using namespace std;
#include <stdio.h>
+#include <map>
#include "users.h"
#include "channels.h"
#include "modules.h"
/* $ModDesc: Provides channel mode +f (message flood protection) */
-class floodsettings
+class floodsettings : public classbase
{
+ public:
bool ban;
int secs;
int lines;
+ time_t reset;
+ std::map<userrec*,int> counters;
floodsettings() : ban(0), secs(0), lines(0) {};
- floodsettings(bool a, int b, int c) : ban(a), secs(b), lines(c) {};
-}
+ floodsettings(bool a, int b, int c) : ban(a), secs(b), lines(c)
+ {
+ reset = time(NULL) + secs;
+ log(DEBUG,"Create new floodsettings: %lu %lu",time(NULL),reset);
+ };
-class ModuleMsgFlood : public Module
+ void addmessage(userrec* who)
+ {
+ std::map<userrec*,int>::iterator iter = counters.find(who);
+ if (iter != counters.end())
+ {
+ iter->second++;
+ log(DEBUG,"Count for %s is now %d",who->nick,iter->second);
+ }
+ else
+ {
+ counters[who] = 1;
+ log(DEBUG,"Count for %s is now *1*",who->nick);
+ }
+ if (time(NULL) > reset)
+ {
+ log(DEBUG,"floodsettings timer Resetting.");
+ counters.clear();
+ reset = time(NULL) + secs;
+ }
+ }
+
+ bool shouldkick(userrec* who)
+ {
+ std::map<userrec*,int>::iterator iter = counters.find(who);
+ if (iter != counters.end())
+ {
+ log(DEBUG,"should kick? %d, %d",iter->second,this->lines);
+ return (iter->second >= this->lines);
+ }
+ else return false;
+ }
+
+ void clear(userrec* who)
+ {
+ std::map<userrec*,int>::iterator iter = counters.find(who);
+ if (iter != counters.end())
+ {
+ counters.erase(iter);
+ }
+ }
+};
+
+class MsgFlood : public ModeHandler
{
- Server *Srv;
-
public:
-
- ModuleMsgFlood(Server* Me)
- : Module::Module(Me)
+ MsgFlood() : ModeHandler('f', 1, 0, false, MODETYPE_CHANNEL, false) { }
+
+ ModePair ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter)
+ {
+ floodsettings* x;
+ if (channel->GetExt("flood",x))
+ return std::make_pair(true, (x->ban ? "*" : "")+ConvToStr(x->lines)+":"+ConvToStr(x->secs));
+ else
+ return std::make_pair(false, parameter);
+ }
+
+ bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)
{
- Srv = Me;
- Srv->AddExtendedMode('f',MT_CHANNEL,false,1,0);
+ /* When TS is equal, the alphabetically later one wins */
+ return (their_param < our_param);
}
-
- virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms)
+
+ ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
{
- if ((modechar == 'f') && (type == MT_CHANNEL))
+ floodsettings *f;
+
+ if (adding)
{
- if (mode_on)
+ char ndata[MAXBUF];
+ char* data = ndata;
+ strlcpy(ndata,parameter.c_str(),MAXBUF);
+ char* lines = data;
+ char* secs = NULL;
+ bool ban = false;
+ if (*data == '*')
+ {
+ ban = true;
+ lines++;
+ }
+ else
+ {
+ ban = false;
+ }
+ while (*data)
{
- std::string FloodParams = params[0];
- chanrec* c = (chanrec*)target;
- char data[MAXBUF];
- strlcpy(data,FloodParams.c_str(),MAXBUF);
- char* lines = data;
- char* secs = NULL;
- bool ban = false;
- if (*data == '*')
+ if (*data == ':')
{
- ban = true;
+ *data = 0;
data++;
+ secs = data;
+ break;
}
- else
+ else data++;
+ }
+ if (secs)
+ {
+ /* Set up the flood parameters for this channel */
+ int nlines = atoi(lines);
+ int nsecs = atoi(secs);
+ if ((nlines<1) || (nsecs<1))
{
- ban = false;
+ WriteServ(source->fd,"608 %s %s :Invalid flood parameter",source->nick,channel->name);
+ parameter = "";
+ return MODEACTION_DENY;
}
- while (*data)
- {
- if (*data == ':')
- {
- *data = 0;
- data++;
- secs = data;
- break;
- }
- else data++;
- }
- if (secs)
+ else
{
- /* Set up the flood parameters for this channel */
- int nlines = atoi(lines);
- int nsecs = atoi(secs);
- if ((nlines<1) || (nsecs<1))
- {
- WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
