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root/svn/ircd-hybrid/trunk/modules/m_webirc.c
Revision: 1634
Committed: Sun Nov 4 15:53:56 2012 UTC (11 years, 4 months ago) by michael
Content type: text/x-csrc
Original Path: ircd-hybrid/trunk/contrib/m_webirc.c
File size: 5601 byte(s)
Log Message:
- fixed compile warnings in contrib/

File Contents

# User Rev Content
1 michael 1262 /*
2     * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3     * m_webirc.c: Makes CGI:IRC users appear as coming from their real host
4     *
5     * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6     * Copyright (C) 2002-2006 ircd-ratbox development team
7     * Copyright (C) 1996-2012 Hybrid Development Team
8     *
9     * This program is free software; you can redistribute it and/or modify
10     * it under the terms of the GNU General Public License as published by
11     * the Free Software Foundation; either version 2 of the License, or
12     * (at your option) any later version.
13     *
14     * This program is distributed in the hope that it will be useful,
15     * but WITHOUT ANY WARRANTY; without even the implied warranty of
16     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17     * GNU General Public License for more details.
18     *
19     * You should have received a copy of the GNU General Public License
20     * along with this program; if not, write to the Free Software
21     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22     * USA
23     *
24     * $Id$
25     */
26    
27     #include "stdinc.h"
28     #include "list.h"
29     #include "client.h"
30     #include "ircd.h"
31     #include "numeric.h"
32     #include "send.h"
33     #include "irc_string.h"
34     #include "hash.h"
35     #include "parse.h"
36     #include "modules.h"
37 michael 1309 #include "conf.h"
38 michael 1262 #include "hostmask.h"
39    
40     /*
41     * Usage:
42     *
43     * auth {
44     * user = "webirc@<cgiirc ip>"; # if identd used, put ident username instead
45     * password = "<password>"; # encryption possible
46     * spoof = "webirc."
47     * class = "users";
48 michael 1543 * encrypted = yes; # [Using encryption is highly recommended]
49 michael 1262 * };
50     *
51     * Possible flags:
52     * kline_exempt - k/g lines on the cgiirc ip are ignored
53     * gline_exempt - glines on the cgiirc ip are ignored
54     *
55     * dlines are checked on the cgiirc ip (of course).
56     * k/d/g/x lines, auth blocks, user limits, etc are checked using the
57     * real host/ip.
58     *
59     * The password should be specified unencrypted in webirc_password in
60     * cgiirc.config
61     */
62    
63     static int
64     invalid_hostname(const char *hostname)
65     {
66     const char *p = hostname;
67     unsigned int has_sep = 0;
68    
69     assert(p != NULL);
70    
71     if (*p == '.' || *p == ':')
72     return 1;
73    
74     for (; *p; ++p)
75     {
76     if (!IsHostChar(*p))
77     return 1;
78     if (*p == '.' || *p == ':')
79     ++has_sep;
80     }
81    
82     return !has_sep;
83     }
84    
85     /*
86     * mr_webirc
87     * parv[0] = sender prefix
88     * parv[1] = password
89     * parv[2] = fake username (we ignore this)
90     * parv[3] = fake hostname
91     * parv[4] = fake ip
92     */
93     static void
94     mr_webirc(struct Client *client_p, struct Client *source_p, int parc, char *parv[])
95     {
96 michael 1632 struct MaskItem *conf = NULL;
97 michael 1262 struct addrinfo hints, *res;
98    
99     assert(source_p == client_p);
100    
101     if (invalid_hostname(parv[4]))
102     {
103     sendto_one(source_p, ":%s NOTICE %s :CGI:IRC: Invalid IP", me.name,
104     source_p->name[0] ? source_p->name : "*");
105     return;
106     }
107    
108 michael 1632 conf = find_address_conf(source_p->host,
109     IsGotId(source_p) ? source_p->username : "webirc",
110     &source_p->localClient->ip,
111     source_p->localClient->aftype, parv[1]);
112     if (conf == NULL || !IsConfClient(conf))
113 michael 1262 return;
114    
115 michael 1632 if (!IsConfDoSpoofIp(conf) || irccmp(conf->name, "webirc."))
116 michael 1262 {
117     sendto_one(source_p, ":%s NOTICE %s :Not a CGI:IRC auth block", me.name,
118     source_p->name[0] ? source_p->name : "*");
119     return;
120     }
121    
122 michael 1632 if (EmptyString(conf->passwd))
123 michael 1262 {
124     sendto_one(source_p, ":%s NOTICE %s :CGI:IRC auth blocks must have a password",
125     me.name, source_p->name[0] ? source_p->name : "*");
126     return;
127     }
128    
129 michael 1632 if (!match_conf_password(parv[1], conf))
130 michael 1262 {
131     sendto_one(source_p, ":%s NOTICE %s :CGI:IRC password incorrect",
132     me.name, source_p->name[0] ? source_p->name : "*");
133     return;
134     }
135    
136     memset(&hints, 0, sizeof(hints));
137    
138     hints.ai_family = AF_UNSPEC;
139     hints.ai_socktype = SOCK_STREAM;
140     hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
141    
142     if (getaddrinfo(parv[4], NULL, &hints, &res))
143     {
144    
145     sendto_one(source_p, ":%s NOTICE %s :Invalid CGI:IRC IP %s", me.name,
146     source_p->name[0] ? source_p->name : "*", parv[4]);
147     return;
148     }
149    
150     assert(res != NULL);
151    
152     memcpy(&source_p->localClient->ip, res->ai_addr, res->ai_addrlen);
153     source_p->localClient->ip.ss_len = res->ai_addrlen;
154     source_p->localClient->ip.ss.ss_family = res->ai_family;
155     source_p->localClient->aftype = res->ai_family;
156     freeaddrinfo(res);
157    
158     strlcpy(source_p->sockhost, parv[4], sizeof(source_p->sockhost));
159    
160     if (strlen(parv[3]) <= HOSTLEN)
161     strlcpy(source_p->host, parv[3], sizeof(source_p->host));
162     else
163     strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
164    
165     /* Check dlines now, k/glines will be checked on registration */
166 michael 1632 if ((conf = find_dline_conf(&client_p->localClient->ip,
167     client_p->localClient->aftype)))
168 michael 1262 {
169 michael 1634 if (!(conf->status & CONF_EXEMPT))
170 michael 1262 {
171     exit_client(client_p, &me, "D-lined");
172     return;
173     }
174     }
175    
176     sendto_one(source_p, ":%s NOTICE %s :CGI:IRC host/IP set to %s %s", me.name,
177     source_p->name[0] ? source_p->name : "*", parv[3], parv[4]);
178     }
179    
180     static struct Message webirc_msgtab = {
181     "WEBIRC", 0, 0, 5, 0, MFLG_SLOW, 0,
182     { mr_webirc, m_ignore, m_ignore, m_ignore, m_ignore, m_ignore }
183     };
184    
185     static void
186     module_init(void)
187     {
188     mod_add_cmd(&webirc_msgtab);
189     }
190    
191     static void
192     module_exit(void)
193     {
194     mod_del_cmd(&webirc_msgtab);
195     }
196    
197     struct module module_entry = {
198     .node = { NULL, NULL, NULL },
199     .name = NULL,
200     .version = "$Revision$",
201     .handle = NULL,
202     .modinit = module_init,
203     .modexit = module_exit,
204     .flags = 0
205     };

Properties

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svn:eol-style native
svn:keywords Id Revision