271 lines
8 KiB
Rust
271 lines
8 KiB
Rust
|
extern crate server;
|
||
|
|
|
||
|
|
use std::time::{Instant, Duration};
|
||
|
|
use server::actix::*;
|
||
|
|
use server::actix_web::server::HttpServer;
|
||
|
|
use server::actix_web::{fs, http, ws, App, Error, HttpRequest, HttpResponse};
|
||
|
|
|
||
|
|
|
||
|
|
/// How often heartbeat pings are sent
|
||
|
|
const HEARTBEAT_INTERVAL: Duration = Duration::from_secs(5);
|
||
|
|
/// How long before lack of client response causes a timeout
|
||
|
|
const CLIENT_TIMEOUT: Duration = Duration::from_secs(10);
|
||
|
|
|
||
|
|
use server::websocket_server::server::*;
|
||
|
|
use std::str::FromStr;
|
||
|
|
// use server::websocket_server::server::UserOperation::from_str;
|
||
|
|
|
||
|
|
/// This is our websocket route state, this state is shared with all route
|
||
|
|
/// instances via `HttpContext::state()`
|
||
|
|
struct WsChatSessionState {
|
||
|
|
addr: Addr<ChatServer>,
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Entry point for our route
|
||
|
|
fn chat_route(req: &HttpRequest<WsChatSessionState>) -> Result<HttpResponse, Error> {
|
||
|
|
ws::start(
|
||
|
|
req,
|
||
|
|
WSSession {
|
||
|
|
id: 0,
|
||
|
|
hb: Instant::now()
|
||
|
|
},
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
struct WSSession {
|
||
|
|
/// unique session id
|
||
|
|
id: usize,
|
||
|
|
/// Client must send ping at least once per 10 seconds (CLIENT_TIMEOUT),
|
||
|
|
/// otherwise we drop connection.
|
||
|
|
hb: Instant
|
||
|
|
}
|
||
|
|
|
||
|
|
impl Actor for WSSession {
|
||
|
|
type Context = ws::WebsocketContext<Self, WsChatSessionState>;
|
||
|
|
|
||
|
|
/// Method is called on actor start.
|
||
|
|
/// We register ws session with ChatServer
|
||
|
|
fn started(&mut self, ctx: &mut Self::Context) {
|
||
|
|
// we'll start heartbeat process on session start.
|
||
|
|
self.hb(ctx);
|
||
|
|
|
||
|
|
// register self in chat server. `AsyncContext::wait` register
|
||
|
|
// future within context, but context waits until this future resolves
|
||
|
|
// before processing any other events.
|
||
|
|
// HttpContext::state() is instance of WsChatSessionState, state is shared
|
||
|
|
// across all routes within application
|
||
|
|
let addr = ctx.address();
|
||
|
|
ctx.state()
|
||
|
|
.addr
|
||
|
|
.send(Connect {
|
||
|
|
addr: addr.recipient(),
|
||
|
|
})
|
||
|
|
.into_actor(self)
|
||
|
|
.then(|res, act, ctx| {
|
||
|
|
match res {
|
||
|
|
Ok(res) => act.id = res,
|
||
|
|
// something is wrong with chat server
|
||
|
|
_ => ctx.stop(),
|
||
|
|
}
|
||
|
|
fut::ok(())
|
||
|
|
})
|
||
|
|
.wait(ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
fn stopping(&mut self, ctx: &mut Self::Context) -> Running {
|
||
|
|
// notify chat server
|
||
|
|
ctx.state().addr.do_send(Disconnect { id: self.id });
|
||
|
|
Running::Stop
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Handle messages from chat server, we simply send it to peer websocket
