1 |
/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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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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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "list.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 "conf.h" |
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#include "s_serv.h" |
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#include "send.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 "packet.h" |
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|
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|
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struct entity |
43 |
{ |
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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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|
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static int build_target_list(int p_or_n, const 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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|
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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); |
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static struct Client* find_userhost (char *, char *, int *); |
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|
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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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|
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static struct entity targets[512]; |
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static int ntargets = 0; |
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|
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static int duplicate_ptr(void *); |
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|
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static void m_message(int, const char *, struct Client *, |
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struct Client *, int, char **); |
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|
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static void msg_channel(int p_or_n, const 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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|
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static void msg_channel_flags(int p_or_n, const 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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|
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static void msg_client(int p_or_n, const char *command, |
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struct Client *source_p, struct Client *target_p, |
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char *text); |
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|
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static void handle_special(int p_or_n, const 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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|
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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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|
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#define PRIVMSG 0 |
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#define NOTICE 1 |
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|
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static void |
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m_privmsg(struct Client *client_p, struct Client *source_p, |
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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 (!IsClient(source_p)) |
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return; |
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|
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m_message(PRIVMSG, "PRIVMSG", client_p, source_p, parc, parv); |
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} |
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|
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static void |
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m_notice(struct Client *client_p, struct Client *source_p, |
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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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/* |
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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, const char *command, 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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|
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if (parc < 2 || EmptyString(parv[1])) |
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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), |
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ID_or_name(&me, client_p), |
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ID_or_name(source_p, client_p), command); |
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return; |
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} |
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|
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if (parc < 3 || EmptyString(parv[2])) |
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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), |
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ID_or_name(&me, client_p), |
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ID_or_name(source_p, client_p)); |
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return; |
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} |
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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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|
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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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return; |
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|
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for (i = 0; i < ntargets; i++) |
173 |
{ |
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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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|
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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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|
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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, const char *command, struct Client *client_p, |
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struct Client *source_p, char *nicks_channels, char *text) |
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{ |
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int type; |
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char *p = NULL, *nick, *target_list; |
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struct Channel *chptr = NULL; |
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struct Client *target_p = NULL; |
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|
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target_list = nicks_channels; |
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|
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ntargets = 0; |
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|
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for (nick = strtoken(&p, target_list, ","); nick; |
