src/configreader.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core: libIRCDconfigreader */
  15 /* $CopyInstall: conf/inspircd.quotes.example $(CONPATH) */
  16 /* $CopyInstall: conf/inspircd.rules.example $(CONPATH) */
  17 /* $CopyInstall: conf/inspircd.motd.example $(CONPATH) */
  18 /* $CopyInstall: conf/inspircd.helpop-full.example $(CONPATH) */
  19 /* $CopyInstall: conf/inspircd.helpop.example $(CONPATH) */
  20 /* $CopyInstall: conf/inspircd.censor.example $(CONPATH) */
  21 /* $CopyInstall: conf/inspircd.filter.example $(CONPATH) */
  22 /* $CopyInstall: docs/inspircd.conf.example $(CONPATH) */
  23
  24 #include "inspircd.h"
  25 #include <fstream>
  26 #include "xline.h"
  27 #include "exitcodes.h"
  28 #include "commands/cmd_whowas.h"
  29
  30 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
  31
  32 /* Needs forward declaration */
  33 bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, ValueItem &data);
  34
  35 ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance)
  36 {
  37         this->ClearStack();
  38         *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  39         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0';
  40         *DefaultModes = *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  41         *UserStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = *SuffixQuit = '\0';
  42         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  43         log_file = NULL;
  44         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false;
  45         CycleHosts = writelog = AllowHalfop = true;
  46         dns_timeout = DieDelay = 5;
  47         MaxTargets = 20;
  48         NetBufferSize = 10240;
  49         SoftLimit = MAXCLIENTS;
  50         MaxConn = SOMAXCONN;
  51         MaxWhoResults = 0;
  52         debugging = 0;
  53         MaxChans = 20;
  54         OperMaxChans = 30;
  55         LogLevel = DEFAULT;
  56         maxbans.clear();
  57         DNSServerValidator = &ValidateDnsServer;
  58 }
  59
  60 void ServerConfig::ClearStack()
  61 {
  62         include_stack.clear();
  63 }
  64
  65 Module* ServerConfig::GetIOHook(int port)
  66 {
  67         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  68         return (x != IOHookModule.end() ? x->second : NULL);
  69 }
  70
  71 Module* ServerConfig::GetIOHook(BufferedSocket* is)
  72 {
  73         std::map<BufferedSocket*,Module*>::iterator x = SocketIOHookModule.find(is);
  74         return (x != SocketIOHookModule.end() ? x->second : NULL);
  75 }
  76
  77 bool ServerConfig::AddIOHook(int port, Module* iomod)
  78 {
  79         if (!GetIOHook(port))
  80         {
  81                 IOHookModule[port] = iomod;
  82                 return true;
  83         }
  84         else
  85         {
  86                 throw ModuleException("Port already hooked by another module");
  87                 return false;
  88         }
  89 }
  90
  91 bool ServerConfig::AddIOHook(Module* iomod, BufferedSocket* is)
  92 {
  93         if (!GetIOHook(is))
  94         {
  95                 SocketIOHookModule[is] = iomod;
  96                 is->IsIOHooked = true;
  97                 return true;
  98         }
  99         else
 100         {
 101                 throw ModuleException("BufferedSocket derived class already hooked by another module");
 102                 return false;
 103         }
 104 }
 105
 106 bool ServerConfig::DelIOHook(int port)
 107 {
 108         std::map<int,Module*>::iterator x = IOHookModule.find(port);
 109         if (x != IOHookModule.end())
 110         {
 111                 IOHookModule.erase(x);
 112                 return true;
 113         }
 114         return false;
 115 }
 116
 117 bool ServerConfig::DelIOHook(BufferedSocket* is)
 118 {
 119         std::map<BufferedSocket*,Module*>::iterator x = SocketIOHookModule.find(is);
 120         if (x != SocketIOHookModule.end())
 121         {
 122                 SocketIOHookModule.erase(x);
 123                 return true;
 124         }
 125         return false;
 126 }
 127
 128 void ServerConfig::Update005()
 129 {
 130         std::stringstream out(data005);
 131         std::string token;
 132         std::string line5;
 133         int token_counter = 0;
 134         isupport.clear();
 135         while (out >> token)
 136         {
 137                 line5 = line5 + token + " ";
 138                 token_counter++;
 139                 if (token_counter >= 13)
 140                 {
 141                         char buf[MAXBUF];
 142                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
 143                         isupport.push_back(buf);
 144                         line5.clear();
 145                         token_counter = 0;
 146                 }
 147         }
 148         if (!line5.empty())
 149         {
 150                 char buf[MAXBUF];
 151                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
 152                 isupport.push_back(buf);
 153         }
 154 }
 155
 156 void ServerConfig::Send005(User* user)
 157 {
 158         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
 159                 user->WriteServ("005 %s %s", user->nick, line->c_str());
 160 }
 161
 162 bool ServerConfig::CheckOnce(char* tag)
 163 {
 164         int count = ConfValueEnum(this->config_data, tag);
 165
 166         if (count > 1)
 167         {
 168                 throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted.");
 169                 return false;
 170         }
 171         if (count < 1)
 172         {
 173                 throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required.");
 174                 return false;
 175         }
 176         return true;
 177 }
 178
 179 bool NoValidation(ServerConfig*, const char*, const char*, ValueItem&)
 180 {
 181         return true;
 182 }
 183
 184 bool ValidateMaxTargets(ServerConfig* conf, const char*, const char*, ValueItem &data)
 185 {
 186         if ((data.GetInteger() < 0) || (data.GetInteger() > 31))
 187         {
 188                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:maxtargets> value is greater than 31 or less than 0, set to 20.");
 189                 data.Set(20);
 190         }
 191         return true;
 192 }
 193
 194 bool ValidateSoftLimit(ServerConfig* conf, const char*, const char*, ValueItem &data)
 195 {
 196         if ((data.GetInteger() < 1) || (data.GetInteger() > MAXCLIENTS))
 197         {
 198                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:softlimit> value is greater than %d or less than 0, set to %d.",MAXCLIENTS,MAXCLIENTS);
 199                 data.Set(MAXCLIENTS);
 200         }
 201         return true;
 202 }
 203
 204 bool ValidateMaxConn(ServerConfig* conf, const char*, const char*, ValueItem &data)
 205 {
 206         if (data.GetInteger() > SOMAXCONN)
 207                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 208         return true;
 209 }
 210
 211 bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance)
 212 {
 213         std::stringstream dcmds(data);
 214         std::string thiscmd;
 215
 216         /* Enable everything first */
 217         for (Commandable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 218                 x->second->Disable(false);
 219
 220         /* Now disable all the ones which the user wants disabled */
 221         while (dcmds >> thiscmd)
 222         {
 223                 Commandable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 224                 if (cm != ServerInstance->Parser->cmdlist.end())
 225                 {
 226                         cm->second->Disable(true);
 227                 }
 228         }
 229         return true;
 230 }
 231
 232 bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data)
 233 {
 234         if (!*(data.GetString()))
 235         {
 236                 std::string nameserver;
 237                 // attempt to look up their nameserver from /etc/resolv.conf
 238                 conf->GetInstance()->Log(DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 239                 ifstream resolv("/etc/resolv.conf");
 240                 bool found_server = false;
 241
 242                 if (resolv.is_open())
 243                 {
 244                         while (resolv >> nameserver)
 245                         {
 246                                 if ((nameserver == "nameserver") && (!found_server))
 247                                 {
 248                                         resolv >> nameserver;
 249                                         data.Set(nameserver.c_str());
 250                                         found_server = true;
 251                                         conf->GetInstance()->Log(DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 252                                 }
 253                         }
 254
 255                         if (!found_server)
 256                         {
 257                                 conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 258                                 data.Set("127.0.0.1");
 259                         }
 260                 }
 261                 else
 262                 {
 263                         conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 264                         data.Set("127.0.0.1");
 265                 }
 266         }
 267         return true;
 268 }
 269
 270 bool ValidateServerName(ServerConfig* conf, const char*, const char*, ValueItem &data)
 271 {
 272         /* If we already have a servername, and they changed it, we should throw an exception. */
 273         if ((strcasecmp(conf->ServerName, data.GetString())) && (*conf->ServerName))
 274         {
 275                 throw CoreException("Configuration error: You cannot change your servername at runtime! Please restart your server for this change to be applied.");
 276                 /* We don't actually reach this return of course... */
 277                 return false;
 278         }
 279         if (!strchr(data.GetString(),'.'))
 280         {
 281                 conf->GetInstance()->Log(DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s%c'",data.GetString(),data.GetString(),'.');
 282                 std::string moo = std::string(data.GetString()).append(".");
 283                 data.Set(moo.c_str());
 284         }
 285         return true;
 286 }
 287
 288 bool ValidateNetBufferSize(ServerConfig* conf, const char*, const char*, ValueItem &data)
 289 {
 290         if ((!data.GetInteger()) || (data.GetInteger() > 65535) || (data.GetInteger() < 1024))
 291         {
 292                 conf->GetInstance()->Log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 293                 data.Set(10240);
 294         }
 295         return true;
 296 }
 297
 298 bool ValidateMaxWho(ServerConfig* conf, const char*, const char*, ValueItem &data)
 299 {
 300         if ((data.GetInteger() > 65535) || (data.GetInteger() < 1))
 301         {
 302                 conf->GetInstance()->Log(DEFAULT,"<options:maxwhoresults> size out of range, setting to default of 128.");
 303                 data.Set(128);
 304         }
 305         return true;
 306 }
 307
 308 bool ValidateLogLevel(ServerConfig* conf, const char*, const char*, ValueItem &data)
 309 {
 310         std::string dbg = data.GetString();
 311         conf->LogLevel = DEFAULT;
 312
 313         if (dbg == "debug")
 314                 conf->LogLevel = DEBUG;
 315         else if (dbg  == "verbose")
 316                 conf->LogLevel = VERBOSE;
 317         else if (dbg == "default")
 318                 conf->LogLevel = DEFAULT;
 319         else if (dbg == "sparse")
 320                 conf->LogLevel = SPARSE;
 321         else if (dbg == "none")
 322                 conf->LogLevel = NONE;
 323
 324         conf->debugging = (conf->LogLevel == DEBUG);
 325
 326         return true;
 327 }
 328
 329 bool ValidateMotd(ServerConfig* conf, const char*, const char*, ValueItem &data)
 330 {
 331         conf->ReadFile(conf->MOTD, data.GetString());
 332         return true;
 333 }
 334
 335 bool ValidateNotEmpty(ServerConfig*, const char* tag, const char*, ValueItem &data)
 336 {
 337         if (!*data.GetString())
 338                 throw CoreException(std::string("The value for ")+tag+" cannot be empty!");
 339         return true;
 340 }
 341
 342 bool ValidateRules(ServerConfig* conf, const char*, const char*, ValueItem &data)
 343 {
 344         conf->ReadFile(conf->RULES, data.GetString());
 345         return true;
 346 }
 347
 348 bool ValidateModeLists(ServerConfig* conf, const char*, const char*, ValueItem &data)
 349 {
 350         memset(conf->HideModeLists, 0, 256);
 351         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 352                 conf->HideModeLists[*x] = true;
 353         return true;
 354 }
 355
 356 bool ValidateExemptChanOps(ServerConfig* conf, const char*, const char*, ValueItem &data)
 357 {
 358         memset(conf->ExemptChanOps, 0, 256);
 359         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 360                 conf->ExemptChanOps[*x] = true;
 361         return true;
 362 }
 363
 364 bool ValidateInvite(ServerConfig* conf, const char*, const char*, ValueItem &data)
 365 {
 366         std::string v = data.GetString();
 367
 368         if (v == "ops")
 369                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 370         else if (v == "all")
 371                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 372         else if (v == "dynamic")
 373                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 374         else
 375                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 376
 377         return true;
 378 }
 379
 380 bool ValidateSID(ServerConfig* conf, const char*, const char*, ValueItem &data)
 381 {
 382         int sid = data.GetInteger();
 383         if ((sid > 999) || (sid < 0))
 384         {
 385                 sid = sid % 1000;
 386                 data.Set(sid);
 387                 conf->GetInstance()->Log(DEFAULT,"WARNING: Server ID is less than 0 or greater than 999. Set to %d", sid);
 388         }
 389         return true;
 390 }
 391
 392 bool ValidateWhoWas(ServerConfig* conf, const char*, const char*, ValueItem &data)
 393 {
 394         conf->WhoWasMaxKeep = conf->GetInstance()->Duration(data.GetString());
 395
 396         if (conf->WhoWasGroupSize < 0)
 397                 conf->WhoWasGroupSize = 0;
 398
 399         if (conf->WhoWasMaxGroups < 0)
 400                 conf->WhoWasMaxGroups = 0;
 401
 402         if (conf->WhoWasMaxKeep < 3600)
 403         {
 404                 conf->WhoWasMaxKeep = 3600;
 405                 conf->GetInstance()->Log(DEFAULT,"WARNING: <whowas:maxkeep> value less than 3600, setting to default 3600");
 406         }
 407
 408         Command* whowas_command = conf->GetInstance()->Parser->GetHandler("WHOWAS");
 409         if (whowas_command)
 410         {
 411                 std::deque<classbase*> params;
 412                 whowas_command->HandleInternal(WHOWAS_PRUNE, params);
 413         }
 414
 415         return true;
 416 }
 417
 418 /* Callback called before processing the first <connect> tag
 419  */
 420 bool InitConnect(ServerConfig* conf, const char*)
 421 {
 422         conf->GetInstance()->Log(DEFAULT,"Reading connect classes...");
 423
 424         for (ClassVector::iterator i = conf->Classes.begin(); i != conf->Classes.end(); i++)
 425         {
 426                 ConnectClass *c = *i;
 427
 428                 conf->GetInstance()->Log(DEBUG, "Address of class is %p", c);
 429         }
 430
 431         for (ClassVector::iterator i = conf->Classes.begin(); i != conf->Classes.end(); i++)
 432         {
 433                 ConnectClass *c = *i;
 434
 435                 /* only delete a class with refcount 0 */
 436                 if (c->RefCount == 0)
 437                 {
 438                         conf->GetInstance()->Log(DEFAULT, "Removing connect class, refcount is 0!");
 439                         conf->Classes.erase(i);
 440                         i = conf->Classes.begin(); // start over so we don't trample on a bad iterator
 441                 }
 442
 443                 /* also mark all existing classes disabled, if they still exist in the conf, they will be reenabled. */
 444                 c->SetDisabled(true);
 445         }
 446
 447         return true;
 448 }
 449
 450 /* Callback called to process a single <connect> tag
 451  */
 452 bool DoConnect(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 453 {
 454         ConnectClass c;
 455         const char* allow = values[0].GetString(); /* Yeah, there are a lot of values. Live with it. */
 456         const char* deny = values[1].GetString();
 457         const char* password = values[2].GetString();
 458         int timeout = values[3].GetInteger();
 459         int pingfreq = values[4].GetInteger();
 460         int flood = values[5].GetInteger();
 461         int threshold = values[6].GetInteger();
 462         int sendq = values[7].GetInteger();
 463         int recvq = values[8].GetInteger();
 464         int localmax = values[9].GetInteger();
 465         int globalmax = values[10].GetInteger();
 466         int port = values[11].GetInteger();
 467         const char* name = values[12].GetString();
 468         const char* parent = values[13].GetString();
 469         int maxchans = values[14].GetInteger();
 470         unsigned long limit = values[15].GetInteger();
 471
 472         /*
 473          * duplicates check: Now we don't delete all connect classes on rehash, we need to ensure we don't add dupes.
