X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_filter.cpp;h=0220a3a44eedeb1e4b7d3260f5c4b67a40623db4;hb=9db7af579c46a9f0379fdf71fb773a0a76a94846;hp=5263163628f41147d43db3750d5bd45df8df8675;hpb=12737ab4ad61a0d8a908c8a21594c7012e21eb3c;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_filter.cpp b/src/modules/m_filter.cpp index 526316362..0220a3a44 100644 --- a/src/modules/m_filter.cpp +++ b/src/modules/m_filter.cpp @@ -2,193 +2,696 @@ * | 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. + * the file COPYING for details. * * --------------------------------------------------- */ -using namespace std; - -// Message and notice filtering using glob patterns -// a module based on the original work done by Craig Edwards in 2003 -// for the chatspike network. - -#include -#include -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "helperfuncs.h" #include "inspircd.h" +#include "xline.h" +#include "m_regex.h" -/* $ModDesc: An enhanced version of the unreal m_filter.so used by chatspike.net */ +/* $ModDesc: Text (spam) filtering */ +static std::string RegexEngine = ""; +static Module* rxengine = NULL; +enum FilterFlags +{ + FLAG_PART = 2, + FLAG_QUIT = 4, + FLAG_PRIVMSG = 8, + FLAG_NOTICE = 16 +}; -class Filter : public classbase +class FilterResult { public: + std::string freeform; std::string reason; std::string action; -}; + long gline_time; + std::string flags; -typedef std::map filter_t; + bool flag_no_opers; + bool flag_part_message; + bool flag_quit_message; + bool flag_privmsg; + bool flag_notice; -class FilterException : public ModuleException -{ - public: - virtual const char* GetReason() + FilterResult(const std::string free, const std::string &rea, const std::string &act, long gt, const std::string &fla) : + freeform(free), reason(rea), action(act), gline_time(gt), flags(fla) + { + this->FillFlags(fla); + } + + int FillFlags(const std::string &fl) + { + flags = fl; + flag_no_opers = flag_part_message = flag_quit_message = flag_privmsg = flag_notice = false; + size_t x = 0; + + for (std::string::const_iterator n = flags.begin(); n != flags.end(); ++n, ++x) + { + switch (*n) + { + case 'o': + flag_no_opers = true; + break; + case 'P': + flag_part_message = true; + break; + case 'q': + flag_quit_message = true; + break; + case 'p': + flag_privmsg = true; + break; + case 'n': + flag_notice = true; + break; + case '*': + flag_no_opers = flag_part_message = flag_quit_message = + flag_privmsg = flag_notice = true; + break; + default: + return x; + break; + } + } + return 0; + } + + FilterResult() + { + } + + virtual ~FilterResult() { - return "Could not find definition in your config file!"; } }; -class ModuleFilter : public Module +class FilterBase; + +class CommandFilter : public Command { - - filter_t filters; - + FilterBase* Base; public: - ModuleFilter(InspIRCd* Me) - : Module::Module(Me) - { - // read the configuration file on startup. - // it is perfectly valid to set to the value of the - // main config file, then append your tags to the bottom - // of the main config... but rather messy. That's why the capability - // of using a seperate config file is provided. - - OnRehash(""); - } - - virtual ~ModuleFilter() + CommandFilter(FilterBase* f) + : Command(reinterpret_cast(f), "FILTER", 1, 5), Base(f) { + flags_needed = 'o'; + this->syntax = " [] :"; } + CmdResult Handle(const std::vector&, User*); - void Implements(char* List) + void TooFewParams(User* user, const std::string &extra_text) { - List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1; + user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick.c_str(), extra_text.c_str()); } - - // format of a config entry is - - virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status) + + RouteDescriptor GetRouting(User* user, const std::vector& parameters) { - return OnUserPreNotice(user,dest,target_type,text,status); + return