refactor some of the room handler
authoralfadur
Sat, 26 Oct 2019 02:36:08 +0300
changeset 15482 4cc9ec732392
parent 15481 58ce582ae87d
child 15483 70aba717485a
refactor some of the room handler
rust/hedgewars-server/src/core/room.rs
rust/hedgewars-server/src/core/server.rs
rust/hedgewars-server/src/handlers.rs
rust/hedgewars-server/src/handlers/common.rs
rust/hedgewars-server/src/handlers/inlobby.rs
rust/hedgewars-server/src/handlers/inroom.rs
rust/hedgewars-server/src/handlers/strings.rs
--- a/rust/hedgewars-server/src/core/room.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/core/room.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -142,9 +142,22 @@
         &self.teams.last().unwrap().1
     }
 
-    pub fn remove_team(&mut self, name: &str) {
-        if let Some(index) = self.teams.iter().position(|(_, t)| t.name == name) {
+    pub fn remove_team(&mut self, team_name: &str) {
+        if let Some(index) = self.teams.iter().position(|(_, t)| t.name == team_name) {
             self.teams.remove(index);
+
+            if let Some(info) = &mut self.game_info {
+                info.left_teams.push(team_name.to_string());
+                info.teams_in_game -= 1;
+
+                if let Some(m) = &info.sync_msg {
+                    info.msg_log.push(m.clone());
+                    info.sync_msg = None
+                }
+                let remove_msg =
+                    crate::utils::to_engine_msg(iter::once(b'F').chain(team_name.bytes()));
+                info.msg_log.push(remove_msg.clone());
+            }
         }
     }
 
--- a/rust/hedgewars-server/src/core/server.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/core/server.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -28,6 +28,22 @@
     Restricted,
 }
 
+pub enum LeaveRoomResult {
+    RoomRemoved,
+    RoomRemains {
+        is_empty: bool,
+        was_master: bool,
+        was_in_game: bool,
+        new_master: Option<ClientId>,
+        removed_teams: Vec<String>,
+    },
+}
+
+#[derive(Debug)]
+pub enum LeaveRoomError {
+    NoRoom,
+}
+
 #[derive(Debug)]
 pub struct UninitializedError();
 #[derive(Debug)]
@@ -138,6 +154,20 @@
     }
 
     #[inline]
+    pub fn client_and_room(&self, client_id: ClientId, room_id: RoomId) -> (&HwClient, &HwRoom) {
+        (&self.clients[client_id], &self.rooms[room_id])
+    }
+
+    #[inline]
+    pub fn client_and_room_mut(
+        &mut self,
+        client_id: ClientId,
+        room_id: RoomId,
+    ) -> (&mut HwClient, &mut HwRoom) {
+        (&mut self.clients[client_id], &mut self.rooms[room_id])
+    }
+
+    #[inline]
     pub fn is_admin(&self, client_id: ClientId) -> bool {
         self.clients
             .get(client_id)
@@ -244,6 +274,81 @@
         }
     }
 
