includes/installer/WebInstaller.php

   1 <?php
   2 /**
   3  * Core installer web interface.
   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 use MediaWiki\MediaWikiServices;
  25
  26 /**
  27  * Class for the core installer web interface.
  28  *
  29  * @ingroup Deployment
  30  * @since 1.17
  31  */
  32 class WebInstaller extends Installer {
  33
  34         /**
  35          * @var WebInstallerOutput
  36          */
  37         public $output;
  38
  39         /**
  40          * WebRequest object.
  41          *
  42          * @var WebRequest
  43          */
  44         public $request;
  45
  46         /**
  47          * Cached session array.
  48          *
  49          * @var array[]
  50          */
  51         protected $session;
  52
  53         /**
  54          * Captured PHP error text. Temporary.
  55          *
  56          * @var string[]
  57          */
  58         protected $phpErrors;
  59
  60         /**
  61          * The main sequence of page names. These will be displayed in turn.
  62          *
  63          * To add a new installer page:
  64          *    * Add it to this WebInstaller::$pageSequence property
  65          *    * Add a "config-page-<name>" message
  66          *    * Add a "WebInstaller<name>" class
  67          *
  68          * @var string[]
  69          */
  70         public $pageSequence = [
  71                 'Language',
  72                 'ExistingWiki',
  73                 'Welcome',
  74                 'DBConnect',
  75                 'Upgrade',
  76                 'DBSettings',
  77                 'Name',
  78                 'Options',
  79                 'Install',
  80                 'Complete',
  81         ];
  82
  83         /**
  84          * Out of sequence pages, selectable by the user at any time.
  85          *
  86          * @var string[]
  87          */
  88         protected $otherPages = [
  89                 'Restart',
  90                 'Readme',
  91                 'ReleaseNotes',
  92                 'Copying',
  93                 'UpgradeDoc', // Can't use Upgrade due to Upgrade step
  94         ];
  95
  96         /**
  97          * Array of pages which have declared that they have been submitted, have validated
  98          * their input, and need no further processing.
  99          *
 100          * @var bool[]
 101          */
 102         protected $happyPages;
 103
 104         /**
 105          * List of "skipped" pages. These are pages that will automatically continue
 106          * to the next page on any GET request. To avoid breaking the "back" button,
 107          * they need to be skipped during a back operation.
 108          *
 109          * @var bool[]
 110          */
 111         protected $skippedPages;
 112
 113         /**
 114          * Flag indicating that session data may have been lost.
 115          *
 116          * @var bool
 117          */
 118         public $showSessionWarning = false;
 119
 120         /**
 121          * Numeric index of the page we're on
 122          *
 123          * @var int
 124          */
 125         protected $tabIndex = 1;
 126
 127         /**
 128          * Numeric index of the help box
 129          *
 130          * @var int
 131          */
 132         protected $helpBoxId = 1;
 133
 134         /**
 135          * Name of the page we're on
 136          *
 137          * @var string
 138          */
 139         protected $currentPageName;
 140
 141         /**
 142          * @param WebRequest $request
 143          */
 144         public function __construct( WebRequest $request ) {
 145                 parent::__construct();
 146                 $this->output = new WebInstallerOutput( $this );
 147                 $this->request = $request;
 148         }
 149
 150         /**
 151          * Main entry point.
 152          *
 153          * @param array[] $session Initial session array
 154          *
 155          * @return array[] New session array
 156          */
 157         public function execute( array $session ) {
 158                 $this->session = $session;
 159
 160                 if ( isset( $session['settings'] ) ) {
 161                         $this->settings = $session['settings'] + $this->settings;
 162                         // T187586 MediaWikiServices works with globals
 163                         foreach ( $this->settings as $key => $val ) {
 164                                 $GLOBALS[$key] = $val;
 165                         }
 166                 }
 167
 168                 $this->setupLanguage();
 169
 170                 if ( ( $this->getVar( '_InstallDone' ) || $this->getVar( '_UpgradeDone' ) )
 171                         && $this->request->getVal( 'localsettings' )
 172                 ) {
 173                         $this->outputLS();
 174                         return $this->session;
 175                 }
 176
 177                 $isCSS = $this->request->getVal( 'css' );
 178                 if ( $isCSS ) {
 179                         $this->outputCss();
 180                         return $this->session;
 181                 }
 182
 183                 $this->happyPages = $session['happyPages'] ?? [];
 184
 185                 $this->skippedPages = $session['skippedPages'] ?? [];
 186
 187                 $lowestUnhappy = $this->getLowestUnhappy();
 188
 189                 # Special case for Creative Commons partner chooser box.
 190                 if ( $this->request->getVal( 'SubmitCC' ) ) {
 191                         /** @var WebInstallerOptions $page */
 192                         $page = $this->getPageByName( 'Options' );
 193                         '@phan-var WebInstallerOptions $page';
 194                         $this->output->useShortHeader();
 195                         $this->output->allowFrames();
 196                         $page->submitCC();
 197
 198                         return $this->finish();
 199                 }
 200
 201                 if ( $this->request->getVal( 'ShowCC' ) ) {
 202                         /** @var WebInstallerOptions $page */
 203                         $page = $this->getPageByName( 'Options' );
 204                         '@phan-var WebInstallerOptions $page';
 205                         $this->output->useShortHeader();
 206                         $this->output->allowFrames();
 207                         $this->output->addHTML( $page->getCCDoneBox() );
 208
 209                         return $this->finish();
 210                 }
 211
 212                 # Get the page name.
