Added Captive Portal RRD graphs, there are two graphs one for the number of logged in users since last rrd poll, and concurrent number of users logged in.

1 files changed, 106 insertions, 0 deletions

diff --git a/usr/local/bin/captiveportal_gather_stats.php b/usr/local/bin/captiveportal_gather_stats.php
new file mode 100644
index 0000000..5fe1c6b
--- /dev/null
+++ b/usr/local/bin/captiveportal_gather_stats.php
@@ -0,0 +1,106 @@
+#!/usr/local/bin/php -q
+<?php
+/* $Id$ */
+/*
+        captiveportal_gather_stats.php
+        Copyright (C) 2011 Warren Baker
+        All rights reserved.
+
+        Redistribution and use in source and binary forms, with or without
+        modification, are permitted provided that the following conditions are met:
+
+        1. Redistributions of source code must retain the above copyright notice,
+           this list of conditions and the following disclaimer.
+
+        2. Redistributions in binary form must reproduce the above copyright
+           notice, this list of conditions and the following disclaimer in the
+           documentation and/or other materials provided with the distribution.
+
+        THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+        INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+        AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+        AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+        OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+        SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+        INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+        CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+        ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+        POSSIBILITY OF SUCH DAMAGE.
+*/
+
+require_once("functions.inc");
+require_once("captiveportal.inc");
+require_once("util.inc");
+
+/* 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['tmp_path']}/captiveportal_online_users";
+
+$type = $argv[1];
+
+if(empty($type))
+	exit;
+
+/* echo the rrd required syntax */
+echo "N:";
+
+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
+	$fd = @fopen($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;
+	}
+} else
+	$result = $no_users;
+
+	
+echo "$result";
+	
+?>
\ No newline at end of file