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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 | * | |
24 | * $Id: m_kick.c 3317 2007-03-28 23:17:06Z jilles $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "channel.h" | |
29 | #include "client.h" | |
30 | #include "match.h" | |
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" | |
40 | #include "s_conf.h" | |
41 | #include "hook.h" | |
42 | ||
43 | unsigned int CAP_REMOVE; | |
44 | ||
45 | static int m_remove(struct Client *, struct Client *, int, const char **); | |
46 | ||
47 | struct Message remove_msgtab = { | |
48 | "REMOVE", 0, 0, 0, MFLG_SLOW, | |
49 | {mg_unreg, {m_remove, 3}, {m_remove, 3}, {m_remove, 3}, mg_ignore, {m_remove, 3}} | |
50 | }; | |
51 | ||
52 | mapi_clist_av1 remove_clist[] = { &remove_msgtab, NULL }; | |
53 | ||
54 | static int | |
55 | modinit(void) | |
56 | { | |
57 | CAP_REMOVE = capability_put(serv_capindex, "REMOVE"); | |
58 | capability_require(serv_capindex, "REMOVE"); | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | static void | |
64 | moddeinit(void) | |
65 | { | |
66 | capability_orphan(serv_capindex, "REMOVE"); | |
67 | } | |
68 | ||
69 | DECLARE_MODULE_AV1(remove, modinit, moddeinit, remove_clist, NULL, NULL, "$Revision: 3317 $"); | |
70 | ||
71 | static int | |
72 | m_remove(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
73 | { | |
74 | struct membership *msptr; | |
75 | struct Client *who; | |
76 | struct Channel *chptr; | |
77 | int chasing = 0; | |
78 | char *comment; | |
79 | const char *name; | |
80 | char *p = NULL; | |
81 | const char *user; | |
82 | static char buf[BUFSIZE]; | |
83 | ||
84 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
85 | flood_endgrace(source_p); | |
86 | ||
87 | *buf = '\0'; | |
88 | if((p = strchr(parv[1], ','))) | |
89 | *p = '\0'; | |
90 | ||
91 | name = parv[1]; | |
92 | ||
93 | chptr = find_channel(name); | |
94 | if(chptr == NULL) | |
95 | { | |
96 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name); | |
97 | return 0; | |
98 | } | |
99 | ||
100 | if(!IsServer(source_p)) | |
101 | { | |
102 | msptr = find_channel_membership(chptr, source_p); | |
103 | ||
104 | if((msptr == NULL) && MyConnect(source_p)) | |
105 | { | |
106 | sendto_one_numeric(source_p, ERR_NOTONCHANNEL, | |
107 | form_str(ERR_NOTONCHANNEL), name); | |
108 | return 0; | |
109 | } | |
110 | ||
111 | if(get_channel_access(source_p, msptr) < CHFL_CHANOP) | |
112 | { | |
113 | if(MyConnect(source_p)) | |
114 | { | |
115 | sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), | |
116 | me.name, source_p->name, name); | |
117 | return 0; | |
118 | } | |
119 | ||
120 | /* If its a TS 0 channel, do it the old way */ | |
121 | if(chptr->channelts == 0) | |
122 | { | |
123 | sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), | |
124 | get_id(&me, source_p), get_id(source_p, source_p), name); | |
125 | return 0; | |
126 | } | |
127 | } | |
128 | ||
129 | /* Its a user doing a kick, but is not showing as chanop locally | |
130 | * its also not a user ON -my- server, and the channel has a TS. | |
131 | * There are two cases we can get to this point then... | |
132 | * | |
133 | * 1) connect burst is happening, and for some reason a legit | |
134 | * op has sent a KICK, but the SJOIN hasn't happened yet or | |
135 | * been seen. (who knows.. due to lag...) | |
136 | * | |
137 | * 2) The channel is desynced. That can STILL happen with TS | |
138 | * | |
139 | * Now, the old code roger wrote, would allow the KICK to | |
140 | * go through. Thats quite legit, but lets weird things like | |
141 | * KICKS by users who appear not to be chanopped happen, | |
142 | * or even neater, they appear not to be on the channel. | |
143 | * This fits every definition of a desync, doesn't it? ;-) | |
144 | * So I will allow the KICK, otherwise, things are MUCH worse. | |
145 | * But I will warn it as a possible desync. | |
146 | * | |
147 | * -Dianora | |
148 | */ | |
149 | } | |
150 | ||
151 | if((p = strchr(parv[2], ','))) | |
152 | *p = '\0'; | |
153 | ||
154 | user = parv[2]; /* strtoken(&p2, parv[2], ","); */ | |
155 | ||
156 | if(!(who = find_chasing(source_p, user, &chasing))) | |
157 | { | |
158 | return 0; | |
159 | } | |
160 | ||
161 | msptr = find_channel_membership(chptr, who); | |
162 | ||
163 | if(msptr != NULL) | |
164 | { | |
165 | if(MyClient(source_p) && IsService(who)) | |
166 | { | |
167 | sendto_one(source_p, form_str(ERR_ISCHANSERVICE), | |
168 | me.name, source_p->name, who->name, chptr->chname); | |
169 | return 0; | |
170 | } | |
171 | ||
172 | if(MyClient(source_p)) | |
173 | { | |
174 | hook_data_channel_approval hookdata; | |
175 | ||
176 | hookdata.client = source_p; | |
177 | hookdata.chptr = chptr; | |
178 | hookdata.msptr = msptr; | |
179 | hookdata.target = who; | |
180 | hookdata.approved = 1; | |
181 | ||
182 | call_hook(h_can_kick, &hookdata); | |
183 | ||
184 | if (!hookdata.approved) | |
185 | return 0; | |
186 | } | |
187 | ||
188 | comment = LOCAL_COPY((EmptyString(parv[3])) ? who->name : parv[3]); | |
189 | if(strlen(comment) > (size_t) REASONLEN) | |
190 | comment[REASONLEN] = '\0'; | |
191 | ||
192 | /* jdc | |
193 | * - In the case of a server kicking a user (i.e. CLEARCHAN), | |
194 | * the kick should show up as coming from the server which did | |
195 | * the kick. | |
196 | * - Personally, flame and I believe that server kicks shouldn't | |
197 | * be sent anyways. Just waiting for some oper to abuse it... | |
198 | */ | |
199 | sendto_channel_local(ALL_MEMBERS, chptr, | |
200 | ":%s!%s@%s PART %s :requested by %s (%s)", | |
deee7b43 AC |
201 | who->name, who->username, |
202 | who->host, name, source_p->name, comment); | |
925c50ef AC |
203 | |
204 | sendto_server(client_p, chptr, CAP_REMOVE, NOCAPS, | |
205 | ":%s REMOVE %s %s :%s", | |
206 | use_id(source_p), chptr->chname, use_id(who), comment); | |
207 | sendto_server(client_p, chptr, NOCAPS, CAP_REMOVE, | |
208 | ":%s KICK %s %s :%s", | |
209 | use_id(source_p), chptr->chname, use_id(who), comment); | |
210 | ||
211 | remove_user_from_channel(msptr); | |
212 | } | |
213 | else if (MyClient(source_p)) | |
214 | sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL, | |
215 | form_str(ERR_USERNOTINCHANNEL), user, name); | |
216 | ||
217 | return 0; | |
218 | } | |
219 |