includes/installer/MssqlInstaller.php

   1 <?php
   2 /**
   3  * Microsoft SQL Server-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 Microsoft SQL Server.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.23
  29  */
  30 class MssqlInstaller extends DatabaseInstaller {
  31
  32         protected $globalNames = [
  33                 'wgDBserver',
  34                 'wgDBname',
  35                 'wgDBuser',
  36                 'wgDBpassword',
  37                 'wgDBmwschema',
  38                 'wgDBprefix',
  39                 'wgDBWindowsAuthentication',
  40         ];
  41
  42         protected $internalDefaults = [
  43                 '_InstallUser' => 'sa',
  44                 '_InstallWindowsAuthentication' => 'sqlauth',
  45                 '_WebWindowsAuthentication' => 'sqlauth',
  46         ];
  47
  48         // SQL Server 2005 RTM
  49         // @todo Are SQL Express version numbers different?)
  50         public $minimumVersion = '9.00.1399';
  51
  52         // These are schema-level privs
  53         // Note: the web user will be created will full permissions if possible, this permission
  54         // list is only used if we are unable to grant full permissions.
  55         public $webUserPrivs = [
  56                 'DELETE',
  57                 'INSERT',
  58                 'SELECT',
  59                 'UPDATE',
  60                 'EXECUTE',
  61         ];
  62
  63         /**
  64          * @return string
  65          */
  66         public function getName() {
  67                 return 'mssql';
  68         }
  69
  70         /**
  71          * @return bool
  72          */
  73         public function isCompiled() {
  74                 return self::checkExtension( 'sqlsrv' );
  75         }
  76
  77         /**
  78          * @return string
  79          */
  80         public function getConnectForm() {
  81                 if ( $this->getVar( '_InstallWindowsAuthentication' ) == 'windowsauth' ) {
  82                         $displayStyle = 'display: none;';
  83                 } else {
  84                         $displayStyle = 'display: block;';
  85                 }
  86
  87                 return $this->getTextBox(
  88                         'wgDBserver',
  89                         'config-db-host',
  90                         [],
  91                         $this->parent->getHelpBox( 'config-db-host-help' )
  92                 ) .
  93                         Html::openElement( 'fieldset' ) .
  94                         Html::element( 'legend', [], wfMessage( 'config-db-wiki-settings' )->text() ) .
  95                         $this->getTextBox( 'wgDBname', 'config-db-name', [ 'dir' => 'ltr' ],
  96                                 $this->parent->getHelpBox( 'config-db-name-help' ) ) .
  97                         $this->getTextBox( 'wgDBmwschema', 'config-db-schema', [ 'dir' => 'ltr' ],
  98                                 $this->parent->getHelpBox( 'config-db-schema-help' ) ) .
  99                         $this->getTextBox( 'wgDBprefix', 'config-db-prefix', [ 'dir' => 'ltr' ],
 100                                 $this->parent->getHelpBox( 'config-db-prefix-help' ) ) .
 101                         Html::closeElement( 'fieldset' ) .
 102                         Html::openElement( 'fieldset' ) .
 103                         Html::element( 'legend', [], wfMessage( 'config-db-install-account' )->text() ) .
 104                         $this->getRadioSet( [
 105                                 'var' => '_InstallWindowsAuthentication',
 106                                 'label' => 'config-mssql-auth',
 107                                 'itemLabelPrefix' => 'config-mssql-',
 108                                 'values' => [ 'sqlauth', 'windowsauth' ],
 109                                 'itemAttribs' => [
 110                                         'sqlauth' => [
 111                                                 'class' => 'showHideRadio',
 112                                                 'rel' => 'dbCredentialBox',
 113                                         ],
 114                                         'windowsauth' => [
 115                                                 'class' => 'hideShowRadio',
 116                                                 'rel' => 'dbCredentialBox',
 117                                         ]
 118                                 ],
 119                                 'help' => $this->parent->getHelpBox( 'config-mssql-install-auth' )
 120                         ] ) .
