ApiBlock.php

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<?php
namespace MediaWiki\Api;
 
use MediaWiki\Block\AbstractBlock;
use MediaWiki\Block\BlockActionInfo;
use MediaWiki\Block\BlockPermissionCheckerFactory;
use MediaWiki\Block\BlockTarget;
use MediaWiki\Block\BlockTargetFactory;
use MediaWiki\Block\BlockUser;
use MediaWiki\Block\BlockUserFactory;
use MediaWiki\Block\DatabaseBlock;
use MediaWiki\Block\DatabaseBlockStore;
use MediaWiki\Block\Restriction\ActionRestriction;
use MediaWiki\Block\Restriction\NamespaceRestriction;
use MediaWiki\Block\Restriction\PageRestriction;
use MediaWiki\Block\Restriction\Restriction;
use MediaWiki\MainConfigNames;
use MediaWiki\ParamValidator\TypeDef\TitleDef;
use MediaWiki\ParamValidator\TypeDef\UserDef;
use MediaWiki\Status\Status;
use MediaWiki\Title\Title;
use MediaWiki\Title\TitleFactory;
use MediaWiki\User\Options\UserOptionsLookup;
use MediaWiki\User\UserIdentityLookup;
use MediaWiki\Watchlist\WatchedItemStoreInterface;
use MediaWiki\Watchlist\WatchlistManager;
use RuntimeException;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\ParamValidator\TypeDef\ExpiryDef;
 
class ApiBlock extends ApiBase {
 
    use ApiWatchlistTrait;
 
    private BlockPermissionCheckerFactory $blockPermissionCheckerFactory;
    private BlockUserFactory $blockUserFactory;
    private TitleFactory $titleFactory;
    private UserIdentityLookup $userIdentityLookup;
    private WatchedItemStoreInterface $watchedItemStore;
    private BlockActionInfo $blockActionInfo;
    private DatabaseBlockStore $blockStore;
    private BlockTargetFactory $blockTargetFactory;
 
    public function __construct(
        ApiMain $main,
        string $action,
        BlockPermissionCheckerFactory $blockPermissionCheckerFactory,
        BlockUserFactory $blockUserFactory,
        TitleFactory $titleFactory,
        UserIdentityLookup $userIdentityLookup,
        WatchedItemStoreInterface $watchedItemStore,
        BlockTargetFactory $blockTargetFactory,
        BlockActionInfo $blockActionInfo,
        DatabaseBlockStore $blockStore,
        WatchlistManager $watchlistManager,
        UserOptionsLookup $userOptionsLookup
    ) {
        parent::__construct( $main, $action );
 
        $this->blockPermissionCheckerFactory = $blockPermissionCheckerFactory;
        $this->blockUserFactory = $blockUserFactory;
        $this->titleFactory = $titleFactory;
        $this->userIdentityLookup = $userIdentityLookup;
        $this->watchedItemStore = $watchedItemStore;
        $this->blockTargetFactory = $blockTargetFactory;
        $this->blockActionInfo = $blockActionInfo;
        $this->blockStore = $blockStore;
 
        // 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;
    }
 
    public function execute() {
        $this->checkUserRightsAny( 'block' );
        $params = $this->extractRequestParams();
        $this->requireOnlyOneParameter( $params, 'id', 'user', 'userid' );
        $this->requireNoConflictingParameters( $params,
            'id', [ 'newblock', 'reblock' ] );
 
        if ( $params['id'] !== null ) {
            $block = $this->blockStore->newFromID( $params['id'], true );
            if ( !$block ) {
                $this->dieWithError(
                    [ 'apierror-nosuchblockid', $params['id'] ],
                    'nosuchblockid' );
            }
            if ( $block->getType() === AbstractBlock::TYPE_AUTO ) {
                $this->dieWithError( 'apierror-modify-autoblock' );
            }
            $status = $this->updateBlock( $block, $params );
        } else {
            if ( $params['user'] !== null ) {
                $target = $this->blockTargetFactory->newFromUser( $params['user'] );
            } else {
                $targetUser = $this->userIdentityLookup->getUserIdentityByUserId( $params['userid'] );
                if ( !$targetUser ) {
                    $this->dieWithError( [ 'apierror-nosuchuserid', $params['userid'] ], 'nosuchuserid' );
                }
                $target = $this->blockTargetFactory->newUserBlockTarget( $targetUser );
            }
            if ( $params['newblock'] ) {
                $status = $this->insertBlock( $target, $params );
            } else {
                $blocks = $this->blockStore->newListFromTarget(
                    $target, null, false, DatabaseBlockStore::AUTO_NONE );
                if ( count( $blocks ) === 0 ) {
                    $status = $this->insertBlock( $target, $params );
                } elseif ( count( $blocks ) === 1 ) {
                    if ( $params['reblock'] ) {
                        $status = $this->updateBlock( $blocks[0], $params );
                    } else {
                        $status = Status::newFatal( 'ipb_already_blocked', $blocks[0]->getTargetName() );
                    }
                } else {
                    $this->dieWithError( 'apierror-ambiguous-block', 'ambiguous-block' );
                }
            }
        }
 
        if ( !$status->isOK() ) {
            $this->dieStatus( $status );
        }
 
        $block = $status->value;
        if ( !( $block instanceof DatabaseBlock ) ) {
            throw new RuntimeException( "Unexpected block class" );
        }
 
        $watchlistExpiry = $this->getExpiryFromParams( $params );
        $userPage = Title::makeTitle( NS_USER, $block->getTargetName() );
 
        if ( $params['watchuser'] && $block->getType() !== AbstractBlock::TYPE_RANGE ) {
            $this->setWatch( 'watch', $userPage, $this->getUser(), null, $watchlistExpiry );
        }
 
        $res = [];
 
        $res['user'] = $block->getTargetName();
 
        $blockedUser = $block->getTargetUserIdentity();
        $res['userID'] = $blockedUser ? $blockedUser->getId() : 0;
 
        $res['expiry'] = ApiResult::formatExpiry( $block->getExpiry(), 'infinite' );
        $res['id'] = $block->getId();
 
        $res['reason'] = $params['reason'];
        $res['anononly'] = $params['anononly'];
        $res['nocreate'] = $params['nocreate'];
        $res['autoblock'] = $params['autoblock'];
        $res['noemail'] = $params['noemail'];
        $res['hidename'] = $block->getHideName();
        $res['allowusertalk'] = $params['allowusertalk'];
        $res['watchuser'] = $params['watchuser'];
        if ( $watchlistExpiry ) {
            $expiry = $this->getWatchlistExpiry(
                $this->watchedItemStore,
                $userPage,
                $this->getUser()
            );
            $res['watchlistexpiry'] = $expiry;
        }
        $res['partial'] = $params['partial'];
        $res['pagerestrictions'] = $params['pagerestrictions'];
        $res['namespacerestrictions'] = $params['namespacerestrictions'];
        if ( $this->getConfig()->get( MainConfigNames::EnablePartialActionBlocks ) ) {
            $res['actionrestrictions'] = $params['actionrestrictions'];
        }
 
        $this->getResult()->addValue( null, $this->getModuleName(), $res );
    }
 
    private function getBlockOptions( $params ) {
        return [
            'isCreateAccountBlocked' => $params['nocreate'],
            'isEmailBlocked' => $params['noemail'],
            'isHardBlock' => !$params['anononly'],
            'isAutoblocking' => $params['autoblock'],
            'isUserTalkEditBlocked' => !$params['allowusertalk'],
            'isHideUser' => $params['hidename'],
            'isPartial' => $params['partial'],
        ];
    }
 
    private function getRestrictions( $params ) {
        $restrictions = [];
        if ( $params['partial'] ) {
            $pageRestrictions = array_map(
                [ PageRestriction::class, 'newFromTitle' ],
                (array)$params['pagerestrictions']
            );
 
            $namespaceRestrictions = array_map( static function ( $id ) {
                return new NamespaceRestriction( 0, $id );
            }, (array)$params['namespacerestrictions'] );
            $restrictions = array_merge( $pageRestrictions, $namespaceRestrictions );
 
            if ( $this->getConfig()->get( MainConfigNames::EnablePartialActionBlocks ) ) {
                $actionRestrictions = array_map( function ( $action ) {
                    return new ActionRestriction( 0, $this->blockActionInfo->getIdFromAction( $action ) );
                }, (array)$params['actionrestrictions'] );
                $restrictions = array_merge( $restrictions, $actionRestrictions );
            }
        }
        return $restrictions;
    }
 
    private function checkEmailPermissions( $params ) {
        if (
            $params['noemail'] &&
            !$this->blockPermissionCheckerFactory
                ->newChecker( $this->getAuthority() )
                ->checkEmailPermissions()
        ) {
            $this->dieWithError( 'apierror-cantblock-email' );
        }
    }
 
