanzas in loadConfig to parse these
[128]	113	our %config = (
	114	# Database connection info
	115	dbname => 'dnsdb',
	116	dbuser => 'dnsdb',
	117	dbpass => 'secret',
	118	dbhost => '',
	119
	120	# Email notice settings
	121	mailhost => 'smtp.example.com',
[195]	122	mailnotify => 'dnsdb@example.com', # to
	123	mailsender => 'dnsdb@example.com', # from
[128]	124	mailname => 'DNS Administration',
[195]	125	orgname => 'Example Corp',
	126	domain => 'example.com',
[128]	127
	128	# Template directory
	129	templatedir => 'templates/',
	130	# fmeh. this is a real web path, not a logical internal one. hm..
[163]	131	# cssdir => 'templates/',
[216]	132	sessiondir => 'session/',
[163]	133
	134	# Session params
[195]	135	timeout => '3600', # 1 hour default
	136
	137	# Other miscellanea
	138	log_failures => 1, # log all evarthing by default
[201]	139	perpage => 15,
[128]	140	);
	141
	142
[2]	143	##
	144	## Initialization and cleanup subs
	145	##
	146
[55]	147
[128]	148	## DNSDB::loadConfig()
	149	# Load the minimum required initial state (DB connect info) from a config file
	150	# Load misc other bits while we're at it.
	151	# Takes an optional basename and config path to look for
	152	# Populates the %config and %def hashes
	153	sub loadConfig {
	154	my $basename = shift \|\| ''; # this will work OK
[218]	155	##fixme $basename isn't doing what I think I thought I was trying to do.
[128]	156
	157	my $deferr = ''; # place to put error from default config file in case we can't find either one
	158
[219]	159	my $configroot = "/etc/dnsdb"; ##CFG_LEAF##
[128]	160	$configroot = '' if $basename =~ m\|^/\|;
	161	$basename .= ".conf" if $basename !~ /\.conf$/;
	162	my $defconfig = "$configroot/dnsdb.conf";
	163	my $siteconfig = "$configroot/$basename";
	164
	165	# System defaults
[131]	166	__cfgload("$defconfig") or $deferr = $errstr;
[128]	167
[131]	168	# Per-site-ish settings.
	169	if ($basename ne '.conf') {
	170	unless (__cfgload("$siteconfig")) {
	171	$errstr = ($deferr ? "Error opening default config file $defconfig: $deferr\n" : '').
[128]	172	"Error opening site config file $siteconfig";
[131]	173	return;
	174	}
[128]	175	}
	176
[195]	177	# Munge log_failures.
	178	if ($config{log_failures} ne '1' && $config{log_failures} ne '0') {
	179	# true/false, on/off, yes/no all valid.
	180	if ($config{log_failures} =~ /^(?:true\|false\|on\|off\|yes\|no)$/) {
	181	if ($config{log_failures} =~ /(?:true\|on\|yes)/) {
	182	$config{log_failures} = 1;
	183	} else {
	184	$config{log_failures} = 0;
	185	}
	186	} else {
	187	$errstr = "Bad log_failures setting $config{log_failures}";
	188	$config{log_failures} = 1;
	189	# Bad setting shouldn't be fatal.
	190	# return 2;
	191	}
	192	}
	193
[128]	194	# All good, clear the error and go home.
	195	$errstr = '';
	196	return 1;
	197	} # end loadConfig()
	198
	199
	200	## DNSDB::__cfgload()
	201	# Private sub to parse a config file and load it into %config
	202	# Takes a file handle on an open config file
	203	sub __cfgload {
	204	$errstr = '';
	205	my $cfgfile = shift;
[131]	206
[128]	207	if (open CFG, "<$cfgfile") {
	208	while (<CFG>) {
	209	chomp;
	210	s/^\s*//;
	211	next if /^#/;
	212	next if /^$/;
	213	# hmm. more complex bits in this file might require [heading] headers, maybe?
	214	# $mode = $1 if /^\[(a-z)+]/;
	215	# DB connect info
	216	$config{dbname} = $1 if /^dbname\s=\s([a-z0-9_.-]+)/i;
	217	$config{dbuser} = $1 if /^dbuser\s=\s([a-z0-9_.-]+)/i;
	218	$config{dbpass} = $1 if /^dbpass\s=\s([a-z0-9_.-]+)/i;
	219	$config{dbhost} = $1 if /^dbhost\s=\s([a-z0-9_.-]+)/i;
	220	# SOA defaults
	221	$def{contact} = $1 if /^contact\s=\s([a-z0-9_.-]+)/i;
	222	$def{prins} = $1 if /^prins\s=\s([a-z0-9_.-]+)/i;
[201]	223	$def{soattl} = $1 if /^soattl\s=\s(\d+)/i;
	224	$def{refresh} = $1 if /^refresh\s=\s(\d+)/i;
	225	$def{retry} = $1 if /^retry\s=\s(\d+)/i;
	226	$def{expire} = $1 if /^expire\s=\s(\d+)/i;
	227	$def{minttl} = $1 if /^minttl\s=\s(\d+)/i;
	228	$def{ttl} = $1 if /^ttl\s=\s(\d+)/i;
[128]	229	# Mail settings
	230	$config{mailhost} = $1 if /^mailhost\s=\s([a-z0-9_.-]+)/i;
[198]	231	$config{mailnotify} = $1 if /^mailnotify\s=\s([a-z0-9_.\@-]+)/i;
	232	$config{mailsender} = $1 if /^mailsender\s=\s([a-z0-9_.\@-]+)/i;
[128]	233	$config{mailname} = $1 if /^mailname\s=\s([a-z0-9\s_.-]+)/i;
[195]	234	$config{orgname} = $1 if /^orgname\s=\s([a-z0-9\s_.,'-]+)/i;
	235	$config{domain} = $1 if /^domain\s=\s([a-z0-9_.-]+)/i;
[163]	236	# session - note this is fed directly to CGI::Session
[216]	237	$config{timeout} = $1 if /^[tT][iI][mM][eE][oO][uU][tT]\s=\s(\d+[smhdwMy]?)/;
	238	$config{sessiondir} = $1 if m{^sessiondir\s=\s([a-z0-9/_.-]+)}i;
[201]	239	# misc
[195]	240	$config{log_failures} = $1 if /^log_failures\s=\s([a-z01]+)/i;
[201]	241	$config{perpage} = $1 if /^perpage\s=\s(\d+)/i;
[128]	242	}
	243	close CFG;
	244	} else {
	245	$errstr = $!;
	246	return;
	247	}
	248	return 1;
	249	} # end __cfgload()
	250
	251
[2]	252	## DNSDB::connectDB()
	253	# Creates connection to DNS database.
	254	# Requires the database name, username, and password.
	255	# Returns a handle to the db.
	256	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	257	# right changes.
	258	sub connectDB {
	259	$errstr = '';
[15]	260	my $dbname = shift;
	261	my $user = shift;
	262	my $pass = shift;
[2]	263	my $dbh;
	264	my $DSN = "DBI:Pg:dbname=$dbname";
	265
	266	my $host = shift;
	267	$DSN .= ";host=$host" if $host;
	268
	269	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
	270	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	271	$dbh = DBI->connect($DSN, $user, $pass, {
	272	AutoCommit => 1,
	273	PrintError => 0
	274	})
	275	or return (undef, $DBI::errstr) if(!$dbh);
	276
[212]	277	##fixme: initialize the DB if we can't find the table (since, by definition, there's
	278	# nothing there if we can't select from it...)
	279	my $tblsth = $dbh->prepare("SELECT count(*) FROM pg_catalog.pg_class WHERE relkind='r' AND relname=?");
	280	my ($tblcount) = $dbh->selectrow_array($tblsth, undef, ('misc'));
	281	return (undef,$DBI::errstr) if $dbh->err;
	282
	283	#if ($tblcount == 0) {
	284	# # create tables one at a time, checking for each.
	285	# return (undef, "check table misc missing");
	286	#}
	287
	288
	289	# Return here if we can't select.
	290	# This should retrieve the dbversion key.
	291	my $sth = $dbh->prepare("SELECT key,value FROM misc WHERE misc_id=1");
[2]	292	$sth->execute();
	293	return (undef,$DBI::errstr) if ($sth->err);
	294
[212]	295	##fixme: do stuff to the DB on version mismatch
	296	# x.y series should upgrade on $DNSDB::VERSION > misc(key=>version)
	297	# DB should be downward-compatible; column defaults should give sane (if possibly
	298	# useless-and-needs-help) values in columns an older software stack doesn't know about.
	299
[2]	300	# See if the select returned anything (or null data). This should
	301	# succeed if the select executed, but...
	302	$sth->fetchrow();
	303	return (undef,$DBI::errstr) if ($sth->err);
	304
	305	$sth->finish;
	306
	307	# If we get here, we should be OK.
	308	return ($dbh,"DB connection OK");
	309	} # end connectDB
	310
	311
	312	## DNSDB::finish()
	313	# Cleans up after database handles and so on.
	314	# Requires a database handle
	315	sub finish {
	316	my $dbh = $_[0];
	317	$dbh->disconnect;
	318	} # end finish
	319
	320
	321	## DNSDB::initGlobals()
	322	# Initialize global variables
	323	# NB: this does NOT include web-specific session variables!
	324	# Requires a database handle
	325	sub initGlobals {
	326	my $dbh = shift;
	327
[208]	328	# load record types from database
[2]	329	my $sth = $dbh->prepare("select val,name from rectypes");
	330	$sth->execute;
	331	while (my ($recval,$recname) = $sth->fetchrow_array()) {
	332	$typemap{$recval} = $recname;
	333	$reverse_typemap{$recname} = $recval;
	334	}
	335	} # end initGlobals
	336
	337
[65]	338	## DNSDB::initPermissions()
	339	# Set up permissions global
	340	# Takes database handle and UID
	341	sub initPermissions {
	342	my $dbh = shift;
	343	my $uid = shift;
	344
	345	# %permissions = $(getPermissions($dbh,'user',$uid));
	346	getPermissions($dbh, 'user', $uid, \%permissions);
	347
	348	} # end initPermissions()
	349
	350
	351	## DNSDB::getPermissions()
	352	# Get permissions from DB
	353	# Requires DB handle, group or user flag, ID, and hashref.
