summaryrefslogtreecommitdiffstats
path: root/src/usr/local/www/graph.php
blob: f5ec63edcdd1c1d83f31f1e0cc8f11c7c1961177 (plain)
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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
<?php
/*
 * graph.php
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
 * Copyright (c) 2004-2006 T. Lechat <dev@lechat.org>
 * Copyright (c) 2004-2006 Jonathan Watt <jwatt@jwatt.org>
 * All rights reserved.
 *
 * originally based on m0n0wall (http://m0n0.ch/wall)
 * Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>.
 * 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.
 */

##|+PRIV
##|*IDENT=page-diagnostics-interfacetraffic
##|*NAME=Diagnostics: Interface Traffic
##|*DESCR=Allow access to the 'Diagnostics: Interface Traffic' page.
##|*MATCH=graph.php*
##|-PRIV

require_once("globals.inc");
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-cache, no-store, must-revalidate"); // HTTP/1.1
header("Pragma: no-cache"); // HTTP/1.0
header("Content-type: image/svg+xml");

/********** HTTP GET Based Conf ***********/
$ifnum = @$_GET["ifnum"];  // BSD / SNMP interface name / number
$ifnum = get_real_interface($ifnum);
$ifname = @$_GET["ifname"]?$_GET["ifname"]:"Interface $ifnum";  //Interface name that will be showed on top right of graph

/********* Other conf *******/
if (isset($config["widgets"]["trafficgraphs"]["scale_type"])) {
	$scale_type = $config["widgets"]["trafficgraphs"]["scale_type"];
} else {
	$scale_type = "up";
}

$nb_plot=120;                   //NB plot in graph
if ($_GET["timeint"]) {
	$time_interval = $_GET["timeint"];		//Refresh time Interval
} else {
	$time_interval = 3;
}

if ($_GET["initdelay"]) {
	$init_delay = $_GET["initdelay"];		//Initial Delay
} else {
	$init_delay = 3;
}

//SVG attributes
$attribs['axis']='fill="black" stroke="black"';
$attribs['in']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
$attribs['out']='fill="#000000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
$attribs['graph_in']='fill="none" stroke="#FF0000" stroke-opacity="0.8"';
$attribs['graph_out']='fill="none" stroke="#000000" stroke-opacity="0.8"';
$attribs['legend']='fill="black" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
$attribs['graphname']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="8"';
$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['switch_unit']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4" text-decoration="underline"';
$attribs['switch_scale']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4" text-decoration="underline"';
$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"';

//Error text if we cannot fetch data : depends on which method is used
$error_text = sprintf(gettext("Cannot get data about interface %s"), htmlspecialchars($ifnum));

$height=100;            //SVG internal height : do not modify
$width=200;             //SVG internal width : do not modify

$fetch_link = "ifstats.php?if=" . htmlspecialchars($ifnum);

/********* Graph DATA **************/
print('<?xml version="1.0" encoding="UTF-8"?>' . "\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']?>/>
		<path id="graph_out" d="M0 <?=$height?> L 0 <?=$height?>" <?=$attribs['graph_out']?>/>
		<path id="graph_in" d="M0 <?=$height?> L 0 <?=$height?>" <?=$attribs['graph_in']?>/>
		<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="<?=$width?>" y="<?=$height/4*1?>" <?=$attribs['grid_txt']?> text-anchor="end"> </text>
		<text id="grid_txt2" x="<?=$width?>" y="<?=$height/4*2?>" <?=$attribs['grid_txt']?> text-anchor="end"> </text>
		<text id="grid_txt3" x="<?=$width?>" y="<?=$height/4*3?>" <?=$attribs['grid_txt']?> text-anchor="end"> </text>
		<text id="graph_in_lbl" x="5" y="8" <?=$attribs['in']?>><?=gettext("In"); ?></text>
		<text id="graph_out_lbl" x="5" y="16" <?=$attribs['out']?>><?=gettext("Out"); ?></text>
		<text id="graph_in_txt" x="20" y="8" <?=$attribs['in']?>> </text>
		<text id="graph_out_txt" x="20" y="16" <?=$attribs['out']?>> </text>
		<text id="ifname" x="<?=$width?>" y="8" <?=$attribs['graphname']?> text-anchor="end"><?=htmlspecialchars($ifname)?></text>
		<text id="switch_unit" x="<?=$width*0.55?>" y="5" <?=$attribs['switch_unit']?>><?=gettext("Switch to bytes/s"); ?></text>
		<text id="switch_scale" x="<?=$width*0.55?>" y="11" <?=$attribs['switch_scale']?>><?=gettext("AutoScale"); ?> (<?=$scale_type?>)</text>
		<text id="date" x="<?=$width*0.33?>" y="5" <?=$attribs['legend']?>> </text>
		<text id="time" x="<?=$width*0.33?>" y="11" <?=$attribs['legend']?>> </text>
		<text id="graphlast" x="<?=$width*0.55?>" y="17" <?=$attribs['legend']?>><?=sprintf(gettext("Graph shows last %s seconds"), $time_interval*$nb_plot)?></text>
		<polygon id="axis_arrow_x" <?=$attribs['axis']?> points="<?=($width) . "," . ($height)?> <?=($width-2) . "," . ($height-2)?> <?=($width-2) . "," . $height?>"/>
		<text id="error" x="<?=$width*0.5?>" y="<?=$height*0.5?>" visibility="hidden" <?=$attribs['error']?> text-anchor="middle"><?=$error_text?></text>
		<text id="collect_initial" x="<?=$width*0.5?>" y="<?=$height*0.5?>" visibility="hidden" <?=$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_ifin = 0;
var last_ifout = 0;
var last_ugmt = 0;
var max = 0;
var plot_in = new Array();
var plot_out = new Array();

var max_num_points = <?=$nb_plot?>;  // maximum number of plot data points
var step = <?=$width?> / max_num_points ;
var unit = 'bits';
var scale_type = '<?=$scale_type?>';

function init(evt) {
	SVGDoc = evt.target.ownerDocument;
	SVGDoc.getElementById("switch_unit").addEventListener("mousedown", switch_unit, false);
	SVGDoc.getElementById("switch_scale").addEventListener("mousedown", switch_scale, false);

	fetch_data();
}

function switch_unit(event) {
	SVGDoc.getElementById('switch_unit').firstChild.data = '<?=gettext("Switch to"); ?> ' + unit + '/s';
	unit = (unit == 'bits') ? 'bytes' : 'bits';
}

function switch_scale(event) {
	scale_type = (scale_type == 'up') ? '<?=gettext("follow"); ?>' : '<?=gettext("up"); ?>';
	SVGDoc.getElementById('switch_scale').firstChild.data = 'AutoScale (' + scale_type + ')';
}

function fetch_data() {
	getURL('<?=$fetch_link?>', plot_data);
}

function plot_data(obj) {
	// Show datetimelegend
	var now = new Date();
	var time = LZ(now.getHours()) + ":" + LZ(now.getMinutes()) + ":" + LZ(now.getSeconds());
	SVGDoc.getElementById('time').firstChild.data = time;
	var date = (now.getMonth()+1) + "/" + now.getDate() + "/" + now.getFullYear();
	SVGDoc.getElementById('date').firstChild.data = date;

	if (!obj.success) {
		return handle_error();  // getURL failed to get data
	}

	var t = obj.content.split("|");
	var ugmt = parseFloat(t[0]);  // ugmt is an unixtimestamp style
	var ifin = parseInt(t[1], 10);    // number of bytes received by the interface
	var ifout = parseInt(t[2], 10);   // number of bytes sent by the interface
	var scale;

	if (!isNumber(ifin) || !isNumber(ifout)) {
		return handle_error();
	}

	var diff_ugmt  = ugmt - last_ugmt;
	var diff_ifin  = ifin - last_ifin;
	var diff_ifout = ifout - last_ifout;

	if (diff_ugmt == 0) {
		diff_ugmt = 1;  /* avoid division by zero */
	}

	last_ugmt = ugmt;
	last_ifin = ifin;
	last_ifout = ifout;
	var graphTimerId = 0;
	switch (plot_in.length) {
		case 0:
			SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'visible');
			plot_in[0] = diff_ifin / diff_ugmt;
			plot_out[0] = diff_ifout / diff_ugmt;
			setTimeout('fetch_data()', <?=1000*($time_interval + $init_delay)?>);
			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) {
				plot_in[i] = plot_in[i+1];
				plot_out[i] = plot_out[++i];
			}
			plot_in.length--;
			plot_out.length--;
	}

	plot_in[plot_in.length] = diff_ifin / diff_ugmt;
	plot_out[plot_out.length]= diff_ifout / diff_ugmt;
	var index_plot = plot_in.length - 1;

