use crate::io::UnixStreamResource;
use crate::NetPermissions;
use deno_core::error::bad_resource;
use deno_core::error::custom_error;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::AsyncRefCell;
use deno_core::CancelHandle;
use deno_core::CancelTryFuture;
use deno_core::JsBuffer;
use deno_core::OpState;
use deno_core::RcRef;
use deno_core::Resource;
use deno_core::ResourceId;
use serde::Deserialize;
use serde::Serialize;
use std::borrow::Cow;
use std::cell::RefCell;
use std::path::Path;
use std::rc::Rc;
use tokio::net::UnixDatagram;
use tokio::net::UnixListener;
pub use tokio::net::UnixStream;
pub fn into_string(s: std::ffi::OsString) -> Result<String, AnyError> {
s.into_string().map_err(|s| {
let message = format!("File name or path {s:?} is not valid UTF-8");
custom_error("InvalidData", message)
})
}
pub(crate) struct UnixListenerResource {
pub listener: AsyncRefCell<UnixListener>,
cancel: CancelHandle,
}
impl Resource for UnixListenerResource {
fn name(&self) -> Cow<str> {
"unixListener".into()
}
fn close(self: Rc<Self>) {
self.cancel.cancel();
}
}
pub struct UnixDatagramResource {
pub socket: AsyncRefCell<UnixDatagram>,
pub cancel: CancelHandle,
}
impl Resource for UnixDatagramResource {
fn name(&self) -> Cow<str> {
"unixDatagram".into()
}
fn close(self: Rc<Self>) {
self.cancel.cancel();
}
}
#[derive(Serialize)]
pub struct UnixAddr {
pub path: Option<String>,
}
#[derive(Deserialize)]
pub struct UnixListenArgs {
pub path: String,
}
#[op2(async)]
#[serde]
pub async fn op_net_accept_unix(
state: Rc<RefCell<OpState>>,
#[smi] rid: ResourceId,
) -> Result<(ResourceId, Option<String>, Option<String>), AnyError> {
let resource = state
.borrow()
.resource_table
.get::<UnixListenerResource>(rid)
.map_err(|_| bad_resource("Listener has been closed"))?;
let listener = RcRef::map(&resource, |r| &r.listener)
.try_borrow_mut()
.ok_or_else(|| custom_error("Busy", "Listener already in use"))?;
let cancel = RcRef::map(resource, |r| &r.cancel);
let (unix_stream, _socket_addr) = listener
.accept()
.try_or_cancel(cancel)
.await
.map_err(crate::ops::accept_err)?;
let local_addr = unix_stream.local_addr()?;
let remote_addr = unix_stream.peer_addr()?;
let local_addr_path = local_addr.as_pathname().map(pathstring).transpose()?;
let remote_addr_path =
remote_addr.as_pathname().map(pathstring).transpose()?;
let resource = UnixStreamResource::new(unix_stream.into_split());
let mut state = state.borrow_mut();
let rid = state.resource_table.add(resource);
Ok((rid, local_addr_path, remote_addr_path))
}
#[op2(async)]
#[serde]
pub async fn op_net_connect_unix<NP>(
state: Rc<RefCell<OpState>>,
#[string] path: String,
) -> Result<(ResourceId, Option<String>, Option<String>), AnyError>
where
NP: NetPermissions + 'static,
{
let address_path = Path::new(&path);
{
let mut state_ = state.borrow_mut();
state_
.borrow_mut::<NP>()
.check_read(address_path, "Deno.connect()")?;
state_
.borrow_mut::<NP>()
.check_write(address_path, "Deno.connect()")?;
}
let unix_stream = UnixStream::connect(Path::new(&path)).await?;
let local_addr = unix_stream.local_addr()?;
let remote_addr = unix_stream.peer_addr()?;
let local_addr_path = local_addr.as_pathname().map(pathstring).transpose()?;
let remote_addr_path =
remote_addr.as_pathname().map(pathstring).transpose()?;
let mut state_ = state.borrow_mut();
let resource = UnixStreamResource::new(unix_stream.into_split());
let rid = state_.resource_table.add(resource);
Ok((rid, local_addr_path, remote_addr_path))
}
#[op2(async)]
#[serde]
pub async fn op_net_recv_unixpacket(
