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source: branches/stable/cgi-bin/IPDB.pm@ 338

Last change on this file since 338 was 337, checked in by Kris Deugau, 19 years ago

/branches/stable

Fix lurking bug-in-waiting where I've reused a DBI statement
handle where I probably shouldn't have.

Property svn:keywords set to Date Rev Author

File size: 22.4 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: 2006-04-19 22:00:47 +0000 (Wed, 19 Apr 2006) $
	6	# SVN revision $Rev: 337 $
	7	# Last update by $Author: kdeugau $
	8	###
[319]	9	# Copyright (C) 2004-2006 - 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
[242]	25	%allocated %free %routed %bigfree %IPDBacl
[125]	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
[242]	33	@masterblocks %allocated %free %routed %bigfree %IPDBacl
[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;
[242]	52	our %IPDBacl;
[71]	53
[125]	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
	61	# Initialize alloctypes hashes
[168]	62	$sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
[125]	63	$sth->execute;
	64	while (my @data = $sth->fetchrow_array) {
	65	$disp_alloctypes{$data[0]} = $data[2];
[168]	66	$def_custids{$data[0]} = $data[4];
[125]	67	if ($data[3] < 900) {
	68	$list_alloctypes{$data[0]} = $data[1];
	69	}
	70	}
	71
	72	# City and POP listings
[159]	73	$sth = $dbh->prepare("select city,routing from cities order by city");
[125]	74	$sth->execute;
	75	return (undef,$sth->errstr) if $sth->err;
	76	while (my @data = $sth->fetchrow_array) {
	77	push @citylist, $data[0];
	78	if ($data[1] eq 'y') {
	79	push @poplist, $data[0];
	80	}
	81	}
	82
	83	# Master block list
[159]	84	$sth = $dbh->prepare("select cidr from masterblocks order by cidr");
[125]	85	$sth->execute;
[242]	86	return (undef,$sth->errstr) if $sth->err;
[125]	87	for (my $i=0; my @data = $sth->fetchrow_array(); $i++) {
	88	$masterblocks[$i] = new NetAddr::IP $data[0];
	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;
	94	}
[242]	95
	96	# Load ACL data. Specific username checks are done at a different level.
	97	$sth = $dbh->prepare("select username,acl from users");
	98	$sth->execute;
[125]	99	return (undef,$sth->errstr) if $sth->err;
[242]	100	while (my @data = $sth->fetchrow_array) {
	101	$IPDBacl{$data[0]} = $data[1];
	102	}
[125]	103
	104	return (1,"OK");
	105	} # end initIPDBGlobals
	106
	107
	108	## IPDB::connectDB()
[4]	109	# Creates connection to IPDB.
[125]	110	# Requires the database name, username, and password.
[4]	111	# Returns a handle to the db.
[125]	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 {
[125]	117	my ($dbname,$user,$pass) = @_;
[4]	118	my $dbh;
[125]	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.
[125]	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
[125]	131	# Return here if we can't select. Note that this indicates a
	132	# problem executing the select.
[185]	133	my $sth = $dbh->prepare("select type from alloctypes");
[125]	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
[125]	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
	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 {
[125]	160	my ($dbh) = $_[0];
[4]	161
	162	if (!$dbh) {
[125]	163	print "No database handle, or connection has been closed.";
	164	return -1;
[4]	165	} else {
	166	# it connects, try a stmt.
[185]	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();
[125]	175	return -1;
[4]	176	}
	177	}
	178	# Clean up after ourselves.
[125]	179	# $dbh->disconnect;
[4]	180	} # end checkDBSanity
	181
[71]	182
[125]	183	## IPDB::allocateBlock()
[71]	184	# Does all of the magic of actually allocating a netblock
[125]	185	# Requires database handle, block to allocate, custid, type, city,
[286]	186	# description, notes, circuit ID, block to allocate from, private data
[125]	187	# Returns a success code and optional error message.
	188	sub allocateBlock {
[286]	189	my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid,$privdata) = @_;
	190
[125]	191	my $cidr = new NetAddr::IP $_[1];
	192	my $alloc_from = new NetAddr::IP $_[2];
	193	my $sth;
[71]	194
[336]	195	# Snag the "type" of the freeblock (alloc_from) "just in case"
	196	$sth = $dbh->prepare("select routed from freeblocks where cidr='$alloc_from'");
	197	$sth->execute;
	198	my ($alloc_from_type) = $sth->fetchrow_array;
	199
[125]	200	# To contain the error message, if any.
