includes/installer/WebInstallerPage.php

   1 <?php
   2 /**
   3  * Base code for web installer pages.
   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  * Abstract class to define pages for the web installer.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.17
  29  */
  30 abstract class WebInstallerPage {
  31
  32         /**
  33          * The WebInstaller object this WebInstallerPage belongs to.
  34          *
  35          * @var WebInstaller
  36          */
  37         public $parent;
  38
  39         /**
  40          * @return string
  41          */
  42         abstract public function execute();
  43
  44         /**
  45          * @param WebInstaller $parent
  46          */
  47         public function __construct( WebInstaller $parent ) {
  48                 $this->parent = $parent;
  49         }
  50
  51         /**
  52          * Is this a slow-running page in the installer? If so, WebInstaller will
  53          * set_time_limit(0) before calling execute(). Right now this only applies
  54          * to Install and Upgrade pages
  55          *
  56          * @return bool Always false in this default implementation.
  57          */
  58         public function isSlow() {
  59                 return false;
  60         }
  61
  62         /**
  63          * @param string $html
  64          */
  65         public function addHTML( $html ) {
  66                 $this->parent->output->addHTML( $html );
  67         }
  68
  69         public function startForm() {
  70                 $this->addHTML(
  71                         "<div class=\"config-section\">\n" .
  72                         Html::openElement(
  73                                 'form',
  74                                 array(
  75                                         'method' => 'post',
  76                                         'action' => $this->parent->getUrl( array( 'page' => $this->getName() ) )
  77                                 )
  78                         ) . "\n"
  79                 );
  80         }
  81
  82         /**
  83          * @param string|bool $continue
  84          * @param string|bool $back
  85          */
  86         public function endForm( $continue = 'continue', $back = 'back' ) {
  87                 $s = "<div class=\"config-submit\">\n";
  88                 $id = $this->getId();
  89
  90                 if ( $id === false ) {
  91                         $s .= Html::hidden( 'lastPage', $this->parent->request->getVal( 'lastPage' ) );
  92                 }
  93
  94                 if ( $continue ) {
  95                         // Fake submit button for enter keypress (bug 26267)
  96                         // Messages: config-continue, config-restart, config-regenerate
  97                         $s .= Xml::submitButton(
  98                                 wfMessage( "config-$continue" )->text(),
  99                                 array(
 100                                         'name' => "enter-$continue",
 101                                         'style' => 'visibility:hidden;overflow:hidden;width:1px;margin:0'
 102                                 )
 103                         ) . "\n";
 104                 }
 105
 106                 if ( $back ) {
 107                         // Message: config-back
 108                         $s .= Xml::submitButton(
 109                                 wfMessage( "config-$back" )->text(),
 110                                 array(
 111                                         'name' => "submit-$back",
 112                                         'tabindex' => $this->parent->nextTabIndex()
 113                                 )
 114                         ) . "\n";
 115                 }
 116
 117                 if ( $continue ) {
 118                         // Messages: config-continue, config-restart, config-regenerate
 119                         $s .= Xml::submitButton(
 120                                 wfMessage( "config-$continue" )->text(),
 121                                 array(
 122                                         'name' => "submit-$continue",
 123                                         'tabindex' => $this->parent->nextTabIndex(),
 124                                 )
 125                         ) . "\n";
 126                 }
 127
 128                 $s .= "</div></form></div>\n";
 129                 $this->addHTML( $s );
 130         }
 131
 132         /**
 133          * @return string
 134          */
 135         public function getName() {
 136                 return str_replace( 'WebInstaller', '', get_class( $this ) );
 137         }
 138
 139         /**
 140          * @return string
 141          */
 142         protected function getId() {
 143                 return array_search( $this->getName(), $this->parent->pageSequence );
 144         }
 145
 146         /**
 147          * @param string $var
 148          *
 149          * @return mixed
 150          */
 151         public function getVar( $var ) {
 152                 return $this->parent->getVar( $var );
 153         }
 154
 155         /**
 156          * @param string $name
 157          * @param mixed $value
 158          */
 159         public function setVar( $name, $value ) {
 160                 $this->parent->setVar( $name, $value );
 161         }
 162
 163         /**
 164          * Get the starting tags of a fieldset.
 165          *
 166          * @param string $legend message name
 167          *
 168          * @return string
 169          */
 170         protected function getFieldsetStart( $legend ) {
 171                 return "\n<fieldset><legend>" . wfMessage( $legend )->escaped() . "</legend>\n";
 172         }
 173
 174         /**
 175          * Get the end tag of a fieldset.
 176          *
 177          * @return string
 178          */
 179         protected function getFieldsetEnd() {
 180                 return "</fieldset>\n";
 181         }
 182
 183         /**
 184          * Opens a textarea used to display the progress of a long operation
 185          */
 186         protected function startLiveBox() {
 187                 $this->addHTML(
 188                         '<div id="config-spinner" style="display:none;">' .
 189                         '<img src="../skins/common/images/ajax-loader.gif" /></div>' .
 190                         '<script>jQuery( "#config-spinner" ).show();</script>' .
 191                         '<div id="config-live-log">' .
 192                         '<textarea name="LiveLog" rows="10" cols="30" readonly="readonly">'
 193                 );
 194                 $this->parent->output->flush();
 195         }
 196
 197         /**
 198          * Opposite to WebInstallerPage::startLiveBox
 199          */
 200         protected function endLiveBox() {
 201                 $this->addHTML( '</textarea></div>
 202 <script>jQuery( "#config-spinner" ).hide()</script>' );
 203                 $this->parent->output->flush();
 204         }
 205
 206 }
 207
 208 class WebInstallerLanguage extends WebInstallerPage {
 209
 210         /**
 211          * @return string|null
 212          */
 213         public function execute() {
 214                 global $wgLang;
 215                 $r = $this->parent->request;
 216                 $userLang = $r->getVal( 'uselang' );
 217                 $contLang = $r->getVal( 'ContLang' );
 218
 219                 $languages = Language::fetchLanguageNames();
 220                 $lifetime = intval( ini_get( 'session.gc_maxlifetime' ) );
 221                 if ( !$lifetime ) {
 222                         $lifetime = 1440; // PHP default
 223                 }
 224
 225                 if ( $r->wasPosted() ) {
 226                         # Do session test
 227                         if ( $this->parent->getSession( 'test' ) === null ) {
 228                                 $requestTime = $r->getVal( 'LanguageRequestTime' );
 229                                 if ( !$requestTime ) {
 230                                         // The most likely explanation is that the user was knocked back
 231                                         // from another page on POST due to session expiry
 232                                         $msg = 'config-session-expired';
 233                                 } elseif ( time() - $requestTime > $lifetime ) {
 234                                         $msg = 'config-session-expired';
 235                                 } else {
 236                                         $msg = 'config-no-session';
 237                                 }
 238                                 $this->parent->showError( $msg, $wgLang->formatTimePeriod( $lifetime ) );
 239                         } else {
 240                                 if ( isset( $languages[$userLang] ) ) {
 241                                         $this->setVar( '_UserLang', $userLang );
 242                                 }
 243                                 if ( isset( $languages[$contLang] ) ) {
 244                                         $this->setVar( 'wgLanguageCode', $contLang );
 245                                 }
 246
 247                                 return 'continue';
 248                         }
 249                 } elseif ( $this->parent->showSessionWarning ) {
 250                         # The user was knocked back from another page to the start
 251                         # This probably indicates a session expiry
 252                         $this->parent->showError( 'config-session-expired',
 253                                 $wgLang->formatTimePeriod( $lifetime ) );
 254                 }
 255
 256                 $this->parent->setSession( 'test', true );
 257
 258                 if ( !isset( $languages[$userLang] ) ) {
 259                         $userLang = $this->getVar( '_UserLang', 'en' );
 260                 }
 261                 if ( !isset( $languages[$contLang] ) ) {
 262                         $contLang = $this->getVar( 'wgLanguageCode', 'en' );
 263                 }
 264                 $this->startForm();
 265                 $s = Html::hidden( 'LanguageRequestTime', time() ) .
