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source: branches/stable/cgi-bin/IPDB.pm@ 198

Last change on this file since 198 was 192, checked in by Kris Deugau, 20 years ago

/branches/stable

Merge updates and changes (and bugfixes to same) from /trunk
r186,187 and r189-191

Property svn:keywords set to Date Rev Author

File size: 20.5 KB

Rev	Line
[8]	1	# ipdb/cgi-bin/IPDB.pm
[71]	2	# Contains functions for IPDB - database access, subnet mangling, block allocation, etc
[8]	3	###
	4	# SVN revision info
	5	# $Date: 2005-03-10 19:15:19 +0000 (Thu, 10 Mar 2005) $
	6	# SVN revision $Rev: 192 $
	7	# Last update by $Author: kdeugau $
	8	###
[158]	9	# Copyright (C) 2004,2005 - Kris Deugau
[8]	10
[4]	11	package IPDB;
	12
	13	use strict;
	14	use warnings;
	15	use Exporter;
[125]	16	use DBI;
[71]	17	use Net::SMTP;
	18	use POSIX;
[4]	19	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
	20
[125]	21	$VERSION = 2.0;
[4]	22	@ISA = qw(Exporter);
[125]	23	@EXPORT_OK = qw(
[168]	24	%disp_alloctypes %list_alloctypes %def_custids @citylist @poplist @masterblocks
[125]	25	%allocated %free %routed %bigfree
	26	&initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock &deleteBlock
	27	&mailNotify
	28	);
[4]	29
	30	@EXPORT = (); # Export nothing by default.
[125]	31	%EXPORT_TAGS = ( ALL => [qw(
[168]	32	%disp_alloctypes %list_alloctypes %def_custids @citylist @poplist
	33	@masterblocks %allocated %free %routed %bigfree
[125]	34	&initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock
	35	&deleteBlock &mailNotify
	36	)]
	37	);
[4]	38
[125]	39	##
	40	## Global variables
	41	##
	42	our %disp_alloctypes;
	43	our %list_alloctypes;
[168]	44	our %def_custids;
[125]	45	our @citylist;
	46	our @poplist;
	47	our @masterblocks;
	48	our %allocated;
	49	our %free;
	50	our %routed;
	51	our %bigfree;
[71]	52
[125]	53	# Let's initialize the globals.
	54	## IPDB::initIPDBGlobals()
	55	# Initialize all globals. Takes a database handle, returns a success or error code
	56	sub initIPDBGlobals {
	57	my $dbh = $_[0];
	58	my $sth;
	59
	60	# Initialize alloctypes hashes
[168]	61	$sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
[125]	62	$sth->execute;
	63	while (my @data = $sth->fetchrow_array) {
	64	$disp_alloctypes{$data[0]} = $data[2];
[168]	65	$def_custids{$data[0]} = $data[4];
[125]	66	if ($data[3] < 900) {
	67	$list_alloctypes{$data[0]} = $data[1];
	68	}
	69	}
	70
	71	# City and POP listings
[159]	72	$sth = $dbh->prepare("select city,routing from cities order by city");
[125]	73	$sth->execute;
	74	return (undef,$sth->errstr) if $sth->err;
	75	while (my @data = $sth->fetchrow_array) {
	76	push @citylist, $data[0];
	77	if ($data[1] eq 'y') {
	78	push @poplist, $data[0];
	79	}
	80	}
	81
	82	# Master block list
[159]	83	$sth = $dbh->prepare("select cidr from masterblocks order by cidr");
[125]	84	$sth->execute;
	85	for (my $i=0; my @data = $sth->fetchrow_array(); $i++) {
	86	$masterblocks[$i] = new NetAddr::IP $data[0];
	87	$allocated{"$masterblocks[$i]"} = 0;
	88	$free{"$masterblocks[$i]"} = 0;
	89	$bigfree{"$masterblocks[$i]"} = 128; # Larger number means smaller block.
	90	# Set to 128 to prepare for IPv6
	91	$routed{"$masterblocks[$i]"} = 0;
	92	}
	93	return (undef,$sth->errstr) if $sth->err;
	94
	95	return (1,"OK");
	96	} # end initIPDBGlobals
	97
	98
	99	## IPDB::connectDB()
[4]	100	# Creates connection to IPDB.
[125]	101	# Requires the database name, username, and password.
[4]	102	# Returns a handle to the db.
[125]	103	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	104	# right changes.
	105	# This definition should be sub connectDB($$$) to be technically correct,
	106	# but this breaks. GRR.
[4]	107	sub connectDB {
[125]	108	my ($dbname,$user,$pass) = @_;
[4]	109	my $dbh;
[125]	110	my $DSN = "DBI:Pg:dbname=$dbname";
	111	# my $user = 'ipdb';
	112	# my $pw = 'ipdbpwd';
[4]	113
	114	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
[125]	115	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	116	$dbh = DBI->connect($DSN, $user, $pass, {
	117	AutoCommit => 1,
	118	PrintError => 0
	119	})
	120	or return (undef, $DBI::errstr) if(!$dbh);
[4]	121
[125]	122	# Return here if we can't select. Note that this indicates a
	123	# problem executing the select.
[185]	124	my $sth = $dbh->prepare("select type from alloctypes");
[125]	125	$sth->execute();
	126	return (undef,$DBI::errstr) if ($sth->err);
	127
	128	# See if the select returned anything (or null data). This should
	129	# succeed if the select executed, but...
	130	$sth->fetchrow();
	131	return (undef,$DBI::errstr) if ($sth->err);
	132
	133	# If we get here, we should be OK.
	134	return ($dbh,"DB connection OK");
[4]	135	} # end connectDB
	136
[125]	137
	138	## IPDB::finish()
	139	# Cleans up after database handles and so on.
	140	# Requires a database handle
	141	sub finish {
	142	my $dbh = $_[0];
	143	$dbh->disconnect;
	144	} # end finish
	145
	146
	147	## IPDB::checkDBSanity()
[4]	148	# Quick check to see if the db is responding. A full integrity
	149	# check will have to be a separate tool to walk the IP allocation trees.
	150	sub checkDBSanity {
[125]	151	my ($dbh) = $_[0];
[4]	152
	153	if (!$dbh) {
[125]	154	print "No database handle, or connection has been closed.";
	155	return -1;
[4]	156	} else {
	157	# it connects, try a stmt.
[185]	158	my $sth = $dbh->prepare("select type from alloctypes");
[4]	159	my $err = $sth->execute();
	160
	161	if ($sth->fetchrow()) {
	162	# all is well.
	163	return 1;
	164	} else {
[16]	165	print "Connected to the database, but could not execute test statement. ".$sth->errstr();
[125]	166	return -1;
[4]	167	}
	168	}
	169	# Clean up after ourselves.
[125]	170	# $dbh->disconnect;
[4]	171	} # end checkDBSanity
	172
[71]	173
[125]	174	## IPDB::allocateBlock()
[71]	175	# Does all of the magic of actually allocating a netblock
[125]	176	# Requires database handle, block to allocate, custid, type, city,
	177	# description, notes, circuit ID, block to allocate from,
	178	# Returns a success code and optional error message.
	179	sub allocateBlock {
	180	my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid) = @_;
	181
	182	my $cidr = new NetAddr::IP $_[1];
	183	my $alloc_from = new NetAddr::IP $_[2];
	184	my $sth;
[71]	185
[125]	186	# To contain the error message, if any.
	187	my $msg = "Unknown error allocating $cidr as '$type'";
[71]	188
[125]	189	# Enable transactions and error handling
	190	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	191	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	192
[159]	193	if ($type =~ /^.i$/) {
[125]	194	$msg = "Unable to assign static IP $cidr to $custid";
	195	eval {
[159]	196	# We have to do this in two parts because otherwise we lose
	197	# the ability to return the IP assigned. Should that change,
	198	# the commented SQL statement below may become usable.
[125]	199	# update poolips set custid='$custid',city='$city',available='n',
	200	# description='$desc',notes='$notes',circuitid='$circid'
	201	# where ip=(select ip from poolips where pool='$alloc_from'
	202	# and available='y' order by ip limit 1);
[159]	203
	204	$sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
	205	" and available='y' order by ip");
	206	$sth->execute;
	207
[125]	208	my @data = $sth->fetchrow_array;
[159]	209	$cidr = $data[0]; # $cidr is already declared when we get here!
[125]	210
	211	$sth = $dbh->prepare("update poolips set custid='$custid',".
	212	"city='$city',available='n',description='$desc',notes='$notes',".
	213	"circuitid='$circid'".
	214	" where ip='$cidr'");
	215	$sth->execute;
	216	$dbh->commit;
	217	};
	218	if ($@) {
	219	$msg .= ": '".$sth->errstr."'";
	220	eval { $dbh->rollback; };
	221	return ('FAIL',$msg);
	222	} else {
	223	return ('OK',"$cidr");
	224	}
	225
	226	} else { # end IP-from-pool allocation
	227
	228	if ($cidr == $alloc_from) {
	229	# Easiest case- insert in one table, delete in the other, and go home. More or less.
	230	# insert into allocations values (cidr,custid,type,city,desc) and
	231	# delete from freeblocks where cidr='cidr'
	232	# For data safety on non-transaction DBs, we delete first.
	233
	234	eval {
	235	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
[192]	236	if ($type eq 'rm') {
[125]	237	$sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
	238	" where cidr='$cidr'");
	239	$sth->execute;
[159]	240	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	241	" values ('$cidr',".$cidr->masklen.",'$city')");
[125]	242	$sth->execute;
	243	} else {
	244	# common stuff for end-use, dialup, dynDSL, pools, etc, etc.
	245
[192]	246	# special case - block is a container/"reserve" block
	247	if ($type =~ /^(.)c$/) {
	248	$sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
	249	$sth->execute;
	250	} else {
	251	# "normal" case
	252	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	253	$sth->execute;
	254	}
[159]	255	$sth = $dbh->prepare("insert into allocations".
	256	" (cidr,custid,type,city,description,notes,maskbits,circuitid)".
	257	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
[125]	258	$cidr->masklen.",'$circid')");
	259	$sth->execute;
	260
	261	# And initialize the pool, if necessary
[159]	262	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	263	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[125]	264	if ($type =~ /^.p$/) {
[159]	265	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	266	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	267	die $rmsg if $code eq 'FAIL';
	268	} elsif ($type =~ /^.d$/) {
	269	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	270	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	271	die $rmsg if $code eq 'FAIL';
[125]	272	}
	273
	274	} # routing vs non-routing netblock
	275
	276	$dbh->commit;
	277	}; # end of eval
	278	if ($@) {
[159]	279	$msg .= ": ".$@;
[125]	280	eval { $dbh->rollback; };
[159]	281	return ('FAIL',$msg);
[125]	282	} else {
	283	return ('OK',"OK");
	284	}
	285
	286	} else { # cidr != alloc_from
	287
	288	# Hard case. Allocation is smaller than free block.
	289	my $wantmaskbits = $cidr->masklen;
	290	my $maskbits = $alloc_from->masklen;
	291
	292	my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
	293
	294	# This determines which blocks will be left "free" after allocation. We take the
	295	# block we're allocating from, and split it in half. We see which half the wanted
	296	# block is in, and repeat until the wanted block is equal to one of the halves.
