<?php
/*
 * suricata_ip_list_mgmt.php
 *
 * Significant portions of this code are based on original work done
 * for the Snort package for pfSense from the following contributors:
 * 
 * Copyright (C) 2005 Bill Marquette <bill.marquette@gmail.com>.
 * Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
 * Copyright (C) 2006 Scott Ullrich
 * Copyright (C) 2009 Robert Zelaya Sr. Developer
 * Copyright (C) 2012 Ermal Luci
 * All rights reserved.
 *
 * Adapted for Suricata by:
 * Copyright (C) 2014 Bill Meeks
 * 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("/usr/local/pkg/suricata/suricata.inc");

global $config, $g;

if (!is_array($config['installedpackages']['suricata']['rule']))
	$config['installedpackages']['suricata']['rule'] = array();

// Hard-code the path where IP Lists are stored
// and disregard any user-supplied path element.
$iprep_path = SURICATA_IPREP_PATH;

// Set default to not show IP List editor controls
$iplist_edit_style = "display: none;";

function suricata_is_iplist_active($iplist) {

	/***************************************************
	 * This function checks all configured Suricata    *
	 * interfaces to see if the passed IP List is used *
	 * as a whitelist or blacklist by an interface.    *
	 *                                                 *
	 * Returns: TRUE  if IP List is in use             *
	 *          FALSE if IP List is not in use         *
	 ***************************************************/

	global $g, $config;

	if (!is_array($config['installedpackages']['suricata']['rule']))
		return FALSE;

	foreach ($config['installedpackages']['suricata']['rule'] as $rule) {
		if (is_array($rule['iplist_files']['item'])) {
			foreach ($rule['iplist_files']['item'] as $file) {
				if ($file == $iplist)
					return TRUE;
			}
		}
	}
	return FALSE;
}

// If doing a postback, used typed values, else load from stored config
if (!empty($_POST)) {
	$pconfig = $_POST;
}
else {
	$pconfig['et_iqrisk_enable'] = $config['installedpackages']['suricata']['config'][0]['et_iqrisk_enable'];
	$pconfig['iqrisk_code'] = $config['installedpackages']['suricata']['config'][0]['iqrisk_code'];
}

// Validate IQRisk settings if enabled and saving them
if ($_POST['save']) {
	if ($pconfig['et_iqrisk_enable'] == 'on' && empty($pconfig['iqrisk_code']))
		$input_errors[] = gettext("You must provide a valid IQRisk subscription code when IQRisk downloads are enabled!");

	if (!$input_errors) {
		$config['installedpackages']['suricata']['config'][0]['et_iqrisk_enable'] = $_POST['et_iqrisk_enable'] ? 'on' : 'off';
		$config['installedpackages']['suricata']['config'][0]['iqrisk_code'] = $_POST['iqrisk_code'];
		write_config("Suricata pkg: modified IP Lists settings.");

		/* Toggle cron task for ET IQRisk updates if setting was changed */
		if ($config['installedpackages']['suricata']['config'][0]['et_iqrisk_enable'] == 'on' && !suricata_cron_job_exists("/usr/local/pkg/suricata/suricata_etiqrisk_update.php")) {
			install_cron_job("/usr/bin/nice -n20 /usr/local/bin/php -f /usr/local/pkg/suricata/suricata_etiqrisk_update.php", TRUE, 0, "*/6", "*", "*", "*", "root");
		}
		elseif ($config['installedpackages']['suricata']['config'][0]['et_iqrisk_enable'] == 'off' && suricata_cron_job_exists("/usr/local/pkg/suricata/suricata_etiqrisk_update.php"))
			install_cron_job("/usr/local/pkg/suricata/suricata_etiqrisk_update.php", FALSE);

		/* Peform a manual ET IQRisk file check/download */
		if ($config['installedpackages']['suricata']['config'][0]['et_iqrisk_enable'] == 'on')
			include("/usr/local/pkg/suricata/suricata_etiqrisk_update.php");
	}
}

if (isset($_POST['upload'])) {
	if ($_FILES["iprep_fileup"]["error"] == UPLOAD_ERR_OK) {
		$tmp_name = $_FILES["iprep_fileup"]["tmp_name"];
		$name = $_FILES["iprep_fileup"]["name"];
		move_uploaded_file($tmp_name, "{$iprep_path}{$name}");
	}
	else
		$input_errors[] = gettext("Failed to upload file {$_FILES["iprep_fileup"]["name"]}");
}

