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 require_once( 'Export.php' );
  27
  28 /**
  29  *
  30  */
  31 function wfSpecialExport( $page = '' ) {
  32         global $wgOut, $wgRequest, $wgExportAllowListContributors;
  33         global $wgExportAllowHistory, $wgExportMaxHistory;
  34
  35         $curonly = true;
  36         if( $wgRequest->getVal( 'action' ) == 'submit') {
  37                 $page = $wgRequest->getText( 'pages' );
  38                 $curonly = $wgRequest->getCheck( 'curonly' );
  39         }
  40         if( $wgRequest->getCheck( 'history' ) ) {
  41                 $curonly = false;
  42         }
  43         if( !$wgExportAllowHistory ) {
  44                 // Override
  45                 $curonly = true;
  46         }
  47
  48         $list_authors = $wgRequest->getCheck( 'listauthors' );
  49         if ( !$curonly || !$wgExportAllowListContributors ) $list_authors = false ;
  50
  51         if( $page != '' ) {
  52                 $wgOut->disable();
  53
  54                 // Cancel output buffering and gzipping if set
  55                 // This should provide safer streaming for pages with history
  56                 while( $status = ob_get_status() ) {
  57                         ob_end_clean();
  58                         if( $status['name'] == 'ob_gzhandler' ) {
  59                                 header( 'Content-Encoding:' );
  60                         }
  61                 }
  62                 header( "Content-type: application/xml; charset=utf-8" );
  63                 $pages = explode( "\n", $page );
  64
  65                 $db =& wfGetDB( DB_SLAVE );
  66                 $history = $curonly ? MW_EXPORT_CURRENT : MW_EXPORT_FULL;
  67                 $exporter = new WikiExporter( $db, $history );
  68                 $exporter->list_authors = $list_authors ;
  69                 $exporter->openStream();
  70
  71                 foreach( $pages as $page ) {
  72                         if( $wgExportMaxHistory && !$curonly ) {
  73                                 $title = Title::newFromText( $page );
  74                                 if( $title ) {
  75                                         $count = Revision::countByTitle( $db, $title );
  76                                         if( $count > $wgExportMaxHistory ) {
  77                                                 wfDebug( __FUNCTION__ .
  78                                                         ": Skipped $page, $count revisions too big\n" );
  79                                                 continue;
  80                                         }
  81                                 }
  82                         }
  83                         $exporter->pageByName( $page );
  84                 }
  85
  86                 $exporter->closeStream();
  87                 return;
  88         }
  89
  90         $wgOut->addWikiText( wfMsg( "exporttext" ) );
  91         $titleObj = Title::makeTitle( NS_SPECIAL, "Export" );
  92
  93         $form = wfOpenElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalUrl() ) );
  94         $form .= wfOpenElement( 'textarea', array( 'name' => 'pages', 'cols' => 40, 'rows' => 10 ) ) . '</textarea><br />';
  95         if( $wgExportAllowHistory ) {
  96                 $form .= wfCheck( 'curonly', true, array( 'value' => 'true', 'id' => 'curonly' ) );
  97                 $form .= wfLabel( wfMsg( 'exportcuronly' ), 'curonly' ) . '<br />';
  98         } else {
  99                 $wgOut->addWikiText( wfMsg( 'exportnohistory' ) );
 100         }
 101         $form .= wfHidden( 'action', 'submit' );
 102         $form .= wfSubmitButton( wfMsg( 'export-submit' ) ) . '</form>';
 103         $wgOut->addHtml( $form );
 104 }
 105
 106 ?>