	354	sub getPermissions {
	355	my $dbh = shift;
	356	my $type = shift;
	357	my $id = shift;
	358	my $hash = shift;
	359
	360	my $sql = qq(
	361	SELECT
	362	p.admin,p.self_edit,
	363	p.group_create,p.group_edit,p.group_delete,
	364	p.user_create,p.user_edit,p.user_delete,
	365	p.domain_create,p.domain_edit,p.domain_delete,
	366	p.record_create,p.record_edit,p.record_delete
	367	FROM permissions p
	368	);
	369	if ($type eq 'group') {
	370	$sql .= qq(
	371	JOIN groups g ON g.permission_id=p.permission_id
	372	WHERE g.group_id=?
	373	);
	374	} else {
	375	$sql .= qq(
	376	JOIN users u ON u.permission_id=p.permission_id
	377	WHERE u.user_id=?
	378	);
	379	}
	380
	381	my $sth = $dbh->prepare($sql);
	382
	383	$sth->execute($id) or die "argh: ".$sth->errstr;
	384
	385	# my $permref = $sth->fetchrow_hashref;
	386	# return $permref;
	387	# $hash = $permref;
	388	# Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
	389	($hash->{admin},$hash->{self_edit},
	390	$hash->{group_create},$hash->{group_edit},$hash->{group_delete},
	391	$hash->{user_create},$hash->{user_edit},$hash->{user_delete},
	392	$hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
	393	$hash->{record_create},$hash->{record_edit},$hash->{record_delete})
	394	= $sth->fetchrow_array;
	395
	396	} # end getPermissions()
	397
	398
	399	## DNSDB::changePermissions()
	400	# Update an ACL entry
	401	# Takes a db handle, type, owner-id, and hashref for the changed permissions.
	402	sub changePermissions {
	403	my $dbh = shift;
	404	my $type = shift;
	405	my $id = shift;
	406	my $newperms = shift;
[87]	407	my $inherit = shift \|\| 0;
[65]	408
[78]	409	my $failmsg = '';
[66]	410
[87]	411	# see if we're switching from inherited to custom. for bonus points,
	412	# snag the permid and parent permid anyway, since we'll need the permid
	413	# to set/alter custom perms, and both if we're switching from custom to
	414	# inherited.
	415	my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id,g.permission_id".
[65]	416	" FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
[66]	417	" JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
[65]	418	" WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
	419	$sth->execute($id);
	420
[87]	421	my ($wasinherited,$permid,$parpermid) = $sth->fetchrow_array;
[66]	422
[78]	423	# hack phtoui
	424	# group id 1 is "special" in that it's it's own parent (err... possibly.)
	425	# may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
	426	$wasinherited = 0 if ($type eq 'group' && $id == 1);
	427
[66]	428	local $dbh->{AutoCommit} = 0;
	429	local $dbh->{RaiseError} = 1;
	430
	431	# Wrap all the SQL in a transaction
	432	eval {
[87]	433	if ($inherit) {
	434
	435	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='t',permission_id=? ".
	436	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($parpermid, $id) );
	437	$dbh->do("DELETE FROM permissions WHERE permission_id=?", undef, ($permid) );
	438
	439	} else {
	440
	441	if ($wasinherited) { # munge new permission entry in if we're switching from inherited perms
[66]	442	##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
[87]	443	# ... if'n'when we have groups with fully inherited permissions.
	444	# SQL is coo
	445	$dbh->do("INSERT INTO permissions ($permlist,".($type eq 'user' ? 'user' : 'group')."_id) ".
	446	"SELECT $permlist,? FROM permissions WHERE permission_id=?", undef, ($id,$permid) );
	447	($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions ".
	448	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($id) );
	449	$dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET inherit_perm='f',permission_id=? ".
	450	"WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid, $id) );
[66]	451	}
[78]	452
[87]	453	# and now set the permissions we were passed
	454	foreach (@permtypes) {
	455	if (defined ($newperms->{$_})) {
	456	$dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
	457	}
	458	}
	459
	460	} # (inherited->)? custom
	461
[66]	462	$dbh->commit;
	463	}; # end eval
	464	if ($@) {
	465	my $msg = $@;
	466	eval { $dbh->rollback; };
[87]	467	return ('FAIL',"$failmsg: $msg ($permid)");
[66]	468	} else {
	469	return ('OK',$permid);
	470	}
	471
[65]	472	} # end changePermissions()
	473
	474
[67]	475	## DNSDB::comparePermissions()
	476	# Compare two permission hashes
	477	# Returns '>', '<', '=', '!'
	478	sub comparePermissions {
	479	my $p1 = shift;
	480	my $p2 = shift;
	481
	482	my $retval = '='; # assume equality until proven otherwise
	483
	484	no warnings "uninitialized";
	485
	486	foreach (@permtypes) {
	487	next if $p1->{$_} == $p2->{$_}; # equal is good
	488	if ($p1->{$_} && !$p2->{$_}) {
	489	if ($retval eq '<') { # if we've already found an unequal pair where
	490	$retval = '!'; # $p2 has more access, and we now find a pair
	491	last; # where $p1 has more access, the overall access
	492	} # is neither greater or lesser, it's unequal.
	493	$retval = '>';
	494	}
	495	if (!$p1->{$_} && $p2->{$_}) {
	496	if ($retval eq '>') { # if we've already found an unequal pair where
	497	$retval = '!'; # $p1 has more access, and we now find a pair
	498	last; # where $p2 has more access, the overall access
	499	} # is neither greater or lesser, it's unequal.
	500	$retval = '<';
	501	}
	502	}
	503	return $retval;
	504	} # end comparePermissions()
	505
	506
[112]	507	## DNSDB::changeGroup()
	508	# Change group ID of an entity
	509	# Takes a database handle, entity type, entity ID, and new group ID
	510	sub changeGroup {
	511	my $dbh = shift;
	512	my $type = shift;
	513	my $id = shift;
	514	my $newgrp = shift;
	515
	516	##fixme: fail on not enough args
	517	#return ('FAIL', "Missing
	518
	519	if ($type eq 'domain') {
	520	$dbh->do("UPDATE domains SET group_id=? WHERE domain_id=?", undef, ($newgrp, $id))
	521	or return ('FAIL','Group change failed: '.$dbh->errstr);
	522	} elsif ($type eq 'user') {
	523	$dbh->do("UPDATE users SET group_id=? WHERE user_id=?", undef, ($newgrp, $id))
	524	or return ('FAIL','Group change failed: '.$dbh->errstr);
	525	} elsif ($type eq 'group') {
	526	$dbh->do("UPDATE groups SET parent_group_id=? WHERE group_id=?", undef, ($newgrp, $id))
	527	or return ('FAIL','Group change failed: '.$dbh->errstr);
	528	}
	529	return ('OK','OK');
	530	} # end changeGroup()
	531
	532
[55]	533	## DNSDB::_log()
	534	# Log an action
	535	# Internal sub
[192]	536	# Takes a database handle, domain_id, user_id, group_id, email, name and log entry
[193]	537	##fixme: convert to trailing hash for user info
	538	# User info must contain a (user ID OR username)+fullname
[55]	539	sub _log {
[190]	540	my $dbh = shift;
	541	my ($domain_id,$user_id,$group_id,$username,$name,$entry) = @_;
	542
[193]	543	##fixme: need better way(s?) to snag userinfo for log entries. don't want to have
	544	# to pass around yet another constant (already passing $dbh, shouldn't need to)
[195]	545	my $fullname;
[193]	546	if (!$user_id) {
[195]	547	($user_id, $fullname) = $dbh->selectrow_array("SELECT user_id, firstname \|\| ' ' \|\| lastname FROM users".
[193]	548	" WHERE username=?", undef, ($username));
	549	} elsif (!$username) {
[195]	550	($username, $fullname) = $dbh->selectrow_array("SELECT username, firstname \|\| ' ' \|\| lastname FROM users".
[193]	551	" WHERE user_id=?", undef, ($user_id));
[195]	552	} else {
	553	($fullname) = $dbh->selectrow_array("SELECT firstname \|\| ' ' \|\| lastname FROM users".
	554	" WHERE user_id=?", undef, ($user_id));
[193]	555	}
	556
	557	$name = $fullname if !$name;
	558
[190]	559	##fixme: farm out the actual logging to different subs for file, syslog, internal, etc based on config
	560	$dbh->do("INSERT INTO log (domain_id,user_id,group_id,email,name,entry) VALUES (?,?,?,?,?,?)", undef,
	561	($domain_id,$user_id,$group_id,$username,$name,$entry));
	562	# 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
	563	# 1 2 3 4 5 6 7
[55]	564	} # end _log
	565
	566
[2]	567	##
	568	## Processing subs
	569	##
	570
	571	## DNSDB::addDomain()
	572	# Add a domain
[190]	573	# Takes a database handle, domain name, numeric group, boolean(ish) state (active/inactive),
	574	# and user info hash (for logging).
[2]	575	# Returns a status code and message
	576	sub addDomain {
	577	$errstr = '';
	578	my $dbh = shift;
	579	return ('FAIL',"Need database handle") if !$dbh;
	580	my $domain = shift;
[91]	581	return ('FAIL',"Domain must not be blank") if !$domain;
[2]	582	my $group = shift;
	583	return ('FAIL',"Need group") if !defined($group);
	584	my $state = shift;
	585	return ('FAIL',"Need domain status") if !defined($state);
	586
[190]	587	my %userinfo = @_; # remaining bits.
	588	# user ID, username, user full name
	589
[116]	590	$state = 1 if $state =~ /^active$/;
	591	$state = 1 if $state =~ /^on$/;
	592	$state = 0 if $state =~ /^inactive$/;
	593	$state = 0 if $state =~ /^off$/;
	594
	595	return ('FAIL',"Invalid domain status") if $state !~ /^\d+$/;
	596
[190]	597	return ('FAIL', "Invalid characters in domain") if $domain !~ /^[a-zA-Z0-9_.-]+$/;
	598
[38]	599	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[3]	600	my $dom_id;
	601
[38]	602	# quick check to start to see if we've already got one
	603	$sth->execute($domain);
	604	($dom_id) = $sth->fetchrow_array;
	605
	606	return ('FAIL', "Domain already exists") if $dom_id;
	607
[2]	608	# Allow transactions, and raise an exception on errors so we can catch it later.
	609	# Use local to make sure these get "reset" properly on exiting this block
	610	local $dbh->{AutoCommit} = 0;
	611	local $dbh->{RaiseError} = 1;
	612
	613	# Wrap all the SQL in a transaction
	614	eval {
	615	# insert the domain...
[190]	616	$dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)", undef, ($domain, $group, $state));
[2]	617
	618	# get the ID...
