--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_invite.c
+ * Copyright (C) 1990 Jarkko Oikarinen and
+ * University of Oulu, Computing Center
+ *
+ * See file AUTHORS in IRC package for additional names of
+ * the programmers.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 1, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ */
+
+/*
+ * m_functions execute protocol messages on this server:
+ *
+ * cptr is always NON-NULL, pointing to a *LOCAL* client
+ * structure (with an open socket connected!). This
+ * identifies the physical socket where the message
+ * originated (or which caused the m_function to be
+ * executed--some m_functions may call others...).
+ *
+ * sptr is the source of the message, defined by the
+ * prefix part of the message if present. If not
+ * or prefix not found, then sptr==cptr.
+ *
+ * (!IsServer(cptr)) => (cptr == sptr), because
+ * prefixes are taken *only* from servers...
+ *
+ * (IsServer(cptr))
+ * (sptr == cptr) => the message didn't
+ * have the prefix.
+ *
+ * (sptr != cptr && IsServer(sptr) means
+ * the prefix specified servername. (?)
+ *
+ * (sptr != cptr && !IsServer(sptr) means
+ * that message originated from a remote
+ * user (not local).
+ *
+ * combining
+ *
+ * (!IsServer(sptr)) means that, sptr can safely
+ * taken as defining the target structure of the
+ * message in this server.
+ *
+ * *Always* true (if 'parse' and others are working correct):
+ *
+ * 1) sptr->from == cptr (note: cptr->from == cptr)
+ *
+ * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
+ * *cannot* be a local connection, unless it's
+ * actually cptr!). [MyConnect(x) should probably
+ * be defined as (x == x->from) --msa ]
+ *
+ * parc number of variable parameter strings (if zero,
+ * parv is allowed to be NULL)
+ *
+ * parv a NULL terminated list of parameter pointers,
+ *
+ * parv[0], sender (prefix string), if not present
+ * this points to an empty string.
+ * parv[1]...parv[parc-1]
+ * pointers to additional parameters
+ * parv[parc] == NULL, *always*
+ *
+ * note: it is guaranteed that parv[0]..parv[parc-1] are all
+ * non-NULL pointers.
+ */
+#include "config.h"
+
+#include "channel.h"
+#include "client.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_features.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "list.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "s_user.h"
+#include "send.h"
+#include "struct.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+
+/*
+ * m_invite - generic message handler
+ *
+ * parv[0] - sender prefix
+ * parv[1] - user to invite
+ * parv[2] - channel name
+ *
+ * - INVITE now is accepted only if who does it is chanop (this of course
+ * implies that channel must exist and he must be on it).
+ *
+ * - On the other side it IS processed even if channel is NOT invite only
+ * leaving room for other enhancements like inviting banned ppl. -- Nemesi
+ *
+ * - Invite with no parameters now lists the channels you are invited to.
+ * - Isomer 23 Oct 99
+ */
+int m_invite(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct Client *acptr;
+ struct Channel *chptr;
+
+ if (parc < 2 ) {
+ /*
+ * list the channels you have an invite to.
+ */
+ struct SLink *lp;
+ for (lp = cli_user(sptr)->invited; lp; lp = lp->next)
+ send_reply(cptr, RPL_INVITELIST, lp->value.chptr->chname);
+ send_reply(cptr, RPL_ENDOFINVITELIST);
+ return 0;
+ }
+
+ if (parc < 3 || EmptyString(parv[2]))
+ return need_more_params(sptr, "INVITE");
+
+ if (!(acptr = FindUser(parv[1]))) {
+ send_reply(sptr, ERR_NOSUCHNICK, parv[1]);
+ return 0;
+ }
+
+ if (is_silenced(sptr, acptr))
+ return 0;
+
+ if (!IsChannelName(parv[2])
+ || !strIsIrcCh(parv[2])
+ || !(chptr = FindChannel(parv[2]))) {
+ send_reply(sptr, ERR_NOSUCHCHANNEL, parv[2]);
+ return 0;
+ }
+
+ if (!find_channel_member(sptr, chptr)) {
+ send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
+ return 0;
+ }
+
+ if (find_channel_member(acptr, chptr)) {
+ send_reply(sptr, ERR_USERONCHANNEL, cli_name(acptr), chptr->chname);
+ return 0;
+ }
+
+ if (!is_chan_op(sptr, chptr)) {
+ send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
+ return 0;
+ }
+
+ /* If we get here, it was a VALID and meaningful INVITE */
+
+ if (check_target_limit(sptr, acptr, cli_name(acptr), 0))
+ return 0;
+
+ send_reply(sptr, RPL_INVITING, cli_name(acptr), chptr->chname);
+
+ if (cli_user(acptr)->away)
+ send_reply(sptr, RPL_AWAY, cli_name(acptr), cli_user(acptr)->away);
+
+ if (MyConnect(acptr)) {
+ add_invite(acptr, chptr);
+ sendcmdto_one(sptr, CMD_INVITE, acptr, "%s %H", cli_name(acptr), chptr);
+ } else if (!IsLocalChannel(chptr->chname)) {
+ sendcmdto_one(sptr, CMD_INVITE, acptr, "%s %H %Tu", cli_name(acptr), chptr,
+ chptr->creationtime);
+ }
+
+ if (!IsLocalChannel(chptr->chname) || MyConnect(acptr)) {
+ if (feature_bool(FEAT_ANNOUNCE_INVITES)) {
+ /* Announce to channel operators. */
+ sendcmdto_channel_butserv_butone(&his, get_error_numeric(RPL_ISSUEDINVITE)->str,
+ NULL, chptr, sptr, SKIP_NONOPS,
+ "%H %C %C :%C has been invited by %C",
+ chptr, acptr, sptr, acptr, sptr);
+ /* Announce to servers with channel operators. */
+ sendcmdto_channel_servers_butone(sptr, NULL, TOK_INVITE, chptr, acptr, SKIP_NONOPS,
+ "%s %H %Tu", cli_name(acptr),
+ chptr, chptr->creationtime);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * ms_invite - server message handler
+ *
+ * parv[0] - sender prefix
+ * parv[1] - user to invite
+ * parv[2] - channel name
+ * parv[3] - (optional) channel timestamp
+ *
+ * - INVITE now is accepted only if who does it is chanop (this of course
+ * implies that channel must exist and he must be on it).
