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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Thomas Stagner <aquanight@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"
class WhoisContextImpl : public Whois::Context
{
Events::ModuleEventProvider& lineevprov;
public:
WhoisContextImpl(LocalUser* src, User* targ, Events::ModuleEventProvider& evprov)
: Whois::Context(src, targ)
, lineevprov(evprov)
{
}
using Whois::Context::SendLine;
void SendLine(Numeric::Numeric& numeric) CXX11_OVERRIDE;
};
void WhoisContextImpl::SendLine(Numeric::Numeric& numeric)
{
ModResult MOD_RESULT;
FIRST_MOD_RESULT_CUSTOM(lineevprov, Whois::LineEventListener, OnWhoisLine, MOD_RESULT, (*this, numeric));
if (MOD_RESULT != MOD_RES_DENY)
source->WriteNumeric(numeric);
}
/** Handle /WHOIS.
*/
class CommandWhois : public SplitCommand
{
ChanModeReference secretmode;
ChanModeReference privatemode;
UserModeReference snomaskmode;
Events::ModuleEventProvider evprov;
Events::ModuleEventProvider lineevprov;
void DoWhois(LocalUser* user, User* dest, unsigned long signon, unsigned long idle);
void SendChanList(WhoisContextImpl& whois);
public:
/** Constructor for whois.
*/
CommandWhois(Module* parent)
: SplitCommand(parent, "WHOIS", 1)
, secretmode(parent, "secret")
, privatemode(parent, "private")
, snomaskmode(parent, "snomask")
, evprov(parent, "event/whois")
, lineevprov(parent, "event/whoisline")
{
Penalty = 2;
syntax = "<nick>{,<nick>}";
}
/** Handle command.
* @param parameters The parameters to the command
* @param user The user issuing the command
* @return A value from CmdResult to indicate command success or failure.
*/
CmdResult HandleLocal(const std::vector<std::string>& parameters, LocalUser* user);
CmdResult HandleRemote(const std::vector<std::string>& parameters, RemoteUser* target);
};
class WhoisNumericSink
{
WhoisContextImpl& whois;
public:
WhoisNumericSink(WhoisContextImpl& whoisref)
: whois(whoisref)
{
}
void operator()(Numeric::Numeric& numeric) const
{
whois.SendLine(numeric);
}
};
class WhoisChanListNumericBuilder : public Numeric::GenericBuilder<' ', false, WhoisNumericSink>
{
public:
WhoisChanListNumericBuilder(WhoisContextImpl& whois)
: Numeric::GenericBuilder<' ', false, WhoisNumericSink>(WhoisNumericSink(whois), 319, false, whois.GetSource()->nick.size() + whois.GetTarget()->nick.size() + 1)
{
GetNumeric().push(whois.GetTarget()->nick).push(std::string());
}
};
class WhoisChanList
{
const ServerConfig::OperSpyWhoisState spywhois;
WhoisChanListNumericBuilder num;
WhoisChanListNumericBuilder spynum;
std::string prefixstr;
void AddMember(Membership* memb, WhoisChanListNumericBuilder& out)
{
prefixstr.clear();
const char prefix = memb->GetPrefixChar();
if (prefix)
prefixstr.push_back(prefix);
out.Add(prefixstr, memb->chan->name);
}
public:
WhoisChanList(WhoisContextImpl& whois)
: spywhois(whois.GetSource()->HasPrivPermission("users/auspex") ? ServerInstance->Config->OperSpyWhois : ServerConfig::SPYWHOIS_NONE)
, num(whois)
, spynum(whois)
{
}
void AddVisible(Membership* memb)
{
AddMember(memb, num);
}
void AddHidden(Membership* memb)
{
if (spywhois == ServerConfig::SPYWHOIS_NONE)
return;
AddMember(memb, (spywhois == ServerConfig::SPYWHOIS_SPLITMSG ? spynum : num));
}
void Flush(WhoisContextImpl& whois)
{
num.Flush();
if (!spynum.IsEmpty())
whois.SendLine(336, "is on private/secret channels:");
spynum.Flush();
}
};
void CommandWhois::SendChanList(WhoisContextImpl& whois)
{
WhoisChanList chanlist(whois);
User* const target = whois.GetTarget();
for (User::ChanList::iterator i = target->chans.begin(); i != target->chans.end(); ++i)
{
Membership* memb = *i;
Channel* c = memb->chan;
/* If the target is the sender, neither +p nor +s is set, or
* the channel contains the user, it is not a spy channel
*/
if ((whois.IsSelfWhois()) || ((!c->IsModeSet(privatemode)) && (!c->IsModeSet(secretmode))) || (c->HasUser(whois.GetSource())))
chanlist.AddVisible(memb);
else
chanlist.AddHidden(memb);
}
chanlist.Flush(whois);
}
void CommandWhois::DoWhois(LocalUser* user, User* dest, unsigned long signon, unsigned long idle)
{
WhoisContextImpl whois(user, dest, lineevprov);
whois.SendLine(311, dest->ident, dest->GetDisplayedHost(), '*', dest->fullname);
if (whois.IsSelfWhois() || user->HasPrivPermission("users/auspex"))
{
whois.SendLine(378, InspIRCd::Format("is connecting from %s@%s %s", dest->ident.c_str(), dest->GetRealHost().c_str(), dest->GetIPString().c_str()));
}
SendChanList(whois);
if (!whois.IsSelfWhois() && !ServerInstance->Config->HideWhoisServer.empty() && !user->HasPrivPermission("servers/auspex"))
{
whois.SendLine(312, ServerInstance->Config->HideWhoisServer, ServerInstance->Config->Network);
}
else
{
whois.SendLine(312, dest->server->GetName(), dest->server->GetDesc());
}
if (dest->IsAway())
{
whois.SendLine(301, dest->awaymsg);
}
if (dest->IsOper())
{
if (ServerInstance->Config->GenericOper)
whois.SendLine(313, "is an IRC operator");
else
whois.SendLine(313, InspIRCd::Format("is %s %s on %s", (strchr("AEIOUaeiou",dest->oper->name[0]) ? "an" : "a"), dest->oper->name.c_str(), ServerInstance->Config->Network.c_str()));
}
if (whois.IsSelfWhois() || user->HasPrivPermission("users/auspex"))
{
if (dest->IsModeSet(snomaskmode))
{
whois.SendLine(379, InspIRCd::Format("is using modes %s %s", dest->GetModeLetters().c_str(), snomaskmode->GetUserParameter(dest).c_str()));
}
else
{
whois.SendLine(379, InspIRCd::Format("is using modes %s", dest->GetModeLetters().c_str()));
}
}
FOREACH_MOD_CUSTOM(evprov, Whois::EventListener, OnWhois, (whois));
/*
* We only send these if we've been provided them. That is, if hidewhois is turned off, and user is local, or
* if remote whois is queried, too. This is to keep the user hidden, and also since you can't reliably tell remote time. -- w00t
*/
if ((idle) || (signon))
{
whois.SendLine(317, idle, signon, "seconds idle, signon time");
}
whois.SendLine(318, "End of /WHOIS list.");
}
CmdResult CommandWhois::HandleRemote(const std::vector<std::string>& parameters, RemoteUser* target)
{
if (parameters.size() < 2)
return CMD_FAILURE;
User* user = ServerInstance->FindUUID(parameters[0]);
if (!user)
return CMD_FAILURE;
// User doing the whois must be on this server
LocalUser* localuser = IS_LOCAL(user);
if (!localuser)
return CMD_FAILURE;
unsigned long idle = ConvToInt(parameters.back());
DoWhois(localuser, target, target->signon, idle);
return CMD_SUCCESS;
}
CmdResult CommandWhois::HandleLocal(const std::vector<std::string>& parameters, LocalUser* user)
{
User *dest;
int userindex = 0;
unsigned long idle = 0, signon = 0;
if (CommandParser::LoopCall(user, this, parameters, 0))
return CMD_SUCCESS;
/*
* If 2 paramters are specified (/whois nick nick), ignore the first one like spanningtree
* does, and use the second one, otherwise, use the only paramter. -- djGrrr
*/
if (parameters.size() > 1)
userindex = 1;
dest = ServerInstance->FindNickOnly(parameters[userindex]);
if ((dest) && (dest->registered == REG_ALL))
{
/*
* Okay. Umpteenth attempt at doing this, so let's re-comment...
* For local users (/w localuser), we show idletime if hidewhois is disabled
* For local users (/w localuser localuser), we always show idletime, hence parameters.size() > 1 check.
* For remote users (/w remoteuser), we do NOT show idletime
* For remote users (/w remoteuser remoteuser), spanningtree will handle calling do_whois, so we can ignore this case.
* Thanks to djGrrr for not being impatient while I have a crap day coding. :p -- w00t
*/
LocalUser* localuser = IS_LOCAL(dest);
if (localuser && (ServerInstance->Config->HideWhoisServer.empty() || parameters.size() > 1))
{
idle = labs((long)((localuser->idle_lastmsg)-ServerInstance->Time()));
signon = dest->signon;
}
DoWhois(user,dest,signon,idle);
}
else
{
/* no such nick/channel */
user->WriteNumeric(Numerics::NoSuchNick(!parameters[userindex].empty() ? parameters[userindex] : "*"));
user->WriteNumeric(RPL_ENDOFWHOIS, (!parameters[userindex].empty() ? parameters[userindex] : "*"), "End of /WHOIS list.");
return CMD_FAILURE;
}
return CMD_SUCCESS;
}
COMMAND_INIT(CommandWhois)
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