	201	my $msg = "Unknown error allocating $cidr as '$type'";
[71]	202
[125]	203	# Enable transactions and error handling
	204	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	205	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	206
[159]	207	if ($type =~ /^.i$/) {
[125]	208	$msg = "Unable to assign static IP $cidr to $custid";
	209	eval {
[159]	210	# We have to do this in two parts because otherwise we lose
	211	# the ability to return the IP assigned. Should that change,
	212	# the commented SQL statement below may become usable.
[125]	213	# update poolips set custid='$custid',city='$city',available='n',
	214	# description='$desc',notes='$notes',circuitid='$circid'
	215	# where ip=(select ip from poolips where pool='$alloc_from'
	216	# and available='y' order by ip limit 1);
[159]	217
	218	$sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
	219	" and available='y' order by ip");
	220	$sth->execute;
	221
[125]	222	my @data = $sth->fetchrow_array;
[159]	223	$cidr = $data[0]; # $cidr is already declared when we get here!
[125]	224
	225	$sth = $dbh->prepare("update poolips set custid='$custid',".
	226	"city='$city',available='n',description='$desc',notes='$notes',".
[286]	227	"circuitid='$circid',privdata='$privdata'".
[125]	228	" where ip='$cidr'");
	229	$sth->execute;
	230	$dbh->commit;
	231	};
	232	if ($@) {
	233	$msg .= ": '".$sth->errstr."'";
	234	eval { $dbh->rollback; };
	235	return ('FAIL',$msg);
	236	} else {
	237	return ('OK',"$cidr");
	238	}
	239
	240	} else { # end IP-from-pool allocation
	241
	242	if ($cidr == $alloc_from) {
	243	# Easiest case- insert in one table, delete in the other, and go home. More or less.
	244	# insert into allocations values (cidr,custid,type,city,desc) and
	245	# delete from freeblocks where cidr='cidr'
	246	# For data safety on non-transaction DBs, we delete first.
	247
	248	eval {
	249	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
[192]	250	if ($type eq 'rm') {
[125]	251	$sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
	252	" where cidr='$cidr'");
	253	$sth->execute;
[159]	254	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	255	" values ('$cidr',".$cidr->masklen.",'$city')");
[125]	256	$sth->execute;
	257	} else {
	258	# common stuff for end-use, dialup, dynDSL, pools, etc, etc.
	259
[192]	260	# special case - block is a container/"reserve" block
	261	if ($type =~ /^(.)c$/) {
	262	$sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
	263	$sth->execute;
	264	} else {
	265	# "normal" case
	266	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	267	$sth->execute;
	268	}
[159]	269	$sth = $dbh->prepare("insert into allocations".
[286]	270	" (cidr,custid,type,city,description,notes,maskbits,circuitid,privdata)".
[159]	271	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
[286]	272	$cidr->masklen.",'$circid','$privdata')");
[125]	273	$sth->execute;
	274
	275	# And initialize the pool, if necessary
[159]	276	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	277	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[125]	278	if ($type =~ /^.p$/) {
[159]	279	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	280	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	281	die $rmsg if $code eq 'FAIL';
	282	} elsif ($type =~ /^.d$/) {
	283	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	284	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	285	die $rmsg if $code eq 'FAIL';
[125]	286	}
	287
	288	} # routing vs non-routing netblock
	289
	290	$dbh->commit;
	291	}; # end of eval
	292	if ($@) {
[159]	293	$msg .= ": ".$@;
[125]	294	eval { $dbh->rollback; };
[159]	295	return ('FAIL',$msg);
[125]	296	} else {
	297	return ('OK',"OK");
	298	}
	299
	300	} else { # cidr != alloc_from
	301
	302	# Hard case. Allocation is smaller than free block.
	303	my $wantmaskbits = $cidr->masklen;
	304	my $maskbits = $alloc_from->masklen;
	305
	306	my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
	307
	308	# This determines which blocks will be left "free" after allocation. We take the
	309	# block we're allocating from, and split it in half. We see which half the wanted
	310	# block is in, and repeat until the wanted block is equal to one of the halves.
