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(Module* Creator, char* hmap) : Command(Creator,"CHGHOST", 2), hostmap(hmap)
  26         {
  27                 flags_needed = 'o'; 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
  71                 return CMD_SUCCESS;
  72         }
  73
  74         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  75         {
  76                 User* dest = ServerInstance->FindNick(parameters[0]);
  77                 if (dest)
  78                         return ROUTE_OPT_UCAST(dest->server);
  79                 return ROUTE_LOCALONLY;
  80         }
  81 };
  82
  83
  84 class ModuleChgHost : public Module
  85 {
  86         CommandChghost cmd;
  87         char hostmap[256];
  88  public:
  89         ModuleChgHost() : cmd(this, hostmap)
  90         {
  91                 OnRehash(NULL);
  92                 ServerInstance->AddCommand(&cmd);
  93                 Implementation eventlist[] = { I_OnRehash };
  94                 ServerInstance->Modules->Attach(eventlist, this, 1);
  95         }
  96
  97
  98         void OnRehash(User* user)
  99         {
 100                 ConfigReader Conf;
 101                 std::string hmap = Conf.ReadValue("hostname", "charmap", 0);
 102
 103                 if (hmap.empty())
 104                         hmap = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-_/0123456789";
 105
 106                 memset(hostmap, 0, sizeof(hostmap));
 107                 for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
 108                         hostmap[(unsigned char)*n] = 1;
 109         }
 110
 111         ~ModuleChgHost()
 112         {
 113         }
 114
 115         Version GetVersion()
 116         {
 117                 return Version("Provides support for the CHGHOST command", VF_OPTCOMMON | VF_VENDOR, API_VERSION);
 118         }
 119
 120 };
 121
 122 MODULE_INIT(ModuleChgHost)