diff options
Diffstat (limited to 'src/modules')
| -rw-r--r-- | src/modules/m_filter.h | 461 |
1 files changed, 0 insertions, 461 deletions
diff --git a/src/modules/m_filter.h b/src/modules/m_filter.h deleted file mode 100644 index 35d777a2f..000000000 --- a/src/modules/m_filter.h +++ /dev/null @@ -1,461 +0,0 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ - * - * 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. - * - * --------------------------------------------------- - */ - -#include "xline.h" - -enum FilterFlags -{ - FLAG_PART = 2, - FLAG_QUIT = 4, - FLAG_PRIVMSG = 8, - FLAG_NOTICE = 16 -}; - -class FilterResult : public classbase -{ - public: - std::string freeform; - 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, 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() - { - } -}; - -class CommandFilter; - -class FilterBase : public Module -{ - CommandFilter* filtcommand; - int flags; -protected: - std::vector<std::string> exemptfromfilter; // List of channel names excluded from filtering. - public: - FilterBase(InspIRCd* Me, const std::string &source); - virtual ~FilterBase(); - 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<bool, std::string> 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, bool displayable = false); - virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata); - virtual int OnStats(char symbol, User* user, string_list &results) = 0; - virtual int OnPreCommand(std::string &command, std::vector<std::string> ¶meters, User *user, bool validated, const std::string &original_line); - bool AppliesToMe(User* user, FilterResult* filter, int flags); -}; - -class CommandFilter : public Command -{ - FilterBase* Base; - public: - CommandFilter(FilterBase* f, InspIRCd* Me, const std::string &ssource) : Command(Me, "FILTER", "o", 1), Base(f) - { - this->source = ssource; - this->syntax = "<filter-definition> <type> <flags> [<gline-duration>] :<reason>"; - } - - CmdResult Handle(const std::vector<std::string> ¶meters, User *user) - { - if (parameters.size() == 1) - { - /* Deleting a filter */ - if (Base->DeleteFilter(parameters[0])) - { - user->WriteServ("NOTICE %s :*** Deleted filter '%s'", user->nick.c_str(), parameters[0].c_str()); - return CMD_SUCCESS; - } - else - { - user->WriteServ("NOTICE %s :*** Filter '%s' not found on list.", user->nick.c_str(), parameters[0].c_str()); - return CMD_FAILURE; - } - } - else - { - /* Adding a filter */ - if (parameters.size() >= 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") && (type != "silent")) - { - user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', 'silent' and 'kill'.", user->nick.c_str(), freeform.c_str()); - return CMD_FAILURE; - } - - if (type == "gline") - { - if (parameters.size() >= 5) - { - duration = ServerInstance->Duration(parameters[3]); - reason = parameters[4]; - } - 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[3]; - } - std::pair<bool, std::string> 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()); - 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; - } - - } - } - - void TooFewParams(User* user, const std::string &extra_text) - { - user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick.c_str(), extra_text.c_str()); - } -}; - -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; -} - -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); -} - -FilterBase::~FilterBase() -{ -} - -int FilterBase::OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) -{ - flags = FLAG_PRIVMSG; - return OnUserPreNotice(user,dest,target_type,text,status,exempt_list); -} - -int FilterBase::OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) -{ - 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) - { - 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<std::string>::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), target); - if (i != exemptfromfilter.end()) return 0; - } - if (f->action == "block") - { - 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); - } - if (f->action == "kill") - { - ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason); - } - if (f->action == "gline") - { - 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; - } - - ServerInstance->Logs->Log("FILTER",DEFAULT,"FILTER: "+ user->nick + " had their message filtered, target was " + target + ": " + f->reason + " Action: " + f->action); - return 1; - } - return 0; -} - -int FilterBase::OnPreCommand(std::string &command, std::vector<std::string> ¶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 0; - - 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 0; - - std::vector<std::string>::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) - { - std::vector<std::string> 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 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.c_str(), f->reason.c_str()); - ServerInstance->Users->QuitUser(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<std::string>().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("$Id$", VF_VENDOR | VF_COMMON, API_VERSION); -} - - -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::OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable) -{ - 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")) - { - FilterResult data = DecodeFilter(extdata); - this->AddFilter(data.freeform, data.action, data.reason, data.gline_time, data.flags); - } -} - |