c3860804ff
Just polishing the UI a bit more. One drawback of this, though, is that if you _do_ have a big nickname or server name, with this current solution, you won't be able to see it. Ideally, we should be able to hover over it and see it in a tooltip, but the `div` still doesn't support that out of the box. | Main modal | Modal header | |--------|--------| | <img width="1136" alt="Screenshot 2024-10-23 at 12 49 18" src="https://github.com/user-attachments/assets/ed5f0222-faa1-49bd-b249-2f22497566d8"> | <img width="1136" alt="Screenshot 2024-10-23 at 12 49 23" src="https://github.com/user-attachments/assets/5a464b12-99e8-4934-aa6a-c9c4c40ea4d4"> | Release Notes: - N/A
2106 lines
71 KiB
Rust
2106 lines
71 KiB
Rust
use crate::{
|
|
json_log::LogRecord,
|
|
protocol::{
|
|
message_len_from_buffer, read_message_with_len, write_message, MessageId, MESSAGE_LEN_SIZE,
|
|
},
|
|
proxy::ProxyLaunchError,
|
|
};
|
|
use anyhow::{anyhow, Context as _, Result};
|
|
use async_trait::async_trait;
|
|
use collections::HashMap;
|
|
use futures::{
|
|
channel::{
|
|
mpsc::{self, Sender, UnboundedReceiver, UnboundedSender},
|
|
oneshot,
|
|
},
|
|
future::BoxFuture,
|
|
select, select_biased, AsyncReadExt as _, Future, FutureExt as _, StreamExt as _,
|
|
};
|
|
use gpui::{
|
|
AppContext, AsyncAppContext, Context, EventEmitter, Model, ModelContext, SemanticVersion, Task,
|
|
WeakModel,
|
|
};
|
|
use parking_lot::Mutex;
|
|
use rpc::{
|
|
proto::{self, build_typed_envelope, Envelope, EnvelopedMessage, PeerId, RequestMessage},
|
|
AnyProtoClient, EntityMessageSubscriber, ProtoClient, ProtoMessageHandlerSet, RpcError,
|
|
};
|
|
use smol::{
|
|
fs,
|
|
process::{self, Child, Stdio},
|
|
};
|
|
use std::{
|
|
any::TypeId,
|
|
collections::VecDeque,
|
|
ffi::OsStr,
|
|
fmt,
|
|
ops::ControlFlow,
|
|
path::{Path, PathBuf},
|
|
sync::{
|
|
atomic::{AtomicU32, Ordering::SeqCst},
|
|
Arc, Weak,
|
|
},
|
|
time::{Duration, Instant, SystemTime, UNIX_EPOCH},
|
|
};
|
|
use tempfile::TempDir;
|
|
use util::ResultExt;
|
|
|
|
#[derive(
|
|
Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, serde::Serialize, serde::Deserialize,
|
|
)]
|
|
pub struct SshProjectId(pub u64);
|
|
|
|
#[derive(Clone)]
|
|
pub struct SshSocket {
|
|
connection_options: SshConnectionOptions,
|
|
socket_path: PathBuf,
|
|
}
|
|
|
|
#[derive(Debug, Default, Clone, PartialEq, Eq)]
|
|
pub struct SshConnectionOptions {
|
|
pub host: String,
|
|
pub username: Option<String>,
|
|
pub port: Option<u16>,
|
|
pub password: Option<String>,
|
|
pub args: Option<Vec<String>>,
|
|
}
|
|
|
|
impl SshConnectionOptions {
|
|
pub fn parse_command_line(input: &str) -> Result<Self> {
|
|
let input = input.trim_start_matches("ssh ");
|
|
let mut hostname: Option<String> = None;
|
|
let mut username: Option<String> = None;
|
|
let mut port: Option<u16> = None;
|
|
let mut args = Vec::new();
|
|
|
|
// disallowed: -E, -e, -F, -f, -G, -g, -M, -N, -n, -O, -q, -S, -s, -T, -t, -V, -v, -W
|
|
const ALLOWED_OPTS: &[&str] = &[
|
|
"-4", "-6", "-A", "-a", "-C", "-K", "-k", "-X", "-x", "-Y", "-y",
|
|
];
|
|
const ALLOWED_ARGS: &[&str] = &[
|
|
"-B", "-b", "-c", "-D", "-I", "-i", "-J", "-L", "-l", "-m", "-o", "-P", "-p", "-R",
|
|
"-w",
|
|
];
|
|
|
|
let mut tokens = shlex::split(input)
|
|
.ok_or_else(|| anyhow!("invalid input"))?
|
|
.into_iter();
|
|
|
|
'outer: while let Some(arg) = tokens.next() {
|
|
if ALLOWED_OPTS.contains(&(&arg as &str)) {
|
|
args.push(arg.to_string());
|
|
continue;
|
|
}
|
|
if arg == "-p" {
|
|
port = tokens.next().and_then(|arg| arg.parse().ok());
|
|
continue;
|
|
} else if let Some(p) = arg.strip_prefix("-p") {
|
|
port = p.parse().ok();
|
|
continue;
|
|
}
|
|
if arg == "-l" {
|
|
username = tokens.next();
|
|
continue;
|
|
} else if let Some(l) = arg.strip_prefix("-l") {
|
|
username = Some(l.to_string());
|
|
continue;
|
|
}
|
|
for a in ALLOWED_ARGS {
|
|
if arg == *a {
|
|
args.push(arg);
|
|
if let Some(next) = tokens.next() {
|
|
args.push(next);
|
|
}
|
|
continue 'outer;
|
|
} else if arg.starts_with(a) {
|
|
args.push(arg);
|
|
continue 'outer;
|
|
}
|
|
}
|
|
if arg.starts_with("-") || hostname.is_some() {
|
|
anyhow::bail!("unsupported argument: {:?}", arg);
|
|
}
|
|
let mut input = &arg as &str;
|
|
if let Some((u, rest)) = input.split_once('@') {
|
|
input = rest;
|
|
username = Some(u.to_string());
|
|
}
|
|
if let Some((rest, p)) = input.split_once(':') {
|
|
input = rest;
|
|
port = p.parse().ok()
|
|
}
|
|
hostname = Some(input.to_string())
|
|
}
|
|
|
|
let Some(hostname) = hostname else {
|
|
anyhow::bail!("missing hostname");
|
|
};
|
|
|
|
Ok(Self {
|
|
host: hostname.to_string(),
|
|
username: username.clone(),
|
|
port,
|
|
password: None,
|
|
args: Some(args),
|
|
})
|
|
}
|
|
|
|
pub fn ssh_url(&self) -> String {
|
|
let mut result = String::from("ssh://");
|
|
if let Some(username) = &self.username {
|
|
result.push_str(username);
|
|
result.push('@');
|
|
}
|
|
result.push_str(&self.host);
|
|
if let Some(port) = self.port {
|
|
result.push(':');
|
|
result.push_str(&port.to_string());
|
|
}
|
|
result
|
|
}
|
|
|
|
pub fn additional_args(&self) -> Option<&Vec<String>> {
|
|
self.args.as_ref()
|
|
}
|
|
|
|
fn scp_url(&self) -> String {
|
|
if let Some(username) = &self.username {
|
|
format!("{}@{}", username, self.host)
|
|
} else {
|
|
self.host.clone()
|
|
}
|
|
}
|
|
|
|
pub fn connection_string(&self) -> String {
|
|
let host = if let Some(username) = &self.username {
|
|
format!("{}@{}", username, self.host)
|
|
} else {
|
|
self.host.clone()
|
|
};
|
|
if let Some(port) = &self.port {
|
|
format!("{}:{}", host, port)
|
|
} else {
|
|
host
|
|
}
|
|
}
|
|
|
|
// Uniquely identifies dev server projects on a remote host. Needs to be
|
|
// stable for the same dev server project.
|
|
pub fn remote_server_identifier(&self) -> String {
|
|
let mut identifier = format!("dev-server-{:?}", self.host);
|
|
if let Some(username) = self.username.as_ref() {
|
|
identifier.push('-');
|
|
identifier.push_str(&username);
|
|
}
|
|
identifier
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, Debug)]
|
|
pub struct SshPlatform {
|
|
pub os: &'static str,
|
|
pub arch: &'static str,
|
|
}
|
|
|
|
impl SshPlatform {
|
|
pub fn triple(&self) -> Option<String> {
|
|
Some(format!(
|
|
"{}-{}",
|
|
self.arch,
|
|
match self.os {
|
|
"linux" => "unknown-linux-gnu",
|
|
"macos" => "apple-darwin",
|
|
_ => return None,
|
|
}
|
|
))
|
|
}
|
|
}
|
|
|
|
pub enum ServerBinary {
|
|
LocalBinary(PathBuf),
|
|
ReleaseUrl { url: String, body: String },
|
|
}
|
|
|
|
pub trait SshClientDelegate: Send + Sync {
|
|
fn ask_password(
|
|
&self,
|
|
prompt: String,
|
|
cx: &mut AsyncAppContext,
|
|
) -> oneshot::Receiver<Result<String>>;
|
|
fn remote_server_binary_path(
|
|
&self,
|
|
platform: SshPlatform,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<PathBuf>;
|
|
fn get_server_binary(
|
|
&self,
|
|
platform: SshPlatform,
|
|
cx: &mut AsyncAppContext,
|
|
) -> oneshot::Receiver<Result<(ServerBinary, SemanticVersion)>>;
|
|
fn set_status(&self, status: Option<&str>, cx: &mut AsyncAppContext);
|
|
}
|
|
|
|
impl SshSocket {
|
|
fn ssh_command<S: AsRef<OsStr>>(&self, program: S) -> process::Command {
|
|
let mut command = process::Command::new("ssh");
|
|
self.ssh_options(&mut command)
|
|
.arg(self.connection_options.ssh_url())
|
|
.arg(program);
|
|
command
|
|
}
|
|
|
|
fn ssh_options<'a>(&self, command: &'a mut process::Command) -> &'a mut process::Command {
|
|
command
|
|
.stdin(Stdio::piped())
|
|
.stdout(Stdio::piped())
|
|
.stderr(Stdio::piped())
|
|
.args(["-o", "ControlMaster=no", "-o"])
|
|
.arg(format!("ControlPath={}", self.socket_path.display()))
|
|
}
|
|
|
|
fn ssh_args(&self) -> Vec<String> {
|
|
vec![
|
|
"-o".to_string(),
|
|
"ControlMaster=no".to_string(),
|
|
"-o".to_string(),
|
|
format!("ControlPath={}", self.socket_path.display()),
|
|
self.connection_options.ssh_url(),
|
|
]
|
|
}
|
|
}
|
|
|
|
async fn run_cmd(command: &mut process::Command) -> Result<String> {
|
|
let output = command.output().await?;
|
|
if output.status.success() {
|
|
Ok(String::from_utf8_lossy(&output.stdout).to_string())
|
|
} else {
|
|
Err(anyhow!(
|
|
"failed to run command: {}",
|
|
String::from_utf8_lossy(&output.stderr)
|
|
))
|
|
}
|
|
}
|
|
|
|
const MAX_MISSED_HEARTBEATS: usize = 5;
|
|
const HEARTBEAT_INTERVAL: Duration = Duration::from_secs(5);
|
|
const HEARTBEAT_TIMEOUT: Duration = Duration::from_secs(5);
|
|
|
|
const MAX_RECONNECT_ATTEMPTS: usize = 3;
|
|
|
|
enum State {
|
|
Connecting,
|
|
Connected {
|
|
ssh_connection: Box<dyn SshRemoteProcess>,
|
|
delegate: Arc<dyn SshClientDelegate>,
|
|
|
|
multiplex_task: Task<Result<()>>,
|
|
heartbeat_task: Task<Result<()>>,
|
|
},
|
|
HeartbeatMissed {
|
|
missed_heartbeats: usize,
|
|
|
|
ssh_connection: Box<dyn SshRemoteProcess>,
|
|
delegate: Arc<dyn SshClientDelegate>,
|
|
|
|
multiplex_task: Task<Result<()>>,
|
|
heartbeat_task: Task<Result<()>>,
|
|
},
|
|
Reconnecting,
|
|
ReconnectFailed {
|
|
ssh_connection: Box<dyn SshRemoteProcess>,
|
|
delegate: Arc<dyn SshClientDelegate>,
|
|
|
|
error: anyhow::Error,
|
|
attempts: usize,
|
|
},
|
|
ReconnectExhausted,
|
|
ServerNotRunning,
|
|
}
|
|
|
|
impl fmt::Display for State {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
match self {
|
|
Self::Connecting => write!(f, "connecting"),
|
|
Self::Connected { .. } => write!(f, "connected"),
|
|
Self::Reconnecting => write!(f, "reconnecting"),
|
|
Self::ReconnectFailed { .. } => write!(f, "reconnect failed"),
|
|
Self::ReconnectExhausted => write!(f, "reconnect exhausted"),
|
|
Self::HeartbeatMissed { .. } => write!(f, "heartbeat missed"),
|
|
Self::ServerNotRunning { .. } => write!(f, "server not running"),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl State {
|
|
fn ssh_connection(&self) -> Option<&dyn SshRemoteProcess> {
|
|
match self {
|
|
Self::Connected { ssh_connection, .. } => Some(ssh_connection.as_ref()),
|
|
Self::HeartbeatMissed { ssh_connection, .. } => Some(ssh_connection.as_ref()),
|
|
Self::ReconnectFailed { ssh_connection, .. } => Some(ssh_connection.as_ref()),
|
|
_ => None,
|
|
}
|
|
}
|
|
|
|
fn can_reconnect(&self) -> bool {
|
|
match self {
|
|
Self::Connected { .. }
|
|
| Self::HeartbeatMissed { .. }
|
|
| Self::ReconnectFailed { .. } => true,
|
|
State::Connecting
|
|
| State::Reconnecting
|
|
| State::ReconnectExhausted
|
|
| State::ServerNotRunning => false,
|
|
}
|
|
}
|
|
|
|
fn is_reconnect_failed(&self) -> bool {
|
|
matches!(self, Self::ReconnectFailed { .. })
|
|
}
|
|
|
|
fn is_reconnect_exhausted(&self) -> bool {
|
|
matches!(self, Self::ReconnectExhausted { .. })
|
|
}
|
|
|
|
fn is_server_not_running(&self) -> bool {
|
|
matches!(self, Self::ServerNotRunning)
|
|
}
|
|
|
|
fn is_reconnecting(&self) -> bool {
|
|
matches!(self, Self::Reconnecting { .. })
|
|
}
|
|
|
|
fn heartbeat_recovered(self) -> Self {
|
|
match self {
|
|
Self::HeartbeatMissed {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
..
|
|
} => Self::Connected {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
},
|
|
_ => self,
|
|
}
|
|
}
|
|
|
|
fn heartbeat_missed(self) -> Self {
|
|
match self {
|
|
Self::Connected {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
} => Self::HeartbeatMissed {
|
|
missed_heartbeats: 1,
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
},
|
|
Self::HeartbeatMissed {
|
|
missed_heartbeats,
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
} => Self::HeartbeatMissed {
|
|
missed_heartbeats: missed_heartbeats + 1,
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
},
|
|
_ => self,
|
|
}
|
|
}
|
|
}
|
|
|
|
/// The state of the ssh connection.
|
|
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
|
pub enum ConnectionState {
|
|
Connecting,
|
|
Connected,
|
|
HeartbeatMissed,
|
|
Reconnecting,
|
|
Disconnected,
|
|
}
|
|
|
|
impl From<&State> for ConnectionState {
|
|
fn from(value: &State) -> Self {
|
|
match value {
|
|
State::Connecting => Self::Connecting,
|
|
State::Connected { .. } => Self::Connected,
|
|
State::Reconnecting | State::ReconnectFailed { .. } => Self::Reconnecting,
|
|
State::HeartbeatMissed { .. } => Self::HeartbeatMissed,
|
|
State::ReconnectExhausted => Self::Disconnected,
|
|
State::ServerNotRunning => Self::Disconnected,
|
|
}
|
|
}
|
|
}
|
|
|
|
pub struct SshRemoteClient {
|
|
client: Arc<ChannelClient>,
|
|
unique_identifier: String,
|
|
connection_options: SshConnectionOptions,
|
|
state: Arc<Mutex<Option<State>>>,
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub enum SshRemoteEvent {
|
|
Disconnected,
|
|
}
|
|
|
|
impl EventEmitter<SshRemoteEvent> for SshRemoteClient {}
|
|
|
|
impl SshRemoteClient {
|
|
pub fn new(
|
|
unique_identifier: String,
|
|
connection_options: SshConnectionOptions,
|
|
cancellation: oneshot::Receiver<()>,
|
|
delegate: Arc<dyn SshClientDelegate>,
|
|
cx: &AppContext,
|
|
) -> Task<Result<Option<Model<Self>>>> {
|
|
cx.spawn(|mut cx| async move {
|
|
let success = Box::pin(async move {
|
|
let (outgoing_tx, outgoing_rx) = mpsc::unbounded::<Envelope>();
|
|
let (incoming_tx, incoming_rx) = mpsc::unbounded::<Envelope>();
|
|
let (connection_activity_tx, connection_activity_rx) = mpsc::channel::<()>(1);
|
|
|
|
let client =
|
|
cx.update(|cx| ChannelClient::new(incoming_rx, outgoing_tx, cx, "client"))?;
|
|
let this = cx.new_model(|_| Self {
|
|
client: client.clone(),
|
|
unique_identifier: unique_identifier.clone(),
|
|
connection_options: connection_options.clone(),
|
|
state: Arc::new(Mutex::new(Some(State::Connecting))),
|
|
})?;
|
|
|
|
let (ssh_connection, io_task) = Self::establish_connection(
|
|
unique_identifier,
|
|
false,
|
|
connection_options,
|
|
incoming_tx,
|
|
outgoing_rx,
|
|
connection_activity_tx,
|
|
delegate.clone(),
|
|
&mut cx,
|
|
)
|
|
.await?;
|
|
|
|
let multiplex_task = Self::monitor(this.downgrade(), io_task, &cx);
|
|
|
|
if let Err(error) = client.ping(HEARTBEAT_TIMEOUT).await {
|
|
log::error!("failed to establish connection: {}", error);
|
|
return Err(error);
|
|
}
|
|
|
|
let heartbeat_task =
|
|
Self::heartbeat(this.downgrade(), connection_activity_rx, &mut cx);
|
|
|
|
this.update(&mut cx, |this, _| {
|
|
*this.state.lock() = Some(State::Connected {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
});
|
|
})?;
|
|
|
|
Ok(Some(this))
|
|
});
|
|
|
|
select! {
|
|
_ = cancellation.fuse() => {
|
|
Ok(None)
|
|
}
|
|
result = success.fuse() => result
|
|
}
|
|
})
|
|
}
|
|
|
|
pub fn shutdown_processes<T: RequestMessage>(
|
|
&self,
|
|
shutdown_request: Option<T>,
|
|
) -> Option<impl Future<Output = ()>> {
|
|
let state = self.state.lock().take()?;
|
|
log::info!("shutting down ssh processes");
|
|
|
|
let State::Connected {
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
ssh_connection,
|
|
delegate,
|
|
} = state
|
|
else {
|
|
return None;
|
|
};
|
|
|
|
let client = self.client.clone();
|
|
|
|
Some(async move {
|
|
if let Some(shutdown_request) = shutdown_request {
|
|
client.send(shutdown_request).log_err();
|
|
// We wait 50ms instead of waiting for a response, because
|
|
// waiting for a response would require us to wait on the main thread
|
|
// which we want to avoid in an `on_app_quit` callback.
