mirror of
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706 lines
25 KiB
PHP
706 lines
25 KiB
PHP
<?php
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/*
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Copyright (C) 2010 Ermal Luci <ermal.luci@gmail.com>
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Copyright (C) 2010 Scott Ullrich <sullrich@gmail.com>
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Copyright (C) 2007 Marcel Wiget <mwiget@mac.com>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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pfSense_BUILDER_BINARIES: /usr/local/bin/voucher
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pfSense_MODULE: captiveportal
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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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function xmlrpc_sync_voucher_expire($vouchers, $syncip, $port, $password, $username) {
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global $g, $config, $cpzone;
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require_once("xmlrpc.inc");
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if($port == "443")
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$url = "https://{$syncip}";
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else
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$url = "http://{$syncip}";
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/* Construct code that is run on remote machine */
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$method = 'pfsense.exec_php';
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$execcmd = <<<EOF
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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 = $cpzone;
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voucher_expire(\$vouchers);
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EOF;
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/* assemble xmlrpc payload */
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$params = array(
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XML_RPC_encode($password),
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XML_RPC_encode($execcmd)
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);
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log_error("Captive Portal Voucher XMLRPC sync data {$url}:{$port}.");
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$msg = new XML_RPC_Message($method, $params);
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$cli = new XML_RPC_Client('/xmlrpc.php', $url, $port);
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$cli->setCredentials($username, $password);
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$resp = $cli->send($msg, "250");
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if(!is_object($resp)) {
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$error = "A communications error occurred while attempting CaptivePortalVoucherSync XMLRPC sync with {$url}:{$port} (pfsense.exec_php).";
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log_error($error);
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file_notice("CaptivePortalVoucherSync", $error, "Communications error occurred", "");
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return false;
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} elseif($resp->faultCode()) {
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$error = "An error code was received while attempting CaptivePortalVoucherSync XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString();
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log_error($error);
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file_notice("CaptivePortalVoucherSync", $error, "Error code received", "");
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return false;
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} else {
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log_error("CaptivePortalVoucherSync XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php).");
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}
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$toreturn = XML_RPC_Decode($resp->value());
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return $toreturn;
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}
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function xmlrpc_sync_voucher_disconnect($dbent, $syncip, $port, $password, $username, $term_cause = "1", $stop_time = null) {
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global $g, $config, $cpzone;
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require_once("xmlrpc.inc");
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if($port == "443")
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$url = "https://{$syncip}";
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else
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$url = "http://{$syncip}";
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/* Construct code that is run on remote machine */
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$method = 'pfsense.exec_php';
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$execcmd = <<<EOF
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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 = $cpzone;
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\$radiusservers = captiveportal_get_radius_servers();
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captiveportal_disconnect(\$dbent, \$radiusservers, \$term_cause, \$stop_time);
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EOF;
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/* assemble xmlrpc payload */
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$params = array(
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XML_RPC_encode($password),
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XML_RPC_encode($execcmd)
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);
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log_error("Captive Portal Voucher XMLRPC sync data {$url}:{$port}.");
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$msg = new XML_RPC_Message($method, $params);
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$cli = new XML_RPC_Client('/xmlrpc.php', $url, $port);
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$cli->setCredentials($username, $password);
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$resp = $cli->send($msg, "250");
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if(!is_object($resp)) {
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$error = "A communications error occurred while attempting CaptivePortalVoucherSync XMLRPC sync with {$url}:{$port} (pfsense.exec_php).";
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log_error($error);
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file_notice("CaptivePortalVoucherSync", $error, "Communications error occurred", "");
