106 lines
3.2 KiB
PHP
106 lines
3.2 KiB
PHP
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<?php
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namespace MediaWiki\Maintenance;
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use LoggedUpdateMaintenance;
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use Wikimedia\Rdbms\IExpression;
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use Wikimedia\Rdbms\LikeValue;
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use Wikimedia\Rdbms\SelectQueryBuilder;
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// @codeCoverageIgnoreStart
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require_once __DIR__ . '/Maintenance.php';
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// @codeCoverageIgnoreEnd
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class FixAutoblockLogTitles extends LoggedUpdateMaintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription(
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'Finds and fixes unblock log rows in the logging table where the log_title starts with the ' .
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'prefix "User:#". These rows are broken because the target is an autoblock and code expects the "#" ' .
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'character to be the first character in the title (T373929).'
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);
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$this->setBatchSize( 200 );
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}
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protected function doDBUpdates() {
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$this->output( "Fixing log entries with log_title starting with 'User:#'\n" );
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$dbr = $this->getReplicaDB();
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$dbw = $this->getPrimaryDB();
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$totalRowsFixed = 0;
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$lastProcessedLogId = 0;
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do {
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// Get a batch of "unblock" log entries from the logging table. The check for the log_title being broken
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// needs to be performed in batches, as it is expensive when run on the whole logging table on large wikis.
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$logIds = $dbr->newSelectQueryBuilder()
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->select( 'log_id' )
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->from( 'logging' )
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->where( [
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'log_type' => 'block',
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'log_action' => 'unblock',
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$dbr->expr( 'log_id', '>', $lastProcessedLogId ),
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] )
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->limit( $this->getBatchSize() )
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->orderBy( 'log_id', SelectQueryBuilder::SORT_ASC )
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->caller( __METHOD__ )
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->fetchFieldValues();
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if ( count( $logIds ) ) {
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$lastId = end( $logIds );
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$firstId = reset( $logIds );
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$this->output( "...Processing unblock rows with IDs $firstId to $lastId\n" );
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// Apply the LIKE query to find the rows with broken log_title values on the batch of log IDs.
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// If any rows are found, then fix the log_title value.
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$matchingRows = $dbr->newSelectQueryBuilder()
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->select( [ 'log_id', 'log_title' ] )
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->from( 'logging' )
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->where( $dbr->expr(
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'log_title',
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IExpression::LIKE,
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new LikeValue( 'User:#', $dbr->anyString() )
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) )
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->andWhere( [ 'log_id' => $logIds ] )
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->limit( $this->getBatchSize() )
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->caller( __METHOD__ )
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->fetchResultSet();
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foreach ( $matchingRows as $row ) {
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$dbw->newUpdateQueryBuilder()
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->update( 'logging' )
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->set( [ 'log_title' => substr( $row->log_title, strlen( 'User:' ) ) ] )
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->where( [ 'log_id' => $row->log_id ] )
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->caller( __METHOD__ )
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->execute();
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$totalRowsFixed += $dbw->affectedRows();
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}
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$this->waitForReplication();
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}
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$lastProcessedLogId = end( $logIds );
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} while ( count( $logIds ) );
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// Say we are done. Only output the total rows fixed if we found rows to fix, otherwise it may be confusing
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// to see that no rows were fixed (and might imply that there are still rows to fix).
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$this->output( "done." );
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if ( $totalRowsFixed ) {
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$this->output( " Fixed $totalRowsFixed rows." );
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}
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$this->output( "\n" );
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return true;
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}
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protected function getUpdateKey() {
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return __CLASS__;
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}
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}
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// @codeCoverageIgnoreStart
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$maintClass = FixAutoblockLogTitles::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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// @codeCoverageIgnoreEnd
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