+    pub fn leave_room(&mut self, client_id: ClientId) -> Result<LeaveRoomResult, LeaveRoomError> {
+        let client = &mut self.clients[client_id];
+        if let Some(room_id) = client.room_id {
+            let room = &mut self.rooms[room_id];
+
+            room.players_number -= 1;
+            client.room_id = None;
+
+            let is_empty = room.players_number == 0;
+            let is_fixed = room.is_fixed();
+            let was_master = room.master_id == Some(client_id);
+            let was_in_game = client.is_in_game();
+            let mut removed_teams = vec![];
+
+            if is_empty && !is_fixed {
+                if client.is_ready() && room.ready_players_number > 0 {
+                    room.ready_players_number -= 1;
+                }
+
+                removed_teams = room
+                    .client_teams(client.id)
+                    .map(|t| t.name.clone())
+                    .collect();
+
+                for team_name in &removed_teams {
+                    room.remove_team(team_name);
+                }
+
+                if client.is_master() && !is_fixed {
+                    client.set_is_master(false);
+                    room.master_id = None;
+                }
+            }
+
+            client.set_is_ready(false);
+            client.set_is_in_game(false);
+
+            if !is_fixed {
+                if room.players_number == 0 {
+                    self.rooms.remove(room_id);
+                } else if room.master_id == None {
+                    let new_master_id = self.room_clients(room_id).next();
+                    if let Some(new_master_id) = new_master_id {
+                        let room = &mut self.rooms[room_id];
+                        room.master_id = Some(new_master_id);
+                        let new_master = &mut self.clients[new_master_id];
+                        new_master.set_is_master(true);
+
+                        if room.protocol_number < 42 {
+                            room.name = new_master.nick.clone();
+                        }
+
+                        room.set_join_restriction(false);
+                        room.set_team_add_restriction(false);
+                        room.set_unregistered_players_restriction(true);
+                    }
+                }
+            }
+
+            if is_empty && !is_fixed {
+                Ok(LeaveRoomResult::RoomRemoved)
+            } else {
+                Ok(LeaveRoomResult::RoomRemains {
+                    is_empty,
+                    was_master,
+                    was_in_game,
+                    new_master: self.rooms[room_id].master_id,
+                    removed_teams,
+                })
+            }
+        } else {
+            Err(LeaveRoomError::NoRoom)
+        }
+    }
+
     #[inline]
     pub fn set_var(&mut self, client_id: ClientId, var: ServerVar) -> Result<(), AccessError> {
         if self.clients[client_id].is_admin() {
--- a/rust/hedgewars-server/src/handlers.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/handlers.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -1,4 +1,3 @@
-use mio;
 use std::{
     cmp::PartialEq,
     collections::HashMap,
--- a/rust/hedgewars-server/src/handlers/common.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/handlers/common.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -2,7 +2,7 @@
     core::{
         client::HwClient,
         room::HwRoom,
-        server::{HwServer, JoinRoomError},
+        server::{HwServer, JoinRoomError, LeaveRoomResult},
         types::{ClientId, GameCfg, RoomId, TeamInfo, Vote, VoteType},
     },
     protocol::messages::{
@@ -98,103 +98,6 @@
     response.add(rooms_msg.send_self());
 }
 
-pub fn remove_teams(
-    room: &mut HwRoom,
-    team_names: Vec<String>,
-    is_in_game: bool,
-    response: &mut Response,
-) {
-    if let Some(ref mut info) = room.game_info {
-        for team_name in &team_names {
-            info.left_teams.push(team_name.clone());
-
-            if is_in_game {
-                let msg = once(b'F').chain(team_name.bytes());
-                response.add(
-                    ForwardEngineMessage(vec![to_engine_msg(msg)])
-                        .send_all()
-                        .in_room(room.id)
-                        .but_self(),
-                );
-
-                info.teams_in_game -= 1;
-
-                let remove_msg = to_engine_msg(once(b'F').chain(team_name.bytes()));
-                if let Some(m) = &info.sync_msg {
-                    info.msg_log.push(m.clone());
-                    info.sync_msg = None
-                }
-                info.msg_log.push(remove_msg.clone());
-
-                response.add(
-                    ForwardEngineMessage(vec![remove_msg])
-                        .send_all()
-                        .in_room(room.id)
-                        .but_self(),
-                );
-            }
-        }
-    }
-
-    for team_name in team_names {
-        room.remove_team(&team_name);
-        response.add(TeamRemove(team_name).send_all().in_room(room.id));
-    }
-}
-
-fn remove_client_from_room(
-    client: &mut HwClient,
-    room: &mut HwRoom,
-    response: &mut Response,
-    msg: &str,
-) {
-    room.players_number -= 1;
-    if room.players_number > 0 || room.is_fixed() {
-        if client.is_ready() && room.ready_players_number > 0 {
-            room.ready_players_number -= 1;
-        }
-
-        let team_names: Vec<_> = room
-            .client_teams(client.id)
-            .map(|t| t.name.clone())
-            .collect();
-        remove_teams(room, team_names, client.is_in_game(), response);
-
-        if room.players_number > 0 {
-            response.add(
-                RoomLeft(client.nick.clone(), msg.to_string())
-                    .send_all()
-                    .in_room(room.id)
-                    .but_self(),
-            );
-        }
-
-        if client.is_master() && !room.is_fixed() {
-            client.set_is_master(false);
-            response.add(
-                ClientFlags(
-                    remove_flags(&[Flags::RoomMaster]),
-                    vec![client.nick.clone()],
-                )
-                .send_all()
-                .in_room(room.id),
-            );
-            room.master_id = None;
-        }
-    }
-
-    client.room_id = None;
-
-    let update_msg = if room.players_number == 0 && !room.is_fixed() {
-        RoomRemove(room.name.clone())
-    } else {
-        RoomUpdated(room.name.clone(), room.info(Some(&client)))
-    };
-    response.add(update_msg.send_all().with_protocol(room.protocol_number));
-
-    response.add(ClientFlags(remove_flags(&[Flags::InRoom]), vec![client.nick.clone()]).send_all());
-}
-
 pub fn change_master(
     server: &mut HwServer,
     room_id: RoomId,
@@ -291,33 +194,85 @@
     }
 }
 
