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<?php
/**
* 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
*
* @file
*/
use MediaWiki\Message\Message;
use MediaWiki\Title\MalformedTitleException;
/**
* Show an error page on a badtitle.
*
* We always emit a HTTP 404 error code since pages with an invalid title will
* never have any content. In the past this emitted a 400 error code to ensure
* caching proxies and mobile browsers don't cache it as valid content (T35646),
* but that had the disadvantage of telling caches in front of MediaWiki
* (Varnish, etc.), not to cache it either.
*
* @newable
* @since 1.19
* @ingroup Exception
*/
class BadTitleError extends ErrorPageError {
/**
* @stable to call
*
* @param string|Message|MalformedTitleException $msg A message key (default: 'badtitletext'), or
* a MalformedTitleException to figure out things from
* @param array $params Parameter to wfMessage()
*/
public function __construct( $msg = 'badtitletext', $params = [] ) {
if ( $msg instanceof MalformedTitleException ) {
$errorMessage = $msg->getErrorMessage();
if ( !$errorMessage ) {
parent::__construct( 'badtitle', 'badtitletext', [] );
} else {
$errorMessageParams = $msg->getErrorMessageParameters();
parent::__construct( 'badtitle', $errorMessage, $errorMessageParams );
}
} else {
parent::__construct( 'badtitle', $msg, $params );
}
}
/**
* @inheritDoc
*/
public function report( $action = self::SEND_OUTPUT ) {
global $wgOut;
$wgOut->setStatusCode( 404 );
parent::report( self::STAGE_OUTPUT );
// Unconditionally cache the error for an hour, see T316932
$wgOut->enableClientCache();
$wgOut->setCdnMaxage( 3600 );
if ( $action === self::SEND_OUTPUT ) {
$wgOut->output();
}
}
}
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