CmdResult Handle (const std::vector<std::string> ¶meters, User *user)
{
Channel* channel = ServerInstance->FindChan(parameters[0]);
std::string reason = ConvToStr("Cycling");
if (parameters.size() > 1)
{
/* reason provided, use it */
reason = reason + ": " + parameters[1];
}
if (!channel)
{
user->WriteNumeric(403, "%s %s :No such channel", user->nick.c_str(), parameters[0].c_str());
return CMD_FAILURE;
}
if (channel->HasUser(user))
{
/*
* technically, this is only ever sent locally, but pays to be safe ;p
*/
if (IS_LOCAL(user))
{
if (channel->GetPrefixValue(user) < VOICE_VALUE && channel->IsBanned(user))
{
/* banned, boned. drop the message. */
user->WriteServ("NOTICE "+user->nick+" :*** You may not cycle, as you are banned on channel " + channel->name);
return CMD_FAILURE;
}
channel->PartUser(user, reason);
Channel::JoinUser(user, parameters[0], true, "", false, ServerInstance->Time());
}
return CMD_SUCCESS;
}
else
{
user->WriteNumeric(442, "%s %s :You're not on that channel", user->nick.c_str(), channel->name.c_str());
}
return CMD_FAILURE;
}
CmdResult CommandPrivmsg::Handle (const std::vector<std::string>& parameters, User *user)
{
User *dest;
Channel *chan;
CUList except_list;
LocalUser* localuser = IS_LOCAL(user);
if (localuser)
localuser->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;
ModResult MOD_RESULT;
std::string temp = parameters[1];
FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, (void*)parameters[0].c_str(), TYPE_SERVER, temp, 0, except_list, MSG_PRIVMSG));
if (MOD_RESULT == MOD_RES_DENY)
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, except_list));
if (InspIRCd::Match(ServerInstance->Config->ServerName, servermask, NULL))
{
user->SendAll("PRIVMSG", "%s", text);
}
FOREACH_MOD(I_OnUserMessage,OnUserMessage(user, (void*)parameters[0].c_str(), TYPE_SERVER, text, 0, except_list, MSG_PRIVMSG));
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);
except_list.insert(user);
if (chan)
{
if (localuser && chan->GetPrefixValue(user) < VOICE_VALUE)
{
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'))
{
user->WriteNumeric(404, "%s %s :Cannot send to channel (+m)", user->nick.c_str(), chan->name.c_str());
return CMD_FAILURE;
}
if (ServerInstance->Config->RestrictBannedUsers)
{
if (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;
}
}
}
ModResult MOD_RESULT;
std::string temp = parameters[1];
FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, chan, TYPE_CHANNEL, temp, status, except_list, MSG_PRIVMSG));
if (MOD_RESULT == MOD_RES_DENY)
return CMD_FAILURE;
const char* text = temp.c_str();
/* Check again, a module may have zapped the input string */
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,except_list));
if (status)
{
if (ServerInstance->Config->UndernetMsgPrefix)
{
chan->WriteAllExcept(user, false, status, except_list, "PRIVMSG %c%s :%c %s", status, chan->name.c_str(), status, text);
}
else
{
chan->WriteAllExcept(user, false, status, except_list, "PRIVMSG %c%s :%s", status, chan->name.c_str(), text);
}
}
else
{
chan->WriteAllExcept(user, false, status, except_list, "PRIVMSG %s :%s", chan->name.c_str(), text);
}
FOREACH_MOD(I_OnUserMessage, OnUserMessage(user,chan, TYPE_CHANNEL, text, status, except_list, MSG_PRIVMSG));
}
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 (localuser)
{
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.c_str(), 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) && (dest->registered == REG_ALL))
{
if (parameters[1].empty())
{
user->WriteNumeric(412, "%s :No text to send", user->nick.c_str());
return CMD_FAILURE;
}
if (dest->IsAway())
{
/* auto respond with aweh msg */
user->WriteNumeric(301, "%s %s :%s", user->nick.c_str(), dest->nick.c_str(), dest->awaymsg.c_str());
}
ModResult MOD_RESULT;
std::string temp = parameters[1];
FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, dest, TYPE_USER, temp, 0, except_list, MSG_PRIVMSG));
if (MOD_RESULT == MOD_RES_DENY)
return CMD_FAILURE;
const char* text = temp.c_str();
FOREACH_MOD(I_OnText,OnText(user, dest, TYPE_USER, text, 0, except_list));
if (IS_LOCAL(dest))
{
// direct write, same server
user->WriteTo(dest, "PRIVMSG %s :%s", dest->nick.c_str(), text);
}
FOREACH_MOD(I_OnUserMessage,OnUserMessage(user, dest, TYPE_USER, text, 0, except_list, MSG_PRIVMSG));
}
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;
}
bool User::ChangeNick(const std::string& newnick, bool force, time_t newts)
{
if (quitting)
{
ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Attempted to change nick of a quitting user: "******"%s :Cannot send to channel (you're banned)", chan->name.c_str());
return false;
}
}
}
}
if (assign(newnick) == assign(nick))
{
// case change, don't need to check campers
// and, if it's identical including case, we can leave right now
// We also don't update the nick TS if it's a case change, either
if (newnick == nick)
return true;
}
else
{
/*
* 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(newnick);
if (InUse && (InUse != this))
{
if (InUse->registered != REG_ALL)
{
/* force the camper to their UUID, and ask them to re-send a NICK. */
InUse->WriteFrom(InUse, "NICK %s", InUse->uuid.c_str());
