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chan.c
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/*
* chan.c -- part of irc.mod
* almost everything to do with channel manipulation
* telling channel status
* 'who' response
* user kickban, kick, op, deop
* idle kicking
*/
/*
* Copyright (C) 1997 Robey Pointer
* Copyright (C) 1999 - 2024 Eggheads Development Team
*
* 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 2
* of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "irc.h"
static time_t last_ctcp = (time_t) 0L;
static int count_ctcp = 0;
static time_t last_invtime = (time_t) 0L;
static char last_invchan[CHANNELLEN + 1] = "";
static char botflag005;
static int got315(char *from, char *msg);
/* ID length for !channels.
*/
#define CHANNEL_ID_LEN 5
/* Returns a pointer to a new channel member structure.
*/
static memberlist *newmember(struct chanset_t *chan)
{
memberlist *x;
for (x = chan->channel.member; x && x->nick[0]; x = x->next);
x->next = (memberlist *) channel_malloc(sizeof(memberlist));
x->next->next = NULL;
x->next->nick[0] = 0;
x->next->split = 0L;
x->next->last = 0L;
x->next->delay = 0L;
chan->channel.members++;
return x;
}
/* Remove channel members for which no WHO reply was received */
static void sync_members(struct chanset_t *chan)
{
memberlist *m, *next, *prev;
for (m = chan->channel.member, prev = 0; m && m->nick[0]; m = next) {
next = m->next;
if (!chan_whosynced(m)) {
if (prev)
prev->next = next;
else
chan->channel.member = next;
nfree(m);
chan->channel.members--;
} else
prev = m;
}
}
/* Always pass the channel dname (display name) to this function <cybah>
*/
static void update_idle(char *chname, char *nick)
{
memberlist *m;
struct chanset_t *chan;
chan = findchan_by_dname(chname);
if (chan) {
m = ismember(chan, nick);
if (m)
m->last = now;
}
}
/* set user account on all members on all channels,
* trigger account bind if account state was not "unknown" (empty string)
*/
static void setaccount(char *nick, char *account)
{
memberlist *m;
struct chanset_t *chan;
for (chan = chanset; chan; chan = chan->next) {
if ((m = ismember(chan, nick))) {
if (rfc_casecmp(m->account, account)) {
/* account was known */
if (m->account[0]) {
if (!strcmp(account, "*")) {
putlog(LOG_MODES, chan->dname, "%s!%s has logged out of their account", nick, m->userhost);
} else {
putlog(LOG_MODES, chan->dname, "%s!%s logged in to their account %s", nick, m->userhost, account);
}
check_tcl_account(m->nick, m->userhost, get_user_from_member(m), chan->dname, account);
}
strlcpy(m->account, account, sizeof m->account);
}
}
}
/* Username for nick could be different after account change, invalidate cache */
clear_chanlist_member(nick);
}
/* Returns the current channel mode.
*/
static char *getchanmode(struct chanset_t *chan)
{
static char s[121];
int atr, i;
s[0] = '+';
i = 1;
atr = chan->channel.mode;
if (atr & CHANINV)
s[i++] = 'i';
if (atr & CHANPRIV)
s[i++] = 'p';
if (atr & CHANSEC)
s[i++] = 's';
if (atr & CHANMODER)
s[i++] = 'm';
if (atr & CHANNOCLR)
s[i++] = 'c';
if (atr & CHANNOCTCP)
s[i++] = 'C';
if (atr & CHANREGON)
s[i++] = 'R';
if (atr & CHANTOPIC)
s[i++] = 't';
if (atr & CHANMODREG)
s[i++] = 'M';
if (atr & CHANLONLY)
s[i++] = 'r';
if (atr & CHANDELJN)
s[i++] = 'D';
if (atr & CHANSTRIP)
s[i++] = 'u';
if (atr & CHANNONOTC)
s[i++] = 'N';
if (atr & CHANNOAMSG)
s[i++] = 'T';
if (atr & CHANINVIS)
s[i++] = 'd';
if (atr & CHANNOMSG)
s[i++] = 'n';
if (atr & CHANANON)
s[i++] = 'a';
if (atr & CHANKEY)
s[i++] = 'k';
if (chan->channel.maxmembers != 0)
s[i++] = 'l';
s[i] = 0;
if (chan->channel.key[0])
i += sprintf(s + i, " %s", chan->channel.key);
if (chan->channel.maxmembers != 0)
sprintf(s + i, " %d", chan->channel.maxmembers);
return s;
}
static void check_exemptlist(struct chanset_t *chan, char *from)
{
masklist *e;
int ok = 0;
if (!use_exempts)
return;
for (e = chan->channel.exempt; e->mask[0]; e = e->next)
if (match_addr(e->mask, from)) {
add_mode(chan, '-', 'e', e->mask);
ok = 1;
}
if (prevent_mixing && ok)
flush_mode(chan, QUICK);
}
/* Check a channel and clean-out any more-specific matching masks.
