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@@ -0,0 +1,594 @@
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+<?php
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+/**
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+ * @copyright Copyright (c) 2016 Bjoern Schiessle <bjoern@schiessle.org>
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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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+ */
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+
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+namespace OCA\ShareByMail;
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+
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+use OCP\Files\IRootFolder;
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+use OCP\Files\Node;
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+use OCP\IDBConnection;
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+use OCP\IL10N;
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+use OCP\ILogger;
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+use OCP\IUserManager;
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+use OCP\Security\ISecureRandom;
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+use OC\Share20\Share;
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+use OCP\Share\IShare;
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+use OCP\Share\IShareProvider;
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+
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+/**
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+ * Class ShareByMail
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+ *
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+ * @package OCA\ShareByMail
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+ */
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+class ShareByMailProvider implements IShareProvider {
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+
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+ /** @var IDBConnection */
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+ private $dbConnection;
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+
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+ /** @var ILogger */
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+ private $logger;
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+
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+ /** @var ISecureRandom */
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+ private $secureRandom;
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+
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+ /** @var IUserManager */
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+ private $userManager;
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+
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+ /** @var IRootFolder */
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+ private $rootFolder;
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+
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+ /** @var IL10N */
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+ private $l;
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+
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+ /**
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+ * Return the identifier of this provider.
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+ *
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+ * @return string Containing only [a-zA-Z0-9]
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+ */
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+ public function identifier() {
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+ return 'ocShareByMail';
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+ }
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+
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+ /**
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+ * DefaultShareProvider constructor.
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+ *
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+ * @param IDBConnection $connection
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+ * @param ISecureRandom $secureRandom
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+ * @param IUserManager $userManager
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+ * @param IRootFolder $rootFolder
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+ * @param IL10N $l
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+ * @param ILogger $logger
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+ */
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+ public function __construct(
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+ IDBConnection $connection,
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+ ISecureRandom $secureRandom,
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+ IUserManager $userManager,
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+ IRootFolder $rootFolder,
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+ IL10N $l,
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+ ILogger $logger
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+ ) {
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+ $this->dbConnection = $connection;
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+ $this->secureRandom = $secureRandom;
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+ $this->userManager = $userManager;
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+ $this->rootFolder = $rootFolder;
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+ $this->l = $l;
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+ $this->logger = $logger;
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+ }
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+
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+ /**
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+ * Share a path
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+ *
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+ * @param IShare $share
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+ * @return IShare The share object
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+ * @throws ShareNotFound
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+ * @throws \Exception
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+ */
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+ public function create(IShare $share) {
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+
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+ $shareWith = $share->getSharedWith();
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+ /*
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+ * Check if file is not already shared with the remote user
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+ */
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+ $alreadyShared = $this->getSharedWith($shareWith, \OCP\Share::SHARE_TYPE_EMAIL, $share->getNode(), 1, 0);
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+ if (!empty($alreadyShared)) {
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+ $message = 'Sharing %s failed, this item is already shared with %s';
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+ $message_t = $this->l->t('Sharing %s failed, this item is already shared with %s', array($share->getNode()->getName(), $shareWith));
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+ $this->logger->debug(sprintf($message, $share->getNode()->getName(), $shareWith), ['app' => 'Federated File Sharing']);
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+ throw new \Exception($message_t);
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+ }
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+
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+ $shareId = $this->createMailShare($share);
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+
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+ $data = $this->getRawShare($shareId);
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+ return $this->createShareObject($data);
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+
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+ }
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+
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+ /**
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+ * @param IShare $share
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+ * @return int
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+ * @throws \Exception
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+ */
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+ private function createMailShare(IShare $share) {
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+ $token = $this->generateToken();
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+ $shareId = $this->addShareToDB(
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+ $share->getNodeId(),
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+ $share->getNodeType(),
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+ $share->getSharedWith(),
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+ $share->getSharedBy(),
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+ $share->getShareOwner(),
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+ $share->getPermissions(),
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+ $token
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+ );
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+
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+ try {
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+ // TODO: Send email with public link
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+ } catch (\Exception $e) {
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+ $this->logger->error('Failed to notify remote server of federated share, removing share (' . $e->getMessage() . ')');
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+ $this->removeShareFromTable($shareId);
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+ throw $e;
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+ }
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+
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+ return $shareId;
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+
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+ }
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+
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+ /**
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+ * generate share token
