parser.hpp

/*********************************************************************/
// webdar - a web server and interface program to libdar
// Copyright (C) 2013-2025 Denis Corbin
//
// This file is part of Webdar
//
//  Webdar 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.
//
//  Webdar 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 Webdar.  If not, see <http://www.gnu.org/licenses/>
//
//----
//  to contact the author: dar.linux@free.fr
/*********************************************************************/
 
#ifndef PARSER_HPP
#define PARSER_HPP
 
#include "my_config.h"
 
    // C++ system header files
#include <memory>
 
    // webdar headers
#include "exceptions.hpp"
#include "proto_connexion.hpp"
#include "central_report.hpp"
#include "request.hpp"
#include "answer.hpp"
 
 
class parser
{
public:
    parser(std::unique_ptr<proto_connexion> & input,
       const std::shared_ptr<central_report> & log);
 
    parser(const parser & ref) = delete;
    parser(parser && ref) noexcept = delete;
    parser & operator = (const parser & ref) = delete;
    parser & operator = (parser && ref) noexcept = delete;
 
    ~parser() { close(); };
 
    proto_connexion::status get_status() const { if(!source) return proto_connexion::not_connected; return source->get_status(); };
 
    bool get_next_request_uri(uri & val);
 
    const request & get_request();
 
    void send_answer(answer & ans);
 
    void close();
 
private:
    bool answered;             //< whether last request was answered or not
    std::unique_ptr<proto_connexion> source; //< the proto_connexion to the client
    request req;               //< value of the last request
 
    void valid_source() const { if(!source || source->get_status() != proto_connexion::connected) throw exception_range("socket disconnected"); };
    void checks_main(const request & req, answer & ans);
    void checks_webdar(const request & req, answer & ans);
    void checks_rfc1945(const request & req, answer & ans);
};
 
 
#endif