-pub fn exit_room(server: &mut HwServer, client_id: ClientId, response: &mut Response, msg: &str) {
-    let client = &mut server.clients[client_id];
+pub fn get_remove_teams_data(
+    room_id: RoomId,
+    was_in_game: bool,
+    removed_teams: Vec<String>,
+    response: &mut Response,
+) {
+    if was_in_game {
+        for team_name in &removed_teams {
+            let msg = once(b'F').chain(team_name.bytes());
+            response.add(
+                ForwardEngineMessage(vec![to_engine_msg(msg)])
+                    .send_all()
+                    .in_room(room_id)
+                    .but_self(),
+            );
 
-    if let Some(room_id) = client.room_id {
-        let room = &mut server.rooms[room_id];
+            let remove_msg = to_engine_msg(once(b'F').chain(team_name.bytes()));
 
-        remove_client_from_room(client, room, response, msg);
+            response.add(
+                ForwardEngineMessage(vec![remove_msg])
+                    .send_all()
+                    .in_room(room_id)
+                    .but_self(),
+            );
+        }
+    }
+
+    for team_name in removed_teams {
+        response.add(TeamRemove(team_name).send_all().in_room(room_id));
+    }
+}
 
-        if !room.is_fixed() {
-            if room.players_number == 0 {
-                server.rooms.remove(room_id);
-            } else if room.master_id == None {
-                let new_master_id = server.room_clients(room_id).next();
-                if let Some(new_master_id) = new_master_id {
-                    let new_master_nick = server.clients[new_master_id].nick.clone();
-                    let room = &mut server.rooms[room_id];
-                    room.master_id = Some(new_master_id);
-                    server.clients[new_master_id].set_is_master(true);
+pub fn get_room_leave_data(
+    server: &HwServer,
+    room: &HwRoom,
+    leave_message: &str,
+    result: LeaveRoomResult,
+    response: &mut Response,
+) {
+    let client = server.client(response.client_id);
+    response.add(ClientFlags(remove_flags(&[Flags::InRoom]), vec![client.nick.clone()]).send_all());
+
+    match (result) {
+        LeaveRoomResult::RoomRemoved => {
+            response.add(
+                RoomRemove(room.name.clone())
+                    .send_all()
+                    .with_protocol(room.protocol_number),
+            );
+        }
 
-                    if room.protocol_number < 42 {
-                        room.name = new_master_nick.clone();
-                    }
+        LeaveRoomResult::RoomRemains {
+            is_empty,
+            was_master,
+            new_master,
+            was_in_game,
+            removed_teams,
+        } => {
+            if !is_empty {
+                response.add(
+                    RoomLeft(client.nick.clone(), leave_message.to_string())
+                        .send_all()
+                        .in_room(room.id)
+                        .but_self(),
+                );
+            }
 
-                    room.set_join_restriction(false);
-                    room.set_team_add_restriction(false);
-                    room.set_unregistered_players_restriction(true);
+            if was_master {
+                response.add(
+                    ClientFlags(
+                        remove_flags(&[Flags::RoomMaster]),
+                        vec![client.nick.clone()],
+                    )
+                    .send_all()
+                    .in_room(room.id),
+                );
 
+                if let Some(new_master_id) = new_master {
+                    let new_master_nick = server.client(new_master_id).nick.clone();
                     response.add(
                         ClientFlags(add_flags(&[Flags::RoomMaster]), vec![new_master_nick])
                             .send_all()
@@ -325,16 +280,32 @@
                     );
                 }
             }
+
+            get_remove_teams_data(room.id, was_in_game, removed_teams, response);
+
+            response.add(
+                RoomUpdated(room.name.clone(), room.info(Some(&client)))
+                    .send_all()
+                    .with_protocol(room.protocol_number),
+            );
         }
     }
 }
 
 pub fn remove_client(server: &mut HwServer, response: &mut Response, msg: String) {
     let client_id = response.client_id();
-    let client = &mut server.clients[client_id];
+    let client = server.client(client_id);
     let nick = client.nick.clone();
 
