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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2012 Attila Molnar <attilamolnar@hush.com>
*
* 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/account.h"
#include "modules/cap.h"
class WriteNeighborsWithCap : public User::ForEachNeighborHandler
{
const Cap::Capability& cap;
const std::string& msg;
void Execute(LocalUser* user) CXX11_OVERRIDE
{
if (cap.get(user))
user->Write(msg);
}
public:
WriteNeighborsWithCap(User* user, const std::string& message, const Cap::Capability& capability)
: cap(capability)
, msg(message)
{
user->ForEachNeighbor(*this, false);
}
};
class ModuleIRCv3 : public Module, public AccountEventListener
{
Cap::Capability cap_accountnotify;
Cap::Capability cap_awaynotify;
Cap::Capability cap_extendedjoin;
CUList last_excepts;
public:
ModuleIRCv3()
: AccountEventListener(this)
, cap_accountnotify(this, "account-notify"),
cap_awaynotify(this, "away-notify"),
cap_extendedjoin(this, "extended-join")
{
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
ConfigTag* conf = ServerInstance->Config->ConfValue("ircv3");
cap_accountnotify.SetActive(conf->getBool("accountnotify", true));
cap_awaynotify.SetActive(conf->getBool("awaynotify", true));
cap_extendedjoin.SetActive(conf->getBool("extendedjoin", true));
}
void OnAccountChange(User* user, const std::string& newaccount) CXX11_OVERRIDE
{
// :nick!user@host ACCOUNT account
// or
// :nick!user@host ACCOUNT *
std::string line = ":" + user->GetFullHost() + " ACCOUNT ";
if (newaccount.empty())
line += "*";
else
line += newaccount;
WriteNeighborsWithCap(user, line, cap_accountnotify);
}
void OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts) CXX11_OVERRIDE
{
// Remember who is not going to see the JOIN because of other modules
if ((cap_awaynotify.IsActive()) && (memb->user->IsAway()))
last_excepts = excepts;
if (!cap_extendedjoin.IsActive())
return;
/*
* Send extended joins to clients who have the extended-join capability.
* An extended join looks like this:
*
* :nick!user@host JOIN #chan account :realname
*
* account is the joining user's account if he's logged in, otherwise it's an asterisk (*).
*/
std::string line;
std::string mode;
const Channel::MemberMap& userlist = memb->chan->GetUsers();
for (Channel::MemberMap::const_iterator it = userlist.begin(); it != userlist.end(); ++it)
{
// Send the extended join line if the current member is local, has the extended-join cap and isn't excepted
User* member = IS_LOCAL(it->first);
if ((member) && (cap_extendedjoin.get(member)) && (excepts.find(member) == excepts.end()))
{
// Construct the lines we're going to send if we haven't constructed them already
if (line.empty())
{
bool has_account = false;
line = ":" + memb->user->GetFullHost() + " JOIN " + memb->chan->name + " ";
const AccountExtItem* accountext = GetAccountExtItem();
if (accountext)
{
std::string* accountname;
accountname = accountext->get(memb->user);
if (accountname)
{
line += *accountname;
has_account = true;
}
}
if (!has_account)
line += "*";
line += " :" + memb->user->fullname;
// If the joining user received privileges from another module then we must send them as well,
// since silencing the normal join means the MODE will be silenced as well
if (!memb->modes.empty())
{
const std::string& modefrom = ServerInstance->Config->CycleHostsFromUser ? memb->user->GetFullHost() : ServerInstance->Config->ServerName;
mode = ":" + modefrom + " MODE " + memb->chan->name + " +" + memb->modes;
for (unsigned int i = 0; i < memb->modes.length(); i++)
mode += " " + memb->user->nick;
}
}
// Write the JOIN and the MODE, if any
member->Write(line);
if ((!mode.empty()) && (member != memb->user))
member->Write(mode);
// Prevent the core from sending the JOIN and MODE to this user
excepts.insert(it->first);
}
}
}
ModResult OnSetAway(User* user, const std::string &awaymsg) CXX11_OVERRIDE
{
if (cap_awaynotify.IsActive())
{
// Going away: n!u@h AWAY :reason
// Back from away: n!u@h AWAY
std::string line = ":" + user->GetFullHost() + " AWAY";
if (!awaymsg.empty())
line += " :" + awaymsg;
WriteNeighborsWithCap(user, line, cap_awaynotify);
}
return MOD_RES_PASSTHRU;
}
void OnPostJoin(Membership *memb) CXX11_OVERRIDE
{
if ((!cap_awaynotify.IsActive()) || (!memb->user->IsAway()))
return;
std::string line = ":" + memb->user->GetFullHost() + " AWAY :" + memb->user->awaymsg;
const Channel::MemberMap& userlist = memb->chan->GetUsers();
for (Channel::MemberMap::const_iterator it = userlist.begin(); it != userlist.end(); ++it)
{
// Send the away notify line if the current member is local, has the away-notify cap and isn't excepted
User* member = IS_LOCAL(it->first);
if ((member) && (cap_awaynotify.get(member)) && (last_excepts.find(member) == last_excepts.end()))
{
member->Write(line);
}
}
last_excepts.clear();
}
void Prioritize()
{
ServerInstance->Modules->SetPriority(this, I_OnUserJoin, PRIORITY_LAST);
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support for extended-join, away-notify and account-notify CAP capabilities", VF_VENDOR);
}
};
MODULE_INIT(ModuleIRCv3)
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