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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("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 = (config_path_enabled("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 = $cpsession['sessionid'];
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}
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/* ----------------------CUSTOM CODE -------------------------------------------------------------------------
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24.11 Stbl Index.php Custom Code for Kea DHCP, check MAC address, not IP to verify client validation
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Kea flushes the IP quickly after the client disconnects, creating IP/MAC conflicts
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within the captive portal database of validated clients.
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It is the MAC that it validated, not the IP as IP can change frequently with Kea Reclamation policies
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This code updates the IP in the database to the current one for this MAC and passes the client through
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the Portal respecting that the client has a validated MAC. Dale Harron, 17 December 2024.
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------------------------------------------------------------------------------------------------------------- */
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$dbchanged = "no";
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$ARPforIP = shell_exec("arp '$clientip'");
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$clientmac = substr($ARPforIP, 17, 24);
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if (preg_match('/([a-fA-F0-9]{2}[:|\-]?){6}/', "'{$clientmac}'", $matches)) {
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$clientmac = $matches[0];
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}
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/* query the cp database for this client MAC address to see if it is already authorized */
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$query = "WHERE mac = '{$clientmac}'";
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$cpdbqry = captiveportal_read_db($query);
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foreach ($cpdbqry as $cpentrymac) {
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$cpsessionmac = $cpentrymac;
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}
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$sessionidmac = $cpentrymac[5];
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$cpdbip = $cpentrymac[2];
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$cpdbmac = $cpentrymac[3];
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unset ($cpdbqry);
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// If either MACs or IPs don't match, fix the CP DB otherwise do nothing and run original index.php code
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if ($cpdbip <> $clientip || $cpdbmac <> $clientmac) {
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// captiveportal_logportalauth($clientmac, $cpdbmac, $cpdbip, $clientip, $clientmac . "=" . $cpdbmac . "=" . $clientip . "=" . $cpdbip . "=" . $clientmac);
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if( ($clientip <> $cpdbip) && ($cpdbmac == $clientmac)) {
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// MACs match so update the old IP in the CP DB to current IP for the authorized MAC of this device
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$updt_field = "ip";
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$new_value = "'{$clientip}'";
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captiveportal_write_db("UPDATE captiveportal SET {$updt_field} = {$new_value} WHERE sessionid = '{$sessionidmac}'");
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$dbchanged = "yes";
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}
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// If this is a new MAC that has an authorized IP but is not yet authorized itself, change the IP in the cp database to OFFLINE.
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// This will retain the old MAC's authorization and free up the IP to be assigned to this device's MAC; present the login page.
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/* query the cp database for this client IP address to see if it is already associated with an authorized MAC*/
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$query = "WHERE ip = '{$clientip}'";
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$cpdbqry = captiveportal_read_db($query);
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foreach ($cpdbqry as $cpentryip) {
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$cpsessionip = $cpentryip;
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}
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$sessionidip = $cpentryip[5];
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$cpdbip = $cpentryip[2];
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if (!$cpdbmac && $cpdbip == $clientip) {
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$updt_field = 'ip';
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$new_value_tmp = "OFFLINE";
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$new_value = "'{$new_value_tmp}'";
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captiveportal_write_db("UPDATE captiveportal SET {$updt_field} = {$new_value} WHERE sessionid = '{$sessionid}'");
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$dbchanged = "yes";
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}
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unset($cpdbqry);
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// If this MAC/IP pair does not match the MAC/IP in the Captive Portal database, then the IP has changed
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// update the Captive Portal database to associate the current IP with this already authorized MAC
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// Note, this could result in multiple IP/MAC pairs of the same IP in the Captive Portal database.
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// Set all conflicting IPs to OFFLINE to retain authorization in CP DB
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if(($cpidmac <> $clientmac) && ($cpdbip == $clientip)) {
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//Remove IP conflicts assigned to other MACs in the Captive Portal Database
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$query = "WHERE ip = '{$clientip}'";
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$cpdb_ip = captiveportal_read_db($query);
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foreach ($cpdb_ip as $cpentryip) {
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$cpsessionip = $cpentryip;
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$sessionidip = $cpsessionip['sessionid'];
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$updt_field = "ip";
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$unassignip = 'OFFLINE';
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$new_value = "'{$unassignip}'";
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if($clientmac <> $cpentryip[3]) {
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captiveportal_write_db("UPDATE captiveportal SET {$updt_field} = {$new_value} WHERE sessionid = '{$sessionidip}'");
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$dbchanged = "yes";
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//captiveportal_logportalauth($clientmac, $cpdbmac, $clientip, $cpdbip, $clientmac . "=" . $cpdbmac . "=" . $clientip . "=" . $cpdbip . "=" . $clientmac);
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}
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unset($cpdb_ip);
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}
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}
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//If the Database has been updated, reload the database for this zone.
