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 = Srv->FindChannel(ChanToJoin);
  49                                 if (c)
  50                                 {
  51                                         /* Fix by brain: Dont let a channel be linked to *itself* either */
  52                                         if ((c == target) || (c->IsCustomModeSet('L')))
  53                                         {
  54                                                 WriteServ(user->fd,"690 %s :Circular redirection, mode +L to %s not allowed.",user->nick,params[0].c_str());
  55                                                 return 0;
  56                                         }
  57                                 }
  58                         }
  59                         return 1;
  60                 }
  61                 return 0;
  62         }
  63
  64         void Implements(char* List)
  65         {
  66                 List[I_On005Numeric] = List[I_OnUserPreJoin] = List[I_OnExtendedMode] = 1;
  67         }
  68
  69         virtual void On005Numeric(std::string &output)
  70         {
  71                 std::stringstream line(output);
  72                 std::string temp1, temp2;
  73                 while (!line.eof())
  74                 {
  75                         line >> temp1;
  76                         if (temp1.substr(0,10) == "CHANMODES=")
  77                         {
  78                                 // By doing this we're *assuming* no other module has fucked up the CHANMODES=
  79                                 // section of the 005 numeric. If they have, we're going DOWN in a blaze of glory,
  80                                 // with a honking great EXCEPTION :)
  81                                 temp1.insert(temp1.find(",")+1,"L");
  82                         }
  83                         temp2 = temp2 + temp1 + " ";
  84                 }
  85                 if (temp2.length())
  86                         output = temp2.substr(0,temp2.length()-1);
  87         }
  88
  89         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
  90         {
  91                 if (chan)
  92                 {
  93                         if (chan->IsCustomModeSet('L'))
  94                         {
  95                                 if (Srv->CountUsers(chan) >= chan->limit)
  96                                 {
  97                                         std::string channel = chan->GetModeParameter('L');
  98                                         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());
  99                                         Srv->JoinUserToChannel(user,channel.c_str(),"");
 100                                         return 1;
 101                                 }
 102                         }
 103                 }
 104                 return 0;
 105         }
 106
 107         virtual ~ModuleRedirect()
 108         {
 109         }
 110
 111         virtual Version GetVersion()
 112         {
 113                 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
 114         }
 115 };
 116
 117
 118 class ModuleRedirectFactory : public ModuleFactory
 119 {
 120  public:
 121         ModuleRedirectFactory()
 122         {
 123         }
 124
 125         ~ModuleRedirectFactory()
 126         {
 127         }
 128
 129         virtual Module * CreateModule(Server* Me)
 130         {
 131                 return new ModuleRedirect(Me);
 132         }
 133
 134 };
 135
 136
 137 extern "C" void * init_module( void )
 138 {
 139         return new ModuleRedirectFactory;
 140 }
 141