if (isset($_POST['iplist_delete']) && isset($_POST['iplist_fname'])) {
	if (!suricata_is_iplist_active($_POST['iplist_fname']))
		unlink_if_exists("{$iprep_path}{$_POST['iplist_fname']}");
	else
		$input_errors[] = gettext("This IP List is currently assigned to an interface and cannot be deleted until it is removed from the configured interface.");
}

if (isset($_POST['iplist_edit']) && isset($_POST['iplist_fname'])) {
	$file = $iprep_path . basename($_POST['iplist_fname']);
	$data = file_get_contents($file);
	if ($data !== FALSE) {
		$iplist_data = htmlspecialchars($data);
		$iplist_edit_style = "display: table-row-group;";
		$iplist_name = basename($_POST['iplist_fname']);
		unset($data);
	}
	else {
		$input_errors[] = gettext("An error occurred reading the file.");
	}
}

if (isset($_POST['iplist_edit_save']) && isset($_POST['iplist_data'])) {
	if (strlen(basename($_POST['iplist_name'])) > 0) {
		$file = $iprep_path . basename($_POST['iplist_name']);
		$data = str_replace("\r\n", "\n", $_POST['iplist_data']);
		file_put_contents($file, $data);
		unset($data);
	}
	else {
		$input_errors[] = gettext("You must provide a valid filename for the IP List.");
		$iplist_edit_style = "display: table-row-group;";
	}
}

// Get all files in the IP Lists sub-directory as an array
// Leave this as the last thing before spewing the page HTML
// so we can pick up any changes made to files in code above.
$ipfiles = return_dir_as_array($iprep_path);

$pgtitle = gettext("Suricata: IP Reputation Lists");
include_once("head.inc");

?>

<body link="#000000" vlink="#000000" alink="#000000">

<?php
include_once("fbegin.inc");
?>

<form action="/suricata/suricata_ip_list_mgmt.php" enctype="multipart/form-data" method="post" name="iform" id="iform">
<input type="hidden" name="MAX_FILE_SIZE" value="100000000" />
<input type="hidden" name="iplist_fname" id="iplist_fname" value=""/>

<?php
if ($input_errors) {
	print_input_errors($input_errors);
}

if ($savemsg)
	print_info_box($savemsg);
?>

<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr><td>
<?php
        $tab_array = array();
	$tab_array[] = array(gettext("Interfaces"), false, "/suricata/suricata_interfaces.php");
	$tab_array[] = array(gettext("Global Settings"), false, "/suricata/suricata_global.php");
	$tab_array[] = array(gettext("Updates"), false, "/suricata/suricata_download_updates.php");
	$tab_array[] = array(gettext("Alerts"), false, "/suricata/suricata_alerts.php?instance={$id}");
	$tab_array[] = array(gettext("Blocks"), false, "/suricata/suricata_blocked.php");
	$tab_array[] = array(gettext("Pass Lists"), false, "/suricata/suricata_passlist.php");
	$tab_array[] = array(gettext("Suppress"), false, "/suricata/suricata_suppress.php");
	$tab_array[] = array(gettext("Logs View"), false, "/suricata/suricata_logs_browser.php?instance={$id}");
	$tab_array[] = array(gettext("Logs Mgmt"), false, "/suricata/suricata_logs_mgmt.php");
	$tab_array[] = array(gettext("SID Mgmt"), false, "/suricata/suricata_sid_mgmt.php");
	$tab_array[] = array(gettext("Sync"), false, "/pkg_edit.php?xml=suricata/suricata_sync.xml");
	$tab_array[] = array(gettext("IP Lists"), true, "/suricata/suricata_ip_list_mgmt.php");
        display_top_tabs($tab_array, true);
?>
</td>
</tr>
<tr>
	<td>
	<div id="mainarea">
		<table id="maintable" class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
			<tbody>
		<?php if ($g['platform'] == "nanobsd") : ?>
			<tr>
				<td colspan="2" class="listtopic"><?php echo gettext("IP Reputation is not supported on NanoBSD installs"); ?></td>
			</tr>
		<?php else: ?>
			<tr>
				<td colspan="2" class="listtopic"><?php echo gettext("Emerging Threats IQRisk Settings"); ?></td>
			</tr>
			<tr>
				<td width="22%" valign="top"><?php echo gettext("Enable"); ?></td>
				<td width="78%">
					<input id="et_iqrisk_enable" name="et_iqrisk_enable" type="checkbox" value="on" <?php if ($pconfig['et_iqrisk_enable'] == "on") echo "checked"; ?> onclick="IQRisk_enablechange();"/> 
					<?php echo gettext("Checking this box enables auto-download of IQRisk List updates with a valid subscription code."); ?>
				</td>
			</tr>
			<tr>
				<td width="22%"></td>
				<td width="78%">
					<table id="iqrisk_code_tbl" width="100%" border="0" cellpadding="2" cellspacing="0">
						<tbody>
						<tr>
							<td colspan="2" class="vexpl"><?=gettext("IQRisk IP lists will auto-update nightly at midnight.  Visit ") . 
							"<a href='http://emergingthreats.net/products/iqrisk-rep-list/' target='_blank'>" . gettext("http://emergingthreats.net/products/iqrisk-rep-list/") . "</a>" . 
							gettext(" for more information or to purchase a subscription.");?><br/><br/></td>
						</tr>
						<tr>
							<td colspan="2" valign="top"><b><span class="vexpl"><?php echo gettext("IQRisk Subscription Configuration"); ?></span></b></td>
						</tr>
						<tr>
							<td valign="top"><span class="vexpl"><strong><?php echo gettext("Code:"); ?></strong></span></td>
							<td><input name="iqrisk_code" type="text" class="formfld unknown" id="iqrisk_code" size="52" 
							value="<?=htmlspecialchars($pconfig['iqrisk_code']);?>"/><br/>
							<?php echo gettext("Obtain an Emerging Threats IQRisk List subscription code and paste it here."); ?></td>
						</tr>
						</tbody>
					</table>
				</td>
			</tr>
			<tr>
				<td colspan="2" align="center"><input name="save" id="save" type="submit" class="formbtn" value="Save" title="<?=gettext("Save IQRisk settings");?>"/></td>
			</tr>
			<tr>
				<td colspan="2" class="vtable"></td>
			</tr>
			<tr>
				<td colspan="2" class="listtopic"><?=gettext("IP Reputation List Files Management");?>
				</td>
			</tr>
			<tbody id="uploader" style="display: none;">
			<tr>
				<td colspan="2" class="list"><br/><?php echo gettext("Click BROWSE to select a file to import, and then click UPLOAD.  Click CLOSE to quit."); ?></td>
			</tr>
			<tr>
				<td colspan="2" class="list"><input type="file" name="iprep_fileup" id="iprep_fileup" class="formfld file" size="50" />
				&nbsp;&nbsp;<input type="submit" name="upload" id="upload" value="<?=gettext("Upload");?>" 
				title="<?=gettext("Upload selected IP list to firewall");?>"/>&nbsp;&nbsp;<input type="button" 
				value="<?=gettext("Close");?>" onClick="document.getElementById('uploader').style.display='none';" /></td>
			</tr>
			</tbody>
			<tr>
				<td colspan="2">
					<table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0">
						<colgroup>
							<col style="width: 50%;">
							<col style="width: 25%;">
							<col style="width: 15%;">
							<col style="width: 10%;">
						</colgroup>
						<thead>
							<tr>
								<th class="listhdrr"><?php echo gettext("IP List File Name"); ?></th>
								<th class="listhdrr"><?php echo gettext("Last Modified Time"); ?></th>
								<th class="listhdrr"><?php echo gettext("File Size"); ?></th>
								<th class="list" align="left"><img style="cursor:pointer;" name="iplist_new" id="iplist_new" 
								src="../themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" 
								height="17" border="0" title="<?php echo gettext('Create a new IP List');?>" 
								onClick="document.getElementById('iplist_data').value=''; document.getElementById('iplist_name').value=''; document.getElementById('iplist_editor').style.display='table-row-group'; document.getElementById('iplist_name').focus();" />