*
* Moved all do_ban(), do_exempt() and do_invite() into this single function
* as the code bloat is starting to get ridiculous <cybah>
*/
static void do_mask(struct chanset_t *chan, masklist *m, char *mask, char mode)
{
for (; m && m->mask[0]; m = m->next)
if (cmp_masks(mask, m->mask) && rfc_casecmp(mask, m->mask))
add_mode(chan, '-', mode, m->mask);
add_mode(chan, '+', mode, mask);
flush_mode(chan, QUICK);
}
/* This is a clone of detect_flood, but works for channel specificity now
* and handles kick & deop as well.
*
* victim for flood-deop, account for flood-join
*/
static int detect_chan_flood(char *floodnick, char *floodhost, char *from,
struct chanset_t *chan, int which, char *victim_or_account)
{
char h[NICKMAX+UHOSTLEN+1], ftype[12], *p;
struct userrec *u;
memberlist *m;
int thr = 0, lapse = 0;
struct flag_record fr = { FR_GLOBAL | FR_CHAN, 0, 0, 0, 0, 0 };
if (!chan || (which < 0) || (which >= FLOOD_CHAN_MAX))
return 0;
/* Okay, make sure i'm not flood-checking myself */
if (match_my_nick(floodnick))
return 0;
/* My user@host (?) */
if (!strcasecmp(floodhost, botuserhost))
return 0;
m = ismember(chan, floodnick);
/* Do not punish non-existent channel members and IRC services like
* ChanServ
*/
if (!m && (which != FLOOD_JOIN))
return 0;
u = lookup_user_record(m, victim_or_account, from);
get_user_flagrec(u, &fr, chan->dname);
if (glob_bot(fr) || ((which == FLOOD_DEOP) && (glob_master(fr) ||
chan_master(fr)) && (glob_friend(fr) || chan_friend(fr))) ||
((which == FLOOD_KICK) && (glob_master(fr) || chan_master(fr)) &&
(glob_friend(fr) || chan_friend(fr))) || ((which != FLOOD_DEOP) &&
(which != FLOOD_KICK) && (glob_friend(fr) || chan_friend(fr))) ||
(channel_dontkickops(chan) && (chan_op(fr) || (glob_op(fr) &&
!chan_deop(fr)))))
return 0;
/* Determine how many are necessary to make a flood. */
switch (which) {
case FLOOD_PRIVMSG:
case FLOOD_NOTICE:
thr = chan->flood_pub_thr;
lapse = chan->flood_pub_time;
strcpy(ftype, "pub");
break;
case FLOOD_CTCP:
thr = chan->flood_ctcp_thr;
lapse = chan->flood_ctcp_time;
strcpy(ftype, "ctcp");
break;
case FLOOD_NICK:
thr = chan->flood_nick_thr;
lapse = chan->flood_nick_time;
strcpy(ftype, "nick");
break;
case FLOOD_JOIN:
thr = chan->flood_join_thr;
lapse = chan->flood_join_time;
strcpy(ftype, "join");
break;
case FLOOD_DEOP:
thr = chan->flood_deop_thr;
lapse = chan->flood_deop_time;
strcpy(ftype, "deop");
break;
case FLOOD_KICK:
thr = chan->flood_kick_thr;
lapse = chan->flood_kick_time;
strcpy(ftype, "kick");
break;
}
if ((thr == 0) || (lapse == 0))
return 0; /* no flood protection */
if ((which == FLOOD_KICK) || (which == FLOOD_DEOP))
p = floodnick;
else {
p = strchr(floodhost, '@');
if (p) {
p++;
}
if (!p)
return 0;
}
if (rfc_casecmp(chan->floodwho[which], p)) { /* new */
strlcpy(chan->floodwho[which], p, sizeof chan->floodwho[which]);
chan->floodtime[which] = now;
chan->floodnum[which] = 1;
return 0;
}
if (chan->floodtime[which] < now - lapse) {
