279 lines
7.4 KiB
PHP
279 lines
7.4 KiB
PHP
<?php
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//=======================================================================
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// File: JPGRAPH_ERRHANDLER.PHP
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// Description: Error handler class together with handling of localized
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// error messages. All localized error messages are stored
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// in a separate file under the "lang/" subdirectory.
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// Created: 2006-09-24
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// Ver: $Id: jpgraph_errhandler.inc.php 973 2008-03-09 15:29:44Z ljp $
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//
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// Copyright 2006 (c) Aditus Consulting. All rights reserved.
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//========================================================================
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GLOBAL $__jpg_err_locale ;
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$__jpg_err_locale = DEFAULT_ERR_LOCALE;
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class ErrMsgText {
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private $lt=NULL;
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function ErrMsgText() {
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GLOBAL $__jpg_err_locale;
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$file = 'lang/'.$__jpg_err_locale.'.inc.php';
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// If the chosen locale doesn't exist try english
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if( !file_exists(dirname(__FILE__).'/'.$file) ) {
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$__jpg_err_locale = 'en';
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}
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$file = 'lang/'.$__jpg_err_locale.'.inc.php';
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if( !file_exists(dirname(__FILE__).'/'.$file) ) {
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die('Chosen locale file ("'.$file.'") for error messages does not exist or is not readable for the PHP process. Please make sure that the file exists and that the file permissions are such that the PHP process is allowed to read this file.');
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}
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require($file);
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$this->lt = $_jpg_messages;
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}
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function Get($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
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GLOBAL $__jpg_err_locale;
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if( !isset($this->lt[$errnbr]) ) {
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return 'Internal error: The specified error message ('.$errnbr.') does not exist in the chosen locale ('.$__jpg_err_locale.')';
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}
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$ea = $this->lt[$errnbr];
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$j=0;
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if( $a1 !== null ) {
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$argv[$j++] = $a1;
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if( $a2 !== null ) {
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$argv[$j++] = $a2;
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if( $a3 !== null ) {
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$argv[$j++] = $a3;
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if( $a4 !== null ) {
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$argv[$j++] = $a4;
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if( $a5 !== null ) {
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$argv[$j++] = $a5;
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}
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}
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}
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}
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}
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$numargs = $j;
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if( $ea[1] != $numargs ) {
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// Error message argument count do not match.
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// Just return the error message without arguments.
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return $ea[0];
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}
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switch( $numargs ) {
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case 1:
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$msg = sprintf($ea[0],$argv[0]);
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break;
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case 2:
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$msg = sprintf($ea[0],$argv[0],$argv[1]);
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break;
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case 3:
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$msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2]);
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break;
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case 4:
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$msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3]);
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break;
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case 5:
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$msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3],$argv[4]);
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break;
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case 0:
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default:
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$msg = sprintf($ea[0]);
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break;
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}
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return $msg;
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}
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}
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//
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// A wrapper class that is used to access the specified error object
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// (to hide the global error parameter and avoid having a GLOBAL directive
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// in all methods.
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//
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class JpGraphError {
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private static $__jpg_err;
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public static function Install($aErrObject) {
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self::$__jpg_err = new $aErrObject;
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}
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public static function Raise($aMsg,$aHalt=true){
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self::$__jpg_err->Raise($aMsg,$aHalt);
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}
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public static function SetErrLocale($aLoc) {
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GLOBAL $__jpg_err_locale ;
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$__jpg_err_locale = $aLoc;
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}
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public static function RaiseL($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
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$t = new ErrMsgText();
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$msg = $t->Get($errnbr,$a1,$a2,$a3,$a4,$a5);
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self::$__jpg_err->Raise($msg);
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}
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}
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//
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// First of all set up a default error handler
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//
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//=============================================================
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// The default trivial text error handler.
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//=============================================================
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class JpGraphErrObject {
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protected $iTitle = "JpGraph Error";
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protected $iDest = false;
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function JpGraphErrObject() {
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// Empty. Reserved for future use
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}
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function SetTitle($aTitle) {
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$this->iTitle = $aTitle;
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}
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function SetStrokeDest($aDest) {
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$this->iDest = $aDest;
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}
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// If aHalt is true then execution can't continue. Typical used for fatal errors
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function Raise($aMsg,$aHalt=true) {
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$aMsg = $this->iTitle.' '.$aMsg;
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if ($this->iDest) {
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$f = @fopen($this->iDest,'a');
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if( $f ) {
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@fwrite($f,$aMsg);
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@fclose($f);
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}
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}
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else {
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echo $aMsg;
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}
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if( $aHalt )
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die();
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}
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}
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//==============================================================
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// An image based error handler
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//==============================================================
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class JpGraphErrObjectImg extends JpGraphErrObject {
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function Raise($aMsg,$aHalt=true) {
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$img_iconerror =
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'iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAAAaV'.
