359 lines
12 KiB
C
359 lines
12 KiB
C
/*
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* IRC - Internet Relay Chat, ircd/m_notice.c
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* Copyright (C) 1990 Jarkko Oikarinen and
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* University of Oulu, Computing Center
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*
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* See file AUTHORS in IRC package for additional names of
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* the programmers.
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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 1, or (at your option)
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* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: m_notice.c 1271 2004-12-11 05:14:07Z klmitch $
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*/
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/*
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* m_functions execute protocol messages on this server:
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*
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* cptr is always NON-NULL, pointing to a *LOCAL* client
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* structure (with an open socket connected!). This
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* identifies the physical socket where the message
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* originated (or which caused the m_function to be
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* executed--some m_functions may call others...).
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*
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* sptr is the source of the message, defined by the
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* prefix part of the message if present. If not
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* or prefix not found, then sptr==cptr.
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*
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* (!IsServer(cptr)) => (cptr == sptr), because
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* prefixes are taken *only* from servers...
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*
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* (IsServer(cptr))
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* (sptr == cptr) => the message didn't
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* have the prefix.
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*
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* (sptr != cptr && IsServer(sptr) means
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* the prefix specified servername. (?)
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*
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* (sptr != cptr && !IsServer(sptr) means
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* that message originated from a remote
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* user (not local).
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*
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* combining
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*
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* (!IsServer(sptr)) means that, sptr can safely
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* taken as defining the target structure of the
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* message in this server.
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*
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* *Always* true (if 'parse' and others are working correct):
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*
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* 1) sptr->from == cptr (note: cptr->from == cptr)
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*
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* 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
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* *cannot* be a local connection, unless it's
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* actually cptr!). [MyConnect(x) should probably
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* be defined as (x == x->from) --msa ]
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*
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* parc number of variable parameter strings (if zero,
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* parv is allowed to be NULL)
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*
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* parv a NULL terminated list of parameter pointers,
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*
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* parv[0], sender (prefix string), if not present
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* this points to an empty string.
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* parv[1]...parv[parc-1]
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* pointers to additional parameters
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* parv[parc] == NULL, *always*
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*
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* note: it is guaranteed that parv[0]..parv[parc-1] are all
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* non-NULL pointers.
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*/
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#include "config.h"
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#include "client.h"
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#include "hash.h"
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#include "ircd.h"
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#include "ircd_chattr.h"
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#include "ircd_features.h"
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#include "ircd_log.h"
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#include "ircd_relay.h"
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#include "ircd_reply.h"
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#include "ircd_string.h"
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#include "mark.h"
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#include "match.h"
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#include "msg.h"
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#include "numeric.h"
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#include "send.h"
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#include "s_conf.h"
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#include "s_debug.h"
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#include "s_misc.h"
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/* #include <assert.h> -- Now using assert in ircd_log.h */
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#include <string.h>
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#if !defined(XXX_BOGUS_TEMP_HACK)
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#include "handlers.h"
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#endif
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/*
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* mr_notice - Pre-registration message handler to catch CTCP VERSION reply
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*/
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int mr_notice(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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int found_g = 0;
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char* temp;
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char cversion[VERSIONLEN + 1];
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assert(0 != cptr);
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assert(cptr == sptr);
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ClrFlag(sptr, FLAG_TS8);
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if (parc < 2 || EmptyString(parv[1]))
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return 0;
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if (parc < 3 || EmptyString(parv[parc - 1]))
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return 0;
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if (feature_bool(FEAT_CTCP_VERSIONING) && MyConnect(sptr) &&
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(!ircd_strcmp(parv[1], cli_name(&me)) || (!EmptyString(feature_str(FEAT_CTCP_VERSIONING_NICK)) &&
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!ircd_strcmp(parv[1], feature_str(FEAT_CTCP_VERSIONING_NICK))))) {