/* Flood timer expired, reset it */
chan->floodtime[which] = now;
chan->floodnum[which] = 1;
return 0;
}
/* Deop'n the same person, sillyness ;) - so just ignore it */
if (which == FLOOD_DEOP) {
if (!rfc_casecmp(chan->deopd, victim_or_account))
return 0;
else
strlcpy(chan->deopd, victim_or_account, sizeof chan->deopd);
}
chan->floodnum[which]++;
if (chan->floodnum[which] >= thr) { /* FLOOD */
/* Reset counters */
chan->floodnum[which] = 0;
chan->floodtime[which] = 0;
chan->floodwho[which][0] = 0;
if (which == FLOOD_DEOP)
chan->deopd[0] = 0;
if (check_tcl_flud(floodnick, floodhost, u, ftype, chan->dname))
return 0;
switch (which) {
case FLOOD_PRIVMSG:
case FLOOD_NOTICE:
case FLOOD_CTCP:
/* Flooding chan! either by public or notice */
if (!chan_sentkick(m) &&
(me_op(chan) || (me_halfop(chan) && !chan_hasop(m)))) {
putlog(LOG_MODES, chan->dname, IRC_FLOODKICK, floodnick);
dprintf(DP_MODE, "KICK %s %s :%s\n", chan->name, floodnick, CHAN_FLOOD);
m->flags |= SENTKICK;
}
return 1;
case FLOOD_JOIN:
case FLOOD_NICK:
if (use_exempts && (u_match_mask(global_exempts, from) ||
u_match_mask(chan->exempts, from)))
return 1;
simple_sprintf(h, "*!*@%s", p);
if (!isbanned(chan, h) && (me_op(chan) || me_halfop(chan))) {
check_exemptlist(chan, from);
do_mask(chan, chan->channel.ban, h, 'b');
}
if ((u_match_mask(global_bans, from)) ||
(u_match_mask(chan->bans, from)))
return 1; /* Already banned */
if (which == FLOOD_JOIN)
putlog(LOG_MISC | LOG_JOIN, chan->dname, IRC_FLOODIGNORE3, p);
else
putlog(LOG_MISC | LOG_JOIN, chan->dname, IRC_FLOODIGNORE4, p);
strcpy(ftype + 4, " flood");
u_addban(chan, h, botnetnick, ftype, now + (60 * chan->ban_time), 0);
if (!channel_enforcebans(chan) && (me_op(chan) || me_halfop(chan))) {
char s[NICKLEN + UHOSTLEN];
for (m = chan->channel.member; m && m->nick[0]; m = m->next) {
egg_snprintf(s, sizeof s, "%s!%s", m->nick, m->userhost);
if (wild_match(h, s) && (m->joined >= chan->floodtime[which]) &&
!chan_sentkick(m) && !match_my_nick(m->nick) && (me_op(chan) ||
(me_halfop(chan) && !chan_hasop(m)))) {
m->flags |= SENTKICK;
if (which == FLOOD_JOIN)
dprintf(DP_SERVER, "KICK %s %s :%s\n", chan->name, m->nick,
IRC_JOIN_FLOOD);
else
dprintf(DP_SERVER, "KICK %s %s :%s\n", chan->name, m->nick,
IRC_NICK_FLOOD);
}
}
}
return 1;
case FLOOD_KICK:
if ((me_op(chan) || (me_halfop(chan) && !chan_hasop(m))) &&
!chan_sentkick(m)) {
putlog(LOG_MODES, chan->dname, "Kicking %s, for mass kick.", floodnick);
dprintf(DP_MODE, "KICK %s %s :%s\n", chan->name, floodnick,
IRC_MASSKICK);
m->flags |= SENTKICK;
}
return 1;
case FLOOD_DEOP:
if ((me_op(chan) || (me_halfop(chan) && !chan_hasop(m))) &&
!chan_sentkick(m)) {
putlog(LOG_MODES, chan->dname, CHAN_MASSDEOP, chan->dname, from);
dprintf(DP_MODE, "KICK %s %s :%s\n",
chan->name, floodnick, CHAN_MASSDEOP_KICK);
m->flags |= SENTKICK;
}
return 1;
}
}
return 0;
}
/* Given a [nick!]user@host, place a quick ban on them on a chan.