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+ *
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+ * @return string
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+ */
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+ public function generateToken() {
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+ $token = $this->secureRandom->generate(
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+ 15, ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_UPPER . ISecureRandom::CHAR_DIGITS);
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+ return $token;
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+ }
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+
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+ /**
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+ * Get all children of this share
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+ *
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+ * @param IShare $parent
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+ * @return IShare[]
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+ */
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+ public function getChildren(IShare $parent) {
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+ $children = [];
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+
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+ $qb = $this->dbConnection->getQueryBuilder();
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+ $qb->select('*')
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+ ->from('share')
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+ ->where($qb->expr()->eq('parent', $qb->createNamedParameter($parent->getId())))
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+ ->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL)))
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+ ->orderBy('id');
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+
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+ $cursor = $qb->execute();
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+ while($data = $cursor->fetch()) {
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+ $children[] = $this->createShareObject($data);
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+ }
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+ $cursor->closeCursor();
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+
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+ return $children;
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+ }
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+
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+ /**
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+ * add share to the database and return the ID
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+ *
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+ * @param int $itemSource
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+ * @param string $itemType
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+ * @param string $shareWith
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+ * @param string $sharedBy
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+ * @param string $uidOwner
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+ * @param int $permissions
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+ * @param string $token
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+ * @return int
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+ */
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+ private function addShareToDB($itemSource, $itemType, $shareWith, $sharedBy, $uidOwner, $permissions, $token) {
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+ $qb = $this->dbConnection->getQueryBuilder();
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+ $qb->insert('share')
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+ ->setValue('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL))
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+ ->setValue('item_type', $qb->createNamedParameter($itemType))
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+ ->setValue('item_source', $qb->createNamedParameter($itemSource))
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+ ->setValue('file_source', $qb->createNamedParameter($itemSource))
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+ ->setValue('share_with', $qb->createNamedParameter($shareWith))
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+ ->setValue('uid_owner', $qb->createNamedParameter($uidOwner))
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+ ->setValue('uid_initiator', $qb->createNamedParameter($sharedBy))
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+ ->setValue('permissions', $qb->createNamedParameter($permissions))
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+ ->setValue('token', $qb->createNamedParameter($token))
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+ ->setValue('stime', $qb->createNamedParameter(time()));
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+
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+ /*
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+ * Added to fix https://github.com/owncloud/core/issues/22215
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+ * Can be removed once we get rid of ajax/share.php
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+ */
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+ $qb->setValue('file_target', $qb->createNamedParameter(''));
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+
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+ $qb->execute();
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+ $id = $qb->getLastInsertId();
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+
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+ return (int)$id;
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+ }
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+
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+ /**
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+ * Update a share
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+ *
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+ * @param IShare $share
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+ * @return IShare The share object
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+ */
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+ public function update(IShare $share) {
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+ /*
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+ * We allow updating the permissions of mail shares
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+ */
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+ $qb = $this->dbConnection->getQueryBuilder();
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+ $qb->update('share')
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+ ->where($qb->expr()->eq('id', $qb->createNamedParameter($share->getId())))
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+ ->set('permissions', $qb->createNamedParameter($share->getPermissions()))
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+ ->set('uid_owner', $qb->createNamedParameter($share->getShareOwner()))
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+ ->set('uid_initiator', $qb->createNamedParameter($share->getSharedBy()))
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+ ->execute();
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+
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+ return $share;
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+ }
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+
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+ /**
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+ * @inheritdoc
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+ */
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+ public function move(IShare $share, $recipient) {
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+ /**
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+ * nothing to do here, mail shares are only outgoing shares
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+ */
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+ return $share;
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+ }
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+
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+ /**
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+ * Delete a share (owner unShares the file)
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+ *
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+ * @param IShare $share
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+ */
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+ public function delete(IShare $share) {
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+ $this->removeShareFromTable($share->getId());
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+ }
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+
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+ /**
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+ * @inheritdoc
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+ */
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+ public function deleteFromSelf(IShare $share, $recipient) {
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+ // nothing to do here, mail shares are only outgoing shares
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+ return;
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+ }
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+
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+ /**
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+ * @inheritdoc
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+ */
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+ public function getSharesBy($userId, $shareType, $node, $reshares, $limit, $offset) {
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+ $qb = $this->dbConnection->getQueryBuilder();
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+ $qb->select('*')
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+ ->from('share');
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+
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+ $qb->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL)));
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+
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+ /**
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+ * Reshares for this user are shares where they are the owner.