 474          * easier said than done, but for now we'll just disallow anything with a duplicate host or name. -- w00t
 475          */
 476         for (ClassVector::iterator item = conf->Classes.begin(); item != conf->Classes.end(); ++item)
 477         {
 478                 ConnectClass* c = *item;
 479                 if ((*name && (c->GetName() == name)) || (*allow && (c->GetHost() == allow)) || (*deny && (c->GetHost() == deny)))
 480                 {
 481                         /* reenable class so users can be shoved into it :P */
 482                         c->SetDisabled(false);
 483                         conf->GetInstance()->Log(DEFAULT, "Not adding class, it already exists!");
 484                         return true;
 485                 }
 486         }
 487
 488         conf->GetInstance()->Log(DEFAULT,"Adding a connect class!");
 489
 490         if (*parent)
 491         {
 492                 /* Find 'parent' and inherit a new class from it,
 493                  * then overwrite any values that are set here
 494                  */
 495                 for (ClassVector::iterator item = conf->Classes.begin(); item != conf->Classes.end(); ++item)
 496                 {
 497                         ConnectClass* c = *item;
 498                         if (c->GetName() == parent)
 499                         {
 500                                 ConnectClass* c = new ConnectClass(name, c);
 501                                 c->Update(timeout, flood, *allow ? allow : deny, pingfreq, password, threshold, sendq, recvq, localmax, globalmax, maxchans, port, limit);
 502                                 conf->Classes.push_back(c);
 503                         }
 504                 }
 505                 throw CoreException("Class name '" + std::string(name) + "' is configured to inherit from class '" + std::string(parent) + "' which cannot be found.");
 506         }
 507         else
 508         {
 509                 if (*allow)
 510                 {
 511                         ConnectClass* c = new ConnectClass(name, timeout, flood, allow, pingfreq, password, threshold, sendq, recvq, localmax, globalmax, maxchans);
 512                         c->limit = limit;
 513                         c->SetPort(port);
 514                         conf->Classes.push_back(c);
 515                 }
 516                 else
 517                 {
 518                         ConnectClass* c = new ConnectClass(name, deny);
 519                         c->SetPort(port);
 520                         conf->Classes.push_back(c);
 521                 }
 522         }
 523
 524         return true;
 525 }
 526
 527 /* Callback called when there are no more <connect> tags
 528  */
 529 bool DoneConnect(ServerConfig *conf, const char*)
 530 {
 531         conf->GetInstance()->Log(DEFAULT, "Done adding connect classes!");
 532         return true;
 533 }
 534
 535 /* Callback called before processing the first <uline> tag
 536  */
 537 bool InitULine(ServerConfig* conf, const char*)
 538 {
 539         conf->ulines.clear();
 540         return true;
 541 }
 542
 543 /* Callback called to process a single <uline> tag
 544  */
 545 bool DoULine(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 546 {
 547         const char* server = values[0].GetString();
 548         const bool silent = values[1].GetBool();
 549         conf->ulines[server] = silent;
 550         return true;
 551 }
 552
 553 /* Callback called when there are no more <uline> tags
 554  */
 555 bool DoneULine(ServerConfig*, const char*)
 556 {
 557         return true;
 558 }
 559
 560 /* Callback called before processing the first <module> tag
 561  */
 562 bool InitModule(ServerConfig* conf, const char*)
 563 {
 564         old_module_names.clear();
 565         new_module_names.clear();
 566         added_modules.clear();
 567         removed_modules.clear();
 568         for (std::vector<std::string>::iterator t = conf->module_names.begin(); t != conf->module_names.end(); t++)
 569         {
 570                 old_module_names.push_back(*t);
 571         }
 572         return true;
 573 }
 574
 575 /* Callback called to process a single <module> tag
 576  */
 577 bool DoModule(ServerConfig*, const char*, char**, ValueList &values, int*)
 578 {
 579         const char* modname = values[0].GetString();
 580         new_module_names.push_back(modname);
 581         return true;
 582 }
 583
 584 /* Callback called when there are no more <module> tags
 585  */
 586 bool DoneModule(ServerConfig*, const char*)
 587 {
 588         // now create a list of new modules that are due to be loaded
 589         // and a seperate list of modules which are due to be unloaded
 590         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 591         {
 592                 bool added = true;
 593
 594                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 595                 {
 596                         if (*old == *_new)
 597                                 added = false;
 598                 }
 599
 600                 if (added)
 601                         added_modules.push_back(*_new);
 602         }
 603
 604         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 605         {
 606                 bool removed = true;
 607                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 608                 {
 609                         if (*newm == *oldm)
 610                                 removed = false;
 611                 }
 612
 613                 if (removed)
 614                         removed_modules.push_back(*oldm);
 615         }
 616         return true;
 617 }
 618
 619 /* Callback called before processing the first <banlist> tag
 620  */
 621 bool InitMaxBans(ServerConfig* conf, const char*)
 622 {
 623         conf->maxbans.clear();
 624         return true;
 625 }
 626
 627 /* Callback called to process a single <banlist> tag
 628  */
 629 bool DoMaxBans(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 630 {
 631         const char* channel = values[0].GetString();
 632         int limit = values[1].GetInteger();
 633         conf->maxbans[channel] = limit;
 634         return true;
 635 }
 636
 637 /* Callback called when there are no more <banlist> tags.
