diff --git a/chat/src/main/java/rtgre/modeles/ContactMap.java b/chat/src/main/java/rtgre/modeles/ContactMap.java
index f44bcc0..5924158 100644
--- a/chat/src/main/java/rtgre/modeles/ContactMap.java
+++ b/chat/src/main/java/rtgre/modeles/ContactMap.java
@@ -9,4 +9,16 @@ public class ContactMap extends TreeMap<String, Contact> {
     public Contact getContact(String login) {
         return this.get(login);
     }
+
+    public void loadDefaultContacts() {
+        this.put("mickey", new Contact("mickey", null));
+        this.put("minnie", new Contact("minnie", null));
+        this.put("dingo", new Contact("dingo", null));
+        this.put("riri", new Contact("riri", null));
+        this.put("fifi", new Contact("fifi", null));
+        this.put("loulou", new Contact("loulou", null));
+        this.put("donald", new Contact("donald", null));
+        this.put("daisy", new Contact("daisy", null));
+        this.put("picsou", new Contact("picsou", null));
+    }
 }
diff --git a/chat/src/main/java/rtgre/server/ChatServer.java b/chat/src/main/java/rtgre/server/ChatServer.java
index 3665663..957765e 100644
--- a/chat/src/main/java/rtgre/server/ChatServer.java
+++ b/chat/src/main/java/rtgre/server/ChatServer.java
@@ -1,5 +1,10 @@
 package rtgre.server;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+import rtgre.modeles.ContactMap;
+import rtgre.modeles.Event;
+
 import java.io.*;
 import java.net.ServerSocket;
 import java.net.Socket;
@@ -17,6 +22,7 @@ public class ChatServer {
     private static final Logger LOGGER = Logger.getLogger(ChatServer.class.getCanonicalName());
 
     private Vector<ChatClientHandler> clientList;
+    private ContactMap contactMap;
 
     static {
         try {
@@ -43,6 +49,8 @@ public class ChatServer {
         passiveSock = new ServerSocket(port);
         LOGGER.info("Serveur en écoute " + passiveSock);
         clientList = new Vector<>();
+        contactMap = new ContactMap();
+        contactMap.loadDefaultContacts();
     }
 
     public void close() throws IOException {
@@ -101,6 +109,10 @@ public class ChatServer {
         //client.echoLoop();
     }
 
+    public ContactMap getContactMap() {
+        return contactMap;
+    }
+
     private class ChatClientHandler {
         public static final String END_MESSAGE = "fin";
         /**
@@ -160,6 +172,52 @@ public class ChatServer {
             close();
         }
 
+        public void eventReceiveLoop() {
+            try {
+                String message = null;
+                while (!END_MESSAGE.equals(message)) {
+                    message = in.readLine();
+                    if (message == null) {
+                        break;
+                    }
+                    LOGGER.info("[%s] Réception de : %s".formatted(ipPort, message));
+                    LOGGER.info("[%s] Envoi de : %s".formatted(ipPort, message));
+                    try {
+                        if (handleEvent(message)) {
+                            break;
+                        }
+                    } catch (Exception e) {
+                        break;
+                    }
+                }
+            } catch (IOException e) {
+                LOGGER.severe("[%s] %s".formatted(ipPort, e));
+            }
+            close();
+        }
+
+        private boolean handleEvent(String message) throws JSONException, IllegalStateException {
+            Event event = Event.fromJson(message);
+            switch (event.getType()) {
+                case Event.AUTH:
+                    doLogin(event.getContent());
+                    return false;
+                default:
+                    return true;
+            }
+        }
+
+        private void doLogin(JSONObject content) {
+            String login = content.getString("login");
+            if (login.equals("")) {
+                throw new JSONException("Aucun login fourni");
+            } else if (!contactMap.containsKey(login)) {
+                throw new IllegalStateException("Login non-authorisé");
+            } else {
+                contactMap.getContact(login).setConnected(true);
+            }
+        }
+
         public void send(String message) throws IOException {
             LOGGER.finest("send: %s".formatted(message));
             out.println(message);