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feat: clone from https://github.com/dndx/uip

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Cargo.toml Normal file
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[package]
name = "uip"
version = "0.1.6"
edition = "2021"
authors = ["Datong Sun <dndx@idndx.com>"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/dndx/uip"
readme = "README.md"
description = """
A tool to quickly determine the public IP address of a machine behind
NAT with the help of STUN servers.
"""
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
clap = { version = "4.2", features = ["cargo"] }
log = "0.4"
stun = "0.4"
tokio = "1.27"
pretty_env_logger = "0.5"
[profile.release]
strip = true
opt-level = "z" # Optimize for size.
lto = true
panic = "abort"
codegen-units = 1

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LICENSE-APACHE Normal file
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Copyright 2021-2022 Datong Sun (dndx@idndx.com)
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MIT License
Copyright (c) 2021-2022 Datong Sun (dndx@idndx.com)
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DEALINGS IN THE SOFTWARE.

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README.md
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# uip # uip
Clone from: https://github.com/dndx/uip A tool to quickly determine the public IP address of a machine behind
NAT with the help of STUN servers.
# Overview
This tool is as simple as it sounds, when executed, it outputs the current machine's
public IP address by sending a binding request to the STUN server and displaying the
`XOR-MAPPED-ADDRESS` or `MAPPED-ADDRESS` attribute returned by the STUN server.
# Install
Either download pre-built binaries from the release page, or use `cargo install uip` to install it.
# Usage
```
$ uip -h
A tool to quickly determine the public IP address of a machine behind
NAT with the help of STUN servers.
Usage: uip [OPTIONS] [HOST:PORT]
Arguments:
[HOST:PORT] STUN server host and port. If PORT is omitted, it defaults to 3478 [default: stun.cloudflare.com]
Options:
-4, --ipv4-only Do not use IPv6 addresses when connecting to STUN server
-h, --help Print help
-V, --version Print version
```
## Default port (UDP 3478):
```
$ uip stun.cloudflare.com
203.0.113.1
```
## Custom port:
```
$ uip stun.l.google.com:19302
203.0.113.1
```
This program use return code `0` to indicate success and a valid IP has been returned.
All other return code indicates error.
The program timeouts after `5` seconds in case a response can not be received.
To debug, run it with `RUST_LOG=debug uip`.
# Public STUN servers
* `stun.cloudflare.com`
* `stun.l.google.com`
* `stun1.l.google.com`
* `stun2.l.google.com`
* `stun3.l.google.com`
* `stun4.l.google.com`
* `stun.syncthing.net`
* `stun.xten.com`
## Servers in China
* `stun.qq.com`
* `stun.miwifi.com`
* `stun.chat.bilibili.com`
[public-stun-list.txt](https://gist.github.com/mondain/b0ec1cf5f60ae726202e) (Unverified)
# Credits
This script was modified from the [`stun_client.rs`](https://github.com/webrtc-rs/webrtc/blob/master/stun/examples/stun_client.rs)
example of the [WebRTC.rs project](https://github.com/webrtc-rs/webrtc) by Rain Liu <yliu@webrtc.rs>.
`uip` added better error handling, more friendly command line interface and fallback to `MAPPED-ADDRESS` attribute
in case `XOR-MAPPED-ADDRESS` can not be found since some servers that I tested does not return `XOR-MAPPED-ADDRESS`.
# License
Copyright 2023 Datong Sun (dndx@idndx.com)
Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
[https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)> or the MIT license
<LICENSE-MIT or [https://opensource.org/licenses/MIT](https://opensource.org/licenses/MIT)>, at your
option. Files in the project may not be
copied, modified, or distributed except according to those terms.

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use log::info;
use stun::addr::*;
use stun::agent::*;
use stun::client::*;
use stun::message::*;
use stun::xoraddr::*;
use stun::Error;
use clap::{arg, command, Arg, ArgAction};
use std::sync::Arc;
use tokio::net::{lookup_host, UdpSocket};
#[tokio::main]
async fn main() -> Result<(), Error> {
pretty_env_logger::init();
let matches = command!() // requires `cargo` feature
.arg(
arg!([SERVER] "STUN server host and port. If PORT is omitted, it defaults to 3478")
.value_name("HOST:PORT")
.default_value("stun.cloudflare.com"),
)
.arg(
Arg::new("ipv4_only")
.long("ipv4-only")
.short('4')
.required(false)
.help("Do not use IPv6 addresses when connecting to STUN server")
.action(ArgAction::SetTrue),
)
.get_matches();
let (handler_tx, mut handler_rx) = tokio::sync::mpsc::unbounded_channel();
let mut server = matches.get_one::<String>("SERVER").unwrap().clone();
if server.as_str().starts_with('[') {
// IPv6 literal
if !server.contains("]:") {
server.push_str(":3478");
}
} else if !server.contains(':') {
server.push_str(":3478");
}
let ipv4_only = matches.get_flag("ipv4_only");
let addr = lookup_host(server)
.await
.expect("failed to parse/resolve server address and port number")
.find(|addr| !ipv4_only || addr.is_ipv4())
.expect("unable to resolve remote host name");
info!("Server address is: {}", addr);
let conn = UdpSocket::bind(if addr.is_ipv4() {
"0.0.0.0:0"
} else {
"[::]:0"
})
.await?;
conn.connect(addr).await?;
let mut client = ClientBuilder::new().with_conn(Arc::new(conn)).build()?;
let mut msg = Message::new();
msg.build(&[Box::<TransactionId>::default(), Box::new(BINDING_REQUEST)])?;
client.send(&msg, Some(Arc::new(handler_tx))).await?;
if let Some(event) = handler_rx.recv().await {
let msg = event.event_body?;
let mut xor_addr = XorMappedAddress::default();
if xor_addr.get_from(&msg).is_ok() {
println!("{}", xor_addr.ip);
} else {
info!("XOR-MAPPED-ADDRESS attribute does not exist, trying MAPPED-ADDRESS instead");
let mut addr = MappedAddress::default();
addr.get_from(&msg)?;
println!("{}", addr.ip);
}
}
client.close().await?;
Ok(())
}