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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 |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
16 | * |
17 | * @file |
18 | * @ingroup Actions |
19 | */ |
20 | |
21 | use MediaWiki\MainConfigNames; |
22 | use MediaWiki\MediaWikiServices; |
23 | |
24 | /** |
25 | * An action that views article content |
26 | * |
27 | * This is a wrapper that will call Article::view(). |
28 | * |
29 | * @ingroup Actions |
30 | */ |
31 | class ViewAction extends FormlessAction { |
32 | |
33 | public function getName() { |
34 | return 'view'; |
35 | } |
36 | |
37 | public function onView() { |
38 | return null; |
39 | } |
40 | |
41 | public function needsReadRights() { |
42 | // Pages in $wgWhitelistRead can be viewed without having the 'read' |
43 | // right. We rely on Article::view() to properly check read access. |
44 | return false; |
45 | } |
46 | |
47 | public function show() { |
48 | $config = $this->context->getConfig(); |
49 | |
50 | // Emit deprecated hook warnings. |
51 | // We do this only in the view action so that it reliably shows up in |
52 | // the debug toolbar without unduly impacting the performance of API and |
53 | // ResourceLoader requests. |
54 | MediaWikiServices::getInstance()->getHookContainer()->emitDeprecationWarnings(); |
55 | |
56 | if ( |
57 | !$config->get( MainConfigNames::DebugToolbar ) && // don't let this get stuck on pages |
58 | $this->getWikiPage()->checkTouched() // page exists and is not a redirect |
59 | ) { |
60 | // Include any redirect in the last-modified calculation |
61 | $redirFromTitle = $this->getArticle()->getRedirectedFrom(); |
62 | if ( !$redirFromTitle ) { |
63 | $touched = $this->getWikiPage()->getTouched(); |
64 | } else { |
65 | $touched = max( |
66 | $this->getWikiPage()->getTouched(), |
67 | $redirFromTitle->getTouched() |
68 | ); |
69 | } |
70 | |
71 | // Send HTTP 304 if the IMS matches or otherwise set expiry/last-modified headers |
72 | if ( $touched && $this->getOutput()->checkLastModified( $touched ) ) { |
73 | wfDebug( __METHOD__ . ": done 304" ); |
74 | return; |
75 | } |
76 | } |
77 | |
78 | $this->getArticle()->view(); |
79 | } |
80 | } |