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63c95a47 1/* spamserv.c - anti spam service
2 * Copyright 2004 feigling
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version. Important limitations are
8 * listed in the COPYING file that accompanies this software.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, email evilnet-devel@lists.sourceforge.net.
17 *
18 * $Id$
19 */
20
21#include "conf.h"
22#include "spamserv.h"
23#include "chanserv.h"
24#include "helpfile.h"
25#include "global.h"
26#include "modcmd.h"
27#include "saxdb.h"
28#include "timeq.h"
29#include "gline.h"
30
31#define SPAMSERV_CONF_NAME "services/spamserv"
32
33#define KEY_EXCEPTIONS "exceptions"
34#define KEY_BADWORDS "badwords"
35#define KEY_FLAGS "flags"
36#define KEY_INFO "info"
37#define KEY_EXPIRY "expiry"
38
39#define KEY_DEBUG_CHANNEL "debug_channel"
40#define KEY_GLOBAL_EXCEPTIONS "global_exceptions"
41#define KEY_GLOBAL_BADWORDS "global_badwords"
42#define KEY_NETWORK_RULES "network_rules"
43#define KEY_TRIGGER "trigger"
44#define KEY_SHORT_BAN_DURATION "short_ban_duration"
45#define KEY_LONG_BAN_DURATION "long_ban_duration"
46#define KEY_GLINE_DURATION "gline_duration"
47#define KEY_EXCEPTION_MAX "exception_max"
48#define KEY_EXCEPTION_MIN_LEN "exception_min_len"
49#define KEY_EXCEPTION_MAX_LEN "exception_max_len"
50#define KEY_BADWORD_MAX "badword_max"
51#define KEY_BADWORD_MIN_LEN "badword_min_len"
52#define KEY_BADWORD_MAX_LEN "badword_max_len"
53#define KEY_ADV_CHAN_MUST_EXIST "adv_chan_must_exist"
54#define KEY_STRIP_MIRC_CODES "strip_mirc_codes"
55#define KEY_ALLOW_MOVE_MERGE "allow_move_merge"
56
57#define SPAMSERV_FUNC(NAME) MODCMD_FUNC(NAME)
58#define SPAMSERV_SYNTAX() svccmd_send_help(user, spamserv, cmd)
59#define SPAMSERV_MIN_PARMS(N) do { \
60(void)argv; \
61 if(argc < N) { \
62 ss_reply(MSG_MISSING_PARAMS, argv[0]); \
63 SPAMSERV_SYNTAX(); \
64 return 0; } } while(0)
65
66struct userNode *spamserv;
67static struct module *spamserv_module;
68static struct service *spamserv_service;
69static struct log_type *SS_LOG;
70static unsigned long crc_table[256];
71
72dict_t registered_channels_dict;
73dict_t connected_users_dict;
74dict_t killed_users_dict;
75
76#define spamserv_notice(target, format...) send_message(target , spamserv , ## format)
77#define spamserv_debug(format...) do { if(spamserv_conf.debug_channel) send_channel_notice(spamserv_conf.debug_channel , spamserv , ## format); } while(0)
78#define ss_reply(format...) send_message(user , spamserv , ## format)
79
80#define SET_SUBCMDS_SIZE 13
81
82const char *set_subcommands[SET_SUBCMDS_SIZE] = {"SPAMLIMIT", "BADREACTION", "ADVREACTION", "WARNREACTION", "ADVSCAN", "SPAMSCAN", "BADWORDSCAN", "CHANFLOODSCAN", "JOINFLOODSCAN", "SCANCHANOPS", "SCANHALFOPS", "SCANVOICED"};
83
84extern struct string_list *autojoin_channels;
85static void spamserv_clear_spamNodes(struct chanNode *channel);
86static void spamserv_punish(struct chanNode *channel, struct userNode *user, time_t expires, char *reason, int ban);
87static unsigned long crc32(const char *text);
88
89#define BINARY_OPTION(arguments...) return binary_option(arguments, user, channel, argc, argv);
90#define MULTIPLE_OPTION(arguments...) return multiple_option(arguments, values, ArrayLength(values), user, channel, argc, argv);
91
92static const struct message_entry msgtab[] = {
93 { "SSMSG_CHANNEL_OPTIONS", "Channel Options:" },
94 { "SSMSG_STRING_VALUE", "$b%s$b%s" },
95 { "SSMSG_NUMERIC_VALUE", "$b%s$b%d - %s" },
96 { "SSMSG_INVALID_NUM_SET", "$b'%d'$b is an invalid %s setting." },
97 { "SSMSG_INVALID_OPTION", "$b%s$b is not a valid %s option." },
98 { "SSMSG_INVALID_BINARY", "$b%s$b is an invalid binary value." },
99
100 { "SSMSG_NOT_REGISTERED", "$b%s$b has not been registered with $b$X$b." },
101 { "SSMSG_NOT_REGISTERED_CS", "$b%s$b has not been registered with $b$C$b." },
102 { "SSMSG_ALREADY_REGISTERED", "$b%s$b is already registered." },
103 { "SSMSG_DEBUG_CHAN", "You may not register the debug channel." },
104 { "SSMSG_SUSPENDED_CS", "$b$C$b access to $b%s$b has been temporarily suspended, thus you can't %s it." },
105 { "SSMSG_SUSPENDED", "$b$X$b access to $b%s$b has been temporarily suspended." },
106 { "SSMSG_NO_REGISTER", "Due to an error it was not possible to register $b%s$b." },
107 { "SSMSG_REG_SUCCESS", "Channel $b%s$b registered." },
108 { "SSMSG_UNREG_SUCCESS", "$b%s$b has been unregistered." },
109 { "SSMSG_NO_ACCESS", "You lack sufficient access to use this command." },
110 { "SSMSG_MUST_BE_OPER", "You must be an irc operator to set this option." },
111 { "SSMSG_CONFIRM_UNREG", "To confirm this unregistration, you must append 'CONFIRM' to the end of your command. For example, 'unregister CONFIRM'." },
112
113 { "SSMSG_NO_EXCEPTIONS", "No words found in the exception list." },
114 { "SSMSG_NO_SUCH_EXCEPTION", "Word $b%s$b not found in the exception list." },
115 { "SSMSG_EXCEPTION_LIST", "The following words are in the exception list:" },
116 { "SSMSG_EXCEPTION_ADDED", "Word $b%s$b added to the exception list." },
117 { "SSMSG_EXCEPTION_DELETED", "Word $b%s$b deleted from the exception list." },
118 { "SSMSG_EXCEPTION_IN_LIST", "The word $b%s$b is already in the exception list." },
119 { "SSMSG_EXCEPTION_MAX", "The exception list has reached the maximum exceptions (max %lu). Delete a word to add another one." },
120 { "SSMSG_EXCEPTION_TOO_SHORT", "The word must be at least %lu characters long." },
121 { "SSMSG_EXCEPTION_TOO_LONG", "The word may not be longer than %lu characters." },
122
123 { "SSMSG_NO_BADWORDS", "No words found in the badword list." },
124 { "SSMSG_NO_SUCH_BADWORD", "Word $b%s$b not found in the badword list." },
125 { "SSMSG_BADWORD_LIST", "The following words are in the badword list:" },
126 { "SSMSG_BADWORD_ADDED", "Word $b%s$b added to the badword list." },
127 { "SSMSG_BADWORD_DELETED", "Word $b%s$b deleted from the badword list." },
128 { "SSMSG_BADWORD_IN_LIST", "The word $b%s$b is already in the badword list." },
129 { "SSMSG_BADWORD_MAX", "The badword list has reached the maximum badwords (max %lu). Delete a word to add another one." },
130 { "SSMSG_BADWORD_TOO_SHORT", "The word must be at least %lu characters long." },
131 { "SSMSG_BADWORD_TOO_LONG", "The word may not be longer than %lu characters." },
132
133 { "SSMSG_STATUS", "$bStatus:$b" },
134 { "SSMSG_STATUS_USERS", "Total Users Online: %u" },
135 { "SSMSG_STATUS_CHANNELS", "Registered Channels: %u" },
136 { "SSMSG_STATUS_MEMORY", "$bMemory Information:$b" },
137 { "SSMSG_STATUS_CHANNEL_LIST", "$bRegistered Channels:$b" },
138 { "SSMSG_STATUS_NO_CHANNEL", "No channels registered." },
139
140 { "SSMSG_WARNING_T", "%s is against the network rules" },
141 { "SSMSG_WARNING_2_T", "You are violating the network rules" },
142 { "SSMSG_WARNING_RULES_T", "%s is against the network rules. Read the network rules at %s" },
143 { "SSMSG_WARNING_RULES_2_T", "You are violating the network rules. Read the network rules at %s" },
144
145 { NULL, NULL }
146};
147
148#define SSMSG_DEBUG_KICK "Kicked user $b%s$b from $b%s$b, reason: %s"
149#define SSMSG_DEBUG_BAN "Banned user $b%s$b from $b%s$b, reason: %s"
150#define SSMSG_DEBUG_KILL "Killed user $b%s$b, last violation in $b%s$b"
151#define SSMSG_DEBUG_GLINE "Glined user $b%s$b, host $b%s$b, last violation in $b%s$b"
152#define SSMSG_DEBUG_RECONNECT "Killed user $b%s$b reconnected to the network"
153
154#define SSMSG_SPAM "Spamming"
155#define SSMSG_FLOOD "Flooding the channel/network"
156#define SSMSG_ADV "Advertising"
157#define SSMSG_BAD "Badwords"
158#define SSMSG_JOINFLOOD "Join flooding the channel"
159
160#define SSMSG_WARNING "%s is against the network rules"
161#define SSMSG_WARNING_2 "You are violating the network rules"
162#define SSMSG_WARNING_RULES "%s is against the network rules. Read the network rules at %s"
163#define SSMSG_WARNING_RULES_2 "You are violating the network rules. Read the network rules at %s"
164
165/*
166#define SSMSG_WARNING "SSMSG_WARNING_T"
167#define SSMSG_WARNING_2 "SSMSG_WARNING_2_T"
168#define SSMSG_WARNING_RULES "SSMSG_WARNING_RULES_T"
169#define SSMSG_WARNING_RULES_2 "SSMSG_WARNING_RULES_2_T"
170*/
171
172static struct
173{
174 struct chanNode *debug_channel;
175 struct string_list *global_exceptions;
176 struct string_list *global_badwords;
177 const char *network_rules;
178 unsigned char trigger;
179 unsigned long short_ban_duration;
180 unsigned long long_ban_duration;
181 unsigned long gline_duration;
182 unsigned long exception_max;
183 unsigned long exception_min_len;
