522 lines
21 KiB
Perl
522 lines
21 KiB
Perl
#!/usr/bin/perl -wT
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#
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# ==========================================================================
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#
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# ZoneMinder Audit Script, $Date$, $Revision$
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# Copyright (C) 2001-2008 Philip Coombes
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ==========================================================================
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#
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# This script checks for consistency between the event filesystem and
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# the database. If events are found in one and not the other they are
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# deleted (optionally). Additionally any monitor event directories that
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# do not correspond to a database monitor are similarly disposed of.
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# However monitors in the database that don't have a directory are left
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# alone as this is valid if they are newly created and have no events
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# yet.
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#
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use strict;
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use bytes;
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# ==========================================================================
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#
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# These are the elements you can edit to suit your installation
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#
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# ==========================================================================
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use constant MIN_AGE => 300; # Minimum age when we will delete anything
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use constant MAX_AGED_DIRS => 10; # Number of event dirs to check age on
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use constant RECOVER_TAG => "(r)"; # Tag to append to event name when recovered
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use constant RECOVER_TEXT => "Recovered."; # Text to append to event notes when recovered
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# ==========================================================================
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#
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# You shouldn't need to change anything from here downwards
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#
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# ==========================================================================
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@EXTRA_PERL_LIB@
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use ZoneMinder;
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use DBI;
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use POSIX;
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use File::Find;
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use Time::HiRes qw/gettimeofday/;
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use Getopt::Long;
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use constant IMAGE_PATH => $Config{ZM_PATH_WEB}.'/'.$Config{ZM_DIR_IMAGES};
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use constant EVENT_PATH => ($Config{ZM_DIR_EVENTS}=~m|/|)?$Config{ZM_DIR_EVENTS}:($Config{ZM_PATH_WEB}.'/'.$Config{ZM_DIR_EVENTS});
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$| = 1;
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$ENV{PATH} = '/bin:/usr/bin';
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$ENV{SHELL} = '/bin/sh' if exists $ENV{SHELL};
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delete @ENV{qw(IFS CDPATH ENV BASH_ENV)};
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my $report = 0;
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my $interactive = 0;
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my $continuous = 0;
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sub usage
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{
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print( "
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Usage: zmaudit.pl [-r,-report|-i,-interactive]
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Parameters are :-
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-r, --report - Just report don't actually do anything
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-i, --interactive - Ask before applying any changes
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-c, --continuous - Run continuously
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");
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exit( -1 );
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}
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sub aud_print( $ );
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sub confirm( ;$$ );
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sub deleteSwapImage();
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logInit();
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logSetSignal();
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if ( !GetOptions( 'report'=>\$report, 'interactive'=>\$interactive, 'continuous'=>\$continuous ) )
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{
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usage();
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}
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if ( ($report + $interactive + $continuous) > 1 )
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{
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print( STDERR "Error, only option may be specified\n" );
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usage();
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}
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my $dbh = zmDbConnect();
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chdir( EVENT_PATH );
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my $max_image_age = 6/24; # 6 hours
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my $max_swap_age = 24/24; # 24 hours
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my $image_path = IMAGE_PATH;
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my $swap_image_path = $Config{ZM_PATH_SWAP};
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my $loop = 1;
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my $cleaned = 0;
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MAIN: while( $loop ) {
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while ( ! ( $dbh and $dbh->ping() ) ) {
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$dbh = zmDbConnect();
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last if $dbh;
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if ( $continuous ) {
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# if we are running continuously, then just skip to the next interval, otherwise we are a one off run, so wait a second and retry until someone kills us.
