X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_messageflood.cpp;h=a976549c52f2b16c0c2e87b46408319692eff420;hb=d3d32dcf6ddb15d8ca9089de63a51b45b437a063;hp=79ab10eef7e24e83ee4f391aae87b1be207a9af5;hpb=b37a253d962ed7af1ea7a328abf2a1af74f30759;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_messageflood.cpp b/src/modules/m_messageflood.cpp index 79ab10eef..a976549c5 100644 --- a/src/modules/m_messageflood.cpp +++ b/src/modules/m_messageflood.cpp @@ -2,32 +2,21 @@ * | 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) */ -extern InspIRCd* ServerInstance; - +/** Holds flood settings and state for mode +f + */ class floodsettings : public classbase { public: @@ -35,50 +24,45 @@ class floodsettings : public classbase 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); @@ -86,27 +70,29 @@ class floodsettings : public classbase } }; +/** Handles channel mode +f + */ class MsgFlood : public ModeHandler { public: MsgFlood(InspIRCd* Instance) : ModeHandler(Instance, 'f', 1, 0, false, MODETYPE_CHANNEL, false) { } - ModePair ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter) - { + ModePair ModeSet(User* source, User* dest, Channel* channel, const std::string ¶meter) + { floodsettings* x; - if (channel->GetExt("flood",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); - } + 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) + bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, Channel* channel) { /* When TS is equal, the alphabetically later one wins */ return (their_param < our_param); } - ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding) + ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool) { floodsettings *f; @@ -145,27 +131,54 @@ class MsgFlood : public ModeHandler int nsecs = atoi(secs); if ((nlines<1) || (nsecs<1)) { - source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name); - parameter = ""; + source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick,channel->name); + parameter.clear(); return MODEACTION_DENY; } else { if (!channel->GetExt("flood", f)) { - parameter = ConvToStr(nlines) + ":" +ConvToStr(nsecs); - floodsettings *f = new floodsettings(ban,nsecs,nlines); - channel->Extend("flood",f); + 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 + { + std::string cur_param = channel->GetModeParameter('f'); + parameter = std::string(ban ? "*" : "") + ConvToStr(nlines) + ":" +ConvToStr(nsecs); + if (cur_param == parameter) + { + // 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; + } + } + } } } else { - source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name); - parameter = ""; + source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick,channel->name); + parameter.clear(); return MODEACTION_DENY; } } @@ -173,7 +186,7 @@ class MsgFlood : public ModeHandler { if (channel->GetExt("flood", f)) { - DELETE(f); + delete f; channel->Shrink("flood"); channel->SetMode('f', false); return MODEACTION_ALLOW; @@ -186,126 +199,97 @@ class MsgFlood : public ModeHandler class ModuleMsgFlood : public Module { - Server *Srv; + MsgFlood* mf; public: ModuleMsgFlood(InspIRCd* Me) - : Module::Module(Me) + : Module(Me) { mf = new MsgFlood(ServerInstance); - Srv->AddMode(mf, 'f'); + 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); } - void ProcessMessages(userrec* user,chanrec* dest, const std::string &text) + int ProcessMessages(User* user,Channel* dest, const std::string &text) { - if (IS_LOCAL(user)) + if (!IS_LOCAL(user) || CHANOPS_EXEMPT(ServerInstance, 'f') && dest->GetStatus(user) == STATUS_OP) + { + return 0; + } + + floodsettings *f; + if (dest->GetExt("flood", f)) { - floodsettings *f; - if (dest->GetExt("flood", f)) + f->addmessage(user); + if (f->shouldkick(user)) { - f->addmessage(user); - if (f->shouldkick(user)) + /* Youre outttta here! */ + f->clear(user); + if (f->ban) { - /* 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 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(); - } - dest->ServerKickUser(user, "Channel flood triggered (mode +f)", true); + const char* parameters[3]; + parameters[0] = dest->name; + parameters[1] = "+b"; + parameters[2] = user->MakeWildHost(); + 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; } } } + + return 0; } - virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status) + 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); - } + return ProcessMessages(user,(Channel*)dest,text); + + return 0; } - virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status) + 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) { floodsettings* f; if (chan->GetExt("flood", f)) { - DELETE(f); + delete f; chan->Shrink("flood"); } } - void Implements(char* List) - { - List[I_On005Numeric] = List[I_OnChannelDelete] = List[I_OnUserNotice] = List[I_OnUserMessage] = 1; - } - - virtual void On005Numeric(std::string &output) - { - ServerInstance->ModeGrok->InsertMode(output, "f", 3); - } virtual ~ModuleMsgFlood() { - DELETE(mf); + ServerInstance->Modes->DelMode(mf); + delete mf; } virtual Version GetVersion() { - return Version(1,0,0,0,VF_STATIC|VF_VENDOR); - } -}; - - -class ModuleMsgFloodFactory : public ModuleFactory -{ - public: - ModuleMsgFloodFactory() - { - } - - ~ModuleMsgFloodFactory() - { - } - - virtual Module * CreateModule(InspIRCd* Me) - { - return new ModuleMsgFlood(Me); + return Version(1, 2, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION); } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleMsgFloodFactory; -} - +MODULE_INIT(ModuleMsgFlood)