|
|
smol::Timer::after(Duration::from_millis(50)).await;
|
|
}
|
|
|
|
// Drop `multiplex_task` because it owns our ssh_proxy_process, which is a
|
|
// child of master_process.
|
|
drop(multiplex_task);
|
|
// Now drop the rest of state, which kills master process.
|
|
drop(heartbeat_task);
|
|
drop(ssh_connection);
|
|
drop(delegate);
|
|
})
|
|
}
|
|
|
|
fn reconnect(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
|
|
let mut lock = self.state.lock();
|
|
|
|
let can_reconnect = lock
|
|
.as_ref()
|
|
.map(|state| state.can_reconnect())
|
|
.unwrap_or(false);
|
|
if !can_reconnect {
|
|
let error = if let Some(state) = lock.as_ref() {
|
|
format!("invalid state, cannot reconnect while in state {state}")
|
|
} else {
|
|
"no state set".to_string()
|
|
};
|
|
log::info!("aborting reconnect, because not in state that allows reconnecting");
|
|
return Err(anyhow!(error));
|
|
}
|
|
|
|
let state = lock.take().unwrap();
|
|
let (attempts, mut ssh_connection, delegate) = match state {
|
|
State::Connected {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
}
|
|
| State::HeartbeatMissed {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task,
|
|
..
|
|
} => {
|
|
drop(multiplex_task);
|
|
drop(heartbeat_task);
|
|
(0, ssh_connection, delegate)
|
|
}
|
|
State::ReconnectFailed {
|
|
attempts,
|
|
ssh_connection,
|
|
delegate,
|
|
..
|
|
} => (attempts, ssh_connection, delegate),
|
|
State::Connecting
|
|
| State::Reconnecting
|
|
| State::ReconnectExhausted
|
|
| State::ServerNotRunning => unreachable!(),
|
|
};
|
|
|
|
let attempts = attempts + 1;
|
|
if attempts > MAX_RECONNECT_ATTEMPTS {
|
|
log::error!(
|
|
"Failed to reconnect to after {} attempts, giving up",
|
|
MAX_RECONNECT_ATTEMPTS
|
|
);
|
|
drop(lock);
|
|
self.set_state(State::ReconnectExhausted, cx);
|
|
return Ok(());
|
|
}
|
|
drop(lock);
|
|
|
|
self.set_state(State::Reconnecting, cx);
|
|
|
|
log::info!("Trying to reconnect to ssh server... Attempt {}", attempts);
|
|
|
|
let identifier = self.unique_identifier.clone();
|
|
let client = self.client.clone();
|
|
let reconnect_task = cx.spawn(|this, mut cx| async move {
|
|
macro_rules! failed {
|
|
($error:expr, $attempts:expr, $ssh_connection:expr, $delegate:expr) => {
|
|
return State::ReconnectFailed {
|
|
error: anyhow!($error),
|
|
attempts: $attempts,
|
|
ssh_connection: $ssh_connection,
|
|
delegate: $delegate,
|
|
};
|
|
};
|
|
}
|
|
|
|
if let Err(error) = ssh_connection
|
|
.kill()
|
|
.await
|
|
.context("Failed to kill ssh process")
|
|
{
|
|
failed!(error, attempts, ssh_connection, delegate);
|
|
};
|
|
|
|
let connection_options = ssh_connection.connection_options();
|
|
|
|
let (outgoing_tx, outgoing_rx) = mpsc::unbounded::<Envelope>();
|
|
let (incoming_tx, incoming_rx) = mpsc::unbounded::<Envelope>();
|
|
let (connection_activity_tx, connection_activity_rx) = mpsc::channel::<()>(1);
|
|
|
|
let (ssh_connection, io_task) = match Self::establish_connection(
|
|
identifier,
|
|
true,
|
|
connection_options,
|
|
incoming_tx,
|
|
outgoing_rx,
|
|
connection_activity_tx,
|
|
delegate.clone(),
|
|
&mut cx,
|
|
)
|
|
.await
|
|
{
|
|
Ok((ssh_connection, ssh_process)) => (ssh_connection, ssh_process),
|
|
Err(error) => {
|
|
failed!(error, attempts, ssh_connection, delegate);
|
|
}
|
|
};
|
|
|
|
let multiplex_task = Self::monitor(this.clone(), io_task, &cx);
|
|
client.reconnect(incoming_rx, outgoing_tx, &cx);
|
|
|
|
if let Err(error) = client.resync(HEARTBEAT_TIMEOUT).await {
|
|
failed!(error, attempts, ssh_connection, delegate);
|
|
};
|
|
|
|
State::Connected {
|
|
ssh_connection,
|
|
delegate,
|
|
multiplex_task,
|
|
heartbeat_task: Self::heartbeat(this.clone(), connection_activity_rx, &mut cx),
|
|
}
|
|
});
|
|
|
|
cx.spawn(|this, mut cx| async move {
|
|
let new_state = reconnect_task.await;
|
|
this.update(&mut cx, |this, cx| {
|
|
this.try_set_state(cx, |old_state| {
|
|
if old_state.is_reconnecting() {
|
|
match &new_state {
|
|
State::Connecting
|
|
| State::Reconnecting { .. }
|
|
| State::HeartbeatMissed { .. }
|
|
| State::ServerNotRunning => {}
|
|
State::Connected { .. } => {
|
|
log::info!("Successfully reconnected");
|
|
}
|
|
State::ReconnectFailed {
|
|
error, attempts, ..
|
|
} => {
|
|
log::error!(
|
|
"Reconnect attempt {} failed: {:?}. Starting new attempt...",
|
|
attempts,
|
|
error
|
|
);
|
|
}
|
|
State::ReconnectExhausted => {
|
|
log::error!("Reconnect attempt failed and all attempts exhausted");
|
|
}
|
|
}
|
|
Some(new_state)
|
|
} else {
|
|
None
|
|
}
|
|
});
|
|
|
|
if this.state_is(State::is_reconnect_failed) {
|
|
this.reconnect(cx)
|
|
} else if this.state_is(State::is_reconnect_exhausted) {
|
|
Ok(())
|
|
} else {
|
|
log::debug!("State has transition from Reconnecting into new state while attempting reconnect.");
|
|
Ok(())
|
|
}
|
|
})
|
|
})
|
|
.detach_and_log_err(cx);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn heartbeat(
|
|
this: WeakModel<Self>,
|
|
mut connection_activity_rx: mpsc::Receiver<()>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Task<Result<()>> {
|
|
let Ok(client) = this.update(cx, |this, _| this.client.clone()) else {
|
|
return Task::ready(Err(anyhow!("SshRemoteClient lost")));
|
|
};
|
|
|
|
cx.spawn(|mut cx| {
|
|
let this = this.clone();
|
|
async move {
|
|
let mut missed_heartbeats = 0;
|
|
|
|
let keepalive_timer = cx.background_executor().timer(HEARTBEAT_INTERVAL).fuse();
|
|
futures::pin_mut!(keepalive_timer);
|
|
|
|
loop {
|
|
select_biased! {
|
|
result = connection_activity_rx.next().fuse() => {
|
|
if result.is_none() {
|
|
log::warn!("ssh heartbeat: connection activity channel has been dropped. stopping.");
|
|
return Ok(());
|
|
}
|
|
|
|
if missed_heartbeats != 0 {
|
|
missed_heartbeats = 0;
|
|
this.update(&mut cx, |this, mut cx| {
|
|
this.handle_heartbeat_result(missed_heartbeats, &mut cx)
|
|
})?;
|
|
}
|
|
}
|
|
_ = keepalive_timer => {
|
|
log::debug!("Sending heartbeat to server...");
|
|
|
|
let result = select_biased! {
|
|
_ = connection_activity_rx.next().fuse() => {
|
|
Ok(())
|
|
}
|
|
ping_result = client.ping(HEARTBEAT_TIMEOUT).fuse() => {
|
|
ping_result
|
|
}
|
|
};
|
|
|
|
if result.is_err() {
|
|
missed_heartbeats += 1;
|
|
log::warn!(
|
|
"No heartbeat from server after {:?}. Missed heartbeat {} out of {}.",
|
|
HEARTBEAT_TIMEOUT,
|
|
missed_heartbeats,
|
|
MAX_MISSED_HEARTBEATS
|
|
);
|
|
} else if missed_heartbeats != 0 {
|
|
missed_heartbeats = 0;
|
|
} else {
|
|
continue;
|
|
}
|
|
|
|
let result = this.update(&mut cx, |this, mut cx| {
|
|
this.handle_heartbeat_result(missed_heartbeats, &mut cx)
|
|
})?;
|
|
if result.is_break() {
|
|
return Ok(());
|
|
}
|
|
}
|
|
}
|
|
|
|
keepalive_timer.set(cx.background_executor().timer(HEARTBEAT_INTERVAL).fuse());
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
fn handle_heartbeat_result(
|
|
&mut self,
|
|
missed_heartbeats: usize,
|
|
cx: &mut ModelContext<Self>,
|
|
) -> ControlFlow<()> {
|
|
let state = self.state.lock().take().unwrap();
|
|
let next_state = if missed_heartbeats > 0 {
|
|
state.heartbeat_missed()
|
|
} else {
|
|
state.heartbeat_recovered()
|
|
};
|
|
|
|
self.set_state(next_state, cx);
|
|
|
|
if missed_heartbeats >= MAX_MISSED_HEARTBEATS {
|
|
log::error!(
|
|
"Missed last {} heartbeats. Reconnecting...",
|
|
missed_heartbeats
|
|
);
|
|
|
|
self.reconnect(cx)
|
|
.context("failed to start reconnect process after missing heartbeats")
|
|
.log_err();
|
|
ControlFlow::Break(())
|
|
} else {
|
|
ControlFlow::Continue(())
|
|
}
|
|
}
|
|
|
|
fn multiplex(
|
|
mut ssh_proxy_process: Child,
|
|
incoming_tx: UnboundedSender<Envelope>,
|
|
mut outgoing_rx: UnboundedReceiver<Envelope>,
|
|
mut connection_activity_tx: Sender<()>,
|
|
cx: &AsyncAppContext,
|
|
) -> Task<Result<i32>> {
|
|
let mut child_stderr = ssh_proxy_process.stderr.take().unwrap();
|
|
let mut child_stdout = ssh_proxy_process.stdout.take().unwrap();
|
|
let mut child_stdin = ssh_proxy_process.stdin.take().unwrap();
|
|
|
|
let mut stdin_buffer = Vec::new();
|
|
let mut stdout_buffer = Vec::new();
|
|
let mut stderr_buffer = Vec::new();
|
|
let mut stderr_offset = 0;
|
|
|
|
let stdin_task = cx.background_executor().spawn(async move {
|
|
while let Some(outgoing) = outgoing_rx.next().await {
|
|
write_message(&mut child_stdin, &mut stdin_buffer, outgoing).await?;
|
|
}
|
|
anyhow::Ok(())
|
|
});
|
|
|
|
let stdout_task = cx.background_executor().spawn({
|
|
let mut connection_activity_tx = connection_activity_tx.clone();
|
|
async move {
|
|
loop {
|
|
stdout_buffer.resize(MESSAGE_LEN_SIZE, 0);
|
|
let len = child_stdout.read(&mut stdout_buffer).await?;
|
|
|
|
if len == 0 {
|
|
return anyhow::Ok(());
|
|
}
|
|
|
|
if len < MESSAGE_LEN_SIZE {
|
|
child_stdout.read_exact(&mut stdout_buffer[len..]).await?;
|
|
}
|
|
|
|
let message_len = message_len_from_buffer(&stdout_buffer);
|
|
let envelope =
|
|
read_message_with_len(&mut child_stdout, &mut stdout_buffer, message_len)
|
|
.await?;
|
|
connection_activity_tx.try_send(()).ok();
|
|
incoming_tx.unbounded_send(envelope).ok();
|
|
}
|
|
}
|
|
});
|
|
|
|
let stderr_task: Task<anyhow::Result<()>> = cx.background_executor().spawn(async move {
|
|
loop {
|
|
stderr_buffer.resize(stderr_offset + 1024, 0);
|
|
|
|
let len = child_stderr
|
|
.read(&mut stderr_buffer[stderr_offset..])