184 unsigned long exception_max_len;
185 unsigned long badword_max;
186 unsigned long badword_min_len;
187 unsigned long badword_max_len;
188 unsigned int adv_chan_must_exist : 1;
189 unsigned int strip_mirc_codes : 1;
190 unsigned int allow_move_merge : 1;
191} spamserv_conf;
192
193/***********************************************/
194/* Channel */
195/***********************************************/
196
197struct chanInfo*
198get_chanInfo(const char *channelname)
199{
200 return dict_find(registered_channels_dict, channelname, 0);
201}
202
203static void
204spamserv_join_channel(struct chanNode *channel)
205{
206 struct mod_chanmode change;
207 mod_chanmode_init(&change);
208 change.argc = 1;
209 change.args[0].mode = MODE_CHANOP;
210 change.args[0].u.member = AddChannelUser(spamserv, channel);
211 mod_chanmode_announce(spamserv, channel, &change);
212}
213
214static void
215spamserv_part_channel(struct chanNode *channel, char *reason)
216{
217 /* we only have to clear the spamNodes because every other node expires on it's own */
218 spamserv_clear_spamNodes(channel);
219 DelChannelUser(spamserv, channel, reason, 0);
220}
221
222static struct chanInfo*
223spamserv_register_channel(struct chanNode *channel, struct string_list *exceptions, struct string_list *badwords, unsigned int flags, char *info)
224{
225 struct chanInfo *cInfo = malloc(sizeof(struct chanInfo));
226
227 if(!cInfo)
228 {
229 log_module(SS_LOG, LOG_ERROR, "Couldn't allocate memory for cInfo; channel: %s", channel->name);
230 return NULL;
231 }
232
233 cInfo->channel = channel;
234 cInfo->exceptions = exceptions ? string_list_copy(exceptions) : alloc_string_list(1);
235 cInfo->badwords = badwords ? string_list_copy(badwords) : alloc_string_list(1);
236 cInfo->flags = flags;
237 safestrncpy(cInfo->info, info, sizeof(cInfo->info));
238 cInfo->suspend_expiry = 0;
239 dict_insert(registered_channels_dict, cInfo->channel->name, cInfo);
240
241 return cInfo;
242}
243
244static void
245spamserv_unregister_channel(struct chanInfo *cInfo)
246{
247 if(!cInfo)
248 return;
249
250 dict_remove(registered_channels_dict, cInfo->channel->name);
251 free_string_list(cInfo->exceptions);
252 free_string_list(cInfo->badwords);
253 free(cInfo);
254}
255
256void
257spamserv_cs_suspend(struct chanNode *channel, time_t expiry, int suspend, char *reason)
258{
259 struct chanInfo *cInfo = get_chanInfo(channel->name);
260
261 if(cInfo)
262 {
263 if(suspend)
264 {
265 cInfo->flags |= CHAN_SUSPENDED;
266 cInfo->suspend_expiry = expiry;
267 spamserv_part_channel(channel, reason);
268 }
269 else
270 {
271 if(CHECK_SUSPENDED(cInfo))
272 {
273 cInfo->flags &= ~CHAN_SUSPENDED;
274 cInfo->suspend_expiry = 0;
275 }
276 }
277 }
278}
279
280int
281spamserv_cs_move_merge(struct userNode *user, struct chanNode *channel, struct chanNode *target, int move)
282{
283 struct chanInfo *cInfo = get_chanInfo(channel->name);
284
285 if(cInfo)
286 {
287 char reason[MAXLEN];
288
289 if(!spamserv_conf.allow_move_merge || get_chanInfo(target->name))
290 {
291 if(move)
292 snprintf(reason, sizeof(reason), "unregistered due to a channel move to %s", target->name);
293 else
294 snprintf(reason, sizeof(reason), "unregistered due to a channel merge into %s", target->name);
295
296 spamserv_cs_unregister(user, channel, manually, reason);
297 return 0;
298 }
299
300 cInfo->channel = target;
301
302 dict_remove(registered_channels_dict, channel->name);
303 dict_insert(registered_channels_dict, target->name, cInfo);
304
305 if(move)
306 {
307 snprintf(reason, sizeof(reason), "Channel moved to %s by %s.", target->name, user->handle_info->handle);
308 }
309 else
310 {
311 spamserv_join_channel(target);
312 snprintf(reason, sizeof(reason), "%s merged into %s by %s.", channel->name, target->name, user->handle_info->handle);
313 }
314
315 if(!CHECK_SUSPENDED(cInfo))
316 spamserv_part_channel(channel, reason);
317
318 if(move)
319 snprintf(reason, sizeof(reason), "$X (channel %s) moved to %s by %s.", channel->name, target->name, user->handle_info->handle);
320 else
321 snprintf(reason, sizeof(reason), "$X (channel %s) merged into %s by %s.", channel->name, target->name, user->handle_info->handle);
322
323 global_message(MESSAGE_RECIPIENT_OPERS | MESSAGE_RECIPIENT_HELPERS, reason);
324 return 1;
325 }
326
327 return 0;
328}
329
330void
331spamserv_cs_unregister(struct userNode *user, struct chanNode *channel, enum cs_unreg type, char *reason)
332{
333 struct chanInfo *cInfo = get_chanInfo(channel->name);
334
335 if(cInfo)
336 {
337 char global[MAXLEN], partmsg[MAXLEN];
338
339 switch (type)
340 {
341 case manually:
342 snprintf(global, sizeof(global), "$X (channel %s) %s by %s.", channel->name, reason, user->handle_info->handle);
343 snprintf(partmsg, sizeof(partmsg), "%s %s by %s.", channel->name, reason, user->handle_info->handle);
344 break;
345 case expire:
346 snprintf(global, sizeof(global), "$X (channel %s) registration expired.", channel->name);
347 snprintf(partmsg, sizeof(partmsg), "%s registration expired.", channel->name);
348 break;
349 case lost_all_users:
350 snprintf(global, sizeof(global), "$X (channel %s) lost all users.", channel->name);
351 snprintf(partmsg, sizeof(partmsg), "%s lost all users.", channel->name);
352 break;
353 }
354
355 if(!CHECK_SUSPENDED(cInfo))
356 spamserv_part_channel(channel, partmsg);
357
358 spamserv_unregister_channel(cInfo);
359 global_message(MESSAGE_RECIPIENT_OPERS | MESSAGE_RECIPIENT_HELPERS, global);
360 }
361}
362
363/***********************************************/
364/* User */
365/***********************************************/
366
367static struct userInfo*
368get_userInfo(const char *nickname)
369{
370 return dict_find(connected_users_dict, nickname, 0);
371}
372
373static void
374spamserv_create_spamNode(struct chanNode *channel, struct userInfo *uInfo, char *text)
375{
376 struct spamNode *sNode = malloc(sizeof(struct spamNode));
377
378 if(!sNode)
379 {
380 log_module(SS_LOG, LOG_ERROR, "Couldn't allocate memory for sNode; channel: %s; user: %s", channel->name, uInfo->user->nick);
381 return;
382 }
383
384 sNode->channel = channel;
385 sNode->crc32 = crc32(text);
386 sNode->count = 1;
387 sNode->next = NULL;
388
389 if(uInfo->spam)
390 {
391 struct spamNode *temp = uInfo->spam;
392
393 while(temp->next)
394 temp = temp->next;
395
396 sNode->prev = temp;
397 temp->next = sNode;
398 }
399 else
400 {
401 sNode->prev = NULL;
402 uInfo->spam = sNode;
403 }
404}
405
406static void
407spamserv_delete_spamNode(struct userInfo *uInfo, struct spamNode *sNode)
408{
409 if(!sNode)
410 return;
411
412 if(sNode == uInfo->spam)
413 uInfo->spam = sNode->next;
414
415 if(sNode->next)
416 sNode->next->prev = sNode->prev;
417 if(sNode->prev)
418 sNode->prev->next = sNode->next;
419
420 free(sNode);
421}
422
423static void
424spamserv_clear_spamNodes(struct chanNode *channel)
425{
426 struct userInfo *uInfo;
427 struct spamNode *sNode;
428 unsigned int i;
429
430 for(i = 0; i < channel->members.used; i++)
431 {
432 if((uInfo = get_userInfo(channel->members.list[i]->user->nick)))
433 {
434 if((sNode = uInfo->spam))
435 {
436 for(; sNode; sNode = sNode->next)
437 if(sNode->channel == channel)
438 break;
439
440 if(sNode)
441 spamserv_delete_spamNode(uInfo, sNode);
442 }
443 }
444 }
445}
446
447static void
448spamserv_create_floodNode(struct chanNode *channel, struct userNode *user, struct floodNode **uI_fNode)
449{
450 struct floodNode *fNode = malloc(sizeof(struct floodNode));
451
452 if(!fNode)
453 {
454 log_module(SS_LOG, LOG_ERROR, "Couldn't allocate memory for fNode; channel: %s; user: %s", channel->name, user->nick);
455 return;
456 }
457
458 fNode->channel = channel;
459 fNode->owner = user;
460 fNode->count = 1;
461 fNode->time = now;
462 fNode->next = NULL;
463
464 if(*uI_fNode)
465 {
466 struct floodNode *temp = *uI_fNode;
467
468 while(temp->next)
469 temp = temp->next;
470
471 fNode->prev = temp;
472 temp->next = fNode;
473 }
474 else
475 {
476 fNode->prev = NULL;
477 *uI_fNode = fNode;
478 }
479}
480
481static void
482spamserv_delete_floodNode(struct floodNode **uI_fNode, struct floodNode *fNode)
483{
484 if(!fNode)
485 return;
486
487 if(fNode == *uI_fNode)
488 *uI_fNode = fNode->next;
489
490 if(fNode->next)
491 fNode->next->prev = fNode->prev;
492 if(fNode->prev)
493 fNode->prev->next = fNode->next;
494
495 free(fNode);
496}
497
498static void
499spamserv_create_user(struct userNode *user)
500{
501 struct userInfo *uInfo = malloc(sizeof(struct userInfo));
502 struct killNode *kNode = dict_find(killed_users_dict, irc_ntoa(&user->ip), 0);
