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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
#include "modules/cap.h"
class ModuleHostCycle : public Module
{
Cap::Reference chghostcap;
/** Send fake quit/join/mode messages for host or ident cycle.
*/
void DoHostCycle(User* user, const std::string& newident, const std::string& newhost, const char* quitmsg)
{
// GetFullHost() returns the original data at the time this function is called
const std::string quitline = ":" + user->GetFullHost() + " QUIT :" + quitmsg;
already_sent_t silent_id = ServerInstance->Users.NextAlreadySentId();
already_sent_t seen_id = ServerInstance->Users.NextAlreadySentId();
IncludeChanList include_chans(user->chans.begin(), user->chans.end());
std::map<User*,bool> exceptions;
FOREACH_MOD(OnBuildNeighborList, (user, include_chans, exceptions));
// Users shouldn't see themselves quitting when host cycling
exceptions.erase(user);
for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
{
LocalUser* u = IS_LOCAL(i->first);
if ((u) && (!u->quitting) && (!chghostcap.get(u)))
{
if (i->second)
{
u->already_sent = seen_id;
u->Write(quitline);
}
else
{
u->already_sent = silent_id;
}
}
}
std::string newfullhost = user->nick + "!" + newident + "@" + newhost;
for (IncludeChanList::const_iterator i = include_chans.begin(); i != include_chans.end(); ++i)
{
Membership* memb = *i;
Channel* c = memb->chan;
const std::string joinline = ":" + newfullhost + " JOIN " + c->name;
std::string modeline;
if (!memb->modes.empty())
{
modeline = ":" + (ServerInstance->Config->CycleHostsFromUser ? newfullhost : ServerInstance->Config->ServerName)
+ " MODE " + c->name + " +" + memb->modes;
for (size_t j = 0; j < memb->modes.length(); j++)
modeline.append(" ").append(user->nick);
}
const Channel::MemberMap& ulist = c->GetUsers();
for (Channel::MemberMap::const_iterator j = ulist.begin(); j != ulist.end(); ++j)
{
LocalUser* u = IS_LOCAL(j->first);
if (u == NULL || u == user)
continue;
if (u->already_sent == silent_id)
continue;
if (chghostcap.get(u))
continue;
if (u->already_sent != seen_id)
{
u->Write(quitline);
u->already_sent = seen_id;
}
u->Write(joinline);
if (!memb->modes.empty())
u->Write(modeline);
}
}
}
public:
ModuleHostCycle()
: chghostcap(this, "chghost")
{
}
void OnChangeIdent(User* user, const std::string& newident) CXX11_OVERRIDE
{
DoHostCycle(user, newident, user->GetDisplayedHost(), "Changing ident");
}
void OnChangeHost(User* user, const std::string& newhost) CXX11_OVERRIDE
{
DoHostCycle(user, user->ident, newhost, "Changing host");
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Cycles users in all their channels when their host or ident changes", VF_VENDOR);
}
};
MODULE_INIT(ModuleHostCycle)
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