1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
<?php
/*
$Id$
part of m0n0wall (http://m0n0.ch/wall)
Copyright (C) 2013-2015 Electric Sheep Fencing, LP
Copyright (C) 2004-2005 T. Lechat <dev@lechat.org>, Manuel Kasper <mk@neon1.net>
and Jonathan Watt <jwatt@jwatt.org>.
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.
*/
/*
pfSense_MODULE: graph
*/
##|+PRIV
##|*IDENT=page-diagnostics-cpuutilization
##|*NAME=Diagnostics: CPU Utilization page
##|*DESCR=Allow access to the 'Diagnostics: CPU Utilization' page.
##|*MATCH=graph_cpu.php*
##|-PRIV
require_once("guiconfig.inc");
header("Last-Modified: " . gmdate( "D, j M Y H:i:s" ) . " GMT" );
header("Expires: " . gmdate( "D, j M Y H:i:s", time() ) . " GMT" );
header("Cache-Control: no-store, no-cache, must-revalidate" ); // HTTP/1.1
header("Cache-Control: post-check=0, pre-check=0", FALSE );
header("Pragma: no-cache"); // HTTP/1.0
header("Content-type: image/svg+xml");
/********* Other conf *******/
$nb_plot = 120; // maximum number of data points to plot in the graph
$fetch_link = "stats.php?stats=cpu";
//SVG attributes
$attribs['axis']='fill="black" stroke="black"';
$attribs['cpu']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
$attribs['graph_cpu']='fill="none" stroke="#FF0000" stroke-opacity="0.8"';
$attribs['legend']='fill="black" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
$attribs['grid_txt']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="6"';
$attribs['grid']='stroke="gray" stroke-opacity="0.5"';
$attribs['error']='fill="blue" font-family="Arial" font-size="4"';
$attribs['collect_initial']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
$height=100; // SVG internal height : do not modify
$width=200; // SVG internal width : do not modify
/********* Graph DATA **************/
print('<?xml version="1.0" ?>' . "\n");?>
<svg width="100%" height="100%" viewBox="0 0 <?=$width?> <?=$height?>" preserveAspectRatio="none" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" onload="init(evt);">
<g id="graph">
<rect id="bg" x1="0" y1="0" width="100%" height="100%" fill="white"/>
<line id="axis_x" x1="0" y1="0" x2="0" y2="100%" <?=$attribs['axis']?>/>
<line id="axis_y" x1="0" y1="100%" x2="100%" y2="100%" <?=$attribs['axis']?>/>
<polygon id="axis_arrow_x" <?=$attribs['axis']?> points="<?=($width) . "," . ($height)?> <?=($width-2) . "," . ($height-2)?> <?=($width-2) . "," . $height?>"/>
<path id="graph_cpu" d="" <?=$attribs['graph_cpu']?>/>
<path id="grid" d="M0 <?=$height/4*1?> L <?=$width?> <?=$height/4*1?> M0 <?=$height/4*2?> L <?=$width?> <?=$height/4*2?> M0 <?=$height/4*3?> L <?=$width?> <?=$height/4*3?>" <?=$attribs['grid']?>/>
<text id="grid_txt1" x="100%" y="25%" <?=$attribs['grid_txt']?> text-anchor="end">75%</text>
<text id="grid_txt2" x="100%" y="50%" <?=$attribs['grid_txt']?> text-anchor="end">50%</text>
<text id="grid_txt3" x="100%" y="75%" <?=$attribs['grid_txt']?> text-anchor="end">25%</text>
<text id="graph_cpu_txt" x="4" y="8" <?=$attribs['cpu']?>> </text>
<text id="error" x="50%" y="50%" visibility="hidden" <?=$attribs['error']?> text-anchor="middle"><?=gettext("Cannot get CPU load"); ?></text>
<text id="collect_initial" x="50%" y="50%" visibility="hidden" <?=$attribs['collect_initial']?> text-anchor="middle"><?=gettext("Collecting initial data, please wait"); ?>...</text>
</g>
<script type="text/ecmascript">
<![CDATA[
/**
* getURL is a proprietary Adobe function, but it's simplicity has made it very
* popular. If getURL is undefined we spin our own by wrapping XMLHttpRequest.
*/
if (typeof getURL == 'undefined') {
getURL = function(url, callback) {
if (!url)
throw '<?=gettext("No URL for getURL"); ?>';
try {
if (typeof callback.operationComplete == 'function')
callback = callback.operationComplete;
} catch (e) {}
if (typeof callback != 'function')
throw '<?=gettext("No callback function for getURL"); ?>';
var http_request = null;
if (typeof XMLHttpRequest != 'undefined') {
http_request = new XMLHttpRequest();
}
else if (typeof ActiveXObject != 'undefined') {
try {
http_request = new ActiveXObject('Msxml2.XMLHTTP');
} catch (e) {
try {
http_request = new ActiveXObject('Microsoft.XMLHTTP');
} catch (e) {}
}
}
if (!http_request)
throw '<?=gettext("Both getURL and XMLHttpRequest are undefined"); ?>';
http_request.onreadystatechange = function() {
if (http_request.readyState == 4) {
callback( { success : true,
content : http_request.responseText,
contentType : http_request.getResponseHeader("Content-Type") } );
}
}
http_request.open('GET', url, true);
http_request.send(null);
}
}
var SVGDoc = null;
var last_cpu_total = 0;
var last_cpu_idle = 0;
var diff_cpu_total = 0;
var diff_cpu_idle = 0;
var cpu_data = new Array();
var max_num_points = <?=$nb_plot?>; // maximum number of plot data points
var step = <?=$width?> / max_num_points; // plot X division size
var scale = <?=$height?> / 100;
function init(evt) {
SVGDoc = evt.target.ownerDocument;
fetch_data();
}
function fetch_data() {
getURL('<?=$fetch_link?>', plot_cpu_data);
}
function plot_cpu_data(obj) {
if (!obj.success)
return handle_error(); // getURL failed to get current CPU load data
var cpu = parseInt(obj.content);
if (!isNumber(cpu))
return handle_error();
switch (cpu_data.length) {
case 0:
SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'visible');
cpu_data[0] = cpu;
fetch_data();
return;
case 1:
SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'hidden');
break;
case max_num_points:
// shift plot to left if the maximum number of plot points has been reached
var i = 0;
while (i < max_num_points) {
cpu_data[i] = cpu_data[++i];
}
--cpu_data.length;
}
cpu_data[cpu_data.length] = cpu;
var path_data = "M 0 " + (<?=$height?> - (cpu_data[0] * scale));
for (var i = 1; i < cpu_data.length; ++i) {
var x = step * i;
var y_cpu = <?=$height?> - (cpu_data[i] * scale);
path_data += " L" + x + " " + y_cpu;
}
SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'hidden');
SVGDoc.getElementById('graph_cpu_txt').firstChild.data = cpu + '%';
SVGDoc.getElementById('graph_cpu').setAttributeNS(null, "d", path_data);
fetch_data();
}
function handle_error() {
SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible');
fetch_data();
}
function isNumber(a) {
return typeof a == 'number' && isFinite(a);
}
]]>
</script>
</svg>
|
