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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2014 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT); |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | namespace oat\generis\model\data\permission\implementation; |
| 23 | |
| 24 | use oat\generis\model\data\permission\PermissionInterface; |
| 25 | use oat\oatbox\service\ConfigurableService; |
| 26 | use oat\oatbox\user\User; |
| 27 | |
| 28 | /** |
| 29 | * Simple permissible Permission model |
| 30 | * |
| 31 | * does not require privileges |
| 32 | * does not grant privileges |
| 33 | * |
| 34 | * @access public |
| 35 | * @author Joel Bout, <joel@taotesting.com> |
| 36 | */ |
| 37 | class Intersection extends ConfigurableService implements PermissionInterface |
| 38 | { |
| 39 | /** |
| 40 | * |
| 41 | * @param PermissionInterface[] $persmissionMdels |
| 42 | */ |
| 43 | public static function spawn($persmissionMdels) |
| 44 | { |
| 45 | return new self(['inner' => $persmissionMdels]); |
| 46 | } |
| 47 | |
| 48 | public function __construct($options = []) |
| 49 | { |
| 50 | parent::__construct($options); |
| 51 | } |
| 52 | |
| 53 | protected function getInner() |
| 54 | { |
| 55 | return $this->getOption('inner'); |
| 56 | } |
| 57 | |
| 58 | |
| 59 | /** |
| 60 | * (non-PHPdoc) |
| 61 | * @see PermissionInterface::getPermissions() |
| 62 | */ |
| 63 | public function getPermissions(User $user, array $resourceIds) |
| 64 | { |
| 65 | |
| 66 | $results = []; |
| 67 | foreach ($this->getInner() as $impl) { |
| 68 | $results[] = $impl->getPermissions($user, $resourceIds); |
| 69 | } |
| 70 | |
| 71 | $rights = []; |
| 72 | foreach ($resourceIds as $id) { |
| 73 | $intersect = null; |
| 74 | foreach ($results as $modelResult) { |
| 75 | $intersect = is_null($intersect) |
| 76 | ? $modelResult[$id] |
| 77 | : array_intersect($intersect, $modelResult[$id]); |
| 78 | } |
| 79 | $rights[$id] = array_values($intersect); |
| 80 | } |
| 81 | |
| 82 | return $rights; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * (non-PHPdoc) |
| 87 | * @see PermissionInterface::onResourceCreated() |
| 88 | */ |
| 89 | public function onResourceCreated(\core_kernel_classes_Resource $resource) |
| 90 | { |
| 91 | foreach ($this->getInner() as $impl) { |
| 92 | $impl->onResourceCreated($resource); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * (non-PHPdoc) |
| 98 | * @see PermissionInterface::getSupportedPermissions() |
| 99 | */ |
| 100 | public function getSupportedRights() |
| 101 | { |
| 102 | $models = $this->getInner(); |
| 103 | $first = array_pop($models); |
| 104 | $supported = $first->getSupportedRights(); |
| 105 | |
| 106 | while (!empty($models)) { |
| 107 | $model = array_pop($models); |
| 108 | $supported = array_intersect($supported, $model->getSupportedRights()); |
| 109 | } |
| 110 | |
| 111 | return array_values($supported); |
| 112 | } |
| 113 | } |