wip

.gitea/workflows/test-pr.yml

@@ -12,7 +12,7 @@ jobs:
       uses: https://github.com/actions-rs/cargo@v1
       with:
         command: fmt
-        args: "--check --all"
+        args: "--check -p mgmt-api -p lavina-core -p projection-irc -p projection-xmpp -p sasl"
     - name: cargo check
       uses: https://github.com/actions-rs/cargo@v1
       with:

.pre-commit-config.yaml

@@ -1,21 +0,0 @@
-repos:
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0
-    hooks:
-      - id: check-toml
-      - id: end-of-file-fixer
-      - id: fix-byte-order-marker
-      - id: mixed-line-ending
-      - id: trailing-whitespace
-
-  - repo: local
-    hooks:
-      - id: fmt
-        name: fmt
-        description: Format
-        entry: cargo fmt
-        language: system
-        args:
-          - --all
-        types: [ rust ]
-        pass_filenames: false

.run/Run lavina.run.xml

@@ -1,21 +0,0 @@
-<component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="Run lavina" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
-    <option name="command" value="run --package lavina --bin lavina -- --config config.toml" />
-    <option name="workingDirectory" value="file://$PROJECT_DIR$" />
-    <envs>
-      <env name="RUST_LOG" value="debug" />
-    </envs>
-    <option name="emulateTerminal" value="true" />
-    <option name="channel" value="DEFAULT" />
-    <option name="requiredFeatures" value="true" />
-    <option name="allFeatures" value="false" />
-    <option name="withSudo" value="false" />
-    <option name="buildTarget" value="REMOTE" />
-    <option name="backtrace" value="FULL" />
-    <option name="isRedirectInput" value="false" />
-    <option name="redirectInputPath" value="" />
-    <method v="2">
-      <option name="CARGO.BUILD_TASK_PROVIDER" enabled="true" />
-    </method>
-  </configuration>
-</component>

Cargo.toml

@@ -18,8 +18,8 @@ assert_matches = "1.5.0"
 tokio = { version = "1.24.1", features = ["full"] } # async runtime
 futures-util = "0.3.25"
 anyhow = "1.0.68" # error utils
-nonempty = "0.10.0"
-quick-xml = { version = "0.31.0", features = ["async-tokio"] }
+nonempty = "0.8.1"
+quick-xml = { version = "0.30.0", features = ["async-tokio"] }
 lazy_static = "1.4.0"
 regex = "1.7.1"
 derive_more = "0.99.17"
@@ -27,7 +27,7 @@ clap = { version = "4.4.4", features = ["derive"] }
 serde = { version = "1.0.152", features = ["rc", "serde_derive"] }
 tracing = "0.1.37" # logging & tracing api
 prometheus = { version = "0.13.3", default-features = false }
-base64 = "0.22.0"
+base64 = "0.21.3"
 lavina-core = { path = "crates/lavina-core" }
 tracing-subscriber = "0.3.16"
 sasl = { path = "crates/sasl" }
@@ -62,4 +62,4 @@ clap.workspace = true
 [dev-dependencies]
 assert_matches.workspace = true
 regex = "1.7.1"
-reqwest = { version = "0.12.0", default-features = false }
+reqwest = { version = "0.11", default-features = false }

config.toml

@@ -9,7 +9,6 @@ server_name = "irc.localhost"
 listen_on = "127.0.0.1:5222"
 cert = "./certs/xmpp.pem"
 key = "./certs/xmpp.key"
-hostname = "localhost"
 
 [storage]
 db_path = "db.sqlite"

crates/lavina-core/Cargo.toml

@@ -5,9 +5,8 @@ version.workspace = true
 
 [dependencies]
 anyhow.workspace = true
-sqlx = { version = "0.7.4", features = ["sqlite", "migrate"] }
+sqlx = { version = "0.7.0-alpha.2", features = ["sqlite", "migrate"] }
 serde.workspace = true
 tokio.workspace = true
 tracing.workspace = true
 prometheus.workspace = true
-chrono = "0.4.37"

crates/lavina-core/migrations/2_created_at_for_messages.sql

@@ -1 +0,0 @@
-alter table messages add column created_at text;

crates/lavina-core/src/player.rs

@@ -7,16 +7,19 @@
 //!
 //! A player actor is a serial handler of commands from a single player. It is preferable to run all per-player validations in the player actor,
 //! so that they don't overload the room actor.
-use std::collections::{HashMap, HashSet};
-use std::sync::Arc;
+use std::{
+    collections::{HashMap, HashSet},
+    sync::{Arc, RwLock},
+};
 
 use prometheus::{IntGauge, Registry as MetricsRegistry};
 use serde::Serialize;
-use tokio::sync::mpsc::{channel, Receiver, Sender};
-use tokio::sync::RwLock;
+use tokio::{
+    sync::mpsc::{channel, Receiver, Sender},
+    task::JoinHandle,
+};
 
 use crate::prelude::*;
-use crate::repo::Storage;
 use crate::room::{RoomHandle, RoomId, RoomInfo, RoomRegistry};
 use crate::table::{AnonTable, Key as AnonKey};
 
@@ -42,65 +45,58 @@ impl PlayerId {
     }
 }
 
-/// Node-local identifier of a connection. It is used to address a connection within a player actor.
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct ConnectionId(pub AnonKey);
 
-/// Representation of an authenticated client connection.
-/// The public API available to projections through which all client actions are executed.
-///
-/// The connection is used to send commands to the player actor and to receive updates that might be sent to the client.
 pub struct PlayerConnection {
     pub connection_id: ConnectionId,
     pub receiver: Receiver<Updates>,
     player_handle: PlayerHandle,
 }
 impl PlayerConnection {
-    /// Handled in [Player::send_message].
     pub async fn send_message(&mut self, room_id: RoomId, body: Str) -> Result<()> {
-        let (promise, deferred) = oneshot();
-        let cmd = ClientCommand::SendMessage { room_id, body, promise };
-        self.player_handle.send(ActorCommand::ClientCommand(cmd, self.connection_id.clone())).await;
-        Ok(deferred.await?)
+        self.player_handle
+            .send_message(room_id, self.connection_id.clone(), body)
+            .await
     }
 
-    /// Handled in [Player::join_room].
     pub async fn join_room(&mut self, room_id: RoomId) -> Result<JoinResult> {
-        let (promise, deferred) = oneshot();
-        let cmd = ClientCommand::JoinRoom { room_id, promise };
-        self.player_handle.send(ActorCommand::ClientCommand(cmd, self.connection_id.clone())).await;
-        Ok(deferred.await?)
+        self.player_handle.join_room(room_id, self.connection_id.clone()).await
     }
 
-    /// Handled in [Player::change_topic].
     pub async fn change_topic(&mut self, room_id: RoomId, new_topic: Str) -> Result<()> {
         let (promise, deferred) = oneshot();
-        let cmd = ClientCommand::ChangeTopic {
+        let cmd = Cmd::ChangeTopic {
             room_id,
             new_topic,
             promise,
         };
-        self.player_handle.send(ActorCommand::ClientCommand(cmd, self.connection_id.clone())).await;
+        self.player_handle
+            .send(PlayerCommand::Cmd(cmd, self.connection_id.clone()))
+            .await;
         Ok(deferred.await?)
     }
 
-    /// Handled in [Player::leave_room].
     pub async fn leave_room(&mut self, room_id: RoomId) -> Result<()> {
         let (promise, deferred) = oneshot();
-        let cmd = ClientCommand::LeaveRoom { room_id, promise };
-        self.player_handle.send(ActorCommand::ClientCommand(cmd, self.connection_id.clone())).await;
+        self.player_handle
+            .send(PlayerCommand::Cmd(
+                Cmd::LeaveRoom { room_id, promise },
+                self.connection_id.clone(),
+            ))
+            .await;
         Ok(deferred.await?)
     }
 
     pub async fn terminate(self) {
-        self.player_handle.send(ActorCommand::TerminateConnection(self.connection_id)).await;
+        self.player_handle
+            .send(PlayerCommand::TerminateConnection(self.connection_id))
+            .await;
     }
 
-    /// Handled in [Player::get_rooms].
     pub async fn get_rooms(&self) -> Result<Vec<RoomInfo>> {
         let (promise, deferred) = oneshot();
-        let cmd = ClientCommand::GetRooms { promise };
-        self.player_handle.send(ActorCommand::ClientCommand(cmd, self.connection_id.clone())).await;
+        self.player_handle.send(PlayerCommand::GetRooms(promise)).await;
         Ok(deferred.await?)
     }
 }
@@ -108,13 +104,13 @@ impl PlayerConnection {
 /// Handle to a player actor.
 #[derive(Clone)]
 pub struct PlayerHandle {
-    tx: Sender<ActorCommand>,
+    tx: Sender<PlayerCommand>,
 }
 impl PlayerHandle {
     pub async fn subscribe(&self) -> PlayerConnection {
         let (sender, receiver) = channel(32);
         let (promise, deferred) = oneshot();
-        let cmd = ActorCommand::AddConnection { sender, promise };
+        let cmd = PlayerCommand::AddConnection { sender, promise };
         let _ = self.tx.send(cmd).await;
         let connection_id = deferred.await.unwrap();
         PlayerConnection {
@@ -124,34 +120,45 @@ impl PlayerHandle {
         }
     }
 
-    async fn send(&self, command: ActorCommand) {
-        // TODO either handle the error or doc why it is safe to ignore
+    pub async fn send_message(&self, room_id: RoomId, connection_id: ConnectionId, body: Str) -> Result<()> {
+        let (promise, deferred) = oneshot();
+        let cmd = Cmd::SendMessage { room_id, body, promise };
+        let _ = self.tx.send(PlayerCommand::Cmd(cmd, connection_id)).await;
+        Ok(deferred.await?)
+    }
+
+    pub async fn join_room(&self, room_id: RoomId, connection_id: ConnectionId) -> Result<JoinResult> {
+        let (promise, deferred) = oneshot();
+        let cmd = Cmd::JoinRoom { room_id, promise };
+        let _ = self.tx.send(PlayerCommand::Cmd(cmd, connection_id)).await;
+        Ok(deferred.await?)
+    }
+
+    async fn send(&self, command: PlayerCommand) {
         let _ = self.tx.send(command).await;
     }
 
     pub async fn update(&self, update: Updates) {
-        self.send(ActorCommand::Update(update)).await;
+        self.send(PlayerCommand::Update(update)).await;
     }
 }
 
-/// Messages sent to the player actor.
-enum ActorCommand {
-    /// Establish a new connection.
+enum PlayerCommand {
+    /** Commands from connections */
     AddConnection {
         sender: Sender<Updates>,
         promise: Promise<ConnectionId>,
     },
-    /// Terminate an existing connection.
     TerminateConnection(ConnectionId),
-    /// Player-issued command.
-    ClientCommand(ClientCommand, ConnectionId),
-    /// Update which is sent from a room the player is member of.
+    Cmd(Cmd, ConnectionId),
+    /// Query - responds with a list of rooms the player is a member of.
+    GetRooms(Promise<Vec<RoomInfo>>),
+    /** Events from rooms */
     Update(Updates),
     Stop,
 }
 
-/// Client-issued command sent to the player actor. The actor will respond with by fulfilling the promise.
-pub enum ClientCommand {
+pub enum Cmd {
     JoinRoom {
         room_id: RoomId,
         promise: Promise<JoinResult>,
@@ -170,9 +177,6 @@ pub enum ClientCommand {
         new_topic: Str,
         promise: Promise<()>,
     },
-    GetRooms {
-        promise: Promise<Vec<RoomInfo>>,
-    },
 }
 
 pub enum JoinResult {
@@ -208,43 +212,38 @@ pub enum Updates {
 #[derive(Clone)]
 pub struct PlayerRegistry(Arc<RwLock<PlayerRegistryInner>>);
 impl PlayerRegistry {
-    pub fn empty(
-        room_registry: RoomRegistry,
-        storage: Storage,
-        metrics: &mut MetricsRegistry,
-    ) -> Result<PlayerRegistry> {
+    pub fn empty(room_registry: RoomRegistry, metrics: &mut MetricsRegistry) -> Result<PlayerRegistry> {
         let metric_active_players = IntGauge::new("chat_players_active", "Number of alive player actors")?;
         metrics.register(Box::new(metric_active_players.clone()))?;
         let inner = PlayerRegistryInner {
             room_registry,
-            storage,
             players: HashMap::new(),
             metric_active_players,
         };
         Ok(PlayerRegistry(Arc::new(RwLock::new(inner))))
     }
 
-    pub async fn get_or_launch_player(&mut self, id: &PlayerId) -> PlayerHandle {
-        let mut inner = self.0.write().await;
-        if let Some((handle, _)) = inner.players.get(id) {
+    pub async fn get_or_create_player(&mut self, id: PlayerId) -> PlayerHandle {
+        let mut inner = self.0.write().unwrap();
+        if let Some((handle, _)) = inner.players.get(&id) {
             handle.clone()
         } else {
-            let (handle, fiber) = Player::launch(id.clone(), inner.room_registry.clone(), inner.storage.clone()).await;
-            inner.players.insert(id.clone(), (handle.clone(), fiber));
+            let (handle, fiber) = Player::launch(id.clone(), inner.room_registry.clone());
+            inner.players.insert(id, (handle.clone(), fiber));
             inner.metric_active_players.inc();
             handle
         }
     }
 
-    pub async fn connect_to_player(&mut self, id: &PlayerId) -> PlayerConnection {
-        let player_handle = self.get_or_launch_player(id).await;
+    pub async fn connect_to_player(&mut self, id: PlayerId) -> PlayerConnection {
+        let player_handle = self.get_or_create_player(id).await;
         player_handle.subscribe().await
     }
 
     pub async fn shutdown_all(&mut self) -> Result<()> {
-        let mut inner = self.0.write().await;
+        let mut inner = self.0.write().unwrap();
         for (i, (k, j)) in inner.players.drain() {
-            k.send(ActorCommand::Stop).await;
+            k.send(PlayerCommand::Stop).await;
             drop(k);
             j.await?;
             log::debug!("Player stopped #{i:?}")
@@ -257,8 +256,6 @@ impl PlayerRegistry {
 /// The player registry state representation.
 struct PlayerRegistryInner {
     room_registry: RoomRegistry,
-    storage: Storage,
-    /// Active player actors.
     players: HashMap<PlayerId, (PlayerHandle, JoinHandle<Player>)>,
     metric_active_players: IntGauge,
 }
@@ -266,72 +263,52 @@ struct PlayerRegistryInner {
 /// Player actor inner state representation.
 struct Player {
     player_id: PlayerId,
-    storage_id: u32,
     connections: AnonTable<Sender<Updates>>,
     my_rooms: HashMap<RoomId, RoomHandle>,
     banned_from: HashSet<RoomId>,
-    rx: Receiver<ActorCommand>,
+    rx: Receiver<PlayerCommand>,
     handle: PlayerHandle,
     rooms: RoomRegistry,
-    storage: Storage,
 }
 impl Player {
-    async fn launch(player_id: PlayerId, rooms: RoomRegistry, storage: Storage) -> (PlayerHandle, JoinHandle<Player>) {
+    fn launch(player_id: PlayerId, rooms: RoomRegistry) -> (PlayerHandle, JoinHandle<Player>) {
         let (tx, rx) = channel(32);
         let handle = PlayerHandle { tx };
         let handle_clone = handle.clone();
-        let storage_id = storage.retrieve_user_id_by_name(player_id.as_inner()).await.unwrap().unwrap();
         let player = Player {
             player_id,
-            storage_id,
-            // connections are empty when the actor is just started
             connections: AnonTable::new(),
-            // room handlers will be loaded later in the started task
             my_rooms: HashMap::new(),
-            // TODO implement and load bans
-            banned_from: HashSet::new(),
+            banned_from: HashSet::from([RoomId::from("Empty").unwrap()]),
             rx,
             handle,
             rooms,
-            storage,
         };
         let fiber = tokio::task::spawn(player.main_loop());
         (handle_clone, fiber)
     }
 
     async fn main_loop(mut self) -> Self {
-        let rooms = self.storage.get_rooms_of_a_user(self.storage_id).await.unwrap();
-        for room_id in rooms {
-            let room = self.rooms.get_room(&room_id).await;
-            if let Some(room) = room {
-                self.my_rooms.insert(room_id, room);
-            } else {
-                tracing::error!("Room #{room_id:?} not found");
-            }
-        }
         while let Some(cmd) = self.rx.recv().await {
             match cmd {
-                ActorCommand::AddConnection { sender, promise } => {
+                PlayerCommand::AddConnection { sender, promise } => {
                     let connection_id = self.connections.insert(sender);
                     if let Err(connection_id) = promise.send(ConnectionId(connection_id)) {
                         log::warn!("Connection {connection_id:?} terminated before finalization");
                         self.terminate_connection(connection_id);
                     }
                 }
-                ActorCommand::TerminateConnection(connection_id) => {
+                PlayerCommand::TerminateConnection(connection_id) => {
                     self.terminate_connection(connection_id);
                 }
-                ActorCommand::Update(update) => self.handle_update(update).await,
-                ActorCommand::ClientCommand(cmd, connection_id) => self.handle_cmd(cmd, connection_id).await,
-                ActorCommand::Stop => break,
+                PlayerCommand::GetRooms(promise) => {
+                    let mut response = vec![];
+                    for (_, handle) in &self.my_rooms {
+                        response.push(handle.get_room_info().await);
                     }
+                    let _ = promise.send(response);
                 }
-        log::debug!("Shutting down player actor #{:?}", self.player_id);
-        self
-    }
-
-    /// Handle an incoming update by changing the internal state and broadcasting it to all connections if necessary.
-    async fn handle_update(&mut self, update: Updates) {
+                PlayerCommand::Update(update) => {
                     log::info!(
                         "Player received an update, broadcasting to {} connections",
                         self.connections.len()
@@ -347,6 +324,13 @@ impl Player {
                         let _ = connection.send(update.clone()).await;
                     }
                 }
+                PlayerCommand::Cmd(cmd, connection_id) => self.handle_cmd(cmd, connection_id).await,
+                PlayerCommand::Stop => break,
+            }
+        }
+        log::debug!("Shutting down player actor #{:?}", self.player_id);
+        self
+    }
 
     fn terminate_connection(&mut self, connection_id: ConnectionId) {
         if let None = self.connections.pop(connection_id.0) {
@@ -354,79 +338,52 @@ impl Player {
         }
     }
 
