bpfire/html/cgi-bin/logs.cgi/showrequestfromblocklist.dat

#!/usr/bin/perl
# SmoothWall CGIs
#
# This code is distributed under the terms of the GPL
#
# JC HERITIER
# page inspired from the initial firewalllog.dat
#
# Modified for IPFire by Christian Schmidt (www.ipfire.org)

# enable only the following on debugging purpose
#use warnings;
#use CGI::Carp 'fatalsToBrowser';

require '/var/ipfire/general-functions.pl';
require "${General::swroot}/lang.pl";
require "${General::swroot}/header.pl";

use POSIX();

#workaround to suppress a warning when a variable is used only once
my @dummy = ( ${Header::table2colour} );
undef (@dummy);

my %cgiparams=();
my %logsettings=();
my $errormessage = '';

my @shortmonths = ( 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug',
	'Sep', 'Oct', 'Nov', 'Dec' );
my @longmonths = ( $Lang::tr{'january'}, $Lang::tr{'february'}, $Lang::tr{'march'},
	$Lang::tr{'april'}, $Lang::tr{'may'}, $Lang::tr{'june'}, $Lang::tr{'july'}, $Lang::tr{'august'},
	$Lang::tr{'september'}, $Lang::tr{'october'}, $Lang::tr{'november'},
	$Lang::tr{'december'} );

my @now = localtime();
my $dow = $now[6];
my $doy = $now[7];
my $tdoy = $now[7];
my $year = $now[5]+1900;

$cgiparams{'DAY'} = $now[3];
$cgiparams{'MONTH'} = $now[4];
$cgiparams{'ACTION'} = '';

&Header::getcgihash(\%cgiparams);

$logsettings{'LOGVIEW_REVERSE'} = 'off';
&General::readhash("${General::swroot}/logging/settings", \%logsettings);

my $start = -1;
my @blocklists;
if ($ENV{'QUERY_STRING'} && $cgiparams{'ACTION'} ne $Lang::tr{'update'})
{
	my @temp = split(',',$ENV{'QUERY_STRING'}, 5);
	$start = shift @temp;
	$cgiparams{'MONTH'} = shift @temp;
	$cgiparams{'DAY'} = shift @temp;
	$cgiparams{'blocklist'} = shift @temp;
	$cgiparams{'blocklists'} = shift @temp;
}

if (!($cgiparams{'MONTH'} =~ /^(0|1|2|3|4|5|6|7|8|9|10|11)$/) ||
	!($cgiparams{'DAY'} =~ /^(1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31)$/))
{
	$cgiparams{'DAY'} = $now[3];
	$cgiparams{'MONTH'} = $now[4];
}
elsif($cgiparams{'ACTION'} eq '>>')
{
	my @temp_then=();
	my @temp_now = localtime(time);
	$temp_now[4] = $cgiparams{'MONTH'};
	$temp_now[3] = $cgiparams{'DAY'};
	@temp_then = localtime(POSIX::mktime(@temp_now) + 86400);
	   ## Retrieve the same time on the next day -
	   ## 86400 seconds in a day
	$cgiparams{'MONTH'} = $temp_then[4];
	$cgiparams{'DAY'} = $temp_then[3];
}
elsif($cgiparams{'ACTION'} eq '<<')
{
	my @temp_then=();
	my @temp_now = localtime(time);
	$temp_now[4] = $cgiparams{'MONTH'};
	$temp_now[3] = $cgiparams{'DAY'};
	@temp_then = localtime(POSIX::mktime(@temp_now) - 86400);
	   ## Retrieve the same time on the previous day -
	   ## 86400 seconds in a day
	$cgiparams{'MONTH'} = $temp_then[4];
	$cgiparams{'DAY'} = $temp_then[3];
}

