includes/installer/WebInstallerLanguage.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  * @ingroup Deployment
  20  */
  21
  22 class WebInstallerLanguage extends WebInstallerPage {
  23
  24         /**
  25          * @return string|null
  26          */
  27         public function execute() {
  28                 global $wgLang;
  29                 $r = $this->parent->request;
  30                 $userLang = $r->getVal( 'uselang' );
  31                 $contLang = $r->getVal( 'ContLang' );
  32
  33                 $languages = Language::fetchLanguageNames();
  34                 $lifetime = intval( ini_get( 'session.gc_maxlifetime' ) );
  35                 if ( !$lifetime ) {
  36                         $lifetime = 1440; // PHP default
  37                 }
  38
  39                 if ( $r->wasPosted() ) {
  40                         # Do session test
  41                         if ( $this->parent->getSession( 'test' ) === null ) {
  42                                 $requestTime = $r->getVal( 'LanguageRequestTime' );
  43                                 if ( !$requestTime ) {
  44                                         // The most likely explanation is that the user was knocked back
  45                                         // from another page on POST due to session expiry
  46                                         $msg = 'config-session-expired';
  47                                 } elseif ( time() - $requestTime > $lifetime ) {
  48                                         $msg = 'config-session-expired';
  49                                 } else {
  50                                         $msg = 'config-no-session';
  51                                 }
  52                                 $this->parent->showError( $msg, $wgLang->formatTimePeriod( $lifetime ) );
  53                         } else {
  54                                 if ( isset( $languages[$userLang] ) ) {
  55                                         $this->setVar( '_UserLang', $userLang );
  56                                 }
  57                                 if ( isset( $languages[$contLang] ) ) {
  58                                         $this->setVar( 'wgLanguageCode', $contLang );
  59                                 }
  60
  61                                 return 'continue';
  62                         }
  63                 } elseif ( $this->parent->showSessionWarning ) {
  64                         # The user was knocked back from another page to the start
  65                         # This probably indicates a session expiry
  66                         $this->parent->showError( 'config-session-expired',
  67                                 $wgLang->formatTimePeriod( $lifetime ) );
  68                 }
  69
  70                 $this->parent->setSession( 'test', true );
  71
  72                 if ( !isset( $languages[$userLang] ) ) {
  73                         $userLang = $this->getVar( '_UserLang', 'en' );
  74                 }
  75                 if ( !isset( $languages[$contLang] ) ) {
  76                         $contLang = $this->getVar( 'wgLanguageCode', 'en' );
  77                 }
  78                 $this->startForm();
  79                 $s = Html::hidden( 'LanguageRequestTime', time() ) .
  80                         $this->getLanguageSelector( 'uselang', 'config-your-language', $userLang,
  81                                 $this->parent->getHelpBox( 'config-your-language-help' ) ) .
  82                         $this->getLanguageSelector( 'ContLang', 'config-wiki-language', $contLang,
  83                                 $this->parent->getHelpBox( 'config-wiki-language-help' ) );
  84                 $this->addHTML( $s );
  85                 $this->endForm( 'continue', false );
  86
  87                 return null;
  88         }
  89
  90         /**
  91          * Get a "<select>" for selecting languages.
  92          *
  93          * @param string $name
  94          * @param string $label
  95          * @param string $selectedCode
  96          * @param string $helpHtml
  97          *
  98          * @return string
  99          */
 100         public function getLanguageSelector( $name, $label, $selectedCode, $helpHtml = '' ) {
 101                 global $wgDummyLanguageCodes;
 102
 103                 $output = $helpHtml;
 104
 105                 $select = new XmlSelect( $name, $name, $selectedCode );
 106                 $select->setAttribute( 'tabindex', $this->parent->nextTabIndex() );
 107
 108                 $languages = Language::fetchLanguageNames();
 109                 ksort( $languages );
 110                 foreach ( $languages as $code => $lang ) {
 111                         if ( isset( $wgDummyLanguageCodes[$code] ) ) {
 112                                 continue;
 113                         }
 114                         $select->addOption( "$code - $lang", $code );
 115                 }
 116
 117                 $output .= $select->getHTML();
 118                 return $this->parent->label( $label, $name, $output );
 119         }
 120
 121 }