1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * Inspire is copyright (C) 2002-2005 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 * ---------------------------------------------------
17 /* Now with added unF! ;) */
21 #include "inspircd_config.h"
23 #include "inspircd_io.h"
24 #include "inspircd_util.h"
27 #include <sys/errno.h>
28 #include <sys/ioctl.h>
29 #include <sys/utsname.h>
33 #include <ext/hash_map>
55 #include "inspstring.h"
57 #include "helperfuncs.h"
59 #include "socketengine.h"
60 #include "userprocess.h"
65 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
66 int WHOWAS_MAX = 100; // default 100 people maximum in the WHOWAS list
68 time_t startup_time = time(NULL);
70 extern std::vector<Module*> modules;
71 extern std::vector<ircd_module*> factory;
73 std::vector<InspSocket*> module_sockets;
76 int openSockfd[MAXSOCKS];
77 sockaddr_in client,server;
80 extern InspSocket* socket_ref[65535];
82 time_t TIME = time(NULL), OLDTIME = time(NULL);
84 SocketEngine* SE = NULL;
86 // This table references users by file descriptor.
87 // its an array to make it VERY fast, as all lookups are referenced
88 // by an integer, meaning there is no need for a scan/search operation.
89 userrec* fd_ref_table[65536];
91 serverstats* stats = new serverstats;
92 Server* MyServer = new Server;
93 ServerConfig *Config = new ServerConfig;
98 command_table cmdlist;
100 servernamelist servernames;
101 int boundPortCount = 0;
102 std::vector<userrec*> all_opers;
106 void AddOper(userrec* user)
108 log(DEBUG,"Oper added to optimization list");
109 all_opers.push_back(user);
112 void AddServerName(std::string servername)
114 log(DEBUG,"Adding server name: %s",servername.c_str());
115 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
117 if (*a == servername)
120 servernames.push_back(servername);
123 const char* FindServerNamePtr(std::string servername)
125 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
127 if (*a == servername)
130 AddServerName(servername);
131 return FindServerNamePtr(servername);
134 void DeleteOper(userrec* user)
136 for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
140 log(DEBUG,"Oper removed from optimization list");
147 std::string GetRevision()
149 /* w00t got me to replace a bunch of strtok_r
150 * with something nicer, so i did this. Its the
151 * same thing really, only in C++. It places the
152 * text into a std::stringstream which is a readable
153 * and writeable buffer stream, and then pops two
154 * words off it, space delimited. Because it reads
155 * into the same variable twice, the first word
156 * is discarded, and the second one returned.
158 std::stringstream Revision("$Revision$");
160 Revision >> single >> single;
165 /* This function pokes and hacks at a parameter list like the following:
167 * PART #winbot,#darkgalaxy :m00!
169 * to turn it into a series of individual calls like this:
172 * PART #darkgalaxy :m00!