+ *
+ * - On the other side it IS processed even if channel is NOT invite only
+ * leaving room for other enhancements like inviting banned ppl. -- Nemesi
+ *
+ * - Invite with no parameters now lists the channels you are invited to.
+ * - Isomer 23 Oct 99
+ *
+ * - Invite with too-late timestamp, or with no timestamp from a bursting
+ * server, is silently discarded. - Entrope 19 Jan 05
+ */
+int ms_invite(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct Client *acptr;
+ struct Channel *chptr;
+ time_t invite_ts;
+
+ if (IsServer(sptr)) {
+ /*
+ * this will blow up if we get an invite from a server
+ * we look for channel membership in sptr below.
+ */
+ return protocol_violation(sptr,"Server attempting to invite");
+ }
+ if (parc < 3 || EmptyString(parv[2])) {
+ /*
+ * should have been handled upstream, ignore it.
+ */
+ protocol_violation(sptr,"Too few arguments to invite");
+ return need_more_params(sptr,"INVITE");
+ }
+ if (!IsGlobalChannel(parv[2])) {
+ /*
+ * should not be sent
+ */
+ return protocol_violation(sptr, "Invite to a non-standard channel %s",parv[2]);
+ }
+ if (!(acptr = FindUser(parv[1]))) {
+ send_reply(sptr, ERR_NOSUCHNICK, parv[1]);
+ return 0;
+ }
+
+ if (!(chptr = FindChannel(parv[2]))) {
+ /*
+ * allow invites to non existent channels, bleah
+ * avoid JOIN, INVITE, PART abuse
+ */
+ sendcmdto_one(sptr, CMD_INVITE, acptr, "%C :%s", acptr, parv[2]);
+ return 0;
+ }
+
+ if (parc > 3) {
+ invite_ts = atoi(parv[3]);
+ if (invite_ts > chptr->creationtime)
+ return 0;
+ } else if (IsBurstOrBurstAck(cptr))
+ return 0;
+
+ if (!IsChannelService(sptr) && !find_channel_member(sptr, chptr)) {
+ send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
+ return 0;
+ }
+
+ if (find_channel_member(acptr, chptr)) {
+ send_reply(sptr, ERR_USERONCHANNEL, cli_name(acptr), chptr->chname);
+ return 0;
+ }
+
+ if (is_silenced(sptr, acptr))
+ return 0;
+
+ if (MyConnect(acptr)) {
+ add_invite(acptr, chptr);
+ sendcmdto_one(sptr, CMD_INVITE, acptr, "%s %H", cli_name(acptr), chptr);
+ } else {
+ sendcmdto_one(sptr, CMD_INVITE, acptr, "%s %H %Tu", cli_name(acptr), chptr,
+ chptr->creationtime);
+ }
+
+ if (feature_bool(FEAT_ANNOUNCE_INVITES)) {
+ /* Announce to channel operators. */
+ sendcmdto_channel_butserv_butone(&his, get_error_numeric(RPL_ISSUEDINVITE)->str,
+ NULL, chptr, sptr, SKIP_NONOPS,
+ "%H %C %C :%C has been invited by %C",
+ chptr, acptr, sptr, acptr, sptr);
+ /* Announce to servers with channel operators. */
+ sendcmdto_channel_servers_butone(sptr, NULL, TOK_INVITE, chptr, acptr, SKIP_NONOPS,
+ "%s %H %Tu", cli_name(acptr), chptr,
+ chptr->creationtime);
+ }
+
+ return 0;
+}
projects / ircu2.10.12-pk.git / blobdiff