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<?php
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/*
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* voucher.inc
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2007-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2019 Rubicon Communications, LLC (Netgate)
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* Copyright (c) 2007 Marcel Wiget <mwiget@mac.com>
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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) 2003-2004 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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/* include all configuration functions */
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if (!function_exists('captiveportal_syslog')) {
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require_once("captiveportal.inc");
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}
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function xmlrpc_sync_voucher_details(&$syncip, &$port, &$username, &$password) {
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global $config;
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if (!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) {
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$syncip = $config['voucher'][$cpzone]['vouchersyncdbip'];
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$port = $config['voucher'][$cpzone]['vouchersyncport'];
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$username = $config['voucher'][$cpzone]['vouchersyncusername'];
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$password = $config['voucher'][$cpzone]['vouchersyncpass'];
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return true;
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}
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if (!is_array($config['hasync']) ||
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empty($config['hasync']['synchronizetoip']) ||
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$config['hasync']['synchronizecaptiveportal'] == "") {
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return false;
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}
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$syncip = $config['hasync']['synchronizetoip'];
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$password = $config['hasync']['password'];
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if (empty($config['hasync']['username'])) {
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$username = "admin";
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} else {
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$username = $config['hasync']['username'];
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}
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/* if port is empty lets rely on the protocol selection */
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$port = $config['system']['webgui']['port'];
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if (empty($port)) {
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if ($config['system']['webgui']['protocol'] == "http") {
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$port = "80";
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} else {
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$port = "443";
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}
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}
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return true;
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}
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function xmlrpc_sync_voucher_expire($vouchers, $syncip, $port, $password, $username) {
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global $cpzone;
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require_once("xmlrpc_client.inc");
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/* Construct code that is run on remote machine */
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$execcmd = <<<EOF
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global \$cpzone;
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require_once('/etc/inc/captiveportal.inc');
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require_once('/etc/inc/voucher.inc');
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\$cpzone = "$cpzone";
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return voucher_expire("$vouchers");
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EOF;
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$rpc_client = new pfsense_xmlrpc_client();
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$rpc_client->setConnectionData($syncip, $port, $username, $password);
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$resp = $rpc_client->xmlrpc_exec_php($execcmd);
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if (empty($resp)) {
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return false;
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}
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return $resp;
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}
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function xmlrpc_sync_voucher_disconnect($dbent, $syncip, $port, $password, $username, $term_cause = 1, $stop_time = null) {
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global $cpzone;
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require_once("xmlrpc_client.inc");
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/* Construct code that is run on remote machine */
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$dbent_str = addslashes(serialize($dbent));
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$tmp_stop_time = (isset($stop_time)) ? $stop_time : "null";
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$execcmd = <<<EOF
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global \$cpzone;
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require_once('/etc/inc/captiveportal.inc');
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require_once('/etc/inc/voucher.inc');
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\$cpzone = "$cpzone";
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\$dbent = unserialize("$dbent_str");
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return captiveportal_disconnect(\$dbent, $term_cause, $tmp_stop_time);
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EOF;
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$rpc_client = new pfsense_xmlrpc_client();
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$rpc_client->setConnectionData($syncip, $port, $username, $password);
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$resp = $rpc_client->xmlrpc_exec_php($execcmd);
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if (empty($resp)) {
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return false;
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}
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return $resp;
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}
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function xmlrpc_sync_used_voucher($voucher_received, $syncip, $port, $password, $username) {
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global $config, $cpzone;
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require_once("xmlrpc_client.inc");
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/* Construct code that is run on remote machine */
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$execcmd = <<<EOF
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global \$cpzone, \$config;
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require_once('/etc/inc/voucher.inc');
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\$cpzone = "$cpzone";
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\$timeleft = voucher_auth("$voucher_received");
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\$toreturn = array();
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\$toreturn['timeleft'] = \$timeleft;
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\$toreturn['voucher'] = array();
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if (is_array(\$config['voucher'][\$cpzone]['roll'])) {
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\$toreturn['voucher']['roll'] = \$config['voucher'][\$cpzone]['roll'];
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}
