1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
19 #include "inspircd_config.h"
21 #include "inspircd_io.h"
24 #include <sys/errno.h>
28 #include <ext/hash_map>
45 #include "inspstring.h"
46 #include "helperfuncs.h"
49 #include "cull_list.h"
51 extern ServerConfig *Config;
54 extern std::vector<Module*> modules;
55 extern std::vector<ircd_module*> factory;
56 extern ServerConfig* Config;
57 extern user_hash clientlist;
58 extern std::vector<userrec*> local_users;
60 /* Version two, now with optimized expiry!
62 * Because the old way was horrendously slow, the new way of expiring xlines is very
63 * very efficient. I have improved the efficiency of the algorithm in two ways:
65 * (1) There are now two lists of items for each linetype. One list holds temporary
66 * items, and the other list holds permenant items (ones which will expire).
67 * Items which are on the permenant list are NEVER checked at all by the
68 * expire_lines() function.
69 * (2) The temporary xline lists are always kept in strict numerical order, keyed by
70 * current time + duration. This means that the line which is due to expire the
71 * soonest is always pointed at by vector::begin(), so a simple while loop can
72 * very efficiently, very quickly and above all SAFELY pick off the first few
73 * items in the vector which need zapping.
82 /* Lists for temporary lines with an expiry time */
84 std::vector<KLine> klines;
85 std::vector<GLine> glines;
86 std::vector<ZLine> zlines;
87 std::vector<QLine> qlines;
88 std::vector<ELine> elines;
90 /* Seperate lists for perm XLines that isnt checked by expiry functions */
92 std::vector<KLine> pklines;
93 std::vector<GLine> pglines;
94 std::vector<ZLine> pzlines;
95 std::vector<QLine> pqlines;
96 std::vector<ELine> pelines;
99 bool GSortComparison ( const GLine one, const GLine two );
100 bool ZSortComparison ( const ZLine one, const ZLine two );
101 bool ESortComparison ( const ELine one, const ELine two );
102 bool QSortComparison ( const QLine one, const QLine two );
103 bool KSortComparison ( const KLine one, const KLine two );
105 // Reads the default bans from the config file.
106 // only a very small number of bans are defined
107 // this way these days, such as qlines against
108 // services nicks, etc.
110 bool InitXLine(const char* tag)
115 bool DoneXLine(const char* tag)
117 apply_lines(APPLY_ALL);
121 bool DoZLine(const char* tag, char** entries, void** values, int* types)
123 char* reason = (char*)values[0];
124 char* ipmask = (char*)values[1];
125 add_zline(0,"<Config>",reason,ipmask);
126 log(DEBUG,"Read Z line (badip tag): ipmask=%s reason=%s",ipmask,reason);
130 bool DoQLine(const char* tag, char** entries, void** values, int* types)
132 char* reason = (char*)values[0];
133 char* nick = (char*)values[1];
134 add_qline(0,"<Config>",reason,nick);
135 log(DEBUG,"Read Q line (badnick tag): nick=%s reason=%s",nick,reason);
139 bool DoKLine(const char* tag, char** entries, void** values, int* types)
141 char* reason = (char*)values[0];
142 char* host = (char*)values[1];
143 add_kline(0,"<Config>",reason,host);
144 log(DEBUG,"Read K line (badhost tag): host=%s reason=%s",host,reason);
148 bool DoELine(const char* tag, char** entries, void** values, int* types)
150 char* reason = (char*)values[0];
151 char* host = (char*)values[1];
152 add_eline(0,"<Config>",reason,host);
153 log(DEBUG,"Read E line (exception tag): host=%s reason=%s",host,reason);
159 bool add_gline(long duration, const char* source,const char* reason,const char* hostmask)
161 bool ret = del_gline(hostmask);
163 item.duration = duration;
164 strlcpy(item.hostmask,hostmask,199);
165 strlcpy(item.reason,reason,MAXBUF);
166 strlcpy(item.source,source,255);
168 item.set_time = TIME;
171 glines.push_back(item);
172 sort(glines.begin(), glines.end(),GSortComparison);
176 pglines.push_back(item);
181 // adds an e:line (exception to bans)
