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| 1 | <?php |
| 2 | /** |
| 3 | * WikiLambda ZObject Authorization Filter: Is Connected Converter |
| 4 | * |
| 5 | * @file |
| 6 | * @ingroup Extensions |
| 7 | * @copyright 2020– Abstract Wikipedia team; see AUTHORS.txt |
| 8 | * @license MIT |
| 9 | */ |
| 10 | |
| 11 | namespace MediaWiki\Extension\WikiLambda\Authorization; |
| 12 | |
| 13 | use MediaWiki\Extension\WikiLambda\Registry\ZTypeRegistry; |
| 14 | use MediaWiki\Extension\WikiLambda\WikiLambdaServices; |
| 15 | use MediaWiki\Extension\WikiLambda\ZObjectContent; |
| 16 | use MediaWiki\Title\Title; |
| 17 | |
| 18 | class ZObjectFilterIsConnectedConverter implements ZObjectFilter { |
| 19 | |
| 20 | /** |
| 21 | * ZObject filter that checks whether the edited converter (serialiser or deserialiser) |
| 22 | * is already connected to a type. |
| 23 | * |
| 24 | * @param ZObjectContent $fromContent |
| 25 | * @param ZObjectContent $toContent |
| 26 | * @param Title $title |
| 27 | * @param array $args |
| 28 | * @return bool |
| 29 | */ |
| 30 | public static function pass( $fromContent, $toContent, $title, $args = [] ): bool { |
| 31 | $typeId = ''; |
| 32 | $arrayKey = ''; |
| 33 | |
| 34 | $type = $fromContent->getZType(); |
| 35 | switch ( $type ) { |
| 36 | // For Deserialisers: |
| 37 | // * get deserialiser ZID from $title |
| 38 | // * get type ZID from Z_DESERIALISER_TYPE |
| 39 | // * retrieve type from DB |
| 40 | // * check that the type has this ZID in Z_TYPE_DESERIALISERS |
| 41 | case ZTypeRegistry::Z_DESERIALISER: |
| 42 | $typeId = $fromContent |
| 43 | ->getInnerZObject() |
| 44 | ->getValueByKey( ZTypeRegistry::Z_DESERIALISER_TYPE ) |
| 45 | ->getZValue(); |
| 46 | $arrayKey = ZTypeRegistry::Z_TYPE_DESERIALISERS; |
| 47 | break; |
| 48 | |
| 49 | // For Serialisers: |
| 50 | // * get serialiser ZID from $title |
| 51 | // * get type ZID from Z_SERIALISER_TYPE |
| 52 | // * retrieve type from DB |
| 53 | // * check that the type has this ZID in Z_TYPE_SERIALISERS |
| 54 | case ZTypeRegistry::Z_SERIALISER: |
| 55 | $typeId = $fromContent |
| 56 | ->getInnerZObject() |
| 57 | ->getValueByKey( ZTypeRegistry::Z_SERIALISER_TYPE ) |
| 58 | ->getZValue(); |
| 59 | $arrayKey = ZTypeRegistry::Z_TYPE_SERIALISERS; |
| 60 | break; |
| 61 | |
| 62 | default: |
| 63 | return false; |
| 64 | } |
| 65 | |
| 66 | $typeTitle = Title::newFromText( $typeId, NS_MAIN ); |
| 67 | $zObjectStore = WikiLambdaServices::getZObjectStore(); |
| 68 | $typeObject = $zObjectStore->fetchZObjectByTitle( $typeTitle ); |
| 69 | |
| 70 | if ( $typeObject === false ) { |
| 71 | // Type object not found; return false |
| 72 | return false; |
| 73 | } |
| 74 | if ( $typeObject->getZType() !== ZTypeRegistry::Z_TYPE ) { |
| 75 | // Object of wrong type; return false |
| 76 | return false; |
| 77 | } |
| 78 | $array = $typeObject->getInnerZObject()->getValueByKey( $arrayKey )->getSerialized(); |
| 79 | return in_array( $title->getText(), $array ); |
| 80 | } |
| 81 | } |