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
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
|
/*
channel-events.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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "module.h"
#include "signals.h"
#include "misc.h"
#include "channels-setup.h"
#include "settings.h"
#include "recode.h"
#include "irc-servers.h"
#include "irc-channels.h"
static void check_join_failure(IRC_SERVER_REC *server, const char *channel)
{
CHANNEL_REC *chanrec;
char *chan2;
if (channel[0] == '!' && channel[1] == '!')
channel++; /* server didn't understand !channels */
chanrec = channel_find(SERVER(server), channel);
if (chanrec == NULL && channel[0] == '!') {
/* it probably replied with the full !channel name,
find the channel with the short name.. */
chan2 = g_strdup_printf("!%s", channel+6);
chanrec = channel_find(SERVER(server), chan2);
g_free(chan2);
}
if (chanrec != NULL && !chanrec->joined) {
chanrec->left = TRUE;
channel_destroy(chanrec);
}
}
static void irc_server_event(IRC_SERVER_REC *server, const char *line)
{
char *params, *numeric, *channel;
/* We'll be checking "4xx <your nick> <channel>" for channels
which we haven't joined yet. 4xx are error codes and should
indicate that the join failed. */
params = event_get_params(line, 3, &numeric, NULL, &channel);
if (numeric[0] == '4')
check_join_failure(server, channel);
g_free(params);
}
static void event_no_such_channel(IRC_SERVER_REC *server, const char *data)
{
CHANNEL_REC *chanrec;
CHANNEL_SETUP_REC *setup;
char *params, *channel;
params = event_get_params(data, 2, NULL, &channel);
chanrec = *channel == '!' && channel[1] != '\0' ?
channel_find(SERVER(server), channel) : NULL;
if (chanrec != NULL) {
/* !channel didn't exist, so join failed */
setup = channel_setup_find(chanrec->name,
chanrec->server->connrec->chatnet);
if (setup != NULL && setup->autojoin) {
/* it's autojoin channel though, so create it */
irc_send_cmdv(server, "JOIN !%s", chanrec->name);
g_free(params);
return;
}
}
check_join_failure(server, channel);
g_free(params);
}
static void event_duplicate_channel(IRC_SERVER_REC *server, const char *data)
{
CHANNEL_REC *chanrec;
char *params, *channel, *p;
g_return_if_fail(data != NULL);
/* this new addition to ircd breaks completely with older
"standards", "nick Duplicate ::!!channel ...." */
params = event_get_params(data, 3, NULL, NULL, &channel);
p = strchr(channel, ' ');
if (p != NULL) *p = '\0';
if (channel[0] == '!') {
chanrec = channel_find(SERVER(server),
channel+(channel[1] == '!'));
if (chanrec != NULL && !chanrec->names_got) {
chanrec->left = TRUE;
channel_destroy(chanrec);
}
}
g_free(params);
}
static void event_target_unavailable(IRC_SERVER_REC *server, const char *data)
{
char *params, *channel;
g_return_if_fail(data != NULL);
params = event_get_params(data, 2, NULL, &channel);
if (ischannel(*channel)) {
/* channel is unavailable - try to join again a bit later */
check_join_failure(server, channel);
}
g_free(params);
}
static void channel_change_topic(IRC_SERVER_REC *server, const char *channel,
const char *topic, const char *setby,
time_t settime)
{
CHANNEL_REC *chanrec;
char *recoded = NULL;
chanrec = channel_find(SERVER(server), channel);
if (chanrec == NULL) return;
/* the topic may be send out encoded, so we need to
recode it back or /topic <tab> will not work properly */
recoded = recode_in(SERVER(server), topic, channel);
if (topic != NULL) {
g_free_not_null(chanrec->topic);
chanrec->topic = recoded == NULL ? NULL : g_strdup(recoded);
}
g_free(recoded);