 638  */
 639 bool DoneMaxBans(ServerConfig*, const char*)
 640 {
 641         return true;
 642 }
 643
 644 void ServerConfig::ReportConfigError(const std::string &errormessage, bool bail, User* user)
 645 {
 646         ServerInstance->Log(DEFAULT, "There were errors in your configuration file: %s", errormessage.c_str());
 647         if (bail)
 648         {
 649                 /* Unneeded because of the ServerInstance->Log() aboive? */
 650                 printf("There were errors in your configuration:\n%s\n\n",errormessage.c_str());
 651                 ServerInstance->Exit(EXIT_STATUS_CONFIG);
 652         }
 653         else
 654         {
 655                 std::string errors = errormessage;
 656                 std::string::size_type start;
 657                 unsigned int prefixlen;
 658                 start = 0;
 659                 /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */
 660                 if (user)
 661                 {
 662                         prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11;
 663                         user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick);
 664                         while (start < errors.length())
 665                         {
 666                                 user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 667                                 start += 510 - prefixlen;
 668                         }
 669                 }
 670                 else
 671                 {
 672                         ServerInstance->WriteOpers("There were errors in the configuration file:");
 673                         while (start < errors.length())
 674                         {
 675                                 ServerInstance->WriteOpers(errors.substr(start, 360).c_str());
 676                                 start += 360;
 677                         }
 678                 }
 679                 return;
 680         }
 681 }
 682
 683 void ServerConfig::Read(bool bail, User* user)
 684 {
 685         static char debug[MAXBUF];      /* Temporary buffer for debugging value */
 686         static char maxkeep[MAXBUF];    /* Temporary buffer for WhoWasMaxKeep value */
 687         static char hidemodes[MAXBUF];  /* Modes to not allow listing from users below halfop */
 688         static char exemptchanops[MAXBUF];      /* Exempt channel ops from these modes */
 689         static char announceinvites[MAXBUF];    /* options:announceinvites setting */
 690         int rem = 0, add = 0;           /* Number of modules added, number of modules removed */
 691         std::ostringstream errstr;      /* String stream containing the error output */
 692
 693         /* These tags MUST occur and must ONLY occur once in the config file */
 694         static char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 695
 696         /* These tags can occur ONCE or not at all */
 697         InitialConfig Values[] = {
 698                 {"options",     "softlimit",    MAXCLIENTS_S,           new ValueContainerUInt (&this->SoftLimit),              DT_INTEGER, ValidateSoftLimit},
 699                 {"options",     "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&this->MaxConn),                DT_INTEGER, ValidateMaxConn},
 700                 {"options",     "moronbanner",  "Youre banned!",        new ValueContainerChar (this->MoronBanner),             DT_CHARPTR, NoValidation},
 701                 {"server",      "name",         "",                     new ValueContainerChar (this->ServerName),              DT_CHARPTR, ValidateServerName},
 702                 {"server",      "description",  "Configure Me",         new ValueContainerChar (this->ServerDesc),              DT_CHARPTR, NoValidation},
 703                 {"server",      "network",      "Network",              new ValueContainerChar (this->Network),                 DT_CHARPTR, NoValidation},
 704                 {"server",      "id",           "0",                    new ValueContainerInt  (&this->sid),                    DT_INTEGER, ValidateSID},
 705                 {"admin",       "name",         "",                     new ValueContainerChar (this->AdminName),               DT_CHARPTR, NoValidation},
 706                 {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (this->AdminEmail),              DT_CHARPTR, NoValidation},
 707                 {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (this->AdminNick),               DT_CHARPTR, NoValidation},
 708                 {"files",       "motd",         "",                     new ValueContainerChar (this->motd),                    DT_CHARPTR, ValidateMotd},
 709                 {"files",       "rules",        "",                     new ValueContainerChar (this->rules),                   DT_CHARPTR, ValidateRules},
 710                 {"power",       "diepass",      "",                     new ValueContainerChar (this->diepass),                 DT_CHARPTR, ValidateNotEmpty},
 711                 {"power",       "pause",        "",                     new ValueContainerInt  (&this->DieDelay),               DT_INTEGER, NoValidation},
 712                 {"power",       "restartpass",  "",                     new ValueContainerChar (this->restartpass),             DT_CHARPTR, ValidateNotEmpty},
 713                 {"options",     "prefixquit",   "",                     new ValueContainerChar (this->PrefixQuit),              DT_CHARPTR, NoValidation},
 714                 {"options",     "suffixquit",   "",                     new ValueContainerChar (this->SuffixQuit),              DT_CHARPTR, NoValidation},
 715                 {"options",     "fixedquit",    "",                     new ValueContainerChar (this->FixedQuit),               DT_CHARPTR, NoValidation},
 716                 {"options",     "loglevel",     "default",              new ValueContainerChar (debug),                         DT_CHARPTR, ValidateLogLevel},
 717                 {"options",     "netbuffersize","10240",                new ValueContainerInt  (&this->NetBufferSize),          DT_INTEGER, ValidateNetBufferSize},
 718                 {"options",     "maxwho",       "128",                  new ValueContainerInt  (&this->MaxWhoResults),          DT_INTEGER, ValidateMaxWho},
 719                 {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&this->AllowHalfop),            DT_BOOLEAN, NoValidation},
 720                 {"dns",         "server",       "",                     new ValueContainerChar (this->DNSServer),               DT_CHARPTR, DNSServerValidator},
 721                 {"dns",         "timeout",      "5",                    new ValueContainerInt  (&this->dns_timeout),            DT_INTEGER, NoValidation},
 722                 {"options",     "moduledir",    MOD_PATH,               new ValueContainerChar (this->ModPath),                 DT_CHARPTR, NoValidation},
 723                 {"disabled",    "commands",     "",                     new ValueContainerChar (this->DisabledCommands),        DT_CHARPTR, NoValidation},
 724                 {"options",     "userstats",    "",                     new ValueContainerChar (this->UserStats),               DT_CHARPTR, NoValidation},
 725                 {"options",     "customversion","",                     new ValueContainerChar (this->CustomVersion),           DT_CHARPTR, NoValidation},
 726                 {"options",     "hidesplits",   "0",                    new ValueContainerBool (&this->HideSplits),             DT_BOOLEAN, NoValidation},
 727                 {"options",     "hidebans",     "0",                    new ValueContainerBool (&this->HideBans),               DT_BOOLEAN, NoValidation},
 728                 {"options",     "hidewhois",    "",                     new ValueContainerChar (this->HideWhoisServer),         DT_CHARPTR, NoValidation},
 729                 {"options",     "hidekills",    "",                     new ValueContainerChar (this->HideKillsServer),         DT_CHARPTR, NoValidation},
 730                 {"options",     "operspywhois", "0",                    new ValueContainerBool (&this->OperSpyWhois),           DT_BOOLEAN, NoValidation},
 731                 {"options",     "nouserdns",    "0",                    new ValueContainerBool (&this->NoUserDns),              DT_BOOLEAN, NoValidation},
 732                 {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&this->SyntaxHints),            DT_BOOLEAN, NoValidation},
 733                 {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&this->CycleHosts),             DT_BOOLEAN, NoValidation},
 734                 {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&this->UndernetMsgPrefix),      DT_BOOLEAN, NoValidation},
 735                 {"options",     "announceinvites", "1",                 new ValueContainerChar (announceinvites),               DT_CHARPTR, ValidateInvite},
 736                 {"options",     "hostintopic",  "1",                    new ValueContainerBool (&this->FullHostInTopic),        DT_BOOLEAN, NoValidation},
 737                 {"options",     "hidemodes",    "",                     new ValueContainerChar (hidemodes),                     DT_CHARPTR, ValidateModeLists},
 738                 {"options",     "exemptchanops","",                     new ValueContainerChar (exemptchanops),                 DT_CHARPTR, ValidateExemptChanOps},
 739                 {"options",     "maxtargets",   "20",                   new ValueContainerUInt (&this->MaxTargets),             DT_INTEGER, ValidateMaxTargets},
 740                 {"options",     "defaultmodes", "nt",                   new ValueContainerChar (this->DefaultModes),            DT_CHARPTR, NoValidation},
 741                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR, NoValidation},
 742                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER, NoValidation},
 743                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER, NoValidation},
 744                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR, ValidateWhoWas},
 745                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR, NoValidation},
 746                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER, NoValidation},
 747                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER, NoValidation},
 748                 {NULL,          NULL,           NULL,                   NULL,                                                   DT_NOTHING, NoValidation}
 749         };
 750
 751         /* These tags can occur multiple times, and therefore they have special code to read them
 752          * which is different to the code for reading the singular tags listed above.
