ssl.h

/*
Copyright (c) 2016 Alexei Novakov
https://github.com/novalexei

Distributed under the Boost Software License, Version 1.0.
http://boost.org/LICENSE_1_0.txt
*/
#ifndef MOD_SERVLET_SSL_H
#define MOD_SERVLET_SSL_H

#include <vector>
#include <chrono>
#include <map>
#include <experimental/string_view>

namespace servlet
{

using std::experimental::string_view;

class certificate
{
public:
    typedef std::chrono::time_point<std::chrono::system_clock, typename std::chrono::system_clock::duration> time_type;

    virtual ~certificate() noexcept {};

    virtual int version() const = 0;

    virtual string_view serial_number() const = 0;

    virtual time_type valid_since() const = 0;

    virtual time_type valid_until() const = 0;

    virtual bool check_valid() const = 0;

    virtual bool check_valid(time_type time) const = 0;

    virtual string_view signature_algorithm_name() const = 0;

    virtual string_view key_algorithm_name() const = 0;

    virtual string_view subject_DN() const = 0;

    virtual const std::map<string_view, string_view, std::less<>>& subject_DN_components() const = 0;

    virtual string_view issuer_DN() const = 0;

    virtual const std::map<string_view, string_view, std::less<>>& issuer_DN_components() const = 0;

    virtual const std::map<string_view, std::vector<string_view>, std::less<>>& subject_alternative_names() const = 0;

    virtual string_view certificate_exact_assertion() const = 0;

    virtual const std::vector<string_view>& certificate_chain() const = 0;

    virtual string_view PEM_encoded() const = 0;
};

enum class SSL_SESSION_STATE
{
    INITIAL,
    RESUMED
};

template<typename CharT, typename Traits>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& out, SSL_SESSION_STATE ss)
{
    switch (ss)
    {
        case SSL_SESSION_STATE::INITIAL: out << "INITIAL"; break;
        case SSL_SESSION_STATE::RESUMED: out << "RESUMED"; break;
    }
    return out;
}

class SSL_information
{
public:
    virtual ~SSL_information() noexcept {}

    virtual string_view protocol() const = 0;

    virtual string_view cipher_name() const = 0;

    virtual bool is_cipher_export() const = 0;

    virtual int cipher_used_bits() const = 0;

    virtual int cipher_possible_bits() const = 0;

    virtual string_view compress_method() const = 0;

    virtual string_view session_id() const = 0;

    virtual SSL_SESSION_STATE session_state() const = 0;

    virtual const certificate& client_certificate() const = 0;

    virtual const certificate& server_certificate() const = 0;
};

} // end of servlet namespace

#endif // MOD_SERVLET_SSL_H