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