 121                         Html::openElement( 'div', [ 'id' => 'dbCredentialBox', 'style' => $displayStyle ] ) .
 122                         $this->getTextBox(
 123                                 '_InstallUser',
 124                                 'config-db-username',
 125                                 [ 'dir' => 'ltr' ],
 126                                 $this->parent->getHelpBox( 'config-db-install-username' )
 127                         ) .
 128                         $this->getPasswordBox(
 129                                 '_InstallPassword',
 130                                 'config-db-password',
 131                                 [ 'dir' => 'ltr' ],
 132                                 $this->parent->getHelpBox( 'config-db-install-password' )
 133                         ) .
 134                         Html::closeElement( 'div' ) .
 135                         Html::closeElement( 'fieldset' );
 136         }
 137
 138         public function submitConnectForm() {
 139                 // Get variables from the request.
 140                 $newValues = $this->setVarsFromRequest( [
 141                         'wgDBserver',
 142                         'wgDBname',
 143                         'wgDBmwschema',
 144                         'wgDBprefix'
 145                 ] );
 146
 147                 // Validate them.
 148                 $status = Status::newGood();
 149                 if ( !strlen( $newValues['wgDBserver'] ) ) {
 150                         $status->fatal( 'config-missing-db-host' );
 151                 }
 152                 if ( !strlen( $newValues['wgDBname'] ) ) {
 153                         $status->fatal( 'config-missing-db-name' );
 154                 } elseif ( !preg_match( '/^[a-z0-9_]+$/i', $newValues['wgDBname'] ) ) {
 155                         $status->fatal( 'config-invalid-db-name', $newValues['wgDBname'] );
 156                 }
 157                 if ( !preg_match( '/^[a-z0-9_]*$/i', $newValues['wgDBmwschema'] ) ) {
 158                         $status->fatal( 'config-invalid-schema', $newValues['wgDBmwschema'] );
 159                 }
 160                 if ( !preg_match( '/^[a-z0-9_]*$/i', $newValues['wgDBprefix'] ) ) {
 161                         $status->fatal( 'config-invalid-db-prefix', $newValues['wgDBprefix'] );
 162                 }
 163                 if ( !$status->isOK() ) {
 164                         return $status;
 165                 }
 166
 167                 // Check for blank schema and remap to dbo
 168                 if ( $newValues['wgDBmwschema'] === '' ) {
 169                         $this->setVar( 'wgDBmwschema', 'dbo' );
 170                 }
 171
 172                 // User box
 173                 $this->setVarsFromRequest( [
 174                         '_InstallUser',
 175                         '_InstallPassword',
 176                         '_InstallWindowsAuthentication'
 177                 ] );
 178
 179                 // Try to connect
 180                 $status = $this->getConnection();
 181                 if ( !$status->isOK() ) {
 182                         return $status;
 183                 }
 184                 /**
 185                  * @var $conn DatabaseBase
 186                  */
 187                 $conn = $status->value;
 188
 189                 // Check version
 190                 $version = $conn->getServerVersion();
 191                 if ( version_compare( $version, $this->minimumVersion ) < 0 ) {
 192                         return Status::newFatal( 'config-mssql-old', $this->minimumVersion, $version );
 193                 }
 194
 195                 return $status;
 196         }
 197
 198         /**
 199          * @return Status
 200          */
 201         public function openConnection() {
 202                 global $wgDBWindowsAuthentication;
 203                 $status = Status::newGood();
 204                 $user = $this->getVar( '_InstallUser' );
 205                 $password = $this->getVar( '_InstallPassword' );
 206
 207                 if ( $this->getVar( '_InstallWindowsAuthentication' ) == 'windowsauth' ) {
 208                         // Use Windows authentication for this connection
 209                         $wgDBWindowsAuthentication = true;
 210                 } else {
 211                         $wgDBWindowsAuthentication = false;
 212                 }
 213
 214                 try {
 215                         $db = DatabaseBase::factory( 'mssql', [
