X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_filter.h;h=e1f97bd72855fc15718f296a7496bca0cf490ed0;hb=da074814501f23680b579feb1ad649c86e8a1348;hp=6d640f1a681a7554c8c9f6427ec9aab14be5e1c0;hpb=e5ea4ee3fb5bf03f16442527d17e29daea77ec28;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_filter.h b/src/modules/m_filter.h index 6d640f1a6..e1f97bd72 100644 --- a/src/modules/m_filter.h +++ b/src/modules/m_filter.h @@ -2,12 +2,9 @@ * | 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. * @@ -16,6 +13,14 @@ #include "xline.h" +enum FilterFlags +{ + FLAG_PART = 2, + FLAG_QUIT = 4, + FLAG_PRIVMSG = 8, + FLAG_NOTICE = 16 +}; + class FilterResult : public classbase { public: @@ -23,9 +28,55 @@ class FilterResult : public classbase std::string reason; std::string action; long gline_time; + std::string flags; + + bool flag_no_opers; + bool flag_part_message; + bool flag_quit_message; + bool flag_privmsg; + bool flag_notice; - FilterResult(const std::string free, const std::string &rea, const std::string &act, long gt) : freeform(free), reason(rea), action(act), gline_time(gt) + 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() @@ -37,45 +88,46 @@ class FilterResult : public classbase } }; -class cmd_filter; +class CommandFilter; class FilterBase : public Module { - cmd_filter* filtcommand; + CommandFilter* filtcommand; + int flags; +protected: + std::vector exemptfromfilter; // List of channel names excluded from filtering. public: 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); - - virtual FilterResult* FilterMatch(const std::string &text) = 0; + virtual int 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) = 0; - virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status); - virtual void OnRehash(const std::string ¶meter); + virtual std::pair AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flags) = 0; + virtual int OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list); + virtual void OnRehash(User* 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 OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable = false); 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 OnStats(char symbol, User* user, string_list &results) = 0; + virtual int OnPreCommand(const std::string &command, const char* const* parameters, int pcnt, User *user, bool validated, const std::string &original_line); + bool AppliesToMe(User* user, FilterResult* filter, int flags); }; -class cmd_filter : public command_t +class CommandFilter : public Command { FilterBase* Base; public: - cmd_filter(FilterBase* f, InspIRCd* Me, const std::string &source) : command_t(Me, "FILTER", 'o', 1), Base(f) + CommandFilter(FilterBase* f, InspIRCd* Me, const std::string &ssource) : Command(Me, "FILTER", "o", 1), Base(f) { - this->source = source; - this->syntax = " [] :"; + this->source = ssource; + this->syntax = " [] :"; } - CmdResult Handle(const char** parameters, int pcnt, userrec *user) + CmdResult Handle(const char* const* parameters, int pcnt, User *user) { if (pcnt == 1) { @@ -94,25 +146,27 @@ class cmd_filter : public command_t else { /* Adding a filter */ - if (pcnt >= 3) + if (pcnt >= 4) { 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")) + + if ((type != "gline") && (type != "none") && (type != "block") && (type != "kill") && (type != "silent")) { - user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', and 'kill'.", user->nick, freeform.c_str()); + user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', 'silent' and 'kill'.", user->nick, freeform.c_str()); return CMD_FAILURE; } if (type == "gline") { - if (pcnt >= 4) + if (pcnt >= 5) { - duration = ServerInstance->Duration(parameters[2]); - reason = parameters[3]; + duration = ServerInstance->Duration(parameters[3]); + reason = parameters[4]; } else { @@ -122,14 +176,14 @@ class cmd_filter : public command_t } else { - reason = parameters[2]; + reason = parameters[3]; } - std::pair result = Base->AddFilter(freeform, type, reason, duration); + std::pair result = Base->AddFilter(freeform, type, reason, duration, flags); 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()); + user->WriteServ("NOTICE %s :*** Added filter '%s', type '%s'%s%s, flags '%s', reason: '%s'", user->nick, freeform.c_str(), + type.c_str(), (duration ? " duration: " : ""), (duration ? parameters[3] : ""), + flags.c_str(), reason.c_str()); return CMD_SUCCESS; } else @@ -147,100 +201,246 @@ class cmd_filter : public command_t } } - void TooFewParams(userrec* user, const std::string &extra_text) + void TooFewParams(User* user, const std::string &extra_text) { user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick, extra_text.c_str()); } }; -FilterBase::FilterBase(InspIRCd* Me, const std::string &source) : Module::Module(Me) +bool FilterBase::AppliesToMe(User* user, FilterResult* filter, int iflags) { - filtcommand = new cmd_filter(this, Me, source); - ServerInstance->AddCommand(filtcommand); + 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; } -FilterBase::~FilterBase() +FilterBase::FilterBase(InspIRCd* Me, const std::string &source) : Module(Me) { + filtcommand = new CommandFilter(this, Me, source); + ServerInstance->AddCommand(filtcommand); + Implementation eventlist[] = { I_OnPreCommand, I_OnStats, I_OnSyncOtherMetaData, I_OnDecodeMetaData, I_OnUserPreMessage, I_OnUserPreNotice, I_OnRehash }; + ServerInstance->Modules->Attach(eventlist, this, 7); } -void FilterBase::Implements(char* List) +FilterBase::~FilterBase() { - List[I_OnStats] = List[I_OnSyncOtherMetaData] = List[I_OnDecodeMetaData] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1; } -int FilterBase::OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status) +int