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[irc/evilnet/x3.git] / src / proto-p10.c
1 /* proto-p10.c - IRC protocol output
2 * Copyright 2000-2004 srvx Development Team
3 *
4 * This file is part of srvx.
5 *
6 * srvx is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with srvx; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 */
20
21 #include "proto-common.c"
22
23 /* Full commands. */
24 #define CMD_ACCOUNT "ACCOUNT"
25 #define CMD_ADMIN "ADMIN"
26 #define CMD_ASLL "ASLL"
27 #define CMD_AWAY "AWAY"
28 #define CMD_BURST "BURST"
29 #define CMD_CLEARMODE "CLEARMODE"
30 #define CMD_CLOSE "CLOSE"
31 #define CMD_CNOTICE "CNOTICE"
32 #define CMD_CONNECT "CONNECT"
33 #define CMD_CPRIVMSG "CPRIVMSG"
34 #define CMD_CREATE "CREATE"
35 #define CMD_DESTRUCT "DESTRUCT"
36 #define CMD_DESYNCH "DESYNCH"
37 #define CMD_DIE "DIE"
38 #define CMD_DNS "DNS"
39 #define CMD_EOB "END_OF_BURST"
40 #define CMD_EOB_ACK "EOB_ACK"
41 #define CMD_ERROR "ERROR"
42 #define CMD_FAKEHOST "FAKE"
43 #define CMD_GET "GET"
44 #define CMD_GLINE "GLINE"
45 #define CMD_HASH "HASH"
46 #define CMD_HELP "HELP"
47 #define CMD_INFO "INFO"
48 #define CMD_INVITE "INVITE"
49 #define CMD_ISON "ISON"
50 #define CMD_JOIN "JOIN"
51 #define CMD_JUPE "JUPE"
52 #define CMD_KICK "KICK"
53 #define CMD_KILL "KILL"
54 #define CMD_LINKS "LINKS"
55 #define CMD_LIST "LIST"
56 #define CMD_LUSERS "LUSERS"
57 #define CMD_MAP "MAP"
58 #define CMD_MODE "MODE"
59 #define CMD_MOTD "MOTD"
60 #define CMD_NAMES "NAMES"
61 #define CMD_NICK "NICK"
62 #define CMD_NOTICE "NOTICE"
63 #define CMD_OPER "OPER"
64 #define CMD_OPMODE "OPMODE"
65 #define CMD_PART "PART"
66 #define CMD_PASS "PASS"
67 #define CMD_PING "PING"
68 #define CMD_PONG "PONG"
69 #define CMD_POST "POST"
70 #define CMD_PRIVMSG "PRIVMSG"
71 #define CMD_PRIVS "PRIVS"
72 #define CMD_PROTO "PROTO"
73 #define CMD_QUIT "QUIT"
74 #define CMD_REHASH "REHASH"
75 #define CMD_RESET "RESET"
76 #define CMD_RESTART "RESTART"
77 #define CMD_RPING "RPING"
78 #define CMD_RPONG "RPONG"
79 #define CMD_SERVER "SERVER"
80 #define CMD_SERVLIST "SERVLIST"
81 #define CMD_SERVSET "SERVSET"
82 #define CMD_SET "SET"
83 #define CMD_SETTIME "SETTIME"
84 #define CMD_SILENCE "SILENCE"
85 #define CMD_SQUERY "SQUERY"
86 #define CMD_SQUIT "SQUIT"
87 #define CMD_STATS "STATS"
88 #define CMD_SVSNICK "SVSNICK"
89 #define CMD_TIME "TIME"
90 #define CMD_TOPIC "TOPIC"
91 #define CMD_TRACE "TRACE"
92 #define CMD_UPING "UPING"
93 #define CMD_USER "USER"
94 #define CMD_USERHOST "USERHOST"
95 #define CMD_USERIP "USERIP"
96 #define CMD_VERSION "VERSION"
97 #define CMD_WALLCHOPS "WALLCHOPS"
98 #define CMD_WALLOPS "WALLOPS"
99 #define CMD_WALLHOPS "WALLHOPS"
100 #define CMD_WALLUSERS "WALLUSERS"
101 #define CMD_WALLVOICES "WALLVOICES"
102 #define CMD_WALLHOPS "WALLHOPS"
103 #define CMD_WHO "WHO"
104 #define CMD_WHOIS "WHOIS"
105 #define CMD_WHOWAS "WHOWAS"
106
107 /* Tokenized commands. */
108 #define TOK_ACCOUNT "AC"
109 #define TOK_ADMIN "AD"
110 #define TOK_ASLL "LL"
111 #define TOK_AWAY "A"
112 #define TOK_BURST "B"
113 #define TOK_CLEARMODE "CM"
114 #define TOK_CLOSE "CLOSE"
115 #define TOK_CNOTICE "CN"
116 #define TOK_CONNECT "CO"
117 #define TOK_CPRIVMSG "CP"
118 #define TOK_CREATE "C"
119 #define TOK_DESTRUCT "DE"
120 #define TOK_DESYNCH "DS"
121 #define TOK_DIE "DIE"
122 #define TOK_DNS "DNS"
123 #define TOK_EOB "EB"
124 #define TOK_EOB_ACK "EA"
125 #define TOK_ERROR "Y"
126 #define TOK_FAKEHOST "FA"
127 #define TOK_GET "GET"
128 #define TOK_GLINE "GL"
129 #define TOK_HASH "HASH"
130 #define TOK_HELP "HELP"
131 #define TOK_INFO "F"
132 #define TOK_INVITE "I"
133 #define TOK_ISON "ISON"
134 #define TOK_JOIN "J"
135 #define TOK_JUPE "JU"
136 #define TOK_KICK "K"
137 #define TOK_KILL "D"
138 #define TOK_LINKS "LI"
139 #define TOK_LIST "LIST"
140 #define TOK_LUSERS "LU"
141 #define TOK_MAP "MAP"
142 #define TOK_MODE "M"
143 #define TOK_MOTD "MO"
144 #define TOK_NAMES "E"
145 #define TOK_NICK "N"
146 #define TOK_NOTICE "O"
147 #define TOK_OPER "OPER"
148 #define TOK_OPMODE "OM"
149 #define TOK_PART "L"
150 #define TOK_PASS "PA"
151 #define TOK_PING "G"
152 #define TOK_PONG "Z"
153 #define TOK_POST "POST"
154 #define TOK_PRIVMSG "P"
155 #define TOK_PRIVS "PRIVS"
156 #define TOK_PROTO "PROTO"
157 #define TOK_QUIT "Q"
158 #define TOK_REHASH "REHASH"
159 #define TOK_RESET "RESET"
160 #define TOK_RESTART "RESTART"
161 #define TOK_RPING "RI"
162 #define TOK_RPONG "RO"
163 #define TOK_SERVER "S"
164 #define TOK_SERVLIST "SERVSET"
165 #define TOK_SERVSET "SERVSET"
166 #define TOK_SET "SET"
167 #define TOK_SETTIME "SE"
168 #define TOK_SILENCE "U"
169 #define TOK_SQUERY "SQUERY"
170 #define TOK_SQUIT "SQ"
171 #define TOK_STATS "R"
172 #define TOK_SVSNICK "SN"
173 #define TOK_TIME "TI"
174 #define TOK_TOPIC "T"
175 #define TOK_TRACE "TR"
176 #define TOK_UPING "UP"
177 #define TOK_USER "USER"
178 #define TOK_USERHOST "USERHOST"
179 #define TOK_USERIP "USERIP"
180 #define TOK_VERSION "V"
181 #define TOK_WALLCHOPS "WC"
182 #define TOK_WALLOPS "WA"
183 #define TOK_WALLHOPS "WH"
184 #define TOK_WALLUSERS "WU"
185 #define TOK_WALLVOICES "WV"
186 #define TOK_WALLHOPS "WH"
187 #define TOK_WHO "H"
188 #define TOK_WHOIS "W"
189 #define TOK_WHOWAS "X"
190
191 /* Protocol messages; aliased to full commands or tokens depending
192 on compile-time configuration. ircu prefers tokens WITH THE
193 EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
194 tokenized, because clients' (ie. a linking server) commands are
195 only checked against the full command list.