 216                                 'host' => $this->getVar( 'wgDBserver' ),
 217                                 'user' => $user,
 218                                 'password' => $password,
 219                                 'dbname' => false,
 220                                 'flags' => 0,
 221                                 'schema' => $this->getVar( 'wgDBmwschema' ),
 222                                 'tablePrefix' => $this->getVar( 'wgDBprefix' ) ] );
 223                         $db->prepareStatements( false );
 224                         $db->scrollableCursor( false );
 225                         $status->value = $db;
 226                 } catch ( DBConnectionError $e ) {
 227                         $status->fatal( 'config-connection-error', $e->getMessage() );
 228                 }
 229
 230                 return $status;
 231         }
 232
 233         public function preUpgrade() {
 234                 global $wgDBuser, $wgDBpassword;
 235
 236                 $status = $this->getConnection();
 237                 if ( !$status->isOK() ) {
 238                         $this->parent->showStatusError( $status );
 239
 240                         return;
 241                 }
 242                 /**
 243                  * @var $conn DatabaseBase
 244                  */
 245                 $conn = $status->value;
 246                 $conn->selectDB( $this->getVar( 'wgDBname' ) );
 247
 248                 # Normal user and password are selected after this step, so for now
 249                 # just copy these two
 250                 $wgDBuser = $this->getVar( '_InstallUser' );
 251                 $wgDBpassword = $this->getVar( '_InstallPassword' );
 252         }
 253
 254         /**
 255          * Return true if the install user can create accounts
 256          *
 257          * @return bool
 258          */
 259         public function canCreateAccounts() {
 260                 $status = $this->getConnection();
 261                 if ( !$status->isOK() ) {
 262                         return false;
 263                 }
 264                 /** @var $conn DatabaseBase */
 265                 $conn = $status->value;
 266
 267                 // We need the server-level ALTER ANY LOGIN permission to create new accounts
 268                 $res = $conn->query( "SELECT permission_name FROM sys.fn_my_permissions( NULL, 'SERVER' )" );
 269                 $serverPrivs = [
 270                         'ALTER ANY LOGIN' => false,
 271                         'CONTROL SERVER' => false,
 272                 ];
 273
 274                 foreach ( $res as $row ) {
 275                         $serverPrivs[$row->permission_name] = true;
 276                 }
 277
 278                 if ( !$serverPrivs['ALTER ANY LOGIN'] ) {
 279                         return false;
 280                 }
 281
 282                 // Check to ensure we can grant everything needed as well
 283                 // We can't actually tell if we have WITH GRANT OPTION for a given permission, so we assume we do
 284                 // and just check for the permission
 285                 // http://technet.microsoft.com/en-us/library/ms178569.aspx
 286                 // The following array sets up which permissions imply whatever permissions we specify
 287                 $implied = [
 288                         // schema           database  server
 289                         'DELETE'  => [ 'DELETE', 'CONTROL SERVER' ],
 290                         'EXECUTE' => [ 'EXECUTE', 'CONTROL SERVER' ],
 291                         'INSERT'  => [ 'INSERT', 'CONTROL SERVER' ],
 292                         'SELECT'  => [ 'SELECT', 'CONTROL SERVER' ],
 293                         'UPDATE'  => [ 'UPDATE', 'CONTROL SERVER' ],
 294                 ];
 295
 296                 $grantOptions = array_flip( $this->webUserPrivs );
 297
 298                 // Check for schema and db-level permissions, but only if the schema/db exists
 299                 $schemaPrivs = $dbPrivs = [
 300                         'DELETE' => false,
 301                         'EXECUTE' => false,
 302                         'INSERT' => false,
 303                         'SELECT' => false,
 304                         'UPDATE' => false,
 305                 ];
 306
 307                 $dbPrivs['ALTER ANY USER'] = false;
 308
 309                 if ( $this->databaseExists( $this->getVar( 'wgDBname' ) ) ) {
 310                         $conn->selectDB( $this->getVar( 'wgDBname' ) );