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+ */
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+ if ($reshares === false) {
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+ //Special case for old shares created via the web UI
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+ $or1 = $qb->expr()->andX(
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+ $qb->expr()->eq('uid_owner', $qb->createNamedParameter($userId)),
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+ $qb->expr()->isNull('uid_initiator')
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+ );
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+
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+ $qb->andWhere(
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+ $qb->expr()->orX(
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+ $qb->expr()->eq('uid_initiator', $qb->createNamedParameter($userId)),
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+ $or1
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+ )
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+ );
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+ } else {
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+ $qb->andWhere(
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+ $qb->expr()->orX(
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+ $qb->expr()->eq('uid_owner', $qb->createNamedParameter($userId)),
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+ $qb->expr()->eq('uid_initiator', $qb->createNamedParameter($userId))
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+ )
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+ );
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+ }
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+
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+ if ($node !== null) {
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+ $qb->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($node->getId())));
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+ }
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+
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+ if ($limit !== -1) {
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+ $qb->setMaxResults($limit);
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+ }
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+
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+ $qb->setFirstResult($offset);
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+ $qb->orderBy('id');
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+
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+ $cursor = $qb->execute();
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+ $shares = [];
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+ while($data = $cursor->fetch()) {
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+ $shares[] = $this->createShareObject($data);
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+ }
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+ $cursor->closeCursor();
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+
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+ return $shares;
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+ }
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+
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+ /**
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+ * @inheritdoc
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+ */
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+ public function getShareById($id, $recipientId = null) {
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+ $qb = $this->dbConnection->getQueryBuilder();
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+
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+ $qb->select('*')
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+ ->from('share')
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+ ->where($qb->expr()->eq('id', $qb->createNamedParameter($id)))
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+ ->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL)));
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+
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+ $cursor = $qb->execute();
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+ $data = $cursor->fetch();
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+ $cursor->closeCursor();
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+
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+ if ($data === false) {
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+ throw new ShareNotFound();
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+ }
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+
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+ try {
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+ $share = $this->createShareObject($data);
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+ } catch (InvalidShare $e) {
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+ throw new ShareNotFound();
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+ }
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+
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+ return $share;
