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<?php
/**
* 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
*
* @ingroup Maintenance ExternalStorage
*/
require_once( dirname(__FILE__) . '/../Maintenance.php' );
class DumpRev extends Maintenance {
public function __construct() {
parent::__construct();
$this->addArg( 'rev-id', 'Revision ID', true );
}
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 );
}
$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();
}
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" );
}
}
}
$maintClass = "DumpRev";
require_once( DO_MAINTENANCE );
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