 213                 $pageName = $this->request->getVal( 'page' );
 214
 215                 if ( in_array( $pageName, $this->otherPages ) ) {
 216                         # Out of sequence
 217                         $pageId = false;
 218                         $page = $this->getPageByName( $pageName );
 219                 } else {
 220                         # Main sequence
 221                         if ( !$pageName || !in_array( $pageName, $this->pageSequence ) ) {
 222                                 $pageId = $lowestUnhappy;
 223                         } else {
 224                                 $pageId = array_search( $pageName, $this->pageSequence );
 225                         }
 226
 227                         # If necessary, move back to the lowest-numbered unhappy page
 228                         if ( $pageId > $lowestUnhappy ) {
 229                                 $pageId = $lowestUnhappy;
 230                                 if ( $lowestUnhappy == 0 ) {
 231                                         # Knocked back to start, possible loss of session data.
 232                                         $this->showSessionWarning = true;
 233                                 }
 234                         }
 235
 236                         $pageName = $this->pageSequence[$pageId];
 237                         $page = $this->getPageByName( $pageName );
 238                 }
 239
 240                 # If a back button was submitted, go back without submitting the form data.
 241                 if ( $this->request->wasPosted() && $this->request->getBool( 'submit-back' ) ) {
 242                         if ( $this->request->getVal( 'lastPage' ) ) {
 243                                 $nextPage = $this->request->getVal( 'lastPage' );
 244                         } elseif ( $pageId !== false ) {
 245                                 # Main sequence page
 246                                 # Skip the skipped pages
 247                                 $nextPageId = $pageId;
 248
 249                                 do {
 250                                         $nextPageId--;
 251                                         $nextPage = $this->pageSequence[$nextPageId];
 252                                 } while ( isset( $this->skippedPages[$nextPage] ) );
 253                         } else {
 254                                 $nextPage = $this->pageSequence[$lowestUnhappy];
 255                         }
 256
 257                         $this->output->redirect( $this->getUrl( [ 'page' => $nextPage ] ) );
 258
 259                         return $this->finish();
 260                 }
 261
 262                 # Execute the page.
 263                 $this->currentPageName = $page->getName();
 264                 $this->startPageWrapper( $pageName );
 265
 266                 if ( $page->isSlow() ) {
 267                         $this->disableTimeLimit();
 268                 }
 269
 270                 $result = $page->execute();
 271
 272                 $this->endPageWrapper();
 273
 274                 if ( $result == 'skip' ) {
 275                         # Page skipped without explicit submission.
 276                         # Skip it when we click "back" so that we don't just go forward again.
 277                         $this->skippedPages[$pageName] = true;
 278                         $result = 'continue';
 279                 } else {
 280                         unset( $this->skippedPages[$pageName] );
 281                 }
 282
 283                 # If it was posted, the page can request a continue to the next page.
 284                 if ( $result === 'continue' && !$this->output->headerDone() ) {
 285                         if ( $pageId !== false ) {
 286                                 $this->happyPages[$pageId] = true;
 287                         }
 288
 289                         $lowestUnhappy = $this->getLowestUnhappy();
 290
 291                         if ( $this->request->getVal( 'lastPage' ) ) {
 292                                 $nextPage = $this->request->getVal( 'lastPage' );
 293                         } elseif ( $pageId !== false ) {
 294                                 $nextPage = $this->pageSequence[$pageId + 1];
 295                         } else {
 296                                 $nextPage = $this->pageSequence[$lowestUnhappy];
 297                         }
 298
 299                         if ( array_search( $nextPage, $this->pageSequence ) > $lowestUnhappy ) {
 300                                 $nextPage = $this->pageSequence[$lowestUnhappy];
 301                         }
 302
 303                         $this->output->redirect( $this->getUrl( [ 'page' => $nextPage ] ) );
 304                 }
 305
 306                 return $this->finish();
 307         }
 308
 309         /**
 310          * Find the next page in sequence that hasn't been completed
 311          * @return int
 312          */
 313         public function getLowestUnhappy() {
 314                 if ( count( $this->happyPages ) == 0 ) {
 315                         return 0;
 316                 } else {
 317                         return max( array_keys( $this->happyPages ) ) + 1;
 318                 }
 319         }
 320
 321         /**
 322          * Start the PHP session. This may be called before execute() to start the PHP session.
 323          *
 324          * @throws Exception
 325          * @return bool
 326          */
 327         public function startSession() {
 328                 if ( wfIniGetBool( 'session.auto_start' ) || session_id() ) {
 329                         // Done already
 330                         return true;
 331                 }
 332
 333                 $this->phpErrors = [];
 334                 set_error_handler( [ $this, 'errorHandler' ] );
 335                 try {
 336                         session_name( 'mw_installer_session' );
 337                         session_start();
 338                 } catch ( Exception $e ) {
 339                         restore_error_handler();
 340                         throw $e;
 341                 }
 342                 restore_error_handler();
 343
 344                 if ( $this->phpErrors ) {
 345                         return false;
 346                 }
 347
 348                 return true;
 349         }
 350
 351         /**
 352          * Get a hash of data identifying this MW installation.
