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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
*
* 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"
/* $ModDesc: Allows for auditorium channels (+u) where nobody can see others joining and parting or the nick list */
class AuditoriumMode : public ModeHandler
{
public:
AuditoriumMode(Module* Creator) : ModeHandler(Creator, "auditorium", 'u', PARAM_NONE, MODETYPE_CHANNEL)
{
levelrequired = OP_VALUE;
}
ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
{
if (channel->IsModeSet(this) == adding)
return MODEACTION_DENY;
channel->SetMode(this, adding);
return MODEACTION_ALLOW;
}
};
class ModuleAuditorium : public Module
{
AuditoriumMode aum;
bool OpsVisible;
bool OpsCanSee;
bool OperCanSee;
public:
ModuleAuditorium() : aum(this)
{
}
void init()
{
ServerInstance->Modules->AddService(aum);
OnRehash(NULL);
Implementation eventlist[] = {
I_OnUserJoin, I_OnUserPart, I_OnUserKick,
I_OnBuildNeighborList, I_OnNamesListItem, I_OnSendWhoLine,
I_OnRehash };
ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
}
void OnRehash(User* user)
{
ConfigTag* tag = ServerInstance->Config->ConfValue("auditorium");
OpsVisible = tag->getBool("opvisible");
OpsCanSee = tag->getBool("opcansee");
OperCanSee = tag->getBool("opercansee", true);
}
Version GetVersion()
{
return Version("Allows for auditorium channels (+u) where nobody can see others joining and parting or the nick list", VF_VENDOR);
}
/* Can they be seen by everyone? */
bool IsVisible(Membership* memb)
{
if (!memb->chan->IsModeSet(&aum))
return true;
ModResult res = ServerInstance->OnCheckExemption(memb->user, memb->chan, "auditorium-vis");
return res.check(OpsVisible && memb->getRank() >= OP_VALUE);
}
/* Can they see this specific membership? */
bool CanSee(User* issuer, Membership* memb)
{
// If user is oper and operoverride is on, don't touch the list
if (OperCanSee && issuer->HasPrivPermission("channels/auspex"))
return true;
// You can always see yourself
if (issuer == memb->user)
return true;
// Can you see the list by permission?
ModResult res = ServerInstance->OnCheckExemption(issuer,memb->chan,"auditorium-see");
if (res.check(OpsCanSee && memb->chan->GetPrefixValue(issuer) >= OP_VALUE))
return true;
return false;
}
void OnNamesListItem(User* issuer, Membership* memb, std::string &prefixes, std::string &nick)
{
// Some module already hid this from being displayed, don't bother
if (nick.empty())
return;
if (IsVisible(memb))
return;
if (CanSee(issuer, memb))
return;
nick.clear();
}
/** Build CUList for showing this join/part/kick */
void BuildExcept(Membership* memb, CUList& excepts)
{
if (IsVisible(memb))
return;
const UserMembList* users = memb->chan->GetUsers();
for(UserMembCIter i = users->begin(); i != users->end(); i++)
{
if (IS_LOCAL(i->first) && !CanSee(i->first, memb))
excepts.insert(i->first);
}
}
void OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
{
BuildExcept(memb, excepts);
}
void OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
{
BuildExcept(memb, excepts);
}
void OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
{
BuildExcept(memb, excepts);
}
void OnBuildNeighborList(User* source, UserChanList &include, std::map<User*,bool> &exception)
{
UCListIter i = include.begin();
while (i != include.end())
{
Channel* c = *i++;
Membership* memb = c->GetUser(source);
if (!memb || IsVisible(memb))
continue;
// this channel should not be considered when listing my neighbors
include.erase(c);
// however, that might hide me from ops that can see me...
const UserMembList* users = c->GetUsers();
for(UserMembCIter j = users->begin(); j != users->end(); j++)
{
if (IS_LOCAL(j->first) && CanSee(j->first, memb))
exception[j->first] = true;
}
}
}
void OnSendWhoLine(User* source, const std::vector<std::string>& params, User* user, std::string& line)
{
Channel* channel = ServerInstance->FindChan(params[0]);
if (!channel)
return;
Membership* memb = channel->GetUser(user);
if (IsVisible(memb))
return;
if (CanSee(source, memb))
return;
line.clear();
}
};
MODULE_INIT(ModuleAuditorium)
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