 266                         $this->getLanguageSelector( 'uselang', 'config-your-language', $userLang,
 267                                 $this->parent->getHelpBox( 'config-your-language-help' ) ) .
 268                         $this->getLanguageSelector( 'ContLang', 'config-wiki-language', $contLang,
 269                                 $this->parent->getHelpBox( 'config-wiki-language-help' ) );
 270                 $this->addHTML( $s );
 271                 $this->endForm( 'continue', false );
 272
 273                 return null;
 274         }
 275
 276         /**
 277          * Get a "<select>" for selecting languages.
 278          *
 279          * @param string $name
 280          * @param string $label
 281          * @param string $selectedCode
 282          * @param string $helpHtml
 283          *
 284          * @return string
 285          */
 286         public function getLanguageSelector( $name, $label, $selectedCode, $helpHtml = '' ) {
 287                 global $wgDummyLanguageCodes;
 288
 289                 $s = $helpHtml;
 290
 291                 $s .= Html::openElement( 'select', array( 'id' => $name, 'name' => $name,
 292                                 'tabindex' => $this->parent->nextTabIndex() ) ) . "\n";
 293
 294                 $languages = Language::fetchLanguageNames();
 295                 ksort( $languages );
 296                 foreach ( $languages as $code => $lang ) {
 297                         if ( isset( $wgDummyLanguageCodes[$code] ) ) {
 298                                 continue;
 299                         }
 300                         $s .= "\n" . Xml::option( "$code - $lang", $code, $code == $selectedCode );
 301                 }
 302                 $s .= "\n</select>\n";
 303
 304                 return $this->parent->label( $label, $name, $s );
 305         }
 306
 307 }
 308
 309 class WebInstallerExistingWiki extends WebInstallerPage {
 310
 311         /**
 312          * @return string
 313          */
 314         public function execute() {
 315                 // If there is no LocalSettings.php, continue to the installer welcome page
 316                 $vars = Installer::getExistingLocalSettings();
 317                 if ( !$vars ) {
 318                         return 'skip';
 319                 }
 320
 321                 // Check if the upgrade key supplied to the user has appeared in LocalSettings.php
 322                 if ( $vars['wgUpgradeKey'] !== false
 323                         && $this->getVar( '_UpgradeKeySupplied' )
 324                         && $this->getVar( 'wgUpgradeKey' ) === $vars['wgUpgradeKey']
 325                 ) {
 326                         // It's there, so the user is authorized
 327                         $status = $this->handleExistingUpgrade( $vars );
 328                         if ( $status->isOK() ) {
 329                                 return 'skip';
 330                         } else {
 331                                 $this->startForm();
 332                                 $this->parent->showStatusBox( $status );
 333                                 $this->endForm( 'continue' );
 334
 335                                 return 'output';
 336                         }
 337                 }
 338
 339                 // If there is no $wgUpgradeKey, tell the user to add one to LocalSettings.php
 340                 if ( $vars['wgUpgradeKey'] === false ) {
 341                         if ( $this->getVar( 'wgUpgradeKey', false ) === false ) {
 342                                 $secretKey = $this->getVar( 'wgSecretKey' ); // preserve $wgSecretKey
 343                                 $this->parent->generateKeys();
 344                                 $this->setVar( 'wgSecretKey', $secretKey );
 345                                 $this->setVar( '_UpgradeKeySupplied', true );
 346                         }
 347                         $this->startForm();
 348                         $this->addHTML( $this->parent->getInfoBox(
 349                                 wfMessage( 'config-upgrade-key-missing', "<pre dir=\"ltr\">\$wgUpgradeKey = '" .
 350                                         $this->getVar( 'wgUpgradeKey' ) . "';</pre>" )->plain()
 351                         ) );
 352                         $this->endForm( 'continue' );
 353
 354                         return 'output';
 355                 }
 356
 357                 // If there is an upgrade key, but it wasn't supplied, prompt the user to enter it
 358
 359                 $r = $this->parent->request;
 360                 if ( $r->wasPosted() ) {
 361                         $key = $r->getText( 'config_wgUpgradeKey' );
 362                         if ( !$key || $key !== $vars['wgUpgradeKey'] ) {
 363                                 $this->parent->showError( 'config-localsettings-badkey' );
 364                                 $this->showKeyForm();
 365
 366                                 return 'output';
 367                         }
 368                         // Key was OK
 369                         $status = $this->handleExistingUpgrade( $vars );
 370                         if ( $status->isOK() ) {
 371                                 return 'continue';
 372                         } else {
 373                                 $this->parent->showStatusBox( $status );
 374                                 $this->showKeyForm();
 375
 376                                 return 'output';
 377                         }
 378                 } else {
 379                         $this->showKeyForm();
 380
 381                         return 'output';
 382                 }
 383         }
 384
 385         /**
 386          * Show the "enter key" form
 387          */
 388         protected function showKeyForm() {
 389                 $this->startForm();
 390                 $this->addHTML(
 391                         $this->parent->getInfoBox( wfMessage( 'config-localsettings-upgrade' )->plain() ) .
 392                         '<br />' .
