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<?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
# (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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# http://www.gnu.org/copyleft/gpl.html
/**
*
* @addtogroup SpecialPage
*/
function wfExportGetPagesFromCategory( $title ) {
global $wgContLang;
$name = $title->getDBKey();
$dbr = wfGetDB( DB_SLAVE );
list( $page, $categorylinks ) = $dbr->tableNamesN( 'page', 'categorylinks' );
$sql = "SELECT page_namespace, page_title FROM $page " .
"JOIN $categorylinks ON cl_from = page_id " .
"WHERE cl_to = " . $dbr->addQuotes( $name );
$pages = array();
$res = $dbr->query( $sql, 'wfExportGetPagesFromCategory' );
while ( $row = $dbr->fetchObject( $res ) ) {
$n = $row->page_title;
if ($row->page_namespace) {
$ns = $wgContLang->getNsText( $row->page_namespace );
$n = $ns . ':' . $n;
}
$pages[] = $n;
}
$dbr->freeResult($res);
return $pages;
}
/**
*
*/
function wfSpecialExport( $page = '' ) {
global $wgOut, $wgRequest, $wgExportAllowListContributors;
global $wgExportAllowHistory, $wgExportMaxHistory;
$curonly = true;
$doexport = false;
if ( $wgRequest->getCheck( 'addcat' ) ) {
$page = $wgRequest->getText( 'pages' );
$catname = $wgRequest->getText( 'catname' );
if ( $catname !== '' && $catname !== NULL && $catname !== false ) {
$t = Title::makeTitleSafe( NS_CATEGORY, $catname );
if ( $t ) {
$catpages = wfExportGetPagesFromCategory( $t );
if ( $catpages ) $page .= "\n" . implode( "\n", $catpages );
}
}
}
else if( $wgRequest->wasPosted() ) {
$page = $wgRequest->getText( 'pages' );
$curonly = $wgRequest->getCheck( 'curonly' );
$rawOffset = $wgRequest->getVal( 'offset' );
if( $rawOffset ) {
$offset = wfTimestamp( TS_MW, $rawOffset );
} else {
$offset = null;
}
$limit = $wgRequest->getInt( 'limit' );
$dir = $wgRequest->getVal( 'dir' );
$history = array(
'dir' => 'asc',
'offset' => false,
'limit' => $wgExportMaxHistory,
);
$historyCheck = $wgRequest->getCheck( 'history' );
if ( $curonly ) {
$history = WikiExporter::CURRENT;
} elseif ( !$historyCheck ) {
if ( $limit > 0 && $limit < $wgExportMaxHistory ) {
$history['limit'] = $limit;
}
if ( !is_null( $offset ) ) {
$history['offset'] = $offset;
}
if ( strtolower( $dir ) == 'desc' ) {
$history['dir'] = 'desc';
}
}
if( $page != '' ) $doexport = true;
} else {
// Default to current-only for GET requests
$page = $wgRequest->getText( 'pages', $page );
$historyCheck = $wgRequest->getCheck( 'history' );
if( $historyCheck ) {
$history = WikiExporter::FULL;
} else {
$history = WikiExporter::CURRENT;
}
if( $page != '' ) $doexport = true;
}
if( !$wgExportAllowHistory ) {
// Override
$history = WikiExporter::CURRENT;
}
$list_authors = $wgRequest->getCheck( 'listauthors' );
if ( !$curonly || !$wgExportAllowListContributors ) $list_authors = false ;
if ( $doexport ) {
$wgOut->disable();
// Cancel output buffering and gzipping if set
// This should provide safer streaming for pages with history
wfResetOutputBuffers();
header( "Content-type: application/xml; charset=utf-8" );
$pages = explode( "\n", $page );
$db = wfGetDB( DB_SLAVE );
$exporter = new WikiExporter( $db, $history );
$exporter->list_authors = $list_authors ;
$exporter->openStream();
foreach( $pages as $page ) {
/*
if( $wgExportMaxHistory && !$curonly ) {
$title = Title::newFromText( $page );
if( $title ) {
$count = Revision::countByTitle( $db, $title );
if( $count > $wgExportMaxHistory ) {
wfDebug( __FUNCTION__ .
": Skipped $page, $count revisions too big\n" );
continue;
}
}
}*/
#Bug 8824: Only export pages the user can read
$title = Title::newFromText( $page );
if( is_null( $title ) ) continue; #TODO: perhaps output an <error> tag or something.
if( !$title->userCan( 'read' ) ) continue; #TODO: perhaps output an <error> tag or something.
$exporter->pageByTitle( $title );
}
$exporter->closeStream();
return;
}
$wgOut->addWikiText( wfMsg( "exporttext" ) );
$titleObj = SpecialPage::getTitleFor( "Export" );
$form = wfOpenElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalUrl() ) );
$form .= wfInputLabel( wfMsg( 'export-addcattext' ), 'catname', 'catname', 40 ) . ' ';
$form .= wfSubmitButton( wfMsg( 'export-addcat' ), array( 'name' => 'addcat' ) ) . '<br />';
$form .= wfOpenElement( 'textarea', array( 'name' => 'pages', 'cols' => 40, 'rows' => 10 ) ) . htmlspecialchars($page). '</textarea><br />';
if( $wgExportAllowHistory ) {
$form .= wfCheck( 'curonly', true, array( 'value' => 'true', 'id' => 'curonly' ) );
$form .= wfLabel( wfMsg( 'exportcuronly' ), 'curonly' ) . '<br />';
} else {
$wgOut->addWikiText( wfMsg( 'exportnohistory' ) );
}
$form .= wfHidden( 'action', 'submit' );
$form .= wfSubmitButton( wfMsg( 'export-submit' ) ) . '</form>';
$wgOut->addHtml( $form );
}
?>
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