503
504 if(!uInfo)
505 {
506 log_module(SS_LOG, LOG_ERROR, "Couldn't allocate memory for uInfo; nick: %s", user->nick);
507 return;
508 }
509
510 if(kNode)
511 spamserv_debug(SSMSG_DEBUG_RECONNECT, user->nick);
512
513 uInfo->user = user;
514 uInfo->spam = NULL;
515 uInfo->flood = NULL;
516 uInfo->joinflood = NULL;
517 uInfo->flags = kNode ? USER_KILLED : 0;
518 uInfo->warnlevel = kNode ? kNode->warnlevel : 0;
519 uInfo->lastadv = 0;
520 uInfo->lastbad = 0;
521
522 dict_insert(connected_users_dict, user->nick, uInfo);
523
524 if(kNode)
525 {
526 dict_remove(killed_users_dict, irc_ntoa(&user->ip));
527 free(kNode);
528 }
529}
530
531static void
532spamserv_delete_user(struct userInfo *uInfo)
533{
534 if(!uInfo)
535 return;
536
537 if(uInfo->spam)
538 while(uInfo->spam)
539 spamserv_delete_spamNode(uInfo, uInfo->spam);
540
541 if(uInfo->flood)
542 while(uInfo->flood)
543 spamserv_delete_floodNode(&uInfo->flood, uInfo->flood);
544
545 if(uInfo->joinflood)
546 while(uInfo->joinflood)
547 spamserv_delete_floodNode(&uInfo->joinflood, uInfo->joinflood);
548
549 dict_remove(connected_users_dict, uInfo->user->nick);
550 free(uInfo);
551}
552
553static int
554spamserv_new_user_func(struct userNode *user)
555{
556 if(!IsLocal(user))
557 spamserv_create_user(user);
558
559 return 0;
560}
561
562static void
563spamserv_del_user_func(struct userNode *user, struct userNode *killer, UNUSED_ARG(const char *why))
564{
565 struct userInfo *uInfo = get_userInfo(user->nick);
566 struct killNode *kNode;
567
568 if(killer == spamserv)
569 {
570 kNode = malloc(sizeof(struct killNode));
571
572 if(!kNode)
573 {
574 log_module(SS_LOG, LOG_ERROR, "Couldn't allocate memory for killNode - nickname %s", user->nick);
575 spamserv_delete_user(uInfo);
576 return;
577 }
578
579 if(uInfo->warnlevel > KILL_WARNLEVEL)
580 kNode->warnlevel = uInfo->warnlevel - KILL_WARNLEVEL;
581 else
582 kNode->warnlevel = 0;
583
584 kNode->time = now;
585
586 dict_insert(killed_users_dict, irc_ntoa(&user->ip), kNode);
587 }
588
589 spamserv_delete_user(uInfo);
590}
591
592static void
593spamserv_nick_change_func(struct userNode *user, const char *old_nick)
594{
595 struct userInfo *uInfo = get_userInfo(old_nick);
596
597 dict_remove(connected_users_dict, old_nick);
598 dict_insert(connected_users_dict, user->nick, uInfo);
599}
600
601static int
602spamserv_user_join(struct modeNode *mNode)
603{
604 struct chanNode *channel = mNode->channel;
605 struct userNode *user = mNode->user;
606 struct chanInfo *cInfo;
607 struct userInfo *uInfo;
608 struct floodNode *jfNode;
609
610 if(user->uplink->burst || !(cInfo = get_chanInfo(channel->name)) || !CHECK_JOINFLOOD(cInfo) || !(uInfo = get_userInfo(user->nick)))
611 return 0;
612
613 if(!(jfNode = uInfo->joinflood))
614 {
615 spamserv_create_floodNode(channel, user, &uInfo->joinflood);
616 }
617 else
618 {
619 for(; jfNode; jfNode = jfNode->next)
620 if(jfNode->channel == channel)
621 break;
622
623 if(!jfNode)
624 {
625 spamserv_create_floodNode(channel, user, &uInfo->joinflood);
626 }
627 else
628 {
629 jfNode->count++;
630 jfNode->time = now;
631
632 if(jfNode->count > JOINFLOOD_MAX)
633 {
634 char reason[MAXLEN];
635
636 spamserv_delete_floodNode(&uInfo->joinflood, jfNode);
637 snprintf(reason, sizeof(reason), spamserv_conf.network_rules ? SSMSG_WARNING_RULES : SSMSG_WARNING, SSMSG_JOINFLOOD, spamserv_conf.network_rules);
638 spamserv_punish(channel, user, JOINFLOOD_B_DURATION, reason, 1);
639 }
640 }
641 }
642
643 return 0;
644}
645
646static void
647spamserv_user_part(struct modeNode *mn, UNUSED_ARG(const char *reason))
648{
649 struct userNode *user = mn->user;
650 struct chanNode *channel = mn->channel;
651 struct userInfo *uInfo;
652 struct spamNode *sNode;
653 struct floodNode *fNode;
654
655 if(user->dead || !get_chanInfo(channel->name) || !(uInfo = get_userInfo(user->nick)))
656 return;
657
658 if((sNode = uInfo->spam))
659 {
660 for(; sNode; sNode = sNode->next)
661 if(sNode->channel == channel)
662 break;
663
664 if(sNode)
665 spamserv_delete_spamNode(uInfo, sNode);
666 }
667
668 if((fNode = uInfo->flood))
669 {
670 for(; fNode; fNode = fNode->next)
671 if(fNode->channel == channel)
672 break;
673
674 if(fNode)
675 spamserv_delete_floodNode(&uInfo->flood, fNode);
676 }
677}
678
679/***********************************************/
680/* Other Stuff */
681/***********************************************/
682
683static void
684crc32_init(void)
685{
686 unsigned long crc;
687 int i, j;
688
689 for(i = 0; i < 256; i++)
690 {
691 crc = i;
692
693 for(j = 8; j > 0; j--)
694 {
695 if(crc & 1)
696 {
697 crc = (crc >> 1) ^ 0xEDB88320L;
698 }
699 else
700 {
701 crc >>= 1;
702 }
703 }
704
705 crc_table[i] = crc;
706 }
707}
708
709static unsigned long
710crc32(const char *text)
711{
712 register unsigned long crc = 0xFFFFFFFF;
713 unsigned int c, i = 0;
714
715 while((c = (unsigned int)text[i++]) != 0)
716 crc = ((crc >> 8) & 0x00FFFFFF) ^ crc_table[(crc^c) & 0xFF];
717
718 return (crc^0xFFFFFFFF);
719}
720
721static void
722timeq_flood(UNUSED_ARG(void *data))
723{
724 dict_iterator_t it;
725 struct userInfo *uInfo;
726 struct floodNode *fNode;
727
728 for(it = dict_first(connected_users_dict); it; it = iter_next(it))
729 {
730 uInfo = iter_data(it);
731
732 if(!(fNode = uInfo->flood))
733 continue;
734
735 for(; fNode; fNode = fNode->next)
736 {
737 if(now - fNode->time > FLOOD_EXPIRE)
738 {
739 if(!(--fNode->count))
740 spamserv_delete_floodNode(&uInfo->flood, fNode);
741 }
742 }
743 }
744
745 timeq_add(now + FLOOD_TIMEQ_FREQ, timeq_flood, NULL);
746}
747
748static void
749timeq_joinflood(UNUSED_ARG(void *data))
750{
751 dict_iterator_t it;
752 struct userInfo *uInfo;
753 struct floodNode *fNode;
754
755 for(it = dict_first(connected_users_dict); it; it = iter_next(it))
756 {
757 uInfo = iter_data(it);
758
759 if(!(fNode = uInfo->joinflood))
760 continue;
761
762 for(; fNode; fNode = fNode->next)
763 {
764 if(now - fNode->time > JOINFLOOD_EXPIRE)
765 {
766 if(!(--fNode->count))
767 spamserv_delete_floodNode(&uInfo->joinflood, fNode);
768 }
769 }
770 }
771
772 timeq_add(now + JOINFLOOD_TIMEQ_FREQ, timeq_joinflood, NULL);
773}
774
775static void
776timeq_bad(UNUSED_ARG(void *data))
777{
778 dict_iterator_t it;
779 struct userInfo *uInfo;
780
781 for(it = dict_first(connected_users_dict); it; it = iter_next(it))
782 {
783 uInfo = iter_data(it);
784
785 if(uInfo->lastbad && uInfo->lastbad - now > BAD_EXPIRE)
786 {
787 uInfo->lastbad = 0;
788 uInfo->flags &= ~USER_BAD_WARNED;
789 }
790 }
791
792 timeq_add(now + BAD_TIMEQ_FREQ, timeq_bad, NULL);
793}
794
795static void
796timeq_adv(UNUSED_ARG(void *data))
797{
798 dict_iterator_t it;
799 struct userInfo *uInfo;
800
801 for(it = dict_first(connected_users_dict); it; it = iter_next(it))
802 {
803 uInfo = iter_data(it);
804
805 if(uInfo->lastadv && uInfo->lastadv - now > ADV_EXPIRE)
806 {
807 uInfo->lastadv = 0;
808 uInfo->flags &= ~USER_ADV_WARNED;
809 }
810 }
811
812 timeq_add(now + ADV_TIMEQ_FREQ, timeq_adv, NULL);
813}
814
815static void
816timeq_warnlevel(UNUSED_ARG(void *data))
817{
818 dict_iterator_t it;
819 struct userInfo *uInfo;
820
821 for(it = dict_first(connected_users_dict); it; it = iter_next(it))
822 {
823 uInfo = iter_data(it);
824
825 if(uInfo->warnlevel > 0)
826 uInfo->warnlevel--;
827 }
828
829 timeq_add(now + WARNLEVEL_TIMEQ_FREQ, timeq_warnlevel, NULL);
830}
831
832static void
833timeq_kill(UNUSED_ARG(void *data))
834{
835 dict_iterator_t it;
836 struct killNode *kNode;
837
838 for(it = dict_first(killed_users_dict); it; it = iter_next(it))
839 {
840 kNode = iter_data(it);
841
842 if(kNode->time - now > KILL_EXPIRE)
843 free(kNode);
844 }
845
846 timeq_add(now + KILL_TIMEQ_FREQ, timeq_kill, NULL);
847}
848
849static int
850binary_option(char *name, unsigned long mask, struct userNode *user, struct chanNode *channel, int argc, char *argv[])
851{
852 struct chanInfo *cInfo = get_chanInfo(channel->name);
853 int value;
854
855 if(argc > 1)
856 {
857 if(enabled_string(argv[1]))
858 {
859 cInfo->flags |= mask;
860 value = 1;
861 }
862 else if(disabled_string(argv[1]))
863 {
864 cInfo->flags &= ~mask;
865 value = 0;
866 }
867 else
868 {
869 spamserv_notice(user, "SSMSG_INVALID_BINARY", argv[1]);
870 return 0;
871 }
872 }
873 else
874 {
875 value = (cInfo->flags & mask) ? 1 : 0;
876 }
877
878 spamserv_notice(user, "SSMSG_STRING_VALUE", name, value ? "Enabled." : "Disabled.");
879 return 1;
880}
881
882struct valueData
883{
884 char *description;
885 char value;
886 int oper_only : 1;
887};
888
889static int
890multiple_option(char *name, char *description, enum channelinfo info, struct valueData *values, int count, struct userNode *user, struct chanNode *channel, int argc, char *argv[])
891{
892 struct chanInfo *cInfo = get_chanInfo(channel->name);
893 int index;
894
895 if(argc > 1)
896 {
897 index = atoi(argv[1]);
898
899 if(index < 0 || index >= count)
900 {
901 spamserv_notice(user, "SSMSG_INVALID_NUM_SET", index, description);
902
903 for(index = 0; index < count; index++)
904 spamserv_notice(user, "SSMSG_NUMERIC_VALUE", name, index, values[index].description);
905
906 return 0;
907 }
908
909 if(values[index].oper_only && !IsOper(user))
910 {
911 spamserv_notice(user, "SSMSG_MUST_BE_OPER");
912 return 0;
913 }
914
915 cInfo->info[info] = values[index].value;
916 }
917 else
918 {
919 for(index = 0; index < count && cInfo->info[info] != values[index].value; index++);
920 }
921
922 spamserv_notice(user, "SSMSG_NUMERIC_VALUE", name, index, values[index].description);
923 return 1;
924}
925
926static int
927show_exceptions(struct userNode *user, struct chanInfo *cInfo)
928{
929 struct helpfile_table table;
930 unsigned int i;
931
932 if(!cInfo->exceptions->used)
933 {
934 spamserv_notice(user, "SSMSG_NO_EXCEPTIONS");
935 return 0;
936 }
937
938 spamserv_notice(user, "SSMSG_EXCEPTION_LIST");
939
940 table.length = 0;
941 table.width = 1;
942 table.flags = TABLE_REPEAT_ROWS | TABLE_NO_FREE | TABLE_NO_HEADERS;
943 table.contents = alloca(cInfo->exceptions->used * sizeof(*table.contents));
944
945 for(i = 0; i < cInfo->exceptions->used; i++)
946 {
947 table.contents[table.length] = alloca(table.width * sizeof(**table.contents));
948 table.contents[table.length][0] = cInfo->exceptions->list[i];
949 table.length++;
950 }
951
952 table_send(spamserv, user->nick, 0, NULL, table);
953
954 return 1;
955}
956
957static int
958show_badwords(struct userNode *user, struct chanInfo *cInfo)
959{
960 struct helpfile_table table;
961 unsigned int i;
962
963 if(!cInfo->badwords->used)
964 {
965 spamserv_notice(user, "SSMSG_NO_BADWORDS");
966 return 0;
967 }
968
969 spamserv_notice(user, "SSMSG_BADWORD_LIST");
970
971 table.length = 0;
972 table.width = 1;
973 table.flags = TABLE_REPEAT_ROWS | TABLE_NO_FREE | TABLE_NO_HEADERS;
974 table.contents = alloca(cInfo->badwords->used * sizeof(*table.contents));
975
976 for(i = 0; i < cInfo->badwords->used; i++)
977 {
978 table.contents[table.length] = alloca(table.width * sizeof(**table.contents));
979 table.contents[table.length][0] = cInfo->badwords->list[i];
980 table.length++;
981 }
982
983 table_send(spamserv, user->nick, 0, NULL, table);
984
985 return 1;
986}
987
988static void
989show_memory_usage(struct userNode *user)
990{
991 dict_iterator_t it;
992 struct helpfile_table table;
993 struct chanInfo *cInfo;
994 struct userInfo *uInfo;
995 struct spamNode *sNode;
996 struct floodNode *fNode;
997 double channel_size = 0, user_size, size;
998 unsigned int spamcount = 0, floodcount = 0, i, j;
999 char buffer[64];
1000
1001 for(it = dict_first(registered_channels_dict); it; it = iter_next(it))
1002 {
1003 cInfo = iter_data(it);
1004
1005 if(!cInfo->exceptions->used)
1006 continue;
1007
1008 if(!cInfo->badwords->used)
1009 continue;
1010
1011 for(i = 0; i < cInfo->exceptions->used; i++)
1012 channel_size += strlen(cInfo->exceptions->list[i]) * sizeof(char);
1013
1014 for(i = 0; i < cInfo->badwords->used; i++)
1015 channel_size += strlen(cInfo->badwords->list[i]) * sizeof(char);
1016 }
1017
1018 for(it = dict_first(connected_users_dict); it; it = iter_next(it))
1019 {
1020 uInfo = iter_data(it);
1021
1022 for(sNode = uInfo->spam; sNode; sNode = sNode->next, spamcount++);
1023 for(fNode = uInfo->flood; fNode; fNode = fNode->next, floodcount++);
1024 for(fNode = uInfo->joinflood; fNode; fNode = fNode->next, floodcount++);
1025 }
1026
1027 channel_size += dict_size(registered_channels_dict) * sizeof(struct chanInfo);
1028
1029 user_size = dict_size(connected_users_dict) * sizeof(struct userInfo) +
1030 dict_size(killed_users_dict) * sizeof(struct killNode) +
1031 spamcount * sizeof(struct spamNode) +
1032 floodcount * sizeof(struct floodNode);
1033
1034 size = channel_size + user_size;
1035
1036 ss_reply("SSMSG_STATUS_MEMORY");
1037
1038 table.length = 3;
1039 table.width = 4;
1040 table.flags = TABLE_NO_FREE | TABLE_NO_HEADERS | TABLE_PAD_LEFT;
1041 table.contents = calloc(table.length, sizeof(char**));
1042
1043 // chanInfo
1044 table.contents[0] = calloc(table.width, sizeof(char*));
1045 snprintf(buffer, sizeof(buffer), "Channel Memory Usage:");
1046 table.contents[0][0] = strdup(buffer);
1047 snprintf(buffer, sizeof(buffer), " %g Byte; ", channel_size);
1048 table.contents[0][1] = strdup(buffer);
1049 snprintf(buffer, sizeof(buffer), "%g KiloByte; ", channel_size / 1024);
1050 table.contents[0][2] = strdup(buffer);
1051 snprintf(buffer, sizeof(buffer), "%g MegaByte", channel_size / 1024 / 1024);
1052 table.contents[0][3] = strdup(buffer);
1053
1054 // userInfo
1055 table.contents[1] = calloc(table.width, sizeof(char*));
1056 snprintf(buffer, sizeof(buffer), "User Memory Usage :");
1057 table.contents[1][0] = strdup(buffer);
1058 snprintf(buffer, sizeof(buffer), " %g Byte; ", user_size);
1059 table.contents[1][1] = strdup(buffer);
1060 snprintf(buffer, sizeof(buffer), "%g KiloByte; ", user_size / 1024);
1061 table.contents[1][2] = strdup(buffer);
1062 snprintf(buffer, sizeof(buffer), "%g MegaByte", user_size / 1024 / 1024);
1063 table.contents[1][3] = strdup(buffer);
1064
1065 // total memory usage
1066 table.contents[2] = calloc(table.width, sizeof(char*));
1067 snprintf(buffer, sizeof(buffer), "Total Memory Usage :");
1068 table.contents[2][0] = strdup(buffer);
1069 snprintf(buffer, sizeof(buffer), " %g Byte; ", size);
1070 table.contents[2][1] = strdup(buffer);
1071 snprintf(buffer, sizeof(buffer), "%g KiloByte; ", size / 1024);
1072 table.contents[2][2] = strdup(buffer);
1073 snprintf(buffer, sizeof(buffer), "%g MegaByte", size / 1024 / 1024);
1074 table.contents[2][3] = strdup(buffer);
1075
1076 table_send(spamserv, user->nick, 0, NULL, table);
1077
1078 for(i = 0; i < table.length; i++)
1079 {
1080 for(j = 0; j < table.width; j++)
1081 free((char*)table.contents[i][j]);
1082
1083 free(table.contents[i]);
1084 }
1085
1086 free(table.contents);
1087}
1088
1089static void
1090show_registered_channels(struct userNode *user)
1091{
1092 struct helpfile_table table;
1093 dict_iterator_t it;
1094
1095 spamserv_notice(user, "SSMSG_STATUS_CHANNEL_LIST");
1096
1097 if(!dict_size(registered_channels_dict))
1098 {
1099 spamserv_notice(user, "SSMSG_STATUS_NO_CHANNEL");
1100 return;
1101 }
1102
1103 table.length = 0;
1104 table.width = 1;
1105 table.flags = TABLE_REPEAT_ROWS | TABLE_NO_FREE | TABLE_NO_HEADERS;
1106 table.contents = alloca(dict_size(registered_channels_dict) * sizeof(*table.contents));
1107
1108 for(it = dict_first(registered_channels_dict); it; it = iter_next(it))
1109 {
1110 struct chanInfo *cInfo = iter_data(it);
1111
1112 table.contents[table.length] = alloca(table.width * sizeof(**table.contents));
1113 table.contents[table.length][0] = cInfo->channel->name;
1114 table.length++;
1115 }
1116
1117 table_send(spamserv, user->nick, 0, NULL, table);
1118}
1119
1120/***********************************************/
1121/* SpamServ_Func */
1122/***********************************************/
1123
1124static
1125SPAMSERV_FUNC(cmd_register)
1126{
1127 struct chanInfo *cInfo;
1128 char reason[MAXLEN];
1129
1130 if(!channel || !channel->channel_info)
1131 {
1132 ss_reply("SSMSG_NOT_REGISTERED_CS", channel->name);
1133 return 0;
1134 }
1135
1136 if(get_chanInfo(channel->name))
1137 {
1138 ss_reply("SSMSG_ALREADY_REGISTERED", channel->name);
1139 return 0;
1140 }
1141
1142 if(IsSuspended(channel->channel_info))
1143 {
1144 ss_reply("SSMSG_SUSPENDED_CS", channel->name, "register");
1145 return 0;
1146 }
1147
1148 if(channel == spamserv_conf.debug_channel)
1149 {
1150 ss_reply("SSMSG_DEBUG_CHAN");
1151 return 0;
1152 }
1153
1154 if(!(cInfo = spamserv_register_channel(channel, spamserv_conf.global_exceptions, spamserv_conf.global_badwords, CHAN_FLAGS_DEFAULT , CHAN_INFO_DEFAULT)))
1155 {
1156 ss_reply("SSMSG_NO_REGISTER", channel->name);
1157 return 0;
1158 }
1159
1160 spamserv_join_channel(cInfo->channel);
1161
1162 snprintf(reason, sizeof(reason), "%s (channel %s) registered by %s.", spamserv->nick, channel->name, user->handle_info->handle);
1163 global_message(MESSAGE_RECIPIENT_OPERS | MESSAGE_RECIPIENT_HELPERS, reason);
1164 ss_reply("SSMSG_REG_SUCCESS", channel->name);
