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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Collaboration\Reference\File;
use OC\User\NoUserException;
use OCP\Collaboration\Reference\ADiscoverableReferenceProvider;
use OCP\Collaboration\Reference\IReference;
use OCP\Collaboration\Reference\Reference;
use OCP\Files\IMimeTypeDetector;
use OCP\Files\InvalidPathException;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\IL10N;
use OCP\IPreview;
use OCP\IURLGenerator;
use OCP\IUserSession;
use OCP\L10N\IFactory;
class FileReferenceProvider extends ADiscoverableReferenceProvider {
private ?string $userId;
private IL10N $l10n;
public function __construct(
private IURLGenerator $urlGenerator,
private IRootFolder $rootFolder,
IUserSession $userSession,
private IMimeTypeDetector $mimeTypeDetector,
private IPreview $previewManager,
IFactory $l10n,
) {
$this->userId = $userSession->getUser()?->getUID();
$this->l10n = $l10n->get('files');
}
public function matchReference(string $referenceText): bool {
return $this->getFilesAppLinkId($referenceText) !== null;
}
private function getFilesAppLinkId(string $referenceText): ?int {
$start = $this->urlGenerator->getAbsoluteURL('/apps/files/');
$startIndex = $this->urlGenerator->getAbsoluteURL('/index.php/apps/files/');
$fileId = null;
if (mb_strpos($referenceText, $start) === 0) {
$parts = parse_url($referenceText);
parse_str($parts['query'] ?? '', $query);
$fileId = isset($query['fileid']) ? (int)$query['fileid'] : $fileId;
$fileId = isset($query['openfile']) ? (int)$query['openfile'] : $fileId;
}
if (mb_strpos($referenceText, $startIndex) === 0) {
$parts = parse_url($referenceText);
parse_str($parts['query'] ?? '', $query);
$fileId = isset($query['fileid']) ? (int)$query['fileid'] : $fileId;
$fileId = isset($query['openfile']) ? (int)$query['openfile'] : $fileId;
}
if (mb_strpos($referenceText, $this->urlGenerator->getAbsoluteURL('/index.php/f/')) === 0) {
$fileId = str_replace($this->urlGenerator->getAbsoluteURL('/index.php/f/'), '', $referenceText);
}
if (mb_strpos($referenceText, $this->urlGenerator->getAbsoluteURL('/f/')) === 0) {
$fileId = str_replace($this->urlGenerator->getAbsoluteURL('/f/'), '', $referenceText);
}
return $fileId !== null ? (int)$fileId : null;
}
public function resolveReference(string $referenceText): ?IReference {
if ($this->matchReference($referenceText)) {
$reference = new Reference($referenceText);
try {
$this->fetchReference($reference);
} catch (NotFoundException $e) {
$reference->setRichObject('file', null);
$reference->setAccessible(false);
}
return $reference;
}
return null;
}
/**
* @throws NotFoundException
*/
private function fetchReference(Reference $reference): void {
if ($this->userId === null) {
throw new NotFoundException();
}
$fileId = $this->getFilesAppLinkId($reference->getId());
if ($fileId === null) {
throw new NotFoundException();
}
try {
$userFolder = $this->rootFolder->getUserFolder($this->userId);
$file = $userFolder->getFirstNodeById($fileId);
if (!$file) {
throw new NotFoundException();
}
$reference->setTitle($file->getName());
$reference->setDescription($file->getMimetype());
$reference->setUrl($this->urlGenerator->getAbsoluteURL('/index.php/f/' . $fileId));
if ($this->previewManager->isMimeSupported($file->getMimeType())) {
$reference->setImageUrl($this->urlGenerator->linkToRouteAbsolute('core.Preview.getPreviewByFileId', ['x' => 1600, 'y' => 630, 'fileId' => $fileId]));
} else {
$fileTypeIconUrl = $this->mimeTypeDetector->mimeTypeIcon($file->getMimeType());
$reference->setImageUrl($fileTypeIconUrl);
}
$reference->setRichObject('file', [
'id' => $file->getId(),
'name' => $file->getName(),
'size' => $file->getSize(),
'path' => $userFolder->getRelativePath($file->getPath()),
'link' => $reference->getUrl(),
'mimetype' => $file->getMimetype(),
'mtime' => $file->getMTime(),
'preview-available' => $this->previewManager->isAvailable($file)
]);
} catch (InvalidPathException|NotFoundException|NotPermittedException|NoUserException $e) {
throw new NotFoundException();
}
}
public function getCachePrefix(string $referenceId): string {
return (string)$this->getFilesAppLinkId($referenceId);
}
public function getCacheKey(string $referenceId): ?string {
return $this->userId ?? '';
}
public function getId(): string {
return 'files';
}
public function getTitle(): string {
return $this->l10n->t('Files');
}
public function getOrder(): int {
return 0;
}
public function getIconUrl(): string {
return $this->urlGenerator->imagePath('files', 'folder.svg');
}
}
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