 311                         $res = $conn->query( "SELECT permission_name FROM sys.fn_my_permissions( NULL, 'DATABASE' )" );
 312
 313                         foreach ( $res as $row ) {
 314                                 $dbPrivs[$row->permission_name] = true;
 315                         }
 316
 317                         // If the db exists, we need ALTER ANY USER privs on it to make a new user
 318                         if ( !$dbPrivs['ALTER ANY USER'] ) {
 319                                 return false;
 320                         }
 321
 322                         if ( $this->schemaExists( $this->getVar( 'wgDBmwschema' ) ) ) {
 323                                 // wgDBmwschema is validated to only contain alphanumeric + underscore, so this is safe
 324                                 $res = $conn->query( "SELECT permission_name FROM sys.fn_my_permissions( "
 325                                         . "'{$this->getVar( 'wgDBmwschema' )}', 'SCHEMA' )" );
 326
 327                                 foreach ( $res as $row ) {
 328                                         $schemaPrivs[$row->permission_name] = true;
 329                                 }
 330                         }
 331                 }
 332
 333                 // Now check all the grants we'll need to be doing to see if we can
 334                 foreach ( $this->webUserPrivs as $permission ) {
 335                         if ( ( isset( $schemaPrivs[$permission] ) && $schemaPrivs[$permission] )
 336                                         || ( isset( $dbPrivs[$implied[$permission][0]] )
 337                                                 && $dbPrivs[$implied[$permission][0]] )
 338                                         || ( isset( $serverPrivs[$implied[$permission][1]] )
 339                                                 && $serverPrivs[$implied[$permission][1]] )
 340                         ) {
 341                                 unset( $grantOptions[$permission] );
 342                         }
 343                 }
 344
 345                 if ( count( $grantOptions ) ) {
 346                         // Can't grant everything
 347                         return false;
 348                 }
 349
 350                 return true;
 351         }
 352
 353         /**
 354          * @return string
 355          */
 356         public function getSettingsForm() {
 357                 if ( $this->canCreateAccounts() ) {
 358                         $noCreateMsg = false;
 359                 } else {
 360                         $noCreateMsg = 'config-db-web-no-create-privs';
 361                 }
 362
 363                 $wrapperStyle = $this->getVar( '_SameAccount' ) ? 'display: none' : '';
 364                 $displayStyle = $this->getVar( '_WebWindowsAuthentication' ) == 'windowsauth'
 365                         ? 'display: none'
 366                         : '';
 367                 $s = Html::openElement( 'fieldset' ) .
 368                         Html::element( 'legend', [], wfMessage( 'config-db-web-account' )->text() ) .
 369                         $this->getCheckBox(
 370                                 '_SameAccount', 'config-db-web-account-same',
 371                                 [ 'class' => 'hideShowRadio', 'rel' => 'dbOtherAccount' ]
 372                         ) .
 373                         Html::openElement( 'div', [ 'id' => 'dbOtherAccount', 'style' => $wrapperStyle ] ) .
 374                         $this->getRadioSet( [
 375                                 'var' => '_WebWindowsAuthentication',
 376                                 'label' => 'config-mssql-auth',
 377                                 'itemLabelPrefix' => 'config-mssql-',
 378                                 'values' => [ 'sqlauth', 'windowsauth' ],
 379                                 'itemAttribs' => [
 380                                         'sqlauth' => [
 381                                                 'class' => 'showHideRadio',
 382                                                 'rel' => 'dbCredentialBox',
 383                                         ],
 384                                         'windowsauth' => [
 385                                                 'class' => 'hideShowRadio',
 386                                                 'rel' => 'dbCredentialBox',
 387                                         ]
 388                                 ],
 389                                 'help' => $this->parent->getHelpBox( 'config-mssql-web-auth' )
 390                         ] ) .