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+ }
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+
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+ /**
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+ * Get shares for a given path
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+ *
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+ * @param \OCP\Files\Node $path
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+ * @return IShare[]
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+ */
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+ public function getSharesByPath(Node $path) {
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+ $qb = $this->dbConnection->getQueryBuilder();
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+
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+ $cursor = $qb->select('*')
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+ ->from('share')
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+ ->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($path->getId())))
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+ ->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL)))
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+ ->execute();
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+
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+ $shares = [];
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+ while($data = $cursor->fetch()) {
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+ $shares[] = $this->createShareObject($data);
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+ }
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+ $cursor->closeCursor();
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+
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+ return $shares;
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+ }
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+
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+ /**
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+ * @inheritdoc
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+ */
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+ public function getSharedWith($userId, $shareType, $node, $limit, $offset) {
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+ /** @var IShare[] $shares */
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+ $shares = [];
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+
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+ //Get shares directly with this user
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+ $qb = $this->dbConnection->getQueryBuilder();
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+ $qb->select('*')
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+ ->from('share');
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+
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+ // Order by id
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+ $qb->orderBy('id');
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+
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+ // Set limit and offset
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+ if ($limit !== -1) {
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+ $qb->setMaxResults($limit);
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+ }
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+ $qb->setFirstResult($offset);
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+
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+ $qb->where($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL)));
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+ $qb->andWhere($qb->expr()->eq('share_with', $qb->createNamedParameter($userId)));
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+
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+ // Filter by node if provided
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+ if ($node !== null) {
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+ $qb->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($node->getId())));
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+ }
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+
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+ $cursor = $qb->execute();
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+
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+ while($data = $cursor->fetch()) {
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+ $shares[] = $this->createShareObject($data);
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+ }
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+ $cursor->closeCursor();
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+
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+
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+ return $shares;
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+ }
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+
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+ /**
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+ * Get a share by token
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+ *
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+ * @param string $token
