X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_filter.h;h=896c75dc25732b361c84d53b0c915fc3553680dd;hb=7c197db72eab03321e4f3e847054e13126520504;hp=34e3d25131dfb848642bd3af2d828b8882947d18;hpb=74d2f929455e316ab69fcf620b7f9bc792f5e716;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_filter.h b/src/modules/m_filter.h index 34e3d2513..896c75dc2 100644 --- a/src/modules/m_filter.h +++ b/src/modules/m_filter.h @@ -2,25 +2,26 @@ * | 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) 2002-2007 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. * * --------------------------------------------------- */ +#include "xline.h" + class FilterResult : public classbase { public: + std::string freeform; std::string reason; std::string action; + long gline_time; - FilterResult(const std::string &rea, const std::string &act) : reason(rea), action(act) + FilterResult(const std::string free, const std::string &rea, const std::string &act, long gt) : freeform(free), reason(rea), action(act), gline_time(gt) { } @@ -33,70 +34,330 @@ class FilterResult : public classbase } }; +class cmd_filter; + class FilterBase : public Module -{ +{ + cmd_filter* filtcommand; public: - FilterBase(InspIRCd* Me) - : Module::Module(Me) - { - } - - virtual ~FilterBase() + FilterBase(InspIRCd* Me, const std::string &source); + virtual ~FilterBase(); + virtual void Implements(char* List); + virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list); + virtual FilterResult* FilterMatch(const std::string &text) = 0; + virtual bool DeleteFilter(const std::string &freeform) = 0; + virtual void SyncFilters(Module* proto, void* opaque) = 0; + virtual void SendFilter(Module* proto, void* opaque, FilterResult* iter); + virtual std::pair AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration) = 0; + virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list); + virtual void OnRehash(userrec* user, const std::string ¶meter); + virtual Version GetVersion(); + std::string EncodeFilter(FilterResult* filter); + FilterResult DecodeFilter(const std::string &data); + virtual void OnSyncOtherMetaData(Module* proto, void* opaque); + virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata); + virtual int OnStats(char symbol, userrec* user, string_list &results) = 0; + virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line); +}; + +class cmd_filter : public command_t +{ + FilterBase* Base; + public: + cmd_filter(FilterBase* f, InspIRCd* Me, const std::string &source) : command_t(Me, "FILTER", 'o', 1), Base(f) { + this->source = source; + this->syntax = " [] :"; } - virtual void Implements(char* List) + CmdResult Handle(const char** parameters, int pcnt, userrec *user) { - List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1; + if (pcnt == 1) + { + /* Deleting a filter */ + if (Base->DeleteFilter(parameters[0])) + { + user->WriteServ("NOTICE %s :*** Deleted filter '%s'", user->nick, parameters[0]); + return CMD_SUCCESS; + } + else + { + user->WriteServ("NOTICE %s :*** Filter '%s' not found on list.", user->nick, parameters[0]); + return CMD_FAILURE; + } + } + else + { + /* Adding a filter */ + if (pcnt >= 3) + { + std::string freeform = parameters[0]; + std::string type = parameters[1]; + std::string reason; + long duration = 0; + + if ((type != "gline") && (type != "none") && (type != "block") && (type != "kill")) + { + user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', and 'kill'.", user->nick, freeform.c_str()); + return CMD_FAILURE; + } + + if (type == "gline") + { + if (pcnt >= 4) + { + duration = ServerInstance->Duration(parameters[2]); + reason = parameters[3]; + } + else + { + this->TooFewParams(user, " When setting a gline type filter, a gline duration must be specified as the third parameter."); + return CMD_FAILURE; + } + } + else + { + reason = parameters[2]; + } + std::pair result = Base->AddFilter(freeform, type, reason, duration); + if (result.first) + { + user->WriteServ("NOTICE %s :*** Added filter '%s', type '%s'%s%s, reason: '%s'", user->nick, freeform.c_str(), + type.c_str(), (duration ? " duration: " : ""), (duration ? parameters[2] : ""), + reason.c_str()); + return CMD_SUCCESS; + } + else + { + user->WriteServ("NOTICE %s :*** Filter '%s' could not be added: %s", user->nick, freeform.c_str(), result.second.c_str()); + return CMD_FAILURE; + } + } + else + { + this->TooFewParams(user, "."); + return CMD_FAILURE; + } + + } } - virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status) + void TooFewParams(userrec* user, const std::string &extra_text) { - return OnUserPreNotice(user,dest,target_type,text,status); + user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick, extra_text.c_str()); } +}; - /* This must be implemented by the module which uses the header */ - virtual FilterResult* FilterMatch(const std::string &text) = 0; +FilterBase::FilterBase(InspIRCd* Me, const std::string &source) : Module::Module(Me) +{ + filtcommand = new cmd_filter(this, Me, source); + ServerInstance->AddCommand(filtcommand); +} + +FilterBase::~FilterBase() +{ +} + +void FilterBase::Implements(char* List) +{ + List[I_OnPreCommand] = List[I_OnStats] = List[I_OnSyncOtherMetaData] = List[I_OnDecodeMetaData] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1; +} - virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status) +int FilterBase::OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) +{ + return OnUserPreNotice(user,dest,target_type,text,status,exempt_list); +} + +int FilterBase::OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) +{ + /* Leave ulines alone */ + if ((ServerInstance->ULine(user->server)) || (!IS_LOCAL(user))) + return 0; + + FilterResult* f = this->FilterMatch(text); + if (f) { - FilterResult* f = this->FilterMatch(text); - if (f) + std::string target = ""; + if (target_type == TYPE_USER) + { + userrec* t = (userrec*)dest; + target = std::string(t->nick); + } + else if (target_type == TYPE_CHANNEL) + { + chanrec* t = (chanrec*)dest; + target = std::string(t->name); + } + if (f->action == "block") + { + ServerInstance->WriteOpers(std::string("FILTER: ")+user->nick+" had their notice filtered, target was "+target+": "+f->reason); + user->WriteServ("NOTICE "+std::string(user->nick)+" :Your notice has been filtered and opers notified: "+f->reason); + } + ServerInstance->Log(DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their notice filtered, target was ")+target+": "+f->reason+" Action: "+f->action); + if (f->action == "kill") + { + userrec::QuitUser(ServerInstance,user,"Filtered: "+f->reason); + } + if (f->action == "gline") { - std::string target = ""; - if (target_type == TYPE_USER) + if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), user->MakeHostIP())) { - userrec* t = (userrec*)dest; - target = std::string(t->nick); + ServerInstance->XLines->apply_lines(APPLY_GLINES); + FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP())); } - else if (target_type == TYPE_CHANNEL) + } + return 1; + } + return 0; +} + +int FilterBase::OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line) +{ + if ((validated == 1) && (IS_LOCAL(user))) + { + std::string checkline; + int replacepoint = 0; + bool parting = false; + + if (command == "QUIT") + { + /* QUIT with no reason: nothing to do */ + if (pcnt < 1) + return 0; + + checkline = parameters[0]; + replacepoint = 0; + parting = false; + } + else if (command == "PART") + { + /* PART with no reason: nothing to do */ + if (pcnt < 2) + return 0; + + checkline = parameters[1]; + replacepoint = 1; + parting = true; + } + else + /* We're only messing with PART and QUIT */ + return 0; + + FilterResult* f = this->FilterMatch(checkline); + + if (!f) + /* PART or QUIT reason doesnt match a filter */ + return 0; + + ServerInstance->Log(DEBUG,"Match block text"); + + /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */ + command_t* c = ServerInstance->Parser->GetHandler(command); + if (c) + { + ServerInstance->Log(DEBUG,"Found handler"); + + const char* params[127]; + for (int item = 0; item < pcnt; item++) + params[item] = parameters[item]; + params[replacepoint] = "Reason filtered"; + + /* We're blocking, OR theyre quitting and its a KILL action + * (we cant kill someone whos already quitting, so filter them anyway) + */ + if ((f->action == "block") || (((!parting) && (f->action == "kill")))) { - chanrec* t = (chanrec*)dest; - target = std::string(t->name); - } - if (f->action == "block") - { - ServerInstance->WriteOpers(std::string("FILTER: ")+user->nick+" had their notice filtered, target was "+target+": "+f->reason); - user->WriteServ("NOTICE "+std::string(user->nick)+" :Your notice has been filtered and opers notified: "+f->reason); + c->Handle(params, pcnt, user); + return 1; } - ServerInstance->Log(DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their notice filtered, target was ")+target+": "+f->reason+" Action: "+f->action); - - if (f->action == "kill") + else { - userrec::QuitUser(ServerInstance,user,f->reason); + /* Are they parting, if so, kill is applicable */ + if ((parting) && (f->action == "kill")) + { + user->SetWriteError("Filtered: "+f->reason); + /* This WriteServ causes the write error to be applied. + * Its not safe to kill here with QuitUser in a PreCommand handler, + * so we do it this way, which is safe just about anywhere. + */ + user->WriteServ("NOTICE %s :*** Your PART message was filtered: %s", user->nick, f->reason.c_str()); + } + if (f->action == "gline") + { + /* Note: We gline *@IP so that if their host doesnt resolve the gline still applies. */ + std::string wild = "*@"; + wild.append(user->GetIPString()); + + if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), wild.c_str())) + { + ServerInstance->XLines->apply_lines(APPLY_GLINES); + FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP())); + } + } + return 1; } - return 1; } return 0; } + return 0; +} - virtual void OnRehash(const std::string ¶meter) - { - } +void FilterBase::OnRehash(userrec* user, const std::string ¶meter) +{ +} - virtual Version GetVersion() +Version FilterBase::GetVersion() +{ + return Version(1,1,0,2,VF_VENDOR|VF_COMMON,API_VERSION); +} + + +std::string FilterBase::EncodeFilter(FilterResult* filter) +{ + std::ostringstream stream; + std::string x = filter->freeform; + + for (std::string::iterator n = x.begin(); n != x.end(); n++) + if (*n == ' ') + *n = '\7'; + + stream << x << " " << filter->action << " " << filter->gline_time << " " << filter->reason; + return stream.str(); +} + +FilterResult FilterBase::DecodeFilter(const std::string &data) +{ + FilterResult res; + std::istringstream stream(data); + + stream >> res.freeform; + stream >> res.action; + stream >> res.gline_time; + res.reason = stream.str(); + + for (std::string::iterator n = res.freeform.begin(); n != res.freeform.end(); n++) + if (*n == '\7') + *n = ' '; + + return res; +} + +void FilterBase::OnSyncOtherMetaData(Module* proto, void* opaque) +{ + this->SyncFilters(proto, opaque); +} + +void FilterBase::SendFilter(Module* proto, void* opaque, FilterResult* iter) +{ + proto->ProtoSendMetaData(opaque, TYPE_OTHER, NULL, "filter", EncodeFilter(iter)); +} + +void FilterBase::OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata) +{ + if ((target_type == TYPE_OTHER) && (extname == "filter")) { - // This is version 2 because version 1.x is the unreleased unrealircd module - return Version(1,1,0,2,VF_VENDOR,API_VERSION); + FilterResult data = DecodeFilter(extdata); + this->AddFilter(data.freeform, data.action, data.reason, data.gline_time); } -}; +} +