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212380e3 | 1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_kick.c: Kicks a user from 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 | * | |
0bba1788 | 24 | * $Id: m_kick.c 3317 2007-03-28 23:17:06Z jilles $ |
212380e3 | 25 | */ |
26 | ||
27 | #include "stdinc.h" | |
212380e3 | 28 | #include "channel.h" |
29 | #include "client.h" | |
13ae2f4b | 30 | #include "match.h" |
212380e3 | 31 | #include "ircd.h" |
32 | #include "numeric.h" | |
33 | #include "send.h" | |
34 | #include "msg.h" | |
35 | #include "modules.h" | |
36 | #include "parse.h" | |
37 | #include "hash.h" | |
38 | #include "packet.h" | |
39 | #include "s_serv.h" | |
fbd2e5da | 40 | #include "s_conf.h" |
16d8d9fc | 41 | #include "hook.h" |
212380e3 | 42 | |
43 | static int m_kick(struct Client *, struct Client *, int, const char **); | |
44 | #define mg_kick { m_kick, 3 } | |
45 | ||
46 | struct Message kick_msgtab = { | |
47 | "KICK", 0, 0, 0, MFLG_SLOW, | |
48 | {mg_unreg, mg_kick, mg_kick, mg_kick, mg_ignore, mg_kick} | |
49 | }; | |
50 | ||
51 | mapi_clist_av1 kick_clist[] = { &kick_msgtab, NULL }; | |
52 | ||
0bba1788 | 53 | DECLARE_MODULE_AV1(kick, NULL, NULL, kick_clist, NULL, NULL, "$Revision: 3317 $"); |
212380e3 | 54 | |
55 | /* | |
56 | ** m_kick | |
212380e3 | 57 | ** parv[1] = channel |
58 | ** parv[2] = client to kick | |
59 | ** parv[3] = kick comment | |
60 | */ | |
61 | static int | |
62 | m_kick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
63 | { | |
64 | struct membership *msptr; | |
65 | struct Client *who; | |
66 | struct Channel *chptr; | |
67 | int chasing = 0; | |
68 | char *comment; | |
69 | const char *name; | |
70 | char *p = NULL; | |
bc4764ae | 71 | char *text = rb_strdup(""); |
212380e3 | 72 | const char *user; |
73 | static char buf[BUFSIZE]; | |
fbd2e5da | 74 | int is_override = 0; |
212380e3 | 75 | |
76 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
77 | flood_endgrace(source_p); | |
78 | ||
212380e3 | 79 | *buf = '\0'; |
80 | if((p = strchr(parv[1], ','))) | |
81 | *p = '\0'; | |
82 | ||
83 | name = parv[1]; | |
84 | ||
85 | chptr = find_channel(name); | |
86 | if(chptr == NULL) | |
87 | { | |
88 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name); | |
89 | return 0; | |
90 | } | |
91 | ||
6a520112 G |
92 | user = parv[2]; /* strtoken(&p2, parv[2], ","); */ |
93 | ||
94 | if(!(who = find_chasing(source_p, user, &chasing))) | |
95 | { | |
96 | return 0; | |
97 | } | |
98 | ||
212380e3 | 99 | if(!IsServer(source_p)) |
100 | { | |
101 | msptr = find_channel_membership(chptr, source_p); | |
102 | ||
103 | if((msptr == NULL) && MyConnect(source_p)) | |
104 | { | |
105 | sendto_one_numeric(source_p, ERR_NOTONCHANNEL, | |
106 | form_str(ERR_NOTONCHANNEL), name); | |
107 | return 0; | |
108 | } | |
109 | ||
fbd2e5da | 110 | if(!can_kick_deop(msptr, find_channel_membership(chptr, who))) |
212380e3 | 111 | { |
112 | if(MyConnect(source_p)) | |
113 | { | |
03d65f8f | 114 | if(IsOverride(source_p)) |
fbd2e5da JH |
115 | is_override = 1; |
116 | else | |
117 | { | |
64dd2404 | 118 | sendto_one(source_p, ":%s 482 %s %s :You do not have the proper privledges to kick this user", |
fbd2e5da JH |
119 | me.name, source_p->name, name); |
120 | return 0; | |
121 | } | |
212380e3 | 122 | } |
123 | ||
124 | /* If its a TS 0 channel, do it the old way */ | |
fbd2e5da | 125 | else if(chptr->channelts == 0) |
212380e3 | 126 | { |
127 | sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), | |
128 | get_id(&me, source_p), get_id(source_p, source_p), name); | |
129 | return 0; | |
130 | } | |
131 | } | |
132 | ||
133 | /* Its a user doing a kick, but is not showing as chanop locally | |
134 | * its also not a user ON -my- server, and the channel has a TS. | |
135 | * There are two cases we can get to this point then... | |
136 | * | |
137 | * 1) connect burst is happening, and for some reason a legit | |
138 | * op has sent a KICK, but the SJOIN hasn't happened yet or | |
139 | * been seen. (who knows.. due to lag...) | |
140 | * | |
141 | * 2) The channel is desynced. That can STILL happen with TS | |
142 | * | |
143 | * Now, the old code roger wrote, would allow the KICK to | |
144 | * go through. Thats quite legit, but lets weird things like | |
145 | * KICKS by users who appear not to be chanopped happen, | |
146 | * or even neater, they appear not to be on the channel. | |
147 | * This fits every definition of a desync, doesn't it? ;-) | |
148 | * So I will allow the KICK, otherwise, things are MUCH worse. | |
149 | * But I will warn it as a possible desync. | |
150 | * | |
151 | * -Dianora | |
152 | */ | |
153 | } | |
154 | ||
155 | if((p = strchr(parv[2], ','))) | |
156 | *p = '\0'; | |
157 | ||
212380e3 | 158 | msptr = find_channel_membership(chptr, who); |
159 | ||
160 | if(msptr != NULL) | |
161 | { | |
162 | if(MyClient(source_p) && IsService(who)) | |
163 | { | |
164 | sendto_one(source_p, form_str(ERR_ISCHANSERVICE), | |
165 | me.name, source_p->name, who->name, chptr->chname); | |
166 | return 0; | |
167 | } | |
168 | ||
f9e91ece G |
169 | if(MyClient(source_p) && chptr->mode.mode & MODE_NOKICK) |
170 | { | |
171 | sendto_one_numeric(source_p, ERR_NOKICK, | |
172 | form_str(ERR_NOKICK), | |
173 | chptr->chname); | |
174 | return 0; | |
175 | } | |
176 | ||
f428b59f JH |
177 | if (MyClient(source_p) && chptr->mode.mode & MODE_NOOPERKICK && IsOper(who)) |
178 | { | |
179 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
180 | "Overriding KICK from %s on %s in %s (channel is +M)", | |
181 | source_p->name, who->name, chptr->chname); | |
182 | sendto_one_numeric(source_p, ERR_ISCHANSERVICE, | |
183 | "%s %s :Cannot kick IRC operators from that channel.", | |
184 | who->name, chptr->chname); | |
185 | return 0; | |
186 | } | |
187 | ||
16d8d9fc WP |
188 | if(MyClient(source_p)) |
189 | { | |
190 | hook_data_channel_approval hookdata; | |
191 | ||
192 | hookdata.client = source_p; | |
193 | hookdata.chptr = chptr; | |
194 | hookdata.target = who; | |
195 | hookdata.approved = 1; | |
196 | ||
197 | call_hook(h_can_kick, &hookdata); | |
198 | ||
199 | if (!hookdata.approved) | |
200 | return 0; | |
201 | } | |
202 | ||
0bba1788 | 203 | comment = LOCAL_COPY((EmptyString(parv[3])) ? who->name : parv[3]); |
204 | if(strlen(comment) > (size_t) REASONLEN) | |
205 | comment[REASONLEN] = '\0'; | |
206 | ||
fbd2e5da | 207 | if(is_override) |
34d8ef4d JH |
208 | { |
209 | sendto_wallops_flags(UMODE_WALLOP, &me, | |
fbd2e5da | 210 | "%s is overriding KICK [%s] on [%s] [%s]", |
e7c1f6a5 | 211 | get_oper_name(source_p), who->name, chptr->chname, comment); |
34d8ef4d JH |
212 | sendto_server(NULL, chptr, NOCAPS, NOCAPS, |
213 | ":%s WALLOPS :%s is overriding KICK [%s] on [%s] [%s]", | |
71ea6069 | 214 | me.name, get_oper_name(source_p), who->name, chptr->chname, comment); |
34d8ef4d | 215 | } |
fbd2e5da | 216 | |
212380e3 | 217 | /* jdc |
218 | * - In the case of a server kicking a user (i.e. CLEARCHAN), | |
219 | * the kick should show up as coming from the server which did | |
220 | * the kick. | |
221 | * - Personally, flame and I believe that server kicks shouldn't | |
222 | * be sent anyways. Just waiting for some oper to abuse it... | |
223 | */ | |
224 | if(IsServer(source_p)) | |
225 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s KICK %s %s :%s", | |
226 | source_p->name, name, who->name, comment); | |
227 | else | |
228 | sendto_channel_local(ALL_MEMBERS, chptr, | |
229 | ":%s!%s@%s KICK %s %s :%s", | |
230 | source_p->name, source_p->username, | |
231 | source_p->host, name, who->name, comment); | |
232 | ||
233 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
234 | ":%s KICK %s %s :%s", | |
235 | use_id(source_p), chptr->chname, use_id(who), comment); | |
212380e3 | 236 | remove_user_from_channel(msptr); |
104becbf | 237 | |
bc4764ae G |
238 | rb_sprintf(text, "K%s", who->id); |
239 | ||
d925c36c | 240 | /* we don't need to track NOREJOIN stuff unless it's our client being kicked */ |
a58b84b4 | 241 | if(MyClient(who) && chptr->mode.mode & MODE_NOREJOIN) |
bc4764ae | 242 | channel_metadata_time_add(chptr, text, rb_current_time(), "KICKNOREJOIN"); |
212380e3 | 243 | } |
244 | else if (MyClient(source_p)) | |
245 | sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL, | |
246 | form_str(ERR_USERNOTINCHANNEL), user, name); | |
247 | ||
248 | return 0; | |
249 | } |