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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | namespace MediaWiki\EditPage\Constraint; |
| 22 | |
| 23 | use MediaWiki\Permissions\Authority; |
| 24 | use MediaWiki\Permissions\PermissionStatus; |
| 25 | use MediaWiki\Title\Title; |
| 26 | use StatusValue; |
| 27 | |
| 28 | /** |
| 29 | * Verify user permissions if changing content model: |
| 30 | * Must have editcontentmodel rights |
| 31 | * Must be able to edit under the new content model |
| 32 | * Must not have exceeded the rate limit |
| 33 | * |
| 34 | * @since 1.36 |
| 35 | * @internal |
| 36 | * @author DannyS712 |
| 37 | */ |
| 38 | class ContentModelChangeConstraint implements IEditConstraint { |
| 39 | |
| 40 | private PermissionStatus $status; |
| 41 | |
| 42 | private Authority $performer; |
| 43 | private Title $title; |
| 44 | private string $newContentModel; |
| 45 | |
| 46 | /** |
| 47 | * @param Authority $performer |
| 48 | * @param Title $title |
| 49 | * @param string $newContentModel |
| 50 | */ |
| 51 | public function __construct( |
| 52 | Authority $performer, |
| 53 | Title $title, |
| 54 | string $newContentModel |
| 55 | ) { |
| 56 | $this->performer = $performer; |
| 57 | $this->title = $title; |
| 58 | $this->newContentModel = $newContentModel; |
| 59 | } |
| 60 | |
| 61 | public function checkConstraint(): string { |
| 62 | $this->status = PermissionStatus::newEmpty(); |
| 63 | |
| 64 | if ( $this->newContentModel === $this->title->getContentModel() ) { |
| 65 | // No change |
| 66 | return self::CONSTRAINT_PASSED; |
| 67 | } |
| 68 | |
| 69 | if ( !$this->performer->authorizeWrite( 'editcontentmodel', $this->title, $this->status ) ) { |
| 70 | return self::CONSTRAINT_FAILED; |
| 71 | } |
| 72 | |
| 73 | // Make sure the user can edit the page under the new content model too. |
| 74 | // We rely on caching in UserAuthority to avoid bumping the rate limit counter twice. |
| 75 | $titleWithNewContentModel = clone $this->title; |
| 76 | $titleWithNewContentModel->setContentModel( $this->newContentModel ); |
| 77 | if ( |
| 78 | !$this->performer->authorizeWrite( 'editcontentmodel', $titleWithNewContentModel, $this->status ) |
| 79 | || !$this->performer->authorizeWrite( 'edit', $titleWithNewContentModel, $this->status ) |
| 80 | ) { |
| 81 | return self::CONSTRAINT_FAILED; |
| 82 | } |
| 83 | |
| 84 | return self::CONSTRAINT_PASSED; |
| 85 | } |
| 86 | |
| 87 | public function getLegacyStatus(): StatusValue { |
| 88 | $statusValue = StatusValue::newGood(); |
| 89 | |
| 90 | if ( !$this->status->isGood() ) { |
| 91 | if ( $this->status->isRateLimitExceeded() ) { |
| 92 | $statusValue->setResult( false, self::AS_RATE_LIMITED ); |
| 93 | } else { |
| 94 | $statusValue->setResult( false, self::AS_NO_CHANGE_CONTENT_MODEL ); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | // TODO: Use error messages from the PermissionStatus ($this->status) here - T384399 |
| 99 | return $statusValue; |
| 100 | } |
| 101 | |
| 102 | } |