src/modules/m_hostchange.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include <stdio.h>
  15 #include "users.h"
  16 #include "channels.h"
  17 #include "modules.h"
  18 #include "inspircd.h"
  19
  20 /* $ModDesc: Provides masking of user hostnames in a different way to m_cloaking */
  21
  22 /** Holds information on a host set by m_hostchange
  23  */
  24 class Host : public classbase
  25 {
  26  public:
  27         std::string action;
  28         std::string newhost;
  29 };
  30
  31 typedef std::map<std::string,Host*> hostchanges_t;
  32
  33 class ModuleHostChange : public Module
  34 {
  35  private:
  36
  37
  38         ConfigReader *Conf;
  39         hostchanges_t hostchanges;
  40         std::string MySuffix;
  41
  42  public:
  43         ModuleHostChange(InspIRCd* Me)
  44                 : Module::Module(Me)
  45         {
  46
  47                 Conf = new ConfigReader(ServerInstance);
  48                 OnRehash("");
  49         }
  50
  51         virtual ~ModuleHostChange()
  52         {
  53                 DELETE(Conf);
  54         }
  55
  56         Priority Prioritize()
  57         {
  58                 return (Priority)ServerInstance->PriorityAfter("m_cloaking.so");
  59         }
  60
  61         void Implements(char* List)
  62         {
  63                 List[I_OnRehash] = List[I_OnUserConnect] = 1;
  64         }
  65
  66         virtual void OnRehash(const std::string &parameter)
  67         {
  68                 DELETE(Conf);
  69                 Conf = new ConfigReader(ServerInstance);
  70                 MySuffix = Conf->ReadValue("host","suffix",0);
  71                 for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
  72                 {
  73                         DELETE(i->second);
  74                 }
  75                 hostchanges.clear();
  76                 for (int index = 0; index < Conf->Enumerate("hostchange"); index++)
  77                 {
  78                         std::string mask = Conf->ReadValue("hostchange","mask",index);
  79                         std::string action = Conf->ReadValue("hostchange","action",index);
  80                         std::string newhost = Conf->ReadValue("hostchange","value",index);
  81                         Host* x = new Host;
  82                         x->action = action;
  83                         x->newhost = newhost;
  84                         hostchanges[mask] = x;
  85                 }
  86         }
  87
  88         virtual Version GetVersion()
  89         {
  90                 // returns the version number of the module to be
  91                 // listed in /MODULES
  92                 return Version(1,1,0,1,VF_VENDOR,API_VERSION);
  93         }
  94
  95         virtual void OnUserConnect(userrec* user)
  96         {
  97                 for (hostchanges_t::iterator i = hostchanges.begin(); i != hostchanges.end(); i++)
  98                 {
  99                         if (ServerInstance->MatchText(std::string(user->ident)+"@"+std::string(user->host),i->first))
 100                         {
 101                                 Host* h = (Host*)i->second;
 102                                 // host of new user matches a hostchange tag's mask
 103                                 std::string newhost = "";
 104                                 if (h->action == "set")
 105                                 {
 106                                         newhost = h->newhost;
 107                                 }
 108                                 else if (h->action == "suffix")
 109                                 {
 110                                         newhost = MySuffix;
 111                                 }
 112                                 else if (h->action == "addnick")
 113                                 {
 114                                         // first take their nick and strip out non-dns, leaving just [A-Z0-9\-]
 115                                         std::string complete = "";
 116                                         std::string old = user->nick;
 117                                         for (unsigned int j = 0; j < old.length(); j++)
 118                                         {
 119                                                 if  (((old[j] >= 'A') && (old[j] <= 'Z')) ||
 120                                                     ((old[j] >= 'a') && (old[j] <= 'z')) ||
 121                                                     ((old[j] >= '0') && (old[j] <= '9')) ||
 122                                                     (old[j] == '-'))
 123                                                 {
 124                                                         complete = complete + old[j];
 125                                                 }
 126                                         }
 127                                         if (complete == "")
 128                                                 complete = "i-have-a-lame-nick";
 129                                         newhost = complete + "." + MySuffix;
 130                                 }
 131                                 if (newhost != "")
 132                                 {
 133                                         user->WriteServ("NOTICE "+std::string(user->nick)+" :Setting your virtual host: " + newhost);
 134                                         if (!user->ChangeDisplayedHost(newhost.c_str()))
 135                                                 user->WriteServ("NOTICE "+std::string(user->nick)+" :Could not set your virtual host: " + newhost);
 136                                         return;
 137                                 }
 138                         }
 139                 }
 140         }
 141 };
 142
 143 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
 144
 145 class ModuleHostChangeFactory : public ModuleFactory
 146 {
 147  public:
 148         ModuleHostChangeFactory()
 149         {
 150         }
 151
 152         ~ModuleHostChangeFactory()
 153         {
 154         }
 155
 156         virtual Module * CreateModule(InspIRCd* Me)
 157         {
 158                 return new ModuleHostChange(Me);
 159         }
 160
 161 };
 162
 163
 164 extern "C" void * init_module( void )
 165 {
 166         return new ModuleHostChangeFactory;
 167 }
 168