pfSense

<?php

/*

	system_crlmanager.php

*/

/* ====================================================================

 *	Copyright (c)  2004-2015  Electric Sheep Fencing, LLC. 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.

 *

 *	3. All advertising materials mentioning features or use of this software

 *		must display the following acknowledgment:

 *		"This product includes software developed by the pfSense Project

 *		 for use in the pfSense software distribution. (http://www.pfsense.org/).

 *

 *	4. The names "pfSense" and "pfSense Project" must not be used to

 *		 endorse or promote products derived from this software without

 *		 prior written permission. For written permission, please contact

 *		 coreteam@pfsense.org.

 *

 *	5. Products derived from this software may not be called "pfSense"

 *		nor may "pfSense" appear in their names without prior written

 *		permission of the Electric Sheep Fencing, LLC.

 *

 *	6. Redistributions of any form whatsoever must retain the following

 *		acknowledgment:

 *

 *	"This product includes software developed by the pfSense Project

 *	for use in the pfSense software distribution (http://www.pfsense.org/).

 *

 *	THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY

 *	EXPRESSED 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 pfSense PROJECT OR

 *	ITS CONTRIBUTORS 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.

 *

 *	====================================================================

 *

 */

/*

	pfSense_MODULE: certificate_manager

*/

##|+PRIV

##|*IDENT=page-system-crlmanager

##|*NAME=System: CRL Manager

##|*DESCR=Allow access to the 'System: CRL Manager' page.

##|*MATCH=system_crlmanager.php*

##|-PRIV

require("guiconfig.inc");

require_once("certs.inc");

require_once("openvpn.inc");

require_once("vpn.inc");

global $openssl_crl_status;

$pgtitle = array(gettext("System"), gettext("Certificate Manager"), gettext("Certificate Revocation Lists"));

$crl_methods = array(

	"internal" => gettext("Create an internal Certificate Revocation List"),

	"existing" => gettext("Import an existing Certificate Revocation List"));

if (ctype_alnum($_GET['id'])) {

	$id = $_GET['id'];

}

if (isset($_POST['id']) && ctype_alnum($_POST['id'])) {

	$id = $_POST['id'];

}

if (!is_array($config['ca'])) {

	$config['ca'] = array();

}

$a_ca =& $config['ca'];

if (!is_array($config['cert'])) {

	$config['cert'] = array();

}

$a_cert =& $config['cert'];

if (!is_array($config['crl'])) {

	$config['crl'] = array();

}

$a_crl =& $config['crl'];

foreach ($a_crl as $cid => $acrl) {

	if (!isset($acrl['refid'])) {

		unset ($a_crl[$cid]);

	}

}

$act = $_GET['act'];

if ($_POST['act']) {

	$act = $_POST['act'];

}

if (!empty($id)) {

	$thiscrl =& lookup_crl($id);

}

// If we were given an invalid crlref in the id, no sense in continuing as it would only cause errors.

if (!$thiscrl && (($act != "") && ($act != "new"))) {

	pfSenseHeader("system_crlmanager.php");

	$act="";

	$savemsg = gettext("Invalid CRL reference.");

}

if ($act == "del") {

	$name = htmlspecialchars($thiscrl['descr']);

	if (crl_in_use($id)) {

		$savemsg = sprintf(gettext("Certificate Revocation List %s is in use and cannot be deleted"), $name) . "<br />";

	} else {

		foreach ($a_crl as $cid => $acrl) {

			if ($acrl['refid'] == $thiscrl['refid']) {

				unset($a_crl[$cid]);

			}

		}

		write_config("Deleted CRL {$name}.");

		$savemsg = sprintf(gettext("Certificate Revocation List %s successfully deleted"), $name) . "<br />";

	}

}

if ($act == "new") {

	$pconfig['method'] = $_GET['method'];

	$pconfig['caref'] = $_GET['caref'];

	$pconfig['lifetime'] = "9999";

	$pconfig['serial'] = "0";

}

if ($act == "exp") {

	crl_update($thiscrl);

	$exp_name = urlencode("{$thiscrl['descr']}.crl");

	$exp_data = base64_decode($thiscrl['text']);

	$exp_size = strlen($exp_data);

	header("Content-Type: application/octet-stream");

	header("Content-Disposition: attachment; filename={$exp_name}");

	header("Content-Length: $exp_size");

	echo $exp_data;

	exit;

}

if ($act == "addcert") {

	if ($_POST) {

		unset($input_errors);

		$pconfig = $_POST;

		if (!$pconfig['crlref'] || !$pconfig['certref']) {

			pfSenseHeader("system_crlmanager.php");

			exit;

		}

		// certref, crlref

		$crl =& lookup_crl($pconfig['crlref']);

		$cert = lookup_cert($pconfig['certref']);

		if (!$crl['caref'] || !$cert['caref']) {

			$input_errors[] = gettext("Both the Certificate and CRL must be specified.");

		}

		if ($crl['caref'] != $cert['caref']) {

			$input_errors[] = gettext("CA mismatch between the Certificate and CRL. Unable to Revoke.");

		}

		if (!is_crl_internal($crl)) {

			$input_errors[] = gettext("Cannot revoke certificates for an imported/external CRL.");

		}

		if (!$input_errors) {

			$reason = (empty($pconfig['crlreason'])) ? OCSP_REVOKED_STATUS_UNSPECIFIED : $pconfig['crlreason'];

			cert_revoke($cert, $crl, $reason);

			// refresh IPsec and OpenVPN CRLs

			openvpn_refresh_crls();

			vpn_ipsec_configure();

			write_config("Revoked cert {$cert['descr']} in CRL {$crl['descr']}.");

			pfSenseHeader("system_crlmanager.php");

			exit;

		}

	}

}

if ($act == "delcert") {

	if (!is_array($thiscrl['cert'])) {

		pfSenseHeader("system_crlmanager.php");

		exit;

	}

	$found = false;

	foreach ($thiscrl['cert'] as $acert) {

		if ($acert['refid'] == $_GET['certref']) {

			$found = true;

			$thiscert = $acert;

		}

	}

	if (!$found) {

		pfSenseHeader("system_crlmanager.php");

		exit;

	}

	$certname = htmlspecialchars($thiscert['descr']);

	$crlname = htmlspecialchars($thiscrl['descr']);

	if (cert_unrevoke($thiscert, $thiscrl)) {

		$savemsg = sprintf(gettext("Deleted Certificate %s from CRL %s"), $certname, $crlname) . "<br />";

		// refresh IPsec and OpenVPN CRLs

		openvpn_refresh_crls();

		vpn_ipsec_configure();

		write_config(sprintf(gettext("Deleted Certificate %s from CRL %s"), $certname, $crlname));

	} else {

		$savemsg = sprintf(gettext("Failed to delete Certificate %s from CRL %s"), $certname, $crlname) . "<br />";

	}

	$act="edit";

}

if ($_POST) {

	$input_errors = array();

	$pconfig = $_POST;

	/* input validation */

	if (($pconfig['method'] == "existing") || ($act == "editimported")) {

		$reqdfields = explode(" ", "descr crltext");

		$reqdfieldsn = array(

			gettext("Descriptive name"),

			gettext("Certificate Revocation List data"));

	}

	if ($pconfig['method'] == "internal") {

		$reqdfields = explode(" ", "descr caref");

		$reqdfieldsn = array(

			gettext("Descriptive name"),

			gettext("Certificate Authority"));

	}

	do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

	if (preg_match("/[\?\>\<\&\/\\\"\']/", $pconfig['descr'])) {

		array_push($input_errors, "The field 'Descriptive Name' contains invalid characters.");

	}

	/* if this is an AJAX caller then handle via JSON */

	if (isAjax() && is_array($input_errors)) {

		input_errors2Ajax($input_errors);

		exit;

	}

	/* save modifications */

	if (!$input_errors) {

		$result = false;

		if ($thiscrl) {

			$crl =& $thiscrl;

