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<?php
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/*
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voucher.inc
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Copyright (C) 2010-2012 Ermal Luci <eri@pfsense.org>
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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, $cpzone;
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require_once("xmlrpc.inc");
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$protocol = "http";
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if (is_array($config['system']) && is_array($config['system']['webgui']) && !empty($config['system']['webgui']['protocol']) &&
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$config['system']['webgui']['protocol'] == "https")
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$protocol = "https";
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if ($protocol == "https" || $port == "443")
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$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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$execcmd = <<<EOF
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global \$cpzone;
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require_once('/etc/inc/captiveportal.inc');
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require_once('/etc/inc/voucher.inc');
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\$cpzone = "$cpzone";
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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, $cpzone;
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require_once("xmlrpc.inc");
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$protocol = "http";
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if (is_array($config['system']) && is_array($config['system']['webgui']) && !empty($config['system']['webgui']['protocol']) &&
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$config['system']['webgui']['protocol'] == "https")
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$protocol = "https";
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if ($protocol == "https" || $port == "443")
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$url = "https://{$syncip}";
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else
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$url = "http://{$syncip}";
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/* Construct code that is run on remote machine */
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$dbent_str = serialize($dbent);
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$tmp_stop_time = (isset($stop_time)) ? $stop_time : "null";
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$method = 'pfsense.exec_php';
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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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\$radiusservers = captiveportal_get_radius_servers();
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\$dbent = unserialize("$dbent_str");
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captiveportal_disconnect(\$dbent, \$radiusservers, $term_cause, $tmp_stop_time);
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EOF;
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/* assemble xmlrpc payload */
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$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, $cpzone;
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require_once("xmlrpc.inc");
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$protocol = "http";
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if (is_array($config['system']) && is_array($config['system']['webgui']) && !empty($config['system']['webgui']['protocol']) &&
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$config['system']['webgui']['protocol'] == "https")
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$protocol = "https";
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if ($protocol == "https" || $port == "443")
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$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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$execcmd = <<<EOF
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global \$cpzone;
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require_once('/etc/inc/voucher.inc');
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\$cpzone = "$cpzone";
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\$timeleft = voucher_auth("$voucher_received");
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\$toreturn = array();
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\$toreturn['timeleft'] = \$timeleft;
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\$toreturn['voucher'] = array();
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\$toreturn['voucher']['roll'] = \$config['voucher'][\$cpzone]['roll'];
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EOF;
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/* assemble xmlrpc payload */
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$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 null; // $timeleft
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} elseif($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 null; // $timeleft
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} else {
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log_error("CaptivePortalVoucherSync XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php).");
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}
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$toreturn = XML_RPC_Decode($resp->value());
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if (!is_array($config['voucher']))
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$config['voucher'] = array();
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if (is_array($toreturn['voucher']) && is_array($toreturn['voucher']['roll'])) {
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$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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unset($toreturn['voucher']);
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} else if (!isset($toreturn['timeleft']))
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return null;
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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, $cpzoneid;
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// XMLRPC Call over to the master Voucher node
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if(!empty($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, $vouchersyncusername);
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}
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$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) < 3)
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continue; // seems too short to be a voucher!
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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($roll);
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// valid voucher. Store roll# and ticket#
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if (!empty($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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$cpentry = captiveportal_read_db("WHERE username = '{$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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$cpentry = $cpentry[0];
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captiveportal_disconnect($cpentry,null,13);
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captiveportal_logportalauth($cpentry[4],$cpentry[3],$cpentry[2],"FORCLY TERMINATING VOUCHER {$voucher} SESSION");
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$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 registered Roll");
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} else
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// hmm, thats weird ... not what I expected
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captiveportal_syslog("$voucher invalid: {$output[0]}!!");
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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, $active);
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unset($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($u));
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} else {
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voucher_write_used_db($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($voucherlck);
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/* Write database */
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322
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if (!empty($unsetindexes))
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captiveportal_remove_entries($unsetindexes);
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return true;
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}
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328
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/*
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329
|
* Authenticate a voucher and return the remaining time credit in minutes
|
|
330
|
* if $test is set, don't mark the voucher as used nor add it to the list
|
|
331
|
* of active vouchers
|
|
332
|
* If $test is set, simply test the voucher. Don't change anything
|
|
333
|
* but return a more verbose error and result message back
|
|
334
|
*/
|
|
335
|
function voucher_auth($voucher_received, $test = 0) {
|
|
336
|
global $g, $config, $cpzone, $dbc;
|
|
337
|
|
|
338
|
if (!isset($config['voucher'][$cpzone]['enable']))
|
|
339
|
return 0;
|
|
340
|
|
|
341
|
// XMLRPC Call over to the master Voucher node
|
|
342
|
if(!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) {
|
|
343
|
$syncip = $config['voucher'][$cpzone]['vouchersyncdbip'];
|
|
344
|
$syncport = $config['voucher'][$cpzone]['vouchersyncport'];
|
|
345
|
$syncpass = $config['voucher'][$cpzone]['vouchersyncpass'];
|
|
346
|
$vouchersyncusername = $config['voucher'][$cpzone]['vouchersyncusername'];
|
|
347
|
$remote_time_used = xmlrpc_sync_used_voucher($voucher_received, $syncip, $syncport, $syncpass, $vouchersyncusername);
|
|
348
|
}
|
|
349
|
|
|
350
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
351
|
|
|
352
|
// read rolls into assoc array with rollid as key and minutes as value
|
|
353
|
$tickets_per_roll = array();
|
|
354
|
$minutes_per_roll = array();
|
|
355
|
if (is_array($config['voucher'][$cpzone]['roll'])) {
|
|
356
|
foreach ($config['voucher'][$cpzone]['roll'] as $rollent) {
|
|
357
|
$tickets_per_roll[$rollent['number']] = $rollent['count'];
|
|
358
|
$minutes_per_roll[$rollent['number']] = $rollent['minutes'];
|
|
359
|
}
|
|
360
|
}
|
|
361
|
|
|
362
|
// split into an array. Useful for multiple vouchers given
|
|
363
|
$a_vouchers_received = preg_split("/[\t\n\r ]+/s", $voucher_received);
|
|
364
|
$error = 0;
|
|
365
|
$test_result = array(); // used to display for voucher test option in GUI
|
|
366
|
$total_minutes = 0;
|
|
367
|
$first_voucher = "";
|
|
368
|
$first_voucher_roll = 0;
|
|
369
|
|
|
370
|
// go through all received vouchers, check their valid and extract
|
|
371
|
// Roll# and Ticket# using the external readvoucher binary
|
|
372
|
foreach ($a_vouchers_received as $voucher) {
|
|
373
|
$v = escapeshellarg($voucher);
|
|
374
|
if (strlen($voucher) < 3)
|
|
375
|
continue; // seems too short to be a voucher!
|
|
376
|
|
|
377
|
$result = exec("/usr/local/bin/voucher -c {$g['varetc_path']}/voucher_{$cpzone}.cfg -k {$g['varetc_path']}/voucher_{$cpzone}.public -- $v");
|
|
378
|
list($status, $roll, $nr) = explode(" ", $result);
|
|
379
|
if ($status == "OK") {
|
|
380
|
if (!$first_voucher) {
|
|
381
|
// store first voucher. Thats the one we give the timecredit
|
|
382
|
$first_voucher = $voucher;
|
|
383
|
$first_voucher_roll = $roll;
|
|
384
|
}
|
|
385
|
// check if we have this ticket on a registered roll for this ticket
|
|
386
|
if ($tickets_per_roll[$roll] && ($nr <= $tickets_per_roll[$roll])) {
|
|
387
|
// voucher is from a registered roll.
|
|
388
|
if (!isset($active_vouchers[$roll]))
|
|
389
|
$active_vouchers[$roll] = voucher_read_active_db($roll);
|
|
390
|
// valid voucher. Store roll# and ticket#
|
|
391
|
if (!empty($active_vouchers[$roll][$voucher])) {
|
|
392
|
list($timestamp,$minutes) = explode(",", $active_vouchers[$roll][$voucher]);
|
|
393
|
// we have an already active voucher here.
|
|
394
|
$remaining = intval((($timestamp + (60*$minutes)) - time())/60);
|
|
395
|
$test_result[] = sprintf(gettext('%1$s (%2$s/%3$s) active and good for %4$d Minutes'), $voucher, $roll, $nr, $remaining);
|
|
396
|
$total_minutes += $remaining;
|
|
397
|
} else {
|
|
398
|
// voucher not used. Check if ticket Id is on the roll (not too high)
|
|
399
|
// and if the ticket is marked used.
|
|
400
|
// check if voucher already marked as used
|
|
401
|
if (!isset($bitstring[$roll]))
|
|
402
|
$bitstring[$roll] = voucher_read_used_db($roll);
|
|
403
|
$pos = $nr >> 3; // divide by 8 -> octet
|
|
404
|
$mask = 1 << ($nr % 8);
|
|
405
|
if (ord($bitstring[$roll][$pos]) & $mask) {
|
|
406
|
$test_result[] = "$voucher ($roll/$nr) already used and expired";
|
|
407
|
captiveportal_syslog("$voucher ($roll/$nr) already used and expired");
|
|
408
|
$total_minutes = -1; // voucher expired
|
|
409
|
$error++;
|
|
410
|
} else {
|
|
411
|
// mark bit for this voucher as used
|
|
412
|
$bitstring[$roll][$pos] = chr(ord($bitstring[$roll][$pos]) | $mask);
|
|
413
|
$test_result[] = "$voucher ($roll/$nr) good for {$minutes_per_roll[$roll]} Minutes";
|
|
414
|
$total_minutes += $minutes_per_roll[$roll];
|
|
415
|
}
|
|
416
|
}
|
|
417
|
} else {
|
|
418
|
$test_result[] = "$voucher ($roll/$nr): not found on any registered Roll";
|
|
419
|
captiveportal_syslog("$voucher ($roll/$nr): not found on any registered Roll");
|
|
420
|
}
|
|
421
|
} else {
|
|
422
|
// hmm, thats weird ... not what I expected
|
|
423
|
$test_result[] = "$voucher invalid: $result !!";
|
|
424
|
captiveportal_syslog("$voucher invalid: $result !!");
|
|
425
|
$error++;
|
|
426
|
}
|
|
427
|
}
|
|
428
|
|
|
429
|
// if this was a test call, we're done. Return the result.
|
|
430
|
if ($test) {
|
|
431
|
if ($error) {
|
|
432
|
$test_result[] = gettext("Access denied!");
|
|
433
|
} else {
|
|
434
|
$test_result[] = sprintf(gettext("Access granted for %d Minutes in total."),$total_minutes);
|
|
435
|
}
|
|
436
|
unlock($voucherlck);
|
|
437
|
|
|
438
|
return $test_result;
|
|
439
|
}
|
|
440
|
|
|
441
|
// if we had an error (one of the vouchers is invalid), return 0.
|
|
442
|
// Discussion: we could return the time remaining for good vouchers, but then
|
|
443
|
// the user wouldn't know that he used at least one invalid voucher.
|
|
444
|
if ($error) {
|
|
445
|
unlock($voucherlck);
|
|
446
|
if ($total_minutes > 0) // probably not needed, but want to make sure
|
|
447
|
$total_minutes = 0; // we only report -1 (expired) or 0 (no access)
|
|
448
|
return $total_minutes; // well, at least one voucher had errors. Say NO ACCESS
|
|
449
|
}
|
|
450
|
|
|
451
|
// If we did a XMLRPC sync earlier check the timeleft
|
|
452
|
if (!empty($config['voucher'][$cpzone]['vouchersyncdbip'])) {
|
|
453
|
if (!is_null($remote_time_used))
|
|
454
|
$total_minutes = $remote_time_used;
|
|
455
|
else if ($remote_time_used < $total_minutes)
|
|
456
|
$total_minutes -= $remote_time_used;
|
|
457
|
}
|
|
458
|
|
|
459
|
// All given vouchers were valid and this isn't simply a test.