196 */
197 #if defined(ENABLE_TOKENS)
198 #define TYPE(NAME) TOK_ ## NAME
199 #else /* !ENABLE_TOKENS */
200 #define TYPE(NAME) CMD_ ## NAME
201 #endif /* ENABLE_TOKENS */
202
203 #define P10_ACCOUNT TYPE(ACCOUNT)
204 #define P10_ADMIN TYPE(ADMIN)
205 #define P10_ASLL TYPE(ASLL)
206 #define P10_AWAY TYPE(AWAY)
207 #define P10_BURST TYPE(BURST)
208 #define P10_CLEARMODE TYPE(CLEARMODE)
209 #define P10_CLOSE TYPE(CLOSE)
210 #define P10_CNOTICE TYPE(CNOTICE)
211 #define P10_CONNECT TYPE(CONNECT)
212 #define P10_CPRIVMSG TYPE(CPRIVMSG)
213 #define P10_CREATE TYPE(CREATE)
214 #define P10_DESTRUCT TYPE(DESTRUCT)
215 #define P10_DESYNCH TYPE(DESYNCH)
216 #define P10_DIE TYPE(DIE)
217 #define P10_DNS TYPE(DNS)
218 #define P10_EOB TYPE(EOB)
219 #define P10_EOB_ACK TYPE(EOB_ACK)
220 #define P10_ERROR TYPE(ERROR)
221 #define P10_FAKEHOST TYPE(FAKEHOST)
222 #define P10_GET TYPE(GET)
223 #define P10_GLINE TYPE(GLINE)
224 #define P10_HASH TYPE(HASH)
225 #define P10_HELP TYPE(HELP)
226 #define P10_INFO TYPE(INFO)
227 #define P10_INVITE TYPE(INVITE)
228 #define P10_ISON TYPE(ISON)
229 #define P10_JOIN TYPE(JOIN)
230 #define P10_JUPE TYPE(JUPE)
231 #define P10_KICK TYPE(KICK)
232 #define P10_KILL TYPE(KILL)
233 #define P10_LINKS TYPE(LINKS)
234 #define P10_LIST TYPE(LIST)
235 #define P10_LUSERS TYPE(LUSERS)
236 #define P10_MAP TYPE(MAP)
237 #define P10_MODE TYPE(MODE)
238 #define P10_MOTD TYPE(MOTD)
239 #define P10_NAMES TYPE(NAMES)
240 #define P10_NICK TYPE(NICK)
241 #define P10_NOTICE TYPE(NOTICE)
242 #define P10_OPER TYPE(OPER)
243 #define P10_OPMODE TYPE(OPMODE)
244 #define P10_PART TYPE(PART)
245 #define P10_PASS CMD_PASS
246 #define P10_PING TYPE(PING)
247 #define P10_PONG TYPE(PONG)
248 #define P10_POST TYPE(POST)
249 #define P10_PRIVMSG TYPE(PRIVMSG)
250 #define P10_PRIVS TYPE(PRIVS)
251 #define P10_PROTO TYPE(PROTO)
252 #define P10_QUIT TYPE(QUIT)
253 #define P10_REHASH TYPE(REHASH)
254 #define P10_RESET TYPE(RESET)
255 #define P10_RESTART TYPE(RESTART)
256 #define P10_RPING TYPE(RPING)
257 #define P10_RPONG TYPE(RPONG)
258 #define P10_SERVER CMD_SERVER
259 #define P10_SERVLIST TYPE(SERVLIST)
260 #define P10_SERVSET TYPE(SERVSET)
261 #define P10_SET TYPE(SET)
262 #define P10_SETTIME TYPE(SETTIME)
263 #define P10_SILENCE TYPE(SILENCE)
264 #define P10_SQUERY TYPE(SQUERY)
265 #define P10_SQUIT TYPE(SQUIT)
266 #define P10_STATS TYPE(STATS)
267 #define P10_SVSNICK TYPE(SVSNICK)
268 #define P10_TIME TYPE(TIME)
269 #define P10_TOPIC TYPE(TOPIC)
270 #define P10_TRACE TYPE(TRACE)
271 #define P10_UPING TYPE(UPING)
272 #define P10_USER TYPE(USER)
273 #define P10_USERHOST TYPE(USERHOST)
274 #define P10_USERIP TYPE(USERIP)
275 #define P10_VERSION TYPE(VERSION)
276 #define P10_WALLCHOPS TYPE(WALLCHOPS)
277 #define P10_WALLOPS TYPE(WALLOPS)
278 #define P10_WALLHOPS TYPE(WALLHOPS)
279 #define P10_WALLUSERS TYPE(WALLUSERS)
280 #define P10_WALLVOICES TYPE(WALLVOICES)
281 #define P10_WHO TYPE(WHO)
282 #define P10_WHOIS TYPE(WHOIS)
283 #define P10_WHOWAS TYPE(WHOWAS)
284
285 /* Servers claiming to have a boot or link time before PREHISTORY
286 * trigger errors to the log. We hope no server has been running
287 * constantly since September 1994. :)
288 */
289 #define PREHISTORY 780000000
290
291 static struct server *servers_num[64*64];
292 static privmsg_func_t *privmsg_funcs;
293 static unsigned int num_privmsg_funcs;
294 static privmsg_func_t *notice_funcs;
295 static unsigned int num_notice_funcs;
296 static struct dict *unbursted_channels;
297 static char *his_servername;
298 static char *his_servercomment;
299
300 static struct userNode *AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip);
301
302 extern int off_channel;
303
304 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
305 * server and Y's indentifying the client on that server. */
306 struct server*
307 GetServerN(const char *numeric)
308 {
309 switch (strlen(numeric)) {
310 default:
311 return servers_num[base64toint(numeric, 2)];
312 case 4:
313 case 3:
314 case 1:
315 return servers_num[base64toint(numeric, 1)];
316 case 0:
317 return NULL;
318 }
319 }
320
321 struct userNode*
322 GetUserN(const char *numeric) /* using numeric */
323 {
324 struct userNode *un;
325 struct server *s;
326 int n, slen, ulen;
327
328 switch (strlen(numeric)) {
329 default:
330 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
331 return NULL;
332 case 5: slen = 2; ulen = 3; break;
333 case 4: slen = 1; ulen = 3; break;
334 case 3: slen = 1; ulen = 2; break;
335 case 2: case 1: case 0:
336 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
337 return NULL;
338 }
339 if (!(s = servers_num[base64toint(numeric, slen)])) {
340 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
341 return NULL;
342 }
343 n = base64toint(numeric+slen, ulen) & s->num_mask;
344 if (!(un = s->users[n])) {
345 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
346 }
347 return un;
348 }
349
350 static void
351 privmsg_user_helper(struct userNode *un, void *data)
352 {
353 struct privmsg_desc *pd = data;
354 unsigned int num = un->num_local;
355 if (!pd->is_notice) {
356 if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
357 privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
358 }
359 } else {
360 if ((num < num_notice_funcs) && notice_funcs[num]) {
361 notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
362 }
363 }
364 }
365
366 void
367 irc_server(struct server *srv)
368 {
369 char extranum[COMBO_NUMERIC_LEN+1];
370
371 inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
372 if (srv == self) {
373 /* The +s, ignored by Run's ircu, means "service" to Undernet's ircu */
374 putsock(P10_SERVER " %s %d %li %li J10 %s%s +s :%s",
375 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
376 } else {
377 putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s :%s",
378 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
379 }
380 }
381
382 void
383 irc_user(struct userNode *user)
384 {
385 char b64ip[7];
386 if (!user)
387 return;
388 inttobase64(b64ip, ntohl(user->ip.s_addr), 6);
389 if (user->modes) {
390 int modelen;
391 char modes[32];
392
393 modelen = 0;
394 if (IsOper(user))
395 modes[modelen++] = 'o';
396 if (IsInvisible(user))
397 modes[modelen++] = 'i';
398 if (IsWallOp(user))
399 modes[modelen++] = 'w';
400 if (IsService(user))
401 modes[modelen++] = 'k';
402 if (IsServNotice(user))
403 modes[modelen++] = 's';
404 if (IsDeaf(user))
405 modes[modelen++] = 'd';
406 if (IsGlobal(user))
407 modes[modelen++] = 'g';
408 // sethost - reed/apples
409 // if (IsHelperIrcu(user))
410 if (IsSetHost(user))
411 modes[modelen++] = 'h';
412 if (IsFakeHost(user))
413 modes[modelen++] = 'f';
414 if (IsHiddenHost(user))
415 modes[modelen++] = 'x';
416 modes[modelen] = 0;
417
418 /* we don't need to put the + in modes because it's in the format string. */
419 putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
420 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
421 } else {
422 putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
423 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
424 }
425 }
426
427 void
428 irc_account(struct userNode *user, const char *stamp)
429 {
430 putsock("%s " P10_ACCOUNT " %s %s", self->numeric, user->numeric, stamp);
431 }
432
433 void
434 irc_fakehost(struct userNode *user, const char *host)
435 {
436 putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
437 }
438
439 void
440 irc_regnick(UNUSED_ARG(struct userNode *user))
441 {
442 /* no operation here */
443 }
444
445 void
446 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
447 {
448 putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
449 }
450
451 void
452 irc_fetchtopic(struct userNode *from, const char *to)
453 {
454 if (!from || !to)
455 return;
456 putsock("%s " P10_TOPIC " %s", from->numeric, to);
457 }
458
459 void
460 irc_squit(struct server *srv, const char *message, const char *service_message)
461 {
462 if (!service_message)
463 service_message = message;
464
465 /* Are we leaving the network? */
466 if (srv == self && cManager.uplink->state == CONNECTED) {
467 unsigned int i;
468
469 /* Quit all clients linked to me. */
470 for (i = 0; i <= self->num_mask; i++) {
471 if (!self->users[i])
472 continue;
473 irc_quit(self->users[i], service_message);
474 }
475 }
476
477 putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
478
479 if (srv == self) {
480 /* Force a reconnect to the currently selected server. */
481 cManager.uplink->tries = 0;
482 log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
483 close_socket();
484 }
485 }
486
487 void
488 irc_wallchops(struct userNode *from, const char *to, const char *message)
489 {
490 putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
491 }
492
493 void
494 irc_notice(struct userNode *from, const char *to, const char *message)
495 {
496 putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
497 }
498
499 void
500 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
501 {
502 putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
503 }
504
505 void
506 irc_privmsg(struct userNode *from, const char *to, const char *message)
507 {
508 putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
509 }
510
511 void
512 irc_eob(void)
513 {
514 putsock("%s " P10_EOB, self->numeric);
515 }
516
517 void
518 irc_eob_ack(void)
519 {
520 putsock("%s " P10_EOB_ACK, self->numeric);
521 }
522
523 void
524 irc_ping(const char *payload)
525 {
526 putsock("%s " P10_PING " :%s", self->numeric, payload);
527 }
528
529 void
530 irc_pong(const char *who, const char *data)
531 {
532 putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
533 }
534
535 void
536 irc_pass(const char *passwd)
537 {
538 putsock(P10_PASS " :%s", passwd);
539 }
540
541 void
542 irc_introduce(const char *passwd)
543 {
544 void timed_send_ping(void *data);
545
546 self->self_burst = self->burst = 1;
547 irc_pass(passwd);
548 irc_server(self);
549 burst_length = 0;
550 timeq_add(now + ping_freq, timed_send_ping, 0);
551 }
552
553 void
554 irc_gline(struct server *srv, struct gline *gline)
555 {
556 putsock("%s " P10_GLINE " %s +%s %ld :<%s> %s",
557 self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->issuer, gline->reason);
558 }
559
560 void
561 irc_settime(const char *srv_name_mask, time_t new_time)
