public static function process_login() {
		// The global form-login.php template used `_wpnonce` in template versions < 3.3.0.
		$nonce_value = wc_get_var( $_REQUEST['woocommerce-login-nonce'], wc_get_var( $_REQUEST['_wpnonce'], '' ) ); // @codingStandardsIgnoreLine.

		if ( isset( $_POST['login'], $_POST['username'], $_POST['password'] ) && wp_verify_nonce( $nonce_value, 'woocommerce-login' ) ) {

			try {
				$creds = array(
					'user_login'    => trim( wp_unslash( $_POST['username'] ) ), // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
					'user_password' => $_POST['password'], // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized, WordPress.Security.ValidatedSanitizedInput.MissingUnslash
					'remember'      => isset( $_POST['rememberme'] ), // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
				);

				$validation_error = new WP_Error();
				$validation_error = apply_filters( 'woocommerce_process_login_errors', $validation_error, $creds['user_login'], $creds['user_password'] );

				if ( $validation_error->get_error_code() ) {
					throw new Exception( '<strong>' . __( 'Error:', 'woocommerce' ) . '</strong> ' . $validation_error->get_error_message() );
				}

				if ( empty( $creds['user_login'] ) ) {
					throw new Exception( '<strong>' . __( 'Error:', 'woocommerce' ) . '</strong> ' . __( 'Username is required.', 'woocommerce' ) );
				}

				// On multisite, ensure user exists on current site, if not add them before allowing login.
				if ( is_multisite() ) {
					$user_data = get_user_by( is_email( $creds['user_login'] ) ? 'email' : 'login', $creds['user_login'] );

					if ( $user_data && ! is_user_member_of_blog( $user_data->ID, get_current_blog_id() ) ) {
						add_user_to_blog( get_current_blog_id(), $user_data->ID, 'customer' );
					}
				}

				// Perform the login.
				$user = wp_signon( apply_filters( 'woocommerce_login_credentials', $creds ), is_ssl() );

				if ( is_wp_error( $user ) ) {
					throw new Exception( $user->get_error_message() );
				} else {

					if ( ! empty( $_POST['redirect'] ) ) {
						$redirect = wp_unslash( $_POST['redirect'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
					} elseif ( wc_get_raw_referer() ) {
						$redirect = wc_get_raw_referer();
					} else {
						$redirect = wc_get_page_permalink( 'myaccount' );
					}

					wp_redirect( wp_validate_redirect( apply_filters( 'woocommerce_login_redirect', remove_query_arg( 'wc_error', $redirect ), $user ), wc_get_page_permalink( 'myaccount' ) ) ); // phpcs:ignore
					exit;
				}
			} catch ( Exception $e ) {
				wc_add_notice( apply_filters( 'login_errors', $e->getMessage() ), 'error' );
				do_action( 'woocommerce_login_failed' );
			}
		}
	}