X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_messageflood.cpp;h=a976549c52f2b16c0c2e87b46408319692eff420;hb=d3d32dcf6ddb15d8ca9089de63a51b45b437a063;hp=bbc4eb043b46446cc66388472af1a65813aa115e;hpb=43ea331d1bde92a9f5d7cf0c434e09024cccbb61;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_messageflood.cpp b/src/modules/m_messageflood.cpp index bbc4eb043..a976549c5 100644 --- a/src/modules/m_messageflood.cpp +++ b/src/modules/m_messageflood.cpp @@ -2,80 +2,67 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. + * InspIRCd: (C) 2002-2008 InspIRCd Development Team + * See: http://www.inspircd.org/wiki/index.php/Credits + * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ -using namespace std; - -#include -#include -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "helperfuncs.h" +#include "inspircd.h" /* $ModDesc: Provides channel mode +f (message flood protection) */ -class floodsettings +/** Holds flood settings and state for mode +f + */ +class floodsettings : public classbase { public: bool ban; int secs; int lines; time_t reset; - std::map counters; + std::map counters; floodsettings() : ban(0), secs(0), lines(0) {}; 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); }; - void addmessage(userrec* who) + void addmessage(User* who) { - std::map::iterator iter = counters.find(who); + std::map::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) + bool shouldkick(User* who) { - std::map::iterator iter = counters.find(who); + std::map::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) + void clear(User* who) { - std::map::iterator iter = counters.find(who); + std::map::iterator iter = counters.find(who); if (iter != counters.end()) { counters.erase(iter); @@ -83,99 +70,160 @@ class floodsettings } }; -class ModuleMsgFlood : public Module +/** Handles channel mode +f + */ +class MsgFlood : public ModeHandler { - Server *Srv; - public: - - ModuleMsgFlood(Server* Me) - : Module::Module(Me) + MsgFlood(InspIRCd* Instance) : ModeHandler(Instance, 'f', 1, 0, false, MODETYPE_CHANNEL, false) { } + + ModePair ModeSet(User* source, User* dest, Channel* channel, const std::string ¶meter) { - Srv = Me; - Srv->AddExtendedMode('f',MT_CHANNEL,false,1,0); + 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); } - - virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms) + + bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, Channel* channel) { - if ((modechar == 'f') && (type == MT_CHANNEL)) + /* When TS is equal, the alphabetically later one wins */ + return (their_param < our_param); + } + + ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool) + { + 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 == '*') { - std::string FloodParams = params[0]; - chanrec* c = (chanrec*)target; - char ndata[MAXBUF]; - char* data = ndata; - strlcpy(ndata,FloodParams.c_str(),MAXBUF); - char* lines = data; - char* secs = NULL; - bool ban = false; - if (*data == '*') - { - ban = true; - lines++; - } - else + ban = true; + lines++; + } + else + { + ban = false; + } + while (*data) + { + if (*data == ':') { - ban = false; + *data = 0; + data++; + secs = data; + break; } - while (*data) + 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)) { - if (*data == ':') - { - *data = 0; - data++; - secs = data; - break; - } - else data++; + source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick,channel->name); + parameter.clear(); + return MODEACTION_DENY; } - if (secs) + else { - /* Set up the flood parameters for this channel */ - int nlines = atoi(lines); - int nsecs = atoi(secs); - if ((nlines<1) || (nsecs<1)) + if (!channel->GetExt("flood", f)) { - WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name); - return 0; + parameter = std::string(ban ? "*" : "") + ConvToStr(nlines) + ":" +ConvToStr(nsecs); + floodsettings *fs = new floodsettings(ban,nsecs,nlines); + channel->Extend("flood",fs); + channel->SetMode('f', true); + channel->SetModeParam('f', parameter.c_str(), true); + return MODEACTION_ALLOW; } else { - if (!c->GetExt("flood")) + std::string cur_param = channel->GetModeParameter('f'); + parameter = std::string(ban ? "*" : "") + ConvToStr(nlines) + ":" +ConvToStr(nsecs); + if (cur_param == parameter) { - floodsettings *f = new floodsettings(ban,nlines,nsecs); - c->Extend("flood",(char*)f); + // mode params match + return