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EOF;
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$rpc_client = new pfsense_xmlrpc_client();
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$rpc_client->setConnectionData($syncip, $port, $username, $password);
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$resp = $rpc_client->xmlrpc_exec_php($execcmd);
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if (!is_array($config['voucher'])) {
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$config['voucher'] = array();
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}
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if (is_array($resp['voucher']['roll'])) {
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$config['voucher'][$cpzone]['roll'] = $resp['voucher']['roll'];
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write_config(sprintf(gettext('Captive Portal Voucher database synchronized with %1$s:%2$s'), $syncip, $port));
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voucher_configure_zone(true);
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unset($resp['voucher']);
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} else if (!isset($resp['timeleft'])) {
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return 0;
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}
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return $resp['timeleft'];
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}
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function voucher_expire($voucher_received) {
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global $g, $config, $cpzone, $cpzoneid;
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// XMLRPC Call over to the master Voucher node
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if (xmlrpc_sync_voucher_details($syncip, $syncport,
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$vouchersyncusername, $syncpass)) {
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xmlrpc_sync_voucher_expire($voucher_received, $syncip,
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$syncport, $syncpass, $vouchersyncusername);
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}
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$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
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// read rolls into assoc array with rollid as key and minutes as value
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$tickets_per_roll = array();
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$minutes_per_roll = array();
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if (is_array($config['voucher'][$cpzone]['roll'])) {
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foreach ($config['voucher'][$cpzone]['roll'] as $rollent) {
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$tickets_per_roll[$rollent['number']] = $rollent['count'];
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$minutes_per_roll[$rollent['number']] = $rollent['minutes'];
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}
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}
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// split into an array. Useful for multiple vouchers given
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$a_vouchers_received = preg_split("/[\t\n\r ]+/s", $voucher_received);
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$active_dirty = false;
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$unsetindexes = array();
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// go through all received vouchers, check their valid and extract
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// Roll# and Ticket# using the external readvoucher binary
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foreach ($a_vouchers_received as $voucher) {
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$v = escapeshellarg($voucher);
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if (strlen($voucher) < 5) {
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captiveportal_syslog("${voucher} invalid: Too short!");
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continue; // seems too short to be a voucher!
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}
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unset($output);
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$_gb = exec("/usr/local/bin/voucher -c {$g['varetc_path']}/voucher_{$cpzone}.cfg -k {$g['varetc_path']}/voucher_{$cpzone}.public -- $v", $output);
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list($status, $roll, $nr) = explode(" ", $output[0]);
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if ($status == "OK") {
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// check if we have this ticket on a registered roll for this ticket
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if ($tickets_per_roll[$roll] && ($nr <= $tickets_per_roll[$roll])) {
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// voucher is from a registered roll.
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if (!isset($active_vouchers[$roll])) {
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$active_vouchers[$roll] = voucher_read_active_db($roll);
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}
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// valid voucher. Store roll# and ticket#
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if (!empty($active_vouchers[$roll][$voucher])) {
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$active_dirty = true;
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unset($active_vouchers[$roll][$voucher]);
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}
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// check if voucher already marked as used
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if (!isset($bitstring[$roll])) {
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$bitstring[$roll] = voucher_read_used_db($roll);
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}
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$pos = $nr >> 3; // divide by 8 -> octet
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$mask = 1 << ($nr % 8);
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// mark bit for this voucher as used
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if (!(ord($bitstring[$roll][$pos]) & $mask)) {
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$bitstring[$roll][$pos] = chr(ord($bitstring[$roll][$pos]) | $mask);
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}
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captiveportal_syslog("{$voucher} ({$roll}/{$nr}) forced to expire");
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/* Check if this voucher has any active sessions */
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$cpentry = captiveportal_read_db("WHERE username = '{$voucher}'");
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if (!empty($cpentry) && !empty($cpentry[0])) {
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if (empty($cpzoneid) && !empty($config['captiveportal'][$cpzone])) {
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$cpzoneid = $config['captiveportal'][$cpzone]['zoneid'];
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}
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$cpentry = $cpentry[0];
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captiveportal_disconnect($cpentry, 13);
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captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "FORCLY TERMINATING VOUCHER {$voucher} SESSION");
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$unsetindexes[] = $cpentry[5];
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}
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} else {
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captiveportal_syslog(sprintf(gettext('%1$s (%2$s/%3$s): not found on any registered Roll'), $voucher, $roll, $nr));
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}
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} else {
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// hmm, thats weird ... not what I expected
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captiveportal_syslog(sprintf(gettext('%1$s invalid: %2$s!!'), $voucher, $output[0]));
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}
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}
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// Refresh active DBs
