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<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Resource\TextExtraction;
use TYPO3\CMS\Core\Resource\FileInterface;
use TYPO3\CMS\Core\Utility\PathUtility;
/**
* A simple text extractor to extract text from plain text files.
*/
class PlainTextExtractor implements TextExtractorInterface
{
/**
* Checks if the given file can be read by this extractor
*
* @return bool
*/
public function canExtractText(FileInterface $file)
{
$canExtract = false;
if ($file->getMimeType() === 'text/plain') {
$canExtract = true;
}
return $canExtract;
}
/**
* The actual text extraction.
*
* @return string
*/
public function extractText(FileInterface $file)
{
$localTempFile = $file->getForLocalProcessing(false);
// extract text
$content = (string)file_get_contents($localTempFile);
// In case of remote storage, the temporary copy of the
// original file in typo3temp must be removed
// Simply compare the filenames, because the filename is so unique that
// it is nearly impossible to have a file with this name in a storage
if (PathUtility::basename($localTempFile) !== $file->getName()) {
unlink($localTempFile);
}
return $content;
}
}