 391                         Html::openElement( 'div', [ 'id' => 'dbCredentialBox', 'style' => $displayStyle ] ) .
 392                         $this->getTextBox( 'wgDBuser', 'config-db-username' ) .
 393                         $this->getPasswordBox( 'wgDBpassword', 'config-db-password' ) .
 394                         Html::closeElement( 'div' );
 395
 396                 if ( $noCreateMsg ) {
 397                         $s .= $this->parent->getWarningBox( wfMessage( $noCreateMsg )->plain() );
 398                 } else {
 399                         $s .= $this->getCheckBox( '_CreateDBAccount', 'config-db-web-create' );
 400                 }
 401
 402                 $s .= Html::closeElement( 'div' ) . Html::closeElement( 'fieldset' );
 403
 404                 return $s;
 405         }
 406
 407         /**
 408          * @return Status
 409          */
 410         public function submitSettingsForm() {
 411                 $this->setVarsFromRequest( [
 412                                 'wgDBuser',
 413                                 'wgDBpassword',
 414                                 '_SameAccount',
 415                                 '_CreateDBAccount',
 416                                 '_WebWindowsAuthentication'
 417                 ] );
 418
 419                 if ( $this->getVar( '_SameAccount' ) ) {
 420                         $this->setVar( '_WebWindowsAuthentication', $this->getVar( '_InstallWindowsAuthentication' ) );
 421                         $this->setVar( 'wgDBuser', $this->getVar( '_InstallUser' ) );
 422                         $this->setVar( 'wgDBpassword', $this->getVar( '_InstallPassword' ) );
 423                 }
 424
 425                 if ( $this->getVar( '_WebWindowsAuthentication' ) == 'windowsauth' ) {
 426                         $this->setVar( 'wgDBuser', '' );
 427                         $this->setVar( 'wgDBpassword', '' );
 428                         $this->setVar( 'wgDBWindowsAuthentication', true );
 429                 } else {
 430                         $this->setVar( 'wgDBWindowsAuthentication', false );
 431                 }
 432
 433                 if ( $this->getVar( '_CreateDBAccount' )
 434                         && $this->getVar( '_WebWindowsAuthentication' ) == 'sqlauth'
 435                         && strval( $this->getVar( 'wgDBpassword' ) ) == ''
 436                 ) {
 437                         return Status::newFatal( 'config-db-password-empty', $this->getVar( 'wgDBuser' ) );
 438                 }
 439
 440                 // Validate the create checkbox
 441                 $canCreate = $this->canCreateAccounts();
 442                 if ( !$canCreate ) {
 443                         $this->setVar( '_CreateDBAccount', false );
 444                         $create = false;
 445                 } else {
 446                         $create = $this->getVar( '_CreateDBAccount' );
 447                 }
 448
 449                 if ( !$create ) {
 450                         // Test the web account
 451                         $user = $this->getVar( 'wgDBuser' );
 452                         $password = $this->getVar( 'wgDBpassword' );
 453
 454                         if ( $this->getVar( '_WebWindowsAuthentication' ) == 'windowsauth' ) {
 455                                 $user = 'windowsauth';
 456                                 $password = 'windowsauth';
 457                         }
 458
 459                         try {
 460                                 DatabaseBase::factory( 'mssql', [
 461                                         'host' => $this->getVar( 'wgDBserver' ),
 462                                         'user' => $user,
 463                                         'password' => $password,
 464                                         'dbname' => false,
 465                                         'flags' => 0,
 466                                         'tablePrefix' => $this->getVar( 'wgDBprefix' ),
 467                                         'schema' => $this->getVar( 'wgDBmwschema' ),
 468                                 ] );
 469                         } catch ( DBConnectionError $e ) {
 470                                 return Status::newFatal( 'config-connection-error', $e->getMessage() );
 471                         }
 472                 }
 473
 474                 return Status::newGood();
 475         }
 476
 477         public function preInstall() {
 478                 # Add our user callback to installSteps, right before the tables are created.
