]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_timedbans.cpp
Convert WriteNumeric() calls to pass the parameters of the numeric as method parameters
[user/henk/code/inspircd.git] / src / modules / m_timedbans.cpp
index f75791b2c8f1e5e6342a043004f4f98092373414..8a627b9a6c1d9fcd02bae06b23e8dda4b2a6eb72 100644 (file)
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006 Robin Burchell <robin+git@viroteck.net>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
  *
- * ---------------------------------------------------
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/* $ModDesc: Adds timed bans */
 
-/*
- * ToDo:
- *   Err... not a lot really.
- */ 
-
-#include <stdio.h>
-#include <vector>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-
-Server *Srv;
-        
+#include "inspircd.h"
+#include "listmode.h"
+
+/** Holds a timed ban
+ */
 class TimedBan
 {
  public:
        std::string channel;
        std::string mask;
        time_t expire;
+       Channel* chan;
 };
 
 typedef std::vector<TimedBan> timedbans;
 timedbans TimedBanList;
 
-void handle_tban(char **parameters, int pcnt, userrec *user)
+/** Handle /TBAN
+ */
+class CommandTban : public Command
 {
-       chanrec* channel = Srv->FindChannel(parameters[0]);
-       if (channel)
+       ChanModeReference banmode;
+
+       bool IsBanSet(Channel* chan, const std::string& mask)
        {
-               std::string cm = Srv->ChanMode(user,channel);
-               if ((cm == "%") || (cm == "@"))
+               ListModeBase* banlm = static_cast<ListModeBase*>(*banmode);
+               const ListModeBase::ModeList* bans = banlm->GetList(chan);
+               if (bans)
                {
-                       if (!Srv->IsValidMask(parameters[2]))
-                       {
-                               Srv->SendServ(user->fd,"NOTICE "+std::string(user->nick)+" :Invalid ban mask");
-                               return;
-                       }
-                       for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++)
+                       for (ListModeBase::ModeList::const_iterator i = bans->begin(); i != bans->end(); ++i)
                        {
-                               if ((!strcasecmp(i->mask.c_str(),parameters[2])) && (!strcasecmp(i->channel.c_str(),parameters[0])))
-                               {
-                                       Srv->SendServ(user->fd,"NOTICE "+std::string(user->nick)+" :The ban "+std::string(parameters[2])+" is already on the banlist of "+std::string(parameters[0]));
-                                       return;
-                               }
+                               const ListModeBase::ListItem& ban = *i;
+                               if (!strcasecmp(ban.mask.c_str(), mask.c_str()))
+                                       return true;
                        }
-                       TimedBan T;
-                       std::string channelname = parameters[0];
-                       unsigned long expire = Srv->CalcDuration(parameters[1]) + time(NULL);
-                       if (Srv->CalcDuration(parameters[1]) < 1)
-                       {
-                               Srv->SendServ(user->fd,"NOTICE "+std::string(user->nick)+" :Invalid ban time");
-                               return;
-                       }
-                       char duration[MAXBUF];
-                       snprintf(duration,MAXBUF,"%lu",Srv->CalcDuration(parameters[1]));
-                       std::string mask = parameters[2];
-                       char *setban[3];
-                       setban[0] = parameters[0];
-                       setban[1] = "+b";
-                       setban[2] = parameters[2];
-                       // use CallCommandHandler to make it so that the user sets the mode
-                       // themselves
-                       Srv->CallCommandHandler("MODE",setban,3,user);
-                       T.channel = channelname;
-                       T.mask = mask;
-                       T.expire = expire;
-                       TimedBanList.push_back(T);
-                       Srv->SendChannelServerNotice(Srv->GetServerName(),channel,"NOTICE "+std::string(channel->name)+" :"+std::string(user->nick)+" added a timed ban on "+mask+" lasting for "+std::string(duration)+" seconds.");
-                       return;
                }
-               else WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, channel->name);
-               return;
+
+               return false;
        }
-       WriteServ(user->fd,"401 %s %s :No such channel",user->nick, parameters[0]);
-}
 
-class ModuleTimedBans : public Module
-{
  public:
-       ModuleTimedBans()
+       CommandTban(Module* Creator) : Command(Creator,"TBAN", 3)
+               , banmode(Creator, "ban")
+       {
+               syntax = "<channel> <duration> <banmask>";
+       }
+
+       CmdResult Handle (const std::vector<std::string> &parameters, User *user)
+       {
+               Channel* channel = ServerInstance->FindChan(parameters[0]);
+               if (!channel)
+               {
+                       user->WriteNumeric(Numerics::NoSuchNick(parameters[0]));
+                       return CMD_FAILURE;
+               }
+               int cm = channel->GetPrefixValue(user);
+               if (cm < HALFOP_VALUE)
+               {
+                       user->WriteNumeric(ERR_CHANOPRIVSNEEDED, channel->name, "You do not have permission to set bans on this channel");
+                       return CMD_FAILURE;
+               }
+
+               TimedBan T;
+               std::string channelname = parameters[0];
+               unsigned long duration = InspIRCd::Duration(parameters[1]);
+               unsigned long expire = duration + ServerInstance->Time();
+               if (duration < 1)
+               {
+                       user->WriteNotice("Invalid ban time");
+                       return CMD_FAILURE;
+               }
+               std::string mask = parameters[2];
+               bool isextban = ((mask.size() > 2) && (mask[1] == ':'));
+               if (!isextban && !InspIRCd::IsValidMask(mask))
+                       mask.append("!*@*");
+
+               if (IsBanSet(channel, mask))
+               {
+                       user->WriteNotice("Ban already set");
+                       return CMD_FAILURE;
+               }
+
+               Modes::ChangeList setban;
+               setban.push_add(ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL), mask);
+               // Pass the user (instead of ServerInstance->FakeClient) to ModeHandler::Process() to
+               // make it so that the user sets the mode themselves
+               ServerInstance->Modes->Process(user, channel, NULL, setban);
+               if (ServerInstance->Modes->GetLastParse().empty())
+               {
+                       user->WriteNotice("Invalid ban mask");
+                       return CMD_FAILURE;
+               }
+
+               CUList tmp;
+               T.channel = channelname;
+               T.mask = mask;
+               T.expire = expire + (IS_REMOTE(user) ? 5 : 0);
+               T.chan = channel;
+               TimedBanList.push_back(T);
+
+               // If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
+               ModeHandler* mh = ServerInstance->Modes->FindMode('h', MODETYPE_CHANNEL);
+               char pfxchar = (mh && mh->name == "halfop") ? '%' : '@';
+
+               channel->WriteAllExcept(ServerInstance->FakeClient, true, pfxchar, tmp, "NOTICE %s :%s added a timed ban on %s lasting for %ld seconds.", channel->name.c_str(), user->nick.c_str(), mask.c_str(), duration);
+               return CMD_SUCCESS;
+       }
+
+       RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
        {
-               Srv = new Server;
-               Srv->AddCommand("TBAN",handle_tban,0,3,"m_timedbans.so");
-               TimedBanList.clear();
+               return ROUTE_BROADCAST;
        }
-       
-       virtual ~ModuleTimedBans()
+};
+
+class BanWatcher : public ModeWatcher
+{
+ public:
+       BanWatcher(Module* parent)
+               : ModeWatcher(parent, "ban", MODETYPE_CHANNEL)
        {
-               delete Srv;
-               TimedBanList.clear();
        }
 
