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| 1 | <?php |
| 2 | /** |
| 3 | * Delete self-references to $wgServer from the externallinks table. |
| 4 | * |
| 5 | * @license GPL-2.0-or-later |
| 6 | * @file |
| 7 | * @ingroup Maintenance |
| 8 | */ |
| 9 | |
| 10 | use MediaWiki\Deferred\LinksUpdate\ExternalLinksTable; |
| 11 | use MediaWiki\ExternalLinks\LinkFilter; |
| 12 | use MediaWiki\MainConfigNames; |
| 13 | use MediaWiki\Maintenance\Maintenance; |
| 14 | |
| 15 | // @codeCoverageIgnoreStart |
| 16 | require_once __DIR__ . '/Maintenance.php'; |
| 17 | // @codeCoverageIgnoreEnd |
| 18 | |
| 19 | /** |
| 20 | * Maintenance script that deletes self-references to $wgServer |
| 21 | * from the externallinks table. |
| 22 | * |
| 23 | * @ingroup Maintenance |
| 24 | */ |
| 25 | class DeleteSelfExternals extends Maintenance { |
| 26 | public function __construct() { |
| 27 | parent::__construct(); |
| 28 | $this->addDescription( 'Delete self-references to $wgServer from externallinks' ); |
| 29 | $this->setBatchSize( 1000 ); |
| 30 | } |
| 31 | |
| 32 | public function execute() { |
| 33 | // Extract the host and scheme from $wgServer |
| 34 | $server = $this->getConfig()->get( MainConfigNames::Server ); |
| 35 | $bits = $this->getServiceContainer()->getUrlUtils()->parse( $server ); |
| 36 | if ( !$bits ) { |
| 37 | $this->fatalError( 'Could not parse $wgServer' ); |
| 38 | } |
| 39 | |
| 40 | $this->output( "Deleting self externals from $server\n" ); |
| 41 | $db = $this->getServiceContainer()->getConnectionProvider()->getPrimaryDatabase( |
| 42 | ExternalLinksTable::VIRTUAL_DOMAIN |
| 43 | ); |
| 44 | |
| 45 | // If it's protocol-relative, we need to do both http and https. |
| 46 | // Otherwise, just do the specified scheme. |
| 47 | $host = $bits['host']; |
| 48 | if ( isset( $bits['port'] ) ) { |
| 49 | $host .= ':' . $bits['port']; |
| 50 | } |
| 51 | if ( $bits['scheme'] != '' ) { |
| 52 | $conds = [ LinkFilter::getQueryConditions( $host, [ 'protocol' => $bits['scheme'] . '://' ] ) ]; |
| 53 | } else { |
| 54 | $conds = [ |
| 55 | LinkFilter::getQueryConditions( $host, [ 'protocol' => 'http://' ] ), |
| 56 | LinkFilter::getQueryConditions( $host, [ 'protocol' => 'https://' ] ), |
| 57 | ]; |
| 58 | } |
| 59 | |
| 60 | // Convert the array of $conds into an IExpression object for use in the DELETE query |
| 61 | // The use of array_filter is just there for a sanity check, as LinkFilter::getQueryConditions |
| 62 | // only returns false if the host was invalid (we have already validated this above). |
| 63 | $conds = array_map( static function ( $cond ) use ( $db ) { |
| 64 | return $db->andExpr( $cond ); |
| 65 | }, array_filter( $conds ) ); |
| 66 | $domainExpr = $db->orExpr( $conds ); |
| 67 | |
| 68 | $totalRows = 0; |
| 69 | $batchStart = 0; |
| 70 | $batchEnd = $batchStart + $this->getBatchSize(); |
| 71 | do { |
| 72 | $this->output( "Deleting self-externals with el_id $batchStart to $batchEnd\n" ); |
| 73 | |
| 74 | $db->newDeleteQueryBuilder() |
| 75 | ->deleteFrom( 'externallinks' ) |
| 76 | ->where( $domainExpr ) |
| 77 | ->andWhere( $db->expr( 'el_id', '>', $batchStart ) ) |
| 78 | ->andWhere( $db->expr( 'el_id', '<=', $batchEnd ) ) |
| 79 | ->caller( __METHOD__ ) |
| 80 | ->execute(); |
| 81 | $rowsDeletedInThisBatch = $db->affectedRows(); |
| 82 | $totalRows += $rowsDeletedInThisBatch; |
| 83 | |
| 84 | $batchStart += $this->getBatchSize(); |
| 85 | $batchEnd += $this->getBatchSize(); |
| 86 | $this->waitForReplication(); |
| 87 | } while ( $rowsDeletedInThisBatch ); |
| 88 | |
| 89 | $this->output( "done; deleted $totalRows rows\n" ); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | // @codeCoverageIgnoreStart |
| 94 | $maintClass = DeleteSelfExternals::class; |
| 95 | require_once RUN_MAINTENANCE_IF_MAIN; |
| 96 | // @codeCoverageIgnoreEnd |