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<?php
/**
* Script to change users preferences on the fly.
*
* Made on an original idea by Fooey (freenode)
*
* 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
* @author Antoine Musso <hashar at free dot fr>
*/
use MediaWiki\Maintenance\Maintenance;
use MediaWiki\User\User;
use MediaWiki\User\UserIdentityValue;
use Wikimedia\Rdbms\IExpression;
use Wikimedia\Rdbms\SelectQueryBuilder;
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
/**
* @ingroup Maintenance
*/
class UserOptionsMaintenance extends Maintenance {
public function __construct() {
parent::__construct();
$this->addDescription( 'Pass through all users and change or delete one of their options.
The new option is NOT validated.' );
$this->addOption( 'list', 'List available user options and their default value' );
$this->addOption( 'usage', 'Report all options statistics or just one if you specify it' );
$this->addOption(
'old',
'The value to look for. If it is a default value for the option, pass --old-is-default as well.',
false, true, false, true
);
$this->addOption( 'old-is-default', 'If passed, --old is interpreted as a default value.' );
$this->addOption( 'new', 'New value to update users with', false, true );
$this->addOption( 'delete', 'Delete the option instead of updating' );
$this->addOption( 'delete-defaults', 'Delete user_properties row matching the default' );
$this->addOption( 'fromuserid', 'Start from this user ID when changing/deleting options',
false, true );
$this->addOption( 'touserid', 'Do not go beyond this user ID when changing/deleting options',
false, true );
$this->addOption( 'nowarn', 'Hides the 5 seconds warning' );
$this->addOption( 'dry', 'Do not save user settings back to database' );
$this->addArg( 'option name', 'Name of the option to change or provide statistics about', false );
$this->setBatchSize( 100 );
}
/**
* Do the actual work
*/
public function execute() {
if ( $this->hasOption( 'list' ) ) {
$this->listAvailableOptions();
} elseif ( $this->hasOption( 'usage' ) ) {
$this->showUsageStats();
} elseif ( $this->hasOption( 'old' )
&& $this->hasOption( 'new' )
&& $this->hasArg( 0 )
) {
$this->updateOptions();
} elseif ( $this->hasOption( 'delete' ) ) {
$this->deleteOptions();
} elseif ( $this->hasOption( 'delete-defaults' ) ) {
$this->deleteDefaults();
} else {
$this->maybeHelp( true );
}
}
/**
* List default options and their value
*/
private function listAvailableOptions() {
$userOptionsLookup = $this->getServiceContainer()->getUserOptionsLookup();
$def = $userOptionsLookup->getDefaultOptions( null );
ksort( $def );
$maxOpt = 0;
foreach ( $def as $opt => $value ) {
$maxOpt = max( $maxOpt, strlen( $opt ) );
}
foreach ( $def as $opt => $value ) {
$this->output( sprintf( "%-{$maxOpt}s: %s\n", $opt, $value ) );
}
}
/**
* List options usage
*/
private function showUsageStats() {
$option = $this->getArg( 0 );
$ret = [];
$userOptionsLookup = $this->getServiceContainer()->getUserOptionsLookup();
$defaultOptions = $userOptionsLookup->getDefaultOptions();
if ( $option && !array_key_exists( $option, $defaultOptions ) ) {
$this->fatalError( "Invalid user option. Use --list to see valid choices\n" );
}
// We list user by user_id from one of the replica DBs
$dbr = $this->getServiceContainer()->getConnectionProvider()->getReplicaDatabase();
$result = $dbr->newSelectQueryBuilder()
->select( [ 'user_id' ] )
->from( 'user' )
->caller( __METHOD__ )->fetchResultSet();
foreach ( $result as $id ) {
$user = User::newFromId( $id->user_id );
// Get the options and update stats
if ( $option ) {
$userValue = $userOptionsLookup->getOption( $user, $option );
if ( $userValue != $defaultOptions[$option] ) {
$ret[$option][$userValue] = ( $ret[$option][$userValue] ?? 0 ) + 1;
}
} else {
foreach ( $defaultOptions as $name => $defaultValue ) {
$userValue = $userOptionsLookup->getOption( $user, $name );
if ( $userValue != $defaultValue ) {
$ret[$name][$userValue] = ( $ret[$name][$userValue] ?? 0 ) + 1;
}
}
}
}
foreach ( $ret as $optionName => $usageStats ) {
$this->output( "Usage for <$optionName> (default: '{$defaultOptions[$optionName]}'):\n" );
foreach ( $usageStats as $value => $count ) {
$this->output( " $count user(s): '$value'\n" );
}
print "\n";
}
}
/**
* Change our users options
*/
private function updateOptions() {
$dryRun = $this->hasOption( 'dry' );
$settingWord = $dryRun ? 'Would set' : 'Setting';
$option = $this->getArg( 0 );
$fromIsDefault = $this->hasOption( 'old-is-default' );
$from = $this->getOption( 'old' );
$to = $this->getOption( 'new' );
// The fromuserid parameter is inclusive, but iterating is easier with an exclusive
// range so convert it.