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nick = strtoken(&p, 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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|
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if (IsChanPrefix(*nick)) |
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{ |
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if ((chptr = hash_find_channel(nick)) != NULL) |
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{ |
237 |
if (!duplicate_ptr(chptr)) |
238 |
{ |
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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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ID_or_name(&me, client_p), |
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ID_or_name(source_p, client_p), nick, |
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ConfigFileEntry.max_targets); |
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return (1); |
246 |
} |
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targets[ntargets].ptr = (void *)chptr; |
248 |
targets[ntargets++].type = ENTITY_CHANNEL; |
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} |
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} |
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else |
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{ |
253 |
if (p_or_n != NOTICE) |
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sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
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ID_or_name(&me, client_p), |
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ID_or_name(source_p, client_p), nick); |
257 |
} |
258 |
continue; |
259 |
} |
260 |
|
261 |
/* look for a privmsg to another client */ |
262 |
if ((target_p = find_person(client_p, nick)) != NULL) |
263 |
{ |
264 |
if (!duplicate_ptr(target_p)) |
265 |
{ |
266 |
if (ntargets >= ConfigFileEntry.max_targets) |
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{ |
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sendto_one(source_p, form_str(ERR_TOOMANYTARGETS), |
269 |
ID_or_name(&me, client_p), |
270 |
ID_or_name(source_p, client_p), nick, |
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ConfigFileEntry.max_targets); |
272 |
return (1); |
273 |
} |
274 |
targets[ntargets].ptr = (void *)target_p; |
275 |
targets[ntargets].type = ENTITY_CLIENT; |
276 |
targets[ntargets++].flags = 0; |
277 |
} |
278 |
continue; |
279 |
} |
280 |
|
281 |
/* @#channel or +#channel message ? */ |
282 |
|
283 |
type = 0; |
284 |
with_prefix = nick; |
285 |
/* allow %+@ if someone wants to do that */ |
286 |
for (; ;) |
287 |
{ |
288 |
if (*nick == '@') |
289 |
type |= CHFL_CHANOP; |
290 |
#ifdef HALFOPS |
291 |
else if (*nick == '%') |
292 |
type |= CHFL_CHANOP | CHFL_HALFOP; |
293 |
#endif |
294 |
else if (*nick == '+') |
295 |
type |= CHFL_CHANOP | CHFL_HALFOP | CHFL_VOICE; |
296 |
else |
297 |
break; |
298 |
nick++; |
299 |
} |
300 |
|
301 |
if (type != 0) |
302 |
{ |
303 |
/* suggested by Mortiis */ |
304 |
if (*nick == '\0') /* if its a '\0' dump it, there is no recipient */ |
305 |
{ |
306 |
sendto_one(source_p, form_str(ERR_NORECIPIENT), |
307 |
ID_or_name(&me, client_p), |
308 |
ID_or_name(source_p, client_p), command); |
309 |
continue; |
310 |
} |
311 |
|
312 |
/* At this point, nick+1 should be a channel name i.e. #foo or &foo |
313 |
* if the channel is found, fine, if not report an error |
314 |
*/ |
315 |
|
316 |
if ((chptr = hash_find_channel(nick)) != NULL) |
317 |
{ |
318 |
if (IsClient(source_p) && !HasFlag(source_p, FLAGS_SERVICE)) |
319 |
{ |
320 |
if (!has_member_flags(find_channel_link(source_p, chptr), |
321 |
CHFL_CHANOP|CHFL_HALFOP|CHFL_VOICE)) |
322 |
{ |
323 |
sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), |
324 |
ID_or_name(&me, client_p), |
325 |
ID_or_name(source_p, client_p), with_prefix); |
326 |
return(-1); |
327 |
} |
328 |
} |
329 |
|
330 |
if (!duplicate_ptr(chptr)) |
331 |
{ |
332 |
if (ntargets >= ConfigFileEntry.max_targets) |
333 |
{ |
334 |
sendto_one(source_p, form_str(ERR_TOOMANYTARGETS), |
335 |
ID_or_name(&me, client_p), |
336 |
ID_or_name(source_p, client_p), nick, |
337 |
ConfigFileEntry.max_targets); |
338 |
return(1); |
339 |
} |
340 |
targets[ntargets].ptr = (void *)chptr; |
341 |
targets[ntargets].type = ENTITY_CHANOPS_ON_CHANNEL; |
342 |
targets[ntargets++].flags = type; |
343 |
} |
344 |
} |
345 |
else |
346 |
{ |
347 |
if (p_or_n != NOTICE) |
348 |
sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
349 |
ID_or_name(&me, client_p), |
350 |
ID_or_name(source_p, client_p), nick); |
351 |
} |
352 |
continue; |
353 |
} |
354 |
|
355 |
if ((*nick == '$') || strchr(nick, '@') != NULL) |
356 |
{ |
357 |
handle_special(p_or_n, command, client_p, source_p, nick, text); |
358 |
} |
359 |
else |
360 |
{ |
361 |
if (p_or_n != NOTICE) |
362 |
{ |
363 |
if (!IsDigit(*nick) || MyClient(source_p)) |
364 |
sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
365 |
ID_or_name(&me, client_p), |
366 |
ID_or_name(source_p, client_p), nick); |
367 |
} |
368 |
} |
369 |
/* continue; */ |
370 |
} |
371 |
|
372 |
return(1); |
373 |
} |
374 |
|
375 |
/* duplicate_ptr() |
376 |
* |
377 |
* inputs - pointer to check |
378 |
* - pointer to table of entities |
379 |
* - number of valid entities so far |
380 |
* output - YES if duplicate pointer in table, NO if not. |
381 |
* note, this does the canonize using pointers |
382 |
* side effects - NONE |
383 |
*/ |
384 |
static int |
385 |
duplicate_ptr(void *ptr) |
386 |
{ |
387 |
int i; |
388 |
|
389 |
for (i = 0; i < ntargets; i++) |
390 |
{ |
391 |
if (targets[i].ptr == ptr) |
392 |
return(1); |
393 |
} |
394 |
|
395 |
return(0); |
396 |
} |
397 |
|
398 |
/* msg_channel() |
399 |
* |
400 |
* inputs - flag privmsg or notice |
401 |
* - pointer to command "PRIVMSG" or "NOTICE" |
402 |
* - pointer to client_p |
403 |
* - pointer to source_p |
404 |
* - pointer to channel |
405 |
* output - NONE |
406 |
* side effects - message given channel |
407 |
*/ |
408 |
static void |
409 |
msg_channel(int p_or_n, const char *command, struct Client *client_p, |
410 |
struct Client *source_p, struct Channel *chptr, char *text) |
411 |
{ |
412 |
int result; |
413 |
|
414 |
if (MyClient(source_p)) |
415 |
{ |
416 |
/* idle time shouldnt be reset by notices --fl */ |
417 |
if (p_or_n != NOTICE) |
418 |
source_p->localClient->last_privmsg = CurrentTime; |
419 |
} |
420 |
|
421 |
/* chanops and voiced can flood their own channel with impunity */ |
422 |
if ((result = can_send(chptr, source_p, NULL)) < 0) |
423 |
{ |
424 |
if (result == CAN_SEND_OPV || |
425 |
!flood_attack_channel(p_or_n, source_p, chptr)) |
426 |
sendto_channel_butone(client_p, source_p, chptr, 0, "%s %s :%s", |
427 |
command, chptr->chname, text); |
428 |
} |
429 |
else |
430 |
{ |
431 |
if (p_or_n != NOTICE) |
432 |
sendto_one(source_p, form_str(ERR_CANNOTSENDTOCHAN), |
433 |
ID_or_name(&me, client_p), |
434 |
ID_or_name(source_p, client_p), chptr->chname); |
435 |
} |
436 |
} |
437 |
|
438 |
/* msg_channel_flags() |
439 |
* |
440 |
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC |
441 |
* say NOTICE must not auto reply |
442 |
* - pointer to command, "PRIVMSG" or "NOTICE" |
443 |
* - pointer to client_p |
444 |
* - pointer to source_p |
445 |
* - pointer to channel |
446 |
* - flags |
447 |
* - pointer to text to send |
448 |
* output - NONE |
449 |
* side effects - message given channel either chanop or voice |
450 |
*/ |
451 |
static void |
452 |
msg_channel_flags(int p_or_n, const char *command, struct Client *client_p, |
453 |
struct Client *source_p, struct Channel *chptr, |
454 |
int flags, char *text) |
455 |
{ |
456 |
unsigned int type; |
457 |
char c; |
458 |
|
459 |