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if ($active_dirty == true) {
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foreach ($active_vouchers as $roll => $active) {
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voucher_write_active_db($roll, $active);
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}
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unset($active_vouchers);
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/* Trigger a sync of the vouchers on config */
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send_event("service sync vouchers");
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}
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// Write back the used DB's
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if (is_array($bitstring)) {
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foreach ($bitstring as $roll => $used) {
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if (is_array($used)) {
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foreach ($used as $u) {
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voucher_write_used_db($roll, base64_encode($u));
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}
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} else {
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voucher_write_used_db($roll, base64_encode($used));
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}
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}
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unset($bitstring);
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}
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unlock($voucherlck);
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/* Write database */
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if (!empty($unsetindexes)) {
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captiveportal_remove_entries($unsetindexes);
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}
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270
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return true;
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}
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/*
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* Authenticate a voucher and return the remaining time credit in minutes
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* if $test is set, don't mark the voucher as used nor add it to the list
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* of active vouchers
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* If $test is set, simply test the voucher. Don't change anything
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* but return a more verbose error and result message back
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280
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*/
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281
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function voucher_auth($voucher_received, $test = 0) {
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282
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global $g, $config, $cpzone, $dbc;
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283
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284
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if (!isset($config['voucher'][$cpzone]['enable'])) {
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285
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return 0;
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286
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}
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287
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288
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// XMLRPC Call over to the master Voucher node
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289
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if (xmlrpc_sync_voucher_details($syncip, $syncport,
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$vouchersyncusername, $syncpass)) {
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291
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$remote_time_used = xmlrpc_sync_used_voucher($voucher_received,
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$syncip, $syncport, $syncpass, $vouchersyncusername);
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293
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}
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294
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295
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$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
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296
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297
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// read rolls into assoc array with rollid as key and minutes as value
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298
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$tickets_per_roll = array();
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299
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$minutes_per_roll = array();
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300
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if (is_array($config['voucher'][$cpzone]['roll'])) {
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301
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foreach ($config['voucher'][$cpzone]['roll'] as $rollent) {
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302
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$tickets_per_roll[$rollent['number']] = $rollent['count'];
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$minutes_per_roll[$rollent['number']] = $rollent['minutes'];
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}
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305
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}
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306
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307
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// split into an array. Useful for multiple vouchers given
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308
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$a_vouchers_received = preg_split("/[\t\n\r ]+/s", $voucher_received);
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309
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$error = 0;
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310
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$test_result = array(); // used to display for voucher test option in GUI
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311
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$total_minutes = 0;
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312
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$first_voucher = "";
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313
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$first_voucher_roll = 0;
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314
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|
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315
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// go through all received vouchers, check their valid and extract
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316
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// Roll# and Ticket# using the external readvoucher binary
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317
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foreach ($a_vouchers_received as $voucher) {
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318
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$v = escapeshellarg($voucher);
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319
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if (strlen($voucher) < 5) {
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$voucher_err_text = sprintf(gettext("%s invalid: Too short!"), $voucher);
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321
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$test_result[] = $voucher_err_text;
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captiveportal_syslog($voucher_err_text);
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$error++;
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continue; // seems too short to be a voucher!
