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feat: 支持通过 udp 转发。

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This commit is contained in:
Ivan Li 2023-05-14 11:55:43 +08:00
parent 0adccb7100
commit c44018e633
5 changed files with 226 additions and 17 deletions
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78
Cargo.lock generated
View File

@ -2,6 +2,15 @@
# It is not intended for manual editing.
version = 3
[[package]]
name = "aho-corasick"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "67fc08ce920c31afb70f013dcce1bfc3a3195de6a228474e45e1f145b36f8d04"
dependencies = [
"memchr",
]
[[package]]
name = "anstream"
version = "0.3.2"
@ -51,6 +60,12 @@ dependencies = [
"windows-sys 0.48.0",
]
[[package]]
name = "anyhow"
version = "1.0.71"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
[[package]]
name = "autocfg"
version = "1.1.0"
@ -179,6 +194,19 @@ dependencies = [
"crypto-common",
]
[[package]]
name = "env_logger"
version = "0.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
dependencies = [
"humantime",
"is-terminal",
"log",
"regex",
"termcolor",
]
[[package]]
name = "errno"
version = "0.3.1"
@ -318,6 +346,12 @@ version = "1.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
[[package]]
name = "humantime"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
[[package]]
name = "idna"
version = "0.3.0"
@ -388,6 +422,12 @@ dependencies = [
"cfg-if",
]
[[package]]
name = "memchr"
version = "2.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
[[package]]
name = "mio"
version = "0.8.6"
@ -404,8 +444,11 @@ dependencies = [
name = "network-monitor"
version = "0.1.0"
dependencies = [
"anyhow",
"clap",
"env_logger",
"futures-util",
"log",
"serde",
"serde_json",
"tokio",
@ -533,6 +576,23 @@ dependencies = [
"bitflags",
]
[[package]]
name = "regex"
version = "1.8.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "af83e617f331cc6ae2da5443c602dfa5af81e517212d9d611a5b3ba1777b5370"
dependencies = [
"aho-corasick",
"memchr",
"regex-syntax",
]
[[package]]
name = "regex-syntax"
version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c"
[[package]]
name = "rustix"
version = "0.37.19"
@ -652,6 +712,15 @@ dependencies = [
"unicode-ident",
]
[[package]]
name = "termcolor"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
dependencies = [
"winapi-util",
]
[[package]]
name = "thiserror"
version = "1.0.40"
@ -826,6 +895,15 @@ version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
[[package]]
name = "winapi-util"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
dependencies = [
"winapi",
]
[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"

3
Cargo.toml
View File

@ -6,8 +6,11 @@ version = "0.1.0"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1.0.71"
clap = {version = "4.2.7", features = ["derive"]}
env_logger = "0.10.0"
futures-util = "0.3.28"
log = "0.4.17"
serde = { version = "1.0.163", features = ["derive"] }
serde_json = "1.0.96"
tokio = {version = "1.11.0", features = ["full"]}

39
src/main.rs
View File

@ -7,6 +7,7 @@ use tokio_tungstenite::connect_async;
mod clash_conn_msg;
mod statistics;
mod udp_server;
#[derive(Parser)]
#[clap(
@ -27,6 +28,8 @@ struct Args {
#[tokio::main]
async fn main() {
env_logger::init();
println!("Hello, world!");
let args = Args::parse();
@ -61,22 +64,26 @@ async fn main() {
let state = statistics_manager.get_state().await;
stdout()
.write_all(
format!(
"len: {},speed_upload: {}, speed_download: {}, update_direct_speed: {}, download_direct_speed: {}, update_proxy_speed: {}, download_proxy_speed: {}\n",
state.connections,
state.speed_upload,
state.speed_download,
state.direct_upload_speed,
state.direct_download_speed,
state.proxy_upload_speed,
state.proxy_download_speed,
)
.as_bytes(),
)
.await
.unwrap();
// stdout()
// .write_all(
// format!(
// "len: {},speed_upload: {}, speed_download: {}, update_direct_speed: {}, download_direct_speed: {}, update_proxy_speed: {}, download_proxy_speed: {}\n",
// state.connections,
// state.speed_upload,
// state.speed_download,
// state.direct_upload_speed,
// state.direct_download_speed,
// state.proxy_upload_speed,
// state.proxy_download_speed,
// )
// .as_bytes(),
// )
// .await
// .unwrap();
let udp_server = udp_server::UdpServer::global().await;
let buf = serde_json::to_vec(&state).unwrap();
udp_server.publish(&buf).await;
})
};

