PortableInfobox/services/PortableInfoboxErrorRenderService.class.php

<?php

class PortableInfoboxErrorRenderService extends WikiaService {

	const XML_DEBUG_TEMPLATE = 'PortableInfoboxMarkupDebug.mustache';
	const XML_ERR_GENERAL = 'xml-parse-error';

	private $errorList = [];
	private $supportedErrors = [
		5 => 'XML_ERR_DOCUMENT_END',
		26 => 'XML_ERR_UNDECLARED_ENTITY',
		39 => 'XML_ERR_ATTRIBUTE_NOT_STARTED',
		41 => 'XML_ERR_ATTRIBUTE_WITHOUT_VALUE',
		65 => 'XML_ERR_SPACE_REQUIRED',
		68 => 'XML_ERR_NAME_REQUIRED',
		73 => 'XML_ERR_GT_REQUIRED',
		76 => 'XML_ERR_TAG_NAME_MISMATCH',
		77 => 'XML_ERR_TAG_NOT_FINISHED'
	];

	/* @var $templateEngine Wikia\Template\MustacheEngine */
	private $templateEngine;

	function __construct( $errorList ) {
		$this->templateEngine = ( new Wikia\Template\MustacheEngine )
			->setPrefix( dirname( __FILE__ ) . '/../templates' );
		$this->errorList = $errorList;
	}

	public function renderMarkupDebugView( $sourceCode ) {
		if ( count( $this->errorList ) ) {
			$errorsByLine = [];
			foreach ( $this->errorList as $error ) {
				$errorsByLine[ $error->line - 1 ][ $error->code ] = $error;
			}

			$sourceCodeByLines = explode( "\n", ( $sourceCode ) );

			$templateData = [];
			$templateData['code'] = [];
			foreach ( $sourceCodeByLines as $i => $codeLine ) {
				$line = [
					'line' => $i,
					'codeLine' => $codeLine,
					'error' => false,
				];
				if ( isset( $errorsByLine[ $i ] ) ) {
					$line['error'] = true;
					foreach ( $errorsByLine[ $i ] as $error ) {
						$line['error_messages'][] = [ 'message' => $this->getErrorMessage( $error ) ];
					}
				}
				$templateData['code'][] = $line;
			}
			$templateData['info'] = wfMessage( 'xml-parse-error-info' )->escaped();

			return $this->templateEngine->clearData()->setData( $templateData )->render( self::XML_DEBUG_TEMPLATE );

		}
		return false;
	}

	public function renderArticleMsgView() {
		return wfMessage( 'xml-parse-error-info' )->escaped();
	}

	public function getErrorMessage( libXMLError $error ) {
		if ( isset( $this->supportedErrors[ $error->code ] ) ) {
			$key = $this->supportedErrors[ $error->code ];
		} else {
			$key = self::XML_ERR_GENERAL;
		}
		return wfMessage( strtolower( $key ) )->escaped();
	}

}