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://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
  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, char* hmap) : Command(Instance,"CHGHOST","o",2), hostmap(hmap)
  26         {
  27                 this->source = "m_chghost.so";
  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                 if (parameters[0].empty())
  45                 {
  46                         user->WriteServ("NOTICE %s :*** CHGHOST: Host must be specified", user->nick.c_str());
  47                         return CMD_FAILURE;
  48                 }
  49
  50                 if ((parameters[1].c_str() - x) > 63)
  51                 {
  52                         user->WriteServ("NOTICE %s :*** CHGHOST: Host too long", user->nick.c_str());
  53                         return CMD_FAILURE;
  54                 }
  55                 User* dest = ServerInstance->FindNick(parameters[0]);
  56
  57                 if (!dest)
  58                 {
  59                         user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), parameters[0].c_str());
  60                         return CMD_FAILURE;
  61                 }
  62
  63                 if (IS_LOCAL(dest))
  64                 {
  65                         if ((dest->ChangeDisplayedHost(parameters[1].c_str())) && (!ServerInstance->ULine(user->server)))
  66                         {
  67                                 // fix by brain - ulines set hosts silently
  68                                 ServerInstance->SNO->WriteToSnoMask('A', std::string(user->nick)+" used CHGHOST to make the displayed host of "+dest->nick+" become "+dest->dhost);
  69                         }
  70
  71                         /* ChangeDisplayedHost fixes it for us */
  72                         return CMD_LOCALONLY;
  73                 }
  74
  75                 /* route it! */
  76                 return CMD_SUCCESS;
  77
  78         }
  79 };
  80
  81
  82 class ModuleChgHost : public Module
  83 {
  84         CommandChghost* mycommand;
  85         char hostmap[256];
  86  public:
  87         ModuleChgHost(InspIRCd* Me)
  88                 : Module(Me)
  89         {
  90                 OnRehash(NULL,"");
  91                 mycommand = new CommandChghost(ServerInstance, hostmap);
  92                 ServerInstance->AddCommand(mycommand);
  93                 Implementation eventlist[] = { I_OnRehash };
  94                 ServerInstance->Modules->Attach(eventlist, this, 1);
  95         }
  96
  97
  98         void OnRehash(User* user, const std::string &parameter)
  99         {
 100                 ConfigReader Conf(ServerInstance);
 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("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
 118         }
 119
 120 };
 121
 122 MODULE_INIT(ModuleChgHost)