WP_REST_Attachments_Controller::check_upload_size( array $file ): true|WP_Error

2216	protected function check_upload_size( $file ) {2217		if ( ! is_multisite() ) {2218			return true;2219		}2220 2221		if ( get_site_option( 'upload_space_check_disabled' ) ) {2222			return true;2223		}2224 2225		$space_left = get_upload_space_available();2226 2227		$file_size = filesize( $file['tmp_name'] );2228 2229		if ( $space_left < $file_size ) {2230			return new WP_Error(2231				'rest_upload_limited_space',2232				/* translators: %s: Required disk space in kilobytes. */2233				sprintf( __( 'Not enough space to upload. %s KB needed.' ), number_format( ( $file_size - $space_left ) / KB_IN_BYTES ) ),2234				array( 'status' => 400 )2235			);2236		}2237 2238		if ( $file_size > ( KB_IN_BYTES * get_site_option( 'fileupload_maxk', 1500 ) ) ) {2239			return new WP_Error(2240				'rest_upload_file_too_big',2241				/* translators: %s: Maximum allowed file size in kilobytes. */2242				sprintf( __( 'This file is too big. Files must be less than %s KB in size.' ), get_site_option( 'fileupload_maxk', 1500 ) ),2243				array( 'status' => 400 )2244			);2245		}2246 2247		// Include multisite admin functions to get access to upload_is_user_over_quota().2248		require_once ABSPATH . 'wp-admin/includes/ms.php';2249 2250		if ( upload_is_user_over_quota( false ) ) {2251			return new WP_Error(2252				'rest_upload_user_quota_exceeded',2253				__( 'You have used your space quota. Please delete files before uploading.' ),2254				array( 'status' => 400 )2255			);2256		}2257 2258		return true;2259	}