includes/installer/WebInstaller.php

   1 <?php
   2
   3 class WebInstaller extends Installer {
   4         /** WebRequest object */
   5         var $request;
   6
   7         /** Cached session array */
   8         var $session;
   9
  10         /** Captured PHP error text. Temporary.
  11          */
  12         var $phpErrors;
  13
  14         /**
  15          * The main sequence of page names. These will be displayed in turn.
  16          * To add one:
  17          *    * Add it here
  18          *    * Add a config-page-<name> message
  19          *    * Add a WebInstaller_<name> class
  20          */
  21         var $pageSequence = array(
  22                 'Language',
  23                 'Welcome',
  24                 'DBConnect',
  25                 'Upgrade',
  26                 'DBSettings',
  27                 'Name',
  28                 'Options',
  29                 'Install',
  30                 'Complete',
  31         );
  32
  33         /**
  34          * Out of sequence pages, selectable by the user at any time
  35          */
  36         var $otherPages = array(
  37                 'Restart',
  38                 'Readme',
  39                 'ReleaseNotes',
  40                 'Copying',
  41                 'UpgradeDoc', // Can't use Upgrade due to Upgrade step
  42         );
  43
  44         /**
  45          * Array of pages which have declared that they have been submitted, have validated
  46          * their input, and need no further processing
  47          */
  48         var $happyPages;
  49
  50         /**
  51          * List of "skipped" pages. These are pages that will automatically continue
  52          * to the next page on any GET request. To avoid breaking the "back" button,
  53          * they need to be skipped during a back operation.
  54          */
  55         var $skippedPages;
  56
  57         /**
  58          * Flag indicating that session data may have been lost
  59          */
  60         var $showSessionWarning = false;
  61
  62         var $helpId = 0;
  63         var $tabIndex = 1;
  64
  65         var $currentPageName;
  66
  67         /** Constructor */
  68         function __construct( $request ) {
  69                 parent::__construct();
  70                 $this->output = new WebInstallerOutput( $this );
  71                 $this->request = $request;
  72         }
  73
  74         /**
  75          * Main entry point.
  76          * @param $session Array: initial session array
  77          * @return Array: new session array
  78          */
  79         function execute( $session ) {
  80                 $this->session = $session;
  81                 if ( isset( $session['settings'] ) ) {
  82                         $this->settings = $session['settings'] + $this->settings;
  83                 }
  84                 $this->exportVars();
  85                 $this->setupLanguage();
  86
  87                 if ( isset( $session['happyPages'] ) ) {
  88                         $this->happyPages = $session['happyPages'];
  89                 } else {
  90                         $this->happyPages = array();
  91                 }
  92                 if ( isset( $session['skippedPages'] ) ) {
  93                         $this->skippedPages = $session['skippedPages'];
  94                 } else {
  95                         $this->skippedPages = array();
  96                 }
  97                 $lowestUnhappy = $this->getLowestUnhappy();
  98
  99                 # Special case for Creative Commons partner chooser box
 100                 if ( $this->request->getVal( 'SubmitCC' ) ) {
 101                         $page = $this->getPageByName( 'Options' );
 102                         $this->output->useShortHeader();
 103                         $page->submitCC();
 104                         return $this->finish();
 105                 }
 106                 if ( $this->request->getVal( 'ShowCC' ) ) {
 107                         $page = $this->getPageByName( 'Options' );
 108                         $this->output->useShortHeader();
 109                         $this->output->addHTML( $page->getCCDoneBox() );
 110                         return $this->finish();
 111                 }
 112
 113                 # Get the page name
 114                 $pageName = $this->request->getVal( 'page' );
 115
 116                 if ( in_array( $pageName, $this->otherPages ) ) {
 117                         # Out of sequence
 118                         $pageId = false;
 119                         $page = $this->getPageByName( $pageName );
 120                 } else {
 121                         # Main sequence
 122                         if ( !$pageName || !in_array( $pageName, $this->pageSequence ) ) {
 123                                 $pageId = $lowestUnhappy;
 124                         } else {
 125                                 $pageId = array_search( $pageName, $this->pageSequence );
 126                         }
 127
 128                         # If necessary, move back to the lowest-numbered unhappy page
 129                         if ( $pageId > $lowestUnhappy ) {
 130                                 $pageId = $lowestUnhappy;
 131                                 if ( $lowestUnhappy == 0 ) {
 132                                         # Knocked back to start, possible loss of session data
 133                                         $this->showSessionWarning = true;
 134                                 }
 135                         }
 136                         $pageName = $this->pageSequence[$pageId];
 137                         $page = $this->getPageByName( $pageName );
 138                 }
 139
 140                 # If a back button was submitted, go back without submitting the form data
 141                 if ( $this->request->wasPosted() && $this->request->getBool( 'submit-back' ) ) {
 142                         if ( $this->request->getVal( 'lastPage' ) ) {
 143                                 $nextPage = $this->request->getVal( 'lastPage' );
 144                         } elseif ( $pageId !== false ) {
 145                                 # Main sequence page
 146                                 # Skip the skipped pages
 147                                 $nextPageId = $pageId;
 148                                 do {
 149                                         $nextPageId--;
 150                                         $nextPage = $this->pageSequence[$nextPageId];
 151                                 } while( isset( $this->skippedPages[$nextPage] ) );
 152                         } else {
 153                                 $nextPage = $this->pageSequence[$lowestUnhappy];
 154                         }
 155                         $this->output->redirect( $this->getUrl( array( 'page' => $nextPage ) ) );
 156                         return $this->finish();
 157                 }
 158
 159                 # Execute the page
 160                 $this->currentPageName = $page->getName();
 161                 $this->startPageWrapper( $pageName );
 162                 $result = $page->execute();
 163                 $this->endPageWrapper();
 164
 165                 if ( $result == 'skip' ) {
 166                         # Page skipped without explicit submission
 167                         # Skip it when we click "back" so that we don't just go forward again
 168                         $this->skippedPages[$pageName] = true;
 169                         $result = 'continue';
 170                 } else {
 171                         unset( $this->skippedPages[$pageName] );
 172                 }
 173
 174                 # If it was posted, the page can request a continue to the next page
 175                 if ( $result === 'continue' && !$this->output->headerDone() ) {
 176                         if ( $pageId !== false ) {
 177                                 $this->happyPages[$pageId] = true;
 178                         }
 179                         $lowestUnhappy = $this->getLowestUnhappy();
 180
 181                         if ( $this->request->getVal( 'lastPage' ) ) {
 182                                 $nextPage = $this->request->getVal( 'lastPage' );
 183                         } elseif ( $pageId !== false ) {
 184                                 $nextPage = $this->pageSequence[$pageId + 1];
 185                         } else {
 186                                 $nextPage = $this->pageSequence[$lowestUnhappy];
 187                         }
 188                         if ( array_search( $nextPage, $this->pageSequence ) > $lowestUnhappy ) {
 189                                 $nextPage = $this->pageSequence[$lowestUnhappy];
 190                         }
 191                         $this->output->redirect( $this->getUrl( array( 'page' => $nextPage ) ) );
 192                 }
 193                 return $this->finish();
 194         }
 195
 196         function getLowestUnhappy() {
 197                 if ( count( $this->happyPages ) == 0 ) {
 198                         return 0;
 199                 } else {
 200                         return max( array_keys( $this->happyPages ) ) + 1;
 201                 }
 202         }
 203
 204         /**
 205          * Start the PHP session. This may be called before execute() to start the PHP session.
 206          */
 207         function startSession() {
 208                 $sessPath = $this->getSessionSavePath();
 209                 if( $sessPath != '' ) {
 210                         if( !is_dir( $sessPath ) || !is_writeable( $sessPath ) ) {
 211                                 $this->showError( 'config-session-path-bad', $sessPath );
 212                                 return false;
 213                         }
 214                 } else {
 215                         // If the path is unset it'll default to some system bit, which *probably* is ok...
 216                         // not sure how to actually get what will be used.
 217                 }
 218                 if( wfIniGetBool( 'session.auto_start' ) || session_id() ) {
 219                         // Done already
 220                         return true;
 221                 }
 222
 223                 $this->phpErrors = array();
 224                 set_error_handler( array( $this, 'errorHandler' ) );
 225                 session_start();
 226                 restore_error_handler();
 227                 if ( $this->phpErrors ) {
 228                         $this->showError( 'config-session-error', $this->phpErrors[0] );
 229                         return false;
 230                 }
 231                 return true;
 232         }
 233
 234         /**
 235          * Get the value of session.save_path
 236          *
 237          * Per http://www.php.net/manual/en/ref.session.php#ini.session.save-path,
 238          * this might have some additional preceding parts which need to be
 239          * ditched
 240          *
 241          * @return String
 242          */
 243         private function getSessionSavePath() {
 244                 $path = ini_get( 'session.save_path' );
 245                 $path = ltrim( substr( $path, strrpos( $path, ';' ) ), ';');
 246
 247                 return $path;
 248         }
 249
 250         /**
 251          * Show an error message in a box. Parameters are like wfMsg().
