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

cfg_if::cfg_if! {
    if #[cfg(feature = "base64")] {
        mod base64_wrapper;
        pub use base64_wrapper::{base64_decode, base64_encode, Base64Engine};
    }
}

cfg_if::cfg_if! {
    if #[cfg(feature = "acl")] {
        mod acl;
        pub use acl::AccessControl;
    }
}

//
// can't use cfg_if here, because it will cause cbindgen to can't generate ffi.h correctly.
// see this issue: https://github.com/mozilla/cbindgen/issues/935
//
// cfg_if::cfg_if! {
//     if #[cfg(feature = "sockshub")] {

#[cfg(feature = "sockshub")]
mod config;
#[cfg(feature = "sockshub")]
pub use config::{ArgVerbosity, Config, Credentials, ProxyType};

#[cfg(feature = "sockshub")]
mod tokiort;
#[cfg(feature = "sockshub")]
use tokiort::TokioIo;

#[cfg(feature = "sockshub")]
mod http2socks;
#[cfg(feature = "sockshub")]
mod socks2socks;

#[cfg(feature = "sockshub")]
mod api;
#[cfg(feature = "sockshub")]
mod dump_logger;
#[cfg(feature = "sockshub")]
mod ffi;

#[cfg(feature = "sockshub")]
pub type BoxError = Box<dyn std::error::Error + Send + Sync>;
#[cfg(feature = "sockshub")]
pub type Result<T, E = BoxError> = std::result::Result<T, E>;

#[cfg(feature = "sockshub")]
use socks5_impl::protocol::{Address, UserKey};
#[cfg(feature = "sockshub")]
use std::{net::SocketAddr, time::Duration};
#[cfg(feature = "sockshub")]
use tokio::{
    net::{TcpStream, ToSocketAddrs},
    sync::mpsc::Receiver,
    time::timeout,
};

#[cfg(feature = "sockshub")]
pub async fn main_entry<F>(config: &Config, quit: Receiver<()>, callback: Option<F>) -> Result<(), BoxError>
where
    F: FnOnce(SocketAddr) + Send + Sync + 'static,
{
    match config.source_type {
        ProxyType::Http => http2socks::main_entry(config, quit, callback).await,
        ProxyType::Socks5 => socks2socks::main_entry(config, quit, callback).await,
    }
}

#[cfg(feature = "sockshub")]
pub(crate) const CONNECT_TIMEOUT: Duration = Duration::from_secs(5);

#[cfg(feature = "sockshub")]
pub(crate) async fn create_s5_connect<A: ToSocketAddrs>(
    server: A,
    dur: Duration,
    dst: &Address,
    auth: Option<UserKey>,
) -> std::io::Result<tokio::io::BufStream<TcpStream>> {
    let stream = timeout(dur, TcpStream::connect(server)).await??;
    let mut stream = tokio::io::BufStream::new(stream);
    socks5_impl::client::connect(&mut stream, dst, auth).await?;
    Ok(stream)
}

#[cfg(feature = "sockshub")]
pub(crate) fn std_io_error_other<E: Into<BoxError>>(err: E) -> std::io::Error {
    std::io::Error::new(std::io::ErrorKind::Other, err)
}

//     }
// }