force logout on 401

android/app/src/main/java/com/example/petstoremobile/activities/HomeActivity.java

@@ -1,7 +1,10 @@
 package com.example.petstoremobile.activities;
 
 import android.Manifest;
+import android.content.BroadcastReceiver;
+import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
@@ -20,6 +23,7 @@ import androidx.navigation.fragment.NavHostFragment;
 import androidx.navigation.ui.NavigationUI;
 
 import com.example.petstoremobile.R;
+import com.example.petstoremobile.api.auth.TokenManager;
 import com.example.petstoremobile.databinding.ActivityHomeBinding;
 import com.example.petstoremobile.services.ChatNotificationService;
 
@@ -30,6 +34,16 @@ public class HomeActivity extends AppCompatActivity {
     private ActivityHomeBinding binding;
     private NavController navController;
 
+    private final BroadcastReceiver forceLogoutReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            Intent loginIntent = new Intent(HomeActivity.this, MainActivity.class);
+            loginIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+            startActivity(loginIntent);
+            finish();
+        }
+    };
+
     // Launcher to ask for notification permission
     private final ActivityResultLauncher<String> requestPermissionLauncher =
             registerForActivityResult(new ActivityResultContracts.RequestPermission(), isGranted -> {
@@ -67,10 +81,22 @@ public class HomeActivity extends AppCompatActivity {
             handleIntent(getIntent());
         }
 
-        // Start the notification service and request for notification permission
+        IntentFilter filter = new IntentFilter(TokenManager.ACTION_FORCE_LOGOUT);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            registerReceiver(forceLogoutReceiver, filter, Context.RECEIVER_NOT_EXPORTED);
+        } else {
+            registerReceiver(forceLogoutReceiver, filter);
+        }
+
         startNotificationService();
         requestNotificationPermission();
     }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        unregisterReceiver(forceLogoutReceiver);
+    }
     
     /**
      * Handles new intents received while the activity is already running (like notifications).

android/app/src/main/java/com/example/petstoremobile/api/auth/AuthInterceptor.java

@@ -23,19 +23,26 @@ public class AuthInterceptor implements Interceptor {
         String token = tokenManager.getToken();
         String url = chain.request().url().toString();
 
-        if (url.contains("auth/login") || url.contains("auth/register")) {
+        boolean isAuthEndpoint = url.contains("auth/login") || url.contains("auth/register");
+
+        if (isAuthEndpoint) {
             return chain.proceed(chain.request());
         }
 
-        //If we have a token then add it to the request
+        Response response;
         if (token != null) {
             Request request = chain.request().newBuilder()
                     .addHeader("Authorization", "Bearer " + token)
                     .build();
-            return chain.proceed(request);
+            response = chain.proceed(request);
+        } else {
+            response = chain.proceed(chain.request());
         }
 
-        //If no token then just pass the request
-        return chain.proceed(chain.request());
+        if (response.code() == 401) {
+            tokenManager.forceLogout();
+        }
+
+        return response;
     }
 }

android/app/src/main/java/com/example/petstoremobile/api/auth/TokenManager.java

@@ -1,6 +1,7 @@
 package com.example.petstoremobile.api.auth;
 
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
 
 import javax.inject.Inject;
@@ -10,6 +11,8 @@ import dagger.hilt.android.qualifiers.ApplicationContext;
 
 @Singleton
 public class TokenManager {
+    public static final String ACTION_FORCE_LOGOUT = "com.example.petstoremobile.ACTION_FORCE_LOGOUT";
+
     private static final String TOKEN_KEY = "token";
     private static final String USERNAME_KEY = "username";
     private static final String ROLE_KEY = "role";
@@ -17,13 +20,22 @@ public class TokenManager {
     private static final String USER_ID_KEY = "user_id";
     private static final String PRIMARY_STORE_ID_KEY = "primary_store_id";
 
+    private final Context context;
     private SharedPreferences prefs;
 
     @Inject
     public TokenManager(@ApplicationContext Context context) {
+        this.context = context;
         prefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
     }
 
+    public void forceLogout() {
+        clearLoginData();
+        Intent intent = new Intent(ACTION_FORCE_LOGOUT);
+        intent.setPackage(context.getPackageName());
+        context.sendBroadcast(intent);
+    }
+
     //save login data after login
     public void saveLoginData(String token, String username, String role) {
         prefs.edit()