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if ((ircd_strncmp("\x01VERSION", parv[2], 8) == 0) && (strlen(parv[2]) > 10)) {
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temp = parv[2] + 9;
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ircd_strncpy(cversion, temp, VERSIONLEN + 1);
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if (cversion[strlen(cversion)-1] == '\x01')
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cversion[strlen(cversion)-1] = '\0';
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ircd_strncpy(cli_version(sptr), cversion, VERSIONLEN + 1);
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Debug((DEBUG_INFO, "Got CTCP version from %s: %s", (IsUnknown(sptr) ? "unknown" : cli_name(sptr)), cli_version(sptr)));
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if (feature_bool(FEAT_CTCP_VERSIONING_KILL)) {
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if ((found_g = find_kill(sptr))) {
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sendto_opmask_butone(0, found_g == -2 ? SNO_GLINE : SNO_OPERKILL,
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found_g == -2 ? "G-line active for %s%s" :
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"K-line active for %s%s",
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IsUnknown(sptr) ? "Unregistered Client ":"",
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get_client_name(sptr, SHOW_IP));
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return exit_client_msg(cptr, sptr, &me, "Banned Client: %s", cli_version(sptr));
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}
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}
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return 0;
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}
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}
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return 0;
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}
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/*
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* m_notice - generic message handler
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*/
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int m_notice(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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char* name;
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char* server;
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int i;
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int count;
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int found_g = 0;
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char* vector[MAXTARGETS];
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char* temp;
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char cversion[VERSIONLEN + 1];
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struct Channel* chptr;
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assert(0 != cptr);
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assert(cptr == sptr);
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ClrFlag(sptr, FLAG_TS8);
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if (parc < 2 || EmptyString(parv[1]))
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return send_reply(sptr, ERR_NORECIPIENT, MSG_NOTICE);
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if (parc < 3 || EmptyString(parv[parc - 1]))
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return send_reply(sptr, ERR_NOTEXTTOSEND);
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if (parv[1][0] == '@' && IsChannelPrefix(parv[1][1])) {
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parv[1]++; /* Get rid of '@' */
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return m_wallchops(cptr, sptr, parc, parv);
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} else if (parv[1][0] == '%' && IsChannelPrefix(parv[1][1])) {
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parv[1]++; /* Get rid of '%' */
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return m_wallhops(cptr, sptr, parc, parv);
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} else if (parv[1][0] == '+' && IsChannelPrefix(parv[1][1])) {
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parv[1]++; /* Get rid of '+' */
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return m_wallvoices(cptr, sptr, parc, parv);
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}
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if (feature_bool(FEAT_CTCP_VERSIONING) && MyConnect(sptr) &&
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(!ircd_strcmp(parv[1], cli_name(&me)) || (!EmptyString(feature_str(FEAT_CTCP_VERSIONING_NICK)) &&
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!ircd_strcmp(parv[1], feature_str(FEAT_CTCP_VERSIONING_NICK))))) {
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if ((ircd_strncmp("\x01VERSION", parv[2], 8) == 0) && (strlen(parv[2]) > 10)) {
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temp = parv[2] + 9;
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ircd_strncpy(cversion, temp, VERSIONLEN + 1);
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if (cversion[strlen(cversion)-1] == '\x01')
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cversion[strlen(cversion)-1] = '\0';
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ircd_strncpy(cli_version(sptr), cversion, VERSIONLEN + 1);
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Debug((DEBUG_INFO, "Got CTCP version from %s: %s", (IsUnknown(sptr) ? "unknown" : cli_name(sptr)), cli_version(sptr)));
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if (!IsCVersionSent(sptr)) {
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SetCVersionSent(sptr);
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sendcmdto_serv_butone(&me, CMD_MARK, cptr, "%s %s :%s",
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cli_name(sptr), MARK_CVERSION, cli_version(sptr));
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if (feature_bool(FEAT_CTCP_VERSIONING_CHAN)) {
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/* Announce to channel. */
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if ((chptr = FindChannel(feature_str(FEAT_CTCP_VERSIONING_CHANNAME)))) {
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if (feature_bool(FEAT_CTCP_VERSIONING_USEMSG))
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sendcmdto_channel_butone(&me, CMD_PRIVATE, chptr, &me, SKIP_DEAF | SKIP_BURST,
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'\0', "%H :%s has version \002%s\002", chptr,
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cli_name(sptr), cli_version(sptr));
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else
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sendcmdto_channel_butone(&me, CMD_NOTICE, chptr, &me, SKIP_DEAF | SKIP_BURST,
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'\0', "%H :%s has version \002%s\002", chptr,
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cli_name(sptr), cli_version(sptr));
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}
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}
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}
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if (feature_bool(FEAT_CTCP_VERSIONING_KILL)) {
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if ((found_g = find_kill(sptr))) {
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sendto_opmask_butone(0, found_g == -2 ? SNO_GLINE : SNO_OPERKILL,
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found_g == -2 ? "G-line active for %s%s" :
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"K-line active for %s%s",
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IsUnknown(sptr) ? "Unregistered Client ":"",
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get_client_name(sptr, SHOW_IP));
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return exit_client_msg(cptr, sptr, &me, "Banned Client: %s", cli_version(sptr));
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}
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}
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return 0;
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}
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}
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count = unique_name_vector(parv[1], ',', vector, MAXTARGETS);
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for (i = 0; i < count; ++i) {
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name = vector[i];
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/*
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* channel msg?
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*/
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if (IsChannelPrefix(*name)) {
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relay_channel_notice(sptr, name, parv[parc - 1], count);
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}
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/*
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* we have to check for the '@' at least once no matter what we do
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* handle it first so we don't have to do it twice
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*/
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else if ((server = strchr(name, '@')))
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relay_directed_notice(sptr, name, server, parv[parc - 1]);
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else
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relay_private_notice(sptr, name, parv[parc - 1]);
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}
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return 0;
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}
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/*
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* ms_notice - server message handler
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*/
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int ms_notice(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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char* name;
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char* server;
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ClrFlag(sptr, FLAG_TS8);
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if (parc < 3) {
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/*
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* we can't deliver it, sending an error back is pointless
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*/
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return protocol_violation(sptr,"Not enough params for NOTICE");
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}
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name = parv[1];
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/*
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* channel msg?
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*/
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if (IsChannelPrefix(*name)) {
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server_relay_channel_notice(sptr, name, parv[parc - 1]);
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}
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/*
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* coming from another server, we have to check this here
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*/
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else if ('$' == *name && IsOper(sptr)) {
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server_relay_masked_notice(sptr, name, parv[parc - 1]);
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}
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else if ((server = strchr(name, '@'))) {
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/*
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* XXX - can't get away with not doing everything
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* relay_directed_notice has to do
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*/
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relay_directed_notice(sptr, name, server, parv[parc - 1]);
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}
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else {
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server_relay_private_notice(sptr, name, parv[parc - 1]);
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}
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return 0;
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}
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/*
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* mo_notice - oper message handler
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*/
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int mo_notice(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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char* name;
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char* server;
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int i;
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int count;
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char* vector[MAXTARGETS];
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assert(0 != cptr);
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assert(cptr == sptr);
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ClrFlag(sptr, FLAG_TS8);
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if (parc < 2 || EmptyString(parv[1]))
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return send_reply(sptr, ERR_NORECIPIENT, MSG_NOTICE);
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if (parc < 3 || EmptyString(parv[parc - 1]))
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return send_reply(sptr, ERR_NOTEXTTOSEND);
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if (parv[1][0] == '@' && IsChannelPrefix(parv[1][1])) {
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parv[1]++; /* Get rid of '@' */
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return m_wallchops(cptr, sptr, parc, parv);
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} else if (parv[1][0] == '%' && IsChannelPrefix(parv[1][1])) {
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parv[1]++; /* Get rid of '%' */
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return m_wallhops(cptr, sptr, parc, parv);
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} else if (parv[1][0] == '+' && IsChannelPrefix(parv[1][1])) {
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parv[1]++; /* Get rid of '+' */
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return m_wallvoices(cptr, sptr, parc, parv);
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}
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count = unique_name_vector(parv[1], ',', vector, MAXTARGETS);
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for (i = 0; i < count; ++i) {
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name = vector[i];
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/*
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* channel msg?
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*/
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if (IsChannelPrefix(*name))
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relay_channel_notice(sptr, name, parv[parc - 1], count);
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else if (*name == '$')
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relay_masked_notice(sptr, name, parv[parc - 1]);
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else if ((server = strchr(name, '@')))
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relay_directed_notice(sptr, name, server, parv[parc - 1]);
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else
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relay_private_notice(sptr, name, parv[parc - 1]);
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}
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return 0;
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}
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