 353          *
 354          * This is used by mw-config/index.php to prevent multiple installations of MW
 355          * on the same cookie domain from interfering with each other.
 356          *
 357          * @return string
 358          */
 359         public function getFingerprint() {
 360                 // Get the base URL of the installation
 361                 $url = $this->request->getFullRequestURL();
 362                 if ( preg_match( '!^(.*\?)!', $url, $m ) ) {
 363                         // Trim query string
 364                         $url = $m[1];
 365                 }
 366                 if ( preg_match( '!^(.*)/[^/]*/[^/]*$!', $url, $m ) ) {
 367                         // This... seems to try to get the base path from
 368                         // the /mw-config/index.php. Kinda scary though?
 369                         $url = $m[1];
 370                 }
 371
 372                 return md5( serialize( [
 373                         'local path' => dirname( __DIR__ ),
 374                         'url' => $url,
 375                         'version' => $GLOBALS['wgVersion']
 376                 ] ) );
 377         }
 378
 379         /**
 380          * Show an error message in a box. Parameters are like wfMessage(), or
 381          * alternatively, pass a Message object in.
 382          * @param string|Message $msg
 383          * @param mixed ...$params
 384          */
 385         public function showError( $msg, ...$params ) {
 386                 if ( !( $msg instanceof Message ) ) {
 387                         $msg = wfMessage(
 388                                 $msg,
 389                                 array_map( 'htmlspecialchars', $params )
 390                         );
 391                 }
 392                 $text = $msg->useDatabase( false )->plain();
 393                 $box = Html::errorBox( $text, '', 'config-error-box' );
 394                 $this->output->addHTML( $box );
 395         }
 396
 397         /**
 398          * Temporary error handler for session start debugging.
 399          *
 400          * @param int $errno Unused
 401          * @param string $errstr
 402          */
 403         public function errorHandler( $errno, $errstr ) {
 404                 $this->phpErrors[] = $errstr;
 405         }
 406
 407         /**
 408          * Clean up from execute()
 409          *
 410          * @return array[]
 411          */
 412         public function finish() {
 413                 $this->output->output();
 414
 415                 $this->session['happyPages'] = $this->happyPages;
 416                 $this->session['skippedPages'] = $this->skippedPages;
 417                 $this->session['settings'] = $this->settings;
 418
 419                 return $this->session;
 420         }
 421
 422         /**
 423          * We're restarting the installation, reset the session, happyPages, etc
 424          */
 425         public function reset() {
 426                 $this->session = [];
 427                 $this->happyPages = [];
 428                 $this->settings = [];
 429         }
 430
 431         /**
 432          * Get a URL for submission back to the same script.
 433          *
 434          * @param string[] $query
 435          *
 436          * @return string
 437          */
 438         public function getUrl( $query = [] ) {
 439                 $url = $this->request->getRequestURL();
 440                 # Remove existing query
 441                 $url = preg_replace( '/\?.*$/', '', $url );
 442
 443                 if ( $query ) {
 444                         $url .= '?' . wfArrayToCgi( $query );
 445                 }
 446
 447                 return $url;
 448         }
 449
 450         /**
 451          * Get a WebInstallerPage by name.
 452          *
 453          * @param string $pageName
 454          * @return WebInstallerPage
 455          */
 456         public function getPageByName( $pageName ) {
 457                 $pageClass = 'WebInstaller' . $pageName;
 458
 459                 return new $pageClass( $this );
 460         }
 461
 462         /**
 463          * Get a session variable.
 464          *
 465          * @param string $name
 466          * @param array|null $default
 467          *
 468          * @return array
 469          */
 470         public function getSession( $name, $default = null ) {
 471                 return $this->session[$name] ?? $default;
 472         }
 473
 474         /**
 475          * Set a session variable.
 476          *
 477          * @param string $name Key for the variable
 478          * @param mixed $value
 479          */
 480         public function setSession( $name, $value ) {
 481                 $this->session[$name] = $value;
 482         }
 483
 484         /**
 485          * Get the next tabindex attribute value.
 486          *
 487          * @return int
 488          */
 489         public function nextTabIndex() {
 490                 return $this->tabIndex++;
 491         }
 492
 493         /**
 494          * Initializes language-related variables.
 495          */
 496         public function setupLanguage() {
 497                 global $wgLang, $wgContLang, $wgLanguageCode;
 498
 499                 if ( $this->getSession( 'test' ) === null && !$this->request->wasPosted() ) {
 500                         $wgLanguageCode = $this->getAcceptLanguage();
 501                         $wgLang = Language::factory( $wgLanguageCode );
 502                         RequestContext::getMain()->setLanguage( $wgLang );
 503                         $this->setVar( 'wgLanguageCode', $wgLanguageCode );
 504                         $this->setVar( '_UserLang', $wgLanguageCode );
 505                 } else {
 506                         $wgLanguageCode = $this->getVar( 'wgLanguageCode' );
 507                 }
 508                 $wgContLang = MediaWikiServices::getInstance()->getContentLanguage();
 509         }
 510
 511         /**
 512          * Retrieves MediaWiki language from Accept-Language HTTP header.