 252          */
 253         function showError( $msg /*...*/ ) {
 254                 $args = func_get_args();
 255                 array_shift( $args );
 256                 $args = array_map( 'htmlspecialchars', $args );
 257                 $msg = wfMsgReal( $msg, $args, false, false, false );
 258                 $this->output->addHTML( $this->getErrorBox( $msg ) );
 259         }
 260
 261         /**
 262          * Temporary error handler for session start debugging
 263          */
 264         function errorHandler( $errno, $errstr ) {
 265                 $this->phpErrors[] = $errstr;
 266         }
 267
 268         /**
 269          * Clean up from execute()
 270          * @private.
 271          */
 272         function finish() {
 273                 $this->output->output();
 274                 $this->session['happyPages'] = $this->happyPages;
 275                 $this->session['skippedPages'] = $this->skippedPages;
 276                 $this->session['settings'] = $this->settings;
 277                 return $this->session;
 278         }
 279
 280         /**
 281          * Get a URL for submission back to the same script
 282          */
 283         function getUrl( $query = array() ) {
 284                 $url = $this->request->getRequestURL();
 285                 # Remove existing query
 286                 $url = preg_replace( '/\?.*$/', '', $url );
 287                 if ( $query ) {
 288                         $url .= '?' . wfArrayToCGI( $query );
 289                 }
 290                 return $url;
 291         }
 292
 293         /**
 294          * Get a WebInstallerPage from the main sequence, by ID
 295          */
 296         function getPageById( $id ) {
 297                 $pageName = $this->pageSequence[$id];
 298                 $pageClass = 'WebInstaller_' . $pageName;
 299                 return new $pageClass( $this );
 300         }
 301
 302         /**
 303          * Get a WebInstallerPage by name
 304          */
 305         function getPageByName( $pageName ) {
 306                 $pageClass = 'WebInstaller_' . $pageName;
 307                 return new $pageClass( $this );
 308         }
 309
 310         /**
 311          * Get a session variable
 312          */
 313         function getSession( $name, $default = null ) {
 314                 if ( !isset( $this->session[$name] ) ) {
 315                         return $default;
 316                 } else {
 317                         return $this->session[$name];
 318                 }
 319         }
 320
 321         /**
 322          * Set a session variable
 323          */
 324         function setSession( $name, $value ) {
 325                 $this->session[$name] = $value;
 326         }
 327
 328         /**
 329          * Get the next tabindex attribute value
 330          */
 331         function nextTabIndex() {
 332                 return $this->tabIndex++;
 333         }
 334
 335         /**
 336          * Initializes language-related variables
 337          */
 338         function setupLanguage() {
 339                 global $wgLang, $wgContLang, $wgLanguageCode;
 340                 if ( $this->getSession( 'test' ) === null && !$this->request->wasPosted() ) {
 341                         $wgLanguageCode = $this->getAcceptLanguage();
 342                         $wgLang = $wgContLang = Language::factory( $wgLanguageCode );
 343                         $this->setVar( 'wgLanguageCode', $wgLanguageCode );
 344                         $this->setVar( '_UserLang', $wgLanguageCode );
 345                 } else {
 346                         $wgLanguageCode = $this->getVar( 'wgLanguageCode' );
 347                         $wgLang = Language::factory( $this->getVar( '_UserLang' ) );
 348                         $wgContLang = Language::factory( $wgLanguageCode );
 349                 }
 350         }
 351
 352         /**
 353          * Retrieves MediaWiki language from Accept-Language HTTP header
 354          */
 355         function getAcceptLanguage() {
 356                 global $wgLanguageCode;
 357
 358                 $mwLanguages = Language::getLanguageNames();
 359                 $langs = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
 360                 foreach ( explode( ';', $langs ) as $splitted ) {
 361                         foreach ( explode( ',', $splitted ) as $lang ) {
 362                                 $lang = trim( strtolower( $lang ) );
 363                                 if ( $lang == '' || $lang[0] == 'q' ) {
 364                                         continue;
 365                                 }
 366                                 if ( isset( $mwLanguages[$lang] ) ) {
 367                                         return $lang;
 368                                 }
 369                                 $lang = preg_replace( '/^(.*?)(?=-[^-]*)$/', '\\1', $lang );
 370                                 if ( $lang != '' && isset( $mwLanguages[$lang] ) ) {
 371                                         return $lang;
 372                                 }
 373                         }
 374                 }
 375                 return $wgLanguageCode;
 376         }
 377
 378         /**
 379          * Called by execute() before page output starts, to show a page list
 380          */
 381         function startPageWrapper( $currentPageName ) {
 382                 $s = "<div class=\"config-page-wrapper\">\n" .
 383                         "<div class=\"config-page-list\"><ul>\n";
 384                 $lastHappy = -1;
 385                 foreach ( $this->pageSequence as $id => $pageName ) {
 386                         $happy = !empty( $this->happyPages[$id] );
 387                         $s .= $this->getPageListItem( $pageName,
 388                                 $happy || $lastHappy == $id - 1, $currentPageName );
 389                         if ( $happy ) {
 390                                 $lastHappy = $id;
 391                         }
 392                 }
 393                 $s .= "</ul><br/><ul>\n";
 394                 foreach ( $this->otherPages as $pageName ) {
 395                         $s .= $this->getPageListItem( $pageName, true, $currentPageName );
 396                 }
 397                 $s .= "</ul></div>\n". // end list pane
 398                         "<div class=\"config-page\">\n" .
 399                         Xml::element( 'h2', array(),
 400                                 wfMsg( 'config-page-' . strtolower( $currentPageName ) ) );
 401
 402                 $this->output->addHTMLNoFlush( $s );
 403         }
 404
 405         /**
 406          * Get a list item for the page list
 407          */
 408         function getPageListItem( $pageName, $enabled, $currentPageName ) {
 409                 $s = "<li class=\"config-page-list-item\">";
 410                 $name = wfMsg( 'config-page-' . strtolower( $pageName ) );
 411                 if ( $enabled ) {
 412                         $query = array( 'page' => $pageName );
 413                         if ( !in_array( $pageName, $this->pageSequence ) ) {
 414                                 if ( in_array( $currentPageName, $this->pageSequence ) ) {
 415                                         $query['lastPage'] = $currentPageName;
 416                                 }
 417                                 $link = Xml::element( 'a',
 418                                         array(
 419                                                 'href' => $this->getUrl( $query )
 420                                         ),
 421                                         $name
 422                                 );
 423                         } else {
 424                                 $link = htmlspecialchars( $name );
 425                         }
 426                         if ( $pageName == $currentPageName ) {
 427                                 $s .= "<span class=\"config-page-current\">$link</span>";
 428                         } else {
 429                                 $s .= $link;
 430                         }
 431                 } else {
 432                         $s .= Xml::element( 'span',
 433                                 array(
 434                                         'class' => 'config-page-disabled'
 435                                 ),
 436                                 $name
 437                         );
 438                 }
 439                 $s .= "</li>\n";
 440                 return $s;
 441         }
 442
 443         /**
 444          * Output some stuff after a page is finished
 445          */
 446         function endPageWrapper() {
 447                 $this->output->addHTMLNoFlush(
 448                         "</div>\n" .
 449                         "<br style=\"clear:both\"/>\n" .
 450                         "</div>" );
 451         }
 452
 453         /**
 454          * Get HTML for an error box with an icon
 455          *
 456          * @param $text String: wikitext, get this with wfMsgNoTrans()
 457          */
 458         function getErrorBox( $text ) {
 459                 return $this->getInfoBox( $text, 'critical-32.png', 'config-error-box' );
 460         }
 461
 462         /**
 463          * Get HTML for a warning box with an icon
 464          *
 465          * @param $text String: wikitext, get this with wfMsgNoTrans()
 466          */
 467         function getWarningBox( $text ) {
 468                 return $this->getInfoBox( $text, 'warning-32.png', 'config-warning-box' );
 469         }
 470
 471         /**
 472          * Get HTML for an info box with an icon
 473          *
 474          * @param $text String: wikitext, get this with wfMsgNoTrans()
 475          * @param $icon String: icon name, file in skins/common/images
 476          * @param $class String: additional class name to add to the wrapper div
 477          */
 478         function getInfoBox( $text, $icon = 'info-32.png', $class = false ) {
 479                 $s =
 480                         "<div class=\"config-info $class\">\n" .
