/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2012 Shawn Smith <shawn@inspircd.org>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
* Copyright (C) 2006, 2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2007 Dennis Friis <peavey@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/account.h"
#include "modules/exemption.h"
enum
{
// From UnrealIRCd.
RPL_WHOISREGNICK = 307,
// From ircu.
RPL_WHOISACCOUNT = 330,
// From ircd-hybrid?
ERR_NEEDREGGEDNICK = 477,
// From IRCv3 sasl-3.1.
RPL_LOGGEDIN = 900,
RPL_LOGGEDOUT = 901
};
/** Channel mode +r - mark a channel as identified
*/
class Channel_r : public ModeHandler
{
public:
Channel_r(Module* Creator) : ModeHandler(Creator, "c_registered", 'r', PARAM_NONE, MODETYPE_CHANNEL) { }
ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
{
// only a u-lined server may add or remove the +r mode.
if (!IS_LOCAL(source))
{
// Only change the mode if it's not redundant
if ((adding != channel->IsModeSet(this)))
{
channel->SetMode(this, adding);
return MODEACTION_ALLOW;
}
}
else
{
source->WriteNumeric(500, "Only a server may modify the +r channel mode");
}
return MODEACTION_DENY;
}
};
/** User mode +r - mark a user as identified
*/
class User_r : public ModeHandler
{
public:
User_r(Module* Creator) : ModeHandler(Creator, "u_registered", 'r', PARAM_NONE, MODETYPE_USER) { }
ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
{
if (!IS_LOCAL(source))
{
if ((adding != dest->IsModeSet(this)))
{
dest->SetMode(this, adding);
return MODEACTION_ALLOW;
}
}
else
{
source->WriteNumeric(500, "Only a server may modify the +r user mode");
}
return MODEACTION_DENY;
}
};
class AccountExtItemImpl : public AccountExtItem
{
Events::ModuleEventProvider eventprov;
public:
AccountExtItemImpl(Module* mod)
: AccountExtItem("accountname", ExtensionItem::EXT_USER, mod)
, eventprov(mod, "event/account")
{
}
void unserialize(SerializeFormat format, Extensible* container, const std::string& value) CXX11_OVERRIDE
{
User* user = static_cast<User*>(container);
StringExtItem::unserialize(format, container, value);
// If we are being reloaded then don't send the numeric or run the event
if (format == FORMAT_INTERNAL)
return;
if (IS_LOCAL(user))
{
if (value.empty())
{
// Logged out.
user->WriteNumeric(RPL_LOGGEDOUT, user->GetFullHost(), "You are now logged out");
}
else
{
// Logged in.
user->WriteNumeric(RPL_LOGGEDIN, user->GetFullHost(), value, InspIRCd::Format("You are now logged in as %s", value.c_str()));
}
}
FOREACH_MOD_CUSTOM(eventprov, AccountEventListener, OnAccountChange, (user, value));
}
};
class ModuleServicesAccount : public Module, public Whois::EventListener
{
CheckExemption::EventProvider exemptionprov;
SimpleChannelModeHandler m1;
SimpleChannelModeHandler m2;
SimpleUserModeHandler m3;
Channel_r m4;
User_r m5;
AccountExtItemImpl accountname;
bool checking_ban;
public:
ModuleServicesAccount()
: Whois::EventListener(this)
, exemptionprov(this)
, m1(this, "reginvite", 'R')
, m2(this, "regmoderated", 'M')
, m3(this, "regdeaf", 'R')
, m4(this)
, m5(this)
, accountname(this)
, checking_ban(false)
{
}
void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
{
tokens["EXTBAN"].push_back('R');
tokens["EXTBAN"].push_back('U');
}
/* <- :twisted.oscnet.org 330 w00t2 w00t2 w00t :is logged in as */
void OnWhois(Whois::Context& whois) CXX11_OVERRIDE
{
std::string* account = accountname.get(whois.GetTarget());
if (account)
{
whois.SendLine(RPL_WHOISACCOUNT, *account, "is logged in as");
}
if (whois.GetTarget()->IsModeSet(m5))
{
/* user is registered */
whois.SendLine(RPL_WHOISREGNICK, "is a registered nick");
}
}
void OnUserPostNick(User* user, const std::string &oldnick) CXX11_OVERRIDE
{
/* On nickchange, if they have +r, remove it */
if ((user->IsModeSet(m5)) && (ServerInstance->FindNickOnly(oldnick) != user))
m5.RemoveMode(user);
}
ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
{
if (!IS_LOCAL(user))
return MOD_RES_PASSTHRU;
std::string *account = accountname.get(user);
bool is_registered = account && !account->empty();
if (target.type == MessageTarget::TYPE_CHANNEL)
{
Channel* c = target.Get<Channel>();
ModResult res = CheckExemption::Call(exemptionprov, user, c, "regmoderated");
if (c->IsModeSet(m2) && !is_registered && res != MOD_RES_ALLOW)
{
// user messaging a +M channel and is not registered
user->WriteNumeric(ERR_NEEDREGGEDNICK, c->name, "You need to be identified to a registered account to message this channel");
return MOD_RES_DENY;
}
}
else if (target.type == MessageTarget::TYPE_USER)
{
User* u = target.Get<User>();
if (u->IsModeSet(m3) && !is_registered)
{
// user messaging a +R user and is not registered
user->WriteNumeric(ERR_NEEDREGGEDNICK, u->nick, "You need to be identified to a registered account to message this user");
return MOD_RES_DENY;
}
}
return MOD_RES_PASSTHRU;
}
ModResult OnCheckBan(User* user, Channel* chan, const std::string& mask) CXX11_OVERRIDE
{
if (checking_ban)
return MOD_RES_PASSTHRU;
if ((mask.length() > 2) && (mask[1] == ':'))
{
if (mask[0] == 'R')
{
std::string *account = accountname.get(user);
if (account && InspIRCd::Match(*account, mask.substr(2)))
return MOD_RES_DENY;
}
else if (mask[0] == 'U')
{
std::string *account = accountname.get(user);
/* If the user is registered we don't care. */
if (account)
return MOD_RES_PASSTHRU;
/* If we made it this far we know the user isn't registered
so just deny if it matches */
checking_ban = true;
bool result = chan->CheckBan(user, mask.substr(2));
checking_ban = false;
if (result)
return MOD_RES_DENY;
}
}
/* If we made it this far then the ban wasn't an ExtBan
or the user we were checking for didn't match either ExtBan */
return MOD_RES_PASSTHRU;
}
ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
{
std::string *account = accountname.get(user);
bool is_registered = account && !account->empty();
if (chan)
{
if (chan->IsModeSet(m1))
{
if (!is_registered)
{
// joining a +R channel and not identified
user->WriteNumeric(ERR_NEEDREGGEDNICK, chan->name, "You need to be identified to a registered account to join this channel");
return MOD_RES_DENY;
}
}
}
return MOD_RES_PASSTHRU;
}
ModResult OnSetConnectClass(LocalUser* user, ConnectClass* myclass) CXX11_OVERRIDE
{
if (myclass->config->getBool("requireaccount") && !accountname.get(user))
return MOD_RES_DENY;
return MOD_RES_PASSTHRU;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support for ircu-style services accounts, including chmode +R, etc.",VF_OPTCOMMON|VF_VENDOR);
}
};
MODULE_INIT(ModuleServicesAccount)