*/
static char *quickban(struct chanset_t *chan, char *uhost)
{
static char s1[512];
maskaddr(uhost, s1, chan->ban_type);
do_mask(chan, chan->channel.ban, s1, 'b');
return s1;
}
/* Kick any user (except friends/masters) with certain mask from channel
* with a specified comment. Ernst 18/3/1998
*/
static void kick_all(struct chanset_t *chan, char *hostmask, char *comment,
int bantype)
{
memberlist *m;
char kicknick[512], s[NICKMAX+UHOSTLEN+1];
struct flag_record fr = { FR_GLOBAL | FR_CHAN, 0, 0, 0, 0, 0 };
int k, l, flushed;
if (!me_op(chan) && !me_halfop(chan))
return;
k = 0;
flushed = 0;
kicknick[0] = 0;
for (m = chan->channel.member; m && m->nick[0]; m = m->next) {
sprintf(s, "%s!%s", m->nick, m->userhost);
get_user_flagrec(get_user_from_member(m), &fr, chan->dname);
if ((me_op(chan) || (me_halfop(chan) && !chan_hasop(m))) &&
match_addr(hostmask, s) && !chan_sentkick(m) &&
!match_my_nick(m->nick) && !chan_issplit(m) &&
!glob_friend(fr) && !chan_friend(fr) && !(use_exempts && ((bantype &&
isexempted(chan, s)) || (u_match_mask(global_exempts, s) ||
u_match_mask(chan->exempts, s)))) && !(channel_dontkickops(chan) &&
(chan_op(fr) || (glob_op(fr) && !chan_deop(fr))))) {
if (!flushed) {
/* We need to kick someone, flush eventual bans first */
flush_mode(chan, QUICK);
flushed += 1;
}
m->flags |= SENTKICK; /* Mark as pending kick */
if (kicknick[0])
strcat(kicknick, ",");
strcat(kicknick, m->nick);
k += 1;
l = strlen(chan->name) + strlen(kicknick) + strlen(comment) + 5;
if ((kick_method != 0 && k == kick_method) || (l > 480)) {
dprintf(DP_SERVER, "KICK %s %s :%s\n", chan->name, kicknick, comment);
k = 0;
kicknick[0] = 0;
}
}
}
if (k > 0)
dprintf(DP_SERVER, "KICK %s %s :%s\n", chan->name, kicknick, comment);
}
/* If any bans match this wildcard expression, refresh them on the channel.
*/
static void refresh_ban_kick(struct chanset_t *chan, char *user, char *nick)
{
maskrec *b;
memberlist *m;
int cycle;
m = ismember(chan, nick);
if (!m || chan_sentkick(m))
return;
/* Check global bans in first cycle and channel bans in second cycle. */
for (cycle = 0; cycle < 2; cycle++) {
for (b = cycle ? chan->bans : global_bans; b; b = b->next) {
if (match_addr(b->mask, user)) {
struct flag_record fr = { FR_GLOBAL | FR_CHAN, 0, 0, 0, 0, 0 };
char c[512]; /* The ban comment. */
get_user_flagrec(get_user_from_member(m), &fr,
chan->dname);
if (!glob_friend(fr) && !chan_friend(fr)) {
add_mode(chan, '-', 'o', nick); /* Guess it can't hurt. */
check_exemptlist(chan, user);
do_mask(chan, chan->channel.ban, b->mask, 'b');
b->lastactive = now;
if (b->desc && b->desc[0] != '@')
egg_snprintf(c, sizeof c, "%s %s", IRC_PREBANNED, b->desc);
else
c[0] = 0;
kick_all(chan, b->mask, c[0] ? c : IRC_YOUREBANNED, 0);
return; /* Drop out on 1st ban. */
}
}
}
}
}
/* This is a bit cumbersome at the moment, but it works... Any improvements
* then feel free to have a go.. Jason
*/
static void refresh_exempt(struct chanset_t *chan, char *user)
{
maskrec *e;
masklist *b;
int cycle;
/* Check global exempts in first cycle and channel exempts in second cycle. */
for (cycle = 0; cycle < 2; cycle++) {
for (e = cycle ? chan->exempts : global_exempts; e; e = e->next) {
if (mask_match(user, e->mask)) {
for (b = chan->channel.ban; b && b->mask[0]; b = b->next) {
if (mask_match(b->mask, user)) {
if (e->lastactive < now - 60 && !isexempted(chan, e->mask)) {
do_mask(chan, chan->channel.exempt, e->mask, 'e');
e->lastactive = now;
}
}
}
}
}
}
}
static void refresh_invite(struct chanset_t *chan, char *user)
{
maskrec *i;
int cycle;
/* Check global invites in first cycle and channel invites in second cycle. */
for (cycle = 0; cycle < 2; cycle++) {
for (i = cycle ? chan->invites : global_invites; i; i = i->next) {
if (match_addr(i->mask, user) &&
((i->flags & MASKREC_STICKY) || (chan->channel.mode & CHANINV))) {
if (i->lastactive < now - 60 && !isinvited(chan, i->mask)) {
do_mask(chan, chan->channel.invite, i->mask, 'I');
i->lastactive = now;
return;
}
}
}
}
}
/* Enforce all channel bans in a given channel. Ernst 18/3/1998
*/
static void enforce_bans(struct chanset_t *chan)
{
char me[UHOSTLEN];
masklist *b;
if (HALFOP_CANTDOMODE('b'))
return;
simple_sprintf(me, "%s!%s", botname, botuserhost);
/* Go through all bans, kicking the users. */
for (b = chan->channel.ban; b && b->mask[0]; b = b->next) {
if (!match_addr(b->mask, me))
if (!isexempted(chan, b->mask))
kick_all(chan, b->mask, IRC_YOUREBANNED, 1);
}
}
/* Make sure that all who are 'banned' on the userlist are actually in fact
* banned on the channel.
*
* Note: Since i was getting a ban list, i assume i'm chop.
*/
static void recheck_bans(struct chanset_t *chan)
{
maskrec *u;
int cycle;
/* Check global bans in first cycle and channel bans in second cycle. */
for (cycle = 0; cycle < 2; cycle++) {
for (u = cycle ? chan->bans : global_bans; u; u = u->next)
if (!isbanned(chan, u->mask) && (!channel_dynamicbans(chan) ||
(u->flags & MASKREC_STICKY)))
add_mode(chan, '+', 'b', u->mask);
}
}
/* Make sure that all who are exempted on the userlist are actually in fact
* exempted on the channel.
*
* Note: Since i was getting an exempt list, i assume i'm chop.
*/
static void recheck_exempts(struct chanset_t *chan)
{
maskrec *e;
masklist *b;
int cycle;
/* Check global exempts in first cycle and channel exempts in second cycle. */
for (cycle = 0; cycle < 2; cycle++) {
for (e = cycle ? chan->exempts : global_exempts; e; e = e->next) {
if (!isexempted(chan, e->mask) &&
(!channel_dynamicexempts(chan) || (e->flags & MASKREC_STICKY)))
add_mode(chan, '+', 'e', e->mask);
for (b = chan->channel.ban; b && b->mask[0]; b = b->next) {
if (mask_match(b->mask, e->mask) &&
!isexempted(chan, e->mask))
add_mode(chan, '+', 'e', e->mask);
/* do_mask(chan, chan->channel.exempt, e->mask, 'e'); */
}
}
}
}
/* Make sure that all who are invited on the userlist are actually in fact
* invited on the channel.
*
* Note: Since i was getting an invite list, i assume i'm chop.
*/
static void recheck_invites(struct chanset_t *chan)
{
maskrec *ir;
int cycle;
/* Check global invites in first cycle and channel invites in second cycle. */
for (cycle = 0; cycle < 2; cycle++) {
for (ir = cycle ? chan->invites : global_invites; ir; ir = ir->next) {
/* If invite isn't set and (channel is not dynamic invites and not invite
* only) or invite is sticky.
*/
if (!isinvited(chan, ir->mask) && ((!channel_dynamicinvites(chan) &&
!(chan->channel.mode & CHANINV)) || ir->flags & MASKREC_STICKY))
add_mode(chan, '+', 'I', ir->mask);
/* do_mask(chan, chan->channel.invite, ir->mask, 'I'); */
}
}
}
/* Resets the masks on the channel.
*/
static void resetmasks(struct chanset_t *chan, masklist *m, maskrec *mrec,
maskrec *global_masks, char mode)
{
if (!me_op(chan) && (!me_halfop(chan) ||
(strchr(NOHALFOPS_MODES, 'b') != NULL) ||
(strchr(NOHALFOPS_MODES, 'e') != NULL) ||
(strchr(NOHALFOPS_MODES, 'I') != NULL)))
return;
/* Remove masks we didn't put there */
for (; m && m->mask[0]; m = m->next) {
if (!u_equals_mask(global_masks, m->mask) && !u_equals_mask(mrec, m->mask))
add_mode(chan, '-', mode, m->mask);
}
/* Make sure the intended masks are still there */
switch (mode) {
case 'b':
recheck_bans(chan);
break;
case 'e':
recheck_exempts(chan);
break;
case 'I':
recheck_invites(chan);
break;
default:
putlog(LOG_MISC, "*", "(!) Invalid mode '%c' in resetmasks()", mode);
break;
}
}
static void check_this_ban(struct chanset_t *chan, char *banmask, int sticky)
{
memberlist *m;
char user[NICKMAX+UHOSTLEN+1];
if (HALFOP_CANTDOMODE('b'))
return;
for (m = chan->channel.member; m && m->nick[0]; m = m->next) {
sprintf(user, "%s!%s", m->nick, m->userhost);
if (match_addr(banmask, user) &&
!(use_exempts &&
(u_match_mask(global_exempts, user) ||
u_match_mask(chan->exempts, user))))
