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<?php |
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namespace GitHub; |
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use FileFetcher\FileFetcher; |
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use FileFetcher\FileFetchingException; |
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use Michelf\Markdown; |
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use ParamProcessor\ProcessingResult; |
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use Parser; |
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use ParserHooks\HookHandler; |
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/** |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class GitHubParserHook implements HookHandler { |
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private $gitHubFetcher; |
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/** |
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* @var Parser |
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*/ |
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private $parser; |
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// Parameters for SyntaxHighlight extension (formerly SyntaxHighlight_GeSHi) |
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// https://www.mediawiki.org/wiki/Extension:SyntaxHighlight |
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private $syntaxHighlightLanguage; |
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private $syntaxHighlightEnableLineNumbers; |
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private $syntaxHighlightStartingLineNumber; |
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private $syntaxHighlightHighlightedLines; |
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private $syntaxHighlightInlineSource; |
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public function __construct( GitHubFetcher $gitHubFetcher ) { |
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$this->gitHubFetcher = $gitHubFetcher; |
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} |
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public function handle( Parser $parser, ProcessingResult $result ): string { |
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$this->parser = $parser; |
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$params = $result->getParameters(); |
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$this->setFields( $params ); |
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$content = $this->gitHubFetcher->getFileContent( |
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$params['repo']->getValue(), |
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$params['branch']->getValue(), |
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$params['file']->getValue() |
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); |
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return $this->getRenderedContent( $content, $params['file']->getValue() ); |
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} |
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private function setFields( array $params ) { |
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$this->syntaxHighlightLanguage = $params['lang']->getValue(); |
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$this->syntaxHighlightEnableLineNumbers = $params['line']->getValue(); |
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$this->syntaxHighlightStartingLineNumber = $params['start']->getValue(); |
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$this->syntaxHighlightHighlightedLines = $params['highlight']->getValue(); |
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$this->syntaxHighlightInlineSource = $params['inline']->getValue(); |
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} |
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private function getRenderedContent( string $content, string $fileName ): string { |
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if ( $this->syntaxHighlightLanguage === '' ) { |
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return ( new ContentPurifier() ) |
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->purify( $this->getRenderedNonSyntaxContent( $content, $fileName ) ); |
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} |
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return $this->getRenderedSyntaxContent( $content ); |
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} |
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private function getRenderedNonSyntaxContent( string $content, string $fileName ): string { |
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if ( $this->isMarkdownFile( $fileName ) ) { |
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return $this->renderAsMarkdown( $content ); |
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} |
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return $content; |
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} |
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private function getRenderedSyntaxContent( string $content ): string { |
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$syntax_highlight = "<syntaxhighlight lang=\"". $this->syntaxHighlightLanguage ."\""; |
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$syntax_highlight .= " start=\"". $this->syntaxHighlightStartingLineNumber ."\""; |
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if ( $this->syntaxHighlightEnableLineNumbers === true ) { |
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$syntax_highlight .= " line"; |
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} |
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if ( $this->syntaxHighlightHighlightedLines !== "" ) { |
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$syntax_highlight .= " highlight=\"". $this->syntaxHighlightHighlightedLines ."\""; |
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} |
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if ( $this->syntaxHighlightInlineSource === true ) { |
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$syntax_highlight .= " inline"; |
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} |
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$syntax_highlight .= ">$content</syntaxhighlight>"; |
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$parsed = $this->parser->recursiveTagParse( $syntax_highlight, null ); |
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if ( is_string( $parsed ) ) { |
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return $parsed; |
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} |
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return ''; |
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} |
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private function isMarkdownFile( string $fileName ): bool { |
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return $this->fileHasExtension( $fileName, 'md' ) |
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|| $this->fileHasExtension( $fileName,'markdown' ); |
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} |
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private function fileHasExtension( string $fileName, string $extension ): bool { |
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$fullExtension = '.' . $extension; |
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return substr( $fileName, -strlen( $fullExtension ) ) === $fullExtension; |
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} |
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private function renderAsMarkdown( string $content ): string { |
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return Markdown::defaultTransform( $content ); |
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} |
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} |
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JeroenDeDauw /
GitHub
