pdfConverter.php
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<?php
/**
* $Id: $
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009 KnowledgeTree Inc.
*
*
* 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 KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, 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 . '/search2/documentProcessor/documentProcessor.inc.php');
require_once(KT_DIR . '/search2/indexing/lib/XmlRpcLucene.inc.php');
/**
* @todo Check if the trigger should be called on download
*
*/
class pdfConverter extends BaseProcessor
{
public $order = 2;
protected $namespace = 'pdf.converter.processor';
private $ooHost = '127.0.0.1';
private $ooPort = 8100;
/**
* Constructor gets the connection to the java server
*
* @return pdfConverter
*/
public function pdfConverter()
{
$config =& KTConfig::getSingleton();
$javaServerUrl = $config->get('indexer/javaLuceneURL');
$this->ooHost = $config->get('openoffice/host','127.0.0.1');
$this->ooPort = $config->get('openoffice/port','8100');
$this->xmlrpc = XmlRpcLucene::get($javaServerUrl);
}
/**
* Check that open office is running
*
* @return boolean
*/
private function checkOO()
{
$available = SearchHelper::checkOpenOfficeAvailablity();
if(is_null($available)){
return true;
}
return false;
}
/**
* Gets the document path and calls the conversion function
*
* @return boolean
*/
public function processDocument()
{
$oStorage = KTStorageManagerUtil::getSingleton();
$path = $oStorage->temporaryFile($this->document);
$ext = KTMime::getFileType($this->document->getMimeTypeID());
$mimetype = KTMime::getMimeTypeName($this->document->getMimeTypeID());
if(!file_exists($path)){
global $default;
$default->log->debug('PDF Converter: Document, id: '.$this->document->iId.', does not exist at given storage path: '.$path);
return sprintf(_kt("The document, id: %s, does not exist at the given storage path: %s") , $this->document->iId,$path);
}
// check for OO
$available = $this->checkOO();
// do pdf conversion
if(!$available){
global $default;
$default->log->error("PDF Converter: Cannot connect to Open Office Server on host {$this->ooHost} : {$this->ooPort}");
return _kt('Cannot connect to Open Office Server.');
}
$res = $this->convertFile($path, $ext);
if($res !== true){
global $default;
$default->log->debug('PDF Converter: Document, id: '.$this->document->iId.', could not be converted to pdf.');
return sprintf(_kt("The document, id: %s, could not be converted to pdf format. The following error occurred: \"%s\".") , $this->document->iId,$res);
}
return true;
}
/**
* The supported mime types for the converter.
*
* @return array
*/
public function getSupportedMimeTypes()
{
// $aAcceptedMimeTypes = array('doc', 'ods', 'odt', 'ott', 'txt', 'rtf', 'sxw', 'stw',
// // 'html', 'htm',
// 'xml' , 'pdb', 'psw', 'ods', 'ots', 'sxc',
// 'stc', 'dif', 'dbf', 'xls', 'xlt', 'slk', 'csv', 'pxl',
// 'odp', 'otp', 'sxi', 'sti', 'ppt', 'pot', 'sxd', 'odg',
// 'otg', 'std', 'asc');
// work around for ms office xp and 2003 templates - the mime type is identical but the templates aren't supported
if(!empty($fileType)){
$types = array('dot', 'xlt', 'pot', 'htm');
if(in_array($fileType, $types)){
return false;
}
}
// taken from the original list of accepted types in the pdf generator action
$mime_types = array();
$mime_types[] = 'text/plain';
$mime_types[] = 'text/html';
$mime_types[] = 'text/csv';
$mime_types[] = 'text/rtf';
// Office OLE2 - 2003, XP, etc
$mime_types[] = 'application/msword';
$mime_types[] = 'application/vnd.ms-powerpoint';
$mime_types[] = 'application/vnd.ms-excel';
// Star Office
$mime_types[] = 'application/vnd.sun.xml.writer';
//$mime_types[] = 'application/vnd.sun.xml.writer.template';
$mime_types[] = 'application/vnd.sun.xml.calc';
//$mime_types[] = 'application/vnd.sun.xml.calc.template';
$mime_types[] = 'application/vnd.sun.xml.draw';
//$mime_types[] = 'application/vnd.sun.xml.draw.template';
$mime_types[] = 'application/vnd.sun.xml.impress';
//$mime_types[] = 'application/vnd.sun.xml.impress.template';
// Open Office
$mime_types[] = 'application/vnd.oasis.opendocument.text';
//$mime_types[] = 'application/vnd.oasis.opendocument.text-template';
$mime_types[] = 'application/vnd.oasis.opendocument.graphics';
//$mime_types[] = 'application/vnd.oasis.opendocument.graphics-template';
$mime_types[] = 'application/vnd.oasis.opendocument.presentation';
//$mime_types[] = 'application/vnd.oasis.opendocument.presentation-template';
$mime_types[] = 'application/vnd.oasis.opendocument.spreadsheet';
//$mime_types[] = 'application/vnd.oasis.opendocument.spreadsheet-template';
/* OO3 */
// Office 2007
$mime_types[] = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document';
//$mime_types[] = 'application/vnd.openxmlformats-officedocument.wordprocessingml.template';
//$mime_types[] = 'application/vnd.openxmlformats-officedocument.presentationml.template';
//$mime_types[] = 'application/vnd.openxmlformats-officedocument.presentationml.slideshow';
$mime_types[] = 'application/vnd.openxmlformats-officedocument.presentationml.presentation';
$mime_types[] = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet';
//$mime_types[] = 'application/vnd.openxmlformats-officedocument.spreadsheetml.template';
/* */
$mime_types[] = 'image/tiff';
return $mime_types;
}
/**
* Converts the given file to a pdf
*
* @param string $filename The full path to the file
* @param string $ext The extension of the file
* @return boolean
*/
function convertFile($filename, $ext)
{
global $default;
$tempDir = $default->tmpDirectory;
// Create temporary copy of document
$sourceFile = tempnam($tempDir, 'pdfconverter') . '.' .$ext;
$res = @copy($filename, $sourceFile);
// Create a temporary file to store the converted document
$targetFile = tempnam($tempDir, 'pdfconverter') . '.pdf';
if($ext == "tiff"||$ext == "tif") {
$this->convertTiff($sourceFile, $targetFile);
} else {
// Get contents and send to converter
$result = $this->xmlrpc->convertDocument($sourceFile, $targetFile, $this->ooHost, $this->ooPort);
}
if(is_string($result)){
$default->log->error('PDF Converter Plugin: Conversion to PDF Failed');
@unlink($sourceFile);
@unlink($targetFile);
return $result;
}
$pdfDir = $default->pdfDirectory;
// Ensure the PDF directory exists
if(!file_exists($pdfDir)){
mkdir($pdfDir, 0755);
touch($pdfDir.'/index.html');
file_put_contents($pdfDir.'/index.html', 'You do not have permission to access this directory.');
}
$pdfFile = $pdfDir .'/'. $this->document->iId.'.pdf';
// if a previous version of the pdf exists - delete it
if(file_exists($pdfFile)){
@unlink($pdfFile);
}
// Copy the generated pdf into the pdf directory
$res = @copy($targetFile, $pdfFile);
@unlink($sourceFile);
@unlink($targetFile);
return true;
}
function convertTiff($sourceFile, $targetFile) {
global $default;
$pathConvert = (!empty($default->convertPath)) ? $default->convertPath : 'convert'; // Retrieve convert location
if (stristr(PHP_OS,'WIN')) { // windows path may contain spaces
$cmd = "\"{$pathConvert}\" \"{$sourceFile}\" \"$targetFile\"";
}
else {
$cmd = "{$pathConvert} {$sourceFile} $targetFile";
}
$result = KTUtil::pexec($cmd);
}
}
?>