ROUTE_BROADCAST; } - - virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status) +}; + +class FilterBase : public Module +{ + CommandFilter filtcommand; + int flags; +protected: + std::vector exemptfromfilter; // List of channel names excluded from filtering. + public: + FilterBase(); + virtual ~FilterBase(); + virtual ModResult OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list); + virtual FilterResult* FilterMatch(User* user, const std::string &text, int flags) = 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, const std::string &flags) = 0; + virtual ModResult OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list); + virtual void OnRehash(User* user); + virtual Version GetVersion(); + std::string EncodeFilter(FilterResult* filter); + FilterResult DecodeFilter(const std::string &data); + virtual void OnSyncNetwork(Module* proto, void* opaque); + virtual void OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata); + virtual ModResult OnStats(char symbol, User* user, string_list &results) = 0; + virtual ModResult OnPreCommand(std::string &command, std::vector ¶meters, User *user, bool validated, const std::string &original_line); + bool AppliesToMe(User* user, FilterResult* filter, int flags); + void OnLoadModule(Module* mod); + virtual void ReadFilters(ConfigReader &MyConf) = 0; +}; + +CmdResult CommandFilter::Handle(const std::vector ¶meters, User *user) +{ + if (parameters.size() == 1) + { + /* Deleting a filter */ + if (Base->DeleteFilter(parameters[0])) + { + user->WriteServ("NOTICE %s :*** Removed filter '%s'", user->nick.c_str(), parameters[0].c_str()); + ServerInstance->SNO->WriteToSnoMask(IS_LOCAL(user) ? 'a' : 'A', std::string("FILTER: ")+user->nick+" removed filter '"+parameters[0]+"'"); + return CMD_SUCCESS; + } + else + { + user->WriteServ("NOTICE %s :*** Filter '%s' not found in list, try /stats s.", user->nick.c_str(), parameters[0].c_str()); + return CMD_FAILURE; + } + } + else { - std::string text2 = text+" "; - for (filter_t::iterator index = filters.begin(); index != filters.end(); index++) + /* Adding a filter */ + if (parameters.size() >= 4) { - if ((ServerInstance->MatchText(text2,index->first)) || (ServerInstance->MatchText(text,index->first))) + std::string freeform = parameters[0]; + std::string type = parameters[1]; + std::string flags = parameters[2]; + std::string reason; + long duration = 0; + + + if ((type != "gline") && (type != "none") && (type != "block") && (type != "kill") && (type != "silent")) { - Filter* f = (Filter*)index->second; - std::string target = ""; + user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', 'silent' and 'kill'.", user->nick.c_str(), type.c_str()); + return CMD_FAILURE; + } - if (target_type == TYPE_USER) + if (type == "gline") + { + if (parameters.size() >= 5) { - userrec* t = (userrec*)dest; - target = std::string(t->nick); + duration = ServerInstance->Duration(parameters[3]); + reason = parameters[4]; } - else if (target_type == TYPE_CHANNEL) + else { - chanrec* t = (chanrec*)dest; - target = std::string(t->name); + 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[3]; + } + std::pair result = Base->AddFilter(freeform, type, reason, duration, flags); + if (result.first) + { + user->WriteServ("NOTICE %s :*** Added filter '%s', type '%s'%s%s, flags '%s', reason: '%s'", user->nick.c_str(), freeform.c_str(), + type.c_str(), (duration ? ", duration " : ""), (duration ? parameters[3].c_str() : ""), + flags.c_str(), reason.c_str()); + + ServerInstance->SNO->WriteToSnoMask(IS_LOCAL(user) ? 