1: <?php // test.graph.php
  2: ob_start();
  3: /* -------------------------------------------------------------
  4: This file is part of FreeNATS
  5: 
  6: FreeNATS is (C) Copyright 2008 PurplePixie Systems
  7: 
  8: FreeNATS is free software: you can redistribute it and/or modify
  9: it under the terms of the GNU General Public License as published by
 10: the Free Software Foundation, either version 3 of the License, or
 11: (at your option) any later version.
 12: 
 13: FreeNATS is distributed in the hope that it will be useful,
 14: but WITHOUT ANY WARRANTY; without even the implied warranty of
 15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16: GNU General Public License for more details.
 17: 
 18: You should have received a copy of the GNU General Public License
 19: along with FreeNATS.  If not, see www.gnu.org/licenses
 20: 
 21: For more information see www.purplepixie.org/freenats
 22: -------------------------------------------------------------- */
 23: 
 24: require("include.php");
 25: $NATS->Start();
 26: 
 27: 
 28: 
 29: 
 30: function ty($y)
 31: {
 32: global $height;
 33: return $height-$y;
 34: }
 35: 
 36: //if (!isset($_REQUEST['testid'])) $_REQUEST['testid']="L26";
 37: 
 38: // width height suid startx finishx
 39: 
 40: if (isset($_REQUEST['width'])) $width=$_REQUEST['width'];
 41: else $width=700;
 42: if (isset($_REQUEST['height'])) $height=$_REQUEST['height'];
 43: else $height=150;
 44: 
 45: // other incoming stuff
 46: if (isset($_REQUEST['draw_spike'])) $draw_spike=$_REQUEST['draw_spike'];
 47: else $draw_spike=1;
 48: if (isset($_REQUEST['draw_track'])) $draw_track=$_REQUEST['draw_track'];
 49: else $draw_track=1;
 50: if (isset($_REQUEST['draw_under'])) $draw_under=$_REQUEST['draw_under'];
 51: else $draw_under=1;
 52: if (isset($_REQUEST['draw_under_pass'])) $draw_under=$_REQUEST['draw_under_pass'];
 53: else $draw_under_pass=0;
 54: 
 55: 
 56: // start image
 57: $im=@imagecreate($width,$height)
 58: 	or die("Cannot create image");
 59: 
 60: // setup colours
 61: $col=array();
 62: $col['white']=imagecolorallocate($im,255,255,255);
 63: $col['black']=imagecolorallocate($im,0,0,0);
 64: $col['red']=imagecolorallocate($im,250,50,50);
 65: $col['lightgrey']=imagecolorallocate($im,200,200,200);
 66: $col['blue']=imagecolorallocate($im,150,150,255);
 67: $col['green']=imagecolorallocate($im,0,200,0);
 68: $col['lightgreen']=imagecolorallocate($im,150,250,150);
 69: $col['grey']=imagecolorallocate($im,150,150,150);
 70: $col['orange']=imagecolorallocate($im,200,200,0);
 71: 
 72: if (isset($_REQUEST['bgcol'])) $c_bg=$col[$_REQUEST['bgcol']];
 73: else $c_bg=$col['white'];
 74: 
 75: if (isset($_REQUEST['txtcol'])) $c_txt=$col[$_REQUEST['txtcol']];
 76: else $c_txt=$col['black'];
 77: 
 78: if (isset($_REQUEST['axescol'])) $c_axes=$col[$_REQUEST['axescol']];
 79: else $c_axes=$col['lightgrey'];
 80: 
 81: if (isset($_REQUEST['trackcol'])) $c_track=$col[$_REQUEST['trackcol']];
 82: else $c_track=$col['blue'];
 83: 
 84: // fill background
 85: imagefill($im,1,1,$c_bg);
 86: 	
 87: function ierror($t)
 88: {
 89: global $im,$width,$height,$col;
 90: header("Content-type: image/png");
 91: imagestring($im,2,($width/2)-20,$height/2,"ERROR: ".$t,$col['red']);
 92: imagepng($im);