 481                                 "<div class=\"config-info-left\">\n" .
 482                                 Xml::element( 'img',
 483                                         array(
 484                                                 'src' => '../skins/common/images/' . $icon,
 485                                                 'alt' => wfMsg( 'config-information' ),
 486                                         )
 487                                 ) . "\n" .
 488                                 "</div>\n" .
 489                                 "<div class=\"config-info-right\">\n" .
 490                                         $this->parse( $text ) . "\n" .
 491                                 "</div>\n" .
 492                                 "<div style=\"clear: left;\"></div>\n" .
 493                         "</div>\n";
 494                 return $s;
 495         }
 496
 497         /**
 498          * Get small text indented help for a preceding form field.
 499          * Parameters like wfMsg().
 500          */
 501         function getHelpBox( $msg /*, ... */ ) {
 502                 $args = func_get_args();
 503                 array_shift( $args );
 504                 $args = array_map( 'htmlspecialchars', $args );
 505                 $text = wfMsgReal( $msg, $args, false, false, false );
 506                 $html = $this->parse( $text, true );
 507                 $id = $this->helpId++;
 508                 $alt = wfMsg( 'help' );
 509
 510                 return
 511                         "<div class=\"config-help-wrapper\">\n" .
 512                         "<div class=\"config-help-message\">\n" .
 513                          $html .
 514                         "</div>\n" .
 515                         "<div class=\"config-show-help\">\n" .
 516                         "<a href=\"#\">" .
 517                         wfMsgHtml( 'config-show-help' ) .
 518                         "</a></div>\n" .
 519                         "<div class=\"config-hide-help\">\n" .
 520                         "<a href=\"#\">" .
 521                         wfMsgHtml( 'config-hide-help' ) .
 522                         "</a></div>\n</div>\n";
 523         }
 524
 525         /**
 526          * Output a help box
 527          */
 528         function showHelpBox( $msg /*, ... */ ) {
 529                 $args = func_get_args();
 530                 $html = call_user_func_array( array( $this, 'getHelpBox' ), $args );
 531                 $this->output->addHTML( $html );
 532         }
 533
 534         /**
 535          * Show a short informational message
 536          * Output looks like a list.
 537          */
 538         function showMessage( $msg /*, ... */ ) {
 539                 $args = func_get_args();
 540                 array_shift( $args );
 541                 $html = '<div class="config-message">' .
 542                         $this->parse( wfMsgReal( $msg, $args, false, false, false ) ) .
 543                         "</div>\n";
 544                 $this->output->addHTML( $html );
 545         }
 546
 547         /**
 548          * Label a control by wrapping a config-input div around it and putting a
 549          * label before it
 550          */
 551         function label( $msg, $forId, $contents ) {
 552                 if ( strval( $msg ) == '' ) {
 553                         $labelText = '&nbsp;';
 554                 } else {
 555                         $labelText = wfMsgHtml( $msg );
 556                 }
 557                 $attributes = array( 'class' => 'config-label' );
 558                 if ( $forId ) {
 559                         $attributes['for'] = $forId;
 560                 }
 561                 return
 562                         "<div class=\"config-input\">\n" .
 563                         Xml::tags( 'label',
 564                                 $attributes,
 565                                 $labelText ) . "\n" .
 566                         $contents .
 567                         "</div>\n";
 568         }
 569
 570         /**
 571          * Get a labelled text box to configure a variable
 572          *
 573          * @param $params Array
 574          *    Parameters are:
 575          *      var:        The variable to be configured (required)
 576          *      label:      The message name for the label (required)
 577          *      attribs:    Additional attributes for the input element (optional)
 578          *      controlName: The name for the input element (optional)
 579          *      value:      The current value of the variable (optional)
 580          */
 581         function getTextBox( $params ) {
 582                 if ( !isset( $params['controlName'] ) ) {
 583                         $params['controlName'] = 'config_' . $params['var'];
 584                 }
 585                 if ( !isset( $params['value'] ) ) {
 586                         $params['value'] = $this->getVar( $params['var'] );
 587                 }
 588                 if ( !isset( $params['attribs'] ) ) {
 589                         $params['attribs'] = array();
 590                 }
 591                 return
 592                         $this->label(
 593                                 $params['label'],
 594                                 $params['controlName'],
 595                                 Xml::input(
 596                                         $params['controlName'],
 597                                         30, // intended to be overridden by CSS
 598                                         $params['value'],
 599                                         $params['attribs'] + array(
 600                                                 'id' => $params['controlName'],
 601                                                 'class' => 'config-input-text',
 602                                                 'tabindex' => $this->nextTabIndex()
 603                                         )
 604                                 )
 605                         );
 606         }
 607
 608         /**
 609          * Get a labelled password box to configure a variable
 610          *
 611          * Implements password hiding
 612          * @param $params Array
 613          *    Parameters are:
 614          *      var:        The variable to be configured (required)
 615          *      label:      The message name for the label (required)
 616          *      attribs:    Additional attributes for the input element (optional)
 617          *      controlName: The name for the input element (optional)
 618          *      value:      The current value of the variable (optional)
 619          */
 620         function getPasswordBox( $params ) {
 621                 if ( !isset( $params['value'] ) ) {
 622                         $params['value'] = $this->getVar( $params['var'] );
 623                 }
 624                 if ( !isset( $params['attribs'] ) ) {
 625                         $params['attribs'] = array();
 626                 }
 627                 $params['value'] = $this->getFakePassword( $params['value'] );
 628                 $params['attribs']['type'] = 'password';
 629                 return $this->getTextBox( $params );
 630         }
 631
 632         /**
 633          * Get a labelled checkbox to configure a boolean variable
 634          *
 635          * @param $params Array
 636          *    Parameters are:
 637          *      var:        The variable to be configured (required)
 638          *      label:      The message name for the label (required)
 639          *      attribs:    Additional attributes for the input element (optional)
 640          *      controlName: The name for the input element (optional)
 641          *      value:      The current value of the variable (optional)
 642          */
 643         function getCheckBox( $params ) {
 644                 if ( !isset( $params['controlName'] ) ) {
 645                         $params['controlName'] = 'config_' . $params['var'];
 646                 }
 647                 if ( !isset( $params['value'] ) ) {
 648                         $params['value'] = $this->getVar( $params['var'] );
 649                 }
 650                 if ( !isset( $params['attribs'] ) ) {
 651                         $params['attribs'] = array();
 652                 }
 653                 if( isset( $params['rawtext'] ) ) {
 654                         $labelText = $params['rawtext'];
 655                 } else {
 656                         $labelText = $this->parse( wfMsg( $params['label'] ) );
 657                 }
 658                 return
 659                         "<div class=\"config-input-check\">\n" .
 660                         "<label>\n" .
 661                         Xml::check(
 662                                 $params['controlName'],
 663                                 $params['value'],
 664                                 $params['attribs'] + array(
 665                                         'id' => $params['controlName'],
 666                                         'class' => 'config-input-text',
 667                                         'tabindex' => $this->nextTabIndex(),
 668                                 )
 669                         ) .
 670                         $labelText . "\n" .
 671                         "</label>\n" .
 672                         "</div>\n";
 673         }
 674
 675         /**
 676          * Get a set of labelled radio buttons
 677          *
 678          * @param $params Array
 679          *    Parameters are:
 680          *      var:            The variable to be configured (required)
 681          *      label:          The message name for the label (required)
 682          *      itemLabelPrefix: The message name prefix for the item labels (required)
 683          *      values:         List of allowed values (required)
 684          *      itemAttribs     Array of attribute arrays, outer key is the value name (optional)
 685          *      commonAttribs   Attribute array applied to all items
 686          *      controlName:    The name for the input element (optional)
 687          *      value:          The current value of the variable (optional)
 688          */
 689         function getRadioSet( $params ) {
 690                 if ( !isset( $params['controlName']  ) ) {
 691                         $params['controlName'] = 'config_' . $params['var'];
 692                 }
 693                 if ( !isset( $params['value'] ) ) {
 694                         $params['value'] = $this->getVar( $params['var'] );
 695                 }
 696                 if ( !isset( $params['label'] ) ) {
 697                         $label = '';
 698                 } else {
 699                         $label = $this->parse( wfMsgNoTrans( $params['label'] ) );
 700                 }
 701                 $s = "<label class=\"config-label\">\n" .
 702                         $label .
 703                         "</label>\n" .