'a' : 'A', std::string("FILTER: ")+user->nick+" added filter '"+freeform+"', type '"+type+"', "+(duration ? "duration "+parameters[3]+", " : "")+"flags '"+flags+"', reason: "+reason); + + return CMD_SUCCESS; + } + else + { + user->WriteServ("NOTICE %s :*** Filter '%s' could not be added: %s", user->nick.c_str(), freeform.c_str(), result.second.c_str()); + return CMD_FAILURE; + } + } + else + { + this->TooFewParams(user, "."); + return CMD_FAILURE; + } + + } +} + +bool FilterBase::AppliesToMe(User* user, FilterResult* filter, int iflags) +{ + if ((filter->flag_no_opers) && IS_OPER(user)) + return false; + if ((iflags & FLAG_PRIVMSG) && (!filter->flag_privmsg)) + return false; + if ((iflags & FLAG_NOTICE) && (!filter->flag_notice)) + return false; + if ((iflags & FLAG_QUIT) && (!filter->flag_quit_message)) + return false; + if ((iflags & FLAG_PART) && (!filter->flag_part_message)) + return false; + return true; +} - 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); - } - log(DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their notice filtered, target was ")+target+": "+f->reason+" Action: "+f->action); +FilterBase::FilterBase() : filtcommand(this) +{ + ServerInstance->Modules->UseInterface("RegularExpression"); + ServerInstance->AddCommand(&filtcommand); + Implementation eventlist[] = { I_OnPreCommand, I_OnStats, I_OnSyncNetwork, I_OnDecodeMetaData, I_OnUserPreMessage, I_OnUserPreNotice, I_OnRehash, I_OnLoadModule }; + ServerInstance->Modules->Attach(eventlist, this, 8); +} + +FilterBase::~FilterBase() +{ + ServerInstance->Modules->DoneWithInterface("RegularExpression"); +} + +ModResult FilterBase::OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) +{ + if (!IS_LOCAL(user)) + return MOD_RES_PASSTHRU; + + flags = FLAG_PRIVMSG; + return OnUserPreNotice(user,dest,target_type,text,status,exempt_list); +} + +ModResult FilterBase::OnUserPreNotice(User* 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 MOD_RES_PASSTHRU; - if (f->action == "kill") + if (!flags) + flags = FLAG_NOTICE; + + FilterResult* f = this->FilterMatch(user, text, flags); + if (f) + { + std::string target = ""; + if (target_type == TYPE_USER) + { + User* t = (User*)dest; + target = std::string(t->nick); + } + else if (target_type == TYPE_CHANNEL) + { + Channel* t = (Channel*)dest; + target = std::string(t->name); + std::vector::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), target); + if (i != exemptfromfilter.end()) return MOD_RES_PASSTHRU; + } + if (f->action == "block") + { + ServerInstance->SNO->WriteGlobalSno('a', std::string("FILTER: ")+user->nick+" had their message filtered, target was "+target+": "+f->reason); + if (target_type == TYPE_CHANNEL) + user->WriteNumeric(404, "%s %s :Message to channel blocked and opers notified (%s)",user->nick.c_str(), target.c_str(), f->reason.c_str()); + else + user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message to "+target+" was blocked and opers notified: "+f->reason); + } + if (f->action == "silent") + { + if (target_type == TYPE_CHANNEL) + user->WriteNumeric(404, "%s %s :Message to channel blocked (%s)",user->nick.c_str(), target.c_str(), f->reason.c_str()); + else + user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message to "+target+" was blocked: "+f->reason); + } + if (f->action == "kill") + { + ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason); + } + if (f->action == "gline") + { + GLine* gl = new GLine(ServerInstance->Time(), f->gline_time, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), "*", user->GetIPString()); + if (ServerInstance->XLines->AddLine(gl,NULL)) + { + ServerInstance->XLines->ApplyLines(); + } + else + delete gl; + } + + ServerInstance->Logs->Log("FILTER",DEFAULT,"FILTER: "+ user->nick + " had their message filtered, target was " + target + ": " + f->reason + " Action: " + f->action); + return MOD_RES_DENY; + } + return MOD_RES_PASSTHRU; +} + +ModResult FilterBase::OnPreCommand(std::string &command, std::vector ¶meters, User *user, bool validated, const std::string &original_line) +{ + flags = 0; + if (validated && IS_LOCAL(user)) + { + std::string checkline; + int replacepoint = 0; + bool parting = false; + + if (command == "QUIT") + { + /* QUIT with no reason: nothing to do */ + if (parameters.size() < 1) + return MOD_RES_PASSTHRU; + + checkline = parameters[0]; + replacepoint = 0; + parting = false; + flags = FLAG_QUIT; + } + else if (command == "PART") + { + /* PART with no reason: nothing to do */ + if (parameters.size() < 2) + return MOD_RES_PASSTHRU; + + std::vector::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), parameters[0]); + if (i != exemptfromfilter.end()) return MOD_RES_PASSTHRU; + checkline = parameters[1]; + replacepoint = 1; + parting = true; + flags = FLAG_PART; + } + else + /* We're only messing with PART and QUIT */ + return MOD_RES_PASSTHRU; + + FilterResult* f = NULL; + + if (flags) + f = this->FilterMatch(user, checkline, flags); + + if (!f) + /* PART or QUIT reason doesnt match a filter */ + return MOD_RES_PASSTHRU; + + /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */ + Command* c = ServerInstance->Parser->GetHandler(command); + if (c) + { + std::vector params; + for (int item = 0; item < (int)parameters.size(); item++) + params.push_back(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"))) || (f->action == "silent")) + { + c->Handle(params, user); + return MOD_RES_DENY; + } + else + { + /* Are they parting, if so, kill is applicable */ + if ((parting) && (f->action == "kill")) { - userrec::QuitUser(ServerInstance,user,f->reason); + user->WriteServ("NOTICE %s :*** Your PART message was filtered: %s", user->nick.c_str(), f->reason.c_str()); + ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason); } - return 1; + if (f->action == "gline") + { + /* Note: We gline *@IP so that if their host doesnt resolve the gline still applies. */ + GLine* gl = new GLine(ServerInstance->Time(), f->gline_time, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), "*", user->GetIPString()); + if (ServerInstance->XLines->AddLine(gl,NULL)) + { + ServerInstance->XLines->ApplyLines(); + } + else + delete gl; + } + return MOD_RES_DENY; } } - return 0; + return MOD_RES_PASSTHRU; } - - virtual void OnRehash(const std::string ¶meter) + return MOD_RES_PASSTHRU; +} + +void FilterBase::OnRehash(User* user) +{ + ConfigReader MyConf; + std::vector().swap(exemptfromfilter); + for (int index = 0; index < MyConf.Enumerate("exemptfromfilter"); ++index) { - // reload our config file on rehash - we must destroy and re-allocate the classes - // to call the constructor again and re-read our data. - ConfigReader* Conf = new ConfigReader(ServerInstance); - std::string filterfile = Conf->ReadValue("filter","file",0); - // this automatically re-reads the configuration file into the class - ConfigReader* MyConf = new ConfigReader(ServerInstance, filterfile); - if ((filterfile == "") || (!MyConf->Verify())) - { - // bail if the user forgot to create a config file - FilterException e; - throw(e); + std::string chan = MyConf.ReadValue("exemptfromfilter", "channel", index); + if (!chan.empty()) { + exemptfromfilter.push_back(chan); } - for (filter_t::iterator n = filters.begin(); n != filters.end(); n++) + } + std::string newrxengine = MyConf.ReadValue("filteropts", "engine", 0); + if (!RegexEngine.empty()) + { + if (RegexEngine == newrxengine) + return; + + ServerInstance->SNO->WriteGlobalSno('a', "Dumping all filters due to regex engine change (was '%s', now '%s')", RegexEngine.c_str(), newrxengine.c_str()); + //ServerInstance->XLines->DelAll("R"); + } + rxengine = NULL; + + RegexEngine = newrxengine; + modulelist* ml = ServerInstance->Modules->FindInterface("RegularExpression"); + if (ml) + { + for (modulelist::iterator i = ml->begin(); i != ml->end(); ++i) { - DELETE(n->second); + if (RegexNameRequest(this, *i).result == newrxengine) + { + ServerInstance->SNO->WriteGlobalSno('a', "Filter now using engine '%s'", RegexEngine.c_str()); + rxengine = *i; + } } - filters.clear(); - for (int