 93: imagedestroy($im);
 94: exit();
 95: }
 96: 
 97: if ( $NATS->Cfg->Get("site.graph.public",0)!=1 )
 98: 	{
 99: 	if (!$NATS_Session->Check($NATS->DB))
100: 		{
101: 		ierror("Authorisation Failure");
102: 		exit();
103: 		}
104: 	if ($NATS_Session->userlevel<1) ierror("User Disabled");
105: 	}
106: 
107: if (!isset($_REQUEST['nodeid'])) $nodeid="";
108: else $nodeid=$_REQUEST['nodeid'];
109: 
110: if (!isset($_REQUEST['testid'])) ierror("No test ID");
111: 
112: $day=date("d");
113: $month=date("m");
114: $year=date("Y");
115: 
116: if (isset($_REQUEST['startx'])) $startx=$_REQUEST['startx'];
117: else
118: 	{ // 0:00 today    HMS mo da yr
119: 	$startx=mktime(0,0,0,$month,$day,$year);
120: 	//$startx=1203451396;
121: 	}
122: 	
123: if (isset($_REQUEST['finishx'])) $finishx=$_REQUEST['finishx'];
124: else $finishx=mktime(23,59,59,$month,$day,$year);
125: 
126: if ($startx<=0) $startx=time()+$startx;
127: if ($finishx<=0) $finishx=time()+$finishx;
128: 
129: //$finishx=1203454996;
130: $periodx=$finishx-$startx;
131: $startt=date("H:i:s d/m/y",$startx);
132: $finisht=date("H:i:s d/m/y",$finishx);
133: 
134: 
135: // titles and stuff
136: imagestring($im,2,2,2,$startt,$c_txt);
137: // -90 for size 1
138: imagestring($im,2,$width-108,2,$finisht,$c_txt);
139: 
140: if (isset($_REQUEST['title'])) $title=$_REQUEST['title'];
141: else $title=$nodeid;
142: $len=strlen($title)*4;
143: imagestring($im,4,($width/2)-$len,2,$title,$c_txt);
144: 
145: // offsets and lengths
146: $xoff=50+1;
147: $xlen=$width-$xoff-5;
148: 
149: $yoff=1;
150: $ylen=$height-$yoff-20;
151: 
152: 
153: // v-axes
154: imageline($im,50,ty(1),50,ty($height-20),$c_axes);
155: imageline($im,$width-5,ty(1),$width-5,ty($height-20),$c_axes);
156: // y-axes
157: imageline($im,50,ty(1),$width-5,ty(1),$c_axes);
158: imageline($im,$width-5,ty($height-20),50,ty($height-20),$c_axes);
159: //ierror("hello");
160: 
161: 
162: // range data
163: 
164: // Lowest
165: 
166: if (isset($_REQUEST['rangemin'])) $dlow=$_REQUEST['rangemin'];
167: else
168: 	{
169: 	$q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
170: 	$q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ";
171: 	$q.="ORDER BY testvalue ASC LIMIT 0,1"; // lowest
172: 	$r=$NATS->DB->Query($q);
173: 	//ierror($q);
174: 	if (!$row=$NATS->DB->Fetch_Array($r)) ierror("No data for test");
175: 	$lowest=$row['testvalue'];
176: 	$dlow=$lowest;
177: 	if ($dlow>0) $dlow=0;
178: 	$NATS->DB->Free($r);
179: 	}
180: 
181: 
182: // Highest
183: 
184: if (isset($_REQUEST['rangemax'])) $dhigh=$_REQUEST['rangemax'];
185: else
186: {
187: 	$q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
188: 	$q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ";
189: 	$q.= "ORDER BY testvalue DESC LIMIT 0,1"; //highest
190: 	
191: 	$r=$NATS->DB->Query($q);
192: 	$row=$NATS->DB->Fetch_Array($r);
193: 	$highest=$row['testvalue'];
194: 	$dhigh=$highest;
195: 	$NATS->DB->Free($r);
196: 	if (isset($_REQUEST['rangemaxmin']))
197: 		{
198: 		if ($dhigh<$_REQUEST['rangemaxmin']) $dhigh=$_REQUEST['rangemaxmin'];
199: 		}
200: }
201: 
202: $drange=$dhigh-$dlow;
203: 
204: // calculate scales
205: $xscale=$xlen/$periodx;
206: if ($drange>0) $yscale=$ylen/$drange;
207: else $yscale=1; // doesn't display but no change!