174 * The seperate calls are sent to a callback function provided by the caller
175 * (the caller will usually call itself recursively). The callback function
176 * must be a command handler. Calling this function on a line with no list causes
177 * no action to be taken. You must provide a starting and ending parameter number
178 * where the range of the list can be found, useful if you have a terminating
179 * parameter as above which is actually not part of the list, or parameters
180 * before the actual list as well. This code is used by many functions which
181 * can function as "one to list" (see the RFC) */
183 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
188 char blog[32][MAXBUF];
189 char blog2[32][MAXBUF];
190 int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
194 for (int i = 0; i <32; i++)
197 for (int i = 0; i <32; i++)
201 for (int i = 0; i <10; i++)
210 if (pcnt > 1) /* we have a key to copy */
212 strlcpy(keystr,parameters[1],MAXBUF);
216 if (!parameters[start])
220 if (!strchr(parameters[start],','))
225 for (int i = start; i <= end; i++)
229 strlcat(plist,parameters[i],MAXBUF);
237 for (int i = 0; i < t; i++)
242 strlcpy(blog[j++],param,MAXBUF);
246 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
251 strlcpy(blog[j++],param,MAXBUF);
254 if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
259 if ((joins) && (keystr))
261 if (strchr(keystr,','))
266 for (int i = 0; i < t2; i++)
268 if (keystr[i] == ',')
271 strlcpy(blog2[j++],param,MAXBUF);
275 strlcpy(blog2[j++],param,MAXBUF);
280 for (j = 0; j < total; j++)
286 for (q = end; q < pcnt-1; q++)
290 pars[q-end+1] = parameters[q+1];
293 if ((joins) && (parameters[1]))
304 /* repeatedly call the function with the hacked parameter list */
305 if ((joins) && (pcnt > 1))
309 // pars[1] already set up and containing key from blog2[j]
314 pars[1] = parameters[1];
320 fn(pars,pcnt-(end-start),u);
329 void kill_link(userrec *user,const char* r)
331 user_hash::iterator iter = clientlist.find(user->nick);
335 strncpy(reason,r,MAXBUF);
337 if (strlen(reason)>MAXQUIT)
339 reason[MAXQUIT-1] = '\0';
342 log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
343 Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
344 log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
346 if (user->registered == 7) {
347 FOREACH_MOD OnUserQuit(user,reason);
348 WriteCommonExcept(user,"QUIT :%s",reason);
351 user->FlushWriteBuf();
353 FOREACH_MOD OnUserDisconnect(user);
357 FOREACH_MOD OnRawSocketClose(user->fd);
362 // this must come before the WriteOpers so that it doesnt try to fill their buffer with anything
363 // if they were an oper with +s.
364 if (user->registered == 7) {
365 purge_empty_chans(user);
366 // fix by brain: only show local quits because we only show local connects (it just makes SENSE)
368 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
372 if (iter != clientlist.end())
374 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
376 fd_ref_table[user->fd] = NULL;
377 clientlist.erase(iter);
382 void kill_link_silent(userrec *user,const char* r)
384 user_hash::iterator iter = clientlist.find(user->nick);
388 strncpy(reason,r,MAXBUF);
390 if (strlen(reason)>MAXQUIT)
392 reason[MAXQUIT-1] = '\0';
395 log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
396 Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
397 log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
399 user->FlushWriteBuf();
401 if (user->registered == 7) {
402 FOREACH_MOD OnUserQuit(user,reason);
403 WriteCommonExcept(user,"QUIT :%s",reason);
406 FOREACH_MOD OnUserDisconnect(user);
410 FOREACH_MOD OnRawSocketClose(user->fd);
415 if (user->registered == 7) {
416 purge_empty_chans(user);
419 if (iter != clientlist.end())
421 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
423 fd_ref_table[user->fd] = NULL;
424 clientlist.erase(iter);
430 InspIRCd::InspIRCd(int argc, char** argv)
434 log(DEBUG,"*** InspIRCd starting up!");
435 if (!FileExists(CONFIG_FILE))
437 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
438 log(DEFAULT,"main: no config");
439 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
443 for (int i = 1; i < argc; i++)
445 if (!strcmp(argv[i],"-nofork")) {
446 Config->nofork = true;
448 if (!strcmp(argv[i],"-wait")) {
451 if (!strcmp(argv[i],"-nolimit")) {
452 Config->unlimitcore = true;
457 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
459 // initialize the lowercase mapping table
460 for (unsigned int cn = 0; cn < 256; cn++)
462 // lowercase the uppercase chars
463 for (unsigned int cn = 65; cn < 91; cn++)
464 lowermap[cn] = tolower(cn);
465 // now replace the specific chars for scandanavian comparison
466 lowermap[(unsigned)'['] = '{';
467 lowermap[(unsigned)']'] = '}';
468 lowermap[(unsigned)'\\'] = '|';
472 Config->ClearStack();
473 Config->Read(true,NULL);
476 AddServerName(Config->ServerName);
478 boundPortCount = BindPorts();
481 startup_time = time(NULL);
485 if (DaemonSeed() == ERROR)
487 printf("ERROR: could not go into daemon mode. Shutting down.\n");
492 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
493 * initialize the socket engine.
495 SE = new SocketEngine();
497 /* We must load the modules AFTER initializing the socket engine, now */
500 printf("\nInspIRCd is now running!\n");
505 template<typename T> inline string ConvToStr(const T &in)
508 if (!(tmp << in)) return string();
512 /* re-allocates a nick in the user_hash after they change nicknames,
513 * returns a pointer to the new user as it may have moved */
515 userrec* ReHashNick(char* Old, char* New)
517 //user_hash::iterator newnick;
518 user_hash::iterator oldnick = clientlist.find(Old);
520 log(DEBUG,"ReHashNick: %s %s",Old,New);
522 if (!strcasecmp(Old,New))
524 log(DEBUG,"old nick is new nick, skipping");
525 return oldnick->second;
528 if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
530 log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
532 userrec* olduser = oldnick->second;
533 clientlist[New] = olduser;
534 clientlist.erase(oldnick);
536 log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
538 return clientlist[New];
541 /* adds or updates an entry in the whowas list */
542 void AddWhoWas(userrec* u)
544 whowas_hash::iterator iter = whowas.find(u->nick);
545 WhoWasUser *a = new WhoWasUser();
546 strlcpy(a->nick,u->nick,NICKMAX);
547 strlcpy(a->ident,u->ident,IDENTMAX);
548 strlcpy(a->dhost,u->dhost,160);
549 strlcpy(a->host,u->host,160);
550 strlcpy(a->fullname,u->fullname,MAXGECOS);
551 strlcpy(a->server,u->server,256);
552 a->signon = u->signon;
554 /* MAX_WHOWAS: max number of /WHOWAS items
555 * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
556 * can be replaced by a newer one
559 if (iter == whowas.end())
561 if (whowas.size() >= (unsigned)WHOWAS_MAX)
563 for (whowas_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
565 // 3600 seconds in an hour ;)
566 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
568 // delete the old one
569 if (i->second) delete i->second;
570 // replace with new one
572 log(DEBUG,"added WHOWAS entry, purged an old record");
576 // no space left and user doesnt exist. Don't leave ram in use!
577 log(DEBUG,"Not able to update whowas (list at WHOWAS_MAX entries and trying to add new?), freeing excess ram");
582 log(DEBUG,"added fresh WHOWAS entry");
588 log(DEBUG,"updated WHOWAS entry");
589 if (iter->second) delete iter->second;
595 void* dns_task(void* arg)
597 userrec* u = (userrec*)arg;
598 log(DEBUG,"DNS thread for user %s",u->nick);
603 if (dns1.ReverseLookup(u->ip))
605 log(DEBUG,"DNS Step 1");
606 while (!dns1.HasResult())
610 host = dns1.GetResult();
613 log(DEBUG,"DNS Step 2: '%s'",host.c_str());
614 if (dns2.ForwardLookup(host))
616 while (!dns2.HasResult())
620 ip = dns2.GetResultIP();
621 log(DEBUG,"DNS Step 3 '%s'(%d) '%s'(%d)",ip.c_str(),ip.length(),u->ip,strlen(u->ip));
622 if (ip == std::string(u->ip))
624 log(DEBUG,"DNS Step 4");
625 if (host.length() < 160)
627 log(DEBUG,"DNS Step 5");
628 strcpy(u->host,host.c_str());
629 strcpy(u->dhost,host.c_str());
640 /* add a client connection to the sockets list */
641 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
645 user_hash::iterator iter;
647 tempnick = ConvToStr(socket) + "-unknown";
648 sprintf(tn2,"%lu-unknown",(unsigned long)socket);
650 iter = clientlist.find(tempnick);
653 // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
654 // using one as a registered connection. As theyre per fd, we can also safely assume
655 // that we wont have collisions. Therefore, if the nick exists in the list, its only
656 // used by a dead socket, erase the iterator so that the new client may reclaim it.
