| [2] | 1 | <?php
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| 2 | //=======================================================================
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| [284] | 3 | // File: JPGRAPH_ERRHANDLER.PHP
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| 4 | // Description: Error handler class together with handling of localized
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| 5 | // error messages. All localized error messages are stored
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| 6 | // in a separate file under the "lang/" subdirectory.
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| 7 | // Created: 2006-09-24
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| 8 | // Ver: $Id: jpgraph_errhandler.inc.php 1920 2009-12-08 10:02:26Z ljp $
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| [2] | 9 | //
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| 10 | // Copyright 2006 (c) Aditus Consulting. All rights reserved.
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| 11 | //========================================================================
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| 12 |
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| [284] | 13 | if( !defined('DEFAULT_ERR_LOCALE') ) {
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| 14 | define('DEFAULT_ERR_LOCALE','en');
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| 15 | }
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| [2] | 16 |
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| [284] | 17 | if( !defined('USE_IMAGE_ERROR_HANDLER') ) {
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| 18 | define('USE_IMAGE_ERROR_HANDLER',true);
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| 19 | }
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| 20 |
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| [2] | 21 | GLOBAL $__jpg_err_locale ;
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| 22 | $__jpg_err_locale = DEFAULT_ERR_LOCALE;
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| 23 |
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| 24 | class ErrMsgText {
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| 25 | private $lt=NULL;
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| [284] | 26 | function __construct() {
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| 27 | GLOBAL $__jpg_err_locale;
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| 28 | $file = 'lang/'.$__jpg_err_locale.'.inc.php';
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| [2] | 29 |
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| [284] | 30 | // If the chosen locale doesn't exist try english
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| 31 | if( !file_exists(dirname(__FILE__).'/'.$file) ) {
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| 32 | $__jpg_err_locale = 'en';
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| 33 | }
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| [2] | 34 |
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| [284] | 35 | $file = 'lang/'.$__jpg_err_locale.'.inc.php';
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| 36 | if( !file_exists(dirname(__FILE__).'/'.$file) ) {
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| 37 | die('Chosen locale file ("'.$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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| 38 | }
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| 39 | require($file);
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| 40 | $this->lt = $_jpg_messages;
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| [2] | 41 | }
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| 42 |
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| 43 | function Get($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
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| [284] | 44 | GLOBAL $__jpg_err_locale;
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| 45 | if( !isset($this->lt[$errnbr]) ) {
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| 46 | return 'Internal error: The specified error message ('.$errnbr.') does not exist in the chosen locale ('.$__jpg_err_locale.')';
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| 47 | }
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| 48 | $ea = $this->lt[$errnbr];
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| 49 | $j=0;
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| 50 | if( $a1 !== null ) {
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| 51 | $argv[$j++] = $a1;
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| 52 | if( $a2 !== null ) {
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| 53 | $argv[$j++] = $a2;
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| 54 | if( $a3 !== null ) {
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| 55 | $argv[$j++] = $a3;
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| 56 | if( $a4 !== null ) {
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| 57 | $argv[$j++] = $a4;
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| 58 | if( $a5 !== null ) {
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| 59 | $argv[$j++] = $a5;
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| 60 | }
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| 61 | }
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| 62 | }
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| 63 | }
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| 64 | }
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| 65 | $numargs = $j;
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| 66 | if( $ea[1] != $numargs ) {
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| 67 | // Error message argument count do not match.
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| 68 | // Just return the error message without arguments.
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| 69 | return $ea[0];
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| 70 | }
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| 71 | switch( $numargs ) {
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| 72 | case 1:
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| 73 | $msg = sprintf($ea[0],$argv[0]);
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| 74 | break;
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| 75 | case 2:
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| 76 | $msg = sprintf($ea[0],$argv[0],$argv[1]);
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| 77 | break;
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| 78 | case 3:
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| 79 | $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2]);
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| 80 | break;
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| 81 | case 4:
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| 82 | $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3]);
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| 83 | break;
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| 84 | case 5:
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| 85 | $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3],$argv[4]);
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| 86 | break;
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| 87 | case 0:
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| 88 | default:
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| 89 | $msg = sprintf($ea[0]);
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| 90 | break;
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| 91 | }
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| 92 | return $msg;
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| [2] | 93 | }
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| 94 | }
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| [284] | 95 |
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| [2] | 96 | //
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| 97 | // A wrapper class that is used to access the specified error object
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| 98 | // (to hide the global error parameter and avoid having a GLOBAL directive
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| 99 | // in all methods.
