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<?php |
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/** |
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* AccessHandler.php |
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* |
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* The AccessHandler class file. |
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* |
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* PHP versions 5 |
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* |
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* @author Alexander Schneider <alexanderschneider85@gmail.com> |
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* @copyright 2008-2017 Alexander Schneider |
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* @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 |
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* @version SVN: $id$ |
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* @link http://wordpress.org/extend/plugins/user-access-manager/ |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace UserAccessManager\Access; |
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|
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use Exception; |
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use UserAccessManager\Config\MainConfig; |
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use UserAccessManager\Database\Database; |
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use UserAccessManager\Object\ObjectHandler; |
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use UserAccessManager\User\UserHandler; |
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use UserAccessManager\UserGroup\AbstractUserGroup; |
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use UserAccessManager\UserGroup\UserGroupHandler; |
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use UserAccessManager\UserGroup\UserGroupTypeException; |
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use UserAccessManager\Wrapper\Wordpress; |
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|
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/** |
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* Class AccessHandler |
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* @package UserAccessManager\AccessHandler |
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*/ |
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class AccessHandler |
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{ |
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/** |
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* @var Wordpress |
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*/ |
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private $wordpress; |
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|
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/** |
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* @var MainConfig |
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*/ |
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private $mainConfig; |
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|
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/** |
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* @var Database |
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*/ |
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private $database; |
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|
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/** |
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* @var ObjectHandler |
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*/ |
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private $objectHandler; |
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|
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/** |
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* @var UserHandler |
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*/ |
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private $userHandler; |
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|
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/** |
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* @var UserGroupHandler |
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*/ |
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private $userGroupHandler; |
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|
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/** |
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* @var null|array |
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*/ |
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private $excludedTerms = null; |
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|
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/** |
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* @var null|array |
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*/ |
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private $excludedPosts = null; |
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|
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/** |
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* @var array |
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*/ |
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private $objectAccess = []; |
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|
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/** |
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* @var null|array |
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*/ |
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private $noneHiddenPostTypes = null; |
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|
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/** |
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* AccessHandler constructor. |
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* @param Wordpress $wordpress |
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* @param MainConfig $mainConfig |
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* @param Database $database |
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* @param ObjectHandler $objectHandler |
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* @param UserHandler $userHandler |
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* @param UserGroupHandler $userGroupHandler |
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*/ |
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public function __construct( |
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Wordpress $wordpress, |
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MainConfig $mainConfig, |
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Database $database, |
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ObjectHandler $objectHandler, |
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UserHandler $userHandler, |
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UserGroupHandler $userGroupHandler |
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) { |
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$this->wordpress = $wordpress; |
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$this->mainConfig = $mainConfig; |
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$this->database = $database; |
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$this->objectHandler = $objectHandler; |
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$this->userHandler = $userHandler; |
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$this->userGroupHandler = $userGroupHandler; |
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} |
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|
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/** |
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* Checks it the user has access because he is the author. |
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* @param string $objectType |
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* @param int|string $objectId |
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* @return bool |
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*/ |
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private function hasAuthorAccess(string $objectType, $objectId): bool |
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{ |
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if ($this->mainConfig->authorsHasAccessToOwn() === true |
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&& $this->objectHandler->isPostType($objectType) |
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) { |
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$post = $this->objectHandler->getPost($objectId); |
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return $post !== false |
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&& $this->wordpress->getCurrentUser()->ID === (int) $post->post_author; |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Checks if the is admin value is set if not grabs it from the wordpress function. |
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* @param null|bool $isAdmin |
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* @return bool |
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*/ |
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private function isAdmin(?bool $isAdmin): bool |
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{ |
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return ($isAdmin === null) ? $this->wordpress->isAdmin() : $isAdmin; |
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} |
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|
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/** |
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* Returns the user user groups filtered by the write access. |
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* @param bool|null $isAdmin If set we force the admin mode. |
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* @return AbstractUserGroup[] |
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* @throws UserGroupTypeException |
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*/ |
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private function getUserUserGroupsForObjectAccess(?bool $isAdmin = null): array |
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{ |
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$userUserGroups = $this->userGroupHandler->getUserGroupsForUser(); |
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|
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if ($this->isAdmin($isAdmin) === true) { |
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$userUserGroups = array_filter( |
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$userUserGroups, |
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function (AbstractUserGroup $userGroup) { |
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return $userGroup->getWriteAccess() !== 'none'; |
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} |
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); |
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} |
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|
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return $this->wordpress->applyFilters('uam_get_user_user_groups_for_object_access', $userUserGroups, $isAdmin); |
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} |
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|
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/** |
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* Checks if the current_user has access to the given post. |
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* @param string|null $objectType The object type which should be checked. |
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* @param int|string $objectId The id of the object. |
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* @param null|bool $isAdmin If set we force the admin mode. |