[190]	619	($dom_id) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain));
[2]	620
[190]	621	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
	622	"Added ".($state ? 'active' : 'inactive')." domain $domain");
	623
[2]	624	# ... and now we construct the standard records from the default set. NB: group should be variable.
[190]	625	my $sth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
	626	my $sth_in = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,distance,weight,port,ttl)".
	627	" VALUES ($dom_id,?,?,?,?,?,?,?)");
	628	$sth->execute($group);
[3]	629	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
[2]	630	$host =~ s/DOMAIN/$domain/g;
[37]	631	$val =~ s/DOMAIN/$domain/g;
[3]	632	$sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
[190]	633	if ($typemap{$type} eq 'SOA') {
	634	my @tmp1 = split /:/, $host;
	635	my @tmp2 = split /:/, $val;
	636	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
	637	"[new $domain] Added SOA record [contact $tmp1[0]] [master $tmp1[1]] ".
	638	"[refresh $tmp2[0]] [retry $tmp2[1]] [expire $tmp2[2]] [minttl $tmp2[3]], TTL $ttl");
	639	} else {
	640	my $logentry = "[new $domain] Added record '$host $typemap{$type}";
	641	$logentry .= " [distance $dist]" if $typemap{$type} eq 'MX';
	642	$logentry .= " [priority $dist] [weight $weight] [port $port]" if $typemap{$type} eq 'SRV';
	643	_log($dbh, $dom_id, $userinfo{id}, $group, $userinfo{name}, $userinfo{fullname},
	644	$logentry." $val', TTL $ttl");
	645	}
[2]	646	}
	647
	648	# once we get here, we should have suceeded.
	649	$dbh->commit;
	650	}; # end eval
	651
	652	if ($@) {
	653	my $msg = $@;
	654	eval { $dbh->rollback; };
[193]	655	return ('FAIL',$msg);
[2]	656	} else {
[3]	657	return ('OK',$dom_id);
[2]	658	}
	659	} # end addDomain
	660
	661
[3]	662	## DNSDB::delDomain()
	663	# Delete a domain.
	664	# for now, just delete the records, then the domain.
	665	# later we may want to archive it in some way instead (status code 2, for example?)
	666	sub delDomain {
	667	my $dbh = shift;
[5]	668	my $domid = shift;
[3]	669
	670	# Allow transactions, and raise an exception on errors so we can catch it later.
	671	# Use local to make sure these get "reset" properly on exiting this block
	672	local $dbh->{AutoCommit} = 0;
	673	local $dbh->{RaiseError} = 1;
	674
[23]	675	my $failmsg = '';
	676
[3]	677	# Wrap all the SQL in a transaction
	678	eval {
[5]	679	my $sth = $dbh->prepare("delete from records where domain_id=?");
[23]	680	$failmsg = "Failure removing domain records";
[5]	681	$sth->execute($domid);
	682	$sth = $dbh->prepare("delete from domains where domain_id=?");
[23]	683	$failmsg = "Failure removing domain";
[5]	684	$sth->execute($domid);
[3]	685
	686	# once we get here, we should have suceeded.
[23]	687	$dbh->commit;
[3]	688	}; # end eval
	689
	690	if ($@) {
	691	my $msg = $@;
	692	eval { $dbh->rollback; };
[23]	693	return ('FAIL',"$failmsg: $msg");
[3]	694	} else {
	695	return ('OK','OK');
	696	}
	697
	698	} # end delDomain()
	699
	700
[2]	701	## DNSDB::domainName()
	702	# Return the domain name based on a domain ID
	703	# Takes a database handle and the domain ID
	704	# Returns the domain name or undef on failure
	705	sub domainName {
	706	$errstr = '';
	707	my $dbh = shift;
	708	my $domid = shift;
[91]	709	my ($domname) = $dbh->selectrow_array("SELECT domain FROM domains WHERE domain_id=?", undef, ($domid) );
[2]	710	$errstr = $DBI::errstr if !$domname;
	711	return $domname if $domname;
[91]	712	} # end domainName()
[2]	713
	714
[91]	715	## DNSDB::domainID()
	716	# Takes a database handle and domain name
	717	# Returns the domain ID number
	718	sub domainID {
	719	$errstr = '';
	720	my $dbh = shift;
	721	my $domain = shift;
	722	my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE domain=?", undef, ($domain) );
	723	$errstr = $DBI::errstr if !$domid;
	724	return $domid if $domid;
	725	} # end domainID()
	726
	727
[18]	728	## DNSDB::addGroup()
	729	# Add a group
[66]	730	# Takes a database handle, group name, parent group, hashref for permissions,
	731	# and optional template-vs-cloneme flag
[18]	732	# Returns a status code and message
	733	sub addGroup {
	734	$errstr = '';
	735	my $dbh = shift;
[20]	736	my $groupname = shift;
	737	my $pargroup = shift;
[66]	738	my $permissions = shift;
[18]	739
[66]	740	# 0 indicates "custom", hardcoded.
[18]	741	# Any other value clones that group's default records, if it exists.
[66]	742	my $inherit = shift \|\| 0;
	743	##fixme: need a flag to indicate clone records or <?> ?
[18]	744
	745	# Allow transactions, and raise an exception on errors so we can catch it later.
	746	# Use local to make sure these get "reset" properly on exiting this block
	747	local $dbh->{AutoCommit} = 0;
	748	local $dbh->{RaiseError} = 1;
	749
[38]	750	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
	751	my $group_id;
	752
	753	# quick check to start to see if we've already got one
	754	$sth->execute($groupname);
	755	($group_id) = $sth->fetchrow_array;
	756
	757	return ('FAIL', "Group already exists") if $group_id;
	758
[18]	759	# Wrap all the SQL in a transaction
	760	eval {
[38]	761	$sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
[20]	762	$sth->execute($pargroup,$groupname);
[18]	763
	764	$sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
[20]	765	$sth->execute($groupname);
	766	my ($groupid) = $sth->fetchrow_array();
[18]	767
[66]	768	# Permissions
	769	if ($inherit) {
	770	} else {
	771	my @permvals;
	772	foreach (@permtypes) {
	773	if (!defined ($permissions->{$_})) {
	774	push @permvals, 0;
	775	} else {
	776	push @permvals, $permissions->{$_};
	777	}
	778	}
	779
	780	$sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
	781	$sth->execute($groupid,@permvals);
	782
	783	$sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
	784	$sth->execute($groupid);
	785	my ($permid) = $sth->fetchrow_array();
	786
	787	$dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
	788	} # done permission fiddling
	789
	790	# Default records
[18]	791	$sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
[20]	792	"VALUES ($groupid,?,?,?,?,?,?,?)");
[66]	793	if ($inherit) {
[87]	794	# Duplicate records from parent. Actually relying on inherited records feels
	795	# very fragile, and it would be problematic to roll over at a later time.
[18]	796	my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
[87]	797	$sth2->execute($pargroup);
[18]	798	while (my @clonedata = $sth2->fetchrow_array) {
	799	$sth->execute(@clonedata);
	800	}
	801	} else {
[66]	802	##fixme: Hardcoding is Bad, mmmmkaaaay?
[18]	803	# reasonable basic defaults for SOA, MX, NS, and minimal hosting
	804	# could load from a config file, but somewhere along the line we need hardcoded bits.
	805	$sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
	806	$sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
	807	$sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
	808	$sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
	809	$sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
	810	$sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
	811	}
	812
	813	# once we get here, we should have suceeded.
	814	$dbh->commit;
	815	}; # end eval
	816
	817	if ($@) {
	818	my $msg = $@;
	819	eval { $dbh->rollback; };
	820	return ('FAIL',$msg);
	821	} else {
	822	return ('OK','OK');
	823	}
	824
	825	} # end addGroup()
	826
	827
[22]	828	## DNSDB::delGroup()
	829	# Delete a group.
	830	# Takes a group ID
	831	# Returns a status code and message
	832	sub delGroup {
	833	my $dbh = shift;
	834	my $groupid = shift;
	835
	836	# Allow transactions, and raise an exception on errors so we can catch it later.
	837	# Use local to make sure these get "reset" properly on exiting this block
	838	local $dbh->{AutoCommit} = 0;
	839	local $dbh->{RaiseError} = 1;
	840
	841	##fixme: locate "knowable" error conditions and deal with them before the eval
[23]	842	# ... or inside, whatever.
[22]	843	# -> domains still exist in group
	844	# -> ...
[23]	845	my $failmsg = '';
[22]	846
	847	# Wrap all the SQL in a transaction
	848	eval {
[23]	849	my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
[22]	850	$sth->execute($groupid);
[23]	851	my ($domcnt) = $sth->fetchrow_array;
	852	$failmsg = "Can't remove group ".groupName($dbh,$groupid);
	853	die "$domcnt domains still in group\n" if $domcnt;
	854
	855	$sth = $dbh->prepare("delete from default_records where group_id=?");
	856	$failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
	857	$sth->execute($groupid);
[22]	858	$sth = $dbh->prepare("delete from groups where group_id=?");
[23]	859	$failmsg = "Failed to remove group ".groupName($dbh,$groupid);
[22]	860	$sth->execute($groupid);
	861
	862	# once we get here, we should have suceeded.
	863	$dbh->commit;
	864	}; # end eval
	865
	866	if ($@) {
	867	my $msg = $@;
	868	eval { $dbh->rollback; };
[23]	869	return ('FAIL',"$failmsg: $msg");
[22]	870	} else {
	871	return ('OK','OK');
	872	}
	873	} # end delGroup()
	874
	875
[19]	876	## DNSDB::getChildren()
	877	# Get a list of all groups whose parent^n is group <n>
[24]	878	# Takes a database handle, group ID, reference to an array to put the group IDs in,
	879	# and an optional flag to return only immediate children or all children-of-children
	880	# default to returning all children
[19]	881	# Calls itself
	882	sub getChildren {
	883	$errstr = '';
	884	my $dbh = shift;
[20]	885	my $rootgroup = shift;
	886	my $groupdest = shift;
[24]	887	my $immed = shift \|\| 'all';
[19]	888
	889	# special break for default group; otherwise we get stuck.
[20]	890	if ($rootgroup == 1) {
[19]	891	# by definition, group 1 is the Root Of All Groups
[24]	892	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
	893	($immed ne 'all' ? " AND parent_group_id=1" : ''));
[19]	894	$sth->execute;
	895	while (my @this = $sth->fetchrow_array) {
[20]	896	push @$groupdest, @this;
[19]	897	}
	898	} else {
	899	my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
[20]	900	$sth->execute($rootgroup);
[19]	901	return if $sth->rows == 0;
[20]	902	my @grouplist;
	903	while (my ($group) = $sth->fetchrow_array) {
	904	push @$groupdest, $group;
[24]	905	getChildren($dbh,$group,$groupdest) if $immed eq 'all';
[19]	906	}
	907	}
	908	} # end getChildren()
	909
	910
[20]	911	## DNSDB::groupName()
[17]	912	# Return the group name based on a group ID
	913	# Takes a database handle and the group ID
	914	# Returns the group name or undef on failure
[20]	915	sub groupName {
[13]	916	$errstr = '';
	917	my $dbh = shift;
[20]	918	my $groupid = shift;
	919	my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
	920	$sth->execute($groupid);
	921	my ($groupname) = $sth->fetchrow_array();
	922	$errstr = $DBI::errstr if !$groupname;
	923	return $groupname if $groupname;
	924	} # end groupName
[13]	925
	926
[118]	927	## DNSDB::groupID()
	928	# Return the group ID based on the group name
	929	# Takes a database handle and the group name
	930	# Returns the group ID or undef on failure
	931	sub groupID {
	932	$errstr = '';
	933	my $dbh = shift;
	934	my $group = shift;
	935	my ($grpid) = $dbh->selectrow_array("SELECT group_id FROM groups WHERE group=?", undef, ($group) );
	936	$errstr = $DBI::errstr if !$grpid;
	937	return $grpid if $grpid;
	938	} # end groupID()
	939
	940
[24]	941	## DNSDB::addUser()
[87]	942	# Add a user.
	943	# Takes a DB handle, username, group ID, password, state (active/inactive).
	944	# Optionally accepts:
	945	# user type (user/admin) - defaults to user
	946	# permissions string - defaults to inherit from group
	947	# three valid forms:
	948	# i - Inherit permissions
	949	# c:<user_id> - Clone permissions from <user_id>
	950	# C:<permission list> - Set these specific permissions
	951	# first name - defaults to username
	952	# last name - defaults to blank
	953	# phone - defaults to blank (could put other data within column def)
[90]	954	# Returns (OK,<uid>) on success, (FAIL,<message>) on failure
[24]	955	sub addUser {
	956	$errstr = '';
	957	my $dbh = shift;
	958	my $username = shift;
	959	my $group = shift;
	960	my $pass = shift;
	961	my $state = shift;
[25]	962
[90]	963	return ('FAIL', "Missing one or more required entries") if !defined($state);
	964	return ('FAIL', "Username must not be blank") if !$username;
[87]	965
[25]	966	my $type = shift \|\| 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
	967
[67]	968	my $permstring = shift \|\| 'i'; # default is to inhert permissions from group
	969
[25]	970	my $fname = shift \|\| $username;
[24]	971	my $lname = shift \|\| '';
[25]	972	my $phone = shift \|\| ''; # not going format-check
[24]	973
[38]	974	my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
[24]	975	my $user_id;
	976
[38]	977	# quick check to start to see if we've already got one
	978	$sth->execute($username);
	979	($user_id) = $sth->fetchrow_array;
	980
	981	return ('FAIL', "User already exists") if $user_id;
	982
[24]	983	# Allow transactions, and raise an exception on errors so we can catch it later.
	984	# Use local to make sure these get "reset" properly on exiting this block
	985	local $dbh->{AutoCommit} = 0;
	986	local $dbh->{RaiseError} = 1;
	987
[94]	988	my $failmsg = '';
	989
[24]	990	# Wrap all the SQL in a transaction
	991	eval {
[87]	992	# insert the user... note we set inherited perms by default since
	993	# it's simple and cleans up some other bits of state
	994	my $sth = $dbh->prepare("INSERT INTO users ".
	995	"(group_id,username,password,firstname,lastname,phone,type,status,permission_id,inherit_perm) ".
	996	"VALUES (?,?,?,?,?,?,?,?,(SELECT permission_id FROM permissions WHERE group_id=?),'t')");
	997	$sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state,$group);
[24]	998
	999	# get the ID...
[94]	1000	($user_id) = $dbh->selectrow_array("SELECT currval('users_user_id_seq')");
[24]	1001
[87]	1002	# Permissions! Gotta set'em all!
	1003	die "Invalid permission string $permstring"
	1004	if $permstring !~ /^(?:
	1005	i # inherit
	1006	\|c:\d+ # clone
	1007	# custom. no, the leading , is not a typo
[111]	1008	\|C:(?:,(?:group\|user\|domain\|record\|self)_(?:edit\|create\|delete))*
[87]	1009	)$/x;
	1010	# bleh. I'd call another function to do my dirty work, but we're in the middle of a transaction already.
	1011	if ($permstring ne 'i') {
	1012	# for cloned or custom permissions, we have to create a new permissions entry.
	1013	my $clonesrc = $group;
	1014	if ($permstring =~ /^c:(\d+)/) { $clonesrc = $1; }
	1015	$dbh->do("INSERT INTO permissions ($permlist,user_id) ".
	1016	"SELECT $permlist,? FROM permissions WHERE permission_id=".
	1017	"(SELECT permission_id FROM permissions WHERE ".($permstring =~ /^c:/ ? 'user' : 'group')."_id=?)",
	1018	undef, ($user_id,$clonesrc) );
	1019	$dbh->do("UPDATE users SET permission_id=".
	1020	"(SELECT permission_id FROM permissions WHERE user_id=?) ".
	1021	"WHERE user_id=?", undef, ($user_id, $user_id) );
	1022	}
	1023	if ($permstring =~ /^C:/) {
	1024	# finally for custom permissions, we set the passed-in permissions (and unset
	1025	# any that might have been brought in by the clone operation above)
	1026	my ($permid) = $dbh->selectrow_array("SELECT permission_id FROM permissions WHERE user_id=?",
	1027	undef, ($user_id) );
	1028	foreach (@permtypes) {
	1029	if ($permstring =~ /,$_/) {
	1030	$dbh->do("UPDATE permissions SET $_='t' WHERE permission_id=?", undef, ($permid) );
	1031	} else {
	1032	$dbh->do("UPDATE permissions SET $_='f' WHERE permission_id=?", undef, ($permid) );
	1033	}
	1034	}
	1035	}
	1036
	1037	$dbh->do("UPDATE users SET inherit_perm='n' WHERE user_id=?", undef, ($user_id) );
	1038
[25]	1039	##fixme: add another table to hold name/email for log table?
	1040
[24]	1041	# once we get here, we should have suceeded.
	1042	$dbh->commit;
	1043	}; # end eval
	1044
	1045	if ($@) {
	1046	my $msg = $@;
	1047	eval { $dbh->rollback; };
[87]	1048	return ('FAIL',$msg." $failmsg");
[24]	1049	} else {
	1050	return ('OK',$user_id);
	1051	}
	1052	} # end addUser
	1053
	1054
[55]	1055	## DNSDB::checkUser()
	1056	# Check user/pass combo on login
	1057	sub checkUser {
	1058	my $dbh = shift;
	1059	my $user = shift;
[56]	1060	my $inpass = shift;
[55]	1061
	1062	my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
	1063	$sth->execute($user);
	1064	my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
	1065	my $loginfailed = 1 if !defined($uid);
	1066
	1067	if ($pass =~ m\|^\$1\$([A-Za-z0-9/.]+)\$\|) {
[56]	1068	$loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
[55]	1069	} else {
[56]	1070	$loginfailed = 1 if $pass ne $inpass;
[55]	1071	}
	1072
	1073	# nnnngggg
	1074	return ($uid, $gid);
	1075	} # end checkUser
	1076
	1077
[83]	1078	## DNSDB:: updateUser()
[90]	1079	# Update general data about user
[83]	1080	sub updateUser {
	1081	my $dbh = shift;
[118]	1082
	1083	##fixme: tweak calling convention so that we can update any given bit of data
[83]	1084	my $uid = shift;
	1085	my $username = shift;
	1086	my $group = shift;
	1087	my $pass = shift;
	1088	my $state = shift;
[87]	1089	my $type = shift \|\| 'u';
[83]	1090	my $fname = shift \|\| $username;
	1091	my $lname = shift \|\| '';
	1092	my $phone = shift \|\| ''; # not going format-check
	1093
	1094	my $failmsg = '';
	1095
	1096	# Allow transactions, and raise an exception on errors so we can catch it later.
	1097	# Use local to make sure these get "reset" properly on exiting this block
	1098	local $dbh->{AutoCommit} = 0;
	1099	local $dbh->{RaiseError} = 1;
	1100
	1101	my $sth;
	1102
	1103	# Password can be left blank; if so we assume there's one on file.
	1104	# Actual blank passwords are bad, mm'kay?
	1105	if (!$pass) {
	1106	$sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
	1107	$sth->execute($uid);
	1108	($pass) = $sth->fetchrow_array;
	1109	} else {
	1110	$pass = unix_md5_crypt($pass);
	1111	}
	1112
	1113	eval {
	1114	my $sth = $dbh->prepare(q(
	1115	UPDATE users
	1116	SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
	1117	WHERE user_id=?
	1118	)
	1119	);
	1120	$sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
	1121	$dbh->commit;
	1122	};
	1123	if ($@) {
	1124	my $msg = $@;
	1125	eval { $dbh->rollback; };
	1126	return ('FAIL',"$failmsg: $msg");
	1127	} else {
	1128	return ('OK','OK');
	1129	}
	1130	} # end updateUser()
	1131
	1132
[24]	1133	## DNSDB::delUser()
	1134	#
	1135	sub delUser {
[25]	1136	my $dbh = shift;
	1137	return ('FAIL',"Need database handle") if !$dbh;
	1138	my $userid = shift;
	1139	return ('FAIL',"Missing userid") if !defined($userid);
	1140
	1141	my $sth = $dbh->prepare("delete from users where user_id=?");
	1142	$sth->execute($userid);
	1143
	1144	return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
	1145
	1146	return ('OK','OK');
	1147
[24]	1148	} # end delUser
	1149
	1150
[25]	1151	## DNSDB::userFullName()
	1152	# Return a pretty string!
	1153	# Takes a user_id and optional printf-ish string to indicate which pieces where:
	1154	# %u for the username
	1155	# %f for the first name
	1156	# %l for the last name
	1157	# All other text in the passed string will be left as-is.
	1158	##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
	1159	sub userFullName {
	1160	$errstr = '';
	1161	my $dbh = shift;
	1162	my $userid = shift;
	1163	my $fullformat = shift \|\| '%f %l (%u)';
	1164	my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
	1165	$sth->execute($userid);
	1166	my ($uname,$fname,$lname) = $sth->fetchrow_array();
	1167	$errstr = $DBI::errstr if !$uname;
	1168
	1169	$fullformat =~ s/\%u/$uname/g;
	1170	$fullformat =~ s/\%f/$fname/g;
	1171	$fullformat =~ s/\%l/$lname/g;
	1172
	1173	return $fullformat;
	1174	} # end userFullName
	1175
	1176
[51]	1177	## DNSDB::userStatus()
	1178	# Sets and/or returns a user's status
	1179	# Takes a database handle, user ID and optionally a status argument
	1180	# Returns undef on errors.
	1181	sub userStatus {
	1182	my $dbh = shift;
	1183	my $id = shift;
	1184	my $newstatus = shift;
	1185
	1186	return undef if $id !~ /^\d+$/;
	1187
	1188	my $sth;
	1189
	1190	# ooo, fun! let's see what we were passed for status
	1191	if ($newstatus) {
	1192	$sth = $dbh->prepare("update users set status=? where user_id=?");
	1193	# ass-u-me caller knows what's going on in full
	1194	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	1195	$sth->execute($newstatus,$id);
	1196	} elsif ($newstatus =~ /^usero(?:n\|ff)$/) {
	1197	$sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
	1198	}
	1199	}
	1200
	1201	$sth = $dbh->prepare("select status from users where user_id=?");
	1202	$sth->execute($id);
	1203	my ($status) = $sth->fetchrow_array;
	1204	return $status;
	1205	} # end userStatus()
	1206
	1207
[83]	1208	## DNSDB::getUserData()
	1209	# Get misc user data for display
	1210	sub getUserData {
	1211	my $dbh = shift;
	1212	my $uid = shift;
	1213
	1214	my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
	1215	"FROM users WHERE user_id=?");
	1216	$sth->execute($uid);
	1217	return $sth->fetchrow_hashref();
	1218
	1219	} # end getUserData()
	1220
	1221
[2]	1222	## DNSDB::getSOA()
	1223	# Return all suitable fields from an SOA record in separate elements of a hash
	1224	# Takes a database handle, default/live flag, and group (default) or domain (live) ID
	1225	sub getSOA {
	1226	$errstr = '';
	1227	my $dbh = shift;
	1228	my $def = shift;
	1229	my $id = shift;
	1230	my %ret;
	1231
[101]	1232	# (ab)use distance and weight columns to store SOA data
	1233
	1234	my $sql = "SELECT record_id,host,val,ttl,distance from";
[2]	1235	if ($def eq 'def' or $def eq 'y') {
[101]	1236	$sql .= " default_records WHERE group_id=? AND type=$reverse_typemap{SOA}";
[2]	1237	} else {
	1238	# we're editing a live SOA record; find based on domain
[101]	1239	$sql .= " records WHERE domain_id=? AND type=$reverse_typemap{SOA}";
[2]	1240	}
	1241	my $sth = $dbh->prepare($sql);
[101]	1242	$sth->execute($id);
[2]	1243
[121]	1244	my ($recid,$host,$val,$ttl,$serial) = $sth->fetchrow_array() or return;
[202]	1245	my ($contact,$prins) = split /:/, $host;
[2]	1246	my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
	1247
	1248	$ret{recid} = $recid;
	1249	$ret{ttl} = $ttl;
[101]	1250	$ret{serial} = $serial;
[2]	1251	$ret{prins} = $prins;
	1252	$ret{contact} = $contact;
	1253	$ret{refresh} = $refresh;
	1254	$ret{retry} = $retry;
	1255	$ret{expire} = $expire;
	1256	$ret{minttl} = $minttl;
	1257
	1258	return %ret;
	1259	} # end getSOA()
	1260
	1261
	1262	## DNSDB::getRecLine()
	1263	# Return all data fields for a zone record in separate elements of a hash
	1264	# Takes a database handle, default/live flag, and record ID
	1265	sub getRecLine {
	1266	$errstr = '';
	1267	my $dbh = shift;
	1268	my $def = shift;
	1269	my $id = shift;
	1270
[130]	1271	my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl".
	1272	(($def eq 'def' or $def eq 'y') ? ',group_id FROM default_' : ',domain_id FROM ').
	1273	"records WHERE record_id=?";
[123]	1274	my $ret = $dbh->selectrow_hashref($sql, undef, ($id) );
[2]	1275
[90]	1276	if ($dbh->err) {
[2]	1277	$errstr = $DBI::errstr;
	1278	return undef;
	1279	}
	1280
[123]	1281	if (!$ret) {
	1282	$errstr = "No such record";
	1283	return undef;
	1284	}
	1285
[107]	1286	$ret->{parid} = (($def eq 'def' or $def eq 'y') ? $ret->{group_id} : $ret->{domain_id});
[90]	1287
	1288	return $ret;
[2]	1289	}
	1290
	1291
	1292	##fixme: should use above (getRecLine()) to get lines for below?
	1293	## DNSDB::getDomRecs()
	1294	# Return records for a domain
	1295	# Takes a database handle, default/live flag, group/domain ID, start,
	1296	# number of records, sort field, and sort order
	1297	# Returns a reference to an array of hashes
	1298	sub getDomRecs {
	1299	$errstr = '';
	1300	my $dbh = shift;
	1301	my $type = shift;
	1302	my $id = shift;
[4]	1303	my $nrecs = shift \|\| 'all';
	1304	my $nstart = shift \|\| 0;
[2]	1305
[4]	1306	## for order, need to map input to column names
	1307	my $order = shift \|\| 'host';
[72]	1308	my $direction = shift \|\| 'ASC';
[4]	1309
[135]	1310	my $filter = shift \|\| '';
	1311
[90]	1312	$type = 'y' if $type eq 'def';
	1313
[130]	1314	my $sql = "SELECT r.record_id,r.host,r.type,r.val,r.distance,r.weight,r.port,r.ttl FROM ";
[90]	1315	$sql .= "default_" if $type eq 'y';
	1316	$sql .= "records r ";
[104]	1317	$sql .= "INNER JOIN rectypes t ON r.type=t.val "; # for sorting by type alphabetically
[90]	1318	if ($type eq 'y') {
	1319	$sql .= "WHERE r.group_id=?";
[2]	1320	} else {
[90]	1321	$sql .= "WHERE r.domain_id=?";
[2]	1322	}
[104]	1323	$sql .= " AND NOT r.type=$reverse_typemap{SOA}";
[160]	1324	$sql .= " AND host ~* ?" if $filter;
[104]	1325	# use alphaorder column for "correct" ordering of sort-by-type instead of DNS RR type number
	1326	$sql .= " ORDER BY ".($order eq 'type' ? 't.alphaorder' : "r.$order")." $direction";
[90]	1327	$sql .= " LIMIT $nrecs OFFSET ".($nstart*$nrecs) if $nstart ne 'all';
[4]	1328
[222]	1329	my @bindvars = ($id);
	1330	push @bindvars, $filter if $filter;
[90]	1331	my $sth = $dbh->prepare($sql) or warn $dbh->errstr;
[222]	1332	$sth->execute(@bindvars) or warn "$sql: ".$sth->errstr;
[2]	1333
	1334	my @retbase;
	1335	while (my $ref = $sth->fetchrow_hashref()) {
	1336	push @retbase, $ref;
	1337	}
	1338
	1339	my $ret = \@retbase;
	1340	return $ret;
	1341	} # end getDomRecs()
	1342
	1343
[91]	1344	## DNSDB::getRecCount()
	1345	# Return count of non-SOA records in domain (or default records in a group)
[135]	1346	# Takes a database handle, default/live flag, group/domain ID, and optional filtering modifier
[91]	1347	# Returns the count
	1348	sub getRecCount {
	1349	my $dbh = shift;
	1350	my $defrec = shift;
	1351	my $id = shift;
[135]	1352	my $filter = shift \|\| '';
[91]	1353
[135]	1354	# keep the nasties down, since we can't ?-sub this bit. :/
	1355	# note this is chars allowed in DNS hostnames
	1356	$filter =~ s/[^a-zA-Z0-9_.:-]//g;
	1357
[222]	1358	my @bindvars = ($id);
	1359	push @bindvars, $filter if $filter;
[91]	1360	my ($count) = $dbh->selectrow_array("SELECT count(*) FROM ".
	1361	($defrec eq 'y' ? 'default_' : '')."records ".
	1362	"WHERE ".($defrec eq 'y' ? 'group' : 'domain')."_id=? ".
[135]	1363	"AND NOT type=$reverse_typemap{SOA}".
[222]	1364	($filter ? " AND host ~* ?" : ''),
	1365	undef, (@bindvars) );
[91]	1366
	1367	return $count;
	1368
	1369	} # end getRecCount()
	1370
	1371
[3]	1372	## DNSDB::addRec()
[2]	1373	# Add a new record to a domain or a group's default records
	1374	# Takes a database handle, default/live flag, group/domain ID,
	1375	# host, type, value, and TTL
	1376	# Some types require additional detail: "distance" for MX and SRV,
	1377	# and weight/port for SRV
	1378	# Returns a status code and detail message in case of error
	1379	sub addRec {
	1380	$errstr = '';
	1381	my $dbh = shift;
	1382	my $defrec = shift;
	1383	my $id = shift;
	1384
	1385	my $host = shift;
	1386	my $rectype = shift;
	1387	my $val = shift;
	1388	my $ttl = shift;
	1389
[129]	1390	# Validation
[223]	1391	my $addr = NetAddr::IP->new($val);
[160]	1392	if ($rectype == $reverse_typemap{A}) {
[223]	1393	return ('FAIL',$typemap{$rectype}." record must be a valid IPv4 address")
	1394	unless $addr && !$addr->{isv6};
[160]	1395	}
	1396	if ($rectype == $reverse_typemap{AAAA}) {
[223]	1397	return ('FAIL',$typemap{$rectype}." record must be a valid IPv6 address")
	1398	unless $addr && $addr->{isv6};
[160]	1399	}
[129]	1400
[209]	1401	return ('FAIL', "TTL must be numeric") unless $ttl =~ /^\d+$/;
	1402
[2]	1403	my $fields = ($defrec eq 'y' ? 'group_id' : 'domain_id').",host,type,val,ttl";
[24]	1404	my $vallen = "?,?,?,?,?";
	1405	my @vallist = ($id,$host,$rectype,$val,$ttl);
[2]	1406
	1407	my $dist;
	1408	if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
	1409	$dist = shift;
[209]	1410	return ('FAIL',"Distance is required for $typemap{$rectype} records") unless defined($dist);
	1411	$dist =~ s/\s*//g;
	1412	return ('FAIL',"Distance is required, and must be numeric") unless $dist =~ /^\d+$/;
[2]	1413	$fields .= ",distance";
[24]	1414	$vallen .= ",?";
	1415	push @vallist, $dist;
[2]	1416	}
	1417	my $weight;
	1418	my $port;
	1419	if ($rectype == $reverse_typemap{SRV}) {
[24]	1420	# check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
	1421	# it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
[196]	1422	return ('FAIL',"SRV records must begin with _service._protocol [$host]")
[209]	1423	unless $host =~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-zA-Z0-9-]+/;
[2]	1424	$weight = shift;
	1425	$port = shift;
[209]	1426	return ('FAIL',"Port and weight are required for SRV records") unless defined($weight) && defined($port);
	1427	$weight =~ s/\s*//g;
	1428	$port =~ s/\s*//g;
	1429	return ('FAIL',"Port and weight are required, and must be numeric")
	1430	unless $weight =~ /^\d+$/ && $port =~ /^\d+$/;
[2]	1431	$fields .= ",weight,port";
[24]	1432	$vallen .= ",?,?";
	1433	push @vallist, ($weight,$port);
[2]	1434	}
	1435
[90]	1436	# Allow transactions, and raise an exception on errors so we can catch it later.
