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110 lines
3.5 KiB
110 lines
3.5 KiB
<?php
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/**
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* @copyright Copyright (c) 2022 Julius Härtl <jus@bitgrid.net>
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*
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* @author Julius Härtl <jus@bitgrid.net>
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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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namespace OC\Collaboration\Reference;
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use OCP\Collaboration\Reference\IReference;
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use OCP\Collaboration\Reference\IReferenceProvider;
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use OCP\Files\IRootFolder;
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use OCP\Files\Node;
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use OCP\Files\NotFoundException;
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use OCP\IURLGenerator;
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use OCP\IUserSession;
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class FileReferenceProvider implements IReferenceProvider {
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private IURLGenerator $urlGenerator;
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private IRootFolder $rootFolder;
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private ?string $userId;
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public function __construct(IURLGenerator $urlGenerator, IRootFolder $rootFolder, IUserSession $userSession) {
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$this->urlGenerator = $urlGenerator;
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$this->rootFolder = $rootFolder;
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$this->userId = $userSession->getUser() ? $userSession->getUser()->getUID() : null;
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}
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public function matchReference(string $referenceText): bool {
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return str_starts_with($referenceText, $this->urlGenerator->getAbsoluteURL('/index.php/f/'))
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|| str_starts_with($referenceText, $this->urlGenerator->getAbsoluteURL('/f/'));
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}
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public function resolveReference(string $referenceText): ?IReference {
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if ($this->matchReference($referenceText)) {
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$reference = new Reference($referenceText);
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try {
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$this->fetchReference($reference);
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} catch (NotFoundException $e) {
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$reference->setAccessible(false);
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}
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return $reference;
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}
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return null;
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}
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/**
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* @throws \OCP\Files\NotPermittedException
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* @throws \OCP\Files\InvalidPathException
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* @throws NotFoundException
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* @throws \OC\User\NoUserException
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*/
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private function fetchReference(Reference $reference) {
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if ($this->userId === null) {
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throw new NotFoundException();
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}
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$fileId = str_replace($this->urlGenerator->getAbsoluteURL('/index.php/f/'), '', $reference->getId());
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$fileId = str_replace($this->urlGenerator->getAbsoluteURL('/f/'), '', $fileId);
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$userFolder = $this->rootFolder->getUserFolder($this->userId);
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$files = $userFolder->getById((int)$fileId);
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if (empty($files)) {
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throw new NotFoundException();
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}
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/** @var Node $file */
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$file = array_shift($files);
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$reference->setTitle($file->getName());
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$reference->setDescription($file->getMimetype());
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$reference->setUrl($this->urlGenerator->getAbsoluteURL('/index.php/f/' . $fileId));
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$reference->setImageUrl($this->urlGenerator->linkToRouteAbsolute('core.Preview.getPreviewByFileId', ['x' => 1600, 'y' => 630, 'fileId' => $fileId]));
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$reference->setRichObject('file', [
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'id' => $file->getId(),
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'name' => $file->getName(),
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'size' => $file->getSize(),
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'path' => $file->getPath(),
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'link' => $reference->getUrl(),
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'mimetype' => $file->getMimetype(),
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'preview-available' => false
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]);
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}
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public function isGloballyCacheable(): bool {
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return false;
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}
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public function getCacheKey(string $referenceId): string {
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return $this->userId;
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}
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}
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