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* @return bool |
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* @throws UserGroupTypeException |
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* @throws Exception |
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*/ |
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public function checkObjectAccess(?string $objectType, $objectId, ?bool $isAdmin = null): bool |
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{ |
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$isAdmin = $this->isAdmin($isAdmin); |
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|
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if (isset($this->objectAccess[$isAdmin][$objectType][$objectId]) === false) { |
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if ($this->objectHandler->isValidObjectType($objectType) === false |
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|| $this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY) === true |
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|| $this->hasAuthorAccess($objectType, $objectId) === true |
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) { |
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$access = true; |
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} else { |
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$membership = $this->userGroupHandler->getUserGroupsForObject($objectType, $objectId); |
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$access = $membership === [] |
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|| array_intersect_key($membership, $this->getUserUserGroupsForObjectAccess($isAdmin)) !== []; |
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|
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if ($access && $this->wordpress->isUserLoggedIn() && $this->wordpress->isMultiSite()) { |
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$access = $this->wordpress->isUserMemberOfBlog(); |
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} |
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} |
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|
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$this->objectAccess[$isAdmin][$objectType][$objectId] = $access; |
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} |
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|
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return $this->objectAccess[$isAdmin][$objectType][$objectId]; |
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} |
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|
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/** |
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* Returns the excluded objects. |
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* @param string $type |
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* @param array $filterTypesMap |
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* @return array |
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* @throws UserGroupTypeException |
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* @throws Exception |
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*/ |
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private function getExcludedObjects(string $type, array $filterTypesMap = []): array |
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{ |
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$excludedObjects = []; |
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$userGroups = $this->userGroupHandler->getFullUserGroups(); |
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|
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foreach ($userGroups as $userGroup) { |
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$excludedObjects += $userGroup->getAssignedObjectsByType($type); |
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} |
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|
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$userUserGroups = $this->userGroupHandler->getUserGroupsForUser(); |
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|
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foreach ($userUserGroups as $userGroup) { |
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$excludedObjects = array_diff_key($excludedObjects, $userGroup->getAssignedObjectsByType($type)); |
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} |
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|
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if ($filterTypesMap !== []) { |
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$excludedObjects = array_filter( |
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$excludedObjects, |
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function ($element) use ($filterTypesMap) { |
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return isset($filterTypesMap[$element]) === false; |
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} |
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); |
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} |
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|
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$objectIds = array_keys($excludedObjects); |
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return array_combine($objectIds, $objectIds); |
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} |
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|
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/** |
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* Returns the excluded terms for a user. |
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* @return array |
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* @throws UserGroupTypeException |
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*/ |
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public function getExcludedTerms(): ?array |
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{ |
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if ($this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY)) { |
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$this->excludedTerms = []; |
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} |
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|
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if ($this->excludedTerms === null) { |
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$this->excludedTerms = $this->getExcludedObjects(ObjectHandler::GENERAL_TERM_OBJECT_TYPE); |
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} |
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|
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return $this->excludedTerms; |
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} |
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|
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/** |
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* Returns the none hidden post types map. |
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* @return array |
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*/ |
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private function getNoneHiddenPostTypes(): ?array |
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{ |
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if ($this->noneHiddenPostTypes === null) { |
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$this->noneHiddenPostTypes = []; |
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|
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if ($this->wordpress->isAdmin() === false) { |
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$postTypes = $this->objectHandler->getPostTypes(); |
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|
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foreach ($postTypes as $postType) { |
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if ($this->mainConfig->hidePostType($postType) === false) { |
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$this->noneHiddenPostTypes[$postType] = $postType; |
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} |
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} |
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} |
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} |
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|
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return $this->noneHiddenPostTypes; |
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} |
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|
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/** |
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* Returns the excluded posts. |
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* @return array |
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* @throws UserGroupTypeException |
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*/ |
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public function getExcludedPosts(): ?array |
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{ |
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if ($this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY)) { |
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$this->excludedPosts = []; |
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} |
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|
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if ($this->excludedPosts === null) { |
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$noneHiddenPostTypes = $this->getNoneHiddenPostTypes(); |
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$excludedPosts = $this->getExcludedObjects(ObjectHandler::GENERAL_POST_OBJECT_TYPE, $noneHiddenPostTypes); |
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|
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if ($this->mainConfig->authorsHasAccessToOwn() === true) { |
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$query = $this->database->prepare( |
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"SELECT ID FROM {$this->database->getPostsTable()} |
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WHERE post_author = %d", |
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$this->wordpress->getCurrentUser()->ID |
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); |
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|
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$ownPosts = array_filter( |
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(array) $this->database->getResults($query), |
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function ($ownPost) { |
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return isset($ownPost->ID); |
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} |
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); |
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$ownPostIds = []; |
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|
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foreach ($ownPosts as $ownPost) { |
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$ownPostIds[$ownPost->ID] = $ownPost->ID; |
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} |
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|
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$excludedPosts = array_diff_key($excludedPosts, $ownPostIds); |
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} |
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|
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$this->excludedPosts = $excludedPosts; |
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} |
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|
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return $this->excludedPosts; |
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} |
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} |
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|