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325
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}
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326
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327
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$result = exec("/usr/local/bin/voucher -c {$g['varetc_path']}/voucher_{$cpzone}.cfg -k {$g['varetc_path']}/voucher_{$cpzone}.public -- $v");
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328
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list($status, $roll, $nr) = explode(" ", $result);
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329
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if ($status == "OK") {
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330
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if (!$first_voucher) {
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331
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// store first voucher. Thats the one we give the timecredit
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332
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$first_voucher = $voucher;
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333
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$first_voucher_roll = $roll;
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334
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}
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335
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// check if we have this ticket on a registered roll for this ticket
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336
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if ($tickets_per_roll[$roll] && ($nr <= $tickets_per_roll[$roll])) {
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337
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// voucher is from a registered roll.
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338
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if (!isset($active_vouchers[$roll])) {
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339
|
$active_vouchers[$roll] = voucher_read_active_db($roll);
|
|
340
|
}
|
|
341
|
// valid voucher. Store roll# and ticket#
|
|
342
|
if (!empty($active_vouchers[$roll][$voucher])) {
|
|
343
|
list($timestamp, $minutes) = explode(",", $active_vouchers[$roll][$voucher]);
|
|
344
|
// we have an already active voucher here.
|
|
345
|
$remaining = intval((($timestamp + (60*$minutes)) - time())/60);
|
|
346
|
$test_result[] = sprintf(gettext('%1$s (%2$s/%3$s) active and good for %4$d Minutes'), $voucher, $roll, $nr, $remaining);
|
|
347
|
$total_minutes += $remaining;
|
|
348
|
} else {
|
|
349
|
// voucher not used. Check if ticket Id is on the roll (not too high)
|
|
350
|
// and if the ticket is marked used.
|
|
351
|
// check if voucher already marked as used
|
|
352
|
if (!isset($bitstring[$roll])) {
|
|
353
|
$bitstring[$roll] = voucher_read_used_db($roll);
|
|
354
|
}
|
|
355
|
$pos = $nr >> 3; // divide by 8 -> octet
|
|
356
|
$mask = 1 << ($nr % 8);
|
|
357
|
if (ord($bitstring[$roll][$pos]) & $mask) {
|
|
358
|
$voucher_err_text = sprintf(gettext('%1$s (%2$s/%3$s) already used and expired'), $voucher, $roll, $nr);
|
|
359
|
$test_result[] = $voucher_err_text;
|
|
360
|
captiveportal_syslog($voucher_err_text);
|
|
361
|
$total_minutes = -1; // voucher expired
|
|
362
|
$error++;
|
|
363
|
} else {
|
|
364
|
// mark bit for this voucher as used
|
|
365
|
$bitstring[$roll][$pos] = chr(ord($bitstring[$roll][$pos]) | $mask);
|
|
366
|
$test_result[] = sprintf(gettext('%1$s (%2$s/%3$s) good for %4$s Minutes'), $voucher, $roll, $nr, $minutes_per_roll[$roll]);
|
|
367
|
$total_minutes += $minutes_per_roll[$roll];
|
|
368
|
}
|
|
369
|
}
|
|
370
|
} else {
|
|
371
|
$voucher_err_text = sprintf(gettext('%1$s (%2$s/%3$s): not found on any registered Roll'), $voucher, $roll, $nr);
|
|
372
|
$test_result[] = $voucher_err_text;
|
|
373
|
captiveportal_syslog($voucher_err_text);
|
|
374
|
}
|
|
375
|
} else {
|
|
376
|
// hmm, thats weird ... not what I expected
|
|
377
|
$voucher_err_text = sprintf(gettext('%1$s invalid: %2$s !!'), $voucher, $result);
|
|
378
|
$test_result[] = $voucher_err_text;
|
|
379
|
captiveportal_syslog($voucher_err_text);
|
|
380
|
$error++;
|
|
381
|
}
|
|
382
|
}
|
|
383
|
|
|
384
|
// if this was a test call, we're done. Return the result.
|
|
385
|
if ($test) {
|
|
386
|
if ($error) {
|
|
387
|
$test_result[] = gettext("Access denied!");
|
|
388
|
} else {
|
|
389
|
$test_result[] = sprintf(gettext("Access granted for %d Minutes in total."), $total_minutes);
|
|
390
|
}
|
|
391
|
unlock($voucherlck);
|
|
392
|
|
|
393
|
return $test_result;
|
|
394
|
}
|
|
395
|
|
|
396
|
// if we had an error (one of the vouchers is invalid), return 0.