|
|
.await?;
|
|
if len == 0 {
|
|
return anyhow::Ok(());
|
|
}
|
|
|
|
stderr_offset += len;
|
|
let mut start_ix = 0;
|
|
while let Some(ix) = stderr_buffer[start_ix..stderr_offset]
|
|
.iter()
|
|
.position(|b| b == &b'\n')
|
|
{
|
|
let line_ix = start_ix + ix;
|
|
let content = &stderr_buffer[start_ix..line_ix];
|
|
start_ix = line_ix + 1;
|
|
if let Ok(record) = serde_json::from_slice::<LogRecord>(content) {
|
|
record.log(log::logger())
|
|
} else {
|
|
eprintln!("(remote) {}", String::from_utf8_lossy(content));
|
|
}
|
|
}
|
|
stderr_buffer.drain(0..start_ix);
|
|
stderr_offset -= start_ix;
|
|
|
|
connection_activity_tx.try_send(()).ok();
|
|
}
|
|
});
|
|
|
|
cx.spawn(|_| async move {
|
|
let result = futures::select! {
|
|
result = stdin_task.fuse() => {
|
|
result.context("stdin")
|
|
}
|
|
result = stdout_task.fuse() => {
|
|
result.context("stdout")
|
|
}
|
|
result = stderr_task.fuse() => {
|
|
result.context("stderr")
|
|
}
|
|
};
|
|
|
|
let status = ssh_proxy_process.status().await?.code().unwrap_or(1);
|
|
match result {
|
|
Ok(_) => Ok(status),
|
|
Err(error) => Err(error),
|
|
}
|
|
})
|
|
}
|
|
|
|
fn monitor(
|
|
this: WeakModel<Self>,
|
|
io_task: Task<Result<i32>>,
|
|
cx: &AsyncAppContext,
|
|
) -> Task<Result<()>> {
|
|
cx.spawn(|mut cx| async move {
|
|
let result = io_task.await;
|
|
|
|
match result {
|
|
Ok(exit_code) => {
|
|
if let Some(error) = ProxyLaunchError::from_exit_code(exit_code) {
|
|
match error {
|
|
ProxyLaunchError::ServerNotRunning => {
|
|
log::error!("failed to reconnect because server is not running");
|
|
this.update(&mut cx, |this, cx| {
|
|
this.set_state(State::ServerNotRunning, cx);
|
|
})?;
|
|
}
|
|
}
|
|
} else if exit_code > 0 {
|
|
log::error!("proxy process terminated unexpectedly");
|
|
this.update(&mut cx, |this, cx| {
|
|
this.reconnect(cx).ok();
|
|
})?;
|
|
}
|
|
}
|
|
Err(error) => {
|
|
log::warn!("ssh io task died with error: {:?}. reconnecting...", error);
|
|
this.update(&mut cx, |this, cx| {
|
|
this.reconnect(cx).ok();
|
|
})?;
|
|
}
|
|
}
|
|
|
|
Ok(())
|
|
})
|
|
}
|
|
|
|
fn state_is(&self, check: impl FnOnce(&State) -> bool) -> bool {
|
|
self.state.lock().as_ref().map_or(false, check)
|
|
}
|
|
|
|
fn try_set_state(
|
|
&self,
|
|
cx: &mut ModelContext<Self>,
|
|
map: impl FnOnce(&State) -> Option<State>,
|
|
) {
|
|
let mut lock = self.state.lock();
|
|
let new_state = lock.as_ref().and_then(map);
|
|
|
|
if let Some(new_state) = new_state {
|
|
lock.replace(new_state);
|
|
cx.notify();
|
|
}
|
|
}
|
|
|
|
fn set_state(&self, state: State, cx: &mut ModelContext<Self>) {
|
|
log::info!("setting state to '{}'", &state);
|
|
|
|
let is_reconnect_exhausted = state.is_reconnect_exhausted();
|
|
let is_server_not_running = state.is_server_not_running();
|
|
self.state.lock().replace(state);
|
|
|
|
if is_reconnect_exhausted || is_server_not_running {
|
|
cx.emit(SshRemoteEvent::Disconnected);
|
|
}
|
|
cx.notify();
|
|
}
|
|
|
|
#[allow(clippy::too_many_arguments)]
|
|
async fn establish_connection(
|
|
unique_identifier: String,
|
|
reconnect: bool,
|
|
connection_options: SshConnectionOptions,
|
|
incoming_tx: UnboundedSender<Envelope>,
|
|
outgoing_rx: UnboundedReceiver<Envelope>,
|
|
connection_activity_tx: Sender<()>,
|
|
delegate: Arc<dyn SshClientDelegate>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<(Box<dyn SshRemoteProcess>, Task<Result<i32>>)> {
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
if let Some(fake) = fake::SshRemoteConnection::new(&connection_options) {
|
|
let io_task = fake::SshRemoteConnection::multiplex(
|
|
fake.connection_options(),
|
|
incoming_tx,
|
|
outgoing_rx,
|
|
connection_activity_tx,
|
|
cx,
|
|
)
|
|
.await;
|
|
return Ok((fake, io_task));
|
|
}
|
|
|
|
let ssh_connection =
|
|
SshRemoteConnection::new(connection_options, delegate.clone(), cx).await?;
|
|
|
|
let platform = ssh_connection.query_platform().await?;
|
|
let remote_binary_path = delegate.remote_server_binary_path(platform, cx)?;
|
|
if !reconnect {
|
|
ssh_connection
|
|
.ensure_server_binary(&delegate, &remote_binary_path, platform, cx)
|
|
.await?;
|
|
}
|
|
|
|
let socket = ssh_connection.socket.clone();
|
|
run_cmd(socket.ssh_command(&remote_binary_path).arg("version")).await?;
|
|
|
|
delegate.set_status(Some("Starting proxy"), cx);
|
|
|
|
let mut start_proxy_command = format!(
|
|
"RUST_LOG={} RUST_BACKTRACE={} {:?} proxy --identifier {}",
|
|
std::env::var("RUST_LOG").unwrap_or_default(),
|
|
std::env::var("RUST_BACKTRACE").unwrap_or_default(),
|
|
remote_binary_path,
|
|
unique_identifier,
|
|
);
|
|
if reconnect {
|
|
start_proxy_command.push_str(" --reconnect");
|
|
}
|
|
|
|
let ssh_proxy_process = socket
|
|
.ssh_command(start_proxy_command)
|
|
// IMPORTANT: we kill this process when we drop the task that uses it.