657 // this was probably the cause of 'server ignores me when i hammer it with reconnects'
658 // issue in earlier alphas/betas
659 if (iter != clientlist.end())
661 userrec* goner = iter->second;
663 clientlist.erase(iter);
667 * It is OK to access the value here this way since we know
668 * it exists, we just created it above.
670 * At NO other time should you access a value in a map or a
673 clientlist[tempnick] = new userrec();
676 log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
678 clientlist[tempnick]->fd = socket;
679 strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
680 strlcpy(clientlist[tempnick]->host, host,160);
681 strlcpy(clientlist[tempnick]->dhost, host,160);
682 clientlist[tempnick]->server = (char*)FindServerNamePtr(Config->ServerName);
683 strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
684 clientlist[tempnick]->registered = 0;
685 clientlist[tempnick]->signon = TIME + Config->dns_timeout;
686 clientlist[tempnick]->lastping = 1;
687 clientlist[tempnick]->port = port;
688 strlcpy(clientlist[tempnick]->ip,ip,16);
690 // set the registration timeout for this user
691 unsigned long class_regtimeout = 90;
693 long class_threshold = 5;
694 long class_sqmax = 262144; // 256kb
695 long class_rqmax = 4096; // 4k
697 for (ClassVector::iterator i = Config->Classes.begin(); i != Config->Classes.end(); i++)
699 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
701 class_regtimeout = (unsigned long)i->registration_timeout;
702 class_flood = i->flood;
703 clientlist[tempnick]->pingmax = i->pingtime;
704 class_threshold = i->threshold;
705 class_sqmax = i->sendqmax;
706 class_rqmax = i->recvqmax;
711 clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax + Config->dns_timeout;
712 clientlist[tempnick]->timeout = TIME+class_regtimeout;
713 clientlist[tempnick]->flood = class_flood;
714 clientlist[tempnick]->threshold = class_threshold;
715 clientlist[tempnick]->sendqmax = class_sqmax;
716 clientlist[tempnick]->recvqmax = class_rqmax;
721 for (int i = 0; i < MAXCHANS; i++)
722 clientlist[tempnick]->chans.push_back(a);
724 if (clientlist.size() > Config->SoftLimit)
726 kill_link(clientlist[tempnick],"No more connections allowed");
730 if (clientlist.size() >= MAXCLIENTS)
732 kill_link(clientlist[tempnick],"No more connections allowed");
736 // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
737 // its a pretty big but for the moment valid assumption:
738 // file descriptors are handed out starting at 0, and are recycled as theyre freed.
739 // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
740 // irc server at once (or the irc server otherwise initiating this many connections, files etc)
741 // which for the time being is a physical impossibility (even the largest networks dont have more
742 // than about 10,000 users on ONE server!)
743 if ((unsigned)socket > 65534)
745 kill_link(clientlist[tempnick],"Server is full");
750 char* e = matches_exception(ip);
753 char* r = matches_zline(ip);
757 snprintf(reason,MAXBUF,"Z-Lined: %s",r);
758 kill_link(clientlist[tempnick],reason);
762 fd_ref_table[socket] = clientlist[tempnick];
763 SE->AddFd(socket,true,X_ESTAB_CLIENT);
766 /* shows the message of the day, and any other on-logon stuff */
767 void FullConnectUser(userrec* user)
769 stats->statsConnects++;
770 user->idle_lastmsg = TIME;
771 log(DEBUG,"ConnectUser: %s",user->nick);
773 if ((strcmp(Passwd(user),"")) && (!user->haspassed))
775 kill_link(user,"Invalid password");
780 kill_link(user,"Unauthorised connection");
784 char match_against[MAXBUF];
785 snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
786 char* e = matches_exception(match_against);
789 char* r = matches_gline(match_against);
793 snprintf(reason,MAXBUF,"G-Lined: %s",r);
794 kill_link_silent(user,reason);
797 r = matches_kline(user->host);
801 snprintf(reason,MAXBUF,"K-Lined: %s",r);
802 kill_link_silent(user,reason);
808 WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Config->Network);
809 WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Config->Network,user->nick,user->ident,user->host);
810 WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,Config->ServerName,VERSION);
811 WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
812 WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,Config->ServerName,VERSION);
813 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
815 v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
816 v << " MAXBANS=60 NICKLEN=" << NICKMAX;
817 v << " TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=" << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=";
818 v << Config->Network;
819 std::string data005 = v.str();
820 FOREACH_MOD On005Numeric(data005);
821 // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
822 // so i'd better split it :)
823 std::stringstream out(data005);
824 std::string token = "";
825 std::string line5 = "";
826 int token_counter = 0;
830 line5 = line5 + token + " ";
832 if ((token_counter >= 13) || (out.eof() == true))
834 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
841 // fix 3 by brain, move registered = 7 below these so that spurious modes and host changes dont go out
842 // onto the network and produce 'fake direction'
843 FOREACH_MOD OnUserConnect(user);
844 FOREACH_MOD OnGlobalConnect(user);
845 user->registered = 7;
846 WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
850 /* shows the message of the day, and any other on-logon stuff */
851 void ConnectUser(userrec *user)
853 // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
854 if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
856 FullConnectUser(user);
860 std::string GetVersionString()
862 char versiondata[MAXBUF];
864 char dnsengine[] = "multithread";
866 char dnsengine[] = "singlethread";
868 snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s [FLAGS=%lu,%s,%s]",VERSION,GetRevision().c_str(),Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
872 void handle_version(char **parameters, int pcnt, userrec *user)
874 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
878 bool is_valid_cmd(const char* commandname, int pcnt, userrec * user)
880 for (unsigned int i = 0; i < cmdlist.size(); i++)
882 if (!strcasecmp(cmdlist[i].command,commandname))
884 if (cmdlist[i].handler_function)
886 if ((pcnt>=cmdlist[i].min_params) && (strcasecmp(cmdlist[i].source,"<core>")))
888 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
890 if (cmdlist[i].flags_needed)
892 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
910 // calls a handler function for a command
912 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
914 for (unsigned int i = 0; i < cmdlist.size(); i++)
916 if (!strcasecmp(cmdlist[i].command,commandname))
918 if (cmdlist[i].handler_function)
920 if (pcnt>=cmdlist[i].min_params)
922 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
924 if (cmdlist[i].flags_needed)
926 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
928 cmdlist[i].handler_function(parameters,pcnt,user);
933 cmdlist[i].handler_function(parameters,pcnt,user);
943 void force_nickchange(userrec* user,const char* newnick)
950 FOREACH_RESULT(OnUserPreNick(user,newnick));
952 stats->statsCollisions++;
953 kill_link(user,"Nickname collision");
956 if (matches_qline(newnick))
958 stats->statsCollisions++;
959 kill_link(user,"Nickname collision");
967 strncpy(nick,newnick,MAXBUF);
969 if (user->registered == 7)
973 handle_nick(pars,1,user);
979 int process_parameters(char **command_p,char *parameters)
982 int q = strlen(parameters);
985 /* no parameters, command_p invalid! */
988 if (parameters[0] == ':')
990 command_p[0] = parameters+1;
995 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
997 /* only one parameter */
998 command_p[0] = parameters;
999 if (parameters[0] == ':')
1001 if (strchr(parameters,' ') != NULL)
1009 command_p[j++] = parameters;
1010 for (int i = 0; i <= q; i++)
1012 if (parameters[i] == ' ')
1014 command_p[j++] = parameters+i+1;
1015 parameters[i] = '\0';
1016 if (command_p[j-1][0] == ':')
1018 *command_p[j-1]++; /* remove dodgy ":" */
1020 /* parameter like this marks end of the sequence */
1024 return j; /* returns total number of items in the list */
1027 void process_command(userrec *user, char* cmd)
1031 char *command_p[127];
1032 char p[MAXBUF], temp[MAXBUF];
1033 int j, items, cmd_found;
1035 for (int i = 0; i < 127; i++)
1036 command_p[i] = NULL;
1051 int total_params = 0;
1054 for (unsigned int q = 0; q < strlen(cmd)-1; q++)
1056 if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
1059 // found a 'trailing', we dont count them after this.