	311	my $i=0;
	312	my $tmp_from = $alloc_from; # So we don't munge $alloc_from
	313	while ($maskbits++ < $wantmaskbits) {
	314	my @subblocks = $tmp_from->split($maskbits);
	315	$newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
	316	$tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
	317	} # while
	318
	319	# Begin SQL transaction block
	320	eval {
	321	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
	322
	323	# Delete old freeblocks entry
	324	$sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
	325	$sth->execute();
	326
	327	# now we have to do some magic for routing blocks
[192]	328	if ($type eq 'rm') {
[125]	329
	330	# Insert the new freeblocks entries
	331	# Note that non-routed blocks are assigned to <NULL>
[159]	332	# and use the default value for the routed column ('n')
	333	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	334	" values (?, ?, '<NULL>')");
[125]	335	foreach my $block (@newfreeblocks) {
	336	$sth->execute("$block", $block->masklen);
	337	}
	338
	339	# Insert the entry in the routed table
[159]	340	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	341	" values ('$cidr',".$cidr->masklen.",'$city')");
[125]	342	$sth->execute;
	343	# Insert the (almost) same entry in the freeblocks table
[159]	344	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	345	" values ('$cidr',".$cidr->masklen.",'$city','y')");
[125]	346	$sth->execute;
	347
[192]	348	} else { # done with alloctype == rm
[125]	349
	350	# Insert the new freeblocks entries
[336]	351	# Along with some more HairyPerl(TM):
	352	# if $alloc_type_from is p
	353	# OR
	354	# $type matches /^(.)r$/
	355	# inserted value for routed column should match.
	356	# This solves the case of inserting an arbitrary block into a
	357	# "Reserve-for-routed-DSL" block. Which you really shouldn't
	358	# do in the first place, but anyway...
[159]	359	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
[192]	360	" values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
[336]	361	( ( ($alloc_from_type =~ /^(p)$/) \|\| ($type =~ /^(.)r$/) ) ? "$1" : 'y')."')");
[125]	362	foreach my $block (@newfreeblocks) {
	363	$sth->execute("$block", $block->masklen);
	364	}
[192]	365	# Special-case for reserve/"container" blocks - generate
	366	# the "extra" freeblocks entry for the container
	367	if ($type =~ /^(.)c$/) {
	368	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	369	" values ('$cidr',".$cidr->masklen.",'$city','$1')");
	370	$sth->execute;
	371	}
[125]	372	# Insert the allocations entry
[159]	373	$sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
[286]	374	"description,notes,maskbits,circuitid,privdata)".
[159]	375	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
[286]	376	$cidr->masklen.",'$circid','$privdata')");
[125]	377	$sth->execute;
	378
	379	# And initialize the pool, if necessary
[159]	380	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	381	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[125]	382	if ($type =~ /^.p$/) {
	383	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
[159]	384	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	385	die $rmsg if $code eq 'FAIL';
	386	} elsif ($type =~ /^.d$/) {
	387	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	388	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	389	die $rmsg if $code eq 'FAIL';
[125]	390	}
	391
[192]	392	} # done with netblock alloctype != rm
[125]	393
	394	$dbh->commit;
	395	}; # end eval
	396	if ($@) {
[250]	397	$msg .= ": ".$@;
[125]	398	eval { $dbh->rollback; };
	399	return ('FAIL',$msg);
	400	} else {
	401	return ('OK',"OK");
	402	}
	403
	404	} # end fullcidr != alloc_from
	405
	406	} # end static-IP vs netblock allocation
	407
	408	} # end allocateBlock()
	409
	410
	411	## IPDB::initPool()
	412	# Initializes a pool
	413	# Requires a database handle, the pool CIDR, type, city, and a parameter
	414	# indicating whether the pool should allow allocation of literally every
	415	# IP, or if it should reserve network/gateway/broadcast IPs
	416	# Note that this is NOT done in a transaction, that's why it's a private
	417	# function and should ONLY EVER get called from allocateBlock()
	418	sub initPool {
	419	my ($dbh,undef,$type,$city,$class) = @_;
	420	my $pool = new NetAddr::IP $_[1];
	421
[159]	422	##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
	423	$type =~ s/[pd]$/i/;
[125]	424	my $sth;
[159]	425	my $msg;
[125]	426
[159]	427	# Trap errors so we can pass them back to the caller. Even if the
	428	# caller is only ever supposed to be local, and therefore already
	429	# trapping errors. >:(
	430	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	431	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	432
	433	eval {
	434	# have to insert all pool IPs into poolips table as "unallocated".
	435	$sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
	436	" values ('$pool', ?, '6750400', '$city', '$type')");
	437	my @poolip_list = $pool->hostenum;
	438	if ($class eq 'all') { # (DSL-ish block - all IPs available
[248]	439	if ($pool->addr !~ /\.0$/) { # .0 causes weirdness.
	440	$sth->execute($pool->addr);
	441	}
[159]	442	for (my $i=0; $i<=$#poolip_list; $i++) {
	443	$sth->execute($poolip_list[$i]->addr);
	444	}
	445	$pool--;
[248]	446	if ($pool->addr !~ /\.255$/) { # .255 can cause weirdness.