|
|
460
|
// Write back the used DB's
|
|
461
|
if (is_array($bitstring)) {
|
|
462
|
foreach ($bitstring as $roll => $used) {
|
|
463
|
if(is_array($used)) {
|
|
464
|
foreach($used as $u)
|
|
465
|
voucher_write_used_db($roll, base64_encode($u));
|
|
466
|
} else {
|
|
467
|
voucher_write_used_db($roll, base64_encode($used));
|
|
468
|
}
|
|
469
|
}
|
|
470
|
}
|
|
471
|
|
|
472
|
// Active DB: we only add the first voucher if multiple given
|
|
473
|
// and give that one all the time credit. This allows the user to logout and
|
|
474
|
// log in later using just the first voucher. It also keeps username limited
|
|
475
|
// to one voucher and that voucher shows the correct time credit in 'active vouchers'
|
|
476
|
if (!empty($active_vouchers[$first_voucher_roll][$first_voucher])) {
|
|
477
|
list($timestamp, $minutes) = explode(",", $active_vouchers[$first_voucher_roll][$first_voucher]);
|
|
478
|
} else {
|
|
479
|
$timestamp = time(); // new voucher
|
|
480
|
$minutes = $total_minutes;
|
|
481
|
}
|
|
482
|
|
|
483
|
$active_vouchers[$first_voucher_roll][$first_voucher] = "$timestamp,$minutes";
|
|
484
|
voucher_write_active_db($first_voucher_roll, $active_vouchers[$first_voucher_roll]);
|
|
485
|
|
|
486
|
/* Trigger a sync of the vouchers on config */
|
|
487
|
send_event("service sync vouchers");
|
|
488
|
|
|
489
|
unlock($voucherlck);
|
|
490
|
|
|
491
|
return $total_minutes;
|
|
492
|
}
|
|
493
|
|
|
494
|
function voucher_configure($sync = false) {
|
|
495
|
global $config, $g, $cpzone;
|
|
496
|
|
|
497
|
if (is_array($config['voucher'])) {
|
|
498
|
foreach ($config['voucher'] as $voucherzone => $vcfg) {
|
|
499
|
if (platform_booting())
|
|
500
|
echo gettext("Enabling voucher support... ");
|
|
501
|
$cpzone = $voucherzone;
|
|
502
|
$error = voucher_configure_zone($sync);
|
|
503
|
if (platform_booting()) {
|
|
504
|
if ($error)
|
|
505
|
echo "error\n";
|
|
506
|
else
|
|
507
|
echo "done\n";
|
|
508
|
}
|
|
509
|
}
|
|
510
|
}
|
|
511
|
}
|
|
512
|
|
|
513
|
function voucher_configure_zone($sync = false) {
|
|
514
|
global $config, $g, $cpzone;
|
|
515
|
|
|
516
|
if (!isset($config['voucher'][$cpzone]['enable']))
|
|
517
|
return 0;
|
|
518
|
|
|
519
|
if ($sync == true)
|
|
520
|
captiveportal_syslog("Writing voucher db from sync data...");
|
|
521
|
|
|
522
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
523
|
|
|
524
|
/* write public key used to verify vouchers */
|
|
525
|
$pubkey = base64_decode($config['voucher'][$cpzone]['publickey']);
|
|
526
|
$fd = fopen("{$g['varetc_path']}/voucher_{$cpzone}.public", "w");
|
|
527
|
if (!$fd) {
|
|
528
|
captiveportal_syslog("Voucher error: cannot write voucher.public\n");
|
|
529
|
unlock($voucherlck);
|
|
530
|
return 1;
|
|
531
|
}
|
|
532
|
fwrite($fd, $pubkey);
|
|
533
|
fclose($fd);
|
|
534
|
@chmod("{$g['varetc_path']}/voucher_{$cpzone}.public", 0600);
|
|
535
|
|
|
536
|
/* write config file used by voucher binary to decode vouchers */
|
|
537
|
$fd = fopen("{$g['varetc_path']}/voucher_{$cpzone}.cfg", "w");
|
|
538
|
if (!$fd) {
|
|
539
|
printf(gettext("Error: cannot write voucher.cfg") . "\n");
|
|
540
|
unlock($voucherlck);
|
|
541
|
return 1;
|
|
542
|
}
|
|
543
|
fwrite($fd, "{$config['voucher'][$cpzone]['rollbits']},{$config['voucher'][$cpzone]['ticketbits']},{$config['voucher'][$cpzone]['checksumbits']},{$config['voucher'][$cpzone]['magic']},{$config['voucher'][$cpzone]['charset']}\n");
|
|
544
|
fclose($fd);
|
|
545
|
@chmod("{$g['varetc_path']}/voucher_{$cpzone}.cfg", 0600);
|
|
546
|
unlock($voucherlck);
|
|
547
|
|
|
548
|
if ((platform_booting() || $sync == true) && is_array($config['voucher'][$cpzone]['roll'])) {
|
|
549
|
|
|
550
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
551
|
|
|
552
|
// create active and used DB per roll on ramdisk from config
|
|
553
|
foreach ($config['voucher'][$cpzone]['roll'] as $rollent) {
|
|
554
|
|
|
555
|
$roll = $rollent['number'];
|
|
556
|
voucher_write_used_db($roll, $rollent['used']);
|
|
557
|
$minutes = $rollent['minutes'];
|
|
558
|
$active_vouchers = array();
|
|
559
|
$a_active = &$rollent['active'];
|
|
560
|
if (is_array($a_active)) {
|
|
561
|
foreach ($a_active as $activent) {
|
|
562
|
$voucher = $activent['voucher'];
|
|
563
|
$timestamp = $activent['timestamp'];
|
|
564
|
$minutes = $activent['minutes'];
|
|
565
|
// its tempting to check for expired timestamps, but during
|
|
566
|
// bootup, we most likely don't have the correct time.
