<?php
/*
*******************************************************************************
    
    FiReportXML -- Rapid XML Report Generator
    Copyright (C) 2004  Daniel McFeeters

    included with
    
    FiForms -- A collection of PHP classes designed 
    to facilitate rapid development of web-database software

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

    You should have received a copy of the GNU General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


    The original author of this library can be contacted at the following 
    address:

    Daniel McFeeters
    182 Baker Rd.
    Faubush, KY 42544-6526
    email:databases [at] fiforms [dot] org
    http://www.fiforms.org/


Project Started January 20, 2004
*******************************************************************************
FiReports_xsltWrapper.inc.php

*******************************************************************************
*/


if(!isset($FIFORMS_CONFIG))
{
        die('No Configuration found. Did you perhaps call an include file' .
                        ' directly instead of calling it as part of the FiForms' .
                        ' application?'); 
}

/* ?><code><?php */


    class xsltWrapper
    // Wrapper for XSLT Functions
    {
        public $params;  // array of parameters
        public $errorMsg; // Error Messages

        function xsltWrapper()
        {
            $this->params = array();
        }

    function transformFileByFile($xmlFile,$xsltFile)
    {
       $xml = file_get_contents($xmlFile);
       return $this->transformStringByFile($xml,$xsltFile);
    }
    
    function transformStringByFile($xmlString,$xsltFile)
        {
          if($GLOBALS['FIFORMS_CONFIG']['PHP_XSLT'] == TRUE)
          {
                $sheet = new DOMDocument() or die("Error Creating DOMDocument");
        $sheet->validateOnParse = false;
                $sheet->resolveExternals = false;
                $sheet->load($xsltFile) or die("Error Loading XSLT stylesheet.");
                $xsl = new XSLTProcessor() or die("Error creating XSLT Processor.");
                $xsl->importStyleSheet($sheet);// or die("Error loading sheet");
                $doc = new DOMDocument();
        $doc->validateOnParse = false;
                $doc->resolveExternals = false;
        $er = $doc->loadXML($xmlString);
        // FIXME Need to load parameters wtih setParameter('',name,value);
        foreach($this->params as $key => $param)
        {
            if(trim($key) !== "")
            {
                $xsl->setParameter('',$key,$param);
            }
        }
        if(!$er)
        {
          $this->errorMsg .= "Error Loading XML";
          return false;
        }
                return $xsl->transformToXML($doc);
          }
          else
          {
            $descriptorspec = array(
               0 => array("pipe", "r"),  
               1 => array("pipe", "w"),  
               2 => array("pipe", "w") 
            );
            chdir($GLOBALS['FIFORMS_CONFIG']['SCRIPT_PATH']);
            $pipes = array();

            $stringParams = "";
            foreach($this->params as $key => $param)
            {
            if(trim($key) !== "" && trim($param) !== "")
            {
                    $stringParams .= " --stringparam ".
                    escapeshellarg($key)." ".escapeshellarg($param);
            }
            }
        $cmd = $GLOBALS['FIFORMS_CONFIG']['XSLTPROC'].$stringParams." --nowrite --nomkdir --nonet $xsltFile -";
            $process = proc_open($cmd, $descriptorspec, $pipes);
            $result = "";
            $error = "";
            if (is_resource($process)) 
            {
                fwrite($pipes[0], $xmlString);
                fclose($pipes[0]);

                while (!feof($pipes[1])) 
                {
                    $result .= fgets($pipes[1], 1024);
                }
                fclose($pipes[1]);

                while (!feof($pipes[2])) 
                {
                    $error .= fgets($pipes[2], 1024);
                }
                fclose($pipes[2]);
                proc_close($process);
            }  // if is_resource
            if(!$result)
            {
                $this->errorMsg .= "Error executing ".$GLOBALS['FIFORMS_CONFIG']['XSLTPROC'].". Please insure that xsltproc is properly installed and that FiReports is configured properly in FiForms_global.inc.php.\n\nThe following command produced an error:\n\n$cmd\n\n";
                $this->errorMsg .= $error;
            return false;
            }

            return($result);
          }
        } // function transformStringByFile
    } // class xsltWrapper
/* ?></code><?php */

?>