$fromUserId = (int)$this->getOption( 'fromuserid', 1 ) - 1;
$toUserId = (int)$this->getOption( 'touserid', 0 ) ?: null;
$fromAsText = implode( '|', $from );
if ( !$dryRun ) {
$forUsers = ( $fromUserId || $toUserId ) ? "some users (ID $fromUserId-$toUserId)" : 'ALL USERS';
$this->warn(
<<<WARN
The script is about to change the options for $forUsers in the database.
Users with option <$option> = '$fromAsText' will be made to use '$to'.
Abort with control-c in the next five seconds....
WARN
);
}
$userOptionsManager = $this->getServiceContainer()->getUserOptionsManager();
$tempUserConfig = $this->getServiceContainer()->getTempUserConfig();
$dbr = $this->getReplicaDB();
$queryBuilderTemplate = $dbr->newSelectQueryBuilder()
->table( 'user' )
->leftJoin( 'user_properties', null, [
'user_id = up_user',
'up_property' => $option,
] )
->fields( [ 'user_id', 'user_name', 'up_value' ] )
// up_value is unindexed so this can be slow, but should be acceptable in a script
->where( [ 'up_value' => $fromIsDefault ? null : $from ] )
// need to order by ID so we can use ID ranges for query continuation
// also needed for the fromuserid / touserid parameters to work
->orderBy( 'user_id', SelectQueryBuilder::SORT_ASC )
->limit( $this->getBatchSize() )
->caller( __METHOD__ );
if ( $toUserId ) {
$queryBuilderTemplate->andWhere( $dbr->expr( 'user_id', '<=', $toUserId ) );
}
if ( $tempUserConfig->isKnown() ) {
$queryBuilderTemplate->andWhere(
$tempUserConfig->getMatchCondition( $dbr, 'user_name', IExpression::NOT_LIKE )
);
}
do {
$queryBuilder = clone $queryBuilderTemplate;
$queryBuilder->andWhere( $dbr->expr( 'user_id', '>', $fromUserId ) );
$result = $queryBuilder->fetchResultSet();
foreach ( $result as $row ) {
$fromUserId = (int)$row->user_id;
$user = UserIdentityValue::newRegistered( $row->user_id, $row->user_name );
if ( $fromIsDefault ) {
// $user has the default value for $option; skip if it doesn't match
// NOTE: This is intentionally a loose comparison. $from is always a string
// (coming from the command line), but the default value might be of a
// different type.
$oldOptionMatchingDefault = null;
$oldOptionIsDefault = true;
foreach ( $from as $oldOption ) {
$oldOptionIsDefault = $oldOption == $userOptionsManager->getDefaultOption( $option, $user );
if ( $oldOptionIsDefault ) {
$oldOptionMatchingDefault = $oldOption;
break;
}
}
if ( !$oldOptionIsDefault ) {
$this->output(
"Skipping $option for $row->user_name as the default value for that user is not " .
"specified in --from\n"
);
continue;
}
$fromForThisUser = $oldOptionMatchingDefault ?? $fromAsText;
} else {
$fromForThisUser = $row->up_value;
}
$this->output( "$settingWord $option for $row->user_name from '$fromForThisUser' to '$to'\n" );
if ( !$dryRun ) {
$userOptionsManager->setOption( $user, $option, $to );
$userOptionsManager->saveOptions( $user );
}
}
$this->waitForReplication();
} while ( $result->numRows() );
}
/**
* Delete occurrences of the option (with the given value, if provided)
*/
private function deleteOptions() {
$dryRun = $this->hasOption( 'dry' );
$option = $this->getArg( 0 );
$fromUserId = (int)$this->getOption( 'fromuserid', 0 );
$toUserId = (int)$this->getOption( 'touserid', 0 ) ?: null;
$old = $this->getOption( 'old' );
if ( !$dryRun ) {
$forUsers = ( $fromUserId || $toUserId ) ? "some users (ID $fromUserId-$toUserId)" : 'ALL USERS';
$this->warn( <<<WARN
The script is about to delete '$option' option for $forUsers from user_properties table.
