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 InspIRCd* ServerInstance;
67 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
68 int WHOWAS_MAX = 100; // default 100 people maximum in the WHOWAS list
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)
433 this->startup_time = time(NULL);
435 log(DEBUG,"*** InspIRCd starting up!");
436 if (!FileExists(CONFIG_FILE))
438 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
439 log(DEFAULT,"main: no config");
440 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
444 for (int i = 1; i < argc; i++)
446 if (!strcmp(argv[i],"-nofork")) {
447 Config->nofork = true;
449 if (!strcmp(argv[i],"-wait")) {
452 if (!strcmp(argv[i],"-nolimit")) {
453 Config->unlimitcore = true;
458 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
460 // initialize the lowercase mapping table
461 for (unsigned int cn = 0; cn < 256; cn++)
463 // lowercase the uppercase chars
464 for (unsigned int cn = 65; cn < 91; cn++)
465 lowermap[cn] = tolower(cn);
466 // now replace the specific chars for scandanavian comparison
467 lowermap[(unsigned)'['] = '{';
468 lowermap[(unsigned)']'] = '}';
469 lowermap[(unsigned)'\\'] = '|';
473 Config->ClearStack();
474 Config->Read(true,NULL);
477 AddServerName(Config->ServerName);
479 BoundPortCount = BindPorts();
484 if (DaemonSeed() == ERROR)
486 printf("ERROR: could not go into daemon mode. Shutting down.\n");
491 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
492 * initialize the socket engine.
494 SE = new SocketEngine();
496 /* We must load the modules AFTER initializing the socket engine, now */
499 printf("\nInspIRCd is now running!\n");
504 template<typename T> inline string ConvToStr(const T &in)
507 if (!(tmp << in)) return string();
511 /* re-allocates a nick in the user_hash after they change nicknames,
512 * returns a pointer to the new user as it may have moved */
514 userrec* ReHashNick(char* Old, char* New)
516 //user_hash::iterator newnick;
517 user_hash::iterator oldnick = clientlist.find(Old);
519 log(DEBUG,"ReHashNick: %s %s",Old,New);
521 if (!strcasecmp(Old,New))
523 log(DEBUG,"old nick is new nick, skipping");
524 return oldnick->second;
527 if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
529 log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
531 userrec* olduser = oldnick->second;
532 clientlist[New] = olduser;
533 clientlist.erase(oldnick);
535 log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
537 return clientlist[New];
540 /* adds or updates an entry in the whowas list */
541 void AddWhoWas(userrec* u)
543 whowas_hash::iterator iter = whowas.find(u->nick);
544 WhoWasUser *a = new WhoWasUser();
545 strlcpy(a->nick,u->nick,NICKMAX);
546 strlcpy(a->ident,u->ident,IDENTMAX);
547 strlcpy(a->dhost,u->dhost,160);
548 strlcpy(a->host,u->host,160);
549 strlcpy(a->fullname,u->fullname,MAXGECOS);
550 strlcpy(a->server,u->server,256);
551 a->signon = u->signon;
553 /* MAX_WHOWAS: max number of /WHOWAS items
554 * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
555 * can be replaced by a newer one
558 if (iter == whowas.end())
560 if (whowas.size() >= (unsigned)WHOWAS_MAX)
562 for (whowas_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
564 // 3600 seconds in an hour ;)
565 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
567 // delete the old one
568 if (i->second) delete i->second;
569 // replace with new one
571 log(DEBUG,"added WHOWAS entry, purged an old record");
575 // no space left and user doesnt exist. Don't leave ram in use!