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| 100 | //
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| 101 | class JpGraphError {
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| [284] | 102 | private static $__iImgFlg = true;
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| 103 | private static $__iLogFile = '';
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| 104 | private static $__iTitle = 'JpGraph Error: ';
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| [2] | 105 | public static function Raise($aMsg,$aHalt=true){
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| [284] | 106 | throw new JpGraphException($aMsg);
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| [2] | 107 | }
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| 108 | public static function SetErrLocale($aLoc) {
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| [284] | 109 | GLOBAL $__jpg_err_locale ;
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| 110 | $__jpg_err_locale = $aLoc;
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| [2] | 111 | }
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| 112 | public static function RaiseL($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
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| [284] | 113 | throw new JpGraphExceptionL($errnbr,$a1,$a2,$a3,$a4,$a5);
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| [2] | 114 | }
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| [284] | 115 | public static function SetImageFlag($aFlg=true) {
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| 116 | self::$__iImgFlg = $aFlg;
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| 117 | }
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| 118 | public static function GetImageFlag() {
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| 119 | return self::$__iImgFlg;
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| 120 | }
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| 121 | public static function SetLogFile($aFile) {
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| 122 | self::$__iLogFile = $aFile;
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| 123 | }
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| 124 | public static function GetLogFile() {
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| 125 | return self::$__iLogFile;
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| 126 | }
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| 127 | public static function SetTitle($aTitle) {
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| 128 | self::$__iTitle = $aTitle;
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| 129 | }
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| 130 | public static function GetTitle() {
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| 131 | return self::$__iTitle;
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| 132 | }
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| [2] | 133 | }
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| 134 |
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| [284] | 135 | class JpGraphException extends Exception {
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| 136 | // Redefine the exception so message isn't optional
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| 137 | public function __construct($message, $code = 0) {
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| 138 | // make sure everything is assigned properly
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| 139 | parent::__construct($message, $code);
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| 140 | }
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| 141 | // custom string representation of object
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| 142 | public function _toString() {
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| 143 | return __CLASS__ . ": [{$this->code}]: {$this->message} at " . basename($this->getFile()) . ":" . $this->getLine() . "\n" . $this->getTraceAsString() . "\n";
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| 144 | }
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| 145 | // custom representation of error as an image
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| 146 | public function Stroke() {
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| 147 | if( JpGraphError::GetImageFlag() ) {
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| 148 | $errobj = new JpGraphErrObjectImg();
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| 149 | $errobj->SetTitle(JpGraphError::GetTitle());
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| 150 | }
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| 151 | else {
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| 152 | $errobj = new JpGraphErrObject();
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| 153 | $errobj->SetTitle(JpGraphError::GetTitle());
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| 154 | $errobj->SetStrokeDest(JpGraphError::GetLogFile());
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| 155 | }
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| 156 | $errobj->Raise($this->getMessage());
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| 157 | }
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| 158 | static public function defaultHandler(Exception $exception) {
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| 159 | global $__jpg_OldHandler;
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| 160 | if( $exception instanceof JpGraphException ) {
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| 161 | $exception->Stroke();
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| 162 | }
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| 163 | else {
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| 164 | // Restore old handler
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| 165 | if( $__jpg_OldHandler !== NULL ) {
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| 166 | set_exception_handler($__jpg_OldHandler);
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| 167 | }
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| 168 | throw $exception;
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| 169 | }
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| 170 | }
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| 171 | }
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| 172 |
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| 173 | class JpGraphExceptionL extends JpGraphException {
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| 174 | // Redefine the exception so message isn't optional
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| 175 | public function __construct($errcode,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
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| 176 | // make sure everything is assigned properly
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| 177 | $errtxt = new ErrMsgText();
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| 178 | JpGraphError::SetTitle('JpGraph Error: '.$errcode);
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| 179 | parent::__construct($errtxt->Get($errcode,$a1,$a2,$a3,$a4,$a5), 0);
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| 180 | }
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| 181 | }
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| 182 |
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| 183 | // Setup the default handler
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| 184 | global $__jpg_OldHandler;
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| 185 | $__jpg_OldHandler = set_exception_handler(array('JpGraphException','defaultHandler'));
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| 186 |
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| [2] | 187 | //
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| 188 | // First of all set up a default error handler
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| 189 | //
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| 190 |
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| 191 | //=============================================================
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| 192 | // The default trivial text error handler.
