src/modules/m_chghost.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   5  *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
   6  *   Copyright (C) 2004-2006 Craig Edwards <craigedwards@brainbox.cc>
   7  *
   8  * This file is part of InspIRCd.  InspIRCd is free software: you can
   9  * redistribute it and/or modify it under the terms of the GNU General Public
  10  * License as published by the Free Software Foundation, version 2.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  15  * details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21
  22 #include "inspircd.h"
  23
  24 /** Handle /CHGHOST
  25  */
  26 class CommandChghost : public Command
  27 {
  28         char* hostmap;
  29  public:
  30         CommandChghost(Module* Creator, char* hmap) : Command(Creator,"CHGHOST", 2), hostmap(hmap)
  31         {
  32                 allow_empty_last_param = false;
  33                 flags_needed = 'o';
  34                 syntax = "<nick> <newhost>";
  35                 TRANSLATE2(TR_NICK, TR_TEXT);
  36         }
  37
  38         CmdResult Handle(const std::vector<std::string> &parameters, User *user)
  39         {
  40                 const char* x = parameters[1].c_str();
  41
  42                 if (parameters[1].length() > 63)
  43                 {
  44                         user->WriteNotice("*** CHGHOST: Host too long");
  45                         return CMD_FAILURE;
  46                 }
  47
  48                 for (; *x; x++)
  49                 {
  50                         if (!hostmap[(unsigned char)*x])
  51                         {
  52                                 user->WriteNotice("*** CHGHOST: Invalid characters in hostname");
  53                                 return CMD_FAILURE;
  54                         }
  55                 }
  56
  57                 User* dest = ServerInstance->FindNick(parameters[0]);
  58
  59                 if ((!dest) || (dest->registered != REG_ALL))
  60                 {
  61                         user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", parameters[0].c_str());
  62                         return CMD_FAILURE;
  63                 }
  64
  65                 if (IS_LOCAL(dest))
  66                 {
  67                         if ((dest->ChangeDisplayedHost(parameters[1])) && (!ServerInstance->ULine(user->server)))
  68                         {
  69                                 // fix by brain - ulines set hosts silently
  70                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used CHGHOST to make the displayed host of "+dest->nick+" become "+dest->dhost);
  71                         }
  72                 }
  73
  74                 return CMD_SUCCESS;
  75         }
  76
  77         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  78         {
  79                 User* dest = ServerInstance->FindNick(parameters[0]);
  80                 if (dest)
  81                         return ROUTE_OPT_UCAST(dest->server);
  82                 return ROUTE_LOCALONLY;
  83         }
  84 };
  85
  86
  87 class ModuleChgHost : public Module
  88 {
  89         CommandChghost cmd;
  90         char hostmap[256];
  91
  92  public:
  93         ModuleChgHost() : cmd(this, hostmap)
  94         {
  95         }
  96
  97         void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
  98         {
  99                 std::string hmap = ServerInstance->Config->ConfValue("hostname")->getString("charmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-_/0123456789");
 100
 101                 memset(hostmap, 0, sizeof(hostmap));
 102                 for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
 103                         hostmap[(unsigned char)*n] = 1;
 104         }
 105
 106         Version GetVersion() CXX11_OVERRIDE
 107         {
 108                 return Version("Provides support for the CHGHOST command", VF_OPTCOMMON | VF_VENDOR);
 109         }
 110 };
 111
 112 MODULE_INIT(ModuleChgHost)