		} else {

			$crl = array();

			$crl['refid'] = uniqid();

		}

		$crl['descr'] = $pconfig['descr'];

		if ($act != "editimported") {

			$crl['caref'] = $pconfig['caref'];

			$crl['method'] = $pconfig['method'];

		}

		if (($pconfig['method'] == "existing") || ($act == "editimported")) {

			$crl['text'] = base64_encode($pconfig['crltext']);

		}

		if ($pconfig['method'] == "internal") {

			$crl['serial'] = empty($pconfig['serial']) ? 9999 : $pconfig['serial'];

			$crl['lifetime'] = empty($pconfig['lifetime']) ? 9999 : $pconfig['lifetime'];

			$crl['cert'] = array();

		}

		if (!$thiscrl) {

			$a_crl[] = $crl;

		}

		write_config("Saved CRL {$crl['descr']}");

		// refresh IPsec and OpenVPN CRLs

		openvpn_refresh_crls();

		vpn_ipsec_configure();

		pfSenseHeader("system_crlmanager.php");

	}

}

include("head.inc");

?>

<script type="text/javascript">

//<![CDATA[

function method_change() {

	method = document.iform.method.value;

	switch (method) {

		case "internal":

			document.getElementById("existing").style.display="none";

			document.getElementById("internal").style.display="";

			break;

		case "existing":

			document.getElementById("existing").style.display="";

			document.getElementById("internal").style.display="none";

			break;

	}

}

//]]>

</script>

<?php

function build_method_list() {

	global $_GET, $crl_methods;

	$list = array();

	foreach($crl_methods as $method => $desc) {

		if (($_GET['importonly'] == "yes") && ($method != "existing"))

			continue;

		$list[$method] = $desc;

	}

	return($list);

}

function build_ca_list() {

	global $a_ca;

	$list = array();

	foreach($a_ca as $ca)

		$list[$ca['refid']] = $ca['descr'];

	return($list);

}

function build_cacert_list() {

	global $ca_certs;

	$list = array();

	foreach($ca_certs as $cert)

		$list[$cert['refid']] = $cert['descr'];

	return($list);

}

if ($input_errors)

	print_input_errors($input_errors);

if ($savemsg)

	print_info_box($savemsg, 'sucess');

$tab_array = array();

$tab_array[] = array(gettext("CAs"), false, "system_camanager.php");

$tab_array[] = array(gettext("Certificates"), false, "system_certmanager.php");

$tab_array[] = array(gettext("Certificate Revocation"), true, "system_crlmanager.php");

display_top_tabs($tab_array);

if ($act == "new" || $act == gettext("Save") || $input_errors) {

	if (!isset($id)) {

		$form = new Form();

		$section = new Form_Section('Create new revocation list');

		$section->addInput(new Form_Select(

			'method',

			'Method',

			$pconfig['method'],

			build_method_list()

		));

	}

	$section->addInput(new Form_Input(

		'descr',

		'Descriptive name',

		'text',

		$pconfig['descr']

	));

	$section->addInput(new Form_Select(

		'caref',

		'Certificate Authority',

		$pconfig['caref'],

		build_ca_list()

	));

	$form->add($section);

	$section = new Form_Section('Existing Certificate Revocation List');

	$section->addClass('existing');

	$section->addInput(new Form_Textarea(

		'crltext',

		'CRL data',

		$pconfig['crltext']

		))->setHelp('Paste a Certificate Revocation List in X.509 CRL format here.');

	$form->add($section);

	$section = new Form_Section('Internal Certificate Revocation List');

	$section->addClass('internal');

	$section->addInput(new Form_Input(

		'lifetime',

		'Lifetime (Days)',

		'number',

		$pconfig['lifetime'],

		[max => '9999']

	));

	$section->addInput(new Form_Input(

		'serial',

		'Serial',

		'number',

		$pconfig['serial'],

		[min => '0', max => '9999']

	));

	$form->add($section);

	if (isset($id) && $thiscrl) {

		$section->addInput(new Form_Input(

			'id',

			null,

			'hidden',

			$id

		));

