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+<?php
+/**
+ * Scan the logging table and purge affected files within a timeframe.
+ *
+ * @section LICENSE
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script that scans the deletion log and purges affected files
+ * within a timeframe.
+ *
+ * @ingroup Maintenance
+ */
+class PurgeChangedFiles extends Maintenance {
+ /**
+ * Mapping from type option to log type and actions.
+ * @var array
+ */
+ private static $typeMappings = array(
+ 'created' => array(
+ 'upload' => array( 'upload' ),
+ 'import' => array( 'upload', 'interwiki' ),
+ ),
+ 'deleted' => array(
+ 'delete' => array( 'delete', 'revision' ),
+ 'suppress' => array( 'delete', 'revision' ),
+ ),
+ 'modified' => array(
+ 'upload' => array( 'overwrite', 'revert' ),
+ 'move' => array( 'move', 'move_redir' ),
+ ),
+ );
+
+ /**
+ * @var string
+ */
+ private $startTimestamp;
+
+ /**
+ * @var string
+ */
+ private $endTimestamp;
+
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Scan the logging table and purge files and thumbnails.";
+ $this->addOption( 'starttime', 'Starting timestamp', true, true );
+ $this->addOption( 'endtime', 'Ending timestamp', true, true );
+ $this->addOption( 'type', 'Comma-separated list of types of changes to send purges for (' .
+ implode( ',', array_keys( self::$typeMappings ) ) . ',all)', false, true );
+ $this->addOption( 'htcp-dest', 'HTCP announcement destination (IP:port)', false, true );
+ $this->addOption( 'dry-run', 'Do not send purge requests' );
+ $this->addOption( 'verbose', 'Show more output', false, false, 'v' );
+ }
+
+ public function execute() {
+ global $wgHTCPRouting;
+
+ if ( $this->hasOption( 'htcp-dest' ) ) {
+ $parts = explode( ':', $this->getOption( 'htcp-dest' ) );
+ if ( count( $parts ) < 2 ) {
+ // Add default htcp port
+ $parts[] = '4827';
+ }
+
+ // Route all HTCP messages to provided host:port
+ $wgHTCPRouting = array(
+ '' => array( 'host' => $parts[0], 'port' => $parts[1] ),
+ );
+ $this->verbose( "HTCP broadcasts to {$parts[0]}:{$parts[1]}\n" );
+ }
+
+ // Find out which actions we should be concerned with
+ $typeOpt = $this->getOption( 'type', 'all' );
+ $validTypes = array_keys( self::$typeMappings );
+ if ( $typeOpt === 'all' ) {
+ // Convert 'all' to all registered types
+ $typeOpt = implode( ',', $validTypes );
+ }
+ $typeList = explode( ',', $typeOpt );
+ foreach ( $typeList as $type ) {
+ if ( !in_array( $type, $validTypes ) ) {
+ $this->error( "\nERROR: Unknown type: {$type}\n" );
+ $this->maybeHelp( true );
+ }
+ }
+
+ // Validate the timestamps
+ $dbr = $this->getDB( DB_SLAVE );
+ $this->startTimestamp = $dbr->timestamp( $this->getOption( 'starttime' ) );
+ $this->endTimestamp = $dbr->timestamp( $this->getOption( 'endtime' ) );
+
+ if ( $this->startTimestamp > $this->endTimestamp ) {
+ $this->error( "\nERROR: starttime after endtime\n" );
+ $this->maybeHelp( true );
+ }
+
+ // Turn on verbose when dry-run is enabled
+ if ( $this->hasOption( 'dry-run' ) ) {
+ $this->mOptions['verbose'] = 1;
+ }
+
+ $this->verbose( 'Purging files that were: ' . implode( ', ', $typeList ) . "\n");
+ foreach ( $typeList as $type ) {
+ $this->verbose( "Checking for {$type} files...\n" );
+ $this->purgeFromLogType( $type );
+ if ( !$this->hasOption( 'dry-run' ) ) {
+ $this->verbose( "...{$type} files purged.\n\n" );
+ }
+ }
+ }
+
+ /**
+ * Purge cache and thumbnails for changes of the given type.
