Passed
Push — master ( 7063d6...9e7aeb )
by Matias
04:08
created

DownloadService::downloadFile()   B

Complexity

Conditions 7
Paths 8

Size

Total Lines 59
Code Lines 40

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 20
CRAP Score 14.0419

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 7
eloc 40
c 1
b 0
f 0
nc 8
nop 1
dl 0
loc 59
ccs 20
cts 42
cp 0.4762
crap 14.0419
rs 8.3466

How to fix   Long Method   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

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<?php
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declare(strict_types=1);
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/**
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 * @copyright Copyright (c) 2019-2023 Matias De lellis <[email protected]>
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 *
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 * @author Matias De lellis <[email protected]>
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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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use OCP\ITempManager;
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class DownloadService {
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	/** @var ITempManager */
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	private $tempManager;
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	public function __construct(ITempManager $tempManager)
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	{
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		$this->tempManager = $tempManager;
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	}
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	/**
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	 * Download a file in a temporary folder
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	 *
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	 * @param string $fileUrl url to download.
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	 * @return string temp file downloaded.
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	 *
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	 * @throws \Exception
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	 */
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	public function downloadFile(string $fileUrl): string {
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		$tempFolder = $this->tempManager->getTemporaryFolder('/facerecognition/');
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		$tempFile = $tempFolder . basename($fileUrl);
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		$fp = fopen($tempFile, 'w+');
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		if ($fp === false) {
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			throw new \Exception('Could not open the file to write: ' . $tempFile);
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		}
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		$ch = curl_init($fileUrl);
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		if ($ch === false) {
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			throw new \Exception('Curl error: unable to initialize curl');
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		}
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		curl_setopt_array($ch, [
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			CURLOPT_FILE => $fp,
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			CURLOPT_FOLLOWLOCATION => true,
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			CURLOPT_SSL_VERIFYPEER => false,
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			CURLOPT_SSL_VERIFYHOST => 0,
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			CURLOPT_USERAGENT => 'Nextcloud-Face-Recognition-Service',
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		]);
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		if (curl_exec($ch) === false) {
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			throw new \Exception('Curl error: ' . curl_error($ch));
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		}
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		$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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		if ($httpCode !== 200) {
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			$statusCodes = [
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				400 => 'Bad request',
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				401 => 'Unauthorized',
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				403 => 'Forbidden',
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				404 => 'Not Found',
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				500 => 'Internal Server Error',
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				502 => 'Bad Gateway',
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				503 => 'Service Unavailable',
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				504 => 'Gateway Timeout',
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			];
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			$message = 'Download failed';
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			if(isset($statusCodes[$httpCode])) {
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				$message .= ' - ' . $statusCodes[$httpCode] . ' (HTTP ' . $httpCode . ')';
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			} else {
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				$message .= ' - HTTP status code: ' . $httpCode;
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			}
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			$curlErrorMessage = curl_error($ch);
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			if(!empty($curlErrorMessage)) {
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				$message .= ' - curl error message: ' . $curlErrorMessage;
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			}
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			$message .= ' - URL: ' . htmlentities($fileUrl);
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			throw new \Exception($message);
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		}
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		curl_close($ch);
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		fclose($fp);
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		return $tempFile;
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	}
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	/**
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	 * Remove any temporary file from the service.
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	 *
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	 * @return void
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	 */
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	public function clean(): void {
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		$this->tempManager->clean();
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	}
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}
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