 513          *
 514          * @return string
 515          */
 516         public function getAcceptLanguage() {
 517                 global $wgLanguageCode, $wgRequest;
 518
 519                 $mwLanguages = Language::fetchLanguageNames( null, 'mwfile' );
 520                 $headerLanguages = array_keys( $wgRequest->getAcceptLang() );
 521
 522                 foreach ( $headerLanguages as $lang ) {
 523                         if ( isset( $mwLanguages[$lang] ) ) {
 524                                 return $lang;
 525                         }
 526                 }
 527
 528                 return $wgLanguageCode;
 529         }
 530
 531         /**
 532          * Called by execute() before page output starts, to show a page list.
 533          *
 534          * @param string $currentPageName
 535          */
 536         private function startPageWrapper( $currentPageName ) {
 537                 $s = "<div class=\"config-page-wrapper\">\n";
 538                 $s .= "<div class=\"config-page\">\n";
 539                 $s .= "<div class=\"config-page-list\"><ul>\n";
 540                 $lastHappy = -1;
 541
 542                 foreach ( $this->pageSequence as $id => $pageName ) {
 543                         $happy = !empty( $this->happyPages[$id] );
 544                         $s .= $this->getPageListItem(
 545                                 $pageName,
 546                                 $happy || $lastHappy == $id - 1,
 547                                 $currentPageName
 548                         );
 549
 550                         if ( $happy ) {
 551                                 $lastHappy = $id;
 552                         }
 553                 }
 554
 555                 $s .= "</ul><br/><ul>\n";
 556                 $s .= $this->getPageListItem( 'Restart', true, $currentPageName );
 557                 // End list pane
 558                 $s .= "</ul></div>\n";
 559
 560                 // Messages:
 561                 // config-page-language, config-page-welcome, config-page-dbconnect, config-page-upgrade,
 562                 // config-page-dbsettings, config-page-name, config-page-options, config-page-install,
 563                 // config-page-complete, config-page-restart, config-page-readme, config-page-releasenotes,
 564                 // config-page-copying, config-page-upgradedoc, config-page-existingwiki
 565                 $s .= Html::element( 'h2', [],
 566                         wfMessage( 'config-page-' . strtolower( $currentPageName ) )->text() );
 567
 568                 $this->output->addHTMLNoFlush( $s );
 569         }
 570
 571         /**
 572          * Get a list item for the page list.
 573          *
 574          * @param string $pageName
 575          * @param bool $enabled
 576          * @param string $currentPageName
 577          *
 578          * @return string
 579          */
 580         private function getPageListItem( $pageName, $enabled, $currentPageName ) {
 581                 $s = "<li class=\"config-page-list-item\">";
 582
 583                 // Messages:
 584                 // config-page-language, config-page-welcome, config-page-dbconnect, config-page-upgrade,
 585                 // config-page-dbsettings, config-page-name, config-page-options, config-page-install,
 586                 // config-page-complete, config-page-restart, config-page-readme, config-page-releasenotes,
 587                 // config-page-copying, config-page-upgradedoc, config-page-existingwiki
 588                 $name = wfMessage( 'config-page-' . strtolower( $pageName ) )->text();
 589
 590                 if ( $enabled ) {
 591                         $query = [ 'page' => $pageName ];
 592
 593                         if ( !in_array( $pageName, $this->pageSequence ) ) {
 594                                 if ( in_array( $currentPageName, $this->pageSequence ) ) {
 595                                         $query['lastPage'] = $currentPageName;
 596                                 }
 597
 598                                 $link = Html::element( 'a',
 599                                         [
 600                                                 'href' => $this->getUrl( $query )
 601                                         ],
 602                                         $name
 603                                 );
 604                         } else {
 605                                 $link = htmlspecialchars( $name );
 606                         }
 607
 608                         if ( $pageName == $currentPageName ) {
 609                                 $s .= "<span class=\"config-page-current\">$link</span>";
 610                         } else {
 611                                 $s .= $link;
 612                         }
 613                 } else {
 614                         $s .= Html::element( 'span',
 615                                 [
 616                                         'class' => 'config-page-disabled'
 617                                 ],
 618                                 $name
 619                         );
 620                 }
 621
 622                 $s .= "</li>\n";
 623
 624                 return $s;
 625         }
 626
 627         /**
 628          * Output some stuff after a page is finished.
 629          */
 630         private function endPageWrapper() {
 631                 $this->output->addHTMLNoFlush(
 632                         "<div class=\"visualClear\"></div>\n" .
 633                         "</div>\n" .
 634                         "<div class=\"visualClear\"></div>\n" .
 635                         "</div>" );
 636         }
 637
 638         /**
 639          * Get HTML for an error box with an icon.
 640          *
 641          * @param string $text Wikitext, get this with wfMessage()->plain()
 642          *
 643          * @return string
 644          */
 645         public function getErrorBox( $text ) {
 646                 return $this->getInfoBox( $text, 'critical-32.png', 'config-error-box' );
 647         }
 648
 649         /**
 650          * Get HTML for a warning box with an icon.
 651          *
 652          * @param string $text Wikitext, get this with wfMessage()->plain()
 653          *
 654          * @return string
 655          */
 656         public function getWarningBox( $text ) {
 657                 return $this->getInfoBox( $text, 'warning-32.png', 'config-warning-box' );
 658         }
 659
 660         /**
 661          * Get HTML for an information message box with an icon.
 662          *
 663          * @param string|HtmlArmor $text Wikitext to be parsed (from Message::plain) or raw HTML.
 664          * @param string|bool $icon Icon name, file in mw-config/images. Default: false
 665          * @param string|bool $class Additional class name to add to the wrapper div. Default: false.
 666          * @return string HTML
 667          */
 668         public function getInfoBox( $text, $icon = false, $class = false ) {
 669                 $html = ( $text instanceof HtmlArmor ) ?
 670                         HtmlArmor::getHtml( $text ) :
 671                         $this->parse( $text, true );
 672                 $icon = ( $icon == false ) ?
 673                         'images/info-32.png' :
 674                         'images/' . $icon;
 675                 $alt = wfMessage( 'config-information' )->text();
 676
 677                 return Html::infoBox( $html, $icon, $alt, $class );
 678         }
 679
 680         /**
 681          * Get small text indented help for a preceding form field.
 682          * Parameters like wfMessage().
 683          *
 684          * @param string $msg
 685          * @return string
 686          */
 687         public function getHelpBox( $msg, ...$args ) {
 688                 $args = array_map( 'htmlspecialchars', $args );
 689                 $text = wfMessage( $msg, $args )->useDatabase( false )->plain();
 690                 $html = $this->parse( $text, true );
 691                 $id = 'helpBox-' . $this->helpBoxId++;
 692
 693                 return "<div class=\"config-help-field-container\">\n" .
 694                         "<input type=\"checkbox\" class=\"config-help-field-checkbox\" id=\"$id\" />" .
 695                         "<label class=\"config-help-field-hint\" for=\"$id\" title=\"" .
 696                         wfMessage( 'config-help-tooltip' )->escaped() . "\">" .
 697                         wfMessage( 'config-help' )->escaped() . "</label>\n" .
 698                         "<div class=\"config-help-field-data\">" . $html . "</div>\n" .
 699                         "</div>\n";
 700         }
 701
 702         /**
 703          * Output a help box.
 704          * @param string $msg Key for wfMessage()
 705          * @param mixed ...$params
 706          */
 707         public function showHelpBox( $msg, ...$params ) {
 708                 $html = $this->getHelpBox( $msg, ...$params );
 709                 $this->output->addHTML( $html );
 710         }
 711
 712         /**
 713          * Show a short informational message.
 714          * Output looks like a list.
 715          *
 716          * @param string $msg
 717          * @param mixed ...$params
 718          */
 719         public function showMessage( $msg, ...$params ) {
 720                 $html = '<div class="config-message">' .
 721                         $this->parse( wfMessage( $msg, $params )->useDatabase( false )->plain() ) .
 722                         "</div>\n";
 723                 $this->output->addHTML( $html );
 724         }
 725
 726         /**
 727          * @param Status $status
 728          */
 729         public function showStatusMessage( Status $status ) {
 730                 $errors = array_merge( $status->getErrorsArray(), $status->getWarningsArray() );
 731                 foreach ( $errors as $error ) {
 732                         $this->showMessage( ...$error );
 733                 }
 734         }
 735
 736         /**
 737          * Label a control by wrapping a config-input div around it and putting a
 738          * label before it.
 739          *
 740          * @param string $msg
 741          * @param string $forId
 742          * @param string $contents
 743          * @param string $helpData
 744          * @return string
 745          */
 746         public function label( $msg, $forId, $contents, $helpData = "" ) {
 747                 if ( strval( $msg ) == '' ) {
 748                         $labelText = "\u{00A0}";
 749                 } else {
 750                         $labelText = wfMessage( $msg )->escaped();
 751                 }
 752
 753                 $attributes = [ 'class' => 'config-label' ];
 754
 755                 if ( $forId ) {
 756                         $attributes['for'] = $forId;
 757                 }
 758
 759                 return "<div class=\"config-block\">\n" .
 760                         "  <div class=\"config-block-label\">\n" .
 761                         Xml::tags( 'label',
 762                                 $attributes,
 763                                 $labelText
 764                         ) . "\n" .
 765                         $helpData .
 766                         "  </div>\n" .
 767                         "  <div class=\"config-block-elements\">\n" .
 768                         $contents .
 769                         "  </div>\n" .
 770                         "</div>\n";
 771         }
 772
 773         /**
 774          * Get a labelled text box to configure a variable.