MODEACTION_DENY; + } + else + { + if (((nlines != f->lines) || (nsecs != f->secs)) && ((nsecs > 0) && (nlines > 0)) || (ban != f->ban)) + { + delete f; + floodsettings *fs = new floodsettings(ban,nsecs,nlines); + channel->Shrink("flood"); + channel->Extend("flood",fs); + channel->SetModeParam('f', cur_param.c_str(), false); + channel->SetModeParam('f', parameter.c_str(), true); + 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("flood")) - { - floodsettings *f = (floodsettings*)c->GetExt("flood"); - delete f; - c->Shrink("flood"); - } + source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick,channel->name); + parameter.clear(); + return MODEACTION_DENY; } - return 1; } - return 0; + else + { + if (channel->GetExt("flood", f)) + { + delete f; + channel->Shrink("flood"); + channel->SetMode('f', false); + return MODEACTION_ALLOW; + } + } + + return MODEACTION_DENY; } +}; - int ProcessMessages(userrec* user,chanrec* dest,std::string &text) +class ModuleMsgFlood : public Module +{ + + MsgFlood* mf; + + public: + + ModuleMsgFlood(InspIRCd* Me) + : Module(Me) { - floodsettings *f = (floodsettings*)dest->GetExt("flood"); - if (f) + + mf = new MsgFlood(ServerInstance); + if (!ServerInstance->Modes->AddMode(mf)) + throw ModuleException("Could not add new modes!"); + Implementation eventlist[] = { I_OnChannelDelete, I_OnUserPreNotice, I_OnUserPreMessage }; + ServerInstance->Modules->Attach(eventlist, this, 3); + } + + int ProcessMessages(User* user,Channel* dest, const std::string &text) + { + if (!IS_LOCAL(user) || CHANOPS_EXEMPT(ServerInstance, 'f') && dest->GetStatus(user) == STATUS_OP) + { + return 0; + } + + floodsettings *f; + if (dest->GetExt("flood", f)) { f->addmessage(user); if (f->shouldkick(user)) @@ -184,100 +232,64 @@ class ModuleMsgFlood : public Module f->clear(user); if (f->ban) { - char* parameters[3]; + const char* parameters[3]; parameters[0] = dest->name; parameters[1] = "+b"; parameters[2] = user->MakeWildHost(); - Srv->SendMode(parameters,3,user); + ServerInstance->SendMode(parameters,3,user); + + ServerInstance->PI->SendMode(dest->name, std::string("+b ") + user->MakeWildhost()); + } + char kickmessage[MAXBUF]; + snprintf(kickmessage, MAXBUF, "Channel flood triggered (limit is %d lines in %d secs)", f->lines, f->secs); + if (!dest->ServerKickUser(user, kickmessage, true)) + { + delete dest; + return 1; } - Srv->KickUser(NULL, user, dest, "Channel flood triggered (mode +f)"); } } + + return 0; } - virtual void OnUserMessage(userrec* user, void* dest, int target_type, std::string text); + virtual int OnUserPreMessage(User *user, void *dest, int target_type, std::string &text, char status, CUList &exempt_list) { - if (target_type == TYPE_CHANNEL) - { - ProcessMessages(user,(chanrec*)dest,text); - } + if (target_type == TYPE_CHANNEL) + return ProcessMessages(user,(Channel*)dest,text); + + return 0; } - virtual void OnUserNotice(userrec* user, void* dest, int target_type, std::string text) + virtual int OnUserPreNotice(User *user, void *dest, int target_type, std::string &text, char status, CUList &exempt_list) { if (target_type == TYPE_CHANNEL) - { - ProcessMessages(user,(chanrec*)dest,text); - } + return ProcessMessages(user,(Channel*)dest,text); + + return 0; } - void OnChannelDelete(chanrec* chan) + void OnChannelDelete(Channel* chan) { - if (chan->GetExt("flood")) + floodsettings* f; + if (chan->GetExt("flood", f)) { - floodsettings *f = (floodsettings*)chan->GetExt("flood"); delete f; chan->Shrink("flood"); } } - void Implements(char* List) - { - List[I_On005Numeric] = List[I_OnExtendedMode] = 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,"f"); - } - temp2 = temp2 + temp1 + " "; - } - if (temp2.length()) - output = temp2.substr(0,temp2.length()-1); - } virtual ~ModuleMsgFlood() { + ServerInstance->Modes->DelMode(mf); + delete mf; } virtual Version GetVersion() { - return Version(1,0,0,0,VF_STATIC|VF_VENDOR); + return Version(1, 2, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION); } }; - -class ModuleMsgFloodFactory : public ModuleFactory -{ - public: - ModuleMsgFloodFactory() - { - } - - ~ModuleMsgFloodFactory() - { - } - - virtual Module * CreateModule(Server* Me) - { - return new ModuleMsgFlood(Me); - } - -}; - - -extern "C" void * init_module( void ) -{ - return new ModuleMsgFloodFactory; -} - +MODULE_INIT(ModuleMsgFlood)