Added login plugin

Plugins/Login/Plugin.cs

@@ -0,0 +1,75 @@
+using System.Collections.Concurrent;
+using System.Reflection;
+using System.Threading.Tasks;
+using SharedLibraryCore;
+using SharedLibraryCore.Configuration;
+using SharedLibraryCore.Exceptions;
+using SharedLibraryCore.Interfaces;
+
+namespace IW4MAdmin.Plugins.Login
+{
+    public class Plugin : IPlugin
+    {
+        public string Name => "Login";
+
+        public float Version => Assembly.GetExecutingAssembly().GetName().Version.Major + Assembly.GetExecutingAssembly().GetName().Version.Minor / 10.0f;
+
+        public string Author => "RaidMax";
+
+        public static ConcurrentDictionary<int, bool> AuthorizedClients { get; private set; }
+        private Configuration Config;
+
+        public Task OnEventAsync(GameEvent E, Server S)
+        {
+            if (E.Remote || Config.RequirePrivilegedClientLogin == false)
+                return Task.CompletedTask;
+
+            if (E.Type == GameEvent.EventType.Connect)
+            {
+                AuthorizedClients.TryAdd(E.Origin.ClientId, false);
+            }
+
+            if (E.Type == GameEvent.EventType.Disconnect)
+            {
+                AuthorizedClients.TryRemove(E.Origin.ClientId, out bool value);
+            }
+
+            if (E.Type == GameEvent.EventType.Command)
+            {
+                if (((Command)E.Extra).Name == new SharedLibraryCore.Commands.CSetPassword().Name &&
+                    E.Owner.Manager.GetPrivilegedClients()[E.Origin.ClientId].Password == null)
+                    return Task.CompletedTask;
+
+                if (((Command)E.Extra).Name == new Commands.CLogin().Name)
+                    return Task.CompletedTask;
+
+                if (!AuthorizedClients[E.Origin.ClientId])
+                    throw new AuthorizationException("not logged in");
+            }
+
+            return Task.CompletedTask;
+        }
+
+        public async Task OnLoadAsync(IManager manager)
+        {
+            AuthorizedClients = new ConcurrentDictionary<int, bool>();
+
+            var cfg = new BaseConfigurationHandler<Configuration>("LoginPluginSettings");
+            if (cfg.Configuration() == null)
+            {
+                cfg.Set((Configuration)new Configuration().Generate());
+                await cfg.Save();
+            }
+
+            Config = cfg.Configuration();
+        }
+
+        public Task OnTickAsync(Server S) => Utilities.CompletedTask;
+
+        public Task OnUnloadAsync()
+        {
+            AuthorizedClients.Clear();
+            return Utilities.CompletedTask;
+        }
+    }
+}