1165
1166 return 1;
1167}
1168
1169static
1170SPAMSERV_FUNC(cmd_unregister)
1171{
1172 struct chanInfo *cInfo;
1173 struct chanData *cData;
1174 struct userData *uData;
1175 char reason[MAXLEN];
1176
1177 if(!channel || !(cData = channel->channel_info) || !(cInfo = get_chanInfo(channel->name)))
1178 {
1179 ss_reply("SSMSG_NOT_REGISTERED", channel->name);
1180 return 0;
1181 }
1182
1183 if(!(uData = GetChannelUser(cData, user->handle_info)) || (uData->access < UL_OWNER))
1184 {
1185 ss_reply("SSMSG_NO_ACCESS");
1186 return 0;
1187 }
1188
1189 if(!IsHelping(user))
1190 {
1191 if(IsSuspended(cData))
1192 {
1193 ss_reply("SSMSG_SUSPENDED_CS", channel->name, "unregister");
1194 return 0;
1195 }
1196
1197 if(argc < 2 || strcasecmp(argv[1], "CONFIRM"))
1198 {
1199 ss_reply("SSMSG_CONFIRM_UNREG");
1200 return 0;
1201 }
1202 }
1203
1204 if(!CHECK_SUSPENDED(cInfo))
1205 {
1206 snprintf(reason, sizeof(reason), "%s unregistered by %s.", spamserv->nick, user->handle_info->handle);
1207 spamserv_part_channel(channel, reason);
1208 }
1209
1210 spamserv_unregister_channel(cInfo);
1211
1212 snprintf(reason, sizeof(reason), "%s (channel %s) unregistered by %s.", spamserv->nick, channel->name, user->handle_info->handle);
1213 global_message(MESSAGE_RECIPIENT_OPERS | MESSAGE_RECIPIENT_HELPERS, reason);
1214 ss_reply("SSMSG_UNREG_SUCCESS", channel->name);
1215
1216 return 1;
1217}
1218
1219static
1220SPAMSERV_FUNC(cmd_status)
1221{
1222 ss_reply("SSMSG_STATUS");
1223 ss_reply("SSMSG_STATUS_USERS", dict_size(connected_users_dict));
1224 ss_reply("SSMSG_STATUS_CHANNELS", dict_size(registered_channels_dict));
1225
1226 if(IsOper(user) && argc > 1)
1227 {
1228 if(!irccasecmp(argv[1], "memory"))
1229 show_memory_usage(user);
1230 else if(!irccasecmp(argv[1], "channels"))
1231 show_registered_channels(user);
1232 }
1233
1234 return 1;
1235}
1236
1237static
1238SPAMSERV_FUNC(cmd_addexception)
1239{
1240 struct chanInfo *cInfo = get_chanInfo(channel->name);
1241 struct userData *uData;
1242 unsigned int i;
1243
1244 if(!cInfo || !channel->channel_info)
1245 {
1246 ss_reply("SSMSG_NOT_REGISTERED", channel->name);
1247 return 0;
1248 }
1249
1250 if(CHECK_SUSPENDED(cInfo))
1251 {
1252 ss_reply("SSMSG_SUSPENDED", channel->name);
1253 return 0;
1254 }
1255
1256 if(!(uData = GetChannelUser(channel->channel_info, user->handle_info)) || (uData->access < 400))
1257 {
1258 ss_reply("SSMSG_NO_ACCESS");
1259 return 0;
1260 }
1261
1262 if(argc < 2)
1263 return show_exceptions(user, cInfo);
1264
1265 if(cInfo->exceptions->used == spamserv_conf.exception_max && !IsOper(user))
1266 {
1267 ss_reply("SSMSG_EXCEPTION_MAX", spamserv_conf.exception_max);
1268 return 0;
1269 }
1270
1271 if(strlen(argv[1]) < spamserv_conf.exception_min_len)
1272 {
1273 ss_reply("SSMSG_EXCEPTION_TOO_SHORT", spamserv_conf.exception_min_len);
1274 return 0;
1275 }
1276 else if(strlen(argv[1]) > spamserv_conf.exception_max_len)
1277 {
1278 ss_reply("SSMSG_EXCEPTION_TOO_LONG", spamserv_conf.exception_max_len);
1279 return 0;
1280 }
1281
1282 for(i = 0; i < cInfo->exceptions->used; i++)
1283 {
1284 if(!irccasecmp(argv[1], cInfo->exceptions->list[i]))
1285 {
1286 ss_reply("SSMSG_EXCEPTION_IN_LIST", argv[1]);
1287 return 0;
1288 }
1289 }
1290
1291 string_list_append(cInfo->exceptions, strdup(argv[1]));
1292 ss_reply("SSMSG_EXCEPTION_ADDED", argv[1]);
1293
1294 return 1;
1295}
1296
1297static
1298SPAMSERV_FUNC(cmd_delexception)
1299{
1300 struct chanInfo *cInfo = get_chanInfo(channel->name);
1301 struct userData *uData;
1302 unsigned int i;
1303 int found = -1;
1304
1305 if(!cInfo || !channel->channel_info)
1306 {
1307 ss_reply("SSMSG_NOT_REGISTERED", channel->name);
1308 return 0;
1309 }
1310
1311 if(CHECK_SUSPENDED(cInfo))
1312 {
1313 ss_reply("SSMSG_SUSPENDED", channel->name);
1314 return 0;
1315 }
1316
1317 if(!(uData = GetChannelUser(channel->channel_info, user->handle_info)) || (uData->access < 400))
1318 {
1319 ss_reply("SSMSG_NO_ACCESS");
1320 return 0;
1321 }
1322
1323 if(argc < 2)
1324 return show_exceptions(user, cInfo);
1325
1326 for(i = 0; i < cInfo->exceptions->used; i++)
1327 {
1328 if(!irccasecmp(argv[1], cInfo->exceptions->list[i]))
1329 {
1330 found = i;
1331 break;
1332 }
1333 }
1334
1335 if(found == -1)
1336 {
1337 ss_reply("SSMSG_NO_SUCH_EXCEPTION", argv[1]);
1338 return 0;
1339 }
1340
1341 string_list_delete(cInfo->exceptions, i);
1342 ss_reply("SSMSG_EXCEPTION_DELETED", argv[1]);
1343
1344 return 1;
1345}
1346
1347static
1348SPAMSERV_FUNC(cmd_addbadword)
1349{
1350 struct chanInfo *cInfo = get_chanInfo(channel->name);
1351 struct userData *uData;
1352 unsigned int i;
1353
1354 if(!cInfo || !channel->channel_info)
1355 {
1356 ss_reply("SSMSG_NOT_REGISTERED", channel->name);
1357 return 0;
1358 }
1359
1360 if(CHECK_SUSPENDED(cInfo))
1361 {
1362 ss_reply("SSMSG_SUSPENDED", channel->name);
1363 return 0;
1364 }
1365
1366 if(!(uData = GetChannelUser(channel->channel_info, user->handle_info)) || (uData->access < 400))
1367 {
1368 ss_reply("SSMSG_NO_ACCESS");
1369 return 0;
1370 }
1371
1372 if(argc < 2)
1373 return show_badwords(user, cInfo);
1374
1375 if(cInfo->badwords->used == spamserv_conf.badword_max && !IsOper(user))
1376 {
1377 ss_reply("SSMSG_BADWORD_MAX", spamserv_conf.badword_max);
1378 return 0;
1379 }
1380
1381 if(strlen(argv[1]) < spamserv_conf.badword_min_len)
1382 {
1383 ss_reply("SSMSG_BADWORD_TOO_SHORT", spamserv_conf.badword_min_len);
1384 return 0;
1385 }
1386 else if(strlen(argv[1]) > spamserv_conf.badword_max_len)
1387 {
1388 ss_reply("SSMSG_BADWORD_TOO_LONG", spamserv_conf.badword_max_len);
1389 return 0;
1390 }
1391
1392 for(i = 0; i < cInfo->badwords->used; i++)
1393 {
1394 if(!irccasecmp(argv[1], cInfo->badwords->list[i]))
1395 {
1396 ss_reply("SSMSG_BADWORD_IN_LIST", argv[1]);
1397 return 0;
1398 }
1399 }
1400
1401 string_list_append(cInfo->badwords, strdup(argv[1]));
1402 ss_reply("SSMSG_BADWORD_ADDED", argv[1]);
1403
1404 return 1;
1405}
1406
1407static
1408SPAMSERV_FUNC(cmd_delbadword)
1409{
1410 struct chanInfo *cInfo = get_chanInfo(channel->name);
1411 struct userData *uData;
1412 unsigned int i;
1413 int found = -1;
1414
1415 if(!cInfo || !channel->channel_info)
1416 {
1417 ss_reply("SSMSG_NOT_REGISTERED", channel->name);
1418 return 0;
1419 }
1420
1421 if(CHECK_SUSPENDED(cInfo))
1422 {
1423 ss_reply("SSMSG_SUSPENDED", channel->name);
1424 return 0;
1425 }
1426
1427 if(!(uData = GetChannelUser(channel->channel_info, user->handle_info)) || (uData->access < 400))
1428 {
1429 ss_reply("SSMSG_NO_ACCESS");
1430 return 0;
1431 }
1432
1433 if(argc < 2)
1434 return show_badwords(user, cInfo);
1435
1436 for(i = 0; i < cInfo->badwords->used; i++)
1437 {
1438 if(!irccasecmp(argv[1], cInfo->badwords->list[i]))
1439 {
1440 found = i;
1441 break;
1442 }
1443 }
1444
1445 if(found == -1)
1446 {
1447 ss_reply("SSMSG_NO_SUCH_BADWORD", argv[1]);
1448 return 0;
1449 }
1450
1451 string_list_delete(cInfo->badwords, i);
1452 ss_reply("SSMSG_BADWORD_DELETED", argv[1]);
1453
1454 return 1;
1455}
1456
1457static
1458SPAMSERV_FUNC(cmd_set)
1459{
1460 struct chanInfo *cInfo = get_chanInfo(channel->name);
1461 struct userData *uData;
1462 struct svccmd *subcmd;
1463 char cmd_name[MAXLEN];
1464 unsigned int i;
1465
1466 if(!cInfo)
1467 {
1468 ss_reply("SSMSG_NOT_REGISTERED", channel->name);
1469 return 0;
1470 }
1471
1472 if(CHECK_SUSPENDED(cInfo))
1473 {
1474 ss_reply("SSMSG_SUSPENDED", channel->name);
1475 return 0;
1476 }
1477
1478 if(!(uData = GetChannelUser(channel->channel_info, user->handle_info)) || (uData->access < 400))
1479 {
1480 ss_reply("SSMSG_NO_ACCESS");
1481 return 0;
1482 }
1483
1484 if(argc < 2)
1485 {
1486 ss_reply("SSMSG_CHANNEL_OPTIONS");
1487
1488 for(i = 0; i < SET_SUBCMDS_SIZE; i++)
1489 {
1490 sprintf(cmd_name, "%s %s", cmd->name, set_subcommands[i]);
1491
1492 if((subcmd = dict_find(cmd->parent->commands, cmd_name, NULL)))
1493 subcmd->command->func(user, channel, 1, argv + 1, subcmd);
1494 }
1495
1496 return 1;
1497 }
1498
1499 sprintf(cmd_name, "%s %s", cmd->name, argv[1]);
1500 subcmd = dict_find(cmd->parent->commands, cmd_name, NULL);
1501
1502 if(!subcmd)
1503 {
1504 reply("SSMSG_INVALID_OPTION", argv[1], argv[0]);
1505 return 0;
1506 }
1507
1508 return subcmd->command->func(user, channel, argc - 1, argv + 1, subcmd);
1509}
1510
1511static
1512SPAMSERV_FUNC(opt_spamlimit)
1513{
1514 struct valueData values[] =
1515 {
1516 {"Users may send the same message $b2$b times.", 'a', 0},
1517 {"Users may send the same message $b3$b times.", 'b', 0},
