/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2009 Matt Smith <dz@inspircd.org>
 *   Copyright (C) 2007-2008 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"
#include "xline.h"
/** Handle /ZLINE. These command handlers can be reloaded by the core,
 * and handle basic RFC1459 commands. Commands within modules work
 * the same way, however, they can be fully unloaded, where these
 * may not.
 */
class CommandZline : public Command
{
 public:
	/** Constructor for zline.
	 */
	CommandZline ( Module* parent) : Command(parent,"ZLINE",1,3) { flags_needed = 'o'; Penalty = 0; syntax = "<ipmask> [<duration> :<reason>]"; }
	/** Handle command.
	 * @param parameters The parameters to the comamnd
	 * @param pcnt The number of parameters passed to teh command
	 * @param user The user issuing the command
	 * @return A value from CmdResult to indicate command success or failure.
	 */
	CmdResult Handle(const std::vector<std::string>& parameters, User *user);
};

CmdResult CommandZline::Handle (const std::vector<std::string>& parameters, User *user)
{
	std::string target = parameters[0];

	if (parameters.size() >= 3)
	{
		if (target.find('!') != std::string::npos)
		{
			user->WriteNotice("*** You cannot include a nickname in a zline, a zline must ban only an IP mask");
			return CMD_FAILURE;
		}

		User *u = ServerInstance->FindNick(target);

		if ((u) && (u->registered == REG_ALL))
		{
			target = u->GetIPString();
		}

		const char* ipaddr = target.c_str();

		if (strchr(ipaddr,'@'))
		{
			while (*ipaddr != '@')
				ipaddr++;
			ipaddr++;
		}

		if (ServerInstance->IPMatchesEveryone(ipaddr,user))
			return CMD_FAILURE;

		unsigned long duration = InspIRCd::Duration(parameters[1]);
		ZLine* zl = new ZLine(ServerInstance->Time(), duration, user->nick.c_str(), parameters[2].c_str(), ipaddr);
		if (ServerInstance->XLines->AddLine(zl,user))
		{
			if (!duration)
			{
				ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent Z-line for %s: %s", user->nick.c_str(), ipaddr, parameters[2].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 Z-line for %s, expires on %s: %s",user->nick.c_str(),ipaddr,
						timestr.c_str(), parameters[2].c_str());
			}
			ServerInstance->XLines->ApplyLines();
		}
		else
		{
			delete zl;
			user->WriteNotice("*** Z-Line for " + std::string(ipaddr) + " already exists");
		}
	}
	else
	{
		if (ServerInstance->XLines->DelLine(target.c_str(),"Z",user))
		{
			ServerInstance->SNO->WriteToSnoMask('x',"%s removed Z-line on %s",user->nick.c_str(),target.c_str());
		}
		else
		{
			user->WriteNotice("*** Z-Line " + target + " not found in list, try /stats Z.");
			return CMD_FAILURE;
		}
	}

	return CMD_SUCCESS;
}

COMMAND_INIT(CommandZline)