4
src/statistics.rs
View File

@ -1,10 +1,11 @@
use std::{collections::HashMap, sync::Arc};
use serde::Serialize;
use tokio::sync::{Mutex, OnceCell};
use crate::clash_conn_msg::{ClashConnectionMessage, ClashConnectionsWrapper};
#[derive(Clone)]
#[derive(Clone, Serialize)]
pub struct StatisticsState {
pub connections: usize,
pub download_total: u64,
@ -15,6 +16,7 @@ pub struct StatisticsState {
pub direct_download_speed: u64,
pub proxy_upload_speed: u64,
pub proxy_download_speed: u64,
#[serde(skip)]
connection_map: Arc<Mutex<HashMap<String, ClashConnectionMessage>>>,
}

119
src/udp_server.rs Normal file
View File

@ -0,0 +1,119 @@
use std::{
collections::HashMap,
net::{Ipv4Addr, SocketAddr},
sync::Arc,
};
use log::{error, info};
use tokio::{
net::UdpSocket,
sync::{Mutex, OnceCell},
time::Instant,
};
use clap::Parser;
use crate::Args;
struct Client {
last_seen: Instant,
socket: UdpSocket,
}
#[derive(Clone)]
pub struct UdpServer {
listen_addr: Ipv4Addr,
listen_port: u16,
clients: Arc<Mutex<HashMap<SocketAddr, Client>>>,
}
impl UdpServer {
pub async fn global() -> &'static Self {
static UDP_SERVER: OnceCell<UdpServer> = OnceCell::const_new();
UDP_SERVER
.get_or_init(|| async {
let args = Args::parse();
let listen_addr = Ipv4Addr::new(0, 0, 0, 0);
let listen_port = args.listen_port;
let udp_server = UdpServer::new(listen_addr, listen_port);
let server = udp_server.clone();
tokio::spawn(async move {
if let Err(err) = server.run().await {
error!("Failed to run UDP server: {}", err);
}
});
udp_server
})
.await
}
pub fn new(listen_addr: Ipv4Addr, listen_port: u16) -> Self {
Self {
listen_addr,
listen_port,
clients: Arc::new(Mutex::new(HashMap::new())),
}
}
pub async fn run(&self) -> anyhow::Result<()> {
let mut buf = [0; 1024];
let socket = UdpSocket::bind((self.listen_addr, self.listen_port)).await?;
loop {
info!("Waiting for data");
let (len, addr) = socket.recv_from(&mut buf).await?;
info!("Received data({}) from {}", len, addr);
let mut clients = self.clients.lock().await;
let client = clients.get_mut(&addr);
if client.is_none() {
let socket = UdpSocket::bind((self.listen_addr, 0)).await;
if let Err(err) = socket {
error!("Failed to bind socket: {}", err);
continue;
}
let socket = socket.unwrap();
if let Err(err) = socket.connect(addr).await {
error!("Failed to connect socket: {}", err);
continue;
}
let client = Client {
socket,
last_seen: Instant::now(),
};
clients.insert(addr, client);
} else {
let client = client.unwrap();
client.last_seen = Instant::now();
}
}
}
pub async fn publish(&self, buf: &[u8]) {
let mut to_remove = Vec::new();
let mut clients = self.clients.lock().await;
for (addr, client) in clients.iter() {
if client.last_seen.elapsed().as_secs() > 10 {
to_remove.push(addr.clone());
} else {
if let Err(err) = client.socket.send(buf).await {
error!("Failed to send data to {}: {}", addr, err);
} else {
info!("Sent data to {}", addr);
}
}
}
for addr in to_remove {
clients.remove(&addr);
}
}
}