	297	my $i=0;
	298	my $tmp_from = $alloc_from; # So we don't munge $alloc_from
	299	while ($maskbits++ < $wantmaskbits) {
	300	my @subblocks = $tmp_from->split($maskbits);
	301	$newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
	302	$tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
	303	} # while
	304
	305	# Begin SQL transaction block
	306	eval {
	307	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
	308
	309	# Delete old freeblocks entry
	310	$sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
	311	$sth->execute();
	312
	313	# now we have to do some magic for routing blocks
[192]	314	if ($type eq 'rm') {
[125]	315
	316	# Insert the new freeblocks entries
	317	# Note that non-routed blocks are assigned to <NULL>
[159]	318	# and use the default value for the routed column ('n')
	319	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	320	" values (?, ?, '<NULL>')");
[125]	321	foreach my $block (@newfreeblocks) {
	322	$sth->execute("$block", $block->masklen);
	323	}
	324
	325	# Insert the entry in the routed table
[159]	326	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	327	" values ('$cidr',".$cidr->masklen.",'$city')");
[125]	328	$sth->execute;
	329	# Insert the (almost) same entry in the freeblocks table
[159]	330	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	331	" values ('$cidr',".$cidr->masklen.",'$city','y')");
[125]	332	$sth->execute;
	333
[192]	334	} else { # done with alloctype == rm
[125]	335
	336	# Insert the new freeblocks entries
[192]	337	# Along with some more HairyPerl(TM) in case we're inserting a
	338	# subblock (.r) allocation
[159]	339	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
[192]	340	" values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
	341	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[125]	342	foreach my $block (@newfreeblocks) {
	343	$sth->execute("$block", $block->masklen);
	344	}
[192]	345	# Special-case for reserve/"container" blocks - generate
	346	# the "extra" freeblocks entry for the container
	347	if ($type =~ /^(.)c$/) {
	348	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	349	" values ('$cidr',".$cidr->masklen.",'$city','$1')");
	350	$sth->execute;
	351	}
[125]	352	# Insert the allocations entry
[159]	353	$sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
	354	"description,notes,maskbits,circuitid)".
	355	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
	356	$cidr->masklen.",'$circid')");
[125]	357	$sth->execute;
	358
	359	# And initialize the pool, if necessary
[159]	360	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	361	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[125]	362	if ($type =~ /^.p$/) {
	363	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
[159]	364	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	365	die $rmsg if $code eq 'FAIL';
	366	} elsif ($type =~ /^.d$/) {
	367	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	368	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	369	die $rmsg if $code eq 'FAIL';
[125]	370	}
	371
[192]	372	} # done with netblock alloctype != rm
[125]	373
	374	$dbh->commit;
	375	}; # end eval
	376	if ($@) {
	377	eval { $dbh->rollback; };
	378	return ('FAIL',$msg);
	379	} else {
	380	return ('OK',"OK");
	381	}
	382
	383	} # end fullcidr != alloc_from
	384
	385	} # end static-IP vs netblock allocation
	386
	387	} # end allocateBlock()
	388
	389
	390	## IPDB::initPool()
	391	# Initializes a pool
	392	# Requires a database handle, the pool CIDR, type, city, and a parameter
	393	# indicating whether the pool should allow allocation of literally every
	394	# IP, or if it should reserve network/gateway/broadcast IPs
	395	# Note that this is NOT done in a transaction, that's why it's a private
	396	# function and should ONLY EVER get called from allocateBlock()
	397	sub initPool {
	398	my ($dbh,undef,$type,$city,$class) = @_;
	399	my $pool = new NetAddr::IP $_[1];
	400
[159]	401	##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
	402	$type =~ s/[pd]$/i/;
[125]	403	my $sth;
[159]	404	my $msg;
[125]	405
[159]	406	# Trap errors so we can pass them back to the caller. Even if the
	407	# caller is only ever supposed to be local, and therefore already
	408	# trapping errors. >:(
	409	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	410	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	411
	412	eval {
	413	# have to insert all pool IPs into poolips table as "unallocated".