-    exit_room(server, client_id, response, &msg);
+    if let Some(room_id) = client.room_id {
+        match server.leave_room(client_id) {
+            Ok(result) => {
+                let room = server.room(room_id);
+                super::common::get_room_leave_data(server, room, &msg, result, response)
+            }
+            Err(_) => (),
+        }
+    }
 
     server.remove_client(client_id);
 
@@ -423,7 +394,15 @@
                 if client.room_id == Some(room_id) {
                     let id = client.id;
                     response.add(Kicked.send(id));
-                    exit_room(server, id, response, "kicked");
+                    match server.leave_room(response.client_id) {
+                        Ok(result) => {
+                            let room = server.room(room_id);
+                            super::common::get_room_leave_data(
+                                server, room, "kicked", result, response,
+                            )
+                        }
+                        Err(_) => (),
+                    }
                 }
             }
         }
--- a/rust/hedgewars-server/src/handlers/inlobby.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/handlers/inlobby.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -1,5 +1,3 @@
-use mio;
-
 use super::{common::rnd_reply, strings::*};
 use crate::{
     core::{
--- a/rust/hedgewars-server/src/handlers/inroom.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/handlers/inroom.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -1,11 +1,8 @@
-use mio;
-
-use super::common::rnd_reply;
-use crate::utils::to_engine_msg;
+use super::{common::rnd_reply, strings::*};
 use crate::{
     core::{
         room::{HwRoom, RoomFlags, MAX_TEAMS_IN_ROOM},
-        server::HwServer,
+        server::{HwServer, LeaveRoomResult},
         types,
         types::{ClientId, GameCfg, RoomId, VoteType, Voting, MAX_HEDGEHOGS_PER_TEAM},
     },
@@ -13,7 +10,7 @@
         add_flags, remove_flags, server_chat, HwProtocolMessage, HwServerMessage::*,
         ProtocolFlags as Flags,
     },
-    utils::is_name_illegal,
+    utils::{is_name_illegal, to_engine_msg},
 };
 use base64::{decode, encode};
 use log::*;
@@ -46,7 +43,7 @@
     b"M#+LlRrUuDdZzAaSjJ,NpPwtgfhbc12345\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A";
 const NON_TIMED_MESSAGES: &[u8] = b"M#hb";
 
-#[cfg(canhazslicepatterns)]
+/*#[cfg(canhazslicepatterns)]
 fn is_msg_valid(msg: &[u8], team_indices: &[u8]) -> bool {
     match msg {
         [size, typ, body..MAX] => {
@@ -60,7 +57,7 @@
         }
         _ => false,
     }
-}
+}*/
 
 fn is_msg_valid(msg: &[u8], _team_indices: &[u8]) -> bool {
     if let Some(typ) = msg.get(1) {
@@ -110,8 +107,7 @@
     room_id: RoomId,
     message: HwProtocolMessage,
 ) {
-    let client = &mut server.clients[client_id];
-    let room = &mut server.rooms[room_id];
+    let (client, room) = server.client_and_room_mut(client_id, room_id);
 