208: 
209: function posx($time) // timex
210: {
211: global $xscale,$startx,$xoff;
212: $drawx=$xscale*($time-$startx);
213: $screenx=$drawx+$xoff;
214: return $screenx;
215: }
216: 
217: function posy($value) 
218: {
219: global $yscale,$dlow,$yoff,$dhigh;
220: if ($value>$dhigh) $value=$dhigh;
221: $drawy=$yscale*($value-$dlow);
222: $screeny=$drawy+$yoff;
223: return $screeny;
224: }
225: 
226: 
227: 
228: // show axes scales
229: imagestring($im,1,2,ty(10),$dlow,$c_txt);
230: imagestring($im,1,2,ty($height-18),$dhigh,$c_txt);
231: 
232: 
233: if (isset($_REQUEST['units'])) 
234: 	{
235: 	if (strpos($_REQUEST['units'],"/")===false)
236: 		imagestring($im,1,2,ty($height-28),$_REQUEST['units'],$c_txt);
237: 	
238: 
239: 	else
240: 		{
241: 		$unit_array=explode("/",$_REQUEST['units']);
242: 		$a=0;
243: 		foreach($unit_array as $unit_string)
244: 			{
245: 			imagestring($im,1,2,ty($height-28-($a*8)),$unit_string,$c_txt);
246: 			$a++;
247: 			}
248: 		}
249: 	}	
250: 
251: 
252: // get data and draw
253: $q="SELECT testvalue,alertlevel,recordx FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\" ";
254: $q.="AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ORDER BY recordx ASC";
255: //$q.="LIMIT 0,100";
256: $r=$NATS->DB->Query($q);
257: $lastx=0;
258: $lasty=0;
259: 
260: $startval=0;
261: $finishval=0;
262: 
263: while ($row=mysql_fetch_array($r))
264: 	{
265: 	$x=posx($row['recordx']);
266: 	$y=posy($row['testvalue']);
267: 	
268: 	if ($row['alertlevel']==-1) $c=$col['grey'];
269: 	else if ($row['alertlevel']==0) $c=$col['lightgreen'];
270: 	else if ($row['alertlevel']==1) $c=$col['orange'];
271: 	else if ($row['alertlevel']==2) $c=$col['red'];
272: 	else $c=$col['black'];
273: 	
274: 	// up lines
275: 	if ($draw_spike==1) imageline($im,$x,ty(0),$x,ty($y),$c);
276: 
277: 
278: 	if ($lastx!=0)
279: 		{	
280: 		
281: 		// bottom line
282: 		if ($draw_under==1)
283: 			{
284: 			if (($row['alertlevel']>0)||
285: 				 (($row['alertlevel']==0)&&($draw_under_pass==1)) )
286: 				{
287: 				imageline($im,$lastx,ty(1),$x,ty(1),$c);
288: 				imageline($im,$lastx,ty(2),$x,ty(2),$c);
289: 				}
290: 			}
291: 			
292: 		// join-the-dots
293: 		if ($draw_track==1) imageline($im,$lastx,ty($lasty),$x,ty($y),$c_track);
294: 		}	
295: 	
296: 	//imageellipse($im,$x,ty($y),1,1,$c_red);
297: 	
298: 	$lastx=$x;
299: 	$lasty=$y;
300: 	
301: 	}
302: mysql_free_result($r);
303: 
304: 	
305: 
306: // output image
307: header("Content-type: image/png");
308: imagepng($im);
309: imagedestroy($im);
310: exit(); // just in case
311: 
312: ?>
313: