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/* Copyright (C) 2003, 2004 Stephane Thiell |
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* |
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* This file is part of pxyservd (from pxys) |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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* |
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*/ |
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#define RCSID "$Id: irc_gline.c,v 1.2 2004/01/10 14:32:29 mbuna Exp $" |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#ifndef MAX_GLINEQ_ELEMS |
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#define MAX_GLINEQ_ELEMS 500 |
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#endif |
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|
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#define GLINE_PREFIX "AUTO " |
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|
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#include "irc_gline.h" |
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#include "pxyservd_log.h" |
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|
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#include <assert.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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|
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#include <peak/peak.h> |
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#include <arpa/inet.h> |
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|
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#include "cfgloader.h" |
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#include "glineq.h" |
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#include "irc_send.h" |
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#include "irc_userbase.h" |
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|
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/* This module contains a transparent glines rate limiter to avoid flooding |
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* our hub. It uses glineq to queue the glines, and a libpeak's timer to |
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* delay sendings. |
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*/ |
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|
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static void irc_gline_timer_callback(peak_timer ti, void *context); |
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static peak_timer gti; |
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|
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void |
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irc_gline_init() |
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{ |
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glineq_init(MAX_GLINEQ_ELEMS); |
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|
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gti = peak_timer_create(-1, -1, irc_gline_timer_callback, NULL); |
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peak_task_timer_add(peak_task_self(), gti); |
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peak_release(gti); |
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} |
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|
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void |
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irc_gline_finalize() |
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{ |
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peak_task_timer_remove(peak_task_self(), gti); |
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glineq_finalize(); |
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} |
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|
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static void |
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irc_gline_timer_callback(peak_timer ti, void *context) |
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{ |
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if (glineq_empty()) |
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{ |
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peak_timer_configure(gti, -1, -1); /* Off */ |
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} |
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else |
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{ |
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const struct g_args *ap = glineq_first(); |
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assert(ap != NULL); |
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|
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log_write(LOGID_GLINES, "+*@%s %ld :" GLINE_PREFIX "[%ld] %s", |
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inet_ntoa(ap->addr), gConfig->gline.delay, |
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ap->hitcnt, ap->reason); |
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|
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send_gline(ap->addr, gConfig->gline.delay, GLINE_PREFIX "[%ld] %s", |
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ap->hitcnt, ap->reason); |
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|
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glineq_pop(); |
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} |
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} |
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|
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void |
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irc_gline_send(const struct in_addr *addr, int hitcnt, const char *reason) |
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{ |
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struct g_args args; |
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double ft; |
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|
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args.addr = *addr; |
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args.hitcnt = hitcnt; |
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args.reason = reason; |
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|
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ft = peak_timer_get_firetime(gti); |
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|
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if (glineq_push(&args) == -1) |
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{ |
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/* Ugh !! */ |
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log_system("irc_gline_send: max glineQ exceeded! (delay: %fs -> %fs)", |
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ft, ft / 2.0); |
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peak_timer_configure(gti, 0, ft / 2.0); |
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|
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/* no choice but to call out */ |
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irc_gline_timer_callback(gti, NULL); |
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glineq_push(&args); |
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} |
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|
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if (ft > peak_time() + 10.0) /* not configured ? */ |
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peak_timer_configure(gti, 0, 0.5); /* Fire ASAP with 0.5s repeating */ |
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} |
