mirror of
https://github.com/matrix-construct/construct
synced 2024-09-12 19:49:19 +02:00
Also fix up some return values and stuff to use bool (or void if nothing). I just did it whilst I was here. According to jilles, the return value used to signify whether or not the client had exited. This was error-prone and was fixed a long, long time ago, but the return value was left int for historical reasons. Since the return type is not used (and has no clear use case anyway), it's safe to just get rid of it.
158 lines
4.7 KiB
C
158 lines
4.7 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_webirc.c: Makes CGI:IRC users appear as coming from their real host
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2006 ircd-ratbox development team
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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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/* Usage:
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* auth {
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* user = "webirc@<cgiirc ip>"; # if identd used, put ident username instead
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* password = "<password>"; # encryption possible
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* spoof = "webirc."
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* class = "users";
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* };
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* Possible flags:
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* encrypted - password is encrypted (recommended)
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* kline_exempt - klines on the cgiirc ip are ignored
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* dlines are checked on the cgiirc ip (of course).
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* k/d/x lines, auth blocks, user limits, etc are checked using the
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* real host/ip.
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* The password should be specified unencrypted in webirc_password in
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* cgiirc.config
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*/
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#include "stdinc.h"
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#include "client.h" /* client struct */
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#include "match.h"
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#include "hostmask.h"
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#include "send.h" /* sendto_one */
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#include "numeric.h" /* ERR_xxx */
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#include "ircd.h" /* me */
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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 "s_serv.h"
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#include "hash.h"
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#include "s_conf.h"
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#include "reject.h"
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static const char webirc_desc[] = "Adds support for the WebIRC system";
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static void mr_webirc(struct MsgBuf *msgbuf_p, struct Client *, struct Client *, int, const char **);
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struct Message webirc_msgtab = {
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"WEBIRC", 0, 0, 0, 0,
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{{mr_webirc, 5}, mg_reg, mg_ignore, mg_ignore, mg_ignore, mg_reg}
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};
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mapi_clist_av1 webirc_clist[] = { &webirc_msgtab, NULL };
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DECLARE_MODULE_AV2(webirc, NULL, NULL, webirc_clist, NULL, NULL, NULL, NULL, webirc_desc);
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/*
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* mr_webirc - webirc message handler
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* parv[1] = password
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* parv[2] = fake username (we ignore this)
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* parv[3] = fake hostname
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* parv[4] = fake ip
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*/
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static void
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mr_webirc(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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struct ConfItem *aconf;
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const char *encr;
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struct rb_sockaddr_storage addr;
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if ((!strchr(parv[4], '.') && !strchr(parv[4], ':')) ||
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strlen(parv[4]) + (*parv[4] == ':') >=
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sizeof(source_p->sockhost))
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{
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sendto_one(source_p, "NOTICE * :Invalid IP");
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return;
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}
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aconf = find_address_conf(client_p->host, client_p->sockhost,
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IsGotId(client_p) ? client_p->username : "webirc",
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IsGotId(client_p) ? client_p->username : "webirc",
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(struct sockaddr *) &client_p->localClient->ip,
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client_p->localClient->ip.ss_family, NULL);
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if (aconf == NULL || !(aconf->status & CONF_CLIENT))
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return;
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if (!IsConfDoSpoofIp(aconf) || irccmp(aconf->info.name, "webirc."))
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{
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/* XXX */
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sendto_one(source_p, "NOTICE * :Not a CGI:IRC auth block");
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return;
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}
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if (EmptyString(aconf->passwd))
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{
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sendto_one(source_p, "NOTICE * :CGI:IRC auth blocks must have a password");
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return;
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}
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if (EmptyString(parv[1]))
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encr = "";
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else if (IsConfEncrypted(aconf))
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encr = rb_crypt(parv[1], aconf->passwd);
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else
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encr = parv[1];
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if (encr == NULL || strcmp(encr, aconf->passwd))
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{
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sendto_one(source_p, "NOTICE * :CGI:IRC password incorrect");
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return;
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}
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if (rb_inet_pton_sock(parv[4], (struct sockaddr *)&addr) <= 0)
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{
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sendto_one(source_p, "NOTICE * :Invalid IP");
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return;
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}
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if (*parv[4] == ':')
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{
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source_p->sockhost[0] = '0';
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rb_strlcpy(source_p->sockhost + 1, parv[4],
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sizeof(source_p->sockhost) - 1);
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}
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else
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rb_strlcpy(source_p->sockhost, parv[4],
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sizeof(source_p->sockhost));
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if(strlen(parv[3]) <= HOSTLEN)
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rb_strlcpy(source_p->host, parv[3], sizeof(source_p->host));
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else
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rb_strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
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source_p->localClient->ip = addr;
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/* Check dlines now, klines will be checked on registration */
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if((aconf = find_dline((struct sockaddr *)&source_p->localClient->ip,
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source_p->localClient->ip.ss_family)))
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{
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if(!(aconf->status & CONF_EXEMPTDLINE))
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{
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exit_client(client_p, source_p, &me, "D-lined");
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return;
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}
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}
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sendto_one(source_p, "NOTICE * :CGI:IRC host/IP set to %s %s", parv[3], parv[4]);
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}
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