	}

	print($form);

} elseif ($act == "editimported") {

	$form = new Form();

	$section = new Form_Section('Edit Imported Certificate Revocation List');

	$section->addInput(new Form_Input(

		'descr',

		'Descriptive name',

		'text',

		$pconfig['descr']

	));

	$section->addInput(new Form_Textarea(

		'crltext',

		'CRL data',

		$pconfig['crltext']

	))->setHelp('Paste a Certificate Revocation List in X.509 CRL format here.');

	$section->addInput(new Form_Input(

		'id',

		null,

		'hidden',

		$id

	));

	$section->addInput(new Form_Input(

		'act',

		null,

		'hidden',

		'editimported'

	));

	$form->add($section);

	print($form);

} elseif ($act == "edit") {

	$crl = $thiscrl;

	$form = new Form(false);

?>

	<div class="panel panel-default">

		<div class="panel-heading"><h2 class="panel-title"><?=gettext("Currently Revoked Certificates for CRL") . ': ' . $crl['descr']?></h2></div>

		<div class="panel-body table-responsive">

<?php

	if (!is_array($crl['cert']) || (count($crl['cert']) == 0))

		print_info_box(gettext("No Certificates Found for this CRL."), 'danger');

	else {

?>

			<table class="table table-striped table-hover table-condensed">

				<thead>

					<tr>

						<th><?=gettext("Certificate Name")?></th>

						<th><?=gettext("Revocation Reason")?></th>

						<th><?=gettext("Revoked At")?></th>

						<th></th>

					</tr>

				</thead>

				<tbody>

<?php

		foreach($crl['cert'] as $i => $cert):

			$name = htmlspecialchars($cert['descr']);

?>

					<tr>

						<td class="listlr">

							<?=$name; ?>

						</td>

						<td class="listlr">

							<?=$openssl_crl_status[$cert["reason"]]; ?>

						</td>

						<td class="listlr">

							<?=date("D M j G:i:s T Y", $cert["revoke_time"]); ?>

						</td>

						<td class="list">

							<a href="system_crlmanager.php?act=delcert&amp;id=<?=$crl['refid']; ?>&amp;certref=<?=$cert['refid']; ?>" onclick="return confirm('<?=gettext("Do you really want to delete this Certificate from the CRL?")?>')">

								<i class="fa fa-times-circle" title="<?=gettext("Delete this certificate from the CRL ")?>" alt="<?=gettext("Delete this certificate from the CRL ")?>"></i>

							</a>

						</td>

					</tr>

<?php

		endforeach;

?>

				</tbody>

			</table>

<?php } ?>

		</div>

	</div>

<?php

	$ca_certs = array();

	foreach($a_cert as $cert)

		if ($cert['caref'] == $crl['caref'])

			$ca_certs[] = $cert;

	if (count($ca_certs) == 0)

		print_info_box(gettext("No Certificates Found for this CA."), 'danger');

	else

	$section = new Form_Section('Choose a certificate to revoke');

	$group = new Form_Group(null);

	$group->add(new Form_Select(

		'certref',

		null,

		$pconfig['certref'],

		build_cacert_list()

		))->setWidth(4)->setHelp('Certificate');

	$group->add(new Form_Select(

		'crlreason',

		null,

		-1,

		$openssl_crl_status

		))->setHelp('Reason');

	$group->add(new Form_Button(

		'submit',

		'Add'

		))->removeClass('btn-primary')->addClass('btn-success btn-sm');

	$section->add($group);

	$section->addInput(new Form_Input(

		'id',

		null,

		'hidden',

		$crl['refid']

	));

	$section->addInput(new Form_Input(

		'act',

		null,

		'hidden',

		'addcert'

	));

	$section->addInput(new Form_Input(

		'crlref',

		null,

		'hidden',

		$crl['refid']

	));

	$form->add($section);

	print($form);

} else {

?>

	<div class="panel panel-default">

		<div class="panel-heading"><h2 class="panel-title"><?=gettext("Additional Certificate Revocation Lists")?></h2></div>

