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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use crate::ops::io::StreamResource;
use crate::ops::io::StreamResourceHolder;
use crate::ops::net::AcceptArgs;
use crate::ops::net::ReceiveArgs;
use deno_core::error::bad_resource;
use deno_core::error::AnyError;
use deno_core::futures::future::poll_fn;
use deno_core::serde_json::json;
use deno_core::serde_json::Value;
use deno_core::BufVec;
use deno_core::OpState;
use serde::Deserialize;
use std::cell::RefCell;
use std::fs::remove_file;
use std::os::unix;
use std::path::Path;
use std::rc::Rc;
use std::task::Poll;
use tokio::net::UnixDatagram;
use tokio::net::UnixListener;
pub use tokio::net::UnixStream;
struct UnixListenerResource {
listener: UnixListener,
}
pub struct UnixDatagramResource {
pub socket: UnixDatagram,
pub local_addr: unix::net::SocketAddr,
}
#[derive(Deserialize)]
pub struct UnixListenArgs {
pub path: String,
}
pub(crate) async fn accept_unix(
state: Rc<RefCell<OpState>>,
args: AcceptArgs,
_bufs: BufVec,
) -> Result<Value, AnyError> {
let rid = args.rid as u32;
let accept_fut = poll_fn(|cx| {
let mut state = state.borrow_mut();
let listener_resource = state
.resource_table
.get_mut::<UnixListenerResource>(rid)
.ok_or_else(|| bad_resource("Listener has been closed"))?;
let listener = &mut listener_resource.listener;
use deno_core::futures::StreamExt;
match listener.poll_next_unpin(cx) {
Poll::Ready(Some(stream)) => {
//listener_resource.untrack_task();
Poll::Ready(stream)
}
Poll::Ready(None) => todo!(),
Poll::Pending => {
//listener_resource.track_task(cx)?;
Poll::Pending
}
}
.map_err(AnyError::from)
});
let unix_stream = accept_fut.await?;
let local_addr = unix_stream.local_addr()?;
let remote_addr = unix_stream.peer_addr()?;
let mut state = state.borrow_mut();
let rid = state.resource_table.add(
"unixStream",
Box::new(StreamResourceHolder::new(StreamResource::UnixStream(
unix_stream,
))),
);
Ok(json!({
"rid": rid,
"localAddr": {
"path": local_addr.as_pathname(),
"transport": "unix",
},
"remoteAddr": {
"path": remote_addr.as_pathname(),
"transport": "unix",
}
}))
}
pub(crate) async fn receive_unix_packet(
state: Rc<RefCell<OpState>>,
args: ReceiveArgs,
bufs: BufVec,
) -> Result<Value, AnyError> {
assert_eq!(bufs.len(), 1, "Invalid number of arguments");
let rid = args.rid as u32;
let mut buf = bufs.into_iter().next().unwrap();
let mut state = state.borrow_mut();
let resource = state
.resource_table
.get_mut::<UnixDatagramResource>(rid)
.ok_or_else(|| bad_resource("Socket has been closed"))?;
let (size, remote_addr) = resource.socket.recv_from(&mut buf).await?;
Ok(json!({
"size": size,
"remoteAddr": {
"path": remote_addr.as_pathname(),
"transport": "unixpacket",
}
}))
}
pub fn listen_unix(
state: &mut OpState,
addr: &Path,
) -> Result<(u32, unix::net::SocketAddr), AnyError> {
if addr.exists() {
remove_file(&addr).unwrap();
}
let listener = UnixListener::bind(&addr)?;
let local_addr = listener.local_addr()?;
let listener_resource = UnixListenerResource { listener };
let rid = state
.resource_table
.add("unixListener", Box::new(listener_resource));
Ok((rid, local_addr))
}
pub fn listen_unix_packet(
state: &mut OpState,
addr: &Path,
) -> Result<(u32, unix::net::SocketAddr), AnyError> {
if addr.exists() {
remove_file(&addr).unwrap();
}
let socket = UnixDatagram::bind(&addr)?;
let local_addr = socket.local_addr()?;
let datagram_resource = UnixDatagramResource {
socket,
local_addr: local_addr.clone(),
};
let rid = state
.resource_table
.add("unixDatagram", Box::new(datagram_resource));
Ok((rid, local_addr))
}
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