 479                 $callback = [
 480                         'name' => 'user',
 481                         'callback' => [ $this, 'setupUser' ],
 482                 ];
 483                 $this->parent->addInstallStep( $callback, 'tables' );
 484         }
 485
 486         /**
 487          * @return Status
 488          */
 489         public function setupDatabase() {
 490                 $status = $this->getConnection();
 491                 if ( !$status->isOK() ) {
 492                         return $status;
 493                 }
 494                 /** @var DatabaseBase $conn */
 495                 $conn = $status->value;
 496                 $dbName = $this->getVar( 'wgDBname' );
 497                 $schemaName = $this->getVar( 'wgDBmwschema' );
 498                 if ( !$this->databaseExists( $dbName ) ) {
 499                         $conn->query(
 500                                 "CREATE DATABASE " . $conn->addIdentifierQuotes( $dbName ),
 501                                 __METHOD__
 502                         );
 503                 }
 504                 $conn->selectDB( $dbName );
 505                 if ( !$this->schemaExists( $schemaName ) ) {
 506                         $conn->query(
 507                                 "CREATE SCHEMA " . $conn->addIdentifierQuotes( $schemaName ),
 508                                 __METHOD__
 509                         );
 510                 }
 511                 if ( !$this->catalogExists( $schemaName ) ) {
 512                         $conn->query(
 513                                 "CREATE FULLTEXT CATALOG " . $conn->addIdentifierQuotes( $schemaName ),
 514                                 __METHOD__
 515                         );
 516                 }
 517                 $this->setupSchemaVars();
 518
 519                 return $status;
 520         }
 521
 522         /**
 523          * @return Status
 524          */
 525         public function setupUser() {
 526                 $dbUser = $this->getVar( 'wgDBuser' );
 527                 if ( $dbUser == $this->getVar( '_InstallUser' )
 528                                 || ( $this->getVar( '_InstallWindowsAuthentication' ) == 'windowsauth'
 529                                         && $this->getVar( '_WebWindowsAuthentication' ) == 'windowsauth' ) ) {
 530                         return Status::newGood();
 531                 }
 532                 $status = $this->getConnection();
 533                 if ( !$status->isOK() ) {
 534                         return $status;
 535                 }
 536
 537                 $this->setupSchemaVars();
 538                 $dbName = $this->getVar( 'wgDBname' );
 539                 $this->db->selectDB( $dbName );
 540                 $password = $this->getVar( 'wgDBpassword' );
 541                 $schemaName = $this->getVar( 'wgDBmwschema' );
 542
 543                 if ( $this->getVar( '_WebWindowsAuthentication' ) == 'windowsauth' ) {
 544                         $dbUser = 'windowsauth';
 545                         $password = 'windowsauth';
 546                 }
 547
 548                 if ( $this->getVar( '_CreateDBAccount' ) ) {
 549                         $tryToCreate = true;
 550                 } else {
 551                         $tryToCreate = false;
 552                 }
 553
 554                 $escUser = $this->db->addIdentifierQuotes( $dbUser );
 555                 $escDb = $this->db->addIdentifierQuotes( $dbName );
 556                 $escSchema = $this->db->addIdentifierQuotes( $schemaName );
 557                 $grantableNames = [];
 558                 if ( $tryToCreate ) {
 559                         $escPass = $this->db->addQuotes( $password );
 560
 561                         if ( !$this->loginExists( $dbUser ) ) {
 562                                 try {
 563                                         $this->db->begin();
 564                                         $this->db->selectDB( 'master' );
 565                                         $logintype = $this->getVar( '_WebWindowsAuthentication' ) == 'windowsauth'
 566                                                 ? 'FROM WINDOWS'
 567                                                 : "WITH PASSWORD = $escPass";
 568                                         $this->db->query( "CREATE LOGIN $escUser $logintype" );
 569                                         $this->db->selectDB( $dbName );
 570                                         $this->db->query( "CREATE USER $escUser FOR LOGIN $escUser WITH DEFAULT_SCHEMA = $escSchema" );
 571                                         $this->db->commit();
 572                                         $grantableNames[] = $dbUser;
 573                                 } catch ( DBQueryError $dqe ) {
 574                                         $this->db->rollback();
 575                                         $status->warning( 'config-install-user-create-failed', $dbUser, $dqe->getText() );
 576                                 }
 577                         } elseif ( !$this->userExists( $dbUser ) ) {
 578                                 try {
 579                                         $this->db->begin();
 580                                         $this->db->selectDB( $dbName );
 581                                         $this->db->query( "CREATE USER $escUser FOR LOGIN $escUser WITH DEFAULT_SCHEMA = $escSchema" );
 582                                         $this->db->commit();
 583                                         $grantableNames[] = $dbUser;
 584                                 } catch ( DBQueryError $dqe ) {
 585                                         $this->db->rollback();
 586                                         $status->warning( 'config-install-user-create-failed', $dbUser, $dqe->getText() );
 587                                 }
 588                         } else {
 589                                 $status->warning( 'config-install-user-alreadyexists', $dbUser );
 590                                 $grantableNames[] = $dbUser;
 591                         }
 592                 }
 593
 594                 // Try to grant to all the users we know exist or we were able to create
 595                 $this->db->selectDB( $dbName );
 596                 foreach ( $grantableNames as $name ) {
 597                         try {
 598                                 // First try to grant full permissions
 599                                 $fullPrivArr = [
 600                                         'BACKUP DATABASE', 'BACKUP LOG', 'CREATE FUNCTION', 'CREATE PROCEDURE',
 601                                         'CREATE TABLE', 'CREATE VIEW', 'CREATE FULLTEXT CATALOG', 'SHOWPLAN'
 602                                 ];
 603                                 $fullPrivList = implode( ', ', $fullPrivArr );
 604                                 $this->db->begin();
 605                                 $this->db->query( "GRANT $fullPrivList ON DATABASE :: $escDb TO $escUser", __METHOD__ );
 606                                 $this->db->query( "GRANT CONTROL ON SCHEMA :: $escSchema TO $escUser", __METHOD__ );
 607                                 $this->db->commit();
 608                         } catch ( DBQueryError $dqe ) {
 609                                 // If that fails, try to grant the limited subset specified in $this->webUserPrivs
 610                                 try {
 611                                         $privList = implode( ', ', $this->webUserPrivs );
 612                                         $this->db->rollback();
 613                                         $this->db->begin();
 614                                         $this->db->query( "GRANT $privList ON SCHEMA :: $escSchema TO $escUser", __METHOD__ );
 615                                         $this->db->commit();
 616                                 } catch ( DBQueryError $dqe ) {
 617                                         $this->db->rollback();
 618                                         $status->fatal( 'config-install-user-grant-failed', $dbUser, $dqe->getText() );
 619                                 }
 620                                 // Also try to grant SHOWPLAN on the db, but don't fail if we can't
 621                                 // (just makes a couple things in mediawiki run slower since
 622                                 // we have to run SELECT COUNT(*) instead of getting the query plan)
 623                                 try {
 624                                         $this->db->query( "GRANT SHOWPLAN ON DATABASE :: $escDb TO $escUser", __METHOD__ );
 625                                 } catch ( DBQueryError $dqe ) {
 626                                 }
 627                         }
 628                 }
 629
 630                 return $status;
 631         }
 632
 633         public function createTables() {
 634                 $status = parent::createTables();
 635
 636                 // Do last-minute stuff like fulltext indexes (since they can't be inside a transaction)
