src/modules/m_noctcp.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 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
  16 /* $ModDesc: Provides support for unreal-style channel mode +C */
  17
  18 class NoCTCP : public ModeHandler
  19 {
  20  public:
  21         NoCTCP(InspIRCd* Instance) : ModeHandler(Instance, 'C', 0, 0, false, MODETYPE_CHANNEL, false) { }
  22
  23         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool)
  24         {
  25                 if (adding)
  26                 {
  27                         if (!channel->IsModeSet('C'))
  28                         {
  29                                 channel->SetMode('C',true);
  30                                 return MODEACTION_ALLOW;
  31                         }
  32                 }
  33                 else
  34                 {
  35                         if (channel->IsModeSet('C'))
  36                         {
  37                                 channel->SetMode('C',false);
  38                                 return MODEACTION_ALLOW;
  39                         }
  40                 }
  41
  42                 return MODEACTION_DENY;
  43         }
  44 };
  45
  46 class ModuleNoCTCP : public Module
  47 {
  48
  49         NoCTCP* nc;
  50
  51  public:
  52
  53         ModuleNoCTCP(InspIRCd* Me)
  54                 : Module(Me)
  55         {
  56
  57                 nc = new NoCTCP(ServerInstance);
  58                 if (!ServerInstance->Modes->AddMode(nc))
  59                         throw ModuleException("Could not add new modes!");
  60                 Implementation eventlist[] = { I_OnUserPreMessage, I_OnUserPreNotice, I_On005Numeric };
  61                 ServerInstance->Modules->Attach(eventlist, this, 2);
  62         }
  63
  64         virtual ~ModuleNoCTCP()
  65         {
  66                 ServerInstance->Modes->DelMode(nc);
  67                 delete nc;
  68         }
  69
  70         virtual Version GetVersion()
  71         {
  72                 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
  73         }
  74
  75         virtual int OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
  76         {
  77                 return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
  78         }
  79
  80         virtual int OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
  81         {
  82                 if ((target_type == TYPE_CHANNEL) && (IS_LOCAL(user)))
  83                 {
  84                         Channel* c = (Channel*)dest;
  85
  86                         if (CHANOPS_EXEMPT(ServerInstance, 'C') && c->GetStatus(user) == STATUS_OP)
  87                         {
  88                                 return 0;
  89                         }
  90
  91                         if (c->IsModeSet('C') || c->IsExtBanned(user, 'C'))
  92                         {
  93                                 if ((text.length()) && (text[0] == '\1'))
  94                                 {
  95                                         if (strncmp(text.c_str(),"\1ACTION ",8))
  96                                         {
  97                                                 user->WriteNumeric(ERR_NOCTCPALLOWED, "%s %s :Can't send CTCP to channel (+C set)",user->nick.c_str(), c->name.c_str());
  98                                                 return 1;
  99                                         }
 100                                 }
 101                         }
 102                 }
 103                 return 0;
 104         }
 105
 106         virtual void On005Numeric(std::string &output)
 107         {
 108                 ServerInstance->AddExtBanChar('C');
 109         }
 110 };
 111
 112 MODULE_INIT(ModuleNoCTCP)