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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2008 Thomas Stagner <aquanight@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 "xline.h"
class Shun : public XLine
{
public:
std::string matchtext;
Shun(time_t s_time, long d, const std::string& src, const std::string& re, const std::string& shunmask)
: XLine(s_time, d, src, re, "SHUN")
, matchtext(shunmask)
{
}
bool Matches(User* u) CXX11_OVERRIDE
{
// E: overrides shun
LocalUser* lu = IS_LOCAL(u);
if (lu && lu->exempt)
return false;
if (InspIRCd::Match(u->GetFullHost(), matchtext) || InspIRCd::Match(u->GetFullRealHost(), matchtext) || InspIRCd::Match(u->nick+"!"+u->ident+"@"+u->GetIPString(), matchtext))
return true;
if (InspIRCd::MatchCIDR(u->GetIPString(), matchtext, ascii_case_insensitive_map))
return true;
return false;
}
bool Matches(const std::string& s) CXX11_OVERRIDE
{
if (matchtext == s)
return true;
return false;
}
const std::string& Displayable() CXX11_OVERRIDE
{
return matchtext;
}
};
/** An XLineFactory specialized to generate shun pointers
*/
class ShunFactory : public XLineFactory
{
public:
ShunFactory() : XLineFactory("SHUN") { }
/** Generate a shun
*/
XLine* Generate(time_t set_time, long duration, std::string source, std::string reason, std::string xline_specific_mask) CXX11_OVERRIDE
{
return new Shun(set_time, duration, source, reason, xline_specific_mask);
}
bool AutoApplyToUserList(XLine* x) CXX11_OVERRIDE
{
return false;
}
};
//typedef std::vector<Shun> shunlist;
class CommandShun : public Command
{
public:
CommandShun(Module* Creator) : Command(Creator, "SHUN", 1, 3)
{
flags_needed = 'o'; this->syntax = "<nick!user@hostmask> [<shun-duration>] :<reason>";
}
CmdResult Handle(const std::vector<std::string>& parameters, User* user) CXX11_OVERRIDE
{
/* syntax: SHUN nick!user@host time :reason goes here */
/* 'time' is a human-readable timestring, like 2d3h2s. */
std::string target = parameters[0];
User *find = ServerInstance->FindNick(target);
if ((find) && (find->registered == REG_ALL))
target = std::string("*!*@") + find->GetIPString();
if (parameters.size() == 1)
{
if (ServerInstance->XLines->DelLine(parameters[0].c_str(), "SHUN", user))
{
ServerInstance->SNO->WriteToSnoMask('x', "%s removed SHUN on %s", user->nick.c_str(), parameters[0].c_str());
}
else if (ServerInstance->XLines->DelLine(target.c_str(), "SHUN", user))
{
ServerInstance->SNO->WriteToSnoMask('x',"%s removed SHUN on %s", user->nick.c_str(), target.c_str());
}
else
{
user->WriteNotice("*** Shun " + parameters[0] + " not found in list, try /stats H.");
return CMD_FAILURE;
}
}
else
{
// Adding - XXX todo make this respect <insane> tag perhaps..
unsigned long duration;
std::string expr;
if (parameters.size() > 2)
{
duration = InspIRCd::Duration(parameters[1]);
expr = parameters[2];
}
else
{
duration = 0;
expr = parameters[1];
}
Shun* r = new Shun(ServerInstance->Time(), duration, user->nick.c_str(), expr.c_str(), target.c_str());
if (ServerInstance->XLines->AddLine(r, user))
{
if (!duration)
{
ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent SHUN for %s: %s",
user->nick.c_str(), target.c_str(), expr.c_str());
}
else
{
time_t c_requires_crap = duration + ServerInstance->Time();
std::string timestr = InspIRCd::TimeString(c_requires_crap);
ServerInstance->SNO->WriteToSnoMask('x', "%s added timed SHUN for %s to expire on %s: %s",
user->nick.c_str(), target.c_str(), timestr.c_str(), expr.c_str());
}
}
else
{
delete r;
user->WriteNotice("*** Shun for " + target + " already exists");
return CMD_FAILURE;
}
}
return CMD_SUCCESS;
}
RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters) CXX11_OVERRIDE
{
if (IS_LOCAL(user))
return ROUTE_LOCALONLY; // spanningtree will send ADDLINE
return ROUTE_BROADCAST;
}
};
class ModuleShun : public Module
{
CommandShun cmd;
ShunFactory f;
insp::flat_set<std::string> ShunEnabledCommands;
bool NotifyOfShun;
bool affectopers;
public:
ModuleShun() : cmd(this)
{
}
void init() CXX11_OVERRIDE
{
ServerInstance->XLines->RegisterFactory(&f);
}
~ModuleShun()
{
ServerInstance->XLines->DelAll("SHUN");
ServerInstance->XLines->UnregisterFactory(&f);
}
void Prioritize() CXX11_OVERRIDE
{
Module* alias = ServerInstance->Modules->Find("m_alias.so");
ServerInstance->Modules->SetPriority(this, I_OnPreCommand, PRIORITY_BEFORE, alias);
}
ModResult OnStats(Stats::Context& stats) CXX11_OVERRIDE
{
if (stats.GetSymbol() != 'H')
return MOD_RES_PASSTHRU;
ServerInstance->XLines->InvokeStats("SHUN", 223, stats);
return MOD_RES_DENY;
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
ConfigTag* tag = ServerInstance->Config->ConfValue("shun");
std::string cmds = tag->getString("enabledcommands");
std::transform(cmds.begin(), cmds.end(), cmds.begin(), ::toupper);
if (cmds.empty())
cmds = "PING PONG QUIT";
ShunEnabledCommands.clear();
irc::spacesepstream dcmds(cmds);
std::string thiscmd;
while (dcmds.GetToken(thiscmd))
{
ShunEnabledCommands.insert(thiscmd);
}
NotifyOfShun = tag->getBool("notifyuser", true);
affectopers = tag->getBool("affectopers", false);
}
ModResult OnPreCommand(std::string &command, std::vector<std::string>& parameters, LocalUser* user, bool validated, const std::string &original_line) CXX11_OVERRIDE
{
if (validated)
return MOD_RES_PASSTHRU;
if (!ServerInstance->XLines->MatchesLine("SHUN", user))
{
/* Not shunned, don't touch. */
return MOD_RES_PASSTHRU;
}
if (!affectopers && user->IsOper())
{
/* Don't do anything if the user is an operator and affectopers isn't set */
return MOD_RES_PASSTHRU;
}
if (!ShunEnabledCommands.count(command))
{
if (NotifyOfShun)
user->WriteNotice("*** Command " + command + " not processed, as you have been blocked from issuing commands (SHUN)");
return MOD_RES_DENY;
}
if (command == "QUIT")
{
/* Allow QUIT but dont show any quit message */
parameters.clear();
}
else if ((command == "PART") && (parameters.size() > 1))
{
/* same for PART */
parameters[1].clear();
}
/* if we're here, allow the command. */
return MOD_RES_PASSTHRU;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides the /SHUN command, which stops a user from executing all except configured commands.",VF_VENDOR|VF_COMMON);
}
};
MODULE_INIT(ModuleShun)
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