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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\CentralAuth\Maintenance; |
| 4 | |
| 5 | use Generator; |
| 6 | use MediaWiki\Extension\CentralAuth\CentralAuthServices; |
| 7 | use MediaWiki\Maintenance\Maintenance; |
| 8 | use MediaWiki\WikiMap\WikiMap; |
| 9 | use Wikimedia\Rdbms\SelectQueryBuilder; |
| 10 | |
| 11 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 12 | if ( $IP === false ) { |
| 13 | $IP = __DIR__ . '/../../..'; |
| 14 | } |
| 15 | require_once "$IP/maintenance/Maintenance.php"; |
| 16 | |
| 17 | class CheckLocalUser extends Maintenance { |
| 18 | |
| 19 | /** @var float */ |
| 20 | protected $start; |
| 21 | |
| 22 | /** @var int */ |
| 23 | protected $deleted; |
| 24 | |
| 25 | /** @var int */ |
| 26 | protected $total; |
| 27 | |
| 28 | /** @var bool */ |
| 29 | protected $dryrun; |
| 30 | |
| 31 | /** @var string|null */ |
| 32 | protected $wiki; |
| 33 | |
| 34 | /** @var string|null|false */ |
| 35 | protected $user; |
| 36 | |
| 37 | /** @var bool */ |
| 38 | protected $verbose; |
| 39 | |
| 40 | public function __construct() { |
| 41 | parent::__construct(); |
| 42 | $this->requireExtension( 'CentralAuth' ); |
| 43 | $this->addDescription( 'Checks the contents of the localuser table and deletes invalid entries' ); |
| 44 | $this->start = microtime( true ); |
| 45 | $this->deleted = 0; |
| 46 | $this->total = 0; |
| 47 | $this->dryrun = true; |
| 48 | $this->wiki = null; |
| 49 | $this->user = null; |
| 50 | $this->verbose = false; |
| 51 | |
| 52 | $this->addOption( 'delete', |
| 53 | 'Performs delete operations on the offending entries', false, false |
| 54 | ); |
| 55 | $this->addOption( 'delete-nowiki', |
| 56 | 'Delete entries associated with invalid wikis', false, false |
| 57 | ); |
| 58 | $this->addOption( 'wiki', |
| 59 | 'If specified, only runs against local names from this wiki', false, true, 'u' |
| 60 | ); |
| 61 | $this->addOption( 'allwikis', 'If specified, checks all wikis', false, false ); |
| 62 | $this->addOption( 'user', 'If specified, only checks the given user', false, true ); |
| 63 | $this->addOption( 'verbose', 'Prints more information', false, true, 'v' ); |
| 64 | $this->setBatchSize( 1000 ); |
| 65 | } |
| 66 | |
| 67 | protected function initialize() { |
| 68 | if ( $this->getOption( 'delete', false ) !== false ) { |
| 69 | $this->dryrun = false; |
| 70 | } |
| 71 | |
| 72 | $wiki = $this->getOption( 'wiki', false ); |
| 73 | if ( $wiki !== false && !$this->getOption( 'allwikis' ) ) { |
| 74 | $this->wiki = $wiki; |
| 75 | } |
| 76 | |
| 77 | $user = $this->getOption( 'user', false ); |
| 78 | if ( $user !== false ) { |
| 79 | $userNameUtils = $this->getServiceContainer()->getUserNameUtils(); |
| 80 | $this->user = $userNameUtils->getCanonical( $user ); |
| 81 | } |
| 82 | |
| 83 | if ( $this->getOption( 'verbose', false ) !== false ) { |
| 84 | $this->verbose = true; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * @throws \MediaWiki\Extension\CentralAuth\CentralAuthReadOnlyError |
| 90 | */ |
| 91 | public function execute() { |
| 92 | $this->initialize(); |
| 93 | |
| 94 | $centralPrimaryDb = CentralAuthServices::getDatabaseManager()->getCentralPrimaryDB(); |
| 95 | |
| 96 | // since the keys on localnames are not conducive to batch operations and |
| 97 | // because of the database shards, grab a list of the wikis and we will |
| 98 | // iterate from there |
| 99 | foreach ( $this->getWikis() as $wiki ) { |
| 100 | $this->output( "Checking localuser for $wiki ...\n" ); |
| 101 | |
| 102 | if ( !WikiMap::getWiki( $wiki ) ) { |
| 103 | // localuser record is left over from some wiki that has been disabled |
| 104 | if ( !$this->dryrun ) { |
| 105 | if ( $this->getOption( 'delete-nowiki' ) ) { |
| 106 | $this->output( "$wiki does not exist, deleting entries...\n" ); |
| 107 | $conds = [ 'lu_wiki' => $wiki ]; |
| 108 | if ( $this->user ) { |
| 109 | $conds['lu_name'] = $this->user; |
| 110 | } |
| 111 | $centralPrimaryDb->newDeleteQueryBuilder() |
| 112 | ->deleteFrom( 'localuser' ) |
| 113 | ->where( $conds ) |
| 114 | ->caller( __METHOD__ ) |
| 115 | ->execute(); |
| 116 | $this->deleted++; |
| 117 | } else { |
| 118 | $this->output( |
| 119 | "$wiki does not exist, use --delete-nowiki to delete entries...\n" |
| 120 | ); |
| 121 | } |
| 122 | } else { |
| 123 | $this->output( "$wiki does not exist\n" ); |
| 124 | } |
| 125 | continue; |
| 126 | } |
| 127 | |
| 128 | $localdb = CentralAuthServices::getDatabaseManager()->getLocalDB( DB_REPLICA, $wiki ); |
| 129 | |
| 130 | // batch query local users from the wiki; iterate through and verify each one |
| 131 | foreach ( $this->getUsers( $wiki ) as $username ) { |
| 132 | $localUser = $localdb->newSelectQueryBuilder() |
| 133 | ->select( 'user_name' ) |
| 134 | ->from( 'user' ) |
| 135 | ->where( [ 'user_name' => $username ] ) |
| 136 | ->caller( __METHOD__ ) |
| 137 | ->fetchResultSet(); |
| 138 | |
| 139 | // check to see if the user did not exist in the local user table |
| 140 | if ( $localUser->numRows() == 0 ) { |
| 141 | if ( $this->verbose ) { |
| 142 | $this->output( |
| 143 | "Local user not found for localuser entry $username@$wiki\n" |
| 144 | ); |
| 145 | } |
| 146 | $this->total++; |
| 147 | if ( !$this->dryrun ) { |
| 148 | // go ahead and delete the extraneous entry |
| 149 | $centralPrimaryDb->newDeleteQueryBuilder() |
| 150 | ->deleteFrom( 'localuser' ) |
| 151 | ->where( [ |
| 152 | "lu_wiki" => $wiki, |
| 153 | "lu_name" => $username |
| 154 | ] ) |
| 155 | ->caller( __METHOD__ ) |
| 156 | ->execute(); |
| 157 | // TODO: is there anyway to check the success of the delete? |
| 158 | $this->deleted++; |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | $this->report(); |
| 165 | $this->output( "done.\n" ); |
| 166 | } |
| 167 | |
| 168 | private function report() { |
| 169 | $this->output( sprintf( "%s found %d invalid localuser, %d (%.1f%%) deleted\n", |
| 170 | wfTimestamp( TS_DB ), |
| 171 | $this->total, |
| 172 | $this->deleted, |
| 173 | $this->total > 0 ? ( $this->deleted / $this->total * 100.0 ) : 0 |
| 174 | ) ); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * @return array|null[]|string[] |
| 179 | */ |
| 180 | protected function getWikis() { |
| 181 | $centralReplica = CentralAuthServices::getDatabaseManager()->getCentralReplicaDB(); |
| 182 | |
| 183 | if ( $this->wiki !== null ) { |
| 184 | return [ $this->wiki ]; |
| 185 | } else { |
| 186 | $conds = []; |
| 187 | if ( $this->user !== null ) { |
| 188 | $conds['lu_name'] = $this->user; |
| 189 | } |
| 190 | return $centralReplica->newSelectQueryBuilder() |
| 191 | ->select( 'lu_wiki' ) |
| 192 | ->distinct() |
| 193 | ->from( 'localuser' ) |
| 194 | ->where( $conds ) |
| 195 | ->orderBy( 'lu_wiki', SelectQueryBuilder::SORT_ASC ) |
| 196 | ->caller( __METHOD__ ) |
| 197 | ->fetchFieldValues(); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | /** |
| 202 | * @param string $wiki |
| 203 | * |
| 204 | * @return Generator |
| 205 | */ |
| 206 | protected function getUsers( $wiki ) { |
| 207 | if ( $this->user !== null ) { |
| 208 | $this->output( "\t ... querying '$this->user'\n" ); |
| 209 | yield $this->user; |
| 210 | return; |
| 211 | } |
| 212 | |
| 213 | $centralReplica = CentralAuthServices::getDatabaseManager()->getCentralReplicaDB(); |
| 214 | $lastUsername = ''; |
| 215 | do { |
| 216 | $this->output( "\t ... querying from '$lastUsername'\n" ); |
| 217 | $result = $centralReplica->newSelectQueryBuilder() |
| 218 | ->select( 'lu_name' ) |
| 219 | ->from( 'localuser' ) |
| 220 | ->where( [ |
| 221 | 'lu_wiki' => $wiki, |
| 222 | $centralReplica->expr( 'lu_name', '>', $lastUsername ), |
| 223 | ] ) |
| 224 | ->orderBy( 'lu_name', SelectQueryBuilder::SORT_ASC ) |
| 225 | ->limit( $this->mBatchSize ) |
| 226 | ->caller( __METHOD__ ) |
| 227 | ->fetchResultSet(); |
| 228 | |
| 229 | foreach ( $result as $u ) { |
| 230 | yield $u->lu_name; |
| 231 | } |
| 232 | |
| 233 | $lastUsername = $u->lu_name ?? null; |
| 234 | } while ( $result->numRows() > 0 ); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | $maintClass = CheckLocalUser::class; |
| 239 | require_once RUN_MAINTENANCE_IF_MAIN; |