	1437	# Use local to make sure these get "reset" properly on exiting this block
	1438	local $dbh->{AutoCommit} = 0;
	1439	local $dbh->{RaiseError} = 1;
[2]	1440
[90]	1441	eval {
	1442	$dbh->do("INSERT INTO ".($defrec eq 'y' ? 'default_' : '')."records ($fields) VALUES ($vallen)",
	1443	undef, @vallist);
	1444	$dbh->commit;
	1445	};
	1446	if ($@) {
	1447	my $msg = $@;
	1448	eval { $dbh->rollback; };
	1449	return ('FAIL',$msg);
	1450	}
[2]	1451
	1452	return ('OK','OK');
[90]	1453
[2]	1454	} # end addRec()
	1455
	1456
[16]	1457	## DNSDB::updateRec()
	1458	# Update a record
	1459	sub updateRec {
	1460	$errstr = '';
[17]	1461
[16]	1462	my $dbh = shift;
	1463	my $defrec = shift;
	1464	my $id = shift;
	1465
	1466	# all records have these
	1467	my $host = shift;
	1468	my $type = shift;
	1469	my $val = shift;
	1470	my $ttl = shift;
	1471
	1472	return('FAIL',"Missing standard argument(s)") if !defined($ttl);
	1473
	1474	# only MX and SRV will use these
	1475	my $dist = 0;
	1476	my $weight = 0;
	1477	my $port = 0;
	1478
	1479	if ($type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
[17]	1480	$dist = shift;
[223]	1481	$dist =~ s/\s+//g;
[17]	1482	return ('FAIL',"MX or SRV requires distance") if !defined($dist);
[223]	1483	return ('FAIL', "Distance must be numeric") unless $dist =~ /^\d+$/;
[16]	1484	if ($type == $reverse_typemap{SRV}) {
[17]	1485	$weight = shift;
[223]	1486	$weight =~ s/\s+//g;
[17]	1487	return ('FAIL',"SRV requires weight") if !defined($weight);
[223]	1488	return ('FAIL',"Weight must be numeric") unless $weight =~ /^\d+$/;
[17]	1489	$port = shift;
[223]	1490	$port =~ s/\s+//g;
[17]	1491	return ('FAIL',"SRV requires port") if !defined($port);
[223]	1492	return ('FAIL',"Port must be numeric") unless $port =~ /^\d+$/;
[16]	1493	}
	1494	}
	1495
[223]	1496	# Enforce IP addresses on A and AAAA types
	1497	my $addr = NetAddr::IP->new($val);
	1498	if ($type == $reverse_typemap{A}) {
	1499	return ('FAIL',$typemap{$type}." record must be a valid IPv4 address")
	1500	unless $addr && !$addr->{isv6};
	1501	}
	1502	if ($type == $reverse_typemap{AAAA}) {
	1503	return ('FAIL',$typemap{$type}." record must be a valid IPv6 address")
	1504	unless $addr && $addr->{isv6};
	1505	}
	1506
	1507	# hmm.. this might work. except possibly for something pointing to "deadbeef.ca". <g>
	1508	# if ($type == $reverse_typemap{NS} \|\| $type == $reverse_typemap{MX} \|\| $type == $reverse_typemap{SRV}) {
	1509	# if ($val =~ /^\s[\da-f:.]+\s$/) {
	1510	# return ('FAIL',"$val is not a valid IP address") if !$addr;
	1511	# }
	1512	# }
	1513
[90]	1514	local $dbh->{AutoCommit} = 0;
	1515	local $dbh->{RaiseError} = 1;
	1516
	1517	eval {
	1518	$dbh->do("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
[130]	1519	"SET host=?,val=?,type=?,ttl=?,distance=?,weight=?,port=? ".
	1520	"WHERE record_id=?", undef, ($host, $val, $type, $ttl, $dist, $weight, $port, $id) );
	1521	$dbh->commit;
[90]	1522	};
	1523	if ($@) {
	1524	my $msg = $@;
	1525	$dbh->rollback;
	1526	return ('FAIL', $msg);
	1527	}
	1528
[16]	1529	return ('OK','OK');
	1530	} # end updateRec()
	1531
	1532
[3]	1533	## DNSDB::delRec()
	1534	# Delete a record.
	1535	sub delRec {
	1536	$errstr = '';
	1537	my $dbh = shift;
	1538	my $defrec = shift;
	1539	my $id = shift;
	1540
[62]	1541	my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
[3]	1542	$sth->execute($id);
	1543
[23]	1544	return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
[3]	1545
	1546	return ('OK','OK');
	1547	} # end delRec()
	1548
	1549
[117]	1550	# Reference hashes.
	1551	my %par_tbl = (
	1552	group => 'groups',
	1553	user => 'users',
	1554	defrec => 'default_records',
	1555	domain => 'domains',
	1556	record => 'records'
	1557	);
	1558	my %id_col = (
	1559	group => 'group_id',
	1560	user => 'user_id',
	1561	defrec => 'record_id',
	1562	domain => 'domain_id',
	1563	record => 'record_id'
	1564	);
	1565	my %par_col = (
	1566	group => 'parent_group_id',
	1567	user => 'group_id',
	1568	defrec => 'group_id',
	1569	domain => 'group_id',
	1570	record => 'domain_id'
	1571	);
	1572	my %par_type = (
	1573	group => 'group',
	1574	user => 'group',
	1575	defrec => 'group',
	1576	domain => 'group',
	1577	record => 'domain'
	1578	);
	1579
[116]	1580	## DNSDB::getParents()
	1581	# Find out which entities are parent to the requested id
	1582	# Returns arrayref containing hash pairs of id/type
	1583	sub getParents {
	1584	my $dbh = shift;
	1585	my $id = shift;
	1586	my $type = shift;
[117]	1587	my $depth = shift \|\| 'all'; # valid values: 'all', 'immed', <int> (stop at this group ID)
[116]	1588
[117]	1589	my @parlist;
[116]	1590
[117]	1591	while (1) {
	1592	my $result = $dbh->selectrow_hashref("SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?",
	1593	undef, ($id) );
[152]	1594	my %tmp = ($result->{$par_col{$type}} => $par_type{$type});
	1595	unshift @parlist, \%tmp;
[117]	1596	last if $result->{$par_col{$type}} == 1; # group 1 is its own parent
[152]	1597	$id = $result->{$par_col{$type}};
[117]	1598	$type = $par_type{$type};
[116]	1599	}
	1600
[117]	1601	return \@parlist;
[116]	1602
	1603	} # end getParents()
	1604
	1605
[117]	1606	## DNSDB::isParent()
	1607	# Returns true if $id1 is a parent of $id2, false otherwise
	1608	sub isParent {
	1609	my $dbh = shift;
	1610	my $id1 = shift;
	1611	my $type1 = shift;
	1612	my $id2 = shift;
	1613	my $type2 = shift;
	1614	##todo: immediate, secondary, full (default)
	1615
[157]	1616	# Return false on invalid types
	1617	return 0 if !grep /^$type1$/, ('record','defrec','user','domain','group');
	1618	return 0 if !grep /^$type2$/, ('record','defrec','user','domain','group');
	1619
[117]	1620	# Return false on impossible relations
	1621	return 0 if $type1 eq 'record'; # nothing may be a child of a record
	1622	return 0 if $type1 eq 'defrec'; # nothing may be a child of a record
	1623	return 0 if $type1 eq 'user'; # nothing may be child of a user
	1624	return 0 if $type1 eq 'domain' && $type2 ne 'record'; # domain may not be a parent of anything other than a record
	1625
[186]	1626	# ennnhhhh.... if we're passed an id of 0, it will never be found. usual
	1627	# case would be the UI creating a new <thing>, and so we don't have an ID for
	1628	# <thing> to look up yet. in that case the UI should check the parent as well.
	1629	# argument for returning 1 is
	1630	return 0 if $id1 == 0; # nothing can have a parent id of 0
	1631	return 1 if $id2 == 0; # anything could have a child id of 0 (or "unknown")
	1632
[117]	1633	# group 1 is the ultimate root parent
	1634	return 1 if $type1 eq 'group' && $id1 == 1;
	1635
[155]	1636	# groups are always (a) parent of themselves
	1637	return 1 if $type1 eq 'group' && $type2 eq 'group' && $id1 == $id2;
	1638
[117]	1639	# almost the same loop as getParents() above
	1640	my $id = $id2;
	1641	my $type = $type2;
	1642	my $foundparent = 0;
[155]	1643
[186]	1644	my $limiter = 0;
[117]	1645	while (1) {
[155]	1646	my $sql = "SELECT $par_col{$type} FROM $par_tbl{$type} WHERE $id_col{$type} = ?";
[117]	1647	my $result = $dbh->selectrow_hashref($sql,
[157]	1648	undef, ($id) );
[186]	1649	if (!$result) {
	1650	$limiter++;
	1651	##fixme: how often will this happen on a live site?
