400 ) ); } $cached = wp_cache_get( $slug, self::CACHE_GROUP ); if ( false !== $cached ) { return $cached; } $meta_file = self::find_latest_meta( $slug ); if ( is_wp_error( $meta_file ) ) { return $meta_file; } $raw = file_get_contents( $meta_file ); if ( false === $raw ) { return new WP_Error( 'read_failed', 'Could not read manifest file', array( 'status' => 500 ) ); } $meta = json_decode( $raw, true ); if ( ! is_array( $meta ) ) { return new WP_Error( 'invalid_manifest', 'Manifest file is not valid JSON', array( 'status' => 500 ) ); } wp_cache_set( $slug, $meta, self::CACHE_GROUP, self::CACHE_TTL ); return $meta; } /** * Find the highest-version .meta.json file for a slug. * * File naming convention: bw--.meta.json */ private static function find_latest_meta( $slug ) { $dir = BW_UPDATE_SERVER_UPDATES_DIR; if ( ! is_dir( $dir ) ) { return new WP_Error( 'no_updates_dir', 'Updates directory not found', array( 'status' => 500 ) ); } $pattern = $dir . '/' . $slug . '-*.meta.json'; $files = glob( $pattern ); if ( empty( $files ) ) { return new WP_Error( 'not_found', sprintf( 'No manifest found for %s', $slug ), array( 'status' => 404 ) ); } // Sort by version parsed from filename. usort( $files, function ( $a, $b ) use ( $slug ) { $va = self::parse_version( $a, $slug ); $vb = self::parse_version( $b, $slug ); return version_compare( $vb, $va ); } ); return $files[0]; } private static function parse_version( $path, $slug ) { $basename = basename( $path, '.meta.json' ); $prefix = $slug . '-'; if ( 0 === strpos( $basename, $prefix ) ) { return substr( $basename, strlen( $prefix ) ); } return '0.0.0'; } /** * List all plugin slugs that have at least one manifest on disk. */ public static function list_slugs() { $dir = BW_UPDATE_SERVER_UPDATES_DIR; if ( ! is_dir( $dir ) ) { return array(); } $files = glob( $dir . '/bw-*.meta.json' ); $slugs = array(); foreach ( $files as $f ) { $basename = basename( $f, '.meta.json' ); // Strip trailing -X.Y.Z version if ( preg_match( '/^(bw-[a-z0-9-]+?)-\d+\.\d+\.\d+(?:[-+][A-Za-z0-9.\-]+)?$/', $basename, $m ) ) { $slugs[ $m[1] ] = true; } } return array_keys( $slugs ); } }