refresh_ban_kick(chan, user, m->nick);
}
if (!isbanned(chan, banmask) && (!channel_dynamicbans(chan) || sticky))
add_mode(chan, '+', 'b', banmask);
}
static void recheck_channel_modes(struct chanset_t *chan)
{
int cur = chan->channel.mode, mns = chan->mode_mns_prot,
pls = chan->mode_pls_prot;
if (!(chan->status & CHAN_ASKEDMODES)) {
if (pls & CHANINV && !(cur & CHANINV))
add_mode(chan, '+', 'i', "");
else if (mns & CHANINV && cur & CHANINV)
add_mode(chan, '-', 'i', "");
if (pls & CHANPRIV && !(cur & CHANPRIV))
add_mode(chan, '+', 'p', "");
else if (mns & CHANPRIV && cur & CHANPRIV)
add_mode(chan, '-', 'p', "");
if (pls & CHANSEC && !(cur & CHANSEC))
add_mode(chan, '+', 's', "");
else if (mns & CHANSEC && cur & CHANSEC)
add_mode(chan, '-', 's', "");
if (pls & CHANMODER && !(cur & CHANMODER))
add_mode(chan, '+', 'm', "");
else if (mns & CHANMODER && cur & CHANMODER)
add_mode(chan, '-', 'm', "");
if (pls & CHANNOCLR && !(cur & CHANNOCLR))
add_mode(chan, '+', 'c', "");
else if (mns & CHANNOCLR && cur & CHANNOCLR)
add_mode(chan, '-', 'c', "");
if (pls & CHANNOCTCP && !(cur & CHANNOCTCP))
add_mode(chan, '+', 'C', "");
else if (mns & CHANNOCTCP && cur & CHANNOCTCP)
add_mode(chan, '-', 'C', "");
if (pls & CHANREGON && !(cur & CHANREGON))
add_mode(chan, '+', 'R', "");
else if (mns & CHANREGON && cur & CHANREGON)
add_mode(chan, '-', 'R', "");
if (pls & CHANMODREG && !(cur & CHANMODREG))
add_mode(chan, '+', 'M', "");
else if (mns & CHANMODREG && cur & CHANMODREG)
add_mode(chan, '-', 'M', "");
if (pls & CHANLONLY && !(cur & CHANLONLY))
add_mode(chan, '+', 'r', "");
else if (mns & CHANLONLY && cur & CHANLONLY)
add_mode(chan, '-', 'r', "");
if (pls & CHANDELJN && !(cur & CHANDELJN))
add_mode(chan, '+', 'D', "");
else if (mns & CHANDELJN && cur & CHANDELJN)
add_mode(chan, '-', 'D', "");
if (pls & CHANSTRIP && !(cur & CHANSTRIP))
add_mode(chan, '+', 'u', "");
else if (mns & CHANSTRIP && cur & CHANSTRIP)
add_mode(chan, '-', 'u', "");
if (pls & CHANNONOTC && !(cur & CHANNONOTC))
add_mode(chan, '+', 'N', "");
else if (mns & CHANNONOTC && cur & CHANNONOTC)
add_mode(chan, '-', 'N', "");
if (pls & CHANNOAMSG && !(cur & CHANNOAMSG))
add_mode(chan, '+', 'T', "");
else if (mns & CHANNOAMSG && cur & CHANNOAMSG)
add_mode(chan, '-', 'T', "");
if (pls & CHANTOPIC && !(cur & CHANTOPIC))
add_mode(chan, '+', 't', "");
else if (mns & CHANTOPIC && cur & CHANTOPIC)
add_mode(chan, '-', 't', "");
if (pls & CHANNOMSG && !(cur & CHANNOMSG))
add_mode(chan, '+', 'n', "");
else if ((mns & CHANNOMSG) && (cur & CHANNOMSG))
add_mode(chan, '-', 'n', "");
if ((pls & CHANANON) && !(cur & CHANANON))
add_mode(chan, '+', 'a', "");
else if ((mns & CHANANON) && (cur & CHANANON))
add_mode(chan, '-', 'a', "");
if ((pls & CHANQUIET) && !(cur & CHANQUIET))
add_mode(chan, '+', 'q', "");
else if ((mns & CHANQUIET) && (cur & CHANQUIET))
add_mode(chan, '-', 'q', "");
if ((chan->limit_prot != 0) && (chan->channel.maxmembers == 0)) {
char s[21];
sprintf(s, "%d", chan->limit_prot);
add_mode(chan, '+', 'l', s);
} else if ((mns & CHANLIMIT) && (chan->channel.maxmembers != 0))
add_mode(chan, '-', 'l', "");
if (chan->key_prot[0]) {
if (rfc_casecmp(chan->channel.key, chan->key_prot) != 0) {