 704                         "<ul class=\"config-settings-block\">\n";
 705                 foreach ( $params['values'] as $value ) {
 706                         $itemAttribs = array();
 707                         if ( isset( $params['commonAttribs'] ) ) {
 708                                 $itemAttribs = $params['commonAttribs'];
 709                         }
 710                         if ( isset( $params['itemAttribs'][$value] ) ) {
 711                                 $itemAttribs = $params['itemAttribs'][$value] + $itemAttribs;
 712                         }
 713                         $checked = $value == $params['value'];
 714                         $id = $params['controlName'] . '_' . $value;
 715                         $itemAttribs['id'] = $id;
 716                         $itemAttribs['tabindex'] = $this->nextTabIndex();
 717                         $s .=
 718                                 '<li>' .
 719                                 Xml::radio( $params['controlName'], $value, $checked, $itemAttribs ) .
 720                                 '&nbsp;' .
 721                                 Xml::tags( 'label', array( 'for' => $id ), $this->parse(
 722                                         wfMsgNoTrans( $params['itemLabelPrefix'] . strtolower( $value ) )
 723                                 ) ) .
 724                                 "</li>\n";
 725                 }
 726                 $s .= "</ul>\n";
 727                 return $s;
 728         }
 729
 730         /**
 731          * Output an error box using a Status object
 732          */
 733         function showStatusErrorBox( $status ) {
 734                 $text = $status->getWikiText();
 735                 $this->output->addHTML( $this->getErrorBox( $text ) );
 736         }
 737
 738         function showStatusError( $status ) {
 739                 $text = $status->getWikiText();
 740                 $this->output->addWikiText(
 741                         "<div class=\"config-message\">\n" .
 742                         $text .
 743                         "</div>"
 744                 );
 745         }
 746
 747         /**
 748          * Convenience function to set variables based on form data.
 749          * Assumes that variables containing "password" in the name are (potentially
 750          * fake) passwords.
 751          *
 752          * @param $varNames Array
 753          * @param $prefix String: the prefix added to variables to obtain form names
 754          */
 755         function setVarsFromRequest( $varNames, $prefix = 'config_' ) {
 756                 $newValues = array();
 757                 foreach ( $varNames as $name ) {
 758                         $value = trim( $this->request->getVal( $prefix . $name ) );
 759                         $newValues[$name] = $value;
 760                         if ( $value === null ) {
 761                                 // Checkbox?
 762                                 $this->setVar( $name, false );
 763                         } else {
 764                                 if ( stripos( $name, 'password' ) !== false ) {
 765                                         $this->setPassword( $name, $value );
 766                                 } else {
 767                                         $this->setVar( $name, $value );
 768                                 }
 769                         }
 770                 }
 771                 return $newValues;
 772         }
 773
 774         /**
 775          * Get the starting tags of a fieldset
 776          *
 777          * @param $legend String: message name
 778          */
 779         function getFieldsetStart( $legend ) {
 780                 return "\n<fieldset><legend>" . wfMsgHtml( $legend ) . "</legend>\n";
 781         }
 782
 783         /**
 784          * Get the end tag of a fieldset
 785          */
 786         function getFieldsetEnd() {
 787                 return "</fieldset>\n";
 788         }
 789
 790         /**
 791          * Helper for Installer::docLink()
 792          */
 793         function getDocUrl( $page ) {
 794                 $url = "{$_SERVER['PHP_SELF']}?page=" . urlencode( $page );
 795                 if ( in_array( $this->currentPageName, $this->pageSequence ) ) {
 796                         $url .= '&lastPage=' . urlencode( $this->currentPageName );
 797                 }
 798                 return $url;
 799         }
 800 }
 801
 802 class WebInstallerPage {
 803         function __construct( $parent ) {
 804                 $this->parent = $parent;
 805         }
 806
 807         function addHTML( $html ) {
 808                 $this->parent->output->addHTML( $html );
 809         }
 810
 811         function startForm() {
 812                 $this->addHTML(
 813                         "<div class=\"config-section\">\n" .
 814                         Xml::openElement(
 815                                 'form',
 816                                 array(
 817                                         'method' => 'post',
 818                                         'action' => $this->parent->getUrl( array( 'page' => $this->getName() ) )
 819                                 )
 820                         ) . "\n"
 821                 );
 822         }
 823
 824         function endForm( $continue = 'continue' ) {
 825                 $this->parent->output->outputWarnings();
 826                 $s = "<div class=\"config-submit\">\n";
 827                 $id = $this->getId();
 828                 if ( $id === false ) {
 829                         $s .= Xml::hidden( 'lastPage', $this->parent->request->getVal( 'lastPage' ) );
 830                 }
 831                 if ( $continue ) {
 832                         // Fake submit button for enter keypress
 833                         $s .= Xml::submitButton( wfMsg( "config-$continue" ),
 834                                 array( 'name' => "enter-$continue", 'style' => 'display:none' ) ) . "\n";
 835                 }
 836                 if ( $id !== 0 ) {
 837                         $s .= Xml::submitButton( wfMsg( 'config-back' ),
 838                                 array(
 839                                         'name' => 'submit-back',
 840                                         'tabindex' => $this->parent->nextTabIndex()
 841                                 ) ) . "\n";
 842                 }
 843                 if ( $continue ) {
 844                         $s .= Xml::submitButton( wfMsg( "config-$continue" ),
 845                                 array(
 846                                         'name' => "submit-$continue",
 847                                         'tabindex' => $this->parent->nextTabIndex(),
 848                                 ) ) . "\n";
 849                 }
 850                 $s .= "</div></form></div>\n";
 851                 $this->addHTML( $s );
 852         }
 853
 854         function getName() {
 855                 return str_replace( 'WebInstaller_', '', get_class( $this ) );
 856         }
 857
 858         function getId() {
 859                 return array_search( $this->getName(), $this->parent->pageSequence );
 860         }
 861
 862         function execute() {
 863                 if ( $this->parent->request->wasPosted() ) {
 864                         return 'continue';
 865                 } else {
 866                         $this->startForm();
 867                         $this->addHTML( 'Mockup' );
 868                         $this->endForm();
 869                 }
 870         }
 871
 872         function getVar( $var ) {
 873                 return $this->parent->getVar( $var );
 874         }
 875
 876         function setVar( $name, $value ) {
 877                 $this->parent->setVar( $name, $value );
 878         }
 879 }
 880
 881 class WebInstaller_Language extends WebInstallerPage {
 882         function execute() {
 883                 global $wgLang;
 884                 $r = $this->parent->request;
 885                 $userLang = $r->getVal( 'UserLang' );
 886                 $contLang = $r->getVal( 'ContLang' );
 887
 888                 $lifetime = intval( ini_get( 'session.gc_maxlifetime' ) );
 889                 if ( !$lifetime ) {
 890                         $lifetime = 1440; // PHP default
 891                 }
 892
 893                 if ( $r->wasPosted() ) {
 894                         # Do session test
 895                         if ( $this->parent->getSession( 'test' ) === null ) {
 896                                 $requestTime = $r->getVal( 'LanguageRequestTime' );
 897                                 if ( !$requestTime ) {
 898                                         // The most likely explanation is that the user was knocked back
 899                                         // from another page on POST due to session expiry
 900                                         $msg = 'config-session-expired';
 901                                 } elseif ( time() - $requestTime > $lifetime ) {
 902                                         $msg = 'config-session-expired';
 903                                 } else {
 904                                         $msg = 'config-no-session';
 905                                 }
 906                                 $this->parent->showError( $msg, $wgLang->formatTimePeriod( $lifetime ) );
 907                         } else {
 908                                 $languages = Language::getLanguageNames();
 909                                 if ( isset( $languages[$userLang] ) ) {
 910                                         $this->setVar( '_UserLang', $userLang );
 911                                 }
 912                                 if ( isset( $languages[$contLang] ) ) {
 913                                         $this->setVar( 'wgLanguageCode', $contLang );
 914                                         if ( $this->getVar( '_AdminName' ) === null ) {
 915                                                 // Load localised sysop username in *content* language
 916                                                 $this->setVar( '_AdminName', wfMsgForContent( 'config-admin-default-username' ) );
 917                                         }
 918                                 }
 919                                 return 'continue';
 920                         }
 921                 } elseif ( $this->parent->showSessionWarning ) {
 922                         # The user was knocked back from another page to the start
 923                         # This probably indicates a session expiry
 924                         $this->parent->showError( 'config-session-expired', $wgLang->formatTimePeriod( $lifetime ) );
 925                 }
 926
 927                 $this->parent->setSession( 'test', true );
 928
 929                 if ( !isset( $languages[$userLang] ) ) {
 930                         $userLang = $this->getVar( '_UserLang', 'en' );
 931                 }
 932                 if ( !isset( $languages[$contLang] ) ) {
 933                         $contLang = $this->getVar( 'wgLanguageCode', 'en' );
 934                 }
 935                 $this->startForm();
 936                 $s =
 937                         Xml::hidden( 'LanguageRequestTime', time() ) .
 938                         $this->getLanguageSelector( 'UserLang', 'config-your-language', $userLang ) .
