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  public:
  29         std::bitset<UCHAR_MAX> hostmap;
  30
  31         CommandChghost(Module* Creator)
  32                 : Command(Creator,"CHGHOST", 2)
  33         {
  34                 allow_empty_last_param = false;
  35                 flags_needed = 'o';
  36                 syntax = "<nick> <newhost>";
  37                 TRANSLATE2(TR_NICK, TR_TEXT);
  38         }
  39
  40         CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
  41         {
  42                 if (parameters[1].length() > ServerInstance->Config->Limits.MaxHost)
  43                 {
  44                         user->WriteNotice("*** CHGHOST: Host too long");
  45                         return CMD_FAILURE;
  46                 }
  47
  48                 for (std::string::const_iterator x = parameters[1].begin(); x != parameters[1].end(); x++)
  49                 {
  50                         if (!hostmap.test(static_cast<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                 // Allow services to change the host of unregistered users
  60                 if ((!dest) || ((dest->registered != REG_ALL) && (!user->server->IsULine())))
  61                 {
  62                         user->WriteNumeric(Numerics::NoSuchNick(parameters[0]));
  63                         return CMD_FAILURE;
  64                 }
  65
  66                 if (IS_LOCAL(dest))
  67                 {
  68                         if ((dest->ChangeDisplayedHost(parameters[1])) && (!user->server->IsULine()))
  69                         {
  70                                 // fix by brain - ulines set hosts silently
  71                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used CHGHOST to make the displayed host of "+dest->nick+" become "+dest->GetDisplayedHost());
  72                         }
  73                 }
  74
  75                 return CMD_SUCCESS;
  76         }
  77
  78         RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE
  79         {
  80                 return ROUTE_OPT_UCAST(parameters[0]);
  81         }
  82 };
  83
  84
  85 class ModuleChgHost : public Module
  86 {
  87         CommandChghost cmd;
  88
  89  public:
  90         ModuleChgHost()
  91                 : cmd(this)
  92         {
  93         }
  94
  95         void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
  96         {
  97                 std::string hmap = ServerInstance->Config->ConfValue("hostname")->getString("charmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-_/0123456789");
  98
  99                 cmd.hostmap.reset();
 100                 for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
 101                         cmd.hostmap.set(static_cast<unsigned char>(*n));
 102         }
 103
 104         Version GetVersion() CXX11_OVERRIDE
 105         {
 106                 return Version("Provides support for the CHGHOST command", VF_OPTCOMMON | VF_VENDOR);
 107         }
 108 };
 109
 110 MODULE_INIT(ModuleChgHost)