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 (IsModelessChannel(parv[2]) || IsLocalChannel(parv[2])) {
150 send_reply(sptr, ERR_NOTONCHANNEL, parv[2]);
154 /* Do not disallow to invite to non-existant #channels, otherwise they
155 would simply first be created, causing only MORE bandwidth usage. */
157 if (check_target_limit(sptr, acptr, cli_name(acptr), 0))
160 send_reply(sptr, RPL_INVITING, cli_name(acptr), parv[2]);
162 if (cli_user(acptr)->away)
163 send_reply(sptr, RPL_AWAY, cli_name(acptr), cli_user(acptr)->away);
165 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%s", cli_name(acptr), parv[2]);
170 if (!find_channel_member(sptr, chptr)) {
171 send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
175 if (find_channel_member(acptr, chptr)) {
176 send_reply(sptr, ERR_USERONCHANNEL, cli_name(acptr), chptr->chname);
180 if (!is_chan_op(sptr, chptr)) {
181 send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
185 /* If we get here, it was a VALID and meaningful INVITE */
187 if (check_target_limit(sptr, acptr, cli_name(acptr), 0))
190 send_reply(sptr, RPL_INVITING, cli_name(acptr), chptr->chname);
192 if (cli_user(acptr)->away)
193 send_reply(sptr, RPL_AWAY, cli_name(acptr), cli_user(acptr)->away);
195 if (MyConnect(acptr))
196 add_invite(acptr, chptr);
198 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%H", cli_name(acptr), chptr);
204 * ms_invite - server message handler
206 * parv[0] - sender prefix
207 * parv[1] - user to invite
208 * parv[2] - channel name
210 * - INVITE now is accepted only if who does it is chanop (this of course
211 * implies that channel must exist and he must be on it).
213 * - On the other side it IS processed even if channel is NOT invite only
214 * leaving room for other enhancements like inviting banned ppl. -- Nemesi
216 * - Invite with no parameters now lists the channels you are invited to.
219 int ms_invite(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
221 struct Client *acptr;
222 struct Channel *chptr;
224 if (IsServer(sptr)) {
226 * this will blow up if we get an invite from a server
227 * we look for channel membership in sptr below.
229 return protocol_violation(sptr,"Server attempting to invite");
231 if (parc < 3 || EmptyString(parv[2])) {
233 * should have been handled upstream, ignore it.
235 protocol_violation(sptr,"Too few arguments to invite");
236 return need_more_params(sptr,"INVITE");
238 if ('#' != *parv[2]) {
242 return protocol_violation(sptr, "Invite to a non-standard channel %s",parv[2]);
244 if (!(acptr = FindUser(parv[1]))) {
245 send_reply(sptr, ERR_NOSUCHNICK, parv[1]);
248 if (!MyUser(acptr)) {
250 * just relay the message
252 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%s", cli_name(acptr), parv[2]);
256 if (is_silenced(sptr, acptr))
259 if (!(chptr = FindChannel(parv[2]))) {
261 * allow invites to non existant channels, bleah
262 * avoid JOIN, INVITE, PART abuse
264 sendcmdto_one(sptr, CMD_INVITE, acptr, "%C :%s", acptr, parv[2]);
268 if (!find_channel_member(sptr, chptr)) {
269 send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
272 if (find_channel_member(acptr, chptr)) {
273 send_reply(sptr, ERR_USERONCHANNEL, cli_name(acptr), chptr->chname);
276 add_invite(acptr, chptr);
277 sendcmdto_one(sptr, CMD_INVITE, acptr, "%s :%H", cli_name(acptr), chptr);