 393                         $this->parent->getTextBox( array(
 394                                 'var' => 'wgUpgradeKey',
 395                                 'label' => 'config-localsettings-key',
 396                                 'attribs' => array( 'autocomplete' => 'off' ),
 397                         ) )
 398                 );
 399                 $this->endForm( 'continue' );
 400         }
 401
 402         /**
 403          * @param string[] $names
 404          * @param mixed[] $vars
 405          *
 406          * @return Status
 407          */
 408         protected function importVariables( $names, $vars ) {
 409                 $status = Status::newGood();
 410                 foreach ( $names as $name ) {
 411                         if ( !isset( $vars[$name] ) ) {
 412                                 $status->fatal( 'config-localsettings-incomplete', $name );
 413                         }
 414                         $this->setVar( $name, $vars[$name] );
 415                 }
 416
 417                 return $status;
 418         }
 419
 420         /**
 421          * Initiate an upgrade of the existing database
 422          *
 423          * @param mixed[] $vars Variables from LocalSettings.php
 424          *
 425          * @return Status
 426          */
 427         protected function handleExistingUpgrade( $vars ) {
 428                 // Check $wgDBtype
 429                 if ( !isset( $vars['wgDBtype'] ) ||
 430                         !in_array( $vars['wgDBtype'], Installer::getDBTypes() )
 431                 ) {
 432                         return Status::newFatal( 'config-localsettings-connection-error', '' );
 433                 }
 434
 435                 // Set the relevant variables from LocalSettings.php
 436                 $requiredVars = array( 'wgDBtype' );
 437                 $status = $this->importVariables( $requiredVars, $vars );
 438                 $installer = $this->parent->getDBInstaller();
 439                 $status->merge( $this->importVariables( $installer->getGlobalNames(), $vars ) );
 440                 if ( !$status->isOK() ) {
 441                         return $status;
 442                 }
 443
 444                 if ( isset( $vars['wgDBadminuser'] ) ) {
 445                         $this->setVar( '_InstallUser', $vars['wgDBadminuser'] );
 446                 } else {
 447                         $this->setVar( '_InstallUser', $vars['wgDBuser'] );
 448                 }
 449                 if ( isset( $vars['wgDBadminpassword'] ) ) {
 450                         $this->setVar( '_InstallPassword', $vars['wgDBadminpassword'] );
 451                 } else {
 452                         $this->setVar( '_InstallPassword', $vars['wgDBpassword'] );
 453                 }
 454
 455                 // Test the database connection
 456                 $status = $installer->getConnection();
 457                 if ( !$status->isOK() ) {
 458                         // Adjust the error message to explain things correctly
 459                         $status->replaceMessage( 'config-connection-error',
 460                                 'config-localsettings-connection-error' );
 461
 462                         return $status;
 463                 }
 464
 465                 // All good
 466                 $this->setVar( '_ExistingDBSettings', true );
 467
 468                 return $status;
 469         }
 470
 471 }
 472
 473 class WebInstallerWelcome extends WebInstallerPage {
 474
 475         /**
 476          * @return string
 477          */
 478         public function execute() {
 479                 if ( $this->parent->request->wasPosted() ) {
 480                         if ( $this->getVar( '_Environment' ) ) {
 481                                 return 'continue';
 482                         }
 483                 }
 484                 $this->parent->output->addWikiText( wfMessage( 'config-welcome' )->plain() );
 485                 $status = $this->parent->doEnvironmentChecks();
 486                 if ( $status->isGood() ) {
 487                         $this->parent->output->addHTML( '<span class="success-message">' .
 488                                 wfMessage( 'config-env-good' )->escaped() . '</span>' );
 489                         $this->parent->output->addWikiText( wfMessage( 'config-copyright',
 490                                 SpecialVersion::getCopyrightAndAuthorList() )->plain() );
 491                         $this->startForm();
 492                         $this->endForm();
 493                 } else {
 494                         $this->parent->showStatusMessage( $status );
 495                 }
 496
 497                 return '';
 498         }
 499
 500 }
 501
 502 class WebInstallerDBConnect extends WebInstallerPage {
 503
 504         /**
 505          * @return string|null When string, "skip" or "continue"
 506          */
 507         public function execute() {
 508                 if ( $this->getVar( '_ExistingDBSettings' ) ) {
 509                         return 'skip';
 510                 }
 511
 512                 $r = $this->parent->request;
 513                 if ( $r->wasPosted() ) {
 514                         $status = $this->submit();
 515
 516                         if ( $status->isGood() ) {
 517                                 $this->setVar( '_UpgradeDone', false );
 518
 519                                 return 'continue';
 520                         } else {
 521                                 $this->parent->showStatusBox( $status );
 522                         }
 523                 }
 524
 525                 $this->startForm();
 526
 527                 $types = "<ul class=\"config-settings-block\">\n";
 528                 $settings = '';
 529                 $defaultType = $this->getVar( 'wgDBtype' );
 530
 531                 // Messages: config-dbsupport-mysql, config-dbsupport-postgres, config-dbsupport-oracle,
 532                 // config-dbsupport-sqlite, config-dbsupport-mssql
 533                 $dbSupport = '';
 534                 foreach ( Installer::getDBTypes() as $type ) {
 535                         $dbSupport .= wfMessage( "config-dbsupport-$type" )->plain() . "\n";
 536                 }
 537                 $this->addHTML( $this->parent->getInfoBox(
 538                         wfMessage( 'config-support-info', trim( $dbSupport ) )->text() ) );
 539
 540                 // It's possible that the library for the default DB type is not compiled in.
 541                 // In that case, instead select the first supported DB type in the list.
 542                 $compiledDBs = $this->parent->getCompiledDBs();
 543                 if ( !in_array( $defaultType, $compiledDBs ) ) {
 544                         $defaultType = $compiledDBs[0];
 545                 }
 546
 547                 foreach ( $compiledDBs as $type ) {
 548                         $installer = $this->parent->getDBInstaller( $type );
 549                         $types .=
 550                                 '<li>' .
 551                                 Xml::radioLabel(
 552                                         $installer->getReadableName(),
 553                                         'DBType',
 554                                         $type,
 555                                         "DBType_$type",
 556                                         $type == $defaultType,
 557                                         array( 'class' => 'dbRadio', 'rel' => "DB_wrapper_$type" )
 558                                 ) .
 559                                 "</li>\n";
 560
 561                         // Messages: config-header-mysql, config-header-postgres, config-header-oracle,
 562                         // config-header-sqlite
 563                         $settings .= Html::openElement(
 564                                         'div',
 565                                         array(
 566                                                 'id' => 'DB_wrapper_' . $type,
 567                                                 'class' => 'dbWrapper'
 568                                         )
 569                                 ) .
 570                                 Html::element( 'h3', array(), wfMessage( 'config-header-' . $type )->text() ) .
 571                                 $installer->getConnectForm() .
 572                                 "</div>\n";
 573                 }
 574
 575                 $types .= "</ul><br style=\"clear: left\"/>\n";
 576
 577                 $this->addHTML( $this->parent->label( 'config-db-type', false, $types ) . $settings );
 578                 $this->endForm();
 579
 580                 return null;
 581         }
 582
 583         /**
 584          * @return Status
 585          */
 586         public function submit() {
 587                 $r = $this->parent->request;
 588                 $type = $r->getVal( 'DBType' );
 589                 if ( !$type ) {
 590                         return Status::newFatal( 'config-invalid-db-type' );
 591                 }
 592                 $this->setVar( 'wgDBtype', $type );
 593                 $installer = $this->parent->getDBInstaller( $type );
 594                 if ( !$installer ) {
 595                         return Status::newFatal( 'config-invalid-db-type' );
 596                 }
 597
 598                 return $installer->submitConnectForm();
 599         }
 600
 601 }
 602
 603 class WebInstallerUpgrade extends WebInstallerPage {
 604
 605         /**
 606          * @return bool Always true.
 607          */
 608         public function isSlow() {
 609                 return true;
 610         }
 611
 612         /**
 613          * @return string|null
 614          */
 615         public function execute() {
 616                 if ( $this->getVar( '_UpgradeDone' ) ) {
 617                         // Allow regeneration of LocalSettings.php, unless we are working
 618                         // from a pre-existing LocalSettings.php file and we want to avoid
 619                         // leaking its contents
 620                         if ( $this->parent->request->wasPosted() && !$this->getVar( '_ExistingDBSettings' ) ) {
 621                                 // Done message acknowledged
 622                                 return 'continue';
 623                         } else {
 624                                 // Back button click
 625                                 // Show the done message again
 626                                 // Make them click back again if they want to do the upgrade again
 627                                 $this->showDoneMessage();
 628
 629                                 return 'output';
 630                         }
 631                 }
 632
 633                 // wgDBtype is generally valid here because otherwise the previous page
 634                 // (connect) wouldn't have declared its happiness
 635                 $type = $this->getVar( 'wgDBtype' );
 636                 $installer = $this->parent->getDBInstaller( $type );
 637
 638                 if ( !$installer->needsUpgrade() ) {
 639                         return 'skip';
 640                 }
 641
 642                 if ( $this->parent->request->wasPosted() ) {
 643                         $installer->preUpgrade();
 644
 645                         $this->startLiveBox();
 646                         $result = $installer->doUpgrade();
 647                         $this->endLiveBox();
 648
 649                         if ( $result ) {
 650                                 // If they're going to possibly regenerate LocalSettings, we
 651                                 // need to create the upgrade/secret keys. Bug 26481
 652                                 if ( !$this->getVar( '_ExistingDBSettings' ) ) {
 653                                         $this->parent->generateKeys();
 654                                 }
 655                                 $this->setVar( '_UpgradeDone', true );
 656                                 $this->showDoneMessage();
 657
 658                                 return 'output';
 659                         }
 660                 }
 661
 662                 $this->startForm();
 663                 $this->addHTML( $this->parent->getInfoBox(
 664                         wfMessage( 'config-can-upgrade', $GLOBALS['wgVersion'] )->plain() ) );
 665                 $this->endForm();
 666
 667                 return null;
 668         }
 669
 670         public function showDoneMessage() {
 671                 $this->startForm();
 672                 $regenerate = !$this->getVar( '_ExistingDBSettings' );
 673                 if ( $regenerate ) {
 674                         $msg = 'config-upgrade-done';
 675                 } else {
 676                         $msg = 'config-upgrade-done-no-regenerate';
 677                 }
 678                 $this->parent->disableLinkPopups();
 679                 $this->addHTML(
 680                         $this->parent->getInfoBox(
 681                                 wfMessage( $msg,
 682                                         $this->getVar( 'wgServer' ) .
 683                                         $this->getVar( 'wgScriptPath' ) . '/index' .
 684                                         $this->getVar( 'wgScriptExtension' )
 685                                 )->plain(), 'tick-32.png'
 686                         )
 687                 );
 688                 $this->parent->restoreLinkPopups();
 689                 $this->endForm( $regenerate ? 'regenerate' : false, false );
 690         }
 691
 692 }
 693
 694 class WebInstallerDBSettings extends WebInstallerPage {
 695
 696         /**
 697          * @return string|null
 698          */
 699         public function execute() {
 700                 $installer = $this->parent->getDBInstaller( $this->getVar( 'wgDBtype' ) );
 701
 702                 $r = $this->parent->request;
 703                 if ( $r->wasPosted() ) {
 704                         $status = $installer->submitSettingsForm();
 705                         if ( $status === false ) {
 706                                 return 'skip';
 707                         } elseif ( $status->isGood() ) {
 708                                 return 'continue';
 709                         } else {
 710                                 $this->parent->showStatusBox( $status );
 711                         }
 712                 }
 713
 714                 $form = $installer->getSettingsForm();
 715                 if ( $form === false ) {
 716                         return 'skip';
 717                 }
 718
 719                 $this->startForm();
 720                 $this->addHTML( $form );
 721                 $this->endForm();
 722
 723                 return null;
 724         }
 725
 726 }
 727
 728 class WebInstallerName extends WebInstallerPage {
 729
 730         /**
 731          * @return string
 732          */
 733         public function execute() {
 734                 $r = $this->parent->request;
 735                 if ( $r->wasPosted() ) {
 736                         if ( $this->submit() ) {
 737                                 return 'continue';
 738                         }
 739                 }
 740
 741                 $this->startForm();
 742
 743                 // Encourage people to not name their site 'MediaWiki' by blanking the
 744                 // field. I think that was the intent with the original $GLOBALS['wgSitename']
 745                 // but these two always were the same so had the effect of making the
 746                 // installer forget $wgSitename when navigating back to this page.
 747                 if ( $this->getVar( 'wgSitename' ) == 'MediaWiki' ) {
 748                         $this->setVar( 'wgSitename', '' );
 749                 }
 750
 751                 // Set wgMetaNamespace to something valid before we show the form.
 752                 // $wgMetaNamespace defaults to $wgSiteName which is 'MediaWiki'
 753                 $metaNS = $this->getVar( 'wgMetaNamespace' );
 754                 $this->setVar(
 755                         'wgMetaNamespace',
 756                         wfMessage( 'config-ns-other-default' )->inContentLanguage()->text()
 757                 );
 758
 759                 $this->addHTML(
 760                         $this->parent->getTextBox( array(
 761                                 'var' => 'wgSitename',
 762                                 'label' => 'config-site-name',
 763                                 'help' => $this->parent->getHelpBox( 'config-site-name-help' )
 764                         ) ) .
 765                         // getRadioSet() builds a set of labeled radio buttons.
 766                         // For grep: The following messages are used as the item labels:
 767                         // config-ns-site-name, config-ns-generic, config-ns-other
 768                         $this->parent->getRadioSet( array(
 769                                 'var' => '_NamespaceType',
 770                                 'label' => 'config-project-namespace',
 771                                 'itemLabelPrefix' => 'config-ns-',
 772                                 'values' => array( 'site-name', 'generic', 'other' ),
 773                                 'commonAttribs' => array( 'class' => 'enableForOther',
 774                                         'rel' => 'config_wgMetaNamespace' ),
 775                                 'help' => $this->parent->getHelpBox( 'config-project-namespace-help' )
 776                         ) ) .
 777                         $this->parent->getTextBox( array(
 778                                 'var' => 'wgMetaNamespace',
 779                                 'label' => '', // @todo Needs a label?
 780                                 'attribs' => array( 'readonly' => 'readonly', 'class' => 'enabledByOther' )
 781                         ) ) .
 782                         $this->getFieldSetStart( 'config-admin-box' ) .
 783                         $this->parent->getTextBox( array(
 784                                 'var' => '_AdminName',
 785                                 'label' => 'config-admin-name',
 786                                 'help' => $this->parent->getHelpBox( 'config-admin-help' )
 787                         ) ) .
 788                         $this->parent->getPasswordBox( array(
 789                                 'var' => '_AdminPassword',
 790                                 'label' => 'config-admin-password',
 791                         ) ) .
 792                         $this->parent->getPasswordBox( array(
 793                                 'var' => '_AdminPasswordConfirm',
 794                                 'label' => 'config-admin-password-confirm'
 795                         ) ) .
 796                         $this->parent->getTextBox( array(
 797                                 'var' => '_AdminEmail',
 798                                 'label' => 'config-admin-email',
 799                                 'help' => $this->parent->getHelpBox( 'config-admin-email-help' )
 800                         ) ) .
 801                         $this->parent->getCheckBox( array(
 802                                 'var' => '_Subscribe',
 803                                 'label' => 'config-subscribe',
 804                                 'help' => $this->parent->getHelpBox( 'config-subscribe-help' )
 805                         ) ) .
 806                         $this->getFieldSetEnd() .
 807                         $this->parent->getInfoBox( wfMessage( 'config-almost-done' )->text() ) .
 808                         // getRadioSet() builds a set of labeled radio buttons.
