2 * IRC - Internet Relay Chat, ircd/m_invite.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
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 1, or (at your option)
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
27 * m_functions execute protocol messages on this server:
29 * cptr is always NON-NULL, pointing to a *LOCAL* client
30 * structure (with an open socket connected!). This
31 * identifies the physical socket where the message
32 * originated (or which caused the m_function to be
33 * executed--some m_functions may call others...).
35 * sptr is the source of the message, defined by the
36 * prefix part of the message if present. If not
37 * or prefix not found, then sptr==cptr.
39 * (!IsServer(cptr)) => (cptr == sptr), because
40 * prefixes are taken *only* from servers...
43 * (sptr == cptr) => the message didn't
46 * (sptr != cptr && IsServer(sptr) means
47 * the prefix specified servername. (?)
49 * (sptr != cptr && !IsServer(sptr) means
50 * that message originated from a remote
55 * (!IsServer(sptr)) means that, sptr can safely
56 * taken as defining the target structure of the
57 * message in this server.
59 * *Always* true (if 'parse' and others are working correct):
61 * 1) sptr->from == cptr (note: cptr->from == cptr)
63 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
64 * *cannot* be a local connection, unless it's
65 * actually cptr!). [MyConnect(x) should probably
66 * be defined as (x == x->from) --msa ]
68 * parc number of variable parameter strings (if zero,
69 * parv is allowed to be NULL)
71 * parv a NULL terminated list of parameter pointers,
73 * parv[0], sender (prefix string), if not present
74 * this points to an empty string.
75 * parv[1]...parv[parc-1]
76 * pointers to additional parameters
77 * parv[parc] == NULL, *always*
79 * note: it is guaranteed that parv[0]..parv[parc-1] are all
88 #include "ircd_reply.h"
89 #include "ircd_string.h"
101 * m_invite - generic message handler
103 * parv[0] - sender prefix
104 * parv[1] - user to invite
105 * parv[2] - channel name
107 * - INVITE now is accepted only if who does it is chanop (this of course
108 * implies that channel must exist and he must be on it).
110 * - On the other side it IS processed even if channel is NOT invite only
111 * leaving room for other enhancements like inviting banned ppl. -- Nemesi
113 * - Invite with no parameters now lists the channels you are invited to.
116 int m_invite(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
118 struct Client *acptr;
119 struct Channel *chptr;
123 * list the channels you have an invite to.
126 for (lp = cli_user(sptr)->invited; lp; lp = lp->next)
127 send_reply(cptr, RPL_INVITELIST, lp->value.chptr->chname);
128 send_reply(cptr, RPL_ENDOFINVITELIST);
132 if (parc < 3 || EmptyString(parv[2]))
133 return need_more_params(sptr, "INVITE");
135 if (!(acptr = FindUser(parv[1]))) {
136 send_reply(sptr, ERR_NOSUCHNICK, parv[1]);
140 if (is_silenced(sptr, acptr))
143 clean_channelname(parv[2]);
145 if (!IsChannelPrefix(*parv[2]))
148 if (!(chptr = FindChannel(parv[2]))) {
149 if (IsLocalChannel(parv[2]))
151 send_reply(sptr, ERR_NOTONCHANNEL, parv[2]);
155 /* Do not disallow to invite to non-existant #channels, otherwise they
156 would simply first be created, causing only MORE bandwidth usage. */
158 if (check_target_limit(sptr, acptr, cli_name(acptr), 0))
161 send_reply(sptr, RPL_INVITING, cli_name(acptr), parv[2]);
163 if (cli_user(acptr)->away)
164 send_reply(sptr, RPL_AWAY, cli_name(acptr), cli_user(acptr)->away);
166 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%s", cli_name(acptr), parv[2]);
171 if (!find_channel_member(sptr, chptr)) {
172 send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
176 if (find_channel_member(acptr, chptr)) {
177 send_reply(sptr, ERR_USERONCHANNEL, cli_name(acptr), chptr->chname);
181 if (!is_chan_op(sptr, chptr)) {
182 send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
186 /* If we get here, it was a VALID and meaningful INVITE */
188 if (check_target_limit(sptr, acptr, cli_name(acptr), 0))
191 send_reply(sptr, RPL_INVITING, cli_name(acptr), chptr->chname);
193 if (cli_user(acptr)->away)
194 send_reply(sptr, RPL_AWAY, cli_name(acptr), cli_user(acptr)->away);
196 if (MyConnect(acptr))
197 add_invite(acptr, chptr);
199 if (!IsLocalChannel(chptr->chname) || MyConnect(acptr))
200 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%H", cli_name(acptr), chptr);
206 * ms_invite - server message handler
208 * parv[0] - sender prefix
209 * parv[1] - user to invite
210 * parv[2] - channel name
212 * - INVITE now is accepted only if who does it is chanop (this of course
213 * implies that channel must exist and he must be on it).
215 * - On the other side it IS processed even if channel is NOT invite only
216 * leaving room for other enhancements like inviting banned ppl. -- Nemesi
218 * - Invite with no parameters now lists the channels you are invited to.
221 int ms_invite(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
223 struct Client *acptr;
224 struct Channel *chptr;
226 if (IsServer(sptr)) {
228 * this will blow up if we get an invite from a server
229 * we look for channel membership in sptr below.
231 return protocol_violation(sptr,"Server attempting to invite");
233 if (parc < 3 || EmptyString(parv[2])) {
235 * should have been handled upstream, ignore it.
237 protocol_violation(sptr,"Too few arguments to invite");
238 return need_more_params(sptr,"INVITE");
240 if ('#' != *parv[2]) {
244 return protocol_violation(sptr, "Invite to a non-standard channel %s",parv[2]);
246 if (!(acptr = FindUser(parv[1]))) {
247 send_reply(sptr, ERR_NOSUCHNICK, parv[1]);
250 if (!MyUser(acptr)) {
252 * just relay the message
254 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%s", cli_name(acptr), parv[2]);
258 if (is_silenced(sptr, acptr))
261 if (!(chptr = FindChannel(parv[2]))) {
263 * allow invites to non existant channels, bleah
264 * avoid JOIN, INVITE, PART abuse
266 sendcmdto_one(sptr, CMD_INVITE, acptr, "%C :%s", acptr, parv[2]);
270 if (!find_channel_member(sptr, chptr)) {
271 send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
274 if (find_channel_member(acptr, chptr)) {
275 send_reply(sptr, ERR_USERONCHANNEL, cli_name(acptr), chptr->chname);
278 add_invite(acptr, chptr);
279 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%H", cli_name(acptr), chptr);