index = 0; index < MyConf->Enumerate("keyword"); index++) + } + if (!rxengine) + { + ServerInstance->SNO->WriteGlobalSno('a', "WARNING: Regex engine '%s' is not loaded - Filter functionality disabled until this is corrected.", RegexEngine.c_str()); + } +} + +void FilterBase::OnLoadModule(Module* mod) +{ + if (ServerInstance->Modules->ModuleHasInterface(mod, "RegularExpression")) + { + std::string rxname = RegexNameRequest(this, mod).result; + if (rxname == RegexEngine) { - std::string pattern = MyConf->ReadValue("keyword","pattern",index); - std::string reason = MyConf->ReadValue("keyword","reason",index); - std::string do_action = MyConf->ReadValue("keyword","action",index); - if (do_action == "") - do_action = "none"; - Filter* x = new Filter; - x->reason = reason; - x->action = do_action; - filters[pattern] = x; + rxengine = mod; + /* Force a rehash to make sure that any filters that couldnt be applied from the conf + * on startup or on load are applied right now. + */ + ConfigReader Config; + ServerInstance->SNO->WriteGlobalSno('a', "Found and activated regex module '%s' for m_filter.so.", RegexEngine.c_str()); + ReadFilters(Config); } - log(DEFAULT,"m_filter: read configuration from "+filterfile); - DELETE(Conf); - DELETE(MyConf); } - - virtual Version GetVersion() +} + + +Version FilterBase::GetVersion() +{ + return Version("Text (spam) filtering", VF_VENDOR | VF_COMMON); +} + + +std::string FilterBase::EncodeFilter(FilterResult* filter) +{ + std::ostringstream stream; + std::string x = filter->freeform; + + /* Hax to allow spaces in the freeform without changing the design of the irc protocol */ + for (std::string::iterator n = x.begin(); n != x.end(); n++) + if (*n == ' ') + *n = '\7'; + + stream << x << " " << filter->action << " " << (filter->flags.empty() ? "-" : filter->flags) << " " << filter->gline_time << " :" << filter->reason; + return stream.str(); +} + +FilterResult FilterBase::DecodeFilter(const std::string &data) +{ + FilterResult res; + irc::tokenstream tokens(data); + tokens.GetToken(res.freeform); + tokens.GetToken(res.action); + tokens.GetToken(res.flags); + if (res.flags == "-") + res.flags = ""; + res.FillFlags(res.flags); + tokens.GetToken(res.gline_time); + tokens.GetToken(res.reason); + + /* Hax to allow spaces in the freeform without changing the design of the irc protocol */ + for (std::string::iterator n = res.freeform.begin(); n != res.freeform.end(); n++) + if (*n == '\7') + *n = ' '; + + return res; +} + +void FilterBase::OnSyncNetwork(Module* proto, void* opaque) +{ + this->SyncFilters(proto, opaque); +} + +void FilterBase::SendFilter(Module* proto, void* opaque, FilterResult* iter) +{ + proto->ProtoSendMetaData(opaque, NULL, "filter", EncodeFilter(iter)); +} + +void FilterBase::OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata) +{ + if ((target == NULL) && (extname == "filter")) { - // This is version 2 because version 1.x is the unreleased unrealircd module - return Version(2,0,0,2,VF_VENDOR); + FilterResult data = DecodeFilter(extdata); + this->AddFilter(data.freeform, data.action, data.reason, data.gline_time, data.flags); + } +} + +class ImplFilter : public FilterResult +{ + public: + Regex* regex; + + ImplFilter(Module* mymodule, const std::string &rea, const std::string &act, long glinetime, const std::string &pat, const std::string &flgs) + : FilterResult(pat, rea, act, glinetime, flgs) + { + if (!rxengine) + throw ModuleException("Regex module implementing '"+RegexEngine+"' is not loaded!"); + + regex = RegexFactoryRequest(mymodule, rxengine, pat).Create(); } - -}; -// stuff down here is the module-factory stuff. For basic modules you can ignore this. + ImplFilter() + { + } +}; -class ModuleFilterFactory : public ModuleFactory +class ModuleFilter : public FilterBase { + std::vector filters; + const char *error; + int erroffset; + ImplFilter