g_free_not_null(chanrec->topic_by);
chanrec->topic_by = g_strdup(setby);
chanrec->topic_time = settime;
signal_emit("channel topic changed", 1, chanrec);
}
static void event_topic_get(IRC_SERVER_REC *server, const char *data)
{
char *params, *channel, *topic;
g_return_if_fail(data != NULL);
params = event_get_params(data, 3, NULL, &channel, &topic);
channel_change_topic(server, channel, topic, NULL, 0);
g_free(params);
}
static void event_topic(IRC_SERVER_REC *server, const char *data,
const char *nick, const char *addr)
{
char *params, *channel, *topic, *mask;
g_return_if_fail(data != NULL);
params = event_get_params(data, 2, &channel, &topic);
mask = addr == NULL ? g_strdup(nick) :
g_strconcat(nick, "!", addr, NULL);
channel_change_topic(server, channel, topic, mask, time(NULL));
g_free(mask);
g_free(params);
}
static void event_topic_info(IRC_SERVER_REC *server, const char *data)
{
char *params, *channel, *topicby, *topictime;
time_t t;
g_return_if_fail(data != NULL);
params = event_get_params(data, 4, NULL, &channel,
&topicby, &topictime);
t = (time_t) atol(topictime);
channel_change_topic(server, channel, NULL, topicby, t);
g_free(params);
}
/* Find any unjoined channel that matches `channel'. Long channel names are
also a bit problematic, so find a channel where start of the name matches. */
static IRC_CHANNEL_REC *channel_find_unjoined(IRC_SERVER_REC *server,
const char *channel)
{
GSList *tmp;
int len;
len = strlen(channel);
for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
IRC_CHANNEL_REC *rec = tmp->data;
if (!IS_IRC_CHANNEL(rec) || rec->joined)
continue;
if (g_strncasecmp(channel, rec->name, len) == 0 &&
(len > 20 || rec->name[len] == '\0'))
return rec;
}
return NULL;
}
static void event_join(IRC_SERVER_REC *server, const char *data, const char *nick, const char *address)
{
char *params, *channel, *tmp, *shortchan;
IRC_CHANNEL_REC *chanrec;
g_return_if_fail(data != NULL);
if (g_strcasecmp(nick, server->nick) != 0) {
/* someone else joined channel, no need to do anything */
return;
}
if (server->userhost == NULL)
server->userhost = g_strdup(address);
params = event_get_params(data, 1, &channel);
tmp = strchr(channel, 7); /* ^G does something weird.. */
if (tmp != NULL) *tmp = '\0';
if (*channel != '!' || strlen(channel) < 7)
shortchan = NULL;
else {
/* !channels have 5 chars long identification string before
it's name, it's not known when /join is called so rename
!channel here to !ABCDEchannel */
shortchan = g_strdup_printf("!%s", channel+6);
chanrec = channel_find_unjoined(server, shortchan);
if (chanrec != NULL) {
channel_change_name(CHANNEL(chanrec), channel);
g_free(chanrec->name);
chanrec->name = g_strdup(channel);
} else {
/* well, did we join it with full name? if so, and if
this was the first short one, change it's name. */
chanrec = channel_find_unjoined(server, channel);
if (chanrec != NULL &&
irc_channel_find(server, shortchan) == NULL) {
channel_change_visible_name(CHANNEL(chanrec),
shortchan);
}
}
}
chanrec = irc_channel_find(server, channel);
if (chanrec != NULL && chanrec->joined) {
/* already joined this channel - probably a broken proxy that
forgot to send PART between */
chanrec->left = TRUE;
channel_destroy(CHANNEL(chanrec));
chanrec = NULL; }
if (chanrec == NULL) {
/* look again, because of the channel name cut issues. */
chanrec = channel_find_unjoined(server, channel);
}
if (chanrec == NULL) {
/* didn't get here with /join command.. */
chanrec = irc_channel_create(server, channel, shortchan, TRUE);
}
chanrec->joined = TRUE;
if (strcmp(chanrec->name, channel) != 0) {
