// format of a config entry is <badword text="shit" replace="poo"> virtual int OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) { if (!IS_LOCAL(user)) return 0; bool active = false; if (target_type == TYPE_USER) active = ((User*)dest)->IsModeSet('G'); else if (target_type == TYPE_CHANNEL) { active = ((Channel*)dest)->IsModeSet('G'); Channel* c = (Channel*)dest; if (CHANOPS_EXEMPT(ServerInstance, 'G') && c->GetStatus(user) == STATUS_OP) { return 0; } } if (!active) return 0; irc::string text2 = text.c_str(); for (censor_t::iterator index = censors.begin(); index != censors.end(); index++) { if (text2.find(index->first) != irc::string::npos) { if (index->second.empty()) { user->WriteNumeric(ERR_WORDFILTERED, "%s %s %s :Your message contained a censored word, and was blocked", user->nick.c_str(), ((Channel*)dest)->name.c_str(), index->first.c_str()); return 1; } SearchAndReplace(text2, index->first, index->second); } } text = text2.c_str(); return 0; }
CmdResult CommandNotice::Handle (const std::vector<std::string>& parameters, User *user) { User *dest; Channel *chan; CUList exempt_list; user->idle_lastmsg = ServerInstance->Time(); if (ServerInstance->Parser->LoopCall(user, this, parameters, 0)) return CMD_SUCCESS; if (parameters[0][0] == '$') { if (!user->HasPrivPermission("users/mass-message")) return CMD_SUCCESS; int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(I_OnUserPreNotice,OnUserPreNotice(user, (void*)parameters[0].c_str(), TYPE_SERVER, temp, 0, exempt_list)); if (MOD_RESULT) return CMD_FAILURE; const char* text = temp.c_str(); const char* servermask = (parameters[0].c_str()) + 1; FOREACH_MOD(I_OnText,OnText(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, exempt_list)); if (InspIRCd::Match(ServerInstance->Config->ServerName,servermask, NULL)) { user->SendAll("NOTICE", "%s", text); } FOREACH_MOD(I_OnUserNotice,OnUserNotice(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, exempt_list)); return CMD_SUCCESS; } char status = 0; const char* target = parameters[0].c_str(); if (ServerInstance->Modes->FindPrefix(*target)) { status = *target; target++; } if (*target == '#') { chan = ServerInstance->FindChan(target); exempt_list[user] = user->nick; if (chan) { if (IS_LOCAL(user)) { if ((chan->IsModeSet('n')) && (!chan->HasUser(user))) { user->WriteNumeric(404, "%s %s :Cannot send to channel (no external messages)", user->nick.c_str(), chan->name.c_str()); return CMD_FAILURE; } if ((chan->IsModeSet('m')) && (chan->GetStatus(user) < STATUS_VOICE)) { user->WriteNumeric(404, "%s %s :Cannot send to channel (+m)", user->nick.c_str(), chan->name.c_str()); return CMD_FAILURE; } } int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(I_OnUserPreNotice,OnUserPreNotice(user,chan,TYPE_CHANNEL,temp,status, exempt_list)); if (MOD_RESULT) { return CMD_FAILURE; } const char* text = temp.c_str(); if (temp.empty()) { user->WriteNumeric(412, "%s :No text to send", user->nick.c_str()); return CMD_FAILURE; } FOREACH_MOD(I_OnText,OnText(user,chan,TYPE_CHANNEL,text,status,exempt_list)); if (status) { if (ServerInstance->Config->UndernetMsgPrefix) { chan->WriteAllExcept(user, false, status, exempt_list, "NOTICE %c%s :%c %s", status, chan->name.c_str(), status, text); } else { chan->WriteAllExcept(user, false, status, exempt_list, "NOTICE %c%s :%s", status, chan->name.c_str(), text); } } else { chan->WriteAllExcept(user, false, status, exempt_list, "NOTICE %s :%s", chan->name.c_str(), text); } FOREACH_MOD(I_OnUserNotice,OnUserNotice(user,chan,TYPE_CHANNEL,text,status,exempt_list)); } else { /* no such nick/channel */ user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), target); return CMD_FAILURE; } return CMD_SUCCESS; } const char* destnick = parameters[0].c_str(); if (IS_LOCAL(user)) { const char* targetserver = strchr(destnick, '@'); if (targetserver) { std::string nickonly; nickonly.assign(destnick, 0, targetserver - destnick); dest = ServerInstance->FindNickOnly(nickonly); if (dest && strcasecmp(dest->server, targetserver + 1)) { /* Incorrect server for user */ user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str()); return CMD_FAILURE; } } else dest = ServerInstance->FindNickOnly(destnick); } else dest = ServerInstance->FindNick(destnick); if (dest) { if (parameters[1].empty()) { user->WriteNumeric(412, "%s :No text to send", user->nick.c_str()); return CMD_FAILURE; } int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(I_OnUserPreNotice,OnUserPreNotice(user,dest,TYPE_USER,temp,0,exempt_list)); if (MOD_RESULT) { return CMD_FAILURE; } const char* text = temp.c_str(); FOREACH_MOD(I_OnText,OnText(user,dest,TYPE_USER,text,0,exempt_list)); if (IS_LOCAL(dest)) { // direct write, same server user->WriteTo(dest, "NOTICE %s :%s", dest->nick.c_str(), text); } FOREACH_MOD(I_OnUserNotice,OnUserNotice(user,dest,TYPE_USER,text,0,exempt_list)); } else { /* no such nick/channel */ user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str()); return CMD_FAILURE; } return CMD_SUCCESS; }