183 bool add_eline(long duration, const char* source, const char* reason, const char* hostmask)
185 bool ret = del_eline(hostmask);
187 item.duration = duration;
188 strlcpy(item.hostmask,hostmask,199);
189 strlcpy(item.reason,reason,MAXBUF);
190 strlcpy(item.source,source,255);
192 item.set_time = TIME;
195 elines.push_back(item);
196 sort(elines.begin(), elines.end(),ESortComparison);
200 pelines.push_back(item);
207 bool add_qline(long duration, const char* source, const char* reason, const char* nickname)
209 bool ret = del_qline(nickname);
211 item.duration = duration;
212 strlcpy(item.nick,nickname,63);
213 strlcpy(item.reason,reason,MAXBUF);
214 strlcpy(item.source,source,255);
216 item.is_global = false;
217 item.set_time = TIME;
220 qlines.push_back(item);
221 sort(qlines.begin(), qlines.end(),QSortComparison);
225 pqlines.push_back(item);
232 bool add_zline(long duration, const char* source, const char* reason, const char* ipaddr)
234 bool ret = del_zline(ipaddr);
236 item.duration = duration;
237 if (strchr(ipaddr,'@'))
239 while (*ipaddr != '@')
243 strlcpy(item.ipaddr,ipaddr,39);
244 strlcpy(item.reason,reason,MAXBUF);
245 strlcpy(item.source,source,255);
247 item.is_global = false;
248 item.set_time = TIME;
251 zlines.push_back(item);
252 sort(zlines.begin(), zlines.end(),ZSortComparison);
256 pzlines.push_back(item);
263 bool add_kline(long duration, const char* source, const char* reason, const char* hostmask)
265 bool ret = del_kline(hostmask);
267 item.duration = duration;
268 strlcpy(item.hostmask,hostmask,200);
269 strlcpy(item.reason,reason,MAXBUF);
270 strlcpy(item.source,source,255);
272 item.set_time = TIME;
275 klines.push_back(item);
276 sort(klines.begin(), klines.end(),KSortComparison);
280 pklines.push_back(item);
285 // deletes a g:line, returns true if the line existed and was removed
287 bool del_gline(const char* hostmask)
289 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
291 if (!strcasecmp(hostmask,i->hostmask))
297 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++)
299 if (!strcasecmp(hostmask,i->hostmask))
308 // deletes a e:line, returns true if the line existed and was removed
310 bool del_eline(const char* hostmask)
312 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++)
314 if (!strcasecmp(hostmask,i->hostmask))
320 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++)
322 if (!strcasecmp(hostmask,i->hostmask))
331 // deletes a q:line, returns true if the line existed and was removed
333 bool del_qline(const char* nickname)
335 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
337 if (!strcasecmp(nickname,i->nick))
343 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++)
345 if (!strcasecmp(nickname,i->nick))
354 bool qline_make_global(const char* nickname)
356 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
358 if (!strcasecmp(nickname,i->nick))
367 bool zline_make_global(const char* ipaddr)
369 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
371 if (!strcasecmp(ipaddr,i->ipaddr))
380 // deletes a z:line, returns true if the line existed and was removed
382 bool del_zline(const char* ipaddr)
384 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
386 if (!strcasecmp(ipaddr,i->ipaddr))
392 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++)
394 if (!strcasecmp(ipaddr,i->ipaddr))
403 // deletes a k:line, returns true if the line existed and was removed
405 bool del_kline(const char* hostmask)
407 for (std::vector<KLine>::iterator i = klines.begin(); i != klines.end(); i++)
409 if (!strcasecmp(hostmask,i->hostmask))
415 for (std::vector<KLine>::iterator i = pklines.begin(); i != pklines.end(); i++)
417 if (!strcasecmp(hostmask,i->hostmask))
426 // returns a pointer to the reason if a nickname matches a qline, NULL if it didnt match
428 char* matches_qline(const char* nick)
430 if ((qlines.empty()) && (pqlines.empty()))
432 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
433 if (match(nick,i->nick))
435 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++)
436 if (match(nick,i->nick))
441 // returns a pointer to the reason if a host matches a gline, NULL if it didnt match
443 char* matches_gline(const char* host)
445 if ((glines.empty()) && (pglines.empty()))
447 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
448 if (match(host,i->hostmask))
450 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++)
451 if (match(host,i->hostmask))
456 char* matches_exception(const char* host)
458 if ((elines.empty()) && (pelines.empty()))
461 snprintf(host2,MAXBUF,"*@%s",host);
462 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++)
463 if ((match(host,i->hostmask)) || (match(host2,i->hostmask)))
465 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++)
466 if ((match(host,i->hostmask)) || (match(host2,i->hostmask)))
472 void gline_set_creation_time(char* host, time_t create_time)
474 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
476 if (!strcasecmp(host,i->hostmask))
478 i->set_time = create_time;
482 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++)
484 if (!strcasecmp(host,i->hostmask))
486 i->set_time = create_time;
493 void eline_set_creation_time(char* host, time_t create_time)
495 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++)
497 if (!strcasecmp(host,i->hostmask))
499 i->set_time = create_time;
503 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++)
505 if (!strcasecmp(host,i->hostmask))
507 i->set_time = create_time;
514 void qline_set_creation_time(char* nick, time_t create_time)
516 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
518 if (!strcasecmp(nick,i->nick))
520 i->set_time = create_time;
524 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++)
526 if (!strcasecmp(nick,i->nick))
528 i->set_time = create_time;
535 void zline_set_creation_time(char* ip, time_t create_time)
537 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
539 if (!strcasecmp(ip,i->ipaddr))
541 i->set_time = create_time;
545 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++)
547 if (!strcasecmp(ip,i->ipaddr))
549 i->set_time = create_time;
556 // returns a pointer to the reason if an ip address matches a zline, NULL if it didnt match
558 char* matches_zline(const char* ipaddr)
560 if ((zlines.empty()) && (pzlines.empty()))
562 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
563 if (match(ipaddr,i->ipaddr))
565 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++)
566 if (match(ipaddr,i->ipaddr))
571 // returns a pointer to the reason if a host matches a kline, NULL if it didnt match
573 char* matches_kline(const char* host)
575 if ((klines.empty()) && (pklines.empty()))
577 for (std::vector<KLine>::iterator i = klines.begin(); i != klines.end(); i++)
578 if (match(host,i->hostmask))
580 for (std::vector<KLine>::iterator i = pklines.begin(); i != pklines.end(); i++)
581 if (match(host,i->hostmask))
586 bool GSortComparison ( const GLine one, const GLine two )
588 return (one.duration + one.set_time) < (two.duration + two.set_time);
591 bool ESortComparison ( const ELine one, const ELine two )
593 return (one.duration + one.set_time) < (two.duration + two.set_time);
596 bool ZSortComparison ( const ZLine one, const ZLine two )
598 return (one.duration + one.set_time) < (two.duration + two.set_time);
601 bool KSortComparison ( const KLine one, const KLine two )
603 return (one.duration + one.set_time) < (two.duration + two.set_time);
606 bool QSortComparison ( const QLine one, const QLine two )
608 return (one.duration + one.set_time) < (two.duration + two.set_time);
611 // removes lines that have expired
615 time_t current = TIME;
617 /* Because we now store all our XLines in sorted order using (i->duration + i->set_time) as a key, this
618 * means that to expire the XLines we just need to do a while, picking off the top few until there are
619 * none left at the head of the queue that are after the current time.
