X-Git-Url: https://git.heureux-cyclage.org/?p=lhc%2Fweb%2Fwiklou.git;a=blobdiff_plain;f=includes%2FMessage.php;h=fac9a598939b3ea73ee917a7a5ae9275bd7c2746;hp=2a55d0ee748f54b138bb470fa1e184dc34c21063;hb=ee56f00ddf0609082f8ae9a4dc3e6e1b6f54ddfd;hpb=b5370206ff602728c08403f14756d4339bf0a708

diff --git a/includes/Message.php b/includes/Message.php
index 2a55d0ee74..fac9a59893 100644
--- a/includes/Message.php
+++ b/includes/Message.php
@@ -1123,11 +1123,29 @@ class Message implements MessageSpecifier, Serializable {
 	 * @return string
 	 */
 	protected function replaceParameters( $message, $type = 'before', $format ) {
+		// A temporary marker for $1 parameters that is only valid
+		// in non-attribute contexts. However if the entire message is escaped
+		// then we don't want to use it because it will be mangled in all contexts
+		// and its unnessary as ->escaped() messages aren't html.
+		$marker = $format === self::FORMAT_ESCAPED ? '$' : '$\'"';
 		$replacementKeys = [];
 		foreach ( $this->parameters as $n => $param ) {
 			list( $paramType, $value ) = $this->extractParam( $param, $format );
-			if ( $type === $paramType ) {
-				$replacementKeys['$' . ( $n + 1 )] = $value;
+			if ( $type === 'before' ) {
+				if ( $paramType === 'before' ) {
+					$replacementKeys['$' . ( $n + 1 )] = $value;
+				} else /* $paramType === 'after' */ {
+					// To protect against XSS from replacing parameters
+					// inside html attributes, we convert $1 to $'"1.
+					// In the event that one of the parameters ends up
+					// in an attribute, either the ' or the " will be
+					// escaped, breaking the replacement and avoiding XSS.
+					$replacementKeys['$' . ( $n + 1 )] = $marker . ( $n + 1 );
+				}
+			} else {
+				if ( $paramType === 'after' ) {
+					$replacementKeys[$marker . ( $n + 1 )] = $value;
+				}
 			}
 		}
 		$message = strtr( $message, $replacementKeys );
@@ -1226,7 +1244,16 @@ class Message implements MessageSpecifier, Serializable {
 			$this->getLanguage()
 		);
 
-		return $out instanceof ParserOutput ? $out->getText() : $out;
+		return $out instanceof ParserOutput
+			? $out->getText( [
+				'enableSectionEditLinks' => false,
+				// Wrapping messages in an extra <div> is probably not expected. If
+				// they're outside the content area they probably shouldn't be
+				// targeted by CSS that's targeting the parser output, and if
+				// they're inside they already are from the outer div.
+				'unwrap' => true,
+			] )
+			: $out;
 	}
 
 	/**
@@ -1288,16 +1315,15 @@ class Message implements MessageSpecifier, Serializable {
 	 */
 	protected function formatPlaintext( $plaintext, $format ) {
 		switch ( $format ) {
-		case self::FORMAT_TEXT:
-		case self::FORMAT_PLAIN:
-			return $plaintext;
-
-		case self::FORMAT_PARSE:
-		case self::FORMAT_BLOCK_PARSE:
-		case self::FORMAT_ESCAPED:
-		default:
-			return htmlspecialchars( $plaintext, ENT_QUOTES );
-
+			case self::FORMAT_TEXT:
+			case self::FORMAT_PLAIN:
+				return $plaintext;
+
+			case self::FORMAT_PARSE:
+			case self::FORMAT_BLOCK_PARSE:
+			case self::FORMAT_ESCAPED:
+			default:
+				return htmlspecialchars( $plaintext, ENT_QUOTES );
 		}
 	}