1 extern crate lemmy_server;
3 extern crate diesel_migrations;
6 use actix_files::NamedFile;
8 use actix_web_actors::ws;
9 use lemmy_server::db::establish_connection;
10 use lemmy_server::nodeinfo;
11 use lemmy_server::websocket::server::*;
13 use std::time::{Duration, Instant};
17 /// How often heartbeat pings are sent
18 const HEARTBEAT_INTERVAL: Duration = Duration::from_secs(5);
19 /// How long before lack of client response causes a timeout
20 const CLIENT_TIMEOUT: Duration = Duration::from_secs(10);
22 /// Entry point for our route
26 chat_server: web::Data<Addr<ChatServer>>,
27 ) -> Result<HttpResponse, Error> {
30 cs_addr: chat_server.get_ref().to_owned(),
36 .unwrap_or("127.0.0.1:12345")
39 .unwrap_or("127.0.0.1")
48 cs_addr: Addr<ChatServer>,
52 /// Client must send ping at least once per 10 seconds (CLIENT_TIMEOUT),
53 /// otherwise we drop connection.
57 impl Actor for WSSession {
58 type Context = ws::WebsocketContext<Self>;
60 /// Method is called on actor start.
61 /// We register ws session with ChatServer
62 fn started(&mut self, ctx: &mut Self::Context) {
63 // we'll start heartbeat process on session start.
66 // register self in chat server. `AsyncContext::wait` register
67 // future within context, but context waits until this future resolves
68 // before processing any other events.
69 // across all routes within application
70 let addr = ctx.address();
74 addr: addr.recipient(),
75 ip: self.ip.to_owned(),
78 .then(|res, act, ctx| {
80 Ok(res) => act.id = res,
81 // something is wrong with chat server
89 fn stopping(&mut self, _ctx: &mut Self::Context) -> Running {
91 self.cs_addr.do_send(Disconnect {
93 ip: self.ip.to_owned(),
99 /// Handle messages from chat server, we simply send it to peer websocket
100 /// These are room messages, IE sent to others in the room
101 impl Handler<WSMessage> for WSSession {
104 fn handle(&mut self, msg: WSMessage, ctx: &mut Self::Context) {
105 // println!("id: {} msg: {}", self.id, msg.0);
110 /// WebSocket message handler
111 impl StreamHandler<ws::Message, ws::ProtocolError> for WSSession {
112 fn handle(&mut self, msg: ws::Message, ctx: &mut Self::Context) {
113 // println!("WEBSOCKET MESSAGE: {:?} from id: {}", msg, self.id);
115 ws::Message::Ping(msg) => {
116 self.hb = Instant::now();
119 ws::Message::Pong(_) => {
120 self.hb = Instant::now();
122 ws::Message::Text(text) => {
123 let m = text.trim().to_owned();
124 println!("WEBSOCKET MESSAGE: {:?} from id: {}", &m, self.id);
128 .send(StandardMessage {
133 .then(|res, _, ctx| {
135 Ok(res) => ctx.text(res),
144 ws::Message::Binary(_bin) => println!("Unexpected binary"),
145 ws::Message::Close(_) => {
154 /// helper method that sends ping to client every second.
156 /// also this method checks heartbeats from client
157 fn hb(&self, ctx: &mut ws::WebsocketContext<Self>) {
158 ctx.run_interval(HEARTBEAT_INTERVAL, |act, ctx| {
159 // check client heartbeats
160 if Instant::now().duration_since(act.hb) > CLIENT_TIMEOUT {
161 // heartbeat timed out
162 println!("Websocket Client heartbeat failed, disconnecting!");
164 // notify chat server
165 act.cs_addr.do_send(Disconnect {
167 ip: act.ip.to_owned(),
173 // don't try to send a ping
183 let _ = env_logger::init();
184 let sys = actix::System::new("lemmy");
186 // Run the migrations from code
187 let conn = establish_connection();
188 embedded_migrations::run(&conn).unwrap();
190 // Start chat server actor in separate thread
191 let server = ChatServer::default().start();
192 // Create Http server with websocket support
194 HttpServer::new(move || {
196 .data(server.clone())
197 .service(web::resource("/api/v1/ws").to(chat_route))
198 // .service(web::resource("/api/v1/rest").route(web::post().to(||{})))
199 .service(web::resource("/").to(index))
201 .service(actix_files::Files::new("/static", front_end_dir()))
202 .route("/nodeinfo/2.0.json", web::get().to(nodeinfo::node_info))
204 "/.well-known/nodeinfo",
205 web::get().to(nodeinfo::node_info_well_known),
208 .bind("0.0.0.0:8536")
212 println!("Started http server: 0.0.0.0:8536");
216 fn index() -> Result<NamedFile, actix_web::error::Error> {
217 Ok(NamedFile::open(front_end_dir() + "/index.html")?)
220 fn front_end_dir() -> String {
221 env::var("LEMMY_FRONT_END_DIR").unwrap_or("../ui/dist".to_string())