1 |
/* |
2 |
* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
3 |
* m_ison.c: Provides a single line answer of whether a user is online. |
4 |
* |
5 |
* Copyright (C) 2002 by the past and present ircd coders, and others. |
6 |
* |
7 |
* This program is free software; you can redistribute it and/or modify |
8 |
* it under the terms of the GNU General Public License as published by |
9 |
* the Free Software Foundation; either version 2 of the License, or |
10 |
* (at your option) any later version. |
11 |
* |
12 |
* This program is distributed in the hope that it will be useful, |
13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 |
* GNU General Public License for more details. |
16 |
* |
17 |
* You should have received a copy of the GNU General Public License |
18 |
* along with this program; if not, write to the Free Software |
19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
20 |
* USA |
21 |
* |
22 |
* $Id$ |
23 |
*/ |
24 |
|
25 |
#include "stdinc.h" |
26 |
#include "handlers.h" |
27 |
#include "client.h" |
28 |
#include "irc_string.h" |
29 |
#include "sprintf_irc.h" |
30 |
#include "ircd.h" |
31 |
#include "numeric.h" |
32 |
#include "send.h" |
33 |
#include "msg.h" |
34 |
#include "parse.h" |
35 |
#include "modules.h" |
36 |
#include "s_conf.h" /* ConfigFileEntry */ |
37 |
#include "s_serv.h" /* uplink/IsCapable */ |
38 |
|
39 |
static void do_ison(struct Client *, struct Client *, struct Client *, int, char *[]); |
40 |
static void m_ison(struct Client *, struct Client *, int, char *[]); |
41 |
static void ms_ison(struct Client *, struct Client *, int, char *[]); |
42 |
|
43 |
struct Message ison_msgtab = { |
44 |
"ISON", 0, 0, 1, 1, MFLG_SLOW, 0, |
45 |
{m_unregistered, m_ison, ms_ison, m_ignore, m_ison, m_ignore} |
46 |
}; |
47 |
|
48 |
#ifndef STATIC_MODULES |
49 |
void |
50 |
_modinit(void) |
51 |
{ |
52 |
mod_add_cmd(&ison_msgtab); |
53 |
} |
54 |
|
55 |
void |
56 |
_moddeinit(void) |
57 |
{ |
58 |
mod_del_cmd(&ison_msgtab); |
59 |
} |
60 |
const char *_version = "$Revision$"; |
61 |
#endif |
62 |
|
63 |
|
64 |
|
65 |
/* |
66 |
* m_ison added by Darren Reed 13/8/91 to act as an efficent user indicator |
67 |
* with respect to cpu/bandwidth used. Implemented for NOTIFY feature in |
68 |
* clients. Designed to reduce number of whois requests. Can process |
69 |
* nicknames in batches as long as the maximum buffer length. |
70 |
* |
71 |
* format: |
72 |
* ISON :nicklist |
73 |
*/ |
74 |
static void |
75 |
m_ison(struct Client *client_p, struct Client *source_p, |
76 |
int parc, char *parv[]) |
77 |
{ |
78 |
struct Client *up = NULL; |
79 |
|
80 |
if (!ServerInfo.hub && uplink && IsCapable(uplink, CAP_LL)) |
81 |
up = uplink; |
82 |
|
83 |
do_ison(client_p, up, source_p, parc, parv); |
84 |
} |
85 |
|
86 |
/* |
87 |
* ms_ison added by David Taylor 04/01/2000 to handle relayed ISON requests. |
88 |
* It's slightly less bandwidth efficient than a normal ISON, but it's |
89 |
* only ever going to get relayed over one link... |
90 |
* Plus, we'll only ever relay each nick once in it's lifetime, if it |
91 |
* exists... |
92 |
* ISON :nicklist |
93 |
*/ |
94 |
static void |
95 |
ms_ison(struct Client *client_p, struct Client *source_p, |
96 |
int parc, char *parv[]) |
97 |
{ |
98 |
if (ServerInfo.hub && IsCapable(client_p, CAP_LL)) |
99 |
do_ison(client_p, NULL, source_p, parc, parv); |
100 |
} |
101 |
|
102 |
static void |
103 |
do_ison(struct Client *client_p, struct Client *up, struct Client *source_p, |
104 |
int parc, char *parv[]) |
105 |
{ |
106 |
struct Client *target_p = NULL; |
107 |
char *nick; |
108 |
char *p; |
109 |
char *current_insert_point, *current_insert_point2; |
110 |
char buf[IRCD_BUFSIZE]; |
111 |
char buf2[IRCD_BUFSIZE]; |
112 |
int len; |
113 |
int i; |
114 |
int done = 0; |
115 |
int relay_to_hub = 0; |
116 |
|
117 |
current_insert_point2 = buf2; |
118 |
*buf2 = '\0'; |
119 |
|
120 |
len = ircsprintf(buf, form_str(RPL_ISON), me.name, parv[0]); |
121 |
current_insert_point = buf + len; |
122 |
|
123 |
/* rfc1459 is ambigious about how to handle ISON |
124 |
* this should handle both interpretations. |
125 |
*/ |
126 |
for (i = 1; i < parc; i++) |
127 |
{ |
128 |
for (nick = strtoken(&p, parv[i], " "); nick; |
129 |
nick = strtoken(&p, NULL, " ")) |
130 |
{ |
131 |
if ((target_p = find_person(client_p, nick))) |
132 |
{ |
133 |
len = strlen(target_p->name); |
134 |
|
135 |
if ((current_insert_point + (len + 5)) < (buf + sizeof(buf))) |
136 |
{ |
137 |
memcpy(current_insert_point, target_p->name, len); |
138 |
current_insert_point += len; |
139 |
*current_insert_point++ = ' '; |
140 |
} |
141 |
else |
142 |
{ |
143 |
done = 1; |
144 |
break; |
145 |
} |
146 |
} |
147 |
|
148 |
if (up) |
149 |
{ |
150 |
/* Build up a single list, for use if we relay.. */ |
151 |
len = strlen(nick); |
152 |
|
153 |
if ((current_insert_point2 + len + 5) < (buf2 + sizeof(buf2))) |
154 |
{ |
155 |
memcpy(current_insert_point2, nick, len); |
156 |
current_insert_point2 += len; |
157 |
*current_insert_point2++ = ' '; |
158 |
} |
159 |
|
160 |
if (target_p == NULL) |
161 |
{ |
162 |
/* |
163 |
* XXX Ick. we need to ask our hub if nick is online. |
164 |
* it's probably safest to relay the whole command, |
165 |
* unless we can answer it fully ourselves. |
166 |
* -davidt |
167 |
*/ |
168 |
relay_to_hub = 1; |
169 |
|
170 |
/* Also cache info about nick */ |
171 |
sendto_one(up, ":%s NBURST %s", ID_or_name(&me, up), nick); |
172 |
} |
173 |
} |
174 |
} |
175 |
|
176 |
if (done) |
177 |
break; |
178 |
} |
179 |
|
180 |
/* current_insert_point--; |
181 |
* Do NOT take out the trailing space, it breaks ircII |
182 |
* --Rodder */ |
183 |
|
184 |
*current_insert_point = '\0'; |
185 |
*current_insert_point2 = '\0'; |
186 |
|
187 |
if (relay_to_hub) |
188 |
sendto_one(up, ":%s ISON :%s", ID_or_name(source_p, up), buf2); |
189 |
else |
190 |
sendto_one(source_p, "%s", buf); |
191 |
} |