CmdResult Handle (const std::vector<std::string> ¶meters, User *user) { Channel* channel = ServerInstance->FindChan(parameters[0]); if (channel) { int cm = channel->GetStatus(user); if ((cm == STATUS_HOP) || (cm == STATUS_OP)) { if (!ServerInstance->IsValidMask(parameters[2])) { user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban mask"); return CMD_FAILURE; } for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++) { if (!strcasecmp(i->data.c_str(), parameters[2].c_str())) { user->WriteServ("NOTICE "+std::string(user->nick)+" :The ban "+parameters[2]+" is already on the banlist of "+parameters[0]); return CMD_FAILURE; } } TimedBan T; std::string channelname = parameters[0]; long duration = ServerInstance->Duration(parameters[1]); unsigned long expire = duration + ServerInstance->Time(); if (duration < 1) { user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban time"); return CMD_FAILURE; } std::string mask = parameters[2]; std::vector<std::string> setban; setban.push_back(parameters[0]); setban.push_back("+b"); setban.push_back(parameters[2]); // use CallCommandHandler to make it so that the user sets the mode // themselves ServerInstance->CallCommandHandler("MODE",setban,user); /* Check if the ban was actually added (e.g. banlist was NOT full) */ bool was_added = false; for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++) if (!strcasecmp(i->data.c_str(), mask.c_str())) was_added = true; if (was_added) { CUList tmp; T.channel = channelname; T.mask = mask; T.expire = expire; TimedBanList.push_back(T); channel->WriteAllExcept(user, true, '@', tmp, "NOTICE %s :%s added a timed ban on %s lasting for %ld seconds.", channel->name.c_str(), user->nick.c_str(), mask.c_str(), duration); ServerInstance->PI->SendChannelNotice(channel, '@', user->nick + " added a timed ban on " + mask + " lasting for " + ConvToStr(duration) + " seconds."); if (ServerInstance->Config->AllowHalfop) { channel->WriteAllExcept(user, true, '%', tmp, "NOTICE %s :%s added a timed ban on %s lasting for %ld seconds.", channel->name.c_str(), user->nick.c_str(), mask.c_str(), duration); ServerInstance->PI->SendChannelNotice(channel, '%', user->nick + " added a timed ban on " + mask + " lasting for " + ConvToStr(duration) + " seconds."); } return CMD_SUCCESS; } return CMD_FAILURE; } else user->WriteNumeric(482, "%s %s :You must be at least a%soperator to change modes on this channel",user->nick.c_str(), channel->name.c_str(), ServerInstance->Config->AllowHalfop ? " half-" : " channel "); return CMD_FAILURE; } user->WriteNumeric(401, "%s %s :No such channel",user->nick.c_str(), parameters[0].c_str()); return CMD_FAILURE; }
/** Handle nick changes from users. * NOTE: If you are used to ircds based on ircd2.8, and are looking * for the client introduction code in here, youre in the wrong place. * You need to look in the spanningtree module for this! */ CmdResult CommandNick::Handle (const std::vector<std::string>& parameters, User *user) { std::string oldnick; if (parameters[0].empty()) { /* We cant put blanks in the parameters, so for this (extremely rare) issue we just put '*' here. */ user->WriteNumeric(432, "%s * :Erroneous Nickname", user->nick.empty() ? user->nick.c_str() : "*"); return CMD_FAILURE; } if (((!ServerInstance->IsNick(parameters[0].c_str(), ServerInstance->Config->Limits.NickMax))) && (IS_LOCAL(user))) { if (!allowinvalid) { if (parameters[0] == "0") { // Special case, Fake a /nick UIDHERE. Useful for evading "ERR: NICK IN USE" on connect etc. std::vector<std::string> p2; std::deque<classbase*> dummy; p2.push_back(user->uuid); this->HandleInternal(1, dummy); this->Handle(p2, user); this->HandleInternal(0, dummy); return CMD_SUCCESS; } user->WriteNumeric(432, "%s %s :Erroneous Nickname", user->nick.c_str(),parameters[0].c_str()); return CMD_FAILURE; } } if (assign(user->nick) == parameters[0]) { /* If its exactly the same, even case, dont do anything. */ if (parameters[0] == user->nick) { return CMD_SUCCESS; } /* Its a change of case. People insisted that they should be * able to do silly things like this even though the RFC says * the nick AAA is the same as the nick aaa. */ oldnick.assign(user->nick, 0, IS_LOCAL(user) ? ServerInstance->Config->Limits.NickMax : MAXBUF); int MOD_RESULT = 0; FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user,parameters[0])); if (MOD_RESULT) return CMD_FAILURE; if (user->registered == REG_ALL) user->WriteCommon("NICK %s",parameters[0].c_str()); user->nick.assign(parameters[0], 0, IS_LOCAL(user) ? ServerInstance->Config->Limits.NickMax : MAXBUF); user->InvalidateCache(); FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(user,oldnick)); return CMD_SUCCESS; } else { /* * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some f*****g *moron* * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be. * Thanks Kein for finding this. -- w00t * * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves. * -- w00t */ if (!allowinvalid || !IS_LOCAL(user)) { XLine* mq = ServerInstance->XLines->MatchesLine("Q",parameters[0]); if (mq) { if (user->registered == REG_ALL) { ServerInstance->SNO->WriteToSnoMask('x', "Q-Lined nickname %s from %s!%s@%s: %s", parameters[0].c_str(), user->nick.c_str(), user->ident.c_str(), user->host.c_str(), mq->reason); } user->WriteNumeric(432, "%s %s :Invalid nickname: %s",user->nick.c_str(), parameters[0].c_str(), mq->reason); return CMD_FAILURE; } if (ServerInstance->Config->RestrictBannedUsers) { for (UCListIter i = user->chans.begin(); i != user->chans.end(); i++) { Channel *chan = i->first; if (chan->GetStatus(user) < STATUS_VOICE && chan->IsBanned(user)) { user->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", user->nick.c_str(), chan->name.c_str()); return CMD_FAILURE; } } } } /* * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) -- * then we have a potential collide. Check whether someone else is camping on the nick * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the * camper to their UID, and allow the incoming nick change. * * If the guy using the nick is already using it, tell the incoming nick change to gtfo, * because the nick is already (rightfully) in use. -- w00t */ User* InUse = ServerInstance->FindNickOnly(parameters[0]); if (InUse && (InUse != user)) { if (InUse->registered != REG_ALL) { /* force the camper to their UUID, and ask them to re-send a NICK. */ InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str()); InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str()); InUse->UpdateNickHash(InUse->uuid.c_str()); InUse->nick.assign(InUse->uuid, 0, IS_LOCAL(InUse) ? ServerInstance->Config->Limits.NickMax : MAXBUF); InUse->InvalidateCache(); InUse->registered &= ~REG_NICK; } else { /* No camping, tell the incoming user to stop trying to change nick ;p */ user->WriteNumeric(433, "%s %s :Nickname is already in use.", user->registered >= REG_NICK ? user->nick.c_str() : "*", parameters[0].c_str()); return CMD_FAILURE; } } } int MOD_RESULT = 0; FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user, parameters[0])); if (MOD_RESULT) // if a module returns true, the nick change is silently forbidden. return CMD_FAILURE; if (user->registered == REG_ALL) user->WriteCommon("NICK %s", parameters[0].c_str()); oldnick.assign(user->nick, 0, IS_LOCAL(user) ? ServerInstance->Config->Limits.NickMax : MAXBUF); /* change the nick of the user in the users_hash */ user = user->UpdateNickHash(parameters[0].c_str()); /* actually change the nick within the record */ if (!user) return CMD_FAILURE; user->nick.assign(parameters[0], 0, IS_LOCAL(user) ? ServerInstance->Config->Limits.NickMax : MAXBUF); user->InvalidateCache(); /* Update display nicks */ for (UCListIter v = user->chans.begin(); v != user->chans.end(); v++) { CUList* ulist = v->first->GetUsers(); CUList::iterator i = ulist->find(user); if (i != ulist->end()) i->second = user->nick; } if (user->registered < REG_NICKUSER) { user->registered = (user->registered | REG_NICK); if (user->registered == REG_NICKUSER) { /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */ MOD_RESULT = 0; FOREACH_RESULT(I_OnUserRegister,OnUserRegister(user)); if (MOD_RESULT > 0) return CMD_FAILURE; // return early to not penalize new users return CMD_SUCCESS; } } if (user->registered == REG_ALL) { user->IncreasePenalty(10); FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(user, oldnick)); } return CMD_SUCCESS; }