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i_entrepot_libcurl.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2025 Denis Corbin
4//
5// This program is free software; you can redistribute it and/or
6// modify it under the terms of the GNU General Public License
7// as published by the Free Software Foundation; either version 2
8// of the License, or (at your option) any later version.
9//
10// This program is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU General Public License for more details.
14//
15// You should have received a copy of the GNU General Public License
16// along with this program; if not, write to the Free Software
17// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18//
19// to contact the author, see the AUTHOR file
20/*********************************************************************/
21
25
26#ifndef I_ENTREPOT_LIBCURL_HPP
27#define I_ENTREPOT_LIBCURL_HPP
28
29#include "../my_config.h"
30
31 extern "C"
32{
33#if LIBCURL_AVAILABLE
34#if HAVE_CURL_CURL_H
35#include <curl/curl.h>
36#endif
37#endif
38}
39
40#include <string>
41#include <deque>
42#include "entrepot_libcurl.hpp"
43#include "secu_string.hpp"
44#include "mem_ui.hpp"
45#include "mycurl_easyhandle_sharing.hpp"
46
47 namespace libdar
48{
49
52
54
55#if defined ( LIBCURL_AVAILABLE ) && defined ( LIBTHREADAR_AVAILABLE )
56
57 class entrepot_libcurl::i_entrepot_libcurl : public entrepot, public mem_ui
58 {
59 public:
60 i_entrepot_libcurl(const std::shared_ptr<user_interaction> & dialog,
61 mycurl_protocol proto,
62 const std::string & login,
63 const secu_string & password,
64 const std::string & host,
65 const std::string & port,
66 bool auth_from_file,
67 const std::string & sftp_pub_keyfile,
68 const std::string & sftp_prv_keyfile,
69 const std::string & sftp_known_hosts,
70 U_I waiting_time,
71 bool verbose
72 );
73 i_entrepot_libcurl(const i_entrepot_libcurl & ref) = default;
74 i_entrepot_libcurl(i_entrepot_libcurl && ref) = default;
75 i_entrepot_libcurl & operator = (const i_entrepot_libcurl & ref) = delete;
76 i_entrepot_libcurl & operator = (i_entrepot_libcurl && ref) noexcept = delete;
77 ~i_entrepot_libcurl() throw () {};
78
79
80 // inherited from class entrepot
81
84 virtual std::string get_url() const override { return base_URL + get_full_path().display_without_root(); };
85 virtual void read_dir_reset() const override;
86 virtual bool read_dir_next(std::string & filename) const override;
87 virtual entrepot *clone() const override { return new (std::nothrow) i_entrepot_libcurl(*this); };
88
89 protected:
90
91 // inherited from class entrepot
92
93 virtual fichier_global *inherited_open(const std::shared_ptr<user_interaction> & dialog,
94 const std::string & filename,
95 gf_mode mode,
96 bool force_permission,
97 U_I permission,
98 bool fail_if_exists,
99 bool erase) const override;
100
101 virtual void inherited_unlink(const std::string & filename) const override;
102 virtual void read_dir_flush() override;
103
104 private:
105 mycurl_protocol x_proto;
106 std::string base_URL;
107 mycurl_easyhandle_sharing easyh;
108 std::deque<std::string> current_dir;
109 std::string reading_dir_tmp;
110 U_I wait_delay;
111 bool verbosity;
112
113 std::string get_libcurl_URL() const;
114 void set_libcurl_authentication(user_interaction & dialog,
115 const std::string & location,
116 const std::string & login,
117 const secu_string & password,
118 bool auth_from_file,
119 const std::string & sftp_pub_keyfile,
120 const std::string & sftp_prv_keyfile,
121 const std::string & sftp_known_hosts
122 );
123 void detruit();
124
125 static std::string mycurl_protocol2string(mycurl_protocol proto);
126 static std::string build_url_from(mycurl_protocol proto, const std::string & host, const std::string & port);
127 static size_t get_ftp_listing_callback(void *buffer, size_t size, size_t nmemb, void *userp);
128 static size_t null_callback(void *buffer, size_t size, size_t nmemb, void *userp) { return size*nmemb; };
129 static bool mycurl_is_protocol_available(mycurl_protocol proto);
130
131 // needed to access the entrepot inherited protected methods
132 friend class entrepot_libcurl;
133 };
134
135#endif
137
138} // end of namespace
139
140#endif
entrepot_libcurl.hpp
defines the implementation for remote filesystem entrepot using libcurl
mem_ui.hpp
class mem_ui definition. This class is to be used as parent class to handle user_interaction object m...
my_config.h
include macro defined by the configure script and some specific additional ones
mycurl_easyhandle_sharing.hpp
used to optimize network session establised by libcurl
libdar
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47
secu_string.hpp
this file contains the definition of secu_string class, a std::string like class but allocated in sec...