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<?php
/**
* Cleans up user blocks with user names not matching the 'user' table
*
* 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 to clean up user blocks with user names not matching the
* 'user' table.
*
* @ingroup Maintenance
*/
class CleanupBlocks extends Maintenance {
public function __construct() {
parent::__construct();
$this->mDescription = "Cleanup user blocks with user names not matching the 'user' table";
$this->setBatchSize( 1000 );
}
public function execute() {
$db = wfGetDB( DB_MASTER );
$max = $db->selectField( 'ipblocks', 'MAX(ipb_user)' );
// Step 1: Clean up any duplicate user blocks
for ( $from = 1; $from <= $max; $from += $this->mBatchSize ) {
$to = min( $max, $from + $this->mBatchSize - 1 );
$this->output( "Cleaning up duplicate ipb_user ($from-$to of $max)\n" );
$delete = array();
$res = $db->select(
'ipblocks',
array( 'ipb_user' ),
array(
"ipb_user >= $from",
"ipb_user <= $to",
),
__METHOD__,
array(
'GROUP BY' => 'ipb_user',
'HAVING' => 'COUNT(*) > 1',
)
);
foreach ( $res as $row ) {
$bestBlock = null;
$res2 = $db->select(
'ipblocks',
'*',
array(
'ipb_user' => $row->ipb_user,
)
);
foreach ( $res2 as $row2 ) {
$block = Block::newFromRow( $row2 );
if ( !$bestBlock ) {
$bestBlock = $block;
continue;
}
// Find the most-restrictive block. Can't use
// Block::chooseBlock because that's for IP blocks, not
// user blocks.
$keep = null;
if ( $keep === null && $block->getExpiry() !== $bestBlock->getExpiry() ) {
// This works for infinite blocks because 'infinity' > '20141024234513'
$keep = $block->getExpiry() > $bestBlock->getExpiry();
}
if ( $keep === null ) {
foreach ( array( 'createaccount', 'sendemail', 'editownusertalk' ) as $action ) {
if ( $block->prevents( $action ) xor $bestBlock->prevents( $action ) ) {
$keep = $block->prevents( $action );
break;
}
}
}
if ( $keep ) {
$delete[] = $bestBlock->getId();
$bestBlock = $block;
} else {
$delete[] = $block->getId();
}
}
}
if ( $delete ) {
$db->delete(
'ipblocks',
array( 'ipb_id' => $delete ),
__METHOD__
);
}
}
// Step 2: Update the user name in any blocks where it doesn't match
for ( $from = 1; $from <= $max; $from += $this->mBatchSize ) {
$to = min( $max, $from + $this->mBatchSize - 1 );
$this->output( "Cleaning up mismatched user name ($from-$to of $max)\n" );
$res = $db->select(
array( 'ipblocks', 'user' ),
array( 'ipb_id', 'user_name' ),
array(
'ipb_user = user_id',
"ipb_user >= $from",
"ipb_user <= $to",
'ipb_address != user_name',
),
__METHOD__
);
foreach ( $res as $row ) {
$db->update(
'ipblocks',
array( 'ipb_address' => $row->user_name ),
array( 'ipb_id' => $row->ipb_id ),
__METHOD__
);
}
}
$this->output( "Done!\n" );
}
}
$maintClass = "CleanupBlocks";
require_once RUN_MAINTENANCE_IF_MAIN;
|
