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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) 2004-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2024 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("util.inc");
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require_once("functions.inc");
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require_once("captiveportal.inc");
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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, $cpzoneprefix;
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$cpzone = strtolower($_REQUEST['zone']);
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$cpcfg = config_get_path("captiveportal/{$cpzone}");
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/* NOTE: IE 8/9 is buggy and that is why this is needed */
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$orig_request = trim($_REQUEST['redirurl'], " /");
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/* If the post-auth redirect is set, always use it. Otherwise take what was supplied in URL. */
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if (!empty($cpcfg) && is_URL($cpcfg['redirurl'], true)) {
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$redirurl = $cpcfg['redirurl'];
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} elseif (preg_match("/redirurl=(.*)/", $orig_request, $matches)) {
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$redirurl = urldecode($matches[1]);
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} elseif ($_REQUEST['redirurl']) {
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$redirurl = $_REQUEST['redirurl'];
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}
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/* Sanity check: If the redirect target is not a URL, do not attempt to use it like one. */
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if (!is_URL(urldecode($redirurl), true)) {
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$redirurl = "";
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}
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if (empty($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", gettext("Internal error"));
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ob_flush();
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return;
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}
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$cpzoneid = $cpcfg['zoneid'];
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$cpzoneprefix = CPPREFIX . $cpzoneid;
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$orig_host = $_SERVER['HTTP_HOST'];
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$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: {$cpzone} - Captive portal could not determine client's IP address.");
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$errormsg = gettext("An error occurred. Please check the system logs for more information.");
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portal_reply_page($redirurl, "error", $errormsg);
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ob_flush();
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return;
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}
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$ourhostname = portal_hostname_from_client_ip($clientip);
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$protocol = (isset($config['captiveportal'][$cpzone]['httpslogin'])) ? 'https://' : 'http://';
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$logouturl = "{$protocol}{$ourhostname}/";
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$cpsession = captiveportal_isip_logged($clientip);
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if (!empty($cpsession)) {
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$sessionid = $cpsession['sessionid'];
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}
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/* Automatically switching to the logout page requires a custom logout page to be present. */
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if ((!empty($cpsession)) && (! $_POST['logout_id']) && (!empty($cpcfg['page']['logouttext']))) {
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/* if client already connected and a custom logout page is set : show logout page */
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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-{$cpzone}-logout.html");
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ob_flush();
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return;
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} elseif (!empty($cpsession) && !isset($_POST['logout_id'])) {
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/* If the client tries to access the captive portal page while already connected,
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but no custom logout page exists */
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$logo_src = get_captive_portal_logo();
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$bg_src = get_captive_portal_bg();
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?>
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
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<title>Captive Portal</title>
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<style>
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#content,.login,.login-card a,.login-card h1,.login-help{text-align:center}body,html{margin:0;padding:0;width:100%;height:100%;display:table}#content{font-family:'Source Sans Pro',sans-serif;background-color:#1C1275;background:<?= $bg_src ?>;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;display:table-cell;vertical-align:middle}.login-card{padding:40px;width:280px;background-color:#F7F7F7;margin:100px auto 10px;border-radius:2px;box-shadow:0 2px 2px rgba(0,0,0,.3);overflow:hidden}.login-card h1{font-weight:400;font-size:2.3em;color:#1383c6}.login-card h1 span{color:#f26721}.login-card img{width:70%;height:70%}.login-card input[type=submit]{width:100%;display:block;margin-bottom:10px;position:relative}.login-card input[type=text],input[type=password]{height:44px;font-size:16px;width:100%;margin-bottom:10px;-webkit-appearance:none;background:#fff;border:1px solid #d9d9d9;border-top:1px solid silver;padding:0 8px;box-sizing:border-box;-moz-box-sizing:border-box}.login-card input[type=text]:hover,input[type=password]:hover{border:1px solid #b9b9b9;border-top:1px solid #a0a0a0;-moz-box-shadow:inset 0 1px 2px rgba(0,0,0,.1);-webkit-box-shadow:inset 0 1px 2px rgba(0,0,0,.1);box-shadow:inset 0 1px 2px rgba(0,0,0,.1)}.login{font-size:14px;font-family:Arial,sans-serif;font-weight:700;height:36px;padding:0 