src/modules/m_hostchange.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include <stdio.h>
  20 #include "users.h"
  21 #include "channels.h"
  22 #include "modules.h"
  23 #include "inspircd.h"
  24
  25 /* $ModDesc: Provides masking of user hostnames in a different way to m_cloaking */
  26
  27 /** Holds information on a host set by m_hostchange
  28  */
  29 class Host : public classbase
  30 {
  31  public:
  32         std::string action;
  33         std::string newhost;
  34 };
  35
  36 typedef std::map<std::string,Host*> hostchanges_t;
  37
  38 class ModuleHostChange : public Module
  39 {
  40  private:
  41
  42
  43         ConfigReader *Conf;
  44         hostchanges_t hostchanges;
  45         std::string MySuffix;
  46
  47  public:
  48         ModuleHostChange(InspIRCd* Me)
  49                 : Module::Module(Me)
  50         {
  51
  52                 Conf = new ConfigReader(ServerInstance);
  53                 OnRehash("");
  54         }
  55
  56         virtual ~ModuleHostChange()
  57         {
  58                 DELETE(Conf);
  59         }
  60
  61         Priority Prioritize()
  62         {
  63                 return (Priority)ServerInstance->PriorityAfter("m_cloaking.so");
  64         }
  65
  66         void Implements(char* List)
  67         {
  68                 List[I_OnRehash] = List[I_OnUserConnect] = 1;
  69         }
  70
  71         virtual void OnRehash(const std::string &parameter)
  72         {
  73                 DELETE(Conf);
  74                 Conf = new ConfigReader(ServerInstance);
  75                 MySuffix = Conf->ReadValue("host","suffix",0);
  76                 for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
  77                 {
  78                         DELETE(i->second);
  79                 }
  80                 hostchanges.clear();
  81                 for (int index = 0; index < Conf->Enumerate("hostchange"); index++)
  82                 {
  83                         std::string mask = Conf->ReadValue("hostchange","mask",index);
  84                         std::string action = Conf->ReadValue("hostchange","action",index);
  85                         std::string newhost = Conf->ReadValue("hostchange","value",index);
  86                         Host* x = new Host;
  87                         x->action = action;
  88                         x->newhost = newhost;
  89                         hostchanges[mask] = x;
  90                 }
  91         }
  92
  93         virtual Version GetVersion()
  94         {
  95                 // returns the version number of the module to be
  96                 // listed in /MODULES
  97                 return Version(1,0,0,1,VF_VENDOR);
  98         }
  99
 100         virtual void OnUserConnect(userrec* user)
 101         {
 102                 for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
 103                 {
 104                         if (ServerInstance->MatchText(std::string(user->ident)+"@"+std::string(user->host),i->first))
 105                         {
 106                                 Host* h = (Host*)i->second;
 107                                 // host of new user matches a hostchange tag's mask
 108                                 std::string newhost = "";
 109                                 if (h->action == "set")
 110                                 {
 111                                         newhost = h->newhost;
 112                                 }
 113                                 else if (h->action == "suffix")
 114                                 {
 115                                         newhost = MySuffix;
 116                                 }
 117                                 else if (h->action == "addnick")
 118                                 {
 119                                         // first take their nick and strip out non-dns, leaving just [A-Z0-9\-]
 120                                         std::string complete = "";
 121                                         std::string old = user->nick;
 122                                         for (unsigned int j = 0; j < old.length(); j++)
 123                                         {
 124                                                 if  (((old[j] >= 'A') && (old[j] <= 'Z')) ||
 125                                                     ((old[j] >= 'a') && (old[j] <= 'z')) ||
 126                                                     ((old[j] >= '0') && (old[j] <= '9')) ||
 127                                                     (old[j] == '-'))
 128                                                 {
 129                                                         complete = complete + old[j];
 130                                                 }
 131                                         }
 132                                         if (complete == "")
 133                                                 complete = "i-have-a-lame-nick";
 134                                         newhost = complete + "." + MySuffix;
 135                                 }
 136                                 if (newhost != "")
 137                                 {
 138                                         user->WriteServ("NOTICE "+std::string(user->nick)+" :Setting your virtual host: " + newhost);
 139                                         if (!user->ChangeDisplayedHost(newhost.c_str()))
 140                                                 user->WriteServ("NOTICE "+std::string(user->nick)+" :Could not set your virtual host: " + newhost);
 141                                         return;
 142                                 }
 143                         }
 144                 }
 145         }
 146 };
 147
 148 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
 149
 150 class ModuleHostChangeFactory : public ModuleFactory
 151 {
 152  public:
 153         ModuleHostChangeFactory()
 154         {
 155         }
 156
 157         ~ModuleHostChangeFactory()
 158         {
 159         }
 160
 161         virtual Module * CreateModule(InspIRCd* Me)
 162         {
 163                 return new ModuleHostChange(Me);
 164         }
 165
 166 };
 167
 168
 169 extern "C" void * init_module( void )
 170 {
 171         return new ModuleHostChangeFactory;
 172 }
 173