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+ * @return IShare
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+ * @throws ShareNotFound
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|
|
+ */
|
|
|
+ public function getShareByToken($token) {
|
|
|
+ $qb = $this->dbConnection->getQueryBuilder();
|
|
|
+
|
|
|
+ $cursor = $qb->select('*')
|
|
|
+ ->from('share')
|
|
|
+ ->where($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_EMAIL)))
|
|
|
+ ->andWhere($qb->expr()->eq('token', $qb->createNamedParameter($token)))
|
|
|
+ ->execute();
|
|
|
+
|
|
|
+ $data = $cursor->fetch();
|
|
|
+
|
|
|
+ if ($data === false) {
|
|
|
+ throw new ShareNotFound('Share not found', $this->l->t('Could not find share'));
|
|
|
+ }
|
|
|
+
|
|
|
+ try {
|
|
|
+ $share = $this->createShareObject($data);
|
|
|
+ } catch (InvalidShare $e) {
|
|
|
+ throw new ShareNotFound('Share not found', $this->l->t('Could not find share'));
|
|
|
+ }
|
|
|
+
|
|
|
+ return $share;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * remove share from table
|
|
|
+ *
|
|
|
+ * @param string $shareId
|
|
|
+ */
|
|
|
+ private function removeShareFromTable($shareId) {
|
|
|
+ $qb = $this->dbConnection->getQueryBuilder();
|
|
|
+ $qb->delete('share')
|
|
|
+ ->where($qb->expr()->eq('id', $qb->createNamedParameter($shareId)));
|
|
|
+ $qb->execute();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Create a share object from an database row
|
|
|
+ *
|
|
|
+ * @param array $data
|
|
|
+ * @return IShare
|
|
|
+ * @throws InvalidShare
|
|
|
+ * @throws ShareNotFound
|
|
|
+ */
|
|
|
+ private function createShareObject($data) {
|
|
|
+
|
|
|
+ $share = new Share($this->rootFolder, $this->userManager);
|
|
|
+ $share->setId((int)$data['id'])
|
|
|
+ ->setShareType((int)$data['share_type'])
|
|
|
+ ->setPermissions((int)$data['permissions'])
|
|
|
+ ->setTarget($data['file_target'])
|
|
|
+ ->setMailSend((bool)$data['mail_send'])
|
|
|
+ ->setToken($data['token']);
|
|
|
+
|
|
|
+ $shareTime = new \DateTime();
|
|
|
+ $shareTime->setTimestamp((int)$data['stime']);
|
|
|
+ $share->setShareTime($shareTime);
|
|
|
+ $share->setSharedWith($data['share_with']);
|
|
|
+
|
|
|
+ if ($data['uid_initiator'] !== null) {
|
|
|
+ $share->setShareOwner($data['uid_owner']);
|
|
|
+ $share->setSharedBy($data['uid_initiator']);
|
|
|
+ } else {
|
|
|
+ //OLD SHARE
|
|
|
+ $share->setSharedBy($data['uid_owner']);
|
|
|
+ $path = $this->getNode($share->getSharedBy(), (int)$data['file_source']);
|
|
|
+
|
|
|
+ $owner = $path->getOwner();
|
|
|
+ $share->setShareOwner($owner->getUID());
|
|
|
+ }
|
|
|
+
|
|
|
+ $share->setNodeId((int)$data['file_source']);
|
|
|
+ $share->setNodeType($data['item_type']);
|
|
|
+
|
|
|
+ $share->setProviderId($this->identifier());
|
|
|
+
|
|
|
+ return $share;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Get the node with file $id for $user
|
|
|
+ *
|
|
|
+ * @param string $userId
|
|
|
+ * @param int $id
|
|
|
+ * @return \OCP\Files\File|\OCP\Files\Folder
|
|
|
+ * @throws InvalidShare
|
|
|
+ */
|
|
|
+ private function getNode($userId, $id) {
|
|
|
+ try {
|
|
|
+ $userFolder = $this->rootFolder->getUserFolder($userId);
|
|
|
+ } catch (NotFoundException $e) {
|
|
|
+ throw new InvalidShare();
|
|
|
+ }
|
|
|
+
|
|
|
+ $nodes = $userFolder->getById($id);
|
|
|
+
|
|
|
+ if (empty($nodes)) {
|
|
|
+ throw new InvalidShare();
|
|
|
+ }
|
|
|
+
|
|
|
+ return $nodes[0];
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * A user is deleted from the system
|
|
|
+ * So clean up the relevant shares.
|
|
|
+ *
|
|
|
+ * @param string $uid
|
|
|
+ * @param int $shareType
|
|
|
+ */
|
|
|
+ public function userDeleted($uid, $shareType) {
|
|
|
+ $qb = $this->dbConnection->getQueryBuilder();
|
|
|
+
|
|
|
+ $qb->delete('share')
|
|
|
+ ->where($qb->expr()->eq('share_type', $qb->createNamedParameter(Share::SHARE_TYPE_REMOTE)))
|
|
|
+ ->andWhere($qb->expr()->eq('uid_owner', $qb->createNamedParameter($uid)))
|
|
|
+ ->execute();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * This provider does not support group shares
|
|
|
+ *
|
|
|
+ * @param string $gid
|
|
|
+ */
|
|
|
+ public function groupDeleted($gid) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * This provider does not support group shares
|
|
|
+ *
|
|
|
+ * @param string $uid
|
|
|
+ * @param string $gid
|
|
|
+ */
|
|
|
+ public function userDeletedFromGroup($uid, $gid) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * get database row of a give share
|
|
|
+ *
|
|
|
+ * @param $id
|
|
|
+ * @return array
|
|
|
+ * @throws ShareNotFound
|
|
|
+ */
|
|
|
+ private function getRawShare($id) {
|
|
|
+
|
|
|
+ // Now fetch the inserted share and create a complete share object
|
|
|
+ $qb = $this->dbConnection->getQueryBuilder();
|
|
|
+ $qb->select('*')
|
|
|
+ ->from('share')
|
|
|
+ ->where($qb->expr()->eq('id', $qb->createNamedParameter($id)));
|
|
|
+
|
|
|
+ $cursor = $qb->execute();
|
|
|
+ $data = $cursor->fetch();
|
|
|
+ $cursor->closeCursor();
|
|
|
+
|
|
|
+ if ($data === false) {
|
|
|
+ throw new ShareNotFound;
|
|
|
+ }
|
|
|
+
|
|
|
+ return $data;
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
Bjoern Schiessle