]>
jfr.im git - irc/quakenet/snircd.git/blob - ircd/m_clearmode.c
2 * IRC - Internet Relay Chat, ircd/m_clearmode.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
5 * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
7 * See file AUTHORS in IRC package for additional names of
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 1, or (at your option)
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * $Id: m_clearmode.c,v 1.31 2005/09/27 02:41:57 entrope Exp $
28 * m_functions execute protocol messages on this server:
30 * cptr is always NON-NULL, pointing to a *LOCAL* client
31 * structure (with an open socket connected!). This
32 * identifies the physical socket where the message
33 * originated (or which caused the m_function to be
34 * executed--some m_functions may call others...).
36 * sptr is the source of the message, defined by the
37 * prefix part of the message if present. If not
38 * or prefix not found, then sptr==cptr.
40 * (!IsServer(cptr)) => (cptr == sptr), because
41 * prefixes are taken *only* from servers...
44 * (sptr == cptr) => the message didn't
47 * (sptr != cptr && IsServer(sptr) means
48 * the prefix specified servername. (?)
50 * (sptr != cptr && !IsServer(sptr) means
51 * that message originated from a remote
56 * (!IsServer(sptr)) means that, sptr can safely
57 * taken as defining the target structure of the
58 * message in this server.
60 * *Always* true (if 'parse' and others are working correct):
62 * 1) sptr->from == cptr (note: cptr->from == cptr)
64 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
65 * *cannot* be a local connection, unless it's
66 * actually cptr!). [MyConnect(x) should probably
67 * be defined as (x == x->from) --msa ]
69 * parc number of variable parameter strings (if zero,
70 * parv is allowed to be NULL)
72 * parv a NULL terminated list of parameter pointers,
74 * parv[0], sender (prefix string), if not present
75 * this points to an empty string.
76 * parv[1]...parv[parc-1]
77 * pointers to additional parameters
78 * parv[parc] == NULL, *always*
80 * note: it is guaranteed that parv[0]..parv[parc-1] are all
89 #include "ircd_alloc.h"
90 #include "ircd_features.h"
92 #include "ircd_reply.h"
93 #include "ircd_string.h"
101 /* #include <assert.h> -- Now using assert in ircd_log.h */
104 * do_clearmode(struct Client *cptr, struct Client *sptr,
105 * struct Channel *chptr, char *control)
107 * This is the function that actually clears the channel modes.
110 do_clearmode(struct Client
*cptr
, struct Client
*sptr
, struct Channel
*chptr
,
113 static int flags
[] = {
119 MODE_TOPICLIMIT
, 't',
120 MODE_INVITEONLY
, 'i',
121 MODE_NOPRIVMSGS
, 'n',
127 MODE_NOQUITPARTS
, 'u',
131 MODE_NOMULTITARGET
, 'M',
135 unsigned int del_mode
= 0;
136 char control_buf
[20];
137 int control_buf_i
= 0;
139 struct Ban
*link
, *next
;
140 struct Membership
*member
;
142 /* Ok, so what are we supposed to get rid of? */
143 for (; *control
; control
++) {
144 for (flag_p
= flags
; flag_p
[0]; flag_p
+= 2)
145 if (*control
== flag_p
[1]) {
146 del_mode
|= flag_p
[0];
152 return 0; /* nothing to remove; ho hum. */
154 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
155 (MODEBUF_DEST_CHANNEL
| /* Send MODE to channel */
156 MODEBUF_DEST_OPMODE
| /* Treat it like an OPMODE */
157 MODEBUF_DEST_HACK4
)); /* Generate a HACK(4) notice */
159 modebuf_mode(&mbuf
, MODE_DEL
| (del_mode
& chptr
->mode
.mode
));
160 chptr
->mode
.mode
&= ~del_mode
; /* and of course actually delete them */
162 /* If we're removing invite, remove all the invites */
163 if (del_mode
& MODE_INVITEONLY
)
164 mode_invite_clear(chptr
);
167 * If we're removing the key, note that; note that we can't clear
168 * the key until after modebuf_* are done with it
170 if (del_mode
& MODE_KEY