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sleep( $Config{ZM_AUDIT_CHECK_INTERVAL} );
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} else {
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sleep 1;
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} # end if
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} # end while can't connect to the db
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my $db_monitors;
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my $monitorSelectSql = "select Id from Monitors order by Id";
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my $monitorSelectSth = $dbh->prepare_cached( $monitorSelectSql ) or Fatal( "Can't prepare '$monitorSelectSql': ".$dbh->errstr() );
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my $eventSelectSql = "select Id, (unix_timestamp() - unix_timestamp(StartTime)) as Age from Events where MonitorId = ? order by Id";
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my $eventSelectSth = $dbh->prepare_cached( $eventSelectSql ) or Fatal( "Can't prepare '$eventSelectSql': ".$dbh->errstr() );
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$cleaned = 0;
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my $res = $monitorSelectSth->execute() or Fatal( "Can't execute: ".$monitorSelectSth->errstr() );
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while( my $monitor = $monitorSelectSth->fetchrow_hashref() )
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{
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Debug( "Found database monitor '$monitor->{Id}'" );
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my $db_events = $db_monitors->{$monitor->{Id}} = {};
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my $res = $eventSelectSth->execute( $monitor->{Id} ) or Fatal( "Can't execute: ".$eventSelectSth->errstr() );
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while ( my $event = $eventSelectSth->fetchrow_hashref() )
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{
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$db_events->{$event->{Id}} = $event->{Age};
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}
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Debug( "Got ".int(keys(%$db_events))." events\n" );
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$eventSelectSth->finish();
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}
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$monitorSelectSth->finish();
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my $fs_monitors;
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foreach my $monitor ( <[0-9]*> )
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{
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Debug( "Found filesystem monitor '$monitor'" );
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my $fs_events = $fs_monitors->{$monitor} = {};
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( my $monitor_dir ) = ( $monitor =~ /^(.*)$/ ); # De-taint
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if ( $Config{ZM_USE_DEEP_STORAGE} )
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{
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foreach my $day_dir ( <$monitor_dir/*/*/*> )
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{
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Debug( "Checking $day_dir" );
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( $day_dir ) = ( $day_dir =~ /^(.*)$/ ); # De-taint
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chdir( $day_dir );
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opendir( DIR, "." ) or Fatal( "Can't open directory '$day_dir': $!" );
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my @event_links = sort { $b <=> $a } grep { -l $_ } readdir( DIR );
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closedir( DIR );
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my $count = 0;
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foreach my $event_link ( @event_links )
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{
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Debug( "Checking link $event_link" );
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( my $event = $event_link ) =~ s/^.*\.//;
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my $event_path = readlink( $event_link );
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if ( $count++ > MAX_AGED_DIRS )
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{
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$fs_events->{$event} = -1;
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}
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else
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{
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if ( !-e $event_path )
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{
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aud_print( "Event link $day_dir/$event_link does not point to valid target" );
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if ( confirm() )
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{
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( $event_link ) = ( $event_link =~ /^(.*)$/ ); # De-taint
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unlink( $event_link );
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$cleaned = 1;
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}
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}
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else
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{
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$fs_events->{$event} = (time() - ($^T - ((-M $event_path) * 24*60*60)));
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}