+ *
+ * @param string $type Type of change to find
+ */
+ protected function purgeFromLogType( $type ) {
+ $repo = RepoGroup::singleton()->getLocalRepo();
+ $dbr = $this->getDB( DB_SLAVE );
+
+ foreach ( self::$typeMappings[$type] as $logType => $logActions ) {
+ $this->verbose( "Scanning for {$logType}/" . implode( ',', $logActions ) . "\n" );
+
+ $res = $dbr->select(
+ 'logging',
+ array( 'log_title', 'log_timestamp', 'log_params' ),
+ array(
+ 'log_namespace' => NS_FILE,
+ 'log_type' => $logType,
+ 'log_action' => $logActions,
+ 'log_timestamp >= ' . $dbr->addQuotes( $this->startTimestamp ),
+ 'log_timestamp <= ' . $dbr->addQuotes( $this->endTimestamp ),
+ ),
+ __METHOD__
+ );
+
+ foreach ( $res as $row ) {
+ $file = $repo->newFile( Title::makeTitle( NS_FILE, $row->log_title ) );
+
+ if ( $this->hasOption( 'dry-run' ) ) {
+ $this->verbose( "{$type}[{$row->log_timestamp}]: {$row->log_title}\n" );
+ continue;
+ }
+
+ // Purge current version and any versions in oldimage table
+ $file->purgeCache();
+ $file->purgeHistory();
+
+ if ( $logType === 'delete' ) {
+ // If there is an orphaned storage file... delete it
+ if ( !$file->exists() && $repo->fileExists( $file->getPath() ) ) {
+ $dpath = $this->getDeletedPath( $repo, $file );
+ if ( $repo->fileExists( $dpath ) ) {
+ // Sanity check to avoid data loss
+ $repo->getBackend()->delete( array( 'src' => $file->getPath() ) );
+ $this->verbose( "Deleted orphan file: {$file->getPath()}.\n" );
+
+ } else {
+ $this->error( "File was not deleted: {$file->getPath()}.\n" );
+ }
+ }
+
+ // Purge items from fileachive table (rows are likely here)
+ $this->purgeFromArchiveTable( $repo, $file );
+
+ } else if ( $logType === 'move' ) {
+ // Purge the target file as well
+
+ $params = unserialize( $row->log_params );
+ if ( isset( $params['4::target'] ) ) {
+ $target = $params['4::target'];
+ $targetFile = $repo->newFile( Title::makeTitle( NS_FILE, $target ) );
+ $targetFile->purgeCache();
+ $targetFile->purgeHistory();
+ $this->verbose( "Purged file {$target}; move target @{$row->log_timestamp}.\n" );
+ }
+ }
+
+ $this->verbose( "Purged file {$row->log_title}; {$type} @{$row->log_timestamp}.\n" );
+ }
+ }
+ }
+
+ protected function purgeFromArchiveTable( LocalRepo $repo, LocalFile $file ) {
+ $dbr = $repo->getSlaveDB();
+ $res = $dbr->select(
+ 'filearchive',
+ array( 'fa_archive_name' ),
+ array( 'fa_name' => $file->getName() ),
+ __METHOD__
+ );
+
+ foreach ( $res as $row ) {
+ if ( $row->fa_archive_name === null ) {
+ // Was not an old version (current version names checked already)
+ continue;
+ }
+ $ofile = $repo->newFromArchiveName( $file->getTitle(), $row->fa_archive_name );
+ // If there is an orphaned storage file still there...delete it
+ if ( !$file->exists() && $repo->fileExists( $ofile->getPath() ) ) {
+ $dpath = $this->getDeletedPath( $repo, $ofile );
+ if ( $repo->fileExists( $dpath ) ) {
+ // Sanity check to avoid data loss
+ $repo->getBackend()->delete( array( 'src' => $ofile->getPath() ) );
+ $this->output( "Deleted orphan file: {$ofile->getPath()}.\n" );
+
+ } else {
+ $this->error( "File was not deleted: {$ofile->getPath()}.\n" );
+ }
+ }
+ $file->purgeOldThumbnails( $row->fa_archive_name );
+ }
+ }
+
+ protected function getDeletedPath( LocalRepo $repo, LocalFile $file ) {
+ $hash = $repo->getFileSha1( $file->getPath() );
+ $key = "{$hash}.{$file->getExtension()}";
+ return $repo->getDeletedHashPath( $key ) . $key;
+ }
+
+ /**
+ * Send an output message iff the 'verbose' option has been provided.
+ *
+ * @param string $msg Message to output
+ */
+ protected function verbose( $msg ) {
+ if ( $this->hasOption( 'verbose' ) ) {
+ $this->output( $msg );
+ }
+ }
+
+}
+
+$maintClass = "PurgeChangedFiles";
+require_once RUN_MAINTENANCE_IF_MAIN;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-27 08:01:50 +0000