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