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source: trunk/cgi-bin/IPDB.pm@ 237

Last change on this file since 237 was 233, checked in by Kris Deugau, 20 years ago

/trunk

Merge /branches/acl r221, 222, 223, 225, 226 back to trunk

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Rev	Line
[8]	1	# ipdb/cgi-bin/IPDB.pm
[66]	2	# Contains functions for IPDB - database access, subnet mangling, block allocation, etc
[8]	3	###
	4	# SVN revision info
	5	# $Date: 2005-04-15 22:11:39 +0000 (Fri, 15 Apr 2005) $
	6	# SVN revision $Rev: 233 $
	7	# Last update by $Author: kdeugau $
	8	###
[146]	9	# Copyright (C) 2004,2005 - Kris Deugau
[8]	10
[4]	11	package IPDB;
	12
	13	use strict;
	14	use warnings;
	15	use Exporter;
[77]	16	use DBI;
[66]	17	use Net::SMTP;
[68]	18	use POSIX;
[4]	19	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
	20
[77]	21	$VERSION = 2.0;
[4]	22	@ISA = qw(Exporter);
[106]	23	@EXPORT_OK = qw(
[167]	24	%disp_alloctypes %list_alloctypes %def_custids @citylist @poplist @masterblocks
[233]	25	%allocated %free %routed %bigfree %IPDBacl
[106]	26	&initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock &deleteBlock
	27	&mailNotify
	28	);
[4]	29
	30	@EXPORT = (); # Export nothing by default.
[106]	31	%EXPORT_TAGS = ( ALL => [qw(
[167]	32	%disp_alloctypes %list_alloctypes %def_custids @citylist @poplist
[233]	33	@masterblocks %allocated %free %routed %bigfree %IPDBacl
[106]	34	&initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock
	35	&deleteBlock &mailNotify
	36	)]
	37	);
[4]	38
[77]	39	##
	40	## Global variables
	41	##
	42	our %disp_alloctypes;
	43	our %list_alloctypes;
[167]	44	our %def_custids;
[96]	45	our @citylist;
	46	our @poplist;
[106]	47	our @masterblocks;
[118]	48	our %allocated;
	49	our %free;
	50	our %routed;
	51	our %bigfree;
[233]	52	our %IPDBacl;
[66]	53
[77]	54	# Let's initialize the globals.
	55	## IPDB::initIPDBGlobals()
	56	# Initialize all globals. Takes a database handle, returns a success or error code
	57	sub initIPDBGlobals {
	58	my $dbh = $_[0];
	59	my $sth;
	60
[106]	61	# Initialize alloctypes hashes
[167]	62	$sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
[77]	63	$sth->execute;
	64	while (my @data = $sth->fetchrow_array) {
[106]	65	$disp_alloctypes{$data[0]} = $data[2];
[167]	66	$def_custids{$data[0]} = $data[4];
[106]	67	if ($data[3] < 900) {
	68	$list_alloctypes{$data[0]} = $data[1];
	69	}
[77]	70	}
[96]	71
	72	# City and POP listings
[157]	73	$sth = $dbh->prepare("select city,routing from cities order by city");
[96]	74	$sth->execute;
	75	return (undef,$sth->errstr) if $sth->err;
	76	while (my @data = $sth->fetchrow_array) {
[106]	77	push @citylist, $data[0];
[96]	78	if ($data[1] eq 'y') {
[106]	79	push @poplist, $data[0];
[96]	80	}
	81	}
	82
[106]	83	# Master block list
[157]	84	$sth = $dbh->prepare("select cidr from masterblocks order by cidr");
[106]	85	$sth->execute;
[233]	86	return (undef,$sth->errstr) if $sth->err;
[106]	87	for (my $i=0; my @data = $sth->fetchrow_array(); $i++) {
	88	$masterblocks[$i] = new NetAddr::IP $data[0];
[118]	89	$allocated{"$masterblocks[$i]"} = 0;
	90	$free{"$masterblocks[$i]"} = 0;
	91	$bigfree{"$masterblocks[$i]"} = 128; # Larger number means smaller block.
	92	# Set to 128 to prepare for IPv6
	93	$routed{"$masterblocks[$i]"} = 0;
[106]	94	}
[233]	95
	96	# Load ACL data. Specific username checks are done at a different level.
	97	$sth = $dbh->prepare("select username,acl from users");
	98	$sth->execute;
[106]	99	return (undef,$sth->errstr) if $sth->err;
[233]	100	while (my @data = $sth->fetchrow_array) {
	101	$IPDBacl{$data[0]} = $data[1];
	102	}
[106]	103
[77]	104	return (1,"OK");
	105	} # end initIPDBGlobals
	106
	107
	108	## IPDB::connectDB()
[4]	109	# Creates connection to IPDB.
[77]	110	# Requires the database name, username, and password.
[4]	111	# Returns a handle to the db.
[77]	112	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	113	# right changes.
	114	# This definition should be sub connectDB($$$) to be technically correct,
	115	# but this breaks. GRR.
[4]	116	sub connectDB {
[77]	117	my ($dbname,$user,$pass) = @_;
[4]	118	my $dbh;
[77]	119	my $DSN = "DBI:Pg:dbname=$dbname";
	120	# my $user = 'ipdb';
	121	# my $pw = 'ipdbpwd';
[4]	122
	123	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
[77]	124	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	125	$dbh = DBI->connect($DSN, $user, $pass, {
	126	AutoCommit => 1,
	127	PrintError => 0
	128	})
	129	or return (undef, $DBI::errstr) if(!$dbh);
[4]	130
[77]	131	# Return here if we can't select. Note that this indicates a
	132	# problem executing the select.
[183]	133	my $sth = $dbh->prepare("select type from alloctypes");
[77]	134	$sth->execute();
	135	return (undef,$DBI::errstr) if ($sth->err);
	136
	137	# See if the select returned anything (or null data). This should
	138	# succeed if the select executed, but...
	139	$sth->fetchrow();
	140	return (undef,$DBI::errstr) if ($sth->err);
	141
	142	# If we get here, we should be OK.
	143	return ($dbh,"DB connection OK");
[4]	144	} # end connectDB
	145
[77]	146
	147	## IPDB::finish()
	148	# Cleans up after database handles and so on.
	149	# Requires a database handle
	150	sub finish {
	151	my $dbh = $_[0];
	152	$dbh->disconnect;
	153	} # end finish
	154
	155
[106]	156	## IPDB::checkDBSanity()
[4]	157	# Quick check to see if the db is responding. A full integrity
	158	# check will have to be a separate tool to walk the IP allocation trees.
	159	sub checkDBSanity {
[106]	160	my ($dbh) = $_[0];
[4]	161
	162	if (!$dbh) {
[106]	163	print "No database handle, or connection has been closed.";
	164	return -1;
[4]	165	} else {
	166	# it connects, try a stmt.
[184]	167	my $sth = $dbh->prepare("select type from alloctypes");
[4]	168	my $err = $sth->execute();
	169
	170	if ($sth->fetchrow()) {
	171	# all is well.
	172	return 1;
	173	} else {
[16]	174	print "Connected to the database, but could not execute test statement. ".$sth->errstr();
[106]	175	return -1;
[4]	176	}
	177	}
	178	# Clean up after ourselves.
[106]	179	# $dbh->disconnect;
[4]	180	} # end checkDBSanity
	181
[66]	182
[77]	183	## IPDB::allocateBlock()
[66]	184	# Does all of the magic of actually allocating a netblock
[77]	185	# Requires database handle, block to allocate, custid, type, city,
	186	# description, notes, circuit ID, block to allocate from,
	187	# Returns a success code and optional error message.
	188	sub allocateBlock {
	189	my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid) = @_;
	190
	191	my $cidr = new NetAddr::IP $_[1];
	192	my $alloc_from = new NetAddr::IP $_[2];
	193	my $sth;
[66]	194
[79]	195	# To contain the error message, if any.
