static void cs_cmd_unban(sourceinfo_t *si, int parc, char *parv[])
{
const char *channel = parv[0];
const char *target = parv[1];
channel_t *c = channel_find(channel);
mychan_t *mc = mychan_find(channel);
user_t *tu;
chanban_t *cb;
if (si->su == NULL)
{
command_fail(si, fault_noprivs, _("\2%s\2 can only be executed via IRC."), "UNBAN");
return;
}
if (!channel)
{
command_fail(si, fault_needmoreparams, STR_INSUFFICIENT_PARAMS, "UNBAN");
command_fail(si, fault_needmoreparams, _("Syntax: UNBAN <#channel>"));
return;
}
if (target && irccasecmp(target, si->su->nick))
{
command_fail(si, fault_noprivs, _("You may only unban yourself via %s."), si->service->nick);
if (validhostmask(target))
command_fail(si, fault_noprivs, _("Try \2/mode %s -b %s\2"), channel, target);
return;
}
target = si->su->nick;
if (!mc)
{
command_fail(si, fault_nosuch_target, _("Channel \2%s\2 is not registered."), channel);
return;
}
if (!c)
{
command_fail(si, fault_nosuch_target, _("\2%s\2 is currently empty."), channel);
return;
}
if (!si->smu)
{
command_fail(si, fault_noprivs, _("You are not logged in."));
return;
}
if (!chanacs_source_has_flag(mc, si, CA_REMOVE))
{
command_fail(si, fault_noprivs, _("You are not authorized to perform this operation."));
return;
}
tu = si->su;
{
mowgli_node_t *n, *tn;
char hostbuf2[BUFSIZE];
int count = 0;
snprintf(hostbuf2, BUFSIZE, "%s!%s@%s", tu->nick, tu->user, tu->vhost);
for (n = next_matching_ban(c, tu, 'b', c->bans.head); n != NULL; n = next_matching_ban(c, tu, 'b', tn))
{
tn = n->next;
cb = n->data;
logcommand(si, CMDLOG_DO, "UNBAN: \2%s\2 \2%s\2 (for user \2%s\2)", mc->name, cb->mask, hostbuf2);
modestack_mode_param(chansvs.nick, c, MTYPE_DEL, cb->type, cb->mask);
chanban_delete(cb);
count++;
}
if (count > 0)
command_success_nodata(si, _("Unbanned \2%s\2 on \2%s\2 (%d ban%s removed)."),
target, channel, count, (count != 1 ? "s" : ""));
else
command_success_nodata(si, _("No bans found matching \2%s\2 on \2%s\2."), target, channel);
return;
}
}
static void
cs_cmd_unban(struct sourceinfo *si, int parc, char *parv[])
{
const char *channel = parv[0];
const char *target = parv[1];
struct channel *c = channel_find(channel);
struct mychan *mc = mychan_find(channel);
struct user *tu;
struct chanban *cb;
if (si->su == NULL)
{
command_fail(si, fault_noprivs, STR_IRC_COMMAND_ONLY, "UNBAN");
return;
}
if (!channel)
{
command_fail(si, fault_needmoreparams, STR_INSUFFICIENT_PARAMS, "UNBAN");
command_fail(si, fault_needmoreparams, _("Syntax: UNBAN <#channel>"));
return;
}
if (target && irccasecmp(target, si->su->nick))
{
command_fail(si, fault_noprivs, _("You may only unban yourself via %s."), si->service->nick);
if (validhostmask(target))
command_fail(si, fault_noprivs, _("Try \2/mode %s -b %s\2"), channel, target);
return;
}
target = si->su->nick;
if (!mc)
{
command_fail(si, fault_nosuch_target, STR_IS_NOT_REGISTERED, channel);
return;
}
if (!c)
{
command_fail(si, fault_nosuch_target, STR_CHANNEL_IS_EMPTY, channel);
return;
}
