pfSense

<?php

/*

 * system_crlmanager.php

 *

 * part of pfSense (https://www.pfsense.org)

 * Copyright (c) 2004-2019 Rubicon Communications, LLC (Netgate)

 * All rights reserved.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

##|+PRIV

##|*IDENT=page-system-crlmanager

##|*NAME=System: CRL Manager

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

##|*MATCH=system_crlmanager.php*

##|-PRIV

require_once("guiconfig.inc");

require_once("certs.inc");

require_once("openvpn.inc");

require_once("pfsense-utils.inc");

require_once("vpn.inc");

$max_lifetime = crl_get_max_lifetime();

$default_lifetime = 3650;

if ($max_lifetime < $default_lifetime) {

	$default_lifetime = $max_lifetime;

}

global $openssl_crl_status;

$crl_methods = array(

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

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

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

	$id = $_REQUEST['id'];

}

init_config_arr(array('ca'));

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

init_config_arr(array('cert'));

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

init_config_arr(array('crl'));

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

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

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

		unset ($a_crl[$cid]);

	}

}

$act = $_REQUEST['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.");

	$class = "danger";

}

if ($_POST['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);

		$class = "danger";

	} 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);

		$class = "success";

	}

}

if ($act == "new") {

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

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

	$pconfig['lifetime'] = $default_lifetime;

	$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") {

	unset($input_errors);

	$pconfig = $_REQUEST;

	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'])) ? 0 : $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'] == $_REQUEST['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)) {

		$savemsg = sprintf(gettext('Deleted Certificate %1$s from CRL %2$s.'), $certname, $crlname);

		$class = "success";

		// refresh IPsec and OpenVPN CRLs

		openvpn_refresh_crls();

		vpn_ipsec_configure();

		write_config($savemsg);

	} else {

		$savemsg = sprintf(gettext('Failed to delete Certificate %1$s from CRL %2$s.'), $certname, $crlname);

		$class = "danger";

	}

	$act="edit";

}

if ($_POST['save']) {

	$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 ($pconfig['lifetime'] > $max_lifetime) {

		$input_errors[] = gettext("Lifetime is longer than the maximum allowed value. Use a shorter lifetime.");

	}

	/* 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']) ? $default_lifetime : $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");

	}

}

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

$pglinks = array("", "system_camanager.php", "system_crlmanager.php");

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

	$pgtitle[] = gettext('Edit');

	$pglinks[] = "@self";

}

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 $_POST, $crl_methods;

	$list = array();

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

		if (($_POST['importonly'] == "yes") && ($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, $class);

}

$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' => $max_lifetime]

	));

	$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']; ?>" usepost>

								<i class="fa fa-trash" 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'] == $crl['caref'] && !is_cert_revoked($cert, $id)) {

			$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',

			null,

			'fa-plus'

			))->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 table-rowdblclickedit">

				<thead>

					<tr>

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

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

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

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

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

					</tr>

				</thead>

				<tbody>

<?php

	$pluginparams = array();

	$pluginparams['type'] = 'certificates';

	$pluginparams['event'] = 'used_crl';

	$certificates_used_by_packages = pkg_call_plugins('plugin_certificates', $pluginparams);

	// 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">

								<i class="fa fa-plus icon-embed-btn"></i>

								<?=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">

								<i class="fa fa-plus icon-embed-btn"></i>

								<?=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);

				if ($internal && (!isset($tmpcrl['cert']) || empty($tmpcrl['cert'])) ) {

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

				}

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

?>

					<tr>

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

						<td><i class="fa fa-<?=($internal) ? "check" : "times"; ?>"></i></td>

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

						<td><i class="fa fa-<?=($inuse) ? "check" : "times"; ?>"></i>

						<?php echo cert_usedby_description($tmpcrl['refid'], $certificates_used_by_packages); ?>

						</td>

						<td>

							<a href="system_crlmanager.php?act=exp&amp;id=<?=$tmpcrl['refid']?>" class="fa fa-download" title="<?=gettext("Export CRL")?>" ></a>

<?php

				if ($internal): ?>

							<a href="system_crlmanager.php?act=edit&amp;id=<?=$tmpcrl['refid']?>" class="fa fa-pencil" title="<?=gettext("Edit CRL")?>"></a>

<?php

				else:

?>

							<a href="system_crlmanager.php?act=editimported&amp;id=<?=$tmpcrl['refid']?>" class="fa fa-pencil" title="<?=gettext("Edit CRL")?>"></a>

<?php			endif;

				if (!$inuse):

?>

							<a href="system_crlmanager.php?act=del&amp;id=<?=$tmpcrl['refid']?>" class="fa fa-trash" title="<?=gettext("Delete CRL")?>" usepost></a>

<?php

				endif;

?>

						</td>

					</tr>

<?php

				$i++;

				endforeach;

			endif;

			$i++;

		endforeach;

?>

				</tbody>

			</table>

		</div>

	</div>

<?php

}

?>

<script type="text/javascript">

//<![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");