answer.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 ANSWER_HPP
#define ANSWER_HPP
 
    // C system header files
#include "my_config.h"
extern "C"
{
 
}
 
    // C++ system header files
#include <string>
#include <map>
 
    // webdar headers
#include "uri.hpp"
#include "webdar_tools.hpp"
#include "exceptions.hpp"
#include "proto_connexion.hpp"
 
 
 
class answer
{
public:
    answer() { clear(); };
 
    answer(const answer & ref) { copy_from(ref); };
 
    answer(answer && ref) noexcept = default;
 
    answer & operator = (const answer & ref) { copy_from(ref); return *this; };
 
    answer & operator = (answer && ref) noexcept = default;
 
    ~answer() = default;
 
 
 
    void clear();
 
    void set_status(unsigned int status_code) { status = status_code; };
 
    void set_reason(const std::string & reason_phrase) { reason = reason_phrase; };
 
    void set_version(unsigned int maj, unsigned int min) { maj_vers = maj; min_vers = min; };
 
    void add_cookie(const std::string & key, const std::string & value);
 
 
    void add_body(const std::string & key);
 
    void drop_body_keep_header() { body = ""; };
 
    void set_attribute(const std::string & key, const std::string & value) { attributes[webdar_tools_to_canonical_case(key)] = value; };
 
    void add_attribute_member(const std::string & key, const std::string & value);
 
 
 
    bool is_valid() const;
 
 
 
 
    unsigned int get_status_code() const { return status; };
 
    const std::string get_reason() const { return reason; };
 
    unsigned int get_maj_version() const { return maj_vers; };
 
    unsigned int get_min_version() const { return min_vers; };
 
    const std::string get_body() const { return body; };
 
    bool find_attribute(const std::string & key, std::string & value) const;
 
 
 
    void write(proto_connexion & output);
 
private:
    unsigned int status;       
    std::string reason;        
    unsigned int maj_vers;     
    unsigned int min_vers;     
    std::map<std::string, std::string> attributes; 
    std::string body;          
 
    mutable std::map<std::string, std::string>::const_iterator next_read;
 
    void reset_read_next_attribute() const;
 
    bool read_next_attribute(std::string & key, std::string & value) const;
 
    void copy_from(const answer & ref);
 
};
 
#endif