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| 1 | <?php |
| 2 | |
| 3 | namespace AutoModerator\Config\Validation; |
| 4 | |
| 5 | use InvalidArgumentException; |
| 6 | use MediaWiki\Linker\LinkTarget; |
| 7 | use MediaWiki\Title\Title; |
| 8 | use MediaWiki\Title\TitleFactory; |
| 9 | |
| 10 | class ConfigValidatorFactory { |
| 11 | private TitleFactory $titleFactory; |
| 12 | |
| 13 | /** |
| 14 | * @var string[] |
| 15 | * |
| 16 | * Maps variable to validator class. |
| 17 | * |
| 18 | * @note When adding a mapping, add an entry to ConfigValidatorFactory::constructValidator |
| 19 | * as well. |
| 20 | */ |
| 21 | private const CONFIG_VALIDATOR_MAP = [ |
| 22 | 'AutoModeratorConfig.json' => AutoModeratorConfigValidation::class, |
| 23 | 'AutoModeratorMultilingualConfig.json' => AutoModeratorConfigValidation::class |
| 24 | ]; |
| 25 | |
| 26 | /** |
| 27 | * @param TitleFactory $titleFactory |
| 28 | */ |
| 29 | public function __construct( |
| 30 | TitleFactory $titleFactory |
| 31 | ) { |
| 32 | $this->titleFactory = $titleFactory; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Code helper for comparing titles |
| 37 | * |
| 38 | * @param Title $configTitle |
| 39 | * @param string $otherConfigPage |
| 40 | * @return bool |
| 41 | */ |
| 42 | private function titleEquals( Title $configTitle, string $otherConfigPage ): bool { |
| 43 | $varTitle = $this->titleFactory |
| 44 | ->makeTitleSafe( NS_MEDIAWIKI, $otherConfigPage ); |
| 45 | return $varTitle !== null && $configTitle->equals( $varTitle ); |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Return list of supported config pages |
| 50 | * |
| 51 | * @return Title[] |
| 52 | */ |
| 53 | public function getSupportedConfigPages(): array { |
| 54 | return array_filter( |
| 55 | array_map( |
| 56 | function ( string $var ) { |
| 57 | return $this->titleFactory->makeTitleSafe( |
| 58 | NS_MEDIAWIKI, |
| 59 | $var |
| 60 | ); |
| 61 | }, |
| 62 | array_keys( self::CONFIG_VALIDATOR_MAP ) |
| 63 | ) |
| 64 | ); |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * Construct given validator |
| 69 | * |
| 70 | * @param string $class A ::class constant from one of the validators |
| 71 | * @return IConfigValidator |
| 72 | * @throws InvalidArgumentException when passed class is not supported; this should never |
| 73 | * happen in practice. |
| 74 | */ |
| 75 | private function constructValidator( string $class ): IConfigValidator { |
| 76 | switch ( $class ) { |
| 77 | case AutoModeratorConfigValidation::class: |
| 78 | return new AutoModeratorConfigValidation(); |
| 79 | case NoValidationValidator::class: |
| 80 | return new NoValidationValidator(); |
| 81 | default: |
| 82 | throw new InvalidArgumentException( 'Unsupported config class' ); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Generate a validator for a config page |
| 88 | * |
| 89 | * @param LinkTarget $configPage |
| 90 | * @return IConfigValidator |
| 91 | * @throws InvalidArgumentException when passed config page is not recognized; this should |
| 92 | * never happen in practice. |
| 93 | */ |
| 94 | public function newConfigValidator( LinkTarget $configPage ): IConfigValidator { |
| 95 | $title = $this->titleFactory->newFromLinkTarget( $configPage ); |
| 96 | |
| 97 | foreach ( self::CONFIG_VALIDATOR_MAP as $var => $validatorClass ) { |
| 98 | if ( $this->titleEquals( $title, $var ) ) { |
| 99 | return $this->constructValidator( $validatorClass ); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | throw new InvalidArgumentException( 'Unsupported config page' ); |
| 104 | } |
| 105 | } |