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#!/usr/local/bin/php-cgi -q
<?php
/*
* captiveportal_gather_stats.php
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2011 Warren Baker
* Copyright (c) 2013-2016 Electric Sheep Fencing, LLC
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
require_once("functions.inc");
require_once("captiveportal.inc");
require_once("util.inc");
global $cpzone;
$cpzone = $argv[1];
$type = $argv[2];
/* read in captive portal db */
$cpdb = captiveportal_read_db();
/* determine number of logged in users */
$no_users = count($cpdb);
$concurrent_users = $no_users;
/* set initial user count to zero */
$current_user_count = 0;
/* tmp file to use to store old data (per interface)*/
$tmpfile = "{$g['vardb_path']}/captiveportal_online_users";
if (empty($type)) {
exit;
}
/* echo the rrd required syntax */
echo "N:";
$result = "NaN";
if ($type == "loggedin") {
/* Find out the previous user timestamp
* so we can determine the difference between the current
* and previous user count. If the file is empty return a 0.
*/
$fd = @fopen($tmpfile, "r");
if ($fd) {
while (!feof($fd)) {
$line = trim(fgets($fd));
if ($line) {
$previous_user_timestamp = $line;
} else {
$previous_user_timestamp = 0;
}
}
} else {
$previous_user_timestamp = 0;
}
@fclose($fd);
foreach ($cpdb as $user) {
$user_ip = $user[2];
// Record the timestamp
$timestamp = $user[0];
if ($timestamp > $previous_user_timestamp) {
$current_user_count = $current_user_count + 1;
}
}
// Write out the latest timestamp but not if it is empty
if (!empty($timestamp)) {
$fd = @fopen($tmpfile, "w");
if ($fd) {
fwrite($fd, $timestamp);
}
@fclose($fd);
}
/* If $timestamp is less than or equal to previous_user_timestamp return 0,
* as we only want the 'X' number of users logged in since last RRD poll.
*/
if ($timestamp <= $previous_user_timestamp) {
$result = 0;
} else {
$result = $current_user_count;
}
} elseif ($type == "concurrent") {
$result = $no_users;
}
echo "$result";
?>
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