432 lines
12 KiB
PHP
432 lines
12 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bjoern Schiessle <bjoern@schiessle.org>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Maxence Lange <maxence@nextcloud.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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 OCA\Files_Sharing\Controller;
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use function array_filter;
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use function array_slice;
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use function array_values;
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use Generator;
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use OC\Collaboration\Collaborators\SearchResult;
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use OCP\AppFramework\Http\DataResponse;
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use OCP\AppFramework\OCS\OCSBadRequestException;
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use OCP\AppFramework\OCSController;
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use OCP\Collaboration\Collaborators\ISearch;
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use OCP\Collaboration\Collaborators\ISearchResult;
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use OCP\Collaboration\Collaborators\SearchResultType;
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use OCP\IConfig;
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use OCP\IRequest;
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use OCP\IURLGenerator;
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use OCP\Share;
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use OCP\Share\IManager;
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use function usort;
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class ShareesAPIController extends OCSController {
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/** @var userId */
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protected $userId;
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/** @var IConfig */
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protected $config;
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/** @var IURLGenerator */
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protected $urlGenerator;
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/** @var IManager */
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protected $shareManager;
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/** @var bool */
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protected $shareWithGroupOnly = false;
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/** @var bool */
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protected $shareeEnumeration = true;
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/** @var int */
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protected $offset = 0;
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/** @var int */
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protected $limit = 10;
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/** @var array */
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protected $result = [
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'exact' => [
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'users' => [],
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'groups' => [],
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'remotes' => [],
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'remote_groups' => [],
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'emails' => [],
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'circles' => [],
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'rooms' => [],
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],
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'users' => [],
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'groups' => [],
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'remotes' => [],
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'remote_groups' => [],
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'emails' => [],
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'lookup' => [],
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'circles' => [],
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'rooms' => [],
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'lookupEnabled' => false,
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];
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protected $reachedEndFor = [];
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/** @var ISearch */
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private $collaboratorSearch;
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/**
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* @param string $UserId
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* @param string $appName
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* @param IRequest $request
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* @param IConfig $config
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* @param IURLGenerator $urlGenerator
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* @param IManager $shareManager
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* @param ISearch $collaboratorSearch
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*/
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public function __construct(
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$UserId,
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string $appName,
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IRequest $request,
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IConfig $config,
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IURLGenerator $urlGenerator,
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IManager $shareManager,
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ISearch $collaboratorSearch
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) {
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parent::__construct($appName, $request);
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$this->userId = $UserId;
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$this->config = $config;
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$this->urlGenerator = $urlGenerator;
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$this->shareManager = $shareManager;
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$this->collaboratorSearch = $collaboratorSearch;
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}
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/**
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* @NoAdminRequired
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*
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* @param string $search
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* @param string $itemType
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* @param int $page
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* @param int $perPage
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* @param int|int[] $shareType
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* @param bool $lookup
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* @return DataResponse
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* @throws OCSBadRequestException
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*/
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public function search(string $search = '', string $itemType = null, int $page = 1, int $perPage = 200, $shareType = null, bool $lookup = true): DataResponse {
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// only search for string larger than a given threshold
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$threshold = (int)$this->config->getSystemValue('sharing.minSearchStringLength', 0);
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if (strlen($search) < $threshold) {
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return new DataResponse($this->result);
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}
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// never return more than the max. number of results configured in the config.php
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$maxResults = (int)$this->config->getSystemValue('sharing.maxAutocompleteResults', 0);
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if ($maxResults > 0) {
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$perPage = min($perPage, $maxResults);
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}
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if ($perPage <= 0) {
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throw new OCSBadRequestException('Invalid perPage argument');
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}
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if ($page <= 0) {
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throw new OCSBadRequestException('Invalid page');
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}
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$shareTypes = [
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Share::SHARE_TYPE_USER,
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];
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if ($itemType === null) {
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throw new OCSBadRequestException('Missing itemType');