 939                         $this->parent->getHelpBox( 'config-your-language-help' ) .
 940                         $this->getLanguageSelector( 'ContLang', 'config-wiki-language', $contLang ) .
 941                         $this->parent->getHelpBox( 'config-wiki-language-help' );
 942
 943
 944                 $this->addHTML( $s );
 945                 $this->endForm();
 946         }
 947
 948         /**
 949          * Get a <select> for selecting languages
 950          */
 951         function getLanguageSelector( $name, $label, $selectedCode ) {
 952                 global $wgDummyLanguageCodes;
 953                 $s = Xml::openElement( 'select', array( 'id' => $name, 'name' => $name ) ) . "\n";
 954
 955                 $languages = Language::getLanguageNames();
 956                 ksort( $languages );
 957                 $dummies = array_flip( $wgDummyLanguageCodes );
 958                 foreach ( $languages as $code => $lang ) {
 959                         if ( isset( $dummies[$code] ) ) continue;
 960                         $s .= "\n" . Xml::option( "$code - $lang", $code, $code == $selectedCode );
 961                 }
 962                 $s .= "\n</select>\n";
 963                 return $this->parent->label( $label, $name, $s );
 964         }
 965 }
 966
 967 class WebInstaller_Welcome extends WebInstallerPage {
 968         function execute() {
 969                 if ( $this->parent->request->wasPosted() ) {
 970                         if ( $this->getVar( '_Environment' ) ) {
 971                                 return 'continue';
 972                         }
 973                 }
 974                 $this->parent->output->addWikiText( wfMsgNoTrans( 'config-welcome' ) );
 975                 $status = $this->parent->doEnvironmentChecks();
 976                 if ( $status ) {
 977                         $this->parent->output->addWikiText( wfMsgNoTrans( 'config-copyright', wfMsg( 'config-authors' ) ) );
 978                         $this->startForm();
 979                         $this->endForm();
 980                 }
 981         }
 982 }
 983
 984 class WebInstaller_DBConnect extends WebInstallerPage {
 985         function execute() {
 986                 $r = $this->parent->request;
 987                 if ( $r->wasPosted() ) {
 988                         $status = $this->submit();
 989                         if ( $status->isGood() ) {
 990                                 $this->setVar( '_UpgradeDone', false );
 991                                 return 'continue';
 992                         } else {
 993                                 $this->parent->showStatusErrorBox( $status );
 994                         }
 995                 }
 996
 997
 998                 $this->startForm();
 999
1000                 $types = "<ul class=\"config-settings-block\">\n";
1001                 $settings = '';
1002                 $defaultType = $this->getVar( 'wgDBtype' );
1003                 foreach ( $this->parent->getVar( '_CompiledDBs' ) as $type ) {
1004                         $installer = $this->parent->getDBInstaller( $type );
1005                         $types .=
1006                                 '<li>' .
1007                                 Xml::radioLabel(
1008                                         $installer->getReadableName(),
1009                                         'DBType',
1010                                         $type,
1011                                         "DBType_$type",
1012                                         $type == $defaultType,
1013                                         array( 'class' => 'dbRadio', 'rel' => "DB_wrapper_$type" )
1014                                 ) .
1015                                 "</li>\n";
1016
1017                         $settings .=
1018                                 Xml::openElement( 'div', array( 'id' => 'DB_wrapper_' . $type, 'class' => 'dbWrapper' ) ) .
1019                                 Xml::element( 'h3', array(), wfMsg( 'config-header-' . $type ) ) .
1020                                 $installer->getConnectForm() .
1021                                 "</div>\n";
1022                 }
1023                 $types .= "</ul><br clear=\"left\"/>\n";
1024
1025                 $this->addHTML(
1026                         $this->parent->label( 'config-db-type', false, $types ) .
1027                         $settings
1028                 );
1029
1030                 $this->endForm();
1031         }
1032
1033         function submit() {
1034                 $r = $this->parent->request;
1035                 $type = $r->getVal( 'DBType' );
1036                 $this->setVar( 'wgDBtype', $type );
1037                 $installer = $this->parent->getDBInstaller( $type );
1038                 if ( !$installer ) {
1039                         return Status::newFatal( 'config-invalid-db-type' );
1040                 }
1041                 return $installer->submitConnectForm();
1042         }
1043 }
1044
1045 class WebInstaller_Upgrade extends WebInstallerPage {
1046         function execute() {
1047                 if ( $this->getVar( '_UpgradeDone' ) ) {
1048                         if ( $this->parent->request->wasPosted() ) {
1049                                 // Done message acknowledged
1050                                 return 'continue';
1051                         } else {
1052                                 // Back button click
1053                                 // Show the done message again
1054                                 // Make them click back again if they want to do the upgrade again
1055                                 $this->showDoneMessage();
1056                                 return 'output';
1057                         }
1058                 }
1059
1060                 // wgDBtype is generally valid here because otherwise the previous page
1061                 // (connect) wouldn't have declared its happiness
1062                 $type = $this->getVar( 'wgDBtype' );
1063                 $installer = $this->parent->getDBInstaller( $type );
1064
1065                 if ( !$installer->needsUpgrade() ) {
1066                         return 'skip';
1067                 }
1068
1069                 if ( $this->parent->request->wasPosted() ) {
1070                         $this->addHTML(
1071                                 '<div id="config-spinner" style="display:none;"><img src="../skins/common/images/ajax-loader.gif" /></div>' .
1072                                 '<script>jQuery( "#config-spinner" )[0].style.display = "block";</script>' .
1073                                 '<textarea id="config-update-log" name="UpdateLog" rows="10" readonly="readonly">'
1074                         );
1075                         $this->parent->output->flush();
1076                         $result = $installer->doUpgrade();
1077                         $this->addHTML( '</textarea>
1078 <script>jQuery( "#config-spinner" )[0].style.display = "none";</script>' );
1079                         $this->parent->output->flush();
1080                         if ( $result ) {
1081                                 $this->setVar( '_UpgradeDone', true );
1082                                 $this->showDoneMessage();
1083                                 return 'output';
1084                         }
1085                 }
1086
1087                 $this->startForm();
1088                 $this->addHTML( $this->parent->getInfoBox(
1089                         wfMsgNoTrans( 'config-can-upgrade', $GLOBALS['wgVersion'] ) ) );
1090                 $this->endForm();
1091         }
1092
1093         function showDoneMessage() {
1094                 $this->startForm();
1095                 $this->addHTML(
1096                         $this->parent->getInfoBox(
1097                                 wfMsgNoTrans( 'config-upgrade-done',
1098                                         $GLOBALS['wgServer'] .
1099                                                 $this->getVar( 'wgScriptPath' ) . '/index' .
1100                                                 $this->getVar( 'wgScriptExtension' )
1101                                 ), 'tick-32.png'
1102                         )
1103                 );
1104                 $this->endForm( 'regenerate' );
1105         }
1106 }
1107
1108 class WebInstaller_DBSettings extends WebInstallerPage {
1109         function execute() {
1110                 $installer = $this->parent->getDBInstaller( $this->getVar( 'wgDBtype' ) );
1111
1112                 $r = $this->parent->request;
1113                 if ( $r->wasPosted() ) {
1114                         $status = $installer->submitSettingsForm();
1115                         if ( $status === false ) {
1116                                 return 'skip';
1117                         } elseif ( $status->isGood() ) {
1118                                 return 'continue';
1119                         } else {
1120                                 $this->parent->showStatusErrorBox( $status );
1121                         }
1122                 }
1123
1124                 $form = $installer->getSettingsForm();
1125                 if ( $form === false ) {
1126                         return 'skip';
1127                 }
1128
1129                 $this->startForm();
1130                 $this->addHTML( $form );
1131                 $this->endForm();
1132         }
1133
1134 }
1135
1136 class WebInstaller_Name extends WebInstallerPage {
1137         function execute() {
1138                 $r = $this->parent->request;
1139                 if ( $r->wasPosted() ) {
1140                         if ( $this->submit() ) {
1141                                 return 'continue';
1142                         }
1143                 }
1144
1145                 $this->startForm();
1146
1147                 if ( $this->getVar( 'wgSitename' ) == $GLOBALS['wgSitename'] ) {
1148                         $this->setVar( 'wgSitename', '' );
1149                 }
1150
1151                 // Set wgMetaNamespace to something valid before we show the form.
