Core/Protocol:

- Allow CMSG_LOGOUT_CANCEL to be recieved during serverside logout process (ignore it however, it's too late to abort)
- Fix STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT opcodes because of m_playerRecentlyLogout being set false too early in some cases

src/server/game/Handlers/MiscHandler.cpp

@@ -430,6 +430,10 @@ void WorldSession::HandleLogoutCancelOpcode(WorldPacket & /*recv_data*/)
 {
     sLog->outDebug(LOG_FILTER_NETWORKIO, "WORLD: Recvd CMSG_LOGOUT_CANCEL Message");
 
+    // Player have already logged out serverside, too late to cancel
+    if (!GetPlayer())
+        return;
+
     LogoutRequest(0);
 
     WorldPacket data(SMSG_LOGOUT_CANCEL_ACK, 0);

src/server/game/Server/Protocol/Opcodes.cpp

@@ -104,7 +104,7 @@ OpcodeHandler opcodeTable[NUM_MSG_TYPES] =
     /*0x04B*/ { "CMSG_LOGOUT_REQUEST",                          STATUS_LOGGEDIN, PROCESS_THREADUNSAFE, &WorldSession::HandleLogoutRequestOpcode       },
     /*0x04C*/ { "SMSG_LOGOUT_RESPONSE",                         STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               },
     /*0x04D*/ { "SMSG_LOGOUT_COMPLETE",                         STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               },
-    /*0x04E*/ { "CMSG_LOGOUT_CANCEL",                           STATUS_LOGGEDIN, PROCESS_THREADUNSAFE, &WorldSession::HandleLogoutCancelOpcode        },
+    /*0x04E*/ { "CMSG_LOGOUT_CANCEL",                           STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT, PROCESS_THREADUNSAFE, &WorldSession::HandleLogoutCancelOpcode },
     /*0x04F*/ { "SMSG_LOGOUT_CANCEL_ACK",                       STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               },
     /*0x050*/ { "CMSG_NAME_QUERY",                              STATUS_LOGGEDIN, PROCESS_THREADUNSAFE, &WorldSession::HandleNameQueryOpcode           },
     /*0x051*/ { "SMSG_NAME_QUERY_RESPONSE",                     STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               },

src/server/game/Server/WorldSession.cpp

@@ -323,9 +323,9 @@ bool WorldSession::Update(uint32 diff, PacketFilter& updater)
                             break;
                         }
 
-                        // single from authed time opcodes send in to after logout time
+                        // some auth opcodes can be recieved before STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT opcodes
-                        // and before other STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT opcodes.
+                        // however when we recieve CMSG_CHAR_ENUM we are surely no longer during the logout process.
-                        if (packet->GetOpcode() != CMSG_SET_ACTIVE_VOICE_CHANNEL)
+                        if (packet->GetOpcode() == CMSG_CHAR_ENUM)
                             m_playerRecentlyLogout = false;
 
                         sScriptMgr->OnPacketReceive(m_Socket, WorldPacket(*packet));