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 typedef std::map<std::string, time_t> delaylist;
  29
  30 /** Handles channel mode +J
  31  */
  32 class KickRejoin : public ModeHandler
  33 {
  34         static const unsigned int max = 60;
  35  public:
  36         SimpleExtItem<delaylist> ext;
  37         KickRejoin(Module* Creator)
  38                 : ModeHandler(Creator, "kicknorejoin", 'J', PARAM_SETONLY, MODETYPE_CHANNEL)
  39                 , ext("norejoinusers", Creator)
  40         {
  41         }
  42
  43         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
  44         {
  45                 if (adding)
  46                 {
  47                         int v = ConvToInt(parameter);
  48                         if (v <= 0)
  49                                 return MODEACTION_DENY;
  50                         if (parameter == channel->GetModeParameter(this))
  51                                 return MODEACTION_DENY;
  52
  53                         if ((IS_LOCAL(source) && ((unsigned int)v > max)))
  54                                 v = max;
  55
  56                         parameter = ConvToStr(v);
  57                 }
  58                 else
  59                 {
  60                         if (!channel->IsModeSet(this))
  61                                 return MODEACTION_DENY;
  62
  63                         ext.unset(channel);
  64                 }
  65                 return MODEACTION_ALLOW;
  66         }
  67 };
  68
  69 class ModuleKickNoRejoin : public Module
  70 {
  71         KickRejoin kr;
  72
  73 public:
  74         ModuleKickNoRejoin()
  75                 : kr(this)
  76         {
  77         }
  78
  79         void init() CXX11_OVERRIDE
  80         {
  81                 ServerInstance->Modules->AddService(kr);
  82                 ServerInstance->Modules->AddService(kr.ext);
  83                 Implementation eventlist[] = { I_OnUserPreJoin, I_OnUserKick };
  84                 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  85         }
  86
  87         ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
  88         {
  89                 if (chan)
  90                 {
  91                         delaylist* dl = kr.ext.get(chan);
  92                         if (dl)
  93                         {
  94                                 for (delaylist::iterator iter = dl->begin(); iter != dl->end(); )
  95                                 {
  96                                         if (iter->second > ServerInstance->Time())
  97                                         {
  98                                                 if (iter->first == user->uuid)
  99                                                 {
 100                                                         std::string modeparam = chan->GetModeParameter(&kr);
 101                                                         user->WriteNumeric(ERR_DELAYREJOIN, "%s %s :You must wait %s seconds after being kicked to rejoin (+J)",
 102                                                                 user->nick.c_str(), chan->name.c_str(), modeparam.c_str());
 103                                                         return MOD_RES_DENY;
 104                                                 }
 105                                                 ++iter;
 106                                         }
 107                                         else
 108                                         {
 109                                                 // Expired record, remove.
 110                                                 dl->erase(iter++);
 111                                         }
 112                                 }
 113
 114                                 if (dl->empty())
 115                                         kr.ext.unset(chan);
 116                         }
 117                 }
 118                 return MOD_RES_PASSTHRU;
 119         }
 120
 121         void OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts) CXX11_OVERRIDE
 122         {
 123                 if (memb->chan->IsModeSet(&kr) && (IS_LOCAL(memb->user)) && (source != memb->user))
 124                 {
 125                         delaylist* dl = kr.ext.get(memb->chan);
 126                         if (!dl)
 127                         {
 128                                 dl = new delaylist;
 129                                 kr.ext.set(memb->chan, dl);
 130                         }
 131                         (*dl)[memb->user->uuid] = ServerInstance->Time() + ConvToInt(memb->chan->GetModeParameter(&kr));
 132                 }
 133         }
 134
 135         Version GetVersion() CXX11_OVERRIDE
 136         {
 137                 return Version("Channel mode to delay rejoin after kick", VF_VENDOR);
 138         }
 139 };
 140
 141 MODULE_INIT(ModuleKickNoRejoin)