Subversion Repositories Applications.papyrus

<?php
//=======================================================================
// File:        JPGRAPH_ERRHANDLER.PHP
// Description: Error handler class together with handling of localized
//              error messages. All localized error messages are stored
//              in a separate file under the "lang/" subdirectory.
// Created:     2006-09-24
// Ver:         $Id: jpgraph_errhandler.inc.php 770 2006-09-24 20:19:11Z ljp $
//
// Copyright 2006 (c) Aditus Consulting. All rights reserved.
//========================================================================


GLOBAL $__jpg_err_locale ;
$__jpg_err_locale = DEFAULT_ERR_LOCALE;

class ErrMsgText {
    private $lt=NULL;
    function ErrMsgText() {
        GLOBAL $__jpg_err_locale;
        $file = 'lang/'.$__jpg_err_locale.'.inc.php';

        // If the chosen locale doesn't exist try english
        if( !file_exists(dirname(__FILE__).'/'.$file) ) {
            $__jpg_err_locale = 'en';
        }

        $file = 'lang/'.$__jpg_err_locale.'.inc.php';
        if( !file_exists(dirname(__FILE__).'/'.$file) ) {
            die('Internal error: Chosen locale file for error messages does not exist.');
        }
        require_once($file);
        $this->lt = $_jpg_messages;
    }

    function Get($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
        GLOBAL $__jpg_err_locale;
        if( !isset($this->lt[$errnbr]) ) {
            return 'Internal error: The specified error message ('.$errnbr.') does not exist in the chosen locale ('.$__jpg_err_locale.')';
        }
        $ea = $this->lt[$errnbr];
        $j=0;
        if( $a1 !== null ) {
            $argv[$j++] = $a1;
            if( $a2 !== null ) {
                $argv[$j++] = $a2;
                if( $a3 !== null ) {
                    $argv[$j++] = $a3;
                    if( $a4 !== null ) {
                        $argv[$j++] = $a4;
                        if( $a5 !== null ) {
                            $argv[$j++] = $a5;
                        }
                    }
                }
            }
        }
        $numargs = $j; 
        if( $ea[1] != $numargs ) {
            // Error message argument count do not match.
            // Just return the error message without arguments.
            return $ea[0];
        }
        switch( $numargs ) {
            case 1:
                $msg = sprintf($ea[0],$argv[0]);
                break;
            case 2:
                $msg = sprintf($ea[0],$argv[0],$argv[1]);
                break;
            case 3:
                $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2]);
                break;
            case 4:
                $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3]);
                break;
            case 5:
                $msg = sprintf($ea[0],$argv[0],$argv[1],$argv[2],$argv[3],$argv[4]);
                break;
            case 0:
            default:
                $msg = sprintf($ea[0]);
                break;
        }
        return $msg;
    }
}

//
// A wrapper class that is used to access the specified error object
// (to hide the global error parameter and avoid having a GLOBAL directive
// in all methods.
//
class JpGraphError {
    private static $__jpg_err;
    public static function Install($aErrObject) {
        self::$__jpg_err = new $aErrObject;
    }
    public static function Raise($aMsg,$aHalt=true){
        self::$__jpg_err->Raise($aMsg,$aHalt);
    }
    public static function SetErrLocale($aLoc) {
        GLOBAL $__jpg_err_locale ;
        $__jpg_err_locale = $aLoc;
    }
    public static function RaiseL($errnbr,$a1=null,$a2=null,$a3=null,$a4=null,$a5=null) {
        $t = new ErrMsgText();
        $msg = $t->Get($errnbr,$a1,$a2,$a3,$a4,$a5);
        self::$__jpg_err->Raise($msg);
    }
}

//
// First of all set up a default error handler
//

//=============================================================
// The default trivial text error handler.
//=============================================================
class JpGraphErrObject {

    protected $iTitle = "JpGraph Error";
    protected $iDest = false;


    function JpGraphErrObject() {
        // Empty. Reserved for future use
    }

    function SetTitle($aTitle) {
        $this->iTitle = $aTitle;
    }

    function SetStrokeDest($aDest) { 
        $this->iDest = $aDest; 
    }

    // If aHalt is true then execution can't continue. Typical used for fatal errors
    function Raise($aMsg,$aHalt=true) {
        $aMsg = $this->iTitle.' '.$aMsg;
        if ($this->iDest) {
            $f = @fopen($this->iDest,'a');
            if( $f ) {
                @fwrite($f,$aMsg);
                @fclose($f);
            }
        }
        else {
            echo $aMsg;
        }
        if( $aHalt )
            die();
    }
}