|
|
397
|
// Discussion: we could return the time remaining for good vouchers, but then
|
|
398
|
// the user wouldn't know that he used at least one invalid voucher.
|
|
399
|
if ($error) {
|
|
400
|
unlock($voucherlck);
|
|
401
|
if ($total_minutes > 0) { // probably not needed, but want to make sure
|
|
402
|
$total_minutes = 0; // we only report -1 (expired) or 0 (no access)
|
|
403
|
}
|
|
404
|
return $total_minutes; // well, at least one voucher had errors. Say NO ACCESS
|
|
405
|
}
|
|
406
|
|
|
407
|
// If we did a XMLRPC sync earlier check the timeleft
|
|
408
|
if (!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) {
|
|
409
|
if (!is_null($remote_time_used)) {
|
|
410
|
$total_minutes = $remote_time_used;
|
|
411
|
} else if ($remote_time_used < $total_minutes) {
|
|
412
|
$total_minutes -= $remote_time_used;
|
|
413
|
}
|
|
414
|
}
|
|
415
|
|
|
416
|
// All given vouchers were valid and this isn't simply a test.
|
|
417
|
// Write back the used DB's
|
|
418
|
if (is_array($bitstring)) {
|
|
419
|
foreach ($bitstring as $roll => $used) {
|
|
420
|
if (is_array($used)) {
|
|
421
|
foreach ($used as $u) {
|
|
422
|
voucher_write_used_db($roll, base64_encode($u));
|
|
423
|
}
|
|
424
|
} else {
|
|
425
|
voucher_write_used_db($roll, base64_encode($used));
|
|
426
|
}
|
|
427
|
}
|
|
428
|
}
|
|
429
|
|
|
430
|
// Active DB: we only add the first voucher if multiple given
|
|
431
|
// and give that one all the time credit. This allows the user to logout and
|
|
432
|
// log in later using just the first voucher. It also keeps username limited
|
|
433
|
// to one voucher and that voucher shows the correct time credit in 'active vouchers'
|
|
434
|
if (!empty($active_vouchers[$first_voucher_roll][$first_voucher])) {
|
|
435
|
list($timestamp, $minutes) = explode(",", $active_vouchers[$first_voucher_roll][$first_voucher]);
|
|
436
|
} else {
|
|
437
|
$timestamp = time(); // new voucher
|
|
438
|
$minutes = $total_minutes;
|
|
439
|
}
|
|
440
|
|
|
441
|
$active_vouchers[$first_voucher_roll][$first_voucher] = "$timestamp,$minutes";
|
|
442
|
voucher_write_active_db($first_voucher_roll, $active_vouchers[$first_voucher_roll]);
|
|
443
|
|
|
444
|
/* Trigger a sync of the vouchers on config */
|
|
445
|
send_event("service sync vouchers");
|
|
446
|
|
|
447
|
unlock($voucherlck);
|
|
448
|
|
|
449
|
return $total_minutes;
|
|
450
|
}
|
|
451
|
|
|
452
|
function voucher_configure($sync = false) {
|
|
453
|
global $config, $g, $cpzone;
|
|
454
|
|
|
455
|
if (is_array($config['voucher'])) {
|
|
456
|
foreach ($config['voucher'] as $voucherzone => $vcfg) {
|
|
457
|
if (platform_booting()) {
|
|
458
|
echo gettext("Enabling voucher support... ");
|
|
459
|
}
|
|
460
|
$cpzone = $voucherzone;
|
|
461
|
$error = voucher_configure_zone($sync);
|
|
462
|
if (platform_booting()) {
|
|
463
|
if ($error) {
|
|
464
|
echo "error\n";
|
|
465
|
} else {
|
|
466
|
echo "done\n";
|
|
467
|
}
|
|
468
|
}
|
|
469
|
}
|
|
470
|
}
|
|
471
|
}
|
|
472
|
|
|
473
|
function voucher_configure_zone($sync = false) {
|
|
474
|
global $config, $g, $cpzone;
|
|
475
|
|
|
476
|
if (!isset($config['voucher'][$cpzone]['enable'])) {
|
|
477
|
return 0;
|
|
478
|
}
|
|
479
|
|
|
480
|
if ($sync == true) {
|
|
481
|
captiveportal_syslog("Writing voucher db from sync data...");
|
|
482
|
}
|
|
483
|
|
|
484
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
485
|
|
|
486
|
/* write public key used to verify vouchers */
|
|
487
|
$pubkey = base64_decode($config['voucher'][$cpzone]['publickey']);
|
|
488
|
$fd = fopen("{$g['varetc_path']}/voucher_{$cpzone}.public", "w");
|
|
489
|
if (!$fd) {
|
|
490
|
captiveportal_syslog("Voucher error: cannot write voucher.public");
|
|
491
|
unlock($voucherlck);
|
|
492
|
return 1;
|
|
493
|
}
|
|
494
|
fwrite($fd, $pubkey);
|
|
495
|
fclose($fd);
|
|
496
|
@chmod("{$g['varetc_path']}/voucher_{$cpzone}.public", 0600);
|
|
497
|
|
|
498
|
/* write config file used by voucher binary to decode vouchers */
|
|
499
|
$fd = fopen("{$g['varetc_path']}/voucher_{$cpzone}.cfg", "w");
|
|
500
|
if (!$fd) {
|
|
501
|
printf(gettext("Error: cannot write voucher.cfg") . "\n");
|
|
502
|
unlock($voucherlck);
|
|
503
|
return 1;
|
|
504
|
}
|
|
505
|
fwrite($fd, "{$config['voucher'][$cpzone]['rollbits']},{$config['voucher'][$cpzone]['ticketbits']},{$config['voucher'][$cpzone]['checksumbits']},{$config['voucher'][$cpzone]['magic']},{$config['voucher'][$cpzone]['charset']}\n");
|
|
506
|
fclose($fd);
|
|
507
|
@chmod("{$g['varetc_path']}/voucher_{$cpzone}.cfg", 0600);
|
|
508
|
unlock($voucherlck);
|
|
509
|
|
|
510
|
if ((platform_booting() || $sync == true) && is_array($config['voucher'][$cpzone]['roll'])) {
|
|
511
|
|
|
512
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
513
|
|
|
514
|
// create active and used DB per roll on ramdisk from config
|
|
515
|
foreach ($config['voucher'][$cpzone]['roll'] as $rollent) {
|
|
516
|
|
|
517
|
$roll = $rollent['number'];
|
|
518
|
$len = ($rollent['count'] >> 3) + 1;
|
|
519
|
if (strlen(base64_decode($rollent['used'])) != $len) {
|
|
520
|
$rollent['used'] = base64_encode(str_repeat("\000", $len));
|
|
521
|
}
|
|
522
|
voucher_write_used_db($roll, $rollent['used']);
|
|
523
|
$minutes = $rollent['minutes'];
|
|
524
|
$active_vouchers = array();
|
|
525
|
$a_active = &$rollent['active'];
|
|
526
|
if (is_array($a_active)) {
|
|
527
|
foreach ($a_active as $activent) {
|
|
528
|
$voucher = $activent['voucher'];
|
|
529
|
$timestamp = $activent['timestamp'];
|
|
530
|
$minutes = $activent['minutes'];
|
|
531
|
// its tempting to check for expired timestamps, but during
|
|
532
|
// bootup, we most likely don't have the correct time.
|
|
533
|
$active_vouchers[$voucher] = "$timestamp,$minutes";
|
|
534
|
}
|
|
535
|
}
|
|
536
|
voucher_write_active_db($roll, $active_vouchers);
|
|
537
|
}
|
|
538
|
|
|
539
|
unlock($voucherlck);
|
|
540
|
}
|
|
541
|
|
|
542
|
return 0;
|
|
543
|
}
|
|
544
|
|
|
545
|
/* write bitstring of used vouchers to ramdisk.
