1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
/*
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;
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;
}
char *ban_get_masks(IRC_CHANNEL_REC *channel, const char *nicks)
{
GString *str;
char **ban, **banlist, *realban, *ret;
str = g_string_new(NULL);
banlist = g_strsplit(nicks, " ", -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);
ret = str->str;
g_string_free(str, FALSE);
return ret;
}
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)
{
char *masks;
g_return_if_fail(bans != NULL);
masks = ban_get_masks(channel, bans);
channel_set_singlemode(channel->server, channel->name,
masks, "+b");
g_free(masks);
}
void ban_remove(IRC_CHANNEL_REC *channel, const char *bans)
{
GString *str;
GSList *tmp;
char **ban, **banlist;
g_return_if_fail(bans != NULL);
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);
}
|
