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|
||||
checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||
|
||||
[[package]]
|
||||
name = "xml-rs"
|
||||
version = "0.8.19"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0fcb9cbac069e033553e8bb871be2fbdffcab578eb25bd0f7c508cedc6dcd75a"
|
||||
|
||||
[[package]]
|
||||
name = "xmltree"
|
||||
version = "0.10.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d7d8a75eaf6557bb84a65ace8609883db44a29951042ada9b393151532e41fcb"
|
||||
dependencies = [
|
||||
"xml-rs",
|
||||
]
|
||||
|
|
|
|||
|
|
@ -10,3 +10,8 @@ categories = ["network-programming", "game-development"]
|
|||
|
||||
[lints]
|
||||
workspace = true
|
||||
|
||||
[dependencies]
|
||||
local-ip-address = "0.5.7"
|
||||
base64 = "0.21.7"
|
||||
igd = "0.12.1"
|
||||
|
|
|
|||
|
|
@ -2,7 +2,14 @@
|
|||
|
||||
use std::collections::LinkedList;
|
||||
use std::io::{self, Read, Write};
|
||||
use std::net::{TcpListener, TcpStream, ToSocketAddrs};
|
||||
use std::net::{IpAddr, Ipv4Addr, SocketAddr, SocketAddrV4, TcpListener, TcpStream, ToSocketAddrs};
|
||||
|
||||
use base64::alphabet::Alphabet;
|
||||
use base64::engine::general_purpose::NO_PAD;
|
||||
use base64::engine::GeneralPurpose;
|
||||
use base64::prelude::*;
|
||||
use igd::{Gateway, PortMappingProtocol};
|
||||
use local_ip_address::local_ip;
|
||||
|
||||
/// A non-blocking tcp connection.
|
||||
///
|
||||
|
|
@ -79,10 +86,28 @@ impl Connection {
|
|||
})
|
||||
}
|
||||
|
||||
/// Creates a new [Connection] that connects to the given address.
|
||||
/// Creates a new [Connection] that connects to the given connection string.
|
||||
///
|
||||
/// This function is blocking.
|
||||
pub fn connect(address: impl ToSocketAddrs) -> io::Result<Self> {
|
||||
pub fn connect(connection_string: &str) -> io::Result<Self> {
|
||||
let data = BASE64_URL_SAFE_NO_PAD
|
||||
.decode(connection_string)
|
||||
.map_err(io::Error::other)?;
|
||||
if data.len() != 6 {
|
||||
return Err(io::Error::new(
|
||||
io::ErrorKind::InvalidInput,
|
||||
format!("invalid connection string: {}", connection_string),
|
||||
));
|
||||
}
|
||||
let address = SocketAddrV4::new(
|
||||
Ipv4Addr::new(data[0], data[1], data[2], data[3]),
|
||||
u16::from_ne_bytes(data[4..=5].try_into().map_err(|_| {
|
||||
io::Error::new(
|
||||
io::ErrorKind::InvalidInput,
|
||||
format!("invalid connection string: {}", connection_string),
|
||||
)
|
||||
})?),
|
||||
);
|
||||
Self::new(TcpStream::connect(address)?)
|
||||
}
|
||||
|
||||
|
|
@ -230,7 +255,7 @@ impl Connection {
|
|||
/// use bevnet::{Connection, Listener};
|
||||
///
|
||||
/// # fn main() -> io::Result<()> {
|
||||
/// let listener = Listener::bind("127.0.0.1:23732")?;
|
||||
/// let listener = Listener::new()?;
|
||||
/// let mut connection = Connection::connect("127.0.0.1:23732")?;
|
||||
///
|
||||
/// // The accept operation is not blocking. So we need to loop here.
|
||||
|
|
@ -244,14 +269,32 @@ impl Connection {
|
|||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
pub struct Listener(TcpListener);
|
||||
pub struct Listener(TcpListener, Gateway, SocketAddrV4);
|
||||
|
||||
impl Listener {
|
||||
/// Creates a new listener.
|
||||
pub fn bind(addr: impl ToSocketAddrs) -> io::Result<Listener> {
|
||||
let listener = TcpListener::bind(addr)?;
|
||||
pub fn new() -> io::Result<Self> {
|
||||
let local_address = match local_ip().map_err(io::Error::other)? {
|
||||
IpAddr::V4(address) => address,
|
||||
IpAddr::V6(_) => unreachable!(),
|
||||
};
|
||||
let listener = TcpListener::bind(SocketAddrV4::new(local_address, 0))?;
|
||||
let gateway = igd::search_gateway(Default::default()).map_err(io::Error::other)?;
|
||||
let opened_port = gateway
|
||||
.add_any_port(
|
||||
PortMappingProtocol::TCP,
|
||||
SocketAddrV4::new(local_address, listener.local_addr()?.port()),
|
||||
3600 * 24,
|
||||
"bevnet",
|
||||
)
|
||||
.map_err(io::Error::other)?;
|
||||
let external_address = gateway.get_external_ip().map_err(io::Error::other)?;
|
||||
listener.set_nonblocking(true)?;
|
||||
Ok(Listener(listener))
|
||||
Ok(Self(
|
||||
listener,
|
||||
gateway,
|
||||
SocketAddrV4::new(external_address, opened_port),
|
||||
))
|
||||
}
|
||||
|
||||
/// Accepts a new [Connection].
|
||||
|
|
@ -265,4 +308,21 @@ impl Listener {
|
|||
Err(e) => Err(e),
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns the connection string that can be used to connect to th
|
||||
/// listener.
|
||||
pub fn connection_string(&self) -> String {
|
||||
let mut data = Vec::with_capacity(24);
|
||||
data.extend(self.2.ip().octets());
|
||||
data.extend(self.2.port().to_ne_bytes());
|
||||
BASE64_URL_SAFE_NO_PAD.encode(&data)
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for Listener {
|
||||
fn drop(&mut self) {
|
||||
self.1
|
||||
.remove_port(PortMappingProtocol::TCP, self.2.port())
|
||||
.ok();
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue