Merge branch 'develop'

soulseek-rs-lib/src/actor/server_actor.rs

@@ -18,6 +18,7 @@ use crate::message::server::ReloggedHandler;
 use crate::message::server::SayChatroomHandler;
 use crate::message::server::UserJoinedRoomHandler;
 use crate::message::server::UserLeftRoomHandler;
+use crate::message::server::WatchUserHandler;
 use crate::message::server::WishListIntervalHandler;
 use crate::message::server::{
     GetUserStatsHandler, GetUserStatusHandler, RoomListHandler,
@@ -27,7 +28,8 @@ use crate::message::{Message, MessageReader};
 use crate::peer::ConnectionType;
 use crate::peer::Peer;
 use crate::types::{
-    ClientVersion, RoomEvent, RoomInfo, SessionLoss, SessionWatch,
+    ClientVersion, RoomEvent, RoomInfo, RoomUserStats, SessionLoss,
+    SessionWatch,
 };
 use crate::utils::lock::RwLockExt;
 
@@ -202,6 +204,17 @@ pub enum ServerMessage {
         status: u32,
         privileged: bool,
     },
+    /// A `WatchUser` (code 5) reply: the initial snapshot for a user we just
+    /// started watching. The stats are absent when the server does not know
+    /// the username.
+    WatchedUserReceived {
+        username: String,
+        exists: bool,
+        status: Option<u32>,
+        average_speed: Option<u32>,
+        shared_files: Option<u32>,
+        shared_folders: Option<u32>,
+    },
     /// A `GetUserStats` (code 36) reply.
     UserStatsReceived {
         username: String,
@@ -213,6 +226,11 @@ pub enum ServerMessage {
         room: String,
         users: Vec<String>,
     },
+    /// Per-member statistics carried by the same `JoinRoom` (code 14) reply.
+    RoomMemberStats {
+        room: String,
+        stats: Vec<RoomUserStats>,
+    },
     RoomLeft {
         room: String,
     },
@@ -359,6 +377,7 @@ impl ServerActor {
         handlers.register_handler(ReloggedHandler);
         handlers.register_handler(RoomListHandler);
         handlers.register_handler(GetUserStatusHandler);
+        handlers.register_handler(WatchUserHandler);
         handlers.register_handler(GetUserStatsHandler);
         handlers.register_handler(JoinRoomHandler);
         handlers.register_handler(LeaveRoomHandler);
@@ -464,6 +483,23 @@ impl ServerActor {
                     privileged,
                 });
             }
+            ServerMessage::WatchedUserReceived {
+                username,
+                exists,
+                status,
+                average_speed,
+                shared_files,
+                shared_folders,
+            } => {
+                self.forward_to_client(ClientOperation::WatchedUserReceived {
+                    username,
+                    exists,
+                    status,
+                    average_speed,
+                    shared_files,
+                    shared_folders,
+                });
+            }
             ServerMessage::UserStatsReceived {
                 username,
                 average_speed,
@@ -480,6 +516,12 @@ impl ServerActor {
             ServerMessage::RoomJoined { room, users } => {
                 self.forward_room_event(RoomEvent::Joined { room, users });
             }
+            ServerMessage::RoomMemberStats { room, stats } => {
+                self.forward_to_client(ClientOperation::RoomMemberStats {
+                    room,
+                    stats,
+                });
+            }
             ServerMessage::RoomLeft { room } => {
                 self.forward_room_event(RoomEvent::Left { room });
             }

soulseek-rs-lib/src/client/mod.rs

@@ -5,7 +5,8 @@ use crate::actor::server_actor::{
 use crate::download_store::{DownloadStore, collect_failed_tokens};
 use crate::types::{
     ClientVersion, DownloadMetadata, DownloadStatus, RoomEvent, RoomInfo,
-    SessionLoss, SessionWatch, UserInfo, UserPresence, UserStats, UserStatus,
+    RoomUserStats, SessionLoss, SessionWatch, UserInfo, UserPresence,
+    UserStats, UserStatus,
 };
 use crate::utils::logger;
 use crate::{
@@ -245,6 +246,15 @@ pub enum ClientOperation {
         shared_files: u32,
         shared_folders: u32,
     },
+    /// The server answered `WatchUser` for a user we started watching.
+    WatchedUserReceived {
+        username: String,
+        exists: bool,
+        status: Option<u32>,
+        average_speed: Option<u32>,
+        shared_files: Option<u32>,
+        shared_folders: Option<u32>,
+    },
     PeerConnected(String),
     /// A search distributed to us by the server; reply if our shares match.
     IncomingSearch {
@@ -278,6 +288,11 @@ pub enum ClientOperation {
     /// Something happened in the chat-room subsystem (list refreshed, a room
     /// joined/left, a message said, a member joined/left).
     RoomEvent(RoomEvent),
+    /// Per-member statistics from a `JoinRoom` reply.
+    RoomMemberStats {
+        room: String,
+        stats: Vec<RoomUserStats>,
+    },
     /// The server announced how many seconds must pass between wishlist
     /// searches.
     WishlistInterval(u32),
@@ -325,9 +340,16 @@ pub struct ClientContext {
     /// Who is in each room we have joined, kept current from the membership
     /// the server sends on join plus the later join/leave events.
     room_members: HashMap<String, Vec<String>>,
+    /// Per-member statistics for each joined room, from the stat vectors the
+    /// server sends alongside the membership list.
+    room_member_stats: HashMap<String, Vec<RoomUserStats>>,
     /// What the server has told us about other users, merged across the
     /// separate status and statistics replies.
     user_info: HashMap<String, UserInfo>,
+    /// Users we asked the server to watch (code 5), so it keeps pushing their
+    /// status changes. Kept so a UI can render the watch list and so an
+    /// unwatch can be rejected for someone we never watched.
+    watched_users: HashSet<String>,
     /// Seconds the server wants between wishlist searches (code 104), once it
     /// has told us.
     wishlist_interval: Option<u32>,
@@ -415,7 +437,9 @@ impl ClientContext {
             room_list: Vec::new(),
             room_events: Vec::new(),
             room_members: HashMap::new(),
+            room_member_stats: HashMap::new(),
             user_info: HashMap::new(),
+            watched_users: HashSet::new(),
             wishlist_interval: None,
             privileged_users: HashSet::new(),
             own_privileges: None,
@@ -503,6 +527,69 @@ impl ClientContext {
         });
     }
 
+    /// Record that we are now watching `username`.
+    pub fn add_watched_user(&mut self, username: &str) {
+        self.watched_users.insert(username.to_string());
+    }
+
+    /// Forget a watch, dropping any snapshot we held for that user so a later
+    /// re-watch reports a fresh answer rather than a stale one.
+    pub fn remove_watched_user(&mut self, username: &str) {
+        self.watched_users.remove(username);
+        self.user_info.remove(username);
+    }
+
+    /// Everyone we are currently watching, sorted by name.
+    #[must_use]
+    pub fn watched_users(&self) -> Vec<String> {
+        let mut users: Vec<String> =
+            self.watched_users.iter().cloned().collect();
+        users.sort();
+        users
+    }
+
+    /// Record the initial snapshot from a `WatchUser` reply. A username the
+    /// server does not know carries no stats and is dropped from the watch
+    /// list, since the server will never push anything for it.
+    pub fn apply_watched_user(
+        &mut self,
+        username: String,
+        exists: bool,
+        status: Option<u32>,
+        average_speed: Option<u32>,
+        shared_files: Option<u32>,
+        shared_folders: Option<u32>,
+    ) {
+        if !exists {
+            self.watched_users.remove(&username);
+            return;
+        }
+        if let Some(status) = status {
+            let entry = self
+                .user_info
+                .entry(username.clone())
+                .or_insert_with(|| UserInfo::pending(username.clone()));
+            // The watch reply carries no privileged flag, so keep whatever a
+            // previous GetUserStatus told us rather than asserting `false`.
+            let privileged =
+                entry.presence.as_ref().is_some_and(|p| p.privileged);
+            entry.presence = Some(UserPresence {
+                status: UserStatus::from_code(status),
+                privileged,
+            });
+        }
+        if let (Some(average_speed), Some(shared_files), Some(shared_folders)) =
+            (average_speed, shared_files, shared_folders)
+        {
+            self.apply_user_stats(
+                username,
+                average_speed,
+                shared_files,
+                shared_folders,
+            );
+        }
+    }
+
     /// What the server has said about `username` so far.
     #[must_use]
     pub fn user_info(&self, username: &str) -> Option<UserInfo> {
@@ -515,6 +602,29 @@ impl ClientContext {
         self.room_members.get(room).cloned().unwrap_or_default()
     }
 
+    /// Record the per-member statistics of a room we just joined, replacing
+    /// any previous snapshot for it.
+    pub fn apply_room_member_stats(
+        &mut self,
+        room: String,
+        stats: Vec<RoomUserStats>,
+    ) {
+        self.room_member_stats.insert(room, stats);
+    }
+
+    /// What the server reported about the members of `room`, sorted by name,
+    /// or empty for a room we have not joined.
+    #[must_use]
+    pub fn room_member_stats(&self, room: &str) -> Vec<RoomUserStats> {
+        let mut stats = self
+            .room_member_stats
+            .get(room)
+            .cloned()
+            .unwrap_or_default();
+        stats.sort_by(|a, b| a.username.cmp(&b.username));
+        stats
+    }
+
     /// The latest snapshot of the public chat-room list.
     #[must_use]
     pub fn room_list(&self) -> Vec<RoomInfo> {

soulseek-rs-lib/src/client/operations.rs

@@ -473,12 +473,42 @@ impl Client {
                             error!("[client] UserStatsReceived write: {}", e);
                         }
                     },
+                    ClientOperation::WatchedUserReceived {
+                        username,
+                        exists,
+                        status,
+                        average_speed,
+                        shared_files,
+                        shared_folders,
+                    } => match client_context.write_safe() {
+                        Ok(mut ctx) => ctx.apply_watched_user(
+                            username,
+                            exists,
+                            status,
+                            average_speed,
+                            shared_files,
+                            shared_folders,
+                        ),
+                        Err(e) => {
+                            error!("[client] WatchedUserReceived write: {}", e);
+                        }
+                    },
                     ClientOperation::RoomEvent(event) => {
                         match client_context.write_safe() {
                             Ok(mut ctx) => ctx.apply_room_event(event),
                             Err(e) => error!("[client] RoomEvent write: {}", e),
                         }
                     }
+                    ClientOperation::RoomMemberStats { room, stats } => {
+                        match client_context.write_safe() {
+                            Ok(mut ctx) => {
+                                ctx.apply_room_member_stats(room, stats);
+                            }
+                            Err(e) => {
+                                error!("[client] RoomMemberStats write: {}", e);
+                            }
+                        }
+                    }
                     ClientOperation::WishlistInterval(seconds) => {
                         if let Ok(mut ctx) = client_context.write_safe() {
                             ctx.wishlist_interval = Some(seconds);

soulseek-rs-lib/src/client/rooms.rs

@@ -2,7 +2,7 @@ use super::{
     Client, PeerMessage, Result, RoomEvent, RoomInfo, RwLockExt, ServerMessage,
     SharedDirectory, SoulseekRs, UserMessage, error,
 };
-use crate::types::UserInfo;
+use crate::types::{RoomUserStats, UserInfo};
 
 impl Client {
     /// Send a private message to another user via the server.
@@ -138,6 +138,46 @@ impl Client {
         }
     }
 