	196	my $msg = "Unknown error allocating $cidr as '$type'";
	197
[77]	198	# Enable transactions and error handling
	199	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	200	local $dbh->{RaiseError} = 1; # step on our toes by accident.
[66]	201
[157]	202	if ($type =~ /^.i$/) {
[79]	203	$msg = "Unable to assign static IP $cidr to $custid";
[77]	204	eval {
[157]	205	# We have to do this in two parts because otherwise we lose
	206	# the ability to return the IP assigned. Should that change,
	207	# the commented SQL statement below may become usable.
[77]	208	# update poolips set custid='$custid',city='$city',available='n',
	209	# description='$desc',notes='$notes',circuitid='$circid'
	210	# where ip=(select ip from poolips where pool='$alloc_from'
	211	# and available='y' order by ip limit 1);
[157]	212
	213	$sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
	214	" and available='y' order by ip");
	215	$sth->execute;
	216
[77]	217	my @data = $sth->fetchrow_array;
[157]	218	$cidr = $data[0]; # $cidr is already declared when we get here!
[77]	219
	220	$sth = $dbh->prepare("update poolips set custid='$custid',".
[108]	221	"city='$city',available='n',description='$desc',notes='$notes',".
[77]	222	"circuitid='$circid'".
	223	" where ip='$cidr'");
	224	$sth->execute;
[79]	225	$dbh->commit;
[77]	226	};
	227	if ($@) {
[107]	228	$msg .= ": '".$sth->errstr."'";
[78]	229	eval { $dbh->rollback; };
	230	return ('FAIL',$msg);
[77]	231	} else {
[106]	232	return ('OK',"$cidr");
[77]	233	}
	234
	235	} else { # end IP-from-pool allocation
	236
	237	if ($cidr == $alloc_from) {
	238	# Easiest case- insert in one table, delete in the other, and go home. More or less.
	239	# insert into allocations values (cidr,custid,type,city,desc) and
	240	# delete from freeblocks where cidr='cidr'
	241	# For data safety on non-transaction DBs, we delete first.
	242
	243	eval {
[79]	244	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
[187]	245	if ($type eq 'rm') {
[77]	246	$sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
	247	" where cidr='$cidr'");
	248	$sth->execute;
[157]	249	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	250	" values ('$cidr',".$cidr->masklen.",'$city')");
[77]	251	$sth->execute;
	252	} else {
	253	# common stuff for end-use, dialup, dynDSL, pools, etc, etc.
	254
[187]	255	# special case - block is a container/"reserve" block
	256	if ($type =~ /^(.)c$/) {
	257	$sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
[186]	258	$sth->execute;
	259	} else {
	260	# "normal" case
	261	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	262	$sth->execute;
	263	}
[157]	264	$sth = $dbh->prepare("insert into allocations".
	265	" (cidr,custid,type,city,description,notes,maskbits,circuitid)".
	266	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
[77]	267	$cidr->masklen.",'$circid')");
	268	$sth->execute;
[78]	269
	270	# And initialize the pool, if necessary
[157]	271	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	272	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[78]	273	if ($type =~ /^.p$/) {
[157]	274	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	275	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	276	die $rmsg if $code eq 'FAIL';
	277	} elsif ($type =~ /^.d$/) {
	278	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	279	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	280	die $rmsg if $code eq 'FAIL';
[79]	281	}
	282
[77]	283	} # routing vs non-routing netblock
[79]	284
[77]	285	$dbh->commit;
[78]	286	}; # end of eval
[77]	287	if ($@) {
[157]	288	$msg .= ": ".$@;
[77]	289	eval { $dbh->rollback; };
[157]	290	return ('FAIL',$msg);
[77]	291	} else {
[78]	292	return ('OK',"OK");
	293	}
[77]	294
	295	} else { # cidr != alloc_from
	296
	297	# Hard case. Allocation is smaller than free block.
	298	my $wantmaskbits = $cidr->masklen;
	299	my $maskbits = $alloc_from->masklen;
	300
	301	my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
	302
	303	# This determines which blocks will be left "free" after allocation. We take the
	304	# block we're allocating from, and split it in half. We see which half the wanted
	305	# block is in, and repeat until the wanted block is equal to one of the halves.