1067 // another phidjit bug...
1068 if (total_params > 126)
1070 *(strchr(cmd,' ')) = '\0';
1071 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
1075 strlcpy(temp,cmd,MAXBUF);
1077 std::string tmp = cmd;
1078 for (int i = 0; i <= MODCOUNT; i++)
1080 std::string oldtmp = tmp;
1081 modules[i]->OnServerRaw(tmp,true,user);
1084 log(DEBUG,"A Module changed the input string!");
1085 log(DEBUG,"New string: %s",tmp.c_str());
1086 log(DEBUG,"Old string: %s",oldtmp.c_str());
1090 strlcpy(cmd,tmp.c_str(),MAXBUF);
1091 strlcpy(temp,cmd,MAXBUF);
1093 if (!strchr(cmd,' '))
1095 /* no parameters, lets skip the formalities and not chop up
1097 log(DEBUG,"About to preprocess command with no params");
1099 command_p[0] = NULL;
1101 for (unsigned int i = 0; i <= strlen(cmd); i++)
1103 cmd[i] = toupper(cmd[i]);
1111 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
1112 for (unsigned int i = 0; i < strlen(temp); i++)
1114 if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
1120 /* split the full string into a command plus parameters */
1124 if (strchr(cmd,' '))
1126 for (unsigned int i = 0; i <= strlen(cmd); i++)
1128 /* capitalise the command ONLY, leave params intact */
1129 cmd[i] = toupper(cmd[i]);
1130 /* are we nearly there yet?! :P */
1134 parameters = cmd+i+1;
1142 for (unsigned int i = 0; i <= strlen(cmd); i++)
1144 cmd[i] = toupper(cmd[i]);
1151 if (strlen(command)>MAXCOMMAND)
1153 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
1157 for (unsigned int x = 0; x < strlen(command); x++)
1159 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
1161 if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
1163 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
1165 stats->statsUnknown++;
1166 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1173 for (unsigned int i = 0; i != cmdlist.size(); i++)
1175 if (cmdlist[i].command[0])
1177 if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
1183 items = process_parameters(command_p,parameters);
1188 command_p[0] = NULL;
1194 command_p[0] = NULL;
1199 /* activity resets the ping pending timer */
1200 user->nping = TIME + user->pingmax;
1201 if ((items) < cmdlist[i].min_params)
1203 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
1204 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
1207 if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
1209 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1210 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
1214 if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
1216 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1217 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
1221 /* if the command isnt USER, PASS, or NICK, and nick is empty,
1223 if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
1225 if ((!isnick(user->nick)) || (user->registered != 7))
1227 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
1228 WriteServ(user->fd,"451 %s :You have not registered",command);
1232 if ((user->registered == 7) && (!strchr(user->modes,'o')))
1234 std::stringstream dcmds(Config->DisabledCommands);
1235 while (!dcmds.eof())
1237 std::string thiscmd;
1239 if (!strcasecmp(thiscmd.c_str(),command))
1241 // command is disabled!