 775          *
 776          * @param mixed[] $params
 777          *    Parameters are:
 778          *      var:         The variable to be configured (required)
 779          *      label:       The message name for the label (required)
 780          *      attribs:     Additional attributes for the input element (optional)
 781          *      controlName: The name for the input element (optional)
 782          *      value:       The current value of the variable (optional)
 783          *      help:        The html for the help text (optional)
 784          *
 785          * @return string
 786          */
 787         public function getTextBox( $params ) {
 788                 if ( !isset( $params['controlName'] ) ) {
 789                         $params['controlName'] = 'config_' . $params['var'];
 790                 }
 791
 792                 if ( !isset( $params['value'] ) ) {
 793                         $params['value'] = $this->getVar( $params['var'] );
 794                 }
 795
 796                 if ( !isset( $params['attribs'] ) ) {
 797                         $params['attribs'] = [];
 798                 }
 799                 if ( !isset( $params['help'] ) ) {
 800                         $params['help'] = "";
 801                 }
 802
 803                 return $this->label(
 804                         $params['label'],
 805                         $params['controlName'],
 806                         Xml::input(
 807                                 $params['controlName'],
 808                                 30, // intended to be overridden by CSS
 809                                 $params['value'],
 810                                 $params['attribs'] + [
 811                                         'id' => $params['controlName'],
 812                                         'class' => 'config-input-text',
 813                                         'tabindex' => $this->nextTabIndex()
 814                                 ]
 815                         ),
 816                         $params['help']
 817                 );
 818         }
 819
 820         /**
 821          * Get a labelled textarea to configure a variable
 822          *
 823          * @param mixed[] $params
 824          *    Parameters are:
 825          *      var:         The variable to be configured (required)
 826          *      label:       The message name for the label (required)
 827          *      attribs:     Additional attributes for the input element (optional)
 828          *      controlName: The name for the input element (optional)
 829          *      value:       The current value of the variable (optional)
 830          *      help:        The html for the help text (optional)
 831          *
 832          * @return string
 833          */
 834         public function getTextArea( $params ) {
 835                 if ( !isset( $params['controlName'] ) ) {
 836                         $params['controlName'] = 'config_' . $params['var'];
 837                 }
 838
 839                 if ( !isset( $params['value'] ) ) {
 840                         $params['value'] = $this->getVar( $params['var'] );
 841                 }
 842
 843                 if ( !isset( $params['attribs'] ) ) {
 844                         $params['attribs'] = [];
 845                 }
 846                 if ( !isset( $params['help'] ) ) {
 847                         $params['help'] = "";
 848                 }
 849
 850                 return $this->label(
 851                         $params['label'],
 852                         $params['controlName'],
 853                         Xml::textarea(
 854                                 $params['controlName'],
 855                                 $params['value'],
 856                                 30,
 857                                 5,
 858                                 $params['attribs'] + [
 859                                         'id' => $params['controlName'],
 860                                         'class' => 'config-input-text',
 861                                         'tabindex' => $this->nextTabIndex()
 862                                 ]
 863                         ),
 864                         $params['help']
 865                 );
 866         }
 867
 868         /**
 869          * Get a labelled password box to configure a variable.
 870          *
 871          * Implements password hiding
 872          * @param mixed[] $params
 873          *    Parameters are:
 874          *      var:         The variable to be configured (required)
 875          *      label:       The message name for the label (required)
 876          *      attribs:     Additional attributes for the input element (optional)
 877          *      controlName: The name for the input element (optional)
 878          *      value:       The current value of the variable (optional)
 879          *      help:        The html for the help text (optional)
 880          *
 881          * @return string
 882          */
 883         public function getPasswordBox( $params ) {
 884                 if ( !isset( $params['value'] ) ) {
 885                         $params['value'] = $this->getVar( $params['var'] );
 886                 }
 887
 888                 if ( !isset( $params['attribs'] ) ) {
 889                         $params['attribs'] = [];
 890                 }
 891
 892                 $params['value'] = $this->getFakePassword( $params['value'] );
 893                 $params['attribs']['type'] = 'password';
 894
 895                 return $this->getTextBox( $params );
 896         }
 897
 898         /**
 899          * Get a labelled checkbox to configure a boolean variable.
 900          *
 901          * @param mixed[] $params
 902          *    Parameters are:
 903          *      var:         The variable to be configured (required)
 904          *      label:       The message name for the label (required)
 905          *      labelAttribs:Additional attributes for the label element (optional)
 906          *      attribs:     Additional attributes for the input element (optional)
 907          *      controlName: The name for the input element (optional)
 908          *      value:       The current value of the variable (optional)
 909          *      help:        The html for the help text (optional)
 910          *
 911          * @return string
 912          */
 913         public function getCheckBox( $params ) {
 914                 if ( !isset( $params['controlName'] ) ) {
 915                         $params['controlName'] = 'config_' . $params['var'];
 916                 }
 917
 918                 if ( !isset( $params['value'] ) ) {
 919                         $params['value'] = $this->getVar( $params['var'] );
 920                 }
 921
 922                 if ( !isset( $params['attribs'] ) ) {
 923                         $params['attribs'] = [];
 924                 }
 925                 if ( !isset( $params['help'] ) ) {
 926                         $params['help'] = "";
 927                 }
 928                 if ( !isset( $params['labelAttribs'] ) ) {
 929                         $params['labelAttribs'] = [];
 930                 }
 931                 $labelText = $params['rawtext'] ?? $this->parse( wfMessage( $params['label'] )->plain() );
 932
 933                 return "<div class=\"config-input-check\">\n" .
 934                         $params['help'] .
 935                         Html::rawElement(
 936                                 'label',
 937                                 $params['labelAttribs'],
 938                                 Xml::check(
 939                                         $params['controlName'],
 940                                         $params['value'],
 941                                         $params['attribs'] + [
 942                                                 'id' => $params['controlName'],
 943                                                 'tabindex' => $this->nextTabIndex(),
 944                                         ]
 945                                 ) .
 946                                 $labelText . "\n"
 947                                 ) .
 948                         "</div>\n";
 949         }
 950
 951         /**
 952          * Get a set of labelled radio buttons.