 753          */
 754         MultiConfig MultiValues[] = {
 755
 756                 {"connect",
 757                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 758                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 759                                 "name",         "parent",       "maxchans",     "limit",
 760                                 NULL},
 761                                 {"",            "",             "",             "",             "120",          "",
 762                                  "",            "",             "",             "3",            "3",            "0",
 763                                  "",            "",             "0",            "0",
 764                                  NULL},
 765                                 {DT_CHARPTR,    DT_CHARPTR,     DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 766                                  DT_INTEGER,    DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 767                                  DT_CHARPTR,    DT_CHARPTR,     DT_INTEGER,     DT_INTEGER},
 768                                 InitConnect, DoConnect, DoneConnect},
 769
 770                 {"uline",
 771                                 {"server",      "silent",       NULL},
 772                                 {"",            "0",            NULL},
 773                                 {DT_CHARPTR,    DT_BOOLEAN},
 774                                 InitULine,DoULine,DoneULine},
 775
 776                 {"banlist",
 777                                 {"chan",        "limit",        NULL},
 778                                 {"",            "",             NULL},
 779                                 {DT_CHARPTR,    DT_INTEGER},
 780                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 781
 782                 {"module",
 783                                 {"name",        NULL},
 784                                 {"",            NULL},
 785                                 {DT_CHARPTR},
 786                                 InitModule, DoModule, DoneModule},
 787
 788                 {"badip",
 789                                 {"reason",      "ipmask",       NULL},
 790                                 {"No reason",   "",             NULL},
 791                                 {DT_CHARPTR,    DT_CHARPTR},
 792                                 InitXLine, DoZLine, DoneZLine},
 793
 794                 {"badnick",
 795                                 {"reason",      "nick",         NULL},
 796                                 {"No reason",   "",             NULL},
 797                                 {DT_CHARPTR,    DT_CHARPTR},
 798                                 InitXLine, DoQLine, DoneQLine},
 799
 800                 {"badhost",
 801                                 {"reason",      "host",         NULL},
 802                                 {"No reason",   "",             NULL},
 803                                 {DT_CHARPTR,    DT_CHARPTR},
 804                                 InitXLine, DoKLine, DoneKLine},
 805
 806                 {"exception",
 807                                 {"reason",      "host",         NULL},
 808                                 {"No reason",   "",             NULL},
 809                                 {DT_CHARPTR,    DT_CHARPTR},
 810                                 InitXLine, DoELine, DoneELine},
 811
 812                 {"type",
 813                                 {"name",        "classes",      NULL},
 814                                 {"",            "",             NULL},
 815                                 {DT_CHARPTR,    DT_CHARPTR},
 816                                 InitTypes, DoType, DoneClassesAndTypes},
 817
 818                 {"class",
 819                                 {"name",        "commands",     NULL},
 820                                 {"",            "",             NULL},
 821                                 {DT_CHARPTR,    DT_CHARPTR},
 822                                 InitClasses, DoClass, DoneClassesAndTypes},
 823
 824                 {NULL,
 825                                 {NULL},
 826                                 {NULL},
 827                                 {0},
 828                                 NULL, NULL, NULL}
 829         };
 830
 831         include_stack.clear();
 832
 833         /* Load and parse the config file, if there are any errors then explode */
 834
 835         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 836         ConfigDataHash newconfig;
 837
 838         if (this->LoadConf(newconfig, ServerInstance->ConfigFileName, errstr))
 839         {
 840                 /* If we succeeded, set the ircd config to the new one */
 841                 this->config_data = newconfig;
 842         }
 843         else
 844         {
 845                 ReportConfigError(errstr.str(), bail, user);
 846                 return;
 847         }
 848
 849         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 850         try
 851         {
 852                 /* Check we dont have more than one of singular tags, or any of them missing
 853                  */
 854                 for (int Index = 0; Once[Index]; Index++)
 855                         if (!CheckOnce(Once[Index]))
 856                                 return;
 857
 858                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 859                  */
 860                 for (int Index = 0; Values[Index].tag; Index++)
 861                 {
 862                         char item[MAXBUF];
 863                         int dt = Values[Index].datatype;
 864                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
 865                         dt &= ~DT_ALLOW_NEWLINE;
 866
 867                         ConfValue(this->config_data, Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 868                         ValueItem vi(item);
 869
 870                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 871                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 872
 873                         switch (Values[Index].datatype)
 874                         {
 875                                 case DT_CHARPTR:
 876                                 {
 877                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 878                                         /* Make sure we also copy the null terminator */
 879                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 880                                 }
 881                                 break;
 882                                 case DT_INTEGER:
 883                                 {
 884                                         int val = vi.GetInteger();
 885                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
 886                                         vci->Set(&val, sizeof(int));
 887                                 }
 888                                 break;
 889                                 case DT_BOOLEAN:
 890                                 {
 891                                         bool val = vi.GetBool();
 892                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
 893                                         vcb->Set(&val, sizeof(bool));
 894                                 }
 895                                 break;
 896                                 default:
 897                                         /* You don't want to know what happens if someones bad code sends us here. */
 898                                 break;
 899                         }
 900
 901                         /* We're done with this now */
 902                         delete Values[Index].val;
 903                 }
 904
 905                 /* Read the multiple-tag items (class tags, connect tags, etc)
 906                  * and call the callbacks associated with them. We have three
 907                  * callbacks for these, a 'start', 'item' and 'end' callback.
 908                  */
 909                 for (int Index = 0; MultiValues[Index].tag; Index++)
 910                 {
 911                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
 912
 913                         int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag);
 914
 915                         for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
 916                         {
 917                                 ValueList vl;
 918                                 for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
 919                                 {
 920                                         int dt = MultiValues[Index].datatype[valuenum];
 921                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
 922                                         dt &= ~DT_ALLOW_NEWLINE;
 923
 924                                         switch (dt)
 925                                         {
 926                                                 case DT_CHARPTR:
 927                                                 {
 928                                                         char item[MAXBUF];
 929                                                         if (ConfValue(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
 930                                                                 vl.push_back(ValueItem(item));
 931                                                         else
 932                                                                 vl.push_back(ValueItem(""));
 933                                                 }
 934                                                 break;
 935                                                 case DT_INTEGER:
 936                                                 {
 937                                                         int item = 0;
 938                                                         if (ConfValueInteger(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
 939                                                                 vl.push_back(ValueItem(item));
 940                                                         else
 941                                                                 vl.push_back(ValueItem(0));
 942                                                 }
 943                                                 break;
 944                                                 case DT_BOOLEAN:
 945                                                 {
 946                                                         bool item = ConfValueBool(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
 947                                                         vl.push_back(ValueItem(item));
 948                                                 }
 949                                                 break;
 950                                                 default:
 951                                                         /* Someone was smoking craq if we got here, and we're all gonna die. */
 952                                                 break;
 953                                         }
 954                                 }
 955
 956                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
 957                         }
 958
 959                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
 960                 }
 961
 962         }
 963
 964         catch (CoreException &ce)
 965         {
 966                 ReportConfigError(ce.GetReason(), bail, user);
 967                 return;
 968         }
 969
 970         // write once here, to try it out and make sure its ok
 971         ServerInstance->WritePID(this->PID);
 972
 973         ServerInstance->Log(DEFAULT,"Done reading configuration file.");
 974
 975         /* If we're rehashing, let's load any new modules, and unload old ones
 976          */
 977         if (!bail)
 978         {
 979                 int found_ports = 0;
 980                 FailedPortList pl;
 981                 ServerInstance->BindPorts(false, found_ports, pl);
 982
 983                 if (pl.size() && user)
 984                 {
 985                         user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick);
 986                         user->WriteServ("NOTICE %s :*** The following port(s) failed to bind:", user->nick);
 987                         int j = 1;
 988                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 989                         {
 990                                 user->WriteServ("NOTICE %s :*** %d.   IP: %s     Port: %lu", user->nick, j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
 991                         }
 992                 }
 993
 994                 if (!removed_modules.empty())
 995                 {
 996                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 997                         {
 998                                 if (ServerInstance->Modules->Unload(removing->c_str()))
 999                                 {
1000                                         ServerInstance->WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
1001
1002                                         if (user)
1003                                                 user->WriteServ("973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
1004
1005                                         rem++;
1006                                 }
1007                                 else
1008                                 {
1009                                         if (user)
1010                                                 user->WriteServ("972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->Modules->LastError());
1011                                 }
1012                         }
1013                 }
1014
1015                 if (!added_modules.empty())
1016                 {
1017                         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1018                         {
1019                                 if (ServerInstance->Modules->Load(adding->c_str()))
1020                                 {
1021                                         ServerInstance->WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
1022
1023                                         if (user)
1024                                                 user->WriteServ("975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
1025
1026                                         add++;
1027                                 }
1028                                 else
1029                                 {
1030                                         if (user)
1031                                                 user->WriteServ("974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError());
1032                                 }
1033                         }
1034                 }
1035
1036                 ServerInstance->Log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
1037         }
1038
1039         /** Note: This is safe, the method checks for user == NULL */
1040         ServerInstance->Parser->SetupCommandTable(user);
1041
1042         if (user)
1043                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick);
1044         else
1045                 ServerInstance->WriteOpers("*** Successfully rehashed server.");
1046 }
1047
1048 bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream)
1049 {
1050         std::ifstream conf(filename);
1051         std::string line;
1052         char ch;
1053         long linenumber;
1054         bool in_tag;
1055         bool in_quote;
1056         bool in_comment;
1057         int character_count = 0;
1058
1059         linenumber = 1;
1060         in_tag = false;
1061         in_quote = false;
1062         in_comment = false;
1063
1064         /* Check if the file open failed first */
1065         if (!conf)
1066         {
1067                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
1068                 return false;
1069         }
1070
1071         /* Fix the chmod of the file to restrict it to the current user and group */
1072         chmod(filename,0600);
1073
1074         for (unsigned int t = 0; t < include_stack.size(); t++)
1075         {
1076                 if (std::string(filename) == include_stack[t])
1077                 {
1078                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1079                         return false;
1080                 }
1081         }
1082
1083         /* It's not already included, add it to the list of files we've loaded */
1084         include_stack.push_back(filename);
1085
1086         /* Start reading characters... */
1087         while (conf.get(ch))
1088         {
1089
1090                 /*
1091                  * Fix for moronic windows issue spotted by Adremelech.
1092                  * Some windows editors save text files as utf-16, which is
1093                  * a total pain in the ass to parse. Users should save in the
1094                  * right config format! If we ever see a file where the first
1095                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1096                  * this is most likely a utf-16 file. Bail out and insult user.
1097                  */
1098                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1099                 {
1100                         errorstream << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1101                         return false;
1102                 }
1103
1104                 /*
1105                  * Here we try and get individual tags on separate lines,
1106                  * this would be so easy if we just made people format
1107                  * their config files like that, but they don't so...
1108                  * We check for a '<' and then know the line is over when
1109                  * we get a '>' not inside quotes. If we find two '<' and
1110                  * no '>' then die with an error.
1111                  */
1112
1113                 if ((ch == '#') && !in_quote)
1114                         in_comment = true;
1115
1116                 switch (ch)
1117                 {
1118                         case '\n':
1119                                 if (in_quote)
1120                                         line += '\n';
1121                                 linenumber++;
1122                         case '\r':
1123                                 if (!in_quote)
1124                                         in_comment = false;
1125                         case '\0':
1126                                 continue;
1127                         case '\t':
1128                                 ch = ' ';
1129                 }
1130
1131                 if(in_comment)
1132                         continue;
1133
1134                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1135                  * Note that this WILL NOT usually allow insertion of newlines,
1136                  * because a newline is two characters long. Use it primarily to
1137                  * insert the " symbol.
1138                  *
1139                  * Note that this also involves a further check when parsing the line,
1140                  * which can be found below.
1141                  */
1142                 if ((ch == '\\') && (in_quote) && (in_tag))
1143                 {
1144                         line += ch;
1145                         char real_character;
1146                         if (conf.get(real_character))
1147                         {
1148                                 if (real_character == 'n')
1149                                         real_character = '\n';
1150                                 line += real_character;
1151                                 continue;
1152                         }
1153                         else
1154                         {
1155                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1156                                 return false;
1157                         }
1158                 }
1159
1160                 if (ch != '\r')
1161                         line += ch;
1162
1163                 if (ch == '<')
1164                 {
1165                         if (in_tag)
1166                         {
1167                                 if (!in_quote)
1168                                 {
1169                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
1170                                         return false;
1171                                 }
1172                         }
1173                         else
1174                         {
1175                                 if (in_quote)
1176                                 {
1177                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
1178                                         return false;
1179                                 }
1180                                 else
1181                                 {
1182                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
1183                                         in_tag = true;
1184                                 }
1185                         }
1186                 }
1187                 else if (ch == '"')
1188                 {
1189                         if (in_tag)
1190                         {
1191                                 if (in_quote)
1192                                 {
1193                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
1194                                         in_quote = false;
1195                                 }
1196                                 else
1197                                 {
1198                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
1199                                         in_quote = true;
1200                                 }
1201                         }
1202                         else
1203                         {
1204                                 if (in_quote)
1205                                 {
1206                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1207                                 }
1208                                 else
1209                                 {
1210                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1211                                 }
1212                         }
1213                 }
1214                 else if (ch == '>')
1215                 {
1216                         if (!in_quote)
1217                         {
1218                                 if (in_tag)
1219                                 {
1220                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1221                                         in_tag = false;
1222
1223                                         /*
1224                                          * If this finds an <include> then ParseLine can simply call
1225                                          * LoadConf() and load the included config into the same ConfigDataHash
1226                                          */
1227
1228                                         if (!this->ParseLine(target, line, linenumber, errorstream))
1229                                                 return false;
1230
1231                                         line.clear();
1232                                 }
1233                                 else
1234                                 {
1235                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1236                                         return false;
1237                                 }
1238                         }
1239                 }
1240         }
1241
1242         /* Fix for bug #392 - if we reach the end of a file and we are still in a quote or comment, most likely the user fucked up */
1243         if (in_comment || in_quote)
1244         {
1245                 errorstream << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1246                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1247         }
1248
1249         return true;
1250 }
1251
1252 bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream)
1253 {
1254         return this->LoadConf(target, filename.c_str(), errorstream);
1255 }
1256
1257 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long &linenumber, std::ostringstream &errorstream)
1258 {
1259         std::string tagname;
1260         std::string current_key;
1261         std::string current_value;
1262         KeyValList results;
1263         bool got_name;
1264         bool got_key;
1265         bool in_quote;
1266
1267         got_name = got_key = in_quote = false;
1268
1269         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1270         {
1271                 if (!got_name)
1272                 {
1273                         /* We don't know the tag name yet. */
1274
1275                         if (*c != ' ')
1276                         {
1277                                 if (*c != '<')
1278                                 {
1279                                         tagname += *c;
1280                                 }
1281                         }
1282                         else
1283                         {
1284                                 /* We got to a space, we should have the tagname now. */
1285                                 if(tagname.length())
1286                                 {
1287                                         got_name = true;
1288                                 }
1289                         }
1290                 }
1291                 else
1292                 {
1293                         /* We have the tag name */
1294                         if (!got_key)
1295                         {
1296                                 /* We're still reading the key name */
1297                                 if (*c != '=')
1298                                 {
1299                                         if (*c != ' ')
1300                                         {
1301                                                 current_key += *c;
1302                                         }
1303                                 }
1304                                 else
1305                                 {
1306                                         /* We got an '=', end of the key name. */
1307                                         got_key = true;
1308                                 }
1309                         }
1310                         else
1311                         {
1312                                 /* We have the key name, now we're looking for quotes and the value */
1313
1314                                 /* Correctly handle escaped characters here.
1315                                  * See the XXX'ed section above.
1316                                  */
1317                                 if ((*c == '\\') && (in_quote))
1318                                 {
1319                                         c++;
1320                                         if (*c == 'n')
1321                                                 current_value += '\n';
1322                                         else
1323                                                 current_value += *c;
1324                                         continue;
1325                                 }
1326                                 else if ((*c == '\n') && (in_quote))
1327                                 {
1328                                         /* Got a 'real' \n, treat it as part of the value */
1329                                         current_value += '\n';
1330                                         linenumber++;
1331                                         continue;
1332                                 }
1333                                 else if ((*c == '\r') && (in_quote))
1334                                         /* Got a \r, drop it */
1335                                         continue;
1336
1337                                 if (*c == '"')
1338                                 {
1339                                         if (!in_quote)
1340                                         {
1341                                                 /* We're not already in a quote. */
1342                                                 in_quote = true;
1343                                         }
1344                                         else
1345                                         {
1346                                                 /* Leaving quotes, we have the value */
1347                                                 results.push_back(KeyVal(current_key, current_value));
1348
1349                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1350
1351                                                 in_quote = false;
1352                                                 got_key = false;
1353
1354                                                 if ((tagname == "include") && (current_key == "file"))
1355                                                 {
1356                                                         if (!this->DoInclude(target, current_value, errorstream))
1357                                                                 return false;
1358                                                 }
1359
1360                                                 current_key.clear();
1361                                                 current_value.clear();
1362                                         }
1363                                 }
1364                                 else
1365                                 {
1366                                         if (in_quote)
1367                                         {
1368                                                 current_value += *c;
1369                                         }
1370                                 }
1371                         }
1372                 }
1373         }
1374
1375         /* Finished parsing the tag, add it to the config hash */
1376         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1377
1378         return true;
1379 }
1380
1381 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1382 {
1383         std::string confpath;
1384         std::string newfile;
1385         std::string::size_type pos;
1386
1387         confpath = ServerInstance->ConfigFileName;
1388         newfile = file;
1389
1390         for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++)
1391         {
1392                 if (*c == '\\')
1393                 {
1394                         *c = '/';
1395                 }
1396         }
1397
1398         if (file[0] != '/')
1399         {
1400                 if((pos = confpath.rfind("/")) != std::string::npos)
1401                 {
1402                         /* Leaves us with just the path */
1403                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1404                 }
1405                 else
1406                 {
1407                         errorstream << "Couldn't get config path from: " << confpath << std::endl;
1408                         return false;
1409                 }
1410         }
1411
1412         return LoadConf(target, newfile, errorstream);
1413 }
1414
1415 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1416 {
1417         return ConfValue(target, tag, var, "", index, result, length, allow_linefeeds);
1418 }
1419
1420 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1421 {
1422         std::string value;
1423         bool r = ConfValue(target, std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1424         strlcpy(result, value.c_str(), length);
1425         return r;
1426 }
1427
1428 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1429 {
1430         return ConfValue(target, tag, var, "", index, result, allow_linefeeds);
1431 }
1432
1433 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds)
1434 {
1435         ConfigDataHash::size_type pos = index;
1436         if (pos < target.count(tag))
1437         {
1438                 ConfigDataHash::iterator iter = target.find(tag);
1439
1440                 for(int i = 0; i < index; i++)
1441                         iter++;
1442
1443                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1444                 {
1445                         if(j->first == var)
1446                         {
1447                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1448                                 {
1449                                         ServerInstance->Log(DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1450                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1451                                                 if (*n == '\n')
1452                                                         *n = ' ';
1453                                 }
1454                                 else
1455                                 {
1456                                         result = j->second;
1457                                         return true;
1458                                 }
1459                         }
1460                 }
1461                 if (!default_value.empty())
1462                 {
1463                         result = default_value;
1464                         return true;
1465                 }
1466         }
1467         else if(pos == 0)
1468         {
1469                 if (!default_value.empty())
1470                 {
1471                         result = default_value;
1472                         return true;
1473                 }
1474         }
1475         return false;
1476 }
1477
1478 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1479 {
1480         return ConfValueInteger(target, std::string(tag), std::string(var), "", index, result);
1481 }
1482
1483 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result)
1484 {
1485         return ConfValueInteger(target, std::string(tag), std::string(var), std::string(default_value), index, result);
1486 }
1487
1488 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1489 {
1490         return ConfValueInteger(target, tag, var, "", index, result);
1491 }
1492
1493 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1494 {
1495         std::string value;
1496         std::istringstream stream;
1497         bool r = ConfValue(target, tag, var, default_value, index, value);
1498         stream.str(value);
1499         if(!(stream >> result))
1500                 return false;
1501         else
1502         {
1503                 if (!value.empty())
1504                 {
1505                         if (value.substr(0,2) == "0x")
1506                         {
1507                                 char* endptr;
1508
1509                                 value.erase(0,2);
1510                                 result = strtol(value.c_str(), &endptr, 16);
1511
1512                                 /* No digits found */
1513                                 if (endptr == value.c_str())
1514                                         return false;
1515                         }
1516                         else
1517                         {
1518                                 char denominator = *(value.end() - 1);
1519                                 switch (toupper(denominator))
1520                                 {
1521                                         case 'K':
1522                                                 /* Kilobytes -> bytes */
1523                                                 result = result * 1024;
1524                                         break;
1525                                         case 'M':
1526                                                 /* Megabytes -> bytes */
1527                                                 result = result * 1024 * 1024;
1528                                         break;
1529                                         case 'G':
1530                                                 /* Gigabytes -> bytes */
1531                                                 result = result * 1024 * 1024 * 1024;
1532                                         break;
1533                                 }
1534                         }
1535                 }
1536         }
1537         return r;
1538 }
1539
1540
1541 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1542 {
1543         return ConfValueBool(target, std::string(tag), std::string(var), "", index);
1544 }
1545
1546 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index)
1547 {
1548         return ConfValueBool(target, std::string(tag), std::string(var), std::string(default_value), index);
1549 }
1550
1551 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1552 {
1553         return ConfValueBool(target, tag, var, "", index);
1554 }
1555
1556 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index)
1557 {
1558         std::string result;
1559         if(!ConfValue(target, tag, var, default_value, index, result))
1560                 return false;
1561
1562         return ((result == "yes") || (result == "true") || (result == "1"));
1563 }
1564
1565 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1566 {
1567         return target.count(tag);
1568 }
1569
1570 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1571 {
1572         return target.count(tag);
1573 }
1574
1575 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1576 {
1577         return ConfVarEnum(target, std::string(tag), index);
1578 }
1579
1580 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1581 {
1582         ConfigDataHash::size_type pos = index;
1583
1584         if (pos < target.count(tag))
1585         {
1586                 ConfigDataHash::const_iterator iter = target.find(tag);
1587
1588                 for(int i = 0; i < index; i++)
1589                         iter++;
1590
1591                 return iter->second.size();
1592         }
1593
1594         return 0;
1595 }
1596
1597 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1598  */
1599 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1600 {
1601         if (!fname || !*fname)
1602                 return false;
1603
1604         FILE* file = NULL;
1605         char linebuf[MAXBUF];
1606
1607         F.clear();
1608
1609         if ((*fname != '/') && (*fname != '\\'))
1610         {
1611                 std::string::size_type pos;
1612                 std::string confpath = ServerInstance->ConfigFileName;
1613                 std::string newfile = fname;
1614
1615                 if ((pos = confpath.rfind("/")) != std::string::npos)
1616                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1617                 else if ((pos = confpath.rfind("\\")) != std::string::npos)
1618                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1619
1620                 if (!FileExists(newfile.c_str()))
1621                         return false;
1622                 file =  fopen(newfile.c_str(), "r");
1623         }
1624         else
1625         {
1626                 if (!FileExists(fname))
1627                         return false;
1628                 file =  fopen(fname, "r");
1629         }
1630
1631         if (file)
1632         {
1633                 while (!feof(file))
1634                 {
1635                         if (fgets(linebuf, sizeof(linebuf), file))
1636                                 linebuf[strlen(linebuf)-1] = 0;
1637                         else
1638                                 *linebuf = 0;
1639
1640                         if (!feof(file))
1641                         {
1642                                 F.push_back(*linebuf ? linebuf : " ");
1643                         }
1644                 }
1645
1646                 fclose(file);
1647         }
1648         else
1649                 return false;
1650
1651         return true;
1652 }
1653
1654 bool ServerConfig::FileExists(const char* file)
1655 {
1656         struct stat sb;
1657         if (stat(file, &sb) == -1)
1658                 return false;
1659
1660         if ((sb.st_mode & S_IFDIR) > 0)
1661                 return false;
1662
1663         FILE *input;
1664         if ((input = fopen (file, "r")) == NULL)
1665                 return false;
1666         else
1667         {
1668                 fclose(input);
1669                 return true;
1670         }
1671 }
1672
1673 char* ServerConfig::CleanFilename(char* name)
1674 {
1675         char* p = name + strlen(name);
1676         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1677         return (p != name ? ++p : p);
1678 }
1679
1680
1681 bool ServerConfig::DirValid(const char* dirandfile)
1682 {
1683 #ifdef WINDOWS
1684         return true;
1685 #endif
1686
1687         char work[1024];
1688         char buffer[1024];
1689         char otherdir[1024];
1690         int p;
1691
1692         strlcpy(work, dirandfile, 1024);
1693         p = strlen(work);
1694
1695         // we just want the dir
1696         while (*work)
1697         {
1698                 if (work[p] == '/')
1699                 {
1700                         work[p] = '\0';
1701                         break;
1702                 }
1703
1704                 work[p--] = '\0';
1705         }
1706
1707         // Get the current working directory
1708         if (getcwd(buffer, 1024 ) == NULL )
1709                 return false;
1710
1711         if (chdir(work) == -1)
1712                 return false;
1713
1714         if (getcwd(otherdir, 1024 ) == NULL )
1715                 return false;
1716
1717         if (chdir(buffer) == -1)
1718                 return false;
1719
1720         size_t t = strlen(work);
1721
1722         if (strlen(otherdir) >= t)
1723         {
1724                 otherdir[t] = '\0';
1725                 if (!strcmp(otherdir,work))
1726                 {
1727                         return true;
1728                 }
1729
1730                 return false;
1731         }
1732         else
1733         {
1734                 return false;
1735         }
1736 }
1737
1738 std::string ServerConfig::GetFullProgDir()
1739 {
1740         char buffer[PATH_MAX+1];
1741 #ifdef WINDOWS
1742         /* Windows has specific api calls to get the exe path that never fail.
1743          * For once, windows has something of use, compared to the POSIX code
1744          * for this, this is positively neato.
1745          */
1746         if (GetModuleFileName(NULL, buffer, MAX_PATH))
1747         {
1748                 std::string fullpath = buffer;
1749                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
1750                 return std::string(fullpath, 0, n);
1751         }
1752 #else
1753         // Get the current working directory
1754         if (getcwd(buffer, PATH_MAX))
1755         {
1756                 std::string remainder = this->argv[0];
1757
1758                 /* Does argv[0] start with /? its a full path, use it */
1759                 if (remainder[0] == '/')
1760                 {
1761                         std::string::size_type n = remainder.rfind("/inspircd");
1762                         return std::string(remainder, 0, n);
1763                 }
1764
1765                 std::string fullpath = std::string(buffer) + "/" + remainder;
1766                 std::string::size_type n = fullpath.rfind("/inspircd");
1767                 return std::string(fullpath, 0, n);
1768         }
1769 #endif
1770         return "/";
1771 }
1772
1773 InspIRCd* ServerConfig::GetInstance()
1774 {
1775         return ServerInstance;
1776 }
1777
1778 std::string ServerConfig::GetSID()
1779 {
1780         std::string OurSID;
1781         OurSID += (char)((sid / 100) + 48);
1782         OurSID += (char)((sid / 10) % 10 + 48);
1783         OurSID += (char)(sid % 10 + 48);
1784         return OurSID;
1785 }
1786
1787 ValueItem::ValueItem(int value)
1788 {
1789         std::stringstream n;
1790         n << value;
1791         v = n.str();
1792 }
1793
1794 ValueItem::ValueItem(bool value)
1795 {
1796         std::stringstream n;
1797         n << value;
1798         v = n.str();
1799 }
1800
1801 ValueItem::ValueItem(char* value)
1802 {
1803         v = value;
1804 }
1805
1806 void ValueItem::Set(char* value)
1807 {
1808         v = value;
1809 }
1810
1811 void ValueItem::Set(const char* value)
1812 {
1813         v = value;
1814 }
1815
1816 void ValueItem::Set(int value)
1817 {
1818         std::stringstream n;
1819         n << value;
1820         v = n.str();
1821 }
1822
1823 int ValueItem::GetInteger()
1824 {
1825         if (v.empty())
1826                 return 0;
1827         return atoi(v.c_str());
1828 }
1829
1830 char* ValueItem::GetString()
1831 {
1832         return (char*)v.c_str();
1833 }
1834
1835 bool ValueItem::GetBool()
1836 {
1837         return (GetInteger() || v == "yes" || v == "true");
1838 }
1839
1840
1841
1842
1843 /*
1844  * XXX should this be in a class? -- w00t
1845  */
1846 bool InitTypes(ServerConfig* conf, const char*)
1847 {
1848         if (conf->opertypes.size())
1849         {
1850                 for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
1851                 {
1852                         if (n->second)
1853                                 delete[] n->second;
1854                 }
1855         }
1856
1857         conf->opertypes.clear();
1858         return true;
1859 }
1860
1861 /*
1862  * XXX should this be in a class? -- w00t
1863  */
1864 bool InitClasses(ServerConfig* conf, const char*)
1865 {
1866         if (conf->operclass.size())
1867         {
1868                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
1869                 {
1870                         if (n->second)
1871                                 delete[] n->second;
1872                 }
1873         }
1874
1875         conf->operclass.clear();
1876         return true;
1877 }
1878
1879 /*
1880  * XXX should this be in a class? -- w00t
1881  */
1882 bool DoType(ServerConfig* conf, const char*, char**, ValueList &values, int*)
1883 {
1884         const char* TypeName = values[0].GetString();
1885         const char* Classes = values[1].GetString();
1886
1887         conf->opertypes[TypeName] = strnewdup(Classes);
1888         return true;
1889 }
1890
1891 /*
1892  * XXX should this be in a class? -- w00t
1893  */
1894 bool DoClass(ServerConfig* conf, const char*, char**, ValueList &values, int*)
1895 {
1896         const char* ClassName = values[0].GetString();
1897         const char* CommandList = values[1].GetString();
1898
1899         conf->operclass[ClassName] = strnewdup(CommandList);
1900         return true;
1901 }
1902
1903 /*
1904  * XXX should this be in a class? -- w00t
1905  */
1906 bool DoneClassesAndTypes(ServerConfig*, const char*)
1907 {
1908         return true;
1909 }
1910