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 # 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 # http://www.gnu.org/copyleft/gpl.html
  19
  20 /**
  21  *
  22  * @package MediaWiki
  23  * @subpackage SpecialPage
  24  */
  25
  26 /**
  27  *
  28  */
  29 function wfSpecialExport( $page = '' ) {
  30         global $wgOut, $wgLang, $wgRequest;
  31
  32         if( $wgRequest->getVal( 'action' ) == 'submit') {
  33                 $page = $wgRequest->getText( 'pages' );
  34                 $curonly = $wgRequest->getCheck( 'curonly' );
  35         } else {
  36                 # Pre-check the 'current version only' box in the UI
  37                 $curonly = true;
  38         }
  39
  40         if( $page != '' ) {
  41                 header( "Content-type: application/xml; charset=utf-8" );
  42                 $pages = explode( "\n", $page );
  43                 $xml = pages2xml( $pages, $curonly );
  44                 echo $xml;
  45                 wfAbruptExit();
  46         }
  47
  48         $wgOut->addWikiText( wfMsg( "exporttext" ) );
  49         $titleObj = Title::makeTitle( NS_SPECIAL, "Export" );
  50         $action = $titleObj->escapeLocalURL();
  51         $wgOut->addHTML( "
  52 <form method='post' action=\"$action\">
  53 <input type='hidden' name='action' value='submit' />
  54 <textarea name='pages' cols='40' rows='10'></textarea><br />
  55 <label><input type='checkbox' name='curonly' value='true' checked='checked' />
  56 " . wfMsg( "exportcuronly" ) . "</label><br />
  57 <input type='submit' />
  58 </form>
  59 " );
  60 }
  61
  62 function pages2xml( $pages, $curonly = false ) {
  63         global $wgLanguageCode, $wgInputEncoding, $wgLang;
  64         $xml = "<" . "?xml version=\"1.0\" encoding=\"UTF-8\" ?" . ">\n" .
  65                 "<mediawiki version=\"0.1\" xml:lang=\"$wgLanguageCode\">\n";
  66         foreach( $pages as $page ) {
  67                 $xml .= page2xml( $page, $curonly );
  68         }
  69         $xml .= "</mediawiki>\n";
  70         if($wgInputEncoding != "utf-8")
  71                 $xml = $wgLang->iconv( $wgInputEncoding, "utf-8", $xml );
  72         return $xml;
  73 }
  74
  75 function page2xml( $page, $curonly, $full = false ) {
  76         global $wgLang;
  77         $fname = 'page2xml';
  78
  79         $title = Title::NewFromText( $page );
  80         if( !$title ) return "";
  81
  82         $dbr =& wfGetDB( DB_SLAVE );
  83         $s = $dbr->selectRow( 'cur', array( 'cur_id as id','cur_timestamp as timestamp','cur_user as user',
  84                 'cur_user_text as user_text', 'cur_restrictions as restrictions','cur_comment as comment',
  85                 'cur_text as text' ), $title->curCond(), $fname );
  86         if( $s !== false ) {
  87                 $tl = xmlsafe( $title->getPrefixedText() );
  88                 $xml = "  <page>\n";
  89                 $xml .= "    <title>$tl</title>\n";
  90                 if( $full ) {
  91                         $xml .= "    <id>$s->id</id>\n";
  92                 }
  93                 if( $s->restrictions ) {
  94                         $xml .= "    <restrictions>$s->restrictions</restrictions>\n";
  95                 }
  96                 if( !$curonly ) {
  97                         $res = $dbr->select( 'old', array( 'old_id as id','old_timestamp as timestamp',
  98                                 'old_user as user', 'old_user_text as user_text', 'old_comment as comment',
  99                                 'old_text as text', 'old_flags as flags' ), $title->oldCond(),
 100                                 $fname, array( 'ORDER BY' => 'old_timestamp' )
 101                         );
 102
 103                         while( $s2 = $dbr->fetchObject( $res ) ) {
 104                                 $xml .= revision2xml( $s2, $full, false );
 105                         }
 106                 }
 107                 $xml .= revision2xml( $s, $full, true );
 108                 $xml .= "  </page>\n";
 109                 return $xml;
 110         } else {
 111                 return "";
 112         }
 113 }
 114
 115 function revision2xml( $s, $full, $cur ) {
 116         $ts = wfTimestamp2ISO8601( $s->timestamp );
 117         $xml = "    <revision>\n";
 118         if($full && !$cur)
 119                 $xml .= "    <id>$s->id</id>\n";
 120         $xml .= "      <timestamp>$ts</timestamp>\n";
 121         if($s->user) {
 122                 $u = "<username>" . xmlsafe( $s->user_text ) . "</username>";
 123                 if($full)
 124                         $u .= "<id>$s->user</id>";
 125         } else {
 126                 $u = "<ip>" . xmlsafe( $s->user_text ) . "</ip>";
 127         }
 128         $xml .= "      <contributor>$u</contributor>\n";
 129         if( !empty( $s->minor ) ) {
 130                 $xml .= "      <minor/>\n";
 131         }
 132         if($s->comment != "") {
 133                 $c = xmlsafe( $s->comment );
 134                 $xml .= "      <comment>$c</comment>\n";
 135         }
 136         $t = xmlsafe( Article::getRevisionText( $s, "" ) );
 137         $xml .= "      <text>$t</text>\n";
 138         $xml .= "    </revision>\n";
 139         return $xml;
 140 }
 141
 142 function wfTimestamp2ISO8601( $ts ) {
 143         #2003-08-05T18:30:02Z
 144         return preg_replace( '/^(....)(..)(..)(..)(..)(..)$/', '$1-$2-$3T$4:$5:$6Z', $ts );
 145 }
 146
 147 function xmlsafe( $string ) {
 148         # May contain old data which has not been properly normalized.
 149         global $wgUseLatin1;
 150         if( $wgUseLatin1 ) {
 151                 $string = preg_replace( '/[\x00-\x08\x0b-\x1f]/', '', $string );
 152         } else {
 153                 $string = UtfNormal::cleanUp( $string );
 154         }
 155         return htmlspecialchars( $string );
 156 }
 157
 158 ?>