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cacti/graph_realtime.php
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PHP

<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2015 The Cacti Group |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
+-------------------------------------------------------------------------+
| Cacti: The Complete RRDTool-based Graphing Solution |
+-------------------------------------------------------------------------+
| This code is designed, written, and maintained by the Cacti Group. See |
| about.php and/or the AUTHORS file for specific developer information. |
+-------------------------------------------------------------------------+
| http://www.cacti.net/ |
+-------------------------------------------------------------------------+
*/
$guest_account = true;
include('./include/auth.php');
include_once('./lib/rrd.php');
if (!isset($_REQUEST['action'])) {
$_REQUEST['action'] = '';
}
switch ($_REQUEST['action']) {
case 'init':
case 'timespan':
case 'interval':
case 'countdown':
ob_start();
$guest_account = true;
/* ================= input validation ================= */
input_validate_input_number(get_request_var_request('graph_start'));
input_validate_input_number(get_request_var_request('graph_end'));
input_validate_input_number(get_request_var_request('graph_height'));
input_validate_input_number(get_request_var_request('graph_width'));
input_validate_input_number(get_request_var_request('local_graph_id'));
input_validate_input_number(get_request_var_request('ds_step'));
input_validate_input_number(get_request_var_request('count'));
input_validate_input_number(get_request_var_request('top'));
input_validate_input_number(get_request_var_request('left'));
/* ==================================================== */
/* clean up action string */
if (isset($_REQUEST['action'])) {
$_REQUEST['action'] = sanitize_search_string(get_request_var('action'));
}
switch ($_REQUEST['action']) {
case 'init':
load_current_session_value('ds_step', 'sess_realtime_ds_step', read_config_option('realtime_interval'));
load_current_session_value('graph_start', 'sess_realtime_graph_start', read_config_option('realtime_gwindow'));
break;
case 'timespan':
load_current_session_value('graph_start', 'sess_realtime_graph_start', read_config_option('realtime_gwindow'));
break;
case 'interval':
load_current_session_value('ds_step', 'sess_realtime_ds_step', read_config_option('realtime_interval'));
break;
case 'countdown':
/* do nothing */
break;
}
$graph_data_array = array();
/* ds */
$graph_data_array['ds_step'] = read_config_option('realtime_interval');
if (!empty($_REQUEST['ds_step'])) {
$graph_data_array['ds_step'] = (int)$_REQUEST['ds_step'];
$_SESSION['sess_realtime_dsstep'] = $_REQUEST['ds_step'];
}
/* override: graph height (in pixels) */
if (!empty($_REQUEST['graph_height']) && $_REQUEST['graph_height'] < 3000) {
$graph_data_array['graph_height'] = $_REQUEST['graph_height'];
}
/* override: graph width (in pixels) */
if (!empty($_REQUEST['graph_width']) && $_REQUEST['graph_width'] < 3000) {
$graph_data_array['graph_width'] = $_REQUEST['graph_width'];
}
/* override: skip drawing the legend? */
if (!empty($_REQUEST['graph_nolegend'])) {
$graph_data_array['graph_nolegend'] = $_REQUEST['graph_nolegend'];
$graph_data_array['graph_width'] = read_graph_config_option('default_width');
$graph_data_array['graph_height'] = read_graph_config_option('default_height');
}
/* override: graph start */
if (!empty($_REQUEST['graph_start'])) {
$graph_data_array['graph_start'] = $_REQUEST['graph_start'];
$_SESSION['sess_realtime_window'] = $_REQUEST['ds_step'];
}
/* override: graph end */
if (!empty($_REQUEST['graph_end'])) {
$graph_data_array['graph_end'] = $_REQUEST['graph_end'];
}
/* print RRDTool graph source? */
if (!empty($_REQUEST['show_source'])) {
$graph_data_array['print_source'] = $_REQUEST['show_source'];
}
/* check ds */
if ($graph_data_array['ds_step'] < 1) {
$graph_data_array['ds_step'] = read_config_option('realtime_interval');
}
/* call poller */
$command = read_config_option('path_php_binary');
