get_filesystem(); $path = $this->get_path( $handle ); if ( $is_valid_cache ) { if ( ! $filesystem->exists( $path ) ) { return null; } // Return the existing file return Style_File::create( $this->sanitize_handle( $handle ), $this->get_filesystem_path( $this->get_path( $handle ) ), $this->get_url( $handle ), $media, ); } $css = $get_css(); if ( empty( $css ) ) { return null; } $filesystem_path = $this->get_filesystem_path( $path ); $is_created = $filesystem->put_contents( $filesystem_path, $css, self::PERMISSIONS ); if ( false === $is_created ) { return null; } return Style_File::create( $this->sanitize_handle( $handle ), $filesystem_path, $this->get_url( $handle ), $media ); } public function delete( string $handle ): void { $filesystem = $this->get_filesystem(); $path = $this->get_path( $handle ); if ( ! $filesystem->exists( $path ) ) { return; } $filesystem->delete( $path ); } private function get_filesystem(): \WP_Filesystem_Base { global $wp_filesystem; if ( empty( $wp_filesystem ) ) { require_once ABSPATH . '/wp-admin/includes/file.php'; WP_Filesystem(); } return $wp_filesystem; } private function get_filesystem_path( $path ): string { $filesystem = $this->get_filesystem(); return str_replace( ABSPATH, $filesystem->abspath(), $path ); } private function get_url( string $handle ): string { $upload_dir = wp_upload_dir(); $sanitized_handle = $this->sanitize_handle( $handle ); $handle = $sanitized_handle . self::FILE_EXTENSION; return trailingslashit( $upload_dir['baseurl'] ) . self::DEFAULT_CSS_DIR . $handle; } private function get_path( string $handle ): string { $upload_dir = wp_upload_dir(); $sanitized_handle = $this->sanitize_handle( $handle ); $handle = $sanitized_handle . self::FILE_EXTENSION; return trailingslashit( $upload_dir['basedir'] ) . self::DEFAULT_CSS_DIR . $handle; } private function sanitize_handle( string $handle ): string { return preg_replace( '/[^a-zA-Z0-9_-]/', '', $handle ); } }