src/modules/m_chghost.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 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: Provides support for the CHGHOST command */
  17
  18 /** Handle /CHGHOST
  19  */
  20 class CommandChghost : public Command
  21 {
  22  private:
  23         char* hostmap;
  24  public:
  25         CommandChghost (InspIRCd* Instance, Module* Creator, char* hmap) : Command(Instance,Creator,"CHGHOST","o",2), hostmap(hmap)
  26         {
  27                 syntax = "<nick> <newhost>";
  28                 TRANSLATE3(TR_NICK, TR_TEXT, TR_END);
  29         }
  30
  31         CmdResult Handle(const std::vector<std::string> &parameters, User *user)
  32         {
  33                 const char * x = parameters[1].c_str();
  34
  35                 for (; *x; x++)
  36                 {
  37                         if (!hostmap[(unsigned char)*x])
  38                         {
  39                                 user->WriteServ("NOTICE "+std::string(user->nick)+" :*** CHGHOST: Invalid characters in hostname");
  40                                 return CMD_FAILURE;
  41                         }
  42                 }
  43                 if (parameters[1].empty())
  44                 {
  45                         user->WriteServ("NOTICE %s :*** CHGHOST: Host must be specified", user->nick.c_str());
  46                         return CMD_FAILURE;
  47                 }
  48
  49                 if ((parameters[1].c_str() - x) > 63)
  50                 {
  51                         user->WriteServ("NOTICE %s :*** CHGHOST: Host too long", user->nick.c_str());
  52                         return CMD_FAILURE;
  53                 }
  54                 User* dest = ServerInstance->FindNick(parameters[0]);
  55
  56                 if (!dest)
  57                 {
  58                         user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), parameters[0].c_str());
  59                         return CMD_FAILURE;
  60                 }
  61
  62                 if (IS_LOCAL(dest))
  63                 {
  64                         if ((dest->ChangeDisplayedHost(parameters[1].c_str())) && (!ServerInstance->ULine(user->server)))
  65                         {
  66                                 // fix by brain - ulines set hosts silently
  67                                 ServerInstance->SNO->WriteGlobalSno('a', std::string(user->nick)+" used CHGHOST to make the displayed host of "+dest->nick+" become "+dest->dhost);
  68                         }
  69
  70                         /* ChangeDisplayedHost fixes it for us */
  71                         return CMD_LOCALONLY;
  72                 }
  73
  74                 /* route it! */
  75                 return CMD_SUCCESS;
  76
  77         }
  78 };
  79
  80
  81 class ModuleChgHost : public Module
  82 {
  83         CommandChghost cmd;
  84         char hostmap[256];
  85  public:
  86         ModuleChgHost(InspIRCd* Me)
  87                 : Module(Me), cmd(Me, this, hostmap)
  88         {
  89                 OnRehash(NULL);
  90                 ServerInstance->AddCommand(&cmd);
  91                 Implementation eventlist[] = { I_OnRehash };
  92                 ServerInstance->Modules->Attach(eventlist, this, 1);
  93         }
  94
  95
  96         void OnRehash(User* user)
  97         {
  98                 ConfigReader Conf(ServerInstance);
  99                 std::string hmap = Conf.ReadValue("hostname", "charmap", 0);
 100
 101                 if (hmap.empty())
 102                         hmap = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-_/0123456789";
 103
 104                 memset(hostmap, 0, sizeof(hostmap));
 105                 for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
 106                         hostmap[(unsigned char)*n] = 1;
 107         }
 108
 109         ~ModuleChgHost()
 110         {
 111         }
 112
 113         Version GetVersion()
 114         {
 115                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
 116         }
 117
 118 };
 119
 120 MODULE_INIT(ModuleChgHost)