-    /// Dispatches a client command to the appropriate handler.
-    async fn handle_cmd(&mut self, cmd: ClientCommand, connection_id: ConnectionId) {
+    async fn handle_cmd(&mut self, cmd: Cmd, connection_id: ConnectionId) {
         match cmd {
-            ClientCommand::JoinRoom { room_id, promise } => {
-                let result = self.join_room(connection_id, room_id).await;
-                let _ = promise.send(result);
-            }
-            ClientCommand::LeaveRoom { room_id, promise } => {
-                self.leave_room(connection_id, room_id).await;
-                let _ = promise.send(());
-            }
-            ClientCommand::SendMessage { room_id, body, promise } => {
-                self.send_message(connection_id, room_id, body).await;
-                let _ = promise.send(());
-            }
-            ClientCommand::ChangeTopic {
-                room_id,
-                new_topic,
-                promise,
-            } => {
-                self.change_topic(connection_id, room_id, new_topic).await;
-                let _ = promise.send(());
-            }
-            ClientCommand::GetRooms { promise } => {
-                let result = self.get_rooms().await;
-                let _ = promise.send(result);
-            }
-        }
-    }
-
-    async fn join_room(&mut self, connection_id: ConnectionId, room_id: RoomId) -> JoinResult {
+            Cmd::JoinRoom { room_id, promise } => {
                 if self.banned_from.contains(&room_id) {
-            return JoinResult::Banned;
+                    let _ = promise.send(JoinResult::Banned);
+                    return;
                 }
 
                 let room = match self.rooms.get_or_create_room(room_id.clone()).await {
                     Ok(room) => room,
                     Err(e) => {
                         log::error!("Failed to get or create room: {e}");
-                todo!();
+                        return;
                     }
                 };
-        room.add_member(&self.player_id, self.storage_id).await;
-        room.subscribe(&self.player_id, self.handle.clone()).await;
+                room.subscribe(self.player_id.clone(), self.handle.clone()).await;
                 self.my_rooms.insert(room_id.clone(), room.clone());
                 let room_info = room.get_room_info().await;
+                let _ = promise.send(JoinResult::Success(room_info));
                 let update = Updates::RoomJoined {
                     room_id,
                     new_member_id: self.player_id.clone(),
                 };
                 self.broadcast_update(update, connection_id).await;
-        JoinResult::Success(room_info)
             }
-
-    async fn leave_room(&mut self, connection_id: ConnectionId, room_id: RoomId) {
+            Cmd::LeaveRoom { room_id, promise } => {
                 let room = self.my_rooms.remove(&room_id);
                 if let Some(room) = room {
                     room.unsubscribe(&self.player_id).await;
-            room.remove_member(&self.player_id, self.storage_id).await;
+                    let room_info = room.get_room_info().await;
                 }
+                let _ = promise.send(());
                 let update = Updates::RoomLeft {
                     room_id,
                     former_member_id: self.player_id.clone(),
                 };
                 self.broadcast_update(update, connection_id).await;
             }
-
-    async fn send_message(&mut self, connection_id: ConnectionId, room_id: RoomId, body: Str) {
-        let Some(room) = self.my_rooms.get(&room_id) else {
+            Cmd::SendMessage { room_id, body, promise } => {
+                let room = self.rooms.get_room(&room_id).await;
+                if let Some(room) = room {
+                    room.send_message(self.player_id.clone(), body.clone()).await;
+                } else {
                     tracing::info!("no room found");
-            return;
-        };
-        room.send_message(&self.player_id, body.clone()).await;
+                }
+                let _ = promise.send(());
                 let update = Updates::NewMessage {
                     room_id,
                     author_id: self.player_id.clone(),
@@ -434,29 +391,24 @@ impl Player {
                 };
                 self.broadcast_update(update, connection_id).await;
             }
-
-    async fn change_topic(&mut self, connection_id: ConnectionId, room_id: RoomId, new_topic: Str) {
-        let Some(room) = self.my_rooms.get(&room_id) else {
+            Cmd::ChangeTopic {
+                room_id,
+                new_topic,
+                promise,
+            } => {
+                let room = self.rooms.get_room(&room_id).await;
+                if let Some(mut room) = room {
+                    room.set_topic(self.player_id.clone(), new_topic.clone()).await;
+                } else {
                     tracing::info!("no room found");
-            return;
-        };
-        room.set_topic(&self.player_id, new_topic.clone()).await;
+                }
+                let _ = promise.send(());
                 let update = Updates::RoomTopicChanged { room_id, new_topic };
                 self.broadcast_update(update, connection_id).await;
             }
-
-    async fn get_rooms(&self) -> Vec<RoomInfo> {
-        let mut response = vec![];
-        for (_, handle) in &self.my_rooms {
-            response.push(handle.get_room_info().await);
         }
-        response
     }
 
-    /// Broadcasts an update to all connections except the one with the given id.
-    ///
-    /// This is called after handling a client command.
-    /// Sending the update to the connection which sent the command is handled by the connection itself.
     async fn broadcast_update(&self, update: Updates, except: ConnectionId) {
         for (a, b) in &self.connections {
             if ConnectionId(a) == except {

crates/lavina-core/src/repo/mod.rs

@@ -11,9 +11,6 @@ use tokio::sync::Mutex;
 
 use crate::prelude::*;
 
-mod room;
-mod user;
-
 #[derive(Deserialize, Debug, Clone)]
 pub struct StorageConfig {
     pub db_path: String,
@@ -51,7 +48,7 @@ impl Storage {
         Ok(res)
     }
 
-    pub async fn retrieve_room_by_name(&self, name: &str) -> Result<Option<StoredRoom>> {
+    pub async fn retrieve_room_by_name(&mut self, name: &str) -> Result<Option<StoredRoom>> {
         let mut executor = self.conn.lock().await;
         let res = sqlx::query_as(
             "select id, name, topic, message_count
@@ -90,15 +87,14 @@ impl Storage {
             return Err(anyhow!("No such user"));
         };
         sqlx::query(
-            "insert into messages(room_id, id, content, author_id, created_at)
-            values (?, ?, ?, ?, ?);
+            "insert into messages(room_id, id, content, author_id)
+            values (?, ?, ?, ?);
             update rooms set message_count = message_count + 1 where id = ?;",
         )
         .bind(room_id)
         .bind(id)
         .bind(content)
         .bind(author_id)
-        .bind(chrono::Utc::now().to_string())
         .bind(room_id)
         .execute(&mut *executor)
         .await?;

crates/lavina-core/src/repo/room.rs

@@ -1,48 +0,0 @@
-use anyhow::Result;
-
-use crate::repo::Storage;
-
-impl Storage {
-    pub async fn add_room_member(&self, room_id: u32, player_id: u32) -> Result<()> {
-        let mut executor = self.conn.lock().await;
-        sqlx::query(
-            "insert into memberships(user_id, room_id, status)
-            values (?, ?, 1);",
-        )
-        .bind(player_id)
-        .bind(room_id)
-        .execute(&mut *executor)
-        .await?;
-
-        Ok(())
-    }
-
-    pub async fn remove_room_member(&self, room_id: u32, player_id: u32) -> Result<()> {
-        let mut executor = self.conn.lock().await;
-        sqlx::query(
-            "delete from memberships
-            where user_id = ? and room_id = ?;",
-        )
-        .bind(player_id)
-        .bind(room_id)
-        .execute(&mut *executor)
-        .await?;
-
-        Ok(())
-    }
-
-    pub async fn set_room_topic(&mut self, id: u32, topic: &str) -> Result<()> {
-        let mut executor = self.conn.lock().await;
-        sqlx::query(
-            "update rooms
-            set topic = ?
-            where id = ?;",
-        )
-        .bind(topic)
-        .bind(id)
-        .fetch_optional(&mut *executor)
-        .await?;
-
-        Ok(())
-    }
-}

crates/lavina-core/src/repo/user.rs

@@ -1,30 +0,0 @@
-use anyhow::Result;
-
-use crate::repo::Storage;
-use crate::room::RoomId;
-
-impl Storage {
-    pub async fn retrieve_user_id_by_name(&self, name: &str) -> Result<Option<u32>> {
-        let mut executor = self.conn.lock().await;
-        let res: Option<(u32,)> = sqlx::query_as("select u.id from users u where u.name = ?;")
-            .bind(name)
-            .fetch_optional(&mut *executor)
-            .await?;
-
-        Ok(res.map(|(id,)| id))
-    }
-
-    pub async fn get_rooms_of_a_user(&self, user_id: u32) -> Result<Vec<RoomId>> {
-        let mut executor = self.conn.lock().await;
-        let res: Vec<(String,)> = sqlx::query_as(
-            "select r.name
-            from memberships m inner join rooms r on m.room_id = r.id
-            where m.user_id = ?;",
-        )
-        .bind(user_id)
-        .fetch_all(&mut *executor)
-        .await?;
-
-        res.into_iter().map(|(room_id,)| RoomId::from(room_id)).collect()
-    }
-}

crates/lavina-core/src/room.rs

@@ -1,5 +1,4 @@
 //! Domain of rooms — chats with multiple participants.
-use std::collections::HashSet;
 use std::{collections::HashMap, hash::Hash, sync::Arc};
 
 use prometheus::{IntGauge, Registry as MetricRegistry};
@@ -49,9 +48,27 @@ impl RoomRegistry {
 
     pub async fn get_or_create_room(&mut self, room_id: RoomId) -> Result<RoomHandle> {
         let mut inner = self.0.write().await;
-        if let Some(room_handle) = inner.get_or_load_room(&room_id).await? {
+        if let Some(room_handle) = inner.rooms.get(&room_id) {
+            // room was already loaded into memory
+            log::debug!("Room {} was loaded already", &room_id.0);
             Ok(room_handle.clone())
+        } else if let Some(stored_room) = inner.storage.retrieve_room_by_name(&*room_id.0).await? {
+            // room exists, but was not loaded
+            log::debug!("Loading room {}...", &room_id.0);
+            let room = Room {
+                storage_id: stored_room.id,
+                room_id: room_id.clone(),
+                subscriptions: HashMap::new(), // TODO figure out how to populate subscriptions
+                topic: stored_room.topic.into(),
+                message_count: stored_room.message_count,
+                storage: inner.storage.clone(),
+            };
+            let room_handle = RoomHandle(Arc::new(AsyncRwLock::new(room)));
+            inner.rooms.insert(room_id, room_handle.clone());
+            inner.metric_active_rooms.inc();
+            Ok(room_handle)
         } else {
+            // room does not exist, create it and load
             log::debug!("Creating room {}...", &room_id.0);
             let topic = "New room";
             let id = inner.storage.create_new_room(&*room_id.0, &*topic).await?;
@@ -59,7 +76,6 @@ impl RoomRegistry {
                 storage_id: id,
                 room_id: room_id.clone(),
                 subscriptions: HashMap::new(),
-                members: HashSet::new(),
                 topic: topic.into(),
                 message_count: 0,
                 storage: inner.storage.clone(),
@@ -72,8 +88,9 @@ impl RoomRegistry {
     }
 
     pub async fn get_room(&self, room_id: &RoomId) -> Option<RoomHandle> {
-        let mut inner = self.0.write().await;
-        inner.get_or_load_room(room_id).await.unwrap()
+        let inner = self.0.read().await;
+        let res = inner.rooms.get(room_id);
+        res.map(|r| r.clone())
     }
 
     pub async fn get_all_rooms(&self) -> Vec<RoomInfo> {
@@ -96,66 +113,17 @@ struct RoomRegistryInner {
     storage: Storage,
 }
 
-impl RoomRegistryInner {
-    async fn get_or_load_room(&mut self, room_id: &RoomId) -> Result<Option<RoomHandle>> {
-        if let Some(room_handle) = self.rooms.get(room_id) {
-            log::debug!("Room {} was loaded already", &room_id.0);
-            Ok(Some(room_handle.clone()))
-        } else if let Some(stored_room) = self.storage.retrieve_room_by_name(&*room_id.0).await? {
-            log::debug!("Loading room {}...", &room_id.0);
-            let room = Room {
-                storage_id: stored_room.id,
-                room_id: room_id.clone(),
-                subscriptions: HashMap::new(),
-                members: HashSet::new(), // TODO load members from storage
-                topic: stored_room.topic.into(),
-                message_count: stored_room.message_count,
-                storage: self.storage.clone(),
-            };
-            let room_handle = RoomHandle(Arc::new(AsyncRwLock::new(room)));
-            self.rooms.insert(room_id.clone(), room_handle.clone());
-            self.metric_active_rooms.inc();
-            Ok(Some(room_handle))
-        } else {
-            tracing::debug!("Room {} does not exist", &room_id.0);
-            Ok(None)
-        }
-    }
-}
-
 #[derive(Clone)]
 pub struct RoomHandle(Arc<AsyncRwLock<Room>>);
 impl RoomHandle {
-    pub async fn subscribe(&self, player_id: &PlayerId, player_handle: PlayerHandle) {
+    pub async fn subscribe(&self, player_id: PlayerId, player_handle: PlayerHandle) {
         let mut lock = self.0.write().await;
-        tracing::info!("Adding a subscriber to a room");
-        lock.subscriptions.insert(player_id.clone(), player_handle);
-    }
-
-    pub async fn add_member(&self, player_id: &PlayerId, player_storage_id: u32) {
-        let mut lock = self.0.write().await;
-        tracing::info!("Adding a new member to a room");
-        let room_storage_id = lock.storage_id;
-        lock.storage.add_room_member(room_storage_id, player_storage_id).await.unwrap();
-        lock.members.insert(player_id.clone());
-        let update = Updates::RoomJoined {
-            room_id: lock.room_id.clone(),
-            new_member_id: player_id.clone(),
-        };
-        lock.broadcast_update(update, player_id).await;
+        lock.add_subscriber(player_id, player_handle).await;
     }
 
     pub async fn unsubscribe(&self, player_id: &PlayerId) {
         let mut lock = self.0.write().await;
         lock.subscriptions.remove(player_id);
-    }
-
-    pub async fn remove_member(&self, player_id: &PlayerId, player_storage_id: u32) {
-        let mut lock = self.0.write().await;
-        tracing::info!("Removing a member from a room");
-        let room_storage_id = lock.storage_id;
-        lock.storage.remove_room_member(room_storage_id, player_storage_id).await.unwrap();
-        lock.members.remove(player_id);
         let update = Updates::RoomLeft {
             room_id: lock.room_id.clone(),
             former_member_id: player_id.clone(),
@@ -163,7 +131,7 @@ impl RoomHandle {
         lock.broadcast_update(update, player_id).await;
     }
 
-    pub async fn send_message(&self, player_id: &PlayerId, body: Str) {
+    pub async fn send_message(&self, player_id: PlayerId, body: Str) {
         let mut lock = self.0.write().await;
         let res = lock.send_message(player_id, body).await;
         if let Err(err) = res {
@@ -180,51 +148,51 @@ impl RoomHandle {
         }
     }
 
-    pub async fn set_topic(&self, changer_id: &PlayerId, new_topic: Str) {
+    pub async fn set_topic(&mut self, changer_id: PlayerId, new_topic: Str) {
         let mut lock = self.0.write().await;
-        let storage_id = lock.storage_id;
         lock.topic = new_topic.clone();
-        lock.storage.set_room_topic(storage_id, &new_topic).await.unwrap();
         let update = Updates::RoomTopicChanged {
             room_id: lock.room_id.clone(),
             new_topic: new_topic.clone(),
         };
-        lock.broadcast_update(update, changer_id).await;
+        lock.broadcast_update(update, &changer_id).await;
     }
 }
 
 struct Room {
-    /// The numeric node-local id of the room as it is stored in the database.
     storage_id: u32,
-    /// The cluster-global id of the room.
     room_id: RoomId,
-    /// Player actors on the local node which are subscribed to this room's updates.
     subscriptions: HashMap<PlayerId, PlayerHandle>,
-    /// Members of the room.
-    members: HashSet<PlayerId>,
-    /// The total number of messages. Used to calculate the id of the new message.
     message_count: u32,
     topic: Str,
     storage: Storage,
 }
 impl Room {
-    async fn send_message(&mut self, author_id: &PlayerId, body: Str) -> Result<()> {
+    async fn add_subscriber(&mut self, player_id: PlayerId, player_handle: PlayerHandle) {
+        tracing::info!("Adding a subscriber to room");
+        self.subscriptions.insert(player_id.clone(), player_handle);
+        let update = Updates::RoomJoined {
+            room_id: self.room_id.clone(),
+            new_member_id: player_id.clone(),
+        };
+        self.broadcast_update(update, &player_id).await;
+    }
+
+    async fn send_message(&mut self, author_id: PlayerId, body: Str) -> Result<()> {
         tracing::info!("Adding a message to room");
-        self.storage.insert_message(self.storage_id, self.message_count, &body, &*author_id.as_inner()).await?;
+        self.storage
+            .insert_message(self.storage_id, self.message_count, &body, &*author_id.as_inner())
+            .await?;
         self.message_count += 1;
         let update = Updates::NewMessage {
             room_id: self.room_id.clone(),
             author_id: author_id.clone(),
             body,
         };
-        self.broadcast_update(update, author_id).await;
+        self.broadcast_update(update, &author_id).await;
         Ok(())
     }
 