state: Rc<RefCell<OpState>>,
#[smi] rid: ResourceId,
#[buffer] mut buf: JsBuffer,
) -> Result<(usize, Option<String>), AnyError> {
let resource = state
.borrow()
.resource_table
.get::<UnixDatagramResource>(rid)
.map_err(|_| bad_resource("Socket has been closed"))?;
let socket = RcRef::map(&resource, |r| &r.socket)
.try_borrow_mut()
.ok_or_else(|| custom_error("Busy", "Socket already in use"))?;
let cancel = RcRef::map(resource, |r| &r.cancel);
let (nread, remote_addr) =
socket.recv_from(&mut buf).try_or_cancel(cancel).await?;
let path = remote_addr.as_pathname().map(pathstring).transpose()?;
Ok((nread, path))
}
#[op2(async)]
#[number]
pub async fn op_net_send_unixpacket<NP>(
state: Rc<RefCell<OpState>>,
#[smi] rid: ResourceId,
#[string] path: String,
#[buffer] zero_copy: JsBuffer,
) -> Result<usize, AnyError>
where
NP: NetPermissions + 'static,
{
let address_path = Path::new(&path);
{
let mut s = state.borrow_mut();
s.borrow_mut::<NP>()
.check_write(address_path, "Deno.DatagramConn.send()")?;
}
let resource = state
.borrow()
.resource_table
.get::<UnixDatagramResource>(rid)
.map_err(|_| custom_error("NotConnected", "Socket has been closed"))?;
let socket = RcRef::map(&resource, |r| &r.socket)
.try_borrow_mut()
.ok_or_else(|| custom_error("Busy", "Socket already in use"))?;
let nwritten = socket.send_to(&zero_copy, address_path).await?;
Ok(nwritten)
}
#[op2]
#[serde]
pub fn op_net_listen_unix<NP>(
state: &mut OpState,
#[string] path: String,
#[string] api_name: String,
) -> Result<(ResourceId, Option<String>), AnyError>
where
NP: NetPermissions + 'static,
{
let address_path = Path::new(&path);
let permissions = state.borrow_mut::<NP>();
let api_call_expr = format!("{}()", api_name);
permissions.check_read(address_path, &api_call_expr)?;
permissions.check_write(address_path, &api_call_expr)?;
let listener = UnixListener::bind(address_path)?;
let local_addr = listener.local_addr()?;
let pathname = local_addr.as_pathname().map(pathstring).transpose()?;
let listener_resource = UnixListenerResource {
listener: AsyncRefCell::new(listener),
cancel: Default::default(),
};
let rid = state.resource_table.add(listener_resource);
Ok((rid, pathname))
}
pub fn net_listen_unixpacket<NP>(
state: &mut OpState,
path: String,
) -> Result<(ResourceId, Option<String>), AnyError>
where
NP: NetPermissions + 'static,
{
let address_path = Path::new(&path);
let permissions = state.borrow_mut::<NP>();
permissions.check_read(address_path, "Deno.listenDatagram()")?;
permissions.check_write(address_path, "Deno.listenDatagram()")?;
let socket = UnixDatagram::bind(address_path)?;
let local_addr = socket.local_addr()?;
let pathname = local_addr.as_pathname().map(pathstring).transpose()?;
let datagram_resource = UnixDatagramResource {
socket: AsyncRefCell::new(socket),
cancel: Default::default(),
};
let rid = state.resource_table.add(datagram_resource);
Ok((rid, pathname))
}
#[op2]
#[serde]
pub fn op_net_listen_unixpacket<NP>(
state: &mut OpState,
#[string] path: String,
) -> Result<(ResourceId, Option<String>), AnyError>
where
NP: NetPermissions + 'static,
{
super::check_unstable(state, "Deno.listenDatagram");
net_listen_unixpacket::<NP>(state, path)
}
#[op2]
#[serde]
pub fn op_node_unstable_net_listen_unixpacket<NP>(
state: &mut OpState,
#[string] path: String,
) -> Result<(ResourceId, Option<String>), AnyError>
where
NP: NetPermissions + 'static,
{
net_listen_unixpacket::<NP>(state, path)
}
pub fn pathstring(pathname: &Path) -> Result<String, AnyError> {
into_string(pathname.into())
}