File indexing completed on 2025-01-19 05:21:25

 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Search_Lucene
  * @subpackage Document
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /** Zend_Xml_Security */
 // require_once 'Zend/Xml/Security.php';
 
 /** Zend_Search_Lucene_Document_OpenXml */
 // require_once 'Zend/Search/Lucene/Document/OpenXml.php';
 
 /**
  * Pptx document.
  *
  * @category   Zend
  * @package    Zend_Search_Lucene
  * @subpackage Document
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Search_Lucene_Document_Pptx extends Zend_Search_Lucene_Document_OpenXml
 {
     /**
      * Xml Schema - PresentationML
      *
      * @var string
      */
     const SCHEMA_PRESENTATIONML = 'http://schemas.openxmlformats.org/presentationml/2006/main';
 
     /**
      * Xml Schema - DrawingML
      *
      * @var string
      */
     const SCHEMA_DRAWINGML = 'http://schemas.openxmlformats.org/drawingml/2006/main';
 
     /**
      * Xml Schema - Slide relation
      *
      * @var string
      */
     const SCHEMA_SLIDERELATION = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/slide';
 
     /**
      * Xml Schema - Slide notes relation
      *
      * @var string
      */
     const SCHEMA_SLIDENOTESRELATION = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/notesSlide';
 
     /**
      * Object constructor
      *
      * @param string  $fileName
      * @param boolean $storeContent
      * @throws Zend_Search_Lucene_Exception
      */
     private function __construct($fileName, $storeContent)
     {
         if (!class_exists('ZipArchive', false)) {
             // require_once 'Zend/Search/Lucene/Exception.php';
             throw new Zend_Search_Lucene_Exception('MS Office documents processing functionality requires Zip extension to be loaded');
         }
 
         // Document data holders
         $slides = array();
         $slideNotes = array();
         $documentBody = array();
         $coreProperties = array();
 
         // Open OpenXML package
         $package = new ZipArchive();
         $package->open($fileName);
 
         // Read relations and search for officeDocument
         $relationsXml = $package->getFromName('_rels/.rels');
         if ($relationsXml === false) {
             // require_once 'Zend/Search/Lucene/Exception.php';
             throw new Zend_Search_Lucene_Exception('Invalid archive or corrupted .pptx file.');
         }
         $relations = Zend_Xml_Security::scan($relationsXml);
         foreach ($relations->Relationship as $rel) {
             if ($rel["Type"] == Zend_Search_Lucene_Document_OpenXml::SCHEMA_OFFICEDOCUMENT) {
                 // Found office document! Search for slides...
                 $slideRelations = Zend_Xml_Security::scan($package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/_rels/" . basename($rel["Target"]) . ".rels")) );
                 foreach ($slideRelations->Relationship as $slideRel) {
                     if ($slideRel["Type"] == Zend_Search_Lucene_Document_Pptx::SCHEMA_SLIDERELATION) {
                         // Found slide!
                         $slides[ str_replace( 'rId', '', (string)$slideRel["Id"] ) ] = Zend_Xml_Security::scan(
                             $package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/" . dirname($slideRel["Target"]) . "/" . basename($slideRel["Target"])) )
                         );
 
                         // Search for slide notes
                         $slideNotesRelations = Zend_Xml_Security::scan($package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/" . dirname($slideRel["Target"]) . "/_rels/" . basename($slideRel["Target"]) . ".rels")) );
                         foreach ($slideNotesRelations->Relationship as $slideNoteRel) {
                             if ($slideNoteRel["Type"] == Zend_Search_Lucene_Document_Pptx::SCHEMA_SLIDENOTESRELATION) {
                                 // Found slide notes!
                                 $slideNotes[ str_replace( 'rId', '', (string)$slideRel["Id"] ) ] = Zend_Xml_Security::scan(
                                     $package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/" . dirname($slideRel["Target"]) . "/" . dirname($slideNoteRel["Target"]) . "/" . basename($slideNoteRel["Target"])) )
                                 );
 
                                 break;
                             }
                         }
                     }
                 }
 
                 break;
             }
         }
 
         // Sort slides
         ksort($slides);
         ksort($slideNotes);
 
         // Extract contents from slides
         foreach ($slides as $slideKey => $slide) {
             // Register namespaces
             $slide->registerXPathNamespace("p", Zend_Search_Lucene_Document_Pptx::SCHEMA_PRESENTATIONML);
             $slide->registerXPathNamespace("a", Zend_Search_Lucene_Document_Pptx::SCHEMA_DRAWINGML);
 
             // Fetch all text
             $textElements = $slide->xpath('//a:t');
             foreach ($textElements as $textElement) {
                 $documentBody[] = (string)$textElement;
             }
 
             // Extract contents from slide notes
             if (isset($slideNotes[$slideKey])) {
                 // Fetch slide note
                 $slideNote = $slideNotes[$slideKey];
 
                 // Register namespaces
                 $slideNote->registerXPathNamespace("p", Zend_Search_Lucene_Document_Pptx::SCHEMA_PRESENTATIONML);
                 $slideNote->registerXPathNamespace("a", Zend_Search_Lucene_Document_Pptx::SCHEMA_DRAWINGML);
 
                 // Fetch all text
                 $textElements = $slideNote->xpath('//a:t');
                 foreach ($textElements as $textElement) {
                     $documentBody[] = (string)$textElement;
                 }
             }
         }
 
         // Read core properties
         $coreProperties = $this->extractMetaData($package);
 
         // Close file
         $package->close();
 
         // Store filename
         $this->addField(Zend_Search_Lucene_Field::Text('filename', $fileName, 'UTF-8'));
 
             // Store contents
         if ($storeContent) {
             $this->addField(Zend_Search_Lucene_Field::Text('body', implode(' ', $documentBody), 'UTF-8'));
         } else {
             $this->addField(Zend_Search_Lucene_Field::UnStored('body', implode(' ', $documentBody), 'UTF-8'));
         }
 
         // Store meta data properties
         foreach ($coreProperties as $key => $value)
         {
             $this->addField(Zend_Search_Lucene_Field::Text($key, $value, 'UTF-8'));
         }
 
         // Store title (if not present in meta data)
         if (!isset($coreProperties['title']))
         {
             $this->addField(Zend_Search_Lucene_Field::Text('title', $fileName, 'UTF-8'));
         }
     }
 
     /**
      * Load Pptx document from a file
      *
      * @param string  $fileName
      * @param boolean $storeContent
      * @return Zend_Search_Lucene_Document_Pptx
      */
     public static function loadPptxFile($fileName, $storeContent = false)
     {
         return new Zend_Search_Lucene_Document_Pptx($fileName, $storeContent);
     }
 }