562 {
563 ioset_set_time(new_time);
564 if (!strcmp(srv_name_mask, "*"))
565 srv_name_mask = "";
566 putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
567 }
568
569 void
570 irc_ungline(const char *mask)
571 {
572 putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
573 }
574
575 static void
576 irc_burst(struct chanNode *chan)
577 {
578 char burst_line[512];
579 int pos, base_len, len;
580 struct modeNode *mn;
581 struct banNode *bn;
582 struct exemptNode *en;
583 long last_mode=-1;
584 unsigned int n;
585
586 base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
587 self->numeric, chan->name, chan->timestamp);
588 len = irc_make_chanmode(chan, burst_line+base_len);
589 pos = base_len + len;
590 if (len)
591 burst_line[pos++] = ' ';
592
593 /* dump the users */
594 for (n=0; n<chan->members.used; n++) {
595 mn = chan->members.list[n];
596 if (pos > 500) {
597 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
598 putsock("%s", burst_line);
599 pos = base_len;
600 last_mode = -1;
601 }
602 memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
603 pos += strlen(mn->user->numeric);
604 if (mn->modes && (mn->modes != last_mode)) {
605 last_mode = mn->modes;
606 burst_line[pos++] = ':';
607 if (last_mode & MODE_CHANOP)
608 burst_line[pos++] = 'o';
609 if (last_mode & MODE_HALFOP)
610 burst_line[pos++] = 'h';
611 if (last_mode & MODE_VOICE)
612 burst_line[pos++] = 'v';
613 }
614 if ((n+1)<chan->members.used)
615 burst_line[pos++] = ',';
616 }
617 if (chan->banlist.used) {
618 /* dump the bans */
619 if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
620 burst_line[pos-1] = 0;
621 putsock("%s", burst_line);
622 pos = base_len;
623 } else {
624 burst_line[pos++] = ' ';
625 }
626
627 burst_line[pos++] = ':';
628 burst_line[pos++] = '%';
629 base_len = pos;
630 for (n=0; n<chan->banlist.used; n++) {
631 bn = chan->banlist.list[n];
632 len = strlen(bn->ban);
633 if (pos+len+1 > 510) {
634 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
635 putsock("%s", burst_line);
636 pos = base_len;
637 }
638 memcpy(burst_line+pos, bn->ban, len);
639 pos += len;
640 burst_line[pos++] = ' ';
641 }
642 }
643 if (chan->exemptlist.used) {
644 /* dump the exempt */
645 if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
646 burst_line[pos-1] = 0;
647 putsock("%s", burst_line);
648 pos = base_len;
649 } else {
650 burst_line[pos++] = ' ';
651 }
652
653 burst_line[pos++] = ' ';
654 burst_line[pos++] = '~';
655 burst_line[pos++] = ' ';
656 base_len = pos;
657 for (n=0; n<chan->exemptlist.used; n++) {
658 en = chan->exemptlist.list[n];
659 len = strlen(en->exempt);
660 if (pos+len+1 > 510) {
661 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
662 putsock("%s", burst_line);
663 pos = base_len;
664 }
665 memcpy(burst_line+pos, en->exempt, len);
666 pos += len;
667 burst_line[pos++] = ' ';
668 }
669 }
670 /* print the last line */
671 burst_line[pos] = 0;
672 putsock("%s", burst_line);
673 }
674
675 void
676 irc_quit(struct userNode *user, const char *message)
677 {
678 putsock("%s " P10_QUIT " :%s", user->numeric, message);
679 }
680
681 void
682 irc_error(const char *to, const char *message)
683 {
684 if (to) {
685 putsock("%s " P10_ERROR " :%s", to, message);
686 } else {
687 putsock(":%s " P10_ERROR " :%s", self->name, message);
688 }
689 }
690
691 void
692 irc_kill(struct userNode *from, struct userNode *target, const char *message)
693 {
694 if (from) {
695 putsock("%s " P10_KILL " %s :%s!%s (%s)",
696 from->numeric, target->numeric, self->name, from->nick, message);
697 } else {
698 putsock("%s " P10_KILL " %s :%s (%s)",
699 self->numeric, target->numeric, self->name, message);
700 }
701 }
702
703 void
704 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
705 {
706 putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
707 (from ? from->numeric : self->numeric),
708 target->name, modes, target->timestamp);
709 }
710
711 void
712 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
713 {
714 putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
715 }
716
717 void
718 irc_join(struct userNode *who, struct chanNode *what)
719 {
720 if (what->members.used == 1) {
721 putsock("%s " P10_CREATE " %s %lu",
722 who->numeric, what->name, what->timestamp);
723 } else {
724 putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
725 }
726 }
727
728 void
729 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
730 {
731 const char *numeric;
732 struct modeNode *mn = GetUserMode(channel, who);
733 numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
734 putsock("%s " P10_KICK " %s %s :%s",
735 numeric, channel->name, target->numeric, msg);
736 }
737
738 void
739 irc_stats(struct userNode *from, struct server *target, char type)
740 {
741 putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
742 }
743
744 void
745 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
746 {
747 putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
748 }
749
750 void
751 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
752 {
753 if (reason) {
754 putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
755 } else {
756 putsock("%s " P10_PART " %s", who->numeric, what->name);
757 }
758 }
759
760 void
761 irc_topic(struct userNode *who, struct chanNode *what, const char *topic)
762 {
763 putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
764 }
765
766 void
767 irc_raw(const char *what)
768 {
769 putsock("%s", what);
770 }
771
772 void
773 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
774 {
775 va_list arg_list;
776 char buffer[MAXLEN];
777 va_start(arg_list, format);
778 vsnprintf(buffer, MAXLEN-2, format, arg_list);
779 buffer[MAXLEN-1] = 0;
780 putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
781 }
782
783 static void send_burst(void);
784
785 static void
786 change_nicklen(int new_nicklen)
787 {
788 unsigned int nn;
789 char new_nick[NICKLEN+1];
790 struct userNode *user;
791
792 nicklen = new_nicklen;
793 /* fix up any users we have here */
794 for (nn=0; nn<=self->num_mask; nn++) {
795 if (!(user = self->users[nn]))
796 continue;
797 safestrncpy(new_nick, user->nick, sizeof(new_nick));
798 new_nick[nicklen] = 0;
799 NickChange(user, new_nick, 1);
800 }
801 }
802
803 static CMD_FUNC(cmd_whois)
804 {
805 struct userNode *from;
806 struct userNode *who;
807
808 if (argc < 3)
809 return 0;
810 if (!(from = GetUserH(origin))) {
811 log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
812 return 0;
813 }
814 if(!(who = GetUserH(argv[2]))) {
815 irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
816 return 1;
817 }
818 if (IsHiddenHost(who) && !IsOper(from)) {
819 /* Just stay quiet. */
820 return 1;
821 }
822 irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
823 if (his_servername && his_servercomment)
824 irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
825 else
826 irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
827 if (IsOper(who))
828 irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
829 irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
830 return 1;
831 }
832
833 static CMD_FUNC(cmd_server)
834 {
835 struct server *srv;
836 const char *str;
837
838 if (argc < 8)
839 return 0;
840 if (self->uplink) {
841 /* another server introduced us */
842 srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
843 if (!srv)
844 return 0;
845 srv->self_burst = argv[5][0] == 'J';
846 srv->burst = 1;
847 } else {
848 /* this must be our uplink */
849 srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
850 if (!srv)
851 return 0;
852 srv->self_burst = argv[5][0] == 'J';
853 srv->burst = 1;
854 if ((argv[7][0] == '+') && !force_n2k) {
855 log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
856 }
857 send_burst();
858 }
859
860 /* Fix up our timestamps if necessary. */
861 if (srv->boot <= PREHISTORY) {
862 /* Server from the mists of time.. */
863 if (srv->hops == 1) {
864 log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T". This is absurd.", srv->name, srv->boot);
865 }
866 } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
867 && enabled_string(str)) {
868 /* If we have a reliable clock, we just keep our current time. */
869 } else {
870 if (srv->boot <= self->boot) {
871 /* The other server is older than us. Accept their timestamp.
872 * Alternately, we are same age, but we accept their time
873 * since we are linking to them. */
874 self->boot = srv->boot;
875 ioset_set_time(srv->link);
876 }
877 }
878 if (srv == self->uplink) {
879 extern time_t burst_begin;
880 burst_begin = now;
881 }
882 return 1;
883 }
884
885 static CMD_FUNC(cmd_eob)
886 {
887 struct server *sender;
888 dict_iterator_t it;
889 unsigned int ii;
890
891 if (!(sender = GetServerH(origin)))
892 return 0;
893 if (sender == self->uplink) {
894 cManager.uplink->state = CONNECTED;
895 for (it = dict_first(unbursted_channels); it; it = iter_next(it))
896 irc_burst(iter_data(it));
897 dict_delete(unbursted_channels);
898 unbursted_channels = NULL;
899 irc_eob();
900 irc_eob_ack();
901 }
902 sender->self_burst = 0;
903 recalc_bursts(sender);
904 for (ii=0; ii<slf_used; ii++)
905 slf_list[ii](sender);
906 return 1;
907 }
908
909 static CMD_FUNC(cmd_eob_ack)
910 {
911 extern time_t burst_begin;
912
913 if (GetServerH(origin) == self->uplink) {
914 burst_length = now - burst_begin;
915 self->self_burst = self->burst = 0;
916 }
917 cManager.uplink->state = CONNECTED;
918 return 1;
919 }
920
921 static CMD_FUNC(cmd_ping)
922 {
923 struct server *srv;
924 struct userNode *un;
925
926 if(argc > 3)
927 irc_pong(argv[2], argv[1]);
928 else if ((srv = GetServerH(origin)))
929 irc_pong(self->name, srv->numeric);
930 else if ((un = GetUserH(origin)))
931 irc_pong(self->name, un->numeric);
932 else
933 irc_pong(self->name, origin);
934
935 timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
936 timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
937 timeq_add(now + ping_freq, timed_send_ping, 0);
938 received_ping();
939 return 1;
940 }
941
942 static CMD_FUNC(cmd_error_nick)
943 {
944 /* Go back to original IRC length .. and try to reconnect :/ */
945 change_nicklen(9);
946 irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
947 return 1;
948 }
949
950 struct create_desc {