fr; + public: - ModuleFilterFactory() + ModuleFilter() + { + OnRehash(NULL); + } + + virtual ~ModuleFilter() { } - - ~ModuleFilterFactory() + + virtual FilterResult* FilterMatch(User* user, const std::string &text, int flgs) { + for (std::vector::iterator index = filters.begin(); index != filters.end(); index++) + { + /* Skip ones that dont apply to us */ + if (!FilterBase::AppliesToMe(user, dynamic_cast(&(*index)), flgs)) + continue; + + //ServerInstance->Logs->Log("m_filter", DEBUG, "Match '%s' against '%s'", text.c_str(), index->freeform.c_str()); + if (index->regex->Matches(text)) + { + //ServerInstance->Logs->Log("m_filter", DEBUG, "MATCH"); + fr = *index; + if (index != filters.begin()) + { + /* Move to head of list for efficiency */ + filters.erase(index); + filters.insert(filters.begin(), fr); + } + return &fr; + } + //ServerInstance->Logs->Log("m_filter", DEBUG, "NO MATCH"); + } + return NULL; } - - virtual Module * CreateModule(InspIRCd* Me) + + virtual bool DeleteFilter(const std::string &freeform) { - return new ModuleFilter(Me); + for (std::vector::iterator i = filters.begin(); i != filters.end(); i++) + { + if (i->freeform == freeform) + { + delete i->regex; + filters.erase(i); + return true; + } + } + return false; } - -}; + virtual void SyncFilters(Module* proto, void* opaque) + { + for (std::vector::iterator i = filters.begin(); i != filters.end(); i++) + { + this->SendFilter(proto, opaque, &(*i)); + } + } -extern "C" void * init_module( void ) -{ - return new ModuleFilterFactory; -} + virtual std::pair AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flgs) + { + for (std::vector::iterator i = filters.begin(); i != filters.end(); i++) + { + if (i->freeform == freeform) + { + return std::make_pair(false, "Filter already exists"); + } + } + + try + { + filters.push_back(ImplFilter(this, reason, type, duration, freeform, flgs)); + } + catch (ModuleException &e) + { + ServerInstance->Logs->Log("m_filter", DEFAULT, "Error in regular expression '%s': %s", freeform.c_str(), e.GetReason()); + return std::make_pair(false, e.GetReason()); + } + return std::make_pair(true, ""); + } + + virtual void OnRehash(User* user) + { + ConfigReader MyConf; + FilterBase::OnRehash(user); + ReadFilters(MyConf); + } + + void ReadFilters(ConfigReader &MyConf) + { + for (int index = 0; index < MyConf.Enumerate("keyword"); index++) + { + this->DeleteFilter(MyConf.ReadValue("keyword", "pattern", index)); + + std::string pattern = MyConf.ReadValue("keyword", "pattern", index); + std::string reason = MyConf.ReadValue("keyword", "reason", index); + std::string action = MyConf.ReadValue("keyword", "action", index); + std::string flgs = MyConf.ReadValue("keyword", "flags", index); + long gline_time = ServerInstance->Duration(MyConf.ReadValue("keyword", "duration", index)); + if (action.empty()) + action = "none"; + if (flgs.empty()) + flgs = "*"; + + try + { + filters.push_back(ImplFilter(this, reason, action, gline_time, pattern, flgs)); + ServerInstance->Logs->Log("m_filter", DEFAULT, "Regular expression %s loaded.", pattern.c_str()); + } + catch (ModuleException &e) + { + ServerInstance->Logs->Log("m_filter", DEFAULT, "Error in regular expression '%s': %s", pattern.c_str(), e.GetReason()); + } + } + } + + virtual ModResult OnStats(char symbol, User* user, string_list &results) + { + if (symbol == 's') + { + std::string sn = ServerInstance->Config->ServerName; + for (std::vector::iterator i = filters.begin(); i != filters.end(); i++) + { + results.push_back(sn+" 223 "+user->nick+" :"+RegexEngine+":"+i->freeform+" "+i->flags+" "+i->action+" "+ConvToStr(i->gline_time)+" :"+i->reason); + } + for (std::vector::iterator i = exemptfromfilter.begin(); i != exemptfromfilter.end(); ++i) + { + results.push_back(sn+" 223 "+user->nick+" :EXEMPT "+(*i)); + } + } + return MOD_RES_PASSTHRU; + } +}; +MODULE_INIT(ModuleFilter)