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}
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}
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chdir( EVENT_PATH );
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}
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}
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else
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{
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chdir( $monitor_dir );
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opendir( DIR, "." ) or Fatal( "Can't open directory '$monitor_dir': $!" );
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my @temp_events = sort { $b <=> $a } grep { -d $_ && $_ =~ /^\d+$/ } readdir( DIR );
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closedir( DIR );
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my $count = 0;
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foreach my $event ( @temp_events )
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{
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if ( $count++ > MAX_AGED_DIRS )
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{
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$fs_events->{$event} = -1;
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}
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else
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{
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$fs_events->{$event} = (time() - ($^T - ((-M $event) * 24*60*60)));
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}
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}
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chdir( EVENT_PATH );
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}
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Debug( "Got ".int(keys(%$fs_events))." events\n" );
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}
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redo MAIN if ( $cleaned );
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$cleaned = 0;
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while ( my ( $fs_monitor, $fs_events ) = each(%$fs_monitors) )
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{
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if ( my $db_events = $db_monitors->{$fs_monitor} )
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{
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if ( $fs_events )
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{
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while ( my ( $fs_event, $age ) = each(%$fs_events ) )
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{
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if ( !defined($db_events->{$fs_event}) && ($age < 0 || ($age > MIN_AGE)) )
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{
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aud_print( "Filesystem event '$fs_monitor/$fs_event' does not exist in database" );
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if ( confirm() )
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{
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deleteEventFiles( $fs_event, $fs_monitor );
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$cleaned = 1;
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}
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}
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}
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}
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}
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else
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{
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aud_print( "Filesystem monitor '$fs_monitor' does not exist in database" );
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if ( confirm() )
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{
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my $command = "rm -rf $fs_monitor";
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executeShellCommand( $command );
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$cleaned = 1;
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}
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}
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}
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my $monitor_links;
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foreach my $link ( <*> )
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{
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next if ( !-l $link );
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next if ( -e $link );
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aud_print( "Filesystem monitor link '$link' does not point to valid monitor directory" );
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if ( confirm() )
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{
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( $link ) = ( $link =~ /^(.*)$/ ); # De-taint
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my $command = "rm $link";
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executeShellCommand( $command );
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$cleaned = 1;
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}
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}
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redo MAIN if ( $cleaned );
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$cleaned = 0;
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my $deleteMonitorSql = "delete low_priority from Monitors where Id = ?";
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my $deleteMonitorSth = $dbh->prepare_cached( $deleteMonitorSql ) or Fatal( "Can't prepare '$deleteMonitorSql': ".$dbh->errstr() );
