#!/usr/local/bin/php
<?php
/*
	system_edit.php
	Copyright (C) 2004, 2005 Scott Ullrich
	All rights reserved.

	Adapted for FreeNAS by Volker Theile (votdev@gmx.de)
	Copyright (C) 2006-2009 Volker Theile
	
	Adapted for Pfsense Snort package by Robert Zelaya
	Copyright (C) 2008-2009 Robert Zelaya

	Using dp.SyntaxHighlighter for syntax highlighting
	http://www.dreamprojections.com/SyntaxHighlighter
	Copyright (C) 2004-2006 Alex Gorbatchev. 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");
require_once("config.inc");
require_once("/usr/local/pkg/snort/snort_gui.inc");
require_once("/usr/local/pkg/snort/snort.inc");

if (!is_array($config['installedpackages']['snortglobal']['rule'])) {
	$config['installedpackages']['snortglobal']['rule'] = array();
}

//nat_rules_sort();
$a_nat = &$config['installedpackages']['snortglobal']['rule'];

$id = $_GET['id'];
if (isset($_POST['id']))
	$id = $_POST['id'];
	
$ids = $_GET['ids'];
if (isset($_POST['ids']))
	$ids = $_POST['ids'];
	

if (isset($id) && $a_nat[$id]) {

	$pconfig['enable'] = $a_nat[$id]['enable'];
	$pconfig['interface'] = $a_nat[$id]['interface'];
	$pconfig['rulesets'] = $a_nat[$id]['rulesets'];
}

/* convert fake interfaces to real */
$if_real = convert_friendly_interface_to_real_interface_name2($pconfig['interface']);


$file = $_GET['openruleset'];

//read snort file
$filehandle = fopen($file, "r");

//get rule id
$lineid = $_GET['ids'];

//read file into string, and get filesize
$contents2 = fread($filehandle, filesize($file));

//close handler
fclose ($filehandle);

//delimiter for each new rule is a new line
$delimiter = "\n";

//split the contents of the string file into an array using the delimiter
$splitcontents = explode($delimiter, $contents2);

//copy rule contents from array into string
$tempstring = $splitcontents[$lineid];

function write_rule_file($content_changed, $received_file)
{
    //read snort file with writing enabled
    $filehandle = fopen($received_file, "w");

    //delimiter for each new rule is a new line
    $delimiter = "\n";

    //implode the array back into a string for writing purposes
    $fullfile = implode($delimiter, $content_changed);

    //write data to file
    fwrite($filehandle, $fullfile);

    //close file handle
    fclose($filehandle);

}



if($_POST['highlight'] <> "") {
	if($_POST['highlight'] == "yes" or
	  $_POST['highlight'] == "enabled") {
		$highlight = "yes";
	} else {
		$highlight = "no";
	}
} else {
	$highlight = "no";
}

if($_POST['rows'] <> "")
	$rows = $_POST['rows'];
else
	$rows = 1;

if($_POST['cols'] <> "")
	$cols = $_POST['cols'];
else
	$cols = 66;

if ($_POST)
{
	if ($_POST['save']) {
		
		/* get the changes */
	    $rule_content2 = $_POST['code'];
	
		//copy string into file array for writing
	    $splitcontents[$lineid] = $rule_content2;
	
	    //write the new .rules file
	    write_rule_file($splitcontents, $file);
		
		header("Location: /snort/snort_rules_edit.php?id=$id&openruleset=$file&ids=$ids");	
		
	}
}

$pgtitle = array(gettext("Advanced"), gettext("File Editor"));

//
?>

<?php include("head.inc");?>

<body link="#000000" vlink="#000000" alink="#000000">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
	<tr>
		<td class="tabcont">
			<form action="snort_rules_edit.php?id=<?=$id; ?>&openruleset=<?=$file; ?>&ids=<?=$ids; ?>" method="post">
				<?php if ($savemsg) print_info_box($savemsg);?>
				<table width="100%" cellpadding='9' cellspacing='9' bgcolor='#eeeeee'>
					<tr>
						<td>
							<input name="save" type="submit" class="formbtn" id="save" value="save" /> <input type="button" class="formbtn" value="Cancel" onclick="history.back()">
							<hr noshade="noshade" />
							<?=gettext("Disable original rule"); ?>:
							<input id="highlighting_enabled" name="highlight2" type="radio" value="yes" <?php if($highlight == "yes") echo " checked=\"checked\""; ?> />
							<label for="highlighting_enabled"><?=gettext("Enabled"); ?></label>
							<input id="highlighting_disabled" name="highlight2" type="radio" value="no"<?php if($highlight == "no") echo " checked=\"checked\""; ?> />
							<label for="highlighting_disabled"><?=gettext("Disabled"); ?></label>
						</td>
					</tr>
				</table>
				<table width='100%'>
					<tr>
						<td valign="top" class="label">
							<div style="background: #eeeeee;" id="textareaitem">
							<!-- NOTE: The opening *and* the closing textarea tag must be on the same line. -->
							<textarea  wrap="off" style="width: 98%; margin: 7px;" class="<?php echo $language; ?>:showcolumns" rows="<?php echo $rows; ?>" cols="<?php echo $cols; ?>" name="code"><?php echo $tempstring;?></textarea>
							</div>
						</td>
					</tr>
				</table>
				<table width='100%'>
					<tr>
						<td valign="top" class="label">
							<div style="background: #eeeeee;" id="textareaitem">
							<!-- NOTE: The opening *and* the closing textarea tag must be on the same line. -->
							<textarea   disabled wrap="off" style="width: 98%; margin: 7px;" class="<?php echo $language; ?>:showcolumns" rows="33" cols="<?php echo $cols; ?>" name="code2"><?php echo $contents2;?></textarea>
							</div>
						</td>
					</tr>
				</table>
				<?php // include("formend.inc");?>
			</form>
		</td>
	</tr>
</table>
<script class="javascript" src="/snort/syntaxhighlighter/shCore.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushCSharp.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushPhp.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushJScript.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushJava.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushVb.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushSql.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushXml.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushDelphi.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushPython.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushRuby.js"></script>
<script class="javascript" src="/snort/syntaxhighlighter/shBrushCss.js"></script>
<script class="javascript">
<!--
  // Set focus.
  document.forms[0].savetopath.focus();

  // Append css for syntax highlighter.
  var head = document.getElementsByTagName("head")[0];
  var linkObj = document.createElement("link");
  linkObj.setAttribute("type","text/css");
  linkObj.setAttribute("rel","stylesheet");
  linkObj.setAttribute("href","/snort/syntaxhighlighter/SyntaxHighlighter.css");
  head.appendChild(linkObj);

  // Activate dp.SyntaxHighlighter?
  <?php
  if($_POST['highlight'] == "yes") {
    echo "dp.SyntaxHighlighter.HighlightAll('code', true, true);\n";
    // Disable 'Save' button.
    echo "document.forms[0].Save.disabled = 1;\n";
  }
?>
//-->
</script>
<?php //include("fend.inc");?>

</body>
</html>