&& *chptr
->mode
.key
)
171 modebuf_mode_string(&mbuf
, MODE_DEL
| MODE_KEY
, chptr
->mode
.key
, 0);
173 /* If we're removing the limit, note that and clear the limit */
174 if (del_mode
& MODE_LIMIT
&& chptr
->mode
.limit
) {
175 modebuf_mode_uint(&mbuf
, MODE_DEL
| MODE_LIMIT
, chptr
->mode
.limit
);
176 chptr
->mode
.limit
= 0; /* not referenced, so safe */
180 * Go through and mark the bans for deletion; note that we can't
181 * free them until after modebuf_* are done with them
183 if (del_mode
& MODE_BAN
) {
184 for (link
= chptr
->banlist
; link
; link
= next
) {
188 DupString(bandup
, link
->banstr
);
189 modebuf_mode_string(&mbuf
, MODE_DEL
| MODE_BAN
, /* delete ban */
197 /* Deal with users on the channel */
198 if (del_mode
& (MODE_BAN
| MODE_CHANOP
| MODE_VOICE
))
199 for (member
= chptr
->members
; member
; member
= member
->next_member
) {
200 if (IsZombie(member
)) /* we ignore zombies */
203 if (del_mode
& MODE_BAN
) /* If we cleared bans, clear the valid flags */
204 ClearBanValid(member
);
206 /* Drop channel operator status */
207 if (IsChanOp(member
) && del_mode
& MODE_CHANOP
) {
208 modebuf_mode_client(&mbuf
, MODE_DEL
| MODE_CHANOP
, member
->user
, MAXOPLEVEL
+ 1);
209 member
->status
&= ~CHFL_CHANOP
;
213 if (HasVoice(member
) && del_mode
& MODE_VOICE
) {
214 modebuf_mode_client(&mbuf
, MODE_DEL
| MODE_VOICE
, member
->user
, MAXOPLEVEL
+ 1);
215 member
->status
&= ~CHFL_VOICE
;
219 /* And flush the modes to the channel */
220 modebuf_flush(&mbuf
);
222 /* Finally, we can clear the key... */
223 if (del_mode
& MODE_KEY
)
224 chptr
->mode
.key
[0] = '\0';
226 /* Ok, build control string again */
227 for (flag_p
= flags
; flag_p
[0]; flag_p
+= 2)
228 if (del_mode
& flag_p
[0])
229 control_buf
[control_buf_i
++] = flag_p
[1];
231 control_buf
[control_buf_i
] = '\0';
234 log_write(LS_OPERMODE
, L_INFO
, LOG_NOSNOTICE
, "%#C CLEARMODE %H %s", sptr
,
238 if (!IsLocalChannel(chptr
->chname
))
239 sendcmdto_serv_butone(sptr
, CMD_CLEARMODE
, cptr
, "%H %s", chptr
,
246 * ms_clearmode - server message handler
248 * parv[0] = Send prefix
249 * parv[1] = Channel name
250 * parv[2] = Control string
253 ms_clearmode(struct Client
* cptr
, struct Client
* sptr
, int parc
, char* parv
[])
255 struct Channel
*chptr
;
258 return need_more_params(sptr
, "CLEARMODE");
260 if (!IsPrivileged(sptr
)) {
261 protocol_violation(sptr
,"No privileges on source for CLEARMODE, desync?");
262 return send_reply(sptr
, ERR_NOPRIVILEGES
);
265 if (!IsChannelName(parv
[1]) || IsLocalChannel(parv
[1]) ||
266 !(chptr
= FindChannel(parv
[1])))
267 return send_reply(sptr
, ERR_NOSUCHCHANNEL
, parv
[1]);
269 return do_clearmode(cptr
, sptr
, chptr
, parv
[2]);
273 * mo_clearmode - oper message handler
275 * parv[0] = Send prefix
276 * parv[1] = Channel name
277 * parv[2] = Control string
280 mo_clearmode(struct Client
* cptr
, struct Client
* sptr
, int parc
, char* parv
[])
282 struct Channel
*chptr
;
283 char *control
= "ovpsmikbl"; /* default control string */
284 const char *chname
, *qreason
;
287 if (!feature_bool(FEAT_CONFIG_OPERCMDS
))
288 return send_reply(sptr
, ERR_DISABLED
, "CLEARMODE");
291 return need_more_params(sptr
, "CLEARMODE");
300 if (!HasPriv(sptr
, IsLocalChannel(chname
) ?
301 PRIV_FORCE_LOCAL_OPMODE
:
303 return send_reply(sptr
, ERR_NOPRIVILEGES
);
308 IsLocalChannel(chname
) ? PRIV_LOCAL_OPMODE
: PRIV_OPMODE
))
309 return send_reply(sptr
, ERR_NOPRIVILEGES
);
311 if (('#' != *chname
&& '&' != *chname
) || !(chptr
= FindChannel(chname
)))
312 return send_reply(sptr
, ERR_NOSUCHCHANNEL
, chname
);
314 if (!force
&& (qreason
= find_quarantine(chptr
->chname
)))
315 return send_reply(sptr
, ERR_QUARANTINED
, chptr
->chname
, qreason
);
317 return do_clearmode(cptr
, sptr
, chptr
, control
);