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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | use MediaWiki\Title\MalformedTitleException; |
22 | |
23 | /** |
24 | * Show an error page on a badtitle. |
25 | * |
26 | * We always emit a HTTP 404 error code since pages with an invalid title will |
27 | * never have any content. In the past this emitted a 400 error code to ensure |
28 | * caching proxies and mobile browsers don't cache it as valid content (T35646), |
29 | * but that had the disadvantage of telling caches in front of MediaWiki |
30 | * (Varnish, etc.), not to cache it either. |
31 | * |
32 | * @newable |
33 | * @since 1.19 |
34 | * @ingroup Exception |
35 | */ |
36 | class BadTitleError extends ErrorPageError { |
37 | /** |
38 | * @stable to call |
39 | * |
40 | * @param string|Message|MalformedTitleException $msg A message key (default: 'badtitletext'), or |
41 | * a MalformedTitleException to figure out things from |
42 | * @param array $params Parameter to wfMessage() |
43 | */ |
44 | public function __construct( $msg = 'badtitletext', $params = [] ) { |
45 | if ( $msg instanceof MalformedTitleException ) { |
46 | $errorMessage = $msg->getErrorMessage(); |
47 | if ( !$errorMessage ) { |
48 | parent::__construct( 'badtitle', 'badtitletext', [] ); |
49 | } else { |
50 | $errorMessageParams = $msg->getErrorMessageParameters(); |
51 | parent::__construct( 'badtitle', $errorMessage, $errorMessageParams ); |
52 | } |
53 | } else { |
54 | parent::__construct( 'badtitle', $msg, $params ); |
55 | } |
56 | } |
57 | |
58 | /** |
59 | * @inheritDoc |
60 | */ |
61 | public function report( $action = self::SEND_OUTPUT ) { |
62 | global $wgOut; |
63 | |
64 | $wgOut->setStatusCode( 404 ); |
65 | |
66 | parent::report( self::STAGE_OUTPUT ); |
67 | |
68 | // Unconditionally cache the error for an hour, see T316932 |
69 | $wgOut->enableClientCache(); |
70 | $wgOut->setCdnMaxage( 3600 ); |
71 | |
72 | if ( $action === self::SEND_OUTPUT ) { |
73 | $wgOut->output(); |
74 | } |
75 | } |
76 | } |