Do some cleanup (remove unneeded, old client-server-stuff), another update of .gitignore

ServerLib/SessionControl.cs

@@ -0,0 +1,79 @@
+#region license
+// This file is part of Vocaluxe.
+// 
+// Vocaluxe is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// Vocaluxe is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with Vocaluxe. If not, see <http://www.gnu.org/licenses/>.
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace ServerLib
+{
+    static class CSessionControl
+    {
+        private static readonly Dictionary<Guid, CSession> _ActiveSessions = new Dictionary<Guid, CSession>();
+
+        public static Guid OpenSession(string userName, string password)
+        {
+            if (!_ValidateUserAndPassword(userName, password))
+                return Guid.Empty;
+
+            Guid newId = Guid.NewGuid();
+            int id = _GetProfileIdFormUsername(userName);
+            EUserRoles roles = _GetUserRoles(id);
+            CSession session = new CSession(newId, id, roles);
+            InvalidateSessions(id);
+            _ActiveSessions.Add(newId, session);
+
+            return newId;
+        }
+
+        private static bool _ValidateUserAndPassword(string userName, string password)
+        {
+            return CServer.ValidatePassword(_GetProfileIdFormUsername(userName), password);
+        }
+
+        private static int _GetProfileIdFormUsername(string username)
+        {
+            return CServer.GetUserIdFromUsername(username);
+        }
+
+        private static EUserRoles _GetUserRoles(int profileId)
+        {
+            return (EUserRoles)CServer.GetUserRole(profileId);
+        }
+
+        internal static void InvalidateSessions(int profileId)
+        {
+            foreach (KeyValuePair<Guid, CSession> s in (from kv in _ActiveSessions
+                                                        where kv.Value.ProfileId == profileId
+                                                        select kv).ToList())
+                _ActiveSessions.Remove(s.Key);
+        }
+
+        internal static bool RequestRight(Guid sessionId, EUserRights requestedRight)
+        {
+            return ((CUserRoleControl.GetUserRightsFromUserRole(_ActiveSessions[sessionId].Roles)
+                                     .HasFlag(requestedRight)));
+        }
+
+        internal static int GetUserIdFromSession(Guid sessionId)
+        {
+            if (!_ActiveSessions.ContainsKey(sessionId))
+                return -1;
+            return _ActiveSessions[sessionId].ProfileId;
+        }
+    }
+}