entrepot_libssh.hpp

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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2025 Denis Corbin
//
// 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 2
// 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// to contact the author, see the AUTHOR file
/*********************************************************************/
 
 
#ifndef ENTREPOT_LIBSSH_HPP
#define ENTREPOT_LIBSSH_HPP
 
#include "../my_config.h"
 
extern "C"
{
#if HAVE_LIBSSH_LIBSSH_H
#include <libssh/libssh.h>
#include <libssh/sftp.h>
#endif
}
 
#include <string>
#include <memory>
 
#include "mem_ui.hpp"
#include "entrepot.hpp"
#include "fichier_global.hpp"
#include "libssh_connection.hpp"
 
namespace libdar
{
 
 
    class entrepot_libssh : public entrepot, public mem_ui
    {
    public:
 
 
    entrepot_libssh(const std::shared_ptr<user_interaction> & dialog, 
            const std::string & login,              
            const secu_string & password,           
            const std::string & host,               
            const std::string & port,               
            bool auth_from_file,                    
            const std::string & sftp_pub_keyfile,   
            const std::string & sftp_prv_keyfile,   
            const std::string & sftp_known_hosts,   
            U_I waiting_time,                       
            bool verbose = false                    
        );
 
    entrepot_libssh(const entrepot_libssh & ref);
    entrepot_libssh(entrepot_libssh && ref) noexcept = delete;
    entrepot_libssh & operator = (const entrepot_libssh & ref) = delete;
    entrepot_libssh & operator = (entrepot_libssh && ref) noexcept = delete;
    ~entrepot_libssh() noexcept { read_dir_flush(); };
 
    virtual std::string get_url() const override;
 
    virtual void read_dir_reset() const override;
    virtual bool read_dir_next(std::string & filename) const override;
    virtual void read_dir_reset_dirinfo() const override;
    virtual bool read_dir_next_dirinfo(std::string & filename, inode_type & tp) const override;
 
    virtual void create_dir(const std::string & dirname, U_I permission) override;
 
    virtual entrepot *clone() const override { return new (std::nothrow) entrepot_libssh(*this); };
 
 
    protected:
    virtual fichier_global *inherited_open(const std::shared_ptr<user_interaction> & dialog,
                           const std::string & filename,
                           gf_mode mode,
                           bool force_permission,
                           U_I permission,
                           bool fail_if_exists,
                           bool erase) const override;
 
    virtual void inherited_unlink(const std::string & filename) const override;
    virtual void read_dir_flush() const override;
 
    private:
#if LIBSSH_AVAILABLE
        // constructor received parameters
    std::string server_url;
 
        // libssh structures
    mutable sftp_dir sdir;    // using for read_dir/read_next[_dirinfo]() paradygm
 
        // shared libssh structures
    std::shared_ptr<libssh_connection> connect;
#endif
 
    };
 
 
} // end of namespace
 
#endif