    private function updateBlock( DatabaseBlock $block, $params ) {
        $this->checkEmailPermissions( $params );
        return $this->blockUserFactory->newUpdateBlock(
            $block,
            $this->getAuthority(),
            $params['expiry'],
            $params['reason'],
            $this->getBlockOptions( $params ),
            $this->getRestrictions( $params ),
            $params['tags']
        )->placeBlock();
    }
 
    private function insertBlock( $target, $params ) {
        $this->checkEmailPermissions( $params );
        return $this->blockUserFactory->newBlockUser(
            $target,
            $this->getAuthority(),
            $params['expiry'],
            $params['reason'],
            $this->getBlockOptions( $params ),
            $this->getRestrictions( $params ),
            $params['tags']
        )->placeBlock( $params['newblock'] ? BlockUser::CONFLICT_NEW : BlockUser::CONFLICT_FAIL );
    }
 
    public function mustBePosted() {
        return true;
    }
 
    public function isWriteMode() {
        return true;
    }
 
    public function getAllowedParams() {
        $params = [
            'id' => [ ParamValidator::PARAM_TYPE => 'integer' ],
            'user' => [
                ParamValidator::PARAM_TYPE => 'user',
                UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'temp', 'cidr', 'id' ],
                UserDef::PARAM_RETURN_OBJECT => true,
            ],
            'userid' => [
                ParamValidator::PARAM_TYPE => 'integer',
                ParamValidator::PARAM_DEPRECATED => true,
            ],
            'expiry' => 'never',
            'reason' => '',
            'anononly' => false,
            'nocreate' => false,
            'autoblock' => false,
            'noemail' => false,
            'hidename' => false,
            'allowusertalk' => false,
            'reblock' => false,
            'newblock' => false,
            'watchuser' => false,
        ];
 
        // Params appear in the docs in the order they are defined,
        // which is why this is here and not at the bottom.
        if ( $this->watchlistExpiryEnabled ) {
            $params += [
                'watchlistexpiry' => [
                    ParamValidator::PARAM_TYPE => 'expiry',
                    ExpiryDef::PARAM_MAX => $this->watchlistMaxDuration,
                    ExpiryDef::PARAM_USE_MAX => true,
                ]
            ];
        }
 
        $pageLimit = $this->getConfig()->get( MainConfigNames::EnableMultiBlocks ) ? 50 : 10;
 
        $params += [
            'tags' => [
                ParamValidator::PARAM_TYPE => 'tags',
                ParamValidator::PARAM_ISMULTI => true,
            ],
            'partial' => false,
            'pagerestrictions' => [
                ParamValidator::PARAM_TYPE => 'title',
                TitleDef::PARAM_MUST_EXIST => true,
 
                // TODO: TitleDef returns instances of TitleValue when PARAM_RETURN_OBJECT is
                // truthy. At the time of writing,
                // MediaWiki\Block\Restriction\PageRestriction::newFromTitle accepts either
                // string or instance of Title.
                //TitleDef::PARAM_RETURN_OBJECT => true,
 
                ParamValidator::PARAM_ISMULTI => true,
                ParamValidator::PARAM_ISMULTI_LIMIT1 => $pageLimit,
                ParamValidator::PARAM_ISMULTI_LIMIT2 => $pageLimit,
            ],
            'namespacerestrictions' => [
                ParamValidator::PARAM_ISMULTI => true,
                ParamValidator::PARAM_TYPE => 'namespace',
            ],
        ];
 
        if ( $this->getConfig()->get( MainConfigNames::EnablePartialActionBlocks ) ) {
            $params += [
                'actionrestrictions' => [
                    ParamValidator::PARAM_ISMULTI => true,
                    ParamValidator::PARAM_TYPE => array_keys(
                        $this->blockActionInfo->getAllBlockActions()
                    ),
                ],
            ];
        }
 
        return $params;
    }
 
    public function needsToken() {
        return 'csrf';
    }
 
    protected function getExamplesMessages() {
        // phpcs:disable Generic.Files.LineLength
        return [
            'action=block&user=192.0.2.5&expiry=3%20days&reason=First%20strike&token=123ABC'
                => 'apihelp-block-example-ip-simple',
            'action=block&user=Vandal&expiry=never&reason=Vandalism&nocreate=&autoblock=&noemail=&token=123ABC'
                => 'apihelp-block-example-user-complex',
        ];
        // phpcs:enable
    }
 
    public function getHelpUrls() {
        return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Block';
    }
}
 
class_alias( ApiBlock::class, 'ApiBlock' );