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<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: OpenXml.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/** Zend_Search_Lucene_Document */
require_once 'Zend/Search/Lucene/Document.php';
/**
* OpenXML document.
*
* @category Zend
* @package Zend_Search_Lucene
* @subpackage Document
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
abstract class Zend_Search_Lucene_Document_OpenXml extends Zend_Search_Lucene_Document
{
/**
* Xml Schema - Relationships
*
* @var string
*/
const SCHEMA_RELATIONSHIP = 'http://schemas.openxmlformats.org/package/2006/relationships';
/**
* Xml Schema - Office document
*
* @var string
*/
const SCHEMA_OFFICEDOCUMENT = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument';
/**
* Xml Schema - Core properties
*
* @var string
*/
const SCHEMA_COREPROPERTIES = 'http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties';
/**
* Xml Schema - Dublin Core
*
* @var string
*/
const SCHEMA_DUBLINCORE = 'http://purl.org/dc/elements/1.1/';
/**
* Xml Schema - Dublin Core Terms
*
* @var string
*/
const SCHEMA_DUBLINCORETERMS = 'http://purl.org/dc/terms/';
/**
* Extract metadata from document
*
* @param ZipArchive $package ZipArchive OpenXML package
* @return array Key-value pairs containing document meta data
*/
protected function extractMetaData(ZipArchive $package)
{
// Data holders
$coreProperties = array();
// Read relations and search for core properties
$relations = simplexml_load_string($package->getFromName("_rels/.rels"));
foreach ($relations->Relationship as $rel) {
if ($rel["Type"] == Zend_Search_Lucene_Document_OpenXml::SCHEMA_COREPROPERTIES) {
// Found core properties! Read in contents...
$contents = simplexml_load_string(
$package->getFromName(dirname($rel["Target"]) . "/" . basename($rel["Target"]))
);
foreach ($contents->children(Zend_Search_Lucene_Document_OpenXml::SCHEMA_DUBLINCORE) as $child) {
$coreProperties[$child->getName()] = (string)$child;
}
foreach ($contents->children(Zend_Search_Lucene_Document_OpenXml::SCHEMA_COREPROPERTIES) as $child) {
$coreProperties[$child->getName()] = (string)$child;
}
foreach ($contents->children(Zend_Search_Lucene_Document_OpenXml::SCHEMA_DUBLINCORETERMS) as $child) {
$coreProperties[$child->getName()] = (string)$child;
}
}
}
return $coreProperties;
}
/**
* Determine absolute zip path
*
* @param string $path
* @return string
*/
protected function absoluteZipPath($path) {
$path = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $path);
$parts = array_filter(explode(DIRECTORY_SEPARATOR, $path), 'strlen');
$absolutes = array();
foreach ($parts as $part) {
if ('.' == $part) continue;
if ('..' == $part) {
array_pop($absolutes);
} else {
$absolutes[] = $part;
}
}
return implode('/', $absolutes);
}
}
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