diff -r e5415faa117b -r 6a2e13e36b7f rust/hedgewars-server/src/server/handlers/loggingin.rs
--- a/rust/hedgewars-server/src/server/handlers/loggingin.rs	Thu Feb 07 14:49:51 2019 +0300
+++ b/rust/hedgewars-server/src/server/handlers/loggingin.rs	Thu Feb 07 17:02:24 2019 +0300
@@ -2,13 +2,19 @@
 
 use crate::{
     protocol::messages::{HWProtocolMessage, HWServerMessage::*},
-    server::{client::HWClient, core::HWServer, coretypes::ClientId},
+    server::{
+        core::{HWAnteClient, HWAnteroom},
+        coretypes::ClientId,
+    },
     utils::is_name_illegal,
 };
 use log::*;
 #[cfg(feature = "official-server")]
 use openssl::sha::sha1;
-use std::fmt::{Formatter, LowerHex};
+use std::{
+    fmt::{Formatter, LowerHex},
+    num::NonZeroU16,
+};
 
 #[derive(PartialEq)]
 struct Sha1Digest([u8; 20]);
@@ -23,7 +29,7 @@
 }
 
 #[cfg(feature = "official-server")]
-fn get_hash(client: &HWClient, salt1: &str, salt2: &str) -> Sha1Digest {
+fn get_hash(client: &HWAnteClient, salt1: &str, salt2: &str) -> Sha1Digest {
     let s = format!(
         "{}{}{}{}{}",
         salt1, salt2, client.web_password, client.protocol_number, "!hedgewars"
@@ -31,66 +37,88 @@
     Sha1Digest(sha1(s.as_bytes()))
 }
 
+pub enum LoginResult {
+    Unchanged,
+    Complete,
+    Exit,
+}
+
 pub fn handle(
-    server: &mut HWServer,
+    anteroom: &mut HWAnteroom,
     client_id: ClientId,
     response: &mut super::Response,
     message: HWProtocolMessage,
-) {
+) -> LoginResult {
     match message {
+        HWProtocolMessage::Quit(_) => {
+            response.add(Bye("User quit".to_string()).send_self());
+            LoginResult::Exit
+        }
         HWProtocolMessage::Nick(nick) => {
-            let client = &mut server.clients[client_id];
+            let client = &mut anteroom.clients[client_id];
             debug!("{} {}", nick, is_name_illegal(&nick));
-            if client.room_id != None {
-                unreachable!()
-            } else if !client.nick.is_empty() {
+            if !client.nick.is_some() {
                 response.add(Error("Nickname already provided.".to_string()).send_self());
+                LoginResult::Unchanged
             } else if is_name_illegal(&nick) {
-                super::common::remove_client(server, response, "Illegal nickname! Nicknames 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())
+                response.add(Bye("Illegal nickname! Nicknames 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());
+                LoginResult::Exit
             } else {
-                client.nick = nick.clone();
+                client.nick = Some(nick.clone());
                 response.add(Nick(nick).send_self());
 
-                if client.protocol_number > 0 {
-                    super::common::process_login(server, response);
+                if client.protocol_number.is_some() {
+                    LoginResult::Complete
+                } else {
+                    LoginResult::Unchanged
                 }
             }
         }
         HWProtocolMessage::Proto(proto) => {
-            let client = &mut server.clients[client_id];
-            if client.protocol_number != 0 {
+            let client = &mut anteroom.clients[client_id];
+            if client.protocol_number.is_some() {
                 response.add(Error("Protocol already known.".to_string()).send_self());
+                LoginResult::Unchanged
             } else if proto == 0 {
                 response.add(Error("Bad number.".to_string()).send_self());
+                LoginResult::Unchanged
             } else {
-                client.protocol_number = proto;
+                client.protocol_number = NonZeroU16::new(proto);
                 response.add(Proto(proto).send_self());
 
-                if client.nick != "" {
-                    super::common::process_login(server, response);
+                if client.nick.is_some() {
+                    LoginResult::Complete
+                } else {
+                    LoginResult::Unchanged
                 }
             }
         }
         #[cfg(feature = "official-server")]
         HWProtocolMessage::Password(hash, salt) => {
-            let c = &server.clients[client_id];
+            let client = &anteroom.clients[client_id];
 
-            let client_hash = get_hash(c, &salt, &c.server_salt);
-            let server_hash = get_hash(c, &c.server_salt, &salt);
+            let client_hash = get_hash(client, &salt, &client.server_salt);
+            let server_hash = get_hash(client, &client.server_salt, &salt);
             if client_hash == server_hash {
                 response.add(ServerAuth(format!("{:x}", server_hash)).send_self());
-            //TODO enter lobby
+                LoginResult::Complete
             } else {
-                super::common::remove_client(server, response, "Authentication failed".to_string())
+                response.add(Bye("Authentication failed".to_string()).send_self());
+                LoginResult::Exit
             }
         }
         #[cfg(feature = "official-server")]
         HWProtocolMessage::Checker(protocol, nick, password) => {
-            let c = &mut server.clients[client_id];
-            c.nick = nick;
-            c.web_password = password;
-            c.set_is_checker(true);
+            let client = &mut anteroom.clients[client_id];
+            client.protocol_number = Some(protocol);
+            client.nick = Some(nick);
+            client.web_password = password;
+            //client.set_is_checker(true);
+            LoginResult::Complete
         }
-        _ => warn!("Incorrect command in logging-in state"),
+        _ => {
+            warn!("Incorrect command in logging-in state");
+            LoginResult::Unchanged
+        }
     }
 }