+    /// Ask the server to watch `username` (code 5).
+    ///
+    /// The server replies with that user's current status and share
+    /// statistics — readable with [`Client::user_info`] — and then keeps
+    /// pushing their status changes until [`Client::unwatch_user`]. Watching
+    /// a user the server does not know is answered with a "does not exist"
+    /// flag, and that user is dropped from [`Client::watched_users`].
+    ///
+    /// # Errors
+    /// Returns [`SoulseekRs::NotConnected`] if the client is not connected.
+    pub fn watch_user(&self, username: &str) -> Result<()> {
+        use crate::message::server::MessageFactory;
+        self.send_server_message(MessageFactory::build_watch_user(username))?;
+        self.context.write_safe()?.add_watched_user(username);
+        Ok(())
+    }
+
+    /// Stop watching `username` (code 6) and drop what we knew about them.
+    ///
+    /// # Errors
+    /// Returns [`SoulseekRs::NotConnected`] if the client is not connected.
+    pub fn unwatch_user(&self, username: &str) -> Result<()> {
+        use crate::message::server::MessageFactory;
+        self.send_server_message(MessageFactory::build_unwatch_user(username))?;
+        self.context.write_safe()?.remove_watched_user(username);
+        Ok(())
+    }
+
+    /// Everyone this client is currently watching, sorted by name.
+    #[must_use]
+    pub fn watched_users(&self) -> Vec<String> {
+        match self.context.read_safe() {
+            Ok(ctx) => ctx.watched_users(),
+            Err(e) => {
+                error!("[client] watched_users: {}", e);
+                Vec::new()
+            }
+        }
+    }
+
     /// Who is currently in `room`, sorted by name.
     ///
     /// The roster is built from the membership the server sends when
@@ -156,6 +196,24 @@ impl Client {
         }
     }
 
+    /// What the server reported about the members of `room` when we joined:
+    /// their status, share statistics, free upload slots and country.
+    ///
+    /// Populated from the same reply that fills [`Client::room_members`], so
+    /// it lands shortly after joining. Unlike the roster it is not updated by
+    /// later join and leave events -- it is the snapshot taken at join time.
+    /// Returns an empty list for a room this client has not joined.
+    #[must_use]
+    pub fn room_member_stats(&self, room: &str) -> Vec<RoomUserStats> {
+        match self.context.read_safe() {
+            Ok(ctx) => ctx.room_member_stats(room),
+            Err(e) => {
+                error!("[client] room_member_stats: {}", e);
+                Vec::new()
+            }
+        }
+    }
+
     /// Remove and return all chat-room events received since the last call.
     #[must_use]
     pub fn take_room_events(&self) -> Vec<RoomEvent> {

soulseek-rs-lib/src/client/tests.rs

@@ -622,3 +622,133 @@ fn a_replayed_transfer_response_does_not_start_a_second_transfer() {
         "a replayed TransferResponse must not dial the peer again"
     );
 }
+
+#[test]
+fn room_member_stats_are_returned_sorted_and_scoped_to_their_room() {
+    use crate::types::{RoomUserStats, UserStatus};
+    let stat = |username: &str| RoomUserStats {
+        username: username.to_string(),
+        status: UserStatus::Online,
+        average_speed: 1,
+        shared_files: 2,
+        shared_folders: 3,
+        slots_full: true,
+        country: None,
+    };
+
+    let mut context = ClientContext::new();
+    context.apply_room_member_stats(
+        "jazz".to_string(),
+        vec![stat("carol"), stat("alice")],
+    );
+
+    let names: Vec<String> = context
+        .room_member_stats("jazz")
+        .into_iter()
+        .map(|s| s.username)
+        .collect();
+    assert_eq!(names, vec!["alice", "carol"]);
+    assert!(context.room_member_stats("unjoined").is_empty());
+}
+
+#[test]
+fn rejoining_replaces_the_previous_member_stats() {
+    use crate::types::{RoomUserStats, UserStatus};
+    let stat = |username: &str| RoomUserStats {
+        username: username.to_string(),
+        status: UserStatus::Online,
+        average_speed: 1,
+        shared_files: 2,
+        shared_folders: 3,
+        slots_full: false,
+        country: None,
+    };
+
+    let mut context = ClientContext::new();
+    context.apply_room_member_stats("jazz".to_string(), vec![stat("alice")]);
+    context.apply_room_member_stats("jazz".to_string(), vec![stat("bob")]);
+
+    let stats = context.room_member_stats("jazz");
+    assert_eq!(stats.len(), 1, "a rejoin supersedes the old snapshot");
+    assert_eq!(stats[0].username, "bob");
+}
+
+#[test]
+fn a_watch_reply_fills_both_halves_of_the_snapshot() {
+    let mut context = ClientContext::new();
+    context.add_watched_user("alice");
+    context.apply_watched_user(
+        "alice".to_string(),
+        true,
+        Some(2),
+        Some(1024),
+        Some(20),
+        Some(3),
+    );
+
+    let info = context.user_info("alice").expect("a snapshot");
+    assert!(info.is_complete(), "a watch reply carries status and stats");
+    assert_eq!(info.stats.map(|s| s.average_speed), Some(1024));
+    assert_eq!(context.watched_users(), vec!["alice".to_string()]);
+}
+
+#[test]
+fn a_watch_reply_keeps_a_privileged_flag_it_cannot_carry() {
+    // WatchUser has no privileged field, so it must not overwrite what
+    // GetUserStatus already told us with a fabricated `false`.
+    let mut context = ClientContext::new();
+    context.apply_user_status("bob".to_string(), 1, true);
+    context.apply_watched_user(
+        "bob".to_string(),
+        true,
+        Some(2),
+        Some(1),
+        Some(2),
+        Some(3),
+    );
+
+    let info = context.user_info("bob").expect("a snapshot");
+    assert_eq!(info.presence.map(|p| p.privileged), Some(true));
+}
+
+#[test]
+fn watching_an_unknown_user_drops_them_from_the_list() {
+    // The server will never push status for a name it does not know, so
+    // keeping it in the watch list would show a permanently blank row.
+    let mut context = ClientContext::new();
+    context.add_watched_user("ghost");
+    context.apply_watched_user(
+        "ghost".to_string(),
+        false,
+        None,
+        None,
+        None,
+        None,
+    );
+
+    assert!(context.watched_users().is_empty());
+    assert!(context.user_info("ghost").is_none());
+}
+
+#[test]
+fn unwatching_forgets_the_users_snapshot() {
+    let mut context = ClientContext::new();
+    context.add_watched_user("alice");
+    context.apply_user_status("alice".to_string(), 2, false);
+
+    context.remove_watched_user("alice");
+    assert!(context.watched_users().is_empty());
+    assert!(
+        context.user_info("alice").is_none(),
+        "a later re-watch must report a fresh answer"
+    );
+}
+
+#[test]
+fn watched_users_are_listed_in_a_stable_order() {
+    let mut context = ClientContext::new();
+    context.add_watched_user("carol");
+    context.add_watched_user("alice");
+    context.add_watched_user("bob");
+    assert_eq!(context.watched_users(), vec!["alice", "bob", "carol"]);
+}

soulseek-rs-lib/src/message/server/join_room.rs

@@ -1,6 +1,7 @@
 use crate::{
     actor::server_actor::ServerMessage,
     message::{Message, MessageHandler},
+    types::{RoomUserStats, UserStatus},
 };
 use std::sync::mpsc::Sender;
 
@@ -12,24 +13,105 @@ impl MessageHandler<ServerMessage> for JoinRoomHandler {
     }
 
     fn handle(&self, message: &mut Message, sender: Sender<ServerMessage>) {
-        // JoinRoom (code 14): room name, then a vector of member usernames.
+        // JoinRoom (code 14): room name, the member usernames, then the
-        // Per-user stat vectors follow but are not needed here, so we stop
+        // parallel per-member stat vectors.
-        // after reading the names.
         let room = message.read_string();
-        let user_count = message.read_int32();
+        let users = read_strings(message);
-        let mut users = Vec::new();
+        let stats = parse_member_stats(message, &users);
-        for _ in 0..user_count {
+        let _ = sender.send(ServerMessage::RoomJoined {
-            // Guard against a hostile user_count outrunning the payload; each
+            room: room.clone(),
-            // username is a length-prefixed string (>= 4 bytes).
+            users,
-            if message.get_pointer() + 4 > message.get_size() {
+        });
-                break;
+        if !stats.is_empty() {
-            }
+            let _ = sender.send(ServerMessage::RoomMemberStats { room, stats });
-            users.push(message.read_string());
         }
-        let _ = sender.send(ServerMessage::RoomJoined { room, users });
     }
 }
 
+/// Read a length-prefixed vector of strings, stopping early if the count
+/// outruns the payload: a bogus (possibly hostile) count must not spin us
+/// into an OOM allocation loop. A 4-byte floor is the smallest a
+/// length-prefixed string can be.
+fn read_strings(message: &mut Message) -> Vec<String> {
+    let count = message.read_int32();
+    let mut values = Vec::new();
+    for _ in 0..count {
+        if message.get_pointer() + 4 > message.get_size() {
+            break;
+        }
+        values.push(message.read_string());
+    }
+    values
+}
+
+/// Read a length-prefixed vector of 32-bit values, bounded the same way.
+fn read_int32s(message: &mut Message) -> Vec<u32> {
+    let count = message.read_int32();
+    let mut values = Vec::new();
+    for _ in 0..count {
+        if message.get_pointer() + 4 > message.get_size() {
+            break;
+        }
+        values.push(message.read_int32());
+    }
+    values
+}
+
+/// Parse the per-member statistics that follow the membership list of a
+/// `JoinRoom` (code 14) reply: statuses, then a record of share statistics per
+/// member, then whether each member's upload slots are full, then country
+/// codes.
+///
+/// Each vector is independently length-prefixed and a server may send fewer
+/// entries than there are members (or, on an older server, omit the country
+/// vector entirely), so every field is looked up positionally and defaults
+/// when absent rather than shifting the whole roster.
+#[must_use]
+fn parse_member_stats(
+    message: &mut Message,
+    users: &[String],
+) -> Vec<RoomUserStats> {
+    let statuses = read_int32s(message);
+
+    let stat_count = message.read_int32();
+    let mut shares = Vec::new();
+    for _ in 0..stat_count {
+        // A share record is 20 bytes: speed, an obsolete 64-bit upload
+        // number, files and folders.
+        if message.get_pointer() + 20 > message.get_size() {
+            break;
+        }
+        let average_speed = message.read_int32();
+        let _upload_number = message.read_int64(); // obsolete
+        let shared_files = message.read_int32();
+        let shared_folders = message.read_int32();
+        shares.push((average_speed, shared_files, shared_folders));
+    }
+
+    let slots_full = read_int32s(message);
+    let countries = read_strings(message);
+
+    users
+        .iter()
+        .enumerate()
+        .map(|(i, username)| {
+            let (average_speed, shared_files, shared_folders) =
+                shares.get(i).copied().unwrap_or((0, 0, 0));
+            RoomUserStats {
+                username: username.clone(),
+                status: UserStatus::from_code(
+                    statuses.get(i).copied().unwrap_or(0),
+                ),
+                average_speed,
+                shared_files,
+                shared_folders,
+                slots_full: slots_full.get(i).copied().unwrap_or(0) != 0,
+                country: countries.get(i).cloned().filter(|c| !c.is_empty()),
+            }
+        })
+        .collect()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -53,6 +135,158 @@ mod tests {
         }
     }
 
+    /// A full JoinRoom payload: room, members, then the four parallel stat
+    /// vectors the server sends for them.
+    fn join_payload() -> Message {
+        framed(|m| {
+            m.write_string("nicotine")
+                .write_int32(2)
+                .write_string("alice")
+                .write_string("bob")
+                // statuses
+                .write_int32(2)
+                .write_int32(2)
+                .write_int32(1)
+                // share records
+                .write_int32(2)
+                .write_int32(1024)
+                .write_int64(0)
+                .write_int32(4321)
+                .write_int32(77)
+                .write_int32(50)
+                .write_int64(0)
+                .write_int32(10)
+                .write_int32(2)
+                // slots full
+                .write_int32(2)
+                .write_int32(1)
+                .write_int32(0)
+                // countries
+                .write_int32(2)
+                .write_string("NL")
+                .write_string("");
+        })
+    }
+
+    #[test]
+    fn member_stats_are_parsed_alongside_the_roster() {
+        let (tx, rx) = std::sync::mpsc::channel();
+        JoinRoomHandler.handle(&mut join_payload(), tx);
+
+        assert!(matches!(
+            rx.try_recv(),
+            Ok(ServerMessage::RoomJoined { .. })
+        ));
+        match rx.try_recv() {
+            Ok(ServerMessage::RoomMemberStats { room, stats }) => {
+                assert_eq!(room, "nicotine");
+                assert_eq!(
+                    stats,
+                    vec![
+                        RoomUserStats {
+                            username: "alice".to_string(),
+                            status: UserStatus::Online,
+                            average_speed: 1024,
+                            shared_files: 4321,
+                            shared_folders: 77,
+                            slots_full: true,
+                            country: Some("NL".to_string()),
+                        },
+                        RoomUserStats {
+                            username: "bob".to_string(),
+                            status: UserStatus::Away,
+                            average_speed: 50,
+                            shared_files: 10,
+                            shared_folders: 2,
+                            slots_full: false,
+                            country: None,
+                        },
+                    ]
+                );
+            }
+            other => panic!("unexpected: {other:?}"),
+        }
+    }
+
+    #[test]
+    fn a_server_that_omits_the_stat_vectors_still_yields_a_roster() {
+        // Nothing after the membership list: every stat reads as a default
+        // rather than shifting the roster or dropping members.
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = framed(|m| {
+            m.write_string("jazz").write_int32(1).write_string("alice");
+        });
+
+        JoinRoomHandler.handle(&mut message, tx);
+        assert!(matches!(
+            rx.try_recv(),
+            Ok(ServerMessage::RoomJoined { .. })
+        ));
+        match rx.try_recv() {
+            Ok(ServerMessage::RoomMemberStats { stats, .. }) => {
+                assert_eq!(stats.len(), 1);
+                assert_eq!(stats[0].username, "alice");
+                assert_eq!(stats[0].average_speed, 0);
+                assert_eq!(stats[0].country, None);
+            }
+            other => panic!("unexpected: {other:?}"),
+        }
+    }
+
+    #[test]
+    fn short_stat_vectors_do_not_shift_the_roster() {
+        // Stats for the first member only: the second must still be reported,
+        // with defaults, rather than inheriting the first member's figures.
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = framed(|m| {
+            m.write_string("jazz")
+                .write_int32(2)
+                .write_string("alice")
+                .write_string("bob")
+                .write_int32(1)
+                .write_int32(2)
+                .write_int32(1)
+                .write_int32(1024)
+                .write_int64(0)
+                .write_int32(9)
+                .write_int32(1)
+                .write_int32(0)
+                .write_int32(0);
+        });
+
+        JoinRoomHandler.handle(&mut message, tx);
+        let _ = rx.try_recv();
+        match rx.try_recv() {
+            Ok(ServerMessage::RoomMemberStats { stats, .. }) => {
+                assert_eq!(stats.len(), 2);
+                assert_eq!(stats[0].shared_files, 9);
+                assert_eq!(stats[1].username, "bob");
+                assert_eq!(stats[1].shared_files, 0);
+                assert_eq!(stats[1].status, UserStatus::Offline);
+            }
+            other => panic!("unexpected: {other:?}"),
+        }
+    }
+
+    #[test]
+    fn hostile_stat_counts_do_not_hang_or_overallocate() {
+        // Vectors claiming ~4 billion entries in a tiny frame must return
+        // promptly, bounded by the payload.
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = framed(|m| {
+            m.write_string("jazz")
+                .write_int32(1)
+                .write_string("alice")
+                .write_int32(u32::MAX);
+        });
+
+        JoinRoomHandler.handle(&mut message, tx);
+        assert!(matches!(
+            rx.try_recv(),
+            Ok(ServerMessage::RoomJoined { .. })
+        ));
+    }
+
     #[test]
     fn forwards_room_and_member_list() {
         let (tx, rx) = std::sync::mpsc::channel();

soulseek-rs-lib/src/message/server/message_factory.rs

@@ -152,6 +152,20 @@ impl MessageFactory {
             .clone()
     }
 
+    /// Watch `username` (server code 5): the server replies with their
+    /// current status and share statistics, then pushes every later status
+    /// change as a `GetUserStatus` (code 7) until we unwatch them.
+    #[must_use]
+    pub fn build_watch_user(username: &str) -> Message {
+        Message::new().write_int32(5).write_string(username).clone()
+    }
+
+    /// Stop watching `username` (server code 6). The server sends no reply.
+    #[must_use]
+    pub fn build_unwatch_user(username: &str) -> Message {
+        Message::new().write_int32(6).write_string(username).clone()
+    }
+
     /// Ask the server (code 64) for the list of public chat rooms.
     #[must_use]
     pub fn build_room_list_request() -> Message {
@@ -424,3 +438,17 @@ fn test_build_file_search_message() {
     .to_vec();
     assert_eq!(expect, message.get_data());
 }
+
+#[test]
+fn test_build_watch_user() {
+    let message = MessageFactory::build_watch_user("bob");
+    let expect: Vec<u8> = [5, 0, 0, 0, 3, 0, 0, 0, b'b', b'o', b'b'].to_vec();
+    assert_eq!(expect, message.get_data());
+}
+
+#[test]
+fn test_build_unwatch_user() {
+    let message = MessageFactory::build_unwatch_user("bob");
+    let expect: Vec<u8> = [6, 0, 0, 0, 3, 0, 0, 0, b'b', b'o', b'b'].to_vec();
+    assert_eq!(expect, message.get_data());
+}

soulseek-rs-lib/src/message/server/mod.rs

@@ -16,6 +16,7 @@ mod say_chatroom;
 mod user_info;
 mod user_joined_room;
 mod user_left_room;
+mod watch_user;
 mod wish_list_interval;
 
 pub use connect_to_peer::ConnectToPeerHandler;
@@ -36,4 +37,5 @@ pub use say_chatroom::SayChatroomHandler;
 pub use user_info::{GetUserStatsHandler, GetUserStatusHandler};
 pub use user_joined_room::UserJoinedRoomHandler;
 pub use user_left_room::UserLeftRoomHandler;
+pub use watch_user::WatchUserHandler;
 pub use wish_list_interval::WishListIntervalHandler;

soulseek-rs-lib/src/message/server/watch_user.rs

@@ -0,0 +1,146 @@
+//! `WatchUser` (code 5): subscribe to a user's status and share statistics.
+//!
+//! Watching is how a client keeps a buddy list current. After a `WatchUser`
+//! request the server answers on the same code with the user's current
+//! presence and stats, and from then on pushes every later change as an
+//! ordinary `GetUserStatus` (code 7). `UnwatchUser` (code 6) cancels the
+//! subscription and has no reply.
+//!
+//! Note on codes: the protocol has no `AddUserList`/`WatchedUserAdded`
+//! /`WatchedUserRemoved` messages — 141/142/143 are `EnableRoomInvitations`,
+//! `ChangePassword` and `AddRoomOperator`. Watching is 5/6, per the reference
+//! protocol documentation.
+
+use crate::actor::server_actor::ServerMessage;
+use crate::message::{Message, MessageHandler};
+use std::sync::mpsc::Sender;
+
+/// Receives the `WatchUser` reply (code 5): `username`, `exists`, and — when
+/// the user exists — status plus the same share statistics `GetUserStats`
+/// carries.
+pub struct WatchUserHandler;
+
+impl MessageHandler<ServerMessage> for WatchUserHandler {
+    fn get_code(&self) -> u8 {
+        5
+    }
+
+    fn handle(&self, message: &mut Message, sender: Sender<ServerMessage>) {
+        let username = message.read_string();
+        let exists = message.read_bool();
+        let watched = if exists {
+            let status = message.read_int32();
+            let average_speed = message.read_int32();
+            // Two obsolete 32-bit fields, exactly as GetUserStats (36)
+            // carries them -- not one 64-bit value. The byte count is the
+            // same either way, but reading them as the server writes them
+            // keeps this handler and its sibling honest.
+            let _upload_number = message.read_int32(); // obsolete, always 0
+            let _unknown = message.read_int32(); // obsolete, always 0
+            let shared_files = message.read_int32();
+            let shared_folders = message.read_int32();
+            ServerMessage::WatchedUserReceived {
+                username,
+                exists,
+                status: Some(status),
+                average_speed: Some(average_speed),
+                shared_files: Some(shared_files),
+                shared_folders: Some(shared_folders),
+            }
+        } else {
+            // An unknown username: the server stops after the flag, so there
+            // is nothing further to read and nothing to record.
+            ServerMessage::WatchedUserReceived {
+                username,
+                exists,
+                status: None,
+                average_speed: None,
+                shared_files: None,
+                shared_folders: None,
+            }
+        };
+        let _ = sender.send(watched);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::message::framed;
+
+    #[test]
+    fn existing_user_carries_status_and_stats() {
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = framed(|m| {
+            m.write_string("alice")
+                .write_int8(1) // exists
+                .write_int32(2) // status: online
+                .write_int32(1024) // average speed
+                .write_int32(0) // obsolete upload number
+                .write_int32(0) // obsolete unknown
+                .write_int32(4321) // shared files
+                .write_int32(77); // shared folders
+        });
+
+        WatchUserHandler.handle(&mut message, tx);
+        match rx.try_recv() {
+            Ok(ServerMessage::WatchedUserReceived {
+                username,
+                exists,
+                status,
+                average_speed,
+                shared_files,
+                shared_folders,
+            }) => {
+                assert_eq!(username, "alice");
+                assert!(exists);
+                assert_eq!(status, Some(2));
+                assert_eq!(average_speed, Some(1024));
+                assert_eq!(shared_files, Some(4321));
+                assert_eq!(shared_folders, Some(77));
+            }
+            other => panic!("unexpected: {other:?}"),
+        }
+    }
+
+    #[test]
+    fn unknown_user_reports_absence_without_stats() {
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = framed(|m| {
+            m.write_string("ghost").write_int8(0);
+        });
+
+        WatchUserHandler.handle(&mut message, tx);
+        match rx.try_recv() {
+            Ok(ServerMessage::WatchedUserReceived {
+                username,
+                exists,
+                status,
+                shared_files,
+                ..
+            }) => {
+                assert_eq!(username, "ghost");
+                assert!(!exists);
+                assert_eq!(status, None);
+                assert_eq!(shared_files, None);
+            }
+            other => panic!("unexpected: {other:?}"),
+        }
+    }
+
+    #[test]
+    fn truncated_payload_does_not_panic() {
+        // exists = 1 but the stats were cut off: the bounds-checked readers
+        // must yield zeros rather than panicking on a hostile frame.
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = framed(|m| {
+            m.write_string("alice").write_int8(1).write_int32(2);
+        });
+
+        WatchUserHandler.handle(&mut message, tx);
+        assert!(matches!(
+            rx.try_recv(),
+            Ok(ServerMessage::WatchedUserReceived { .. })
+        ));
+    }
+}

soulseek-rs-lib/src/types.rs

@@ -328,6 +328,27 @@ impl UserInfo {
     }
 }
 
+/// What the server reports about one member of a room we joined, from the
+/// per-member stat vectors of a `JoinRoom` (code 14) reply.
+///
+/// A server may send shorter stat vectors than the membership list (older
+/// servers omit country codes entirely), so absent fields read as zero and an
+/// unreported country is `None` rather than an empty string.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct RoomUserStats {
+    pub username: String,
+    pub status: UserStatus,
+    pub average_speed: u32,
+    pub shared_files: u32,
+    pub shared_folders: u32,
+    /// True when the member's upload slots are all occupied, so a download
+    /// from them will queue. The wire field is `slotsfull`, a boolean — not a
+    /// count, and not a count of *free* slots.
+    pub slots_full: bool,
+    /// Two-letter country code, when the server reports one.
+    pub country: Option<String>,
+}
+
 /// A public chat room advertised by the server (`RoomList`, code 64).
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct RoomInfo {

soulseek-rs-lib/tests/e2e.rs

@@ -2622,3 +2622,182 @@ fn a_peer_that_hangs_up_its_control_connection_still_delivers_the_file() {
 
     let _ = std::fs::remove_dir_all(&download_dir);
 }
+
+#[test]
+fn a_joined_room_reports_its_members_statistics() {
+    let server = server_or_skip!();
+
+    let room = "e2e_room_stats";
+
+    // A member with a known share, so the statistics are checkable rather
+    // than merely present.
+    let share_dir = unique_download_dir().join("stats_share");
+    std::fs::create_dir_all(share_dir.join("album")).unwrap();
+    for name in ["one.flac", "two.flac", "three.flac"] {
+        std::fs::write(share_dir.join("album").join(name), b"xxxx").unwrap();
+    }
+    let mut sharer = Client::with_settings(ClientSettings {
+        shared_directories: vec![share_dir.display().to_string()],
+        ..server.settings("e2e_stats_sharer", "pw")
+    });
+    sharer.connect().expect("sharer connect");
+    assert!(sharer.login().expect("sharer login"));
+    sharer.join_room(room).expect("sharer joins room");
+
+    // Let the server register the sharer's membership and share counts, so
+    // the observer's own join reply describes a room that already has them.
+    std::thread::sleep(Duration::from_millis(750));
+
+    let mut observer =
+        Client::with_settings(server.settings("e2e_stats_observer", "pw"));
+    observer.connect().expect("observer connect");
+    assert!(observer.login().expect("observer login"));
+    observer.join_room(room).expect("observer joins room");
+
+    // The stats ride along with the membership list, so poll for the member
+    // rather than for a fixed delay.
+    let deadline = Instant::now() + Duration::from_secs(15);
+    let mut sharer_stats = None;
+    while Instant::now() < deadline {
+        if let Some(found) = observer
+            .room_member_stats(room)
+            .into_iter()
+            .find(|s| s.username == "e2e_stats_sharer")
+        {
+            sharer_stats = Some(found);
+            break;
+        }
+        std::thread::sleep(Duration::from_millis(100));
+    }
+    let stats =
+        sharer_stats.expect("the join reply should describe the members");
+
+    assert!(
+        stats.status.is_reachable(),
+        "a member who is in the room cannot read as offline, got {}",
+        stats.status
+    );
+    assert_eq!(
+        stats.shared_files, 3,
+        "the member's file count must survive the parallel stat vectors"
+    );
+    assert_eq!(stats.shared_folders, 1);
+    assert!(
+        !stats.slots_full,
+        "a client that never filled its slots must not read as full"
+    );
+
+    // Every member is described, not just the one we looked up: a short or
+    // misread vector would drop or shift the rest.
+    let members = observer.room_member_stats(room);
+    let names: Vec<&str> =
+        members.iter().map(|s| s.username.as_str()).collect();
+    assert!(
+        names.contains(&"e2e_stats_sharer")
+            && names.contains(&"e2e_stats_observer"),
+        "both members should be described, got {names:?}"
+    );
+    assert_eq!(
+        members.len(),
+        observer.room_members(room).len(),
+        "the stats must line up one-to-one with the roster"
+    );
+}
+
+#[test]
+fn watching_a_user_returns_their_status_and_share_counts() {
+    let server = server_or_skip!();
+
+    // A subject with a known share, so the watch reply's statistics are
+    // checkable rather than merely present.
+    let share_dir = unique_download_dir().join("watch_share");
+    std::fs::create_dir_all(share_dir.join("album")).unwrap();
+    for name in ["one.flac", "two.flac"] {
+        std::fs::write(share_dir.join("album").join(name), b"xxxx").unwrap();
+    }
+    let mut subject = Client::with_settings(ClientSettings {
+        shared_directories: vec![share_dir.display().to_string()],
+        ..server.settings("e2e_watch_subject", "pw")
+    });
+    subject.connect().expect("subject connect");
+    assert!(subject.login().expect("subject login"));
+
+    let mut watcher =
+        Client::with_settings(server.settings("e2e_watch_watcher", "pw"));
+    watcher.connect().expect("watcher connect");
+    assert!(watcher.login().expect("watcher login"));
+
+    // Let the subject's share counts reach the server before watching, so
+    // the reply describes a user it already knows the statistics for.
+    std::thread::sleep(Duration::from_millis(750));
+
+    watcher
+        .watch_user("e2e_watch_subject")
+        .expect("watch the subject");
+    assert_eq!(
+        watcher.watched_users(),
+        vec!["e2e_watch_subject".to_string()]
+    );
+
+    // One reply carries both halves, unlike the two GetUserStatus and
+    // GetUserStats answers request_user_info waits on.
+    let deadline = Instant::now() + Duration::from_secs(15);
+    let mut info = None;
+    while Instant::now() < deadline {
+        match watcher.user_info("e2e_watch_subject") {
+            Some(found) if found.is_complete() => {
+                info = Some(found);
+                break;
+            }
+            _ => std::thread::sleep(Duration::from_millis(100)),
+        }
+    }
+    let info = info.expect("the watch reply should carry status and stats");
+
+    let presence = info.presence.expect("presence should have arrived");
+    assert!(
+        presence.status.is_reachable(),
+        "a logged-in user should not read as offline, got {}",
+        presence.status
+    );
+    let stats = info.stats.expect("stats should have arrived");
+    assert_eq!(
+        stats.shared_files, 2,
+        "the file count must survive the obsolete fields ahead of it"
+    );
+    assert_eq!(stats.shared_folders, 1);
+
+    // Unwatching drops the user and what we knew about them, so a later
+    // re-watch reports a fresh answer rather than this stale one.
+    watcher
+        .unwatch_user("e2e_watch_subject")
+        .expect("unwatch the subject");
+    assert!(watcher.watched_users().is_empty());
+    assert!(watcher.user_info("e2e_watch_subject").is_none());
+}
+
+#[test]
+fn watching_a_user_the_server_does_not_know_reports_their_absence() {
+    let server = server_or_skip!();
+
+    let mut watcher =
+        Client::with_settings(server.settings("e2e_watch_ghost_asker", "pw"));
+    watcher.connect().expect("watcher connect");
+    assert!(watcher.login().expect("watcher login"));
+
+    watcher
+        .watch_user("e2e_watch_nobody_here")
+        .expect("watch an unknown user");
+
+    // The server answers that it has no such user; the watch is dropped
+    // rather than left showing a permanently blank row.
+    let deadline = Instant::now() + Duration::from_secs(10);
+    while Instant::now() < deadline && !watcher.watched_users().is_empty() {
+        std::thread::sleep(Duration::from_millis(100));
+    }
+    assert!(
+        watcher.watched_users().is_empty(),
+        "a username the server does not know must not stay watched"
+    );
+    assert!(watcher.user_info("e2e_watch_nobody_here").is_none());
+}

soulseek-rs/docs/openrpc.json

@@ -525,6 +525,21 @@
         ],
         "type": "object"
       },
+      "MemberStats": {
+        "description": "What the server said about each member of a room when it was joined.",
+        "properties": {
+          "members": {
+            "items": {
+              "$ref": "#/components/schemas/RoomUserStatsDto"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "members"
+        ],
+        "type": "object"
+      },
       "Members": {
         "properties": {
           "users": {
@@ -733,6 +748,52 @@
         ],
         "type": "object"
       },
+      "RoomUserStatsDto": {
+        "description": "One member of a room, as the JoinRoom reply described them.",
+        "properties": {
+          "average_speed": {
+            "format": "uint32",
+            "minimum": 0,
+            "type": "integer"
+          },
+          "country": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "shared_files": {
+            "format": "uint32",
+            "minimum": 0,
+            "type": "integer"
+          },
+          "shared_folders": {
+            "format": "uint32",
+            "minimum": 0,
+            "type": "integer"
+          },
+          "slots_full": {
+            "description": "True when the member's upload slots are all occupied.",
+            "type": "boolean"
+          },
+          "status": {
+            "description": "`online`, `away`, or `offline`.",
+            "type": "string"
+          },
+          "username": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "username",
+          "status",
+          "average_speed",
+          "shared_files",
+          "shared_folders",
+          "slots_full"
+        ],
+        "type": "object"
+      },
       "SayParams": {
         "properties": {
           "message": {
@@ -1216,6 +1277,21 @@
           "shared_folders"
         ],
         "type": "object"
+      },
+      "Watched": {
+        "description": "Everyone this session is watching, sorted by name.",
+        "properties": {
+          "users": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "users"
+        ],
+        "type": "object"
       }
     }
   },
@@ -1776,6 +1852,26 @@
       },
       "summary": "Who is currently in a room."
     },
+    {
+      "name": "room.member_stats",
+      "paramStructure": "by-name",
+      "params": [
+        {
+          "name": "room",
+          "required": true,
+          "schema": {
+            "type": "string"
+          }
+        }
+      ],
+      "result": {
+        "name": "result",
+        "schema": {
+          "$ref": "#/components/schemas/MemberStats"
+        }
+      },
+      "summary": "What the server said about each member of a joined room."
+    },
     {
       "name": "message.send",
       "paramStructure": "by-name",
@@ -1875,6 +1971,58 @@
       },
       "summary": "What the server has said about a user so far."
     },
+    {
+      "name": "user.watch",
+      "paramStructure": "by-name",
+      "params": [
+        {
+          "name": "username",
+          "required": true,
+          "schema": {
+            "type": "string"
+          }
+        }
+      ],
+      "result": {
+        "name": "result",
+        "schema": {
+          "$ref": "#/components/schemas/Ack"
+        }
+      },
+      "summary": "Watch a user, so the server keeps pushing their status."
+    },
+    {
+      "name": "user.unwatch",
+      "paramStructure": "by-name",
+      "params": [
+        {
+          "name": "username",
+          "required": true,
+          "schema": {
+            "type": "string"
+          }
+        }
+      ],
+      "result": {
+        "name": "result",
+        "schema": {
+          "$ref": "#/components/schemas/Ack"
+        }
+      },
+      "summary": "Stop watching a user."
+    },
+    {
+      "name": "user.watched",
+      "paramStructure": "by-name",
+      "params": [],
+      "result": {
+        "name": "result",
+        "schema": {
+          "$ref": "#/components/schemas/Watched"
+        }
+      },
+      "summary": "Everyone this session is watching."
+    },
     {
       "name": "shares.status",
       "paramStructure": "by-name",

soulseek-rs/src/SKILL.md

@@ -133,6 +133,13 @@ wishlist later rather than repeating the same search.
 be `null` when the server has not answered that half — `null` means unknown,
 not offline.
 
+**`watch add <user>`** / **`watch remove <user>`** — prints nothing; exit 0 is
+the confirmation. **`watch list`** — one object per watched user: `user`,
+`status`. A watch lasts only as long as the session holding it, so these are
+worth using against a running daemon (`--daemon`), where the connection stays
+up and keeps receiving the server's status pushes. A one-shot run's watch ends
+with the run.
+
 **`whoami`** — one object: `user`, `server`, `listening`, `listen_port`,
 `shared_folders`, `shared_files`, `download_dir`, `privilege_seconds`. The
 cheapest way to prove the credentials and connection work.
@@ -140,7 +147,11 @@ cheapest way to prove the credentials and connection work.
 server did not answer — those are different facts, so do not treat null as 0.
 
 **`room list`** — `room`, `users`.
-**`room users <room>`** — `room`, `user`.
+**`room users <room>`** — `room`, `user`, `status`, `average_speed`,
+`shared_files`, `shared_folders`, `slots_full`, `country`. Everything but
+`room` and `user` is `null` when the server sent no statistics for that
+member — `null` means unknown, not zero. `slots_full` is true when the peer's
+upload slots are all occupied, so a download from them will queue.
 **`room listen <room>`** — streams `type`, `room`, `user`, `message`.
 **`room say <room> <message>`** — prints nothing; exit 0 is the confirmation.
 

soulseek-rs/src/api.rs

@@ -13,7 +13,7 @@
 //! remote session has no borrowed client to hand a `&str` out of.
 
 use crate::daemon::proto::ChatMessageDto;
-use soulseek_rs::types::{Download, DownloadMetadata};
+use soulseek_rs::types::{Download, DownloadMetadata, RoomUserStats};
 use soulseek_rs::{
     Client, DownloadStatus, Result, RoomEvent, SearchResult, SessionLoss,
     SharedDirectory, UploadInfo, UserInfo, UserMessage,
@@ -126,6 +126,9 @@ pub trait SessionApi: Send + Sync {
     fn leave_room(&self, room: &str) -> Result<()>;
     fn say_in_room(&self, room: &str, message: &str) -> Result<()>;
     fn room_members(&self, room: &str) -> Vec<String>;
+    /// What the server said about each member when the room was joined:
+    /// status, share statistics, free upload slots and country.
+    fn room_member_stats(&self, room: &str) -> Vec<RoomUserStats>;
     fn take_room_events(&self) -> Vec<RoomEvent>;
 
     fn send_private_message(&self, username: &str, message: &str)
@@ -140,6 +143,12 @@ pub trait SessionApi: Send + Sync {
     fn request_user_info(&self, username: &str) -> Result<()>;
     fn user_info(&self, username: &str) -> Option<UserInfo>;
 
+    /// Ask the server to keep pushing `username`'s status until unwatched.
+    fn watch_user(&self, username: &str) -> Result<()>;
+    fn unwatch_user(&self, username: &str) -> Result<()>;
+    /// Everyone this session is watching, sorted by name.
+    fn watched_users(&self) -> Vec<String>;
+
     /// The conversation this session already knows about.
     ///
     /// Empty locally, where the TUI's own snapshot on disk is the record. A
@@ -329,6 +338,10 @@ impl SessionApi for Client {
         Self::room_members(self, room)
     }
 
+    fn room_member_stats(&self, room: &str) -> Vec<RoomUserStats> {
+        Self::room_member_stats(self, room)
+    }
+
     fn take_room_events(&self) -> Vec<RoomEvent> {
         Self::take_room_events(self)
     }
@@ -364,6 +377,18 @@ impl SessionApi for Client {
         Self::user_info(self, username)
     }
 
+    fn watch_user(&self, username: &str) -> Result<()> {
+        Self::watch_user(self, username)
+    }
+
+    fn unwatch_user(&self, username: &str) -> Result<()> {
+        Self::unwatch_user(self, username)
+    }
+
+    fn watched_users(&self) -> Vec<String> {
+        Self::watched_users(self)
+    }
+
     fn shared_counts(&self) -> (u32, u32) {
         Self::shared_counts(self)
     }

soulseek-rs/src/cli.rs

@@ -207,6 +207,10 @@ pub enum Commands {
     /// What the server knows about another user
     User(UserArgs),
 
+    /// Keep a daemon updated about users you care about
+    #[command(subcommand)]
+    Watch(WatchCommand),
+
     /// Confirm the credentials and connection work
     Whoami,
 
@@ -571,6 +575,26 @@ pub struct WishRunArgs {
     pub sort: SortKey,
 }
 
+/// Watching only lasts as long as the session doing it, so these are aimed at
+/// a running daemon: it stays connected and keeps receiving the status pushes.
+#[derive(Subcommand, Debug)]
+pub enum WatchCommand {
+    /// Start watching a user
+    Add {
+        /// The user to watch
+        user: String,
+    },
+
+    /// Stop watching a user
+    Remove {
+        /// The user to stop watching
+        user: String,
+    },
+
+    /// List the users being watched
+    List,
+}
+
 #[derive(Subcommand, Debug)]
 pub enum RoomCommand {
     /// List public rooms and their user counts

soulseek-rs/src/commands/mod.rs

@@ -309,6 +309,7 @@ fn dispatch(ctx: &Ctx, command: Commands) -> CliResult {
             social::message_read(ctx, listen_span(duration, follow))
         }
         Commands::User(args) => peer::user(ctx, &args),
+        Commands::Watch(command) => peer::watch(ctx, &command),
         Commands::Whoami => peer::whoami(ctx),
         // main.rs runs these itself: some need no account, the rest need the
         // config store in scope. The arms only keep the match exhaustive.

soulseek-rs/src/commands/peer.rs

@@ -1,9 +1,10 @@
 //! Being a peer on the network: `serve`, `whoami`, and `user`.
 
 use super::{Ctx, Session};
-use crate::cli::{ServeArgs, UserArgs};
+use crate::cli::{ServeArgs, UserArgs, WatchCommand};
 use crate::output::{
-    CliError, CliResult, UploadRecord, UserRecord, WhoamiRecord,
+    CliError, CliResult, UploadRecord, UserRecord, WatchedUserRecord,
+    WhoamiRecord,
 };
 use soulseek_rs::types::{UploadInfo, UploadStatus, UserInfo};
 use std::collections::HashMap;
@@ -94,6 +95,40 @@ pub fn user(ctx: &Ctx, args: &UserArgs) -> CliResult {
     Ok(())
 }
 
