ExcelIndexer.php
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<?php
/**
* $Id$
*
* KnowledgeTree Open Source Edition
* Document Management Made Simple
* Copyright (C) 2004 - 2007 The Jam Warehouse Software (Pty) Limited
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*
* You can contact The Jam Warehouse Software (Pty) Limited, Unit 1, Tramber Place,
* Blake Street, Observatory, 7925 South Africa. or email info@knowledgetree.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
* Contributor( s): ______________________________________
*
*/
require_once(KT_DIR . '/plugins/ktstandard/contents/BaseIndexer.php');
class KTExcelIndexerTrigger extends KTBaseIndexerTrigger {
var $mimetypes = array(
'application/vnd.ms-excel' => true,
);
var $command = 'xls2csv'; // could be any application.
var $commandconfig = 'indexer/xls2csv'; // could be any application.
var $args = array("-d", "UTF-8", "-q", "0", "-c", " ");
var $use_pipes = true;
// see BaseIndexer for how the extraction works.
//
function extract_contents($sFilename, $sTempFilename) {
if (!OS_WINDOWS) {
putenv('LANG=en_US.UTF-8');
$res = parent::extract_contents($sFilename, $sTempFilename);
if(strstr($this->aCommandOutput[0], "encrypted")) {
return "";
}
if (!empty($res)) {
return $res;
}
}
return $this->_fallbackExcelReader($sFilename, $sTempFilename);
}
function _fallbackExcelReader($sFilename, $sTempFilename) {
require_once(KT_DIR . '/thirdparty/excelreader/Excel/reader.php');
$reader = new Spreadsheet_Excel_Reader();
$reader->setOutputEncoding('UTF-8');
$reader->read($sFilename);
$t = fopen($sTempFilename, "w");
foreach ($reader->sheets as $aSheet) {
for ($i = 1; $i <= $aSheet['numRows'] && $i <= 1000; $i++) {
for ($j = 1; $j <= $aSheet['numCols'] && $j <= 1000; $j++) {
fwrite($t, $aSheet['cells'][$i][$j] . " ");
}
fwrite($t, "\n");
}
fwrite($t, "\n\n\n");
}
fclose($t);
return file_get_contents($sTempFilename);
}
}
?>