This action is IRREVERSIBLE.
Abort with control-c in the next five seconds....
WARN
);
}
$dbr = $this->getReplicaDB();
$dbw = $this->getPrimaryDB();
$rowsNum = 0;
$rowsInThisBatch = -1;
$minUserId = $fromUserId;
while ( $rowsInThisBatch != 0 ) {
$queryBuilder = $dbr->newSelectQueryBuilder()
->select( 'up_user' )
->from( 'user_properties' )
->where( [ 'up_property' => $option, $dbr->expr( 'up_user', '>', $minUserId ) ] );
if ( $this->hasOption( 'touserid' ) ) {
$queryBuilder->andWhere( $dbr->expr( 'up_user', '<', $toUserId ) );
}
if ( $this->hasOption( 'old' ) ) {
$queryBuilder->andWhere( [ 'up_value' => $old ] );
}
// need to order by ID so we can use ID ranges for query continuation
$queryBuilder
->orderBy( 'up_user', SelectQueryBuilder::SORT_ASC )
->limit( $this->getBatchSize() );
$userIds = $queryBuilder->caller( __METHOD__ )->fetchFieldValues();
if ( $userIds === [] ) {
// no rows left
break;
}
if ( !$dryRun ) {
$delete = $dbw->newDeleteQueryBuilder()
->deleteFrom( 'user_properties' )
->where( [ 'up_property' => $option, 'up_user' => $userIds ] );
if ( $this->hasOption( 'old' ) ) {
$delete->andWhere( [ 'up_value' => $old ] );
}
$delete->caller( __METHOD__ )->execute();
$rowsInThisBatch = $dbw->affectedRows();
} else {
$rowsInThisBatch = count( $userIds );
}
$this->waitForReplication();
$rowsNum += $rowsInThisBatch;
$minUserId = max( $userIds );
}
if ( !$dryRun ) {
$this->output( "Done! Deleted $rowsNum rows.\n" );
} else {
$this->output( "Would delete $rowsNum rows.\n" );
}
}
private function deleteDefaults() {
$dryRun = $this->hasOption( 'dry' );
$option = $this->getArg( 0 );
$fromUserId = (int)$this->getOption( 'fromuserid', 0 );
$toUserId = (int)$this->getOption( 'touserid', 0 ) ?: null;
if ( $option === null ) {
$this->fatalError( "Option name is required" );
}
if ( $dryRun ) {
$this->fatalError( "--delete-defaults does not support a dry run." );
}
$this->warn( <<<WARN
This script is about to delete all rows in user_properties that match the current
defaults for the user (including conditional defaults).
This action is IRREVERSIBLE.
Abort with control-c in the next five seconds....
WARN
);
$dbr = $this->getDB( DB_REPLICA );
$queryBuilderTemplate = $dbr->newSelectQueryBuilder()
->select( [ 'user_id', 'user_name', 'up_value' ] )
->from( 'user_properties' )
->join( 'user', null, [ 'up_user = user_id' ] )
->where( [ 'up_property' => $option ] )
->limit( $this->getBatchSize() )
->caller( __METHOD__ );
if ( $toUserId !== null ) {
$queryBuilderTemplate->andWhere( $dbr->expr( 'up_user', '<=', $toUserId ) );
}
$userOptionsManager = $this->getServiceContainer()->getUserOptionsManager();
do {
$queryBuilder = clone $queryBuilderTemplate;
$queryBuilder->andWhere( $dbr->expr( 'up_user', '>', $fromUserId ) );
$result = $queryBuilder->fetchResultSet();
foreach ( $result as $row ) {
$fromUserId = (int)$row->user_id;
// NOTE: If up_value equals to the default, this will drop the row. Otherwise, it
// is going to be a no-op.
$user = UserIdentityValue::newRegistered( $row->user_id, $row->user_name );
$userOptionsManager->setOption( $user, $option, $row->up_value );
$userOptionsManager->saveOptions( $user );
}
$this->waitForReplication();
} while ( $result->numRows() );
$this->output( "Done!\n" );
}
/**
* The warning message and countdown
*/
private function warn( string $message ) {
if ( $this->hasOption( 'nowarn' ) ) {
return;
}
$this->output( $message );
$this->countDown( 5 );
}
}
// @codeCoverageIgnoreStart
$maintClass = UserOptionsMaintenance::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd