--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_kick.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_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "send.h"
+#include "ircd_features.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+
+/*
+ * m_kick - generic message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = channel
+ * parv[2] = client to kick
+ * parv[parc-1] = kick comment
+ */
+int m_kick(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
+{
+ struct Client *who;
+ struct Channel *chptr;
+ struct Membership *member = 0;
+ struct Membership* member2;
+ char *name, *comment;
+
+ ClrFlag(sptr, FLAG_TS8);
+
+ if (parc < 3 || *parv[1] == '\0')
+ return need_more_params(sptr, "KICK");
+
+ name = parv[1];
+
+ /* simple checks */
+ if (!(chptr = get_channel(sptr, name, CGT_NO_CREATE)))
+ return send_reply(sptr, ERR_NOSUCHCHANNEL, name);
+
+ if (!(member2 = find_member_link(chptr, sptr)) || IsZombie(member2)
+ || !IsChanOp(member2))
+ return send_reply(sptr, ERR_CHANOPRIVSNEEDED, name);
+
+ if (!(who = find_chasing(sptr, parv[2], 0)))
+ return 0; /* find_chasing sends the reply for us */
+
+ /* Don't allow the channel service to be kicked */
+ if (IsChannelService(who))
+ return send_reply(sptr, ERR_ISCHANSERVICE, cli_name(who), chptr->chname);
+
+ /* Prevent kicking opers from local channels -DM- */
+ if (IsLocalChannel(chptr->chname) && HasPriv(who, PRIV_DEOP_LCHAN))
+ return send_reply(sptr, ERR_ISOPERLCHAN, cli_name(who), chptr->chname);
+
+ /* check if kicked user is actually on the channel */
+ if (!(member = find_member_link(chptr, who)) || IsZombie(member))
+ return send_reply(sptr, ERR_USERNOTINCHANNEL, cli_name(who), chptr->chname);
+
+ /* Don't allow to kick member with a higher op-level,
+ * or members with the same op-level unless both are MAXOPLEVEL.
+ */
+ if (OpLevel(member) < OpLevel(member2)
+ || (OpLevel(member) == OpLevel(member2)
+ && OpLevel(member) < MAXOPLEVEL))
+ return send_reply(sptr, ERR_NOTLOWEROPLEVEL, cli_name(who), chptr->chname,
+ OpLevel(member2), OpLevel(member), "kick",
+ OpLevel(member) == OpLevel(member2) ? "the same" : "a higher");
+
+ /* We rely on ircd_snprintf to truncate the comment */
+ comment = EmptyString(parv[parc - 1]) ? parv[0] : parv[parc - 1];
+
+ if (!IsLocalChannel(name))
+ sendcmdto_serv_butone(sptr, CMD_KICK, cptr, "%H %C :%s", chptr, who,
+ comment);
+
+ if (IsDelayedJoin(member)) {
+ /* If it's a delayed join, only send the KICK to the person doing
+ * the kicking and the victim */
+ if (MyUser(who))
+ sendcmdto_one(sptr, CMD_KICK, who, "%H %C :%s", chptr, who, comment);
+ sendcmdto_one(who, CMD_JOIN, sptr, "%H", chptr);
+ sendcmdto_one(sptr, CMD_KICK, sptr, "%H %C :%s", chptr, who, comment);
+ CheckDelayedJoins(chptr);
+ } else
+ sendcmdto_channel_butserv_butone(sptr, CMD_KICK, chptr, NULL, 0, "%H %C :%s", chptr, who,
+ comment);
+
+ make_zombie(member, who, cptr, sptr, chptr);
+
+ return 0;
+}
+
+/*
+ * ms_kick - server message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = channel
+ * parv[2] = client to kick
+ * parv[parc-1] = kick comment
+ */
+int ms_kick(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
+{
+ struct Client *who;
+ struct Channel *chptr;
+ struct Membership *member = 0, *sptr_link = 0;
+ char *name, *comment;
+
+ ClrFlag(sptr, FLAG_TS8);
+
+ if (parc < 3 || *parv[1] == '\0')
+ return need_more_params(sptr, "KICK");
+
+ name = parv[1];
+ comment = parv[parc - 1];
+
+ /* figure out who gets kicked from what */
+ if (IsLocalChannel(name) ||
+ !(chptr = get_channel(sptr, name, CGT_NO_CREATE)) ||
+ !(who = findNUser(parv[2])))
+ return 0;
+
+ /* We go ahead and pass on the KICK for users not on the channel */
+ member = find_member_link(chptr, who);
+ if (member && IsZombie(member))
+ {
+ /* We might get a KICK from a zombie's own server because the user
+ * net-rode during a burst (which always generates a KICK) *and*
+ * was kicked via another server. In that case, we must remove
+ * the user from the channel.
+ */
+ if (sptr == cli_user(who)->server)
+ {
+ remove_user_from_channel(who, chptr);
+ }
+ /* Otherwise, we treat zombies like they are not channel members. */
+ member = 0;
+ }
+
+ /* Send HACK notice, but not for servers in BURST */
+ /* 2002-10-17: Don't send HACK if the users local server is kicking them */
+ if (IsServer(sptr) &&
+ !IsBurstOrBurstAck(sptr) &&
+ sptr!=cli_user(who)->server)
+ sendto_opmask_butone(0, SNO_HACK4, "HACK: %C KICK %H %C %s", sptr, chptr,
+ who, comment);
+
+ /* Unless someone accepted it downstream (or the user isn't on the channel
+ * here), if kicker is not on channel, or if kicker is not a channel
+ * operator, bounce the kick
+ */
+ if (!IsServer(sptr) && member && cli_from(who) != cptr &&
+ (!(sptr_link = find_member_link(chptr, sptr)) || !IsChanOp(sptr_link))) {
+ sendto_opmask_butone(0, SNO_HACK2, "HACK: %C KICK %H %C %s", sptr, chptr,
+ who, comment);
+
+ sendcmdto_one(who, CMD_JOIN, cptr, "%H", chptr);
+
+ /* Reop/revoice member */
+ if (IsChanOp(member) || HasVoice(member)) {
+ struct ModeBuf mbuf;
+
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_SERVER | /* Send mode to a server */
+ MODEBUF_DEST_DEOP | /* Deop the source */
+ MODEBUF_DEST_BOUNCE)); /* And bounce the MODE */
+
+ if (IsChanOp(member))
+ modebuf_mode_client(&mbuf, MODE_DEL | MODE_CHANOP, who, OpLevel(member));
+ if (HasVoice(member))
+ modebuf_mode_client(&mbuf, MODE_DEL | MODE_VOICE, who, MAXOPLEVEL + 1);
+
+ modebuf_flush(&mbuf);
+ }
+ } else {
+ /* Propagate kick... */
+ sendcmdto_serv_butone(sptr, CMD_KICK, cptr, "%H %C :%s", chptr, who,
+ comment);
+
+ if (member) { /* and tell the channel about it */
+ if (IsDelayedJoin(member)) {
+ if (MyUser(who))
+ sendcmdto_one(IsServer(sptr) ? &his : sptr, CMD_KICK,
+ who, "%H %C :%s", chptr, who, comment);
+ } else {
+ sendcmdto_channel_butserv_butone(IsServer(sptr) ? &his : sptr, CMD_KICK,
+ chptr, NULL, 0, "%H %C :%s", chptr, who,
+ comment);
+ }
+
+ make_zombie(member, who, cptr, sptr, chptr);
+ }
+ }
+
+ return 0;
+}
projects / ircu2.10.12-pk.git / blobdiff