/*
* IRC – Internet Relay Chat, src/modules/m_topic.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_topic(aClient *cptr, aClient *sptr, int parc, char *parv[]);
#define MSG_TOPIC “TOPIC”
#define TOK_TOPIC “)”
ModuleHeader MOD_HEADER(m_topic)
= {
“m_topic”,
“$Id: m_topic.c,v 1.1.6.4 2005/03/13 21:03:19 syzop Exp $”,
“command /topic”,
“3.2-b8-1″,
NULL
};
DLLFUNC int MOD_INIT(m_topic)(ModuleInfo *modinfo)
{
add_Command(MSG_TOPIC, TOK_TOPIC, m_topic, 4);
MARK_AS_OFFICIAL_MODULE(modinfo);
return MOD_SUCCESS;
}
DLLFUNC int MOD_LOAD(m_topic)(int module_load)
{
return MOD_SUCCESS;
}
DLLFUNC int MOD_UNLOAD(m_topic)(int module_unload)
{
if (del_Command(MSG_TOPIC, TOK_TOPIC, m_topic) < 0)
{
sendto_realops(“Failed to delete commands when unloading %s”,
MOD_HEADER(m_topic).name);
}
return MOD_SUCCESS;
}
/*
** m_topic
** parv[0] = sender prefix
** parv[1] = topic text
**
** For servers using TS: (Lefler)
** parv[0] = sender prefix
** parv[1] = channel name
** parv[2] = topic nickname
** parv[3] = topic time
** parv[4] = topic text
*/
DLLFUNC CMD_FUNC(m_topic)
{
aChannel *chptr = NullChn;
char *topic = NULL, *name, *tnick = NULL;
TS ttime = 0;
int topiClen = 0;
int nicKlen = 0;
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], “TOPIC”);
return 0;
}
name = parv[1];
if (name && IsChannelName(name))
{
chptr = find_channel(parv[1], NullChn);
if (!chptr)
{
if (!MyClient(sptr) && !IsULine(sptr))
{
sendto_snomask
(SNO_JUNK,”Remote TOPIC for unknown channel %s (%s)”,
parv[1], backupbuf);
}
sendto_one(sptr, rpl_str(ERR_NOSUCHCHANNEL),
me.name, parv[0], name);
return 0;
}
if (parc > 2 || SecretChannel(chptr))
{
if (!IsMember(sptr, chptr) && !IsServer(sptr)
&& !IsOper(sptr) && !IsULine(sptr))
{
sendto_one(sptr, err_str(ERR_NOTONCHANNEL),
me.name, parv[0], name);
return 0;
}
if (parc > 2)
topic = parv[2];
}
if (parc > 4)
{
tnick = parv[2];
ttime = TS2ts(parv[3]);
topic = parv[4];
}
if (!topic) /* only asking for topic */
{
if ((chptr->mode.mode & MODE_OPERONLY && !IsAnOper(sptr) && !IsMember(sptr, chptr)) ||
(chptr->mode.mode & MODE_ADMONLY && !IsAdmin(sptr) && !IsMember(sptr, chptr)) ||
(is_banned(sptr,chptr,BANCHK_JOIN) && !IsAnOper(sptr) && !IsMember(sptr, chptr))) {
sendto_one(sptr, err_str(ERR_NOTONCHANNEL), me.name, parv[0], name);
return 0;
}
if (!chptr->topic)
sendto_one(sptr, rpl_str(RPL_NOTOPIC),
me.name, parv[0], chptr->chname);
else
{
sendto_one(sptr, rpl_str(RPL_TOPIC),
me.name, parv[0],
chptr->chname, chptr->topic);
sendto_one(sptr,
rpl_str(RPL_TOPICWHOTIME), me.name,
parv[0], chptr->chname,
chptr->topic_nick, chptr->topic_time);
}
}
else if (ttime && topic && (IsServer(sptr)
|| IsULine(sptr)))
{
if (!chptr->topic_time || ttime > chptr->topic_time || IsULine(sptr))
/* The IsUline is to allow services to use an old TS. Apparently
* some services do this in their topic enforcement — codemastr
*/
{
/* setting a topic */
topiClen = strlen(topic);
nicKlen = strlen(tnick);
if (chptr->topic)
MyFree(chptr->topic);
if (topiClen > (TOPICLEN))
topiClen = TOPICLEN;
if (nicKlen > (NICKLEN+USERLEN+HOSTLEN+5))
nicKlen = (NICKLEN+USERLEN+HOSTLEN+5);
chptr->topic = MyMalloc(topiClen + 1);
strncpyzt(chptr->topic, topic, topiClen + 1);
if (chptr->topic_nick)
MyFree(chptr->topic_nick);
chptr->topic_nick = MyMalloc(nicKlen + 1);
strncpyzt(chptr->topic_nick, tnick,
nicKlen + 1);
chptr->topic_time = ttime;
RunHook4(HOOKTYPE_TOPIC, cptr, sptr, chptr, topic);
sendto_serv_butone_token
(cptr, parv[0], MSG_TOPIC,
TOK_TOPIC, “%s %s %lu :%s”,
chptr->chname, chptr->topic_nick,
chptr->topic_time, chptr->topic);
sendto_channel_butserv(chptr, sptr,
“:%s TOPIC %s :%s (%s)”, parv[0],
chptr->chname, chptr->topic,
chptr->topic_nick);
}
}
else if (((chptr->mode.mode & MODE_TOPICLIMIT) == 0 ||
(is_chan_op(sptr, chptr)) || IsOper(sptr)
|| IsULine(sptr) || is_halfop(sptr, chptr)) && topic)
{
/* setting a topic */
if (chptr->mode.mode & MODE_TOPICLIMIT)
{
if (!is_halfop(sptr, chptr) && !IsULine(sptr) && !
is_chan_op(sptr, chptr))
{
#ifndef NO_OPEROVERRIDE
if ((MyClient(sptr) ? (!IsOper(sptr) || !OPCanOverride(sptr)) : !IsOper(sptr)))
{
#endif
sendto_one(sptr, err_str(ERR_CHANOPRIVSNEEDED),
me.name, parv[0], chptr->chname);
return 0;
#ifndef NO_OPEROVERRIDE
}
else
sendto_snomask(SNO_EYES,
“*** OperOverride — %s (%s@%s) TOPIC %s \’%s\’”,
sptr->name, sptr->user->username, sptr->user->realhost,
chptr->chname, topic);
/* Logging implementation added by XeRXeS */
ircd_log(LOG_OVERRIDE, “OVERRIDE: %s (%s@%s) TOPIC %s \’%s\’”,
sptr->name, sptr->user->username, sptr->user->realhost,
chptr->chname, topic);
#endif
}
}
/* ready to set… */
if (MyClient(sptr))
{
Hook *tmphook;
int n;
if ((n = dospamfilter(sptr, topic, SPAMF_TOPIC, chptr->chname)) < 0)
return n;
for (tmphook = Hooks[HOOKTYPE_PRE_LOCAL_TOPIC]; tmphook; tmphook = tmphook->next) {
topic = (*(tmphook->func.pcharfunc))(sptr, chptr, topic);
if (!topic)
return 0;
}
RunHook4(HOOKTYPE_LOCAL_TOPIC, cptr, sptr, chptr, topic);
}
/* setting a topic */
topiClen = strlen(topic);
#ifndef TOPIC_NICK_IS_NUHOST
nicKlen = strlen(sptr->name);
#else
tnick = make_nick_user_host(sptr->name, sptr->user->username, GetHost(sptr));
nicKlen = strlen(tnick);
#endif
if (chptr->topic)
MyFree(chptr->topic);
if (topiClen > (TOPICLEN))
topiClen = TOPICLEN;
if (nicKlen > (NICKLEN+USERLEN+HOSTLEN+5))
nicKlen = NICKLEN+USERLEN+HOSTLEN+5;
chptr->topic = MyMalloc(topiClen + 1);
strncpyzt(chptr->topic, topic, topiClen + 1);
if (chptr->topic_nick)
MyFree(chptr->topic_nick);
chptr->topic_nick = MyMalloc(nicKlen + 1);
#ifndef TOPIC_NICK_IS_NUHOST
strncpyzt(chptr->topic_nick, sptr->name, nicKlen + 1);
#else
strncpyzt(chptr->topic_nick, tnick, nicKlen + 1);
#endif
RunHook4(HOOKTYPE_TOPIC, cptr, sptr, chptr, topic);
if (ttime && IsServer(cptr))
chptr->topic_time = ttime;
else
chptr->topic_time = TStime();
sendto_serv_butone_token
(cptr, parv[0], MSG_TOPIC, TOK_TOPIC,
“%s %s %lu :%s”,
chptr->chname,
chptr->topic_nick, chptr->topic_time, chptr->topic);
sendto_channel_butserv(chptr, sptr,
“:%s TOPIC %s :%s”, parv[0], chptr->chname,
chptr->topic);
}
else
sendto_one(sptr, err_str(ERR_CHANOPRIVSNEEDED),
me.name, parv[0], chptr->chname);
}
return 0;
}