-    /// Broadcasts an update to all players except the one who caused the update.
-    ///
-    /// This is called after handling a client command.
-    /// Sending the update to the player who sent the command is handled by the player actor.
     async fn broadcast_update(&self, update: Updates, except: &PlayerId) {
         tracing::debug!("Broadcasting an update to {} subs", self.subscriptions.len());
         for (player_id, sub) in &self.subscriptions {

crates/lavina-core/src/terminator.rs

@@ -1,10 +1,12 @@
 use crate::prelude::*;
 
+/// A handle to a task that can be gracefully terminated.
 pub struct Terminator {
     signal: Promise<()>,
     completion: JoinHandle<Result<()>>,
 }
 impl Terminator {
+    /// Send a signal to the task to terminate and await its completion.
     pub async fn terminate(self) -> Result<()> {
         match self.signal.send(()) {
             Ok(()) => {}
@@ -14,7 +16,10 @@ impl Terminator {
         Ok(())
     }
 
-    /// Used to spawn managed tasks with support for graceful shutdown
+    /// Spawn a task with support for graceful shutdown.
+    ///
+    /// The launched task must listen for the termination signal and stop gracefully on receiving it.
+    /// The signal is sent by calling the `terminate` method on the returned `Terminator` instance outside the task.
     pub fn spawn<Fun, Fut>(launcher: Fun) -> Terminator
     where
         Fun: FnOnce(Deferred<()>) -> Fut,

crates/projection-irc/rustfmt.toml

@@ -0,0 +1,2 @@
+max_width = 120
+chain_width = 120

crates/projection-irc/src/lib.rs

@@ -30,8 +30,6 @@ mod cap;
 
 use crate::cap::Capabilities;
 
-pub const APP_VERSION: &str = concat!("lavina", "_", env!("CARGO_PKG_VERSION"));
-
 #[derive(Deserialize, Debug, Clone)]
 pub struct ServerConfig {
     pub listen_on: SocketAddr,
@@ -44,7 +42,7 @@ struct RegisteredUser {
     /**
      * Username is mostly unused in modern IRC.
      *
-     * <https://stackoverflow.com/questions/31666247/what-is-the-difference-between-the-nick-username-and-real-name-in-irc-and-wha>
+     * [https://stackoverflow.com/questions/31666247/what-is-the-difference-between-the-nick-username-and-real-name-in-irc-and-wha]
      */
     username: Str,
     realname: Str,
@@ -64,14 +62,9 @@ async fn handle_socket(
     let mut reader: BufReader<ReadHalf> = BufReader::new(reader);
     let mut writer = BufWriter::new(writer);
 
-    pin!(termination);
-    select! {
-        biased;
-        _ = &mut termination =>{
-            log::info!("Socket handling was terminated");
-            return Ok(())
-        },
-        registered_user = handle_registration(&mut reader, &mut writer, &mut storage, &config) =>
+    let registered_user: Result<RegisteredUser> =
+        handle_registration(&mut reader, &mut writer, &mut storage, &config).await;
+
     match registered_user {
         Ok(user) => {
             log::debug!("User registered");
@@ -81,254 +74,11 @@ async fn handle_socket(
             log::debug!("Registration failed: {err}");
         }
     }
-    }
+
     stream.shutdown().await?;
     Ok(())
 }
 
-struct RegistrationState {
-    /// The last received `NICK` message.
-    future_nickname: Option<Str>,
-    /// The last received `USER` message.
-    future_username: Option<(Str, Str)>,
-    enabled_capabilities: Capabilities,
-    /// `CAP LS` or `CAP REQ` was received, but not `CAP END`.
-    cap_negotiation_in_progress: bool,
-    /// The last received `PASS` message.
-    pass: Option<Str>,
-    authentication_started: bool,
-    validated_user: Option<Str>,
-}
-
-impl RegistrationState {
-    fn new() -> RegistrationState {
-        RegistrationState {
-            future_nickname: None,
-            future_username: None,
-            enabled_capabilities: Capabilities::None,
-            cap_negotiation_in_progress: false,
-            pass: None,
-            authentication_started: false,
-            validated_user: None,
-        }
-    }
-
-    /// Handle an incoming message from the client during the registration process.
-    ///
-    /// Returns `Some` if the user is fully registered, `None` if the registration is still in progress.
-    async fn handle_msg(
-        &mut self,
-        msg: ClientMessage,
-        writer: &mut BufWriter<WriteHalf<'_>>,
-        storage: &mut Storage,
-        config: &ServerConfig,
-    ) -> Result<Option<RegisteredUser>> {
-        match msg {
-            ClientMessage::Pass { password } => {
-                self.pass = Some(password);
-                Ok(None)
-            }
-            ClientMessage::Capability { subcommand } => match subcommand {
-                CapabilitySubcommand::List { code: _ } => {
-                    self.cap_negotiation_in_progress = true;
-                    ServerMessage {
-                        tags: vec![],
-                        sender: Some(config.server_name.clone().into()),
-                        body: ServerMessageBody::Cap {
-                            target: self.future_nickname.clone().unwrap_or_else(|| "*".into()),
-                            subcmd: CapSubBody::Ls("sasl=PLAIN".into()),
-                        },
-                    }
-                    .write_async(writer)
-                    .await?;
-                    writer.flush().await?;
-                    Ok(None)
-                }
-                CapabilitySubcommand::Req(caps) => {
-                    self.cap_negotiation_in_progress = true;
-                    let mut acked = vec![];
-                    let mut naked = vec![];
-                    for cap in caps {
-                        if &*cap.name == "sasl" {
-                            if cap.to_disable {
-                                self.enabled_capabilities &= !Capabilities::Sasl;
-                            } else {
-                                self.enabled_capabilities |= Capabilities::Sasl;
-                            }
-                            acked.push(cap);
-                        } else {
-                            naked.push(cap);
-                        }
-                    }
-                    let mut ack_body = String::new();
-                    for cap in acked {
-                        if cap.to_disable {
-                            ack_body.push('-');
-                        }
-                        ack_body += &*cap.name;
-                    }
-                    ServerMessage {
-                        tags: vec![],
-                        sender: Some(config.server_name.clone().into()),
-                        body: ServerMessageBody::Cap {
-                            target: self.future_nickname.clone().unwrap_or_else(|| "*".into()),
-                            subcmd: CapSubBody::Ack(ack_body.into()),
-                        },
-                    }
-                    .write_async(writer)
-                    .await?;
-                    writer.flush().await?;
-                    Ok(None)
-                }
-                CapabilitySubcommand::End => {
-                    let Some((ref username, ref realname)) = self.future_username else {
-                        self.cap_negotiation_in_progress = false;
-                        return Ok(None);
-                    };
-                    let Some(nickname) = self.future_nickname.clone() else {
-                        self.cap_negotiation_in_progress = false;
-                        return Ok(None);
-                    };
-                    let username = username.clone();
-                    let realname = realname.clone();
-                    let candidate_user = RegisteredUser {
-                        nickname: nickname.clone(),
-                        username,
-                        realname,
-                    };
-                    self.finalize_auth(candidate_user, writer, storage, config).await
-                }
-            },
-            ClientMessage::Nick { nickname } => {
-                if self.cap_negotiation_in_progress {
-                    self.future_nickname = Some(nickname);
-                    Ok(None)
-                } else if let Some((username, realname)) = &self.future_username.clone() {
-                    let candidate_user = RegisteredUser {
-                        nickname: nickname.clone(),
-                        username: username.clone(),
-                        realname: realname.clone(),
-                    };
-                    self.finalize_auth(candidate_user, writer, storage, config).await
-                } else {
-                    self.future_nickname = Some(nickname);
-                    Ok(None)
-                }
-            }
-            ClientMessage::User { username, realname } => {
-                if self.cap_negotiation_in_progress {
-                    self.future_username = Some((username, realname));
-                    Ok(None)
-                } else if let Some(nickname) = self.future_nickname.clone() {
-                    let candidate_user = RegisteredUser {
-                        nickname: nickname.clone(),
-                        username,
-                        realname,
-                    };
-                    self.finalize_auth(candidate_user, writer, storage, config).await
-                } else {
-                    self.future_username = Some((username, realname));
-                    Ok(None)
-                }
-            }
-            ClientMessage::Authenticate(body) => {
-                if !self.authentication_started {
-                    tracing::debug!("Received authentication request");
-                    if &*body == "PLAIN" {
-                        tracing::debug!("Authentication request with method PLAIN");
-                        self.authentication_started = true;
-                        ServerMessage {
-                            tags: vec![],
-                            sender: Some(config.server_name.clone().into()),
-                            body: ServerMessageBody::Authenticate("+".into()),
-                        }
-                        .write_async(writer)
-                        .await?;
-                        writer.flush().await?;
-                        Ok(None)
-                    } else {
-                        let target = self.future_nickname.clone().unwrap_or_else(|| "*".into());
-                        sasl_fail_message(config.server_name.clone(), target, "Unsupported mechanism".into())
-                            .write_async(writer)
-                            .await?;
-                        writer.flush().await?;
-                        Ok(None)
-                    }
-                } else {
-                    let body = AuthBody::from_str(body.as_bytes())?;
-                    if let Err(e) = auth_user(storage, &body.login, &body.password).await {
-                        tracing::warn!("Authentication failed: {:?}", e);
-                        let target = self.future_nickname.clone().unwrap_or_else(|| "*".into());
-                        sasl_fail_message(config.server_name.clone(), target, "Bad credentials".into())
-                            .write_async(writer)
-                            .await?;
-                        writer.flush().await?;
-                        Ok(None)
-                    } else {
-                        let login: Str = body.login.into();
-                        self.validated_user = Some(login.clone());
-                        ServerMessage {
-                            tags: vec![],
-                            sender: Some(config.server_name.clone().into()),
-                            body: ServerMessageBody::N900LoggedIn {
-                                nick: login.clone(),
-                                address: login.clone(),
-                                account: login.clone(),
-                                message: format!("You are now logged in as {}", login).into(),
-                            },
-                        }
-                        .write_async(writer)
-                        .await?;
-                        ServerMessage {
-                            tags: vec![],
-                            sender: Some(config.server_name.clone().into()),
-                            body: ServerMessageBody::N903SaslSuccess {
-                                nick: login.clone(),
-                                message: "SASL authentication successful".into(),
-                            },
-                        }
-                        .write_async(writer)
-                        .await?;
-                        writer.flush().await?;
-                        Ok(None)
-                    }
-                }
-
-                // TODO handle abortion of authentication
-            }
-            _ => Ok(None),
-        }
-    }
-
-    async fn finalize_auth(
-        &mut self,
-        candidate_user: RegisteredUser,
-        writer: &mut BufWriter<WriteHalf<'_>>,
-        storage: &mut Storage,
-        config: &ServerConfig,
-    ) -> Result<Option<RegisteredUser>> {
-        if self.enabled_capabilities.contains(Capabilities::Sasl)
-            && self.validated_user.as_ref() == Some(&candidate_user.nickname)
-        {
-            Ok(Some(candidate_user))
-        } else {
-            let Some(candidate_password) = &self.pass else {
-                sasl_fail_message(
-                    config.server_name.clone(),
-                    candidate_user.nickname.clone(),
-                    "User credentials was not provided".into(),
-                )
-                .write_async(writer)
-                .await?;
-                writer.flush().await?;
-                return Ok(None);
-            };
-            auth_user(storage, &*candidate_user.nickname, &*candidate_password).await?;
-            Ok(Some(candidate_user))
-        }
-    }
-}
-
 async fn handle_registration<'a>(
     reader: &mut BufReader<ReadHalf<'a>>,
     writer: &mut BufWriter<WriteHalf<'a>>,
@@ -337,7 +87,14 @@ async fn handle_registration<'a>(
 ) -> Result<RegisteredUser> {
     let mut buffer = vec![];
 
-    let mut state = RegistrationState::new();
+    let mut future_nickname: Option<Str> = None;
+    let mut future_username: Option<(Str, Str)> = None;
+    let mut enabled_capabilities = Capabilities::None;
+    let mut cap_negotiation_in_progress = false; // if true, expect `CAP END` to complete registration
+
+    let mut pass: Option<Str> = None;
+    let mut authentication_started = false;
+    let mut validated_user = None;
 
     let user = loop {
         let res = read_irc_message(reader, &mut buffer).await;
@@ -368,8 +125,171 @@ async fn handle_registration<'a>(
             }
         };
         tracing::debug!("Incoming IRC message: {msg:?}");
-        if let Some(user) = state.handle_msg(msg, writer, storage, config).await? {
-            break Ok(user);
+        match msg {
+            ClientMessage::Pass { password } => {
+                pass = Some(password);
+            }
+            ClientMessage::Capability { subcommand } => match subcommand {
+                CapabilitySubcommand::List { code: _ } => {
+                    cap_negotiation_in_progress = true;
+                    ServerMessage {
+                        tags: vec![],
+                        sender: Some(config.server_name.clone().into()),
+                        body: ServerMessageBody::Cap {
+                            target: future_nickname.clone().unwrap_or_else(|| "*".into()),
+                            subcmd: CapSubBody::Ls("sasl=PLAIN".into()),
+                        },
+                    }
+                    .write_async(writer)
+                    .await?;
+                    writer.flush().await?;
+                }
+                CapabilitySubcommand::Req(caps) => {
+                    cap_negotiation_in_progress = true;
+                    let mut acked = vec![];
+                    let mut naked = vec![];
+                    for cap in caps {
+                        if &*cap.name == "sasl" {
+                            if cap.to_disable {
+                                enabled_capabilities &= !Capabilities::Sasl;
+                            } else {
+                                enabled_capabilities |= Capabilities::Sasl;
+                            }
+                            acked.push(cap);
+                        } else {
+                            naked.push(cap);
+                        }
+                    }
+                    let mut ack_body = String::new();
+                    for cap in acked {
+                        if cap.to_disable {
+                            ack_body.push('-');
+                        }
+                        ack_body += &*cap.name;
+                    }
+                    ServerMessage {
+                        tags: vec![],
+                        sender: Some(config.server_name.clone().into()),
+                        body: ServerMessageBody::Cap {
+                            target: future_nickname.clone().unwrap_or_else(|| "*".into()),
+                            subcmd: CapSubBody::Ack(ack_body.into()),
+                        },
+                    }
+                    .write_async(writer)
+                    .await?;
+                    writer.flush().await?;
+                }
+                CapabilitySubcommand::End => {
+                    let Some((username, realname)) = future_username else {
+                        todo!()
+                    };
+                    let Some(nickname) = future_nickname.clone() else {
+                        todo!()
+                    };
+                    let candidate_user = RegisteredUser {
+                        nickname,
+                        username,
+                        realname,
+                    };
+                    if enabled_capabilities.contains(Capabilities::Sasl)
+                        && validated_user.as_ref() == Some(&candidate_user.nickname)
+                    {
+                        break Ok(candidate_user);
+                    } else {
+                        let Some(candidate_password) = pass else {
+                            todo!();
+                        };
+                        auth_user(storage, &*candidate_user.nickname, &*candidate_password).await?;
+                        break Ok(candidate_user);
+                    }
+                }
+            },
+            ClientMessage::Nick { nickname } => {
+                if cap_negotiation_in_progress {
+                    future_nickname = Some(nickname);
+                } else if let Some((username, realname)) = future_username.clone() {
+                    let candidate_user = RegisteredUser {
+                        nickname,
+                        username,
+                        realname,
+                    };
+                    let Some(candidate_password) = pass else {
+                        todo!();
+                    };
+                    auth_user(storage, &*candidate_user.nickname, &*candidate_password).await?;
+                    break Ok(candidate_user);
+                } else {
+                    future_nickname = Some(nickname);
+                }
+            }
+            ClientMessage::User { username, realname } => {
+                if cap_negotiation_in_progress {
+                    future_username = Some((username, realname));
+                } else if let Some(nickname) = future_nickname.clone() {
+                    let candidate_user = RegisteredUser {
+                        nickname,
+                        username,
+                        realname,
+                    };
+                    let Some(candidate_password) = pass else {
+                        todo!();
+                    };
+                    auth_user(storage, &*candidate_user.nickname, &*candidate_password).await?;
+                    break Ok(candidate_user);
+                } else {
+                    future_username = Some((username, realname));
+                }
+            }
+            ClientMessage::Authenticate(body) => {
+                if !authentication_started {
+                    tracing::debug!("Received authentication request");
+                    if &*body == "PLAIN" {
+                        tracing::debug!("Authentication request with method PLAIN");
+                        authentication_started = true;
+                        ServerMessage {
+                            tags: vec![],
+                            sender: Some(config.server_name.clone().into()),
+                            body: ServerMessageBody::Authenticate("+".into()),
+                        }
+                        .write_async(writer)
+                        .await?;
+                        writer.flush().await?;
+                    } else {
+                        // TODO respond with 904
+                        todo!();
+                    }
+                } else {
+                    let body = AuthBody::from_str(body.as_bytes())?;
+                    auth_user(storage, &body.login, &body.password).await?;
+                    let login: Str = body.login.into();
+                    validated_user = Some(login.clone());
+                    ServerMessage {
+                        tags: vec![],
+                        sender: Some(config.server_name.clone().into()),
+                        body: ServerMessageBody::N900LoggedIn {
+                            nick: login.clone(),
+                            address: login.clone(),
+                            account: login.clone(),
+                            message: format!("You are now logged in as {}", login).into(),
+                        },
+                    }
+                    .write_async(writer)
+                    .await?;
+                    ServerMessage {
+                        tags: vec![],
+                        sender: Some(config.server_name.clone().into()),
+                        body: ServerMessageBody::N903SaslSuccess {
+                            nick: login.clone(),
+                            message: "SASL authentication successful".into(),
+                        },
+                    }
+                    .write_async(writer)
+                    .await?;
+                    writer.flush().await?;
+                }
+                // TODO handle abortion of authentication
+            }
+            _ => {}
         }
         buffer.clear();
     }?;
@@ -377,14 +297,6 @@ async fn handle_registration<'a>(
     Ok(user)
 }
 
