GlobalRenameUserValidator.php
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GlobalRenameUserValidator.php
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	<?php

	namespace MediaWiki\Extension\CentralAuth\GlobalRename;

	use MediaWiki\Extension\CentralAuth\User\CentralAuthUser;
	use MediaWiki\Status\Status;
	use MediaWiki\User\UserIdentity;
	use MediaWiki\User\UserNameUtils;

	/**
	* Verify whether a potential global rename is valid
	*
	* @license GPL-2.0-or-later
	* @author Marius Hoch < hoo@online.de >
	*/
	class GlobalRenameUserValidator {

	private UserNameUtils $userNameUtils;

	public function __construct( UserNameUtils $userNameUtils ) {
	$this->userNameUtils = $userNameUtils;
	}

	/**
	* Check that we can perform the rename
	*
	* @param UserIdentity $oldUser
	* @param UserIdentity $newUser
	*
	* @return Status
	*/
	public function validate( UserIdentity $oldUser, UserIdentity $newUser ) {
	$status = new Status();

	if ( !$this->userNameUtils->isCreatable( $newUser->getName() ) ) {
	$status->fatal( 'centralauth-rename-badusername' );
	}

	$caOldUser = CentralAuthUser::getInstance( $oldUser );
	if ( !$caOldUser->exists() ) {
	$status->fatal( 'centralauth-rename-doesnotexist' );
	}
	$caNewUser = CentralAuthUser::getInstance( $newUser );
	if ( $caNewUser->exists() ) {
	$status->fatal( 'centralauth-rename-alreadyexists' );
	}

	$unattached = $caNewUser->listUnattached();
	if ( $unattached ) {
	$status->fatal( 'centralauth-rename-unattached-intheway' );
	}

	// Check we're not currently renaming the user
	$renameState = $caOldUser->renameInProgress();
	if ( $renameState ) {
	$status->fatal( 'centralauth-rename-alreadyinprogress', $renameState[1] );
	}

	return $status;
	}
	}