src/modules/m_antibear.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/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 #include "users.h"
  16 #include "channels.h"
  17 #include "modules.h"
  18 #include "xline.h"
  19
  20 /* $ModDesc: Sends a numeric on connect which cripples a common type of trojan/spambot */
  21
  22 class ModuleAntiBear : public Module
  23 {
  24  private:
  25
  26  public:
  27         ModuleAntiBear(InspIRCd* Me) : Module(Me)
  28         {
  29
  30         }
  31
  32         virtual ~ModuleAntiBear()
  33         {
  34         }
  35
  36         virtual Version GetVersion()
  37         {
  38                 return Version(1,1,0,0,VF_VENDOR,API_VERSION);
  39         }
  40
  41         void Implements(char* List)
  42         {
  43                 List[I_OnUserRegister] = List[I_OnPreCommand] = 1;
  44         }
  45
  46         virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
  47         {
  48                 if (command == "NOTICE" && !validated && pcnt > 1 && user->GetExt("antibear_timewait"))
  49                 {
  50                         if (!strncmp(parameters[1], "\1TIME Mon May 01 18:54:20 2006", 30))
  51                         {
  52                                 if (ServerInstance->XLines->add_zline(86400, ServerInstance->Config->ServerName, "Unless you're stuck in a time warp, you appear to be a bear bot!", user->MakeHostIP()))
  53                                 {
  54                                         ServerInstance->XLines->apply_lines(APPLY_ZLINES);
  55                                         FOREACH_MOD(I_OnAddGLine,OnAddZLine(86400, NULL, "Unless you're stuck in a time warp, you appear to be a bear bot!", user->MakeHostIP()));
  56                                         return 1;
  57                                 }
  58                         }
  59
  60                         user->Shrink("antibear_timewait");
  61                         // Block the command, so the user doesn't receive a no such nick notice
  62                         return 1;
  63                 }
  64
  65                 return 0;
  66         }
  67
  68         virtual int OnUserRegister(userrec* user)
  69         {
  70                 user->WriteServ("439 %s :This server has anti-spambot mechanisms enabled.", user->nick);
  71                 user->WriteServ("931 %s :Malicious bots, spammers, and other automated systems of dubious origin are NOT welcome here.", user->nick);
  72                 user->WriteServ("PRIVMSG %s :\1TIME\1", user->nick);
  73                 user->Extend("antibear_timewait");
  74                 return 0;
  75         }
  76 };
  77
  78 MODULE_INIT(ModuleAntiBear)