src/modules/m_redirect.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 "helperfuncs.h"
  24
  25 /* $ModDesc: Provides channel mode +L (limit redirection) */
  26
  27
  28 class ModuleRedirect : public Module
  29 {
  30         Server *Srv;
  31
  32  public:
  33
  34         ModuleRedirect(Server* Me)
  35                 : Module::Module(Me)
  36         {
  37                 Srv = Me;
  38                 Srv->AddExtendedMode('L',MT_CHANNEL,false,1,0);
  39         }
  40
  41         virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
  42         {
  43                 if ((modechar == 'L') && (type == MT_CHANNEL))
  44                 {
  45                         if (mode_on)
  46                         {
  47                                 std::string ChanToJoin = params[0];
  48                                 chanrec *c;
  49
  50                                 if (!IsValidChannelName(ChanToJoin.c_str()))
  51                                 {
  52                                         WriteServ(user->fd,"403 %s %s :Invalid channel name",user->nick, ChanToJoin.c_str());
  53                                         return 0;
  54                                 }
  55
  56                                 c = Srv->FindChannel(ChanToJoin);
  57                                 if (c)
  58                                 {
  59                                         /* Fix by brain: Dont let a channel be linked to *itself* either */
  60                                         if ((c == target) || (c->IsCustomModeSet('L')))
  61                                         {
  62                                                 WriteServ(user->fd,"690 %s :Circular redirection, mode +L to %s not allowed.",user->nick,params[0].c_str());
  63                                                 return 0;
  64                                         }
  65                                 }
  66                         }
  67                         return 1;
  68                 }
  69                 return 0;
  70         }
  71
  72         void Implements(char* List)
  73         {
  74                 List[I_On005Numeric] = List[I_OnUserPreJoin] = List[I_OnExtendedMode] = 1;
  75         }
  76
  77         virtual void On005Numeric(std::string &output)
  78         {
  79                 InsertMode(output, "L", 3);
  80         }
  81
  82         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
  83         {
  84                 if (chan)
  85                 {
  86                         if (chan->IsCustomModeSet('L'))
  87                         {
  88                                 if (Srv->CountUsers(chan) >= chan->limit)
  89                                 {
  90                                         std::string channel = chan->GetModeParameter('L');
  91                                         WriteServ(user->fd,"470 %s :%s has become full, so you are automatically being transferred to the linked channel %s",user->nick,cname,channel.c_str());
  92                                         Srv->JoinUserToChannel(user,channel.c_str(),"");
  93                                         return 1;
  94                                 }
  95                         }
  96                 }
  97                 return 0;
  98         }
  99
 100         virtual ~ModuleRedirect()
 101         {
 102         }
 103
 104         virtual Version GetVersion()
 105         {
 106                 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
 107         }
 108 };
 109
 110
 111 class ModuleRedirectFactory : public ModuleFactory
 112 {
 113  public:
 114         ModuleRedirectFactory()
 115         {
 116         }
 117
 118         ~ModuleRedirectFactory()
 119         {
 120         }
 121
 122         virtual Module * CreateModule(Server* Me)
 123         {
 124                 return new ModuleRedirect(Me);
 125         }
 126
 127 };
 128
 129
 130 extern "C" void * init_module( void )
 131 {
 132         return new ModuleRedirectFactory;
 133 }
 134