-fn sasl_fail_message(sender: Str, nick: Str, text: Str) -> ServerMessage {
-    ServerMessage {
-        tags: vec![],
-        sender: Some(sender),
-        body: ServerMessageBody::N904SaslFail { nick, text },
-    }
-}
-
 async fn auth_user(storage: &mut Storage, login: &str, plain_password: &str) -> Result<()> {
     let stored_user = storage.retrieve_user_by_name(login).await?;
 
@@ -418,15 +330,14 @@ async fn handle_registered_socket<'a>(
     log::info!("Handling registered user: {user:?}");
 
     let player_id = PlayerId::from(user.nickname.clone())?;
-    let mut connection = players.connect_to_player(&player_id).await;
-    let text: Str = format!("Welcome to {} Server", &config.server_name).into();
+    let mut connection = players.connect_to_player(player_id.clone()).await;
 
     ServerMessage {
         tags: vec![],
         sender: Some(config.server_name.clone()),
         body: ServerMessageBody::N001Welcome {
             client: user.nickname.clone(),
-            text: text.clone(),
+            text: "Welcome to Kek Server".into(),
         },
     }
     .write_async(writer)
@@ -436,7 +347,7 @@ async fn handle_registered_socket<'a>(
         sender: Some(config.server_name.clone()),
         body: ServerMessageBody::N002YourHost {
             client: user.nickname.clone(),
-            text: text.clone(),
+            text: "Welcome to Kek Server".into(),
         },
     }
     .write_async(writer)
@@ -446,7 +357,7 @@ async fn handle_registered_socket<'a>(
         sender: Some(config.server_name.clone()),
         body: ServerMessageBody::N003Created {
             client: user.nickname.clone(),
-            text: text.clone(),
+            text: "Welcome to Kek Server".into(),
         },
     }
     .write_async(writer)
@@ -457,7 +368,7 @@ async fn handle_registered_socket<'a>(
         body: ServerMessageBody::N004MyInfo {
             client: user.nickname.clone(),
             hostname: config.server_name.clone(),
-            softname: APP_VERSION.into(),
+            softname: "kek-0.1.alpha.3".into(),
         },
     }
     .write_async(writer)

crates/projection-irc/tests/lib.rs

@@ -1,5 +1,3 @@
-use std::io::ErrorKind;
-use std::net::SocketAddr;
 use std::time::Duration;
 
 use anyhow::{anyhow, Result};
@@ -10,8 +8,8 @@ use tokio::net::TcpStream;
 
 use lavina_core::repo::{Storage, StorageConfig};
 use lavina_core::{player::PlayerRegistry, room::RoomRegistry};
-use projection_irc::APP_VERSION;
 use projection_irc::{launch, read_irc_message, RunningServer, ServerConfig};
+
 struct TestScope<'a> {
     reader: BufReader<ReadHalf<'a>>,
     writer: WriteHalf<'a>,
@@ -48,31 +46,6 @@ impl<'a> TestScope<'a> {
         Ok(())
     }
 
-    async fn expect_that(&mut self, validate: impl FnOnce(&str) -> bool) -> Result<()> {
-        let len = tokio::time::timeout(self.timeout, read_irc_message(&mut self.reader, &mut self.buffer)).await??;
-        let msg = std::str::from_utf8(&self.buffer[..len - 2])?;
-        if !validate(msg) {
-            return Err(anyhow!("unexpected message: {:?}", msg));
-        }
-        self.buffer.clear();
-        Ok(())
-    }
-
-    async fn expect_server_introduction(&mut self, nick: &str) -> Result<()> {
-        self.expect(&format!(":testserver 001 {nick} :Welcome to testserver Server")).await?;
-        self.expect(&format!(":testserver 002 {nick} :Welcome to testserver Server")).await?;
-        self.expect(&format!(":testserver 003 {nick} :Welcome to testserver Server")).await?;
-        self.expect(&format!(
-            ":testserver 004 {nick} testserver {APP_VERSION} r CFILPQbcefgijklmnopqrstvz"
-        ))
-        .await?;
-        self.expect(&format!(
-            ":testserver 005 {nick} CHANTYPES=# :are supported by this server"
-        ))
-        .await?;
-        Ok(())
-    }
-
     async fn expect_eof(&mut self) -> Result<()> {
         let mut buf = [0; 1];
         let len = tokio::time::timeout(self.timeout, self.reader.read(&mut buf)).await??;
@@ -111,36 +84,7 @@ impl TestServer {
         })
         .await?;
         let rooms = RoomRegistry::new(&mut metrics, storage.clone()).unwrap();
-        let players = PlayerRegistry::empty(rooms.clone(), storage.clone(), &mut metrics).unwrap();
-        let server = launch(config, players.clone(), rooms.clone(), metrics.clone(), storage.clone()).await.unwrap();
-        Ok(TestServer {
-            metrics,
-            storage,
-            rooms,
-            players,
-            server,
-        })
-    }
-
-    async fn reboot(mut self) -> Result<TestServer> {
-        let config = ServerConfig {
-            listen_on: "127.0.0.1:0".parse().unwrap(),
-            server_name: "testserver".into(),
-        };
-        let TestServer {
-            mut metrics,
-            mut storage,
-            rooms,
-            mut players,
-            server,
-        } = self;
-        server.terminate().await?;
-        players.shutdown_all().await.unwrap();
-        drop(players);
-        drop(rooms);
-        let mut metrics = MetricsRegistry::new();
-        let rooms = RoomRegistry::new(&mut metrics, storage.clone()).unwrap();
-        let players = PlayerRegistry::empty(rooms.clone(), storage.clone(), &mut metrics).unwrap();
+        let players = PlayerRegistry::empty(rooms.clone(), &mut metrics).unwrap();
         let server = launch(config, players.clone(), rooms.clone(), metrics.clone(), storage.clone()).await.unwrap();
         Ok(TestServer {
             metrics,
@@ -167,7 +111,11 @@ async fn scenario_basic() -> Result<()> {
     s.send("PASS password").await?;
     s.send("NICK tester").await?;
     s.send("USER UserName 0 * :Real Name").await?;
-    s.expect_server_introduction("tester").await?;
+    s.expect(":testserver 001 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 002 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 003 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 004 tester testserver kek-0.1.alpha.3 r CFILPQbcefgijklmnopqrstvz").await?;
+    s.expect(":testserver 005 tester CHANTYPES=# :are supported by this server").await?;
     s.expect_nothing().await?;
     s.send("QUIT :Leaving").await?;
     s.expect(":testserver ERROR :Leaving the server").await?;
@@ -181,202 +129,6 @@ async fn scenario_basic() -> Result<()> {
     Ok(())
 }
 
-#[tokio::test]
-async fn scenario_join_and_reboot() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-
-    // Open a connection and join a channel
-
-    s.send("PASS password").await?;
-    s.send("NICK tester").await?;
-    s.send("USER UserName 0 * :Real Name").await?;
-    s.expect_server_introduction("tester").await?;
-    s.expect_nothing().await?;
-    s.send("JOIN #test").await?;
-    s.expect(":tester JOIN #test").await?;
-    s.expect(":testserver 332 tester #test :New room").await?;
-    s.expect(":testserver 353 tester = #test :tester").await?;
-    s.expect(":testserver 366 tester #test :End of /NAMES list").await?;
-    s.send("PRIVMSG #test :Hello").await?;
-    s.send("QUIT :Leaving").await?;
-    s.expect(":testserver ERROR :Leaving the server").await?;
-    s.expect_eof().await?;
-    stream.shutdown().await?;
-
-    // Open a new connection and expect to be force-joined to the channel
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-
-    async fn test(s: &mut TestScope<'_>) -> Result<()> {
-        s.send("PASS password").await?;
-        s.send("NICK tester").await?;
-        s.send("USER UserName 0 * :Real Name").await?;
-        s.expect_server_introduction("tester").await?;
-        s.expect(":tester JOIN #test").await?;
-        s.expect(":testserver 332 tester #test :New room").await?;
-        s.expect(":testserver 353 tester = #test :tester").await?;
-        s.expect(":testserver 366 tester #test :End of /NAMES list").await?;
-        s.send("QUIT :Leaving").await?;
-        s.expect(":testserver ERROR :Leaving the server").await?;
-        s.expect_eof().await?;
-        Ok(())
-    }
-    test(&mut s).await?;
-    stream.shutdown().await?;
-
-    // Reboot the server
-
-    let server = server.reboot().await?;
-
-    // Open a new connection and expect to be force-joined to the channel
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-
-    test(&mut s).await?;
-    stream.shutdown().await?;
-
-    // wrap up
-
-    server.server.terminate().await?;
-    Ok(())
-}
-
-#[tokio::test]
-async fn scenario_force_join_msg() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream1 = TcpStream::connect(server.server.addr).await?;
-    let mut s1 = TestScope::new(&mut stream1);
-    let mut stream2 = TcpStream::connect(server.server.addr).await?;
-    let mut s2 = TestScope::new(&mut stream2);
-
-    s1.send("PASS password").await?;
-    s1.send("NICK tester").await?;
-    s1.send("USER UserName 0 * :Real Name").await?;
-    s1.expect_server_introduction("tester").await?;
-    s1.expect_nothing().await?;
-
-    s2.send("PASS password").await?;
-    s2.send("NICK tester").await?;
-    s2.send("USER UserName 0 * :Real Name").await?;
-    s2.expect_server_introduction("tester").await?;
-    s2.expect_nothing().await?;
-
-    // We join the channel from the first connection
-    s1.send("JOIN #test").await?;
-    s1.expect(":tester JOIN #test").await?;
-    s1.expect(":testserver 332 tester #test :New room").await?;
-    s1.expect(":testserver 353 tester = #test :tester").await?;
-    s1.expect(":testserver 366 tester #test :End of /NAMES list").await?;
-
-    // And the second connection should receive the JOIN message (forced JOIN)
-    s2.expect(":tester JOIN #test").await?;
-    s2.expect(":testserver 332 tester #test :New room").await?;
-    s2.expect(":testserver 353 tester = #test :tester").await?;
-    s2.expect(":testserver 366 tester #test :End of /NAMES list").await?;
-
-    // We send a message to the channel from the second connection
-    s2.send("PRIVMSG #test :Hello").await?;
-    // We should not receive an acknowledgement from the server
-    s2.expect_nothing().await?;
-    // But we should receive this message from the first connection
-    s1.expect(":tester PRIVMSG #test :Hello").await?;
-
-    s1.send("QUIT :Leaving").await?;
-    s1.expect(":testserver ERROR :Leaving the server").await?;
-    s1.expect_eof().await?;
-
-    // Closing a connection does not kick you from the channel on a different connection
-    s2.expect_nothing().await?;
-
-    s2.send("QUIT :Leaving").await?;
-    s2.expect(":testserver ERROR :Leaving the server").await?;
-    s2.expect_eof().await?;
-
-    stream1.shutdown().await?;
-    stream2.shutdown().await?;
-
-    // wrap up
-
-    server.server.terminate().await?;
-    Ok(())
-}
-
-#[tokio::test]
-async fn scenario_two_users() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester1").await?;
-    server.storage.set_password("tester1", "password").await?;
-    server.storage.create_user("tester2").await?;
-    server.storage.set_password("tester2", "password").await?;
-
-    let mut stream1 = TcpStream::connect(server.server.addr).await?;
-    let mut s1 = TestScope::new(&mut stream1);
-    let mut stream2 = TcpStream::connect(server.server.addr).await?;
-    let mut s2 = TestScope::new(&mut stream2);
-
-    s1.send("PASS password").await?;
-    s1.send("NICK tester1").await?;
-    s1.send("USER UserName 0 * :Real Name").await?;
-    s1.expect_server_introduction("tester1").await?;
-    s1.expect_nothing().await?;
-
-    s2.send("PASS password").await?;
-    s2.send("NICK tester2").await?;
-    s2.send("USER UserName 0 * :Real Name").await?;
-    s2.expect_server_introduction("tester2").await?;
-    s2.expect_nothing().await?;
-
-    // Join the channel from the first user
-    s1.send("JOIN #test").await?;
-    s1.expect(":tester1 JOIN #test").await?;
-    s1.expect(":testserver 332 tester1 #test :New room").await?;
-    s1.expect(":testserver 353 tester1 = #test :tester1").await?;
-    s1.expect(":testserver 366 tester1 #test :End of /NAMES list").await?;
-    // Then join the channel from the second user
-    s2.send("JOIN #test").await?;
-    s2.expect(":tester2 JOIN #test").await?;
-    s2.expect(":testserver 332 tester2 #test :New room").await?;
-    s2.expect_that(|msg| {
-        msg == ":testserver 353 tester2 = #test :tester1 tester2"
-            || msg == ":testserver 353 tester2 = #test :tester2 tester1"
-    })
-    .await?;
-    s2.expect(":testserver 366 tester2 #test :End of /NAMES list").await?;
-    // The first user should receive the JOIN message from the second user
-    s1.expect(":tester2 JOIN #test").await?;
-    s1.expect_nothing().await?;
-    s2.expect_nothing().await?;
-    // Send a message from the second user
-    s2.send("PRIVMSG #test :Hello").await?;
-    // The first user should receive the message
-    s1.expect(":tester2 PRIVMSG #test :Hello").await?;
-    // Leave the channel from the first user
-    s1.send("PART #test").await?;
-    s1.expect(":tester1 PART #test").await?;
-    // The second user should receive the PART message
-    s2.expect(":tester1 PART #test").await?;
-    Ok(())
-}
-
 /*
 IRC SASL doc: https://ircv3.net/specs/extensions/sasl-3.1.html
 AUTHENTICATE doc: https://modern.ircdocs.horse/#authenticate-message
@@ -407,46 +159,11 @@ async fn scenario_cap_full_negotiation() -> Result<()> {
 
     s.send("CAP END").await?;
 
-    s.expect_server_introduction("tester").await?;
-    s.expect_nothing().await?;
-    s.send("QUIT :Leaving").await?;
-    s.expect(":testserver ERROR :Leaving the server").await?;
-    s.expect_eof().await?;
-
-    stream.shutdown().await?;
-
-    // wrap up
-
-    server.server.terminate().await?;
-    Ok(())
-}
-
-#[tokio::test]
-async fn scenario_cap_full_negotiation_nick_last() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-
-    s.send("CAP LS 302").await?;
-    s.expect(":testserver CAP * LS :sasl=PLAIN").await?;
-    s.send("CAP REQ :sasl").await?;
-    s.expect(":testserver CAP * ACK :sasl").await?;
-    s.send("AUTHENTICATE PLAIN").await?;
-    s.expect(":testserver AUTHENTICATE +").await?;
-    s.send("AUTHENTICATE dGVzdGVyAHRlc3RlcgBwYXNzd29yZA==").await?; // base64-encoded 'tester\x00tester\x00password'
-    s.expect(":testserver 900 tester tester tester :You are now logged in as tester").await?;
-    s.expect(":testserver 903 tester :SASL authentication successful").await?;
-    s.send("CAP END").await?;
-    s.send("USER UserName 0 * :Real Name").await?;
-    s.send("NICK tester").await?;
-
-    s.expect_server_introduction("tester").await?;
+    s.expect(":testserver 001 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 002 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 003 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 004 tester testserver kek-0.1.alpha.3 r CFILPQbcefgijklmnopqrstvz").await?;
+    s.expect(":testserver 005 tester CHANTYPES=# :are supported by this server").await?;
     s.expect_nothing().await?;
     s.send("QUIT :Leaving").await?;
     s.expect(":testserver ERROR :Leaving the server").await?;
@@ -484,7 +201,11 @@ async fn scenario_cap_short_negotiation() -> Result<()> {
 
     s.send("CAP END").await?;
 