if (flags & CHFL_VOICE) |
460 |
{ |
461 |
type = CHFL_VOICE|CHFL_HALFOP|CHFL_CHANOP; |
462 |
c = '+'; |
463 |
} |
464 |
#ifdef HALFOPS |
465 |
else if (flags & CHFL_HALFOP) |
466 |
{ |
467 |
type = CHFL_HALFOP|CHFL_CHANOP; |
468 |
c = '%'; |
469 |
} |
470 |
#endif |
471 |
else |
472 |
{ |
473 |
type = CHFL_CHANOP; |
474 |
c = '@'; |
475 |
} |
476 |
|
477 |
if (MyClient(source_p) && p_or_n != NOTICE) |
478 |
source_p->localClient->last_privmsg = CurrentTime; |
479 |
|
480 |
sendto_channel_butone(client_p, source_p, chptr, type, "%s %c%s :%s", |
481 |
command, c, chptr->chname, text); |
482 |
} |
483 |
|
484 |
/* msg_client() |
485 |
* |
486 |
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC |
487 |
* say NOTICE must not auto reply |
488 |
* - pointer to command, "PRIVMSG" or "NOTICE" |
489 |
* - pointer to source_p source (struct Client *) |
490 |
* - pointer to target_p target (struct Client *) |
491 |
* - pointer to text |
492 |
* output - NONE |
493 |
* side effects - message given channel either chanop or voice |
494 |
*/ |
495 |
static void |
496 |
msg_client(int p_or_n, const char *command, struct Client *source_p, |
497 |
struct Client *target_p, char *text) |
498 |
{ |
499 |
if (MyConnect(source_p)) |
500 |
{ |
501 |
/* |
502 |
* reset idle time for message only if it's not a notice |
503 |
*/ |
504 |
if ((p_or_n != NOTICE)) |
505 |
source_p->localClient->last_privmsg = CurrentTime; |
506 |
|
507 |
if ((p_or_n != NOTICE) && target_p->away[0]) |
508 |
sendto_one(source_p, form_str(RPL_AWAY), me.name, |
509 |
source_p->name, target_p->name, target_p->away); |
510 |
|
511 |
if (HasUMode(target_p, UMODE_REGONLY) && target_p != source_p) |
512 |
{ |
513 |
if (!HasUMode(source_p, UMODE_REGISTERED|UMODE_OPER)) |
514 |
{ |
515 |
if (p_or_n != NOTICE) |
516 |
sendto_one(source_p, form_str(ERR_NONONREG), me.name, source_p->name, |
517 |
target_p->name); |
518 |
return; |
519 |
} |
520 |
} |
521 |
} |
522 |
|
523 |
if (MyClient(target_p)) |
524 |
{ |
525 |
if (!IsServer(source_p) && HasUMode(target_p, UMODE_CALLERID|UMODE_SOFTCALLERID)) |
526 |
{ |
527 |
/* Here is the anti-flood bot/spambot code -db */ |
528 |
if (accept_message(source_p, target_p) || HasFlag(source_p, FLAGS_SERVICE) || |
529 |
(HasUMode(source_p, UMODE_OPER) && (ConfigFileEntry.opers_bypass_callerid == 1))) |
530 |
{ |
531 |
sendto_one(target_p, ":%s!%s@%s %s %s :%s", |
532 |
source_p->name, source_p->username, |
533 |
source_p->host, command, target_p->name, text); |
534 |
} |
535 |
else |
536 |
{ |
537 |
/* check for accept, flag recipient incoming message */ |
538 |
if (p_or_n != NOTICE) |
539 |
sendto_one(source_p, form_str(RPL_TARGUMODEG), |
540 |
ID_or_name(&me, source_p->from), |
541 |
ID_or_name(source_p, source_p->from), target_p->name); |
542 |
|
543 |
if ((target_p->localClient->last_caller_id_time + |
544 |
ConfigFileEntry.caller_id_wait) < CurrentTime) |
545 |
{ |
546 |
if (p_or_n != NOTICE) |
547 |
sendto_one(source_p, form_str(RPL_TARGNOTIFY), |
548 |
ID_or_name(&me, source_p->from), |
549 |
ID_or_name(source_p, source_p->from), target_p->name); |
550 |
|
551 |
sendto_one(target_p, form_str(RPL_UMODEGMSG), |
552 |
me.name, target_p->name, |
553 |
get_client_name(source_p, HIDE_IP)); |
554 |
|
555 |
target_p->localClient->last_caller_id_time = CurrentTime; |
556 |
|
557 |
} |
558 |
/* Only so opers can watch for floods */ |
559 |
flood_attack_client(p_or_n, source_p, target_p); |
560 |
} |
561 |
} |
562 |
else |
563 |
{ |
564 |
/* If the client is remote, we dont perform a special check for |
565 |
* flooding.. as we wouldnt block their message anyway.. this means |
566 |
* we dont give warnings.. we then check if theyre opered |
567 |
* (to avoid flood warnings), lastly if theyre our client |
568 |
* and flooding -- fl */ |
569 |
if (!MyClient(source_p) || HasUMode(source_p, UMODE_OPER) || |
570 |
(MyClient(source_p) && |
571 |
!flood_attack_client(p_or_n, source_p, target_p))) |
572 |
sendto_anywhere(target_p, source_p, "%s %s :%s", |
573 |
command, target_p->name, text); |
574 |
} |
575 |
} |
576 |
else |
577 |
/* The target is a remote user.. same things apply -- fl */ |
578 |
if (!MyClient(source_p) || HasUMode(source_p, UMODE_OPER) || |
579 |
(MyClient(source_p) |
580 |
&& !flood_attack_client(p_or_n, source_p, target_p))) |
581 |
sendto_anywhere(target_p, source_p, "%s %s :%s", command, target_p->name, |
582 |
text); |
583 |
} |
584 |
|
585 |
/* flood_attack_client() |
586 |
* |
587 |
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC |
588 |
* say NOTICE must not auto reply |
589 |
* - pointer to source Client |
590 |
* - pointer to target Client |
591 |
* output - 1 if target is under flood attack |
592 |
* side effects - check for flood attack on target target_p |
593 |
*/ |
594 |
static int |
595 |
flood_attack_client(int p_or_n, struct Client *source_p, |
596 |
struct Client *target_p) |
597 |
{ |
598 |
int delta; |
599 |
|
600 |
if (GlobalSetOptions.floodcount && MyConnect(target_p) |
601 |
&& IsClient(source_p) && !IsCanFlood(source_p)) |
602 |
{ |
603 |
if ((target_p->localClient->first_received_message_time + 1) |
604 |
< CurrentTime) |
605 |
{ |
606 |
delta = |
607 |
CurrentTime - target_p->localClient->first_received_message_time; |
608 |
target_p->localClient->received_number_of_privmsgs -= delta; |
609 |
target_p->localClient->first_received_message_time = CurrentTime; |
610 |
|
611 |
if (target_p->localClient->received_number_of_privmsgs <= 0) |
612 |
{ |
613 |
target_p->localClient->received_number_of_privmsgs = 0; |
614 |
DelFlag(target_p, FLAGS_FLOOD_NOTICED); |
615 |
} |
616 |
} |
617 |
|
618 |
if ((target_p->localClient->received_number_of_privmsgs >= |
619 |
GlobalSetOptions.floodcount) || HasFlag(target_p, FLAGS_FLOOD_NOTICED)) |
620 |
{ |
621 |
if (!HasFlag(target_p, FLAGS_FLOOD_NOTICED)) |
622 |
{ |
623 |
sendto_realops_flags(UMODE_BOTS, L_ALL, SEND_NOTICE, |
624 |
"Possible Flooder %s on %s target: %s", |
625 |
get_client_name(source_p, HIDE_IP), |
626 |
source_p->servptr->name, target_p->name); |
627 |
AddFlag(target_p, FLAGS_FLOOD_NOTICED); |
628 |
/* add a bit of penalty */ |
629 |
target_p->localClient->received_number_of_privmsgs += 2; |
630 |
} |
631 |
|
632 |
if (MyClient(source_p) && (p_or_n != NOTICE)) |
633 |
sendto_one(source_p, |
634 |
":%s NOTICE %s :*** Message to %s throttled due to flooding", |
635 |
me.name, source_p->name, target_p->name); |
636 |
return(1); |
637 |
} |
638 |
else |
639 |
target_p->localClient->received_number_of_privmsgs++; |
640 |
} |
641 |
|
642 |
return(0); |
643 |
} |
644 |
|
645 |
/* flood_attack_channel() |
646 |
* |
647 |
* inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC |
648 |
* says NOTICE must not auto reply |
649 |
* - pointer to source Client |
650 |
* - pointer to target channel |
651 |
* output - 1 if target is under flood attack |
652 |
* side effects - check for flood attack on target chptr |
653 |
*/ |
654 |
static int |
655 |
flood_attack_channel(int p_or_n, struct Client *source_p, |
656 |
struct Channel *chptr) |
657 |
{ |
658 |
int delta; |
659 |
|
660 |
if (GlobalSetOptions.floodcount && !IsCanFlood(source_p)) |
661 |
{ |
662 |
if ((chptr->first_received_message_time + 1) < CurrentTime) |
663 |
{ |
664 |
delta = CurrentTime - chptr->first_received_message_time; |
665 |
chptr->received_number_of_privmsgs -= delta; |
666 |
chptr->first_received_message_time = CurrentTime; |
667 |
if (chptr->received_number_of_privmsgs <= 0) |
668 |
{ |
669 |
chptr->received_number_of_privmsgs = 0; |
670 |
ClearFloodNoticed(chptr); |
671 |
} |
672 |
} |
673 |
|
674 |
if ((chptr->received_number_of_privmsgs >= GlobalSetOptions.floodcount) |
675 |
|| IsSetFloodNoticed(chptr)) |
676 |
{ |
677 |
if (!IsSetFloodNoticed(chptr)) |
678 |
{ |
679 |
sendto_realops_flags(UMODE_BOTS, L_ALL, SEND_NOTICE, |
680 |
"Possible Flooder %s on %s target: %s", |
681 |
get_client_name(source_p, HIDE_IP), |
682 |
source_p->servptr->name, chptr->chname); |
683 |
SetFloodNoticed(chptr); |
684 |
|
685 |
/* Add a bit of penalty */ |
686 |
chptr->received_number_of_privmsgs += 2; |
687 |
} |
688 |
if (MyClient(source_p) && (p_or_n != NOTICE)) |
689 |
sendto_one(source_p, |
690 |
":%s NOTICE %s :*** Message to %s throttled due to flooding", |
691 |
me.name, source_p->name, chptr->chname); |
692 |
return(1); |
693 |
} |
694 |
else |
695 |
chptr->received_number_of_privmsgs++; |
696 |
} |
697 |
|
698 |
return(0); |
699 |
} |
700 |
|
701 |
/* handle_special() |
702 |
* |
703 |
* inputs - server pointer |
704 |
* - client pointer |
705 |
* - nick stuff to grok for opers |
706 |
* - text to send if grok |
707 |
* output - none |
708 |
* side effects - old style username@server is handled here for non opers |
709 |
* opers are allowed username%hostname@server |
710 |
* all the traditional oper type messages are also parsed here. |
711 |
* i.e. "/msg #some.host." |
712 |
* However, syntax has been changed. |
713 |
* previous syntax "/msg #some.host.mask" |
714 |
* now becomes "/msg $#some.host.mask" |
715 |
* previous syntax of: "/msg $some.server.mask" remains |
716 |
* This disambiguates the syntax. |
717 |
* |
718 |
* XXX N.B. dalnet changed it to nick@server as have other servers. |
719 |
* we will stick with tradition for now. |
720 |
* - Dianora |
721 |
*/ |
722 |
static void |
723 |
handle_special(int p_or_n, const char *command, struct Client *client_p, |
724 |
struct Client *source_p, char *nick, char *text) |
725 |
{ |
726 |
struct Client *target_p; |
727 |
char *host; |
728 |
char *server; |
729 |
char *s; |
730 |
int count; |
731 |
|
732 |
/* |
733 |
* user[%host]@server addressed? |
734 |
*/ |
735 |
if ((server = strchr(nick, '@')) != NULL) |
736 |
{ |
737 |
count = 0; |
738 |
|
739 |
if ((host = strchr(nick, '%')) && !HasUMode(source_p, UMODE_OPER)) |
740 |
{ |
741 |
sendto_one(source_p, form_str(ERR_NOPRIVILEGES), |
742 |
ID_or_name(&me, client_p), |
743 |
ID_or_name(source_p, client_p)); |
744 |
return; |
745 |
} |
746 |
|
747 |
if ((target_p = hash_find_server(server + 1)) != NULL) |
748 |
{ |
749 |
if (!IsMe(target_p)) |
750 |
{ |
751 |
/* |
752 |
* Not destined for a user on me :-( |
753 |
*/ |
754 |
sendto_one(target_p, ":%s %s %s :%s", |
755 |
ID_or_name(source_p, target_p->from), |
756 |
command, nick, text); |
757 |
if ((p_or_n != NOTICE) && MyClient(source_p)) |
758 |
source_p->localClient->last_privmsg = CurrentTime; |
759 |
return; |
760 |
} |
761 |
|
762 |
*server = '\0'; |
763 |
|
764 |
if (host != NULL) |
765 |
*host++ = '\0'; |
766 |
|
767 |
/* |
768 |
* Look for users which match the destination host |
769 |
* (no host == wildcard) and if one and one only is |
770 |
* found connected to me, deliver message! |
771 |
*/ |
772 |
target_p = find_userhost(nick, host, &count); |
773 |
|
774 |
if (target_p != NULL) |
775 |
{ |
776 |
if (server != NULL) |
777 |
*server = '@'; |
778 |
if (host != NULL) |
779 |
*--host = '%'; |
780 |
|
781 |
if (count == 1) |
782 |
{ |
783 |
sendto_one(target_p, ":%s!%s@%s %s %s :%s", |
784 |
source_p->name, source_p->username, source_p->host, |
785 |
command, nick, text); |
786 |
if ((p_or_n != NOTICE) && MyClient(source_p)) |
787 |
source_p->localClient->last_privmsg = CurrentTime; |
788 |
} |
789 |
else |
790 |
sendto_one(source_p, form_str(ERR_TOOMANYTARGETS), |
791 |
ID_or_name(&me, client_p), |
792 |
ID_or_name(source_p, client_p), nick, |
793 |
ConfigFileEntry.max_targets); |
794 |
} |
795 |
} |
796 |
else if (server && *(server+1) && (target_p == NULL)) |
797 |
sendto_one(source_p, form_str(ERR_NOSUCHSERVER), |
798 |
ID_or_name(&me, client_p), |
799 |
ID_or_name(source_p, client_p), server+1); |
800 |
else if (server && (target_p == NULL)) |
801 |
sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
802 |
ID_or_name(&me, client_p), |
803 |
ID_or_name(source_p, client_p), nick); |
804 |
return; |
805 |
} |
806 |
|
807 |
if (!HasUMode(source_p, UMODE_OPER)) |
808 |
{ |
809 |
sendto_one(source_p, form_str(ERR_NOPRIVILEGES), |
810 |
ID_or_name(&me, client_p), |
811 |
ID_or_name(source_p, client_p)); |
812 |
return; |
813 |
} |
814 |
|
815 |
/* |
816 |
* the following two cases allow masks in NOTICEs |
817 |
* (for OPERs only) |
818 |
* |
819 |
* Armin, 8Jun90 (gruner@informatik.tu-muenchen.de) |
820 |
*/ |
821 |
if (*nick == '$') |
822 |
{ |
823 |
if ((*(nick+1) == '$' || *(nick+1) == '#')) |
824 |
nick++; |
825 |
else if (MyClient(source_p) && HasUMode(source_p, UMODE_OPER)) |
826 |
{ |
827 |
sendto_one(source_p, |
828 |
":%s NOTICE %s :The command %s %s is no longer supported, please use $%s", |
829 |
me.name, source_p->name, command, nick, nick); |
830 |
return; |
831 |
} |
832 |
|
833 |
if ((s = strrchr(nick, '.')) == NULL) |
834 |
{ |
835 |
sendto_one(source_p, form_str(ERR_NOTOPLEVEL), |
836 |
me.name, source_p->name, nick); |
837 |
return; |
838 |
} |
839 |
|
840 |
while (*++s) |
841 |
if (*s == '.' || *s == '*' || *s == '?') |
842 |
break; |
843 |
|
844 |
if (*s == '*' || *s == '?') |
845 |
{ |
846 |
sendto_one(source_p, form_str(ERR_WILDTOPLEVEL), |
847 |
ID_or_name(&me, client_p), |
848 |
ID_or_name(source_p, client_p), nick); |
849 |
return; |
850 |
} |
851 |
|
852 |
sendto_match_butone(IsServer(client_p) ? client_p : NULL, source_p, |
853 |
nick + 1, (*nick == '#') ? MATCH_HOST : MATCH_SERVER, |
854 |
"%s $%s :%s", command, nick, text); |
855 |
|
856 |
if ((p_or_n != NOTICE) && MyClient(source_p)) |
857 |
source_p->localClient->last_privmsg = CurrentTime; |
858 |
|
859 |
return; |
860 |
} |
861 |
} |
862 |
|
863 |
/* |
864 |
* find_userhost - find a user@host (server or user). |
865 |
* inputs - user name to look for |
866 |
* - host name to look for |
867 |
* - pointer to count of number of matches found |
868 |
* outputs - pointer to client if found |
869 |
* - count is updated |
870 |
* side effects - none |
871 |
* |
872 |
*/ |
873 |
static struct Client * |
874 |
find_userhost(char *user, char *host, int *count) |
875 |
{ |
876 |
struct Client *c2ptr; |
877 |
struct Client *res = NULL; |
878 |
dlink_node *lc2ptr; |
879 |
|
880 |
*count = 0; |
881 |
|
882 |
if (collapse(user) != NULL) |
883 |
{ |
884 |
DLINK_FOREACH(lc2ptr, local_client_list.head) |
885 |
{ |
886 |
c2ptr = lc2ptr->data; |
887 |
|
888 |
if (!IsClient(c2ptr)) /* something other than a client */ |
889 |
continue; |
890 |
|
891 |
if ((!host || !match(host, c2ptr->host)) && |
892 |
irccmp(user, c2ptr->username) == 0) |
893 |
{ |
894 |
(*count)++; |
895 |
res = c2ptr; |
896 |
} |
897 |
} |
898 |
} |
899 |
|
900 |
return(res); |
901 |
} |
902 |
|
903 |
static struct Message privmsg_msgtab = { |
904 |
"PRIVMSG", 0, 0, 0, MAXPARA, MFLG_SLOW, 0, |
905 |
{m_unregistered, m_privmsg, m_privmsg, m_ignore, m_privmsg, m_ignore} |
906 |
}; |
907 |
|
908 |
static struct Message notice_msgtab = { |
909 |
"NOTICE", 0, 0, 0, MAXPARA, MFLG_SLOW, 0, |
910 |
{m_unregistered, m_notice, m_notice, m_ignore, m_notice, m_ignore} |
911 |
}; |
912 |
|
913 |
static void |
914 |
module_init(void) |
915 |
{ |
916 |
mod_add_cmd(&privmsg_msgtab); |
917 |
mod_add_cmd(¬ice_msgtab); |
918 |
} |
919 |
|
920 |
static void |
921 |
module_exit(void) |
922 |
{ |
923 |
mod_del_cmd(&privmsg_msgtab); |
924 |
mod_del_cmd(¬ice_msgtab); |
925 |
} |
926 |
|
927 |
struct module module_entry = { |
928 |
.node = { NULL, NULL, NULL }, |
929 |
.name = NULL, |
930 |
.version = "$Revision$", |
931 |
.handle = NULL, |
932 |
.modinit = module_init, |
933 |
.modexit = module_exit, |
934 |
.flags = MODULE_FLAG_CORE |
935 |
}; |