g_free(chanrec->name);
chanrec->name = g_strdup(channel);
}
g_free(shortchan);
g_free(params);
}
static void event_part(IRC_SERVER_REC *server, const char *data, const char *nick)
{
char *params, *channel, *reason;
CHANNEL_REC *chanrec;
g_return_if_fail(data != NULL);
if (g_strcasecmp(nick, server->nick) != 0) {
/* someone else part, no need to do anything here */
return;
}
params = event_get_params(data, 2, &channel, &reason);
chanrec = channel_find(SERVER(server), channel);
if (chanrec != NULL && chanrec->joined) {
chanrec->left = TRUE;
channel_destroy(chanrec);
}
g_free(params);
}
static void event_kick(IRC_SERVER_REC *server, const char *data)
{
CHANNEL_REC *chanrec;
char *params, *channel, *nick, *reason;
g_return_if_fail(data != NULL);
params = event_get_params(data, 3, &channel, &nick, &reason);
if (g_strcasecmp(nick, server->nick) != 0) {
/* someone else was kicked, no need to do anything */
g_free(params);
return;
}
chanrec = channel_find(SERVER(server), channel);
if (chanrec != NULL) {
irc_server_purge_output(server, channel);
chanrec->kicked = TRUE;
channel_destroy(chanrec);
}
g_free(params);
}
static void event_invite(IRC_SERVER_REC *server, const char *data)
{
char *params, *channel, *shortchan;
g_return_if_fail(data != NULL);
params = event_get_params(data, 2, NULL, &channel);
if (irc_channel_find(server, channel) == NULL) {
/* check if we're supposed to autojoin this channel */
CHANNEL_SETUP_REC *setup;
setup = channel_setup_find(channel, server->connrec->chatnet);
if (setup == NULL && channel[0] == '!' &&
strlen(channel) > 6) {
shortchan = g_strdup_printf("!%s", channel+6);
setup = channel_setup_find(shortchan,
server->connrec->chatnet);
g_free(shortchan);
}
if (setup != NULL && setup->autojoin && settings_get_bool("join_auto_chans_on_invite"))
server->channels_join(SERVER(server), channel, TRUE);
}
g_free_not_null(server->last_invite);
server->last_invite = g_strdup(channel);
g_free(params);
}
void channel_events_init(void)
{
settings_add_bool("misc", "join_auto_chans_on_invite", TRUE);
signal_add_first("server event", (SIGNAL_FUNC) irc_server_event);
signal_add_first("event 403", (SIGNAL_FUNC) event_no_such_channel); /* no such channel */
signal_add_first("event 407", (SIGNAL_FUNC) event_duplicate_channel); /* duplicate channel */
signal_add("event topic", (SIGNAL_FUNC) event_topic);
signal_add_first("event join", (SIGNAL_FUNC) event_join);
signal_add("event part", (SIGNAL_FUNC) event_part);
signal_add("event kick", (SIGNAL_FUNC) event_kick);
signal_add("event invite", (SIGNAL_FUNC) event_invite);
signal_add("event 332", (SIGNAL_FUNC) event_topic_get);
signal_add("event 333", (SIGNAL_FUNC) event_topic_info);
signal_add_first("event 437", (SIGNAL_FUNC) event_target_unavailable); /* channel/nick unavailable */
}
void channel_events_deinit(void)
{
signal_remove("server event", (SIGNAL_FUNC) irc_server_event);
signal_remove("event 403", (SIGNAL_FUNC) event_no_such_channel); /* no such channel */
signal_remove("event 407", (SIGNAL_FUNC) event_duplicate_channel); /* duplicate channel */
signal_remove("event topic", (SIGNAL_FUNC) event_topic);
signal_remove("event join", (SIGNAL_FUNC) event_join);
signal_remove("event part", (SIGNAL_FUNC) event_part);
signal_remove("event kick", (SIGNAL_FUNC) event_kick);
signal_remove("event invite", (SIGNAL_FUNC) event_invite);
signal_remove("event 332", (SIGNAL_FUNC) event_topic_get);
signal_remove("event 333", (SIGNAL_FUNC) event_topic_info);
signal_remove("event 437", (SIGNAL_FUNC) event_target_unavailable); /* channel/nick unavailable */
}
|