1518 {"Users may send the same message $b4$b times.", 'c', 0},
1519 {"Users may send the same message $b5$b times.", 'd', 0},
1520 {"Users may send the same message $b6$b times.", 'e', 0}
1521 };
1522
1523 MULTIPLE_OPTION("SpamLimit ", "SpamLimit", ci_SpamLimit);
1524}
1525
1526static
1527SPAMSERV_FUNC(opt_advreaction)
1528{
1529 struct valueData values[] =
1530 {
1531 {"Kick on disallowed advertising.", 'k', 0},
1532 {"Kickban on disallowed advertising.", 'b', 0},
1533 {"Short timed ban on disallowed advertising.", 's', 0},
1534 {"Long timed ban on disallowed advertising.", 'l', 0},
1535 {"Kill on disallowed advertising.", 'd', 1}
1536 };
1537
1538 MULTIPLE_OPTION("AdvReaction ", "AdvReaction", ci_AdvReaction);
1539}
1540
1541static
1542SPAMSERV_FUNC(opt_warnreaction)
1543{
1544 struct valueData values[] =
1545 {
1546 {"Kick after warning.", 'k', 0},
1547 {"Kickban after warning.", 'b', 0},
1548 {"Short timed ban after warning.", 's', 0},
1549 {"Long timed ban after warning.", 'l', 0},
1550 {"Kill after warning.", 'd', 1}
1551 };
1552
1553 MULTIPLE_OPTION("WarnReaction ", "WarnReaction", ci_WarnReaction);
1554}
1555
1556static
1557SPAMSERV_FUNC(opt_badreaction)
1558{
1559 struct valueData values[] =
1560 {
1561 {"Kick on disallowed badwords.", 'k', 0},
1562 {"Kickban on disallowed badwords.", 'b', 0},
1563 {"Short timed ban on disallowed badwords.", 's', 0},
1564 {"Long timed ban on disallowed badwords.", 'l', 0},
1565 {"Kill on disallowed badwords.", 'd', 1}
1566 };
1567
1568 MULTIPLE_OPTION("BadReaction ", "BadReaction", ci_BadReaction);
1569}
1570
1571static
1572SPAMSERV_FUNC(opt_advscan)
1573{
1574 BINARY_OPTION("AdvScan ", CHAN_ADV_SCAN);
1575}
1576
1577static
1578SPAMSERV_FUNC(opt_spamscan)
1579{
1580 BINARY_OPTION("SpamScan ", CHAN_SPAMSCAN);
1581}
1582
1583static
1584SPAMSERV_FUNC(opt_badwordscan)
1585{
1586 BINARY_OPTION("BadWordScan ", CHAN_BADWORDSCAN);
1587}
1588
1589static
1590SPAMSERV_FUNC(opt_chanfloodscan)
1591{
1592 BINARY_OPTION("ChanFloodScan ", CHAN_CHANFLOODSCAN);
1593}
1594
1595static
1596SPAMSERV_FUNC(opt_joinflood)
1597{
1598 BINARY_OPTION("JoinFloodScan ", CHAN_JOINFLOOD);
1599}
1600
1601static
1602SPAMSERV_FUNC(opt_scanops)
1603{
1604 BINARY_OPTION("ScanChanOps ", CHAN_SCAN_CHANOPS);
1605}
1606
1607static
1608SPAMSERV_FUNC(opt_scanhalfops)
1609{
1610 BINARY_OPTION("ScanHalfOps ", CHAN_SCAN_HALFOPS);
1611}
1612
1613static
1614SPAMSERV_FUNC(opt_scanvoiced)
1615{
1616 BINARY_OPTION("ScanVoiced ", CHAN_SCAN_VOICED);
1617}
1618
1619static void
1620to_lower(char *message)
1621{
1622 unsigned int i, diff = 'a' - 'A';
1623
1624 for(i = 0; i < strlen(message); i++)
1625 {
1626 if((message[i] >= 'A') && (message[i] <= 'Z'))
1627 message[i] = message[i] + diff;
1628 }
1629}
1630
1631static char *
1632strip_mirc_codes(char *text)
1633{
1634 // taken from xchat and modified
1635 int nc = 0, i = 0, col = 0, len = strlen(text);
1636 static char new_str[MAXLEN];
1637
1638 while(len > 0)
1639 {
1640 if((col && isdigit(*text) && nc < 2) ||
1641 (col && *text == ',' && isdigit(*(text + 1)) && nc < 3))
1642 {
1643 nc++;
1644
1645 if(*text == ',')
1646 nc = 0;
1647 }
1648 else
1649 {
1650 col = 0;
1651
1652 switch(*text)
1653 {
1654 case '\003':
1655 col = 1;
1656 nc = 0;
1657 break;
1658 case '\002':
1659 case '\022':
1660 case '\026':
1661 case '\031':
1662 case '\037':
1663 break;
1664 default:
1665 new_str[i] = *text;
1666 i++;
1667 }
1668 }
1669
1670 text++;
1671 len--;
1672 }
1673
1674 new_str[i] = '\0';
1675
1676 return new_str;
1677}
1678
1679static int
1680is_in_exception_list(struct chanInfo *cInfo, char *message)
1681{
1682 unsigned int i;
1683
1684 for(i = 0; i < cInfo->exceptions->used; i++)
1685 if(strstr(message, cInfo->exceptions->list[i]))
1686 return 1;
1687
1688 return 0;
1689}
1690
1691static int
1692is_in_badword_list(struct chanInfo *cInfo, char *message)
1693{
1694 unsigned int i;
1695
1696 for(i = 0; i < cInfo->badwords->used; i++)
1697 if(strstr(message, cInfo->badwords->list[i]))
1698 return 1;
1699
1700 return 0;
1701}
1702
1703static int
1704check_badwords(struct chanInfo *cInfo, char *message)
1705{
1706 if(spamserv_conf.strip_mirc_codes)
1707 message = strip_mirc_codes(message);
1708
1709 /* This needs improving */
1710 if(is_in_exception_list(cInfo, message))
1711 return 0;
1712
1713 if(is_in_badword_list(cInfo, message))
1714 return 1;
1715
1716 return 0;
1717}
1718
1719static int
1720check_advertising(struct chanInfo *cInfo, char *message)
1721{
1722 unsigned int i = 0;
1723
1724 if(spamserv_conf.strip_mirc_codes)
1725 message = strip_mirc_codes(message);
1726
1727 if(is_in_exception_list(cInfo, message))
1728 return 0;
1729
1730 while(message[i] != 0)
1731 {
1732 if(message[i] == '#')
1733 {
1734 char channelname[CHANNELLEN];
1735 unsigned int j = 0;
1736
1737 if(!spamserv_conf.adv_chan_must_exist)
1738 return 1;
1739
1740 /* only return 1, if the channel does exist */
1741
1742 while((message[i] != 0) && (message[i] != ' '))
1743 {
1744 channelname[j] = message[i];
1745 i++;
1746 j++;
1747 }
1748
1749 channelname[j] = '\0';
1750
1751 if(GetChannel(channelname))
1752 return 1;
1753 }
1754 else if((message[i] == 'w') && (message[i+1] == 'w') && (message[i+2] == 'w') && (message[i+3] == '.'))
1755 return 1;
1756 else if((message[i] == 'h') && (message[i+1] == 't') && (message[i+2] == 't') && (message[i+3] == 'p') && (message[i+4] == ':'))
1757 return 1;
1758 else if((message[i] == 'f') && (message[i+1] == 't') && (message[i+2] == 'p') && ((message[i+3] == '.') || (message[i+3] == ':')))
1759 return 1;
1760
1761 i++;
1762 }
1763
1764 return 0;
1765}
1766
1767static void
1768spamserv_punish(struct chanNode *channel, struct userNode *user, time_t expires, char *reason, int ban)
1769{
1770 if(ban)
1771 {
1772 struct mod_chanmode change;
1773 char *hostmask = generate_hostmask(user, GENMASK_STRICT_HOST | GENMASK_ANY_IDENT);
1774
1775 sanitize_ircmask(hostmask);
1776
1777 if(expires)
1778 add_channel_ban(channel->channel_info, hostmask, spamserv->nick, now, now, now + expires, reason);
1779
1780 mod_chanmode_init(&change);
1781 change.argc = 1;
1782 change.args[0].mode = MODE_BAN;
1783 change.args[0].u.hostmask = hostmask;
1784 mod_chanmode_announce(spamserv, channel, &change);
1785
1786 free(hostmask);
1787
1788 spamserv_debug(SSMSG_DEBUG_BAN, user->nick, channel->name, reason);
1789 }
1790 else
1791 spamserv_debug(SSMSG_DEBUG_KICK, user->nick, channel->name, reason);
1792
1793 KickChannelUser(user, channel, spamserv, reason);
1794}
1795
1796void
1797spamserv_channel_message(struct chanNode *channel, struct userNode *user, char *text)
1798{
1799 struct chanInfo *cInfo;
1800 struct userInfo *uInfo;
1801 struct spamNode *sNode;
1802 struct floodNode *fNode;
1803 unsigned int violation = 0;
1804 char reason[MAXLEN];
1805
1806 /* make sure: spamserv is not disabled; x3 is running; spamserv is in the chan; chan is regged, user does exist */
1807 if(!spamserv || quit_services || !GetUserMode(channel, spamserv) || !(cInfo = get_chanInfo(channel->name)) || !(uInfo = get_userInfo(user->nick)))
1808 return;
1809
1810 if(!CHECK_CHANOPS(cInfo))
1811 {
1812 struct modeNode *mn = GetUserMode(channel, user);
1813 if(mn->modes & MODE_CHANOP)
1814 return;
1815 }
1816
1817 if(!CHECK_HALFOPS(cInfo))
1818 {
1819 struct modeNode *mn = GetUserMode(channel, user);
1820 if(mn->modes & MODE_HALFOP)
1821 return;
1822 }
1823
1824 if(!CHECK_VOICED(cInfo))
1825 {
1826 struct modeNode *mn = GetUserMode(channel, user);
1827 if((mn->modes & MODE_VOICE) && !(mn->modes & MODE_CHANOP) && !(mn->modes & MODE_HALFOP))
1828 return;
1829 }
1830
1831 to_lower(text);
1832
1833 if(CHECK_SPAM(cInfo))
1834 {
1835 if(!(sNode = uInfo->spam))
1836 {
1837 spamserv_create_spamNode(channel, uInfo, text);
1838 }
1839 else
1840 {
1841 for(; sNode; sNode = sNode->next)
1842 if(sNode->channel == channel)
1843 break;
1844
1845 if(!sNode)
1846 {
1847 spamserv_create_spamNode(channel, uInfo, text);
1848 }
1849 else
1850 {
1851 unsigned long crc = crc32(text);
1852
1853 if(crc == sNode->crc32)
1854 {
1855 unsigned int spamlimit = 2;
1856 sNode->count++;
1857
1858 switch(cInfo->info[ci_SpamLimit])
1859 {
1860 case 'a': spamlimit = 2; break;
1861 case 'b': spamlimit = 3; break;
1862 case 'c': spamlimit = 4; break;
1863 case 'd': spamlimit = 5; break;
1864 case 'e': spamlimit = 6; break;
1865 }
1866
1867 if(sNode->count == spamlimit)
1868 {
1869 uInfo->warnlevel += SPAM_WARNLEVEL;
1870
1871 if(uInfo->warnlevel < MAX_WARNLEVEL) {
1872 if (spamserv_conf.network_rules)
1873 spamserv_notice(user, "SSMSG_WARNING_RULES_T", SSMSG_SPAM, spamserv_conf.network_rules);
1874 else
1875 spamserv_notice(user, "SSMSG_WARNING_T", SSMSG_SPAM, spamserv_conf.network_rules);
1876 }
1877 }
1878 else if(sNode->count > spamlimit)
1879 {
1880 switch(cInfo->info[ci_WarnReaction])
1881 {
1882 case 'k': uInfo->flags |= USER_KICK; break;
1883 case 'b': uInfo->flags |= USER_KICKBAN; break;
1884 case 's': uInfo->flags |= USER_SHORT_TBAN; break;
1885 case 'l': uInfo->flags |= USER_LONG_TBAN; break;
1886 case 'd': uInfo->flags |= CHECK_KILLED(uInfo) ? USER_GLINE : USER_KILL; break;
1887 }
1888
1889 spamserv_delete_spamNode(uInfo, sNode);
1890 uInfo->warnlevel += SPAM_WARNLEVEL;
1891 violation = 1;
1892 }
1893 }
1894 else
1895 {
1896 sNode->crc32 = crc;
1897 sNode->count = 1;
1898 }
1899 }
1900 }
1901 }
1902
1903 if(CHECK_FLOOD(cInfo))
1904 {
1905 if(!(fNode = uInfo->flood))
1906 {
1907 spamserv_create_floodNode(channel, user, &uInfo->flood);
1908 }
1909 else
1910 {
1911 for(; fNode; fNode = fNode->next)
1912 if(fNode->channel == channel)
1913 break;
1914
1915 if(!fNode)
1916 {
1917 spamserv_create_floodNode(channel, user, &uInfo->flood);
1918 }
1919 else
1920 {
1921 if(((now - fNode->time) < FLOOD_EXPIRE))
1922 {
1923 fNode->count++;
1924
1925 if(fNode->count == FLOOD_MAX_LINES - 1)
1926 {
1927 uInfo->warnlevel += FLOOD_WARNLEVEL;
1928
1929 if(uInfo->warnlevel < MAX_WARNLEVEL) {
1930 if (spamserv_conf.network_rules)
1931 spamserv_notice(user, "SSMSG_WARNING_RULES_T", SSMSG_FLOOD, spamserv_conf.network_rules);
1932 else
1933 spamserv_notice(user, "SSMSG_WARNING_T", SSMSG_FLOOD, spamserv_conf.network_rules);
1934 }
1935 }
1936 else if(fNode->count > FLOOD_MAX_LINES)
1937 {
1938 switch(cInfo->info[ci_WarnReaction])
1939 {
1940 case 'k': uInfo->flags |= USER_KICK; break;
1941 case 'b': uInfo->flags |= USER_KICKBAN; break;
1942 case 's': uInfo->flags |= USER_SHORT_TBAN; break;
1943 case 'l': uInfo->flags |= USER_LONG_TBAN; break;
1944 case 'd': uInfo->flags |= CHECK_KILLED(uInfo) ? USER_GLINE : USER_KILL; break;
1945 }
1946
1947 spamserv_delete_floodNode(&uInfo->flood, fNode);
1948 uInfo->warnlevel += FLOOD_WARNLEVEL;
1949 violation = 2;
1950 }
1951 }
1952
1953 fNode->time = now;
1954 }
1955 }
1956 }
1957
1958 if(CHECK_BADWORDSCAN(cInfo) && check_badwords(cInfo, text))
1959 {
1960 if(CHECK_BAD_WARNED(uInfo))
1961 {
1962 switch(cInfo->info[ci_BadReaction])
1963 {
1964 case 'k': uInfo->flags |= USER_KICK; break;
1965 case 'b': uInfo->flags |= USER_KICKBAN; break;
1966 case 's': uInfo->flags |= USER_SHORT_TBAN; break;
1967 case 'l': uInfo->flags |= USER_LONG_TBAN; break;
1968 case 'd': uInfo->flags |= CHECK_KILLED(uInfo) ? USER_GLINE : USER_KILL; break;
1969 }
1970
1971 uInfo->warnlevel += BAD_WARNLEVEL;
1972 violation = 4;
1973 }
1974 else
1975 {
1976 uInfo->flags |= USER_BAD_WARNED;
1977 uInfo->lastbad = now;
1978 uInfo->warnlevel += BAD_WARNLEVEL;
1979
1980 if(uInfo->warnlevel < MAX_WARNLEVEL) {
1981 if (spamserv_conf.network_rules)
1982 spamserv_notice(user, "SSMSG_WARNING_RULES_T", SSMSG_BAD, spamserv_conf.network_rules);
1983 else
1984 spamserv_notice(user, "SSMSG_WARNING_T", SSMSG_BAD, spamserv_conf.network_rules);
1985 }
1986 }
1987 }
1988
1989 if(CHECK_ADV(cInfo) && check_advertising(cInfo, text))
1990 {
1991 if(CHECK_ADV_WARNED(uInfo))
1992 {
1993 switch(cInfo->info[ci_AdvReaction])
1994 {
1995 case 'k': uInfo->flags |= USER_KICK; break;
1996 case 'b': uInfo->flags |= USER_KICKBAN; break;
1997 case 's': uInfo->flags |= USER_SHORT_TBAN; break;
1998 case 'l': uInfo->flags |= USER_LONG_TBAN; break;
1999 case 'd': uInfo->flags |= CHECK_KILLED(uInfo) ? USER_GLINE : USER_KILL; break;
2000 }
2001
2002 uInfo->warnlevel += ADV_WARNLEVEL;
2003 violation = 3;
2004 }
2005 else
2006 {
2007 uInfo->flags |= USER_ADV_WARNED;
2008 uInfo->lastadv = now;
2009 uInfo->warnlevel += ADV_WARNLEVEL;
2010
2011 if(uInfo->warnlevel < MAX_WARNLEVEL) {
2012 if (spamserv_conf.network_rules)
2013 spamserv_notice(user, "SSMSG_WARNING_RULES_T", SSMSG_ADV, spamserv_conf.network_rules);
2014 else
2015 spamserv_notice(user, "SSMSG_WARNING_T", SSMSG_ADV, spamserv_conf.network_rules);
2016 }
2017 }
2018 }
2019
2020 if(!CHECK_WARNED(uInfo) && !CHECK_KILL(uInfo) && !CHECK_GLINE(uInfo) && uInfo->warnlevel == MAX_WARNLEVEL)
2021 {
2022 uInfo->flags |= USER_WARNED;
2023 if (spamserv_conf.network_rules)
2024 snprintf(reason, sizeof(reason), SSMSG_WARNING_RULES_2, spamserv_conf.network_rules);
2025 else
2026 snprintf(reason, sizeof(reason), SSMSG_WARNING_2);
2027 irc_notice(spamserv, user->numeric, reason);
2028 irc_privmsg(spamserv, user->numeric, reason);
2029 }
2030 else if(uInfo->warnlevel > MAX_WARNLEVEL)
2031 {
2032 if(CHECK_KILLED(uInfo))
2033 uInfo->flags |= USER_GLINE;
2034 else
2035 uInfo->flags |= USER_KILL;
2036
2037 violation = 5;
2038 }
2039
2040 if(!violation)
2041 return;
2042
2043 switch(violation)
2044 {
2045
2046 case 1: snprintf(reason, sizeof(reason), spamserv_conf.network_rules ? SSMSG_WARNING_RULES : SSMSG_WARNING, SSMSG_SPAM, spamserv_conf.network_rules); break;
2047 case 2: snprintf(reason, sizeof(reason), spamserv_conf.network_rules ? SSMSG_WARNING_RULES : SSMSG_WARNING, SSMSG_FLOOD, spamserv_conf.network_rules); break;
2048 case 3: snprintf(reason, sizeof(reason), spamserv_conf.network_rules ? SSMSG_WARNING_RULES : SSMSG_WARNING, SSMSG_ADV, spamserv_conf.network_rules); break;
2049 case 4: snprintf(reason, sizeof(reason), spamserv_conf.network_rules ? SSMSG_WARNING_RULES : SSMSG_WARNING, SSMSG_BAD, spamserv_conf.network_rules); break;
2050 default: snprintf(reason, sizeof(reason), spamserv_conf.network_rules ? SSMSG_WARNING_RULES_2 : SSMSG_WARNING_2, spamserv_conf.network_rules); break;
2051 }
2052
2053 if(CHECK_GLINE(uInfo))
2054 {
2055 int size = strlen(user->hostname) + 3;
2056 char *mask = alloca(size);
2057 snprintf(mask, size, "*@%s", user->hostname);
2058 gline_add(spamserv->nick, mask, spamserv_conf.gline_duration, reason, now, 1, 0);
2059 spamserv_debug(SSMSG_DEBUG_GLINE, user->nick, user->hostname, channel->name);
2060 }
2061 else if(CHECK_KILL(uInfo))
2062 {
2063 DelUser(user, spamserv, 1, reason);
2064 spamserv_debug(SSMSG_DEBUG_KILL, user->nick, channel->name);
2065 }
2066 else if(CHECK_LONG_TBAN(uInfo))
2067 {
2068 spamserv_punish(channel, user, spamserv_conf.long_ban_duration, reason, 1);
2069 }
2070 else if(CHECK_SHORT_TBAN(uInfo))
2071 {
2072 spamserv_punish(channel, user, spamserv_conf.short_ban_duration, reason, 1);
2073 }
2074 else if(CHECK_KICKBAN(uInfo))
2075 {
2076 spamserv_punish(channel, user, 0, reason, 1);
2077 }
2078 else if(CHECK_KICK(uInfo))
2079 {
2080 spamserv_punish(channel, user, 0, reason, 0);
2081 }
2082}
2083
2084static int
2085spamserv_saxdb_read(struct dict *database)
2086{
2087 dict_iterator_t it;
2088 struct record_data *hir;
2089 struct chanNode *channel;
2090 struct chanInfo *cInfo;
2091 struct string_list *strlist, *strlist2;
2092 unsigned int flags;
2093 char *str, *info;
2094 time_t expiry;
2095
2096 for(it = dict_first(database); it; it = iter_next(it))
2097 {
2098 hir = iter_data(it);
2099
2100 if(hir->type != RECDB_OBJECT)
2101 {
2102 log_module(SS_LOG, LOG_WARNING, "Unexpected rectype %d for %s.", hir->type, iter_key(it));
2103 continue;
2104 }
2105
2106 channel = GetChannel(iter_key(it));
3ec42e29 2107
63c95a47 2108 strlist = database_get_data(hir->d.object, KEY_EXCEPTIONS, RECDB_STRING_LIST);
2109 strlist2 = database_get_data(hir->d.object, KEY_BADWORDS, RECDB_STRING_LIST);
2110
2111 str = database_get_data(hir->d.object, KEY_FLAGS, RECDB_QSTRING);
2112 flags = str ? atoi(str) : 0;
2113
2114 info = database_get_data(hir->d.object, KEY_INFO, RECDB_QSTRING);
2115
2116 str = database_get_data(hir->d.object, KEY_EXPIRY, RECDB_QSTRING);
2117 expiry = str ? strtoul(str, NULL, 0) : 0;
2118
2119 if(channel && info)
2120 {
2121 if((cInfo = spamserv_register_channel(channel, strlist, strlist2, flags, info)))
2122 {
2123 /* if the channel is suspended and expiry = 0 it means: channel will
2124 never expire ! it does NOT mean, the channel is not suspended */
2125 if(CHECK_SUSPENDED(cInfo) && expiry && (expiry < now))
2126 {
2127 cInfo->flags &= ~CHAN_SUSPENDED;
2128 spamserv_join_channel(cInfo->channel);
2129 }
2130 else if(!CHECK_SUSPENDED(cInfo))
2131 spamserv_join_channel(cInfo->channel);
2132 else
2133 cInfo->suspend_expiry = expiry;
2134 }
2135 }
2136 else
2137 log_module(SS_LOG, LOG_ERROR, "Couldn't register channel %s. Channel or info invalid.", iter_key(it));
2138 }
2139
2140 return 0;
2141}
2142
2143static int
2144spamserv_saxdb_write(struct saxdb_context *ctx)
2145{
2146 dict_iterator_t it;
2147
2148 for(it = dict_first(registered_channels_dict); it; it = iter_next(it))
2149 {
2150 struct chanInfo *cInfo = iter_data(it);
2151
2152 saxdb_start_record(ctx, cInfo->channel->name, 1);
2153
2154 if(cInfo->exceptions->used)
2155 saxdb_write_string_list(ctx, KEY_EXCEPTIONS, cInfo->exceptions);
2156
2157 if(cInfo->badwords->used)
2158 saxdb_write_string_list(ctx, KEY_BADWORDS, cInfo->badwords);
2159
2160 if(cInfo->flags)
2161 saxdb_write_int(ctx, KEY_FLAGS, cInfo->flags);
2162
2163 saxdb_write_string(ctx, KEY_INFO, cInfo->info);
2164
2165 if(cInfo->suspend_expiry)
2166 saxdb_write_int(ctx, KEY_EXPIRY, cInfo->suspend_expiry);
2167
2168 saxdb_end_record(ctx);
2169 }
2170 return 0;
2171}
2172
2173static void
2174spamserv_conf_read(void)
2175{
2176 dict_t conf_node;
2177 const char *str;
2178
2179 if(!(conf_node = conf_get_data(SPAMSERV_CONF_NAME, RECDB_OBJECT)))
2180 {
2181 log_module(SS_LOG, LOG_ERROR, "config node `%s' is missing or has wrong type.", SPAMSERV_CONF_NAME);
2182 return;
2183 }
2184
2185 str = database_get_data(conf_node, KEY_DEBUG_CHANNEL, RECDB_QSTRING);
2186
2187 if(str)
2188 {
2189 spamserv_conf.debug_channel = AddChannel(str, now, "+tinms", NULL, NULL);
2190
2191 if(spamserv_conf.debug_channel)
2192 spamserv_join_channel(spamserv_conf.debug_channel);
2193 }
2194 else
2195 {
2196 spamserv_conf.debug_channel = NULL;
2197 }
2198
2199 spamserv_conf.global_exceptions = database_get_data(conf_node, KEY_GLOBAL_EXCEPTIONS, RECDB_STRING_LIST);
2200
2201 spamserv_conf.global_badwords = database_get_data(conf_node, KEY_GLOBAL_BADWORDS, RECDB_STRING_LIST);
2202
2203 str = database_get_data(conf_node, KEY_NETWORK_RULES, RECDB_QSTRING);
2204 spamserv_conf.network_rules = str ? str : NULL;
2205
2206 str = database_get_data(conf_node, KEY_TRIGGER, RECDB_QSTRING);
2207 spamserv_conf.trigger = str ? str[0] : 0;
2208
2209 str = database_get_data(conf_node, KEY_SHORT_BAN_DURATION, RECDB_QSTRING);
2210 spamserv_conf.short_ban_duration = str ? ParseInterval(str) : ParseInterval("15m");
2211
2212 str = database_get_data(conf_node, KEY_LONG_BAN_DURATION, RECDB_QSTRING);
2213 spamserv_conf.long_ban_duration = str ? ParseInterval(str) : ParseInterval("1h");
2214
2215 str = database_get_data(conf_node, KEY_GLINE_DURATION, RECDB_QSTRING);
2216 spamserv_conf.gline_duration = str ? ParseInterval(str) : ParseInterval("1h");
2217
2218 str = database_get_data(conf_node, KEY_EXCEPTION_MAX, RECDB_QSTRING);
2219 spamserv_conf.exception_max = str ? strtoul(str, NULL, 0) : 10;
2220
2221 str = database_get_data(conf_node, KEY_EXCEPTION_MIN_LEN, RECDB_QSTRING);
2222 spamserv_conf.exception_min_len = str ? strtoul(str, NULL, 0) : 4;
2223
2224 str = database_get_data(conf_node, KEY_EXCEPTION_MAX_LEN, RECDB_QSTRING);
2225 spamserv_conf.exception_max_len = str ? strtoul(str, NULL, 0) : 15;
2226
2227 str = database_get_data(conf_node, KEY_BADWORD_MAX, RECDB_QSTRING);
2228 spamserv_conf.badword_max = str ? strtoul(str, NULL, 0) : 10;
2229
2230 str = database_get_data(conf_node, KEY_BADWORD_MIN_LEN, RECDB_QSTRING);
2231 spamserv_conf.badword_min_len = str ? strtoul(str, NULL, 0) : 4;
2232
2233 str = database_get_data(conf_node, KEY_BADWORD_MAX_LEN, RECDB_QSTRING);
2234 spamserv_conf.badword_max_len = str ? strtoul(str, NULL, 0) : 15;
2235
2236 str = database_get_data(conf_node, KEY_ADV_CHAN_MUST_EXIST, RECDB_QSTRING);
2237 spamserv_conf.adv_chan_must_exist = str ? enabled_string(str) : 1;
2238
2239 str = database_get_data(conf_node, KEY_STRIP_MIRC_CODES, RECDB_QSTRING);
2240 spamserv_conf.strip_mirc_codes = str ? enabled_string(str) : 0;
2241
2242 str = database_get_data(conf_node, KEY_ALLOW_MOVE_MERGE, RECDB_QSTRING);
2243 spamserv_conf.allow_move_merge = str ? enabled_string(str) : 0;
2244}
2245
2246static void
2247spamserv_db_cleanup(void)
2248{
2249 dict_iterator_t it;
2250
2251 while((it = dict_first(registered_channels_dict)))
2252 {
2253 spamserv_unregister_channel(iter_data(it));
2254 }
2255
2256 while((it = dict_first(killed_users_dict)))
2257 {
2258 free(iter_data(it));
2259 }
2260
2261 dict_delete(registered_channels_dict);
2262 dict_delete(connected_users_dict);
2263 dict_delete(killed_users_dict);
2264}
2265
2266void
2267init_spamserv(const char *nick)
2268{
2269 struct chanNode *chan;
2270 unsigned int i;
2271
2272 if(!nick)
2273 return;
2274
2275 const char *modes = conf_get_data("services/spamserv/modes", RECDB_QSTRING);
2276 spamserv = AddService(nick, modes ? modes : NULL, "Anti Spam Services", NULL);
2277 spamserv_service = service_register(spamserv);
2278
2279 conf_register_reload(spamserv_conf_read);
2280
2281 SS_LOG = log_register_type("SpamServ", "file:spamserv.log");
2282
2283 registered_channels_dict = dict_new();
2284 connected_users_dict = dict_new();
2285 killed_users_dict = dict_new();
2286
3ec42e29 2287 saxdb_register("SpamServ", spamserv_saxdb_read, spamserv_saxdb_write);
2288
63c95a47 2289 reg_new_user_func(spamserv_new_user_func);
2290 reg_del_user_func(spamserv_del_user_func);
2291 reg_nick_change_func(spamserv_nick_change_func);
2292 reg_join_func(spamserv_user_join);
2293 reg_part_func(spamserv_user_part);
2294
2295 timeq_add(now + FLOOD_TIMEQ_FREQ, timeq_flood, NULL);
2296 timeq_add(now + JOINFLOOD_TIMEQ_FREQ, timeq_joinflood, NULL);
2297 timeq_add(now + ADV_TIMEQ_FREQ, timeq_adv, NULL);
2298 timeq_add(now + BAD_TIMEQ_FREQ, timeq_bad, NULL);
2299 timeq_add(now + WARNLEVEL_TIMEQ_FREQ, timeq_warnlevel, NULL);
2300 timeq_add(now + KILL_TIMEQ_FREQ, timeq_kill, NULL);
2301
2302 spamserv_module = module_register("SpamServ", SS_LOG, "spamserv.help", NULL);
2303 modcmd_register(spamserv_module, "REGISTER", cmd_register, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, "flags", "+acceptchan,+helping", NULL);
2304 modcmd_register(spamserv_module, "UNREGISTER", cmd_unregister, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, "flags", "+loghostmask", NULL);
2305 modcmd_register(spamserv_module, "ADDEXCEPTION", cmd_addexception, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2306 modcmd_register(spamserv_module, "DELEXCEPTION", cmd_delexception, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2307 modcmd_register(spamserv_module, "ADDBADWORD", cmd_addbadword, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2308 modcmd_register(spamserv_module, "DELBADWORD", cmd_delbadword, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2309 modcmd_register(spamserv_module, "STATUS", cmd_status, 1, 0, NULL);
2310 modcmd_register(spamserv_module, "SET", cmd_set, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2311 modcmd_register(spamserv_module, "SET SPAMLIMIT", opt_spamlimit, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2312 modcmd_register(spamserv_module, "SET BADREACTION", opt_badreaction, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2313 modcmd_register(spamserv_module, "SET ADVREACTION", opt_advreaction, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2314 modcmd_register(spamserv_module, "SET WARNREACTION", opt_warnreaction, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2315 modcmd_register(spamserv_module, "SET ADVSCAN", opt_advscan, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2316 modcmd_register(spamserv_module, "SET BADWORDSCAN", opt_badwordscan, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2317 modcmd_register(spamserv_module, "SET SPAMSCAN", opt_spamscan, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2318 modcmd_register(spamserv_module, "SET CHANFLOODSCAN", opt_chanfloodscan, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2319 modcmd_register(spamserv_module, "SET JOINFLOODSCAN", opt_joinflood, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2320 modcmd_register(spamserv_module, "SET SCANCHANOPS", opt_scanops, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2321 modcmd_register(spamserv_module, "SET SCANHALFOPS", opt_scanhalfops, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2322 modcmd_register(spamserv_module, "SET SCANVOICED", opt_scanvoiced, 1, MODCMD_REQUIRE_AUTHED|MODCMD_REQUIRE_CHANNEL, NULL);
2323
2324 spamserv_service->trigger = spamserv_conf.trigger;
2325
2326
2327 if (autojoin_channels && spamserv) {
2328 for (i = 0; i < autojoin_channels->used; i++) {
2329 chan = AddChannel(autojoin_channels->list[i], now, "+nt", NULL, NULL);
2330 AddChannelUser(spamserv, chan)->modes |= MODE_CHANOP;
2331 }
2332 }
2333
63c95a47 2334 reg_exit_func(spamserv_db_cleanup);
2335 message_register_table(msgtab);
2336 crc32_init();
2337}
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