import * as cloudfront from '../../aws-cloudfront';
import type * as cdk from '../../core';
/**
 * Properties for an Origin backed by an S3 website-configured bucket, load balancer, or custom HTTP server.
 */
export interface HttpOriginProps extends cloudfront.OriginProps {
    /**
     * Specifies the protocol (HTTP or HTTPS) that CloudFront uses to connect to the origin.
     *
     * @default OriginProtocolPolicy.HTTPS_ONLY
     */
    readonly protocolPolicy?: cloudfront.OriginProtocolPolicy;
    /**
     * The SSL versions to use when interacting with the origin.
     *
     * @default OriginSslPolicy.TLS_V1_2
     */
    readonly originSslProtocols?: cloudfront.OriginSslPolicy[];
    /**
     * The HTTP port that CloudFront uses to connect to the origin.
     *
     * @default 80
     */
    readonly httpPort?: number;
    /**
     * The HTTPS port that CloudFront uses to connect to the origin.
     *
     * @default 443
     */
    readonly httpsPort?: number;
    /**
     * Specifies how long, in seconds, CloudFront waits for a response from the origin, also known as the origin response timeout.
     * The minimum is 1 second. The maximum is governed by the origin response timeout quota, which is
     * adjustable, so the effective maximum depends on the target account.
     *
     * The default quota allows up to 120 seconds; higher values require an approved limit increase
     * in the target account, and otherwise produce an error at deploy time.
     *
     * @default Duration.seconds(30)
     */
    readonly readTimeout?: cdk.Duration;
    /**
     * Specifies how long, in seconds, CloudFront persists its connection to the origin.
     * The minimum is 1 second. The maximum is governed by the keep-alive timeout per origin quota,
     * which is adjustable, so the effective maximum depends on the target account.
     *
     * The default quota allows up to 300 seconds; higher values require an approved limit increase
     * in the target account, and otherwise produce an error at deploy time.
     *
     * @default Duration.seconds(5)
     */
    readonly keepaliveTimeout?: cdk.Duration;
    /**
     * Specifies which IP protocol CloudFront uses when connecting to your origin.
     *
     * If your origin uses both IPv4 and IPv6 protocols, you can choose dualstack to help optimize reliability.
     *
     * @default undefined - AWS Cloudfront default is IPv4
     */
    readonly ipAddressType?: cloudfront.OriginIpAddressType;
}
/**
 * An Origin for an HTTP server or S3 bucket configured for website hosting.
 */
export declare class HttpOrigin extends cloudfront.OriginBase {
    private readonly props;
    constructor(domainName: string, props?: HttpOriginProps);
    protected renderCustomOriginConfig(): cloudfront.CfnDistribution.CustomOriginConfigProperty | undefined;
    private validatePortNumber;
}