| Index: trunk/extensions/SwiftMedia/wmf/swift.php |
| — | — | @@ -0,0 +1,80 @@ |
| | 2 | +<?php |
| | 3 | +/** |
| | 4 | + * Helper functions for Swift related image thumbnail purging. |
| | 5 | + * The functions here should only be called after MediaWiki setup. |
| | 6 | + * |
| | 7 | + * $wmfSwiftConfig must reside in PrivateSettings.php. It should also |
| | 8 | + * be extracted in CommonSettings.php to set any swift backend settings. |
| | 9 | + * |
| | 10 | + * This file belongs under wmf-config/ and should be included by CommonSettings.php. |
| | 11 | + */ |
| | 12 | + |
| | 13 | +# Swift API client module and helper functions |
| | 14 | +require_once( '/usr/local/apache/common-local/lib/cloudfiles/php-cloudfiles/cloudfiles.php' ); |
| | 15 | + |
| | 16 | +/** |
| | 17 | + * Handler for the LocalFilePurgeThumbnails hook. |
| | 18 | + * To avoid excess inclusion of cloudfiles.php, a hook handler can be added |
| | 19 | + * to CommonSettings.php which includes this file and calls this function. |
| | 20 | + * |
| | 21 | + * @param $file File |
| | 22 | + * @param $type string "current" or "old" |
| | 23 | + * @return true |
| | 24 | + */ |
| | 25 | +function wmfPurgeBackendThumbCache( File $file, $type ) { |
| | 26 | + global $site, $lang; // CommonSettings.php |
| | 27 | + |
| | 28 | + if ( $type === 'current' ) { |
| | 29 | + $thumbRel = $file->getRel(); |
| | 30 | + } elseif ( $type === 'archive' ) { |
| | 31 | + $thumbRel = $file->getArchiveThumbRel(); |
| | 32 | + } else { |
| | 33 | + return true; // sanity |
| | 34 | + } |
| | 35 | + |
| | 36 | + $container = wmfGetSwiftThumbContainer( $site, $lang ); |
| | 37 | + if ( $container ) { // sanity |
| | 38 | + $files = $container->list_objects( 0, NULL, "$thumbRel/" ); |
| | 39 | + foreach ( $files as $file ) { |
| | 40 | + $name = "{$thumbRel}/{$file}"; // swift object name |
| | 41 | + try { |
| | 42 | + $container->delete_object( $name ); |
| | 43 | + } catch ( NoSuchObjectException $e ) { // probably a race condition |
| | 44 | + wfDebugLog( 'swiftThumb', "Could not delete `{$name}`; object does not exist." ); |
| | 45 | + } |
| | 46 | + } |
| | 47 | + } |
| | 48 | + |
| | 49 | + return true; |
| | 50 | +} |
| | 51 | + |
| | 52 | +/** |
| | 53 | + * Get the Swift thumbnail container for this wiki. |
| | 54 | + * |
| | 55 | + * @param $site string |
| | 56 | + * @param $lang string |
| | 57 | + * @return CF_Container|null |
| | 58 | + */ |
| | 59 | +function wmfGetSwiftThumbContainer( $site, $lang ) { |
| | 60 | + global $wmfSwiftConfig; // PrivateSettings.php |
| | 61 | + |
| | 62 | + $auth = new CF_Authentication( |
| | 63 | + $wmfSwiftConfig['user'], |
| | 64 | + $wmfSwiftConfig['key'], |
| | 65 | + NULL, |
| | 66 | + $wmfSwiftConfig['authUrl'] |
| | 67 | + ); |
| | 68 | + $auth->authenticate(); |
| | 69 | + |
| | 70 | + $conn = new CF_Connection( $auth ); |
| | 71 | + |
| | 72 | + $name = "{$site}-{$lang}-images-thumb"; // swift container name |
| | 73 | + try { |
| | 74 | + $container = $conn->get_container( $name ); |
| | 75 | + } catch ( NoSuchContainerException $e ) { // container not created yet |
| | 76 | + $container = null; |
| | 77 | + wfDebugLog( 'swiftThumb', "Could not access `{$name}`; container does not exist." ); |
| | 78 | + } |
| | 79 | + |
| | 80 | + return $container; |
| | 81 | +} |
| Property changes on: trunk/extensions/SwiftMedia/wmf/swift.php |
| ___________________________________________________________________ |
| Added: svn:eol-style |
| 1 | 82 | + native |