ApiUserrights.php
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ApiUserrights.php
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	<?php

	/**
	* API userrights module
	*
	* Copyright © 2009 Roan Kattouw <roan.kattouw@gmail.com>
	*
	* @license GPL-2.0-or-later
	* @file
	*/

	namespace MediaWiki\Api;

	use MediaWiki\ChangeTags\ChangeTags;
	use MediaWiki\MainConfigNames;
	use MediaWiki\ParamValidator\TypeDef\UserDef;
	use MediaWiki\Title\Title;
	use MediaWiki\User\MultiFormatUserIdentityLookup;
	use MediaWiki\User\Options\UserOptionsLookup;
	use MediaWiki\User\UserGroupAssignmentService;
	use MediaWiki\User\UserGroupManager;
	use MediaWiki\User\UserIdentity;
	use MediaWiki\Watchlist\WatchedItemStoreInterface;
	use MediaWiki\Watchlist\WatchlistManager;
	use Wikimedia\ParamValidator\ParamValidator;
	use Wikimedia\ParamValidator\TypeDef\ExpiryDef;
	use Wikimedia\Rdbms\IDBAccessObject;

	/**
	* @ingroup API
	*/
	class ApiUserrights extends ApiBase {

	use ApiWatchlistTrait;

	/** @var UserIdentity\|null */
	private $mUser = null;

	private UserGroupManager $userGroupManager;
	private WatchedItemStoreInterface $watchedItemStore;
	private UserGroupAssignmentService $userGroupAssignmentService;
	private MultiFormatUserIdentityLookup $multiFormatUserIdentityLookup;

	public function __construct(
	ApiMain $mainModule,
	string $moduleName,
	UserGroupManager $userGroupManager,
	WatchedItemStoreInterface $watchedItemStore,
	WatchlistManager $watchlistManager,
	UserOptionsLookup $userOptionsLookup,
	UserGroupAssignmentService $userGroupAssignmentService,
	MultiFormatUserIdentityLookup $multiFormatUserIdentityLookup,
	) {
	parent::__construct( $mainModule, $moduleName );
	$this->userGroupManager = $userGroupManager;
	$this->watchedItemStore = $watchedItemStore;

	// Variables needed in ApiWatchlistTrait trait
	$this->watchlistExpiryEnabled = $this->getConfig()->get( MainConfigNames::WatchlistExpiry );
	$this->watchlistMaxDuration =
	$this->getConfig()->get( MainConfigNames::WatchlistExpiryMaxDuration );
	$this->watchlistManager = $watchlistManager;
	$this->userOptionsLookup = $userOptionsLookup;
	$this->userGroupAssignmentService = $userGroupAssignmentService;
	$this->multiFormatUserIdentityLookup = $multiFormatUserIdentityLookup;
	}

	public function execute() {
	$pUser = $this->getUser();

	// Deny if the user is blocked and doesn't have the full 'userrights' permission.
	// This matches what Special:UserRights does for the web UI.
	if ( !$this->getAuthority()->isAllowed( 'userrights' ) ) {
	$block = $pUser->getBlock( IDBAccessObject::READ_LATEST );
	if ( $block && $block->isSitewide() ) {
	$this->dieBlocked( $block );
	}
	}

	$params = $this->extractRequestParams();

	// Figure out expiry times from the input
	$expiry = (array)$params['expiry'];
	$add = (array)$params['add'];
	if ( !$add ) {
	$expiry = [];
	} elseif ( count( $expiry ) !== count( $add ) ) {
	if ( count( $expiry ) === 1 ) {
	$expiry = array_fill( 0, count( $add ), $expiry[0] );
	} else {
	$this->dieWithError( [
	'apierror-toofewexpiries',
	count( $expiry ),
	count( $add )
	] );
	}
	}

	// Validate the expiries
	$groupExpiries = [];
	foreach ( $expiry as $index => $expiryValue ) {
	$group = $add[$index];
	$groupExpiries[$group] = UserGroupAssignmentService::expiryToTimestamp( $expiryValue );

	if ( $groupExpiries[$group] === false ) {
	$this->dieWithError( [ 'apierror-invalidexpiry', wfEscapeWikiText( $expiryValue ) ] );
	}

	// not allowed to have things expiring in the past
	if ( $groupExpiries[$group] && $groupExpiries[$group] < wfTimestampNow() ) {
	$this->dieWithError( [ 'apierror-pastexpiry', wfEscapeWikiText( $expiryValue ) ] );
	}
	}

	$user = $this->getUrUser( $params );

	$tags = $params['tags'];

	// Check if user can add tags
	if ( $tags !== null ) {
	$ableToTag = ChangeTags::canAddTagsAccompanyingChange( $tags, $this->getAuthority() );
	if ( !$ableToTag->isOK() ) {
	$this->dieStatus( $ableToTag );
	}
	}

	$r = [];
	$r['user'] = $user->getName();
	$r['userid'] = $user->getId( $user->getWikiId() );
	[ $r['added'], $r['removed'] ] = $this->userGroupAssignmentService->saveChangesToUserGroups(
	$this->getUser(),
	$user,
	$add,
	// Don't pass null to saveChangesToUserGroups() for array params, cast to empty array
	(array)$params['remove'],
	$groupExpiries,
	$params['reason'],
	(array)$tags
	);