if (!si->smu)
{
command_fail(si, fault_noprivs, STR_NOT_LOGGED_IN);
return;
}
if (!chanacs_source_has_flag(mc, si, CA_REMOVE) &&
!chanacs_source_has_flag(mc, si, CA_EXEMPT))
{
command_fail(si, fault_noprivs, STR_NOT_AUTHORIZED);
return;
}
tu = si->su;
{
mowgli_node_t *n, *tn;
char hostbuf2[BUFSIZE];
unsigned int count = 0;
snprintf(hostbuf2, BUFSIZE, "%s!%s@%s", tu->nick, tu->user, tu->vhost);
for (n = next_matching_ban(c, tu, 'b', c->bans.head); n != NULL; n = next_matching_ban(c, tu, 'b', tn))
{
tn = n->next;
cb = n->data;
logcommand(si, CMDLOG_DO, "UNBAN: \2%s\2 \2%s\2 (for user \2%s\2)", mc->name, cb->mask, hostbuf2);
modestack_mode_param(chansvs.nick, c, MTYPE_DEL, cb->type, cb->mask);
chanban_delete(cb);
count++;
}
if (count > 0)
command_success_nodata(si, ngettext(N_("Unbanned \2%s\2 on \2%s\2 (%u ban removed)."),
N_("Unbanned \2%s\2 on \2%s\2 (%u bans removed)."),
count), target, channel, count);
else
command_success_nodata(si, _("No bans found matching \2%s\2 on \2%s\2."), target, channel);
return;
}
}
static void cs_cmd_unban(sourceinfo_t *si, int parc, char *parv[])
{
const char *channel = parv[0];
const char *target = parv[1];
channel_t *c = channel_find(channel);
mychan_t *mc = mychan_find(channel);
user_t *tu;
chanban_t *cb;
if (!channel)
{
command_fail(si, fault_needmoreparams, STR_INSUFFICIENT_PARAMS, "UNBAN");
command_fail(si, fault_needmoreparams, _("Syntax: UNBAN <#channel> <nickname|hostmask>"));
return;
}
if (!target)
{
if (si->su == NULL)
{
command_fail(si, fault_needmoreparams, STR_INSUFFICIENT_PARAMS, "UNBAN");
command_fail(si, fault_needmoreparams, _("Syntax: UNBAN <#channel> <nickname|hostmask>"));
return;
}
target = si->su->nick;
}
if (!mc)
{
command_fail(si, fault_nosuch_target, _("Channel \2%s\2 is not registered."), channel);
return;
}
if (!c)
{
command_fail(si, fault_nosuch_target, _("\2%s\2 is currently empty."), channel);
return;
}
if (!chanacs_source_has_flag(mc, si, CA_REMOVE) &&
(si->su == NULL ||
!chanacs_source_has_flag(mc, si, CA_EXEMPT) ||
irccasecmp(target, si->su->nick)))
{
command_fail(si, fault_noprivs, STR_NOT_AUTHORIZED);
return;
}
if ((tu = user_find_named(target)))
{
mowgli_node_t *n, *tn;
char hostbuf2[BUFSIZE];
int count = 0;
snprintf(hostbuf2, BUFSIZE, "%s!%s@%s", tu->nick, tu->user, tu->vhost);
for (n = next_matching_ban(c, tu, 'b', c->bans.head); n != NULL; n = next_matching_ban(c, tu, 'b', tn))
{
tn = n->next;
cb = n->data;
logcommand(si, CMDLOG_DO, "UNBAN: \2%s\2 on \2%s\2 (for user \2%s\2)", cb->mask, mc->name, hostbuf2);
modestack_mode_param(chansvs.nick, c, MTYPE_DEL, cb->type, cb->mask);
chanban_delete(cb);
count++;
}
if (count > 0)
command_success_nodata(si, _("Unbanned \2%s\2 on \2%s\2 (%d ban%s removed)."),
target, channel, count, (count != 1 ? "s" : ""));
else
command_success_nodata(si, _("No bans found matching \2%s\2 on \2%s\2."), target, channel);
return;
}
else if ((cb = chanban_find(c, target, 'b')) != NULL || validhostmask(target))
{
if (cb)
{
