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