<?php
# Copyright (C) 2003 Brion Vibber <brion@pobox.com>
# http://www.mediawiki.org/
-#
+#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
-#
+#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
-#
+#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
/** */
require_once( 'Revision.php' );
+require_once( 'Export.php' );
/**
*
*/
function wfSpecialExport( $page = '' ) {
- global $wgOut, $wgLang, $wgRequest;
-
+ global $wgOut, $wgRequest;
+ global $wgExportAllowHistory;
+
if( $wgRequest->getVal( 'action' ) == 'submit') {
$page = $wgRequest->getText( 'pages' );
- $curonly = $wgRequest->getCheck( 'curonly' );
+ if( $wgExportAllowHistory ) {
+ $curonly = $wgRequest->getCheck( 'curonly' );
+ } else {
+ $curonly = true;
+ }
} else {
# Pre-check the 'current version only' box in the UI
$curonly = true;
}
-
+
if( $page != '' ) {
$wgOut->disable();
header( "Content-type: application/xml; charset=utf-8" );
$pages = explode( "\n", $page );
-
+
$db =& wfGetDB( DB_SLAVE );
$history = $curonly ? MW_EXPORT_CURRENT : MW_EXPORT_FULL;
$exporter = new WikiExporter( $db, $history );
$exporter->closeStream();
return;
}
-
+
$wgOut->addWikiText( wfMsg( "exporttext" ) );
$titleObj = Title::makeTitle( NS_SPECIAL, "Export" );
$action = $titleObj->escapeLocalURL( 'action=submit' );
+ if( $wgExportAllowHistory ) {
+ $checkbox = "<label><input type='checkbox' name='curonly' value='true' checked='checked' />
+" . wfMsgHtml( 'exportcuronly' ) . "</label><br />";
+ } else {
+ $checkbox = "";
+ $wgOut->addWikiText( wfMsg( "exportnohistory" ) );
+ }
$wgOut->addHTML( "
<form method='post' action=\"$action\">
<input type='hidden' name='action' value='submit' />
<textarea name='pages' cols='40' rows='10'></textarea><br />
-<label><input type='checkbox' name='curonly' value='true' checked='checked' />
-" . wfMsg( "exportcuronly" ) . "</label><br />
+$checkbox
<input type='submit' />
</form>
" );
}
-define( 'MW_EXPORT_FULL', 0 );
-define( 'MW_EXPORT_CURRENT', 1 );
-
-define( 'MW_EXPORT_BUFFER', 0 );
-define( 'MW_EXPORT_STREAM', 1 );
-
-/**
- * @package MediaWiki
- * @subpackage SpecialPage
- */
-class WikiExporter {
- var $pageCallback = null;
- var $revCallback = null;
-
- /**
- * If using MW_EXPORT_STREAM to stream a large amount of data,
- * provide a database connection which is not managed by
- * LoadBalancer to read from: some history blob types will
- * make additional queries to pull source data while the
- * main query is still running.
- *
- * @param Database $db
- * @param int $history one of MW_EXPORT_FULL or MW_EXPORT_CURRENT
- * @param int $buffer one of MW_EXPORT_BUFFER or MW_EXPORT_STREAM
- */
- function WikiExporter( &$db, $history = MW_EXPORT_CURRENT,
- $buffer = MW_EXPORT_BUFFER ) {
- $this->db =& $db;
- $this->history = $history;
- $this->buffer = $buffer;
- }
-
- /**
- * Set a callback to be called after each page in the output
- * stream is closed. The callback will be passed a database row
- * object with the last revision output.
- *
- * A set callback can be removed by passing null here.
- *
- * @param mixed $callback
- */
- function setPageCallback( $callback ) {
- $this->pageCallback = $callback;
- }
-
- /**
- * Set a callback to be called after each revision in the output
- * stream is closed. The callback will be passed a database row
- * object with the revision data.
- *
- * A set callback can be removed by passing null here.
- *
- * @param mixed $callback
- */
- function setRevCallback( $callback ) {
- $this->revCallback = $callback;
- }
-
- /**
- * Opens the XML output stream's root <mediawiki> element.
- * This does not include an xml directive, so is safe to include
- * as a subelement in a larger XML stream. Namespace and XML Schema
- * references are included.
- *
- * To capture the stream to a string, use PHP's output buffering
- * functions. Output will be encoded in UTF-8.
- */
- function openStream() {
- global $wgContLanguageCode;
- print wfElement( 'mediawiki', array(
- 'xmlns' => 'http://www.mediawiki.org/xml/export-0.1/',
- 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance',
- 'xsi:schemaLocation' => 'http://www.mediawiki.org/xml/export-0.1/ ' .
- 'http://www.mediawiki.org/xml/export-0.1.xsd',
- 'version' => '0.1',
- 'xml:lang' => $wgContLanguageCode ),
- null ) . "\n";
- }
-
- /**
- * Closes the output stream with the closing root element.
- * Call when finished dumping things.
- */
- function closeStream() {
- print "</mediawiki>\n";
- }
-
- /**
- * Dumps a series of page and revision records for all pages
- * in the database, either including complete history or only
- * the most recent version.
- *
- *
- * @param Database $db
- */
- function allPages() {
- return $this->dumpFrom( '' );
- }
-
- /**
- * @param Title $title
- */
- function pageByTitle( $title ) {
- return $this->dumpFrom(
- 'page_namespace=' . $title->getNamespace() .