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| 193 | //=============================================================
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| 194 | class JpGraphErrObject {
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| 195 |
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| [284] | 196 | protected $iTitle = "JpGraph error: ";
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| [2] | 197 | protected $iDest = false;
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| 198 |
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| 199 |
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| [284] | 200 | function __construct() {
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| 201 | // Empty. Reserved for future use
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| [2] | 202 | }
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| 203 |
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| 204 | function SetTitle($aTitle) {
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| [284] | 205 | $this->iTitle = $aTitle;
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| [2] | 206 | }
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| 207 |
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| [284] | 208 | function SetStrokeDest($aDest) {
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| 209 | $this->iDest = $aDest;
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| [2] | 210 | }
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| 211 |
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| 212 | // If aHalt is true then execution can't continue. Typical used for fatal errors
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| [284] | 213 | function Raise($aMsg,$aHalt=false) {
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| 214 | if( $this->iDest != '' ) {
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| 215 | if( $this->iDest == 'syslog' ) {
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| 216 | error_log($this->iTitle.$aMsg);
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| 217 | }
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| 218 | else {
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| 219 | $str = '['.date('r').'] '.$this->iTitle.$aMsg."\n";
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| 220 | $f = @fopen($this->iDest,'a');
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| 221 | if( $f ) {
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| 222 | @fwrite($f,$str);
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| 223 | @fclose($f);
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| 224 | }
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| 225 | }
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| 226 | }
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| 227 | else {
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| 228 | $aMsg = $this->iTitle.$aMsg;
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| 229 | // Check SAPI and if we are called from the command line
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| 230 | // send the error to STDERR instead
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| 231 | if( PHP_SAPI == 'cli' ) {
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| 232 | fwrite(STDERR,$aMsg);
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| 233 | }
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| 234 | else {
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| 235 | echo $aMsg;
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| 236 | }
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| 237 | }
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| 238 | if( $aHalt )
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| 239 | exit(1);
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| [2] | 240 | }
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| 241 | }
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| 242 |
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| 243 | //==============================================================
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| 244 | // An image based error handler
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| 245 | //==============================================================
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| 246 | class JpGraphErrObjectImg extends JpGraphErrObject {
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| [284] | 247 |
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| 248 | function __construct() {
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| 249 | parent::__construct();
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| 250 | // Empty. Reserved for future use
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| 251 | }
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| [2] | 252 |
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| 253 | function Raise($aMsg,$aHalt=true) {
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| [284] | 254 | $img_iconerror =
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| 255 | 'iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAAAaV'.
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| 256 | 'BMVEX//////2Xy8mLl5V/Z2VvMzFi/v1WyslKlpU+ZmUyMjEh/'.
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| 257 | 'f0VyckJlZT9YWDxMTDjAwMDy8sLl5bnY2K/MzKW/v5yyspKlpY'.
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| 258 | 'iYmH+MjHY/PzV/f2xycmJlZVlZWU9MTEXY2Ms/PzwyMjLFTjea'.
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| 259 | 'AAAAAXRSTlMAQObYZgAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACx'.
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| 260 | 'IAAAsSAdLdfvwAAAAHdElNRQfTBgISOCqusfs5AAABLUlEQVR4'.
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| 261 | '2tWV3XKCMBBGWfkranCIVClKLd/7P2Q3QsgCxjDTq+6FE2cPH+'.
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| 262 | 'xJ0Ogn2lQbsT+Wrs+buAZAV4W5T6Bs0YXBBwpKgEuIu+JERAX6'.
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| 263 | 'wM2rHjmDdEITmsQEEmWADgZm6rAjhXsoMGY9B/NZBwJzBvn+e3'.
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| 264 | 'wHntCAJdGu9SviwIwoZVDxPB9+Rc0TSEbQr0j3SA1gwdSn6Db0'.
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| 265 | '6Tm1KfV6yzWGQO7zdpvyKLKBDmRFjzeB3LYgK7r6A/noDAfjtS'.
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| 266 | 'IXaIzbJSv6WgUebTMV4EoRB8a2mQiQjgtF91HdKDKZ1gtFtQjk'.
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| 267 | 'YcWaR5OKOhkYt+ZsTFdJRfPAApOpQYJTNHvCRSJR6SJngQadfc'.
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| 268 | 'vd69OLMddVOPCGVnmrFD8bVYd3JXfxXPtLR/+mtv59/ALWiiMx'.
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| 269 | 'qL72fwAAAABJRU5ErkJggg==' ;
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| [2] | 270 |
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| [284] | 271 |
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| 272 | if( function_exists("imagetypes") ) {
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| 273 | $supported = imagetypes();
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| 274 | } else {
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| 275 | $supported = 0;
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| 276 | }
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| [2] | 277 |
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| [284] | 278 | if( !function_exists('imagecreatefromstring') ) {
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| 279 | $supported = 0;
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| 280 | }
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| 281 |
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| 282 | if( ob_get_length() || headers_sent() || !($supported & IMG_PNG) ) {
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| 283 | // Special case for headers already sent or that the installation doesn't support
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| 284 | // the PNG format (which the error icon is encoded in).
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| 285 | // Dont return an image since it can't be displayed
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| 286 | die($this->iTitle.' '.$aMsg);
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| 287 | }
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| [2] | 288 |
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| [284] | 289 | $aMsg = wordwrap($aMsg,55);
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| 290 | $lines = substr_count($aMsg,"\n");
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| [2] | 291 |
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| [284] | 292 | // Create the error icon GD
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| 293 | $erricon = Image::CreateFromString(base64_decode($img_iconerror));
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| [2] | 294 |
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| [284] | 295 | // Create an image that contains the error text.
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| 296 | $w=400;
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| 297 | $h=100 + 15*max(0,$lines-3);
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| [2] | 298 |
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| [284] | 299 | $img = new Image($w,$h);
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| [2] | 300 |
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| 301 |
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| [284] | 302 | // Drop shadow
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| 303 | $img->SetColor("gray");
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| 304 | $img->FilledRectangle(5,5,$w-1,$h-1,10);
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| 305 | $img->SetColor("gray:0.7");
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| 306 | $img->FilledRectangle(5,5,$w-3,$h-3,10);
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| [2] | 307 |
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| [284] | 308 | // Window background
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| 309 | $img->SetColor("lightblue");
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| 310 | $img->FilledRectangle(1,1,$w-5,$h-5);
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| 311 | $img->CopyCanvasH($img->img,$erricon,5,30,0,0,40,40);
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| [2] | 312 |
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| [284] | 313 | // Window border
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| 314 | $img->SetColor("black");
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| 315 | $img->Rectangle(1,1,$w-5,$h-5);
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| 316 | $img->Rectangle(0,0,$w-4,$h-4);
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| [2] | 317 |
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| [284] | 318 | // Window top row
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| 319 | $img->SetColor("darkred");
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| 320 | for($y=3; $y < 18; $y += 2 )
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| 321 | $img->Line(1,$y,$w-6,$y);
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| [2] | 322 |
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| [284] | 323 | // "White shadow"
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| 324 | $img->SetColor("white");
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| [2] | 325 |
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| [284] | 326 | // Left window edge
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| 327 | $img->Line(2,2,2,$h-5);
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| 328 | $img->Line(2,2,$w-6,2);
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| [2] | 329 |
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| [284] | 330 | // "Gray button shadow"
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| 331 | $img->SetColor("darkgray");
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| [2] | 332 |
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| [284] | 333 | // Gray window shadow
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| 334 | $img->Line(2,$h-6,$w-5,$h-6);
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| 335 | $img->Line(3,$h-7,$w-5,$h-7);
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| [2] | 336 |
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| [284] | 337 | // Window title
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| 338 | $m = floor($w/2-5);
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| 339 | $l = 110;
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| 340 | $img->SetColor("lightgray:1.3");
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| 341 | $img->FilledRectangle($m-$l,2,$m+$l,16);
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| 342 |
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| 343 | // Stroke text
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| 344 | $img->SetColor("darkred");
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| 345 | $img->SetFont(FF_FONT2,FS_BOLD);
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| 346 | $img->StrokeText($m-90,15,$this->iTitle);
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| 347 | $img->SetColor("black");
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| 348 | $img->SetFont(FF_FONT1,FS_NORMAL);
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| 349 | $txt = new Text($aMsg,52,25);
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| 350 | $txt->SetFont(FF_FONT1);
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| 351 | $txt->Align("left","top");
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| 352 | $txt->Stroke($img);
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| 353 | if ($this->iDest) {
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| 354 | $img->Stream($this->iDest);
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| 355 | } else {
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| 356 | $img->Headers();
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| 357 | $img->Stream();
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| 358 | }
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| 359 | if( $aHalt )
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| 360 | die();
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| [2] | 361 | }
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| 362 | }
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| 363 |
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| 364 |
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| [284] | 365 |
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| 366 | if( ! USE_IMAGE_ERROR_HANDLER ) {
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| 367 | JpGraphError::SetImageFlag(false);
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| [267] | 368 | }
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| [2] | 369 | ?>
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