source: trunk/client/modules/Elezioni/grafici/jpgraph_errhandler.inc.php@ 2

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1<?php
2//=======================================================================
3// File: JPGRAPH_ERRHANDLER.PHP
4// Description: Error handler class together with handling of localized
5// error messages. All localized error messages are stored
6// in a separate file under the "lang/" subdirectory.
7// Created: 2006-09-24
8// Ver: $Id: jpgraph_errhandler.inc.php 973 2008-03-09 15:29:44Z ljp $
9//
10// Copyright 2006 (c) Aditus Consulting. All rights reserved.
11//========================================================================
12
13
14GLOBAL $__jpg_err_locale ;
15$__jpg_err_locale = DEFAULT_ERR_LOCALE;
16
17class ErrMsgText {
18 private $lt=NULL;
19 function ErrMsgText() {
20 GLOBAL $__jpg_err_locale;
21 $file = 'lang/'.$__jpg_err_locale.'.inc.php';
22
23 // If the chosen locale doesn't exist try english
24 if( !file_exists(dirname(__FILE__).'/'.$file) ) {
25 $__jpg_err_locale = 'en';
26 }
27
28 $file = 'lang/'.$__jpg_err_locale.'.inc.php';
29 if( !file_exists(dirname(__FILE__).'/'.$file) ) {
30 die('Chosen locale file ("'.$file.'") for error messages does not exist or is not readable for the PHP process. Please make sure that the file exists and that the file permissions are such that the PHP process is allowed to read this file.');
31 }
32 require($file);
33 $this->lt = $_jpg_messages;
34 }
35
36 function Get($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
37 GLOBAL $__jpg_err_locale;
38 if( !isset($this->lt[$errnbr]) ) {
39 return 'Internal error: The specified error message ('.$errnbr.') does not exist in the chosen locale ('.$__jpg_err_locale.')';
40 }
41 $ea = $this->lt[$errnbr];
42 $j=0;
43 if( $a1 !== null ) {
44 $argv[$j++] = $a1;
45 if( $a2 !== null ) {
46 $argv[$j++] = $a2;
47 if( $a3 !== null ) {
48 $argv[$j++] = $a3;
49 if( $a4 !== null ) {
50 $argv[$j++] = $a4;
51 if( $a5 !== null ) {
52 $argv[$j++] = $a5;
53 }
54 }
55 }
56 }
57 }
58 $numargs = $j;
59 if( $ea[1] != $numargs ) {
60 // Error message argument count do not match.
61 // Just return the error message without arguments.
62 return $ea[0];
63 }
64 switch( $numargs ) {
65 case 1:
66 $msg = sprintf($ea[0],$argv[0]);
67 break;
68 case 2:
69 $msg = sprintf($ea[0],$argv[0],$argv[1]);
70 break;
71 case 3:
72 $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2]);
73 break;
74 case 4:
75 $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3]);
76 break;
77 case 5:
78 $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3],$argv[4]);
79 break;
80 case 0:
81 default:
82 $msg = sprintf($ea[0]);
83 break;
84 }
85 return $msg;
86 }
87}
88
89//
90// A wrapper class that is used to access the specified error object
91// (to hide the global error parameter and avoid having a GLOBAL directive
92// in all methods.
93//
94class JpGraphError {
95 private static $__jpg_err;
96 public static function Install($aErrObject) {
97 self::$__jpg_err = new $aErrObject;
98 }
99 public static function Raise($aMsg,$aHalt=true){
100 self::$__jpg_err->Raise($aMsg,$aHalt);
101 }
102 public static function SetErrLocale($aLoc) {
103 GLOBAL $__jpg_err_locale ;
104 $__jpg_err_locale = $aLoc;
105 }
106 public static function RaiseL($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
107 $t = new ErrMsgText();
108 $msg = $t->Get($errnbr,$a1,$a2,$a3,$a4,$a5);
109 self::$__jpg_err->Raise($msg);
110 }
111}
112
113//
114// First of all set up a default error handler
115//
116
117//=============================================================
118// The default trivial text error handler.
119//=============================================================
120class JpGraphErrObject {
121
122 protected $iTitle = "JpGraph Error";
123 protected $iDest = false;
124
125
126 function JpGraphErrObject() {
127 // Empty. Reserved for future use
128 }
129
130 function SetTitle($aTitle) {
131 $this->iTitle = $aTitle;
132 }
133
134 function SetStrokeDest($aDest) {
135 $this->iDest = $aDest;
136 }
137
138 // If aHalt is true then execution can't continue. Typical used for fatal errors
139 function Raise($aMsg,$aHalt=true) {
140 $aMsg = $this->iTitle.' '.$aMsg;
141 if ($this->iDest) {
142 $f = @fopen($this->iDest,'a');
143 if( $f ) {
144 @fwrite($f,$aMsg);
145 @fclose($f);
146 }
147 }
148 else {
149 echo $aMsg;
150 }
151 if( $aHalt )
152 die();
153 }
154}
155
156//==============================================================
157// An image based error handler
158//==============================================================
159class JpGraphErrObjectImg extends JpGraphErrObject {
160
161 function Raise($aMsg,$aHalt=true) {
162 $img_iconerror =
163 'iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAAAaV'.
164 'BMVEX//////2Xy8mLl5V/Z2VvMzFi/v1WyslKlpU+ZmUyMjEh/'.
165 'f0VyckJlZT9YWDxMTDjAwMDy8sLl5bnY2K/MzKW/v5yyspKlpY'.
166 'iYmH+MjHY/PzV/f2xycmJlZVlZWU9MTEXY2Ms/PzwyMjLFTjea'.
167 'AAAAAXRSTlMAQObYZgAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACx'.
168 'IAAAsSAdLdfvwAAAAHdElNRQfTBgISOCqusfs5AAABLUlEQVR4'.
169 '2tWV3XKCMBBGWfkranCIVClKLd/7P2Q3QsgCxjDTq+6FE2cPH+'.
170 'xJ0Ogn2lQbsT+Wrs+buAZAV4W5T6Bs0YXBBwpKgEuIu+JERAX6'.
171 'wM2rHjmDdEITmsQEEmWADgZm6rAjhXsoMGY9B/NZBwJzBvn+e3'.
172 'wHntCAJdGu9SviwIwoZVDxPB9+Rc0TSEbQr0j3SA1gwdSn6Db0'.
173 '6Tm1KfV6yzWGQO7zdpvyKLKBDmRFjzeB3LYgK7r6A/noDAfjtS'.
174 'IXaIzbJSv6WgUebTMV4EoRB8a2mQiQjgtF91HdKDKZ1gtFtQjk'.
175 'YcWaR5OKOhkYt+ZsTFdJRfPAApOpQYJTNHvCRSJR6SJngQadfc'.
176 'vd69OLMddVOPCGVnmrFD8bVYd3JXfxXPtLR/+mtv59/ALWiiMx'.
177 'qL72fwAAAABJRU5ErkJggg==' ;
178
179 if( function_exists("imagetypes") )
180 $supported = imagetypes();
181 else
182 $supported = 0;
183
184 if( !function_exists('imagecreatefromstring') )
185 $supported = 0;
186
187 if( ob_get_length() || headers_sent() || !($supported & IMG_PNG) ) {
188 // Special case for headers already sent or that the installation doesn't support
189 // the PNG format (which the error icon is encoded in).
190 // Dont return an image since it can't be displayed
191 die($this->iTitle.' '.$aMsg);
192 }
193
194 $aMsg = wordwrap($aMsg,55);
195 $lines = substr_count($aMsg,"\n");
196
197 // Create the error icon GD
198 $erricon = Image::CreateFromString(base64_decode($img_iconerror));
199
200 // Create an image that contains the error text.
201 $w=400;
202 $h=100 + 15*max(0,$lines-3);
203
204 $img = new Image($w,$h);
205
206
207 // Drop shadow
208 $img->SetColor("gray");
209 $img->FilledRectangle(5,5,$w-1,$h-1,10);
210 $img->SetColor("gray:0.7");
211 $img->FilledRectangle(5,5,$w-3,$h-3,10);
212
213 // Window background
214 $img->SetColor("lightblue");
215 $img->FilledRectangle(1,1,$w-5,$h-5);
216 $img->CopyCanvasH($img->img,$erricon,5,30,0,0,40,40);
217
218 // Window border
219 $img->SetColor("black");
220 $img->Rectangle(1,1,$w-5,$h-5);
221 $img->Rectangle(0,0,$w-4,$h-4);
222
223 // Window top row
224 $img->SetColor("darkred");
225 for($y=3; $y < 18; $y += 2 )
226 $img->Line(1,$y,$w-6,$y);
227
228 // "White shadow"
229 $img->SetColor("white");
230
231 // Left window edge
232 $img->Line(2,2,2,$h-5);
233 $img->Line(2,2,$w-6,2);
234
235 // "Gray button shadow"
236 $img->SetColor("darkgray");
237
238 // Gray window shadow
239 $img->Line(2,$h-6,$w-5,$h-6);
240 $img->Line(3,$h-7,$w-5,$h-7);
241
242 // Window title
243 $m = floor($w/2-5);
244 $l = 100;
245 $img->SetColor("lightgray:1.3");
246 $img->FilledRectangle($m-$l,2,$m+$l,16);
247
248 // Stroke text
249 $img->SetColor("darkred");
250 $img->SetFont(FF_FONT2,FS_BOLD);
251 $img->StrokeText($m-50,15,$this->iTitle);
252 $img->SetColor("black");
253 $img->SetFont(FF_FONT1,FS_NORMAL);
254 $txt = new Text($aMsg,52,25);
255 $txt->Align("left","top");
256 $txt->Stroke($img);
257 if ($this->iDest) {
258 $img->Stream($this->iDest);
259 } else {
260 $img->Headers();
261 $img->Stream();
262 }
263 if( $aHalt )
264 die();
265 }
266}
267
268
269// Install the default error handler
270if( USE_IMAGE_ERROR_HANDLER ) {
271 JpGraphError::Install("JpGraphErrObjectImg");
272}
273else {
274 JpGraphError::Install("JpGraphErrObject");
275}
276
277
278?>
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