	$userPage = Title::makeTitle( NS_USER, $user->getName() );
	$watchlistExpiry = $this->getExpiryFromParams( $params, $userPage, $this->getUser() );
	$watchuser = $params['watchuser'];
	if ( $watchuser && $user->getWikiId() === UserIdentity::LOCAL ) {
	$this->setWatch( 'watch', $userPage, $this->getUser(), null, $watchlistExpiry );
	} else {
	$watchuser = false;
	$watchlistExpiry = null;
	}
	$r['watchuser'] = $watchuser;
	if ( $watchlistExpiry !== null ) {
	$r['watchlistexpiry'] = $this->getWatchlistExpiry(
	$this->watchedItemStore,
	$userPage,
	$this->getUser()
	);
	}

	$result = $this->getResult();
	ApiResult::setIndexedTagName( $r['added'], 'group' );
	ApiResult::setIndexedTagName( $r['removed'], 'group' );
	$result->addValue( null, $this->getModuleName(), $r );
	}

	/**
	* @param array $params
	* @return UserIdentity
	*/
	private function getUrUser( array $params ) {
	if ( $this->mUser !== null ) {
	return $this->mUser;
	}

	$this->requireOnlyOneParameter( $params, 'user', 'userid' );

	$userDesignator = $params['user'] ?? '#' . $params['userid'];
	$status = $this->multiFormatUserIdentityLookup->getUserIdentity( $userDesignator, $this->getAuthority() );
	if ( !$status->isOK() ) {
	$this->dieStatus( $status );
	}

	$user = $status->value;
	$canHaveRights = $this->userGroupAssignmentService->targetCanHaveUserGroups( $user );
	if ( !$canHaveRights ) {
	// Return different errors for anons and temp. accounts to keep consistent behavior
	$this->dieWithError(
	$user->isRegistered() ? [ 'userrights-no-group', $user->getName() ] : 'nosuchusershort'
	);
	}

	$this->mUser = $user;

	return $user;
	}

	/** @inheritDoc */
	public function mustBePosted() {
	return true;
	}

	/** @inheritDoc */
	public function isWriteMode() {
	return true;
	}

	/** @inheritDoc */
	public function getAllowedParams( $flags = 0 ) {
	$allGroups = $this->userGroupManager->listAllGroups();

	if ( $flags & ApiBase::GET_VALUES_FOR_HELP ) {
	sort( $allGroups );
	}

	$params = [
	'user' => [
	ParamValidator::PARAM_TYPE => 'user',
	UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'id' ],
	],
	'userid' => [
	ParamValidator::PARAM_TYPE => 'integer',
	ParamValidator::PARAM_DEPRECATED => true,
	],
	'add' => [
	ParamValidator::PARAM_TYPE => $allGroups,
	ParamValidator::PARAM_ISMULTI => true
	],
	'expiry' => [
	ParamValidator::PARAM_ISMULTI => true,
	ParamValidator::PARAM_ALLOW_DUPLICATES => true,
	ParamValidator::PARAM_DEFAULT => 'infinite',
	],
	'remove' => [
	ParamValidator::PARAM_TYPE => $allGroups,
	ParamValidator::PARAM_ISMULTI => true
	],
	'reason' => [
	ParamValidator::PARAM_DEFAULT => ''
	],
	'token' => [
	// Standard definition automatically inserted
	ApiBase::PARAM_HELP_MSG_APPEND => [ 'api-help-param-token-webui' ],
	],
	'tags' => [
	ParamValidator::PARAM_TYPE => 'tags',
	ParamValidator::PARAM_ISMULTI => true
	],
	'watchuser' => false,
	];

	// Params appear in the docs in the order they are defined,
	// which is why this is here and not at the bottom.
	// @todo Find better way to support insertion at arbitrary position
	if ( $this->watchlistExpiryEnabled ) {
	$params += [
	'watchlistexpiry' => [
	ParamValidator::PARAM_TYPE => 'expiry',
	ExpiryDef::PARAM_MAX => $this->watchlistMaxDuration,
	ExpiryDef::PARAM_USE_MAX => true,
	]
	];
	}

	return $params;
	}

	/** @inheritDoc */
	public function needsToken() {
	return 'userrights';
	}

	/** @inheritDoc */
	protected function getWebUITokenSalt( array $params ) {
	return $this->getUrUser( $params )->getName();
	}

	/** @inheritDoc */
	protected function getExamplesMessages() {
	return [
	'action=userrights&user=FooBot&add=bot&remove=sysop\|bureaucrat&token=123ABC'
	=> 'apihelp-userrights-example-user',
	'action=userrights&userid=123&add=bot&remove=sysop\|bureaucrat&token=123ABC'
	=> 'apihelp-userrights-example-userid',
	'action=userrights&user=SometimeSysop&add=sysop&expiry=1%20month&token=123ABC'
	=> 'apihelp-userrights-example-expiry',
	];
	}

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

	/** @deprecated class alias since 1.43 */
	class_alias( ApiUserrights::class, 'ApiUserrights' );

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