-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 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.
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2006-2007 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
*
- * ---------------------------------------------------
+ * 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.
+ *
+ * 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/>.
*/
-using namespace std;
-#include <stdio.h>
-#include <map>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
+#include "inspircd.h"
/* $ModDesc: Provides channel mode +j (join flood protection) */
+/** Holds settings and state associated with channel mode +j
+ */
class joinfloodsettings
{
public:
-
int secs;
int joins;
time_t reset;
int counter;
bool locked;
- joinfloodsettings() : secs(0), joins(0) {};
joinfloodsettings(int b, int c) : secs(b), joins(c)
{
- reset = time(NULL) + secs;
+ reset = ServerInstance->Time() + secs;
counter = 0;
locked = false;
- log(DEBUG,"Create new joinfloodsettings: %lu %lu",time(NULL),reset);
};
void addjoin()
{
counter++;
- log(DEBUG,"joinflood counter is %d",counter);
- if (time(NULL) > reset)
+ if (ServerInstance->Time() > reset)
{
- log(DEBUG,"joinflood counter reset");
counter = 0;
- reset = time(NULL) + secs;
+ reset = ServerInstance->Time() + secs;
}
}
void clear()
{
- log(DEBUG,"joinflood counter clear");
counter = 0;
}
{
if (locked)
{
- if (time(NULL) > unlocktime)
+ if (ServerInstance->Time() > unlocktime)
{
locked = false;
return false;
void lock()
{
- log(DEBUG,"joinflood lock");
locked = true;
- unlocktime = time(NULL) + 60;
+ unlocktime = ServerInstance->Time() + 60;
}
-
};
-class ModuleJoinFlood : public Module
+/** Handles channel mode +j
+ */
+class JoinFlood : public ModeHandler
{
- Server *Srv;
-
public:
-
- ModuleJoinFlood(Server* Me)
- : Module::Module(Me)
- {
- Srv = Me;
- Srv->AddExtendedMode('j',MT_CHANNEL,false,1,0);
- }
-
- virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms)
+ SimpleExtItem<joinfloodsettings> ext;
+ JoinFlood(Module* Creator) : ModeHandler(Creator, "joinflood", 'j', PARAM_SETONLY, MODETYPE_CHANNEL),
+ ext("joinflood", Creator) { }
+
+ ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
{
- if ((modechar == 'j') && (type == MT_CHANNEL))
+ if (adding)
{
- if (mode_on)
+ char ndata[MAXBUF];
+ char* data = ndata;
+ strlcpy(ndata,parameter.c_str(),MAXBUF);
+ char* joins = data;
+ char* secs = NULL;
+ while (*data)
{
- std::string FloodParams = params[0];
- chanrec* c = (chanrec*)target;
- char ndata[MAXBUF];
- char* data = ndata;
- strlcpy(ndata,FloodParams.c_str(),MAXBUF);
- char* joins = data;
- char* secs = NULL;
- while (*data)
+ if (*data == ':')
{
- if (*data == ':')
- {
- *data = 0;
- data++;
- secs = data;
- break;
- }
- else data++;
+ *data = 0;
+ data++;
+ secs = data;
+ break;
}
- if (secs)
+ else data++;
+ }
+ if (secs)
+
+ {
+ /* Set up the flood parameters for this channel */
+ int njoins = atoi(joins);
+ int nsecs = atoi(secs);
+ if ((njoins<1) || (nsecs<1))
{
- /* Set up the flood parameters for this channel */
- int njoins = atoi(joins);
- int nsecs = atoi(secs);
- if ((njoins<1) || (nsecs<1))
+ source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick.c_str(),channel->name.c_str());
+ parameter.clear();
+ return MODEACTION_DENY;
+ }
+ else
+ {
+ joinfloodsettings* f = ext.get(channel);
+ if (!f)
{
- WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
- return 0;
+ parameter = ConvToStr(njoins) + ":" +ConvToStr(nsecs);
+ f = new joinfloodsettings(nsecs, njoins);
+ ext.set(channel, f);
+ channel->SetModeParam('j', parameter);
+ return MODEACTION_ALLOW;
}
else
{
- if (!c->GetExt("joinflood"))
+ std::string cur_param = channel->GetModeParameter('j');
+ parameter = ConvToStr(njoins) + ":" +ConvToStr(nsecs);
+ if (cur_param == parameter)
{
- joinfloodsettings *f = new joinfloodsettings(nsecs,njoins);
- c->Extend("joinflood",(char*)f);
+ // mode params match
+ return MODEACTION_DENY;
+ }
+ else
+ {
+ // new mode param, replace old with new
+ if ((nsecs > 0) && (njoins > 0))
+ {
+ f = new joinfloodsettings(nsecs, njoins);
+ ext.set(channel, f);
+ channel->SetModeParam('j', parameter);
+ return MODEACTION_ALLOW;
+ }
+ else
+ {
+ return MODEACTION_DENY;
+ }
}
}
- return 1;
}
- else
- {
- WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
- return 0;
- }
-
}
else
{
- chanrec* c = (chanrec*)target;
- if (c->GetExt("joinflood"))
- {
- joinfloodsettings *f = (joinfloodsettings*)c->GetExt("joinflood");
- delete f;
- c->Shrink("joinflood");
- }
+ source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick.c_str(),channel->name.c_str());
+ return MODEACTION_DENY;
}
- return 1;
}
- return 0;
+ else
+ {
+ joinfloodsettings* f = ext.get(channel);
+ if (f)
+ {
+ ext.unset(channel);
+ channel->SetModeParam('j', "");
+ return MODEACTION_ALLOW;
+ }
+ }
+ return MODEACTION_DENY;
}
+};
+
+class ModuleJoinFlood : public Module
+{
- virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
+ JoinFlood jf;
+
+ public:
+
+ ModuleJoinFlood()
+ : jf(this)
+ {
+
+ if (!ServerInstance->Modes->AddMode(&jf))
+ throw ModuleException("Could not add new modes!");
+ ServerInstance->Extensions.Register(&jf.ext);
+ Implementation eventlist[] = { I_OnUserPreJoin, I_OnUserJoin };
+ ServerInstance->Modules->Attach(eventlist, this, 2);
+ }
+
+ ModResult OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
{
if (chan)
{
- joinfloodsettings *f = (joinfloodsettings*)chan->GetExt("joinflood");
- if (f)
+ joinfloodsettings *f = jf.ext.get(chan);
+ if (f && f->islocked())
{
- if (f->islocked())
- {
- WriteServ(user->fd,"609 %s %s :This channel is temporarily unavailable (+j). Please try again later.",user->nick,chan->name);
- return 1;
- }
+ user->WriteNumeric(609, "%s %s :This channel is temporarily unavailable (+j). Please try again later.",user->nick.c_str(),chan->name.c_str());
+ return MOD_RES_DENY;
}
}
- return 0;
+ return MOD_RES_PASSTHRU;
}
- virtual void OnUserJoin(userrec* user, chanrec* channel)
+ void OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
{
- joinfloodsettings *f = (joinfloodsettings*)channel->GetExt("joinflood");
+ /* We arent interested in JOIN events caused by a network burst */
+ if (sync)
+ return;
+
+ joinfloodsettings *f = jf.ext.get(memb->chan);
+
+ /* But all others are OK */
if (f)
{
f->addjoin();
{
f->clear();
f->lock();
- WriteChannelWithServ((char*)Srv->GetServerName().c_str(), channel, "NOTICE %s :This channel has been closed to new users for 60 seconds because there have been more than %d joins in %d seconds.",channel->name,f->joins,f->secs);
+ memb->chan->WriteChannelWithServ((char*)ServerInstance->Config->ServerName.c_str(), "NOTICE %s :This channel has been closed to new users for 60 seconds because there have been more than %d joins in %d seconds.", memb->chan->name.c_str(), f->joins, f->secs);
}
}
}
- void OnChannelDelete(chanrec* chan)
- {
- if (chan->GetExt("joinflood"))
- {
- joinfloodsettings *f = (joinfloodsettings*)chan->GetExt("joinflood");
- delete f;
- chan->Shrink("joinflood");
- }
- }
-
- void Implements(char* List)
- {
- List[I_On005Numeric] = List[I_OnExtendedMode] = List[I_OnChannelDelete] = List[I_OnUserPreJoin] = List[I_OnUserJoin] = 1;
- }
-
- virtual void On005Numeric(std::string &output)
+ ~ModuleJoinFlood()
{
- InsertMode(output, "j", 3);
}
- virtual ~ModuleJoinFlood()
- {
- }
-
- virtual Version GetVersion()
+ Version GetVersion()
{
- return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
+ return Version("Provides channel mode +j (join flood protection)", VF_VENDOR);
}
};
-
-class ModuleJoinFloodFactory : public ModuleFactory
-{
- public:
- ModuleJoinFloodFactory()
- {
- }
-
- ~ModuleJoinFloodFactory()
- {
- }
-
- virtual Module * CreateModule(Server* Me)
- {
- return new ModuleJoinFlood(Me);
- }
-
-};
-
-
-extern "C" void * init_module( void )
-{
- return new ModuleJoinFloodFactory;
-}
-
+MODULE_INIT(ModuleJoinFlood)
projects / user / henk / code / inspircd.git / blobdiff