src/modules/m_conn_waitpong.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "inspircd.h"
  15
  16 /* $ModDesc: Forces connecting clients to send a PONG message back to the server before they can complete their connection */
  17
  18 class ModuleWaitPong : public Module
  19 {
  20         bool sendsnotice;
  21         bool killonbadreply;
  22         LocalStringExt ext;
  23
  24  public:
  25         ModuleWaitPong()
  26          : ext("waitpong_pingstr", this)
  27         {
  28                 ServerInstance->Modules->AddService(ext);
  29                 OnRehash(NULL);
  30                 Implementation eventlist[] = { I_OnUserRegister, I_OnCheckReady, I_OnPreCommand, I_OnRehash };
  31                 ServerInstance->Modules->Attach(eventlist, this, 4);
  32         }
  33
  34         void OnRehash(User* user)
  35         {
  36                 ConfigReader Conf;
  37
  38                 sendsnotice = Conf.ReadFlag("waitpong", "sendsnotice", 0);
  39
  40                 if(Conf.GetError() == CONF_VALUE_NOT_FOUND)
  41                         sendsnotice = true;
  42
  43                 killonbadreply = Conf.ReadFlag("waitpong", "killonbadreply", 0);
  44
  45                 if(Conf.GetError() == CONF_VALUE_NOT_FOUND)
  46                         killonbadreply = true;
  47         }
  48
  49         ModResult OnUserRegister(LocalUser* user)
  50         {
  51                 std::string pingrpl = ServerInstance->GenRandomStr(10);
  52
  53                 user->Write("PING :%s", pingrpl.c_str());
  54
  55                 if(sendsnotice)
  56                         user->WriteServ("NOTICE %s :*** If you are having problems connecting due to ping timeouts, please type /quote PONG %s or /raw PONG %s now.", user->nick.c_str(), pingrpl.c_str(), pingrpl.c_str());
  57
  58                 ext.set(user, pingrpl);
  59                 return MOD_RES_PASSTHRU;
  60         }
  61
  62         ModResult OnPreCommand(std::string &command, std::vector<std::string> &parameters, LocalUser* user, bool validated, const std::string &original_line)
  63         {
  64                 if (command == "PONG")
  65                 {
  66                         std::string* pingrpl = ext.get(user);
  67
  68                         if (pingrpl)
  69                         {
  70                                 if (!parameters.empty() && *pingrpl == parameters[0])
  71                                 {
  72                                         ext.unset(user);
  73                                         return MOD_RES_DENY;
  74                                 }
  75                                 else
  76                                 {
  77                                         if(killonbadreply)
  78                                                 ServerInstance->Users->QuitUser(user, "Incorrect ping reply for registration");
  79                                         return MOD_RES_DENY;
  80                                 }
  81                         }
  82                 }
  83                 return MOD_RES_PASSTHRU;
  84         }
  85
  86         ModResult OnCheckReady(LocalUser* user)
  87         {
  88                 return ext.get(user) ? MOD_RES_DENY : MOD_RES_PASSTHRU;
  89         }
  90
  91         ~ModuleWaitPong()
  92         {
  93         }
  94
  95         Version GetVersion()
  96         {
  97                 return Version("Require pong prior to registration", VF_VENDOR);
  98         }
  99
 100 };
 101
 102 MODULE_INIT(ModuleWaitPong)