/[svn]/ircd-hybrid-7.2/modules/m_invite.c
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Contents of /ircd-hybrid-7.2/modules/m_invite.c

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Revision 322 - (show annotations)
Sat Dec 24 22:04:58 2005 UTC (13 years, 9 months ago) by michael
File MIME type: text/x-chdr
File size: 6094 byte(s)
- Only locally connected clients should be checked for a valid channelmembership
  when processing the INVITE message.  Remote clients that are outside a channel
  e.g. services, are allowed to send INVITEs.  This also fixes a bug with anope
  services.  Reported by r0d3nt

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_invite.c: Invites the user to join 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 * $Id$
23 */
24
25 #include "stdinc.h"
26 #include "tools.h"
27 #include "handlers.h"
28 #include "common.h"
29 #include "channel.h"
30 #include "channel_mode.h"
31 #include "list.h"
32 #include "client.h"
33 #include "hash.h"
34 #include "irc_string.h"
35 #include "ircd.h"
36 #include "numeric.h"
37 #include "send.h"
38 #include "s_conf.h"
39 #include "s_serv.h"
40 #include "msg.h"
41 #include "parse.h"
42 #include "modules.h"
43 #include "packet.h"
44
45 static void m_invite(struct Client *, struct Client *, int, char *[]);
46
47 struct Message invite_msgtab = {
48 "INVITE", 0, 0, 3, 0, MFLG_SLOW, 0,
49 { m_unregistered, m_invite, m_invite, m_ignore, m_invite, m_ignore }
50 };
51
52 #ifndef STATIC_MODULES
53 void
54 _modinit(void)
55 {
56 mod_add_cmd(&invite_msgtab);
57 }
58
59 void
60 _moddeinit(void)
61 {
62 mod_del_cmd(&invite_msgtab);
63 }
64
65 const char *_version = "$Revision$";
66 #endif
67
68 /*
69 ** m_invite
70 ** parv[0] - sender prefix
71 ** parv[1] - user to invite
72 ** parv[2] - channel name
73 ** parv[3] - invite timestamp
74 */
75 static void
76 m_invite(struct Client *client_p, struct Client *source_p,
77 int parc, char *parv[])
78 {
79 struct Client *target_p = NULL;
80 struct Channel *chptr = NULL;
81 struct Membership *ms = NULL;
82
83 if (IsServer(source_p))
84 return;
85
86 if (*parv[2] == '\0')
87 {
88 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
89 me.name, source_p->name, "INVITE");
90 return;
91 }
92
93 if (MyClient(source_p) && !IsFloodDone(source_p))
94 flood_endgrace(source_p);
95
96 if ((target_p = find_person(client_p, parv[1])) == NULL)
97 {
98 sendto_one(source_p, form_str(ERR_NOSUCHNICK),
99 me.name, source_p->name, parv[1]);
100 return;
101 }
102
103 /* Do not send local channel invites to users if they are not on the
104 * same server as the person sending the INVITE message.
105 */
106 /* Possibly should be an error sent to source_p */
107 /* done .. there should be no problem because MyConnect(source_p) should
108 * always be true if parse() and such is working correctly --is
109 */
110 if (!MyConnect(target_p) && (*parv[2] == '&'))
111 {
112 if (ConfigServerHide.hide_servers == 0)
113 sendto_one(source_p, form_str(ERR_USERNOTONSERV),
114 me.name, source_p->name, target_p->name);
115 return;
116 }
117
118 if ((chptr = hash_find_channel(parv[2])) == NULL)
119 {
120 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
121 me.name, source_p->name, parv[2]);
122 return;
123 }
124
125 if (MyConnect(source_p) && (ms = find_channel_link(source_p, chptr)) == NULL)
126 {
127 sendto_one(source_p, form_str(ERR_NOTONCHANNEL),
128 me.name, source_p->name, chptr->chname);
129 return;
130 }
131
132 if ((chptr->mode.mode & (MODE_INVITEONLY | MODE_PRIVATE)))
133 {
134 if (MyConnect(source_p) && !has_member_flags(ms, CHFL_CHANOP|CHFL_HALFOP))
135 {
136 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
137 me.name, source_p->name, chptr->chname);
138 return;
139 }
140 }
141
142 if (IsMember(target_p, chptr))
143 {
144 sendto_one(source_p, form_str(ERR_USERONCHANNEL),
145 me.name, source_p->name, target_p->name, chptr->chname);
146 return;
147 }
148
149 if (MyConnect(source_p))
150 {
151 sendto_one(source_p, form_str(RPL_INVITING), me.name,
152 source_p->name, target_p->name, chptr->chname);
153
154 if (target_p->away)
155 sendto_one(source_p, form_str(RPL_AWAY),
156 me.name, source_p->name, target_p->name,
157 target_p->away);
158 }
159 else if (parc > 3 && IsDigit(*parv[3]))
160 if (atoi(parv[3]) > chptr->channelts)
161 return;
162
163 if (!MyConnect(target_p) && ServerInfo.hub &&
164 IsCapable(target_p->from, CAP_LL))
165 {
166 /* target_p is connected to a LL leaf, connected to us */
167 if (IsClient(source_p))
168 client_burst_if_needed(target_p->from, source_p);
169
170 if ((chptr->lazyLinkChannelExists &
171 target_p->from->localClient->serverMask) == 0)
172 burst_channel(target_p->from, chptr);
173 }
174
175 if (MyConnect(target_p))
176 {
177 sendto_one(target_p, ":%s!%s@%s INVITE %s :%s",
178 source_p->name, source_p->username,
179 source_p->host,
180 target_p->name, chptr->chname);
181
182 if (chptr->mode.mode & MODE_INVITEONLY)
183 {
184 if (chptr->mode.mode & MODE_PRIVATE)
185 {
186 /* Only do this if channel is set +i AND +p */
187 sendto_channel_local(CHFL_CHANOP|CHFL_HALFOP, NO, chptr,
188 ":%s NOTICE %s :%s is inviting %s to %s.",
189 me.name, chptr->chname, source_p->name,
190 target_p->name, chptr->chname);
191 sendto_channel_remote(source_p, client_p, CHFL_CHANOP|CHFL_HALFOP,
192 NOCAPS, NOCAPS, chptr,
193 ":%s NOTICE %s :%s is inviting %s to %s.",
194 source_p->name, chptr->chname, source_p->name,
195 target_p->name, chptr->chname);
196 }
197
198 /* Add the invite if channel is +i */
199 add_invite(chptr, target_p);
200 }
201 }
202 else if (target_p->from != client_p)
203 sendto_one(target_p, ":%s INVITE %s %s %lu",
204 ID_or_name(source_p, target_p->from),
205 ID_or_name(target_p, target_p->from),
206 chptr->chname, (unsigned long)chptr->channelts);
207 }

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