 637                 if ( $status->isOK() ) {
 638                         $searchindex = $this->db->tableName( 'searchindex' );
 639                         $schema = $this->db->addIdentifierQuotes( $this->getVar( 'wgDBmwschema' ) );
 640                         try {
 641                                 $this->db->query( "CREATE FULLTEXT INDEX ON $searchindex (si_title, si_text) "
 642                                         . "KEY INDEX si_page ON $schema" );
 643                         } catch ( DBQueryError $dqe ) {
 644                                 $status->fatal( 'config-install-tables-failed', $dqe->getText() );
 645                         }
 646                 }
 647
 648                 return $status;
 649         }
 650
 651         public function getGlobalDefaults() {
 652                 // The default $wgDBmwschema is null, which breaks Postgres and other DBMSes that require
 653                 // the use of a schema, so we need to set it here
 654                 return array_merge( parent::getGlobalDefaults(), [
 655                         'wgDBmwschema' => 'mediawiki',
 656                 ] );
 657         }
 658
 659         /**
 660          * Try to see if the login exists
 661          * @param string $user Username to check
 662          * @return bool
 663          */
 664         private function loginExists( $user ) {
 665                 $res = $this->db->selectField( 'sys.sql_logins', 1, [ 'name' => $user ] );
 666                 return (bool)$res;
 667         }
 668
 669         /**
 670          * Try to see if the user account exists
 671          * We assume we already have the appropriate database selected
 672          * @param string $user Username to check
 673          * @return bool
 674          */
 675         private function userExists( $user ) {
 676                 $res = $this->db->selectField( 'sys.sysusers', 1, [ 'name' => $user ] );
 677                 return (bool)$res;
 678         }
 679
 680         /**
 681          * Try to see if a given database exists
 682          * @param string $dbName Database name to check
 683          * @return bool
 684          */
 685         private function databaseExists( $dbName ) {
 686                 $res = $this->db->selectField( 'sys.databases', 1, [ 'name' => $dbName ] );
 687                 return (bool)$res;
 688         }
 689
 690         /**
 691          * Try to see if a given schema exists
 692          * We assume we already have the appropriate database selected
 693          * @param string $schemaName Schema name to check
 694          * @return bool
 695          */
 696         private function schemaExists( $schemaName ) {
 697                 $res = $this->db->selectField( 'sys.schemas', 1, [ 'name' => $schemaName ] );
 698                 return (bool)$res;
 699         }
 700
 701         /**
 702          * Try to see if a given fulltext catalog exists
 703          * We assume we already have the appropriate database selected
 704          * @param string $catalogName Catalog name to check
 705          * @return bool
 706          */
 707         private function catalogExists( $catalogName ) {
 708                 $res = $this->db->selectField( 'sys.fulltext_catalogs', 1, [ 'name' => $catalogName ] );
 709                 return (bool)$res;
 710         }
 711
 712         /**
 713          * Get variables to substitute into tables.sql and the SQL patch files.
 714          *
 715          * @return array
 716          */
 717         public function getSchemaVars() {
 718                 return [
 719                         'wgDBname' => $this->getVar( 'wgDBname' ),
 720                         'wgDBmwschema' => $this->getVar( 'wgDBmwschema' ),
 721                         'wgDBuser' => $this->getVar( 'wgDBuser' ),
 722                         'wgDBpassword' => $this->getVar( 'wgDBpassword' ),
 723                 ];
 724         }
 725
 726         public function getLocalSettings() {
 727                 $schema = LocalSettingsGenerator::escapePhpString( $this->getVar( 'wgDBmwschema' ) );
 728                 $prefix = LocalSettingsGenerator::escapePhpString( $this->getVar( 'wgDBprefix' ) );
 729                 $windowsauth = $this->getVar( 'wgDBWindowsAuthentication' ) ? 'true' : 'false';
 730
 731                 return "# MSSQL specific settings
 732 \$wgDBWindowsAuthentication = {$windowsauth};
 733 \$wgDBmwschema = \"{$schema}\";
 734 \$wgDBprefix = \"{$prefix}\";";
 735         }
 736 }