	1652	warn "no results looking for $sql with id $id (depth $limiter)\n";
	1653	last;
	1654	}
[157]	1655	if ($result && $result->{$par_col{$type}} == $id1) {
[117]	1656	$foundparent = 1;
	1657	last;
[157]	1658	} else {
	1659	##fixme: do we care about trying to return a "no such record/domain/user/group" error?
	1660	warn $dbh->errstr." $sql, $id" if $dbh->errstr;
[117]	1661	}
	1662	# group 1 is its own parent. need this here more to break strange loops than for detecting a parent
	1663	last if $result->{$par_col{$type}} == 1;
[152]	1664	$id = $result->{$par_col{$type}};
[117]	1665	$type = $par_type{$type};
	1666	}
	1667
	1668	return $foundparent;
	1669	} # end isParent()
	1670
	1671
[3]	1672	## DNSDB::domStatus()
	1673	# Sets and/or returns a domain's status
	1674	# Takes a database handle, domain ID and optionally a status argument
	1675	# Returns undef on errors.
	1676	sub domStatus {
	1677	my $dbh = shift;
	1678	my $id = shift;
	1679	my $newstatus = shift;
	1680
	1681	return undef if $id !~ /^\d+$/;
	1682
	1683	my $sth;
	1684
	1685	# ooo, fun! let's see what we were passed for status
	1686	if ($newstatus) {
	1687	$sth = $dbh->prepare("update domains set status=? where domain_id=?");
	1688	# ass-u-me caller knows what's going on in full
	1689	if ($newstatus =~ /^[01]$/) { # only two valid for now.
	1690	$sth->execute($newstatus,$id);
	1691	} elsif ($newstatus =~ /^domo(?:n\|ff)$/) {
	1692	$sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
	1693	}
	1694	}
	1695
	1696	$sth = $dbh->prepare("select status from domains where domain_id=?");
	1697	$sth->execute($id);
	1698	my ($status) = $sth->fetchrow_array;
	1699	return $status;
	1700	} # end domStatus()
	1701
	1702
[33]	1703	## DNSDB::importAXFR
	1704	# Import a domain via AXFR
[37]	1705	# Takes AXFR host, domain to transfer, group to put the domain in,
	1706	# and optionally:
	1707	# - active/inactive state flag (defaults to active)
	1708	# - overwrite-SOA flag (defaults to off)
	1709	# - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
	1710	# Returns a status code (OK, WARN, or FAIL) and message - message should be blank
	1711	# if status is OK, but WARN includes conditions that are not fatal but should
	1712	# really be reported.
[33]	1713	sub importAXFR {
	1714	my $dbh = shift;
[35]	1715	my $ifrom_in = shift;
[33]	1716	my $domain = shift;
	1717	my $group = shift;
	1718	my $status = shift \|\| 1;
	1719	my $rwsoa = shift \|\| 0;
	1720	my $rwns = shift \|\| 0;
[37]	1721
[33]	1722	##fixme: add mode to delete&replace, merge+overwrite, merge new?
	1723
[37]	1724	my $nrecs = 0;
	1725	my $soaflag = 0;
	1726	my $nsflag = 0;
	1727	my $warnmsg = '';
	1728	my $ifrom;
[33]	1729
[35]	1730	# choke on possible bad setting in ifrom
[37]	1731	# IPv4 and v6, and valid hostnames!
[35]	1732	($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1733	return ('FAIL', "Bad AXFR source host $ifrom")
	1734	unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+\|[0-9a-z_.-]+)$/i);
	1735
[33]	1736	# Allow transactions, and raise an exception on errors so we can catch it later.
	1737	# Use local to make sure these get "reset" properly on exiting this block
	1738	local $dbh->{AutoCommit} = 0;
	1739	local $dbh->{RaiseError} = 1;
	1740
[37]	1741	my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
[34]	1742	my $dom_id;
	1743
[35]	1744	# quick check to start to see if we've already got one
[37]	1745	$sth->execute($domain);
	1746	($dom_id) = $sth->fetchrow_array;
[35]	1747
	1748	return ('FAIL', "Domain already exists") if $dom_id;
	1749
[33]	1750	eval {
	1751	# can't do this, can't nest transactions. sigh.
[35]	1752	#my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
[33]	1753
	1754	##fixme: serial
[37]	1755	my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
	1756	$sth->execute($domain,$group,$status);
[33]	1757
[35]	1758	## bizarre DBI<->Net::DNS interaction bug:
	1759	## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
[37]	1760	## fixed, apparently I was doing something odd, but not certain what it was that
	1761	## caused a commit instead of barfing
[35]	1762
[33]	1763	# get domain id so we can do the records
[37]	1764	$sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
	1765	$sth->execute($domain);
	1766	($dom_id) = $sth->fetchrow_array();
[33]	1767
[34]	1768	my $res = Net::DNS::Resolver->new;
[35]	1769	$res->nameservers($ifrom);
	1770	$res->axfr_start($domain)
	1771	or die "Couldn't begin AXFR\n";
[34]	1772
[35]	1773	while (my $rr = $res->axfr_next()) {
[33]	1774	my $type = $rr->type;
[35]	1775
[34]	1776	my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
[33]	1777	my $vallen = "?,?,?,?,?";
	1778
[37]	1779	$soaflag = 1 if $type eq 'SOA';
	1780	$nsflag = 1 if $type eq 'NS';
[35]	1781
	1782	my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
[34]	1783
	1784	# "Primary" types:
	1785	# A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
	1786	# maybe KEY
	1787
[35]	1788	# nasty big ugly case-like thing here, since we have to do some different
	1789	# processing depending on the record. le sigh.
	1790
[105]	1791	##fixme: what record types other than TXT can/will have >255-byte payloads?
	1792
[34]	1793	if ($type eq 'A') {
	1794	push @vallist, $rr->address;
	1795	} elsif ($type eq 'NS') {
[37]	1796	# hmm. should we warn here if subdomain NS'es are left alone?
	1797	next if ($rwns && ($rr->name eq $domain));
[34]	1798	push @vallist, $rr->nsdname;
[35]	1799	$nsflag = 1;
[34]	1800	} elsif ($type eq 'CNAME') {
	1801	push @vallist, $rr->cname;
	1802	} elsif ($type eq 'SOA') {
[37]	1803	next if $rwsoa;
[34]	1804	$vallist[1] = $rr->mname.":".$rr->rname;
	1805	push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
[35]	1806	$soaflag = 1;
[34]	1807	} elsif ($type eq 'PTR') {
[105]	1808	push @vallist, $rr->ptrdname;
[34]	1809	# hmm. PTR records should not be in forward zones.
	1810	} elsif ($type eq 'MX') {
[33]	1811	$sql .= ",distance";
	1812	$vallen .= ",?";
[34]	1813	push @vallist, $rr->exchange;
	1814	push @vallist, $rr->preference;
	1815	} elsif ($type eq 'TXT') {
	1816	##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
	1817	## but don't really seem enthusiastic about it.
[105]	1818	my $rrdata = $rr->txtdata;
[130]	1819	push @vallist, $rrdata;
[34]	1820	} elsif ($type eq 'SPF') {
	1821	##fixme: and the same caveat here, since it is apparently a clone of ::TXT
[105]	1822	my $rrdata = $rr->txtdata;
[130]	1823	push @vallist, $rrdata;
[34]	1824	} elsif ($type eq 'AAAA') {
	1825	push @vallist, $rr->address;
	1826	} elsif ($type eq 'SRV') {
	1827	$sql .= ",distance,weight,port" if $type eq 'SRV';
	1828	$vallen .= ",?,?,?" if $type eq 'SRV';
[37]	1829	push @vallist, $rr->target;
[34]	1830	push @vallist, $rr->priority;
	1831	push @vallist, $rr->weight;
	1832	push @vallist, $rr->port;
	1833	} elsif ($type eq 'KEY') {
[35]	1834	# we don't actually know what to do with these...
[34]	1835	push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
[35]	1836	} else {
[105]	1837	my $rrdata = $rr->rdatastr;
[130]	1838	push @vallist, $rrdata;
[35]	1839	# Finding a different record type is not fatal.... just problematic.
[37]	1840	# We may not be able to export it correctly.
[35]	1841	$warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
[33]	1842	}
	1843
[34]	1844	# BIND supports:
	1845	# A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
	1846	# PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
	1847	# ... if one can ever find the right magic to format them correctly
	1848
	1849	# Net::DNS supports:
	1850	# RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
	1851	# EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
	1852	# DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
	1853
[37]	1854	$sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
	1855	$sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
[34]	1856
[37]	1857	$nrecs++;
[34]	1858
[37]	1859	} # while axfr_next
	1860
	1861	# Overwrite SOA record
	1862	if ($rwsoa) {
	1863	$soaflag = 1;
	1864	my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1865	my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1866	$sthgetsoa->execute($group,$reverse_typemap{SOA});
	1867	while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
	1868	$host =~ s/DOMAIN/$domain/g;
	1869	$val =~ s/DOMAIN/$domain/g;
	1870	$sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
[34]	1871	}
[37]	1872	}
[34]	1873
[37]	1874	# Overwrite NS records
	1875	if ($rwns) {
	1876	$nsflag = 1;
	1877	my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
	1878	my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
	1879	$sthgetns->execute($group,$reverse_typemap{NS});
	1880	while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
	1881	$host =~ s/DOMAIN/$domain/g;
	1882	$val =~ s/DOMAIN/$domain/g;
	1883	$sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
	1884	}
	1885	}
[34]	1886
[35]	1887	die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
	1888	die "Bad zone: No SOA record!\n" if !$soaflag;
	1889	die "Bad zone: No NS records!\n" if !$nsflag;
	1890
[37]	1891	$dbh->commit;
[35]	1892
[33]	1893	};
	1894
	1895	if ($@) {
	1896	my $msg = $@;
	1897	eval { $dbh->rollback; };
[34]	1898	return ('FAIL',$msg." $warnmsg");
[33]	1899	} else {
[35]	1900	return ('WARN', $warnmsg) if $warnmsg;
[91]	1901	return ('OK',"Imported OK");
[33]	1902	}
	1903
[37]	1904	# it should be impossible to get here.
[34]	1905	return ('WARN',"OOOK!");
[33]	1906	} # end importAXFR()
	1907
	1908
[103]	1909	## DNSDB::export()
	1910	# Export the DNS database, or a part of it
	1911	# Takes database handle, export type, optional arguments depending on type
	1912	# Writes zone data to targets as appropriate for type
	1913	sub export {
	1914	my $dbh = shift;
	1915	my $target = shift;
	1916
	1917	if ($target eq 'tiny') {
	1918	__export_tiny($dbh,@_);
	1919	}
	1920	# elsif ($target eq 'foo') {
	1921	# __export_foo($dbh,@_);
	1922	#}
	1923	# etc
	1924
	1925	} # end export()
	1926
	1927
	1928	## DNSDB::__export_tiny
	1929	# Internal sub to implement tinyDNS (compatible) export
	1930	# Takes database handle, filehandle to write export to, optional argument(s)
	1931	# to determine which data gets exported
	1932	sub __export_tiny {
	1933	my $dbh = shift;
	1934	my $datafile = shift;
	1935
	1936	##fixme: slurp up further options to specify particular zone(s) to export
	1937
	1938	## Convert a bare number into an octal-coded pair of octets.
	1939	# Take optional arg to indicate a decimal or hex input. Defaults to hex.
	1940	sub octalize {
	1941	my $tmp = shift;
	1942	my $srctype = shift \|\| 'h'; # default assumes hex string
	1943	$tmp = sprintf "%0.4x", hex($tmp) if $srctype eq 'h'; # 0-pad hex to 4 digits
	1944	$tmp = sprintf "%0.4x", $tmp if $srctype eq 'd'; # 0-pad decimal to 4 hex digits
	1945	my @o = ($tmp =~ /^(..)(..)$/); # split into octets
	1946	return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
	1947	}
	1948
	1949	##fixme: fail if $datafile isn't an open, writable file
	1950
	1951	# easy case - export all evarything
	1952	# not-so-easy case - export item(s) specified
	1953	# todo: figure out what kind of list we use to export items
	1954
	1955	my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
[130]	1956	my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl ".
	1957	"FROM records WHERE domain_id=?");
[103]	1958	$domsth->execute();
	1959	while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
	1960	$recsth->execute($domid);
[130]	1961	while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $recsth->fetchrow_array) {
[108]	1962	##fixme: need to store location in the db, and retrieve it here.
	1963	# temporarily hardcoded to empty so we can include it further down.
	1964	my $loc = '';
	1965
	1966	##fixme: record validity timestamp. tinydns supports fiddling with timestamps.
	1967	# note $ttl must be set to 0 if we want to use tinydns's auto-expiring timestamps.
	1968	# timestamps are TAI64
	1969	# ~~ 2^62 + time()
	1970	my $stamp = '';
	1971
[103]	1972	# raw packet in unknown format: first byte indicates length
	1973	# of remaining data, allows up to 255 raw bytes
	1974
	1975	##fixme? append . to all host/val hostnames
	1976	if ($typemap{$type} eq 'SOA') {
	1977
	1978	# host contains pri-ns:responsible
	1979	# val is abused to contain refresh:retry:expire:minttl
	1980	##fixme: "manual" serial vs tinydns-autoserial
[202]	1981	# let's be explicit about abusing $host and $val
	1982	my ($email, $primary) = (split /:/, $host)[0,1];
	1983	my ($refresh, $retry, $expire, $min_ttl) = (split /:/, $val)[0,1,2,3];
	1984	print $datafile "Z$dom:$primary:$email"."::$refresh:$retry:$expire:$min_ttl:$ttl:$stamp:$loc\n";
[103]	1985
	1986	} elsif ($typemap{$type} eq 'A') {
	1987
[108]	1988	print $datafile "+$host:$val:$ttl:$stamp:$loc\n";
[103]	1989
	1990	} elsif ($typemap{$type} eq 'NS') {
	1991
[108]	1992	print $datafile "\&$host"."::$val:$ttl:$stamp:$loc\n";
[103]	1993
	1994	} elsif ($typemap{$type} eq 'AAAA') {
	1995
	1996	print $datafile ":$host:28:";
	1997	my $altgrp = 0;
	1998	my @altconv;
[108]	1999	# Split in to up to 8 groups of hex digits (allows for IPv6 :: 0-collapsing)
[103]	2000	foreach (split /:/, $val) {
	2001	if (/^$/) {
	2002	# flag blank entry; this is a series of 0's of (currently) unknown length
	2003	$altconv[$altgrp++] = 's';
	2004	} else {
	2005	# call sub to convert 1-4 hex digits to 2 string-rep octal bytes
	2006	$altconv[$altgrp++] = octalize($_)
	2007	}
	2008	}
	2009	foreach my $octet (@altconv) {
	2010	# if not 's', output
	2011	print $datafile $octet unless $octet =~ /^s$/;
	2012	# if 's', output (9-array length)x literal '\000\000'
	2013	print $datafile '\000\000'x(9-$altgrp) if $octet =~ /^s$/;
	2014	}
[108]	2015	print $datafile ":$ttl:$stamp:$loc\n";
[103]	2016
	2017	} elsif ($typemap{$type} eq 'MX') {
	2018
[108]	2019	print $datafile "\@$host"."::$val:$dist:$ttl:$stamp:$loc\n";
[103]	2020
	2021	} elsif ($typemap{$type} eq 'TXT') {
	2022
	2023	##fixme: split v-e-r-y long TXT strings? will need to do so for BIND export, at least
	2024	$val =~ s/:/\\072/g; # may need to replace other symbols
[108]	2025	print $datafile "'$host:$val:$ttl:$stamp:$loc\n";
[103]	2026
	2027	# by-hand TXT
	2028	#:deepnet.cx:16:2v\075spf1\040a\040a\072bacon.deepnet.cx\040a\072home.deepnet.cx\040-all:3600
	2029	#@ IN TXT "v=spf1 a a:bacon.deepnet.cx a:home.deepnet.cx -all"
	2030	#'deepnet.cx:v=spf1 a a\072bacon.deepnet.cx a\072home.deepnet.cx -all:3600
	2031
	2032	#txttest IN TXT "v=foo bar:bob kn;ob' \" !@#$%^&*()-=_+[]{}<>?"
	2033	#:txttest.deepnet.cx:16:\054v\075foo\040bar\072bob\040kn\073ob\047\040\042\040\041\100\043\044\045\136\046\052\050\051-\075\137\053\133\135\173\175\074\076\077:3600
	2034
	2035	# very long TXT record as brought in by axfr-get
	2036	# note tinydns does not support >512-byte RR data, need axfr-dns (for TCP support) for that
	2037	# also note, tinydns does not seem to support <512, >256-byte RRdata from axfr-get either. :/
	2038	#:longtxt.deepnet.cx:16:
	2039	#\170this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
	2040	#\263 it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record.
	2041	#\351 it is really long. long. very long. really very long.this is a very long txt record. it is really long. long. very long. really very long. this is a very long txt record. it is really long. long. very long. really very long.
	2042	#:3600
	2043
	2044	} elsif ($typemap{$type} eq 'CNAME') {
	2045
[108]	2046	print $datafile "C$host:$val:$ttl:$stamp:$loc\n";
[103]	2047
	2048	} elsif ($typemap{$type} eq 'SRV') {
	2049
	2050	# data is two-byte values for priority, weight, port, in that order,
	2051	# followed by length/string data
	2052
	2053	print $datafile ":$host:33:".octalize($dist,'d').octalize($weight,'d').octalize($port,'d');
	2054
	2055	$val .= '.' if $val !~ /\.$/;
	2056	foreach (split /\./, $val) {
	2057	printf $datafile "\\%0.3o%s", length($_), $_;
	2058	}
[108]	2059	print $datafile "\\000:$ttl:$stamp:$loc\n";
[103]	2060
	2061	} elsif ($typemap{$type} eq 'RP') {
	2062
	2063	# RP consists of two mostly free-form strings.
	2064	# The first is supposed to be an email address with @ replaced by . (as with the SOA contact)
	2065	# The second is the "hostname" of a TXT record with more info.
	2066	print $datafile ":$host:17:";
	2067	my ($who,$what) = split /\s/, $val;
	2068	foreach (split /\./, $who) {
	2069	printf $datafile "\\%0.3o%s", length($_), $_;
	2070	}
	2071	print $datafile '\000';
	2072	foreach (split /\./, $what) {
	2073	printf $datafile "\\%0.3o%s", length($_), $_;
	2074	}
[108]	2075	print $datafile "\\000:$ttl:$stamp:$loc\n";
[103]	2076
	2077	} elsif ($typemap{$type} eq 'PTR') {
	2078
	2079	# must handle both IPv4 and IPv6
	2080	##work
[108]	2081	# data should already be in suitable reverse order.
	2082	print $datafile "^$host:$val:$ttl:$stamp:$loc\n";
[103]	2083
[108]	2084	} else {
	2085	# raw record. we don't know what's in here, so we ASS-U-ME the user has
	2086	# put it in correctly, since either the user is messing directly with the
	2087	# database, or the record was imported via AXFR
	2088	# <split by char>
	2089	# convert anything not a-zA-Z0-9.- to octal coding
	2090
	2091	##fixme: add flag to export "unknown" record types - note we'll probably end up
	2092	# mangling them since they were written to the DB from Net::DNS::RR::<type>->rdatastr.
	2093	#print $datafile ":$host:$type:$val:$ttl:$stamp:$loc\n";
	2094
[103]	2095	} # record type if-else
	2096
	2097	} # while ($recsth)
	2098	} # while ($domsth)
	2099	} # end __export_tiny()
	2100
	2101
[197]	2102	## DNSDB::mailNotify()
	2103	# Sends notification mail to recipients regarding an IPDB operation
	2104	sub mailNotify {
	2105	my $dbh = shift;
	2106	my ($subj,$message) = @_;
	2107
	2108	return if $config{mailhost} eq 'smtp.example.com'; # do nothing if still using default SMTP host.
	2109
	2110	my $mailer = Net::SMTP->new($config{mailhost}, Hello => "dnsadmin.$config{domain}");
	2111
	2112	my $mailsender = ($config{mailsender} ? $config{mailsender} : $config{mailnotify});
	2113
	2114	$mailer->mail($mailsender);
	2115	$mailer->to($config{mailnotify});
[198]	2116	$mailer->data("From: \"$config{mailname}\" <$mailsender>\n",
	2117	"To: <$config{mailnotify}>\n",
[197]	2118	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
	2119	"Subject: $subj\n",
	2120	"X-Mailer: DNSAdmin Notify v".sprintf("%.1d",$DNSDB::VERSION)."\n",
	2121	"Organization: $config{orgname}\n",
	2122	"\n$message\n");
	2123	$mailer->quit;
	2124	}
	2125
[2]	2126	# shut Perl up
	2127	1;

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