src/modules/m_kicknorejoin.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
   6  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   7  *   Copyright (C) 2006-2007 Robin Burchell <robin+git@viroteck.net>
   8  *   Copyright (C) 2006 John Brooks <john.brooks@dereferenced.net>
   9  *   Copyright (C) 2006 Craig Edwards <craigedwards@brainbox.cc>
  10  *   Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
  11  *
  12  * This file is part of InspIRCd.  InspIRCd is free software: you can
  13  * redistribute it and/or modify it under the terms of the GNU General Public
  14  * License as published by the Free Software Foundation, version 2.
  15  *
  16  * This program is distributed in the hope that it will be useful, but WITHOUT
  17  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  18  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  19  * details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25
  26 #include "inspircd.h"
  27
  28 /* $ModDesc: Provides channel mode +J (delay rejoin after kick) */
  29
  30 typedef std::map<std::string, time_t> delaylist;
  31
  32 /** Handles channel mode +J
  33  */
  34 class KickRejoin : public ModeHandler
  35 {
  36  public:
  37         unsigned int max;
  38         SimpleExtItem<delaylist> ext;
  39         KickRejoin(Module* Creator)
  40                 : ModeHandler(Creator, "kicknorejoin", 'J', PARAM_SETONLY, MODETYPE_CHANNEL)
  41                 , ext("norejoinusers", Creator)
  42         {
  43         }
  44
  45         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding)
  46         {
  47                 if (adding)
  48                 {
  49                         int v = ConvToInt(parameter);
  50                         if (v <= 0)
  51                                 return MODEACTION_DENY;
  52                         if (parameter == channel->GetModeParameter(this))
  53                                 return MODEACTION_DENY;
  54
  55                         if ((IS_LOCAL(source) && ((unsigned int)v > max)))
  56                                 v = max;
  57
  58                         parameter = ConvToStr(v);
  59                         channel->SetModeParam(this, parameter);
  60                 }
  61                 else
  62                 {
  63                         if (!channel->IsModeSet(this))
  64                                 return MODEACTION_DENY;
  65
  66                         ext.unset(channel);
  67                         channel->SetModeParam(this, "");
  68                 }
  69                 return MODEACTION_ALLOW;
  70         }
  71 };
  72
  73 class ModuleKickNoRejoin : public Module
  74 {
  75         KickRejoin kr;
  76
  77 public:
  78
  79         ModuleKickNoRejoin()
  80                 : kr(this)
  81         {
  82         }
  83
  84         void init()
  85         {
  86                 ServerInstance->Modules->AddService(kr);
  87                 ServerInstance->Modules->AddService(kr.ext);
  88                 Implementation eventlist[] = { I_OnUserPreJoin, I_OnUserKick, I_OnRehash };
  89                 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  90                 OnRehash(NULL);
  91         }
  92
  93         void OnRehash(User* user)
  94         {
  95                 kr.max = ServerInstance->Duration(ServerInstance->Config->ConfValue("kicknorejoin")->getString("maxtime"));
  96                 if (!kr.max)
  97                         kr.max = 30*60;
  98         }
  99
 100         ModResult OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
 101         {
 102                 if (chan)
 103                 {
 104                         delaylist* dl = kr.ext.get(chan);
 105                         if (dl)
 106                         {
 107                                 for (delaylist::iterator iter = dl->begin(); iter != dl->end(); )
 108                                 {
 109                                         if (iter->second > ServerInstance->Time())
 110                                         {
 111                                                 if (iter->first == user->uuid)
 112                                                 {
 113                                                         std::string modeparam = chan->GetModeParameter(&kr);
 114                                                         user->WriteNumeric(ERR_DELAYREJOIN, "%s %s :You must wait %s seconds after being kicked to rejoin (+J)",
 115                                                                 user->nick.c_str(), chan->name.c_str(), modeparam.c_str());
 116                                                         return MOD_RES_DENY;
 117                                                 }
 118                                                 ++iter;
 119                                         }
 120                                         else
 121                                         {
 122                                                 // Expired record, remove.
 123                                                 dl->erase(iter++);
 124                                         }
 125                                 }
 126
 127                                 if (dl->empty())
 128                                         kr.ext.unset(chan);
 129                         }
 130                 }
 131                 return MOD_RES_PASSTHRU;
 132         }
 133
 134         void OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 135         {
 136                 if (memb->chan->IsModeSet(&kr) && (IS_LOCAL(memb->user)) && (source != memb->user))
 137                 {
 138                         delaylist* dl = kr.ext.get(memb->chan);
 139                         if (!dl)
 140                         {
 141                                 dl = new delaylist;
 142                                 kr.ext.set(memb->chan, dl);
 143                         }
 144                         (*dl)[memb->user->uuid] = ServerInstance->Time() + ConvToInt(memb->chan->GetModeParameter(&kr));
 145                 }
 146         }
 147
 148         ~ModuleKickNoRejoin()
 149         {
 150         }
 151
 152         Version GetVersion()
 153         {
 154                 return Version("Channel mode to delay rejoin after kick", VF_VENDOR);
 155         }
 156 };
 157
 158
 159 MODULE_INIT(ModuleKickNoRejoin)