8px}.login-submit{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;color:#fff;text-shadow:0 1px rgba(0,0,0,.1);background-color:#4d90fe}.login-submit:disabled{opacity:.6}.login-submit:hover{border:0;text-shadow:0 1px rgba(0,0,0,.3);background-color:#357ae8}.login-card a{text-decoration:none;color:#222;font-weight:400;display:inline-block;opacity:.6;transition:opacity ease .5s}.login-card a:hover{opacity:1}.login-help{width:100%;font-size:12px}.list{list-style-type:none;padding:0}.list__item{margin:0 0 .7rem;padding:0}label{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;text-align:left;font-size:14px;}input[type=checkbox]{-webkit-box-flex:0;-webkit-flex:none;-ms-flex:none;flex:none;margin-right:10px;float:left}@media screen and (max-width:450px){.login-card{width:70%!important}.login-card img{width:30%;height:30%}}textarea{width:66%;margin:auto;height:120px;max-height:120px;background-color:#f7f7f7;padding:20px}#terms{display:none;padding-top:100px;padding-bottom:300px;}.auth_source{border: 1px solid lightgray; padding:20px 8px 0px 8px; margin-top: -2em; border-radius: 2px; }.auth_head{background-color:#f7f7f7;display:inline-block;}.auth_head_div{text-align:left;}#error-message{text-align:left;color:#ff3e3e;font-style:italic;}
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</style>
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</head>
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<body>
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<div id="content">
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<div class="login-card">
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<img src="<?= $logo_src ?>"/><br>
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<h1></h1>
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<div class="login-help">
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<?= gettext("The portal session is connected.") ?>
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<?php if (!empty($redirurl)):
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$redirurl = htmlspecialchars($redirurl); ?>
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<br/><br/>
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<?= gettext("Proceed to: ") ?>
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<a href="<?=$redirurl?>"><?=$redirurl?></a>
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<?php endif; ?>
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</div>
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<br/>
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<form method="POST" action="<?=$logouturl;?>">
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<input name="logout_id" type="hidden" value="<?=$sessionid;?>" />
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<input name="zone" type="hidden" value="<?=$cpzone;?>" />
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<input name="logout" type="submit" value="<?= gettext("Disconnect") ?>" />
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</form>
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<br />
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<span> <i>Made with ♥ by</i> <strong>Netgate</strong></span>
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</div>
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</div>
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</body>
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</html>
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<?php
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ob_flush();
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return;
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} elseif ($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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/* find MAC address for client */
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$tmpres = pfSense_ip_to_mac($clientip);
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if (!is_array($tmpres)) {
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if (!isset($cpcfg['nomacfilter']) || isset($cpcfg['passthrumacadd'])) {
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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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} else {
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/* always save MAC address in DB to allow macfilter/nomacfilter switching without flushing all clients */
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$clientmac = $tmpres['macaddr'];
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}
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unset($tmpres);
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if ($_POST['logout_id']) {
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$safe_logout_id = SQLite3::escapeString($_POST['logout_id']);
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captiveportal_disconnect_client($safe_logout_id);
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header("Location: index.php?zone=" . $cpzone);
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ob_flush();
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return;
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} elseif (($_POST['accept'] || $cpcfg['auth_method'] === 'radmac' || !empty($cpcfg['blockedmacsurl'])) && !isset($cpcfg['nomacfilter']) && $clientmac && captiveportal_blocked_mac($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($cpcfg['blockedmacsurl'], "redir");
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} else {
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if ($cpcfg['auth_method'] === 'radmac') {
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echo gettext("This MAC address has been blocked");
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} else {
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portal_reply_page($redirurl, "error", "This MAC address has been blocked", $clientmac, $clientip);
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}
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}
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} elseif (portal_consume_passthrough_credit($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", null, $redirurl);
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} elseif (isset($config['voucher'][$cpzone]['enable']) && ($_POST['accept'] && $_POST['auth_voucher']) || $_GET['voucher']) {
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if (isset($_POST['auth_voucher'])) {
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$voucher = trim($_POST['auth_voucher']);
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} else {
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/* submit voucher via URL, see https://redmine.pfsense.org/issues/1984 */
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$voucher = trim($_GET['voucher']);
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portal_reply_page($redirurl, "login", null, $clientmac, $clientip, null, null, $voucher);
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return;
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}
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$errormsg = gettext("Invalid credentials specified.");
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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, $redirurl, $attr, null, 'voucher', 'voucher') === 2) {
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portal_reply_page($redirurl, "error", "Reuse of identification not allowed.", $clientmac, $clientip);
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} elseif (portal_allow($clientip, $clientmac, $voucher, null, $redirurl, $attr, null, 'voucher', 'voucher')) {
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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, $clientmac, $clientip);
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}
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} elseif (-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, $clientmac, $clientip);
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} else {
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captiveportal_logportalauth($voucher, $clientmac, $clientip, "FAILURE");
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portal_reply_page($redirurl, "error", $config['voucher'][$cpzone]['descrmsgnoaccess'] ? $config['voucher'][$cpzone]['descrmsgnoaccess'] : $errormsg, $clientmac, $clientip);
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}
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} elseif ($_POST['accept'] || $cpcfg['auth_method'] === 'radmac') {
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if ($cpcfg['auth_method'] === 'radmac' && !isset($_POST['accept'])) {
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$user = $clientmac;
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$passwd = $cpcfg['radmac_secret'];
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$context = 'radmac'; // Radius MAC authentication
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} elseif (!empty(trim($_POST['auth_user2']))) {
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$user = trim($_POST['auth_user2']);
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$passwd = $_POST['auth_pass2'];
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$context = 'second'; // Assume users to use the first context if auth_user2 is empty/does not exist
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} else {
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$user = trim($_POST['auth_user']);
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$passwd = $_POST['auth_pass'];
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$context = 'first';
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}
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248
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249
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$pipeno = captiveportal_get_next_dn_ruleno('auth', 2000, 64500, true);
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250
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/* if the pool is empty, return appropriate message and exit */
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251
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if (is_null($pipeno)) {
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$replymsg = gettext("System reached maximum login capacity");
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253
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if ($cpcfg['auth_method'] === 'radmac') {
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echo $replymsg;
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ob_flush();
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return;
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257
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} else {
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portal_reply_page($redirurl, "error", $replymsg, $clientmac, $clientip);
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}
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log_error("Zone: {$cpzone} - WARNING! Captive portal has reached maximum login capacity");
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261
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262
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}
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263
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$auth_result = captiveportal_authenticate_user($user, $passwd, $clientmac, $clientip, $pipeno, $context);
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265
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if ($auth_result['result']) {
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captiveportal_logportalauth($user, $clientmac, $clientip, $auth_result['login_status']);
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portal_allow($clientip, $clientmac, $user, $passwd, $redirurl, $auth_result['attributes'], null, $auth_result['auth_method'], $context);
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} else {
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$type = "error";
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271
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272
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if (is_URL($auth_result['attributes']['url_redirection'], true)) {
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$redirurl = $auth_result['attributes']['url_redirection'];
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274
|
$type = "redir";
|
|
275
|
}
|
|
276
|
|
|
277
|
if ($auth_result['login_message']) {
|
|
278
|
$replymsg = $auth_result['login_message'];
|
|
279
|
} else {
|
|
280
|
$replymsg = gettext("Invalid credentials specified.");
|
|
281
|
}
|
|
282
|
|
|
283
|
captiveportal_logportalauth($user, $clientmac, $clientip, $auth_result['login_status'], $replymsg);
|
|
284
|
|
|
285
|
/* Radius MAC authentication. */
|
|
286
|
if ($context === 'radmac' && $type !== 'redir' && !isset($cpcfg['radmac_fallback'])) {
|
|
287
|
echo $replymsg;
|
|
288
|
} else {
|
|
289
|
portal_reply_page($redirurl, $type, $replymsg, $clientmac, $clientip);
|
|
290
|
}
|
|
291
|
}
|
|
292
|
} else {
|
|
293
|
/* display captive portal page */
|
|
294
|
portal_reply_page($redirurl, "login", null, $clientmac, $clientip);
|
|
295
|
}
|
|
296
|
|
|
297
|
ob_flush();
|
|
298
|
|
|
299
|
?>
|
