242 lines
7.5 KiB
PHP
242 lines
7.5 KiB
PHP
<?php
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/**
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* ownCloud - OCS API for server-to-server shares
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*
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* @copyright (C) 2014 ownCloud, Inc.
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*
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* @author Bjoern Schiessle <schiessle@owncloud.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library 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
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\Files_Sharing\API;
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class Server2Server {
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/**
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* create a new share
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*
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* @param array $params
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* @return \OC_OCS_Result
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*/
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public function createShare($params) {
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if (!$this->isS2SEnabled(true)) {
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return new \OC_OCS_Result(null, 503, 'Server does not support federated cloud sharing');
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}
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$remote = isset($_POST['remote']) ? $_POST['remote'] : null;
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$name = isset($_POST['name']) ? $_POST['name'] : null;
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$owner = isset($_POST['owner']) ? $_POST['owner'] : null;
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$shareWith = isset($_POST['shareWith']) ? $_POST['shareWith'] : null;
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$remoteId = isset($_POST['remoteId']) ? (int)$_POST['remoteId'] : null;
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if ($remote && $token && $name && $owner && $remoteId && $shareWith) {
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if(!\OCP\Util::isValidFileName($name)) {
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return new \OC_OCS_Result(null, 400, 'The mountpoint name contains invalid characters.');
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}
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if (!\OCP\User::userExists($shareWith)) {
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return new \OC_OCS_Result(null, 400, 'User does not exists');
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}
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\OC_Util::setupFS($shareWith);
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$externalManager = new \OCA\Files_Sharing\External\Manager(
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\OC::$server->getDatabaseConnection(),
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\OC\Files\Filesystem::getMountManager(),
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\OC\Files\Filesystem::getLoader(),
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\OC::$server->getHTTPHelper(),
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$shareWith
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);
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$name = \OCP\Files::buildNotExistingFileName('/', $name);
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try {
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$externalManager->addShare($remote, $token, '', $name, $owner, false, $shareWith, $remoteId);
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$user = $owner . '@' . $this->cleanupRemote($remote);
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\OC::$server->getActivityManager()->publishActivity(
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'files_sharing', \OCA\Files_Sharing\Activity::SUBJECT_REMOTE_SHARE_RECEIVED, array($user), '', array(),
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'', '', $shareWith, \OCA\Files_Sharing\Activity::TYPE_REMOTE_SHARE, \OCA\Files_Sharing\Activity::PRIORITY_LOW);
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return new \OC_OCS_Result();
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} catch (\Exception $e) {
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\OCP\Util::writeLog('files_sharing', 'server can not add remote share, ' . $e->getMessage(), \OCP\Util::ERROR);
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return new \OC_OCS_Result(null, 500, 'internal server error, was not able to add share from ' . $remote);
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}
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}
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return new \OC_OCS_Result(null, 400, 'server can not add remote share, missing parameter');
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}
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/**
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* accept server-to-server share
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*
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* @param array $params
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* @return \OC_OCS_Result
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*/
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public function acceptShare($params) {
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if (!$this->isS2SEnabled()) {
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return new \OC_OCS_Result(null, 503, 'Server does not support federated cloud sharing');
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}
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$id = $params['id'];
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$share = self::getShare($id, $token);
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if ($share) {
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list($file, $link) = self::getFile($share['uid_owner'], $share['file_source']);
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\OC::$server->getActivityManager()->publishActivity(
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'files_sharing', \OCA\Files_Sharing\Activity::SUBJECT_REMOTE_SHARE_ACCEPTED, array($share['share_with'], basename($file)), '', array(),
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$file, $link, $share['uid_owner'], \OCA\Files_Sharing\Activity::TYPE_REMOTE_SHARE, \OCA\Files_Sharing\Activity::PRIORITY_LOW);
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}
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return new \OC_OCS_Result();
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}
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/**
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* decline server-to-server share
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*
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* @param array $params
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* @return \OC_OCS_Result
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*/
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public function declineShare($params) {
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if (!$this->isS2SEnabled()) {
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return new \OC_OCS_Result(null, 503, 'Server does not support federated cloud sharing');
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}
