ImageRedirectConstraint.php
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ImageRedirectConstraint.php
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	<?php
	/**
	* @license GPL-2.0-or-later
	* @file
	*/

	namespace MediaWiki\EditPage\Constraint;

	use MediaWiki\Content\Content;
	use MediaWiki\Linker\LinkTarget;
	use MediaWiki\Permissions\Authority;
	use StatusValue;

	/**
	* Verify user permissions:
	* If creating a redirect in the file namespace, must have upload rights
	*
	* @since 1.36
	* @internal
	* @author DannyS712
	*/
	class ImageRedirectConstraint implements IEditConstraint {

	private string $result;

	/**
	* @param Content $newContent
	* @param LinkTarget $title
	* @param Authority $performer
	*/
	public function __construct(
	private readonly Content $newContent,
	private readonly LinkTarget $title,
	private readonly Authority $performer,
	) {
	}

	public function checkConstraint(): string {
	// Check isn't simple enough to just repeat when getting the status
	if ( $this->title->getNamespace() === NS_FILE &&
	$this->newContent->isRedirect() &&
	!$this->performer->isAllowed( 'upload' )
	) {
	$this->result = self::CONSTRAINT_FAILED;
	return self::CONSTRAINT_FAILED;
	}

	$this->result = self::CONSTRAINT_PASSED;
	return self::CONSTRAINT_PASSED;
	}

	public function getLegacyStatus(): StatusValue {
	$statusValue = StatusValue::newGood();

	if ( $this->result === self::CONSTRAINT_FAILED ) {
	$errorCode = $this->performer->getUser()->isRegistered() ?
	self::AS_IMAGE_REDIRECT_LOGGED :
	self::AS_IMAGE_REDIRECT_ANON;
	$statusValue->setResult( false, $errorCode );
	}

	return $statusValue;
	}

	}