951 struct userNode *user;
952 time_t when;
953 };
954
955 static void
956 join_helper(struct chanNode *chan, void *data)
957 {
958 struct create_desc *cd = data;
959 AddChannelUser(cd->user, chan);
960 }
961
962 static void
963 create_helper(char *name, void *data)
964 {
965 struct create_desc *cd = data;
966
967 if (!strcmp(name, "0")) {
968 while (cd->user->channels.used > 0)
969 DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
970 return;
971 }
972
973 AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
974 }
975
976 static CMD_FUNC(cmd_create)
977 {
978 struct create_desc cd;
979 struct userNode *user;
980
981 if ((argc < 3) || !(user = GetUserH(origin)))
982 return 0;
983 cd.user = user;
984 cd.when = atoi(argv[2]);
985 parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
986 return 1;
987 }
988
989 static CMD_FUNC(cmd_join)
990 {
991 struct create_desc cd;
992
993 if (!(cd.user = GetUserH(origin)))
994 return 0;
995 if (argc < 2)
996 return 0;
997 else if (argc < 3)
998 cd.when = now;
999 else
1000 cd.when = atoi(argv[2]);
1001 parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1002 return 1;
1003 }
1004
1005 static CMD_FUNC(cmd_pong)
1006 {
1007 if (argc < 3)
1008 return 0;
1009 if (!strcmp(argv[2], self->name)) {
1010 timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1011 timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1012 timeq_add(now + ping_freq, timed_send_ping, 0);
1013 received_ping();
1014 }
1015 return 1;
1016 }
1017
1018 static CMD_FUNC(cmd_nick)
1019 {
1020 struct userNode *user;
1021 if ((user = GetUserH(origin))) {
1022 /* nick change (since the source is a user numeric) */
1023 if (argc < 2)
1024 return 0;
1025 NickChange(user, argv[1], 1);
1026 } else {
1027 struct server *serv;
1028 char modes[MAXLEN];
1029 /* new nick */
1030 if (argc < 9)
1031 return 0;
1032 serv = GetServerH(origin);
1033 if (argc > 9)
1034 unsplit_string(argv+6, argc-9, modes);
1035 else
1036 strcpy(modes, "+");
1037 AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1038 }
1039 return 1;
1040 }
1041
1042 static CMD_FUNC(cmd_account)
1043 {
1044 struct userNode *user;
1045
1046 if ((argc < 3) || !origin || !GetServerH(origin))
1047 return 0; /* Origin must be server. */
1048 user = GetUserN(argv[1]);
1049 if (!user)
1050 return 1; /* A QUIT probably passed the ACCOUNT. */
1051 call_account_func(user, argv[2]);
1052 return 1;
1053 }
1054
1055 static CMD_FUNC(cmd_fakehost)
1056 {
1057 struct userNode *user;
1058
1059 if ((argc < 3) || !origin || !GetServerH(origin))
1060 return 0;
1061 if (!(user = GetUserN(argv[1])))
1062 return 1;
1063 assign_fakehost(user, argv[2], 0);
1064 return 1;
1065 }
1066
1067 static CMD_FUNC(cmd_burst)
1068 {
1069 extern int rel_age;
1070 char modes[MAXLEN], *members = "";
1071 static char exemptlist[MAXLEN], banlist[MAXLEN];
1072 unsigned int next = 3, res = 1;
1073 int ctype = 0, echeck = 0, bcheck = 0;
1074 struct chanNode *cNode;
1075 struct userNode *un;
1076 struct modeNode *mNode;
1077 long mode;
1078 char *user, *end, sep;
1079 time_t in_timestamp;
1080 char* parm = NULL;
1081
1082 if (argc < 3)
1083 return 0;
1084 modes[0] = 0;
1085
1086 exemptlist[0] = 0;
1087 banlist[0] = 0;
1088
1089 while (next < argc) {
1090 switch (argv[next][0]) {
1091 case '+': {
1092 const char *pos;
1093 int n_modes;
1094 for (pos=argv[next], n_modes = 1; *pos; pos++)
1095 if ((*pos == 'k') || (*pos == 'l'))
1096 n_modes++;
1097 unsplit_string(argv+next, n_modes, modes);
1098 next += n_modes;
1099 break;
1100 }
1101 case '%': {
1102 for(parm = mysep(&argv[next], " "); /* parm = first param */
1103 parm; /* While param is not null */
1104 parm = mysep(&argv[next], " ") /* parm = next param */
1105 )
1106 {
1107 switch (parm[0]) {
1108 case '%': {
1109 ctype = 1;
1110 break;
1111 }
1112 case '~': {
1113 ctype = 2;
1114 break;
1115 }
1116 default: {
1117 break;
1118 }
1119 }
1120 if (ctype == 1) {
1121 if (bcheck == 0) {
1122 /* strip % char off start of very first ban */
1123 strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1124 strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1125 bcheck = 1;
1126 } else {
1127 strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1128 strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1129 }
1130 } else if (ctype == 2) {
1131 if (echeck == 0) {
1132 echeck = 1;
1133 } else {
1134 strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1135 strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1136 }
1137 }
1138 }
1139 next++;
1140 break;
1141 }
1142 default: members = argv[next++]; break;
1143 }
1144 }
1145
1146 in_timestamp = atoi(argv[2]);
1147 if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1148 cNode->timestamp = in_timestamp;
1149 dict_remove(unbursted_channels, cNode->name);
1150 irc_burst(cNode);
1151 }
1152 cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1153
1154 /* Burst channel members in now. */
1155 for (user = members, sep = *members, mode = 0; sep; user = end) {
1156 for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1157 sep = *end++; end[-1] = 0;
1158 if (sep == ':') {
1159 mode = 0;
1160 while ((sep = *end++)) {
1161 if (sep == 'o')
1162 mode |= MODE_CHANOP;
1163 else if (sep == 'h')
1164 mode |= MODE_HALFOP;
1165 else if (sep == 'v')
1166 mode |= MODE_VOICE;
1167 else if (isdigit(sep)) {
1168 mode |= MODE_CHANOP;
1169 while (isdigit(*end)) end++;
1170 } else
1171 break;
1172 }
1173 if (rel_age < 0)
1174 mode = 0;
1175 }
1176 if (!(un = GetUserN(user))) {
1177 res = 0;
1178 continue;
1179 }
1180 if ((mNode = AddChannelUser(un, cNode)))
1181 mNode->modes = mode;
1182 }
1183
1184 return res;
1185 }
1186
1187 static CMD_FUNC(cmd_mode)
1188 {
1189 struct chanNode *cn;
1190 struct userNode *un;
1191 char *sethost; // sethost - reed/apples
1192 int i; // sethost - reed/apples
1193
1194 if (argc < 3)
1195 return 0;
1196 if (!IsChannelName(argv[1])) {
1197 un = GetUserH(argv[1]);
1198 if (!un) {
1199 log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1200 return 0;
1201 }
1202 // sethost - reed/apples
1203 if (argc == 3)
1204 mod_usermode(un, argv[2]);
1205 else {
1206 sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1207 i = 0;
1208 while((sethost[i++] = *argv[2]++));
1209 i--;
1210 sethost[i++] = ' ';
1211 while((sethost[i++] = *argv[3]++));
1212 mod_usermode(un, sethost); // sethost - reed/apples
1213 }
1214
1215 return 1;
1216 }
1217
1218 if (!(cn = GetChannel(argv[1]))) {
1219 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1220 return 0;
1221 }
1222 if ((un = GetUserH(origin))) {
1223 struct modeNode *mn;
1224 /* Update idle time for person setting the mode */
1225 if ((mn = GetUserMode(cn, un)))
1226 mn->idle_since = now;
1227 } else {
1228 /* If it came from a server, reset timestamp to re-sync. */
1229 cn->timestamp = atoi(argv[argc-1]);
1230 }
1231
1232 return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1233 }
1234
1235 static CMD_FUNC(cmd_opmode)
1236 {
1237 struct chanNode *cn;
1238 struct userNode *un;
1239
1240 if (argc < 3)
1241 return 0;
1242
1243 if (!(cn = GetChannel(argv[1]))) {
1244 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1245 return 0;
1246 }
1247 if (!(un = GetUserH(origin))) {
1248 log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1249 return 0;
1250 }
1251 if (!IsOper(un)) {
1252 log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1253 return 0;
1254 }
1255
1256 return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1257 }
1258
1259 static int clear_chanmode(struct chanNode *channel, const char *modes);
1260
1261 static CMD_FUNC(cmd_clearmode)
1262 {
1263 struct chanNode *cn;
1264 struct userNode *un;
1265
1266 if (argc < 3)
1267 return 0;
1268
1269 if (!(cn = GetChannel(argv[1]))) {
1270 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1271 return 0;
1272 }
1273 if (!(un = GetUserH(origin))) {
1274 log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1275 return 0;
1276 }
1277 if (!IsOper(un)) {
1278 log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1279 return 0;
1280 }
1281
1282 return clear_chanmode(cn, argv[2]);
1283 }
1284
1285 static CMD_FUNC(cmd_topic)
1286 {
1287 struct chanNode *cn;
1288 time_t chan_ts, topic_ts;
1289
1290 if (argc < 3)
1291 return 0;
1292 if (!(cn = GetChannel(argv[1]))) {
1293 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1294 return 0;
1295 }
1296 if (argc >= 5) {
1297 /* Looks like an Asuka style topic burst. */
1298 chan_ts = atoi(argv[2]);
1299 topic_ts = atoi(argv[3]);
1300 } else {
1301 chan_ts = cn->timestamp;
1302 topic_ts = now;
1303 }
1304 SetChannelTopic(cn, GetUserH(origin), argv[argc-1], 0);
1305 cn->topic_time = topic_ts;
1306 return 1;
1307 }
1308
1309 static CMD_FUNC(cmd_num_topic)
1310 {
1311 struct chanNode *cn;
1312
1313 if (!argv[0])
1314 return 0; /* huh? */
1315 if (argv[2]) {
1316 cn = GetChannel(argv[2]);
1317 if (!cn) {
1318 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1319 return 0;
1320 }
1321 } else
1322 return 0;
1323
1324 switch (atoi(argv[0])) {
1325 case 331:
1326 cn->topic_time = 0;
1327 break; /* no topic */
1328 case 332:
1329 if (argc < 4)
1330 return 0;
1331 safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1332 break;
1333 case 333:
1334 if (argc < 5)
1335 return 0;
1336 safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1337 cn->topic_time = atoi(argv[4]);
1338 break;
1339 default:
1340 return 0; /* should never happen */
1341 }
1342 return 1;
1343 }
1344
1345 static CMD_FUNC(cmd_num_gline)
1346 {
1347 if (argc < 6)
1348 return 0;
1349 gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1350 return 1;
1351 }
1352
1353 static CMD_FUNC(cmd_quit)
1354 {
1355 struct userNode *user;
1356 if (argc < 2)
1357 return 0;
1358 /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1359 * call DelUser unless we have the user in our grasp. */
1360 if ((user = GetUserH(origin)))
1361 DelUser(user, NULL, false, argv[1]);
1362 return 1;
1363 }
1364
1365 static CMD_FUNC(cmd_kill)
1366 {
1367 struct userNode *user;
1368 if (argc < 2)
1369 return 0;
1370 user = GetUserN(argv[1]);
1371 if (!user) {
1372 /* If we get a KILL for a non-existent user, it could be a
1373 * Ghost response to a KILL we sent out earlier. So we only
1374 * whine if the target is local.
1375 */
1376 if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1377 log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1378 return 0;
1379 }
1380
1381 if (IsLocal(user) && IsService(user)) {
1382 /* TODO: rate limit this so silly things don't happen. */
1383 ReintroduceUser(user);
1384 return 1;
1385 }
1386
1387 DelUser(user, NULL, false, argv[2]);
1388 return 1;
1389 }
1390
1391 static CMD_FUNC(cmd_part)
1392 {
1393 struct userNode *user;
1394
1395 if (argc < 2)
1396 return 0;
1397 user = GetUserH(origin);
1398 if (!user)
1399 return 0;
1400 parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1401 return 1;
1402 }
1403
1404 static CMD_FUNC(cmd_kick)
1405 {
1406 if (argc < 3)
1407 return 0;
1408 ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1409 return 1;
1410 }
1411
1412 static CMD_FUNC(cmd_squit)
1413 {
1414 struct server *server;
1415
1416 if (argc < 4)
1417 return 0;
1418 if (!(server = GetServerH(argv[1])))
1419 return 0;
1420
1421 if (server == self->uplink) {
1422 /* Force a reconnect to the currently selected server. */
1423 cManager.uplink->tries = 0;
1424 log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1425 close_socket();
1426 return 1;
1427 }
1428
1429 DelServer(server, 0, argv[3]);
1430 return 1;
1431 }
1432
1433 static CMD_FUNC(cmd_privmsg)
1434 {
1435 struct privmsg_desc pd;
1436 if (argc != 3)
1437 return 0;
1438 pd.user = GetUserH(origin);
1439 if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1440 return 1;
1441 pd.is_notice = 0;
1442 pd.text = argv[2];
1443 parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1444 return 1;
1445 }
1446
1447 static CMD_FUNC(cmd_notice)
1448 {
1449 struct privmsg_desc pd;
1450 if (argc != 3)
1451 return 0;
1452 pd.user = GetUserH(origin);
1453 if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1454 return 1;
1455 pd.is_notice = 1;
1456 pd.text = argv[2];
1457 parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1458 return 1;
1459 }
1460
1461 static CMD_FUNC(cmd_away)
1462 {
1463 struct userNode *uNode;
1464
1465 uNode = GetUserH(origin);
1466 if (!uNode)
1467 return 1;
1468 if (argc < 2)
1469 uNode->modes &= ~FLAGS_AWAY;
1470 else
1471 uNode->modes |= FLAGS_AWAY;
1472 return 1;
1473 }
1474
1475 static CMD_FUNC(cmd_gline)
1476 {
1477 if (argc < 3)
1478 return 0;
1479 if (argv[2][0] == '+') {
1480 if (argc < 5)
1481 return 0;
1482 gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1483 return 1;
1484 } else if (argv[2][0] == '-') {
1485 gline_remove(argv[2]+1, 0);
1486 return 1;
1487 } else
1488 return 0;
1489 }
1490
1491 static CMD_FUNC(cmd_svsnick)
1492 {
1493 struct userNode *target, *dest;
1494 if ((argc < 4)
1495 || !(target = GetUserN(argv[1]))
1496 || !IsLocal(target)
1497 || (dest = GetUserH(argv[2])))
1498 return 0;
1499 NickChange(target, argv[2], 0);
1500 return 1;
1501 }
1502
1503 static oper_func_t *of_list;
1504 static unsigned int of_size = 0, of_used = 0;
1505
1506 void
1507 free_user(struct userNode *user)
1508 {
1509 free(user->nick);
1510 free(user);
1511 }
1512
1513 static void
1514 parse_cleanup(void)
1515 {
1516 unsigned int nn;
1517 free(of_list);
1518 free(privmsg_funcs);
1519 free(notice_funcs);
1520 free(mcf_list);
1521 dict_delete(irc_func_dict);
1522 for (nn=0; nn<dead_users.used; nn++)
1523 free_user(dead_users.list[nn]);
1524 userList_clean(&dead_users);
1525 }
1526
1527 static void
1528 p10_conf_reload(void) {
1529 hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1530 }
1531
1532 static void
1533 remove_unbursted_channel(struct chanNode *cNode) {
1534 if (unbursted_channels)
1535 dict_remove(unbursted_channels, cNode->name);
1536 }
1537
1538 void
1539 init_parse(void)
1540 {
1541 const char *str, *desc;
1542 int numnick, usermask, max_users;
1543 char numer[COMBO_NUMERIC_LEN+1];
1544
1545 /* read config items */
1546 str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1547 ping_freq = str ? ParseInterval(str) : 120;
1548 str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1549 ping_timeout = str ? ParseInterval(str) : 30;
1550 str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1551 force_n2k = str ? enabled_string(str) : 1;
1552 str = conf_get_data("server/numeric", RECDB_QSTRING);
1553 if (!str) {
1554 log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1555 exit(1);
1556 }
1557 numnick = atoi(str);
1558 str = conf_get_data("server/max_users", RECDB_QSTRING);
1559 max_users = str ? atoi(str) : 4096;
1560 for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1561 usermask--;
1562 if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1563 inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1564 else
1565 inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1566
1567 str = conf_get_data("server/his_servername", RECDB_QSTRING);
1568 his_servername = str ? strdup(str) : NULL;
1569 str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1570 his_servercomment = str ? strdup(str) : NULL;
1571
1572 str = conf_get_data("server/hostname", RECDB_QSTRING);
1573 desc = conf_get_data("server/description", RECDB_QSTRING);
1574 if (!str || !desc) {
1575 log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1576 exit(1);
1577 }
1578 self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1579 conf_register_reload(p10_conf_reload);
1580
1581 irc_func_dict = dict_new();
1582 dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1583 dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1584 dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1585 dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1586 dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1587 dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1588 dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1589 dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1590 dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1591 dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1592 dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1593 dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1594 dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1595 dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1596 dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1597 dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1598 dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1599 dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1600 dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1601 dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1602 dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1603 dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1604 dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1605 dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1606 dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1607 dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1608 dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1609 dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1610 dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1611 dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1612 dict_insert(irc_func_dict, CMD_PART, cmd_part);
1613 dict_insert(irc_func_dict, TOK_PART, cmd_part);
1614 dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1615 dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1616 dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1617 dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1618 dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1619 dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1620 dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1621 dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1622 dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1623 dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1624 dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1625 dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1626 dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1627 dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1628 dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1629 dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1630 dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1631 dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1632 dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1633 dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1634 dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1635 dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1636 dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1637 dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1638 dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1639 dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1640 dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1641 dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1642 dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1643 dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1644 dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1645 dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1646
1647 /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1648 * Apparently to obliterate channels from any servers that think they
1649 * exist?
1650 */
1651 dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1652 dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1653 /* Ignore invites */
1654 dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1655 dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1656 /* DESYNCH is just informational, so ignore it */
1657 dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1658 dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1659 /* Ignore channel operator notices. */
1660 dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1661 dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1662 dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1663 dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
1664 dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1665 dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1666 /* Ignore opers being silly. */
1667 dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1668 dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
1669 dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1670 dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1671 /* We have reliable clock! Always! Wraaa! */
1672 dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1673 dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1674 /* handle topics */
1675 dict_insert(irc_func_dict, "331", cmd_num_topic);
1676 dict_insert(irc_func_dict, "332", cmd_num_topic);
1677 dict_insert(irc_func_dict, "333", cmd_num_topic);
1678 dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1679 dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1680 /* ban list resetting */
1681 /* "stats g" responses */
1682 dict_insert(irc_func_dict, "247", cmd_num_gline);
1683 dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1684 /* other numeric responses we might get */
1685 dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1686 dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1687 dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1688 dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1689 dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1690 dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1691 dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1692 dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1693
1694 num_privmsg_funcs = 16;
1695 privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1696 memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1697
1698 num_notice_funcs = 16;
1699 notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1700 memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1701
1702 userList_init(&dead_users);
1703 reg_del_channel_func(remove_unbursted_channel);
1704 reg_exit_func(parse_cleanup);
1705 }
1706
1707 int
1708 parse_line(char *line, int recursive)
1709 {
1710 char *argv[MAXNUMPARAMS], *origin;
1711 int argc, cmd, res=0;
1712 cmd_func_t *func;
1713
1714 argc = split_line(line, true, MAXNUMPARAMS, argv);
1715 cmd = self->uplink || !argv[0][1] || !argv[0][2];
1716 if (argc > cmd) {
1717 if (cmd) {
1718 if (argv[0][0] == ':') {
1719 origin = argv[0]+1;
1720 } else if (!argv[0][1] || !argv[0][2]) {
1721 struct server *sNode = GetServerN(argv[0]);
1722 origin = sNode ? sNode->name : 0;
1723 } else {
1724 struct userNode *uNode = GetUserN(argv[0]);
1725 origin = uNode ? uNode->nick : 0;
1726 }
1727 } else
1728 origin = 0;
1729 if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1730 res = func(origin, argc-cmd, argv+cmd);
1731 }
1732 if (!res) {
1733 log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1734 } else if (!recursive) {
1735 unsigned int i;
1736 for (i=0; i<dead_users.used; i++)
1737 free_user(dead_users.list[i]);
1738 dead_users.used = 0;
1739 }
1740 return res;
1741 }
1742
1743 static void
1744 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1745 {
1746 char *j, old;
1747 do {
1748 j = target_list;
1749 while (*j != 0 && *j != ',')
1750 j++;
1751 old = *j;
1752 *j = 0;
1753 if (IsChannelName(target_list)
1754 || (target_list[0] == '0' && target_list[1] == '\0')) {
1755 struct chanNode *chan = GetChannel(target_list);
1756 if (chan) {
1757 if (cf)
1758 cf(chan, data);
1759 } else {
1760 if (nc)
1761 nc(target_list, data);
1762 }
1763 } else {
1764 struct userNode *user;
1765 struct privmsg_desc *pd = data;
1766
1767 pd->is_qualified = 0;
1768 if (*target_list == '@') {
1769 user = NULL;
1770 } else if (strchr(target_list, '@')) {
1771 struct server *server;
1772
1773 pd->is_qualified = 1;
1774 user = GetUserH(strtok(target_list, "@"));
1775 server = GetServerH(strtok(NULL, "@"));
1776
1777 if (user && (user->uplink != server)) {
1778 /* Don't attempt to index into any arrays
1779 using a user's numeric on another server. */
1780 user = NULL;
1781 }
1782 } else {
1783 user = GetUserN(target_list);
1784 }
1785
1786 if (user) {
1787 if (uf)
1788 uf(user, data);
1789 } else {
1790 if (nu)
1791 nu(target_list, data);
1792 }
1793 }
1794 target_list = j+1;
1795 } while (old == ',');
1796 }
1797
1798 static int
1799 get_local_numeric(void)
1800 {
1801 static unsigned int next_numeric = 0;
1802 if (self->clients > self->num_mask)
1803 return -1;
1804 while (self->users[next_numeric])
1805 if (++next_numeric > self->num_mask)
1806 next_numeric = 0;
1807 return next_numeric;
1808 }
1809
1810 static void
1811 make_numeric(struct server *svr, int local_num, char *outbuf)
1812 {
1813 int slen, llen;
1814
1815 if (force_n2k || svr->numeric[1]) {
1816 slen = 2;
1817 llen = 3;
1818 } else {
1819 slen = 1;
1820 llen = (local_num < 64*64) ? 2 : 3;
1821 }
1822 strncpy(outbuf, svr->numeric, slen);
1823 inttobase64(outbuf+slen, local_num, llen);
1824 outbuf[slen+llen] = 0;
1825 }
1826
1827 struct server *
1828 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
1829 {
1830 struct server* sNode;
1831 int slen, mlen;
1832
1833 if ((sNode = GetServerN(numeric))) {
1834 /* This means we're trying to re-add an existant server.
