X-Git-Url: https://git.heureux-cyclage.org/?p=lhc%2Fweb%2Fwiklou.git;a=blobdiff_plain;f=includes%2Fparser%2FParserOutput.php;h=19375e0c2199d9629eaee9e1be10b29bacc7c1af;hp=ff9c28d2bbd8bad6acb7c15710cbb05d7df174da;hb=ee56f00ddf0609082f8ae9a4dc3e6e1b6f54ddfd;hpb=6eb558b5e05d329067e9080b3502e2b5b7d5bd60

diff --git a/includes/parser/ParserOutput.php b/includes/parser/ParserOutput.php
index ff9c28d2bb..19375e0c21 100644
--- a/includes/parser/ParserOutput.php
+++ b/includes/parser/ParserOutput.php
@@ -21,12 +21,14 @@
  * @file
  * @ingroup Parser
  */
+
 class ParserOutput extends CacheTime {
 	/**
-	 * Feature flag to indicate to extensions that MediaWiki core supports and
+	 * Feature flags to indicate to extensions that MediaWiki core supports and
 	 * uses getText() stateless transforms.
 	 */
 	const SUPPORTS_STATELESS_TRANSFORMS = 1;
+	const SUPPORTS_UNWRAP_TRANSFORM = 1;
 
 	/**
 	 * @var string $mText The output text
@@ -266,29 +268,60 @@ class ParserOutput extends CacheTime {
 	 *     to generate one and `__NOTOC__` wasn't used. Default is true,
 	 *     but might be statefully overridden.
 	 *  - enableSectionEditLinks: (bool) Include section edit links, assuming
-	 *    section edit link tokens are present in the HTML. Default is true,
+	 *     section edit link tokens are present in the HTML. Default is true,
 	 *     but might be statefully overridden.
+	 *  - unwrap: (bool) Remove a wrapping mw-parser-output div. Default is false.
+	 *  - deduplicateStyles: (bool) When true, which is the default, `<style>`
+	 *    tags with the `data-mw-deduplicate` attribute set are deduplicated by
+	 *    value of the attribute: all but the first will be replaced by `<link
+	 *    rel="mw-deduplicated-inline-style" href="mw-data:..."/>` tags, where
+	 *    the scheme-specific-part of the href is the (percent-encoded) value
+	 *    of the `data-mw-deduplicate` attribute.
 	 * @return string HTML
 	 */
 	public function getText( $options = [] ) {
-		// @todo Warn if !array_key_exists( 'allowTOC', $options ) && empty( $this->mTOCEnabled )
+		if ( !array_key_exists( 'allowTOC', $options ) && empty( $this->mTOCEnabled ) ) {
+			wfDeprecated( 'ParserOutput stateful allowTOC', '1.31' );
+		}
 
-		// @todo Warn if !array_key_exists( 'enableSectionEditLinks', $options )
-		//     && !$this->mEditSectionTokens
 		//  Note that while $this->mEditSectionTokens formerly defaulted to false,
 		//  ParserOptions->getEditSection() defaults to true and Parser copies
 		//  that to us so true makes more sense as the stateless default.
+		if ( !array_key_exists( 'enableSectionEditLinks', $options ) && !$this->mEditSectionTokens ) {
+			wfDeprecated( 'ParserOutput stateful enableSectionEditLinks', '1.31' );
+		}
 
 		$options += [
 			// empty() here because old cached versions might lack the field somehow.
 			// In that situation, the historical behavior (possibly buggy) is to remove the TOC.
 			'allowTOC' => !empty( $this->mTOCEnabled ),
 			'enableSectionEditLinks' => $this->mEditSectionTokens,
+			'unwrap' => false,
+			'deduplicateStyles' => true,
 		];
 		$text = $this->mText;
 
 		Hooks::runWithoutAbort( 'ParserOutputPostCacheTransform', [ $this, &$text, &$options ] );
 
+		if ( $options['unwrap'] !== false ) {
+			$start = Html::openElement( 'div', [
+				'class' => 'mw-parser-output'
+			] );
+			$startLen = strlen( $start );
+			$end = Html::closeElement( 'div' );
+			$endPos = strrpos( $text, $end );
+			$endLen = strlen( $end );
+
+			if ( substr( $text, 0, $startLen ) === $start && $endPos !== false
+				// if the closing div is followed by real content, bail out of unwrapping
+				&& preg_match( '/^(?>\s*<!--.*?-->)*\s*$/s', substr( $text, $endPos + $endLen ) )
+			) {
+				$text = substr( $text, $startLen );
+				$text = substr( $text, 0, $endPos - $startLen )
+					. substr( $text, $endPos - $startLen + $endLen );
+			}
+		}
+
 		if ( $options['enableSectionEditLinks'] ) {
 			$text = preg_replace_callback(
 				self::EDITSECTION_REGEX,
@@ -325,6 +358,35 @@ class ParserOutput extends CacheTime {
 			);
 		}
 
+		if ( $options['deduplicateStyles'] ) {
+			$seen = [];
+			$text = preg_replace_callback(
+				'#<style\s+([^>]*data-mw-deduplicate\s*=[^>]*)>.*?</style>#s',
+				function ( $m ) use ( &$seen ) {
+					$attr = Sanitizer::decodeTagAttributes( $m[1] );
+					if ( !isset( $attr['data-mw-deduplicate'] ) ) {
+						return $m[0];
+					}
+
+					$key = $attr['data-mw-deduplicate'];
+					if ( !isset( $seen[$key] ) ) {
+						$seen[$key] = true;
+						return $m[0];
+					}
+
+					// We were going to use an empty <style> here, but there
+					// was concern that would be too much overhead for browsers.
+					// So let's hope a <link> with a non-standard rel and href isn't
+					// going to be misinterpreted or mangled by any subsequent processing.
+					return Html::element( 'link', [
+						'rel' => 'mw-deduplicated-inline-style',
+						'href' => "mw-data:" . wfUrlencode( $key ),
+					] );
+				},
+				$text
+			);
+		}
+
 		return $text;
 	}
 
@@ -596,7 +658,7 @@ class ParserOutput extends CacheTime {
 
 		# Replace unnecessary URL escape codes with the referenced character
 		# This prevents spammers from hiding links from the filters
-		$url = parser::normalizeLinkUrl( $url );
+		$url = Parser::normalizeLinkUrl( $url );
 
 		$registerExternalLink = true;
 		if ( !$wgRegisterInternalExternals ) {