576 log(DEBUG,"Not able to update whowas (list at WHOWAS_MAX entries and trying to add new?), freeing excess ram");
581 log(DEBUG,"added fresh WHOWAS entry");
587 log(DEBUG,"updated WHOWAS entry");
588 if (iter->second) delete iter->second;
594 void* dns_task(void* arg)
596 userrec* u = (userrec*)arg;
597 log(DEBUG,"DNS thread for user %s",u->nick);
602 if (dns1.ReverseLookup(u->ip))
604 log(DEBUG,"DNS Step 1");
605 while (!dns1.HasResult())
609 host = dns1.GetResult();
612 log(DEBUG,"DNS Step 2: '%s'",host.c_str());
613 if (dns2.ForwardLookup(host))
615 while (!dns2.HasResult())
619 ip = dns2.GetResultIP();
620 log(DEBUG,"DNS Step 3 '%s'(%d) '%s'(%d)",ip.c_str(),ip.length(),u->ip,strlen(u->ip));
621 if (ip == std::string(u->ip))
623 log(DEBUG,"DNS Step 4");
624 if (host.length() < 160)
626 log(DEBUG,"DNS Step 5");
627 strcpy(u->host,host.c_str());
628 strcpy(u->dhost,host.c_str());
639 /* add a client connection to the sockets list */
640 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
644 user_hash::iterator iter;
646 tempnick = ConvToStr(socket) + "-unknown";
647 sprintf(tn2,"%lu-unknown",(unsigned long)socket);
649 iter = clientlist.find(tempnick);
652 // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
653 // using one as a registered connection. As theyre per fd, we can also safely assume
654 // that we wont have collisions. Therefore, if the nick exists in the list, its only
655 // used by a dead socket, erase the iterator so that the new client may reclaim it.
656 // this was probably the cause of 'server ignores me when i hammer it with reconnects'
657 // issue in earlier alphas/betas
658 if (iter != clientlist.end())
660 userrec* goner = iter->second;
662 clientlist.erase(iter);
666 * It is OK to access the value here this way since we know
667 * it exists, we just created it above.
669 * At NO other time should you access a value in a map or a
672 clientlist[tempnick] = new userrec();
675 log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
677 clientlist[tempnick]->fd = socket;
678 strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
679 strlcpy(clientlist[tempnick]->host, host,160);
680 strlcpy(clientlist[tempnick]->dhost, host,160);
681 clientlist[tempnick]->server = (char*)FindServerNamePtr(Config->ServerName);
682 strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
683 clientlist[tempnick]->registered = 0;
684 clientlist[tempnick]->signon = TIME + Config->dns_timeout;
685 clientlist[tempnick]->lastping = 1;
686 clientlist[tempnick]->port = port;
687 strlcpy(clientlist[tempnick]->ip,ip,16);
689 // set the registration timeout for this user
690 unsigned long class_regtimeout = 90;
692 long class_threshold = 5;
693 long class_sqmax = 262144; // 256kb
694 long class_rqmax = 4096; // 4k
696 for (ClassVector::iterator i = Config->Classes.begin(); i != Config->Classes.end(); i++)
698 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
700 class_regtimeout = (unsigned long)i->registration_timeout;
701 class_flood = i->flood;
702 clientlist[tempnick]->pingmax = i->pingtime;
703 class_threshold = i->threshold;
704 class_sqmax = i->sendqmax;
705 class_rqmax = i->recvqmax;
710 clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax + Config->dns_timeout;
711 clientlist[tempnick]->timeout = TIME+class_regtimeout;
712 clientlist[tempnick]->flood = class_flood;
713 clientlist[tempnick]->threshold = class_threshold;
714 clientlist[tempnick]->sendqmax = class_sqmax;
715 clientlist[tempnick]->recvqmax = class_rqmax;
720 for (int i = 0; i < MAXCHANS; i++)
721 clientlist[tempnick]->chans.push_back(a);
723 if (clientlist.size() > Config->SoftLimit)
725 kill_link(clientlist[tempnick],"No more connections allowed");
729 if (clientlist.size() >= MAXCLIENTS)
731 kill_link(clientlist[tempnick],"No more connections allowed");
735 // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
736 // its a pretty big but for the moment valid assumption:
737 // file descriptors are handed out starting at 0, and are recycled as theyre freed.
738 // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
739 // irc server at once (or the irc server otherwise initiating this many connections, files etc)
740 // which for the time being is a physical impossibility (even the largest networks dont have more
741 // than about 10,000 users on ONE server!)
