X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fcommands%2Fcmd_nick.cpp;h=a079e59d057880fcfd8e94d33d53a506e508ad47;hb=571714e28b26cc59cbc8d27098a5ba981240ee2d;hp=eac29dd24fb65b77012ea9051b0f2a1b83709cc7;hpb=ffbd1eebf0b82bf40482879f410f58874030a695;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/commands/cmd_nick.cpp b/src/commands/cmd_nick.cpp index eac29dd24..a079e59d0 100644 --- a/src/commands/cmd_nick.cpp +++ b/src/commands/cmd_nick.cpp @@ -1,24 +1,46 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2008 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2008 Craig Edwards + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2007-2008 Robin Burchell * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ + #include "inspircd.h" -#include "xline.h" -#include "commands/cmd_nick.h" -extern "C" DllExport Command* init_command(InspIRCd* Instance) +/** Handle /NICK. These command handlers can be reloaded by the core, + * and handle basic RFC1459 commands. Commands within modules work + * the same way, however, they can be fully unloaded, where these + * may not. + */ +class CommandNick : public Command { - return new CommandNick(Instance); -} + public: + /** Constructor for nick. + */ + CommandNick ( Module* parent) : Command(parent,"NICK", 1, 1) { works_before_reg = true; syntax = ""; Penalty = 0; } + /** Handle command. + * @param parameters The parameters to the comamnd + * @param pcnt The number of parameters passed to teh command + * @param user The user issuing the command + * @return A value from CmdResult to indicate command success or failure. + */ + CmdResult Handle(const std::vector& parameters, User *user); +}; /** Handle nick changes from users. * NOTE: If you are used to ircds based on ircd2.8, and are looking @@ -27,155 +49,50 @@ extern "C" DllExport Command* init_command(InspIRCd* Instance) */ CmdResult CommandNick::Handle (const std::vector& parameters, User *user) { - char oldnick[NICKMAX]; + std::string oldnick = user->nick; + std::string newnick = parameters[0]; + + // anything except the initial NICK gets a flood penalty + if (user->registered == REG_ALL && IS_LOCAL(user)) + IS_LOCAL(user)->CommandFloodPenalty += 4000; - if (parameters[0].empty()) + if (newnick.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 ? user->nick : "*"); + user->WriteNumeric(432, "%s * :Erroneous Nickname", oldnick.c_str()); return CMD_FAILURE; } - if (irc::string(user->nick) == assign(parameters[0])) + if (newnick == "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. - */ - strlcpy(oldnick, user->nick, NICKMAX - 1); - int MOD_RESULT = 0; - FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user,parameters[0].c_str())); - if (MOD_RESULT) - return CMD_FAILURE; - if (user->registered == REG_ALL) - user->WriteCommon("NICK %s",parameters[0].c_str()); - strlcpy(user->nick, parameters[0].c_str(), NICKMAX - 1); - 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 fucking *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) - { - ServerInstance->SNO->WriteToSnoMask('x', "Q-Lined nickname %s from %s!%s@%s: %s", parameters[0].c_str(), user->nick, user->ident, user->host, mq->reason); - user->WriteNumeric(432, "%s %s :Invalid nickname: %s",user->nick, parameters[0].c_str(), mq->reason); - 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) && ((ServerInstance->IsNick(parameters[0].c_str()) || allowinvalid))) - { - 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); - InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick, InUse->nick); - InUse->UpdateNickHash(InUse->uuid); - strlcpy(InUse->nick, InUse->uuid, NICKMAX - 1); - 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 : "*", parameters[0].c_str()); - return CMD_FAILURE; - } - } + newnick = user->uuid; } - if (((!ServerInstance->IsNick(parameters[0].c_str()))) && (IS_LOCAL(user))) + else if (!ServerInstance->IsNick(newnick.c_str(), ServerInstance->Config->Limits.NickMax)) { - if (!allowinvalid) - { - user->WriteNumeric(432, "%s %s :Erroneous Nickname", user->nick,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. + user->WriteNumeric(432, "%s %s :Erroneous Nickname", user->nick.c_str(),newnick.c_str()); return CMD_FAILURE; + } - if (user->registered == REG_ALL) - user->WriteCommon("NICK %s", parameters[0].c_str()); - - strlcpy(oldnick, user->nick, NICKMAX - 1); - - /* 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; - if (!*user->nick) + if (!user->ChangeNick(newnick, false)) return CMD_FAILURE; - strlcpy(user->nick, parameters[0].c_str(), NICKMAX - 1); - - 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; - } - if (user->registered == REG_ALL) - { - user->IncreasePenalty(10); - FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(user,oldnick)); + if (user->registered == REG_NICKUSER) + { + /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */ + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnUserRegister, MOD_RESULT, (IS_LOCAL(user))); + if (MOD_RESULT == MOD_RES_DENY) + return CMD_FAILURE; + + // return early to not penalize new users + return CMD_SUCCESS; + } } return CMD_SUCCESS; - } -CmdResult CommandNick::HandleInternal(const unsigned int id, const std::deque&) -{ - allowinvalid = (id != 0); - return CMD_SUCCESS; -} +COMMAND_INIT(CommandNick)