/* +------------------------------------+ * | 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 "inspircd.h" #include /* $ModDesc: Allows for delay-join channels (+D) where users dont appear to join until they speak */ class DelayJoinMode : public ModeHandler { CUList empty; Module* Creator; public: DelayJoinMode(InspIRCd* Instance, Module* Parent) : ModeHandler(Instance, 'D', 0, 0, false, MODETYPE_CHANNEL, false), Creator(Parent) { } ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool) { if (channel->IsModeSet('D') != adding) { if (IS_LOCAL(source) && (channel->GetStatus(source) < STATUS_OP)) { source->WriteNumeric(482, "%s %s :Only channel operators may %sset channel mode +D", source->nick, channel->name, adding ? "" : "un"); return MODEACTION_DENY; } else { if (channel->IsModeSet('D')) { /* Make all delayed join users visible, or if an op removes +D * while users exist that havent spoken, they remain permenantly * invisible on this channel! */ CUList* names = channel->GetUsers(); for (CUListIter n = names->begin(); n != names->end(); ++n) Creator->OnText(n->first, channel, TYPE_CHANNEL, "", 0, empty); } channel->SetMode('D', adding); return MODEACTION_ALLOW; } } else { return MODEACTION_DENY; } } }; class ModuleDelayJoin : public Module { private: DelayJoinMode* djm; CUList nl; public: ModuleDelayJoin(InspIRCd* Me) : Module(Me) { djm = new DelayJoinMode(ServerInstance, this); if (!ServerInstance->Modes->AddMode(djm)) throw ModuleException("Could not add new modes!"); Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnUserQuit, I_OnNamesListItem, I_OnText }; ServerInstance->Modules->Attach(eventlist, this, 6); } virtual ~ModuleDelayJoin() { ServerInstance->Modes->DelMode(djm); delete djm; } virtual Version GetVersion() { return Version(1, 2, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION); } virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick) { if (!channel->IsModeSet('D')) return; if (nick.empty()) return; /* If the user is hidden by delayed join, hide them from the NAMES list */ std::string key("delayjoin_"); key.append(channel->name); if (user->GetExt(key)) nick.clear(); } virtual void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent) { if (channel->IsModeSet('D')) { silent = true; /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */ user->WriteFrom(user, "JOIN %s", channel->name); /* This metadata tells the module the user is delayed join on this specific channel */ user->Extend(std::string("delayjoin_")+channel->name); /* This metadata tells the module the user is delayed join on at least one (or more) channels. * It is only cleared when the user is no longer on ANY +D channels. */ if (!user->GetExt("delayjoin")) user->Extend("delayjoin"); } } void OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent) { if (channel->IsModeSet('D')) { if (user->GetExt(std::string("delayjoin_")+channel->name)) { silent = true; /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */ user->WriteFrom(user, "PART %s%s%s", channel->name, partmessage.empty() ? "" : " :", partmessage.empty() ? "" : partmessage.c_str()); } } } void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent) { if (chan->IsModeSet('D')) { /* Send silenced event only to the user being kicked and the user doing the kick */ if (user->GetExt(std::string("delayjoin_")+chan->name)) { silent = true; user->WriteFrom(source, "KICK %s %s %s", chan->name, user->nick, reason.c_str()); } } } void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message) { Command* parthandler = ServerInstance->Parser->GetHandler("PART"); std::vector parameters; if (parthandler && user->GetExt("delayjoin")) { for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++) { parameters[0] = f->first->name; /* This triggers our OnUserPart, above, making the PART silent */ parthandler->Handle(parameters, user); } } } void OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list) { /* Server origin */ if (!user) return; if (target_type != TYPE_CHANNEL) return; Channel* channel = (Channel*) dest; if (!user->GetExt(std::string("delayjoin_")+channel->name)) return; /* Display the join to everyone else (the user who joined got it earlier) */ this->WriteCommonFrom(user, channel, "JOIN %s", channel->name); std::string n = this->ServerInstance->Modes->ModeString(user, channel); if (n.length() > 0) this->WriteCommonFrom(user, channel, "MODE %s +%s", channel->name, n.c_str()); /* Shrink off the neccessary metadata for a specific channel */ user->Shrink(std::string("delayjoin_")+channel->name); /* Check if the user is left on any other +D channels, if so don't take away the * metadata that says theyre on one or more channels */ for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++) if (f->first->IsModeSet('D')) return; user->Shrink("delayjoin"); } void WriteCommonFrom(User *user, Channel* channel, const char* text, ...) CUSTOM_PRINTF(4, 5) { va_list argsPtr; char textbuffer[MAXBUF]; char tb[MAXBUF]; va_start(argsPtr, text); vsnprintf(textbuffer, MAXBUF, text, argsPtr); va_end(argsPtr); snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),textbuffer); CUList *ulist = channel->GetUsers(); for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) { /* User doesnt get a JOIN sent to themselves */ if (user == i->first) continue; /* Users with a visibility state that hides them dont appear */ if (user->Visibility && !user->Visibility->VisibleTo(i->first)) continue; i->first->Write(std::string(tb)); } } }; MODULE_INIT(ModuleDelayJoin)