742 if ((unsigned)socket > 65534)
744 kill_link(clientlist[tempnick],"Server is full");
749 char* e = matches_exception(ip);
752 char* r = matches_zline(ip);
756 snprintf(reason,MAXBUF,"Z-Lined: %s",r);
757 kill_link(clientlist[tempnick],reason);
761 fd_ref_table[socket] = clientlist[tempnick];
762 SE->AddFd(socket,true,X_ESTAB_CLIENT);
765 /* shows the message of the day, and any other on-logon stuff */
766 void FullConnectUser(userrec* user)
768 stats->statsConnects++;
769 user->idle_lastmsg = TIME;
770 log(DEBUG,"ConnectUser: %s",user->nick);
772 if ((strcmp(Passwd(user),"")) && (!user->haspassed))
774 kill_link(user,"Invalid password");
779 kill_link(user,"Unauthorised connection");
783 char match_against[MAXBUF];
784 snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
785 char* e = matches_exception(match_against);
788 char* r = matches_gline(match_against);
792 snprintf(reason,MAXBUF,"G-Lined: %s",r);
793 kill_link_silent(user,reason);
796 r = matches_kline(user->host);
800 snprintf(reason,MAXBUF,"K-Lined: %s",r);
801 kill_link_silent(user,reason);
807 WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Config->Network);
808 WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Config->Network,user->nick,user->ident,user->host);
809 WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,Config->ServerName,VERSION);
810 WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
811 WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,Config->ServerName,VERSION);
812 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
814 v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
815 v << " MAXBANS=60 NICKLEN=" << NICKMAX;
816 v << " TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=" << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=";
817 v << Config->Network;
818 std::string data005 = v.str();
819 FOREACH_MOD On005Numeric(data005);
820 // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
821 // so i'd better split it :)
822 std::stringstream out(data005);
823 std::string token = "";
824 std::string line5 = "";
825 int token_counter = 0;
829 line5 = line5 + token + " ";
831 if ((token_counter >= 13) || (out.eof() == true))
833 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
840 // fix 3 by brain, move registered = 7 below these so that spurious modes and host changes dont go out
841 // onto the network and produce 'fake direction'
842 FOREACH_MOD OnUserConnect(user);
843 FOREACH_MOD OnGlobalConnect(user);
844 user->registered = 7;
845 WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
849 /* shows the message of the day, and any other on-logon stuff */
850 void ConnectUser(userrec *user)
852 // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
853 if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
855 FullConnectUser(user);
859 std::string GetVersionString()
861 char versiondata[MAXBUF];
863 char dnsengine[] = "multithread";
865 char dnsengine[] = "singlethread";
867 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);
871 void handle_version(char **parameters, int pcnt, userrec *user)
873 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
877 bool is_valid_cmd(const char* commandname, int pcnt, userrec * user)
879 for (unsigned int i = 0; i < cmdlist.size(); i++)
881 if (!strcasecmp(cmdlist[i].command,commandname))
883 if (cmdlist[i].handler_function)
885 if ((pcnt>=cmdlist[i].min_params) && (strcasecmp(cmdlist[i].source,"<core>")))
887 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
889 if (cmdlist[i].flags_needed)
891 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
909 // calls a handler function for a command
911 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
913 for (unsigned int i = 0; i < cmdlist.size(); i++)
915 if (!strcasecmp(cmdlist[i].command,commandname))
917 if (cmdlist[i].handler_function)
919 if (pcnt>=cmdlist[i].min_params)
921 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
923 if (cmdlist[i].flags_needed)
925 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
927 cmdlist[i].handler_function(parameters,pcnt,user);
932 cmdlist[i].handler_function(parameters,pcnt,user);
942 void force_nickchange(userrec* user,const char* newnick)
949 FOREACH_RESULT(OnUserPreNick(user,newnick));
951 stats->statsCollisions++;
952 kill_link(user,"Nickname collision");
955 if (matches_qline(newnick))
957 stats->statsCollisions++;
958 kill_link(user,"Nickname collision");
966 strncpy(nick,newnick,MAXBUF);
968 if (user->registered == 7)
972 handle_nick(pars,1,user);
978 int process_parameters(char **command_p,char *parameters)
981 int q = strlen(parameters);
984 /* no parameters, command_p invalid! */
987 if (parameters[0] == ':')
989 command_p[0] = parameters+1;
994 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
996 /* only one parameter */
997 command_p[0] = parameters;
998 if (parameters[0] == ':')
1000 if (strchr(parameters,' ') != NULL)
1008 command_p[j++] = parameters;
1009 for (int i = 0; i <= q; i++)
1011 if (parameters[i] == ' ')
1013 command_p[j++] = parameters+i+1;
1014 parameters[i] = '\0';
1015 if (command_p[j-1][0] == ':')
1017 *command_p[j-1]++; /* remove dodgy ":" */
1019 /* parameter like this marks end of the sequence */
1023 return j; /* returns total number of items in the list */
1026 void process_command(userrec *user, char* cmd)
1030 char *command_p[127];
1031 char p[MAXBUF], temp[MAXBUF];
1032 int j, items, cmd_found;
1034 for (int i = 0; i < 127; i++)
1035 command_p[i] = NULL;
1050 int total_params = 0;
1053 for (unsigned int q = 0; q < strlen(cmd)-1; q++)
1055 if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
1058 // found a 'trailing', we dont count them after this.
