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ViewAction.php
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ViewAction.php
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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
*
* @file
* @ingroup Actions
*/
namespace MediaWiki\Actions;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
/**
* An action that views article content
*
* This is a wrapper that will call Article::view().
*
* @ingroup Actions
*/
class ViewAction extends FormlessAction {
public function getName() {
return 'view';
}
public function onView() {
return null;
}
public function needsReadRights() {
// Pages in $wgWhitelistRead can be viewed without having the 'read'
// right. We rely on Article::view() to properly check read access.
return false;
}
public function show() {
$config = $this->context->getConfig();
// Emit deprecated hook warnings.
// We do this only in the view action so that it reliably shows up in
// the debug toolbar without unduly impacting the performance of API and
// ResourceLoader requests.
MediaWikiServices::getInstance()->getHookContainer()->emitDeprecationWarnings();
if (
!$config->get( MainConfigNames::DebugToolbar ) && // don't let this get stuck on pages
$this->getWikiPage()->checkTouched() // page exists and is not a redirect
) {
// Include any redirect in the last-modified calculation
$redirFromTitle = $this->getArticle()->getRedirectedFrom();
if ( !$redirFromTitle ) {
$touched = $this->getWikiPage()->getTouched();
} else {
$touched = max(
$this->getWikiPage()->getTouched(),
$redirFromTitle->getTouched()
);
}
// Send HTTP 304 if the IMS matches or otherwise set expiry/last-modified headers
if ( $touched && $this->getOutput()->checkLastModified( $touched ) ) {
wfDebug( __METHOD__ . ": done 304" );
return;
}
}
$this->getArticle()->view();
}
}
/** @deprecated class alias since 1.44 */
class_alias( ViewAction::class, 'ViewAction' );

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ViewAction.php (2 KB)

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