	306	my $i=0;
	307	my $tmp_from = $alloc_from; # So we don't munge $alloc_from
	308	while ($maskbits++ < $wantmaskbits) {
	309	my @subblocks = $tmp_from->split($maskbits);
	310	$newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
	311	$tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
	312	} # while
	313
	314	# Begin SQL transaction block
	315	eval {
[79]	316	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
	317
[77]	318	# Delete old freeblocks entry
	319	$sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
	320	$sth->execute();
	321
	322	# now we have to do some magic for routing blocks
[187]	323	if ($type eq 'rm') {
[79]	324
[77]	325	# Insert the new freeblocks entries
	326	# Note that non-routed blocks are assigned to <NULL>
[157]	327	# and use the default value for the routed column ('n')
	328	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	329	" values (?, ?, '<NULL>')");
[77]	330	foreach my $block (@newfreeblocks) {
	331	$sth->execute("$block", $block->masklen);
	332	}
[79]	333
[77]	334	# Insert the entry in the routed table
[157]	335	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	336	" values ('$cidr',".$cidr->masklen.",'$city')");
[77]	337	$sth->execute;
	338	# Insert the (almost) same entry in the freeblocks table
[157]	339	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	340	" values ('$cidr',".$cidr->masklen.",'$city','y')");
[77]	341	$sth->execute;
	342
[189]	343	} else { # done with alloctype == rm
[77]	344
	345	# Insert the new freeblocks entries
[186]	346	# Along with some more HairyPerl(TM) in case we're inserting a
[187]	347	# subblock (.r) allocation
[157]	348	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
[186]	349	" values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
[189]	350	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[77]	351	foreach my $block (@newfreeblocks) {
	352	$sth->execute("$block", $block->masklen);
	353	}
[187]	354	# Special-case for reserve/"container" blocks - generate
	355	# the "extra" freeblocks entry for the container
	356	if ($type =~ /^(.)c$/) {
[186]	357	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
[187]	358	" values ('$cidr',".$cidr->masklen.",'$city','$1')");
[186]	359	$sth->execute;
	360	}
[77]	361	# Insert the allocations entry
[157]	362	$sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
	363	"description,notes,maskbits,circuitid)".
	364	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
	365	$cidr->masklen.",'$circid')");
[77]	366	$sth->execute;
[78]	367
	368	# And initialize the pool, if necessary
[157]	369	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	370	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[78]	371	if ($type =~ /^.p$/) {
[79]	372	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
[157]	373	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	374	die $rmsg if $code eq 'FAIL';
	375	} elsif ($type =~ /^.d$/) {
	376	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	377	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	378	die $rmsg if $code eq 'FAIL';
[79]	379	}
	380
[189]	381	} # done with netblock alloctype != rm
[79]	382
[77]	383	$dbh->commit;
	384	}; # end eval
	385	if ($@) {
	386	eval { $dbh->rollback; };
[78]	387	return ('FAIL',$msg);
[77]	388	} else {
[78]	389	return ('OK',"OK");
[77]	390	}
	391
	392	} # end fullcidr != alloc_from
	393
	394	} # end static-IP vs netblock allocation
	395
	396	} # end allocateBlock()
	397
	398
	399	## IPDB::initPool()
	400	# Initializes a pool
	401	# Requires a database handle, the pool CIDR, type, city, and a parameter
	402	# indicating whether the pool should allow allocation of literally every
	403	# IP, or if it should reserve network/gateway/broadcast IPs
[78]	404	# Note that this is NOT done in a transaction, that's why it's a private
	405	# function and should ONLY EVER get called from allocateBlock()
[77]	406	sub initPool {
	407	my ($dbh,undef,$type,$city,$class) = @_;
	408	my $pool = new NetAddr::IP $_[1];
	409
[157]	410	##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
	411	$type =~ s/[pd]$/i/;
[77]	412	my $sth;
[157]	413	my $msg;
[77]	414
[157]	415	# Trap errors so we can pass them back to the caller. Even if the
	416	# caller is only ever supposed to be local, and therefore already
	417	# trapping errors. >:(
	418	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	419	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	420
	421	eval {
	422	# have to insert all pool IPs into poolips table as "unallocated".