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} elseif ($itemType === 'file' || $itemType === 'folder') {
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if ($this->shareManager->allowGroupSharing()) {
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$shareTypes[] = Share::SHARE_TYPE_GROUP;
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}
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if ($this->isRemoteSharingAllowed($itemType)) {
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$shareTypes[] = Share::SHARE_TYPE_REMOTE;
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}
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if ($this->isRemoteGroupSharingAllowed($itemType)) {
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$shareTypes[] = Share::SHARE_TYPE_REMOTE_GROUP;
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}
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if ($this->shareManager->shareProviderExists(Share::SHARE_TYPE_EMAIL)) {
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$shareTypes[] = Share::SHARE_TYPE_EMAIL;
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}
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if ($this->shareManager->shareProviderExists(Share::SHARE_TYPE_ROOM)) {
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$shareTypes[] = Share::SHARE_TYPE_ROOM;
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}
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} else {
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$shareTypes[] = Share::SHARE_TYPE_GROUP;
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$shareTypes[] = Share::SHARE_TYPE_EMAIL;
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}
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// FIXME: DI
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if (\OC::$server->getAppManager()->isEnabledForUser('circles') && class_exists('\OCA\Circles\ShareByCircleProvider')) {
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$shareTypes[] = Share::SHARE_TYPE_CIRCLE;
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}
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if (isset($_GET['shareType']) && is_array($_GET['shareType'])) {
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$shareTypes = array_intersect($shareTypes, $_GET['shareType']);
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sort($shareTypes);
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} else if (is_numeric($shareType)) {
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$shareTypes = array_intersect($shareTypes, [(int) $shareType]);
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sort($shareTypes);
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}
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$this->shareWithGroupOnly = $this->config->getAppValue('core', 'shareapi_only_share_with_group_members', 'no') === 'yes';
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$this->shareeEnumeration = $this->config->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes') === 'yes';
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$this->limit = (int) $perPage;
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$this->offset = $perPage * ($page - 1);
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// In global scale mode we always search the loogup server
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if ($this->config->getSystemValueBool('gs.enabled', false)) {
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$lookup = true;
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$this->result['lookupEnabled'] = true;
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} else {
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$this->result['lookupEnabled'] = $this->config->getAppValue('files_sharing', 'lookupServerEnabled', 'yes') === 'yes';
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}
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list($result, $hasMoreResults) = $this->collaboratorSearch->search($search, $shareTypes, $lookup, $this->limit, $this->offset);
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// extra treatment for 'exact' subarray, with a single merge expected keys might be lost
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if(isset($result['exact'])) {
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$result['exact'] = array_merge($this->result['exact'], $result['exact']);
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}
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$this->result = array_merge($this->result, $result);
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$response = new DataResponse($this->result);
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if ($hasMoreResults) {
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$response->addHeader('Link', $this->getPaginationLink($page, [
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'search' => $search,
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'itemType' => $itemType,
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'shareType' => $shareTypes,
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'perPage' => $perPage,
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]));
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}
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return $response;
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}
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/**
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* @param string $user
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* @param int $shareType
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*
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* @return Generator<array<string>>
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*/
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private function getAllShareesByType(string $user, int $shareType): Generator {
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$offset = 0;
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$pageSize = 50;
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while (count($page = $this->shareManager->getSharesBy(
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$user,
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$shareType,
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null,
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false,
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$pageSize,
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$offset
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))) {
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foreach ($page as $share) {
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yield [$share->getSharedWith(), $share->getSharedWithDisplayName() ?? $share->getSharedWith()];
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}
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$offset += $pageSize;
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}
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}
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private function sortShareesByFrequency(array $sharees): array {
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usort($sharees, function(array $s1, array $s2) {
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return $s2['count'] - $s1['count'];
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});
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return $sharees;
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}
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private $searchResultTypeMap = [
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Share::SHARE_TYPE_USER => 'users',
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Share::SHARE_TYPE_GROUP => 'groups',
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Share::SHARE_TYPE_REMOTE => 'remotes',
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Share::SHARE_TYPE_REMOTE_GROUP => 'remote_groups',
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Share::SHARE_TYPE_EMAIL => 'emails',
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];
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private function getAllSharees(string $user, array $shareTypes): ISearchResult {
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$result = [];
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foreach ($shareTypes as $shareType) {
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$sharees = $this->getAllShareesByType($user, $shareType);
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$shareTypeResults = [];
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foreach ($sharees as list($sharee, $displayname)) {
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if (!isset($this->searchResultTypeMap[$shareType])) {
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continue;
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}
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if (!isset($shareTypeResults[$sharee])) {
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$shareTypeResults[$sharee] = [
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'count' => 1,
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'label' => $displayname,
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'value' => [
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'shareType' => $shareType,
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'shareWith' => $sharee,
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],
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];