1835 * To be safe, we should forget the previous incarnation.
1836 * (And all its linked servers.)
1837 *
1838 * It usually only happens in replays when the original
1839 * had a ping timeout and the replay didn't (because
1840 * replaying a ping timeout invariably gets things wrong).
1841 */
1842 DelServer(sNode, 0, NULL);
1843 }
1844
1845 switch (strlen(numeric)) {
1846 case 5: slen = 2; mlen = 3; break;
1847 case 4: slen = 1; mlen = 3; break;
1848 case 3: slen = 1; mlen = 2; break;
1849 default:
1850 log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
1851 return NULL;
1852 }
1853
1854 sNode = calloc(1, sizeof(*sNode));
1855 sNode->uplink = uplink;
1856 safestrncpy(sNode->name, name, sizeof(sNode->name));
1857 sNode->num_mask = base64toint(numeric+slen, mlen);
1858 sNode->hops = hops;
1859 sNode->boot = boot;
1860 sNode->link = link;
1861 strncpy(sNode->numeric, numeric, slen);
1862 safestrncpy(sNode->description, description, sizeof(sNode->description));
1863 sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
1864 serverList_init(&sNode->children);
1865 if (sNode->uplink) {
1866 /* uplink may be NULL if we're just building ourself */
1867 serverList_append(&sNode->uplink->children, sNode);
1868 }
1869 servers_num[base64toint(numeric, slen)] = sNode;
1870 dict_insert(servers, sNode->name, sNode);
1871 return sNode;
1872 }
1873
1874 void DelServer(struct server* serv, int announce, const char *message)
1875 {
1876 unsigned int i;
1877
1878 /* If we receive an ERROR command before the SERVER
1879 * command a NULL server can be passed */
1880 if (!serv)
1881 return;
1882
1883 /* Hrm, what's the right way to SQUIT some other server?
1884 * (This code is only to handle killing juped servers.) */
1885 if (announce && (serv->uplink == self) && (serv != self->uplink))
1886 irc_squit(serv, message, NULL);
1887
1888 /* must recursively remove servers linked to this one first */
1889 for (i=serv->children.used;i>0;)
1890 if (serv->children.list[--i] != self)
1891 DelServer(serv->children.list[i], false, NULL);
1892
1893 /* clean up server's user hash tables */
1894 for (i=0;i<=serv->num_mask;i++)
1895 if (serv->users[i])
1896 DelUser(serv->users[i], NULL, false, "server delinked");
1897
1898 /* delete server */
1899 if (serv->uplink)
1900 serverList_remove(&serv->uplink->children, serv);
1901 if (serv == self->uplink)
1902 self->uplink = NULL;
1903 servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
1904 dict_remove(servers, serv->name);
1905 serverList_clean(&serv->children);
1906 free(serv->users);
1907 free(serv);
1908 }
1909
1910 struct userNode *
1911 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
1912 {
1913 char numeric[COMBO_NUMERIC_LEN+1];
1914 int local_num = get_local_numeric();
1915 time_t timestamp = now;
1916 struct userNode *old_user = GetUserH(nick);
1917
1918 if (old_user) {
1919 if (IsLocal(old_user))
1920 return old_user;
1921 timestamp = old_user->timestamp - 1;
1922 }
1923 if (local_num == -1) {
1924 log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
1925 return 0;
1926 }
1927 if (!hostname)
1928 hostname = self->name;
1929 make_numeric(self, local_num, numeric);
1930 return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
1931 }
1932
1933 struct userNode *
1934 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
1935 {
1936 char numeric[COMBO_NUMERIC_LEN+1];
1937 int local_num = get_local_numeric();
1938 time_t timestamp = now;
1939 struct userNode *old_user = GetUserH(nick);
1940
1941 if (old_user) {
1942 if (IsLocal(old_user))
1943 return old_user;
1944 timestamp = old_user->timestamp - 1;
1945 }
1946 if (local_num == -1) {
1947 log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
1948 return 0;
1949 }
1950 make_numeric(self, local_num, numeric);
1951 return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
1952 }
1953
1954 int
1955 is_valid_nick(const char *nick) {
1956 /* IRC has some of The Most Fucked-Up ideas about character sets
1957 * in the world.. */
1958 if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
1959 return 0;
1960 for (++nick; *nick; ++nick)
1961 if (!isalnum(*nick) && !strchr("{|}~[\\]^-_`", *nick))
1962 return 0;
1963 if (strlen(nick) > nicklen)
1964 return 0;
1965 return 1;
1966 }
1967
1968 static struct userNode*
1969 AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip)
1970 {
1971 struct userNode *oldUser, *uNode;
1972 unsigned int n, ignore_user;
1973
1974 if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
1975 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
1976 return NULL;
1977 }
1978
1979 if (!uplink) {
1980 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
1981 return NULL;
1982 }
1983
1984 if (uplink != GetServerN(numeric)) {
1985 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
1986 return NULL;
1987 }
1988
1989 if (!is_valid_nick(nick)) {
1990 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
1991 return NULL;
1992 }
1993
1994 ignore_user = 0;
1995 if ((oldUser = GetUserH(nick))) {
1996 if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
1997 /* The service should collide the new user off. */
1998 oldUser->timestamp = timestamp - 1;
1999 irc_user(oldUser);
2000 }
2001 if (oldUser->timestamp > timestamp) {
2002 /* "Old" user is really newer; remove them */
2003 DelUser(oldUser, 0, 1, "Overruled by older nick");
2004 } else {
2005 /* User being added is too new; do not add them to
2006 * clients, but do add them to the server's list, since it
2007 * will send a KILL and QUIT soon. */
2008 ignore_user = 1;
2009 }
2010 }
2011
2012 /* create new usernode and set all values */
2013 uNode = calloc(1, sizeof(*uNode));
2014 uNode->nick = strdup(nick);
2015 safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2016 safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2017 safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2018 safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2019 uNode->ip.s_addr = htonl(base64toint(realip, 6));
2020 uNode->timestamp = timestamp;
2021 modeList_init(&uNode->channels);
2022 uNode->uplink = uplink;
2023 if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2024 uNode->uplink->max_clients = uNode->uplink->clients;
2025 }
2026 uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2027 uNode->uplink->users[uNode->num_local] = uNode;
2028 mod_usermode(uNode, modes);
2029 if (ignore_user)
2030 return uNode;
2031
2032 dict_insert(clients, uNode->nick, uNode);
2033 if (dict_size(clients) > max_clients) {
2034 max_clients = dict_size(clients);
2035 max_clients_time = now;
2036 }
2037 if (IsLocal(uNode))
2038 irc_user(uNode);
2039 for (n=0; n<nuf_used; n++)
2040 if (nuf_list[n](uNode))
2041 break;
2042 return uNode;
2043 }
2044
2045 /* removes user from it's server's hash table and nick hash table */
2046 void
2047 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2048 {
2049 unsigned int n;
2050
2051 /* mark them as dead, in case anybody cares */
2052 user->dead = 1;
2053
2054 /* remove user from all channels */
2055 while (user->channels.used > 0)
2056 DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2057
2058 /* Call these in reverse order so ChanServ can update presence
2059 information before NickServ nukes the handle_info. */
2060 for (n = duf_used; n > 0; )
2061 duf_list[--n](user, killer, why);
2062
2063 user->uplink->clients--;
2064 user->uplink->users[user->num_local] = NULL;
2065 if (IsOper(user))
2066 userList_remove(&curr_opers, user);
2067 /* remove from global dictionary, but not if after a collide */
2068 if (user == dict_find(clients, user->nick, NULL))
2069 dict_remove(clients, user->nick);
2070
2071 if (IsInvisible(user))
2072 invis_clients--;
2073
2074 if (announce) {
2075 if (IsLocal(user))
2076 irc_quit(user, why);
2077 else
2078 irc_kill(killer, user, why);
2079 }
2080
2081 modeList_clean(&user->channels);
2082 /* We don't free them, in case we try to privmsg them or something
2083 * (like when a stupid oper kills themself). We just put them onto
2084 * a list of clients that get freed after processing each line.
2085 */
2086 if (dead_users.size)
2087 userList_append(&dead_users, user);
2088 else
2089 free_user(user);
2090 }
2091
2092 void mod_usermode(struct userNode *user, const char *mode_change) {
2093 static void call_oper_funcs(struct userNode *user);
2094 int add = 1;
2095 const char *word = mode_change;
2096
2097 if (!user || !mode_change)
2098 return;
2099 while (*word != ' ' && *word) word++;
2100 while (*word == ' ') word++;
2101 while (1) {
2102 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2103 switch (*mode_change++) {
2104 case 0: case ' ': return;
2105 case '+': add = 1; break;
2106 case '-': add = 0; break;
2107 case 'o':
2108 do_user_mode(FLAGS_OPER);
2109 if (add) {
2110 userList_append(&curr_opers, user);
2111 call_oper_funcs(user);
2112 } else {
2113 userList_remove(&curr_opers, user);
2114 }
2115 break;
2116 case 'O': do_user_mode(FLAGS_LOCOP); break;
2117 case 'i': do_user_mode(FLAGS_INVISIBLE);
2118 if (add)
2119 invis_clients++;
2120 else
2121 invis_clients--;
2122 break;
2123 case 'w': do_user_mode(FLAGS_WALLOP); break;
2124 case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2125 case 'd': do_user_mode(FLAGS_DEAF); break;
2126 case 'k': do_user_mode(FLAGS_SERVICE); break;
2127 case 'g': do_user_mode(FLAGS_GLOBAL); break;
2128 // sethost - reed/apples
2129 // case 'h': do_user_mode(FLAGS_HELPER); break;
2130 // I check if there's an 'h' in the first part, and if there,
2131 // then everything after the space becomes their new host.
