982 lines
27 KiB
C
982 lines
27 KiB
C
/*
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* NeoIRCd: NeoStats Group. Based on Hybird7
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* m_message.c: Sends a (PRIVMSG|NOTICE) message to a user or channel.
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*
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* Copyright (C) 2002 by the past and present ircd coders, and others.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* USA
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*
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* $Id: m_message.c,v 1.14 2003/01/29 09:28:49 fishwaldo Exp $
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*/
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#include "stdinc.h"
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#include "handlers.h"
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#include "client.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "common.h"
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#include "s_conf.h"
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#include "s_serv.h"
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#include "send.h"
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#include "msg.h"
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#include "parse.h"
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#include "modules.h"
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#include "channel.h"
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#include "channel_mode.h"
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#include "irc_string.h"
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#include "hash.h"
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#include "class.h"
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#include "msg.h"
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#include "packet.h"
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struct entity
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{
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void *ptr;
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int type;
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int flags;
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};
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static int build_target_list(int p_or_n, char *command,
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struct Client *client_p,
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struct Client *source_p,
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char *nicks_channels, char *text);
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static int flood_attack_client(int p_or_n, struct Client *source_p,
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struct Client *target_p);
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static int flood_attack_channel(int p_or_n, struct Client *source_p,
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struct Channel *chptr, char *chname);
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static struct Client* find_userhost (char *, char *, int *);
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#define ENTITY_NONE 0
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#define ENTITY_CHANNEL 1
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#define ENTITY_CHANOPS_ON_CHANNEL 2
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#define ENTITY_CLIENT 3
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static struct entity targets[512];
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static int ntargets = 0;
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static int duplicate_ptr(void *);
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static void m_message(int, char *, struct Client *,
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struct Client *, int, char **);
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static void m_privmsg(struct Client *, struct Client *, int, char **);
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static void m_notice(struct Client *, struct Client *, int, char **);
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static void msg_channel(int p_or_n, char *command,
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struct Client *client_p,
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struct Client *source_p,
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struct Channel *chptr, char *text);
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static void msg_channel_flags(int p_or_n, char *command,
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struct Client *client_p,
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struct Client *source_p,
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struct Channel *chptr, int flags, char *text);
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static void msg_client(int p_or_n, char *command,
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struct Client *source_p, struct Client *target_p,
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char *text);
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static void handle_special(int p_or_n, char *command,
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struct Client *client_p,
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struct Client *source_p, char *nick, char *text);
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struct Message privmsg_msgtab = {
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"PRIVMSG", 0, 0, 1, 0, MFLG_SLOW | MFLG_UNREG, 0L,
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{m_unregistered, m_privmsg, m_privmsg, m_privmsg}
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};
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struct Message notice_msgtab = {
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"NOTICE", 0, 0, 1, 0, MFLG_SLOW, 0L,
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{m_unregistered, m_notice, m_notice, m_notice}
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};
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#ifndef STATIC_MODULES
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void
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_modinit(void)
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{
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mod_add_cmd(&privmsg_msgtab);
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mod_add_cmd(¬ice_msgtab);
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}
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void
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_moddeinit(void)
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{
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mod_del_cmd(&privmsg_msgtab);
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mod_del_cmd(¬ice_msgtab);
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}
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const char *_version = "$Revision: 1.14 $";
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#endif
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/*
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** m_privmsg
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**
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** massive cleanup
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** rev argv 6/91
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**
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** Another massive cleanup Nov, 2000
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** (I don't think there is a single line left from 6/91. Maybe.)
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** m_privmsg and m_notice do basically the same thing.
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** in the original 2.8.2 code base, they were the same function
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** "m_message.c." When we did the great cleanup in conjuncton with bleep
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** of ircu fame, we split m_privmsg.c and m_notice.c.
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** I don't see the point of that now. Its harder to maintain, its
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** easier to introduce bugs into one version and not the other etc.
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** Really, the penalty of an extra function call isn't that big a deal folks.
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** -db Nov 13, 2000
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**
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*/
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#define PRIVMSG 0
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#define NOTICE 1
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static void
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m_privmsg(struct Client *client_p,
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struct Client *source_p, int parc, char *parv[])
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{
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/* servers have no reason to send privmsgs, yet sometimes there is cause
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* for a notice.. (for example remote kline replies) --fl_
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*/
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if (!IsPerson(source_p))
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return;
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m_message(PRIVMSG, "PRIVMSG", client_p, source_p, parc, parv);
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}
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static void
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m_notice(struct Client *client_p,
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struct Client *source_p, int parc, char *parv[])
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{
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m_message(NOTICE, "NOTICE", client_p, source_p, parc, parv);
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}
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/*
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* inputs - flag privmsg or notice
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* - pointer to command "PRIVMSG" or "NOTICE"
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* - pointer to client_p
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* - pointer to source_p
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* - pointer to channel
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*/
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static void
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m_message(int p_or_n,
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char *command,
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struct Client *client_p,
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struct Client *source_p, int parc, char *parv[])
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{
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int i;
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if (parc < 2 || *parv[1] == '\0')
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{
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if (p_or_n != NOTICE)
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sendto_one(source_p, form_str(ERR_NORECIPIENT), me.name,
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source_p->name, command);
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return;
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}
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if (parc < 3 || *parv[2] == '\0')
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{
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if (p_or_n != NOTICE)
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sendto_one(source_p, form_str(ERR_NOTEXTTOSEND), me.name,
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source_p->name);
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return;
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}
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/* Finish the flood grace period... */
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if(MyClient(source_p) && !IsFloodDone(source_p))
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flood_endgrace(source_p);
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if (build_target_list(p_or_n, command, client_p, source_p, parv[1],
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parv[2]) < 0)
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{
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/* Sigh. We need to relay this command to the hub */
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if (!ServerInfo.hub && (uplink != NULL))
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sendto_one(uplink, ":%s %s %s :%s",
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source_p->name, command, parv[1], parv[2]);
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return;
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}
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for (i = 0; i < ntargets; i++)
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{
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switch (targets[i].type)
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{
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case ENTITY_CHANNEL:
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msg_channel(p_or_n, command, client_p, source_p,
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(struct Channel *)targets[i].ptr, parv[2]);
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break;
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case ENTITY_CHANOPS_ON_CHANNEL:
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msg_channel_flags(p_or_n, command, client_p, source_p,
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(struct Channel *)targets[i].ptr,
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targets[i].flags, parv[2]);
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break;
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case ENTITY_CLIENT:
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msg_client(p_or_n, command, source_p,
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(struct Client *)targets[i].ptr, parv[2]);
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break;
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}
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}
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}
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/*
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* build_target_list
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*
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* inputs - pointer to given client_p (server)
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* - pointer to given source (oper/client etc.)
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* - pointer to list of nicks/channels
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* - pointer to table to place results
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* - pointer to text (only used if source_p is an oper)
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* output - number of valid entities
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* side effects - target_table is modified to contain a list of
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* pointers to channels or clients
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* if source client is an oper
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* all the classic old bizzare oper privmsg tricks
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* are parsed and sent as is, if prefixed with $
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* to disambiguate.
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*
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*/
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static int
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build_target_list(int p_or_n, char *command, struct Client *client_p,
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struct Client *source_p, char *nicks_channels,
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char *text)
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{
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int type;
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char *p, *nick, *target_list, ncbuf[BUFSIZE];
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struct Channel *chptr=NULL;
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struct Client *target_p;
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/* Sigh, we can't mutilate parv[1] incase we need it to send to a hub */
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if (!ServerInfo.hub && (uplink != NULL) && IsCapable(uplink, CAP_LL))
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{
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strncpy(ncbuf, nicks_channels, BUFSIZE);
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target_list = ncbuf;
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}
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else
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target_list = nicks_channels; /* skip strcpy for non-lazyleafs */
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ntargets = 0;
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for (nick = strtoken(&p, target_list, ","); nick;
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nick = strtoken(&p, (char *)NULL, ","))
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{
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char *with_prefix;
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/*
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* channels are privmsg'd a lot more than other clients, moved up
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* here plain old channel msg?