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if( $dbchanged == "yes" ) {
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//Now reload this database with these changes to make them active
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if (isset($cpcfg['preservedb']) || $reload_rules ||
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captiveportal_xmlrpc_sync_get_details($syncip, $syncport, $syncuser, $syncpass)) {
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$connected_users = captiveportal_read_db();
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if (!empty($connected_users)) {
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//echo "Reconnecting users to captive portal {$cpcfg['zone']}... ";
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foreach ($connected_users as $user) {
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captiveportal_reserve_ruleno($user['pipeno']);
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captiveportal_ether_configure_entry($user, 'auth', true);
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}
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//echo "done\n";
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}
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$cpsession = captiveportal_isip_logged($clientip);
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if (!empty($cpsession)) {
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$sessionid = $cpsession['sessionid'];
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} //ensure the $sessionid matches the now updated IP of this client
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}
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} //reindex as CP DB has changed
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} //if either IPs or MACs are not equal do something
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//captiveportal_logportalauth($clientmac, $cpdbmac, $clientip, $cpdbip, $clientmac . "=" . $cpdbmac . "=" . $clientip . "=" . $cpdbip . "=" . $clientmac);
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/* ----------- End Custom Code ----------- */
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/* Automatically switching to the logout page requires a custom logout page to be present. */
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if ((!empty($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 = "{$protocol}{$ourhostname}/" . 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 = $tmpres['macaddr'];
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}
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282
|
unset($tmpres);
|
|
283
|
|
|
284
|
if ($_POST['logout_id']) {
|
|
285
|
$safe_logout_id = SQLite3::escapeString($_POST['logout_id']);
|
|
286
|
captiveportal_disconnect_client($safe_logout_id);
|
|
287
|
header("Location: index.php?zone=" . $cpzone);
|
|
288
|
ob_flush();
|
|
289
|
return;
|
|
290
|
} elseif (($_POST['accept'] || $cpcfg['auth_method'] === 'radmac' || !empty($cpcfg['blockedmacsurl'])) && !isset($cpcfg['nomacfilter']) && $clientmac && captiveportal_blocked_mac($clientmac)) {
|
|
291
|
captiveportal_logportalauth($clientmac, $clientmac, $clientip, "Blocked MAC address");
|
|
292
|
if (!empty($cpcfg['blockedmacsurl'])) {
|
|
293
|
portal_reply_page($cpcfg['blockedmacsurl'], "redir");
|
|
294
|
} else {
|
|
295
|
if ($cpcfg['auth_method'] === 'radmac') {
|
|
296
|
echo gettext("This MAC address has been blocked");
|
|
297
|
} else {
|
|
298
|
portal_reply_page($redirurl, "error", "This MAC address has been blocked", $clientmac, $clientip);
|
|
299
|
}
|
|
300
|
}
|
|
301
|
} elseif (portal_consume_passthrough_credit($clientmac)) {
|
|
302
|
/* allow the client through if it had a pass-through credit for its MAC */
|
|
303
|
captiveportal_logportalauth("unauthenticated", $clientmac, $clientip, "ACCEPT");
|
|
304
|
portal_allow($clientip, $clientmac, "unauthenticated", null, $redirurl);
|
|
305
|
|
|
306
|
} elseif (config_path_enabled("voucher/{$cpzone}") && ($_POST['accept'] && $_POST['auth_voucher']) || $_GET['voucher']) {
|
|
307
|
if (isset($_POST['auth_voucher'])) {
|
|
308
|
$voucher = trim($_POST['auth_voucher']);
|
|
309
|
} else {
|
|
310
|
/* submit voucher via URL, see https://redmine.pfsense.org/issues/1984 */
|
|
311
|
$voucher = trim($_GET['voucher']);
|
|
312
|
portal_reply_page($redirurl, "login", null, $clientmac, $clientip, null, null, $voucher);
|
|
313
|
return;
|
|
314
|
}
|
|
315
|
$errormsg = gettext("Invalid credentials specified.");
|
|
316
|
$timecredit = voucher_auth($voucher);
|
|
317
|
// $timecredit contains either a credit in minutes or an error message
|
|
318
|
if ($timecredit > 0) { // voucher is valid. Remaining minutes returned
|
|
319
|
// if multiple vouchers given, use the first as username
|
|
320
|
$a_vouchers = preg_split("/[\t\n\r ]+/s", $voucher);
|
|
321
|
$voucher = $a_vouchers[0];
|
|
322
|
$attr = array(
|
|
323
|
'voucher' => 1,
|
|
324
|
'session_timeout' => $timecredit*60,
|
|
325
|
'session_terminate_time' => 0);
|
|
326
|
if (portal_allow($clientip, $clientmac, $voucher, null, $redirurl, $attr, null, 'voucher', 'voucher') === 2) {
|
|
327
|
portal_reply_page($redirurl, "error", "Reuse of identification not allowed.", $clientmac, $clientip);
|
|
328
|
} elseif (portal_allow($clientip, $clientmac, $voucher, null, $redirurl, $attr, null, 'voucher', 'voucher')) {
|
|
329
|
// YES: user is good for $timecredit minutes.
