<?php
/*
	Copyright (C) 2014 Deciso B.V.
	Copyright (C) 2005-2009 Scott Ullrich
	Copyright (C) 2005 Colin Smith
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/

require_once("guiconfig.inc");

/* handle AJAX operations */
if($_GET['action']) {
	if($_GET['action'] == "remove") {
		if (is_ipaddr($_GET['srcip']) and is_ipaddr($_GET['dstip'])) {
			$retval = mwexec("/sbin/pfctl -K " . escapeshellarg($_GET['srcip']) . " -K " . escapeshellarg($_GET['dstip']));
			echo htmlentities("|{$_GET['srcip']}|{$_GET['dstip']}|{$retval}|");
		} else {
			echo gettext("invalid input");
		}
		exit;
	}
}

/* get our states */
if($_GET['filter']) {
	exec("/sbin/pfctl -s Sources | grep " . escapeshellarg(htmlspecialchars($_GET['filter'])), $sources);
}
else {
	exec("/sbin/pfctl -s Sources", $sources);
}

$pgtitle = array(gettext("Diagnostics"),gettext("Show Source Tracking"));
include("head.inc");

?>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC" onload="<?=$jsevents["body"]["onload"];?>">
<?php include("fbegin.inc"); ?>
<form action="diag_dump_states_sources.php" method="get" name="iform">

<script type="text/javascript">
//<![CDATA[
	function removeSource(srcip, dstip) {
		var busy = function(index,icon) {
			jQuery(icon).bind("onclick","");
			jQuery(icon).attr('src',jQuery(icon).attr('src').replace("\.gif", "_d.gif"));
			jQuery(icon).css("cursor","wait");
		}

		jQuery('span[name="i:' + srcip + ":" + dstip + '"]').each(busy);

		jQuery.ajax(
			"<?=$_SERVER['SCRIPT_NAME'];?>" +
				"?action=remove&srcip=" + srcip + "&dstip=" + dstip,
			{ type: "get", complete: removeComplete }
		);
	}

	function removeComplete(req) {
		var values = req.responseText.split("|");
		if(values[3] != "0") {
			alert('<?=gettext("An error occurred.");?>');
			return;
		}

		jQuery('tr[name="r:' + values[1] + ":" + values[2] + '"]').each(
			function(index,row) { jQuery(row).fadeOut(1000); }
		);
	}
//]]>
</script>

<table class="table table-striped" width="100%" border="0" cellpadding="0" cellspacing="0">
	<tr>
		<td>
		<?php
			$tab_array = array();
			$tab_array[] = array(gettext("States"), false, "diag_dump_states.php");
			$tab_array[] = array(gettext("Source Tracking"), true, "diag_dump_states_sources.php");
			$tab_array[] = array(gettext("Reset States"), false, "diag_resetstate.php");
			display_top_tabs($tab_array);
		?>
		</td>
	</tr>
	<tr>
		<td>
			<div id="mainarea">

<!-- Start of tab content -->

<table class="table table-striped tabcont" width="100%" border="0" cellspacing="0" cellpadding="0">
	<tr>
		<td>
			<form action="<?=$_SERVER['SCRIPT_NAME'];?>" method="get">
			<table class="tabcont" width="100%" border="0" cellspacing="0" cellpadding="0">
				<tr>
					<td style="font-weight:bold;" align="right">
						<?=gettext("Filter expression:");?>
					</td>
					<td>
					</td>
				</tr>

				<tr>
					<td style="font-weight:bold;" align="right">
						<input type="text" name="filter" class="formfld search" value="<?=htmlspecialchars($_GET['filter']);?>" size="30" />
					</td>
					<td>
						<input type="submit" class="btn btn-primary formbtn" value="<?=gettext("Filter");?>" />
					</td>
				</tr>
			</table>
			</form>
		</td>
	</tr>
	<tr>
		<td>
			<table class="table table-striped tabcont sortable" width="100%" border="0" cellspacing="0" cellpadding="0">
				<thead>
				<tr>
					<th class="listhdrr" width="40%"><?=gettext("Source -> Destination");?></th>
					<th class="listhdrr" width="15%"><?=gettext("# States");?></th>
					<th class="listhdrr" width="15%"><?=gettext("# Connections");?></th>
					<th class="listhdr" width="15%"><?=gettext("Rate");?></th>
					<th class="list sort_ignore" width="1%"></th>
				</tr>
				</thead>
				<tbody>
<?php
$row = 0;
if(count($sources) > 0) {
	foreach($sources as $line) {
		if($row >= 1000)
			break;

		// 192.168.20.2 -> 216.252.56.1 ( states 10, connections 0, rate 0.0/0s )

		$source_split = "";
		preg_match("/(.*)\s\(\sstates\s(.*),\sconnections\s(.*),\srate\s(.*)\s\)/", $line, $source_split);
		list($all, $info, $numstates, $numconnections, $rate) = $source_split;

		$source_split = "";
		preg_match("/(.*)\s\<?-\>?\s(.*)/", $info, $source_split);
		list($all, $srcip, $dstip) = $source_split;

		?>
		<tr valign='top' name='r:<?php echo "{$srcip}:{$dstip}" ?>'>
				<td class='listlr'><?php echo $info;?></td>
				<td class='listr'><?php echo $numstates;?></td>
				<td class='listr'><?php echo $numconnections;?></td>
				<td class='listr'><?php echo $rate;?></td>
				<td class='list'>
				<span class='glyphicon glyphicon-remove'
					onclick="removeSource(<?php echo "'{$srcip}', '{$dstip}'"; ?>);" style='cursor:pointer;'
					name='i:<?php echo "{$srcip}:{$dstip}"; ?>'
					title='<?php echo gettext("Remove all source tracking entries from") . " {$srcip} " . gettext("to") . " {$dstip}";?>' alt='' >
				</span>
				</td>
			  </tr>
		<?php
		$row++;
	}
}
else {
	echo "<tr>
			<td class='list' colspan='5' align='center' valign='top'>
			  " . gettext("No source tracking entries were found.") . "
			</td>
		  </tr>";
}
?>
			</tbody>
			</table>
		</td>
	</tr>
</table>

<!-- End of tab content -->

		</div>
	</td>
  </tr>
</table>

<?php require("fend.inc"); ?>
</body>
</html>