	447	$sth->execute($pool->addr);
	448	}
[159]	449	} else { # (real netblock)
	450	for (my $i=1; $i<=$#poolip_list; $i++) {
	451	$sth->execute($poolip_list[$i]->addr);
	452	}
[125]	453	}
[159]	454	};
	455	if ($@) {
	456	$msg = "'".$sth->errstr."'";
	457	eval { $dbh->rollback; };
	458	return ('FAIL',$msg);
	459	} else {
	460	return ('OK',"OK");
[125]	461	}
	462	} # end initPool()
	463
	464
	465	## IPDB::deleteBlock()
	466	# Removes an allocation from the database, including deleting IPs
	467	# from poolips and recombining entries in freeblocks if possible
	468	# Also handles "deleting" a static IP allocation, and removal of a master
	469	# Requires a database handle, the block to delete, and the type of block
	470	sub deleteBlock {
	471	my ($dbh,undef,$type) = @_;
	472	my $cidr = new NetAddr::IP $_[1];
	473
	474	my $sth;
	475
[336]	476	# Magic variables used for odd allocation cases.
	477	my $container;
	478	my $con_type;
	479
[125]	480	# To contain the error message, if any.
	481	my $msg = "Unknown error deallocating $type $cidr";
	482	# Enable transactions and exception-on-errors... but only for this sub
	483	local $dbh->{AutoCommit} = 0;
	484	local $dbh->{RaiseError} = 1;
	485
	486	# First case. The "block" is a static IP
	487	# Note that we still need some additional code in the odd case
	488	# of a netblock-aligned contiguous group of static IPs
	489	if ($type =~ /^.i$/) {
	490
	491	eval {
[159]	492	$msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
[125]	493	$sth = $dbh->prepare("update poolips set custid='6750400',available='y',".
	494	"city=(select city from allocations where cidr >>= '$cidr'),".
	495	"description='',notes='',circuitid='' where ip='$cidr'");
	496	$sth->execute;
	497	$dbh->commit;
	498	};
	499	if ($@) {
	500	eval { $dbh->rollback; };
	501	return ('FAIL',$msg);
	502	} else {
	503	return ('OK',"OK");
	504	}
	505
	506	} elsif ($type eq 'mm') { # end alloctype =~ /.i/
	507
	508	$msg = "Unable to delete master block $cidr";
	509	eval {
	510	$sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
	511	$sth->execute;
	512	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	513	$sth->execute;
	514	$dbh->commit;
	515	};
	516	if ($@) {
	517	eval { $dbh->rollback; };
	518	return ('FAIL', $msg);
	519	} else {
	520	return ('OK',"OK");
	521	}
	522
	523	} else { # end alloctype master block case
	524
	525	## This is a big block; but it HAS to be done in a chunk. Any removal
	526	## of a netblock allocation may result in a larger chunk of free
	527	## contiguous IP space - which may in turn be combined into a single
	528	## netblock rather than a number of smaller netblocks.
	529
	530	eval {
	531
[192]	532	if ($type eq 'rm') {
[125]	533	$msg = "Unable to remove routing allocation $cidr";
	534	$sth = $dbh->prepare("delete from routed where cidr='$cidr'");
	535	$sth->execute;
	536	# Make sure block getting deleted is properly accounted for.
	537	$sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
	538	" where cidr='$cidr'");
	539	$sth->execute;
	540	# Set up query to start compacting free blocks.
[159]	541	$sth = $dbh->prepare("select cidr from freeblocks where ".
[125]	542	"maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
	543
	544	} else { # end alloctype routing case
	545
[336]	546	# Magic. We need to get information about the containing block (if any)
	547	# so as to make sure that the freeblocks we insert get the correct "type".
	548	$sth = $dbh->prepare("select cidr,type from allocations where cidr >> '$cidr'");
	549	$sth->execute;
	550	($container, $con_type) = $sth->fetchrow_array;
	551
[192]	552	# Delete all allocations within the block being deleted. This is
	553	# deliberate and correct, and removes the need to special-case
	554	# removal of "container" blocks.
	555	$sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
[125]	556	$sth->execute;
[192]	557
[125]	558	# Special case - delete pool IPs
[159]	559	if ($type =~ /^.[pd]$/) {
[125]	560	# We have to delete the IPs from the pool listing.
	561	$sth = $dbh->prepare("delete from poolips where pool='$cidr'");
	562	$sth->execute;
	563	}
	564
	565	# Set up query for compacting free blocks.
[336]	566	if ($con_type && $con_type eq 'pc') {
	567	# Clean up after "bad" allocations (blocks that are not formally
	568	# contained which have nevertheless been allocated from a container block)
	569	# We want to make certain that the freeblocks are properly "labelled"
	570	$sth = $dbh->prepare("select cidr from freeblocks where cidr <<= '$container'");
	571	} else {
	572	# Standard deallocation.
