SetAliases::adjustSummary()   A
last analyzed

Complexity

Conditions 4
Paths 3

Size

Total Lines 16

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 16
rs 9.7333
c 0
b 0
f 0
cc 4
nc 3
nop 3
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<?php
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declare( strict_types = 1 );
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namespace Wikibase\Repo\Api;
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use ApiMain;
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use ApiUsageException;
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use IBufferingStatsdDataFactory;
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use Wikibase\DataModel\Entity\EntityDocument;
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use Wikibase\DataModel\Term\AliasesProvider;
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use Wikibase\Lib\Summary;
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use Wikibase\Repo\ChangeOp\ChangeOp;
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use Wikibase\Repo\ChangeOp\ChangeOps;
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use Wikibase\Repo\ChangeOp\FingerprintChangeOpFactory;
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use Wikibase\Repo\WikibaseRepo;
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/**
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 * API module to set the aliases for a Wikibase entity.
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 * Requires API write mode to be enabled.
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 *
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 * @license GPL-2.0-or-later
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 */
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class SetAliases extends ModifyEntity {
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	/**
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	 * @var FingerprintChangeOpFactory
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	 */
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	private $termChangeOpFactory;
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	/** @var IBufferingStatsdDataFactory */
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	private $stats;
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	public function __construct(
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		ApiMain $mainModule,
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		string $moduleName,
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		FingerprintChangeOpFactory $termChangeOpFactory,
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		IBufferingStatsdDataFactory $stats,
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		bool $federatedPropertiesEnabled
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	) {
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		parent::__construct( $mainModule, $moduleName, $federatedPropertiesEnabled );
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		$this->termChangeOpFactory = $termChangeOpFactory;
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		$this->stats = $stats;
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	}
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	public static function factory( ApiMain $mainModule, string $moduleName, IBufferingStatsdDataFactory $stats ): self {
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		$wikibaseRepo = WikibaseRepo::getDefaultInstance();
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		return new self(
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			$mainModule,
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			$moduleName,
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			$wikibaseRepo->getChangeOpFactoryProvider()
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				->getFingerprintChangeOpFactory(),
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			$stats,
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			$wikibaseRepo->inFederatedPropertyMode()
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		);
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	}
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	/**
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	 * @see ApiBase::needsToken
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	 *
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	 * @return string
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	 */
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	public function needsToken(): string {
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		return 'csrf';
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	}
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	/**
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	 * @see ApiBase::isWriteMode()
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	 *
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	 * @return bool Always true.
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	 */
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	public function isWriteMode(): bool {
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		return true;
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	}
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	/**
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	 * @see ModifyEntity::validateParameters
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	 *
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	 * @param array $params
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	 *
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	 * @throws ApiUsageException
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	 */
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	protected function validateParameters( array $params ): void {
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		parent::validateParameters( $params );
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		if ( !( ( !empty( $params['add'] ) || !empty( $params['remove'] ) )
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			xor isset( $params['set'] )
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		) ) {
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			$this->errorReporter->dieError(
0 ignored issues
show
Deprecated Code introduced by
The method Wikibase\Repo\Api\ApiErrorReporter::dieError() has been deprecated with message: Use dieWithError() instead.

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

Loading history...
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				"Parameters 'add' and 'remove' are not allowed to be set when parameter 'set' is provided",
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				'invalid-list'
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			);
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		}
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	}
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	private function adjustSummary( Summary $summary, array $params, AliasesProvider $entity ): void {
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		if ( !empty( $params['add'] ) && !empty( $params['remove'] ) ) {
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			$language = $params['language'];
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			$aliasGroups = $entity->getAliasGroups();
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			$summary->setAction( 'update' );
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			$summary->setLanguage( $language );
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			// Get the full list of current aliases
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			if ( $aliasGroups->hasGroupForLanguage( $language ) ) {
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				$aliases = $aliasGroups->getByLanguage( $language )->getAliases();
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				$summary->addAutoSummaryArgs( $aliases );
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			}
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		}
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	}
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	protected function modifyEntity( EntityDocument $entity, ChangeOp $changeOp, array $preparedParameters ): Summary {
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		if ( !( $entity instanceof AliasesProvider ) ) {
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			$this->errorReporter->dieError( 'The given entity cannot contain aliases', 'not-supported' );
0 ignored issues
show
Deprecated Code introduced by
The method Wikibase\Repo\Api\ApiErrorReporter::dieError() has been deprecated with message: Use dieWithError() instead.

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

Loading history...
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		}
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		$language = $preparedParameters['language'];
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		// FIXME: if we have ADD and REMOVE operations in the same call,
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		// we will also have two ChangeOps updating the same edit summary.
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		// This will cause the edit summary to be overwritten by the last ChangeOp being applied.
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		$this->stats->increment( 'wikibase.repo.api.wbsetaliases.total' );
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		if ( !empty( $preparedParameters['add'] ) && !empty( $preparedParameters['remove'] ) ) {
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			$this->stats->increment( 'wikibase.repo.api.wbsetaliases.addremove' );
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		}
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		$summary = $this->createSummary( $preparedParameters );
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		$this->applyChangeOp( $changeOp, $entity, $summary );
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		$this->adjustSummary( $summary, $preparedParameters, $entity );
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		$aliasGroups = $entity->getAliasGroups();
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface Wikibase\DataModel\Entity\EntityDocument as the method getAliasGroups() does only exist in the following implementations of said interface: Wikibase\DataModel\Entity\Item, Wikibase\DataModel\Entity\Property.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
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		if ( $aliasGroups->hasGroupForLanguage( $language ) ) {
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			$aliasGroupList = $aliasGroups->getWithLanguages( [ $language ] );
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			$this->getResultBuilder()->addAliasGroupList( $aliasGroupList, 'entity' );
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		}
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		return $summary;
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	}
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	/**
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	 * @param string[] $aliases
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	 *
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	 * @return string[]
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	 */
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	private function normalizeAliases( array $aliases ): array {
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		$stringNormalizer = $this->stringNormalizer;
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		$aliases = array_map(
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			function( $str ) use ( $stringNormalizer ) {
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				return $stringNormalizer->trimToNFC( $str );
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			},
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			$aliases
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		);
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		$aliases = array_filter(
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			$aliases,
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			function( $str ) {
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				return $str !== '';
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			}
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		);
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		return $aliases;
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	}
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	protected function getChangeOp( array $preparedParameters, EntityDocument $entity ): ChangeOp {
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		$changeOps = [];
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		$language = $preparedParameters['language'];
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		// Set the list of aliases to a user given one OR add/ remove certain entries
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		if ( isset( $preparedParameters['set'] ) ) {
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			$changeOps[] =
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				$this->termChangeOpFactory->newSetAliasesOp(
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					$language,
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					$this->normalizeAliases( $preparedParameters['set'] )
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				);
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		} else {
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			// FIXME: if we have ADD and REMOVE operations in the same call,
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			// we will also have two ChangeOps updating the same edit summary.
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			// This will cause the edit summary to be overwritten by the last ChangeOp beeing applied.
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			if ( !empty( $preparedParameters['add'] ) ) {
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				$changeOps[] =
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					$this->termChangeOpFactory->newAddAliasesOp(
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						$language,
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						$this->normalizeAliases( $preparedParameters['add'] )
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					);
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			}
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			if ( !empty( $preparedParameters['remove'] ) ) {
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				$changeOps[] =
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					$this->termChangeOpFactory->newRemoveAliasesOp(
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						$language,
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						$this->normalizeAliases( $preparedParameters['remove'] )
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					);
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			}
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		}
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		return $this->termChangeOpFactory->newFingerprintChangeOp( new ChangeOps( $changeOps ) );
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	}
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	/**
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	 * @inheritDoc
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	 */
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	protected function getAllowedParams(): array {
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		return array_merge(
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			parent::getAllowedParams(),
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			[
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				'add' => [
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					self::PARAM_TYPE => 'string',
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					self::PARAM_ISMULTI => true,
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				],
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				'remove' => [
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					self::PARAM_TYPE => 'string',
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					self::PARAM_ISMULTI => true,
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				],
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				'set' => [
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					self::PARAM_TYPE => 'string',
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					self::PARAM_ISMULTI => true,
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				],
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				'language' => [
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					self::PARAM_TYPE => WikibaseRepo::getDefaultInstance()->getTermsLanguages()->getLanguages(),
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					self::PARAM_REQUIRED => true,
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				],
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				'new' => [
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					self::PARAM_TYPE => $this->getEntityTypesWithAliases(),
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				],
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			]
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		);
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	}
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	protected function getEntityTypesWithAliases(): array {
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		// TODO inject me
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		$entityFactory = WikibaseRepo::getDefaultInstance()->getEntityFactory();
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		$supportedEntityTypes = [];
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		foreach ( $this->enabledEntityTypes as $entityType ) {
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			$testEntity = $entityFactory->newEmpty( $entityType );
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			if ( $testEntity instanceof AliasesProvider ) {
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				$supportedEntityTypes[] = $entityType;
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			}
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		}
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		return $supportedEntityTypes;
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	}
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	/**
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	 * @inheritDoc
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	 */
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	protected function getExamplesMessages(): array {
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		return [
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			'action=wbsetaliases&language=en&id=Q1&set=Foo|Bar'
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				=> 'apihelp-wbsetaliases-example-1',
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			'action=wbsetaliases&language=en&id=Q1&add=Foo|Bar'
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				=> 'apihelp-wbsetaliases-example-2',
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			'action=wbsetaliases&language=en&id=Q1&remove=Foo|Bar'
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				=> 'apihelp-wbsetaliases-example-3',
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			'action=wbsetaliases&language=en&id=Q1&remove=Foo&add=Bar'
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				=> 'apihelp-wbsetaliases-example-4',
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		];
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	}
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}
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