1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
24 #include "helperfuncs.h"
26 /* $ModDesc: Provides channel mode +f (message flood protection) */
28 class floodsettings : public classbase
35 std::map<userrec*,int> counters;
37 floodsettings() : ban(0), secs(0), lines(0) {};
38 floodsettings(bool a, int b, int c) : ban(a), secs(b), lines(c)
40 reset = time(NULL) + secs;
41 log(DEBUG,"Create new floodsettings: %lu %lu",time(NULL),reset);
44 void addmessage(userrec* who)
46 std::map<userrec*,int>::iterator iter = counters.find(who);
47 if (iter != counters.end())
50 log(DEBUG,"Count for %s is now %d",who->nick,iter->second);
55 log(DEBUG,"Count for %s is now *1*",who->nick);
57 if (time(NULL) > reset)
59 log(DEBUG,"floodsettings timer Resetting.");
61 reset = time(NULL) + secs;
65 bool shouldkick(userrec* who)
67 std::map<userrec*,int>::iterator iter = counters.find(who);
68 if (iter != counters.end())
70 log(DEBUG,"should kick? %d, %d",iter->second,this->lines);
71 return (iter->second >= this->lines);
76 void clear(userrec* who)
78 std::map<userrec*,int>::iterator iter = counters.find(who);
79 if (iter != counters.end())
86 class MsgFlood : public ModeHandler
89 MsgFlood() : ModeHandler('f', 1, 0, false, MODETYPE_CHANNEL, false) { }
91 ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
99 strlcpy(ndata,parameter.c_str(),MAXBUF);
125 /* Set up the flood parameters for this channel */
126 int nlines = atoi(lines);
127 int nsecs = atoi(secs);
128 if ((nlines<1) || (nsecs<1))
130 WriteServ(source->fd,"608 %s %s :Invalid flood parameter",source->nick,channel->name);
132 return MODEACTION_DENY;
136 if (!channel->GetExt("flood", f))
138 parameter = ConvToStr(nlines) + ":" +ConvToStr(nsecs);
139 floodsettings *f = new floodsettings(ban,nsecs,nlines);
140 channel->Extend("flood",f);
141 channel->SetMode('f', true);
142 channel->SetModeParam('f', parameter.c_str(), true);
143 return MODEACTION_ALLOW;
149 WriteServ(source->fd,"608 %s %s :Invalid flood parameter",source->nick,channel->name);
151 return MODEACTION_DENY;
156 if (channel->GetExt("flood", f))
159 channel->Shrink("flood");
160 channel->SetMode('f', false);
161 return MODEACTION_ALLOW;
165 return MODEACTION_DENY;
169 class ModuleMsgFlood : public Module
176 ModuleMsgFlood(Server* Me)
181 Srv->AddMode(mf, 'f');
184 void ProcessMessages(userrec* user,chanrec* dest, const std::string &text)
189 if (dest->GetExt("flood", f))
192 if (f->shouldkick(user))
194 /* Youre outttta here! */
198 const char* parameters[3];
199 parameters[0] = dest->name;
200 parameters[1] = "+b";
201 parameters[2] = user->MakeWildHost();
202 Srv->SendMode(parameters,3,user);
203 std::deque<std::string> n;
204 /* Propogate the ban to other servers.
205 * We dont know what protocol we may be using,
206 * so this event is picked up by our protocol
207 * module and formed into a ban command that
208 * suits the protocol in use.
210 n.push_back(dest->name);
212 n.push_back(user->MakeWildHost());
213 Event rmode((char *)&n, NULL, "send_mode");
216 Srv->KickUser(NULL, user, dest, "Channel flood triggered (mode +f)");
222 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
224 if (target_type == TYPE_CHANNEL)
226 ProcessMessages(user,(chanrec*)dest,text);
230 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
232 if (target_type == TYPE_CHANNEL)
234 ProcessMessages(user,(chanrec*)dest,text);
238 void OnChannelDelete(chanrec* chan)
241 if (chan->GetExt("flood", f))
244 chan->Shrink("flood");
248 void Implements(char* List)
250 List[I_On005Numeric] = List[I_OnChannelDelete] = List[I_OnUserNotice] = List[I_OnUserMessage] = 1;
253 virtual void On005Numeric(std::string &output)
255 InsertMode(output, "f", 3);
258 virtual ~ModuleMsgFlood()
263 virtual Version GetVersion()
265 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
270 class ModuleMsgFloodFactory : public ModuleFactory
273 ModuleMsgFloodFactory()
277 ~ModuleMsgFloodFactory()
281 virtual Module * CreateModule(Server* Me)
283 return new ModuleMsgFlood(Me);
289 extern "C" void * init_module( void )
291 return new ModuleMsgFloodFactory;