2132 case 'h': do_user_mode(FLAGS_SETHOST);
2133 if (*word) {
2134 char sethost[MAXLEN];
2135 unsigned int ii;
2136 for (ii=0; (*word != ' ') && (*word != '\0'); )
2137 sethost[ii++] = *word++;
2138 sethost[ii] = 0;
2139 while (*word == ' ')
2140 word++;
2141 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2142 }
2143 break;
2144 case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2145 case 'r':
2146 if (*word) {
2147 char tag[MAXLEN];
2148 unsigned int ii;
2149 for (ii=0; (*word != ' ') && (*word != '\0'); )
2150 tag[ii++] = *word++;
2151 tag[ii] = 0;
2152 while (*word == ' ')
2153 word++;
2154 call_account_func(user, tag);
2155 }
2156 break;
2157 case 'f':
2158 if (*word) {
2159 char host[MAXLEN];
2160 unsigned int ii;
2161 for (ii=0; (*word != ' ') && (*word != '\0'); )
2162 host[ii++] = *word++;
2163 host[ii] = 0;
2164 while (*word == ' ')
2165 word++;
2166 assign_fakehost(user, host, 0);
2167 }
2168 break;
2169 }
2170 #undef do_user_mode
2171 }
2172 }
2173
2174 struct mod_chanmode *
2175 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
2176 {
2177 struct mod_chanmode *change;
2178 unsigned int ii, in_arg, ch_arg, add;
2179
2180 if (argc == 0)
2181 return NULL;
2182 if (!(change = mod_chanmode_alloc(argc - 1)))
2183 return NULL;
2184
2185 for (ii = ch_arg = 0, in_arg = add = 1;
2186 (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2187 ++ii) {
2188 switch (modes[0][ii]) {
2189 case '+':
2190 add = 1;
2191 break;
2192 case '-':
2193 add = 0;
2194 break;
2195 #define do_chan_mode(FLAG) do { if (add) change->modes_set |= (FLAG), change->modes_clear &= ~(FLAG); else change->modes_clear |= (FLAG), change->modes_set &= ~(FLAG); } while(0)
2196 case 'C': do_chan_mode(MODE_NOCTCPS); break;
2197 case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2198 case 'c': do_chan_mode(MODE_NOCOLORS); break;
2199 case 'i': do_chan_mode(MODE_INVITEONLY); break;
2200 case 'm': do_chan_mode(MODE_MODERATED); break;
2201 case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2202 case 'p': do_chan_mode(MODE_PRIVATE); break;
2203 case 'r': do_chan_mode(MODE_REGONLY); break;
2204 case 's': do_chan_mode(MODE_SECRET); break;
2205 case 't': do_chan_mode(MODE_TOPICLIMIT); break;
2206 case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2207 case 'M': do_chan_mode(MODE_MODUNREG); break;
2208 case 'N': do_chan_mode(MODE_NONOTICE); break;
2209 case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2210 case 'T': do_chan_mode(MODE_NOAMSG); break;
2211 case 'O': do_chan_mode(MODE_OPERSONLY); break;
2212 // uncomment this when ssl is enabled on the network.
2213 // case 'z': do_chan_mode(MODE_SSLONLY); break;
2214 #undef do_chan_mode
2215 case 'l':
2216 if (add) {
2217 if (in_arg >= argc)
2218 goto error;
2219 change->modes_set |= MODE_LIMIT;
2220 change->new_limit = atoi(modes[in_arg++]);
2221 } else {
2222 change->modes_set &= ~MODE_LIMIT;
2223 change->modes_clear |= MODE_LIMIT;
2224 }
2225 break;
2226 case 'k':
2227 if (add) {
2228 if (in_arg >= argc)
2229 goto error;
2230 change->modes_set |= MODE_KEY;
2231 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2232 } else {
2233 change->modes_clear |= MODE_KEY;
2234 if (!(flags & MCP_KEY_FREE)) {
2235 if (in_arg >= argc)
2236 goto error;
2237 in_arg++;
2238 }
2239 }
2240 break;
2241 case 'b':
2242 if (!(flags & MCP_ALLOW_OVB))
2243 goto error;
2244 if (in_arg >= argc)
2245 goto error;
2246 change->args[ch_arg].mode = MODE_BAN;
2247 if (!add)
2248 change->args[ch_arg].mode |= MODE_REMOVE;
2249 change->args[ch_arg++].u.hostmask = modes[in_arg++];
2250 break;
2251 case 'e':
2252 if (!(flags & MCP_ALLOW_OVB))
2253 goto error;
2254 if (in_arg >= argc)
2255 goto error;
2256 change->args[ch_arg].mode = MODE_EXEMPT;
2257 if (!add)
2258 change->args[ch_arg].mode |= MODE_REMOVE;
2259 change->args[ch_arg++].u.hostmask = modes[in_arg++];
2260 break;
2261 case 'o': case 'h': case 'v':
2262 {
2263 struct userNode *victim;
2264 if (!(flags & MCP_ALLOW_OVB))
2265 goto error;
2266 if (in_arg >= argc)
2267 goto error;
2268
2269 if (modes[0][ii] == 'o')
2270 change->args[ch_arg].mode = MODE_CHANOP;
2271 else if (modes[0][ii] == 'h')
2272 change->args[ch_arg].mode = MODE_HALFOP;
2273 else if (modes[0][ii] == 'v')
2274 change->args[ch_arg].mode = MODE_VOICE;
2275
2276 if (!add)
2277 change->args[ch_arg].mode |= MODE_REMOVE;
2278 if (flags & MCP_FROM_SERVER)
2279 victim = GetUserN(modes[in_arg++]);
2280 else
2281 victim = GetUserH(modes[in_arg++]);
2282 if (!victim)
2283 continue;
2284 if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
2285 ch_arg++;
2286 break;
2287 }
2288 default:
2289 if (!(flags & MCP_FROM_SERVER))
2290 goto error;
2291 break;
2292 }
2293 }
2294 change->argc = ch_arg; /* in case any turned out to be ignored */
2295 if (change->modes_set & MODE_SECRET) {
2296 change->modes_set &= ~(MODE_PRIVATE);
2297 change->modes_clear |= MODE_PRIVATE;
2298 } else if (change->modes_set & MODE_PRIVATE) {
2299 change->modes_set &= ~(MODE_SECRET);
2300 change->modes_clear |= MODE_SECRET;
2301 }
2302 return change;
2303 error:
2304 mod_chanmode_free(change);
2305 return NULL;
2306 }
2307
2308 struct chanmode_buffer {
2309 char modes[MAXLEN];
2310 char args[MAXLEN];
2311 struct chanNode *channel;
2312 struct userNode *actor;
2313 unsigned int modes_used;
2314 unsigned int args_used;
2315 size_t chname_len;
2316 unsigned int is_add : 1;
2317 unsigned int is_chanop : 1;
2318 };
2319
2320 static void
2321 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2322 {
2323 size_t arg_len = strlen(arg);
2324 if (buf->modes_used > (MAXMODEPARAMS) ||
2325 buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2326 memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2327 buf->modes[buf->modes_used + buf->args_used] = '\0';
2328 irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2329 buf->modes[0] = buf->is_add ? '+' : '-';
2330 buf->modes_used = 1;
2331 buf->args_used = 0;
2332 }
2333 buf->modes[buf->modes_used++] = ch;
2334 buf->args[buf->args_used++] = ' ';
2335 memcpy(buf->args + buf->args_used, arg, arg_len);
2336 buf->args_used += arg_len;
2337 }
2338
2339 void
2340 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2341 {
2342 struct chanmode_buffer chbuf;
2343 unsigned int arg;
2344 struct modeNode *mn;
2345 char int_buff[32], mode = '\0';
2346
2347 assert(change->argc <= change->alloc_argc);
2348 memset(&chbuf, 0, sizeof(chbuf));
2349 chbuf.channel = channel;
2350 chbuf.actor = who;
2351 chbuf.chname_len = strlen(channel->name);
2352
2353 mn = GetUserMode(channel, who);
2354 if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2355 chbuf.is_chanop = 1;
2356
2357 /* First remove modes */
2358 chbuf.is_add = 0;
2359 if (change->modes_clear) {
2360 if (mode != '-')
2361 chbuf.modes[chbuf.modes_used++] = mode = '-';
2362 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2363 DO_MODE_CHAR(PRIVATE, 'p');
2364 DO_MODE_CHAR(SECRET, 's');
2365 DO_MODE_CHAR(MODERATED, 'm');
2366 DO_MODE_CHAR(TOPICLIMIT, 't');
2367 DO_MODE_CHAR(INVITEONLY, 'i');
2368 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2369 DO_MODE_CHAR(LIMIT, 'l');
2370 DO_MODE_CHAR(DELAYJOINS, 'D');
2371 DO_MODE_CHAR(REGONLY, 'r');
2372 DO_MODE_CHAR(NOCOLORS, 'c');
2373 DO_MODE_CHAR(NOCTCPS, 'C');
2374 DO_MODE_CHAR(STRIPCOLOR, 'S');
2375 DO_MODE_CHAR(MODUNREG, 'M');
2376 DO_MODE_CHAR(NONOTICE, 'N');
2377 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2378 DO_MODE_CHAR(NOAMSG, 'T');
2379 DO_MODE_CHAR(OPERSONLY, 'O');
2380 // uncomment this for ssl support
2381 //DO_MODE_CHAR(SSLONLY, 'z');
2382 #undef DO_MODE_CHAR
2383 if (change->modes_clear & channel->modes & MODE_KEY)
2384 mod_chanmode_append(&chbuf, 'k', channel->key);
2385 }
2386 for (arg = 0; arg < change->argc; ++arg) {
2387 if (!(change->args[arg].mode & MODE_REMOVE))
2388 continue;
2389 if (mode != '-')
2390 chbuf.modes[chbuf.modes_used++] = mode = '-';
2391 switch (change->args[arg].mode & ~MODE_REMOVE) {
2392 case MODE_BAN:
2393 mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2394 break;
2395 case MODE_EXEMPT:
2396 mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2397 break;
2398 default:
2399 if (change->args[arg].mode & MODE_CHANOP)
2400 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2401 if (change->args[arg].mode & MODE_HALFOP)
2402 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2403 if (change->args[arg].mode & MODE_VOICE)
2404 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2405 break;
2406 }
2407 }
2408
2409 /* Then set them */
2410 chbuf.is_add = 1;
2411 if (change->modes_set) {
2412 if (mode != '+')
2413 chbuf.modes[chbuf.modes_used++] = mode = '+';
2414 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2415 DO_MODE_CHAR(PRIVATE, 'p');
2416 DO_MODE_CHAR(SECRET, 's');
2417 DO_MODE_CHAR(MODERATED, 'm');
2418 DO_MODE_CHAR(TOPICLIMIT, 't');
2419 DO_MODE_CHAR(INVITEONLY, 'i');
2420 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2421 DO_MODE_CHAR(DELAYJOINS, 'D');
2422 DO_MODE_CHAR(REGONLY, 'r');
2423 DO_MODE_CHAR(NOCOLORS, 'c');
2424 DO_MODE_CHAR(NOCTCPS, 'C');
2425 DO_MODE_CHAR(STRIPCOLOR, 'S');
2426 DO_MODE_CHAR(MODUNREG, 'M');
2427 DO_MODE_CHAR(NONOTICE, 'N');
2428 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2429 DO_MODE_CHAR(NOAMSG, 'T');
2430 DO_MODE_CHAR(OPERSONLY, 'O');
2431 // uncomment this for ssl support
2432 //DO_MODE_CHAR(SSLONLY, 'z');
2433 #undef DO_MODE_CHAR
2434 if(change->modes_set & MODE_KEY)