	423	$sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
	424	" values ('$pool', ?, '6750400', '$city', '$type')");
	425	my @poolip_list = $pool->hostenum;
	426	if ($class eq 'all') { # (DSL-ish block - all IPs available
	427	$sth->execute($pool->addr);
	428	for (my $i=0; $i<=$#poolip_list; $i++) {
	429	$sth->execute($poolip_list[$i]->addr);
	430	}
	431	$pool--;
	432	$sth->execute($pool->addr);
	433	} else { # (real netblock)
	434	for (my $i=1; $i<=$#poolip_list; $i++) {
	435	$sth->execute($poolip_list[$i]->addr);
	436	}
[77]	437	}
[157]	438	};
	439	if ($@) {
	440	$msg = "'".$sth->errstr."'";
	441	eval { $dbh->rollback; };
	442	return ('FAIL',$msg);
	443	} else {
	444	return ('OK',"OK");
[77]	445	}
	446	} # end initPool()
	447
	448
[93]	449	## IPDB::deleteBlock()
	450	# Removes an allocation from the database, including deleting IPs
	451	# from poolips and recombining entries in freeblocks if possible
	452	# Also handles "deleting" a static IP allocation, and removal of a master
	453	# Requires a database handle, the block to delete, and the type of block
	454	sub deleteBlock {
	455	my ($dbh,undef,$type) = @_;
	456	my $cidr = new NetAddr::IP $_[1];
	457
	458	my $sth;
	459
	460	# To contain the error message, if any.
	461	my $msg = "Unknown error deallocating $type $cidr";
	462	# Enable transactions and exception-on-errors... but only for this sub
	463	local $dbh->{AutoCommit} = 0;
	464	local $dbh->{RaiseError} = 1;
	465
	466	# First case. The "block" is a static IP
	467	# Note that we still need some additional code in the odd case
	468	# of a netblock-aligned contiguous group of static IPs
	469	if ($type =~ /^.i$/) {
	470
	471	eval {
[157]	472	$msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
[93]	473	$sth = $dbh->prepare("update poolips set custid='6750400',available='y',".
[120]	474	"city=(select city from allocations where cidr >>= '$cidr'),".
[93]	475	"description='',notes='',circuitid='' where ip='$cidr'");
	476	$sth->execute;
	477	$dbh->commit;
	478	};
	479	if ($@) {
	480	eval { $dbh->rollback; };
	481	return ('FAIL',$msg);
	482	} else {
	483	return ('OK',"OK");
	484	}
	485
	486	} elsif ($type eq 'mm') { # end alloctype =~ /.i/
	487
	488	$msg = "Unable to delete master block $cidr";
	489	eval {
	490	$sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
	491	$sth->execute;
	492	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	493	$sth->execute;
	494	$dbh->commit;
	495	};
	496	if ($@) {
	497	eval { $dbh->rollback; };
	498	return ('FAIL', $msg);
	499	} else {
	500	return ('OK',"OK");
	501	}
	502
	503	} else { # end alloctype master block case
	504
	505	## This is a big block; but it HAS to be done in a chunk. Any removal
	506	## of a netblock allocation may result in a larger chunk of free
	507	## contiguous IP space - which may in turn be combined into a single
	508	## netblock rather than a number of smaller netblocks.
	509
	510	eval {
	511
[187]	512	if ($type eq 'rm') {
[93]	513	$msg = "Unable to remove routing allocation $cidr";
	514	$sth = $dbh->prepare("delete from routed where cidr='$cidr'");
	515	$sth->execute;
	516	# Make sure block getting deleted is properly accounted for.
	517	$sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
	518	" where cidr='$cidr'");
	519	$sth->execute;
	520	# Set up query to start compacting free blocks.