-    s.expect_server_introduction("tester").await?;
+    s.expect(":testserver 001 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 002 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 003 tester :Welcome to Kek Server").await?;
+    s.expect(":testserver 004 tester testserver kek-0.1.alpha.3 r CFILPQbcefgijklmnopqrstvz").await?;
+    s.expect(":testserver 005 tester CHANTYPES=# :are supported by this server").await?;
     s.expect_nothing().await?;
     s.send("QUIT :Leaving").await?;
     s.expect(":testserver ERROR :Leaving the server").await?;
@@ -497,72 +218,3 @@ async fn scenario_cap_short_negotiation() -> Result<()> {
     server.server.terminate().await?;
     Ok(())
 }
-
-#[tokio::test]
-async fn scenario_cap_sasl_fail() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-
-    s.send("CAP LS 302").await?;
-    s.send("NICK tester").await?;
-    s.send("USER UserName 0 * :Real Name").await?;
-    s.expect(":testserver CAP * LS :sasl=PLAIN").await?;
-    s.send("CAP REQ :sasl").await?;
-    s.expect(":testserver CAP tester ACK :sasl").await?;
-    s.send("AUTHENTICATE SHA256").await?;
-    s.expect(":testserver 904 tester :Unsupported mechanism").await?;
-    s.send("AUTHENTICATE PLAIN").await?;
-    s.expect(":testserver AUTHENTICATE +").await?;
-    s.send("AUTHENTICATE dGVzdGVyAHRlc3RlcgBwYXNzd29yZDE=").await?;
-    s.expect(":testserver 904 tester :Bad credentials").await?;
-    s.send("AUTHENTICATE dGVzdGVyAHRlc3RlcgBwYXNzd29yZA==").await?; // base64-encoded 'tester\x00tester\x00password'
-    s.expect(":testserver 900 tester tester tester :You are now logged in as tester").await?;
-    s.expect(":testserver 903 tester :SASL authentication successful").await?;
-
-    s.send("CAP END").await?;
-
-    s.expect_server_introduction("tester").await?;
-    s.expect_nothing().await?;
-    s.send("QUIT :Leaving").await?;
-    s.expect(":testserver ERROR :Leaving the server").await?;
-    s.expect_eof().await?;
-
-    stream.shutdown().await?;
-
-    // wrap up
-
-    server.server.terminate().await?;
-    Ok(())
-}
-
-#[tokio::test]
-async fn terminate_socket_scenario() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-
-    s.send("NICK tester").await?;
-    s.send("CAP REQ :sasl").await?;
-    s.send("USER UserName 0 * :Real Name").await?;
-    s.expect(":testserver CAP tester ACK :sasl").await?;
-    s.send("AUTHENTICATE PLAIN").await?;
-    s.expect(":testserver AUTHENTICATE +").await?;
-
-    server.server.terminate().await?;
-    assert_eq!(stream.read_u8().await.unwrap_err().kind(), ErrorKind::UnexpectedEof);
-
-    Ok(())
-}

crates/projection-xmpp/rustfmt.toml

@@ -0,0 +1,2 @@
+max_width = 120
+chain_width = 120

crates/projection-xmpp/src/iq.rs

@@ -2,9 +2,9 @@
 
 use quick_xml::events::Event;
 
-use lavina_core::room::{RoomId, RoomRegistry};
-use proto_xmpp::bind::{BindResponse, Jid, Name, Server};
-use proto_xmpp::client::{Iq, IqError, IqErrorType, IqType};
+use lavina_core::room::RoomRegistry;
+use proto_xmpp::bind::{BindResponse, Jid, Name, Resource, Server};
+use proto_xmpp::client::{Iq, IqType};
 use proto_xmpp::disco::{Feature, Identity, InfoQuery, Item, ItemQuery};
 use proto_xmpp::roster::RosterQuery;
 use proto_xmpp::session::Session;
@@ -17,16 +17,16 @@ use proto_xmpp::xml::ToXml;
 impl<'a> XmppConnection<'a> {
     pub async fn handle_iq(&self, output: &mut Vec<Event<'static>>, iq: Iq<IqClientBody>) {
         match iq.body {
-            IqClientBody::Bind(_) => {
+            IqClientBody::Bind(b) => {
                 let req = Iq {
                     from: None,
                     id: iq.id,
                     to: None,
                     r#type: IqType::Result,
                     body: BindResponse(Jid {
-                        name: Some(self.user.xmpp_name.clone()),
-                        server: Server(self.hostname.clone()),
-                        resource: Some(self.user.xmpp_resource.clone()),
+                        name: Some(Name("darova".into())),
+                        server: Server("localhost".into()),
+                        resource: Some(Resource("kek".into())),
                     }),
                 };
                 req.serialize(output);
@@ -52,9 +52,7 @@ impl<'a> XmppConnection<'a> {
                 req.serialize(output);
             }
             IqClientBody::DiscoInfo(info) => {
-                let response = self.disco_info(iq.to.as_ref(), &info).await;
-                match response {
-                    Ok(response) => {
+                let response = disco_info(iq.to.as_deref(), &info);
                 let req = Iq {
                     from: iq.to,
                     id: iq.id,
@@ -64,20 +62,8 @@ impl<'a> XmppConnection<'a> {
                 };
                 req.serialize(output);
             }
-                    Err(response) => {
-                        let req = Iq {
-                            from: iq.to,
-                            id: iq.id,
-                            to: None,
-                            r#type: IqType::Error,
-                            body: response,
-                        };
-                        req.serialize(output);
-                    }
-                }
-            }
             IqClientBody::DiscoItem(item) => {
-                let response = self.disco_items(iq.to.as_ref(), &item, self.rooms).await;
+                let response = disco_items(iq.to.as_deref(), &item, self.rooms).await;
                 let req = Iq {
                     from: iq.to,
                     id: iq.id,
@@ -93,25 +79,19 @@ impl<'a> XmppConnection<'a> {
                     id: iq.id,
                     to: None,
                     r#type: IqType::Error,
-                    body: IqError {
-                        r#type: IqErrorType::Cancel,
-                    },
+                    body: (),
                 };
                 req.serialize(output);
             }
         }
     }
+}
 
-    async fn disco_info(&self, to: Option<&Jid>, req: &InfoQuery) -> Result<InfoQuery, IqError> {
+fn disco_info(to: Option<&str>, req: &InfoQuery) -> InfoQuery {
     let identity;
     let feature;
-
     match to {
-            Some(Jid {
-                name: None,
-                server,
-                resource: None,
-            }) if server.0 == self.hostname => {
+        Some("localhost") => {
             identity = vec![Identity {
                 category: "server".into(),
                 name: None,
@@ -124,11 +104,7 @@ impl<'a> XmppConnection<'a> {
                 Feature::new("presence"),
             ]
         }
-            Some(Jid {
-                name: None,
-                server,
-                resource: None,
-            }) if server.0 == self.hostname_rooms => {
+        Some("rooms.localhost") => {
             identity = vec![Identity {
                 category: "conference".into(),
                 name: Some("Chat rooms".into()),
@@ -140,75 +116,39 @@ impl<'a> XmppConnection<'a> {
                 Feature::new("http://jabber.org/protocol/muc"),
             ]
         }
-            Some(Jid {
-                name: Some(room_name),
-                server,
-                resource: None,
-            }) if server.0 == self.hostname_rooms => {
-                let room_id = RoomId::from(room_name.0.clone()).unwrap();
-                let Some(_) = self.rooms.get_room(&room_id).await else {
-                    // TODO should return item-not-found
-                    // example:
-                    // <error type="cancel">
-                    // <item-not-found xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
-                    // <text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" xml:lang="en">Conference room does not exist</text>
-                    // </error>
-                    return Err(IqError {
-                        r#type: IqErrorType::Cancel,
-                    });
-                };
-                identity = vec![Identity {
-                    category: "conference".into(),
-                    name: Some(room_id.into_inner().to_string()),
-                    r#type: "text".into(),
-                }];
-                feature = vec![
-                    Feature::new("http://jabber.org/protocol/disco#info"),
-                    Feature::new("http://jabber.org/protocol/disco#items"),
-                    Feature::new("http://jabber.org/protocol/muc"),
-                ]
-            }
         _ => {
             identity = vec![];
             feature = vec![];
         }
     };
-        Ok(InfoQuery {
+    InfoQuery {
         node: None,
         identity,
         feature,
-        })
+    }
 }
 
-    async fn disco_items(&self, to: Option<&Jid>, req: &ItemQuery, rooms: &RoomRegistry) -> ItemQuery {
+async fn disco_items(to: Option<&str>, req: &ItemQuery, rooms: &RoomRegistry) -> ItemQuery {
     let item = match to {
-            Some(Jid {
-                name: None,
-                server,
-                resource: None,
-            }) if server.0 == self.hostname => {
+        Some("localhost") => {
             vec![Item {
                 jid: Jid {
                     name: None,
-                        server: Server(self.hostname_rooms.clone()),
+                    server: Server("rooms.localhost".into()),
                     resource: None,
                 },
                 name: None,
                 node: None,
             }]
         }
-            Some(Jid {
-                name: None,
-                server,
-                resource: None,
-            }) if server.0 == self.hostname_rooms => {
+        Some("rooms.localhost") => {
             let room_list = rooms.get_all_rooms().await;
             room_list
                 .into_iter()
                 .map(|room_info| Item {
                     jid: Jid {
                         name: Some(Name(room_info.id.into_inner())),
-                            server: Server(self.hostname_rooms.clone()),
+                        server: Server("rooms.localhost".into()),
                         resource: None,
                     },
                     name: None,
@@ -220,4 +160,3 @@ impl<'a> XmppConnection<'a> {
     };
     ItemQuery { item }
 }
-}

crates/projection-xmpp/src/lib.rs

@@ -9,6 +9,7 @@ use std::net::SocketAddr;
 use std::path::PathBuf;
 use std::sync::Arc;
 
+use anyhow::anyhow;
 use futures_util::future::join_all;
 use prometheus::Registry as MetricsRegistry;
 use quick_xml::events::{BytesDecl, Event};
@@ -43,7 +44,6 @@ pub struct ServerConfig {
     pub listen_on: SocketAddr,
     pub cert: PathBuf,
     pub key: PathBuf,
-    pub hostname: Str,
 }
 
 struct LoadedConfig {
@@ -52,17 +52,9 @@ struct LoadedConfig {
 }
 
 struct Authenticated {
-    /// Identifier of the authenticated player.
-    ///
-    /// Used when communicating with lavina-core on behalf of the player.
     player_id: PlayerId,
-    /// The user's XMPP name.
-    ///
-    /// Used in `to` and `from` fields of XMPP messages.
     xmpp_name: Name,
-    /// The resource given to this user by the server.
     xmpp_resource: Resource,
-    /// The resource used by this user when joining MUCs.
     xmpp_muc_name: Resource,
 }
 
@@ -125,12 +117,11 @@ pub async fn launch(
                             let players = players.clone();
                             let rooms = rooms.clone();
                             let storage = storage.clone();
-                            let hostname = config.hostname.clone();
                             let terminator = Terminator::spawn(|termination| {
                                 let stopped_tx = stopped_tx.clone();
                                 let loaded_config = loaded_config.clone();
                                 async move {
-                                    match handle_socket(loaded_config, stream, &socket_addr, players, rooms, storage, hostname, termination).await {
+                                    match handle_socket(loaded_config, stream, &socket_addr, players, rooms, storage, termination).await {
                                         Ok(_) => log::info!("Connection terminated"),
                                         Err(err) => log::warn!("Connection failed: {err}"),
                                     }
@@ -165,13 +156,12 @@ pub async fn launch(
 }
 
 async fn handle_socket(
-    cert_config: Arc<LoadedConfig>,
+    config: Arc<LoadedConfig>,
     mut stream: TcpStream,
     socket_addr: &SocketAddr,
     mut players: PlayerRegistry,
     rooms: RoomRegistry,
     mut storage: Storage,
-    hostname: Str,
     termination: Deferred<()>, // TODO use it to stop the connection gracefully
 ) -> Result<()> {
     log::info!("Received an XMPP connection from {socket_addr}");
@@ -180,12 +170,12 @@ async fn handle_socket(
     let mut buf_reader = BufReader::new(reader);
     let mut buf_writer = BufWriter::new(writer);
 
-    socket_force_tls(&mut buf_reader, &mut buf_writer, &mut reader_buf, &hostname).await?;
+    socket_force_tls(&mut buf_reader, &mut buf_writer, &mut reader_buf).await?;
 
     let mut config = tokio_rustls::rustls::ServerConfig::builder()
         .with_safe_defaults()
         .with_no_client_auth()
-        .with_single_cert(vec![cert_config.cert.clone()], cert_config.key.clone())?;
+        .with_single_cert(vec![config.cert.clone()], config.key.clone())?;
     config.key_log = Arc::new(tokio_rustls::rustls::KeyLogFile::new());
 
     log::debug!("Accepting TLS connection...");
@@ -195,19 +185,11 @@ async fn handle_socket(
 
     let (a, b) = tokio::io::split(new_stream);
     let mut xml_reader = NsReader::from_reader(BufReader::new(a));
-    let mut xml_writer = Writer::new(BufWriter::new(b));
+    let mut xml_writer = Writer::new(b);
 
-    pin!(termination);
-    select! {
-        biased;
-        _ = &mut termination =>{
-            log::info!("Socket handling was terminated");
-            return Ok(())
-        },
-        authenticated = socket_auth(&mut xml_reader, &mut xml_writer, &mut reader_buf, &mut storage, &hostname) => {
-            match authenticated {
-                Ok(authenticated) => {
-                    let mut connection = players.connect_to_player(&authenticated.player_id).await;
+    let authenticated = socket_auth(&mut xml_reader, &mut xml_writer, &mut reader_buf, &mut storage).await?;
+    log::debug!("User authenticated");
+    let mut connection = players.connect_to_player(authenticated.player_id.clone()).await;
     socket_final(
         &mut xml_reader,
         &mut xml_writer,
@@ -215,19 +197,11 @@ async fn handle_socket(
         &authenticated,
         &mut connection,
         &rooms,
-                        &hostname,
     )
     .await?;
-                },
-                Err(err) => {
-                    log::error!("Authentication error: {:?}", err);
-                }
-            }
-        },
-    }
 
     let a = xml_reader.into_inner().into_inner();
-    let b = xml_writer.into_inner().into_inner();
+    let b = xml_writer.into_inner();
     a.unsplit(b).shutdown().await?;
     Ok(())
 }
@@ -236,18 +210,17 @@ async fn socket_force_tls(
     reader: &mut (impl AsyncBufRead + Unpin),
     writer: &mut (impl AsyncWrite + Unpin),
     reader_buf: &mut Vec<u8>,
-    hostname: &Str,
 ) -> Result<()> {
     use proto_xmpp::tls::*;
     let xml_reader = &mut NsReader::from_reader(reader);
     let xml_writer = &mut Writer::new(writer);
-    // TODO validate the server hostname received in the stream start
+    read_xml_header(xml_reader, reader_buf).await?;
     let _ = ClientStreamStart::parse(xml_reader, reader_buf).await?;
 
     let event = Event::Decl(BytesDecl::new("1.0", None, None));
     xml_writer.write_event_async(event).await?;
     let msg = ServerStreamStart {
-        from: hostname.to_string(),
+        from: "localhost".into(),
         lang: "en".into(),
         id: uuid::Uuid::new_v4().to_string(),
         version: "1.0".into(),
@@ -272,14 +245,13 @@ async fn socket_auth(
     xml_writer: &mut Writer<(impl AsyncWrite + Unpin)>,
     reader_buf: &mut Vec<u8>,
     storage: &mut Storage,
-    hostname: &Str,
 ) -> Result<Authenticated> {
-    // TODO validate the server hostname received in the stream start
+    read_xml_header(xml_reader, reader_buf).await?;
     let _ = ClientStreamStart::parse(xml_reader, reader_buf).await?;
 
     xml_writer.write_event_async(Event::Decl(BytesDecl::new("1.0", None, None))).await?;
     ServerStreamStart {
-        from: hostname.to_string(),
+        from: "localhost".into(),
         lang: "en".into(),
         id: uuid::Uuid::new_v4().to_string(),
         version: "1.0".into(),
@@ -297,7 +269,6 @@ async fn socket_auth(
 
     let auth: proto_xmpp::sasl::Auth = proto_xmpp::sasl::Auth::parse(xml_reader, reader_buf).await?;
     proto_xmpp::sasl::Success.write_xml(xml_writer).await?;
-    xml_writer.get_mut().flush().await?;
 
     match AuthBody::from_str(&auth.body) {
         Ok(logopass) => {
@@ -322,13 +293,11 @@ async fn socket_auth(
                 return Err(fail("passwords do not match"));
             }
 
-            let name: Str = name.as_str().into();
-
             Ok(Authenticated {
-                player_id: PlayerId::from(name.clone())?,
-                xmpp_name: Name(name.clone()),
-                xmpp_resource: Resource(name.clone()),
-                xmpp_muc_name: Resource(name.clone()),
+                player_id: PlayerId::from(name.as_str())?,
+                xmpp_name: Name(name.to_string().into()),
+                xmpp_resource: Resource(name.to_string().into()),
+                xmpp_muc_name: Resource(name.to_string().into()),
             })
         }
         Err(e) => return Err(e),
@@ -342,14 +311,13 @@ async fn socket_final(
     authenticated: &Authenticated,
     user_handle: &mut PlayerConnection,
     rooms: &RoomRegistry,
-    hostname: &Str,
 ) -> Result<()> {
-    // TODO validate the server hostname received in the stream start
+    read_xml_header(xml_reader, reader_buf).await?;
     let _ = ClientStreamStart::parse(xml_reader, reader_buf).await?;
 
     xml_writer.write_event_async(Event::Decl(BytesDecl::new("1.0", None, None))).await?;
     ServerStreamStart {
-        from: hostname.to_string(),
+        from: "localhost".into(),
         lang: "en".into(),
         id: uuid::Uuid::new_v4().to_string(),
         version: "1.0".into(),
@@ -375,15 +343,13 @@ async fn socket_final(
             user: authenticated,
             user_handle,
             rooms,
-            hostname: hostname.clone(),
-            hostname_rooms: format!("rooms.{}", hostname).into(),
         };
         let should_recreate_xml_future = select! {
             biased;
             res = &mut next_xml_event => 's: {
                 let (ns, event) = res?;
                 if let Event::Text(ref e) = event {
-                    if e.iter().all(|x| *x == b'\n' || *x == b' ') {
+                    if e.iter().all(|x| *x == 0xA) {
                         break 's true;
                     }
                 }
@@ -433,14 +399,12 @@ struct XmppConnection<'a> {
     user: &'a Authenticated,
     user_handle: &'a mut PlayerConnection,
     rooms: &'a RoomRegistry,
-    hostname: Str,
-    hostname_rooms: Str,
 }
 
 impl<'a> XmppConnection<'a> {
     async fn handle_packet(&mut self, output: &mut Vec<Event<'static>>, packet: ClientPacket) -> Result<bool> {
         let res = match packet {
-            ClientPacket::Iq(iq) => {
+            proto::ClientPacket::Iq(iq) => {
                 self.handle_iq(output, iq).await;
                 false
             }
@@ -448,11 +412,11 @@ impl<'a> XmppConnection<'a> {
                 self.handle_message(output, m).await?;
                 false
             }
-            ClientPacket::Presence(p) => {
+            proto::ClientPacket::Presence(p) => {
                 self.handle_presence(output, p).await?;
                 false
             }
-            ClientPacket::StreamEnd => {
+            proto::ClientPacket::StreamEnd => {
                 ServerStreamEnd.serialize(output);
                 true
             }
@@ -460,3 +424,25 @@ impl<'a> XmppConnection<'a> {
         Ok(res)
     }
 }
+
+async fn read_xml_header(
+    xml_reader: &mut NsReader<(impl AsyncBufRead + Unpin)>,
+    reader_buf: &mut Vec<u8>,
+) -> Result<()> {
+    if let Event::Decl(bytes) = xml_reader.read_event_into_async(reader_buf).await? {
+        // this is <?xml ...> header
+        if let Some(encoding) = bytes.encoding() {
+            let encoding = encoding?;
+            if &*encoding == b"UTF-8" {
+                Ok(())
+            } else {
+                Err(anyhow!("Unsupported encoding: {encoding:?}"))
+            }
+        } else {
+            // Err(fail("No XML encoding provided"))
+            Ok(())
+        }
+    } else {
+        Err(anyhow!("Expected XML header"))
+    }
+}

crates/projection-xmpp/src/message.rs

@@ -18,17 +18,17 @@ impl<'a> XmppConnection<'a> {
             resource: _,
         }) = m.to
         {
-            if server.0.as_ref() == &*self.hostname_rooms && m.r#type == MessageType::Groupchat {
+            if server.0.as_ref() == "rooms.localhost" && m.r#type == MessageType::Groupchat {
                 self.user_handle.send_message(RoomId::from(name.0.clone())?, m.body.clone().into()).await?;
                 Message::<()> {
                     to: Some(Jid {
                         name: Some(self.user.xmpp_name.clone()),
-                        server: Server(self.hostname.clone()),
+                        server: Server("localhost".into()),
                         resource: Some(self.user.xmpp_resource.clone()),
                     }),
                     from: Some(Jid {
                         name: Some(name),
-                        server: Server(self.hostname_rooms.clone()),
+                        server: Server("rooms.localhost".into()),
                         resource: Some(self.user.xmpp_muc_name.clone()),
                     }),
                     id: m.id,

crates/projection-xmpp/src/presence.rs

@@ -4,7 +4,7 @@ use quick_xml::events::Event;
 
 use lavina_core::prelude::*;
 use lavina_core::room::RoomId;
-use proto_xmpp::bind::{Jid, Name, Server};
+use proto_xmpp::bind::{Jid, Server};
 use proto_xmpp::client::Presence;
 use proto_xmpp::xml::{Ignore, ToXml};
 
@@ -12,59 +12,42 @@ use crate::XmppConnection;
 
 impl<'a> XmppConnection<'a> {
     pub async fn handle_presence(&mut self, output: &mut Vec<Event<'static>>, p: Presence<Ignore>) -> Result<()> {
-        match p.to {
-            None => {
-                self.self_presence(output).await;
-            }
-            Some(Jid {
-                name: Some(name),
-                server,
-                // resources in MUCs are members' personas – not implemented (yet?)
-                resource: Some(_),
-            }) if server.0 == self.hostname_rooms => {
-                self.muc_presence(name, output).await?;
-            }
-            _ => {
-                // TODO other presence cases
-                let response = Presence::<()>::default();
-                response.serialize(output);
-            }
-        }
-        Ok(())
-    }
-
-    async fn self_presence(&mut self, output: &mut Vec<Event<'static>>) {
-        let response = Presence::<()> {
+        let response = if p.to.is_none() {
+            Presence::<()> {
                 to: Some(Jid {
                     name: Some(self.user.xmpp_name.clone()),
-                server: Server(self.hostname.clone()),
+                    server: Server("localhost".into()),
                     resource: Some(self.user.xmpp_resource.clone()),
                 }),
                 from: Some(Jid {
                     name: Some(self.user.xmpp_name.clone()),
-                server: Server(self.hostname.clone()),
+                    server: Server("localhost".into()),
                     resource: Some(self.user.xmpp_resource.clone()),
                 }),
                 ..Default::default()
-        };
-        response.serialize(output);
             }
-
-    async fn muc_presence(&mut self, name: Name, output: &mut Vec<Event<'static>>) -> Result<()> {
+        } else if let Some(Jid {
+            name: Some(name),
+            server,
+            resource: Some(resource),
+        }) = p.to
+        {
             let a = self.user_handle.join_room(RoomId::from(name.0.clone())?).await?;
-        // TODO handle bans
-        let response = Presence::<()> {
+            Presence::<()> {
                 to: Some(Jid {
                     name: Some(self.user.xmpp_name.clone()),
-                server: Server(self.hostname.clone()),
+                    server: Server("localhost".into()),
                     resource: Some(self.user.xmpp_resource.clone()),
                 }),
                 from: Some(Jid {
                     name: Some(name.clone()),
-                server: Server(self.hostname_rooms.clone()),
+                    server: Server("rooms.localhost".into()),
                     resource: Some(self.user.xmpp_muc_name.clone()),
                 }),
                 ..Default::default()
+            }
+        } else {
+            Presence::<()>::default()
         };
         response.serialize(output);
         Ok(())

crates/projection-xmpp/src/updates.rs

@@ -21,12 +21,12 @@ impl<'a> XmppConnection<'a> {
                 Message::<()> {
                     to: Some(Jid {
                         name: Some(self.user.xmpp_name.clone()),
-                        server: Server(self.hostname.clone()),
+                        server: Server("localhost".into()),
                         resource: Some(self.user.xmpp_resource.clone()),
                     }),
                     from: Some(Jid {
                         name: Some(Name(room_id.into_inner().into())),
-                        server: Server(self.hostname_rooms.clone()),
+                        server: Server("rooms.localhost".into()),
                         resource: Some(Resource(author_id.into_inner().into())),
                     }),
                     id: None,

crates/projection-xmpp/tests/lib.rs

@@ -1,4 +1,3 @@
-use std::io::ErrorKind;
 use std::sync::Arc;
 use std::time::Duration;
 
@@ -7,7 +6,7 @@ use assert_matches::*;
 use prometheus::Registry as MetricsRegistry;
 use quick_xml::events::Event;
 use quick_xml::NsReader;
-use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
+use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufReader};
 use tokio::io::{ReadHalf as GenericReadHalf, WriteHalf as GenericWriteHalf};
 use tokio::net::tcp::{ReadHalf, WriteHalf};
 use tokio::net::TcpStream;
@@ -19,7 +18,7 @@ use tokio_rustls::TlsConnector;
 use lavina_core::player::PlayerRegistry;
 use lavina_core::repo::{Storage, StorageConfig};
 use lavina_core::room::RoomRegistry;
-use projection_xmpp::{launch, RunningServer, ServerConfig};
+use projection_xmpp::{launch, ServerConfig};
 use proto_xmpp::xml::{Continuation, FromXml, Parser};
 
 pub async fn read_irc_message(reader: &mut BufReader<ReadHalf<'_>>, buf: &mut Vec<u8>) -> Result<usize> {
@@ -121,21 +120,13 @@ impl ServerCertVerifier for IgnoreCertVerification {
     }
 }
 
-struct TestServer {
-    metrics: MetricsRegistry,
-    storage: Storage,
-    rooms: RoomRegistry,
-    players: PlayerRegistry,
-    server: RunningServer,
-}
-impl TestServer {
-    async fn start() -> Result<TestServer> {
-        let _ = tracing_subscriber::fmt::try_init();
+#[tokio::test]
+async fn scenario_basic() -> Result<()> {
+    tracing_subscriber::fmt::init();
     let config = ServerConfig {
         listen_on: "127.0.0.1:0".parse().unwrap(),
         cert: "tests/certs/xmpp.pem".parse().unwrap(),
         key: "tests/certs/xmpp.key".parse().unwrap(),
-            hostname: "localhost".into(),
     };
     let mut metrics = MetricsRegistry::new();
     let mut storage = Storage::open(StorageConfig {
@@ -143,28 +134,15 @@ impl TestServer {
     })
     .await?;
     let rooms = RoomRegistry::new(&mut metrics, storage.clone()).unwrap();
-        let players = PlayerRegistry::empty(rooms.clone(), storage.clone(), &mut metrics).unwrap();
-        let server = launch(config, players.clone(), rooms.clone(), metrics.clone(), storage.clone()).await.unwrap();
-        Ok(TestServer {
-            metrics,
-            storage,
-            rooms,
-            players,
-            server,
-        })
-    }
-}
-
-#[tokio::test]
-async fn scenario_basic() -> Result<()> {
-    let mut server = TestServer::start().await?;
+    let players = PlayerRegistry::empty(rooms.clone(), &mut metrics).unwrap();
+    let server = launch(config, players, rooms, metrics, storage.clone()).await.unwrap();
 
     // test scenario
 
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
+    storage.create_user("tester").await?;
+    storage.set_password("tester", "password").await?;
 
-    let mut stream = TcpStream::connect(server.server.addr).await?;
+    let mut stream = TcpStream::connect(server.addr).await?;
     let mut s = TestScope::new(&mut stream);
     tracing::info!("TCP connection established");
 
@@ -189,7 +167,7 @@ async fn scenario_basic() -> Result<()> {
             .with_no_client_auth(),
     ));
     tracing::info!("Initiating TLS connection...");
-    let mut stream = connector.connect(ServerName::IpAddress(server.server.addr.ip()), stream).await?;
+    let mut stream = connector.connect(ServerName::IpAddress(server.addr.ip()), stream).await?;
     tracing::info!("TLS connection established");
 
     let mut s = TestScopeTls::new(&mut stream, buffer);
@@ -203,100 +181,6 @@ async fn scenario_basic() -> Result<()> {
 
     // wrap up
 
-    server.server.terminate().await?;
-    Ok(())
-}
-
-#[tokio::test]
-async fn scenario_basic_without_headers() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-    tracing::info!("TCP connection established");
-
-    s.send(r#"<stream:stream xmlns:stream="http://etherx.jabber.org/streams" to="127.0.0.1" xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace" xmlns="jabber:client" version="1.0">"#).await?;
-    assert_matches!(s.next_xml_event().await?, Event::Decl(_) => {});
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"stream"));
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"features"));
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"starttls"));
-    assert_matches!(s.next_xml_event().await?, Event::Empty(b) => assert_eq!(b.local_name().into_inner(), b"required"));
-    assert_matches!(s.next_xml_event().await?, Event::End(b) => assert_eq!(b.local_name().into_inner(), b"starttls"));
-    assert_matches!(s.next_xml_event().await?, Event::End(b) => assert_eq!(b.local_name().into_inner(), b"features"));
-    s.send(r#"<starttls/>"#).await?;
-    assert_matches!(s.next_xml_event().await?, Event::Empty(b) => assert_eq!(b.local_name().into_inner(), b"proceed"));
-    let buffer = s.buffer;
-    tracing::info!("TLS feature negotiation complete");
-
-    let connector = TlsConnector::from(Arc::new(
-        ClientConfig::builder()
-            .with_safe_defaults()
-            .with_custom_certificate_verifier(Arc::new(IgnoreCertVerification))
-            .with_no_client_auth(),
-    ));
-    tracing::info!("Initiating TLS connection...");
-    let mut stream = connector.connect(ServerName::IpAddress(server.server.addr.ip()), stream).await?;
-    tracing::info!("TLS connection established");
-
-    let mut s = TestScopeTls::new(&mut stream, buffer);
-
-    s.send(r#"<stream:stream xmlns:stream="http://etherx.jabber.org/streams" to="127.0.0.1" xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace" xmlns="jabber:client" version="1.0">"#).await?;
-    assert_matches!(s.next_xml_event().await?, Event::Decl(_) => {});
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"stream"));
-
-    stream.shutdown().await?;
-
-    // wrap up
-
-    server.server.terminate().await?;
-    Ok(())
-}
-
-#[tokio::test]
-async fn terminate_socket() -> Result<()> {
-    let mut server = TestServer::start().await?;
-
-    // test scenario
-
-    server.storage.create_user("tester").await?;
-    server.storage.set_password("tester", "password").await?;
-
-    let mut stream = TcpStream::connect(server.server.addr).await?;
-    let mut s = TestScope::new(&mut stream);
-    tracing::info!("TCP connection established");
-
-    s.send(r#"<?xml version="1.0"?>"#).await?;
-
-    s.send(r#"<stream:stream xmlns:stream="http://etherx.jabber.org/streams" to="127.0.0.1" xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace" xmlns="jabber:client" version="1.0">"#).await?;
-    assert_matches!(s.next_xml_event().await?, Event::Decl(_) => {});
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"stream"));
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"features"));
-    assert_matches!(s.next_xml_event().await?, Event::Start(b) => assert_eq!(b.local_name().into_inner(), b"starttls"));
-    assert_matches!(s.next_xml_event().await?, Event::Empty(b) => assert_eq!(b.local_name().into_inner(), b"required"));
-    assert_matches!(s.next_xml_event().await?, Event::End(b) => assert_eq!(b.local_name().into_inner(), b"starttls"));
-    assert_matches!(s.next_xml_event().await?, Event::End(b) => assert_eq!(b.local_name().into_inner(), b"features"));
-    s.send(r#"<starttls/>"#).await?;
-    assert_matches!(s.next_xml_event().await?, Event::Empty(b) => assert_eq!(b.local_name().into_inner(), b"proceed"));
-
-    let connector = TlsConnector::from(Arc::new(
-        ClientConfig::builder()
-            .with_safe_defaults()
-            .with_custom_certificate_verifier(Arc::new(IgnoreCertVerification))
-            .with_no_client_auth(),
-    ));
-
-    tracing::info!("Initiating TLS connection...");
-    let mut stream = connector.connect(ServerName::IpAddress(server.server.addr.ip()), stream).await?;
-    tracing::info!("TLS connection established");
-
-    server.server.terminate().await?;
-
-    assert_eq!(stream.read_u8().await.unwrap_err().kind(), ErrorKind::UnexpectedEof);
-
+    server.terminate().await?;
     Ok(())
 }

crates/proto-irc/src/client.rs

@@ -7,56 +7,56 @@ use nonempty::NonEmpty;
 /// Client-to-server command.
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum ClientMessage {
-    /// `CAP`. Capability-related commands.
+    /// CAP. Capability-related commands.
     Capability {
         subcommand: CapabilitySubcommand,
     },
-    /// `PING <token>`
+    /// PING <token>
     Ping {
         token: Str,
     },
-    /// `PONG <token>`
+    /// PONG <token>
     Pong {
         token: Str,
     },
-    /// `NICK <nickname>`
+    /// NICK <nickname>
     Nick {
         nickname: Str,
     },
-    /// `PASS <password>`
+    /// PASS <password>
     Pass {
         password: Str,
     },
-    /// `USER <username> 0 * :<realname>`
+    /// USER <username> 0 * :<realname>
     User {
         username: Str,
         realname: Str,
     },
-    /// `JOIN <chan>`
+    /// JOIN <chan>
     Join(Chan),
-    /// `MODE <target>`
+    /// MODE <target>
     Mode {
         target: Recipient,
     },
-    /// `WHO <target>`
+    /// WHO <target>
     Who {
         target: Recipient, // aka mask
     },
-    /// `TOPIC <chan> :<topic>`
+    /// TOPIC <chan> :<topic>
     Topic {
         chan: Chan,
         topic: Str,
     },
     Part {
         chan: Chan,
-        message: Option<Str>,
+        message: Str,
     },
-    /// `PRIVMSG <target> :<msg>`
+    /// PRIVMSG <target> :<msg>
     PrivateMessage {
         recipient: Recipient,
         body: Str,
     },
-    /// `QUIT :<reason>`
+    /// QUIT :<reason>
     Quit {
         reason: Str,
     },
@@ -194,20 +194,14 @@ fn client_message_topic(input: &str) -> IResult<&str, ClientMessage> {
 fn client_message_part(input: &str) -> IResult<&str, ClientMessage> {
     let (input, _) = tag("PART ")(input)?;
     let (input, chan) = chan(input)?;
-    let (input, t) = opt(tag(" "))(input)?;
-    match t {
-        Some(_) => (),
-        None => {
-            return Ok((input, ClientMessage::Part { chan, message: None }));
-        }
-    }
+    let (input, _) = tag(" ")(input)?;
     let (input, r) = opt(tag(":"))(input)?;
     let (input, message) = match r {
         Some(_) => token(input)?,
         None => receiver(input)?,
     };
 
-    let message = Some(message.into());
+    let message = message.into();
     Ok((input, ClientMessage::Part { chan, message }))
 }
 
@@ -375,18 +369,7 @@ mod test {
         let input = "PART #chan :Pokasiki !!!";
         let expected = ClientMessage::Part {
             chan: Chan::Global("chan".into()),
-            message: Some("Pokasiki !!!".into()),
-        };
-
-        let result = client_message(input);
-        assert_matches!(result, Ok(result) => assert_eq!(expected, result));
-    }
-    #[test]
-    fn test_client_message_part_empty() {
-        let input = "PART #chan";
-        let expected = ClientMessage::Part {
-            chan: Chan::Global("chan".into()),
-            message: None,
+            message: "Pokasiki !!!".into(),
         };
 
         let result = client_message(input);

crates/proto-irc/src/lib.rs

@@ -30,15 +30,11 @@ fn token(input: &str) -> IResult<&str, &str> {
     take_while(|i| i != '\n' && i != '\r')(input)
 }
 
-fn params(input: &str) -> IResult<&str, &str> {
-    take_while(|i| i != '\n' && i != '\r' && i != ':')(input)
-}
-
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum Chan {
-    /// `#<name>` — network-global channel, available from any server in the network.
+    /// #<name> — network-global channel, available from any server in the network.
     Global(Str),
-    /// `&<name>` — server-local channel, available only to connections to the same server. Rarely used in practice.
+    /// &<name> — server-local channel, available only to connections to the same server. Rarely used in practice.
     Local(Str),
 }
 impl Chan {
@@ -118,7 +114,9 @@ mod test {
         assert_matches!(result, Ok((_, result)) => assert_eq!(expected, result));
 
         let mut bytes = vec![];
-        sync_future(expected.write_async(&mut bytes)).unwrap().unwrap();
+        sync_future(expected.write_async(&mut bytes))
+            .unwrap()
+            .unwrap();
 
         assert_eq!(bytes.as_slice(), input.as_bytes());
     }
@@ -132,7 +130,9 @@ mod test {
         assert_matches!(result, Ok((_, result)) => assert_eq!(expected, result));
 
         let mut bytes = vec![];
-        sync_future(expected.write_async(&mut bytes)).unwrap().unwrap();
+        sync_future(expected.write_async(&mut bytes))
+            .unwrap()
+            .unwrap();
 
         assert_eq!(bytes.as_slice(), input.as_bytes());
     }
@@ -146,7 +146,9 @@ mod test {
         assert_matches!(result, Ok((_, result)) => assert_eq!(expected, result));
 
         let mut bytes = vec![];
-        sync_future(expected.write_async(&mut bytes)).unwrap().unwrap();
+        sync_future(expected.write_async(&mut bytes))
+            .unwrap()
+            .unwrap();
 
         assert_eq!(bytes.as_slice(), input.as_bytes());
     }

crates/proto-irc/src/server.rs

@@ -1,5 +1,3 @@
-use std::sync::Arc;
-
 use nonempty::NonEmpty;
 use tokio::io::AsyncWrite;
 use tokio::io::AsyncWriteExt;
@@ -154,11 +152,7 @@ pub enum ServerMessageBody {
     N903SaslSuccess {
         nick: Str,
         message: Str,
-    },
-    N904SaslFail {
-        nick: Str,
-        text: Str,
-    },
+    }
 }
 
 impl ServerMessageBody {
@@ -273,7 +267,11 @@ impl ServerMessageBody {
                 writer.write_all(b" :").await?;
                 writer.write_all(msg.as_bytes()).await?;
             }
-            ServerMessageBody::N332Topic { client, chat, topic } => {
+            ServerMessageBody::N332Topic {
+                client,
+                chat,
+                topic,
+            } => {
                 writer.write_all(b"332 ").await?;
                 writer.write_all(client.as_bytes()).await?;
                 writer.write_all(b" ").await?;
@@ -311,21 +309,22 @@ impl ServerMessageBody {
                 writer.write_all(b" ").await?;
                 writer.write_all(realname.as_bytes()).await?;
             }
-            ServerMessageBody::N353NamesReply { client, chan, members } => {
+            ServerMessageBody::N353NamesReply {
+                client,
+                chan,
+                members,
+            } => {
                 writer.write_all(b"353 ").await?;
                 writer.write_all(client.as_bytes()).await?;
                 writer.write_all(b" = ").await?;
                 chan.write_async(writer).await?;
                 writer.write_all(b" :").await?;
-                {
-                    let member = &members.head;
-                    writer.write_all(member.prefix.to_string().as_bytes()).await?;
+                for member in members {
+                    writer
+                        .write_all(member.prefix.to_string().as_bytes())
+                        .await?;
                     writer.write_all(member.nick.as_bytes()).await?;
-                }
-                for member in &members.tail {
                     writer.write_all(b" ").await?;
-                    writer.write_all(member.prefix.to_string().as_bytes()).await?;
-                    writer.write_all(member.nick.as_bytes()).await?;
                 }
             }
             ServerMessageBody::N366NamesReplyEnd { client, chan } => {
@@ -335,7 +334,11 @@ impl ServerMessageBody {
                 chan.write_async(writer).await?;
                 writer.write_all(b" :End of /NAMES list").await?;
             }
-            ServerMessageBody::N474BannedFromChan { client, chan, message } => {
+            ServerMessageBody::N474BannedFromChan {
+                client,
+                chan,
+                message,
+            } => {
                 writer.write_all(b"474 ").await?;
                 writer.write_all(client.as_bytes()).await?;
                 writer.write_all(b" ").await?;
@@ -350,12 +353,7 @@ impl ServerMessageBody {
                 writer.write_all(b" :").await?;
                 writer.write_all(message.as_bytes()).await?;
             }
-            ServerMessageBody::N900LoggedIn {
-                nick,
-                address,
-                account,
-                message,
-            } => {
+            ServerMessageBody::N900LoggedIn { nick, address, account, message } => {
                 writer.write_all(b"900 ").await?;
                 writer.write_all(nick.as_bytes()).await?;
                 writer.write_all(b" ").await?;
@@ -371,13 +369,6 @@ impl ServerMessageBody {
                 writer.write_all(b" :").await?;
                 writer.write_all(message.as_bytes()).await?;
             }
-            ServerMessageBody::N904SaslFail { nick, text } => {
-                writer.write_all(b"904").await?;
-                writer.write_all(b" ").await?;
-                writer.write_all(nick.as_bytes()).await?;
-                writer.write_all(b" :").await?;
-                writer.write_all(text.as_bytes()).await?;
-            }
         }
         Ok(())
     }

crates/proto-xmpp/src/bind.rs

@@ -11,15 +11,12 @@ pub const XMLNS: &'static str = "urn:ietf:params:xml:ns:xmpp-bind";
 
 // TODO remove `pub` in newtypes, introduce validation
 
-/// Name (node identifier) of an XMPP entity. Placed before the `@` in a JID.
 #[derive(PartialEq, Eq, Debug, Clone)]
 pub struct Name(pub Str);
 
-/// Server name of an XMPP entity. Placed after the `@` and before the `/` in a JID.
 #[derive(PartialEq, Eq, Debug, Clone)]
 pub struct Server(pub Str);
 
-/// Resource of an XMPP entity. Placed after the `/` in a JID.
 #[derive(PartialEq, Eq, Debug, Clone)]
 pub struct Resource(pub Str);
 
@@ -45,19 +42,27 @@ impl Display for Jid {
 
 impl Jid {
     pub fn from_string(i: &str) -> Result<Jid> {
-        use lazy_static::lazy_static;
         use regex::Regex;
+        use lazy_static::lazy_static;
         lazy_static! {
-            static ref RE: Regex = Regex::new(r"^(([a-zA-Z0-9]+)@)?([^@/]+)(/([a-zA-Z0-9\-]+))?$").unwrap();
+            static ref RE: Regex = Regex::new(r"^(([a-zA-Z]+)@)?([a-zA-Z.]+)(/([a-zA-Z\-]+))?$").unwrap();
         }
-        let m = RE.captures(i).ok_or(anyhow!("Incorrectly format jid: {i}"))?;
+        let m = RE
+            .captures(i)
+            .ok_or(anyhow!("Incorrectly format jid: {i}"))?;
 
         let name = m.get(2).map(|name| Name(name.as_str().into()));
         let server = m.get(3).unwrap();
         let server = Server(server.as_str().into());
-        let resource = m.get(5).map(|resource| Resource(resource.as_str().into()));
+        let resource = m
+            .get(5)
+            .map(|resource| Resource(resource.as_str().into()));
 
-        Ok(Jid { name, server, resource })
+        Ok(Jid {
+            name,
+            server,
+            resource,
+        })
     }
 }
 
@@ -132,7 +137,9 @@ pub struct BindResponse(pub Jid);
 impl ToXml for BindResponse {
     fn serialize(&self, events: &mut Vec<Event<'static>>) {
         events.extend_from_slice(&[
-            Event::Start(BytesStart::new(r#"bind xmlns="urn:ietf:params:xml:ns:xmpp-bind""#)),
+            Event::Start(BytesStart::new(
+                r#"bind xmlns="urn:ietf:params:xml:ns:xmpp-bind""#,
+            )),
             Event::Start(BytesStart::new(r#"jid"#)),
             Event::Text(BytesText::new(self.0.to_string().as_str()).into_owned()),
             Event::End(BytesEnd::new("jid")),
@@ -149,16 +156,23 @@ mod tests {
 
     #[tokio::test]
     async fn parse_message() {
-        let input = r#"<bind xmlns="urn:ietf:params:xml:ns:xmpp-bind"><resource>mobile</resource></bind>"#;
+        let input =
+            r#"<bind xmlns="urn:ietf:params:xml:ns:xmpp-bind"><resource>mobile</resource></bind>"#;
         let mut reader = NsReader::from_reader(input.as_bytes());
         let mut buf = vec![];
-        let (ns, event) = reader.read_resolved_event_into_async(&mut buf).await.unwrap();
+        let (ns, event) = reader
+            .read_resolved_event_into_async(&mut buf)
+            .await
+            .unwrap();
         let mut parser = BindRequest::parse().consume(ns, &event);
         let result = loop {
             match parser {
                 Continuation::Final(res) => break res,
                 Continuation::Continue(next) => {
-                    let (ns, event) = reader.read_resolved_event_into_async(&mut buf).await.unwrap();
+                    let (ns, event) = reader
+                        .read_resolved_event_into_async(&mut buf)
+                        .await
+                        .unwrap();
                     parser = next.consume(ns, &event);
                 }
             }

crates/proto-xmpp/src/client.rs

@@ -255,49 +255,11 @@ impl MessageType {
     }
 }
 
-/// Error response to an IQ request.
-///
-/// https://xmpp.org/rfcs/rfc6120.html#stanzas-error
-pub struct IqError {
-    pub r#type: IqErrorType,
-}
-
-pub enum IqErrorType {
-    /// Retry after providing credentials
-    Auth,
-    /// Do not retry (the error cannot be remedied)
-    Cancel,
-    /// Proceed (the condition was only a warning)
-    Continue,
-    /// Retry after changing the data sent
-    Modify,
-    /// Retry after waiting (the error is temporary)
-    Wait,
-}
-impl IqErrorType {
-    pub fn as_str(&self) -> &'static str {
-        match self {
-            IqErrorType::Auth => "auth",
-            IqErrorType::Cancel => "cancel",
-            IqErrorType::Continue => "continue",
-            IqErrorType::Modify => "modify",
-            IqErrorType::Wait => "wait",
-        }
-    }
-}
-
-impl ToXml for IqError {
-    fn serialize(&self, events: &mut Vec<Event<'static>>) {
-        let bytes = BytesStart::new(format!(r#"error xmlns="{}" type="{}""#, XMLNS, self.r#type.as_str()));
-        events.push(Event::Empty(bytes));
-    }
-}
-
 #[derive(PartialEq, Eq, Debug)]
 pub struct Iq<T> {
-    pub from: Option<Jid>,
+    pub from: Option<String>,
     pub id: String,
-    pub to: Option<Jid>,
+    pub to: Option<String>,
     pub r#type: IqType,
     pub body: T,
 }
@@ -323,9 +285,9 @@ enum IqParserInner<T: FromXml> {
     Final(IqParserState<T>),
 }
 struct IqParserState<T> {
-    pub from: Option<Jid>,
+    pub from: Option<String>,
     pub id: Option<String>,
-    pub to: Option<Jid>,
+    pub to: Option<String>,
     pub r#type: Option<IqType>,
     pub body: Option<T>,
 }
@@ -348,15 +310,13 @@ impl<T: FromXml> Parser for IqParser<T> {
                         let attr = fail_fast!(attr);
                         if attr.key.0 == b"from" {
                             let value = fail_fast!(std::str::from_utf8(&*attr.value));
-                            let value = fail_fast!(Jid::from_string(value));
-                            state.from = Some(value)
+                            state.from = Some(value.to_string())
                         } else if attr.key.0 == b"id" {
                             let value = fail_fast!(std::str::from_utf8(&*attr.value));
                             state.id = Some(value.to_string())
                         } else if attr.key.0 == b"to" {
                             let value = fail_fast!(std::str::from_utf8(&*attr.value));
-                            let value = fail_fast!(Jid::from_string(value));
-                            state.to = Some(value)
+                            state.to = Some(value.to_string())
                         } else if attr.key.0 == b"type" {
                             let value = fail_fast!(IqType::from_str(&*attr.value));
                             state.r#type = Some(value);
@@ -433,17 +393,15 @@ impl<T: ToXml> ToXml for Iq<T> {
         let mut start = BytesStart::new(start);
         let mut attrs = vec![];
         if let Some(ref from) = self.from {
-            let value = from.to_string().into_bytes();
             attrs.push(Attribute {
                 key: QName(b"from"),
-                value: value.into(),
+                value: from.as_bytes().into(),
             });
         };
         if let Some(ref to) = self.to {
-            let value = to.to_string().into_bytes();
             attrs.push(Attribute {
                 key: QName(b"to"),
-                value: value.into(),
+                value: to.as_bytes().into(),
             });
         }
         attrs.push(Attribute {

crates/proto-xmpp/src/disco.rs

@@ -2,8 +2,8 @@ use quick_xml::events::attributes::Attribute;
 use quick_xml::events::{BytesEnd, BytesStart, Event};
 use quick_xml::name::{QName, ResolveResult};
 
+use anyhow::{Result, anyhow as ffail};
 use crate::xml::*;
-use anyhow::{anyhow as ffail, Result};
 
 use super::bind::Jid;
 
@@ -174,7 +174,11 @@ impl FromXml for Identity {
             let Some(r#type) = r#type else {
                 return Err(ffail!("No type provided"));
             };
-            let item = Identity { category, name, r#type };
+            let item = Identity {
+                category,
+                name,
+                r#type,
+            };
             if end {
                 return Ok(item);
             }

crates/proto-xmpp/src/lib.rs

@@ -1,16 +1,21 @@
-#![feature(coroutines, coroutine_trait, type_alias_impl_trait, impl_trait_in_assoc_type)]
+#![feature(
+    coroutines,
+    coroutine_trait,
+    type_alias_impl_trait,
+    impl_trait_in_assoc_type
+)]
 
 pub mod bind;
 pub mod client;
 pub mod disco;
 pub mod muc;
-mod prelude;
 pub mod roster;
 pub mod sasl;
 pub mod session;
 pub mod stanzaerror;
 pub mod stream;
 pub mod tls;
+mod prelude;
 pub mod xml;
 
 // Implemented as a macro instead of a fn due to borrowck limitations

crates/proto-xmpp/src/roster.rs

@@ -1,30 +1,47 @@
 use quick_xml::events::{BytesStart, Event};
 
 use crate::xml::*;
-use anyhow::{anyhow, Result};
-use quick_xml::name::ResolveResult;
+use anyhow::{anyhow as ffail, Result};
 
 pub const XMLNS: &'static str = "jabber:iq:roster";
 
