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