wikimedia/mediawiki-core

<?php
/**
 * Content for JavaScript pages.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @since 1.21
 *
 * @file
 * @ingroup Content
 *
 * @author Daniel Kinzler
 */

namespace MediaWiki\Content;

use MediaWiki\Title\Title;

/**
 * Content for JavaScript pages.
 *
 * @newable
 * @ingroup Content
 */
class JavaScriptContent extends TextContent {

    /**
     * @var Title|null|false
     */
    private $redirectTarget = false;

    /**
     * @stable to call
     * @param string $text JavaScript code.
     * @param string $modelId the content model name
     */
    public function __construct( $text, $modelId = CONTENT_MODEL_JAVASCRIPT ) {
        parent::__construct( $text, $modelId );
    }

    /**
     * If this page is a redirect, return the content
     * if it should redirect to $target instead
     *
     * @param Title $target
     * @return JavaScriptContent
     */
    public function updateRedirect( Title $target ) {
        if ( !$this->isRedirect() ) {
            return $this;
        }

        // @phan-suppress-next-line PhanTypeMismatchReturnSuperType False positive
        return $this->getContentHandler()->makeRedirectContent( $target );
    }

    /**
     * @return Title|null
     */
    public function getRedirectTarget() {
        if ( $this->redirectTarget !== false ) {
            return $this->redirectTarget;
        }
        $this->redirectTarget = null;
        $text = $this->getText();
        if ( strpos( $text, '/* #REDIRECT */' ) === 0 ) {
            // Compatiblity with pages created by MW 1.41 and earlier:
            // Older redirects use an over-escaped \u0026 instead of a literal ampersand (T107289)
            $text = str_replace( '\u0026', '&', $text );
            // Extract the title from the url
            if ( preg_match( '/title=(.*?)&action=raw/', $text, $matches ) ) {
                $title = Title::newFromText( urldecode( $matches[1] ) );
                if ( $title ) {
                    // Have a title, check that the current content equals what
                    // the redirect content should be
                    $expected = $this->getContentHandler()->makeRedirectContent( $title );
                    '@phan-var JavaScriptContent $expected';
                    if ( $expected->getText() === $text ) {
                        $this->redirectTarget = $title;
                    }
                }
            }
        }

        return $this->redirectTarget;
    }

}
/** @deprecated class alias since 1.43 */
class_alias( JavaScriptContent::class, 'JavaScriptContent' );