	SVGDoc.getElementById('graph_in_txt').firstChild.data = formatSpeed(plot_in[index_plot], unit);
	SVGDoc.getElementById('graph_out_txt').firstChild.data = formatSpeed(plot_out[index_plot], unit);

	/* determine peak for sensible scaling */
	if (scale_type == 'up') {
		if (plot_in[index_plot] > max) {
			max = plot_in[index_plot];
		}
		if (plot_out[index_plot] > max) {
			max = plot_out[index_plot];
		}
	} else if (scale_type == 'follow') {
		i = 0;
		max = 0;
		while (i < plot_in.length) {
			if (plot_in[i] > max) {
				max = plot_in[i];
			}
			if (plot_out[i] > max) {
				max = plot_out[i];
			}
			i++;
		}
	}

	var rmax;  // max, rounded up

	if (unit == 'bits') {
		/* round up max, such that
		   100 kbps -> 200 kbps -> 400 kbps -> 800 kbps -> 1 Mbps -> 2 Mbps -> ... */
		rmax = 12500;
		i = 0;
		while (max > rmax) {
			i++;
			if (i && (i % 4 == 0)) {
				rmax *= 1.25;
			} else {
				rmax *= 2;
			}
		}
	} else {
		/* round up max, such that
		   10 KB/s -> 20 KB/s -> 40 KB/s -> 80 KB/s -> 100 KB/s -> 200 KB/s -> 400 KB/s -> 800 KB/s -> 1 MB/s ... */
		rmax = 10240;
		i = 0;
		while (max > rmax) {
			i++;
			if (i && (i % 4 == 0)) {
				rmax *= 1.25;
			} else {
				rmax *= 2;
			}

			if (i == 8) {
				rmax *= 1.024;
			}
		}
	}

	scale = <?=$height?> / rmax;

	/* change labels accordingly */
	SVGDoc.getElementById('grid_txt1').firstChild.data = formatSpeed(3*rmax/4, unit);
	SVGDoc.getElementById('grid_txt2').firstChild.data = formatSpeed(2*rmax/4, unit);
	SVGDoc.getElementById('grid_txt3').firstChild.data = formatSpeed(rmax/4, unit);

	var path_in = "M 0 " + (<?=$height?> - (plot_in[0] * scale));
	var path_out = "M 0 " + (<?=$height?> - (plot_out[0] * scale));
	for (i = 1; i < plot_in.length; i++) {
		var x = step * i;
		var y_in = <?=$height?> - (plot_in[i] * scale);
		var y_out = <?=$height?> - (plot_out[i] * scale);
		path_in += " L" + x + " " + y_in;
		path_out += " L" + x + " " + y_out;
	}

	SVGDoc.getElementById('error').setAttributeNS(null, 'visibility', 'hidden');
	SVGDoc.getElementById('graph_in').setAttributeNS(null, 'd', path_in);
	SVGDoc.getElementById('graph_out').setAttributeNS(null, 'd', path_out);

	setTimeout('fetch_data()', <?=1000*$time_interval?>);
}

function handle_error() {
	SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible');
	setTimeout('fetch_data()', <?=1000*$time_interval?>);
}

function isNumber(a) {
	return typeof a == 'number' && isFinite(a);
}

function formatSpeed(speed, unit) {
	if (unit == 'bits') {
		return formatSpeedBits(speed);
	}
	if (unit == 'bytes') {
		return formatSpeedBytes(speed);
	}
}

function formatSpeedBits(speed) {
	// format speed in bits/sec, input: bytes/sec
	if (speed < 125000) {
		return Math.round(speed / 125) + " <?=gettext("Kbps"); ?>";
	}
	if (speed < 125000000) {
		return Math.round(speed / 1250)/100 + " <?=gettext("Mbps"); ?>";
	}
	// else
	return Math.round(speed / 1250000)/100 + " <?=gettext("Gbps"); ?>";  /* wow! */
}

function formatSpeedBytes(speed) {
	// format speed in bytes/sec, input:  bytes/sec
	if (speed < 1048576) {
		return Math.round(speed / 10.24)/100 + " <?=gettext("KB/s"); ?>";
	}
	if (speed < 1073741824) {
		return Math.round(speed / 10485.76)/100 + " <?=gettext("MB/s"); ?>";
	}
	// else
	return Math.round(speed / 10737418.24)/100 + " <?=gettext("GB/s"); ?>";  /* wow! */
}

function LZ(x) {
	return (x < 0 || x > 9 ? "" : "0") + x;
}

    ]]>
	</script>
</svg>
OpenPOWER on IntegriCloud