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