ssl_stream.hpp

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#ifndef NEFORCE_NETWORK_SSL_SSL_STREAM_HPP__
#define NEFORCE_NETWORK_SSL_SSL_STREAM_HPP__

 
#include "NeForce/network/ssl/ssl_context.hpp"
NEFORCE_BEGIN_NAMESPACE__


class NEFORCE_API ssl_stream {
public:
    using native_handle_type =
#ifdef NEFORCE_PLATFORM_WINDOWS
            uintptr_t;
#else
            int;
#endif
 
private:
    struct ssl_deleter {
        void operator()(::SSL* ssl) const noexcept {
            if (ssl != nullptr) {
                ::SSL_free(ssl);
            }
        }
    };
 
    struct x509_deleter {
        void operator()(::X509* cert) const noexcept {
            if (cert != nullptr) {
                ::X509_free(cert);
            }
        }
    };
    using x509_ptr = unique_ptr<::X509, x509_deleter>;
 
    unique_ptr<::SSL, ssl_deleter> ssl_; 
    string last_error_;                  
 
    void handle_ssl_error(int ret, const char* operation);
 
public:
    ssl_stream() = default;

    explicit ssl_stream(const ssl_context& ctx) { reset(ctx); }
 
    ssl_stream(ssl_stream&& other) noexcept = default;
    ssl_stream& operator=(ssl_stream&& other) noexcept = default;

    void reset(const ssl_context& ctx);

    void set_fd(native_handle_type fd);

    void accept();

    bool connect();

    void close() noexcept;

    ssize_t read(void* buffer, size_t size);

    ssize_t write(const void* buffer, size_t size);

    vector<char> read_all(size_t max_size = 8192);

    bool write_all(const void* data, size_t size);

    NEFORCE_NODISCARD int pending() const;

    void set_sni_hostname(const string& hostname);

    NEFORCE_NODISCARD x509_ptr get_peer_certificate() const;

    NEFORCE_NODISCARD bool verify_peer() const;

    NEFORCE_NODISCARD string get_cipher_name() const;

    NEFORCE_NODISCARD string get_version() const;

    NEFORCE_NODISCARD const string& last_error() const { return last_error_; }

    NEFORCE_NODISCARD bool is_valid() const noexcept { return ssl_ != nullptr; }

    explicit operator bool() const noexcept { return is_valid(); }

    NEFORCE_NODISCARD ::SSL* native_handle() const noexcept { return ssl_.get(); }

    NEFORCE_NODISCARD ::SSL* release() noexcept { return ssl_.release(); }
};
 // SSL/TLS
 
NEFORCE_END_NAMESPACE__
#endif // NEFORCE_NETWORK_SSL_SSL_STREAM_HPP__