src/userprocess.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
   6  *   Copyright (C) 2005-2007 Craig Edwards <craigedwards@brainbox.cc>
   7  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   8  *   Copyright (C) 2006 Craig McLure <craig@chatspike.net>
   9  *
  10  * This file is part of InspIRCd.  InspIRCd is free software: you can
  11  * redistribute it and/or modify it under the terms of the GNU General Public
  12  * License as published by the Free Software Foundation, version 2.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  16  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23
  24 /* $Core */
  25
  26 #include "inspircd.h"
  27 #include "xline.h"
  28 #include "socketengine.h"
  29 #include "command_parse.h"
  30
  31 void FloodQuitUserHandler::Call(User* current)
  32 {
  33         ServerInstance->Logs->Log("USERS",DEFAULT,"Excess flood from: %s@%s", current->ident.c_str(), current->host.c_str());
  34         ServerInstance->SNO->WriteToSnoMask('f',"Excess flood from: %s%s%s@%s",
  35                         current->registered == REG_ALL ? current->nick.c_str() : "",
  36                         current->registered == REG_ALL ? "!" : "", current->ident.c_str(), current->host.c_str());
  37         ServerInstance->Users->QuitUser(current, "Excess flood");
  38
  39         if (current->registered != REG_ALL)
  40         {
  41                 ZLine* zl = new ZLine(ServerInstance->Time(), 0, ServerInstance->Config->ServerName, "Flood from unregistered connection", current->GetIPString());
  42                 if (ServerInstance->XLines->AddLine(zl,NULL))
  43                         ServerInstance->XLines->ApplyLines();
  44                 else
  45                         delete zl;
  46         }
  47 }
  48
  49 /**
  50  * This function is called once a second from the mainloop.
  51  * It is intended to do background checking on all the user structs, e.g.
  52  * stuff like ping checks, registration timeouts, etc.
  53  */
  54 void InspIRCd::DoBackgroundUserStuff()
  55 {
  56         /*
  57          * loop over all local users..
  58          */
  59         LocalUserList::reverse_iterator count2 = this->Users->local_users.rbegin();
  60         while (count2 != this->Users->local_users.rend())
  61         {
  62                 LocalUser *curr = *count2;
  63                 count2++;
  64
  65                 if (curr->quitting)
  66                         continue;
  67
  68                 if (curr->CommandFloodPenalty || curr->eh.getSendQSize())
  69                 {
  70                         unsigned int rate = curr->MyClass->GetCommandRate();
  71                         if (curr->CommandFloodPenalty > rate)
  72                                 curr->CommandFloodPenalty -= rate;
  73                         else
  74                                 curr->CommandFloodPenalty = 0;
  75                         curr->eh.OnDataReady();
  76                 }
  77
  78                 switch (curr->registered)
  79                 {
  80                         case REG_ALL:
  81                                 if (Time() > curr->nping)
  82                                 {
  83                                         // This user didn't answer the last ping, remove them
  84                                         if (!curr->lastping)
  85                                         {
  86                                                 time_t time = this->Time() - (curr->nping - curr->MyClass->GetPingTime());
  87                                                 char message[MAXBUF];
  88                                                 snprintf(message, MAXBUF, "Ping timeout: %ld second%s", (long)time, time > 1 ? "s" : "");
  89                                                 curr->lastping = 1;
  90                                                 curr->nping = Time() + curr->MyClass->GetPingTime();
  91                                                 this->Users->QuitUser(curr, message);
  92                                                 continue;
  93                                         }
  94
  95                                         curr->Write("PING :%s",this->Config->ServerName.c_str());
  96                                         curr->lastping = 0;
  97                                         curr->nping = Time()  +curr->MyClass->GetPingTime();
  98                                 }
  99                                 break;
 100                         case REG_NICKUSER:
 101                                 if (AllModulesReportReady(curr) && curr->dns_done)
 102                                 {
 103                                         /* User has sent NICK/USER, modules are okay, DNS finished. */
 104                                         curr->FullConnect();
 105                                         continue;
 106                                 }
 107
 108                                 // If the user has been quit in OnCheckReady then we shouldn't
 109                                 // quit them again for having a registration timeout.
 110                                 if (curr->quitting)
 111                                         continue;
 112                                 break;
 113                 }
 114
 115                 if (curr->registered != REG_ALL && curr->MyClass && (Time() > (curr->signon + curr->MyClass->GetRegTimeout())))
 116                 {
 117                         /*
 118                          * registration timeout -- didnt send USER/NICK/HOST
 119                          * in the time specified in their connection class.
 120                          */
 121                         this->Users->QuitUser(curr, "Registration timeout");
 122                         continue;
 123                 }
 124         }
 125 }
 126