2435 mod_chanmode_append(&chbuf, 'k', change->new_key);
2436 if(change->modes_set & MODE_LIMIT) {
2437 sprintf(int_buff, "%d", change->new_limit);
2438 mod_chanmode_append(&chbuf, 'l', int_buff);
2439 }
2440 }
2441 for (arg = 0; arg < change->argc; ++arg) {
2442 if (change->args[arg].mode & MODE_REMOVE)
2443 continue;
2444 if (mode != '+')
2445 chbuf.modes[chbuf.modes_used++] = mode = '+';
2446 switch (change->args[arg].mode) {
2447 case MODE_BAN:
2448 mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2449 break;
2450 case MODE_EXEMPT:
2451 mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2452 break;
2453 default:
2454 if (change->args[arg].mode & MODE_CHANOP)
2455 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2456 if (change->args[arg].mode & MODE_HALFOP)
2457 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2458 if (change->args[arg].mode & MODE_VOICE)
2459 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2460 break;
2461 }
2462 }
2463
2464 /* Flush the buffer and apply changes locally */
2465 if (chbuf.modes_used > 0) {
2466 memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2467 chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2468 irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2469 }
2470 mod_chanmode_apply(who, channel, change);
2471 }
2472
2473 char *
2474 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2475 {
2476 unsigned int used = 0;
2477 assert(change->argc <= change->alloc_argc);
2478 if (change->modes_clear) {
2479 outbuff[used++] = '-';
2480 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2481 DO_MODE_CHAR(PRIVATE, 'p');
2482 DO_MODE_CHAR(SECRET, 's');
2483 DO_MODE_CHAR(MODERATED, 'm');
2484 DO_MODE_CHAR(TOPICLIMIT, 't');
2485 DO_MODE_CHAR(INVITEONLY, 'i');
2486 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2487 DO_MODE_CHAR(LIMIT, 'l');
2488 DO_MODE_CHAR(KEY, 'k');
2489 DO_MODE_CHAR(DELAYJOINS, 'D');
2490 DO_MODE_CHAR(REGONLY, 'r');
2491 DO_MODE_CHAR(NOCOLORS, 'c');
2492 DO_MODE_CHAR(NOCTCPS, 'C');
2493 DO_MODE_CHAR(STRIPCOLOR, 'S');
2494 DO_MODE_CHAR(MODUNREG, 'M');
2495 DO_MODE_CHAR(NONOTICE, 'N');
2496 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2497 DO_MODE_CHAR(NOAMSG, 'T');
2498 DO_MODE_CHAR(OPERSONLY, 'O');
2499 // uncomment this for ssl support
2500 //DO_MODE_CHAR(SSLONLY, 'z');
2501 #undef DO_MODE_CHAR
2502 }
2503 if (change->modes_set) {
2504 outbuff[used++] = '+';
2505 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2506 DO_MODE_CHAR(PRIVATE, 'p');
2507 DO_MODE_CHAR(SECRET, 's');
2508 DO_MODE_CHAR(MODERATED, 'm');
2509 DO_MODE_CHAR(TOPICLIMIT, 't');
2510 DO_MODE_CHAR(INVITEONLY, 'i');
2511 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2512 DO_MODE_CHAR(DELAYJOINS, 'D');
2513 DO_MODE_CHAR(REGONLY, 'r');
2514 DO_MODE_CHAR(NOCOLORS, 'c');
2515 DO_MODE_CHAR(NOCTCPS, 'C');
2516 DO_MODE_CHAR(STRIPCOLOR, 'S');
2517 DO_MODE_CHAR(MODUNREG, 'M');
2518 DO_MODE_CHAR(NONOTICE, 'N');
2519 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2520 DO_MODE_CHAR(NOAMSG, 'T');
2521 DO_MODE_CHAR(OPERSONLY, 'O');
2522 // uncomment this for ssl support
2523 //DO_MODE_CHAR(SSLONLY, 'z');
2524 #undef DO_MODE_CHAR
2525 switch (change->modes_set & (MODE_KEY|MODE_LIMIT)) {
2526 case MODE_KEY|MODE_LIMIT:
2527 used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2528 break;
2529 case MODE_KEY:
2530 used += sprintf(outbuff+used, "k %s", change->new_key);
2531 break;
2532 case MODE_LIMIT:
2533 used += sprintf(outbuff+used, "l %d", change->new_limit);
2534 break;
2535 }
2536 }
2537 outbuff[used] = 0;
2538 return outbuff;
2539 }
2540
2541 static int
2542 clear_chanmode(struct chanNode *channel, const char *modes)
2543 {
2544 unsigned int remove;
2545
2546 for (remove = 0; *modes; modes++) {
2547 switch (*modes) {
2548 case 'o': remove |= MODE_CHANOP; break;
2549 case 'h': remove |= MODE_HALFOP; break;
2550 case 'v': remove |= MODE_VOICE; break;
2551 case 'p': remove |= MODE_PRIVATE; break;
2552 case 's': remove |= MODE_SECRET; break;
2553 case 'm': remove |= MODE_MODERATED; break;
2554 case 't': remove |= MODE_TOPICLIMIT; break;
2555 case 'i': remove |= MODE_INVITEONLY; break;
2556 case 'n': remove |= MODE_NOPRIVMSGS; break;
2557 case 'k':
2558 remove |= MODE_KEY;
2559 channel->key[0] = '\0';
2560 break;
2561 case 'l':
2562 remove |= MODE_LIMIT;
2563 channel->limit = 0;
2564 break;
2565 case 'b': remove |= MODE_BAN; break;
2566 case 'e': remove |= MODE_EXEMPT; break;
2567 case 'D': remove |= MODE_DELAYJOINS; break;
2568 case 'r': remove |= MODE_REGONLY; break;
2569 case 'c': remove |= MODE_NOCOLORS;
2570 case 'C': remove |= MODE_NOCTCPS; break;
2571 case 'S': remove |= MODE_STRIPCOLOR; break;
2572 case 'M': remove |= MODE_MODUNREG; break;
2573 case 'N': remove |= MODE_NONOTICE; break;
2574 case 'Q': remove |= MODE_NOQUITMSGS; break;
2575 case 'T': remove |= MODE_NOAMSG; break;
2576 case 'O': remove |= MODE_OPERSONLY; break;
2577 }
2578 }
2579
2580 if (!remove)
2581 return 1;
2582
2583 /* Remove simple modes. */
2584 channel->modes &= ~remove;
2585
2586 /* If removing bans, kill 'em all. */
2587 if ((remove & MODE_BAN) && channel->banlist.used) {
2588 unsigned int i;
2589 for (i=0; i<channel->banlist.used; i++)
2590 free(channel->banlist.list[i]);
2591 channel->banlist.used = 0;
2592 }
2593
2594 /* If removing exempts, kill 'em all. */
2595 if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2596 unsigned int i;
2597 for (i=0; i<channel->exemptlist.used; i++)
2598 free(channel->exemptlist.list[i]);
2599 channel->exemptlist.used = 0;
2600 }
2601
2602 /* Remove member modes. */
2603 if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2604 int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
2605 unsigned int i;
2606
2607 for (i = 0; i < channel->members.used; i++)
2608 channel->members.list[i]->modes &= mask;
2609 }
2610
2611 return 1;
2612 }
2613
2614 void
2615 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2616 {
2617 unsigned int numeric = user->num_local;
2618 if (numeric >= num_privmsg_funcs) {
2619 int newnum = numeric + 8;
2620 privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
2621 memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
2622 num_privmsg_funcs = newnum;
2623 }
2624 if (privmsg_funcs[numeric])
2625 log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
2626 privmsg_funcs[numeric] = handler;
2627 }
2628
2629 void
2630 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2631 {
2632 unsigned int x;
2633
2634 if (!user || handler)
2635 return; /* this really only works with users */
2636
2637 memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2638
2639 for (x = user->num_local+1; x < num_privmsg_funcs; x++)
2640 memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
2641
2642 privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
2643 num_privmsg_funcs--;
2644 }
2645
2646
2647 void
2648 reg_notice_func(struct userNode *user, privmsg_func_t handler)
2649 {
2650 unsigned int numeric = user->num_local;
2651 if (numeric >= num_notice_funcs) {
2652 int newnum = numeric + 8;
2653 notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
2654 memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
2655 num_notice_funcs = newnum;
2656 }
2657 if (notice_funcs[numeric])
2658 log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
2659 notice_funcs[numeric] = handler;
2660 }
2661
2662 void
2663 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
2664 {
2665 unsigned int x;
2666
2667 if (!user || handler)
2668 return; /* this really only works with users */
2669
2670 memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2671
2672 for (x = user->num_local+1; x < num_notice_funcs; x++)
2673 memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
2674
2675 memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2676 notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
2677 num_notice_funcs--;
2678 }
2679
2680 void
2681 reg_oper_func(oper_func_t handler)
2682 {
2683 if (of_used == of_size) {
2684 if (of_size) {
2685 of_size <<= 1;
2686 of_list = realloc(of_list, of_size*sizeof(oper_func_t));
2687 } else {
2688 of_size = 8;
2689 of_list = malloc(of_size*sizeof(oper_func_t));
2690 }
2691 }
2692 of_list[of_used++] = handler;
2693 }
2694
2695 static void
2696 call_oper_funcs(struct userNode *user)
2697 {
2698 unsigned int n;
2699 if (IsLocal(user))
2700 return;
2701 for (n=0; n<of_used; n++)
2702 of_list[n](user);
2703 }
2704
2705 static void
2706 send_burst(void)
2707 {
2708 unsigned int i, hop, max_hop=1;
2709 dict_iterator_t it;
2710
2711 /* burst (juped) servers, closest first (except self, which is sent already) */
2712 for (i=0; i<ArrayLength(servers_num); i++)
2713 if (servers_num[i] && servers_num[i]->hops > max_hop)
2714 max_hop = servers_num[i]->hops;
2715 for (hop=1; hop<=max_hop; hop++) {
2716 for (i=0;i<ArrayLength(servers_num);i++) {
2717 if (servers_num[i]
2718 && (servers_num[i]->hops == hop)
2719 && (servers_num[i] != self->uplink))
2720 irc_server(servers_num[i]);
2721 }
2722 }
2723
2724 /* burst local nicks */
2725 for (i=0; i<=self->num_mask; i++)
2726 if (self->users[i])
2727 irc_user(self->users[i]);
2728
2729 /* build dict of unbursted channel names (just copy existing channels) */
2730 unbursted_channels = dict_new();
2731 for (it = dict_first(channels); it; it = iter_next(it))
2732 dict_insert(unbursted_channels, iter_key(it), iter_data(it));
2733 }
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