2019-10-14 17:55:39 +03:00
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<?php
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/**
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* @copyright Copyright (c) 2019 Julius Härtl <jus@bitgrid.net>
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*
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* @author Julius Härtl <jus@bitgrid.net>
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2019-12-03 21:57:53 +03:00
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* @author Tobias Kaminsky <tobias@kaminsky.me>
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2019-10-14 17:55:39 +03:00
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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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2019-12-03 21:57:53 +03:00
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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2019-10-14 17:55:39 +03:00
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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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*/
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namespace OC\DirectEditing;
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use Doctrine\DBAL\FetchMode;
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use OCP\AppFramework\Http\NotFoundResponse;
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use OCP\AppFramework\Http\Response;
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use OCP\AppFramework\Http\TemplateResponse;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\DirectEditing\ACreateFromTemplate;
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use OCP\DirectEditing\IEditor;
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use \OCP\DirectEditing\IManager;
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use OCP\DirectEditing\IToken;
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2019-11-25 15:56:22 +03:00
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use OCP\DirectEditing\RegisterDirectEditorEvent;
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use OCP\EventDispatcher\IEventDispatcher;
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2019-10-14 17:55:39 +03:00
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use OCP\Files\File;
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use OCP\Files\IRootFolder;
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2019-12-04 14:09:33 +03:00
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use OCP\Files\Node;
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2019-10-14 17:55:39 +03:00
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use OCP\Files\NotFoundException;
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use OCP\IDBConnection;
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2019-12-16 16:58:56 +03:00
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use OCP\IL10N;
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2019-10-14 17:55:39 +03:00
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use OCP\IUserSession;
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2019-12-16 16:58:56 +03:00
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use OCP\L10N\IFactory;
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2019-10-14 17:55:39 +03:00
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use OCP\Security\ISecureRandom;
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use OCP\Share\IShare;
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class Manager implements IManager {
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private const TOKEN_CLEANUP_TIME = 12 * 60 * 60 ;
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public const TABLE_TOKENS = 'direct_edit';
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/** @var IEditor[] */
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2019-11-25 15:56:22 +03:00
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private $editors = [];
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2019-10-14 17:55:39 +03:00
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/** @var IDBConnection */
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private $connection;
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/**
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* @var ISecureRandom
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*/
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private $random;
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private $userId;
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private $rootFolder;
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/** @var IL10N */
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private $l10n;
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public function __construct(
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ISecureRandom $random,
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IDBConnection $connection,
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IUserSession $userSession,
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IRootFolder $rootFolder,
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IFactory $l10nFactory
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) {
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$this->random = $random;
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$this->connection = $connection;
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$this->userId = $userSession->getUser() ? $userSession->getUser()->getUID() : null;
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$this->rootFolder = $rootFolder;
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$this->l10n = $l10nFactory->get('core');
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}
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public function registerDirectEditor(IEditor $directEditor): void {
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$this->editors[$directEditor->getId()] = $directEditor;
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}
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public function getEditors(): array {
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return $this->editors;
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}
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public function getTemplates(string $editor, string $type): array {
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if (!array_key_exists($editor, $this->editors)) {
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throw new \RuntimeException('No matching editor found');
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}
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$templates = [];
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foreach ($this->editors[$editor]->getCreators() as $creator) {
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if ($creator->getId() === $type) {
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$templates = [
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'empty' => [
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'id' => 'empty',
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'title' => $this->l10n->t('Empty file'),
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'preview' => null
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]
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];
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if ($creator instanceof ACreateFromTemplate) {
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$templates = $creator->getTemplates();
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}
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$templates = array_map(function ($template) use ($creator) {
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$template['extension'] = $creator->getExtension();
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$template['mimetype'] = $creator->getMimetype();
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return $template;
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}, $templates);
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2019-10-14 17:55:39 +03:00
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}
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}
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2019-10-31 11:18:05 +03:00
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$return = [];
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$return['templates'] = $templates;
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return $return;
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2019-10-14 17:55:39 +03:00
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}
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public function create(string $path, string $editorId, string $creatorId, $templateId = null): string {
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$userFolder = $this->rootFolder->getUserFolder($this->userId);
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$file = $userFolder->newFile($path);
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$editor = $this->getEditor($editorId);
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$creators = $editor->getCreators();
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foreach ($creators as $creator) {
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if ($creator->getId() === $creatorId) {
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$creator->create($file, $creatorId, $templateId);
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return $this->createToken($editorId, $file, $path);
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2019-10-14 17:55:39 +03:00
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}
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}
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throw new \RuntimeException('No creator found');
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}
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2019-12-04 14:09:33 +03:00
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public function open(string $filePath, string $editorId = null): string {
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/** @var File $file */
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$file = $this->rootFolder->getUserFolder($this->userId)->get($filePath);
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2019-10-14 17:55:39 +03:00
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if ($editorId === null) {
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$editorId = $this->findEditorForFile($file);
