Refactored parser output handling slightly, and added a hook function, to allow exten...

[lhc/web/wiklou.git] / includes / SpecialExport.php

diff --git a/includes/SpecialExport.php b/includes/SpecialExport.php
index f1b4662..a402b65 100644 (file)
--- a/includes/SpecialExport.php
+++ b/includes/SpecialExport.php
@@ -14,7 +14,7 @@
 #
 # 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
 /**
  *
@@ -23,60 +23,122 @@
  */
 
 /** */
-require_once( 'Revision.php' );
 require_once( 'Export.php' );
 
 /**
  *
  */
 function wfSpecialExport( $page = '' ) {
-       global $wgOut, $wgRequest;
-       global $wgExportAllowHistory;
-       
-       if( $wgRequest->getVal( 'action' ) == 'submit') {
+       global $wgOut, $wgRequest, $wgExportAllowListContributors;
+       global $wgExportAllowHistory, $wgExportMaxHistory;
+       $maxLimit = 200;
+
+       $curonly = true;
+       $fullHistory = array(
+               'dir' => 'asc',
+               'offset' => false,
+               'limit' => $maxLimit,
+       );
+       if( $wgRequest->wasPosted() ) {
                $page = $wgRequest->getText( 'pages' );
-               if( $wgExportAllowHistory ) {
-                       $curonly = $wgRequest->getCheck( 'curonly' );
+               $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' => $maxLimit,
+               );
+               $historyCheck = $wgRequest->getCheck( 'history' );
+               if ( $curonly ) {
+                       $history = MW_EXPORT_CURRENT;
+               } elseif ( !$historyCheck ) {
+                       if ( $limit > 0 && $limit < $maxLimit ) {
+                               $history['limit'] = $limit;
+                       }
+                       if ( !is_null( $offset ) ) {
+                               $history['offset'] = $offset;
+                       }
+                       if ( strtolower( $dir ) == 'desc' ) {
+                               $history['dir'] = 'desc';
+                       }
                }
        } 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 = MW_EXPORT_FULL;
+               } else {
+                       $history = MW_EXPORT_CURRENT;
+               }
+       }
+       if( !$wgExportAllowHistory ) {
+               // Override
+               $history = MW_EXPORT_CURRENT;
        }
        
+       $list_authors = $wgRequest->getCheck( 'listauthors' );
+       if ( !$curonly || !$wgExportAllowListContributors ) $list_authors = false ;
+
        if( $page != '' ) {
                $wgOut->disable();
+               
+               // Cancel output buffering and gzipping if set
+               // This should provide safer streaming for pages with history
+               while( $status = ob_get_status() ) {
+                       ob_end_clean();
+                       if( $status['name'] == 'ob_gzhandler' ) {
+                               header( 'Content-Encoding:' );
+                       }
+               }
                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->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;
+                                       }
+                               }
+                       }
+                       $exporter->pageByName( $page );
+               }
+               
                $exporter->closeStream();
                return;
        }
-       
+
        $wgOut->addWikiText( wfMsg( "exporttext" ) );
        $titleObj = Title::makeTitle( NS_SPECIAL, "Export" );
-       $action = $titleObj->escapeLocalURL( 'action=submit' );
+       
+       $form = wfOpenElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalUrl() ) );
+       $form .= wfOpenElement( 'textarea', array( 'name' => 'pages', 'cols' => 40, 'rows' => 10 ) ) . '</textarea><br />';
        if( $wgExportAllowHistory ) {
-               $checkbox = "<label><input type='checkbox' name='curonly' value='true' checked='checked' />
-" . wfMsgHtml( 'exportcuronly' ) . "</label><br />";
+               $form .= wfCheck( 'curonly', true, array( 'value' => 'true', 'id' => 'curonly' ) );
+               $form .= wfLabel( wfMsg( 'exportcuronly' ), 'curonly' ) . '<br />';
        } else {
-               $checkbox = "";
-               $wgOut->addWikiText( wfMsg( "exportnohistory" ) );
+               $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 />
-$checkbox
-<input type='submit' />
-</form>
-" );
+       $form .= wfHidden( 'action', 'submit' );
+       $form .= wfSubmitButton( wfMsg( 'export-submit' ) ) . '</form>';
+       $wgOut->addHtml( $form );
 }
 
 ?>