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| 1 | <?php |
| 2 | |
| 3 | namespace Wikibase\MediaInfo; |
| 4 | |
| 5 | use FileContentsHasher; |
| 6 | use LightnCandy\LightnCandy; |
| 7 | use MediaWiki\Html\TemplateParser; |
| 8 | use RuntimeException; |
| 9 | |
| 10 | /** |
| 11 | * A simple core Mustache TemplateParser override to allow it to |
| 12 | * compile files with `.mustache+dom` extension, as might be used |
| 13 | * on the frontend for more advanced DOM-based rendering. |
| 14 | */ |
| 15 | class MustacheDomTemplateParser extends TemplateParser { |
| 16 | |
| 17 | /** |
| 18 | * @inheritDoc |
| 19 | */ |
| 20 | protected function getTemplateFilename( $templateName ) { |
| 21 | // perform parent's validity checks... |
| 22 | parent::getTemplateFilename( $templateName ); |
| 23 | |
| 24 | // but use a different filename |
| 25 | return "{$this->templateDir}/{$templateName}.mustache+dom"; |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * @suppress PhanTypeMismatchArgument |
| 30 | * @inheritDoc |
| 31 | */ |
| 32 | protected function compile( $templateName ) { |
| 33 | $filename = $this->getTemplateFilename( $templateName ); |
| 34 | |
| 35 | if ( !file_exists( $filename ) ) { |
| 36 | throw new RuntimeException( "Could not find template `{$templateName}` at {$filename}" ); |
| 37 | } |
| 38 | |
| 39 | $files = [ $filename ]; |
| 40 | $contents = file_get_contents( $filename ); |
| 41 | $compiled = LightnCandy::compile( |
| 42 | $contents, |
| 43 | [ |
| 44 | 'flags' => $this->compileFlags, |
| 45 | 'basedir' => $this->templateDir, |
| 46 | 'fileext' => '.mustache+dom', |
| 47 | 'partialresolver' => function ( $cx, $partialName ) use ( $templateName, &$files ) { |
| 48 | $filename = "{$this->templateDir}/{$partialName}.mustache+dom"; |
| 49 | if ( !file_exists( $filename ) ) { |
| 50 | throw new RuntimeException( sprintf( |
| 51 | 'Could not compile template `%s`: Could not find partial `%s` at %s', |
| 52 | $templateName, |
| 53 | $partialName, |
| 54 | $filename |
| 55 | ) ); |
| 56 | } |
| 57 | |
| 58 | $fileContents = file_get_contents( $filename ); |
| 59 | |
| 60 | if ( $fileContents === false ) { |
| 61 | throw new RuntimeException( sprintf( |
| 62 | 'Could not compile template `%s`: Could not find partial `%s` at %s', |
| 63 | $templateName, |
| 64 | $partialName, |
| 65 | $filename |
| 66 | ) ); |
| 67 | } |
| 68 | |
| 69 | $files[] = $filename; |
| 70 | |
| 71 | return $fileContents; |
| 72 | } |
| 73 | ] |
| 74 | ); |
| 75 | if ( !$compiled ) { |
| 76 | // This shouldn't happen because LightnCandy::FLAG_ERROR_EXCEPTION is set |
| 77 | // Errors should throw exceptions instead of returning false |
| 78 | // Check anyway for paranoia |
| 79 | throw new RuntimeException( "Could not compile template `{$filename}`" ); |
| 80 | } |
| 81 | |
| 82 | return [ |
| 83 | 'phpCode' => $compiled, |
| 84 | 'files' => $files, |
| 85 | 'filesHash' => FileContentsHasher::getFileContentsHash( $files ), |
| 86 | ]; |
| 87 | } |
| 88 | |
| 89 | } |