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construct/modules/m_whowas.cc
2016-08-25 02:34:28 -07:00

140 lines
4 KiB
C++

/*
* ircd-ratbox: A slightly useful ircd.
* m_whois.c: Shows who a user was.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* 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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
using namespace ircd;
static const char whowas_desc[] =
"Provides the WHOWAS command to display information on a disconnected user";
static void m_whowas(struct MsgBuf *, client::client &, client::client &, int, const char **);
struct Message whowas_msgtab = {
"WHOWAS", 0, 0, 0, 0,
{mg_unreg, {m_whowas, 2}, {m_whowas, 4}, mg_ignore, mg_ignore, {m_whowas, 2}}
};
mapi_clist_av1 whowas_clist[] = { &whowas_msgtab, NULL };
DECLARE_MODULE_AV2(whowas, NULL, NULL, whowas_clist, NULL, NULL, NULL, NULL, whowas_desc);
/*
** m_whowas
** parv[1] = nickname queried
*/
static void
m_whowas(struct MsgBuf *msgbuf_p, client::client &client, client::client &source, int parc, const char *parv[])
{
rb_dlink_list *whowas_list;
rb_dlink_node *ptr;
int cur = 0;
int max = -1;
char *p;
const char *nick;
char tbuf[26];
long sendq_limit;
static time_t last_used = 0L;
if(my(source) && !is(source, umode::OPER))
{
if(last_used + (parc > 3 ? ConfigFileEntry.pace_wait :
ConfigFileEntry.pace_wait_simple
) > rb_current_time())
{
sendto_one(&source, form_str(RPL_LOAD2HI),
me.name, source.name, "WHOWAS");
sendto_one_numeric(&source, RPL_ENDOFWHOWAS, form_str(RPL_ENDOFWHOWAS),
parv[1]);
return;
}
else
last_used = rb_current_time();
}
if(parc > 2)
max = atoi(parv[2]);
if(parc > 3)
if(hunt_server(&client, &source, ":%s WHOWAS %s %s :%s", 3, parc, parv))
return;
if(!my(source) && (max <= 0 || max > 20))
max = 20;
if((p = (char *)strchr(parv[1], ',')))
*p = '\0';
nick = parv[1];
sendq_limit = get_sendq(&client) * 9 / 10;
const auto history(whowas::history(nick));
if(history.empty())
{
sendto_one_numeric(&source, ERR_WASNOSUCHNICK, form_str(ERR_WASNOSUCHNICK), nick);
sendto_one_numeric(&source, RPL_ENDOFWHOWAS, form_str(RPL_ENDOFWHOWAS), parv[1]);
return;
}
for(const auto &ww : history)
{
if(cur > 0 && rb_linebuf_len(&client.localClient->buf_sendq) > sendq_limit)
{
sendto_one(&source, form_str(ERR_TOOMANYMATCHES),
me.name,
source.name,
"WHOWAS");
break;
}
sendto_one(&source, form_str(RPL_WHOWASUSER),
me.name,
source.name,
ww->name,
ww->username,
ww->hostname,
ww->realname);
if(!EmptyString(ww->sockhost) && strcmp(ww->sockhost, "0") && show_ip_whowas(*ww, source))
sendto_one_numeric(&source, RPL_WHOISACTUALLY, form_str(RPL_WHOISACTUALLY),
ww->name,
ww->sockhost);
if(!EmptyString(ww->suser))
sendto_one_numeric(&source, RPL_WHOISLOGGEDIN, "%s %s :was logged in as",
ww->name,
ww->suser);
sendto_one_numeric(&source, RPL_WHOISSERVER, form_str(RPL_WHOISSERVER),
ww->name,
ww->scache? name(*ww->scache).c_str() : "*",
rb_ctime(ww->logoff, tbuf, sizeof(tbuf)));
cur++;
if(max > 0 && cur >= max)
break;
}
sendto_one_numeric(&source, RPL_ENDOFWHOWAS, form_str(RPL_ENDOFWHOWAS), parv[1]);
}