 #[derive(PartialEq, Eq, Debug)]
 pub struct RosterQuery;
 
+pub struct QueryParser(QueryParserInner);
+
+enum QueryParserInner {
+    Initial,
+    InQuery,
+}
+
+impl Parser for QueryParser {
+    type Output = Result<RosterQuery>;
+
+    fn consume<'a>(
+        self: Self,
+        namespace: quick_xml::name::ResolveResult,
+        event: &quick_xml::events::Event<'a>,
+    ) -> Continuation<Self, Self::Output> {
+        match self.0 {
+            QueryParserInner::Initial => match event {
+                Event::Start(_) => Continuation::Continue(QueryParser(QueryParserInner::InQuery)),
+                Event::Empty(_) => Continuation::Final(Ok(RosterQuery)),
+                _ => Continuation::Final(Err(ffail!("Unexpected XML event: {event:?}"))),
+            },
+            QueryParserInner::InQuery => match event {
+                Event::End(_) => Continuation::Final(Ok(RosterQuery)),
+                _ => Continuation::Final(Err(ffail!("Unexpected XML event: {event:?}"))),
+            },
+        }
+    }
+}
+
 impl FromXml for RosterQuery {
-    type P = impl Parser<Output = Result<Self>>;
+    type P = QueryParser;
 
     fn parse() -> Self::P {
-        |(mut namespace, mut event): (ResolveResult<'static>, &'static Event<'static>)| -> Result<Self> {
-            match event {
-                Event::Start(_) => (),
-                Event::Empty(_) => return Ok(RosterQuery),
-                _ => return Err(anyhow!("Unexpected XML event: {event:?}")),
-            }
-            (namespace, event) = yield;
-            match event {
-                Event::End(_) => return Ok(RosterQuery),
-                _ => return Err(anyhow!("Unexpected XML event: {event:?}")),
-            }
-        }
+        QueryParser(QueryParserInner::Initial)
     }
 }
 
@@ -35,6 +52,9 @@ impl FromXmlTag for RosterQuery {
 
 impl ToXml for RosterQuery {
     fn serialize(&self, events: &mut Vec<Event<'static>>) {
-        events.push(Event::Empty(BytesStart::new(format!(r#"query xmlns="{}""#, XMLNS))));
+        events.push(Event::Empty(BytesStart::new(format!(
+            r#"query xmlns="{}""#,
+            XMLNS
+        ))));
     }
 }

crates/proto-xmpp/src/session.rs

@@ -2,29 +2,48 @@ use quick_xml::events::{BytesStart, Event};
 
 use crate::xml::*;
 use anyhow::{anyhow, Result};
-use quick_xml::name::ResolveResult;
 
 pub const XMLNS: &'static str = "urn:ietf:params:xml:ns:xmpp-session";
 
 #[derive(PartialEq, Eq, Debug)]
 pub struct Session;
 
+pub struct SessionParser(SessionParserInner);
+
+enum SessionParserInner {
+    Initial,
+    InSession,
+}
+
+impl Parser for SessionParser {
+    type Output = Result<Session>;
+
+    fn consume<'a>(
+        self: Self,
+        namespace: quick_xml::name::ResolveResult,
+        event: &quick_xml::events::Event<'a>,
+    ) -> Continuation<Self, Self::Output> {
+        match self.0 {
+            SessionParserInner::Initial => match event {
+                Event::Start(_) => {
+                    Continuation::Continue(SessionParser(SessionParserInner::InSession))
+                }
+                Event::Empty(_) => Continuation::Final(Ok(Session)),
+                _ => Continuation::Final(Err(anyhow!("Unexpected XML event: {event:?}"))),
+            },
+            SessionParserInner::InSession => match event {
+                Event::End(_) => Continuation::Final(Ok(Session)),
+                _ => Continuation::Final(Err(anyhow!("Unexpected XML event: {event:?}"))),
+            },
+        }
+    }
+}
+
 impl FromXml for Session {
-    type P = impl Parser<Output = Result<Self>>;
+    type P = SessionParser;
 
     fn parse() -> Self::P {
-        |(mut namespace, mut event): (ResolveResult<'static>, &'static Event<'static>)| -> Result<Self> {
-            match event {
-                Event::Start(_) => (),
-                Event::Empty(_) => return Ok(Session),
-                _ => return Err(anyhow!("Unexpected XML event: {event:?}")),
-            }
-            (namespace, event) = yield;
-            match event {
-                Event::End(_) => return Ok(Session),
-                _ => return Err(anyhow!("Unexpected XML event: {event:?}")),
-            }
-        }
+        SessionParser(SessionParserInner::Initial)
     }
 }
 
@@ -35,6 +54,9 @@ impl FromXmlTag for Session {
 
 impl ToXml for Session {
     fn serialize(&self, events: &mut Vec<Event<'static>>) {
-        events.push(Event::Empty(BytesStart::new(format!(r#"session xmlns="{}""#, XMLNS))));
+        events.push(Event::Empty(BytesStart::new(format!(
+            r#"session xmlns="{}""#,
+            XMLNS
+        ))));
     }
 }

crates/proto-xmpp/src/stream.rs

@@ -6,8 +6,8 @@ use tokio::io::{AsyncBufRead, AsyncWrite};
 
 use super::skip_text;
 
-use crate::xml::ToXml;
 use anyhow::{anyhow, Result};
+use crate::xml::ToXml;
 
 pub static XMLNS: &'static str = "http://etherx.jabber.org/streams";
 pub static PREFIX: &'static str = "stream";
@@ -24,17 +24,7 @@ impl ClientStreamStart {
         reader: &mut NsReader<impl AsyncBufRead + Unpin>,
         buf: &mut Vec<u8>,
     ) -> Result<ClientStreamStart> {
-        let mut incoming = skip_text!(reader, buf);
-        if let Event::Decl(bytes) = incoming {
-            // this is <?xml ...> header
-            if let Some(encoding) = bytes.encoding() {
-                let encoding = encoding?;
-                if &*encoding != b"UTF-8" {
-                    return Err(anyhow!("Unsupported encoding: {encoding:?}"));
-                }
-            }
-            incoming = skip_text!(reader, buf);
-        }
+        let incoming = skip_text!(reader, buf);
         if let Event::Start(e) = incoming {
             let (ns, local) = reader.resolve_element(e.name());
             if ns != ResolveResult::Bound(Namespace(XMLNS.as_bytes())) {
@@ -54,7 +44,10 @@ impl ClientStreamStart {
                         let value = attr.unescape_value()?;
                         to = Some(value.to_string());
                     }
-                    (ResolveResult::Bound(Namespace(b"http://www.w3.org/XML/1998/namespace")), b"lang") => {
+                    (
+                        ResolveResult::Bound(Namespace(b"http://www.w3.org/XML/1998/namespace")),
+                        b"lang",
+                    ) => {
                         let value = attr.unescape_value()?;
                         lang = Some(value.to_string());
                     }
@@ -131,15 +124,21 @@ pub struct Features {
 }
 impl Features {
     pub async fn write_xml(&self, writer: &mut Writer<impl AsyncWrite + Unpin>) -> Result<()> {
-        writer.write_event_async(Event::Start(BytesStart::new("stream:features"))).await?;
+        writer
+            .write_event_async(Event::Start(BytesStart::new("stream:features")))
+            .await?;
         if self.start_tls {
             writer
                 .write_event_async(Event::Start(BytesStart::new(
                     r#"starttls  xmlns="urn:ietf:params:xml:ns:xmpp-tls""#,
                 )))
                 .await?;
-            writer.write_event_async(Event::Empty(BytesStart::new("required"))).await?;
-            writer.write_event_async(Event::End(BytesEnd::new("starttls"))).await?;
+            writer
+                .write_event_async(Event::Empty(BytesStart::new("required")))
+                .await?;
+            writer
+                .write_event_async(Event::End(BytesEnd::new("starttls")))
+                .await?;
         }
         if self.mechanisms {
             writer
@@ -147,10 +146,18 @@ impl Features {
                     r#"mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl""#,
                 )))
                 .await?;
-            writer.write_event_async(Event::Start(BytesStart::new(r#"mechanism"#))).await?;
-            writer.write_event_async(Event::Text(BytesText::new("PLAIN"))).await?;
-            writer.write_event_async(Event::End(BytesEnd::new("mechanism"))).await?;
-            writer.write_event_async(Event::End(BytesEnd::new("mechanisms"))).await?;
+            writer
+                .write_event_async(Event::Start(BytesStart::new(r#"mechanism"#)))
+                .await?;
+            writer
+                .write_event_async(Event::Text(BytesText::new("PLAIN")))
+                .await?;
+            writer
+                .write_event_async(Event::End(BytesEnd::new("mechanism")))
+                .await?;
+            writer
+                .write_event_async(Event::End(BytesEnd::new("mechanisms")))
+                .await?;
         }
         if self.bind {
             writer
@@ -159,7 +166,9 @@ impl Features {
                 )))
                 .await?;
         }
-        writer.write_event_async(Event::End(BytesEnd::new("stream:features"))).await?;
+        writer
+            .write_event_async(Event::End(BytesEnd::new("stream:features")))
+            .await?;
         Ok(())
     }
 }
@@ -173,7 +182,9 @@ mod test {
         let input = r###"<stream:stream xmlns:stream="http://etherx.jabber.org/streams" to="vlnv.dev" version="1.0" xmlns="jabber:client" xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace">"###;
         let mut reader = NsReader::from_reader(input.as_bytes());
         let mut buf = vec![];
-        let res = ClientStreamStart::parse(&mut reader, &mut buf).await.unwrap();
+        let res = ClientStreamStart::parse(&mut reader, &mut buf)
+            .await
+            .unwrap();
         assert_eq!(
             res,
             ClientStreamStart {

crates/proto-xmpp/src/tls.rs

@@ -12,7 +12,10 @@ pub static XMLNS: &'static str = "urn:ietf:params:xml:ns:xmpp-tls";
 
 pub struct StartTLS;
 impl StartTLS {
-    pub async fn parse(reader: &mut NsReader<impl AsyncBufRead + Unpin>, buf: &mut Vec<u8>) -> Result<StartTLS> {
+    pub async fn parse(
+        reader: &mut NsReader<impl AsyncBufRead + Unpin>,
+        buf: &mut Vec<u8>,
+    ) -> Result<StartTLS> {
         let incoming = skip_text!(reader, buf);
         if let Event::Empty(ref e) = incoming {
             if e.name().0 == b"starttls" {

crates/proto-xmpp/src/xml/ignore.rs

@@ -1,35 +1,59 @@
 use super::*;
+use derive_more::From;
 
 #[derive(Default, Debug, PartialEq, Eq)]
 pub struct Ignore;
 
+#[derive(From)]
+pub struct IgnoreParser(IgnoreParserInner);
+
+enum IgnoreParserInner {
+    Initial,
+    InTag { name: Vec<u8>, depth: u8 },
+}
+
+impl Parser for IgnoreParser {
+    type Output = Result<Ignore>;
+
+    fn consume<'a>(
+        self: Self,
+        _: ResolveResult,
+        event: &Event<'a>,
+    ) -> Continuation<Self, Self::Output> {
+        match self.0 {
+            IgnoreParserInner::Initial => match event {
+                Event::Start(bytes) => {
+                    let name = bytes.name().0.to_owned();
+                    Continuation::Continue(IgnoreParserInner::InTag { name, depth: 0 }.into())
+                }
+                Event::Empty(_) => Continuation::Final(Ok(Ignore)),
+                _ => Continuation::Final(Ok(Ignore)),
+            },
+            IgnoreParserInner::InTag { name, depth } => match event {
+                Event::End(bytes) if name == bytes.name().0 => {
+                    if depth == 0 {
+                        Continuation::Final(Ok(Ignore))
+                    } else {
+                        Continuation::Continue(
+                            IgnoreParserInner::InTag {
+                                name,
+                                depth: depth - 1,
+                            }
+                            .into(),
+                        )
+                    }
+                }
+                _ => Continuation::Continue(IgnoreParserInner::InTag { name, depth }.into()),
+            },
+        }
+    }
+}
+
 impl FromXml for Ignore {
-    type P = impl Parser<Output = Result<Self>>;
+    type P = IgnoreParser;
 
     fn parse() -> Self::P {
-        |(mut namespace, mut event): (ResolveResult<'static>, &'static Event<'static>)| -> Result<Self> {
-            let mut depth = match event {
-                Event::Start(bytes) => 0,
-                Event::Empty(_) => return Ok(Ignore),
-                _ => return Ok(Ignore),
-            };
-            loop {
-                (namespace, event) = yield;
-                match event {
-                    Event::End(_) => {
-                        if depth == 0 {
-                            return Ok(Ignore);
-                        } else {
-                            depth -= 1;
-                        }
-                    }
-                    Event::Start(_) => {
-                        depth += 1;
-                    }
-                    _ => (),
-                }
-            }
-        }
+        IgnoreParserInner::Initial.into()
     }
 }
 

crates/proto-xmpp/src/xml/mod.rs

@@ -1,9 +1,9 @@
 use std::ops::Coroutine;
 use std::pin::Pin;
 
+use quick_xml::NsReader;
 use quick_xml::events::Event;
 use quick_xml::name::ResolveResult;
-use quick_xml::NsReader;
 
 use anyhow::Result;
 
@@ -28,16 +28,25 @@ pub trait FromXmlTag: FromXml {
 pub trait Parser: Sized {
     type Output;
 
-    fn consume<'a>(self: Self, namespace: ResolveResult, event: &Event<'a>) -> Continuation<Self, Self::Output>;
+    fn consume<'a>(
+        self: Self,
+        namespace: ResolveResult,
+        event: &Event<'a>,
+    ) -> Continuation<Self, Self::Output>;
 }
 
 impl<T, Out> Parser for T
 where
-    T: Coroutine<(ResolveResult<'static>, &'static Event<'static>), Yield = (), Return = Out> + Unpin,
+    T: Coroutine<(ResolveResult<'static>, &'static Event<'static>), Yield = (), Return = Out>
+        + Unpin,
 {
     type Output = Out;
 
-    fn consume<'a>(mut self: Self, namespace: ResolveResult, event: &Event<'a>) -> Continuation<Self, Self::Output> {
+    fn consume<'a>(
+        mut self: Self,
+        namespace: ResolveResult,
+        event: &Event<'a>,
+    ) -> Continuation<Self, Self::Output> {
         let s = Pin::new(&mut self);
         // this is a very rude workaround fixing the fact that rust coroutines
         // 1. don't support higher-kinded lifetimes (i.e. no `impl for <'a> Coroutine<Event<'a>>)

docs/cheatsheet.md

@@ -8,12 +8,11 @@ Some useful commands for development and testing.
 
 Following commands require `OpenSSL` to be installed. It is provided as `openssl` package in Arch Linux.
 
-Generate self-signed TLS certificate. Mind the common name (CN) field, it should match the domain name of the server.
-Example for localhost:
+Generate self-signed TLS certificate:
 
     openssl req -x509 -newkey rsa:4096 -sha256 -days 365 -noenc \
     -keyout certs/xmpp.key -out certs/xmpp.pem \
-    -subj "/CN=localhost"
+    -subj "/CN=example.com"
 
 Print content of a TLS certificate:
 

docs/running.md

@@ -19,7 +19,6 @@ server_name = "irc.localhost"
 listen_on = "127.0.0.1:5222"
 cert = "./certs/xmpp.pem"
 key = "./certs/xmpp.key"
-hostname = "localhost"
 
 [storage]
 db_path = "db.sqlite"

readme.md

@@ -2,9 +2,9 @@
 
 Multiprotocol chat server based on open protocols.
 
-- [How to run Lavina locally](docs/running.md)
-- [Architectural diagrams](docs/flow.md)
-- [Project structure](crates/readme.md)
+- [How to run Lavina locally](/docs/running.md)
+- [Architectural diagrams](/docs/flow.md)
+- [Project structure](crates)
 
 ## Goals
 

rust-toolchain

@@ -1 +1 @@
-nightly-2024-04-19
+nightly-2023-12-07

rustfmt.toml

@@ -1,2 +1 @@
 max_width = 120
-chain_width = 120

src/main.rs

@@ -52,7 +52,7 @@ async fn main() -> Result<()> {
     let mut metrics = MetricsRegistry::new();
     let storage = Storage::open(storage_config).await?;
     let rooms = RoomRegistry::new(&mut metrics, storage.clone())?;
-    let mut players = PlayerRegistry::empty(rooms.clone(), storage.clone(), &mut metrics)?;
+    let mut players = PlayerRegistry::empty(rooms.clone(), &mut metrics)?;
     let telemetry_terminator = http::launch(telemetry_config, metrics.clone(), rooms.clone(), storage.clone()).await?;
     let irc = projection_irc::launch(
         irc_config,
@@ -62,14 +62,7 @@ async fn main() -> Result<()> {
         storage.clone(),
     )
     .await?;
-    let xmpp = projection_xmpp::launch(
-        xmpp_config,
-        players.clone(),
-        rooms.clone(),
-        metrics.clone(),
-        storage.clone(),
-    )
-    .await?;
+    let xmpp = projection_xmpp::launch(xmpp_config, players.clone(), rooms.clone(), metrics.clone(), storage.clone()).await?;
     tracing::info!("Started");
 
     sleep.await;