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