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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\EditPage\Constraint;
use MediaWiki\Permissions\Authority;
use MediaWiki\Permissions\PermissionStatus;
use MediaWiki\Title\Title;
use StatusValue;
/**
* Verify user permissions if changing content model:
* Must have editcontentmodel rights
* Must be able to edit under the new content model
* Must not have exceeded the rate limit
*
* @since 1.36
* @internal
* @author DannyS712
*/
class ContentModelChangeConstraint implements IEditConstraint {
private PermissionStatus $status;
private Authority $performer;
private Title $title;
private string $newContentModel;
/**
* @param Authority $performer
* @param Title $title
* @param string $newContentModel
*/
public function __construct(
Authority $performer,
Title $title,
string $newContentModel
) {
$this->performer = $performer;
$this->title = $title;
$this->newContentModel = $newContentModel;
}
public function checkConstraint(): string {
$this->status = PermissionStatus::newEmpty();
if ( $this->newContentModel === $this->title->getContentModel() ) {
// No change
return self::CONSTRAINT_PASSED;
}
if ( !$this->performer->authorizeWrite( 'editcontentmodel', $this->title, $this->status ) ) {
return self::CONSTRAINT_FAILED;
}
// Make sure the user can edit the page under the new content model too.
// We rely on caching in UserAuthority to avoid bumping the rate limit counter twice.
$titleWithNewContentModel = clone $this->title;
$titleWithNewContentModel->setContentModel( $this->newContentModel );
if (
!$this->performer->authorizeWrite( 'editcontentmodel', $titleWithNewContentModel, $this->status )
|| !$this->performer->authorizeWrite( 'edit', $titleWithNewContentModel, $this->status )
) {
return self::CONSTRAINT_FAILED;
}
return self::CONSTRAINT_PASSED;
}
public function getLegacyStatus(): StatusValue {
$statusValue = StatusValue::newGood();
if ( !$this->status->isGood() ) {
if ( $this->status->isRateLimitExceeded() ) {
$statusValue->setResult( false, self::AS_RATE_LIMITED );
} else {
$statusValue->setResult( false, self::AS_NO_CHANGE_CONTENT_MODEL );
}
}
// TODO: Use error messages from the PermissionStatus ($this->status) here - T384399
return $statusValue;
}
}
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