<?php
/**
+ * Get the text of a revision, resolving external storage if needed.
+ *
* 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
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
+ * @file
* @ingroup Maintenance ExternalStorage
*/
-require_once( __DIR__ . '/../Maintenance.php' );
+use MediaWiki\MediaWikiServices;
+
+require_once __DIR__ . '/../Maintenance.php';
+/**
+ * Maintenance script that gets the text of a revision,
+ * resolving external storage if needed.
+ *
+ * @ingroup Maintenance ExternalStorage
+ */
class DumpRev extends Maintenance {
public function __construct() {
parent::__construct();
}
public function execute() {
- $dbr = wfGetDB( DB_SLAVE );
- $row = $dbr->selectRow(
- array( 'text', 'revision' ),
- array( 'old_flags', 'old_text' ),
- array( 'old_id=rev_text_id', 'rev_id' => $this->getArg() )
- );
- if ( !$row ) {
- $this->error( "Row not found", true );
- }
+ $id = (int)$this->getArg();
- $flags = explode( ',', $row->old_flags );
- $text = $row->old_text;
- if ( in_array( 'external', $flags ) ) {
- $this->output( "External $text\n" );
- if ( preg_match( '!^DB://(\w+)/(\w+)/(\w+)$!', $text, $m ) ) {
- $es = ExternalStore::getStoreObject( 'DB' );
- $blob = $es->fetchBlob( $m[1], $m[2], $m[3] );
- if ( strtolower( get_class( $blob ) ) == 'concatenatedgziphistoryblob' ) {
- $this->output( "Found external CGZ\n" );
- $blob->uncompress();
- $this->output( "Items: (" . implode( ', ', array_keys( $blob->mItems ) ) . ")\n" );
- $text = $blob->getItem( $m[3] );
- } else {
- $this->output( "CGZ expected at $text, got " . gettype( $blob ) . "\n" );
- $text = $blob;
- }
- } else {
- $this->output( "External plain $text\n" );
- $text = ExternalStore::fetchFromURL( $text );
- }
- }
- if ( in_array( 'gzip', $flags ) ) {
- $text = gzinflate( $text );
- }
- if ( in_array( 'object', $flags ) ) {
- $obj = unserialize( $text );
- $text = $obj->getText();
+ $lookup = MediaWikiServices::getInstance()->getRevisionLookup();
+ $rev = $lookup->getRevisionById( $id );
+ if ( !$rev ) {
+ $this->fatalError( "Row not found" );
}
- if ( is_object( $text ) ) {
- $this->error( "Unexpectedly got object of type: " . get_class( $text ) );
- } else {
- $this->output( "Text length: " . strlen( $text ) . "\n" );
- $this->output( substr( $text, 0, 100 ) . "\n" );
+ $content = $rev->getContent( 'main' );
+ if ( !$content ) {
+ $this->fatalError( "Text not found" );
}
+
+ $blobStore = MediaWikiServices::getInstance()->getBlobStore();
+ $slot = $rev->getSlot( 'main' );
+ $text = $blobStore->getBlob( $slot->getAddress() );
+
+ $this->output( "Text length: " . strlen( $text ) . "\n" );
+ $this->output( substr( $text, 0, 100 ) . "\n" );
}
}
-$maintClass = "DumpRev";
-require_once( RUN_MAINTENANCE_IF_MAIN );
+$maintClass = DumpRev::class;
+require_once RUN_MAINTENANCE_IF_MAIN;