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$id = $params['id'];
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$share = $this->getShare($id, $token);
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if ($share) {
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// userId must be set to the user who unshares
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\OCP\Share::unshare($share['item_type'], $share['item_source'], $share['share_type'], null, $share['uid_owner']);
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list($file, $link) = $this->getFile($share['uid_owner'], $share['file_source']);
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\OC::$server->getActivityManager()->publishActivity(
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'files_sharing', \OCA\Files_Sharing\Activity::SUBJECT_REMOTE_SHARE_DECLINED, array($share['share_with'], basename($file)), '', array(),
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$file, $link, $share['uid_owner'], \OCA\Files_Sharing\Activity::TYPE_REMOTE_SHARE, \OCA\Files_Sharing\Activity::PRIORITY_LOW);
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}
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return new \OC_OCS_Result();
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}
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/**
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* remove server-to-server share if it was unshared by the owner
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*
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* @param array $params
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* @return \OC_OCS_Result
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*/
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public function unshare($params) {
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if (!$this->isS2SEnabled()) {
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return new \OC_OCS_Result(null, 503, 'Server does not support federated cloud sharing');
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}
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$id = $params['id'];
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$query = \OCP\DB::prepare('SELECT * FROM `*PREFIX*share_external` WHERE `remote_id` = ? AND `share_token` = ?');
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$query->execute(array($id, $token));
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$share = $query->fetchRow();
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if ($token && $id && !empty($share)) {
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$remote = $this->cleanupRemote($share['remote']);
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$owner = $share['owner'] . '@' . $remote;
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$mountpoint = $share['mountpoint'];
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$user = $share['user'];
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$query = \OCP\DB::prepare('DELETE FROM `*PREFIX*share_external` WHERE `remote_id` = ? AND `share_token` = ?');
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$query->execute(array($id, $token));
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\OC::$server->getActivityManager()->publishActivity(
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'files_sharing', \OCA\Files_Sharing\Activity::SUBJECT_REMOTE_SHARE_UNSHARED, array($owner, $mountpoint), '', array(),
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'', '', $user, \OCA\Files_Sharing\Activity::TYPE_REMOTE_SHARE, \OCA\Files_Sharing\Activity::PRIORITY_MEDIUM);
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}
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return new \OC_OCS_Result();
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}
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private function cleanupRemote($remote) {
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$remote = substr($remote, strpos($remote, '://') + 3);
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return rtrim($remote, '/');
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}
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/**
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* get share
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*
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* @param int $id
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* @param string $token
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* @return array
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*/
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private function getShare($id, $token) {
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$query = \OCP\DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `id` = ? AND `token` = ? AND `share_type` = ?');
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$query->execute(array($id, $token, \OCP\Share::SHARE_TYPE_REMOTE));
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$share = $query->fetchRow();
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return $share;
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}
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/**
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* get file
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*
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* @param string $user
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* @param int $fileSource
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* @return array with internal path of the file and a absolute link to it
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*/
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private function getFile($user, $fileSource) {
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\OC_Util::setupFS($user);
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$file = \OC\Files\Filesystem::getPath($fileSource);
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$args = \OC\Files\Filesystem::is_dir($file) ? array('dir' => $file) : array('dir' => dirname($file), 'scrollto' => $file);
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$link = \OCP\Util::linkToAbsolute('files', 'index.php', $args);
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return array($file, $link);
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}
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/**
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* check if server-to-server sharing is enabled
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*
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* @param bool $incoming
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* @return bool
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*/
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private function isS2SEnabled($incoming = false) {
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$result = \OCP\App::isEnabled('files_sharing');
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if ($incoming) {
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$result = $result && \OCA\Files_Sharing\Helper::isIncomingServer2serverShareEnabled();
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} else {
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$result = $result && \OCA\Files_Sharing\Helper::isOutgoingServer2serverShareEnabled();
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}
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return $result;
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}
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}
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