	414	$sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
	415	" values ('$pool', ?, '6750400', '$city', '$type')");
	416	my @poolip_list = $pool->hostenum;
	417	if ($class eq 'all') { # (DSL-ish block - all IPs available
	418	$sth->execute($pool->addr);
	419	for (my $i=0; $i<=$#poolip_list; $i++) {
	420	$sth->execute($poolip_list[$i]->addr);
	421	}
	422	$pool--;
	423	$sth->execute($pool->addr);
	424	} else { # (real netblock)
	425	for (my $i=1; $i<=$#poolip_list; $i++) {
	426	$sth->execute($poolip_list[$i]->addr);
	427	}
[125]	428	}
[159]	429	};
	430	if ($@) {
	431	$msg = "'".$sth->errstr."'";
	432	eval { $dbh->rollback; };
	433	return ('FAIL',$msg);
	434	} else {
	435	return ('OK',"OK");
[125]	436	}
	437	} # end initPool()
	438
	439
	440	## IPDB::deleteBlock()
	441	# Removes an allocation from the database, including deleting IPs
	442	# from poolips and recombining entries in freeblocks if possible
	443	# Also handles "deleting" a static IP allocation, and removal of a master
	444	# Requires a database handle, the block to delete, and the type of block
	445	sub deleteBlock {
	446	my ($dbh,undef,$type) = @_;
	447	my $cidr = new NetAddr::IP $_[1];
	448
	449	my $sth;
	450
	451	# To contain the error message, if any.
	452	my $msg = "Unknown error deallocating $type $cidr";
	453	# Enable transactions and exception-on-errors... but only for this sub
	454	local $dbh->{AutoCommit} = 0;
	455	local $dbh->{RaiseError} = 1;
	456
	457	# First case. The "block" is a static IP
	458	# Note that we still need some additional code in the odd case
	459	# of a netblock-aligned contiguous group of static IPs
	460	if ($type =~ /^.i$/) {
	461
	462	eval {
[159]	463	$msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
[125]	464	$sth = $dbh->prepare("update poolips set custid='6750400',available='y',".
	465	"city=(select city from allocations where cidr >>= '$cidr'),".
	466	"description='',notes='',circuitid='' where ip='$cidr'");
	467	$sth->execute;
	468	$dbh->commit;
	469	};
	470	if ($@) {
	471	eval { $dbh->rollback; };
	472	return ('FAIL',$msg);
	473	} else {
	474	return ('OK',"OK");
	475	}
	476
	477	} elsif ($type eq 'mm') { # end alloctype =~ /.i/
	478
	479	$msg = "Unable to delete master block $cidr";
	480	eval {
	481	$sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
	482	$sth->execute;
	483	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	484	$sth->execute;
	485	$dbh->commit;
	486	};
	487	if ($@) {
	488	eval { $dbh->rollback; };
	489	return ('FAIL', $msg);
	490	} else {
	491	return ('OK',"OK");
	492	}
	493
	494	} else { # end alloctype master block case
	495
	496	## This is a big block; but it HAS to be done in a chunk. Any removal
	497	## of a netblock allocation may result in a larger chunk of free
	498	## contiguous IP space - which may in turn be combined into a single
	499	## netblock rather than a number of smaller netblocks.
	500
	501	eval {
	502
[192]	503	if ($type eq 'rm') {
[125]	504	$msg = "Unable to remove routing allocation $cidr";
	505	$sth = $dbh->prepare("delete from routed where cidr='$cidr'");
	506	$sth->execute;
	507	# Make sure block getting deleted is properly accounted for.
	508	$sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
	509	" where cidr='$cidr'");
	510	$sth->execute;
	511	# Set up query to start compacting free blocks.
[159]	512	$sth = $dbh->prepare("select cidr from freeblocks where ".
[125]	513	"maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
	514
	515	} else { # end alloctype routing case
	516
[192]	517	# Delete all allocations within the block being deleted. This is
	518	# deliberate and correct, and removes the need to special-case
	519	# removal of "container" blocks.
	520	$sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
[125]	521	$sth->execute;
[192]	522
[125]	523	# Special case - delete pool IPs
[159]	524	if ($type =~ /^.[pd]$/) {
[125]	525	# We have to delete the IPs from the pool listing.
	526	$sth = $dbh->prepare("delete from poolips where pool='$cidr'");
	527	$sth->execute;
	528	}
	529
	530	# Set up query for compacting free blocks.
[159]	531	$sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
[125]	532	"(select cidr from routed where cidr >>= '$cidr') ".
[192]	533	" and maskbits<=".$cidr->masklen.
