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://wiki.inspircd.org/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(Module* Creator) : ModeHandler(Creator, 'C', PARAM_NONE, MODETYPE_CHANNEL) { }
  22
  23         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
  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()
  54                 : nc(this)
  55         {
  56                 if (!ServerInstance->Modes->AddMode(&nc))
  57                         throw ModuleException("Could not add new modes!");
  58                 Implementation eventlist[] = { I_OnUserPreMessage, I_OnUserPreNotice, I_On005Numeric };
  59                 ServerInstance->Modules->Attach(eventlist, this, 3);
  60         }
  61
  62         virtual ~ModuleNoCTCP()
  63         {
  64                 ServerInstance->Modes->DelMode(&nc);
  65         }
  66
  67         virtual Version GetVersion()
  68         {
  69                 return Version("Provides support for unreal-style channel mode +C", VF_COMMON | VF_VENDOR, API_VERSION);
  70         }
  71
  72         virtual ModResult OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
  73         {
  74                 return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
  75         }
  76
  77         virtual ModResult OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
  78         {
  79                 if ((target_type == TYPE_CHANNEL) && (IS_LOCAL(user)))
  80                 {
  81                         Channel* c = (Channel*)dest;
  82
  83                         if (CHANOPS_EXEMPT('C') && c->GetPrefixValue(user) == OP_VALUE)
  84                         {
  85                                 return MOD_RES_PASSTHRU;
  86                         }
  87
  88                         if (!c->GetExtBanStatus(user, 'C').check(!c->IsModeSet('C')))
  89                         {
  90                                 if ((text.length()) && (text[0] == '\1'))
  91                                 {
  92                                         if (strncmp(text.c_str(),"\1ACTION ",8))
  93                                         {
  94                                                 user->WriteNumeric(ERR_NOCTCPALLOWED, "%s %s :Can't send CTCP to channel (+C set)",user->nick.c_str(), c->name.c_str());
  95                                                 return MOD_RES_DENY;
  96                                         }
  97                                 }
  98                         }
  99                 }
 100                 return MOD_RES_PASSTHRU;
 101         }
 102
 103         virtual void On005Numeric(std::string &output)
 104         {
 105                 ServerInstance->AddExtBanChar('C');
 106         }
 107 };
 108
 109 MODULE_INIT(ModuleNoCTCP)