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/*
bans.c : irssi
Copyright (C) 1999-2000 Timo Sirainen
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 "module.h"
#include "signals.h"
#include "commands.h"
#include "misc.h"
#include "irc-masks.h"
#include "modes.h"
#include "mode-lists.h"
#include "irc.h"
#include "nicklist.h"
static int bantype;
/* Get ban mask */
char *ban_get_mask(IRC_CHANNEL_REC *channel, const char *nick)
{
NICK_REC *rec;
char *str, *user, *host;
g_return_val_if_fail(IS_IRC_CHANNEL(channel), NULL);
g_return_val_if_fail(nick != NULL, NULL);
rec = nicklist_find(CHANNEL(channel), nick);
if (rec == NULL || rec->host == NULL) return NULL;
str = irc_get_mask(nick, rec->host, bantype);
/* there's a limit of 10 characters in user mask. so, banning
someone with user mask of 10 characters gives us "*1234567890",
which is one too much.. so, replace the 10th character with '*' */
user = strchr(str, '!');
if (user == NULL) return str;
host = strchr(++user, '@');
if (host == NULL) return str;
if ((int) (host-user) > 10) {
/* too long user mask */
user[9] = '*';
g_memmove(user+10, host, strlen(host)+1);
}
return str;
}
void ban_set_type(const char *type)
{
char bantypestr[5], **list;
int n, max;
g_return_if_fail(type != NULL);
if (toupper(type[0]) == 'N') {
bantype = IRC_MASK_USER | IRC_MASK_DOMAIN;
strcpy(bantypestr, "UD");
}
else if (toupper(type[0]) == 'H') {
bantype = IRC_MASK_HOST | IRC_MASK_DOMAIN;
strcpy(bantypestr, "HD");
}
else if (toupper(type[0]) == 'D') {
bantype = IRC_MASK_DOMAIN;
strcpy(bantypestr, "D");
}
else if (toupper(type[0]) == 'C') {
list = g_strsplit(type, " ", -1);
max = strarray_length(list);
bantype = 0;
for (n = 1; n < max; n++) {
if (toupper(list[n][0]) == 'N')
bantype |= IRC_MASK_NICK;
else if (toupper(list[n][0]) == 'U')
bantype |= IRC_MASK_USER;
else if (toupper(list[n][0]) == 'H')
bantype |= IRC_MASK_HOST;
else if (toupper(list[n][0]) == 'D')
bantype |= IRC_MASK_DOMAIN;
}
g_strfreev(list);
bantypestr[0] = '\0';
if (bantype & IRC_MASK_NICK) strcat(bantypestr, "N");
if (bantype & IRC_MASK_USER) strcat(bantypestr, "U");
if (bantype & IRC_MASK_HOST) strcat(bantypestr, "H");
if (bantype & IRC_MASK_DOMAIN) strcat(bantypestr, "D");
}
signal_emit("ban type changed", 1, bantypestr);
}
void ban_set(IRC_CHANNEL_REC *channel, const char *bans)
{
GString *str;
char **ban, **banlist, *realban;
g_return_if_fail(bans != NULL);
str = g_string_new(NULL);
banlist = g_strsplit(bans, " ", -1);
for (ban = banlist; *ban != NULL; ban++) {
if (strchr(*ban, '!') != NULL) {
/* explicit ban */
g_string_sprintfa(str, "%s ", *ban);
continue;
}
/* ban nick */
realban = ban_get_mask(channel, *ban);
if (realban != NULL) {
g_string_sprintfa(str, "%s ", realban);
g_free(realban);
}
}
g_strfreev(banlist);
if (str->len > 0) {
g_string_truncate(str, str->len-1);
channel_set_singlemode(channel->server, channel->name,
str->str, "+b");
}
g_string_free(str, TRUE);
}
void ban_remove(IRC_CHANNEL_REC *channel, const char *bans)
{
GString *str;
GSList *tmp;
char **ban, **banlist;
str = g_string_new(NULL);
banlist = g_strsplit(bans, " ", -1);
for (ban = banlist; *ban != NULL; ban++) {
for (tmp = channel->banlist; tmp != NULL; tmp = tmp->next) {
BAN_REC *rec = tmp->data;
if (match_wildcards(*ban, rec->ban))
g_string_sprintfa(str, "%s ", rec->ban);
}
}
g_strfreev(banlist);
if (str->len > 0)
channel_set_singlemode(channel->server, channel->name,
str->str, "-b");
g_string_free(str, TRUE);
}
static void command_set_ban(const char *data, IRC_SERVER_REC *server, void *item, int set)
{
IRC_CHANNEL_REC *chanrec;
char *channel, *nicks;
void *free_arg;
g_return_if_fail(data != NULL);
if (server == NULL || !server->connected || !IS_IRC_SERVER(server))
cmd_return_error(CMDERR_NOT_CONNECTED);
if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_OPTCHAN | PARAM_FLAG_GETREST,
item, &channel, &nicks)) return;
if (!ischannel(*channel)) cmd_param_error(CMDERR_NOT_JOINED);
if (*nicks == '\0') {
if (strcmp(data, "*") != 0)
cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
/* /BAN * or /UNBAN * - ban/unban everyone */
nicks = (char *) data;
}
chanrec = irc_channel_find(server, channel);
if (chanrec == NULL)
cmd_param_error(CMDERR_CHAN_NOT_FOUND);
if (!chanrec->wholist)
cmd_param_error(CMDERR_CHAN_NOT_SYNCED);
if (set)
ban_set(chanrec, nicks);
else
ban_remove(chanrec, nicks);
cmd_params_free(free_arg);
}
/* SYNTAX: BANTYPE normal|host|domain|custom
BANTYPE custom [nick] [user] [host] [domain] */
static void cmd_bantype(const char *data)
{
ban_set_type(data);
}
/* SYNTAX: BAN <nicks/masks> */
static void cmd_ban(const char *data, IRC_SERVER_REC *server, void *item)
{
command_set_ban(data, server, item, TRUE);
}
/* SYNTAX: UNBAN <masks> */
static void cmd_unban(const char *data, IRC_SERVER_REC *server, void *item)
{
command_set_ban(data, server, item, FALSE);
}
void bans_init(void)
{
/* default bantype */
bantype = IRC_MASK_USER | IRC_MASK_DOMAIN;
command_bind("bantype", NULL, (SIGNAL_FUNC) cmd_bantype);
command_bind("ban", NULL, (SIGNAL_FUNC) cmd_ban);
command_bind("unban", NULL, (SIGNAL_FUNC) cmd_unban);
}
void bans_deinit(void)
{
command_unbind("bantype", (SIGNAL_FUNC) cmd_bantype);
command_unbind("ban", (SIGNAL_FUNC) cmd_ban);
command_unbind("unban", (SIGNAL_FUNC) cmd_unban);
}
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