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925c50ef AC |
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 | |
925c50ef AC |
23 | */ |
24 | ||
25 | #include "stdinc.h" | |
26 | #include "channel.h" | |
27 | #include "client.h" | |
28 | #include "match.h" | |
29 | #include "ircd.h" | |
30 | #include "numeric.h" | |
31 | #include "send.h" | |
32 | #include "msg.h" | |
33 | #include "modules.h" | |
34 | #include "parse.h" | |
35 | #include "hash.h" | |
36 | #include "packet.h" | |
37 | #include "s_serv.h" | |
38 | #include "s_conf.h" | |
39 | #include "hook.h" | |
bd0d352f | 40 | #include "messages.h" |
925c50ef | 41 | |
eeabf33a | 42 | static const char description[] = "Provides the REMOVE command, an alternative to KICK"; |
925c50ef | 43 | |
3c7d6fcc | 44 | static void m_remove(struct MsgBuf *, struct Client *, struct Client *, int, const char **); |
a69c4f8c | 45 | static void remove_quote_part(hook_data_privmsg_channel *); |
925c50ef | 46 | |
eeabf33a EM |
47 | unsigned int CAP_REMOVE; |
48 | static char part_buf[REASONLEN + 1]; | |
49 | ||
925c50ef | 50 | struct Message remove_msgtab = { |
7baa37a9 | 51 | "REMOVE", 0, 0, 0, 0, |
925c50ef AC |
52 | {mg_unreg, {m_remove, 3}, {m_remove, 3}, {m_remove, 3}, mg_ignore, {m_remove, 3}} |
53 | }; | |
54 | ||
55 | mapi_clist_av1 remove_clist[] = { &remove_msgtab, NULL }; | |
a69c4f8c DF |
56 | mapi_hfn_list_av1 remove_hfnlist[] = { |
57 | { "privmsg_channel", (hookfn) remove_quote_part }, | |
58 | { NULL, NULL } | |
59 | }; | |
c168ef18 EM |
60 | mapi_cap_list_av2 remove_cap_list[] = { |
61 | { MAPI_CAP_SERVER, "REMOVE", NULL, &CAP_REMOVE }, | |
62 | { 0, NULL, NULL, NULL } | |
63 | }; | |
925c50ef | 64 | |
216d70e9 | 65 | DECLARE_MODULE_AV2(remove, NULL, NULL, remove_clist, NULL, remove_hfnlist, remove_cap_list, NULL, description); |
925c50ef | 66 | |
3c7d6fcc | 67 | static void |
760bafda | 68 | m_remove(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
925c50ef AC |
69 | { |
70 | struct membership *msptr; | |
71 | struct Client *who; | |
72 | struct Channel *chptr; | |
73 | int chasing = 0; | |
74 | char *comment; | |
75 | const char *name; | |
76 | char *p = NULL; | |
77 | const char *user; | |
78 | static char buf[BUFSIZE]; | |
79 | ||
80 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
81 | flood_endgrace(source_p); | |
82 | ||
83 | *buf = '\0'; | |
84 | if((p = strchr(parv[1], ','))) | |
85 | *p = '\0'; | |
86 | ||
87 | name = parv[1]; | |
88 | ||
89 | chptr = find_channel(name); | |
90 | if(chptr == NULL) | |
91 | { | |
92 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name); | |
3c7d6fcc | 93 | return; |
925c50ef AC |
94 | } |
95 | ||
96 | if(!IsServer(source_p)) | |
97 | { | |
98 | msptr = find_channel_membership(chptr, source_p); | |
99 | ||
100 | if((msptr == NULL) && MyConnect(source_p)) | |
101 | { | |
102 | sendto_one_numeric(source_p, ERR_NOTONCHANNEL, | |
103 | form_str(ERR_NOTONCHANNEL), name); | |
3c7d6fcc | 104 | return; |
925c50ef AC |
105 | } |
106 | ||
3ee43bcf | 107 | if(get_channel_access(source_p, chptr, msptr, MODE_ADD, NULL) < CHFL_CHANOP) |
925c50ef AC |
108 | { |
109 | if(MyConnect(source_p)) | |
110 | { | |
111 | sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), | |
112 | me.name, source_p->name, name); | |
3c7d6fcc | 113 | return; |
925c50ef AC |
114 | } |
115 | ||
116 | /* If its a TS 0 channel, do it the old way */ | |
117 | if(chptr->channelts == 0) | |
118 | { | |
119 | sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED), | |
120 | get_id(&me, source_p), get_id(source_p, source_p), name); | |
3c7d6fcc | 121 | return; |
925c50ef AC |
122 | } |
123 | } | |
124 | ||
125 | /* Its a user doing a kick, but is not showing as chanop locally | |
126 | * its also not a user ON -my- server, and the channel has a TS. | |
127 | * There are two cases we can get to this point then... | |
128 | * | |
129 | * 1) connect burst is happening, and for some reason a legit | |
55abcbb2 | 130 | * op has sent a KICK, but the SJOIN hasn't happened yet or |
925c50ef AC |
131 | * been seen. (who knows.. due to lag...) |
132 | * | |
133 | * 2) The channel is desynced. That can STILL happen with TS | |
55abcbb2 KB |
134 | * |
135 | * Now, the old code roger wrote, would allow the KICK to | |
925c50ef AC |
136 | * go through. Thats quite legit, but lets weird things like |
137 | * KICKS by users who appear not to be chanopped happen, | |
138 | * or even neater, they appear not to be on the channel. | |
139 | * This fits every definition of a desync, doesn't it? ;-) | |
140 | * So I will allow the KICK, otherwise, things are MUCH worse. | |
141 | * But I will warn it as a possible desync. | |
142 | * | |
143 | * -Dianora | |
144 | */ | |
145 | } | |
146 | ||
147 | if((p = strchr(parv[2], ','))) | |
148 | *p = '\0'; | |
149 | ||
150 | user = parv[2]; /* strtoken(&p2, parv[2], ","); */ | |
151 | ||
152 | if(!(who = find_chasing(source_p, user, &chasing))) | |
153 | { | |
3c7d6fcc | 154 | return; |
925c50ef AC |
155 | } |
156 | ||
157 | msptr = find_channel_membership(chptr, who); | |
158 | ||
159 | if(msptr != NULL) | |
160 | { | |
161 | if(MyClient(source_p) && IsService(who)) | |
162 | { | |
163 | sendto_one(source_p, form_str(ERR_ISCHANSERVICE), | |
164 | me.name, source_p->name, who->name, chptr->chname); | |
3c7d6fcc | 165 | return; |
925c50ef AC |
166 | } |
167 | ||
168 | if(MyClient(source_p)) | |
169 | { | |
170 | hook_data_channel_approval hookdata; | |
171 | ||
172 | hookdata.client = source_p; | |
173 | hookdata.chptr = chptr; | |
174 | hookdata.msptr = msptr; | |
175 | hookdata.target = who; | |
176 | hookdata.approved = 1; | |
202d4966 | 177 | hookdata.dir = MODE_ADD; /* ensure modules like override speak up */ |
925c50ef AC |
178 | |
179 | call_hook(h_can_kick, &hookdata); | |
180 | ||
181 | if (!hookdata.approved) | |
3c7d6fcc | 182 | return; |
925c50ef AC |
183 | } |
184 | ||
185 | comment = LOCAL_COPY((EmptyString(parv[3])) ? who->name : parv[3]); | |
186 | if(strlen(comment) > (size_t) REASONLEN) | |
187 | comment[REASONLEN] = '\0'; | |
188 | ||
189 | /* jdc | |
190 | * - In the case of a server kicking a user (i.e. CLEARCHAN), | |
191 | * the kick should show up as coming from the server which did | |
192 | * the kick. | |
193 | * - Personally, flame and I believe that server kicks shouldn't | |
194 | * be sent anyways. Just waiting for some oper to abuse it... | |
195 | */ | |
196 | sendto_channel_local(ALL_MEMBERS, chptr, | |
197 | ":%s!%s@%s PART %s :requested by %s (%s)", | |
deee7b43 AC |
198 | who->name, who->username, |
199 | who->host, name, source_p->name, comment); | |
925c50ef AC |
200 | |
201 | sendto_server(client_p, chptr, CAP_REMOVE, NOCAPS, | |
202 | ":%s REMOVE %s %s :%s", | |
203 | use_id(source_p), chptr->chname, use_id(who), comment); | |
204 | sendto_server(client_p, chptr, NOCAPS, CAP_REMOVE, | |
205 | ":%s KICK %s %s :%s", | |
206 | use_id(source_p), chptr->chname, use_id(who), comment); | |
207 | ||
208 | remove_user_from_channel(msptr); | |
209 | } | |
210 | else if (MyClient(source_p)) | |
211 | sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL, | |
212 | form_str(ERR_USERNOTINCHANNEL), user, name); | |
925c50ef AC |
213 | } |
214 | ||
a69c4f8c DF |
215 | static void |
216 | remove_quote_part(hook_data_privmsg_channel *data) | |
217 | { | |
a69c4f8c DF |
218 | if (data->approved || EmptyString(data->text) || data->msgtype != MESSAGE_TYPE_PART) |
219 | return; | |
220 | ||
49c12c23 AC |
221 | rb_strlcpy(part_buf, "\"", sizeof(part_buf) - 1); |
222 | rb_strlcat(part_buf, data->text, sizeof(part_buf) - 1); | |
223 | rb_strlcat(part_buf, "\"", sizeof(part_buf)); | |
a69c4f8c DF |
224 | |
225 | data->text = part_buf; | |
226 | } |