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<?php |
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/** |
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* @copyright Copyright (c) 2016 Julius Härtl <[email protected]> |
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* |
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* @author Julius Härtl <[email protected]> |
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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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namespace OCA\Deck\Service; |
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use OCA\Deck\Db\Acl; |
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use OCA\Deck\Db\AclMapper; |
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use OCA\Deck\Db\BoardMapper; |
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use OCA\Deck\Db\IPermissionMapper; |
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use OCA\Deck\NoPermissionException; |
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use OCP\AppFramework\Db\DoesNotExistException; |
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use OCP\IGroupManager; |
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use OCP\ILogger; |
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class PermissionService { |
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private $boardMapper; |
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private $aclMapper; |
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private $logger; |
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private $userId; |
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public function __construct(ILogger $logger, AclMapper $aclMapper, BoardMapper $boardMapper, IGroupManager $groupManager, $userId) { |
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$this->aclMapper = $aclMapper; |
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$this->boardMapper = $boardMapper; |
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$this->logger = $logger; |
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$this->groupManager = $groupManager; |
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$this->userId = $userId; |
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} |
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/** |
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* Get current user permissions for a board |
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* |
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* @param $boardId |
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* @return bool|array |
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*/ |
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public function getPermissions($boardId) { |
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$owner = $this->userIsBoardOwner($boardId); |
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$acls = $this->aclMapper->findAll($boardId); |
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return [ |
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Acl::PERMISSION_READ => $owner || $this->userCan($acls, Acl::PERMISSION_READ), |
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Acl::PERMISSION_EDIT => $owner || $this->userCan($acls, Acl::PERMISSION_EDIT), |
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Acl::PERMISSION_MANAGE => $owner || $this->userCan($acls, Acl::PERMISSION_MANAGE), |
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Acl::PERMISSION_SHARE => $owner || $this->userCan($acls, Acl::PERMISSION_SHARE), |
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]; |
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} |
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/** |
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* check permissions for replacing dark magic middleware |
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* |
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* @param $mapper IPermissionMapper|null null if $id is a boardId |
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* @param $id int unique identifier of the Entity |
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* @param $permission int |
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* @return bool |
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* @throws NoPermissionException |
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*/ |
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public function checkPermission($mapper, $id, $permission) { |
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try { |
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if ($mapper instanceof IPermissionMapper) { |
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$boardId = $mapper->findBoardId($id); |
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} else { |
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$boardId = $id; |
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} |
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if ($boardId === null) { |
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// Throw NoPermission to not leak information about existing entries |
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throw new NoPermissionException('Permission denied'); |
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} |
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if ($this->userIsBoardOwner($boardId)) { |
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return true; |
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} |
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$acls = $this->aclMapper->findAll($boardId); |
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$result = $this->userCan($acls, $permission); |
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if ($result) { |
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return true; |
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} |
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} catch (DoesNotExistException $exception) { |
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// Throw NoPermission to not leak information about existing entries |
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throw new NoPermissionException('Permission denied'); |
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} |
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throw new NoPermissionException('Permission denied.'); |
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} |
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/** |
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* @param $boardId |
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* @return bool |
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*/ |
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public function userIsBoardOwner($boardId) { |
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$board = $this->boardMapper->find($boardId); |
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if ($board && $this->userId === $board->getOwner()) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Check if permission matches the acl rules for current user and groups |
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* |
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* @param Acl[] $acls |
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* @param $permission |
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* @return bool |
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*/ |
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public function userCan(array $acls, $permission) { |
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// check for users |
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foreach ($acls as $acl) { |
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if ($acl->getType() === Acl::PERMISSION_TYPE_USER && $acl->getParticipant() === $this->userId) { |
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return $acl->getPermission($permission); |
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} |
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} |
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// check for groups |
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$hasGroupPermission = false; |
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foreach ($acls as $acl) { |
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if (!$hasGroupPermission && $acl->getType() === Acl::PERMISSION_TYPE_GROUP && $this->groupManager->isInGroup($this->userId, $acl->getParticipant())) { |
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$hasGroupPermission = $acl->getPermission($permission); |
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} |
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} |
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return $hasGroupPermission; |
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} |
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} |
juliushaertl /
deck
Loading history...
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: