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                 if (parameters[1].length() > ServerInstance->Config->Limits.MaxHost)
  41                 {
  42                         user->WriteNotice("*** CHGHOST: Host too long");
  43                         return CMD_FAILURE;
  44                 }
  45
  46                 for (std::string::const_iterator x = parameters[1].begin(); x != parameters[1].end(); x++)
  47                 {
  48                         if (!hostmap[(unsigned char)*x])
  49                         {
  50                                 user->WriteNotice("*** CHGHOST: Invalid characters in hostname");
  51                                 return CMD_FAILURE;
  52                         }
  53                 }
  54
  55                 User* dest = ServerInstance->FindNick(parameters[0]);
  56
  57                 // Allow services to change the host of unregistered users
  58                 if ((!dest) || ((dest->registered != REG_ALL) && (!user->server->IsULine())))
  59                 {
  60                         user->WriteNumeric(Numerics::NoSuchNick(parameters[0]));
  61                         return CMD_FAILURE;
  62                 }
  63
  64                 if (IS_LOCAL(dest))
  65                 {
  66                         if ((dest->ChangeDisplayedHost(parameters[1])) && (!user->server->IsULine()))
  67                         {
  68                                 // fix by brain - ulines set hosts silently
  69                                 ServerInstance->SNO->WriteGlobalSno('a', user->nick+" used CHGHOST to make the displayed host of "+dest->nick+" become "+dest->dhost);
  70                         }
  71                 }
  72
  73                 return CMD_SUCCESS;
  74         }
  75
  76         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  77         {
  78                 return ROUTE_OPT_UCAST(parameters[0]);
  79         }
  80 };
  81
  82
  83 class ModuleChgHost : public Module
  84 {
  85         CommandChghost cmd;
  86         char hostmap[256];
  87
  88  public:
  89         ModuleChgHost() : cmd(this, hostmap)
  90         {
  91         }
  92
  93         void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
  94         {
  95                 std::string hmap = ServerInstance->Config->ConfValue("hostname")->getString("charmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-_/0123456789");
  96
  97                 memset(hostmap, 0, sizeof(hostmap));
  98                 for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
  99                         hostmap[(unsigned char)*n] = 1;
 100         }
 101
 102         Version GetVersion() CXX11_OVERRIDE
 103         {
 104                 return Version("Provides support for the CHGHOST command", VF_OPTCOMMON | VF_VENDOR);
 105         }
 106 };
 107
 108 MODULE_INIT(ModuleChgHost)