     use crate::protocol::messages::HwProtocolMessage::*;
     match message {
@@ -120,7 +116,14 @@
                 Some(s) => format!("part: {}", s),
                 None => "part".to_string(),
             };
-            super::common::exit_room(server, client_id, response, &msg);
+
+            match server.leave_room(client_id) {
+                Ok(result) => {
+                    let room = server.room(room_id);
+                    super::common::get_room_leave_data(server, room, &msg, result, response)
+                }
+                Err(_) => (),
+            }
         }
         Chat(msg) => {
             response.add(
@@ -133,10 +136,8 @@
             );
         }
         TeamChat(msg) => {
-            let room = &server.rooms[room_id];
             if let Some(ref info) = room.game_info {
                 if let Some(clan_color) = room.find_team_color(client_id) {
-                    let client = &server.clients[client_id];
                     let engine_msg =
                         to_engine_msg(format!("b{}]{}\x20\x20", client.nick, msg).bytes());
                     let team = room.clan_team_owners(clan_color).collect();
@@ -164,28 +165,24 @@
         }
         MaxTeams(count) => {
             if !client.is_master() {
-                response.add(Warning("You're not the room master!".to_string()).send_self());
+                response.warn(NOT_MASTER);
             } else if !(2..=MAX_TEAMS_IN_ROOM).contains(&count) {
-                response
-                    .add(Warning("/maxteams: specify number from 2 to 8".to_string()).send_self());
+                response.warn("/maxteams: specify number from 2 to 8");
             } else {
-                server.rooms[room_id].max_teams = count;
+                room.max_teams = count;
             }
         }
         RoomName(new_name) => {
             if is_name_illegal(&new_name) {
-                response.add(Warning("Illegal room name! A room name must be between 1-40 characters long, must not have a trailing or leading space and must not have any of these characters: $()*+?[]^{|}".to_string()).send_self());
+                response.warn("Illegal room name! A room name must be between 1-40 characters long, must not have a trailing or leading space and must not have any of these characters: $()*+?[]^{|}");
             } else if server.has_room(&new_name) {
-                response.add(
-                    Warning("A room with the same name already exists.".to_string()).send_self(),
-                );
+                response.warn("A room with the same name already exists.");
             } else {
-                let room = &mut server.rooms[room_id];
+                let (client, room) = server.client_and_room_mut(client_id, room_id);
                 if room.is_fixed() || room.master_id != Some(client_id) {
-                    response.add(Warning("Access denied.".to_string()).send_self());
+                    response.warn(ACCESS_DENIED);
                 } else {
                     let mut old_name = new_name.clone();
-                    let client = &server.clients[client_id];
                     swap(&mut room.name, &mut old_name);
                     super::common::get_room_update(Some(old_name), room, Some(&client), response);
                 }
@@ -214,23 +211,15 @@
         }
         AddTeam(mut info) => {
             if room.teams.len() >= room.max_teams as usize {
-                response.add(Warning("Too many teams!".to_string()).send_self());
+                response.warn("Too many teams!");
             } else if room.addable_hedgehogs() == 0 {
-                response.add(Warning("Too many hedgehogs!".to_string()).send_self());
+                response.warn("Too many hedgehogs!");
             } else if room.find_team(|t| t.name == info.name) != None {
-                response.add(
-                    Warning("There's already a team with same name in the list.".to_string())
-                        .send_self(),
-                );
+                response.warn("There's already a team with same name in the list.");
             } else if room.game_info.is_some() {
-                response.add(
-                    Warning("Joining not possible: Round is in progress.".to_string()).send_self(),
-                );
+                response.warn("Joining not possible: Round is in progress.");
             } else if room.is_team_add_restricted() {
-                response.add(
-                    Warning("This room currently does not allow adding new teams.".to_string())
-                        .send_self(),
-                );
+                response.warn("This room currently does not allow adding new teams.");
             } else {
                 info.owner = client.nick.clone();
                 let team = room.add_team(client.id, *info, client.protocol_number < 42);
@@ -254,8 +243,9 @@
                         .in_room(room_id),
                 );
 
+                let room = server.room(room_id);
                 let room_master = if let Some(id) = room.master_id {
-                    Some(&server.clients[id])
+                    Some(server.client(id))
                 } else {
                     None
                 };
@@ -263,17 +253,22 @@
             }
         }
         RemoveTeam(name) => match room.find_team_owner(&name) {
-            None => response.add(
-                Warning("Error: The team you tried to remove does not exist.".to_string())
-                    .send_self(),
-            ),
-            Some((id, _)) if id != client_id => response
-                .add(Warning("You can't remove a team you don't own.".to_string()).send_self()),
+            None => response.warn("Error: The team you tried to remove does not exist."),
+            Some((id, _)) if id != client_id => {
+                response.warn("You can't remove a team you don't own.")
+            }
             Some((_, name)) => {
+                let name = name.to_string();
                 client.teams_in_game -= 1;
                 client.clan = room.find_team_color(client.id);
-                let names = vec![name.to_string()];
-                super::common::remove_teams(room, names, client.is_in_game(), response);
+                room.remove_team(&name);
+                let removed_teams = vec![name];
+                super::common::get_remove_teams_data(
+                    room_id,
+                    client.is_in_game(),
+                    removed_teams,
+                    response,
+                );
 
                 match room.game_info {
                     Some(ref info) if info.teams_in_game == 0 => {
@@ -291,7 +286,7 @@
                     addable_hedgehogs + team.hedgehogs_number,
                 );
                 if !client.is_master() {
-                    response.add(Error("You're not the room master!".to_string()).send_self());
+                    response.error(NOT_MASTER);
                 } else if !(1..=max_hedgehogs).contains(&number) {
                     response
                         .add(HedgehogsNumber(team.name.clone(), team.hedgehogs_number).send_self());
@@ -305,13 +300,13 @@
                     );
                 }
             } else {
-                response.add(Warning("No such team.".to_string()).send_self());
+                response.warn(NO_TEAM);
             }
         }
         SetTeamColor(team_name, color) => {
             if let Some((owner, team)) = room.find_team_and_owner_mut(|t| t.name == team_name) {
                 if !client.is_master() {
-                    response.add(Error("You're not the room master!".to_string()).send_self());
+                    response.error(NOT_MASTER);
                 } else {
                     team.color = color;
                     response.add(
@@ -323,14 +318,14 @@
                     server.clients[owner].clan = Some(color);
                 }
             } else {
-                response.add(Warning("No such team.".to_string()).send_self());
+                response.warn(NO_TEAM);
             }
         }
         Cfg(cfg) => {
             if room.is_fixed() {
-                response.add(Warning("Access denied.".to_string()).send_self());
+                response.warn(ACCESS_DENIED);
             } else if !client.is_master() {
-                response.add(Error("You're not the room master!".to_string()).send_self());
+                response.error(NOT_MASTER);
             } else {
                 let cfg = match cfg {
                     GameCfg::Scheme(name, mut values) => {
@@ -367,10 +362,7 @@
                     }),
                     Err(e) => {
                         warn!("Error while serializing the room configs: {}", e);
-                        response.add(
-                            Warning("Unable to serialize the room configs.".to_string())
-                                .send_self(),
-                        )
+                        response.warn("Unable to serialize the room configs.")
                     }
                 }
             }
@@ -589,17 +581,16 @@
             let delegate_id = server.find_client(&nick).map(|c| (c.id, c.room_id));
             let client = &server.clients[client_id];
             if !(client.is_admin() || client.is_master()) {
-                response.add(
-                    Warning("You're not the room master or a server admin!".to_string())
-                        .send_self(),
-                )
+                response.warn("You're not the room master or a server admin!")
             } else {
                 match delegate_id {
-                    None => response.add(Warning("Player is not online.".to_string()).send_self()),
-                    Some((id, _)) if id == client_id => response
-                        .add(Warning("You're already the room master.".to_string()).send_self()),
-                    Some((_, id)) if id != Some(room_id) => response
-                        .add(Warning("The player is not in your room.".to_string()).send_self()),
+                    None => response.warn("Player is not online."),
+                    Some((id, _)) if id == client_id => {
+                        response.warn("You're already the room master.")
+                    }
+                    Some((_, id)) if id != Some(room_id) => {
+                        response.warn("The player is not in your room.")
+                    }
                     Some((id, _)) => {
                         super::common::change_master(server, room_id, id, response);
                     }
--- a/rust/hedgewars-server/src/handlers/strings.rs	Thu Oct 24 09:41:10 2019 -0400
+++ b/rust/hedgewars-server/src/handlers/strings.rs	Sat Oct 26 02:36:08 2019 +0300
@@ -2,7 +2,9 @@
 pub const AUTHENTICATION_FAILED: &str = "Authentication failed.";
 pub const ILLEGAL_ROOM_NAME: &str = "Illegal room name! A room name must be between 1-40 characters long, must not have a trailing or leading space and must not have any of these characters: $()*+?[]^{|}";
 pub const NO_ROOM: &str = "No such room.";
+pub const NO_TEAM: &str = "No such team.";
 pub const NO_USER: &str = "No such user.";
+pub const NOT_MASTER: &str = "You're not the room master!";
 pub const REPLAY_LOAD_FAILED: &str = "Could't load the replay";
 pub const REPLAY_NOT_SUPPORTED: &str = "This server does not support replays!";
 pub const REGISTRATION_REQUIRED: &str = "This server only allows registered users to join.";