$args = sprintf('poller_realtime.php --graph=%s --interval=%d --poller_id=' . session_id(), $_REQUEST['local_graph_id'], $graph_data_array['ds_step']);
shell_exec("$command $args");
/* construct the image name */
$graph_data_array['export_realtime'] = read_config_option('realtime_cache_path') . '/user_' . session_id() . '_lgi_' . $_REQUEST['local_graph_id'] . '.png';
$graph_data_array['output_flag'] = RRDTOOL_OUTPUT_GRAPH_DATA;
rrdtool_function_graph($_REQUEST['local_graph_id'], '', $graph_data_array);
/* send text information back to browser as well as image information */
$return_array = array(
'local_graph_id' => $_REQUEST['local_graph_id'],
'top' => $_REQUEST['top'],
'left' => $_REQUEST['left'],
'ds_step' => (isset($_SESSION['sess_realtime_ds_step']) ? $_SESSION['sess_realtime_ds_step']:$graph_data_array['ds_step']),
'graph_start' => (isset($_SESSION['sess_realtime_graph_start']) ? $_SESSION['sess_realtime_graph_start']:$graph_data_array['graph_start']),
);
print json_encode($return_array);
exit;
break;
case 'view':
$graph_rrd = read_config_option('realtime_cache_path') . '/user_' . session_id() . '_lgi_' . $_REQUEST['local_graph_id'] . '.png';
if (file_exists($graph_rrd)) {
print file_get_contents($graph_rrd);
}
exit;
break;
}
/* ================= input validation ================= */
input_validate_input_number(get_request_var_request('ds_step'));
input_validate_input_number(get_request_var_request('local_graph_id'));
input_validate_input_number(get_request_var_request('graph_start'));
/* ==================================================== */
$init = '';
if (!isset($_SESSION['sess_realtime_ds_step'])) {
load_current_session_value('ds_step', 'sess_realtime_ds_step', read_config_option('realtime_interval'));
}else{
$_REQUEST['ds_step'] = $_SESSION['sess_realtime_ds_step'];
}
if (!isset($_SESSION['sess_realtime_graph_start'])) {
load_current_session_value('graph_start', 'sess_realtime_graph_start', read_config_option('realtime_gwindow'));
}else{
$_REQUEST['graph_start'] = $_SESSION['sess_realtime_graph_start'];
}
if (read_config_option('realtime_enabled') == '') {
print "<html>\n";
print "<body>\n";
print " <p><strong>Realtime has been disabled by your administrator.</strong></p>\n";
print "</body>\n";
print "</html>\n";
exit;
}elseif (!is_dir(read_config_option('realtime_cache_path'))) {
print "<html>\n";
print "<body>\n";
print " <p><strong>The Image Cache Directory directory does not exist. Please first create it and set permissions and then attempt to open another realtime graph.</strong></p>\n";
print "</body>\n";
print "</html>\n";
exit;
}elseif (!is_writable(read_config_option('realtime_cache_path'))) {
print "<html>\n";
print "<body>\n";
print " <p><strong>The Image Cache Directory is not writable. Please set permissions and then attempt to open another realtime graph.</strong></p>\n";
print "</body>\n";
print "</html>\n";
exit;
}
?>
<html>
<head>
<meta http-equiv='X-UA-Compatible' content='edge'>
<meta content='width=720, initial-scale=1.2, maximum-scale=1.2, minimum-scale=1.2' name='viewport'>
<title>Cacti Realtime Graphing</title>
<meta http-equiv='Content-Type' content='text/html;charset=utf-8'>
<link href='<?php echo $config['url_path']; ?>include/themes/<?php print read_config_option('selected_theme');?>/main.css' type='text/css' rel='stylesheet'>
<link href='<?php echo $config['url_path']; ?>include/themes/<?php print read_config_option('selected_theme');?>/jquery.zoom.css' type='text/css' rel='stylesheet'>
<link href='<?php echo $config['url_path']; ?>include/themes/<?php print read_config_option('selected_theme');?>/jquery-ui.css' type='text/css' rel='stylesheet'>
<link href='<?php echo $config['url_path']; ?>include/themes/<?php print read_config_option('selected_theme');?>/default/style.css' type='text/css' rel='stylesheet'>
<link href='<?php echo $config['url_path']; ?>include/fa/css/font-awesome.css' type='text/css' rel='stylesheet'>
<link href='<?php echo $config['url_path']; ?>images/favicon.ico' rel='shortcut icon'>