|
|
567
|
$active_vouchers[$voucher] = "$timestamp,$minutes";
|
|
568
|
}
|
|
569
|
}
|
|
570
|
voucher_write_active_db($roll, $active_vouchers);
|
|
571
|
}
|
|
572
|
|
|
573
|
unlock($voucherlck);
|
|
574
|
}
|
|
575
|
|
|
576
|
return 0;
|
|
577
|
}
|
|
578
|
|
|
579
|
/* write bitstring of used vouchers to ramdisk.
|
|
580
|
* Bitstring must already be base64_encoded!
|
|
581
|
*/
|
|
582
|
function voucher_write_used_db($roll, $vdb) {
|
|
583
|
global $g, $cpzone;
|
|
584
|
|
|
585
|
$fd = fopen("{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db", "w");
|
|
586
|
if ($fd) {
|
|
587
|
fwrite($fd, $vdb . "\n");
|
|
588
|
fclose($fd);
|
|
589
|
} else
|
|
590
|
voucher_log(LOG_ERR, sprintf(gettext('cant write %1$s/voucher_%s_used_%2$s.db'), $g['vardb_path'], $cpzone, $roll));
|
|
591
|
}
|
|
592
|
|
|
593
|
/* return assoc array of active vouchers with activation timestamp
|
|
594
|
* voucher is index.
|
|
595
|
*/
|
|
596
|
function voucher_read_active_db($roll) {
|
|
597
|
global $g, $cpzone;
|
|
598
|
|
|
599
|
$active = array();
|
|
600
|
$dirty = 0;
|
|
601
|
$file = "{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db";
|
|
602
|
if (file_exists($file)) {
|
|
603
|
$fd = fopen($file, "r");
|
|
604
|
if ($fd) {
|
|
605
|
while (!feof($fd)) {
|
|
606
|
$line = trim(fgets($fd));
|
|
607
|
if ($line) {
|
|
608
|
list($voucher,$timestamp,$minutes) = explode(",", $line); // voucher,timestamp
|
|
609
|
if ((($timestamp + (60*$minutes)) - time()) > 0)
|
|
610
|
$active[$voucher] = "$timestamp,$minutes";
|
|
611
|
else
|
|
612
|
$dirty=1;
|
|
613
|
}
|
|
614
|
}
|
|
615
|
fclose($fd);
|
|
616
|
if ($dirty) { // if we found expired entries, lets save our snapshot
|
|
617
|
voucher_write_active_db($roll, $active);
|
|
618
|
|
|
619
|
/* Trigger a sync of the vouchers on config */
|
|
620
|
send_event("service sync vouchers");
|
|
621
|
}
|
|
622
|
}
|
|
623
|
}
|
|
624
|
return $active;
|
|
625
|
}
|
|
626
|
|
|
627
|
/* store array of active vouchers back to DB */
|
|
628
|
function voucher_write_active_db($roll, $active) {
|
|
629
|
global $g, $cpzone;
|
|
630
|
|
|
631
|
if (!is_array($active))
|
|
632
|
return;
|
|
633
|
$fd = fopen("{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db", "w");
|
|
634
|
if ($fd) {
|
|
635
|
foreach($active as $voucher => $value)
|
|
636
|
fwrite($fd, "$voucher,$value\n");
|
|
637
|
fclose($fd);
|
|
638
|
}
|
|
639
|
}
|
|
640
|
|
|
641
|
/* return how many vouchers are marked used on a roll */
|
|
642
|
function voucher_used_count($roll) {
|
|
643
|
global $g, $cpzone;
|
|
644
|
|
|
645
|
$bitstring = voucher_read_used_db($roll);
|
|
646
|
$max = strlen($bitstring) * 8;
|
|
647
|
$used = 0;
|
|
648
|
for ($i = 1; $i <= $max; $i++) {
|
|
649
|
// check if ticket already used or not.
