david
28b02db2ea
git-svn-id: https://192.168.0.254/svn/Proyectos.Incam_SGD/tags/3.7.0.2_original@1 eb19766c-00d9-a042-a3a0-45cb8ec72764
107 lines
3.1 KiB
PHP
107 lines
3.1 KiB
PHP
<?php
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/**
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* $Id:$
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*
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* KnowledgeTree Community Edition
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* Document Management Made Simple
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* Copyright (C) 2008, 2009 KnowledgeTree Inc.
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*
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License version 3 as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
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* California 94120-7775, or email info@knowledgetree.com.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "Powered by
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* KnowledgeTree" logo and retain the original copyright notice. If the display of the
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* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
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* must display the words "Powered by KnowledgeTree" and retain the original
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* copyright notice.
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* Contributor( s): ______________________________________
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*
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*/
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class PDFExtractor extends ApplicationExtractor
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{
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public function __construct()
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{
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$config = KTConfig::getSingleton();
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$params = $config->get('extractorParameters/pdftotext', '-nopgbrk -enc UTF-8 "{source}" "{target}"');
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parent::__construct('externalBinary','pdftotext','pdftotext',_kt('PDF Text Extractor'),$params);
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}
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public function getSupportedMimeTypes()
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{
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return array();
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return array('application/pdf');
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}
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protected function filter($text)
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{
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return $text;
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}
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protected function exec($cmd)
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{
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global $default;
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$res = parent::exec($cmd);
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if (false === $res && ((strpos($this->output, 'Copying of text from this document is not allowed') !== false) ||
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(strpos($this->output, 'Incorrect password') !== false)))
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{
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$this->output = '';
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file_put_contents($this->targetfile, _kt('Security properties on the PDF document prevent text from being extracted.'));
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$default->log->info('Security properties on the PDF document prevent text from being extracted.');
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return true;
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}
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if (false === $res && (strpos($this->output, 'PDF file is damaged') !== false))
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{
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$this->output = '';
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$default->log->info('PDF file is damaged');
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return true;
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}
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if (false === $res && (strpos($this->output, '(continuing anyway)') !== false))
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{
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$this->output = '';
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return true;
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}
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if (false === $res && (strpos($this->output, 'font') !== false))
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{
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$this->output = '';
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return true;
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}
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if (filesize($this->targetfile) > 0)
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{
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$this->output = '';
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return true;
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}
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return $res;
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}
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}
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?>
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