		<div class="panel-body table-responsive">

			<table class="table table-striped table-hover table-condensed">

				<thead>

					<tr>

						<th><?=gettext("Name")?></th>

						<th><?=gettext("Internal")?></th>

						<th><?=gettext("Certificates")?></th>

						<th><?=gettext("In Use")?></th>

						<th></th>

					</tr>

				</thead>

				<tbody>

<?php

	// Map CRLs to CAs in one pass

	$ca_crl_map = array();

	foreach($a_crl as $crl)

		$ca_crl_map[$crl['caref']][] = $crl['refid'];

	$i = 0;

	foreach($a_ca as $ca):

		$name = htmlspecialchars($ca['descr']);

		if($ca['prv']) {

			$cainternal = "YES";

		} else

			$cainternal = "NO";

?>

					<tr>

						<td colspan="4">

							<?=$name?>

						</td>

						<td>

<?php

		if ($cainternal == "YES"): ?>

							<a href="system_crlmanager.php?act=new&amp;caref=<?=$ca['refid']; ?>" class="btn btn-xs btn-success">

								<?=gettext("Add or Import CRL")?>

							</a>

<?php

		else: ?>

							<a href="system_crlmanager.php?act=new&amp;caref=<?=$ca['refid']; ?>&amp;importonly=yes" class="btn btn-xs btn-success">

								<?=gettext("Add or Import CRL")?>

							</a>

<?php

		endif; ?>

						</td>

					</tr>

<?php

		if (is_array($ca_crl_map[$ca['refid']])):

			foreach($ca_crl_map[$ca['refid']] as $crl):

				$tmpcrl = lookup_crl($crl);

				$internal = is_crl_internal($tmpcrl);

				$inuse = crl_in_use($tmpcrl['refid']);

?>

					<tr>

						<td><?=$tmpcrl['descr']; ?></td>

						<td><?=($internal) ? "YES" : "NO"; ?></td>

						<td><?=($internal) ? count($tmpcrl['cert']) : "Unknown (imported)"; ?></td>

						<td><?=($inuse) ? "YES" : "NO"; ?></td>

						<td>

							<a href="system_crlmanager.php?act=exp&amp;id=<?=$tmpcrl['refid']?>" class="btn btn-xs btn-success">

								<?=gettext("Export CRL")?>

							</a>

<?php

				if ($internal): ?>

							<a href="system_crlmanager.php?act=edit&amp;id=<?=$tmpcrl['refid']?>" class="btn btn-xs btn-info">

								<?=gettext("Edit CRL")?>

							</a>

<?php

				else: ?>

							<a href="system_crlmanager.php?act=editimported&amp;id=<?=$tmpcrl['refid']?>" class="btn btn-xs btn-info">

								<?=gettext("Edit CRL")?>

							</a>

<?php			endif;

				if (!$inuse): ?>

							<a href="system_crlmanager.php?act=del&amp;id=<?=$tmpcrl['refid']?>" class="btn btn-xs btn-danger">

								<?=gettext("Delete CRL")?>

							</a>

<?php

				endif; ?>

						</td>

					</tr>

<?php

				$i++;

				endforeach;

			endif;

			$i++;

		endforeach;

?>

				</tbody>

			</table>

		</div>

	</div>

<?php

}

?>

<script>

//<![CDATA[

events.push(function(){

	// Hides all elements of the specified class. This will usually be a section or group

	function hideClass(s_class, hide) {

		if(hide)

			$('.' + s_class).hide();

		else

			$('.' + s_class).show();

	}

	// When the 'method" selector is changed, we show/hide certain sections

	$('#method').on('change', function() {

		hideClass('internal', ($('#method').val() == 'existing'));

		hideClass('existing', ($('#method').val() == 'internal'));

	});

	hideClass('internal', ($('#method').val() == 'existing'));

	hideClass('existing', ($('#method').val() == 'internal'));

});

//]]>

</script>

<?php include("foot.inc");