You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
2.8 KiB
105 lines
2.8 KiB
<?php declare(strict_types=1); |
|
/** |
|
* @copyright Copyright (c) 2019 Robin Appelman <robin@icewind.nl> |
|
* |
|
* @license GNU AGPL version 3 or any later version |
|
* |
|
* This program is free software: you can redistribute it and/or modify |
|
* it under the terms of the GNU Affero General Public License as |
|
* published by the Free Software Foundation, either version 3 of the |
|
* License, or (at your option) any later version. |
|
* |
|
* 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 Affero General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Affero General Public License |
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
* |
|
*/ |
|
|
|
namespace OC\Preview; |
|
|
|
use OCP\Files\File; |
|
use OCP\Files\FileInfo; |
|
use OCP\IImage; |
|
use OCP\Preview\IProviderV2; |
|
|
|
abstract class ProviderV2 implements IProviderV2 { |
|
private $options; |
|
|
|
private $tmpFiles = []; |
|
|
|
/** |
|
* Constructor |
|
* |
|
* @param array $options |
|
*/ |
|
public function __construct(array $options = []) { |
|
$this->options = $options; |
|
} |
|
|
|
/** |
|
* @return string Regex with the mimetypes that are supported by this provider |
|
*/ |
|
abstract public function getMimeType(): string ; |
|
|
|
/** |
|
* Check if a preview can be generated for $path |
|
* |
|
* @param FileInfo $file |
|
* @return bool |
|
*/ |
|
public function isAvailable(FileInfo $file): bool { |
|
return true; |
|
} |
|
|
|
/** |
|
* get thumbnail for file at path $path |
|
* |
|
* @param File $file |
|
* @param int $maxX The maximum X size of the thumbnail. It can be smaller depending on the shape of the image |
|
* @param int $maxY The maximum Y size of the thumbnail. It can be smaller depending on the shape of the image |
|
* @return null|\OCP\IImage false if no preview was generated |
|
* @since 17.0.0 |
|
*/ |
|
abstract public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage; |
|
|
|
/** |
|
* Get a path to either the local file or temporary file |
|
* |
|
* @param File $file |
|
* @param int $maxSize maximum size for temporary files |
|
* @return string |
|
*/ |
|
protected function getLocalFile(File $file, int $maxSize = null): string { |
|
$useTempFile = $file->isEncrypted() || !$file->getStorage()->isLocal(); |
|
if ($useTempFile) { |
|
$absPath = \OC::$server->getTempManager()->getTemporaryFile(); |
|
|
|
$content = $file->fopen('r'); |
|
|
|
if ($maxSize) { |
|
$content = stream_get_contents($content, $maxSize); |
|
} |
|
|
|
file_put_contents($absPath, $content); |
|
$this->tmpFiles[] = $absPath; |
|
return $absPath; |
|
} else { |
|
return $file->getStorage()->getLocalFile($file->getInternalPath()); |
|
} |
|
} |
|
|
|
/** |
|
* Clean any generated temporary files |
|
*/ |
|
protected function cleanTmpFiles() { |
|
foreach ($this->tmpFiles as $tmpFile) { |
|
unlink($tmpFile); |
|
} |
|
|
|
$this->tmpFiles = []; |
|
} |
|
}
|
|
|