InUse->WriteNumeric(ERR_NICKNAMEINUSE, "%s :Nickname overruled.", InUse->nick.c_str());
ServerInstance->Users->clientlist.erase(InUse->nick);
ServerInstance->Users->clientlist[InUse->uuid] = InUse;
InUse->nick = InUse->uuid;
InUse->InvalidateCache();
InUse->registered &= ~REG_NICK;
}
else
{
/* No camping, tell the incoming user to stop trying to change nick ;p */
this->WriteNumeric(ERR_NICKNAMEINUSE, "%s :Nickname is already in use.", newnick.c_str());
return false;
}
}
age = newts ? newts : ServerInstance->Time();
}
if (this->registered == REG_ALL)
this->WriteCommon("NICK %s",newnick.c_str());
std::string oldnick = nick;
nick = newnick;
InvalidateCache();
ServerInstance->Users->clientlist.erase(oldnick);
ServerInstance->Users->clientlist[newnick] = this;
if (registered == REG_ALL)
FOREACH_MOD(OnUserPostNick, (this,oldnick));
return true;
}
bool User::ChangeNick(const std::string& newnick, bool force)
{
ModResult MOD_RESULT;
if (force)
ServerInstance->NICKForced.set(this, 1);
FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
ServerInstance->NICKForced.set(this, 0);
if (MOD_RESULT == MOD_RES_DENY)
{
ServerInstance->stats->statsCollisions++;
return false;
}
if (assign(newnick) == assign(nick))
{
// case change, don't need to check Q:lines and such
// and, if it's identical including case, we can leave right now
if (newnick == nick)
return true;
}
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 (IS_LOCAL(this) && !force)
{
XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
if (mq)
{
if (this->registered == REG_ALL)
{
ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s: %s",
newnick.c_str(), GetFullRealHost().c_str(), mq->reason.c_str());
}
this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
return false;
}
if (ServerInstance->Config->RestrictBannedUsers)
{
for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
{
Channel *chan = *i;
if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
{
this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
return false;
}
}
}
}
/*
* 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(newnick);
if (InUse && (InUse != this))
{
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());
ServerInstance->Users->clientlist->erase(InUse->nick);
(*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
InUse->nick = InUse->uuid;
InUse->InvalidateCache();
InUse->registered &= ~REG_NICK;
}
else
{
/* No camping, tell the incoming user to stop trying to change nick ;p */
this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
return false;
}
}
}
if (this->registered == REG_ALL)
this->WriteCommon("NICK %s",newnick.c_str());
std::string oldnick = nick;
nick = newnick;
InvalidateCache();
ServerInstance->Users->clientlist->erase(oldnick);
(*(ServerInstance->Users->clientlist))[newnick] = this;
if (registered == REG_ALL)
FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
return true;
}
CmdResult HandleChannelTarget(User* source, const Params& parameters, const char* target, PrefixMode* pm)
{
Channel* chan = ServerInstance->FindChan(target);
if (!chan)
{
// The target channel does not exist.
source->WriteNumeric(Numerics::NoSuchChannel(parameters[0]));
return CMD_FAILURE;
}
if (IS_LOCAL(source))
{
if (chan->IsModeSet(noextmsgmode) && !chan->HasUser(source))
{
// The noextmsg mode is set and the source is not in the channel.
source->WriteNumeric(ERR_CANNOTSENDTOCHAN, chan->name, "Cannot send to channel (no external messages)");
return CMD_FAILURE;
}
bool no_chan_priv = chan->GetPrefixValue(source) < VOICE_VALUE;
if (no_chan_priv && chan->IsModeSet(moderatedmode))
{
// The moderated mode is set and the source has no status rank.
source->WriteNumeric(ERR_CANNOTSENDTOCHAN, chan->name, "Cannot send to channel (+m)");
return CMD_FAILURE;
}
if (no_chan_priv && ServerInstance->Config->RestrictBannedUsers != ServerConfig::BUT_NORMAL && chan->IsBanned(source))
{
// The source is banned in the channel and restrictbannedusers is enabled.
if (ServerInstance->Config->RestrictBannedUsers == ServerConfig::BUT_RESTRICT_NOTIFY)
source->WriteNumeric(ERR_CANNOTSENDTOCHAN, chan->name, "Cannot send to channel (you're banned)");
return CMD_FAILURE;
}
}
// Fire the pre-message events.
MessageTarget msgtarget(chan, pm ? pm->GetPrefix() : 0);
CTCTags::TagMessageDetails msgdetails(parameters.GetTags());
if (!FirePreEvents(source, msgtarget, msgdetails))
return CMD_FAILURE;
unsigned int minrank = pm ? pm->GetPrefixRank() : 0;
CTCTags::TagMessage message(source, chan, parameters.GetTags());
const Channel::MemberMap& userlist = chan->GetUsers();
for (Channel::MemberMap::const_iterator iter = userlist.begin(); iter != userlist.end(); ++iter)
{
LocalUser* luser = IS_LOCAL(iter->first);
// Don't send to remote users or the user who is the source.
if (!luser || luser == source)
continue;
// Don't send to unprivileged or exempt users.
if (iter->second->getRank() < minrank || msgdetails.exemptions.count(luser))
continue;
// Send to users if they have the capability.
if (cap.get(luser))
luser->Send(msgevprov, message);
}
return FirePostEvent(source, msgtarget, msgdetails);
}
/** 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;
}
