ViewVC Help
View File | Revision Log | Show Annotations | View Changeset | Root Listing
root/svn/ircd-hybrid-8/modules/m_knock.c
Revision: 1474
Committed: Sun Jul 22 14:44:07 2012 UTC (11 years, 7 months ago) by michael
Content type: text/x-csrc
File size: 5251 byte(s)
Log Message:
- removed &localchannels

File Contents

# User Rev Content
1 adx 30 /*
2     * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3     * m_knock.c: Requests to be invited to a channel.
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 knight 31 * $Id$
23 adx 30 */
24    
25     #include "stdinc.h"
26 michael 1011 #include "list.h"
27 adx 30 #include "channel.h"
28     #include "channel_mode.h"
29     #include "client.h"
30     #include "hash.h"
31     #include "irc_string.h"
32     #include "sprintf_irc.h"
33     #include "ircd.h"
34     #include "numeric.h"
35     #include "send.h"
36 michael 1309 #include "conf.h"
37 adx 30 #include "parse.h"
38     #include "modules.h"
39     #include "s_serv.h"
40     #include "s_user.h"
41    
42    
43     /* m_knock
44     * parv[0] = sender prefix
45     * parv[1] = channel
46     *
47     * The KNOCK command has the following syntax:
48     * :<sender> KNOCK <channel>
49     *
50     * If a user is not banned from the channel they can use the KNOCK
51     * command to have the server NOTICE the channel operators notifying
52     * they would like to join. Helpful if the channel is invite-only, the
53     * key is forgotten, or the channel is full (INVITE can bypass each one
54     * of these conditions. Concept by Dianora <db@db.net> and written by
55     * <anonymous>
56     */
57     static void
58     m_knock(struct Client *client_p, struct Client *source_p,
59     int parc, char *parv[])
60     {
61 michael 885 struct Channel *chptr = NULL;
62 adx 30
63 michael 885 if (EmptyString(parv[1]))
64 adx 30 {
65     sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
66     me.name, source_p->name, "KNOCK");
67     return;
68     }
69    
70 michael 885 if (!ConfigChannel.use_knock && MyClient(source_p))
71 adx 30 {
72 michael 885 sendto_one(source_p, form_str(ERR_KNOCKDISABLED),
73     me.name, source_p->name);
74 adx 30 return;
75     }
76    
77 michael 885 if ((chptr = hash_find_channel(parv[1])) == NULL)
78 adx 30 {
79 michael 885 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
80     me.name, source_p->name, parv[1]);
81 adx 30 return;
82     }
83    
84     /* Normal channel, just be sure they aren't on it */
85     if (IsMember(source_p, chptr))
86     {
87 michael 885 sendto_one(source_p, form_str(ERR_KNOCKONCHAN), me.name,
88     source_p->name, chptr->chname);
89 adx 30 return;
90     }
91    
92     if (!((chptr->mode.mode & MODE_INVITEONLY) || (*chptr->mode.key) ||
93     (chptr->mode.limit && dlink_list_length(&chptr->members) >=
94     chptr->mode.limit)))
95     {
96 michael 885 sendto_one(source_p, form_str(ERR_CHANOPEN), me.name,
97     source_p->name, chptr->chname);
98 adx 30 return;
99     }
100    
101 michael 885 if (MyClient(source_p))
102 adx 30 {
103 michael 886 /*
104     * Don't allow a knock if the user is banned, or the channel is private
105     */
106     if (PrivateChannel(chptr) || is_banned(chptr, source_p))
107 michael 885 {
108     sendto_one(source_p, form_str(ERR_CANNOTSENDTOCHAN),
109     me.name, source_p->name, chptr->chname);
110     return;
111     }
112 adx 30
113 michael 885 /*
114     * flood protection:
115     * allow one knock per user per knock_delay
116     * allow one knock per channel per knock_delay_channel
117     *
118     * we only limit local requests..
119     */
120     if ((source_p->localClient->last_knock + ConfigChannel.knock_delay) >
121     CurrentTime)
122     {
123     sendto_one(source_p, form_str(ERR_TOOMANYKNOCK), me.name,
124     source_p->name, chptr->chname, "user");
125     return;
126     }
127 adx 30
128 michael 885 if ((chptr->last_knock + ConfigChannel.knock_delay_channel) > CurrentTime)
129     {
130     sendto_one(source_p, form_str(ERR_TOOMANYKNOCK), me.name,
131     source_p->name, chptr->chname, "channel");
132     return;
133     }
134 adx 30
135 michael 885 source_p->localClient->last_knock = CurrentTime;
136 adx 30
137 michael 885 sendto_one(source_p, form_str(RPL_KNOCKDLVR), me.name,
138     source_p->name, chptr->chname);
139     }
140 adx 30
141     chptr->last_knock = CurrentTime;
142    
143 michael 885 if (ConfigChannel.use_knock)
144 michael 1011 sendto_channel_local(CHFL_CHANOP, 0, chptr, form_str(RPL_KNOCK),
145 michael 885 me.name, chptr->chname, chptr->chname,
146     source_p->name, source_p->username,
147     source_p->host);
148 adx 30
149 michael 1474 sendto_server(client_p, CAP_KNOCK|CAP_TS6, NOCAPS,
150 michael 886 ":%s KNOCK %s", ID(source_p), chptr->chname);
151 michael 1474 sendto_server(client_p, CAP_KNOCK, CAP_TS6,
152 michael 886 ":%s KNOCK %s", source_p->name, chptr->chname);
153 adx 30 }
154 michael 1230
155     static struct Message knock_msgtab = {
156     "KNOCK", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
157     { m_unregistered, m_knock, m_knock, m_ignore, m_knock, m_ignore }
158     };
159    
160     static void
161     module_init(void)
162     {
163     mod_add_cmd(&knock_msgtab);
164     add_capability("KNOCK", CAP_KNOCK, 1);
165     add_isupport("KNOCK", NULL, -1);
166     }
167    
168     static void
169     module_exit(void)
170     {
171     mod_del_cmd(&knock_msgtab);
172     delete_capability("KNOCK");
173     delete_isupport("KNOCK");
174     }
175    
176     struct module module_entry = {
177     .node = { NULL, NULL, NULL },
178     .name = NULL,
179     .version = "$Revision$",
180     .handle = NULL,
181     .modinit = module_init,
182     .modexit = module_exit,
183     .flags = 0
184     };

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision