#
# 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.
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# http://www.gnu.org/copyleft/gpl.html
/**
- *
- * @package MediaWiki
- * @subpackage SpecialPage
+ * @file
+ * @ingroup SpecialPage
*/
-/** */
-require_once( 'Revision.php' );
-require_once( 'Export.php' );
+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;
+}
+
+/**
+ * Expand a list of pages to include templates used in those pages.
+ * @param $inputPages array, list of titles to look up
+ * @param $pageSet array, associative array indexed by titles for output
+ * @return array associative array index by titles
+ */
+function wfExportGetTemplates( $inputPages, $pageSet ) {
+ return wfExportGetLinks( $inputPages, $pageSet,
+ 'templatelinks',
+ array( 'tl_namespace AS namespace', 'tl_title AS title' ),
+ array( 'page_id=tl_from' ) );
+}
+
+/**
+ * Expand a list of pages to include images used in those pages.
+ * @param $inputPages array, list of titles to look up
+ * @param $pageSet array, associative array indexed by titles for output
+ * @return array associative array index by titles
+ */
+function wfExportGetImages( $inputPages, $pageSet ) {
+ return wfExportGetLinks( $inputPages, $pageSet,
+ 'imagelinks',
+ array( NS_IMAGE . ' AS namespace', 'il_to AS title' ),
+ array( 'page_id=il_from' ) );
+}
+
+/**
+ * Expand a list of pages to include items used in those pages.
+ * @private
+ */
+function wfExportGetLinks( $inputPages, $pageSet, $table, $fields, $join ) {
+ $dbr = wfGetDB( DB_SLAVE );
+ foreach( $inputPages as $page ) {
+ $title = Title::newFromText( $page );
+ if( $title ) {
+ $pageSet[$title->getPrefixedText()] = true;
+ /// @fixme May or may not be more efficient to batch these
+ /// by namespace when given multiple input pages.
+ $result = $dbr->select(
+ array( 'page', $table ),
+ $fields,
+ array_merge( $join,
+ array(
+ 'page_namespace' => $title->getNamespace(),
+ 'page_title' => $title->getDbKey() ) ),
+ __METHOD__ );
+ foreach( $result as $row ) {
+ $template = Title::makeTitle( $row->namespace, $row->title );
+ $pageSet[$template->getPrefixedText()] = true;
+ }
+ }
+ }
+ return $pageSet;
+}
+
+/**
+ * Callback function to remove empty strings from the pages array.
+ */
+function wfFilterPage( $page ) {
+ return $page !== '' && $page !== null;
+}
/**
*
*/
function wfSpecialExport( $page = '' ) {
- global $wgOut, $wgRequest, $wgExportAllowListContributors;
- global $wgExportAllowHistory;
+ global $wgOut, $wgRequest, $wgSitename, $wgExportAllowListContributors;
+ global $wgExportAllowHistory, $wgExportMaxHistory;
- if( $wgRequest->getVal( 'action' ) == 'submit') {
+ $curonly = true;
+ $doexport = false;
+
+ if ( $wgRequest->getCheck( 'addcat' ) ) {
$page = $wgRequest->getText( 'pages' );
- if( $wgExportAllowHistory ) {
- $curonly = $wgRequest->getCheck( 'curonly' );
+ $catname = $wgRequest->getText( 'catname' );
+
+ if ( $catname !== '' && $catname !== NULL && $catname !== false ) {
+ $t = Title::makeTitleSafe( NS_CATEGORY, $catname );
+ if ( $t ) {
+ /**
+ * @fixme This can lead to hitting memory limit for very large
+ * categories. Ideally we would do the lookup synchronously
+ * during the export in a single query.
