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i_entrepot_libcurl.hpp
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1 /*********************************************************************/
2 // dar - disk archive - a backup/restoration program
3 // Copyright (C) 2002-2020 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 : http://dar.linux.free.fr/email.html
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 );
72 i_entrepot_libcurl(const i_entrepot_libcurl & ref) = default;
73 i_entrepot_libcurl(i_entrepot_libcurl && ref) = default;
74 i_entrepot_libcurl & operator = (const i_entrepot_libcurl & ref) = default;
75 i_entrepot_libcurl & operator = (i_entrepot_libcurl && ref) noexcept = default;
76 ~i_entrepot_libcurl() throw () {};
77
78
79 // inherited from class entrepot
80
83 virtual std::string get_url() const override { return base_URL + get_full_path().display(); };
84 virtual void read_dir_reset() const override;
85 virtual bool read_dir_next(std::string & filename) const override;
86 virtual entrepot *clone() const override { return new (std::nothrow) i_entrepot_libcurl(*this); };
87
88 protected:
89
90 // inherited from class entrepot
91
92 virtual fichier_global *inherited_open(const std::shared_ptr<user_interaction> & dialog,
93 const std::string & filename,
94 gf_mode mode,
95 bool force_permission,
96 U_I permission,
97 bool fail_if_exists,
98 bool erase) const override;
99
100 virtual void inherited_unlink(const std::string & filename) const override;
101 virtual void read_dir_flush() override;
102
103 private:
104 mycurl_protocol x_proto;
105 std::string base_URL;
106 mycurl_easyhandle_sharing easyh;
107 std::deque<std::string> current_dir;
108 std::string reading_dir_tmp;
109 U_I wait_delay;
110
111 void set_libcurl_URL();
112 void set_libcurl_authentication(user_interaction & dialog,
113 const std::string & location,
114 const std::string & login,
115 const secu_string & password,
116 bool auth_from_file,
117 const std::string & sftp_pub_keyfile,
118 const std::string & sftp_prv_keyfile,
119 const std::string & sftp_known_hosts
120 );
121 void detruit();
122
123 static std::string mycurl_protocol2string(mycurl_protocol proto);
124 static std::string build_url_from(mycurl_protocol proto, const std::string & host, const std::string & port);
125 static size_t get_ftp_listing_callback(void *buffer, size_t size, size_t nmemb, void *userp);
126 static size_t null_callback(void *buffer, size_t size, size_t nmemb, void *userp) { return size*nmemb; };
127 static bool mycurl_is_protocol_available(mycurl_protocol proto);
128
129 // needed to access the entrepot inherited protected methods
130 friend class entrepot_libcurl;
131 };
132
133 #endif
134
136 } // end of namespace
137
138 #endif
libdar::entrepot_libcurl::get_full_path
virtual path get_full_path() const override
returns the full path of location
libdar::entrepot_libcurl::clone
virtual entrepot * clone() const override
generate a clone of "this"
Definition: entrepot_libcurl.hpp:88
libdar::gf_mode
gf_mode
generic_file openning modes
Definition: gf_mode.hpp:44
libdar::entrepot_libcurl::entrepot_libcurl
entrepot_libcurl(const std::shared_ptr< user_interaction > &dialog, mycurl_protocol proto, 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)
libdar::entrepot::entrepot
entrepot()
constructor
libdar::path::display
std::string display() const
convert back a path to a string
libdar::entrepot_libcurl::get_url
virtual std::string get_url() const override
secu_string.hpp
this file contains the definition of secu_string class, a std::string like class but allocated in sec...
libdar::mycurl_protocol
mycurl_protocol
libcurl protocols supported by libdar
Definition: mycurl_protocol.hpp:49
mycurl_easyhandle_sharing.hpp
used to optimize network session establised by libcurl
entrepot_libcurl.hpp
defines the implementation for remote filesystem entrepot using libcurl
libdar::entrepot_libcurl::read_dir_reset
virtual void read_dir_reset() const override
routines to read existing files in the current directory (see set_location() / set_root() methods)
mem_ui.hpp
class mem_ui definition. This class is to be used as parent class to handle user_interaction object m...
libdar
libdar namespace encapsulate all libdar symbols
Definition: archive.hpp:47