- ' AND page_title=' . $this->db->addQuotes( $title->getDbKey() ) );
- }
-
- function pageByName( $name ) {
- $title = Title::newFromText( $name );
- if( is_null( $title ) ) {
- return WikiError( "Can't export invalid title" );
- } else {
- return $this->pageByTitle( $title );
- }
- }
-
- function pagesByName( $names ) {
- foreach( $names as $name ) {
- $this->pageByName( $name );
- }
- }
-
-
- // -------------------- private implementation below --------------------
-
- function dumpFrom( $cond = '' ) {
- $fname = 'WikiExporter::dumpFrom';
- wfProfileIn( $fname );
-
- $page = $this->db->tableName( 'page' );
- $revision = $this->db->tableName( 'revision' );
- $text = $this->db->tableName( 'text' );
-
- if( $this->history == MW_EXPORT_FULL ) {
- $join = 'page_id=rev_page';
- } elseif( $this->history == MW_EXPORT_CURRENT ) {
- $join = 'page_id=rev_page AND page_latest=rev_id';
- } else {
- wfProfileOut( $fname );
- return new WikiError( "$fname given invalid history dump type." );
- }
- $where = ( $cond == '' ) ? '' : "$cond AND";
-
- if( $this->buffer == MW_EXPORT_STREAM ) {
- $prev = $this->db->bufferResults( false );
- }
- $result = $this->db->query(
- "SELECT * FROM
- $page FORCE INDEX (PRIMARY),
- $revision FORCE INDEX(page_timestamp),
- $text
- WHERE $where $join AND rev_text_id=old_id
- ORDER BY page_id", $fname );
- $wrapper = $this->db->resultObject( $result );
- $this->outputStream( $wrapper );
-
- if( $this->buffer == MW_EXPORT_STREAM ) {
- $this->db->bufferResults( $prev );
- }
-
- wfProfileOut( $fname );
- }
-
- /**
- * Runs through a query result set dumping page and revision records.
- * The result set should be sorted/grouped by page to avoid duplicate
- * page records in the output.
- *
- * The result set will be freed once complete. Should be safe for
- * streaming (non-buffered) queries, as long as it was made on a
- * separate database connection not managed by LoadBalancer; some
- * blob storage types will make queries to pull source data.
- *
- * @param ResultWrapper $resultset
- * @access private
- */
- function outputStream( $resultset ) {
- $last = null;
- while( $row = $resultset->fetchObject() ) {
- if( is_null( $last ) ||
- $last->page_namespace != $row->page_namespace ||
- $last->page_title != $row->page_title ) {
- if( isset( $last ) ) {
- $this->closePage( $last );
- }
- $this->openPage( $row );
- $last = $row;
- }
- $this->dumpRev( $row );
- }
- if( isset( $last ) ) {
- $this->closePage( $last );
- }
- $resultset->free();
- }
-
- /**
- * Opens a <page> section on the output stream, with data
- * from the given database row.
- *
- * @param object $row
- * @access private
- */
- function openPage( $row ) {
- print "<page>\n";
- $title = Title::makeTitle( $row->page_namespace, $row->page_title );
- print ' ' . wfElementClean( 'title', array(), $title->getPrefixedText() ) . "\n";
- print ' ' . wfElement( 'id', array(), $row->page_id ) . "\n";
- if( '' != $row->page_restrictions ) {
- print ' ' . wfElement( 'restrictions', array(),
- $row->page_restrictions ) . "\n";
- }
- }
-
- /**
- * Closes a <page> section on the output stream.
- * If a per-page callback has been set, it will be called
- * and passed the last database row used for this page.
- *
- * @param object $row
- * @access private
- */
- function closePage( $row ) {
- print "</page>\n";
- if( isset( $this->pageCallback ) ) {
- call_user_func( $this->pageCallback, $row );
- }
- }
-
- /**
- * Dumps a <revision> section on the output stream, with
- * data filled in from the given database row.
- *
- * @param object $row
- * @access private
- */
- function dumpRev( $row ) {
- $fname = 'WikiExporter::dumpRev';
- wfProfileIn( $fname );
-
- print " <revision>\n";
- print " " . wfElement( 'id', null, $row->rev_id ) . "\n";
-
- $ts = wfTimestamp2ISO8601( $row->rev_timestamp );
- print " " . wfElement( 'timestamp', null, $ts ) . "\n";
-
- print " <contributor>";
- if( $row->rev_user ) {
- print wfElementClean( 'username', null, $row->rev_user_text );
- print wfElement( 'id', null, $row->rev_user );
- } else {
- print wfElementClean( 'ip', null, $row->rev_user_text );
- }
- print "</contributor>\n";
-
- if( $row->rev_minor_edit ) {
- print " <minor/>\n";
- }
- if( $row->rev_comment != '' ) {
- print " " . wfElementClean( 'comment', null, $row->rev_comment ) . "\n";
- }
-
- $text = Revision::getRevisionText( $row );
- print " " . wfElementClean( 'text', array(), $text ) . "\n";
- print " </revision>\n";
-
- wfProfileOut( $fname );
-
- if( isset( $this->revCallback ) ) {
- call_user_func( $this->revCallback, $row );
- }
- }
-
-}
-
-function wfTimestamp2ISO8601( $ts ) {
- #2003-08-05T18:30:02Z
- return preg_replace( '/^(....)(..)(..)(..)(..)(..)$/', '$1-$2-$3T$4:$5:$6Z', $ts );
-}
-
-function xmlsafe( $string ) {
- $fname = 'xmlsafe';
- wfProfileIn( $fname );
-
- /**
- * The page may contain old data which has not been properly normalized.
- * Invalid UTF-8 sequences or forbidden control characters will make our
- * XML output invalid, so be sure to strip them out.
- */
- $string = UtfNormal::cleanUp( $string );
-
- $string = htmlspecialchars( $string );
- wfProfileOut( $fname );
- return $string;
-}
-
?>