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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2022 Vitor Mattos <vitor@php.rio>
*
* @author Vitor Mattos <vitor@php.rio>
*
* @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 OCA\Talk\Service;
use InvalidArgumentException;
use OC\User\NoUserException;
use OCA\Talk\Config;
use OCA\Talk\Exceptions\ParticipantNotFoundException;
use OCA\Talk\Room;
use OCP\Files\Folder;
use OCP\Files\IMimeTypeDetector;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
class RecordingService {
public const DEFAULT_ALLOWED_RECORDING_FORMATS = [
'audio/ogg' => ['ogg'],
'video/ogg' => ['ogv'],
'video/x-matroska' => ['mkv'],
];
private IMimeTypeDetector $mimeTypeDetector;
private ParticipantService $participantService;
private IRootFolder $rootFolder;
private Config $config;
public function __construct(
IMimeTypeDetector $mimeTypeDetector,
ParticipantService $participantService,
IRootFolder $rootFolder,
Config $config
) {
$this->mimeTypeDetector = $mimeTypeDetector;
$this->participantService = $participantService;
$this->rootFolder = $rootFolder;
$this->config = $config;
}
public function store(Room $room, string $owner, array $file): void {
$content = $this->getContentFromFileArray($file);
$fileName = basename($file['name']);
$this->validateFileFormat($fileName, $content);
try {
$this->participantService->getParticipant($room, $owner);
} catch (ParticipantNotFoundException $e) {
throw new InvalidArgumentException('owner_participant');
}
try {
$recordingFolder = $this->getRecordingFolder($owner, $room->getToken());
$recordingFolder->newFile($fileName, $content);
} catch (NoUserException $e) {
throw new InvalidArgumentException('owner_invalid');
} catch (NotPermittedException $e) {
throw new InvalidArgumentException('owner_permission');
}
}
public function getContentFromFileArray(array $file): string {
if (
$file['error'] !== 0 ||
!is_uploaded_file($file['tmp_name'])
) {
throw new InvalidArgumentException('invalid_file');
}
$content = file_get_contents($file['tmp_name']);
unlink($file['tmp_name']);
if (!$content) {
throw new InvalidArgumentException('empty_file');
}
return $content;
}
public function validateFileFormat(string $fileName, $content): void {
$mimeType = $this->mimeTypeDetector->detectString($content);
$allowed = self::DEFAULT_ALLOWED_RECORDING_FORMATS;
if (!array_key_exists($mimeType, $allowed)) {
throw new InvalidArgumentException('file_mimetype');
}
$extension = strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
if (!$extension || !in_array($extension, $allowed[$mimeType])) {
throw new InvalidArgumentException('file_extension');
}
}
private function getRecordingFolder(string $owner, string $token): Folder {
$userFolder = $this->rootFolder->getUserFolder($owner);
$recordingRootFolderName = $this->config->getRecordingFolder($owner);
try {
/** @var \OCP\Files\Folder */
$recordingRootFolder = $userFolder->get($recordingRootFolderName);
} catch (NotFoundException $e) {
/** @var \OCP\Files\Folder */
$recordingRootFolder = $userFolder->newFolder($recordingRootFolderName);
}
try {
$recordingFolder = $recordingRootFolder->get($token);
} catch (NotFoundException $e) {
$recordingFolder = $recordingRootFolder->newFolder($token);
}
return $recordingFolder;
}
}
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