/*
 *   IRC - Internet Relay Chat, src/modules/m_silence.c
 *   (C) 2004 The UnrealIRCd Team
 *
 *   See file AUTHORS in IRC package for additional names of
 *   the programmers.
 *
 *   This program 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; either version 1, or (at your option)
 *   any later version.
 *
 *   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, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include "config.h"
#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "proto.h"
#include "channel.h"
#include <time.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#endif
#include <fcntl.h>
#include "h.h"
#ifdef STRIPBADWORDS
#include "badwords.h"
#endif
#ifdef _WIN32
#include "version.h"
#endif

DLLFUNC int m_silence(aClient *cptr, aClient *sptr, int parc, char *parv[]);

#define MSG_SILENCE 	"SILENCE"	
#define TOK_SILENCE 	"U"	

ModuleHeader MOD_HEADER(m_silence)
  = {
	"m_silence",
	"$Id$",
	"command /silence", 
	"3.2-b8-1",
	NULL 
    };

DLLFUNC int MOD_INIT(m_silence)(ModuleInfo *modinfo)
{
	add_Command(MSG_SILENCE, TOK_SILENCE, m_silence, MAXPARA);
	MARK_AS_OFFICIAL_MODULE(modinfo);
	return MOD_SUCCESS;
}

DLLFUNC int MOD_LOAD(m_silence)(int module_load)
{
	return MOD_SUCCESS;
}

DLLFUNC int MOD_UNLOAD(m_silence)(int module_unload)
{
	if (del_Command(MSG_SILENCE, TOK_SILENCE, m_silence) < 0)
	{
		sendto_realops("Failed to delete commands when unloading %s",
			MOD_HEADER(m_silence).name);
	}
	return MOD_SUCCESS;
}

/*
** m_silence
**	parv[0] = sender prefix
** From local client:
**	parv[1] = mask (NULL sends the list)
** From remote client:
**	parv[1] = nick that must be silenced
**      parv[2] = mask
*/

DLLFUNC CMD_FUNC(m_silence)
{
	Link *lp;
	aClient *acptr;
	char c, *cp;

	acptr = sptr;

	if (MyClient(sptr))
	{
		if (parc < 2 || *parv[1] == '\0'
		    || (acptr = find_person(parv[1], NULL)))
		{
			if (acptr != sptr)
				return 0;
			for (lp = acptr->user->silence; lp; lp = lp->next)
				sendto_one(sptr, rpl_str(RPL_SILELIST), me.name,
				    sptr->name, acptr->name, lp->value.cp);
			sendto_one(sptr, rpl_str(RPL_ENDOFSILELIST), me.name,
			    acptr->name);
			return 0;
		}
		cp = parv[1];
		c = *cp;
		if (c == '-' || c == '+')
			cp++;
		else if (!(index(cp, '@') || index(cp, '.') ||
		    index(cp, '!') || index(cp, '*')))
		{
			sendto_one(sptr, err_str(ERR_NOSUCHNICK), me.name,
			    parv[0], parv[1]);
			return -1;
		}
		else
			c = '+';
		cp = pretty_mask(cp);
		if ((c == '-' && !del_silence(sptr, cp)) ||
		    (c != '-' && !add_silence(sptr, cp, 1)))
		{
			sendto_prefix_one(sptr, sptr, ":%s SILENCE %c%s",
			    parv[0], c, cp);
			if (c == '-')
				sendto_serv_butone(NULL, ":%s SILENCE * -%s",
				    sptr->name, cp);
		}
	}
	else if (parc < 3 || *parv[2] == '\0')
	{
		sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, parv[0],
		    "SILENCE");
		return -1;
	}
	else if ((c = *parv[2]) == '-' || (acptr = find_person(parv[1], NULL)))
	{
		if (c == '-')
		{
			if (!del_silence(sptr, parv[2] + 1))
				sendto_serv_butone(cptr, ":%s SILENCE %s :%s",
				    parv[0], parv[1], parv[2]);
		}
		else
		{
			(void)add_silence(sptr, parv[2], 1);
			if (!MyClient(acptr))
				sendto_one(acptr, ":%s SILENCE %s :%s",
				    parv[0], parv[1], parv[2]);
		}
	}
	else
	{
		sendto_one(sptr, err_str(ERR_NOSUCHNICK), me.name, parv[0],
		    parv[1]);
		return -1;
	}
	return 0;
}