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| 1 | <?php |
| 2 | |
| 3 | namespace SecurityCheckPlugin; |
| 4 | |
| 5 | use Phan\CodeBase; |
| 6 | use Phan\Config; |
| 7 | use Phan\Language\FQSEN\FullyQualifiedClassName; |
| 8 | use Phan\Language\FQSEN\FullyQualifiedFunctionLikeName; |
| 9 | use Phan\Language\FQSEN\FullyQualifiedFunctionName; |
| 10 | use Phan\Language\FQSEN\FullyQualifiedMethodName; |
| 11 | |
| 12 | /** |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License along |
| 24 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 25 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 26 | */ |
| 27 | |
| 28 | class MediaWikiHooksHelper { |
| 29 | /** |
| 30 | * @var bool Whether extension.json/skin.json was already loaded |
| 31 | */ |
| 32 | private $extensionJsonLoaded = false; |
| 33 | |
| 34 | /** |
| 35 | * @var FullyQualifiedFunctionLikeName[][] A mapping from hook names to FQSEN that implement it |
| 36 | * @phan-var array<string,FullyQualifiedFunctionLikeName[]> |
| 37 | */ |
| 38 | private $hookSubscribers = []; |
| 39 | |
| 40 | private ?FullyQualifiedClassName $parserFQSEN = null; |
| 41 | private ?FullyQualifiedClassName $ppFrameFQSEN = null; |
| 42 | |
| 43 | /** @var self|null */ |
| 44 | private static $instance; |
| 45 | |
| 46 | /** |
| 47 | * @return self |
| 48 | */ |
| 49 | public static function getInstance(): self { |
| 50 | if ( !self::$instance ) { |
| 51 | self::$instance = new self; |
| 52 | } |
| 53 | return self::$instance; |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Clear the extension.json cache, for testing purpose |
| 58 | * |
| 59 | * @suppress PhanUnreferencedPublicMethod |
| 60 | */ |
| 61 | public function clearCache(): void { |
| 62 | $this->extensionJsonLoaded = false; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Add a hook implementation to our list. |
| 67 | * |
| 68 | * This also handles parser hooks which aren't normal hooks. |
| 69 | * Non-normal hooks start their name with a "!" |
| 70 | * |
| 71 | * @param string $hookName Name of hook |
| 72 | * @param FullyQualifiedFunctionLikeName $fqsen The implementing method |
| 73 | * @return bool true if already registered, false otherwise |
| 74 | */ |
| 75 | public function registerHook( string $hookName, FullyQualifiedFunctionLikeName $fqsen ): bool { |
| 76 | if ( !isset( $this->hookSubscribers[$hookName] ) ) { |
| 77 | $this->hookSubscribers[$hookName] = []; |
| 78 | } |
| 79 | if ( in_array( $fqsen, $this->hookSubscribers[$hookName], true ) ) { |
| 80 | return true; |
| 81 | } |
| 82 | $this->hookSubscribers[$hookName][] = $fqsen; |
| 83 | return false; |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Register hooks from extension.json/skin.json |
| 88 | * |
| 89 | * Assumes extension.json/skin.json is in project root directory |
| 90 | * unless SECURITY_CHECK_EXT_PATH is set |
| 91 | */ |
| 92 | protected function loadExtensionJson(): void { |
| 93 | if ( $this->extensionJsonLoaded ) { |
| 94 | return; |
| 95 | } |
| 96 | foreach ( [ 'extension.json', 'skin.json' ] as $filename ) { |
| 97 | $envPath = getenv( 'SECURITY_CHECK_EXT_PATH' ); |
| 98 | if ( $envPath ) { |
| 99 | $jsonPath = $envPath . '/' . $filename; |
| 100 | } else { |
| 101 | $jsonPath = Config::projectPath( $filename ); |
| 102 | } |
| 103 | if ( file_exists( $jsonPath ) ) { |
| 104 | $this->readJsonFile( $jsonPath ); |
| 105 | } |
| 106 | } |