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return false;
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} elseif($resp->faultCode()) {
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$error = "An error code was received while attempting CaptivePortalVoucherSync XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString();
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log_error($error);
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file_notice("CaptivePortalVoucherSync", $error, "Error code received", "");
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return false;
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} else {
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log_error("CaptivePortalVoucherSync XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php).");
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}
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$toreturn = XML_RPC_Decode($resp->value());
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return $toreturn;
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}
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function xmlrpc_sync_used_voucher($voucher_received, $syncip, $port, $password, $username) {
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global $g, $config, $cpzone;
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require_once("xmlrpc.inc");
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if($port == "443")
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$url = "https://{$syncip}";
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else
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$url = "http://{$syncip}";
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/* Construct code that is run on remote machine */
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$method = 'pfsense.exec_php';
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$execcmd = <<<EOF
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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']['roll'] = \$config['voucher'][$cpzone]['roll'];
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EOF;
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/* assemble xmlrpc payload */
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$params = array(
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XML_RPC_encode($password),
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XML_RPC_encode($execcmd)
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);
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log_error("Captive Portal Voucher XMLRPC sync data {$url}:{$port}.");
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$msg = new XML_RPC_Message($method, $params);
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$cli = new XML_RPC_Client('/xmlrpc.php', $url, $port);
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$cli->setCredentials($username, $password);
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$resp = $cli->send($msg, "250");
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if(!is_object($resp)) {
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$error = "A communications error occurred while attempting CaptivePortalVoucherSync XMLRPC sync with {$url}:{$port} (pfsense.exec_php).";
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log_error($error);
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file_notice("CaptivePortalVoucherSync", $error, "Communications error occurred", "");
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return 0; // $timeleft
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} elseif($resp->faultCode()) {
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$error = "An error code was received while attempting CaptivePortalVoucherSync XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString();
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log_error($error);
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file_notice("CaptivePortalVoucherSync", $error, "Error code received", "");
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return 0; // $timeleft
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} else {
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log_error("CaptivePortalVoucherSync XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php).");
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}
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$toreturn = XML_RPC_Decode($resp->value());
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if (is_array($toreturn['voucher']) && (count($toreturn['voucher'][$cpzone]['roll']) <> count($config['voucher'][$cpzone]['roll']))) {
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$config['voucher'][$cpzone]['roll'] = $toreturn['voucher']['roll'];
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write_config("Captive Portal Voucher database synchronized with {$url}");
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voucher_configure_zone(true);
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}
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return $toreturn['timeleft'];
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}
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function voucher_expire($voucher_received) {
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global $g, $config, $cpzone;
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$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
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// XMLRPC Call over to the master Voucher node
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if(!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) {
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$syncip = $config['voucher'][$cpzone]['vouchersyncdbip'];
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$syncport = $config['voucher'][$cpzone]['vouchersyncport'];
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$syncpass = $config['voucher'][$cpzone]['vouchersyncpass'];
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$vouchersyncusername = $config['voucher'][$cpzone]['vouchersyncusername'];
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xmlrpc_sync_voucher_expire($voucher_received, $syncip, $syncport, $syncpass, $vouchersyncusername);
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}
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// read rolls into assoc array with rollid as key and minutes as value
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$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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$cpdb = captiveportal_read_db(false, 4); /* Indexed by Voucher */
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$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) < 3)
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continue; // seems too short to be a voucher!
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$result = exec("/usr/local/bin/voucher -c {$g['varetc_path']}/voucher_{$cpzone}.cfg -k {$g['varetc_path']}/voucher_{$cpzone}.public -- $v");
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list($status, $roll, $nr) = explode(" ", $result);
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if ($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($roll);
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// valid voucher. Store roll# and ticket#
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if (!empty($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($roll);
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$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]) | $mask);
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captiveportal_syslog("{$voucher} ({$roll}/{$nr}) forced to expire");
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/* Check if this voucher has any active sessions */
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if (isset($cpdb[$voucher])) {
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$cpentry = $cpdb[$voucher];
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captiveportal_disconnect($cpentry,null,13);
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captiveportal_logportalauth($cpentry[4],$cpentry[3],$cpentry[2],"FORCLY TERMINATING VOUCHER {$voucher} SESSION");
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unset($cpdb[$voucher]);
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$unsetindexes[] = $cpentry[5];
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}
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} else
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captiveportal_syslog("$voucher ($roll/$nr): not found on any registererd Roll");
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} else
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// hmm, thats weird ... not what I expected
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captiveportal_syslog("$voucher invalid: $result !!");
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}
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// Refresh active DBs
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if ($active_dirty == true) {
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foreach ($active_vouchers as $roll => $active)
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voucher_write_active_db($roll, $active);
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/* Triger a sync of the vouchers on config */
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send_event("service sync vouchers");
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}
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// Write back the used DB's
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if (is_array($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($u));
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} else {
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voucher_write_used_db($roll, base64_encode($used));
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}
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}
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}
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unlock($voucherlck);
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/* Write database */
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if (!empty($unsetindexes))
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captiveportal_write_db($cpdb, false, $unsetindexes);
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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 $test is set, simply test the voucher. Don't change anything
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* but return a more verbose error and result message back
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*/
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function voucher_auth($voucher_received, $test = 0) {
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global $g, $config, $cpzone, $dbc;
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if (!isset($config['voucher'][$cpzone]['enable']))
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return 0;
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$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
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// XMLRPC Call over to the master Voucher node
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if(!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) {
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$syncip = $config['voucher'][$cpzone]['vouchersyncdbip'];
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$syncport = $config['voucher'][$cpzone]['vouchersyncport'];
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$syncpass = $config['voucher'][$cpzone]['vouchersyncpass'];
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$vouchersyncusername = $config['voucher'][$cpzone]['vouchersyncusername'];
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$remote_time_used = xmlrpc_sync_used_voucher($voucher_received, $syncip, $syncport, $syncpass, $vouchersyncusername);
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}
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// read rolls into assoc array with rollid as key and minutes as value
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$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", $voucher_received);
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$error = 0;
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$test_result = array(); // used to display for voucher test option in GUI
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$total_minutes = 0;
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$first_voucher = "";
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$first_voucher_roll = 0;
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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) < 3)
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continue; // seems too short to be a voucher!
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$result = exec("/usr/local/bin/voucher -c {$g['varetc_path']}/voucher_{$cpzone}.cfg -k {$g['varetc_path']}/voucher_{$cpzone}.public -- $v");
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list($status, $roll, $nr) = explode(" ", $result);
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if ($status == "OK") {
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if (!$first_voucher) {
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// store first voucher. Thats the one we give the timecredit
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$first_voucher = $voucher;
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$first_voucher_roll = $roll;
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}
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// check if we have this ticket on a registered roll for this ticket
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if ($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($roll);
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// valid voucher. Store roll# and ticket#
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if (!empty($active_vouchers[$roll][$voucher])) {
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list($timestamp,$minutes) = explode(",", $active_vouchers[$roll][$voucher]);
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// we have an already active voucher here.
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$remaining = intval((($timestamp + (60*$minutes)) - time())/60);
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$test_result[] = sprintf(gettext('%1$s (%2$s/%3$s) active and good for %4$d Minutes'), $voucher, $roll, $nr, $remaining);
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$total_minutes += $remaining;
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} else {
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// voucher not used. Check if ticket Id is on the roll (not too high)
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// and if the ticket is marked used.
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// check if voucher already marked as used
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if (!isset($bitstring[$roll]))
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$bitstring[$roll] = voucher_read_used_db($roll);
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$pos = $nr >> 3; // divide by 8 -> octet
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$mask = 1 << ($nr % 8);
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if (ord($bitstring[$roll][$pos]) & $mask) {
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$test_result[] = "$voucher ($roll/$nr) already used and expired";
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captiveportal_syslog("$voucher ($roll/$nr) already used and expired");
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$total_minutes = -1; // voucher expired
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$error++;
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} else {
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// mark bit for this voucher as used
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$bitstring[$roll][$pos] = chr(ord($bitstring[$roll][$pos]) | $mask);
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$test_result[] = "$voucher ($roll/$nr) good for {$minutes_per_roll[$roll]} Minutes";
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$total_minutes += $minutes_per_roll[$roll];
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}
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}
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} else {
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$test_result[] = "$voucher ($roll/$nr): not found on any registererd Roll";
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captiveportal_syslog("$voucher ($roll/$nr): not found on any registererd Roll");
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}
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} else {
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// hmm, thats weird ... not what I expected
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$test_result[] = "$voucher invalid: $result !!";
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captiveportal_syslog("$voucher invalid: $result !!");
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$error++;
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}
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}
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// if this was a test call, we're done. Return the result.
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if ($test) {
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if ($error) {
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$test_result[] = gettext("Access denied!");
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} else {
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$test_result[] = sprintf(gettext("Access granted for %d Minutes in total."),$total_minutes);
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}
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unlock($voucherlck);
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return $test_result;
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}
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// if we had an error (one of the vouchers is invalid), return 0.
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// Discussion: we could return the time remaining for good vouchers, but then
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// the user wouldn't know that he used at least one invalid voucher.
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if ($error) {
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unlock($voucherlck);
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if ($total_minutes > 0) // probably not needed, but want to make sure
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$total_minutes = 0; // we only report -1 (expired) or 0 (no access)
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return $total_minutes; // well, at least one voucher had errors. Say NO ACCESS
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}
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// If we did a XMLRPC sync earlier check the timeleft
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if (!empty($config['voucher'][$cpzone]['vouchersyncdbip']))
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if($remote_time_used < $total_minutes)
|
|
$total_minutes = $remote_time_used;
|
|
|
|
// All given vouchers were valid and this isn't simply a test.
|
|
// Write back the used DB's
|
|
if (is_array($bitstring)) {
|
|
foreach ($bitstring as $roll => $used) {
|
|
if(is_array($used)) {
|
|
foreach($used as $u)
|
|
voucher_write_used_db($roll, base64_encode($u));
|
|
} else {
|
|
voucher_write_used_db($roll, base64_encode($used));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Active DB: we only add the first voucher if multiple given
|
|
// and give that one all the time credit. This allows the user to logout and
|
|
// log in later using just the first voucher. It also keeps username limited
|
|
// to one voucher and that voucher shows the correct time credit in 'active vouchers'
|
|
if (!empty($active_vouchers[$first_voucher_roll][$first_voucher])) {
|
|
list($timestamp, $minutes) = explode(",", $active_vouchers[$first_voucher_roll][$first_voucher]);
|
|
} else {
|
|
$timestamp = time(); // new voucher
|
|
$minutes = $total_minutes;
|
|
}
|
|
|
|
$active_vouchers[$first_voucher_roll][$first_voucher] = "$timestamp,$minutes";
|
|
voucher_write_active_db($first_voucher_roll, $active_vouchers[$first_voucher_roll]);
|
|
|
|
/* Triger a sync of the vouchers on config */
|
|
send_event("service sync vouchers");
|
|
|
|
unlock($voucherlck);
|
|
|
|
return $total_minutes;
|
|
}
|
|
|
|
function voucher_configure($sync = false) {
|
|
global $config, $g, $cpzone;
|
|
|
|
if (is_array($config['voucher'])) {
|
|
foreach ($config['voucher'] as $voucherzone => $vcfg) {
|
|
if ($g['booting'])
|
|
echo gettext("Enabling voucher support... ");
|
|
$cpzone = $voucherzone;
|
|
$error = voucher_configure_zone($sync);
|
|
if ($g['booting']) {
|
|
if ($error)
|
|
echo "error\n";
|
|
else
|
|
echo "done\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function voucher_configure_zone($sync = false) {
|
|
global $config, $g, $cpzone;
|
|
|
|
if (!isset($config['voucher'][$cpzone]['enable']))
|
|
return 0;
|
|
|
|
if ($sync == true)
|
|
captiveportal_syslog("Writing voucher db from sync data...");
|
|
|
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
|
|