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*/
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if (IsChanPrefix(*nick))
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{
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/* ignore send of local channel to a server (should not happen) */
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if (IsServer(client_p) && *nick == '&')
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continue;
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if ((chptr = hash_find_channel(nick)) != NULL)
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{
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if (!duplicate_ptr(chptr))
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{
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if (ntargets >= ConfigFileEntry.max_targets)
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{
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sendto_one(source_p, form_str(ERR_TOOMANYTARGETS),
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me.name, source_p->name, nick);
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return (1);
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}
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targets[ntargets].ptr = (void *)chptr;
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targets[ntargets++].type = ENTITY_CHANNEL;
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}
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}
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else
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{
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if (!ServerInfo.hub && (uplink != NULL) && IsCapable(uplink, CAP_LL))
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return -1;
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else if (p_or_n != NOTICE)
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sendto_one(source_p, form_str(ERR_NOSUCHNICK), me.name,
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source_p->name, nick);
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}
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continue;
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}
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/* look for a privmsg to another client */
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if ((target_p = find_person(nick)) != NULL)
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{
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if (!duplicate_ptr(target_p))
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{
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if (ntargets >= ConfigFileEntry.max_targets)
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{
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sendto_one(source_p, form_str(ERR_TOOMANYTARGETS),
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me.name, source_p->name, nick);
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return (1);
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}
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targets[ntargets].ptr = (void *)target_p;
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targets[ntargets].type = ENTITY_CLIENT;
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targets[ntargets++].flags = 0;
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}
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continue;
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}
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/* @#channel or +#channel message ? */
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type = 0;
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with_prefix = nick;
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/* allow %+@ if someone wants to do that */
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for (;;)
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{
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if (*nick == '!')
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type |= MODE_ADMIN;
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if (*nick == '@')
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type |= MODE_CHANOP | MODE_ADMIN;
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else if (*nick == '%')
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type |= MODE_CHANOP | MODE_HALFOP | MODE_ADMIN;
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else if (*nick == '+')
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type |= MODE_CHANOP | MODE_HALFOP | MODE_VOICE | MODE_ADMIN;
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else
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break;
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nick++;
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}
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if (type != 0)
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{
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/* suggested by Mortiis */
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if (*nick == '\0') /* if its a '\0' dump it, there is no recipient */
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{
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sendto_one(source_p, form_str(ERR_NORECIPIENT),
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me.name, source_p->name, command);
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continue;
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}
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/* At this point, nick+1 should be a channel name i.e. #foo or &foo
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* if the channel is found, fine, if not report an error
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*/
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if ((chptr = hash_find_channel(nick)) != NULL)
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{
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if(!is_any_op(chptr, source_p) && !is_voiced(chptr, source_p))
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{
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sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), me.name,
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source_p->name, with_prefix);
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return(-1);
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}
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if (!duplicate_ptr(chptr))
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{
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if (ntargets >= ConfigFileEntry.max_targets)
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{
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sendto_one(source_p, form_str(ERR_TOOMANYTARGETS),
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me.name, source_p->name, nick);
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return (1);
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}
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targets[ntargets].ptr = (void *)chptr;
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targets[ntargets].type = ENTITY_CHANOPS_ON_CHANNEL;
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targets[ntargets++].flags = type;
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}
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}
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else
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{
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if (!ServerInfo.hub && (uplink != NULL) && IsCapable(uplink, CAP_LL))
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return -1;
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else if (p_or_n != NOTICE)
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sendto_one(source_p, form_str(ERR_NOSUCHNICK), me.name,
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source_p->name, nick);
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}
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continue;
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}
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if((IsOper(source_p) || IsServices(source_p)) && ((*nick == '$') || strchr(nick, '@')))
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{
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handle_special(p_or_n, command, client_p, source_p, nick, text);
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}
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else
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{
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if (!ServerInfo.hub && (uplink != NULL) && IsCapable(uplink, CAP_LL))
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return -1;
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else if(p_or_n != NOTICE)
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sendto_one(source_p, form_str(ERR_NOSUCHNICK),
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me.name, source_p->name, nick);
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}
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/* continue; */
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}
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return (1);
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}
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/*
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* duplicate_ptr
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*
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* inputs - pointer to check
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* - pointer to table of entities
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* - number of valid entities so far
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* output - YES if duplicate pointer in table, NO if not.
