Based DCC connection state on realname instead of nickname and realname

DCC.py

@@ -153,6 +153,7 @@ class DCC(threading.Thread):
             self.conn.recv(4) #The client send a confirmation after each packet
             d = f.read(268435456) #Packets size: 256Mo
     else:
+      if not self.connected:
         self.request_user()
 
       #Start by sending all queued messages
@@ -179,11 +180,8 @@ class DCC(threading.Thread):
               if name not in self.srv.dcc_clients:
                 del self.srv.dcc_clients[self.sender]
                 self.nick = name
-                if len(self.sender.split("!")) > 1:
-                  self.sender = self.nick + "!" + self.sender.split("!")[1]
-                else:
-                  self.sender = self.nick
-                self.srv.dcc_clients[self.sender] = self
+                self.sender = self.nick + "!" + self.realname
+                self.srv.dcc_clients[self.realname] = self
                 self.send_dcc("Hi " + self.nick)
               else:
                 self.send_dcc("This nickname is already in use, please choose another one.")

message.py

@@ -51,6 +51,7 @@ class Message:
         self.realname = (self.sender.split('!'))[1]
       else:
         self.realname = self.nick
+        self.sender = self.nick + "!" + self.realname
 
       if len(words) > 2:
         self.channel = words[2].decode()

server.py

@@ -106,10 +106,11 @@ class Server(threading.Thread):
     def send_dcc(self, msg, to):
       """Send a message through DCC connection"""
       if msg is not None and to is not None:
+        realname = to.split("!")[1]
         if to not in self.dcc_clients.keys():
-          d = dcc.DCC(self, to)
-          self.dcc_clients[to] = d
-        self.dcc_clients[to].send_dcc(msg)
+          d = dcc.DCC(self, realname)
+          self.dcc_clients[realname] = d
+        self.dcc_clients[realname].send_dcc(msg)
 
 
     def send_msg_final(self, channel, msg, cmd = "PRIVMSG", endl = "\r\n"):
@@ -131,7 +132,8 @@ class Server(threading.Thread):
 
     def send_msg_usr(self, user, msg):
         if user is not None and user[0] != "#":
-            if user in self.dcc_clients:
+            realname = to.split("!")[1]
+            if realname in self.dcc_clients:
                 self.send_dcc(msg, user)
             else:
                 self.send_msg_final(user.split('!')[0], msg)