1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
//! Contains the [`StorageBackend`] trait that can be implemented to create virtual file systems for libunftp.
//!
//! Pre-made implementations exists on crates.io (search for `unftp-sbe-`) and you can define your
//! own implementation to integrate your FTP(S) server with whatever storage mechanism you prefer.
//!
//! To create a new storage back-end:
//!
//! 1. Declare dependencies on the async-trait, tokio, and unftp-core crates:
//!
//! ```toml
//! async-trait = "0.1.89"
//! tokio = { version = "1.49.0", features = ["full"] }
//! unftp-core = { path = "../path/to/unftp-core" }
//! ```
//!
//! 2. Implement the [`StorageBackend`] trait and optionally the [`Metadata`] trait:
//!
//! ```no_run
//! use async_trait::async_trait;
//! use unftp_core::{
//! storage::{Fileinfo, Metadata, Result, StorageBackend},
//! auth::DefaultUser
//! };
//! use std::{
//! fmt::Debug,
//! path::{Path, PathBuf},
//! time::SystemTime
//! };
//!
//! #[derive(Debug)]
//! pub struct Vfs {}
//!
//! #[derive(Debug)]
//! pub struct Meta {
//! inner: std::fs::Metadata,
//! }
//!
//! impl Vfs {
//! fn new() -> Vfs { Vfs{} }
//! }
//!
//! #[async_trait]
//! impl unftp_core::storage::StorageBackend<DefaultUser> for Vfs {
//! type Metadata = Meta;
//!
//! async fn metadata<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! ) -> Result<Self::Metadata> {
//! unimplemented!()
//! }
//!
//! async fn list<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! ) -> Result<Vec<Fileinfo<PathBuf, Self::Metadata>>>
//! where
//! <Self as StorageBackend<DefaultUser>>::Metadata: Metadata,
//! {
//! unimplemented!()
//! }
//!
//! async fn get<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! start_pos: u64,
//! ) -> Result<Box<dyn tokio::io::AsyncRead + Send + Sync + Unpin>> {
//! unimplemented!()
//! }
//!
//! async fn put<
//! P: AsRef<Path> + Send + Debug,
//! R: tokio::io::AsyncRead + Send + Sync + Unpin + 'static,
//! >(
//! &self,
//! user: &DefaultUser,
//! input: R,
//! path: P,
//! start_pos: u64,
//! ) -> Result<u64> {
//! unimplemented!()
//! }
//!
//! async fn del<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! ) -> Result<()> {
//! unimplemented!()
//! }
//!
//! async fn mkd<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! ) -> Result<()> {
//! unimplemented!()
//! }
//!
//! async fn rename<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! from: P,
//! to: P,
//! ) -> Result<()> {
//! unimplemented!()
//! }
//!
//! async fn rmd<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! ) -> Result<()> {
//! unimplemented!()
//! }
//!
//! async fn cwd<P: AsRef<Path> + Send + Debug>(
//! &self,
//! user: &DefaultUser,
//! path: P,
//! ) -> Result<()> {
//! unimplemented!()
//! }
//! }
//!
//! impl Metadata for Meta {
//! fn len(&self) -> u64 {
//! self.inner.len()
//! }
//!
//! fn is_dir(&self) -> bool {
//! self.inner.is_dir()
//! }
//!
//! fn is_file(&self) -> bool {
//! self.inner.is_file()
//! }
//!
//! fn is_symlink(&self) -> bool {
//! self.inner.file_type().is_symlink()
//! }
//!
//! fn modified(&self) -> Result<SystemTime> {
//! self.inner.modified().map_err(|e| e.into())
//! }
//!
//! fn gid(&self) -> u32 {
//! 0
//! }
//!
//! fn uid(&self) -> u32 {
//! 0
//! }
//! }
//! ```
//!
//! 3. Initialize it with the server in your application.
//!
pub use ;
pub use ;