80 lines
2.4 KiB
PHP
80 lines
2.4 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2019-2024 Matias De lellis <mati86dl@gmail.com>
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*
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* @author Matias De lellis <mati86dl@gmail.com>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero 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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*/
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namespace OCA\FaceRecognition\Service;
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class CompressionService {
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/**
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* Decompress according to file extension
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*
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* @param string $inputFile
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* @param string $outputFile
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*
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* @throws \Exception
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*
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* @return void
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*/
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public function decompress(string $inputFile, string $outputFile): void {
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if (!file_exists ($inputFile) || !is_readable ($inputFile))
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throw new \Exception('The file ' . $inputFile . ' not exists or is not readable');
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if ((!file_exists($outputFile) && !is_writeable(dirname($outputFile))) ||
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(file_exists($outputFile) && !is_writable($outputFile)))
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throw new \Exception('The file ' . $outputFile . ' exists or is not writable');
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$extension = pathinfo($inputFile, PATHINFO_EXTENSION);
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switch ($extension) {
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case 'bz2':
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$this->bunzip2($inputFile, $outputFile);
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break;
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default:
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throw new \Exception('Unsupported file format: ' . $extension);
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break;
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}
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}
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private function bunzip2(string $inputFile, string $outputFile): void {
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$in_file = bzopen ($inputFile, "r");
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$out_file = fopen ($outputFile, "w");
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if ($out_file === false)
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throw new \Exception('Could not open the file to write: ' . $outputFile);
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while ($buffer = bzread ($in_file, 4096)) {
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if($buffer === false)
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throw new \Exception('Read problem: ' . bzerrstr($in_file));
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if(bzerrno($in_file) !== 0)
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throw new \Exception('Compression problem: '. bzerrstr($in_file));
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fwrite ($out_file, $buffer, 4096);
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}
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bzclose ($in_file);
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fclose ($out_file);
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}
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}
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