+ 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" );
+ }
+ }