-       virtual void OnBackgroundTimer(time_t curtime)
+       void AfterMode(User* source, User* dest, Channel* chan, const std::string& banmask, bool adding)
        {
-               bool again = true;
-               while (again)
+               if (adding)
+                       return;
+
+               irc::string listitem = banmask.c_str();
+               irc::string thischan = chan->name.c_str();
+               for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end(); ++i)
                {
-                       again = false;
-                       for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++)
+                       irc::string target = i->mask.c_str();
+                       irc::string tchan = i->channel.c_str();
+                       if ((listitem == target) && (tchan == thischan))
                        {
-                               if (curtime > i->expire)
-                               {
-                                       chanrec* cr = Srv->FindChannel(i->channel);
-                                       again = true;
-                                       if (cr)
-                                       {
-                                               char *setban[3];
-                                               setban[0] = (char*)i->channel.c_str();
-                                               setban[1] = "-b";
-                                               setban[2] = (char*)i->mask.c_str();
-                                               // kludge alert!
-                                               // ::SendMode expects a userrec* to send the numeric replies
-                                               // back to, so we create it a fake user that isnt in the user
-                                               // hash and set its descriptor to FD_MAGIC_NUMBER so the data
-                                               // falls into the abyss :p
-                                               userrec* temp = new userrec;
-                                               temp->fd = FD_MAGIC_NUMBER;
-                                               Srv->SendMode(setban,3,temp);
-                                               delete temp;
-                                               Srv->SendChannelServerNotice(Srv->GetServerName(),cr,"NOTICE "+std::string(cr->name)+" :Timed ban on "+i->mask+" expired.");
-                                       }
-                                       TimedBanList.erase(i);
-                                       break;
-                               }
+                               TimedBanList.erase(i);
+                               break;
                        }
                }
        }
-       
-       virtual Version GetVersion()
+};
+
+class ChannelMatcher
+{
+       Channel* const chan;
+
+ public:
+       ChannelMatcher(Channel* ch)
+               : chan(ch)
        {
-               return Version(1,0,0,0,VF_VENDOR);
        }
-};
 
+       bool operator()(const TimedBan& tb) const
+       {
+               return (tb.chan == chan);
+       }
+};
 
-class ModuleTimedBansFactory : public ModuleFactory
+class ModuleTimedBans : public Module
 {
+       CommandTban cmd;
+       BanWatcher banwatcher;
+
  public:
-       ModuleTimedBansFactory()
+       ModuleTimedBans()
+               : cmd(this)
+               , banwatcher(this)
        {
        }
-       
-       ~ModuleTimedBansFactory()
+
+       void OnBackgroundTimer(time_t curtime) CXX11_OVERRIDE
+       {
+               timedbans expired;
+               for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end();)
+               {
+                       if (curtime > i->expire)
+                       {
+                               expired.push_back(*i);
+                               i = TimedBanList.erase(i);
+                       }
+                       else
+                               ++i;
+               }
+
+               for (timedbans::iterator i = expired.begin(); i != expired.end(); i++)
+               {
+                       std::string chan = i->channel;
+                       std::string mask = i->mask;
+                       Channel* cr = ServerInstance->FindChan(chan);
+                       if (cr)
+                       {
+                               CUList empty;
+                               std::string expiry = "*** Timed ban on " + chan + " expired.";
+                               cr->WriteAllExcept(ServerInstance->FakeClient, true, '@', empty, "NOTICE %s :%s", cr->name.c_str(), expiry.c_str());
+                               ServerInstance->PI->SendChannelNotice(cr, '@', expiry);
+
+                               Modes::ChangeList setban;
+                               setban.push_remove(ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL), mask);
+                               ServerInstance->Modes->Process(ServerInstance->FakeClient, cr, NULL, setban);
+                       }
+               }
+       }
+
+       void OnChannelDelete(Channel* chan)
        {
+               // Remove all timed bans affecting the channel from internal bookkeeping
+               TimedBanList.erase(std::remove_if(TimedBanList.begin(), TimedBanList.end(), ChannelMatcher(chan)), TimedBanList.end());
        }
-       
-       virtual Module * CreateModule()
+
+       Version GetVersion() CXX11_OVERRIDE
        {
-               return new ModuleTimedBans;
+               return Version("Adds timed bans", VF_COMMON | VF_VENDOR);
        }
-       
 };
 
-
-extern "C" void * init_module( void )
-{
-       return new ModuleTimedBansFactory;
-}
+MODULE_INIT(ModuleTimedBans)