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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\Block;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use UnexpectedValueException;
/**
* Defines the actions that can be blocked by a partial block. They are
* always blocked by a sitewide block.
*
* NB: The terms "right" and "action" are often used to describe the same
* string, depending on the context. E.g. a querystring might contain
* 'action=edit', but the PermissionManager will refer to the 'edit' right.
*
* Here, we use "action", since a user may be in a group that has a
* certain right, while also being blocked from performing that action.
*
* @since 1.37
*/
class BlockActionInfo {
private HookRunner $hookRunner;
/** @internal Public for testing only -- use getIdFromAction() */
public const ACTION_UPLOAD = 1;
/** @internal Public for testing only -- use getIdFromAction() */
public const ACTION_MOVE = 2;
/** @internal Public for testing only -- use getIdFromAction() */
public const ACTION_CREATE = 3;
/**
* Core block actions.
*
* Each key is an action string passed to PermissionManager::checkUserBlock
* Each value is a class constant for that action
*
* Each key has a corresponding message with key "ipb-action-$key"
*
* Core messages:
* ipb-action-upload
* ipb-action-move
* ipb-action-create
*/
private const CORE_BLOCK_ACTIONS = [
'upload' => self::ACTION_UPLOAD,
'move' => self::ACTION_MOVE,
'create' => self::ACTION_CREATE,
];
public function __construct( HookContainer $hookContainer ) {
$this->hookRunner = new HookRunner( $hookContainer );
}
/**
* Cache the array of actions
* @var int[]|null
*/
private $allBlockActions = null;
/**
* @return int[]
*/
public function getAllBlockActions(): array {
// Don't run the hook multiple times in the same request
if ( !$this->allBlockActions ) {
$this->allBlockActions = self::CORE_BLOCK_ACTIONS;
$this->hookRunner->onGetAllBlockActions( $this->allBlockActions );
}
if ( count( $this->allBlockActions ) !== count( array_unique( $this->allBlockActions ) ) ) {
throw new UnexpectedValueException( 'Blockable action IDs not unique' );
}
return $this->allBlockActions;
}
/**
* @param int $actionId
* @return string|false
*/
public function getActionFromId( int $actionId ) {
return array_search( $actionId, $this->getAllBlockActions() );
}
/**
* @param string $action
* @return int|bool False if the action is not in the list of blockable actions
*/
public function getIdFromAction( string $action ) {
return $this->getAllBlockActions()[$action] ?? false;
}
}