<?php
/**
 * Copyright © 2016 Wikimedia Foundation and contributors
 *
 * 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
 */

use MediaWiki\Auth\AuthManager;

/**
 * Change authentication data with AuthManager
 *
 * @ingroup API
 */
class ApiChangeAuthenticationData extends ApiBase {

	public function __construct( ApiMain $main, $action ) {
		parent::__construct( $main, $action, 'changeauth' );
	}

	public function execute() {
		if ( !$this->getUser()->isLoggedIn() ) {
			$this->dieWithError( 'apierror-mustbeloggedin-changeauthenticationdata', 'notloggedin' );
		}

		$helper = new ApiAuthManagerHelper( $this );
		$manager = AuthManager::singleton();

		// Check security-sensitive operation status
		$helper->securitySensitiveOperation( 'ChangeCredentials' );

		// Fetch the request
		$reqs = ApiAuthManagerHelper::blacklistAuthenticationRequests(
			$helper->loadAuthenticationRequests( AuthManager::ACTION_CHANGE ),
			$this->getConfig()->get( 'ChangeCredentialsBlacklist' )
		);
		if ( count( $reqs ) !== 1 ) {
			$this->dieWithError( 'apierror-changeauth-norequest', 'badrequest' );
		}
		$req = reset( $reqs );

		// Make the change
		$status = $manager->allowsAuthenticationDataChange( $req, true );
		Hooks::run( 'ChangeAuthenticationDataAudit', [ $req, $status ] );
		if ( !$status->isGood() ) {
			$this->dieStatus( $status );
		}
		$manager->changeAuthenticationData( $req );

		$this->getResult()->addValue( null, 'changeauthenticationdata', [ 'status' => 'success' ] );
	}

	public function isWriteMode() {
		return true;
	}

	public function needsToken() {
		return 'csrf';
	}

	public function getAllowedParams() {
		return ApiAuthManagerHelper::getStandardParams( AuthManager::ACTION_CHANGE,
			'request'
		);
	}

	public function dynamicParameterDocumentation() {
		return [ 'api-help-authmanagerhelper-additional-params', AuthManager::ACTION_CHANGE ];
	}

	protected function getExamplesMessages() {
		return [
			'action=changeauthenticationdata' .
				'&changeauthrequest=MediaWiki%5CAuth%5CPasswordAuthenticationRequest' .
				'&password=ExamplePassword&retype=ExamplePassword&changeauthtoken=123ABC'
				=> 'apihelp-changeauthenticationdata-example-password',
		];
	}

	public function getHelpUrls() {
		return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Manage_authentication_data';
	}
}
