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/*
* Copyright (c) 2003-2007 by FlashCode <flashcode@flashtux.org>
* See README for License detail, AUTHORS for developers list.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* irc-mode.c: IRC channel/user modes management */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "../common/weechat.h"
#include "irc.h"
#include "../common/util.h"
#include "../gui/gui.h"
/*
* irc_mode_channel_set_nick: set a mode for a nick on a channel
*/
void
irc_mode_channel_set_nick (t_irc_channel *channel, char *nick,
char set_flag, int flag)
{
t_irc_nick *ptr_nick;
if (nick)
{
ptr_nick = irc_nick_search (channel, nick);
if (ptr_nick)
{
IRC_NICK_SET_FLAG(ptr_nick, (set_flag == '+'), flag);
irc_nick_resort (channel, ptr_nick);
gui_nicklist_draw (channel->buffer, 1, 1);
}
}
}
/*
* irc_mode_channel_get_flag: search for flag before current position
*/
char
irc_mode_channel_get_flag (char *str, char *pos)
{
char set_flag;
set_flag = '+';
pos--;
while (pos >= str)
{
if (pos[0] == '-')
return '-';
if (pos[0] == '+')
return '+';
pos--;
}
return set_flag;
}
/*
* irc_mode_channel_set: set channel modes
*/
void
irc_mode_channel_set (t_irc_server *server, t_irc_channel *channel,
char *modes)
{
char *pos_args, set_flag, **argv, *pos, *ptr_arg;
int argc, current_arg;
argc = 0;
argv = NULL;
current_arg = 0;
pos_args = strchr (modes, ' ');
if (pos_args)
{
pos_args[0] = '\0';
pos_args++;
while (pos_args[0] == ' ')
pos_args++;
argv = explode_string (pos_args, " ", 0, &argc);
if (argc > 0)
current_arg = argc - 1;
}
if (modes && modes[0])
{
set_flag = '+';
pos = modes + strlen (modes) - 1;
while (pos >= modes)
{
switch (pos[0])
{
case ':':
case ' ':
case '+':
case '-':
break;
default:
set_flag = irc_mode_channel_get_flag (modes, pos);
switch (pos[0])
{
case 'a': /* channel admin (unrealircd specific flag) */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (irc_mode_nick_prefix_allowed (server, '~'))
irc_mode_channel_set_nick (channel, ptr_arg,
set_flag, IRC_NICK_CHANADMIN);
break;
case 'b': /* ban (ignored) */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
break;
case 'h': /* half-op */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (irc_mode_nick_prefix_allowed (server, '%'))
irc_mode_channel_set_nick (channel, ptr_arg,
set_flag, IRC_NICK_HALFOP);
break;
case 'k': /* channel key */
if (channel->key)
{
free (channel->key);
channel->key = NULL;
}
if (set_flag == '+')
{
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (ptr_arg)
channel->key = strdup (ptr_arg);
}
break;
case 'l': /* channel limit */
if (set_flag == '-')
channel->limit = 0;
if (set_flag == '+')
{
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (ptr_arg)
channel->limit = atoi (ptr_arg);
}
break;
case 'o': /* op */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (irc_mode_nick_prefix_allowed (server, '@'))
irc_mode_channel_set_nick (channel, ptr_arg,
set_flag, IRC_NICK_OP);
break;
case 'q': /* channel owner (unrealircd specific flag) */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (irc_mode_nick_prefix_allowed (server, '~'))
irc_mode_channel_set_nick (channel, ptr_arg,
set_flag, IRC_NICK_CHANOWNER);
break;
case 'u': /* channel user */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (irc_mode_nick_prefix_allowed (server, '-'))
irc_mode_channel_set_nick (channel, ptr_arg,
set_flag, IRC_NICK_CHANUSER);
break;
case 'v': /* voice */
ptr_arg = ((argc > 0) && (current_arg >= 0)) ?
argv[current_arg--] : NULL;
if (irc_mode_nick_prefix_allowed (server, '+'))
irc_mode_channel_set_nick (channel, ptr_arg,
set_flag, IRC_NICK_VOICE);
break;
}
break;
}
pos--;
}
}
if (argv)
free_exploded_string (argv);
}
/*
* irc_mode_user_add: add a user mode
*/
void
irc_mode_user_add (t_irc_server *server, char mode)
{
char str_mode[2];
str_mode[0] = mode;
str_mode[1] = '\0';
if (server->nick_modes)
{
if (!strchr (server->nick_modes, mode))
{
server->nick_modes = (char *) realloc (server->nick_modes,
strlen (server->nick_modes) + 1 + 1);
strcat (server->nick_modes, str_mode);
gui_status_draw (gui_current_window->buffer, 1);
gui_input_draw (gui_current_window->buffer, 1);
}
}
else
{
server->nick_modes = (char *) malloc (2);
strcpy (server->nick_modes, str_mode);
gui_status_draw (gui_current_window->buffer, 1);
gui_input_draw (gui_current_window->buffer, 1);
}
}
/*
* irc_mode_user_remove: remove a user mode
*/
void
irc_mode_user_remove (t_irc_server *server, char mode)
{
char *pos;
int new_size;
if (server->nick_modes)
{
pos = strchr (server->nick_modes, mode);
if (pos)
{
new_size = strlen (server->nick_modes);
memmove (pos, pos + 1, strlen (pos + 1) + 1);
server->nick_modes = (char *) realloc (server->nick_modes,
new_size);
gui_status_draw (gui_current_window->buffer, 1);
gui_input_draw (gui_current_window->buffer, 1);
}
}
}
/*
* irc_mode_user_set: set user modes
*/
void
irc_mode_user_set (t_irc_server *server, char *modes)
{
char set_flag;
set_flag = '+';
while (modes && modes[0])
{
switch (modes[0])
{
case ':':
case ' ':
break;
case '+':
set_flag = '+';
break;
case '-':
set_flag = '-';
break;
default:
if (set_flag == '+')
irc_mode_user_add (server, modes[0]);
else
irc_mode_user_remove (server, modes[0]);
break;
}
modes++;
}
}
/*
* irc_mode_nick_prefix_allowed: return <> 0 if nick prefix is allowed by server
* for example :
* IRC: 005 (...) PREFIX=(ov)@+
* => allowed prefixes: @+
*/
int
irc_mode_nick_prefix_allowed (t_irc_server *server, char prefix)
{
char str[2];
/* if server did not send any prefix info, then use default prefixes */
if (!server->prefix)
{
str[0] = prefix;
str[1] = '\0';
return (strpbrk (str, IRC_DEFAULT_PREFIXES_LIST)) ? 1 : 0;
}
return (strchr (server->prefix, prefix) != NULL);
}
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