/* write public key used to verify vouchers */
|
|
$pubkey = base64_decode($config['voucher'][$cpzone]['publickey']);
|
|
$fd = fopen("{$g['varetc_path']}/voucher_{$cpzone}.public", "w");
|
|
if (!$fd) {
|
|
captiveportal_syslog("Voucher error: cannot write voucher.public\n");
|
|
unlock($voucherlck);
|
|
return 1;
|
|
}
|
|
fwrite($fd, $pubkey);
|
|
fclose($fd);
|
|
@chmod("{$g['varetc_path']}/voucher_{$cpzone}.public", 0600);
|
|
|
|
/* write config file used by voucher binary to decode vouchers */
|
|
$fd = fopen("{$g['varetc_path']}/voucher_{$cpzone}.cfg", "w");
|
|
if (!$fd) {
|
|
printf(gettext("Error: cannot write voucher.cfg") . "\n");
|
|
unlock($voucherlck);
|
|
return 1;
|
|
}
|
|
fwrite($fd, "{$config['voucher'][$cpzone]['rollbits']},{$config['voucher'][$cpzone]['ticketbits']},{$config['voucher'][$cpzone]['checksumbits']},{$config['voucher'][$cpzone]['magic']},{$config['voucher'][$cpzone]['charset']}\n");
|
|
fclose($fd);
|
|
@chmod("{$g['varetc_path']}/voucher_{$cpzone}.cfg", 0600);
|
|
unlock($voucherlck);
|
|
|
|
if (($g['booting'] || $sync == true) && is_array($config['voucher'][$cpzone]['roll'])) {
|
|
|
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
|
|
// create active and used DB per roll on ramdisk from config
|
|
foreach ($config['voucher'][$cpzone]['roll'] as $rollent) {
|
|
|
|
$roll = $rollent['number'];
|
|
voucher_write_used_db($roll, $rollent['used']);
|
|
$minutes = $rollent['minutes'];
|
|
$active_vouchers = array();
|
|
$a_active = &$rollent['active'];
|
|
if (is_array($a_active)) {
|
|
foreach ($a_active as $activent) {
|
|
$voucher = $activent['voucher'];
|
|
$timestamp = $activent['timestamp'];
|
|
$minutes = $activent['minutes'];
|
|
// its tempting to check for expired timestamps, but during
|
|
// bootup, we most likely don't have the correct time time.
|
|
$active_vouchers[$voucher] = "$timestamp,$minutes";
|
|
}
|
|
}
|
|
voucher_write_active_db($roll, $active_vouchers);
|
|
}
|
|
|
|
unlock($voucherlck);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* write bitstring of used vouchers to ramdisk.
|
|
* Bitstring must already be base64_encoded!
|
|
*/
|
|
function voucher_write_used_db($roll, $vdb) {
|
|
global $g, $cpzone;
|
|
|
|
$fd = fopen("{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db", "w");
|
|
if ($fd) {
|
|
fwrite($fd, $vdb . "\n");
|
|
fclose($fd);
|
|
} else
|
|
voucher_log(LOG_ERR, sprintf(gettext('cant write %1$s/voucher_%s_used_%2$s.db'), $g['vardb_path'], $cpzone, $roll));
|
|
}
|
|
|
|
/* return assoc array of active vouchers with activation timestamp
|
|
* voucher is index.
|
|
*/
|
|
function voucher_read_active_db($roll) {
|
|
global $g, $cpzone;
|
|
|
|
$active = array();
|
|
$dirty = 0;
|
|
$file = "{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db";
|
|
if (file_exists($file)) {
|
|
$fd = fopen($file, "r");
|
|
if ($fd) {
|
|
while (!feof($fd)) {
|
|
$line = trim(fgets($fd));
|
|
if ($line) {
|
|
list($voucher,$timestamp,$minutes) = explode(",", $line); // voucher,timestamp
|
|
if ((($timestamp + (60*$minutes)) - time()) > 0)
|
|
$active[$voucher] = "$timestamp,$minutes";
|
|
else
|
|
$dirty=1;
|
|
}
|
|
}
|
|
fclose($fd);
|
|
if ($dirty) { // if we found expired entries, lets save our snapshot
|
|
voucher_write_active_db($roll, $active);
|
|
|
|
/* Triger a sync of the vouchers on config */
|
|
send_event("service sync vouchers");
|
|
}
|
|
}
|
|
}
|
|
return $active;
|
|
}
|
|
|
|
/* store array of active vouchers back to DB */
|
|
function voucher_write_active_db($roll, $active) {
|
|
global $g, $cpzone;
|
|
|
|
if (!is_array($active))
|
|
return;
|
|
$fd = fopen("{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db", "w");
|
|
if ($fd) {
|
|
foreach($active as $voucher => $value)
|
|
fwrite($fd, "$voucher,$value\n");
|
|
fclose($fd);
|
|
}
|
|
}
|
|
|
|
/* return how many vouchers are marked used on a roll */
|
|
function voucher_used_count($roll) {
|
|
global $g, $cpzone;
|
|
|
|
$bitstring = voucher_read_used_db($roll);
|
|
$max = strlen($bitstring) * 8;
|
|
$used = 0;
|
|
for ($i = 1; $i <= $max; $i++) {
|
|
// check if ticket already used or not.