 809                         // For grep: The following messages are used as the item labels:
 810                         // config-optional-continue, config-optional-skip
 811                         $this->parent->getRadioSet( array(
 812                                 'var' => '_SkipOptional',
 813                                 'itemLabelPrefix' => 'config-optional-',
 814                                 'values' => array( 'continue', 'skip' )
 815                         ) )
 816                 );
 817
 818                 // Restore the default value
 819                 $this->setVar( 'wgMetaNamespace', $metaNS );
 820
 821                 $this->endForm();
 822
 823                 return 'output';
 824         }
 825
 826         /**
 827          * @return bool
 828          */
 829         public function submit() {
 830                 $retVal = true;
 831                 $this->parent->setVarsFromRequest( array( 'wgSitename', '_NamespaceType',
 832                         '_AdminName', '_AdminPassword', '_AdminPasswordConfirm', '_AdminEmail',
 833                         '_Subscribe', '_SkipOptional', 'wgMetaNamespace' ) );
 834
 835                 // Validate site name
 836                 if ( strval( $this->getVar( 'wgSitename' ) ) === '' ) {
 837                         $this->parent->showError( 'config-site-name-blank' );
 838                         $retVal = false;
 839                 }
 840
 841                 // Fetch namespace
 842                 $nsType = $this->getVar( '_NamespaceType' );
 843                 if ( $nsType == 'site-name' ) {
 844                         $name = $this->getVar( 'wgSitename' );
 845                         // Sanitize for namespace
 846                         // This algorithm should match the JS one in WebInstallerOutput.php
 847                         $name = preg_replace( '/[\[\]\{\}|#<>%+? ]/', '_', $name );
 848                         $name = str_replace( '&', '&amp;', $name );
 849                         $name = preg_replace( '/__+/', '_', $name );
 850                         $name = ucfirst( trim( $name, '_' ) );
 851                 } elseif ( $nsType == 'generic' ) {
 852                         $name = wfMessage( 'config-ns-generic' )->text();
 853                 } else { // other
 854                         $name = $this->getVar( 'wgMetaNamespace' );
 855                 }
 856
 857                 // Validate namespace
 858                 if ( strpos( $name, ':' ) !== false ) {
 859                         $good = false;
 860                 } else {
 861                         // Title-style validation
 862                         $title = Title::newFromText( $name );
 863                         if ( !$title ) {
 864                                 $good = $nsType == 'site-name';
 865                         } else {
 866                                 $name = $title->getDBkey();
 867                                 $good = true;
 868                         }
 869                 }
 870                 if ( !$good ) {
 871                         $this->parent->showError( 'config-ns-invalid', $name );
 872                         $retVal = false;
 873                 }
 874
 875                 // Make sure it won't conflict with any existing namespaces
 876                 global $wgContLang;
 877                 $nsIndex = $wgContLang->getNsIndex( $name );
 878                 if ( $nsIndex !== false && $nsIndex !== NS_PROJECT ) {
 879                         $this->parent->showError( 'config-ns-conflict', $name );
 880                         $retVal = false;
 881                 }
 882
 883                 $this->setVar( 'wgMetaNamespace', $name );
 884
 885                 // Validate username for creation
 886                 $name = $this->getVar( '_AdminName' );
 887                 if ( strval( $name ) === '' ) {
 888                         $this->parent->showError( 'config-admin-name-blank' );
 889                         $cname = $name;
 890                         $retVal = false;
 891                 } else {
 892                         $cname = User::getCanonicalName( $name, 'creatable' );
 893                         if ( $cname === false ) {
 894                                 $this->parent->showError( 'config-admin-name-invalid', $name );
 895                                 $retVal = false;
 896                         } else {
 897                                 $this->setVar( '_AdminName', $cname );
 898                         }
 899                 }
 900
 901                 // Validate password
 902                 $msg = false;
 903                 $pwd = $this->getVar( '_AdminPassword' );
 904                 $user = User::newFromName( $cname );
 905                 if ( $user ) {
 906                         $valid = $user->getPasswordValidity( $pwd );
 907                 } else {
 908                         $valid = 'config-admin-name-invalid';
 909                 }
 910                 if ( strval( $pwd ) === '' ) {
 911                         # $user->getPasswordValidity just checks for $wgMinimalPasswordLength.
 912                         # This message is more specific and helpful.
 913                         $msg = 'config-admin-password-blank';
 914                 } elseif ( $pwd !== $this->getVar( '_AdminPasswordConfirm' ) ) {
 915                         $msg = 'config-admin-password-mismatch';
 916                 } elseif ( $valid !== true ) {
 917                         $msg = $valid;
 918                 }
 919                 if ( $msg !== false ) {
 920                         call_user_func_array( array( $this->parent, 'showError' ), (array)$msg );
 921                         $this->setVar( '_AdminPassword', '' );
 922                         $this->setVar( '_AdminPasswordConfirm', '' );
 923                         $retVal = false;
 924                 }
 925
 926                 // Validate e-mail if provided
 927                 $email = $this->getVar( '_AdminEmail' );
 928                 if ( $email && !Sanitizer::validateEmail( $email ) ) {
 929                         $this->parent->showError( 'config-admin-error-bademail' );
 930                         $retVal = false;
 931                 }
 932                 // If they asked to subscribe to mediawiki-announce but didn't give
 933                 // an e-mail, show an error. Bug 29332
 934                 if ( !$email && $this->getVar( '_Subscribe' ) ) {
 935                         $this->parent->showError( 'config-subscribe-noemail' );
 936                         $retVal = false;
 937                 }
 938
 939                 return $retVal;
 940         }
 941
 942 }
 943
 944 class WebInstallerOptions extends WebInstallerPage {
 945
 946         /**
 947          * @return string|null
 948          */
 949         public function execute() {
 950                 if ( $this->getVar( '_SkipOptional' ) == 'skip' ) {
 951                         return 'skip';
 952                 }
 953                 if ( $this->parent->request->wasPosted() ) {
 954                         if ( $this->submit() ) {
 955                                 return 'continue';
 956                         }
 957                 }
 958
 959                 $emailwrapperStyle = $this->getVar( 'wgEnableEmail' ) ? '' : 'display: none';
 960                 $this->startForm();
 961                 $this->addHTML(
 962                         # User Rights
 963                         // getRadioSet() builds a set of labeled radio buttons.
 964                         // For grep: The following messages are used as the item labels:
 965                         // config-profile-wiki, config-profile-no-anon, config-profile-fishbowl, config-profile-private
 966                         $this->parent->getRadioSet( array(
 967                                 'var' => '_RightsProfile',
 968                                 'label' => 'config-profile',
 969                                 'itemLabelPrefix' => 'config-profile-',
 970                                 'values' => array_keys( $this->parent->rightsProfiles ),
 971                         ) ) .
 972                         $this->parent->getInfoBox( wfMessage( 'config-profile-help' )->plain() ) .
 973
 974                         # Licensing
 975                         // getRadioSet() builds a set of labeled radio buttons.
 976                         // For grep: The following messages are used as the item labels:
 977                         // config-license-cc-by, config-license-cc-by-sa, config-license-cc-by-nc-sa,
 978                         // config-license-cc-0, config-license-pd, config-license-gfdl,
 979                         // config-license-none, config-license-cc-choose
 980                         $this->parent->getRadioSet( array(
 981                                 'var' => '_LicenseCode',
 982                                 'label' => 'config-license',
 983                                 'itemLabelPrefix' => 'config-license-',
 984                                 'values' => array_keys( $this->parent->licenses ),
 985                                 'commonAttribs' => array( 'class' => 'licenseRadio' ),
 986                         ) ) .
 987                         $this->getCCChooser() .
 988                         $this->parent->getHelpBox( 'config-license-help' ) .
 989
 990                         # E-mail
 991                         $this->getFieldSetStart( 'config-email-settings' ) .
 992                         $this->parent->getCheckBox( array(
 993                                 'var' => 'wgEnableEmail',
 994                                 'label' => 'config-enable-email',
 995                                 'attribs' => array( 'class' => 'showHideRadio', 'rel' => 'emailwrapper' ),
 996                         ) ) .
 997                         $this->parent->getHelpBox( 'config-enable-email-help' ) .
 998                         "<div id=\"emailwrapper\" style=\"$emailwrapperStyle\">" .
 999                         $this->parent->getTextBox( array(
1000                                 'var' => 'wgPasswordSender',
1001                                 'label' => 'config-email-sender'
1002                         ) ) .
1003                         $this->parent->getHelpBox( 'config-email-sender-help' ) .
1004                         $this->parent->getCheckBox( array(
1005                                 'var' => 'wgEnableUserEmail',
1006                                 'label' => 'config-email-user',
1007                         ) ) .
1008                         $this->parent->getHelpBox( 'config-email-user-help' ) .
1009                         $this->parent->getCheckBox( array(
1010                                 'var' => 'wgEnotifUserTalk',
1011                                 'label' => 'config-email-usertalk',
1012                         ) ) .
1013                         $this->parent->getHelpBox( 'config-email-usertalk-help' ) .
1014                         $this->parent->getCheckBox( array(
1015                                 'var' => 'wgEnotifWatchlist',
1016                                 'label' => 'config-email-watchlist',
1017                         ) ) .
1018                         $this->parent->getHelpBox( 'config-email-watchlist-help' ) .
1019                         $this->parent->getCheckBox( array(
1020                                 'var' => 'wgEmailAuthentication',
1021                                 'label' => 'config-email-auth',
1022                         ) ) .
1023                         $this->parent->getHelpBox( 'config-email-auth-help' ) .
1024                         "</div>" .
1025                         $this->getFieldSetEnd()
1026                 );
1027
1028                 $extensions = $this->parent->findExtensions();
1029
1030                 if ( $extensions ) {
1031                         $extHtml = $this->getFieldSetStart( 'config-extensions' );
1032
1033                         foreach ( $extensions as $ext ) {
1034                                 $extHtml .= $this->parent->getCheckBox( array(
1035                                         'var' => "ext-$ext",
1036                                         'rawtext' => $ext,
1037                                 ) );
1038                         }
1039
1040                         $extHtml .= $this->parent->getHelpBox( 'config-extensions-help' ) .
1041                                 $this->getFieldSetEnd();
1042                         $this->addHTML( $extHtml );
1043                 }
1044
1045                 // Having / in paths in Windows looks funny :)
1046                 $this->setVar( 'wgDeletedDirectory',
1047                         str_replace(
1048                                 '/', DIRECTORY_SEPARATOR,
1049                                 $this->getVar( 'wgDeletedDirectory' )
1050                         )
1051                 );
1052
1053                 $uploadwrapperStyle = $this->getVar( 'wgEnableUploads' ) ? '' : 'display: none';
1054                 $this->addHTML(
1055                         # Uploading
1056                         $this->getFieldSetStart( 'config-upload-settings' ) .
1057                         $this->parent->getCheckBox( array(
1058                                 'var' => 'wgEnableUploads',
1059                                 'label' => 'config-upload-enable',
1060                                 'attribs' => array( 'class' => 'showHideRadio', 'rel' => 'uploadwrapper' ),
1061                                 'help' => $this->parent->getHelpBox( 'config-upload-help' )
1062                         ) ) .
1063                         '<div id="uploadwrapper" style="' . $uploadwrapperStyle . '">' .
1064                         $this->parent->getTextBox( array(
1065                                 'var' => 'wgDeletedDirectory',
1066                                 'label' => 'config-upload-deleted',
1067                                 'attribs' => array( 'dir' => 'ltr' ),
1068                                 'help' => $this->parent->getHelpBox( 'config-upload-deleted-help' )
1069                         ) ) .
1070                         '</div>' .
1071                         $this->parent->getTextBox( array(
1072                                 'var' => 'wgLogo',
1073                                 'label' => 'config-logo',
1074                                 'attribs' => array( 'dir' => 'ltr' ),
1075                                 'help' => $this->parent->getHelpBox( 'config-logo-help' )
1076                         ) )
1077                 );
1078                 $this->addHTML(
1079                         $this->parent->getCheckBox( array(
1080                                 'var' => 'wgUseInstantCommons',
1081                                 'label' => 'config-instantcommons',
1082                                 'help' => $this->parent->getHelpBox( 'config-instantcommons-help' )
1083                         ) ) .
1084                         $this->getFieldSetEnd()
1085                 );
1086
1087                 $caches = array( 'none' );
1088                 if ( count( $this->getVar( '_Caches' ) ) ) {
1089                         $caches[] = 'accel';
1090                 }
1091                 $caches[] = 'memcached';
1092
1093                 // We'll hide/show this on demand when the value changes, see config.js.
1094                 $cacheval = $this->getVar( 'wgMainCacheType' );
1095                 if ( !$cacheval ) {
1096                         // We need to set a default here; but don't hardcode it
1097                         // or we lose it every time we reload the page for validation
1098                         // or going back!
1099                         $cacheval = 'none';
1100                 }
1101                 $hidden = ( $cacheval == 'memcached' ) ? '' : 'display: none';
1102                 $this->addHTML(
1103                         # Advanced settings
1104                         $this->getFieldSetStart( 'config-advanced-settings' ) .
1105                         # Object cache settings
1106                         // getRadioSet() builds a set of labeled radio buttons.
1107                         // For grep: The following messages are used as the item labels:
1108                         // config-cache-none, config-cache-accel, config-cache-memcached
1109                         $this->parent->getRadioSet( array(
1110                                 'var' => 'wgMainCacheType',
1111                                 'label' => 'config-cache-options',
1112                                 'itemLabelPrefix' => 'config-cache-',
1113                                 'values' => $caches,
1114                                 'value' => $cacheval,
1115                         ) ) .
1116                         $this->parent->getHelpBox( 'config-cache-help' ) .
1117                         "<div id=\"config-memcachewrapper\" style=\"$hidden\">" .
1118                         $this->parent->getTextArea( array(
1119                                 'var' => '_MemCachedServers',
1120                                 'label' => 'config-memcached-servers',
1121                                 'help' => $this->parent->getHelpBox( 'config-memcached-help' )
1122                         ) ) .
1123                         '</div>' .
1124                         $this->getFieldSetEnd()
1125                 );
1126                 $this->endForm();
1127
1128                 return null;
1129         }
1130
1131         /**
1132          * @return string
1133          */
1134         public function getCCPartnerUrl() {
1135                 $server = $this->getVar( 'wgServer' );
1136                 $exitUrl = $server . $this->parent->getUrl( array(
1137                         'page' => 'Options',
1138                         'SubmitCC' => 'indeed',
1139                         'config__LicenseCode' => 'cc',
1140                         'config_wgRightsUrl' => '[license_url]',
1141                         'config_wgRightsText' => '[license_name]',
1142                         'config_wgRightsIcon' => '[license_button]',
1143                 ) );
1144                 $styleUrl = $server . dirname( dirname( $this->parent->getUrl() ) ) .
