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<?php
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/*
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$Id$
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part of m0n0wall (http://m0n0.ch/wall)
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Copyrigth (C) 2009 Ermal Lu?i
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Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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pfSense_MODULE: captiveportal
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*/
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require_once("auth.inc");
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require_once("functions.inc");
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require_once("captiveportal.inc");
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$errormsg = "Invalid credentials specified.";
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header("Expires: 0");
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header("Cache-Control: no-store, no-cache, must-revalidate");
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header("Cache-Control: post-check=0, pre-check=0", false);
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header("Pragma: no-cache");
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header("Connection: close");
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$cpzone = $_REQUEST['zone'];
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$cpcfg = $config['captiveportal'][$cpzone];
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$orig_host = $_ENV['HTTP_HOST'];
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/* NOTE: IE 8/9 is buggy and that is why this is needed */
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$orig_request = trim($_REQUEST['redirurl'], " /");
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$clientip = $_SERVER['REMOTE_ADDR'];
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if (!$clientip) {
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/* not good - bail out */
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log_error("Captive portal could not determine client's IP address.");
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$error_message = "An error occurred. Please check the system logs for more information.";
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portal_reply_page($redirurl, "error", $errormsg);
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exit;
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}
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$listenporthttps = $cpcfg['listenporthttps'] ? $cpcfg['listenporthttps'] : ($cpcfg['zoneid'] + 1);
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$listenporthttp = $cpcfg['listenporthttp'] ? $cpcfg['listenporthttp'] : $cpcfg['zoneid'];
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if (isset($config['captiveportal'][$cpzone]['httpslogin']))
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$ourhostname = $config['captiveportal'][$cpzone]['httpsname'] . ":" . $listenporthttps;
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else {
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$ifip = portal_ip_from_client_ip($clientip);
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if (!$ifip)
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$ourhostname = "{$config['system']['hostname']}.{$config['system']['domain']}:{$listenporthttp}";
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else
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$ourhostname = "{$ifip}:{$listenporthttp}";
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}
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if ($orig_host != $ourhostname) {
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/* the client thinks it's connected to the desired web server, but instead
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it's connected to us. Issue a redirect... */
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if (isset($config['captiveportal'][$cpzone]['httpslogin']))
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header("Location: https://{$ourhostname}/index.php?zone={$cpzone}&redirurl=" . urlencode("http://{$orig_host}{$orig_request}"));
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else
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header("Location: http://{$ourhostname}/index.php?zone={$cpzone}&redirurl=" . urlencode("http://{$orig_host}{$orig_request}"));
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exit;
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}
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if (!empty($config['captiveportal'][$cpzone]['redirurl']))
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$redirurl = $config['captiveportal'][$cpzone]['redirurl'];
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else if (preg_match("/redirurl=(.*)/", $orig_request, $matches))
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$redirurl = urldecode($matches[1]);
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else if ($_REQUEST['redirurl'])
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$redirurl = $_REQUEST['redirurl'];
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$macfilter = !isset($config['captiveportal'][$cpzone]['nomacfilter']);
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$passthrumac = isset($config['captiveportal'][$cpzone]['passthrumacadd']);
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/* find MAC address for client */
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if ($macfilter || $passthrumac)
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$clientmac = arp_get_mac_by_ip($clientip);
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if (!$clientmac && ($macfilter || $passthrumac)) {
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/* unable to find MAC address - shouldn't happen! - bail out */
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captiveportal_logportalauth("unauthenticated","noclientmac",$clientip,"ERROR");
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echo "An error occurred. Please check the system logs for more information.";
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log_error("Captive portal could not determine client's MAC address. Disable MAC address filtering in captive portal if you do not need this functionality.");
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exit;
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}
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/* find out if we need RADIUS + RADIUSMAC or not */
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if (file_exists("{$g['vardb_path']}/captiveportal_radius_{$cpzone}.db")) {
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$radius_enable = TRUE;
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if (isset($config['captiveportal'][$cpzone]['radmac_enable']))
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$radmac_enable = TRUE;
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}
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/* find radius context */
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$radiusctx = 'first';
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if ($_POST['auth_user2'])
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$radiusctx = 'second';
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if ($_POST['logout_id']) {
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echo <<<EOD
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<HTML>
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<HEAD><TITLE>Disconnecting...</TITLE></HEAD>
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<BODY BGCOLOR="#435370">
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<SPAN STYLE="color: #ffffff; font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">
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<B>You have been disconnected.</B>
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</SPAN>
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<SCRIPT LANGUAGE="JavaScript">
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<!--
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setTimeout('window.close();',5000) ;
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-->
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</SCRIPT>
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</BODY>
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</HTML>
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EOD;
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captiveportal_disconnect_client($_POST['logout_id']);
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exit;
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} else if ($clientmac && $radmac_enable && portal_mac_radius($clientmac,$clientip, $radiusctx)) {
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/* radius functions handle everything so we exit here since we're done */
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exit;
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} else if (portal_consume_passthrough_credit($clientmac)) {
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/* allow the client through if it had a pass-through credit for its MAC */
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captiveportal_logportalauth("unauthenticated",$clientmac,$clientip,"ACCEPT");
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portal_allow($clientip, $clientmac, "unauthenticated");
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} else if (isset($config['voucher'][$cpzone]['enable']) && $_POST['accept'] && $_POST['auth_voucher']) {
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$voucher = trim($_POST['auth_voucher']);
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$timecredit = voucher_auth($voucher);
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// $timecredit contains either a credit in minutes or an error message
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if ($timecredit > 0) { // voucher is valid. Remaining minutes returned
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// if multiple vouchers given, use the first as username
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$a_vouchers = preg_split("/[\t\n\r ]+/s",$voucher);
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$voucher = $a_vouchers[0];
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$attr = array( 'voucher' => 1,
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'session_timeout' => $timecredit*60,
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'session_terminate_time' => 0);
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if (portal_allow($clientip, $clientmac,$voucher,null,$attr)) {
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// YES: user is good for $timecredit minutes.
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captiveportal_logportalauth($voucher,$clientmac,$clientip,"Voucher login good for $timecredit min.");
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} else {
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portal_reply_page($redirurl, "error", $config['voucher'][$cpzone]['msgexpired'] ? $config['voucher'][$cpzone]['msgexpired']: $errormsg);
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}
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} else if (-1 == $timecredit) { // valid but expired
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captiveportal_logportalauth($voucher,$clientmac,$clientip,"FAILURE","voucher expired");
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portal_reply_page($redirurl, "error", $config['voucher'][$cpzone]['msgexpired'] ? $config['voucher'][$cpzone]['msgexpired']: $errormsg);
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} else {
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captiveportal_logportalauth($voucher,$clientmac,$clientip,"FAILURE");
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portal_reply_page($redirurl, "error", $config['voucher'][$cpzone]['msgnoaccess'] ? $config['voucher'][$cpzone]['msgnoaccess'] : $errormsg);
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}
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} else if ($_POST['accept'] && $radius_enable) {
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if (($_POST['auth_user'] && $_POST['auth_pass']) || ($_POST['auth_user2'] && $_POST['auth_pass2'])) {
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if (!empty($_POST['auth_user'])) {
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$user = $_POST['auth_user'];
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$paswd = $_POST['auth_pass'];
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} else if (!empty($_POST['auth_user2'])) {
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$user = $_POST['auth_user2'];
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$paswd = $_POST['auth_pass2'];
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}
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$auth_list = radius($user,$paswd,$clientip,$clientmac,"USER LOGIN", $radiusctx);
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$type = "error";
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if (!empty($auth_list['url_redirection'])) {
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$redirurl = $auth_list['url_redirection'];
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$type = "redir";
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}
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if ($auth_list['auth_val'] == 1) {
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captiveportal_logportalauth($user,$clientmac,$clientip,"ERROR",$auth_list['error']);
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portal_reply_page($redirurl, $type, $auth_list['error'] ? $auth_list['error'] : $errormsg);
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}
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else if ($auth_list['auth_val'] == 3) {
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captiveportal_logportalauth($user,$clientmac,$clientip,"FAILURE",$auth_list['reply_message']);
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portal_reply_page($redirurl, $type, $auth_list['reply_message'] ? $auth_list['reply_message'] : $errormsg);
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}
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} else {
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if (!empty($_POST['auth_user']))
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$user = $_POST['auth_user'];
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else if (!empty($_POST['auth_user2']))
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$user = $_POST['auth_user2'];
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else
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$user = 'unknown';
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captiveportal_logportalauth($user ,$clientmac,$clientip,"ERROR");
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portal_reply_page($redirurl, "error", $errormsg);
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}
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} else if ($_POST['accept'] && $config['captiveportal'][$cpzone]['auth_method'] == "local") {
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if ($_POST['auth_user'] && $_POST['auth_pass']) {
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//check against local user manager
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$loginok = local_backed($_POST['auth_user'], $_POST['auth_pass']);
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if ($loginok){
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captiveportal_logportalauth($_POST['auth_user'],$clientmac,$clientip,"LOGIN");
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portal_allow($clientip, $clientmac,$_POST['auth_user']);
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} else {
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captiveportal_logportalauth($_POST['auth_user'],$clientmac,$clientip,"FAILURE");
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portal_reply_page($redirurl, "error", $errormsg);
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}
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} else
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portal_reply_page($redirurl, "error", $errormsg);
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} else if ($_POST['accept'] && $clientip && $config['captiveportal'][$cpzone]['auth_method'] == "none") {
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captiveportal_logportalauth("unauthenticated",$clientmac,$clientip,"ACCEPT");
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portal_allow($clientip, $clientmac, "unauthenticated");
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} else {
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/* display captive portal page */
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portal_reply_page($redirurl, "login",null,$clientmac,$clientip);
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}
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exit;
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?>
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