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/*
* Ricochet - A minimalist CLI web browser for fast, distraction-free navigation.
* Copyright (C) 2026 Richard Qin
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "sys/address.hh"
#include "sys/socket.hh"
#include <memory>
#include <string>
#include <string_view>
extern "C" {
using SSL_CTX = struct ssl_ctx_st;
using SSL = struct ssl_st;
}
namespace ricochet::net {
struct SslCtxDeleter
{
void operator()( SSL_CTX* ptr ) const;
};
struct SslDeleter
{
void operator()( SSL* ptr ) const;
};
using UniqueSslCtx = std::unique_ptr<SSL_CTX, SslCtxDeleter>;
using UniqueSsl = std::unique_ptr<SSL, SslDeleter>;
/**
* @brief Socket wrapper that supports TLS/SSL encrypted handshake
*/
class SSLSocket
{
public:
SSLSocket();
~SSLSocket() = default;
SSLSocket( const SSLSocket& ) = delete;
SSLSocket& operator=( const SSLSocket& ) = delete;
SSLSocket( SSLSocket&& ) = delete;
SSLSocket& operator=( SSLSocket&& ) = delete;
/**
* @brief Connect to a remote host using TLS/SSL
* @param host The hostname to connect to
* @param port The port to connect to
* @return True if the connection was successful, false otherwise
*/
void connect( const Address& address, const std::string& hostname );
/**
* @brief Send data over the TLS/SSL connection
* @param data The data to send
* @return The number of bytes sent, or -1 if an error occurred
*/
std::size_t write( std::string_view data );
/**
* @brief Receive data from the TLS/SSL connection
* @param buffer The buffer to store the received data
*/
void read( std::string& buffer );
/**
* @brief Check if the TLS/SSL connection is closed
* @return True if the connection is closed, false otherwise
*/
bool eof() const;
private:
TCPSocket underlying_socket_ {}; // TCP Socket
UniqueSslCtx ctx_ { nullptr }; // OpenSSL global context
UniqueSsl ssl_ { nullptr }; // Current connection's SSL state
bool eof_ { false }; // EOF flag
};
} // namespace ricochet::net
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