+/// Start or stop watching a user, or list who is being watched.
+///
+/// A watch lives in the session that made it, so `add` against a one-shot CLI
+/// run ends with that run. Pointed at a daemon it persists for that daemon's
+/// lifetime, which is the point of the command.
+pub fn watch(ctx: &Ctx, command: &WatchCommand) -> CliResult {
+    let session = Session::open(ctx)?;
+    match command {
+        WatchCommand::Add { user } => {
+            session.client.watch_user(user).map_err(|e| {
+                CliError::connection(format!("cannot watch {user}: {e}"))
+            })?;
+            ctx.out.status(&format!("watching {user}"));
+        }
+        WatchCommand::Remove { user } => {
+            session.client.unwatch_user(user).map_err(|e| {
+                CliError::connection(format!("cannot unwatch {user}: {e}"))
+            })?;
+            ctx.out.status(&format!("no longer watching {user}"));
+        }
+        WatchCommand::List => {
+            for user in session.client.watched_users() {
+                let status = session
+                    .client
+                    .user_info(&user)
+                    .and_then(|info| info.presence)
+                    .map(|p| p.status.to_string());
+                ctx.out.emit(&WatchedUserRecord { user, status });
+            }
+        }
+    }
+    Ok(())
+}
+
 /// Stay online sharing files, and — with `--wishlist` — re-run the standing
 /// searches on the interval the server sets while doing so.
 pub fn serve(

soulseek-rs/src/commands/social.rs

@@ -151,10 +151,21 @@ pub fn room_users(ctx: &Ctx, room: &str, timeout: Duration) -> CliResult {
             timeout.as_secs()
         )));
     };
+    // The stats ride along with the membership the server sent, so they are
+    // already here; a server that sent none leaves every field null rather
+    // than reporting a zero that reads like an answer.
+    let stats = session.client.room_member_stats(room);
     for user in members {
+        let stat = stats.iter().find(|s| s.username == user);
         ctx.out.emit(&RoomMemberRecord {
             room: room.to_string(),
             user,
+            status: stat.map(|s| s.status.to_string()),
+            average_speed: stat.map(|s| s.average_speed),
+            shared_files: stat.map(|s| s.shared_files),
+            shared_folders: stat.map(|s| s.shared_folders),
+            slots_full: stat.map(|s| s.slots_full),
+            country: stat.and_then(|s| s.country.clone()),
         });
     }
     Ok(())

soulseek-rs/src/daemon/openrpc.rs

@@ -11,10 +11,11 @@
 use super::proto::{
     Ack, AuthParams, AuthResult, BrowseEvent, DaemonStatus, DirectoriesParams,
     DirectoryParams, DownloadStartParams, DownloadStarted, DownloadStatusEvent,
-    Downloads, Event, IntervalSeconds, Members, MessageParams, Messages,
+    Downloads, Event, IntervalSeconds, MemberStats, Members, MessageParams,
-    Method, QueryParams, RoomEventDto, RoomRef, SayParams, SearchResults,
+    Messages, Method, QueryParams, RoomEventDto, RoomRef, SayParams,
-    Searches, Seconds, SessionLossEvent, SharesStatus, SlotsParams,
+    SearchResults, Searches, Seconds, SessionLossEvent, SharesStatus,
-    TransferRef, UploadInfoDto, Uploads, UserMessageDto, UserRef, UserResult,
+    SlotsParams, TransferRef, UploadInfoDto, Uploads, UserMessageDto, UserRef,
+    UserResult, Watched,
 };
 use schemars::{JsonSchema, SchemaGenerator, generate::SchemaSettings};
 use serde_json::{Value, json};
@@ -46,14 +47,17 @@ fn params_schema(method: Method, generator: &mut SchemaGenerator) -> Value {
         | Method::UploadCancel => schema_of::<TransferRef>(generator),
         Method::DownloadSetDir => schema_of::<DirectoryParams>(generator),
         Method::UploadSlots => schema_of::<SlotsParams>(generator),
-        Method::RoomJoin | Method::RoomLeave | Method::RoomMembers => {
+        Method::RoomJoin
-            schema_of::<RoomRef>(generator)
+        | Method::RoomLeave
-        }
+        | Method::RoomMembers
+        | Method::RoomMemberStats => schema_of::<RoomRef>(generator),
         Method::RoomSay => schema_of::<SayParams>(generator),
         Method::MessageSend => schema_of::<MessageParams>(generator),
-        Method::BrowseUser | Method::UserRequest | Method::UserInfoOf => {
+        Method::BrowseUser
-            schema_of::<UserRef>(generator)
+        | Method::UserRequest
-        }
+        | Method::UserInfoOf
+        | Method::UserWatch
+        | Method::UserUnwatch => schema_of::<UserRef>(generator),
         Method::SharesSet => schema_of::<DirectoriesParams>(generator),
         // Methods that take no parameters.
         Method::DaemonStatus
@@ -68,7 +72,8 @@ fn params_schema(method: Method, generator: &mut SchemaGenerator) -> Value {
         | Method::MessageHistory
         | Method::SearchList
         | Method::SharesStatusOf
-        | Method::SharesReindex => json!({ "type": "null" }),
+        | Method::SharesReindex
+        | Method::UserWatched => json!({ "type": "null" }),
     }
 }
 
@@ -88,6 +93,8 @@ fn result_schema(method: Method, generator: &mut SchemaGenerator) -> Value {
         Method::UploadList => schema_of::<Uploads>(generator),
         Method::PrivilegesOwn => schema_of::<Seconds>(generator),
         Method::RoomMembers => schema_of::<Members>(generator),
+        Method::RoomMemberStats => schema_of::<MemberStats>(generator),
+        Method::UserWatched => schema_of::<Watched>(generator),
         Method::MessageHistory => schema_of::<Messages>(generator),
         Method::UserInfoOf => schema_of::<UserResult>(generator),
         Method::SharesStatusOf | Method::SharesSet | Method::SharesReindex => {
@@ -112,7 +119,9 @@ fn result_schema(method: Method, generator: &mut SchemaGenerator) -> Value {
         | Method::MessageSend
         | Method::BrowseUser
         | Method::SearchForget
-        | Method::UserRequest => schema_of::<Ack>(generator),
+        | Method::UserRequest
+        | Method::UserWatch
+        | Method::UserUnwatch => schema_of::<Ack>(generator),
     }
 }
 
@@ -172,6 +181,14 @@ fn summary(method: Method) -> &'static str {
         Method::RoomLeave => "Leave a chat room.",
         Method::RoomSay => "Post a message to a room.",
         Method::RoomMembers => "Who is currently in a room.",
+        Method::RoomMemberStats => {
+            "What the server said about each member of a joined room."
+        }
+        Method::UserWatch => {
+            "Watch a user, so the server keeps pushing their status."
+        }
+        Method::UserUnwatch => "Stop watching a user.",
+        Method::UserWatched => "Everyone this session is watching.",
         Method::MessageSend => "Send a private message.",
         Method::MessageHistory => {
             "Private messages the daemon collected, including while nobody was attached."

soulseek-rs/src/daemon/proto/dto.rs

@@ -7,7 +7,8 @@
 
 use serde::{Deserialize, Serialize};
 use soulseek_rs::types::{
-    Download, DownloadMetadata, UserPresence, UserStats, UserStatus,
+    Download, DownloadMetadata, RoomUserStats, UserPresence, UserStats,
+    UserStatus,
 };
 use soulseek_rs::{
     DownloadStatus, File, RoomEvent, RoomInfo, SearchResult, SessionLoss,
@@ -447,6 +448,59 @@ pub struct UserStatsDto {
     pub shared_folders: u32,
 }
 
+/// The inverse of [`UserStatus`]'s `Display`. An unrecognised word reads as
+/// offline, matching how the wire code is decoded.
+fn status_from_str(status: &str) -> UserStatus {
+    match status {
+        "online" => UserStatus::Online,
+        "away" => UserStatus::Away,
+        _ => UserStatus::Offline,
+    }
+}
+
+/// One member of a room, as the JoinRoom reply described them.
+#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
+#[cfg_attr(test, derive(schemars::JsonSchema))]
+pub struct RoomUserStatsDto {
+    pub username: String,
+    /// `online`, `away`, or `offline`.
+    pub status: String,
+    pub average_speed: u32,
+    pub shared_files: u32,
+    pub shared_folders: u32,
+    /// True when the member's upload slots are all occupied.
+    pub slots_full: bool,
+    pub country: Option<String>,
+}
+
+impl From<&RoomUserStats> for RoomUserStatsDto {
+    fn from(stats: &RoomUserStats) -> Self {
+        Self {
+            username: stats.username.clone(),
+            status: stats.status.to_string(),
+            average_speed: stats.average_speed,
+            shared_files: stats.shared_files,
+            shared_folders: stats.shared_folders,
+            slots_full: stats.slots_full,
+            country: stats.country.clone(),
+        }
+    }
+}
+
+impl From<RoomUserStatsDto> for RoomUserStats {
+    fn from(dto: RoomUserStatsDto) -> Self {
+        Self {
+            username: dto.username,
+            status: status_from_str(&dto.status),
+            average_speed: dto.average_speed,
+            shared_files: dto.shared_files,
+            shared_folders: dto.shared_folders,
+            slots_full: dto.slots_full,
+            country: dto.country,
+        }
+    }
+}
+
 /// Each half is `None` until its reply lands, so a consumer can tell "the
 /// server said offline" from "the server has not answered yet".
 #[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
@@ -480,11 +534,7 @@ impl From<UserInfoDto> for UserInfo {
     fn from(dto: UserInfoDto) -> Self {
         let mut info = Self::pending(dto.username);
         info.presence = dto.presence.map(|presence| UserPresence {
-            status: match presence.status.as_str() {
+            status: status_from_str(&presence.status),
-                "online" => UserStatus::Online,
-                "away" => UserStatus::Away,
-                _ => UserStatus::Offline,
-            },
             privileged: presence.privileged,
         });
         info.stats = dto.stats.map(|stats| UserStats {

soulseek-rs/src/daemon/proto/method.rs

@@ -1,5 +1,6 @@
 //! What each method takes and returns, and what each pushed event carries.
 
+use super::dto::RoomUserStatsDto;
 use super::dto::{
     DownloadDto, DownloadMetadataDto, DownloadStatusDto, SearchResultDto,
     SessionLossDto, SharedDirectoryDto, UploadInfoDto, UserInfoDto,
@@ -139,6 +140,20 @@ pub struct Members {
     pub users: Vec<String>,
 }
 
+/// What the server said about each member of a room when it was joined.
+#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
+#[cfg_attr(test, derive(schemars::JsonSchema))]
+pub struct MemberStats {
+    pub members: Vec<RoomUserStatsDto>,
+}
+
+/// Everyone this session is watching, sorted by name.
+#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
+#[cfg_attr(test, derive(schemars::JsonSchema))]
+pub struct Watched {
+    pub users: Vec<String>,
+}
+
 /// One line of chat history. Unlike a live [`UserMessageDto`] this carries a
 /// direction, because a conversation the daemon collected includes what this
 /// account sent as well as what it received.

soulseek-rs/src/daemon/proto/mod.rs

@@ -101,11 +101,15 @@ wire_vocabulary! {
         RoomLeave => "room.leave",
         RoomSay => "room.say",
         RoomMembers => "room.members",
+        RoomMemberStats => "room.member_stats",
         MessageSend => "message.send",
         MessageHistory => "message.history",
         BrowseUser => "browse.user",
         UserRequest => "user.request",
         UserInfoOf => "user.info",
+        UserWatch => "user.watch",
+        UserUnwatch => "user.unwatch",
+        UserWatched => "user.watched",
         SharesStatusOf => "shares.status",
         SharesSet => "shares.set",
         SharesReindex => "shares.reindex",

soulseek-rs/src/daemon/server/mod.rs

@@ -9,11 +9,12 @@ use super::hub::{Hub, PendingBrowses, PendingDownload};
 use super::proto::{
     Ack, AuthResult, CODE_APPLICATION, CODE_INVALID_PARAMS, ChatMessageDto,
     DaemonStatus, DirectoriesParams, DirectoryParams, DownloadDto,
-    DownloadStartParams, DownloadStarted, Downloads, IntervalSeconds, Members,
+    DownloadStartParams, DownloadStarted, Downloads, IntervalSeconds,
-    MessageParams, Messages, Method, OPENRPC, PROTOCOL_VERSION, QueryParams,
+    MemberStats, Members, MessageParams, Messages, Method, OPENRPC,
-    RoomRef, RpcError, SayParams, SearchResultDto, SearchResults,
+    PROTOCOL_VERSION, QueryParams, RoomRef, RoomUserStatsDto, RpcError,
-    SearchSummary, Searches, Seconds, SharesStatus, SlotsParams, TransferRef,
+    SayParams, SearchResultDto, SearchResults, SearchSummary, Searches,
-    UploadInfoDto, Uploads, UserInfoDto, UserRef, UserResult,
+    Seconds, SharesStatus, SlotsParams, TransferRef, UploadInfoDto, Uploads,
+    UserInfoDto, UserRef, UserResult, Watched,
 };
 use crate::api::SessionApi;
 use crate::output::Exit;
@@ -252,6 +253,18 @@ impl Daemon {
                 })
             }
 
+            Method::RoomMemberStats => {
+                let room: RoomRef = parse(params)?;
+                ok(MemberStats {
+                    members: self
+                        .session
+                        .room_member_stats(&room.room)
+                        .iter()
+                        .map(RoomUserStatsDto::from)
+                        .collect(),
+                })
+            }
+
             Method::MessageSend => {
                 let message: MessageParams = parse(params)?;
                 self.session
@@ -306,6 +319,24 @@ impl Daemon {
                 })
             }
 
+            Method::UserWatch => {
+                let user: UserRef = parse(params)?;
+                self.session.watch_user(&user.username).map_err(|e| {
+                    RpcError::application(Exit::Connection, e.to_string())
+                })?;
+                ok(Ack::OK)
+            }
+            Method::UserUnwatch => {
+                let user: UserRef = parse(params)?;
+                self.session.unwatch_user(&user.username).map_err(|e| {
+                    RpcError::application(Exit::Connection, e.to_string())
+                })?;
+                ok(Ack::OK)
+            }
+            Method::UserWatched => ok(Watched {
+                users: self.session.watched_users(),
+            }),
+
             Method::SharesStatusOf => ok(self.shares()),
             Method::SharesSet => {
                 let directories: DirectoriesParams = parse(params)?;
@@ -593,6 +624,72 @@ mod tests {
         );
     }
 
+    #[test]
+    fn member_stats_are_published_for_a_joined_room() {
+        let daemon = daemon_with_token("t");
+        let stats = daemon
+            .call(Method::RoomMemberStats, json!({ "room": STUB_ROOM }))
+            .expect("member stats");
+        assert_eq!(stats["members"][0]["username"], "alice");
+        assert_eq!(stats["members"][0]["status"], "online");
+        assert_eq!(stats["members"][0]["slots_full"], true);
+        assert_eq!(stats["members"][0]["country"], "NL");
+    }
+
+    #[test]
+    fn a_room_that_was_never_joined_has_no_member_stats() {
+        // Empty, not an error: asking about a room this session is not in is
+        // an ordinary thing for a client to do.
+        let daemon = daemon_with_token("t");
+        let stats = daemon
+            .call(Method::RoomMemberStats, json!({ "room": "elsewhere" }))
+            .expect("member stats");
+        assert_eq!(stats["members"], json!([]));
+    }
+
+    #[test]
+    fn a_watch_is_readable_back_and_survives_until_unwatched() {
+        // The three methods are only useful together: what `user.watch`
+        // records, `user.watched` must report, and `user.unwatch` must undo.
+        let daemon = daemon_with_token("t");
+        let user = |name: &str| json!({ "username": name });
+
+        daemon
+            .call(Method::UserWatch, user("alice"))
+            .expect("watch");
+        daemon.call(Method::UserWatch, user("bob")).expect("watch");
+        let watched = daemon
+            .call(Method::UserWatched, Value::Null)
+            .expect("watched");
+        assert_eq!(watched["users"], json!(["alice", "bob"]));
+
+        daemon
+            .call(Method::UserUnwatch, user("alice"))
+            .expect("unwatch");
+        let watched = daemon
+            .call(Method::UserWatched, Value::Null)
+            .expect("watched");
+        assert_eq!(
+            watched["users"],
+            json!(["bob"]),
+            "unwatching one must not clear the rest"
+        );
+    }
+
+    #[test]
+    fn watching_the_same_user_twice_lists_them_once() {
+        let daemon = daemon_with_token("t");
+        let alice = json!({ "username": "alice" });
+        daemon
+            .call(Method::UserWatch, alice.clone())
+            .expect("watch");
+        daemon.call(Method::UserWatch, alice).expect("watch");
+        let watched = daemon
+            .call(Method::UserWatched, Value::Null)
+            .expect("watched");
+        assert_eq!(watched["users"], json!(["alice"]));
+    }
+
     #[test]
     fn stop_is_recorded_so_the_daemon_can_wind_down() {
         let daemon = daemon_with_token("t");
@@ -605,11 +702,22 @@ mod tests {
 
     // A session that answers nothing: enough to exercise dispatch, parameter
     // validation, and the auth gate without a Soulseek server.
-    struct SilentSession;
+    /// A session that answers nothing, with two exceptions the methods under
+    /// test need: it remembers watches, so what one call records the next can
+    /// read back, and it describes the members of one room, so the stats
+    /// method can return something for a joined room and nothing for any
+    /// other.
+    #[derive(Default)]
+    struct SilentSession {
+        watched: Mutex<Vec<String>>,
+    }
+
+    /// The one room `SilentSession` claims to have joined.
+    const STUB_ROOM: &str = "jazz";
 
     fn daemon_with_token(token: &str) -> Daemon {
         Daemon {
-            session: Arc::new(SilentSession),
+            session: Arc::new(SilentSession::default()),
             hub: Arc::new(Hub::new()),
             browses: Arc::new(PendingBrowses::default()),
             downloads: Arc::new(Mutex::new(Vec::new())),
@@ -764,6 +872,23 @@ mod tests {
         fn room_members(&self, _room: &str) -> Vec<String> {
             Vec::new()
         }
+        fn room_member_stats(
+            &self,
+            room: &str,
+        ) -> Vec<soulseek_rs::types::RoomUserStats> {
+            if room != STUB_ROOM {
+                return Vec::new();
+            }
+            vec![soulseek_rs::types::RoomUserStats {
+                username: "alice".to_string(),
+                status: soulseek_rs::types::UserStatus::Online,
+                average_speed: 1024,
+                shared_files: 20,
+                shared_folders: 3,
+                slots_full: true,
+                country: Some("NL".to_string()),
+            }]
+        }
         fn take_room_events(&self) -> Vec<soulseek_rs::RoomEvent> {
             Vec::new()
         }
@@ -792,6 +917,24 @@ mod tests {
         ) -> soulseek_rs::Result<()> {
             Ok(())
         }
+        fn watch_user(&self, username: &str) -> soulseek_rs::Result<()> {
+            let mut watched = self.watched.lock().expect("watch list");
+            if !watched.iter().any(|u| u == username) {
+                watched.push(username.to_string());
+                watched.sort();
+            }
+            Ok(())
+        }
+        fn unwatch_user(&self, username: &str) -> soulseek_rs::Result<()> {
+            self.watched
+                .lock()
+                .expect("watch list")
+                .retain(|u| u != username);
+            Ok(())
+        }
+        fn watched_users(&self) -> Vec<String> {
+            self.watched.lock().expect("watch list").clone()
+        }
         fn user_info(&self, _username: &str) -> Option<soulseek_rs::UserInfo> {
             None
         }

soulseek-rs/src/output.rs

@@ -370,19 +370,52 @@ impl Record for UserRecord {
     }
 }
 
-/// One member of a chat room.
+/// One member of a chat room, with the server's description of them.
+///
+/// The statistics come from the reply that named the members, and are `None`
+/// for a server that sent none — so a consumer never reads "shares nothing"
+/// from a missing answer.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize)]
 pub struct RoomMemberRecord {
     pub room: String,
     pub user: String,
+    /// `online`, `away`, or `offline`.
+    pub status: Option<String>,
+    pub average_speed: Option<u32>,
+    pub shared_files: Option<u32>,
+    pub shared_folders: Option<u32>,
+    pub slots_full: Option<bool>,
+    pub country: Option<String>,
 }
 
 impl Record for RoomMemberRecord {
+    /// The username alone, unchanged by the statistics added alongside it:
+    /// the text line is a roster a caller pipes into other commands, and the
+    /// statistics are there for `--json` to carry.
     fn text(&self) -> String {
         sanitize(&self.user)
     }
 }
 
+/// One user this session is watching, with whatever the server has already
+/// said about them. The status is `None` until the watch reply lands.
+#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
+pub struct WatchedUserRecord {
+    pub user: String,
+    /// `online`, `away`, or `offline`.
+    pub status: Option<String>,
+}
+
+impl Record for WatchedUserRecord {
+    fn text(&self) -> String {
+        format!(
+            "{}\t{}",
+            sanitize(&self.user),
+            self.status.clone().unwrap_or_else(|| "-".to_string())
+        )
+    }
+}
+
 /// One configured share folder.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize)]
 pub struct ShareRecord {

soulseek-rs/src/remote/mod.rs

@@ -12,14 +12,14 @@ use crate::daemon::proto::{
     Ack, AuthParams, AuthResult, CODE_APPLICATION, ChatMessageDto,
     DaemonStatus, DirectoriesParams, DirectoryParams, DownloadDto,
     DownloadStartParams, DownloadStarted, Downloads, Event, IntervalSeconds,
-    Members, MessageParams, Messages, Method, PROTOCOL_VERSION, QueryParams,
+    MemberStats, Members, MessageParams, Messages, Method, PROTOCOL_VERSION,
-    Request, Response, RoomRef, RpcError, SayParams, SearchResults, Searches,
+    QueryParams, Request, Response, RoomRef, RpcError, SayParams,
-    Seconds, SharesStatus, SlotsParams, TransferRef, Uploads, UserRef,
+    SearchResults, Searches, Seconds, SharesStatus, SlotsParams, TransferRef,
-    UserResult,
+    Uploads, UserRef, UserResult, Watched,
 };
 use mirror::Mirror;
 use serde::de::DeserializeOwned;
-use soulseek_rs::types::{Download, DownloadMetadata};
+use soulseek_rs::types::{Download, DownloadMetadata, RoomUserStats};
 use soulseek_rs::{
     DownloadStatus, Result, RoomEvent, SearchResult, SessionLoss,
     SharedDirectory, SoulseekRs, UploadInfo, UserInfo, UserMessage,
@@ -710,6 +710,17 @@ impl SessionApi for RemoteSession {
         .unwrap_or_default()
     }
 
+    fn room_member_stats(&self, room: &str) -> Vec<RoomUserStats> {
+        self.request::<_, MemberStats>(
+            Method::RoomMemberStats,
+            RoomRef {
+                room: room.to_string(),
+            },
+        )
+        .map(|stats| stats.members.into_iter().map(Into::into).collect())
+        .unwrap_or_default()
+    }
+
     fn take_room_events(&self) -> Vec<RoomEvent> {
         self.mirror.take_rooms()
     }
@@ -757,6 +768,30 @@ impl SessionApi for RemoteSession {
         )
     }
 
+    fn watch_user(&self, username: &str) -> Result<()> {
+        self.tell(
+            Method::UserWatch,
+            UserRef {
+                username: username.to_string(),
+            },
+        )
+    }
+
+    fn unwatch_user(&self, username: &str) -> Result<()> {
+        self.tell(
+            Method::UserUnwatch,
+            UserRef {
+                username: username.to_string(),
+            },
+        )
+    }
+
+    fn watched_users(&self) -> Vec<String> {
+        self.request::<_, Watched>(Method::UserWatched, ())
+            .map(|watched| watched.users)
+            .unwrap_or_default()
+    }
+
     fn user_info(&self, username: &str) -> Option<UserInfo> {
         self.request::<_, UserResult>(
             Method::UserInfoOf,

soulseek-rs/src/ui/main_tui/downloads.rs

@@ -3,6 +3,16 @@ use crate::models::{DownloadEntry, FileDisplayData};
 use soulseek_rs::{DownloadStatus, types::Download};
 use std::{sync::mpsc, thread};
 
+/// Done, given up, or ran out of time: the row is all that is left.
+const fn is_finished(download: &Download) -> bool {
+    matches!(
+        download.status,
+        DownloadStatus::Completed
+            | DownloadStatus::Failed(_)
+            | DownloadStatus::TimedOut
+    )
+}
+
 impl MainTui {
     /// Channel for queued downloads, created on first use.
     pub(super) fn downloads_sender(
@@ -63,26 +73,16 @@ impl MainTui {
         // session holds, so dropping them only here would last until the next
         // poll put them straight back.
         for entry in &self.state.downloads {
-            if matches!(
+            if is_finished(&entry.download) {
-                entry.download.status,
-                DownloadStatus::Completed
-                    | DownloadStatus::Failed(_)
-                    | DownloadStatus::TimedOut
-            ) {
                 self.client.remove_download(
                     &entry.download.username,
                     &entry.download.filename,
                 );
             }
         }
-        self.state.downloads.retain(|entry| {
+        self.state
-            !matches!(
+            .downloads
-                entry.download.status,
+            .retain(|entry| !is_finished(&entry.download));
-                DownloadStatus::Completed
-                    | DownloadStatus::Failed(_)
-                    | DownloadStatus::TimedOut
-            )
-        });
         let len = self.state.downloads.len();
         if len == 0 {
             self.state.downloads_table_state.select(None);
@@ -121,7 +121,9 @@ impl MainTui {
         }
     }
 
-    pub(super) fn remove_selected_queued_download(&mut self) {
+    /// Drop the selected transfer: a queued one leaves the queue, a finished
+    /// one leaves the list.
+    pub(super) fn remove_selected_download(&mut self) {
         let Some(index) = self.state.downloads_table_state.selected() else {
             return;
         };
@@ -130,14 +132,21 @@ impl MainTui {
         };
 
         let download = &download_entry.download;
-        if !matches!(download.status, DownloadStatus::Queued) {
+        let dismissed = match download.status {
-            return;
+            DownloadStatus::Queued => self
-        }
+                .client
-
+                .remove_queued_download(&download.username, &download.filename),
-        if !self
+            // A finished transfer may exist only in this window (restored from
-            .client
+            // an earlier run), so the session's "nothing to forget" is not a
-            .remove_queued_download(&download.username, &download.filename)
+            // reason to keep the row.
-        {
+            DownloadStatus::Completed => {
+                self.client
+                    .remove_download(&download.username, &download.filename);
+                true
+            }
+            _ => false,
+        };
+        if !dismissed {
             return;
         }
 

soulseek-rs/src/ui/main_tui/input.rs

@@ -428,7 +428,7 @@ impl MainTui {
                 self.toggle_selected_download_pause();
             }
             KeyCode::Char('d') => {
-                self.remove_selected_queued_download();
+                self.remove_selected_download();
             }
             KeyCode::Char('r') => {
                 self.retry_selected_download();

soulseek-rs/src/ui/main_tui/mod.rs

@@ -265,7 +265,8 @@ pub fn launch_main_tui(
 mod tests {
     use super::*;
     use crate::daemon::proto::ChatMessageDto;
-    use crate::models::{MessageDirection, SearchStatus};
+    use crate::models::{FocusedPane, MessageDirection, SearchStatus};
+    use ratatui::crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
 
     /// A stand-in for a daemon: it already holds a conversation, a transfer
     /// queue, and a search cache, none of which this window created.
@@ -291,6 +292,21 @@ mod tests {
     }
 
     fn queued(username: &str, filename: &str) -> soulseek_rs::types::Download {
+        at_status(username, filename, soulseek_rs::DownloadStatus::Queued)
+    }
+
+    fn completed(
+        username: &str,
+        filename: &str,
+    ) -> soulseek_rs::types::Download {
+        at_status(username, filename, soulseek_rs::DownloadStatus::Completed)
+    }
+
+    fn at_status(
+        username: &str,
+        filename: &str,
+        status: soulseek_rs::DownloadStatus,
+    ) -> soulseek_rs::types::Download {
         let (sender, _) = std::sync::mpsc::channel();
         soulseek_rs::types::Download {
             username: username.to_string(),
@@ -298,13 +314,17 @@ mod tests {
             token: 1,
             size: 4096,
             download_directory: "/tmp".to_string(),
-            status: soulseek_rs::DownloadStatus::Queued,
+            status,
             sender,
             queue_position: None,
             metadata: soulseek_rs::types::DownloadMetadata::default(),
         }
     }
 
+    fn key(ch: char) -> KeyEvent {
+        KeyEvent::new(KeyCode::Char(ch), KeyModifiers::NONE)
+    }
+
     impl SessionApi for TalkativeSession {
         fn message_history(&self) -> Vec<ChatMessageDto> {
             self.history.clone()
@@ -441,6 +461,12 @@ mod tests {
         fn room_members(&self, _room: &str) -> Vec<String> {
             Vec::new()
         }
+        fn room_member_stats(
+            &self,
+            _room: &str,
+        ) -> Vec<soulseek_rs::types::RoomUserStats> {
+            Vec::new()
+        }
         fn take_room_events(&self) -> Vec<soulseek_rs::RoomEvent> {
             Vec::new()
         }
@@ -469,6 +495,15 @@ mod tests {
         ) -> soulseek_rs::Result<()> {
             Ok(())
         }
+        fn watch_user(&self, _username: &str) -> soulseek_rs::Result<()> {
+            Ok(())
+        }
+        fn unwatch_user(&self, _username: &str) -> soulseek_rs::Result<()> {
+            Ok(())
+        }
+        fn watched_users(&self) -> Vec<String> {
+            Vec::new()
+        }
         fn user_info(&self, _username: &str) -> Option<soulseek_rs::UserInfo> {
             None
         }
@@ -619,6 +654,43 @@ mod tests {
         );
     }
 
+    #[test]
+    fn d_clears_a_finished_row_but_not_a_running_one() {
+        // Finished transfers are what a list fills up with after a restart, so
+        // `d` has to be able to dismiss one — restored or not. A running
+        // transfer is not ours to discard, and stays put.
+        let mut tui = with_session(TalkativeSession::default());
+        tui.state.downloads.push(crate::models::DownloadEntry {
+            download: completed("bob", "done.mp3"),
+            receiver: None,
+        });
+        tui.state.downloads_table_state.select(Some(0));
+        tui.state.focused_pane = FocusedPane::Downloads;
+
+        tui.handle_key_event(key('d'));
+
+        assert!(tui.state.downloads.is_empty(), "the row goes too");
+        assert_eq!(tui.state.downloads_table_state.selected(), None);
+
+        tui.state.downloads.push(crate::models::DownloadEntry {
+            download: at_status(
+                "bob",
+                "still.mp3",
+                soulseek_rs::DownloadStatus::InProgress {
+                    bytes_downloaded: 1,
+                    total_bytes: 2,
+                    speed_bytes_per_sec: 1.0,
+                },
+            ),
+            receiver: None,
+        });
+        tui.state.downloads_table_state.select(Some(0));
+
+        tui.handle_key_event(key('d'));
+
+        assert_eq!(tui.state.downloads.len(), 1, "it is not disposable");
+    }
+
     #[test]
     fn a_window_shows_searches_run_in_another() {
         let mut tui =

soulseek-rs/src/ui/main_tui/render.rs

@@ -393,7 +393,7 @@ impl MainTui {
                     vec![
                         ("p", "pause/resume"),
                         ("r", "retry failed"),
-                        ("d", "delete queued"),
+                        ("d", "delete queued/done"),
                         ("c", "clear finished"),
                         ("b", "browse user"),
                         ("1-3", "focus pane"),