|
|
.kill_on_drop(true)
|
|
.spawn()
|
|
.context("failed to spawn remote server")?;
|
|
|
|
let io_task = Self::multiplex(
|
|
ssh_proxy_process,
|
|
incoming_tx,
|
|
outgoing_rx,
|
|
connection_activity_tx,
|
|
&cx,
|
|
);
|
|
|
|
Ok((Box::new(ssh_connection), io_task))
|
|
}
|
|
|
|
pub fn subscribe_to_entity<E: 'static>(&self, remote_id: u64, entity: &Model<E>) {
|
|
self.client.subscribe_to_entity(remote_id, entity);
|
|
}
|
|
|
|
pub fn ssh_args(&self) -> Option<Vec<String>> {
|
|
self.state
|
|
.lock()
|
|
.as_ref()
|
|
.and_then(|state| state.ssh_connection())
|
|
.map(|ssh_connection| ssh_connection.ssh_args())
|
|
}
|
|
|
|
pub fn proto_client(&self) -> AnyProtoClient {
|
|
self.client.clone().into()
|
|
}
|
|
|
|
pub fn connection_string(&self) -> String {
|
|
self.connection_options.connection_string()
|
|
}
|
|
|
|
pub fn connection_options(&self) -> SshConnectionOptions {
|
|
self.connection_options.clone()
|
|
}
|
|
|
|
pub fn connection_state(&self) -> ConnectionState {
|
|
self.state
|
|
.lock()
|
|
.as_ref()
|
|
.map(ConnectionState::from)
|
|
.unwrap_or(ConnectionState::Disconnected)
|
|
}
|
|
|
|
pub fn is_disconnected(&self) -> bool {
|
|
self.connection_state() == ConnectionState::Disconnected
|
|
}
|
|
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
pub fn simulate_disconnect(&self, client_cx: &mut AppContext) -> Task<()> {
|
|
let port = self.connection_options().port.unwrap();
|
|
client_cx.spawn(|cx| async move {
|
|
let (channel, server_cx) = cx
|
|
.update_global(|c: &mut fake::ServerConnections, _| c.get(port))
|
|
.unwrap();
|
|
|
|
let (outgoing_tx, _) = mpsc::unbounded::<Envelope>();
|
|
let (_, incoming_rx) = mpsc::unbounded::<Envelope>();
|
|
channel.reconnect(incoming_rx, outgoing_tx, &server_cx);
|
|
})
|
|
}
|
|
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
pub fn fake_server(
|
|
client_cx: &mut gpui::TestAppContext,
|
|
server_cx: &mut gpui::TestAppContext,
|
|
) -> (u16, Arc<ChannelClient>) {
|
|
use gpui::BorrowAppContext;
|
|
let (outgoing_tx, _) = mpsc::unbounded::<Envelope>();
|
|
let (_, incoming_rx) = mpsc::unbounded::<Envelope>();
|
|
let server_client =
|
|
server_cx.update(|cx| ChannelClient::new(incoming_rx, outgoing_tx, cx, "fake-server"));
|
|
let port = client_cx.update(|cx| {
|
|
cx.update_default_global(|c: &mut fake::ServerConnections, _| {
|
|
c.push(server_client.clone(), server_cx.to_async())
|
|
})
|
|
});
|
|
(port, server_client)
|
|
}
|
|
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
pub async fn fake_client(port: u16, client_cx: &mut gpui::TestAppContext) -> Model<Self> {
|
|
let (_tx, rx) = oneshot::channel();
|
|
client_cx
|
|
.update(|cx| {
|
|
Self::new(
|
|
"fake".to_string(),
|
|
SshConnectionOptions {
|
|
host: "<fake>".to_string(),
|
|
port: Some(port),
|
|
..Default::default()
|
|
},
|
|
rx,
|
|
Arc::new(fake::Delegate),
|
|
cx,
|
|
)
|
|
})
|
|
.await
|
|
.unwrap()
|
|
.unwrap()
|
|
}
|
|
}
|
|
|
|
impl From<SshRemoteClient> for AnyProtoClient {
|
|
fn from(client: SshRemoteClient) -> Self {
|
|
AnyProtoClient::new(client.client.clone())
|
|
}
|
|
}
|
|
|
|
#[async_trait]
|
|
trait SshRemoteProcess: Send + Sync {
|
|
async fn kill(&mut self) -> Result<()>;
|
|
fn ssh_args(&self) -> Vec<String>;
|
|
fn connection_options(&self) -> SshConnectionOptions;
|
|
}
|
|
|
|
struct SshRemoteConnection {
|
|
socket: SshSocket,
|
|
master_process: process::Child,
|
|
_temp_dir: TempDir,
|
|
}
|
|
|
|
impl Drop for SshRemoteConnection {
|
|
fn drop(&mut self) {
|
|
if let Err(error) = self.master_process.kill() {
|
|
log::error!("failed to kill SSH master process: {}", error);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[async_trait]
|
|
impl SshRemoteProcess for SshRemoteConnection {
|
|
async fn kill(&mut self) -> Result<()> {
|
|
self.master_process.kill()?;
|
|
|
|
self.master_process.status().await?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn ssh_args(&self) -> Vec<String> {
|
|
self.socket.ssh_args()
|
|
}
|
|
|
|
fn connection_options(&self) -> SshConnectionOptions {
|
|
self.socket.connection_options.clone()
|
|
}
|
|
}
|
|
|
|
impl SshRemoteConnection {
|
|
#[cfg(not(unix))]
|
|
async fn new(
|
|
_connection_options: SshConnectionOptions,
|
|
_delegate: Arc<dyn SshClientDelegate>,
|
|
_cx: &mut AsyncAppContext,
|
|
) -> Result<Self> {
|
|
Err(anyhow!("ssh is not supported on this platform"))
|
|
}
|
|
|
|
#[cfg(unix)]
|
|
async fn new(
|
|
connection_options: SshConnectionOptions,
|
|
delegate: Arc<dyn SshClientDelegate>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<Self> {
|
|
use futures::AsyncWriteExt as _;
|
|
use futures::{io::BufReader, AsyncBufReadExt as _};
|
|
use smol::{fs::unix::PermissionsExt as _, net::unix::UnixListener};
|
|
use util::ResultExt as _;
|
|
|
|
delegate.set_status(Some("Connecting"), cx);
|
|
|
|
let url = connection_options.ssh_url();
|
|
let temp_dir = tempfile::Builder::new()
|
|
.prefix("zed-ssh-session")
|
|
.tempdir()?;
|
|
|
|
// Create a domain socket listener to handle requests from the askpass program.
|
|
let askpass_socket = temp_dir.path().join("askpass.sock");
|
|
let (askpass_opened_tx, askpass_opened_rx) = oneshot::channel::<()>();
|
|
let listener =
|
|
UnixListener::bind(&askpass_socket).context("failed to create askpass socket")?;
|
|
|
|
let askpass_task = cx.spawn({
|
|
let delegate = delegate.clone();
|
|
|mut cx| async move {
|
|
let mut askpass_opened_tx = Some(askpass_opened_tx);
|
|
|
|
while let Ok((mut stream, _)) = listener.accept().await {
|
|
if let Some(askpass_opened_tx) = askpass_opened_tx.take() {
|
|
askpass_opened_tx.send(()).ok();
|
|
}
|
|
let mut buffer = Vec::new();
|
|
let mut reader = BufReader::new(&mut stream);
|
|
if reader.read_until(b'\0', &mut buffer).await.is_err() {
|
|
buffer.clear();
|
|
}
|
|
let password_prompt = String::from_utf8_lossy(&buffer);
|
|
if let Some(password) = delegate
|
|
.ask_password(password_prompt.to_string(), &mut cx)
|
|
.await
|
|
.context("failed to get ssh password")
|
|
.and_then(|p| p)
|
|
.log_err()
|
|
{
|
|
stream.write_all(password.as_bytes()).await.log_err();
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
// Create an askpass script that communicates back to this process.
|
|
let askpass_script = format!(
|
|
"{shebang}\n{print_args} | nc -U {askpass_socket} 2> /dev/null \n",
|
|
askpass_socket = askpass_socket.display(),
|
|
print_args = "printf '%s\\0' \"$@\"",
|
|
shebang = "#!/bin/sh",
|
|
);
|
|
let askpass_script_path = temp_dir.path().join("askpass.sh");
|
|
fs::write(&askpass_script_path, askpass_script).await?;
|
|
fs::set_permissions(&askpass_script_path, std::fs::Permissions::from_mode(0o755)).await?;
|
|
|
|
// Start the master SSH process, which does not do anything except for establish
|
|
// the connection and keep it open, allowing other ssh commands to reuse it
|
|
// via a control socket.
|
|
let socket_path = temp_dir.path().join("ssh.sock");
|
|
let mut master_process = process::Command::new("ssh")
|
|
.stdin(Stdio::null())
|
|
.stdout(Stdio::piped())
|
|
.stderr(Stdio::piped())
|
|
.env("SSH_ASKPASS_REQUIRE", "force")
|
|
.env("SSH_ASKPASS", &askpass_script_path)
|
|
.args(connection_options.additional_args().unwrap_or(&Vec::new()))
|
|
.args([
|
|
"-N",
|
|
"-o",
|
|
"ControlPersist=no",
|
|
"-o",
|
|
"ControlMaster=yes",
|
|
"-o",
|
|
])
|
|
.arg(format!("ControlPath={}", socket_path.display()))
|
|
.arg(&url)
|
|
.spawn()?;
|
|
|
|
// Wait for this ssh process to close its stdout, indicating that authentication
|
|
// has completed.
|
|
let stdout = master_process.stdout.as_mut().unwrap();
|
|
let mut output = Vec::new();
|
|
let connection_timeout = Duration::from_secs(10);
|
|
|
|
let result = select_biased! {
|
|
_ = askpass_opened_rx.fuse() => {
|
|
// If the askpass script has opened, that means the user is typing
|
|
// their password, in which case we don't want to timeout anymore,
|
|
// since we know a connection has been established.
