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<?php
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/*
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* index.php
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
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* All rights reserved.
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*
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* Originally part of m0n0wall (http://m0n0.ch/wall)
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* Copyright (c) 2003-2006 Manuel Kasper <mk@neon1.net>.
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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-cache, no-store, must-revalidate");
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header("Pragma: no-cache");
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header("Connection: close");
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global $cpzone, $cpzoneid;
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$cpzone = strtolower($_REQUEST['zone']);
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$cpcfg = $config['captiveportal'][$cpzone];
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if (empty($cpcfg)) {
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log_error("Submission to captiveportal with unknown parameter zone: " . htmlspecialchars($cpzone));
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portal_reply_page($redirurl, "error", $errormsg);
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ob_flush();
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return;
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}
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$cpzoneid = $cpcfg['zoneid'];
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$orig_host = $_SERVER['HTTP_HOST'];
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/* NOTE: IE 8/9 is buggy and that is why this is needed */
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$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("Zone: {$cpzone} - Captive portal could not determine client's IP address.");
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$error_message = "An error occurred. Please check the system logs for more information.";
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portal_reply_page($redirurl, "error", $errormsg);
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ob_flush();
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return;
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}
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$cpsession = captiveportal_isip_logged($clientip);
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$ourhostname = portal_hostname_from_client_ip($clientip);
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/* Automatically switching to the logout page requires a custom logout page to be present. */
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if ((!empty($cpsession)) && (! $_POST['logout_id']) && (!empty($cpcfg['page']['logouttext']))) {
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/* if client already logged in so show logout page */
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$protocol = (isset($config['captiveportal'][$cpzone]['httpslogin'])) ? 'https://' : 'http://';
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$logouturl = "{$protocol}{$ourhostname}/";
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$sessionid = $cpsession['sessionid'];
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$attributes = array();
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if (!empty($cpsession['session_timeout']))
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$attributes['session_timeout'] = $cpsession['session_timeout'];
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if (!empty($cpsession['session_terminate_time']))
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$attributes['session_terminate_time'] = $cpsession['session_terminate_time'];
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include("{$g['varetc_path']}/captiveportal-{$cpzone}-logout.html");
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ob_flush();
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return;
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} else if ($orig_host != $ourhostname) {
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/* the client thinks it's connected to the desired web server, but instead
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it's connected to us. Issue a redirect... */
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$protocol = (isset($cpcfg['httpslogin'])) ? 'https://' : 'http://';
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header("Location: {$protocol}{$ourhostname}/index.php?zone={$cpzone}&redirurl=" . urlencode("http://{$orig_host}/{$orig_request}"));
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ob_flush();
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return;
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}
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if (!empty($cpcfg['redirurl'])) {
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$redirurl = $cpcfg['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 = $_REQUEST['redirurl'];
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}
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$macfilter = !isset($cpcfg['nomacfilter']);
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$passthrumac = isset($cpcfg['passthrumacadd']);
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/* find MAC address for client */
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if ($macfilter || $passthrumac) {
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$tmpres = pfSense_ip_to_mac($clientip);
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if (!is_array($tmpres)) {
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/* unable to find MAC address - shouldn't happen! - bail out */
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captiveportal_logportalauth("unauthenticated", "noclientmac", $clientip, "ERROR");
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echo "An error occurred. Please check the system logs for more information.";
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log_error("Zone: {$cpzone} - 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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ob_flush();
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return;
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}
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$clientmac = $tmpres['macaddr'];
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unset($tmpres);
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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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$radius_enable = TRUE;
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if (isset($cpcfg['radmac_enable'])) {
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$radmac_enable = TRUE;
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}
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}
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/* find radius context */
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$radiusctx = 'first';
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if ($_POST['auth_user2']) {
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$radiusctx = 'second';
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}
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if ($_POST['logout_id']) {
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echo <<<EOD
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<html>
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<head><title>Disconnecting...</title></head>
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<body bgcolor="#435370">
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<span style="color: #ffffff; font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">
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<b>You have been disconnected.</b>
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</span>
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<script type="text/javascript">
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<!--
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setTimeout('window.close();',5000) ;
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-->
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</script>
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</body>
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</html>
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EOD;
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$safe_logout_id = SQLite3::escapeString($_POST['logout_id']);
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captiveportal_disconnect_client($safe_logout_id);
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} else if ($macfilter && $clientmac && captiveportal_blocked_mac($clientmac)) {
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captiveportal_logportalauth($clientmac, $clientmac, $clientip, "Blocked MAC address");
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if (!empty($cpcfg['blockedmacsurl'])) {
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portal_reply_page($cpcfg['blockedmacsurl'], "redir");
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} else {
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portal_reply_page($redirurl, "error", "This MAC address has been blocked");
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}
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} else if ($clientmac && $radmac_enable && portal_mac_radius($clientmac, $clientip, $radiusctx)) {
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/* radius functions handle everything so we exit here since we're done */
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} else if (portal_consume_passthrough_credit($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(
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'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]['descrmsgexpired'] ? $config['voucher'][$cpzone]['descrmsgexpired']: $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]['descrmsgexpired'] ? $config['voucher'][$cpzone]['descrmsgexpired']: $errormsg);
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} else {
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captiveportal_logportalauth($voucher, $clientmac, $clientip, "FAILURE");
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portal_reply_page($redirurl, "error", $config['voucher'][$cpzone]['descrmsgnoaccess'] ? $config['voucher'][$cpzone]['descrmsgnoaccess'] : $errormsg);
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}
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} else if ($_POST['accept'] && $radius_enable) {
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if (($_POST['auth_user'] && isset($_POST['auth_pass'])) || ($_POST['auth_user2'] && isset($_POST['auth_pass2']))) {
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if (!empty($_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'] : $errormsg);
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} else if ($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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}
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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'] && $cpcfg['auth_method'] == "local") {
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if ($_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 && isset($cpcfg['localauth_priv'])) {
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$loginok = userHasPrivilege(getUserEntry($_POST['auth_user']), "user-services-captiveportal-login");
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}
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if ($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", $errormsg);
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}
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} else if ($_POST['accept'] && $clientip && $cpcfg['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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ob_flush();
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?>
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