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my $deleteEventSql = "delete low_priority from Events where Id = ?";
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my $deleteEventSth = $dbh->prepare_cached( $deleteEventSql ) or Fatal( "Can't prepare '$deleteEventSql': ".$dbh->errstr() );
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my $deleteFramesSql = "delete low_priority from Frames where EventId = ?";
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my $deleteFramesSth = $dbh->prepare_cached( $deleteFramesSql ) or Fatal( "Can't prepare '$deleteFramesSql': ".$dbh->errstr() );
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my $deleteStatsSql = "delete low_priority from Stats where EventId = ?";
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my $deleteStatsSth = $dbh->prepare_cached( $deleteStatsSql ) or Fatal( "Can't prepare '$deleteStatsSql': ".$dbh->errstr() );
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while ( my ( $db_monitor, $db_events ) = each(%$db_monitors) )
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{
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if ( my $fs_events = $fs_monitors->{$db_monitor} )
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{
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if ( $db_events )
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{
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while ( my ( $db_event, $age ) = each(%$db_events ) )
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{
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if ( !defined($fs_events->{$db_event}) && ($age > MIN_AGE) )
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{
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aud_print( "Database event '$db_monitor/$db_event' does not exist in filesystem" );
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if ( confirm() )
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{
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my $res = $deleteEventSth->execute( $db_event ) or Fatal( "Can't execute: ".$deleteEventSth->errstr() );
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$res = $deleteFramesSth->execute( $db_event ) or Fatal( "Can't execute: ".$deleteFramesSth->errstr() );
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$res = $deleteStatsSth->execute( $db_event ) or Fatal( "Can't execute: ".$deleteStatsSth->errstr() );
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$cleaned = 1;
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}
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}
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}
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}
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}
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else
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{
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#aud_print( "Database monitor '$db_monitor' does not exist in filesystem" );
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#if ( confirm() )
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#{
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# We don't actually do this in case it's new
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#my $res = $deleteMonitorSth->execute( $db_monitor ) or Fatal( "Can't execute: ".$deleteMonitorSth->errstr() );
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#$cleaned = 1;
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#}
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}
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}
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redo MAIN if ( $cleaned );
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# Remove orphaned events (with no monitor)
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$cleaned = 0;
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my $selectOrphanedEventsSql = "select Events.Id, Events.Name from Events left join Monitors on (Events.MonitorId = Monitors.Id) where isnull(Monitors.Id)";
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my $selectOrphanedEventsSth = $dbh->prepare_cached( $selectOrphanedEventsSql ) or Fatal( "Can't prepare '$selectOrphanedEventsSql': ".$dbh->errstr() );
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$res = $selectOrphanedEventsSth->execute() or Fatal( "Can't execute: ".$selectOrphanedEventsSth->errstr() );
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while( my $event = $selectOrphanedEventsSth->fetchrow_hashref() )
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{
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aud_print( "Found orphaned event with no monitor '$event->{Id}'" );
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if ( confirm() )
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{
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$res = $deleteEventSth->execute( $event->{Id} ) or Fatal( "Can't execute: ".$deleteEventSth->errstr() );
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$cleaned = 1;
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}
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}
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$selectOrphanedEventsSth->finish();
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redo MAIN if ( $cleaned );
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# Remove empty events (with no frames)
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$cleaned = 0;
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my $selectEmptyEventsSql = "select * from Events as E left join Frames as F on (E.Id = F.EventId) where isnull(F.EventId) and now() - interval ".MIN_AGE." second > E.StartTime";
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my $selectEmptyEventsSth = $dbh->prepare_cached( $selectEmptyEventsSql ) or Fatal( "Can't prepare '$selectEmptyEventsSql': ".$dbh->errstr() );
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$res = $selectEmptyEventsSth->execute() or Fatal( "Can't execute: ".$selectEmptyEventsSth->errstr() );
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while( my $event = $selectEmptyEventsSth->fetchrow_hashref() )
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{
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aud_print( "Found empty event with no frame records '$event->{Id}'" );
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if ( confirm() )
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{
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$res = $deleteEventSth->execute( $event->{Id} ) or Fatal( "Can't execute: ".$deleteEventSth->errstr() );
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$cleaned = 1;
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}
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}
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$selectEmptyEventsSth->finish();
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redo MAIN if ( $cleaned );
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# Remove orphaned frame records
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$cleaned = 0;
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my $selectOrphanedFramesSql = "select distinct EventId from Frames where EventId not in (select Id from Events)";
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my $selectOrphanedFramesSth = $dbh->prepare_cached( $selectOrphanedFramesSql ) or Fatal( "Can't prepare '$selectOrphanedFramesSql': ".$dbh->errstr() );
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$res = $selectOrphanedFramesSth->execute() or Fatal( "Can't execute: ".$selectOrphanedFramesSth->errstr() );
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while( my $frame = $selectOrphanedFramesSth->fetchrow_hashref() )
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{
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aud_print( "Found orphaned frame records for event '$frame->{EventId}'" );
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if ( confirm() )
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{
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$res = $deleteFramesSth->execute( $frame->{EventId} ) or Fatal( "Can't execute: ".$deleteFramesSth->errstr() );
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$cleaned = 1;
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}
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}
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$selectOrphanedFramesSth->finish();
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redo MAIN if ( $cleaned );
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# Remove orphaned stats records
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$cleaned = 0;
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my $selectOrphanedStatsSql = "select distinct EventId from Stats where EventId not in (select Id from Events)";
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my $selectOrphanedStatsSth = $dbh->prepare_cached( $selectOrphanedStatsSql ) or Fatal( "Can't prepare '$selectOrphanedStatsSql': ".$dbh->errstr() );
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$res = $selectOrphanedStatsSth->execute() or Fatal( "Can't execute: ".$selectOrphanedStatsSth->errstr() );
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while( my $stat = $selectOrphanedStatsSth->fetchrow_hashref() )
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{
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aud_print( "Found orphaned statistic records for event '$stat->{EventId}'" );
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if ( confirm() )
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{
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$res = $deleteStatsSth->execute( $stat->{EventId} ) or Fatal( "Can't execute: ".$deleteStatsSth->errstr() );
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$cleaned = 1;
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}
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}
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$selectOrphanedStatsSth->finish();
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redo MAIN if ( $cleaned );
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# New audit to close any events that were left open for longer than MIN_AGE seconds
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my $selectUnclosedEventsSql = "select E.Id, max(F.TimeStamp) as EndTime, unix_timestamp(max(F.TimeStamp)) - unix_timestamp(E.StartTime) as Length, max(F.FrameId) as Frames, count(if(F.Score>0,1,NULL)) as AlarmFrames, sum(F.Score) as TotScore, max(F.Score) as MaxScore, M.EventPrefix as Prefix from Events as E left join Monitors as M on E.MonitorId = M.Id inner join Frames as F on E.Id = F.EventId where isnull(E.Frames) or isnull(E.EndTime) group by E.Id having EndTime < (now() - interval ".MIN_AGE." second)";
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my $selectUnclosedEventsSth = $dbh->prepare_cached( $selectUnclosedEventsSql ) or Fatal( "Can't prepare '$selectUnclosedEventsSql': ".$dbh->errstr() );
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my $updateUnclosedEventsSql = "update low_priority Events set Name = ?, EndTime = ?, Length = ?, Frames = ?, AlarmFrames = ?, TotScore = ?, AvgScore = ?, MaxScore = ?, Notes = concat_ws( ' ', Notes, ? ) where Id = ?";
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my $updateUnclosedEventsSth = $dbh->prepare_cached( $updateUnclosedEventsSql ) or Fatal( "Can't prepare '$updateUnclosedEventsSql': ".$dbh->errstr() );
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$res = $selectUnclosedEventsSth->execute() or Fatal( "Can't execute: ".$selectUnclosedEventsSth->errstr() );
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while( my $event = $selectUnclosedEventsSth->fetchrow_hashref() )
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{
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aud_print( "Found open event '$event->{Id}'" );
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if ( confirm( 'close', 'closing' ) )
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{
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$res = $updateUnclosedEventsSth->execute( sprintf( "%s%d%s", $event->{Prefix}, $event->{Id}, RECOVER_TAG ), $event->{EndTime}, $event->{Length}, $event->{Frames}, $event->{AlarmFrames}, $event->{TotScore}, $event->{AlarmFrames}?int($event->{TotScore}/$event->{AlarmFrames}):0, $event->{MaxScore}, RECOVER_TEXT, $event->{Id} ) or Fatal( "Can't execute: ".$updateUnclosedEventsSth->errstr() );
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}
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}
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$selectUnclosedEventsSth->finish();
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# Now delete any old image files
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if ( my @old_files = grep { -M > $max_image_age } <$image_path/*.{jpg,gif,wbmp}> )
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{
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aud_print( "Deleting ".int(@old_files)." old images\n" );
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my $untainted_old_files = join( ";", @old_files );
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( $untainted_old_files ) = ( $untainted_old_files =~ /^(.*)$/ );
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unlink( split( /;/, $untainted_old_files ) );
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}
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# Now delete any old swap files
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( my $swap_image_root ) = ( $swap_image_path =~ /^(.*)$/ ); # De-taint
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File::Find::find( { wanted=>\&deleteSwapImage, untaint=>1 }, $swap_image_root );
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# Prune the Logs table if required
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if ( $Config{ZM_LOG_DATABASE_LIMIT} )
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{
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if ( $Config{ZM_LOG_DATABASE_LIMIT} =~ /^\d+$/ )
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{
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# Number of rows
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my $selectLogRowCountSql = "select count(*) as Rows from Logs";
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my $selectLogRowCountSth = $dbh->prepare_cached( $selectLogRowCountSql ) or Fatal( "Can't prepare '$selectLogRowCountSql': ".$dbh->errstr() );
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$res = $selectLogRowCountSth->execute() or Fatal( "Can't execute: ".$selectLogRowCountSth->errstr() );
|
|
my $row = $selectLogRowCountSth->fetchrow_hashref();
|
|
my $logRows = $row->{Rows};
|
|
$selectLogRowCountSth->finish();
|
|
if ( $logRows > $Config{ZM_LOG_DATABASE_LIMIT} )
|
|
{
|
|
my $deleteLogByRowsSql = "delete low_priority from Logs order by TimeKey asc limit ?";
|
|
my $deleteLogByRowsSth = $dbh->prepare_cached( $deleteLogByRowsSql ) or Fatal( "Can't prepare '$deleteLogByRowsSql': ".$dbh->errstr() );
|
|
$res = $deleteLogByRowsSth->execute( $logRows - $Config{ZM_LOG_DATABASE_LIMIT} ) or Fatal( "Can't execute: ".$deleteLogByRowsSth->errstr() );
|
|
aud_print( "Deleted ".$deleteLogByRowsSth->rows()." log table entries by count\n" ) if ( $deleteLogByRowsSth->rows() );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
# Time of record
|
|
my $deleteLogByTimeSql = "delete low_priority from Logs where TimeKey < unix_timestamp(now() - interval ".$Config{ZM_LOG_DATABASE_LIMIT}.")";
|
|
my $deleteLogByTimeSth = $dbh->prepare_cached( $deleteLogByTimeSql ) or Fatal( "Can't prepare '$deleteLogByTimeSql': ".$dbh->errstr() );
|
|
$res = $deleteLogByTimeSth->execute() or Fatal( "Can't execute: ".$deleteLogByTimeSth->errstr() );
|
|
aud_print( "Deleted ".$deleteLogByTimeSth->rows()." log table entries by time\n" ) if ( $deleteLogByTimeSth->rows() );
|
|
}
|
|
}
|
|
$loop = $continuous;
|
|
|
|
sleep( $Config{ZM_AUDIT_CHECK_INTERVAL} ) if $continuous;
|
|
};
|
|
|
|
exit( 0 );
|
|
|
|
sub aud_print( $ )
|
|
{
|
|
my $string = shift;
|
|
if ( !$continuous )
|
|
{
|
|
print( $string );
|
|
}
|
|
else
|
|
{
|
|
Info( $string );
|
|
}
|
|
}
|
|
|
|
sub confirm( ;$$ )
|
|
{
|
|
my $prompt = shift || "delete";
|
|
my $action = shift || "deleting";
|
|
|
|
my $yesno = 0;
|
|
if ( $report )
|
|
{
|
|
print( "\n" );
|
|
}
|
|
elsif ( $interactive )
|
|
{
|
|
print( ", $prompt y/n: " );
|
|
my $char = <>;
|
|
chomp( $char );
|
|
if ( $char eq 'q' )
|
|
{
|
|
exit( 0 );
|
|
}
|
|
if ( !$char )
|
|
{
|
|
$char = 'y';
|
|
}
|
|
$yesno = ( $char =~ /[yY]/ );
|
|
}
|
|
else
|
|
{
|
|
if ( !$continuous )
|
|
{
|
|
print( ", $action\n" );
|
|
}
|
|
else
|
|
{
|
|
Info( $action );
|
|
}
|
|
$yesno = 1;
|
|
}
|
|
return( $yesno );
|
|
}
|
|
|
|
sub deleteSwapImage()
|
|
{
|
|
my $file = $_;
|
|
|
|
if ( $file !~ /^zmswap-/ )
|
|
{
|
|
return;
|
|
}
|
|
|
|
# Ignore directories
|
|
if ( -d $file )
|
|
{
|
|
return;
|
|
}
|
|
|
|
if ( -M $file > $max_swap_age )
|
|
{
|
|
Debug( "Deleting $file" );
|
|
#unlink( $file );
|
|
}
|
|
}
|