	573	$sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
[125]	574	"(select cidr from routed where cidr >>= '$cidr') ".
[192]	575	" and maskbits<=".$cidr->masklen.
[304]	576	" and routed='".(($type =~ /^(.)r$/) ? "$1" : 'y').
[192]	577	"' order by maskbits desc");
[336]	578	}
[125]	579
	580	} # end alloctype general case
	581
[126]	582	##TEMP
	583	## Temporary wrapper to "properly" deallocate sIP PPPoE/DSL "netblocks" in 209.91.185.0/24
	584	## Note that we should really general-case this.
	585	my $staticpool = new NetAddr::IP "209.91.185.0/24";
	586	##TEMP
	587	if ($cidr->within($staticpool)) {
	588	##TEMP
	589	# We've already deleted the block, now we have to stuff its IPs into the pool.
[337]	590	my $sth2 = $dbh->prepare("insert into poolips values ('209.91.185.0/24',?,'6750400','Sudbury','di','y','','','')");
	591	$sth2->execute($cidr->addr);
[126]	592	foreach my $ip ($cidr->hostenum) {
[337]	593	$sth2->execute("$ip");
[126]	594	}
	595	$cidr--;
[337]	596	$sth2->execute($cidr->addr);
[126]	597
	598	##TEMP
	599	} else {
	600	##TEMP
	601
[125]	602	# Now we look for larger-or-equal-sized free blocks in the same master (routed)
	603	# (super)block. If there aren't any, we can't combine blocks anyway. If there
	604	# are, we check to see if we can combine blocks.
	605	# Execute the statement prepared in the if-else above.
	606
	607	$sth->execute;
	608
	609	# NetAddr::IP->compact() attempts to produce the smallest inclusive block
	610	# from the caller and the passed terms.
	611	# EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
	612	# and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
	613	# .64-.95, and .96-.128), you will get an array containing a single
	614	# /25 as element 0 (.0-.127). Order is not important; you could have
	615	# $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
	616
	617	my (@together, @combinelist);
	618	my $i=0;
	619	while (my @data = $sth->fetchrow_array) {
	620	my $testIP = new NetAddr::IP $data[0];
	621	@together = $testIP->compact($cidr);
	622	my $num = @together;
	623	if ($num == 1) {
	624	$cidr = $together[0];
	625	$combinelist[$i++] = $testIP;
	626	}
	627	}
	628
[192]	629	# Clear old freeblocks entries - if any. They should all be within
	630	# the $cidr determined above.
	631	$sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
	632	$sth->execute;
[125]	633
	634	# insert "new" freeblocks entry
[192]	635	if ($type eq 'rm') {
[159]	636	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	637	" values ('$cidr',".$cidr->masklen.",'<NULL>')");
[125]	638	} else {
[336]	639	# Magic hackery to insert "correct" data for deallocation of
	640	# non-contained blocks allocated from within a container.
	641	$type = 'pr' if $con_type && $con_type eq 'pc';
	642
[159]	643	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	644	" values ('$cidr',".$cidr->masklen.
[192]	645	",(select city from routed where cidr >>= '$cidr'),'".
	646	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[125]	647	}
	648	$sth->execute;
	649
[126]	650	##TEMP
	651	}
	652	##TEMP
	653
[125]	654	# If we got here, we've succeeded. Whew!
	655	$dbh->commit;
	656	}; # end eval
	657	if ($@) {
	658	eval { $dbh->rollback; };
	659	return ('FAIL', $msg);
	660	} else {
	661	return ('OK',"OK");
	662	}
	663
	664	} # end alloctype != netblock
	665
	666	} # end deleteBlock()
	667
	668
	669	## IPDB::mailNotify()
[71]	670	# Sends notification mail to recipients regarding an IPDB operation
	671	sub mailNotify ($$$) {
	672	my ($recip,$subj,$message) = @_;
	673	my $mailer = Net::SMTP->new("smtp.example.com", Hello => "ipdb.example.com");
	674
	675	$mailer->mail('ipdb@example.com');
	676	$mailer->to($recip);
	677	$mailer->data("From: \"IP Database\" <ipdb\@example.com>\n",
[131]	678	"To: $recip\n",
[71]	679	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
	680	"Subject: {IPDB} $subj\n",
	681	"X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
	682	"Organization: Example Corp\n",
	683	"\n$message\n");
	684	$mailer->quit;
	685	}
	686
[4]	687	# Indicates module loaded OK. Required by Perl.
	688	1;

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