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* note, this does the canonize using pointers
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* side effects - NONE
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*/
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static int
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duplicate_ptr(void *ptr)
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{
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int i;
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for (i = 0; i < ntargets; i++)
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if (targets[i].ptr == ptr)
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return YES;
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return NO;
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}
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/*
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* msg_channel
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*
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* inputs - flag privmsg or notice
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* - pointer to command "PRIVMSG" or "NOTICE"
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* - pointer to client_p
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* - pointer to source_p
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* - pointer to channel
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* output - NONE
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* side effects - message given channel
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*/
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static void
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msg_channel(int p_or_n, char *command,
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struct Client *client_p,
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struct Client *source_p, struct Channel *chptr, char *text)
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{
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struct Channel *vchan = NULL;
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char *chname = NULL;
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int result;
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chname = chptr->chname;
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|
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if (!vchan)
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vchan = chptr;
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if (MyClient(source_p))
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{
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/* idle time shouldnt be reset by notices --fl */
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if ((p_or_n != NOTICE) && source_p->user)
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source_p->user->last = CurrentTime;
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}
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/* chanops and voiced can flood their own channel with impunity */
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if ((result = can_send(vchan, source_p)))
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{
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if (result == CAN_SEND_OPV ||
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!flood_attack_channel(p_or_n, source_p, vchan, chname))
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{
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sendto_channel_butone(client_p, source_p, vchan, command, ":%s", text);
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}
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}
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else
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{
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if (p_or_n != NOTICE)
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sendto_one(source_p, form_str(ERR_CANNOTSENDTOCHAN),
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me.name, source_p->name, chname);
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}
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}
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/*
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* msg_channel_flags
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*