modestack_mode_param(chansvs.nick, c, MTYPE_DEL, 'b', target);
chanban_delete(cb);
logcommand(si, CMDLOG_DO, "UNBAN: \2%s\2 on \2%s\2", target, mc->name);
if (si->su == NULL || !chanuser_find(mc->chan, si->su))
command_success_nodata(si, _("Unbanned \2%s\2 on \2%s\2."), target, channel);
}
else
command_fail(si, fault_nosuch_key, _("No such ban \2%s\2 on \2%s\2."), target, channel);
return;
}
else
{
command_fail(si, fault_badparams, _("Invalid nickname/hostmask provided: \2%s\2"), target);
command_fail(si, fault_badparams, _("Syntax: UNBAN <#channel> [nickname|hostmask]"));
return;
}
}
static mowgli_node_t *charybdis_next_matching_ban(channel_t *c, user_t *u, int type, mowgli_node_t *first)
{
chanban_t *cb;
mowgli_node_t *n;
char hostbuf[NICKLEN+USERLEN+HOSTLEN];
char realbuf[NICKLEN+USERLEN+HOSTLEN];
char ipbuf[NICKLEN+USERLEN+HOSTLEN];
char strippedmask[NICKLEN+USERLEN+HOSTLEN+CHANNELLEN+2];
char *p;
bool negate, matched;
int exttype;
channel_t *target_c;
snprintf(hostbuf, sizeof hostbuf, "%s!%s@%s", u->nick, u->user, u->vhost);
snprintf(realbuf, sizeof realbuf, "%s!%s@%s", u->nick, u->user, u->host);
/* will be nick!user@ if ip unknown, doesn't matter */
snprintf(ipbuf, sizeof ipbuf, "%s!%s@%s", u->nick, u->user, u->ip);
MOWGLI_ITER_FOREACH(n, first)
{
cb = n->data;
if (cb->type != type)
continue;
/*
* strip any banforwards from the mask. (SRV-73)
* charybdis itself doesn't support banforward but i don't feel like copying
* this stuff into ircd-seven and it is possible that charybdis may support them
* one day.
* --nenolod
*/
mowgli_strlcpy(strippedmask, cb->mask, sizeof strippedmask);
p = strrchr(strippedmask, '$');
if (p != NULL && p != strippedmask)
*p = 0;
if ((!match(strippedmask, hostbuf) || !match(strippedmask, realbuf) || !match(strippedmask, ipbuf) || !match_cidr(strippedmask, ipbuf)))
return n;
if (strippedmask[0] == '$')
{
static bool recursion_guard = false; /* for $j */
p = strippedmask + 1;
negate = *p == '~';
if (negate)
p++;
exttype = *p++;
if (exttype == '\0')
continue;
/* check parameter */
if (*p++ != ':')
p = NULL;
switch (exttype)
{
case 'a':
matched = u->myuser != NULL && !(u->myuser->flags & MU_WAITAUTH) && (p == NULL || !match(p, entity(u->myuser)->name));
break;
case 'c':
if (p == NULL)
continue;
target_c = channel_find(p);
if (target_c == NULL || (target_c->modes & (CMODE_PRIV | CMODE_SEC)))
continue;
matched = chanuser_find(target_c, u) != NULL;
break;
case 'o':
matched = is_ircop(u);
break;
case 'r':
if (p == NULL)
continue;
matched = !match(p, u->gecos);
break;
case 's':
if (p == NULL)
continue;
matched = !match(p, u->server->name);
break;
case 'x':
if (p == NULL)
continue;
matched = extgecos_match(p, u);
break;
case 'j':
if (recursion_guard)
continue;
if (p == NULL)
continue;
target_c = channel_find(p);
if (target_c == NULL)
continue;
recursion_guard = true;
matched = next_matching_ban(target_c, u, type, target_c->bans.head) != NULL;
recursion_guard = false;
break;
default:
continue;
}
if (negate ^ matched)
return n;
}
}