1066 // another phidjit bug...
1067 if (total_params > 126)
1069 *(strchr(cmd,' ')) = '\0';
1070 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
1074 strlcpy(temp,cmd,MAXBUF);
1076 std::string tmp = cmd;
1077 for (int i = 0; i <= MODCOUNT; i++)
1079 std::string oldtmp = tmp;
1080 modules[i]->OnServerRaw(tmp,true,user);
1083 log(DEBUG,"A Module changed the input string!");
1084 log(DEBUG,"New string: %s",tmp.c_str());
1085 log(DEBUG,"Old string: %s",oldtmp.c_str());
1089 strlcpy(cmd,tmp.c_str(),MAXBUF);
1090 strlcpy(temp,cmd,MAXBUF);
1092 if (!strchr(cmd,' '))
1094 /* no parameters, lets skip the formalities and not chop up
1096 log(DEBUG,"About to preprocess command with no params");
1098 command_p[0] = NULL;
1100 for (unsigned int i = 0; i <= strlen(cmd); i++)
1102 cmd[i] = toupper(cmd[i]);
1110 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
1111 for (unsigned int i = 0; i < strlen(temp); i++)
1113 if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
1119 /* split the full string into a command plus parameters */
1123 if (strchr(cmd,' '))
1125 for (unsigned int i = 0; i <= strlen(cmd); i++)
1127 /* capitalise the command ONLY, leave params intact */
1128 cmd[i] = toupper(cmd[i]);
1129 /* are we nearly there yet?! :P */
1133 parameters = cmd+i+1;
1141 for (unsigned int i = 0; i <= strlen(cmd); i++)
1143 cmd[i] = toupper(cmd[i]);
1150 if (strlen(command)>MAXCOMMAND)
1152 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
1156 for (unsigned int x = 0; x < strlen(command); x++)
1158 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
1160 if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
1162 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
1164 stats->statsUnknown++;
1165 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1172 for (unsigned int i = 0; i != cmdlist.size(); i++)
1174 if (cmdlist[i].command[0])
1176 if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
1182 items = process_parameters(command_p,parameters);
1187 command_p[0] = NULL;
1193 command_p[0] = NULL;
1198 /* activity resets the ping pending timer */
1199 user->nping = TIME + user->pingmax;
1200 if ((items) < cmdlist[i].min_params)
1202 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
1203 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
1206 if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
1208 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1209 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
1213 if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
1215 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1216 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
1220 /* if the command isnt USER, PASS, or NICK, and nick is empty,
1222 if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
1224 if ((!isnick(user->nick)) || (user->registered != 7))
1226 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
1227 WriteServ(user->fd,"451 %s :You have not registered",command);
1231 if ((user->registered == 7) && (!strchr(user->modes,'o')))
1233 std::stringstream dcmds(Config->DisabledCommands);
1234 while (!dcmds.eof())
1236 std::string thiscmd;
1238 if (!strcasecmp(thiscmd.c_str(),command))
1240 // command is disabled!
