Added a script to populate file HTTP headers for existing files.

Change-Id: I17a0e3d0e84fea1638afe18f2ee3d36ea6be831a

diff --git a/maintenance/refreshFileHeaders.php b/maintenance/refreshFileHeaders.php
new file mode 100644 (file)
index 0000000..74f0f35
--- /dev/null
+++ b/maintenance/refreshFileHeaders.php
@@ -0,0 +1,93 @@
+<?php
+/**
+ * Refresh file headers from metadata.
+ *
+ * Usage: php refreshFileHeaders.php
+ *
+ * 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
+ *
+ * @file
+ * @author Aaron Schulz
+ * @ingroup Maintenance
+ */
+
+require_once( __DIR__ . '/Maintenance.php' );
+
+/**
+ * Maintenance script to refresh file headers from metadata
+ *
+ * @ingroup Maintenance
+ */
+class RefreshFileHeaders extends Maintenance {
+       function __construct() {
+               parent::__construct();
+               $this->mDescription = 'Script to update file HTTP headers';
+               $this->addOption( 'verbose', 'Output information about each file.', false, false, 'v' );
+               $this->addOption( 'start', 'Name of file to start with', false, true );
+               $this->addOption( 'end', 'Name of file to end with', false, true );
+               $this->setBatchSize( 200 );
+       }
+
+       public function execute() {
+               $repo = RepoGroup::singleton()->getLocalRepo();
+               $start = str_replace( ' ', '_', $this->getOption( 'start', '' ) ); // page on img_name
+               $end = str_replace( ' ', '_', $this->getOption( 'end', '' ) ); // page on img_name
+
+               $count = 0;
+               $dbr = wfGetDB( DB_SLAVE );
+               do {
+                       $conds = array( "img_name > {$dbr->addQuotes( $start )}" );
+                       if ( strlen( $end ) ) {
+                               $conds[] = "img_name <= {$dbr->addQuotes( $end )}";
+                       }
+                       $res = $dbr->select( 'image', '*', $conds,
+                               __METHOD__, array( 'LIMIT' => $this->mBatchSize, 'ORDER BY' => 'img_name ASC' ) );
+                       foreach ( $res as $row ) {
+                               $file = $repo->newFileFromRow( $row );
+                               $headers = $file->getStreamHeaders();
+                               if ( count( $headers ) ) {
+                                       $this->updateFileHeaders( $file, $headers );
+                               }
+                               // Do all of the older file versions...
+                               foreach ( $file->getHistory() as $oldFile ) {
+                                       $headers = $oldFile->getStreamHeaders();
+                                       if ( count( $headers ) ) {
+                                               $this->updateFileHeaders( $oldFile, $headers );
+                                       }
+                               }
+                               if ( $this->hasOption( 'verbose' ) ) {
+                                       $this->output( "Updated headers for file '{$row->img_name}'.\n" );
+                               }
+                               ++$count;
+                               $start = $row->img_name; // advance
+                       }
+               } while ( $res->numRows() > 0 );
+
+               $this->output( "Done. Updated headers for $count file(s).\n" );
+       }
+
+       protected function updateFileHeaders( File $file, array $headers ) {
+               $status = $file->getRepo()->getBackend()->describe( array(
+                       'src' => $file->getPath(), 'headers' => $headers
+               ) );
+               if ( !$status->isGood() ) {
+                       $this->error( "Encountered error: " . print_r( $status, true ) );
+               }
+       }
+}
+
+$maintClass = 'RefreshFileHeaders';
+require_once( RUN_MAINTENANCE_IF_MAIN );