updates telemetry to no longer use grpc

server/src/http/backend/mod.rs

@@ -0,0 +1,57 @@
+mod connection;
+
+use crate::http::backend::connection::BackendConnection;
+use crate::telemetry::management_service::TelemetryManagementService;
+use actix_web::{rt, web, HttpRequest, HttpResponse};
+use log::{error, trace};
+use std::sync::Arc;
+use tokio::select;
+use tokio_util::sync::CancellationToken;
+use tonic::codegen::tokio_stream::StreamExt;
+
+async fn backend_connect(
+    req: HttpRequest,
+    stream: web::Payload,
+    cancel_token: web::Data<CancellationToken>,
+    telemetry_management_service: web::Data<Arc<TelemetryManagementService>>,
+) -> Result<HttpResponse, actix_web::Error> {
+    trace!("backend_connect");
+    let (res, session, stream) = actix_ws::handle(&req, stream)?;
+
+    let mut stream = stream
+        .aggregate_continuations()
+        // up to 1 MiB
+        .max_continuation_size(2_usize.pow(20));
+
+    let cancel_token = cancel_token.get_ref().clone();
+    let tlm_management = telemetry_management_service.get_ref().clone();
+
+    rt::spawn(async move {
+        let mut connection = BackendConnection::new(session, tlm_management);
+        while !connection.should_close {
+            let result = select! {
+                _ = cancel_token.cancelled() => {
+                    connection.should_close = true;
+                    Ok(())
+                },
+                Some(msg) = connection.rx.recv() => connection.handle_response(msg).await,
+                Some(msg) = stream.next() => connection.handle_request_message(msg).await,
+                else => {
+                    connection.should_close = true;
+                    Ok(())
+                },
+            };
+            if let Err(e) = result {
+                error!("backend socket error: {e}");
+                connection.should_close = true;
+            }
+        }
+        connection.cleanup().await;
+    });
+
+    Ok(res)
+}
+
+pub fn setup_backend(cfg: &mut web::ServiceConfig) {
+    cfg.route("", web::get().to(backend_connect));
+}