								<img style="cursor:pointer;" name="iplist_import" id="iplist_import" 
								onClick="document.getElementById('uploader').style.display='table-row-group';" 
								src="../themes/<?= $g['theme']; ?>/images/icons/icon_import_alias.gif" width="17" 
								height="17" border="0" title="<?php echo gettext('Import/Upload an IP List');?>"/></th>
							</tr>
						</thead>
					<?php foreach ($ipfiles as $file): 
						if (substr(strrchr($file, "."), 1) == "md5")
							continue; ?>
						<tr>
							<td class="listr"><?php echo gettext($file); ?></td>
							<td class="listr"><?=date('M-d Y g:i a', filemtime("{$iprep_path}{$file}")); ?></td>
							<td class="listr"><?=format_bytes(filesize("{$iprep_path}{$file}")); ?> </td>
							<td class="list"><input type="image" name="iplist_edit[]" id="iplist_edit[]" 
							onClick="document.getElementById('iplist_fname').value='<?=$file;?>';" 
							src="../themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" 
							height="17" border="0" title="<?php echo gettext('Edit this IP List');?>"/>
							<input type="image" name="iplist_delete[]" id="iplist_delete[]" 
							onClick="document.getElementById('iplist_fname').value='<?=$file;?>'; 
							return confirm('<?=gettext("Are you sure you want to permanently delete this IP List file?  Click OK to continue or CANCEL to quit.");?>');" 
							src="../themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" 
							height="17" border="0" title="<?php echo gettext('Delete this IP List');?>"/></td>
						</tr>
					<?php endforeach; ?>
						<tbody id="iplist_editor" style="<?=$iplist_edit_style;?>">
						<tr>
							<td colspan="4">&nbsp;</td>
						</tr>
						<tr>
							<td colspan="4"><strong><?=gettext("File Name: ");?></strong><input type="text" size="45" class="formfld file" id="iplist_name" name="iplist_name" value="<?=$iplist_name;?>" />
							&nbsp;&nbsp;<input type="submit" id="iplist_edit_save" name="iplist_edit_save" value="<?=gettext(" Save ");?>" title="<?=gettext("Save changes and close editor");?>" />
							&nbsp;&nbsp;<input type="button" id="cancel" name="cancel" value="<?=gettext("Cancel");?>" onClick="document.getElementById('iplist_editor').style.display='none';"  
							title="<?=gettext("Abandon changes and quit editor");?>" /></td>
						</tr>
						<tr>
							<td colspan="4">&nbsp;</td>
						</tr>
						<tr>
							<td colspan="4"><textarea wrap="off" cols="80" rows="20" name="iplist_data" id="iplist_data" 
							style="width:95%; height:100%;"><?=$iplist_data;?></textarea>
							</td>
						</tr>
						</tbody>
						<tbody>
						<tr>
							<td colspan="3" class="vexpl"><br/><span class="red"><strong><?php echo gettext("Notes:"); ?></strong></span>
							<br/><?php echo gettext("1. A Categories file is required and contains CSV fields for Category Number, Short Name " . 
							"and Description per line."); ?></td>
							<td class="list"></td>
						</tr>
						<tr>
							<td colspan="3" class="vexpl"><?php echo gettext("2. IP Lists are CSV format text files " . 
							"with an IP address, category code and reputation score per line."); ?></td>
							<td class="list"></td>
						</tr>
						<tr>
							<td colspan="3" class="vexpl"><?php echo gettext("3. IP Lists are stored as local files " . 
							"on the firewall and their contents are not saved as part of the firewall configuration file."); ?></td>
							<td class="list"></td>
						</tr>
						<tr>
							<td colspan="3" class="vexpl"><?php echo gettext("4.  Visit ") . 
							"<a href='https://redmine.openinfosecfoundation.org/projects/suricata/wiki/IPReputationFormat' target='_blank'>" . 
							gettext("https://redmine.openinfosecfoundation.org/projects/suricata/wiki/IPReputationFormat") . "</a>" . 
							gettext(" for IP Reputation file formats."); ?><br/></td>
							<td class="list"></td>
						</tr>
						<tr>
							<td colspan="3" class="vexpl"><br/><strong><?php echo gettext("IP List Controls:"); ?></strong><br/><br/>
							&nbsp;&nbsp;<img src="../themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0" />
							&nbsp;<?=gettext("Opens the editor window to create a new IP List.  You must provide a valid filename before saving.");?><br/>
							&nbsp;&nbsp;<img src="../themes/<?= $g['theme']; ?>/images/icons/icon_import_alias.gif" width="17" height="17" border="0" />
							&nbsp;<?=gettext("Opens the file upload control for uploading a new IP List from your local machine.");?><br/>
							&nbsp;&nbsp;<img src="../themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0" />
							&nbsp;<?=gettext("Opens the IP List in a text edit control for viewing or editing its contents.");?><br/>
							&nbsp;&nbsp;<img src="../themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0" />
							&nbsp;<?=gettext("Deletes the IP List from the file system after confirmation.");?></td>
							<td class="list"></td>
						</tr>
						</tbody>
					</table>
				</td>
			</tr>
		<?php endif; ?>
			</tbody>
		</table>
	</div>
	</td>
</tr>
</tbody>
</table>
</form>
<?php include("fend.inc"); ?>

<script language="JavaScript">
<!--

function IQRisk_enablechange() {
	var endis = !(document.iform.et_iqrisk_enable.checked);
	if (endis)
		document.getElementById("iqrisk_code_tbl").style.display = "none";
	else
		document.getElementById("iqrisk_code_tbl").style.display = "table";
}

// Initialize the form controls state based on saved settings
IQRisk_enablechange();

//-->
</script>
</body>
</html>