|
|
546
|
* Bitstring must already be base64_encoded!
|
|
547
|
*/
|
|
548
|
function voucher_write_used_db($roll, $vdb) {
|
|
549
|
global $g, $cpzone;
|
|
550
|
|
|
551
|
$fd = fopen("{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db", "w");
|
|
552
|
if ($fd) {
|
|
553
|
fwrite($fd, $vdb . "\n");
|
|
554
|
fclose($fd);
|
|
555
|
} else {
|
|
556
|
voucher_log(LOG_ERR, sprintf(gettext('cant write %1$s/voucher_%2$s_used_%3$s.db'), $g['vardb_path'], $cpzone, $roll));
|
|
557
|
}
|
|
558
|
}
|
|
559
|
|
|
560
|
/* return assoc array of active vouchers with activation timestamp
|
|
561
|
* voucher is index.
|
|
562
|
*/
|
|
563
|
function voucher_read_active_db($roll) {
|
|
564
|
global $g, $cpzone;
|
|
565
|
|
|
566
|
$active = array();
|
|
567
|
$dirty = 0;
|
|
568
|
$file = "{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db";
|
|
569
|
if (file_exists($file)) {
|
|
570
|
$fd = fopen($file, "r");
|
|
571
|
if ($fd) {
|
|
572
|
while (!feof($fd)) {
|
|
573
|
$line = trim(fgets($fd));
|
|
574
|
if ($line) {
|
|
575
|
list($voucher, $timestamp, $minutes) = explode(",", $line); // voucher,timestamp
|
|
576
|
if ((($timestamp + (60*$minutes)) - time()) > 0) {
|
|
577
|
$active[$voucher] = "$timestamp,$minutes";
|
|
578
|
} else {
|
|
579
|
$dirty=1;
|
|
580
|
}
|
|
581
|
}
|
|
582
|
}
|
|
583
|
fclose($fd);
|
|
584
|
if ($dirty) { // if we found expired entries, lets save our snapshot
|
|
585
|
voucher_write_active_db($roll, $active);
|
|
586
|
|
|
587
|
/* Trigger a sync of the vouchers on config */
|
|
588
|
send_event("service sync vouchers");
|
|
589
|
}
|
|
590
|
}
|
|
591
|
}
|
|
592
|
return $active;
|
|
593
|
}
|
|
594
|
|
|
595
|
/* store array of active vouchers back to DB */
|
|
596
|
function voucher_write_active_db($roll, $active) {
|
|
597
|
global $g, $cpzone;
|
|
598
|
|
|
599
|
if (!is_array($active)) {
|
|
600
|
return;
|
|
601
|
}
|
|
602
|
$fd = fopen("{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db", "w");
|
|
603
|
if ($fd) {
|
|
604
|
foreach ($active as $voucher => $value) {
|
|
605
|
fwrite($fd, "$voucher,$value\n");
|
|
606
|
}
|
|
607
|
fclose($fd);
|
|
608
|
}
|
|
609
|
}
|
|
610
|
|
|
611
|
/* return how many vouchers are marked used on a roll */
|
|
612
|
function voucher_used_count($roll) {
|
|
613
|
global $g, $cpzone;
|
|
614
|
|
|
615
|
$bitstring = voucher_read_used_db($roll);
|
|
616
|
$max = strlen($bitstring) * 8;
|
|
617
|
$used = 0;
|
|
618
|
for ($i = 1; $i <= $max; $i++) {
|
|
619
|
// check if ticket already used or not.
