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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Settings\Source; |
| 4 | |
| 5 | use MediaWiki\Settings\SettingsBuilderException; |
| 6 | use Wikimedia\AtEase\AtEase; |
| 7 | |
| 8 | /** |
| 9 | * Settings loaded from a PHP file path as an array structure. |
| 10 | * |
| 11 | * @since 1.38 |
| 12 | */ |
| 13 | class PhpSettingsSource implements SettingsSource, SettingsIncludeLocator { |
| 14 | /** |
| 15 | * Path to the PHP file. |
| 16 | * @var string |
| 17 | */ |
| 18 | private $path; |
| 19 | |
| 20 | /** |
| 21 | * @param string $path |
| 22 | */ |
| 23 | public function __construct( string $path ) { |
| 24 | $this->path = $path; |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * Loads an array structure from a PHP file and return |
| 29 | * for using with merge strategies to apply on configs. |
| 30 | * |
| 31 | * @throws SettingsBuilderException |
| 32 | * @return array |
| 33 | */ |
| 34 | public function load(): array { |
| 35 | // NOTE: try include first, for performance reasons. If all goes well, it will |
| 36 | // use the opcode cache, and will not touch the file system at all. |
| 37 | // So we should only go and look at the file system if the include fails. |
| 38 | |
| 39 | $source = AtEase::quietCall( static function ( $path ) { |
| 40 | return include $path; |
| 41 | }, $this->path ); |
| 42 | |
| 43 | if ( $source === false ) { |
| 44 | if ( !file_exists( $this->path ) ) { |
| 45 | throw new SettingsBuilderException( |
| 46 | "'File: {path}' does not exist", |
| 47 | [ 'path' => $this->path ] |
| 48 | ); |
| 49 | } |
| 50 | |
| 51 | if ( !is_readable( $this->path ) ) { |
| 52 | throw new SettingsBuilderException( |
| 53 | "File '{path}' is not readable", |
| 54 | [ 'path' => $this->path ] |
| 55 | ); |
| 56 | } |
| 57 | |
| 58 | if ( is_dir( $this->path ) ) { |
| 59 | throw new SettingsBuilderException( |
| 60 | "'{path}' is a directory, not a file", |
| 61 | [ 'path' => $this->path ] |
| 62 | ); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | if ( !is_array( $source ) ) { |
| 67 | throw new SettingsBuilderException( |
| 68 | "File '{path}' did not return an array", |
| 69 | [ 'path' => $this->path ] |
| 70 | ); |
| 71 | } |
| 72 | |
| 73 | return $source; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Returns this file source as a string. |
| 78 | * |
| 79 | * @return string |
| 80 | */ |
| 81 | public function __toString(): string { |
| 82 | return $this->path; |
| 83 | } |
| 84 | |
| 85 | public function locateInclude( string $location ): string { |
| 86 | return SettingsFileUtils::resolveRelativeLocation( $location, dirname( $this->path ) ); |
| 87 | } |
| 88 | |
| 89 | } |