X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_messageflood.cpp;h=5a40664d9b0f81c313e5408ff86bda5735ab8472;hb=6d03943426dcce76ba66567a9b18425a5ebb4c0c;hp=282a42a3bb23447f503adeec4c70d02f77cf2309;hpb=ec731e80784ec1940faefdd6dc72339c60c2b7ce;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_messageflood.cpp b/src/modules/m_messageflood.cpp index 282a42a3b..5a40664d9 100644 --- a/src/modules/m_messageflood.cpp +++ b/src/modules/m_messageflood.cpp @@ -2,80 +2,68 @@ * | 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) 2002-2009 InspIRCd Development Team + * See: http://wiki.inspircd.org/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 { + private: + InspIRCd *ServerInstance; 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); + reset = ServerInstance->Time() + secs; }; - 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) + if (ServerInstance->Time() > reset) { - log(DEBUG,"floodsettings timer Resetting."); counters.clear(); - reset = time(NULL) + secs; + reset = ServerInstance->Time() + 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); @@ -83,189 +71,206 @@ class floodsettings } }; -class ModuleMsgFlood : public Module +/** Handles channel mode +f + */ +class MsgFlood : public ModeHandler { - Server *Srv; - public: - - ModuleMsgFlood(Server* Me) - : Module::Module(Me) + SimpleExtItem ext; + MsgFlood(Module* Creator) : ModeHandler(Creator, 'f', PARAM_SETONLY, MODETYPE_CHANNEL), + ext("messageflood", Creator) { } + + ModePair ModeSet(User* source, User* dest, Channel* channel, const std::string ¶meter) { - Srv = Me; - Srv->AddExtendedMode('f',MT_CHANNEL,false,1,0); + floodsettings* x = ext.get(channel); + if (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) + + ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding) { - if ((modechar == 'f') && (type == MT_CHANNEL)) + floodsettings *f = ext.get(channel); + + 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<2) || (nsecs<1)) { - if (*data == ':') - { - *data = 0; - data++; - secs = data; - break; - } - else data++; + source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick.c_str(),channel->name.c_str()); + 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 (!f) { - WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name); - return 0; + parameter = std::string(ban ? "*" : "") + ConvToStr(nlines) + ":" +ConvToStr(nsecs); + f = new floodsettings(ban,nsecs,nlines); + ext.set(channel, f); + channel->SetModeParam('f', parameter); + 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) + { + // mode params match + return MODEACTION_DENY; + } + else { - floodsettings *f = new floodsettings(ban,nlines,nsecs); - c->Extend("flood",(char*)f); + if ((((nlines != f->lines) || (nsecs != f->secs) || (ban != f->ban))) && (((nsecs > 0) && (nlines > 0)))) + { + floodsettings *fs = new floodsettings(ban,nsecs,nlines); + ext.set(channel, fs); + channel->SetModeParam('f', 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("flood")) - { - floodsettings *f = (floodsettings*)c->GetExt("flood"); - delete f; - c->Shrink("flood"); - } + source->WriteNumeric(608, "%s %s :Invalid flood parameter",source->nick.c_str(),channel->name.c_str()); + parameter.clear(); + return MODEACTION_DENY; } - return 1; } - return 0; - } - - void ProcessMessages(userrec* user,chanrec* dest,std::string &text) - { - if (IS_LOCAL(user)) + else { - floodsettings *f = (floodsettings*)dest->GetExt("flood"); if (f) { - f->addmessage(user); - if (f->shouldkick(user)) - { - /* Youre outttta here! */ - f->clear(user); - if (f->ban) - { - char* parameters[3]; - parameters[0] = dest->name; - parameters[1] = "+b"; - parameters[2] = user->MakeWildHost(); - Srv->SendMode(parameters,3,user); - } - Srv->KickUser(NULL, user, dest, "Channel flood triggered (mode +f)"); - } + ext.unset(channel); + channel->SetModeParam('f', ""); + return MODEACTION_ALLOW; } } + + return MODEACTION_DENY; } +}; + +class ModuleMsgFlood : public Module +{ + MsgFlood mf; + + public: - virtual void OnUserMessage(userrec* user, void* dest, int target_type, std::string text, char status) + ModuleMsgFlood() + : mf(this) { - if (target_type == TYPE_CHANNEL) - { - ProcessMessages(user,(chanrec*)dest,text); - } + if (!ServerInstance->Modes->AddMode(&mf)) + throw ModuleException("Could not add new modes!"); + Extensible::Register(&mf.ext); + Implementation eventlist[] = { I_OnUserPreNotice, I_OnUserPreMessage }; + ServerInstance->Modules->Attach(eventlist, this, 2); } - virtual void OnUserNotice(userrec* user, void* dest, int target_type, std::string text, char status) + ModResult ProcessMessages(User* user,Channel* dest, const std::string &text) { - if (target_type == TYPE_CHANNEL) + if (!IS_LOCAL(user) || (CHANOPS_EXEMPT('f') && dest->GetPrefixValue(user) == OP_VALUE)) { - ProcessMessages(user,(chanrec*)dest,text); + return MOD_RES_PASSTHRU; } - } - void OnChannelDelete(chanrec* chan) - { - if (chan->GetExt("flood")) + floodsettings *f = mf.ext.get(dest); + if (f) { - floodsettings *f = (floodsettings*)chan->GetExt("flood"); - delete f; - chan->Shrink("flood"); + f->addmessage(user); + if (f->shouldkick(user)) + { + /* Youre outttta here! */ + f->clear(user); + if (f->ban) + { + std::vector parameters; + parameters.push_back(dest->name); + parameters.push_back("+b"); + parameters.push_back(user->MakeWildHost()); + ServerInstance->SendMode(parameters, ServerInstance->FakeClient); + + ServerInstance->PI->SendModeStr(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)) + { + delete dest; + } + + return MOD_RES_DENY; + } } - } - void Implements(char* List) - { - List[I_On005Numeric] = List[I_OnExtendedMode] = List[I_OnChannelDelete] = List[I_OnUserNotice] = List[I_OnUserMessage] = 1; + return MOD_RES_PASSTHRU; } - virtual void On005Numeric(std::string &output) + ModResult OnUserPreMessage(User *user, void *dest, int target_type, std::string &text, char status, CUList &exempt_list) { - InsertMode(output, "f", 3); - } + if (target_type == TYPE_CHANNEL) + return ProcessMessages(user,(Channel*)dest,text); - virtual ~ModuleMsgFlood() - { + return MOD_RES_PASSTHRU; } - - virtual Version GetVersion() - { - return Version(1,0,0,0,VF_STATIC|VF_VENDOR); - } -}; - -class ModuleMsgFloodFactory : public ModuleFactory -{ - public: - ModuleMsgFloodFactory() + ModResult OnUserPreNotice(User *user, void *dest, int target_type, std::string &text, char status, CUList &exempt_list) { + if (target_type == TYPE_CHANNEL) + return ProcessMessages(user,(Channel*)dest,text); + + return MOD_RES_PASSTHRU; } - - ~ModuleMsgFloodFactory() + + ~ModuleMsgFlood() { + ServerInstance->Modes->DelMode(&mf); } - - virtual Module * CreateModule(Server* Me) + + Version GetVersion() { - return new ModuleMsgFlood(Me); + return Version("Provides channel mode +f (message flood protection)", VF_COMMON | VF_VENDOR, API_VERSION); } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleMsgFloodFactory; -} - +MODULE_INIT(ModuleMsgFlood)