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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/net/socket_spec.h>
/**
* Assemble an SNI (Server Name Indication) spec that will be used
* when handshaking over TLS. The authority will be used if
* non-empty. Hostname/port will be used as fall-back. Note that the
* SNI spec will also be used to generate the Host header used in
* subsequent HTTP requests.
*
* @return sni spec
* @param authority user-provided authority
* @param hostname name of the host we are connecting to
* @param port which port we are connecting to
* @param use_https are we using https? (TLS)
**/
vespalib::SocketSpec make_sni_spec(const std::string &authority, const char *hostname, int port, bool use_https);
/**
* Use an SNI spec to generate a matching Host header to be used in
* HTTP requests. Note that default port numbers will be omitted.
*
* @return host header value
* @param sni_spec SNI spec
* @param use_https are we using https? (TLS)
**/
std::string make_host_header_value(const vespalib::SocketSpec &sni_spec, bool use_https);
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