|
|
650
|
$pos = $i >> 3; // divide by 8 -> octet
|
|
651
|
$mask = 1 << ($i % 8); // mask to test bit in octet
|
|
652
|
if (ord($bitstring[$pos]) & $mask)
|
|
653
|
$used++;
|
|
654
|
}
|
|
655
|
unset($bitstring);
|
|
656
|
|
|
657
|
return $used;
|
|
658
|
}
|
|
659
|
|
|
660
|
function voucher_read_used_db($roll) {
|
|
661
|
global $g, $cpzone;
|
|
662
|
|
|
663
|
$vdb = "";
|
|
664
|
$file = "{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db";
|
|
665
|
if (file_exists($file)) {
|
|
666
|
$fd = fopen($file, "r");
|
|
667
|
if ($fd) {
|
|
668
|
$vdb = trim(fgets($fd));
|
|
669
|
fclose($fd);
|
|
670
|
} else {
|
|
671
|
voucher_log(LOG_ERR, sprintf(gettext('cant read %1$s/voucher_%s_used_%2$s.db'), $g['vardb_path'], $cpzone, $roll));
|
|
672
|
}
|
|
673
|
}
|
|
674
|
return base64_decode($vdb);
|
|
675
|
}
|
|
676
|
|
|
677
|
function voucher_unlink_db($roll) {
|
|
678
|
global $g, $cpzone;
|
|
679
|
@unlink("{$g['vardb_path']}/voucher_{$cpzone}_used_$roll.db");
|
|
680
|
@unlink("{$g['vardb_path']}/voucher_{$cpzone}_active_$roll.db");
|
|
681
|
}
|
|
682
|
|
|
683
|
/* we share the log with captiveportal for now */
|
|
684
|
function voucher_log($priority, $message) {
|
|
685
|
|
|
686
|
$message = trim($message);
|
|
687
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
|
688
|
syslog($priority, sprintf(gettext("Voucher: %s"),$message));
|
|
689
|
closelog();
|
|
690
|
}
|
|
691
|
|
|
692
|
/* Save active and used voucher DB into XML config and write it to flash
|
|
693
|
* Called during reboot -> system_reboot_cleanup() and every active voucher change
|
|
694
|
*/
|
|
695
|
function voucher_save_db_to_config() {
|
|
696
|
global $config, $g, $cpzone;
|
|
697
|
|
|
698
|
if (is_array($config['voucher'])) {
|
|
699
|
foreach ($config['voucher'] as $voucherzone => $vcfg) {
|
|
700
|
$cpzone = $voucherzone;
|
|
701
|
voucher_save_db_to_config_zone();
|
|
702
|
}
|
|
703
|
}
|
|
704
|
}
|
|
705
|
|
|
706
|
function voucher_save_db_to_config_zone() {
|
|
707
|
global $config, $g, $cpzone;
|
|
708
|
|
|
709
|
if (!isset($config['voucher'][$cpzone]['enable']))
|
|
710
|
return; // no vouchers or don't want to save DB's
|
|
711
|
|
|
712
|
if (!is_array($config['voucher'][$cpzone]['roll']))
|
|
713
|
return;
|
|
714
|
|
|
715
|
$voucherlck = lock("voucher{$cpzone}", LOCK_EX);
|
|
716
|
|
|
717
|
// walk all active rolls and save runtime DB's to flash
|
|
718
|
$a_roll = &$config['voucher'][$cpzone]['roll'];
|
|
719
|
while (list($key, $value) = each($a_roll)) {
|
|
720
|
$rollent = &$a_roll[$key];
|
|
721
|
$roll = $rollent['number'];
|
|
722
|
$bitmask = voucher_read_used_db($roll);
|
|
723
|
$rollent['used'] = base64_encode($bitmask);
|
|
724
|
$active_vouchers = voucher_read_active_db($roll);
|
|
725
|
$db = array();
|
|
726
|
$dbi = 1;
|
|
727
|
foreach($active_vouchers as $voucher => $line) {
|
|
728
|
list($timestamp,$minutes) = explode(",", $line);
|
|
729
|
$activent['voucher'] = $voucher;
|
|
730
|
$activent['timestamp'] = $timestamp;
|
|
731
|
$activent['minutes'] = $minutes;
|
|
732
|
$db["v{$dbi}"] = $activent;
|
|
733
|
$dbi++;
|
|
734
|
}
|
|
735
|
$rollent['active'] = $db;
|
|
736
|
unset($active_vouchers);
|
|
737
|
}
|
|
738
|
|
|
739
|
unlock($voucherlck);
|
|
740
|
|
|
741
|
write_config("Syncing vouchers");
|
|
742
|
return;
|
|
743
|
}
|
|
744
|
|
|
745
|
?>
|