622 while ((glines.size()) && (current > (glines.begin()->duration + glines.begin()->set_time)))
624 std::vector<GLine>::iterator i = glines.begin();
625 WriteOpers("*** Expiring timed G-Line %s (set by %s %d seconds ago)",i->hostmask,i->source,i->duration);
629 while ((elines.size()) && (current > (elines.begin()->duration + elines.begin()->set_time)))
631 std::vector<ELine>::iterator i = elines.begin();
632 WriteOpers("*** Expiring timed E-Line %s (set by %s %d seconds ago)",i->hostmask,i->source,i->duration);
636 while ((zlines.size()) && (current > (zlines.begin()->duration + zlines.begin()->set_time)))
638 std::vector<ZLine>::iterator i = zlines.begin();
639 WriteOpers("*** Expiring timed Z-Line %s (set by %s %d seconds ago)",i->ipaddr,i->source,i->duration);
643 while ((klines.size()) && (current > (klines.begin()->duration + klines.begin()->set_time)))
645 std::vector<KLine>::iterator i = klines.begin();
646 WriteOpers("*** Expiring timed K-Line %s (set by %s %d seconds ago)",i->hostmask,i->source,i->duration);
650 while ((qlines.size()) && (current > (qlines.begin()->duration + qlines.begin()->set_time)))
652 std::vector<QLine>::iterator i = qlines.begin();
653 WriteOpers("*** Expiring timed Q-Line %s (set by %s %d seconds ago)",i->nick,i->source,i->duration);
659 // applies lines, removing clients and changing nicks etc as applicable
661 void apply_lines(const int What)
666 if ((!glines.size()) && (!klines.size()) && (!zlines.size()) && (!qlines.size()) &&
667 (!pglines.size()) && (!pklines.size()) && (!pzlines.size()) && (!pqlines.size()))
670 CullList* Goners = new CullList();
672 for (std::vector<userrec*>::const_iterator u2 = local_users.begin(); u2 != local_users.end(); u2++)
674 userrec* u = (userrec*)(*u2);
676 if (elines.size() || pelines.size())
678 // ignore people matching exempts
679 if (matches_exception(host))
682 if ((What & APPLY_GLINES) && (glines.size() || pglines.size()))
684 if ((check = matches_gline(host)))
686 snprintf(reason,MAXBUF,"G-Lined: %s",check);
687 Goners->AddItem(u,reason);
690 if ((What & APPLY_KLINES) && (klines.size() || pklines.size()))
692 if ((check = matches_kline(host)))
694 snprintf(reason,MAXBUF,"K-Lined: %s",check);
695 Goners->AddItem(u,reason);
698 if ((What & APPLY_QLINES) && (qlines.size() || pqlines.size()))
700 if ((check = matches_qline(u->nick)))
702 snprintf(reason,MAXBUF,"Q-Lined: %s",check);
703 Goners->AddItem(u,reason);
706 if ((What & APPLY_ZLINES) && (zlines.size() || pzlines.size()))
708 if ((check = matches_zline((char*)inet_ntoa(u->ip4))))
710 snprintf(reason,MAXBUF,"Z-Lined: %s",check);
711 Goners->AddItem(u,reason);
720 void stats_k(userrec* user)
722 for (std::vector<KLine>::iterator i = klines.begin(); i != klines.end(); i++)
723 WriteServ(user->fd,"216 %s :%s %d %d %s :%s",user->nick,i->hostmask,i->set_time,i->duration,i->source,i->reason);
724 for (std::vector<KLine>::iterator i = pklines.begin(); i != pklines.end(); i++)
725 WriteServ(user->fd,"216 %s :%s %d %d %s :%s",user->nick,i->hostmask,i->set_time,i->duration,i->source,i->reason);
728 void stats_g(userrec* user)
730 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
731 WriteServ(user->fd,"223 %s :%s %d %d %s :%s",user->nick,i->hostmask,i->set_time,i->duration,i->source,i->reason);
732 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++)
733 WriteServ(user->fd,"223 %s :%s %d %d %s :%s",user->nick,i->hostmask,i->set_time,i->duration,i->source,i->reason);
736 void stats_q(userrec* user)
738 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
739 WriteServ(user->fd,"217 %s :%s %d %d %s :%s",user->nick,i->nick,i->set_time,i->duration,i->source,i->reason);
740 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++)
741 WriteServ(user->fd,"217 %s :%s %d %d %s :%s",user->nick,i->nick,i->set_time,i->duration,i->source,i->reason);
744 void stats_z(userrec* user)
746 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
747 WriteServ(user->fd,"223 %s :%s %d %d %s :%s",user->nick,i->ipaddr,i->set_time,i->duration,i->source,i->reason);
748 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++)
749 WriteServ(user->fd,"223 %s :%s %d %d %s :%s",user->nick,i->ipaddr,i->set_time,i->duration,i->source,i->reason);
752 void stats_e(userrec* user)
754 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++)
755 WriteServ(user->fd,"223 %s :%s %d %d %s :%s",user->nick,i->hostmask,i->set_time,i->duration,i->source,i->reason);
756 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++)
757 WriteServ(user->fd,"223 %s :%s %d %d %s :%s",user->nick,i->hostmask,i->set_time,i->duration,i->source,i->reason);