Escape {{, [[ and < in doc pages (not all wikitext, we still want headings, bullets...

diff --git a/includes/installer/WebInstaller.php b/includes/installer/WebInstaller.php
index 95e1f81..547bf66 100644 (file)
--- a/includes/installer/WebInstaller.php
+++ b/includes/installer/WebInstaller.php
@@ -1663,6 +1663,8 @@ abstract class WebInstaller_Document extends WebInstallerPage {
        }
 
        protected function formatTextFile( $text ) {
+               $text = str_replace( array( '<', '{{', '[[' ),
+                       array( '&lt;', '&#123;&#123;', '&#91;&#91;' ), $text );
                // replace numbering with [1], [2], etc with MW-style numbering
                $text = preg_replace( "/\r?\n(\r?\n)?\\[\\d+\\]/m", "\\1#", $text );
                // join word-wrapped lines into one