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* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
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* say NOTICE must not auto reply
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* - pointer to command, "PRIVMSG" or "NOTICE"
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* - pointer to client_p
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* - pointer to source_p
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* - pointer to channel
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* - flags
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* - pointer to text to send
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* output - NONE
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* side effects - message given channel either chanop or voice
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*/
|
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static void
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msg_channel_flags(int p_or_n, char *command, struct Client *client_p,
|
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struct Client *source_p, struct Channel *chptr,
|
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int flags, char *text)
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{
|
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struct Channel *vchan = NULL;
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char *chname = NULL;
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int type;
|
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char c;
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if (flags & MODE_VOICE)
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{
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type = ONLY_CHANOPS_HALFOPS_VOICED;
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c = '+';
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}
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else if (flags & MODE_HALFOP)
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{
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type = ONLY_CHANOPS_HALFOPS;
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c = '%';
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}
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else if (flags & MODE_CHANOP)
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{
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type = ONLY_CHANOPS;
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c = '@';
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}
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else
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{
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type = ONLY_CHANADMIN;
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c = '!';
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}
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|
|
chname = chptr->chname;
|
|
|
|
|
|
if (!vchan)
|
|
vchan = chptr;
|
|
|
|
if (MyClient(source_p))
|
|
{
|
|
/* idletime shouldnt be reset by notice --fl */
|
|
if ((p_or_n != NOTICE) && source_p->user)
|
|
source_p->user->last = CurrentTime;
|
|
|
|
sendto_channel_local_butone(source_p, type, vchan, ":%s!%s@%s %s %c%s :%s",
|
|
source_p->name, source_p->username,
|
|
source_p->vhost, command, c, chname, text);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* another good catch, lee. we never would echo to remote clients anyway,
|
|
* so use slightly less intensive sendto_channel_local()
|
|
*/
|
|
sendto_channel_local(type, vchan, ":%s!%s@%s %s %c%s :%s",
|
|
source_p->name, source_p->username,
|
|
source_p->vhost, command, c, chname, text);
|
|
}
|
|
|
|
if (chptr->chname[0] == '&')
|
|
return;
|
|
|
|
sendto_channel_remote(source_p, client_p, type, NOCAPS, CAP_UID, vchan,
|
|
":%s %s %c%s :%s", source_p->name, command, c,
|
|
vchan->chname, text);
|
|
sendto_channel_remote(source_p, client_p, type, CAP_UID, NOCAPS, vchan,
|
|
":%s %s %c%s :%s", ID(source_p), command, c,
|
|
vchan->chname, text);
|
|
|
|
}
|
|
|
|
/*
|
|
* msg_client
|
|
*
|
|
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
|
|
* say NOTICE must not auto reply
|
|
* - pointer to command, "PRIVMSG" or "NOTICE"
|
|
* - pointer to source_p source (struct Client *)
|
|
* - pointer to target_p target (struct Client *)