1145                         '/skins/common/config-cc.css';
1146                 $iframeUrl = 'http://creativecommons.org/license/?' .
1147                         wfArrayToCgi( array(
1148                                 'partner' => 'MediaWiki',
1149                                 'exit_url' => $exitUrl,
1150                                 'lang' => $this->getVar( '_UserLang' ),
1151                                 'stylesheet' => $styleUrl,
1152                         ) );
1153
1154                 return $iframeUrl;
1155         }
1156
1157         /**
1158          * @return string
1159          */
1160         public function getCCChooser() {
1161                 $iframeAttribs = array(
1162                         'class' => 'config-cc-iframe',
1163                         'name' => 'config-cc-iframe',
1164                         'id' => 'config-cc-iframe',
1165                         'frameborder' => 0,
1166                         'width' => '100%',
1167                         'height' => '100%',
1168                 );
1169                 if ( $this->getVar( '_CCDone' ) ) {
1170                         $iframeAttribs['src'] = $this->parent->getUrl( array( 'ShowCC' => 'yes' ) );
1171                 } else {
1172                         $iframeAttribs['src'] = $this->getCCPartnerUrl();
1173                 }
1174                 $wrapperStyle = ( $this->getVar( '_LicenseCode' ) == 'cc-choose' ) ? '' : 'display: none';
1175
1176                 return "<div class=\"config-cc-wrapper\" id=\"config-cc-wrapper\" style=\"$wrapperStyle\">\n" .
1177                         Html::element( 'iframe', $iframeAttribs, '', false /* not short */ ) .
1178                         "</div>\n";
1179         }
1180
1181         /**
1182          * @return string
1183          */
1184         public function getCCDoneBox() {
1185                 $js = "parent.document.getElementById('config-cc-wrapper').style.height = '$1';";
1186                 // If you change this height, also change it in config.css
1187                 $expandJs = str_replace( '$1', '54em', $js );
1188                 $reduceJs = str_replace( '$1', '70px', $js );
1189
1190                 return '<p>' .
1191                         Html::element( 'img', array( 'src' => $this->getVar( 'wgRightsIcon' ) ) ) .
1192                         '&#160;&#160;' .
1193                         htmlspecialchars( $this->getVar( 'wgRightsText' ) ) .
1194                         "</p>\n" .
1195                         "<p style=\"text-align: center;\">" .
1196                         Html::element( 'a',
1197                                 array(
1198                                         'href' => $this->getCCPartnerUrl(),
1199                                         'onclick' => $expandJs,
1200                                 ),
1201                                 wfMessage( 'config-cc-again' )->text()
1202                         ) .
1203                         "</p>\n" .
1204                         "<script>\n" .
1205                         # Reduce the wrapper div height
1206                         htmlspecialchars( $reduceJs ) .
1207                         "\n" .
1208                         "</script>\n";
1209         }
1210
1211         public function submitCC() {
1212                 $newValues = $this->parent->setVarsFromRequest(
1213                         array( 'wgRightsUrl', 'wgRightsText', 'wgRightsIcon' ) );
1214                 if ( count( $newValues ) != 3 ) {
1215                         $this->parent->showError( 'config-cc-error' );
1216
1217                         return;
1218                 }
1219                 $this->setVar( '_CCDone', true );
1220                 $this->addHTML( $this->getCCDoneBox() );
1221         }
1222
1223         /**
1224          * @return bool
1225          */
1226         public function submit() {
1227                 $this->parent->setVarsFromRequest( array( '_RightsProfile', '_LicenseCode',
1228                         'wgEnableEmail', 'wgPasswordSender', 'wgEnableUploads', 'wgLogo',
1229                         'wgEnableUserEmail', 'wgEnotifUserTalk', 'wgEnotifWatchlist',
1230                         'wgEmailAuthentication', 'wgMainCacheType', '_MemCachedServers',
1231                         'wgUseInstantCommons' ) );
1232
1233                 if ( !array_key_exists( $this->getVar( '_RightsProfile' ), $this->parent->rightsProfiles )
1234                 ) {
1235                         reset( $this->parent->rightsProfiles );
1236                         $this->setVar( '_RightsProfile', key( $this->parent->rightsProfiles ) );
1237                 }
1238
1239                 $code = $this->getVar( '_LicenseCode' );
1240                 if ( $code == 'cc-choose' ) {
1241                         if ( !$this->getVar( '_CCDone' ) ) {
1242                                 $this->parent->showError( 'config-cc-not-chosen' );
1243
1244                                 return false;
1245                         }
1246                 } elseif ( array_key_exists( $code, $this->parent->licenses ) ) {
1247                         // Messages:
1248                         // config-license-cc-by, config-license-cc-by-sa, config-license-cc-by-nc-sa,
1249                         // config-license-cc-0, config-license-pd, config-license-gfdl, config-license-none,
1250                         // config-license-cc-choose
1251                         $entry = $this->parent->licenses[$code];
1252                         if ( isset( $entry['text'] ) ) {
1253                                 $this->setVar( 'wgRightsText', $entry['text'] );
1254                         } else {
1255                                 $this->setVar( 'wgRightsText', wfMessage( 'config-license-' . $code )->text() );
1256                         }
1257                         $this->setVar( 'wgRightsUrl', $entry['url'] );
1258                         $this->setVar( 'wgRightsIcon', $entry['icon'] );
1259                 } else {
1260                         $this->setVar( 'wgRightsText', '' );
1261                         $this->setVar( 'wgRightsUrl', '' );
1262                         $this->setVar( 'wgRightsIcon', '' );
1263                 }
1264
1265                 $extsAvailable = $this->parent->findExtensions();
1266                 $extsToInstall = array();
1267                 foreach ( $extsAvailable as $ext ) {
1268                         if ( $this->parent->request->getCheck( 'config_ext-' . $ext ) ) {
1269                                 $extsToInstall[] = $ext;
1270                         }
1271                 }
1272                 $this->parent->setVar( '_Extensions', $extsToInstall );
1273
1274                 if ( $this->getVar( 'wgMainCacheType' ) == 'memcached' ) {
1275                         $memcServers = explode( "\n", $this->getVar( '_MemCachedServers' ) );
1276                         if ( !$memcServers ) {
1277                                 $this->parent->showError( 'config-memcache-needservers' );
1278
1279                                 return false;
1280                         }
1281
1282                         foreach ( $memcServers as $server ) {
1283                                 $memcParts = explode( ":", $server, 2 );
1284                                 if ( !isset( $memcParts[0] )
1285                                         || ( !IP::isValid( $memcParts[0] )
1286                                                 && ( gethostbyname( $memcParts[0] ) == $memcParts[0] ) )
1287                                 ) {
1288                                         $this->parent->showError( 'config-memcache-badip', $memcParts[0] );
1289
1290                                         return false;
1291                                 } elseif ( !isset( $memcParts[1] ) ) {
1292                                         $this->parent->showError( 'config-memcache-noport', $memcParts[0] );
1293
1294                                         return false;
1295                                 } elseif ( $memcParts[1] < 1 || $memcParts[1] > 65535 ) {
1296                                         $this->parent->showError( 'config-memcache-badport', 1, 65535 );
1297
1298                                         return false;
1299                                 }
1300                         }
1301                 }
1302
1303                 return true;
1304         }
1305
1306 }
1307
1308 class WebInstallerInstall extends WebInstallerPage {
1309
1310         /**
1311          * @return bool Always true.