if (chan->channel.key[0])
add_mode(chan, '-', 'k', chan->channel.key);
add_mode(chan, '+', 'k', chan->key_prot);
}
} else if ((mns & CHANKEY) && (chan->channel.key[0]))
add_mode(chan, '-', 'k', chan->channel.key);
}
}
static void check_this_member(struct chanset_t *chan, char *nick,
struct flag_record *fr)
{
memberlist *m;
char s[NICKMAX+UHOSTLEN+1], *p;
m = ismember(chan, nick);
if (!m || match_my_nick(nick) || (!me_op(chan) && !me_halfop(chan)))
return;
#ifdef NO_HALFOP_CHANMODES
if (me_op(chan)) {
#else
if (me_op(chan) || me_halfop(chan)) {
#endif
if (HALFOP_CANDOMODE('o')) {
if (chan_hasop(m) && ((chan_deop(*fr) || (glob_deop(*fr) &&
!chan_op(*fr))) || (channel_bitch(chan) && (!chan_op(*fr) &&
!(glob_op(*fr) && !chan_deop(*fr))))) && !chan_stopcheck(m)) {
add_mode(chan, '-', 'o', m->nick);
}
if (!chan_hasop(m) && (chan_op(*fr) || (glob_op(*fr) &&
!chan_deop(*fr))) && (channel_autoop(chan) || glob_autoop(*fr) ||
chan_autoop(*fr))) {
if (!chan->aop_min) {
if (!chan_stopcheck(m))
add_mode(chan, '+', 'o', m->nick);
}
else {
set_delay(chan, m->nick);
m->flags |= SENTOP;
}
}
}
if (HALFOP_CANDOMODE('h')) {
if (chan_hashalfop(m) && ((chan_dehalfop(*fr) || (glob_dehalfop(*fr) &&
!chan_halfop(*fr)) || (channel_bitch(chan) && (!chan_halfop(*fr) &&
!(glob_halfop(*fr) && !chan_dehalfop(*fr)))))) && !chan_stopcheck(m))
add_mode(chan, '-', 'h', m->nick);
if (!chan_sentop(m) && !chan_hasop(m) && !chan_hashalfop(m) &&
(chan_halfop(*fr) || (glob_halfop(*fr) && !chan_dehalfop(*fr))) &&
(channel_autohalfop(chan) || glob_autohalfop(*fr) ||
chan_autohalfop(*fr))) {
if (!chan->aop_min) {
if (!chan_stopcheck(m))
add_mode(chan, '+', 'h', m->nick);
}
else {
set_delay(chan, m->nick);
m->flags |= SENTHALFOP;
}
}
}
if (HALFOP_CANDOMODE('v')) {
if (chan_hasvoice(m) && (chan_quiet(*fr) || (glob_quiet(*fr) &&
!chan_voice(*fr))) && !chan_stopcheck(m))
add_mode(chan, '-', 'v', m->nick);
if (!chan_hasvoice(m) && !chan_hasop(m) && !chan_hashalfop(m) &&
(chan_voice(*fr) || (glob_voice(*fr) && !chan_quiet(*fr))) &&
(channel_autovoice(chan) || glob_gvoice(*fr) || chan_gvoice(*fr))) {
if (!chan->aop_min) {
if (!chan_stopcheck(m))
add_mode(chan, '+', 'v', m->nick);
}
else {
set_delay(chan, m->nick);
m->flags |= SENTVOICE;
}
}
}
}
if (!chan_stopcheck(m)) {
if (!me_op(chan) && (!me_halfop(chan) ||
(strchr(NOHALFOPS_MODES, 'b') != NULL) ||
(strchr(NOHALFOPS_MODES, 'e') != NULL) ||
(strchr(NOHALFOPS_MODES, 'I') != NULL)))
return;
sprintf(s, "%s!%s", m->nick, m->userhost);
if (use_invites && (u_match_mask(global_invites, s) ||
u_match_mask(chan->invites, s)))
refresh_invite(chan, s);
if (!(use_exempts && (u_match_mask(global_exempts, s) ||
u_match_mask(chan->exempts, s)))) {
if (u_match_mask(global_bans, s) || u_match_mask(chan->bans, s))
refresh_ban_kick(chan, s, m->nick);
if (!chan_sentkick(m) && (chan_kick(*fr) || glob_kick(*fr)) &&
(me_op(chan) || (me_halfop(chan) && !chan_hasop(m)))) {
check_exemptlist(chan, s);
quickban(chan, m->userhost);
p = get_user(&USERENTRY_COMMENT, get_user_from_member(m));
dprintf(DP_SERVER, "KICK %s %s :%s\n", chan->name, m->nick,
p ? p : IRC_POLITEKICK);
m->flags |= SENTKICK;
}
}
}
}
static void check_this_user(char *hand, int delete, char *host)