1242 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
1247 if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
1249 if (cmdlist[i].handler_function)
1252 /* ikky /stats counters */
1255 cmdlist[i].use_count++;
1256 cmdlist[i].total_bytes+=strlen(temp);
1260 FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
1261 if (MOD_RESULT == 1) {
1265 /* WARNING: nothing may come after the
1266 * command handler call, as the handler
1267 * may free the user structure! */
1269 cmdlist[i].handler_function(command_p,items,user);
1275 WriteServ(user->fd,"451 %s :You have not registered",command);
1283 if ((!cmd_found) && (user))
1285 stats->statsUnknown++;
1286 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1290 bool removecommands(const char* source)
1292 bool go_again = true;
1296 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
1298 if (!strcmp(i->source,source))
1300 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
1311 void process_buffer(const char* cmdbuf,userrec *user)
1315 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
1321 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
1328 while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
1330 strlcpy(cmd,cmdbuf,MAXBUF);
1335 int sl = strlen(cmd)-1;
1336 if ((cmd[sl] == 13) || (cmd[sl] == 10))
1341 if ((cmd[sl] == 13) || (cmd[sl] == 10))
1346 while (cmd[sl] == ' ') // strip trailing spaces
1356 log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
1358 if ((user) && (cmd))
1360 process_command(user,cmd);
1364 char MODERR[MAXBUF];
1371 void erase_factory(int j)
1374 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
1379 factory.push_back(NULL);
1386 void erase_module(int j)
1389 for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
1395 modules.push_back(NULL);
1401 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
1405 Config->module_names.erase(v);
1413 bool UnloadModule(const char* filename)
1415 std::string filename_str = filename;
1416 for (unsigned int j = 0; j != Config->module_names.size(); j++)
1418 if (Config->module_names[j] == filename_str)
1420 if (modules[j]->GetVersion().Flags & VF_STATIC)
1422 log(DEFAULT,"Failed to unload STATIC module %s",filename);
1423 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
1426 /* Give the module a chance to tidy out all its metadata */
1427 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
1429 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
1431 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
1433 modules[j]->OnCleanup(TYPE_USER,u->second);
1435 FOREACH_MOD OnUnloadModule(modules[j],Config->module_names[j]);
1437 log(DEBUG,"Deleting module...");
1439 log(DEBUG,"Erasing module entry...");
1441 log(DEBUG,"Removing dependent commands...");
1442 removecommands(filename);
1443 log(DEFAULT,"Module %s unloaded",filename);
1448 log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
1449 snprintf(MODERR,MAXBUF,"Module not loaded");
1453 bool LoadModule(const char* filename)
1455 char modfile[MAXBUF];
1457 snprintf(modfile,MAXBUF,"%s",filename);
1459 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
1461 std::string filename_str = filename;
1463 if (!DirValid(modfile))
1465 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
1466 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
1470 log(DEBUG,"Loading module: %s",modfile);
1472 if (FileExists(modfile))
1475 for (unsigned int j = 0; j < Config->module_names.size(); j++)
1477 if (Config->module_names[j] == filename_str)
1479 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
1480 snprintf(MODERR,MAXBUF,"Module already loaded");
1484 ircd_module* a = new ircd_module(modfile);
1485 factory[MODCOUNT+1] = a;
1486 if (factory[MODCOUNT+1]->LastError())
1488 log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
1489 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
1493 if (factory[MODCOUNT+1]->factory)
1495 Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
1496 modules[MODCOUNT+1] = m;
1497 /* save the module and the module's classfactory, if
1498 * this isnt done, random crashes can occur :/ */
1499 Config->module_names.push_back(filename);
1503 log(DEFAULT,"Unable to load %s",modfile);
1504 snprintf(MODERR,MAXBUF,"Factory function failed!");
1511 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
1512 snprintf(MODERR,MAXBUF,"Module file could not be found");
1517 FOREACH_MOD OnLoadModule(modules[MODCOUNT],filename_str);
1523 bool expire_run = false;
1524 std::vector<int> activefds;
1528 InspSocket* s = NULL;
1529 InspSocket* s_del = NULL;
1531 unsigned int numberactive;
1532 sockaddr_in sock_us; // our port number
1533 socklen_t uslen; // length of our port number
1535 if (!Config->nofork)
1537 freopen("/dev/null","w",stdout);
1538 freopen("/dev/null","w",stderr);
1541 /* Add the listening sockets used for client inbound connections
1542 * to the socket engine
1544 for (int count = 0; count < portCount; count++)
1545 SE->AddFd(openSockfd[count],true,X_LISTEN);
1547 WritePID(Config->PID);
1549 /* main loop, this never returns */
1552 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
1553 * Once per loop iteration is pleanty.