|
|
* - pointer to text
|
|
* output - NONE
|
|
* side effects - message given channel either chanop or voice
|
|
*/
|
|
static void
|
|
msg_client(int p_or_n, char *command,
|
|
struct Client *source_p, struct Client *target_p, char *text)
|
|
{
|
|
if (MyClient(source_p))
|
|
{
|
|
/* reset idle time for message only if its not to self
|
|
* and its not a notice */
|
|
if ((p_or_n != NOTICE) && (source_p != target_p) && source_p->user)
|
|
source_p->user->last = CurrentTime;
|
|
}
|
|
|
|
if (MyConnect(source_p) && (p_or_n != NOTICE) &&
|
|
target_p->user && target_p->user->away)
|
|
sendto_one(source_p, form_str(RPL_AWAY), me.name,
|
|
source_p->name, target_p->name, target_p->user->away);
|
|
|
|
if (MyClient(target_p))
|
|
{
|
|
/* XXX Controversial? allow opers and services always to send through a +g */
|
|
if ((!IsServer(source_p)) && IsSetCallerId(target_p))
|
|
{
|
|
/* Here is the anti-flood bot/spambot code -db */
|
|
if (accept_message(source_p, target_p) || IsOper(source_p) || IsServices(source_p))
|
|
{
|
|
sendto_one(target_p, ":%s!%s@%s %s %s :%s",
|
|
source_p->name,
|
|
source_p->username,
|
|
source_p->vhost, command, target_p->name, text);
|
|
}
|
|
else
|
|
{
|
|
/* check for accept, flag recipient incoming message */
|
|
if (p_or_n != NOTICE)
|
|
sendto_anywhere(source_p, target_p,
|
|
"NOTICE %s :*** I'm in +g mode (server side ignore).",
|
|
source_p->name);
|
|
|
|
if ((target_p->localClient->last_caller_id_time +
|
|
ConfigFileEntry.caller_id_wait) < CurrentTime)
|
|
{
|
|
if (p_or_n != NOTICE)
|
|
sendto_anywhere(source_p, target_p,
|
|
"NOTICE %s :*** I've been informed you messaged me.",
|
|
source_p->name);
|
|
|
|
sendto_one(target_p,
|
|
":%s NOTICE %s :*** Client %s [%s@%s] is messaging you and you are +g",
|
|
me.name, target_p->name,
|
|
source_p->name, source_p->username, source_p->vhost);
|
|
|
|
target_p->localClient->last_caller_id_time = CurrentTime;
|
|
|
|
}
|
|
/* Only so opers can watch for floods */
|
|
(void)flood_attack_client(p_or_n, source_p, target_p);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* If the client is remote, we dont perform a special check for
|
|
* flooding.. as we wouldnt block their message anyway.. this means
|
|
* we dont give warnings.. we then check if theyre opered
|
|
* (to avoid flood warnings), lastly if theyre our client
|
|
* and flooding -- fl */
|
|
if (!MyClient(source_p) || IsOper(source_p) ||
|
|
(MyClient(source_p) &&
|
|
!flood_attack_client(p_or_n, source_p, target_p)))
|
|
sendto_anywhere(target_p, source_p, "%s %s :%s",
|
|
command, target_p->name, text);
|
|
}
|
|
}
|
|
else
|
|
/* The target is a remote user.. same things apply -- fl */
|
|
if (!MyClient(source_p) || IsOper(source_p) ||
|
|
(MyClient(source_p)
|
|
&& !flood_attack_client(p_or_n, source_p, target_p)))
|
|
sendto_anywhere(target_p, source_p, "%s %s :%s", command, target_p->name,
|
|
text);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* flood_attack_client
|
|
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
|
|
* say NOTICE must not auto reply
|
|
* - pointer to source Client
|
|
* - pointer to target Client
|
|
* output - 1 if target is under flood attack
|
|
* side effects - check for flood attack on target target_p
|
|
*/
|
|
static int
|
|
flood_attack_client(int p_or_n, struct Client *source_p,
|
|
struct Client *target_p)
|
|
{
|
|
int delta;
|
|
|
|
if (GlobalSetOptions.floodcount && MyConnect(target_p)
|
|
&& IsClient(source_p) && !IsConfCanFlood(source_p))
|
|
{
|
|
if ((target_p->localClient->first_received_message_time + 1)
|
|
< CurrentTime)
|
|
{
|
|
delta =
|
|
CurrentTime - target_p->localClient->first_received_message_time;
|
|
target_p->localClient->received_number_of_privmsgs -= delta;
|
|
target_p->localClient->first_received_message_time = CurrentTime;
|
|
if (target_p->localClient->received_number_of_privmsgs <= 0)
|
|
{
|
|
target_p->localClient->received_number_of_privmsgs = 0;
|
|
target_p->localClient->flood_noticed = 0;
|
|
}
|
|
}
|
|
|
|
if ((target_p->localClient->received_number_of_privmsgs >=
|
|
GlobalSetOptions.floodcount) || target_p->localClient->flood_noticed)
|
|
{
|
|
if (target_p->localClient->flood_noticed == 0)
|
|
{
|
|
sendto_realops_flags(FLAGS_BOTS|FLAGS_REMOTE, L_ALL,
|
|
"Possible Flooder %s [%s@%s] on %s target: %s",
|
|
source_p->name, source_p->username,
|
|
source_p->vhost,
|
|
source_p->user->server, target_p->name);
|
|
target_p->localClient->flood_noticed = 1;
|
|
/* add a bit of penalty */
|
|
target_p->localClient->received_number_of_privmsgs += 2;
|
|
}
|
|
if (MyClient(source_p) && (p_or_n != NOTICE))
|
|
sendto_one(source_p,
|
|
":%s NOTICE %s :*** Message to %s throttled due to flooding",
|
|
me.name, source_p->name, target_p->name);
|
|
return 1;
|
|
}
|
|
else
|
|
target_p->localClient->received_number_of_privmsgs++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* flood_attack_channel
|
|
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
|
|
* says NOTICE must not auto reply
|
|
* - pointer to source Client
|
|
* - pointer to target channel
|
|
* output - 1 if target is under flood attack
|
|
* side effects - check for flood attack on target chptr
|
|
*/
|
|
static int
|
|
flood_attack_channel(int p_or_n, struct Client *source_p,
|
|
struct Channel *chptr, char *chname)
|
|
{
|
|
int delta;
|
|
|
|
if (GlobalSetOptions.floodcount && !IsConfCanFlood(source_p))
|
|
{
|
|
if ((chptr->first_received_message_time + 1) < CurrentTime)
|
|
{
|
|
delta = CurrentTime - chptr->first_received_message_time;
|
|
chptr->received_number_of_privmsgs -= delta;
|
|
chptr->first_received_message_time = CurrentTime;
|
|
if (chptr->received_number_of_privmsgs <= 0)
|
|
{
|
|
chptr->received_number_of_privmsgs = 0;
|
|
chptr->flood_noticed = 0;
|
|
}
|
|
}
|
|
|
|
if ((chptr->received_number_of_privmsgs >= GlobalSetOptions.floodcount)
|
|
|| chptr->flood_noticed)
|
|
{
|
|
if (chptr->flood_noticed == 0)
|
|
{
|
|
sendto_realops_flags(FLAGS_BOTS|FLAGS_REMOTE, L_ALL,
|
|
"Possible Flooder %s [%s@%s] on %s target: %s",
|
|
source_p->name, source_p->username,
|
|
source_p->vhost,
|
|
source_p->user->server, chptr->chname);
|
|
chptr->flood_noticed = 1;
|
|
|
|
/* Add a bit of penalty */
|
|
chptr->received_number_of_privmsgs += 2;
|
|
}
|
|
if (MyClient(source_p) && (p_or_n != NOTICE))
|
|
sendto_one(source_p,
|
|
":%s NOTICE %s :*** Message to %s throttled due to flooding",
|
|
me.name, source_p->name, chname);
|
|
return 1;
|
|
}
|
|
else
|
|
chptr->received_number_of_privmsgs++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* handle_special
|
|
*
|
|
* inputs - server pointer
|
|
* - client pointer
|
|
* - nick stuff to grok for opers
|
|
* - text to send if grok
|
|
* output - none
|
|
* side effects - old style username@server is handled here for non opers
|
|
* opers are allowed username%hostname@server
|
|
* all the traditional oper type messages are also parsed here.
|
|
* i.e. "/msg #some.host."
|
|
* However, syntax has been changed.
|
|
* previous syntax "/msg #some.host.mask"
|
|
* now becomes "/msg $#some.host.mask"
|
|
* previous syntax of: "/msg $some.server.mask" remains
|
|
* This disambiguates the syntax.
|
|
*
|
|
* XXX N.B. dalnet changed it to nick@server as have other servers.
|
|
* we will stick with tradition for now.
|
|
* - Dianora
|
|
*/
|
|
static void
|
|
handle_special(int p_or_n, char *command, struct Client *client_p,
|
|
struct Client *source_p, char *nick, char *text)
|
|
{
|
|
struct Client *target_p;
|
|
char *host;
|
|
char *server;
|
|
char *s;
|
|
int count;
|
|
|
|
/*
|
|
* user[%host]@server addressed?
|
|
*/
|
|
if ((server = strchr(nick, '@')) != NULL)
|
|
{
|
|
count = 0;
|
|
|
|
if ((host = strchr(nick, '%')) && !(IsOper(source_p) || IsServices(source_p)))
|
|
{
|
|
sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
|
|
me.name, source_p->name);
|
|
return;
|
|
}
|
|
if ((target_p = find_server(server + 1)) != NULL)
|
|
{
|
|
if (!IsMe(target_p))
|
|
{
|
|
/*
|
|
* Not destined for a user on me :-(
|
|
*/
|
|
|
|
sendto_one(target_p, ":%s %s %s :%s", source_p->name,
|
|
command, nick, text);
|
|
if ((p_or_n != NOTICE) && source_p->user)
|
|
source_p->user->last = CurrentTime;
|
|
return;
|
|
}
|
|
|
|
*server = '\0';
|
|
|
|
if (host != NULL)
|
|
*host++ = '\0';
|
|
|
|
/* Check if someones msg'ing opers@our.server */
|
|
if (strcmp(nick, "opers") == 0)
|
|
{
|
|
if (!IsOper(source_p))
|
|
sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
|
|
me.name, source_p->name);
|
|
else
|
|
sendto_realops_flags(FLAGS_ALL, L_ALL, "To opers: From: %s: %s",
|
|
source_p->name, text);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Look for users which match the destination host
|
|
* (no host == wildcard) and if one and one only is
|
|
* found connected to me, deliver message!
|
|
*/
|
|
target_p = find_userhost(nick, host, &count);
|
|
|
|
if (target_p != NULL)
|
|
{
|
|
if (server != NULL)
|
|
*server = '@';
|
|
if (host != NULL)
|
|
*--host = '%';
|
|
|
|
if (count == 1)
|
|
{
|
|
sendto_one(target_p, ":%s %s %s :%s",
|
|
source_p->name, command, nick, text);
|
|
if ((p_or_n != NOTICE) && source_p->user)
|
|
source_p->user->last = CurrentTime;
|
|
}
|
|
else
|
|
sendto_one(source_p, form_str(ERR_TOOMANYTARGETS),
|
|
me.name, source_p->name, nick);
|
|
}
|
|
}
|
|
else if (server && *(server+1) && (target_p == NULL))
|
|
sendto_one(source_p, form_str(ERR_NOSUCHSERVER), me.name,
|
|
source_p->name, server+1);
|
|
else if (server && (target_p == NULL))
|
|
sendto_one(source_p, form_str(ERR_NOSUCHNICK), me.name,
|
|
source_p->name, nick);
|
|
return;
|
|
}
|
|
|
|
if (!IsOper(source_p))
|
|
{
|
|
sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
|
|
me.name, source_p->name);
|
|
return;
|
|
}
|
|
/*
|
|
* the following two cases allow masks in NOTICEs
|
|
* (for OPERs only)
|
|
*
|
|
* Armin, 8Jun90 (gruner@informatik.tu-muenchen.de)
|
|
*/
|
|
if(*nick == '$')
|
|
{
|
|
if((*(nick+1) == '$' || *(nick+1) == '#'))
|
|
nick++;
|
|
else if(MyOper(source_p))
|
|
{
|
|
sendto_one(source_p,
|
|
":%s NOTICE %s :The command %s %s is no longer supported, please use $%s",
|
|
me.name, source_p->name, command, nick, nick);
|
|
return;
|
|
}
|
|
/* we can send to * now. */
|
|
#if 0
|
|
if ((s = strrchr(nick, '.')) == NULL)
|
|
{
|
|
sendto_one(source_p, form_str(ERR_NOTOPLEVEL),
|
|
me.name, source_p->name, nick);
|
|
return;
|
|
}
|
|
while (*++s)
|
|
if (*s == '.' || *s == '*' || *s == '?')
|
|
break;
|
|
if (*s == '*' || *s == '?')
|
|
{
|
|
sendto_one(source_p, form_str(ERR_WILDTOPLEVEL),
|
|
me.name, source_p->name, nick);
|
|
return;
|
|
}
|
|
#endif
|
|
sendto_match_butone(IsServer(client_p) ? client_p : NULL, source_p,
|
|
nick + 1,
|
|
(*nick == '#') ? MATCH_HOST : MATCH_SERVER,
|
|
"%s $%s :%s", command, nick, text);
|
|
|
|
if ((p_or_n != NOTICE) && source_p->user)
|
|
source_p->user->last = CurrentTime;
|
|
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* find_userhost - find a user@host (server or user).
|
|
* inputs - user name to look for
|
|
* - host name to look for
|
|
* - pointer to count of number of matches found
|
|
* outputs - pointer to client if found
|
|
* - count is updated
|
|
* side effects - none
|
|
*
|
|
*/
|
|
static struct Client *
|
|
find_userhost(char *user, char *host, int *count)
|
|
{
|
|
struct Client *c2ptr;
|
|
struct Client *res = NULL;
|
|
|
|
*count = 0;
|
|
if (collapse(user) != NULL)
|
|
{
|
|
for (c2ptr = GlobalClientList; c2ptr; c2ptr = c2ptr->next)
|
|
{
|
|
if (!MyClient(c2ptr)) /* implies mine and an user */
|
|
continue;
|
|
if ((!host || match(host, c2ptr->host) || match(host, c2ptr->vhost)) &&
|
|
irccmp(user, c2ptr->username) == 0)
|
|
{
|
|
(*count)++;
|
|
res = c2ptr;
|
|
}
|
|
}
|
|
}
|
|
return (res);
|
|
}
|