includes/installer/MysqlInstaller.php

   1 <?php
   2 /**
   3  * MySQL-specific installer.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Deployment
  22  */
  23
  24 /**
  25  * Class for setting up the MediaWiki database using MySQL.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.17
  29  */
  30 class MysqlInstaller extends DatabaseInstaller {
  31
  32         protected $globalNames = array(
  33                 'wgDBserver',
  34                 'wgDBname',
  35                 'wgDBuser',
  36                 'wgDBpassword',
  37                 'wgDBprefix',
  38                 'wgDBTableOptions',
  39                 'wgDBmysql5',
  40         );
  41
  42         protected $internalDefaults = array(
  43                 '_MysqlEngine' => 'InnoDB',
  44                 '_MysqlCharset' => 'binary',
  45                 '_InstallUser' => 'root',
  46         );
  47
  48         public $supportedEngines = array( 'InnoDB', 'MyISAM' );
  49
  50         public $minimumVersion = '5.0.2';
  51
  52         public $webUserPrivs = array(
  53                 'DELETE',
  54                 'INSERT',
  55                 'SELECT',
  56                 'UPDATE',
  57                 'CREATE TEMPORARY TABLES',
  58         );
  59
  60         /**
  61          * @return string
  62          */
  63         public function getName() {
  64                 return 'mysql';
  65         }
  66
  67         public function __construct( $parent ) {
  68                 parent::__construct( $parent );
  69         }
  70
  71         /**
  72          * @return Bool
  73          */
  74         public function isCompiled() {
  75                 return self::checkExtension( 'mysql' );
  76         }
  77
  78         /**
  79          * @return array
  80          */
  81         public function getGlobalDefaults() {
  82                 return array();
  83         }
  84
  85         /**
  86          * @return string
  87          */
  88         public function getConnectForm() {
  89                 return $this->getTextBox( 'wgDBserver', 'config-db-host', array(), $this->parent->getHelpBox( 'config-db-host-help' ) ) .
  90                         Html::openElement( 'fieldset' ) .
  91                         Html::element( 'legend', array(), wfMessage( 'config-db-wiki-settings' )->text() ) .
  92                         $this->getTextBox( 'wgDBname', 'config-db-name', array( 'dir' => 'ltr' ), $this->parent->getHelpBox( 'config-db-name-help' ) ) .
  93                         $this->getTextBox( 'wgDBprefix', 'config-db-prefix', array( 'dir' => 'ltr' ), $this->parent->getHelpBox( 'config-db-prefix-help' ) ) .
  94                         Html::closeElement( 'fieldset' ) .
  95                         $this->getInstallUserBox();
  96         }
  97
  98         public function submitConnectForm() {
  99                 // Get variables from the request.
 100                 $newValues = $this->setVarsFromRequest( array( 'wgDBserver', 'wgDBname', 'wgDBprefix' ) );
 101
 102                 // Validate them.
 103                 $status = Status::newGood();
 104                 if ( !strlen( $newValues['wgDBserver'] ) ) {
 105                         $status->fatal( 'config-missing-db-host' );
 106                 }
 107                 if ( !strlen( $newValues['wgDBname'] ) ) {
 108                         $status->fatal( 'config-missing-db-name' );
 109                 } elseif ( !preg_match( '/^[a-z0-9+_-]+$/i', $newValues['wgDBname'] ) ) {
 110                         $status->fatal( 'config-invalid-db-name', $newValues['wgDBname'] );
 111                 }
 112                 if ( !preg_match( '/^[a-z0-9_-]*$/i', $newValues['wgDBprefix'] ) ) {
 113                         $status->fatal( 'config-invalid-db-prefix', $newValues['wgDBprefix'] );
 114                 }
 115                 if ( !$status->isOK() ) {
 116                         return $status;
 117                 }
 118
 119                 // Submit user box
 120                 $status = $this->submitInstallUserBox();
 121                 if ( !$status->isOK() ) {
 122                         return $status;
 123                 }
 124
 125                 // Try to connect
 126                 $status = $this->getConnection();
 127                 if ( !$status->isOK() ) {
 128                         return $status;
 129                 }
 130                 /**
 131                  * @var $conn DatabaseBase
 132                  */
 133                 $conn = $status->value;
 134
 135                 // Check version
 136                 $version = $conn->getServerVersion();
 137                 if ( version_compare( $version, $this->minimumVersion ) < 0 ) {
 138                         return Status::newFatal( 'config-mysql-old', $this->minimumVersion, $version );
 139                 }
 140
 141                 return $status;
 142         }
 143
 144         /**
 145          * @return Status
 146          */
 147         public function openConnection() {
 148                 $status = Status::newGood();
 149                 try {
 150                         $db = new DatabaseMysql(
 151                                 $this->getVar( 'wgDBserver' ),
 152                                 $this->getVar( '_InstallUser' ),
 153                                 $this->getVar( '_InstallPassword' ),
 154                                 false,
 155                                 0,
 156                                 $this->getVar( 'wgDBprefix' )
 157                         );
 158                         $status->value = $db;
 159                 } catch ( DBConnectionError $e ) {
 160                         $status->fatal( 'config-connection-error', $e->getMessage() );
 161                 }
 162                 return $status;
 163         }
 164
 165         public function preUpgrade() {
 166                 global $wgDBuser, $wgDBpassword;
 167
 168                 $status = $this->getConnection();
 169                 if ( !$status->isOK() ) {
 170                         $this->parent->showStatusError( $status );
 171                         return;
 172                 }
 173                 /**
 174                  * @var $conn DatabaseBase
 175                  */
 176                 $conn = $status->value;
 177                 $conn->selectDB( $this->getVar( 'wgDBname' ) );
 178
 179                 # Determine existing default character set
 180                 if ( $conn->tableExists( "revision", __METHOD__ ) ) {
 181                         $revision = $conn->buildLike( $this->getVar( 'wgDBprefix' ) . 'revision' );
 182                         $res = $conn->query( "SHOW TABLE STATUS $revision", __METHOD__ );
 183                         $row = $conn->fetchObject( $res );
 184                         if ( !$row ) {
 185                                 $this->parent->showMessage( 'config-show-table-status' );
 186                                 $existingSchema = false;
 187                                 $existingEngine = false;
 188                         } else {
 189                                 if ( preg_match( '/^latin1/', $row->Collation ) ) {
 190                                         $existingSchema = 'latin1';
 191                                 } elseif ( preg_match( '/^utf8/', $row->Collation ) ) {
 192                                         $existingSchema = 'utf8';
 193                                 } elseif ( preg_match( '/^binary/', $row->Collation ) ) {
 194                                         $existingSchema = 'binary';
 195                                 } else {
 196                                         $existingSchema = false;
 197                                         $this->parent->showMessage( 'config-unknown-collation' );
 198                                 }
 199                                 if ( isset( $row->Engine ) ) {
 200                                         $existingEngine = $row->Engine;
 201                                 } else {
 202                                         $existingEngine = $row->Type;
 203                                 }
 204                         }
 205                 } else {
 206                         $existingSchema = false;
 207                         $existingEngine = false;
 208                 }
 209
 210                 if ( $existingSchema && $existingSchema != $this->getVar( '_MysqlCharset' ) ) {
 211                         $this->setVar( '_MysqlCharset', $existingSchema );
 212                 }
 213                 if ( $existingEngine && $existingEngine != $this->getVar( '_MysqlEngine' ) ) {
 214                         $this->setVar( '_MysqlEngine', $existingEngine );
 215                 }
 216
 217                 # Normal user and password are selected after this step, so for now
 218                 # just copy these two
 219                 $wgDBuser = $this->getVar( '_InstallUser' );
 220                 $wgDBpassword = $this->getVar( '_InstallPassword' );
 221         }
 222
 223         /**
 224          * Get a list of storage engines that are available and supported
 225          *
 226          * @return array
 227          */
 228         public function getEngines() {
 229                 $status = $this->getConnection();
 230
 231                 /**
 232                  * @var $conn DatabaseBase
 233                  */
 234                 $conn = $status->value;
 235
 236                 $engines = array();
 237                 $res = $conn->query( 'SHOW ENGINES', __METHOD__ );
 238                 foreach ( $res as $row ) {
 239                         if ( $row->Support == 'YES' || $row->Support == 'DEFAULT' ) {
 240                                 $engines[] = $row->Engine;
 241                         }
 242                 }
 243                 $engines = array_intersect( $this->supportedEngines, $engines );
 244                 return $engines;
 245         }
 246
 247         /**
 248          * Get a list of character sets that are available and supported
 249          *
 250          * @return array
 251          */
 252         public function getCharsets() {
 253                 return array( 'binary', 'utf8' );
 254         }
 255
 256         /**
 257          * Return true if the install user can create accounts
 258          *
 259          * @return bool
 260          */
 261         public function canCreateAccounts() {
 262                 $status = $this->getConnection();
 263                 if ( !$status->isOK() ) {
 264                         return false;
 265                 }
 266                 /**
 267                  * @var $conn DatabaseBase
 268                  */
 269                 $conn = $status->value;
 270
 271                 // Get current account name
 272                 $currentName = $conn->selectField( '', 'CURRENT_USER()', '', __METHOD__ );
 273                 $parts = explode( '@', $currentName );
 274                 if ( count( $parts ) != 2 ) {
 275                         return false;
 276                 }
 277                 $quotedUser = $conn->addQuotes( $parts[0] ) .
 278                         '@' . $conn->addQuotes( $parts[1] );
 279
 280                 // The user needs to have INSERT on mysql.* to be able to CREATE USER
 281                 // The grantee will be double-quoted in this query, as required
 282                 $res = $conn->select( 'INFORMATION_SCHEMA.USER_PRIVILEGES', '*',
 283                         array( 'GRANTEE' => $quotedUser ), __METHOD__ );
 284                 $insertMysql = false;
 285                 $grantOptions = array_flip( $this->webUserPrivs );
 286                 foreach ( $res as $row ) {
 287                         if ( $row->PRIVILEGE_TYPE == 'INSERT' ) {
 288                                 $insertMysql = true;
 289                         }
 290                         if ( $row->IS_GRANTABLE ) {
 291                                 unset( $grantOptions[$row->PRIVILEGE_TYPE] );
 292                         }
 293                 }
 294
 295                 // Check for DB-specific privs for mysql.*
 296                 if ( !$insertMysql ) {
 297                         $row = $conn->selectRow( 'INFORMATION_SCHEMA.SCHEMA_PRIVILEGES', '*',
 298                                 array(
 299                                         'GRANTEE' => $quotedUser,
 300                                         'TABLE_SCHEMA' => 'mysql',
 301                                         'PRIVILEGE_TYPE' => 'INSERT',
 302                                 ), __METHOD__ );
 303                         if ( $row ) {
 304                                 $insertMysql = true;
 305                         }
 306                 }
 307
 308                 if ( !$insertMysql ) {
 309                         return false;
 310                 }
 311
 312                 // Check for DB-level grant options
 313                 $res = $conn->select( 'INFORMATION_SCHEMA.SCHEMA_PRIVILEGES', '*',
 314                         array(
 315                                 'GRANTEE' => $quotedUser,
 316                                 'IS_GRANTABLE' => 1,
 317                         ), __METHOD__ );
 318                 foreach ( $res as $row ) {
 319                         $regex = $conn->likeToRegex( $row->TABLE_SCHEMA );
 320                         if ( preg_match( $regex, $this->getVar( 'wgDBname' ) ) ) {
 321                                 unset( $grantOptions[$row->PRIVILEGE_TYPE] );
 322                         }
 323                 }
 324                 if ( count( $grantOptions ) ) {
 325                         // Can't grant everything
 326                         return false;
 327                 }
 328                 return true;
 329         }
 330
 331         /**
 332          * @return string
 333          */
 334         public function getSettingsForm() {
 335                 if ( $this->canCreateAccounts() ) {
 336                         $noCreateMsg = false;
 337                 } else {
 338                         $noCreateMsg = 'config-db-web-no-create-privs';
 339                 }
 340                 $s = $this->getWebUserBox( $noCreateMsg );
 341
 342                 // Do engine selector
 343                 $engines = $this->getEngines();
 344                 // If the current default engine is not supported, use an engine that is
 345                 if ( !in_array( $this->getVar( '_MysqlEngine' ), $engines ) ) {
 346                         $this->setVar( '_MysqlEngine', reset( $engines ) );
 347                 }
 348
 349                 $s .= Xml::openElement( 'div', array(
 350                         'id' => 'dbMyisamWarning'
 351                 ));
 352                 $myisamWarning = 'config-mysql-myisam-dep';
 353                 if ( count( $engines ) === 1 ) {
 354                         $myisamWarning = 'config-mysql-only-myisam-dep';
 355                 }
 356                 $s .= $this->parent->getWarningBox( wfMessage( $myisamWarning )->text() );
 357                 $s .= Xml::closeElement( 'div' );
 358
 359                 if ( $this->getVar( '_MysqlEngine' ) != 'MyISAM' ) {
 360                         $s .= Xml::openElement( 'script', array( 'type' => 'text/javascript' ) );
 361                         $s .= '$(\'#dbMyisamWarning\').hide();';
 362                         $s .= Xml::closeElement( 'script' );
 363                 }
 364
 365                 if ( count( $engines ) >= 2 ) {
 366                         // getRadioSet() builds a set of labeled radio buttons.
 367                         // For grep: The following messages are used as the item labels:
 368                         // config-mysql-innodb, config-mysql-myisam
 369                         $s .= $this->getRadioSet( array(
 370                                 'var' => '_MysqlEngine',
 371                                 'label' => 'config-mysql-engine',
 372                                 'itemLabelPrefix' => 'config-mysql-',
 373                                 'values' => $engines,
 374                                 'itemAttribs' => array(
 375                                         'MyISAM' => array(
 376                                                 'class' => 'showHideRadio',
 377                                                 'rel' => 'dbMyisamWarning'
 378                                         ),
 379                                         'InnoDB' => array(
 380                                                 'class' => 'hideShowRadio',
 381                                                 'rel' => 'dbMyisamWarning'
 382                                         )
 383                         )));
 384                         $s .= $this->parent->getHelpBox( 'config-mysql-engine-help' );
 385                 }
 386
 387                 // If the current default charset is not supported, use a charset that is
 388                 $charsets = $this->getCharsets();
 389                 if ( !in_array( $this->getVar( '_MysqlCharset' ), $charsets ) ) {
 390                         $this->setVar( '_MysqlCharset', reset( $charsets ) );
 391                 }
 392
 393                 // Do charset selector
 394                 if ( count( $charsets ) >= 2 ) {
 395                         // getRadioSet() builds a set of labeled radio buttons.
 396                         // For grep: The following messages are used as the item labels:
 397                         // config-mysql-binary, config-mysql-utf8
 398                         $s .= $this->getRadioSet( array(
 399                                 'var' => '_MysqlCharset',
 400                                 'label' => 'config-mysql-charset',
 401                                 'itemLabelPrefix' => 'config-mysql-',
 402                                 'values' => $charsets
 403                         ));
 404                         $s .= $this->parent->getHelpBox( 'config-mysql-charset-help' );
 405                 }
 406
 407                 return $s;
 408         }
 409
 410         /**
 411          * @return Status
 412          */
 413         public function submitSettingsForm() {
 414                 $this->setVarsFromRequest( array( '_MysqlEngine', '_MysqlCharset' ) );
 415                 $status = $this->submitWebUserBox();
 416                 if ( !$status->isOK() ) {
 417                         return $status;
 418                 }
 419
 420                 // Validate the create checkbox
 421                 $canCreate = $this->canCreateAccounts();
 422                 if ( !$canCreate ) {
 423                         $this->setVar( '_CreateDBAccount', false );
 424                         $create = false;
 425                 } else {
 426                         $create = $this->getVar( '_CreateDBAccount' );
 427                 }
 428
 429                 if ( !$create ) {
 430                         // Test the web account
 431                         try {
 432                                 new DatabaseMysql(
 433                                         $this->getVar( 'wgDBserver' ),
 434                                         $this->getVar( 'wgDBuser' ),
 435                                         $this->getVar( 'wgDBpassword' ),
 436                                         false,
 437                                         0,
 438                                         $this->getVar( 'wgDBprefix' )
 439                                 );
 440                         } catch ( DBConnectionError $e ) {
 441                                 return Status::newFatal( 'config-connection-error', $e->getMessage() );
 442                         }
 443                 }
 444
 445                 // Validate engines and charsets
 446                 // This is done pre-submit already so it's just for security
 447                 $engines = $this->getEngines();
 448                 if ( !in_array( $this->getVar( '_MysqlEngine' ), $engines ) ) {
 449                         $this->setVar( '_MysqlEngine', reset( $engines ) );
 450                 }
 451                 $charsets = $this->getCharsets();
 452                 if ( !in_array( $this->getVar( '_MysqlCharset' ), $charsets ) ) {
 453                         $this->setVar( '_MysqlCharset', reset( $charsets ) );
 454                 }
 455                 return Status::newGood();
 456         }
 457
 458         public function preInstall() {
 459                 # Add our user callback to installSteps, right before the tables are created.
 460                 $callback = array(
 461                         'name' => 'user',
 462                         'callback' => array( $this, 'setupUser' ),
 463                 );
 464                 $this->parent->addInstallStep( $callback, 'tables' );
 465         }
 466
 467         /**
 468          * @return Status
 469          */
 470         public function setupDatabase() {
 471                 $status = $this->getConnection();
 472                 if ( !$status->isOK() ) {
 473                         return $status;
 474                 }
 475                 $conn = $status->value;
 476                 $dbName = $this->getVar( 'wgDBname' );
 477                 if ( !$conn->selectDB( $dbName ) ) {
 478                         $conn->query( "CREATE DATABASE " . $conn->addIdentifierQuotes( $dbName ), __METHOD__ );
 479                         $conn->selectDB( $dbName );
 480                 }
 481                 $this->setupSchemaVars();
 482                 return $status;
 483         }
 484
 485         /**
 486          * @return Status
 487          */
 488         public function setupUser() {
 489                 $dbUser = $this->getVar( 'wgDBuser' );
 490                 if ( $dbUser == $this->getVar( '_InstallUser' ) ) {
 491                         return Status::newGood();
 492                 }
 493                 $status = $this->getConnection();
 494                 if ( !$status->isOK() ) {
 495                         return $status;
 496                 }
 497
 498                 $this->setupSchemaVars();
 499                 $dbName = $this->getVar( 'wgDBname' );
 500                 $this->db->selectDB( $dbName );
 501                 $server = $this->getVar( 'wgDBserver' );
 502                 $password = $this->getVar( 'wgDBpassword' );
 503                 $grantableNames = array();
 504
 505                 if ( $this->getVar( '_CreateDBAccount' ) ) {
 506                         // Before we blindly try to create a user that already has access,
 507                         try { // first attempt to connect to the database
 508                                 new DatabaseMysql(
 509                                         $server,
 510                                         $dbUser,
 511                                         $password,
 512                                         false,
 513                                         0,
 514                                         $this->getVar( 'wgDBprefix' )
 515                                 );
 516                                 $grantableNames[] = $this->buildFullUserName( $dbUser, $server );
 517                                 $tryToCreate = false;
 518                         } catch ( DBConnectionError $e ) {
 519                                 $tryToCreate = true;
 520                         }
 521                 } else {
 522                         $grantableNames[] = $this->buildFullUserName( $dbUser, $server );
 523                         $tryToCreate = false;
 524                 }
 525
 526                 if ( $tryToCreate ) {
 527                         $createHostList = array(
 528                                 $server,
 529                                 'localhost',
 530                                 'localhost.localdomain',
 531                                 '%'
 532                         );
 533
 534                         $createHostList = array_unique( $createHostList );
 535                         $escPass = $this->db->addQuotes( $password );
 536
 537                         foreach ( $createHostList as $host ) {
 538                                 $fullName = $this->buildFullUserName( $dbUser, $host );
 539                                 if ( !$this->userDefinitelyExists( $dbUser, $host ) ) {
 540                                         try {
 541                                                 $this->db->begin( __METHOD__ );
 542                                                 $this->db->query( "CREATE USER $fullName IDENTIFIED BY $escPass", __METHOD__ );
 543                                                 $this->db->commit( __METHOD__ );
 544                                                 $grantableNames[] = $fullName;
 545                                         } catch ( DBQueryError $dqe ) {
 546                                                 if ( $this->db->lastErrno() == 1396 /* ER_CANNOT_USER */ ) {
 547                                                         // User (probably) already exists
 548                                                         $this->db->rollback( __METHOD__ );
 549                                                         $status->warning( 'config-install-user-alreadyexists', $dbUser );
 550                                                         $grantableNames[] = $fullName;
 551                                                         break;
 552                                                 } else {
 553                                                         // If we couldn't create for some bizzare reason and the
 554                                                         // user probably doesn't exist, skip the grant
 555                                                         $this->db->rollback( __METHOD__ );
 556                                                         $status->warning( 'config-install-user-create-failed', $dbUser, $dqe->getText() );
 557                                                 }
 558                                         }
 559                                 } else {
 560                                         $status->warning( 'config-install-user-alreadyexists', $dbUser );
 561                                         $grantableNames[] = $fullName;
 562                                         break;
 563                                 }
 564                         }
 565                 }
 566
 567                 // Try to grant to all the users we know exist or we were able to create
 568                 $dbAllTables = $this->db->addIdentifierQuotes( $dbName ) . '.*';
 569                 foreach ( $grantableNames as $name ) {
 570                         try {
 571                                 $this->db->begin( __METHOD__ );
 572                                 $this->db->query( "GRANT ALL PRIVILEGES ON $dbAllTables TO $name", __METHOD__ );
 573                                 $this->db->commit( __METHOD__ );
 574                         } catch ( DBQueryError $dqe ) {
 575                                 $this->db->rollback( __METHOD__ );
 576                                 $status->fatal( 'config-install-user-grant-failed', $dbUser, $dqe->getText() );
 577                         }
 578                 }
 579
 580                 return $status;
 581         }
 582
 583         /**
 584          * Return a formal 'User'@'Host' username for use in queries
 585          * @param string $name Username, quotes will be added
 586          * @param string $host Hostname, quotes will be added
 587          * @return String
 588          */
 589         private function buildFullUserName( $name, $host ) {
 590                 return $this->db->addQuotes( $name ) . '@' . $this->db->addQuotes( $host );
 591         }
 592
 593         /**
 594          * Try to see if the user account exists. Our "superuser" may not have
 595          * access to mysql.user, so false means "no" or "maybe"
 596          * @param string $host Hostname to check
 597          * @param string $user Username to check
 598          * @return boolean
 599          */
 600         private function userDefinitelyExists( $host, $user ) {
 601                 try {
 602                         $res = $this->db->selectRow( 'mysql.user', array( 'Host', 'User' ),
 603                                 array( 'Host' => $host, 'User' => $user ), __METHOD__ );
 604                         return (bool)$res;
 605                 } catch ( DBQueryError $dqe ) {
 606                         return false;
 607                 }
 608
 609         }
 610
 611         /**
 612          * Return any table options to be applied to all tables that don't
 613          * override them.
 614          *
 615          * @return String
 616          */
 617         protected function getTableOptions() {
 618                 $options = array();
 619                 if ( $this->getVar( '_MysqlEngine' ) !== null ) {
 620                         $options[] = "ENGINE=" . $this->getVar( '_MysqlEngine' );
 621                 }
 622                 if ( $this->getVar( '_MysqlCharset' ) !== null ) {
 623                         $options[] = 'DEFAULT CHARSET=' . $this->getVar( '_MysqlCharset' );
 624                 }
 625                 return implode( ', ', $options );
 626         }
 627
 628         /**
 629          * Get variables to substitute into tables.sql and the SQL patch files.
 630          *
 631          * @return array
 632          */
 633         public function getSchemaVars() {
 634                 return array(
 635                         'wgDBTableOptions' => $this->getTableOptions(),
 636                         'wgDBname' => $this->getVar( 'wgDBname' ),
 637                         'wgDBuser' => $this->getVar( 'wgDBuser' ),
 638                         'wgDBpassword' => $this->getVar( 'wgDBpassword' ),
 639                 );
 640         }
 641
 642         public function getLocalSettings() {
 643                 $dbmysql5 = wfBoolToStr( $this->getVar( 'wgDBmysql5', true ) );
 644                 $prefix = LocalSettingsGenerator::escapePhpString( $this->getVar( 'wgDBprefix' ) );
 645                 $tblOpts = LocalSettingsGenerator::escapePhpString( $this->getTableOptions() );
 646                 return
 647 "# MySQL specific settings
 648 \$wgDBprefix = \"{$prefix}\";
 649
 650 # MySQL table options to use during installation or update
 651 \$wgDBTableOptions = \"{$tblOpts}\";
 652
 653 # Experimental charset support for MySQL 5.0.
 654 \$wgDBmysql5 = {$dbmysql5};";
 655         }
 656 }