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RecentChangeSaveHandler.php
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RecentChangeSaveHandler.php
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<?php
namespace MediaWiki\CheckUser\HookHandler;
use JobQueueGroup;
use JobSpecification;
use MediaWiki\CheckUser\Services\CheckUserInsert;
use MediaWiki\Hook\RecentChange_saveHook;
use Wikimedia\Rdbms\IConnectionProvider;
class RecentChangeSaveHandler implements RecentChange_saveHook {
private CheckUserInsert $checkUserInsert;
private JobQueueGroup $jobQueueGroup;
private IConnectionProvider $dbProvider;
public function __construct(
CheckUserInsert $checkUserInsert,
JobQueueGroup $jobQueueGroup,
IConnectionProvider $dbProvider
) {
$this->checkUserInsert = $checkUserInsert;
$this->jobQueueGroup = $jobQueueGroup;
$this->dbProvider = $dbProvider;
}
/**
* Add CheckUser events (edits, log entries, etc.) to the database by listening for entries being added to
* Special:RecentChanges. This gets most of the entries stored by CheckUser into the CheckUser result tables.
*
* @inheritDoc
*/
public function onRecentChange_save( $recentChange ) {
$this->checkUserInsert->updateCheckUserData( $recentChange );
$this->maybePruneIPData();
}
/**
* Calls mt_rand with the given parameters. This is a wrapper method to allow mocking in unit tests.
*
* @param int $min See docs for inbuilt mt_rand
* @param int $max See docs for inbuilt mt_rand
* @return int See docs for inbuilt mt_rand
*/
protected function mtRand( int $min, int $max ): int {
return mt_rand( $min, $max );
}
/**
* Hook function to prune data from the cu_changes table
*
* The chance of actually pruning data is 1/10.
*/
private function maybePruneIPData() {
if ( $this->mtRand( 0, 9 ) == 0 ) {
$this->pruneIPData();
}
}
/**
* Prunes at most 500 entries from the cu_changes,
* cu_private_event, and cu_log_event tables separately
* that have exceeded the maximum time that they can
* be stored.
*/
private function pruneIPData() {
$this->jobQueueGroup->push(
new JobSpecification(
'checkuserPruneCheckUserDataJob',
[ 'domainID' => $this->dbProvider->getReplicaDatabase()->getDomainID() ],
[],
null
)
);
}
}

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RecentChangeSaveHandler.php (2 KB)

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