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RedirectSpecialPage.php
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RedirectSpecialPage.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.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\SpecialPage;
use LogicException;
use MediaWiki\Title\Title;
/**
* Shortcut to construct a special page alias.
*
* @stable to extend
*
* @ingroup SpecialPage
*/
abstract class RedirectSpecialPage extends UnlistedSpecialPage {
/** @var array Query parameters that can be passed through redirects */
protected $mAllowedRedirectParams = [];
/** @var array Query parameters added by redirects */
protected $mAddedRedirectParams = [];
/**
* @stable to override
* @param string|null $subpage
*/
public function execute( $subpage ) {
$redirect = $this->getRedirect( $subpage );
$query = $this->getRedirectQuery( $subpage );
if ( $redirect instanceof Title ) {
// Redirect to a page title with possible query parameters
$url = $redirect->getFullUrlForRedirect( $query );
$this->getOutput()->redirect( $url );
} elseif ( $redirect === true ) {
// Redirect to index.php with query parameters
$url = wfAppendQuery( wfScript( 'index' ), $query );
$this->getOutput()->redirect( $url );
} else {
$this->showNoRedirectPage();
}
}
/**
* If the special page is a redirect, then get the Title object it redirects to.
* False otherwise.
*
* @param string|null $subpage
* @return Title|bool
*/
abstract public function getRedirect( $subpage );
/**
* Return part of the request string for a special redirect page
* This allows passing, e.g. action=history to Special:Mypage, etc.
*
* @stable to override
* @param string|null $subpage
* @return array|false
*/
public function getRedirectQuery( $subpage ) {
$params = [];
$request = $this->getRequest();
foreach ( array_merge( $this->mAllowedRedirectParams,
[ 'uselang', 'useskin', 'variant', 'debug', 'safemode' ] // parameters which can be passed to all pages
) as $arg ) {
if ( $request->getVal( $arg, null ) !== null ) {
$params[$arg] = $request->getVal( $arg );
} elseif ( $request->getArray( $arg, null ) !== null ) {
$params[$arg] = $request->getArray( $arg );
}
}
foreach ( $this->mAddedRedirectParams as $arg => $val ) {
$params[$arg] = $val;
}
return count( $params )
? $params
: false;
}
/**
* Indicate if the target of this redirect can be used to identify
* a particular user of this wiki (e.g., if the redirect is to the
* user page of a User). See T109724.
*
* @stable to override
* @since 1.27
* @return bool
*/
public function personallyIdentifiableTarget() {
return false;
}
/**
* @stable to override
*/
protected function showNoRedirectPage() {
$class = static::class;
throw new LogicException( "RedirectSpecialPage $class doesn't redirect!" );
}
}
/** @deprecated class alias since 1.41 */
class_alias( RedirectSpecialPage::class, 'RedirectSpecialPage' );

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Wed, Aug 19, 10:21 (2 w, 6 d ago)
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RedirectSpecialPage.php (3 KB)

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