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