<?php api_plugin_hook('page_head'); ?>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/js/jquery.js' language='javascript'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/js/jquery-ui.js' language='javascript'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/js/jquery.cookie.js' language='javascript'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/js/jstree.js'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/js/jquery.hotkeys.js'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/js/jquery.zoom.js' language='javascript'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/jscalendar/calendar.js'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/jscalendar/lang/calendar-en.js'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/jscalendar/calendar-setup.js'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/layout.js'></script>
<script type='text/javascript' src='<?php echo $config['url_path']; ?>include/themes/<?php print read_config_option('selected_theme');?>/main.js'></script>
<?php include($config['base_path'] . '/include/global_session.php'); api_plugin_hook('page_head'); ?>
</head>
<body style='text-align: center; padding: 5px 0px 5px 0px; margin: 5px 0px 5px 0px;'>
<form method='post' action='graph_popup_rt.php' id='gform'>
<div>
<table align='center'>
<tr>
<td>
<strong>Timespan</strong>
</td>
<td>
<select name='graph_start' id='graph_start' onChange='self.imageOptionsChanged("timespan")'>
<?php
foreach ($realtime_window as $interval => $text) {
printf('<option value="%d"%s>%s</option>',
$interval, $interval == abs($_REQUEST['graph_start']) ? ' selected="selected"' : '', $text
);
}
?>
</select>
</td>
<td>
<strong>Interval</strong>
</td>
<td>
<select name='ds_step' id='ds_step' onChange="self.imageOptionsChanged('interval')">
<?php
foreach ($realtime_refresh as $interval => $text) {
printf('<option value="%d"%s>%s</option>',
$interval, $interval == $_REQUEST['ds_step'] ? ' selected="selected"' : '', $text
);
}
?>
</select>
</td>
</tr>
<tr>
<td align='center' colspan='6'>
<span id='countdown'><strong><?php echo $_REQUEST['ds_step']; ?> seconds left.</strong></span>
</td>
</tr>
</table>
</div>
<br>
<div id='image'>
<i id='imaging' style='font-size:40px;' class='fa fa-spin fa-circle-o-notch'></i>
</div>
<input type='hidden' id='url_path' name='url_path' value='<?php echo $config['url_path'];?>'/>
<input type='hidden' id='local_graph_id' name='local_graph_id' value='<?php echo $_REQUEST['local_graph_id']; ?>'/>
<script type='text/javascript'>
var url;
var ds_step = 0;
var sizeset = false;
var count = 0;
var browser = "";
function countdown_update() {
ds_step--;
if (ds_step < 0) {
ds_step = $("#ds_step").val();
imageOptionsChanged('countdown');
sizeset = false;
}
$('#countdown').html( '<strong>' + ds_step + ' seconds left.</strong>');
browser = realtimeDetectBrowser();
/* set the window size */
height = $(".graphimage").height();
width = $(".graphimage").width();
if (height > 40) {
if (browser == "IE") {
width = width + 30;
height = height + 110;
}else{
width = width + 40;
height = height + 165;
}
if (sizeset == false) {
if (browser == "FF") {
window.outerHeight = height;
window.outerWidth = width;
}else{
window.resizeTo(width, height);
}
sizeset = true;
}
}
count++;
setTimeout('countdown_update()', 1000);
}
setTimeout('countdown_update()', 1000);
function realtimeDetectBrowser() {
if (navigator.userAgent.indexOf('MSIE') >= 0) {
browser = "IE";
}else if (navigator.userAgent.indexOf('Chrome') >= 0) {
browser = 'Chrome';
}else if (navigator.userAgent.indexOf('Mozilla') >= 0) {
browser = "FF";
}else if (navigator.userAgent.indexOf('Opera') >= 0) {
browser = "Opera";
}else{
browser = "Other";
}
return browser;
}
$(function() {
imageOptionsChanged('init');
});
function imageOptionsChanged(action) {
graph_start = $("#graph_start").val();
graph_end = 0;
local_graph_id = $("#local_graph_id").val();
ds_step = $("#ds_step").val();
url="?top=0&left=0&action="+action+"&graph_start=-"+graph_start+"&local_graph_id="+local_graph_id+"&ds_step="+ds_step+"&count="+count;
$.get(url, function(data) {
results = $.parseJSON(data);
$('#image').empty().html("<img id='graph_"+local_graph_id+"' class='graphimage' alt='' src='graph_realtime.php?action=view&local_graph_id="+local_graph_id+"&count="+count+"'/>").change();
});
}
</script>
</form>
</body>
</html>