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'BMVEX//////2Xy8mLl5V/Z2VvMzFi/v1WyslKlpU+ZmUyMjEh/'.
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'f0VyckJlZT9YWDxMTDjAwMDy8sLl5bnY2K/MzKW/v5yyspKlpY'.
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'iYmH+MjHY/PzV/f2xycmJlZVlZWU9MTEXY2Ms/PzwyMjLFTjea'.
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'AAAAAXRSTlMAQObYZgAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACx'.
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'IAAAsSAdLdfvwAAAAHdElNRQfTBgISOCqusfs5AAABLUlEQVR4'.
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'2tWV3XKCMBBGWfkranCIVClKLd/7P2Q3QsgCxjDTq+6FE2cPH+'.
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'xJ0Ogn2lQbsT+Wrs+buAZAV4W5T6Bs0YXBBwpKgEuIu+JERAX6'.
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'wM2rHjmDdEITmsQEEmWADgZm6rAjhXsoMGY9B/NZBwJzBvn+e3'.
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'wHntCAJdGu9SviwIwoZVDxPB9+Rc0TSEbQr0j3SA1gwdSn6Db0'.
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'6Tm1KfV6yzWGQO7zdpvyKLKBDmRFjzeB3LYgK7r6A/noDAfjtS'.
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'IXaIzbJSv6WgUebTMV4EoRB8a2mQiQjgtF91HdKDKZ1gtFtQjk'.
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'YcWaR5OKOhkYt+ZsTFdJRfPAApOpQYJTNHvCRSJR6SJngQadfc'.
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'vd69OLMddVOPCGVnmrFD8bVYd3JXfxXPtLR/+mtv59/ALWiiMx'.
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'qL72fwAAAABJRU5ErkJggg==' ;
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if( function_exists("imagetypes") )
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$supported = imagetypes();
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else
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$supported = 0;
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if( !function_exists('imagecreatefromstring') )
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$supported = 0;
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if( ob_get_length() || headers_sent() || !($supported & IMG_PNG) ) {
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// Special case for headers already sent or that the installation doesn't support
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// the PNG format (which the error icon is encoded in).
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// Dont return an image since it can't be displayed
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die($this->iTitle.' '.$aMsg);
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}
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$aMsg = wordwrap($aMsg,55);
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$lines = substr_count($aMsg,"\n");
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// Create the error icon GD
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$erricon = Image::CreateFromString(base64_decode($img_iconerror));
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// Create an image that contains the error text.
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$w=400;
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$h=100 + 15*max(0,$lines-3);
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$img = new Image($w,$h);
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// Drop shadow
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$img->SetColor("gray");
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$img->FilledRectangle(5,5,$w-1,$h-1,10);
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$img->SetColor("gray:0.7");
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$img->FilledRectangle(5,5,$w-3,$h-3,10);
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// Window background
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$img->SetColor("lightblue");
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$img->FilledRectangle(1,1,$w-5,$h-5);
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$img->CopyCanvasH($img->img,$erricon,5,30,0,0,40,40);
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// Window border
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$img->SetColor("black");
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$img->Rectangle(1,1,$w-5,$h-5);
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$img->Rectangle(0,0,$w-4,$h-4);
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// Window top row
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$img->SetColor("darkred");
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for($y=3; $y < 18; $y += 2 )
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$img->Line(1,$y,$w-6,$y);
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// "White shadow"
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$img->SetColor("white");
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// Left window edge
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$img->Line(2,2,2,$h-5);
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$img->Line(2,2,$w-6,2);
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// "Gray button shadow"
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$img->SetColor("darkgray");
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// Gray window shadow
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$img->Line(2,$h-6,$w-5,$h-6);
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$img->Line(3,$h-7,$w-5,$h-7);
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// Window title
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$m = floor($w/2-5);
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$l = 100;
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$img->SetColor("lightgray:1.3");
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$img->FilledRectangle($m-$l,2,$m+$l,16);
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// Stroke text
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$img->SetColor("darkred");
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$img->SetFont(FF_FONT2,FS_BOLD);
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$img->StrokeText($m-50,15,$this->iTitle);
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$img->SetColor("black");
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$img->SetFont(FF_FONT1,FS_NORMAL);
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$txt = new Text($aMsg,52,25);
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$txt->Align("left","top");
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$txt->Stroke($img);
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if ($this->iDest) {
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$img->Stream($this->iDest);
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} else {
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$img->Headers();
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$img->Stream();
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}
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if( $aHalt )
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die();
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}
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}
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// Install the default error handler
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if( USE_IMAGE_ERROR_HANDLER ) {
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JpGraphError::Install("JpGraphErrObjectImg");
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}
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else {
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JpGraphError::Install("JpGraphErrObject");
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}
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?>
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