project: add shuttle build dependencies and shuttle main

Cargo.toml

@@ -3,17 +3,17 @@ name = "caesar_test"
 version = "0.0.1"
 edition = "2021"
 build = "src/build.rs"
+authors = ["Manuel Keidel", "Patryk Hegenberg", "Krzysztof Stankiewicz"]
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [[bin]]
 name = "caesar"
 path = "src/main.rs"
 
 [dependencies]
 futures-util = "0.3"
-tungstenite = "0.20.1"
+tungstenite = "0.21.0"
 tokio = { version = "1.28.1", features = ["full"] }
-tokio-tungstenite = { version = "0.20.1" }
+tokio-tungstenite = { version = "0.21.0" }
 serde_json = { version = "1.0" }
 serde = { version = "1.0", features = ["derive"] }
 uuid = { version = "1.3.2", features = ["v4"] }
@@ -22,16 +22,16 @@ tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
 dotenv = { version = "0.15.0", features = ["clap", "cli"] }
 clap = { version = "4.5.4", features = ["derive"] }
 flume = { git = "https://github.com/zesterer/flume", rev = "80d19c49" }
-prost = "0.11.9"
+prost = "0.12.4"
-prost-types = "0.11.9"
+prost-types = "0.12.4"
-base64 = "0.21.2"
+base64 = "0.22.0"
 url = "2.4.0"
 p256 = { version = "0.13.2", features = ["ecdh"] }
 hmac = "0.12.1"
 sha2 = "0.10.7"
 rand = { version = "0.8.5", features = ["getrandom"] }
 aes-gcm = "0.10.3"
-sanitize-filename = "0.4.0"
+sanitize-filename = "0.5.0"
 qr2term = "0.3.1"
 axum = { version = "0.7.5", features = ["ws"] }
 tower-http = { version = "0.5.2", features = ["fs", "trace"] }
@@ -40,6 +40,8 @@ local-ip-address = "0.6.1"
 axum-extra = { version = "0.9.3", features = ["typed-header"] }
 headers = "0.4"
 tower = { version = "0.4", features = ["util"] }
+shuttle-axum = { version = "0.44.0", optional = true }
+shuttle-runtime = { version = "0.44.0", optional = true }
 
 [build-dependencies]
-prost-build = "0.5"
+prost-build = "0.12.4"

src/main.rs

@@ -1,6 +1,9 @@
 use crate::cli::args::Args;
 use dotenv::dotenv;
+#[cfg(feature = "shuttle")]
+use shuttle_axum::ShuttleAxum;
 use tracing::error;
+#[cfg(not(feature = "shuttle"))]
 use tracing_subscriber::filter::EnvFilter;
 
 pub mod cli;
@@ -9,6 +12,7 @@ pub mod relay;
 pub mod sender;
 pub mod shared;
 
+#[cfg(not(feature = "shuttle"))]
 #[tokio::main]
 // This is the entrypoint of caesar.
 // The #[tokio::main] attribute is required for any async code, and it
@@ -35,3 +39,28 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     // Return an Ok result, which just means that our program exited successfully.
     Ok(())
 }
+
+#[cfg(feature = "shuttle")]
+#[shuttle_runtime::main]
+async fn main() -> ShuttleAxum {
+    let app_host = env::var("APP_HOST").unwrap_or("0.0.0.0".to_string());
+    let app_port = env::var("APP_PORT").unwrap_or("8000".to_string());
+
+    // Log information about the server's configuration.
+    debug!("Server configured to accept connections on host {app_host}...",);
+    debug!("Server configured to listen connections on port {app_port}...",);
+
+    // Create a new server data structure.
+    let server = server::Server::new();
+
+    // Set up the application routes.
+    let app = Router::new()
+        .route("/ws", get(ws_handler))
+        .with_state(server)
+        .layer(SecureClientIpSource::ConnectInfo.into_extension())
+        .layer(
+            TraceLayer::new_for_http()
+                .make_span_with(DefaultMakeSpan::default().include_headers(true)),
+        );
+    Ok(app.into())
+}

src/relay/mod.rs

@@ -72,18 +72,10 @@ pub async fn start_ws(port: Option<&i32>, listen_addr: Option<&String>) {
         Some(port) => port.to_string(),
         None => env::var("APP_PORT").unwrap_or("8000".to_string()),
     };
-    let app_domain = env::var("APP_DOMAIN").unwrap_or("".to_string());
 
     // Log information about the server's configuration.
-    debug!(
+    debug!("Server configured to accept connections on host {app_host}...",);
-        "Server configured to accept connections on host {app_host}...",
+    debug!("Server configured to listen connections on port {app_port}...",);
-    );
-    debug!(
-        "Server configured to listen connections on port {app_port}...",
-    );
-    debug!(
-        "Server configured to listen connections on port {app_domain}...",
-    );
 
     // Based on the environment variable, set the logging level.
     match app_environemt.as_str() {
@@ -130,7 +122,6 @@ pub async fn start_ws(port: Option<&i32>, listen_addr: Option<&String>) {
     }
 }
 
-
 /// This function is an endpoint for the WebSocket route.
 ///
 /// This function is called whenever a client makes a WebSocket request to
@@ -177,7 +168,6 @@ async fn ws_handler(
     ws.on_upgrade(move |socket| handle_socket(socket, addr, shared_state))
 }
 
-
 /// This function is called when a new WebSocket connection is established.
 /// The function takes three arguments:
 ///
@@ -233,7 +223,6 @@ async fn handle_socket(socket: WebSocket, who: SocketAddr, rooms: Arc<RwLock<ser
     client.handle_close(&rooms).await
 }
 
-
 /// This function sets up a signal handler for SIGINT (Ctrl+C) and SIGTERM
 /// (terminate) on Unix platforms. It does nothing on non-Unix platforms.
 ///
@@ -285,4 +274,3 @@ async fn shutdown_signal() {
         _ = terminate => {},
     }
 }
-