|
|
620
|
$pos = $i >> 3; // divide by 8 -> octet
|
|
621
|
$mask = 1 << ($i % 8); // mask to test bit in octet
|
|
622
|
if (ord($bitstring[$pos]) & $mask) {
|
|
623
|
$used++;
|
|
624
|
}
|
|
625
|
}
|
|
626
|
unset($bitstring);
|
|
627
|
|
|
628
|
return $used;
|
|
629
|
}
|
|
630
|
|
|
631
|
function voucher_read_used_db($roll) {
|
|
632
|
global $g, $cpzone;
|
|
633
|
|
|
634
|
$vdb = "";
|
|
635
|
$file = "{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db";
|
|
636
|
if (file_exists($file)) {
|
|
637
|
$fd = fopen($file, "r");
|
|
638
|
if ($fd) {
|
|
639
|
$vdb = trim(fgets($fd));
|
|
640
|
fclose($fd);
|
|
641
|
} else {
|
|
642
|
voucher_log(LOG_ERR, sprintf(gettext('cant read %1$s/voucher_%2$s_used_%3$s.db'), $g['vardb_path'], $cpzone, $roll));
|
|
643
|
}
|
|
644
|
}
|
|
645
|
return base64_decode($vdb);
|
|
646
|
}
|
|
647
|
|
|
648
|
function voucher_unlink_db($roll) {
|
|
649
|
global $g, $cpzone;
|
|
650
|
@unlink("{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db");
|
|
651
|
@unlink("{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db");
|
|
652
|
}
|
|
653
|
|
|
654
|
/* we share the log with captiveportal for now */
|
|
655
|
function voucher_log($priority, $message) {
|
|
656
|
|
|
657
|
$message = trim($message);
|
|
658
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
|
659
|
syslog($priority, sprintf(gettext("Voucher: %s"), $message));
|
|
660
|
closelog();
|
|
661
|
}
|
|
662
|
|
|
663
|
/* Save active and used voucher DB into XML config and write it to flash
|
|
664
|
* Called during reboot -> system_reboot_cleanup() and every active voucher change
|
|
665
|
*/
|
|
666
|
function voucher_save_db_to_config() {
|
|
667
|
global $config, $g, $cpzone;
|
|
668
|
|
|
669
|
if (is_array($config['voucher'])) {
|
|
670
|
foreach ($config['voucher'] as $voucherzone => $vcfg) {
|
|
671
|
$cpzone = $voucherzone;
|
|
672
|
voucher_save_db_to_config_zone();
|
|
673
|
}
|
|
674
|
}
|
|
675
|
}
|
|
676
|
|
|
677
|
function voucher_save_db_to_config_zone() {
|
|
678
|
global $config, $g, $cpzone;
|
|
679
|
|
|
680
|
if (!isset($config['voucher'][$cpzone]['enable'])) {
|
|
681
|
return; // no vouchers or don't want to save DB's
|
|
682
|
}
|
|
683
|
|
|
684
|
if (!is_array($config['voucher'][$cpzone]['roll'])) {
|
|
685
|
return;
|
|
686
|
}
|
|
687
|
|
|
688
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
689
|
|
|
690
|
// walk all active rolls and save runtime DB's to flash
|
|
691
|
$a_roll = &$config['voucher'][$cpzone]['roll'];
|
|
692
|
while (list($key, $value) = each($a_roll)) {
|
|
693
|
$rollent = &$a_roll[$key];
|
|
694
|
$roll = $rollent['number'];
|
|
695
|
$bitmask = voucher_read_used_db($roll);
|
|
696
|
$rollent['used'] = base64_encode($bitmask);
|
|
697
|
$active_vouchers = voucher_read_active_db($roll);
|
|
698
|
$db = array();
|
|
699
|
$dbi = 1;
|
|
700
|
foreach ($active_vouchers as $voucher => $line) {
|
|
701
|
list($timestamp, $minutes) = explode(",", $line);
|
|
702
|
$activent['voucher'] = $voucher;
|
|
703
|
$activent['timestamp'] = $timestamp;
|
|
704
|
$activent['minutes'] = $minutes;
|
|
705
|
$db["v{$dbi}"] = $activent;
|
|
706
|
$dbi++;
|
|
707
|
}
|
|
708
|
$rollent['active'] = $db;
|
|
709
|
unset($active_vouchers);
|
|
710
|
}
|
|
711
|
|
|
712
|
unlock($voucherlck);
|
|
713
|
|
|
714
|
write_config(gettext("Syncing vouchers"));
|
|
715
|
return;
|
|
716
|
}
|
|
717
|
|
|
718
|
?>
|