includes/SpecialExport.php

   1 <?php
   2 # Copyright (C) 2003 Brion Vibber <brion@pobox.com>
   3 # http://www.mediawiki.org/
   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  *
  21  * @package MediaWiki
  22  * @subpackage SpecialPage
  23  */
  24
  25 /**
  26  *
  27  */
  28 function wfSpecialExport( $page = '' ) {
  29         global $wgOut, $wgRequest, $wgExportAllowListContributors;
  30         global $wgExportAllowHistory, $wgExportMaxHistory;
  31
  32         $curonly = true;
  33         $fullHistory = array(
  34                 'dir' => 'asc',
  35                 'offset' => false,
  36                 'limit' => $wgExportMaxHistory,
  37         );
  38         if( $wgRequest->wasPosted() ) {
  39                 $page = $wgRequest->getText( 'pages' );
  40                 $curonly = $wgRequest->getCheck( 'curonly' );
  41                 $rawOffset = $wgRequest->getVal( 'offset' );
  42                 if( $rawOffset ) {
  43                         $offset = wfTimestamp( TS_MW, $rawOffset );
  44                 } else {
  45                         $offset = null;
  46                 }
  47                 $limit = $wgRequest->getInt( 'limit' );
  48                 $dir = $wgRequest->getVal( 'dir' );
  49                 $history = array(
  50                         'dir' => 'asc',
  51                         'offset' => false,
  52                         'limit' => $wgExportMaxHistory,
  53                 );
  54                 $historyCheck = $wgRequest->getCheck( 'history' );
  55                 if ( $curonly ) {
  56                         $history = WikiExporter::CURRENT;
  57                 } elseif ( !$historyCheck ) {
  58                         if ( $limit > 0 && $limit < $wgExportMaxHistory ) {
  59                                 $history['limit'] = $limit;
  60                         }
  61                         if ( !is_null( $offset ) ) {
  62                                 $history['offset'] = $offset;
  63                         }
  64                         if ( strtolower( $dir ) == 'desc' ) {
  65                                 $history['dir'] = 'desc';
  66                         }
  67                 }
  68         } else {
  69                 // Default to current-only for GET requests
  70                 $page = $wgRequest->getText( 'pages', $page );
  71                 $historyCheck = $wgRequest->getCheck( 'history' );
  72                 if( $historyCheck ) {
  73                         $history = WikiExporter::FULL;
  74                 } else {
  75                         $history = WikiExporter::CURRENT;
  76                 }
  77         }
  78         if( !$wgExportAllowHistory ) {
  79                 // Override
  80                 $history = WikiExporter::CURRENT;
  81         }
  82
  83         $list_authors = $wgRequest->getCheck( 'listauthors' );
  84         if ( !$curonly || !$wgExportAllowListContributors ) $list_authors = false ;
  85
  86         if( $page != '' ) {
  87                 $wgOut->disable();
  88
  89                 // Cancel output buffering and gzipping if set
  90                 // This should provide safer streaming for pages with history
  91                 while( $status = ob_get_status() ) {
  92                         ob_end_clean();
  93                         if( $status['name'] == 'ob_gzhandler' ) {
  94                                 header( 'Content-Encoding:' );
  95                         }
  96                 }
  97                 header( "Content-type: application/xml; charset=utf-8" );
  98                 $pages = explode( "\n", $page );
  99
 100                 $db =& wfGetDB( DB_SLAVE );
 101                 $exporter = new WikiExporter( $db, $history );
 102                 $exporter->list_authors = $list_authors ;
 103                 $exporter->openStream();
 104
 105                 foreach( $pages as $page ) {
 106                         /*
 107                         if( $wgExportMaxHistory && !$curonly ) {
 108                                 $title = Title::newFromText( $page );
 109                                 if( $title ) {
 110                                         $count = Revision::countByTitle( $db, $title );
 111                                         if( $count > $wgExportMaxHistory ) {
 112                                                 wfDebug( __FUNCTION__ .
 113                                                         ": Skipped $page, $count revisions too big\n" );
 114                                                 continue;
 115                                         }
 116                                 }
 117                         }*/
 118                         $exporter->pageByName( $page );
 119                 }
 120
 121                 $exporter->closeStream();
 122                 return;
 123         }
 124
 125         $wgOut->addWikiText( wfMsg( "exporttext" ) );
 126         $titleObj = SpecialPage::getTitleFor( "Export" );
 127
 128         $form = wfOpenElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalUrl() ) );
 129         $form .= wfOpenElement( 'textarea', array( 'name' => 'pages', 'cols' => 40, 'rows' => 10 ) ) . '</textarea><br />';
 130         if( $wgExportAllowHistory ) {
 131                 $form .= wfCheck( 'curonly', true, array( 'value' => 'true', 'id' => 'curonly' ) );
 132                 $form .= wfLabel( wfMsg( 'exportcuronly' ), 'curonly' ) . '<br />';
 133         } else {
 134                 $wgOut->addWikiText( wfMsg( 'exportnohistory' ) );
 135         }
 136         $form .= wfHidden( 'action', 'submit' );
 137         $form .= wfSubmitButton( wfMsg( 'export-submit' ) ) . '</form>';
 138         $wgOut->addHtml( $form );
 139 }
 140
 141 ?>