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() > ServerInstance->Config->Limits.MaxHost)
  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                 // Allow services to change the host of unregistered users
  60                 if ((!dest) || ((dest->registered != REG_ALL) && (!user->server->IsULine())))
  61                 {
  62                         user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", parameters[0].c_str());
  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->dhost);
  72                         }
  73                 }
  74
  75                 return CMD_SUCCESS;
  76         }
  77
  78         RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
  79         {
  80                 User* dest = ServerInstance->FindNick(parameters[0]);
  81                 if (dest)
  82                         return ROUTE_OPT_UCAST(dest->server);
  83                 return ROUTE_LOCALONLY;
  84         }
  85 };
  86
  87
  88 class ModuleChgHost : public Module
  89 {
  90         CommandChghost cmd;
  91         char hostmap[256];
  92
  93  public:
  94         ModuleChgHost() : cmd(this, hostmap)
  95         {
  96         }
  97
  98         void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
  99         {
 100                 std::string hmap = ServerInstance->Config->ConfValue("hostname")->getString("charmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-_/0123456789");
 101
 102                 memset(hostmap, 0, sizeof(hostmap));
 103                 for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
 104                         hostmap[(unsigned char)*n] = 1;
 105         }
 106
 107         Version GetVersion() CXX11_OVERRIDE
 108         {
 109                 return Version("Provides support for the CHGHOST command", VF_OPTCOMMON | VF_VENDOR);
 110         }
 111 };
 112
 113 MODULE_INIT(ModuleChgHost)