{
char s[NICKMAX+UHOSTLEN+1];
memberlist *m;
struct userrec *u;
struct chanset_t *chan;
struct flag_record fr = { FR_GLOBAL | FR_CHAN, 0, 0, 0, 0, 0 };
for (chan = chanset; chan; chan = chan->next)
for (m = chan->channel.member; m && m->nick[0]; m = m->next) {
u = get_user_from_member(m);
if ((u && !strcasecmp(u->handle, hand) && delete < 2) ||
(!u && delete == 2 && match_addr(host, s))) {
u = delete ? NULL : u;
get_user_flagrec(u, &fr, chan->dname);
check_this_member(chan, m->nick, &fr);
}
}
}
/* Things to do when i just became a chanop:
*/
static void recheck_channel(struct chanset_t *chan, int dobans)
{
memberlist *m;
struct flag_record fr = { FR_GLOBAL | FR_CHAN, 0, 0, 0, 0, 0 };
struct userrec *u;
static int stacking = 0;
int stop_reset = 0;
if (stacking || !userlist)
return;
stacking++;
/* Okay, sort through who needs to be deopped. */
for (m = chan->channel.member; m && m->nick[0]; m = m->next) {
u = get_user_from_member(m);
get_user_flagrec(u, &fr, chan->dname);
if (glob_bot(fr) && chan_hasop(m) && !match_my_nick(m->nick))
stop_reset = 1;
/* Perhaps we were halfop and tried to halfop/kick the user earlier but
* the server rejected the request, so let's try again. */
m->flags &= ~(SENTHALFOP | SENTKICK);
check_this_member(chan, m->nick, &fr);
}
/* Most IRCDs nowadays require +h/+o for getting e/I lists,
* so if we're still waiting for these, we'll request them here.
* In case we got them on join, nothing will be done */
if (chan->ircnet_status & (CHAN_ASKED_EXEMPTS | CHAN_ASKED_INVITED)) {
chan->ircnet_status &= ~(CHAN_ASKED_EXEMPTS | CHAN_ASKED_INVITED);
reset_chan_info(chan, CHAN_RESETEXEMPTS | CHAN_RESETINVITED, 1);
}
if (dobans) {
if (channel_nouserbans(chan) && !stop_reset)
resetbans(chan);
else
recheck_bans(chan);
if (use_invites) {
if (channel_nouserinvites(chan) && !stop_reset)
resetinvites(chan);
else
recheck_invites(chan);
}
if (use_exempts) {
if (channel_nouserexempts(chan) && !stop_reset)
resetexempts(chan);
else
recheck_exempts(chan);
}
if (channel_enforcebans(chan))
enforce_bans(chan);
if ((chan->status & CHAN_ASKEDMODES) && !channel_inactive(chan))
dprintf(DP_MODE, "MODE %s\n", chan->name);
recheck_channel_modes(chan);
}
stacking--;
}
/* got 324: mode status
* <server> 324 <to> <channel> <mode>
*/
static int got324(char *from, char *msg)
{
int i = 1, ok = 0;
char *p, *q, *chname;
struct chanset_t *chan;
newsplit(&msg);
chname = newsplit(&msg);
chan = findchan(chname);
if (!chan) {
putlog(LOG_MISC, "*", "%s: %s", IRC_UNEXPECTEDMODE, chname);
dprintf(DP_SERVER, "PART %s\n", chname);
return 0;
}
if (chan->status & CHAN_ASKEDMODES)
ok = 1;
chan->status &= ~CHAN_ASKEDMODES;
chan->channel.mode = 0;
while (msg[i] != 0) {
if (msg[i] == 'i')
chan->channel.mode |= CHANINV;
if (msg[i] == 'p')
chan->channel.mode |= CHANPRIV;
if (msg[i] == 's')
chan->channel.mode |= CHANSEC;
if (msg[i] == 'm')
chan->channel.mode |= CHANMODER;
if (msg[i] == 'c')
chan->channel.mode |= CHANNOCLR;
if (msg[i] == 'C')
chan->channel.mode |= CHANNOCTCP;
if (msg[i] == 'R')
chan->channel.mode |= CHANREGON;
if (msg[i] == 'M')
chan->channel.mode |= CHANMODREG;
if (msg[i] == 'r')
chan->channel.mode |= CHANLONLY;
if (msg[i] == 'D')