 953          *
 954          * @param mixed[] $params
 955          *    Parameters are:
 956          *      var:             The variable to be configured (required)
 957          *      label:           The message name for the label (required)
 958          *      itemLabelPrefix: The message name prefix for the item labels (required)
 959          *      itemLabels:      List of message names to use for the item labels instead
 960          *                       of itemLabelPrefix, keyed by values
 961          *      values:          List of allowed values (required)
 962          *      itemAttribs:     Array of attribute arrays, outer key is the value name (optional)
 963          *      commonAttribs:   Attribute array applied to all items
 964          *      controlName:     The name for the input element (optional)
 965          *      value:           The current value of the variable (optional)
 966          *      help:            The html for the help text (optional)
 967          *
 968          * @return string
 969          */
 970         public function getRadioSet( $params ) {
 971                 $items = $this->getRadioElements( $params );
 972
 973                 $label = $params['label'] ?? '';
 974
 975                 if ( !isset( $params['controlName'] ) ) {
 976                         $params['controlName'] = 'config_' . $params['var'];
 977                 }
 978
 979                 if ( !isset( $params['help'] ) ) {
 980                         $params['help'] = "";
 981                 }
 982
 983                 $s = "<ul>\n";
 984                 foreach ( $items as $value => $item ) {
 985                         $s .= "<li>$item</li>\n";
 986                 }
 987                 $s .= "</ul>\n";
 988
 989                 return $this->label( $label, $params['controlName'], $s, $params['help'] );
 990         }
 991
 992         /**
 993          * Get a set of labelled radio buttons. You probably want to use getRadioSet(), not this.
 994          *
 995          * @see getRadioSet
 996          *
 997          * @param mixed[] $params
 998          * @return array
 999          */
1000         public function getRadioElements( $params ) {
1001                 if ( !isset( $params['controlName'] ) ) {
1002                         $params['controlName'] = 'config_' . $params['var'];
1003                 }
1004
1005                 if ( !isset( $params['value'] ) ) {
1006                         $params['value'] = $this->getVar( $params['var'] );
1007                 }
1008
1009                 $items = [];
1010
1011                 foreach ( $params['values'] as $value ) {
1012                         $itemAttribs = [];
1013
1014                         if ( isset( $params['commonAttribs'] ) ) {
1015                                 $itemAttribs = $params['commonAttribs'];
1016                         }
1017
1018                         if ( isset( $params['itemAttribs'][$value] ) ) {
1019                                 $itemAttribs = $params['itemAttribs'][$value] + $itemAttribs;
1020                         }
1021
1022                         $checked = $value == $params['value'];
1023                         $id = $params['controlName'] . '_' . $value;
1024                         $itemAttribs['id'] = $id;
1025                         $itemAttribs['tabindex'] = $this->nextTabIndex();
1026
1027                         $items[$value] =
1028                                 Xml::radio( $params['controlName'], $value, $checked, $itemAttribs ) .
1029                                 "\u{00A0}" .
1030                                 Xml::tags( 'label', [ 'for' => $id ], $this->parse(
1031                                         isset( $params['itemLabels'] ) ?
1032                                                 wfMessage( $params['itemLabels'][$value] )->plain() :
1033                                                 wfMessage( $params['itemLabelPrefix'] . strtolower( $value ) )->plain()
1034                                 ) );
1035                 }
1036
1037                 return $items;
1038         }
1039
1040         /**
1041          * Output an error or warning box using a Status object.
1042          *
1043          * @param Status $status
1044          */
1045         public function showStatusBox( $status ) {
1046                 if ( !$status->isGood() ) {
1047                         $text = $status->getWikiText();
1048
1049                         if ( $status->isOK() ) {
1050                                 $box = Html::warningBox( $text, 'config-warning-box' );
1051                         } else {
1052                                 $box = Html::errorBox( $text, '', 'config-error-box' );
1053                         }
1054
1055                         $this->output->addHTML( $box );
1056                 }
1057         }
1058
1059         /**
1060          * Convenience function to set variables based on form data.
1061          * Assumes that variables containing "password" in the name are (potentially
1062          * fake) passwords.
1063          *
1064          * @param string[] $varNames
1065          * @param string $prefix The prefix added to variables to obtain form names
1066          *
1067          * @return string[]
1068          */
1069         public function setVarsFromRequest( $varNames, $prefix = 'config_' ) {
1070                 $newValues = [];
1071
1072                 foreach ( $varNames as $name ) {
1073                         $value = $this->request->getVal( $prefix . $name );
1074                         // T32524, do not trim passwords
1075                         if ( stripos( $name, 'password' ) === false ) {
1076                                 $value = trim( $value );
1077                         }
1078                         $newValues[$name] = $value;
1079
1080                         if ( $value === null ) {
1081                                 // Checkbox?
1082                                 $this->setVar( $name, false );
1083                         } elseif ( stripos( $name, 'password' ) !== false ) {
1084                                 $this->setPassword( $name, $value );
1085                         } else {
1086                                 $this->setVar( $name, $value );
1087                         }
1088                 }
1089
1090                 return $newValues;
1091         }
1092
1093         /**
1094          * Helper for WebInstallerOutput
1095          *
1096          * @internal For use by WebInstallerOutput
1097          * @param string $page
1098          * @return string
1099          */
1100         public function getDocUrl( $page ) {
1101                 $query = [ 'page' => $page ];
1102
1103                 if ( in_array( $this->currentPageName, $this->pageSequence ) ) {
1104                         $query['lastPage'] = $this->currentPageName;
1105                 }
1106
1107                 return $this->getUrl( $query );
1108         }
1109
1110         /**
1111          * Helper for sidebar links.
1112          *
1113          * @internal For use in WebInstallerOutput class
1114          * @param string $url
1115          * @param string $linkText
1116          * @return string HTML
1117          */
1118         public function makeLinkItem( $url, $linkText ) {
1119                 return Html::rawElement( 'li', [],
1120                         Html::element( 'a', [ 'href' => $url ], $linkText )
1121                 );
1122         }
1123
1124         /**
1125          * Helper for "Download LocalSettings" link.
1126          *
1127          * @internal For use in WebInstallerComplete class
1128          * @return string Html for download link
1129          */
1130         public function makeDownloadLinkHtml() {
1131                 $anchor = Html::rawElement( 'a',
1132                         [ 'href' => $this->getUrl( [ 'localsettings' => 1 ] ) ],
1133                         wfMessage( 'config-download-localsettings' )->parse()
1134                 );
1135
1136                 return Html::rawElement( 'div', [ 'class' => 'config-download-link' ], $anchor );
1137         }
1138
1139         /**
1140          * If the software package wants the LocalSettings.php file
1141          * to be placed in a specific location, override this function
1142          * (see mw-config/overrides/README) to return the path of
1143          * where the file should be saved, or false for a generic
1144          * "in the base of your install"
1145          *
1146          * @since 1.27
1147          * @return string|bool
1148          */
1149         public function getLocalSettingsLocation() {
1150                 return false;
1151         }
1152
1153         /**
1154          * @return bool
1155          */
1156         public function envCheckPath() {
1157                 // PHP_SELF isn't available sometimes, such as when PHP is CGI but
1158                 // cgi.fix_pathinfo is disabled. In that case, fall back to SCRIPT_NAME
1159                 // to get the path to the current script... hopefully it's reliable. SIGH
1160                 $path = false;
1161                 if ( !empty( $_SERVER['PHP_SELF'] ) ) {
1162                         $path = $_SERVER['PHP_SELF'];
1163                 } elseif ( !empty( $_SERVER['SCRIPT_NAME'] ) ) {
1164                         $path = $_SERVER['SCRIPT_NAME'];
1165                 }
1166                 if ( $path === false ) {
1167                         $this->showError( 'config-no-uri' );
1168                         return false;
1169                 }
1170
1171                 return parent::envCheckPath();
1172         }
1173
1174         public function envPrepPath() {
1175                 parent::envPrepPath();
1176                 // PHP_SELF isn't available sometimes, such as when PHP is CGI but
1177                 // cgi.fix_pathinfo is disabled. In that case, fall back to SCRIPT_NAME
1178                 // to get the path to the current script... hopefully it's reliable. SIGH
1179                 $path = false;
1180                 if ( !empty( $_SERVER['PHP_SELF'] ) ) {
1181                         $path = $_SERVER['PHP_SELF'];
1182                 } elseif ( !empty( $_SERVER['SCRIPT_NAME'] ) ) {
1183                         $path = $_SERVER['SCRIPT_NAME'];
1184                 }
1185                 if ( $path !== false ) {
1186                         $scriptPath = preg_replace( '{^(.*)/(mw-)?config.*$}', '$1', $path );
1187
1188                         $this->setVar( 'wgScriptPath', "$scriptPath" );
1189                         // Update variables set from Setup.php that are derived from wgScriptPath
1190                         $this->setVar( 'wgScript', "$scriptPath/index.php" );
1191                         $this->setVar( 'wgLoadScript', "$scriptPath/load.php" );
1192                         $this->setVar( 'wgStylePath', "$scriptPath/skins" );
1193                         $this->setVar( 'wgLocalStylePath', "$scriptPath/skins" );
1194                         $this->setVar( 'wgExtensionAssetsPath', "$scriptPath/extensions" );
1195                         $this->setVar( 'wgUploadPath', "$scriptPath/images" );
1196                         $this->setVar( 'wgResourceBasePath', "$scriptPath" );
1197                 }
1198         }
1199
1200         /**
1201          * @return string
1202          */
1203         protected function envGetDefaultServer() {
1204                 return WebRequest::detectServer();
1205         }
1206
1207         /**
1208          * Actually output LocalSettings.php for download
1209          *
1210          * @suppress SecurityCheck-XSS
1211          */
1212         private function outputLS() {
1213                 $this->request->response()->header( 'Content-type: application/x-httpd-php' );
1214                 $this->request->response()->header(
1215                         'Content-Disposition: attachment; filename="LocalSettings.php"'
1216                 );
1217
1218                 $ls = InstallerOverrides::getLocalSettingsGenerator( $this );
1219                 $rightsProfile = $this->rightsProfiles[$this->getVar( '_RightsProfile' )];
1220                 foreach ( $rightsProfile as $group => $rightsArr ) {
1221                         $ls->setGroupRights( $group, $rightsArr );
1222                 }
1223                 echo $ls->getText();
1224         }
1225
1226         /**
1227          * Output stylesheet for web installer pages
1228          */
1229         public function outputCss() {
1230                 $this->request->response()->header( 'Content-type: text/css' );
1231                 echo $this->output->getCSS();
1232         }
1233
1234         /**
1235          * @return string[]
1236          */
1237         public function getPhpErrors() {
1238                 return $this->phpErrors;
1239         }
1240
1241 }