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103 lines
3.1 KiB
PHP
103 lines
3.1 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Files_Trashbin\Controller;
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use OCA\Files_Trashbin\Trash\ITrashManager;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\Http\Attribute\NoAdminRequired;
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use OCP\AppFramework\Http\Attribute\NoCSRFRequired;
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use OCP\AppFramework\Http\Attribute\OpenAPI;
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use OCP\AppFramework\Http\DataResponse;
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use OCP\AppFramework\Http\FileDisplayResponse;
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use OCP\AppFramework\Utility\ITimeFactory;
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use OCP\Files\Folder;
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use OCP\Files\IMimeTypeDetector;
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use OCP\Files\IRootFolder;
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use OCP\Files\NotFoundException;
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use OCP\IPreview;
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use OCP\IRequest;
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use OCP\IUserSession;
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#[OpenAPI(scope: OpenAPI::SCOPE_DEFAULT)]
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class PreviewController extends Controller {
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public function __construct(
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string $appName,
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IRequest $request,
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private IRootFolder $rootFolder,
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private ITrashManager $trashManager,
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private IUserSession $userSession,
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private IMimeTypeDetector $mimeTypeDetector,
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private IPreview $previewManager,
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private ITimeFactory $time,
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) {
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parent::__construct($appName, $request);
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}
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/**
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* Get the preview for a file
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*
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* @param int $fileId ID of the file
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* @param int $x Width of the preview
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* @param int $y Height of the preview
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* @param bool $a Whether to not crop the preview
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*
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* @return Http\FileDisplayResponse<Http::STATUS_OK, array{Content-Type: string}>|DataResponse<Http::STATUS_BAD_REQUEST|Http::STATUS_NOT_FOUND, list<empty>, array{}>
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*
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* 200: Preview returned
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* 400: Getting preview is not possible
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* 404: Preview not found
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*/
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#[NoAdminRequired]
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#[NoCSRFRequired]
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public function getPreview(
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int $fileId = -1,
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int $x = 32,
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int $y = 32,
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bool $a = false,
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) {
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if ($fileId === -1 || $x === 0 || $y === 0) {
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return new DataResponse([], Http::STATUS_BAD_REQUEST);
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}
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try {
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$file = $this->trashManager->getTrashNodeById($this->userSession->getUser(), $fileId);
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if ($file === null) {
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return new DataResponse([], Http::STATUS_NOT_FOUND);
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}
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if ($file instanceof Folder) {
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return new DataResponse([], Http::STATUS_BAD_REQUEST);
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}
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$pathParts = pathinfo($file->getName());
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$extension = $pathParts['extension'] ?? '';
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$fileName = $pathParts['filename'];
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/*
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* Files in the root of the trashbin are timetamped.
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* So we have to strip that in order to properly detect the mimetype of the file.
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*/
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if (preg_match('/d\d+/', $extension)) {
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$mimeType = $this->mimeTypeDetector->detectPath($fileName);
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} else {
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$mimeType = $this->mimeTypeDetector->detectPath($file->getName());
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}
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$f = $this->previewManager->getPreview($file, $x, $y, !$a, IPreview::MODE_FILL, $mimeType);
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$response = new FileDisplayResponse($f, Http::STATUS_OK, ['Content-Type' => $f->getMimeType()]);
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// Cache previews for 24H
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$response->cacheFor(3600 * 24);
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return $response;
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} catch (NotFoundException $e) {
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return new DataResponse([], Http::STATUS_NOT_FOUND);
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} catch (\InvalidArgumentException $e) {
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return new DataResponse([], Http::STATUS_BAD_REQUEST);
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}
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}
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}
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