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use rustimate_core::{RequestMessage, ResponseMessage, Result};
use rustimate_service::handler::MessageHandler;
use rustimate_service::AppConfig;
use actix::{Actor, StreamHandler};
use actix_session::Session;
use actix_web::{web, Error, HttpRequest, HttpResponse};
use actix_web_actors::ws;
struct ServerSocket {
binary: bool,
handler: MessageHandler
}
impl Actor for ServerSocket {
type Context = ws::WebsocketContext<Self>;
fn started(&mut self, wsc: &mut Self::Context) {
for msg in self.handler.on_open() {
match self.send(msg, wsc) {
Ok(_) => (),
Err(e) => slog::warn!(self.handler.log(), "Unable to send initial open messages: {}", e)
}
}
}
}
impl ServerSocket {
fn handler(&self) -> &MessageHandler {
&self.handler
}
fn handle_text(&self, s: String, wsc: &mut ws::WebsocketContext<Self>) -> Result<()> {
let req = RequestMessage::from_json(&s)?;
self.handle_message(req, wsc)
}
fn handle_binary(&self, bytes: bytes::Bytes, wsc: &mut ws::WebsocketContext<Self>) -> Result<()> {
let b: &[u8] = bytes.as_ref();
let req = RequestMessage::from_binary(&b.to_vec())?;
self.handle_message(req, wsc)
}
fn handle_message(&self, req: RequestMessage, wsc: &mut ws::WebsocketContext<Self>) -> Result<()> {
for msg in self.handler.on_message(req)? {
self.send(msg, wsc)?;
}
Ok(())
}
fn handle_error(&self, e: &rustimate_core::Error, wsc: &mut ws::WebsocketContext<Self>) {
slog::warn!(&self.handler().log(), "Error handling message: {}", e);
let msg = ResponseMessage::ServerError {
reason: format!("{}", e),
content: "Error handling message".into()
};
match self.send(msg, wsc) {
Ok(_) => (),
Err(e) => slog::warn!(&self.handler().log(), "Error sending server error message: {}", e)
}
}
fn send(&self, rsp: ResponseMessage, wsc: &mut ws::WebsocketContext<Self>) -> Result<()> {
if self.binary {
wsc.binary(rsp.to_binary()?);
} else {
wsc.text(rsp.to_json()?);
}
Ok(())
}
}
impl StreamHandler<ws::Message, ws::ProtocolError> for ServerSocket {
fn handle(&mut self, msg: ws::Message, wsc: &mut Self::Context) {
match msg {
ws::Message::Ping(msg) => wsc.pong(&msg),
ws::Message::Text(text) => match &self.handle_text(text, wsc) {
Ok(_) => (),
Err(e) => self.handle_error(&e, wsc)
},
ws::Message::Binary(bin) => match self.handle_binary(bin, wsc) {
Ok(_) => (),
Err(e) => self.handle_error(&e, wsc)
},
_ => ()
}
}
}
pub fn connect(
session: Session, cfg: web::Data<AppConfig>, req: HttpRequest, key: web::Path<String>, stream: web::Payload
) -> std::result::Result<HttpResponse, Error> {
let ctx = crate::req_context(&session, &cfg, &req, "connect");
let binary = match req.query_string() {
x if x.contains("t=b") => true,
x if x.contains("t=j") => false,
_ => !cfg.verbose()
};
let handler = MessageHandler::new(ctx, key.to_string());
let socket = ServerSocket { binary, handler };
ws::start(socket, &req, stream)
}