//==============================================================
// An image based error handler
//==============================================================
class JpGraphErrObjectImg extends JpGraphErrObject {

    function Raise($aMsg,$aHalt=true) {
        $img_iconerror = 
            'iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAAAaV'.
            'BMVEX//////2Xy8mLl5V/Z2VvMzFi/v1WyslKlpU+ZmUyMjEh/'.
            'f0VyckJlZT9YWDxMTDjAwMDy8sLl5bnY2K/MzKW/v5yyspKlpY'.
            'iYmH+MjHY/PzV/f2xycmJlZVlZWU9MTEXY2Ms/PzwyMjLFTjea'.
            'AAAAAXRSTlMAQObYZgAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACx'.
            'IAAAsSAdLdfvwAAAAHdElNRQfTBgISOCqusfs5AAABLUlEQVR4'.
            '2tWV3XKCMBBGWfkranCIVClKLd/7P2Q3QsgCxjDTq+6FE2cPH+'.
            'xJ0Ogn2lQbsT+Wrs+buAZAV4W5T6Bs0YXBBwpKgEuIu+JERAX6'.
            'wM2rHjmDdEITmsQEEmWADgZm6rAjhXsoMGY9B/NZBwJzBvn+e3'.
            'wHntCAJdGu9SviwIwoZVDxPB9+Rc0TSEbQr0j3SA1gwdSn6Db0'.
            '6Tm1KfV6yzWGQO7zdpvyKLKBDmRFjzeB3LYgK7r6A/noDAfjtS'.
            'IXaIzbJSv6WgUebTMV4EoRB8a2mQiQjgtF91HdKDKZ1gtFtQjk'.
            'YcWaR5OKOhkYt+ZsTFdJRfPAApOpQYJTNHvCRSJR6SJngQadfc'.
            'vd69OLMddVOPCGVnmrFD8bVYd3JXfxXPtLR/+mtv59/ALWiiMx'.
            'qL72fwAAAABJRU5ErkJggg==' ;

        if( function_exists("imagetypes") )
            $supported = imagetypes();
        else
            $supported = 0;

        if( !function_exists('imagecreatefromstring') )
            $supported = 0;

        if( ob_get_length() || headers_sent() || !($supported & IMG_PNG) ) {
            // Special case for headers already sent or that the installation doesn't support
            // the PNG format (which the error icon is encoded in). 
            // Dont return an image since it can't be displayed
            die($this->iTitle.' '.$aMsg);               
        }

        $aMsg = wordwrap($aMsg,55);
        $lines = substr_count($aMsg,"\n");

        // Create the error icon GD
        $erricon = Image::CreateFromString(base64_decode($img_iconerror));   

        // Create an image that contains the error text.
        $w=400;         
        $h=100 + 15*max(0,$lines-3);

        $img = new Image($w,$h);


        // Drop shadow
        $img->SetColor("gray");
        $img->FilledRectangle(5,5,$w-1,$h-1,10);
        $img->SetColor("gray:0.7");
        $img->FilledRectangle(5,5,$w-3,$h-3,10);
        
        // Window background
        $img->SetColor("lightblue");
        $img->FilledRectangle(1,1,$w-5,$h-5);
        $img->CopyCanvasH($img->img,$erricon,5,30,0,0,40,40);

        // Window border
        $img->SetColor("black");
        $img->Rectangle(1,1,$w-5,$h-5);
        $img->Rectangle(0,0,$w-4,$h-4);
        
        // Window top row
        $img->SetColor("darkred");
        for($y=3; $y < 18; $y += 2 ) 
            $img->Line(1,$y,$w-6,$y);

        // "White shadow"
        $img->SetColor("white");

        // Left window edge
        $img->Line(2,2,2,$h-5);
        $img->Line(2,2,$w-6,2);

        // "Gray button shadow"
        $img->SetColor("darkgray");

        // Gray window shadow
        $img->Line(2,$h-6,$w-5,$h-6);
        $img->Line(3,$h-7,$w-5,$h-7);

        // Window title
        $m = floor($w/2-5);
        $l = 100;
        $img->SetColor("lightgray:1.3");
        $img->FilledRectangle($m-$l,2,$m+$l,16);

        // Stroke text
        $img->SetColor("darkred");
        $img->SetFont(FF_FONT2,FS_BOLD);
        $img->StrokeText($m-50,15,$this->iTitle);
        $img->SetColor("black");
        $img->SetFont(FF_FONT1,FS_NORMAL);
        $txt = new Text($aMsg,52,25);
        $txt->Align("left","top");
        $txt->Stroke($img);
        if ($this->iDest) {
           $img->Stream($this->iDest);
        } else {
            $img->Headers();
            $img->Stream();
        }
        if( $aHalt )
            die();
    }
}


// Install the default error handler
if( USE_IMAGE_ERROR_HANDLER ) {
    JpGraphError::Install("JpGraphErrObjectImg");
}
else {
    JpGraphError::Install("JpGraphErrObject");
}


?>