1 /* ---------------------------------------------------------------------
3 * +------------------------------------+
4 * | Inspire Internet Relay Chat Daemon |
5 * +------------------------------------+
7 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
9 * <brain@chatspike.net>
10 * <Craig@chatspike.net>
12 * Written by Craig Edwards, Craig McLure, and others.
13 * This program is free but copyrighted software; you can redistribute
14 * it and/or modify it under the terms of the GNU General Public
15 * License as published by the Free Software Foundation, version 2
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 * ---------------------------------------------------------------------
31 #include "configreader.h"
46 #include "socketengine.h"
47 #include "inspircd_se_config.h"
50 #include "command_parse.h"
52 using irc::sockets::NonBlocking;
53 using irc::sockets::insp_ntoa;
54 using irc::sockets::insp_inaddr;
55 using irc::sockets::insp_sockaddr;
61 void InspIRCd::AddServerName(const std::string &servername)
63 this->Log(DEBUG,"Adding server name: %s",servername.c_str());
65 if(find(servernames.begin(), servernames.end(), servername) == servernames.end())
66 servernames.push_back(servername); /* Wasn't already there. */
69 const char* InspIRCd::FindServerNamePtr(const std::string &servername)
71 servernamelist::iterator iter = find(servernames.begin(), servernames.end(), servername);
73 if(iter == servernames.end())
75 AddServerName(servername);
76 iter = --servernames.end();
82 bool InspIRCd::FindServerName(const std::string &servername)
84 return (find(servernames.begin(), servernames.end(), servername) != servernames.end());
87 void InspIRCd::Exit(int status)
92 void InspIRCd::Start()
94 printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
95 printf("(C) ChatSpike Development team.\033[0m\n\n");
96 printf("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\033[0m\n");
97 printf("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
98 printf("Name concept:\t\t\033[1;32mLord_Zathras\033[0m\n\n");
101 void InspIRCd::Rehash(int status)
103 SI->WriteOpers("Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(CONFIG_FILE));
104 fclose(SI->Config->log_file);
106 SI->Config->Read(false,NULL);
107 FOREACH_MOD_I(SI,I_OnRehash,OnRehash(""));
110 void InspIRCd::SetSignals(bool SEGVHandler)
112 signal (SIGALRM, SIG_IGN);
113 signal (SIGHUP, InspIRCd::Rehash);
114 signal (SIGPIPE, SIG_IGN);
115 signal (SIGTERM, InspIRCd::Exit);
118 bool InspIRCd::DaemonSeed()
121 if ((childpid = fork ()) < 0)
123 else if (childpid > 0)
125 /* We wait a few seconds here, so that the shell prompt doesnt come back over the output */
131 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
134 if (getrlimit(RLIMIT_CORE, &rl) == -1)
136 this->Log(DEFAULT,"Failed to getrlimit()!");
141 rl.rlim_cur = rl.rlim_max;
142 if (setrlimit(RLIMIT_CORE, &rl) == -1)
143 this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
149 void InspIRCd::WritePID(const std::string &filename)
151 std::ofstream outfile(filename.c_str());
152 if (outfile.is_open())
159 printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
160 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
165 std::string InspIRCd::GetRevision()
170 InspIRCd::InspIRCd(int argc, char** argv)
171 : ModCount(-1), duration_m(60), duration_h(60*60), duration_d(60*60*24), duration_w(60*60*24*7), duration_y(60*60*24*365)
173 bool SEGVHandler = false;
178 this->Config = new ServerConfig(this);
180 this->module_sockets.clear();
181 this->TIME = this->OLDTIME = this->startup_time = time(NULL);
183 this->Log(DEBUG,"*** InspIRCd starting up!");
184 if (!ServerConfig::FileExists(CONFIG_FILE))
186 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
187 this->Log(DEFAULT,"main: no config");
188 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
191 *this->LogFileName = 0;
193 for (int i = 1; i < argc; i++)
195 if (!strcmp(argv[i],"-nofork"))
197 Config->nofork = true;
199 else if(!strcmp(argv[i],"-debug"))
201 Config->forcedebug = true;
203 else if(!strcmp(argv[i],"-nolog"))
205 Config->writelog = false;
207 else if (!strcmp(argv[i],"-wait"))
211 else if (!strcmp(argv[i],"-nolimit"))
213 printf("WARNING: The `-nolimit' option is deprecated, and now on by default. This behaviour may change in the future.\n");
215 else if (!strcmp(argv[i],"-notraceback"))
219 else if (!strcmp(argv[i],"-logfile"))
223 strlcpy(LogFileName,argv[i+1],MAXBUF);
224 printf("LOG: Setting logfile to %s\n",LogFileName);
228 printf("ERROR: The -logfile parameter must be followed by a log file name and path.\n");
235 printf("Usage: %s [-nofork] [-nolog] [-debug] [-wait] [-nolimit] [-notraceback] [-logfile <filename>]\n",argv[0]);
241 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
243 this->MakeLowerMap();
246 this->stats = new serverstats();
247 this->Parser = new CommandParser(this);
248 this->Timers = new TimerManager();
249 this->XLines = new XLineManager(this);
250 Config->ClearStack();
251 Config->Read(true, NULL);
253 this->Modes = new ModeParser(this);
254 this->AddServerName(Config->ServerName);
256 InitializeDisabledCommands(Config->DisabledCommands, this);
257 stats->BoundPortCount = BindPorts(true);
259 for(int t = 0; t < 255; t++)
260 Config->global_implementation[t] = 0;
262 memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
265 this->SetSignals(SEGVHandler);
268 if (!this->DaemonSeed())
270 printf("ERROR: could not go into daemon mode. Shutting down.\n");
275 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
276 * initialize the socket engine.
278 SocketEngineFactory* SEF = new SocketEngineFactory();
279 SE = SEF->Create(this);
282 this->Res = new DNS(this);
284 this->Log(DEBUG,"RES: %08x",this->Res);
286 this->LoadAllModules();
288 /* Just in case no modules were loaded - fix for bug #101 */
289 this->BuildISupport();
291 if (!stats->BoundPortCount)
293 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
297 /* Add the listening sockets used for client inbound connections
298 * to the socket engine
300 this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
301 for (unsigned long count = 0; count < stats->BoundPortCount; count++)
303 this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]);
304 if (!SE->AddFd(Config->openSockfd[count]))
306 printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
318 printf("\nInspIRCd is now running!\n");
320 this->WritePID(Config->PID);
323 std::string InspIRCd::GetVersionString()
325 char versiondata[MAXBUF];
326 char dnsengine[] = "singlethread-object";
327 if (*Config->CustomVersion)
329 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
333 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%lu,%s,%s]",VERSION,Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
338 char* InspIRCd::ModuleError()
343 void InspIRCd::EraseFactory(int j)
346 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
351 factory.push_back(NULL);
358 void InspIRCd::EraseModule(int j)
361 for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)
367 modules.push_back(NULL);
373 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
377 Config->module_names.erase(v);
385 void InspIRCd::MoveTo(std::string modulename,int slot)
387 unsigned int v2 = 256;
388 for (unsigned int v = 0; v < Config->module_names.size(); v++)
390 if (Config->module_names[v] == modulename)
392 // found an instance, swap it with the item at the end
397 if ((v2 != (unsigned int)slot) && (v2 < 256))
399 // Swap the module names over
400 Config->module_names[v2] = Config->module_names[slot];
401 Config->module_names[slot] = modulename;
402 // now swap the module factories
403 ircd_module* temp = factory[v2];
404 factory[v2] = factory[slot];
405 factory[slot] = temp;
406 // now swap the module objects
407 Module* temp_module = modules[v2];
408 modules[v2] = modules[slot];
409 modules[slot] = temp_module;
410 // now swap the implement lists (we dont
411 // need to swap the global or recount it)
412 for (int n = 0; n < 255; n++)
414 char x = Config->implement_lists[v2][n];
415 Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
416 Config->implement_lists[slot][n] = x;
421 this->Log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
425 void InspIRCd::MoveAfter(std::string modulename, std::string after)
427 for (unsigned int v = 0; v < Config->module_names.size(); v++)
429 if (Config->module_names[v] == after)
431 MoveTo(modulename, v);
437 void InspIRCd::MoveBefore(std::string modulename, std::string before)
439 for (unsigned int v = 0; v < Config->module_names.size(); v++)
441 if (Config->module_names[v] == before)
445 MoveTo(modulename, v-1);
449 MoveTo(modulename, v);
456 void InspIRCd::MoveToFirst(std::string modulename)
458 MoveTo(modulename,0);
461 void InspIRCd::MoveToLast(std::string modulename)
463 MoveTo(modulename,this->GetModuleCount());
466 void InspIRCd::BuildISupport()
468 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
470 v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=(ohv)@%+ MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
471 v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
472 v << MAXAWAY << " CHANMODES=b,k,l,psmnti FNC NETWORK=" << Config->Network << " MAXPARA=32";
473 Config->data005 = v.str();
474 FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
477 bool InspIRCd::UnloadModule(const char* filename)
479 std::string filename_str = filename;
480 for (unsigned int j = 0; j != Config->module_names.size(); j++)
482 if (Config->module_names[j] == filename_str)
484 if (modules[j]->GetVersion().Flags & VF_STATIC)
486 this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);
487 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
490 /* Give the module a chance to tidy out all its metadata */
491 for (chan_hash::iterator c = this->chanlist.begin(); c != this->chanlist.end(); c++)
493 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
495 for (user_hash::iterator u = this->clientlist.begin(); u != this->clientlist.end(); u++)
497 modules[j]->OnCleanup(TYPE_USER,u->second);
500 FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
502 for(int t = 0; t < 255; t++)
504 Config->global_implementation[t] -= Config->implement_lists[j][t];
507 /* We have to renumber implement_lists after unload because the module numbers change!
509 for(int j2 = j; j2 < 254; j2++)
511 for(int t = 0; t < 255; t++)
513 Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
518 this->Log(DEBUG,"Removing dependent commands...");
519 Parser->RemoveCommands(filename);
520 this->Log(DEBUG,"Deleting module...");
521 this->EraseModule(j);
522 this->Log(DEBUG,"Erasing module entry...");
523 this->EraseFactory(j);
524 this->Log(DEFAULT,"Module %s unloaded",filename);
530 this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
531 snprintf(MODERR,MAXBUF,"Module not loaded");
535 bool InspIRCd::LoadModule(const char* filename)
537 char modfile[MAXBUF];
539 strlcpy(modfile,filename,MAXBUF);
541 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
543 std::string filename_str = filename;
546 if (!ServerConfig::DirValid(modfile))
548 this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);
549 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
554 this->Log(DEBUG,"Loading module: %s",modfile);
556 if (ServerConfig::FileExists(modfile))
559 for (unsigned int j = 0; j < Config->module_names.size(); j++)
561 if (Config->module_names[j] == filename_str)
563 this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
564 snprintf(MODERR,MAXBUF,"Module already loaded");
570 ircd_module* a = new ircd_module(this, modfile);
571 factory[this->ModCount+1] = a;
572 if (factory[this->ModCount+1]->LastError())
574 this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());
575 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());
578 if ((long)factory[this->ModCount+1]->factory != -1)
580 Module* m = factory[this->ModCount+1]->factory->CreateModule(this);
581 modules[this->ModCount+1] = m;
582 /* save the module and the module's classfactory, if
583 * this isnt done, random crashes can occur :/ */
584 Config->module_names.push_back(filename);
586 char* x = &Config->implement_lists[this->ModCount+1][0];
587 for(int t = 0; t < 255; t++)
590 modules[this->ModCount+1]->Implements(x);
592 for(int t = 0; t < 255; t++)
593 Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];
597 this->Log(DEFAULT,"Unable to load %s",modfile);
598 snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");
602 catch (ModuleException& modexcept)
604 this->Log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
605 snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
612 this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
613 snprintf(MODERR,MAXBUF,"Module file could not be found");
618 FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));
619 // now work out which modules, if any, want to move to the back of the queue,
620 // and if they do, move them there.
621 std::vector<std::string> put_to_back;
622 std::vector<std::string> put_to_front;
623 std::map<std::string,std::string> put_before;
624 std::map<std::string,std::string> put_after;
625 for (unsigned int j = 0; j < Config->module_names.size(); j++)
627 if (modules[j]->Prioritize() == PRIORITY_LAST)
629 put_to_back.push_back(Config->module_names[j]);
631 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
633 put_to_front.push_back(Config->module_names[j]);
635 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
637 put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
639 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
641 put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
644 for (unsigned int j = 0; j < put_to_back.size(); j++)
646 MoveToLast(put_to_back[j]);
648 for (unsigned int j = 0; j < put_to_front.size(); j++)
650 MoveToFirst(put_to_front[j]);
652 for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
654 MoveBefore(j->first,j->second);
656 for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
658 MoveAfter(j->first,j->second);
664 void InspIRCd::DoOneIteration(bool process_module_sockets)
666 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
667 * Once per loop iteration is pleanty.
672 /* Run background module timers every few seconds
673 * (the docs say modules shouldnt rely on accurate
674 * timing using this event, so we dont have to
675 * time this exactly).
680 WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
681 if ((TIME % 3600) == 0)
683 irc::whowas::MaintainWhoWas(TIME);
685 Timers->TickTimers(TIME);
686 if (process_module_sockets)
687 this->DoSocketTimeouts(TIME);
688 this->DoBackgroundUserStuff(TIME);
692 XLines->expire_lines();
693 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
694 Timers->TickMissedTimers(TIME);
698 /* Call the socket engine to wait on the active
699 * file descriptors. The socket engine has everything's
700 * descriptors in its list... dns, modules, users,
701 * servers... so its nice and easy, just one call.
702 * This will cause any read or write events to be
703 * dispatched to their handlers.
705 SE->DispatchEvents();
708 bool InspIRCd::IsIdent(const char* n)
713 for (char* i = (char*)n; *i; i++)
715 if ((*i >= 'A') && (*i <= '}'))
719 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
729 bool InspIRCd::IsNick(const char* n)
735 for (char* i = (char*)n; *i; i++, p++)
737 /* "A"-"}" can occur anywhere in a nickname */
738 if ((*i >= 'A') && (*i <= '}'))
742 /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */
743 if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i > n))
747 /* invalid character! abort */
750 return (p < NICKMAX - 1);
757 DoOneIteration(true);
759 /* This is never reached -- we hope! */
763 /**********************************************************************************/
766 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
769 int main(int argc, char** argv)
771 SI = new InspIRCd(argc, argv);
777 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
778 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
779 * registration timeout maximum seconds)
781 bool InspIRCd::AllModulesReportReady(userrec* user)
783 if (!Config->global_implementation[I_OnCheckReady])
786 for (int i = 0; i <= this->GetModuleCount(); i++)
788 if (Config->implement_lists[i][I_OnCheckReady])
790 int res = modules[i]->OnCheckReady(user);
798 int InspIRCd::GetModuleCount()
800 return this->ModCount;
803 time_t InspIRCd::Time()