[157]	521	$sth = $dbh->prepare("select cidr from freeblocks where ".
[93]	522	"maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
	523
	524	} else { # end alloctype routing case
	525
[186]	526	# Delete all allocations within the block being deleted. This is
	527	# deliberate and correct, and removes the need to special-case
	528	# removal of "container" blocks.
	529	$sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
[93]	530	$sth->execute;
[186]	531
[93]	532	# Special case - delete pool IPs
[157]	533	if ($type =~ /^.[pd]$/) {
[93]	534	# We have to delete the IPs from the pool listing.
	535	$sth = $dbh->prepare("delete from poolips where pool='$cidr'");
	536	$sth->execute;
	537	}
	538
	539	# Set up query for compacting free blocks.
[157]	540	$sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
[120]	541	"(select cidr from routed where cidr >>= '$cidr') ".
[186]	542	" and maskbits<=".$cidr->masklen.
[187]	543	" and routed='".(($type =~ /^(.)r$/) ? '$1' : 'y').
[186]	544	"' order by maskbits desc");
[93]	545
	546	} # end alloctype general case
	547
	548	# Now we look for larger-or-equal-sized free blocks in the same master (routed)
	549	# (super)block. If there aren't any, we can't combine blocks anyway. If there
	550	# are, we check to see if we can combine blocks.
	551	# Execute the statement prepared in the if-else above.
	552
	553	$sth->execute;
	554
	555	# NetAddr::IP->compact() attempts to produce the smallest inclusive block
	556	# from the caller and the passed terms.
	557	# EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
	558	# and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
	559	# .64-.95, and .96-.128), you will get an array containing a single
	560	# /25 as element 0 (.0-.127). Order is not important; you could have
	561	# $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
	562
	563	my (@together, @combinelist);
	564	my $i=0;
	565	while (my @data = $sth->fetchrow_array) {
	566	my $testIP = new NetAddr::IP $data[0];
	567	@together = $testIP->compact($cidr);
	568	my $num = @together;
	569	if ($num == 1) {
	570	$cidr = $together[0];
	571	$combinelist[$i++] = $testIP;
	572	}
	573	}
	574
[186]	575	# Clear old freeblocks entries - if any. They should all be within
	576	# the $cidr determined above.
	577	$sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
	578	$sth->execute;
[93]	579
	580	# insert "new" freeblocks entry
[187]	581	if ($type eq 'rm') {
[157]	582	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	583	" values ('$cidr',".$cidr->masklen.",'<NULL>')");
[93]	584	} else {
[157]	585	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	586	" values ('$cidr',".$cidr->masklen.
[186]	587	",(select city from routed where cidr >>= '$cidr'),'".
[189]	588	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[93]	589	}
	590	$sth->execute;
	591
	592	# If we got here, we've succeeded. Whew!
	593	$dbh->commit;
	594	}; # end eval
	595	if ($@) {
	596	eval { $dbh->rollback; };
	597	return ('FAIL', $msg);
	598	} else {
	599	return ('OK',"OK");
	600	}
	601
	602	} # end alloctype != netblock
	603
	604	} # end deleteBlock()
	605
	606
[77]	607	## IPDB::mailNotify()
[66]	608	# Sends notification mail to recipients regarding an IPDB operation
	609	sub mailNotify ($$$) {
	610	my ($recip,$subj,$message) = @_;
[69]	611	my $mailer = Net::SMTP->new("smtp.example.com", Hello => "ipdb.example.com");
[66]	612
	613	$mailer->mail('ipdb@example.com');
	614	$mailer->to($recip);
[69]	615	$mailer->data("From: \"IP Database\" <ipdb\@example.com>\n",
[135]	616	"To: $recip\n",
[69]	617	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
	618	"Subject: {IPDB} $subj\n",
	619	"X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
	620	"Organization: Example Corp\n",
	621	"\n$message\n");
[66]	622	$mailer->quit;
	623	}
	624
[4]	625	# Indicates module loaded OK. Required by Perl.
	626	1;

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