1152                 // $wgMetaNamespace defaults to $wgSiteName which is 'MediaWiki'
1153                 $metaNS = $this->getVar( 'wgMetaNamespace' );
1154                 $this->setVar( 'wgMetaNamespace', wfMsgForContent( 'config-ns-other-default' ) );
1155
1156                 $this->addHTML(
1157                         $this->parent->getTextBox( array(
1158                                 'var' => 'wgSitename',
1159                                 'label' => 'config-site-name',
1160                         ) ) .
1161                         $this->parent->getHelpBox( 'config-site-name-help' ) .
1162                         $this->parent->getRadioSet( array(
1163                                 'var' => '_NamespaceType',
1164                                 'label' => 'config-project-namespace',
1165                                 'itemLabelPrefix' => 'config-ns-',
1166                                 'values' => array( 'site-name', 'generic', 'other' ),
1167                                 'commonAttribs' => array( 'class' => 'enableForOther', 'rel' => 'config_wgMetaNamespace' ),
1168                         ) ) .
1169                         $this->parent->getTextBox( array(
1170                                 'var' => 'wgMetaNamespace',
1171                                 'label' => '',
1172                                 'attribs' => array( 'disabled' => '' ),
1173                         ) ) .
1174                         $this->parent->getHelpBox( 'config-project-namespace-help' ) .
1175                         $this->parent->getFieldsetStart( 'config-admin-box' ) .
1176                         $this->parent->getTextBox( array(
1177                                 'var' => '_AdminName',
1178                                 'label' => 'config-admin-name'
1179                         ) ) .
1180                         $this->parent->getPasswordBox( array(
1181                                 'var' => '_AdminPassword',
1182                                 'label' => 'config-admin-password',
1183                         ) ) .
1184                         $this->parent->getPasswordBox( array(
1185                                 'var' => '_AdminPassword2',
1186                                 'label' => 'config-admin-password-confirm'
1187                         ) ) .
1188                         $this->parent->getHelpBox( 'config-admin-help' ) .
1189                         $this->parent->getTextBox( array(
1190                                 'var' => '_AdminEmail',
1191                                 'label' => 'config-admin-email'
1192                         ) ) .
1193                         $this->parent->getHelpBox( 'config-admin-email-help' ) .
1194                         $this->parent->getCheckBox( array(
1195                                 'var' => '_Subscribe',
1196                                 'label' => 'config-subscribe'
1197                         ) ) .
1198                         $this->parent->getHelpBox( 'config-subscribe-help' ) .
1199                         $this->parent->getFieldsetEnd() .
1200                         $this->parent->getInfoBox( wfMsg( 'config-almost-done' ) ) .
1201                         $this->parent->getRadioSet( array(
1202                                 'var' => '_SkipOptional',
1203                                 'itemLabelPrefix' => 'config-optional-',
1204                                 'values' => array( 'continue', 'skip' )
1205                         ) )
1206                 );
1207
1208                 // Restore the default value
1209                 $this->setVar( 'wgMetaNamespace', $metaNS );
1210
1211                 $this->endForm();
1212                 return 'output';
1213         }
1214
1215         function submit() {
1216                 $retVal = true;
1217                 $this->parent->setVarsFromRequest( array( 'wgSitename', '_NamespaceType',
1218                         '_AdminName', '_AdminPassword', '_AdminPassword2', '_AdminEmail',
1219                         '_Subscribe', '_SkipOptional' ) );
1220
1221                 // Validate site name
1222                 if ( strval( $this->getVar( 'wgSitename' ) ) === '' ) {
1223                         $this->parent->showError( 'config-site-name-blank' );
1224                         $retVal = false;
1225                 }
1226
1227                 // Fetch namespace
1228                 $nsType = $this->getVar( '_NamespaceType' );
1229                 if ( $nsType == 'site-name' ) {
1230                         $name = $this->getVar( 'wgSitename' );
1231                         // Sanitize for namespace
1232                         // This algorithm should match the JS one in WebInstallerOutput.php
1233                         $name = preg_replace( '/[\[\]\{\}|#<>%+? ]/', '_', $name );
1234                         $name = str_replace( '&', '&amp;', $name );
1235                         $name = preg_replace( '/__+/', '_', $name );
1236                         $name = ucfirst( trim( $name, '_' ) );
1237                 } elseif ( $nsType == 'generic' ) {
1238                         $name = wfMsg( 'config-ns-generic' );
1239                 } else { // other
1240                         $name = $this->getVar( 'wgMetaNamespace' );
1241                 }
1242
1243                 // Validate namespace
1244                 if ( strpos( $name, ':' ) !== false ) {
1245                         $good = false;
1246                 } else {
1247                         // Title-style validation
1248                         $title = Title::newFromText( $name );
1249                         if ( !$title ) {
1250                                 $good = $nsType == 'site-name' ? true : false;
1251                         } else {
1252                                 $name = $title->getDBkey();
1253                                 $good = true;
1254                         }
1255                 }
1256                 if ( !$good ) {
1257                         $this->parent->showError( 'config-ns-invalid', $name );
1258                         $retVal = false;
1259                 }
1260                 $this->setVar( 'wgMetaNamespace', $name );
1261
1262                 // Validate username for creation
1263                 $name = $this->getVar( '_AdminName' );
1264                 if ( strval( $name ) === '' ) {
1265                         $this->parent->showError( 'config-admin-name-blank' );
1266                         $cname = $name;
1267                         $retVal = false;
1268                 } else {
1269                         $cname = User::getCanonicalName( $name, 'creatable' );
1270                         if ( $cname === false ) {
1271                                 $this->parent->showError( 'config-admin-name-invalid', $name );
1272                                 $retVal = false;
1273                         } else {
1274                                 $this->setVar( '_AdminName', $cname );
1275                         }
1276                 }
1277
1278                 // Validate password
1279                 $msg = false;
1280                 $pwd = $this->getVar( '_AdminPassword' );
1281                 $user = User::newFromName( $cname );
1282                 $valid = $user->getPasswordValidity( $pwd );
1283                 if ( strval( $pwd ) === '' ) {
1284                         # $user->getPasswordValidity just checks for $wgMinimalPasswordLength.
1285                         # This message is more specific and helpful.
1286                         $msg = 'config-admin-password-blank';
1287                 } elseif ( $pwd !== $this->getVar( '_AdminPassword2' ) ) {
1288                         $msg = 'config-admin-password-mismatch';
1289                 } elseif ( $valid !== true ) {
1290                         # As of writing this will only catch the username being e.g. 'FOO' and
1291                         # the password 'foo'
1292                         $msg = $valid;
1293                 }
1294                 if ( $msg !== false ) {
1295                         $this->parent->showError( $msg );
1296                         $this->setVar( '_AdminPassword', '' );
1297                         $this->setVar( '_AdminPassword2', '' );
1298                         $retVal = false;
1299                 }
1300                 return $retVal;
1301         }
1302 }
1303
1304 class WebInstaller_Options extends WebInstallerPage {
1305         function execute() {
1306                 if ( $this->getVar( '_SkipOptional' ) == 'skip' ) {
1307                         return 'skip';
1308                 }
1309                 if ( $this->parent->request->wasPosted() ) {
1310                         if ( $this->submit() ) {
1311                                 return 'continue';
1312                         }
1313                 }
1314
1315                 $this->startForm();
1316                 $this->addHTML(
1317                         # User Rights
1318                         $this->parent->getRadioSet( array(
1319                                 'var' => '_RightsProfile',
1320                                 'label' => 'config-profile',
1321                                 'itemLabelPrefix' => 'config-profile-',
1322                                 'values' => array_keys( $this->parent->rightsProfiles ),
1323                         ) ) .
1324                         $this->parent->getHelpBox( 'config-profile-help' ) .
1325
1326                         # Licensing
1327                         $this->parent->getRadioSet( array(
1328                                 'var' => '_LicenseCode',
1329                                 'label' => 'config-license',
1330                                 'itemLabelPrefix' => 'config-license-',
1331                                 'values' => array_keys( $this->parent->licenses ),
1332                                 'commonAttribs' => array( 'class' => 'licenseRadio' ),
1333                         ) ) .
1334                         $this->getCCChooser() .
1335                         $this->parent->getHelpBox( 'config-license-help' ) .
1336
1337                         # E-mail
1338                         $this->parent->getFieldsetStart( 'config-email-settings' ) .
1339                         $this->parent->getCheckBox( array(
1340                                 'var' => 'wgEnableEmail',
1341                                 'label' => 'config-enable-email',
1342                                 'attribs' => array( 'class' => 'showHideRadio', 'rel' => 'emailwrapper' ),
1343                         ) ) .
1344                         $this->parent->getHelpBox( 'config-enable-email-help' ) .
1345                         "<div id=\"emailwrapper\">" .
1346                         $this->parent->getTextBox( array(
1347                                 'var' => 'wgPasswordSender',
1348                                 'label' => 'config-email-sender'
1349                         ) ) .
1350                         $this->parent->getHelpBox( 'config-email-sender-help' ) .
1351                         $this->parent->getCheckBox( array(
1352                                 'var' => 'wgEnableUserEmail',
1353                                 'label' => 'config-email-user',
1354                         ) ) .
1355                         $this->parent->getHelpBox( 'config-email-user-help' ) .
1356                         $this->parent->getCheckBox( array(
1357                                 'var' => 'wgEnotifUserTalk',
1358                                 'label' => 'config-email-usertalk',
1359                         ) ) .
1360                         $this->parent->getHelpBox( 'config-email-usertalk-help' ) .
1361                         $this->parent->getCheckBox( array(
1362                                 'var' => 'wgEnotifWatchlist',
1363                                 'label' => 'config-email-watchlist',
1364                         ) ) .
1365                         $this->parent->getHelpBox( 'config-email-watchlist-help' ) .
1366                         $this->parent->getCheckBox( array(
1367                                 'var' => 'wgEmailAuthentication',
1368                                 'label' => 'config-email-auth',
1369                         ) ) .
1370                         $this->parent->getHelpBox( 'config-email-auth-help' ) .
1371                         "</div>" .
1372                         $this->parent->getFieldsetEnd()
1373                 );
1374
1375                 $extensions = $this->parent->findExtensions();
1376                 if( $extensions ) {
1377                         $extHtml = $this->parent->getFieldsetStart( 'config-extensions' );
1378                         foreach( $extensions as $ext ) {
1379                                 $extHtml .= $this->parent->getCheckBox( array(
1380                                         'var' => "ext-$ext",
1381                                         'rawtext' => $ext,
1382                                 ) );
1383                         }
1384                         $extHtml .= $this->parent->getHelpBox( 'config-extensions-help' ) .
1385                                 $this->parent->getFieldsetEnd();
1386                         $this->addHTML( $extHtml );
1387                 }
1388
1389                 $this->addHTML(
1390                         # Uploading
1391                         $this->parent->getFieldsetStart( 'config-upload-settings' ) .
1392                         $this->parent->getCheckBox( array(
1393                                 'var' => 'wgEnableUploads',
1394                                 'label' => 'config-upload-enable',
1395                                 'attribs' => array( 'class' => 'showHideRadio', 'rel' => 'uploadwrapper' ),
1396                         ) ) .
1397                         $this->parent->getHelpBox( 'config-upload-help' ) .
1398                         '<div id="uploadwrapper" style="display: none;">' .
1399                         $this->parent->getTextBox( array(
1400                                 'var' => 'wgDeletedDirectory',
1401                                 'label' => 'config-upload-deleted',
1402                         ) ) .
1403                         $this->parent->getHelpBox( 'config-upload-deleted-help' ) .
1404                         $this->parent->getTextBox( array(
1405                                 'var' => 'wgLogo',
1406                                 'label' => 'config-logo'
1407                         ) ) .
1408                         $this->parent->getHelpBox( 'config-logo-help' ) .
1409                         '</div>' .
1410                         $this->parent->getFieldsetEnd()
1411                 );
1412
1413                 $caches = array( 'none', 'anything', 'db' );
1414                 $selected = 'db';
1415                 if( count( $this->getVar( '_Caches' ) ) ) {
1416                         $caches[] = 'accel';
1417                         $selected = 'accel';
1418                 }
1419                 $caches[] = 'memcached';
1420
1421                 $this->addHTML(
1422                         # Advanced settings
1423                         $this->parent->getFieldsetStart( 'config-advanced-settings' ) .
1424                         # Object cache settings
1425                         $this->parent->getRadioSet( array(
1426                                 'var' => 'wgMainCacheType',
1427                                 'label' => 'config-cache-options',
1428                                 'itemLabelPrefix' => 'config-cache-',
1429                                 'values' => $caches,
1430                                 'value' => $selected,
1431                         ) ) .
1432                         $this->parent->getHelpBox( 'config-cache-help' ) .
1433                         '<div id="config-memcachewrapper">' .
1434                         $this->parent->getTextBox( array(
1435                                 'var' => '_MemCachedServers',
1436                                 'label' => 'config-memcached-servers',
1437                         ) ) .
1438                         $this->parent->getHelpBox( 'config-memcached-help' ) . '</div>' .
1439                         $this->parent->getFieldsetEnd()
1440                 );
1441                 $this->endForm();
1442         }
1443
1444         function getCCPartnerUrl() {
1445                 global $wgServer;
1446                 $exitUrl = $wgServer . $this->parent->getUrl( array(
1447                         'page' => 'Options',
1448                         'SubmitCC' => 'indeed',
1449                         'config__LicenseCode' => 'cc',
1450                         'config_wgRightsUrl' => '[license_url]',
1451                         'config_wgRightsText' => '[license_name]',
1452                         'config_wgRightsIcon' => '[license_button]',
1453                 ) );
1454                 $styleUrl = $wgServer . dirname( dirname( $this->parent->getUrl() ) ) .
1455                         '/skins/common/config-cc.css';
1456                 $iframeUrl = 'http://creativecommons.org/license/?' .
1457                         wfArrayToCGI( array(
1458                                 'partner' => 'MediaWiki',
1459                                 'exit_url' => $exitUrl,
1460                                 'lang' => $this->getVar( '_UserLang' ),
1461                                 'stylesheet' => $styleUrl,
1462                         ) );
1463                 return $iframeUrl;
1464         }
1465
1466         function getCCChooser() {
1467                 $iframeAttribs = array(
1468                         'class' => 'config-cc-iframe',
1469                         'name' => 'config-cc-iframe',
1470                         'id' => 'config-cc-iframe',
1471                         'frameborder' => 0,
1472                         'width' => '100%',
1473                         'height' => '100%',
1474                 );
1475                 if ( $this->getVar( '_CCDone' ) ) {
1476                         $iframeAttribs['src'] = $this->parent->getUrl( array( 'ShowCC' => 'yes' ) );
1477                 } else {
1478                         $iframeAttribs['src'] = $this->getCCPartnerUrl();
1479                 }
1480
1481                 return
1482                         "<div class=\"config-cc-wrapper\" id=\"config-cc-wrapper\" style=\"display: none;\">\n" .
1483                         Xml::element( 'iframe', $iframeAttribs, '', false /* not short */ ) .
1484                         "</div>\n";
1485         }
1486
1487         function getCCDoneBox() {
1488                 $js = "parent.document.getElementById('config-cc-wrapper').style.height = '$1';";
1489                 // If you change this height, also change it in config.css
1490                 $expandJs = str_replace( '$1', '54em', $js );
1491                 $reduceJs = str_replace( '$1', '70px', $js );
1492                 return
1493                         '<p>'.
1494                         Xml::element( 'img', array( 'src' => $this->getVar( 'wgRightsIcon' ) ) ) .
1495                         '&nbsp;&nbsp;' .
1496                         htmlspecialchars( $this->getVar( 'wgRightsText' ) ) .
1497                         "</p>\n" .
1498                         "<p style=\"text-align: center\">" .
1499                         Xml::element( 'a',
1500                                 array(
1501                                         'href' => $this->getCCPartnerUrl(),
1502                                         'onclick' => $expandJs,
1503                                 ),
1504                                 wfMsg( 'config-cc-again' )
1505                         ) .
1506                         "</p>\n" .
1507                         "<script type=\"text/javascript\">\n" .
1508                         # Reduce the wrapper div height
1509                         htmlspecialchars( $reduceJs ) .
1510                         "\n" .
1511                         "</script>\n";
1512         }
1513
1514
1515         function submitCC() {
1516                 $newValues = $this->parent->setVarsFromRequest(
1517                         array( 'wgRightsUrl', 'wgRightsText', 'wgRightsIcon' ) );
1518                 if ( count( $newValues ) != 3 ) {
1519                         $this->parent->showError( 'config-cc-error' );
1520                         return;
1521                 }
1522                 $this->setVar( '_CCDone', true );
1523                 $this->addHTML( $this->getCCDoneBox() );
1524         }
1525
1526         function submit() {
1527                 $this->parent->setVarsFromRequest( array( '_RightsProfile', '_LicenseCode',
1528                         'wgEnableEmail', 'wgPasswordSender', 'wgEnableUpload', 'wgLogo',
1529                         'wgEnableUserEmail', 'wgEnotifUserTalk', 'wgEnotifWatchlist',
1530                         'wgEmailAuthentication', 'wgMainCacheType', '_MemCachedServers' ) );
1531
1532                 if ( !in_array( $this->getVar( '_RightsProfile' ),
1533                         array_keys( $this->parent->rightsProfiles ) ) )
1534                 {
1535                         reset( $this->parent->rightsProfiles );
1536                         $this->setVar( '_RightsProfile', key( $this->parent->rightsProfiles ) );
1537                 }
1538
1539                 $code = $this->getVar( '_LicenseCode' );
1540                 if ( $code == 'cc-choose' ) {
1541                         if ( !$this->getVar( '_CCDone' ) ) {
1542                                 $this->parent->showError( 'config-cc-not-chosen' );
1543                                 return false;
1544                         }
1545                 } elseif ( in_array( $code, array_keys( $this->parent->licenses ) ) ) {
1546                         $entry = $this->parent->licenses[$code];
1547                         if ( isset( $entry['text'] ) ) {
1548                                 $this->setVar( 'wgRightsText', $entry['text'] );
1549                         } else {
1550                                 $this->setVar( 'wgRightsText', wfMsg( 'config-license-' . $code ) );
1551                         }
1552                         $this->setVar( 'wgRightsUrl', $entry['url'] );
1553                         $this->setVar( 'wgRightsIcon', $entry['icon'] );
1554                 } else {
1555                         $this->setVar( 'wgRightsText', '' );
1556                         $this->setVar( 'wgRightsUrl', '' );
1557                         $this->setVar( 'wgRightsIcon', '' );
1558                 }
1559
1560                 $exts = $this->parent->getVar( '_Extensions' );
1561                 foreach( $exts as $key => $ext ) {
1562                         if( !$this->parent->request->getCheck( 'config_ext-' . $ext ) ) {
1563                                 unset( $exts[$key] );
1564                         }
1565                 }
1566                 $this->parent->setVar( '_Extensions', $exts );
1567                 return true;
1568         }
1569 }
1570
1571 class WebInstaller_Install extends WebInstallerPage {
1572
1573         function execute() {
1574                 if( $this->parent->request->wasPosted() ) {
1575                         return 'continue';
1576                 }
1577                 $this->startForm();
1578                 $this->addHTML("<ul>");
1579                 foreach( $this->parent->getInstallSteps() as $step ) {
1580                         $this->startStage( "config-install-$step" );
1581                         $func = 'install' . ucfirst( $step );
1582                         $status = $this->parent->{$func}();
1583                         $ok = $status->isGood();
1584                         if ( !$ok ) {
1585                                 $this->parent->showStatusErrorBox( $status );
1586                         }
1587                         $this->endStage( $ok );
1588                 }
1589                 $this->addHTML("</ul>");
1590                 $this->endForm();
1591                 return true;
1592
1593         }
1594
1595         private function startStage( $msg ) {
1596                 $this->addHTML( "<li>" . wfMsgHtml( $msg ) . wfMsg( 'ellipsis') );
1597         }
1598
1599         private function endStage( $success = true ) {
1600                 $msg = $success ? 'config-install-step-done' : 'config-install-step-failed';
1601                 $html = wfMsgHtml( 'word-separator' ) . wfMsgHtml( $msg );
1602                 if ( !$success ) {
1603                         $html = "<span class=\"error\">$html</span>";
1604                 }
1605                 $this->addHTML( $html . "</li>\n" );
1606         }
1607 }
1608
1609 class WebInstaller_Complete extends WebInstallerPage {
1610         public function execute() {
1611                 global $IP;
1612                 $this->startForm();
1613                 $msg = file_exists( "$IP/LocalSettings.php" ) ? 'config-install-done-moved' : 'config-install-done';
1614                 $this->addHTML(
1615                         $this->parent->getInfoBox(
1616                                 wfMsgNoTrans( $msg,
1617                                         $GLOBALS['wgServer'] .
1618                                                 $this->getVar( 'wgScriptPath' ) . '/index' .
1619                                                 $this->getVar( 'wgScriptExtension' )
1620                                 ), 'tick-32.png'
1621                         )
1622                 );
1623                 $this->endForm( false );
1624         }
1625 }
1626
1627 class WebInstaller_Restart extends WebInstallerPage {
1628         function execute() {
1629                 $r = $this->parent->request;
1630                 if ( $r->wasPosted() ) {
1631                         $really = $r->getVal( 'submit-restart' );
1632                         if ( $really ) {
1633                                 $this->parent->session = array();
1634                                 $this->parent->happyPages = array();
1635                                 $this->parent->settings = array();
1636                         }
1637                         return 'continue';
1638                 }
1639
1640                 $this->startForm();
1641                 $s = $this->parent->getWarningBox( wfMsgNoTrans( 'config-help-restart' ) );
1642                 $this->addHTML( $s );
1643                 $this->endForm( 'restart' );
1644         }
1645 }
1646
1647 abstract class WebInstaller_Document extends WebInstallerPage {
1648         abstract function getFileName();
1649
1650         function execute() {
1651                 $text = $this->getFileContents();
1652                 $this->parent->output->addWikiText( $text );
1653                 $this->startForm();
1654                 $this->endForm( false );
1655         }
1656
1657         function getFileContents() {
1658                 return file_get_contents( dirname( __FILE__ ) . '/../../' . $this->getFileName() );
1659         }
1660
1661         protected function formatTextFile( $text ) {
1662                 // replace numbering with [1], [2], etc with MW-style numbering
1663                 $text = preg_replace( "/\r?\n(\r?\n)?\\[\\d+\\]/m", "\\1#", $text );
1664                 // join word-wrapped lines into one
1665                 do {
1666                         $prev = $text;
1667                         $text = preg_replace( "/\n([\\*#])([^\r\n]*?)\r?\n([^\r\n#\\*:]+)/", "\n\\1\\2 \\3", $text );
1668                 } while ( $text != $prev );
1669                 // turn (bug nnnn) into links
1670                 $text = preg_replace_callback('/bug (\d+)/', array( $this, 'replaceBugLinks' ), $text );
1671                 // add links to manual to every global variable mentioned
1672                 $text = preg_replace_callback('/(\$wg[a-z0-9_]+)/i', array( $this, 'replaceConfigLinks' ), $text );
1673                 // special case for <pre> - formatted links
1674                 do {
1675                         $prev = $text;
1676                         $text = preg_replace( '/^([^\\s].*?)\r?\n[\\s]+(https?:\/\/)/m', "\\1\n:\\2", $text );
1677                 } while ( $text != $prev );
1678                 return $text;
1679         }
1680
1681         private function replaceBugLinks( $matches ) {
1682                 return '<span class="config-plainlink">[https://bugzilla.wikimedia.org/' .
1683                         $matches[1] . ' bug ' . $matches[1] . ']</span>';
1684         }
1685
1686         private function replaceConfigLinks( $matches ) {
1687                 return '<span class="config-plainlink">[http://www.mediawiki.org/wiki/Manual:' .
1688                         $matches[1] . ' ' . $matches[1] . ']</span>';
1689         }
1690 }
1691
1692 class WebInstaller_Readme extends WebInstaller_Document {
1693         function getFileName() { return 'README'; }
1694
1695         function getFileContents() {
1696                 return $this->formatTextFile( parent::getFileContents() );
1697         }
1698 }
1699
1700 class WebInstaller_ReleaseNotes extends WebInstaller_Document {
1701         function getFileName() { return 'RELEASE-NOTES'; }
1702
1703         function getFileContents() {
1704                 return $this->formatTextFile( parent::getFileContents() );
1705         }
1706 }
1707
1708 class WebInstaller_UpgradeDoc extends WebInstaller_Document {
1709         function getFileName() { return 'UPGRADE'; }
1710
1711         function getFileContents() {
1712                 return $this->formatTextFile( parent::getFileContents() );
1713         }
1714 }
1715
1716 class WebInstaller_Copying extends WebInstaller_Document {
1717         function getFileName() { return 'COPYING'; }
1718
1719         function getFileContents() {
1720                 $text = parent::getFileContents();
1721                 $text = str_replace( "\x0C", '', $text );
1722                 $text = preg_replace_callback( '/\n[ \t]+/m', array( 'WebInstaller_Copying', 'replaceLeadingSpaces' ), $text );
1723                 $text = '<tt>' . nl2br( $text ) . '</tt>';
1724                 return $text;
1725         }
1726
1727         private static function replaceLeadingSpaces( $matches ) {
1728                 return "\n" . str_repeat( '&nbsp;', strlen( $matches[0] ) );
1729         }
1730 }