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} else {
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$shareTypeResults[$sharee]['count']++;
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}
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}
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$result = array_merge($result, array_values($shareTypeResults));
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}
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$top5 = array_slice(
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$this->sortShareesByFrequency($result),
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0,
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5
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);
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$searchResult = new SearchResult();
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foreach ($this->searchResultTypeMap as $int => $str) {
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$searchResult->addResultSet(new SearchResultType($str), [], []);
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foreach ($top5 as $x) {
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if ($x['value']['shareType'] === $int) {
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$searchResult->addResultSet(new SearchResultType($str), [], [$x]);
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}
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}
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}
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return $searchResult;
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}
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/**
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* @NoAdminRequired
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*
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* @param string $itemType
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* @return DataResponse
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* @throws OCSBadRequestException
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*/
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public function findRecommended(string $itemType = null, $shareType = null): DataResponse {
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$shareTypes = [
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Share::SHARE_TYPE_USER,
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];
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if ($itemType === null) {
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throw new OCSBadRequestException('Missing itemType');
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} elseif ($itemType === 'file' || $itemType === 'folder') {
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if ($this->shareManager->allowGroupSharing()) {
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$shareTypes[] = Share::SHARE_TYPE_GROUP;
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}
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if ($this->isRemoteSharingAllowed($itemType)) {
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$shareTypes[] = Share::SHARE_TYPE_REMOTE;
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}
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if ($this->isRemoteGroupSharingAllowed($itemType)) {
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$shareTypes[] = Share::SHARE_TYPE_REMOTE_GROUP;
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}
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if ($this->shareManager->shareProviderExists(Share::SHARE_TYPE_EMAIL)) {
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$shareTypes[] = Share::SHARE_TYPE_EMAIL;
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}
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if ($this->shareManager->shareProviderExists(Share::SHARE_TYPE_ROOM)) {
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$shareTypes[] = Share::SHARE_TYPE_ROOM;
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}
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} else {
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$shareTypes[] = Share::SHARE_TYPE_GROUP;
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$shareTypes[] = Share::SHARE_TYPE_EMAIL;
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}
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// FIXME: DI
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if (\OC::$server->getAppManager()->isEnabledForUser('circles') && class_exists('\OCA\Circles\ShareByCircleProvider')) {
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$shareTypes[] = Share::SHARE_TYPE_CIRCLE;
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}
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if (isset($_GET['shareType']) && is_array($_GET['shareType'])) {
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$shareTypes = array_intersect($shareTypes, $_GET['shareType']);
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sort($shareTypes);
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} else if (is_numeric($shareType)) {
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$shareTypes = array_intersect($shareTypes, [(int) $shareType]);
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sort($shareTypes);
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}
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return new DataResponse(
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$this->getAllSharees($this->userId, $shareTypes)->asArray()
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);
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}
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/**
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* Method to get out the static call for better testing
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*
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* @param string $itemType
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* @return bool
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*/
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protected function isRemoteSharingAllowed(string $itemType): bool {
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try {
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// FIXME: static foo makes unit testing unnecessarily difficult
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$backend = \OC\Share\Share::getBackend($itemType);
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return $backend->isShareTypeAllowed(Share::SHARE_TYPE_REMOTE);
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} catch (\Exception $e) {
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return false;
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}
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}
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protected function isRemoteGroupSharingAllowed(string $itemType): bool {
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try {
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// FIXME: static foo makes unit testing unnecessarily difficult
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$backend = \OC\Share\Share::getBackend($itemType);
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return $backend->isShareTypeAllowed(Share::SHARE_TYPE_REMOTE_GROUP);
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} catch (\Exception $e) {
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return false;
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}
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}
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/**
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* Generates a bunch of pagination links for the current page
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*
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* @param int $page Current page
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* @param array $params Parameters for the URL
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* @return string
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*/
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protected function getPaginationLink(int $page, array $params): string {
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if ($this->isV2()) {
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$url = $this->urlGenerator->getAbsoluteURL('/ocs/v2.php/apps/files_sharing/api/v1/sharees') . '?';
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} else {
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$url = $this->urlGenerator->getAbsoluteURL('/ocs/v1.php/apps/files_sharing/api/v1/sharees') . '?';
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}
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$params['page'] = $page + 1;
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return '<' . $url . http_build_query($params) . '>; rel="next"';
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}
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/**
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* @return bool
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*/
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protected function isV2(): bool {
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return $this->request->getScriptName() === '/ocs/v2.php';
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}
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}
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