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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_invite.c: Invites the user to join a channel. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox 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 | * | |
1ebf4db4 | 24 | * $Id: m_invite.c 3259 2007-03-15 18:09:08Z jilles $ |
212380e3 AC |
25 | */ |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "tools.h" | |
29 | #include "common.h" | |
30 | #include "channel.h" | |
31 | #include "client.h" | |
32 | #include "hash.h" | |
33 | #include "irc_string.h" | |
34 | #include "ircd.h" | |
35 | #include "numeric.h" | |
36 | #include "send.h" | |
37 | #include "s_conf.h" | |
38 | #include "s_serv.h" | |
39 | #include "msg.h" | |
40 | #include "parse.h" | |
41 | #include "modules.h" | |
42 | #include "packet.h" | |
43 | ||
44 | static int m_invite(struct Client *, struct Client *, int, const char **); | |
45 | ||
46 | struct Message invite_msgtab = { | |
47 | "INVITE", 0, 0, 0, MFLG_SLOW, | |
48 | {mg_unreg, {m_invite, 3}, {m_invite, 3}, mg_ignore, mg_ignore, {m_invite, 3}} | |
49 | }; | |
50 | mapi_clist_av1 invite_clist[] = { &invite_msgtab, NULL }; | |
1ebf4db4 | 51 | DECLARE_MODULE_AV1(invite, NULL, NULL, invite_clist, NULL, NULL, "$Revision: 3259 $"); |
212380e3 AC |
52 | |
53 | static void add_invite(struct Channel *, struct Client *); | |
54 | ||
55 | /* m_invite() | |
56 | * parv[0] - sender prefix | |
57 | * parv[1] - user to invite | |
58 | * parv[2] - channel name | |
59 | */ | |
60 | static int | |
61 | m_invite(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
62 | { | |
63 | struct Client *target_p; | |
64 | struct Channel *chptr; | |
65 | struct membership *msptr; | |
66 | int store_invite = 0; | |
67 | ||
68 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
69 | flood_endgrace(source_p); | |
70 | ||
71 | if((target_p = find_person(parv[1])) == NULL) | |
72 | { | |
73 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
74 | form_str(ERR_NOSUCHNICK), | |
75 | IsDigit(parv[1][0]) ? "*" : parv[1]); | |
76 | return 0; | |
77 | } | |
78 | ||
79 | if(check_channel_name(parv[2]) == 0) | |
80 | { | |
81 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
82 | form_str(ERR_BADCHANNAME), | |
83 | parv[2]); | |
84 | return 0; | |
85 | } | |
86 | ||
87 | if(!IsChannelName(parv[2])) | |
88 | { | |
89 | if(MyClient(source_p)) | |
90 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
91 | form_str(ERR_NOSUCHCHANNEL), parv[2]); | |
92 | return 0; | |
93 | } | |
94 | ||
95 | /* Do not send local channel invites to users if they are not on the | |
96 | * same server as the person sending the INVITE message. | |
97 | */ | |
98 | if(parv[2][0] == '&' && !MyConnect(target_p)) | |
99 | { | |
100 | sendto_one(source_p, form_str(ERR_USERNOTONSERV), | |
101 | me.name, source_p->name, target_p->name); | |
102 | return 0; | |
103 | } | |
104 | ||
105 | if((chptr = find_channel(parv[2])) == NULL) | |
106 | { | |
107 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
108 | form_str(ERR_NOSUCHCHANNEL), parv[2]); | |
109 | return 0; | |
110 | } | |
111 | ||
112 | msptr = find_channel_membership(chptr, source_p); | |
113 | if(MyClient(source_p) && (msptr == NULL)) | |
114 | { | |
115 | sendto_one_numeric(source_p, ERR_NOTONCHANNEL, | |
116 | form_str(ERR_NOTONCHANNEL), parv[2]); | |
117 | return 0; | |
118 | } | |
119 | ||
120 | if(IsMember(target_p, chptr)) | |
121 | { | |
122 | sendto_one_numeric(source_p, ERR_USERONCHANNEL, | |
123 | form_str(ERR_USERONCHANNEL), | |
124 | target_p->name, parv[2]); | |
125 | return 0; | |
126 | } | |
127 | ||
307328bb JT |
128 | /* unconditionally require ops, unless the channel is +g */ |
129 | /* treat remote clients as chanops */ | |
130 | if(MyClient(source_p) && !is_chanop(msptr) && | |
131 | !(chptr->mode.mode & MODE_FREEINVITE)) | |
212380e3 | 132 | { |
307328bb JT |
133 | sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), |
134 | me.name, source_p->name, parv[2]); | |
135 | return 0; | |
212380e3 AC |
136 | } |
137 | ||
1ebf4db4 JT |
138 | /* store invites when they could affect the ability to join |
139 | * for +l/+j just check if the mode is set, this varies over time | |
140 | */ | |
141 | if(chptr->mode.mode & MODE_INVITEONLY || | |
142 | (chptr->mode.mode & MODE_REGONLY && EmptyString(target_p->user->suser)) || | |
143 | chptr->mode.limit || chptr->mode.join_num) | |
307328bb JT |
144 | store_invite = 1; |
145 | ||
212380e3 AC |
146 | if(MyConnect(source_p)) |
147 | { | |
148 | sendto_one(source_p, form_str(RPL_INVITING), | |
149 | me.name, source_p->name, | |
150 | target_p->name, parv[2]); | |
151 | if(target_p->user->away) | |
152 | sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY), | |
153 | target_p->name, target_p->user->away); | |
154 | } | |
155 | /* invite timestamp */ | |
156 | else if(parc > 3 && !EmptyString(parv[3])) | |
157 | { | |
158 | /* this should never be less than */ | |
159 | if(atol(parv[3]) > chptr->channelts) | |
160 | return 0; | |
161 | } | |
162 | ||
163 | if(MyConnect(target_p)) | |
164 | { | |
165 | sendto_one(target_p, ":%s!%s@%s INVITE %s :%s", | |
166 | source_p->name, source_p->username, source_p->host, | |
167 | target_p->name, chptr->chname); | |
168 | ||
169 | if(store_invite) | |
170 | add_invite(chptr, target_p); | |
171 | } | |
172 | else if(target_p->from != client_p) | |
173 | { | |
174 | sendto_one_prefix(target_p, source_p, "INVITE", "%s %lu", | |
175 | chptr->chname, (unsigned long) chptr->channelts); | |
176 | } | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
181 | /* add_invite() | |
182 | * | |
183 | * input - channel to add invite to, client to add | |
184 | * output - | |
185 | * side effects - client is added to invite list. | |
186 | */ | |
187 | static void | |
188 | add_invite(struct Channel *chptr, struct Client *who) | |
189 | { | |
190 | dlink_node *ptr; | |
191 | ||
192 | /* already invited? */ | |
193 | DLINK_FOREACH(ptr, who->user->invited.head) | |
194 | { | |
195 | if(ptr->data == chptr) | |
196 | return; | |
197 | } | |
198 | ||
199 | /* ok, if their invite list is too long, remove the tail */ | |
200 | if((int)dlink_list_length(&who->user->invited) >= | |
201 | ConfigChannel.max_chans_per_user) | |
202 | { | |
203 | ptr = who->user->invited.tail; | |
204 | del_invite(ptr->data, who); | |
205 | } | |
206 | ||
207 | /* add user to channel invite list */ | |
208 | dlinkAddAlloc(who, &chptr->invites); | |
209 | ||
210 | /* add channel to user invite list */ | |
211 | dlinkAddAlloc(chptr, &who->user->invited); | |
212 | } | |
213 | ||
214 |