	534	" and routed='".(($type =~ /^(.)r$/) ? '$1' : 'y').
	535	"' order by maskbits desc");
[125]	536
	537	} # end alloctype general case
	538
[126]	539	##TEMP
	540	## Temporary wrapper to "properly" deallocate sIP PPPoE/DSL "netblocks" in 209.91.185.0/24
	541	## Note that we should really general-case this.
	542	my $staticpool = new NetAddr::IP "209.91.185.0/24";
	543	##TEMP
	544	if ($cidr->within($staticpool)) {
	545	##TEMP
	546	# We've already deleted the block, now we have to stuff its IPs into the pool.
[127]	547	$sth = $dbh->prepare("insert into poolips values ('209.91.185.0/24',?,'6750400','Sudbury','d','y','','','')");
[126]	548	$sth->execute($cidr->addr);
	549	foreach my $ip ($cidr->hostenum) {
	550	$sth->execute("$ip");
	551	}
	552	$cidr--;
	553	$sth->execute($cidr->addr);
	554
	555	##TEMP
	556	} else {
	557	##TEMP
	558
[125]	559	# Now we look for larger-or-equal-sized free blocks in the same master (routed)
	560	# (super)block. If there aren't any, we can't combine blocks anyway. If there
	561	# are, we check to see if we can combine blocks.
	562	# Execute the statement prepared in the if-else above.
	563
	564	$sth->execute;
	565
	566	# NetAddr::IP->compact() attempts to produce the smallest inclusive block
	567	# from the caller and the passed terms.
	568	# EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
	569	# and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
	570	# .64-.95, and .96-.128), you will get an array containing a single
	571	# /25 as element 0 (.0-.127). Order is not important; you could have
	572	# $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
	573
	574	my (@together, @combinelist);
	575	my $i=0;
	576	while (my @data = $sth->fetchrow_array) {
	577	my $testIP = new NetAddr::IP $data[0];
	578	@together = $testIP->compact($cidr);
	579	my $num = @together;
	580	if ($num == 1) {
	581	$cidr = $together[0];
	582	$combinelist[$i++] = $testIP;
	583	}
	584	}
	585
[192]	586	# Clear old freeblocks entries - if any. They should all be within
	587	# the $cidr determined above.
	588	$sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
	589	$sth->execute;
[125]	590
	591	# insert "new" freeblocks entry
[192]	592	if ($type eq 'rm') {
[159]	593	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	594	" values ('$cidr',".$cidr->masklen.",'<NULL>')");
[125]	595	} else {
[159]	596	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	597	" values ('$cidr',".$cidr->masklen.
[192]	598	",(select city from routed where cidr >>= '$cidr'),'".
	599	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[125]	600	}
	601	$sth->execute;
	602
[126]	603	##TEMP
	604	}
	605	##TEMP
	606
[125]	607	# If we got here, we've succeeded. Whew!
	608	$dbh->commit;
	609	}; # end eval
	610	if ($@) {
	611	eval { $dbh->rollback; };
	612	return ('FAIL', $msg);
	613	} else {
	614	return ('OK',"OK");
	615	}
	616
	617	} # end alloctype != netblock
	618
	619	} # end deleteBlock()
	620
	621
	622	## IPDB::mailNotify()
[71]	623	# Sends notification mail to recipients regarding an IPDB operation
	624	sub mailNotify ($$$) {
	625	my ($recip,$subj,$message) = @_;
	626	my $mailer = Net::SMTP->new("smtp.example.com", Hello => "ipdb.example.com");
	627
	628	$mailer->mail('ipdb@example.com');
	629	$mailer->to($recip);
	630	$mailer->data("From: \"IP Database\" <ipdb\@example.com>\n",
[131]	631	"To: $recip\n",
[71]	632	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
	633	"Subject: {IPDB} $subj\n",
	634	"X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
	635	"Organization: Example Corp\n",
	636	"\n$message\n");
	637	$mailer->quit;
	638	}
	639
[4]	640	# Indicates module loaded OK. Required by Perl.
	641	1;

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