|
|
$pos = $i >> 3; // divide by 8 -> octet
|
|
$mask = 1 << ($i % 8); // mask to test bit in octet
|
|
if (ord($bitstring[$pos]) & $mask)
|
|
$used++;
|
|
}
|
|
return $used;
|
|
}
|
|
|
|
function voucher_read_used_db($roll) {
|
|
global $g, $cpzone;
|
|
|
|
$vdb = "";
|
|
$file = "{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db";
|
|
if (file_exists($file)) {
|
|
$fd = fopen($file, "r");
|
|
if ($fd) {
|
|
$vdb = trim(fgets($fd));
|
|
fclose($fd);
|
|
} else {
|
|
voucher_log(LOG_ERR, sprintf(gettext('cant read %1$s/voucher_%s_used_%2$s.db'), $g['vardb_path'], $cpzone, $roll));
|
|
}
|
|
}
|
|
return base64_decode($vdb);
|
|
}
|
|
|
|
function voucher_unlink_db($roll) {
|
|
global $g, $cpzone;
|
|
@unlink("{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db");
|
|
@unlink("{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db");
|
|
}
|
|
|
|
/* we share the log with captiveportal for now */
|
|
function voucher_log($priority, $message) {
|
|
|
|
$message = trim($message);
|
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
|
syslog($priority, sprintf(gettext("Voucher: %s"),$message));
|
|
closelog();
|
|
}
|
|
|
|
/* Save active and used voucher DB into XML config and write it to flash
|
|
* Called during reboot -> system_reboot_cleanup() and every active voucher change
|
|
*/
|
|
function voucher_save_db_to_config() {
|
|
global $config, $g, $cpzone;
|
|
|
|
if (is_array($config['voucher'])) {
|
|
foreach ($config['voucher'] as $voucherzone => $vcfg) {
|
|
$cpzone = $voucherzone;
|
|
voucher_save_db_to_config_zone();
|
|
}
|
|
}
|
|
}
|
|
|
|
function voucher_save_db_to_config_zone() {
|
|
global $config, $g, $cpzone;
|
|
|
|
if (!isset($config['voucher'][$cpzone]['enable']))
|
|
return; // no vouchers or don't want to save DB's
|
|
|
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
|
|
// walk all active rolls and save runtime DB's to flash
|
|
$a_roll = &$config['voucher'][$cpzone]['roll'];
|
|
while (list($key, $value) = each($a_roll)) {
|
|
$rollent = &$a_roll[$key];
|
|
$roll = $rollent['number'];
|
|
$bitmask = voucher_read_used_db($roll);
|
|
$rollent['used'] = base64_encode($bitmask);
|
|
$active_vouchers = voucher_read_active_db($roll);
|
|
$db = array();
|
|
$dbi = 1;
|
|
foreach($active_vouchers as $voucher => $line) {
|
|
list($timestamp,$minutes) = explode(",", $line);
|
|
$activent['voucher'] = $voucher;
|
|
$activent['timestamp'] = $timestamp;
|
|
$activent['minutes'] = $minutes;
|
|
$db["v{$dbi}"] = $activent;
|
|
$dbi++;
|
|
}
|
|
$rollent['active'] = $db;
|
|
}
|
|
|
|
unlock($voucherlck);
|
|
|
|
write_config("Synching vouchers");
|
|
return;
|
|
}
|
|
|
|
?>
|