- return 0;
- }
- else
+ if (!channel->GetExt("flood", f))
{
- if (!c->GetExt("flood"))
- {
- floodsettings *f = new floodsettings(ban,nlines,nsecs);
- c->Extend("flood",(char*)f);
- }
+ parameter = ConvToStr(nlines) + ":" +ConvToStr(nsecs);
+ floodsettings *f = new floodsettings(ban,nsecs,nlines);
+ channel->Extend("flood",f);
+ channel->SetMode('f', true);
+ channel->SetModeParam('f', parameter.c_str(), true);
+ return MODEACTION_ALLOW;
}
- return 1;
- }
- else
- {
- WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
- return 0;
}
-
}
else
{
- if (c->GetExt("flood"))
+ WriteServ(source->fd,"608 %s %s :Invalid flood parameter",source->nick,channel->name);
+ parameter = "";
+ return MODEACTION_DENY;
+ }
+ }
+ else
+ {
+ if (channel->GetExt("flood", f))
+ {
+ DELETE(f);
+ channel->Shrink("flood");
+ channel->SetMode('f', false);
+ return MODEACTION_ALLOW;
+ }
+ }
+
+ return MODEACTION_DENY;
+ }
+};
+
+class ModuleMsgFlood : public Module
+{
+ Server *Srv;
+ MsgFlood* mf;
+
+ public:
+
+ ModuleMsgFlood(Server* Me)
+ : Module::Module(Me)
+ {
+ Srv = Me;
+ mf = new MsgFlood();
+ Srv->AddMode(mf, 'f');
+ }
+
+ void ProcessMessages(userrec* user,chanrec* dest, const std::string &text)
+ {
+ if (IS_LOCAL(user))
+ {
+ floodsettings *f;
+ if (dest->GetExt("flood", f))
+ {
+ f->addmessage(user);
+ if (f->shouldkick(user))
{
- floodsettings *f = (floodsettings*)c->GetExt("flood");
- delete f;
- c->Shrink("flood");
+ /* Youre outttta here! */
+ f->clear(user);
+ if (f->ban)
+ {
+ const char* parameters[3];
+ parameters[0] = dest->name;
+ parameters[1] = "+b";
+ parameters[2] = user->MakeWildHost();
+ Srv->SendMode(parameters,3,user);
+ std::deque<std::string> n;
+ /* Propogate the ban to other servers.
+ * We dont know what protocol we may be using,
+ * so this event is picked up by our protocol
+ * module and formed into a ban command that
+ * suits the protocol in use.
+ */
+ n.push_back(dest->name);
+ n.push_back("+b");
+ n.push_back(user->MakeWildHost());
+ Event rmode((char *)&n, NULL, "send_mode");
+ rmode.Send();
+ }
+ Srv->KickUser(NULL, user, dest, "Channel flood triggered (mode +f)");
}
}
- return 1;
}
- return 0;
+ }
+
+ virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
+ {
+ if (target_type == TYPE_CHANNEL)
+ {
+ ProcessMessages(user,(chanrec*)dest,text);
+ }
+ }
+
+ virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
+ {
+ if (target_type == TYPE_CHANNEL)
+ {
+ ProcessMessages(user,(chanrec*)dest,text);
+ }
}
void OnChannelDelete(chanrec* chan)
{
- if (c->GetExt("flood"))
+ floodsettings* f;
+ if (chan->GetExt("flood", f))
{
- floodsettings *f = (floodsettings*)c->GetExt("flood");
- delete f;
- c->Shrink("flood");
+ DELETE(f);
+ chan->Shrink("flood");
}
}
void Implements(char* List)
{
- List[I_On005Numeric] = List[I_OnExtendedMode] = List[I_OnChannelDelete] = 1;
+ List[I_On005Numeric] = List[I_OnChannelDelete] = List[I_OnUserNotice] = List[I_OnUserMessage] = 1;
}
- virtual void On005Numeric(std::string &output)
- {
- std::stringstream line(output);
- std::string temp1, temp2;
- while (!line.eof())
- {
- line >> temp1;
- if (temp1.substr(0,10) == "CHANMODES=")
- {
- // By doing this we're *assuming* no other module has fucked up the CHANMODES=
- // section of the 005 numeric. If they have, we're going DOWN in a blaze of glory,
- // with a honking great EXCEPTION :)
- temp1.insert(temp1.find(",")+1,"L");
- }
- temp2 = temp2 + temp1 + " ";
- }
- if (temp2.length())
- output = temp2.substr(0,temp2.length()-1);
- }
+ virtual void On005Numeric(std::string &output)
+ {
+ InsertMode(output, "f", 3);
+ }
virtual ~ModuleMsgFlood()
{
+ DELETE(mf);
}
virtual Version GetVersion()