1312          */
1313         public function isSlow() {
1314                 return true;
1315         }
1316
1317         /**
1318          * @return string|bool
1319          */
1320         public function execute() {
1321                 if ( $this->getVar( '_UpgradeDone' ) ) {
1322                         return 'skip';
1323                 } elseif ( $this->getVar( '_InstallDone' ) ) {
1324                         return 'continue';
1325                 } elseif ( $this->parent->request->wasPosted() ) {
1326                         $this->startForm();
1327                         $this->addHTML( "<ul>" );
1328                         $results = $this->parent->performInstallation(
1329                                 array( $this, 'startStage' ),
1330                                 array( $this, 'endStage' )
1331                         );
1332                         $this->addHTML( "</ul>" );
1333                         // PerformInstallation bails on a fatal, so make sure the last item
1334                         // completed before giving 'next.' Likewise, only provide back on failure
1335                         $lastStep = end( $results );
1336                         $continue = $lastStep->isOK() ? 'continue' : false;
1337                         $back = $lastStep->isOK() ? false : 'back';
1338                         $this->endForm( $continue, $back );
1339                 } else {
1340                         $this->startForm();
1341                         $this->addHTML( $this->parent->getInfoBox( wfMessage( 'config-install-begin' )->plain() ) );
1342                         $this->endForm();
1343                 }
1344
1345                 return true;
1346         }
1347
1348         /**
1349          * @param string $step
1350          */
1351         public function startStage( $step ) {
1352                 // Messages: config-install-database, config-install-tables, config-install-interwiki,
1353                 // config-install-stats, config-install-keys, config-install-sysop, config-install-mainpage
1354                 $this->addHTML( "<li>" . wfMessage( "config-install-$step" )->escaped() .
1355                         wfMessage( 'ellipsis' )->escaped() );
1356
1357                 if ( $step == 'extension-tables' ) {
1358                         $this->startLiveBox();
1359                 }
1360         }
1361
1362         /**
1363          * @param string $step
1364          * @param Status $status
1365          */
1366         public function endStage( $step, $status ) {
1367                 if ( $step == 'extension-tables' ) {
1368                         $this->endLiveBox();
1369                 }
1370                 $msg = $status->isOk() ? 'config-install-step-done' : 'config-install-step-failed';
1371                 $html = wfMessage( 'word-separator' )->escaped() . wfMessage( $msg )->escaped();
1372                 if ( !$status->isOk() ) {
1373                         $html = "<span class=\"error\">$html</span>";
1374                 }
1375                 $this->addHTML( $html . "</li>\n" );
1376                 if ( !$status->isGood() ) {
1377                         $this->parent->showStatusBox( $status );
1378                 }
1379         }
1380
1381 }
1382
1383 class WebInstallerComplete extends WebInstallerPage {
1384
1385         public function execute() {
1386                 // Pop up a dialog box, to make it difficult for the user to forget
1387                 // to download the file
1388                 $lsUrl = $this->getVar( 'wgServer' ) . $this->parent->getURL( array( 'localsettings' => 1 ) );
1389                 if ( isset( $_SERVER['HTTP_USER_AGENT'] ) &&
1390                         strpos( $_SERVER['HTTP_USER_AGENT'], 'MSIE' ) !== false
1391                 ) {
1392                         // JS appears to be the only method that works consistently with IE7+
1393                         $this->addHtml( "\n<script>jQuery( function () { document.location = " .
1394                                 Xml::encodeJsVar( $lsUrl ) . "; } );</script>\n" );
1395                 } else {
1396                         $this->parent->request->response()->header( "Refresh: 0;url=$lsUrl" );
1397                 }
1398
1399                 $this->startForm();
1400                 $this->parent->disableLinkPopups();
1401                 $this->addHTML(
1402                         $this->parent->getInfoBox(
1403                                 wfMessage( 'config-install-done',
1404                                         $lsUrl,
1405                                         $this->getVar( 'wgServer' ) .
1406                                         $this->getVar( 'wgScriptPath' ) . '/index' .
1407                                         $this->getVar( 'wgScriptExtension' ),
1408                                         '<downloadlink/>'
1409                                 )->plain(), 'tick-32.png'
1410                         )
1411                 );
1412                 $this->addHTML( $this->parent->getInfoBox(
1413                         wfMessage( 'config-extension-link' )->text() ) );
1414
1415                 $this->parent->restoreLinkPopups();
1416                 $this->endForm( false, false );
1417         }
1418
1419 }
1420
1421 class WebInstallerRestart extends WebInstallerPage {
1422
1423         /**
1424          * @return string|null
1425          */
1426         public function execute() {
1427                 $r = $this->parent->request;
1428                 if ( $r->wasPosted() ) {
1429                         $really = $r->getVal( 'submit-restart' );
1430                         if ( $really ) {
1431                                 $this->parent->reset();
1432                         }
1433
1434                         return 'continue';
1435                 }
1436
1437                 $this->startForm();
1438                 $s = $this->parent->getWarningBox( wfMessage( 'config-help-restart' )->plain() );
1439                 $this->addHTML( $s );
1440                 $this->endForm( 'restart' );
1441
1442                 return null;
1443         }
1444
1445 }
1446
1447 abstract class WebInstallerDocument extends WebInstallerPage {
1448
1449         /**
1450          * @return string
1451          */
1452         abstract protected function getFileName();
1453
1454         public function execute() {
1455                 $text = $this->getFileContents();
1456                 $text = InstallDocFormatter::format( $text );
1457                 $this->parent->output->addWikiText( $text );
1458                 $this->startForm();
1459                 $this->endForm( false );
1460         }
1461
1462         /**
1463          * @return string
1464          */
1465         public function getFileContents() {
1466                 $file = __DIR__ . '/../../' . $this->getFileName();
1467                 if ( !file_exists( $file ) ) {
1468                         return wfMessage( 'config-nofile', $file )->plain();
1469                 }
1470
1471                 return file_get_contents( $file );
1472         }
1473
1474 }
1475
1476 class WebInstallerReadme extends WebInstallerDocument {
1477
1478         /**
1479          * @return string
1480          */
1481         protected function getFileName() {
1482                 return 'README';
1483         }
1484
1485 }
1486
1487 class WebInstallerReleaseNotes extends WebInstallerDocument {
1488
1489         /**
1490          * @throws MWException
1491          * @return string
1492          */
1493         protected function getFileName() {
1494                 global $wgVersion;
1495
1496                 if ( !preg_match( '/^(\d+)\.(\d+).*/i', $wgVersion, $result ) ) {
1497                         throw new MWException( 'Variable $wgVersion has an invalid value.' );
1498                 }
1499
1500                 return 'RELEASE-NOTES-' . $result[1] . '.' . $result[2];
1501         }
1502
1503 }
1504
1505 class WebInstallerUpgradeDoc extends WebInstallerDocument {
1506
1507         /**
1508          * @return string
1509          */
1510         protected function getFileName() {
1511                 return 'UPGRADE';
1512         }
1513
1514 }
1515
1516 class WebInstallerCopying extends WebInstallerDocument {
1517
1518         /**
1519          * @return string
1520          */
1521         protected function getFileName() {
1522                 return 'COPYING';
1523         }
1524
1525 }