if (($cgiparams{'DAY'} ne $now[3]) || ($cgiparams{'MONTH'} ne $now[4]))
{
	my @then = ();
	if ( (  $cgiparams{'MONTH'} eq $now[4]) && ($cgiparams{'DAY'} > $now[3]) ||
			( $cgiparams{'MONTH'} > $now[4] ) ) {
		@then = localtime(POSIX::mktime( 0, 0, 0, $cgiparams{'DAY'}, $cgiparams{'MONTH'}, $year - 1901 ));
	} else {
		@then = localtime(POSIX::mktime( 0, 0, 0, $cgiparams{'DAY'}, $cgiparams{'MONTH'}, $year - 1900 ));
	}
	$tdoy = $then[7];
	my $lastleap=($year-1)%4;
	if ($tdoy>$doy) {
		if ($lastleap == 0 && $tdoy < 60) {
			$doy=$tdoy+366;
		} else {
			$doy=$doy+365;
		}
	}
}

if ($cgiparams{'blocklists'})
{
  @blocklists = split ',', $cgiparams{'blocklists'};
}

my $datediff=0;
my $dowd=0;
my $multifile=0;
if ($tdoy ne $doy) {
	$datediff=int(($doy-$tdoy)/7);
	$dowd=($doy-$tdoy)%7;
	if (($dow-$dowd)<1) {
		$datediff=$datediff+1;
	}
	if (($dow-$dowd)==0) {
		$multifile=1;
	}
}

my $monthstr = $shortmonths[$cgiparams{'MONTH'}];
my $longmonthstr = $longmonths[$cgiparams{'MONTH'}];
my $day = $cgiparams{'DAY'};
my $daystr='';
if ($day <= 9) {
	$daystr = " $day"; }
else {
	$daystr = $day;
}

my $skip=0;
my $filestr='';
if ($datediff==0) {
	$filestr="/var/log/messages";
} else {
	$filestr="/var/log/messages.$datediff";
	$filestr = "$filestr.gz" if -f "$filestr.gz";
}

if (!(open (FILE,($filestr =~ /.gz$/ ? "gzip -dc $filestr |" : $filestr)))) {
	$errormessage = "$Lang::tr{'date not in logs'}: $filestr $Lang::tr{'could not be opened'}";
	$skip=1;
	# Note: This is in case the log does not exist for that date
}
my $lines = 0;
my @log=();
my $blocklist = $cgiparams{blocklist};

if (!$skip)
{
	while (<FILE>) {
		if (/^${monthstr} ${daystr} ..:..:.. [\w\-]+ kernel:.*BLKLST_(\w+)\s?IN=.*/) {
			if($1 eq $blocklist){
				$log[$lines] = $_;
				$lines++;
			}
		}
	}
	close (FILE);
}

$skip=0;
if ($multifile) {
	$datediff=$datediff-1;
	if ($datediff==0) {
		$filestr="/var/log/messages";
	} else {
		$filestr="/var/log/messages.$datediff";
		$filestr = "$filestr.gz" if -f "$filestr.gz";
	}
	if (!(open (FILE,($filestr =~ /.gz$/ ? "gzip -dc $filestr |" : $filestr)))) {
		$errormessage="$Lang::tr{'date not in logs'}: $filestr $Lang::tr{'could not be opened'}";
		$skip=1;
	}
	if (!$skip) {
		while (<FILE>) {
			if (/^${monthstr} ${daystr} ..:..:.. [\w\-]+ kernel:.*BLKLST_(\w+)\s?IN=.*/) {
				if($1 eq $blocklist){
					$log[$lines] = $_;
					$lines++;
				}
			 }
		}
		close (FILE);
	}
}

&Header::showhttpheaders();
&Header::openpage($Lang::tr{'ipblocklist log list'}, 1, '');
&Header::openbigbox('100%', 'left', '', $errormessage);

if ($errormessage) {
	&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
	print "<font class='base'>$errormessage&nbsp;</font>\n";
	&Header::closebox();
}

&Header::openbox('100%', 'left', "$Lang::tr{'settings'}:");

print <<END
<form method='post' action='$ENV{'SCRIPT_NAME'}'>
<input type='hidden' name='blocklists' value='$cgiparams{blocklists}'>
<table width='100%'>
<tr>
	<td width='10%' class='base'>$Lang::tr{'month'}:&nbsp;</td>
	<td width='10%'>
	<select name='MONTH'>
END
;
my $month;
for ($month = 0; $month < 12; $month++)
{
	print "\t<option ";
	if ($month == $cgiparams{'MONTH'}) {
		print "selected='selected' "; }
	print "value='$month'>$longmonths[$month]</option>\n";
}
print <<END
	</select>
	</td>
	<td width='10%' class='base' align='right'>&nbsp;$Lang::tr{'day'}:&nbsp;</td>
	<td width='40%'>
	<select name='DAY'>
END
;
for ($day = 1; $day <= 31; $day++)
{
	print "\t<option ";
	if ($day == $cgiparams{'DAY'}) {
		print "selected='selected' "; }
	print "value='$day'>$day</option>\n";
}
print <<END
</select>
</td>
<td width='5%'  align='center'><input type='submit' name='ACTION' title='$Lang::tr{'day before'}' value='&lt;&lt;' /></td>
<td width='5%'  align='center'><input type='submit' name='ACTION' title='$Lang::tr{'day after'}' value='&gt;&gt;' /></td>
<td width='10%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
<tr><td width='15%'>$Lang::tr{'ipblocklist id'}</td><td><select name='blocklist'>
END
;

foreach my $option (@blocklists)
{
	my $selected = $option eq $cgiparams{blocklist} ? ' selected' : '';
	print "<option value='$option'$selected>$option</option>";
}

print <<END
</select></td></tr>
</tr>
</table>
</form>
END
;

&Header::closebox();

&Header::openbox('100%', 'left', $Lang::tr{'ipblocklist log list'});
print "<p><b>$Lang::tr{'firewall hits'} $longmonthstr $daystr: $lines</b></p>";

if ($start == -1) {
	$start = $lines - ${Header::viewsize};
}
if ($start >= $lines - ${Header::viewsize}) { $start = $lines - ${Header::viewsize}; };
if ($start < 0) { $start = 0; }

my $prev = $start - ${Header::viewsize};
my $next = $start + ${Header::viewsize};

if ($prev < 0) { $prev = 0; }
if ($next >= $lines) { $next = -1 }
if ($start == 0) { $prev = -1; }

if ($lines != 0) { &oldernewer(); }

print <<END
<table width='100%'>
<tr>
<td width='12%' align='center' class='boldbase'><b>$Lang::tr{'time'}</b></td>
<td width='6%' align='center' class='boldbase'><b>$Lang::tr{'iface'}</b></td>
<td width='6%' align='center' class='boldbase'><b>$Lang::tr{'proto'}</b></td>
<td width='18%' align='center' class='boldbase'><b>$Lang::tr{'source'}</b></td>
<td width='15%' align='center' class='boldbase'><b>$Lang::tr{'src port'}</b></td>
<td width='18%' align='center' class='boldbase'><b>$Lang::tr{'destination'}</b></td>
<td width='15%' align='center' class='boldbase'><b>$Lang::tr{'dst port'}</b></td>
</tr>
END
;

my @slice = splice(@log, $start, ${Header::viewsize});

if ($logsettings{'LOGVIEW_REVERSE'} eq 'on') { @slice = reverse @slice; }

$lines = 0;
foreach $_ (@slice) {
	$a = $_;
	# Check whether valid ipv4 or ipv6 address
	if (($_ =~ /BLKLST_(\w+)\s?IN=/)) {
		if($1 eq $blocklist) {
			my $in = '-'; my $out = '-';
			my $srcaddr = ''; my $dstaddr = '';
			my $protostr = '';
			my $srcport = ''; my $dstport = '';

			# If ipv6 uses bridge, the use PHYSIN, otherwise use IN
			if    ($_ =~ /(^.* ..:..:..) [\w\-]+ kernel:.*(IN=.*)(PHYSIN=.*)$/) {}
			elsif ($_ =~ /(^.* ..:..:..) [\w\-]+ kernel:.*(IN=.*)$/) {}
			my $timestamp = $1; my $packet = $2;
			$timestamp =~ /(...) (..) (..:..:..)/;
			my $month = $1; my $day = $2; my $time = $3;

			# If ipv6 uses bridge, the use PHYSIN and PHYSOUT, otherwise use IN and OUT
			if ($a =~ /PHYSIN=(\w+)/)  { $iface = $1; } elsif ($a =~ /IN=(\w+)/)  { $iface = $1; }
			if ($a =~ /PHYSOUT=(\w+)/) { $out = $1; }   elsif ($a =~ /OUT=(\w+)/) { $out = $1; }
			# Detect ipv4 and ipv6 addresses
			if (($a =~ /SRC\=(([\d]{1,3})(\.([\d]{1,3})){3})/) or ($a =~ /SRC\=(([0-9a-fA-F]{0,4})(\:([0-9a-fA-F]{0,4})){2,7})/)) { $srcaddr = $1; }
			if (($a =~ /DST\=(([\d]{1,3})(\.([\d]{1,3})){3})/) or ($a =~ /DST\=(([0-9a-fA-F]{0,4})(\:([0-9a-fA-F]{0,4})){2,7})/)) { $dstaddr = $1; }
			if ($a =~ /PROTO\=(\w+)/) { $protostr = $1; }
			my $protostrlc = lc($protostr);
			if ($a =~  /SPT\=([\d\.]+)/){ $srcport = $1; }
			if ($a =~  /DPT\=([\d\.]+)/){ $dstport = $1; }

			if ($lines % 2) {
				print "<tr bgcolor='${Header::table1colour}'>\n";
			}
			else {
				print "<tr bgcolor='${Header::table2colour}'>\n";
			}
			print <<END
			<td align='center'>$time</td>
			<td align='center'>$iface</td>
			<td align='center'>$protostr</td>
			<td align='center'>
			<table width='100%' cellpadding='0' cellspacing='0'><tr>
			<td align='center'><a href='/cgi-bin/ipinfo.cgi?ip=$srcaddr'>$srcaddr</a></td>
			</tr></table>
			</td>
			<td align='center'>$srcport</td>
			<td align='center'>
			<table width='100%' cellpadding='0' cellspacing='0'><tr>
			<td align='center'><a href='/cgi-bin/ipinfo.cgi?ip=$dstaddr'>$dstaddr</a></td>
			</tr></table>
			</td>
			<td align='center'>$dstport</td>
			</tr>
END
			;
			$lines++;
		}
	}
}

print <<END
</table>
END
;

&oldernewer();

	print"<table width='100%'><tr><td align='center'><a href='/cgi-bin/logs.cgi/ipblocklists.dat'><img src='/images/back.png' alt='$Lang::tr{'back'}' title='$Lang::tr{'back'}' /></a></td></tr></table>";

&Header::closebox();

&Header::closebigbox();

&Header::closepage();

sub oldernewer
{
	print <<END
	<table width='100%'>
	<tr>
END
	;

	my $blocklists = join ',', @blocklists;

	print "<td align='center' width='50%'>";
	if ($prev != -1) {
		print "<a href='/cgi-bin/logs.cgi/showrequestfromblocklist.dat?$prev,$cgiparams{'MONTH'},$cgiparams{'DAY'},$cgiparams{blocklist},$blocklists'>$Lang::tr{'older'}</a>";
	}
	else {
		print "$Lang::tr{'older'}";
	}
	print "</td>\n";

	print "<td align='center' width='50%'>";
	if ($next != -1) {
		print "<a href='/cgi-bin/logs.cgi/showrequestfromblocklist.dat?$next,$cgiparams{'MONTH'},$cgiparams{'DAY'},$cgiparams{blocklist},$blocklists'>$Lang::tr{'newer'}</a>";
	}
	else {
		print "$Lang::tr{'newer'}";
	}
	print "</td>\n";

	print <<END
	</tr>
	</table>
END
	;
}