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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use super::dispatch_flatbuffers::serialize_response;
use super::utils::*;
use crate::deno_error;
use crate::msg;
use crate::resolve_addr::resolve_addr;
use crate::resources;
use crate::resources::Resource;
use crate::state::ThreadSafeState;
use crate::tokio_util;
use deno::*;
use flatbuffers::FlatBufferBuilder;
use futures::Future;
use std;
use std::convert::From;
use std::net::Shutdown;
use tokio;
use tokio::net::TcpListener;
use tokio::net::TcpStream;
pub fn op_accept(
_state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
let inner = base.inner_as_accept().unwrap();
let server_rid = inner.rid();
match resources::lookup(server_rid) {
None => Err(deno_error::bad_resource()),
Some(server_resource) => {
let op = tokio_util::accept(server_resource)
.map_err(ErrBox::from)
.and_then(move |(tcp_stream, _socket_addr)| {
new_conn(cmd_id, tcp_stream)
});
if base.sync() {
let buf = op.wait()?;
Ok(Op::Sync(buf))
} else {
Ok(Op::Async(Box::new(op)))
}
}
}
}
pub fn op_dial(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
let inner = base.inner_as_dial().unwrap();
let network = inner.network().unwrap();
assert_eq!(network, "tcp"); // TODO Support others.
let address = inner.address().unwrap();
state.check_net(&address)?;
let op = resolve_addr(address).and_then(move |addr| {
TcpStream::connect(&addr)
.map_err(ErrBox::from)
.and_then(move |tcp_stream| new_conn(cmd_id, tcp_stream))
});
if base.sync() {
let buf = op.wait()?;
Ok(Op::Sync(buf))
} else {
Ok(Op::Async(Box::new(op)))
}
}
pub fn op_shutdown(
_state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_shutdown().unwrap();
let rid = inner.rid();
let how = inner.how();
match resources::lookup(rid) {
None => Err(deno_error::bad_resource()),
Some(mut resource) => {
let shutdown_mode = match how {
0 => Shutdown::Read,
1 => Shutdown::Write,
_ => unimplemented!(),
};
blocking(base.sync(), move || {
// Use UFCS for disambiguation
Resource::shutdown(&mut resource, shutdown_mode)?;
Ok(empty_buf())
})
}
}
}
pub fn op_listen(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
let inner = base.inner_as_listen().unwrap();
let network = inner.network().unwrap();
assert_eq!(network, "tcp");
let address = inner.address().unwrap();
state.check_net(&address)?;
let addr = resolve_addr(address).wait()?;
let listener = TcpListener::bind(&addr)?;
let resource = resources::add_tcp_listener(listener);
let builder = &mut FlatBufferBuilder::new();
let inner =
msg::ListenRes::create(builder, &msg::ListenResArgs { rid: resource.rid });
let response_buf = serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::ListenRes,
..Default::default()
},
);
ok_buf(response_buf)
}
fn new_conn(cmd_id: u32, tcp_stream: TcpStream) -> Result<Buf, ErrBox> {
let tcp_stream_resource = resources::add_tcp_stream(tcp_stream);
// TODO forward socket_addr to client.
let builder = &mut FlatBufferBuilder::new();
let inner = msg::NewConn::create(
builder,
&msg::NewConnArgs {
rid: tcp_stream_resource.rid,
..Default::default()
},
);
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::NewConn,
..Default::default()
},
))
}
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