1558 /* Run background module timers every few seconds
1559 * (the docs say modules shouldnt rely on accurate
1560 * timing using this event, so we dont have to
1561 * time this exactly).
1563 if (((TIME % 8) == 0) && (!expire_run))
1566 FOREACH_MOD OnBackgroundTimer(TIME);
1570 if ((TIME % 8) == 1)
1573 /* Once a second, do the background processing */
1574 if (TIME != OLDTIME)
1575 while (DoBackgroundUserStuff(TIME));
1577 /* Call the socket engine to wait on the active
1578 * file descriptors. The socket engine has everything's
1579 * descriptors in its list... dns, modules, users,
1580 * servers... so its nice and easy, just one call.
1582 SE->Wait(activefds);
1585 * Now process each of the fd's. For users, we have a fast
1586 * lookup table which can find a user by file descriptor, so
1587 * processing them by fd isnt expensive. If we have a lot of
1588 * listening ports or module sockets though, things could get
1591 numberactive = activefds.size();
1592 for (unsigned int activefd = 0; activefd < numberactive; activefd++)
1594 int socket_type = SE->GetType(activefds[activefd]);
1595 switch (socket_type)
1597 case X_ESTAB_CLIENT:
1599 cu = fd_ref_table[activefds[activefd]];
1605 case X_ESTAB_MODULE:
1607 /* Process module-owned sockets.
1608 * Modules are encouraged to inherit their sockets from
1609 * InspSocket so we can process them neatly like this.
1611 s = socket_ref[activefds[activefd]];
1613 if ((s) && (!s->Poll()))
1615 log(DEBUG,"Socket poll returned false, close and bail");
1616 SE->DelFd(s->GetFd());
1617 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
1619 s_del = (InspSocket*)*a;
1620 if ((s_del) && (s_del->GetFd() == activefds[activefd]))
1622 module_sockets.erase(a);
1634 /* When we are using single-threaded dns,
1635 * the sockets for dns end up in our mainloop.
1636 * When we are using multi-threaded dns,
1637 * each thread has its own basic poll() loop
1638 * within it, making them 'fire and forget'
1639 * and independent of the mainloop.
1641 #ifndef THREADED_DNS
1642 dns_poll(activefds[activefd]);
1648 /* It's a listener */
1649 uslen = sizeof(sock_us);
1650 length = sizeof(client);
1651 incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
1652 if (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen))
1654 in_port = ntohs(sock_us.sin_port);
1655 log(DEBUG,"Accepted socket %d",incomingSockfd);
1656 target = (char*)inet_ntoa(client.sin_addr);
1657 /* Years and years ago, we used to resolve here
1658 * using gethostbyaddr(). That is sucky and we
1659 * don't do that any more...
1661 if (incomingSockfd >= 0)
1663 FOREACH_MOD OnRawSocketAccept(incomingSockfd, target, in_port);
1664 stats->statsAccept++;
1665 AddClient(incomingSockfd, target, in_port, false, target);
1666 log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
1670 WriteOpers("*** WARNING: accept() failed on port %lu (%s)",(unsigned long)in_port,target);
1671 log(DEBUG,"accept failed: %lu",(unsigned long)in_port);
1672 stats->statsRefused++;
1677 log(DEBUG,"Couldnt look up the port number for fd %lu (OS BROKEN?!)",incomingSockfd);
1678 shutdown(incomingSockfd,2);
1679 close(incomingSockfd);
1684 /* Something went wrong if we're in here.
1685 * In fact, so wrong, im not quite sure
1686 * what we would do, so for now, its going
1687 * to safely do bugger all.
1694 /* This is never reached -- we hope! */
1698 /**********************************************************************************/
1701 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
1704 int main(int argc, char** argv)
1706 InspIRCd TittyBiscuits = new InspIRCd(argc, argv);
1707 TittyBiscuits->Run();
1708 delete TittyBiscuits;