|
|
stdout.read_to_end(&mut output).await?;
|
|
Ok(())
|
|
}
|
|
result = stdout.read_to_end(&mut output).fuse() => {
|
|
result?;
|
|
Ok(())
|
|
}
|
|
_ = futures::FutureExt::fuse(smol::Timer::after(connection_timeout)) => {
|
|
Err(anyhow!("Exceeded {:?} timeout trying to connect to host", connection_timeout))
|
|
}
|
|
};
|
|
|
|
if let Err(e) = result {
|
|
return Err(e.context("Failed to connect to host"));
|
|
}
|
|
|
|
drop(askpass_task);
|
|
|
|
if master_process.try_status()?.is_some() {
|
|
output.clear();
|
|
let mut stderr = master_process.stderr.take().unwrap();
|
|
stderr.read_to_end(&mut output).await?;
|
|
|
|
let error_message = format!(
|
|
"failed to connect: {}",
|
|
String::from_utf8_lossy(&output).trim()
|
|
);
|
|
Err(anyhow!(error_message))?;
|
|
}
|
|
|
|
Ok(Self {
|
|
socket: SshSocket {
|
|
connection_options,
|
|
socket_path,
|
|
},
|
|
master_process,
|
|
_temp_dir: temp_dir,
|
|
})
|
|
}
|
|
|
|
async fn ensure_server_binary(
|
|
&self,
|
|
delegate: &Arc<dyn SshClientDelegate>,
|
|
dst_path: &Path,
|
|
platform: SshPlatform,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<()> {
|
|
let lock_file = dst_path.with_extension("lock");
|
|
let timestamp = SystemTime::now()
|
|
.duration_since(UNIX_EPOCH)
|
|
.unwrap()
|
|
.as_secs();
|
|
let lock_content = timestamp.to_string();
|
|
|
|
let lock_stale_age = Duration::from_secs(10 * 60);
|
|
let max_wait_time = Duration::from_secs(10 * 60);
|
|
let check_interval = Duration::from_secs(5);
|
|
let start_time = Instant::now();
|
|
|
|
loop {
|
|
let lock_acquired = self.create_lock_file(&lock_file, &lock_content).await?;
|
|
if lock_acquired {
|
|
let result = self
|
|
.update_server_binary_if_needed(delegate, dst_path, platform, cx)
|
|
.await;
|
|
|
|
self.remove_lock_file(&lock_file).await.ok();
|
|
|
|
return result;
|
|
} else {
|
|
if let Ok(is_stale) = self.is_lock_stale(&lock_file, &lock_stale_age).await {
|
|
if is_stale {
|
|
self.remove_lock_file(&lock_file).await?;
|
|
continue;
|
|
} else {
|
|
if start_time.elapsed() > max_wait_time {
|
|
return Err(anyhow!("Timeout waiting for lock to be released"));
|
|
}
|
|
log::info!(
|
|
"Found lockfile: {:?}. Will check again in {:?}",
|
|
lock_file,
|
|
check_interval
|
|
);
|
|
delegate.set_status(
|
|
Some("Waiting for another Zed instance to finish uploading binary"),
|
|
cx,
|
|
);
|
|
smol::Timer::after(check_interval).await;
|
|
continue;
|
|
}
|
|
} else {
|
|
// Unable to check lock, assume it's valid and wait
|
|
if start_time.elapsed() > max_wait_time {
|
|
return Err(anyhow!("Timeout waiting for lock to be released"));
|
|
}
|
|
smol::Timer::after(check_interval).await;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
async fn create_lock_file(&self, lock_file: &Path, content: &str) -> Result<bool> {
|
|
let parent_dir = lock_file
|
|
.parent()
|
|
.ok_or_else(|| anyhow!("Lock file path has no parent directory"))?;
|
|
|
|
// Be mindful of the escaping here: we need to make sure that we have quotes
|
|
// inside the string, so that `sh -c` gets a quoted string passed to it.
|
|
let script = format!(
|
|
"\"mkdir -p '{0}' && [ ! -f '{1}' ] && echo '{2}' > '{1}' && echo 'created' || echo 'exists'\"",
|
|
parent_dir.display(),
|
|
lock_file.display(),
|
|
content
|
|
);
|
|
|
|
let output = run_cmd(self.socket.ssh_command("sh").arg("-c").arg(&script))
|
|
.await
|
|
.with_context(|| format!("failed to create a lock file at {:?}", lock_file))?;
|
|
|
|
Ok(output.trim() == "created")
|
|
}
|
|
|
|
async fn is_lock_stale(&self, lock_file: &Path, max_age: &Duration) -> Result<bool> {
|
|
let threshold = max_age.as_secs();
|
|
|
|
// Be mindful of the escaping here: we need to make sure that we have quotes
|
|
// inside the string, so that `sh -c` gets a quoted string passed to it.
|
|
let script = format!(
|
|
"\"[ -f '{0}' ] && [ $(( $(date +%s) - $(date -r '{0}' +%s) )) -gt {1} ] && echo 'stale' || echo 'recent'\"",
|
|
lock_file.display(),
|
|
threshold
|
|
);
|
|
|
|
let output = run_cmd(self.socket.ssh_command("sh").arg("-c").arg(script))
|
|
.await
|
|
.with_context(|| {
|
|
format!("failed to check whether lock file {:?} is stale", lock_file)
|
|
})?;
|
|
|
|
Ok(output.trim() == "stale")
|
|
}
|
|
|
|
async fn remove_lock_file(&self, lock_file: &Path) -> Result<()> {
|
|
run_cmd(self.socket.ssh_command("rm").arg("-f").arg(lock_file))
|
|
.await
|
|
.context("failed to remove lock file")?;
|
|
Ok(())
|
|
}
|
|
|
|
async fn update_server_binary_if_needed(
|
|
&self,
|
|
delegate: &Arc<dyn SshClientDelegate>,
|
|
dst_path: &Path,
|
|
platform: SshPlatform,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<()> {
|
|
if std::env::var("ZED_USE_CACHED_REMOTE_SERVER").is_ok() {
|
|
if let Ok(installed_version) =
|
|
run_cmd(self.socket.ssh_command(dst_path).arg("version")).await
|
|
{
|
|
log::info!("using cached server binary version {}", installed_version);
|
|
return Ok(());
|
|
}
|
|
}
|
|
|
|
let (binary, version) = delegate.get_server_binary(platform, cx).await??;
|
|
|
|
let mut server_binary_exists = false;
|
|
if !server_binary_exists && cfg!(not(debug_assertions)) {
|
|
if let Ok(installed_version) =
|
|
run_cmd(self.socket.ssh_command(dst_path).arg("version")).await
|
|
{
|
|
if installed_version.trim() == version.to_string() {
|
|
server_binary_exists = true;
|
|
}
|
|
log::info!("checked remote server binary for version. latest version: {}. remote server version: {}", version.to_string(), installed_version.trim());
|
|
}
|
|
}
|
|
|
|
if server_binary_exists {
|
|
log::info!("remote development server already present",);
|
|
return Ok(());
|
|
}
|
|
|
|
match binary {
|
|
ServerBinary::LocalBinary(src_path) => {
|
|
self.upload_local_server_binary(&src_path, dst_path, delegate, cx)
|
|
.await
|
|
}
|
|
ServerBinary::ReleaseUrl { url, body } => {
|
|
self.download_binary_on_server(&url, &body, dst_path, delegate, cx)
|
|
.await
|
|
}
|
|
}
|
|
}
|
|
|
|
async fn download_binary_on_server(
|
|
&self,
|
|
url: &str,
|
|
body: &str,
|
|
dst_path: &Path,
|
|
delegate: &Arc<dyn SshClientDelegate>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<()> {
|
|
let mut dst_path_gz = dst_path.to_path_buf();
|
|
dst_path_gz.set_extension("gz");
|
|
|
|
if let Some(parent) = dst_path.parent() {
|
|
run_cmd(self.socket.ssh_command("mkdir").arg("-p").arg(parent)).await?;
|
|
}
|
|
|
|
delegate.set_status(Some("Downloading remote development server on host"), cx);
|
|
|
|
let script = format!(
|
|
r#"
|
|
if command -v wget >/dev/null 2>&1; then
|
|
wget --max-redirect=5 --method=GET --header="Content-Type: application/json" --body-data='{}' '{}' -O '{}' && echo "wget"
|
|
elif command -v curl >/dev/null 2>&1; then
|
|
curl -L -X GET -H "Content-Type: application/json" -d '{}' '{}' -o '{}' && echo "curl"
|
|
else
|
|
echo "Neither curl nor wget is available" >&2
|
|
exit 1
|
|
fi
|
|
"#,
|
|
body.replace("'", r#"\'"#),
|
|
url,
|
|
dst_path_gz.display(),
|
|
body.replace("'", r#"\'"#),
|
|
url,
|
|
dst_path_gz.display(),
|
|
);
|
|
|
|
let output = run_cmd(self.socket.ssh_command("bash").arg("-c").arg(script))
|
|
.await
|
|
.context("Failed to download server binary")?;
|
|
|
|
if !output.contains("curl") && !output.contains("wget") {
|
|
return Err(anyhow!("Failed to download server binary: {}", output));
|
|
}
|
|
|
|
self.extract_server_binary(dst_path, &dst_path_gz, delegate, cx)
|
|
.await
|
|
}
|
|
|
|
async fn upload_local_server_binary(
|
|
&self,
|
|
src_path: &Path,
|
|
dst_path: &Path,
|
|
delegate: &Arc<dyn SshClientDelegate>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<()> {
|
|
let mut dst_path_gz = dst_path.to_path_buf();
|
|
dst_path_gz.set_extension("gz");
|
|
|
|
if let Some(parent) = dst_path.parent() {
|
|
run_cmd(self.socket.ssh_command("mkdir").arg("-p").arg(parent)).await?;
|
|
}
|
|
|
|
let src_stat = fs::metadata(&src_path).await?;
|
|
let size = src_stat.len();
|
|
|
|
let t0 = Instant::now();
|
|
delegate.set_status(Some("Uploading remote development server"), cx);
|
|
log::info!("uploading remote development server ({}kb)", size / 1024);
|
|
self.upload_file(&src_path, &dst_path_gz)
|
|
.await
|
|
.context("failed to upload server binary")?;
|
|
log::info!("uploaded remote development server in {:?}", t0.elapsed());
|
|
|
|
self.extract_server_binary(dst_path, &dst_path_gz, delegate, cx)
|
|
.await
|
|
}
|
|
|
|
async fn extract_server_binary(
|
|
&self,
|
|
dst_path: &Path,
|
|
dst_path_gz: &Path,
|
|
delegate: &Arc<dyn SshClientDelegate>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Result<()> {
|
|
delegate.set_status(Some("Extracting remote development server"), cx);
|
|
run_cmd(
|
|
self.socket
|
|
.ssh_command("gunzip")
|
|
.arg("--force")
|
|
.arg(&dst_path_gz),
|
|
)
|
|
.await?;
|
|
|
|
let server_mode = 0o755;
|
|
delegate.set_status(Some("Marking remote development server executable"), cx);
|
|
run_cmd(
|
|
self.socket
|
|
.ssh_command("chmod")
|
|
.arg(format!("{:o}", server_mode))
|
|
.arg(dst_path),
|
|
)
|
|
.await?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
async fn query_platform(&self) -> Result<SshPlatform> {
|
|
let os = run_cmd(self.socket.ssh_command("uname").arg("-s")).await?;
|
|
let arch = run_cmd(self.socket.ssh_command("uname").arg("-m")).await?;
|
|
|
|
let os = match os.trim() {
|
|
"Darwin" => "macos",
|
|
"Linux" => "linux",
|
|
_ => Err(anyhow!("unknown uname os {os:?}"))?,
|
|
};
|
|
let arch = if arch.starts_with("arm") || arch.starts_with("aarch64") {
|
|
"aarch64"
|
|
} else if arch.starts_with("x86") || arch.starts_with("i686") {
|
|
"x86_64"
|
|
} else {
|
|
Err(anyhow!("unknown uname architecture {arch:?}"))?
|
|
};
|
|
|
|
Ok(SshPlatform { os, arch })
|
|
}
|
|
|
|
async fn upload_file(&self, src_path: &Path, dest_path: &Path) -> Result<()> {
|
|
let mut command = process::Command::new("scp");
|
|
let output = self
|
|
.socket
|
|
.ssh_options(&mut command)
|
|
.args(
|
|
self.socket
|
|
.connection_options
|
|
.port
|
|
.map(|port| vec!["-P".to_string(), port.to_string()])
|
|
.unwrap_or_default(),
|
|
)
|
|
.arg(src_path)
|
|
.arg(format!(
|
|
"{}:{}",
|
|
self.socket.connection_options.scp_url(),
|
|
dest_path.display()
|
|
))
|
|
.output()
|
|
.await?;
|
|
|
|
if output.status.success() {
|
|
Ok(())
|
|
} else {
|
|
Err(anyhow!(
|
|
"failed to upload file {} -> {}: {}",
|
|
src_path.display(),
|
|
dest_path.display(),
|
|
String::from_utf8_lossy(&output.stderr)
|
|
))
|
|
}
|
|
}
|
|
}
|
|
|
|
type ResponseChannels = Mutex<HashMap<MessageId, oneshot::Sender<(Envelope, oneshot::Sender<()>)>>>;
|
|
|
|
pub struct ChannelClient {
|
|
next_message_id: AtomicU32,
|
|
outgoing_tx: Mutex<mpsc::UnboundedSender<Envelope>>,
|
|
buffer: Mutex<VecDeque<Envelope>>,
|
|
response_channels: ResponseChannels,
|
|
message_handlers: Mutex<ProtoMessageHandlerSet>,
|
|
max_received: AtomicU32,
|
|
name: &'static str,
|
|
task: Mutex<Task<Result<()>>>,
|
|
}
|
|
|
|
impl ChannelClient {
|
|
pub fn new(
|
|
incoming_rx: mpsc::UnboundedReceiver<Envelope>,
|
|
outgoing_tx: mpsc::UnboundedSender<Envelope>,
|
|
cx: &AppContext,
|
|
name: &'static str,
|
|
) -> Arc<Self> {
|
|
Arc::new_cyclic(|this| Self {
|
|
outgoing_tx: Mutex::new(outgoing_tx),
|
|
next_message_id: AtomicU32::new(0),
|
|
max_received: AtomicU32::new(0),
|
|
response_channels: ResponseChannels::default(),
|
|
message_handlers: Default::default(),
|
|
buffer: Mutex::new(VecDeque::new()),
|
|
name,
|
|
task: Mutex::new(Self::start_handling_messages(
|
|
this.clone(),
|
|
incoming_rx,
|
|
&cx.to_async(),
|
|
)),
|
|
})
|
|
}
|
|
|
|
fn start_handling_messages(
|
|
this: Weak<Self>,
|
|
mut incoming_rx: mpsc::UnboundedReceiver<Envelope>,
|
|
cx: &AsyncAppContext,
|
|
) -> Task<Result<()>> {
|
|
cx.spawn(|cx| {
|
|
async move {
|
|
let peer_id = PeerId { owner_id: 0, id: 0 };
|
|
while let Some(incoming) = incoming_rx.next().await {
|
|
let Some(this) = this.upgrade() else {
|
|
return anyhow::Ok(());
|
|
};
|
|
if let Some(ack_id) = incoming.ack_id {
|
|
let mut buffer = this.buffer.lock();
|
|
while buffer.front().is_some_and(|msg| msg.id <= ack_id) {
|
|
buffer.pop_front();
|
|
}
|
|
}
|
|
if let Some(proto::envelope::Payload::FlushBufferedMessages(_)) =
|
|
&incoming.payload
|
|
{
|
|
log::debug!("{}:ssh message received. name:FlushBufferedMessages", this.name);
|
|
{
|
|
let buffer = this.buffer.lock();
|
|
for envelope in buffer.iter() {
|
|
this.outgoing_tx.lock().unbounded_send(envelope.clone()).ok();
|
|
}
|
|
}
|
|
let mut envelope = proto::Ack{}.into_envelope(0, Some(incoming.id), None);
|
|
envelope.id = this.next_message_id.fetch_add(1, SeqCst);
|
|
this.outgoing_tx.lock().unbounded_send(envelope).ok();
|
|
continue;
|
|
}
|
|
|
|
this.max_received.store(incoming.id, SeqCst);
|
|
|
|
if let Some(request_id) = incoming.responding_to {
|
|
let request_id = MessageId(request_id);
|
|
let sender = this.response_channels.lock().remove(&request_id);
|
|
if let Some(sender) = sender {
|
|
let (tx, rx) = oneshot::channel();
|
|
if incoming.payload.is_some() {
|
|
sender.send((incoming, tx)).ok();
|
|
}
|
|
rx.await.ok();
|
|
}
|
|
} else if let Some(envelope) =
|
|
build_typed_envelope(peer_id, Instant::now(), incoming)
|
|
{
|
|
let type_name = envelope.payload_type_name();
|
|
if let Some(future) = ProtoMessageHandlerSet::handle_message(
|
|
&this.message_handlers,
|
|
envelope,
|
|
this.clone().into(),
|
|
cx.clone(),
|
|
) {
|
|
log::debug!("{}:ssh message received. name:{type_name}", this.name);
|
|
cx.foreground_executor().spawn(async move {
|
|
match future.await {
|
|
Ok(_) => {
|
|
log::debug!("{}:ssh message handled. name:{type_name}", this.name);
|
|
}
|
|
Err(error) => {
|
|
log::error!(
|
|
"{}:error handling message. type:{type_name}, error:{error}", this.name,
|
|
);
|
|
}
|
|
}
|
|
}).detach()
|
|
} else {
|
|
log::error!("{}:unhandled ssh message name:{type_name}", this.name);
|
|
}
|
|
}
|
|
}
|
|
anyhow::Ok(())
|
|
}
|
|
})
|
|
}
|
|
|
|
pub fn reconnect(
|
|
self: &Arc<Self>,
|
|
incoming_rx: UnboundedReceiver<Envelope>,
|
|
outgoing_tx: UnboundedSender<Envelope>,
|
|
cx: &AsyncAppContext,
|
|
) {
|
|
*self.outgoing_tx.lock() = outgoing_tx;
|
|
*self.task.lock() = Self::start_handling_messages(Arc::downgrade(self), incoming_rx, cx);
|
|
}
|
|
|
|
pub fn subscribe_to_entity<E: 'static>(&self, remote_id: u64, entity: &Model<E>) {
|
|
let id = (TypeId::of::<E>(), remote_id);
|
|
|
|
let mut message_handlers = self.message_handlers.lock();
|
|
if message_handlers
|
|
.entities_by_type_and_remote_id
|
|
.contains_key(&id)
|
|
{
|
|
panic!("already subscribed to entity");
|
|
}
|
|
|
|
message_handlers.entities_by_type_and_remote_id.insert(
|
|
id,
|
|
EntityMessageSubscriber::Entity {
|
|
handle: entity.downgrade().into(),
|
|
},
|
|
);
|
|
}
|
|
|
|
pub fn request<T: RequestMessage>(
|
|
&self,
|
|
payload: T,
|
|
) -> impl 'static + Future<Output = Result<T::Response>> {
|
|
self.request_internal(payload, true)
|
|
}
|
|
|
|
fn request_internal<T: RequestMessage>(
|
|
&self,
|
|
payload: T,
|
|
use_buffer: bool,
|
|
) -> impl 'static + Future<Output = Result<T::Response>> {
|
|
log::debug!("ssh request start. name:{}", T::NAME);
|
|
let response =
|
|
self.request_dynamic(payload.into_envelope(0, None, None), T::NAME, use_buffer);
|
|
async move {
|
|
let response = response.await?;
|
|
log::debug!("ssh request finish. name:{}", T::NAME);
|
|
T::Response::from_envelope(response)
|
|
.ok_or_else(|| anyhow!("received a response of the wrong type"))
|
|
}
|
|
}
|
|
|
|
pub async fn resync(&self, timeout: Duration) -> Result<()> {
|
|
smol::future::or(
|
|
async {
|
|
self.request_internal(proto::FlushBufferedMessages {}, false)
|
|
.await?;
|
|
|
|
for envelope in self.buffer.lock().iter() {
|
|
self.outgoing_tx
|
|
.lock()
|
|
.unbounded_send(envelope.clone())
|
|
.ok();
|
|
}
|
|
Ok(())
|
|
},
|
|
async {
|
|
smol::Timer::after(timeout).await;
|
|
Err(anyhow!("Timeout detected"))
|
|
},
|
|
)
|
|
.await
|
|
}
|
|
|
|
pub async fn ping(&self, timeout: Duration) -> Result<()> {
|
|
smol::future::or(
|
|
async {
|
|
self.request(proto::Ping {}).await?;
|
|
Ok(())
|
|
},
|
|
async {
|
|
smol::Timer::after(timeout).await;
|
|
Err(anyhow!("Timeout detected"))
|
|
},
|
|
)
|
|
.await
|
|
}
|
|
|
|