+ */
+ $catpages = wfExportGetPagesFromCategory( $t );
+ if ( $catpages ) $page .= "\n" . implode( "\n", $catpages );
+ }
+ }
+ }
+ else if( $wgRequest->wasPosted() && $page == '' ) {
+ $page = $wgRequest->getText( 'pages' );
+ $curonly = $wgRequest->getCheck( 'curonly' );
+ $rawOffset = $wgRequest->getVal( 'offset' );
+ if( $rawOffset ) {
+ $offset = wfTimestamp( TS_MW, $rawOffset );
} else {
- $curonly = true;
+ $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 {
- # Pre-check the 'current version only' box in the UI
- $curonly = true;
+ // 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( $page != '' ) {
+ 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 );
+ if( $wgRequest->getCheck( 'wpDownload' ) ) {
+ // Provide a sane filename suggestion
+ $filename = urlencode( $wgSitename . '-' . wfTimestampNow() . '.xml' );
+ $wgRequest->response()->header( "Content-disposition: attachment;filename={$filename}" );
+ }
+
+ /* Split up the input and look up linked pages */
+ $inputPages = array_filter( explode( "\n", $page ), 'wfFilterPage' );
+ $pageSet = array_flip( $inputPages );
+
+ if( $wgRequest->getCheck( 'templates' ) ) {
+ $pageSet = wfExportGetTemplates( $inputPages, $pageSet );
+ }
- $db =& wfGetDB( DB_SLAVE );
- $history = $curonly ? MW_EXPORT_CURRENT : MW_EXPORT_FULL;
+ /*
+ // Enable this when we can do something useful exporting/importing image information. :)
+ if( $wgRequest->getCheck( 'images' ) ) {
+ $pageSet = wfExportGetImages( $inputPages, $pageSet );
+ }
+ */
+
+ $pages = array_keys( $pageSet );
+
+ /* Ok, let's get to it... */
+
+ $db = wfGetDB( DB_SLAVE );
$exporter = new WikiExporter( $db, $history );
$exporter->list_authors = $list_authors ;
$exporter->openStream();
- $exporter->pagesByName( $pages );
+
+ 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->userCanRead() ) continue; #TODO: perhaps output an <error> tag or something.
+
+ $exporter->pageByTitle( $title );
+ }
+
$exporter->closeStream();
return;
}
- $wgOut->addWikiText( wfMsg( "exporttext" ) );
- $titleObj = Title::makeTitle( NS_SPECIAL, "Export" );
- $action = $titleObj->escapeLocalURL( 'action=submit' );
+ $self = SpecialPage::getTitleFor( 'Export' );
+ $wgOut->addHtml( wfMsgExt( 'exporttext', 'parse' ) );
+
+ $form = Xml::openElement( 'form', array( 'method' => 'post',
+ 'action' => $self->getLocalUrl( 'action=submit' ) ) );
+
+ $form .= Xml::inputLabel( wfMsg( 'export-addcattext' ) , 'catname', 'catname', 40 ) . ' ';
+ $form .= Xml::submitButton( wfMsg( 'export-addcat' ), array( 'name' => 'addcat' ) ) . '<br />';
+
+ $form .= Xml::openElement( 'textarea', array( 'name' => 'pages', 'cols' => 40, 'rows' => 10 ) );
+ $form .= htmlspecialchars( $page );
+ $form .= Xml::closeElement( 'textarea' );
+ $form .= '<br />';
+
if( $wgExportAllowHistory ) {
- $checkbox = "<label><input type='checkbox' name='curonly' value='true' checked='checked' />
-" . wfMsgHtml( 'exportcuronly' ) . "</label><br />";
+ $form .= Xml::checkLabel( wfMsg( 'exportcuronly' ), 'curonly', 'curonly', true ) . '<br />';
} else {
- $checkbox = "";
- $wgOut->addWikiText( wfMsg( "exportnohistory" ) );
+ $wgOut->addHtml( wfMsgExt( 'exportnohistory', 'parse' ) );
}
- $wgOut->addHTML( "
-<form method='post' action=\"$action\">
-<input type='hidden' name='action' value='submit' />
-<textarea name='pages' cols='40' rows='10'></textarea><br />
-$checkbox
-<input type='submit' />
-</form>
-" );
-}
+ $form .= Xml::checkLabel( wfMsg( 'export-templates' ), 'templates', 'wpExportTemplates', false ) . '<br />';
+ // Enable this when we can do something useful exporting/importing image information. :)
+ //$form .= Xml::checkLabel( wfMsg( 'export-images' ), 'images', 'wpExportImages', false ) . '<br />';
+ $form .= Xml::checkLabel( wfMsg( 'export-download' ), 'wpDownload', 'wpDownload', true ) . '<br />';
-?>
+ $form .= Xml::submitButton( wfMsg( 'export-submit' ) );
+ $form .= Xml::closeElement( 'form' );
+ $wgOut->addHtml( $form );
+}