|
|
330
|
captiveportal_logportalauth($voucher, $clientmac, $clientip, "Voucher login good for $timecredit min.");
|
|
331
|
} else {
|
|
332
|
portal_reply_page($redirurl, "error", config_get_path("voucher/{$cpzone}/descrmsgexpired") ? config_get_path("voucher/{$cpzone}/descrmsgexpired"): $errormsg, $clientmac, $clientip);
|
|
333
|
}
|
|
334
|
} elseif (-1 == $timecredit) { // valid but expired
|
|
335
|
captiveportal_logportalauth($voucher, $clientmac, $clientip, "FAILURE", "voucher expired");
|
|
336
|
portal_reply_page($redirurl, "error", config_get_path("voucher/{$cpzone}/descrmsgexpired") ? config_get_path("voucher/{$cpzone}/descrmsgexpired"): $errormsg, $clientmac, $clientip);
|
|
337
|
} else {
|
|
338
|
captiveportal_logportalauth($voucher, $clientmac, $clientip, "FAILURE");
|
|
339
|
portal_reply_page($redirurl, "error", config_get_path("voucher/{$cpzone}/descrmsgnoaccess") ? config_get_path("voucher/{$cpzone}/descrmsgnoaccess") : $errormsg, $clientmac, $clientip);
|
|
340
|
}
|
|
341
|
|
|
342
|
} elseif ($_POST['accept'] || $cpcfg['auth_method'] === 'radmac') {
|
|
343
|
|
|
344
|
if ($cpcfg['auth_method'] === 'radmac' && !isset($_POST['accept'])) {
|
|
345
|
$user = $clientmac;
|
|
346
|
$passwd = $cpcfg['radmac_secret'];
|
|
347
|
$context = 'radmac'; // Radius MAC authentication
|
|
348
|
} elseif (!empty(trim($_POST['auth_user2']))) {
|
|
349
|
$user = trim($_POST['auth_user2']);
|
|
350
|
$passwd = $_POST['auth_pass2'];
|
|
351
|
$context = 'second'; // Assume users to use the first context if auth_user2 is empty/does not exist
|
|
352
|
} else {
|
|
353
|
$user = trim($_POST['auth_user']);
|
|
354
|
$passwd = $_POST['auth_pass'];
|
|
355
|
$context = 'first';
|
|
356
|
}
|
|
357
|
|
|
358
|
$pipeno = captiveportal_get_next_dn_ruleno('auth', 2000, 64500, true);
|
|
359
|
/* if the pool is empty, return appropriate message and exit */
|
|
360
|
if (is_null($pipeno)) {
|
|
361
|
$replymsg = gettext("System reached maximum login capacity");
|
|
362
|
if ($cpcfg['auth_method'] === 'radmac') {
|
|
363
|
echo $replymsg;
|
|
364
|
ob_flush();
|
|
365
|
return;
|
|
366
|
} else {
|
|
367
|
portal_reply_page($redirurl, "error", $replymsg, $clientmac, $clientip);
|
|
368
|
}
|
|
369
|
log_error("Zone: {$cpzone} - WARNING! Captive portal has reached maximum login capacity");
|
|
370
|
|
|
371
|
}
|
|
372
|
|
|
373
|
$auth_result = captiveportal_authenticate_user($user, $passwd, $clientmac, $clientip, $pipeno, $context);
|
|
374
|
|
|
375
|
if ($auth_result['result']) {
|
|
376
|
captiveportal_logportalauth($user, $clientmac, $clientip, $auth_result['login_status']);
|
|
377
|
portal_allow($clientip, $clientmac, $user, $passwd, $redirurl, $auth_result['attributes'], null, $auth_result['auth_method'], $context);
|
|
378
|
} else {
|
|
379
|
$type = "error";
|
|
380
|
|
|
381
|
if (is_URL($auth_result['attributes']['url_redirection'], true)) {
|
|
382
|
$redirurl = $auth_result['attributes']['url_redirection'];
|
|
383
|
$type = "redir";
|
|
384
|
}
|
|
385
|
|
|
386
|
if ($auth_result['login_message']) {
|
|
387
|
$replymsg = $auth_result['login_message'];
|
|
388
|
} else {
|
|
389
|
$replymsg = gettext("Invalid credentials specified.");
|
|
390
|
}
|
|
391
|
|
|
392
|
captiveportal_logportalauth($user, $clientmac, $clientip, $auth_result['login_status'], $replymsg);
|
|
393
|
|
|
394
|
/* Radius MAC authentication. */
|
|
395
|
if ($context === 'radmac' && $type !== 'redir' && !isset($cpcfg['radmac_fallback'])) {
|
|
396
|
echo $replymsg;
|
|
397
|
} else {
|
|
398
|
portal_reply_page($redirurl, $type, $replymsg, $clientmac, $clientip);
|
|
399
|
}
|
|
400
|
}
|
|
401
|
} else {
|
|
402
|
/* display captive portal page */
|
|
403
|
portal_reply_page($redirurl, "login", null, $clientmac, $clientip);
|
|
404
|
}
|
|
405
|
|
|
406
|
ob_flush();
|
|
407
|
|
|
408
|
?>
|