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}
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2019-12-04 14:09:33 +03:00
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return $this->createToken($editorId, $file, $filePath);
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2019-10-14 17:55:39 +03:00
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}
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private function findEditorForFile(File $file) {
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foreach ($this->editors as $editor) {
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if (in_array($file->getMimeType(), $editor->getMimetypes())) {
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return $editor->getId();
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}
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}
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throw new \RuntimeException('No default editor found for files mimetype');
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}
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public function edit(string $token): Response {
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try {
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/** @var IEditor $editor */
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$tokenObject = $this->getToken($token);
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if ($tokenObject->hasBeenAccessed()) {
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throw new \RuntimeException('Token has already been used and can only be used for followup requests');
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}
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$editor = $this->getEditor($tokenObject->getEditor());
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$this->accessToken($token);
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} catch (\Throwable $throwable) {
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$this->invalidateToken($token);
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return new NotFoundResponse();
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}
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return $editor->open($tokenObject);
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}
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public function editSecure(File $file, string $editorId): TemplateResponse {
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// TODO: Implementation in follow up
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}
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private function getEditor($editorId): IEditor {
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if (!array_key_exists($editorId, $this->editors)) {
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throw new \RuntimeException('No editor found');
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}
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return $this->editors[$editorId];
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}
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public function getToken(string $token): IToken {
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$query = $this->connection->getQueryBuilder();
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$query->select('*')->from(self::TABLE_TOKENS)
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->where($query->expr()->eq('token', $query->createNamedParameter($token, IQueryBuilder::PARAM_STR)));
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$result = $query->execute();
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if ($tokenRow = $result->fetch(FetchMode::ASSOCIATIVE)) {
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return new Token($this, $tokenRow);
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}
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throw new \RuntimeException('Failed to validate the token');
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}
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public function cleanup(): int {
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$query = $this->connection->getQueryBuilder();
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$query->delete(self::TABLE_TOKENS)
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->where($query->expr()->lt('timestamp', $query->createNamedParameter(time() - self::TOKEN_CLEANUP_TIME)));
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return $query->execute();
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}
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public function refreshToken(string $token): bool {
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$query = $this->connection->getQueryBuilder();
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$query->update(self::TABLE_TOKENS)
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->set('timestamp', $query->createNamedParameter(time(), IQueryBuilder::PARAM_INT))
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->where($query->expr()->eq('token', $query->createNamedParameter($token, IQueryBuilder::PARAM_STR)));
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$result = $query->execute();
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return $result !== 0;
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}
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public function invalidateToken(string $token): bool {
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$query = $this->connection->getQueryBuilder();
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$query->delete(self::TABLE_TOKENS)
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->where($query->expr()->eq('token', $query->createNamedParameter($token, IQueryBuilder::PARAM_STR)));
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$result = $query->execute();
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return $result !== 0;
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}
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public function accessToken(string $token): bool {
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$query = $this->connection->getQueryBuilder();
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$query->update(self::TABLE_TOKENS)
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->set('accessed', $query->createNamedParameter(true, IQueryBuilder::PARAM_BOOL))
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->set('timestamp', $query->createNamedParameter(time(), IQueryBuilder::PARAM_INT))
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->where($query->expr()->eq('token', $query->createNamedParameter($token, IQueryBuilder::PARAM_STR)));
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$result = $query->execute();
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return $result !== 0;
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}
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public function invokeTokenScope($userId): void {
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\OC_User::setIncognitoMode(true);
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\OC_User::setUserId($userId);
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}
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2019-12-04 14:09:33 +03:00
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public function createToken($editorId, File $file, string $filePath, IShare $share = null): string {
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$token = $this->random->generate(64, ISecureRandom::CHAR_HUMAN_READABLE);
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$query = $this->connection->getQueryBuilder();
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$query->insert(self::TABLE_TOKENS)
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->values([
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'token' => $query->createNamedParameter($token),
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'editor_id' => $query->createNamedParameter($editorId),
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'file_id' => $query->createNamedParameter($file->getId()),
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'file_path' => $query->createNamedParameter($filePath),
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'user_id' => $query->createNamedParameter($this->userId),
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'share_id' => $query->createNamedParameter($share !== null ? $share->getId(): null),
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'timestamp' => $query->createNamedParameter(time())
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]);
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$query->execute();
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return $token;
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}
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2019-12-04 14:09:33 +03:00
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/**
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* @param $userId
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* @param $fileId
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* @param null $filePath
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* @return Node
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* @throws NotFoundException
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*/
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public function getFileForToken($userId, $fileId, $filePath = null): Node {
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$userFolder = $this->rootFolder->getUserFolder($userId);
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2019-12-04 14:09:33 +03:00
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if ($filePath !== null) {
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return $userFolder->get($filePath);
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}
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$files = $userFolder->getById($fileId);
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if (count($files) === 0) {
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throw new NotFoundException('File nound found by id ' . $fileId);
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}
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return $files[0];
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2019-10-14 17:55:39 +03:00
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}
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}
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