mirror of
https://github.com/silverstripe/silverstripe-docsviewer
synced 2024-10-22 11:05:56 +02:00
264 lines
9.4 KiB
PHP
Executable File
264 lines
9.4 KiB
PHP
Executable File
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Search_Lucene
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* @subpackage Document
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Xlsx.php 20096 2010-01-06 02:05:09Z bkarwin $
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*/
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/** Zend_Search_Lucene_Document_OpenXml */
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require_once 'Zend/Search/Lucene/Document/OpenXml.php';
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/**
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* Xlsx document.
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*
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* @category Zend
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* @package Zend_Search_Lucene
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* @subpackage Document
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Search_Lucene_Document_Xlsx extends Zend_Search_Lucene_Document_OpenXml
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{
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/**
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* Xml Schema - SpreadsheetML
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*
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* @var string
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*/
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const SCHEMA_SPREADSHEETML = 'http://schemas.openxmlformats.org/spreadsheetml/2006/main';
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/**
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* Xml Schema - DrawingML
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*
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* @var string
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*/
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const SCHEMA_DRAWINGML = 'http://schemas.openxmlformats.org/drawingml/2006/main';
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/**
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* Xml Schema - Shared Strings
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*
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* @var string
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*/
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const SCHEMA_SHAREDSTRINGS = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings';
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/**
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* Xml Schema - Worksheet relation
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*
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* @var string
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*/
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const SCHEMA_WORKSHEETRELATION = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet';
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/**
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* Xml Schema - Slide notes relation
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*
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* @var string
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*/
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const SCHEMA_SLIDENOTESRELATION = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/notesSlide';
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/**
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* Object constructor
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*
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* @param string $fileName
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* @param boolean $storeContent
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* @throws Zend_Search_Lucene_Exception
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*/
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private function __construct($fileName, $storeContent)
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{
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if (!class_exists('ZipArchive', false)) {
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require_once 'Zend/Search/Lucene/Exception.php';
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throw new Zend_Search_Lucene_Exception('MS Office documents processing functionality requires Zip extension to be loaded');
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}
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// Document data holders
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$sharedStrings = array();
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$worksheets = array();
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$documentBody = array();
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$coreProperties = array();
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// Open OpenXML package
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$package = new ZipArchive();
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$package->open($fileName);
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// Read relations and search for officeDocument
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$relationsXml = $package->getFromName('_rels/.rels');
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if ($relationsXml === false) {
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require_once 'Zend/Search/Lucene/Exception.php';
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throw new Zend_Search_Lucene_Exception('Invalid archive or corrupted .xlsx file.');
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}
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$relations = simplexml_load_string($relationsXml);
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foreach ($relations->Relationship as $rel) {
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if ($rel["Type"] == Zend_Search_Lucene_Document_OpenXml::SCHEMA_OFFICEDOCUMENT) {
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// Found office document! Read relations for workbook...
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$workbookRelations = simplexml_load_string($package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/_rels/" . basename($rel["Target"]) . ".rels")) );
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$workbookRelations->registerXPathNamespace("rel", Zend_Search_Lucene_Document_OpenXml::SCHEMA_RELATIONSHIP);
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// Read shared strings
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$sharedStringsPath = $workbookRelations->xpath("rel:Relationship[@Type='" . Zend_Search_Lucene_Document_Xlsx::SCHEMA_SHAREDSTRINGS . "']");
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$sharedStringsPath = (string)$sharedStringsPath[0]['Target'];
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$xmlStrings = simplexml_load_string($package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/" . $sharedStringsPath)) );
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if (isset($xmlStrings) && isset($xmlStrings->si)) {
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foreach ($xmlStrings->si as $val) {
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if (isset($val->t)) {
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$sharedStrings[] = (string)$val->t;
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} elseif (isset($val->r)) {
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$sharedStrings[] = $this->_parseRichText($val);
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}
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}
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}
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// Loop relations for workbook and extract worksheets...
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foreach ($workbookRelations->Relationship as $workbookRelation) {
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if ($workbookRelation["Type"] == Zend_Search_Lucene_Document_Xlsx::SCHEMA_WORKSHEETRELATION) {
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$worksheets[ str_replace( 'rId', '', (string)$workbookRelation["Id"]) ] = simplexml_load_string(
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$package->getFromName( $this->absoluteZipPath(dirname($rel["Target"]) . "/" . dirname($workbookRelation["Target"]) . "/" . basename($workbookRelation["Target"])) )
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);
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}
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}
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break;
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}
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}
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// Sort worksheets
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ksort($worksheets);
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// Extract contents from worksheets
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foreach ($worksheets as $sheetKey => $worksheet) {
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foreach ($worksheet->sheetData->row as $row) {
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foreach ($row->c as $c) {
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// Determine data type
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$dataType = (string)$c["t"];
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switch ($dataType) {
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case "s":
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// Value is a shared string
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if ((string)$c->v != '') {
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$value = $sharedStrings[intval($c->v)];
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} else {
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$value = '';
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}
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break;
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case "b":
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// Value is boolean
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$value = (string)$c->v;
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if ($value == '0') {
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$value = false;
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} else if ($value == '1') {
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$value = true;
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} else {
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$value = (bool)$c->v;
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}
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break;
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case "inlineStr":
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// Value is rich text inline
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$value = $this->_parseRichText($c->is);
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break;
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case "e":
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// Value is an error message
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if ((string)$c->v != '') {
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$value = (string)$c->v;
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} else {
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$value = '';
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}
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break;
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default:
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// Value is a string
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$value = (string)$c->v;
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// Check for numeric values
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if (is_numeric($value) && $dataType != 's') {
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if ($value == (int)$value) $value = (int)$value;
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elseif ($value == (float)$value) $value = (float)$value;
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elseif ($value == (double)$value) $value = (double)$value;
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}
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}
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$documentBody[] = $value;
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}
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}
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}
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// Read core properties
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$coreProperties = $this->extractMetaData($package);
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// Close file
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$package->close();
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// Store filename
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$this->addField(Zend_Search_Lucene_Field::Text('filename', $fileName, 'UTF-8'));
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// Store contents
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if ($storeContent) {
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$this->addField(Zend_Search_Lucene_Field::Text('body', implode(' ', $documentBody), 'UTF-8'));
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} else {
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$this->addField(Zend_Search_Lucene_Field::UnStored('body', implode(' ', $documentBody), 'UTF-8'));
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}
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// Store meta data properties
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foreach ($coreProperties as $key => $value)
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{
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$this->addField(Zend_Search_Lucene_Field::Text($key, $value, 'UTF-8'));
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}
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// Store title (if not present in meta data)
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if (!isset($coreProperties['title']))
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{
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$this->addField(Zend_Search_Lucene_Field::Text('title', $fileName, 'UTF-8'));
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}
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}
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/**
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* Parse rich text XML
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*
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* @param SimpleXMLElement $is
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* @return string
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*/
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private function _parseRichText($is = null) {
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$value = array();
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if (isset($is->t)) {
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$value[] = (string)$is->t;
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} else {
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foreach ($is->r as $run) {
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$value[] = (string)$run->t;
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}
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}
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return implode('', $value);
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}
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/**
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* Load Xlsx document from a file
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*
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* @param string $fileName
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* @param boolean $storeContent
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* @return Zend_Search_Lucene_Document_Xlsx
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*/
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public static function loadXlsxFile($fileName, $storeContent = false)
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{
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return new Zend_Search_Lucene_Document_Xlsx($fileName, $storeContent);
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}
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}
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