src/modules/m_nonicks.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 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 channel mode +N & extban +b N: which prevents nick changes on channel */
  17
  18 class NoNicks : public ModeHandler
  19 {
  20  public:
  21         NoNicks(InspIRCd* Instance) : ModeHandler(Instance, 'N', 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('N'))
  28                         {
  29                                 channel->SetMode('N',true);
  30                                 return MODEACTION_ALLOW;
  31                         }
  32                 }
  33                 else
  34                 {
  35                         if (channel->IsModeSet('N'))
  36                         {
  37                                 channel->SetMode('N',false);
  38                                 return MODEACTION_ALLOW;
  39                         }
  40                 }
  41
  42                 return MODEACTION_DENY;
  43         }
  44 };
  45
  46 class ModuleNoNickChange : public Module
  47 {
  48         NoNicks* nn;
  49  public:
  50         ModuleNoNickChange(InspIRCd* Me) : Module(Me)
  51         {
  52
  53                 nn = new NoNicks(ServerInstance);
  54                 ServerInstance->Modes->AddMode(nn);
  55                 Implementation eventlist[] = { I_OnUserPreNick, I_On005Numeric };
  56                 ServerInstance->Modules->Attach(eventlist, this, 2);
  57         }
  58
  59         virtual ~ModuleNoNickChange()
  60         {
  61                 ServerInstance->Modes->DelMode(nn);
  62                 delete nn;
  63         }
  64
  65         virtual Version GetVersion()
  66         {
  67                 return Version(1,2,0,1,VF_COMMON|VF_VENDOR,API_VERSION);
  68         }
  69
  70
  71         virtual void On005Numeric(std::string &output)
  72         {
  73                 ServerInstance->AddExtBanChar('N');
  74         }
  75
  76         virtual int OnUserPreNick(User* user, const std::string &newnick)
  77         {
  78                 if (!IS_LOCAL(user))
  79                         return 0;
  80
  81                 if (isdigit(newnick[0])) /* don't even think about touching a switch to uid! */
  82                         return 0;
  83
  84                 for (UCListIter i = user->chans.begin(); i != user->chans.end(); i++)
  85                 {
  86                         Channel* curr = i->first;
  87
  88                         if (curr->IsModeSet('N'))
  89                         {
  90                                 if (CHANOPS_EXEMPT(ServerInstance, 'N') && curr->GetStatus(user) == STATUS_OP)
  91                                         continue;
  92
  93                                 user->WriteNumeric(ERR_CANTCHANGENICK, "%s :Can't change nickname while on %s (+N is set)", user->nick.c_str(), curr->name.c_str());
  94                                 return 1;
  95                         }
  96
  97                         if (curr->IsExtBanned(user, 'N'))
  98                         {
  99                                 user->WriteNumeric(ERR_CANTCHANGENICK, "%s :Can't change nickname while on %s (+N is set)", user->nick.c_str(), curr->name.c_str());
 100                                 return 1;
 101                         }
 102                 }
 103
 104                 return 0;
 105         }
 106 };
 107
 108 MODULE_INIT(ModuleNoNickChange)