FilterBase::OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) { - return OnUserPreNotice(user,dest,target_type,text,status); + flags = FLAG_PRIVMSG; + 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) +int FilterBase::OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) { - FilterResult* f = this->FilterMatch(text); + if (!flags) + flags = FLAG_NOTICE; + + /* Leave ulines alone */ + if ((ServerInstance->ULine(user->server)) || (!IS_LOCAL(user))) + return 0; + + FilterResult* f = this->FilterMatch(user, text, flags); if (f) { std::string target = ""; if (target_type == TYPE_USER) { - userrec* t = (userrec*)dest; + User* t = (User*)dest; target = std::string(t->nick); } else if (target_type == TYPE_CHANNEL) { - chanrec* t = (chanrec*)dest; + Channel* t = (Channel*)dest; target = std::string(t->name); + std::vector::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), target); + if (i != exemptfromfilter.end()) return 0; } 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->SNO->WriteToSnoMask('A', std::string("FILTER: ")+user->nick+" had their message filtered, target was "+target+": "+f->reason); + user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message has been filtered and opers notified: "+f->reason); + } + if (f->action == "silent") + { + user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message has been filtered: "+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,f->reason); + User::QuitUser(ServerInstance,user,"Filtered: "+f->reason); } if (f->action == "gline") { - if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), user->MakeHostIP())) + GLine* gl = new GLine(ServerInstance, ServerInstance->Time(), f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), "*", user->GetIPString()); + if (ServerInstance->XLines->AddLine(gl,NULL)) { - ServerInstance->XLines->apply_lines(APPLY_GLINES); - FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP())); + ServerInstance->XLines->ApplyLines(); } + else + delete gl; } + + ServerInstance->Logs->Log("FILTER",DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their message filtered, target was ")+target+": "+f->reason+" Action: "+f->action); return 1; } return 0; } -void FilterBase::OnRehash(const std::string ¶meter) +int FilterBase::OnPreCommand(const std::string &command, const char* const* parameters, int pcnt, User *user, bool validated, const std::string &original_line) { -} + flags = 0; + 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; + flags = FLAG_QUIT; + } + else if (command == "PART") + { + /* PART with no reason: nothing to do */ + if (pcnt < 2) + return 0; + + std::vector::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), parameters[0]); + if (i != exemptfromfilter.end()) return 0; + checkline = parameters[1]; + replacepoint = 1; + parting = true; + flags = FLAG_PART; + } + else + /* We're only messing with PART and QUIT */ + return 0; + + FilterResult* f = NULL; + + if (flags) + f = this->FilterMatch(user, checkline, flags); + + if (!f) + /* PART or QUIT reason doesnt match a filter */ + return 0; + + /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */ + Command* c = ServerInstance->Parser->GetHandler(command); + if (c) + { + const char* params[MAXPARAMETERS]; + 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"))) || (f->action == "silent")) + { + c->Handle(params, pcnt, user); + return 1; + } + else + { + /* Are they parting, if so, kill is applicable */ + if ((parting) && (f->action == "kill")) + { + user->WriteServ("NOTICE %s :*** Your PART message was filtered: %s", user->nick, f->reason.c_str()); + User::QuitUser(ServerInstance, user, "Filtered: " + f->reason); + } + if (f->action == "gline") + { + /* Note: We gline *@IP so that if their host doesnt resolve the gline still applies. */ + GLine* gl = new GLine(ServerInstance, ServerInstance->Time(), f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), "*", user->GetIPString()); + if (ServerInstance->XLines->AddLine(gl,NULL)) + { + ServerInstance->XLines->ApplyLines(); + } + else + delete gl; + } + return 1; + } + } + return 0; + } + return 0; +} + +void FilterBase::OnRehash(User* user, const std::string ¶meter) +{ + ConfigReader* MyConf = new ConfigReader(ServerInstance); + std::vector().swap(exemptfromfilter); + for (int index = 0; index < MyConf->Enumerate("exemptfromfilter"); ++index) + { + std::string chan = MyConf->ReadValue("exemptfromfilter", "channel", index); + if (!chan.empty()) { + exemptfromfilter.push_back(chan); + } + } + delete MyConf; +} + Version FilterBase::GetVersion() { - return Version(1,1,0,2,VF_VENDOR,API_VERSION); + return Version(1,1,0,2,VF_VENDOR|VF_COMMON,API_VERSION); } std::string FilterBase::EncodeFilter(FilterResult* filter) { std::ostringstream stream; - stream << filter->freeform << " " << filter->action << " " << filter->gline_time << " " << filter->reason; + 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; - std::istringstream stream(data); - stream >> res.freeform; - stream >> res.action; - stream >> res.gline_time; - res.reason = stream.str(); + 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::OnSyncOtherMetaData(Module* proto, void* opaque) +void FilterBase::OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable) { this->SyncFilters(proto, opaque); } @@ -255,7 +455,7 @@ void FilterBase::OnDecodeMetaData(int target_type, void* target, const std::stri if ((target_type == TYPE_OTHER) && (extname == "filter")) { FilterResult data = DecodeFilter(extdata); - this->AddFilter(data.freeform, data.action, data.reason, data.gline_time); + this->AddFilter(data.freeform, data.action, data.reason, data.gline_time, data.flags); } }