1241 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
1246 if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
1248 if (cmdlist[i].handler_function)
1251 /* ikky /stats counters */
1254 cmdlist[i].use_count++;
1255 cmdlist[i].total_bytes+=strlen(temp);
1259 FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
1260 if (MOD_RESULT == 1) {
1264 /* WARNING: nothing may come after the
1265 * command handler call, as the handler
1266 * may free the user structure! */
1268 cmdlist[i].handler_function(command_p,items,user);
1274 WriteServ(user->fd,"451 %s :You have not registered",command);
1282 if ((!cmd_found) && (user))
1284 stats->statsUnknown++;
1285 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1289 bool removecommands(const char* source)
1291 bool go_again = true;
1295 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
1297 if (!strcmp(i->source,source))
1299 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
1310 void process_buffer(const char* cmdbuf,userrec *user)
1314 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
1320 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
1327 while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
1329 strlcpy(cmd,cmdbuf,MAXBUF);
1334 int sl = strlen(cmd)-1;
1335 if ((cmd[sl] == 13) || (cmd[sl] == 10))
1340 if ((cmd[sl] == 13) || (cmd[sl] == 10))
1345 while (cmd[sl] == ' ') // strip trailing spaces
1355 log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
1357 if ((user) && (cmd))
1359 process_command(user,cmd);
1363 char MODERR[MAXBUF];
1370 void InspIRCd::erase_factory(int j)
1373 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
1378 factory.push_back(NULL);
1385 void InspIRCd::erase_module(int j)
1388 for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
1394 modules.push_back(NULL);
1400 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
1404 Config->module_names.erase(v);
1412 bool InspIRCd::UnloadModule(const char* filename)
1414 std::string filename_str = filename;
1415 for (unsigned int j = 0; j != Config->module_names.size(); j++)
1417 if (Config->module_names[j] == filename_str)
1419 if (modules[j]->GetVersion().Flags & VF_STATIC)
1421 log(DEFAULT,"Failed to unload STATIC module %s",filename);
1422 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
1425 /* Give the module a chance to tidy out all its metadata */
1426 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
1428 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
1430 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
1432 modules[j]->OnCleanup(TYPE_USER,u->second);
1434 FOREACH_MOD OnUnloadModule(modules[j],Config->module_names[j]);
1436 log(DEBUG,"Deleting module...");
1438 log(DEBUG,"Erasing module entry...");
1440 log(DEBUG,"Removing dependent commands...");
1441 removecommands(filename);
1442 log(DEFAULT,"Module %s unloaded",filename);
1447 log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
1448 snprintf(MODERR,MAXBUF,"Module not loaded");
1452 bool InspIRCd::LoadModule(const char* filename)
1454 char modfile[MAXBUF];
1456 snprintf(modfile,MAXBUF,"%s",filename);
1458 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
1460 std::string filename_str = filename;
1462 if (!DirValid(modfile))
1464 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
1465 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
1469 log(DEBUG,"Loading module: %s",modfile);
1471 if (FileExists(modfile))
1474 for (unsigned int j = 0; j < Config->module_names.size(); j++)
1476 if (Config->module_names[j] == filename_str)
1478 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
1479 snprintf(MODERR,MAXBUF,"Module already loaded");
1483 ircd_module* a = new ircd_module(modfile);
1484 factory[MODCOUNT+1] = a;
1485 if (factory[MODCOUNT+1]->LastError())
1487 log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
1488 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
1492 if (factory[MODCOUNT+1]->factory)
1494 Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
1495 modules[MODCOUNT+1] = m;
1496 /* save the module and the module's classfactory, if
1497 * this isnt done, random crashes can occur :/ */
1498 Config->module_names.push_back(filename);
1502 log(DEFAULT,"Unable to load %s",modfile);
1503 snprintf(MODERR,MAXBUF,"Factory function failed!");
1510 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
1511 snprintf(MODERR,MAXBUF,"Module file could not be found");
1516 FOREACH_MOD OnLoadModule(modules[MODCOUNT],filename_str);
1522 bool expire_run = false;
1523 std::vector<int> activefds;
1527 InspSocket* s = NULL;
1528 InspSocket* s_del = NULL;
1530 unsigned int numberactive;
1531 sockaddr_in sock_us; // our port number
1532 socklen_t uslen; // length of our port number
1534 if (!Config->nofork)
1536 freopen("/dev/null","w",stdout);
1537 freopen("/dev/null","w",stderr);
1540 /* Add the listening sockets used for client inbound connections
1541 * to the socket engine
1543 for (int count = 0; count < BoundPortCount; count++)
1544 SE->AddFd(openSockfd[count],true,X_LISTEN);
1546 WritePID(Config->PID);
1548 /* main loop, this never returns */
1551 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
1552 * Once per loop iteration is pleanty.
1557 /* Run background module timers every few seconds
1558 * (the docs say modules shouldnt rely on accurate
1559 * timing using this event, so we dont have to
1560 * time this exactly).
1562 if (((TIME % 8) == 0) && (!expire_run))
1565 FOREACH_MOD OnBackgroundTimer(TIME);
1569 if ((TIME % 8) == 1)
1572 /* Once a second, do the background processing */
1573 if (TIME != OLDTIME)
1574 while (DoBackgroundUserStuff(TIME));
1576 /* Call the socket engine to wait on the active
1577 * file descriptors. The socket engine has everything's
1578 * descriptors in its list... dns, modules, users,
1579 * servers... so its nice and easy, just one call.
1581 SE->Wait(activefds);
1584 * Now process each of the fd's. For users, we have a fast
1585 * lookup table which can find a user by file descriptor, so
1586 * processing them by fd isnt expensive. If we have a lot of
1587 * listening ports or module sockets though, things could get
1590 numberactive = activefds.size();
1591 for (unsigned int activefd = 0; activefd < numberactive; activefd++)
1593 int socket_type = SE->GetType(activefds[activefd]);
1594 switch (socket_type)
1596 case X_ESTAB_CLIENT:
1598 cu = fd_ref_table[activefds[activefd]];
1604 case X_ESTAB_MODULE:
1606 /* Process module-owned sockets.
1607 * Modules are encouraged to inherit their sockets from
1608 * InspSocket so we can process them neatly like this.
1610 s = socket_ref[activefds[activefd]];
1612 if ((s) && (!s->Poll()))
1614 log(DEBUG,"Socket poll returned false, close and bail");
1615 SE->DelFd(s->GetFd());
1616 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
1618 s_del = (InspSocket*)*a;
1619 if ((s_del) && (s_del->GetFd() == activefds[activefd]))
1621 module_sockets.erase(a);
1633 /* When we are using single-threaded dns,
1634 * the sockets for dns end up in our mainloop.
1635 * When we are using multi-threaded dns,
1636 * each thread has its own basic poll() loop
1637 * within it, making them 'fire and forget'
1638 * and independent of the mainloop.
1640 #ifndef THREADED_DNS
1641 dns_poll(activefds[activefd]);
1647 /* It's a listener */
1648 uslen = sizeof(sock_us);
1649 length = sizeof(client);
1650 incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
1651 if (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen))
1653 in_port = ntohs(sock_us.sin_port);
1654 log(DEBUG,"Accepted socket %d",incomingSockfd);
1655 target = (char*)inet_ntoa(client.sin_addr);
1656 /* Years and years ago, we used to resolve here
1657 * using gethostbyaddr(). That is sucky and we
1658 * don't do that any more...
1660 if (incomingSockfd >= 0)
1662 FOREACH_MOD OnRawSocketAccept(incomingSockfd, target, in_port);
1663 stats->statsAccept++;
1664 AddClient(incomingSockfd, target, in_port, false, target);
1665 log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
1669 WriteOpers("*** WARNING: accept() failed on port %lu (%s)",(unsigned long)in_port,target);
1670 log(DEBUG,"accept failed: %lu",(unsigned long)in_port);
1671 stats->statsRefused++;
1676 log(DEBUG,"Couldnt look up the port number for fd %lu (OS BROKEN?!)",incomingSockfd);
1677 shutdown(incomingSockfd,2);
1678 close(incomingSockfd);
1683 /* Something went wrong if we're in here.
1684 * In fact, so wrong, im not quite sure
1685 * what we would do, so for now, its going
1686 * to safely do bugger all.
1693 /* This is never reached -- we hope! */
1697 /**********************************************************************************/
1700 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
1703 int main(int argc, char** argv)
1705 ServerInstance = new InspIRCd(argc, argv);
1706 ServerInstance->Run();
1707 delete ServerInstance;