pub fn send<T: EnvelopedMessage>(&self, payload: T) -> Result<()> {
|
|
log::debug!("ssh send name:{}", T::NAME);
|
|
self.send_dynamic(payload.into_envelope(0, None, None))
|
|
}
|
|
|
|
fn request_dynamic(
|
|
&self,
|
|
mut envelope: proto::Envelope,
|
|
type_name: &'static str,
|
|
use_buffer: bool,
|
|
) -> impl 'static + Future<Output = Result<proto::Envelope>> {
|
|
envelope.id = self.next_message_id.fetch_add(1, SeqCst);
|
|
let (tx, rx) = oneshot::channel();
|
|
let mut response_channels_lock = self.response_channels.lock();
|
|
response_channels_lock.insert(MessageId(envelope.id), tx);
|
|
drop(response_channels_lock);
|
|
|
|
let result = if use_buffer {
|
|
self.send_buffered(envelope)
|
|
} else {
|
|
self.send_unbuffered(envelope)
|
|
};
|
|
async move {
|
|
if let Err(error) = &result {
|
|
log::error!("failed to send message: {}", error);
|
|
return Err(anyhow!("failed to send message: {}", error));
|
|
}
|
|
|
|
let response = rx.await.context("connection lost")?.0;
|
|
if let Some(proto::envelope::Payload::Error(error)) = &response.payload {
|
|
return Err(RpcError::from_proto(error, type_name));
|
|
}
|
|
Ok(response)
|
|
}
|
|
}
|
|
|
|
pub fn send_dynamic(&self, mut envelope: proto::Envelope) -> Result<()> {
|
|
envelope.id = self.next_message_id.fetch_add(1, SeqCst);
|
|
self.send_buffered(envelope)
|
|
}
|
|
|
|
fn send_buffered(&self, mut envelope: proto::Envelope) -> Result<()> {
|
|
envelope.ack_id = Some(self.max_received.load(SeqCst));
|
|
self.buffer.lock().push_back(envelope.clone());
|
|
// ignore errors on send (happen while we're reconnecting)
|
|
// assume that the global "disconnected" overlay is sufficient.
|
|
self.outgoing_tx.lock().unbounded_send(envelope).ok();
|
|
Ok(())
|
|
}
|
|
|
|
fn send_unbuffered(&self, mut envelope: proto::Envelope) -> Result<()> {
|
|
envelope.ack_id = Some(self.max_received.load(SeqCst));
|
|
self.outgoing_tx.lock().unbounded_send(envelope).ok();
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
impl ProtoClient for ChannelClient {
|
|
fn request(
|
|
&self,
|
|
envelope: proto::Envelope,
|
|
request_type: &'static str,
|
|
) -> BoxFuture<'static, Result<proto::Envelope>> {
|
|
self.request_dynamic(envelope, request_type, true).boxed()
|
|
}
|
|
|
|
fn send(&self, envelope: proto::Envelope, _message_type: &'static str) -> Result<()> {
|
|
self.send_dynamic(envelope)
|
|
}
|
|
|
|
fn send_response(&self, envelope: Envelope, _message_type: &'static str) -> anyhow::Result<()> {
|
|
self.send_dynamic(envelope)
|
|
}
|
|
|
|
fn message_handler_set(&self) -> &Mutex<ProtoMessageHandlerSet> {
|
|
&self.message_handlers
|
|
}
|
|
|
|
fn is_via_collab(&self) -> bool {
|
|
false
|
|
}
|
|
}
|
|
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
mod fake {
|
|
use std::{path::PathBuf, sync::Arc};
|
|
|
|
use anyhow::Result;
|
|
use async_trait::async_trait;
|
|
use futures::{
|
|
channel::{
|
|
mpsc::{self, Sender},
|
|
oneshot,
|
|
},
|
|
select_biased, FutureExt, SinkExt, StreamExt,
|
|
};
|
|
use gpui::{AsyncAppContext, BorrowAppContext, Global, SemanticVersion, Task};
|
|
use rpc::proto::Envelope;
|
|
|
|
use super::{
|
|
ChannelClient, ServerBinary, SshClientDelegate, SshConnectionOptions, SshPlatform,
|
|
SshRemoteProcess,
|
|
};
|
|
|
|
pub(super) struct SshRemoteConnection {
|
|
connection_options: SshConnectionOptions,
|
|
}
|
|
|
|
impl SshRemoteConnection {
|
|
pub(super) fn new(
|
|
connection_options: &SshConnectionOptions,
|
|
) -> Option<Box<dyn SshRemoteProcess>> {
|
|
if connection_options.host == "<fake>" {
|
|
return Some(Box::new(Self {
|
|
connection_options: connection_options.clone(),
|
|
}));
|
|
}
|
|
return None;
|
|
}
|
|
pub(super) async fn multiplex(
|
|
connection_options: SshConnectionOptions,
|
|
mut client_incoming_tx: mpsc::UnboundedSender<Envelope>,
|
|
mut client_outgoing_rx: mpsc::UnboundedReceiver<Envelope>,
|
|
mut connection_activity_tx: Sender<()>,
|
|
cx: &mut AsyncAppContext,
|
|
) -> Task<Result<i32>> {
|
|
let (mut server_incoming_tx, server_incoming_rx) = mpsc::unbounded::<Envelope>();
|
|
let (server_outgoing_tx, mut server_outgoing_rx) = mpsc::unbounded::<Envelope>();
|
|
|
|
let (channel, server_cx) = cx
|
|
.update(|cx| {
|
|
cx.update_global(|conns: &mut ServerConnections, _| {
|
|
conns.get(connection_options.port.unwrap())
|
|
})
|
|
})
|
|
.unwrap();
|
|
channel.reconnect(server_incoming_rx, server_outgoing_tx, &server_cx);
|
|
|
|
// send to proxy_tx to get to the server.
|
|
// receive from
|
|
|
|
cx.background_executor().spawn(async move {
|
|
loop {
|
|
select_biased! {
|
|
server_to_client = server_outgoing_rx.next().fuse() => {
|
|
let Some(server_to_client) = server_to_client else {
|
|
return Ok(1)
|
|
};
|
|
connection_activity_tx.try_send(()).ok();
|
|
client_incoming_tx.send(server_to_client).await.ok();
|
|
}
|
|
client_to_server = client_outgoing_rx.next().fuse() => {
|
|
let Some(client_to_server) = client_to_server else {
|
|
return Ok(1)
|
|
};
|
|
server_incoming_tx.send(client_to_server).await.ok();
|
|
}
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
#[async_trait]
|
|
impl SshRemoteProcess for SshRemoteConnection {
|
|
async fn kill(&mut self) -> Result<()> {
|
|
Ok(())
|
|
}
|
|
|
|
fn ssh_args(&self) -> Vec<String> {
|
|
Vec::new()
|
|
}
|
|
|
|
fn connection_options(&self) -> SshConnectionOptions {
|
|
self.connection_options.clone()
|
|
}
|
|
}
|
|
|
|
#[derive(Default)]
|
|
pub(super) struct ServerConnections(Vec<(Arc<ChannelClient>, AsyncAppContext)>);
|
|
impl Global for ServerConnections {}
|
|
|
|
impl ServerConnections {
|
|
pub(super) fn push(&mut self, server: Arc<ChannelClient>, cx: AsyncAppContext) -> u16 {
|
|
self.0.push((server.clone(), cx));
|
|
self.0.len() as u16 - 1
|
|
}
|
|
|
|
pub(super) fn get(&mut self, port: u16) -> (Arc<ChannelClient>, AsyncAppContext) {
|
|
self.0
|
|
.get(port as usize)
|
|
.expect("no fake server for port")
|
|
.clone()
|
|
}
|
|
}
|
|
|
|
pub(super) struct Delegate;
|
|
|
|
impl SshClientDelegate for Delegate {
|
|
fn ask_password(
|
|
&self,
|
|
_: String,
|
|
_: &mut AsyncAppContext,
|
|
) -> oneshot::Receiver<Result<String>> {
|
|
unreachable!()
|
|
}
|
|
fn remote_server_binary_path(
|
|
&self,
|
|
_: SshPlatform,
|
|
_: &mut AsyncAppContext,
|
|
) -> Result<PathBuf> {
|
|
unreachable!()
|
|
}
|
|
fn get_server_binary(
|
|
&self,
|
|
_: SshPlatform,
|
|
_: &mut AsyncAppContext,
|
|
) -> oneshot::Receiver<Result<(ServerBinary, SemanticVersion)>> {
|
|
unreachable!()
|
|
}
|
|
|
|
fn set_status(&self, _: Option<&str>, _: &mut AsyncAppContext) {
|
|
unreachable!()
|
|
}
|
|
}
|
|
}
|