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ChangeTagger.php
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ChangeTagger.php
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<?php
namespace MediaWiki\Extension\AbuseFilter\ChangeTags;
use MediaWiki\Extension\AbuseFilter\ActionSpecifier;
use MediaWiki\RecentChanges\RecentChange;
use MediaWiki\Title\TitleValue;
use MediaWiki\User\UserIdentityValue;
/**
* Class that collects change tags to be later applied
* @internal This interface should be improved and is not ready for external use
*/
class ChangeTagger {
public const SERVICE_NAME = 'AbuseFilterChangeTagger';
/** @var array (Persistent) map of (action ID => string[]) */
private static $tagsToSet = [];
/**
* @var ChangeTagsManager
*/
private $changeTagsManager;
/**
* @param ChangeTagsManager $changeTagsManager
*/
public function __construct( ChangeTagsManager $changeTagsManager ) {
$this->changeTagsManager = $changeTagsManager;
}
/**
* Clear any buffered tag
*/
public function clearBuffer(): void {
self::$tagsToSet = [];
}
/**
* @param ActionSpecifier $specifier
*/
public function addConditionsLimitTag( ActionSpecifier $specifier ): void {
$this->addTags( $specifier, [ $this->changeTagsManager->getCondsLimitTag() ] );
}
/**
* @param ActionSpecifier $specifier
* @param array $tags
*/
public function addTags( ActionSpecifier $specifier, array $tags ): void {
$id = $this->getActionID( $specifier );
$this->bufferTagsToSetByAction( [ $id => $tags ] );
}
/**
* @param string[][] $tagsByAction Map of (string => string[])
*/
private function bufferTagsToSetByAction( array $tagsByAction ): void {
foreach ( $tagsByAction as $actionID => $tags ) {
self::$tagsToSet[ $actionID ] = array_unique(
array_merge( self::$tagsToSet[ $actionID ] ?? [], $tags )
);
}
}
/**
* @param string $id
* @param bool $clear
* @return array
*/
private function getTagsForID( string $id, bool $clear = true ): array {
$val = self::$tagsToSet[$id] ?? [];
if ( $clear ) {
unset( self::$tagsToSet[$id] );
}
return $val;
}
/**
* @param RecentChange $recentChange
* @param bool $clear
* @return array
*/
public function getTagsForRecentChange( RecentChange $recentChange, bool $clear = true ): array {
$id = $this->getIDFromRecentChange( $recentChange );
return $this->getTagsForID( $id, $clear );
}
/**
* @param RecentChange $recentChange
* @return string
*/
private function getIDFromRecentChange( RecentChange $recentChange ): string {
$title = new TitleValue(
$recentChange->getAttribute( 'rc_namespace' ),
$recentChange->getAttribute( 'rc_title' )
);
$logType = $recentChange->getAttribute( 'rc_log_type' ) ?: 'edit';
if ( $logType === 'newusers' ) {
// XXX: as of 1.43, the following is never true
$action = $recentChange->getAttribute( 'rc_log_action' ) === 'autocreate' ?
'autocreateaccount' :
'createaccount';
} else {
$action = $logType;
}
$user = new UserIdentityValue(
$recentChange->getAttribute( 'rc_user' ),
$recentChange->getAttribute( 'rc_user_text' )
);
$specifier = new ActionSpecifier(
$action,
$title,
$user,
$recentChange->getAttribute( 'rc_ip' ) ?? '',
$user->getName()
);
return $this->getActionID( $specifier );
}
/**
* Get a unique identifier for the given action
*
* @param ActionSpecifier $specifier
* @return string
*/
private function getActionID( ActionSpecifier $specifier ): string {
$username = $specifier->getUser()->getName();
$title = $specifier->getTitle();
if ( str_contains( $specifier->getAction(), 'createaccount' ) ) {
// TODO Move this to ActionSpecifier?
$username = $specifier->getAccountName();
'@phan-var string $username';
$title = new TitleValue( NS_USER, $username );
}
// Use a character that's not allowed in titles and usernames
$glue = '|';
return implode(
$glue,
[
$title->getNamespace() . ':' . $title->getText(),
$username,
$specifier->getAction()
]
);
}
}

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ChangeTagger.php (3 KB)

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