|
||
|
|
impl Handler<WSMessage> for WSSession {
|
||
|
|
type Result = ();
|
||
|
|
|
||
|
|
fn handle(&mut self, msg: WSMessage, ctx: &mut Self::Context) {
|
||
|
|
ctx.text(msg.0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
use server::serde_json::Value;
|
||
|
|
/// WebSocket message handler
|
||
|
|
impl StreamHandler<ws::Message, ws::ProtocolError> for WSSession {
|
||
|
|
fn handle(&mut self, msg: ws::Message, ctx: &mut Self::Context) {
|
||
|
|
// println!("WEBSOCKET MESSAGE: {:?}", msg);
|
||
|
|
match msg {
|
||
|
|
ws::Message::Ping(msg) => {
|
||
|
|
self.hb = Instant::now();
|
||
|
|
ctx.pong(&msg);
|
||
|
|
}
|
||
|
|
ws::Message::Pong(_) => {
|
||
|
|
self.hb = Instant::now();
|
||
|
|
}
|
||
|
|
ws::Message::Text(text) => {
|
||
|
|
let m = text.trim();
|
||
|
|
let json: Value = serde_json::from_str(m).unwrap();
|
||
|
|
|
||
|
|
// Get the OP command, and its data
|
||
|
|
let op: &str = &json["op"].as_str().unwrap();
|
||
|
|
let data: &Value = &json["data"];
|
||
|
|
|
||
|
|
let user_operation: UserOperation = UserOperation::from_str(op).unwrap();
|
||
|
|
|
||
|
|
match user_operation {
|
||
|
|
UserOperation::Login => {
|
||
|
|
let login: Login = serde_json::from_str(&data.to_string()).unwrap();
|
||
|
|
ctx.state()
|
||
|
|
.addr
|
||
|
|
.do_send(login);
|
||
|
|
},
|
||
|
|
UserOperation::Register => {
|
||
|
|
let register: Register = serde_json::from_str(&data.to_string()).unwrap();
|
||
|
|
ctx.state()
|
||
|
|
.addr
|
||
|
|
.send(register)
|
||
|
|
.into_actor(self)
|
||
|
|
.then(|res, _, ctx| {
|
||
|
|
match res {
|
||
|
|
Ok(wut) => ctx.text(wut),
|
||
|
|
_ => println!("Something is wrong"),
|
||
|
|
}
|
||
|
|
fut::ok(())
|
||
|
|
})
|
||
|
|
.wait(ctx)
|
||
|
|
}
|
||
|
|
_ => ctx.text(format!("!!! unknown command: {:?}", m)),
|
||
|
|
}
|
||
|
|
|
||
|
|
// we check for /sss type of messages
|
||
|
|
// if m.starts_with('/') {
|
||
|
|
// let v: Vec<&str> = m.splitn(2, ' ').collect();
|
||
|
|
// match v[0] {
|
||
|
|
// "/list" => {
|
||
|
|
// // Send ListRooms message to chat server and wait for
|
||
|
|
// // response
|
||
|
|
// println!("List rooms");
|
||
|
|
// ctx.state()
|
||
|
|
// .addr
|
||
|
|
// .send(ListRooms)
|
||
|
|
// .into_actor(self)
|
||
|
|
// .then(|res, _, ctx| {
|
||
|
|
// match res {
|
||
|
|
// Ok(rooms) => {
|
||
|
|
// for room in rooms {
|
||
|
|
// ctx.text(room);
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
// _ => println!("Something is wrong"),
|
||
|
|
// }
|
||
|
|
// fut::ok(())
|
||
|
|
// })
|
||
|
|
// .wait(ctx)
|
||
|
|
// .wait(ctx) pauses all events in context,
|
||
|
|
// so actor wont receive any new messages until it get list
|
||
|
|
// of rooms back
|
||
|
|
// }
|
||
|
|
// "/join" => {
|
||
|
|
// if v.len() == 2 {
|
||
|
|
// self.room = v[1].to_owned();
|
||
|
|
// ctx.state().addr.do_send(Join {
|
||
|
|
// id: self.id,
|
||
|
|
// name: self.room.clone(),
|
||
|
|
// });
|
||
|
|
|
||
|
|
// ctx.text("joined");
|
||
|
|
// } else {
|
||
|
|
// ctx.text("!!! room name is required");
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
// "/name" => {
|
||
|
|
// if v.len() == 2 {
|
||
|
|
// self.name = Some(v[1].to_owned());
|
||
|
|
// } else {
|
||
|
|
// ctx.text("!!! name is required");
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
// _ => ctx.text(format!("!!! unknown command: {:?}", m)),
|
||
|
|
// }
|
||
|
|
// } else {
|
||
|
|
// let msg = if let Some(ref name) = self.name {
|
||
|
|
// format!("{}: {}", name, m)
|
||
|
|
// } else {
|
||
|
|
// m.to_owned()
|
||
|
|
// };
|
||
|
|
// send message to chat server
|
||
|
|
// ctx.state().addr.do_send(ClientMessage {
|
||
|
|
// id: self.id,
|
||
|
|
// msg: msg,
|
||
|
|
// room: self.room.clone(),
|
||
|
|
// })
|
||
|
|
// }
|
||
|
|
}
|
||
|
|
ws::Message::Binary(_bin) => println!("Unexpected binary"),
|
||
|
|
ws::Message::Close(_) => {
|
||
|
|
ctx.stop();
|
||
|
|
},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl WSSession {
|
||
|
|
/// helper method that sends ping to client every second.
|
||
|
|
///
|
||
|
|
/// also this method checks heartbeats from client
|
||
|
|
fn hb(&self, ctx: &mut ws::WebsocketContext<Self, WsChatSessionState>) {
|
||
|
|
ctx.run_interval(HEARTBEAT_INTERVAL, |act, ctx| {
|
||
|
|
// check client heartbeats
|
||
|
|
if Instant::now().duration_since(act.hb) > CLIENT_TIMEOUT {
|
||
|
|
// heartbeat timed out
|
||
|
|
println!("Websocket Client heartbeat failed, disconnecting!");
|
||
|
|
|
||
|
|
// notify chat server
|
||
|
|
ctx.state()
|
||
|
|
.addr
|
||
|
|
.do_send(Disconnect { id: act.id });
|
||
|
|
|
||
|
|
// stop actor
|
||
|
|
ctx.stop();
|
||
|
|
|
||
|
|
// don't try to send a ping
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.ping("");
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let _ = env_logger::init();
|
||
|
|
let sys = actix::System::new("rust-reddit-fediverse-server");
|
||
|
|
|
||
|
|
// Start chat server actor in separate thread
|
||
|
|
let server = Arbiter::start(|_| ChatServer::default());
|
||
|
|
|
||
|
|
// Create Http server with websocket support
|
||
|
|
HttpServer::new(move || {
|
||
|
|
// Websocket sessions state
|
||
|
|
let state = WsChatSessionState {
|
||
|
|
addr: server.clone(),
|
||
|
|
};
|
||
|
|
|
||
|
|
App::with_state(state)
|
||
|
|
// redirect to websocket.html
|
||
|
|
// .resource("/", |r| r.method(http::Method::GET).f(|_| {
|
||
|
|
// HttpResponse::Found()
|
||
|
|
// .header("LOCATION", "/static/websocket.html")
|
||
|
|
// .finish()
|
||
|
|
// }))
|
||
|
|
// // websocket
|
||
|
|
.resource("/service/ws", |r| r.route().f(chat_route))
|
||
|
|
// static resources
|
||
|
|
// .handler("/static/", fs::StaticFiles::new("static/").unwrap())
|
||
|
|
}).bind("127.0.0.1:8080")
|
||
|
|
.unwrap()
|
||
|
|
.start();
|
||
|
|
|
||
|
|
println!("Started http server: 127.0.0.1:8080");
|
||
|
|
let _ = sys.run();
|
||
|
|
}
|